058c0ee3b539121559d9800645be11c0139c2254
[ffmpeg.git] / avconv.c
1 /*
2  * avconv main
3  * Copyright (c) 2000-2011 The libav developers.
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int disabled;           /** 1 is this mapping is disabled by a negative map */
83     int file_index;
84     int stream_index;
85     int sync_file_index;
86     int sync_stream_index;
87 } StreamMap;
88
89 /**
90  * select an input file for an output file
91  */
92 typedef struct MetadataMap {
93     int  file;      ///< file index
94     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95     int  index;     ///< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 static int video_discard = 0;
101 static int same_quant = 0;
102 static int do_deinterlace = 0;
103 static int intra_dc_precision = 8;
104 static int qp_hist = 0;
105
106 static int file_overwrite = 0;
107 static int do_benchmark = 0;
108 static int do_hex_dump = 0;
109 static int do_pkt_dump = 0;
110 static int do_pass = 0;
111 static char *pass_logfilename_prefix = NULL;
112 static int video_sync_method= -1;
113 static int audio_sync_method= 0;
114 static float audio_drift_threshold= 0.1;
115 static int copy_ts= 0;
116 static int copy_tb;
117 static int opt_shortest = 0;
118 static char *vstats_filename;
119 static FILE *vstats_file;
120 static int copy_initial_nonkeyframes = 0;
121
122 static int audio_volume = 256;
123
124 static int exit_on_error = 0;
125 static int using_stdin = 0;
126 static int64_t video_size = 0;
127 static int64_t audio_size = 0;
128 static int64_t extra_size = 0;
129 static int nb_frames_dup = 0;
130 static int nb_frames_drop = 0;
131 static int input_sync;
132
133 static float dts_delta_threshold = 10;
134
135 static uint8_t *audio_buf;
136 static uint8_t *audio_out;
137 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
138
139 static void *samples;
140
141 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
142
143 typedef struct InputStream {
144     int file_index;
145     AVStream *st;
146     int discard;             /* true if stream data should be discarded */
147     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
148     AVCodec *dec;
149
150     int64_t       start;     /* time when read started */
151     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
152                                 is not defined */
153     int64_t       pts;       /* current pts */
154     PtsCorrectionContext pts_ctx;
155     double ts_scale;
156     int is_start;            /* is 1 at the start and after a discontinuity */
157     int showed_multi_packet_warning;
158     AVDictionary *opts;
159 } InputStream;
160
161 typedef struct InputFile {
162     AVFormatContext *ctx;
163     int eof_reached;      /* true if eof reached */
164     int ist_index;        /* index of first stream in ist_table */
165     int buffer_size;      /* current total buffer size */
166     int64_t ts_offset;
167     int nb_streams;       /* number of stream that avconv is aware of; may be different
168                              from ctx.nb_streams if new streams appear during av_read_frame() */
169     int rate_emu;
170 } InputFile;
171
172 typedef struct OutputStream {
173     int file_index;          /* file index */
174     int index;               /* stream index in the output file */
175     int source_index;        /* InputStream index */
176     AVStream *st;            /* stream in the output file */
177     int encoding_needed;     /* true if encoding needed for this stream */
178     int frame_number;
179     /* input pts and corresponding output pts
180        for A/V sync */
181     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
182     struct InputStream *sync_ist; /* input stream to sync against */
183     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
184     AVBitStreamFilterContext *bitstream_filters;
185     AVCodec *enc;
186     int64_t max_frames;
187
188     /* video only */
189     int video_resample;
190     AVFrame pict_tmp;      /* temporary image for resampling */
191     struct SwsContext *img_resample_ctx; /* for image resampling */
192     int resample_height;
193     int resample_width;
194     int resample_pix_fmt;
195     AVRational frame_rate;
196     int force_fps;
197     int top_field_first;
198
199     float frame_aspect_ratio;
200
201     /* forced key frames */
202     int64_t *forced_kf_pts;
203     int forced_kf_count;
204     int forced_kf_index;
205
206     /* audio only */
207     int audio_resample;
208     ReSampleContext *resample; /* for audio resampling */
209     int resample_sample_fmt;
210     int resample_channels;
211     int resample_sample_rate;
212     int reformat_pair;
213     AVAudioConvert *reformat_ctx;
214     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
215     FILE *logfile;
216
217 #if CONFIG_AVFILTER
218     AVFilterContext *output_video_filter;
219     AVFilterContext *input_video_filter;
220     AVFilterBufferRef *picref;
221     char *avfilter;
222     AVFilterGraph *graph;
223 #endif
224
225    int sws_flags;
226    AVDictionary *opts;
227    int is_past_recording_time;
228 } OutputStream;
229
230
231 typedef struct OutputFile {
232     AVFormatContext *ctx;
233     AVDictionary *opts;
234     int ost_index;       /* index of the first stream in output_streams */
235     int64_t recording_time; /* desired length of the resulting file in microseconds */
236     int64_t start_time;     /* start time in microseconds */
237     uint64_t limit_filesize;
238 } OutputFile;
239
240 static InputStream *input_streams = NULL;
241 static int         nb_input_streams = 0;
242 static InputFile   *input_files   = NULL;
243 static int         nb_input_files   = 0;
244
245 static OutputStream *output_streams = NULL;
246 static int        nb_output_streams = 0;
247 static OutputFile   *output_files   = NULL;
248 static int        nb_output_files   = 0;
249
250 typedef struct OptionsContext {
251     /* input/output options */
252     int64_t start_time;
253     const char *format;
254
255     SpecifierOpt *codec_names;
256     int        nb_codec_names;
257     SpecifierOpt *audio_channels;
258     int        nb_audio_channels;
259     SpecifierOpt *audio_sample_rate;
260     int        nb_audio_sample_rate;
261     SpecifierOpt *frame_rates;
262     int        nb_frame_rates;
263     SpecifierOpt *frame_sizes;
264     int        nb_frame_sizes;
265     SpecifierOpt *frame_pix_fmts;
266     int        nb_frame_pix_fmts;
267
268     /* input options */
269     int64_t input_ts_offset;
270     int rate_emu;
271
272     SpecifierOpt *ts_scale;
273     int        nb_ts_scale;
274
275     /* output options */
276     StreamMap *stream_maps;
277     int     nb_stream_maps;
278     /* first item specifies output metadata, second is input */
279     MetadataMap (*meta_data_maps)[2];
280     int nb_meta_data_maps;
281     int metadata_global_manual;
282     int metadata_streams_manual;
283     int metadata_chapters_manual;
284
285     int chapters_input_file;
286
287     int64_t recording_time;
288     uint64_t limit_filesize;
289     float mux_preload;
290     float mux_max_delay;
291
292     int video_disable;
293     int audio_disable;
294     int subtitle_disable;
295     int data_disable;
296
297     /* indexed by output file stream index */
298     int   *streamid_map;
299     int nb_streamid_map;
300
301     SpecifierOpt *metadata;
302     int        nb_metadata;
303     SpecifierOpt *max_frames;
304     int        nb_max_frames;
305     SpecifierOpt *bitstream_filters;
306     int        nb_bitstream_filters;
307     SpecifierOpt *codec_tags;
308     int        nb_codec_tags;
309     SpecifierOpt *sample_fmts;
310     int        nb_sample_fmts;
311     SpecifierOpt *qscale;
312     int        nb_qscale;
313     SpecifierOpt *forced_key_frames;
314     int        nb_forced_key_frames;
315     SpecifierOpt *force_fps;
316     int        nb_force_fps;
317     SpecifierOpt *frame_aspect_ratios;
318     int        nb_frame_aspect_ratios;
319     SpecifierOpt *rc_overrides;
320     int        nb_rc_overrides;
321     SpecifierOpt *intra_matrices;
322     int        nb_intra_matrices;
323     SpecifierOpt *inter_matrices;
324     int        nb_inter_matrices;
325     SpecifierOpt *top_field_first;
326     int        nb_top_field_first;
327 #if CONFIG_AVFILTER
328     SpecifierOpt *filters;
329     int        nb_filters;
330 #endif
331 } OptionsContext;
332
333 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
334 {\
335     int i, ret;\
336     for (i = 0; i < o->nb_ ## name; i++) {\
337         char *spec = o->name[i].specifier;\
338         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
339             outvar = o->name[i].u.type;\
340         else if (ret < 0)\
341             exit_program(1);\
342     }\
343 }
344
345 static void reset_options(OptionsContext *o)
346 {
347     const OptionDef *po = options;
348
349     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
350     while (po->name) {
351         void *dst = (uint8_t*)o + po->u.off;
352
353         if (po->flags & OPT_SPEC) {
354             SpecifierOpt **so = dst;
355             int i, *count = (int*)(so + 1);
356             for (i = 0; i < *count; i++) {
357                 av_freep(&(*so)[i].specifier);
358                 if (po->flags & OPT_STRING)
359                     av_freep(&(*so)[i].u.str);
360             }
361             av_freep(so);
362             *count = 0;
363         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
364             av_freep(dst);
365         po++;
366     }
367
368     av_freep(&o->stream_maps);
369     av_freep(&o->meta_data_maps);
370     av_freep(&o->streamid_map);
371
372     memset(o, 0, sizeof(*o));
373
374     o->mux_preload    = 0.5;
375     o->mux_max_delay  = 0.7;
376     o->recording_time = INT64_MAX;
377     o->limit_filesize = UINT64_MAX;
378     o->chapters_input_file = INT_MAX;
379
380     uninit_opts();
381     init_opts();
382 }
383
384 #if CONFIG_AVFILTER
385
386 static int configure_video_filters(InputStream *ist, OutputStream *ost)
387 {
388     AVFilterContext *last_filter, *filter;
389     /** filter graph containing all filters including input & output */
390     AVCodecContext *codec = ost->st->codec;
391     AVCodecContext *icodec = ist->st->codec;
392     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
393     AVRational sample_aspect_ratio;
394     char args[255];
395     int ret;
396
397     ost->graph = avfilter_graph_alloc();
398
399     if (ist->st->sample_aspect_ratio.num){
400         sample_aspect_ratio = ist->st->sample_aspect_ratio;
401     }else
402         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
403
404     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
405              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
406              sample_aspect_ratio.num, sample_aspect_ratio.den);
407
408     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
409                                        "src", args, NULL, ost->graph);
410     if (ret < 0)
411         return ret;
412     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
413                                        "out", NULL, &ffsink_ctx, ost->graph);
414     if (ret < 0)
415         return ret;
416     last_filter = ost->input_video_filter;
417
418     if (codec->width  != icodec->width || codec->height != icodec->height) {
419         snprintf(args, 255, "%d:%d:flags=0x%X",
420                  codec->width,
421                  codec->height,
422                  ost->sws_flags);
423         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
424                                                 NULL, args, NULL, ost->graph)) < 0)
425             return ret;
426         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
427             return ret;
428         last_filter = filter;
429     }
430
431     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
432     ost->graph->scale_sws_opts = av_strdup(args);
433
434     if (ost->avfilter) {
435         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
436         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
437
438         outputs->name    = av_strdup("in");
439         outputs->filter_ctx = last_filter;
440         outputs->pad_idx = 0;
441         outputs->next    = NULL;
442
443         inputs->name    = av_strdup("out");
444         inputs->filter_ctx = ost->output_video_filter;
445         inputs->pad_idx = 0;
446         inputs->next    = NULL;
447
448         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
449             return ret;
450         av_freep(&ost->avfilter);
451     } else {
452         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
453             return ret;
454     }
455
456     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
457         return ret;
458
459     codec->width  = ost->output_video_filter->inputs[0]->w;
460     codec->height = ost->output_video_filter->inputs[0]->h;
461     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
462         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
463         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
464         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
465
466     return 0;
467 }
468 #endif /* CONFIG_AVFILTER */
469
470 static void term_exit(void)
471 {
472     av_log(NULL, AV_LOG_QUIET, "");
473 }
474
475 static volatile int received_sigterm = 0;
476 static volatile int received_nb_signals = 0;
477
478 static void
479 sigterm_handler(int sig)
480 {
481     received_sigterm = sig;
482     received_nb_signals++;
483     term_exit();
484 }
485
486 static void term_init(void)
487 {
488     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
489     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
490 #ifdef SIGXCPU
491     signal(SIGXCPU, sigterm_handler);
492 #endif
493 }
494
495 static int decode_interrupt_cb(void)
496 {
497     return received_nb_signals > 1;
498 }
499
500 void exit_program(int ret)
501 {
502     int i;
503
504     /* close files */
505     for(i=0;i<nb_output_files;i++) {
506         AVFormatContext *s = output_files[i].ctx;
507         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
508             avio_close(s->pb);
509         avformat_free_context(s);
510         av_dict_free(&output_files[i].opts);
511     }
512     for(i=0;i<nb_input_files;i++) {
513         av_close_input_file(input_files[i].ctx);
514     }
515     for (i = 0; i < nb_input_streams; i++)
516         av_dict_free(&input_streams[i].opts);
517
518     if (vstats_file)
519         fclose(vstats_file);
520     av_free(vstats_filename);
521
522     av_freep(&input_streams);
523     av_freep(&input_files);
524     av_freep(&output_streams);
525     av_freep(&output_files);
526
527     uninit_opts();
528     av_free(audio_buf);
529     av_free(audio_out);
530     allocated_audio_buf_size= allocated_audio_out_size= 0;
531     av_free(samples);
532
533 #if CONFIG_AVFILTER
534     avfilter_uninit();
535 #endif
536
537     if (received_sigterm) {
538         av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
539                (int) received_sigterm);
540         exit (255);
541     }
542
543     exit(ret); /* not all OS-es handle main() return value */
544 }
545
546 static void assert_avoptions(AVDictionary *m)
547 {
548     AVDictionaryEntry *t;
549     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
550         av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
551         exit_program(1);
552     }
553 }
554
555 static void assert_codec_experimental(AVCodecContext *c, int encoder)
556 {
557     const char *codec_string = encoder ? "encoder" : "decoder";
558     AVCodec *codec;
559     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
560         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
561         av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
562                 "results.\nAdd '-strict experimental' if you want to use it.\n",
563                 codec_string, c->codec->name);
564         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
565         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
566             av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
567                    codec_string, codec->name);
568         exit_program(1);
569     }
570 }
571
572 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
573 {
574     if(codec && codec->sample_fmts){
575         const enum AVSampleFormat *p= codec->sample_fmts;
576         for(; *p!=-1; p++){
577             if(*p == st->codec->sample_fmt)
578                 break;
579         }
580         if (*p == -1) {
581             av_log(NULL, AV_LOG_WARNING,
582                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
583                    av_get_sample_fmt_name(st->codec->sample_fmt),
584                    codec->name,
585                    av_get_sample_fmt_name(codec->sample_fmts[0]));
586             st->codec->sample_fmt = codec->sample_fmts[0];
587         }
588     }
589 }
590
591 /**
592  * Update the requested input sample format based on the output sample format.
