Make multiple Ctrl-C capable to kill stuck protocols.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * FFmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_KBHIT
73 #include <conio.h>
74 #endif
75 #include <time.h>
76
77 #include "cmdutils.h"
78
79 #include "libavutil/avassert.h"
80
81 const char program_name[] = "FFmpeg";
82 const int program_birth_year = 2000;
83
84 /* select an input stream for an output stream */
85 typedef struct AVStreamMap {
86     int file_index;
87     int stream_index;
88     int sync_file_index;
89     int sync_stream_index;
90 } AVStreamMap;
91
92 /**
93  * select an input file for an output file
94  */
95 typedef struct AVMetaDataMap {
96     int  file;      //< file index
97     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
98     int  index;     //< stream/chapter/program number
99 } AVMetaDataMap;
100
101 typedef struct AVChapterMap {
102     int in_file;
103     int out_file;
104 } AVChapterMap;
105
106 static const OptionDef options[];
107
108 #define MAX_FILES 100
109 #if !FF_API_MAX_STREAMS
110 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
111 #endif
112
113 static const char *last_asked_format = NULL;
114 static AVFormatContext *input_files[MAX_FILES];
115 static int64_t input_files_ts_offset[MAX_FILES];
116 static double *input_files_ts_scale[MAX_FILES] = {NULL};
117 static AVCodec **input_codecs = NULL;
118 static int nb_input_files = 0;
119 static int nb_input_codecs = 0;
120 static int nb_input_files_ts_scale[MAX_FILES] = {0};
121
122 static AVFormatContext *output_files[MAX_FILES];
123 static AVCodec **output_codecs = NULL;
124 static int nb_output_files = 0;
125 static int nb_output_codecs = 0;
126
127 static AVStreamMap *stream_maps = NULL;
128 static int nb_stream_maps;
129
130 /* first item specifies output metadata, second is input */
131 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
132 static int nb_meta_data_maps;
133 static int metadata_global_autocopy   = 1;
134 static int metadata_streams_autocopy  = 1;
135 static int metadata_chapters_autocopy = 1;
136
137 static AVChapterMap *chapter_maps = NULL;
138 static int nb_chapter_maps;
139
140 /* indexed by output file stream index */
141 static int *streamid_map = NULL;
142 static int nb_streamid_map = 0;
143
144 static int frame_width  = 0;
145 static int frame_height = 0;
146 static float frame_aspect_ratio = 0;
147 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 #endif
171
172 static int intra_only = 0;
173 static int audio_sample_rate = 44100;
174 static int64_t channel_layout = 0;
175 #define QSCALE_NONE -99999
176 static float audio_qscale = QSCALE_NONE;
177 static int audio_disable = 0;
178 static int audio_channels = 1;
179 static char  *audio_codec_name = NULL;
180 static unsigned int audio_codec_tag = 0;
181 static char *audio_language = NULL;
182
183 static int subtitle_disable = 0;
184 static char *subtitle_codec_name = NULL;
185 static char *subtitle_language = NULL;
186 static unsigned int subtitle_codec_tag = 0;
187
188 static float mux_preload= 0.5;
189 static float mux_max_delay= 0.7;
190
191 static int64_t recording_time = INT64_MAX;
192 static int64_t start_time = 0;
193 static int64_t recording_timestamp = 0;
194 static int64_t input_ts_offset = 0;
195 static int file_overwrite = 0;
196 static AVMetadata *metadata;
197 static int do_benchmark = 0;
198 static int do_hex_dump = 0;
199 static int do_pkt_dump = 0;
200 static int do_psnr = 0;
201 static int do_pass = 0;
202 static char *pass_logfilename_prefix = NULL;
203 static int audio_stream_copy = 0;
204 static int video_stream_copy = 0;
205 static int subtitle_stream_copy = 0;
206 static int video_sync_method= -1;
207 static int audio_sync_method= 0;
208 static float audio_drift_threshold= 0.1;
209 static int copy_ts= 0;
210 static int copy_tb;
211 static int opt_shortest = 0;
212 static int video_global_header = 0;
213 static char *vstats_filename;
214 static FILE *vstats_file;
215 static int opt_programid = 0;
216 static int copy_initial_nonkeyframes = 0;
217
218 static int rate_emu = 0;
219
220 static int  video_channel = 0;
221 static char *video_standard;
222
223 static int audio_volume = 256;
224
225 static int exit_on_error = 0;
226 static int using_stdin = 0;
227 static int verbose = 1;
228 static int thread_count= 1;
229 static int q_pressed = 0;
230 static int64_t video_size = 0;
231 static int64_t audio_size = 0;
232 static int64_t extra_size = 0;
233 static int nb_frames_dup = 0;
234 static int nb_frames_drop = 0;
235 static int input_sync;
236 static uint64_t limit_filesize = 0;
237 static int force_fps = 0;
238 static char *forced_key_frames = NULL;
239
240 static float dts_delta_threshold = 10;
241
242 static unsigned int sws_flags = SWS_BICUBIC;
243
244 static int64_t timer_start;
245
246 static uint8_t *audio_buf;
247 static uint8_t *audio_out;
248 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
249
250 static short *samples;
251
252 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
253 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
254 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
255
256 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
257
258 struct AVInputStream;
259
260 typedef struct AVOutputStream {
261     int file_index;          /* file index */
262     int index;               /* stream index in the output file */
263     int source_index;        /* AVInputStream index */
264     AVStream *st;            /* stream in the output file */
265     int encoding_needed;     /* true if encoding needed for this stream */
266     int frame_number;
267     /* input pts and corresponding output pts
268        for A/V sync */
269     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
270     struct AVInputStream *sync_ist; /* input stream to sync against */
271     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
272     AVBitStreamFilterContext *bitstream_filters;
273     /* video only */
274     int video_resample;
275     AVFrame pict_tmp;      /* temporary image for resampling */
276     struct SwsContext *img_resample_ctx; /* for image resampling */
277     int resample_height;
278     int resample_width;
279     int resample_pix_fmt;
280
281     /* full frame size of first frame */
282     int original_height;
283     int original_width;
284
285     /* forced key frames */
286     int64_t *forced_kf_pts;
287     int forced_kf_count;
288     int forced_kf_index;
289
290     /* audio only */
291     int audio_resample;
292     ReSampleContext *resample; /* for audio resampling */
293     int resample_sample_fmt;
294     int resample_channels;
295     int resample_sample_rate;
296     int reformat_pair;
297     AVAudioConvert *reformat_ctx;
298     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
299     FILE *logfile;
300
301 #if CONFIG_AVFILTER
302     AVFilterContext *output_video_filter;
303     AVFilterContext *input_video_filter;
304     AVFilterBufferRef *picref;
305     char *avfilter;
306     AVFilterGraph *graph;
307 #endif
308 } AVOutputStream;
309
310 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
311 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
312
313 typedef struct AVInputStream {
314     int file_index;
315     int index;
316     AVStream *st;
317     int discard;             /* true if stream data should be discarded */
318     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
319     int64_t sample_index;      /* current sample */
320
321     int64_t       start;     /* time when read started */
322     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
323                                 is not defined */
324     int64_t       pts;       /* current pts */
325     int is_start;            /* is 1 at the start and after a discontinuity */
326     int showed_multi_packet_warning;
327     int is_past_recording_time;
328 #if CONFIG_AVFILTER
329     AVFrame *filter_frame;
330     int has_filter_frame;
331 #endif
332 } AVInputStream;
333
334 typedef struct AVInputFile {
335     int eof_reached;      /* true if eof reached */
336     int ist_index;        /* index of first stream in ist_table */
337     int buffer_size;      /* current total buffer size */
338     int nb_streams;       /* nb streams we are aware of */
339 } AVInputFile;
340
341 #if CONFIG_AVFILTER
342
343 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
344 {
345     AVFilterContext *last_filter, *filter;
346     /** filter graph containing all filters including input & output */
347     AVCodecContext *codec = ost->st->codec;
348     AVCodecContext *icodec = ist->st->codec;
349     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
350     AVRational sample_aspect_ratio;
351     char args[255];
352     int ret;
353
354     ost->graph = avfilter_graph_alloc();
355
356     if (ist->st->sample_aspect_ratio.num){
357         sample_aspect_ratio = ist->st->sample_aspect_ratio;
358     }else
359         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
360
361     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
362              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
363              sample_aspect_ratio.num, sample_aspect_ratio.den);
364
365     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
366                                        "src", args, NULL, ost->graph);
367     if (ret < 0)
368         return ret;
369     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
370                                        "out", NULL, &ffsink_ctx, ost->graph);
371     if (ret < 0)
372         return ret;
373     last_filter = ost->input_video_filter;
374
375     if (codec->width  != icodec->width || codec->height != icodec->height) {
376         snprintf(args, 255, "%d:%d:flags=0x%X",
377                  codec->width,
378                  codec->height,
379                  (int)av_get_int(sws_opts, "sws_flags", NULL));
380         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381                                                 NULL, args, NULL, ost->graph)) < 0)
382             return ret;
383         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
384             return ret;
385         last_filter = filter;
386     }
387
388     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
389     ost->graph->scale_sws_opts = av_strdup(args);
390
391     if (ost->avfilter) {
392         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
393         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
394
395         outputs->name    = av_strdup("in");
396         outputs->filter_ctx = last_filter;
397         outputs->pad_idx = 0;
398         outputs->next    = NULL;
399
400         inputs->name    = av_strdup("out");
401         inputs->filter_ctx = ost->output_video_filter;
402         inputs->pad_idx = 0;
403         inputs->next    = NULL;
404
405         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
406             return ret;
407         av_freep(&ost->avfilter);
408     } else {
409         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
410             return ret;
411     }
412
413     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
414         return ret;
415
416     codec->width  = ost->output_video_filter->inputs[0]->w;
417     codec->height = ost->output_video_filter->inputs[0]->h;
418     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
419         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
420
421     return 0;
422 }
423 #endif /* CONFIG_AVFILTER */
424
425 static void term_exit(void)
426 {
427     av_log(NULL, AV_LOG_QUIET, "");
428 }
429
430 static volatile int received_sigterm = 0;
431
432 static void
433 sigterm_handler(int sig)
434 {
435     received_sigterm = sig;
436     q_pressed++;
437     term_exit();
438 }
439
440 static void term_init(void)
441 {
442     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
443     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
444 #ifdef SIGXCPU
445     signal(SIGXCPU, sigterm_handler);
446 #endif
447 }
448
449 /* read a key without blocking */
450 static int read_key(void)
451 {
452 #if HAVE_KBHIT
453     if(kbhit())
454         return(getch());
455 #endif
456     return -1;
457 }
458
459 static int decode_interrupt_cb(void)
460 {
461     q_pressed += read_key() == 'q';
462     return q_pressed > 1;
463 }
464
465 static int ffmpeg_exit(int ret)
466 {
467     int i;
468
469     /* close files */
470     for(i=0;i<nb_output_files;i++) {
471         AVFormatContext *s = output_files[i];
472         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
473             avio_close(s->pb);
474         avformat_free_context(s);
475         av_free(output_streams_for_file[i]);
476     }
477     for(i=0;i<nb_input_files;i++) {
478         av_close_input_file(input_files[i]);
479         av_free(input_files_ts_scale[i]);
480     }
481
482     av_free(intra_matrix);
483     av_free(inter_matrix);
484
485     if (vstats_file)
486         fclose(vstats_file);
487     av_free(vstats_filename);
488
489     av_free(streamid_map);
490     av_free(input_codecs);
491     av_free(output_codecs);
492     av_free(stream_maps);
493     av_free(meta_data_maps);
494
495     av_free(video_codec_name);
496     av_free(audio_codec_name);
497     av_free(subtitle_codec_name);
498
499     av_free(video_standard);
500
501     uninit_opts();
502     av_free(audio_buf);
503     av_free(audio_out);
504     allocated_audio_buf_size= allocated_audio_out_size= 0;
505     av_free(samples);
506
507 #if CONFIG_AVFILTER
508     avfilter_uninit();
509 #endif
510
511     if (received_sigterm) {
512         fprintf(stderr,
513             "Received signal %d: terminating.\n",
514             (int) received_sigterm);
515         exit (255);
516     }
517
518     exit(ret); /* not all OS-es handle main() return value */
519     return ret;
520 }
521
522 /* similar to ff_dynarray_add() and av_fast_realloc() */
523 static void *grow_array(void *array, int elem_size, int *size, int new_size)
524 {
525     if (new_size >= INT_MAX / elem_size) {
526         fprintf(stderr, "Array too big.\n");
527         ffmpeg_exit(1);
528     }
529     if (*size < new_size) {
530         uint8_t *tmp = av_realloc(array, new_size*elem_size);
531         if (!tmp) {
532             fprintf(stderr, "Could not alloc buffer.\n");
533             ffmpeg_exit(1);
534         }
535         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
536         *size = new_size;
537         return tmp;
538     }
539     return array;
540 }
541
542 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
543 {
544     if(codec && codec->sample_fmts){
545         const enum AVSampleFormat *p= codec->sample_fmts;
546         for(; *p!=-1; p++){
547             if(*p == st->codec->sample_fmt)
548                 break;
549         }
550         if (*p == -1) {
551             av_log(NULL, AV_LOG_WARNING,
552                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
553                    av_get_sample_fmt_name(st->codec->sample_fmt),
554                    codec->name,
555                    av_get_sample_fmt_name(codec->sample_fmts[0]));
