dcc6daaa86bf1690dfeeb1029114c5c5332934a9
[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 #if CONFIG_AVFILTER
110 static char *vfilters = NULL;
111 #endif
112
113 static int file_overwrite = 0;
114 static int do_benchmark = 0;
115 static int do_hex_dump = 0;
116 static int do_pkt_dump = 0;
117 static int do_pass = 0;
118 static char *pass_logfilename_prefix = NULL;
119 static int video_sync_method= -1;
120 static int audio_sync_method= 0;
121 static float audio_drift_threshold= 0.1;
122 static int copy_ts= 0;
123 static int copy_tb;
124 static int opt_shortest = 0;
125 static char *vstats_filename;
126 static FILE *vstats_file;
127 static int copy_initial_nonkeyframes = 0;
128
129 static int audio_volume = 256;
130
131 static int exit_on_error = 0;
132 static int using_stdin = 0;
133 static int verbose = 1;
134 static int64_t video_size = 0;
135 static int64_t audio_size = 0;
136 static int64_t extra_size = 0;
137 static int nb_frames_dup = 0;
138 static int nb_frames_drop = 0;
139 static int input_sync;
140
141 static float dts_delta_threshold = 10;
142
143 static uint8_t *audio_buf;
144 static uint8_t *audio_out;
145 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
146
147 static short *samples;
148
149 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
150
151 typedef struct InputStream {
152     int file_index;
153     AVStream *st;
154     int discard;             /* true if stream data should be discarded */
155     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
156     AVCodec *dec;
157
158     int64_t       start;     /* time when read started */
159     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
160                                 is not defined */
161     int64_t       pts;       /* current pts */
162     PtsCorrectionContext pts_ctx;
163     double ts_scale;
164     int is_start;            /* is 1 at the start and after a discontinuity */
165     int showed_multi_packet_warning;
166     AVDictionary *opts;
167 } InputStream;
168
169 typedef struct InputFile {
170     AVFormatContext *ctx;
171     int eof_reached;      /* true if eof reached */
172     int ist_index;        /* index of first stream in ist_table */
173     int buffer_size;      /* current total buffer size */
174     int64_t ts_offset;
175     int nb_streams;       /* number of stream that avconv is aware of; may be different
176                              from ctx.nb_streams if new streams appear during av_read_frame() */
177     int rate_emu;
178 } InputFile;
179
180 typedef struct OutputStream {
181     int file_index;          /* file index */
182     int index;               /* stream index in the output file */
183     int source_index;        /* InputStream index */
184     AVStream *st;            /* stream in the output file */
185     int encoding_needed;     /* true if encoding needed for this stream */
186     int frame_number;
187     /* input pts and corresponding output pts
188        for A/V sync */
189     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
190     struct InputStream *sync_ist; /* input stream to sync against */
191     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
192     AVBitStreamFilterContext *bitstream_filters;
193     AVCodec *enc;
194     int64_t max_frames;
195
196     /* video only */
197     int video_resample;
198     AVFrame pict_tmp;      /* temporary image for resampling */
199     struct SwsContext *img_resample_ctx; /* for image resampling */
200     int resample_height;
201     int resample_width;
202     int resample_pix_fmt;
203     AVRational frame_rate;
204     int force_fps;
205     int top_field_first;
206
207     float frame_aspect_ratio;
208
209     /* forced key frames */
210     int64_t *forced_kf_pts;
211     int forced_kf_count;
212     int forced_kf_index;
213
214     /* audio only */
215     int audio_resample;
216     ReSampleContext *resample; /* for audio resampling */
217     int resample_sample_fmt;
218     int resample_channels;
219     int resample_sample_rate;
220     int reformat_pair;
221     AVAudioConvert *reformat_ctx;
222     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
223     FILE *logfile;
224
225 #if CONFIG_AVFILTER
226     AVFilterContext *output_video_filter;
227     AVFilterContext *input_video_filter;
228     AVFilterBufferRef *picref;
229     char *avfilter;
230     AVFilterGraph *graph;
231 #endif
232
233    int sws_flags;
234    AVDictionary *opts;
235    int is_past_recording_time;
236 } OutputStream;
237
238
239 typedef struct OutputFile {
240     AVFormatContext *ctx;
241     AVDictionary *opts;
242     int ost_index;       /* index of the first stream in output_streams */
243     int64_t recording_time; /* desired length of the resulting file in microseconds */
244     int64_t start_time;     /* start time in microseconds */
245     uint64_t limit_filesize;
246 } OutputFile;
247
248 static InputStream *input_streams = NULL;
249 static int         nb_input_streams = 0;
250 static InputFile   *input_files   = NULL;
251 static int         nb_input_files   = 0;
252
253 static OutputStream *output_streams = NULL;
254 static int        nb_output_streams = 0;
255 static OutputFile   *output_files   = NULL;
256 static int        nb_output_files   = 0;
257
258 typedef struct OptionsContext {
259     /* input/output options */
260     int64_t start_time;
261     const char *format;
262
263     SpecifierOpt *codec_names;
264     int        nb_codec_names;
265     SpecifierOpt *audio_channels;
266     int        nb_audio_channels;
267     SpecifierOpt *audio_sample_rate;
268     int        nb_audio_sample_rate;
269     SpecifierOpt *frame_rates;
270     int        nb_frame_rates;
271     SpecifierOpt *frame_sizes;
272     int        nb_frame_sizes;
273     SpecifierOpt *frame_pix_fmts;
274     int        nb_frame_pix_fmts;
275
276     /* input options */
277     int64_t input_ts_offset;
278     int rate_emu;
279
280     SpecifierOpt *ts_scale;
281     int        nb_ts_scale;
282
283     /* output options */
284     StreamMap *stream_maps;
285     int     nb_stream_maps;
286     /* first item specifies output metadata, second is input */
287     MetadataMap (*meta_data_maps)[2];
288     int nb_meta_data_maps;
289     int metadata_global_manual;
290     int metadata_streams_manual;
291     int metadata_chapters_manual;
292
293     int chapters_input_file;
294
295     int64_t recording_time;
296     uint64_t limit_filesize;
297     float mux_preload;
298     float mux_max_delay;
299
300     int video_disable;
301     int audio_disable;
302     int subtitle_disable;
303     int data_disable;
304
305     SpecifierOpt *metadata;
306     int        nb_metadata;
307     SpecifierOpt *max_frames;
308     int        nb_max_frames;
309     SpecifierOpt *bitstream_filters;
310     int        nb_bitstream_filters;
311     SpecifierOpt *codec_tags;
312     int        nb_codec_tags;
313     SpecifierOpt *sample_fmts;
314     int        nb_sample_fmts;
315     SpecifierOpt *qscale;
316     int        nb_qscale;
317     SpecifierOpt *forced_key_frames;
318     int        nb_forced_key_frames;
319     SpecifierOpt *force_fps;
320     int        nb_force_fps;
321     SpecifierOpt *frame_aspect_ratios;
322     int        nb_frame_aspect_ratios;
323     SpecifierOpt *rc_overrides;
324     int        nb_rc_overrides;
325     SpecifierOpt *intra_matrices;
326     int        nb_intra_matrices;
327     SpecifierOpt *inter_matrices;
328     int        nb_inter_matrices;
329     SpecifierOpt *top_field_first;
330     int        nb_top_field_first;
331 } OptionsContext;
332
333 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
334 {\
335     int i, ret;\
336     for (i = 0; i < o->nb_ ## name; i++) {\
337         char *spec = o->name[i].specifier;\
338         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
339             outvar = o->name[i].u.type;\
340         else if (ret < 0)\
341             exit_program(1);\
342     }\
343 }
344
345 static void reset_options(OptionsContext *o)
346 {
347     const OptionDef *po = options;
348
349     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
350     while (po->name) {
351         void *dst = (uint8_t*)o + po->u.off;
352
353         if (po->flags & OPT_SPEC) {
354             SpecifierOpt **so = dst;
355             int i, *count = (int*)(so + 1);
356             for (i = 0; i < *count; i++) {
357                 av_freep(&(*so)[i].specifier);
358                 if (po->flags & OPT_STRING)
359                     av_freep(&(*so)[i].u.str);
360             }
361             av_freep(so);
362             *count = 0;
363         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
364             av_freep(dst);
365         po++;
366     }
367
368     av_freep(&o->stream_maps);
369     av_freep(&o->meta_data_maps);
370
371     memset(o, 0, sizeof(*o));
372
373     o->mux_preload    = 0.5;
374     o->mux_max_delay  = 0.7;
375     o->recording_time = INT64_MAX;
376     o->limit_filesize = UINT64_MAX;
377     o->chapters_input_file = INT_MAX;
378
379     uninit_opts();
380     init_opts();
381 }
382
383 #if CONFIG_AVFILTER
384
385 static int configure_video_filters(InputStream *ist, OutputStream *ost)
386 {
387     AVFilterContext *last_filter, *filter;
388     /** filter graph containing all filters including input & output */
389     AVCodecContext *codec = ost->st->codec;
390     AVCodecContext *icodec = ist->st->codec;
391     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
392     AVRational sample_aspect_ratio;
393     char args[255];
394     int ret;
395
396     ost->graph = avfilter_graph_alloc();
397
398     if (ist->st->sample_aspect_ratio.num){
399         sample_aspect_ratio = ist->st->sample_aspect_ratio;
400     }else
401         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
402
403     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
404              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
405              sample_aspect_ratio.num, sample_aspect_ratio.den);
406
407     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
408                                        "src", args, NULL, ost->graph);
409     if (ret < 0)
410         return ret;
411     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
412                                        "out", NULL, &ffsink_ctx, ost->graph);
413     if (ret < 0)
414         return ret;
415     last_filter = ost->input_video_filter;
416
417     if (codec->width  != icodec->width || codec->height != icodec->height) {
418         snprintf(args, 255, "%d:%d:flags=0x%X",
419                  codec->width,
420                  codec->height,
421                  ost->sws_flags);
422         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
423                                                 NULL, args, NULL, ost->graph)) < 0)
424             return ret;
425         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
426             return ret;
427         last_filter = filter;
428     }
429
430     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
431     ost->graph->scale_sws_opts = av_strdup(args);
432
433     if (ost->avfilter) {
434         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
435         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
436
437         outputs->name    = av_strdup("in");
438         outputs->filter_ctx = last_filter;
439         outputs->pad_idx = 0;
440         outputs->next    = NULL;
441
442         inputs->name    = av_strdup("out");
443         inputs->filter_ctx = ost->output_video_filter;
444         inputs->pad_idx = 0;
445         inputs->next    = NULL;
446
447         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
448             return ret;
449         av_freep(&ost->avfilter);
450     } else {
451         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
452             return ret;
453     }
454
455     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
456         return ret;
457
458     codec->width  = ost->output_video_filter->inputs[0]->w;
459     codec->height = ost->output_video_filter->inputs[0]->h;
460     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
461         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
462         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
463         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
464
465     return 0;
466 }
467 #endif /* CONFIG_AVFILTER */
468
469 static void term_exit(void)
470 {
471     av_log(NULL, AV_LOG_QUIET, "");
472 }
473
474 static volatile int received_sigterm = 0;
475 static volatile int received_nb_signals = 0;
476
477 static void
478 sigterm_handler(int sig)
479 {
480     received_sigterm = sig;
481     received_nb_signals++;
482     term_exit();
483 }
484
485 static void term_init(void)
486 {
487     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
488     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
489 #ifdef SIGXCPU
490     signal(SIGXCPU, sigterm_handler);
491 #endif
492 }
493
494 static int decode_interrupt_cb(void)
495 {
496     return received_nb_signals > 1;
497 }
498
499 void exit_program(int ret)
500 {
501     int i;
502
503     /* close files */
504     for(i=0;i<nb_output_files;i++) {
505         AVFormatContext *s = output_files[i].ctx;
506         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
507             avio_close(s->pb);
508         avformat_free_context(s);
509         av_dict_free(&output_files[i].opts);
510     }
511     for(i=0;i<nb_input_files;i++) {
512         av_close_input_file(input_files[i].ctx);
513     }
514     for (i = 0; i < nb_input_streams; i++)
515         av_dict_free(&input_streams[i].opts);
516
517     if (vstats_file)
518         fclose(vstats_file);
519     av_free(vstats_filename);
520
521     av_freep(&input_streams);
522     av_freep(&input_files);
523     av_freep(&output_streams);
524     av_freep(&output_files);
525
526     uninit_opts();
527     av_free(audio_buf);
528     av_free(audio_out);
529     allocated_audio_buf_size= allocated_audio_out_size= 0;
530     av_free(samples);
531
532 #if CONFIG_AVFILTER
533     avfilter_uninit();
534 #endif
535
536     if (received_sigterm) {
537         fprintf(stderr,
538             "Received signal %d: terminating.\n",
539             (int) received_sigterm);
540         exit (255);
541     }
542
543     exit(ret); /* not all OS-es handle main() return value */
544 }
545
546 static void assert_avoptions(AVDictionary *m)
547 {
548     AVDictionaryEntry *t;
549     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
550         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
551         exit_program(1);
552     }
553 }
554
555 static void assert_codec_experimental(AVCodecContext *c, int encoder)
556 {
557     const char *codec_string = encoder ? "encoder" : "decoder";
558     AVCodec *codec;
559     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
560         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
561         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
562                 "results.\nAdd '-strict experimental' if you want to use it.\n",
563                 codec_string, c->codec->name);
564         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
565         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
566             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
567                    codec_string, codec->name);
568         exit_program(1);
569     }
570 }
571
572 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
573 {
574     if(codec && codec->sample_fmts){
575         const enum AVSampleFormat *p= codec->sample_fmts;
576         for(; *p!=-1; p++){
577             if(*p == st->codec->sample_fmt)
578                 break;
579         }
580         if (*p == -1) {
581             av_log(NULL, AV_LOG_WARNING,
582                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
583                    av_get_sample_fmt_name(st->codec->sample_fmt),
584                    codec->name,
585                    av_get_sample_fmt_name(codec->sample_fmts[0]));
586             st->codec->sample_fmt = codec->sample_fmts[0];
587         }
588     }
589 }
590
591 /**
592  * Update the requested input sample format based on the output sample format.
