882f81782fc2421a7eb3aba264c860a02ae18b02
[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 top_field_first = -1;
108 static int intra_dc_precision = 8;
109 static int qp_hist = 0;
110 #if CONFIG_AVFILTER
111 static char *vfilters = NULL;
112 #endif
113
114 static int file_overwrite = 0;
115 static int do_benchmark = 0;
116 static int do_hex_dump = 0;
117 static int do_pkt_dump = 0;
118 static int do_pass = 0;
119 static char *pass_logfilename_prefix = NULL;
120 static int video_sync_method= -1;
121 static int audio_sync_method= 0;
122 static float audio_drift_threshold= 0.1;
123 static int copy_ts= 0;
124 static int copy_tb;
125 static int opt_shortest = 0;
126 static char *vstats_filename;
127 static FILE *vstats_file;
128 static int copy_initial_nonkeyframes = 0;
129
130 static int audio_volume = 256;
131
132 static int exit_on_error = 0;
133 static int using_stdin = 0;
134 static int verbose = 1;
135 static int64_t video_size = 0;
136 static int64_t audio_size = 0;
137 static int64_t extra_size = 0;
138 static int nb_frames_dup = 0;
139 static int nb_frames_drop = 0;
140 static int input_sync;
141
142 static float dts_delta_threshold = 10;
143
144 static uint8_t *audio_buf;
145 static uint8_t *audio_out;
146 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
147
148 static short *samples;
149
150 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
151
152 typedef struct InputStream {
153     int file_index;
154     AVStream *st;
155     int discard;             /* true if stream data should be discarded */
156     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
157     AVCodec *dec;
158
159     int64_t       start;     /* time when read started */
160     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
161                                 is not defined */
162     int64_t       pts;       /* current pts */
163     PtsCorrectionContext pts_ctx;
164     double ts_scale;
165     int is_start;            /* is 1 at the start and after a discontinuity */
166     int showed_multi_packet_warning;
167     AVDictionary *opts;
168 } InputStream;
169
170 typedef struct InputFile {
171     AVFormatContext *ctx;
172     int eof_reached;      /* true if eof reached */
173     int ist_index;        /* index of first stream in ist_table */
174     int buffer_size;      /* current total buffer size */
175     int64_t ts_offset;
176     int nb_streams;       /* number of stream that avconv is aware of; may be different
177                              from ctx.nb_streams if new streams appear during av_read_frame() */
178     int rate_emu;
179 } InputFile;
180
181 typedef struct OutputStream {
182     int file_index;          /* file index */
183     int index;               /* stream index in the output file */
184     int source_index;        /* InputStream index */
185     AVStream *st;            /* stream in the output file */
186     int encoding_needed;     /* true if encoding needed for this stream */
187     int frame_number;
188     /* input pts and corresponding output pts
189        for A/V sync */
190     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
191     struct InputStream *sync_ist; /* input stream to sync against */
192     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
193     AVBitStreamFilterContext *bitstream_filters;
194     AVCodec *enc;
195     int64_t max_frames;
196
197     /* video only */
198     int video_resample;
199     AVFrame pict_tmp;      /* temporary image for resampling */
200     struct SwsContext *img_resample_ctx; /* for image resampling */
201     int resample_height;
202     int resample_width;
203     int resample_pix_fmt;
204     AVRational frame_rate;
205     int force_fps;
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 } OptionsContext;
330
331 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
332 {\
333     int i, ret;\
334     for (i = 0; i < o->nb_ ## name; i++) {\
335         char *spec = o->name[i].specifier;\
336         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
337             outvar = o->name[i].u.type;\
338         else if (ret < 0)\
339             exit_program(1);\
340     }\
341 }
342
343 static void reset_options(OptionsContext *o)
344 {
345     const OptionDef *po = options;
346
347     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
348     while (po->name) {
349         void *dst = (uint8_t*)o + po->u.off;
350
351         if (po->flags & OPT_SPEC) {
352             SpecifierOpt **so = dst;
353             int i, *count = (int*)(so + 1);
354             for (i = 0; i < *count; i++) {
355                 av_freep(&(*so)[i].specifier);
356                 if (po->flags & OPT_STRING)
357                     av_freep(&(*so)[i].u.str);
358             }
359             av_freep(so);
360             *count = 0;
361         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
362             av_freep(dst);
363         po++;
364     }
365
366     av_freep(&o->stream_maps);
367     av_freep(&o->meta_data_maps);
368
369     memset(o, 0, sizeof(*o));
370
371     o->mux_preload    = 0.5;
372     o->mux_max_delay  = 0.7;
373     o->recording_time = INT64_MAX;
374     o->limit_filesize = UINT64_MAX;
375     o->chapters_input_file = INT_MAX;
376
377     uninit_opts();
378     init_opts();
379 }
380
381 #if CONFIG_AVFILTER
382
383 static int configure_video_filters(InputStream *ist, OutputStream *ost)
384 {
385     AVFilterContext *last_filter, *filter;
386     /** filter graph containing all filters including input & output */
387     AVCodecContext *codec = ost->st->codec;
388     AVCodecContext *icodec = ist->st->codec;
389     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
390     AVRational sample_aspect_ratio;
391     char args[255];
392     int ret;
393
394     ost->graph = avfilter_graph_alloc();
395
396     if (ist->st->sample_aspect_ratio.num){
397         sample_aspect_ratio = ist->st->sample_aspect_ratio;
398     }else
399         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
400
401     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
402              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
403              sample_aspect_ratio.num, sample_aspect_ratio.den);
404
405     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
406                                        "src", args, NULL, ost->graph);
407     if (ret < 0)
408         return ret;
409     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
410                                        "out", NULL, &ffsink_ctx, ost->graph);
411     if (ret < 0)
412         return ret;
413     last_filter = ost->input_video_filter;
414
415     if (codec->width  != icodec->width || codec->height != icodec->height) {
416         snprintf(args, 255, "%d:%d:flags=0x%X",
417                  codec->width,
418                  codec->height,
419                  ost->sws_flags);
420         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
421                                                 NULL, args, NULL, ost->graph)) < 0)
422             return ret;
423         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
424             return ret;
425         last_filter = filter;
426     }
427
428     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
429     ost->graph->scale_sws_opts = av_strdup(args);
430
431     if (ost->avfilter) {
432         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
433         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
434
435         outputs->name    = av_strdup("in");
436         outputs->filter_ctx = last_filter;
437         outputs->pad_idx = 0;
438         outputs->next    = NULL;
439
440         inputs->name    = av_strdup("out");
441         inputs->filter_ctx = ost->output_video_filter;
442         inputs->pad_idx = 0;
443         inputs->next    = NULL;
444
445         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
446             return ret;
447         av_freep(&ost->avfilter);
448     } else {
449         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
450             return ret;
451     }
452
453     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
454         return ret;
455
456     codec->width  = ost->output_video_filter->inputs[0]->w;
457     codec->height = ost->output_video_filter->inputs[0]->h;
458     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
459         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
460         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
461         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
462
463     return 0;
464 }
465 #endif /* CONFIG_AVFILTER */
466
467 static void term_exit(void)
468 {
469     av_log(NULL, AV_LOG_QUIET, "");
470 }
471
472 static volatile int received_sigterm = 0;
473 static volatile int received_nb_signals = 0;
474
475 static void
476 sigterm_handler(int sig)
477 {
478     received_sigterm = sig;
479     received_nb_signals++;
480     term_exit();
481 }
482
483 static void term_init(void)
484 {
485     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
486     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
487 #ifdef SIGXCPU
488     signal(SIGXCPU, sigterm_handler);
489 #endif
490 }
491
492 static int decode_interrupt_cb(void)
493 {
494     return received_nb_signals > 1;
495 }
496
497 void exit_program(int ret)
498 {
499     int i;
500
501     /* close files */
502     for(i=0;i<nb_output_files;i++) {
503         AVFormatContext *s = output_files[i].ctx;
504         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
505             avio_close(s->pb);
506         avformat_free_context(s);
507         av_dict_free(&output_files[i].opts);
508     }
509     for(i=0;i<nb_input_files;i++) {
510         av_close_input_file(input_files[i].ctx);
511     }
512     for (i = 0; i < nb_input_streams; i++)
513         av_dict_free(&input_streams[i].opts);
514
515     if (vstats_file)
516         fclose(vstats_file);
517     av_free(vstats_filename);
518
519     av_freep(&input_streams);
520     av_freep(&input_files);
521     av_freep(&output_streams);
522     av_freep(&output_files);
523
524     uninit_opts();
525     av_free(audio_buf);
526     av_free(audio_out);
527     allocated_audio_buf_size= allocated_audio_out_size= 0;
528     av_free(samples);
529
530 #if CONFIG_AVFILTER
531     avfilter_uninit();
532 #endif
533
534     if (received_sigterm) {
535         fprintf(stderr,
536             "Received signal %d: terminating.\n",
537             (int) received_sigterm);
538         exit (255);
539     }
540
541     exit(ret); /* not all OS-es handle main() return value */
542 }
543
544 static void assert_avoptions(AVDictionary *m)
545 {
546     AVDictionaryEntry *t;
547     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
548         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
549         exit_program(1);
550     }
551 }
552
553 static void assert_codec_experimental(AVCodecContext *c, int encoder)
554 {
555     const char *codec_string = encoder ? "encoder" : "decoder";
556     AVCodec *codec;
557     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
558         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
559         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
560                 "results.\nAdd '-strict experimental' if you want to use it.\n",
561                 codec_string, c->codec->name);
562         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
563         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
564             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
565                    codec_string, codec->name);
566         exit_program(1);
567     }
568 }
569
570 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
571 {
572     if(codec && codec->sample_fmts){
573         const enum AVSampleFormat *p= codec->sample_fmts;
574         for(; *p!=-1; p++){
575             if(*p == st->codec->sample_fmt)
576                 break;
577         }
578         if (*p == -1) {
579             av_log(NULL, AV_LOG_WARNING,
580                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
581                    av_get_sample_fmt_name(st->codec->sample_fmt),
582                    codec->name,
583                    av_get_sample_fmt_name(codec->sample_fmts[0]));
584             st->codec->sample_fmt = codec->sample_fmts[0];
585         }
586     }
587 }
588
589 /**
590  * Update the requested input sample format based on the output sample format.
591  * This is currently only used to request float output from decoders which
592  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
593  * Ideally this will be removed in the future when decoders do not do format
594  * conversion and only output in their native format.
