bdb2d817a7c3a2485883269c007a5c8c499beb5b
[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 /* indexed by output file stream index */
101 static int *streamid_map = NULL;
102 static int nb_streamid_map = 0;
103
104 static int video_discard = 0;
105 static int same_quant = 0;
106 static int do_deinterlace = 0;
107 static int intra_dc_precision = 8;
108 static int qp_hist = 0;
109
110 static int file_overwrite = 0;
111 static int do_benchmark = 0;
112 static int do_hex_dump = 0;
113 static int do_pkt_dump = 0;
114 static int do_pass = 0;
115 static char *pass_logfilename_prefix = NULL;
116 static int video_sync_method= -1;
117 static int audio_sync_method= 0;
118 static float audio_drift_threshold= 0.1;
119 static int copy_ts= 0;
120 static int copy_tb;
121 static int opt_shortest = 0;
122 static char *vstats_filename;
123 static FILE *vstats_file;
124 static int copy_initial_nonkeyframes = 0;
125
126 static int audio_volume = 256;
127
128 static int exit_on_error = 0;
129 static int using_stdin = 0;
130 static int verbose = 1;
131 static int64_t video_size = 0;
132 static int64_t audio_size = 0;
133 static int64_t extra_size = 0;
134 static int nb_frames_dup = 0;
135 static int nb_frames_drop = 0;
136 static int input_sync;
137
138 static float dts_delta_threshold = 10;
139
140 static uint8_t *audio_buf;
141 static uint8_t *audio_out;
142 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
143
144 static short *samples;
145
146 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
147
148 typedef struct InputStream {
149     int file_index;
150     AVStream *st;
151     int discard;             /* true if stream data should be discarded */
152     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
153     AVCodec *dec;
154
155     int64_t       start;     /* time when read started */
156     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
157                                 is not defined */
158     int64_t       pts;       /* current pts */
159     PtsCorrectionContext pts_ctx;
160     double ts_scale;
161     int is_start;            /* is 1 at the start and after a discontinuity */
162     int showed_multi_packet_warning;
163     AVDictionary *opts;
164 } InputStream;
165
166 typedef struct InputFile {
167     AVFormatContext *ctx;
168     int eof_reached;      /* true if eof reached */
169     int ist_index;        /* index of first stream in ist_table */
170     int buffer_size;      /* current total buffer size */
171     int64_t ts_offset;
172     int nb_streams;       /* number of stream that avconv is aware of; may be different
173                              from ctx.nb_streams if new streams appear during av_read_frame() */
174     int rate_emu;
175 } InputFile;
176
177 typedef struct OutputStream {
178     int file_index;          /* file index */
179     int index;               /* stream index in the output file */
180     int source_index;        /* InputStream index */
181     AVStream *st;            /* stream in the output file */
182     int encoding_needed;     /* true if encoding needed for this stream */
183     int frame_number;
184     /* input pts and corresponding output pts
185        for A/V sync */
186     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
187     struct InputStream *sync_ist; /* input stream to sync against */
188     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
189     AVBitStreamFilterContext *bitstream_filters;
190     AVCodec *enc;
191     int64_t max_frames;
192
193     /* video only */
194     int video_resample;
195     AVFrame pict_tmp;      /* temporary image for resampling */
196     struct SwsContext *img_resample_ctx; /* for image resampling */
197     int resample_height;
198     int resample_width;
199     int resample_pix_fmt;
200     AVRational frame_rate;
201     int force_fps;
202     int top_field_first;
203
204     float frame_aspect_ratio;
205
206     /* forced key frames */
207     int64_t *forced_kf_pts;
208     int forced_kf_count;
209     int forced_kf_index;
210
211     /* audio only */
212     int audio_resample;
213     ReSampleContext *resample; /* for audio resampling */
214     int resample_sample_fmt;
215     int resample_channels;
216     int resample_sample_rate;
217     int reformat_pair;
218     AVAudioConvert *reformat_ctx;
219     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
220     FILE *logfile;
221
222 #if CONFIG_AVFILTER
223     AVFilterContext *output_video_filter;
224     AVFilterContext *input_video_filter;
225     AVFilterBufferRef *picref;
226     char *avfilter;
227     AVFilterGraph *graph;
228 #endif
229
230    int sws_flags;
231    AVDictionary *opts;
232    int is_past_recording_time;
233 } OutputStream;
234
235
236 typedef struct OutputFile {
237     AVFormatContext *ctx;
238     AVDictionary *opts;
239     int ost_index;       /* index of the first stream in output_streams */
240     int64_t recording_time; /* desired length of the resulting file in microseconds */
241     int64_t start_time;     /* start time in microseconds */
242     uint64_t limit_filesize;
243 } OutputFile;
244
245 static InputStream *input_streams = NULL;
246 static int         nb_input_streams = 0;
247 static InputFile   *input_files   = NULL;
248 static int         nb_input_files   = 0;
249
250 static OutputStream *output_streams = NULL;
251 static int        nb_output_streams = 0;
252 static OutputFile   *output_files   = NULL;
253 static int        nb_output_files   = 0;
254
255 typedef struct OptionsContext {
256     /* input/output options */
257     int64_t start_time;
258     const char *format;
259
260     SpecifierOpt *codec_names;
261     int        nb_codec_names;
262     SpecifierOpt *audio_channels;
263     int        nb_audio_channels;
264     SpecifierOpt *audio_sample_rate;
265     int        nb_audio_sample_rate;
266     SpecifierOpt *frame_rates;
267     int        nb_frame_rates;
268     SpecifierOpt *frame_sizes;
269     int        nb_frame_sizes;
270     SpecifierOpt *frame_pix_fmts;
271     int        nb_frame_pix_fmts;
272
273     /* input options */
274     int64_t input_ts_offset;
275     int rate_emu;
276
277     SpecifierOpt *ts_scale;
278     int        nb_ts_scale;
279
280     /* output options */
281     StreamMap *stream_maps;
282     int     nb_stream_maps;
283     /* first item specifies output metadata, second is input */
284     MetadataMap (*meta_data_maps)[2];
285     int nb_meta_data_maps;
286     int metadata_global_manual;
287     int metadata_streams_manual;
288     int metadata_chapters_manual;
289
290     int chapters_input_file;
291
292     int64_t recording_time;
293     uint64_t limit_filesize;
294     float mux_preload;
295     float mux_max_delay;
296
297     int video_disable;
298     int audio_disable;
299     int subtitle_disable;
300     int data_disable;
301
302     SpecifierOpt *metadata;
303     int        nb_metadata;
304     SpecifierOpt *max_frames;
305     int        nb_max_frames;
306     SpecifierOpt *bitstream_filters;
307     int        nb_bitstream_filters;
308     SpecifierOpt *codec_tags;
309     int        nb_codec_tags;
310     SpecifierOpt *sample_fmts;
311     int        nb_sample_fmts;
312     SpecifierOpt *qscale;
313     int        nb_qscale;
314     SpecifierOpt *forced_key_frames;
315     int        nb_forced_key_frames;
316     SpecifierOpt *force_fps;
317     int        nb_force_fps;
318     SpecifierOpt *frame_aspect_ratios;
319     int        nb_frame_aspect_ratios;
320     SpecifierOpt *rc_overrides;
321     int        nb_rc_overrides;
322     SpecifierOpt *intra_matrices;
323     int        nb_intra_matrices;
324     SpecifierOpt *inter_matrices;
325     int        nb_inter_matrices;
326     SpecifierOpt *top_field_first;
327     int        nb_top_field_first;
328 #if CONFIG_AVFILTER
329     SpecifierOpt *filters;
330     int        nb_filters;
331 #endif
332 } OptionsContext;
333
334 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
335 {\
336     int i, ret;\
337     for (i = 0; i < o->nb_ ## name; i++) {\
338         char *spec = o->name[i].specifier;\
339         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
340             outvar = o->name[i].u.type;\
341         else if (ret < 0)\
342             exit_program(1);\
343     }\
344 }
345
346 static void reset_options(OptionsContext *o)
347 {
348     const OptionDef *po = options;
349
350     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
351     while (po->name) {
352         void *dst = (uint8_t*)o + po->u.off;
353
354         if (po->flags & OPT_SPEC) {
355             SpecifierOpt **so = dst;
356             int i, *count = (int*)(so + 1);
357             for (i = 0; i < *count; i++) {
358                 av_freep(&(*so)[i].specifier);
359                 if (po->flags & OPT_STRING)
360                     av_freep(&(*so)[i].u.str);
361             }
362             av_freep(so);
363             *count = 0;
364         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
365             av_freep(dst);
366         po++;
367     }
368
369     av_freep(&o->stream_maps);
370     av_freep(&o->meta_data_maps);
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         fprintf(stderr,
539             "Received signal %d: terminating.\n",
540             (int) received_sigterm);
541         exit (255);
542     }
543
544     exit(ret); /* not all OS-es handle main() return value */
545 }
546
547 static void assert_avoptions(AVDictionary *m)
548 {
549     AVDictionaryEntry *t;
550     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
551         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
552         exit_program(1);
553     }
554 }
555
556 static void assert_codec_experimental(AVCodecContext *c, int encoder)
557 {
558     const char *codec_string = encoder ? "encoder" : "decoder";
559     AVCodec *codec;
560     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
561         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
562         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
563                 "results.\nAdd '-strict experimental' if you want to use it.\n",
564                 codec_string, c->codec->name);
565         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
566         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
567             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
568                    codec_string, codec->name);
569         exit_program(1);
570     }
571 }
572
573 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
574 {
575     if(codec && codec->sample_fmts){
576         const enum AVSampleFormat *p= codec->sample_fmts;
577         for(; *p!=-1; p++){
578             if(*p == st->codec->sample_fmt)
579                 break;
580         }
581         if (*p == -1) {
582             av_log(NULL, AV_LOG_WARNING,
583                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
584                    av_get_sample_fmt_name(st->codec->sample_fmt),
585                    codec->name,
586                    av_get_sample_fmt_name(codec->sample_fmts[0]));
587             st->codec->sample_fmt = codec->sample_fmts[0];
588         }
589     }
590 }
591
592 /**
593  * Update the requested input sample format based on the output sample format.
594  * This is currently only used to request float output from decoders which
595  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
596  * Ideally this will be removed in the future when decoders do not do format
597  * conversion and only output in their native format.
