dfd9f9ada0f0dba590938359434ce8a724e3a536
[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 "libavcore/audioconvert.h"
40 #include "libavcore/parseutils.h"
41 #include "libavcore/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_TERMIOS_H
73 #include <fcntl.h>
74 #include <sys/ioctl.h>
75 #include <sys/time.h>
76 #include <termios.h>
77 #elif HAVE_CONIO_H
78 #include <conio.h>
79 #endif
80 #include <time.h>
81
82 #include "cmdutils.h"
83
84 #include "libavutil/avassert.h"
85
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
88
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
91     int file_index;
92     int stream_index;
93     int sync_file_index;
94     int sync_stream_index;
95 } AVStreamMap;
96
97 /**
98  * select an input file for an output file
99  */
100 typedef struct AVMetaDataMap {
101     int  file;      //< file index
102     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103     int  index;     //< stream/chapter/program number
104 } AVMetaDataMap;
105
106 typedef struct AVChapterMap {
107     int in_file;
108     int out_file;
109 } AVChapterMap;
110
111 static const OptionDef options[];
112
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
116 #endif
117
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
126
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
131
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
134
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy   = 1;
139 static int metadata_streams_autocopy  = 1;
140 static int metadata_chapters_autocopy = 1;
141
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
144
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
148
149 static int frame_width  = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
173 #if CONFIG_AVFILTER
174 static char *vfilters = NULL;
175 static AVFilterGraph *graph = NULL;
176 #endif
177
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char  *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
188
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
193
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
196
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static unsigned int sws_flags = SWS_BICUBIC;
249
250 static int64_t timer_start;
251
252 static uint8_t *audio_buf;
253 static uint8_t *audio_out;
254 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
255
256 static short *samples;
257
258 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
261
262 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
263
264 struct AVInputStream;
265
266 typedef struct AVOutputStream {
267     int file_index;          /* file index */
268     int index;               /* stream index in the output file */
269     int source_index;        /* AVInputStream index */
270     AVStream *st;            /* stream in the output file */
271     int encoding_needed;     /* true if encoding needed for this stream */
272     int frame_number;
273     /* input pts and corresponding output pts
274        for A/V sync */
275     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
276     struct AVInputStream *sync_ist; /* input stream to sync against */
277     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
278     AVBitStreamFilterContext *bitstream_filters;
279     /* video only */
280     int video_resample;
281     AVFrame pict_tmp;      /* temporary image for resampling */
282     struct SwsContext *img_resample_ctx; /* for image resampling */
283     int resample_height;
284     int resample_width;
285     int resample_pix_fmt;
286
287     /* full frame size of first frame */
288     int original_height;
289     int original_width;
290
291     /* forced key frames */
292     int64_t *forced_kf_pts;
293     int forced_kf_count;
294     int forced_kf_index;
295
296     /* audio only */
297     int audio_resample;
298     ReSampleContext *resample; /* for audio resampling */
299     int resample_sample_fmt;
300     int resample_channels;
301     int resample_sample_rate;
302     int reformat_pair;
303     AVAudioConvert *reformat_ctx;
304     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
305     FILE *logfile;
306 } AVOutputStream;
307
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
310
311 typedef struct AVInputStream {
312     int file_index;
313     int index;
314     AVStream *st;
315     int discard;             /* true if stream data should be discarded */
316     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
317     int64_t sample_index;      /* current sample */
318
319     int64_t       start;     /* time when read started */
320     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
321                                 is not defined */
322     int64_t       pts;       /* current pts */
323     PtsCorrectionContext pts_ctx;
324     int is_start;            /* is 1 at the start and after a discontinuity */
325     int showed_multi_packet_warning;
326     int is_past_recording_time;
327 #if CONFIG_AVFILTER
328     AVFilterContext *output_video_filter;
329     AVFilterContext *input_video_filter;
330     AVFrame *filter_frame;
331     int has_filter_frame;
332     AVFilterBufferRef *picref;
333 #endif
334 } AVInputStream;
335
336 typedef struct AVInputFile {
337     int eof_reached;      /* true if eof reached */
338     int ist_index;        /* index of first stream in ist_table */
339     int buffer_size;      /* current total buffer size */
340     int nb_streams;       /* nb streams we are aware of */
341 } AVInputFile;
342
343 #if HAVE_TERMIOS_H
344
345 /* init terminal so that we can grab keys */
346 static struct termios oldtty;
347 #endif
348
349 #if CONFIG_AVFILTER
350
351 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
352 {
353     AVFilterContext *last_filter, *filter;
354     /** filter graph containing all filters including input & output */
355     AVCodecContext *codec = ost->st->codec;
356     AVCodecContext *icodec = ist->st->codec;
357     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
358     AVRational sample_aspect_ratio;
359     char args[255];
360     int ret;
361
362     graph = avfilter_graph_alloc();
363
364     if (ist->st->sample_aspect_ratio.num){
365         sample_aspect_ratio = ist->st->sample_aspect_ratio;
366     }else
367         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
368
369     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
370              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
371              sample_aspect_ratio.num, sample_aspect_ratio.den);
372
373     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
374                                        "src", args, NULL, graph);
375     if (ret < 0)
376         return ret;
377     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
378                                        "out", NULL, &ffsink_ctx, graph);
379     if (ret < 0)
380         return ret;
381     last_filter = ist->input_video_filter;
382
383     if (codec->width  != icodec->width || codec->height != icodec->height) {
384         snprintf(args, 255, "%d:%d:flags=0x%X",
385                  codec->width,
386                  codec->height,
387                  (int)av_get_int(sws_opts, "sws_flags", NULL));
388         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
389                                                 NULL, args, NULL, graph)) < 0)
390             return ret;
391         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
392             return ret;
393         last_filter = filter;
394     }
395
396     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
397     graph->scale_sws_opts = av_strdup(args);
398
399     if (vfilters) {
400         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
401         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
402
403         outputs->name    = av_strdup("in");
404         outputs->filter_ctx = last_filter;
405         outputs->pad_idx = 0;
406         outputs->next    = NULL;
407
408         inputs->name    = av_strdup("out");
409         inputs->filter_ctx = ist->output_video_filter;
410         inputs->pad_idx = 0;
411         inputs->next    = NULL;
412
413         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
414             return ret;
415         av_freep(&vfilters);
416     } else {
417         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
418             return ret;
419     }
420
421     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
422         return ret;
423
424     codec->width  = ist->output_video_filter->inputs[0]->w;
425     codec->height = ist->output_video_filter->inputs[0]->h;
426     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
427         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
428
429     return 0;
430 }
431 #endif /* CONFIG_AVFILTER */
432
433 static void term_exit(void)
434 {
435     av_log(NULL, AV_LOG_QUIET, "");
436 #if HAVE_TERMIOS_H
437     tcsetattr (0, TCSANOW, &oldtty);
438 #endif
439 }
440
441 static volatile int received_sigterm = 0;
442
443 static void
444 sigterm_handler(int sig)
445 {
446     received_sigterm = sig;
447     term_exit();
448 }
449
450 static void term_init(void)
451 {
452 #if HAVE_TERMIOS_H
453     struct termios tty;
454
455     tcgetattr (0, &tty);
456     oldtty = tty;
457     atexit(term_exit);
458
459     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
460                           |INLCR|IGNCR|ICRNL|IXON);
461     tty.c_oflag |= OPOST;
462     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
463     tty.c_cflag &= ~(CSIZE|PARENB);
464     tty.c_cflag |= CS8;
465     tty.c_cc[VMIN] = 1;
466     tty.c_cc[VTIME] = 0;
467
468     tcsetattr (0, TCSANOW, &tty);
469     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
470 #endif
471
472     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
473     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
474 #ifdef SIGXCPU
475     signal(SIGXCPU, sigterm_handler);
476 #endif
477 }
478
479 /* read a key without blocking */
480 static int read_key(void)
481 {
482 #if HAVE_TERMIOS_H
483     int n = 1;
484     unsigned char ch;
485     struct timeval tv;
486     fd_set rfds;
487
488     FD_ZERO(&rfds);
489     FD_SET(0, &rfds);
490     tv.tv_sec = 0;
491     tv.tv_usec = 0;
492     n = select(1, &rfds, NULL, NULL, &tv);
493     if (n > 0) {
494         n = read(0, &ch, 1);
495         if (n == 1)
496             return ch;
497
498         return n;
499     }
500 #elif HAVE_CONIO_H
501     if(kbhit())
502         return(getch());
503 #endif
504     return -1;
505 }
506
507 static int decode_interrupt_cb(void)
508 {
509     return q_pressed || (q_pressed = read_key() == 'q');
510 }
511
512 static int ffmpeg_exit(int ret)
513 {
514     int i;
515
516     /* close files */
517     for(i=0;i<nb_output_files;i++) {
518         AVFormatContext *s = output_files[i];
519         int j;
520         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
521             url_fclose(s->pb);
522         avformat_free_context(s);
523         av_free(output_streams_for_file[i]);
524     }
525     for(i=0;i<nb_input_files;i++) {
526         av_close_input_file(input_files[i]);
527         av_free(input_files_ts_scale[i]);
528     }
529
530     av_free(intra_matrix);
531     av_free(inter_matrix);
532
533     if (vstats_file)
534         fclose(vstats_file);
535     av_free(vstats_filename);
536
537     av_free(streamid_map);
538     av_free(input_codecs);
539     av_free(output_codecs);
540     av_free(stream_maps);
541     av_free(meta_data_maps);
542
543     av_free(video_codec_name);
544     av_free(audio_codec_name);
545     av_free(subtitle_codec_name);
546
547     av_free(video_standard);
548
549     uninit_opts();
550     av_free(audio_buf);
551     av_free(audio_out);
552     allocated_audio_buf_size= allocated_audio_out_size= 0;
553     av_free(samples);
554
555 #if CONFIG_AVFILTER
556     avfilter_uninit();
557 #endif
558
559     if (received_sigterm) {
560         fprintf(stderr,
561             "Received signal %d: terminating.\n",
562             (int) received_sigterm);
563         exit (255);
564     }
565
566     exit(ret); /* not all OS-es handle main() return value */
567     return ret;
568 }
569
570 /* similar to ff_dynarray_add() and av_fast_realloc() */
571 static void *grow_array(void *array, int elem_size, int *size, int new_size)
572 {
573     if (new_size >= INT_MAX / elem_size) {
574         fprintf(stderr, "Array too big.\n");
575         ffmpeg_exit(1);
576     }
577     if (*size < new_size) {
578         uint8_t *tmp = av_realloc(array, new_size*elem_size);
579         if (!tmp) {
580             fprintf(stderr, "Could not alloc buffer.\n");
581             ffmpeg_exit(1);
582         }
583         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
584         *size = new_size;
585         return tmp;
586     }
587     return array;
588 }
589
590 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
591 {
592     if(codec && codec->sample_fmts){
593         const enum AVSampleFormat *p= codec->sample_fmts;
594         for(; *p!=-1; p++){
595             if(*p == st->codec->sample_fmt)
596                 break;
597         }
598         if (*p == -1) {
599             av_log(NULL, AV_LOG_WARNING,
600                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
601                    av_get_sample_fmt_name(st->codec->sample_fmt),
602                    codec->name,
603                    av_get_sample_fmt_name(codec->sample_fmts[0]));
604             st->codec->sample_fmt = codec->sample_fmts[0];
605         }
606     }
607 }
608
609 static void choose_sample_rate(AVStream *st, AVCodec *codec)
610 {
611     if(codec && codec->supported_samplerates){
612         const int *p= codec->supported_samplerates;
613         int best=0;
614         int best_dist=INT_MAX;
615         for(; *p; p++){
616             int dist= abs(st->codec->sample_rate - *p);
617             if(dist < best_dist){
618                 best_dist= dist;
619                 best= *p;
620             }
621         }
622         if(best_dist){
623             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
624         }
625         st->codec->sample_rate= best;
626     }
627 }
628
629 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
630 {
631     if(codec && codec->pix_fmts){
632         const enum PixelFormat *p= codec->pix_fmts;
633         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
634             if(st->codec->codec_id==CODEC_ID_MJPEG){
635                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
636             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
637                 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};
638             }
639         }
640         for(; *p!=-1; p++){
641             if(*p == st->codec->pix_fmt)
642                 break;
643         }
644         if(*p == -1)
645             st->codec->pix_fmt = codec->pix_fmts[0];
646     }
647 }
648
649 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
650 {
651     int idx = oc->nb_streams - 1;
652     AVOutputStream *ost;
653
654     output_streams_for_file[file_idx] =
655         grow_array(output_streams_for_file[file_idx],
656                    sizeof(*output_streams_for_file[file_idx]),
657                    &nb_output_streams_for_file[file_idx],
658                    oc->nb_streams);
659     ost = output_streams_for_file[file_idx][idx] =
660         av_mallocz(sizeof(AVOutputStream));
661     if (!ost) {
662         fprintf(stderr, "Could not alloc output stream\n");
663         ffmpeg_exit(1);
664     }
665     ost->file_index = file_idx;
666     ost->index = idx;
667     return ost;
668 }
669
670 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
671 {
672     int i, err;
673     AVFormatContext *ic;
674     int nopts = 0;
675
676     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
677     if (err < 0)
678         return err;
679     /* copy stream format */
680     s->nb_streams = 0;
681     for(i=0;i<ic->nb_streams;i++) {
682         AVStream *st;
683         AVCodec *codec;
684
685         s->nb_streams++;
686
687         // FIXME: a more elegant solution is needed
688         st = av_mallocz(sizeof(AVStream));
689         memcpy(st, ic->streams[i], sizeof(AVStream));
690         st->codec = avcodec_alloc_context();
691         if (!st->codec) {
692             print_error(filename, AVERROR(ENOMEM));
693             ffmpeg_exit(1);
694         }
695         avcodec_copy_context(st->codec, ic->streams[i]->codec);
696         s->streams[i] = st;