556             st->codec->sample_fmt = codec->sample_fmts[0];
557         }
558     }
559 }
560
561 static void choose_sample_rate(AVStream *st, AVCodec *codec)
562 {
563     if(codec && codec->supported_samplerates){
564         const int *p= codec->supported_samplerates;
565         int best=0;
566         int best_dist=INT_MAX;
567         for(; *p; p++){
568             int dist= abs(st->codec->sample_rate - *p);
569             if(dist < best_dist){
570                 best_dist= dist;
571                 best= *p;
572             }
573         }
574         if(best_dist){
575             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
576         }
577         st->codec->sample_rate= best;
578     }
579 }
580
581 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
582 {
583     if(codec && codec->pix_fmts){
584         const enum PixelFormat *p= codec->pix_fmts;
585         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
586             if(st->codec->codec_id==CODEC_ID_MJPEG){
587                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
588             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
589                 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};
590             }
591         }
592         for(; *p!=-1; p++){
593             if(*p == st->codec->pix_fmt)
594                 break;
595         }
596         if(*p == -1)
597             st->codec->pix_fmt = codec->pix_fmts[0];
598     }
599 }
600
601 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
602 {
603     int idx = oc->nb_streams - 1;
604     AVOutputStream *ost;
605
606     output_streams_for_file[file_idx] =
607         grow_array(output_streams_for_file[file_idx],
608                    sizeof(*output_streams_for_file[file_idx]),
609                    &nb_output_streams_for_file[file_idx],
610                    oc->nb_streams);
611     ost = output_streams_for_file[file_idx][idx] =
612         av_mallocz(sizeof(AVOutputStream));
613     if (!ost) {
614         fprintf(stderr, "Could not alloc output stream\n");
615         ffmpeg_exit(1);
616     }
617     ost->file_index = file_idx;
618     ost->index = idx;
619     return ost;
620 }
621
622 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
623 {
624     int i, err;
625     AVFormatContext *ic;
626     int nopts = 0;
627
628     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
629     if (err < 0)
630         return err;
631     /* copy stream format */
632     s->nb_streams = 0;
633     for(i=0;i<ic->nb_streams;i++) {
634         AVStream *st;
635         AVCodec *codec;
636
637         s->nb_streams++;
638
639         // FIXME: a more elegant solution is needed
640         st = av_mallocz(sizeof(AVStream));
641         memcpy(st, ic->streams[i], sizeof(AVStream));
642         st->codec = avcodec_alloc_context();
643         if (!st->codec) {
644             print_error(filename, AVERROR(ENOMEM));
645             ffmpeg_exit(1);
646         }
647         avcodec_copy_context(st->codec, ic->streams[i]->codec);
648         s->streams[i] = st;
649
650         codec = avcodec_find_encoder(st->codec->codec_id);
651         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
652             if (audio_stream_copy) {
653                 st->stream_copy = 1;
654             } else
655                 choose_sample_fmt(st, codec);
656         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
657             if (video_stream_copy) {
658                 st->stream_copy = 1;
659             } else
660                 choose_pixel_fmt(st, codec);
661         }
662
663         if(st->codec->flags & CODEC_FLAG_BITEXACT)
664             nopts = 1;
665
666         new_output_stream(s, nb_output_files);
667     }
668
669     if (!nopts)
670         s->timestamp = av_gettime();
671
672     av_close_input_file(ic);
673     return 0;
674 }
675
676 static double
677 get_sync_ipts(const AVOutputStream *ost)
678 {
679     const AVInputStream *ist = ost->sync_ist;
680     return (double)(ist->pts - start_time)/AV_TIME_BASE;
681 }
682
683 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
684     int ret;
685
686     while(bsfc){
687         AVPacket new_pkt= *pkt;
688         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
689                                           &new_pkt.data, &new_pkt.size,
690                                           pkt->data, pkt->size,
691                                           pkt->flags & AV_PKT_FLAG_KEY);
692         if(a>0){
693             av_free_packet(pkt);
694             new_pkt.destruct= av_destruct_packet;
695         } else if(a<0){
696             fprintf(stderr, "%s failed for stream %d, codec %s",
697                     bsfc->filter->name, pkt->stream_index,
698                     avctx->codec ? avctx->codec->name : "copy");
699             print_error("", a);
700             if (exit_on_error)
701                 ffmpeg_exit(1);
702         }
703         *pkt= new_pkt;
704
705         bsfc= bsfc->next;
706     }
707
708     ret= av_interleaved_write_frame(s, pkt);
709     if(ret < 0){
710         print_error("av_interleaved_write_frame()", ret);
711         ffmpeg_exit(1);
712     }
713 }
714
715 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
716
717 static void do_audio_out(AVFormatContext *s,
718                          AVOutputStream *ost,
719                          AVInputStream *ist,
720                          unsigned char *buf, int size)
721 {
722     uint8_t *buftmp;
723     int64_t audio_out_size, audio_buf_size;
724     int64_t allocated_for_size= size;
725
726     int size_out, frame_bytes, ret, resample_changed;
727     AVCodecContext *enc= ost->st->codec;
728     AVCodecContext *dec= ist->st->codec;
729     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
730     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
731     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
732
733 need_realloc:
734     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
735     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
736     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
737     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
738     audio_buf_size*= osize*enc->channels;
739
740     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
741     if(coded_bps > 8*osize)
742         audio_out_size= audio_out_size * coded_bps / (8*osize);
743     audio_out_size += FF_MIN_BUFFER_SIZE;
744
745     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
746         fprintf(stderr, "Buffer sizes too large\n");
747         ffmpeg_exit(1);
748     }
749
750     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
751     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
752     if (!audio_buf || !audio_out){
753         fprintf(stderr, "Out of memory in do_audio_out\n");
754         ffmpeg_exit(1);
755     }
756
757     if (enc->channels != dec->channels)
758         ost->audio_resample = 1;
759
760     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
761                        ost->resample_channels    != dec->channels   ||
762                        ost->resample_sample_rate != dec->sample_rate;
763
764     if ((ost->audio_resample && !ost->resample) || resample_changed) {
765         if (resample_changed) {
766             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",
767                    ist->file_index, ist->index,
768                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
769                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
770             ost->resample_sample_fmt  = dec->sample_fmt;
771             ost->resample_channels    = dec->channels;
772             ost->resample_sample_rate = dec->sample_rate;
773             if (ost->resample)
774                 audio_resample_close(ost->resample);
775         }
776         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
777         if (audio_sync_method <= 1 &&
778             ost->resample_sample_fmt  == enc->sample_fmt &&
779             ost->resample_channels    == enc->channels   &&
780             ost->resample_sample_rate == enc->sample_rate) {
781             ost->resample = NULL;
782             ost->audio_resample = 0;
783         } else {
784             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
785                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
786             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
787                                                    enc->sample_rate, dec->sample_rate,
788                                                    enc->sample_fmt,  dec->sample_fmt,
789                                                    16, 10, 0, 0.8);
790             if (!ost->resample) {
791                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
792                         dec->channels, dec->sample_rate,
793                         enc->channels, enc->sample_rate);
794                 ffmpeg_exit(1);
795             }
796         }
797     }
798
799 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
800     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
801         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
802         if (ost->reformat_ctx)
803             av_audio_convert_free(ost->reformat_ctx);
804         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
805                                                    dec->sample_fmt, 1, NULL, 0);
806         if (!ost->reformat_ctx) {
807             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
808                 av_get_sample_fmt_name(dec->sample_fmt),
809                 av_get_sample_fmt_name(enc->sample_fmt));
810             ffmpeg_exit(1);
811         }
812         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
813     }
814
815     if(audio_sync_method){
816         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
817                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
818         double idelta= delta*dec->sample_rate / enc->sample_rate;
819         int byte_delta= ((int)idelta)*2*dec->channels;
820
821         //FIXME resample delay
822         if(fabs(delta) > 50){
823             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
824                 if(byte_delta < 0){
825                     byte_delta= FFMAX(byte_delta, -size);
826                     size += byte_delta;
827                     buf  -= byte_delta;
828                     if(verbose > 2)
829                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
830                     if(!size)
831                         return;
832                     ist->is_start=0;
833                 }else{
834                     static uint8_t *input_tmp= NULL;
835                     input_tmp= av_realloc(input_tmp, byte_delta + size);
836
837                     if(byte_delta > allocated_for_size - size){
838                         allocated_for_size= byte_delta + (int64_t)size;
839                         goto need_realloc;
840                     }
841                     ist->is_start=0;
842
843                     memset(input_tmp, 0, byte_delta);
844                     memcpy(input_tmp + byte_delta, buf, size);
845                     buf= input_tmp;
846                     size += byte_delta;
847                     if(verbose > 2)
848                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
849                 }
850             }else if(audio_sync_method>1){
851                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
852                 av_assert0(ost->audio_resample);
853                 if(verbose > 2)
854                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
855 //                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));
856                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
857             }
858         }
859     }else
860         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
861                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
862
863     if (ost->audio_resample) {
864         buftmp = audio_buf;
865         size_out = audio_resample(ost->resample,
866                                   (short *)buftmp, (short *)buf,
867                                   size / (dec->channels * isize));
868         size_out = size_out * enc->channels * osize;
869     } else {
870         buftmp = buf;
871         size_out = size;
872     }
873
874     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
875         const void *ibuf[6]= {buftmp};
876         void *obuf[6]= {audio_buf};
877         int istride[6]= {isize};
878         int ostride[6]= {osize};
879         int len= size_out/istride[0];
880         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
881             printf("av_audio_convert() failed\n");
882             if (exit_on_error)
883                 ffmpeg_exit(1);
884             return;
885         }
886         buftmp = audio_buf;
887         size_out = len*osize;
888     }
889
890     /* now encode as many frames as possible */
891     if (enc->frame_size > 1) {
892         /* output resampled raw samples */
893         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
894             fprintf(stderr, "av_fifo_realloc2() failed\n");
895             ffmpeg_exit(1);
896         }
897         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
898
899         frame_bytes = enc->frame_size * osize * enc->channels;
900
901         while (av_fifo_size(ost->fifo) >= frame_bytes) {
902             AVPacket pkt;
903             av_init_packet(&pkt);
904
905             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
906
907             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
908
909             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
910                                        (short *)audio_buf);
911             if (ret < 0) {
912                 fprintf(stderr, "Audio encoding failed\n");
913                 ffmpeg_exit(1);
914             }
915             audio_size += ret;
916             pkt.stream_index= ost->index;
917             pkt.data= audio_out;
918             pkt.size= ret;
919             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
920                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
921             pkt.flags |= AV_PKT_FLAG_KEY;
922             write_frame(s, &pkt, enc, ost->bitstream_filters);
923
924             ost->sync_opts += enc->frame_size;
925         }
926     } else {
927         AVPacket pkt;
928         av_init_packet(&pkt);
929
930         ost->sync_opts += size_out / (osize * enc->channels);
931
932         /* output a pcm frame */
933         /* determine the size of the coded buffer */
934         size_out /= osize;
935         if (coded_bps)
936             size_out = size_out*coded_bps/8;
937
938         if(size_out > audio_out_size){
939             fprintf(stderr, "Internal error, buffer size too small\n");
940             ffmpeg_exit(1);
941         }
942
943         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
