vsrc_buffer: simplify av_vsrc_buffer_add_frame*() interface
[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 "libavutil/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #include "libavformat/ffm.h" // not public API
51
52 #if CONFIG_AVFILTER
53 # include "libavfilter/avcodec.h"
54 # include "libavfilter/avfilter.h"
55 # include "libavfilter/avfiltergraph.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct AVStreamMap {
94     int file_index;
95     int stream_index;
96     int sync_file_index;
97     int sync_stream_index;
98 } AVStreamMap;
99
100 /**
101  * select an input file for an output file
102  */
103 typedef struct AVMetaDataMap {
104     int  file;      //< file index
105     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
106     int  index;     //< stream/chapter/program number
107 } AVMetaDataMap;
108
109 typedef struct AVChapterMap {
110     int in_file;
111     int out_file;
112 } AVChapterMap;
113
114 static const OptionDef options[];
115
116 #define MAX_FILES 100
117 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
118
119 static const char *last_asked_format = NULL;
120 static AVFormatContext *input_files[MAX_FILES];
121 static int64_t input_files_ts_offset[MAX_FILES];
122 static double *input_files_ts_scale[MAX_FILES] = {NULL};
123 static AVCodec **input_codecs = NULL;
124 static int nb_input_files = 0;
125 static int nb_input_codecs = 0;
126 static int nb_input_files_ts_scale[MAX_FILES] = {0};
127
128 static AVFormatContext *output_files[MAX_FILES];
129 static AVCodec **output_codecs = NULL;
130 static int nb_output_files = 0;
131 static int nb_output_codecs = 0;
132
133 static AVStreamMap *stream_maps = NULL;
134 static int nb_stream_maps;
135
136 /* first item specifies output metadata, second is input */
137 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
138 static int nb_meta_data_maps;
139 static int metadata_global_autocopy   = 1;
140 static int metadata_streams_autocopy  = 1;
141 static int metadata_chapters_autocopy = 1;
142
143 static AVChapterMap *chapter_maps = NULL;
144 static int nb_chapter_maps;
145
146 /* indexed by output file stream index */
147 static int *streamid_map = NULL;
148 static int nb_streamid_map = 0;
149
150 static int frame_width  = 0;
151 static int frame_height = 0;
152 static float frame_aspect_ratio = 0;
153 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
154 static int frame_bits_per_raw_sample = 0;
155 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
156 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
157 static AVRational frame_rate;
158 static float video_qscale = 0;
159 static uint16_t *intra_matrix = NULL;
160 static uint16_t *inter_matrix = NULL;
161 static const char *video_rc_override_string=NULL;
162 static int video_disable = 0;
163 static int video_discard = 0;
164 static char *video_codec_name = NULL;
165 static unsigned int video_codec_tag = 0;
166 static char *video_language = NULL;
167 static int same_quality = 0;
168 static int do_deinterlace = 0;
169 static int top_field_first = -1;
170 static int me_threshold = 0;
171 static int intra_dc_precision = 8;
172 static int loop_input = 0;
173 static int loop_output = AVFMT_NOOUTPUTLOOP;
174 static int qp_hist = 0;
175 #if CONFIG_AVFILTER
176 static char *vfilters = NULL;
177 #else
178 static unsigned int sws_flags = SWS_BICUBIC;
179 #endif
180
181 static int intra_only = 0;
182 static int audio_sample_rate = 44100;
183 static int64_t channel_layout = 0;
184 #define QSCALE_NONE -99999
185 static float audio_qscale = QSCALE_NONE;
186 static int audio_disable = 0;
187 static int audio_channels = 1;
188 static char  *audio_codec_name = NULL;
189 static unsigned int audio_codec_tag = 0;
190 static char *audio_language = NULL;
191
192 static int subtitle_disable = 0;
193 static char *subtitle_codec_name = NULL;
194 static char *subtitle_language = NULL;
195 static unsigned int subtitle_codec_tag = 0;
196
197 static int data_disable = 0;
198 static char *data_codec_name = NULL;
199 static unsigned int data_codec_tag = 0;
200
201 static float mux_preload= 0.5;
202 static float mux_max_delay= 0.7;
203
204 static int64_t recording_time = INT64_MAX;
205 static int64_t start_time = 0;
206 static int64_t recording_timestamp = 0;
207 static int64_t input_ts_offset = 0;
208 static int file_overwrite = 0;
209 static AVMetadata *metadata;
210 static int do_benchmark = 0;
211 static int do_hex_dump = 0;
212 static int do_pkt_dump = 0;
213 static int do_psnr = 0;
214 static int do_pass = 0;
215 static const char *pass_logfilename_prefix;
216 static int audio_stream_copy = 0;
217 static int video_stream_copy = 0;
218 static int subtitle_stream_copy = 0;
219 static int data_stream_copy = 0;
220 static int video_sync_method= -1;
221 static int audio_sync_method= 0;
222 static float audio_drift_threshold= 0.1;
223 static int copy_ts= 0;
224 static int copy_tb;
225 static int opt_shortest = 0;
226 static int video_global_header = 0;
227 static char *vstats_filename;
228 static FILE *vstats_file;
229 static int opt_programid = 0;
230 static int copy_initial_nonkeyframes = 0;
231
232 static int rate_emu = 0;
233
234 static int  video_channel = 0;
235 static char *video_standard;
236
237 static int audio_volume = 256;
238
239 static int exit_on_error = 0;
240 static int using_stdin = 0;
241 static int verbose = 1;
242 static int run_as_daemon  = 0;
243 static int thread_count= 1;
244 static int q_pressed = 0;
245 static int64_t video_size = 0;
246 static int64_t audio_size = 0;
247 static int64_t extra_size = 0;
248 static int nb_frames_dup = 0;
249 static int nb_frames_drop = 0;
250 static int input_sync;
251 static uint64_t limit_filesize = 0;
252 static int force_fps = 0;
253 static char *forced_key_frames = NULL;
254
255 static float dts_delta_threshold = 10;
256
257 static int64_t timer_start;
258
259 static uint8_t *audio_buf;
260 static uint8_t *audio_out;
261 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
262
263 static short *samples;
264
265 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
266 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
267 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
268
269 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
270
271 struct AVInputStream;
272
273 typedef struct AVOutputStream {
274     int file_index;          /* file index */
275     int index;               /* stream index in the output file */
276     int source_index;        /* AVInputStream index */
277     AVStream *st;            /* stream in the output file */
278     int encoding_needed;     /* true if encoding needed for this stream */
279     int frame_number;
280     /* input pts and corresponding output pts
281        for A/V sync */
282     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
283     struct AVInputStream *sync_ist; /* input stream to sync against */
284     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
285     AVBitStreamFilterContext *bitstream_filters;
286     /* video only */
287     int video_resample;
288     AVFrame resample_frame;              /* temporary frame for image resampling */
289     struct SwsContext *img_resample_ctx; /* for image resampling */
290     int resample_height;
291     int resample_width;
292     int resample_pix_fmt;
293
294     float frame_aspect_ratio;
295
296     /* forced key frames */
297     int64_t *forced_kf_pts;
298     int forced_kf_count;
299     int forced_kf_index;
300
301     /* audio only */
302     int audio_resample;
303     ReSampleContext *resample; /* for audio resampling */
304     int resample_sample_fmt;
305     int resample_channels;
306     int resample_sample_rate;
307     int reformat_pair;
308     AVAudioConvert *reformat_ctx;
309     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
310     FILE *logfile;
311
312 #if CONFIG_AVFILTER
313     AVFilterContext *output_video_filter;
314     AVFilterContext *input_video_filter;
315     AVFilterBufferRef *picref;
316     char *avfilter;
317     AVFilterGraph *graph;
318 #endif
319 } AVOutputStream;
320
321 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
322 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
323
324 typedef struct AVInputStream {
325     int file_index;
326     int index;
327     AVStream *st;
328     int discard;             /* true if stream data should be discarded */
329     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
330     int64_t sample_index;      /* current sample */
331
332     int64_t       start;     /* time when read started */
333     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
334                                 is not defined */
335     int64_t       pts;       /* current pts */
336     int is_start;            /* is 1 at the start and after a discontinuity */
337     int showed_multi_packet_warning;
338     int is_past_recording_time;
339 #if CONFIG_AVFILTER
340     AVFrame *filter_frame;
341     int has_filter_frame;
342 #endif
343 } AVInputStream;
344
345 typedef struct AVInputFile {
346     int eof_reached;      /* true if eof reached */
347     int ist_index;        /* index of first stream in ist_table */
348     int buffer_size;      /* current total buffer size */
349     int nb_streams;       /* nb streams we are aware of */
350 } AVInputFile;
351
352 #if HAVE_TERMIOS_H
353
354 /* init terminal so that we can grab keys */
355 static struct termios oldtty;
356 #endif
357
358 #if CONFIG_AVFILTER
359
360 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
361 {
362     AVFilterContext *last_filter, *filter;
363     /** filter graph containing all filters including input & output */
364     AVCodecContext *codec = ost->st->codec;
365     AVCodecContext *icodec = ist->st->codec;
366     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
367     AVRational sample_aspect_ratio;
368     char args[255];
369     int ret;
370
371     ost->graph = avfilter_graph_alloc();
372
373     if (ist->st->sample_aspect_ratio.num){
374         sample_aspect_ratio = ist->st->sample_aspect_ratio;
375     }else
376         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
377
378     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
379              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
380              sample_aspect_ratio.num, sample_aspect_ratio.den);
381
382     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
383                                        "src", args, NULL, ost->graph);