593  * This is currently only used to request float output from decoders which
594  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
595  * Ideally this will be removed in the future when decoders do not do format
596  * conversion and only output in their native format.
597  */
598 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
599                               AVCodecContext *enc)
600 {
601     /* if sample formats match or a decoder sample format has already been
602        requested, just return */
603     if (enc->sample_fmt == dec->sample_fmt ||
604         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
605         return;
606
607     /* if decoder supports more than one output format */
608     if (dec_codec && dec_codec->sample_fmts &&
609         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
610         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
611         const enum AVSampleFormat *p;
612         int min_dec = -1, min_inc = -1;
613
614         /* find a matching sample format in the encoder */
615         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
616             if (*p == enc->sample_fmt) {
617                 dec->request_sample_fmt = *p;
618                 return;
619             } else if (*p > enc->sample_fmt) {
620                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
621             } else
622                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
623         }
624
625         /* if none match, provide the one that matches quality closest */
626         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
627                                   enc->sample_fmt - min_dec;
628     }
629 }
630
631 static void choose_sample_rate(AVStream *st, AVCodec *codec)
632 {
633     if(codec && codec->supported_samplerates){
634         const int *p= codec->supported_samplerates;
635         int best=0;
636         int best_dist=INT_MAX;
637         for(; *p; p++){
638             int dist= abs(st->codec->sample_rate - *p);
639             if(dist < best_dist){
640                 best_dist= dist;
641                 best= *p;
642             }
643         }
644         if(best_dist){
645             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
646         }
647         st->codec->sample_rate= best;
648     }
649 }
650
651 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
652 {
653     if(codec && codec->pix_fmts){
654         const enum PixelFormat *p= codec->pix_fmts;
655         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
656             if(st->codec->codec_id==CODEC_ID_MJPEG){
657                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
658             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
659                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
660             }
661         }
662         for(; *p!=-1; p++){
663             if(*p == st->codec->pix_fmt)
664                 break;
665         }
666         if (*p == -1) {
667             if(st->codec->pix_fmt != PIX_FMT_NONE)
668                 av_log(NULL, AV_LOG_WARNING,
669                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
670                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
671                         codec->name,
672                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
673             st->codec->pix_fmt = codec->pix_fmts[0];
674         }
675     }
676 }
677
678 static double
679 get_sync_ipts(const OutputStream *ost)
680 {
681     const InputStream *ist = ost->sync_ist;
682     OutputFile *of = &output_files[ost->file_index];
683     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
684 }
685
686 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
687     int ret;
688
689     while(bsfc){
690         AVPacket new_pkt= *pkt;
691         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
692                                           &new_pkt.data, &new_pkt.size,
693                                           pkt->data, pkt->size,
694                                           pkt->flags & AV_PKT_FLAG_KEY);
695         if(a>0){
696             av_free_packet(pkt);
697             new_pkt.destruct= av_destruct_packet;
698         } else if(a<0){
699             fprintf(stderr, "%s failed for stream %d, codec %s",
700                     bsfc->filter->name, pkt->stream_index,
701                     avctx->codec ? avctx->codec->name : "copy");
702             print_error("", a);
703             if (exit_on_error)
704                 exit_program(1);
705         }
706         *pkt= new_pkt;
707
708         bsfc= bsfc->next;
709     }
710
711     ret= av_interleaved_write_frame(s, pkt);
712     if(ret < 0){
713         print_error("av_interleaved_write_frame()", ret);
714         exit_program(1);
715     }
716 }
717
718 static void do_audio_out(AVFormatContext *s,
719                          OutputStream *ost,
720                          InputStream *ist,
721                          unsigned char *buf, int size)
722 {
723     uint8_t *buftmp;
724     int64_t audio_out_size, audio_buf_size;
725     int64_t allocated_for_size= size;
726
727     int size_out, frame_bytes, ret, resample_changed;
728     AVCodecContext *enc= ost->st->codec;
729     AVCodecContext *dec= ist->st->codec;
730     int osize = av_get_bytes_per_sample(enc->sample_fmt);
731     int isize = av_get_bytes_per_sample(dec->sample_fmt);
732     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
733
734 need_realloc:
735     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
736     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
737     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
738     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
739     audio_buf_size*= osize*enc->channels;
740
741     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
742     if(coded_bps > 8*osize)
743         audio_out_size= audio_out_size * coded_bps / (8*osize);
744     audio_out_size += FF_MIN_BUFFER_SIZE;
745
746     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
747         fprintf(stderr, "Buffer sizes too large\n");
748         exit_program(1);
749     }
750
751     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
752     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
753     if (!audio_buf || !audio_out){
754         fprintf(stderr, "Out of memory in do_audio_out\n");
755         exit_program(1);
756     }
757
758     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
759         ost->audio_resample = 1;
760
761     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
762                        ost->resample_channels    != dec->channels   ||
763                        ost->resample_sample_rate != dec->sample_rate;
764
765     if ((ost->audio_resample && !ost->resample) || resample_changed) {
766         if (resample_changed) {
767             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
768                    ist->file_index, ist->st->index,
769                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
770                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
771             ost->resample_sample_fmt  = dec->sample_fmt;
772             ost->resample_channels    = dec->channels;
773             ost->resample_sample_rate = dec->sample_rate;
774             if (ost->resample)
775                 audio_resample_close(ost->resample);
776         }
777         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
778         if (audio_sync_method <= 1 &&
779             ost->resample_sample_fmt  == enc->sample_fmt &&
780             ost->resample_channels    == enc->channels   &&
781             ost->resample_sample_rate == enc->sample_rate) {
782             ost->resample = NULL;
783             ost->audio_resample = 0;
784         } else if (ost->audio_resample) {
785             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
786                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
787             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
788                                                    enc->sample_rate, dec->sample_rate,
789                                                    enc->sample_fmt,  dec->sample_fmt,
790                                                    16, 10, 0, 0.8);
791             if (!ost->resample) {
792                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
793                         dec->channels, dec->sample_rate,
794                         enc->channels, enc->sample_rate);
795                 exit_program(1);
796             }
797         }
798     }
799
800 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
801     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
802         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
803         if (ost->reformat_ctx)
804             av_audio_convert_free(ost->reformat_ctx);
805         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
806                                                    dec->sample_fmt, 1, NULL, 0);
807         if (!ost->reformat_ctx) {
808             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
809                 av_get_sample_fmt_name(dec->sample_fmt),
810                 av_get_sample_fmt_name(enc->sample_fmt));
811             exit_program(1);
812         }
813         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
814     }
815
816     if(audio_sync_method){
817         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
818                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
819         double idelta= delta*dec->sample_rate / enc->sample_rate;
820         int byte_delta= ((int)idelta)*2*dec->channels;
821
822         //FIXME resample delay
823         if(fabs(delta) > 50){
824             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
825                 if(byte_delta < 0){
826                     byte_delta= FFMAX(byte_delta, -size);
827                     size += byte_delta;
828                     buf  -= byte_delta;
829                     if(verbose > 2)
830                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
831                     if(!size)
832                         return;
833                     ist->is_start=0;
834                 }else{
835                     static uint8_t *input_tmp= NULL;
836                     input_tmp= av_realloc(input_tmp, byte_delta + size);
837
838                     if(byte_delta > allocated_for_size - size){
839                         allocated_for_size= byte_delta + (int64_t)size;
840                         goto need_realloc;
841                     }
842                     ist->is_start=0;
843
844                     memset(input_tmp, 0, byte_delta);
845                     memcpy(input_tmp + byte_delta, buf, size);
846                     buf= input_tmp;
847                     size += byte_delta;
848                     if(verbose > 2)
849                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
850                 }
851             }else if(audio_sync_method>1){
852                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
853                 av_assert0(ost->audio_resample);
854                 if(verbose > 2)
855                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
856 //                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));
857                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
858             }
859         }
860     }else
861         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
862                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
863
864     if (ost->audio_resample) {
865         buftmp = audio_buf;
866         size_out = audio_resample(ost->resample,
867                                   (short *)buftmp, (short *)buf,
868                                   size / (dec->channels * isize));
869         size_out = size_out * enc->channels * osize;
870     } else {
871         buftmp = buf;
872         size_out = size;
873     }
874
875     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
876         const void *ibuf[6]= {buftmp};
877         void *obuf[6]= {audio_buf};
878         int istride[6]= {isize};
879         int ostride[6]= {osize};
880         int len= size_out/istride[0];
881         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
882             printf("av_audio_convert() failed\n");
883             if (exit_on_error)
884                 exit_program(1);
885             return;
886         }
887         buftmp = audio_buf;
888         size_out = len*osize;
889     }
890
891     /* now encode as many frames as possible */
892     if (enc->frame_size > 1) {
893         /* output resampled raw samples */
894         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
895             fprintf(stderr, "av_fifo_realloc2() failed\n");
896             exit_program(1);
897         }
898         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
899
900         frame_bytes = enc->frame_size * osize * enc->channels;
901
902         while (av_fifo_size(ost->fifo) >= frame_bytes) {
903             AVPacket pkt;
904             av_init_packet(&pkt);
905
906             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
907
908             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
909
910             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
911                                        (short *)audio_buf);
912             if (ret < 0) {
913                 fprintf(stderr, "Audio encoding failed\n");
914                 exit_program(1);
915             }
916             audio_size += ret;
917             pkt.stream_index= ost->index;
918             pkt.data= audio_out;
919             pkt.size= ret;
920             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
921                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
922             pkt.flags |= AV_PKT_FLAG_KEY;
923             write_frame(s, &pkt, enc, ost->bitstream_filters);
924
925             ost->sync_opts += enc->frame_size;
926         }
927     } else {
928         AVPacket pkt;
929         av_init_packet(&pkt);
930
931         ost->sync_opts += size_out / (osize * enc->channels);
932
933         /* output a pcm frame */
934         /* determine the size of the coded buffer */
935         size_out /= osize;
936         if (coded_bps)
937             size_out = size_out*coded_bps/8;