598  */
599 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
600                               AVCodecContext *enc)
601 {
602     /* if sample formats match or a decoder sample format has already been
603        requested, just return */
604     if (enc->sample_fmt == dec->sample_fmt ||
605         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
606         return;
607
608     /* if decoder supports more than one output format */
609     if (dec_codec && dec_codec->sample_fmts &&
610         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
611         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
612         const enum AVSampleFormat *p;
613         int min_dec = -1, min_inc = -1;
614
615         /* find a matching sample format in the encoder */
616         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
617             if (*p == enc->sample_fmt) {
618                 dec->request_sample_fmt = *p;
619                 return;
620             } else if (*p > enc->sample_fmt) {
621                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
622             } else
623                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
624         }
625
626         /* if none match, provide the one that matches quality closest */
627         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
628                                   enc->sample_fmt - min_dec;
629     }
630 }
631
632 static void choose_sample_rate(AVStream *st, AVCodec *codec)
633 {
634     if(codec && codec->supported_samplerates){
635         const int *p= codec->supported_samplerates;
636         int best=0;
637         int best_dist=INT_MAX;
638         for(; *p; p++){
639             int dist= abs(st->codec->sample_rate - *p);
640             if(dist < best_dist){
641                 best_dist= dist;
642                 best= *p;
643             }
644         }
645         if(best_dist){
646             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
647         }
648         st->codec->sample_rate= best;
649     }
650 }
651
652 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
653 {
654     if(codec && codec->pix_fmts){
655         const enum PixelFormat *p= codec->pix_fmts;
656         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
657             if(st->codec->codec_id==CODEC_ID_MJPEG){
658                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
659             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
660                 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};
661             }
662         }
663         for(; *p!=-1; p++){
664             if(*p == st->codec->pix_fmt)
665                 break;
666         }
667         if (*p == -1) {
668             if(st->codec->pix_fmt != PIX_FMT_NONE)
669                 av_log(NULL, AV_LOG_WARNING,
670                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
671                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
672                         codec->name,
673                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
674             st->codec->pix_fmt = codec->pix_fmts[0];
675         }
676     }
677 }
678
679 static double
680 get_sync_ipts(const OutputStream *ost)
681 {
682     const InputStream *ist = ost->sync_ist;
683     OutputFile *of = &output_files[ost->file_index];
684     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
685 }
686
687 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
688     int ret;
689
690     while(bsfc){
691         AVPacket new_pkt= *pkt;
692         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
693                                           &new_pkt.data, &new_pkt.size,
694                                           pkt->data, pkt->size,
695                                           pkt->flags & AV_PKT_FLAG_KEY);
696         if(a>0){
697             av_free_packet(pkt);
698             new_pkt.destruct= av_destruct_packet;
699         } else if(a<0){
700             fprintf(stderr, "%s failed for stream %d, codec %s",
701                     bsfc->filter->name, pkt->stream_index,
702                     avctx->codec ? avctx->codec->name : "copy");
703             print_error("", a);
704             if (exit_on_error)
705                 exit_program(1);
706         }
707         *pkt= new_pkt;
708
709         bsfc= bsfc->next;
710     }
711
712     ret= av_interleaved_write_frame(s, pkt);
713     if(ret < 0){
714         print_error("av_interleaved_write_frame()", ret);
715         exit_program(1);
716     }
717 }
718
719 static void do_audio_out(AVFormatContext *s,
720                          OutputStream *ost,
721                          InputStream *ist,
722                          unsigned char *buf, int size)
723 {
724     uint8_t *buftmp;
725     int64_t audio_out_size, audio_buf_size;
726     int64_t allocated_for_size= size;
727
728     int size_out, frame_bytes, ret, resample_changed;
729     AVCodecContext *enc= ost->st->codec;
730     AVCodecContext *dec= ist->st->codec;
731     int osize = av_get_bytes_per_sample(enc->sample_fmt);
732     int isize = av_get_bytes_per_sample(dec->sample_fmt);
733     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
734
735 need_realloc:
736     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
737     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
738     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
739     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
740     audio_buf_size*= osize*enc->channels;
741
742     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
743     if(coded_bps > 8*osize)
744         audio_out_size= audio_out_size * coded_bps / (8*osize);
745     audio_out_size += FF_MIN_BUFFER_SIZE;
746
747     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
748         fprintf(stderr, "Buffer sizes too large\n");
749         exit_program(1);
750     }
751
752     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
753     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
754     if (!audio_buf || !audio_out){
755         fprintf(stderr, "Out of memory in do_audio_out\n");
756         exit_program(1);
757     }
758
759     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
760         ost->audio_resample = 1;
761
762     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
763                        ost->resample_channels    != dec->channels   ||
764                        ost->resample_sample_rate != dec->sample_rate;
765
766     if ((ost->audio_resample && !ost->resample) || resample_changed) {
767         if (resample_changed) {
768             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",
769                    ist->file_index, ist->st->index,
770                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
771                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
772             ost->resample_sample_fmt  = dec->sample_fmt;
773             ost->resample_channels    = dec->channels;
774             ost->resample_sample_rate = dec->sample_rate;
775             if (ost->resample)
776                 audio_resample_close(ost->resample);
777         }
778         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
779         if (audio_sync_method <= 1 &&
780             ost->resample_sample_fmt  == enc->sample_fmt &&
781             ost->resample_channels    == enc->channels   &&
782             ost->resample_sample_rate == enc->sample_rate) {
783             ost->resample = NULL;
784             ost->audio_resample = 0;
785         } else if (ost->audio_resample) {
786             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
787                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
788             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
789                                                    enc->sample_rate, dec->sample_rate,
790                                                    enc->sample_fmt,  dec->sample_fmt,
791                                                    16, 10, 0, 0.8);
792             if (!ost->resample) {
793                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
794                         dec->channels, dec->sample_rate,
795                         enc->channels, enc->sample_rate);
796                 exit_program(1);
797             }
798         }
799     }
800
801 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
802     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
803         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
804         if (ost->reformat_ctx)
805             av_audio_convert_free(ost->reformat_ctx);
806         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
807                                                    dec->sample_fmt, 1, NULL, 0);
808         if (!ost->reformat_ctx) {
809             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
810                 av_get_sample_fmt_name(dec->sample_fmt),
811                 av_get_sample_fmt_name(enc->sample_fmt));
812             exit_program(1);
813         }
814         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
815     }
816
817     if(audio_sync_method){
818         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
819                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
820         double idelta= delta*dec->sample_rate / enc->sample_rate;
821         int byte_delta= ((int)idelta)*2*dec->channels;
822
823         //FIXME resample delay
824         if(fabs(delta) > 50){
825             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
826                 if(byte_delta < 0){
827                     byte_delta= FFMAX(byte_delta, -size);
828                     size += byte_delta;
829                     buf  -= byte_delta;
830                     if(verbose > 2)
831                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
832                     if(!size)
833                         return;
834                     ist->is_start=0;
835                 }else{
836                     static uint8_t *input_tmp= NULL;
837                     input_tmp= av_realloc(input_tmp, byte_delta + size);
838
839                     if(byte_delta > allocated_for_size - size){
840                         allocated_for_size= byte_delta + (int64_t)size;
841                         goto need_realloc;
842                     }
843                     ist->is_start=0;
844
845                     memset(input_tmp, 0, byte_delta);
846                     memcpy(input_tmp + byte_delta, buf, size);
847                     buf= input_tmp;
848                     size += byte_delta;
849                     if(verbose > 2)
850                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
851                 }
852             }else if(audio_sync_method>1){
853                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
854                 av_assert0(ost->audio_resample);
855                 if(verbose > 2)
856                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
857 //                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));
858                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
859             }
860         }
861     }else
862         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
863                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
864
865     if (ost->audio_resample) {
866         buftmp = audio_buf;
867         size_out = audio_resample(ost->resample,
868                                   (short *)buftmp, (short *)buf,
869                                   size / (dec->channels * isize));
870         size_out = size_out * enc->channels * osize;
871     } else {
872         buftmp = buf;
873         size_out = size;
874     }
875
876     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
877         const void *ibuf[6]= {buftmp};
878         void *obuf[6]= {audio_buf};
879         int istride[6]= {isize};
880         int ostride[6]= {osize};
881         int len= size_out/istride[0];
882         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
883             printf("av_audio_convert() failed\n");
884             if (exit_on_error)
885                 exit_program(1);
886             return;
887         }
888         buftmp = audio_buf;
889         size_out = len*osize;
890     }
891
892     /* now encode as many frames as possible */
893     if (enc->frame_size > 1) {
894         /* output resampled raw samples */
895         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
896             fprintf(stderr, "av_fifo_realloc2() failed\n");
897             exit_program(1);
898         }
899         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
900
901         frame_bytes = enc->frame_size * osize * enc->channels;
902
903         while (av_fifo_size(ost->fifo) >= frame_bytes) {
904             AVPacket pkt;
905             av_init_packet(&pkt);
906
907             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
908
909             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
910
911             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
912                                        (short *)audio_buf);
913             if (ret < 0) {
914                 fprintf(stderr, "Audio encoding failed\n");
915                 exit_program(1);
916             }
917             audio_size += ret;
918             pkt.stream_index= ost->index;
919             pkt.data= audio_out;
920             pkt.size= ret;
921             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
922                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
923             pkt.flags |= AV_PKT_FLAG_KEY;
924             write_frame(s, &pkt, enc, ost->bitstream_filters);
925
926             ost->sync_opts += enc->frame_size;
927         }
928     } else {
929         AVPacket pkt;
930         av_init_packet(&pkt);
931
932         ost->sync_opts += size_out / (osize * enc->channels);
933
934         /* output a pcm frame */
935         /* determine the size of the coded buffer */
936         size_out /= osize;
937         if (coded_bps)
938             size_out = size_out*coded_bps/8;
939
940         if(size_out > audio_out_size){
941             fprintf(stderr, "Internal error, buffer size too small\n");
942             exit_program(1);
943         }
944
945         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
946         ret = avcodec_encode_audio(enc, audio_out, size_out,
947                                    (short *)buftmp);
948         if (ret < 0) {
949             fprintf(stderr, "Audio encoding failed\n");
950             exit_program(1);
951         }
952         audio_size += ret;
953         pkt.stream_index= ost->index;
954         pkt.data= audio_out;
955         pkt.size= ret;
956         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
957             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
958         pkt.flags |= AV_PKT_FLAG_KEY;
959         write_frame(s, &pkt, enc, ost->bitstream_filters);
960     }
961 }
962
963 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
964 {
965     AVCodecContext *dec;
966     AVPicture *picture2;
967     AVPicture picture_tmp;
968     uint8_t *buf = 0;
969
970     dec = ist->st->codec;
971
972     /* deinterlace : must be done before any resize */
973     if (do_deinterlace) {
974         int size;
975
976         /* create temporary picture */
977         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
978         buf = av_malloc(size);
979         if (!buf)
980             return;
981
982         picture2 = &picture_tmp;
983         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
984
985         if(avpicture_deinterlace(picture2, picture,
986                                  dec->pix_fmt, dec->width, dec->height) < 0) {
987             /* if error, do not deinterlace */
988             fprintf(stderr, "Deinterlacing failed\n");
989             av_free(buf);
990             buf = NULL;
991             picture2 = picture;
992         }
993     } else {
994         picture2 = picture;
995     }
996
997     if (picture != picture2)
998         *picture = *picture2;
999     *bufp = buf;
1000 }
1001
1002 static void do_subtitle_out(AVFormatContext *s,
1003                             OutputStream *ost,
1004                             InputStream *ist,
1005                             AVSubtitle *sub,
1006                             int64_t pts)
1007 {
1008     static uint8_t *subtitle_out = NULL;
1009     int subtitle_out_max_size = 1024 * 1024;
1010     int subtitle_out_size, nb, i;
1011     AVCodecContext *enc;
1012     AVPacket pkt;
1013
1014     if (pts == AV_NOPTS_VALUE) {
1015         fprintf(stderr, "Subtitle packets must have a pts\n");
1016         if (exit_on_error)
1017             exit_program(1);
1018         return;
1019     }
1020
1021     enc = ost->st->codec;
1022
1023     if (!subtitle_out) {
1024         subtitle_out = av_malloc(subtitle_out_max_size);
1025     }
1026
1027     /* Note: DVB subtitle need one packet to draw them and one other
1028        packet to clear them */
1029     /* XXX: signal it in the codec context ? */
1030     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1031         nb = 2;
1032     else
1033         nb = 1;
1034
1035     for(i = 0; i < nb; i++) {
1036         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1037         // start_display_time is required to be 0
1038         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1039         sub->end_display_time -= sub->start_display_time;
1040         sub->start_display_time = 0;
1041         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1042                                                     subtitle_out_max_size, sub);
1043         if (subtitle_out_size < 0) {
1044             fprintf(stderr, "Subtitle encoding failed\n");
1045             exit_program(1);
1046         }
1047
1048         av_init_packet(&pkt);
1049         pkt.stream_index = ost->index;
1050         pkt.data = subtitle_out;
1051         pkt.size = subtitle_out_size;
1052         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1053         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1054             /* XXX: the pts correction is handled here. Maybe handling
1055                it in the codec would be better */
1056             if (i == 0)
1057                 pkt.pts += 90 * sub->start_display_time;
1058             else
1059                 pkt.pts += 90 * sub->end_display_time;
1060         }
1061         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1062     }
1063 }
1064
1065 static int bit_buffer_size= 1024*256;
1066 static uint8_t *bit_buffer= NULL;
1067
1068 static void do_video_resample(OutputStream *ost,
1069                               InputStream *ist,
1070                               AVFrame *in_picture,
1071                               AVFrame **out_picture)
1072 {
1073     int resample_changed = 0;
1074     AVCodecContext *dec = ist->st->codec;
1075     *out_picture = in_picture;
1076
1077     resample_changed = ost->resample_width   != dec->width  ||
1078                        ost->resample_height  != dec->height ||