595  */
596 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
597                               AVCodecContext *enc)
598 {
599     /* if sample formats match or a decoder sample format has already been
600        requested, just return */
601     if (enc->sample_fmt == dec->sample_fmt ||
602         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
603         return;
604
605     /* if decoder supports more than one output format */
606     if (dec_codec && dec_codec->sample_fmts &&
607         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
608         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
609         const enum AVSampleFormat *p;
610         int min_dec = -1, min_inc = -1;
611
612         /* find a matching sample format in the encoder */
613         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
614             if (*p == enc->sample_fmt) {
615                 dec->request_sample_fmt = *p;
616                 return;
617             } else if (*p > enc->sample_fmt) {
618                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
619             } else
620                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
621         }
622
623         /* if none match, provide the one that matches quality closest */
624         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
625                                   enc->sample_fmt - min_dec;
626     }
627 }
628
629 static void choose_sample_rate(AVStream *st, AVCodec *codec)
630 {
631     if(codec && codec->supported_samplerates){
632         const int *p= codec->supported_samplerates;
633         int best=0;
634         int best_dist=INT_MAX;
635         for(; *p; p++){
636             int dist= abs(st->codec->sample_rate - *p);
637             if(dist < best_dist){
638                 best_dist= dist;
639                 best= *p;
640             }
641         }
642         if(best_dist){
643             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
644         }
645         st->codec->sample_rate= best;
646     }
647 }
648
649 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
650 {
651     if(codec && codec->pix_fmts){
652         const enum PixelFormat *p= codec->pix_fmts;
653         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
654             if(st->codec->codec_id==CODEC_ID_MJPEG){
655                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
656             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
657                 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};
658             }
659         }
660         for(; *p!=-1; p++){
661             if(*p == st->codec->pix_fmt)
662                 break;
663         }
664         if (*p == -1) {
665             if(st->codec->pix_fmt != PIX_FMT_NONE)
666                 av_log(NULL, AV_LOG_WARNING,
667                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
668                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
669                         codec->name,
670                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
671             st->codec->pix_fmt = codec->pix_fmts[0];
672         }
673     }
674 }
675
676 static double
677 get_sync_ipts(const OutputStream *ost)
678 {
679     const InputStream *ist = ost->sync_ist;
680     OutputFile *of = &output_files[ost->file_index];
681     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
682 }
683
684 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
685     int ret;
686
687     while(bsfc){
688         AVPacket new_pkt= *pkt;
689         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
690                                           &new_pkt.data, &new_pkt.size,
691                                           pkt->data, pkt->size,
692                                           pkt->flags & AV_PKT_FLAG_KEY);
693         if(a>0){
694             av_free_packet(pkt);
695             new_pkt.destruct= av_destruct_packet;
696         } else if(a<0){
697             fprintf(stderr, "%s failed for stream %d, codec %s",
698                     bsfc->filter->name, pkt->stream_index,
699                     avctx->codec ? avctx->codec->name : "copy");
700             print_error("", a);
701             if (exit_on_error)
702                 exit_program(1);
703         }
704         *pkt= new_pkt;
705
706         bsfc= bsfc->next;
707     }
708
709     ret= av_interleaved_write_frame(s, pkt);
710     if(ret < 0){
711         print_error("av_interleaved_write_frame()", ret);
712         exit_program(1);
713     }
714 }
715
716 static void do_audio_out(AVFormatContext *s,
717                          OutputStream *ost,
718                          InputStream *ist,
719                          unsigned char *buf, int size)
720 {
721     uint8_t *buftmp;
722     int64_t audio_out_size, audio_buf_size;
723     int64_t allocated_for_size= size;
724
725     int size_out, frame_bytes, ret, resample_changed;
726     AVCodecContext *enc= ost->st->codec;
727     AVCodecContext *dec= ist->st->codec;
728     int osize = av_get_bytes_per_sample(enc->sample_fmt);
729     int isize = av_get_bytes_per_sample(dec->sample_fmt);
730     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
731
732 need_realloc:
733     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
734     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
735     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
736     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
737     audio_buf_size*= osize*enc->channels;
738
739     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
740     if(coded_bps > 8*osize)
741         audio_out_size= audio_out_size * coded_bps / (8*osize);
742     audio_out_size += FF_MIN_BUFFER_SIZE;
743
744     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
745         fprintf(stderr, "Buffer sizes too large\n");
746         exit_program(1);
747     }
748
749     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
750     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
751     if (!audio_buf || !audio_out){
752         fprintf(stderr, "Out of memory in do_audio_out\n");
753         exit_program(1);
754     }
755
756     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
757         ost->audio_resample = 1;
758
759     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
760                        ost->resample_channels    != dec->channels   ||
761                        ost->resample_sample_rate != dec->sample_rate;
762
763     if ((ost->audio_resample && !ost->resample) || resample_changed) {
764         if (resample_changed) {
765             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",
766                    ist->file_index, ist->st->index,
767                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
768                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
769             ost->resample_sample_fmt  = dec->sample_fmt;
770             ost->resample_channels    = dec->channels;
771             ost->resample_sample_rate = dec->sample_rate;
772             if (ost->resample)
773                 audio_resample_close(ost->resample);
774         }
775         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
776         if (audio_sync_method <= 1 &&
777             ost->resample_sample_fmt  == enc->sample_fmt &&
778             ost->resample_channels    == enc->channels   &&
779             ost->resample_sample_rate == enc->sample_rate) {
780             ost->resample = NULL;
781             ost->audio_resample = 0;
782         } else if (ost->audio_resample) {
783             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
784                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
785             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
786                                                    enc->sample_rate, dec->sample_rate,
787                                                    enc->sample_fmt,  dec->sample_fmt,
788                                                    16, 10, 0, 0.8);
789             if (!ost->resample) {
790                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
791                         dec->channels, dec->sample_rate,
792                         enc->channels, enc->sample_rate);
793                 exit_program(1);
794             }
795         }
796     }
797
798 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
799     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
800         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
801         if (ost->reformat_ctx)
802             av_audio_convert_free(ost->reformat_ctx);
803         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
804                                                    dec->sample_fmt, 1, NULL, 0);
805         if (!ost->reformat_ctx) {
806             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
807                 av_get_sample_fmt_name(dec->sample_fmt),
808                 av_get_sample_fmt_name(enc->sample_fmt));
809             exit_program(1);
810         }
811         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
812     }
813
814     if(audio_sync_method){
815         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
816                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
817         double idelta= delta*dec->sample_rate / enc->sample_rate;
818         int byte_delta= ((int)idelta)*2*dec->channels;
819
820         //FIXME resample delay
821         if(fabs(delta) > 50){
822             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
823                 if(byte_delta < 0){
824                     byte_delta= FFMAX(byte_delta, -size);
825                     size += byte_delta;
826                     buf  -= byte_delta;
827                     if(verbose > 2)
828                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
829                     if(!size)
830                         return;
831                     ist->is_start=0;
832                 }else{
833                     static uint8_t *input_tmp= NULL;
834                     input_tmp= av_realloc(input_tmp, byte_delta + size);
835
836                     if(byte_delta > allocated_for_size - size){
837                         allocated_for_size= byte_delta + (int64_t)size;
838                         goto need_realloc;
839                     }
840                     ist->is_start=0;
841
842                     memset(input_tmp, 0, byte_delta);
843                     memcpy(input_tmp + byte_delta, buf, size);
844                     buf= input_tmp;
845                     size += byte_delta;
846                     if(verbose > 2)
847                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
848                 }
849             }else if(audio_sync_method>1){
850                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
851                 av_assert0(ost->audio_resample);
852                 if(verbose > 2)
853                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
854 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
855                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
856             }
857         }
858     }else
859         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
860                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
861
862     if (ost->audio_resample) {
863         buftmp = audio_buf;
864         size_out = audio_resample(ost->resample,
865                                   (short *)buftmp, (short *)buf,
866                                   size / (dec->channels * isize));
867         size_out = size_out * enc->channels * osize;
868     } else {
869         buftmp = buf;
870         size_out = size;
871     }
872
873     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
874         const void *ibuf[6]= {buftmp};
875         void *obuf[6]= {audio_buf};
876         int istride[6]= {isize};
877         int ostride[6]= {osize};
878         int len= size_out/istride[0];
879         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
880             printf("av_audio_convert() failed\n");
881             if (exit_on_error)
882                 exit_program(1);
883             return;
884         }
885         buftmp = audio_buf;
886         size_out = len*osize;
887     }
888
889     /* now encode as many frames as possible */
890     if (enc->frame_size > 1) {
891         /* output resampled raw samples */
892         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
893             fprintf(stderr, "av_fifo_realloc2() failed\n");
894             exit_program(1);
895         }
896         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
897
898         frame_bytes = enc->frame_size * osize * enc->channels;
899
900         while (av_fifo_size(ost->fifo) >= frame_bytes) {
901             AVPacket pkt;
902             av_init_packet(&pkt);
903
904             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
905
906             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907
908             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
909                                        (short *)audio_buf);
910             if (ret < 0) {
911                 fprintf(stderr, "Audio encoding failed\n");
912                 exit_program(1);
913             }
914             audio_size += ret;
915             pkt.stream_index= ost->index;
916             pkt.data= audio_out;
917             pkt.size= ret;
918             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
919                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
920             pkt.flags |= AV_PKT_FLAG_KEY;
921             write_frame(s, &pkt, enc, ost->bitstream_filters);
922
923             ost->sync_opts += enc->frame_size;
924         }
925     } else {
926         AVPacket pkt;
927         av_init_packet(&pkt);
928
929         ost->sync_opts += size_out / (osize * enc->channels);
930
931         /* output a pcm frame */
932         /* determine the size of the coded buffer */
933         size_out /= osize;
934         if (coded_bps)
935             size_out = size_out*coded_bps/8;
936
937         if(size_out > audio_out_size){
938             fprintf(stderr, "Internal error, buffer size too small\n");
939             exit_program(1);
940         }
941
942         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
943         ret = avcodec_encode_audio(enc, audio_out, size_out,
944                                    (short *)buftmp);
945         if (ret < 0) {
946             fprintf(stderr, "Audio encoding failed\n");
947             exit_program(1);
948         }
949         audio_size += ret;
950         pkt.stream_index= ost->index;
951         pkt.data= audio_out;
952         pkt.size= ret;
953         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
954             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
955         pkt.flags |= AV_PKT_FLAG_KEY;
956         write_frame(s, &pkt, enc, ost->bitstream_filters);
957     }
958 }
959
960 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
961 {
962     AVCodecContext *dec;
963     AVPicture *picture2;
964     AVPicture picture_tmp;
965     uint8_t *buf = 0;
966
967     dec = ist->st->codec;
968
969     /* deinterlace : must be done before any resize */
970     if (do_deinterlace) {
971         int size;
972
973         /* create temporary picture */
974         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
975         buf = av_malloc(size);
976         if (!buf)
977             return;
978
979         picture2 = &picture_tmp;
980         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
981
982         if(avpicture_deinterlace(picture2, picture,
983                                  dec->pix_fmt, dec->width, dec->height) < 0) {
984             /* if error, do not deinterlace */
985             fprintf(stderr, "Deinterlacing failed\n");
986             av_free(buf);
987             buf = NULL;
988             picture2 = picture;
989         }
990     } else {
991         picture2 = picture;
992     }
993
994     if (picture != picture2)
995         *picture = *picture2;
996     *bufp = buf;
997 }
998
999 static void do_subtitle_out(AVFormatContext *s,
1000                             OutputStream *ost,
1001                             InputStream *ist,
1002                             AVSubtitle *sub,
1003                             int64_t pts)
1004 {
1005     static uint8_t *subtitle_out = NULL;
1006     int subtitle_out_max_size = 1024 * 1024;
1007     int subtitle_out_size, nb, i;
1008     AVCodecContext *enc;
1009     AVPacket pkt;
1010
1011     if (pts == AV_NOPTS_VALUE) {
1012         fprintf(stderr, "Subtitle packets must have a pts\n");
1013         if (exit_on_error)
1014             exit_program(1);
1015         return;
1016     }
1017
1018     enc = ost->st->codec;
1019
1020     if (!subtitle_out) {
1021         subtitle_out = av_malloc(subtitle_out_max_size);
1022     }
1023
1024     /* Note: DVB subtitle need one packet to draw them and one other
1025        packet to clear them */
1026     /* XXX: signal it in the codec context ? */
1027     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1028         nb = 2;
1029     else
1030         nb = 1;
1031
1032     for(i = 0; i < nb; i++) {
1033         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1034         // start_display_time is required to be 0
1035         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1036         sub->end_display_time -= sub->start_display_time;
1037         sub->start_display_time = 0;
1038         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1039                                                     subtitle_out_max_size, sub);
1040         if (subtitle_out_size < 0) {
1041             fprintf(stderr, "Subtitle encoding failed\n");
1042             exit_program(1);
1043         }
1044
1045         av_init_packet(&pkt);
1046         pkt.stream_index = ost->index;
1047         pkt.data = subtitle_out;
1048         pkt.size = subtitle_out_size;
1049         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1050         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1051             /* XXX: the pts correction is handled here. Maybe handling
1052                it in the codec would be better */
1053             if (i == 0)
1054                 pkt.pts += 90 * sub->start_display_time;
1055             else
1056                 pkt.pts += 90 * sub->end_display_time;
1057         }
1058         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1059     }
1060 }
1061
1062 static int bit_buffer_size= 1024*256;
1063 static uint8_t *bit_buffer= NULL;
1064
1065 static void do_video_resample(OutputStream *ost,
1066                               InputStream *ist,
1067                               AVFrame *in_picture,
1068                               AVFrame **out_picture)
1069 {
1070     int resample_changed = 0;
1071     AVCodecContext *dec = ist->st->codec;
1072     *out_picture = in_picture;
1073
1074     resample_changed = ost->resample_width   != dec->width  ||
1075                        ost->resample_height  != dec->height ||
