ffmpeg: merge input_files_ts_scale into InputStream.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int file_index;
83     int stream_index;
84     int sync_file_index;
85     int sync_stream_index;
86 } StreamMap;
87
88 /**
89  * select an input file for an output file
90  */
91 typedef struct MetadataMap {
92     int  file;      //< file index
93     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94     int  index;     //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98     int in_file;
99     int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
106
107 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
108
109 static const char *last_asked_format = NULL;
110 static double *ts_scale;
111 static int  nb_ts_scale;
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVDictionary *output_opts[MAX_FILES];
115 static int nb_output_files = 0;
116
117 static StreamMap *stream_maps = NULL;
118 static int nb_stream_maps;
119
120 /* first item specifies output metadata, second is input */
121 static MetadataMap (*meta_data_maps)[2] = NULL;
122 static int nb_meta_data_maps;
123 static int metadata_global_autocopy   = 1;
124 static int metadata_streams_autocopy  = 1;
125 static int metadata_chapters_autocopy = 1;
126
127 static ChapterMap *chapter_maps = NULL;
128 static int nb_chapter_maps;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width  = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
139 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
140 static AVRational frame_rate;
141 static float video_qscale = 0;
142 static uint16_t *intra_matrix = NULL;
143 static uint16_t *inter_matrix = NULL;
144 static const char *video_rc_override_string=NULL;
145 static int video_disable = 0;
146 static int video_discard = 0;
147 static char *video_codec_name = NULL;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quality = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int loop_input = 0;
156 static int loop_output = AVFMT_NOOUTPUTLOOP;
157 static int qp_hist = 0;
158 #if CONFIG_AVFILTER
159 static char *vfilters = NULL;
160 #endif
161
162 static int intra_only = 0;
163 static int audio_sample_rate = 0;
164 #define QSCALE_NONE -99999
165 static float audio_qscale = QSCALE_NONE;
166 static int audio_disable = 0;
167 static int audio_channels = 0;
168 static char  *audio_codec_name = NULL;
169 static unsigned int audio_codec_tag = 0;
170 static char *audio_language = NULL;
171
172 static int subtitle_disable = 0;
173 static char *subtitle_codec_name = NULL;
174 static char *subtitle_language = NULL;
175 static unsigned int subtitle_codec_tag = 0;
176
177 static int data_disable = 0;
178 static char *data_codec_name = NULL;
179 static unsigned int data_codec_tag = 0;
180
181 static float mux_preload= 0.5;
182 static float mux_max_delay= 0.7;
183
184 static int64_t recording_time = INT64_MAX;
185 static int64_t start_time = 0;
186 static int64_t recording_timestamp = 0;
187 static int64_t input_ts_offset = 0;
188 static int file_overwrite = 0;
189 static AVDictionary *metadata;
190 static int do_benchmark = 0;
191 static int do_hex_dump = 0;
192 static int do_pkt_dump = 0;
193 static int do_psnr = 0;
194 static int do_pass = 0;
195 static char *pass_logfilename_prefix = NULL;
196 static int audio_stream_copy = 0;
197 static int video_stream_copy = 0;
198 static int subtitle_stream_copy = 0;
199 static int data_stream_copy = 0;
200 static int video_sync_method= -1;
201 static int audio_sync_method= 0;
202 static float audio_drift_threshold= 0.1;
203 static int copy_ts= 0;
204 static int copy_tb;
205 static int opt_shortest = 0;
206 static char *vstats_filename;
207 static FILE *vstats_file;
208 static int opt_programid = 0;
209 static int copy_initial_nonkeyframes = 0;
210
211 static int rate_emu = 0;
212
213 static int audio_volume = 256;
214
215 static int exit_on_error = 0;
216 static int using_stdin = 0;
217 static int verbose = 1;
218 static int thread_count= 1;
219 static int64_t video_size = 0;
220 static int64_t audio_size = 0;
221 static int64_t extra_size = 0;
222 static int nb_frames_dup = 0;
223 static int nb_frames_drop = 0;
224 static int input_sync;
225 static uint64_t limit_filesize = 0;
226 static int force_fps = 0;
227 static char *forced_key_frames = NULL;
228
229 static float dts_delta_threshold = 10;
230
231 static int64_t timer_start;
232
233 static uint8_t *audio_buf;
234 static uint8_t *audio_out;
235 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
236
237 static short *samples;
238
239 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
240 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
241 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
242
243 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
244
245 struct InputStream;
246
247 typedef struct OutputStream {
248     int file_index;          /* file index */
249     int index;               /* stream index in the output file */
250     int source_index;        /* InputStream index */
251     AVStream *st;            /* stream in the output file */
252     int encoding_needed;     /* true if encoding needed for this stream */
253     int frame_number;
254     /* input pts and corresponding output pts
255        for A/V sync */
256     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
257     struct InputStream *sync_ist; /* input stream to sync against */
258     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
259     AVBitStreamFilterContext *bitstream_filters;
260     AVCodec *enc;
261
262     /* video only */
263     int video_resample;
264     AVFrame pict_tmp;      /* temporary image for resampling */
265     struct SwsContext *img_resample_ctx; /* for image resampling */
266     int resample_height;
267     int resample_width;
268     int resample_pix_fmt;
269     AVRational frame_rate;
270
271     float frame_aspect_ratio;
272
273     /* forced key frames */
274     int64_t *forced_kf_pts;
275     int forced_kf_count;
276     int forced_kf_index;
277
278     /* audio only */
279     int audio_resample;
280     ReSampleContext *resample; /* for audio resampling */
281     int resample_sample_fmt;
282     int resample_channels;
283     int resample_sample_rate;
284     int reformat_pair;
285     AVAudioConvert *reformat_ctx;
286     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
287     FILE *logfile;
288
289 #if CONFIG_AVFILTER
290     AVFilterContext *output_video_filter;
291     AVFilterContext *input_video_filter;
292     AVFilterBufferRef *picref;
293     char *avfilter;
294     AVFilterGraph *graph;
295 #endif
296
297    int sws_flags;
298 } OutputStream;
299
300 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
301 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
302
303 typedef struct InputStream {
304     int file_index;
305     AVStream *st;
306     int discard;             /* true if stream data should be discarded */
307     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
308     AVCodec *dec;
309
310     int64_t       start;     /* time when read started */
311     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
312                                 is not defined */
313     int64_t       pts;       /* current pts */
314     PtsCorrectionContext pts_ctx;
315     double ts_scale;
316     int is_start;            /* is 1 at the start and after a discontinuity */
317     int showed_multi_packet_warning;
318     int is_past_recording_time;
319 } InputStream;
320
321 typedef struct InputFile {
322     AVFormatContext *ctx;
323     int eof_reached;      /* true if eof reached */
324     int ist_index;        /* index of first stream in ist_table */
325     int buffer_size;      /* current total buffer size */
326     int64_t ts_offset;
327 } InputFile;
328
329 static InputStream *input_streams = NULL;
330 static int         nb_input_streams = 0;
331 static InputFile   *input_files   = NULL;
332 static int         nb_input_files   = 0;
333
334 #if CONFIG_AVFILTER
335
336 static int configure_video_filters(InputStream *ist, OutputStream *ost)
337 {
338     AVFilterContext *last_filter, *filter;
339     /** filter graph containing all filters including input & output */
340     AVCodecContext *codec = ost->st->codec;
341     AVCodecContext *icodec = ist->st->codec;
342     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
343     AVRational sample_aspect_ratio;
344     char args[255];
345     int ret;
346
347     ost->graph = avfilter_graph_alloc();
348
349     if (ist->st->sample_aspect_ratio.num){
350         sample_aspect_ratio = ist->st->sample_aspect_ratio;
351     }else
352         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
353
354     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
355              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
356              sample_aspect_ratio.num, sample_aspect_ratio.den);
357
358     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
359                                        "src", args, NULL, ost->graph);
360     if (ret < 0)
361         return ret;
362     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
363                                        "out", NULL, &ffsink_ctx, ost->graph);
364     if (ret < 0)
365         return ret;
366     last_filter = ost->input_video_filter;
367
368     if (codec->width  != icodec->width || codec->height != icodec->height) {
369         snprintf(args, 255, "%d:%d:flags=0x%X",
370                  codec->width,
371                  codec->height,
372                  ost->sws_flags);
373         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
374                                                 NULL, args, NULL, ost->graph)) < 0)
375             return ret;
376         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
377             return ret;
378         last_filter = filter;
379     }
380
381     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
382     ost->graph->scale_sws_opts = av_strdup(args);
383
384     if (ost->avfilter) {
385         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
386         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
387
388         outputs->name    = av_strdup("in");
389         outputs->filter_ctx = last_filter;
390         outputs->pad_idx = 0;
391         outputs->next    = NULL;
392
393         inputs->name    = av_strdup("out");
394         inputs->filter_ctx = ost->output_video_filter;
395         inputs->pad_idx = 0;
396         inputs->next    = NULL;
397
398         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
399             return ret;
400         av_freep(&ost->avfilter);
401     } else {
402         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
403             return ret;
404     }
405
406     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
407         return ret;
408
409     codec->width  = ost->output_video_filter->inputs[0]->w;
410     codec->height = ost->output_video_filter->inputs[0]->h;
411     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
412         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
413         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
414         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
415
416     return 0;
417 }
418 #endif /* CONFIG_AVFILTER */
419
420 static void term_exit(void)
421 {
422     av_log(NULL, AV_LOG_QUIET, "");
423 }
424
425 static volatile int received_sigterm = 0;
426 static volatile int received_nb_signals = 0;
427
428 static void
429 sigterm_handler(int sig)
430 {
431     received_sigterm = sig;
432     received_nb_signals++;
433     term_exit();
434 }
435
436 static void term_init(void)
437 {
438     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
439     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
440 #ifdef SIGXCPU
441     signal(SIGXCPU, sigterm_handler);
442 #endif
443 }
444
445 static int decode_interrupt_cb(void)
446 {
447     return received_nb_signals > 1;
448 }
449
450 static int ffmpeg_exit(int ret)
451 {
452     int i;
453
454     /* close files */
455     for(i=0;i<nb_output_files;i++) {
456         AVFormatContext *s = output_files[i];
457         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
458             avio_close(s->pb);
459         avformat_free_context(s);
460         av_free(output_streams_for_file[i]);
461         av_dict_free(&output_opts[i]);
462     }
463     for(i=0;i<nb_input_files;i++) {
464         av_close_input_file(input_files[i].ctx);
465     }
466
467     av_free(intra_matrix);
468     av_free(inter_matrix);
469
470     if (vstats_file)
471         fclose(vstats_file);
472     av_free(vstats_filename);
473
474     av_free(streamid_map);
475     av_free(stream_maps);
476     av_free(meta_data_maps);
477
478     av_freep(&input_streams);
479     av_freep(&input_files);
480
481     av_free(video_codec_name);
482     av_free(audio_codec_name);
483     av_free(subtitle_codec_name);
484     av_free(data_codec_name);
485
486     uninit_opts();
487     av_free(audio_buf);
488     av_free(audio_out);
489     allocated_audio_buf_size= allocated_audio_out_size= 0;
490     av_free(samples);
491
492 #if CONFIG_AVFILTER
493     avfilter_uninit();
494 #endif
495
496     if (received_sigterm) {
497         fprintf(stderr,
498             "Received signal %d: terminating.\n",
499             (int) received_sigterm);
500         exit (255);
501     }
502
503     exit(ret); /* not all OS-es handle main() return value */
504     return ret;
505 }
506
507 static void assert_avoptions(AVDictionary *m)
508 {
509     AVDictionaryEntry *t;
510     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
511         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
512         ffmpeg_exit(1);
513     }
514 }
515
516 /* similar to ff_dynarray_add() and av_fast_realloc() */
517 static void *grow_array(void *array, int elem_size, int *size, int new_size)
518 {
519     if (new_size >= INT_MAX / elem_size) {
520         fprintf(stderr, "Array too big.\n");
521         ffmpeg_exit(1);
522     }
523     if (*size < new_size) {
524         uint8_t *tmp = av_realloc(array, new_size*elem_size);
525         if (!tmp) {
526             fprintf(stderr, "Could not alloc buffer.\n");
527             ffmpeg_exit(1);
528         }
529         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
530         *size = new_size;
531         return tmp;
532     }
533     return array;
534 }
535
536 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
537 {
538     if(codec && codec->sample_fmts){
539         const enum AVSampleFormat *p= codec->sample_fmts;
540         for(; *p!=-1; p++){
541             if(*p == st->codec->sample_fmt)
542                 break;
543         }
544         if (*p == -1) {
545             av_log(NULL, AV_LOG_WARNING,
546                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
547                    av_get_sample_fmt_name(st->codec->sample_fmt),
548                    codec->name,
549                    av_get_sample_fmt_name(codec->sample_fmts[0]));
550             st->codec->sample_fmt = codec->sample_fmts[0];
551         }
552     }
553 }
554
555 /**
556  * Update the requested input sample format based on the output sample format.
557  * This is currently only used to request float output from decoders which
558  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
559  * Ideally this will be removed in the future when decoders do not do format
560  * conversion and only output in their native format.
