h264_parser: Fix whitespace after previous change.
[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/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavformat/os_support.h"
47
48 #if CONFIG_AVFILTER
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #include <time.h>
71
72 #include "cmdutils.h"
73
74 #include "libavutil/avassert.h"
75
76 const char program_name[] = "ffmpeg";
77 const int program_birth_year = 2000;
78
79 /* select an input stream for an output stream */
80 typedef struct AVStreamMap {
81     int file_index;
82     int stream_index;
83     int sync_file_index;
84     int sync_stream_index;
85 } AVStreamMap;
86
87 /**
88  * select an input file for an output file
89  */
90 typedef struct AVMetaDataMap {
91     int  file;      //< file index
92     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
93     int  index;     //< stream/chapter/program number
94 } AVMetaDataMap;
95
96 typedef struct AVChapterMap {
97     int in_file;
98     int out_file;
99 } AVChapterMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
105
106 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
107
108 static const char *last_asked_format = NULL;
109 static int64_t input_files_ts_offset[MAX_FILES];
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static AVCodec **input_codecs = NULL;
112 static int nb_input_codecs = 0;
113 static int nb_input_files_ts_scale[MAX_FILES] = {0};
114
115 static AVFormatContext *output_files[MAX_FILES];
116 static AVCodec **output_codecs = NULL;
117 static int nb_output_files = 0;
118 static int nb_output_codecs = 0;
119
120 static AVStreamMap *stream_maps = NULL;
121 static int nb_stream_maps;
122
123 /* first item specifies output metadata, second is input */
124 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
125 static int nb_meta_data_maps;
126 static int metadata_global_autocopy   = 1;
127 static int metadata_streams_autocopy  = 1;
128 static int metadata_chapters_autocopy = 1;
129
130 static AVChapterMap *chapter_maps = NULL;
131 static int nb_chapter_maps;
132
133 /* indexed by output file stream index */
134 static int *streamid_map = NULL;
135 static int nb_streamid_map = 0;
136
137 static int frame_width  = 0;
138 static int frame_height = 0;
139 static float frame_aspect_ratio = 0;
140 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
141 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
142 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
143 static AVRational frame_rate;
144 static float video_qscale = 0;
145 static uint16_t *intra_matrix = NULL;
146 static uint16_t *inter_matrix = NULL;
147 static const char *video_rc_override_string=NULL;
148 static int video_disable = 0;
149 static int video_discard = 0;
150 static char *video_codec_name = NULL;
151 static unsigned int video_codec_tag = 0;
152 static char *video_language = NULL;
153 static int same_quality = 0;
154 static int do_deinterlace = 0;
155 static int top_field_first = -1;
156 static int me_threshold = 0;
157 static int intra_dc_precision = 8;
158 static int loop_input = 0;
159 static int loop_output = AVFMT_NOOUTPUTLOOP;
160 static int qp_hist = 0;
161 #if CONFIG_AVFILTER
162 static char *vfilters = NULL;
163 #endif
164
165 static int intra_only = 0;
166 static int audio_sample_rate = 44100;
167 static int64_t channel_layout = 0;
168 #define QSCALE_NONE -99999
169 static float audio_qscale = QSCALE_NONE;
170 static int audio_disable = 0;
171 static int audio_channels = 1;
172 static char  *audio_codec_name = NULL;
173 static unsigned int audio_codec_tag = 0;
174 static char *audio_language = NULL;
175
176 static int subtitle_disable = 0;
177 static char *subtitle_codec_name = NULL;
178 static char *subtitle_language = NULL;
179 static unsigned int subtitle_codec_tag = 0;
180
181 static int data_disable = 0;
182 static char *data_codec_name = NULL;
183 static unsigned int data_codec_tag = 0;
184
185 static float mux_preload= 0.5;
186 static float mux_max_delay= 0.7;
187
188 static int64_t recording_time = INT64_MAX;
189 static int64_t start_time = 0;
190 static int64_t recording_timestamp = 0;
191 static int64_t input_ts_offset = 0;
192 static int file_overwrite = 0;
193 static AVDictionary *metadata;
194 static int do_benchmark = 0;
195 static int do_hex_dump = 0;
196 static int do_pkt_dump = 0;
197 static int do_psnr = 0;
198 static int do_pass = 0;
199 static char *pass_logfilename_prefix = NULL;
200 static int audio_stream_copy = 0;
201 static int video_stream_copy = 0;
202 static int subtitle_stream_copy = 0;
203 static int data_stream_copy = 0;
204 static int video_sync_method= -1;
205 static int audio_sync_method= 0;
206 static float audio_drift_threshold= 0.1;
207 static int copy_ts= 0;
208 static int copy_tb;
209 static int opt_shortest = 0;
210 static char *vstats_filename;
211 static FILE *vstats_file;
212 static int opt_programid = 0;
213 static int copy_initial_nonkeyframes = 0;
214
215 static int rate_emu = 0;
216
217 static int  video_channel = 0;
218 static char *video_standard;
219
220 static int audio_volume = 256;
221
222 static int exit_on_error = 0;
223 static int using_stdin = 0;
224 static int verbose = 1;
225 static int thread_count= 1;
226 static int64_t video_size = 0;
227 static int64_t audio_size = 0;
228 static int64_t extra_size = 0;
229 static int nb_frames_dup = 0;
230 static int nb_frames_drop = 0;
231 static int input_sync;
232 static uint64_t limit_filesize = 0;
233 static int force_fps = 0;
234 static char *forced_key_frames = NULL;
235
236 static float dts_delta_threshold = 10;
237
238 static int64_t timer_start;
239
240 static uint8_t *audio_buf;
241 static uint8_t *audio_out;
242 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
243
244 static short *samples;
245
246 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
247 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
248 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
249
250 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
251
252 struct AVInputStream;
253
254 typedef struct AVOutputStream {
255     int file_index;          /* file index */
256     int index;               /* stream index in the output file */
257     int source_index;        /* AVInputStream index */
258     AVStream *st;            /* stream in the output file */
259     int encoding_needed;     /* true if encoding needed for this stream */
260     int frame_number;
261     /* input pts and corresponding output pts
262        for A/V sync */
263     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
264     struct AVInputStream *sync_ist; /* input stream to sync against */
265     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
266     AVBitStreamFilterContext *bitstream_filters;
267     /* video only */
268     int video_resample;
269     AVFrame pict_tmp;      /* temporary image for resampling */
270     struct SwsContext *img_resample_ctx; /* for image resampling */
271     int resample_height;
272     int resample_width;
273     int resample_pix_fmt;
274
275     float frame_aspect_ratio;
276
277     /* forced key frames */
278     int64_t *forced_kf_pts;
279     int forced_kf_count;
280     int forced_kf_index;
281
282     /* audio only */
283     int audio_resample;
284     ReSampleContext *resample; /* for audio resampling */
285     int resample_sample_fmt;
286     int resample_channels;
287     int resample_sample_rate;
288     int reformat_pair;
289     AVAudioConvert *reformat_ctx;
290     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
291     FILE *logfile;
292
293 #if CONFIG_AVFILTER
294     AVFilterContext *output_video_filter;
295     AVFilterContext *input_video_filter;
296     AVFilterBufferRef *picref;
297     char *avfilter;
298     AVFilterGraph *graph;
299 #endif
300
301    int sws_flags;
302 } AVOutputStream;
303
304 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
305 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
306
307 typedef struct AVInputStream {
308     int file_index;
309     AVStream *st;
310     int discard;             /* true if stream data should be discarded */
311     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
312     int64_t sample_index;      /* current sample */
313
314     int64_t       start;     /* time when read started */
315     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
316                                 is not defined */
317     int64_t       pts;       /* current pts */
318     PtsCorrectionContext pts_ctx;
319     int is_start;            /* is 1 at the start and after a discontinuity */
320     int showed_multi_packet_warning;
321     int is_past_recording_time;
322 #if CONFIG_AVFILTER
323     AVFrame *filter_frame;
324     int has_filter_frame;
325 #endif
326 } AVInputStream;
327
328 typedef struct AVInputFile {
329     AVFormatContext *ctx;
330     int eof_reached;      /* true if eof reached */
331     int ist_index;        /* index of first stream in ist_table */
332     int buffer_size;      /* current total buffer size */
333 } AVInputFile;
334
335 static AVInputStream *input_streams = NULL;
336 static int         nb_input_streams = 0;
337 static AVInputFile   *input_files   = NULL;
338 static int         nb_input_files   = 0;
339
340 #if CONFIG_AVFILTER
341
342 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
343 {
344     AVFilterContext *last_filter, *filter;
345     /** filter graph containing all filters including input & output */
346     AVCodecContext *codec = ost->st->codec;
347     AVCodecContext *icodec = ist->st->codec;
348     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
349     AVRational sample_aspect_ratio;
350     char args[255];
351     int ret;
352
353     ost->graph = avfilter_graph_alloc();
354
355     if (ist->st->sample_aspect_ratio.num){
356         sample_aspect_ratio = ist->st->sample_aspect_ratio;
357     }else
358         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
359
360     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
361              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
362              sample_aspect_ratio.num, sample_aspect_ratio.den);
363
364     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
365                                        "src", args, NULL, ost->graph);
366     if (ret < 0)
367         return ret;
368     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
369                                        "out", NULL, &ffsink_ctx, ost->graph);
370     if (ret < 0)
371         return ret;
372     last_filter = ost->input_video_filter;
373
374     if (codec->width  != icodec->width || codec->height != icodec->height) {
375         snprintf(args, 255, "%d:%d:flags=0x%X",
376                  codec->width,
377                  codec->height,
378                  ost->sws_flags);
379         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380                                                 NULL, args, NULL, ost->graph)) < 0)
381             return ret;
382         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
383             return ret;
384         last_filter = filter;
385     }
386
387     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
388     ost->graph->scale_sws_opts = av_strdup(args);
389
390     if (ost->avfilter) {
391         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
392         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
393
394         outputs->name    = av_strdup("in");
395         outputs->filter_ctx = last_filter;
396         outputs->pad_idx = 0;
397         outputs->next    = NULL;
398
399         inputs->name    = av_strdup("out");
400         inputs->filter_ctx = ost->output_video_filter;
401         inputs->pad_idx = 0;
402         inputs->next    = NULL;
403
404         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
405             return ret;
406         av_freep(&ost->avfilter);
407     } else {
408         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
409             return ret;
410     }
411
412     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
413         return ret;
414
415     codec->width  = ost->output_video_filter->inputs[0]->w;
416     codec->height = ost->output_video_filter->inputs[0]->h;
417     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
418         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
419         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
420         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
421
422     return 0;
423 }
424 #endif /* CONFIG_AVFILTER */
425
426 static void term_exit(void)
427 {
428     av_log(NULL, AV_LOG_QUIET, "");
429 }
430
431 static volatile int received_sigterm = 0;
432 static volatile int received_nb_signals = 0;
433
434 static void
435 sigterm_handler(int sig)
436 {
437     received_sigterm = sig;
438     received_nb_signals++;
439     term_exit();
440 }
441
442 static void term_init(void)
443 {
444     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
445     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
446 #ifdef SIGXCPU
447     signal(SIGXCPU, sigterm_handler);
448 #endif
449 }
450
451 static int decode_interrupt_cb(void)
452 {
453     return received_nb_signals > 1;
454 }
455
456 static int ffmpeg_exit(int ret)
457 {
458     int i;
459
460     /* close files */
461     for(i=0;i<nb_output_files;i++) {
462         AVFormatContext *s = output_files[i];
463         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
464             avio_close(s->pb);
465         avformat_free_context(s);
466         av_free(output_streams_for_file[i]);
467     }
468     for(i=0;i<nb_input_files;i++) {
469         av_close_input_file(input_files[i].ctx);
470         av_free(input_files_ts_scale[i]);
471     }
472
473     av_free(intra_matrix);
474     av_free(inter_matrix);
475
476     if (vstats_file)
477         fclose(vstats_file);
478     av_free(vstats_filename);
479
480     av_free(streamid_map);
481     av_free(input_codecs);
482     av_free(output_codecs);
483     av_free(stream_maps);
484     av_free(meta_data_maps);
485
486     av_freep(&input_streams);
487     av_freep(&input_files);
488
489     av_free(video_codec_name);
490     av_free(audio_codec_name);
491     av_free(subtitle_codec_name);
492     av_free(data_codec_name);
493
494     av_free(video_standard);
495
496     uninit_opts();
497     av_free(audio_buf);
498     av_free(audio_out);
499     allocated_audio_buf_size= allocated_audio_out_size= 0;
500     av_free(samples);
501
502 #if CONFIG_AVFILTER
503     avfilter_uninit();
504 #endif
505
506     if (received_sigterm) {
507         fprintf(stderr,
508             "Received signal %d: terminating.\n",
509             (int) received_sigterm);
510         exit (255);
511     }
512
513     exit(ret); /* not all OS-es handle main() return value */
514     return ret;
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 AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
644 {
645     int idx = oc->nb_streams - 1;
646     AVOutputStream *ost;
647
648     output_streams_for_file[file_idx] =
649         grow_array(output_streams_for_file[file_idx],
650                    sizeof(*output_streams_for_file[file_idx]),
651                    &nb_output_streams_for_file[file_idx],
652                    oc->nb_streams);
653     ost = output_streams_for_file[file_idx][idx] =
654         av_mallocz(sizeof(AVOutputStream));
655     if (!ost) {
656         fprintf(stderr, "Could not alloc output stream\n");
657         ffmpeg_exit(1);
658     }
659     ost->file_index = file_idx;
660     ost->index = idx;
661
662     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
663     return ost;
664 }
665
666 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
667 {
668     int i, err;
669     AVFormatContext *ic;
670     int nopts = 0;
671
672     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
673     if (err < 0)
674         return err;
675     /* copy stream format */
676     s->nb_streams = 0;
677     s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
678     for(i=0;i<ic->nb_streams;i++) {
679         AVStream *st;
680         AVCodec *codec;
681
682         s->nb_streams++;
683
684         // FIXME: a more elegant solution is needed
685         st = av_mallocz(sizeof(AVStream));
686         memcpy(st, ic->streams[i], sizeof(AVStream));
687         st->codec = avcodec_alloc_context();
688         if (!st->codec) {
689             print_error(filename, AVERROR(ENOMEM));
690             ffmpeg_exit(1);
691         }