1076                        ost->resample_pix_fmt != dec->pix_fmt;
1077
1078     if (resample_changed) {
1079         av_log(NULL, AV_LOG_INFO,
1080                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1081                ist->file_index, ist->st->index,
1082                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1083                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1084         if(!ost->video_resample)
1085             ost->video_resample = 1;
1086     }
1087
1088 #if !CONFIG_AVFILTER
1089     if (ost->video_resample) {
1090         *out_picture = &ost->pict_tmp;
1091         if (resample_changed) {
1092             /* initialize a new scaler context */
1093             sws_freeContext(ost->img_resample_ctx);
1094             ost->img_resample_ctx = sws_getContext(
1095                 ist->st->codec->width,
1096                 ist->st->codec->height,
1097                 ist->st->codec->pix_fmt,
1098                 ost->st->codec->width,
1099                 ost->st->codec->height,
1100                 ost->st->codec->pix_fmt,
1101                 ost->sws_flags, NULL, NULL, NULL);
1102             if (ost->img_resample_ctx == NULL) {
1103                 fprintf(stderr, "Cannot get resampling context\n");
1104                 exit_program(1);
1105             }
1106         }
1107         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1108               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1109     }
1110 #else
1111     if (resample_changed) {
1112         avfilter_graph_free(&ost->graph);
1113         if (configure_video_filters(ist, ost)) {
1114             fprintf(stderr, "Error reinitializing filters!\n");
1115             exit_program(1);
1116         }
1117     }
1118 #endif
1119     if (resample_changed) {
1120         ost->resample_width   = dec->width;
1121         ost->resample_height  = dec->height;
1122         ost->resample_pix_fmt = dec->pix_fmt;
1123     }
1124 }
1125
1126
1127 static void do_video_out(AVFormatContext *s,
1128                          OutputStream *ost,
1129                          InputStream *ist,
1130                          AVFrame *in_picture,
1131                          int *frame_size, float quality)
1132 {
1133     int nb_frames, i, ret, format_video_sync;
1134     AVFrame *final_picture;
1135     AVCodecContext *enc;
1136     double sync_ipts;
1137
1138     enc = ost->st->codec;
1139
1140     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1141
1142     /* by default, we output a single frame */
1143     nb_frames = 1;
1144
1145     *frame_size = 0;
1146
1147     format_video_sync = video_sync_method;
1148     if (format_video_sync < 0)
1149         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1150
1151     if (format_video_sync) {
1152         double vdelta = sync_ipts - ost->sync_opts;
1153         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1154         if (vdelta < -1.1)
1155             nb_frames = 0;
1156         else if (format_video_sync == 2) {
1157             if(vdelta<=-0.6){
1158                 nb_frames=0;
1159             }else if(vdelta>0.6)
1160                 ost->sync_opts= lrintf(sync_ipts);
1161         }else if (vdelta > 1.1)
1162             nb_frames = lrintf(vdelta);
1163 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1164         if (nb_frames == 0){
1165             ++nb_frames_drop;
1166             if (verbose>2)
1167                 fprintf(stderr, "*** drop!\n");
1168         }else if (nb_frames > 1) {
1169             nb_frames_dup += nb_frames - 1;
1170             if (verbose>2)
1171                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1172         }
1173     }else
1174         ost->sync_opts= lrintf(sync_ipts);
1175
1176     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1177     if (nb_frames <= 0)
1178         return;
1179
1180     do_video_resample(ost, ist, in_picture, &final_picture);
1181
1182     /* duplicates frame if needed */
1183     for(i=0;i<nb_frames;i++) {
1184         AVPacket pkt;
1185         av_init_packet(&pkt);
1186         pkt.stream_index= ost->index;
1187
1188         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1189             /* raw pictures are written as AVPicture structure to
1190                avoid any copies. We support temporarily the older
1191                method. */
1192             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1193             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1194             pkt.data= (uint8_t *)final_picture;
1195             pkt.size=  sizeof(AVPicture);
1196             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1197             pkt.flags |= AV_PKT_FLAG_KEY;
1198
1199             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1200         } else {
1201             AVFrame big_picture;
1202
1203             big_picture= *final_picture;
1204             /* better than nothing: use input picture interlaced
1205                settings */
1206             big_picture.interlaced_frame = in_picture->interlaced_frame;
1207             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1208                 if(top_field_first == -1)
1209                     big_picture.top_field_first = in_picture->top_field_first;
1210                 else
1211                     big_picture.top_field_first = top_field_first;
1212             }
1213
1214             /* handles same_quant here. This is not correct because it may
1215                not be a global option */
1216             big_picture.quality = quality;
1217             if (!enc->me_threshold)
1218                 big_picture.pict_type = 0;
1219 //            big_picture.pts = AV_NOPTS_VALUE;
1220             big_picture.pts= ost->sync_opts;
1221 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1222 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1223             if (ost->forced_kf_index < ost->forced_kf_count &&
1224                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1225                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1226                 ost->forced_kf_index++;
1227             }
1228             ret = avcodec_encode_video(enc,
1229                                        bit_buffer, bit_buffer_size,
1230                                        &big_picture);
1231             if (ret < 0) {
1232                 fprintf(stderr, "Video encoding failed\n");
1233                 exit_program(1);
1234             }
1235
1236             if(ret>0){
1237                 pkt.data= bit_buffer;
1238                 pkt.size= ret;
1239                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1240                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1241 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1242    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1243    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1244
1245                 if(enc->coded_frame->key_frame)
1246                     pkt.flags |= AV_PKT_FLAG_KEY;
1247                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1248                 *frame_size = ret;
1249                 video_size += ret;
1250                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1251                 //        enc->frame_number-1, ret, enc->pict_type);
1252                 /* if two pass, output log */
1253                 if (ost->logfile && enc->stats_out) {
1254                     fprintf(ost->logfile, "%s", enc->stats_out);
1255                 }
1256             }
1257         }
1258         ost->sync_opts++;
1259         ost->frame_number++;
1260     }
1261 }
1262
1263 static double psnr(double d){
1264     return -10.0*log(d)/log(10.0);
1265 }
1266
1267 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1268                            int frame_size)
1269 {
1270     AVCodecContext *enc;
1271     int frame_number;
1272     double ti1, bitrate, avg_bitrate;
1273
1274     /* this is executed just the first time do_video_stats is called */
1275     if (!vstats_file) {
1276         vstats_file = fopen(vstats_filename, "w");
1277         if (!vstats_file) {
1278             perror("fopen");
1279             exit_program(1);
1280         }
1281     }
1282
1283     enc = ost->st->codec;
1284     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1285         frame_number = ost->frame_number;
1286         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1287         if (enc->flags&CODEC_FLAG_PSNR)
1288             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1289
1290         fprintf(vstats_file,"f_size= %6d ", frame_size);
1291         /* compute pts value */
1292         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1293         if (ti1 < 0.01)
1294             ti1 = 0.01;
1295
1296         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1297         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1298         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1299             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1300         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1301     }
1302 }
1303
1304 static void print_report(OutputFile *output_files,
1305                          OutputStream *ost_table, int nb_ostreams,
1306                          int is_last_report, int64_t timer_start)
1307 {
1308     char buf[1024];
1309     OutputStream *ost;
1310     AVFormatContext *oc;
1311     int64_t total_size;
1312     AVCodecContext *enc;
1313     int frame_number, vid, i;
1314     double bitrate, ti1, pts;
1315     static int64_t last_time = -1;
1316     static int qp_histogram[52];
1317
1318     if (!is_last_report) {
1319         int64_t cur_time;
1320         /* display the report every 0.5 seconds */
1321         cur_time = av_gettime();
1322         if (last_time == -1) {
1323             last_time = cur_time;
1324             return;
1325         }
1326         if ((cur_time - last_time) < 500000)
1327             return;
1328         last_time = cur_time;
1329     }
1330
1331
1332     oc = output_files[0].ctx;
1333
1334     total_size = avio_size(oc->pb);
1335     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1336         total_size= avio_tell(oc->pb);
1337
1338     buf[0] = '\0';
1339     ti1 = 1e10;
1340     vid = 0;
1341     for(i=0;i<nb_ostreams;i++) {
1342         float q = -1;
1343         ost = &ost_table[i];
1344         enc = ost->st->codec;
1345         if (!ost->st->stream_copy && enc->coded_frame)
1346             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1347         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1348             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1349         }
1350         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1351             float t = (av_gettime()-timer_start) / 1000000.0;
1352
1353             frame_number = ost->frame_number;
1354             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1355                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1356             if(is_last_report)
1357                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1358             if(qp_hist){
1359                 int j;
1360                 int qp = lrintf(q);
1361                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1362                     qp_histogram[qp]++;
1363                 for(j=0; j<32; j++)
1364                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1365             }
1366             if (enc->flags&CODEC_FLAG_PSNR){
1367                 int j;
1368                 double error, error_sum=0;
1369                 double scale, scale_sum=0;
1370                 char type[3]= {'Y','U','V'};
1371                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1372                 for(j=0; j<3; j++){
1373                     if(is_last_report){
1374                         error= enc->error[j];
1375                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1376                     }else{
1377                         error= enc->coded_frame->error[j];
1378                         scale= enc->width*enc->height*255.0*255.0;
1379                     }
1380                     if(j) scale/=4;
1381                     error_sum += error;
1382                     scale_sum += scale;
1383                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1384                 }
1385                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1386             }
1387             vid = 1;
1388         }
1389         /* compute min output value */
1390         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1391         if ((pts < ti1) && (pts > 0))
1392             ti1 = pts;
1393     }
1394     if (ti1 < 0.01)
1395         ti1 = 0.01;
1396
1397     if (verbose > 0 || is_last_report) {
1398         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1399
1400         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1401             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1402             (double)total_size / 1024, ti1, bitrate);
1403
1404         if (nb_frames_dup || nb_frames_drop)
1405           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1406                   nb_frames_dup, nb_frames_drop);
1407
1408         if (verbose >= 0)
1409             fprintf(stderr, "%s    \r", buf);
1410
1411         fflush(stderr);
1412     }
1413
1414     if (is_last_report && verbose >= 0){
1415         int64_t raw= audio_size + video_size + extra_size;
1416         fprintf(stderr, "\n");
1417         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1418                 video_size/1024.0,
1419                 audio_size/1024.0,
1420                 extra_size/1024.0,
1421                 100.0*(total_size - raw)/raw
1422         );
1423     }
1424 }
1425
1426 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1427 {
1428     int fill_char = 0x00;
1429     if (sample_fmt == AV_SAMPLE_FMT_U8)
1430         fill_char = 0x80;
1431     memset(buf, fill_char, size);
1432 }
1433
1434 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1435 {
1436     int i, ret;
1437
1438     for (i = 0; i < nb_ostreams; i++) {
1439         OutputStream   *ost = &ost_table[i];
1440         AVCodecContext *enc = ost->st->codec;
1441         AVFormatContext *os = output_files[ost->file_index].ctx;
1442
1443         if (!ost->encoding_needed)
1444             continue;
1445
1446         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1447             continue;
1448         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1449             continue;
1450
1451         for(;;) {
1452             AVPacket pkt;
1453             int fifo_bytes;
1454             av_init_packet(&pkt);
1455             pkt.stream_index= ost->index;
1456
1457             switch (ost->st->codec->codec_type) {
1458             case AVMEDIA_TYPE_AUDIO:
1459                 fifo_bytes = av_fifo_size(ost->fifo);
1460                 ret = 0;
1461                 /* encode any samples remaining in fifo */
1462                 if (fifo_bytes > 0) {
1463                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1464                     int fs_tmp = enc->frame_size;
1465
1466                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1467                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1468                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1469                     } else { /* pad */
1470                         int frame_bytes = enc->frame_size*osize*enc->channels;
1471                         if (allocated_audio_buf_size < frame_bytes)
1472                             exit_program(1);
1473                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1474                     }
1475
1476                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1477                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1478                                               ost->st->time_base.num, enc->sample_rate);
1479                     enc->frame_size = fs_tmp;
1480                 }
1481                 if (ret <= 0) {
1482                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1483                 }
1484                 if (ret < 0) {
1485                     fprintf(stderr, "Audio encoding failed\n");
1486                     exit_program(1);
1487                 }
1488                 audio_size += ret;
1489                 pkt.flags |= AV_PKT_FLAG_KEY;
1490                 break;
1491             case AVMEDIA_TYPE_VIDEO:
1492                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1493                 if (ret < 0) {
1494                     fprintf(stderr, "Video encoding failed\n");
1495                     exit_program(1);
1496                 }
1497                 video_size += ret;
1498                 if(enc->coded_frame && enc->coded_frame->key_frame)
1499                     pkt.flags |= AV_PKT_FLAG_KEY;
1500                 if (ost->logfile && enc->stats_out) {
1501                     fprintf(ost->logfile, "%s", enc->stats_out);
1502                 }
1503                 break;
1504             default:
1505                 ret=-1;
1506             }
1507
1508             if (ret <= 0)
1509                 break;
1510             pkt.data = bit_buffer;
1511             pkt.size = ret;
1512             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1513                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1514             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1515         }
1516     }
1517 }
1518
1519 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1520 static int output_packet(InputStream *ist, int ist_index,
1521                          OutputStream *ost_table, int nb_ostreams,
1522                          const AVPacket *pkt)
1523 {
1524     AVFormatContext *os;
1525     OutputStream *ost;
1526     int ret, i;
1527     int got_output;
1528     AVFrame picture;
1529     void *buffer_to_free = NULL;
1530     static unsigned int samples_size= 0;
1531     AVSubtitle subtitle, *subtitle_to_free;
1532     int64_t pkt_pts = AV_NOPTS_VALUE;
1533 #if CONFIG_AVFILTER
1534     int frame_available;
1535 #endif
1536     float quality;
1537
1538     AVPacket avpkt;
1539     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1540
1541     if(ist->next_pts == AV_NOPTS_VALUE)
1542         ist->next_pts= ist->pts;
1543
1544     if (pkt == NULL) {
1545         /* EOF handling */
1546         av_init_packet(&avpkt);
1547         avpkt.data = NULL;
1548         avpkt.size = 0;
1549         goto handle_eof;
1550     } else {
1551         avpkt = *pkt;
1552     }
1553
1554     if(pkt->dts != AV_NOPTS_VALUE)
1555         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1556     if(pkt->pts != AV_NOPTS_VALUE)
1557         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1558
1559     //while we have more to decode or while the decoder did output something on EOF
1560     while (avpkt.size > 0 || (!pkt && got_output)) {
1561         uint8_t *data_buf, *decoded_data_buf;