561  */
562 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
563                               AVCodecContext *enc)
564 {
565     /* if sample formats match or a decoder sample format has already been
566        requested, just return */
567     if (enc->sample_fmt == dec->sample_fmt ||
568         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
569         return;
570
571     /* if decoder supports more than one output format */
572     if (dec_codec && dec_codec->sample_fmts &&
573         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
574         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
575         const enum AVSampleFormat *p;
576         int min_dec = -1, min_inc = -1;
577
578         /* find a matching sample format in the encoder */
579         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
580             if (*p == enc->sample_fmt) {
581                 dec->request_sample_fmt = *p;
582                 return;
583             } else if (*p > enc->sample_fmt) {
584                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
585             } else
586                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
587         }
588
589         /* if none match, provide the one that matches quality closest */
590         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
591                                   enc->sample_fmt - min_dec;
592     }
593 }
594
595 static void choose_sample_rate(AVStream *st, AVCodec *codec)
596 {
597     if(codec && codec->supported_samplerates){
598         const int *p= codec->supported_samplerates;
599         int best=0;
600         int best_dist=INT_MAX;
601         for(; *p; p++){
602             int dist= abs(st->codec->sample_rate - *p);
603             if(dist < best_dist){
604                 best_dist= dist;
605                 best= *p;
606             }
607         }
608         if(best_dist){
609             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
610         }
611         st->codec->sample_rate= best;
612     }
613 }
614
615 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
616 {
617     if(codec && codec->pix_fmts){
618         const enum PixelFormat *p= codec->pix_fmts;
619         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
620             if(st->codec->codec_id==CODEC_ID_MJPEG){
621                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
622             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
623                 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};
624             }
625         }
626         for(; *p!=-1; p++){
627             if(*p == st->codec->pix_fmt)
628                 break;
629         }
630         if (*p == -1) {
631             if(st->codec->pix_fmt != PIX_FMT_NONE)
632                 av_log(NULL, AV_LOG_WARNING,
633                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
634                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
635                         codec->name,
636                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
637             st->codec->pix_fmt = codec->pix_fmts[0];
638         }
639     }
640 }
641
642 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
643 {
644     OutputStream *ost;
645     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
646     int idx      = oc->nb_streams - 1;
647
648     if (!st) {
649         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
650         ffmpeg_exit(1);
651     }
652
653     output_streams_for_file[file_idx] =
654         grow_array(output_streams_for_file[file_idx],
655                    sizeof(*output_streams_for_file[file_idx]),
656                    &nb_output_streams_for_file[file_idx],
657                    oc->nb_streams);
658     ost = output_streams_for_file[file_idx][idx] =
659         av_mallocz(sizeof(OutputStream));
660     if (!ost) {
661         fprintf(stderr, "Could not alloc output stream\n");
662         ffmpeg_exit(1);
663     }
664     ost->file_index = file_idx;
665     ost->index = idx;
666     ost->st    = st;
667     ost->enc   = codec;
668
669     avcodec_get_context_defaults3(st->codec, codec);
670
671     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
672     return ost;
673 }
674
675 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
676 {
677     int i, err;
678     AVFormatContext *ic = NULL;
679     int nopts = 0;
680
681     err = avformat_open_input(&ic, filename, NULL, NULL);
682     if (err < 0)
683         return err;
684     /* copy stream format */
685     for(i=0;i<ic->nb_streams;i++) {
686         AVStream *st;
687         OutputStream *ost;
688         AVCodec *codec;
689
690         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
691         ost   = new_output_stream(s, nb_output_files, codec);
692         st    = ost->st;
693
694         // FIXME: a more elegant solution is needed
695         memcpy(st, ic->streams[i], sizeof(AVStream));
696         st->info = NULL;
697         avcodec_copy_context(st->codec, ic->streams[i]->codec);
698
699         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
700             if (audio_stream_copy) {
701                 st->stream_copy = 1;
702             } else
703                 choose_sample_fmt(st, codec);
704         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
705             if (video_stream_copy) {
706                 st->stream_copy = 1;
707             } else
708                 choose_pixel_fmt(st, codec);
709         }
710
711         if(st->codec->flags & CODEC_FLAG_BITEXACT)
712             nopts = 1;
713     }
714
715     if (!nopts)
716         s->timestamp = av_gettime();
717
718     av_close_input_file(ic);
719     return 0;
720 }
721
722 static double
723 get_sync_ipts(const OutputStream *ost)
724 {
725     const InputStream *ist = ost->sync_ist;
726     return (double)(ist->pts - start_time)/AV_TIME_BASE;
727 }
728
729 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
730     int ret;
731
732     while(bsfc){
733         AVPacket new_pkt= *pkt;
734         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
735                                           &new_pkt.data, &new_pkt.size,
736                                           pkt->data, pkt->size,
737                                           pkt->flags & AV_PKT_FLAG_KEY);
738         if(a>0){
739             av_free_packet(pkt);
740             new_pkt.destruct= av_destruct_packet;
741         } else if(a<0){
742             fprintf(stderr, "%s failed for stream %d, codec %s",
743                     bsfc->filter->name, pkt->stream_index,
744                     avctx->codec ? avctx->codec->name : "copy");
745             print_error("", a);
746             if (exit_on_error)
747                 ffmpeg_exit(1);
748         }
749         *pkt= new_pkt;
750
751         bsfc= bsfc->next;
752     }
753
754     ret= av_interleaved_write_frame(s, pkt);
755     if(ret < 0){
756         print_error("av_interleaved_write_frame()", ret);
757         ffmpeg_exit(1);
758     }
759 }
760
761 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
762
763 static void do_audio_out(AVFormatContext *s,
764                          OutputStream *ost,
765                          InputStream *ist,
766                          unsigned char *buf, int size)
767 {
768     uint8_t *buftmp;
769     int64_t audio_out_size, audio_buf_size;
770     int64_t allocated_for_size= size;
771
772     int size_out, frame_bytes, ret, resample_changed;
773     AVCodecContext *enc= ost->st->codec;
774     AVCodecContext *dec= ist->st->codec;
775     int osize = av_get_bytes_per_sample(enc->sample_fmt);
776     int isize = av_get_bytes_per_sample(dec->sample_fmt);
777     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
778
779 need_realloc:
780     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
781     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
782     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
783     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
784     audio_buf_size*= osize*enc->channels;
785
786     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
787     if(coded_bps > 8*osize)
788         audio_out_size= audio_out_size * coded_bps / (8*osize);
789     audio_out_size += FF_MIN_BUFFER_SIZE;
790
791     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
792         fprintf(stderr, "Buffer sizes too large\n");
793         ffmpeg_exit(1);
794     }
795
796     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
797     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
798     if (!audio_buf || !audio_out){
799         fprintf(stderr, "Out of memory in do_audio_out\n");
800         ffmpeg_exit(1);
801     }
802
803     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
804         ost->audio_resample = 1;
805
806     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
807                        ost->resample_channels    != dec->channels   ||
808                        ost->resample_sample_rate != dec->sample_rate;
809
810     if ((ost->audio_resample && !ost->resample) || resample_changed) {
811         if (resample_changed) {
812             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",
813                    ist->file_index, ist->st->index,
814                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
815                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
816             ost->resample_sample_fmt  = dec->sample_fmt;
817             ost->resample_channels    = dec->channels;
818             ost->resample_sample_rate = dec->sample_rate;
819             if (ost->resample)
820                 audio_resample_close(ost->resample);
821         }
822         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
823         if (audio_sync_method <= 1 &&
824             ost->resample_sample_fmt  == enc->sample_fmt &&
825             ost->resample_channels    == enc->channels   &&
826             ost->resample_sample_rate == enc->sample_rate) {
827             ost->resample = NULL;
828             ost->audio_resample = 0;
829         } else if (ost->audio_resample) {
830             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
831                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
832             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
833                                                    enc->sample_rate, dec->sample_rate,
834                                                    enc->sample_fmt,  dec->sample_fmt,
835                                                    16, 10, 0, 0.8);
836             if (!ost->resample) {
837                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
838                         dec->channels, dec->sample_rate,
839                         enc->channels, enc->sample_rate);
840                 ffmpeg_exit(1);
841             }
842         }
843     }
844
845 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
846     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
847         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
848         if (ost->reformat_ctx)
849             av_audio_convert_free(ost->reformat_ctx);
850         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
851                                                    dec->sample_fmt, 1, NULL, 0);
852         if (!ost->reformat_ctx) {
853             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
854                 av_get_sample_fmt_name(dec->sample_fmt),
855                 av_get_sample_fmt_name(enc->sample_fmt));
856             ffmpeg_exit(1);
857         }
858         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
859     }
860
861     if(audio_sync_method){
862         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
863                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
864         double idelta= delta*dec->sample_rate / enc->sample_rate;
865         int byte_delta= ((int)idelta)*2*dec->channels;
866
867         //FIXME resample delay
868         if(fabs(delta) > 50){
869             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
870                 if(byte_delta < 0){
871                     byte_delta= FFMAX(byte_delta, -size);
872                     size += byte_delta;
873                     buf  -= byte_delta;
874                     if(verbose > 2)
875                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
876                     if(!size)
877                         return;
878                     ist->is_start=0;
879                 }else{
880                     static uint8_t *input_tmp= NULL;
881                     input_tmp= av_realloc(input_tmp, byte_delta + size);
882
883                     if(byte_delta > allocated_for_size - size){
884                         allocated_for_size= byte_delta + (int64_t)size;
885                         goto need_realloc;
886                     }
887                     ist->is_start=0;
888
889                     memset(input_tmp, 0, byte_delta);
890                     memcpy(input_tmp + byte_delta, buf, size);
891                     buf= input_tmp;
892                     size += byte_delta;
893                     if(verbose > 2)
894                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
895                 }
896             }else if(audio_sync_method>1){
897                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
898                 av_assert0(ost->audio_resample);
899                 if(verbose > 2)
900                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
901 //                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));
902                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
903             }
904         }
905     }else
906         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
907                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
908
909     if (ost->audio_resample) {
910         buftmp = audio_buf;
911         size_out = audio_resample(ost->resample,
912                                   (short *)buftmp, (short *)buf,
913                                   size / (dec->channels * isize));
914         size_out = size_out * enc->channels * osize;
915     } else {
916         buftmp = buf;
917         size_out = size;
918     }
919
920     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
921         const void *ibuf[6]= {buftmp};
922         void *obuf[6]= {audio_buf};
923         int istride[6]= {isize};
924         int ostride[6]= {osize};
925         int len= size_out/istride[0];
926         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
927             printf("av_audio_convert() failed\n");
928             if (exit_on_error)
929                 ffmpeg_exit(1);
930             return;
931         }
932         buftmp = audio_buf;
933         size_out = len*osize;
934     }
935
936     /* now encode as many frames as possible */
937     if (enc->frame_size > 1) {
938         /* output resampled raw samples */
939         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
940             fprintf(stderr, "av_fifo_realloc2() failed\n");
941             ffmpeg_exit(1);
942         }
943         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
944
945         frame_bytes = enc->frame_size * osize * enc->channels;
946
947         while (av_fifo_size(ost->fifo) >= frame_bytes) {
948             AVPacket pkt;
949             av_init_packet(&pkt);
950
951             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
952
953             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
954
955             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
956                                        (short *)audio_buf);
957             if (ret < 0) {
958                 fprintf(stderr, "Audio encoding failed\n");
959                 ffmpeg_exit(1);
960             }
961             audio_size += ret;
962             pkt.stream_index= ost->index;
963             pkt.data= audio_out;
964             pkt.size= ret;
965             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
966                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
967             pkt.flags |= AV_PKT_FLAG_KEY;
968             write_frame(s, &pkt, enc, ost->bitstream_filters);
969
970             ost->sync_opts += enc->frame_size;
971         }
972     } else {
973         AVPacket pkt;
974         av_init_packet(&pkt);
975
976         ost->sync_opts += size_out / (osize * enc->channels);
977
978         /* output a pcm frame */
979         /* determine the size of the coded buffer */
980         size_out /= osize;
981         if (coded_bps)
982             size_out = size_out*coded_bps/8;
983
984         if(size_out > audio_out_size){
985             fprintf(stderr, "Internal error, buffer size too small\n");
986             ffmpeg_exit(1);
987         }
988
989         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