384     if (ret < 0)
385         return ret;
386     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
387                                        "out", NULL, &ffsink_ctx, ost->graph);
388     if (ret < 0)
389         return ret;
390     last_filter = ost->input_video_filter;
391
392     if (codec->width  != icodec->width || codec->height != icodec->height) {
393         snprintf(args, 255, "%d:%d:flags=0x%X",
394                  codec->width,
395                  codec->height,
396                  (int)av_get_int(sws_opts, "sws_flags", NULL));
397         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
398                                                 NULL, args, NULL, ost->graph)) < 0)
399             return ret;
400         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
401             return ret;
402         last_filter = filter;
403     }
404
405     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
406     ost->graph->scale_sws_opts = av_strdup(args);
407
408     if (ost->avfilter) {
409         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
410         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
411
412         outputs->name    = av_strdup("in");
413         outputs->filter_ctx = last_filter;
414         outputs->pad_idx = 0;
415         outputs->next    = NULL;
416
417         inputs->name    = av_strdup("out");
418         inputs->filter_ctx = ost->output_video_filter;
419         inputs->pad_idx = 0;
420         inputs->next    = NULL;
421
422         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
423             return ret;
424         av_freep(&ost->avfilter);
425     } else {
426         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
427             return ret;
428     }
429
430     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
431         return ret;
432
433     codec->width  = ost->output_video_filter->inputs[0]->w;
434     codec->height = ost->output_video_filter->inputs[0]->h;
435     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
436         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
437         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
438         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
439
440     return 0;
441 }
442 #endif /* CONFIG_AVFILTER */
443
444 static void term_exit(void)
445 {
446     av_log(NULL, AV_LOG_QUIET, "");
447 #if HAVE_TERMIOS_H
448     if(!run_as_daemon)
449         tcsetattr (0, TCSANOW, &oldtty);
450 #endif
451 }
452
453 static volatile int received_sigterm = 0;
454
455 static void
456 sigterm_handler(int sig)
457 {
458     received_sigterm = sig;
459     q_pressed++;
460     term_exit();
461 }
462
463 static void term_init(void)
464 {
465 #if HAVE_TERMIOS_H
466     if(!run_as_daemon){
467     struct termios tty;
468
469     tcgetattr (0, &tty);
470     oldtty = tty;
471     atexit(term_exit);
472
473     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
474                           |INLCR|IGNCR|ICRNL|IXON);
475     tty.c_oflag |= OPOST;
476     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
477     tty.c_cflag &= ~(CSIZE|PARENB);
478     tty.c_cflag |= CS8;
479     tty.c_cc[VMIN] = 1;
480     tty.c_cc[VTIME] = 0;
481
482     tcsetattr (0, TCSANOW, &tty);
483     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
484     }
485 #endif
486
487     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
488     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
489 #ifdef SIGXCPU
490     signal(SIGXCPU, sigterm_handler);
491 #endif
492 }
493
494 /* read a key without blocking */
495 static int read_key(void)
496 {
497 #if HAVE_TERMIOS_H
498     int n = 1;
499     unsigned char ch;
500     struct timeval tv;
501     fd_set rfds;
502
503     if(run_as_daemon)
504         return -1;
505
506     FD_ZERO(&rfds);
507     FD_SET(0, &rfds);
508     tv.tv_sec = 0;
509     tv.tv_usec = 0;
510     n = select(1, &rfds, NULL, NULL, &tv);
511     if (n > 0) {
512         n = read(0, &ch, 1);
513         if (n == 1)
514             return ch;
515
516         return n;
517     }
518 #elif HAVE_KBHIT
519     if(kbhit())
520         return(getch());
521 #endif
522     return -1;
523 }
524
525 static int decode_interrupt_cb(void)
526 {
527     q_pressed += read_key() == 'q';
528     return q_pressed > 1;
529 }
530
531 static int ffmpeg_exit(int ret)
532 {
533     int i;
534
535     /* close files */
536     for(i=0;i<nb_output_files;i++) {
537         AVFormatContext *s = output_files[i];
538         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
539             avio_close(s->pb);
540         avformat_free_context(s);
541         av_free(output_streams_for_file[i]);
542     }
543     for(i=0;i<nb_input_files;i++) {
544         av_close_input_file(input_files[i]);
545         av_free(input_files_ts_scale[i]);
546     }
547
548     av_free(intra_matrix);
549     av_free(inter_matrix);
550
551     if (vstats_file)
552         fclose(vstats_file);
553     av_free(vstats_filename);
554
555     av_free(streamid_map);
556     av_free(input_codecs);
557     av_free(output_codecs);
558     av_free(stream_maps);
559     av_free(meta_data_maps);
560
561     av_free(video_codec_name);
562     av_free(audio_codec_name);
563     av_free(subtitle_codec_name);
564     av_free(data_codec_name);
565
566     av_free(video_standard);
567
568     uninit_opts();
569     av_free(audio_buf);
570     av_free(audio_out);
571     allocated_audio_buf_size= allocated_audio_out_size= 0;
572     av_free(samples);
573
574 #if CONFIG_AVFILTER
575     avfilter_uninit();
576 #endif
577
578     if (received_sigterm) {
579         fprintf(stderr,
580             "Received signal %d: terminating.\n",
581             (int) received_sigterm);
582         exit (255);
583     }
584
585     exit(ret); /* not all OS-es handle main() return value */
586     return ret;
587 }
588
589 /* similar to ff_dynarray_add() and av_fast_realloc() */
590 static void *grow_array(void *array, int elem_size, int *size, int new_size)
591 {
592     if (new_size >= INT_MAX / elem_size) {
593         fprintf(stderr, "Array too big.\n");
594         ffmpeg_exit(1);
595     }
596     if (*size < new_size) {
597         uint8_t *tmp = av_realloc(array, new_size*elem_size);
598         if (!tmp) {
599             fprintf(stderr, "Could not alloc buffer.\n");
600             ffmpeg_exit(1);
601         }
602         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
603         *size = new_size;
604         return tmp;
605     }
606     return array;
607 }
608
609 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
610 {
611     if(codec && codec->sample_fmts){
612         const enum AVSampleFormat *p= codec->sample_fmts;
613         for(; *p!=-1; p++){
614             if(*p == st->codec->sample_fmt)
615                 break;
616         }
617         if (*p == -1) {
618             av_log(NULL, AV_LOG_WARNING,
619                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
620                    av_get_sample_fmt_name(st->codec->sample_fmt),
621                    codec->name,
622                    av_get_sample_fmt_name(codec->sample_fmts[0]));
623             st->codec->sample_fmt = codec->sample_fmts[0];
624         }
625     }
626 }
627
628 static void choose_sample_rate(AVStream *st, AVCodec *codec)
629 {
630     if(codec && codec->supported_samplerates){
631         const int *p= codec->supported_samplerates;
632         int best=0;
633         int best_dist=INT_MAX;
634         for(; *p; p++){
635             int dist= abs(st->codec->sample_rate - *p);
636             if(dist < best_dist){
637                 best_dist= dist;
638                 best= *p;
639             }
640         }
641         if(best_dist){
642             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
643         }
644         st->codec->sample_rate= best;
645     }
646 }
647
648 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
649 {
650     if(codec && codec->pix_fmts){
651         const enum PixelFormat *p= codec->pix_fmts;
652         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
653             if(st->codec->codec_id==CODEC_ID_MJPEG){
654                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
655             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
656                 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};
657             }
658         }
659         for(; *p!=-1; p++){
660             if(*p == st->codec->pix_fmt)
661                 break;
662         }
663         if (*p == -1) {
664             if(st->codec->pix_fmt != PIX_FMT_NONE)
665             av_log(NULL, AV_LOG_WARNING,
666                    "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
667                    av_pix_fmt_descriptors[st->codec->pix_fmt].name,
668                    codec->name,
669                    av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
670             st->codec->pix_fmt = codec->pix_fmts[0];
671         }
672     }
673 }
674
675 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
676 {
677     int idx = oc->nb_streams - 1;
678     AVOutputStream *ost;
679
680     output_streams_for_file[file_idx] =
681         grow_array(output_streams_for_file[file_idx],
682                    sizeof(*output_streams_for_file[file_idx]),
683                    &nb_output_streams_for_file[file_idx],
684                    oc->nb_streams);
685     ost = output_streams_for_file[file_idx][idx] =
686         av_mallocz(sizeof(AVOutputStream));
687     if (!ost) {
688         fprintf(stderr, "Could not alloc output stream\n");
689         ffmpeg_exit(1);
690     }
691     ost->file_index = file_idx;
692     ost->index = idx;
693     return ost;
694 }
695
696 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
697 {
698     int i, err;
699     AVFormatContext *ic;
700     int nopts = 0;
701
702     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
703     if (err < 0)
704         return err;
705     /* copy stream format */
706     s->nb_streams = 0;
707     for(i=0;i<ic->nb_streams;i++) {
708         AVStream *st;
709         AVCodec *codec;
710
711         s->nb_streams++;
712
713         // FIXME: a more elegant solution is needed
714         st = av_mallocz(sizeof(AVStream));
715         memcpy(st, ic->streams[i], sizeof(AVStream));
716         st->codec = avcodec_alloc_context();
717         if (!st->codec) {