593  * This is currently only used to request float output from decoders which
594  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
595  * Ideally this will be removed in the future when decoders do not do format
596  * conversion and only output in their native format.
597  */
598 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
599                               AVCodecContext *enc)
600 {
601     /* if sample formats match or a decoder sample format has already been
602        requested, just return */
603     if (enc->sample_fmt == dec->sample_fmt ||
604         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
605         return;
606
607     /* if decoder supports more than one output format */
608     if (dec_codec && dec_codec->sample_fmts &&
609         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
610         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
611         const enum AVSampleFormat *p;
612         int min_dec = -1, min_inc = -1;
613
614         /* find a matching sample format in the encoder */
615         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
616             if (*p == enc->sample_fmt) {
617                 dec->request_sample_fmt = *p;
618                 return;
619             } else if (*p > enc->sample_fmt) {
620                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
621             } else
622                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
623         }
624
625         /* if none match, provide the one that matches quality closest */
626         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
627                                   enc->sample_fmt - min_dec;
628     }
629 }
630
631 static void choose_sample_rate(AVStream *st, AVCodec *codec)
632 {
633     if(codec && codec->supported_samplerates){
634         const int *p= codec->supported_samplerates;
635         int best=0;
636         int best_dist=INT_MAX;
637         for(; *p; p++){
638             int dist= abs(st->codec->sample_rate - *p);
639             if(dist < best_dist){
640                 best_dist= dist;
641                 best= *p;
642             }
643         }
644         if(best_dist){
645             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
646         }
647         st->codec->sample_rate= best;
648     }
649 }
650
651 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
652 {
653     if(codec && codec->pix_fmts){
654         const enum PixelFormat *p= codec->pix_fmts;
655         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
656             if(st->codec->codec_id==CODEC_ID_MJPEG){
657                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
658             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
659                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
660             }
661         }
662         for(; *p!=-1; p++){
663             if(*p == st->codec->pix_fmt)
664                 break;
665         }
666         if (*p == -1) {
667             if(st->codec->pix_fmt != PIX_FMT_NONE)
668                 av_log(NULL, AV_LOG_WARNING,
669                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
670                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
671                         codec->name,
672                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
673             st->codec->pix_fmt = codec->pix_fmts[0];
674         }
675     }
676 }
677
678 static double
679 get_sync_ipts(const OutputStream *ost)
680 {
681     const InputStream *ist = ost->sync_ist;
682     OutputFile *of = &output_files[ost->file_index];
683     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
684 }
685
686 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
687     int ret;
688
689     while(bsfc){
690         AVPacket new_pkt= *pkt;
691         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
692                                           &new_pkt.data, &new_pkt.size,
693                                           pkt->data, pkt->size,
694                                           pkt->flags & AV_PKT_FLAG_KEY);
695         if(a>0){
696             av_free_packet(pkt);
697             new_pkt.destruct= av_destruct_packet;
698         } else if(a<0){
699             av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
700                    bsfc->filter->name, pkt->stream_index,
701                    avctx->codec ? avctx->codec->name : "copy");
702             print_error("", a);
703             if (exit_on_error)
704                 exit_program(1);
705         }
706         *pkt= new_pkt;
707
708         bsfc= bsfc->next;
709     }
710
711     ret= av_interleaved_write_frame(s, pkt);
712     if(ret < 0){
713         print_error("av_interleaved_write_frame()", ret);
714         exit_program(1);
715     }
716 }
717
718 static void do_audio_out(AVFormatContext *s,
719                          OutputStream *ost,
720                          InputStream *ist,
721                          unsigned char *buf, int size)
722 {
723     uint8_t *buftmp;
724     int64_t audio_out_size, audio_buf_size;
725     int64_t allocated_for_size= size;
726
727     int size_out, frame_bytes, ret, resample_changed;
728     AVCodecContext *enc= ost->st->codec;
729     AVCodecContext *dec= ist->st->codec;
730     int osize = av_get_bytes_per_sample(enc->sample_fmt);
731     int isize = av_get_bytes_per_sample(dec->sample_fmt);
732     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
733
734 need_realloc:
735     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
736     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
737     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
738     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
739     audio_buf_size*= osize*enc->channels;
740
741     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
742     if(coded_bps > 8*osize)
743         audio_out_size= audio_out_size * coded_bps / (8*osize);
744     audio_out_size += FF_MIN_BUFFER_SIZE;
745
746     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
747         av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
748         exit_program(1);
749     }
750
751     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
752     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
753     if (!audio_buf || !audio_out){
754         av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
755         exit_program(1);
756     }
757
758     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
759         ost->audio_resample = 1;
760
761     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
762                        ost->resample_channels    != dec->channels   ||
763                        ost->resample_sample_rate != dec->sample_rate;
764
765     if ((ost->audio_resample && !ost->resample) || resample_changed) {
766         if (resample_changed) {
767             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
768                    ist->file_index, ist->st->index,
769                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
770                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
771             ost->resample_sample_fmt  = dec->sample_fmt;
772             ost->resample_channels    = dec->channels;
773             ost->resample_sample_rate = dec->sample_rate;
774             if (ost->resample)
775                 audio_resample_close(ost->resample);
776         }
777         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
778         if (audio_sync_method <= 1 &&
779             ost->resample_sample_fmt  == enc->sample_fmt &&
780             ost->resample_channels    == enc->channels   &&
781             ost->resample_sample_rate == enc->sample_rate) {
782             ost->resample = NULL;
783             ost->audio_resample = 0;
784         } else if (ost->audio_resample) {
785             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
786                 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
787             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
788                                                    enc->sample_rate, dec->sample_rate,
789                                                    enc->sample_fmt,  dec->sample_fmt,
790                                                    16, 10, 0, 0.8);
791             if (!ost->resample) {
792                 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
793                        dec->channels, dec->sample_rate,
794                        enc->channels, enc->sample_rate);
795                 exit_program(1);
796             }
797         }
798     }
799
800 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
801     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
802         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
803         if (ost->reformat_ctx)
804             av_audio_convert_free(ost->reformat_ctx);
805         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
806                                                    dec->sample_fmt, 1, NULL, 0);
807         if (!ost->reformat_ctx) {
808             av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
809                    av_get_sample_fmt_name(dec->sample_fmt),
810                    av_get_sample_fmt_name(enc->sample_fmt));
811             exit_program(1);
812         }
813         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
814     }
815
816     if(audio_sync_method){
817         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
818                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
819         double idelta= delta*dec->sample_rate / enc->sample_rate;
820         int byte_delta= ((int)idelta)*2*dec->channels;
821
822         //FIXME resample delay
823         if(fabs(delta) > 50){
824             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
825                 if(byte_delta < 0){
826                     byte_delta= FFMAX(byte_delta, -size);
827                     size += byte_delta;
828                     buf  -= byte_delta;
829                     av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta);
830                     if(!size)
831                         return;
832                     ist->is_start=0;
833                 }else{
834                     static uint8_t *input_tmp= NULL;
835                     input_tmp= av_realloc(input_tmp, byte_delta + size);
836
837                     if(byte_delta > allocated_for_size - size){
838                         allocated_for_size= byte_delta + (int64_t)size;
839                         goto need_realloc;
840                     }
841                     ist->is_start=0;
842
843                     memset(input_tmp, 0, byte_delta);
844                     memcpy(input_tmp + byte_delta, buf, size);
845                     buf= input_tmp;
846                     size += byte_delta;
847                     av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", (int)delta);
848                 }
849             }else if(audio_sync_method>1){
850                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
851                 av_assert0(ost->audio_resample);
852                 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
853                        delta, comp, enc->sample_rate);
854 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
855                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
856             }
857         }
858     }else
859         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
860                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
861
862     if (ost->audio_resample) {
863         buftmp = audio_buf;
864         size_out = audio_resample(ost->resample,
865                                   (short *)buftmp, (short *)buf,
866                                   size / (dec->channels * isize));
867         size_out = size_out * enc->channels * osize;
868     } else {
869         buftmp = buf;
870         size_out = size;
871     }
872
873     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
874         const void *ibuf[6]= {buftmp};
875         void *obuf[6]= {audio_buf};
876         int istride[6]= {isize};
877         int ostride[6]= {osize};
878         int len= size_out/istride[0];
879         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
880             printf("av_audio_convert() failed\n");
881             if (exit_on_error)
882                 exit_program(1);
883             return;
884         }
885         buftmp = audio_buf;
886         size_out = len*osize;
887     }
888
889     /* now encode as many frames as possible */
890     if (enc->frame_size > 1) {
891         /* output resampled raw samples */
892         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
893             av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
894             exit_program(1);
895         }
896         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
897
898         frame_bytes = enc->frame_size * osize * enc->channels;
899
900         while (av_fifo_size(ost->fifo) >= frame_bytes) {
901             AVPacket pkt;
902             av_init_packet(&pkt);
903
904             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
905
906             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907
908             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
909                                        (short *)audio_buf);
910             if (ret < 0) {
911                 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
912                 exit_program(1);
913             }
914             audio_size += ret;
915             pkt.stream_index= ost->index;
916             pkt.data= audio_out;
917             pkt.size= ret;
918             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
919                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
920             pkt.flags |= AV_PKT_FLAG_KEY;
921             write_frame(s, &pkt, enc, ost->bitstream_filters);
922
923             ost->sync_opts += enc->frame_size;
924         }
925     } else {
926         AVPacket pkt;
927         av_init_packet(&pkt);
928
929         ost->sync_opts += size_out / (osize * enc->channels);
930
931         /* output a pcm frame */
932         /* determine the size of the coded buffer */
933         size_out /= osize;
934         if (coded_bps)
935             size_out = size_out*coded_bps/8;
936
937         if(size_out > audio_out_size){
938             av_log(NULL, AV_LOG_FATAL, "Internal error, buffer size too small\n");
939             exit_program(1);
940         }
941
942         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
943         ret = avcodec_encode_audio(enc, audio_out, size_out,
944                                    (short *)buftmp);
945         if (ret < 0) {
946             av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
947             exit_program(1);
948         }
949         audio_size += ret;
950         pkt.stream_index= ost->index;
951         pkt.data= audio_out;
952         pkt.size= ret;
953         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
954             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
955         pkt.flags |= AV_PKT_FLAG_KEY;
956         write_frame(s, &pkt, enc, ost->bitstream_filters);
957     }
958 }
959
960 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
961 {
962     AVCodecContext *dec;
963     AVPicture *picture2;
964     AVPicture picture_tmp;
965     uint8_t *buf = 0;
966
967     dec = ist->st->codec;
968
969     /* deinterlace : must be done before any resize */
970     if (do_deinterlace) {
971         int size;
972
973         /* create temporary picture */
974         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
975         buf = av_malloc(size);
976         if (!buf)
977             return;
978
979         picture2 = &picture_tmp;
980         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
981
982         if(avpicture_deinterlace(picture2, picture,
983                                  dec->pix_fmt, dec->width, dec->height) < 0) {
984             /* if error, do not deinterlace */
985             av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
986             av_free(buf);
987             buf = NULL;
988             picture2 = picture;
989         }
990     } else {
991         picture2 = picture;
992     }
993
994     if (picture != picture2)
995         *picture = *picture2;
996     *bufp = buf;
997 }
998
999 static void do_subtitle_out(AVFormatContext *s,
1000                             OutputStream *ost,
1001                             InputStream *ist,
1002                             AVSubtitle *sub,
1003                             int64_t pts)
1004 {
1005     static uint8_t *subtitle_out = NULL;
1006     int subtitle_out_max_size = 1024 * 1024;
1007     int subtitle_out_size, nb, i;
1008     AVCodecContext *enc;
1009     AVPacket pkt;
1010
1011     if (pts == AV_NOPTS_VALUE) {
1012         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1013         if (exit_on_error)
1014             exit_program(1);
1015         return;
1016     }
1017
1018     enc = ost->st->codec;
1019
1020     if (!subtitle_out) {
1021         subtitle_out = av_malloc(subtitle_out_max_size);
1022     }
1023
1024     /* Note: DVB subtitle need one packet to draw them and one other
1025        packet to clear them */
1026     /* XXX: signal it in the codec context ? */
1027     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1028         nb = 2;
1029     else
1030         nb = 1;
1031
1032     for(i = 0; i < nb; i++) {
1033         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1034         // start_display_time is required to be 0
1035         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1036         sub->end_display_time -= sub->start_display_time;
1037         sub->start_display_time = 0;
1038         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1039                                                     subtitle_out_max_size, sub);
1040         if (subtitle_out_size < 0) {
1041             av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1042             exit_program(1);
1043         }
1044
1045         av_init_packet(&pkt);
1046         pkt.stream_index = ost->index;
1047         pkt.data = subtitle_out;
1048         pkt.size = subtitle_out_size;
1049         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1050         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1051             /* XXX: the pts correction is handled here. Maybe handling
1052                it in the codec would be better */
1053             if (i == 0)
1054                 pkt.pts += 90 * sub->start_display_time;
1055             else
1056                 pkt.pts += 90 * sub->end_display_time;
1057         }
1058         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1059     }
1060 }
1061
1062 static int bit_buffer_size= 1024*256;
1063 static uint8_t *bit_buffer= NULL;
1064
1065 static void do_video_resample(OutputStream *ost,
1066                               InputStream *ist,
1067                               AVFrame *in_picture,
1068                               AVFrame **out_picture)
1069 {
1070     int resample_changed = 0;
1071     AVCodecContext *dec = ist->st->codec;
1072     *out_picture = in_picture;
1073
1074     resample_changed = ost->resample_width   != dec->width  ||
1075                        ost->resample_height  != dec->height ||
1076                        ost->resample_pix_fmt != dec->pix_fmt;
1077
1078     if (resample_changed) {
1079         av_log(NULL, AV_LOG_INFO,
1080                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1081                ist->file_index, ist->st->index,
1082                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1083                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1084         if(!ost->video_resample)
1085             ost->video_resample = 1;
1086     }
1087
1088 #if !CONFIG_AVFILTER
1089     if (ost->video_resample) {