697
698         codec = avcodec_find_encoder(st->codec->codec_id);
699         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
700             if (audio_stream_copy) {
701                 st->stream_copy = 1;
702             } else
703                 choose_sample_fmt(st, codec);
704         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
705             if (video_stream_copy) {
706                 st->stream_copy = 1;
707             } else
708                 choose_pixel_fmt(st, codec);
709         }
710
711         if(!st->codec->thread_count)
712             st->codec->thread_count = 1;
713         if(st->codec->thread_count>1)
714             avcodec_thread_init(st->codec, st->codec->thread_count);
715
716         if(st->codec->flags & CODEC_FLAG_BITEXACT)
717             nopts = 1;
718
719         new_output_stream(s, nb_output_files);
720     }
721
722     if (!nopts)
723         s->timestamp = av_gettime();
724
725     av_close_input_file(ic);
726     return 0;
727 }
728
729 static double
730 get_sync_ipts(const AVOutputStream *ost)
731 {
732     const AVInputStream *ist = ost->sync_ist;
733     return (double)(ist->pts - start_time)/AV_TIME_BASE;
734 }
735
736 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
737     int ret;
738
739     while(bsfc){
740         AVPacket new_pkt= *pkt;
741         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
742                                           &new_pkt.data, &new_pkt.size,
743                                           pkt->data, pkt->size,
744                                           pkt->flags & AV_PKT_FLAG_KEY);
745         if(a>0){
746             av_free_packet(pkt);
747             new_pkt.destruct= av_destruct_packet;
748         } else if(a<0){
749             fprintf(stderr, "%s failed for stream %d, codec %s",
750                     bsfc->filter->name, pkt->stream_index,
751                     avctx->codec ? avctx->codec->name : "copy");
752             print_error("", a);
753             if (exit_on_error)
754                 ffmpeg_exit(1);
755         }
756         *pkt= new_pkt;
757
758         bsfc= bsfc->next;
759     }
760
761     ret= av_interleaved_write_frame(s, pkt);
762     if(ret < 0){
763         print_error("av_interleaved_write_frame()", ret);
764         ffmpeg_exit(1);
765     }
766 }
767
768 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
769
770 static void do_audio_out(AVFormatContext *s,
771                          AVOutputStream *ost,
772                          AVInputStream *ist,
773                          unsigned char *buf, int size)
774 {
775     uint8_t *buftmp;
776     int64_t audio_out_size, audio_buf_size;
777     int64_t allocated_for_size= size;
778
779     int size_out, frame_bytes, ret, resample_changed;
780     AVCodecContext *enc= ost->st->codec;
781     AVCodecContext *dec= ist->st->codec;
782     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
783     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
784     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
785
786 need_realloc:
787     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
788     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
789     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
790     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
791     audio_buf_size*= osize*enc->channels;
792
793     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
794     if(coded_bps > 8*osize)
795         audio_out_size= audio_out_size * coded_bps / (8*osize);
796     audio_out_size += FF_MIN_BUFFER_SIZE;
797
798     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
799         fprintf(stderr, "Buffer sizes too large\n");
800         ffmpeg_exit(1);
801     }
802
803     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
804     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
805     if (!audio_buf || !audio_out){
806         fprintf(stderr, "Out of memory in do_audio_out\n");
807         ffmpeg_exit(1);
808     }
809
810     if (enc->channels != dec->channels)
811         ost->audio_resample = 1;
812
813     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
814                        ost->resample_channels    != dec->channels   ||
815                        ost->resample_sample_rate != dec->sample_rate;
816
817     if ((ost->audio_resample && !ost->resample) || resample_changed) {
818         if (resample_changed) {
819             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",
820                    ist->file_index, ist->index,
821                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
822                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
823             ost->resample_sample_fmt  = dec->sample_fmt;
824             ost->resample_channels    = dec->channels;
825             ost->resample_sample_rate = dec->sample_rate;
826             if (ost->resample)
827                 audio_resample_close(ost->resample);
828         }
829         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
830         if (audio_sync_method <= 1 &&
831             ost->resample_sample_fmt  == enc->sample_fmt &&
832             ost->resample_channels    == enc->channels   &&
833             ost->resample_sample_rate == enc->sample_rate) {
834             ost->resample = NULL;
835             ost->audio_resample = 0;
836         } else {
837             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
838                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
839             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
840                                                    enc->sample_rate, dec->sample_rate,
841                                                    enc->sample_fmt,  dec->sample_fmt,
842                                                    16, 10, 0, 0.8);
843             if (!ost->resample) {
844                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
845                         dec->channels, dec->sample_rate,
846                         enc->channels, enc->sample_rate);
847                 ffmpeg_exit(1);
848             }
849         }
850     }
851
852 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
853     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
854         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
855         if (ost->reformat_ctx)
856             av_audio_convert_free(ost->reformat_ctx);
857         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
858                                                    dec->sample_fmt, 1, NULL, 0);
859         if (!ost->reformat_ctx) {
860             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
861                 av_get_sample_fmt_name(dec->sample_fmt),
862                 av_get_sample_fmt_name(enc->sample_fmt));
863             ffmpeg_exit(1);
864         }
865         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
866     }
867
868     if(audio_sync_method){
869         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
870                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
871         double idelta= delta*dec->sample_rate / enc->sample_rate;
872         int byte_delta= ((int)idelta)*2*dec->channels;
873
874         //FIXME resample delay
875         if(fabs(delta) > 50){
876             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
877                 if(byte_delta < 0){
878                     byte_delta= FFMAX(byte_delta, -size);
879                     size += byte_delta;
880                     buf  -= byte_delta;
881                     if(verbose > 2)
882                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
883                     if(!size)
884                         return;
885                     ist->is_start=0;
886                 }else{
887                     static uint8_t *input_tmp= NULL;
888                     input_tmp= av_realloc(input_tmp, byte_delta + size);
889
890                     if(byte_delta > allocated_for_size - size){
891                         allocated_for_size= byte_delta + (int64_t)size;
892                         goto need_realloc;
893                     }
894                     ist->is_start=0;
895
896                     memset(input_tmp, 0, byte_delta);
897                     memcpy(input_tmp + byte_delta, buf, size);
898                     buf= input_tmp;
899                     size += byte_delta;
900                     if(verbose > 2)
901                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
902                 }
903             }else if(audio_sync_method>1){
904                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
905                 av_assert0(ost->audio_resample);
906                 if(verbose > 2)
907                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
908 //                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));
909                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
910             }
911         }
912     }else
913         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
914                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
915
916     if (ost->audio_resample) {
917         buftmp = audio_buf;
918         size_out = audio_resample(ost->resample,
919                                   (short *)buftmp, (short *)buf,
920                                   size / (dec->channels * isize));
921         size_out = size_out * enc->channels * osize;
922     } else {
923         buftmp = buf;
924         size_out = size;
925     }
926
927     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
928         const void *ibuf[6]= {buftmp};
929         void *obuf[6]= {audio_buf};
930         int istride[6]= {isize};
931         int ostride[6]= {osize};
932         int len= size_out/istride[0];
933         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
934             printf("av_audio_convert() failed\n");
935             if (exit_on_error)
936                 ffmpeg_exit(1);
937             return;
938         }
939         buftmp = audio_buf;
940         size_out = len*osize;
941     }
942
943     /* now encode as many frames as possible */
944     if (enc->frame_size > 1) {
945         /* output resampled raw samples */
946         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
947             fprintf(stderr, "av_fifo_realloc2() failed\n");
948             ffmpeg_exit(1);
949         }
950         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
951
952         frame_bytes = enc->frame_size * osize * enc->channels;
953
954         while (av_fifo_size(ost->fifo) >= frame_bytes) {
955             AVPacket pkt;
956             av_init_packet(&pkt);
957
958             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
959
960             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
961
962             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
963                                        (short *)audio_buf);
964             if (ret < 0) {
965                 fprintf(stderr, "Audio encoding failed\n");
966                 ffmpeg_exit(1);
967             }
968             audio_size += ret;
969             pkt.stream_index= ost->index;
970             pkt.data= audio_out;
971             pkt.size= ret;
972             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
973                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
974             pkt.flags |= AV_PKT_FLAG_KEY;
975             write_frame(s, &pkt, enc, ost->bitstream_filters);
976
977             ost->sync_opts += enc->frame_size;
978         }
979     } else {
980         AVPacket pkt;
981         av_init_packet(&pkt);
982
983         ost->sync_opts += size_out / (osize * enc->channels);
984
985         /* output a pcm frame */
986         /* determine the size of the coded buffer */
987         size_out /= osize;
988         if (coded_bps)
989             size_out = size_out*coded_bps/8;
990
991         if(size_out > audio_out_size){
992             fprintf(stderr, "Internal error, buffer size too small\n");
993             ffmpeg_exit(1);
994         }
995
996         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
997         ret = avcodec_encode_audio(enc, audio_out, size_out,
998                                    (short *)buftmp);
999         if (ret < 0) {
1000             fprintf(stderr, "Audio encoding failed\n");
1001             ffmpeg_exit(1);
1002         }
1003         audio_size += ret;
1004         pkt.stream_index= ost->index;
1005         pkt.data= audio_out;
1006         pkt.size= ret;
1007         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1008             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1009         pkt.flags |= AV_PKT_FLAG_KEY;
1010         write_frame(s, &pkt, enc, ost->bitstream_filters);
1011     }
1012 }
1013
1014 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1015 {
1016     AVCodecContext *dec;
1017     AVPicture *picture2;
1018     AVPicture picture_tmp;
1019     uint8_t *buf = 0;
1020
1021     dec = ist->st->codec;
1022
1023     /* deinterlace : must be done before any resize */
1024     if (do_deinterlace) {
1025         int size;
1026
1027         /* create temporary picture */
1028         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1029         buf = av_malloc(size);
1030         if (!buf)
1031             return;
1032
1033         picture2 = &picture_tmp;
1034         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1035
1036         if(avpicture_deinterlace(picture2, picture,
1037                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1038             /* if error, do not deinterlace */
1039             fprintf(stderr, "Deinterlacing failed\n");
1040             av_free(buf);
1041             buf = NULL;
1042             picture2 = picture;
1043         }
1044     } else {
1045         picture2 = picture;
1046     }
1047
1048     if (picture != picture2)
1049         *picture = *picture2;
1050     *bufp = buf;
1051 }
1052
1053 /* we begin to correct av delay at this threshold */
1054 #define AV_DELAY_MAX 0.100
1055
1056 static void do_subtitle_out(AVFormatContext *s,
1057                             AVOutputStream *ost,
1058                             AVInputStream *ist,
1059                             AVSubtitle *sub,
1060                             int64_t pts)
1061 {
1062     static uint8_t *subtitle_out = NULL;
1063     int subtitle_out_max_size = 1024 * 1024;
1064     int subtitle_out_size, nb, i;
1065     AVCodecContext *enc;
1066     AVPacket pkt;
1067
1068     if (pts == AV_NOPTS_VALUE) {
1069         fprintf(stderr, "Subtitle packets must have a pts\n");
1070         if (exit_on_error)
1071             ffmpeg_exit(1);
1072         return;
1073     }
1074
1075     enc = ost->st->codec;
1076
1077     if (!subtitle_out) {
1078         subtitle_out = av_malloc(subtitle_out_max_size);
1079     }
1080
1081     /* Note: DVB subtitle need one packet to draw them and one other
1082        packet to clear them */
1083     /* XXX: signal it in the codec context ? */
1084     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1085         nb = 2;
1086     else
1087         nb = 1;
1088
1089     for(i = 0; i < nb; i++) {
1090         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1091         // start_display_time is required to be 0
1092         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1093         sub->end_display_time -= sub->start_display_time;
1094         sub->start_display_time = 0;
1095         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1096                                                     subtitle_out_max_size, sub);
1097         if (subtitle_out_size < 0) {
1098             fprintf(stderr, "Subtitle encoding failed\n");
1099             ffmpeg_exit(1);
1100         }
1101
1102         av_init_packet(&pkt);
1103         pkt.stream_index = ost->index;
1104         pkt.data = subtitle_out;
1105         pkt.size = subtitle_out_size;
1106         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1107         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1108             /* XXX: the pts correction is handled here. Maybe handling
1109                it in the codec would be better */
1110             if (i == 0)
1111                 pkt.pts += 90 * sub->start_display_time;
1112             else
1113                 pkt.pts += 90 * sub->end_display_time;
1114         }
1115         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1116     }