990         ret = avcodec_encode_audio(enc, audio_out, size_out,
991                                    (short *)buftmp);
992         if (ret < 0) {
993             fprintf(stderr, "Audio encoding failed\n");
994             ffmpeg_exit(1);
995         }
996         audio_size += ret;
997         pkt.stream_index= ost->index;
998         pkt.data= audio_out;
999         pkt.size= ret;
1000         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1001             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1002         pkt.flags |= AV_PKT_FLAG_KEY;
1003         write_frame(s, &pkt, enc, ost->bitstream_filters);
1004     }
1005 }
1006
1007 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1008 {
1009     AVCodecContext *dec;
1010     AVPicture *picture2;
1011     AVPicture picture_tmp;
1012     uint8_t *buf = 0;
1013
1014     dec = ist->st->codec;
1015
1016     /* deinterlace : must be done before any resize */
1017     if (do_deinterlace) {
1018         int size;
1019
1020         /* create temporary picture */
1021         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1022         buf = av_malloc(size);
1023         if (!buf)
1024             return;
1025
1026         picture2 = &picture_tmp;
1027         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1028
1029         if(avpicture_deinterlace(picture2, picture,
1030                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1031             /* if error, do not deinterlace */
1032             fprintf(stderr, "Deinterlacing failed\n");
1033             av_free(buf);
1034             buf = NULL;
1035             picture2 = picture;
1036         }
1037     } else {
1038         picture2 = picture;
1039     }
1040
1041     if (picture != picture2)
1042         *picture = *picture2;
1043     *bufp = buf;
1044 }
1045
1046 /* we begin to correct av delay at this threshold */
1047 #define AV_DELAY_MAX 0.100
1048
1049 static void do_subtitle_out(AVFormatContext *s,
1050                             OutputStream *ost,
1051                             InputStream *ist,
1052                             AVSubtitle *sub,
1053                             int64_t pts)
1054 {
1055     static uint8_t *subtitle_out = NULL;
1056     int subtitle_out_max_size = 1024 * 1024;
1057     int subtitle_out_size, nb, i;
1058     AVCodecContext *enc;
1059     AVPacket pkt;
1060
1061     if (pts == AV_NOPTS_VALUE) {
1062         fprintf(stderr, "Subtitle packets must have a pts\n");
1063         if (exit_on_error)
1064             ffmpeg_exit(1);
1065         return;
1066     }
1067
1068     enc = ost->st->codec;
1069
1070     if (!subtitle_out) {
1071         subtitle_out = av_malloc(subtitle_out_max_size);
1072     }
1073
1074     /* Note: DVB subtitle need one packet to draw them and one other
1075        packet to clear them */
1076     /* XXX: signal it in the codec context ? */
1077     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1078         nb = 2;
1079     else
1080         nb = 1;
1081
1082     for(i = 0; i < nb; i++) {
1083         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1084         // start_display_time is required to be 0
1085         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1086         sub->end_display_time -= sub->start_display_time;
1087         sub->start_display_time = 0;
1088         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1089                                                     subtitle_out_max_size, sub);
1090         if (subtitle_out_size < 0) {
1091             fprintf(stderr, "Subtitle encoding failed\n");
1092             ffmpeg_exit(1);
1093         }
1094
1095         av_init_packet(&pkt);
1096         pkt.stream_index = ost->index;
1097         pkt.data = subtitle_out;
1098         pkt.size = subtitle_out_size;
1099         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1100         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1101             /* XXX: the pts correction is handled here. Maybe handling
1102                it in the codec would be better */
1103             if (i == 0)
1104                 pkt.pts += 90 * sub->start_display_time;
1105             else
1106                 pkt.pts += 90 * sub->end_display_time;
1107         }
1108         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1109     }
1110 }
1111
1112 static int bit_buffer_size= 1024*256;
1113 static uint8_t *bit_buffer= NULL;
1114
1115 static void do_video_out(AVFormatContext *s,
1116                          OutputStream *ost,
1117                          InputStream *ist,
1118                          AVFrame *in_picture,
1119                          int *frame_size, float quality)
1120 {
1121     int nb_frames, i, ret, resample_changed;
1122     AVFrame *final_picture, *formatted_picture;
1123     AVCodecContext *enc, *dec;
1124     double sync_ipts;
1125
1126     enc = ost->st->codec;
1127     dec = ist->st->codec;
1128
1129     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1130
1131     /* by default, we output a single frame */
1132     nb_frames = 1;
1133
1134     *frame_size = 0;
1135
1136     if(video_sync_method){
1137         double vdelta = sync_ipts - ost->sync_opts;
1138         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1139         if (vdelta < -1.1)
1140             nb_frames = 0;
1141         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1142             if(vdelta<=-0.6){
1143                 nb_frames=0;
1144             }else if(vdelta>0.6)
1145                 ost->sync_opts= lrintf(sync_ipts);
1146         }else if (vdelta > 1.1)
1147             nb_frames = lrintf(vdelta);
1148 //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);
1149         if (nb_frames == 0){
1150             ++nb_frames_drop;
1151             if (verbose>2)
1152                 fprintf(stderr, "*** drop!\n");
1153         }else if (nb_frames > 1) {
1154             nb_frames_dup += nb_frames - 1;
1155             if (verbose>2)
1156                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1157         }
1158     }else
1159         ost->sync_opts= lrintf(sync_ipts);
1160
1161     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1162     if (nb_frames <= 0)
1163         return;
1164
1165     formatted_picture = in_picture;
1166     final_picture = formatted_picture;
1167
1168     resample_changed = ost->resample_width   != dec->width  ||
1169                        ost->resample_height  != dec->height ||
1170                        ost->resample_pix_fmt != dec->pix_fmt;
1171
1172     if (resample_changed) {
1173         av_log(NULL, AV_LOG_INFO,
1174                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1175                ist->file_index, ist->st->index,
1176                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1177                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1178         if(!ost->video_resample)
1179             ffmpeg_exit(1);
1180     }
1181
1182 #if !CONFIG_AVFILTER
1183     if (ost->video_resample) {
1184         final_picture = &ost->pict_tmp;
1185         if (resample_changed) {
1186             /* initialize a new scaler context */
1187             sws_freeContext(ost->img_resample_ctx);
1188             ost->img_resample_ctx = sws_getContext(
1189                 ist->st->codec->width,
1190                 ist->st->codec->height,
1191                 ist->st->codec->pix_fmt,
1192                 ost->st->codec->width,
1193                 ost->st->codec->height,
1194                 ost->st->codec->pix_fmt,
1195                 ost->sws_flags, NULL, NULL, NULL);
1196             if (ost->img_resample_ctx == NULL) {
1197                 fprintf(stderr, "Cannot get resampling context\n");
1198                 ffmpeg_exit(1);
1199             }
1200         }
1201         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1202               0, ost->resample_height, final_picture->data, final_picture->linesize);
1203     }
1204 #endif
1205
1206     /* duplicates frame if needed */
1207     for(i=0;i<nb_frames;i++) {
1208         AVPacket pkt;
1209         av_init_packet(&pkt);
1210         pkt.stream_index= ost->index;
1211
1212         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1213             /* raw pictures are written as AVPicture structure to
1214                avoid any copies. We support temorarily the older
1215                method. */
1216             AVFrame* old_frame = enc->coded_frame;
1217             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1218             pkt.data= (uint8_t *)final_picture;
1219             pkt.size=  sizeof(AVPicture);
1220             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1221             pkt.flags |= AV_PKT_FLAG_KEY;
1222
1223             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1224             enc->coded_frame = old_frame;
1225         } else {
1226             AVFrame big_picture;
1227
1228             big_picture= *final_picture;
1229             /* better than nothing: use input picture interlaced
1230                settings */
1231             big_picture.interlaced_frame = in_picture->interlaced_frame;
1232             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1233                 if(top_field_first == -1)
1234                     big_picture.top_field_first = in_picture->top_field_first;
1235                 else
1236                     big_picture.top_field_first = top_field_first;
1237             }
1238
1239             /* handles sameq here. This is not correct because it may
1240                not be a global option */
1241             big_picture.quality = quality;
1242             if(!me_threshold)
1243                 big_picture.pict_type = 0;
1244 //            big_picture.pts = AV_NOPTS_VALUE;
1245             big_picture.pts= ost->sync_opts;
1246 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1247 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1248             if (ost->forced_kf_index < ost->forced_kf_count &&
1249                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1250                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1251                 ost->forced_kf_index++;
1252             }
1253             ret = avcodec_encode_video(enc,
1254                                        bit_buffer, bit_buffer_size,
1255                                        &big_picture);
1256             if (ret < 0) {
1257                 fprintf(stderr, "Video encoding failed\n");
1258                 ffmpeg_exit(1);
1259             }
1260
1261             if(ret>0){
1262                 pkt.data= bit_buffer;
1263                 pkt.size= ret;
1264                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1265                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1266 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1267    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1268    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1269
1270                 if(enc->coded_frame->key_frame)
1271                     pkt.flags |= AV_PKT_FLAG_KEY;
1272                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1273                 *frame_size = ret;
1274                 video_size += ret;
1275                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1276                 //        enc->frame_number-1, ret, enc->pict_type);
1277                 /* if two pass, output log */
1278                 if (ost->logfile && enc->stats_out) {
1279                     fprintf(ost->logfile, "%s", enc->stats_out);
1280                 }
1281             }
1282         }
1283         ost->sync_opts++;
1284         ost->frame_number++;
1285     }
1286 }
1287
1288 static double psnr(double d){
1289     return -10.0*log(d)/log(10.0);
1290 }
1291
1292 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1293                            int frame_size)
1294 {
1295     AVCodecContext *enc;
1296     int frame_number;
1297     double ti1, bitrate, avg_bitrate;
1298
1299     /* this is executed just the first time do_video_stats is called */
1300     if (!vstats_file) {
1301         vstats_file = fopen(vstats_filename, "w");
1302         if (!vstats_file) {
1303             perror("fopen");
1304             ffmpeg_exit(1);
1305         }
1306     }
1307
1308     enc = ost->st->codec;
1309     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1310         frame_number = ost->frame_number;
1311         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1312         if (enc->flags&CODEC_FLAG_PSNR)
1313             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1314
1315         fprintf(vstats_file,"f_size= %6d ", frame_size);
1316         /* compute pts value */
1317         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1318         if (ti1 < 0.01)
1319             ti1 = 0.01;
1320
1321         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1322         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1323         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1324             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1325         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1326     }
1327 }
1328
1329 static void print_report(AVFormatContext **output_files,
1330                          OutputStream **ost_table, int nb_ostreams,
1331                          int is_last_report)
1332 {
1333     char buf[1024];
1334     OutputStream *ost;
1335     AVFormatContext *oc;
1336     int64_t total_size;
1337     AVCodecContext *enc;
1338     int frame_number, vid, i;
1339     double bitrate, ti1, pts;
1340     static int64_t last_time = -1;
1341     static int qp_histogram[52];
1342
1343     if (!is_last_report) {
1344         int64_t cur_time;
1345         /* display the report every 0.5 seconds */
1346         cur_time = av_gettime();
1347         if (last_time == -1) {
1348             last_time = cur_time;
1349             return;
1350         }
1351         if ((cur_time - last_time) < 500000)
1352             return;
1353         last_time = cur_time;
1354     }
1355
1356
1357     oc = output_files[0];
1358
1359     total_size = avio_size(oc->pb);
1360     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1361         total_size= avio_tell(oc->pb);
1362
1363     buf[0] = '\0';
1364     ti1 = 1e10;
1365     vid = 0;
1366     for(i=0;i<nb_ostreams;i++) {
1367         float q = -1;
1368         ost = ost_table[i];
1369         enc = ost->st->codec;
1370         if (!ost->st->stream_copy && enc->coded_frame)
1371             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1372         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1373             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1374         }
1375         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1376             float t = (av_gettime()-timer_start) / 1000000.0;
1377
1378             frame_number = ost->frame_number;
1379             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1380                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1381             if(is_last_report)
1382                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1383             if(qp_hist){
1384                 int j;
1385                 int qp = lrintf(q);
1386                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1387                     qp_histogram[qp]++;
1388                 for(j=0; j<32; j++)
1389                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1390             }
1391             if (enc->flags&CODEC_FLAG_PSNR){
1392                 int j;
1393                 double error, error_sum=0;
1394                 double scale, scale_sum=0;
1395                 char type[3]= {'Y','U','V'};
1396                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1397                 for(j=0; j<3; j++){
1398                     if(is_last_report){
1399                         error= enc->error[j];
1400                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1401                     }else{
1402                         error= enc->coded_frame->error[j];
1403                         scale= enc->width*enc->height*255.0*255.0;
1404                     }
1405                     if(j) scale/=4;
1406                     error_sum += error;
1407                     scale_sum += scale;
1408                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1409                 }
1410                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1411             }
1412             vid = 1;
1413         }
1414         /* compute min output value */
1415         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1416         if ((pts < ti1) && (pts > 0))
1417             ti1 = pts;
1418     }
1419     if (ti1 < 0.01)
1420         ti1 = 0.01;
1421
1422     if (verbose > 0 || is_last_report) {