1090         *out_picture = &ost->pict_tmp;
1091         if (resample_changed) {
1092             /* initialize a new scaler context */
1093             sws_freeContext(ost->img_resample_ctx);
1094             ost->img_resample_ctx = sws_getContext(
1095                 ist->st->codec->width,
1096                 ist->st->codec->height,
1097                 ist->st->codec->pix_fmt,
1098                 ost->st->codec->width,
1099                 ost->st->codec->height,
1100                 ost->st->codec->pix_fmt,
1101                 ost->sws_flags, NULL, NULL, NULL);
1102             if (ost->img_resample_ctx == NULL) {
1103                 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1104                 exit_program(1);
1105             }
1106         }
1107         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1108               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1109     }
1110 #else
1111     if (resample_changed) {
1112         avfilter_graph_free(&ost->graph);
1113         if (configure_video_filters(ist, ost)) {
1114             av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1115             exit_program(1);
1116         }
1117     }
1118 #endif
1119     if (resample_changed) {
1120         ost->resample_width   = dec->width;
1121         ost->resample_height  = dec->height;
1122         ost->resample_pix_fmt = dec->pix_fmt;
1123     }
1124 }
1125
1126
1127 static void do_video_out(AVFormatContext *s,
1128                          OutputStream *ost,
1129                          InputStream *ist,
1130                          AVFrame *in_picture,
1131                          int *frame_size, float quality)
1132 {
1133     int nb_frames, i, ret, format_video_sync;
1134     AVFrame *final_picture;
1135     AVCodecContext *enc;
1136     double sync_ipts;
1137
1138     enc = ost->st->codec;
1139
1140     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1141
1142     /* by default, we output a single frame */
1143     nb_frames = 1;
1144
1145     *frame_size = 0;
1146
1147     format_video_sync = video_sync_method;
1148     if (format_video_sync < 0)
1149         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1150
1151     if (format_video_sync) {
1152         double vdelta = sync_ipts - ost->sync_opts;
1153         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1154         if (vdelta < -1.1)
1155             nb_frames = 0;
1156         else if (format_video_sync == 2) {
1157             if(vdelta<=-0.6){
1158                 nb_frames=0;
1159             }else if(vdelta>0.6)
1160                 ost->sync_opts= lrintf(sync_ipts);
1161         }else if (vdelta > 1.1)
1162             nb_frames = lrintf(vdelta);
1163 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1164         if (nb_frames == 0){
1165             ++nb_frames_drop;
1166             av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1167         }else if (nb_frames > 1) {
1168             nb_frames_dup += nb_frames - 1;
1169             av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1);
1170         }
1171     }else
1172         ost->sync_opts= lrintf(sync_ipts);
1173
1174     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1175     if (nb_frames <= 0)
1176         return;
1177
1178     do_video_resample(ost, ist, in_picture, &final_picture);
1179
1180     /* duplicates frame if needed */
1181     for(i=0;i<nb_frames;i++) {
1182         AVPacket pkt;
1183         av_init_packet(&pkt);
1184         pkt.stream_index= ost->index;
1185
1186         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1187             /* raw pictures are written as AVPicture structure to
1188                avoid any copies. We support temporarily the older
1189                method. */
1190             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1191             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1192             pkt.data= (uint8_t *)final_picture;
1193             pkt.size=  sizeof(AVPicture);
1194             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1195             pkt.flags |= AV_PKT_FLAG_KEY;
1196
1197             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1198         } else {
1199             AVFrame big_picture;
1200
1201             big_picture= *final_picture;
1202             /* better than nothing: use input picture interlaced
1203                settings */
1204             big_picture.interlaced_frame = in_picture->interlaced_frame;
1205             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1206                 if (ost->top_field_first == -1)
1207                     big_picture.top_field_first = in_picture->top_field_first;
1208                 else
1209                     big_picture.top_field_first = !!ost->top_field_first;
1210             }
1211
1212             /* handles same_quant here. This is not correct because it may
1213                not be a global option */
1214             big_picture.quality = quality;
1215             if (!enc->me_threshold)
1216                 big_picture.pict_type = 0;
1217 //            big_picture.pts = AV_NOPTS_VALUE;
1218             big_picture.pts= ost->sync_opts;
1219 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1220 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1221             if (ost->forced_kf_index < ost->forced_kf_count &&
1222                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1223                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1224                 ost->forced_kf_index++;
1225             }
1226             ret = avcodec_encode_video(enc,
1227                                        bit_buffer, bit_buffer_size,
1228                                        &big_picture);
1229             if (ret < 0) {
1230                 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1231                 exit_program(1);
1232             }
1233
1234             if(ret>0){
1235                 pkt.data= bit_buffer;
1236                 pkt.size= ret;
1237                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1238                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1239 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1240    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1241    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1242
1243                 if(enc->coded_frame->key_frame)
1244                     pkt.flags |= AV_PKT_FLAG_KEY;
1245                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1246                 *frame_size = ret;
1247                 video_size += ret;
1248                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1249                 //        enc->frame_number-1, ret, enc->pict_type);
1250                 /* if two pass, output log */
1251                 if (ost->logfile && enc->stats_out) {
1252                     fprintf(ost->logfile, "%s", enc->stats_out);
1253                 }
1254             }
1255         }
1256         ost->sync_opts++;
1257         ost->frame_number++;
1258     }
1259 }
1260
1261 static double psnr(double d){
1262     return -10.0*log(d)/log(10.0);
1263 }
1264
1265 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1266                            int frame_size)
1267 {
1268     AVCodecContext *enc;
1269     int frame_number;
1270     double ti1, bitrate, avg_bitrate;
1271
1272     /* this is executed just the first time do_video_stats is called */
1273     if (!vstats_file) {
1274         vstats_file = fopen(vstats_filename, "w");
1275         if (!vstats_file) {
1276             perror("fopen");
1277             exit_program(1);
1278         }
1279     }
1280
1281     enc = ost->st->codec;
1282     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1283         frame_number = ost->frame_number;
1284         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1285         if (enc->flags&CODEC_FLAG_PSNR)
1286             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1287
1288         fprintf(vstats_file,"f_size= %6d ", frame_size);
1289         /* compute pts value */
1290         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1291         if (ti1 < 0.01)
1292             ti1 = 0.01;
1293
1294         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1295         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1296         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1297             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1298         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1299     }
1300 }
1301
1302 static void print_report(OutputFile *output_files,
1303                          OutputStream *ost_table, int nb_ostreams,
1304                          int is_last_report, int64_t timer_start)
1305 {
1306     char buf[1024];
1307     OutputStream *ost;
1308     AVFormatContext *oc;
1309     int64_t total_size;
1310     AVCodecContext *enc;
1311     int frame_number, vid, i;
1312     double bitrate, ti1, pts;
1313     static int64_t last_time = -1;
1314     static int qp_histogram[52];
1315
1316     if (!is_last_report) {
1317         int64_t cur_time;
1318         /* display the report every 0.5 seconds */
1319         cur_time = av_gettime();
1320         if (last_time == -1) {
1321             last_time = cur_time;
1322             return;
1323         }
1324         if ((cur_time - last_time) < 500000)
1325             return;
1326         last_time = cur_time;
1327     }
1328
1329
1330     oc = output_files[0].ctx;
1331
1332     total_size = avio_size(oc->pb);
1333     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1334         total_size= avio_tell(oc->pb);
1335
1336     buf[0] = '\0';
1337     ti1 = 1e10;
1338     vid = 0;
1339     for(i=0;i<nb_ostreams;i++) {
1340         float q = -1;
1341         ost = &ost_table[i];
1342         enc = ost->st->codec;
1343         if (!ost->st->stream_copy && enc->coded_frame)
1344             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1345         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1346             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1347         }
1348         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1349             float t = (av_gettime()-timer_start) / 1000000.0;
1350
1351             frame_number = ost->frame_number;
1352             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1353                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1354             if(is_last_report)
1355                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1356             if(qp_hist){
1357                 int j;
1358                 int qp = lrintf(q);
1359                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1360                     qp_histogram[qp]++;
1361                 for(j=0; j<32; j++)
1362                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1363             }
1364             if (enc->flags&CODEC_FLAG_PSNR){
1365                 int j;
1366                 double error, error_sum=0;
1367                 double scale, scale_sum=0;
1368                 char type[3]= {'Y','U','V'};
1369                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1370                 for(j=0; j<3; j++){
1371                     if(is_last_report){
1372                         error= enc->error[j];
1373                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1374                     }else{
1375                         error= enc->coded_frame->error[j];
1376                         scale= enc->width*enc->height*255.0*255.0;
1377                     }
1378                     if(j) scale/=4;
1379                     error_sum += error;
1380                     scale_sum += scale;
1381                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1382                 }
1383                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1384             }
1385             vid = 1;
1386         }
1387         /* compute min output value */
1388         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1389         if ((pts < ti1) && (pts > 0))
1390             ti1 = pts;
1391     }
1392     if (ti1 < 0.01)
1393         ti1 = 0.01;
1394
1395     bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1396
1397     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1398             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1399             (double)total_size / 1024, ti1, bitrate);
1400
1401     if (nb_frames_dup || nb_frames_drop)
1402         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1403                 nb_frames_dup, nb_frames_drop);
1404
1405     av_log(NULL, is_last_report ? AV_LOG_WARNING : AV_LOG_INFO, "%s    \r", buf);
1406
1407     fflush(stderr);
1408
1409     if (is_last_report) {
1410         int64_t raw= audio_size + video_size + extra_size;
1411         av_log(NULL, AV_LOG_INFO, "\n");
1412         av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1413                video_size/1024.0,
1414                audio_size/1024.0,
1415                extra_size/1024.0,
1416                100.0*(total_size - raw)/raw
1417         );
1418     }
1419 }
1420
1421 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1422 {
1423     int fill_char = 0x00;
1424     if (sample_fmt == AV_SAMPLE_FMT_U8)
1425         fill_char = 0x80;
1426     memset(buf, fill_char, size);
1427 }
1428
1429 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1430 {
1431     int i, ret;
1432
1433     for (i = 0; i < nb_ostreams; i++) {
1434         OutputStream   *ost = &ost_table[i];
1435         AVCodecContext *enc = ost->st->codec;
1436         AVFormatContext *os = output_files[ost->file_index].ctx;
1437
1438         if (!ost->encoding_needed)
1439             continue;
1440
1441         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1442             continue;
1443         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1444             continue;
1445
1446         for(;;) {
1447             AVPacket pkt;
1448             int fifo_bytes;
1449             av_init_packet(&pkt);
1450             pkt.stream_index= ost->index;
1451
1452             switch (ost->st->codec->codec_type) {
1453             case AVMEDIA_TYPE_AUDIO:
1454                 fifo_bytes = av_fifo_size(ost->fifo);
1455                 ret = 0;
1456                 /* encode any samples remaining in fifo */
1457                 if (fifo_bytes > 0) {
1458                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1459                     int fs_tmp = enc->frame_size;
1460
1461                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1462                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1463                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1464                     } else { /* pad */
1465                         int frame_bytes = enc->frame_size*osize*enc->channels;
1466                         if (allocated_audio_buf_size < frame_bytes)
1467                             exit_program(1);
1468                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1469                     }
1470
1471                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1472                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1473                                               ost->st->time_base.num, enc->sample_rate);
1474                     enc->frame_size = fs_tmp;
1475                 }
1476                 if (ret <= 0) {
1477                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1478                 }
1479                 if (ret < 0) {
1480                     av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1481                     exit_program(1);
1482                 }
1483                 audio_size += ret;
1484                 pkt.flags |= AV_PKT_FLAG_KEY;
1485                 break;
1486             case AVMEDIA_TYPE_VIDEO:
1487                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1488                 if (ret < 0) {
1489                     av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1490                     exit_program(1);
1491                 }
1492                 video_size += ret;
1493                 if(enc->coded_frame && enc->coded_frame->key_frame)
1494                     pkt.flags |= AV_PKT_FLAG_KEY;
1495                 if (ost->logfile && enc->stats_out) {
1496                     fprintf(ost->logfile, "%s", enc->stats_out);
1497                 }
1498                 break;
1499             default:
1500                 ret=-1;
1501             }
1502
1503             if (ret <= 0)
1504                 break;
1505             pkt.data = bit_buffer;
1506             pkt.size = ret;
1507             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1508                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1509             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1510         }
1511     }
1512 }
1513
1514 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1515 static int output_packet(InputStream *ist, int ist_index,
1516                          OutputStream *ost_table, int nb_ostreams,
1517                          const AVPacket *pkt)
1518 {
1519     AVFormatContext *os;
1520     OutputStream *ost;
1521     int ret = 0, i;
1522     int got_output;
1523     void *buffer_to_free = NULL;
1524     static unsigned int samples_size= 0;
1525     AVSubtitle subtitle, *subtitle_to_free;
1526     int64_t pkt_pts = AV_NOPTS_VALUE;
1527 #if CONFIG_AVFILTER
1528     int frame_available;
1529 #endif
1530     float quality;
1531
1532     AVPacket avpkt;
1533     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1534
1535     if(ist->next_pts == AV_NOPTS_VALUE)
1536         ist->next_pts= ist->pts;
1537
1538     if (pkt == NULL) {
1539         /* EOF handling */
1540         av_init_packet(&avpkt);
1541         avpkt.data = NULL;
1542         avpkt.size = 0;
1543         goto handle_eof;
1544     } else {
1545         avpkt = *pkt;
1546     }
1547
1548     if(pkt->dts != AV_NOPTS_VALUE)
1549         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1550     if(pkt->pts != AV_NOPTS_VALUE)
1551         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1552
1553     //while we have more to decode or while the decoder did output something on EOF
1554     while (avpkt.size > 0 || (!pkt && got_output)) {
1555         uint8_t *data_buf, *decoded_data_buf;
1556         int data_size, decoded_data_size;
1557         AVFrame *decoded_frame, *filtered_frame;
1558     handle_eof:
1559         ist->pts= ist->next_pts;
1560
1561         if(avpkt.size && avpkt.size != pkt->size)
1562             av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1563                    "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1564             ist->showed_multi_packet_warning=1;
1565
1566         /* decode the packet if needed */
1567         decoded_frame    = filtered_frame = NULL;
1568         decoded_data_buf = NULL; /* fail safe */
1569         decoded_data_size= 0;
1570         data_buf  = avpkt.data;
1571         data_size = avpkt.size;
1572         subtitle_to_free = NULL;
1573         if (ist->decoding_needed) {
1574             switch(ist->st->codec->codec_type) {
1575             case AVMEDIA_TYPE_AUDIO:{
1576                 if(pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1577                     samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE);
1578                     av_free(samples);
1579                     samples= av_malloc(samples_size);
1580                 }
1581                 decoded_data_size= samples_size;
1582                     /* XXX: could avoid copy if PCM 16 bits with same
1583                        endianness as CPU */
1584                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1585                                             &avpkt);
1586                 if (ret < 0)
1587                     return ret;
1588                 avpkt.data += ret;
1589                 avpkt.size -= ret;
1590                 data_size   = ret;