1562         int data_size, decoded_data_size;
1563     handle_eof:
1564         ist->pts= ist->next_pts;
1565
1566         if(avpkt.size && avpkt.size != pkt->size &&
1567            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1568             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1569             ist->showed_multi_packet_warning=1;
1570         }
1571
1572         /* decode the packet if needed */
1573         decoded_data_buf = NULL; /* fail safe */
1574         decoded_data_size= 0;
1575         data_buf  = avpkt.data;
1576         data_size = avpkt.size;
1577         subtitle_to_free = NULL;
1578         if (ist->decoding_needed) {
1579             switch(ist->st->codec->codec_type) {
1580             case AVMEDIA_TYPE_AUDIO:{
1581                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1582                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1583                     av_free(samples);
1584                     samples= av_malloc(samples_size);
1585                 }
1586                 decoded_data_size= samples_size;
1587                     /* XXX: could avoid copy if PCM 16 bits with same
1588                        endianness as CPU */
1589                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1590                                             &avpkt);
1591                 if (ret < 0)
1592                     return ret;
1593                 avpkt.data += ret;
1594                 avpkt.size -= ret;
1595                 data_size   = ret;
1596                 got_output  = decoded_data_size > 0;
1597                 /* Some bug in mpeg audio decoder gives */
1598                 /* decoded_data_size < 0, it seems they are overflows */
1599                 if (!got_output) {
1600                     /* no audio frame */
1601                     continue;
1602                 }
1603                 decoded_data_buf = (uint8_t *)samples;
1604                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1605                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1606                 break;}
1607             case AVMEDIA_TYPE_VIDEO:
1608                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1609                     /* XXX: allocate picture correctly */
1610                     avcodec_get_frame_defaults(&picture);
1611                     avpkt.pts = pkt_pts;
1612                     avpkt.dts = ist->pts;
1613                     pkt_pts = AV_NOPTS_VALUE;
1614
1615                     ret = avcodec_decode_video2(ist->st->codec,
1616                                                 &picture, &got_output, &avpkt);
1617                     quality = same_quant ? picture.quality : 0;
1618                     if (ret < 0)
1619                         return ret;
1620                     if (!got_output) {
1621                         /* no picture yet */
1622                         goto discard_packet;
1623                     }
1624                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1625                     if (ist->st->codec->time_base.num != 0) {
1626                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1627                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1628                                           ist->st->codec->time_base.num * ticks) /
1629                             ist->st->codec->time_base.den;
1630                     }
1631                     avpkt.size = 0;
1632                     buffer_to_free = NULL;
1633                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1634                     break;
1635             case AVMEDIA_TYPE_SUBTITLE:
1636                 ret = avcodec_decode_subtitle2(ist->st->codec,
1637                                                &subtitle, &got_output, &avpkt);
1638                 if (ret < 0)
1639                     return ret;
1640                 if (!got_output) {
1641                     goto discard_packet;
1642                 }
1643                 subtitle_to_free = &subtitle;
1644                 avpkt.size = 0;
1645                 break;
1646             default:
1647                 return -1;
1648             }
1649         } else {
1650             switch(ist->st->codec->codec_type) {
1651             case AVMEDIA_TYPE_AUDIO:
1652                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1653                     ist->st->codec->sample_rate;
1654                 break;
1655             case AVMEDIA_TYPE_VIDEO:
1656                 if (ist->st->codec->time_base.num != 0) {
1657                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1658                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1659                                       ist->st->codec->time_base.num * ticks) /
1660                         ist->st->codec->time_base.den;
1661                 }
1662                 break;
1663             }
1664             avpkt.size = 0;
1665         }
1666
1667         // preprocess audio (volume)
1668         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1669             if (audio_volume != 256) {
1670                 short *volp;
1671                 volp = samples;
1672                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1673                     int v = ((*volp) * audio_volume + 128) >> 8;
1674                     *volp++ = av_clip_int16(v);
1675                 }
1676             }
1677         }
1678
1679         /* frame rate emulation */
1680         if (input_files[ist->file_index].rate_emu) {
1681             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1682             int64_t now = av_gettime() - ist->start;
1683             if (pts > now)
1684                 usleep(pts - now);
1685         }
1686         /* if output time reached then transcode raw format,
1687            encode packets and output them */
1688         for (i = 0; i < nb_ostreams; i++) {
1689             OutputFile *of = &output_files[ost_table[i].file_index];
1690             int frame_size;
1691
1692             ost = &ost_table[i];
1693             if (ost->source_index != ist_index)
1694                 continue;
1695
1696             if (of->start_time && ist->pts < of->start_time)
1697                 continue;
1698
1699             if (of->recording_time != INT64_MAX &&
1700                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1701                               (AVRational){1, 1000000}) >= 0) {
1702                 ost->is_past_recording_time = 1;
1703                 continue;
1704             }
1705
1706 #if CONFIG_AVFILTER
1707             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1708                 ost->input_video_filter) {
1709                 AVRational sar;
1710                 if (ist->st->sample_aspect_ratio.num)
1711                     sar = ist->st->sample_aspect_ratio;
1712                 else
1713                     sar = ist->st->codec->sample_aspect_ratio;
1714                 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1715             }
1716             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1717                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1718             while (frame_available) {
1719                 AVRational ist_pts_tb;
1720                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1721                     get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1722                 if (ost->picref)
1723                     ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1724 #endif
1725                 os = output_files[ost->file_index].ctx;
1726
1727                 /* set the input output pts pairs */
1728                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1729
1730                 if (ost->encoding_needed) {
1731                     av_assert0(ist->decoding_needed);
1732                     switch(ost->st->codec->codec_type) {
1733                     case AVMEDIA_TYPE_AUDIO:
1734                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1735                         break;
1736                     case AVMEDIA_TYPE_VIDEO:
1737 #if CONFIG_AVFILTER
1738                         if (ost->picref->video && !ost->frame_aspect_ratio)
1739                             ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1740 #endif
1741                         do_video_out(os, ost, ist, &picture, &frame_size,
1742                                      same_quant ? quality : ost->st->codec->global_quality);
1743                         if (vstats_filename && frame_size)
1744                             do_video_stats(os, ost, frame_size);
1745                         break;
1746                     case AVMEDIA_TYPE_SUBTITLE:
1747                         do_subtitle_out(os, ost, ist, &subtitle,
1748                                         pkt->pts);
1749                         break;
1750                     default:
1751                         abort();
1752                     }
1753                 } else {
1754                     AVFrame avframe; //FIXME/XXX remove this
1755                     AVPacket opkt;
1756                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1757
1758                     av_init_packet(&opkt);
1759
1760                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1761 #if !CONFIG_AVFILTER
1762                         continue;
1763 #else
1764                         goto cont;
1765 #endif
1766
1767                     /* no reencoding needed : output the packet directly */
1768                     /* force the input stream PTS */
1769
1770                     avcodec_get_frame_defaults(&avframe);
1771                     ost->st->codec->coded_frame= &avframe;
1772                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1773
1774                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1775                         audio_size += data_size;
1776                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1777                         video_size += data_size;
1778                         ost->sync_opts++;
1779                     }
1780
1781                     opkt.stream_index= ost->index;
1782                     if(pkt->pts != AV_NOPTS_VALUE)
1783                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1784                     else
1785                         opkt.pts= AV_NOPTS_VALUE;
1786
1787                     if (pkt->dts == AV_NOPTS_VALUE)
1788                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1789                     else
1790                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1791                     opkt.dts -= ost_tb_start_time;
1792
1793                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1794                     opkt.flags= pkt->flags;
1795
1796                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1797                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1798                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1799                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1800                        ) {
1801                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1802                             opkt.destruct= av_destruct_packet;
1803                     } else {
1804                         opkt.data = data_buf;
1805                         opkt.size = data_size;
1806                     }
1807
1808                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1809                     ost->st->codec->frame_number++;
1810                     ost->frame_number++;
1811                     av_free_packet(&opkt);
1812                 }
1813 #if CONFIG_AVFILTER
1814                 cont:
1815                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1816                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1817                 if (ost->picref)
1818                     avfilter_unref_buffer(ost->picref);
1819             }
1820 #endif
1821             }
1822
1823         av_free(buffer_to_free);
1824         /* XXX: allocate the subtitles in the codec ? */
1825         if (subtitle_to_free) {
1826             avsubtitle_free(subtitle_to_free);
1827             subtitle_to_free = NULL;
1828         }
1829     }
1830  discard_packet:
1831
1832     return 0;
1833 }
1834
1835 static void print_sdp(OutputFile *output_files, int n)
1836 {
1837     char sdp[2048];
1838     int i;
1839     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1840
1841     if (!avc)
1842         exit_program(1);
1843     for (i = 0; i < n; i++)
1844         avc[i] = output_files[i].ctx;
1845
1846     av_sdp_create(avc, n, sdp, sizeof(sdp));
1847     printf("SDP:\n%s\n", sdp);
1848     fflush(stdout);
1849     av_freep(&avc);
1850 }
1851
1852 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1853                              char *error, int error_len)
1854 {
1855     int i;
1856     InputStream *ist = &input_streams[ist_index];
1857     if (ist->decoding_needed) {
1858         AVCodec *codec = ist->dec;
1859         if (!codec) {
1860             snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1861                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1862             return AVERROR(EINVAL);
1863         }
1864
1865         /* update requested sample format for the decoder based on the
1866            corresponding encoder sample format */
1867         for (i = 0; i < nb_output_streams; i++) {
1868             OutputStream *ost = &output_streams[i];
1869             if (ost->source_index == ist_index) {
1870                 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1871                 break;
1872             }
1873         }
1874
1875         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1876             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1877                     ist->file_index, ist->st->index);
1878             return AVERROR(EINVAL);
1879         }
1880         assert_codec_experimental(ist->st->codec, 0);
1881         assert_avoptions(ist->opts);
1882     }
1883
1884     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;
1885     ist->next_pts = AV_NOPTS_VALUE;
1886     init_pts_correction(&ist->pts_ctx);
1887     ist->is_start = 1;
1888
1889     return 0;
1890 }
1891
1892 static int transcode_init(OutputFile *output_files,
1893                           int nb_output_files,
1894                           InputFile *input_files,
1895                           int nb_input_files)
1896 {
1897     int ret = 0, i, j, k;
1898     AVFormatContext *os;
1899     AVCodecContext *codec, *icodec;
1900     OutputStream *ost;
1901     InputStream *ist;
1902     char error[1024];
1903     int want_sdp = 1;
1904
1905     /* init framerate emulation */
1906     for (i = 0; i < nb_input_files; i++) {
1907         InputFile *ifile = &input_files[i];
1908         if (ifile->rate_emu)
1909             for (j = 0; j < ifile->nb_streams; j++)
1910                 input_streams[j + ifile->ist_index].start = av_gettime();
1911     }
1912
1913     /* output stream init */
1914     for(i=0;i<nb_output_files;i++) {
1915         os = output_files[i].ctx;
1916         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1917             av_dump_format(os, i, os->filename, 1);
1918             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1919             return AVERROR(EINVAL);
1920         }
1921     }
1922
1923     /* for each output stream, we compute the right encoding parameters */
1924     for (i = 0; i < nb_output_streams; i++) {
1925         ost = &output_streams[i];
1926         os = output_files[ost->file_index].ctx;
1927         ist = &input_streams[ost->source_index];
1928
1929         codec = ost->st->codec;
1930         icodec = ist->st->codec;
1931
1932         ost->st->disposition = ist->st->disposition;
1933         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1934         codec->chroma_sample_location = icodec->chroma_sample_location;
1935
1936         if (ost->st->stream_copy) {
1937             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1938
1939             if (extra_size > INT_MAX) {
1940                 return AVERROR(EINVAL);
1941             }
1942
1943             /* if stream_copy is selected, no need to decode or encode */
1944             codec->codec_id = icodec->codec_id;
1945             codec->codec_type = icodec->codec_type;
1946
1947             if(!codec->codec_tag){
1948                 if(   !os->oformat->codec_tag
1949                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1950                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1951                     codec->codec_tag = icodec->codec_tag;
1952             }
1953
1954             codec->bit_rate = icodec->bit_rate;
1955             codec->rc_max_rate    = icodec->rc_max_rate;
1956             codec->rc_buffer_size = icodec->rc_buffer_size;
1957             codec->extradata= av_mallocz(extra_size);
1958             if (!codec->extradata) {
1959                 return AVERROR(ENOMEM);
1960             }
1961             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1962             codec->extradata_size= icodec->extradata_size;
1963             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){
1964                 codec->time_base = icodec->time_base;
1965                 codec->time_base.num *= icodec->ticks_per_frame;
1966                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1967                           codec->time_base.num, codec->time_base.den, INT_MAX);
1968             }else
1969                 codec->time_base = ist->st->time_base;
1970             switch(codec->codec_type) {
1971             case AVMEDIA_TYPE_AUDIO:
1972                 if(audio_volume != 256) {
1973                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1974                     exit_program(1);
1975                 }
1976                 codec->channel_layout = icodec->channel_layout;
1977                 codec->sample_rate = icodec->sample_rate;
1978                 codec->channels = icodec->channels;
1979                 codec->frame_size = icodec->frame_size;
1980                 codec->audio_service_type = icodec->audio_service_type;
1981                 codec->block_align= icodec->block_align;
1982                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1983                     codec->block_align= 0;
1984                 if(codec->codec_id == CODEC_ID_AC3)
1985                     codec->block_align= 0;
1986                 break;
1987             case AVMEDIA_TYPE_VIDEO:
1988                 codec->pix_fmt = icodec->pix_fmt;
1989                 codec->width = icodec->width;
1990                 codec->height = icodec->height;
1991                 codec->has_b_frames = icodec->has_b_frames;
1992                 if (!codec->sample_aspect_ratio.num) {
1993                     codec->sample_aspect_ratio =
1994                     ost->st->sample_aspect_ratio =
1995                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1996                         ist->st->codec->sample_aspect_ratio.num ?