692         avcodec_copy_context(st->codec, ic->streams[i]->codec);
693         s->streams[i] = st;
694
695         codec = avcodec_find_encoder(st->codec->codec_id);
696         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
697             if (audio_stream_copy) {
698                 st->stream_copy = 1;
699             } else
700                 choose_sample_fmt(st, codec);
701         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
702             if (video_stream_copy) {
703                 st->stream_copy = 1;
704             } else
705                 choose_pixel_fmt(st, codec);
706         }
707
708         if(st->codec->flags & CODEC_FLAG_BITEXACT)
709             nopts = 1;
710
711         new_output_stream(s, nb_output_files);
712     }
713
714     if (!nopts)
715         s->timestamp = av_gettime();
716
717     av_close_input_file(ic);
718     return 0;
719 }
720
721 static double
722 get_sync_ipts(const AVOutputStream *ost)
723 {
724     const AVInputStream *ist = ost->sync_ist;
725     return (double)(ist->pts - start_time)/AV_TIME_BASE;
726 }
727
728 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
729     int ret;
730
731     while(bsfc){
732         AVPacket new_pkt= *pkt;
733         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
734                                           &new_pkt.data, &new_pkt.size,
735                                           pkt->data, pkt->size,
736                                           pkt->flags & AV_PKT_FLAG_KEY);
737         if(a>0){
738             av_free_packet(pkt);
739             new_pkt.destruct= av_destruct_packet;
740         } else if(a<0){
741             fprintf(stderr, "%s failed for stream %d, codec %s",
742                     bsfc->filter->name, pkt->stream_index,
743                     avctx->codec ? avctx->codec->name : "copy");
744             print_error("", a);
745             if (exit_on_error)
746                 ffmpeg_exit(1);
747         }
748         *pkt= new_pkt;
749
750         bsfc= bsfc->next;
751     }
752
753     ret= av_interleaved_write_frame(s, pkt);
754     if(ret < 0){
755         print_error("av_interleaved_write_frame()", ret);
756         ffmpeg_exit(1);
757     }
758 }
759
760 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
761
762 static void do_audio_out(AVFormatContext *s,
763                          AVOutputStream *ost,
764                          AVInputStream *ist,
765                          unsigned char *buf, int size)
766 {
767     uint8_t *buftmp;
768     int64_t audio_out_size, audio_buf_size;
769     int64_t allocated_for_size= size;
770
771     int size_out, frame_bytes, ret, resample_changed;
772     AVCodecContext *enc= ost->st->codec;
773     AVCodecContext *dec= ist->st->codec;
774     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
775     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
776     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
777
778 need_realloc:
779     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
780     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
781     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
782     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
783     audio_buf_size*= osize*enc->channels;
784
785     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
786     if(coded_bps > 8*osize)
787         audio_out_size= audio_out_size * coded_bps / (8*osize);
788     audio_out_size += FF_MIN_BUFFER_SIZE;
789
790     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
791         fprintf(stderr, "Buffer sizes too large\n");
792         ffmpeg_exit(1);
793     }
794
795     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
796     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
797     if (!audio_buf || !audio_out){
798         fprintf(stderr, "Out of memory in do_audio_out\n");
799         ffmpeg_exit(1);
800     }
801
802     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
803         ost->audio_resample = 1;
804
805     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
806                        ost->resample_channels    != dec->channels   ||
807                        ost->resample_sample_rate != dec->sample_rate;
808
809     if ((ost->audio_resample && !ost->resample) || resample_changed) {
810         if (resample_changed) {
811             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",
812                    ist->file_index, ist->st->index,
813                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
814                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
815             ost->resample_sample_fmt  = dec->sample_fmt;
816             ost->resample_channels    = dec->channels;
817             ost->resample_sample_rate = dec->sample_rate;
818             if (ost->resample)
819                 audio_resample_close(ost->resample);
820         }
821         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
822         if (audio_sync_method <= 1 &&
823             ost->resample_sample_fmt  == enc->sample_fmt &&
824             ost->resample_channels    == enc->channels   &&
825             ost->resample_sample_rate == enc->sample_rate) {
826             ost->resample = NULL;
827             ost->audio_resample = 0;
828         } else if (ost->audio_resample) {
829             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
830                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
831             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
832                                                    enc->sample_rate, dec->sample_rate,
833                                                    enc->sample_fmt,  dec->sample_fmt,
834                                                    16, 10, 0, 0.8);
835             if (!ost->resample) {
836                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
837                         dec->channels, dec->sample_rate,
838                         enc->channels, enc->sample_rate);
839                 ffmpeg_exit(1);
840             }
841         }
842     }
843
844 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
845     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
846         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
847         if (ost->reformat_ctx)
848             av_audio_convert_free(ost->reformat_ctx);
849         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
850                                                    dec->sample_fmt, 1, NULL, 0);
851         if (!ost->reformat_ctx) {
852             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
853                 av_get_sample_fmt_name(dec->sample_fmt),
854                 av_get_sample_fmt_name(enc->sample_fmt));
855             ffmpeg_exit(1);
856         }
857         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
858     }
859
860     if(audio_sync_method){
861         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
862                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
863         double idelta= delta*dec->sample_rate / enc->sample_rate;
864         int byte_delta= ((int)idelta)*2*dec->channels;
865
866         //FIXME resample delay
867         if(fabs(delta) > 50){
868             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
869                 if(byte_delta < 0){
870                     byte_delta= FFMAX(byte_delta, -size);
871                     size += byte_delta;
872                     buf  -= byte_delta;
873                     if(verbose > 2)
874                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
875                     if(!size)
876                         return;
877                     ist->is_start=0;
878                 }else{
879                     static uint8_t *input_tmp= NULL;
880                     input_tmp= av_realloc(input_tmp, byte_delta + size);
881
882                     if(byte_delta > allocated_for_size - size){
883                         allocated_for_size= byte_delta + (int64_t)size;
884                         goto need_realloc;
885                     }
886                     ist->is_start=0;
887
888                     memset(input_tmp, 0, byte_delta);
889                     memcpy(input_tmp + byte_delta, buf, size);
890                     buf= input_tmp;
891                     size += byte_delta;
892                     if(verbose > 2)
893                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
894                 }
895             }else if(audio_sync_method>1){
896                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
897                 av_assert0(ost->audio_resample);
898                 if(verbose > 2)
899                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
900 //                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));
901                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
902             }
903         }
904     }else
905         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
906                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
907
908     if (ost->audio_resample) {
909         buftmp = audio_buf;
910         size_out = audio_resample(ost->resample,
911                                   (short *)buftmp, (short *)buf,
912                                   size / (dec->channels * isize));
913         size_out = size_out * enc->channels * osize;
914     } else {
915         buftmp = buf;
916         size_out = size;
917     }
918
919     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
920         const void *ibuf[6]= {buftmp};
921         void *obuf[6]= {audio_buf};
922         int istride[6]= {isize};
923         int ostride[6]= {osize};
924         int len= size_out/istride[0];
925         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
926             printf("av_audio_convert() failed\n");
927             if (exit_on_error)
928                 ffmpeg_exit(1);
929             return;
930         }
931         buftmp = audio_buf;
932         size_out = len*osize;
933     }
934
935     /* now encode as many frames as possible */
936     if (enc->frame_size > 1) {
937         /* output resampled raw samples */
938         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
939             fprintf(stderr, "av_fifo_realloc2() failed\n");
940             ffmpeg_exit(1);
941         }
942         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
943
944         frame_bytes = enc->frame_size * osize * enc->channels;
945
946         while (av_fifo_size(ost->fifo) >= frame_bytes) {
947             AVPacket pkt;
948             av_init_packet(&pkt);
949
950             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
951
952             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
953
954             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
955                                        (short *)audio_buf);
956             if (ret < 0) {
957                 fprintf(stderr, "Audio encoding failed\n");
958                 ffmpeg_exit(1);
959             }
960             audio_size += ret;
961             pkt.stream_index= ost->index;
962             pkt.data= audio_out;
963             pkt.size= ret;
964             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
965                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
966             pkt.flags |= AV_PKT_FLAG_KEY;
967             write_frame(s, &pkt, enc, ost->bitstream_filters);
968
969             ost->sync_opts += enc->frame_size;
970         }
971     } else {
972         AVPacket pkt;
973         av_init_packet(&pkt);
974
975         ost->sync_opts += size_out / (osize * enc->channels);
976
977         /* output a pcm frame */
978         /* determine the size of the coded buffer */
979         size_out /= osize;
980         if (coded_bps)
981             size_out = size_out*coded_bps/8;
982
983         if(size_out > audio_out_size){
984             fprintf(stderr, "Internal error, buffer size too small\n");
985             ffmpeg_exit(1);
986         }
987
988         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
989         ret = avcodec_encode_audio(enc, audio_out, size_out,
990                                    (short *)buftmp);
991         if (ret < 0) {
992             fprintf(stderr, "Audio encoding failed\n");
993             ffmpeg_exit(1);
994         }
995         audio_size += ret;
996         pkt.stream_index= ost->index;
997         pkt.data= audio_out;
998         pkt.size= ret;
999         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1000             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1001         pkt.flags |= AV_PKT_FLAG_KEY;
1002         write_frame(s, &pkt, enc, ost->bitstream_filters);
1003     }
1004 }
1005
1006 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1007 {
1008     AVCodecContext *dec;
1009     AVPicture *picture2;
1010     AVPicture picture_tmp;
1011     uint8_t *buf = 0;
1012
1013     dec = ist->st->codec;
1014
1015     /* deinterlace : must be done before any resize */
1016     if (do_deinterlace) {
1017         int size;
1018
1019         /* create temporary picture */
1020         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1021         buf = av_malloc(size);
1022         if (!buf)
1023             return;
1024
1025         picture2 = &picture_tmp;
1026         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1027
1028         if(avpicture_deinterlace(picture2, picture,
1029                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1030             /* if error, do not deinterlace */
1031             fprintf(stderr, "Deinterlacing failed\n");
1032             av_free(buf);
1033             buf = NULL;
1034             picture2 = picture;
1035         }
1036     } else {
1037         picture2 = picture;
1038     }
1039
1040     if (picture != picture2)
1041         *picture = *picture2;
1042     *bufp = buf;
1043 }
1044
1045 /* we begin to correct av delay at this threshold */
1046 #define AV_DELAY_MAX 0.100
1047
1048 static void do_subtitle_out(AVFormatContext *s,
1049                             AVOutputStream *ost,
1050                             AVInputStream *ist,
1051                             AVSubtitle *sub,
1052                             int64_t pts)
1053 {
1054     static uint8_t *subtitle_out = NULL;
1055     int subtitle_out_max_size = 1024 * 1024;
1056     int subtitle_out_size, nb, i;
1057     AVCodecContext *enc;
1058     AVPacket pkt;
1059
1060     if (pts == AV_NOPTS_VALUE) {
1061         fprintf(stderr, "Subtitle packets must have a pts\n");
1062         if (exit_on_error)
1063             ffmpeg_exit(1);
1064         return;
1065     }
1066
1067     enc = ost->st->codec;
1068
1069     if (!subtitle_out) {
1070         subtitle_out = av_malloc(subtitle_out_max_size);
1071     }
1072
1073     /* Note: DVB subtitle need one packet to draw them and one other
1074        packet to clear them */
1075     /* XXX: signal it in the codec context ? */
1076     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1077         nb = 2;
1078     else
1079         nb = 1;
1080
1081     for(i = 0; i < nb; i++) {
1082         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1083         // start_display_time is required to be 0
1084         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1085         sub->end_display_time -= sub->start_display_time;
1086         sub->start_display_time = 0;
1087         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1088                                                     subtitle_out_max_size, sub);
1089         if (subtitle_out_size < 0) {
1090             fprintf(stderr, "Subtitle encoding failed\n");
1091             ffmpeg_exit(1);
1092         }
1093
1094         av_init_packet(&pkt);
1095         pkt.stream_index = ost->index;
1096         pkt.data = subtitle_out;
1097         pkt.size = subtitle_out_size;
1098         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1099         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1100             /* XXX: the pts correction is handled here. Maybe handling
1101                it in the codec would be better */
1102             if (i == 0)
1103                 pkt.pts += 90 * sub->start_display_time;
1104             else
1105                 pkt.pts += 90 * sub->end_display_time;
1106         }
1107         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1108     }
1109 }
1110