1079                        ost->resample_pix_fmt != dec->pix_fmt;
1080
1081     if (resample_changed) {
1082         av_log(NULL, AV_LOG_INFO,
1083                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1084                ist->file_index, ist->st->index,
1085                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1086                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1087         if(!ost->video_resample)
1088             ost->video_resample = 1;
1089     }
1090
1091 #if !CONFIG_AVFILTER
1092     if (ost->video_resample) {
1093         *out_picture = &ost->pict_tmp;
1094         if (resample_changed) {
1095             /* initialize a new scaler context */
1096             sws_freeContext(ost->img_resample_ctx);
1097             ost->img_resample_ctx = sws_getContext(
1098                 ist->st->codec->width,
1099                 ist->st->codec->height,
1100                 ist->st->codec->pix_fmt,
1101                 ost->st->codec->width,
1102                 ost->st->codec->height,
1103                 ost->st->codec->pix_fmt,
1104                 ost->sws_flags, NULL, NULL, NULL);
1105             if (ost->img_resample_ctx == NULL) {
1106                 fprintf(stderr, "Cannot get resampling context\n");
1107                 exit_program(1);
1108             }
1109         }
1110         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1111               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1112     }
1113 #else
1114     if (resample_changed) {
1115         avfilter_graph_free(&ost->graph);
1116         if (configure_video_filters(ist, ost)) {
1117             fprintf(stderr, "Error reinitializing filters!\n");
1118             exit_program(1);
1119         }
1120     }
1121 #endif
1122     if (resample_changed) {
1123         ost->resample_width   = dec->width;
1124         ost->resample_height  = dec->height;
1125         ost->resample_pix_fmt = dec->pix_fmt;
1126     }
1127 }
1128
1129
1130 static void do_video_out(AVFormatContext *s,
1131                          OutputStream *ost,
1132                          InputStream *ist,
1133                          AVFrame *in_picture,
1134                          int *frame_size, float quality)
1135 {
1136     int nb_frames, i, ret, format_video_sync;
1137     AVFrame *final_picture;
1138     AVCodecContext *enc;
1139     double sync_ipts;
1140
1141     enc = ost->st->codec;
1142
1143     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1144
1145     /* by default, we output a single frame */
1146     nb_frames = 1;
1147
1148     *frame_size = 0;
1149
1150     format_video_sync = video_sync_method;
1151     if (format_video_sync < 0)
1152         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1153
1154     if (format_video_sync) {
1155         double vdelta = sync_ipts - ost->sync_opts;
1156         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1157         if (vdelta < -1.1)
1158             nb_frames = 0;
1159         else if (format_video_sync == 2) {
1160             if(vdelta<=-0.6){
1161                 nb_frames=0;
1162             }else if(vdelta>0.6)
1163                 ost->sync_opts= lrintf(sync_ipts);
1164         }else if (vdelta > 1.1)
1165             nb_frames = lrintf(vdelta);
1166 //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);
1167         if (nb_frames == 0){
1168             ++nb_frames_drop;
1169             if (verbose>2)
1170                 fprintf(stderr, "*** drop!\n");
1171         }else if (nb_frames > 1) {
1172             nb_frames_dup += nb_frames - 1;
1173             if (verbose>2)
1174                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1175         }
1176     }else
1177         ost->sync_opts= lrintf(sync_ipts);
1178
1179     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1180     if (nb_frames <= 0)
1181         return;
1182
1183     do_video_resample(ost, ist, in_picture, &final_picture);
1184
1185     /* duplicates frame if needed */
1186     for(i=0;i<nb_frames;i++) {
1187         AVPacket pkt;
1188         av_init_packet(&pkt);
1189         pkt.stream_index= ost->index;
1190
1191         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1192             /* raw pictures are written as AVPicture structure to
1193                avoid any copies. We support temporarily the older
1194                method. */
1195             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1196             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1197             pkt.data= (uint8_t *)final_picture;
1198             pkt.size=  sizeof(AVPicture);
1199             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1200             pkt.flags |= AV_PKT_FLAG_KEY;
1201
1202             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1203         } else {
1204             AVFrame big_picture;
1205
1206             big_picture= *final_picture;
1207             /* better than nothing: use input picture interlaced
1208                settings */
1209             big_picture.interlaced_frame = in_picture->interlaced_frame;
1210             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1211                 if (ost->top_field_first == -1)
1212                     big_picture.top_field_first = in_picture->top_field_first;
1213                 else
1214                     big_picture.top_field_first = !!ost->top_field_first;
1215             }
1216
1217             /* handles same_quant here. This is not correct because it may
1218                not be a global option */
1219             big_picture.quality = quality;
1220             if (!enc->me_threshold)
1221                 big_picture.pict_type = 0;
1222 //            big_picture.pts = AV_NOPTS_VALUE;
1223             big_picture.pts= ost->sync_opts;
1224 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1225 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1226             if (ost->forced_kf_index < ost->forced_kf_count &&
1227                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1228                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1229                 ost->forced_kf_index++;
1230             }
1231             ret = avcodec_encode_video(enc,
1232                                        bit_buffer, bit_buffer_size,
1233                                        &big_picture);
1234             if (ret < 0) {
1235                 fprintf(stderr, "Video encoding failed\n");
1236                 exit_program(1);
1237             }
1238
1239             if(ret>0){
1240                 pkt.data= bit_buffer;
1241                 pkt.size= ret;
1242                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1243                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1244 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1245    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1246    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1247
1248                 if(enc->coded_frame->key_frame)
1249                     pkt.flags |= AV_PKT_FLAG_KEY;
1250                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1251                 *frame_size = ret;
1252                 video_size += ret;
1253                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1254                 //        enc->frame_number-1, ret, enc->pict_type);
1255                 /* if two pass, output log */
1256                 if (ost->logfile && enc->stats_out) {
1257                     fprintf(ost->logfile, "%s", enc->stats_out);
1258                 }
1259             }
1260         }
1261         ost->sync_opts++;
1262         ost->frame_number++;
1263     }
1264 }
1265
1266 static double psnr(double d){
1267     return -10.0*log(d)/log(10.0);
1268 }
1269
1270 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1271                            int frame_size)
1272 {
1273     AVCodecContext *enc;
1274     int frame_number;
1275     double ti1, bitrate, avg_bitrate;
1276
1277     /* this is executed just the first time do_video_stats is called */
1278     if (!vstats_file) {
1279         vstats_file = fopen(vstats_filename, "w");
1280         if (!vstats_file) {
1281             perror("fopen");
1282             exit_program(1);
1283         }
1284     }
1285
1286     enc = ost->st->codec;
1287     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1288         frame_number = ost->frame_number;
1289         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1290         if (enc->flags&CODEC_FLAG_PSNR)
1291             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1292
1293         fprintf(vstats_file,"f_size= %6d ", frame_size);
1294         /* compute pts value */
1295         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1296         if (ti1 < 0.01)
1297             ti1 = 0.01;
1298
1299         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1300         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1301         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1302             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1303         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1304     }
1305 }
1306
1307 static void print_report(OutputFile *output_files,
1308                          OutputStream *ost_table, int nb_ostreams,
1309                          int is_last_report, int64_t timer_start)
1310 {
1311     char buf[1024];
1312     OutputStream *ost;
1313     AVFormatContext *oc;
1314     int64_t total_size;
1315     AVCodecContext *enc;
1316     int frame_number, vid, i;
1317     double bitrate, ti1, pts;
1318     static int64_t last_time = -1;
1319     static int qp_histogram[52];
1320
1321     if (!is_last_report) {
1322         int64_t cur_time;
1323         /* display the report every 0.5 seconds */
1324         cur_time = av_gettime();
1325         if (last_time == -1) {
1326             last_time = cur_time;
1327             return;
1328         }
1329         if ((cur_time - last_time) < 500000)
1330             return;
1331         last_time = cur_time;
1332     }
1333
1334
1335     oc = output_files[0].ctx;
1336
1337     total_size = avio_size(oc->pb);
1338     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1339         total_size= avio_tell(oc->pb);
1340
1341     buf[0] = '\0';
1342     ti1 = 1e10;
1343     vid = 0;
1344     for(i=0;i<nb_ostreams;i++) {
1345         float q = -1;
1346         ost = &ost_table[i];
1347         enc = ost->st->codec;
1348         if (!ost->st->stream_copy && enc->coded_frame)
1349             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1350         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1351             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1352         }
1353         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1354             float t = (av_gettime()-timer_start) / 1000000.0;
1355
1356             frame_number = ost->frame_number;
1357             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1358                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1359             if(is_last_report)
1360                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1361             if(qp_hist){
1362                 int j;
1363                 int qp = lrintf(q);
1364                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1365                     qp_histogram[qp]++;
1366                 for(j=0; j<32; j++)
1367                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1368             }
1369             if (enc->flags&CODEC_FLAG_PSNR){
1370                 int j;
1371                 double error, error_sum=0;
1372                 double scale, scale_sum=0;
1373                 char type[3]= {'Y','U','V'};
1374                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1375                 for(j=0; j<3; j++){
1376                     if(is_last_report){
1377                         error= enc->error[j];
1378                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1379                     }else{
1380                         error= enc->coded_frame->error[j];
1381                         scale= enc->width*enc->height*255.0*255.0;
1382                     }
1383                     if(j) scale/=4;
1384                     error_sum += error;
1385                     scale_sum += scale;
1386                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1387                 }
1388                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1389             }
1390             vid = 1;
1391         }
1392         /* compute min output value */
1393         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1394         if ((pts < ti1) && (pts > 0))
1395             ti1 = pts;
1396     }
1397     if (ti1 < 0.01)
1398         ti1 = 0.01;
1399
1400     if (verbose > 0 || is_last_report) {
1401         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1402
1403         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1404             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1405             (double)total_size / 1024, ti1, bitrate);
1406
1407         if (nb_frames_dup || nb_frames_drop)
1408           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1409                   nb_frames_dup, nb_frames_drop);
1410
1411         if (verbose >= 0)
1412             fprintf(stderr, "%s    \r", buf);
1413
1414         fflush(stderr);
1415     }
1416
1417     if (is_last_report && verbose >= 0){
1418         int64_t raw= audio_size + video_size + extra_size;
1419         fprintf(stderr, "\n");
1420         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1421                 video_size/1024.0,
1422                 audio_size/1024.0,
1423                 extra_size/1024.0,
1424                 100.0*(total_size - raw)/raw
1425         );
1426     }
1427 }
1428
1429 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1430 {
1431     int fill_char = 0x00;
1432     if (sample_fmt == AV_SAMPLE_FMT_U8)
1433         fill_char = 0x80;
1434     memset(buf, fill_char, size);
1435 }
1436
1437 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1438 {
1439     int i, ret;
1440
1441     for (i = 0; i < nb_ostreams; i++) {
1442         OutputStream   *ost = &ost_table[i];
1443         AVCodecContext *enc = ost->st->codec;
1444         AVFormatContext *os = output_files[ost->file_index].ctx;
1445
1446         if (!ost->encoding_needed)
1447             continue;
1448
1449         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1450             continue;
1451         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1452             continue;
1453
1454         for(;;) {
1455             AVPacket pkt;
1456             int fifo_bytes;
1457             av_init_packet(&pkt);
1458             pkt.stream_index= ost->index;
1459
1460             switch (ost->st->codec->codec_type) {
1461             case AVMEDIA_TYPE_AUDIO:
1462                 fifo_bytes = av_fifo_size(ost->fifo);
1463                 ret = 0;
1464                 /* encode any samples remaining in fifo */
1465                 if (fifo_bytes > 0) {
1466                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1467                     int fs_tmp = enc->frame_size;
1468
1469                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1470                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1471                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1472                     } else { /* pad */
1473                         int frame_bytes = enc->frame_size*osize*enc->channels;
1474                         if (allocated_audio_buf_size < frame_bytes)
1475                             exit_program(1);
1476                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1477                     }
1478
1479                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1480                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1481                                               ost->st->time_base.num, enc->sample_rate);
1482                     enc->frame_size = fs_tmp;
1483                 }
1484                 if (ret <= 0) {
1485                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1486                 }
1487                 if (ret < 0) {
1488                     fprintf(stderr, "Audio encoding failed\n");
1489                     exit_program(1);
1490                 }
1491                 audio_size += ret;
1492                 pkt.flags |= AV_PKT_FLAG_KEY;
1493                 break;
1494             case AVMEDIA_TYPE_VIDEO:
1495                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1496                 if (ret < 0) {
1497                     fprintf(stderr, "Video encoding failed\n");
1498                     exit_program(1);
1499                 }
1500                 video_size += ret;
1501                 if(enc->coded_frame && enc->coded_frame->key_frame)
1502                     pkt.flags |= AV_PKT_FLAG_KEY;
1503                 if (ost->logfile && enc->stats_out) {
1504                     fprintf(ost->logfile, "%s", enc->stats_out);
1505                 }
1506                 break;
1507             default:
1508                 ret=-1;
1509             }
1510
1511             if (ret <= 0)
1512                 break;
1513             pkt.data = bit_buffer;
1514             pkt.size = ret;
1515             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1516                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1517             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1518         }
1519     }
1520 }
1521
1522 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1523 static int output_packet(InputStream *ist, int ist_index,
1524                          OutputStream *ost_table, int nb_ostreams,
1525                          const AVPacket *pkt)
1526 {
1527     AVFormatContext *os;
1528     OutputStream *ost;
1529     int ret, i;
1530     int got_output;
1531     AVFrame picture;
1532     void *buffer_to_free = NULL;
1533     static unsigned int samples_size= 0;
1534     AVSubtitle subtitle, *subtitle_to_free;
1535     int64_t pkt_pts = AV_NOPTS_VALUE;
1536 #if CONFIG_AVFILTER
1537     int frame_available;
1538 #endif
1539     float quality;
1540
1541     AVPacket avpkt;
1542     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1543
1544     if(ist->next_pts == AV_NOPTS_VALUE)
1545         ist->next_pts= ist->pts;
1546
1547     if (pkt == NULL) {
1548         /* EOF handling */
1549         av_init_packet(&avpkt);
1550         avpkt.data = NULL;
1551         avpkt.size = 0;
1552         goto handle_eof;
1553     } else {
1554         avpkt = *pkt;
1555     }
1556
1557     if(pkt->dts != AV_NOPTS_VALUE)
1558         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1559     if(pkt->pts != AV_NOPTS_VALUE)
1560         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1561
1562     //while we have more to decode or while the decoder did output something on EOF
1563     while (avpkt.size > 0 || (!pkt && got_output)) {
1564         uint8_t *data_buf, *decoded_data_buf;