1423         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1424
1425         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1426             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1427             (double)total_size / 1024, ti1, bitrate);
1428
1429         if (nb_frames_dup || nb_frames_drop)
1430           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1431                   nb_frames_dup, nb_frames_drop);
1432
1433         if (verbose >= 0)
1434             fprintf(stderr, "%s    \r", buf);
1435
1436         fflush(stderr);
1437     }
1438
1439     if (is_last_report && verbose >= 0){
1440         int64_t raw= audio_size + video_size + extra_size;
1441         fprintf(stderr, "\n");
1442         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1443                 video_size/1024.0,
1444                 audio_size/1024.0,
1445                 extra_size/1024.0,
1446                 100.0*(total_size - raw)/raw
1447         );
1448     }
1449 }
1450
1451 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1452 {
1453     int fill_char = 0x00;
1454     if (sample_fmt == AV_SAMPLE_FMT_U8)
1455         fill_char = 0x80;
1456     memset(buf, fill_char, size);
1457 }
1458
1459 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1460 static int output_packet(InputStream *ist, int ist_index,
1461                          OutputStream **ost_table, int nb_ostreams,
1462                          const AVPacket *pkt)
1463 {
1464     AVFormatContext *os;
1465     OutputStream *ost;
1466     int ret, i;
1467     int got_output;
1468     AVFrame picture;
1469     void *buffer_to_free = NULL;
1470     static unsigned int samples_size= 0;
1471     AVSubtitle subtitle, *subtitle_to_free;
1472     int64_t pkt_pts = AV_NOPTS_VALUE;
1473 #if CONFIG_AVFILTER
1474     int frame_available;
1475 #endif
1476     float quality;
1477
1478     AVPacket avpkt;
1479     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1480
1481     if(ist->next_pts == AV_NOPTS_VALUE)
1482         ist->next_pts= ist->pts;
1483
1484     if (pkt == NULL) {
1485         /* EOF handling */
1486         av_init_packet(&avpkt);
1487         avpkt.data = NULL;
1488         avpkt.size = 0;
1489         goto handle_eof;
1490     } else {
1491         avpkt = *pkt;
1492     }
1493
1494     if(pkt->dts != AV_NOPTS_VALUE)
1495         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1496     if(pkt->pts != AV_NOPTS_VALUE)
1497         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1498
1499     //while we have more to decode or while the decoder did output something on EOF
1500     while (avpkt.size > 0 || (!pkt && got_output)) {
1501         uint8_t *data_buf, *decoded_data_buf;
1502         int data_size, decoded_data_size;
1503     handle_eof:
1504         ist->pts= ist->next_pts;
1505
1506         if(avpkt.size && avpkt.size != pkt->size &&
1507            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1508             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1509             ist->showed_multi_packet_warning=1;
1510         }
1511
1512         /* decode the packet if needed */
1513         decoded_data_buf = NULL; /* fail safe */
1514         decoded_data_size= 0;
1515         data_buf  = avpkt.data;
1516         data_size = avpkt.size;
1517         subtitle_to_free = NULL;
1518         if (ist->decoding_needed) {
1519             switch(ist->st->codec->codec_type) {
1520             case AVMEDIA_TYPE_AUDIO:{
1521                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1522                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1523                     av_free(samples);
1524                     samples= av_malloc(samples_size);
1525                 }
1526                 decoded_data_size= samples_size;
1527                     /* XXX: could avoid copy if PCM 16 bits with same
1528                        endianness as CPU */
1529                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1530                                             &avpkt);
1531                 if (ret < 0)
1532                     goto fail_decode;
1533                 avpkt.data += ret;
1534                 avpkt.size -= ret;
1535                 data_size   = ret;
1536                 got_output  = decoded_data_size > 0;
1537                 /* Some bug in mpeg audio decoder gives */
1538                 /* decoded_data_size < 0, it seems they are overflows */
1539                 if (!got_output) {
1540                     /* no audio frame */
1541                     continue;
1542                 }
1543                 decoded_data_buf = (uint8_t *)samples;
1544                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1545                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1546                 break;}
1547             case AVMEDIA_TYPE_VIDEO:
1548                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1549                     /* XXX: allocate picture correctly */
1550                     avcodec_get_frame_defaults(&picture);
1551                     avpkt.pts = pkt_pts;
1552                     avpkt.dts = ist->pts;
1553                     pkt_pts = AV_NOPTS_VALUE;
1554
1555                     ret = avcodec_decode_video2(ist->st->codec,
1556                                                 &picture, &got_output, &avpkt);
1557                     quality = same_quality ? picture.quality : 0;
1558                     if (ret < 0)
1559                         goto fail_decode;
1560                     if (!got_output) {
1561                         /* no picture yet */
1562                         goto discard_packet;
1563                     }
1564                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1565                     if (ist->st->codec->time_base.num != 0) {
1566                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1567                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1568                                           ist->st->codec->time_base.num * ticks) /
1569                             ist->st->codec->time_base.den;
1570                     }
1571                     avpkt.size = 0;
1572                     buffer_to_free = NULL;
1573                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1574                     break;
1575             case AVMEDIA_TYPE_SUBTITLE:
1576                 ret = avcodec_decode_subtitle2(ist->st->codec,
1577                                                &subtitle, &got_output, &avpkt);
1578                 if (ret < 0)
1579                     goto fail_decode;
1580                 if (!got_output) {
1581                     goto discard_packet;
1582                 }
1583                 subtitle_to_free = &subtitle;
1584                 avpkt.size = 0;
1585                 break;
1586             default:
1587                 goto fail_decode;
1588             }
1589         } else {
1590             switch(ist->st->codec->codec_type) {
1591             case AVMEDIA_TYPE_AUDIO:
1592                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1593                     ist->st->codec->sample_rate;
1594                 break;
1595             case AVMEDIA_TYPE_VIDEO:
1596                 if (ist->st->codec->time_base.num != 0) {
1597                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1598                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1599                                       ist->st->codec->time_base.num * ticks) /
1600                         ist->st->codec->time_base.den;
1601                 }
1602                 break;
1603             }
1604             ret = avpkt.size;
1605             avpkt.size = 0;
1606         }
1607
1608 #if CONFIG_AVFILTER
1609         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1610             for (i = 0; i < nb_ostreams; i++) {
1611                 ost = ost_table[i];
1612                 if (ost->input_video_filter && ost->source_index == ist_index) {
1613                     AVRational sar;
1614                     if (ist->st->sample_aspect_ratio.num)
1615                         sar = ist->st->sample_aspect_ratio;
1616                     else
1617                         sar = ist->st->codec->sample_aspect_ratio;
1618                     // add it to be filtered
1619                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1620                                              ist->pts,
1621                                              sar);
1622                 }
1623             }
1624         }
1625 #endif
1626
1627         // preprocess audio (volume)
1628         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1629             if (audio_volume != 256) {
1630                 short *volp;
1631                 volp = samples;
1632                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1633                     int v = ((*volp) * audio_volume + 128) >> 8;
1634                     if (v < -32768) v = -32768;
1635                     if (v >  32767) v = 32767;
1636                     *volp++ = v;
1637                 }
1638             }
1639         }
1640
1641         /* frame rate emulation */
1642         if (rate_emu) {
1643             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1644             int64_t now = av_gettime() - ist->start;
1645             if (pts > now)
1646                 usleep(pts - now);
1647         }
1648         /* if output time reached then transcode raw format,
1649            encode packets and output them */
1650         if (start_time == 0 || ist->pts >= start_time)
1651             for(i=0;i<nb_ostreams;i++) {
1652                 int frame_size;
1653
1654                 ost = ost_table[i];
1655                 if (ost->source_index == ist_index) {
1656 #if CONFIG_AVFILTER
1657                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1658                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1659                 while (frame_available) {
1660                     AVRational ist_pts_tb;
1661                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1662                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1663                     if (ost->picref)
1664                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1665 #endif
1666                     os = output_files[ost->file_index];
1667
1668                     /* set the input output pts pairs */
1669                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1670
1671                     if (ost->encoding_needed) {
1672                         av_assert0(ist->decoding_needed);
1673                         switch(ost->st->codec->codec_type) {
1674                         case AVMEDIA_TYPE_AUDIO:
1675                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1676                             break;
1677                         case AVMEDIA_TYPE_VIDEO:
1678 #if CONFIG_AVFILTER
1679                             if (ost->picref->video && !ost->frame_aspect_ratio)
1680                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1681 #endif
1682                             do_video_out(os, ost, ist, &picture, &frame_size,
1683                                          same_quality ? quality : ost->st->codec->global_quality);
1684                             if (vstats_filename && frame_size)
1685                                 do_video_stats(os, ost, frame_size);
1686                             break;
1687                         case AVMEDIA_TYPE_SUBTITLE:
1688                             do_subtitle_out(os, ost, ist, &subtitle,
1689                                             pkt->pts);
1690                             break;
1691                         default:
1692                             abort();
1693                         }
1694                     } else {
1695                         AVFrame avframe; //FIXME/XXX remove this
1696                         AVPacket opkt;
1697                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1698
1699                         av_init_packet(&opkt);
1700
1701                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1702 #if !CONFIG_AVFILTER
1703                             continue;
1704 #else
1705                             goto cont;
1706 #endif
1707
1708                         /* no reencoding needed : output the packet directly */
1709                         /* force the input stream PTS */
1710
1711                         avcodec_get_frame_defaults(&avframe);
1712                         ost->st->codec->coded_frame= &avframe;
1713                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1714
1715                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1716                             audio_size += data_size;
1717                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1718                             video_size += data_size;
1719                             ost->sync_opts++;
1720                         }
1721
1722                         opkt.stream_index= ost->index;
1723                         if(pkt->pts != AV_NOPTS_VALUE)
1724                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1725                         else
1726                             opkt.pts= AV_NOPTS_VALUE;
1727
1728                         if (pkt->dts == AV_NOPTS_VALUE)
1729                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1730                         else
1731                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1732                         opkt.dts -= ost_tb_start_time;
1733
1734                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1735                         opkt.flags= pkt->flags;
1736
1737                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1738                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1739                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1740                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1741                            ) {
1742                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1743                                 opkt.destruct= av_destruct_packet;
1744                         } else {
1745                             opkt.data = data_buf;
1746                             opkt.size = data_size;
1747                         }
1748
1749                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1750                         ost->st->codec->frame_number++;
1751                         ost->frame_number++;
1752                         av_free_packet(&opkt);
1753                     }
1754 #if CONFIG_AVFILTER
1755                     cont:
1756                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1757                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1758                     if (ost->picref)
1759                         avfilter_unref_buffer(ost->picref);
1760                 }
1761 #endif
1762                 }
1763             }
1764
1765         av_free(buffer_to_free);
1766         /* XXX: allocate the subtitles in the codec ? */
1767         if (subtitle_to_free) {
1768             avsubtitle_free(subtitle_to_free);
1769             subtitle_to_free = NULL;
1770         }
1771     }
1772  discard_packet:
1773     if (pkt == NULL) {
1774         /* EOF handling */
1775
1776         for(i=0;i<nb_ostreams;i++) {
1777             ost = ost_table[i];
1778             if (ost->source_index == ist_index) {
1779                 AVCodecContext *enc= ost->st->codec;
1780                 os = output_files[ost->file_index];
1781
1782                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1783                     continue;
1784                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1785                     continue;
1786
1787                 if (ost->encoding_needed) {
1788                     for(;;) {
1789                         AVPacket pkt;
1790                         int fifo_bytes;
1791                         av_init_packet(&pkt);
1792                         pkt.stream_index= ost->index;
1793
1794                         switch(ost->st->codec->codec_type) {
1795                         case AVMEDIA_TYPE_AUDIO:
1796                             fifo_bytes = av_fifo_size(ost->fifo);
1797                             ret = 0;
1798                             /* encode any samples remaining in fifo */
1799                             if (fifo_bytes > 0) {
1800                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1801                                 int fs_tmp = enc->frame_size;
1802
1803                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1804                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1805                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1806                                 } else { /* pad */