1117 }
1118
1119 static int bit_buffer_size= 1024*256;
1120 static uint8_t *bit_buffer= NULL;
1121
1122 static void do_video_out(AVFormatContext *s,
1123                          AVOutputStream *ost,
1124                          AVInputStream *ist,
1125                          AVFrame *in_picture,
1126                          int *frame_size)
1127 {
1128     int nb_frames, i, ret;
1129     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1130     AVCodecContext *enc, *dec;
1131     double sync_ipts;
1132
1133     enc = ost->st->codec;
1134     dec = ist->st->codec;
1135
1136     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1137
1138     /* by default, we output a single frame */
1139     nb_frames = 1;
1140
1141     *frame_size = 0;
1142
1143     if(video_sync_method){
1144         double vdelta = sync_ipts - ost->sync_opts;
1145         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1146         if (vdelta < -1.1)
1147             nb_frames = 0;
1148         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1149             if(vdelta<=-0.6){
1150                 nb_frames=0;
1151             }else if(vdelta>0.6)
1152                 ost->sync_opts= lrintf(sync_ipts);
1153         }else if (vdelta > 1.1)
1154             nb_frames = lrintf(vdelta);
1155 //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);
1156         if (nb_frames == 0){
1157             ++nb_frames_drop;
1158             if (verbose>2)
1159                 fprintf(stderr, "*** drop!\n");
1160         }else if (nb_frames > 1) {
1161             nb_frames_dup += nb_frames - 1;
1162             if (verbose>2)
1163                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1164         }
1165     }else
1166         ost->sync_opts= lrintf(sync_ipts);
1167
1168     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1169     if (nb_frames <= 0)
1170         return;
1171
1172     formatted_picture = in_picture;
1173     final_picture = formatted_picture;
1174     padding_src = formatted_picture;
1175     resampling_dst = &ost->pict_tmp;
1176
1177     if (   ost->resample_height != ist->st->codec->height
1178         || ost->resample_width  != ist->st->codec->width
1179         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1180
1181         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));
1182         if(!ost->video_resample)
1183             ffmpeg_exit(1);
1184     }
1185
1186 #if !CONFIG_AVFILTER
1187     if (ost->video_resample) {
1188         padding_src = NULL;
1189         final_picture = &ost->pict_tmp;
1190         if(  ost->resample_height != ist->st->codec->height
1191           || ost->resample_width  != ist->st->codec->width
1192           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1193
1194             /* initialize a new scaler context */
1195             sws_freeContext(ost->img_resample_ctx);
1196             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1197             ost->img_resample_ctx = sws_getContext(
1198                 ist->st->codec->width,
1199                 ist->st->codec->height,
1200                 ist->st->codec->pix_fmt,
1201                 ost->st->codec->width,
1202                 ost->st->codec->height,
1203                 ost->st->codec->pix_fmt,
1204                 sws_flags, NULL, NULL, NULL);
1205             if (ost->img_resample_ctx == NULL) {
1206                 fprintf(stderr, "Cannot get resampling context\n");
1207                 ffmpeg_exit(1);
1208             }
1209         }
1210         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1211               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1212     }
1213 #endif
1214
1215     /* duplicates frame if needed */
1216     for(i=0;i<nb_frames;i++) {
1217         AVPacket pkt;
1218         av_init_packet(&pkt);
1219         pkt.stream_index= ost->index;
1220
1221         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1222             /* raw pictures are written as AVPicture structure to
1223                avoid any copies. We support temorarily the older
1224                method. */
1225             AVFrame* old_frame = enc->coded_frame;
1226             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1227             pkt.data= (uint8_t *)final_picture;
1228             pkt.size=  sizeof(AVPicture);
1229             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1230             pkt.flags |= AV_PKT_FLAG_KEY;
1231
1232             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1233             enc->coded_frame = old_frame;
1234         } else {
1235             AVFrame big_picture;
1236
1237             big_picture= *final_picture;
1238             /* better than nothing: use input picture interlaced
1239                settings */
1240             big_picture.interlaced_frame = in_picture->interlaced_frame;
1241             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1242                 if(top_field_first == -1)
1243                     big_picture.top_field_first = in_picture->top_field_first;
1244                 else
1245                     big_picture.top_field_first = top_field_first;
1246             }
1247
1248             /* handles sameq here. This is not correct because it may
1249                not be a global option */
1250             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1251             if(!me_threshold)
1252                 big_picture.pict_type = 0;
1253 //            big_picture.pts = AV_NOPTS_VALUE;
1254             big_picture.pts= ost->sync_opts;
1255 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1256 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1257             if (ost->forced_kf_index < ost->forced_kf_count &&
1258                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1259                 big_picture.pict_type = FF_I_TYPE;
1260                 ost->forced_kf_index++;
1261             }
1262             ret = avcodec_encode_video(enc,
1263                                        bit_buffer, bit_buffer_size,
1264                                        &big_picture);
1265             if (ret < 0) {
1266                 fprintf(stderr, "Video encoding failed\n");
1267                 ffmpeg_exit(1);
1268             }
1269
1270             if(ret>0){
1271                 pkt.data= bit_buffer;
1272                 pkt.size= ret;
1273                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1274                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1275 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1276    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1277    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1278
1279                 if(enc->coded_frame->key_frame)
1280                     pkt.flags |= AV_PKT_FLAG_KEY;
1281                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1282                 *frame_size = ret;
1283                 video_size += ret;
1284                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1285                 //        enc->frame_number-1, ret, enc->pict_type);
1286                 /* if two pass, output log */
1287                 if (ost->logfile && enc->stats_out) {
1288                     fprintf(ost->logfile, "%s", enc->stats_out);
1289                 }
1290             }
1291         }
1292         ost->sync_opts++;
1293         ost->frame_number++;
1294     }
1295 }
1296
1297 static double psnr(double d){
1298     return -10.0*log(d)/log(10.0);
1299 }
1300
1301 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1302                            int frame_size)
1303 {
1304     AVCodecContext *enc;
1305     int frame_number;
1306     double ti1, bitrate, avg_bitrate;
1307
1308     /* this is executed just the first time do_video_stats is called */
1309     if (!vstats_file) {
1310         vstats_file = fopen(vstats_filename, "w");
1311         if (!vstats_file) {
1312             perror("fopen");
1313             ffmpeg_exit(1);
1314         }
1315     }
1316
1317     enc = ost->st->codec;
1318     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1319         frame_number = ost->frame_number;
1320         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1321         if (enc->flags&CODEC_FLAG_PSNR)
1322             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1323
1324         fprintf(vstats_file,"f_size= %6d ", frame_size);
1325         /* compute pts value */
1326         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1327         if (ti1 < 0.01)
1328             ti1 = 0.01;
1329
1330         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1331         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1332         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1333             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1334         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1335     }
1336 }
1337
1338 static void print_report(AVFormatContext **output_files,
1339                          AVOutputStream **ost_table, int nb_ostreams,
1340                          int is_last_report)
1341 {
1342     char buf[1024];
1343     AVOutputStream *ost;
1344     AVFormatContext *oc;
1345     int64_t total_size;
1346     AVCodecContext *enc;
1347     int frame_number, vid, i;
1348     double bitrate, ti1, pts;
1349     static int64_t last_time = -1;
1350     static int qp_histogram[52];
1351
1352     if (!is_last_report) {
1353         int64_t cur_time;
1354         /* display the report every 0.5 seconds */
1355         cur_time = av_gettime();
1356         if (last_time == -1) {
1357             last_time = cur_time;
1358             return;
1359         }
1360         if ((cur_time - last_time) < 500000)
1361             return;
1362         last_time = cur_time;
1363     }
1364
1365
1366     oc = output_files[0];
1367
1368     total_size = url_fsize(oc->pb);
1369     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1370         total_size= url_ftell(oc->pb);
1371
1372     buf[0] = '\0';
1373     ti1 = 1e10;
1374     vid = 0;
1375     for(i=0;i<nb_ostreams;i++) {
1376         ost = ost_table[i];
1377         enc = ost->st->codec;
1378         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1379             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1380                      !ost->st->stream_copy ?
1381                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1382         }
1383         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1384             float t = (av_gettime()-timer_start) / 1000000.0;
1385
1386             frame_number = ost->frame_number;
1387             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1388                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1389                      !ost->st->stream_copy ?
1390                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1391             if(is_last_report)
1392                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1393             if(qp_hist){
1394                 int j;
1395                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1396                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1397                     qp_histogram[qp]++;
1398                 for(j=0; j<32; j++)
1399                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1400             }
1401             if (enc->flags&CODEC_FLAG_PSNR){
1402                 int j;
1403                 double error, error_sum=0;
1404                 double scale, scale_sum=0;
1405                 char type[3]= {'Y','U','V'};
1406                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1407                 for(j=0; j<3; j++){
1408                     if(is_last_report){
1409                         error= enc->error[j];
1410                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1411                     }else{
1412                         error= enc->coded_frame->error[j];
1413                         scale= enc->width*enc->height*255.0*255.0;
1414                     }
1415                     if(j) scale/=4;
1416                     error_sum += error;
1417                     scale_sum += scale;
1418                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1419                 }
1420                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1421             }
1422             vid = 1;
1423         }
1424         /* compute min output value */
1425         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1426         if ((pts < ti1) && (pts > 0))
1427             ti1 = pts;
1428     }
1429     if (ti1 < 0.01)
1430         ti1 = 0.01;
1431
1432     if (verbose || is_last_report) {
1433         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1434
1435         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1436             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1437             (double)total_size / 1024, ti1, bitrate);
1438
1439         if (nb_frames_dup || nb_frames_drop)
1440           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1441                   nb_frames_dup, nb_frames_drop);
1442
1443         if (verbose >= 0)
1444             fprintf(stderr, "%s    \r", buf);
1445
1446         fflush(stderr);
1447     }
1448
1449     if (is_last_report && verbose >= 0){
1450         int64_t raw= audio_size + video_size + extra_size;
1451         fprintf(stderr, "\n");
1452         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1453                 video_size/1024.0,
1454                 audio_size/1024.0,
1455                 extra_size/1024.0,
1456                 100.0*(total_size - raw)/raw
1457         );
1458     }
1459 }
1460
1461 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1462 static int output_packet(AVInputStream *ist, int ist_index,
1463                          AVOutputStream **ost_table, int nb_ostreams,
1464                          const AVPacket *pkt)
1465 {
1466     AVFormatContext *os;
1467     AVOutputStream *ost;
1468     int ret, i;
1469     int got_picture;
1470     AVFrame picture;
1471     void *buffer_to_free;
1472     static unsigned int samples_size= 0;
1473     AVSubtitle subtitle, *subtitle_to_free;
1474     int64_t pkt_pts = AV_NOPTS_VALUE;
1475 #if CONFIG_AVFILTER
1476     int frame_available;
1477 #endif
1478
1479     AVPacket avpkt;
1480     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1481
1482     if(ist->next_pts == AV_NOPTS_VALUE)
1483         ist->next_pts= ist->pts;
1484
1485     if (pkt == NULL) {
1486         /* EOF handling */
1487         av_init_packet(&avpkt);
1488         avpkt.data = NULL;
1489         avpkt.size = 0;
1490         goto handle_eof;
1491     } else {
1492         avpkt = *pkt;
1493     }
1494
1495     if(pkt->dts != AV_NOPTS_VALUE)
1496         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1497     if(pkt->pts != AV_NOPTS_VALUE)
1498         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1499
1500     //while we have more to decode or while the decoder did output something on EOF
1501     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1502         uint8_t *data_buf, *decoded_data_buf;
1503         int data_size, decoded_data_size;
1504     handle_eof:
1505         ist->pts= ist->next_pts;
1506
1507         if(avpkt.size && avpkt.size != pkt->size &&
1508            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1509             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1510             ist->showed_multi_packet_warning=1;
1511         }
1512
1513         /* decode the packet if needed */
1514         decoded_data_buf = NULL; /* fail safe */
1515         decoded_data_size= 0;
1516         data_buf  = avpkt.data;
1517         data_size = avpkt.size;
1518         subtitle_to_free = NULL;
1519         if (ist->decoding_needed) {
1520             switch(ist->st->codec->codec_type) {
1521             case AVMEDIA_TYPE_AUDIO:{
1522                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1523                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1524                     av_free(samples);
1525                     samples= av_malloc(samples_size);
1526                 }
1527                 decoded_data_size= samples_size;
1528                     /* XXX: could avoid copy if PCM 16 bits with same
1529                        endianness as CPU */
1530                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1531                                             &avpkt);