1565         int data_size, decoded_data_size;
1566     handle_eof:
1567         ist->pts= ist->next_pts;
1568
1569         if(avpkt.size && avpkt.size != pkt->size &&
1570            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1571             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1572             ist->showed_multi_packet_warning=1;
1573         }
1574
1575         /* decode the packet if needed */
1576         decoded_data_buf = NULL; /* fail safe */
1577         decoded_data_size= 0;
1578         data_buf  = avpkt.data;
1579         data_size = avpkt.size;
1580         subtitle_to_free = NULL;
1581         if (ist->decoding_needed) {
1582             switch(ist->st->codec->codec_type) {
1583             case AVMEDIA_TYPE_AUDIO:{
1584                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1585                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1586                     av_free(samples);
1587                     samples= av_malloc(samples_size);
1588                 }
1589                 decoded_data_size= samples_size;
1590                     /* XXX: could avoid copy if PCM 16 bits with same
1591                        endianness as CPU */
1592                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1593                                             &avpkt);
1594                 if (ret < 0)
1595                     return ret;
1596                 avpkt.data += ret;
1597                 avpkt.size -= ret;
1598                 data_size   = ret;
1599                 got_output  = decoded_data_size > 0;
1600                 /* Some bug in mpeg audio decoder gives */
1601                 /* decoded_data_size < 0, it seems they are overflows */
1602                 if (!got_output) {
1603                     /* no audio frame */
1604                     continue;
1605                 }
1606                 decoded_data_buf = (uint8_t *)samples;
1607                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1608                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1609                 break;}
1610             case AVMEDIA_TYPE_VIDEO:
1611                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1612                     /* XXX: allocate picture correctly */
1613                     avcodec_get_frame_defaults(&picture);
1614                     avpkt.pts = pkt_pts;
1615                     avpkt.dts = ist->pts;
1616                     pkt_pts = AV_NOPTS_VALUE;
1617
1618                     ret = avcodec_decode_video2(ist->st->codec,
1619                                                 &picture, &got_output, &avpkt);
1620                     quality = same_quant ? picture.quality : 0;
1621                     if (ret < 0)
1622                         return ret;
1623                     if (!got_output) {
1624                         /* no picture yet */
1625                         goto discard_packet;
1626                     }
1627                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1628                     if (ist->st->codec->time_base.num != 0) {
1629                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1630                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1631                                           ist->st->codec->time_base.num * ticks) /
1632                             ist->st->codec->time_base.den;
1633                     }
1634                     avpkt.size = 0;
1635                     buffer_to_free = NULL;
1636                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1637                     break;
1638             case AVMEDIA_TYPE_SUBTITLE:
1639                 ret = avcodec_decode_subtitle2(ist->st->codec,
1640                                                &subtitle, &got_output, &avpkt);
1641                 if (ret < 0)
1642                     return ret;
1643                 if (!got_output) {
1644                     goto discard_packet;
1645                 }
1646                 subtitle_to_free = &subtitle;
1647                 avpkt.size = 0;
1648                 break;
1649             default:
1650                 return -1;
1651             }
1652         } else {
1653             switch(ist->st->codec->codec_type) {
1654             case AVMEDIA_TYPE_AUDIO:
1655                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1656                     ist->st->codec->sample_rate;
1657                 break;
1658             case AVMEDIA_TYPE_VIDEO:
1659                 if (ist->st->codec->time_base.num != 0) {
1660                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1661                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1662                                       ist->st->codec->time_base.num * ticks) /
1663                         ist->st->codec->time_base.den;
1664                 }
1665                 break;
1666             }
1667             avpkt.size = 0;
1668         }
1669
1670         // preprocess audio (volume)
1671         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1672             if (audio_volume != 256) {
1673                 short *volp;
1674                 volp = samples;
1675                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1676                     int v = ((*volp) * audio_volume + 128) >> 8;
1677                     *volp++ = av_clip_int16(v);
1678                 }
1679             }
1680         }
1681
1682         /* frame rate emulation */
1683         if (input_files[ist->file_index].rate_emu) {
1684             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1685             int64_t now = av_gettime() - ist->start;
1686             if (pts > now)
1687                 usleep(pts - now);
1688         }
1689         /* if output time reached then transcode raw format,
1690            encode packets and output them */
1691         for (i = 0; i < nb_ostreams; i++) {
1692             OutputFile *of = &output_files[ost_table[i].file_index];
1693             int frame_size;
1694
1695             ost = &ost_table[i];
1696             if (ost->source_index != ist_index)
1697                 continue;
1698
1699             if (of->start_time && ist->pts < of->start_time)
1700                 continue;
1701
1702             if (of->recording_time != INT64_MAX &&
1703                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1704                               (AVRational){1, 1000000}) >= 0) {
1705                 ost->is_past_recording_time = 1;
1706                 continue;
1707             }
1708
1709 #if CONFIG_AVFILTER
1710             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1711                 ost->input_video_filter) {
1712                 AVRational sar;
1713                 if (ist->st->sample_aspect_ratio.num)
1714                     sar = ist->st->sample_aspect_ratio;
1715                 else
1716                     sar = ist->st->codec->sample_aspect_ratio;
1717                 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1718             }
1719             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1720                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1721             while (frame_available) {
1722                 AVRational ist_pts_tb;
1723                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1724                     get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1725                 if (ost->picref)
1726                     ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1727 #endif
1728                 os = output_files[ost->file_index].ctx;
1729
1730                 /* set the input output pts pairs */
1731                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1732
1733                 if (ost->encoding_needed) {
1734                     av_assert0(ist->decoding_needed);
1735                     switch(ost->st->codec->codec_type) {
1736                     case AVMEDIA_TYPE_AUDIO:
1737                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1738                         break;
1739                     case AVMEDIA_TYPE_VIDEO:
1740 #if CONFIG_AVFILTER
1741                         if (ost->picref->video && !ost->frame_aspect_ratio)
1742                             ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1743 #endif
1744                         do_video_out(os, ost, ist, &picture, &frame_size,
1745                                      same_quant ? quality : ost->st->codec->global_quality);
1746                         if (vstats_filename && frame_size)
1747                             do_video_stats(os, ost, frame_size);
1748                         break;
1749                     case AVMEDIA_TYPE_SUBTITLE:
1750                         do_subtitle_out(os, ost, ist, &subtitle,
1751                                         pkt->pts);
1752                         break;
1753                     default:
1754                         abort();
1755                     }
1756                 } else {
1757                     AVFrame avframe; //FIXME/XXX remove this
1758                     AVPacket opkt;
1759                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1760
1761                     av_init_packet(&opkt);
1762
1763                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1764 #if !CONFIG_AVFILTER
1765                         continue;
1766 #else
1767                         goto cont;
1768 #endif
1769
1770                     /* no reencoding needed : output the packet directly */
1771                     /* force the input stream PTS */
1772
1773                     avcodec_get_frame_defaults(&avframe);
1774                     ost->st->codec->coded_frame= &avframe;
1775                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1776
1777                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1778                         audio_size += data_size;
1779                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1780                         video_size += data_size;
1781                         ost->sync_opts++;
1782                     }
1783
1784                     opkt.stream_index= ost->index;
1785                     if(pkt->pts != AV_NOPTS_VALUE)
1786                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1787                     else
1788                         opkt.pts= AV_NOPTS_VALUE;
1789
1790                     if (pkt->dts == AV_NOPTS_VALUE)
1791                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1792                     else
1793                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1794                     opkt.dts -= ost_tb_start_time;
1795
1796                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1797                     opkt.flags= pkt->flags;
1798
1799                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1800                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1801                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1802                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1803                        ) {
1804                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1805                             opkt.destruct= av_destruct_packet;
1806                     } else {
1807                         opkt.data = data_buf;
1808                         opkt.size = data_size;
1809                     }
1810
1811                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1812                     ost->st->codec->frame_number++;
1813                     ost->frame_number++;
1814                     av_free_packet(&opkt);
1815                 }
1816 #if CONFIG_AVFILTER
1817                 cont:
1818                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1819                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1820                 if (ost->picref)
1821                     avfilter_unref_buffer(ost->picref);
1822             }
1823 #endif
1824             }
1825
1826         av_free(buffer_to_free);
1827         /* XXX: allocate the subtitles in the codec ? */
1828         if (subtitle_to_free) {
1829             avsubtitle_free(subtitle_to_free);
1830             subtitle_to_free = NULL;
1831         }
1832     }
1833  discard_packet:
1834
1835     return 0;
1836 }
1837
1838 static void print_sdp(OutputFile *output_files, int n)
1839 {
1840     char sdp[2048];
1841     int i;
1842     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1843
1844     if (!avc)
1845         exit_program(1);
1846     for (i = 0; i < n; i++)
1847         avc[i] = output_files[i].ctx;
1848
1849     av_sdp_create(avc, n, sdp, sizeof(sdp));
1850     printf("SDP:\n%s\n", sdp);
1851     fflush(stdout);
1852     av_freep(&avc);
1853 }
1854
1855 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1856                              char *error, int error_len)
1857 {
1858     int i;
1859     InputStream *ist = &input_streams[ist_index];
1860     if (ist->decoding_needed) {
1861         AVCodec *codec = ist->dec;
1862         if (!codec) {
1863             snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1864                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1865             return AVERROR(EINVAL);
1866         }
1867
1868         /* update requested sample format for the decoder based on the
1869            corresponding encoder sample format */
1870         for (i = 0; i < nb_output_streams; i++) {
1871             OutputStream *ost = &output_streams[i];
1872             if (ost->source_index == ist_index) {
1873                 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1874                 break;
1875             }
1876         }
1877
1878         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1879             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1880                     ist->file_index, ist->st->index);
1881             return AVERROR(EINVAL);
1882         }
1883         assert_codec_experimental(ist->st->codec, 0);
1884         assert_avoptions(ist->opts);
1885     }
1886
1887     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;
1888     ist->next_pts = AV_NOPTS_VALUE;
1889     init_pts_correction(&ist->pts_ctx);
1890     ist->is_start = 1;
1891
1892     return 0;
1893 }
1894
1895 static int transcode_init(OutputFile *output_files,
1896                           int nb_output_files,
1897                           InputFile *input_files,
1898                           int nb_input_files)
1899 {
1900     int ret = 0, i, j, k;
1901     AVFormatContext *os;
1902     AVCodecContext *codec, *icodec;
1903     OutputStream *ost;
1904     InputStream *ist;
1905     char error[1024];
1906     int want_sdp = 1;
1907
1908     /* init framerate emulation */
1909     for (i = 0; i < nb_input_files; i++) {
1910         InputFile *ifile = &input_files[i];
1911         if (ifile->rate_emu)
1912             for (j = 0; j < ifile->nb_streams; j++)
1913                 input_streams[j + ifile->ist_index].start = av_gettime();
1914     }
1915
1916     /* output stream init */
1917     for(i=0;i<nb_output_files;i++) {
1918         os = output_files[i].ctx;
1919         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1920             av_dump_format(os, i, os->filename, 1);
1921             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1922             return AVERROR(EINVAL);
1923         }
1924     }
1925
1926     /* for each output stream, we compute the right encoding parameters */
1927     for (i = 0; i < nb_output_streams; i++) {
1928         ost = &output_streams[i];
1929         os = output_files[ost->file_index].ctx;
1930         ist = &input_streams[ost->source_index];
1931
1932         codec = ost->st->codec;
1933         icodec = ist->st->codec;
1934
1935         ost->st->disposition = ist->st->disposition;
1936         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1937         codec->chroma_sample_location = icodec->chroma_sample_location;
1938
1939         if (ost->st->stream_copy) {
1940             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1941
1942             if (extra_size > INT_MAX) {
1943                 return AVERROR(EINVAL);
1944             }
1945
1946             /* if stream_copy is selected, no need to decode or encode */
1947             codec->codec_id = icodec->codec_id;
1948             codec->codec_type = icodec->codec_type;
1949
1950             if(!codec->codec_tag){
1951                 if(   !os->oformat->codec_tag
1952                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1953                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1954                     codec->codec_tag = icodec->codec_tag;
1955             }
1956
1957             codec->bit_rate = icodec->bit_rate;
1958             codec->rc_max_rate    = icodec->rc_max_rate;
1959             codec->rc_buffer_size = icodec->rc_buffer_size;
1960             codec->extradata= av_mallocz(extra_size);
1961             if (!codec->extradata) {
1962                 return AVERROR(ENOMEM);
1963             }
1964             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1965             codec->extradata_size= icodec->extradata_size;
1966             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){
1967                 codec->time_base = icodec->time_base;
1968                 codec->time_base.num *= icodec->ticks_per_frame;
1969                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1970                           codec->time_base.num, codec->time_base.den, INT_MAX);
1971             }else
1972                 codec->time_base = ist->st->time_base;
1973             switch(codec->codec_type) {
1974             case AVMEDIA_TYPE_AUDIO:
1975                 if(audio_volume != 256) {
1976                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1977                     exit_program(1);
1978                 }
1979                 codec->channel_layout = icodec->channel_layout;
1980                 codec->sample_rate = icodec->sample_rate;
1981                 codec->channels = icodec->channels;
1982                 codec->frame_size = icodec->frame_size;
1983                 codec->audio_service_type = icodec->audio_service_type;
1984                 codec->block_align= icodec->block_align;
1985                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1986                     codec->block_align= 0;
1987                 if(codec->codec_id == CODEC_ID_AC3)
1988                     codec->block_align= 0;
1989                 break;
1990             case AVMEDIA_TYPE_VIDEO:
1991                 codec->pix_fmt = icodec->pix_fmt;
1992                 codec->width = icodec->width;
1993                 codec->height = icodec->height;
1994                 codec->has_b_frames = icodec->has_b_frames;
1995                 if (!codec->sample_aspect_ratio.num) {
1996                     codec->sample_aspect_ratio =
1997                     ost->st->sample_aspect_ratio =
1998                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1999                         ist->st->codec->sample_aspect_ratio.num ?