1807                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1808                                     if (allocated_audio_buf_size < frame_bytes)
1809                                         ffmpeg_exit(1);
1810                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1811                                 }
1812
1813                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1814                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1815                                                           ost->st->time_base.num, enc->sample_rate);
1816                                 enc->frame_size = fs_tmp;
1817                             }
1818                             if(ret <= 0) {
1819                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1820                             }
1821                             if (ret < 0) {
1822                                 fprintf(stderr, "Audio encoding failed\n");
1823                                 ffmpeg_exit(1);
1824                             }
1825                             audio_size += ret;
1826                             pkt.flags |= AV_PKT_FLAG_KEY;
1827                             break;
1828                         case AVMEDIA_TYPE_VIDEO:
1829                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1830                             if (ret < 0) {
1831                                 fprintf(stderr, "Video encoding failed\n");
1832                                 ffmpeg_exit(1);
1833                             }
1834                             video_size += ret;
1835                             if(enc->coded_frame && enc->coded_frame->key_frame)
1836                                 pkt.flags |= AV_PKT_FLAG_KEY;
1837                             if (ost->logfile && enc->stats_out) {
1838                                 fprintf(ost->logfile, "%s", enc->stats_out);
1839                             }
1840                             break;
1841                         default:
1842                             ret=-1;
1843                         }
1844
1845                         if(ret<=0)
1846                             break;
1847                         pkt.data= bit_buffer;
1848                         pkt.size= ret;
1849                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1850                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1851                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1852                     }
1853                 }
1854             }
1855         }
1856     }
1857
1858     return 0;
1859  fail_decode:
1860     return -1;
1861 }
1862
1863 static void print_sdp(AVFormatContext **avc, int n)
1864 {
1865     char sdp[2048];
1866
1867     av_sdp_create(avc, n, sdp, sizeof(sdp));
1868     printf("SDP:\n%s\n", sdp);
1869     fflush(stdout);
1870 }
1871
1872 static int copy_chapters(int infile, int outfile)
1873 {
1874     AVFormatContext *is = input_files[infile].ctx;
1875     AVFormatContext *os = output_files[outfile];
1876     int i;
1877
1878     for (i = 0; i < is->nb_chapters; i++) {
1879         AVChapter *in_ch = is->chapters[i], *out_ch;
1880         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1881                                       AV_TIME_BASE_Q, in_ch->time_base);
1882         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1883                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1884
1885
1886         if (in_ch->end < ts_off)
1887             continue;
1888         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1889             break;
1890
1891         out_ch = av_mallocz(sizeof(AVChapter));
1892         if (!out_ch)
1893             return AVERROR(ENOMEM);
1894
1895         out_ch->id        = in_ch->id;
1896         out_ch->time_base = in_ch->time_base;
1897         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1898         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1899
1900         if (metadata_chapters_autocopy)
1901             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1902
1903         os->nb_chapters++;
1904         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1905         if (!os->chapters)
1906             return AVERROR(ENOMEM);
1907         os->chapters[os->nb_chapters - 1] = out_ch;
1908     }
1909     return 0;
1910 }
1911
1912 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1913                                     AVCodecContext *avctx)
1914 {
1915     char *p;
1916     int n = 1, i;
1917     int64_t t;
1918
1919     for (p = kf; *p; p++)
1920         if (*p == ',')
1921             n++;
1922     ost->forced_kf_count = n;
1923     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1924     if (!ost->forced_kf_pts) {
1925         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1926         ffmpeg_exit(1);
1927     }
1928     for (i = 0; i < n; i++) {
1929         p = i ? strchr(p, ',') + 1 : kf;
1930         t = parse_time_or_die("force_key_frames", p, 1);
1931         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1932     }
1933 }
1934
1935 /*
1936  * The following code is the main loop of the file converter
1937  */
1938 static int transcode(AVFormatContext **output_files,
1939                      int nb_output_files,
1940                      InputFile *input_files,
1941                      int nb_input_files,
1942                      StreamMap *stream_maps, int nb_stream_maps)
1943 {
1944     int ret = 0, i, j, k, n, nb_ostreams = 0;
1945     AVFormatContext *is, *os;
1946     AVCodecContext *codec, *icodec;
1947     OutputStream *ost, **ost_table = NULL;
1948     InputStream *ist;
1949     char error[1024];
1950     int want_sdp = 1;
1951     uint8_t no_packet[MAX_FILES]={0};
1952     int no_packet_count=0;
1953
1954     if (rate_emu)
1955         for (i = 0; i < nb_input_streams; i++)
1956             input_streams[i].start = av_gettime();
1957
1958     /* output stream init */
1959     nb_ostreams = 0;
1960     for(i=0;i<nb_output_files;i++) {
1961         os = output_files[i];
1962         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1963             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1964             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1965             ret = AVERROR(EINVAL);
1966             goto fail;
1967         }
1968         nb_ostreams += os->nb_streams;
1969     }
1970     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1971         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1972         ret = AVERROR(EINVAL);
1973         goto fail;
1974     }
1975
1976     /* Sanity check the mapping args -- do the input files & streams exist? */
1977     for(i=0;i<nb_stream_maps;i++) {
1978         int fi = stream_maps[i].file_index;
1979         int si = stream_maps[i].stream_index;
1980
1981         if (fi < 0 || fi > nb_input_files - 1 ||
1982             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1983             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1984             ret = AVERROR(EINVAL);
1985             goto fail;
1986         }
1987         fi = stream_maps[i].sync_file_index;
1988         si = stream_maps[i].sync_stream_index;
1989         if (fi < 0 || fi > nb_input_files - 1 ||
1990             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1991             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1992             ret = AVERROR(EINVAL);
1993             goto fail;
1994         }
1995     }
1996
1997     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1998     if (!ost_table)
1999         goto fail;
2000     n = 0;
2001     for(k=0;k<nb_output_files;k++) {
2002         os = output_files[k];
2003         for(i=0;i<os->nb_streams;i++,n++) {
2004             int found;
2005             ost = ost_table[n] = output_streams_for_file[k][i];
2006             if (nb_stream_maps > 0) {
2007                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2008                     stream_maps[n].stream_index;
2009
2010                 /* Sanity check that the stream types match */
2011                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2012                     int i= ost->file_index;
2013                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2014                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2015                         stream_maps[n].file_index, stream_maps[n].stream_index,
2016                         ost->file_index, ost->index);
2017                     ffmpeg_exit(1);
2018                 }
2019
2020             } else {
2021                 int best_nb_frames=-1;
2022                 /* get corresponding input stream index : we select the first one with the right type */
2023                 found = 0;
2024                 for (j = 0; j < nb_input_streams; j++) {
2025                     int skip=0;
2026                     ist = &input_streams[j];
2027                     if(opt_programid){
2028                         int pi,si;
2029                         AVFormatContext *f = input_files[ist->file_index].ctx;
2030                         skip=1;
2031                         for(pi=0; pi<f->nb_programs; pi++){
2032                             AVProgram *p= f->programs[pi];
2033                             if(p->id == opt_programid)
2034                                 for(si=0; si<p->nb_stream_indexes; si++){
2035                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2036                                         skip=0;
2037                                 }
2038                         }
2039                     }
2040                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2041                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2042                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2043                             best_nb_frames= ist->st->codec_info_nb_frames;
2044                             ost->source_index = j;
2045                             found = 1;
2046                         }
2047                     }
2048                 }
2049
2050                 if (!found) {
2051                     if(! opt_programid) {
2052                         /* try again and reuse existing stream */
2053                         for (j = 0; j < nb_input_streams; j++) {
2054                             ist = &input_streams[j];
2055                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2056                                 && ist->st->discard != AVDISCARD_ALL) {
2057                                 ost->source_index = j;
2058                                 found = 1;
2059                             }
2060                         }
2061                     }
2062                     if (!found) {
2063                         int i= ost->file_index;
2064                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2065                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2066                                 ost->file_index, ost->index);
2067                         ffmpeg_exit(1);
2068                     }
2069                 }
2070             }
2071             ist = &input_streams[ost->source_index];
2072             ist->discard = 0;
2073             ost->sync_ist = (nb_stream_maps > 0) ?
2074                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2075                          stream_maps[n].sync_stream_index] : ist;
2076         }
2077     }
2078
2079     /* for each output stream, we compute the right encoding parameters */
2080     for(i=0;i<nb_ostreams;i++) {
2081         ost = ost_table[i];
2082         os = output_files[ost->file_index];
2083         ist = &input_streams[ost->source_index];
2084
2085         codec = ost->st->codec;
2086         icodec = ist->st->codec;
2087
2088         if (metadata_streams_autocopy)
2089             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2090                          AV_DICT_DONT_OVERWRITE);
2091
2092         ost->st->disposition = ist->st->disposition;
2093         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2094         codec->chroma_sample_location = icodec->chroma_sample_location;
2095
2096         if (ost->st->stream_copy) {
2097             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2098
2099             if (extra_size > INT_MAX)
2100                 goto fail;
2101
2102             /* if stream_copy is selected, no need to decode or encode */
2103             codec->codec_id = icodec->codec_id;
2104             codec->codec_type = icodec->codec_type;
2105
2106             if(!codec->codec_tag){
2107                 if(   !os->oformat->codec_tag
2108                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2109                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2110                     codec->codec_tag = icodec->codec_tag;
2111             }
2112
2113             codec->bit_rate = icodec->bit_rate;
2114             codec->rc_max_rate    = icodec->rc_max_rate;
2115             codec->rc_buffer_size = icodec->rc_buffer_size;
2116             codec->extradata= av_mallocz(extra_size);
2117             if (!codec->extradata)
2118                 goto fail;
2119             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2120             codec->extradata_size= icodec->extradata_size;
2121             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){
2122                 codec->time_base = icodec->time_base;
2123                 codec->time_base.num *= icodec->ticks_per_frame;
2124                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2125                           codec->time_base.num, codec->time_base.den, INT_MAX);
2126             }else
2127                 codec->time_base = ist->st->time_base;
2128             switch(codec->codec_type) {
2129             case AVMEDIA_TYPE_AUDIO:
2130                 if(audio_volume != 256) {
2131                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2132                     ffmpeg_exit(1);
2133                 }
2134                 codec->channel_layout = icodec->channel_layout;
2135                 codec->sample_rate = icodec->sample_rate;
2136                 codec->channels = icodec->channels;
2137                 codec->frame_size = icodec->frame_size;
2138                 codec->audio_service_type = icodec->audio_service_type;
2139                 codec->block_align= icodec->block_align;
2140                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2141                     codec->block_align= 0;
2142                 if(codec->codec_id == CODEC_ID_AC3)
2143                     codec->block_align= 0;
2144                 break;
2145             case AVMEDIA_TYPE_VIDEO:
2146                 codec->pix_fmt = icodec->pix_fmt;
2147                 codec->width = icodec->width;
2148                 codec->height = icodec->height;
2149                 codec->has_b_frames = icodec->has_b_frames;
2150                 if (!codec->sample_aspect_ratio.num) {
2151                     codec->sample_aspect_ratio =
2152                     ost->st->sample_aspect_ratio =
2153                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2154                         ist->st->codec->sample_aspect_ratio.num ?
2155                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2156                 }
2157                 break;
2158             case AVMEDIA_TYPE_SUBTITLE:
2159                 codec->width = icodec->width;
2160                 codec->height = icodec->height;
2161                 break;
2162             case AVMEDIA_TYPE_DATA:
2163                 break;
2164             default:
2165                 abort();
2166             }
2167         } else {
2168             if (!ost->enc)
2169                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2170             switch(codec->codec_type) {
2171             case AVMEDIA_TYPE_AUDIO:
2172                 ost->fifo= av_fifo_alloc(1024);
2173                 if(!ost->fifo)
2174                     goto fail;
2175                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2176                 if (!codec->sample_rate) {
2177                     codec->sample_rate = icodec->sample_rate;
2178                     if (icodec->lowres)
2179                         codec->sample_rate >>= icodec->lowres;
2180                 }
2181                 choose_sample_rate(ost->st, ost->enc);
2182                 codec->time_base = (AVRational){1, codec->sample_rate};
2183                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2184                     codec->sample_fmt = icodec->sample_fmt;
2185                 choose_sample_fmt(ost->st, ost->enc);
2186                 if (!codec->channels)
2187                     codec->channels = icodec->channels;
2188                 codec->channel_layout = icodec->channel_layout;
2189                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2190                     codec->channel_layout = 0;
