ffmpeg: factor common code from new_a/v/s/d_stream to new_output_stream()
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
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[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int file_index;
83     int stream_index;
84     int sync_file_index;
85     int sync_stream_index;
86 } StreamMap;
87
88 /**
89  * select an input file for an output file
90  */
91 typedef struct MetadataMap {
92     int  file;      //< file index
93     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94     int  index;     //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98     int in_file;
99     int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
106
107 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
108
109 static const char *last_asked_format = NULL;
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static int nb_input_files_ts_scale[MAX_FILES] = {0};
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVDictionary *output_opts[MAX_FILES];
115 static int nb_output_files = 0;
116
117 static StreamMap *stream_maps = NULL;
118 static int nb_stream_maps;
119
120 /* first item specifies output metadata, second is input */
121 static MetadataMap (*meta_data_maps)[2] = NULL;
122 static int nb_meta_data_maps;
123 static int metadata_global_autocopy   = 1;
124 static int metadata_streams_autocopy  = 1;
125 static int metadata_chapters_autocopy = 1;
126
127 static ChapterMap *chapter_maps = NULL;
128 static int nb_chapter_maps;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width  = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
139 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
140 static AVRational frame_rate;
141 static float video_qscale = 0;
142 static uint16_t *intra_matrix = NULL;
143 static uint16_t *inter_matrix = NULL;
144 static const char *video_rc_override_string=NULL;
145 static int video_disable = 0;
146 static int video_discard = 0;
147 static char *video_codec_name = NULL;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quality = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int loop_input = 0;
156 static int loop_output = AVFMT_NOOUTPUTLOOP;
157 static int qp_hist = 0;
158 #if CONFIG_AVFILTER
159 static char *vfilters = NULL;
160 #endif
161
162 static int intra_only = 0;
163 static int audio_sample_rate = 0;
164 static int64_t channel_layout = 0;
165 #define QSCALE_NONE -99999
166 static float audio_qscale = QSCALE_NONE;
167 static int audio_disable = 0;
168 static int audio_channels = 0;
169 static char  *audio_codec_name = NULL;
170 static unsigned int audio_codec_tag = 0;
171 static char *audio_language = NULL;
172
173 static int subtitle_disable = 0;
174 static char *subtitle_codec_name = NULL;
175 static char *subtitle_language = NULL;
176 static unsigned int subtitle_codec_tag = 0;
177
178 static int data_disable = 0;
179 static char *data_codec_name = NULL;
180 static unsigned int data_codec_tag = 0;
181
182 static float mux_preload= 0.5;
183 static float mux_max_delay= 0.7;
184
185 static int64_t recording_time = INT64_MAX;
186 static int64_t start_time = 0;
187 static int64_t recording_timestamp = 0;
188 static int64_t input_ts_offset = 0;
189 static int file_overwrite = 0;
190 static AVDictionary *metadata;
191 static int do_benchmark = 0;
192 static int do_hex_dump = 0;
193 static int do_pkt_dump = 0;
194 static int do_psnr = 0;
195 static int do_pass = 0;
196 static char *pass_logfilename_prefix = NULL;
197 static int audio_stream_copy = 0;
198 static int video_stream_copy = 0;
199 static int subtitle_stream_copy = 0;
200 static int data_stream_copy = 0;
201 static int video_sync_method= -1;
202 static int audio_sync_method= 0;
203 static float audio_drift_threshold= 0.1;
204 static int copy_ts= 0;
205 static int copy_tb;
206 static int opt_shortest = 0;
207 static char *vstats_filename;
208 static FILE *vstats_file;
209 static int opt_programid = 0;
210 static int copy_initial_nonkeyframes = 0;
211
212 static int rate_emu = 0;
213
214 static int audio_volume = 256;
215
216 static int exit_on_error = 0;
217 static int using_stdin = 0;
218 static int verbose = 1;
219 static int thread_count= 1;
220 static int64_t video_size = 0;
221 static int64_t audio_size = 0;
222 static int64_t extra_size = 0;
223 static int nb_frames_dup = 0;
224 static int nb_frames_drop = 0;
225 static int input_sync;
226 static uint64_t limit_filesize = 0;
227 static int force_fps = 0;
228 static char *forced_key_frames = NULL;
229
230 static float dts_delta_threshold = 10;
231
232 static int64_t timer_start;
233
234 static uint8_t *audio_buf;
235 static uint8_t *audio_out;
236 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
237
238 static short *samples;
239
240 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
241 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
242 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
243
244 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
245
246 struct InputStream;
247
248 typedef struct OutputStream {
249     int file_index;          /* file index */
250     int index;               /* stream index in the output file */
251     int source_index;        /* InputStream index */
252     AVStream *st;            /* stream in the output file */
253     int encoding_needed;     /* true if encoding needed for this stream */
254     int frame_number;
255     /* input pts and corresponding output pts
256        for A/V sync */
257     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
258     struct InputStream *sync_ist; /* input stream to sync against */
259     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
260     AVBitStreamFilterContext *bitstream_filters;
261     AVCodec *enc;
262
263     /* video only */
264     int video_resample;
265     AVFrame pict_tmp;      /* temporary image for resampling */
266     struct SwsContext *img_resample_ctx; /* for image resampling */
267     int resample_height;
268     int resample_width;
269     int resample_pix_fmt;
270     AVRational frame_rate;
271
272     float frame_aspect_ratio;
273
274     /* forced key frames */
275     int64_t *forced_kf_pts;
276     int forced_kf_count;
277     int forced_kf_index;
278
279     /* audio only */
280     int audio_resample;
281     ReSampleContext *resample; /* for audio resampling */
282     int resample_sample_fmt;
283     int resample_channels;
284     int resample_sample_rate;
285     int reformat_pair;
286     AVAudioConvert *reformat_ctx;
287     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
288     FILE *logfile;
289
290 #if CONFIG_AVFILTER
291     AVFilterContext *output_video_filter;
292     AVFilterContext *input_video_filter;
293     AVFilterBufferRef *picref;
294     char *avfilter;
295     AVFilterGraph *graph;
296 #endif
297
298    int sws_flags;
299 } OutputStream;
300
301 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
302 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
303
304 typedef struct InputStream {
305     int file_index;
306     AVStream *st;
307     int discard;             /* true if stream data should be discarded */
308     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
309     AVCodec *dec;
310
311     int64_t       start;     /* time when read started */
312     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
313                                 is not defined */
314     int64_t       pts;       /* current pts */
315     PtsCorrectionContext pts_ctx;
316     int is_start;            /* is 1 at the start and after a discontinuity */
317     int showed_multi_packet_warning;
318     int is_past_recording_time;
319 } InputStream;
320
321 typedef struct InputFile {
322     AVFormatContext *ctx;
323     int eof_reached;      /* true if eof reached */
324     int ist_index;        /* index of first stream in ist_table */
325     int buffer_size;      /* current total buffer size */
326     int64_t ts_offset;
327 } InputFile;
328
329 static InputStream *input_streams = NULL;
330 static int         nb_input_streams = 0;
331 static InputFile   *input_files   = NULL;
332 static int         nb_input_files   = 0;
333
334 #if CONFIG_AVFILTER
335
336 static int configure_video_filters(InputStream *ist, OutputStream *ost)
337 {
338     AVFilterContext *last_filter, *filter;
339     /** filter graph containing all filters including input & output */
340     AVCodecContext *codec = ost->st->codec;
341     AVCodecContext *icodec = ist->st->codec;
342     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
343     AVRational sample_aspect_ratio;
344     char args[255];
345     int ret;
346
347     ost->graph = avfilter_graph_alloc();
348
349     if (ist->st->sample_aspect_ratio.num){
350         sample_aspect_ratio = ist->st->sample_aspect_ratio;
351     }else
352         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
353
354     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
355              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
356              sample_aspect_ratio.num, sample_aspect_ratio.den);
357
358     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
359                                        "src", args, NULL, ost->graph);
360     if (ret < 0)
361         return ret;
362     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
363                                        "out", NULL, &ffsink_ctx, ost->graph);
364     if (ret < 0)
365         return ret;
366     last_filter = ost->input_video_filter;
367
368     if (codec->width  != icodec->width || codec->height != icodec->height) {
369         snprintf(args, 255, "%d:%d:flags=0x%X",
370                  codec->width,
371                  codec->height,
372                  ost->sws_flags);
373         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
374                                                 NULL, args, NULL, ost->graph)) < 0)
375             return ret;
376         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
377             return ret;
378         last_filter = filter;
379     }
380
381     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
382     ost->graph->scale_sws_opts = av_strdup(args);
383
384     if (ost->avfilter) {
385         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
386         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
387
388         outputs->name    = av_strdup("in");
389         outputs->filter_ctx = last_filter;
390         outputs->pad_idx = 0;
391         outputs->next    = NULL;
392
393         inputs->name    = av_strdup("out");
394         inputs->filter_ctx = ost->output_video_filter;
395         inputs->pad_idx = 0;
396         inputs->next    = NULL;
397
398         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
399             return ret;
400         av_freep(&ost->avfilter);
401     } else {
402         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
403             return ret;
404     }
405
406     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
407         return ret;
408
409     codec->width  = ost->output_video_filter->inputs[0]->w;
410     codec->height = ost->output_video_filter->inputs[0]->h;
411     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
412         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
413         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
414         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
415
416     return 0;
417 }
418 #endif /* CONFIG_AVFILTER */
419
420 static void term_exit(void)
421 {
422     av_log(NULL, AV_LOG_QUIET, "");
423 }
424
425 static volatile int received_sigterm = 0;
426 static volatile int received_nb_signals = 0;
427
428 static void
429 sigterm_handler(int sig)
430 {
431     received_sigterm = sig;
432     received_nb_signals++;
433     term_exit();
434 }
435
436 static void term_init(void)
437 {
438     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
439     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
440 #ifdef SIGXCPU
441     signal(SIGXCPU, sigterm_handler);
442 #endif
443 }
444
445 static int decode_interrupt_cb(void)
446 {
447     return received_nb_signals > 1;
448 }
449
450 static int ffmpeg_exit(int ret)
451 {
452     int i;
453
454     /* close files */
455     for(i=0;i<nb_output_files;i++) {
456         AVFormatContext *s = output_files[i];
457         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
458             avio_close(s->pb);
459         avformat_free_context(s);
460         av_free(output_streams_for_file[i]);
461         av_dict_free(&output_opts[i]);
462     }
463     for(i=0;i<nb_input_files;i++) {
464         av_close_input_file(input_files[i].ctx);
465         av_free(input_files_ts_scale[i]);
466     }
467
468     av_free(intra_matrix);
469     av_free(inter_matrix);
470
471     if (vstats_file)
472         fclose(vstats_file);
473     av_free(vstats_filename);
474
475     av_free(streamid_map);
476     av_free(stream_maps);
477     av_free(meta_data_maps);
478
479     av_freep(&input_streams);
480     av_freep(&input_files);
481
482     av_free(video_codec_name);
483     av_free(audio_codec_name);
484     av_free(subtitle_codec_name);
485     av_free(data_codec_name);
486
487     uninit_opts();
488     av_free(audio_buf);
489     av_free(audio_out);
490     allocated_audio_buf_size= allocated_audio_out_size= 0;
491     av_free(samples);
492
493 #if CONFIG_AVFILTER
494     avfilter_uninit();
495 #endif
496
497     if (received_sigterm) {
498         fprintf(stderr,
499             "Received signal %d: terminating.\n",
500             (int) received_sigterm);
501         exit (255);
502     }
503
504     exit(ret); /* not all OS-es handle main() return value */
505     return ret;
506 }
507
508 static void assert_avoptions(AVDictionary *m)
509 {
510     AVDictionaryEntry *t;
511     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
512         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
513         ffmpeg_exit(1);
514     }
515 }
516
517 /* similar to ff_dynarray_add() and av_fast_realloc() */
518 static void *grow_array(void *array, int elem_size, int *size, int new_size)
519 {
520     if (new_size >= INT_MAX / elem_size) {
521         fprintf(stderr, "Array too big.\n");
522         ffmpeg_exit(1);
523     }
524     if (*size < new_size) {
525         uint8_t *tmp = av_realloc(array, new_size*elem_size);
526         if (!tmp) {
527             fprintf(stderr, "Could not alloc buffer.\n");
528             ffmpeg_exit(1);
529         }
530         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
531         *size = new_size;
532         return tmp;
533     }
534     return array;
535 }
536
537 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
538 {
539     if(codec && codec->sample_fmts){
540         const enum AVSampleFormat *p= codec->sample_fmts;
541         for(; *p!=-1; p++){
542             if(*p == st->codec->sample_fmt)
543                 break;
544         }
545         if (*p == -1) {
546             av_log(NULL, AV_LOG_WARNING,
547                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
548                    av_get_sample_fmt_name(st->codec->sample_fmt),
549                    codec->name,
550                    av_get_sample_fmt_name(codec->sample_fmts[0]));
551             st->codec->sample_fmt = codec->sample_fmts[0];
552         }
553     }
554 }
555
556 /**
557  * Update the requested input sample format based on the output sample format.
558  * This is currently only used to request float output from decoders which
559  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
560  * Ideally this will be removed in the future when decoders do not do format
561  * conversion and only output in their native format.