1532                 if (ret < 0)
1533                     goto fail_decode;
1534                 avpkt.data += ret;
1535                 avpkt.size -= ret;
1536                 data_size   = ret;
1537                 /* Some bug in mpeg audio decoder gives */
1538                 /* decoded_data_size < 0, it seems they are overflows */
1539                 if (decoded_data_size <= 0) {
1540                     /* no audio frame */
1541                     continue;
1542                 }
1543                 decoded_data_buf = (uint8_t *)samples;
1544                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1545                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1546                 break;}
1547             case AVMEDIA_TYPE_VIDEO:
1548                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1549                     /* XXX: allocate picture correctly */
1550                     avcodec_get_frame_defaults(&picture);
1551                     avpkt.pts = pkt_pts;
1552                     avpkt.dts = ist->pts;
1553                     pkt_pts = AV_NOPTS_VALUE;
1554
1555                     ret = avcodec_decode_video2(ist->st->codec,
1556                                                 &picture, &got_picture, &avpkt);
1557                     ist->st->quality= picture.quality;
1558                     if (ret < 0)
1559                         goto fail_decode;
1560                     if (!got_picture) {
1561                         /* no picture yet */
1562                         goto discard_packet;
1563                     }
1564                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1565                     if (ist->st->codec->time_base.num != 0) {
1566                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1567                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1568                                           ist->st->codec->time_base.num * ticks) /
1569                             ist->st->codec->time_base.den;
1570                     }
1571                     avpkt.size = 0;
1572                     break;
1573             case AVMEDIA_TYPE_SUBTITLE:
1574                 ret = avcodec_decode_subtitle2(ist->st->codec,
1575                                                &subtitle, &got_picture, &avpkt);
1576                 if (ret < 0)
1577                     goto fail_decode;
1578                 if (!got_picture) {
1579                     goto discard_packet;
1580                 }
1581                 subtitle_to_free = &subtitle;
1582                 avpkt.size = 0;
1583                 break;
1584             default:
1585                 goto fail_decode;
1586             }
1587         } else {
1588             switch(ist->st->codec->codec_type) {
1589             case AVMEDIA_TYPE_AUDIO:
1590                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1591                     ist->st->codec->sample_rate;
1592                 break;
1593             case AVMEDIA_TYPE_VIDEO:
1594                 if (ist->st->codec->time_base.num != 0) {
1595                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1596                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1597                                       ist->st->codec->time_base.num * ticks) /
1598                         ist->st->codec->time_base.den;
1599                 }
1600                 break;
1601             }
1602             ret = avpkt.size;
1603             avpkt.size = 0;
1604         }
1605
1606         buffer_to_free = NULL;
1607         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1608             pre_process_video_frame(ist, (AVPicture *)&picture,
1609                                     &buffer_to_free);
1610         }
1611
1612 #if CONFIG_AVFILTER
1613         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1614             AVRational sar;
1615             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1616             else                                  sar = ist->st->codec->sample_aspect_ratio;
1617             // add it to be filtered
1618             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1619                                      ist->pts,
1620                                      sar);
1621         }
1622 #endif
1623
1624         // preprocess audio (volume)
1625         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1626             if (audio_volume != 256) {
1627                 short *volp;
1628                 volp = samples;
1629                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1630                     int v = ((*volp) * audio_volume + 128) >> 8;
1631                     if (v < -32768) v = -32768;
1632                     if (v >  32767) v = 32767;
1633                     *volp++ = v;
1634                 }
1635             }
1636         }
1637
1638         /* frame rate emulation */
1639         if (rate_emu) {
1640             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1641             int64_t now = av_gettime() - ist->start;
1642             if (pts > now)
1643                 usleep(pts - now);
1644         }
1645 #if CONFIG_AVFILTER
1646         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1647             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1648 #endif
1649         /* if output time reached then transcode raw format,
1650            encode packets and output them */
1651         if (start_time == 0 || ist->pts >= start_time)
1652 #if CONFIG_AVFILTER
1653         while (frame_available) {
1654             AVRational ist_pts_tb;
1655             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1656                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1657             if (ist->picref)
1658                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1659 #endif
1660             for(i=0;i<nb_ostreams;i++) {
1661                 int frame_size;
1662
1663                 ost = ost_table[i];
1664                 if (ost->source_index == ist_index) {
1665                     os = output_files[ost->file_index];
1666
1667                     /* set the input output pts pairs */
1668                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1669
1670                     if (ost->encoding_needed) {
1671                         av_assert0(ist->decoding_needed);
1672                         switch(ost->st->codec->codec_type) {
1673                         case AVMEDIA_TYPE_AUDIO:
1674                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1675                             break;
1676                         case AVMEDIA_TYPE_VIDEO:
1677 #if CONFIG_AVFILTER
1678                             if (ist->picref->video)
1679                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1680 #endif
1681                             do_video_out(os, ost, ist, &picture, &frame_size);
1682                             if (vstats_filename && frame_size)
1683                                 do_video_stats(os, ost, frame_size);
1684                             break;
1685                         case AVMEDIA_TYPE_SUBTITLE:
1686                             do_subtitle_out(os, ost, ist, &subtitle,
1687                                             pkt->pts);
1688                             break;
1689                         default:
1690                             abort();
1691                         }
1692                     } else {
1693                         AVFrame avframe; //FIXME/XXX remove this
1694                         AVPacket opkt;
1695                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1696
1697                         av_init_packet(&opkt);
1698
1699                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1700                             continue;
1701
1702                         /* no reencoding needed : output the packet directly */
1703                         /* force the input stream PTS */
1704
1705                         avcodec_get_frame_defaults(&avframe);
1706                         ost->st->codec->coded_frame= &avframe;
1707                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1708
1709                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1710                             audio_size += data_size;
1711                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1712                             video_size += data_size;
1713                             ost->sync_opts++;
1714                         }
1715
1716                         opkt.stream_index= ost->index;
1717                         if(pkt->pts != AV_NOPTS_VALUE)
1718                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1719                         else
1720                             opkt.pts= AV_NOPTS_VALUE;
1721
1722                         if (pkt->dts == AV_NOPTS_VALUE)
1723                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1724                         else
1725                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1726                         opkt.dts -= ost_tb_start_time;
1727
1728                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1729                         opkt.flags= pkt->flags;
1730
1731                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1732                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1733                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1734                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1735                            ) {
1736                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1737                                 opkt.destruct= av_destruct_packet;
1738                         } else {
1739                             opkt.data = data_buf;
1740                             opkt.size = data_size;
1741                         }
1742
1743                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1744                         ost->st->codec->frame_number++;
1745                         ost->frame_number++;
1746                         av_free_packet(&opkt);
1747                     }
1748                 }
1749             }
1750
1751 #if CONFIG_AVFILTER
1752             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1753                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1754             if(ist->picref)
1755                 avfilter_unref_buffer(ist->picref);
1756         }
1757 #endif
1758         av_free(buffer_to_free);
1759         /* XXX: allocate the subtitles in the codec ? */
1760         if (subtitle_to_free) {
1761             avsubtitle_free(subtitle_to_free);
1762             subtitle_to_free = NULL;
1763         }
1764     }
1765  discard_packet:
1766     if (pkt == NULL) {
1767         /* EOF handling */
1768
1769         for(i=0;i<nb_ostreams;i++) {
1770             ost = ost_table[i];
1771             if (ost->source_index == ist_index) {
1772                 AVCodecContext *enc= ost->st->codec;
1773                 os = output_files[ost->file_index];
1774
1775                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1776                     continue;
1777                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1778                     continue;
1779
1780                 if (ost->encoding_needed) {
1781                     for(;;) {
1782                         AVPacket pkt;
1783                         int fifo_bytes;
1784                         av_init_packet(&pkt);
1785                         pkt.stream_index= ost->index;
1786
1787                         switch(ost->st->codec->codec_type) {
1788                         case AVMEDIA_TYPE_AUDIO:
1789                             fifo_bytes = av_fifo_size(ost->fifo);
1790                             ret = 0;
1791                             /* encode any samples remaining in fifo */
1792                             if (fifo_bytes > 0) {
1793                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1794                                 int fs_tmp = enc->frame_size;
1795
1796                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1797                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1798                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1799                                 } else { /* pad */
1800                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1801                                     if (allocated_audio_buf_size < frame_bytes)
1802                                         ffmpeg_exit(1);
1803                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1804                                 }
1805
1806                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1807                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1808                                                           ost->st->time_base.num, enc->sample_rate);
1809                                 enc->frame_size = fs_tmp;
1810                             }
1811                             if(ret <= 0) {
1812                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1813                             }
1814                             if (ret < 0) {
1815                                 fprintf(stderr, "Audio encoding failed\n");
1816                                 ffmpeg_exit(1);
1817                             }
1818                             audio_size += ret;
1819                             pkt.flags |= AV_PKT_FLAG_KEY;
1820                             break;
1821                         case AVMEDIA_TYPE_VIDEO:
1822                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1823                             if (ret < 0) {
1824                                 fprintf(stderr, "Video encoding failed\n");
1825                                 ffmpeg_exit(1);
1826                             }
1827                             video_size += ret;
1828                             if(enc->coded_frame && enc->coded_frame->key_frame)
1829                                 pkt.flags |= AV_PKT_FLAG_KEY;
1830                             if (ost->logfile && enc->stats_out) {
1831                                 fprintf(ost->logfile, "%s", enc->stats_out);
1832                             }
1833                             break;
1834                         default:
1835                             ret=-1;
1836                         }
1837
1838                         if(ret<=0)
1839                             break;
1840                         pkt.data= bit_buffer;
1841                         pkt.size= ret;
1842                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1843                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1844                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1845                     }
1846                 }
1847             }
1848         }
1849     }
1850
1851     return 0;
1852  fail_decode:
1853     return -1;
1854 }
1855
1856 static void print_sdp(AVFormatContext **avc, int n)
1857 {
1858     char sdp[2048];
1859
1860     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1861     printf("SDP:\n%s\n", sdp);
1862     fflush(stdout);
1863 }
1864
1865 static int copy_chapters(int infile, int outfile)
1866 {
1867     AVFormatContext *is = input_files[infile];
1868     AVFormatContext *os = output_files[outfile];
1869     int i;
1870
1871     for (i = 0; i < is->nb_chapters; i++) {
1872         AVChapter *in_ch = is->chapters[i], *out_ch;
1873         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1874                                       AV_TIME_BASE_Q, in_ch->time_base);
1875         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1876                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1877
1878
1879         if (in_ch->end < ts_off)
1880             continue;
1881         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1882             break;
1883
1884         out_ch = av_mallocz(sizeof(AVChapter));
1885         if (!out_ch)
1886             return AVERROR(ENOMEM);
1887
1888         out_ch->id        = in_ch->id;
1889         out_ch->time_base = in_ch->time_base;
1890         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1891         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1892
1893         if (metadata_chapters_autocopy)
1894             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1895