718             print_error(filename, AVERROR(ENOMEM));
719             ffmpeg_exit(1);
720         }
721         avcodec_copy_context(st->codec, ic->streams[i]->codec);
722         s->streams[i] = st;
723
724         codec = avcodec_find_encoder(st->codec->codec_id);
725         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
726             if (audio_stream_copy) {
727                 st->stream_copy = 1;
728             } else
729                 choose_sample_fmt(st, codec);
730         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
731             if (video_stream_copy) {
732                 st->stream_copy = 1;
733             } else
734                 choose_pixel_fmt(st, codec);
735         }
736
737         if(st->codec->flags & CODEC_FLAG_BITEXACT)
738             nopts = 1;
739
740         new_output_stream(s, nb_output_files);
741     }
742
743     if (!nopts)
744         s->timestamp = av_gettime();
745
746     av_close_input_file(ic);
747     return 0;
748 }
749
750 static double
751 get_sync_ipts(const AVOutputStream *ost)
752 {
753     const AVInputStream *ist = ost->sync_ist;
754     return (double)(ist->pts - start_time)/AV_TIME_BASE;
755 }
756
757 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
758     int ret;
759
760     while(bsfc){
761         AVPacket new_pkt= *pkt;
762         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
763                                           &new_pkt.data, &new_pkt.size,
764                                           pkt->data, pkt->size,
765                                           pkt->flags & AV_PKT_FLAG_KEY);
766         if(a>0){
767             av_free_packet(pkt);
768             new_pkt.destruct= av_destruct_packet;
769         } else if(a<0){
770             fprintf(stderr, "%s failed for stream %d, codec %s",
771                     bsfc->filter->name, pkt->stream_index,
772                     avctx->codec ? avctx->codec->name : "copy");
773             print_error("", a);
774             if (exit_on_error)
775                 ffmpeg_exit(1);
776         }
777         *pkt= new_pkt;
778
779         bsfc= bsfc->next;
780     }
781
782     ret= av_interleaved_write_frame(s, pkt);
783     if(ret < 0){
784         print_error("av_interleaved_write_frame()", ret);
785         ffmpeg_exit(1);
786     }
787 }
788
789 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
790
791 static void do_audio_out(AVFormatContext *s,
792                          AVOutputStream *ost,
793                          AVInputStream *ist,
794                          unsigned char *buf, int size)
795 {
796     uint8_t *buftmp;
797     int64_t audio_out_size, audio_buf_size;
798     int64_t allocated_for_size= size;
799
800     int size_out, frame_bytes, ret, resample_changed;
801     AVCodecContext *enc= ost->st->codec;
802     AVCodecContext *dec= ist->st->codec;
803     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
804     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
805     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
806
807 need_realloc:
808     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
809     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
810     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
811     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
812     audio_buf_size*= osize*enc->channels;
813
814     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
815     if(coded_bps > 8*osize)
816         audio_out_size= audio_out_size * coded_bps / (8*osize);
817     audio_out_size += FF_MIN_BUFFER_SIZE;
818
819     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
820         fprintf(stderr, "Buffer sizes too large\n");
821         ffmpeg_exit(1);
822     }
823
824     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
825     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
826     if (!audio_buf || !audio_out){
827         fprintf(stderr, "Out of memory in do_audio_out\n");
828         ffmpeg_exit(1);
829     }
830
831     if (enc->channels != dec->channels)
832         ost->audio_resample = 1;
833
834     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
835                        ost->resample_channels    != dec->channels   ||
836                        ost->resample_sample_rate != dec->sample_rate;
837
838     if ((ost->audio_resample && !ost->resample) || resample_changed) {
839         if (resample_changed) {
840             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",
841                    ist->file_index, ist->index,
842                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
843                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
844             ost->resample_sample_fmt  = dec->sample_fmt;
845             ost->resample_channels    = dec->channels;
846             ost->resample_sample_rate = dec->sample_rate;
847             if (ost->resample)
848                 audio_resample_close(ost->resample);
849         }
850         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
851         if (audio_sync_method <= 1 &&
852             ost->resample_sample_fmt  == enc->sample_fmt &&
853             ost->resample_channels    == enc->channels   &&
854             ost->resample_sample_rate == enc->sample_rate) {
855             ost->resample = NULL;
856             ost->audio_resample = 0;
857         } else {
858             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
859                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
860             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
861                                                    enc->sample_rate, dec->sample_rate,
862                                                    enc->sample_fmt,  dec->sample_fmt,
863                                                    16, 10, 0, 0.8);
864             if (!ost->resample) {
865                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
866                         dec->channels, dec->sample_rate,
867                         enc->channels, enc->sample_rate);
868                 ffmpeg_exit(1);
869             }
870         }
871     }
872
873 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
874     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
875         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
876         if (ost->reformat_ctx)
877             av_audio_convert_free(ost->reformat_ctx);
878         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
879                                                    dec->sample_fmt, 1, NULL, 0);
880         if (!ost->reformat_ctx) {
881             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
882                 av_get_sample_fmt_name(dec->sample_fmt),
883                 av_get_sample_fmt_name(enc->sample_fmt));
884             ffmpeg_exit(1);
885         }
886         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
887     }
888
889     if(audio_sync_method){
890         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
891                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
892         double idelta= delta*dec->sample_rate / enc->sample_rate;
893         int byte_delta= ((int)idelta)*2*dec->channels;
894
895         //FIXME resample delay
896         if(fabs(delta) > 50){
897             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
898                 if(byte_delta < 0){
899                     byte_delta= FFMAX(byte_delta, -size);
900                     size += byte_delta;
901                     buf  -= byte_delta;
902                     if(verbose > 2)
903                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
904                     if(!size)
905                         return;
906                     ist->is_start=0;
907                 }else{
908                     static uint8_t *input_tmp= NULL;
909                     input_tmp= av_realloc(input_tmp, byte_delta + size);
910
911                     if(byte_delta > allocated_for_size - size){
912                         allocated_for_size= byte_delta + (int64_t)size;
913                         goto need_realloc;
914                     }
915                     ist->is_start=0;
916
917                     memset(input_tmp, 0, byte_delta);
918                     memcpy(input_tmp + byte_delta, buf, size);
919                     buf= input_tmp;
920                     size += byte_delta;
921                     if(verbose > 2)
922                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
923                 }
924             }else if(audio_sync_method>1){
925                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
926                 av_assert0(ost->audio_resample);
927                 if(verbose > 2)
928                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
929 //                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));
930                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
931             }
932         }
933     }else
934         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
935                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
936
937     if (ost->audio_resample) {
938         buftmp = audio_buf;
939         size_out = audio_resample(ost->resample,
940                                   (short *)buftmp, (short *)buf,
941                                   size / (dec->channels * isize));
942         size_out = size_out * enc->channels * osize;
943     } else {
944         buftmp = buf;
945         size_out = size;
946     }
947
948     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
949         const void *ibuf[6]= {buftmp};
950         void *obuf[6]= {audio_buf};
951         int istride[6]= {isize};
952         int ostride[6]= {osize};
953         int len= size_out/istride[0];
954         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
955             printf("av_audio_convert() failed\n");
956             if (exit_on_error)
957                 ffmpeg_exit(1);
958             return;
959         }
960         buftmp = audio_buf;
961         size_out = len*osize;
962     }
963
964     /* now encode as many frames as possible */
965     if (enc->frame_size > 1) {
966         /* output resampled raw samples */
967         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
968             fprintf(stderr, "av_fifo_realloc2() failed\n");
969             ffmpeg_exit(1);