562  */
563 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
564                               AVCodecContext *enc)
565 {
566     /* if sample formats match or a decoder sample format has already been
567        requested, just return */
568     if (enc->sample_fmt == dec->sample_fmt ||
569         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
570         return;
571
572     /* if decoder supports more than one output format */
573     if (dec_codec && dec_codec->sample_fmts &&
574         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
575         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
576         const enum AVSampleFormat *p;
577         int min_dec = -1, min_inc = -1;
578
579         /* find a matching sample format in the encoder */
580         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
581             if (*p == enc->sample_fmt) {
582                 dec->request_sample_fmt = *p;
583                 return;
584             } else if (*p > enc->sample_fmt) {
585                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
586             } else
587                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
588         }
589
590         /* if none match, provide the one that matches quality closest */
591         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
592                                   enc->sample_fmt - min_dec;
593     }
594 }
595
596 static void choose_sample_rate(AVStream *st, AVCodec *codec)
597 {
598     if(codec && codec->supported_samplerates){
599         const int *p= codec->supported_samplerates;
600         int best=0;
601         int best_dist=INT_MAX;
602         for(; *p; p++){
603             int dist= abs(st->codec->sample_rate - *p);
604             if(dist < best_dist){
605                 best_dist= dist;
606                 best= *p;
607             }
608         }
609         if(best_dist){
610             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
611         }
612         st->codec->sample_rate= best;
613     }
614 }
615
616 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
617 {
618     if(codec && codec->pix_fmts){
619         const enum PixelFormat *p= codec->pix_fmts;
620         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
621             if(st->codec->codec_id==CODEC_ID_MJPEG){
622                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
623             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
624                 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};
625             }
626         }
627         for(; *p!=-1; p++){
628             if(*p == st->codec->pix_fmt)
629                 break;
630         }
631         if (*p == -1) {
632             if(st->codec->pix_fmt != PIX_FMT_NONE)
633                 av_log(NULL, AV_LOG_WARNING,
634                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
635                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
636                         codec->name,
637                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
638             st->codec->pix_fmt = codec->pix_fmts[0];
639         }
640     }
641 }
642
643 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
644 {
645     OutputStream *ost;
646     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
647     int idx      = oc->nb_streams - 1;
648
649     if (!st) {
650         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
651         ffmpeg_exit(1);
652     }
653
654     output_streams_for_file[file_idx] =
655         grow_array(output_streams_for_file[file_idx],
656                    sizeof(*output_streams_for_file[file_idx]),
657                    &nb_output_streams_for_file[file_idx],
658                    oc->nb_streams);
659     ost = output_streams_for_file[file_idx][idx] =
660         av_mallocz(sizeof(OutputStream));
661     if (!ost) {
662         fprintf(stderr, "Could not alloc output stream\n");
663         ffmpeg_exit(1);
664     }
665     ost->file_index = file_idx;
666     ost->index = idx;
667     ost->st    = st;
668     ost->enc   = codec;
669
670     avcodec_get_context_defaults3(st->codec, codec);
671
672     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
673     return ost;
674 }
675
676 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
677 {
678     int i, err;
679     AVFormatContext *ic = NULL;
680     int nopts = 0;
681
682     err = avformat_open_input(&ic, filename, NULL, NULL);
683     if (err < 0)
684         return err;
685     /* copy stream format */
686     for(i=0;i<ic->nb_streams;i++) {
687         AVStream *st;
688         OutputStream *ost;
689         AVCodec *codec;
690
691         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
692         ost   = new_output_stream(s, nb_output_files, codec);
693         st    = ost->st;
694
695         // FIXME: a more elegant solution is needed
696         memcpy(st, ic->streams[i], sizeof(AVStream));
697         st->info = NULL;
698         avcodec_copy_context(st->codec, ic->streams[i]->codec);
699
700         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
701             if (audio_stream_copy) {
702                 st->stream_copy = 1;
703             } else
704                 choose_sample_fmt(st, codec);
705         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
706             if (video_stream_copy) {
707                 st->stream_copy = 1;
708             } else
709                 choose_pixel_fmt(st, codec);
710         }
711
712         if(st->codec->flags & CODEC_FLAG_BITEXACT)
713             nopts = 1;
714     }
715
716     if (!nopts)
717         s->timestamp = av_gettime();
718
719     av_close_input_file(ic);
720     return 0;
721 }
722
723 static double
724 get_sync_ipts(const OutputStream *ost)
725 {
726     const InputStream *ist = ost->sync_ist;
727     return (double)(ist->pts - start_time)/AV_TIME_BASE;
728 }
729
730 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
731     int ret;
732
733     while(bsfc){
734         AVPacket new_pkt= *pkt;
735         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
736                                           &new_pkt.data, &new_pkt.size,
737                                           pkt->data, pkt->size,
738                                           pkt->flags & AV_PKT_FLAG_KEY);
739         if(a>0){
740             av_free_packet(pkt);
741             new_pkt.destruct= av_destruct_packet;
742         } else if(a<0){
743             fprintf(stderr, "%s failed for stream %d, codec %s",
744                     bsfc->filter->name, pkt->stream_index,
745                     avctx->codec ? avctx->codec->name : "copy");
746             print_error("", a);
747             if (exit_on_error)
748                 ffmpeg_exit(1);
749         }
750         *pkt= new_pkt;
751
752         bsfc= bsfc->next;
753     }
754
755     ret= av_interleaved_write_frame(s, pkt);
756     if(ret < 0){
757         print_error("av_interleaved_write_frame()", ret);
758         ffmpeg_exit(1);
759     }
760 }
761
762 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
763
764 static void do_audio_out(AVFormatContext *s,
765                          OutputStream *ost,
766                          InputStream *ist,
767                          unsigned char *buf, int size)
768 {
769     uint8_t *buftmp;
770     int64_t audio_out_size, audio_buf_size;
771     int64_t allocated_for_size= size;
772
773     int size_out, frame_bytes, ret, resample_changed;
774     AVCodecContext *enc= ost->st->codec;
775     AVCodecContext *dec= ist->st->codec;
776     int osize = av_get_bytes_per_sample(enc->sample_fmt);
777     int isize = av_get_bytes_per_sample(dec->sample_fmt);
778     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
779
780 need_realloc:
781     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
782     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
783     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
784     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
785     audio_buf_size*= osize*enc->channels;
786
787     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
788     if(coded_bps > 8*osize)
789         audio_out_size= audio_out_size * coded_bps / (8*osize);
790     audio_out_size += FF_MIN_BUFFER_SIZE;
791
792     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
793         fprintf(stderr, "Buffer sizes too large\n");
794         ffmpeg_exit(1);
795     }
796
797     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
798     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
799     if (!audio_buf || !audio_out){
800         fprintf(stderr, "Out of memory in do_audio_out\n");
801         ffmpeg_exit(1);
802     }
803
804     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
805         ost->audio_resample = 1;
806
807     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
808                        ost->resample_channels    != dec->channels   ||
809                        ost->resample_sample_rate != dec->sample_rate;
810
811     if ((ost->audio_resample && !ost->resample) || resample_changed) {
812         if (resample_changed) {
813             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",
814                    ist->file_index, ist->st->index,
815                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
816                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
817             ost->resample_sample_fmt  = dec->sample_fmt;
818             ost->resample_channels    = dec->channels;
819             ost->resample_sample_rate = dec->sample_rate;
820             if (ost->resample)
821                 audio_resample_close(ost->resample);
822         }
823         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
824         if (audio_sync_method <= 1 &&
825             ost->resample_sample_fmt  == enc->sample_fmt &&
826             ost->resample_channels    == enc->channels   &&
827             ost->resample_sample_rate == enc->sample_rate) {
828             ost->resample = NULL;
829             ost->audio_resample = 0;
830         } else if (ost->audio_resample) {
831             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
832                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
833             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
834                                                    enc->sample_rate, dec->sample_rate,
835                                                    enc->sample_fmt,  dec->sample_fmt,
836                                                    16, 10, 0, 0.8);
837             if (!ost->resample) {
838                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
839                         dec->channels, dec->sample_rate,
840                         enc->channels, enc->sample_rate);
841                 ffmpeg_exit(1);
842             }
843         }
844     }
845
846 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
847     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
848         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
849         if (ost->reformat_ctx)
850             av_audio_convert_free(ost->reformat_ctx);
851         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
852                                                    dec->sample_fmt, 1, NULL, 0);
853         if (!ost->reformat_ctx) {
854             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
855                 av_get_sample_fmt_name(dec->sample_fmt),
856                 av_get_sample_fmt_name(enc->sample_fmt));
857             ffmpeg_exit(1);
858         }
859         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
860     }
861
862     if(audio_sync_method){
863         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
864                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
865         double idelta= delta*dec->sample_rate / enc->sample_rate;
866         int byte_delta= ((int)idelta)*2*dec->channels;
867
868         //FIXME resample delay
869         if(fabs(delta) > 50){
870             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
871                 if(byte_delta < 0){
872                     byte_delta= FFMAX(byte_delta, -size);
873                     size += byte_delta;
874                     buf  -= byte_delta;
875                     if(verbose > 2)
876                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
877                     if(!size)
878                         return;
879                     ist->is_start=0;
880                 }else{
881                     static uint8_t *input_tmp= NULL;
882                     input_tmp= av_realloc(input_tmp, byte_delta + size);
883
884                     if(byte_delta > allocated_for_size - size){
885                         allocated_for_size= byte_delta + (int64_t)size;
886                         goto need_realloc;
887                     }
888                     ist->is_start=0;
889
890                     memset(input_tmp, 0, byte_delta);
891                     memcpy(input_tmp + byte_delta, buf, size);
892                     buf= input_tmp;
893                     size += byte_delta;
894                     if(verbose > 2)
895                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
896                 }
897             }else if(audio_sync_method>1){
898                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
899                 av_assert0(ost->audio_resample);
900                 if(verbose > 2)
901                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
902 //                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));
903                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
904             }
905         }
906     }else
907         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
908                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
909
910     if (ost->audio_resample) {
911         buftmp = audio_buf;
912         size_out = audio_resample(ost->resample,
913                                   (short *)buftmp, (short *)buf,
914                                   size / (dec->channels * isize));
915         size_out = size_out * enc->channels * osize;
916     } else {
917         buftmp = buf;
918         size_out = size;
919     }
920
921     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
922         const void *ibuf[6]= {buftmp};
923         void *obuf[6]= {audio_buf};
924         int istride[6]= {isize};
925         int ostride[6]= {osize};
926         int len= size_out/istride[0];
927         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
928             printf("av_audio_convert() failed\n");
929             if (exit_on_error)
930                 ffmpeg_exit(1);
931             return;
932         }
933         buftmp = audio_buf;
934         size_out = len*osize;
935     }
936
937     /* now encode as many frames as possible */
938     if (enc->frame_size > 1) {
939         /* output resampled raw samples */
940         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
941             fprintf(stderr, "av_fifo_realloc2() failed\n");
942             ffmpeg_exit(1);
943         }
944         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
945
946         frame_bytes = enc->frame_size * osize * enc->channels;
947
948         while (av_fifo_size(ost->fifo) >= frame_bytes) {
949             AVPacket pkt;
950             av_init_packet(&pkt);
951
952             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
953
954             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
955
956             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
957                                        (short *)audio_buf);
958             if (ret < 0) {
959                 fprintf(stderr, "Audio encoding failed\n");
960                 ffmpeg_exit(1);
961             }
962             audio_size += ret;
963             pkt.stream_index= ost->index;
964             pkt.data= audio_out;
965             pkt.size= ret;
966             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
967                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
968             pkt.flags |= AV_PKT_FLAG_KEY;
969             write_frame(s, &pkt, enc, ost->bitstream_filters);
970
971             ost->sync_opts += enc->frame_size;
972         }
973     } else {
974         AVPacket pkt;
975         av_init_packet(&pkt);
976
977         ost->sync_opts += size_out / (osize * enc->channels);
978
979         /* output a pcm frame */
980         /* determine the size of the coded buffer */
981         size_out /= osize;
982         if (coded_bps)
983             size_out = size_out*coded_bps/8;
984
985         if(size_out > audio_out_size){
986             fprintf(stderr, "Internal error, buffer size too small\n");
987             ffmpeg_exit(1);
988         }
989