2191                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2192                 icodec->request_channels = codec->channels;
2193                 ist->decoding_needed = 1;
2194                 ost->encoding_needed = 1;
2195                 ost->resample_sample_fmt  = icodec->sample_fmt;
2196                 ost->resample_sample_rate = icodec->sample_rate;
2197                 ost->resample_channels    = icodec->channels;
2198                 break;
2199             case AVMEDIA_TYPE_VIDEO:
2200                 if (codec->pix_fmt == PIX_FMT_NONE)
2201                     codec->pix_fmt = icodec->pix_fmt;
2202                 choose_pixel_fmt(ost->st, ost->enc);
2203
2204                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2205                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2206                     ffmpeg_exit(1);
2207                 }
2208                 ost->video_resample = codec->width   != icodec->width  ||
2209                                       codec->height  != icodec->height ||
2210                                       codec->pix_fmt != icodec->pix_fmt;
2211                 if (ost->video_resample) {
2212 #if !CONFIG_AVFILTER
2213                     avcodec_get_frame_defaults(&ost->pict_tmp);
2214                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2215                                          codec->width, codec->height)) {
2216                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2217                         ffmpeg_exit(1);
2218                     }
2219                     ost->img_resample_ctx = sws_getContext(
2220                         icodec->width,
2221                         icodec->height,
2222                             icodec->pix_fmt,
2223                             codec->width,
2224                             codec->height,
2225                             codec->pix_fmt,
2226                             ost->sws_flags, NULL, NULL, NULL);
2227                     if (ost->img_resample_ctx == NULL) {
2228                         fprintf(stderr, "Cannot get resampling context\n");
2229                         ffmpeg_exit(1);
2230                     }
2231 #endif
2232                     codec->bits_per_raw_sample= 0;
2233                 }
2234                 if (!codec->width || !codec->height) {
2235                     codec->width  = icodec->width;
2236                     codec->height = icodec->height;
2237                 }
2238                 ost->resample_height = icodec->height;
2239                 ost->resample_width  = icodec->width;
2240                 ost->resample_pix_fmt= icodec->pix_fmt;
2241                 ost->encoding_needed = 1;
2242                 ist->decoding_needed = 1;
2243
2244                 if (!ost->frame_rate.num)
2245                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2246                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2247                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2248                     ost->frame_rate = ost->enc->supported_framerates[idx];
2249                 }
2250                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2251
2252 #if CONFIG_AVFILTER
2253                 if (configure_video_filters(ist, ost)) {
2254                     fprintf(stderr, "Error opening filters!\n");
2255                     exit(1);
2256                 }
2257 #endif
2258                 break;
2259             case AVMEDIA_TYPE_SUBTITLE:
2260                 ost->encoding_needed = 1;
2261                 ist->decoding_needed = 1;
2262                 break;
2263             default:
2264                 abort();
2265                 break;
2266             }
2267             /* two pass mode */
2268             if (ost->encoding_needed &&
2269                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2270                 char logfilename[1024];
2271                 FILE *f;
2272
2273                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2274                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2275                          i);
2276                 if (codec->flags & CODEC_FLAG_PASS1) {
2277                     f = fopen(logfilename, "wb");
2278                     if (!f) {
2279                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2280                         ffmpeg_exit(1);
2281                     }
2282                     ost->logfile = f;
2283                 } else {
2284                     char  *logbuffer;
2285                     size_t logbuffer_size;
2286                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2287                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2288                         ffmpeg_exit(1);
2289                     }
2290                     codec->stats_in = logbuffer;
2291                 }
2292             }
2293         }
2294         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2295             int size= codec->width * codec->height;
2296             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2297         }
2298     }
2299
2300     if (!bit_buffer)
2301         bit_buffer = av_malloc(bit_buffer_size);
2302     if (!bit_buffer) {
2303         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2304                 bit_buffer_size);
2305         ret = AVERROR(ENOMEM);
2306         goto fail;
2307     }
2308
2309     /* open each encoder */
2310     for(i=0;i<nb_ostreams;i++) {
2311         ost = ost_table[i];
2312         if (ost->encoding_needed) {
2313             AVCodec *codec = ost->enc;
2314             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2315             if (!codec) {
2316                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2317                          ost->st->codec->codec_id, ost->file_index, ost->index);
2318                 ret = AVERROR(EINVAL);
2319                 goto dump_format;
2320             }
2321             if (dec->subtitle_header) {
2322                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2323                 if (!ost->st->codec->subtitle_header) {
2324                     ret = AVERROR(ENOMEM);
2325                     goto dump_format;
2326                 }
2327                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2328                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2329             }
2330             if (avcodec_open(ost->st->codec, codec) < 0) {
2331                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2332                         ost->file_index, ost->index);
2333                 ret = AVERROR(EINVAL);
2334                 goto dump_format;
2335             }
2336             extra_size += ost->st->codec->extradata_size;
2337         }
2338     }
2339
2340     /* open each decoder */
2341     for (i = 0; i < nb_input_streams; i++) {
2342         ist = &input_streams[i];
2343         if (ist->decoding_needed) {
2344             AVCodec *codec = ist->dec;
2345             if (!codec)
2346                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2347             if (!codec) {
2348                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2349                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2350                 ret = AVERROR(EINVAL);
2351                 goto dump_format;
2352             }
2353
2354             /* update requested sample format for the decoder based on the
2355                corresponding encoder sample format */
2356             for (j = 0; j < nb_ostreams; j++) {
2357                 ost = ost_table[j];
2358                 if (ost->source_index == i) {
2359                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2360                     break;
2361                 }
2362             }
2363
2364             if (avcodec_open(ist->st->codec, codec) < 0) {
2365                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2366                         ist->file_index, ist->st->index);
2367                 ret = AVERROR(EINVAL);
2368                 goto dump_format;
2369             }
2370             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2371             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2372         }
2373     }
2374
2375     /* init pts */
2376     for (i = 0; i < nb_input_streams; i++) {
2377         AVStream *st;
2378         ist = &input_streams[i];
2379         st= ist->st;
2380         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2381         ist->next_pts = AV_NOPTS_VALUE;
2382         init_pts_correction(&ist->pts_ctx);
2383         ist->is_start = 1;
2384     }
2385
2386     /* set meta data information from input file if required */
2387     for (i=0;i<nb_meta_data_maps;i++) {
2388         AVFormatContext *files[2];
2389         AVDictionary    **meta[2];
2390         int j;
2391
2392 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2393         if ((index) < 0 || (index) >= (nb_elems)) {\
2394             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2395                      (desc), (index));\
2396             ret = AVERROR(EINVAL);\
2397             goto dump_format;\
2398         }
2399
2400         int out_file_index = meta_data_maps[i][0].file;
2401         int in_file_index = meta_data_maps[i][1].file;
2402         if (in_file_index < 0 || out_file_index < 0)
2403             continue;
2404         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2405         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2406
2407         files[0] = output_files[out_file_index];
2408         files[1] = input_files[in_file_index].ctx;
2409
2410         for (j = 0; j < 2; j++) {
2411             MetadataMap *map = &meta_data_maps[i][j];
2412
2413             switch (map->type) {
2414             case 'g':
2415                 meta[j] = &files[j]->metadata;
2416                 break;
2417             case 's':
2418                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2419                 meta[j] = &files[j]->streams[map->index]->metadata;
2420                 break;
2421             case 'c':
2422                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2423                 meta[j] = &files[j]->chapters[map->index]->metadata;
2424                 break;
2425             case 'p':
2426                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2427                 meta[j] = &files[j]->programs[map->index]->metadata;
2428                 break;
2429             }
2430         }
2431
2432         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2433     }
2434
2435     /* copy global metadata by default */
2436     if (metadata_global_autocopy) {
2437
2438         for (i = 0; i < nb_output_files; i++)
2439             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2440                          AV_DICT_DONT_OVERWRITE);
2441     }
2442
2443     /* copy chapters according to chapter maps */
2444     for (i = 0; i < nb_chapter_maps; i++) {
2445         int infile  = chapter_maps[i].in_file;
2446         int outfile = chapter_maps[i].out_file;
2447
2448         if (infile < 0 || outfile < 0)
2449             continue;
2450         if (infile >= nb_input_files) {
2451             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2452             ret = AVERROR(EINVAL);
2453             goto dump_format;
2454         }
2455         if (outfile >= nb_output_files) {
2456             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2457             ret = AVERROR(EINVAL);
2458             goto dump_format;
2459         }
2460         copy_chapters(infile, outfile);
2461     }
2462
2463     /* copy chapters from the first input file that has them*/
2464     if (!nb_chapter_maps)
2465         for (i = 0; i < nb_input_files; i++) {
2466             if (!input_files[i].ctx->nb_chapters)
2467                 continue;
2468
2469             for (j = 0; j < nb_output_files; j++)
2470                 if ((ret = copy_chapters(i, j)) < 0)
2471                     goto dump_format;
2472             break;
2473         }
2474
2475     /* open files and write file headers */
2476     for(i=0;i<nb_output_files;i++) {
2477         os = output_files[i];
2478         if (avformat_write_header(os, &output_opts[i]) < 0) {
2479             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2480             ret = AVERROR(EINVAL);
2481             goto dump_format;
2482         }
2483         assert_avoptions(output_opts[i]);
2484         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2485             want_sdp = 0;
2486         }
2487     }
2488
2489  dump_format:
2490     /* dump the file output parameters - cannot be done before in case
2491        of stream copy */
2492     for(i=0;i<nb_output_files;i++) {
2493         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2494     }
2495
2496     /* dump the stream mapping */
2497     if (verbose >= 0) {
2498         fprintf(stderr, "Stream mapping:\n");
2499         for(i=0;i<nb_ostreams;i++) {
2500             ost = ost_table[i];
2501             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2502                     input_streams[ost->source_index].file_index,
2503                     input_streams[ost->source_index].st->index,
2504                     ost->file_index,
2505                     ost->index);
2506             if (ost->sync_ist != &input_streams[ost->source_index])
2507                 fprintf(stderr, " [sync #%d.%d]",
2508                         ost->sync_ist->file_index,
2509                         ost->sync_ist->st->index);
2510             fprintf(stderr, "\n");
2511         }
2512     }
2513
2514     if (ret) {
2515         fprintf(stderr, "%s\n", error);
2516         goto fail;
2517     }
2518
2519     if (want_sdp) {
2520         print_sdp(output_files, nb_output_files);
2521     }
2522
2523     if (verbose >= 0)
2524         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2525     term_init();
2526
2527     timer_start = av_gettime();
2528
2529     for(; received_sigterm == 0;) {
2530         int file_index, ist_index;
2531         AVPacket pkt;
2532         double ipts_min;
2533         double opts_min;
2534
2535     redo:
2536         ipts_min= 1e100;
2537         opts_min= 1e100;
2538
2539         /* select the stream that we must read now by looking at the
2540            smallest output pts */
2541         file_index = -1;
2542         for(i=0;i<nb_ostreams;i++) {
2543             double ipts, opts;
2544             ost = ost_table[i];
2545             os = output_files[ost->file_index];
2546             ist = &input_streams[ost->source_index];
2547             if(ist->is_past_recording_time || no_packet[ist->file_index])
2548                 continue;
2549                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2550             ipts = (double)ist->pts;
2551             if (!input_files[ist->file_index].eof_reached){
2552                 if(ipts < ipts_min) {
2553                     ipts_min = ipts;
2554                     if(input_sync ) file_index = ist->file_index;
2555                 }
2556                 if(opts < opts_min) {
2557                     opts_min = opts;
2558                     if(!input_sync) file_index = ist->file_index;
2559                 }
2560             }
2561             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2562                 file_index= -1;
2563                 break;
2564             }
2565         }
2566         /* if none, if is finished */
2567         if (file_index < 0) {
2568             if(no_packet_count){
2569                 no_packet_count=0;
2570                 memset(no_packet, 0, sizeof(no_packet));
2571                 usleep(10000);
2572                 continue;
2573             }
2574             break;
2575         }
2576
2577         /* finish if limit size exhausted */
2578         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2579             break;
2580
2581         /* read a frame from it and output it in the fifo */
2582         is = input_files[file_index].ctx;
2583         ret= av_read_frame(is, &pkt);
2584         if(ret == AVERROR(EAGAIN)){
2585             no_packet[file_index]=1;
2586             no_packet_count++;
2587             continue;
2588         }
2589         if (ret < 0) {
2590             input_files[file_index].eof_reached = 1;
2591             if (opt_shortest)
2592                 break;
2593             else
2594                 continue;
2595         }
2596
2597         no_packet_count=0;
2598         memset(no_packet, 0, sizeof(no_packet));
2599
2600         if (do_pkt_dump) {
2601             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2602                              is->streams[pkt.stream_index]);
2603         }
2604         /* the following test is needed in case new streams appear
2605            dynamically in stream : we ignore them */