1591                 got_output  = decoded_data_size > 0;
1592                 /* Some bug in mpeg audio decoder gives */
1593                 /* decoded_data_size < 0, it seems they are overflows */
1594                 if (!got_output) {
1595                     /* no audio frame */
1596                     continue;
1597                 }
1598                 decoded_data_buf = (uint8_t *)samples;
1599                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1600                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1601                 break;}
1602             case AVMEDIA_TYPE_VIDEO:
1603                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1604                     if (!(decoded_frame = avcodec_alloc_frame()))
1605                         return AVERROR(ENOMEM);
1606                     avpkt.pts = pkt_pts;
1607                     avpkt.dts = ist->pts;
1608                     pkt_pts = AV_NOPTS_VALUE;
1609
1610                     ret = avcodec_decode_video2(ist->st->codec,
1611                                                 decoded_frame, &got_output, &avpkt);
1612                     quality = same_quant ? decoded_frame->quality : 0;
1613                     if (ret < 0)
1614                         goto fail;
1615                     if (!got_output) {
1616                         /* no picture yet */
1617                         av_freep(&decoded_frame);
1618                         goto discard_packet;
1619                     }
1620                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1621                                                                  decoded_frame->pkt_dts);
1622                     if (ist->st->codec->time_base.num != 0) {
1623                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1624                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1625                                           ist->st->codec->time_base.num * ticks) /
1626                             ist->st->codec->time_base.den;
1627                     }
1628                     avpkt.size = 0;
1629                     buffer_to_free = NULL;
1630                     pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1631                     break;
1632             case AVMEDIA_TYPE_SUBTITLE:
1633                 ret = avcodec_decode_subtitle2(ist->st->codec,
1634                                                &subtitle, &got_output, &avpkt);
1635                 if (ret < 0)
1636                     return ret;
1637                 if (!got_output) {
1638                     goto discard_packet;
1639                 }
1640                 subtitle_to_free = &subtitle;
1641                 avpkt.size = 0;
1642                 break;
1643             default:
1644                 return -1;
1645             }
1646         } else {
1647             switch(ist->st->codec->codec_type) {
1648             case AVMEDIA_TYPE_AUDIO:
1649                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1650                     ist->st->codec->sample_rate;
1651                 break;
1652             case AVMEDIA_TYPE_VIDEO:
1653                 if (ist->st->codec->time_base.num != 0) {
1654                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1655                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1656                                       ist->st->codec->time_base.num * ticks) /
1657                         ist->st->codec->time_base.den;
1658                 }
1659                 break;
1660             }
1661             avpkt.size = 0;
1662         }
1663
1664         // preprocess audio (volume)
1665         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1666             if (audio_volume != 256) {
1667                 switch (ist->st->codec->sample_fmt) {
1668                 case AV_SAMPLE_FMT_U8:
1669                 {
1670                     uint8_t *volp = samples;
1671                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1672                         int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1673                         *volp++ = av_clip_uint8(v);
1674                     }
1675                     break;
1676                 }
1677                 case AV_SAMPLE_FMT_S16:
1678                 {
1679                     int16_t *volp = samples;
1680                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1681                         int v = ((*volp) * audio_volume + 128) >> 8;
1682                         *volp++ = av_clip_int16(v);
1683                     }
1684                     break;
1685                 }
1686                 case AV_SAMPLE_FMT_S32:
1687                 {
1688                     int32_t *volp = samples;
1689                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1690                         int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1691                         *volp++ = av_clipl_int32(v);
1692                     }
1693                     break;
1694                 }
1695                 case AV_SAMPLE_FMT_FLT:
1696                 {
1697                     float *volp = samples;
1698                     float scale = audio_volume / 256.f;
1699                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1700                         *volp++ *= scale;
1701                     }
1702                     break;
1703                 }
1704                 case AV_SAMPLE_FMT_DBL:
1705                 {
1706                     double *volp = samples;
1707                     double scale = audio_volume / 256.;
1708                     for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1709                         *volp++ *= scale;
1710                     }
1711                     break;
1712                 }
1713                 default:
1714                     av_log(NULL, AV_LOG_FATAL,
1715                            "Audio volume adjustment on sample format %s is not supported.\n",
1716                            av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1717                     exit_program(1);
1718                 }
1719             }
1720         }
1721
1722         /* frame rate emulation */
1723         if (input_files[ist->file_index].rate_emu) {
1724             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1725             int64_t now = av_gettime() - ist->start;
1726             if (pts > now)
1727                 usleep(pts - now);
1728         }
1729         /* if output time reached then transcode raw format,
1730            encode packets and output them */
1731         for (i = 0; i < nb_ostreams; i++) {
1732             OutputFile *of = &output_files[ost_table[i].file_index];
1733             int frame_size;
1734
1735             ost = &ost_table[i];
1736             if (ost->source_index != ist_index)
1737                 continue;
1738
1739             if (of->start_time && ist->pts < of->start_time)
1740                 continue;
1741
1742             if (of->recording_time != INT64_MAX &&
1743                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1744                               (AVRational){1, 1000000}) >= 0) {
1745                 ost->is_past_recording_time = 1;
1746                 continue;
1747             }
1748
1749 #if CONFIG_AVFILTER
1750             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1751                 ost->input_video_filter) {
1752                 AVRational sar;
1753                 if (ist->st->sample_aspect_ratio.num)
1754                     sar = ist->st->sample_aspect_ratio;
1755                 else
1756                     sar = ist->st->codec->sample_aspect_ratio;
1757                 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, ist->pts, sar);
1758                 if (!(filtered_frame = avcodec_alloc_frame())) {
1759                     ret = AVERROR(ENOMEM);
1760                     goto fail;
1761                 }
1762             }
1763             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1764                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1765             while (frame_available) {
1766                 AVRational ist_pts_tb;
1767                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1768                     get_filtered_video_frame(ost->output_video_filter, filtered_frame, &ost->picref, &ist_pts_tb);
1769                 if (ost->picref)
1770                     ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1771 #else
1772                 filtered_frame = decoded_frame;
1773 #endif
1774                 os = output_files[ost->file_index].ctx;
1775
1776                 /* set the input output pts pairs */
1777                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1778
1779                 if (ost->encoding_needed) {
1780                     av_assert0(ist->decoding_needed);
1781                     switch(ost->st->codec->codec_type) {
1782                     case AVMEDIA_TYPE_AUDIO:
1783                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1784                         break;
1785                     case AVMEDIA_TYPE_VIDEO:
1786 #if CONFIG_AVFILTER
1787                         if (ost->picref->video && !ost->frame_aspect_ratio)
1788                             ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1789 #endif
1790                         do_video_out(os, ost, ist, filtered_frame, &frame_size,
1791                                      same_quant ? quality : ost->st->codec->global_quality);
1792                         if (vstats_filename && frame_size)
1793                             do_video_stats(os, ost, frame_size);
1794                         break;
1795                     case AVMEDIA_TYPE_SUBTITLE:
1796                         do_subtitle_out(os, ost, ist, &subtitle,
1797                                         pkt->pts);
1798                         break;
1799                     default:
1800                         abort();
1801                     }
1802                 } else {
1803                     AVPacket opkt;
1804                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1805
1806                     av_init_packet(&opkt);
1807
1808                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1809 #if !CONFIG_AVFILTER
1810                         continue;
1811 #else
1812                         goto cont;
1813 #endif
1814
1815                     /* no reencoding needed : output the packet directly */
1816                     /* force the input stream PTS */
1817
1818                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1819                         audio_size += data_size;
1820                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1821                         video_size += data_size;
1822                         ost->sync_opts++;
1823                     }
1824
1825                     opkt.stream_index= ost->index;
1826                     if(pkt->pts != AV_NOPTS_VALUE)
1827                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1828                     else
1829                         opkt.pts= AV_NOPTS_VALUE;
1830
1831                     if (pkt->dts == AV_NOPTS_VALUE)
1832                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1833                     else
1834                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1835                     opkt.dts -= ost_tb_start_time;
1836
1837                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1838                     opkt.flags= pkt->flags;
1839
1840                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1841                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1842                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1843                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1844                        ) {
1845                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1846                             opkt.destruct= av_destruct_packet;
1847                     } else {
1848                         opkt.data = data_buf;
1849                         opkt.size = data_size;
1850                     }
1851
1852                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1853                     ost->st->codec->frame_number++;
1854                     ost->frame_number++;
1855                     av_free_packet(&opkt);
1856                 }
1857 #if CONFIG_AVFILTER
1858                 cont:
1859                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1860                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1861                 if (ost->picref)
1862                     avfilter_unref_buffer(ost->picref);
1863             }
1864             av_freep(&filtered_frame);
1865 #endif
1866             }
1867
1868 fail:
1869         av_free(buffer_to_free);
1870         /* XXX: allocate the subtitles in the codec ? */
1871         if (subtitle_to_free) {
1872             avsubtitle_free(subtitle_to_free);
1873             subtitle_to_free = NULL;
1874         }
1875         av_freep(&decoded_frame);
1876         if (ret < 0)
1877             return ret;
1878     }
1879  discard_packet:
1880
1881     return 0;
1882 }
1883
1884 static void print_sdp(OutputFile *output_files, int n)
1885 {
1886     char sdp[2048];
1887     int i;
1888     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1889
1890     if (!avc)
1891         exit_program(1);
1892     for (i = 0; i < n; i++)
1893         avc[i] = output_files[i].ctx;
1894
1895     av_sdp_create(avc, n, sdp, sizeof(sdp));
1896     printf("SDP:\n%s\n", sdp);
1897     fflush(stdout);
1898     av_freep(&avc);
1899 }
1900
1901 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1902                              char *error, int error_len)
1903 {
1904     int i;
1905     InputStream *ist = &input_streams[ist_index];
1906     if (ist->decoding_needed) {
1907         AVCodec *codec = ist->dec;
1908         if (!codec) {
1909             snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1910                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1911             return AVERROR(EINVAL);
1912         }
1913
1914         /* update requested sample format for the decoder based on the
1915            corresponding encoder sample format */
1916         for (i = 0; i < nb_output_streams; i++) {
1917             OutputStream *ost = &output_streams[i];
1918             if (ost->source_index == ist_index) {
1919                 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1920                 break;
1921             }
1922         }
1923
1924         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1925             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1926                     ist->file_index, ist->st->index);
1927             return AVERROR(EINVAL);
1928         }
1929         assert_codec_experimental(ist->st->codec, 0);
1930         assert_avoptions(ist->opts);
1931     }
1932
1933     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1934     ist->next_pts = AV_NOPTS_VALUE;
1935     init_pts_correction(&ist->pts_ctx);
1936     ist->is_start = 1;
1937
1938     return 0;
1939 }
1940
1941 static int transcode_init(OutputFile *output_files,
1942                           int nb_output_files,
1943                           InputFile *input_files,
1944                           int nb_input_files)
1945 {
1946     int ret = 0, i, j, k;
1947     AVFormatContext *os;
1948     AVCodecContext *codec, *icodec;
1949     OutputStream *ost;
1950     InputStream *ist;
1951     char error[1024];
1952     int want_sdp = 1;
1953
1954     /* init framerate emulation */
1955     for (i = 0; i < nb_input_files; i++) {
1956         InputFile *ifile = &input_files[i];
1957         if (ifile->rate_emu)
1958             for (j = 0; j < ifile->nb_streams; j++)
1959                 input_streams[j + ifile->ist_index].start = av_gettime();
1960     }
1961
1962     /* output stream init */
1963     for(i=0;i<nb_output_files;i++) {
1964         os = output_files[i].ctx;
1965         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1966             av_dump_format(os, i, os->filename, 1);
1967             av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1968             return AVERROR(EINVAL);
1969         }
1970     }
1971
1972     /* for each output stream, we compute the right encoding parameters */
1973     for (i = 0; i < nb_output_streams; i++) {
1974         ost = &output_streams[i];
1975         os = output_files[ost->file_index].ctx;
1976         ist = &input_streams[ost->source_index];
1977
1978         codec = ost->st->codec;
1979         icodec = ist->st->codec;
1980
1981         ost->st->disposition = ist->st->disposition;
1982         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1983         codec->chroma_sample_location = icodec->chroma_sample_location;
1984
1985         if (ost->st->stream_copy) {
1986             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1987
1988             if (extra_size > INT_MAX) {
1989                 return AVERROR(EINVAL);
1990             }
1991
1992             /* if stream_copy is selected, no need to decode or encode */
1993             codec->codec_id = icodec->codec_id;
1994             codec->codec_type = icodec->codec_type;
1995
1996             if(!codec->codec_tag){
1997                 if(   !os->oformat->codec_tag
1998                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1999                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2000                     codec->codec_tag = icodec->codec_tag;
2001             }
2002
2003             codec->bit_rate = icodec->bit_rate;
2004             codec->rc_max_rate    = icodec->rc_max_rate;
2005             codec->rc_buffer_size = icodec->rc_buffer_size;
2006             codec->extradata= av_mallocz(extra_size);
2007             if (!codec->extradata) {
2008                 return AVERROR(ENOMEM);
2009             }
2010             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2011             codec->extradata_size= icodec->extradata_size;
2012             if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2013                 codec->time_base = icodec->time_base;
2014                 codec->time_base.num *= icodec->ticks_per_frame;
2015                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2016                           codec->time_base.num, codec->time_base.den, INT_MAX);
2017             }else
2018                 codec->time_base = ist->st->time_base;
2019             switch(codec->codec_type) {
2020             case AVMEDIA_TYPE_AUDIO:
2021                 if(audio_volume != 256) {
2022                     av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2023                     exit_program(1);
2024                 }
2025                 codec->channel_layout = icodec->channel_layout;
2026                 codec->sample_rate = icodec->sample_rate;
2027                 codec->channels = icodec->channels;
2028                 codec->frame_size = icodec->frame_size;
2029                 codec->audio_service_type = icodec->audio_service_type;
2030                 codec->block_align= icodec->block_align;
2031                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2032                     codec->block_align= 0;
2033                 if(codec->codec_id == CODEC_ID_AC3)
2034                     codec->block_align= 0;
2035                 break;
2036             case AVMEDIA_TYPE_VIDEO:
2037                 codec->pix_fmt = icodec->pix_fmt;
2038                 codec->width = icodec->width;
2039                 codec->height = icodec->height;
2040                 codec->has_b_frames = icodec->has_b_frames;
2041                 if (!codec->sample_aspect_ratio.num) {
2042                     codec->sample_aspect_ratio =
2043                     ost->st->sample_aspect_ratio =
2044                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2045                         ist->st->codec->sample_aspect_ratio.num ?