938
939         if(size_out > audio_out_size){
940             fprintf(stderr, "Internal error, buffer size too small\n");
941             exit_program(1);
942         }
943
944         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
945         ret = avcodec_encode_audio(enc, audio_out, size_out,
946                                    (short *)buftmp);
947         if (ret < 0) {
948             fprintf(stderr, "Audio encoding failed\n");
949             exit_program(1);
950         }
951         audio_size += ret;
952         pkt.stream_index= ost->index;
953         pkt.data= audio_out;
954         pkt.size= ret;
955         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
956             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
957         pkt.flags |= AV_PKT_FLAG_KEY;
958         write_frame(s, &pkt, enc, ost->bitstream_filters);
959     }
960 }
961
962 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
963 {
964     AVCodecContext *dec;
965     AVPicture *picture2;
966     AVPicture picture_tmp;
967     uint8_t *buf = 0;
968
969     dec = ist->st->codec;
970
971     /* deinterlace : must be done before any resize */
972     if (do_deinterlace) {
973         int size;
974
975         /* create temporary picture */
976         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
977         buf = av_malloc(size);
978         if (!buf)
979             return;
980
981         picture2 = &picture_tmp;
982         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
983
984         if(avpicture_deinterlace(picture2, picture,
985                                  dec->pix_fmt, dec->width, dec->height) < 0) {
986             /* if error, do not deinterlace */
987             fprintf(stderr, "Deinterlacing failed\n");
988             av_free(buf);
989             buf = NULL;
990             picture2 = picture;
991         }
992     } else {
993         picture2 = picture;
994     }
995
996     if (picture != picture2)
997         *picture = *picture2;
998     *bufp = buf;
999 }
1000
1001 static void do_subtitle_out(AVFormatContext *s,
1002                             OutputStream *ost,
1003                             InputStream *ist,
1004                             AVSubtitle *sub,
1005                             int64_t pts)
1006 {
1007     static uint8_t *subtitle_out = NULL;
1008     int subtitle_out_max_size = 1024 * 1024;
1009     int subtitle_out_size, nb, i;
1010     AVCodecContext *enc;
1011     AVPacket pkt;
1012
1013     if (pts == AV_NOPTS_VALUE) {
1014         fprintf(stderr, "Subtitle packets must have a pts\n");
1015         if (exit_on_error)
1016             exit_program(1);
1017         return;
1018     }
1019
1020     enc = ost->st->codec;
1021
1022     if (!subtitle_out) {
1023         subtitle_out = av_malloc(subtitle_out_max_size);
1024     }
1025
1026     /* Note: DVB subtitle need one packet to draw them and one other
1027        packet to clear them */
1028     /* XXX: signal it in the codec context ? */
1029     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1030         nb = 2;
1031     else
1032         nb = 1;
1033
1034     for(i = 0; i < nb; i++) {
1035         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1036         // start_display_time is required to be 0
1037         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1038         sub->end_display_time -= sub->start_display_time;
1039         sub->start_display_time = 0;
1040         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1041                                                     subtitle_out_max_size, sub);
1042         if (subtitle_out_size < 0) {
1043             fprintf(stderr, "Subtitle encoding failed\n");
1044             exit_program(1);
1045         }
1046
1047         av_init_packet(&pkt);
1048         pkt.stream_index = ost->index;
1049         pkt.data = subtitle_out;
1050         pkt.size = subtitle_out_size;
1051         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1052         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1053             /* XXX: the pts correction is handled here. Maybe handling
1054                it in the codec would be better */
1055             if (i == 0)
1056                 pkt.pts += 90 * sub->start_display_time;
1057             else
1058                 pkt.pts += 90 * sub->end_display_time;
1059         }
1060         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1061     }
1062 }
1063
1064 static int bit_buffer_size= 1024*256;
1065 static uint8_t *bit_buffer= NULL;
1066
1067 static void do_video_resample(OutputStream *ost,
1068                               InputStream *ist,
1069                               AVFrame *in_picture,
1070                               AVFrame **out_picture)
1071 {
1072     int resample_changed = 0;
1073     AVCodecContext *dec = ist->st->codec;
1074     *out_picture = in_picture;
1075
1076     resample_changed = ost->resample_width   != dec->width  ||
1077                        ost->resample_height  != dec->height ||
1078                        ost->resample_pix_fmt != dec->pix_fmt;
1079
1080     if (resample_changed) {
1081         av_log(NULL, AV_LOG_INFO,
1082                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1083                ist->file_index, ist->st->index,
1084                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1085                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1086         if(!ost->video_resample)
1087             ost->video_resample = 1;
1088     }
1089
1090 #if !CONFIG_AVFILTER
1091     if (ost->video_resample) {
1092         *out_picture = &ost->pict_tmp;
1093         if (resample_changed) {
1094             /* initialize a new scaler context */
1095             sws_freeContext(ost->img_resample_ctx);
1096             ost->img_resample_ctx = sws_getContext(
1097                 ist->st->codec->width,
1098                 ist->st->codec->height,
1099                 ist->st->codec->pix_fmt,
1100                 ost->st->codec->width,
1101                 ost->st->codec->height,
1102                 ost->st->codec->pix_fmt,
1103                 ost->sws_flags, NULL, NULL, NULL);
1104             if (ost->img_resample_ctx == NULL) {
1105                 fprintf(stderr, "Cannot get resampling context\n");
1106                 exit_program(1);
1107             }
1108         }
1109         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1110               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1111     }
1112 #else
1113     if (resample_changed) {
1114         avfilter_graph_free(&ost->graph);
1115         if (configure_video_filters(ist, ost)) {
1116             fprintf(stderr, "Error reinitializing filters!\n");
1117             exit_program(1);
1118         }
1119     }
1120 #endif
1121     if (resample_changed) {
1122         ost->resample_width   = dec->width;
1123         ost->resample_height  = dec->height;
1124         ost->resample_pix_fmt = dec->pix_fmt;
1125     }
1126 }
1127
1128
1129 static void do_video_out(AVFormatContext *s,
1130                          OutputStream *ost,
1131                          InputStream *ist,
1132                          AVFrame *in_picture,
1133                          int *frame_size, float quality)
1134 {
1135     int nb_frames, i, ret, format_video_sync;
1136     AVFrame *final_picture;
1137     AVCodecContext *enc;
1138     double sync_ipts;
1139
1140     enc = ost->st->codec;
1141
1142     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1143
1144     /* by default, we output a single frame */
1145     nb_frames = 1;
1146
1147     *frame_size = 0;
1148
1149     format_video_sync = video_sync_method;
1150     if (format_video_sync < 0)
1151         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1152
1153     if (format_video_sync) {
1154         double vdelta = sync_ipts - ost->sync_opts;
1155         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1156         if (vdelta < -1.1)
1157             nb_frames = 0;
1158         else if (format_video_sync == 2) {
1159             if(vdelta<=-0.6){
1160                 nb_frames=0;
1161             }else if(vdelta>0.6)
1162                 ost->sync_opts= lrintf(sync_ipts);
1163         }else if (vdelta > 1.1)
1164             nb_frames = lrintf(vdelta);
1165 //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);
1166         if (nb_frames == 0){
1167             ++nb_frames_drop;
1168             if (verbose>2)
1169                 fprintf(stderr, "*** drop!\n");
1170         }else if (nb_frames > 1) {
1171             nb_frames_dup += nb_frames - 1;
1172             if (verbose>2)
1173                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1174         }
1175     }else
1176         ost->sync_opts= lrintf(sync_ipts);
1177
1178     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1179     if (nb_frames <= 0)
1180         return;
1181
1182     do_video_resample(ost, ist, in_picture, &final_picture);
1183
1184     /* duplicates frame if needed */
1185     for(i=0;i<nb_frames;i++) {
1186         AVPacket pkt;
1187         av_init_packet(&pkt);
1188         pkt.stream_index= ost->index;
1189
1190         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1191             /* raw pictures are written as AVPicture structure to
1192                avoid any copies. We support temporarily the older
1193                method. */
1194             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1195             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1196             pkt.data= (uint8_t *)final_picture;
1197             pkt.size=  sizeof(AVPicture);
1198             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1199             pkt.flags |= AV_PKT_FLAG_KEY;
1200
1201             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1202         } else {
1203             AVFrame big_picture;
1204
1205             big_picture= *final_picture;
1206             /* better than nothing: use input picture interlaced
1207                settings */
1208             big_picture.interlaced_frame = in_picture->interlaced_frame;
1209             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1210                 if (ost->top_field_first == -1)
1211                     big_picture.top_field_first = in_picture->top_field_first;
1212                 else
1213                     big_picture.top_field_first = !!ost->top_field_first;
1214             }
1215
1216             /* handles same_quant here. This is not correct because it may
1217                not be a global option */
1218             big_picture.quality = quality;
1219             if (!enc->me_threshold)
1220                 big_picture.pict_type = 0;
1221 //            big_picture.pts = AV_NOPTS_VALUE;
1222             big_picture.pts= ost->sync_opts;
1223 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1224 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1225             if (ost->forced_kf_index < ost->forced_kf_count &&
1226                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1227                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1228                 ost->forced_kf_index++;
1229             }
1230             ret = avcodec_encode_video(enc,
1231                                        bit_buffer, bit_buffer_size,
1232                                        &big_picture);
1233             if (ret < 0) {
1234                 fprintf(stderr, "Video encoding failed\n");
1235                 exit_program(1);
1236             }
1237
1238             if(ret>0){
1239                 pkt.data= bit_buffer;
1240                 pkt.size= ret;
1241                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1242                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1243 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1244    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1245    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1246
1247                 if(enc->coded_frame->key_frame)
1248                     pkt.flags |= AV_PKT_FLAG_KEY;
1249                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1250                 *frame_size = ret;
1251                 video_size += ret;
1252                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1253                 //        enc->frame_number-1, ret, enc->pict_type);
1254                 /* if two pass, output log */
1255                 if (ost->logfile && enc->stats_out) {
1256                     fprintf(ost->logfile, "%s", enc->stats_out);
1257                 }
1258             }
1259         }
1260         ost->sync_opts++;
1261         ost->frame_number++;
1262     }
1263 }
1264
1265 static double psnr(double d){
1266     return -10.0*log(d)/log(10.0);
1267 }
1268
1269 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1270                            int frame_size)
1271 {
1272     AVCodecContext *enc;
1273     int frame_number;
1274     double ti1, bitrate, avg_bitrate;
1275
1276     /* this is executed just the first time do_video_stats is called */
1277     if (!vstats_file) {
1278         vstats_file = fopen(vstats_filename, "w");
1279         if (!vstats_file) {
1280             perror("fopen");
1281             exit_program(1);
1282         }
1283     }
1284
1285     enc = ost->st->codec;
1286     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1287         frame_number = ost->frame_number;
1288         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1289         if (enc->flags&CODEC_FLAG_PSNR)
1290             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1291
1292         fprintf(vstats_file,"f_size= %6d ", frame_size);
1293         /* compute pts value */
1294         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1295         if (ti1 < 0.01)
1296             ti1 = 0.01;
1297
1298         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1299         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1300         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1301             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1302         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1303     }
1304 }
1305
1306 static void print_report(OutputFile *output_files,
1307                          OutputStream *ost_table, int nb_ostreams,
1308                          int is_last_report, int64_t timer_start)
1309 {
1310     char buf[1024];
1311     OutputStream *ost;