970         }
971         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
972
973         frame_bytes = enc->frame_size * osize * enc->channels;
974
975         while (av_fifo_size(ost->fifo) >= frame_bytes) {
976             AVPacket pkt;
977             av_init_packet(&pkt);
978
979             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
980
981             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
982
983             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
984                                        (short *)audio_buf);
985             if (ret < 0) {
986                 fprintf(stderr, "Audio encoding failed\n");
987                 ffmpeg_exit(1);
988             }
989             audio_size += ret;
990             pkt.stream_index= ost->index;
991             pkt.data= audio_out;
992             pkt.size= ret;
993             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
994                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
995             pkt.flags |= AV_PKT_FLAG_KEY;
996             write_frame(s, &pkt, enc, ost->bitstream_filters);
997
998             ost->sync_opts += enc->frame_size;
999         }
1000     } else {
1001         AVPacket pkt;
1002         av_init_packet(&pkt);
1003
1004         ost->sync_opts += size_out / (osize * enc->channels);
1005
1006         /* output a pcm frame */
1007         /* determine the size of the coded buffer */
1008         size_out /= osize;
1009         if (coded_bps)
1010             size_out = size_out*coded_bps/8;
1011
1012         if(size_out > audio_out_size){
1013             fprintf(stderr, "Internal error, buffer size too small\n");
1014             ffmpeg_exit(1);
1015         }
1016
1017         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1018         ret = avcodec_encode_audio(enc, audio_out, size_out,
1019                                    (short *)buftmp);
1020         if (ret < 0) {
1021             fprintf(stderr, "Audio encoding failed\n");
1022             ffmpeg_exit(1);
1023         }
1024         audio_size += ret;
1025         pkt.stream_index= ost->index;
1026         pkt.data= audio_out;
1027         pkt.size= ret;
1028         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1029             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1030         pkt.flags |= AV_PKT_FLAG_KEY;
1031         write_frame(s, &pkt, enc, ost->bitstream_filters);
1032     }
1033 }
1034
1035 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1036 {
1037     AVCodecContext *dec;
1038     AVPicture *picture2;
1039     AVPicture picture_tmp;
1040     uint8_t *buf = 0;
1041
1042     dec = ist->st->codec;
1043
1044     /* deinterlace : must be done before any resize */
1045     if (do_deinterlace) {
1046         int size;
1047
1048         /* create temporary picture */
1049         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1050         buf = av_malloc(size);
1051         if (!buf)
1052             return;
1053
1054         picture2 = &picture_tmp;
1055         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1056
1057         if(avpicture_deinterlace(picture2, picture,
1058                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1059             /* if error, do not deinterlace */
1060             fprintf(stderr, "Deinterlacing failed\n");
1061             av_free(buf);
1062             buf = NULL;
1063             picture2 = picture;
1064         }
1065     } else {
1066         picture2 = picture;
1067     }
1068
1069     if (picture != picture2)
1070         *picture = *picture2;
1071     *bufp = buf;
1072 }
1073
1074 /* we begin to correct av delay at this threshold */
1075 #define AV_DELAY_MAX 0.100
1076
1077 static void do_subtitle_out(AVFormatContext *s,
1078                             AVOutputStream *ost,
1079                             AVInputStream *ist,
1080                             AVSubtitle *sub,
1081                             int64_t pts)
1082 {
1083     static uint8_t *subtitle_out = NULL;
1084     int subtitle_out_max_size = 1024 * 1024;
1085     int subtitle_out_size, nb, i;
1086     AVCodecContext *enc;
1087     AVPacket pkt;
1088
1089     if (pts == AV_NOPTS_VALUE) {
1090         fprintf(stderr, "Subtitle packets must have a pts\n");
1091         if (exit_on_error)
1092             ffmpeg_exit(1);
1093         return;
1094     }
1095
1096     enc = ost->st->codec;
1097
1098     if (!subtitle_out) {
1099         subtitle_out = av_malloc(subtitle_out_max_size);
1100     }
1101
1102     /* Note: DVB subtitle need one packet to draw them and one other
1103        packet to clear them */
1104     /* XXX: signal it in the codec context ? */
1105     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1106         nb = 2;
1107     else
1108         nb = 1;
1109
1110     for(i = 0; i < nb; i++) {
1111         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1112         // start_display_time is required to be 0
1113         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1114         sub->end_display_time -= sub->start_display_time;
1115         sub->start_display_time = 0;
1116         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1117                                                     subtitle_out_max_size, sub);
1118         if (subtitle_out_size < 0) {
1119             fprintf(stderr, "Subtitle encoding failed\n");
1120             ffmpeg_exit(1);
1121         }
1122
1123         av_init_packet(&pkt);
1124         pkt.stream_index = ost->index;
1125         pkt.data = subtitle_out;
1126         pkt.size = subtitle_out_size;
1127         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1128         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1129             /* XXX: the pts correction is handled here. Maybe handling
1130                it in the codec would be better */
1131             if (i == 0)
1132                 pkt.pts += 90 * sub->start_display_time;
1133             else
1134                 pkt.pts += 90 * sub->end_display_time;
1135         }
1136         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1137     }
1138 }
1139
1140 static int bit_buffer_size= 1024*256;
1141 static uint8_t *bit_buffer= NULL;
1142
1143 static void do_video_out(AVFormatContext *s,
1144                          AVOutputStream *ost,
1145                          AVInputStream *ist,
1146                          AVFrame *in_picture,
1147                          int *frame_size)
1148 {
1149     int nb_frames, i, ret, av_unused resample_changed;
1150     AVFrame *final_picture, *formatted_picture;
1151     AVCodecContext *enc, *dec;
1152     double sync_ipts;
1153
1154     enc = ost->st->codec;
1155     dec = ist->st->codec;
1156
1157     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1158
1159     /* by default, we output a single frame */
1160     nb_frames = 1;
1161
1162     *frame_size = 0;
1163
1164     if(video_sync_method){
1165         double vdelta = sync_ipts - ost->sync_opts;
1166         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1167         if (vdelta < -1.1)
1168             nb_frames = 0;
1169         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1170             if(vdelta<=-0.6){
1171                 nb_frames=0;
1172             }else if(vdelta>0.6)
1173                 ost->sync_opts= lrintf(sync_ipts);
1174         }else if (vdelta > 1.1)
1175             nb_frames = lrintf(vdelta);
1176 //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);
1177         if (nb_frames == 0){
1178             ++nb_frames_drop;
1179             if (verbose>2)
1180                 fprintf(stderr, "*** drop!\n");
1181         }else if (nb_frames > 1) {
1182             nb_frames_dup += nb_frames - 1;
1183             if (verbose>2)
1184                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1185         }
1186     }else
1187         ost->sync_opts= lrintf(sync_ipts);
1188
1189     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1190     if (nb_frames <= 0)
1191         return;
1192
1193     formatted_picture = in_picture;
1194     final_picture = formatted_picture;
1195
1196 #if !CONFIG_AVFILTER
1197     resample_changed = ost->resample_width   != dec->width  ||
1198                        ost->resample_height  != dec->height ||
1199                        ost->resample_pix_fmt != dec->pix_fmt;
1200
1201     if (resample_changed) {
1202         av_log(NULL, AV_LOG_INFO,
1203                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1204                ist->file_index, ist->index,
1205                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
1206                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
1207         ost->resample_width   = dec->width;
1208         ost->resample_height  = dec->height;
1209         ost->resample_pix_fmt = dec->pix_fmt;
1210     }
1211
1212     ost->video_resample = dec->width   != enc->width  ||
1213                           dec->height  != enc->height ||
1214                           dec->pix_fmt != enc->pix_fmt;
1215
1216     if (ost->video_resample) {
1217         final_picture = &ost->resample_frame;
1218         if (!ost->img_resample_ctx || resample_changed) {
1219             /* initialize the destination picture */
1220             if (!ost->resample_frame.data[0]) {
1221                 avcodec_get_frame_defaults(&ost->resample_frame);
1222                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1223                                     enc->width, enc->height)) {
1224                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1225                     ffmpeg_exit(1);
1226                 }
1227             }
1228             /* initialize a new scaler context */
1229             sws_freeContext(ost->img_resample_ctx);
1230             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1231             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1232                                                    enc->width, enc->height, enc->pix_fmt,
1233                                                    sws_flags, NULL, NULL, NULL);
1234             if (ost->img_resample_ctx == NULL) {
1235                 fprintf(stderr, "Cannot get resampling context\n");
1236                 ffmpeg_exit(1);
1237             }
1238         }
1239         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1240                   0, ost->resample_height, ost->resample_frame.data, ost->resample_frame.linesize);