944         ret = avcodec_encode_audio(enc, audio_out, size_out,
945                                    (short *)buftmp);
946         if (ret < 0) {
947             fprintf(stderr, "Audio encoding failed\n");
948             ffmpeg_exit(1);
949         }
950         audio_size += ret;
951         pkt.stream_index= ost->index;
952         pkt.data= audio_out;
953         pkt.size= ret;
954         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
955             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
956         pkt.flags |= AV_PKT_FLAG_KEY;
957         write_frame(s, &pkt, enc, ost->bitstream_filters);
958     }
959 }
960
961 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
962 {
963     AVCodecContext *dec;
964     AVPicture *picture2;
965     AVPicture picture_tmp;
966     uint8_t *buf = 0;
967
968     dec = ist->st->codec;
969
970     /* deinterlace : must be done before any resize */
971     if (do_deinterlace) {
972         int size;
973
974         /* create temporary picture */
975         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
976         buf = av_malloc(size);
977         if (!buf)
978             return;
979
980         picture2 = &picture_tmp;
981         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
982
983         if(avpicture_deinterlace(picture2, picture,
984                                  dec->pix_fmt, dec->width, dec->height) < 0) {
985             /* if error, do not deinterlace */
986             fprintf(stderr, "Deinterlacing failed\n");
987             av_free(buf);
988             buf = NULL;
989             picture2 = picture;
990         }
991     } else {
992         picture2 = picture;
993     }
994
995     if (picture != picture2)
996         *picture = *picture2;
997     *bufp = buf;
998 }
999
1000 /* we begin to correct av delay at this threshold */
1001 #define AV_DELAY_MAX 0.100
1002
1003 static void do_subtitle_out(AVFormatContext *s,
1004                             AVOutputStream *ost,
1005                             AVInputStream *ist,
1006                             AVSubtitle *sub,
1007                             int64_t pts)
1008 {
1009     static uint8_t *subtitle_out = NULL;
1010     int subtitle_out_max_size = 1024 * 1024;
1011     int subtitle_out_size, nb, i;
1012     AVCodecContext *enc;
1013     AVPacket pkt;
1014
1015     if (pts == AV_NOPTS_VALUE) {
1016         fprintf(stderr, "Subtitle packets must have a pts\n");
1017         if (exit_on_error)
1018             ffmpeg_exit(1);
1019         return;
1020     }
1021
1022     enc = ost->st->codec;
1023
1024     if (!subtitle_out) {
1025         subtitle_out = av_malloc(subtitle_out_max_size);
1026     }
1027
1028     /* Note: DVB subtitle need one packet to draw them and one other
1029        packet to clear them */
1030     /* XXX: signal it in the codec context ? */
1031     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1032         nb = 2;
1033     else
1034         nb = 1;
1035
1036     for(i = 0; i < nb; i++) {
1037         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1038         // start_display_time is required to be 0
1039         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1040         sub->end_display_time -= sub->start_display_time;
1041         sub->start_display_time = 0;
1042         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1043                                                     subtitle_out_max_size, sub);
1044         if (subtitle_out_size < 0) {
1045             fprintf(stderr, "Subtitle encoding failed\n");
1046             ffmpeg_exit(1);
1047         }
1048
1049         av_init_packet(&pkt);
1050         pkt.stream_index = ost->index;
1051         pkt.data = subtitle_out;
1052         pkt.size = subtitle_out_size;
1053         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1054         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1055             /* XXX: the pts correction is handled here. Maybe handling
1056                it in the codec would be better */
1057             if (i == 0)
1058                 pkt.pts += 90 * sub->start_display_time;
1059             else
1060                 pkt.pts += 90 * sub->end_display_time;
1061         }
1062         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1063     }
1064 }
1065
1066 static int bit_buffer_size= 1024*256;
1067 static uint8_t *bit_buffer= NULL;
1068
1069 static void do_video_out(AVFormatContext *s,
1070                          AVOutputStream *ost,
1071                          AVInputStream *ist,
1072                          AVFrame *in_picture,
1073                          int *frame_size)
1074 {
1075     int nb_frames, i, ret;
1076     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1077     AVCodecContext *enc, *dec;
1078     double sync_ipts;
1079
1080     enc = ost->st->codec;
1081     dec = ist->st->codec;
1082
1083     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1084
1085     /* by default, we output a single frame */
1086     nb_frames = 1;
1087
1088     *frame_size = 0;
1089
1090     if(video_sync_method){
1091         double vdelta = sync_ipts - ost->sync_opts;
1092         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1093         if (vdelta < -1.1)
1094             nb_frames = 0;
1095         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1096             if(vdelta<=-0.6){
1097                 nb_frames=0;
1098             }else if(vdelta>0.6)
1099                 ost->sync_opts= lrintf(sync_ipts);
1100         }else if (vdelta > 1.1)
1101             nb_frames = lrintf(vdelta);
1102 //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);
1103         if (nb_frames == 0){
1104             ++nb_frames_drop;
1105             if (verbose>2)
1106                 fprintf(stderr, "*** drop!\n");
1107         }else if (nb_frames > 1) {
1108             nb_frames_dup += nb_frames - 1;
1109             if (verbose>2)
1110                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1111         }
1112     }else
1113         ost->sync_opts= lrintf(sync_ipts);
1114
1115     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1116     if (nb_frames <= 0)
1117         return;
1118
1119     formatted_picture = in_picture;
1120     final_picture = formatted_picture;
1121     padding_src = formatted_picture;
1122     resampling_dst = &ost->pict_tmp;
1123
1124     if (   ost->resample_height != ist->st->codec->height
1125         || ost->resample_width  != ist->st->codec->width
1126         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1127
1128         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1129         if(!ost->video_resample)
1130             ffmpeg_exit(1);
1131     }
1132
1133 #if !CONFIG_AVFILTER
1134     if (ost->video_resample) {
1135         padding_src = NULL;
1136         final_picture = &ost->pict_tmp;
1137         if(  ost->resample_height != ist->st->codec->height
1138           || ost->resample_width  != ist->st->codec->width
1139           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1140
1141             /* initialize a new scaler context */
1142             sws_freeContext(ost->img_resample_ctx);
1143             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1144             ost->img_resample_ctx = sws_getContext(
1145                 ist->st->codec->width,
1146                 ist->st->codec->height,
1147                 ist->st->codec->pix_fmt,
1148                 ost->st->codec->width,
1149                 ost->st->codec->height,
1150                 ost->st->codec->pix_fmt,
1151                 sws_flags, NULL, NULL, NULL);
1152             if (ost->img_resample_ctx == NULL) {
1153                 fprintf(stderr, "Cannot get resampling context\n");
1154                 ffmpeg_exit(1);
1155             }
1156         }
1157         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1158               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1159     }
1160 #endif
1161
1162     /* duplicates frame if needed */
1163     for(i=0;i<nb_frames;i++) {
1164         AVPacket pkt;
1165         av_init_packet(&pkt);
1166         pkt.stream_index= ost->index;
1167
1168         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1169             /* raw pictures are written as AVPicture structure to
1170                avoid any copies. We support temorarily the older
1171                method. */
1172             AVFrame* old_frame = enc->coded_frame;
1173             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1174             pkt.data= (uint8_t *)final_picture;
1175             pkt.size=  sizeof(AVPicture);
1176             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1177             pkt.flags |= AV_PKT_FLAG_KEY;
1178
1179             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1180             enc->coded_frame = old_frame;
1181         } else {
1182             AVFrame big_picture;
1183
1184             big_picture= *final_picture;
1185             /* better than nothing: use input picture interlaced
1186                settings */
1187             big_picture.interlaced_frame = in_picture->interlaced_frame;
1188             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1189                 if(top_field_first == -1)
1190                     big_picture.top_field_first = in_picture->top_field_first;
1191                 else
1192                     big_picture.top_field_first = top_field_first;
1193             }
1194
1195             /* handles sameq here. This is not correct because it may
1196                not be a global option */
1197             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1198             if(!me_threshold)
1199                 big_picture.pict_type = 0;
1200 //            big_picture.pts = AV_NOPTS_VALUE;
1201             big_picture.pts= ost->sync_opts;
1202 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1203 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1204             if (ost->forced_kf_index < ost->forced_kf_count &&
1205                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1206                 big_picture.pict_type = FF_I_TYPE;
1207                 ost->forced_kf_index++;
1208             }
1209             ret = avcodec_encode_video(enc,
1210                                        bit_buffer, bit_buffer_size,
1211                                        &big_picture);
1212             if (ret < 0) {
1213                 fprintf(stderr, "Video encoding failed\n");
1214                 ffmpeg_exit(1);
1215             }
1216
1217             if(ret>0){
1218                 pkt.data= bit_buffer;
1219                 pkt.size= ret;
1220                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1221                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1222 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1223    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1224    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1225
1226                 if(enc->coded_frame->key_frame)
1227                     pkt.flags |= AV_PKT_FLAG_KEY;
1228                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1229                 *frame_size = ret;
1230                 video_size += ret;
1231                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1232                 //        enc->frame_number-1, ret, enc->pict_type);
1233                 /* if two pass, output log */
1234                 if (ost->logfile && enc->stats_out) {
1235                     fprintf(ost->logfile, "%s", enc->stats_out);
1236                 }
1237             }
1238         }
1239         ost->sync_opts++;
1240         ost->frame_number++;
1241     }
1242 }
1243
1244 static double psnr(double d){
1245     return -10.0*log(d)/log(10.0);
1246 }
1247
1248 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1249                            int frame_size)
1250 {
1251     AVCodecContext *enc;
1252     int frame_number;
1253     double ti1, bitrate, avg_bitrate;
1254
1255     /* this is executed just the first time do_video_stats is called */
1256     if (!vstats_file) {
1257         vstats_file = fopen(vstats_filename, "w");
1258         if (!vstats_file) {
1259             perror("fopen");
1260             ffmpeg_exit(1);
1261         }
1262     }
1263
1264     enc = ost->st->codec;
1265     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1266         frame_number = ost->frame_number;
1267         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1268         if (enc->flags&CODEC_FLAG_PSNR)
1269             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1270
1271         fprintf(vstats_file,"f_size= %6d ", frame_size);
1272         /* compute pts value */
1273         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1274         if (ti1 < 0.01)
1275             ti1 = 0.01;
1276
1277         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1278         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1279         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1280             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1281         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1282     }
1283 }
1284
1285 static void print_report(AVFormatContext **output_files,
1286                          AVOutputStream **ost_table, int nb_ostreams,
1287                          int is_last_report)
1288 {
1289     char buf[1024];
1290     AVOutputStream *ost;
1291     AVFormatContext *oc;
1292     int64_t total_size;
1293     AVCodecContext *enc;
1294     int frame_number, vid, i;
1295     double bitrate, ti1, pts;
1296     static int64_t last_time = -1;
1297     static int qp_histogram[52];
1298
1299     if (!is_last_report) {
1300         int64_t cur_time;
1301         /* display the report every 0.5 seconds */
1302         cur_time = av_gettime();
1303         if (last_time == -1) {
1304             last_time = cur_time;
1305             return;
1306         }
1307         if ((cur_time - last_time) < 500000)
1308             return;
1309         last_time = cur_time;
1310     }
1311
1312
1313     oc = output_files[0];
1314
1315     total_size = avio_size(oc->pb);
1316     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1317         total_size= avio_tell(oc->pb);
1318
1319     buf[0] = '\0';
1320     ti1 = 1e10;
1321     vid = 0;
1322     for(i=0;i<nb_ostreams;i++) {
1323         ost = ost_table[i];
1324         enc = ost->st->codec;
1325         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1327                      !ost->st->stream_copy ?
1328                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1329         }
1330         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1331             float t = (av_gettime()-timer_start) / 1000000.0;
1332
1333             frame_number = ost->frame_number;
1334             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1335                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1336                      !ost->st->stream_copy ?