2606         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2607             goto discard_packet;
2608         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2609         ist = &input_streams[ist_index];
2610         if (ist->discard)
2611             goto discard_packet;
2612
2613         if (pkt.dts != AV_NOPTS_VALUE)
2614             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2615         if (pkt.pts != AV_NOPTS_VALUE)
2616             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2617
2618         if (ist->ts_scale) {
2619             if(pkt.pts != AV_NOPTS_VALUE)
2620                 pkt.pts *= ist->ts_scale;
2621             if(pkt.dts != AV_NOPTS_VALUE)
2622                 pkt.dts *= ist->ts_scale;
2623         }
2624
2625 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2626         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2627             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2628             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2629             int64_t delta= pkt_dts - ist->next_pts;
2630             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2631                 input_files[ist->file_index].ts_offset -= delta;
2632                 if (verbose > 2)
2633                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2634                             delta, input_files[ist->file_index].ts_offset);
2635                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2636                 if(pkt.pts != AV_NOPTS_VALUE)
2637                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2638             }
2639         }
2640
2641         /* finish if recording time exhausted */
2642         if (recording_time != INT64_MAX &&
2643             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2644             ist->is_past_recording_time = 1;
2645             goto discard_packet;
2646         }
2647
2648         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2649         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2650
2651             if (verbose >= 0)
2652                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2653                         ist->file_index, ist->st->index);
2654             if (exit_on_error)
2655                 ffmpeg_exit(1);
2656             av_free_packet(&pkt);
2657             goto redo;
2658         }
2659
2660     discard_packet:
2661         av_free_packet(&pkt);
2662
2663         /* dump report by using the output first video and audio streams */
2664         print_report(output_files, ost_table, nb_ostreams, 0);
2665     }
2666
2667     /* at the end of stream, we must flush the decoder buffers */
2668     for (i = 0; i < nb_input_streams; i++) {
2669         ist = &input_streams[i];
2670         if (ist->decoding_needed) {
2671             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2672         }
2673     }
2674
2675     term_exit();
2676
2677     /* write the trailer if needed and close file */
2678     for(i=0;i<nb_output_files;i++) {
2679         os = output_files[i];
2680         av_write_trailer(os);
2681     }
2682
2683     /* dump report by using the first video and audio streams */
2684     print_report(output_files, ost_table, nb_ostreams, 1);
2685
2686     /* close each encoder */
2687     for(i=0;i<nb_ostreams;i++) {
2688         ost = ost_table[i];
2689         if (ost->encoding_needed) {
2690             av_freep(&ost->st->codec->stats_in);
2691             avcodec_close(ost->st->codec);
2692         }
2693 #if CONFIG_AVFILTER
2694         avfilter_graph_free(&ost->graph);
2695 #endif
2696     }
2697
2698     /* close each decoder */
2699     for (i = 0; i < nb_input_streams; i++) {
2700         ist = &input_streams[i];
2701         if (ist->decoding_needed) {
2702             avcodec_close(ist->st->codec);
2703         }
2704     }
2705
2706     /* finished ! */
2707     ret = 0;
2708
2709  fail:
2710     av_freep(&bit_buffer);
2711
2712     if (ost_table) {
2713         for(i=0;i<nb_ostreams;i++) {
2714             ost = ost_table[i];
2715             if (ost) {
2716                 if (ost->st->stream_copy)
2717                     av_freep(&ost->st->codec->extradata);
2718                 if (ost->logfile) {
2719                     fclose(ost->logfile);
2720                     ost->logfile = NULL;
2721                 }
2722                 av_fifo_free(ost->fifo); /* works even if fifo is not
2723                                              initialized but set to zero */
2724                 av_freep(&ost->st->codec->subtitle_header);
2725                 av_free(ost->pict_tmp.data[0]);
2726                 av_free(ost->forced_kf_pts);
2727                 if (ost->video_resample)
2728                     sws_freeContext(ost->img_resample_ctx);
2729                 if (ost->resample)
2730                     audio_resample_close(ost->resample);
2731                 if (ost->reformat_ctx)
2732                     av_audio_convert_free(ost->reformat_ctx);
2733                 av_free(ost);
2734             }
2735         }
2736         av_free(ost_table);
2737     }
2738     return ret;
2739 }
2740
2741 static int opt_format(const char *opt, const char *arg)
2742 {
2743     last_asked_format = arg;
2744     return 0;
2745 }
2746
2747 static int opt_video_rc_override_string(const char *opt, const char *arg)
2748 {
2749     video_rc_override_string = arg;
2750     return 0;
2751 }
2752
2753 static int opt_me_threshold(const char *opt, const char *arg)
2754 {
2755     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2756     return 0;
2757 }
2758
2759 static int opt_verbose(const char *opt, const char *arg)
2760 {
2761     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2762     return 0;
2763 }
2764
2765 static int opt_frame_rate(const char *opt, const char *arg)
2766 {
2767     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2768         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2769         ffmpeg_exit(1);
2770     }
2771     return 0;
2772 }
2773
2774 static int opt_bitrate(const char *opt, const char *arg)
2775 {
2776     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2777
2778     opt_default(opt, arg);
2779
2780     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2781         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2782
2783     return 0;
2784 }
2785
2786 static int opt_frame_crop(const char *opt, const char *arg)
2787 {
2788     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2789     return AVERROR(EINVAL);
2790 }
2791
2792 static int opt_frame_size(const char *opt, const char *arg)
2793 {
2794     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2795         fprintf(stderr, "Incorrect frame size\n");
2796         return AVERROR(EINVAL);
2797     }
2798     return 0;
2799 }
2800
2801 static int opt_pad(const char *opt, const char *arg) {
2802     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2803     return -1;
2804 }
2805
2806 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2807 {
2808     if (strcmp(arg, "list")) {
2809         frame_pix_fmt = av_get_pix_fmt(arg);
2810         if (frame_pix_fmt == PIX_FMT_NONE) {
2811             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2812             return AVERROR(EINVAL);
2813         }
2814     } else {
2815         show_pix_fmts();
2816         ffmpeg_exit(0);
2817     }
2818     return 0;
2819 }
2820
2821 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2822 {
2823     int x = 0, y = 0;
2824     double ar = 0;
2825     const char *p;
2826     char *end;
2827
2828     p = strchr(arg, ':');
2829     if (p) {
2830         x = strtol(arg, &end, 10);
2831         if (end == p)
2832             y = strtol(end+1, &end, 10);
2833         if (x > 0 && y > 0)
2834             ar = (double)x / (double)y;
2835     } else
2836         ar = strtod(arg, NULL);
2837
2838     if (!ar) {
2839         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2840         return AVERROR(EINVAL);
2841     }
2842     frame_aspect_ratio = ar;
2843     return 0;
2844 }
2845
2846 static int opt_metadata(const char *opt, const char *arg)
2847 {
2848     char *mid= strchr(arg, '=');
2849
2850     if(!mid){
2851         fprintf(stderr, "Missing =\n");
2852         ffmpeg_exit(1);
2853     }
2854     *mid++= 0;
2855
2856     av_dict_set(&metadata, arg, mid, 0);
2857
2858     return 0;
2859 }
2860
2861 static int opt_qscale(const char *opt, const char *arg)
2862 {
2863     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2864     if (video_qscale == 0) {
2865         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2866         return AVERROR(EINVAL);
2867     }
2868     return 0;
2869 }
2870
2871 static int opt_top_field_first(const char *opt, const char *arg)
2872 {
2873     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2874     return 0;
2875 }
2876
2877 static int opt_thread_count(const char *opt, const char *arg)
2878 {
2879     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2880 #if !HAVE_THREADS
2881     if (verbose >= 0)
2882         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2883 #endif
2884     return 0;
2885 }
2886
2887 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2888 {
2889     if (strcmp(arg, "list")) {
2890         audio_sample_fmt = av_get_sample_fmt(arg);
2891         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2892             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2893             return AVERROR(EINVAL);
2894         }
2895     } else {
2896         int i;
2897         char fmt_str[128];
2898         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2899             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2900         ffmpeg_exit(0);
2901     }
2902     return 0;
2903 }
2904
2905 static int opt_audio_rate(const char *opt, const char *arg)
2906 {
2907     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2908     return 0;
2909 }
2910
2911 static int opt_audio_channels(const char *opt, const char *arg)
2912 {
2913     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2914     return 0;
2915 }
2916
2917 static int opt_video_channel(const char *opt, const char *arg)
2918 {
2919     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2920     opt_default("channel", arg);
2921     return 0;
2922 }
2923
2924 static int opt_video_standard(const char *opt, const char *arg)
2925 {
2926     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2927     opt_default("standard", arg);
2928     return 0;
2929 }
2930
2931 static int opt_codec(int *pstream_copy, char **pcodec_name,
2932                       int codec_type, const char *arg)
2933 {
2934     av_freep(pcodec_name);
2935     if (!strcmp(arg, "copy")) {
2936         *pstream_copy = 1;
2937     } else {
2938         *pcodec_name = av_strdup(arg);
2939     }
2940     return 0;
2941 }
2942
2943 static int opt_audio_codec(const char *opt, const char *arg)
2944 {
2945     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2946 }
2947
2948 static int opt_video_codec(const char *opt, const char *arg)
2949 {
2950     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2951 }
2952
2953 static int opt_subtitle_codec(const char *opt, const char *arg)
2954 {
2955     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2956 }
2957
2958 static int opt_data_codec(const char *opt, const char *arg)
2959 {
2960     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2961 }
2962
2963 static int opt_codec_tag(const char *opt, const char *arg)
2964 {
2965     char *tail;
2966     uint32_t *codec_tag;
2967
2968     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2969                 !strcmp(opt, "vtag") ? &video_codec_tag :
2970                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2971     if (!codec_tag)
2972         return -1;
2973
2974     *codec_tag = strtol(arg, &tail, 0);
2975     if (!tail || *tail)
2976         *codec_tag = AV_RL32(arg);
2977
2978     return 0;
2979 }
2980
2981 static int opt_map(const char *opt, const char *arg)
2982 {
2983     StreamMap *m;
2984     char *p;
2985
2986     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2987     m = &stream_maps[nb_stream_maps-1];
2988
2989     m->file_index = strtol(arg, &p, 0);
2990     if (*p)
2991         p++;
2992
2993     m->stream_index = strtol(p, &p, 0);
2994     if (*p) {
2995         p++;
2996         m->sync_file_index = strtol(p, &p, 0);
2997         if (*p)
2998             p++;
2999         m->sync_stream_index = strtol(p, &p, 0);
3000     } else {
3001         m->sync_file_index = m->file_index;
3002         m->sync_stream_index = m->stream_index;
3003     }
3004     return 0;
3005 }
3006
3007 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3008 {
3009     *endptr = arg;
3010     if (*arg == ',') {
3011         *type = *(++arg);
3012         switch (*arg) {
3013         case 'g':
3014             break;
3015         case 's':
3016         case 'c':
3017         case 'p':
3018             *index = strtol(++arg, endptr, 0);
3019             break;
3020         default:
3021             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3022             ffmpeg_exit(1);
3023         }
3024     } else
3025         *type = 'g';
3026 }
3027
3028 static int opt_map_metadata(const char *opt, const char *arg)
3029 {
3030     MetadataMap *m, *m1;
3031     char *p;
3032
3033     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3034                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3035
3036     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3037     m->file = strtol(arg, &p, 0);
3038     parse_meta_type(p, &m->type, &m->index, &p);
3039     if (*p)
3040         p++;
3041
3042     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3043     m1->file = strtol(p, &p, 0);
3044     parse_meta_type(p, &m1->type, &m1->index, &p);
3045
3046     if (m->type == 'g' || m1->type == 'g')
3047         metadata_global_autocopy = 0;
3048     if (m->type == 's' || m1->type == 's')
3049         metadata_streams_autocopy = 0;
3050     if (m->type == 'c' || m1->type == 'c')
3051         metadata_chapters_autocopy = 0;
3052
3053     return 0;
3054 }
3055
3056 static int opt_map_meta_data(const char *opt, const char *arg)
3057 {
3058     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3059                     "Use -map_metadata instead.\n");
3060     return opt_map_metadata(opt, arg);
3061 }
3062
3063 static int opt_map_chapters(const char *opt, const char *arg)
3064 {
3065     ChapterMap *c;
3066     char *p;
3067
3068     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3069                               nb_chapter_maps + 1);
3070     c = &chapter_maps[nb_chapter_maps - 1];
3071     c->out_file = strtol(arg, &p, 0);
3072     if (*p)
3073         p++;
3074
3075     c->in_file = strtol(p, &p, 0);
3076     return 0;
3077 }
3078
3079 static int opt_input_ts_scale(const char *opt, const char *arg)
3080 {
3081     unsigned int stream;
3082     double scale;
3083     char *p;
3084
3085     stream = strtol(arg, &p, 0);
3086     if (*p)
3087         p++;
3088     scale= strtod(p, &p);
3089
3090     if(stream >= MAX_STREAMS)
3091         ffmpeg_exit(1);
3092
3093     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3094     ts_scale[stream] = scale;
3095     return 0;
3096 }
3097
3098 static int opt_recording_time(const char *opt, const char *arg)
3099 {
3100     recording_time = parse_time_or_die(opt, arg, 1);
3101     return 0;
3102 }
3103
3104 static int opt_start_time(const char *opt, const char *arg)
3105 {
3106     start_time = parse_time_or_die(opt, arg, 1);
3107     return 0;
3108 }
3109
3110 static int opt_recording_timestamp(const char *opt, const char *arg)
3111 {
3112     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3113     return 0;
3114 }
3115
3116 static int opt_input_ts_offset(const char *opt, const char *arg)
3117 {
3118     input_ts_offset = parse_time_or_die(opt, arg, 1);
3119     return 0;
3120 }
3121
3122 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3123 {
3124     const char *codec_string = encoder ? "encoder" : "decoder";
3125     AVCodec *codec;
3126
3127     if(!name)
3128         return CODEC_ID_NONE;
3129     codec = encoder ?
3130         avcodec_find_encoder_by_name(name) :
3131         avcodec_find_decoder_by_name(name);
3132     if(!codec) {
3133         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3134         ffmpeg_exit(1);
3135     }
3136     if(codec->type != type) {
3137         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3138         ffmpeg_exit(1);
3139     }
3140     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3141        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3142         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3143                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3144                 codec_string, codec->name);
3145         codec = encoder ?