1896         os->nb_chapters++;
1897         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1898         if (!os->chapters)
1899             return AVERROR(ENOMEM);
1900         os->chapters[os->nb_chapters - 1] = out_ch;
1901     }
1902     return 0;
1903 }
1904
1905 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1906                                     AVCodecContext *avctx)
1907 {
1908     char *p;
1909     int n = 1, i;
1910     int64_t t;
1911
1912     for (p = kf; *p; p++)
1913         if (*p == ',')
1914             n++;
1915     ost->forced_kf_count = n;
1916     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1917     if (!ost->forced_kf_pts) {
1918         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1919         ffmpeg_exit(1);
1920     }
1921     for (i = 0; i < n; i++) {
1922         p = i ? strchr(p, ',') + 1 : kf;
1923         t = parse_time_or_die("force_key_frames", p, 1);
1924         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1925     }
1926 }
1927
1928 /*
1929  * The following code is the main loop of the file converter
1930  */
1931 static int transcode(AVFormatContext **output_files,
1932                      int nb_output_files,
1933                      AVFormatContext **input_files,
1934                      int nb_input_files,
1935                      AVStreamMap *stream_maps, int nb_stream_maps)
1936 {
1937     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1938     AVFormatContext *is, *os;
1939     AVCodecContext *codec, *icodec;
1940     AVOutputStream *ost, **ost_table = NULL;
1941     AVInputStream *ist, **ist_table = NULL;
1942     AVInputFile *file_table;
1943     char error[1024];
1944     int key;
1945     int want_sdp = 1;
1946     uint8_t no_packet[MAX_FILES]={0};
1947     int no_packet_count=0;
1948
1949     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1950     if (!file_table)
1951         goto fail;
1952
1953     /* input stream init */
1954     j = 0;
1955     for(i=0;i<nb_input_files;i++) {
1956         is = input_files[i];
1957         file_table[i].ist_index = j;
1958         file_table[i].nb_streams = is->nb_streams;
1959         j += is->nb_streams;
1960     }
1961     nb_istreams = j;
1962
1963     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1964     if (!ist_table)
1965         goto fail;
1966
1967     for(i=0;i<nb_istreams;i++) {
1968         ist = av_mallocz(sizeof(AVInputStream));
1969         if (!ist)
1970             goto fail;
1971         ist_table[i] = ist;
1972     }
1973     j = 0;
1974     for(i=0;i<nb_input_files;i++) {
1975         is = input_files[i];
1976         for(k=0;k<is->nb_streams;k++) {
1977             ist = ist_table[j++];
1978             ist->st = is->streams[k];
1979             ist->file_index = i;
1980             ist->index = k;
1981             ist->discard = 1; /* the stream is discarded by default
1982                                  (changed later) */
1983
1984             if (rate_emu) {
1985                 ist->start = av_gettime();
1986             }
1987         }
1988     }
1989
1990     /* output stream init */
1991     nb_ostreams = 0;
1992     for(i=0;i<nb_output_files;i++) {
1993         os = output_files[i];
1994         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1995             dump_format(output_files[i], i, output_files[i]->filename, 1);
1996             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1997             ret = AVERROR(EINVAL);
1998             goto fail;
1999         }
2000         nb_ostreams += os->nb_streams;
2001     }
2002     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2003         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2004         ret = AVERROR(EINVAL);
2005         goto fail;
2006     }
2007
2008     /* Sanity check the mapping args -- do the input files & streams exist? */
2009     for(i=0;i<nb_stream_maps;i++) {
2010         int fi = stream_maps[i].file_index;
2011         int si = stream_maps[i].stream_index;
2012
2013         if (fi < 0 || fi > nb_input_files - 1 ||
2014             si < 0 || si > file_table[fi].nb_streams - 1) {
2015             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2016             ret = AVERROR(EINVAL);
2017             goto fail;
2018         }
2019         fi = stream_maps[i].sync_file_index;
2020         si = stream_maps[i].sync_stream_index;
2021         if (fi < 0 || fi > nb_input_files - 1 ||
2022             si < 0 || si > file_table[fi].nb_streams - 1) {
2023             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2024             ret = AVERROR(EINVAL);
2025             goto fail;
2026         }
2027     }
2028
2029     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2030     if (!ost_table)
2031         goto fail;
2032     n = 0;
2033     for(k=0;k<nb_output_files;k++) {
2034         os = output_files[k];
2035         for(i=0;i<os->nb_streams;i++,n++) {
2036             int found;
2037             ost = ost_table[n] = output_streams_for_file[k][i];
2038             ost->st = os->streams[i];
2039             if (nb_stream_maps > 0) {
2040                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2041                     stream_maps[n].stream_index;
2042
2043                 /* Sanity check that the stream types match */
2044                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2045                     int i= ost->file_index;
2046                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2047                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2048                         stream_maps[n].file_index, stream_maps[n].stream_index,
2049                         ost->file_index, ost->index);
2050                     ffmpeg_exit(1);
2051                 }
2052
2053             } else {
2054                 int best_nb_frames=-1;
2055                 /* get corresponding input stream index : we select the first one with the right type */
2056                 found = 0;
2057                 for(j=0;j<nb_istreams;j++) {
2058                     int skip=0;
2059                     ist = ist_table[j];
2060                     if(opt_programid){
2061                         int pi,si;
2062                         AVFormatContext *f= input_files[ ist->file_index ];
2063                         skip=1;
2064                         for(pi=0; pi<f->nb_programs; pi++){
2065                             AVProgram *p= f->programs[pi];
2066                             if(p->id == opt_programid)
2067                                 for(si=0; si<p->nb_stream_indexes; si++){
2068                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2069                                         skip=0;
2070                                 }
2071                         }
2072                     }
2073                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2074                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2075                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2076                             best_nb_frames= ist->st->codec_info_nb_frames;
2077                             ost->source_index = j;
2078                             found = 1;
2079                         }
2080                     }
2081                 }
2082
2083                 if (!found) {
2084                     if(! opt_programid) {
2085                         /* try again and reuse existing stream */
2086                         for(j=0;j<nb_istreams;j++) {
2087                             ist = ist_table[j];
2088                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2089                                 && ist->st->discard != AVDISCARD_ALL) {
2090                                 ost->source_index = j;
2091                                 found = 1;
2092                             }
2093                         }
2094                     }
2095                     if (!found) {
2096                         int i= ost->file_index;
2097                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2098                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2099                                 ost->file_index, ost->index);
2100                         ffmpeg_exit(1);
2101                     }
2102                 }
2103             }
2104             ist = ist_table[ost->source_index];
2105             ist->discard = 0;
2106             ost->sync_ist = (nb_stream_maps > 0) ?
2107                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2108                          stream_maps[n].sync_stream_index] : ist;
2109         }
2110     }
2111
2112     /* for each output stream, we compute the right encoding parameters */
2113     for(i=0;i<nb_ostreams;i++) {
2114         ost = ost_table[i];
2115         os = output_files[ost->file_index];
2116         ist = ist_table[ost->source_index];
2117
2118         codec = ost->st->codec;
2119         icodec = ist->st->codec;
2120
2121         if (metadata_streams_autocopy)
2122             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2123                              AV_METADATA_DONT_OVERWRITE);
2124
2125         ost->st->disposition = ist->st->disposition;
2126         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2127         codec->chroma_sample_location = icodec->chroma_sample_location;
2128
2129         if (ost->st->stream_copy) {
2130             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2131
2132             if (extra_size > INT_MAX)
2133                 goto fail;
2134
2135             /* if stream_copy is selected, no need to decode or encode */
2136             codec->codec_id = icodec->codec_id;
2137             codec->codec_type = icodec->codec_type;
2138
2139             if(!codec->codec_tag){
2140                 if(   !os->oformat->codec_tag
2141                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2142                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2143                     codec->codec_tag = icodec->codec_tag;
2144             }
2145
2146             codec->bit_rate = icodec->bit_rate;
2147             codec->rc_max_rate    = icodec->rc_max_rate;
2148             codec->rc_buffer_size = icodec->rc_buffer_size;
2149             codec->extradata= av_mallocz(extra_size);
2150             if (!codec->extradata)
2151                 goto fail;
2152             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2153             codec->extradata_size= icodec->extradata_size;
2154             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){
2155                 codec->time_base = icodec->time_base;
2156                 codec->time_base.num *= icodec->ticks_per_frame;
2157                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2158                           codec->time_base.num, codec->time_base.den, INT_MAX);
2159             }else
2160                 codec->time_base = ist->st->time_base;
2161             switch(codec->codec_type) {
2162             case AVMEDIA_TYPE_AUDIO:
2163                 if(audio_volume != 256) {
2164                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2165                     ffmpeg_exit(1);
2166                 }
2167                 codec->channel_layout = icodec->channel_layout;
2168                 codec->sample_rate = icodec->sample_rate;
2169                 codec->channels = icodec->channels;
2170                 codec->frame_size = icodec->frame_size;
2171                 codec->block_align= icodec->block_align;
2172                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2173                     codec->block_align= 0;
2174                 if(codec->codec_id == CODEC_ID_AC3)
2175                     codec->block_align= 0;
2176                 break;
2177             case AVMEDIA_TYPE_VIDEO:
2178                 codec->pix_fmt = icodec->pix_fmt;
2179                 codec->width = icodec->width;
2180                 codec->height = icodec->height;
2181                 codec->has_b_frames = icodec->has_b_frames;
2182                 break;
2183             case AVMEDIA_TYPE_SUBTITLE:
2184                 codec->width = icodec->width;
2185                 codec->height = icodec->height;
2186                 break;
2187             default:
2188                 abort();
2189             }
2190         } else {
2191             switch(codec->codec_type) {
2192             case AVMEDIA_TYPE_AUDIO:
2193                 ost->fifo= av_fifo_alloc(1024);
2194                 if(!ost->fifo)
2195                     goto fail;
2196                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2197                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2198                 icodec->request_channels = codec->channels;
2199                 ist->decoding_needed = 1;
2200                 ost->encoding_needed = 1;
2201                 ost->resample_sample_fmt  = icodec->sample_fmt;
2202                 ost->resample_sample_rate = icodec->sample_rate;
2203                 ost->resample_channels    = icodec->channels;
2204                 break;
2205             case AVMEDIA_TYPE_VIDEO:
2206                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2207                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2208                     ffmpeg_exit(1);
2209                 }
2210                 ost->video_resample = (codec->width != icodec->width   ||
2211                                        codec->height != icodec->height ||
2212                         (codec->pix_fmt != icodec->pix_fmt));
2213                 if (ost->video_resample) {
2214 #if !CONFIG_AVFILTER
2215                     avcodec_get_frame_defaults(&ost->pict_tmp);
2216                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2217                                          codec->width, codec->height)) {
2218                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2219                         ffmpeg_exit(1);
2220                     }
2221                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2222                     ost->img_resample_ctx = sws_getContext(
2223                         icodec->width,
2224                         icodec->height,
2225                             icodec->pix_fmt,
2226                             codec->width,
2227                             codec->height,
2228                             codec->pix_fmt,
2229                             sws_flags, NULL, NULL, NULL);
2230                     if (ost->img_resample_ctx == NULL) {
2231                         fprintf(stderr, "Cannot get resampling context\n");
2232                         ffmpeg_exit(1);
2233                     }
2234
2235                     ost->original_height = icodec->height;
2236                     ost->original_width  = icodec->width;
2237 #endif
2238                     codec->bits_per_raw_sample= 0;
2239                 }
2240                 ost->resample_height = icodec->height;
2241                 ost->resample_width  = icodec->width;
2242                 ost->resample_pix_fmt= icodec->pix_fmt;
2243                 ost->encoding_needed = 1;
2244                 ist->decoding_needed = 1;
2245
2246 #if CONFIG_AVFILTER
2247                 if (configure_filters(ist, ost)) {
2248                     fprintf(stderr, "Error opening filters!\n");
2249                     exit(1);
2250                 }
2251 #endif
2252                 break;
2253             case AVMEDIA_TYPE_SUBTITLE:
2254                 ost->encoding_needed = 1;
2255                 ist->decoding_needed = 1;
2256                 break;
2257             default:
2258                 abort();
2259                 break;
2260             }
2261             /* two pass mode */
2262             if (ost->encoding_needed &&
2263                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2264                 char logfilename[1024];
2265                 FILE *f;
2266
2267                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2268                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2269                          i);
2270                 if (codec->flags & CODEC_FLAG_PASS1) {
2271                     f = fopen(logfilename, "wb");
2272                     if (!f) {
2273                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2274                         ffmpeg_exit(1);
2275                     }
2276                     ost->logfile = f;
2277                 } else {
2278                     char  *logbuffer;