1997                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1998                 }
1999                 break;
2000             case AVMEDIA_TYPE_SUBTITLE:
2001                 codec->width = icodec->width;
2002                 codec->height = icodec->height;
2003                 break;
2004             case AVMEDIA_TYPE_DATA:
2005                 break;
2006             default:
2007                 abort();
2008             }
2009         } else {
2010             if (!ost->enc)
2011                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2012             switch(codec->codec_type) {
2013             case AVMEDIA_TYPE_AUDIO:
2014                 ost->fifo= av_fifo_alloc(1024);
2015                 if (!ost->fifo) {
2016                     return AVERROR(ENOMEM);
2017                 }
2018                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2019                 if (!codec->sample_rate) {
2020                     codec->sample_rate = icodec->sample_rate;
2021                     if (icodec->lowres)
2022                         codec->sample_rate >>= icodec->lowres;
2023                 }
2024                 choose_sample_rate(ost->st, ost->enc);
2025                 codec->time_base = (AVRational){1, codec->sample_rate};
2026                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2027                     codec->sample_fmt = icodec->sample_fmt;
2028                 choose_sample_fmt(ost->st, ost->enc);
2029                 if (!codec->channels)
2030                     codec->channels = icodec->channels;
2031                 codec->channel_layout = icodec->channel_layout;
2032                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2033                     codec->channel_layout = 0;
2034                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2035                 icodec->request_channels = codec->channels;
2036                 ist->decoding_needed = 1;
2037                 ost->encoding_needed = 1;
2038                 ost->resample_sample_fmt  = icodec->sample_fmt;
2039                 ost->resample_sample_rate = icodec->sample_rate;
2040                 ost->resample_channels    = icodec->channels;
2041                 break;
2042             case AVMEDIA_TYPE_VIDEO:
2043                 if (codec->pix_fmt == PIX_FMT_NONE)
2044                     codec->pix_fmt = icodec->pix_fmt;
2045                 choose_pixel_fmt(ost->st, ost->enc);
2046
2047                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2048                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2049                     exit_program(1);
2050                 }
2051
2052                 if (!codec->width || !codec->height) {
2053                     codec->width  = icodec->width;
2054                     codec->height = icodec->height;
2055                 }
2056
2057                 ost->video_resample = codec->width   != icodec->width  ||
2058                                       codec->height  != icodec->height ||
2059                                       codec->pix_fmt != icodec->pix_fmt;
2060                 if (ost->video_resample) {
2061 #if !CONFIG_AVFILTER
2062                     avcodec_get_frame_defaults(&ost->pict_tmp);
2063                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2064                                        codec->width, codec->height)) {
2065                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2066                         exit_program(1);
2067                     }
2068                     ost->img_resample_ctx = sws_getContext(
2069                         icodec->width,
2070                         icodec->height,
2071                         icodec->pix_fmt,
2072                         codec->width,
2073                         codec->height,
2074                         codec->pix_fmt,
2075                         ost->sws_flags, NULL, NULL, NULL);
2076                     if (ost->img_resample_ctx == NULL) {
2077                         fprintf(stderr, "Cannot get resampling context\n");
2078                         exit_program(1);
2079                     }
2080 #endif
2081                     codec->bits_per_raw_sample= 0;
2082                 }
2083
2084                 ost->resample_height = icodec->height;
2085                 ost->resample_width  = icodec->width;
2086                 ost->resample_pix_fmt= icodec->pix_fmt;
2087                 ost->encoding_needed = 1;
2088                 ist->decoding_needed = 1;
2089
2090                 if (!ost->frame_rate.num)
2091                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2092                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2093                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2094                     ost->frame_rate = ost->enc->supported_framerates[idx];
2095                 }
2096                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2097
2098 #if CONFIG_AVFILTER
2099                 if (configure_video_filters(ist, ost)) {
2100                     fprintf(stderr, "Error opening filters!\n");
2101                     exit(1);
2102                 }
2103 #endif
2104                 break;
2105             case AVMEDIA_TYPE_SUBTITLE:
2106                 ost->encoding_needed = 1;
2107                 ist->decoding_needed = 1;
2108                 break;
2109             default:
2110                 abort();
2111                 break;
2112             }
2113             /* two pass mode */
2114             if (ost->encoding_needed &&
2115                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2116                 char logfilename[1024];
2117                 FILE *f;
2118
2119                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2120                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2121                          i);
2122                 if (codec->flags & CODEC_FLAG_PASS1) {
2123                     f = fopen(logfilename, "wb");
2124                     if (!f) {
2125                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2126                         exit_program(1);
2127                     }
2128                     ost->logfile = f;
2129                 } else {
2130                     char  *logbuffer;
2131                     size_t logbuffer_size;
2132                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2133                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2134                         exit_program(1);
2135                     }
2136                     codec->stats_in = logbuffer;
2137                 }
2138             }
2139         }
2140         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2141             int size= codec->width * codec->height;
2142             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2143         }
2144     }
2145
2146     if (!bit_buffer)
2147         bit_buffer = av_malloc(bit_buffer_size);
2148     if (!bit_buffer) {
2149         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2150                 bit_buffer_size);
2151         return AVERROR(ENOMEM);
2152     }
2153
2154     /* open each encoder */
2155     for (i = 0; i < nb_output_streams; i++) {
2156         ost = &output_streams[i];
2157         if (ost->encoding_needed) {
2158             AVCodec *codec = ost->enc;
2159             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2160             if (!codec) {
2161                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2162                          ost->st->codec->codec_id, ost->file_index, ost->index);
2163                 ret = AVERROR(EINVAL);
2164                 goto dump_format;
2165             }
2166             if (dec->subtitle_header) {
2167                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2168                 if (!ost->st->codec->subtitle_header) {
2169                     ret = AVERROR(ENOMEM);
2170                     goto dump_format;
2171                 }
2172                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2173                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2174             }
2175             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2176                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2177                         ost->file_index, ost->index);
2178                 ret = AVERROR(EINVAL);
2179                 goto dump_format;
2180             }
2181             assert_codec_experimental(ost->st->codec, 1);
2182             assert_avoptions(ost->opts);
2183             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2184                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2185                                              "It takes bits/s as argument, not kbits/s\n");
2186             extra_size += ost->st->codec->extradata_size;
2187
2188             if (ost->st->codec->me_threshold)
2189                 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2190         }
2191     }
2192
2193     /* init input streams */
2194     for (i = 0; i < nb_input_streams; i++)
2195         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2196             goto dump_format;
2197
2198     /* discard unused programs */
2199     for (i = 0; i < nb_input_files; i++) {
2200         InputFile *ifile = &input_files[i];
2201         for (j = 0; j < ifile->ctx->nb_programs; j++) {
2202             AVProgram *p = ifile->ctx->programs[j];
2203             int discard  = AVDISCARD_ALL;
2204
2205             for (k = 0; k < p->nb_stream_indexes; k++)
2206                 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2207                     discard = AVDISCARD_DEFAULT;
2208                     break;
2209                 }
2210             p->discard = discard;
2211         }
2212     }
2213
2214     /* open files and write file headers */
2215     for (i = 0; i < nb_output_files; i++) {
2216         os = output_files[i].ctx;
2217         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2218             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2219             ret = AVERROR(EINVAL);
2220             goto dump_format;
2221         }
2222         assert_avoptions(output_files[i].opts);
2223         if (strcmp(os->oformat->name, "rtp")) {
2224             want_sdp = 0;
2225         }
2226     }
2227
2228  dump_format:
2229     /* dump the file output parameters - cannot be done before in case
2230        of stream copy */
2231     for(i=0;i<nb_output_files;i++) {
2232         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2233     }
2234
2235     /* dump the stream mapping */
2236     if (verbose >= 0) {
2237         fprintf(stderr, "Stream mapping:\n");
2238         for (i = 0; i < nb_output_streams;i ++) {
2239             ost = &output_streams[i];
2240             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2241                     input_streams[ost->source_index].file_index,
2242                     input_streams[ost->source_index].st->index,
2243                     ost->file_index,
2244                     ost->index);
2245             if (ost->sync_ist != &input_streams[ost->source_index])
2246                 fprintf(stderr, " [sync #%d.%d]",
2247                         ost->sync_ist->file_index,
2248                         ost->sync_ist->st->index);
2249             if (ost->st->stream_copy)
2250                 fprintf(stderr, " (copy)");
2251             else
2252                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2253                         input_streams[ost->source_index].dec->name : "?",
2254                         ost->enc ? ost->enc->name : "?");
2255             fprintf(stderr, "\n");
2256         }
2257     }
2258
2259     if (ret) {
2260         fprintf(stderr, "%s\n", error);
2261         return ret;
2262     }
2263
2264     if (want_sdp) {
2265         print_sdp(output_files, nb_output_files);
2266     }
2267
2268     return 0;
2269 }
2270
2271 /*
2272  * The following code is the main loop of the file converter
2273  */
2274 static int transcode(OutputFile *output_files,
2275                      int nb_output_files,
2276                      InputFile *input_files,
2277                      int nb_input_files)
2278 {
2279     int ret, i;
2280     AVFormatContext *is, *os;
2281     OutputStream *ost;
2282     InputStream *ist;
2283     uint8_t *no_packet;
2284     int no_packet_count=0;
2285     int64_t timer_start;
2286
2287     if (!(no_packet = av_mallocz(nb_input_files)))
2288         exit_program(1);
2289
2290     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2291     if (ret < 0)
2292         goto fail;
2293
2294     if (verbose >= 0)
2295         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2296     term_init();
2297
2298     timer_start = av_gettime();
2299
2300     for(; received_sigterm == 0;) {
2301         int file_index, ist_index;
2302         AVPacket pkt;
2303         int64_t ipts_min;
2304         double opts_min;
2305
2306         ipts_min = INT64_MAX;
2307         opts_min= 1e100;
2308
2309         /* select the stream that we must read now by looking at the
2310            smallest output pts */
2311         file_index = -1;
2312         for (i = 0; i < nb_output_streams; i++) {
2313             OutputFile *of;
2314             int64_t ipts;
2315             double  opts;
2316             ost = &output_streams[i];
2317             of = &output_files[ost->file_index];
2318             os = output_files[ost->file_index].ctx;
2319             ist = &input_streams[ost->source_index];
2320             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2321                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2322                 continue;
2323             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2324             ipts = ist->pts;
2325             if (!input_files[ist->file_index].eof_reached){
2326                 if(ipts < ipts_min) {
2327                     ipts_min = ipts;
2328                     if(input_sync ) file_index = ist->file_index;
2329                 }
2330                 if(opts < opts_min) {
2331                     opts_min = opts;