1312     AVFormatContext *oc;
1313     int64_t total_size;
1314     AVCodecContext *enc;
1315     int frame_number, vid, i;
1316     double bitrate, ti1, pts;
1317     static int64_t last_time = -1;
1318     static int qp_histogram[52];
1319
1320     if (!is_last_report) {
1321         int64_t cur_time;
1322         /* display the report every 0.5 seconds */
1323         cur_time = av_gettime();
1324         if (last_time == -1) {
1325             last_time = cur_time;
1326             return;
1327         }
1328         if ((cur_time - last_time) < 500000)
1329             return;
1330         last_time = cur_time;
1331     }
1332
1333
1334     oc = output_files[0].ctx;
1335
1336     total_size = avio_size(oc->pb);
1337     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1338         total_size= avio_tell(oc->pb);
1339
1340     buf[0] = '\0';
1341     ti1 = 1e10;
1342     vid = 0;
1343     for(i=0;i<nb_ostreams;i++) {
1344         float q = -1;
1345         ost = &ost_table[i];
1346         enc = ost->st->codec;
1347         if (!ost->st->stream_copy && enc->coded_frame)
1348             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1349         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1350             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1351         }
1352         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1353             float t = (av_gettime()-timer_start) / 1000000.0;
1354
1355             frame_number = ost->frame_number;
1356             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1357                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1358             if(is_last_report)
1359                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1360             if(qp_hist){
1361                 int j;
1362                 int qp = lrintf(q);
1363                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1364                     qp_histogram[qp]++;
1365                 for(j=0; j<32; j++)
1366                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1367             }
1368             if (enc->flags&CODEC_FLAG_PSNR){
1369                 int j;
1370                 double error, error_sum=0;
1371                 double scale, scale_sum=0;
1372                 char type[3]= {'Y','U','V'};
1373                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1374                 for(j=0; j<3; j++){
1375                     if(is_last_report){
1376                         error= enc->error[j];
1377                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1378                     }else{
1379                         error= enc->coded_frame->error[j];
1380                         scale= enc->width*enc->height*255.0*255.0;
1381                     }
1382                     if(j) scale/=4;
1383                     error_sum += error;
1384                     scale_sum += scale;
1385                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1386                 }
1387                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1388             }
1389             vid = 1;
1390         }
1391         /* compute min output value */
1392         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1393         if ((pts < ti1) && (pts > 0))
1394             ti1 = pts;
1395     }
1396     if (ti1 < 0.01)
1397         ti1 = 0.01;
1398
1399     if (verbose > 0 || is_last_report) {
1400         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1401
1402         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1403             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1404             (double)total_size / 1024, ti1, bitrate);
1405
1406         if (nb_frames_dup || nb_frames_drop)
1407           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1408                   nb_frames_dup, nb_frames_drop);
1409
1410         if (verbose >= 0)
1411             fprintf(stderr, "%s    \r", buf);
1412
1413         fflush(stderr);
1414     }
1415
1416     if (is_last_report && verbose >= 0){
1417         int64_t raw= audio_size + video_size + extra_size;
1418         fprintf(stderr, "\n");
1419         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1420                 video_size/1024.0,
1421                 audio_size/1024.0,
1422                 extra_size/1024.0,
1423                 100.0*(total_size - raw)/raw
1424         );
1425     }
1426 }
1427
1428 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1429 {
1430     int fill_char = 0x00;
1431     if (sample_fmt == AV_SAMPLE_FMT_U8)
1432         fill_char = 0x80;
1433     memset(buf, fill_char, size);
1434 }
1435
1436 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1437 {
1438     int i, ret;
1439
1440     for (i = 0; i < nb_ostreams; i++) {
1441         OutputStream   *ost = &ost_table[i];
1442         AVCodecContext *enc = ost->st->codec;
1443         AVFormatContext *os = output_files[ost->file_index].ctx;
1444
1445         if (!ost->encoding_needed)
1446             continue;
1447
1448         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1449             continue;
1450         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1451             continue;
1452
1453         for(;;) {
1454             AVPacket pkt;
1455             int fifo_bytes;
1456             av_init_packet(&pkt);
1457             pkt.stream_index= ost->index;
1458
1459             switch (ost->st->codec->codec_type) {
1460             case AVMEDIA_TYPE_AUDIO:
1461                 fifo_bytes = av_fifo_size(ost->fifo);
1462                 ret = 0;
1463                 /* encode any samples remaining in fifo */
1464                 if (fifo_bytes > 0) {
1465                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1466                     int fs_tmp = enc->frame_size;
1467
1468                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1469                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1470                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1471                     } else { /* pad */
1472                         int frame_bytes = enc->frame_size*osize*enc->channels;
1473                         if (allocated_audio_buf_size < frame_bytes)
1474                             exit_program(1);
1475                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1476                     }
1477
1478                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1479                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1480                                               ost->st->time_base.num, enc->sample_rate);
1481                     enc->frame_size = fs_tmp;
1482                 }
1483                 if (ret <= 0) {
1484                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1485                 }
1486                 if (ret < 0) {
1487                     fprintf(stderr, "Audio encoding failed\n");
1488                     exit_program(1);
1489                 }
1490                 audio_size += ret;
1491                 pkt.flags |= AV_PKT_FLAG_KEY;
1492                 break;
1493             case AVMEDIA_TYPE_VIDEO:
1494                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1495                 if (ret < 0) {
1496                     fprintf(stderr, "Video encoding failed\n");
1497                     exit_program(1);
1498                 }
1499                 video_size += ret;
1500                 if(enc->coded_frame && enc->coded_frame->key_frame)
1501                     pkt.flags |= AV_PKT_FLAG_KEY;
1502                 if (ost->logfile && enc->stats_out) {
1503                     fprintf(ost->logfile, "%s", enc->stats_out);
1504                 }
1505                 break;
1506             default:
1507                 ret=-1;
1508             }
1509
1510             if (ret <= 0)
1511                 break;
1512             pkt.data = bit_buffer;
1513             pkt.size = ret;
1514             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1515                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1516             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1517         }
1518     }
1519 }
1520
1521 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1522 static int output_packet(InputStream *ist, int ist_index,
1523                          OutputStream *ost_table, int nb_ostreams,
1524                          const AVPacket *pkt)
1525 {
1526     AVFormatContext *os;
1527     OutputStream *ost;
1528     int ret, i;
1529     int got_output;
1530     AVFrame picture;
1531     void *buffer_to_free = NULL;
1532     static unsigned int samples_size= 0;
1533     AVSubtitle subtitle, *subtitle_to_free;
1534     int64_t pkt_pts = AV_NOPTS_VALUE;
1535 #if CONFIG_AVFILTER
1536     int frame_available;
1537 #endif
1538     float quality;
1539
1540     AVPacket avpkt;
1541     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1542
1543     if(ist->next_pts == AV_NOPTS_VALUE)
1544         ist->next_pts= ist->pts;
1545
1546     if (pkt == NULL) {
1547         /* EOF handling */
1548         av_init_packet(&avpkt);
1549         avpkt.data = NULL;
1550         avpkt.size = 0;
1551         goto handle_eof;
1552     } else {
1553         avpkt = *pkt;
1554     }
1555
1556     if(pkt->dts != AV_NOPTS_VALUE)
1557         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1558     if(pkt->pts != AV_NOPTS_VALUE)
1559         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1560
1561     //while we have more to decode or while the decoder did output something on EOF
1562     while (avpkt.size > 0 || (!pkt && got_output)) {
1563         uint8_t *data_buf, *decoded_data_buf;
1564         int data_size, decoded_data_size;
1565     handle_eof:
1566         ist->pts= ist->next_pts;
1567
1568         if(avpkt.size && avpkt.size != pkt->size &&
1569            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1570             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1571             ist->showed_multi_packet_warning=1;
1572         }
1573
1574         /* decode the packet if needed */
1575         decoded_data_buf = NULL; /* fail safe */
1576         decoded_data_size= 0;
1577         data_buf  = avpkt.data;
1578         data_size = avpkt.size;
1579         subtitle_to_free = NULL;
1580         if (ist->decoding_needed) {
1581             switch(ist->st->codec->codec_type) {
1582             case AVMEDIA_TYPE_AUDIO:{
1583                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1584                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1585                     av_free(samples);
1586                     samples= av_malloc(samples_size);
1587                 }
1588                 decoded_data_size= samples_size;
1589                     /* XXX: could avoid copy if PCM 16 bits with same
1590                        endianness as CPU */
1591                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1592                                             &avpkt);
1593                 if (ret < 0)
1594                     return ret;
1595                 avpkt.data += ret;
1596                 avpkt.size -= ret;
1597                 data_size   = ret;
1598                 got_output  = decoded_data_size > 0;
1599                 /* Some bug in mpeg audio decoder gives */
1600                 /* decoded_data_size < 0, it seems they are overflows */
1601                 if (!got_output) {
1602                     /* no audio frame */
1603                     continue;
1604                 }
1605                 decoded_data_buf = (uint8_t *)samples;
1606                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1607                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1608                 break;}
1609             case AVMEDIA_TYPE_VIDEO:
1610                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1611                     /* XXX: allocate picture correctly */
1612                     avcodec_get_frame_defaults(&picture);
1613                     avpkt.pts = pkt_pts;
1614                     avpkt.dts = ist->pts;
1615                     pkt_pts = AV_NOPTS_VALUE;
1616
1617                     ret = avcodec_decode_video2(ist->st->codec,
1618                                                 &picture, &got_output, &avpkt);
1619                     quality = same_quant ? picture.quality : 0;
1620                     if (ret < 0)
1621                         return ret;
1622                     if (!got_output) {
1623                         /* no picture yet */
1624                         goto discard_packet;
1625                     }
1626                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1627                     if (ist->st->codec->time_base.num != 0) {
1628                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1629                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1630                                           ist->st->codec->time_base.num * ticks) /
1631                             ist->st->codec->time_base.den;
1632                     }
1633                     avpkt.size = 0;
1634                     buffer_to_free = NULL;
1635                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1636                     break;
1637             case AVMEDIA_TYPE_SUBTITLE:
1638                 ret = avcodec_decode_subtitle2(ist->st->codec,
1639                                                &subtitle, &got_output, &avpkt);
1640                 if (ret < 0)
1641                     return ret;
1642                 if (!got_output) {
1643                     goto discard_packet;
1644                 }
1645                 subtitle_to_free = &subtitle;
1646                 avpkt.size = 0;
1647                 break;
1648             default:
1649                 return -1;
1650             }
1651         } else {
1652             switch(ist->st->codec->codec_type) {
1653             case AVMEDIA_TYPE_AUDIO:
1654                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1655                     ist->st->codec->sample_rate;
1656                 break;
1657             case AVMEDIA_TYPE_VIDEO:
1658                 if (ist->st->codec->time_base.num != 0) {
1659                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1660                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1661                                       ist->st->codec->time_base.num * ticks) /