1111 static int bit_buffer_size= 1024*256;
1112 static uint8_t *bit_buffer= NULL;
1113
1114 static void do_video_out(AVFormatContext *s,
1115                          AVOutputStream *ost,
1116                          AVInputStream *ist,
1117                          AVFrame *in_picture,
1118                          int *frame_size)
1119 {
1120     int nb_frames, i, ret, resample_changed;
1121     AVFrame *final_picture, *formatted_picture;
1122     AVCodecContext *enc, *dec;
1123     double sync_ipts;
1124
1125     enc = ost->st->codec;
1126     dec = ist->st->codec;
1127
1128     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1129
1130     /* by default, we output a single frame */
1131     nb_frames = 1;
1132
1133     *frame_size = 0;
1134
1135     if(video_sync_method){
1136         double vdelta = sync_ipts - ost->sync_opts;
1137         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1138         if (vdelta < -1.1)
1139             nb_frames = 0;
1140         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1141             if(vdelta<=-0.6){
1142                 nb_frames=0;
1143             }else if(vdelta>0.6)
1144                 ost->sync_opts= lrintf(sync_ipts);
1145         }else if (vdelta > 1.1)
1146             nb_frames = lrintf(vdelta);
1147 //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);
1148         if (nb_frames == 0){
1149             ++nb_frames_drop;
1150             if (verbose>2)
1151                 fprintf(stderr, "*** drop!\n");
1152         }else if (nb_frames > 1) {
1153             nb_frames_dup += nb_frames - 1;
1154             if (verbose>2)
1155                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1156         }
1157     }else
1158         ost->sync_opts= lrintf(sync_ipts);
1159
1160     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1161     if (nb_frames <= 0)
1162         return;
1163
1164     formatted_picture = in_picture;
1165     final_picture = formatted_picture;
1166
1167     resample_changed = ost->resample_width   != dec->width  ||
1168                        ost->resample_height  != dec->height ||
1169                        ost->resample_pix_fmt != dec->pix_fmt;
1170
1171     if (resample_changed) {
1172         av_log(NULL, AV_LOG_INFO,
1173                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1174                ist->file_index, ist->st->index,
1175                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1176                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1177         if(!ost->video_resample)
1178             ffmpeg_exit(1);
1179     }
1180
1181 #if !CONFIG_AVFILTER
1182     if (ost->video_resample) {
1183         final_picture = &ost->pict_tmp;
1184         if (resample_changed) {
1185             /* initialize a new scaler context */
1186             sws_freeContext(ost->img_resample_ctx);
1187             ost->img_resample_ctx = sws_getContext(
1188                 ist->st->codec->width,
1189                 ist->st->codec->height,
1190                 ist->st->codec->pix_fmt,
1191                 ost->st->codec->width,
1192                 ost->st->codec->height,
1193                 ost->st->codec->pix_fmt,
1194                 ost->sws_flags, NULL, NULL, NULL);
1195             if (ost->img_resample_ctx == NULL) {
1196                 fprintf(stderr, "Cannot get resampling context\n");
1197                 ffmpeg_exit(1);
1198             }
1199         }
1200         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1201               0, ost->resample_height, final_picture->data, final_picture->linesize);
1202     }
1203 #endif
1204
1205     /* duplicates frame if needed */
1206     for(i=0;i<nb_frames;i++) {
1207         AVPacket pkt;
1208         av_init_packet(&pkt);
1209         pkt.stream_index= ost->index;
1210
1211         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1212             /* raw pictures are written as AVPicture structure to
1213                avoid any copies. We support temorarily the older
1214                method. */
1215             AVFrame* old_frame = enc->coded_frame;
1216             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1217             pkt.data= (uint8_t *)final_picture;
1218             pkt.size=  sizeof(AVPicture);
1219             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1220             pkt.flags |= AV_PKT_FLAG_KEY;
1221
1222             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1223             enc->coded_frame = old_frame;
1224         } else {
1225             AVFrame big_picture;
1226
1227             big_picture= *final_picture;
1228             /* better than nothing: use input picture interlaced
1229                settings */
1230             big_picture.interlaced_frame = in_picture->interlaced_frame;
1231             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1232                 if(top_field_first == -1)
1233                     big_picture.top_field_first = in_picture->top_field_first;
1234                 else
1235                     big_picture.top_field_first = top_field_first;
1236             }
1237
1238             /* handles sameq here. This is not correct because it may
1239                not be a global option */
1240             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1241             if(!me_threshold)
1242                 big_picture.pict_type = 0;
1243 //            big_picture.pts = AV_NOPTS_VALUE;
1244             big_picture.pts= ost->sync_opts;
1245 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1246 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1247             if (ost->forced_kf_index < ost->forced_kf_count &&
1248                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1249                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1250                 ost->forced_kf_index++;
1251             }
1252             ret = avcodec_encode_video(enc,
1253                                        bit_buffer, bit_buffer_size,
1254                                        &big_picture);
1255             if (ret < 0) {
1256                 fprintf(stderr, "Video encoding failed\n");
1257                 ffmpeg_exit(1);
1258             }
1259
1260             if(ret>0){
1261                 pkt.data= bit_buffer;
1262                 pkt.size= ret;
1263                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1264                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1265 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1266    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1267    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1268
1269                 if(enc->coded_frame->key_frame)
1270                     pkt.flags |= AV_PKT_FLAG_KEY;
1271                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1272                 *frame_size = ret;
1273                 video_size += ret;
1274                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1275                 //        enc->frame_number-1, ret, enc->pict_type);
1276                 /* if two pass, output log */
1277                 if (ost->logfile && enc->stats_out) {
1278                     fprintf(ost->logfile, "%s", enc->stats_out);
1279                 }
1280             }
1281         }
1282         ost->sync_opts++;
1283         ost->frame_number++;
1284     }
1285 }
1286
1287 static double psnr(double d){
1288     return -10.0*log(d)/log(10.0);
1289 }
1290
1291 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1292                            int frame_size)
1293 {
1294     AVCodecContext *enc;
1295     int frame_number;
1296     double ti1, bitrate, avg_bitrate;
1297
1298     /* this is executed just the first time do_video_stats is called */
1299     if (!vstats_file) {
1300         vstats_file = fopen(vstats_filename, "w");
1301         if (!vstats_file) {
1302             perror("fopen");
1303             ffmpeg_exit(1);
1304         }
1305     }
1306
1307     enc = ost->st->codec;
1308     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1309         frame_number = ost->frame_number;
1310         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1311         if (enc->flags&CODEC_FLAG_PSNR)
1312             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1313
1314         fprintf(vstats_file,"f_size= %6d ", frame_size);
1315         /* compute pts value */
1316         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1317         if (ti1 < 0.01)
1318             ti1 = 0.01;
1319
1320         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1321         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1322         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1323             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1324         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1325     }
1326 }
1327
1328 static void print_report(AVFormatContext **output_files,
1329                          AVOutputStream **ost_table, int nb_ostreams,
1330                          int is_last_report)
1331 {
1332     char buf[1024];
1333     AVOutputStream *ost;
1334     AVFormatContext *oc;
1335     int64_t total_size;
1336     AVCodecContext *enc;
1337     int frame_number, vid, i;
1338     double bitrate, ti1, pts;
1339     static int64_t last_time = -1;
1340     static int qp_histogram[52];
1341
1342     if (!is_last_report) {
1343         int64_t cur_time;
1344         /* display the report every 0.5 seconds */
1345         cur_time = av_gettime();
1346         if (last_time == -1) {
1347             last_time = cur_time;
1348             return;
1349         }
1350         if ((cur_time - last_time) < 500000)
1351             return;
1352         last_time = cur_time;
1353     }
1354
1355
1356     oc = output_files[0];
1357
1358     total_size = avio_size(oc->pb);
1359     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1360         total_size= avio_tell(oc->pb);
1361
1362     buf[0] = '\0';
1363     ti1 = 1e10;
1364     vid = 0;
1365     for(i=0;i<nb_ostreams;i++) {
1366         float q = -1;
1367         ost = ost_table[i];
1368         enc = ost->st->codec;
1369         if (!ost->st->stream_copy && enc->coded_frame)
1370             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1371         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1372             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1373         }
1374         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1375             float t = (av_gettime()-timer_start) / 1000000.0;
1376
1377             frame_number = ost->frame_number;
1378             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1379                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1380             if(is_last_report)
1381                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1382             if(qp_hist){
1383                 int j;
1384                 int qp = lrintf(q);
1385                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1386                     qp_histogram[qp]++;
1387                 for(j=0; j<32; j++)
1388                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1389             }
1390             if (enc->flags&CODEC_FLAG_PSNR){
1391                 int j;
1392                 double error, error_sum=0;
1393                 double scale, scale_sum=0;
1394                 char type[3]= {'Y','U','V'};
1395                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1396                 for(j=0; j<3; j++){
1397                     if(is_last_report){
1398                         error= enc->error[j];
1399                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1400                     }else{
1401                         error= enc->coded_frame->error[j];
1402                         scale= enc->width*enc->height*255.0*255.0;
1403                     }
1404                     if(j) scale/=4;
1405                     error_sum += error;
1406                     scale_sum += scale;
1407                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1408                 }
1409                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1410             }
1411             vid = 1;
1412         }
1413         /* compute min output value */
1414         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1415         if ((pts < ti1) && (pts > 0))
1416             ti1 = pts;
1417     }
1418     if (ti1 < 0.01)
1419         ti1 = 0.01;
1420
1421     if (verbose > 0 || is_last_report) {
1422         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1423
1424         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1425             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1426             (double)total_size / 1024, ti1, bitrate);
1427
1428         if (nb_frames_dup || nb_frames_drop)
1429           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1430                   nb_frames_dup, nb_frames_drop);
1431
1432         if (verbose >= 0)
1433             fprintf(stderr, "%s    \r", buf);
1434
1435         fflush(stderr);
1436     }
1437
1438     if (is_last_report && verbose >= 0){
1439         int64_t raw= audio_size + video_size + extra_size;
1440         fprintf(stderr, "\n");
1441         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1442                 video_size/1024.0,
1443                 audio_size/1024.0,
1444                 extra_size/1024.0,
1445                 100.0*(total_size - raw)/raw
1446         );
1447     }
1448 }
1449
1450 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1451 {
1452     int fill_char = 0x00;
1453     if (sample_fmt == AV_SAMPLE_FMT_U8)
1454         fill_char = 0x80;
1455     memset(buf, fill_char, size);
1456 }
1457
1458 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1459 static int output_packet(AVInputStream *ist, int ist_index,
1460                          AVOutputStream **ost_table, int nb_ostreams,
1461                          const AVPacket *pkt)
1462 {
1463     AVFormatContext *os;
1464     AVOutputStream *ost;
1465     int ret, i;
1466     int got_output;
1467     AVFrame picture;
1468     void *buffer_to_free = NULL;
1469     static unsigned int samples_size= 0;
1470     AVSubtitle subtitle, *subtitle_to_free;
1471     int64_t pkt_pts = AV_NOPTS_VALUE;
1472 #if CONFIG_AVFILTER
1473     int frame_available;
1474 #endif
1475
1476     AVPacket avpkt;
1477     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1478
1479     if(ist->next_pts == AV_NOPTS_VALUE)
1480         ist->next_pts= ist->pts;
1481
1482     if (pkt == NULL) {
1483         /* EOF handling */
1484         av_init_packet(&avpkt);
1485         avpkt.data = NULL;
1486         avpkt.size = 0;
1487         goto handle_eof;
1488     } else {
1489         avpkt = *pkt;
1490     }
1491
1492     if(pkt->dts != AV_NOPTS_VALUE)
1493         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1494     if(pkt->pts != AV_NOPTS_VALUE)
1495         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1496
1497     //while we have more to decode or while the decoder did output something on EOF
1498     while (avpkt.size > 0 || (!pkt && got_output)) {
1499         uint8_t *data_buf, *decoded_data_buf;
1500         int data_size, decoded_data_size;
1501     handle_eof:
1502         ist->pts= ist->next_pts;
1503
1504         if(avpkt.size && avpkt.size != pkt->size &&
1505            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1506             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1507             ist->showed_multi_packet_warning=1;
1508         }
1509
1510         /* decode the packet if needed */
1511         decoded_data_buf = NULL; /* fail safe */
1512         decoded_data_size= 0;
1513         data_buf  = avpkt.data;
1514         data_size = avpkt.size;
1515         subtitle_to_free = NULL;
1516         if (ist->decoding_needed) {
1517             switch(ist->st->codec->codec_type) {
1518             case AVMEDIA_TYPE_AUDIO:{
1519                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1520                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1521                     av_free(samples);
1522                     samples= av_malloc(samples_size);
1523                 }
1524                 decoded_data_size= samples_size;
1525                     /* XXX: could avoid copy if PCM 16 bits with same
1526                        endianness as CPU */