2332                     if(!input_sync) file_index = ist->file_index;
2333                 }
2334             }
2335             if (ost->frame_number >= ost->max_frames) {
2336                 int j;
2337                 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2338                     output_streams[j].is_past_recording_time = 1;
2339                 continue;
2340             }
2341         }
2342         /* if none, if is finished */
2343         if (file_index < 0) {
2344             if(no_packet_count){
2345                 no_packet_count=0;
2346                 memset(no_packet, 0, nb_input_files);
2347                 usleep(10000);
2348                 continue;
2349             }
2350             break;
2351         }
2352
2353         /* read a frame from it and output it in the fifo */
2354         is = input_files[file_index].ctx;
2355         ret= av_read_frame(is, &pkt);
2356         if(ret == AVERROR(EAGAIN)){
2357             no_packet[file_index]=1;
2358             no_packet_count++;
2359             continue;
2360         }
2361         if (ret < 0) {
2362             input_files[file_index].eof_reached = 1;
2363             if (opt_shortest)
2364                 break;
2365             else
2366                 continue;
2367         }
2368
2369         no_packet_count=0;
2370         memset(no_packet, 0, nb_input_files);
2371
2372         if (do_pkt_dump) {
2373             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2374                              is->streams[pkt.stream_index]);
2375         }
2376         /* the following test is needed in case new streams appear
2377            dynamically in stream : we ignore them */
2378         if (pkt.stream_index >= input_files[file_index].nb_streams)
2379             goto discard_packet;
2380         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2381         ist = &input_streams[ist_index];
2382         if (ist->discard)
2383             goto discard_packet;
2384
2385         if (pkt.dts != AV_NOPTS_VALUE)
2386             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2387         if (pkt.pts != AV_NOPTS_VALUE)
2388             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2389
2390         if(pkt.pts != AV_NOPTS_VALUE)
2391             pkt.pts *= ist->ts_scale;
2392         if(pkt.dts != AV_NOPTS_VALUE)
2393             pkt.dts *= ist->ts_scale;
2394
2395 //        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);
2396         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2397             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2398             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2399             int64_t delta= pkt_dts - ist->next_pts;
2400             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2401                 input_files[ist->file_index].ts_offset -= delta;
2402                 if (verbose > 2)
2403                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2404                             delta, input_files[ist->file_index].ts_offset);
2405                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2406                 if(pkt.pts != AV_NOPTS_VALUE)
2407                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2408             }
2409         }
2410
2411         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2412         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2413
2414             if (verbose >= 0)
2415                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2416                         ist->file_index, ist->st->index);
2417             if (exit_on_error)
2418                 exit_program(1);
2419             av_free_packet(&pkt);
2420             continue;
2421         }
2422
2423     discard_packet:
2424         av_free_packet(&pkt);
2425
2426         /* dump report by using the output first video and audio streams */
2427         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2428     }
2429
2430     /* at the end of stream, we must flush the decoder buffers */
2431     for (i = 0; i < nb_input_streams; i++) {
2432         ist = &input_streams[i];
2433         if (ist->decoding_needed) {
2434             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2435         }
2436     }
2437     flush_encoders(output_streams, nb_output_streams);
2438
2439     term_exit();
2440
2441     /* write the trailer if needed and close file */
2442     for(i=0;i<nb_output_files;i++) {
2443         os = output_files[i].ctx;
2444         av_write_trailer(os);
2445     }
2446
2447     /* dump report by using the first video and audio streams */
2448     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2449
2450     /* close each encoder */
2451     for (i = 0; i < nb_output_streams; i++) {
2452         ost = &output_streams[i];
2453         if (ost->encoding_needed) {
2454             av_freep(&ost->st->codec->stats_in);
2455             avcodec_close(ost->st->codec);
2456         }
2457 #if CONFIG_AVFILTER
2458         avfilter_graph_free(&ost->graph);
2459 #endif
2460     }
2461
2462     /* close each decoder */
2463     for (i = 0; i < nb_input_streams; i++) {
2464         ist = &input_streams[i];
2465         if (ist->decoding_needed) {
2466             avcodec_close(ist->st->codec);
2467         }
2468     }
2469
2470     /* finished ! */
2471     ret = 0;
2472
2473  fail:
2474     av_freep(&bit_buffer);
2475     av_freep(&no_packet);
2476
2477     if (output_streams) {
2478         for (i = 0; i < nb_output_streams; i++) {
2479             ost = &output_streams[i];
2480             if (ost) {
2481                 if (ost->st->stream_copy)
2482                     av_freep(&ost->st->codec->extradata);
2483                 if (ost->logfile) {
2484                     fclose(ost->logfile);
2485                     ost->logfile = NULL;
2486                 }
2487                 av_fifo_free(ost->fifo); /* works even if fifo is not
2488                                              initialized but set to zero */
2489                 av_freep(&ost->st->codec->subtitle_header);
2490                 av_free(ost->pict_tmp.data[0]);
2491                 av_free(ost->forced_kf_pts);
2492                 if (ost->video_resample)
2493                     sws_freeContext(ost->img_resample_ctx);
2494                 if (ost->resample)
2495                     audio_resample_close(ost->resample);
2496                 if (ost->reformat_ctx)
2497                     av_audio_convert_free(ost->reformat_ctx);
2498                 av_dict_free(&ost->opts);
2499             }
2500         }
2501     }
2502     return ret;
2503 }
2504
2505 static int opt_verbose(const char *opt, const char *arg)
2506 {
2507     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2508     return 0;
2509 }
2510
2511 static double parse_frame_aspect_ratio(const char *arg)
2512 {
2513     int x = 0, y = 0;
2514     double ar = 0;
2515     const char *p;
2516     char *end;
2517
2518     p = strchr(arg, ':');
2519     if (p) {
2520         x = strtol(arg, &end, 10);
2521         if (end == p)
2522             y = strtol(end+1, &end, 10);
2523         if (x > 0 && y > 0)
2524             ar = (double)x / (double)y;
2525     } else
2526         ar = strtod(arg, NULL);
2527
2528     if (!ar) {
2529         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2530         exit_program(1);
2531     }
2532     return ar;
2533 }
2534
2535 static int opt_top_field_first(const char *opt, const char *arg)
2536 {
2537     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2538     return 0;
2539 }
2540
2541 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2542 {
2543     return parse_option(o, "codec:a", arg, options);
2544 }
2545
2546 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2547 {
2548     return parse_option(o, "codec:v", arg, options);
2549 }
2550
2551 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2552 {
2553     return parse_option(o, "codec:s", arg, options);
2554 }
2555
2556 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2557 {
2558     return parse_option(o, "codec:d", arg, options);
2559 }
2560
2561 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2562 {
2563     StreamMap *m = NULL;
2564     int i, negative = 0, file_idx;
2565     int sync_file_idx = -1, sync_stream_idx;
2566     char *p, *sync;
2567     char *map;
2568
2569     if (*arg == '-') {
2570         negative = 1;
2571         arg++;
2572     }
2573     map = av_strdup(arg);
2574
2575     /* parse sync stream first, just pick first matching stream */
2576     if (sync = strchr(map, ',')) {
2577         *sync = 0;
2578         sync_file_idx = strtol(sync + 1, &sync, 0);
2579         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2580             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2581             exit_program(1);
2582         }
2583         if (*sync)
2584             sync++;
2585         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2586             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2587                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2588                 sync_stream_idx = i;
2589                 break;
2590             }
2591         if (i == input_files[sync_file_idx].nb_streams) {
2592             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2593                                        "match any streams.\n", arg);
2594             exit_program(1);
2595         }
2596     }
2597
2598
2599     file_idx = strtol(map, &p, 0);
2600     if (file_idx >= nb_input_files || file_idx < 0) {
2601         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2602         exit_program(1);
2603     }
2604     if (negative)
2605         /* disable some already defined maps */
2606         for (i = 0; i < o->nb_stream_maps; i++) {
2607             m = &o->stream_maps[i];
2608             if (check_stream_specifier(input_files[m->file_index].ctx,
2609                                        input_files[m->file_index].ctx->streams[m->stream_index],
2610                                        *p == ':' ? p + 1 : p) > 0)
2611                 m->disabled = 1;
2612         }
2613     else
2614         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2615             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2616                         *p == ':' ? p + 1 : p) <= 0)
2617                 continue;
2618             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2619                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2620             m = &o->stream_maps[o->nb_stream_maps - 1];
2621
2622             m->file_index   = file_idx;
2623             m->stream_index = i;
2624
2625             if (sync_file_idx >= 0) {
2626                 m->sync_file_index   = sync_file_idx;
2627                 m->sync_stream_index = sync_stream_idx;
2628             } else {
2629                 m->sync_file_index   = file_idx;
2630                 m->sync_stream_index = i;
2631             }
2632         }
2633
2634     if (!m) {
2635         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2636         exit_program(1);
2637     }
2638
2639     av_freep(&map);
2640     return 0;
2641 }
2642
2643 static void parse_meta_type(char *arg, char *type, int *index)
2644 {
2645     if (*arg) {
2646         *type = *arg;
2647         switch (*arg) {
2648         case 'g':
2649             break;
2650         case 's':
2651         case 'c':
2652         case 'p':
2653             if (*(++arg) == ':')
2654                 *index = strtol(++arg, NULL, 0);
2655             break;
2656         default:
2657             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2658             exit_program(1);
2659         }
2660     } else
2661         *type = 'g';
2662 }
2663
2664 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2665 {
2666     MetadataMap *m, *m1;
2667     char *p;
2668
2669     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2670                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2671
2672     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2673     m->file = strtol(arg, &p, 0);
2674     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2675
2676     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2677     if (p = strchr(opt, ':'))
2678         parse_meta_type(p + 1, &m1->type, &m1->index);
2679     else
2680         m1->type = 'g';
2681
2682     if (m->type == 'g' || m1->type == 'g')
2683         o->metadata_global_manual = 1;
2684     if (m->type == 's' || m1->type == 's')
2685         o->metadata_streams_manual = 1;
2686     if (m->type == 'c' || m1->type == 'c')
2687         o->metadata_chapters_manual = 1;
2688
2689     return 0;
2690 }
2691
2692 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2693 {
2694     const char *codec_string = encoder ? "encoder" : "decoder";
2695     AVCodec *codec;
2696
2697     if(!name)
2698         return CODEC_ID_NONE;
2699     codec = encoder ?
2700         avcodec_find_encoder_by_name(name) :
2701         avcodec_find_decoder_by_name(name);
2702     if(!codec) {
2703         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2704         exit_program(1);
2705     }
2706     if(codec->type != type) {
2707         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2708         exit_program(1);
2709     }
2710     return codec->id;
2711 }
2712
2713 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
2714 {
2715     char *codec_name = NULL;
2716
2717     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
2718
2719     if (!codec_name) {
2720         if (s->oformat) {
2721             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2722             return avcodec_find_encoder(st->codec->codec_id);
2723         }
2724     } else if (!strcmp(codec_name, "copy"))
2725         st->stream_copy = 1;
2726     else {
2727         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2728         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2729                             avcodec_find_decoder_by_name(codec_name);
2730     }
2731
2732     return NULL;
2733 }
2734
2735 /**
2736  * Add all the streams from the given input file to the global
2737  * list of input streams.