2046                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2047                 }
2048                 break;
2049             case AVMEDIA_TYPE_SUBTITLE:
2050                 codec->width = icodec->width;
2051                 codec->height = icodec->height;
2052                 break;
2053             case AVMEDIA_TYPE_DATA:
2054             case AVMEDIA_TYPE_ATTACHMENT:
2055                 break;
2056             default:
2057                 abort();
2058             }
2059         } else {
2060             if (!ost->enc)
2061                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2062             ist->decoding_needed = 1;
2063             ost->encoding_needed = 1;
2064             switch(codec->codec_type) {
2065             case AVMEDIA_TYPE_AUDIO:
2066                 ost->fifo= av_fifo_alloc(1024);
2067                 if (!ost->fifo) {
2068                     return AVERROR(ENOMEM);
2069                 }
2070                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2071                 if (!codec->sample_rate) {
2072                     codec->sample_rate = icodec->sample_rate;
2073                     if (icodec->lowres)
2074                         codec->sample_rate >>= icodec->lowres;
2075                 }
2076                 choose_sample_rate(ost->st, ost->enc);
2077                 codec->time_base = (AVRational){1, codec->sample_rate};
2078                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2079                     codec->sample_fmt = icodec->sample_fmt;
2080                 choose_sample_fmt(ost->st, ost->enc);
2081                 if (!codec->channels)
2082                     codec->channels = icodec->channels;
2083                 codec->channel_layout = icodec->channel_layout;
2084                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2085                     codec->channel_layout = 0;
2086                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2087                 icodec->request_channels = codec->channels;
2088                 ost->resample_sample_fmt  = icodec->sample_fmt;
2089                 ost->resample_sample_rate = icodec->sample_rate;
2090                 ost->resample_channels    = icodec->channels;
2091                 break;
2092             case AVMEDIA_TYPE_VIDEO:
2093                 if (codec->pix_fmt == PIX_FMT_NONE)
2094                     codec->pix_fmt = icodec->pix_fmt;
2095                 choose_pixel_fmt(ost->st, ost->enc);
2096
2097                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2098                     av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2099                     exit_program(1);
2100                 }
2101
2102                 if (!codec->width || !codec->height) {
2103                     codec->width  = icodec->width;
2104                     codec->height = icodec->height;
2105                 }
2106
2107                 ost->video_resample = codec->width   != icodec->width  ||
2108                                       codec->height  != icodec->height ||
2109                                       codec->pix_fmt != icodec->pix_fmt;
2110                 if (ost->video_resample) {
2111 #if !CONFIG_AVFILTER
2112                     avcodec_get_frame_defaults(&ost->pict_tmp);
2113                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2114                                        codec->width, codec->height)) {
2115                         av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
2116                         exit_program(1);
2117                     }
2118                     ost->img_resample_ctx = sws_getContext(
2119                         icodec->width,
2120                         icodec->height,
2121                         icodec->pix_fmt,
2122                         codec->width,
2123                         codec->height,
2124                         codec->pix_fmt,
2125                         ost->sws_flags, NULL, NULL, NULL);
2126                     if (ost->img_resample_ctx == NULL) {
2127                         av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
2128                         exit_program(1);
2129                     }
2130 #endif
2131                     codec->bits_per_raw_sample= 0;
2132                 }
2133
2134                 ost->resample_height = icodec->height;
2135                 ost->resample_width  = icodec->width;
2136                 ost->resample_pix_fmt= icodec->pix_fmt;
2137
2138                 if (!ost->frame_rate.num)
2139                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2140                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2141                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2142                     ost->frame_rate = ost->enc->supported_framerates[idx];
2143                 }
2144                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2145
2146 #if CONFIG_AVFILTER
2147                 if (configure_video_filters(ist, ost)) {
2148                     av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2149                     exit(1);
2150                 }
2151 #endif
2152                 break;
2153             case AVMEDIA_TYPE_SUBTITLE:
2154                 break;
2155             default:
2156                 abort();
2157                 break;
2158             }
2159             /* two pass mode */
2160             if (ost->encoding_needed &&
2161                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2162                 char logfilename[1024];
2163                 FILE *f;
2164
2165                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2166                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2167                          i);
2168                 if (codec->flags & CODEC_FLAG_PASS1) {
2169                     f = fopen(logfilename, "wb");
2170                     if (!f) {
2171                         av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2172                                logfilename, strerror(errno));
2173                         exit_program(1);
2174                     }
2175                     ost->logfile = f;
2176                 } else {
2177                     char  *logbuffer;
2178                     size_t logbuffer_size;
2179                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2180                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2181                                logfilename);
2182                         exit_program(1);
2183                     }
2184                     codec->stats_in = logbuffer;
2185                 }
2186             }
2187         }
2188         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2189             int size= codec->width * codec->height;
2190             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2191         }
2192     }
2193
2194     if (!bit_buffer)
2195         bit_buffer = av_malloc(bit_buffer_size);
2196     if (!bit_buffer) {
2197         av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
2198                bit_buffer_size);
2199         return AVERROR(ENOMEM);
2200     }
2201
2202     /* open each encoder */
2203     for (i = 0; i < nb_output_streams; i++) {
2204         ost = &output_streams[i];
2205         if (ost->encoding_needed) {
2206             AVCodec *codec = ost->enc;
2207             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2208             if (!codec) {
2209                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2210                          ost->st->codec->codec_id, ost->file_index, ost->index);
2211                 ret = AVERROR(EINVAL);
2212                 goto dump_format;
2213             }
2214             if (dec->subtitle_header) {
2215                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2216                 if (!ost->st->codec->subtitle_header) {
2217                     ret = AVERROR(ENOMEM);
2218                     goto dump_format;
2219                 }
2220                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2221                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2222             }
2223             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2224                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2225                         ost->file_index, ost->index);
2226                 ret = AVERROR(EINVAL);
2227                 goto dump_format;
2228             }
2229             assert_codec_experimental(ost->st->codec, 1);
2230             assert_avoptions(ost->opts);
2231             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2232                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2233                                              "It takes bits/s as argument, not kbits/s\n");
2234             extra_size += ost->st->codec->extradata_size;
2235
2236             if (ost->st->codec->me_threshold)
2237                 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2238         }
2239     }
2240
2241     /* init input streams */
2242     for (i = 0; i < nb_input_streams; i++)
2243         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2244             goto dump_format;
2245
2246     /* discard unused programs */
2247     for (i = 0; i < nb_input_files; i++) {
2248         InputFile *ifile = &input_files[i];
2249         for (j = 0; j < ifile->ctx->nb_programs; j++) {
2250             AVProgram *p = ifile->ctx->programs[j];
2251             int discard  = AVDISCARD_ALL;
2252
2253             for (k = 0; k < p->nb_stream_indexes; k++)
2254                 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2255                     discard = AVDISCARD_DEFAULT;
2256                     break;
2257                 }
2258             p->discard = discard;
2259         }
2260     }
2261
2262     /* open files and write file headers */
2263     for (i = 0; i < nb_output_files; i++) {
2264         os = output_files[i].ctx;
2265         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2266             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2267             ret = AVERROR(EINVAL);
2268             goto dump_format;
2269         }
2270         assert_avoptions(output_files[i].opts);
2271         if (strcmp(os->oformat->name, "rtp")) {
2272             want_sdp = 0;
2273         }
2274     }
2275
2276  dump_format:
2277     /* dump the file output parameters - cannot be done before in case
2278        of stream copy */
2279     for(i=0;i<nb_output_files;i++) {
2280         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2281     }
2282
2283     /* dump the stream mapping */
2284     av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2285     for (i = 0; i < nb_output_streams; i++) {
2286         ost = &output_streams[i];
2287         av_log(NULL, AV_LOG_INFO, "  Stream #%d.%d -> #%d.%d",
2288                input_streams[ost->source_index].file_index,
2289                input_streams[ost->source_index].st->index,
2290                ost->file_index,
2291                ost->index);
2292         if (ost->sync_ist != &input_streams[ost->source_index])
2293             av_log(NULL, AV_LOG_INFO, " [sync #%d.%d]",
2294                    ost->sync_ist->file_index,
2295                    ost->sync_ist->st->index);
2296         if (ost->st->stream_copy)
2297             av_log(NULL, AV_LOG_INFO, " (copy)");
2298         else
2299             av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2300                    input_streams[ost->source_index].dec->name : "?",
2301                    ost->enc ? ost->enc->name : "?");
2302         av_log(NULL, AV_LOG_INFO, "\n");
2303     }
2304
2305     if (ret) {
2306         av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2307         return ret;
2308     }
2309
2310     if (want_sdp) {
2311         print_sdp(output_files, nb_output_files);
2312     }
2313
2314     return 0;
2315 }
2316
2317 /*
2318  * The following code is the main loop of the file converter
2319  */
2320 static int transcode(OutputFile *output_files,
2321                      int nb_output_files,
2322                      InputFile *input_files,
2323                      int nb_input_files)
2324 {
2325     int ret, i;
2326     AVFormatContext *is, *os;
2327     OutputStream *ost;
2328     InputStream *ist;
2329     uint8_t *no_packet;
2330     int no_packet_count=0;
2331     int64_t timer_start;
2332
2333     if (!(no_packet = av_mallocz(nb_input_files)))
2334         exit_program(1);
2335
2336     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2337     if (ret < 0)
2338         goto fail;
2339
2340     av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2341     term_init();
2342
2343     timer_start = av_gettime();
2344
2345     for(; received_sigterm == 0;) {
2346         int file_index, ist_index;
2347         AVPacket pkt;
2348         int64_t ipts_min;
2349         double opts_min;
2350
2351         ipts_min = INT64_MAX;
2352         opts_min= 1e100;
2353
2354         /* select the stream that we must read now by looking at the
2355            smallest output pts */
2356         file_index = -1;
2357         for (i = 0; i < nb_output_streams; i++) {
2358             OutputFile *of;
2359             int64_t ipts;
2360             double  opts;
2361             ost = &output_streams[i];
2362             of = &output_files[ost->file_index];
2363             os = output_files[ost->file_index].ctx;
2364             ist = &input_streams[ost->source_index];
2365             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2366                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2367                 continue;
2368             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2369             ipts = ist->pts;
2370             if (!input_files[ist->file_index].eof_reached){
2371                 if(ipts < ipts_min) {
2372                     ipts_min = ipts;
2373                     if(input_sync ) file_index = ist->file_index;
2374                 }
2375                 if(opts < opts_min) {
2376                     opts_min = opts;
2377                     if(!input_sync) file_index = ist->file_index;
2378                 }
2379             }
2380             if (ost->frame_number >= ost->max_frames) {
2381                 int j;
2382                 for (j = 0; j < of->ctx->nb_streams; j++)
2383                     output_streams[of->ost_index + j].is_past_recording_time = 1;
2384                 continue;
2385             }
2386         }
2387         /* if none, if is finished */
2388         if (file_index < 0) {
2389             if(no_packet_count){
2390                 no_packet_count=0;
2391                 memset(no_packet, 0, nb_input_files);
2392                 usleep(10000);
2393                 continue;
2394             }
2395             break;
2396         }
2397
2398         /* read a frame from it and output it in the fifo */
2399         is = input_files[file_index].ctx;
2400         ret= av_read_frame(is, &pkt);
2401         if(ret == AVERROR(EAGAIN)){
2402             no_packet[file_index]=1;
2403             no_packet_count++;
2404             continue;
2405         }
2406         if (ret < 0) {
2407             input_files[file_index].eof_reached = 1;
2408             if (opt_shortest)
2409                 break;
2410             else
2411                 continue;
2412         }
2413
2414         no_packet_count=0;
2415         memset(no_packet, 0, nb_input_files);
2416
2417         if (do_pkt_dump) {
2418             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2419                              is->streams[pkt.stream_index]);
2420         }
2421         /* the following test is needed in case new streams appear
2422            dynamically in stream : we ignore them */
2423         if (pkt.stream_index >= input_files[file_index].nb_streams)
2424             goto discard_packet;
2425         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2426         ist = &input_streams[ist_index];
2427         if (ist->discard)
2428             goto discard_packet;
2429
2430         if (pkt.dts != AV_NOPTS_VALUE)
2431             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2432         if (pkt.pts != AV_NOPTS_VALUE)
2433             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2434
2435         if(pkt.pts != AV_NOPTS_VALUE)
2436             pkt.pts *= ist->ts_scale;
2437         if(pkt.dts != AV_NOPTS_VALUE)
2438             pkt.dts *= ist->ts_scale;
2439
2440 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2441         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2442             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2443             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2444             int64_t delta= pkt_dts - ist->next_pts;
2445             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2446                 input_files[ist->file_index].ts_offset -= delta;
2447                 av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2448                        delta, input_files[ist->file_index].ts_offset);
2449                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2450                 if(pkt.pts != AV_NOPTS_VALUE)
2451                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2452             }
2453         }
2454
2455         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2456         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2457
2458             av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d.%d\n",
2459                    ist->file_index, ist->st->index);
2460             if (exit_on_error)
2461                 exit_program(1);
2462             av_free_packet(&pkt);
2463             continue;
2464         }
2465
2466     discard_packet:
2467         av_free_packet(&pkt);
2468
2469         /* dump report by using the output first video and audio streams */
2470         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2471     }
2472
2473     /* at the end of stream, we must flush the decoder buffers */
2474     for (i = 0; i < nb_input_streams; i++) {
2475         ist = &input_streams[i];
2476         if (ist->decoding_needed) {
2477             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2478         }
2479     }
2480     flush_encoders(output_streams, nb_output_streams);
2481
2482     term_exit();
2483
2484     /* write the trailer if needed and close file */
2485     for(i=0;i<nb_output_files;i++) {
2486         os = output_files[i].ctx;
2487         av_write_trailer(os);
2488     }
2489
2490     /* dump report by using the first video and audio streams */
2491     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2492
2493     /* close each encoder */
2494     for (i = 0; i < nb_output_streams; i++) {
2495         ost = &output_streams[i];
2496         if (ost->encoding_needed) {
2497             av_freep(&ost->st->codec->stats_in);
2498             avcodec_close(ost->st->codec);
2499         }
2500 #if CONFIG_AVFILTER
2501         avfilter_graph_free(&ost->graph);
2502 #endif
2503     }
2504
2505     /* close each decoder */
2506     for (i = 0; i < nb_input_streams; i++) {
2507         ist = &input_streams[i];
2508         if (ist->decoding_needed) {
2509             avcodec_close(ist->st->codec);
2510         }
2511     }
2512
2513     /* finished ! */
2514     ret = 0;
2515
2516  fail:
2517     av_freep(&bit_buffer);
2518     av_freep(&no_packet);
2519
2520     if (output_streams) {
2521         for (i = 0; i < nb_output_streams; i++) {
2522             ost = &output_streams[i];
2523             if (ost) {
2524                 if (ost->st->stream_copy)