2000                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2001                 }
2002                 break;
2003             case AVMEDIA_TYPE_SUBTITLE:
2004                 codec->width = icodec->width;
2005                 codec->height = icodec->height;
2006                 break;
2007             case AVMEDIA_TYPE_DATA:
2008                 break;
2009             default:
2010                 abort();
2011             }
2012         } else {
2013             if (!ost->enc)
2014                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2015             switch(codec->codec_type) {
2016             case AVMEDIA_TYPE_AUDIO:
2017                 ost->fifo= av_fifo_alloc(1024);
2018                 if (!ost->fifo) {
2019                     return AVERROR(ENOMEM);
2020                 }
2021                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2022                 if (!codec->sample_rate) {
2023                     codec->sample_rate = icodec->sample_rate;
2024                     if (icodec->lowres)
2025                         codec->sample_rate >>= icodec->lowres;
2026                 }
2027                 choose_sample_rate(ost->st, ost->enc);
2028                 codec->time_base = (AVRational){1, codec->sample_rate};
2029                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2030                     codec->sample_fmt = icodec->sample_fmt;
2031                 choose_sample_fmt(ost->st, ost->enc);
2032                 if (!codec->channels)
2033                     codec->channels = icodec->channels;
2034                 codec->channel_layout = icodec->channel_layout;
2035                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2036                     codec->channel_layout = 0;
2037                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2038                 icodec->request_channels = codec->channels;
2039                 ist->decoding_needed = 1;
2040                 ost->encoding_needed = 1;
2041                 ost->resample_sample_fmt  = icodec->sample_fmt;
2042                 ost->resample_sample_rate = icodec->sample_rate;
2043                 ost->resample_channels    = icodec->channels;
2044                 break;
2045             case AVMEDIA_TYPE_VIDEO:
2046                 if (codec->pix_fmt == PIX_FMT_NONE)
2047                     codec->pix_fmt = icodec->pix_fmt;
2048                 choose_pixel_fmt(ost->st, ost->enc);
2049
2050                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2051                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2052                     exit_program(1);
2053                 }
2054
2055                 if (!codec->width || !codec->height) {
2056                     codec->width  = icodec->width;
2057                     codec->height = icodec->height;
2058                 }
2059
2060                 ost->video_resample = codec->width   != icodec->width  ||
2061                                       codec->height  != icodec->height ||
2062                                       codec->pix_fmt != icodec->pix_fmt;
2063                 if (ost->video_resample) {
2064 #if !CONFIG_AVFILTER
2065                     avcodec_get_frame_defaults(&ost->pict_tmp);
2066                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2067                                        codec->width, codec->height)) {
2068                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2069                         exit_program(1);
2070                     }
2071                     ost->img_resample_ctx = sws_getContext(
2072                         icodec->width,
2073                         icodec->height,
2074                         icodec->pix_fmt,
2075                         codec->width,
2076                         codec->height,
2077                         codec->pix_fmt,
2078                         ost->sws_flags, NULL, NULL, NULL);
2079                     if (ost->img_resample_ctx == NULL) {
2080                         fprintf(stderr, "Cannot get resampling context\n");
2081                         exit_program(1);
2082                     }
2083 #endif
2084                     codec->bits_per_raw_sample= 0;
2085                 }
2086
2087                 ost->resample_height = icodec->height;
2088                 ost->resample_width  = icodec->width;
2089                 ost->resample_pix_fmt= icodec->pix_fmt;
2090                 ost->encoding_needed = 1;
2091                 ist->decoding_needed = 1;
2092
2093                 if (!ost->frame_rate.num)
2094                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2095                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2096                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2097                     ost->frame_rate = ost->enc->supported_framerates[idx];
2098                 }
2099                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2100
2101 #if CONFIG_AVFILTER
2102                 if (configure_video_filters(ist, ost)) {
2103                     fprintf(stderr, "Error opening filters!\n");
2104                     exit(1);
2105                 }
2106 #endif
2107                 break;
2108             case AVMEDIA_TYPE_SUBTITLE:
2109                 ost->encoding_needed = 1;
2110                 ist->decoding_needed = 1;
2111                 break;
2112             default:
2113                 abort();
2114                 break;
2115             }
2116             /* two pass mode */
2117             if (ost->encoding_needed &&
2118                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2119                 char logfilename[1024];
2120                 FILE *f;
2121
2122                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2123                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2124                          i);
2125                 if (codec->flags & CODEC_FLAG_PASS1) {
2126                     f = fopen(logfilename, "wb");
2127                     if (!f) {
2128                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2129                         exit_program(1);
2130                     }
2131                     ost->logfile = f;
2132                 } else {
2133                     char  *logbuffer;
2134                     size_t logbuffer_size;
2135                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2136                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2137                         exit_program(1);
2138                     }
2139                     codec->stats_in = logbuffer;
2140                 }
2141             }
2142         }
2143         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2144             int size= codec->width * codec->height;
2145             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2146         }
2147     }
2148
2149     if (!bit_buffer)
2150         bit_buffer = av_malloc(bit_buffer_size);
2151     if (!bit_buffer) {
2152         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2153                 bit_buffer_size);
2154         return AVERROR(ENOMEM);
2155     }
2156
2157     /* open each encoder */
2158     for (i = 0; i < nb_output_streams; i++) {
2159         ost = &output_streams[i];
2160         if (ost->encoding_needed) {
2161             AVCodec *codec = ost->enc;
2162             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2163             if (!codec) {
2164                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2165                          ost->st->codec->codec_id, ost->file_index, ost->index);
2166                 ret = AVERROR(EINVAL);
2167                 goto dump_format;
2168             }
2169             if (dec->subtitle_header) {
2170                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2171                 if (!ost->st->codec->subtitle_header) {
2172                     ret = AVERROR(ENOMEM);
2173                     goto dump_format;
2174                 }
2175                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2176                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2177             }
2178             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2179                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2180                         ost->file_index, ost->index);
2181                 ret = AVERROR(EINVAL);
2182                 goto dump_format;
2183             }
2184             assert_codec_experimental(ost->st->codec, 1);
2185             assert_avoptions(ost->opts);
2186             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2187                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2188                                              "It takes bits/s as argument, not kbits/s\n");
2189             extra_size += ost->st->codec->extradata_size;
2190
2191             if (ost->st->codec->me_threshold)
2192                 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2193         }
2194     }
2195
2196     /* init input streams */
2197     for (i = 0; i < nb_input_streams; i++)
2198         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2199             goto dump_format;
2200
2201     /* discard unused programs */
2202     for (i = 0; i < nb_input_files; i++) {
2203         InputFile *ifile = &input_files[i];
2204         for (j = 0; j < ifile->ctx->nb_programs; j++) {
2205             AVProgram *p = ifile->ctx->programs[j];
2206             int discard  = AVDISCARD_ALL;
2207
2208             for (k = 0; k < p->nb_stream_indexes; k++)
2209                 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2210                     discard = AVDISCARD_DEFAULT;
2211                     break;
2212                 }
2213             p->discard = discard;
2214         }
2215     }
2216
2217     /* open files and write file headers */
2218     for (i = 0; i < nb_output_files; i++) {
2219         os = output_files[i].ctx;
2220         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2221             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2222             ret = AVERROR(EINVAL);
2223             goto dump_format;
2224         }
2225         assert_avoptions(output_files[i].opts);
2226         if (strcmp(os->oformat->name, "rtp")) {
2227             want_sdp = 0;
2228         }
2229     }
2230
2231  dump_format:
2232     /* dump the file output parameters - cannot be done before in case
2233        of stream copy */
2234     for(i=0;i<nb_output_files;i++) {
2235         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2236     }
2237
2238     /* dump the stream mapping */
2239     if (verbose >= 0) {
2240         fprintf(stderr, "Stream mapping:\n");
2241         for (i = 0; i < nb_output_streams;i ++) {
2242             ost = &output_streams[i];
2243             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2244                     input_streams[ost->source_index].file_index,
2245                     input_streams[ost->source_index].st->index,
2246                     ost->file_index,
2247                     ost->index);
2248             if (ost->sync_ist != &input_streams[ost->source_index])
2249                 fprintf(stderr, " [sync #%d.%d]",
2250                         ost->sync_ist->file_index,
2251                         ost->sync_ist->st->index);
2252             if (ost->st->stream_copy)
2253                 fprintf(stderr, " (copy)");
2254             else
2255                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2256                         input_streams[ost->source_index].dec->name : "?",
2257                         ost->enc ? ost->enc->name : "?");
2258             fprintf(stderr, "\n");
2259         }
2260     }
2261
2262     if (ret) {
2263         fprintf(stderr, "%s\n", error);
2264         return ret;
2265     }
2266
2267     if (want_sdp) {
2268         print_sdp(output_files, nb_output_files);
2269     }
2270
2271     return 0;
2272 }
2273
2274 /*
2275  * The following code is the main loop of the file converter
2276  */
2277 static int transcode(OutputFile *output_files,
2278                      int nb_output_files,
2279                      InputFile *input_files,
2280                      int nb_input_files)
2281 {
2282     int ret, i;
2283     AVFormatContext *is, *os;
2284     OutputStream *ost;
2285     InputStream *ist;
2286     uint8_t *no_packet;
2287     int no_packet_count=0;
2288     int64_t timer_start;
2289
2290     if (!(no_packet = av_mallocz(nb_input_files)))
2291         exit_program(1);
2292
2293     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2294     if (ret < 0)
2295         goto fail;
2296
2297     if (verbose >= 0)
2298         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2299     term_init();
2300
2301     timer_start = av_gettime();
2302
2303     for(; received_sigterm == 0;) {
2304         int file_index, ist_index;
2305         AVPacket pkt;
2306         int64_t ipts_min;
2307         double opts_min;
2308
2309         ipts_min = INT64_MAX;
2310         opts_min= 1e100;
2311
2312         /* select the stream that we must read now by looking at the
2313            smallest output pts */
2314         file_index = -1;
2315         for (i = 0; i < nb_output_streams; i++) {
2316             OutputFile *of;
2317             int64_t ipts;
2318             double  opts;
2319             ost = &output_streams[i];
2320             of = &output_files[ost->file_index];
2321             os = output_files[ost->file_index].ctx;
2322             ist = &input_streams[ost->source_index];
2323             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2324                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2325                 continue;
2326             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2327             ipts = ist->pts;
2328             if (!input_files[ist->file_index].eof_reached){
2329                 if(ipts < ipts_min) {
2330                     ipts_min = ipts;
2331                     if(input_sync ) file_index = ist->file_index;
2332                 }