1527                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1528                                             &avpkt);
1529                 if (ret < 0)
1530                     goto fail_decode;
1531                 avpkt.data += ret;
1532                 avpkt.size -= ret;
1533                 data_size   = ret;
1534                 got_output  = decoded_data_size > 0;
1535                 /* Some bug in mpeg audio decoder gives */
1536                 /* decoded_data_size < 0, it seems they are overflows */
1537                 if (!got_output) {
1538                     /* no audio frame */
1539                     continue;
1540                 }
1541                 decoded_data_buf = (uint8_t *)samples;
1542                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1543                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1544                 break;}
1545             case AVMEDIA_TYPE_VIDEO:
1546                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1547                     /* XXX: allocate picture correctly */
1548                     avcodec_get_frame_defaults(&picture);
1549                     avpkt.pts = pkt_pts;
1550                     avpkt.dts = ist->pts;
1551                     pkt_pts = AV_NOPTS_VALUE;
1552
1553                     ret = avcodec_decode_video2(ist->st->codec,
1554                                                 &picture, &got_output, &avpkt);
1555                     ist->st->quality= picture.quality;
1556                     if (ret < 0)
1557                         goto fail_decode;
1558                     if (!got_output) {
1559                         /* no picture yet */
1560                         goto discard_packet;
1561                     }
1562                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1563                     if (ist->st->codec->time_base.num != 0) {
1564                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1565                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1566                                           ist->st->codec->time_base.num * ticks) /
1567                             ist->st->codec->time_base.den;
1568                     }
1569                     avpkt.size = 0;
1570                     buffer_to_free = NULL;
1571                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1572                     break;
1573             case AVMEDIA_TYPE_SUBTITLE:
1574                 ret = avcodec_decode_subtitle2(ist->st->codec,
1575                                                &subtitle, &got_output, &avpkt);
1576                 if (ret < 0)
1577                     goto fail_decode;
1578                 if (!got_output) {
1579                     goto discard_packet;
1580                 }
1581                 subtitle_to_free = &subtitle;
1582                 avpkt.size = 0;
1583                 break;
1584             default:
1585                 goto fail_decode;
1586             }
1587         } else {
1588             switch(ist->st->codec->codec_type) {
1589             case AVMEDIA_TYPE_AUDIO:
1590                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1591                     ist->st->codec->sample_rate;
1592                 break;
1593             case AVMEDIA_TYPE_VIDEO:
1594                 if (ist->st->codec->time_base.num != 0) {
1595                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1596                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1597                                       ist->st->codec->time_base.num * ticks) /
1598                         ist->st->codec->time_base.den;
1599                 }
1600                 break;
1601             }
1602             ret = avpkt.size;
1603             avpkt.size = 0;
1604         }
1605
1606 #if CONFIG_AVFILTER
1607         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1608             for (i = 0; i < nb_ostreams; i++) {
1609                 ost = ost_table[i];
1610                 if (ost->input_video_filter && ost->source_index == ist_index) {
1611                     AVRational sar;
1612                     if (ist->st->sample_aspect_ratio.num)
1613                         sar = ist->st->sample_aspect_ratio;
1614                     else
1615                         sar = ist->st->codec->sample_aspect_ratio;
1616                     // add it to be filtered
1617                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1618                                              ist->pts,
1619                                              sar);
1620                 }
1621             }
1622         }
1623 #endif
1624
1625         // preprocess audio (volume)
1626         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1627             if (audio_volume != 256) {
1628                 short *volp;
1629                 volp = samples;
1630                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1631                     int v = ((*volp) * audio_volume + 128) >> 8;
1632                     if (v < -32768) v = -32768;
1633                     if (v >  32767) v = 32767;
1634                     *volp++ = v;
1635                 }
1636             }
1637         }
1638
1639         /* frame rate emulation */
1640         if (rate_emu) {
1641             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1642             int64_t now = av_gettime() - ist->start;
1643             if (pts > now)
1644                 usleep(pts - now);
1645         }
1646         /* if output time reached then transcode raw format,
1647            encode packets and output them */
1648         if (start_time == 0 || ist->pts >= start_time)
1649             for(i=0;i<nb_ostreams;i++) {
1650                 int frame_size;
1651
1652                 ost = ost_table[i];
1653                 if (ost->source_index == ist_index) {
1654 #if CONFIG_AVFILTER
1655                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1656                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1657                 while (frame_available) {
1658                     AVRational ist_pts_tb;
1659                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1660                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1661                     if (ost->picref)
1662                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1663 #endif
1664                     os = output_files[ost->file_index];
1665
1666                     /* set the input output pts pairs */
1667                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1668
1669                     if (ost->encoding_needed) {
1670                         av_assert0(ist->decoding_needed);
1671                         switch(ost->st->codec->codec_type) {
1672                         case AVMEDIA_TYPE_AUDIO:
1673                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1674                             break;
1675                         case AVMEDIA_TYPE_VIDEO:
1676 #if CONFIG_AVFILTER
1677                             if (ost->picref->video && !ost->frame_aspect_ratio)
1678                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1679 #endif
1680                             do_video_out(os, ost, ist, &picture, &frame_size);
1681                             if (vstats_filename && frame_size)
1682                                 do_video_stats(os, ost, frame_size);
1683                             break;
1684                         case AVMEDIA_TYPE_SUBTITLE:
1685                             do_subtitle_out(os, ost, ist, &subtitle,
1686                                             pkt->pts);
1687                             break;
1688                         default:
1689                             abort();
1690                         }
1691                     } else {
1692                         AVFrame avframe; //FIXME/XXX remove this
1693                         AVPacket opkt;
1694                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1695
1696                         av_init_packet(&opkt);
1697
1698                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1699 #if !CONFIG_AVFILTER
1700                             continue;
1701 #else
1702                             goto cont;
1703 #endif
1704
1705                         /* no reencoding needed : output the packet directly */
1706                         /* force the input stream PTS */
1707
1708                         avcodec_get_frame_defaults(&avframe);
1709                         ost->st->codec->coded_frame= &avframe;
1710                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1711
1712                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1713                             audio_size += data_size;
1714                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1715                             video_size += data_size;
1716                             ost->sync_opts++;
1717                         }
1718
1719                         opkt.stream_index= ost->index;
1720                         if(pkt->pts != AV_NOPTS_VALUE)
1721                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1722                         else
1723                             opkt.pts= AV_NOPTS_VALUE;
1724
1725                         if (pkt->dts == AV_NOPTS_VALUE)
1726                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1727                         else
1728                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1729                         opkt.dts -= ost_tb_start_time;
1730
1731                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1732                         opkt.flags= pkt->flags;
1733
1734                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1735                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1736                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1737                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1738                            ) {
1739                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1740                                 opkt.destruct= av_destruct_packet;
1741                         } else {
1742                             opkt.data = data_buf;
1743                             opkt.size = data_size;
1744                         }
1745
1746                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1747                         ost->st->codec->frame_number++;
1748                         ost->frame_number++;
1749                         av_free_packet(&opkt);
1750                     }
1751 #if CONFIG_AVFILTER
1752                     cont:
1753                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1754                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1755                     if (ost->picref)
1756                         avfilter_unref_buffer(ost->picref);
1757                 }
1758 #endif
1759                 }
1760             }
1761
1762         av_free(buffer_to_free);
1763         /* XXX: allocate the subtitles in the codec ? */
1764         if (subtitle_to_free) {
1765             avsubtitle_free(subtitle_to_free);
1766             subtitle_to_free = NULL;
1767         }
1768     }
1769  discard_packet:
1770     if (pkt == NULL) {
1771         /* EOF handling */
1772
1773         for(i=0;i<nb_ostreams;i++) {
1774             ost = ost_table[i];
1775             if (ost->source_index == ist_index) {
1776                 AVCodecContext *enc= ost->st->codec;
1777                 os = output_files[ost->file_index];
1778
1779                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1780                     continue;
1781                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1782                     continue;
1783
1784                 if (ost->encoding_needed) {
1785                     for(;;) {
1786                         AVPacket pkt;
1787                         int fifo_bytes;
1788                         av_init_packet(&pkt);
1789                         pkt.stream_index= ost->index;
1790
1791                         switch(ost->st->codec->codec_type) {
1792                         case AVMEDIA_TYPE_AUDIO:
1793                             fifo_bytes = av_fifo_size(ost->fifo);
1794                             ret = 0;
1795                             /* encode any samples remaining in fifo */
1796                             if (fifo_bytes > 0) {
1797                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1798                                 int fs_tmp = enc->frame_size;
1799
1800                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1801                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1802                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1803                                 } else { /* pad */
1804                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1805                                     if (allocated_audio_buf_size < frame_bytes)
1806                                         ffmpeg_exit(1);
1807                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1808                                 }
1809
1810                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1811                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1812                                                           ost->st->time_base.num, enc->sample_rate);
1813                                 enc->frame_size = fs_tmp;
1814                             }
1815                             if(ret <= 0) {
1816                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1817                             }
1818                             if (ret < 0) {
1819                                 fprintf(stderr, "Audio encoding failed\n");
1820                                 ffmpeg_exit(1);
1821                             }
1822                             audio_size += ret;
1823                             pkt.flags |= AV_PKT_FLAG_KEY;
1824                             break;
1825                         case AVMEDIA_TYPE_VIDEO:
1826                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1827                             if (ret < 0) {
1828                                 fprintf(stderr, "Video encoding failed\n");
1829                                 ffmpeg_exit(1);
1830                             }
1831                             video_size += ret;
1832                             if(enc->coded_frame && enc->coded_frame->key_frame)
1833                                 pkt.flags |= AV_PKT_FLAG_KEY;
1834                             if (ost->logfile && enc->stats_out) {
1835                                 fprintf(ost->logfile, "%s", enc->stats_out);
1836                             }
1837                             break;
1838                         default:
1839                             ret=-1;
1840                         }
1841
1842                         if(ret<=0)
1843                             break;
1844                         pkt.data= bit_buffer;
1845                         pkt.size= ret;
1846                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1847                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1848                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1849                     }
1850                 }
1851             }
1852         }
1853     }
1854
1855     return 0;
1856  fail_decode:
1857     return -1;
1858 }
1859
1860 static void print_sdp(AVFormatContext **avc, int n)
1861 {
1862     char sdp[2048];
1863
1864     av_sdp_create(avc, n, sdp, sizeof(sdp));
1865     printf("SDP:\n%s\n", sdp);
1866     fflush(stdout);
1867 }
1868
1869 static int copy_chapters(int infile, int outfile)
1870 {
1871     AVFormatContext *is = input_files[infile].ctx;
1872     AVFormatContext *os = output_files[outfile];
1873     int i;
1874
1875     for (i = 0; i < is->nb_chapters; i++) {
1876         AVChapter *in_ch = is->chapters[i], *out_ch;
1877         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1878                                       AV_TIME_BASE_Q, in_ch->time_base);
1879         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1880                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1881
1882
1883         if (in_ch->end < ts_off)
1884             continue;
