mpegts: log into an AVFormatContext rather than MpegTSContext.
[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 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static double *ts_scale;
104 static int  nb_ts_scale;
105
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVDictionary *output_opts[MAX_FILES];
108 static int nb_output_files = 0;
109
110 static StreamMap *stream_maps = NULL;
111 static int nb_stream_maps;
112
113 static AVDictionary *codec_names;
114
115 /* first item specifies output metadata, second is input */
116 static MetadataMap (*meta_data_maps)[2] = NULL;
117 static int nb_meta_data_maps;
118 static int metadata_global_autocopy   = 1;
119 static int metadata_streams_autocopy  = 1;
120 static int metadata_chapters_autocopy = 1;
121
122 static int chapters_input_file = INT_MAX;
123
124 /* indexed by output file stream index */
125 static int *streamid_map = NULL;
126 static int nb_streamid_map = 0;
127
128 static int frame_width  = 0;
129 static int frame_height = 0;
130 static float frame_aspect_ratio = 0;
131 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
132 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static unsigned int video_codec_tag = 0;
142 static char *video_language = NULL;
143 static int same_quant = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int qp_hist = 0;
149 #if CONFIG_AVFILTER
150 static char *vfilters = NULL;
151 #endif
152
153 static int intra_only = 0;
154 static int audio_sample_rate = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 0;
159 static unsigned int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_language = NULL;
164 static unsigned int subtitle_codec_tag = 0;
165
166 static int data_disable = 0;
167 static unsigned int data_codec_tag = 0;
168
169 static float mux_preload= 0.5;
170 static float mux_max_delay= 0.7;
171
172 static int64_t recording_time = INT64_MAX;
173 static int64_t start_time = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static AVDictionary *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int video_sync_method= -1;
184 static int audio_sync_method= 0;
185 static float audio_drift_threshold= 0.1;
186 static int copy_ts= 0;
187 static int copy_tb;
188 static int opt_shortest = 0;
189 static char *vstats_filename;
190 static FILE *vstats_file;
191 static int opt_programid = 0;
192 static int copy_initial_nonkeyframes = 0;
193
194 static int rate_emu = 0;
195
196 static int audio_volume = 256;
197
198 static int exit_on_error = 0;
199 static int using_stdin = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int64_t video_size = 0;
203 static int64_t audio_size = 0;
204 static int64_t extra_size = 0;
205 static int nb_frames_dup = 0;
206 static int nb_frames_drop = 0;
207 static int input_sync;
208 static uint64_t limit_filesize = 0;
209 static int force_fps = 0;
210 static char *forced_key_frames = NULL;
211
212 static float dts_delta_threshold = 10;
213
214 static int64_t timer_start;
215
216 static uint8_t *audio_buf;
217 static uint8_t *audio_out;
218 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
219
220 static short *samples;
221
222 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
225
226 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
227
228 struct InputStream;
229
230 typedef struct OutputStream {
231     int file_index;          /* file index */
232     int index;               /* stream index in the output file */
233     int source_index;        /* InputStream index */
234     AVStream *st;            /* stream in the output file */
235     int encoding_needed;     /* true if encoding needed for this stream */
236     int frame_number;
237     /* input pts and corresponding output pts
238        for A/V sync */
239     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
240     struct InputStream *sync_ist; /* input stream to sync against */
241     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
242     AVBitStreamFilterContext *bitstream_filters;
243     AVCodec *enc;
244
245     /* video only */
246     int video_resample;
247     AVFrame pict_tmp;      /* temporary image for resampling */
248     struct SwsContext *img_resample_ctx; /* for image resampling */
249     int resample_height;
250     int resample_width;
251     int resample_pix_fmt;
252     AVRational frame_rate;
253
254     float frame_aspect_ratio;
255
256     /* forced key frames */
257     int64_t *forced_kf_pts;
258     int forced_kf_count;
259     int forced_kf_index;
260
261     /* audio only */
262     int audio_resample;
263     ReSampleContext *resample; /* for audio resampling */
264     int resample_sample_fmt;
265     int resample_channels;
266     int resample_sample_rate;
267     int reformat_pair;
268     AVAudioConvert *reformat_ctx;
269     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
270     FILE *logfile;
271
272 #if CONFIG_AVFILTER
273     AVFilterContext *output_video_filter;
274     AVFilterContext *input_video_filter;
275     AVFilterBufferRef *picref;
276     char *avfilter;
277     AVFilterGraph *graph;
278 #endif
279
280    int sws_flags;
281    AVDictionary *opts;
282 } OutputStream;
283
284 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
285 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
286
287 typedef struct InputStream {
288     int file_index;
289     AVStream *st;
290     int discard;             /* true if stream data should be discarded */
291     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
292     AVCodec *dec;
293
294     int64_t       start;     /* time when read started */
295     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
296                                 is not defined */
297     int64_t       pts;       /* current pts */
298     PtsCorrectionContext pts_ctx;
299     double ts_scale;
300     int is_start;            /* is 1 at the start and after a discontinuity */
301     int showed_multi_packet_warning;
302     int is_past_recording_time;
303     AVDictionary *opts;
304 } InputStream;
305
306 typedef struct InputFile {
307     AVFormatContext *ctx;
308     int eof_reached;      /* true if eof reached */
309     int ist_index;        /* index of first stream in ist_table */
310     int buffer_size;      /* current total buffer size */
311     int64_t ts_offset;
312 } InputFile;
313
314 static InputStream *input_streams = NULL;
315 static int         nb_input_streams = 0;
316 static InputFile   *input_files   = NULL;
317 static int         nb_input_files   = 0;
318
319 #if CONFIG_AVFILTER
320
321 static int configure_video_filters(InputStream *ist, OutputStream *ost)
322 {
323     AVFilterContext *last_filter, *filter;
324     /** filter graph containing all filters including input & output */
325     AVCodecContext *codec = ost->st->codec;
326     AVCodecContext *icodec = ist->st->codec;
327     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
328     AVRational sample_aspect_ratio;
329     char args[255];
330     int ret;
331
332     ost->graph = avfilter_graph_alloc();
333
334     if (ist->st->sample_aspect_ratio.num){
335         sample_aspect_ratio = ist->st->sample_aspect_ratio;
336     }else
337         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
338
339     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
340              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
341              sample_aspect_ratio.num, sample_aspect_ratio.den);
342
343     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
344                                        "src", args, NULL, ost->graph);
345     if (ret < 0)
346         return ret;
347     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
348                                        "out", NULL, &ffsink_ctx, ost->graph);
349     if (ret < 0)
350         return ret;
351     last_filter = ost->input_video_filter;
352
353     if (codec->width  != icodec->width || codec->height != icodec->height) {
354         snprintf(args, 255, "%d:%d:flags=0x%X",
355                  codec->width,
356                  codec->height,
357                  ost->sws_flags);
358         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
359                                                 NULL, args, NULL, ost->graph)) < 0)
360             return ret;
361         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
362             return ret;
363         last_filter = filter;
364     }
365
366     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
367     ost->graph->scale_sws_opts = av_strdup(args);
368
369     if (ost->avfilter) {
370         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
371         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
372
373         outputs->name    = av_strdup("in");
374         outputs->filter_ctx = last_filter;
375         outputs->pad_idx = 0;
376         outputs->next    = NULL;
377
378         inputs->name    = av_strdup("out");
379         inputs->filter_ctx = ost->output_video_filter;
380         inputs->pad_idx = 0;
381         inputs->next    = NULL;
382
383         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
384             return ret;
385         av_freep(&ost->avfilter);
386     } else {
387         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
388             return ret;
389     }
390
391     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
392         return ret;
393
394     codec->width  = ost->output_video_filter->inputs[0]->w;
395     codec->height = ost->output_video_filter->inputs[0]->h;
396     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
397         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
398         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
399         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
400
401     return 0;
402 }
403 #endif /* CONFIG_AVFILTER */
404
405 static void term_exit(void)
406 {
407     av_log(NULL, AV_LOG_QUIET, "");
408 }
409
410 static volatile int received_sigterm = 0;
411 static volatile int received_nb_signals = 0;
412
413 static void
414 sigterm_handler(int sig)
415 {
416     received_sigterm = sig;
417     received_nb_signals++;
418     term_exit();
419 }
420
421 static void term_init(void)
422 {
423     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
424     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
425 #ifdef SIGXCPU
426     signal(SIGXCPU, sigterm_handler);
427 #endif
428 }
429
430 static int decode_interrupt_cb(void)
431 {
432     return received_nb_signals > 1;
433 }
434
435 static int exit_program(int ret)
436 {
437     int i;
438
439     /* close files */
440     for(i=0;i<nb_output_files;i++) {
441         AVFormatContext *s = output_files[i];
442         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
443             avio_close(s->pb);
444         avformat_free_context(s);
445         av_free(output_streams_for_file[i]);
446         av_dict_free(&output_opts[i]);
447     }
448     for(i=0;i<nb_input_files;i++) {
449         av_close_input_file(input_files[i].ctx);
450     }
451     for (i = 0; i < nb_input_streams; i++)
452         av_dict_free(&input_streams[i].opts);
453
454     av_free(intra_matrix);
455     av_free(inter_matrix);
456
457     if (vstats_file)
458         fclose(vstats_file);
459     av_free(vstats_filename);
460
461     av_free(streamid_map);
462     av_free(meta_data_maps);
463
464     av_freep(&input_streams);
465     av_freep(&input_files);
466
467     uninit_opts();
468     av_free(audio_buf);
469     av_free(audio_out);
470     allocated_audio_buf_size= allocated_audio_out_size= 0;
471     av_free(samples);
472
473 #if CONFIG_AVFILTER
474     avfilter_uninit();
475 #endif
476
477     if (received_sigterm) {
478         fprintf(stderr,
479             "Received signal %d: terminating.\n",
480             (int) received_sigterm);
481         exit (255);
482     }
483
484     exit(ret); /* not all OS-es handle main() return value */
485     return ret;
486 }
487
488 static void assert_avoptions(AVDictionary *m)
489 {
490     AVDictionaryEntry *t;
491     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
493         exit_program(1);
494     }
495 }
496
497 static void assert_codec_experimental(AVCodecContext *c, int encoder)
498 {
499     const char *codec_string = encoder ? "encoder" : "decoder";
500     AVCodec *codec;
501     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
502         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
503         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
504                 "results.\nAdd '-strict experimental' if you want to use it.\n",
505                 codec_string, c->codec->name);
506         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
507         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
508             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
509                    codec_string, codec->name);
510         exit_program(1);
511     }
512 }
513
514 /* similar to ff_dynarray_add() and av_fast_realloc() */
515 static void *grow_array(void *array, int elem_size, int *size, int new_size)
516 {
517     if (new_size >= INT_MAX / elem_size) {
518         fprintf(stderr, "Array too big.\n");
519         exit_program(1);
520     }
521     if (*size < new_size) {
522         uint8_t *tmp = av_realloc(array, new_size*elem_size);
523         if (!tmp) {
524             fprintf(stderr, "Could not alloc buffer.\n");
525             exit_program(1);
526         }
527         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
528         *size = new_size;
529         return tmp;
530     }
531     return array;
532 }
533
534 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
535 {
536     if(codec && codec->sample_fmts){
537         const enum AVSampleFormat *p= codec->sample_fmts;
538         for(; *p!=-1; p++){
539             if(*p == st->codec->sample_fmt)
540                 break;
541         }
542         if (*p == -1) {
543             av_log(NULL, AV_LOG_WARNING,
544                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
545                    av_get_sample_fmt_name(st->codec->sample_fmt),
546                    codec->name,
547                    av_get_sample_fmt_name(codec->sample_fmts[0]));
548             st->codec->sample_fmt = codec->sample_fmts[0];
549         }
550     }
551 }
552
553 /**
554  * Update the requested input sample format based on the output sample format.
555  * This is currently only used to request float output from decoders which
556  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
557  * Ideally this will be removed in the future when decoders do not do format
558  * conversion and only output in their native format.