990         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
991         ret = avcodec_encode_audio(enc, audio_out, size_out,
992                                    (short *)buftmp);
993         if (ret < 0) {
994             fprintf(stderr, "Audio encoding failed\n");
995             ffmpeg_exit(1);
996         }
997         audio_size += ret;
998         pkt.stream_index= ost->index;
999         pkt.data= audio_out;
1000         pkt.size= ret;
1001         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1002             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1003         pkt.flags |= AV_PKT_FLAG_KEY;
1004         write_frame(s, &pkt, enc, ost->bitstream_filters);
1005     }
1006 }
1007
1008 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1009 {
1010     AVCodecContext *dec;
1011     AVPicture *picture2;
1012     AVPicture picture_tmp;
1013     uint8_t *buf = 0;
1014
1015     dec = ist->st->codec;
1016
1017     /* deinterlace : must be done before any resize */
1018     if (do_deinterlace) {
1019         int size;
1020
1021         /* create temporary picture */
1022         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1023         buf = av_malloc(size);
1024         if (!buf)
1025             return;
1026
1027         picture2 = &picture_tmp;
1028         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1029
1030         if(avpicture_deinterlace(picture2, picture,
1031                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1032             /* if error, do not deinterlace */
1033             fprintf(stderr, "Deinterlacing failed\n");
1034             av_free(buf);
1035             buf = NULL;
1036             picture2 = picture;
1037         }
1038     } else {
1039         picture2 = picture;
1040     }
1041
1042     if (picture != picture2)
1043         *picture = *picture2;
1044     *bufp = buf;
1045 }
1046
1047 /* we begin to correct av delay at this threshold */
1048 #define AV_DELAY_MAX 0.100
1049
1050 static void do_subtitle_out(AVFormatContext *s,
1051                             OutputStream *ost,
1052                             InputStream *ist,
1053                             AVSubtitle *sub,
1054                             int64_t pts)
1055 {
1056     static uint8_t *subtitle_out = NULL;
1057     int subtitle_out_max_size = 1024 * 1024;
1058     int subtitle_out_size, nb, i;
1059     AVCodecContext *enc;
1060     AVPacket pkt;
1061
1062     if (pts == AV_NOPTS_VALUE) {
1063         fprintf(stderr, "Subtitle packets must have a pts\n");
1064         if (exit_on_error)
1065             ffmpeg_exit(1);
1066         return;
1067     }
1068
1069     enc = ost->st->codec;
1070
1071     if (!subtitle_out) {
1072         subtitle_out = av_malloc(subtitle_out_max_size);
1073     }
1074
1075     /* Note: DVB subtitle need one packet to draw them and one other
1076        packet to clear them */
1077     /* XXX: signal it in the codec context ? */
1078     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1079         nb = 2;
1080     else
1081         nb = 1;
1082
1083     for(i = 0; i < nb; i++) {
1084         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1085         // start_display_time is required to be 0
1086         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1087         sub->end_display_time -= sub->start_display_time;
1088         sub->start_display_time = 0;
1089         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1090                                                     subtitle_out_max_size, sub);
1091         if (subtitle_out_size < 0) {
1092             fprintf(stderr, "Subtitle encoding failed\n");
1093             ffmpeg_exit(1);
1094         }
1095
1096         av_init_packet(&pkt);
1097         pkt.stream_index = ost->index;
1098         pkt.data = subtitle_out;
1099         pkt.size = subtitle_out_size;
1100         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1101         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1102             /* XXX: the pts correction is handled here. Maybe handling
1103                it in the codec would be better */
1104             if (i == 0)
1105                 pkt.pts += 90 * sub->start_display_time;
1106             else
1107                 pkt.pts += 90 * sub->end_display_time;
1108         }
1109         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1110     }
1111 }
1112
1113 static int bit_buffer_size= 1024*256;
1114 static uint8_t *bit_buffer= NULL;
1115
1116 static void do_video_out(AVFormatContext *s,
1117                          OutputStream *ost,
1118                          InputStream *ist,
1119                          AVFrame *in_picture,
1120                          int *frame_size, float quality)
1121 {
1122     int nb_frames, i, ret, resample_changed;
1123     AVFrame *final_picture, *formatted_picture;
1124     AVCodecContext *enc, *dec;
1125     double sync_ipts;
1126
1127     enc = ost->st->codec;
1128     dec = ist->st->codec;
1129
1130     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1131
1132     /* by default, we output a single frame */
1133     nb_frames = 1;
1134
1135     *frame_size = 0;
1136
1137     if(video_sync_method){
1138         double vdelta = sync_ipts - ost->sync_opts;
1139         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1140         if (vdelta < -1.1)
1141             nb_frames = 0;
1142         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1143             if(vdelta<=-0.6){
1144                 nb_frames=0;
1145             }else if(vdelta>0.6)
1146                 ost->sync_opts= lrintf(sync_ipts);
1147         }else if (vdelta > 1.1)
1148             nb_frames = lrintf(vdelta);
1149 //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);
1150         if (nb_frames == 0){
1151             ++nb_frames_drop;
1152             if (verbose>2)
1153                 fprintf(stderr, "*** drop!\n");
1154         }else if (nb_frames > 1) {
1155             nb_frames_dup += nb_frames - 1;
1156             if (verbose>2)
1157                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1158         }
1159     }else
1160         ost->sync_opts= lrintf(sync_ipts);
1161
1162     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1163     if (nb_frames <= 0)
1164         return;
1165
1166     formatted_picture = in_picture;
1167     final_picture = formatted_picture;
1168
1169     resample_changed = ost->resample_width   != dec->width  ||
1170                        ost->resample_height  != dec->height ||
1171                        ost->resample_pix_fmt != dec->pix_fmt;
1172
1173     if (resample_changed) {
1174         av_log(NULL, AV_LOG_INFO,
1175                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1176                ist->file_index, ist->st->index,
1177                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1178                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1179         if(!ost->video_resample)
1180             ffmpeg_exit(1);
1181     }
1182
1183 #if !CONFIG_AVFILTER
1184     if (ost->video_resample) {
1185         final_picture = &ost->pict_tmp;
1186         if (resample_changed) {
1187             /* initialize a new scaler context */
1188             sws_freeContext(ost->img_resample_ctx);
1189             ost->img_resample_ctx = sws_getContext(
1190                 ist->st->codec->width,
1191                 ist->st->codec->height,
1192                 ist->st->codec->pix_fmt,
1193                 ost->st->codec->width,
1194                 ost->st->codec->height,
1195                 ost->st->codec->pix_fmt,
1196                 ost->sws_flags, NULL, NULL, NULL);
1197             if (ost->img_resample_ctx == NULL) {
1198                 fprintf(stderr, "Cannot get resampling context\n");
1199                 ffmpeg_exit(1);
1200             }
1201         }
1202         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1203               0, ost->resample_height, final_picture->data, final_picture->linesize);
1204     }
1205 #endif
1206
1207     /* duplicates frame if needed */
1208     for(i=0;i<nb_frames;i++) {
1209         AVPacket pkt;
1210         av_init_packet(&pkt);
1211         pkt.stream_index= ost->index;
1212
1213         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1214             /* raw pictures are written as AVPicture structure to
1215                avoid any copies. We support temorarily the older
1216                method. */
1217             AVFrame* old_frame = enc->coded_frame;
1218             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1219             pkt.data= (uint8_t *)final_picture;
1220             pkt.size=  sizeof(AVPicture);
1221             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1222             pkt.flags |= AV_PKT_FLAG_KEY;
1223
1224             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1225             enc->coded_frame = old_frame;
1226         } else {
1227             AVFrame big_picture;
1228
1229             big_picture= *final_picture;
1230             /* better than nothing: use input picture interlaced
1231                settings */
1232             big_picture.interlaced_frame = in_picture->interlaced_frame;
1233             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1234                 if(top_field_first == -1)
1235                     big_picture.top_field_first = in_picture->top_field_first;
1236                 else
1237                     big_picture.top_field_first = top_field_first;
1238             }
1239
1240             /* handles sameq here. This is not correct because it may
1241                not be a global option */
1242             big_picture.quality = quality;
1243             if(!me_threshold)
1244                 big_picture.pict_type = 0;
1245 //            big_picture.pts = AV_NOPTS_VALUE;
1246             big_picture.pts= ost->sync_opts;
1247 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1248 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1249             if (ost->forced_kf_index < ost->forced_kf_count &&
1250                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1251                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1252                 ost->forced_kf_index++;
1253             }
1254             ret = avcodec_encode_video(enc,
1255                                        bit_buffer, bit_buffer_size,
1256                                        &big_picture);
1257             if (ret < 0) {
1258                 fprintf(stderr, "Video encoding failed\n");
1259                 ffmpeg_exit(1);
1260             }
1261
1262             if(ret>0){
1263                 pkt.data= bit_buffer;
1264                 pkt.size= ret;
1265                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1266                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1267 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1268    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1269    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1270
1271                 if(enc->coded_frame->key_frame)
1272                     pkt.flags |= AV_PKT_FLAG_KEY;
1273                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1274                 *frame_size = ret;
1275                 video_size += ret;
1276                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1277                 //        enc->frame_number-1, ret, enc->pict_type);
1278                 /* if two pass, output log */
1279                 if (ost->logfile && enc->stats_out) {
1280                     fprintf(ost->logfile, "%s", enc->stats_out);
1281                 }
1282             }
1283         }
1284         ost->sync_opts++;
1285         ost->frame_number++;
1286     }
1287 }
1288
1289 static double psnr(double d){
1290     return -10.0*log(d)/log(10.0);
1291 }
1292
1293 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1294                            int frame_size)
1295 {
1296     AVCodecContext *enc;
1297     int frame_number;
1298     double ti1, bitrate, avg_bitrate;
1299
1300     /* this is executed just the first time do_video_stats is called */
1301     if (!vstats_file) {
1302         vstats_file = fopen(vstats_filename, "w");
1303         if (!vstats_file) {
1304             perror("fopen");
1305             ffmpeg_exit(1);
1306         }
1307     }
1308
1309     enc = ost->st->codec;
1310     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1311         frame_number = ost->frame_number;
1312         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1313         if (enc->flags&CODEC_FLAG_PSNR)
1314             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1315
1316         fprintf(vstats_file,"f_size= %6d ", frame_size);
1317         /* compute pts value */
1318         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1319         if (ti1 < 0.01)
1320             ti1 = 0.01;
1321
1322         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1323         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1324         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1325             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1326         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1327     }
1328 }
1329
1330 static void print_report(AVFormatContext **output_files,
1331                          OutputStream **ost_table, int nb_ostreams,
1332                          int is_last_report)
1333 {
1334     char buf[1024];
1335     OutputStream *ost;
1336     AVFormatContext *oc;
1337     int64_t total_size;
1338     AVCodecContext *enc;
1339     int frame_number, vid, i;
1340     double bitrate, ti1, pts;
1341     static int64_t last_time = -1;
1342     static int qp_histogram[52];
1343
1344     if (!is_last_report) {
1345         int64_t cur_time;
1346         /* display the report every 0.5 seconds */
1347         cur_time = av_gettime();
1348         if (last_time == -1) {
1349             last_time = cur_time;
1350             return;
1351         }
1352         if ((cur_time - last_time) < 500000)
1353             return;
1354         last_time = cur_time;
1355     }
1356
1357
1358     oc = output_files[0];
1359
1360     total_size = avio_size(oc->pb);
1361     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1362         total_size= avio_tell(oc->pb);
1363
1364     buf[0] = '\0';
1365     ti1 = 1e10;
1366     vid = 0;
1367     for(i=0;i<nb_ostreams;i++) {
1368         float q = -1;
1369         ost = ost_table[i];
1370         enc = ost->st->codec;
1371         if (!ost->st->stream_copy && enc->coded_frame)
1372             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1373         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1374             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1375         }
1376         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1377             float t = (av_gettime()-timer_start) / 1000000.0;
1378
1379             frame_number = ost->frame_number;
1380             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1381                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1382             if(is_last_report)
1383                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1384             if(qp_hist){
1385                 int j;
1386                 int qp = lrintf(q);
1387                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1388                     qp_histogram[qp]++;
1389                 for(j=0; j<32; j++)
1390                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1391             }
1392             if (enc->flags&CODEC_FLAG_PSNR){
1393                 int j;
1394                 double error, error_sum=0;
1395                 double scale, scale_sum=0;
1396                 char type[3]= {'Y','U','V'};
1397                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1398                 for(j=0; j<3; j++){
1399                     if(is_last_report){
1400                         error= enc->error[j];
1401                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1402                     }else{
1403                         error= enc->coded_frame->error[j];
1404                         scale= enc->width*enc->height*255.0*255.0;
1405                     }
1406                     if(j) scale/=4;
1407                     error_sum += error;
1408                     scale_sum += scale;
1409                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1410                 }
1411                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1412             }
1413             vid = 1;
1414         }
1415         /* compute min output value */
1416         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1417         if ((pts < ti1) && (pts > 0))
1418             ti1 = pts;
1419     }
1420     if (ti1 < 0.01)
1421         ti1 = 0.01;
1422
1423     if (verbose > 0 || is_last_report) {