1662                         ist->st->codec->time_base.den;
1663                 }
1664                 break;
1665             }
1666             avpkt.size = 0;
1667         }
1668
1669         // preprocess audio (volume)
1670         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1671             if (audio_volume != 256) {
1672                 short *volp;
1673                 volp = samples;
1674                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1675                     int v = ((*volp) * audio_volume + 128) >> 8;
1676                     *volp++ = av_clip_int16(v);
1677                 }
1678             }
1679         }
1680
1681         /* frame rate emulation */
1682         if (input_files[ist->file_index].rate_emu) {
1683             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1684             int64_t now = av_gettime() - ist->start;
1685             if (pts > now)
1686                 usleep(pts - now);
1687         }
1688         /* if output time reached then transcode raw format,
1689            encode packets and output them */
1690         for (i = 0; i < nb_ostreams; i++) {
1691             OutputFile *of = &output_files[ost_table[i].file_index];
1692             int frame_size;
1693
1694             ost = &ost_table[i];
1695             if (ost->source_index != ist_index)
1696                 continue;
1697
1698             if (of->start_time && ist->pts < of->start_time)
1699                 continue;
1700
1701             if (of->recording_time != INT64_MAX &&
1702                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1703                               (AVRational){1, 1000000}) >= 0) {
1704                 ost->is_past_recording_time = 1;
1705                 continue;
1706             }
1707
1708 #if CONFIG_AVFILTER
1709             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1710                 ost->input_video_filter) {
1711                 AVRational sar;
1712                 if (ist->st->sample_aspect_ratio.num)
1713                     sar = ist->st->sample_aspect_ratio;
1714                 else
1715                     sar = ist->st->codec->sample_aspect_ratio;
1716                 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1717             }
1718             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1719                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1720             while (frame_available) {
1721                 AVRational ist_pts_tb;
1722                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1723                     get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1724                 if (ost->picref)
1725                     ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1726 #endif
1727                 os = output_files[ost->file_index].ctx;
1728
1729                 /* set the input output pts pairs */
1730                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1731
1732                 if (ost->encoding_needed) {
1733                     av_assert0(ist->decoding_needed);
1734                     switch(ost->st->codec->codec_type) {
1735                     case AVMEDIA_TYPE_AUDIO:
1736                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1737                         break;
1738                     case AVMEDIA_TYPE_VIDEO:
1739 #if CONFIG_AVFILTER
1740                         if (ost->picref->video && !ost->frame_aspect_ratio)
1741                             ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1742 #endif
1743                         do_video_out(os, ost, ist, &picture, &frame_size,
1744                                      same_quant ? quality : ost->st->codec->global_quality);
1745                         if (vstats_filename && frame_size)
1746                             do_video_stats(os, ost, frame_size);
1747                         break;
1748                     case AVMEDIA_TYPE_SUBTITLE:
1749                         do_subtitle_out(os, ost, ist, &subtitle,
1750                                         pkt->pts);
1751                         break;
1752                     default:
1753                         abort();
1754                     }
1755                 } else {
1756                     AVFrame avframe; //FIXME/XXX remove this
1757                     AVPacket opkt;
1758                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1759
1760                     av_init_packet(&opkt);
1761
1762                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1763 #if !CONFIG_AVFILTER
1764                         continue;
1765 #else
1766                         goto cont;
1767 #endif
1768
1769                     /* no reencoding needed : output the packet directly */
1770                     /* force the input stream PTS */
1771
1772                     avcodec_get_frame_defaults(&avframe);
1773                     ost->st->codec->coded_frame= &avframe;
1774                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1775
1776                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1777                         audio_size += data_size;
1778                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1779                         video_size += data_size;
1780                         ost->sync_opts++;
1781                     }
1782
1783                     opkt.stream_index= ost->index;
1784                     if(pkt->pts != AV_NOPTS_VALUE)
1785                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1786                     else
1787                         opkt.pts= AV_NOPTS_VALUE;
1788
1789                     if (pkt->dts == AV_NOPTS_VALUE)
1790                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1791                     else
1792                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1793                     opkt.dts -= ost_tb_start_time;
1794
1795                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1796                     opkt.flags= pkt->flags;
1797
1798                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1799                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1800                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1801                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1802                        ) {
1803                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1804                             opkt.destruct= av_destruct_packet;
1805                     } else {
1806                         opkt.data = data_buf;
1807                         opkt.size = data_size;
1808                     }
1809
1810                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1811                     ost->st->codec->frame_number++;
1812                     ost->frame_number++;
1813                     av_free_packet(&opkt);
1814                 }
1815 #if CONFIG_AVFILTER
1816                 cont:
1817                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1818                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1819                 if (ost->picref)
1820                     avfilter_unref_buffer(ost->picref);
1821             }
1822 #endif
1823             }
1824
1825         av_free(buffer_to_free);
1826         /* XXX: allocate the subtitles in the codec ? */
1827         if (subtitle_to_free) {
1828             avsubtitle_free(subtitle_to_free);
1829             subtitle_to_free = NULL;
1830         }
1831     }
1832  discard_packet:
1833
1834     return 0;
1835 }
1836
1837 static void print_sdp(OutputFile *output_files, int n)
1838 {
1839     char sdp[2048];
1840     int i;
1841     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1842
1843     if (!avc)
1844         exit_program(1);
1845     for (i = 0; i < n; i++)
1846         avc[i] = output_files[i].ctx;
1847
1848     av_sdp_create(avc, n, sdp, sizeof(sdp));
1849     printf("SDP:\n%s\n", sdp);
1850     fflush(stdout);
1851     av_freep(&avc);
1852 }
1853
1854 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1855                              char *error, int error_len)
1856 {
1857     int i;
1858     InputStream *ist = &input_streams[ist_index];
1859     if (ist->decoding_needed) {
1860         AVCodec *codec = ist->dec;
1861         if (!codec) {
1862             snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1863                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1864             return AVERROR(EINVAL);
1865         }
1866
1867         /* update requested sample format for the decoder based on the
1868            corresponding encoder sample format */
1869         for (i = 0; i < nb_output_streams; i++) {
1870             OutputStream *ost = &output_streams[i];
1871             if (ost->source_index == ist_index) {
1872                 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1873                 break;
1874             }
1875         }
1876
1877         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1878             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1879                     ist->file_index, ist->st->index);
1880             return AVERROR(EINVAL);
1881         }
1882         assert_codec_experimental(ist->st->codec, 0);
1883         assert_avoptions(ist->opts);
1884     }
1885
1886     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;
1887     ist->next_pts = AV_NOPTS_VALUE;
1888     init_pts_correction(&ist->pts_ctx);
1889     ist->is_start = 1;
1890
1891     return 0;
1892 }
1893
1894 static int transcode_init(OutputFile *output_files,
1895                           int nb_output_files,
1896                           InputFile *input_files,
1897                           int nb_input_files)
1898 {
1899     int ret = 0, i, j, k;
1900     AVFormatContext *os;
1901     AVCodecContext *codec, *icodec;
1902     OutputStream *ost;
1903     InputStream *ist;
1904     char error[1024];
1905     int want_sdp = 1;
1906
1907     /* init framerate emulation */
1908     for (i = 0; i < nb_input_files; i++) {
1909         InputFile *ifile = &input_files[i];
1910         if (ifile->rate_emu)
1911             for (j = 0; j < ifile->nb_streams; j++)
1912                 input_streams[j + ifile->ist_index].start = av_gettime();
1913     }
1914
1915     /* output stream init */
1916     for(i=0;i<nb_output_files;i++) {
1917         os = output_files[i].ctx;
1918         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1919             av_dump_format(os, i, os->filename, 1);
1920             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1921             return AVERROR(EINVAL);
1922         }
1923     }
1924
1925     /* for each output stream, we compute the right encoding parameters */
1926     for (i = 0; i < nb_output_streams; i++) {
1927         ost = &output_streams[i];
1928         os = output_files[ost->file_index].ctx;
1929         ist = &input_streams[ost->source_index];
1930
1931         codec = ost->st->codec;
1932         icodec = ist->st->codec;
1933
1934         ost->st->disposition = ist->st->disposition;
1935         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1936         codec->chroma_sample_location = icodec->chroma_sample_location;
1937
1938         if (ost->st->stream_copy) {
1939             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1940
1941             if (extra_size > INT_MAX) {
1942                 return AVERROR(EINVAL);
1943             }
1944
1945             /* if stream_copy is selected, no need to decode or encode */
1946             codec->codec_id = icodec->codec_id;
1947             codec->codec_type = icodec->codec_type;
1948
1949             if(!codec->codec_tag){
1950                 if(   !os->oformat->codec_tag
1951                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1952                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1953                     codec->codec_tag = icodec->codec_tag;
1954             }
1955
1956             codec->bit_rate = icodec->bit_rate;
1957             codec->rc_max_rate    = icodec->rc_max_rate;
1958             codec->rc_buffer_size = icodec->rc_buffer_size;
1959             codec->extradata= av_mallocz(extra_size);
1960             if (!codec->extradata) {
1961                 return AVERROR(ENOMEM);
1962             }
1963             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1964             codec->extradata_size= icodec->extradata_size;
1965             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){
1966                 codec->time_base = icodec->time_base;
1967                 codec->time_base.num *= icodec->ticks_per_frame;
1968                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1969                           codec->time_base.num, codec->time_base.den, INT_MAX);
1970             }else
1971                 codec->time_base = ist->st->time_base;
1972             switch(codec->codec_type) {
1973             case AVMEDIA_TYPE_AUDIO:
1974                 if(audio_volume != 256) {
1975                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1976                     exit_program(1);
1977                 }
1978                 codec->channel_layout = icodec->channel_layout;
1979                 codec->sample_rate = icodec->sample_rate;
1980                 codec->channels = icodec->channels;
1981                 codec->frame_size = icodec->frame_size;
1982                 codec->audio_service_type = icodec->audio_service_type;
1983                 codec->block_align= icodec->block_align;
1984                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1985                     codec->block_align= 0;
1986                 if(codec->codec_id == CODEC_ID_AC3)
1987                     codec->block_align= 0;
1988                 break;
1989             case AVMEDIA_TYPE_VIDEO:
1990                 codec->pix_fmt = icodec->pix_fmt;
1991                 codec->width = icodec->width;
1992                 codec->height = icodec->height;
1993                 codec->has_b_frames = icodec->has_b_frames;
1994                 if (!codec->sample_aspect_ratio.num) {
1995                     codec->sample_aspect_ratio =
1996                     ost->st->sample_aspect_ratio =
1997                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1998                         ist->st->codec->sample_aspect_ratio.num ?