1241     }
1242 #endif
1243
1244     /* duplicates frame if needed */
1245     for(i=0;i<nb_frames;i++) {
1246         AVPacket pkt;
1247         av_init_packet(&pkt);
1248         pkt.stream_index= ost->index;
1249
1250         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1251             /* raw pictures are written as AVPicture structure to
1252                avoid any copies. We support temorarily the older
1253                method. */
1254             AVFrame* old_frame = enc->coded_frame;
1255             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1256             pkt.data= (uint8_t *)final_picture;
1257             pkt.size=  sizeof(AVPicture);
1258             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1259             pkt.flags |= AV_PKT_FLAG_KEY;
1260
1261             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1262             enc->coded_frame = old_frame;
1263         } else {
1264             AVFrame big_picture;
1265
1266             big_picture= *final_picture;
1267             /* better than nothing: use input picture interlaced
1268                settings */
1269             big_picture.interlaced_frame = in_picture->interlaced_frame;
1270             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1271                 if(top_field_first == -1)
1272                     big_picture.top_field_first = in_picture->top_field_first;
1273                 else
1274                     big_picture.top_field_first = top_field_first;
1275             }
1276
1277             /* handles sameq here. This is not correct because it may
1278                not be a global option */
1279             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1280             if(!me_threshold)
1281                 big_picture.pict_type = 0;
1282 //            big_picture.pts = AV_NOPTS_VALUE;
1283             big_picture.pts= ost->sync_opts;
1284 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1285 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1286             if (ost->forced_kf_index < ost->forced_kf_count &&
1287                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1288                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1289                 ost->forced_kf_index++;
1290             }
1291             ret = avcodec_encode_video(enc,
1292                                        bit_buffer, bit_buffer_size,
1293                                        &big_picture);
1294             if (ret < 0) {
1295                 fprintf(stderr, "Video encoding failed\n");
1296                 ffmpeg_exit(1);
1297             }
1298
1299             if(ret>0){
1300                 pkt.data= bit_buffer;
1301                 pkt.size= ret;
1302                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1303                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1304 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1305    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1306    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1307
1308                 if(enc->coded_frame->key_frame)
1309                     pkt.flags |= AV_PKT_FLAG_KEY;
1310                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1311                 *frame_size = ret;
1312                 video_size += ret;
1313                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1314                 //        enc->frame_number-1, ret, enc->pict_type);
1315                 /* if two pass, output log */
1316                 if (ost->logfile && enc->stats_out) {
1317                     fprintf(ost->logfile, "%s", enc->stats_out);
1318                 }
1319             }
1320         }
1321         ost->sync_opts++;
1322         ost->frame_number++;
1323     }
1324 }
1325
1326 static double psnr(double d){
1327     return -10.0*log(d)/log(10.0);
1328 }
1329
1330 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1331                            int frame_size)
1332 {
1333     AVCodecContext *enc;
1334     int frame_number;
1335     double ti1, bitrate, avg_bitrate;
1336
1337     /* this is executed just the first time do_video_stats is called */
1338     if (!vstats_file) {
1339         vstats_file = fopen(vstats_filename, "w");
1340         if (!vstats_file) {
1341             perror("fopen");
1342             ffmpeg_exit(1);
1343         }
1344     }
1345
1346     enc = ost->st->codec;
1347     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1348         frame_number = ost->frame_number;
1349         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1350         if (enc->flags&CODEC_FLAG_PSNR)
1351             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1352
1353         fprintf(vstats_file,"f_size= %6d ", frame_size);
1354         /* compute pts value */
1355         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1356         if (ti1 < 0.01)
1357             ti1 = 0.01;
1358
1359         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1360         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1361         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1362             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1363         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1364     }
1365 }
1366
1367 static void print_report(AVFormatContext **output_files,
1368                          AVOutputStream **ost_table, int nb_ostreams,
1369                          int is_last_report)
1370 {
1371     char buf[1024];
1372     AVOutputStream *ost;
1373     AVFormatContext *oc;
1374     int64_t total_size;
1375     AVCodecContext *enc;
1376     int frame_number, vid, i;
1377     double bitrate, ti1, pts;
1378     static int64_t last_time = -1;
1379     static int qp_histogram[52];
1380
1381     if (!is_last_report) {
1382         int64_t cur_time;
1383         /* display the report every 0.5 seconds */
1384         cur_time = av_gettime();
1385         if (last_time == -1) {
1386             last_time = cur_time;
1387             return;
1388         }
1389         if ((cur_time - last_time) < 500000)
1390             return;
1391         last_time = cur_time;
1392     }
1393
1394
1395     oc = output_files[0];
1396
1397     total_size = avio_size(oc->pb);
1398     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1399         total_size= avio_tell(oc->pb);
1400
1401     buf[0] = '\0';
1402     ti1 = 1e10;
1403     vid = 0;
1404     for(i=0;i<nb_ostreams;i++) {
1405         float q= -1;
1406         ost = ost_table[i];
1407         enc = ost->st->codec;
1408         if(!ost->st->stream_copy && enc->coded_frame)
1409             q= enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1410         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1411             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1412         }
1413         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1414             float t = (av_gettime()-timer_start) / 1000000.0;
1415
1416             frame_number = ost->frame_number;
1417             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1418                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1419             if(is_last_report)
1420                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1421             if(qp_hist){
1422                 int j;
1423                 int qp= lrintf(q);
1424                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1425                     qp_histogram[qp]++;
1426                 for(j=0; j<32; j++)
1427                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1428             }
1429             if (enc->flags&CODEC_FLAG_PSNR){
1430                 int j;
1431                 double error, error_sum=0;
1432                 double scale, scale_sum=0;
1433                 char type[3]= {'Y','U','V'};
1434                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1435                 for(j=0; j<3; j++){
1436                     if(is_last_report){
1437                         error= enc->error[j];
1438                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1439                     }else{
1440                         error= enc->coded_frame->error[j];
1441                         scale= enc->width*enc->height*255.0*255.0;
1442                     }
1443                     if(j) scale/=4;
1444                     error_sum += error;
1445                     scale_sum += scale;
1446                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1447                 }
1448                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1449             }
1450             vid = 1;
1451         }
1452         /* compute min output value */
1453         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1454         if ((pts < ti1) && (pts > 0))
1455             ti1 = pts;
1456     }
1457     if (ti1 < 0.01)
1458         ti1 = 0.01;
1459
1460     if (verbose > 0 || is_last_report) {
1461         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1462
1463         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1464             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1465             (double)total_size / 1024, ti1, bitrate);
1466
1467         if (nb_frames_dup || nb_frames_drop)
1468           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1469                   nb_frames_dup, nb_frames_drop);
1470
1471         if (verbose >= 0)
1472             fprintf(stderr, "%s    \r", buf);
1473
1474         fflush(stderr);
1475     }
1476
1477     if (is_last_report && verbose >= 0){
1478         int64_t raw= audio_size + video_size + extra_size;
1479         fprintf(stderr, "\n");
1480         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1481                 video_size/1024.0,
1482                 audio_size/1024.0,
1483                 extra_size/1024.0,
1484                 100.0*(total_size - raw)/raw
1485         );
1486     }
1487 }
1488
1489 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1490 {
1491     int fill_char = 0x00;
1492     if (sample_fmt == AV_SAMPLE_FMT_U8)
1493         fill_char = 0x80;
1494     memset(buf, fill_char, size);
1495 }
1496
1497 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1498 static int output_packet(AVInputStream *ist, int ist_index,