1424         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1425
1426         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1427             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1428             (double)total_size / 1024, ti1, bitrate);
1429
1430         if (nb_frames_dup || nb_frames_drop)
1431           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1432                   nb_frames_dup, nb_frames_drop);
1433
1434         if (verbose >= 0)
1435             fprintf(stderr, "%s    \r", buf);
1436
1437         fflush(stderr);
1438     }
1439
1440     if (is_last_report && verbose >= 0){
1441         int64_t raw= audio_size + video_size + extra_size;
1442         fprintf(stderr, "\n");
1443         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1444                 video_size/1024.0,
1445                 audio_size/1024.0,
1446                 extra_size/1024.0,
1447                 100.0*(total_size - raw)/raw
1448         );
1449     }
1450 }
1451
1452 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1453 {
1454     int fill_char = 0x00;
1455     if (sample_fmt == AV_SAMPLE_FMT_U8)
1456         fill_char = 0x80;
1457     memset(buf, fill_char, size);
1458 }
1459
1460 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1461 static int output_packet(InputStream *ist, int ist_index,
1462                          OutputStream **ost_table, int nb_ostreams,
1463                          const AVPacket *pkt)
1464 {
1465     AVFormatContext *os;
1466     OutputStream *ost;
1467     int ret, i;
1468     int got_output;
1469     AVFrame picture;
1470     void *buffer_to_free = NULL;
1471     static unsigned int samples_size= 0;
1472     AVSubtitle subtitle, *subtitle_to_free;
1473     int64_t pkt_pts = AV_NOPTS_VALUE;
1474 #if CONFIG_AVFILTER
1475     int frame_available;
1476 #endif
1477     float quality;
1478
1479     AVPacket avpkt;
1480     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1481
1482     if(ist->next_pts == AV_NOPTS_VALUE)
1483         ist->next_pts= ist->pts;
1484
1485     if (pkt == NULL) {
1486         /* EOF handling */
1487         av_init_packet(&avpkt);
1488         avpkt.data = NULL;
1489         avpkt.size = 0;
1490         goto handle_eof;
1491     } else {
1492         avpkt = *pkt;
1493     }
1494
1495     if(pkt->dts != AV_NOPTS_VALUE)
1496         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1497     if(pkt->pts != AV_NOPTS_VALUE)
1498         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1499
1500     //while we have more to decode or while the decoder did output something on EOF
1501     while (avpkt.size > 0 || (!pkt && got_output)) {
1502         uint8_t *data_buf, *decoded_data_buf;
1503         int data_size, decoded_data_size;
1504     handle_eof:
1505         ist->pts= ist->next_pts;
1506
1507         if(avpkt.size && avpkt.size != pkt->size &&
1508            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1509             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1510             ist->showed_multi_packet_warning=1;
1511         }
1512
1513         /* decode the packet if needed */
1514         decoded_data_buf = NULL; /* fail safe */
1515         decoded_data_size= 0;
1516         data_buf  = avpkt.data;
1517         data_size = avpkt.size;
1518         subtitle_to_free = NULL;
1519         if (ist->decoding_needed) {
1520             switch(ist->st->codec->codec_type) {
1521             case AVMEDIA_TYPE_AUDIO:{
1522                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1523                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1524                     av_free(samples);
1525                     samples= av_malloc(samples_size);
1526                 }
1527                 decoded_data_size= samples_size;
1528                     /* XXX: could avoid copy if PCM 16 bits with same
1529                        endianness as CPU */
1530                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1531                                             &avpkt);
1532                 if (ret < 0)
1533                     goto fail_decode;
1534                 avpkt.data += ret;
1535                 avpkt.size -= ret;
1536                 data_size   = ret;
1537                 got_output  = decoded_data_size > 0;
1538                 /* Some bug in mpeg audio decoder gives */
1539                 /* decoded_data_size < 0, it seems they are overflows */
1540                 if (!got_output) {
1541                     /* no audio frame */
1542                     continue;
1543                 }
1544                 decoded_data_buf = (uint8_t *)samples;
1545                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1546                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1547                 break;}
1548             case AVMEDIA_TYPE_VIDEO:
1549                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1550                     /* XXX: allocate picture correctly */
1551                     avcodec_get_frame_defaults(&picture);
1552                     avpkt.pts = pkt_pts;
1553                     avpkt.dts = ist->pts;
1554                     pkt_pts = AV_NOPTS_VALUE;
1555
1556                     ret = avcodec_decode_video2(ist->st->codec,
1557                                                 &picture, &got_output, &avpkt);
1558                     quality = same_quality ? picture.quality : 0;
1559                     if (ret < 0)
1560                         goto fail_decode;
1561                     if (!got_output) {
1562                         /* no picture yet */
1563                         goto discard_packet;
1564                     }
1565                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1566                     if (ist->st->codec->time_base.num != 0) {
1567                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1568                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1569                                           ist->st->codec->time_base.num * ticks) /
1570                             ist->st->codec->time_base.den;
1571                     }
1572                     avpkt.size = 0;
1573                     buffer_to_free = NULL;
1574                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1575                     break;
1576             case AVMEDIA_TYPE_SUBTITLE:
1577                 ret = avcodec_decode_subtitle2(ist->st->codec,
1578                                                &subtitle, &got_output, &avpkt);
1579                 if (ret < 0)
1580                     goto fail_decode;
1581                 if (!got_output) {
1582                     goto discard_packet;
1583                 }
1584                 subtitle_to_free = &subtitle;
1585                 avpkt.size = 0;
1586                 break;
1587             default:
1588                 goto fail_decode;
1589             }
1590         } else {
1591             switch(ist->st->codec->codec_type) {
1592             case AVMEDIA_TYPE_AUDIO:
1593                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1594                     ist->st->codec->sample_rate;
1595                 break;
1596             case AVMEDIA_TYPE_VIDEO:
1597                 if (ist->st->codec->time_base.num != 0) {
1598                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1599                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1600                                       ist->st->codec->time_base.num * ticks) /
1601                         ist->st->codec->time_base.den;
1602                 }
1603                 break;
1604             }
1605             ret = avpkt.size;
1606             avpkt.size = 0;
1607         }
1608
1609 #if CONFIG_AVFILTER
1610         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1611             for (i = 0; i < nb_ostreams; i++) {
1612                 ost = ost_table[i];
1613                 if (ost->input_video_filter && ost->source_index == ist_index) {
1614                     AVRational sar;
1615                     if (ist->st->sample_aspect_ratio.num)
1616                         sar = ist->st->sample_aspect_ratio;
1617                     else
1618                         sar = ist->st->codec->sample_aspect_ratio;
1619                     // add it to be filtered
1620                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1621                                              ist->pts,
1622                                              sar);
1623                 }
1624             }
1625         }
1626 #endif
1627
1628         // preprocess audio (volume)
1629         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1630             if (audio_volume != 256) {
1631                 short *volp;
1632                 volp = samples;
1633                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1634                     int v = ((*volp) * audio_volume + 128) >> 8;
1635                     if (v < -32768) v = -32768;
1636                     if (v >  32767) v = 32767;
1637                     *volp++ = v;
1638                 }
1639             }
1640         }
1641
1642         /* frame rate emulation */
1643         if (rate_emu) {
1644             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1645             int64_t now = av_gettime() - ist->start;
1646             if (pts > now)
1647                 usleep(pts - now);
1648         }
1649         /* if output time reached then transcode raw format,
1650            encode packets and output them */
1651         if (start_time == 0 || ist->pts >= start_time)
1652             for(i=0;i<nb_ostreams;i++) {
1653                 int frame_size;
1654
1655                 ost = ost_table[i];
1656                 if (ost->source_index == ist_index) {
1657 #if CONFIG_AVFILTER
1658                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1659                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1660                 while (frame_available) {
1661                     AVRational ist_pts_tb;
1662                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1663                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1664                     if (ost->picref)
1665                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1666 #endif
1667                     os = output_files[ost->file_index];
1668
1669                     /* set the input output pts pairs */
1670                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1671
1672                     if (ost->encoding_needed) {
1673                         av_assert0(ist->decoding_needed);
1674                         switch(ost->st->codec->codec_type) {
1675                         case AVMEDIA_TYPE_AUDIO:
1676                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1677                             break;
1678                         case AVMEDIA_TYPE_VIDEO:
1679 #if CONFIG_AVFILTER
1680                             if (ost->picref->video && !ost->frame_aspect_ratio)
1681                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1682 #endif
1683                             do_video_out(os, ost, ist, &picture, &frame_size,
1684                                          same_quality ? quality : ost->st->codec->global_quality);
1685                             if (vstats_filename && frame_size)
1686                                 do_video_stats(os, ost, frame_size);
1687                             break;
1688                         case AVMEDIA_TYPE_SUBTITLE:
1689                             do_subtitle_out(os, ost, ist, &subtitle,
1690                                             pkt->pts);
1691                             break;
1692                         default:
1693                             abort();
1694                         }
1695                     } else {
1696                         AVFrame avframe; //FIXME/XXX remove this
1697                         AVPacket opkt;
1698                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1699
1700                         av_init_packet(&opkt);
1701
1702                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1703 #if !CONFIG_AVFILTER
1704                             continue;
1705 #else
1706                             goto cont;
1707 #endif
1708
1709                         /* no reencoding needed : output the packet directly */
1710                         /* force the input stream PTS */
1711
1712                         avcodec_get_frame_defaults(&avframe);
1713                         ost->st->codec->coded_frame= &avframe;
1714                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1715
1716                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1717                             audio_size += data_size;
1718                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1719                             video_size += data_size;
1720                             ost->sync_opts++;
1721                         }
1722
1723                         opkt.stream_index= ost->index;
1724                         if(pkt->pts != AV_NOPTS_VALUE)
1725                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1726                         else
1727                             opkt.pts= AV_NOPTS_VALUE;
1728
1729                         if (pkt->dts == AV_NOPTS_VALUE)
1730                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1731                         else
1732                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1733                         opkt.dts -= ost_tb_start_time;
1734
1735                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1736                         opkt.flags= pkt->flags;
1737
1738                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1739                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1740                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1741                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1742                            ) {
1743                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1744                                 opkt.destruct= av_destruct_packet;
1745                         } else {
1746                             opkt.data = data_buf;
1747                             opkt.size = data_size;
1748                         }
1749
1750                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1751                         ost->st->codec->frame_number++;
1752                         ost->frame_number++;
1753                         av_free_packet(&opkt);
1754                     }
1755 #if CONFIG_AVFILTER
1756                     cont:
1757                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1758                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1759                     if (ost->picref)
1760                         avfilter_unref_buffer(ost->picref);
1761                 }
1762 #endif
1763                 }
1764             }
1765
1766         av_free(buffer_to_free);
1767         /* XXX: allocate the subtitles in the codec ? */
1768         if (subtitle_to_free) {
1769             avsubtitle_free(subtitle_to_free);
1770             subtitle_to_free = NULL;
1771         }
1772     }
1773  discard_packet:
1774     if (pkt == NULL) {
1775         /* EOF handling */
1776
1777         for(i=0;i<nb_ostreams;i++) {
1778             ost = ost_table[i];
1779             if (ost->source_index == ist_index) {
1780                 AVCodecContext *enc= ost->st->codec;
1781                 os = output_files[ost->file_index];
1782
1783                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1784                     continue;
1785                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1786                     continue;
1787
1788                 if (ost->encoding_needed) {
1789                     for(;;) {
1790                         AVPacket pkt;
1791                         int fifo_bytes;
1792                         av_init_packet(&pkt);
1793                         pkt.stream_index= ost->index;
1794
1795                         switch(ost->st->codec->codec_type) {
1796                         case AVMEDIA_TYPE_AUDIO:
1797                             fifo_bytes = av_fifo_size(ost->fifo);
1798                             ret = 0;
1799                             /* encode any samples remaining in fifo */
1800                             if (fifo_bytes > 0) {
1801                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1802                                 int fs_tmp = enc->frame_size;
1803
1804                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1805                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1806                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1807                                 } else { /* pad */