1999                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2000                 }
2001                 break;
2002             case AVMEDIA_TYPE_SUBTITLE:
2003                 codec->width = icodec->width;
2004                 codec->height = icodec->height;
2005                 break;
2006             case AVMEDIA_TYPE_DATA:
2007                 break;
2008             default:
2009                 abort();
2010             }
2011         } else {
2012             if (!ost->enc)
2013                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2014             switch(codec->codec_type) {
2015             case AVMEDIA_TYPE_AUDIO:
2016                 ost->fifo= av_fifo_alloc(1024);
2017                 if (!ost->fifo) {
2018                     return AVERROR(ENOMEM);
2019                 }
2020                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2021                 if (!codec->sample_rate) {
2022                     codec->sample_rate = icodec->sample_rate;
2023                     if (icodec->lowres)
2024                         codec->sample_rate >>= icodec->lowres;
2025                 }
2026                 choose_sample_rate(ost->st, ost->enc);
2027                 codec->time_base = (AVRational){1, codec->sample_rate};
2028                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2029                     codec->sample_fmt = icodec->sample_fmt;
2030                 choose_sample_fmt(ost->st, ost->enc);
2031                 if (!codec->channels)
2032                     codec->channels = icodec->channels;
2033                 codec->channel_layout = icodec->channel_layout;
2034                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2035                     codec->channel_layout = 0;
2036                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2037                 icodec->request_channels = codec->channels;
2038                 ist->decoding_needed = 1;
2039                 ost->encoding_needed = 1;
2040                 ost->resample_sample_fmt  = icodec->sample_fmt;
2041                 ost->resample_sample_rate = icodec->sample_rate;
2042                 ost->resample_channels    = icodec->channels;
2043                 break;
2044             case AVMEDIA_TYPE_VIDEO:
2045                 if (codec->pix_fmt == PIX_FMT_NONE)
2046                     codec->pix_fmt = icodec->pix_fmt;
2047                 choose_pixel_fmt(ost->st, ost->enc);
2048
2049                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2050                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2051                     exit_program(1);
2052                 }
2053
2054                 if (!codec->width || !codec->height) {
2055                     codec->width  = icodec->width;
2056                     codec->height = icodec->height;
2057                 }
2058
2059                 ost->video_resample = codec->width   != icodec->width  ||
2060                                       codec->height  != icodec->height ||
2061                                       codec->pix_fmt != icodec->pix_fmt;
2062                 if (ost->video_resample) {
2063 #if !CONFIG_AVFILTER
2064                     avcodec_get_frame_defaults(&ost->pict_tmp);
2065                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2066                                        codec->width, codec->height)) {
2067                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2068                         exit_program(1);
2069                     }
2070                     ost->img_resample_ctx = sws_getContext(
2071                         icodec->width,
2072                         icodec->height,
2073                         icodec->pix_fmt,
2074                         codec->width,
2075                         codec->height,
2076                         codec->pix_fmt,
2077                         ost->sws_flags, NULL, NULL, NULL);
2078                     if (ost->img_resample_ctx == NULL) {
2079                         fprintf(stderr, "Cannot get resampling context\n");
2080                         exit_program(1);
2081                     }
2082 #endif
2083                     codec->bits_per_raw_sample= 0;
2084                 }
2085
2086                 ost->resample_height = icodec->height;
2087                 ost->resample_width  = icodec->width;
2088                 ost->resample_pix_fmt= icodec->pix_fmt;
2089                 ost->encoding_needed = 1;
2090                 ist->decoding_needed = 1;
2091
2092                 if (!ost->frame_rate.num)
2093                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2094                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2095                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2096                     ost->frame_rate = ost->enc->supported_framerates[idx];
2097                 }
2098                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2099
2100 #if CONFIG_AVFILTER
2101                 if (configure_video_filters(ist, ost)) {
2102                     fprintf(stderr, "Error opening filters!\n");
2103                     exit(1);
2104                 }
2105 #endif
2106                 break;
2107             case AVMEDIA_TYPE_SUBTITLE:
2108                 ost->encoding_needed = 1;
2109                 ist->decoding_needed = 1;
2110                 break;
2111             default:
2112                 abort();
2113                 break;
2114             }
2115             /* two pass mode */
2116             if (ost->encoding_needed &&
2117                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2118                 char logfilename[1024];
2119                 FILE *f;
2120
2121                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2122                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2123                          i);
2124                 if (codec->flags & CODEC_FLAG_PASS1) {
2125                     f = fopen(logfilename, "wb");
2126                     if (!f) {
2127                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2128                         exit_program(1);
2129                     }
2130                     ost->logfile = f;
2131                 } else {
2132                     char  *logbuffer;
2133                     size_t logbuffer_size;
2134                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2135                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2136                         exit_program(1);
2137                     }
2138                     codec->stats_in = logbuffer;
2139                 }
2140             }
2141         }
2142         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2143             int size= codec->width * codec->height;
2144             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2145         }
2146     }
2147
2148     if (!bit_buffer)
2149         bit_buffer = av_malloc(bit_buffer_size);
2150     if (!bit_buffer) {
2151         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2152                 bit_buffer_size);
2153         return AVERROR(ENOMEM);
2154     }
2155
2156     /* open each encoder */
2157     for (i = 0; i < nb_output_streams; i++) {
2158         ost = &output_streams[i];
2159         if (ost->encoding_needed) {
2160             AVCodec *codec = ost->enc;
2161             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2162             if (!codec) {
2163                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2164                          ost->st->codec->codec_id, ost->file_index, ost->index);
2165                 ret = AVERROR(EINVAL);
2166                 goto dump_format;
2167             }
2168             if (dec->subtitle_header) {
2169                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2170                 if (!ost->st->codec->subtitle_header) {
2171                     ret = AVERROR(ENOMEM);
2172                     goto dump_format;
2173                 }
2174                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2175                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2176             }
2177             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2178                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2179                         ost->file_index, ost->index);
2180                 ret = AVERROR(EINVAL);
2181                 goto dump_format;
2182             }
2183             assert_codec_experimental(ost->st->codec, 1);
2184             assert_avoptions(ost->opts);
2185             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2186                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2187                                              "It takes bits/s as argument, not kbits/s\n");
2188             extra_size += ost->st->codec->extradata_size;
2189
2190             if (ost->st->codec->me_threshold)
2191                 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2192         }
2193     }
2194
2195     /* init input streams */
2196     for (i = 0; i < nb_input_streams; i++)
2197         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2198             goto dump_format;
2199
2200     /* discard unused programs */
2201     for (i = 0; i < nb_input_files; i++) {
2202         InputFile *ifile = &input_files[i];
2203         for (j = 0; j < ifile->ctx->nb_programs; j++) {
2204             AVProgram *p = ifile->ctx->programs[j];
2205             int discard  = AVDISCARD_ALL;
2206
2207             for (k = 0; k < p->nb_stream_indexes; k++)
2208                 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2209                     discard = AVDISCARD_DEFAULT;
2210                     break;
2211                 }
2212             p->discard = discard;
2213         }
2214     }
2215
2216     /* open files and write file headers */
2217     for (i = 0; i < nb_output_files; i++) {
2218         os = output_files[i].ctx;
2219         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2220             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2221             ret = AVERROR(EINVAL);
2222             goto dump_format;
2223         }
2224         assert_avoptions(output_files[i].opts);
2225         if (strcmp(os->oformat->name, "rtp")) {
2226             want_sdp = 0;
2227         }
2228     }
2229
2230  dump_format:
2231     /* dump the file output parameters - cannot be done before in case
2232        of stream copy */
2233     for(i=0;i<nb_output_files;i++) {
2234         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2235     }
2236
2237     /* dump the stream mapping */
2238     if (verbose >= 0) {
2239         fprintf(stderr, "Stream mapping:\n");
2240         for (i = 0; i < nb_output_streams;i ++) {
2241             ost = &output_streams[i];
2242             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2243                     input_streams[ost->source_index].file_index,
2244                     input_streams[ost->source_index].st->index,
2245                     ost->file_index,
2246                     ost->index);
2247             if (ost->sync_ist != &input_streams[ost->source_index])
2248                 fprintf(stderr, " [sync #%d.%d]",
2249                         ost->sync_ist->file_index,
2250                         ost->sync_ist->st->index);
2251             if (ost->st->stream_copy)
2252                 fprintf(stderr, " (copy)");
2253             else
2254                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2255                         input_streams[ost->source_index].dec->name : "?",
2256                         ost->enc ? ost->enc->name : "?");
2257             fprintf(stderr, "\n");
2258         }
2259     }
2260
2261     if (ret) {
2262         fprintf(stderr, "%s\n", error);
2263         return ret;
2264     }
2265
2266     if (want_sdp) {
2267         print_sdp(output_files, nb_output_files);
2268     }
2269
2270     return 0;
2271 }
2272
2273 /*
2274  * The following code is the main loop of the file converter
2275  */
2276 static int transcode(OutputFile *output_files,
2277                      int nb_output_files,
2278                      InputFile *input_files,
2279                      int nb_input_files)
2280 {
2281     int ret, i;
2282     AVFormatContext *is, *os;
2283     OutputStream *ost;
2284     InputStream *ist;
2285     uint8_t *no_packet;
2286     int no_packet_count=0;
2287     int64_t timer_start;
2288
2289     if (!(no_packet = av_mallocz(nb_input_files)))
2290         exit_program(1);
2291
2292     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2293     if (ret < 0)
2294         goto fail;
2295
2296     if (verbose >= 0)
2297         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2298     term_init();
2299
2300     timer_start = av_gettime();
2301
2302     for(; received_sigterm == 0;) {
2303         int file_index, ist_index;
2304         AVPacket pkt;
2305         int64_t ipts_min;
2306         double opts_min;
2307
2308         ipts_min = INT64_MAX;
2309         opts_min= 1e100;
2310
2311         /* select the stream that we must read now by looking at the
2312            smallest output pts */
2313         file_index = -1;
2314         for (i = 0; i < nb_output_streams; i++) {
2315             OutputFile *of;
2316             int64_t ipts;
2317             double  opts;
2318             ost = &output_streams[i];
2319             of = &output_files[ost->file_index];
2320             os = output_files[ost->file_index].ctx;
2321             ist = &input_streams[ost->source_index];
2322             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2323                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2324                 continue;
2325             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2326             ipts = ist->pts;
2327             if (!input_files[ist->file_index].eof_reached){
2328                 if(ipts < ipts_min) {
2329                     ipts_min = ipts;
2330                     if(input_sync ) file_index = ist->file_index;
2331                 }