1499                          AVOutputStream **ost_table, int nb_ostreams,
1500                          const AVPacket *pkt)
1501 {
1502     AVFormatContext *os;
1503     AVOutputStream *ost;
1504     int ret, i;
1505     int got_picture;
1506     AVFrame picture;
1507     void *buffer_to_free = NULL;
1508     static unsigned int samples_size= 0;
1509     AVSubtitle subtitle, *subtitle_to_free;
1510     int64_t pkt_pts = AV_NOPTS_VALUE;
1511 #if CONFIG_AVFILTER
1512     int frame_available;
1513 #endif
1514
1515     AVPacket avpkt;
1516     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1517
1518     if(ist->next_pts == AV_NOPTS_VALUE)
1519         ist->next_pts= ist->pts;
1520
1521     if (pkt == NULL) {
1522         /* EOF handling */
1523         av_init_packet(&avpkt);
1524         avpkt.data = NULL;
1525         avpkt.size = 0;
1526         goto handle_eof;
1527     } else {
1528         avpkt = *pkt;
1529     }
1530
1531     if(pkt->dts != AV_NOPTS_VALUE)
1532         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1533     if(pkt->pts != AV_NOPTS_VALUE)
1534         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1535
1536     //while we have more to decode or while the decoder did output something on EOF
1537     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1538         uint8_t *data_buf, *decoded_data_buf;
1539         int data_size, decoded_data_size;
1540     handle_eof:
1541         ist->pts= ist->next_pts;
1542
1543         if(avpkt.size && avpkt.size != pkt->size &&
1544            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1545             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1546             ist->showed_multi_packet_warning=1;
1547         }
1548
1549         /* decode the packet if needed */
1550         decoded_data_buf = NULL; /* fail safe */
1551         decoded_data_size= 0;
1552         data_buf  = avpkt.data;
1553         data_size = avpkt.size;
1554         subtitle_to_free = NULL;
1555         if (ist->decoding_needed) {
1556             switch(ist->st->codec->codec_type) {
1557             case AVMEDIA_TYPE_AUDIO:{
1558                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1559                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1560                     av_free(samples);
1561                     samples= av_malloc(samples_size);
1562                 }
1563                 decoded_data_size= samples_size;
1564                     /* XXX: could avoid copy if PCM 16 bits with same
1565                        endianness as CPU */
1566                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1567                                             &avpkt);
1568                 if (ret < 0)
1569                     goto fail_decode;
1570                 avpkt.data += ret;
1571                 avpkt.size -= ret;
1572                 data_size   = ret;
1573                 /* Some bug in mpeg audio decoder gives */
1574                 /* decoded_data_size < 0, it seems they are overflows */
1575                 if (decoded_data_size <= 0) {
1576                     /* no audio frame */
1577                     continue;
1578                 }
1579                 decoded_data_buf = (uint8_t *)samples;
1580                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1581                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1582                 break;}
1583             case AVMEDIA_TYPE_VIDEO:
1584                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1585                     /* XXX: allocate picture correctly */
1586                     avcodec_get_frame_defaults(&picture);
1587                     avpkt.pts = pkt_pts;
1588                     avpkt.dts = ist->pts;
1589                     pkt_pts = AV_NOPTS_VALUE;
1590
1591                     ret = avcodec_decode_video2(ist->st->codec,
1592                                                 &picture, &got_picture, &avpkt);
1593                     ist->st->quality= picture.quality;
1594                     if (ret < 0)
1595                         goto fail_decode;
1596                     if (!got_picture) {
1597                         /* no picture yet */
1598                         goto discard_packet;
1599                     }
1600                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1601                     if (ist->st->codec->time_base.num != 0) {
1602                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1603                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1604                                           ist->st->codec->time_base.num * ticks) /
1605                             ist->st->codec->time_base.den;
1606                     }
1607                     avpkt.size = 0;
1608                     buffer_to_free = NULL;
1609                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1610                     break;
1611             case AVMEDIA_TYPE_SUBTITLE:
1612                 ret = avcodec_decode_subtitle2(ist->st->codec,
1613                                                &subtitle, &got_picture, &avpkt);
1614                 if (ret < 0)
1615                     goto fail_decode;
1616                 if (!got_picture) {
1617                     goto discard_packet;
1618                 }
1619                 subtitle_to_free = &subtitle;
1620                 avpkt.size = 0;
1621                 break;
1622             default:
1623                 goto fail_decode;
1624             }
1625         } else {
1626             switch(ist->st->codec->codec_type) {
1627             case AVMEDIA_TYPE_AUDIO:
1628                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1629                     ist->st->codec->sample_rate;
1630                 break;
1631             case AVMEDIA_TYPE_VIDEO:
1632                 if (ist->st->codec->time_base.num != 0) {
1633                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1634                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1635                                       ist->st->codec->time_base.num * ticks) /
1636                         ist->st->codec->time_base.den;
1637                 }
1638                 break;
1639             }
1640             ret = avpkt.size;
1641             avpkt.size = 0;
1642         }
1643
1644 #if CONFIG_AVFILTER
1645         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
1646             for(i=0;i<nb_ostreams;i++) {
1647                 ost = ost_table[i];
1648                 if (ost->input_video_filter && ost->source_index == ist_index) {
1649                     if (!picture.sample_aspect_ratio.num)
1650                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1651                     picture.pts = ist->pts;
1652                     // add it to be filtered
1653                     av_vsrc_buffer_add_frame2(ost->input_video_filter, &picture, ""); //TODO user setable params
1654                 }
1655             }
1656         }
1657 #endif
1658
1659         // preprocess audio (volume)
1660         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1661             if (audio_volume != 256) {
1662                 short *volp;
1663                 volp = samples;
1664                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1665                     int v = ((*volp) * audio_volume + 128) >> 8;
1666                     if (v < -32768) v = -32768;
1667                     if (v >  32767) v = 32767;
1668                     *volp++ = v;
1669                 }
1670             }
1671         }
1672
1673         /* frame rate emulation */
1674         if (rate_emu) {
1675             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1676             int64_t now = av_gettime() - ist->start;
1677             if (pts > now)
1678                 usleep(pts - now);
1679         }
1680         /* if output time reached then transcode raw format,
1681            encode packets and output them */
1682         if (start_time == 0 || ist->pts >= start_time)
1683             for(i=0;i<nb_ostreams;i++) {
1684                 int frame_size;
1685
1686                 ost = ost_table[i];
1687                 if (ost->source_index == ist_index) {
1688 #if CONFIG_AVFILTER
1689                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1690                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1691                 while (frame_available) {
1692                     AVRational ist_pts_tb;
1693                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1694                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1695                     if (ost->picref)
1696                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1697 #endif
1698                     os = output_files[ost->file_index];
1699
1700                     /* set the input output pts pairs */
1701                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1702
1703                     if (ost->encoding_needed) {
1704                         av_assert0(ist->decoding_needed);
1705                         switch(ost->st->codec->codec_type) {
1706                         case AVMEDIA_TYPE_AUDIO:
1707                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1708                             break;
1709                         case AVMEDIA_TYPE_VIDEO:
1710 #if CONFIG_AVFILTER
1711                             if (ost->picref->video && !ost->frame_aspect_ratio)
1712                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1713 #endif
1714                             do_video_out(os, ost, ist, &picture, &frame_size);
1715                             if (vstats_filename && frame_size)
1716                                 do_video_stats(os, ost, frame_size);
1717                             break;
1718                         case AVMEDIA_TYPE_SUBTITLE:
1719                             do_subtitle_out(os, ost, ist, &subtitle,
1720                                             pkt->pts);
1721                             break;
1722                         default:
1723                             abort();
1724                         }
1725                     } else {
1726                         AVFrame avframe; //FIXME/XXX remove this
1727                         AVPacket opkt;
1728                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1729
1730                         av_init_packet(&opkt);