1885         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1886             break;
1887
1888         out_ch = av_mallocz(sizeof(AVChapter));
1889         if (!out_ch)
1890             return AVERROR(ENOMEM);
1891
1892         out_ch->id        = in_ch->id;
1893         out_ch->time_base = in_ch->time_base;
1894         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1895         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1896
1897         if (metadata_chapters_autocopy)
1898             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1899
1900         os->nb_chapters++;
1901         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1902         if (!os->chapters)
1903             return AVERROR(ENOMEM);
1904         os->chapters[os->nb_chapters - 1] = out_ch;
1905     }
1906     return 0;
1907 }
1908
1909 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1910                                     AVCodecContext *avctx)
1911 {
1912     char *p;
1913     int n = 1, i;
1914     int64_t t;
1915
1916     for (p = kf; *p; p++)
1917         if (*p == ',')
1918             n++;
1919     ost->forced_kf_count = n;
1920     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1921     if (!ost->forced_kf_pts) {
1922         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1923         ffmpeg_exit(1);
1924     }
1925     for (i = 0; i < n; i++) {
1926         p = i ? strchr(p, ',') + 1 : kf;
1927         t = parse_time_or_die("force_key_frames", p, 1);
1928         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1929     }
1930 }
1931
1932 /*
1933  * The following code is the main loop of the file converter
1934  */
1935 static int transcode(AVFormatContext **output_files,
1936                      int nb_output_files,
1937                      AVInputFile *input_files,
1938                      int nb_input_files,
1939                      AVStreamMap *stream_maps, int nb_stream_maps)
1940 {
1941     int ret = 0, i, j, k, n, nb_ostreams = 0;
1942     AVFormatContext *is, *os;
1943     AVCodecContext *codec, *icodec;
1944     AVOutputStream *ost, **ost_table = NULL;
1945     AVInputStream *ist;
1946     char error[1024];
1947     int want_sdp = 1;
1948     uint8_t no_packet[MAX_FILES]={0};
1949     int no_packet_count=0;
1950
1951     if (rate_emu)
1952         for (i = 0; i < nb_input_streams; i++)
1953             input_streams[i].start = av_gettime();
1954
1955     /* output stream init */
1956     nb_ostreams = 0;
1957     for(i=0;i<nb_output_files;i++) {
1958         os = output_files[i];
1959         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1960             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1961             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1962             ret = AVERROR(EINVAL);
1963             goto fail;
1964         }
1965         nb_ostreams += os->nb_streams;
1966     }
1967     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1968         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1969         ret = AVERROR(EINVAL);
1970         goto fail;
1971     }
1972
1973     /* Sanity check the mapping args -- do the input files & streams exist? */
1974     for(i=0;i<nb_stream_maps;i++) {
1975         int fi = stream_maps[i].file_index;
1976         int si = stream_maps[i].stream_index;
1977
1978         if (fi < 0 || fi > nb_input_files - 1 ||
1979             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1980             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1981             ret = AVERROR(EINVAL);
1982             goto fail;
1983         }
1984         fi = stream_maps[i].sync_file_index;
1985         si = stream_maps[i].sync_stream_index;
1986         if (fi < 0 || fi > nb_input_files - 1 ||
1987             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1988             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1989             ret = AVERROR(EINVAL);
1990             goto fail;
1991         }
1992     }
1993
1994     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1995     if (!ost_table)
1996         goto fail;
1997     n = 0;
1998     for(k=0;k<nb_output_files;k++) {
1999         os = output_files[k];
2000         for(i=0;i<os->nb_streams;i++,n++) {
2001             int found;
2002             ost = ost_table[n] = output_streams_for_file[k][i];
2003             ost->st = os->streams[i];
2004             if (nb_stream_maps > 0) {
2005                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2006                     stream_maps[n].stream_index;
2007
2008                 /* Sanity check that the stream types match */
2009                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2010                     int i= ost->file_index;
2011                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2012                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2013                         stream_maps[n].file_index, stream_maps[n].stream_index,
2014                         ost->file_index, ost->index);
2015                     ffmpeg_exit(1);
2016                 }
2017
2018             } else {
2019                 int best_nb_frames=-1;
2020                 /* get corresponding input stream index : we select the first one with the right type */
2021                 found = 0;
2022                 for (j = 0; j < nb_input_streams; j++) {
2023                     int skip=0;
2024                     ist = &input_streams[j];
2025                     if(opt_programid){
2026                         int pi,si;
2027                         AVFormatContext *f = input_files[ist->file_index].ctx;
2028                         skip=1;
2029                         for(pi=0; pi<f->nb_programs; pi++){
2030                             AVProgram *p= f->programs[pi];
2031                             if(p->id == opt_programid)
2032                                 for(si=0; si<p->nb_stream_indexes; si++){
2033                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2034                                         skip=0;
2035                                 }
2036                         }
2037                     }
2038                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2039                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2040                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2041                             best_nb_frames= ist->st->codec_info_nb_frames;
2042                             ost->source_index = j;
2043                             found = 1;
2044                         }
2045                     }
2046                 }
2047
2048                 if (!found) {
2049                     if(! opt_programid) {
2050                         /* try again and reuse existing stream */
2051                         for (j = 0; j < nb_input_streams; j++) {
2052                             ist = &input_streams[j];
2053                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2054                                 && ist->st->discard != AVDISCARD_ALL) {
2055                                 ost->source_index = j;
2056                                 found = 1;
2057                             }
2058                         }
2059                     }
2060                     if (!found) {
2061                         int i= ost->file_index;
2062                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2063                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2064                                 ost->file_index, ost->index);
2065                         ffmpeg_exit(1);
2066                     }
2067                 }
2068             }
2069             ist = &input_streams[ost->source_index];
2070             ist->discard = 0;
2071             ost->sync_ist = (nb_stream_maps > 0) ?
2072                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2073                          stream_maps[n].sync_stream_index] : ist;
2074         }
2075     }
2076
2077     /* for each output stream, we compute the right encoding parameters */
2078     for(i=0;i<nb_ostreams;i++) {
2079         ost = ost_table[i];
2080         os = output_files[ost->file_index];
2081         ist = &input_streams[ost->source_index];
2082
2083         codec = ost->st->codec;
2084         icodec = ist->st->codec;
2085
2086         if (metadata_streams_autocopy)
2087             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2088                          AV_DICT_DONT_OVERWRITE);
2089
2090         ost->st->disposition = ist->st->disposition;
2091         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2092         codec->chroma_sample_location = icodec->chroma_sample_location;
2093
2094         if (ost->st->stream_copy) {
2095             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2096
2097             if (extra_size > INT_MAX)
2098                 goto fail;
2099
2100             /* if stream_copy is selected, no need to decode or encode */
2101             codec->codec_id = icodec->codec_id;
2102             codec->codec_type = icodec->codec_type;
2103
2104             if(!codec->codec_tag){
2105                 if(   !os->oformat->codec_tag
2106                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2107                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2108                     codec->codec_tag = icodec->codec_tag;
2109             }
2110
2111             codec->bit_rate = icodec->bit_rate;
2112             codec->rc_max_rate    = icodec->rc_max_rate;
2113             codec->rc_buffer_size = icodec->rc_buffer_size;
2114             codec->extradata= av_mallocz(extra_size);
2115             if (!codec->extradata)
2116                 goto fail;
2117             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2118             codec->extradata_size= icodec->extradata_size;
2119             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){
2120                 codec->time_base = icodec->time_base;
2121                 codec->time_base.num *= icodec->ticks_per_frame;
2122                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2123                           codec->time_base.num, codec->time_base.den, INT_MAX);
2124             }else
2125                 codec->time_base = ist->st->time_base;
2126             switch(codec->codec_type) {
2127             case AVMEDIA_TYPE_AUDIO:
2128                 if(audio_volume != 256) {
2129                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2130                     ffmpeg_exit(1);
2131                 }
2132                 codec->channel_layout = icodec->channel_layout;
2133                 codec->sample_rate = icodec->sample_rate;
2134                 codec->channels = icodec->channels;
2135                 codec->frame_size = icodec->frame_size;
2136                 codec->audio_service_type = icodec->audio_service_type;
2137                 codec->block_align= icodec->block_align;
2138                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2139                     codec->block_align= 0;
2140                 if(codec->codec_id == CODEC_ID_AC3)
2141                     codec->block_align= 0;
2142                 break;
2143             case AVMEDIA_TYPE_VIDEO:
2144                 codec->pix_fmt = icodec->pix_fmt;
2145                 codec->width = icodec->width;
2146                 codec->height = icodec->height;
2147                 codec->has_b_frames = icodec->has_b_frames;
2148                 if (!codec->sample_aspect_ratio.num) {
2149                     codec->sample_aspect_ratio =
2150                     ost->st->sample_aspect_ratio =
2151                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2152                         ist->st->codec->sample_aspect_ratio.num ?
2153                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2154                 }
2155                 break;
2156             case AVMEDIA_TYPE_SUBTITLE:
2157                 codec->width = icodec->width;
2158                 codec->height = icodec->height;
2159                 break;
2160             case AVMEDIA_TYPE_DATA:
2161                 break;
2162             default:
2163                 abort();
2164             }
2165         } else {
2166             switch(codec->codec_type) {
2167             case AVMEDIA_TYPE_AUDIO:
2168                 ost->fifo= av_fifo_alloc(1024);
2169                 if(!ost->fifo)
2170                     goto fail;
2171                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2172                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2173                 icodec->request_channels = codec->channels;
2174                 ist->decoding_needed = 1;
2175                 ost->encoding_needed = 1;
2176                 ost->resample_sample_fmt  = icodec->sample_fmt;
2177                 ost->resample_sample_rate = icodec->sample_rate;
2178                 ost->resample_channels    = icodec->channels;
2179                 break;
2180             case AVMEDIA_TYPE_VIDEO:
2181                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2182                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2183                     ffmpeg_exit(1);
2184                 }
2185                 ost->video_resample = codec->width   != icodec->width  ||
2186                                       codec->height  != icodec->height ||
2187                                       codec->pix_fmt != icodec->pix_fmt;
2188                 if (ost->video_resample) {
2189 #if !CONFIG_AVFILTER
2190                     avcodec_get_frame_defaults(&ost->pict_tmp);
2191                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2192                                          codec->width, codec->height)) {
2193                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2194                         ffmpeg_exit(1);
2195                     }
2196                     ost->img_resample_ctx = sws_getContext(
2197                         icodec->width,
2198                         icodec->height,
2199                             icodec->pix_fmt,
2200                             codec->width,
2201                             codec->height,
2202                             codec->pix_fmt,
2203                             ost->sws_flags, NULL, NULL, NULL);
2204                     if (ost->img_resample_ctx == NULL) {
2205                         fprintf(stderr, "Cannot get resampling context\n");
2206                         ffmpeg_exit(1);
2207                     }
2208 #endif
2209                     codec->bits_per_raw_sample= 0;
2210                 }
2211                 ost->resample_height = icodec->height;
2212                 ost->resample_width  = icodec->width;
2213                 ost->resample_pix_fmt= icodec->pix_fmt;
2214                 ost->encoding_needed = 1;
2215                 ist->decoding_needed = 1;
2216
2217 #if CONFIG_AVFILTER
2218                 if (configure_video_filters(ist, ost)) {
2219                     fprintf(stderr, "Error opening filters!\n");
2220                     exit(1);
2221                 }
2222 #endif
2223                 break;
2224             case AVMEDIA_TYPE_SUBTITLE:
2225                 ost->encoding_needed = 1;
2226                 ist->decoding_needed = 1;
2227                 break;
2228             default:
2229                 abort();
2230                 break;
2231             }
2232             /* two pass mode */
2233             if (ost->encoding_needed &&
2234                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2235                 char logfilename[1024];
2236                 FILE *f;
2237
2238                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2239                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2240                          i);
2241                 if (codec->flags & CODEC_FLAG_PASS1) {
2242                     f = fopen(logfilename, "wb");
2243                     if (!f) {
2244                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2245                         ffmpeg_exit(1);
2246                     }
2247                     ost->logfile = f;
2248                 } else {
2249                     char  *logbuffer;
2250                     size_t logbuffer_size;
2251                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2252                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2253                         ffmpeg_exit(1);