2333                 if(opts < opts_min) {
2334                     opts_min = opts;
2335                     if(!input_sync) file_index = ist->file_index;
2336                 }
2337             }
2338             if (ost->frame_number >= ost->max_frames) {
2339                 int j;
2340                 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2341                     output_streams[j].is_past_recording_time = 1;
2342                 continue;
2343             }
2344         }
2345         /* if none, if is finished */
2346         if (file_index < 0) {
2347             if(no_packet_count){
2348                 no_packet_count=0;
2349                 memset(no_packet, 0, nb_input_files);
2350                 usleep(10000);
2351                 continue;
2352             }
2353             break;
2354         }
2355
2356         /* read a frame from it and output it in the fifo */
2357         is = input_files[file_index].ctx;
2358         ret= av_read_frame(is, &pkt);
2359         if(ret == AVERROR(EAGAIN)){
2360             no_packet[file_index]=1;
2361             no_packet_count++;
2362             continue;
2363         }
2364         if (ret < 0) {
2365             input_files[file_index].eof_reached = 1;
2366             if (opt_shortest)
2367                 break;
2368             else
2369                 continue;
2370         }
2371
2372         no_packet_count=0;
2373         memset(no_packet, 0, nb_input_files);
2374
2375         if (do_pkt_dump) {
2376             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2377                              is->streams[pkt.stream_index]);
2378         }
2379         /* the following test is needed in case new streams appear
2380            dynamically in stream : we ignore them */
2381         if (pkt.stream_index >= input_files[file_index].nb_streams)
2382             goto discard_packet;
2383         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2384         ist = &input_streams[ist_index];
2385         if (ist->discard)
2386             goto discard_packet;
2387
2388         if (pkt.dts != AV_NOPTS_VALUE)
2389             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2390         if (pkt.pts != AV_NOPTS_VALUE)
2391             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2392
2393         if(pkt.pts != AV_NOPTS_VALUE)
2394             pkt.pts *= ist->ts_scale;
2395         if(pkt.dts != AV_NOPTS_VALUE)
2396             pkt.dts *= ist->ts_scale;
2397
2398 //        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);
2399         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2400             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2401             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2402             int64_t delta= pkt_dts - ist->next_pts;
2403             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2404                 input_files[ist->file_index].ts_offset -= delta;
2405                 if (verbose > 2)
2406                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2407                             delta, input_files[ist->file_index].ts_offset);
2408                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2409                 if(pkt.pts != AV_NOPTS_VALUE)
2410                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2411             }
2412         }
2413
2414         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2415         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2416
2417             if (verbose >= 0)
2418                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2419                         ist->file_index, ist->st->index);
2420             if (exit_on_error)
2421                 exit_program(1);
2422             av_free_packet(&pkt);
2423             continue;
2424         }
2425
2426     discard_packet:
2427         av_free_packet(&pkt);
2428
2429         /* dump report by using the output first video and audio streams */
2430         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2431     }
2432
2433     /* at the end of stream, we must flush the decoder buffers */
2434     for (i = 0; i < nb_input_streams; i++) {
2435         ist = &input_streams[i];
2436         if (ist->decoding_needed) {
2437             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2438         }
2439     }
2440     flush_encoders(output_streams, nb_output_streams);
2441
2442     term_exit();
2443
2444     /* write the trailer if needed and close file */
2445     for(i=0;i<nb_output_files;i++) {
2446         os = output_files[i].ctx;
2447         av_write_trailer(os);
2448     }
2449
2450     /* dump report by using the first video and audio streams */
2451     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2452
2453     /* close each encoder */
2454     for (i = 0; i < nb_output_streams; i++) {
2455         ost = &output_streams[i];
2456         if (ost->encoding_needed) {
2457             av_freep(&ost->st->codec->stats_in);
2458             avcodec_close(ost->st->codec);
2459         }
2460 #if CONFIG_AVFILTER
2461         avfilter_graph_free(&ost->graph);
2462 #endif
2463     }
2464
2465     /* close each decoder */
2466     for (i = 0; i < nb_input_streams; i++) {
2467         ist = &input_streams[i];
2468         if (ist->decoding_needed) {
2469             avcodec_close(ist->st->codec);
2470         }
2471     }
2472
2473     /* finished ! */
2474     ret = 0;
2475
2476  fail:
2477     av_freep(&bit_buffer);
2478     av_freep(&no_packet);
2479
2480     if (output_streams) {
2481         for (i = 0; i < nb_output_streams; i++) {
2482             ost = &output_streams[i];
2483             if (ost) {
2484                 if (ost->st->stream_copy)
2485                     av_freep(&ost->st->codec->extradata);
2486                 if (ost->logfile) {
2487                     fclose(ost->logfile);
2488                     ost->logfile = NULL;
2489                 }
2490                 av_fifo_free(ost->fifo); /* works even if fifo is not
2491                                              initialized but set to zero */
2492                 av_freep(&ost->st->codec->subtitle_header);
2493                 av_free(ost->pict_tmp.data[0]);
2494                 av_free(ost->forced_kf_pts);
2495                 if (ost->video_resample)
2496                     sws_freeContext(ost->img_resample_ctx);
2497                 if (ost->resample)
2498                     audio_resample_close(ost->resample);
2499                 if (ost->reformat_ctx)
2500                     av_audio_convert_free(ost->reformat_ctx);
2501                 av_dict_free(&ost->opts);
2502             }
2503         }
2504     }
2505     return ret;
2506 }
2507
2508 static int opt_verbose(const char *opt, const char *arg)
2509 {
2510     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2511     return 0;
2512 }
2513
2514 static double parse_frame_aspect_ratio(const char *arg)
2515 {
2516     int x = 0, y = 0;
2517     double ar = 0;
2518     const char *p;
2519     char *end;
2520
2521     p = strchr(arg, ':');
2522     if (p) {
2523         x = strtol(arg, &end, 10);
2524         if (end == p)
2525             y = strtol(end+1, &end, 10);
2526         if (x > 0 && y > 0)
2527             ar = (double)x / (double)y;
2528     } else
2529         ar = strtod(arg, NULL);
2530
2531     if (!ar) {
2532         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2533         exit_program(1);
2534     }
2535     return ar;
2536 }
2537
2538 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2539 {
2540     return parse_option(o, "codec:a", arg, options);
2541 }
2542
2543 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2544 {
2545     return parse_option(o, "codec:v", arg, options);
2546 }
2547
2548 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2549 {
2550     return parse_option(o, "codec:s", arg, options);
2551 }
2552
2553 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2554 {
2555     return parse_option(o, "codec:d", arg, options);
2556 }
2557
2558 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2559 {
2560     StreamMap *m = NULL;
2561     int i, negative = 0, file_idx;
2562     int sync_file_idx = -1, sync_stream_idx;
2563     char *p, *sync;
2564     char *map;
2565
2566     if (*arg == '-') {
2567         negative = 1;
2568         arg++;
2569     }
2570     map = av_strdup(arg);
2571
2572     /* parse sync stream first, just pick first matching stream */
2573     if (sync = strchr(map, ',')) {
2574         *sync = 0;
2575         sync_file_idx = strtol(sync + 1, &sync, 0);
2576         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2577             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2578             exit_program(1);
2579         }
2580         if (*sync)
2581             sync++;
2582         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2583             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2584                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2585                 sync_stream_idx = i;
2586                 break;
2587             }
2588         if (i == input_files[sync_file_idx].nb_streams) {
2589             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2590                                        "match any streams.\n", arg);
2591             exit_program(1);
2592         }
2593     }
2594
2595
2596     file_idx = strtol(map, &p, 0);
2597     if (file_idx >= nb_input_files || file_idx < 0) {
2598         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2599         exit_program(1);
2600     }
2601     if (negative)
2602         /* disable some already defined maps */
2603         for (i = 0; i < o->nb_stream_maps; i++) {
2604             m = &o->stream_maps[i];
2605             if (check_stream_specifier(input_files[m->file_index].ctx,
2606                                        input_files[m->file_index].ctx->streams[m->stream_index],
2607                                        *p == ':' ? p + 1 : p) > 0)
2608                 m->disabled = 1;
2609         }
2610     else
2611         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2612             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2613                         *p == ':' ? p + 1 : p) <= 0)
2614                 continue;
2615             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2616                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2617             m = &o->stream_maps[o->nb_stream_maps - 1];
2618
2619             m->file_index   = file_idx;
2620             m->stream_index = i;
2621
2622             if (sync_file_idx >= 0) {
2623                 m->sync_file_index   = sync_file_idx;
2624                 m->sync_stream_index = sync_stream_idx;
2625             } else {
2626                 m->sync_file_index   = file_idx;
2627                 m->sync_stream_index = i;
2628             }
2629         }
2630
2631     if (!m) {
2632         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2633         exit_program(1);
2634     }
2635
2636     av_freep(&map);
2637     return 0;
2638 }
2639
2640 static void parse_meta_type(char *arg, char *type, int *index)
2641 {
2642     if (*arg) {
2643         *type = *arg;
2644         switch (*arg) {
2645         case 'g':
2646             break;
2647         case 's':
2648         case 'c':
2649         case 'p':
2650             if (*(++arg) == ':')
2651                 *index = strtol(++arg, NULL, 0);
2652             break;
2653         default:
2654             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2655             exit_program(1);
2656         }
2657     } else
2658         *type = 'g';
2659 }
2660
2661 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2662 {
2663     MetadataMap *m, *m1;
2664     char *p;
2665
2666     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2667                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2668
2669     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2670     m->file = strtol(arg, &p, 0);
2671     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2672
2673     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2674     if (p = strchr(opt, ':'))
2675         parse_meta_type(p + 1, &m1->type, &m1->index);
2676     else
2677         m1->type = 'g';
2678
2679     if (m->type == 'g' || m1->type == 'g')
2680         o->metadata_global_manual = 1;
2681     if (m->type == 's' || m1->type == 's')
2682         o->metadata_streams_manual = 1;
2683     if (m->type == 'c' || m1->type == 'c')
2684         o->metadata_chapters_manual = 1;
2685
2686     return 0;
2687 }
2688
2689 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2690 {
2691     const char *codec_string = encoder ? "encoder" : "decoder";
2692     AVCodec *codec;
2693
2694     if(!name)
2695         return CODEC_ID_NONE;
2696     codec = encoder ?
2697         avcodec_find_encoder_by_name(name) :
2698         avcodec_find_decoder_by_name(name);
2699     if(!codec) {
2700         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2701         exit_program(1);
2702     }
2703     if(codec->type != type) {
2704         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2705         exit_program(1);
2706     }
2707     return codec->id;
2708 }
2709
2710 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2711 {
2712     char *codec_name = NULL;
2713
2714     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2715
2716     if (!codec_name) {
2717         if (s->oformat) {
2718             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2719             return avcodec_find_encoder(st->codec->codec_id);
2720         }
2721     } else if (!strcmp(codec_name, "copy"))
2722         st->stream_copy = 1;
2723     else {
2724         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2725         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2726                             avcodec_find_decoder_by_name(codec_name);
2727     }
2728
2729     return NULL;
2730 }
2731
2732 /**
2733  * Add all the streams from the given input file to the global
2734  * list of input streams.