1731
1732                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1733 #if !CONFIG_AVFILTER
1734                             continue;
1735 #else
1736                             goto cont;
1737 #endif
1738
1739                         /* no reencoding needed : output the packet directly */
1740                         /* force the input stream PTS */
1741
1742                         avcodec_get_frame_defaults(&avframe);
1743                         ost->st->codec->coded_frame= &avframe;
1744                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1745
1746                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1747                             audio_size += data_size;
1748                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1749                             video_size += data_size;
1750                             ost->sync_opts++;
1751                         }
1752
1753                         opkt.stream_index= ost->index;
1754                         if(pkt->pts != AV_NOPTS_VALUE)
1755                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1756                         else
1757                             opkt.pts= AV_NOPTS_VALUE;
1758
1759                         if (pkt->dts == AV_NOPTS_VALUE)
1760                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1761                         else
1762                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1763                         opkt.dts -= ost_tb_start_time;
1764
1765                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1766                         opkt.flags= pkt->flags;
1767
1768                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1769                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1770                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1771                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1772                            ) {
1773                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1774                                 opkt.destruct= av_destruct_packet;
1775                         } else {
1776                             opkt.data = data_buf;
1777                             opkt.size = data_size;
1778                         }
1779
1780                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1781                         ost->st->codec->frame_number++;
1782                         ost->frame_number++;
1783                         av_free_packet(&opkt);
1784                     }
1785 #if CONFIG_AVFILTER
1786                     cont:
1787                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1788                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1789                     if(ost->picref)
1790                         avfilter_unref_buffer(ost->picref);
1791                 }
1792 #endif
1793                 }
1794             }
1795
1796         av_free(buffer_to_free);
1797         /* XXX: allocate the subtitles in the codec ? */
1798         if (subtitle_to_free) {
1799             avsubtitle_free(subtitle_to_free);
1800             subtitle_to_free = NULL;
1801         }
1802     }
1803  discard_packet:
1804     if (pkt == NULL) {
1805         /* EOF handling */
1806
1807         for(i=0;i<nb_ostreams;i++) {
1808             ost = ost_table[i];
1809             if (ost->source_index == ist_index) {
1810                 AVCodecContext *enc= ost->st->codec;
1811                 os = output_files[ost->file_index];
1812
1813                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1814                     continue;
1815                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1816                     continue;
1817
1818                 if (ost->encoding_needed) {
1819                     for(;;) {
1820                         AVPacket pkt;
1821                         int fifo_bytes;
1822                         av_init_packet(&pkt);
1823                         pkt.stream_index= ost->index;
1824
1825                         switch(ost->st->codec->codec_type) {
1826                         case AVMEDIA_TYPE_AUDIO:
1827                             fifo_bytes = av_fifo_size(ost->fifo);
1828                             ret = 0;
1829                             /* encode any samples remaining in fifo */
1830                             if (fifo_bytes > 0) {
1831                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1832                                 int fs_tmp = enc->frame_size;
1833
1834                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1835                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1836                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1837                                 } else { /* pad */
1838                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1839                                     if (allocated_audio_buf_size < frame_bytes)
1840                                         ffmpeg_exit(1);
1841                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1842                                 }
1843
1844                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1845                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1846                                                           ost->st->time_base.num, enc->sample_rate);
1847                                 enc->frame_size = fs_tmp;
1848                             }
1849                             if(ret <= 0) {
1850                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1851                             }
1852                             if (ret < 0) {
1853                                 fprintf(stderr, "Audio encoding failed\n");
1854                                 ffmpeg_exit(1);
1855                             }
1856                             audio_size += ret;
1857                             pkt.flags |= AV_PKT_FLAG_KEY;
1858                             break;
1859                         case AVMEDIA_TYPE_VIDEO:
1860                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1861                             if (ret < 0) {
1862                                 fprintf(stderr, "Video encoding failed\n");
1863                                 ffmpeg_exit(1);
1864                             }
1865                             video_size += ret;
1866                             if(enc->coded_frame && enc->coded_frame->key_frame)
1867                                 pkt.flags |= AV_PKT_FLAG_KEY;
1868                             if (ost->logfile && enc->stats_out) {
1869                                 fprintf(ost->logfile, "%s", enc->stats_out);
1870                             }
1871                             break;
1872                         default:
1873                             ret=-1;
1874                         }
1875
1876                         if(ret<=0)
1877                             break;
1878                         pkt.data= bit_buffer;
1879                         pkt.size= ret;
1880                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1881                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1882                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1883                     }
1884                 }
1885             }
1886         }
1887     }
1888
1889     return 0;
1890  fail_decode:
1891     return -1;
1892 }
1893
1894 static void print_sdp(AVFormatContext **avc, int n)
1895 {
1896     char sdp[2048];
1897
1898     av_sdp_create(avc, n, sdp, sizeof(sdp));
1899     printf("SDP:\n%s\n", sdp);
1900     fflush(stdout);
1901 }
1902
1903 static int copy_chapters(int infile, int outfile)
1904 {
1905     AVFormatContext *is = input_files[infile];
1906     AVFormatContext *os = output_files[outfile];
1907     int i;
1908
1909     for (i = 0; i < is->nb_chapters; i++) {
1910         AVChapter *in_ch = is->chapters[i], *out_ch;
1911         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1912                                       AV_TIME_BASE_Q, in_ch->time_base);
1913         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1914                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1915
1916
1917         if (in_ch->end < ts_off)
1918             continue;
1919         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1920             break;
1921
1922         out_ch = av_mallocz(sizeof(AVChapter));
1923         if (!out_ch)
1924             return AVERROR(ENOMEM);
1925
1926         out_ch->id        = in_ch->id;
1927         out_ch->time_base = in_ch->time_base;
1928         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1929         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1930
1931         if (metadata_chapters_autocopy)
1932             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1933
1934         os->nb_chapters++;
1935         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1936         if (!os->chapters)
1937             return AVERROR(ENOMEM);
1938         os->chapters[os->nb_chapters - 1] = out_ch;
1939     }
1940     return 0;
1941 }
1942
1943 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1944                                     AVCodecContext *avctx)
1945 {
1946     char *p;
1947     int n = 1, i;
1948     int64_t t;
1949
1950     for (p = kf; *p; p++)
1951         if (*p == ',')
1952             n++;
1953     ost->forced_kf_count = n;
1954     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1955     if (!ost->forced_kf_pts) {
1956         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1957         ffmpeg_exit(1);
1958     }
1959     for (i = 0; i < n; i++) {
1960         p = i ? strchr(p, ',') + 1 : kf;
1961         t = parse_time_or_die("force_key_frames", p, 1);
1962         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1963     }
1964 }
1965
1966 /*
1967  * The following code is the main loop of the file converter
1968  */
1969 static int transcode(AVFormatContext **output_files,
1970                      int nb_output_files,
1971                      AVFormatContext **input_files,
1972                      int nb_input_files,
1973                      AVStreamMap *stream_maps, int nb_stream_maps)
1974 {
1975     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, step;
1976     AVFormatContext *is, *os;