559  */
560 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
561                               AVCodecContext *enc)
562 {
563     /* if sample formats match or a decoder sample format has already been
564        requested, just return */
565     if (enc->sample_fmt == dec->sample_fmt ||
566         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
567         return;
568
569     /* if decoder supports more than one output format */
570     if (dec_codec && dec_codec->sample_fmts &&
571         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
572         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
573         const enum AVSampleFormat *p;
574         int min_dec = -1, min_inc = -1;
575
576         /* find a matching sample format in the encoder */
577         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
578             if (*p == enc->sample_fmt) {
579                 dec->request_sample_fmt = *p;
580                 return;
581             } else if (*p > enc->sample_fmt) {
582                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
583             } else
584                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
585         }
586
587         /* if none match, provide the one that matches quality closest */
588         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
589                                   enc->sample_fmt - min_dec;
590     }
591 }
592
593 static void choose_sample_rate(AVStream *st, AVCodec *codec)
594 {
595     if(codec && codec->supported_samplerates){
596         const int *p= codec->supported_samplerates;
597         int best=0;
598         int best_dist=INT_MAX;
599         for(; *p; p++){
600             int dist= abs(st->codec->sample_rate - *p);
601             if(dist < best_dist){
602                 best_dist= dist;
603                 best= *p;
604             }
605         }
606         if(best_dist){
607             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
608         }
609         st->codec->sample_rate= best;
610     }
611 }
612
613 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
614 {
615     if(codec && codec->pix_fmts){
616         const enum PixelFormat *p= codec->pix_fmts;
617         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
618             if(st->codec->codec_id==CODEC_ID_MJPEG){
619                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
620             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
621                 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};
622             }
623         }
624         for(; *p!=-1; p++){
625             if(*p == st->codec->pix_fmt)
626                 break;
627         }
628         if (*p == -1) {
629             if(st->codec->pix_fmt != PIX_FMT_NONE)
630                 av_log(NULL, AV_LOG_WARNING,
631                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
632                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
633                         codec->name,
634                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
635             st->codec->pix_fmt = codec->pix_fmts[0];
636         }
637     }
638 }
639
640 static double
641 get_sync_ipts(const OutputStream *ost)
642 {
643     const InputStream *ist = ost->sync_ist;
644     return (double)(ist->pts - start_time)/AV_TIME_BASE;
645 }
646
647 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
648     int ret;
649
650     while(bsfc){
651         AVPacket new_pkt= *pkt;
652         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
653                                           &new_pkt.data, &new_pkt.size,
654                                           pkt->data, pkt->size,
655                                           pkt->flags & AV_PKT_FLAG_KEY);
656         if(a>0){
657             av_free_packet(pkt);
658             new_pkt.destruct= av_destruct_packet;
659         } else if(a<0){
660             fprintf(stderr, "%s failed for stream %d, codec %s",
661                     bsfc->filter->name, pkt->stream_index,
662                     avctx->codec ? avctx->codec->name : "copy");
663             print_error("", a);
664             if (exit_on_error)
665                 exit_program(1);
666         }
667         *pkt= new_pkt;
668
669         bsfc= bsfc->next;
670     }
671
672     ret= av_interleaved_write_frame(s, pkt);
673     if(ret < 0){
674         print_error("av_interleaved_write_frame()", ret);
675         exit_program(1);
676     }
677 }
678
679 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
680
681 static void do_audio_out(AVFormatContext *s,
682                          OutputStream *ost,
683                          InputStream *ist,
684                          unsigned char *buf, int size)
685 {
686     uint8_t *buftmp;
687     int64_t audio_out_size, audio_buf_size;
688     int64_t allocated_for_size= size;
689
690     int size_out, frame_bytes, ret, resample_changed;
691     AVCodecContext *enc= ost->st->codec;
692     AVCodecContext *dec= ist->st->codec;
693     int osize = av_get_bytes_per_sample(enc->sample_fmt);
694     int isize = av_get_bytes_per_sample(dec->sample_fmt);
695     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
696
697 need_realloc:
698     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
699     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
700     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
701     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
702     audio_buf_size*= osize*enc->channels;
703
704     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
705     if(coded_bps > 8*osize)
706         audio_out_size= audio_out_size * coded_bps / (8*osize);
707     audio_out_size += FF_MIN_BUFFER_SIZE;
708
709     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
710         fprintf(stderr, "Buffer sizes too large\n");
711         exit_program(1);
712     }
713
714     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
715     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
716     if (!audio_buf || !audio_out){
717         fprintf(stderr, "Out of memory in do_audio_out\n");
718         exit_program(1);
719     }
720
721     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
722         ost->audio_resample = 1;
723
724     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
725                        ost->resample_channels    != dec->channels   ||
726                        ost->resample_sample_rate != dec->sample_rate;
727
728     if ((ost->audio_resample && !ost->resample) || resample_changed) {
729         if (resample_changed) {
730             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",
731                    ist->file_index, ist->st->index,
732                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
733                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
734             ost->resample_sample_fmt  = dec->sample_fmt;
735             ost->resample_channels    = dec->channels;
736             ost->resample_sample_rate = dec->sample_rate;
737             if (ost->resample)
738                 audio_resample_close(ost->resample);
739         }
740         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
741         if (audio_sync_method <= 1 &&
742             ost->resample_sample_fmt  == enc->sample_fmt &&
743             ost->resample_channels    == enc->channels   &&
744             ost->resample_sample_rate == enc->sample_rate) {
745             ost->resample = NULL;
746             ost->audio_resample = 0;
747         } else if (ost->audio_resample) {
748             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
749                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
750             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
751                                                    enc->sample_rate, dec->sample_rate,
752                                                    enc->sample_fmt,  dec->sample_fmt,
753                                                    16, 10, 0, 0.8);
754             if (!ost->resample) {
755                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
756                         dec->channels, dec->sample_rate,
757                         enc->channels, enc->sample_rate);
758                 exit_program(1);
759             }
760         }
761     }
762
763 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
764     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
765         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
766         if (ost->reformat_ctx)
767             av_audio_convert_free(ost->reformat_ctx);
768         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
769                                                    dec->sample_fmt, 1, NULL, 0);
770         if (!ost->reformat_ctx) {
771             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
772                 av_get_sample_fmt_name(dec->sample_fmt),
773                 av_get_sample_fmt_name(enc->sample_fmt));
774             exit_program(1);
775         }
776         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
777     }
778
779     if(audio_sync_method){
780         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
781                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
782         double idelta= delta*dec->sample_rate / enc->sample_rate;
783         int byte_delta= ((int)idelta)*2*dec->channels;
784
785         //FIXME resample delay
786         if(fabs(delta) > 50){
787             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
788                 if(byte_delta < 0){
789                     byte_delta= FFMAX(byte_delta, -size);
790                     size += byte_delta;
791                     buf  -= byte_delta;
792                     if(verbose > 2)
793                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
794                     if(!size)
795                         return;
796                     ist->is_start=0;
797                 }else{
798                     static uint8_t *input_tmp= NULL;
799                     input_tmp= av_realloc(input_tmp, byte_delta + size);
800
801                     if(byte_delta > allocated_for_size - size){
802                         allocated_for_size= byte_delta + (int64_t)size;
803                         goto need_realloc;
804                     }
805                     ist->is_start=0;
806
807                     memset(input_tmp, 0, byte_delta);
808                     memcpy(input_tmp + byte_delta, buf, size);
809                     buf= input_tmp;
810                     size += byte_delta;
811                     if(verbose > 2)
812                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
813                 }
814             }else if(audio_sync_method>1){
815                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
816                 av_assert0(ost->audio_resample);
817                 if(verbose > 2)
818                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
819 //                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));
820                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
821             }
822         }
823     }else
824         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
825                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
826
827     if (ost->audio_resample) {
828         buftmp = audio_buf;
829         size_out = audio_resample(ost->resample,
830                                   (short *)buftmp, (short *)buf,
831                                   size / (dec->channels * isize));
832         size_out = size_out * enc->channels * osize;
833     } else {
834         buftmp = buf;
835         size_out = size;
836     }
837
838     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
839         const void *ibuf[6]= {buftmp};
840         void *obuf[6]= {audio_buf};
841         int istride[6]= {isize};
842         int ostride[6]= {osize};
843         int len= size_out/istride[0];
844         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
845             printf("av_audio_convert() failed\n");
846             if (exit_on_error)
847                 exit_program(1);
848             return;
849         }
850         buftmp = audio_buf;
851         size_out = len*osize;
852     }
853
854     /* now encode as many frames as possible */
855     if (enc->frame_size > 1) {
856         /* output resampled raw samples */
857         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
858             fprintf(stderr, "av_fifo_realloc2() failed\n");
859             exit_program(1);
860         }
861         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
862
863         frame_bytes = enc->frame_size * osize * enc->channels;
864
865         while (av_fifo_size(ost->fifo) >= frame_bytes) {
866             AVPacket pkt;
867             av_init_packet(&pkt);
868
869             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
870
871             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
872
873             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
874                                        (short *)audio_buf);
875             if (ret < 0) {
876                 fprintf(stderr, "Audio encoding failed\n");
877                 exit_program(1);
878             }
879             audio_size += ret;
880             pkt.stream_index= ost->index;
881             pkt.data= audio_out;
882             pkt.size= ret;
883             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
884                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
885             pkt.flags |= AV_PKT_FLAG_KEY;
886             write_frame(s, &pkt, enc, ost->bitstream_filters);
887
888             ost->sync_opts += enc->frame_size;
889         }
890     } else {
891         AVPacket pkt;
892         av_init_packet(&pkt);
893
894         ost->sync_opts += size_out / (osize * enc->channels);
895
896         /* output a pcm frame */
897         /* determine the size of the coded buffer */
898         size_out /= osize;
899         if (coded_bps)
900             size_out = size_out*coded_bps/8;
901
902         if(size_out > audio_out_size){
903             fprintf(stderr, "Internal error, buffer size too small\n");
904             exit_program(1);
905         }
906
907         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
908         ret = avcodec_encode_audio(enc, audio_out, size_out,
909                                    (short *)buftmp);
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 }
924
925 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
926 {
927     AVCodecContext *dec;
928     AVPicture *picture2;
929     AVPicture picture_tmp;
930     uint8_t *buf = 0;
931
932     dec = ist->st->codec;
933
934     /* deinterlace : must be done before any resize */
935     if (do_deinterlace) {
936         int size;
937
938         /* create temporary picture */
939         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
940         buf = av_malloc(size);
941         if (!buf)
942             return;
943
944         picture2 = &picture_tmp;
945         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
946
947         if(avpicture_deinterlace(picture2, picture,
948                                  dec->pix_fmt, dec->width, dec->height) < 0) {
949             /* if error, do not deinterlace */
950             fprintf(stderr, "Deinterlacing failed\n");
951             av_free(buf);
952             buf = NULL;
953             picture2 = picture;
954         }
955     } else {
956         picture2 = picture;
957     }
958
959     if (picture != picture2)
960         *picture = *picture2;
961     *bufp = buf;
962 }
963
964 /* we begin to correct av delay at this threshold */
965 #define AV_DELAY_MAX 0.100
966
967 static void do_subtitle_out(AVFormatContext *s,
968                             OutputStream *ost,
969                             InputStream *ist,
970                             AVSubtitle *sub,
971                             int64_t pts)
972 {
973     static uint8_t *subtitle_out = NULL;
974     int subtitle_out_max_size = 1024 * 1024;
975     int subtitle_out_size, nb, i;
976     AVCodecContext *enc;
977     AVPacket pkt;
978
979     if (pts == AV_NOPTS_VALUE) {
980         fprintf(stderr, "Subtitle packets must have a pts\n");
981         if (exit_on_error)
982             exit_program(1);
983         return;
984     }
985
986     enc = ost->st->codec;
987
988     if (!subtitle_out) {
989         subtitle_out = av_malloc(subtitle_out_max_size);
990     }
991
992     /* Note: DVB subtitle need one packet to draw them and one other
993        packet to clear them */
994     /* XXX: signal it in the codec context ? */
995     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
996         nb = 2;
997     else
998         nb = 1;
999
1000     for(i = 0; i < nb; i++) {
1001         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1002         // start_display_time is required to be 0
1003         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1004         sub->end_display_time -= sub->start_display_time;
1005         sub->start_display_time = 0;
1006         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1007                                                     subtitle_out_max_size, sub);
1008         if (subtitle_out_size < 0) {
1009             fprintf(stderr, "Subtitle encoding failed\n");
1010             exit_program(1);
1011         }
1012
1013         av_init_packet(&pkt);
1014         pkt.stream_index = ost->index;
1015         pkt.data = subtitle_out;
1016         pkt.size = subtitle_out_size;
1017         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1018         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1019             /* XXX: the pts correction is handled here. Maybe handling
1020                it in the codec would be better */
1021             if (i == 0)
1022                 pkt.pts += 90 * sub->start_display_time;
1023             else
1024                 pkt.pts += 90 * sub->end_display_time;
1025         }
1026         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1027     }
1028 }
1029
1030 static int bit_buffer_size= 1024*256;
1031 static uint8_t *bit_buffer= NULL;
1032
1033 static void do_video_out(AVFormatContext *s,
1034                          OutputStream *ost,
1035                          InputStream *ist,
1036                          AVFrame *in_picture,
1037                          int *frame_size, float quality)
1038 {
1039     int nb_frames, i, ret, resample_changed;
1040     AVFrame *final_picture, *formatted_picture;
1041     AVCodecContext *enc, *dec;
1042     double sync_ipts;