1808                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1809                                     if (allocated_audio_buf_size < frame_bytes)
1810                                         ffmpeg_exit(1);
1811                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1812                                 }
1813
1814                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1815                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1816                                                           ost->st->time_base.num, enc->sample_rate);
1817                                 enc->frame_size = fs_tmp;
1818                             }
1819                             if(ret <= 0) {
1820                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1821                             }
1822                             if (ret < 0) {
1823                                 fprintf(stderr, "Audio encoding failed\n");
1824                                 ffmpeg_exit(1);
1825                             }
1826                             audio_size += ret;
1827                             pkt.flags |= AV_PKT_FLAG_KEY;
1828                             break;
1829                         case AVMEDIA_TYPE_VIDEO:
1830                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1831                             if (ret < 0) {
1832                                 fprintf(stderr, "Video encoding failed\n");
1833                                 ffmpeg_exit(1);
1834                             }
1835                             video_size += ret;
1836                             if(enc->coded_frame && enc->coded_frame->key_frame)
1837                                 pkt.flags |= AV_PKT_FLAG_KEY;
1838                             if (ost->logfile && enc->stats_out) {
1839                                 fprintf(ost->logfile, "%s", enc->stats_out);
1840                             }
1841                             break;
1842                         default:
1843                             ret=-1;
1844                         }
1845
1846                         if(ret<=0)
1847                             break;
1848                         pkt.data= bit_buffer;
1849                         pkt.size= ret;
1850                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1851                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1852                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1853                     }
1854                 }
1855             }
1856         }
1857     }
1858
1859     return 0;
1860  fail_decode:
1861     return -1;
1862 }
1863
1864 static void print_sdp(AVFormatContext **avc, int n)
1865 {
1866     char sdp[2048];
1867
1868     av_sdp_create(avc, n, sdp, sizeof(sdp));
1869     printf("SDP:\n%s\n", sdp);
1870     fflush(stdout);
1871 }
1872
1873 static int copy_chapters(int infile, int outfile)
1874 {
1875     AVFormatContext *is = input_files[infile].ctx;
1876     AVFormatContext *os = output_files[outfile];
1877     int i;
1878
1879     for (i = 0; i < is->nb_chapters; i++) {
1880         AVChapter *in_ch = is->chapters[i], *out_ch;
1881         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1882                                       AV_TIME_BASE_Q, in_ch->time_base);
1883         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1884                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1885
1886
1887         if (in_ch->end < ts_off)
1888             continue;
1889         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1890             break;
1891
1892         out_ch = av_mallocz(sizeof(AVChapter));
1893         if (!out_ch)
1894             return AVERROR(ENOMEM);
1895
1896         out_ch->id        = in_ch->id;
1897         out_ch->time_base = in_ch->time_base;
1898         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1899         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1900
1901         if (metadata_chapters_autocopy)
1902             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1903
1904         os->nb_chapters++;
1905         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1906         if (!os->chapters)
1907             return AVERROR(ENOMEM);
1908         os->chapters[os->nb_chapters - 1] = out_ch;
1909     }
1910     return 0;
1911 }
1912
1913 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1914                                     AVCodecContext *avctx)
1915 {
1916     char *p;
1917     int n = 1, i;
1918     int64_t t;
1919
1920     for (p = kf; *p; p++)
1921         if (*p == ',')
1922             n++;
1923     ost->forced_kf_count = n;
1924     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1925     if (!ost->forced_kf_pts) {
1926         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1927         ffmpeg_exit(1);
1928     }
1929     for (i = 0; i < n; i++) {
1930         p = i ? strchr(p, ',') + 1 : kf;
1931         t = parse_time_or_die("force_key_frames", p, 1);
1932         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1933     }
1934 }
1935
1936 /*
1937  * The following code is the main loop of the file converter
1938  */
1939 static int transcode(AVFormatContext **output_files,
1940                      int nb_output_files,
1941                      InputFile *input_files,
1942                      int nb_input_files,
1943                      StreamMap *stream_maps, int nb_stream_maps)
1944 {
1945     int ret = 0, i, j, k, n, nb_ostreams = 0;
1946     AVFormatContext *is, *os;
1947     AVCodecContext *codec, *icodec;
1948     OutputStream *ost, **ost_table = NULL;
1949     InputStream *ist;
1950     char error[1024];
1951     int want_sdp = 1;
1952     uint8_t no_packet[MAX_FILES]={0};
1953     int no_packet_count=0;
1954
1955     if (rate_emu)
1956         for (i = 0; i < nb_input_streams; i++)
1957             input_streams[i].start = av_gettime();
1958
1959     /* output stream init */
1960     nb_ostreams = 0;
1961     for(i=0;i<nb_output_files;i++) {
1962         os = output_files[i];
1963         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1964             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1965             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1966             ret = AVERROR(EINVAL);
1967             goto fail;
1968         }
1969         nb_ostreams += os->nb_streams;
1970     }
1971     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1972         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1973         ret = AVERROR(EINVAL);
1974         goto fail;
1975     }
1976
1977     /* Sanity check the mapping args -- do the input files & streams exist? */
1978     for(i=0;i<nb_stream_maps;i++) {
1979         int fi = stream_maps[i].file_index;
1980         int si = stream_maps[i].stream_index;
1981
1982         if (fi < 0 || fi > nb_input_files - 1 ||
1983             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1984             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1985             ret = AVERROR(EINVAL);
1986             goto fail;
1987         }
1988         fi = stream_maps[i].sync_file_index;
1989         si = stream_maps[i].sync_stream_index;
1990         if (fi < 0 || fi > nb_input_files - 1 ||
1991             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1992             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1993             ret = AVERROR(EINVAL);
1994             goto fail;
1995         }
1996     }
1997
1998     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1999     if (!ost_table)
2000         goto fail;
2001     n = 0;
2002     for(k=0;k<nb_output_files;k++) {
2003         os = output_files[k];
2004         for(i=0;i<os->nb_streams;i++,n++) {
2005             int found;
2006             ost = ost_table[n] = output_streams_for_file[k][i];
2007             if (nb_stream_maps > 0) {
2008                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2009                     stream_maps[n].stream_index;
2010
2011                 /* Sanity check that the stream types match */
2012                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2013                     int i= ost->file_index;
2014                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2015                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2016                         stream_maps[n].file_index, stream_maps[n].stream_index,
2017                         ost->file_index, ost->index);
2018                     ffmpeg_exit(1);
2019                 }
2020
2021             } else {
2022                 int best_nb_frames=-1;
2023                 /* get corresponding input stream index : we select the first one with the right type */
2024                 found = 0;
2025                 for (j = 0; j < nb_input_streams; j++) {
2026                     int skip=0;
2027                     ist = &input_streams[j];
2028                     if(opt_programid){
2029                         int pi,si;
2030                         AVFormatContext *f = input_files[ist->file_index].ctx;
2031                         skip=1;
2032                         for(pi=0; pi<f->nb_programs; pi++){
2033                             AVProgram *p= f->programs[pi];
2034                             if(p->id == opt_programid)
2035                                 for(si=0; si<p->nb_stream_indexes; si++){
2036                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2037                                         skip=0;
2038                                 }
2039                         }
2040                     }
2041                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2042                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2043                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2044                             best_nb_frames= ist->st->codec_info_nb_frames;
2045                             ost->source_index = j;
2046                             found = 1;
2047                         }
2048                     }
2049                 }
2050
2051                 if (!found) {
2052                     if(! opt_programid) {
2053                         /* try again and reuse existing stream */
2054                         for (j = 0; j < nb_input_streams; j++) {
2055                             ist = &input_streams[j];
2056                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2057                                 && ist->st->discard != AVDISCARD_ALL) {
2058                                 ost->source_index = j;
2059                                 found = 1;
2060                             }
2061                         }
2062                     }
2063                     if (!found) {
2064                         int i= ost->file_index;
2065                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2066                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2067                                 ost->file_index, ost->index);
2068                         ffmpeg_exit(1);
2069                     }
2070                 }
2071             }
2072             ist = &input_streams[ost->source_index];
2073             ist->discard = 0;
2074             ost->sync_ist = (nb_stream_maps > 0) ?
2075                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2076                          stream_maps[n].sync_stream_index] : ist;
2077         }
2078     }
2079
2080     /* for each output stream, we compute the right encoding parameters */
2081     for(i=0;i<nb_ostreams;i++) {
2082         ost = ost_table[i];
2083         os = output_files[ost->file_index];
2084         ist = &input_streams[ost->source_index];
2085
2086         codec = ost->st->codec;
2087         icodec = ist->st->codec;
2088
2089         if (metadata_streams_autocopy)
2090             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2091                          AV_DICT_DONT_OVERWRITE);
2092
2093         ost->st->disposition = ist->st->disposition;
2094         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2095         codec->chroma_sample_location = icodec->chroma_sample_location;
2096
2097         if (ost->st->stream_copy) {
2098             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2099
2100             if (extra_size > INT_MAX)
2101                 goto fail;
2102
2103             /* if stream_copy is selected, no need to decode or encode */
2104             codec->codec_id = icodec->codec_id;
2105             codec->codec_type = icodec->codec_type;
2106
2107             if(!codec->codec_tag){
2108                 if(   !os->oformat->codec_tag
2109                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2110                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2111                     codec->codec_tag = icodec->codec_tag;
2112             }
2113
2114             codec->bit_rate = icodec->bit_rate;
2115             codec->rc_max_rate    = icodec->rc_max_rate;
2116             codec->rc_buffer_size = icodec->rc_buffer_size;
2117             codec->extradata= av_mallocz(extra_size);
2118             if (!codec->extradata)
2119                 goto fail;
2120             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2121             codec->extradata_size= icodec->extradata_size;
2122             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){
2123                 codec->time_base = icodec->time_base;
2124                 codec->time_base.num *= icodec->ticks_per_frame;
2125                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2126                           codec->time_base.num, codec->time_base.den, INT_MAX);
2127             }else
2128                 codec->time_base = ist->st->time_base;
2129             switch(codec->codec_type) {
2130             case AVMEDIA_TYPE_AUDIO:
2131                 if(audio_volume != 256) {
2132                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2133                     ffmpeg_exit(1);
2134                 }
2135                 codec->channel_layout = icodec->channel_layout;
2136                 codec->sample_rate = icodec->sample_rate;
2137                 codec->channels = icodec->channels;
2138                 codec->frame_size = icodec->frame_size;
2139                 codec->audio_service_type = icodec->audio_service_type;
2140                 codec->block_align= icodec->block_align;
2141                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2142                     codec->block_align= 0;
2143                 if(codec->codec_id == CODEC_ID_AC3)
2144                     codec->block_align= 0;
2145                 break;
2146             case AVMEDIA_TYPE_VIDEO:
2147                 codec->pix_fmt = icodec->pix_fmt;
2148                 codec->width = icodec->width;
2149                 codec->height = icodec->height;
2150                 codec->has_b_frames = icodec->has_b_frames;
2151                 if (!codec->sample_aspect_ratio.num) {
2152                     codec->sample_aspect_ratio =
2153                     ost->st->sample_aspect_ratio =
2154                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2155                         ist->st->codec->sample_aspect_ratio.num ?
2156                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2157                 }
2158                 break;
2159             case AVMEDIA_TYPE_SUBTITLE:
2160                 codec->width = icodec->width;
2161                 codec->height = icodec->height;
2162                 break;
2163             case AVMEDIA_TYPE_DATA:
2164                 break;
2165             default:
2166                 abort();
2167             }
2168         } else {
2169             if (!ost->enc)
2170                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2171             switch(codec->codec_type) {
2172             case AVMEDIA_TYPE_AUDIO:
2173                 ost->fifo= av_fifo_alloc(1024);
2174                 if(!ost->fifo)
2175                     goto fail;
2176                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2177                 if (!codec->sample_rate) {
2178                     codec->sample_rate = icodec->sample_rate;
2179                     if (icodec->lowres)
2180                         codec->sample_rate >>= icodec->lowres;
2181                 }
2182                 choose_sample_rate(ost->st, ost->enc);
2183                 codec->time_base = (AVRational){1, codec->sample_rate};
2184                 if (!codec->channels)
2185                     codec->channels = icodec->channels;
2186                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2187                     codec->channel_layout = 0;
2188                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2189                 icodec->request_channels = codec->channels;
2190                 ist->decoding_needed = 1;