2279                     size_t logbuffer_size;
2280                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2281                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2282                         ffmpeg_exit(1);
2283                     }
2284                     codec->stats_in = logbuffer;
2285                 }
2286             }
2287         }
2288         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2289             int size= codec->width * codec->height;
2290             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2291         }
2292     }
2293
2294     if (!bit_buffer)
2295         bit_buffer = av_malloc(bit_buffer_size);
2296     if (!bit_buffer) {
2297         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2298                 bit_buffer_size);
2299         ret = AVERROR(ENOMEM);
2300         goto fail;
2301     }
2302
2303     /* open each encoder */
2304     for(i=0;i<nb_ostreams;i++) {
2305         ost = ost_table[i];
2306         if (ost->encoding_needed) {
2307             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2308             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2309             if (!codec)
2310                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2311             if (!codec) {
2312                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2313                          ost->st->codec->codec_id, ost->file_index, ost->index);
2314                 ret = AVERROR(EINVAL);
2315                 goto dump_format;
2316             }
2317             if (dec->subtitle_header) {
2318                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2319                 if (!ost->st->codec->subtitle_header) {
2320                     ret = AVERROR(ENOMEM);
2321                     goto dump_format;
2322                 }
2323                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2324                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2325             }
2326             if (avcodec_open(ost->st->codec, codec) < 0) {
2327                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2328                         ost->file_index, ost->index);
2329                 ret = AVERROR(EINVAL);
2330                 goto dump_format;
2331             }
2332             extra_size += ost->st->codec->extradata_size;
2333         }
2334     }
2335
2336     /* open each decoder */
2337     for(i=0;i<nb_istreams;i++) {
2338         ist = ist_table[i];
2339         if (ist->decoding_needed) {
2340             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2341             if (!codec)
2342                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2343             if (!codec) {
2344                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2345                         ist->st->codec->codec_id, ist->file_index, ist->index);
2346                 ret = AVERROR(EINVAL);
2347                 goto dump_format;
2348             }
2349             if (avcodec_open(ist->st->codec, codec) < 0) {
2350                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2351                         ist->file_index, ist->index);
2352                 ret = AVERROR(EINVAL);
2353                 goto dump_format;
2354             }
2355             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2356             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2357         }
2358     }
2359
2360     /* init pts */
2361     for(i=0;i<nb_istreams;i++) {
2362         AVStream *st;
2363         ist = ist_table[i];
2364         st= ist->st;
2365         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2366         ist->next_pts = AV_NOPTS_VALUE;
2367         init_pts_correction(&ist->pts_ctx);
2368         ist->is_start = 1;
2369     }
2370
2371     /* set meta data information from input file if required */
2372     for (i=0;i<nb_meta_data_maps;i++) {
2373         AVFormatContext *files[2];
2374         AVMetadata      **meta[2];
2375         int j;
2376
2377 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2378         if ((index) < 0 || (index) >= (nb_elems)) {\
2379             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2380                      (desc), (index));\
2381             ret = AVERROR(EINVAL);\
2382             goto dump_format;\
2383         }
2384
2385         int out_file_index = meta_data_maps[i][0].file;
2386         int in_file_index = meta_data_maps[i][1].file;
2387         if (in_file_index < 0 || out_file_index < 0)
2388             continue;
2389         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2390         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2391
2392         files[0] = output_files[out_file_index];
2393         files[1] = input_files[in_file_index];
2394
2395         for (j = 0; j < 2; j++) {
2396             AVMetaDataMap *map = &meta_data_maps[i][j];
2397
2398             switch (map->type) {
2399             case 'g':
2400                 meta[j] = &files[j]->metadata;
2401                 break;
2402             case 's':
2403                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2404                 meta[j] = &files[j]->streams[map->index]->metadata;
2405                 break;
2406             case 'c':
2407                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2408                 meta[j] = &files[j]->chapters[map->index]->metadata;
2409                 break;
2410             case 'p':
2411                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2412                 meta[j] = &files[j]->programs[map->index]->metadata;
2413                 break;
2414             }
2415         }
2416
2417         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2418     }
2419
2420     /* copy global metadata by default */
2421     if (metadata_global_autocopy) {
2422
2423         for (i = 0; i < nb_output_files; i++)
2424             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2425                              AV_METADATA_DONT_OVERWRITE);
2426     }
2427
2428     /* copy chapters according to chapter maps */
2429     for (i = 0; i < nb_chapter_maps; i++) {
2430         int infile  = chapter_maps[i].in_file;
2431         int outfile = chapter_maps[i].out_file;
2432
2433         if (infile < 0 || outfile < 0)
2434             continue;
2435         if (infile >= nb_input_files) {
2436             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2437             ret = AVERROR(EINVAL);
2438             goto dump_format;
2439         }
2440         if (outfile >= nb_output_files) {
2441             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2442             ret = AVERROR(EINVAL);
2443             goto dump_format;
2444         }
2445         copy_chapters(infile, outfile);
2446     }
2447
2448     /* copy chapters from the first input file that has them*/
2449     if (!nb_chapter_maps)
2450         for (i = 0; i < nb_input_files; i++) {
2451             if (!input_files[i]->nb_chapters)
2452                 continue;
2453
2454             for (j = 0; j < nb_output_files; j++)
2455                 if ((ret = copy_chapters(i, j)) < 0)
2456                     goto dump_format;
2457             break;
2458         }
2459
2460     /* open files and write file headers */
2461     for(i=0;i<nb_output_files;i++) {
2462         os = output_files[i];
2463         if (av_write_header(os) < 0) {
2464             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2465             ret = AVERROR(EINVAL);
2466             goto dump_format;
2467         }
2468         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2469             want_sdp = 0;
2470         }
2471     }
2472
2473  dump_format:
2474     /* dump the file output parameters - cannot be done before in case
2475        of stream copy */
2476     for(i=0;i<nb_output_files;i++) {
2477         dump_format(output_files[i], i, output_files[i]->filename, 1);
2478     }
2479
2480     /* dump the stream mapping */
2481     if (verbose >= 0) {
2482         fprintf(stderr, "Stream mapping:\n");
2483         for(i=0;i<nb_ostreams;i++) {
2484             ost = ost_table[i];
2485             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2486                     ist_table[ost->source_index]->file_index,
2487                     ist_table[ost->source_index]->index,
2488                     ost->file_index,
2489                     ost->index);
2490             if (ost->sync_ist != ist_table[ost->source_index])
2491                 fprintf(stderr, " [sync #%d.%d]",
2492                         ost->sync_ist->file_index,
2493                         ost->sync_ist->index);
2494             fprintf(stderr, "\n");
2495         }
2496     }
2497
2498     if (ret) {
2499         fprintf(stderr, "%s\n", error);
2500         goto fail;
2501     }
2502
2503     if (want_sdp) {
2504         print_sdp(output_files, nb_output_files);
2505     }
2506
2507     if (!using_stdin && verbose >= 0) {
2508         fprintf(stderr, "Press [q] to stop encoding\n");
2509         url_set_interrupt_cb(decode_interrupt_cb);
2510     }
2511     term_init();
2512
2513     timer_start = av_gettime();
2514
2515     for(; received_sigterm == 0;) {
2516         int file_index, ist_index;
2517         AVPacket pkt;
2518         double ipts_min;
2519         double opts_min;
2520
2521     redo:
2522         ipts_min= 1e100;
2523         opts_min= 1e100;
2524         /* if 'q' pressed, exits */
2525         if (!using_stdin) {
2526             if (q_pressed)
2527                 break;
2528             /* read_key() returns 0 on EOF */
2529             key = read_key();
2530             if (key == 'q')
2531                 break;
2532         }
2533
2534         /* select the stream that we must read now by looking at the
2535            smallest output pts */
2536         file_index = -1;
2537         for(i=0;i<nb_ostreams;i++) {
2538             double ipts, opts;
2539             ost = ost_table[i];
2540             os = output_files[ost->file_index];
2541             ist = ist_table[ost->source_index];
2542             if(ist->is_past_recording_time || no_packet[ist->file_index])
2543                 continue;
2544                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2545             ipts = (double)ist->pts;
2546             if (!file_table[ist->file_index].eof_reached){
2547                 if(ipts < ipts_min) {
2548                     ipts_min = ipts;
2549                     if(input_sync ) file_index = ist->file_index;
2550                 }
2551                 if(opts < opts_min) {
2552                     opts_min = opts;
2553                     if(!input_sync) file_index = ist->file_index;
2554                 }
2555             }
2556             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2557                 file_index= -1;
2558                 break;
2559             }
2560         }
2561         /* if none, if is finished */
2562         if (file_index < 0) {
2563             if(no_packet_count){
2564                 no_packet_count=0;
2565                 memset(no_packet, 0, sizeof(no_packet));
2566                 usleep(10000);
2567                 continue;
2568             }
2569             break;
2570         }
2571
2572         /* finish if limit size exhausted */
2573         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2574             break;
2575
2576         /* read a frame from it and output it in the fifo */
2577         is = input_files[file_index];
2578         ret= av_read_frame(is, &pkt);
2579         if(ret == AVERROR(EAGAIN)){
2580             no_packet[file_index]=1;
2581             no_packet_count++;
2582             continue;
2583         }
2584         if (ret < 0) {
2585             file_table[file_index].eof_reached = 1;
2586             if (opt_shortest)
2587                 break;
2588             else
2589                 continue;
2590         }
2591
2592         no_packet_count=0;
2593         memset(no_packet, 0, sizeof(no_packet));
2594
2595         if (do_pkt_dump) {
2596             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2597         }
2598         /* the following test is needed in case new streams appear
2599            dynamically in stream : we ignore them */
2600         if (pkt.stream_index >= file_table[file_index].nb_streams)
2601             goto discard_packet;
2602         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2603         ist = ist_table[ist_index];
2604         if (ist->discard)
2605             goto discard_packet;
2606
2607         if (pkt.dts != AV_NOPTS_VALUE)
2608             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2609         if (pkt.pts != AV_NOPTS_VALUE)
2610             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2611
2612         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2613             && input_files_ts_scale[file_index][pkt.stream_index]){
2614             if(pkt.pts != AV_NOPTS_VALUE)
2615                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2616             if(pkt.dts != AV_NOPTS_VALUE)
2617                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2618         }
2619
2620 //        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);
2621         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2622             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2623             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2624             int64_t delta= pkt_dts - ist->next_pts;
2625             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2626                 input_files_ts_offset[ist->file_index]-= delta;
2627                 if (verbose > 2)
2628                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2629                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2630                 if(pkt.pts != AV_NOPTS_VALUE)
2631                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2632             }
2633         }
2634
2635         /* finish if recording time exhausted */
2636         if (recording_time != INT64_MAX &&
2637             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2638             ist->is_past_recording_time = 1;
2639             goto discard_packet;
2640         }
2641
2642         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2643         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2644
2645             if (verbose >= 0)
2646                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2647                         ist->file_index, ist->index);
2648             if (exit_on_error)
2649                 ffmpeg_exit(1);
2650             av_free_packet(&pkt);
2651             goto redo;
2652         }
2653
2654     discard_packet:
2655         av_free_packet(&pkt);
2656
2657         /* dump report by using the output first video and audio streams */
2658         print_report(output_files, ost_table, nb_ostreams, 0);
2659     }
2660
2661     /* at the end of stream, we must flush the decoder buffers */
2662     for(i=0;i<nb_istreams;i++) {
2663         ist = ist_table[i];
2664         if (ist->decoding_needed) {
2665             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2666         }
2667     }
2668
2669     term_exit();
2670
2671     /* write the trailer if needed and close file */
2672     for(i=0;i<nb_output_files;i++) {
2673         os = output_files[i];
2674         av_write_trailer(os);
2675     }
2676
2677     /* dump report by using the first video and audio streams */
2678     print_report(output_files, ost_table, nb_ostreams, 1);
2679
2680     /* close each encoder */
2681     for(i=0;i<nb_ostreams;i++) {
2682         ost = ost_table[i];
2683         if (ost->encoding_needed) {
2684             av_freep(&ost->st->codec->stats_in);
2685             avcodec_close(ost->st->codec);
2686         }
2687     }
2688
2689     /* close each decoder */
2690     for(i=0;i<nb_istreams;i++) {
2691         ist = ist_table[i];
2692         if (ist->decoding_needed) {
2693             avcodec_close(ist->st->codec);
2694         }
2695     }
2696 #if CONFIG_AVFILTER
2697     avfilter_graph_free(&graph);
2698 #endif
2699
2700     /* finished ! */
2701     ret = 0;
2702
2703  fail:
2704     av_freep(&bit_buffer);
2705     av_free(file_table);
2706
2707     if (ist_table) {
2708         for(i=0;i<nb_istreams;i++) {
2709             ist = ist_table[i];
2710             av_free(ist);
2711         }
2712         av_free(ist_table);