1337                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1338             if(is_last_report)
1339                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1340             if(qp_hist){
1341                 int j;
1342                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1343                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1344                     qp_histogram[qp]++;
1345                 for(j=0; j<32; j++)
1346                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1347             }
1348             if (enc->flags&CODEC_FLAG_PSNR){
1349                 int j;
1350                 double error, error_sum=0;
1351                 double scale, scale_sum=0;
1352                 char type[3]= {'Y','U','V'};
1353                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1354                 for(j=0; j<3; j++){
1355                     if(is_last_report){
1356                         error= enc->error[j];
1357                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1358                     }else{
1359                         error= enc->coded_frame->error[j];
1360                         scale= enc->width*enc->height*255.0*255.0;
1361                     }
1362                     if(j) scale/=4;
1363                     error_sum += error;
1364                     scale_sum += scale;
1365                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1366                 }
1367                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1368             }
1369             vid = 1;
1370         }
1371         /* compute min output value */
1372         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1373         if ((pts < ti1) && (pts > 0))
1374             ti1 = pts;
1375     }
1376     if (ti1 < 0.01)
1377         ti1 = 0.01;
1378
1379     if (verbose || is_last_report) {
1380         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1381
1382         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1383             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1384             (double)total_size / 1024, ti1, bitrate);
1385
1386         if (nb_frames_dup || nb_frames_drop)
1387           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1388                   nb_frames_dup, nb_frames_drop);
1389
1390         if (verbose >= 0)
1391             fprintf(stderr, "%s    \r", buf);
1392
1393         fflush(stderr);
1394     }
1395
1396     if (is_last_report && verbose >= 0){
1397         int64_t raw= audio_size + video_size + extra_size;
1398         fprintf(stderr, "\n");
1399         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1400                 video_size/1024.0,
1401                 audio_size/1024.0,
1402                 extra_size/1024.0,
1403                 100.0*(total_size - raw)/raw
1404         );
1405     }
1406 }
1407
1408 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1409 static int output_packet(AVInputStream *ist, int ist_index,
1410                          AVOutputStream **ost_table, int nb_ostreams,
1411                          const AVPacket *pkt)
1412 {
1413     AVFormatContext *os;
1414     AVOutputStream *ost;
1415     int ret, i;
1416     int got_picture;
1417     AVFrame picture;
1418     void *buffer_to_free;
1419     static unsigned int samples_size= 0;
1420     AVSubtitle subtitle, *subtitle_to_free;
1421     int64_t pkt_pts = AV_NOPTS_VALUE;
1422 #if CONFIG_AVFILTER
1423     int frame_available;
1424 #endif
1425
1426     AVPacket avpkt;
1427     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1428
1429     if(ist->next_pts == AV_NOPTS_VALUE)
1430         ist->next_pts= ist->pts;
1431
1432     if (pkt == NULL) {
1433         /* EOF handling */
1434         av_init_packet(&avpkt);
1435         avpkt.data = NULL;
1436         avpkt.size = 0;
1437         goto handle_eof;
1438     } else {
1439         avpkt = *pkt;
1440     }
1441
1442     if(pkt->dts != AV_NOPTS_VALUE)
1443         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1444     if(pkt->pts != AV_NOPTS_VALUE)
1445         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1446
1447     //while we have more to decode or while the decoder did output something on EOF
1448     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1449         uint8_t *data_buf, *decoded_data_buf;
1450         int data_size, decoded_data_size;
1451     handle_eof:
1452         ist->pts= ist->next_pts;
1453
1454         if(avpkt.size && avpkt.size != pkt->size &&
1455            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1456             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1457             ist->showed_multi_packet_warning=1;
1458         }
1459
1460         /* decode the packet if needed */
1461         decoded_data_buf = NULL; /* fail safe */
1462         decoded_data_size= 0;
1463         data_buf  = avpkt.data;
1464         data_size = avpkt.size;
1465         subtitle_to_free = NULL;
1466         if (ist->decoding_needed) {
1467             switch(ist->st->codec->codec_type) {
1468             case AVMEDIA_TYPE_AUDIO:{
1469                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1470                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1471                     av_free(samples);
1472                     samples= av_malloc(samples_size);
1473                 }
1474                 decoded_data_size= samples_size;
1475                     /* XXX: could avoid copy if PCM 16 bits with same
1476                        endianness as CPU */
1477                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1478                                             &avpkt);
1479                 if (ret < 0)
1480                     goto fail_decode;
1481                 avpkt.data += ret;
1482                 avpkt.size -= ret;
1483                 data_size   = ret;
1484                 /* Some bug in mpeg audio decoder gives */
1485                 /* decoded_data_size < 0, it seems they are overflows */
1486                 if (decoded_data_size <= 0) {
1487                     /* no audio frame */
1488                     continue;
1489                 }
1490                 decoded_data_buf = (uint8_t *)samples;
1491                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1492                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1493                 break;}
1494             case AVMEDIA_TYPE_VIDEO:
1495                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1496                     /* XXX: allocate picture correctly */
1497                     avcodec_get_frame_defaults(&picture);
1498                     avpkt.pts = pkt_pts;
1499                     avpkt.dts = ist->pts;
1500                     pkt_pts = AV_NOPTS_VALUE;
1501
1502                     ret = avcodec_decode_video2(ist->st->codec,
1503                                                 &picture, &got_picture, &avpkt);
1504                     ist->st->quality= picture.quality;
1505                     if (ret < 0)
1506                         goto fail_decode;
1507                     if (!got_picture) {
1508                         /* no picture yet */
1509                         goto discard_packet;
1510                     }
1511                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1512                     if (ist->st->codec->time_base.num != 0) {
1513                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1514                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1515                                           ist->st->codec->time_base.num * ticks) /
1516                             ist->st->codec->time_base.den;
1517                     }
1518                     avpkt.size = 0;
1519                     break;
1520             case AVMEDIA_TYPE_SUBTITLE:
1521                 ret = avcodec_decode_subtitle2(ist->st->codec,
1522                                                &subtitle, &got_picture, &avpkt);
1523                 if (ret < 0)
1524                     goto fail_decode;
1525                 if (!got_picture) {
1526                     goto discard_packet;
1527                 }
1528                 subtitle_to_free = &subtitle;
1529                 avpkt.size = 0;
1530                 break;
1531             default:
1532                 goto fail_decode;
1533             }
1534         } else {
1535             switch(ist->st->codec->codec_type) {
1536             case AVMEDIA_TYPE_AUDIO:
1537                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1538                     ist->st->codec->sample_rate;
1539                 break;
1540             case AVMEDIA_TYPE_VIDEO:
1541                 if (ist->st->codec->time_base.num != 0) {
1542                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1543                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1544                                       ist->st->codec->time_base.num * ticks) /
1545                         ist->st->codec->time_base.den;
1546                 }
1547                 break;
1548             }
1549             ret = avpkt.size;
1550             avpkt.size = 0;
1551         }
1552
1553         buffer_to_free = NULL;
1554         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1555             pre_process_video_frame(ist, (AVPicture *)&picture,
1556                                     &buffer_to_free);
1557         }
1558
1559 #if CONFIG_AVFILTER
1560         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
1561             for(i=0;i<nb_ostreams;i++) {
1562                 ost = ost_table[i];
1563                 if (ost->input_video_filter && ost->source_index == ist_index) {
1564                     AVRational sar;
1565                     if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1566                     else                                  sar = ist->st->codec->sample_aspect_ratio;
1567                     // add it to be filtered
1568                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1569                                              ist->pts,
1570                                              sar);
1571                 }
1572             }
1573         }
1574 #endif
1575
1576         // preprocess audio (volume)
1577         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1578             if (audio_volume != 256) {
1579                 short *volp;
1580                 volp = samples;
1581                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1582                     int v = ((*volp) * audio_volume + 128) >> 8;
1583                     if (v < -32768) v = -32768;
1584                     if (v >  32767) v = 32767;
1585                     *volp++ = v;
1586                 }
1587             }
1588         }
1589
1590         /* frame rate emulation */
1591         if (rate_emu) {
1592             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1593             int64_t now = av_gettime() - ist->start;
1594             if (pts > now)
1595                 usleep(pts - now);
1596         }
1597         /* if output time reached then transcode raw format,
1598            encode packets and output them */
1599         if (start_time == 0 || ist->pts >= start_time)
1600             for(i=0;i<nb_ostreams;i++) {
1601                 int frame_size;
1602
1603                 ost = ost_table[i];
1604                 if (ost->source_index == ist_index) {
1605 #if CONFIG_AVFILTER
1606                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1607                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1608                 while (frame_available) {
1609                     AVRational ist_pts_tb;
1610                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1611                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1612                     if (ost->picref)
1613                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1614 #endif
1615                     os = output_files[ost->file_index];
1616
1617                     /* set the input output pts pairs */
1618                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1619
1620                     if (ost->encoding_needed) {
1621                         av_assert0(ist->decoding_needed);
1622                         switch(ost->st->codec->codec_type) {
1623                         case AVMEDIA_TYPE_AUDIO:
1624                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1625                             break;
1626                         case AVMEDIA_TYPE_VIDEO:
1627 #if CONFIG_AVFILTER
1628                             if (ost->picref->video)
1629                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1630 #endif
1631                             do_video_out(os, ost, ist, &picture, &frame_size);
1632                             if (vstats_filename && frame_size)
1633                                 do_video_stats(os, ost, frame_size);
1634                             break;
1635                         case AVMEDIA_TYPE_SUBTITLE:
1636                             do_subtitle_out(os, ost, ist, &subtitle,
1637                                             pkt->pts);
1638                             break;
1639                         default:
1640                             abort();
1641                         }
1642                     } else {
1643                         AVFrame avframe; //FIXME/XXX remove this
1644                         AVPacket opkt;
1645                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1646
1647                         av_init_packet(&opkt);
1648
1649                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1650 #if !CONFIG_AVFILTER
1651                             continue;
1652 #else
1653                             goto cont;
1654 #endif
1655
1656                         /* no reencoding needed : output the packet directly */
1657                         /* force the input stream PTS */
1658
1659                         avcodec_get_frame_defaults(&avframe);
1660                         ost->st->codec->coded_frame= &avframe;
1661                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1662
1663                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1664                             audio_size += data_size;
1665                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1666                             video_size += data_size;
1667                             ost->sync_opts++;
1668                         }
1669
1670                         opkt.stream_index= ost->index;
1671                         if(pkt->pts != AV_NOPTS_VALUE)
1672                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1673                         else
1674                             opkt.pts= AV_NOPTS_VALUE;
1675
1676                         if (pkt->dts == AV_NOPTS_VALUE)
1677                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1678                         else
1679                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1680                         opkt.dts -= ost_tb_start_time;
1681
1682                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1683                         opkt.flags= pkt->flags;
1684
1685                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1686                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1687                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1688                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1689                            ) {
1690                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1691                                 opkt.destruct= av_destruct_packet;
1692                         } else {
1693                             opkt.data = data_buf;
1694                             opkt.size = data_size;
1695                         }
1696
1697                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1698                         ost->st->codec->frame_number++;
1699                         ost->frame_number++;
1700                         av_free_packet(&opkt);
1701                     }
1702 #if CONFIG_AVFILTER
1703                     cont:
1704                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1705                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1706                     if(ost->picref)
1707                         avfilter_unref_buffer(ost->picref);
1708                 }
1709 #endif
1710                 }
1711             }
1712
1713         av_free(buffer_to_free);
1714         /* XXX: allocate the subtitles in the codec ? */
1715         if (subtitle_to_free) {
1716             avsubtitle_free(subtitle_to_free);
1717             subtitle_to_free = NULL;
1718         }
1719     }
1720  discard_packet:
1721     if (pkt == NULL) {
1722         /* EOF handling */
1723
1724         for(i=0;i<nb_ostreams;i++) {
1725             ost = ost_table[i];
1726             if (ost->source_index == ist_index) {
1727                 AVCodecContext *enc= ost->st->codec;
1728                 os = output_files[ost->file_index];
1729
1730                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1731                     continue;
1732                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1733                     continue;
1734
1735                 if (ost->encoding_needed) {
1736                     for(;;) {
1737                         AVPacket pkt;
1738                         int fifo_bytes;
1739                         av_init_packet(&pkt);
1740                         pkt.stream_index= ost->index;
1741
1742                         switch(ost->st->codec->codec_type) {
1743                         case AVMEDIA_TYPE_AUDIO:
1744                             fifo_bytes = av_fifo_size(ost->fifo);