3146             avcodec_find_encoder(codec->id) :
3147             avcodec_find_decoder(codec->id);
3148         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3149             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3150                     codec_string, codec->name);
3151         ffmpeg_exit(1);
3152     }
3153     return codec->id;
3154 }
3155
3156 static int opt_input_file(const char *opt, const char *filename)
3157 {
3158     AVFormatContext *ic;
3159     AVInputFormat *file_iformat = NULL;
3160     int err, i, ret, rfps, rfps_base;
3161     int64_t timestamp;
3162     uint8_t buf[128];
3163
3164     if (last_asked_format) {
3165         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3166             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3167             ffmpeg_exit(1);
3168         }
3169         last_asked_format = NULL;
3170     }
3171
3172     if (!strcmp(filename, "-"))
3173         filename = "pipe:";
3174
3175     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3176                     !strcmp(filename, "/dev/stdin");
3177
3178     /* get default parameters from command line */
3179     ic = avformat_alloc_context();
3180     if (!ic) {
3181         print_error(filename, AVERROR(ENOMEM));
3182         ffmpeg_exit(1);
3183     }
3184     if (audio_sample_rate) {
3185         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3186         av_dict_set(&format_opts, "sample_rate", buf, 0);
3187     }
3188     if (audio_channels) {
3189         snprintf(buf, sizeof(buf), "%d", audio_channels);
3190         av_dict_set(&format_opts, "channels", buf, 0);
3191     }
3192     if (frame_rate.num) {
3193         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3194         av_dict_set(&format_opts, "framerate", buf, 0);
3195     }
3196     if (frame_width && frame_height) {
3197         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3198         av_dict_set(&format_opts, "video_size", buf, 0);
3199     }
3200     if (frame_pix_fmt != PIX_FMT_NONE)
3201         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3202
3203     ic->video_codec_id   =
3204         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3205                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3206     ic->audio_codec_id   =
3207         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3208                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3209     ic->subtitle_codec_id=
3210         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3211                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3212     ic->flags |= AVFMT_FLAG_NONBLOCK;
3213
3214     /* open the input file with generic libav function */
3215     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3216     if (err < 0) {
3217         print_error(filename, err);
3218         ffmpeg_exit(1);
3219     }
3220     assert_avoptions(format_opts);
3221
3222     if(opt_programid) {
3223         int i, j;
3224         int found=0;
3225         for(i=0; i<ic->nb_streams; i++){
3226             ic->streams[i]->discard= AVDISCARD_ALL;
3227         }
3228         for(i=0; i<ic->nb_programs; i++){
3229             AVProgram *p= ic->programs[i];
3230             if(p->id != opt_programid){
3231                 p->discard = AVDISCARD_ALL;
3232             }else{
3233                 found=1;
3234                 for(j=0; j<p->nb_stream_indexes; j++){
3235                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3236                 }
3237             }
3238         }
3239         if(!found){
3240             fprintf(stderr, "Specified program id not found\n");
3241             ffmpeg_exit(1);
3242         }
3243         opt_programid=0;
3244     }
3245
3246     if (loop_input) {
3247         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3248         ic->loop_input = loop_input;
3249     }
3250
3251     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3252     for (i = 0; i < ic->nb_streams; i++) {
3253         AVCodecContext *dec = ic->streams[i]->codec;
3254         switch (dec->codec_type) {
3255         case AVMEDIA_TYPE_AUDIO:
3256             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3257                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3258                              NULL);
3259             break;
3260         case AVMEDIA_TYPE_VIDEO:
3261             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3262                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3263                              NULL);
3264             break;
3265         }
3266     }
3267
3268     /* If not enough info to get the stream parameters, we decode the
3269        first frames to get it. (used in mpeg case for example) */
3270     ret = av_find_stream_info(ic);
3271     if (ret < 0 && verbose >= 0) {
3272         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3273         av_close_input_file(ic);
3274         ffmpeg_exit(1);
3275     }
3276
3277     timestamp = start_time;
3278     /* add the stream start time */
3279     if (ic->start_time != AV_NOPTS_VALUE)
3280         timestamp += ic->start_time;
3281
3282     /* if seeking requested, we execute it */
3283     if (start_time != 0) {
3284         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3285         if (ret < 0) {
3286             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3287                     filename, (double)timestamp / AV_TIME_BASE);
3288         }
3289         /* reset seek info */
3290         start_time = 0;
3291     }
3292
3293     /* update the current parameters so that they match the one of the input stream */
3294     for(i=0;i<ic->nb_streams;i++) {
3295         AVStream *st = ic->streams[i];
3296         AVCodecContext *dec = st->codec;
3297         InputStream *ist;
3298
3299         dec->thread_count = thread_count;
3300
3301         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3302         ist = &input_streams[nb_input_streams - 1];
3303         ist->st = st;
3304         ist->file_index = nb_input_files;
3305         ist->discard = 1;
3306
3307         if (i < nb_ts_scale)
3308             ist->ts_scale = ts_scale[i];
3309
3310         switch (dec->codec_type) {
3311         case AVMEDIA_TYPE_AUDIO:
3312             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3313             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3314             if(audio_disable)
3315                 st->discard= AVDISCARD_ALL;
3316             break;
3317         case AVMEDIA_TYPE_VIDEO:
3318             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3319             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3320             rfps      = ic->streams[i]->r_frame_rate.num;
3321             rfps_base = ic->streams[i]->r_frame_rate.den;
3322             if (dec->lowres) {
3323                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3324                 dec->height >>= dec->lowres;
3325                 dec->width  >>= dec->lowres;
3326             }
3327             if(me_threshold)
3328                 dec->debug |= FF_DEBUG_MV;
3329
3330             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3331
3332                 if (verbose >= 0)
3333                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3334                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3335
3336                     (float)rfps / rfps_base, rfps, rfps_base);
3337             }
3338
3339             if(video_disable)
3340                 st->discard= AVDISCARD_ALL;
3341             else if(video_discard)
3342                 st->discard= video_discard;
3343             break;
3344         case AVMEDIA_TYPE_DATA:
3345             break;
3346         case AVMEDIA_TYPE_SUBTITLE:
3347             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3348             if(subtitle_disable)
3349                 st->discard = AVDISCARD_ALL;
3350             break;
3351         case AVMEDIA_TYPE_ATTACHMENT:
3352         case AVMEDIA_TYPE_UNKNOWN:
3353             break;
3354         default:
3355             abort();
3356         }
3357     }
3358
3359     /* dump the file content */
3360     if (verbose >= 0)
3361         av_dump_format(ic, nb_input_files, filename, 0);
3362
3363     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3364     input_files[nb_input_files - 1].ctx        = ic;
3365     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3366     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3367
3368     frame_rate    = (AVRational){0, 0};
3369     frame_pix_fmt = PIX_FMT_NONE;
3370     frame_height = 0;
3371     frame_width  = 0;
3372     audio_sample_rate = 0;
3373     audio_channels    = 0;
3374     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3375     av_freep(&ts_scale);
3376     nb_ts_scale = 0;
3377
3378     av_freep(&video_codec_name);
3379     av_freep(&audio_codec_name);
3380     av_freep(&subtitle_codec_name);
3381     uninit_opts();
3382     init_opts();
3383     return 0;
3384 }
3385
3386 static void check_inputs(int *has_video_ptr,
3387                          int *has_audio_ptr,
3388                          int *has_subtitle_ptr,
3389                          int *has_data_ptr)
3390 {
3391     int has_video, has_audio, has_subtitle, has_data, i, j;
3392     AVFormatContext *ic;
3393
3394     has_video = 0;
3395     has_audio = 0;
3396     has_subtitle = 0;
3397     has_data = 0;
3398
3399     for(j=0;j<nb_input_files;j++) {
3400         ic = input_files[j].ctx;
3401         for(i=0;i<ic->nb_streams;i++) {
3402             AVCodecContext *enc = ic->streams[i]->codec;
3403             switch(enc->codec_type) {
3404             case AVMEDIA_TYPE_AUDIO:
3405                 has_audio = 1;
3406                 break;
3407             case AVMEDIA_TYPE_VIDEO:
3408                 has_video = 1;
3409                 break;
3410             case AVMEDIA_TYPE_SUBTITLE:
3411                 has_subtitle = 1;
3412                 break;
3413             case AVMEDIA_TYPE_DATA:
3414             case AVMEDIA_TYPE_ATTACHMENT:
3415             case AVMEDIA_TYPE_UNKNOWN:
3416                 has_data = 1;
3417                 break;
3418             default:
3419                 abort();
3420             }
3421         }
3422     }
3423     *has_video_ptr = has_video;
3424     *has_audio_ptr = has_audio;
3425     *has_subtitle_ptr = has_subtitle;
3426     *has_data_ptr = has_data;
3427 }
3428
3429 static void new_video_stream(AVFormatContext *oc, int file_idx)
3430 {
3431     AVStream *st;
3432     OutputStream *ost;
3433     AVCodecContext *video_enc;
3434     enum CodecID codec_id = CODEC_ID_NONE;
3435     AVCodec *codec= NULL;
3436
3437     if(!video_stream_copy){
3438         if (video_codec_name) {
3439             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3440                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3441             codec = avcodec_find_encoder_by_name(video_codec_name);
3442         } else {
3443             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3444             codec = avcodec_find_encoder(codec_id);
3445         }
3446     }
3447
3448     ost = new_output_stream(oc, file_idx, codec);
3449     st  = ost->st;
3450     if (!video_stream_copy) {
3451         ost->frame_aspect_ratio = frame_aspect_ratio;
3452         frame_aspect_ratio = 0;
3453 #if CONFIG_AVFILTER
3454         ost->avfilter= vfilters;
3455         vfilters = NULL;
3456 #endif
3457     }
3458
3459     ost->bitstream_filters = video_bitstream_filters;
3460     video_bitstream_filters= NULL;
3461
3462     st->codec->thread_count= thread_count;
3463
3464     video_enc = st->codec;
3465
3466     if(video_codec_tag)
3467         video_enc->codec_tag= video_codec_tag;
3468
3469     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3470         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3471         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3472     }
3473
3474     if (video_stream_copy) {
3475         st->stream_copy = 1;
3476         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3477         video_enc->sample_aspect_ratio =
3478         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3479     } else {
3480         const char *p;
3481         int i;
3482
3483         if (frame_rate.num)
3484             ost->frame_rate = frame_rate;
3485         video_enc->codec_id = codec_id;
3486         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3487
3488         video_enc->width = frame_width;
3489         video_enc->height = frame_height;
3490         video_enc->pix_fmt = frame_pix_fmt;
3491         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3492
3493         if (intra_only)
3494             video_enc->gop_size = 0;
3495         if (video_qscale || same_quality) {
3496             video_enc->flags |= CODEC_FLAG_QSCALE;
3497             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3498         }
3499
3500         if(intra_matrix)
3501             video_enc->intra_matrix = intra_matrix;
3502         if(inter_matrix)
3503             video_enc->inter_matrix = inter_matrix;
3504
3505         p= video_rc_override_string;
3506         for(i=0; p; i++){
3507             int start, end, q;
3508             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3509             if(e!=3){
3510                 fprintf(stderr, "error parsing rc_override\n");
3511                 ffmpeg_exit(1);
3512             }
3513             video_enc->rc_override=
3514                 av_realloc(video_enc->rc_override,
3515                            sizeof(RcOverride)*(i+1));
3516             video_enc->rc_override[i].start_frame= start;
3517             video_enc->rc_override[i].end_frame  = end;
3518             if(q>0){
3519                 video_enc->rc_override[i].qscale= q;
3520                 video_enc->rc_override[i].quality_factor= 1.0;
3521             }
3522             else{
3523                 video_enc->rc_override[i].qscale= 0;
3524                 video_enc->rc_override[i].quality_factor= -q/100.0;
3525             }
3526             p= strchr(p, '/');
3527             if(p) p++;
3528         }
3529         video_enc->rc_override_count=i;
3530         if (!video_enc->rc_initial_buffer_occupancy)
3531             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3532         video_enc->me_threshold= me_threshold;
3533         video_enc->intra_dc_precision= intra_dc_precision - 8;
3534
3535         if (do_psnr)
3536             video_enc->flags|= CODEC_FLAG_PSNR;
3537
3538         /* two pass mode */
3539         if (do_pass) {
3540             if (do_pass == 1) {
3541                 video_enc->flags |= CODEC_FLAG_PASS1;
3542             } else {
3543                 video_enc->flags |= CODEC_FLAG_PASS2;
3544             }
3545         }
3546
3547         if (forced_key_frames)
3548             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3549     }
3550     if (video_language) {
3551         av_dict_set(&st->metadata, "language", video_language, 0);
3552         av_freep(&video_language);
3553     }
3554
3555     /* reset some key parameters */
3556     video_disable = 0;
3557     av_freep(&video_codec_name);
3558     av_freep(&forced_key_frames);
3559     video_stream_copy = 0;
3560     frame_pix_fmt = PIX_FMT_NONE;
3561 }
3562
3563 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3564 {
3565     AVStream *st;
3566     OutputStream *ost;
3567     AVCodec *codec= NULL;
3568     AVCodecContext *audio_enc;
3569     enum CodecID codec_id = CODEC_ID_NONE;
3570
3571     if(!audio_stream_copy){
3572         if (audio_codec_name) {
3573             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3574                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3575             codec = avcodec_find_encoder_by_name(audio_codec_name);
3576         } else {
3577             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3578             codec = avcodec_find_encoder(codec_id);
3579         }
3580     }
3581     ost = new_output_stream(oc, file_idx, codec);
3582     st  = ost->st;
3583
3584     ost->bitstream_filters = audio_bitstream_filters;
3585     audio_bitstream_filters= NULL;
3586
3587     st->codec->thread_count= thread_count;
3588
3589     audio_enc = st->codec;
3590     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3591
3592     if(audio_codec_tag)
3593         audio_enc->codec_tag= audio_codec_tag;
3594
3595     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3596         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3597         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3598     }
3599     if (audio_stream_copy) {
3600         st->stream_copy = 1;
3601     } else {
3602         audio_enc->codec_id = codec_id;
3603         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3604
3605         if (audio_qscale > QSCALE_NONE) {
3606             audio_enc->flags |= CODEC_FLAG_QSCALE;
3607             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3608         }
3609         if (audio_channels)
3610             audio_enc->channels = audio_channels;
3611         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3612             audio_enc->sample_fmt = audio_sample_fmt;
3613         if (audio_sample_rate)
3614             audio_enc->sample_rate = audio_sample_rate;
3615     }
3616     if (audio_language) {
3617         av_dict_set(&st->metadata, "language", audio_language, 0);
3618         av_freep(&audio_language);
3619     }
3620
3621     /* reset some key parameters */
3622     audio_disable = 0;
3623     av_freep(&audio_codec_name);
3624     audio_stream_copy = 0;
3625 }
3626
3627 static void new_data_stream(AVFormatContext *oc, int file_idx)
3628 {
3629     AVStream *st;
3630     OutputStream *ost;
3631     AVCodecContext *data_enc;
3632
3633     ost = new_output_stream(oc, file_idx, NULL);
3634     st  = ost->st;
3635     data_enc = st->codec;
3636     if (!data_stream_copy) {
3637         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3638         ffmpeg_exit(1);
3639     }
3640
3641     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3642
3643     if (data_codec_tag)
3644         data_enc->codec_tag= data_codec_tag;