2738  */
2739 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
2740 {
2741     int i, rfps, rfps_base;
2742
2743     for (i = 0; i < ic->nb_streams; i++) {
2744         AVStream *st = ic->streams[i];
2745         AVCodecContext *dec = st->codec;
2746         InputStream *ist;
2747         double scale = 1.0;
2748
2749         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2750         ist = &input_streams[nb_input_streams - 1];
2751         ist->st = st;
2752         ist->file_index = nb_input_files;
2753         ist->discard = 1;
2754         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2755
2756         MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
2757         ist->ts_scale = scale;
2758
2759         ist->dec = choose_codec(o, ic, st, dec->codec_type);
2760         if (!ist->dec)
2761             ist->dec = avcodec_find_decoder(dec->codec_id);
2762
2763         switch (dec->codec_type) {
2764         case AVMEDIA_TYPE_AUDIO:
2765             if (o->audio_disable)
2766                 st->discard= AVDISCARD_ALL;
2767             break;
2768         case AVMEDIA_TYPE_VIDEO:
2769             rfps      = ic->streams[i]->r_frame_rate.num;
2770             rfps_base = ic->streams[i]->r_frame_rate.den;
2771             if (dec->lowres) {
2772                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2773                 dec->height >>= dec->lowres;
2774                 dec->width  >>= dec->lowres;
2775             }
2776
2777             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2778
2779                 if (verbose >= 0)
2780                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2781                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2782
2783                     (float)rfps / rfps_base, rfps, rfps_base);
2784             }
2785
2786             if (o->video_disable)
2787                 st->discard= AVDISCARD_ALL;
2788             else if(video_discard)
2789                 st->discard= video_discard;
2790             break;
2791         case AVMEDIA_TYPE_DATA:
2792             break;
2793         case AVMEDIA_TYPE_SUBTITLE:
2794             if (o->subtitle_disable)
2795                 st->discard = AVDISCARD_ALL;
2796             break;
2797         case AVMEDIA_TYPE_ATTACHMENT:
2798         case AVMEDIA_TYPE_UNKNOWN:
2799             break;
2800         default:
2801             abort();
2802         }
2803     }
2804 }
2805
2806 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2807 {
2808     AVFormatContext *ic;
2809     AVInputFormat *file_iformat = NULL;
2810     int err, i, ret;
2811     int64_t timestamp;
2812     uint8_t buf[128];
2813     AVDictionary **opts;
2814     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2815
2816     if (o->format) {
2817         if (!(file_iformat = av_find_input_format(o->format))) {
2818             fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2819             exit_program(1);
2820         }
2821     }
2822
2823     if (!strcmp(filename, "-"))
2824         filename = "pipe:";
2825
2826     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2827                     !strcmp(filename, "/dev/stdin");
2828
2829     /* get default parameters from command line */
2830     ic = avformat_alloc_context();
2831     if (!ic) {
2832         print_error(filename, AVERROR(ENOMEM));
2833         exit_program(1);
2834     }
2835     if (o->nb_audio_sample_rate) {
2836         snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
2837         av_dict_set(&format_opts, "sample_rate", buf, 0);
2838     }
2839     if (o->nb_audio_channels) {
2840         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
2841         av_dict_set(&format_opts, "channels", buf, 0);
2842     }
2843     if (o->nb_frame_rates) {
2844         av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
2845     }
2846     if (o->nb_frame_sizes) {
2847         av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
2848     }
2849     if (o->nb_frame_pix_fmts)
2850         av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
2851
2852     ic->flags |= AVFMT_FLAG_NONBLOCK;
2853
2854     /* open the input file with generic libav function */
2855     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2856     if (err < 0) {
2857         print_error(filename, err);
2858         exit_program(1);
2859     }
2860     assert_avoptions(format_opts);
2861
2862     /* apply forced codec ids */
2863     for (i = 0; i < ic->nb_streams; i++)
2864         choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
2865
2866     /* Set AVCodecContext options for avformat_find_stream_info */
2867     opts = setup_find_stream_info_opts(ic, codec_opts);
2868     orig_nb_streams = ic->nb_streams;
2869
2870     /* If not enough info to get the stream parameters, we decode the
2871        first frames to get it. (used in mpeg case for example) */
2872     ret = avformat_find_stream_info(ic, opts);
2873     if (ret < 0 && verbose >= 0) {
2874         fprintf(stderr, "%s: could not find codec parameters\n", filename);
2875         av_close_input_file(ic);
2876         exit_program(1);
2877     }
2878
2879     timestamp = o->start_time;
2880     /* add the stream start time */
2881     if (ic->start_time != AV_NOPTS_VALUE)
2882         timestamp += ic->start_time;
2883
2884     /* if seeking requested, we execute it */
2885     if (o->start_time != 0) {
2886         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2887         if (ret < 0) {
2888             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2889                     filename, (double)timestamp / AV_TIME_BASE);
2890         }
2891     }
2892
2893     /* update the current parameters so that they match the one of the input stream */
2894     add_input_streams(o, ic);
2895
2896     /* dump the file content */
2897     if (verbose >= 0)
2898         av_dump_format(ic, nb_input_files, filename, 0);
2899
2900     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
2901     input_files[nb_input_files - 1].ctx        = ic;
2902     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
2903     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
2904     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
2905
2906     for (i = 0; i < orig_nb_streams; i++)
2907         av_dict_free(&opts[i]);
2908     av_freep(&opts);
2909
2910     reset_options(o);
2911     return 0;
2912 }
2913
2914 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2915                                     AVCodecContext *avctx)
2916 {
2917     char *p;
2918     int n = 1, i;
2919     int64_t t;
2920
2921     for (p = kf; *p; p++)
2922         if (*p == ',')
2923             n++;
2924     ost->forced_kf_count = n;
2925     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2926     if (!ost->forced_kf_pts) {
2927         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2928         exit_program(1);
2929     }
2930     for (i = 0; i < n; i++) {
2931         p = i ? strchr(p, ',') + 1 : kf;
2932         t = parse_time_or_die("force_key_frames", p, 1);
2933         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2934     }
2935 }
2936
2937 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
2938 {
2939     OutputStream *ost;
2940     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
2941     int idx      = oc->nb_streams - 1;
2942     int64_t max_frames = INT64_MAX;
2943     char *bsf = NULL, *next, *codec_tag = NULL;
2944     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
2945     double qscale = -1;
2946
2947     if (!st) {
2948         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
2949         exit_program(1);
2950     }
2951
2952     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
2953                                 nb_output_streams + 1);
2954     ost = &output_streams[nb_output_streams - 1];
2955     ost->file_index = nb_output_files;
2956     ost->index = idx;
2957     ost->st    = st;
2958     st->codec->codec_type = type;
2959     ost->enc = choose_codec(o, oc, st, type);
2960     if (ost->enc) {
2961         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
2962     }
2963
2964     avcodec_get_context_defaults3(st->codec, ost->enc);
2965     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
2966
2967     MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
2968     ost->max_frames = max_frames;
2969
2970     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
2971     while (bsf) {
2972         if (next = strchr(bsf, ','))
2973             *next++ = 0;
2974         if (!(bsfc = av_bitstream_filter_init(bsf))) {
2975             av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
2976             exit_program(1);
2977         }
2978         if (bsfc_prev)
2979             bsfc_prev->next = bsfc;
2980         else
2981             ost->bitstream_filters = bsfc;
2982
2983         bsfc_prev = bsfc;
2984         bsf       = next;
2985     }
2986
2987     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
2988     if (codec_tag) {
2989         uint32_t tag = strtol(codec_tag, &next, 0);
2990         if (*next)
2991             tag = AV_RL32(codec_tag);
2992         st->codec->codec_tag = tag;
2993     }
2994
2995     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
2996     if (qscale >= 0 || same_quant) {
2997         st->codec->flags |= CODEC_FLAG_QSCALE;
2998         st->codec->global_quality = FF_QP2LAMBDA * qscale;
2999     }
3000
3001     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3002     return ost;
3003 }
3004
3005 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3006 {
3007     int i;
3008     const char *p = str;
3009     for(i = 0;; i++) {
3010         dest[i] = atoi(p);
3011         if(i == 63)
3012             break;
3013         p = strchr(p, ',');
3014         if(!p) {
3015             fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3016             exit_program(1);
3017         }
3018         p++;
3019     }
3020 }
3021
3022 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3023 {
3024     AVStream *st;
3025     OutputStream *ost;
3026     AVCodecContext *video_enc;
3027
3028     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3029     st  = ost->st;
3030     if (!st->stream_copy) {
3031 #if CONFIG_AVFILTER
3032         ost->avfilter= vfilters;
3033         vfilters = NULL;
3034 #endif
3035     }
3036
3037     video_enc = st->codec;
3038
3039     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3040         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3041     }
3042
3043     if (!st->stream_copy) {
3044         const char *p = NULL;
3045         char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3046         char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3047         char *intra_matrix = NULL, *inter_matrix = NULL;
3048         int i, force_fps = 0;
3049
3050         MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3051         if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3052             av_log(NULL, AV_LOG_ERROR, "Invalid framerate value: %s\n", frame_rate);
3053             exit_program(1);
3054         }
3055
3056         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3057         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3058             av_log(NULL, AV_LOG_ERROR, "Invalid frame size: %s.\n", frame_size);
3059             exit_program(1);
3060         }
3061
3062         MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3063         if (frame_aspect_ratio)
3064             ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3065
3066         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3067         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3068             av_log(NULL, AV_LOG_ERROR, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3069             exit_program(1);
3070         }
3071         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3072
3073         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3074         if (intra_matrix) {
3075             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3076                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for intra matrix.\n");
3077                 exit_program(1);
3078             }
3079             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3080         }
3081         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3082         if (inter_matrix) {
3083             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3084                 av_log(NULL, AV_LOG_ERROR, "Could not allocate memory for inter matrix.\n");
3085                 exit_program(1);
3086             }
3087             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3088         }
3089
3090         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3091         for(i=0; p; i++){
3092             int start, end, q;
3093             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3094             if(e!=3){
3095                 fprintf(stderr, "error parsing rc_override\n");
3096                 exit_program(1);
3097             }
3098             video_enc->rc_override=
3099                 av_realloc(video_enc->rc_override,
3100                            sizeof(RcOverride)*(i+1));
3101             video_enc->rc_override[i].start_frame= start;
3102             video_enc->rc_override[i].end_frame  = end;
3103             if(q>0){
3104                 video_enc->rc_override[i].qscale= q;
3105                 video_enc->rc_override[i].quality_factor= 1.0;
3106             }
3107             else{
3108                 video_enc->rc_override[i].qscale= 0;
3109                 video_enc->rc_override[i].quality_factor= -q/100.0;
3110             }
3111             p= strchr(p, '/');
3112             if(p) p++;
3113         }
3114         video_enc->rc_override_count=i;
3115         if (!video_enc->rc_initial_buffer_occupancy)
3116             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3117         video_enc->intra_dc_precision= intra_dc_precision - 8;
3118
3119         /* two pass mode */
3120         if (do_pass) {
3121             if (do_pass == 1) {
3122                 video_enc->flags |= CODEC_FLAG_PASS1;
3123             } else {
3124                 video_enc->flags |= CODEC_FLAG_PASS2;
3125             }
3126         }
3127
3128         MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3129         if (forced_key_frames)
3130             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3131
3132         MATCH_PER_STREAM_OPT(force_fps, i, force_fps, oc, st);
3133         ost->force_fps = force_fps;
3134     }
3135
3136     return ost;
3137 }
3138
3139 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3140 {
3141     AVStream *st;
3142     OutputStream *ost;
3143     AVCodecContext *audio_enc;
3144
3145     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3146     st  = ost->st;
3147
3148     audio_enc = st->codec;
3149     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3150
3151     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3152         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3153     }
3154     if (!st->stream_copy) {
3155         char *sample_fmt = NULL;
3156
3157         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3158
3159         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3160         if (sample_fmt &&
3161             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3162             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", sample_fmt);
3163             exit_program(1);
3164         }
3165
3166         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3167     }
3168
3169     return ost;
3170 }
3171
3172 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3173 {
3174     AVStream *st;
3175     OutputStream *ost;
3176     AVCodecContext *data_enc;
3177
3178     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3179     st  = ost->st;
3180     data_enc = st->codec;
3181     if (!st->stream_copy) {
3182         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3183         exit_program(1);
3184     }
3185
3186     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3187         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3188     }
3189
3190     return ost;
3191 }
3192
3193 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3194 {
3195     AVStream *st;
3196     OutputStream *ost;
3197     AVCodecContext *subtitle_enc;
3198
3199     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3200     st  = ost->st;
3201     subtitle_enc = st->codec;
3202
3203     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3204