1745                             ret = 0;
1746                             /* encode any samples remaining in fifo */
1747                             if (fifo_bytes > 0) {
1748                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1749                                 int fs_tmp = enc->frame_size;
1750
1751                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1752                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1753                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1754                                 } else { /* pad */
1755                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1756                                     if (allocated_audio_buf_size < frame_bytes)
1757                                         ffmpeg_exit(1);
1758                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1759                                 }
1760
1761                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1762                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1763                                                           ost->st->time_base.num, enc->sample_rate);
1764                                 enc->frame_size = fs_tmp;
1765                             }
1766                             if(ret <= 0) {
1767                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1768                             }
1769                             if (ret < 0) {
1770                                 fprintf(stderr, "Audio encoding failed\n");
1771                                 ffmpeg_exit(1);
1772                             }
1773                             audio_size += ret;
1774                             pkt.flags |= AV_PKT_FLAG_KEY;
1775                             break;
1776                         case AVMEDIA_TYPE_VIDEO:
1777                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1778                             if (ret < 0) {
1779                                 fprintf(stderr, "Video encoding failed\n");
1780                                 ffmpeg_exit(1);
1781                             }
1782                             video_size += ret;
1783                             if(enc->coded_frame && enc->coded_frame->key_frame)
1784                                 pkt.flags |= AV_PKT_FLAG_KEY;
1785                             if (ost->logfile && enc->stats_out) {
1786                                 fprintf(ost->logfile, "%s", enc->stats_out);
1787                             }
1788                             break;
1789                         default:
1790                             ret=-1;
1791                         }
1792
1793                         if(ret<=0)
1794                             break;
1795                         pkt.data= bit_buffer;
1796                         pkt.size= ret;
1797                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1798                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1799                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1800                     }
1801                 }
1802             }
1803         }
1804     }
1805
1806     return 0;
1807  fail_decode:
1808     return -1;
1809 }
1810
1811 static void print_sdp(AVFormatContext **avc, int n)
1812 {
1813     char sdp[2048];
1814
1815     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1816     printf("SDP:\n%s\n", sdp);
1817     fflush(stdout);
1818 }
1819
1820 static int copy_chapters(int infile, int outfile)
1821 {
1822     AVFormatContext *is = input_files[infile];
1823     AVFormatContext *os = output_files[outfile];
1824     int i;
1825
1826     for (i = 0; i < is->nb_chapters; i++) {
1827         AVChapter *in_ch = is->chapters[i], *out_ch;
1828         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1829                                       AV_TIME_BASE_Q, in_ch->time_base);
1830         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1831                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1832
1833
1834         if (in_ch->end < ts_off)
1835             continue;
1836         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1837             break;
1838
1839         out_ch = av_mallocz(sizeof(AVChapter));
1840         if (!out_ch)
1841             return AVERROR(ENOMEM);
1842
1843         out_ch->id        = in_ch->id;
1844         out_ch->time_base = in_ch->time_base;
1845         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1846         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1847
1848         if (metadata_chapters_autocopy)
1849             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1850
1851         os->nb_chapters++;
1852         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1853         if (!os->chapters)
1854             return AVERROR(ENOMEM);
1855         os->chapters[os->nb_chapters - 1] = out_ch;
1856     }
1857     return 0;
1858 }
1859
1860 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1861                                     AVCodecContext *avctx)
1862 {
1863     char *p;
1864     int n = 1, i;
1865     int64_t t;
1866
1867     for (p = kf; *p; p++)
1868         if (*p == ',')
1869             n++;
1870     ost->forced_kf_count = n;
1871     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1872     if (!ost->forced_kf_pts) {
1873         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1874         ffmpeg_exit(1);
1875     }
1876     for (i = 0; i < n; i++) {
1877         p = i ? strchr(p, ',') + 1 : kf;
1878         t = parse_time_or_die("force_key_frames", p, 1);
1879         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1880     }
1881 }
1882
1883 /*
1884  * The following code is the main loop of the file converter
1885  */
1886 static int transcode(AVFormatContext **output_files,
1887                      int nb_output_files,
1888                      AVFormatContext **input_files,
1889                      int nb_input_files,
1890                      AVStreamMap *stream_maps, int nb_stream_maps)
1891 {
1892     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1893     AVFormatContext *is, *os;
1894     AVCodecContext *codec, *icodec;
1895     AVOutputStream *ost, **ost_table = NULL;
1896     AVInputStream *ist, **ist_table = NULL;
1897     AVInputFile *file_table;
1898     char error[1024];
1899     int key;
1900     int want_sdp = 1;
1901     uint8_t no_packet[MAX_FILES]={0};
1902     int no_packet_count=0;
1903
1904     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1905     if (!file_table)
1906         goto fail;
1907
1908     /* input stream init */
1909     j = 0;
1910     for(i=0;i<nb_input_files;i++) {
1911         is = input_files[i];
1912         file_table[i].ist_index = j;
1913         file_table[i].nb_streams = is->nb_streams;
1914         j += is->nb_streams;
1915     }
1916     nb_istreams = j;
1917
1918     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1919     if (!ist_table)
1920         goto fail;
1921
1922     for(i=0;i<nb_istreams;i++) {
1923         ist = av_mallocz(sizeof(AVInputStream));
1924         if (!ist)
1925             goto fail;
1926         ist_table[i] = ist;
1927     }
1928     j = 0;
1929     for(i=0;i<nb_input_files;i++) {
1930         is = input_files[i];
1931         for(k=0;k<is->nb_streams;k++) {
1932             ist = ist_table[j++];
1933             ist->st = is->streams[k];
1934             ist->file_index = i;
1935             ist->index = k;
1936             ist->discard = 1; /* the stream is discarded by default
1937                                  (changed later) */
1938
1939             if (rate_emu) {
1940                 ist->start = av_gettime();
1941             }
1942         }
1943     }
1944
1945     /* output stream init */
1946     nb_ostreams = 0;
1947     for(i=0;i<nb_output_files;i++) {
1948         os = output_files[i];
1949         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1950             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1951             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1952             ret = AVERROR(EINVAL);
1953             goto fail;
1954         }
1955         nb_ostreams += os->nb_streams;
1956     }
1957     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1958         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1959         ret = AVERROR(EINVAL);
1960         goto fail;
1961     }
1962
1963     /* Sanity check the mapping args -- do the input files & streams exist? */
1964     for(i=0;i<nb_stream_maps;i++) {
1965         int fi = stream_maps[i].file_index;
1966         int si = stream_maps[i].stream_index;
1967
1968         if (fi < 0 || fi > nb_input_files - 1 ||
1969             si < 0 || si > file_table[fi].nb_streams - 1) {
1970             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1971             ret = AVERROR(EINVAL);
1972             goto fail;
1973         }
1974         fi = stream_maps[i].sync_file_index;
1975         si = stream_maps[i].sync_stream_index;
1976         if (fi < 0 || fi > nb_input_files - 1 ||
1977             si < 0 || si > file_table[fi].nb_streams - 1) {
1978             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1979             ret = AVERROR(EINVAL);
1980             goto fail;
1981         }
1982     }
1983
1984     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1985     if (!ost_table)
1986         goto fail;
1987     n = 0;
1988     for(k=0;k<nb_output_files;k++) {
1989         os = output_files[k];
1990         for(i=0;i<os->nb_streams;i++,n++) {
1991             int found;
1992             ost = ost_table[n] = output_streams_for_file[k][i];
1993             ost->st = os->streams[i];
1994             if (nb_stream_maps > 0) {
1995                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1996                     stream_maps[n].stream_index;
1997
1998                 /* Sanity check that the stream types match */
1999                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2000                     int i= ost->file_index;
2001                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2002                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2003                         stream_maps[n].file_index, stream_maps[n].stream_index,
2004                         ost->file_index, ost->index);
2005                     ffmpeg_exit(1);
2006                 }
2007
2008             } else {
2009                 int best_nb_frames=-1;
2010                 /* get corresponding input stream index : we select the first one with the right type */
2011                 found = 0;
2012                 for(j=0;j<nb_istreams;j++) {
2013                     int skip=0;
2014                     ist = ist_table[j];
2015                     if(opt_programid){
2016                         int pi,si;
2017                         AVFormatContext *f= input_files[ ist->file_index ];
2018                         skip=1;
2019                         for(pi=0; pi<f->nb_programs; pi++){
2020                             AVProgram *p= f->programs[pi];
2021                             if(p->id == opt_programid)
2022                                 for(si=0; si<p->nb_stream_indexes; si++){
2023                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2024                                         skip=0;
2025                                 }
2026                         }
2027                     }
2028                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2029                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2030                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2031                             best_nb_frames= ist->st->codec_info_nb_frames;
2032                             ost->source_index = j;
2033                             found = 1;
2034                         }
2035                     }
2036                 }
2037
2038                 if (!found) {
2039                     if(! opt_programid) {
2040                         /* try again and reuse existing stream */
2041                         for(j=0;j<nb_istreams;j++) {
2042                             ist = ist_table[j];
2043                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2044                                 && ist->st->discard != AVDISCARD_ALL) {
2045                                 ost->source_index = j;
2046                                 found = 1;
2047                             }
2048                         }
2049                     }
2050                     if (!found) {
2051                         int i= ost->file_index;
2052                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2053                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2054                                 ost->file_index, ost->index);
2055                         ffmpeg_exit(1);
2056                     }
2057                 }
2058             }
2059             ist = ist_table[ost->source_index];
2060             ist->discard = 0;
2061             ost->sync_ist = (nb_stream_maps > 0) ?
2062                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2063                          stream_maps[n].sync_stream_index] : ist;
2064         }
2065     }
2066
2067     /* for each output stream, we compute the right encoding parameters */
2068     for(i=0;i<nb_ostreams;i++) {
2069         ost = ost_table[i];
2070         os = output_files[ost->file_index];
2071         ist = ist_table[ost->source_index];
2072
2073         codec = ost->st->codec;
2074         icodec = ist->st->codec;
2075
2076         if (metadata_streams_autocopy)
2077             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2078                              AV_METADATA_DONT_OVERWRITE);
2079
2080         ost->st->disposition = ist->st->disposition;
2081         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2082         codec->chroma_sample_location = icodec->chroma_sample_location;
2083
2084         if (ost->st->stream_copy) {
2085             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2086
2087             if (extra_size > INT_MAX)
2088                 goto fail;
2089
2090             /* if stream_copy is selected, no need to decode or encode */
2091             codec->codec_id = icodec->codec_id;
2092             codec->codec_type = icodec->codec_type;
2093
2094             if(!codec->codec_tag){
2095                 if(   !os->oformat->codec_tag
2096                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2097                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2098                     codec->codec_tag = icodec->codec_tag;
2099             }
2100
2101             codec->bit_rate = icodec->bit_rate;
2102             codec->rc_max_rate    = icodec->rc_max_rate;
2103             codec->rc_buffer_size = icodec->rc_buffer_size;
2104             codec->extradata= av_mallocz(extra_size);
2105             if (!codec->extradata)
2106                 goto fail;
2107             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2108             codec->extradata_size= icodec->extradata_size;
2109             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){
2110                 codec->time_base = icodec->time_base;
2111                 codec->time_base.num *= icodec->ticks_per_frame;
2112                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2113                           codec->time_base.num, codec->time_base.den, INT_MAX);
2114             }else
2115                 codec->time_base = ist->st->time_base;
2116             switch(codec->codec_type) {
2117             case AVMEDIA_TYPE_AUDIO:
2118                 if(audio_volume != 256) {
2119                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2120                     ffmpeg_exit(1);
2121                 }
2122                 codec->channel_layout = icodec->channel_layout;
2123                 codec->sample_rate = icodec->sample_rate;
2124                 codec->channels = icodec->channels;
2125                 codec->frame_size = icodec->frame_size;
2126                 codec->block_align= icodec->block_align;
2127                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2128                     codec->block_align= 0;
2129                 if(codec->codec_id == CODEC_ID_AC3)
2130                     codec->block_align= 0;
2131                 break;
2132             case AVMEDIA_TYPE_VIDEO:
2133                 codec->pix_fmt = icodec->pix_fmt;
2134                 codec->width = icodec->width;
2135                 codec->height = icodec->height;
2136                 codec->has_b_frames = icodec->has_b_frames;
2137                 break;
2138             case AVMEDIA_TYPE_SUBTITLE:
2139                 codec->width = icodec->width;
2140                 codec->height = icodec->height;
2141                 break;
2142             default:
2143                 abort();
2144             }
2145         } else {
2146             switch(codec->codec_type) {
2147             case AVMEDIA_TYPE_AUDIO:
2148                 ost->fifo= av_fifo_alloc(1024);
2149                 if(!ost->fifo)
2150                     goto fail;
2151                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2152                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2153                 icodec->request_channels = codec->channels;
2154                 ist->decoding_needed = 1;
2155                 ost->encoding_needed = 1;
2156                 ost->resample_sample_fmt  = icodec->sample_fmt;
2157                 ost->resample_sample_rate = icodec->sample_rate;
2158                 ost->resample_channels    = icodec->channels;
2159                 break;
2160             case AVMEDIA_TYPE_VIDEO:
2161                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2162                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2163                     ffmpeg_exit(1);