2525                     av_freep(&ost->st->codec->extradata);
2526                 if (ost->logfile) {
2527                     fclose(ost->logfile);
2528                     ost->logfile = NULL;
2529                 }
2530                 av_fifo_free(ost->fifo); /* works even if fifo is not
2531                                              initialized but set to zero */
2532                 av_freep(&ost->st->codec->subtitle_header);
2533                 av_free(ost->pict_tmp.data[0]);
2534                 av_free(ost->forced_kf_pts);
2535                 if (ost->video_resample)
2536                     sws_freeContext(ost->img_resample_ctx);
2537                 if (ost->resample)
2538                     audio_resample_close(ost->resample);
2539                 if (ost->reformat_ctx)
2540                     av_audio_convert_free(ost->reformat_ctx);
2541                 av_dict_free(&ost->opts);
2542             }
2543         }
2544     }
2545     return ret;
2546 }
2547
2548 static int opt_verbose(const char *opt, const char *arg)
2549 {
2550     av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -loglevel\n", opt);
2551     return 0;
2552 }
2553
2554 static double parse_frame_aspect_ratio(const char *arg)
2555 {
2556     int x = 0, y = 0;
2557     double ar = 0;
2558     const char *p;
2559     char *end;
2560
2561     p = strchr(arg, ':');
2562     if (p) {
2563         x = strtol(arg, &end, 10);
2564         if (end == p)
2565             y = strtol(end+1, &end, 10);
2566         if (x > 0 && y > 0)
2567             ar = (double)x / (double)y;
2568     } else
2569         ar = strtod(arg, NULL);
2570
2571     if (!ar) {
2572         av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2573         exit_program(1);
2574     }
2575     return ar;
2576 }
2577
2578 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2579 {
2580     return parse_option(o, "codec:a", arg, options);
2581 }
2582
2583 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2584 {
2585     return parse_option(o, "codec:v", arg, options);
2586 }
2587
2588 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2589 {
2590     return parse_option(o, "codec:s", arg, options);
2591 }
2592
2593 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2594 {
2595     return parse_option(o, "codec:d", arg, options);
2596 }
2597
2598 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2599 {
2600     StreamMap *m = NULL;
2601     int i, negative = 0, file_idx;
2602     int sync_file_idx = -1, sync_stream_idx;
2603     char *p, *sync;
2604     char *map;
2605
2606     if (*arg == '-') {
2607         negative = 1;
2608         arg++;
2609     }
2610     map = av_strdup(arg);
2611
2612     /* parse sync stream first, just pick first matching stream */
2613     if (sync = strchr(map, ',')) {
2614         *sync = 0;
2615         sync_file_idx = strtol(sync + 1, &sync, 0);
2616         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2617             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2618             exit_program(1);
2619         }
2620         if (*sync)
2621             sync++;
2622         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2623             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2624                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2625                 sync_stream_idx = i;
2626                 break;
2627             }
2628         if (i == input_files[sync_file_idx].nb_streams) {
2629             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2630                                        "match any streams.\n", arg);
2631             exit_program(1);
2632         }
2633     }
2634
2635
2636     file_idx = strtol(map, &p, 0);
2637     if (file_idx >= nb_input_files || file_idx < 0) {
2638         av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2639         exit_program(1);
2640     }
2641     if (negative)
2642         /* disable some already defined maps */
2643         for (i = 0; i < o->nb_stream_maps; i++) {
2644             m = &o->stream_maps[i];
2645             if (check_stream_specifier(input_files[m->file_index].ctx,
2646                                        input_files[m->file_index].ctx->streams[m->stream_index],
2647                                        *p == ':' ? p + 1 : p) > 0)
2648                 m->disabled = 1;
2649         }
2650     else
2651         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2652             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2653                         *p == ':' ? p + 1 : p) <= 0)
2654                 continue;
2655             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2656                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2657             m = &o->stream_maps[o->nb_stream_maps - 1];
2658
2659             m->file_index   = file_idx;
2660             m->stream_index = i;
2661
2662             if (sync_file_idx >= 0) {
2663                 m->sync_file_index   = sync_file_idx;
2664                 m->sync_stream_index = sync_stream_idx;
2665             } else {
2666                 m->sync_file_index   = file_idx;
2667                 m->sync_stream_index = i;
2668             }
2669         }
2670
2671     if (!m) {
2672         av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2673         exit_program(1);
2674     }
2675
2676     av_freep(&map);
2677     return 0;
2678 }
2679
2680 static void parse_meta_type(char *arg, char *type, int *index)
2681 {
2682     if (*arg) {
2683         *type = *arg;
2684         switch (*arg) {
2685         case 'g':
2686             break;
2687         case 's':
2688         case 'c':
2689         case 'p':
2690             if (*(++arg) == ':')
2691                 *index = strtol(++arg, NULL, 0);
2692             break;
2693         default:
2694             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2695             exit_program(1);
2696         }
2697     } else
2698         *type = 'g';
2699 }
2700
2701 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2702 {
2703     MetadataMap *m, *m1;
2704     char *p;
2705
2706     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2707                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2708
2709     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2710     m->file = strtol(arg, &p, 0);
2711     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2712
2713     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2714     if (p = strchr(opt, ':'))
2715         parse_meta_type(p + 1, &m1->type, &m1->index);
2716     else
2717         m1->type = 'g';
2718
2719     if (m->type == 'g' || m1->type == 'g')
2720         o->metadata_global_manual = 1;
2721     if (m->type == 's' || m1->type == 's')
2722         o->metadata_streams_manual = 1;
2723     if (m->type == 'c' || m1->type == 'c')
2724         o->metadata_chapters_manual = 1;
2725
2726     return 0;
2727 }
2728
2729 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2730 {
2731     const char *codec_string = encoder ? "encoder" : "decoder";
2732     AVCodec *codec;
2733
2734     if(!name)
2735         return CODEC_ID_NONE;
2736     codec = encoder ?
2737         avcodec_find_encoder_by_name(name) :
2738         avcodec_find_decoder_by_name(name);
2739     if(!codec) {
2740         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
2741         exit_program(1);
2742     }
2743     if(codec->type != type) {
2744         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
2745         exit_program(1);
2746     }
2747     return codec->id;
2748 }
2749
2750 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2751 {
2752     char *codec_name = NULL;
2753
2754     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2755
2756     if (!codec_name) {
2757         if (s->oformat) {
2758             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2759             return avcodec_find_encoder(st->codec->codec_id);
2760         }
2761     } else if (!strcmp(codec_name, "copy"))
2762         st->stream_copy = 1;
2763     else {
2764         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2765         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2766                             avcodec_find_decoder_by_name(codec_name);
2767     }
2768
2769     return NULL;
2770 }
2771
2772 /**
2773  * Add all the streams from the given input file to the global
2774  * list of input streams.
2775  */
2776 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2777 {
2778     int i, rfps, rfps_base;
2779
2780     for (i = 0; i < ic->nb_streams; i++) {
2781         AVStream *st = ic->streams[i];
2782         AVCodecContext *dec = st->codec;
2783         InputStream *ist;
2784         double scale = 1.0;
2785
2786         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2787         ist = &input_streams[nb_input_streams - 1];
2788         ist->st = st;
2789         ist->file_index = nb_input_files;
2790         ist->discard = 1;
2791         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2792
2793         MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2794         ist->ts_scale = scale;
2795
2796         ist->dec = choose_codec(o, ic, st, dec->codec_type);
2797         if (!ist->dec)
2798             ist->dec = avcodec_find_decoder(dec->codec_id);
2799
2800         switch (dec->codec_type) {
2801         case AVMEDIA_TYPE_AUDIO:
2802             if (o->audio_disable)
2803                 st->discard= AVDISCARD_ALL;
2804             break;
2805         case AVMEDIA_TYPE_VIDEO:
2806             rfps      = ic->streams[i]->r_frame_rate.num;
2807             rfps_base = ic->streams[i]->r_frame_rate.den;
2808             if (dec->lowres) {
2809                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2810                 dec->height >>= dec->lowres;
2811                 dec->width  >>= dec->lowres;
2812             }
2813
2814             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2815
2816                 av_log(NULL, AV_LOG_INFO,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2817                        i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2818                        (float)rfps / rfps_base, rfps, rfps_base);
2819             }
2820
2821             if (o->video_disable)
2822                 st->discard= AVDISCARD_ALL;
2823             else if(video_discard)
2824                 st->discard= video_discard;
2825             break;
2826         case AVMEDIA_TYPE_DATA:
2827             break;
2828         case AVMEDIA_TYPE_SUBTITLE:
2829             if (o->subtitle_disable)
2830                 st->discard = AVDISCARD_ALL;
2831             break;
2832         case AVMEDIA_TYPE_ATTACHMENT:
2833         case AVMEDIA_TYPE_UNKNOWN:
2834             break;
2835         default:
2836             abort();
2837         }
2838     }
2839 }
2840
2841 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2842 {
2843     AVFormatContext *ic;
2844     AVInputFormat *file_iformat = NULL;
2845     int err, i, ret;
2846     int64_t timestamp;
2847     uint8_t buf[128];
2848     AVDictionary **opts;
2849     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2850
2851     if (o->format) {
2852         if (!(file_iformat = av_find_input_format(o->format))) {
2853             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
2854             exit_program(1);
2855         }
2856     }
2857
2858     if (!strcmp(filename, "-"))
2859         filename = "pipe:";
2860
2861     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2862                     !strcmp(filename, "/dev/stdin");
2863
2864     /* get default parameters from command line */
2865     ic = avformat_alloc_context();
2866     if (!ic) {
2867         print_error(filename, AVERROR(ENOMEM));
2868         exit_program(1);
2869     }
2870     if (o->nb_audio_sample_rate) {
2871         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2872         av_dict_set(&format_opts, "sample_rate", buf, 0);
2873     }
2874     if (o->nb_audio_channels) {
2875         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2876         av_dict_set(&format_opts, "channels", buf, 0);
2877     }
2878     if (o->nb_frame_rates) {
2879         av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2880     }
2881     if (o->nb_frame_sizes) {
2882         av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2883     }
2884     if (o->nb_frame_pix_fmts)
2885         av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2886
2887     ic->flags |= AVFMT_FLAG_NONBLOCK;
2888
2889     /* open the input file with generic libav function */
2890     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2891     if (err < 0) {
2892         print_error(filename, err);
2893         exit_program(1);
2894     }
2895     assert_avoptions(format_opts);
2896
2897     /* apply forced codec ids */
2898     for (i = 0; i < ic->nb_streams; i++)
2899         choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2900
2901     /* Set AVCodecContext options for avformat_find_stream_info */
2902     opts = setup_find_stream_info_opts(ic, codec_opts);
2903     orig_nb_streams = ic->nb_streams;
2904
2905     /* If not enough info to get the stream parameters, we decode the
2906        first frames to get it. (used in mpeg case for example) */
2907     ret = avformat_find_stream_info(ic, opts);
2908     if (ret < 0) {
2909         av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
2910         av_close_input_file(ic);
2911         exit_program(1);
2912     }
2913
2914     timestamp = o->start_time;
2915     /* add the stream start time */
2916     if (ic->start_time != AV_NOPTS_VALUE)
2917         timestamp += ic->start_time;
2918
2919     /* if seeking requested, we execute it */
2920     if (o->start_time != 0) {
2921         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2922         if (ret < 0) {
2923             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2924                    filename, (double)timestamp / AV_TIME_BASE);
2925         }
2926     }
2927
2928     /* update the current parameters so that they match the one of the input stream */
2929     add_input_streams(o, ic);
2930
2931     /* dump the file content */
2932     av_dump_format(ic, nb_input_files, filename, 0);
2933
2934     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2935     input_files[nb_input_files - 1].ctx        = ic;
2936     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
2937     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
2938     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
2939     input_files[nb_input_files - 1].rate_emu   = o->rate_emu;
2940
2941     for (i = 0; i < orig_nb_streams; i++)
2942         av_dict_free(&opts[i]);
2943     av_freep(&opts);
2944
2945     reset_options(o);
2946     return 0;
2947 }
2948
2949 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2950                                     AVCodecContext *avctx)
2951 {
2952     char *p;
2953     int n = 1, i;
2954     int64_t t;
2955
2956     for (p = kf; *p; p++)
2957         if (*p == ',')
2958             n++;
2959     ost->forced_kf_count = n;
2960     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2961     if (!ost->forced_kf_pts) {
2962         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2963         exit_program(1);
2964     }
2965     for (i = 0; i < n; i++) {
2966         p = i ? strchr(p, ',') + 1 : kf;
2967         t = parse_time_or_die("force_key_frames", p, 1);
2968         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2969     }
2970 }
2971
2972 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
2973 {
2974     OutputStream *ost;
2975     AVStream *st = av_new_stream(oc, oc->nb_streams < o->nb_streamid_map ? o->streamid_map[oc->nb_streams] : 0);
2976     int idx      = oc->nb_streams - 1;
2977     int64_t max_frames = INT64_MAX;
2978     char *bsf = NULL, *next, *codec_tag = NULL;
2979     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
2980     double qscale = -1;
2981
2982     if (!st) {
2983         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
2984         exit_program(1);
2985     }
2986
2987     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
2988                                 nb_output_streams + 1);
2989     ost = &output_streams[nb_output_streams - 1];
2990     ost->file_index = nb_output_files;
2991     ost->index = idx;
2992     ost->st    = st;
2993     st->codec->codec_type = type;
2994     ost->enc = choose_codec(o, oc, st, type);
2995     if (ost->enc) {
2996         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
2997     }
2998
2999     avcodec_get_context_defaults3(st->codec, ost->enc);
3000     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3001
3002     MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
3003     ost->max_frames = max_frames;
3004
3005     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3006     while (bsf) {
3007         if (next = strchr(bsf, ','))
3008             *next++ = 0;
3009         if (!(bsfc = av_bitstream_filter_init(bsf))) {
3010             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3011             exit_program(1);
3012         }
3013         if (bsfc_prev)
3014             bsfc_prev->next = bsfc;
3015         else
3016             ost->bitstream_filters = bsfc;
3017
3018         bsfc_prev = bsfc;
3019         bsf       = next;
3020     }
3021
3022     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3023     if (codec_tag) {
3024         uint32_t tag = strtol(codec_tag, &next, 0);
3025         if (*next)
3026             tag = AV_RL32(codec_tag);
3027         st->codec->codec_tag = tag;
3028     }
3029
3030     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3031     if (qscale >= 0 || same_quant) {
3032         st->codec->flags |= CODEC_FLAG_QSCALE;
3033         st->codec->global_quality = FF_QP2LAMBDA * qscale;
3034     }
3035
3036     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3037         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3038
3039     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3040     return ost;
3041 }
3042
3043 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3044 {
3045     int i;
3046     const char *p = str;
3047     for(i = 0;; i++) {
3048         dest[i] = atoi(p);
3049         if(i == 63)
3050             break;
3051         p = strchr(p, ',');
3052         if(!p) {
3053             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3054             exit_program(1);
3055         }
3056         p++;
3057     }
3058 }
3059
3060 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3061 {
3062     AVStream *st;
3063     OutputStream *ost;
3064     AVCodecContext *video_enc;
3065
3066     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3067     st  = ost->st;
3068     video_enc = st->codec;
3069
3070     if (!st->stream_copy) {
3071         const char *p = NULL;
3072         char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3073         char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3074         char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3075         int i, force_fps = 0, top_field_first = -1;
3076
3077         MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3078         if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3079             av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3080             exit_program(1);
3081         }
3082
3083         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3084         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3085             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3086             exit_program(1);
3087         }
3088