2254                     }
2255                     codec->stats_in = logbuffer;
2256                 }
2257             }
2258         }
2259         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2260             int size= codec->width * codec->height;
2261             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2262         }
2263     }
2264
2265     if (!bit_buffer)
2266         bit_buffer = av_malloc(bit_buffer_size);
2267     if (!bit_buffer) {
2268         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2269                 bit_buffer_size);
2270         ret = AVERROR(ENOMEM);
2271         goto fail;
2272     }
2273
2274     /* open each encoder */
2275     for(i=0;i<nb_ostreams;i++) {
2276         ost = ost_table[i];
2277         if (ost->encoding_needed) {
2278             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2279             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2280             if (!codec)
2281                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2282             if (!codec) {
2283                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2284                          ost->st->codec->codec_id, ost->file_index, ost->index);
2285                 ret = AVERROR(EINVAL);
2286                 goto dump_format;
2287             }
2288             if (dec->subtitle_header) {
2289                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2290                 if (!ost->st->codec->subtitle_header) {
2291                     ret = AVERROR(ENOMEM);
2292                     goto dump_format;
2293                 }
2294                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2295                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2296             }
2297             if (avcodec_open(ost->st->codec, codec) < 0) {
2298                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2299                         ost->file_index, ost->index);
2300                 ret = AVERROR(EINVAL);
2301                 goto dump_format;
2302             }
2303             extra_size += ost->st->codec->extradata_size;
2304         }
2305     }
2306
2307     /* open each decoder */
2308     for (i = 0; i < nb_input_streams; i++) {
2309         ist = &input_streams[i];
2310         if (ist->decoding_needed) {
2311             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2312             if (!codec)
2313                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2314             if (!codec) {
2315                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2316                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2317                 ret = AVERROR(EINVAL);
2318                 goto dump_format;
2319             }
2320
2321             /* update requested sample format for the decoder based on the
2322                corresponding encoder sample format */
2323             for (j = 0; j < nb_ostreams; j++) {
2324                 ost = ost_table[j];
2325                 if (ost->source_index == i) {
2326                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2327                     break;
2328                 }
2329             }
2330
2331             if (avcodec_open(ist->st->codec, codec) < 0) {
2332                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2333                         ist->file_index, ist->st->index);
2334                 ret = AVERROR(EINVAL);
2335                 goto dump_format;
2336             }
2337             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2338             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2339         }
2340     }
2341
2342     /* init pts */
2343     for (i = 0; i < nb_input_streams; i++) {
2344         AVStream *st;
2345         ist = &input_streams[i];
2346         st= ist->st;
2347         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2348         ist->next_pts = AV_NOPTS_VALUE;
2349         init_pts_correction(&ist->pts_ctx);
2350         ist->is_start = 1;
2351     }
2352
2353     /* set meta data information from input file if required */
2354     for (i=0;i<nb_meta_data_maps;i++) {
2355         AVFormatContext *files[2];
2356         AVDictionary    **meta[2];
2357         int j;
2358
2359 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2360         if ((index) < 0 || (index) >= (nb_elems)) {\
2361             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2362                      (desc), (index));\
2363             ret = AVERROR(EINVAL);\
2364             goto dump_format;\
2365         }
2366
2367         int out_file_index = meta_data_maps[i][0].file;
2368         int in_file_index = meta_data_maps[i][1].file;
2369         if (in_file_index < 0 || out_file_index < 0)
2370             continue;
2371         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2372         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2373
2374         files[0] = output_files[out_file_index];
2375         files[1] = input_files[in_file_index].ctx;
2376
2377         for (j = 0; j < 2; j++) {
2378             AVMetaDataMap *map = &meta_data_maps[i][j];
2379
2380             switch (map->type) {
2381             case 'g':
2382                 meta[j] = &files[j]->metadata;
2383                 break;
2384             case 's':
2385                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2386                 meta[j] = &files[j]->streams[map->index]->metadata;
2387                 break;
2388             case 'c':
2389                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2390                 meta[j] = &files[j]->chapters[map->index]->metadata;
2391                 break;
2392             case 'p':
2393                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2394                 meta[j] = &files[j]->programs[map->index]->metadata;
2395                 break;
2396             }
2397         }
2398
2399         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2400     }
2401
2402     /* copy global metadata by default */
2403     if (metadata_global_autocopy) {
2404
2405         for (i = 0; i < nb_output_files; i++)
2406             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2407                          AV_DICT_DONT_OVERWRITE);
2408     }
2409
2410     /* copy chapters according to chapter maps */
2411     for (i = 0; i < nb_chapter_maps; i++) {
2412         int infile  = chapter_maps[i].in_file;
2413         int outfile = chapter_maps[i].out_file;
2414
2415         if (infile < 0 || outfile < 0)
2416             continue;
2417         if (infile >= nb_input_files) {
2418             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2419             ret = AVERROR(EINVAL);
2420             goto dump_format;
2421         }
2422         if (outfile >= nb_output_files) {
2423             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2424             ret = AVERROR(EINVAL);
2425             goto dump_format;
2426         }
2427         copy_chapters(infile, outfile);
2428     }
2429
2430     /* copy chapters from the first input file that has them*/
2431     if (!nb_chapter_maps)
2432         for (i = 0; i < nb_input_files; i++) {
2433             if (!input_files[i].ctx->nb_chapters)
2434                 continue;
2435
2436             for (j = 0; j < nb_output_files; j++)
2437                 if ((ret = copy_chapters(i, j)) < 0)
2438                     goto dump_format;
2439             break;
2440         }
2441
2442     /* open files and write file headers */
2443     for(i=0;i<nb_output_files;i++) {
2444         os = output_files[i];
2445         if (av_write_header(os) < 0) {
2446             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2447             ret = AVERROR(EINVAL);
2448             goto dump_format;
2449         }
2450         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2451             want_sdp = 0;
2452         }
2453     }
2454
2455  dump_format:
2456     /* dump the file output parameters - cannot be done before in case
2457        of stream copy */
2458     for(i=0;i<nb_output_files;i++) {
2459         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2460     }
2461
2462     /* dump the stream mapping */
2463     if (verbose >= 0) {
2464         fprintf(stderr, "Stream mapping:\n");
2465         for(i=0;i<nb_ostreams;i++) {
2466             ost = ost_table[i];
2467             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2468                     input_streams[ost->source_index].file_index,
2469                     input_streams[ost->source_index].st->index,
2470                     ost->file_index,
2471                     ost->index);
2472             if (ost->sync_ist != &input_streams[ost->source_index])
2473                 fprintf(stderr, " [sync #%d.%d]",
2474                         ost->sync_ist->file_index,
2475                         ost->sync_ist->st->index);
2476             fprintf(stderr, "\n");
2477         }
2478     }
2479
2480     if (ret) {
2481         fprintf(stderr, "%s\n", error);
2482         goto fail;
2483     }
2484
2485     if (want_sdp) {
2486         print_sdp(output_files, nb_output_files);
2487     }
2488
2489     if (verbose >= 0)
2490         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2491     term_init();
2492
2493     timer_start = av_gettime();
2494
2495     for(; received_sigterm == 0;) {
2496         int file_index, ist_index;
2497         AVPacket pkt;
2498         double ipts_min;
2499         double opts_min;
2500
2501     redo:
2502         ipts_min= 1e100;
2503         opts_min= 1e100;
2504
2505         /* select the stream that we must read now by looking at the
2506            smallest output pts */
2507         file_index = -1;
2508         for(i=0;i<nb_ostreams;i++) {
2509             double ipts, opts;
2510             ost = ost_table[i];
2511             os = output_files[ost->file_index];
2512             ist = &input_streams[ost->source_index];
2513             if(ist->is_past_recording_time || no_packet[ist->file_index])
2514                 continue;
2515                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2516             ipts = (double)ist->pts;
2517             if (!input_files[ist->file_index].eof_reached){
2518                 if(ipts < ipts_min) {
2519                     ipts_min = ipts;
2520                     if(input_sync ) file_index = ist->file_index;
2521                 }
2522                 if(opts < opts_min) {
2523                     opts_min = opts;
2524                     if(!input_sync) file_index = ist->file_index;
2525                 }
2526             }
2527             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2528                 file_index= -1;
2529                 break;
2530             }
2531         }
2532         /* if none, if is finished */
2533         if (file_index < 0) {
2534             if(no_packet_count){
2535                 no_packet_count=0;
2536                 memset(no_packet, 0, sizeof(no_packet));
2537                 usleep(10000);
2538                 continue;
2539             }
2540             break;
2541         }
2542
2543         /* finish if limit size exhausted */
2544         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2545             break;
2546
2547         /* read a frame from it and output it in the fifo */
2548         is = input_files[file_index].ctx;
2549         ret= av_read_frame(is, &pkt);
2550         if(ret == AVERROR(EAGAIN)){
2551             no_packet[file_index]=1;
2552             no_packet_count++;
2553             continue;
2554         }
2555         if (ret < 0) {
2556             input_files[file_index].eof_reached = 1;
2557             if (opt_shortest)
2558                 break;
2559             else
2560                 continue;
2561         }
2562
2563         no_packet_count=0;
2564         memset(no_packet, 0, sizeof(no_packet));
2565
2566         if (do_pkt_dump) {
2567             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2568                              is->streams[pkt.stream_index]);
2569         }
2570         /* the following test is needed in case new streams appear
2571            dynamically in stream : we ignore them */
2572         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2573             goto discard_packet;
2574         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2575         ist = &input_streams[ist_index];
2576         if (ist->discard)
2577             goto discard_packet;
2578
2579         if (pkt.dts != AV_NOPTS_VALUE)
2580             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2581         if (pkt.pts != AV_NOPTS_VALUE)
2582             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2583
2584         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2585             && input_files_ts_scale[file_index][pkt.stream_index]){
2586             if(pkt.pts != AV_NOPTS_VALUE)
2587                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2588             if(pkt.dts != AV_NOPTS_VALUE)
2589                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2590         }
2591
2592 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2593         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2594             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2595             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2596             int64_t delta= pkt_dts - ist->next_pts;
2597             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2598                 input_files_ts_offset[ist->file_index]-= delta;
2599                 if (verbose > 2)
2600                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2601                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2602                 if(pkt.pts != AV_NOPTS_VALUE)
2603                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2604             }
2605         }
2606
2607         /* finish if recording time exhausted */
2608         if (recording_time != INT64_MAX &&
2609             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2610             ist->is_past_recording_time = 1;
2611             goto discard_packet;
2612         }
2613
2614         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2615         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2616
2617             if (verbose >= 0)
2618                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2619                         ist->file_index, ist->st->index);
2620             if (exit_on_error)
2621                 ffmpeg_exit(1);
2622             av_free_packet(&pkt);
2623             goto redo;
2624         }
2625
2626     discard_packet:
2627         av_free_packet(&pkt);
2628
2629         /* dump report by using the output first video and audio streams */
2630         print_report(output_files, ost_table, nb_ostreams, 0);
2631     }
2632
2633     /* at the end of stream, we must flush the decoder buffers */
2634     for (i = 0; i < nb_input_streams; i++) {
2635         ist = &input_streams[i];
2636         if (ist->decoding_needed) {
2637             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2638         }
2639     }
2640
2641     term_exit();
2642
2643     /* write the trailer if needed and close file */
2644     for(i=0;i<nb_output_files;i++) {
2645         os = output_files[i];
2646         av_write_trailer(os);
2647     }
2648
2649     /* dump report by using the first video and audio streams */
2650     print_report(output_files, ost_table, nb_ostreams, 1);
2651
2652     /* close each encoder */
2653     for(i=0;i<nb_ostreams;i++) {
2654         ost = ost_table[i];
2655         if (ost->encoding_needed) {
2656             av_freep(&ost->st->codec->stats_in);
2657             avcodec_close(ost->st->codec);
2658         }
2659 #if CONFIG_AVFILTER
2660         avfilter_graph_free(&ost->graph);
2661 #endif
2662     }
2663
2664     /* close each decoder */
2665     for (i = 0; i < nb_input_streams; i++) {
2666         ist = &input_streams[i];
2667         if (ist->decoding_needed) {
2668             avcodec_close(ist->st->codec);
2669         }
2670     }
2671
2672     /* finished ! */
2673     ret = 0;
2674
2675  fail:
2676     av_freep(&bit_buffer);
2677
2678     if (ost_table) {
2679         for(i=0;i<nb_ostreams;i++) {
2680             ost = ost_table[i];
2681             if (ost) {
2682                 if (ost->st->stream_copy)