2191                 ost->encoding_needed = 1;
2192                 ost->resample_sample_fmt  = icodec->sample_fmt;
2193                 ost->resample_sample_rate = icodec->sample_rate;
2194                 ost->resample_channels    = icodec->channels;
2195                 break;
2196             case AVMEDIA_TYPE_VIDEO:
2197                 if (codec->pix_fmt == PIX_FMT_NONE)
2198                     codec->pix_fmt = icodec->pix_fmt;
2199                 choose_pixel_fmt(ost->st, ost->enc);
2200
2201                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2202                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2203                     ffmpeg_exit(1);
2204                 }
2205                 ost->video_resample = codec->width   != icodec->width  ||
2206                                       codec->height  != icodec->height ||
2207                                       codec->pix_fmt != icodec->pix_fmt;
2208                 if (ost->video_resample) {
2209 #if !CONFIG_AVFILTER
2210                     avcodec_get_frame_defaults(&ost->pict_tmp);
2211                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2212                                          codec->width, codec->height)) {
2213                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2214                         ffmpeg_exit(1);
2215                     }
2216                     ost->img_resample_ctx = sws_getContext(
2217                         icodec->width,
2218                         icodec->height,
2219                             icodec->pix_fmt,
2220                             codec->width,
2221                             codec->height,
2222                             codec->pix_fmt,
2223                             ost->sws_flags, NULL, NULL, NULL);
2224                     if (ost->img_resample_ctx == NULL) {
2225                         fprintf(stderr, "Cannot get resampling context\n");
2226                         ffmpeg_exit(1);
2227                     }
2228 #endif
2229                     codec->bits_per_raw_sample= 0;
2230                 }
2231                 if (!codec->width || !codec->height) {
2232                     codec->width  = icodec->width;
2233                     codec->height = icodec->height;
2234                 }
2235                 ost->resample_height = icodec->height;
2236                 ost->resample_width  = icodec->width;
2237                 ost->resample_pix_fmt= icodec->pix_fmt;
2238                 ost->encoding_needed = 1;
2239                 ist->decoding_needed = 1;
2240
2241                 if (!ost->frame_rate.num)
2242                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2243                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2244                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2245                     ost->frame_rate = ost->enc->supported_framerates[idx];
2246                 }
2247                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2248
2249 #if CONFIG_AVFILTER
2250                 if (configure_video_filters(ist, ost)) {
2251                     fprintf(stderr, "Error opening filters!\n");
2252                     exit(1);
2253                 }
2254 #endif
2255                 break;
2256             case AVMEDIA_TYPE_SUBTITLE:
2257                 ost->encoding_needed = 1;
2258                 ist->decoding_needed = 1;
2259                 break;
2260             default:
2261                 abort();
2262                 break;
2263             }
2264             /* two pass mode */
2265             if (ost->encoding_needed &&
2266                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2267                 char logfilename[1024];
2268                 FILE *f;
2269
2270                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2271                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2272                          i);
2273                 if (codec->flags & CODEC_FLAG_PASS1) {
2274                     f = fopen(logfilename, "wb");
2275                     if (!f) {
2276                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2277                         ffmpeg_exit(1);
2278                     }
2279                     ost->logfile = f;
2280                 } else {
2281                     char  *logbuffer;
2282                     size_t logbuffer_size;
2283                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2284                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2285                         ffmpeg_exit(1);
2286                     }
2287                     codec->stats_in = logbuffer;
2288                 }
2289             }
2290         }
2291         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2292             int size= codec->width * codec->height;
2293             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2294         }
2295     }
2296
2297     if (!bit_buffer)
2298         bit_buffer = av_malloc(bit_buffer_size);
2299     if (!bit_buffer) {
2300         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2301                 bit_buffer_size);
2302         ret = AVERROR(ENOMEM);
2303         goto fail;
2304     }
2305
2306     /* open each encoder */
2307     for(i=0;i<nb_ostreams;i++) {
2308         ost = ost_table[i];
2309         if (ost->encoding_needed) {
2310             AVCodec *codec = ost->enc;
2311             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2312             if (!codec) {
2313                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2314                          ost->st->codec->codec_id, ost->file_index, ost->index);
2315                 ret = AVERROR(EINVAL);
2316                 goto dump_format;
2317             }
2318             if (dec->subtitle_header) {
2319                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2320                 if (!ost->st->codec->subtitle_header) {
2321                     ret = AVERROR(ENOMEM);
2322                     goto dump_format;
2323                 }
2324                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2325                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2326             }
2327             if (avcodec_open(ost->st->codec, codec) < 0) {
2328                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2329                         ost->file_index, ost->index);
2330                 ret = AVERROR(EINVAL);
2331                 goto dump_format;
2332             }
2333             extra_size += ost->st->codec->extradata_size;
2334         }
2335     }
2336
2337     /* open each decoder */
2338     for (i = 0; i < nb_input_streams; i++) {
2339         ist = &input_streams[i];
2340         if (ist->decoding_needed) {
2341             AVCodec *codec = ist->dec;
2342             if (!codec)
2343                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2344             if (!codec) {
2345                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2346                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2347                 ret = AVERROR(EINVAL);
2348                 goto dump_format;
2349             }
2350
2351             /* update requested sample format for the decoder based on the
2352                corresponding encoder sample format */
2353             for (j = 0; j < nb_ostreams; j++) {
2354                 ost = ost_table[j];
2355                 if (ost->source_index == i) {
2356                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2357                     break;
2358                 }
2359             }
2360
2361             if (avcodec_open(ist->st->codec, codec) < 0) {
2362                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2363                         ist->file_index, ist->st->index);
2364                 ret = AVERROR(EINVAL);
2365                 goto dump_format;
2366             }
2367             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2368             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2369         }
2370     }
2371
2372     /* init pts */
2373     for (i = 0; i < nb_input_streams; i++) {
2374         AVStream *st;
2375         ist = &input_streams[i];
2376         st= ist->st;
2377         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2378         ist->next_pts = AV_NOPTS_VALUE;
2379         init_pts_correction(&ist->pts_ctx);
2380         ist->is_start = 1;
2381     }
2382
2383     /* set meta data information from input file if required */
2384     for (i=0;i<nb_meta_data_maps;i++) {
2385         AVFormatContext *files[2];
2386         AVDictionary    **meta[2];
2387         int j;
2388
2389 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2390         if ((index) < 0 || (index) >= (nb_elems)) {\
2391             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2392                      (desc), (index));\
2393             ret = AVERROR(EINVAL);\
2394             goto dump_format;\
2395         }
2396
2397         int out_file_index = meta_data_maps[i][0].file;
2398         int in_file_index = meta_data_maps[i][1].file;
2399         if (in_file_index < 0 || out_file_index < 0)
2400             continue;
2401         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2402         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2403
2404         files[0] = output_files[out_file_index];
2405         files[1] = input_files[in_file_index].ctx;
2406
2407         for (j = 0; j < 2; j++) {
2408             MetadataMap *map = &meta_data_maps[i][j];
2409
2410             switch (map->type) {
2411             case 'g':
2412                 meta[j] = &files[j]->metadata;
2413                 break;
2414             case 's':
2415                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2416                 meta[j] = &files[j]->streams[map->index]->metadata;
2417                 break;
2418             case 'c':
2419                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2420                 meta[j] = &files[j]->chapters[map->index]->metadata;
2421                 break;
2422             case 'p':
2423                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2424                 meta[j] = &files[j]->programs[map->index]->metadata;
2425                 break;
2426             }
2427         }
2428
2429         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2430     }
2431
2432     /* copy global metadata by default */
2433     if (metadata_global_autocopy) {
2434
2435         for (i = 0; i < nb_output_files; i++)
2436             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2437                          AV_DICT_DONT_OVERWRITE);
2438     }
2439
2440     /* copy chapters according to chapter maps */
2441     for (i = 0; i < nb_chapter_maps; i++) {
2442         int infile  = chapter_maps[i].in_file;
2443         int outfile = chapter_maps[i].out_file;
2444
2445         if (infile < 0 || outfile < 0)
2446             continue;
2447         if (infile >= nb_input_files) {
2448             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2449             ret = AVERROR(EINVAL);
2450             goto dump_format;
2451         }
2452         if (outfile >= nb_output_files) {
2453             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2454             ret = AVERROR(EINVAL);
2455             goto dump_format;
2456         }
2457         copy_chapters(infile, outfile);
2458     }
2459
2460     /* copy chapters from the first input file that has them*/
2461     if (!nb_chapter_maps)
2462         for (i = 0; i < nb_input_files; i++) {
2463             if (!input_files[i].ctx->nb_chapters)
2464                 continue;
2465
2466             for (j = 0; j < nb_output_files; j++)
2467                 if ((ret = copy_chapters(i, j)) < 0)
2468                     goto dump_format;
2469             break;
2470         }
2471
2472     /* open files and write file headers */
2473     for(i=0;i<nb_output_files;i++) {
2474         os = output_files[i];
2475         if (avformat_write_header(os, &output_opts[i]) < 0) {
2476             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2477             ret = AVERROR(EINVAL);
2478             goto dump_format;
2479         }
2480         assert_avoptions(output_opts[i]);
2481         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2482             want_sdp = 0;
2483         }
2484     }
2485
2486  dump_format:
2487     /* dump the file output parameters - cannot be done before in case
2488        of stream copy */
2489     for(i=0;i<nb_output_files;i++) {
2490         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2491     }
2492
2493     /* dump the stream mapping */
2494     if (verbose >= 0) {
2495         fprintf(stderr, "Stream mapping:\n");
2496         for(i=0;i<nb_ostreams;i++) {
2497             ost = ost_table[i];
2498             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2499                     input_streams[ost->source_index].file_index,
2500                     input_streams[ost->source_index].st->index,
2501                     ost->file_index,
2502                     ost->index);
2503             if (ost->sync_ist != &input_streams[ost->source_index])
2504                 fprintf(stderr, " [sync #%d.%d]",
2505                         ost->sync_ist->file_index,
2506                         ost->sync_ist->st->index);
2507             fprintf(stderr, "\n");
2508         }
2509     }
2510
2511     if (ret) {
2512         fprintf(stderr, "%s\n", error);
2513         goto fail;
2514     }
2515
2516     if (want_sdp) {
2517         print_sdp(output_files, nb_output_files);
2518     }
2519
2520     if (verbose >= 0)
2521         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2522     term_init();
2523
2524     timer_start = av_gettime();
2525
2526     for(; received_sigterm == 0;) {
2527         int file_index, ist_index;
2528         AVPacket pkt;
2529         double ipts_min;
2530         double opts_min;
2531
2532     redo:
2533         ipts_min= 1e100;
2534         opts_min= 1e100;
2535
2536         /* select the stream that we must read now by looking at the
2537            smallest output pts */
2538         file_index = -1;
2539         for(i=0;i<nb_ostreams;i++) {
2540             double ipts, opts;
2541             ost = ost_table[i];
2542             os = output_files[ost->file_index];
2543             ist = &input_streams[ost->source_index];
2544             if(ist->is_past_recording_time || no_packet[ist->file_index])
2545                 continue;
2546                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2547             ipts = (double)ist->pts;
2548             if (!input_files[ist->file_index].eof_reached){
2549                 if(ipts < ipts_min) {
2550                     ipts_min = ipts;
2551                     if(input_sync ) file_index = ist->file_index;
2552                 }
2553                 if(opts < opts_min) {
2554                     opts_min = opts;
2555                     if(!input_sync) file_index = ist->file_index;
2556                 }
2557             }
2558             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2559                 file_index= -1;
2560                 break;
2561             }
2562         }
2563         /* if none, if is finished */
2564         if (file_index < 0) {
2565             if(no_packet_count){
2566                 no_packet_count=0;
2567                 memset(no_packet, 0, sizeof(no_packet));
2568                 usleep(10000);
2569                 continue;
2570             }
2571             break;
2572         }
2573
2574         /* finish if limit size exhausted */
2575         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2576             break;
2577
2578         /* read a frame from it and output it in the fifo */
2579         is = input_files[file_index].ctx;
2580         ret= av_read_frame(is, &pkt);
2581         if(ret == AVERROR(EAGAIN)){
2582             no_packet[file_index]=1;
2583             no_packet_count++;
2584             continue;
2585         }
2586         if (ret < 0) {
2587             input_files[file_index].eof_reached = 1;
2588             if (opt_shortest)
2589                 break;
2590             else
2591                 continue;
2592         }
2593
2594         no_packet_count=0;
2595         memset(no_packet, 0, sizeof(no_packet));
2596
2597         if (do_pkt_dump) {
2598             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2599                              is->streams[pkt.stream_index]);
2600         }
2601         /* the following test is needed in case new streams appear
2602            dynamically in stream : we ignore them */
2603         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2604             goto discard_packet;
2605         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2606         ist = &input_streams[ist_index];