2713     }
2714     if (ost_table) {
2715         for(i=0;i<nb_ostreams;i++) {
2716             ost = ost_table[i];
2717             if (ost) {
2718                 if (ost->st->stream_copy)
2719                     av_freep(&ost->st->codec->extradata);
2720                 if (ost->logfile) {
2721                     fclose(ost->logfile);
2722                     ost->logfile = NULL;
2723                 }
2724                 av_fifo_free(ost->fifo); /* works even if fifo is not
2725                                              initialized but set to zero */
2726                 av_freep(&ost->st->codec->subtitle_header);
2727                 av_free(ost->pict_tmp.data[0]);
2728                 av_free(ost->forced_kf_pts);
2729                 if (ost->video_resample)
2730                     sws_freeContext(ost->img_resample_ctx);
2731                 if (ost->resample)
2732                     audio_resample_close(ost->resample);
2733                 if (ost->reformat_ctx)
2734                     av_audio_convert_free(ost->reformat_ctx);
2735                 av_free(ost);
2736             }
2737         }
2738         av_free(ost_table);
2739     }
2740     return ret;
2741 }
2742
2743 static void opt_format(const char *arg)
2744 {
2745     last_asked_format = arg;
2746 }
2747
2748 static void opt_video_rc_override_string(const char *arg)
2749 {
2750     video_rc_override_string = arg;
2751 }
2752
2753 static int opt_me_threshold(const char *opt, const char *arg)
2754 {
2755     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2756     return 0;
2757 }
2758
2759 static int opt_verbose(const char *opt, const char *arg)
2760 {
2761     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2762     return 0;
2763 }
2764
2765 static int opt_frame_rate(const char *opt, const char *arg)
2766 {
2767     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2768         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2769         ffmpeg_exit(1);
2770     }
2771     return 0;
2772 }
2773
2774 static int opt_bitrate(const char *opt, const char *arg)
2775 {
2776     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2777
2778     opt_default(opt, arg);
2779
2780     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2781         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2782
2783     return 0;
2784 }
2785
2786 static int opt_frame_crop(const char *opt, const char *arg)
2787 {
2788     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2789     return AVERROR(EINVAL);
2790 }
2791
2792 static void opt_frame_size(const char *arg)
2793 {
2794     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2795         fprintf(stderr, "Incorrect frame size\n");
2796         ffmpeg_exit(1);
2797     }
2798 }
2799
2800 static int opt_pad(const char *opt, const char *arg) {
2801     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2802     return -1;
2803 }
2804
2805 static void opt_frame_pix_fmt(const char *arg)
2806 {
2807     if (strcmp(arg, "list")) {
2808         frame_pix_fmt = av_get_pix_fmt(arg);
2809         if (frame_pix_fmt == PIX_FMT_NONE) {
2810             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2811             ffmpeg_exit(1);
2812         }
2813     } else {
2814         show_pix_fmts();
2815         ffmpeg_exit(0);
2816     }
2817 }
2818
2819 static void opt_frame_aspect_ratio(const char *arg)
2820 {
2821     int x = 0, y = 0;
2822     double ar = 0;
2823     const char *p;
2824     char *end;
2825
2826     p = strchr(arg, ':');
2827     if (p) {
2828         x = strtol(arg, &end, 10);
2829         if (end == p)
2830             y = strtol(end+1, &end, 10);
2831         if (x > 0 && y > 0)
2832             ar = (double)x / (double)y;
2833     } else
2834         ar = strtod(arg, NULL);
2835
2836     if (!ar) {
2837         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2838         ffmpeg_exit(1);
2839     }
2840     frame_aspect_ratio = ar;
2841
2842     x = vfilters ? strlen(vfilters) : 0;
2843     vfilters = av_realloc(vfilters, x+100);
2844     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2845 }
2846
2847 static int opt_metadata(const char *opt, const char *arg)
2848 {
2849     char *mid= strchr(arg, '=');
2850
2851     if(!mid){
2852         fprintf(stderr, "Missing =\n");
2853         ffmpeg_exit(1);
2854     }
2855     *mid++= 0;
2856
2857     av_metadata_set2(&metadata, arg, mid, 0);
2858
2859     return 0;
2860 }
2861
2862 static void opt_qscale(const char *arg)
2863 {
2864     video_qscale = atof(arg);
2865     if (video_qscale <= 0 ||
2866         video_qscale > 255) {
2867         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2868         ffmpeg_exit(1);
2869     }
2870 }
2871
2872 static void opt_top_field_first(const char *arg)
2873 {
2874     top_field_first= atoi(arg);
2875 }
2876
2877 static int opt_thread_count(const char *opt, const char *arg)
2878 {
2879     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2880 #if !HAVE_THREADS
2881     if (verbose >= 0)
2882         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2883 #endif
2884     return 0;
2885 }
2886
2887 static void opt_audio_sample_fmt(const char *arg)
2888 {
2889     if (strcmp(arg, "list")) {
2890         audio_sample_fmt = av_get_sample_fmt(arg);
2891         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2892             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2893             ffmpeg_exit(1);
2894         }
2895     } else {
2896         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2897         ffmpeg_exit(0);
2898     }
2899 }
2900
2901 static int opt_audio_rate(const char *opt, const char *arg)
2902 {
2903     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2904     return 0;
2905 }
2906
2907 static int opt_audio_channels(const char *opt, const char *arg)
2908 {
2909     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2910     return 0;
2911 }
2912
2913 static void opt_video_channel(const char *arg)
2914 {
2915     video_channel = strtol(arg, NULL, 0);
2916 }
2917
2918 static void opt_video_standard(const char *arg)
2919 {
2920     video_standard = av_strdup(arg);
2921 }
2922
2923 static void opt_codec(int *pstream_copy, char **pcodec_name,
2924                       int codec_type, const char *arg)
2925 {
2926     av_freep(pcodec_name);
2927     if (!strcmp(arg, "copy")) {
2928         *pstream_copy = 1;
2929     } else {
2930         *pcodec_name = av_strdup(arg);
2931     }
2932 }
2933
2934 static void opt_audio_codec(const char *arg)
2935 {
2936     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2937 }
2938
2939 static void opt_video_codec(const char *arg)
2940 {
2941     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2942 }
2943
2944 static void opt_subtitle_codec(const char *arg)
2945 {
2946     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2947 }
2948
2949 static int opt_codec_tag(const char *opt, const char *arg)
2950 {
2951     char *tail;
2952     uint32_t *codec_tag;
2953
2954     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2955                 !strcmp(opt, "vtag") ? &video_codec_tag :
2956                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2957     if (!codec_tag)
2958         return -1;
2959
2960     *codec_tag = strtol(arg, &tail, 0);
2961     if (!tail || *tail)
2962         *codec_tag = AV_RL32(arg);
2963
2964     return 0;
2965 }
2966
2967 static void opt_map(const char *arg)
2968 {
2969     AVStreamMap *m;
2970     char *p;
2971
2972     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2973     m = &stream_maps[nb_stream_maps-1];
2974
2975     m->file_index = strtol(arg, &p, 0);
2976     if (*p)
2977         p++;
2978
2979     m->stream_index = strtol(p, &p, 0);
2980     if (*p) {
2981         p++;
2982         m->sync_file_index = strtol(p, &p, 0);
2983         if (*p)
2984             p++;
2985         m->sync_stream_index = strtol(p, &p, 0);
2986     } else {
2987         m->sync_file_index = m->file_index;
2988         m->sync_stream_index = m->stream_index;
2989     }
2990 }
2991
2992 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2993 {
2994     *endptr = arg;
2995     if (*arg == ',') {
2996         *type = *(++arg);
2997         switch (*arg) {
2998         case 'g':
2999             break;
3000         case 's':
3001         case 'c':
3002         case 'p':
3003             *index = strtol(++arg, endptr, 0);
3004             break;
3005         default:
3006             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3007             ffmpeg_exit(1);
3008         }
3009     } else
3010         *type = 'g';
3011 }
3012
3013 static void opt_map_metadata(const char *arg)
3014 {
3015     AVMetaDataMap *m, *m1;
3016     char *p;
3017
3018     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3019                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3020
3021     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3022     m->file = strtol(arg, &p, 0);
3023     parse_meta_type(p, &m->type, &m->index, &p);
3024     if (*p)
3025         p++;
3026
3027     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3028     m1->file = strtol(p, &p, 0);
3029     parse_meta_type(p, &m1->type, &m1->index, &p);
3030
3031     if (m->type == 'g' || m1->type == 'g')
3032         metadata_global_autocopy = 0;
3033     if (m->type == 's' || m1->type == 's')
3034         metadata_streams_autocopy = 0;
3035     if (m->type == 'c' || m1->type == 'c')
3036         metadata_chapters_autocopy = 0;
3037 }
3038
3039 static void opt_map_meta_data(const char *arg)
3040 {
3041     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3042                     "Use -map_metadata instead.\n");
3043     opt_map_metadata(arg);
3044 }
3045
3046 static void opt_map_chapters(const char *arg)
3047 {
3048     AVChapterMap *c;
3049     char *p;
3050
3051     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3052                               nb_chapter_maps + 1);
3053     c = &chapter_maps[nb_chapter_maps - 1];
3054     c->out_file = strtol(arg, &p, 0);
3055     if (*p)
3056         p++;
3057
3058     c->in_file = strtol(p, &p, 0);
3059 }
3060
3061 static void opt_input_ts_scale(const char *arg)
3062 {
3063     unsigned int stream;
3064     double scale;
3065     char *p;
3066
3067     stream = strtol(arg, &p, 0);
3068     if (*p)
3069         p++;
3070     scale= strtod(p, &p);
3071
3072     if(stream >= MAX_STREAMS)
3073         ffmpeg_exit(1);
3074
3075     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);
3076     input_files_ts_scale[nb_input_files][stream]= scale;
3077 }
3078
3079 static int opt_recording_time(const char *opt, const char *arg)
3080 {
3081     recording_time = parse_time_or_die(opt, arg, 1);
3082     return 0;
3083 }
3084
3085 static int opt_start_time(const char *opt, const char *arg)
3086 {
3087     start_time = parse_time_or_die(opt, arg, 1);
3088     return 0;
3089 }
3090
3091 static int opt_recording_timestamp(const char *opt, const char *arg)
3092 {
3093     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3094     return 0;
3095 }
3096
3097 static int opt_input_ts_offset(const char *opt, const char *arg)
3098 {
3099     input_ts_offset = parse_time_or_die(opt, arg, 1);
3100     return 0;
3101 }
3102
3103 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3104 {
3105     const char *codec_string = encoder ? "encoder" : "decoder";
3106     AVCodec *codec;
3107
3108     if(!name)
3109         return CODEC_ID_NONE;
3110     codec = encoder ?
3111         avcodec_find_encoder_by_name(name) :
3112         avcodec_find_decoder_by_name(name);
3113     if(!codec) {
3114         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3115         ffmpeg_exit(1);
3116     }
3117     if(codec->type != type) {
3118         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3119         ffmpeg_exit(1);
3120     }
3121     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3122        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3123         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3124                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3125                 codec_string, codec->name);
3126         codec = encoder ?
3127             avcodec_find_encoder(codec->id) :
3128             avcodec_find_decoder(codec->id);
3129         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3130             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3131                     codec_string, codec->name);
3132         ffmpeg_exit(1);
3133     }
3134     return codec->id;
3135 }
3136
3137 static void opt_input_file(const char *filename)
3138 {
3139     AVFormatContext *ic;
3140     AVFormatParameters params, *ap = &params;
3141     AVInputFormat *file_iformat = NULL;
3142     int err, i, ret, rfps, rfps_base;
3143     int64_t timestamp;
3144
3145     if (last_asked_format) {
3146         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3147             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3148             ffmpeg_exit(1);
3149         }
3150         last_asked_format = NULL;
3151     }
3152
3153     if (!strcmp(filename, "-"))
3154         filename = "pipe:";
3155
3156     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3157                     !strcmp(filename, "/dev/stdin");
3158
3159     /* get default parameters from command line */
3160     ic = avformat_alloc_context();
3161     if (!ic) {
3162         print_error(filename, AVERROR(ENOMEM));
3163         ffmpeg_exit(1);
3164     }
3165
3166     memset(ap, 0, sizeof(*ap));
3167     ap->prealloced_context = 1;
3168     ap->sample_rate = audio_sample_rate;
3169     ap->channels = audio_channels;
3170     ap->time_base.den = frame_rate.num;
3171     ap->time_base.num = frame_rate.den;
3172     ap->width = frame_width;
3173     ap->height = frame_height;
3174     ap->pix_fmt = frame_pix_fmt;
3175    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3176     ap->channel = video_channel;
3177     ap->standard = video_standard;
3178
3179     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3180
3181     ic->video_codec_id   =
3182         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3183                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3184     ic->audio_codec_id   =
3185         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3186                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3187     ic->subtitle_codec_id=
3188         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3189                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3190     ic->flags |= AVFMT_FLAG_NONBLOCK;
3191
3192     /* open the input file with generic libav function */
3193     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3194     if (err < 0) {
3195         print_error(filename, err);
3196         ffmpeg_exit(1);
3197     }
3198     if(opt_programid) {
3199         int i, j;
3200         int found=0;
3201         for(i=0; i<ic->nb_streams; i++){
3202             ic->streams[i]->discard= AVDISCARD_ALL;
3203         }
3204         for(i=0; i<ic->nb_programs; i++){
3205             AVProgram *p= ic->programs[i];
3206             if(p->id != opt_programid){
3207                 p->discard = AVDISCARD_ALL;
3208             }else{
3209                 found=1;
3210                 for(j=0; j<p->nb_stream_indexes; j++){
3211                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3212                 }
3213             }
3214         }
3215         if(!found){
3216             fprintf(stderr, "Specified program id not found\n");
3217             ffmpeg_exit(1);
3218         }
3219         opt_programid=0;
3220     }
3221
3222     ic->loop_input = loop_input;
3223
3224     /* If not enough info to get the stream parameters, we decode the
3225        first frames to get it. (used in mpeg case for example) */
3226     ret = av_find_stream_info(ic);
3227     if (ret < 0 && verbose >= 0) {
3228         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3229         av_close_input_file(ic);
3230         ffmpeg_exit(1);
3231     }
3232
3233     timestamp = start_time;
3234     /* add the stream start time */
3235     if (ic->start_time != AV_NOPTS_VALUE)
3236         timestamp += ic->start_time;
3237
3238     /* if seeking requested, we execute it */
3239     if (start_time != 0) {
3240         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3241         if (ret < 0) {
3242             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3243                     filename, (double)timestamp / AV_TIME_BASE);