2164                 }
2165                 ost->video_resample = (codec->width != icodec->width   ||
2166                                        codec->height != icodec->height ||
2167                         (codec->pix_fmt != icodec->pix_fmt));
2168                 if (ost->video_resample) {
2169 #if !CONFIG_AVFILTER
2170                     avcodec_get_frame_defaults(&ost->pict_tmp);
2171                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2172                                          codec->width, codec->height)) {
2173                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2174                         ffmpeg_exit(1);
2175                     }
2176                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2177                     ost->img_resample_ctx = sws_getContext(
2178                         icodec->width,
2179                         icodec->height,
2180                             icodec->pix_fmt,
2181                             codec->width,
2182                             codec->height,
2183                             codec->pix_fmt,
2184                             sws_flags, NULL, NULL, NULL);
2185                     if (ost->img_resample_ctx == NULL) {
2186                         fprintf(stderr, "Cannot get resampling context\n");
2187                         ffmpeg_exit(1);
2188                     }
2189
2190                     ost->original_height = icodec->height;
2191                     ost->original_width  = icodec->width;
2192 #endif
2193                     codec->bits_per_raw_sample= 0;
2194                 }
2195                 ost->resample_height = icodec->height;
2196                 ost->resample_width  = icodec->width;
2197                 ost->resample_pix_fmt= icodec->pix_fmt;
2198                 ost->encoding_needed = 1;
2199                 ist->decoding_needed = 1;
2200
2201 #if CONFIG_AVFILTER
2202                 if (configure_filters(ist, ost)) {
2203                     fprintf(stderr, "Error opening filters!\n");
2204                     exit(1);
2205                 }
2206 #endif
2207                 break;
2208             case AVMEDIA_TYPE_SUBTITLE:
2209                 ost->encoding_needed = 1;
2210                 ist->decoding_needed = 1;
2211                 break;
2212             default:
2213                 abort();
2214                 break;
2215             }
2216             /* two pass mode */
2217             if (ost->encoding_needed &&
2218                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2219                 char logfilename[1024];
2220                 FILE *f;
2221
2222                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2223                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2224                          i);
2225                 if (codec->flags & CODEC_FLAG_PASS1) {
2226                     f = fopen(logfilename, "wb");
2227                     if (!f) {
2228                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2229                         ffmpeg_exit(1);
2230                     }
2231                     ost->logfile = f;
2232                 } else {
2233                     char  *logbuffer;
2234                     size_t logbuffer_size;
2235                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2236                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2237                         ffmpeg_exit(1);
2238                     }
2239                     codec->stats_in = logbuffer;
2240                 }
2241             }
2242         }
2243         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2244             int size= codec->width * codec->height;
2245             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2246         }
2247     }
2248
2249     if (!bit_buffer)
2250         bit_buffer = av_malloc(bit_buffer_size);
2251     if (!bit_buffer) {
2252         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2253                 bit_buffer_size);
2254         ret = AVERROR(ENOMEM);
2255         goto fail;
2256     }
2257
2258     /* open each encoder */
2259     for(i=0;i<nb_ostreams;i++) {
2260         ost = ost_table[i];
2261         if (ost->encoding_needed) {
2262             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2263             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2264             if (!codec)
2265                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2266             if (!codec) {
2267                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2268                          ost->st->codec->codec_id, ost->file_index, ost->index);
2269                 ret = AVERROR(EINVAL);
2270                 goto dump_format;
2271             }
2272             if (dec->subtitle_header) {
2273                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2274                 if (!ost->st->codec->subtitle_header) {
2275                     ret = AVERROR(ENOMEM);
2276                     goto dump_format;
2277                 }
2278                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2279                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2280             }
2281             if (avcodec_open(ost->st->codec, codec) < 0) {
2282                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2283                         ost->file_index, ost->index);
2284                 ret = AVERROR(EINVAL);
2285                 goto dump_format;
2286             }
2287             extra_size += ost->st->codec->extradata_size;
2288         }
2289     }
2290
2291     /* open each decoder */
2292     for(i=0;i<nb_istreams;i++) {
2293         ist = ist_table[i];
2294         if (ist->decoding_needed) {
2295             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2296             if (!codec)
2297                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2298             if (!codec) {
2299                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2300                         ist->st->codec->codec_id, ist->file_index, ist->index);
2301                 ret = AVERROR(EINVAL);
2302                 goto dump_format;
2303             }
2304             if (avcodec_open(ist->st->codec, codec) < 0) {
2305                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2306                         ist->file_index, ist->index);
2307                 ret = AVERROR(EINVAL);
2308                 goto dump_format;
2309             }
2310             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2311             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2312         }
2313     }
2314
2315     /* init pts */
2316     for(i=0;i<nb_istreams;i++) {
2317         AVStream *st;
2318         ist = ist_table[i];
2319         st= ist->st;
2320         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2321         ist->next_pts = AV_NOPTS_VALUE;
2322         ist->is_start = 1;
2323     }
2324
2325     /* set meta data information from input file if required */
2326     for (i=0;i<nb_meta_data_maps;i++) {
2327         AVFormatContext *files[2];
2328         AVMetadata      **meta[2];
2329         int j;
2330
2331 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2332         if ((index) < 0 || (index) >= (nb_elems)) {\
2333             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2334                      (desc), (index));\
2335             ret = AVERROR(EINVAL);\
2336             goto dump_format;\
2337         }
2338
2339         int out_file_index = meta_data_maps[i][0].file;
2340         int in_file_index = meta_data_maps[i][1].file;
2341         if (in_file_index < 0 || out_file_index < 0)
2342             continue;
2343         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2344         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2345
2346         files[0] = output_files[out_file_index];
2347         files[1] = input_files[in_file_index];
2348
2349         for (j = 0; j < 2; j++) {
2350             AVMetaDataMap *map = &meta_data_maps[i][j];
2351
2352             switch (map->type) {
2353             case 'g':
2354                 meta[j] = &files[j]->metadata;
2355                 break;
2356             case 's':
2357                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2358                 meta[j] = &files[j]->streams[map->index]->metadata;
2359                 break;
2360             case 'c':
2361                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2362                 meta[j] = &files[j]->chapters[map->index]->metadata;
2363                 break;
2364             case 'p':
2365                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2366                 meta[j] = &files[j]->programs[map->index]->metadata;
2367                 break;
2368             }
2369         }
2370
2371         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2372     }
2373
2374     /* copy global metadata by default */
2375     if (metadata_global_autocopy) {
2376
2377         for (i = 0; i < nb_output_files; i++)
2378             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2379                              AV_METADATA_DONT_OVERWRITE);
2380     }
2381
2382     /* copy chapters according to chapter maps */
2383     for (i = 0; i < nb_chapter_maps; i++) {
2384         int infile  = chapter_maps[i].in_file;
2385         int outfile = chapter_maps[i].out_file;
2386
2387         if (infile < 0 || outfile < 0)
2388             continue;
2389         if (infile >= nb_input_files) {
2390             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2391             ret = AVERROR(EINVAL);
2392             goto dump_format;
2393         }
2394         if (outfile >= nb_output_files) {
2395             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2396             ret = AVERROR(EINVAL);
2397             goto dump_format;
2398         }
2399         copy_chapters(infile, outfile);
2400     }
2401
2402     /* copy chapters from the first input file that has them*/
2403     if (!nb_chapter_maps)
2404         for (i = 0; i < nb_input_files; i++) {
2405             if (!input_files[i]->nb_chapters)
2406                 continue;
2407
2408             for (j = 0; j < nb_output_files; j++)
2409                 if ((ret = copy_chapters(i, j)) < 0)
2410                     goto dump_format;
2411             break;
2412         }
2413
2414     /* open files and write file headers */
2415     for(i=0;i<nb_output_files;i++) {
2416         os = output_files[i];
2417         if (av_write_header(os) < 0) {
2418             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2419             ret = AVERROR(EINVAL);
2420             goto dump_format;
2421         }
2422         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2423             want_sdp = 0;
2424         }
2425     }
2426
2427  dump_format:
2428     /* dump the file output parameters - cannot be done before in case
2429        of stream copy */
2430     for(i=0;i<nb_output_files;i++) {
2431         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2432     }
2433
2434     /* dump the stream mapping */
2435     if (verbose >= 0) {
2436         fprintf(stderr, "Stream mapping:\n");
2437         for(i=0;i<nb_ostreams;i++) {
2438             ost = ost_table[i];
2439             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2440                     ist_table[ost->source_index]->file_index,
2441                     ist_table[ost->source_index]->index,
2442                     ost->file_index,
2443                     ost->index);
2444             if (ost->sync_ist != ist_table[ost->source_index])
2445                 fprintf(stderr, " [sync #%d.%d]",
2446                         ost->sync_ist->file_index,
2447                         ost->sync_ist->index);
2448             fprintf(stderr, "\n");
2449         }
2450     }
2451
2452     if (ret) {
2453         fprintf(stderr, "%s\n", error);
2454         goto fail;
2455     }
2456
2457     if (want_sdp) {
2458         print_sdp(output_files, nb_output_files);
2459     }
2460
2461     if (!using_stdin) {
2462         if(verbose >= 0)
2463 #if HAVE_KBHIT
2464             fprintf(stderr, "Press [q] to stop encoding\n");
2465 #else
2466             fprintf(stderr, "Press ctrl-c to stop encoding\n");
2467 #endif
2468         url_set_interrupt_cb(decode_interrupt_cb);
2469     }
2470     term_init();
2471
2472     timer_start = av_gettime();
2473
2474     for(; received_sigterm == 0;) {
2475         int file_index, ist_index;
2476         AVPacket pkt;
2477         double ipts_min;
2478         double opts_min;
2479
2480     redo:
2481         ipts_min= 1e100;
2482         opts_min= 1e100;
2483         /* if 'q' pressed, exits */
2484         if (!using_stdin) {
2485             if (q_pressed)
2486                 break;
2487             /* read_key() returns 0 on EOF */
2488             key = read_key();
2489             if (key == 'q')
2490                 break;
2491         }
2492
2493         /* select the stream that we must read now by looking at the
2494            smallest output pts */
2495         file_index = -1;
2496         for(i=0;i<nb_ostreams;i++) {
2497             double ipts, opts;
2498             ost = ost_table[i];
2499             os = output_files[ost->file_index];
2500             ist = ist_table[ost->source_index];
2501             if(ist->is_past_recording_time || no_packet[ist->file_index])
2502                 continue;
2503                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2504             ipts = (double)ist->pts;
2505             if (!file_table[ist->file_index].eof_reached){
2506                 if(ipts < ipts_min) {
2507                     ipts_min = ipts;
2508                     if(input_sync ) file_index = ist->file_index;
2509                 }
2510                 if(opts < opts_min) {
2511                     opts_min = opts;
2512                     if(!input_sync) file_index = ist->file_index;
2513                 }
2514             }
2515             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2516                 file_index= -1;
2517                 break;
2518             }
2519         }
2520         /* if none, if is finished */
2521         if (file_index < 0) {
2522             if(no_packet_count){
2523                 no_packet_count=0;
2524                 memset(no_packet, 0, sizeof(no_packet));
2525                 usleep(10000);
2526                 continue;
2527             }
2528             break;
2529         }
2530
2531         /* finish if limit size exhausted */
2532         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2533             break;
2534
2535         /* read a frame from it and output it in the fifo */
2536         is = input_files[file_index];
2537         ret= av_read_frame(is, &pkt);
2538         if(ret == AVERROR(EAGAIN)){
2539             no_packet[file_index]=1;
2540             no_packet_count++;
2541             continue;
2542         }
2543         if (ret < 0) {
2544             file_table[file_index].eof_reached = 1;
2545             if (opt_shortest)
2546                 break;
2547             else
2548                 continue;
2549         }
2550
2551         no_packet_count=0;
2552         memset(no_packet, 0, sizeof(no_packet));
2553
2554         if (do_pkt_dump) {
2555             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2556                              is->streams[pkt.stream_index]);
2557         }
2558         /* the following test is needed in case new streams appear
2559            dynamically in stream : we ignore them */
2560         if (pkt.stream_index >= file_table[file_index].nb_streams)
2561             goto discard_packet;
2562         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2563         ist = ist_table[ist_index];
2564         if (ist->discard)
2565             goto discard_packet;
2566
2567         if (pkt.dts != AV_NOPTS_VALUE)
2568             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2569         if (pkt.pts != AV_NOPTS_VALUE)
2570             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2571
2572         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2573             && input_files_ts_scale[file_index][pkt.stream_index]){
2574             if(pkt.pts != AV_NOPTS_VALUE)
2575                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2576             if(pkt.dts != AV_NOPTS_VALUE)
2577                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2578         }
2579
2580 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2581         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2582             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2583             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2584             int64_t delta= pkt_dts - ist->next_pts;
2585             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2586                 input_files_ts_offset[ist->file_index]-= delta;
2587                 if (verbose > 2)
2588                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2589                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2590                 if(pkt.pts != AV_NOPTS_VALUE)
2591                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2592             }
2593         }
2594
2595         /* finish if recording time exhausted */
2596         if (recording_time != INT64_MAX &&
2597             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2598             ist->is_past_recording_time = 1;
2599             goto discard_packet;
2600         }
2601
2602         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2603         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2604
2605             if (verbose >= 0)