2607         if (ist->discard)
2608             goto discard_packet;
2609
2610         if (pkt.dts != AV_NOPTS_VALUE)
2611             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2612         if (pkt.pts != AV_NOPTS_VALUE)
2613             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2614
2615         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2616             && input_files_ts_scale[file_index][pkt.stream_index]){
2617             if(pkt.pts != AV_NOPTS_VALUE)
2618                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2619             if(pkt.dts != AV_NOPTS_VALUE)
2620                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2621         }
2622
2623 //        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);
2624         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2625             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2626             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2627             int64_t delta= pkt_dts - ist->next_pts;
2628             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2629                 input_files[ist->file_index].ts_offset -= delta;
2630                 if (verbose > 2)
2631                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2632                             delta, input_files[ist->file_index].ts_offset);
2633                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2634                 if(pkt.pts != AV_NOPTS_VALUE)
2635                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2636             }
2637         }
2638
2639         /* finish if recording time exhausted */
2640         if (recording_time != INT64_MAX &&
2641             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2642             ist->is_past_recording_time = 1;
2643             goto discard_packet;
2644         }
2645
2646         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2647         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2648
2649             if (verbose >= 0)
2650                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2651                         ist->file_index, ist->st->index);
2652             if (exit_on_error)
2653                 ffmpeg_exit(1);
2654             av_free_packet(&pkt);
2655             goto redo;
2656         }
2657
2658     discard_packet:
2659         av_free_packet(&pkt);
2660
2661         /* dump report by using the output first video and audio streams */
2662         print_report(output_files, ost_table, nb_ostreams, 0);
2663     }
2664
2665     /* at the end of stream, we must flush the decoder buffers */
2666     for (i = 0; i < nb_input_streams; i++) {
2667         ist = &input_streams[i];
2668         if (ist->decoding_needed) {
2669             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2670         }
2671     }
2672
2673     term_exit();
2674
2675     /* write the trailer if needed and close file */
2676     for(i=0;i<nb_output_files;i++) {
2677         os = output_files[i];
2678         av_write_trailer(os);
2679     }
2680
2681     /* dump report by using the first video and audio streams */
2682     print_report(output_files, ost_table, nb_ostreams, 1);
2683
2684     /* close each encoder */
2685     for(i=0;i<nb_ostreams;i++) {
2686         ost = ost_table[i];
2687         if (ost->encoding_needed) {
2688             av_freep(&ost->st->codec->stats_in);
2689             avcodec_close(ost->st->codec);
2690         }
2691 #if CONFIG_AVFILTER
2692         avfilter_graph_free(&ost->graph);
2693 #endif
2694     }
2695
2696     /* close each decoder */
2697     for (i = 0; i < nb_input_streams; i++) {
2698         ist = &input_streams[i];
2699         if (ist->decoding_needed) {
2700             avcodec_close(ist->st->codec);
2701         }
2702     }
2703
2704     /* finished ! */
2705     ret = 0;
2706
2707  fail:
2708     av_freep(&bit_buffer);
2709
2710     if (ost_table) {
2711         for(i=0;i<nb_ostreams;i++) {
2712             ost = ost_table[i];
2713             if (ost) {
2714                 if (ost->st->stream_copy)
2715                     av_freep(&ost->st->codec->extradata);
2716                 if (ost->logfile) {
2717                     fclose(ost->logfile);
2718                     ost->logfile = NULL;
2719                 }
2720                 av_fifo_free(ost->fifo); /* works even if fifo is not
2721                                              initialized but set to zero */
2722                 av_freep(&ost->st->codec->subtitle_header);
2723                 av_free(ost->pict_tmp.data[0]);
2724                 av_free(ost->forced_kf_pts);
2725                 if (ost->video_resample)
2726                     sws_freeContext(ost->img_resample_ctx);
2727                 if (ost->resample)
2728                     audio_resample_close(ost->resample);
2729                 if (ost->reformat_ctx)
2730                     av_audio_convert_free(ost->reformat_ctx);
2731                 av_free(ost);
2732             }
2733         }
2734         av_free(ost_table);
2735     }
2736     return ret;
2737 }
2738
2739 static int opt_format(const char *opt, const char *arg)
2740 {
2741     last_asked_format = arg;
2742     return 0;
2743 }
2744
2745 static int opt_video_rc_override_string(const char *opt, const char *arg)
2746 {
2747     video_rc_override_string = arg;
2748     return 0;
2749 }
2750
2751 static int opt_me_threshold(const char *opt, const char *arg)
2752 {
2753     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2754     return 0;
2755 }
2756
2757 static int opt_verbose(const char *opt, const char *arg)
2758 {
2759     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2760     return 0;
2761 }
2762
2763 static int opt_frame_rate(const char *opt, const char *arg)
2764 {
2765     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2766         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2767         ffmpeg_exit(1);
2768     }
2769     return 0;
2770 }
2771
2772 static int opt_bitrate(const char *opt, const char *arg)
2773 {
2774     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2775
2776     opt_default(opt, arg);
2777
2778     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2779         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2780
2781     return 0;
2782 }
2783
2784 static int opt_frame_crop(const char *opt, const char *arg)
2785 {
2786     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2787     return AVERROR(EINVAL);
2788 }
2789
2790 static int opt_frame_size(const char *opt, const char *arg)
2791 {
2792     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2793         fprintf(stderr, "Incorrect frame size\n");
2794         return AVERROR(EINVAL);
2795     }
2796     return 0;
2797 }
2798
2799 static int opt_pad(const char *opt, const char *arg) {
2800     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2801     return -1;
2802 }
2803
2804 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2805 {
2806     if (strcmp(arg, "list")) {
2807         frame_pix_fmt = av_get_pix_fmt(arg);
2808         if (frame_pix_fmt == PIX_FMT_NONE) {
2809             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2810             return AVERROR(EINVAL);
2811         }
2812     } else {
2813         show_pix_fmts();
2814         ffmpeg_exit(0);
2815     }
2816     return 0;
2817 }
2818
2819 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2820 {
2821     int x = 0, y = 0;
2822     double ar = 0;
2823     const char *p;
2824     char *end;
2825
2826     p = strchr(arg, ':');
2827     if (p) {
2828         x = strtol(arg, &end, 10);
2829         if (end == p)
2830             y = strtol(end+1, &end, 10);
2831         if (x > 0 && y > 0)
2832             ar = (double)x / (double)y;
2833     } else
2834         ar = strtod(arg, NULL);
2835
2836     if (!ar) {
2837         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2838         return AVERROR(EINVAL);
2839     }
2840     frame_aspect_ratio = ar;
2841     return 0;
2842 }
2843
2844 static int opt_metadata(const char *opt, const char *arg)
2845 {
2846     char *mid= strchr(arg, '=');
2847
2848     if(!mid){
2849         fprintf(stderr, "Missing =\n");
2850         ffmpeg_exit(1);
2851     }
2852     *mid++= 0;
2853
2854     av_dict_set(&metadata, arg, mid, 0);
2855
2856     return 0;
2857 }
2858
2859 static int opt_qscale(const char *opt, const char *arg)
2860 {
2861     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2862     if (video_qscale == 0) {
2863         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2864         return AVERROR(EINVAL);
2865     }
2866     return 0;
2867 }
2868
2869 static int opt_top_field_first(const char *opt, const char *arg)
2870 {
2871     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2872     return 0;
2873 }
2874
2875 static int opt_thread_count(const char *opt, const char *arg)
2876 {
2877     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2878 #if !HAVE_THREADS
2879     if (verbose >= 0)
2880         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2881 #endif
2882     return 0;
2883 }
2884
2885 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2886 {
2887     if (strcmp(arg, "list")) {
2888         audio_sample_fmt = av_get_sample_fmt(arg);
2889         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2890             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2891             return AVERROR(EINVAL);
2892         }
2893     } else {
2894         int i;
2895         char fmt_str[128];
2896         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2897             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2898         ffmpeg_exit(0);
2899     }
2900     return 0;
2901 }
2902
2903 static int opt_audio_rate(const char *opt, const char *arg)
2904 {
2905     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2906     return 0;
2907 }
2908
2909 static int opt_audio_channels(const char *opt, const char *arg)
2910 {
2911     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2912     return 0;
2913 }
2914
2915 static int opt_video_channel(const char *opt, const char *arg)
2916 {
2917     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2918     opt_default("channel", arg);
2919     return 0;
2920 }
2921
2922 static int opt_video_standard(const char *opt, const char *arg)
2923 {
2924     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2925     opt_default("standard", arg);
2926     return 0;
2927 }
2928
2929 static int opt_codec(int *pstream_copy, char **pcodec_name,
2930                       int codec_type, const char *arg)
2931 {
2932     av_freep(pcodec_name);
2933     if (!strcmp(arg, "copy")) {
2934         *pstream_copy = 1;
2935     } else {
2936         *pcodec_name = av_strdup(arg);
2937     }
2938     return 0;
2939 }
2940
2941 static int opt_audio_codec(const char *opt, const char *arg)
2942 {
2943     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2944 }
2945
2946 static int opt_video_codec(const char *opt, const char *arg)
2947 {
2948     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2949 }
2950
2951 static int opt_subtitle_codec(const char *opt, const char *arg)
2952 {
2953     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2954 }
2955
2956 static int opt_data_codec(const char *opt, const char *arg)
2957 {
2958     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2959 }
2960
2961 static int opt_codec_tag(const char *opt, const char *arg)
2962 {
2963     char *tail;
2964     uint32_t *codec_tag;
2965
2966     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2967                 !strcmp(opt, "vtag") ? &video_codec_tag :
2968                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2969     if (!codec_tag)
2970         return -1;
2971
2972     *codec_tag = strtol(arg, &tail, 0);
2973     if (!tail || *tail)
2974         *codec_tag = AV_RL32(arg);
2975
2976     return 0;
2977 }
2978
2979 static int opt_map(const char *opt, const char *arg)
2980 {
2981     StreamMap *m;
2982     char *p;
2983
2984     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2985     m = &stream_maps[nb_stream_maps-1];
2986
2987     m->file_index = strtol(arg, &p, 0);
2988     if (*p)
2989         p++;
2990
2991     m->stream_index = strtol(p, &p, 0);
2992     if (*p) {
2993         p++;
2994         m->sync_file_index = strtol(p, &p, 0);
2995         if (*p)
2996             p++;
2997         m->sync_stream_index = strtol(p, &p, 0);
2998     } else {
2999         m->sync_file_index = m->file_index;
3000         m->sync_stream_index = m->stream_index;
3001     }
3002     return 0;
3003 }
3004
3005 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3006 {
3007     *endptr = arg;
3008     if (*arg == ',') {
3009         *type = *(++arg);
3010         switch (*arg) {
3011         case 'g':
3012             break;
3013         case 's':
3014         case 'c':
3015         case 'p':
3016             *index = strtol(++arg, endptr, 0);
3017             break;
3018         default:
3019             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3020             ffmpeg_exit(1);
3021         }
3022     } else
3023         *type = 'g';
3024 }
3025
3026 static int opt_map_metadata(const char *opt, const char *arg)
3027 {
3028     MetadataMap *m, *m1;
3029     char *p;
3030
3031     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3032                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3033
3034     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3035     m->file = strtol(arg, &p, 0);
3036     parse_meta_type(p, &m->type, &m->index, &p);
3037     if (*p)
3038         p++;
3039
3040     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3041     m1->file = strtol(p, &p, 0);
3042     parse_meta_type(p, &m1->type, &m1->index, &p);
3043
3044     if (m->type == 'g' || m1->type == 'g')
3045         metadata_global_autocopy = 0;
3046     if (m->type == 's' || m1->type == 's')
3047         metadata_streams_autocopy = 0;
3048     if (m->type == 'c' || m1->type == 'c')
3049         metadata_chapters_autocopy = 0;
3050
3051     return 0;
3052 }
3053
3054 static int opt_map_meta_data(const char *opt, const char *arg)
3055 {
3056     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3057                     "Use -map_metadata instead.\n");
3058     return opt_map_metadata(opt, arg);
3059 }
3060
3061 static int opt_map_chapters(const char *opt, const char *arg)
3062 {
3063     ChapterMap *c;
3064     char *p;
3065
3066     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3067                               nb_chapter_maps + 1);
3068     c = &chapter_maps[nb_chapter_maps - 1];
3069     c->out_file = strtol(arg, &p, 0);
3070     if (*p)
3071         p++;
3072
3073     c->in_file = strtol(p, &p, 0);
3074     return 0;
3075 }
3076
3077 static int opt_input_ts_scale(const char *opt, const char *arg)
3078 {
3079     unsigned int stream;
3080     double scale;
3081     char *p;
3082
3083     stream = strtol(arg, &p, 0);
3084     if (*p)
3085         p++;
3086     scale= strtod(p, &p);
3087
3088     if(stream >= MAX_STREAMS)
3089         ffmpeg_exit(1);
3090
3091     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3092     input_files_ts_scale[nb_input_files][stream]= scale;
3093     return 0;
3094 }
3095
3096 static int opt_recording_time(const char *opt, const char *arg)
3097 {
3098     recording_time = parse_time_or_die(opt, arg, 1);
3099     return 0;
3100 }
3101
3102 static int opt_start_time(const char *opt, const char *arg)
3103 {
3104     start_time = parse_time_or_die(opt, arg, 1);
3105     return 0;
3106 }
3107
3108 static int opt_recording_timestamp(const char *opt, const char *arg)
3109 {
3110     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3111     return 0;
3112 }
3113
3114 static int opt_input_ts_offset(const char *opt, const char *arg)
3115 {
3116     input_ts_offset = parse_time_or_die(opt, arg, 1);
3117     return 0;
3118 }
3119
3120 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3121 {
3122     const char *codec_string = encoder ? "encoder" : "decoder";
3123     AVCodec *codec;
3124
3125     if(!name)
3126         return CODEC_ID_NONE;
3127     codec = encoder ?
3128         avcodec_find_encoder_by_name(name) :
3129         avcodec_find_decoder_by_name(name);
3130     if(!codec) {
3131         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3132         ffmpeg_exit(1);
3133     }
3134     if(codec->type != type) {
3135         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3136         ffmpeg_exit(1);
3137     }
3138     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3139        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3140         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3141                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3142                 codec_string, codec->name);
3143         codec = encoder ?