1043
1044     enc = ost->st->codec;
1045     dec = ist->st->codec;
1046
1047     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1048
1049     /* by default, we output a single frame */
1050     nb_frames = 1;
1051
1052     *frame_size = 0;
1053
1054     if(video_sync_method){
1055         double vdelta = sync_ipts - ost->sync_opts;
1056         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1057         if (vdelta < -1.1)
1058             nb_frames = 0;
1059         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1060             if(vdelta<=-0.6){
1061                 nb_frames=0;
1062             }else if(vdelta>0.6)
1063                 ost->sync_opts= lrintf(sync_ipts);
1064         }else if (vdelta > 1.1)
1065             nb_frames = lrintf(vdelta);
1066 //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);
1067         if (nb_frames == 0){
1068             ++nb_frames_drop;
1069             if (verbose>2)
1070                 fprintf(stderr, "*** drop!\n");
1071         }else if (nb_frames > 1) {
1072             nb_frames_dup += nb_frames - 1;
1073             if (verbose>2)
1074                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1075         }
1076     }else
1077         ost->sync_opts= lrintf(sync_ipts);
1078
1079     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1080     if (nb_frames <= 0)
1081         return;
1082
1083     formatted_picture = in_picture;
1084     final_picture = formatted_picture;
1085
1086     resample_changed = ost->resample_width   != dec->width  ||
1087                        ost->resample_height  != dec->height ||
1088                        ost->resample_pix_fmt != dec->pix_fmt;
1089
1090     if (resample_changed) {
1091         av_log(NULL, AV_LOG_INFO,
1092                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1093                ist->file_index, ist->st->index,
1094                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1095                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1096         if(!ost->video_resample)
1097             ost->video_resample = 1;
1098     }
1099
1100 #if !CONFIG_AVFILTER
1101     if (ost->video_resample) {
1102         final_picture = &ost->pict_tmp;
1103         if (resample_changed) {
1104             /* initialize a new scaler context */
1105             sws_freeContext(ost->img_resample_ctx);
1106             ost->img_resample_ctx = sws_getContext(
1107                 ist->st->codec->width,
1108                 ist->st->codec->height,
1109                 ist->st->codec->pix_fmt,
1110                 ost->st->codec->width,
1111                 ost->st->codec->height,
1112                 ost->st->codec->pix_fmt,
1113                 ost->sws_flags, NULL, NULL, NULL);
1114             if (ost->img_resample_ctx == NULL) {
1115                 fprintf(stderr, "Cannot get resampling context\n");
1116                 exit_program(1);
1117             }
1118         }
1119         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1120               0, ost->resample_height, final_picture->data, final_picture->linesize);
1121     }
1122 #else
1123     if (resample_changed) {
1124         avfilter_graph_free(&ost->graph);
1125         if (configure_video_filters(ist, ost)) {
1126             fprintf(stderr, "Error reinitialising filters!\n");
1127             exit_program(1);
1128         }
1129     }
1130 #endif
1131     if (resample_changed) {
1132         ost->resample_width   = dec->width;
1133         ost->resample_height  = dec->height;
1134         ost->resample_pix_fmt = dec->pix_fmt;
1135     }
1136
1137     /* duplicates frame if needed */
1138     for(i=0;i<nb_frames;i++) {
1139         AVPacket pkt;
1140         av_init_packet(&pkt);
1141         pkt.stream_index= ost->index;
1142
1143         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1144             /* raw pictures are written as AVPicture structure to
1145                avoid any copies. We support temorarily the older
1146                method. */
1147             AVFrame* old_frame = enc->coded_frame;
1148             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1149             pkt.data= (uint8_t *)final_picture;
1150             pkt.size=  sizeof(AVPicture);
1151             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1152             pkt.flags |= AV_PKT_FLAG_KEY;
1153
1154             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1155             enc->coded_frame = old_frame;
1156         } else {
1157             AVFrame big_picture;
1158
1159             big_picture= *final_picture;
1160             /* better than nothing: use input picture interlaced
1161                settings */
1162             big_picture.interlaced_frame = in_picture->interlaced_frame;
1163             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1164                 if(top_field_first == -1)
1165                     big_picture.top_field_first = in_picture->top_field_first;
1166                 else
1167                     big_picture.top_field_first = top_field_first;
1168             }
1169
1170             /* handles same_quant here. This is not correct because it may
1171                not be a global option */
1172             big_picture.quality = quality;
1173             if(!me_threshold)
1174                 big_picture.pict_type = 0;
1175 //            big_picture.pts = AV_NOPTS_VALUE;
1176             big_picture.pts= ost->sync_opts;
1177 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1178 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1179             if (ost->forced_kf_index < ost->forced_kf_count &&
1180                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1181                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1182                 ost->forced_kf_index++;
1183             }
1184             ret = avcodec_encode_video(enc,
1185                                        bit_buffer, bit_buffer_size,
1186                                        &big_picture);
1187             if (ret < 0) {
1188                 fprintf(stderr, "Video encoding failed\n");
1189                 exit_program(1);
1190             }
1191
1192             if(ret>0){
1193                 pkt.data= bit_buffer;
1194                 pkt.size= ret;
1195                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1196                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1197 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1198    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1199    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1200
1201                 if(enc->coded_frame->key_frame)
1202                     pkt.flags |= AV_PKT_FLAG_KEY;
1203                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1204                 *frame_size = ret;
1205                 video_size += ret;
1206                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1207                 //        enc->frame_number-1, ret, enc->pict_type);
1208                 /* if two pass, output log */
1209                 if (ost->logfile && enc->stats_out) {
1210                     fprintf(ost->logfile, "%s", enc->stats_out);
1211                 }
1212             }
1213         }
1214         ost->sync_opts++;
1215         ost->frame_number++;
1216     }
1217 }
1218
1219 static double psnr(double d){
1220     return -10.0*log(d)/log(10.0);
1221 }
1222
1223 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1224                            int frame_size)
1225 {
1226     AVCodecContext *enc;
1227     int frame_number;
1228     double ti1, bitrate, avg_bitrate;
1229
1230     /* this is executed just the first time do_video_stats is called */
1231     if (!vstats_file) {
1232         vstats_file = fopen(vstats_filename, "w");
1233         if (!vstats_file) {
1234             perror("fopen");
1235             exit_program(1);
1236         }
1237     }
1238
1239     enc = ost->st->codec;
1240     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1241         frame_number = ost->frame_number;
1242         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1243         if (enc->flags&CODEC_FLAG_PSNR)
1244             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1245
1246         fprintf(vstats_file,"f_size= %6d ", frame_size);
1247         /* compute pts value */
1248         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1249         if (ti1 < 0.01)
1250             ti1 = 0.01;
1251
1252         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1253         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1254         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1255             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1256         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1257     }
1258 }
1259
1260 static void print_report(AVFormatContext **output_files,
1261                          OutputStream **ost_table, int nb_ostreams,
1262                          int is_last_report)
1263 {
1264     char buf[1024];
1265     OutputStream *ost;
1266     AVFormatContext *oc;
1267     int64_t total_size;
1268     AVCodecContext *enc;
1269     int frame_number, vid, i;
1270     double bitrate, ti1, pts;
1271     static int64_t last_time = -1;
1272     static int qp_histogram[52];
1273
1274     if (!is_last_report) {
1275         int64_t cur_time;
1276         /* display the report every 0.5 seconds */
1277         cur_time = av_gettime();
1278         if (last_time == -1) {
1279             last_time = cur_time;
1280             return;
1281         }
1282         if ((cur_time - last_time) < 500000)
1283             return;
1284         last_time = cur_time;
1285     }
1286
1287
1288     oc = output_files[0];
1289
1290     total_size = avio_size(oc->pb);
1291     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1292         total_size= avio_tell(oc->pb);
1293
1294     buf[0] = '\0';
1295     ti1 = 1e10;
1296     vid = 0;
1297     for(i=0;i<nb_ostreams;i++) {
1298         float q = -1;
1299         ost = ost_table[i];
1300         enc = ost->st->codec;
1301         if (!ost->st->stream_copy && enc->coded_frame)
1302             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1303         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1304             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1305         }
1306         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1307             float t = (av_gettime()-timer_start) / 1000000.0;
1308
1309             frame_number = ost->frame_number;
1310             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1311                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1312             if(is_last_report)
1313                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1314             if(qp_hist){
1315                 int j;
1316                 int qp = lrintf(q);
1317                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1318                     qp_histogram[qp]++;
1319                 for(j=0; j<32; j++)
1320                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1321             }
1322             if (enc->flags&CODEC_FLAG_PSNR){
1323                 int j;
1324                 double error, error_sum=0;
1325                 double scale, scale_sum=0;
1326                 char type[3]= {'Y','U','V'};
1327                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1328                 for(j=0; j<3; j++){
1329                     if(is_last_report){
1330                         error= enc->error[j];
1331                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1332                     }else{
1333                         error= enc->coded_frame->error[j];
1334                         scale= enc->width*enc->height*255.0*255.0;
1335                     }
1336                     if(j) scale/=4;
1337                     error_sum += error;
1338                     scale_sum += scale;
1339                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1340                 }
1341                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1342             }
1343             vid = 1;
1344         }
1345         /* compute min output value */
1346         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1347         if ((pts < ti1) && (pts > 0))
1348             ti1 = pts;
1349     }
1350     if (ti1 < 0.01)
1351         ti1 = 0.01;
1352
1353     if (verbose > 0 || is_last_report) {
1354         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1355
1356         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1357             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1358             (double)total_size / 1024, ti1, bitrate);
1359
1360         if (nb_frames_dup || nb_frames_drop)
1361           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1362                   nb_frames_dup, nb_frames_drop);
1363
1364         if (verbose >= 0)
1365             fprintf(stderr, "%s    \r", buf);
1366
1367         fflush(stderr);
1368     }
1369
1370     if (is_last_report && verbose >= 0){
1371         int64_t raw= audio_size + video_size + extra_size;
1372         fprintf(stderr, "\n");
1373         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1374                 video_size/1024.0,
1375                 audio_size/1024.0,
1376                 extra_size/1024.0,
1377                 100.0*(total_size - raw)/raw
1378         );
1379     }
1380 }
1381
1382 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1383 {
1384     int fill_char = 0x00;
1385     if (sample_fmt == AV_SAMPLE_FMT_U8)
1386         fill_char = 0x80;
1387     memset(buf, fill_char, size);
1388 }
1389
1390 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1391 static int output_packet(InputStream *ist, int ist_index,
1392                          OutputStream **ost_table, int nb_ostreams,
1393                          const AVPacket *pkt)
1394 {
1395     AVFormatContext *os;
1396     OutputStream *ost;
1397     int ret, i;
1398     int got_output;
1399     AVFrame picture;
1400     void *buffer_to_free = NULL;
1401     static unsigned int samples_size= 0;
1402     AVSubtitle subtitle, *subtitle_to_free;
1403     int64_t pkt_pts = AV_NOPTS_VALUE;
1404 #if CONFIG_AVFILTER
1405     int frame_available;
1406 #endif
1407     float quality;
1408
1409     AVPacket avpkt;
1410     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1411
1412     if(ist->next_pts == AV_NOPTS_VALUE)
1413         ist->next_pts= ist->pts;
1414
1415     if (pkt == NULL) {
1416         /* EOF handling */
1417         av_init_packet(&avpkt);
1418         avpkt.data = NULL;
1419         avpkt.size = 0;
1420         goto handle_eof;
1421     } else {
1422         avpkt = *pkt;
1423     }
1424
1425     if(pkt->dts != AV_NOPTS_VALUE)
1426         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1427     if(pkt->pts != AV_NOPTS_VALUE)
1428         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1429
1430     //while we have more to decode or while the decoder did output something on EOF
1431     while (avpkt.size > 0 || (!pkt && got_output)) {
1432         uint8_t *data_buf, *decoded_data_buf;
1433         int data_size, decoded_data_size;
1434     handle_eof:
1435         ist->pts= ist->next_pts;
1436
1437         if(avpkt.size && avpkt.size != pkt->size &&
1438            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1439             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1440             ist->showed_multi_packet_warning=1;
1441         }
1442
1443         /* decode the packet if needed */
1444         decoded_data_buf = NULL; /* fail safe */
1445         decoded_data_size= 0;
1446         data_buf  = avpkt.data;
1447         data_size = avpkt.size;
1448         subtitle_to_free = NULL;
1449         if (ist->decoding_needed) {
1450             switch(ist->st->codec->codec_type) {
1451             case AVMEDIA_TYPE_AUDIO:{
1452                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1453                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1454                     av_free(samples);
1455                     samples= av_malloc(samples_size);
1456                 }
1457                 decoded_data_size= samples_size;
1458                     /* XXX: could avoid copy if PCM 16 bits with same
1459                        endianness as CPU */
1460                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1461                                             &avpkt);
1462                 if (ret < 0)
1463                     return ret;
1464                 avpkt.data += ret;
1465                 avpkt.size -= ret;
1466                 data_size   = ret;
1467                 got_output  = decoded_data_size > 0;
1468                 /* Some bug in mpeg audio decoder gives */
1469                 /* decoded_data_size < 0, it seems they are overflows */
1470                 if (!got_output) {
1471                     /* no audio frame */
1472                     continue;
1473                 }
1474                 decoded_data_buf = (uint8_t *)samples;
1475                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1476                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1477                 break;}
1478             case AVMEDIA_TYPE_VIDEO:
1479                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1480                     /* XXX: allocate picture correctly */
1481                     avcodec_get_frame_defaults(&picture);
1482                     avpkt.pts = pkt_pts;
1483                     avpkt.dts = ist->pts;
1484                     pkt_pts = AV_NOPTS_VALUE;
1485
1486                     ret = avcodec_decode_video2(ist->st->codec,
1487                                                 &picture, &got_output, &avpkt);
1488                     quality = same_quant ? picture.quality : 0;
1489                     if (ret < 0)
1490                         return ret;
1491                     if (!got_output) {
1492                         /* no picture yet */
1493                         goto discard_packet;
1494                     }
1495                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1496                     if (ist->st->codec->time_base.num != 0) {
1497                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1498                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1499                                           ist->st->codec->time_base.num * ticks) /
1500                             ist->st->codec->time_base.den;
1501                     }
1502                     avpkt.size = 0;
1503                     buffer_to_free = NULL;