2606                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2607                         ist->file_index, ist->index);
2608             if (exit_on_error)
2609                 ffmpeg_exit(1);
2610             av_free_packet(&pkt);
2611             goto redo;
2612         }
2613
2614     discard_packet:
2615         av_free_packet(&pkt);
2616
2617         /* dump report by using the output first video and audio streams */
2618         print_report(output_files, ost_table, nb_ostreams, 0);
2619     }
2620
2621     /* at the end of stream, we must flush the decoder buffers */
2622     for(i=0;i<nb_istreams;i++) {
2623         ist = ist_table[i];
2624         if (ist->decoding_needed) {
2625             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2626         }
2627     }
2628
2629     term_exit();
2630
2631     /* write the trailer if needed and close file */
2632     for(i=0;i<nb_output_files;i++) {
2633         os = output_files[i];
2634         av_write_trailer(os);
2635     }
2636
2637     /* dump report by using the first video and audio streams */
2638     print_report(output_files, ost_table, nb_ostreams, 1);
2639
2640     /* close each encoder */
2641     for(i=0;i<nb_ostreams;i++) {
2642         ost = ost_table[i];
2643         if (ost->encoding_needed) {
2644             av_freep(&ost->st->codec->stats_in);
2645             avcodec_close(ost->st->codec);
2646         }
2647 #if CONFIG_AVFILTER
2648         avfilter_graph_free(&ost->graph);
2649 #endif
2650     }
2651
2652     /* close each decoder */
2653     for(i=0;i<nb_istreams;i++) {
2654         ist = ist_table[i];
2655         if (ist->decoding_needed) {
2656             avcodec_close(ist->st->codec);
2657         }
2658     }
2659
2660     /* finished ! */
2661     ret = 0;
2662
2663  fail:
2664     av_freep(&bit_buffer);
2665     av_free(file_table);
2666
2667     if (ist_table) {
2668         for(i=0;i<nb_istreams;i++) {
2669             ist = ist_table[i];
2670             av_free(ist);
2671         }
2672         av_free(ist_table);
2673     }
2674     if (ost_table) {
2675         for(i=0;i<nb_ostreams;i++) {
2676             ost = ost_table[i];
2677             if (ost) {
2678                 if (ost->st->stream_copy)
2679                     av_freep(&ost->st->codec->extradata);
2680                 if (ost->logfile) {
2681                     fclose(ost->logfile);
2682                     ost->logfile = NULL;
2683                 }
2684                 av_fifo_free(ost->fifo); /* works even if fifo is not
2685                                              initialized but set to zero */
2686                 av_freep(&ost->st->codec->subtitle_header);
2687                 av_free(ost->pict_tmp.data[0]);
2688                 av_free(ost->forced_kf_pts);
2689                 if (ost->video_resample)
2690                     sws_freeContext(ost->img_resample_ctx);
2691                 if (ost->resample)
2692                     audio_resample_close(ost->resample);
2693                 if (ost->reformat_ctx)
2694                     av_audio_convert_free(ost->reformat_ctx);
2695                 av_free(ost);
2696             }
2697         }
2698         av_free(ost_table);
2699     }
2700     return ret;
2701 }
2702
2703 static void opt_format(const char *arg)
2704 {
2705     last_asked_format = arg;
2706 }
2707
2708 static void opt_video_rc_override_string(const char *arg)
2709 {
2710     video_rc_override_string = arg;
2711 }
2712
2713 static int opt_me_threshold(const char *opt, const char *arg)
2714 {
2715     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2716     return 0;
2717 }
2718
2719 static int opt_verbose(const char *opt, const char *arg)
2720 {
2721     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2722     return 0;
2723 }
2724
2725 static int opt_frame_rate(const char *opt, const char *arg)
2726 {
2727     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2728         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2729         ffmpeg_exit(1);
2730     }
2731     return 0;
2732 }
2733
2734 static int opt_bitrate(const char *opt, const char *arg)
2735 {
2736     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2737
2738     opt_default(opt, arg);
2739
2740     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2741         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2742
2743     return 0;
2744 }
2745
2746 static int opt_frame_crop(const char *opt, const char *arg)
2747 {
2748     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2749     return AVERROR(EINVAL);
2750 }
2751
2752 static void opt_frame_size(const char *arg)
2753 {
2754     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2755         fprintf(stderr, "Incorrect frame size\n");
2756         ffmpeg_exit(1);
2757     }
2758 }
2759
2760 static int opt_pad(const char *opt, const char *arg) {
2761     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2762     return -1;
2763 }
2764
2765 static void opt_frame_pix_fmt(const char *arg)
2766 {
2767     if (strcmp(arg, "list")) {
2768         frame_pix_fmt = av_get_pix_fmt(arg);
2769         if (frame_pix_fmt == PIX_FMT_NONE) {
2770             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2771             ffmpeg_exit(1);
2772         }
2773     } else {
2774         show_pix_fmts();
2775         ffmpeg_exit(0);
2776     }
2777 }
2778
2779 static void opt_frame_aspect_ratio(const char *arg)
2780 {
2781     int x = 0, y = 0;
2782     double ar = 0;
2783     const char *p;
2784     char *end;
2785
2786     p = strchr(arg, ':');
2787     if (p) {
2788         x = strtol(arg, &end, 10);
2789         if (end == p)
2790             y = strtol(end+1, &end, 10);
2791         if (x > 0 && y > 0)
2792             ar = (double)x / (double)y;
2793     } else
2794         ar = strtod(arg, NULL);
2795
2796     if (!ar) {
2797         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2798         ffmpeg_exit(1);
2799     }
2800     frame_aspect_ratio = ar;
2801 }
2802
2803 static int opt_metadata(const char *opt, const char *arg)
2804 {
2805     char *mid= strchr(arg, '=');
2806
2807     if(!mid){
2808         fprintf(stderr, "Missing =\n");
2809         ffmpeg_exit(1);
2810     }
2811     *mid++= 0;
2812
2813     av_metadata_set2(&metadata, arg, mid, 0);
2814
2815     return 0;
2816 }
2817
2818 static void opt_qscale(const char *arg)
2819 {
2820     video_qscale = atof(arg);
2821     if (video_qscale <= 0 ||
2822         video_qscale > 255) {
2823         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2824         ffmpeg_exit(1);
2825     }
2826 }
2827
2828 static void opt_top_field_first(const char *arg)
2829 {
2830     top_field_first= atoi(arg);
2831 }
2832
2833 static int opt_thread_count(const char *opt, const char *arg)
2834 {
2835     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2836 #if !HAVE_THREADS
2837     if (verbose >= 0)
2838         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2839 #endif
2840     return 0;
2841 }
2842
2843 static void opt_audio_sample_fmt(const char *arg)
2844 {
2845     if (strcmp(arg, "list")) {
2846         audio_sample_fmt = av_get_sample_fmt(arg);
2847         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2848             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2849             ffmpeg_exit(1);
2850         }
2851     } else {
2852         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2853         ffmpeg_exit(0);
2854     }
2855 }
2856
2857 static int opt_audio_rate(const char *opt, const char *arg)
2858 {
2859     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2860     return 0;
2861 }
2862
2863 static int opt_audio_channels(const char *opt, const char *arg)
2864 {
2865     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2866     return 0;
2867 }
2868
2869 static void opt_video_channel(const char *arg)
2870 {
2871     video_channel = strtol(arg, NULL, 0);
2872 }
2873
2874 static void opt_video_standard(const char *arg)
2875 {
2876     video_standard = av_strdup(arg);
2877 }
2878
2879 static void opt_codec(int *pstream_copy, char **pcodec_name,
2880                       int codec_type, const char *arg)
2881 {
2882     av_freep(pcodec_name);
2883     if (!strcmp(arg, "copy")) {
2884         *pstream_copy = 1;
2885     } else {
2886         *pcodec_name = av_strdup(arg);
2887     }
2888 }
2889
2890 static void opt_audio_codec(const char *arg)
2891 {
2892     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2893 }
2894
2895 static void opt_video_codec(const char *arg)
2896 {
2897     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2898 }
2899
2900 static void opt_subtitle_codec(const char *arg)
2901 {
2902     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2903 }
2904
2905 static int opt_codec_tag(const char *opt, const char *arg)
2906 {
2907     char *tail;
2908     uint32_t *codec_tag;
2909
2910     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2911                 !strcmp(opt, "vtag") ? &video_codec_tag :
2912                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2913     if (!codec_tag)
2914         return -1;
2915
2916     *codec_tag = strtol(arg, &tail, 0);
2917     if (!tail || *tail)
2918         *codec_tag = AV_RL32(arg);
2919
2920     return 0;
2921 }
2922
2923 static void opt_map(const char *arg)
2924 {
2925     AVStreamMap *m;
2926     char *p;
2927
2928     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2929     m = &stream_maps[nb_stream_maps-1];
2930
2931     m->file_index = strtol(arg, &p, 0);
2932     if (*p)
2933         p++;
2934
2935     m->stream_index = strtol(p, &p, 0);
2936     if (*p) {
2937         p++;
2938         m->sync_file_index = strtol(p, &p, 0);
2939         if (*p)
2940             p++;
2941         m->sync_stream_index = strtol(p, &p, 0);
2942     } else {
2943         m->sync_file_index = m->file_index;
2944         m->sync_stream_index = m->stream_index;
2945     }
2946 }
2947
2948 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2949 {
2950     *endptr = arg;
2951     if (*arg == ',') {
2952         *type = *(++arg);
2953         switch (*arg) {
2954         case 'g':
2955             break;
2956         case 's':
2957         case 'c':
2958         case 'p':
2959             *index = strtol(++arg, endptr, 0);
2960             break;
2961         default:
2962             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2963             ffmpeg_exit(1);
2964         }
2965     } else
2966         *type = 'g';
2967 }
2968
2969 static void opt_map_metadata(const char *arg)
2970 {
2971     AVMetaDataMap *m, *m1;
2972     char *p;
2973
2974     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2975                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2976
2977     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2978     m->file = strtol(arg, &p, 0);
2979     parse_meta_type(p, &m->type, &m->index, &p);
2980     if (*p)
2981         p++;
2982
2983     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
2984     m1->file = strtol(p, &p, 0);
2985     parse_meta_type(p, &m1->type, &m1->index, &p);
2986
2987     if (m->type == 'g' || m1->type == 'g')
2988         metadata_global_autocopy = 0;
2989     if (m->type == 's' || m1->type == 's')
2990         metadata_streams_autocopy = 0;
2991     if (m->type == 'c' || m1->type == 'c')
2992         metadata_chapters_autocopy = 0;
2993 }
2994
2995 static void opt_map_meta_data(const char *arg)
2996 {
2997     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
2998                     "Use -map_metadata instead.\n");
2999     opt_map_metadata(arg);
3000 }
3001
3002 static void opt_map_chapters(const char *arg)
3003 {
3004     AVChapterMap *c;
3005     char *p;
3006
3007     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3008                               nb_chapter_maps + 1);
3009     c = &chapter_maps[nb_chapter_maps - 1];
3010     c->out_file = strtol(arg, &p, 0);
3011     if (*p)
3012         p++;
3013
3014     c->in_file = strtol(p, &p, 0);
3015 }
3016
3017 static void opt_input_ts_scale(const char *arg)
3018 {
3019     unsigned int stream;
3020     double scale;
3021     char *p;
3022
3023     stream = strtol(arg, &p, 0);
3024     if (*p)
3025         p++;
3026     scale= strtod(p, &p);
3027
3028     if(stream >= MAX_STREAMS)
3029         ffmpeg_exit(1);
3030
3031     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3032     input_files_ts_scale[nb_input_files][stream]= scale;
3033 }
3034
3035 static int opt_recording_time(const char *opt, const char *arg)
3036 {
3037     recording_time = parse_time_or_die(opt, arg, 1);
3038     return 0;
3039 }
3040
3041 static int opt_start_time(const char *opt, const char *arg)
3042 {
3043     start_time = parse_time_or_die(opt, arg, 1);
3044     return 0;
3045 }
3046
3047 static int opt_recording_timestamp(const char *opt, const char *arg)
3048 {
3049     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3050     return 0;
3051 }
3052
3053 static int opt_input_ts_offset(const char *opt, const char *arg)
3054 {
3055     input_ts_offset = parse_time_or_die(opt, arg, 1);
3056     return 0;
3057 }
3058
3059 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3060 {
3061     const char *codec_string = encoder ? "encoder" : "decoder";
3062     AVCodec *codec;
3063
3064     if(!name)
3065         return CODEC_ID_NONE;
3066     codec = encoder ?
3067         avcodec_find_encoder_by_name(name) :
3068         avcodec_find_decoder_by_name(name);
3069     if(!codec) {
3070         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3071         ffmpeg_exit(1);
3072     }
3073     if(codec->type != type) {
3074         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3075         ffmpeg_exit(1);
3076     }
3077     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3078        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3079         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3080                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3081                 codec_string, codec->name);
3082         codec = encoder ?
3083             avcodec_find_encoder(codec->id) :
3084             avcodec_find_decoder(codec->id);
3085         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3086             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3087                     codec_string, codec->name);
3088         ffmpeg_exit(1);
3089     }
3090     return codec->id;
3091 }
3092
3093 static void opt_input_file(const char *filename)
3094 {
3095     AVFormatContext *ic;
3096     AVFormatParameters params, *ap = &params;
3097     AVInputFormat *file_iformat = NULL;
3098     int err, i, ret, rfps, rfps_base;
3099     int64_t timestamp;
3100
3101     if (last_asked_format) {
3102         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3103             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3104             ffmpeg_exit(1);
3105         }
3106         last_asked_format = NULL;
3107     }
3108
3109     if (!strcmp(filename, "-"))
3110         filename = "pipe:";
3111
3112     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3113                     !strcmp(filename, "/dev/stdin");
3114
3115     /* get default parameters from command line */
3116     ic = avformat_alloc_context();
3117     if (!ic) {
3118         print_error(filename, AVERROR(ENOMEM));
3119         ffmpeg_exit(1);
3120     }
3121
3122     memset(ap, 0, sizeof(*ap));
3123     ap->prealloced_context = 1;
3124     ap->sample_rate = audio_sample_rate;
3125     ap->channels = audio_channels;
3126     ap->time_base.den = frame_rate.num;
3127     ap->time_base.num = frame_rate.den;
3128     ap->width = frame_width;
3129     ap->height = frame_height;
3130     ap->pix_fmt = frame_pix_fmt;
3131    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3132     ap->channel = video_channel;
3133     ap->standard = video_standard;
3134
3135     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3136
3137     ic->video_codec_id   =
3138         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3139                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3140     ic->audio_codec_id   =
3141         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3142                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3143     ic->subtitle_codec_id=
3144         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3145                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3146     ic->flags |= AVFMT_FLAG_NONBLOCK;
3147
3148     /* open the input file with generic libav function */
3149     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3150     if (err < 0) {
3151         print_error(filename, err);
3152         ffmpeg_exit(1);
3153     }
3154     if(opt_programid) {
3155         int i, j;
3156         int found=0;
3157         for(i=0; i<ic->nb_streams; i++){
3158             ic->streams[i]->discard= AVDISCARD_ALL;
3159         }
3160         for(i=0; i<ic->nb_programs; i++){
3161             AVProgram *p= ic->programs[i];
3162             if(p->id != opt_programid){
3163                 p->discard = AVDISCARD_ALL;
3164             }else{
3165                 found=1;
3166                 for(j=0; j<p->nb_stream_indexes; j++){
3167                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3168                 }
3169             }
3170         }
3171         if(!found){
3172             fprintf(stderr, "Specified program id not found\n");
3173             ffmpeg_exit(1);
3174         }
3175         opt_programid=0;
3176     }
3177
3178     ic->loop_input = loop_input;
3179
3180     /* If not enough info to get the stream parameters, we decode the
3181        first frames to get it. (used in mpeg case for example) */
3182     ret = av_find_stream_info(ic);
3183     if (ret < 0 && verbose >= 0) {
3184         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3185         av_close_input_file(ic);
3186         ffmpeg_exit(1);
3187     }
3188
3189     timestamp = start_time;