2735  */
2736 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2737 {
2738     int i, rfps, rfps_base;
2739
2740     for (i = 0; i < ic->nb_streams; i++) {
2741         AVStream *st = ic->streams[i];
2742         AVCodecContext *dec = st->codec;
2743         InputStream *ist;
2744         double scale = 1.0;
2745
2746         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2747         ist = &input_streams[nb_input_streams - 1];
2748         ist->st = st;
2749         ist->file_index = nb_input_files;
2750         ist->discard = 1;
2751         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2752
2753         MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2754         ist->ts_scale = scale;
2755
2756         ist->dec = choose_codec(o, ic, st, dec->codec_type);
2757         if (!ist->dec)
2758             ist->dec = avcodec_find_decoder(dec->codec_id);
2759
2760         switch (dec->codec_type) {
2761         case AVMEDIA_TYPE_AUDIO:
2762             if (o->audio_disable)
2763                 st->discard= AVDISCARD_ALL;
2764             break;
2765         case AVMEDIA_TYPE_VIDEO:
2766             rfps      = ic->streams[i]->r_frame_rate.num;
2767             rfps_base = ic->streams[i]->r_frame_rate.den;
2768             if (dec->lowres) {
2769                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2770                 dec->height >>= dec->lowres;
2771                 dec->width  >>= dec->lowres;
2772             }
2773
2774             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2775
2776                 if (verbose >= 0)
2777                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2778                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2779
2780                     (float)rfps / rfps_base, rfps, rfps_base);
2781             }
2782
2783             if (o->video_disable)
2784                 st->discard= AVDISCARD_ALL;
2785             else if(video_discard)
2786                 st->discard= video_discard;
2787             break;
2788         case AVMEDIA_TYPE_DATA:
2789             break;
2790         case AVMEDIA_TYPE_SUBTITLE:
2791             if (o->subtitle_disable)
2792                 st->discard = AVDISCARD_ALL;
2793             break;
2794         case AVMEDIA_TYPE_ATTACHMENT:
2795         case AVMEDIA_TYPE_UNKNOWN:
2796             break;
2797         default:
2798             abort();
2799         }
2800     }
2801 }
2802
2803 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2804 {
2805     AVFormatContext *ic;
2806     AVInputFormat *file_iformat = NULL;
2807     int err, i, ret;
2808     int64_t timestamp;
2809     uint8_t buf[128];
2810     AVDictionary **opts;
2811     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2812
2813     if (o->format) {
2814         if (!(file_iformat = av_find_input_format(o->format))) {
2815             fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2816             exit_program(1);
2817         }
2818     }
2819
2820     if (!strcmp(filename, "-"))
2821         filename = "pipe:";
2822
2823     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2824                     !strcmp(filename, "/dev/stdin");
2825
2826     /* get default parameters from command line */
2827     ic = avformat_alloc_context();
2828     if (!ic) {
2829         print_error(filename, AVERROR(ENOMEM));
2830         exit_program(1);
2831     }
2832     if (o->nb_audio_sample_rate) {
2833         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2834         av_dict_set(&format_opts, "sample_rate", buf, 0);
2835     }
2836     if (o->nb_audio_channels) {
2837         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2838         av_dict_set(&format_opts, "channels", buf, 0);
2839     }
2840     if (o->nb_frame_rates) {
2841         av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2842     }
2843     if (o->nb_frame_sizes) {
2844         av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2845     }
2846     if (o->nb_frame_pix_fmts)
2847         av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2848
2849     ic->flags |= AVFMT_FLAG_NONBLOCK;
2850
2851     /* open the input file with generic libav function */
2852     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2853     if (err < 0) {
2854         print_error(filename, err);
2855         exit_program(1);
2856     }
2857     assert_avoptions(format_opts);
2858
2859     /* apply forced codec ids */
2860     for (i = 0; i < ic->nb_streams; i++)
2861         choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2862
2863     /* Set AVCodecContext options for avformat_find_stream_info */
2864     opts = setup_find_stream_info_opts(ic, codec_opts);
2865     orig_nb_streams = ic->nb_streams;
2866
2867     /* If not enough info to get the stream parameters, we decode the
2868        first frames to get it. (used in mpeg case for example) */
2869     ret = avformat_find_stream_info(ic, opts);
2870     if (ret < 0 && verbose >= 0) {
2871         fprintf(stderr, "%s: could not find codec parameters\n", filename);
2872         av_close_input_file(ic);
2873         exit_program(1);
2874     }
2875
2876     timestamp = o->start_time;
2877     /* add the stream start time */
2878     if (ic->start_time != AV_NOPTS_VALUE)
2879         timestamp += ic->start_time;
2880
2881     /* if seeking requested, we execute it */
2882     if (o->start_time != 0) {
2883         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2884         if (ret < 0) {
2885             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2886                     filename, (double)timestamp / AV_TIME_BASE);
2887         }
2888     }
2889
2890     /* update the current parameters so that they match the one of the input stream */
2891     add_input_streams(o, ic);
2892
2893     /* dump the file content */
2894     if (verbose >= 0)
2895         av_dump_format(ic, nb_input_files, filename, 0);
2896
2897     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2898     input_files[nb_input_files - 1].ctx        = ic;
2899     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
2900     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
2901     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
2902
2903     for (i = 0; i < orig_nb_streams; i++)
2904         av_dict_free(&opts[i]);
2905     av_freep(&opts);
2906
2907     reset_options(o);
2908     return 0;
2909 }
2910
2911 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2912                                     AVCodecContext *avctx)
2913 {
2914     char *p;
2915     int n = 1, i;
2916     int64_t t;
2917
2918     for (p = kf; *p; p++)
2919         if (*p == ',')
2920             n++;
2921     ost->forced_kf_count = n;
2922     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2923     if (!ost->forced_kf_pts) {
2924         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2925         exit_program(1);
2926     }
2927     for (i = 0; i < n; i++) {
2928         p = i ? strchr(p, ',') + 1 : kf;
2929         t = parse_time_or_die("force_key_frames", p, 1);
2930         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2931     }
2932 }
2933
2934 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
2935 {
2936     OutputStream *ost;
2937     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
2938     int idx      = oc->nb_streams - 1;
2939     int64_t max_frames = INT64_MAX;
2940     char *bsf = NULL, *next, *codec_tag = NULL;
2941     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
2942     double qscale = -1;
2943
2944     if (!st) {
2945         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
2946         exit_program(1);
2947     }
2948
2949     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
2950                                 nb_output_streams + 1);
2951     ost = &output_streams[nb_output_streams - 1];
2952     ost->file_index = nb_output_files;
2953     ost->index = idx;
2954     ost->st    = st;
2955     st->codec->codec_type = type;
2956     ost->enc = choose_codec(o, oc, st, type);
2957     if (ost->enc) {
2958         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
2959     }
2960
2961     avcodec_get_context_defaults3(st->codec, ost->enc);
2962     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
2963
2964     MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
2965     ost->max_frames = max_frames;
2966
2967     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
2968     while (bsf) {
2969         if (next = strchr(bsf, ','))
2970             *next++ = 0;
2971         if (!(bsfc = av_bitstream_filter_init(bsf))) {
2972             av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
2973             exit_program(1);
2974         }
2975         if (bsfc_prev)
2976             bsfc_prev->next = bsfc;
2977         else
2978             ost->bitstream_filters = bsfc;
2979
2980         bsfc_prev = bsfc;
2981         bsf       = next;
2982     }
2983
2984     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
2985     if (codec_tag) {
2986         uint32_t tag = strtol(codec_tag, &next, 0);
2987         if (*next)
2988             tag = AV_RL32(codec_tag);
2989         st->codec->codec_tag = tag;
2990     }
2991
2992     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
2993     if (qscale >= 0 || same_quant) {
2994         st->codec->flags |= CODEC_FLAG_QSCALE;
2995         st->codec->global_quality = FF_QP2LAMBDA * qscale;
2996     }
2997
2998     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2999     return ost;
3000 }
3001
3002 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3003 {
3004     int i;
3005     const char *p = str;
3006     for(i = 0;; i++) {
3007         dest[i] = atoi(p);
3008         if(i == 63)
3009             break;
3010         p = strchr(p, ',');
3011         if(!p) {
3012             fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3013             exit_program(1);
3014         }
3015         p++;
3016     }
3017 }
3018
3019 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3020 {
3021     AVStream *st;
3022     OutputStream *ost;
3023     AVCodecContext *video_enc;
3024
3025     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3026     st  = ost->st;
3027     video_enc = st->codec;
3028
3029     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3030         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3031     }
3032
3033     if (!st->stream_copy) {
3034         const char *p = NULL;
3035         char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3036         char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3037         char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3038         int i, force_fps = 0, top_field_first = -1;
3039
3040         MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3041         if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3042             av_log(NULL, AV_LOG_ERROR, "Invalid framerate value: %s\n", frame_rate);
3043             exit_program(1);
3044         }
3045
3046         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3047         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3048             av_log(NULL, AV_LOG_ERROR, "Invalid frame size: %s.\n", frame_size);
3049             exit_program(1);
3050         }
3051
3052         MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3053         if (frame_aspect_ratio)
3054             ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3055
3056         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3057         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3058             av_log(NULL, AV_LOG_ERROR, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3059             exit_program(1);
3060         }
3061         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3062
3063         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3064         if (intra_matrix) {
3065             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3066                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for intra matrix.\n");
3067                 exit_program(1);
3068             }
3069             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3070         }
3071         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3072         if (inter_matrix) {
3073             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3074                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for inter matrix.\n");
3075                 exit_program(1);
3076             }
3077             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3078         }
3079
3080         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3081         for(i=0; p; i++){
3082             int start, end, q;
3083             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3084             if(e!=3){
3085                 fprintf(stderr, "error parsing rc_override\n");
3086                 exit_program(1);
3087             }
3088             video_enc->rc_override=
3089                 av_realloc(video_enc->rc_override,
3090                            sizeof(RcOverride)*(i+1));
3091             video_enc->rc_override[i].start_frame= start;
3092             video_enc->rc_override[i].end_frame  = end;
3093             if(q>0){
3094                 video_enc->rc_override[i].qscale= q;
3095                 video_enc->rc_override[i].quality_factor= 1.0;
3096             }
3097             else{
3098                 video_enc->rc_override[i].qscale= 0;
3099                 video_enc->rc_override[i].quality_factor= -q/100.0;
3100             }
3101             p= strchr(p, '/');
3102             if(p) p++;
3103         }
3104         video_enc->rc_override_count=i;
3105         if (!video_enc->rc_initial_buffer_occupancy)
3106             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3107         video_enc->intra_dc_precision= intra_dc_precision - 8;
3108
3109         /* two pass mode */
3110         if (do_pass) {
3111             if (do_pass == 1) {
3112                 video_enc->flags |= CODEC_FLAG_PASS1;
3113             } else {
3114                 video_enc->flags |= CODEC_FLAG_PASS2;
3115             }
3116         }
3117
3118         MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3119         if (forced_key_frames)
3120             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3121
3122         MATCH_PER_STREAM_OPT(force_fps, i, force_fps, oc, st);
3123         ost->force_fps = force_fps;
3124
3125         MATCH_PER_STREAM_OPT(top_field_first, i, top_field_first, oc, st);
3126         ost->top_field_first = top_field_first;
3127
3128 #if CONFIG_AVFILTER
3129         MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3130         if (filters)
3131             ost->avfilter = av_strdup(filters);
3132 #endif
3133     }
3134
3135     return ost;
3136 }
3137
3138 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3139 {
3140     AVStream *st;
3141     OutputStream *ost;
3142     AVCodecContext *audio_enc;
3143
3144     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3145     st  = ost->st;
3146
3147     audio_enc = st->codec;
3148     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3149
3150     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3151         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3152     }
3153     if (!st->stream_copy) {
3154         char *sample_fmt = NULL;
3155
3156         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3157
3158         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3159         if (sample_fmt &&
3160             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3161             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", sample_fmt);
3162             exit_program(1);
3163         }
3164
3165         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3166     }
3167
3168     return ost;
3169 }
3170
3171 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3172 {
3173     AVStream *st;
3174     OutputStream *ost;
3175     AVCodecContext *data_enc;
3176
3177     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3178     st  = ost->st;
3179     data_enc = st->codec;
3180     if (!st->stream_copy) {
3181         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3182         exit_program(1);
3183     }
3184
3185     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3186         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3187     }
3188
3189     return ost;
3190 }
3191
3192 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3193 {
3194     AVStream *st;
3195     OutputStream *ost;
3196     AVCodecContext *subtitle_enc;
3197
3198     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3199     st  = ost->st;
3200     subtitle_enc = st->codec;
3201