1504                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1505                     break;
1506             case AVMEDIA_TYPE_SUBTITLE:
1507                 ret = avcodec_decode_subtitle2(ist->st->codec,
1508                                                &subtitle, &got_output, &avpkt);
1509                 if (ret < 0)
1510                     return ret;
1511                 if (!got_output) {
1512                     goto discard_packet;
1513                 }
1514                 subtitle_to_free = &subtitle;
1515                 avpkt.size = 0;
1516                 break;
1517             default:
1518                 return -1;
1519             }
1520         } else {
1521             switch(ist->st->codec->codec_type) {
1522             case AVMEDIA_TYPE_AUDIO:
1523                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1524                     ist->st->codec->sample_rate;
1525                 break;
1526             case AVMEDIA_TYPE_VIDEO:
1527                 if (ist->st->codec->time_base.num != 0) {
1528                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1529                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1530                                       ist->st->codec->time_base.num * ticks) /
1531                         ist->st->codec->time_base.den;
1532                 }
1533                 break;
1534             }
1535             ret = avpkt.size;
1536             avpkt.size = 0;
1537         }
1538
1539 #if CONFIG_AVFILTER
1540         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1541             for (i = 0; i < nb_ostreams; i++) {
1542                 ost = ost_table[i];
1543                 if (ost->input_video_filter && ost->source_index == ist_index) {
1544                     AVRational sar;
1545                     if (ist->st->sample_aspect_ratio.num)
1546                         sar = ist->st->sample_aspect_ratio;
1547                     else
1548                         sar = ist->st->codec->sample_aspect_ratio;
1549                     // add it to be filtered
1550                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1551                                              ist->pts,
1552                                              sar);
1553                 }
1554             }
1555         }
1556 #endif
1557
1558         // preprocess audio (volume)
1559         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1560             if (audio_volume != 256) {
1561                 short *volp;
1562                 volp = samples;
1563                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1564                     int v = ((*volp) * audio_volume + 128) >> 8;
1565                     if (v < -32768) v = -32768;
1566                     if (v >  32767) v = 32767;
1567                     *volp++ = v;
1568                 }
1569             }
1570         }
1571
1572         /* frame rate emulation */
1573         if (rate_emu) {
1574             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1575             int64_t now = av_gettime() - ist->start;
1576             if (pts > now)
1577                 usleep(pts - now);
1578         }
1579         /* if output time reached then transcode raw format,
1580            encode packets and output them */
1581         if (start_time == 0 || ist->pts >= start_time)
1582             for(i=0;i<nb_ostreams;i++) {
1583                 int frame_size;
1584
1585                 ost = ost_table[i];
1586                 if (ost->source_index == ist_index) {
1587 #if CONFIG_AVFILTER
1588                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1589                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1590                 while (frame_available) {
1591                     AVRational ist_pts_tb;
1592                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1593                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1594                     if (ost->picref)
1595                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1596 #endif
1597                     os = output_files[ost->file_index];
1598
1599                     /* set the input output pts pairs */
1600                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1601
1602                     if (ost->encoding_needed) {
1603                         av_assert0(ist->decoding_needed);
1604                         switch(ost->st->codec->codec_type) {
1605                         case AVMEDIA_TYPE_AUDIO:
1606                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1607                             break;
1608                         case AVMEDIA_TYPE_VIDEO:
1609 #if CONFIG_AVFILTER
1610                             if (ost->picref->video && !ost->frame_aspect_ratio)
1611                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1612 #endif
1613                             do_video_out(os, ost, ist, &picture, &frame_size,
1614                                          same_quant ? quality : ost->st->codec->global_quality);
1615                             if (vstats_filename && frame_size)
1616                                 do_video_stats(os, ost, frame_size);
1617                             break;
1618                         case AVMEDIA_TYPE_SUBTITLE:
1619                             do_subtitle_out(os, ost, ist, &subtitle,
1620                                             pkt->pts);
1621                             break;
1622                         default:
1623                             abort();
1624                         }
1625                     } else {
1626                         AVFrame avframe; //FIXME/XXX remove this
1627                         AVPacket opkt;
1628                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1629
1630                         av_init_packet(&opkt);
1631
1632                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1633 #if !CONFIG_AVFILTER
1634                             continue;
1635 #else
1636                             goto cont;
1637 #endif
1638
1639                         /* no reencoding needed : output the packet directly */
1640                         /* force the input stream PTS */
1641
1642                         avcodec_get_frame_defaults(&avframe);
1643                         ost->st->codec->coded_frame= &avframe;
1644                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1645
1646                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1647                             audio_size += data_size;
1648                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1649                             video_size += data_size;
1650                             ost->sync_opts++;
1651                         }
1652
1653                         opkt.stream_index= ost->index;
1654                         if(pkt->pts != AV_NOPTS_VALUE)
1655                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1656                         else
1657                             opkt.pts= AV_NOPTS_VALUE;
1658
1659                         if (pkt->dts == AV_NOPTS_VALUE)
1660                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1661                         else
1662                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1663                         opkt.dts -= ost_tb_start_time;
1664
1665                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1666                         opkt.flags= pkt->flags;
1667
1668                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1669                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1670                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1671                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1672                            ) {
1673                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1674                                 opkt.destruct= av_destruct_packet;
1675                         } else {
1676                             opkt.data = data_buf;
1677                             opkt.size = data_size;
1678                         }
1679
1680                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1681                         ost->st->codec->frame_number++;
1682                         ost->frame_number++;
1683                         av_free_packet(&opkt);
1684                     }
1685 #if CONFIG_AVFILTER
1686                     cont:
1687                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1688                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1689                     if (ost->picref)
1690                         avfilter_unref_buffer(ost->picref);
1691                 }
1692 #endif
1693                 }
1694             }
1695
1696         av_free(buffer_to_free);
1697         /* XXX: allocate the subtitles in the codec ? */
1698         if (subtitle_to_free) {
1699             avsubtitle_free(subtitle_to_free);
1700             subtitle_to_free = NULL;
1701         }
1702     }
1703  discard_packet:
1704     if (pkt == NULL) {
1705         /* EOF handling */
1706
1707         for(i=0;i<nb_ostreams;i++) {
1708             ost = ost_table[i];
1709             if (ost->source_index == ist_index) {
1710                 AVCodecContext *enc= ost->st->codec;
1711                 os = output_files[ost->file_index];
1712
1713                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1714                     continue;
1715                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1716                     continue;
1717
1718                 if (ost->encoding_needed) {
1719                     for(;;) {
1720                         AVPacket pkt;
1721                         int fifo_bytes;
1722                         av_init_packet(&pkt);
1723                         pkt.stream_index= ost->index;
1724
1725                         switch(ost->st->codec->codec_type) {
1726                         case AVMEDIA_TYPE_AUDIO:
1727                             fifo_bytes = av_fifo_size(ost->fifo);
1728                             ret = 0;
1729                             /* encode any samples remaining in fifo */
1730                             if (fifo_bytes > 0) {
1731                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1732                                 int fs_tmp = enc->frame_size;
1733
1734                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1735                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1736                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1737                                 } else { /* pad */
1738                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1739                                     if (allocated_audio_buf_size < frame_bytes)
1740                                         exit_program(1);
1741                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1742                                 }
1743
1744                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1745                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1746                                                           ost->st->time_base.num, enc->sample_rate);
1747                                 enc->frame_size = fs_tmp;
1748                             }
1749                             if(ret <= 0) {
1750                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1751                             }
1752                             if (ret < 0) {
1753                                 fprintf(stderr, "Audio encoding failed\n");
1754                                 exit_program(1);
1755                             }
1756                             audio_size += ret;
1757                             pkt.flags |= AV_PKT_FLAG_KEY;
1758                             break;
1759                         case AVMEDIA_TYPE_VIDEO:
1760                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1761                             if (ret < 0) {
1762                                 fprintf(stderr, "Video encoding failed\n");
1763                                 exit_program(1);
1764                             }
1765                             video_size += ret;
1766                             if(enc->coded_frame && enc->coded_frame->key_frame)
1767                                 pkt.flags |= AV_PKT_FLAG_KEY;
1768                             if (ost->logfile && enc->stats_out) {
1769                                 fprintf(ost->logfile, "%s", enc->stats_out);
1770                             }
1771                             break;
1772                         default:
1773                             ret=-1;
1774                         }
1775
1776                         if(ret<=0)
1777                             break;
1778                         pkt.data= bit_buffer;
1779                         pkt.size= ret;
1780                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1781                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1782                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1783                     }
1784                 }
1785             }
1786         }
1787     }
1788
1789     return 0;
1790 }
1791
1792 static void print_sdp(AVFormatContext **avc, int n)
1793 {
1794     char sdp[2048];
1795
1796     av_sdp_create(avc, n, sdp, sizeof(sdp));
1797     printf("SDP:\n%s\n", sdp);
1798     fflush(stdout);
1799 }
1800
1801 /*
1802  * The following code is the main loop of the file converter
1803  */
1804 static int transcode(AVFormatContext **output_files,
1805                      int nb_output_files,
1806                      InputFile *input_files,
1807                      int nb_input_files)
1808 {
1809     int ret = 0, i, j, k, n, nb_ostreams = 0;
1810     AVFormatContext *is, *os;
1811     AVCodecContext *codec, *icodec;
1812     OutputStream *ost, **ost_table = NULL;
1813     InputStream *ist;
1814     char error[1024];
1815     int want_sdp = 1;
1816     uint8_t no_packet[MAX_FILES]={0};
1817     int no_packet_count=0;
1818
1819     if (rate_emu)
1820         for (i = 0; i < nb_input_streams; i++)
1821             input_streams[i].start = av_gettime();
1822
1823     /* output stream init */
1824     nb_ostreams = 0;
1825     for(i=0;i<nb_output_files;i++) {
1826         os = output_files[i];
1827         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1828             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1829             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1830             ret = AVERROR(EINVAL);
1831             goto fail;
1832         }
1833         nb_ostreams += os->nb_streams;
1834     }
1835
1836     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1837     if (!ost_table)
1838         goto fail;
1839     n = 0;
1840     for(k=0;k<nb_output_files;k++) {
1841         os = output_files[k];
1842         for (i = 0; i < os->nb_streams; i++, n++)
1843             ost_table[n] = output_streams_for_file[k][i];
1844     }
1845
1846     /* for each output stream, we compute the right encoding parameters */
1847     for(i=0;i<nb_ostreams;i++) {
1848         ost = ost_table[i];
1849         os = output_files[ost->file_index];
1850         ist = &input_streams[ost->source_index];
1851
1852         codec = ost->st->codec;
1853         icodec = ist->st->codec;
1854
1855         ost->st->disposition = ist->st->disposition;
1856         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1857         codec->chroma_sample_location = icodec->chroma_sample_location;
1858
1859         if (ost->st->stream_copy) {
1860             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1861
1862             if (extra_size > INT_MAX)
1863                 goto fail;
1864
1865             /* if stream_copy is selected, no need to decode or encode */
1866             codec->codec_id = icodec->codec_id;
1867             codec->codec_type = icodec->codec_type;
1868
1869             if(!codec->codec_tag){
1870                 if(   !os->oformat->codec_tag
1871                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1872                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1873                     codec->codec_tag = icodec->codec_tag;
1874             }
1875
1876             codec->bit_rate = icodec->bit_rate;
1877             codec->rc_max_rate    = icodec->rc_max_rate;
1878             codec->rc_buffer_size = icodec->rc_buffer_size;
1879             codec->extradata= av_mallocz(extra_size);
1880             if (!codec->extradata)
1881                 goto fail;
1882             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1883             codec->extradata_size= icodec->extradata_size;
1884             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){
1885                 codec->time_base = icodec->time_base;
1886                 codec->time_base.num *= icodec->ticks_per_frame;
1887                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1888                           codec->time_base.num, codec->time_base.den, INT_MAX);
1889             }else
1890                 codec->time_base = ist->st->time_base;
1891             switch(codec->codec_type) {
1892             case AVMEDIA_TYPE_AUDIO:
1893                 if(audio_volume != 256) {
1894                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1895                     exit_program(1);
1896                 }
1897                 codec->channel_layout = icodec->channel_layout;
1898                 codec->sample_rate = icodec->sample_rate;
1899                 codec->channels = icodec->channels;
1900                 codec->frame_size = icodec->frame_size;
1901                 codec->audio_service_type = icodec->audio_service_type;
1902                 codec->block_align= icodec->block_align;
1903                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1904                     codec->block_align= 0;
1905                 if(codec->codec_id == CODEC_ID_AC3)
1906                     codec->block_align= 0;
1907                 break;
1908             case AVMEDIA_TYPE_VIDEO:
1909                 codec->pix_fmt = icodec->pix_fmt;
1910                 codec->width = icodec->width;
1911                 codec->height = icodec->height;
1912                 codec->has_b_frames = icodec->has_b_frames;
1913                 if (!codec->sample_aspect_ratio.num) {
1914                     codec->sample_aspect_ratio =
1915                     ost->st->sample_aspect_ratio =
1916                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1917                         ist->st->codec->sample_aspect_ratio.num ?