3190     /* add the stream start time */
3191     if (ic->start_time != AV_NOPTS_VALUE)
3192         timestamp += ic->start_time;
3193
3194     /* if seeking requested, we execute it */
3195     if (start_time != 0) {
3196         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3197         if (ret < 0) {
3198             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3199                     filename, (double)timestamp / AV_TIME_BASE);
3200         }
3201         /* reset seek info */
3202         start_time = 0;
3203     }
3204
3205     /* update the current parameters so that they match the one of the input stream */
3206     for(i=0;i<ic->nb_streams;i++) {
3207         AVStream *st = ic->streams[i];
3208         AVCodecContext *dec = st->codec;
3209         dec->thread_count = thread_count;
3210         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3211         switch (dec->codec_type) {
3212         case AVMEDIA_TYPE_AUDIO:
3213             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3214             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3215             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3216             channel_layout    = dec->channel_layout;
3217             audio_channels    = dec->channels;
3218             audio_sample_rate = dec->sample_rate;
3219             audio_sample_fmt  = dec->sample_fmt;
3220             if(audio_disable)
3221                 st->discard= AVDISCARD_ALL;
3222             /* Note that av_find_stream_info can add more streams, and we
3223              * currently have no chance of setting up lowres decoding
3224              * early enough for them. */
3225             if (dec->lowres)
3226                 audio_sample_rate >>= dec->lowres;
3227             break;
3228         case AVMEDIA_TYPE_VIDEO:
3229             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3230             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3231             frame_height = dec->height;
3232             frame_width  = dec->width;
3233             if(ic->streams[i]->sample_aspect_ratio.num)
3234                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3235             else
3236                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3237             frame_aspect_ratio *= (float) dec->width / dec->height;
3238             frame_pix_fmt = dec->pix_fmt;
3239             rfps      = ic->streams[i]->r_frame_rate.num;
3240             rfps_base = ic->streams[i]->r_frame_rate.den;
3241             if (dec->lowres) {
3242                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3243                 frame_height >>= dec->lowres;
3244                 frame_width  >>= dec->lowres;
3245                 dec->height = frame_height;
3246                 dec->width  = frame_width;
3247             }
3248             if(me_threshold)
3249                 dec->debug |= FF_DEBUG_MV;
3250
3251             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3252
3253                 if (verbose >= 0)
3254                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3255                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3256
3257                     (float)rfps / rfps_base, rfps, rfps_base);
3258             }
3259             /* update the current frame rate to match the stream frame rate */
3260             frame_rate.num = rfps;
3261             frame_rate.den = rfps_base;
3262
3263             if(video_disable)
3264                 st->discard= AVDISCARD_ALL;
3265             else if(video_discard)
3266                 st->discard= video_discard;
3267             break;
3268         case AVMEDIA_TYPE_DATA:
3269             break;
3270         case AVMEDIA_TYPE_SUBTITLE:
3271             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3272             if(subtitle_disable)
3273                 st->discard = AVDISCARD_ALL;
3274             break;
3275         case AVMEDIA_TYPE_ATTACHMENT:
3276         case AVMEDIA_TYPE_UNKNOWN:
3277             break;
3278         default:
3279             abort();
3280         }
3281     }
3282
3283     input_files[nb_input_files] = ic;
3284     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3285     /* dump the file content */
3286     if (verbose >= 0)
3287         av_dump_format(ic, nb_input_files, filename, 0);
3288
3289     nb_input_files++;
3290
3291     video_channel = 0;
3292
3293     av_freep(&video_codec_name);
3294     av_freep(&audio_codec_name);
3295     av_freep(&subtitle_codec_name);
3296 }
3297
3298 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3299                                          int *has_subtitle_ptr)
3300 {
3301     int has_video, has_audio, has_subtitle, i, j;
3302     AVFormatContext *ic;
3303
3304     has_video = 0;
3305     has_audio = 0;
3306     has_subtitle = 0;
3307     for(j=0;j<nb_input_files;j++) {
3308         ic = input_files[j];
3309         for(i=0;i<ic->nb_streams;i++) {
3310             AVCodecContext *enc = ic->streams[i]->codec;
3311             switch(enc->codec_type) {
3312             case AVMEDIA_TYPE_AUDIO:
3313                 has_audio = 1;
3314                 break;
3315             case AVMEDIA_TYPE_VIDEO:
3316                 has_video = 1;
3317                 break;
3318             case AVMEDIA_TYPE_SUBTITLE:
3319                 has_subtitle = 1;
3320                 break;
3321             case AVMEDIA_TYPE_DATA:
3322             case AVMEDIA_TYPE_ATTACHMENT:
3323             case AVMEDIA_TYPE_UNKNOWN:
3324                 break;
3325             default:
3326                 abort();
3327             }
3328         }
3329     }
3330     *has_video_ptr = has_video;
3331     *has_audio_ptr = has_audio;
3332     *has_subtitle_ptr = has_subtitle;
3333 }
3334
3335 static void new_video_stream(AVFormatContext *oc, int file_idx)
3336 {
3337     AVStream *st;
3338     AVOutputStream *ost;
3339     AVCodecContext *video_enc;
3340     enum CodecID codec_id = CODEC_ID_NONE;
3341     AVCodec *codec= NULL;
3342     int i;
3343
3344     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3345     if (!st) {
3346         fprintf(stderr, "Could not alloc stream\n");
3347         ffmpeg_exit(1);
3348     }
3349     ost = new_output_stream(oc, file_idx);
3350
3351     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3352     if(!video_stream_copy){
3353         if (video_codec_name) {
3354             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3355                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3356             codec = avcodec_find_encoder_by_name(video_codec_name);
3357             output_codecs[nb_output_codecs-1] = codec;
3358         } else {
3359             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3360             codec = avcodec_find_encoder(codec_id);
3361         }
3362 #if CONFIG_AVFILTER
3363         if(frame_aspect_ratio > 0){
3364             i = vfilters ? strlen(vfilters) : 0;
3365             vfilters = av_realloc(vfilters, i+100);
3366             snprintf(vfilters+i, i+100, "%csetdar=%f\n", i?',':' ', frame_aspect_ratio);
3367             frame_aspect_ratio=0;
3368         }
3369
3370         ost->avfilter= vfilters;
3371         vfilters= NULL;
3372 #endif
3373     }
3374
3375     avcodec_get_context_defaults3(st->codec, codec);
3376     ost->bitstream_filters = video_bitstream_filters;
3377     video_bitstream_filters= NULL;
3378
3379     st->codec->thread_count= thread_count;
3380
3381     video_enc = st->codec;
3382
3383     if(video_codec_tag)
3384         video_enc->codec_tag= video_codec_tag;
3385
3386     if(   (video_global_header&1)
3387        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3388         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3389         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3390     }
3391     if(video_global_header&2){
3392         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3393         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3394     }
3395
3396     if (video_stream_copy) {
3397         st->stream_copy = 1;
3398         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3399         video_enc->sample_aspect_ratio =
3400         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3401     } else {
3402         const char *p;
3403         int i;
3404         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3405
3406         video_enc->codec_id = codec_id;
3407         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3408
3409         if (codec && codec->supported_framerates && !force_fps)
3410             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3411         video_enc->time_base.den = fps.num;
3412         video_enc->time_base.num = fps.den;
3413
3414         video_enc->width = frame_width;
3415         video_enc->height = frame_height;
3416         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3417         video_enc->pix_fmt = frame_pix_fmt;
3418         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3419
3420         choose_pixel_fmt(st, codec);
3421
3422         if (intra_only)
3423             video_enc->gop_size = 0;
3424         if (video_qscale || same_quality) {
3425             video_enc->flags |= CODEC_FLAG_QSCALE;
3426             video_enc->global_quality=
3427                 st->quality = FF_QP2LAMBDA * video_qscale;
3428         }
3429
3430         if(intra_matrix)
3431             video_enc->intra_matrix = intra_matrix;
3432         if(inter_matrix)
3433             video_enc->inter_matrix = inter_matrix;
3434
3435         p= video_rc_override_string;
3436         for(i=0; p; i++){
3437             int start, end, q;
3438             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3439             if(e!=3){
3440                 fprintf(stderr, "error parsing rc_override\n");
3441                 ffmpeg_exit(1);
3442             }
3443             video_enc->rc_override=
3444                 av_realloc(video_enc->rc_override,
3445                            sizeof(RcOverride)*(i+1));
3446             video_enc->rc_override[i].start_frame= start;
3447             video_enc->rc_override[i].end_frame  = end;
3448             if(q>0){
3449                 video_enc->rc_override[i].qscale= q;
3450                 video_enc->rc_override[i].quality_factor= 1.0;
3451             }
3452             else{
3453                 video_enc->rc_override[i].qscale= 0;
3454                 video_enc->rc_override[i].quality_factor= -q/100.0;
3455             }
3456             p= strchr(p, '/');
3457             if(p) p++;
3458         }
3459         video_enc->rc_override_count=i;
3460         if (!video_enc->rc_initial_buffer_occupancy)
3461             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3462         video_enc->me_threshold= me_threshold;
3463         video_enc->intra_dc_precision= intra_dc_precision - 8;
3464
3465         if (do_psnr)
3466             video_enc->flags|= CODEC_FLAG_PSNR;
3467
3468         /* two pass mode */
3469         if (do_pass) {
3470             if (do_pass == 1) {
3471                 video_enc->flags |= CODEC_FLAG_PASS1;
3472             } else {
3473                 video_enc->flags |= CODEC_FLAG_PASS2;
3474             }
3475         }
3476
3477         if (forced_key_frames)
3478             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3479     }
3480     if (video_language) {
3481         av_metadata_set2(&st->metadata, "language", video_language, 0);
3482         av_freep(&video_language);
3483     }
3484
3485     /* reset some key parameters */
3486     video_disable = 0;
3487     av_freep(&video_codec_name);
3488     av_freep(&forced_key_frames);
3489     video_stream_copy = 0;
3490     frame_pix_fmt = PIX_FMT_NONE;
3491 }
3492
3493 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3494 {
3495     AVStream *st;
3496     AVOutputStream *ost;
3497     AVCodec *codec= NULL;
3498     AVCodecContext *audio_enc;
3499     enum CodecID codec_id = CODEC_ID_NONE;
3500
3501     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3502     if (!st) {
3503         fprintf(stderr, "Could not alloc stream\n");
3504         ffmpeg_exit(1);
3505     }
3506     ost = new_output_stream(oc, file_idx);
3507
3508     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3509     if(!audio_stream_copy){
3510         if (audio_codec_name) {
3511             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3512                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3513             codec = avcodec_find_encoder_by_name(audio_codec_name);
3514             output_codecs[nb_output_codecs-1] = codec;
3515         } else {
3516             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3517             codec = avcodec_find_encoder(codec_id);
3518         }
3519     }
3520
3521     avcodec_get_context_defaults3(st->codec, codec);
3522
3523     ost->bitstream_filters = audio_bitstream_filters;
3524     audio_bitstream_filters= NULL;
3525
3526     st->codec->thread_count= thread_count;
3527
3528     audio_enc = st->codec;
3529     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3530
3531     if(audio_codec_tag)
3532         audio_enc->codec_tag= audio_codec_tag;
3533
3534     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3535         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3536         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3537     }
3538     if (audio_stream_copy) {
3539         st->stream_copy = 1;
3540         audio_enc->channels = audio_channels;
3541         audio_enc->sample_rate = audio_sample_rate;
3542     } else {
3543         audio_enc->codec_id = codec_id;
3544         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3545
3546         if (audio_qscale > QSCALE_NONE) {
3547             audio_enc->flags |= CODEC_FLAG_QSCALE;
3548             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3549         }
3550         audio_enc->channels = audio_channels;
3551         audio_enc->sample_fmt = audio_sample_fmt;
3552         audio_enc->sample_rate = audio_sample_rate;
3553         audio_enc->channel_layout = channel_layout;
3554         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3555             audio_enc->channel_layout = 0;
3556         choose_sample_fmt(st, codec);
3557         choose_sample_rate(st, codec);
3558     }
3559     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3560     if (audio_language) {
3561         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3562         av_freep(&audio_language);
3563     }
3564
3565     /* reset some key parameters */
3566     audio_disable = 0;
3567     av_freep(&audio_codec_name);
3568     audio_stream_copy = 0;
3569 }
3570
3571 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3572 {
3573     AVStream *st;
3574     AVOutputStream *ost;
3575     AVCodec *codec=NULL;
3576     AVCodecContext *subtitle_enc;
3577     enum CodecID codec_id = CODEC_ID_NONE;
3578
3579     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3580     if (!st) {
3581         fprintf(stderr, "Could not alloc stream\n");
3582         ffmpeg_exit(1);
3583     }
3584     ost = new_output_stream(oc, file_idx);
3585     subtitle_enc = st->codec;
3586     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3587     if(!subtitle_stream_copy){
3588         if (subtitle_codec_name) {
3589             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3590                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3591             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3592         } else {
3593             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3594             codec = avcodec_find_encoder(codec_id);
3595         }
3596     }
3597     avcodec_get_context_defaults3(st->codec, codec);
3598
3599     ost->bitstream_filters = subtitle_bitstream_filters;
3600     subtitle_bitstream_filters= NULL;
3601
3602     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3603
3604     if(subtitle_codec_tag)
3605         subtitle_enc->codec_tag= subtitle_codec_tag;
3606
3607     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3608         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3609         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3610     }
3611     if (subtitle_stream_copy) {
3612         st->stream_copy = 1;
3613     } else {
3614         subtitle_enc->codec_id = codec_id;
3615         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3616     }
3617
3618     if (subtitle_language) {
3619         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3620         av_freep(&subtitle_language);
3621     }
3622
3623     subtitle_disable = 0;
3624     av_freep(&subtitle_codec_name);
3625     subtitle_stream_copy = 0;
3626 }
3627
3628 static int opt_new_stream(const char *opt, const char *arg)
3629 {
3630     AVFormatContext *oc;
3631     int file_idx = nb_output_files - 1;
3632     if (nb_output_files <= 0) {
3633         fprintf(stderr, "At least one output file must be specified\n");
3634         ffmpeg_exit(1);
3635     }
3636     oc = output_files[file_idx];
3637
3638     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3639     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3640     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3641     else av_assert0(0);
3642     return 0;
3643 }
3644
3645 /* arg format is "output-stream-index:streamid-value". */
3646 static int opt_streamid(const char *opt, const char *arg)
3647 {
3648     int idx;
3649     char *p;
3650     char idx_str[16];
3651
3652     strncpy(idx_str, arg, sizeof(idx_str));
3653     idx_str[sizeof(idx_str)-1] = '\0';
3654     p = strchr(idx_str, ':');
3655     if (!p) {
3656         fprintf(stderr,
3657                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3658                 arg, opt);
3659         ffmpeg_exit(1);
3660     }
3661     *p++ = '\0';
3662     idx = parse_