2683                     av_freep(&ost->st->codec->extradata);
2684                 if (ost->logfile) {
2685                     fclose(ost->logfile);
2686                     ost->logfile = NULL;
2687                 }
2688                 av_fifo_free(ost->fifo); /* works even if fifo is not
2689                                              initialized but set to zero */
2690                 av_freep(&ost->st->codec->subtitle_header);
2691                 av_free(ost->pict_tmp.data[0]);
2692                 av_free(ost->forced_kf_pts);
2693                 if (ost->video_resample)
2694                     sws_freeContext(ost->img_resample_ctx);
2695                 if (ost->resample)
2696                     audio_resample_close(ost->resample);
2697                 if (ost->reformat_ctx)
2698                     av_audio_convert_free(ost->reformat_ctx);
2699                 av_free(ost);
2700             }
2701         }
2702         av_free(ost_table);
2703     }
2704     return ret;
2705 }
2706
2707 static int opt_format(const char *opt, const char *arg)
2708 {
2709     last_asked_format = arg;
2710     return 0;
2711 }
2712
2713 static int opt_video_rc_override_string(const char *opt, const char *arg)
2714 {
2715     video_rc_override_string = arg;
2716     return 0;
2717 }
2718
2719 static int opt_me_threshold(const char *opt, const char *arg)
2720 {
2721     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2722     return 0;
2723 }
2724
2725 static int opt_verbose(const char *opt, const char *arg)
2726 {
2727     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2728     return 0;
2729 }
2730
2731 static int opt_frame_rate(const char *opt, const char *arg)
2732 {
2733     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2734         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2735         ffmpeg_exit(1);
2736     }
2737     return 0;
2738 }
2739
2740 static int opt_bitrate(const char *opt, const char *arg)
2741 {
2742     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2743
2744     opt_default(opt, arg);
2745
2746     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2747         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2748
2749     return 0;
2750 }
2751
2752 static int opt_frame_crop(const char *opt, const char *arg)
2753 {
2754     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2755     return AVERROR(EINVAL);
2756 }
2757
2758 static int opt_frame_size(const char *opt, const char *arg)
2759 {
2760     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2761         fprintf(stderr, "Incorrect frame size\n");
2762         return AVERROR(EINVAL);
2763     }
2764     return 0;
2765 }
2766
2767 static int opt_pad(const char *opt, const char *arg) {
2768     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2769     return -1;
2770 }
2771
2772 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2773 {
2774     if (strcmp(arg, "list")) {
2775         frame_pix_fmt = av_get_pix_fmt(arg);
2776         if (frame_pix_fmt == PIX_FMT_NONE) {
2777             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2778             return AVERROR(EINVAL);
2779         }
2780     } else {
2781         show_pix_fmts();
2782         ffmpeg_exit(0);
2783     }
2784     return 0;
2785 }
2786
2787 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2788 {
2789     int x = 0, y = 0;
2790     double ar = 0;
2791     const char *p;
2792     char *end;
2793
2794     p = strchr(arg, ':');
2795     if (p) {
2796         x = strtol(arg, &end, 10);
2797         if (end == p)
2798             y = strtol(end+1, &end, 10);
2799         if (x > 0 && y > 0)
2800             ar = (double)x / (double)y;
2801     } else
2802         ar = strtod(arg, NULL);
2803
2804     if (!ar) {
2805         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2806         return AVERROR(EINVAL);
2807     }
2808     frame_aspect_ratio = ar;
2809     return 0;
2810 }
2811
2812 static int opt_metadata(const char *opt, const char *arg)
2813 {
2814     char *mid= strchr(arg, '=');
2815
2816     if(!mid){
2817         fprintf(stderr, "Missing =\n");
2818         ffmpeg_exit(1);
2819     }
2820     *mid++= 0;
2821
2822     av_dict_set(&metadata, arg, mid, 0);
2823
2824     return 0;
2825 }
2826
2827 static int opt_qscale(const char *opt, const char *arg)
2828 {
2829     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2830     if (video_qscale == 0) {
2831         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2832         return AVERROR(EINVAL);
2833     }
2834     return 0;
2835 }
2836
2837 static int opt_top_field_first(const char *opt, const char *arg)
2838 {
2839     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2840     return 0;
2841 }
2842
2843 static int opt_thread_count(const char *opt, const char *arg)
2844 {
2845     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2846 #if !HAVE_THREADS
2847     if (verbose >= 0)
2848         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2849 #endif
2850     return 0;
2851 }
2852
2853 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2854 {
2855     if (strcmp(arg, "list")) {
2856         audio_sample_fmt = av_get_sample_fmt(arg);
2857         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2858             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2859             return AVERROR(EINVAL);
2860         }
2861     } else {
2862         int i;
2863         char fmt_str[128];
2864         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2865             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2866         ffmpeg_exit(0);
2867     }
2868     return 0;
2869 }
2870
2871 static int opt_audio_rate(const char *opt, const char *arg)
2872 {
2873     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2874     return 0;
2875 }
2876
2877 static int opt_audio_channels(const char *opt, const char *arg)
2878 {
2879     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2880     return 0;
2881 }
2882
2883 static int opt_video_channel(const char *opt, const char *arg)
2884 {
2885     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2886     return 0;
2887 }
2888
2889 static int opt_video_standard(const char *opt, const char *arg)
2890 {
2891     video_standard = av_strdup(arg);
2892     return 0;
2893 }
2894
2895 static int opt_codec(int *pstream_copy, char **pcodec_name,
2896                       int codec_type, const char *arg)
2897 {
2898     av_freep(pcodec_name);
2899     if (!strcmp(arg, "copy")) {
2900         *pstream_copy = 1;
2901     } else {
2902         *pcodec_name = av_strdup(arg);
2903     }
2904     return 0;
2905 }
2906
2907 static int opt_audio_codec(const char *opt, const char *arg)
2908 {
2909     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2910 }
2911
2912 static int opt_video_codec(const char *opt, const char *arg)
2913 {
2914     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2915 }
2916
2917 static int opt_subtitle_codec(const char *opt, const char *arg)
2918 {
2919     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2920 }
2921
2922 static int opt_data_codec(const char *opt, const char *arg)
2923 {
2924     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2925 }
2926
2927 static int opt_codec_tag(const char *opt, const char *arg)
2928 {
2929     char *tail;
2930     uint32_t *codec_tag;
2931
2932     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2933                 !strcmp(opt, "vtag") ? &video_codec_tag :
2934                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2935     if (!codec_tag)
2936         return -1;
2937
2938     *codec_tag = strtol(arg, &tail, 0);
2939     if (!tail || *tail)
2940         *codec_tag = AV_RL32(arg);
2941
2942     return 0;
2943 }
2944
2945 static int opt_map(const char *opt, const char *arg)
2946 {
2947     AVStreamMap *m;
2948     char *p;
2949
2950     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2951     m = &stream_maps[nb_stream_maps-1];
2952
2953     m->file_index = strtol(arg, &p, 0);
2954     if (*p)
2955         p++;
2956
2957     m->stream_index = strtol(p, &p, 0);
2958     if (*p) {
2959         p++;
2960         m->sync_file_index = strtol(p, &p, 0);
2961         if (*p)
2962             p++;
2963         m->sync_stream_index = strtol(p, &p, 0);
2964     } else {
2965         m->sync_file_index = m->file_index;
2966         m->sync_stream_index = m->stream_index;
2967     }
2968     return 0;
2969 }
2970
2971 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2972 {
2973     *endptr = arg;
2974     if (*arg == ',') {
2975         *type = *(++arg);
2976         switch (*arg) {
2977         case 'g':
2978             break;
2979         case 's':
2980         case 'c':
2981         case 'p':
2982             *index = strtol(++arg, endptr, 0);
2983             break;
2984         default:
2985             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2986             ffmpeg_exit(1);
2987         }
2988     } else
2989         *type = 'g';
2990 }
2991
2992 static int opt_map_metadata(const char *opt, const char *arg)
2993 {
2994     AVMetaDataMap *m, *m1;
2995     char *p;
2996
2997     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2998                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2999
3000     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3001     m->file = strtol(arg, &p, 0);
3002     parse_meta_type(p, &m->type, &m->index, &p);
3003     if (*p)
3004         p++;
3005
3006     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3007     m1->file = strtol(p, &p, 0);
3008     parse_meta_type(p, &m1->type, &m1->index, &p);
3009
3010     if (m->type == 'g' || m1->type == 'g')
3011         metadata_global_autocopy = 0;
3012     if (m->type == 's' || m1->type == 's')
3013         metadata_streams_autocopy = 0;
3014     if (m->type == 'c' || m1->type == 'c')
3015         metadata_chapters_autocopy = 0;
3016
3017     return 0;
3018 }
3019
3020 static int opt_map_meta_data(const char *opt, const char *arg)
3021 {
3022     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3023                     "Use -map_metadata instead.\n");
3024     return opt_map_metadata(opt, arg);
3025 }
3026
3027 static int opt_map_chapters(const char *opt, const char *arg)
3028 {
3029     AVChapterMap *c;
3030     char *p;
3031
3032     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3033                               nb_chapter_maps + 1);
3034     c = &chapter_maps[nb_chapter_maps - 1];
3035     c->out_file = strtol(arg, &p, 0);
3036     if (*p)
3037         p++;
3038
3039     c->in_file = strtol(p, &p, 0);
3040     return 0;
3041 }
3042
3043 static int opt_input_ts_scale(const char *opt, const char *arg)
3044 {
3045     unsigned int stream;
3046     double scale;
3047     char *p;
3048
3049     stream = strtol(arg, &p, 0);
3050     if (*p)
3051         p++;
3052     scale= strtod(p, &p);
3053
3054     if(stream >= MAX_STREAMS)
3055         ffmpeg_exit(1);
3056
3057     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);
3058     input_files_ts_scale[nb_input_files][stream]= scale;
3059     return 0;
3060 }
3061
3062 static int opt_recording_time(const char *opt, const char *arg)
3063 {
3064     recording_time = parse_time_or_die(opt, arg, 1);
3065     return 0;
3066 }
3067
3068 static int opt_start_time(const char *opt, const char *arg)
3069 {
3070     start_time = parse_time_or_die(opt, arg, 1);
3071     return 0;
3072 }
3073
3074 static int opt_recording_timestamp(const char *opt, const char *arg)
3075 {
3076     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3077     return 0;
3078 }
3079
3080 static int opt_input_ts_offset(const char *opt, const char *arg)
3081 {
3082     input_ts_offset = parse_time_or_die(opt, arg, 1);
3083     return 0;
3084 }
3085
3086 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3087 {
3088     const char *codec_string = encoder ? "encoder" : "decoder";
3089     AVCodec *codec;
3090
3091     if(!name)
3092         return CODEC_ID_NONE;
3093     codec = encoder ?
3094         avcodec_find_encoder_by_name(name) :
3095         avcodec_find_decoder_by_name(name);
3096     if(!codec) {
3097         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3098         ffmpeg_exit(1);
3099     }
3100     if(codec->type != type) {
3101         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3102         ffmpeg_exit(1);
3103     }
3104     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3105        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3106         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3107                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3108                 codec_string, codec->name);
3109         codec = encoder ?
3110             avcodec_find_encoder(codec->id) :
3111             avcodec_find_decoder(codec->id);
3112         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3113             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3114                     codec_string, codec->name);
3115         ffmpeg_exit(1);
3116     }
3117     return codec->id;
3118 }
3119
3120 static int opt_input_file(const char *opt, const char *filename)
3121 {
3122     AVFormatContext *ic;
3123     AVFormatParameters params, *ap = &params;
3124     AVInputFormat *file_iformat = NULL;
3125     int err, i, ret, rfps, rfps_base;
3126     int64_t timestamp;
3127
3128     if (last_asked_format) {
3129         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3130             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3131             ffmpeg_exit(1);
3132         }
3133         last_asked_format = NULL;
3134     }
3135
3136     if (!strcmp(filename, "-"))
3137         filename = "pipe:";
3138
3139     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3140                     !strcmp(filename, "/dev/stdin");
3141
3142     /* get default parameters from command line */
3143     ic = avformat_alloc_context();
3144     if (!ic) {
3145         print_error(filename, AVERROR(ENOMEM));
3146         ffmpeg_exit(1);
3147     }
3148
3149     memset(ap, 0, sizeof(*ap));
3150     ap->prealloced_context = 1;
3151     ap->sample_rate = audio_sample_rate;
3152     ap->channels = audio_channels;
3153     ap->time_base.den = frame_rate.num;
3154     ap->time_base.num = frame_rate.den;
3155     ap->width = frame_width;
3156     ap->height = frame_height;
3157     ap->pix_fmt = frame_pix_fmt;
3158    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3159     ap->channel = video_channel;
3160     ap->standard = video_standard;
3161
3162     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3163
3164     ic->video_codec_id   =
3165         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3166                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3167     ic->audio_codec_id   =
3168         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3169                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3170     ic->subtitle_codec_id=
3171         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3172                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3173     ic->flags |= AVFMT_FLAG_NONBLOCK;
3174
3175     /* open the input file with generic libav function */
3176     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3177     if (err < 0) {
3178         print_error(filename, err);
3179         ffmpeg_exit(1);
3180     }
3181     if(opt_programid) {
3182         int i, j;
3183         int found=0;
3184         for(i=0; i<ic->nb_streams; i++){
3185             ic->streams[i]->discard= AVDISCARD_ALL;
3186         }
3187         for(i=0; i<ic->nb_programs; i++){
3188             AVProgram *p= ic->programs[i];
3189             if(p->id != opt_programid){
3190                 p->discard = AVDISCARD_ALL;
3191             }else{
3192                 found=1;
3193                 for(j=0; j<p->nb_stream_indexes; j++){
3194                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3195                 }
3196             }
3197         }
3198         if(!found){
3199             fprintf(stderr, "Specified program id not found\n");
3200             ffmpeg_exit(1);
3201         }
3202         opt_programid=0;
3203     }
3204
3205     ic->loop_input = loop_input;
3206
3207     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3208     for (i = 0; i < ic->nb_streams; i++) {
3209         AVCodecContext *dec = ic->streams[i]->codec;
3210         switch (dec->codec_type) {