1918                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1919                 }
1920                 break;
1921             case AVMEDIA_TYPE_SUBTITLE:
1922                 codec->width = icodec->width;
1923                 codec->height = icodec->height;
1924                 break;
1925             case AVMEDIA_TYPE_DATA:
1926                 break;
1927             default:
1928                 abort();
1929             }
1930         } else {
1931             if (!ost->enc)
1932                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1933             switch(codec->codec_type) {
1934             case AVMEDIA_TYPE_AUDIO:
1935                 ost->fifo= av_fifo_alloc(1024);
1936                 if(!ost->fifo)
1937                     goto fail;
1938                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1939                 if (!codec->sample_rate) {
1940                     codec->sample_rate = icodec->sample_rate;
1941                     if (icodec->lowres)
1942                         codec->sample_rate >>= icodec->lowres;
1943                 }
1944                 choose_sample_rate(ost->st, ost->enc);
1945                 codec->time_base = (AVRational){1, codec->sample_rate};
1946                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1947                     codec->sample_fmt = icodec->sample_fmt;
1948                 choose_sample_fmt(ost->st, ost->enc);
1949                 if (!codec->channels)
1950                     codec->channels = icodec->channels;
1951                 codec->channel_layout = icodec->channel_layout;
1952                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1953                     codec->channel_layout = 0;
1954                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1955                 icodec->request_channels = codec->channels;
1956                 ist->decoding_needed = 1;
1957                 ost->encoding_needed = 1;
1958                 ost->resample_sample_fmt  = icodec->sample_fmt;
1959                 ost->resample_sample_rate = icodec->sample_rate;
1960                 ost->resample_channels    = icodec->channels;
1961                 break;
1962             case AVMEDIA_TYPE_VIDEO:
1963                 if (codec->pix_fmt == PIX_FMT_NONE)
1964                     codec->pix_fmt = icodec->pix_fmt;
1965                 choose_pixel_fmt(ost->st, ost->enc);
1966
1967                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1968                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1969                     exit_program(1);
1970                 }
1971
1972                 if (!codec->width || !codec->height) {
1973                     codec->width  = icodec->width;
1974                     codec->height = icodec->height;
1975                 }
1976
1977                 ost->video_resample = codec->width   != icodec->width  ||
1978                                       codec->height  != icodec->height ||
1979                                       codec->pix_fmt != icodec->pix_fmt;
1980                 if (ost->video_resample) {
1981 #if !CONFIG_AVFILTER
1982                     avcodec_get_frame_defaults(&ost->pict_tmp);
1983                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1984                                        codec->width, codec->height)) {
1985                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1986                         exit_program(1);
1987                     }
1988                     ost->img_resample_ctx = sws_getContext(
1989                         icodec->width,
1990                         icodec->height,
1991                         icodec->pix_fmt,
1992                         codec->width,
1993                         codec->height,
1994                         codec->pix_fmt,
1995                         ost->sws_flags, NULL, NULL, NULL);
1996                     if (ost->img_resample_ctx == NULL) {
1997                         fprintf(stderr, "Cannot get resampling context\n");
1998                         exit_program(1);
1999                     }
2000 #endif
2001                     codec->bits_per_raw_sample= 0;
2002                 }
2003
2004                 ost->resample_height = icodec->height;
2005                 ost->resample_width  = icodec->width;
2006                 ost->resample_pix_fmt= icodec->pix_fmt;
2007                 ost->encoding_needed = 1;
2008                 ist->decoding_needed = 1;
2009
2010                 if (!ost->frame_rate.num)
2011                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2012                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2013                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2014                     ost->frame_rate = ost->enc->supported_framerates[idx];
2015                 }
2016                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2017
2018 #if CONFIG_AVFILTER
2019                 if (configure_video_filters(ist, ost)) {
2020                     fprintf(stderr, "Error opening filters!\n");
2021                     exit(1);
2022                 }
2023 #endif
2024                 break;
2025             case AVMEDIA_TYPE_SUBTITLE:
2026                 ost->encoding_needed = 1;
2027                 ist->decoding_needed = 1;
2028                 break;
2029             default:
2030                 abort();
2031                 break;
2032             }
2033             /* two pass mode */
2034             if (ost->encoding_needed &&
2035                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2036                 char logfilename[1024];
2037                 FILE *f;
2038
2039                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2040                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2041                          i);
2042                 if (codec->flags & CODEC_FLAG_PASS1) {
2043                     f = fopen(logfilename, "wb");
2044                     if (!f) {
2045                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2046                         exit_program(1);
2047                     }
2048                     ost->logfile = f;
2049                 } else {
2050                     char  *logbuffer;
2051                     size_t logbuffer_size;
2052                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2053                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2054                         exit_program(1);
2055                     }
2056                     codec->stats_in = logbuffer;
2057                 }
2058             }
2059         }
2060         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2061             int size= codec->width * codec->height;
2062             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2063         }
2064     }
2065
2066     if (!bit_buffer)
2067         bit_buffer = av_malloc(bit_buffer_size);
2068     if (!bit_buffer) {
2069         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2070                 bit_buffer_size);
2071         ret = AVERROR(ENOMEM);
2072         goto fail;
2073     }
2074
2075     /* open each encoder */
2076     for(i=0;i<nb_ostreams;i++) {
2077         ost = ost_table[i];
2078         if (ost->encoding_needed) {
2079             AVCodec *codec = ost->enc;
2080             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2081             if (!codec) {
2082                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2083                          ost->st->codec->codec_id, ost->file_index, ost->index);
2084                 ret = AVERROR(EINVAL);
2085                 goto dump_format;
2086             }
2087             if (dec->subtitle_header) {
2088                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2089                 if (!ost->st->codec->subtitle_header) {
2090                     ret = AVERROR(ENOMEM);
2091                     goto dump_format;
2092                 }
2093                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2094                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2095             }
2096             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2097                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2098                         ost->file_index, ost->index);
2099                 ret = AVERROR(EINVAL);
2100                 goto dump_format;
2101             }
2102             assert_codec_experimental(ost->st->codec, 1);
2103             assert_avoptions(ost->opts);
2104             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2105                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2106                                              "It takes bits/s as argument, not kbits/s\n");
2107             extra_size += ost->st->codec->extradata_size;
2108         }
2109     }
2110
2111     /* open each decoder */
2112     for (i = 0; i < nb_input_streams; i++) {
2113         ist = &input_streams[i];
2114         if (ist->decoding_needed) {
2115             AVCodec *codec = ist->dec;
2116             if (!codec)
2117                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2118             if (!codec) {
2119                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2120                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2121                 ret = AVERROR(EINVAL);
2122                 goto dump_format;
2123             }
2124
2125             /* update requested sample format for the decoder based on the
2126                corresponding encoder sample format */
2127             for (j = 0; j < nb_ostreams; j++) {
2128                 ost = ost_table[j];
2129                 if (ost->source_index == i) {
2130                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2131                     break;
2132                 }
2133             }
2134
2135             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2136                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2137                         ist->file_index, ist->st->index);
2138                 ret = AVERROR(EINVAL);
2139                 goto dump_format;
2140             }
2141             assert_codec_experimental(ist->st->codec, 0);
2142             assert_avoptions(ost->opts);
2143         }
2144     }
2145
2146     /* init pts */
2147     for (i = 0; i < nb_input_streams; i++) {
2148         AVStream *st;
2149         ist = &input_streams[i];
2150         st= ist->st;
2151         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2152         ist->next_pts = AV_NOPTS_VALUE;
2153         init_pts_correction(&ist->pts_ctx);
2154         ist->is_start = 1;
2155     }
2156
2157     /* open files and write file headers */
2158     for(i=0;i<nb_output_files;i++) {
2159         os = output_files[i];
2160         if (avformat_write_header(os, &output_opts[i]) < 0) {
2161             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2162             ret = AVERROR(EINVAL);
2163             goto dump_format;
2164         }
2165         assert_avoptions(output_opts[i]);
2166         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2167             want_sdp = 0;
2168         }
2169     }
2170
2171  dump_format:
2172     /* dump the file output parameters - cannot be done before in case
2173        of stream copy */
2174     for(i=0;i<nb_output_files;i++) {
2175         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2176     }
2177
2178     /* dump the stream mapping */
2179     if (verbose >= 0) {
2180         fprintf(stderr, "Stream mapping:\n");
2181         for(i=0;i<nb_ostreams;i++) {
2182             ost = ost_table[i];
2183             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2184                     input_streams[ost->source_index].file_index,
2185                     input_streams[ost->source_index].st->index,
2186                     ost->file_index,
2187                     ost->index);
2188             if (ost->sync_ist != &input_streams[ost->source_index])
2189                 fprintf(stderr, " [sync #%d.%d]",
2190                         ost->sync_ist->file_index,
2191                         ost->sync_ist->st->index);
2192             fprintf(stderr, "\n");
2193         }
2194     }
2195
2196     if (ret) {
2197         fprintf(stderr, "%s\n", error);
2198         goto fail;
2199     }
2200
2201     if (want_sdp) {
2202         print_sdp(output_files, nb_output_files);
2203     }
2204
2205     if (verbose >= 0)
2206         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2207     term_init();
2208
2209     timer_start = av_gettime();
2210
2211     for(; received_sigterm == 0;) {
2212         int file_index, ist_index;
2213         AVPacket pkt;
2214         double ipts_min;
2215         double opts_min;
2216
2217     redo:
2218         ipts_min= 1e100;
2219         opts_min= 1e100;
2220
2221         /* select the stream that we must read now by looking at the
2222            smallest output pts */
2223         file_index = -1;
2224         for(i=0;i<nb_ostreams;i++) {
2225             double ipts, opts;
2226             ost = ost_table[i];
2227             os = output_files[ost->file_index];
2228             ist = &input_streams[ost->source_index];
2229             if(ist->is_past_recording_time || no_packet[ist->file_index])
2230                 continue;
2231                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2232             ipts = (double)ist->pts;
2233             if (!input_files[ist->file_index].eof_reached){
2234                 if(ipts < ipts_min) {
2235                     ipts_min = ipts;
2236                     if(input_sync ) file_index = ist->file_index;
2237                 }
2238                 if(opts < opts_min) {
2239                     opts_min = opts;
2240                     if(!input_sync) file_index = ist->file_index;
2241                 }
2242             }
2243             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2244                 file_index= -1;
2245                 break;
2246             }
2247         }
2248         /* if none, if is finished */
2249         if (file_index < 0) {
2250             if(no_packet_count){
2251                 no_packet_count=0;
2252                 memset(no_packet, 0, sizeof(no_packet));
2253                 usleep(10000);
2254                 continue;
2255             }
2256             break;
2257         }
2258
2259         /* finish if limit size exhausted */
2260         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2261             break;
2262
2263         /* read a frame from it and output it in the fifo */
2264         is = input_files[file_index].ctx;
2265         ret= av_read_frame(is, &pkt);
2266         if(ret == AVERROR(EAGAIN)){
2267             no_packet[file_index]=1;
2268             no_packet_count++;
2269             continue;
2270         }
2271         if (ret < 0) {
2272             input_files[file_index].eof_reached = 1;
2273             if (opt_shortest)
2274                 break;
2275             else
2276                 continue;
2277         }
2278
2279         no_packet_count=0;
2280         memset(no_packet, 0, sizeof(no_packet));
2281
2282         if (do_pkt_dump) {
2283             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2284                              is->streams[pkt.stream_index]);
2285         }
2286         /* the following test is needed in case new streams appear
2287            dynamically in stream : we ignore them */
2288         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2289             goto discard_packet;
2290         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2291         ist = &input_streams[ist_index];
2292         if (ist->discard)
2293             goto discard_packet;
2294
2295         if (pkt.dts != AV_NOPTS_VALUE)
2296             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2297         if (pkt.pts != AV_NOPTS_VALUE)
2298             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2299
2300         if (ist->ts_scale) {