3089         MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3090         if (frame_aspect_ratio)
3091             ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3092
3093         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3094         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3095             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3096             exit_program(1);
3097         }
3098         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3099
3100         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3101         if (intra_matrix) {
3102             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3103                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3104                 exit_program(1);
3105             }
3106             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3107         }
3108         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3109         if (inter_matrix) {
3110             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3111                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3112                 exit_program(1);
3113             }
3114             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3115         }
3116
3117         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3118         for(i=0; p; i++){
3119             int start, end, q;
3120             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3121             if(e!=3){
3122                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3123                 exit_program(1);
3124             }
3125             video_enc->rc_override=
3126                 av_realloc(video_enc->rc_override,
3127                            sizeof(RcOverride)*(i+1));
3128             video_enc->rc_override[i].start_frame= start;
3129             video_enc->rc_override[i].end_frame  = end;
3130             if(q>0){
3131                 video_enc->rc_override[i].qscale= q;
3132                 video_enc->rc_override[i].quality_factor= 1.0;
3133             }
3134             else{
3135                 video_enc->rc_override[i].qscale= 0;
3136                 video_enc->rc_override[i].quality_factor= -q/100.0;
3137             }
3138             p= strchr(p, '/');
3139             if(p) p++;
3140         }
3141         video_enc->rc_override_count=i;
3142         if (!video_enc->rc_initial_buffer_occupancy)
3143             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3144         video_enc->intra_dc_precision= intra_dc_precision - 8;
3145
3146         /* two pass mode */
3147         if (do_pass) {
3148             if (do_pass == 1) {
3149                 video_enc->flags |= CODEC_FLAG_PASS1;
3150             } else {
3151                 video_enc->flags |= CODEC_FLAG_PASS2;
3152             }
3153         }
3154
3155         MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3156         if (forced_key_frames)
3157             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3158
3159         MATCH_PER_STREAM_OPT(force_fps, i, force_fps, oc, st);
3160         ost->force_fps = force_fps;
3161
3162         MATCH_PER_STREAM_OPT(top_field_first, i, top_field_first, oc, st);
3163         ost->top_field_first = top_field_first;
3164
3165 #if CONFIG_AVFILTER
3166         MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3167         if (filters)
3168             ost->avfilter = av_strdup(filters);
3169 #endif
3170     }
3171
3172     return ost;
3173 }
3174
3175 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3176 {
3177     AVStream *st;
3178     OutputStream *ost;
3179     AVCodecContext *audio_enc;
3180
3181     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3182     st  = ost->st;
3183
3184     audio_enc = st->codec;
3185     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3186
3187     if (!st->stream_copy) {
3188         char *sample_fmt = NULL;
3189
3190         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3191
3192         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3193         if (sample_fmt &&
3194             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3195             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3196             exit_program(1);
3197         }
3198
3199         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3200     }
3201
3202     return ost;
3203 }
3204
3205 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3206 {
3207     AVStream *st;
3208     OutputStream *ost;
3209
3210     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3211     st  = ost->st;
3212     if (!st->stream_copy) {
3213         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3214         exit_program(1);
3215     }
3216
3217     return ost;
3218 }
3219
3220 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3221 {
3222     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3223     ost->st->stream_copy = 1;
3224     return ost;
3225 }
3226
3227 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3228 {
3229     AVStream *st;
3230     OutputStream *ost;
3231     AVCodecContext *subtitle_enc;
3232
3233     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3234     st  = ost->st;
3235     subtitle_enc = st->codec;
3236
3237     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3238
3239     return ost;
3240 }
3241
3242 /* arg format is "output-stream-index:streamid-value". */
3243 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
3244 {
3245     int idx;
3246     char *p;
3247     char idx_str[16];
3248
3249     av_strlcpy(idx_str, arg, sizeof(idx_str));
3250     p = strchr(idx_str, ':');
3251     if (!p) {
3252         av_log(NULL, AV_LOG_FATAL,
3253                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3254                arg, opt);
3255         exit_program(1);
3256     }
3257     *p++ = '\0';
3258     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3259     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
3260     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3261     return 0;
3262 }
3263
3264 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3265 {
3266     AVFormatContext *is = ifile->ctx;
3267     AVFormatContext *os = ofile->ctx;
3268     int i;
3269
3270     for (i = 0; i < is->nb_chapters; i++) {
3271         AVChapter *in_ch = is->chapters[i], *out_ch;
3272         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
3273                                       AV_TIME_BASE_Q, in_ch->time_base);
3274         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3275                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3276
3277
3278         if (in_ch->end < ts_off)
3279             continue;
3280         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3281             break;
3282
3283         out_ch = av_mallocz(sizeof(AVChapter));
3284         if (!out_ch)
3285             return AVERROR(ENOMEM);
3286
3287         out_ch->id        = in_ch->id;
3288         out_ch->time_base = in_ch->time_base;
3289         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3290         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3291
3292         if (copy_metadata)
3293             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3294
3295         os->nb_chapters++;
3296         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3297         if (!os->chapters)
3298             return AVERROR(ENOMEM);
3299         os->chapters[os->nb_chapters - 1] = out_ch;
3300     }
3301     return 0;
3302 }
3303
3304 static int read_avserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3305 {
3306     int i, err;
3307     AVFormatContext *ic = NULL;
3308
3309     err = avformat_open_input(&ic, filename, NULL, NULL);
3310     if (err < 0)
3311         return err;
3312     /* copy stream format */
3313     for(i=0;i<ic->nb_streams;i++) {
3314         AVStream *st;
3315         OutputStream *ost;
3316         AVCodec *codec;
3317
3318         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3319         ost   = new_output_stream(o, s, codec->type);
3320         st    = ost->st;
3321
3322         // FIXME: a more elegant solution is needed
3323         memcpy(st, ic->streams[i], sizeof(AVStream));
3324         st->info = NULL;
3325         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3326
3327         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3328             choose_sample_fmt(st, codec);
3329         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3330             choose_pixel_fmt(st, codec);
3331     }
3332
3333     av_close_input_file(ic);
3334     return 0;
3335 }
3336
3337 static void opt_output_file(void *optctx, const char *filename)
3338 {
3339     OptionsContext *o = optctx;
3340     AVFormatContext *oc;
3341     int i, err;
3342     AVOutputFormat *file_oformat;
3343     OutputStream *ost;
3344     InputStream  *ist;
3345
3346     if (!strcmp(filename, "-"))
3347         filename = "pipe:";
3348
3349     oc = avformat_alloc_context();
3350     if (!oc) {
3351         print_error(filename, AVERROR(ENOMEM));
3352         exit_program(1);
3353     }
3354
3355     if (o->format) {
3356         file_oformat = av_guess_format(o->format, NULL, NULL);
3357         if (!file_oformat) {
3358             av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
3359             exit_program(1);
3360         }
3361     } else {
3362         file_oformat = av_guess_format(NULL, filename, NULL);
3363         if (!file_oformat) {
3364             av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
3365                    filename);
3366             exit_program(1);
3367         }
3368     }
3369
3370     oc->oformat = file_oformat;
3371     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3372
3373     if (!strcmp(file_oformat->name, "ffm") &&
3374         av_strstart(filename, "http:", NULL)) {
3375         /* special case for files sent to avserver: we get the stream
3376            parameters from avserver */
3377         int err = read_avserver_streams(o, oc, filename);
3378         if (err < 0) {
3379             print_error(filename, err);
3380             exit_program(1);
3381         }
3382     } else if (!o->nb_stream_maps) {
3383         /* pick the "best" stream of each type */
3384 #define NEW_STREAM(type, index)\
3385         if (index >= 0) {\
3386             ost = new_ ## type ## _stream(o, oc);\
3387             ost->source_index = index;\
3388             ost->sync_ist     = &input_streams[index];\
3389             input_streams[index].discard = 0;\
3390         }
3391
3392         /* video: highest resolution */
3393         if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3394             int area = 0, idx = -1;
3395             for (i = 0; i < nb_input_streams; i++) {
3396                 ist = &input_streams[i];
3397                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3398                     ist->st->codec->width * ist->st->codec->height > area) {
3399                     area = ist->st->codec->width * ist->st->codec->height;
3400                     idx = i;
3401                 }
3402             }
3403             NEW_STREAM(video, idx);
3404         }
3405
3406         /* audio: most channels */
3407         if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3408             int channels = 0, idx = -1;
3409             for (i = 0; i < nb_input_streams; i++) {
3410                 ist = &input_streams[i];
3411                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3412                     ist->st->codec->channels > channels) {
3413                     channels = ist->st->codec->channels;
3414                     idx = i;
3415                 }
3416             }
3417             NEW_STREAM(audio, idx);
3418         }
3419
3420         /* subtitles: pick first */
3421         if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3422             for (i = 0; i < nb_input_streams; i++)
3423                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3424                     NEW_STREAM(subtitle, i);
3425                     break;
3426                 }
3427         }
3428         /* do something with data? */
3429     } else {
3430         for (i = 0; i < o->nb_stream_maps; i++) {
3431             StreamMap *map = &o->stream_maps[i];
3432
3433             if (map->disabled)
3434                 continue;
3435
3436             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3437             switch (ist->st->codec->codec_type) {
3438             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
3439             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(o, oc);    break;
3440             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3441             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(o, oc);     break;
3442             case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
3443             default:
3444                 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d.%d - unsupported type.\n",
3445                        map->file_index, map->stream_index);
3446                 exit_program(1);
3447             }
3448
3449             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3450             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3451                                            map->sync_stream_index];
3452             ist->discard = 0;
3453         }
3454     }
3455
3456     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3457     output_files[nb_output_files - 1].ctx       = oc;
3458     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3459     output_files[nb_output_files - 1].recording_time = o->recording_time;
3460     output_files[nb_output_files - 1].start_time     = o->start_time;
3461     output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3462     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3463
3464     /* check filename in case of an image number is expected */
3465     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3466         if (!av_filename_number_test(oc->filename)) {
3467             print_error(oc->filename, AVERROR(EINVAL));
3468             exit_program(1);
3469         }
3470     }
3471
3472     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3473         /* test if it already exists to avoid loosing precious files */
3474         if (!file_overwrite &&
3475             (strchr(filename, ':') == NULL ||
3476              filename[1] == ':' ||
3477              av_strstart(filename, "file:", NULL))) {
3478             if (avio_check(filename, 0) == 0) {
3479                 if (!using_stdin) {
3480                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3481                     fflush(stderr);
3482                     if (!read_yesno()) {
3483                         fprintf(stderr, "Not overwriting - exiting\n");
3484                         exit_program(1);
3485                     }
3486                 }
3487                 else {
3488                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3489                     exit_program(1);
3490                 }
3491             }
3492         }
3493
3494         /* open the file */
3495         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3496             print_error(filename, err);
3497             exit_program(1);
3498         }
3499     }
3500
3501     oc->preload   = (int)(o->mux_preload   * AV_TIME_BASE);
3502     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
3503     oc->flags |= AVFMT_FLAG_NONBLOCK;
3504
3505     /* copy chapters */
3506     if (o->chapters_input_file >= nb_input_files) {
3507         if (o->chapters_input_file == INT_MAX) {
3508             /* copy chapters from the first input file that has them*/
3509             o->chapters_input_file = -1;
3510             for (i = 0; i < nb_input_files; i++)
3511                 if (input_files[i].ctx->nb_chapters) {
3512                     o->chapters_input_file = i;
3513                     break;
3514                 }
3515         } else {
3516             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
3517                    o->chapters_input_file);
3518             exit_program(1);
3519         }
3520     }
3521     if (o->chapters_input_file >= 0)
3522         copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
3523                       !o->metadata_chapters_manual);
3524
3525     /* copy metadata */
3526     for (i = 0; i < o->nb_meta_data_maps; i++) {
3527         AVFormatContext *files[2];
3528         AVDictionary    **meta[2];
3529         int j;
3530
3531 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3532         if ((index) < 0 || (index) >= (nb_elems)) {\
3533             av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps\n",\
3534                      (desc), (index));\
3535             exit_program(1);\
3536         }
3537
3538         int in_file_index = o->meta_data_maps[i][1].file;
3539         if (in_file_index < 0)
3540             continue;
3541         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3542
3543         files[0] = oc;
3544         files[1] = input_files[in_file_index].ctx;
3545
3546         for (j = 0; j < 2; j++) {
3547             MetadataMap *map = &o->meta_data_maps[i][j];
3548
3549             switch (map->type) {
3550             case 'g':
3551                 meta[j] = &files[j]->metadata;
3552                 break;
3553             case 's':
3554                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3555                 meta[j] = &files[j]->streams[map->index]->metadata;
3556                 break;
3557             case 'c':
3558                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3559                 meta[j] = &files[j]->chapters[map->index]->metadata;
3560                 break;
3561             case 'p':
3562                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3563                 meta[j] = &files[j]->programs[map->index]->metadata;
3564                 break;
3565             }
3566         }
3567
3568         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3569     }
3570
3571     /* copy global metadata by default */
3572     if (!o->metadata_global_manual && nb_input_files)
3573         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3574                      AV_DICT_DONT_OVERWRITE);
3575     if (!o->metadata_streams_manual)
3576         for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
3577             InputStream *ist = &input_streams[output_streams[i].source_index];
3578             av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
3579         }
3580
3581     /* process manually set metadata */
3582     for (i = 0; i < o->nb_metadata; i++) {
3583         AVDictionary **m;
3584         char type, *val;
3585         int index = 0;
3586
3587         val = strchr(o->metadata[i].u.str, '=');
3588         if (!val) {
3589             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
3590                    o->metadata[i].u.str);
3591             exit_program(1);
3592         }
3593         *val++ = 0;
3594
3595         parse_meta_type(o->metadata[i].specifier, &type, &index);
3596         switch (type) {
3597         case 'g':
3598             m = &oc->metadata;
3599             break;
3600         case 's':
3601             if (index < 0 || index >= oc->nb_streams) {
3602                 av_log(NULL, AV_LOG_FATAL, "Invalid stream index %d in metadata specifier.\n", index);
3603                 exit_program(1);
3604             }
3605             m = &oc->streams[index]->metadata;
3606             break;
3607         case 'c':
3608             if (index < 0 || index >= oc->nb_chapters) {