3211         case AVMEDIA_TYPE_AUDIO:
3212             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3213                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3214                              NULL);
3215             break;
3216         case AVMEDIA_TYPE_VIDEO:
3217             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3218                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3219                              NULL);
3220             break;
3221         }
3222     }
3223
3224     /* If not enough info to get the stream parameters, we decode the
3225        first frames to get it. (used in mpeg case for example) */
3226     ret = av_find_stream_info(ic);
3227     if (ret < 0 && verbose >= 0) {
3228         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3229         av_close_input_file(ic);
3230         ffmpeg_exit(1);
3231     }
3232
3233     timestamp = start_time;
3234     /* add the stream start time */
3235     if (ic->start_time != AV_NOPTS_VALUE)
3236         timestamp += ic->start_time;
3237
3238     /* if seeking requested, we execute it */
3239     if (start_time != 0) {
3240         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3241         if (ret < 0) {
3242             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3243                     filename, (double)timestamp / AV_TIME_BASE);
3244         }
3245         /* reset seek info */
3246         start_time = 0;
3247     }
3248
3249     /* update the current parameters so that they match the one of the input stream */
3250     for(i=0;i<ic->nb_streams;i++) {
3251         AVStream *st = ic->streams[i];
3252         AVCodecContext *dec = st->codec;
3253         AVInputStream *ist;
3254
3255         dec->thread_count = thread_count;
3256         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3257
3258         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3259         ist = &input_streams[nb_input_streams - 1];
3260         ist->st = st;
3261         ist->file_index = nb_input_files;
3262         ist->discard = 1;
3263
3264         switch (dec->codec_type) {
3265         case AVMEDIA_TYPE_AUDIO:
3266             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3267             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3268             channel_layout    = dec->channel_layout;
3269             audio_channels    = dec->channels;
3270             audio_sample_rate = dec->sample_rate;
3271             audio_sample_fmt  = dec->sample_fmt;
3272             if(audio_disable)
3273                 st->discard= AVDISCARD_ALL;
3274             /* Note that av_find_stream_info can add more streams, and we
3275              * currently have no chance of setting up lowres decoding
3276              * early enough for them. */
3277             if (dec->lowres)
3278                 audio_sample_rate >>= dec->lowres;
3279             break;
3280         case AVMEDIA_TYPE_VIDEO:
3281             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3282             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3283             frame_height = dec->height;
3284             frame_width  = dec->width;
3285             frame_pix_fmt = dec->pix_fmt;
3286             rfps      = ic->streams[i]->r_frame_rate.num;
3287             rfps_base = ic->streams[i]->r_frame_rate.den;
3288             if (dec->lowres) {
3289                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3290                 frame_height >>= dec->lowres;
3291                 frame_width  >>= dec->lowres;
3292                 dec->height = frame_height;
3293                 dec->width  = frame_width;
3294             }
3295             if(me_threshold)
3296                 dec->debug |= FF_DEBUG_MV;
3297
3298             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3299
3300                 if (verbose >= 0)
3301                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3302                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3303
3304                     (float)rfps / rfps_base, rfps, rfps_base);
3305             }
3306             /* update the current frame rate to match the stream frame rate */
3307             frame_rate.num = rfps;
3308             frame_rate.den = rfps_base;
3309
3310             if(video_disable)
3311                 st->discard= AVDISCARD_ALL;
3312             else if(video_discard)
3313                 st->discard= video_discard;
3314             break;
3315         case AVMEDIA_TYPE_DATA:
3316             break;
3317         case AVMEDIA_TYPE_SUBTITLE:
3318             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3319             if(subtitle_disable)
3320                 st->discard = AVDISCARD_ALL;
3321             break;
3322         case AVMEDIA_TYPE_ATTACHMENT:
3323         case AVMEDIA_TYPE_UNKNOWN:
3324             break;
3325         default:
3326             abort();
3327         }
3328     }
3329
3330     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3331     /* dump the file content */
3332     if (verbose >= 0)
3333         av_dump_format(ic, nb_input_files, filename, 0);
3334
3335     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3336     input_files[nb_input_files - 1].ctx        = ic;
3337     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3338
3339     video_channel = 0;
3340
3341     av_freep(&video_codec_name);
3342     av_freep(&audio_codec_name);
3343     av_freep(&subtitle_codec_name);
3344     uninit_opts();
3345     init_opts();
3346     return 0;
3347 }
3348
3349 static void check_inputs(int *has_video_ptr,
3350                          int *has_audio_ptr,
3351                          int *has_subtitle_ptr,
3352                          int *has_data_ptr)
3353 {
3354     int has_video, has_audio, has_subtitle, has_data, i, j;
3355     AVFormatContext *ic;
3356
3357     has_video = 0;
3358     has_audio = 0;
3359     has_subtitle = 0;
3360     has_data = 0;
3361
3362     for(j=0;j<nb_input_files;j++) {
3363         ic = input_files[j].ctx;
3364         for(i=0;i<ic->nb_streams;i++) {
3365             AVCodecContext *enc = ic->streams[i]->codec;
3366             switch(enc->codec_type) {
3367             case AVMEDIA_TYPE_AUDIO:
3368                 has_audio = 1;
3369                 break;
3370             case AVMEDIA_TYPE_VIDEO:
3371                 has_video = 1;
3372                 break;
3373             case AVMEDIA_TYPE_SUBTITLE:
3374                 has_subtitle = 1;
3375                 break;
3376             case AVMEDIA_TYPE_DATA:
3377             case AVMEDIA_TYPE_ATTACHMENT:
3378             case AVMEDIA_TYPE_UNKNOWN:
3379                 has_data = 1;
3380                 break;
3381             default:
3382                 abort();
3383             }
3384         }
3385     }
3386     *has_video_ptr = has_video;
3387     *has_audio_ptr = has_audio;
3388     *has_subtitle_ptr = has_subtitle;
3389     *has_data_ptr = has_data;
3390 }
3391
3392 static void new_video_stream(AVFormatContext *oc, int file_idx)
3393 {
3394     AVStream *st;
3395     AVOutputStream *ost;
3396     AVCodecContext *video_enc;
3397     enum CodecID codec_id = CODEC_ID_NONE;
3398     AVCodec *codec= NULL;
3399
3400     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3401     if (!st) {
3402         fprintf(stderr, "Could not alloc stream\n");
3403         ffmpeg_exit(1);
3404     }
3405     ost = new_output_stream(oc, file_idx);
3406
3407     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3408     if(!video_stream_copy){
3409         if (video_codec_name) {
3410             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3411                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3412             codec = avcodec_find_encoder_by_name(video_codec_name);
3413             output_codecs[nb_output_codecs-1] = codec;
3414         } else {
3415             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3416             codec = avcodec_find_encoder(codec_id);
3417         }
3418
3419         ost->frame_aspect_ratio = frame_aspect_ratio;
3420         frame_aspect_ratio = 0;
3421 #if CONFIG_AVFILTER
3422         ost->avfilter= vfilters;
3423         vfilters = NULL;
3424 #endif
3425     }
3426
3427     avcodec_get_context_defaults3(st->codec, codec);
3428     ost->bitstream_filters = video_bitstream_filters;
3429     video_bitstream_filters= NULL;
3430
3431     st->codec->thread_count= thread_count;
3432
3433     video_enc = st->codec;
3434
3435     if(video_codec_tag)
3436         video_enc->codec_tag= video_codec_tag;
3437
3438     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3439         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3440         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3441     }
3442
3443     if (video_stream_copy) {
3444         st->stream_copy = 1;
3445         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3446         video_enc->sample_aspect_ratio =
3447         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3448     } else {
3449         const char *p;
3450         int i;
3451         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3452
3453         video_enc->codec_id = codec_id;
3454         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3455
3456         if (codec && codec->supported_framerates && !force_fps)
3457             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3458         video_enc->time_base.den = fps.num;
3459         video_enc->time_base.num = fps.den;
3460
3461         video_enc->width = frame_width;
3462         video_enc->height = frame_height;
3463         video_enc->pix_fmt = frame_pix_fmt;
3464         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3465
3466         choose_pixel_fmt(st, codec);
3467
3468         if (intra_only)
3469             video_enc->gop_size = 0;
3470         if (video_qscale || same_quality) {
3471             video_enc->flags |= CODEC_FLAG_QSCALE;
3472             video_enc->global_quality=
3473                 st->quality = FF_QP2LAMBDA * video_qscale;
3474         }
3475
3476         if(intra_matrix)
3477             video_enc->intra_matrix = intra_matrix;
3478         if(inter_matrix)
3479             video_enc->inter_matrix = inter_matrix;
3480
3481         p= video_rc_override_string;
3482         for(i=0; p; i++){
3483             int start, end, q;
3484             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3485             if(e!=3){
3486                 fprintf(stderr, "error parsing rc_override\n");
3487                 ffmpeg_exit(1);
3488             }
3489             video_enc->rc_override=
3490                 av_realloc(video_enc->rc_override,
3491                            sizeof(RcOverride)*(i+1));
3492             video_enc->rc_override[i].start_frame= start;
3493             video_enc->rc_override[i].end_frame  = end;
3494             if(q>0){
3495                 video_enc->rc_override[i].qscale= q;
3496                 video_enc->rc_override[i].quality_factor= 1.0;
3497             }
3498             else{
3499                 video_enc->rc_override[i].qscale= 0;
3500                 video_enc->rc_override[i].quality_factor= -q/100.0;
3501             }
3502             p= strchr(p, '/');
3503             if(p) p++;
3504         }
3505         video_enc->rc_override_count=i;
3506         if (!video_enc->rc_initial_buffer_occupancy)
3507             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3508         video_enc->me_threshold= me_threshold;
3509         video_enc->intra_dc_precision= intra_dc_precision - 8;
3510
3511         if (do_psnr)
3512             video_enc->flags|= CODEC_FLAG_PSNR;
3513
3514         /* two pass mode */
3515         if (do_pass) {
3516             if (do_pass == 1) {
3517                 video_enc->flags |= CODEC_FLAG_PASS1;
3518             } else {
3519                 video_enc->flags |= CODEC_FLAG_PASS2;
3520             }
3521         }
3522
3523         if (forced_key_frames)
3524             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3525     }
3526     if (video_language) {
3527         av_dict_set(&st->metadata, "language", video_language, 0);
3528         av_freep(&video_language);
3529     }
3530
3531     /* reset some key parameters */
3532     video_disable = 0;
3533     av_freep(&video_codec_name);
3534     av_freep(&forced_key_frames);
3535     video_stream_copy = 0;
3536     frame_pix_fmt = PIX_FMT_NONE;
3537 }
3538
3539 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3540 {
3541     AVStream *st;
3542     AVOutputStream *ost;
3543     AVCodec *codec= NULL;
3544     AVCodecContext *audio_enc;
3545     enum CodecID codec_id = CODEC_ID_NONE;
3546
3547     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3548     if (!st) {
3549         fprintf(stderr, "Could not alloc stream\n");
3550         ffmpeg_exit(1);
3551     }
3552     ost = new_output_stream(oc, file_idx);
3553
3554     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3555     if(!audio_stream_copy){
3556         if (audio_codec_name) {
3557             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3558                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3559             codec = avcodec_find_encoder_by_name(audio_codec_name);
3560             output_codecs[nb_output_codecs-1] = codec;
3561         } else {
3562             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3563             codec = avcodec_find_encoder(codec_id);
3564         }
3565     }
3566
3567     avcodec_get_context_defaults3(st->codec, codec);
3568
3569     ost->bitstream_filters = audio_bitstream_filters;
3570     audio_bitstream_filters= NULL;
3571
3572     st->codec->thread_count= thread_count;
3573
3574     audio_enc = st->codec;
3575     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3576
3577     if(audio_codec_tag)
3578         audio_enc->codec_tag= audio_codec_tag;
3579
3580     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3581         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3582         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3583     }
3584     if (audio_stream_copy) {
3585         st->stream_copy = 1;
3586         audio_enc->channels = audio_channels;
3587         audio_enc->sample_rate = audio_sample_rate;
3588     } else {
3589         audio_enc->codec_id = codec_id;
3590         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3591
3592         if (audio_qscale > QSCALE_NONE) {
3593             audio_enc->flags |= CODEC_FLAG_QSCALE;
3594             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3595         }
3596         audio_enc->channels = audio_channels;
3597         audio_enc->sample_fmt = audio_sample_fmt;
3598         audio_enc->sample_rate = audio_sample_rate;
3599         audio_enc->channel_layout = channel_layout;
3600         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3601             audio_enc->channel_layout = 0;
3602         choose_sample_fmt(st, codec);
3603         choose_sample_rate(st, codec);
3604     }
3605     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3606     if (audio_language) {
3607         av_dict_set(&st->metadata, "language", audio_language, 0);
3608         av_freep(&audio_language);
3609     }
3610
3611     /* reset some key parameters */
3612     audio_disable = 0;
3613     av_freep(&audio_codec_name);
3614     audio_stream_copy = 0;
3615 }
3616
3617 static void new_data_stream(AVFormatContext *oc, int file_idx)
3618 {
3619     AVStream *st;
3620     AVCodec *codec=NULL;
3621     AVCodecContext *data_enc;
3622
3623     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3624     if (!st) {
3625         fprintf(stderr, "Could not alloc stream\n");
3626         ffmpeg_exit(1);
3627     }
3628     new_output_stream(oc, file_idx);
3629     data_enc = st->codec;
3630     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3631     if (!data_stream_copy) {
3632         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3633         ffmpeg_exit(1);
3634     }
3635     avcodec_get_context_defaults3(st->codec, codec);
3636
3637     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3638
3639     if (data_codec_tag)
3640         data_enc->codec_tag= data_codec_tag;
3641
3642     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3643         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3644         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3645     }
3646     if (data_stream_copy) {