3202     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3203
3204     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3205         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3206     }
3207
3208     return ost;
3209 }
3210
3211 /* arg format is "output-stream-index:streamid-value". */
3212 static int opt_streamid(const char *opt, const char *arg)
3213 {
3214     int idx;
3215     char *p;
3216     char idx_str[16];
3217
3218     av_strlcpy(idx_str, arg, sizeof(idx_str));
3219     p = strchr(idx_str, ':');
3220     if (!p) {
3221         fprintf(stderr,
3222                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3223                 arg, opt);
3224         exit_program(1);
3225     }
3226     *p++ = '\0';
3227     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3228     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3229     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3230     return 0;
3231 }
3232
3233 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3234 {
3235     AVFormatContext *is = ifile->ctx;
3236     AVFormatContext *os = ofile->ctx;
3237     int i;
3238
3239     for (i = 0; i < is->nb_chapters; i++) {
3240         AVChapter *in_ch = is->chapters[i], *out_ch;
3241         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
3242                                       AV_TIME_BASE_Q, in_ch->time_base);
3243         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3244                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3245
3246
3247         if (in_ch->end < ts_off)
3248             continue;
3249         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3250             break;
3251
3252         out_ch = av_mallocz(sizeof(AVChapter));
3253         if (!out_ch)
3254             return AVERROR(ENOMEM);
3255
3256         out_ch->id        = in_ch->id;
3257         out_ch->time_base = in_ch->time_base;
3258         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3259         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3260
3261         if (copy_metadata)
3262             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3263
3264         os->nb_chapters++;
3265         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3266         if (!os->chapters)
3267             return AVERROR(ENOMEM);
3268         os->chapters[os->nb_chapters - 1] = out_ch;
3269     }
3270     return 0;
3271 }
3272
3273 static int read_avserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3274 {
3275     int i, err;
3276     AVFormatContext *ic = NULL;
3277
3278     err = avformat_open_input(&ic, filename, NULL, NULL);
3279     if (err < 0)
3280         return err;
3281     /* copy stream format */
3282     for(i=0;i<ic->nb_streams;i++) {
3283         AVStream *st;
3284         OutputStream *ost;
3285         AVCodec *codec;
3286
3287         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3288         ost   = new_output_stream(o, s, codec->type);
3289         st    = ost->st;
3290
3291         // FIXME: a more elegant solution is needed
3292         memcpy(st, ic->streams[i], sizeof(AVStream));
3293         st->info = NULL;
3294         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3295
3296         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3297             choose_sample_fmt(st, codec);
3298         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3299             choose_pixel_fmt(st, codec);
3300     }
3301
3302     av_close_input_file(ic);
3303     return 0;
3304 }
3305
3306 static void opt_output_file(void *optctx, const char *filename)
3307 {
3308     OptionsContext *o = optctx;
3309     AVFormatContext *oc;
3310     int i, err;
3311     AVOutputFormat *file_oformat;
3312     OutputStream *ost;
3313     InputStream  *ist;
3314
3315     if (!strcmp(filename, "-"))
3316         filename = "pipe:";
3317
3318     oc = avformat_alloc_context();
3319     if (!oc) {
3320         print_error(filename, AVERROR(ENOMEM));
3321         exit_program(1);
3322     }
3323
3324     if (o->format) {
3325         file_oformat = av_guess_format(o->format, NULL, NULL);
3326         if (!file_oformat) {
3327             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", o->format);
3328             exit_program(1);
3329         }
3330     } else {
3331         file_oformat = av_guess_format(NULL, filename, NULL);
3332         if (!file_oformat) {
3333             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3334                     filename);
3335             exit_program(1);
3336         }
3337     }
3338
3339     oc->oformat = file_oformat;
3340     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3341
3342     if (!strcmp(file_oformat->name, "ffm") &&
3343         av_strstart(filename, "http:", NULL)) {
3344         /* special case for files sent to avserver: we get the stream
3345            parameters from avserver */
3346         int err = read_avserver_streams(o, oc, filename);
3347         if (err < 0) {
3348             print_error(filename, err);
3349             exit_program(1);
3350         }
3351     } else if (!o->nb_stream_maps) {
3352         /* pick the "best" stream of each type */
3353 #define NEW_STREAM(type, index)\
3354         if (index >= 0) {\
3355             ost = new_ ## type ## _stream(o, oc);\
3356             ost->source_index = index;\
3357             ost->sync_ist     = &input_streams[index];\
3358             input_streams[index].discard = 0;\
3359         }
3360
3361         /* video: highest resolution */
3362         if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3363             int area = 0, idx = -1;
3364             for (i = 0; i < nb_input_streams; i++) {
3365                 ist = &input_streams[i];
3366                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3367                     ist->st->codec->width * ist->st->codec->height > area) {
3368                     area = ist->st->codec->width * ist->st->codec->height;
3369                     idx = i;
3370                 }
3371             }
3372             NEW_STREAM(video, idx);
3373         }
3374
3375         /* audio: most channels */
3376         if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3377             int channels = 0, idx = -1;
3378             for (i = 0; i < nb_input_streams; i++) {
3379                 ist = &input_streams[i];
3380                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3381                     ist->st->codec->channels > channels) {
3382                     channels = ist->st->codec->channels;
3383                     idx = i;
3384                 }
3385             }
3386             NEW_STREAM(audio, idx);
3387         }
3388
3389         /* subtitles: pick first */
3390         if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3391             for (i = 0; i < nb_input_streams; i++)
3392                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3393                     NEW_STREAM(subtitle, i);
3394                     break;
3395                 }
3396         }
3397         /* do something with data? */
3398     } else {
3399         for (i = 0; i < o->nb_stream_maps; i++) {
3400             StreamMap *map = &o->stream_maps[i];
3401
3402             if (map->disabled)
3403                 continue;
3404
3405             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3406             switch (ist->st->codec->codec_type) {
3407             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
3408             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(o, oc);    break;
3409             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3410             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(o, oc);     break;
3411             default:
3412                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3413                        map->file_index, map->stream_index);
3414                 exit_program(1);
3415             }
3416
3417             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3418             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3419                                            map->sync_stream_index];
3420             ist->discard = 0;
3421         }
3422     }
3423
3424     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3425     output_files[nb_output_files - 1].ctx       = oc;
3426     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3427     output_files[nb_output_files - 1].recording_time = o->recording_time;
3428     output_files[nb_output_files - 1].start_time     = o->start_time;
3429     output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3430     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3431
3432     /* check filename in case of an image number is expected */
3433     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3434         if (!av_filename_number_test(oc->filename)) {
3435             print_error(oc->filename, AVERROR(EINVAL));
3436             exit_program(1);
3437         }
3438     }
3439
3440     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3441         /* test if it already exists to avoid loosing precious files */
3442         if (!file_overwrite &&
3443             (strchr(filename, ':') == NULL ||
3444              filename[1] == ':' ||
3445              av_strstart(filename, "file:", NULL))) {
3446             if (avio_check(filename, 0) == 0) {
3447                 if (!using_stdin) {
3448                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3449                     fflush(stderr);
3450                     if (!read_yesno()) {
3451                         fprintf(stderr, "Not overwriting - exiting\n");
3452                         exit_program(1);
3453                     }
3454                 }
3455                 else {
3456                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3457                     exit_program(1);
3458                 }
3459             }
3460         }
3461
3462         /* open the file */
3463         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3464             print_error(filename, err);
3465             exit_program(1);
3466         }
3467     }
3468
3469     oc->preload   = (int)(o->mux_preload   * AV_TIME_BASE);
3470     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
3471     oc->flags |= AVFMT_FLAG_NONBLOCK;
3472
3473     /* copy chapters */
3474     if (o->chapters_input_file >= nb_input_files) {
3475         if (o->chapters_input_file == INT_MAX) {
3476             /* copy chapters from the first input file that has them*/
3477             o->chapters_input_file = -1;
3478             for (i = 0; i < nb_input_files; i++)
3479                 if (input_files[i].ctx->nb_chapters) {
3480                     o->chapters_input_file = i;
3481                     break;
3482                 }
3483         } else {
3484             av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3485                    o->chapters_input_file);
3486             exit_program(1);
3487         }
3488     }
3489     if (o->chapters_input_file >= 0)
3490         copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
3491                       o->metadata_chapters_manual);
3492
3493     /* copy metadata */
3494     for (i = 0; i < o->nb_meta_data_maps; i++) {
3495         AVFormatContext *files[2];
3496         AVDictionary    **meta[2];
3497         int j;
3498
3499 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3500         if ((index) < 0 || (index) >= (nb_elems)) {\
3501             av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3502                      (desc), (index));\
3503             exit_program(1);\
3504         }
3505
3506         int in_file_index = o->meta_data_maps[i][1].file;
3507         if (in_file_index < 0)
3508             continue;
3509         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3510
3511         files[0] = oc;
3512         files[1] = input_files[in_file_index].ctx;
3513
3514         for (j = 0; j < 2; j++) {
3515             MetadataMap *map = &o->meta_data_maps[i][j];
3516
3517             switch (map->type) {
3518             case 'g':
3519                 meta[j] = &files[j]->metadata;
3520                 break;
3521             case 's':
3522                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3523                 meta[j] = &files[j]->streams[map->index]->metadata;
3524                 break;
3525             case 'c':
3526                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3527                 meta[j] = &files[j]->chapters[map->index]->metadata;
3528                 break;
3529             case 'p':
3530                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3531                 meta[j] = &files[j]->programs[map->index]->metadata;
3532                 break;
3533             }
3534         }
3535
3536         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3537     }
3538
3539     /* copy global metadata by default */
3540     if (!o->metadata_global_manual && nb_input_files)
3541         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3542                      AV_DICT_DONT_OVERWRITE);
3543     if (!o->metadata_streams_manual)
3544         for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
3545             InputStream *ist = &input_streams[output_streams[i].source_index];
3546             av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
3547         }
3548
3549     /* process manually set metadata */
3550     for (i = 0; i < o->nb_metadata; i++) {
3551         AVDictionary **m;
3552         char type, *val;
3553         int index = 0;
3554
3555         val = strchr(o->metadata[i].u.str, '=');
3556         if (!val) {
3557             av_log(NULL, AV_LOG_ERROR, "No '=' character in metadata string %s.\n",
3558                    o->metadata[i].u.str);
3559             exit_program(1);
3560         }
3561         *val++ = 0;
3562
3563         parse_meta_type(o->metadata[i].specifier, &type, &index);
3564         switch (type) {
3565         case 'g':
3566             m = &oc->metadata;
3567             break;
3568         case 's':
3569             if (index < 0 || index >= oc->nb_streams) {
3570                 av_log(NULL, AV_LOG_ERROR, "Invalid stream index %d in metadata specifier.\n", index);
3571                 exit_program(1);
3572             }
3573             m = &oc->streams[i]->metadata;
3574             break;
3575         case 'c':
3576             if (index < 0 || index >= oc->nb_chapters) {
3577                 av_log(NULL, AV_LOG_ERROR, "Invalid chapter index %d in metadata specifier.\n", index);
3578                 exit_program(1);
3579             }
3580             m = &oc->chapters[i]->metadata;
3581             break;
3582         default:
3583             av_log(NULL, AV_LOG_ERROR, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
3584             exit_program(1);
3585         }
3586
3587         av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
3588     }
3589
3590     av_freep(&streamid_map);
3591     nb_streamid_map = 0;
3592
3593     reset_options(o);
3594 }
3595
3596 /* same option as mencoder */
3597 static int opt_pass(const char *opt, const char *arg)
3598 {
3599     do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
3600     return 0;
3601 }
3602
3603 static int64_t getutime(void)
3604 {
3605 #if HAVE_GETRUSAGE
3606     struct rusage rusage;
3607
3608     getrusage(RUSAGE_SELF, &rusage);
3609     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3610 #elif HAVE_GETPROCESSTIMES
3611     HANDLE proc;
3612     FILETIME c, e, k, u;
3613     proc = GetCurrentProcess();
3614     GetProcessTimes(proc, &c, &e, &k, &u);
3615     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3616 #else
3617     return av_gettime();
3618 #endif
3619 }
3620
3621 static int64_t getmaxrss(void)
3622 {
3623 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3624     struct rusage rusage;
3625     getrusage(RUSAGE_SELF, &rusage);
3626     return (int64_t)rusage.ru_maxrss * 1024;
3627 #elif HAVE_GETPROCESSMEMORYINFO
3628     HANDLE proc;
3629     PROCESS_MEMORY_COUNTERS memcounters;
3630     proc = GetCurrentProcess();
3631     memcounters.cb = sizeof(memcounters);
3632     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3633     return memcounters.PeakPagefileUsage;
3634 #else
3635     return 0;
3636 #endif
3637 }
3638
3639 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
3640 {
3641     return parse_option(o, "q:a", arg, options);
3642 }
3643
3644 static void show_usage(void)
3645 {
3646     printf("Hyper fast Audio and Video encoder\n");
3647     printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
3648     printf("\n");
3649 }
3650
3651 static void show_help(void)
3652 {
3653     AVCodec *c;
3654     AVOutputFo