3205     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3206         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3207     }
3208
3209     return ost;
3210 }
3211
3212 /* arg format is "output-stream-index:streamid-value". */
3213 static int opt_streamid(const char *opt, const char *arg)
3214 {
3215     int idx;
3216     char *p;
3217     char idx_str[16];
3218
3219     av_strlcpy(idx_str, arg, sizeof(idx_str));
3220     p = strchr(idx_str, ':');
3221     if (!p) {
3222         fprintf(stderr,
3223                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3224                 arg, opt);
3225         exit_program(1);
3226     }
3227     *p++ = '\0';
3228     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3229     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3230     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3231     return 0;
3232 }
3233
3234 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3235 {
3236     AVFormatContext *is = ifile->ctx;
3237     AVFormatContext *os = ofile->ctx;
3238     int i;
3239
3240     for (i = 0; i < is->nb_chapters; i++) {
3241         AVChapter *in_ch = is->chapters[i], *out_ch;
3242         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
3243                                       AV_TIME_BASE_Q, in_ch->time_base);
3244         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3245                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3246
3247
3248         if (in_ch->end < ts_off)
3249             continue;
3250         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3251             break;
3252
3253         out_ch = av_mallocz(sizeof(AVChapter));
3254         if (!out_ch)
3255             return AVERROR(ENOMEM);
3256
3257         out_ch->id        = in_ch->id;
3258         out_ch->time_base = in_ch->time_base;
3259         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3260         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3261
3262         if (copy_metadata)
3263             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3264
3265         os->nb_chapters++;
3266         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3267         if (!os->chapters)
3268             return AVERROR(ENOMEM);
3269         os->chapters[os->nb_chapters - 1] = out_ch;
3270     }
3271     return 0;
3272 }
3273
3274 static int read_avserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3275 {
3276     int i, err;
3277     AVFormatContext *ic = NULL;
3278
3279     err = avformat_open_input(&ic, filename, NULL, NULL);
3280     if (err < 0)
3281         return err;
3282     /* copy stream format */
3283     for(i=0;i<ic->nb_streams;i++) {
3284         AVStream *st;
3285         OutputStream *ost;
3286         AVCodec *codec;
3287
3288         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3289         ost   = new_output_stream(o, s, codec->type);
3290         st    = ost->st;
3291
3292         // FIXME: a more elegant solution is needed
3293         memcpy(st, ic->streams[i], sizeof(AVStream));
3294         st->info = NULL;
3295         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3296
3297         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3298             choose_sample_fmt(st, codec);
3299         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3300             choose_pixel_fmt(st, codec);
3301     }
3302
3303     av_close_input_file(ic);
3304     return 0;
3305 }
3306
3307 static void opt_output_file(void *optctx, const char *filename)
3308 {
3309     OptionsContext *o = optctx;
3310     AVFormatContext *oc;
3311     int i, err;
3312     AVOutputFormat *file_oformat;
3313     OutputStream *ost;
3314     InputStream  *ist;
3315
3316     if (!strcmp(filename, "-"))
3317         filename = "pipe:";
3318
3319     oc = avformat_alloc_context();
3320     if (!oc) {
3321         print_error(filename, AVERROR(ENOMEM));
3322         exit_program(1);
3323     }
3324
3325     if (o->format) {
3326         file_oformat = av_guess_format(o->format, NULL, NULL);
3327         if (!file_oformat) {
3328             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", o->format);
3329             exit_program(1);
3330         }
3331     } else {
3332         file_oformat = av_guess_format(NULL, filename, NULL);
3333         if (!file_oformat) {
3334             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3335                     filename);
3336             exit_program(1);
3337         }
3338     }
3339
3340     oc->oformat = file_oformat;
3341     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3342
3343     if (!strcmp(file_oformat->name, "ffm") &&
3344         av_strstart(filename, "http:", NULL)) {
3345         /* special case for files sent to avserver: we get the stream
3346            parameters from avserver */
3347         int err = read_avserver_streams(o, oc, filename);
3348         if (err < 0) {
3349             print_error(filename, err);
3350             exit_program(1);
3351         }
3352     } else if (!o->nb_stream_maps) {
3353         /* pick the "best" stream of each type */
3354 #define NEW_STREAM(type, index)\
3355         if (index >= 0) {\
3356             ost = new_ ## type ## _stream(o, oc);\
3357             ost->source_index = index;\
3358             ost->sync_ist     = &input_streams[index];\
3359             input_streams[index].discard = 0;\
3360         }
3361
3362         /* video: highest resolution */
3363         if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3364             int area = 0, idx = -1;
3365             for (i = 0; i < nb_input_streams; i++) {
3366                 ist = &input_streams[i];
3367                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3368                     ist->st->codec->width * ist->st->codec->height > area) {
3369                     area = ist->st->codec->width * ist->st->codec->height;
3370                     idx = i;
3371                 }
3372             }
3373             NEW_STREAM(video, idx);
3374         }
3375
3376         /* audio: most channels */
3377         if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3378             int channels = 0, idx = -1;
3379             for (i = 0; i < nb_input_streams; i++) {
3380                 ist = &input_streams[i];
3381                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3382                     ist->st->codec->channels > channels) {
3383                     channels = ist->st->codec->channels;
3384                     idx = i;
3385                 }
3386             }
3387             NEW_STREAM(audio, idx);
3388         }
3389
3390         /* subtitles: pick first */
3391         if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3392             for (i = 0; i < nb_input_streams; i++)
3393                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3394                     NEW_STREAM(subtitle, i);
3395                     break;
3396                 }
3397         }
3398         /* do something with data? */
3399     } else {
3400         for (i = 0; i < o->nb_stream_maps; i++) {
3401             StreamMap *map = &o->stream_maps[i];
3402
3403             if (map->disabled)
3404                 continue;
3405
3406             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3407             switch (ist->st->codec->codec_type) {
3408             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
3409             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(o, oc);    break;
3410             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
3411             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(o, oc);     break;
3412             default:
3413                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3414                        map->file_index, map->stream_index);
3415                 exit_program(1);
3416             }
3417
3418             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3419             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3420                                            map->sync_stream_index];
3421             ist->discard = 0;
3422         }
3423     }
3424
3425     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3426     output_files[nb_output_files - 1].ctx       = oc;
3427     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3428     output_files[nb_output_files - 1].recording_time = o->recording_time;
3429     output_files[nb_output_files - 1].start_time     = o->start_time;
3430     output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3431     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3432
3433     /* check filename in case of an image number is expected */
3434     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3435         if (!av_filename_number_test(oc->filename)) {
3436             print_error(oc->filename, AVERROR(EINVAL));
3437             exit_program(1);
3438         }
3439     }
3440
3441     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3442         /* test if it already exists to avoid loosing precious files */
3443         if (!file_overwrite &&
3444             (strchr(filename, ':') == NULL ||
3445              filename[1] == ':' ||
3446              av_strstart(filename, "file:", NULL))) {
3447             if (avio_check(filename, 0) == 0) {
3448                 if (!using_stdin) {
3449                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3450                     fflush(stderr);
3451                     if (!read_yesno()) {
3452                         fprintf(stderr, "Not overwriting - exiting\n");
3453                         exit_program(1);
3454                     }
3455                 }
3456                 else {
3457                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3458                     exit_program(1);
3459                 }
3460             }
3461         }
3462
3463         /* open the file */
3464         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3465             print_error(filename, err);
3466             exit_program(1);
3467         }
3468     }
3469
3470     oc->preload   = (int)(o->mux_preload   * AV_TIME_BASE);
3471     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
3472     oc->flags |= AVFMT_FLAG_NONBLOCK;
3473
3474     /* copy chapters */
3475     if (o->chapters_input_file >= nb_input_files) {
3476         if (o->chapters_input_file == INT_MAX) {
3477             /* copy chapters from the first input file that has them*/
3478             o->chapters_input_file = -1;
3479             for (i = 0; i < nb_input_files; i++)
3480                 if (input_files[i].ctx->nb_chapters) {
3481                     o->chapters_input_file = i;
3482                     break;
3483                 }
3484         } else {
3485             av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3486                    o->chapters_input_file);
3487             exit_program(1);
3488         }
3489     }
3490     if (o->chapters_input_file >= 0)
3491         copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
3492                       o->metadata_chapters_manual);
3493
3494     /* copy metadata */
3495     for (i = 0; i < o->nb_meta_data_maps; i++) {
3496         AVFormatContext *files[2];
3497         AVDictionary    **meta[2];
3498         int j;
3499
3500 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3501         if ((index) < 0 || (index) >= (nb_elems)) {\
3502             av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3503                      (desc), (index));\
3504             exit_program(1);\
3505         }
3506
3507         int in_file_index = o->meta_data_maps[i][1].file;
3508         if (in_file_index < 0)
3509             continue;
3510         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3511
3512         files[0] = oc;
3513         files[1] = input_files[in_file_index].ctx;
3514
3515         for (j = 0; j < 2; j++) {
3516             MetadataMap *map = &o->meta_data_maps[i][j];
3517
3518             switch (map->type) {
3519             case 'g':
3520                 meta[j] = &files[j]->metadata;
3521                 break;
3522             case 's':
3523                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3524                 meta[j] = &files[j]->streams[map->index]->metadata;
3525                 break;
3526             case 'c':
3527                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3528                 meta[j] = &files[j]->chapters[map->index]->metadata;
3529                 break;
3530             case 'p':
3531                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3532                 meta[j] = &files[j]->programs[map->index]->metadata;
3533                 break;
3534             }
3535         }
3536
3537         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3538     }
3539
3540     /* copy global metadata by default */
3541     if (!o->metadata_global_manual && nb_input_files)
3542         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3543                      AV_DICT_DONT_OVERWRITE);
3544     if (!o->metadata_streams_manual)
3545         for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
3546             InputStream *ist = &input_streams[output_streams[i].source_index];
3547             av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
3548         }
3549
3550     /* process manually set metadata */
3551     for (i = 0; i < o->nb_metadata; i++) {
3552         AVDictionary **m;
3553         char type, *val;
3554         int index = 0;
3555
3556         val = strchr(o->metadata[i].u.str, '=');
3557         if (!val) {
3558             av_log(NULL, AV_LOG_ERROR, "No '=' character in metadata string %s.\n",
3559                    o->metadata[i].u.str);
3560             exit_program(1);
3561         }
3562         *val++ = 0;
3563
3564         parse_meta_type(o->metadata[i].specifier, &type, &index);
3565         switch (type) {
3566         case 'g':
3567             m = &oc->metadata;
3568             break;
3569         case 's':
3570             if (index < 0 || index >= oc->nb_streams) {
3571                 av_log(NULL, AV_LOG_ERROR, "Invalid stream index %d in metadata specifier.\n", index);
3572                 exit_program(1);
3573             }
3574             m = &oc->streams[i]->metadata;
3575             break;
3576         case 'c':
3577             if (index < 0 || index >= oc->nb_chapters) {
3578                 av_log(NULL, AV_LOG_ERROR, "Invalid chapter index %d in metadata specifier.\n", index);
3579                 exit_program(1);
3580             }
3581             m = &oc->chapters[i]->metadata;
3582             break;
3583         default:
3584             av_log(NULL, AV_LOG_ERROR, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
3585             exit_program(1);
3586         }
3587
3588         av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
3589     }
3590
3591     av_freep(&streamid_map);
3592     nb_streamid_map = 0;
3593
3594     reset_options(o);
3595 }
3596
3597 /* same option as mencoder */
3598 static int opt_pass(const char *opt, const char *arg)
3599 {
3600     do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
3601     return 0;
3602 }
3603
3604 static int64_t getutime(void)
3605 {
3606 #if HAVE_GETRUSAGE
3607     struct rusage rusage;
3608
3609     getrusage(RUSAGE_SELF, &rusage);
3610     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3611 #elif HAVE_GETPROCESSTIMES
3612     HANDLE proc;
3613     FILETIME c, e, k, u;
3614     proc = GetCurrentProcess();
3615     GetProcessTimes(proc, &c, &e, &k, &u);
3616     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3617 #else
3618     return av_gettime();
3619 #endif
3620 }
3621
3622 static int64_t getmaxrss(void)
3623 {
3624 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3625     struct rusage rusage;
3626     getrusage(RUSAGE_SELF, &rusage);
3627     return (int64_t)rusage.ru_maxrss * 1024;
3628 #elif HAVE_GETPROCESSMEMORYINFO
3629     HANDLE proc;
3630     PROCESS_MEMORY_COUNTERS memcounters;
3631     proc = GetCurrentProcess();
3632     memcounters.cb = sizeof(memcounters);
3633     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3634     return memcounters.PeakPagefileUsage;
3635 #else
3636     return 0;
3637 #endif
3638 }
3639
3640 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
3641 {
3642     return parse_option(o, "q:a", arg, options);
3643 }
3644
3645 static void show_usage(void)
3646 {
3647     printf("Hyper fast Audio and Video encoder\n");
3648     printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
3649     printf("\n");
3650 }
3651
3652 static void show_help(void)
3653 {
3654     AVCodec *c;
3655     AVOutputFormat *oformat = NULL;