3144             avcodec_find_encoder(codec->id) :
3145             avcodec_find_decoder(codec->id);
3146         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3147             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3148                     codec_string, codec->name);
3149         ffmpeg_exit(1);
3150     }
3151     return codec->id;
3152 }
3153
3154 static int opt_input_file(const char *opt, const char *filename)
3155 {
3156     AVFormatContext *ic;
3157     AVInputFormat *file_iformat = NULL;
3158     int err, i, ret, rfps, rfps_base;
3159     int64_t timestamp;
3160     uint8_t buf[128];
3161
3162     if (last_asked_format) {
3163         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3164             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3165             ffmpeg_exit(1);
3166         }
3167         last_asked_format = NULL;
3168     }
3169
3170     if (!strcmp(filename, "-"))
3171         filename = "pipe:";
3172
3173     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3174                     !strcmp(filename, "/dev/stdin");
3175
3176     /* get default parameters from command line */
3177     ic = avformat_alloc_context();
3178     if (!ic) {
3179         print_error(filename, AVERROR(ENOMEM));
3180         ffmpeg_exit(1);
3181     }
3182     if (audio_sample_rate) {
3183         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3184         av_dict_set(&format_opts, "sample_rate", buf, 0);
3185     }
3186     if (audio_channels) {
3187         snprintf(buf, sizeof(buf), "%d", audio_channels);
3188         av_dict_set(&format_opts, "channels", buf, 0);
3189     }
3190     if (frame_rate.num) {
3191         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3192         av_dict_set(&format_opts, "framerate", buf, 0);
3193     }
3194     if (frame_width && frame_height) {
3195         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3196         av_dict_set(&format_opts, "video_size", buf, 0);
3197     }
3198     if (frame_pix_fmt != PIX_FMT_NONE)
3199         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3200
3201     ic->video_codec_id   =
3202         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3203                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3204     ic->audio_codec_id   =
3205         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3206                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3207     ic->subtitle_codec_id=
3208         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3209                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3210     ic->flags |= AVFMT_FLAG_NONBLOCK;
3211
3212     /* open the input file with generic libav function */
3213     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3214     if (err < 0) {
3215         print_error(filename, err);
3216         ffmpeg_exit(1);
3217     }
3218     assert_avoptions(format_opts);
3219
3220     if(opt_programid) {
3221         int i, j;
3222         int found=0;
3223         for(i=0; i<ic->nb_streams; i++){
3224             ic->streams[i]->discard= AVDISCARD_ALL;
3225         }
3226         for(i=0; i<ic->nb_programs; i++){
3227             AVProgram *p= ic->programs[i];
3228             if(p->id != opt_programid){
3229                 p->discard = AVDISCARD_ALL;
3230             }else{
3231                 found=1;
3232                 for(j=0; j<p->nb_stream_indexes; j++){
3233                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3234                 }
3235             }
3236         }
3237         if(!found){
3238             fprintf(stderr, "Specified program id not found\n");
3239             ffmpeg_exit(1);
3240         }
3241         opt_programid=0;
3242     }
3243
3244     if (loop_input) {
3245         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3246         ic->loop_input = loop_input;
3247     }
3248
3249     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3250     for (i = 0; i < ic->nb_streams; i++) {
3251         AVCodecContext *dec = ic->streams[i]->codec;
3252         switch (dec->codec_type) {
3253         case AVMEDIA_TYPE_AUDIO:
3254             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3255                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3256                              NULL);
3257             break;
3258         case AVMEDIA_TYPE_VIDEO:
3259             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3260                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3261                              NULL);
3262             break;
3263         }
3264     }
3265
3266     /* If not enough info to get the stream parameters, we decode the
3267        first frames to get it. (used in mpeg case for example) */
3268     ret = av_find_stream_info(ic);
3269     if (ret < 0 && verbose >= 0) {
3270         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3271         av_close_input_file(ic);
3272         ffmpeg_exit(1);
3273     }
3274
3275     timestamp = start_time;
3276     /* add the stream start time */
3277     if (ic->start_time != AV_NOPTS_VALUE)
3278         timestamp += ic->start_time;
3279
3280     /* if seeking requested, we execute it */
3281     if (start_time != 0) {
3282         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3283         if (ret < 0) {
3284             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3285                     filename, (double)timestamp / AV_TIME_BASE);
3286         }
3287         /* reset seek info */
3288         start_time = 0;
3289     }
3290
3291     /* update the current parameters so that they match the one of the input stream */
3292     for(i=0;i<ic->nb_streams;i++) {
3293         AVStream *st = ic->streams[i];
3294         AVCodecContext *dec = st->codec;
3295         InputStream *ist;
3296
3297         dec->thread_count = thread_count;
3298
3299         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3300         ist = &input_streams[nb_input_streams - 1];
3301         ist->st = st;
3302         ist->file_index = nb_input_files;
3303         ist->discard = 1;
3304
3305         switch (dec->codec_type) {
3306         case AVMEDIA_TYPE_AUDIO:
3307             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3308             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3309             channel_layout    = dec->channel_layout;
3310             audio_sample_fmt  = dec->sample_fmt;
3311             if(audio_disable)
3312                 st->discard= AVDISCARD_ALL;
3313             break;
3314         case AVMEDIA_TYPE_VIDEO:
3315             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3316             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3317             rfps      = ic->streams[i]->r_frame_rate.num;
3318             rfps_base = ic->streams[i]->r_frame_rate.den;
3319             if (dec->lowres) {
3320                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3321                 dec->height >>= dec->lowres;
3322                 dec->width  >>= dec->lowres;
3323             }
3324             if(me_threshold)
3325                 dec->debug |= FF_DEBUG_MV;
3326
3327             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3328
3329                 if (verbose >= 0)
3330                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3331                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3332
3333                     (float)rfps / rfps_base, rfps, rfps_base);
3334             }
3335
3336             if(video_disable)
3337                 st->discard= AVDISCARD_ALL;
3338             else if(video_discard)
3339                 st->discard= video_discard;
3340             break;
3341         case AVMEDIA_TYPE_DATA:
3342             break;
3343         case AVMEDIA_TYPE_SUBTITLE:
3344             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3345             if(subtitle_disable)
3346                 st->discard = AVDISCARD_ALL;
3347             break;
3348         case AVMEDIA_TYPE_ATTACHMENT:
3349         case AVMEDIA_TYPE_UNKNOWN:
3350             break;
3351         default:
3352             abort();
3353         }
3354     }
3355
3356     /* dump the file content */
3357     if (verbose >= 0)
3358         av_dump_format(ic, nb_input_files, filename, 0);
3359
3360     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3361     input_files[nb_input_files - 1].ctx        = ic;
3362     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3363     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3364
3365     frame_rate    = (AVRational){0, 0};
3366     frame_pix_fmt = PIX_FMT_NONE;
3367     frame_height = 0;
3368     frame_width  = 0;
3369     audio_sample_rate = 0;
3370     audio_channels    = 0;
3371
3372     av_freep(&video_codec_name);
3373     av_freep(&audio_codec_name);
3374     av_freep(&subtitle_codec_name);
3375     uninit_opts();
3376     init_opts();
3377     return 0;
3378 }
3379
3380 static void check_inputs(int *has_video_ptr,
3381                          int *has_audio_ptr,
3382                          int *has_subtitle_ptr,
3383                          int *has_data_ptr)
3384 {
3385     int has_video, has_audio, has_subtitle, has_data, i, j;
3386     AVFormatContext *ic;
3387
3388     has_video = 0;
3389     has_audio = 0;
3390     has_subtitle = 0;
3391     has_data = 0;
3392
3393     for(j=0;j<nb_input_files;j++) {
3394         ic = input_files[j].ctx;
3395         for(i=0;i<ic->nb_streams;i++) {
3396             AVCodecContext *enc = ic->streams[i]->codec;
3397             switch(enc->codec_type) {
3398             case AVMEDIA_TYPE_AUDIO:
3399                 has_audio = 1;
3400                 break;
3401             case AVMEDIA_TYPE_VIDEO:
3402                 has_video = 1;
3403                 break;
3404             case AVMEDIA_TYPE_SUBTITLE:
3405                 has_subtitle = 1;
3406                 break;
3407             case AVMEDIA_TYPE_DATA:
3408             case AVMEDIA_TYPE_ATTACHMENT:
3409             case AVMEDIA_TYPE_UNKNOWN:
3410                 has_data = 1;
3411                 break;
3412             default:
3413                 abort();
3414             }
3415         }
3416     }
3417     *has_video_ptr = has_video;
3418     *has_audio_ptr = has_audio;
3419     *has_subtitle_ptr = has_subtitle;
3420     *has_data_ptr = has_data;
3421 }
3422
3423 static void new_video_stream(AVFormatContext *oc, int file_idx)
3424 {
3425     AVStream *st;
3426     OutputStream *ost;
3427     AVCodecContext *video_enc;
3428     enum CodecID codec_id = CODEC_ID_NONE;
3429     AVCodec *codec= NULL;
3430
3431     if(!video_stream_copy){
3432         if (video_codec_name) {
3433             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3434                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3435             codec = avcodec_find_encoder_by_name(video_codec_name);
3436         } else {
3437             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3438             codec = avcodec_find_encoder(codec_id);
3439         }
3440     }
3441
3442     ost = new_output_stream(oc, file_idx, codec);
3443     st  = ost->st;
3444     if (!video_stream_copy) {
3445         ost->frame_aspect_ratio = frame_aspect_ratio;
3446         frame_aspect_ratio = 0;
3447 #if CONFIG_AVFILTER
3448         ost->avfilter= vfilters;
3449         vfilters = NULL;
3450 #endif
3451     }
3452
3453     ost->bitstream_filters = video_bitstream_filters;
3454     video_bitstream_filters= NULL;
3455
3456     st->codec->thread_count= thread_count;
3457
3458     video_enc = st->codec;
3459
3460     if(video_codec_tag)
3461         video_enc->codec_tag= video_codec_tag;
3462
3463     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3464         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3465         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3466     }
3467
3468     if (video_stream_copy) {
3469         st->stream_copy = 1;
3470         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3471         video_enc->sample_aspect_ratio =
3472         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3473     } else {
3474         const char *p;
3475         int i;
3476
3477         if (frame_rate.num)
3478             ost->frame_rate = frame_rate;
3479         video_enc->codec_id = codec_id;
3480         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3481
3482         video_enc->width = frame_width;
3483         video_enc->height = frame_height;
3484         video_enc->pix_fmt = frame_pix_fmt;
3485         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3486
3487         if (intra_only)
3488             video_enc->gop_size = 0;
3489         if (video_qscale || same_quality) {
3490             video_enc->flags |= CODEC_FLAG_QSCALE;
3491             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3492         }
3493
3494         if(intra_matrix)
3495             video_enc->intra_matrix = intra_matrix;
3496         if(inter_matrix)
3497             video_enc->inter_matrix = inter_matrix;
3498
3499         p= video_rc_override_string;
3500         for(i=0; p; i++){
3501             int start, end, q;
3502             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3503             if(e!=3){
3504                 fprintf(stderr, "error parsing rc_override\n");
3505                 ffmpeg_exit(1);
3506             }
3507             video_enc->rc_override=
3508                 av_realloc(video_enc->rc_override,
3509                            sizeof(RcOverride)*(i+1));
3510             video_enc->rc_override[i].start_frame= start;
3511             video_enc->rc_override[i].end_frame  = end;
3512             if(q>0){
3513                 video_enc->rc_override[i].qscale= q;
3514                 video_enc->rc_override[i].quality_factor= 1.0;
3515             }
3516             else{
3517                 video_enc->rc_override[i].qscale= 0;
3518                 video_enc->rc_override[i].quality_factor= -q/100.0;
3519             }
3520             p= strchr(p, '/');
3521             if(p) p++;
3522         }
3523         video_enc->rc_override_count=i;
3524         if (!video_enc->rc_initial_buffer_occupancy)
3525             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3526         video_enc->me_threshold= me_threshold;
3527         video_enc->intra_dc_precision= intra_dc_precision - 8;
3528
3529         if (do_psnr)
3530             video_enc->flags|= CODEC_FLAG_PSNR;
3531
3532         /* two pass mode */
3533         if (do_pass) {
3534             if (do_pass == 1) {
3535                 video_enc->flags |= CODEC_FLAG_PASS1;
3536             } else {
3537                 video_enc->flags |= CODEC_FLAG_PASS2;
3538             }
3539         }
3540
3541         if (forced_key_frames)
3542             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3543     }
3544     if (video_language) {
3545         av_dict_set(&st->metadata, "language", video_language, 0);
3546         av_freep(&video_language);
3547     }
3548
3549     /* reset some key parameters */
3550     video_disable = 0;
3551     av_freep(&video_codec_name);
3552     av_freep(&forced_key_frames);
3553     video_stream_copy = 0;
3554     frame_pix_fmt = PIX_FMT_NONE;
3555 }
3556
3557 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3558 {
3559     AVStream *st;
3560     OutputStream *ost;
3561     AVCodec *codec= NULL;
3562     AVCodecContext *audio_enc;
3563     enum CodecID codec_id = CODEC_ID_NONE;
3564
3565     if(!audio_stream_copy){
3566         if (audio_codec_name) {
3567             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3568                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3569             codec = avcodec_find_encoder_by_name(audio_codec_name);
3570         } else {
3571             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3572             codec = avcodec_find_encoder(codec_id);
3573         }
3574     }
3575     ost = new_output_stream(oc, file_idx, codec);
3576     st  = ost->st;
3577
3578     ost->bitstream_filters = audio_bitstream_filters;
3579     audio_bitstream_filters= NULL;
3580
3581     st->codec->thread_count= thread_count;
3582
3583     audio_enc = st->codec;
3584     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3585
3586     if(audio_codec_tag)
3587         audio_enc->codec_tag= audio_codec_tag;
3588
3589     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3590         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3591         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3592     }
3593     if (audio_stream_copy) {
3594         st->stream_copy = 1;
3595     } else {
3596         audio_enc->codec_id = codec_id;
3597         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3598
3599         if (audio_qscale > QSCALE_NONE) {
3600             audio_enc->flags |= CODEC_FLAG_QSCALE;
3601             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3602         }
3603         if (audio_channels)
3604             audio_enc->channels = audio_channels;
3605         audio_enc->sample_fmt = audio_sample_fmt;
3606         if (audio_sample_rate)
3607             audio_enc->sample_rate = audio_sample_rate;
3608         audio_enc->channel_layout = channel_layout;
3609         choose_sample_fmt(st, codec);
3610     }
3611     if (audio_language) {
3612         av_dict_set(&st->metadata, "language", audio_language, 0);
3613         av_freep(&audio_language);
3614     }
3615
3616     /* reset some key parameters */
3617     audio_disable = 0;
3618     av_freep(&audio_codec_name);
3619     audio_stream_copy = 0;
3620 }
3621
3622 static void new_data_stream(AVFormatContext *oc, int file_idx)
3623 {
3624     AVStream *st;
3625     OutputStream *ost;
3626     AVCodecContext *data_enc;
3627
3628     ost = new_output_stream(oc, file_idx, NULL);
3629     st  = ost->st;
3630     data_enc = st->codec;
3631     if (!data_stream_copy) {
3632         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3633         ffmpeg_exit(1);
3634     }
3635
3636     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3637
3638     if (data_codec_tag)
3639         data_enc->codec_tag= data_codec_tag;
3640
3641     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3642         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3643         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;