2301             if(pkt.pts != AV_NOPTS_VALUE)
2302                 pkt.pts *= ist->ts_scale;
2303             if(pkt.dts != AV_NOPTS_VALUE)
2304                 pkt.dts *= ist->ts_scale;
2305         }
2306
2307 //        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);
2308         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2309             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2310             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2311             int64_t delta= pkt_dts - ist->next_pts;
2312             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2313                 input_files[ist->file_index].ts_offset -= delta;
2314                 if (verbose > 2)
2315                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2316                             delta, input_files[ist->file_index].ts_offset);
2317                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2318                 if(pkt.pts != AV_NOPTS_VALUE)
2319                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2320             }
2321         }
2322
2323         /* finish if recording time exhausted */
2324         if (recording_time != INT64_MAX &&
2325             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2326             ist->is_past_recording_time = 1;
2327             goto discard_packet;
2328         }
2329
2330         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2331         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2332
2333             if (verbose >= 0)
2334                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2335                         ist->file_index, ist->st->index);
2336             if (exit_on_error)
2337                 exit_program(1);
2338             av_free_packet(&pkt);
2339             goto redo;
2340         }
2341
2342     discard_packet:
2343         av_free_packet(&pkt);
2344
2345         /* dump report by using the output first video and audio streams */
2346         print_report(output_files, ost_table, nb_ostreams, 0);
2347     }
2348
2349     /* at the end of stream, we must flush the decoder buffers */
2350     for (i = 0; i < nb_input_streams; i++) {
2351         ist = &input_streams[i];
2352         if (ist->decoding_needed) {
2353             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2354         }
2355     }
2356
2357     term_exit();
2358
2359     /* write the trailer if needed and close file */
2360     for(i=0;i<nb_output_files;i++) {
2361         os = output_files[i];
2362         av_write_trailer(os);
2363     }
2364
2365     /* dump report by using the first video and audio streams */
2366     print_report(output_files, ost_table, nb_ostreams, 1);
2367
2368     /* close each encoder */
2369     for(i=0;i<nb_ostreams;i++) {
2370         ost = ost_table[i];
2371         if (ost->encoding_needed) {
2372             av_freep(&ost->st->codec->stats_in);
2373             avcodec_close(ost->st->codec);
2374         }
2375 #if CONFIG_AVFILTER
2376         avfilter_graph_free(&ost->graph);
2377 #endif
2378     }
2379
2380     /* close each decoder */
2381     for (i = 0; i < nb_input_streams; i++) {
2382         ist = &input_streams[i];
2383         if (ist->decoding_needed) {
2384             avcodec_close(ist->st->codec);
2385         }
2386     }
2387
2388     /* finished ! */
2389     ret = 0;
2390
2391  fail:
2392     av_freep(&bit_buffer);
2393
2394     if (ost_table) {
2395         for(i=0;i<nb_ostreams;i++) {
2396             ost = ost_table[i];
2397             if (ost) {
2398                 if (ost->st->stream_copy)
2399                     av_freep(&ost->st->codec->extradata);
2400                 if (ost->logfile) {
2401                     fclose(ost->logfile);
2402                     ost->logfile = NULL;
2403                 }
2404                 av_fifo_free(ost->fifo); /* works even if fifo is not
2405                                              initialized but set to zero */
2406                 av_freep(&ost->st->codec->subtitle_header);
2407                 av_free(ost->pict_tmp.data[0]);
2408                 av_free(ost->forced_kf_pts);
2409                 if (ost->video_resample)
2410                     sws_freeContext(ost->img_resample_ctx);
2411                 if (ost->resample)
2412                     audio_resample_close(ost->resample);
2413                 if (ost->reformat_ctx)
2414                     av_audio_convert_free(ost->reformat_ctx);
2415                 av_dict_free(&ost->opts);
2416                 av_free(ost);
2417             }
2418         }
2419         av_free(ost_table);
2420     }
2421     return ret;
2422 }
2423
2424 static int opt_format(const char *opt, const char *arg)
2425 {
2426     last_asked_format = arg;
2427     return 0;
2428 }
2429
2430 static int opt_video_rc_override_string(const char *opt, const char *arg)
2431 {
2432     video_rc_override_string = arg;
2433     return 0;
2434 }
2435
2436 static int opt_me_threshold(const char *opt, const char *arg)
2437 {
2438     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2439     return 0;
2440 }
2441
2442 static int opt_verbose(const char *opt, const char *arg)
2443 {
2444     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2445     return 0;
2446 }
2447
2448 static int opt_frame_rate(const char *opt, const char *arg)
2449 {
2450     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2451         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2452         exit_program(1);
2453     }
2454     return 0;
2455 }
2456
2457 static int opt_frame_crop(const char *opt, const char *arg)
2458 {
2459     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2460     return AVERROR(EINVAL);
2461 }
2462
2463 static int opt_frame_size(const char *opt, const char *arg)
2464 {
2465     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2466         fprintf(stderr, "Incorrect frame size\n");
2467         return AVERROR(EINVAL);
2468     }
2469     return 0;
2470 }
2471
2472 static int opt_pad(const char *opt, const char *arg) {
2473     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2474     return -1;
2475 }
2476
2477 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2478 {
2479     if (strcmp(arg, "list")) {
2480         frame_pix_fmt = av_get_pix_fmt(arg);
2481         if (frame_pix_fmt == PIX_FMT_NONE) {
2482             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2483             return AVERROR(EINVAL);
2484         }
2485     } else {
2486         show_pix_fmts();
2487         exit_program(0);
2488     }
2489     return 0;
2490 }
2491
2492 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2493 {
2494     int x = 0, y = 0;
2495     double ar = 0;
2496     const char *p;
2497     char *end;
2498
2499     p = strchr(arg, ':');
2500     if (p) {
2501         x = strtol(arg, &end, 10);
2502         if (end == p)
2503             y = strtol(end+1, &end, 10);
2504         if (x > 0 && y > 0)
2505             ar = (double)x / (double)y;
2506     } else
2507         ar = strtod(arg, NULL);
2508
2509     if (!ar) {
2510         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2511         return AVERROR(EINVAL);
2512     }
2513     frame_aspect_ratio = ar;
2514     return 0;
2515 }
2516
2517 static int opt_metadata(const char *opt, const char *arg)
2518 {
2519     char *mid= strchr(arg, '=');
2520
2521     if(!mid){
2522         fprintf(stderr, "Missing =\n");
2523         exit_program(1);
2524     }
2525     *mid++= 0;
2526
2527     av_dict_set(&metadata, arg, mid, 0);
2528
2529     return 0;
2530 }
2531
2532 static int opt_qscale(const char *opt, const char *arg)
2533 {
2534     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2535     if (video_qscale == 0) {
2536         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2537         return AVERROR(EINVAL);
2538     }
2539     return 0;
2540 }
2541
2542 static int opt_top_field_first(const char *opt, const char *arg)
2543 {
2544     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2545     return 0;
2546 }
2547
2548 static int opt_thread_count(const char *opt, const char *arg)
2549 {
2550     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2551 #if !HAVE_THREADS
2552     if (verbose >= 0)
2553         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2554 #endif
2555     return 0;
2556 }
2557
2558 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2559 {
2560     if (strcmp(arg, "list")) {
2561         audio_sample_fmt = av_get_sample_fmt(arg);
2562         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2563             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2564             return AVERROR(EINVAL);
2565         }
2566     } else {
2567         int i;
2568         char fmt_str[128];
2569         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2570             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2571         exit_program(0);
2572     }
2573     return 0;
2574 }
2575
2576 static int opt_audio_rate(const char *opt, const char *arg)
2577 {
2578     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2579     return 0;
2580 }
2581
2582 static int opt_audio_channels(const char *opt, const char *arg)
2583 {
2584     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2585     return 0;
2586 }
2587
2588 static int opt_codec(const char *opt, const char *arg)
2589 {
2590     return av_dict_set(&codec_names, opt, arg, 0);
2591 }
2592
2593 static int opt_audio_codec(const char *opt, const char *arg)
2594 {
2595     return opt_codec("codec:a", arg);
2596 }
2597
2598 static int opt_video_codec(const char *opt, const char *arg)
2599 {
2600     return opt_codec("codec:v", arg);
2601 }
2602
2603 static int opt_subtitle_codec(const char *opt, const char *arg)
2604 {
2605     return opt_codec("codec:s", arg);
2606 }
2607
2608 static int opt_data_codec(const char *opt, const char *arg)
2609 {
2610     return opt_codec("codec:d", arg);
2611 }
2612
2613 static int opt_codec_tag(const char *opt, const char *arg)
2614 {
2615     char *tail;
2616     uint32_t *codec_tag;
2617
2618     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2619                 !strcmp(opt, "vtag") ? &video_codec_tag :
2620                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2621     if (!codec_tag)
2622         return -1;
2623
2624     *codec_tag = strtol(arg, &tail, 0);
2625     if (!tail || *tail)
2626         *codec_tag = AV_RL32(arg);
2627
2628     return 0;
2629 }
2630
2631 static int opt_map(const char *opt, const char *arg)
2632 {
2633     StreamMap *m = NULL;
2634     int i, negative = 0, file_idx;
2635     int sync_file_idx = -1, sync_stream_idx;
2636     char *p, *sync;
2637     char *map;
2638
2639     if (*arg == '-') {
2640         negative = 1;
2641         arg++;
2642     }
2643     map = av_strdup(arg);
2644
2645     /* parse sync stream first, just pick first matching stream */
2646     if (sync = strchr(map, ',')) {
2647         *sync = 0;
2648         sync_file_idx = strtol(sync + 1, &sync, 0);
2649         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2650             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2651             exit_program(1);
2652         }
2653         if (*sync)
2654             sync++;
2655         for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2656             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2657                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2658                 sync_stream_idx = i;
2659                 break;
2660             }
2661         if (i == input_files[sync_file_idx].ctx->nb_streams) {
2662             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2663                                        "match any streams.\n", arg);
2664             exit_program(1);
2665         }
2666     }
2667
2668
2669     file_idx = strtol(map, &p, 0);
2670     if (file_idx >= nb_input_files || file_idx < 0) {
2671         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2672         exit_program(1);
2673     }
2674     if (negative)
2675         /* disable some already defined maps */
2676         for (i = 0; i < nb_stream_maps; i++) {
2677             m = &stream_maps[i];
2678             if (check_stream_specifier(input_files[m->file_index].ctx,
2679                                        input_files[m->file_index].ctx->streams[m->stream_index],
2680                                        *p == ':' ? p + 1 : p) > 0)
2681                 m->disabled = 1;
2682         }
2683     else
2684         for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2685             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2686                         *p == ':' ? p + 1 : p) <= 0)
2687                 continue;
2688             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2689             m = &stream_maps[nb_stream_maps - 1];
2690
2691             m->file_index   = file_idx;
2692             m->stream_index = i;
2693
2694             if (sync_file_idx >= 0) {
2695                 m->sync_file_index   = sync_file_idx;
2696                 m->sync_stream_index = sync_stream_idx;
2697             } else {
2698                 m->sync_file_index   = file_idx;
2699                 m->sync_stream_index = i;
2700             }
2701         }
2702
2703     if (!m) {
2704         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2705         exit_program(1);
2706     }
2707
2708     av_freep(&map);
2709     return 0;
2710 }
2711
2712 static void parse_meta_type(char *arg, char *type, int *index)
2713 {
2714     if (*arg == ':') {
2715         *type = *(++arg);
2716         switch (*arg) {
2717         case 'g':
2718             break;
2719         case 's':
2720         case 'c':
2721         case 'p':
2722             if (*(++arg) == ':')
2723                 *index = strtol(++arg, NULL, 0);
2724             break;
2725         default:
2726             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2727             exit_program(1);
2728         }
2729     } else
2730         *type = 'g';
2731 }
2732
2733 static int opt_map_metadata(const char *opt, const char *arg)
2734 {
2735     MetadataMap *m, *m1;
2736     char *p;
2737
2738     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2739                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2740
2741     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2742     m->file = strtol(arg, &p, 0);
2743     parse_meta_type(p, &m->type, &m->index);
2744
2745     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2746     if (p = strchr(opt, ':'))
2747         parse_meta_type(p, &m1->type, &m1->index);
2748     else
2749         m1->type = 'g';
2750
2751     if (m->type == 'g' || m1->type == 'g')
2752         metadata_global_autocopy = 0;
2753     if (m->type == 's' || m1->type == 's')
2754         metadata_streams_autocopy = 0;
2755     if (m->type == 'c' || m1->type == 'c')
2756         metadata_chapters_autocopy = 0;
2757
2758     return 0;
2759 }
2760
2761 static int opt_input_ts_scale(const char *opt, const char *arg)
2762 {
2763     unsigned int stream;
2764     double scale;
2765     char *p;
2766
2767     stream = strtol(arg, &p, 0);
2768     if (*p)
2769         p++;
2770     scale= strtod(p, &p);
2771
2772     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2773     ts_scale[stream] = scale;
2774     return 0;
2775 }
2776
2777 static int opt_recording_time(const char *opt, const char *arg)
2778 {
2779     recording_time = parse_time_or_die(opt, arg, 1);
2780     return 0;
2781 }
2782
2783 static int opt_start_time(const char *opt, const char *arg)
2784 {
2785     start_time = parse_time_or_die(opt, arg, 1);
2786     return 0;
2787 }
2788
2789 static int opt_input_ts_offset(const char *opt, const char *arg)
2790 {
2791     input_ts_offset = parse_time_or_die(opt, arg, 1);
2792     return 0;
2793 }
2794
2795 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2796 {
2797     const char *codec_string = encoder ? "encoder" : "decoder";
2798     AVCodec *codec;
2799
2800     if(!name)
2801         return CODEC_ID_NONE;
2802     codec = encoder ?