2332                 if(opts < opts_min) {
2333                     opts_min = opts;
2334                     if(!input_sync) file_index = ist->file_index;
2335                 }
2336             }
2337             if (ost->frame_number >= ost->max_frames) {
2338                 int j;
2339                 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2340                     output_streams[j].is_past_recording_time = 1;
2341                 continue;
2342             }
2343         }
2344         /* if none, if is finished */
2345         if (file_index < 0) {
2346             if(no_packet_count){
2347                 no_packet_count=0;
2348                 memset(no_packet, 0, nb_input_files);
2349                 usleep(10000);
2350                 continue;
2351             }
2352             break;
2353         }
2354
2355         /* read a frame from it and output it in the fifo */
2356         is = input_files[file_index].ctx;
2357         ret= av_read_frame(is, &pkt);
2358         if(ret == AVERROR(EAGAIN)){
2359             no_packet[file_index]=1;
2360             no_packet_count++;
2361             continue;
2362         }
2363         if (ret < 0) {
2364             input_files[file_index].eof_reached = 1;
2365             if (opt_shortest)
2366                 break;
2367             else
2368                 continue;
2369         }
2370
2371         no_packet_count=0;
2372         memset(no_packet, 0, nb_input_files);
2373
2374         if (do_pkt_dump) {
2375             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2376                              is->streams[pkt.stream_index]);
2377         }
2378         /* the following test is needed in case new streams appear
2379            dynamically in stream : we ignore them */
2380         if (pkt.stream_index >= input_files[file_index].nb_streams)
2381             goto discard_packet;
2382         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2383         ist = &input_streams[ist_index];
2384         if (ist->discard)
2385             goto discard_packet;
2386
2387         if (pkt.dts != AV_NOPTS_VALUE)
2388             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2389         if (pkt.pts != AV_NOPTS_VALUE)
2390             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2391
2392         if(pkt.pts != AV_NOPTS_VALUE)
2393             pkt.pts *= ist->ts_scale;
2394         if(pkt.dts != AV_NOPTS_VALUE)
2395             pkt.dts *= ist->ts_scale;
2396
2397 //        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);
2398         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2399             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2400             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2401             int64_t delta= pkt_dts - ist->next_pts;
2402             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2403                 input_files[ist->file_index].ts_offset -= delta;
2404                 if (verbose > 2)
2405                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2406                             delta, input_files[ist->file_index].ts_offset);
2407                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2408                 if(pkt.pts != AV_NOPTS_VALUE)
2409                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2410             }
2411         }
2412
2413         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2414         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2415
2416             if (verbose >= 0)
2417                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2418                         ist->file_index, ist->st->index);
2419             if (exit_on_error)
2420                 exit_program(1);
2421             av_free_packet(&pkt);
2422             continue;
2423         }
2424
2425     discard_packet:
2426         av_free_packet(&pkt);
2427
2428         /* dump report by using the output first video and audio streams */
2429         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2430     }
2431
2432     /* at the end of stream, we must flush the decoder buffers */
2433     for (i = 0; i < nb_input_streams; i++) {
2434         ist = &input_streams[i];
2435         if (ist->decoding_needed) {
2436             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2437         }
2438     }
2439     flush_encoders(output_streams, nb_output_streams);
2440
2441     term_exit();
2442
2443     /* write the trailer if needed and close file */
2444     for(i=0;i<nb_output_files;i++) {
2445         os = output_files[i].ctx;
2446         av_write_trailer(os);
2447     }
2448
2449     /* dump report by using the first video and audio streams */
2450     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2451
2452     /* close each encoder */
2453     for (i = 0; i < nb_output_streams; i++) {
2454         ost = &output_streams[i];
2455         if (ost->encoding_needed) {
2456             av_freep(&ost->st->codec->stats_in);
2457             avcodec_close(ost->st->codec);
2458         }
2459 #if CONFIG_AVFILTER
2460         avfilter_graph_free(&ost->graph);
2461 #endif
2462     }
2463
2464     /* close each decoder */
2465     for (i = 0; i < nb_input_streams; i++) {
2466         ist = &input_streams[i];
2467         if (ist->decoding_needed) {
2468             avcodec_close(ist->st->codec);
2469         }
2470     }
2471
2472     /* finished ! */
2473     ret = 0;
2474
2475  fail:
2476     av_freep(&bit_buffer);
2477     av_freep(&no_packet);
2478
2479     if (output_streams) {
2480         for (i = 0; i < nb_output_streams; i++) {
2481             ost = &output_streams[i];
2482             if (ost) {
2483                 if (ost->st->stream_copy)
2484                     av_freep(&ost->st->codec->extradata);
2485                 if (ost->logfile) {
2486                     fclose(ost->logfile);
2487                     ost->logfile = NULL;
2488                 }
2489                 av_fifo_free(ost->fifo); /* works even if fifo is not
2490                                              initialized but set to zero */
2491                 av_freep(&ost->st->codec->subtitle_header);
2492                 av_free(ost->pict_tmp.data[0]);
2493                 av_free(ost->forced_kf_pts);
2494                 if (ost->video_resample)
2495                     sws_freeContext(ost->img_resample_ctx);
2496                 if (ost->resample)
2497                     audio_resample_close(ost->resample);
2498                 if (ost->reformat_ctx)
2499                     av_audio_convert_free(ost->reformat_ctx);
2500                 av_dict_free(&ost->opts);
2501             }
2502         }
2503     }
2504     return ret;
2505 }
2506
2507 static int opt_verbose(const char *opt, const char *arg)
2508 {
2509     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2510     return 0;
2511 }
2512
2513 static double parse_frame_aspect_ratio(const char *arg)
2514 {
2515     int x = 0, y = 0;
2516     double ar = 0;
2517     const char *p;
2518     char *end;
2519
2520     p = strchr(arg, ':');
2521     if (p) {
2522         x = strtol(arg, &end, 10);
2523         if (end == p)
2524             y = strtol(end+1, &end, 10);
2525         if (x > 0 && y > 0)
2526             ar = (double)x / (double)y;
2527     } else
2528         ar = strtod(arg, NULL);
2529
2530     if (!ar) {
2531         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2532         exit_program(1);
2533     }
2534     return ar;
2535 }
2536
2537 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2538 {
2539     return parse_option(o, "codec:a", arg, options);
2540 }
2541
2542 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2543 {
2544     return parse_option(o, "codec:v", arg, options);
2545 }
2546
2547 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2548 {
2549     return parse_option(o, "codec:s", arg, options);
2550 }
2551
2552 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2553 {
2554     return parse_option(o, "codec:d", arg, options);
2555 }
2556
2557 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2558 {
2559     StreamMap *m = NULL;
2560     int i, negative = 0, file_idx;
2561     int sync_file_idx = -1, sync_stream_idx;
2562     char *p, *sync;
2563     char *map;
2564
2565     if (*arg == '-') {
2566         negative = 1;
2567         arg++;
2568     }
2569     map = av_strdup(arg);
2570
2571     /* parse sync stream first, just pick first matching stream */
2572     if (sync = strchr(map, ',')) {
2573         *sync = 0;
2574         sync_file_idx = strtol(sync + 1, &sync, 0);
2575         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2576             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2577             exit_program(1);
2578         }
2579         if (*sync)
2580             sync++;
2581         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2582             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2583                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2584                 sync_stream_idx = i;
2585                 break;
2586             }
2587         if (i == input_files[sync_file_idx].nb_streams) {
2588             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2589                                        "match any streams.\n", arg);
2590             exit_program(1);
2591         }
2592     }
2593
2594
2595     file_idx = strtol(map, &p, 0);
2596     if (file_idx >= nb_input_files || file_idx < 0) {
2597         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2598         exit_program(1);
2599     }
2600     if (negative)
2601         /* disable some already defined maps */
2602         for (i = 0; i < o->nb_stream_maps; i++) {
2603             m = &o->stream_maps[i];
2604             if (check_stream_specifier(input_files[m->file_index].ctx,
2605                                        input_files[m->file_index].ctx->streams[m->stream_index],
2606                                        *p == ':' ? p + 1 : p) > 0)
2607                 m->disabled = 1;
2608         }
2609     else
2610         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2611             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2612                         *p == ':' ? p + 1 : p) <= 0)
2613                 continue;
2614             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2615                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2616             m = &o->stream_maps[o->nb_stream_maps - 1];
2617
2618             m->file_index   = file_idx;
2619             m->stream_index = i;
2620
2621             if (sync_file_idx >= 0) {
2622                 m->sync_file_index   = sync_file_idx;
2623                 m->sync_stream_index = sync_stream_idx;
2624             } else {
2625                 m->sync_file_index   = file_idx;
2626                 m->sync_stream_index = i;
2627             }
2628         }
2629
2630     if (!m) {
2631         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2632         exit_program(1);
2633     }
2634
2635     av_freep(&map);
2636     return 0;
2637 }
2638
2639 static void parse_meta_type(char *arg, char *type, int *index)
2640 {
2641     if (*arg) {
2642         *type = *arg;
2643         switch (*arg) {
2644         case 'g':
2645             break;
2646         case 's':
2647         case 'c':
2648         case 'p':
2649             if (*(++arg) == ':')
2650                 *index = strtol(++arg, NULL, 0);
2651             break;
2652         default:
2653             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2654             exit_program(1);
2655         }
2656     } else
2657         *type = 'g';
2658 }
2659
2660 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2661 {
2662     MetadataMap *m, *m1;
2663     char *p;
2664
2665     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2666                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2667
2668     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2669     m->file = strtol(arg, &p, 0);
2670     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2671
2672     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2673     if (p = strchr(opt, ':'))
2674         parse_meta_type(p + 1, &m1->type, &m1->index);
2675     else
2676         m1->type = 'g';
2677
2678     if (m->type == 'g' || m1->type == 'g')
2679         o->metadata_global_manual = 1;
2680     if (m->type == 's' || m1->type == 's')
2681         o->metadata_streams_manual = 1;
2682     if (m->type == 'c' || m1->type == 'c')
2683         o->metadata_chapters_manual = 1;
2684
2685     return 0;
2686 }
2687
2688 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2689 {
2690     const char *codec_string = encoder ? "encoder" : "decoder";
2691     AVCodec *codec;
2692
2693     if(!name)
2694         return CODEC_ID_NONE;
2695     codec = encoder ?
2696         avcodec_find_encoder_by_name(name) :
2697         avcodec_find_decoder_by_name(name);
2698     if(!codec) {
2699         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2700         exit_program(1);
2701     }
2702     if(codec->type != type) {
2703         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2704         exit_program(1);
2705     }
2706     return codec->id;
2707 }
2708
2709 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2710 {
2711     char *codec_name = NULL;
2712
2713     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2714
2715     if (!codec_name) {
2716         if (s->oformat) {
2717             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2718             return avcodec_find_encoder(st->codec->codec_id);
2719         }
2720     } else if (!strcmp(codec_name, "copy"))
2721         st->stream_copy = 1;
2722     else {
2723         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2724         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2725                             avcodec_find_decoder_by_name(codec_name);
2726     }
2727
2728     return NULL;
2729 }
2730
2731 /**
2732  * Add all the streams from the given input file to the global
2733  * list of input streams.