3244         }
3245         /* reset seek info */
3246         start_time = 0;
3247     }
3248
3249     /* update the current parameters so that they match the one of the input stream */
3250     for(i=0;i<ic->nb_streams;i++) {
3251         AVStream *st = ic->streams[i];
3252         AVCodecContext *dec = st->codec;
3253         avcodec_thread_init(dec, thread_count);
3254         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3255         switch (dec->codec_type) {
3256         case AVMEDIA_TYPE_AUDIO:
3257             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3258             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]);
3259             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3260             channel_layout    = dec->channel_layout;
3261             audio_channels    = dec->channels;
3262             audio_sample_rate = dec->sample_rate;
3263             audio_sample_fmt  = dec->sample_fmt;
3264             if(audio_disable)
3265                 st->discard= AVDISCARD_ALL;
3266             /* Note that av_find_stream_info can add more streams, and we
3267              * currently have no chance of setting up lowres decoding
3268              * early enough for them. */
3269             if (dec->lowres)
3270                 audio_sample_rate >>= dec->lowres;
3271             break;
3272         case AVMEDIA_TYPE_VIDEO:
3273             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3274             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]);
3275             frame_height = dec->height;
3276             frame_width  = dec->width;
3277             if(ic->streams[i]->sample_aspect_ratio.num)
3278                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3279             else
3280                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3281             frame_aspect_ratio *= (float) dec->width / dec->height;
3282             frame_pix_fmt = dec->pix_fmt;
3283             rfps      = ic->streams[i]->r_frame_rate.num;
3284             rfps_base = ic->streams[i]->r_frame_rate.den;
3285             if (dec->lowres) {
3286                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3287                 frame_height >>= dec->lowres;
3288                 frame_width  >>= dec->lowres;
3289                 dec->height = frame_height;
3290                 dec->width  = frame_width;
3291             }
3292             if(me_threshold)
3293                 dec->debug |= FF_DEBUG_MV;
3294
3295             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3296
3297                 if (verbose >= 0)
3298                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3299                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3300
3301                     (float)rfps / rfps_base, rfps, rfps_base);
3302             }
3303             /* update the current frame rate to match the stream frame rate */
3304             frame_rate.num = rfps;
3305             frame_rate.den = rfps_base;
3306
3307             if(video_disable)
3308                 st->discard= AVDISCARD_ALL;
3309             else if(video_discard)
3310                 st->discard= video_discard;
3311             break;
3312         case AVMEDIA_TYPE_DATA:
3313             break;
3314         case AVMEDIA_TYPE_SUBTITLE:
3315             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3316             if(subtitle_disable)
3317                 st->discard = AVDISCARD_ALL;
3318             break;
3319         case AVMEDIA_TYPE_ATTACHMENT:
3320         case AVMEDIA_TYPE_UNKNOWN:
3321             break;
3322         default:
3323             abort();
3324         }
3325     }
3326
3327     input_files[nb_input_files] = ic;
3328     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3329     /* dump the file content */
3330     if (verbose >= 0)
3331         dump_format(ic, nb_input_files, filename, 0);
3332
3333     nb_input_files++;
3334
3335     video_channel = 0;
3336
3337     av_freep(&video_codec_name);
3338     av_freep(&audio_codec_name);
3339     av_freep(&subtitle_codec_name);
3340 }
3341
3342 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3343                                          int *has_subtitle_ptr)
3344 {
3345     int has_video, has_audio, has_subtitle, i, j;
3346     AVFormatContext *ic;
3347
3348     has_video = 0;
3349     has_audio = 0;
3350     has_subtitle = 0;
3351     for(j=0;j<nb_input_files;j++) {
3352         ic = input_files[j];
3353         for(i=0;i<ic->nb_streams;i++) {
3354             AVCodecContext *enc = ic->streams[i]->codec;
3355             switch(enc->codec_type) {
3356             case AVMEDIA_TYPE_AUDIO:
3357                 has_audio = 1;
3358                 break;
3359             case AVMEDIA_TYPE_VIDEO:
3360                 has_video = 1;
3361                 break;
3362             case AVMEDIA_TYPE_SUBTITLE:
3363                 has_subtitle = 1;
3364                 break;
3365             case AVMEDIA_TYPE_DATA:
3366             case AVMEDIA_TYPE_ATTACHMENT:
3367             case AVMEDIA_TYPE_UNKNOWN:
3368                 break;
3369             default:
3370                 abort();
3371             }
3372         }
3373     }
3374     *has_video_ptr = has_video;
3375     *has_audio_ptr = has_audio;
3376     *has_subtitle_ptr = has_subtitle;
3377 }
3378
3379 static void new_video_stream(AVFormatContext *oc, int file_idx)
3380 {
3381     AVStream *st;
3382     AVOutputStream *ost;
3383     AVCodecContext *video_enc;
3384     enum CodecID codec_id = CODEC_ID_NONE;
3385     AVCodec *codec= NULL;
3386
3387     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3388     if (!st) {
3389         fprintf(stderr, "Could not alloc stream\n");
3390         ffmpeg_exit(1);
3391     }
3392     ost = new_output_stream(oc, file_idx);
3393
3394     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3395     if(!video_stream_copy){
3396         if (video_codec_name) {
3397             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3398                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3399             codec = avcodec_find_encoder_by_name(video_codec_name);
3400             output_codecs[nb_output_codecs-1] = codec;
3401         } else {
3402             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3403             codec = avcodec_find_encoder(codec_id);
3404         }
3405     }
3406
3407     avcodec_get_context_defaults3(st->codec, codec);
3408     ost->bitstream_filters = video_bitstream_filters;
3409     video_bitstream_filters= NULL;
3410
3411     avcodec_thread_init(st->codec, thread_count);
3412
3413     video_enc = st->codec;
3414
3415     if(video_codec_tag)
3416         video_enc->codec_tag= video_codec_tag;
3417
3418     if(   (video_global_header&1)
3419        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3420         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3421         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3422     }
3423     if(video_global_header&2){
3424         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3425         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3426     }
3427
3428     if (video_stream_copy) {
3429         st->stream_copy = 1;
3430         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3431         video_enc->sample_aspect_ratio =
3432         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3433     } else {
3434         const char *p;
3435         int i;
3436         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3437
3438         video_enc->codec_id = codec_id;
3439         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3440
3441         if (codec && codec->supported_framerates && !force_fps)
3442             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3443         video_enc->time_base.den = fps.num;
3444         video_enc->time_base.num = fps.den;
3445
3446         video_enc->width = frame_width;
3447         video_enc->height = frame_height;
3448         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3449         video_enc->pix_fmt = frame_pix_fmt;
3450         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3451
3452         choose_pixel_fmt(st, codec);
3453
3454         if (intra_only)
3455             video_enc->gop_size = 0;
3456         if (video_qscale || same_quality) {
3457             video_enc->flags |= CODEC_FLAG_QSCALE;
3458             video_enc->global_quality=
3459                 st->quality = FF_QP2LAMBDA * video_qscale;
3460         }
3461
3462         if(intra_matrix)
3463             video_enc->intra_matrix = intra_matrix;
3464         if(inter_matrix)
3465             video_enc->inter_matrix = inter_matrix;
3466
3467         p= video_rc_override_string;
3468         for(i=0; p; i++){
3469             int start, end, q;
3470             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3471             if(e!=3){
3472                 fprintf(stderr, "error parsing rc_override\n");
3473                 ffmpeg_exit(1);
3474             }
3475             video_enc->rc_override=
3476                 av_realloc(video_enc->rc_override,
3477                            sizeof(RcOverride)*(i+1));
3478             video_enc->rc_override[i].start_frame= start;
3479             video_enc->rc_override[i].end_frame  = end;
3480             if(q>0){
3481                 video_enc->rc_override[i].qscale= q;
3482                 video_enc->rc_override[i].quality_factor= 1.0;
3483             }
3484             else{
3485                 video_enc->rc_override[i].qscale= 0;
3486                 video_enc->rc_override[i].quality_factor= -q/100.0;
3487             }
3488             p= strchr(p, '/');
3489             if(p) p++;
3490         }
3491         video_enc->rc_override_count=i;
3492         if (!video_enc->rc_initial_buffer_occupancy)
3493             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3494         video_enc->me_threshold= me_threshold;
3495         video_enc->intra_dc_precision= intra_dc_precision - 8;
3496
3497         if (do_psnr)
3498             video_enc->flags|= CODEC_FLAG_PSNR;
3499
3500         /* two pass mode */
3501         if (do_pass) {
3502             if (do_pass == 1) {
3503                 video_enc->flags |= CODEC_FLAG_PASS1;
3504             } else {
3505                 video_enc->flags |= CODEC_FLAG_PASS2;
3506             }
3507         }
3508
3509         if (forced_key_frames)
3510             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3511     }
3512     if (video_language) {
3513         av_metadata_set2(&st->metadata, "language", video_language, 0);
3514         av_freep(&video_language);
3515     }
3516
3517     /* reset some key parameters */
3518     video_disable = 0;
3519     av_freep(&video_codec_name);
3520     av_freep(&forced_key_frames);
3521     video_stream_copy = 0;
3522     frame_pix_fmt = PIX_FMT_NONE;
3523 }
3524
3525 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3526 {
3527     AVStream *st;
3528     AVOutputStream *ost;
3529     AVCodec *codec= NULL;
3530     AVCodecContext *audio_enc;
3531     enum CodecID codec_id = CODEC_ID_NONE;
3532
3533     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3534     if (!st) {
3535         fprintf(stderr, "Could not alloc stream\n");
3536         ffmpeg_exit(1);
3537     }
3538     ost = new_output_stream(oc, file_idx);
3539
3540     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3541     if(!audio_stream_copy){
3542         if (audio_codec_name) {
3543             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3544                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3545             codec = avcodec_find_encoder_by_name(audio_codec_name);
3546             output_codecs[nb_output_codecs-1] = codec;
3547         } else {
3548             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3549             codec = avcodec_find_encoder(codec_id);
3550         }
3551     }
3552
3553     avcodec_get_context_defaults3(st->codec, codec);
3554
3555     ost->bitstream_filters = audio_bitstream_filters;
3556     audio_bitstream_filters= NULL;
3557
3558     avcodec_thread_init(st->codec, thread_count);
3559
3560     audio_enc = st->codec;
3561     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3562
3563     if(audio_codec_tag)
3564         audio_enc->codec_tag= audio_codec_tag;
3565
3566     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3567         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3568         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3569     }
3570     if (audio_stream_copy) {
3571         st->stream_copy = 1;
3572         audio_enc->channels = audio_channels;
3573         audio_enc->sample_rate = audio_sample_rate;
3574     } else {
3575         audio_enc->codec_id = codec_id;
3576         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3577
3578         if (audio_qscale > QSCALE_NONE) {
3579             audio_enc->flags |= CODEC_FLAG_QSCALE;
3580             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3581         }
3582         audio_enc->channels = audio_channels;
3583         audio_enc->sample_fmt = audio_sample_fmt;
3584         audio_enc->sample_rate = audio_sample_rate;
3585         audio_enc->channel_layout = channel_layout;
3586         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3587             audio_enc->channel_layout = 0;
3588         choose_sample_fmt(st, codec);
3589         choose_sample_rate(st, codec);
3590     }
3591     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3592     if (audio_language) {
3593         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3594         av_freep(&audio_language);
3595     }
3596
3597     /* reset some key parameters */
3598     audio_disable = 0;
3599     av_freep(&audio_codec_name);
3600     audio_stream_copy = 0;
3601 }
3602
3603 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3604 {
3605     AVStream *st;
3606     AVOutputStream *ost;
3607     AVCodec *codec=NULL;
3608     AVCodecContext *subtitle_enc;
3609     enum CodecID codec_id = CODEC_ID_NONE;
3610
3611     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3612     if (!st) {
3613         fprintf(stderr, "Could not alloc stream\n");
3614         ffmpeg_exit(1);
3615     }
3616     ost = new_output_stream(oc, file_idx);
3617     subtitle_enc = st->codec;
3618     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3619     if(!subtitle_stream_copy){
3620         if (subtitle_codec_name) {
3621             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3622                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3623             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3624         } else {
3625             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3626             codec = avcodec_find_encoder(codec_id);
3627         }
3628     }
3629     avcodec_get_context_defaults3(st->codec, codec);
3630
3631     ost->bitstream_filters = subtitle_bitstream_filters;
3632     subtitle_bitstream_filters= NULL;
3633
3634     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3635
3636     if(subtitle_codec_tag)
3637         subtitle_enc->codec_tag= subtitle_codec_tag;
3638
3639     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3640         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3641         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3642     }
3643     if (subtitle_stream_copy) {
3644         st->stream_copy = 1;
3645     } else {
3646         subtitle_enc->codec_id = codec_id;
3647         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3648     }
3649
3650     if (subtitle_language) {
3651         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3652         av_freep(&subtitle_language);
3653     }
3654
3655     subtitle_disable = 0;
3656     av_freep(&subtitle_codec_name);
3657     subtitle_stream_copy = 0;
3658 }
3659
3660 static int opt_new_stream(const char *opt, const char *arg)
3661 {
3662     AVFormatContext *oc;
3663     int file_idx = nb_output_files - 1;
3664     if (nb_output_files <= 0) {
3665         fprintf(stderr, "At least one output file must be specified\n");
3666         ffmpeg_exit(1);
3667     }
3668     oc = output_files[file_idx];
3669
3670     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3671     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3672     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3673     else av_assert0(0);