2803         avcodec_find_encoder_by_name(name) :
2804         avcodec_find_decoder_by_name(name);
2805     if(!codec) {
2806         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2807         exit_program(1);
2808     }
2809     if(codec->type != type) {
2810         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2811         exit_program(1);
2812     }
2813     return codec->id;
2814 }
2815
2816 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2817 {
2818     AVDictionaryEntry *e = NULL;
2819     char *codec_name = NULL;
2820     int ret;
2821
2822     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2823         char *p = strchr(e->key, ':');
2824
2825         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2826             codec_name = e->value;
2827         else if (ret < 0)
2828             exit_program(1);
2829     }
2830
2831     if (!codec_name) {
2832         if (s->oformat) {
2833             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2834             return avcodec_find_encoder(st->codec->codec_id);
2835         }
2836     } else if (!strcmp(codec_name, "copy"))
2837         st->stream_copy = 1;
2838     else {
2839         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2840         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2841                             avcodec_find_decoder_by_name(codec_name);
2842     }
2843
2844     return NULL;
2845 }
2846
2847 static int opt_input_file(const char *opt, const char *filename)
2848 {
2849     AVFormatContext *ic;
2850     AVInputFormat *file_iformat = NULL;
2851     int err, i, ret, rfps, rfps_base;
2852     int64_t timestamp;
2853     uint8_t buf[128];
2854     AVDictionary **opts;
2855     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2856
2857     if (last_asked_format) {
2858         if (!(file_iformat = av_find_input_format(last_asked_format))) {
2859             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2860             exit_program(1);
2861         }
2862         last_asked_format = NULL;
2863     }
2864
2865     if (!strcmp(filename, "-"))
2866         filename = "pipe:";
2867
2868     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2869                     !strcmp(filename, "/dev/stdin");
2870
2871     /* get default parameters from command line */
2872     ic = avformat_alloc_context();
2873     if (!ic) {
2874         print_error(filename, AVERROR(ENOMEM));
2875         exit_program(1);
2876     }
2877     if (audio_sample_rate) {
2878         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2879         av_dict_set(&format_opts, "sample_rate", buf, 0);
2880     }
2881     if (audio_channels) {
2882         snprintf(buf, sizeof(buf), "%d", audio_channels);
2883         av_dict_set(&format_opts, "channels", buf, 0);
2884     }
2885     if (frame_rate.num) {
2886         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2887         av_dict_set(&format_opts, "framerate", buf, 0);
2888     }
2889     if (frame_width && frame_height) {
2890         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2891         av_dict_set(&format_opts, "video_size", buf, 0);
2892     }
2893     if (frame_pix_fmt != PIX_FMT_NONE)
2894         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2895
2896     ic->flags |= AVFMT_FLAG_NONBLOCK;
2897
2898     /* open the input file with generic libav function */
2899     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2900     if (err < 0) {
2901         print_error(filename, err);
2902         exit_program(1);
2903     }
2904     assert_avoptions(format_opts);
2905
2906     if(opt_programid) {
2907         int i, j;
2908         int found=0;
2909         for(i=0; i<ic->nb_streams; i++){
2910             ic->streams[i]->discard= AVDISCARD_ALL;
2911         }
2912         for(i=0; i<ic->nb_programs; i++){
2913             AVProgram *p= ic->programs[i];
2914             if(p->id != opt_programid){
2915                 p->discard = AVDISCARD_ALL;
2916             }else{
2917                 found=1;
2918                 for(j=0; j<p->nb_stream_indexes; j++){
2919                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2920                 }
2921             }
2922         }
2923         if(!found){
2924             fprintf(stderr, "Specified program id not found\n");
2925             exit_program(1);
2926         }
2927         opt_programid=0;
2928     }
2929
2930     /* apply forced codec ids */
2931     for (i = 0; i < ic->nb_streams; i++)
2932         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
2933
2934     /* Set AVCodecContext options for avformat_find_stream_info */
2935     opts = setup_find_stream_info_opts(ic, codec_opts);
2936     orig_nb_streams = ic->nb_streams;
2937
2938     /* If not enough info to get the stream parameters, we decode the
2939        first frames to get it. (used in mpeg case for example) */
2940     ret = avformat_find_stream_info(ic, opts);
2941     if (ret < 0 && verbose >= 0) {
2942         fprintf(stderr, "%s: could not find codec parameters\n", filename);
2943         av_close_input_file(ic);
2944         exit_program(1);
2945     }
2946
2947     timestamp = start_time;
2948     /* add the stream start time */
2949     if (ic->start_time != AV_NOPTS_VALUE)
2950         timestamp += ic->start_time;
2951
2952     /* if seeking requested, we execute it */
2953     if (start_time != 0) {
2954         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2955         if (ret < 0) {
2956             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2957                     filename, (double)timestamp / AV_TIME_BASE);
2958         }
2959         /* reset seek info */
2960         start_time = 0;
2961     }
2962
2963     /* update the current parameters so that they match the one of the input stream */
2964     for(i=0;i<ic->nb_streams;i++) {
2965         AVStream *st = ic->streams[i];
2966         AVCodecContext *dec = st->codec;
2967         InputStream *ist;
2968
2969         dec->thread_count = thread_count;
2970
2971         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2972         ist = &input_streams[nb_input_streams - 1];
2973         ist->st = st;
2974         ist->file_index = nb_input_files;
2975         ist->discard = 1;
2976         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2977
2978         if (i < nb_ts_scale)
2979             ist->ts_scale = ts_scale[i];
2980
2981         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2982
2983         switch (dec->codec_type) {
2984         case AVMEDIA_TYPE_AUDIO:
2985             if(audio_disable)
2986                 st->discard= AVDISCARD_ALL;
2987             break;
2988         case AVMEDIA_TYPE_VIDEO:
2989             rfps      = ic->streams[i]->r_frame_rate.num;
2990             rfps_base = ic->streams[i]->r_frame_rate.den;
2991             if (dec->lowres) {
2992                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2993                 dec->height >>= dec->lowres;
2994                 dec->width  >>= dec->lowres;
2995             }
2996             if(me_threshold)
2997                 dec->debug |= FF_DEBUG_MV;
2998
2999             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3000
3001                 if (verbose >= 0)
3002                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3003                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3004
3005                     (float)rfps / rfps_base, rfps, rfps_base);
3006             }
3007
3008             if(video_disable)
3009                 st->discard= AVDISCARD_ALL;
3010             else if(video_discard)
3011                 st->discard= video_discard;
3012             break;
3013         case AVMEDIA_TYPE_DATA:
3014             break;
3015         case AVMEDIA_TYPE_SUBTITLE:
3016             if(subtitle_disable)
3017                 st->discard = AVDISCARD_ALL;
3018             break;
3019         case AVMEDIA_TYPE_ATTACHMENT:
3020         case AVMEDIA_TYPE_UNKNOWN:
3021             break;
3022         default:
3023             abort();
3024         }
3025     }
3026
3027     /* dump the file content */
3028     if (verbose >= 0)
3029         av_dump_format(ic, nb_input_files, filename, 0);
3030
3031     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3032     input_files[nb_input_files - 1].ctx        = ic;
3033     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3034     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3035
3036     frame_rate    = (AVRational){0, 0};
3037     frame_pix_fmt = PIX_FMT_NONE;
3038     frame_height = 0;
3039     frame_width  = 0;
3040     audio_sample_rate = 0;
3041     audio_channels    = 0;
3042     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3043     av_freep(&ts_scale);
3044     nb_ts_scale = 0;
3045
3046     for (i = 0; i < orig_nb_streams; i++)
3047         av_dict_free(&opts[i]);
3048     av_freep(&opts);
3049     av_dict_free(&codec_names);
3050     uninit_opts();
3051     init_opts();
3052     return 0;
3053 }
3054
3055 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3056                                     AVCodecContext *avctx)
3057 {
3058     char *p;
3059     int n = 1, i;
3060     int64_t t;
3061
3062     for (p = kf; *p; p++)
3063         if (*p == ',')
3064             n++;
3065     ost->forced_kf_count = n;
3066     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3067     if (!ost->forced_kf_pts) {
3068         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3069         exit_program(1);
3070     }
3071     for (i = 0; i < n; i++) {
3072         p = i ? strchr(p, ',') + 1 : kf;
3073         t = parse_time_or_die("force_key_frames", p, 1);
3074         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3075     }
3076 }
3077
3078 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3079 {
3080     OutputStream *ost;
3081     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3082     int idx      = oc->nb_streams - 1;
3083
3084     if (!st) {
3085         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3086         exit_program(1);
3087     }
3088
3089     output_streams_for_file[nb_output_files] =
3090         grow_array(output_streams_for_file[nb_output_files],
3091                    sizeof(*output_streams_for_file[nb_output_files]),
3092                    &nb_output_streams_for_file[nb_output_files],
3093                    oc->nb_streams);
3094     ost = output_streams_for_file[nb_output_files][idx] =
3095         av_mallocz(sizeof(OutputStream));
3096     if (!ost) {
3097         fprintf(stderr, "Could not alloc output stream\n");
3098         exit_program(1);
3099     }
3100     ost->file_index = nb_output_files;
3101     ost->index = idx;
3102     ost->st    = st;
3103     st->codec->codec_type = type;
3104     ost->enc = choose_codec(oc, st, type, codec_names);
3105     if (ost->enc) {
3106         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3107     }
3108
3109     avcodec_get_context_defaults3(st->codec, ost->enc);
3110     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3111
3112     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3113     return ost;
3114 }
3115
3116 static OutputStream *new_video_stream(AVFormatContext *oc)
3117 {
3118     AVStream *st;
3119     OutputStream *ost;
3120     AVCodecContext *video_enc;
3121
3122     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3123     st  = ost->st;
3124     if (!st->stream_copy) {
3125         ost->frame_aspect_ratio = frame_aspect_ratio;
3126         frame_aspect_ratio = 0;
3127 #if CONFIG_AVFILTER
3128         ost->avfilter= vfilters;
3129         vfilters = NULL;
3130 #endif
3131     }
3132
3133     ost->bitstream_filters = video_bitstream_filters;
3134     video_bitstream_filters= NULL;
3135
3136     st->codec->thread_count= thread_count;
3137
3138     video_enc = st->codec;
3139
3140     if(video_codec_tag)
3141         video_enc->codec_tag= video_codec_tag;
3142
3143     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3144         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3145     }
3146
3147     if (st->stream_copy) {
3148         video_enc->sample_aspect_ratio =
3149         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3150     } else {
3151         const char *p;
3152         int i;
3153
3154         if (frame_rate.num)
3155             ost->frame_rate = frame_rate;
3156
3157         video_enc->width = frame_width;
3158         video_enc->height = frame_height;
3159         video_enc->pix_fmt = frame_pix_fmt;
3160         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3161
3162         if (intra_only)
3163             video_enc->gop_size = 0;
3164         if (video_qscale || same_quant) {
3165             video_enc->flags |= CODEC_FLAG_QSCALE;
3166             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3167         }
3168
3169         if(intra_matrix)
3170             video_enc->intra_matrix = intra_matrix;
3171         if(inter_matrix)
3172             video_enc->inter_matrix = inter_matrix;
3173
3174         p= video_rc_override_string;
3175         for(i=0; p; i++){
3176             int start, end, q;
3177             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3178             if(e!=3){
3179                 fprintf(stderr, "error parsing rc_override\n");
3180                 exit_program(1);
3181             }
3182             video_enc->rc_override=
3183                 av_realloc(video_enc->rc_override,
3184                            sizeof(RcOverride)*(i+1));
3185             video_enc->rc_override[i].start_frame= start;
3186             video_enc->rc_override[i].end_frame  = end;
3187             if(q>0){
3188                 video_enc->rc_override[i].qscale= q;
3189                 video_enc->rc_override[i].quality_factor= 1.0;
3190             }
3191             else{
3192                 video_enc->rc_override[i].qscale= 0;
3193                 video_enc->rc_override[i].quality_factor= -q/100.0;
3194             }
3195             p= strchr(p, '/');
3196             if(p) p++;
3197         }
3198         video_enc->rc_override_count=i;
3199         if (!video_enc->rc_initial_buffer_occupancy)
3200             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3201         video_enc->me_threshold= me_threshold;
3202         video_enc->intra_dc_precision= intra_dc_precision - 8;
3203
3204         if (do_psnr)
3205             video_enc->flags|= CODEC_FLAG_PSNR;
3206
3207         /* two pass mode */
3208         if (do_pass) {
3209             if (do_pass == 1) {
3210                 video_enc->flags |= CODEC_FLAG_PASS1;
3211             } else {
3212                 video_enc->flags |= CODEC_FLAG_PASS2;
3213             }
3214         }
3215
3216         if (forced_key_frames)
3217             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3218     }
3219     if (video_language) {
3220         av_dict_set(&st->metadata, "language", video_language, 0);
3221         av_freep(&video_language);
3222     }
3223
3224     /* reset some key parameters */
3225     video_disable = 0;
3226     av_freep(&forced_key_frames);
3227     frame_pix_fmt = PIX_FMT_NONE;
3228     return ost;
3229 }
3230
3231 static OutputStream *new_audio_stream(AVFormatContext *oc)
3232 {
3233     AVStream *st;
3234     OutputStream *ost;
3235     AVCodecContext *audio_enc;
3236