2734  */
2735 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2736 {
2737     int i, rfps, rfps_base;
2738
2739     for (i = 0; i < ic->nb_streams; i++) {
2740         AVStream *st = ic->streams[i];
2741         AVCodecContext *dec = st->codec;
2742         InputStream *ist;
2743         double scale = 1.0;
2744
2745         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2746         ist = &input_streams[nb_input_streams - 1];
2747         ist->st = st;
2748         ist->file_index = nb_input_files;
2749         ist->discard = 1;
2750         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2751
2752         MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2753         ist->ts_scale = scale;
2754
2755         ist->dec = choose_codec(o, ic, st, dec->codec_type);
2756         if (!ist->dec)
2757             ist->dec = avcodec_find_decoder(dec->codec_id);
2758
2759         switch (dec->codec_type) {
2760         case AVMEDIA_TYPE_AUDIO:
2761             if (o->audio_disable)
2762                 st->discard= AVDISCARD_ALL;
2763             break;
2764         case AVMEDIA_TYPE_VIDEO:
2765             rfps      = ic->streams[i]->r_frame_rate.num;
2766             rfps_base = ic->streams[i]->r_frame_rate.den;
2767             if (dec->lowres) {
2768                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2769                 dec->height >>= dec->lowres;
2770                 dec->width  >>= dec->lowres;
2771             }
2772
2773             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2774
2775                 if (verbose >= 0)
2776                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2777                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2778
2779                     (float)rfps / rfps_base, rfps, rfps_base);
2780             }
2781
2782             if (o->video_disable)
2783                 st->discard= AVDISCARD_ALL;
2784             else if(video_discard)
2785                 st->discard= video_discard;
2786             break;
2787         case AVMEDIA_TYPE_DATA:
2788             break;
2789         case AVMEDIA_TYPE_SUBTITLE:
2790             if (o->subtitle_disable)
2791                 st->discard = AVDISCARD_ALL;
2792             break;
2793         case AVMEDIA_TYPE_ATTACHMENT:
2794         case AVMEDIA_TYPE_UNKNOWN:
2795             break;
2796         default:
2797             abort();
2798         }
2799     }
2800 }
2801
2802 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2803 {
2804     AVFormatContext *ic;
2805     AVInputFormat *file_iformat = NULL;
2806     int err, i, ret;
2807     int64_t timestamp;
2808     uint8_t buf[128];
2809     AVDictionary **opts;
2810     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2811
2812     if (o->format) {
2813         if (!(file_iformat = av_find_input_format(o->format))) {
2814             fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2815             exit_program(1);
2816         }
2817     }
2818
2819     if (!strcmp(filename, "-"))
2820         filename = "pipe:";
2821
2822     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2823                     !strcmp(filename, "/dev/stdin");
2824
2825     /* get default parameters from command line */
2826     ic = avformat_alloc_context();
2827     if (!ic) {
2828         print_error(filename, AVERROR(ENOMEM));
2829         exit_program(1);
2830     }
2831     if (o->nb_audio_sample_rate) {
2832         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2833         av_dict_set(&format_opts, "sample_rate", buf, 0);
2834     }
2835     if (o->nb_audio_channels) {
2836         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2837         av_dict_set(&format_opts, "channels", buf, 0);
2838     }
2839     if (o->nb_frame_rates) {
2840         av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2841     }
2842     if (o->nb_frame_sizes) {
2843         av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2844     }
2845     if (o->nb_frame_pix_fmts)
2846         av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2847
2848     ic->flags |= AVFMT_FLAG_NONBLOCK;
2849
2850     /* open the input file with generic libav function */
2851     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2852     if (err < 0) {
2853         print_error(filename, err);
2854         exit_program(1);
2855     }
2856     assert_avoptions(format_opts);
2857
2858     /* apply forced codec ids */
2859     for (i = 0; i < ic->nb_streams; i++)
2860         choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2861
2862     /* Set AVCodecContext options for avformat_find_stream_info */
2863     opts = setup_find_stream_info_opts(ic, codec_opts);
2864     orig_nb_streams = ic->nb_streams;
2865
2866     /* If not enough info to get the stream parameters, we decode the
2867        first frames to get it. (used in mpeg case for example) */
2868     ret = avformat_find_stream_info(ic, opts);
2869     if (ret < 0 && verbose >= 0) {
2870         fprintf(stderr, "%s: could not find codec parameters\n", filename);
2871         av_close_input_file(ic);
2872         exit_program(1);
2873     }
2874
2875     timestamp = o->start_time;
2876     /* add the stream start time */
2877     if (ic->start_time != AV_NOPTS_VALUE)
2878         timestamp += ic->start_time;
2879
2880     /* if seeking requested, we execute it */
2881     if (o->start_time != 0) {
2882         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2883         if (ret < 0) {
2884             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2885                     filename, (double)timestamp / AV_TIME_BASE);
2886         }
2887     }
2888
2889     /* update the current parameters so that they match the one of the input stream */
2890     add_input_streams(o, ic);
2891
2892     /* dump the file content */
2893     if (verbose >= 0)
2894         av_dump_format(ic, nb_input_files, filename, 0);
2895
2896     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2897     input_files[nb_input_files - 1].ctx        = ic;
2898     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
2899     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
2900     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
2901
2902     for (i = 0; i < orig_nb_streams; i++)
2903         av_dict_free(&opts[i]);
2904     av_freep(&opts);
2905
2906     reset_options(o);
2907     return 0;
2908 }
2909
2910 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2911                                     AVCodecContext *avctx)
2912 {
2913     char *p;
2914     int n = 1, i;
2915     int64_t t;
2916
2917     for (p = kf; *p; p++)
2918         if (*p == ',')
2919             n++;
2920     ost->forced_kf_count = n;
2921     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2922     if (!ost->forced_kf_pts) {
2923         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2924         exit_program(1);
2925     }
2926     for (i = 0; i < n; i++) {
2927         p = i ? strchr(p, ',') + 1 : kf;
2928         t = parse_time_or_die("force_key_frames", p, 1);
2929         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2930     }
2931 }
2932
2933 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
2934 {
2935     OutputStream *ost;
2936     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
2937     int idx      = oc->nb_streams - 1;
2938     int64_t max_frames = INT64_MAX;
2939     char *bsf = NULL, *next, *codec_tag = NULL;
2940     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
2941     double qscale = -1;
2942
2943     if (!st) {
2944         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
2945         exit_program(1);
2946     }
2947
2948     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
2949                                 nb_output_streams + 1);
2950     ost = &output_streams[nb_output_streams - 1];
2951     ost->file_index = nb_output_files;
2952     ost->index = idx;
2953     ost->st    = st;
2954     st->codec->codec_type = type;
2955     ost->enc = choose_codec(o, oc, st, type);
2956     if (ost->enc) {
2957         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
2958     }
2959
2960     avcodec_get_context_defaults3(st->codec, ost->enc);
2961     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
2962
2963     MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
2964     ost->max_frames = max_frames;
2965
2966     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
2967     while (bsf) {
2968         if (next = strchr(bsf, ','))
2969             *next++ = 0;
2970         if (!(bsfc = av_bitstream_filter_init(bsf))) {
2971             av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
2972             exit_program(1);
2973         }
2974         if (bsfc_prev)
2975             bsfc_prev->next = bsfc;
2976         else
2977             ost->bitstream_filters = bsfc;
2978
2979         bsfc_prev = bsfc;
2980         bsf       = next;
2981     }
2982
2983     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
2984     if (codec_tag) {
2985         uint32_t tag = strtol(codec_tag, &next, 0);
2986         if (*next)
2987             tag = AV_RL32(codec_tag);
2988         st->codec->codec_tag = tag;
2989     }
2990
2991     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
2992     if (qscale >= 0 || same_quant) {
2993         st->codec->flags |= CODEC_FLAG_QSCALE;
2994         st->codec->global_quality = FF_QP2LAMBDA * qscale;
2995     }
2996
2997     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2998     return ost;
2999 }
3000
3001 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3002 {
3003     int i;
3004     const char *p = str;
3005     for(i = 0;; i++) {
3006         dest[i] = atoi(p);
3007         if(i == 63)
3008             break;
3009         p = strchr(p, ',');
3010         if(!p) {
3011             fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3012             exit_program(1);
3013         }
3014         p++;
3015     }
3016 }
3017
3018 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3019 {
3020     AVStream *st;
3021     OutputStream *ost;
3022     AVCodecContext *video_enc;
3023
3024     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3025     st  = ost->st;
3026     if (!st->stream_copy) {
3027 #if CONFIG_AVFILTER
3028         ost->avfilter= vfilters;
3029         vfilters = NULL;
3030 #endif
3031     }
3032
3033     video_enc = st->codec;
3034
3035     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3036         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3037     }
3038
3039     if (!st->stream_copy) {
3040         const char *p = NULL;
3041         char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3042         char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3043         char *intra_matrix = NULL, *inter_matrix = NULL;
3044         int i, force_fps = 0, top_field_first = -1;
3045
3046         MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3047         if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3048             av_log(NULL, AV_LOG_ERROR, "Invalid framerate value: %s\n", frame_rate);
3049             exit_program(1);
3050         }
3051
3052         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3053         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3054             av_log(NULL, AV_LOG_ERROR, "Invalid frame size: %s.\n", frame_size);
3055             exit_program(1);
3056         }
3057
3058         MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3059         if (frame_aspect_ratio)
3060             ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3061
3062         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3063         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3064             av_log(NULL, AV_LOG_ERROR, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3065             exit_program(1);
3066         }
3067         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3068
3069         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3070         if (intra_matrix) {
3071             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3072                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for intra matrix.\n");
3073                 exit_program(1);
3074             }
3075             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3076         }
3077         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3078         if (inter_matrix) {
3079             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3080                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for inter matrix.\n");
3081                 exit_program(1);
3082             }
3083             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3084         }
3085
3086         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3087         for(i=0; p; i++){
3088             int start, end, q;
3089             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3090             if(e!=3){
3091                 fprintf(stderr, "error parsing rc_override\n");
3092                 exit_program(1);
3093             }
3094             video_enc->rc_override=
3095                 av_realloc(video_enc->rc_override,
3096                            sizeof(RcOverride)*(i+1));
3097             video_enc->rc_override[i].start_frame= start;
3098             video_enc->rc_override[i].end_frame  = end;
3099             if(q>0){
3100                 video_enc->rc_override[i].qscale= q;
3101                 video_enc->rc_override[i].quality_factor= 1.0;
3102             }
3103             else{
3104                 video_enc->rc_override[i].qscale= 0;
3105                 video_enc->rc_override[i].quality_factor= -q/100.0;
3106             }
3107             p= strchr(p, '/');
3108             if(p) p++;
3109         }
3110         video_enc->rc_override_count=i;
3111         if (!video_enc->rc_initial_buffer_occupancy)
3112             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3113         video_enc->intra_dc_precision= intra_dc_precision - 8;
3114
3115         /* two pass mode */
3116         if (do_pass) {
3117             if (do_pass == 1) {
3118                 video_enc->flags |= CODEC_FLAG_PASS1;
3119             } else {
3120                 video_enc->flags |= CODEC_FLAG_PASS2;
3121             }
3122         }
3123
3124         MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3125         if (forced_key_frames)
3126             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3127
3128         MATCH_PER_STREAM_OPT(force_fps, i, force_fps, oc, st);
3129         ost->force_fps = force_fps;
3130
3131         MATCH_PER_STREAM_OPT(top_field_first, i, top_field_first, oc, st);
3132         ost->top_field_first = top_field_first;
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     AVOutputFormat *oformat = NULL;