3609                 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
3610                 exit_program(1);
3611             }
3612             m = &oc->chapters[index]->metadata;
3613             break;
3614         default:
3615             av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
3616             exit_program(1);
3617         }
3618
3619         av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
3620     }
3621
3622     reset_options(o);
3623 }
3624
3625 /* same option as mencoder */
3626 static int opt_pass(const char *opt, const char *arg)
3627 {
3628     do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
3629     return 0;
3630 }
3631
3632 static int64_t getutime(void)
3633 {
3634 #if HAVE_GETRUSAGE
3635     struct rusage rusage;
3636
3637     getrusage(RUSAGE_SELF, &rusage);
3638     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3639 #elif HAVE_GETPROCESSTIMES
3640     HANDLE proc;
3641     FILETIME c, e, k, u;
3642     proc = GetCurrentProcess();
3643     GetProcessTimes(proc, &c, &e, &k, &u);
3644     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3645 #else
3646     return av_gettime();
3647 #endif
3648 }
3649
3650 static int64_t getmaxrss(void)
3651 {
3652 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3653     struct rusage rusage;
3654     getrusage(RUSAGE_SELF, &rusage);
3655     return (int64_t)rusage.ru_maxrss * 1024;
3656 #elif HAVE_GETPROCESSMEMORYINFO
3657     HANDLE proc;
3658     PROCESS_MEMORY_COUNTERS memcounters;
3659     proc = GetCurrentProcess();
3660     memcounters.cb = sizeof(memcounters);
3661     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3662     return memcounters.PeakPagefileUsage;
3663 #else
3664     return 0;
3665 #endif
3666 }
3667
3668 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
3669 {
3670     return parse_option(o, "q:a", arg, options);
3671 }
3672
3673 static void show_usage(void)
3674 {
3675     printf("Hyper fast Audio and Video encoder\n");
3676     printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
3677     printf("\n");
3678 }
3679
3680 static void show_help(void)
3681 {
3682     AVCodec *c;
3683     AVOutputFormat *oformat = NULL;
3684     AVInputFormat  *iformat = NULL;
3685     const AVClass *class;
3686
3687     av_log_set_callback(log_callback_help);
3688     show_usage();
3689     show_help_options(options, "Main options:\n",
3690                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3691     show_help_options(options, "\nAdvanced options:\n",
3692                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3693                       OPT_EXPERT);
3694     show_help_options(options, "\nVideo options:\n",
3695                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3696                       OPT_VIDEO);
3697     show_help_options(options, "\nAdvanced Video options:\n",
3698                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3699                       OPT_VIDEO | OPT_EXPERT);
3700     show_help_options(options, "\nAudio options:\n",
3701                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3702                       OPT_AUDIO);
3703     show_help_options(options, "\nAdvanced Audio options:\n",
3704                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3705                       OPT_AUDIO | OPT_EXPERT);
3706     show_help_options(options, "\nSubtitle options:\n",
3707                       OPT_SUBTITLE | OPT_GRAB,
3708                       OPT_SUBTITLE);
3709     show_help_options(options, "\nAudio/Video grab options:\n",
3710                       OPT_GRAB,
3711                       OPT_GRAB);
3712     printf("\n");
3713     class = avcodec_get_class();
3714     av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3715     printf("\n");
3716
3717     /* individual codec options */
3718     c = NULL;
3719     while ((c = av_codec_next(c))) {
3720         if (c->priv_class) {
3721             av_opt_show2(&c->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3722             printf("\n");
3723         }
3724     }
3725
3726     class = avformat_get_class();
3727     av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3728     printf("\n");
3729
3730     /* individual muxer options */
3731     while ((oformat = av_oformat_next(oformat))) {
3732         if (oformat->priv_class) {
3733             av_opt_show2(&oformat->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM, 0);
3734             printf("\n");
3735         }
3736     }
3737
3738     /* individual demuxer options */
3739     while ((iformat = av_iformat_next(iformat))) {
3740         if (iformat->priv_class) {
3741             av_opt_show2(&iformat->priv_class, NULL, AV_OPT_FLAG_DECODING_PARAM, 0);
3742             printf("\n");
3743         }
3744     }
3745
3746     class = sws_get_class();
3747     av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
3748 }
3749
3750 static int opt_target(OptionsContext *o, const char *opt, const char *arg)
3751 {
3752     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
3753     static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3754
3755     if(!strncmp(arg, "pal-", 4)) {
3756         norm = PAL;
3757         arg += 4;
3758     } else if(!strncmp(arg, "ntsc-", 5)) {
3759         norm = NTSC;
3760         arg += 5;
3761     } else if(!strncmp(arg, "film-", 5)) {
3762         norm = FILM;
3763         arg += 5;
3764     } else {
3765         /* Try to determine PAL/NTSC by peeking in the input files */
3766         if(nb_input_files) {
3767             int i, j, fr;
3768             for (j = 0; j < nb_input_files; j++) {
3769                 for (i = 0; i < input_files[j].nb_streams; i++) {
3770                     AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
3771                     if(c->codec_type != AVMEDIA_TYPE_VIDEO)
3772                         continue;
3773                     fr = c->time_base.den * 1000 / c->time_base.num;
3774                     if(fr == 25000) {
3775                         norm = PAL;
3776                         break;
3777                     } else if((fr == 29970) || (fr == 23976)) {
3778                         norm = NTSC;
3779                         break;
3780                     }
3781                 }
3782                 if(norm != UNKNOWN)
3783                     break;
3784             }
3785         }
3786         if (norm != UNKNOWN)
3787             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
3788     }
3789
3790     if(norm == UNKNOWN) {
3791         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
3792         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
3793         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
3794         exit_program(1);
3795     }
3796
3797     if(!strcmp(arg, "vcd")) {
3798         opt_video_codec(o, "c:v", "mpeg1video");
3799         opt_audio_codec(o, "c:a", "mp2");
3800         parse_option(o, "f", "vcd", options);
3801
3802         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
3803         parse_option(o, "r", frame_rates[norm], options);
3804         opt_default("g", norm == PAL ? "15" : "18");
3805
3806         opt_default("b", "1150000");
3807         opt_default("maxrate", "1150000");
3808         opt_default("minrate", "1150000");
3809         opt_default("bufsize", "327680"); // 40*1024*8;
3810
3811         opt_default("b:a", "224000");
3812         parse_option(o, "ar", "44100", options);
3813         parse_option(o, "ac", "2", options);
3814
3815         opt_default("packetsize", "2324");
3816         opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
3817
3818         /* We have to offset the PTS, so that it is consistent with the SCR.
3819            SCR starts at 36000, but the first two packs contain only padding
3820            and the first pack from the other stream, respectively, may also have
3821            been written before.
3822            So the real data starts at SCR 36000+3*1200. */
3823         o->mux_preload = (36000+3*1200) / 90000.0; //0.44
3824     } else if(!strcmp(arg, "svcd")) {
3825
3826         opt_video_codec(o, "c:v", "mpeg2video");
3827         opt_audio_codec(o, "c:a", "mp2");
3828         parse_option(o, "f", "svcd", options);
3829
3830         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
3831         parse_option(o, "r", frame_rates[norm], options);
3832         opt_default("g", norm == PAL ? "15" : "18");
3833
3834         opt_default("b", "2040000");
3835         opt_default("maxrate", "2516000");
3836         opt_default("minrate", "0"); //1145000;
3837         opt_default("bufsize", "1835008"); //224*1024*8;
3838         opt_default("flags", "+scan_offset");
3839
3840
3841         opt_default("b:a", "224000");
3842         parse_option(o, "ar", "44100", options);
3843
3844         opt_default("packetsize", "2324");
3845
3846     } else if(!strcmp(arg, "dvd")) {
3847
3848         opt_video_codec(o, "c:v", "mpeg2video");
3849         opt_audio_codec(o, "c:a", "ac3");
3850         parse_option(o, "f", "dvd", options);
3851
3852         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
3853         parse_option(o, "r", frame_rates[norm], options);
3854         opt_default("g", norm == PAL ? "15" : "18");
3855
3856         opt_default("b", "6000000");
3857         opt_default("maxrate", "9000000");
3858         opt_default("minrate", "0"); //1500000;
3859         opt_default("bufsize", "1835008"); //224*1024*8;
3860
3861         opt_default("packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
3862         opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
3863
3864         opt_default("b:a", "448000");
3865         parse_option(o, "ar", "48000", options);
3866
3867     } else if(!strncmp(arg, "dv", 2)) {
3868
3869         parse_option(o, "f", "dv", options);
3870
3871         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
3872         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
3873                           norm == PAL ? "yuv420p" : "yuv411p", options);
3874         parse_option(o, "r", frame_rates[norm], options);
3875
3876         parse_option(o, "ar", "48000", options);
3877         parse_option(o, "ac", "2", options);
3878
3879     } else {
3880         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
3881         return AVERROR(EINVAL);
3882     }
3883     return 0;
3884 }
3885
3886 static int opt_vstats_file(const char *opt, const char *arg)
3887 {
3888     av_free (vstats_filename);
3889     vstats_filename=av_strdup (arg);
3890     return 0;
3891 }
3892
3893 static int opt_vstats(const char *opt, const char *arg)
3894 {
3895     char filename[40];
3896     time_t today2 = time(NULL);
3897     struct tm *today = localtime(&today2);
3898
3899     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
3900              today->tm_sec);
3901     return opt_vstats_file(opt, filename);
3902 }
3903
3904 static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
3905 {
3906     return parse_option(o, "frames:v", arg, options);
3907 }
3908
3909 static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
3910 {
3911     return parse_option(o, "frames:a", arg, options);
3912 }
3913
3914 static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
3915 {
3916     return parse_option(o, "frames:d", arg, options);
3917 }
3918
3919 static int opt_video_tag(OptionsContext *o, const char *opt, const char *arg)
3920 {
3921     return parse_option(o, "tag:v", arg, options);
3922 }
3923
3924 static int opt_audio_tag(OptionsContext *o, const char *opt, const char *arg)
3925 {
3926     return parse_option(o, "tag:a", arg, options);
3927 }
3928
3929 static int opt_subtitle_tag(OptionsContext *o, const char *opt, const char *arg)
3930 {
3931     return parse_option(o, "tag:s", arg, options);
3932 }
3933
3934 static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
3935 {
3936     return parse_option(o, "filter:v", arg, options);
3937 }
3938
3939 #define OFFSET(x) offsetof(OptionsContext, x)
3940 static const OptionDef options[] = {
3941     /* main options */
3942 #include "cmdutils_common_opts.h"
3943     { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
3944     { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
3945     { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
3946     { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
3947     { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
3948     { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "file.stream[:syncfile.syncstream]" },
3949     { "map_metadata", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_metadata}, "set metadata information of outfile from infile",
3950       "outfile[,metadata]:infile[,metadata]" },
3951     { "map_chapters",  OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)},  "set chapters mapping", "input_file_index" },
3952     { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
3953     { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
3954     { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
3955     { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
3956     { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
3957     { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
3958     { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
3959     { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
3960       "add timings for benchmarking" },
3961     { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
3962     { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
3963       "dump each input packet" },
3964     { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
3965       "when dumping packets, also dump the payload" },
3966     { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
3967     { "v", HAS_ARG, {(void*)opt_verbose}, "deprecated, use -loglevel instead", "number" },
3968     { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
3969     { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
3970     { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
3971     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
3972     { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
3973     { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying" },
3974     { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
3975     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
3976     { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
3977     { "copyinkf", OPT_BOOL | OPT_EXPERT, {(void*)&copy_initial_nonkeyframes}, "copy initial non-keyframes" },
3978     { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
3979     { "tag",   OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
3980     { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
3981     { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
3982 #if CONFIG_AVFILTER
3983     { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
3984 #endif
3985
3986     /* video options */
3987     { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
3988     { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
3989     { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
3990     { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
3991     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
3992     { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
3993     { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
3994     { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
3995     { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
3996     { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
3997       "use same quantizer as source (implies VBR)" },
3998     { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
3999     { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename_prefix}, "select two pass log file name prefix", "prefix" },
4000     { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
4001       "deinterlace pictures" },
4002     { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
4003     { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
4004 #if CONFIG_AVFILTER
4005     { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
4006 #endif
4007     { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
4008     { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
4009     { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
4010     { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
4011     { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
4012     { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
4013     { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
4014     { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
4015     { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
4016
4017     /* audio options */
4018     { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
4019     { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
4020     { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
4021     { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
4022     { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
4023     { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
4024     { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
4025     { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
4026     { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
4027
4028     /* subtitle options */
4029     { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
4030     { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
4031     { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
4032
4033     /* grab options */
4034     { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
4035
4036     /* muxer options */
4037     { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT   | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
4038     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)},   "set the initial demux-decode delay", "seconds" },
4039
4040     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
4041
4042     /* data codec support */
4043     { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
4044
4045     { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
4046     { NULL, },
4047 };
4048
4049 int main(int argc, char **argv)
4050 {
4051     OptionsContext o = { 0 };
4052     int64_t ti;
4053
4054     reset_options(&o);
4055
4056     av_log_set_flags(AV_LOG_SKIP_REPEATED);
4057     parse_loglevel(argc, argv, options);
4058
4059     avcodec_register_all();
4060 #if CONFIG_AVDEVICE
4061     avdevice_register_all();
4062 #endif
4063 #if CONFIG_AVFILTER
4064     avfilter_register_all();
4065 #endif
4066     av_register_all();
4067
4068     avio_set_interrupt_cb(decode_interrupt_cb);
4069
4070     show_banner();
4071
4072     /* parse options */
4073     parse_options(&o, argc, argv, options, opt_output_file);
4074
4075     if(nb_output_files <= 0 && nb_input_files == 0) {
4076         show_usage();
4077         av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
4078         exit_program(1);
4079     }
4080
4081     /* file converter / grab */
4082     if (nb_output_files <= 0) {
4083         fprintf(stderr, "At least one output file must be specified\n");
4084         exit_program(1);
4085     }
4086
4087     if (nb_input_files == 0) {
4088         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
4089         exit_program(1);
4090     }
4091
4092     ti = getutime();
4093     if (transcode(output_files, nb_output_files, input_files, nb_input_files) < 0)
4094         exit_program(1);
4095     ti = getutime() - ti;
4096     if (do_benchmark) {
4097         int maxrss = getmaxrss() / 1024;
4098         printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
4099     }
4100
4101     exit_program(0);
4102     return 0;
4103 }