3237     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3238     st  = ost->st;
3239
3240     ost->bitstream_filters = audio_bitstream_filters;
3241     audio_bitstream_filters= NULL;
3242
3243     st->codec->thread_count= thread_count;
3244
3245     audio_enc = st->codec;
3246     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3247
3248     if(audio_codec_tag)
3249         audio_enc->codec_tag= audio_codec_tag;
3250
3251     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3252         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3253     }
3254     if (!st->stream_copy) {
3255         if (audio_qscale > QSCALE_NONE) {
3256             audio_enc->flags |= CODEC_FLAG_QSCALE;
3257             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3258         }
3259         if (audio_channels)
3260             audio_enc->channels = audio_channels;
3261         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3262             audio_enc->sample_fmt = audio_sample_fmt;
3263         if (audio_sample_rate)
3264             audio_enc->sample_rate = audio_sample_rate;
3265     }
3266     if (audio_language) {
3267         av_dict_set(&st->metadata, "language", audio_language, 0);
3268         av_freep(&audio_language);
3269     }
3270
3271     /* reset some key parameters */
3272     audio_disable = 0;
3273
3274     return ost;
3275 }
3276
3277 static OutputStream *new_data_stream(AVFormatContext *oc)
3278 {
3279     AVStream *st;
3280     OutputStream *ost;
3281     AVCodecContext *data_enc;
3282
3283     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3284     st  = ost->st;
3285     data_enc = st->codec;
3286     if (!st->stream_copy) {
3287         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3288         exit_program(1);
3289     }
3290
3291     if (data_codec_tag)
3292         data_enc->codec_tag= data_codec_tag;
3293
3294     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3295         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3296     }
3297
3298     data_disable = 0;
3299     return ost;
3300 }
3301
3302 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3303 {
3304     AVStream *st;
3305     OutputStream *ost;
3306     AVCodecContext *subtitle_enc;
3307
3308     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3309     st  = ost->st;
3310     subtitle_enc = st->codec;
3311
3312     ost->bitstream_filters = subtitle_bitstream_filters;
3313     subtitle_bitstream_filters= NULL;
3314
3315     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3316
3317     if(subtitle_codec_tag)
3318         subtitle_enc->codec_tag= subtitle_codec_tag;
3319
3320     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3321         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3322     }
3323
3324     if (subtitle_language) {
3325         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3326         av_freep(&subtitle_language);
3327     }
3328
3329     subtitle_disable = 0;
3330     return ost;
3331 }
3332
3333 /* arg format is "output-stream-index:streamid-value". */
3334 static int opt_streamid(const char *opt, const char *arg)
3335 {
3336     int idx;
3337     char *p;
3338     char idx_str[16];
3339
3340     av_strlcpy(idx_str, arg, sizeof(idx_str));
3341     p = strchr(idx_str, ':');
3342     if (!p) {
3343         fprintf(stderr,
3344                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3345                 arg, opt);
3346         exit_program(1);
3347     }
3348     *p++ = '\0';
3349     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3350     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3351     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3352     return 0;
3353 }
3354
3355 static int copy_chapters(int infile, int outfile)
3356 {
3357     AVFormatContext *is = input_files[infile].ctx;
3358     AVFormatContext *os = output_files[outfile];
3359     int i;
3360
3361     for (i = 0; i < is->nb_chapters; i++) {
3362         AVChapter *in_ch = is->chapters[i], *out_ch;
3363         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3364                                       AV_TIME_BASE_Q, in_ch->time_base);
3365         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3366                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3367
3368
3369         if (in_ch->end < ts_off)
3370             continue;
3371         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3372             break;
3373
3374         out_ch = av_mallocz(sizeof(AVChapter));
3375         if (!out_ch)
3376             return AVERROR(ENOMEM);
3377
3378         out_ch->id        = in_ch->id;
3379         out_ch->time_base = in_ch->time_base;
3380         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3381         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3382
3383         if (metadata_chapters_autocopy)
3384             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3385
3386         os->nb_chapters++;
3387         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3388         if (!os->chapters)
3389             return AVERROR(ENOMEM);
3390         os->chapters[os->nb_chapters - 1] = out_ch;
3391     }
3392     return 0;
3393 }
3394
3395 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3396 {
3397     int i, err;
3398     AVFormatContext *ic = NULL;
3399
3400     err = avformat_open_input(&ic, filename, NULL, NULL);
3401     if (err < 0)
3402         return err;
3403     /* copy stream format */
3404     for(i=0;i<ic->nb_streams;i++) {
3405         AVStream *st;
3406         OutputStream *ost;
3407         AVCodec *codec;
3408
3409         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3410         ost   = new_output_stream(s, codec->type);
3411         st    = ost->st;
3412
3413         // FIXME: a more elegant solution is needed
3414         memcpy(st, ic->streams[i], sizeof(AVStream));
3415         st->info = NULL;
3416         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3417
3418         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3419             choose_sample_fmt(st, codec);
3420         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3421             choose_pixel_fmt(st, codec);
3422     }
3423
3424     av_close_input_file(ic);
3425     return 0;
3426 }
3427
3428 static void opt_output_file(const char *filename)
3429 {
3430     AVFormatContext *oc;
3431     int i, err;
3432     AVOutputFormat *file_oformat;
3433     OutputStream *ost;
3434     InputStream  *ist;
3435
3436     if (!strcmp(filename, "-"))
3437         filename = "pipe:";
3438
3439     oc = avformat_alloc_context();
3440     if (!oc) {
3441         print_error(filename, AVERROR(ENOMEM));
3442         exit_program(1);
3443     }
3444
3445     if (last_asked_format) {
3446         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3447         if (!file_oformat) {
3448             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3449             exit_program(1);
3450         }
3451         last_asked_format = NULL;
3452     } else {
3453         file_oformat = av_guess_format(NULL, filename, NULL);
3454         if (!file_oformat) {
3455             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3456                     filename);
3457             exit_program(1);
3458         }
3459     }
3460
3461     oc->oformat = file_oformat;
3462     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3463
3464     if (!strcmp(file_oformat->name, "ffm") &&
3465         av_strstart(filename, "http:", NULL)) {
3466         /* special case for files sent to avserver: we get the stream
3467            parameters from avserver */
3468         int err = read_avserver_streams(oc, filename);
3469         if (err < 0) {
3470             print_error(filename, err);
3471             exit_program(1);
3472         }
3473     } else if (!nb_stream_maps) {
3474         /* pick the "best" stream of each type */
3475 #define NEW_STREAM(type, index)\
3476         if (index >= 0) {\
3477             ost = new_ ## type ## _stream(oc);\
3478             ost->source_index = index;\
3479             ost->sync_ist     = &input_streams[index];\
3480             input_streams[index].discard = 0;\
3481         }
3482
3483         /* video: highest resolution */
3484         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3485             int area = 0, idx = -1;
3486             for (i = 0; i < nb_input_streams; i++) {
3487                 ist = &input_streams[i];
3488                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3489                     ist->st->codec->width * ist->st->codec->height > area) {
3490                     area = ist->st->codec->width * ist->st->codec->height;
3491                     idx = i;
3492                 }
3493             }
3494             NEW_STREAM(video, idx);
3495         }
3496
3497         /* audio: most channels */
3498         if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3499             int channels = 0, idx = -1;
3500             for (i = 0; i < nb_input_streams; i++) {
3501                 ist = &input_streams[i];
3502                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3503                     ist->st->codec->channels > channels) {
3504                     channels = ist->st->codec->channels;
3505                     idx = i;
3506                 }
3507             }
3508             NEW_STREAM(audio, idx);
3509         }
3510
3511         /* subtitles: pick first */
3512         if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3513             for (i = 0; i < nb_input_streams; i++)
3514                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3515                     NEW_STREAM(subtitle, i);
3516                     break;
3517                 }
3518         }
3519         /* do something with data? */
3520     } else {
3521         for (i = 0; i < nb_stream_maps; i++) {
3522             StreamMap *map = &stream_maps[i];
3523
3524             if (map->disabled)
3525                 continue;
3526
3527             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3528             switch (ist->st->codec->codec_type) {
3529             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(oc);    break;
3530             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(oc);    break;
3531             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3532             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(oc);     break;
3533             default:
3534                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3535                        map->file_index, map->stream_index);
3536                 exit_program(1);
3537             }
3538
3539             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3540             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3541                                            map->sync_stream_index];
3542             ist->discard = 0;
3543         }
3544     }
3545
3546     av_dict_copy(&oc->metadata, metadata, 0);
3547     av_dict_free(&metadata);
3548
3549     av_dict_copy(&output_opts[nb_output_files], format_opts, 0);
3550     output_files[nb_output_files++] = oc;
3551
3552     /* check filename in case of an image number is expected */
3553     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3554         if (!av_filename_number_test(oc->filename)) {
3555             print_error(oc->filename, AVERROR(EINVAL));
3556             exit_program(1);
3557         }
3558     }
3559
3560     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3561         /* test if it already exists to avoid loosing precious files */
3562         if (!file_overwrite &&
3563             (strchr(filename, ':') == NULL ||
3564              filename[1] == ':' ||
3565              av_strstart(filename, "file:", NULL))) {
3566             if (avio_check(filename, 0) == 0) {
3567                 if (!using_stdin) {
3568                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3569                     fflush(stderr);
3570                     if (!read_yesno()) {
3571                         fprintf(stderr, "Not overwriting - exiting\n");
3572                         exit_program(1);
3573                     }
3574                 }
3575                 else {
3576                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3577                     exit_program(1);
3578                 }
3579             }
3580         }
3581
3582         /* open the file */
3583         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3584             print_error(filename, err);
3585             exit_program(1);
3586         }
3587     }
3588
3589     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3590     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3591     oc->flags |= AVFMT_FLAG_NONBLOCK;
3592
3593     /* copy chapters */
3594     if (chapters_input_file >= nb_input_files) {
3595         if (chapters_input_file == INT_MAX) {
3596             /* copy chapters from the first input file that has them*/
3597             chapters_input_file = -1;
3598             for (i = 0; i < nb_input_files; i++)
3599                 if (input_files[i].ctx->nb_chapters) {
3600                     chapters_input_file = i;
3601                     break;
3602                 }
3603         } else {
3604             av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3605                    chapters_input_file);
3606             exit_program(1);
3607         }
3608     }
3609     if (chapters_input_file >= 0)
3610         copy_chapters(chapters_input_file, nb_output_files - 1);
3611
3612     /* copy metadata */
3613     for (i = 0; i < nb_meta_data_maps; i++) {
3614         AVFormatContext *files[2];
3615         AVDictionary    **meta[2];
3616         int j;
3617
3618 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3619         if ((index) < 0 || (index) >= (nb_elems)) {\
3620             av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3621                      (desc), (index));\
3622             exit_program(1);\
3623         }
3624
3625         int in_file_index = meta_data_maps[i][1].file;
3626         if (in_file_index < 0)
3627             continue;
3628         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3629
3630         files[0] = oc;
3631         files[1] = input_files[in_file_index].ctx;
3632
3633         for (j = 0; j < 2; j++) {
3634             MetadataMap *map = &meta_data_maps[i][j];
3635
3636             switch (map->type) {
3637             case 'g':
3638                 meta[j] = &files[j]->metadata;
3639                 break;
3640             case 's':
3641                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3642                 meta[j] = &files[j]->streams[map->index]->metadata;
3643                 break;
3644             case 'c':
3645                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3646                 meta[j] = &files[j]->chapters[map->index]->metadata;
3647                 break;
3648             case 'p':
3649                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3650                 meta[j] = &files[j]->programs[map->index]->metadata;
3651                 break;
3652             }
3653         }
3654
3655         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3656     }
3657