1977     AVCodecContext *codec, *icodec;
1978     AVOutputStream *ost, **ost_table = NULL;
1979     AVInputStream *ist, **ist_table = NULL;
1980     AVInputFile *file_table;
1981     char error[1024];
1982     int key;
1983     int want_sdp = 1;
1984     uint8_t no_packet[MAX_FILES]={0};
1985     int no_packet_count=0;
1986     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
1987     int nb_streams[AVMEDIA_TYPE_NB]={0};
1988
1989     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1990     if (!file_table)
1991         goto fail;
1992
1993     /* input stream init */
1994     j = 0;
1995     for(i=0;i<nb_input_files;i++) {
1996         is = input_files[i];
1997         file_table[i].ist_index = j;
1998         file_table[i].nb_streams = is->nb_streams;
1999         j += is->nb_streams;
2000     }
2001     nb_istreams = j;
2002
2003     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
2004     if (!ist_table)
2005         goto fail;
2006
2007     for(i=0;i<nb_istreams;i++) {
2008         ist = av_mallocz(sizeof(AVInputStream));
2009         if (!ist)
2010             goto fail;
2011         ist_table[i] = ist;
2012     }
2013     j = 0;
2014     for(i=0;i<nb_input_files;i++) {
2015         is = input_files[i];
2016         for(k=0;k<is->nb_streams;k++) {
2017             ist = ist_table[j++];
2018             ist->st = is->streams[k];
2019             ist->file_index = i;
2020             ist->index = k;
2021             ist->discard = 1; /* the stream is discarded by default
2022                                  (changed later) */
2023
2024             if (rate_emu) {
2025                 ist->start = av_gettime();
2026             }
2027         }
2028     }
2029
2030     /* output stream init */
2031     nb_ostreams = 0;
2032     for(i=0;i<nb_output_files;i++) {
2033         os = output_files[i];
2034         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2035             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2036             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2037             ret = AVERROR(EINVAL);
2038             goto fail;
2039         }
2040         nb_ostreams += os->nb_streams;
2041     }
2042     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2043         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2044         ret = AVERROR(EINVAL);
2045         goto fail;
2046     }
2047
2048     /* Sanity check the mapping args -- do the input files & streams exist? */
2049     for(i=0;i<nb_stream_maps;i++) {
2050         int fi = stream_maps[i].file_index;
2051         int si = stream_maps[i].stream_index;
2052
2053         if (fi < 0 || fi > nb_input_files - 1 ||
2054             si < 0 || si > file_table[fi].nb_streams - 1) {
2055             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2056             ret = AVERROR(EINVAL);
2057             goto fail;
2058         }
2059         fi = stream_maps[i].sync_file_index;
2060         si = stream_maps[i].sync_stream_index;
2061         if (fi < 0 || fi > nb_input_files - 1 ||
2062             si < 0 || si > file_table[fi].nb_streams - 1) {
2063             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2064             ret = AVERROR(EINVAL);
2065             goto fail;
2066         }
2067     }
2068
2069     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2070     if (!ost_table)
2071         goto fail;
2072
2073     for(k=0;k<nb_output_files;k++) {
2074         os = output_files[k];
2075         for(i=0;i<os->nb_streams;i++,n++) {
2076             nb_streams[os->streams[i]->codec->codec_type]++;
2077         }
2078     }
2079     for(step=1<<30; step; step>>=1){
2080         int found_streams[AVMEDIA_TYPE_NB]={0};
2081         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2082             nb_frame_threshold[j] += step;
2083
2084         for(j=0; j<nb_istreams; j++) {
2085             int skip=0;
2086             ist = ist_table[j];
2087             if(opt_programid){
2088                 int pi,si;
2089                 AVFormatContext *f= input_files[ ist->file_index ];
2090                 skip=1;
2091                 for(pi=0; pi<f->nb_programs; pi++){
2092                     AVProgram *p= f->programs[pi];
2093                     if(p->id == opt_programid)
2094                         for(si=0; si<p->nb_stream_indexes; si++){
2095                             if(f->streams[ p->stream_index[si] ] == ist->st)
2096                                 skip=0;
2097                         }
2098                 }
2099             }
2100             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2101                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2102                 found_streams[ist->st->codec->codec_type]++;
2103             }
2104         }
2105         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2106             if(found_streams[j] < nb_streams[j])
2107                 nb_frame_threshold[j] -= step;
2108     }
2109     n = 0;
2110     for(k=0;k<nb_output_files;k++) {
2111         os = output_files[k];
2112         for(i=0;i<os->nb_streams;i++,n++) {
2113             int found;
2114             ost = ost_table[n] = output_streams_for_file[k][i];
2115             ost->st = os->streams[i];
2116             if (nb_stream_maps > 0) {
2117                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2118                     stream_maps[n].stream_index;
2119
2120                 /* Sanity check that the stream types match */
2121                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2122                     int i= ost->file_index;
2123                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2124                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2125                         stream_maps[n].file_index, stream_maps[n].stream_index,
2126                         ost->file_index, ost->index);
2127                     ffmpeg_exit(1);
2128                 }
2129
2130             } else {
2131                 /* get corresponding input stream index : we select the first one with the right type */
2132                 found = 0;
2133                 for(j=0;j<nb_istreams;j++) {
2134                     int skip=0;
2135                     ist = ist_table[j];
2136                     if(opt_programid){
2137                         int pi,si;
2138                         AVFormatContext *f= input_files[ ist->file_index ];
2139                         skip=1;
2140                         for(pi=0; pi<f->nb_programs; pi++){
2141                             AVProgram *p= f->programs[pi];
2142                             if(p->id == opt_programid)
2143                                 for(si=0; si<p->nb_stream_indexes; si++){
2144                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2145                                         skip=0;
2146                                 }
2147                         }
2148                     }
2149                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2150                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2151                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2152                             ost->source_index = j;
2153                             found = 1;
2154                             break;
2155                     }
2156                 }
2157
2158                 if (!found) {
2159                     if(! opt_programid) {
2160                         /* try again and reuse existing stream */
2161                         for(j=0;j<nb_istreams;j++) {
2162                             ist = ist_table[j];
2163                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2164                                 && ist->st->discard != AVDISCARD_ALL) {
2165                                 ost->source_index = j;
2166                                 found = 1;
2167                             }
2168                         }
2169                     }
2170                     if (!found) {
2171                         int i= ost->file_index;
2172                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2173                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2174                                 ost->file_index, ost->index);
2175                         ffmpeg_exit(1);
2176                     }
2177                 }
2178             }
2179             ist = ist_table[ost->source_index];
2180             ist->discard = 0;
2181             ost->sync_ist = (nb_stream_maps > 0) ?
2182                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2183                          stream_maps[n].sync_stream_index] : ist;
2184         }
2185     }
2186
2187     /* for each output stream, we compute the right encoding parameters */
2188     for(i=0;i<nb_ostreams;i++) {
2189         ost = ost_table[i];
2190         os = output_files[ost->file_index];
2191         ist = ist_table[ost->source_index];
2192
2193         codec = ost->st->codec;
2194         icodec = ist->st->codec;
2195
2196         if (metadata_streams_autocopy)
2197             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2198                              AV_METADATA_DONT_OVERWRITE);
2199
2200         ost->st->disposition = ist->st->disposition;
2201         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2202         codec->chroma_sample_location = icodec->chroma_sample_location;
2203
2204         if (ost->st->stream_copy) {
2205             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2206
2207             if (extra_size > INT_MAX)
2208                 goto fail;
2209
2210             /* if stream_copy is selected, no need to decode or encode */
2211             codec->codec_id = icodec->codec_id;
2212             codec->codec_type = icodec->codec_type;
2213
2214             if(!codec->codec_tag){
2215                 if(   !os->oformat->codec_tag
2216                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2217                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2218                     codec->codec_tag = icodec->codec_tag;
2219             }
2220
2221             codec->bit_rate = icodec->bit_rate;
2222             codec->rc_max_rate    = icodec->rc_max_rate;
2223             codec->rc_buffer_size = icodec->rc_buffer_size;
2224             codec->extradata= av_mallocz(extra_size);
2225             if (!codec->extradata)
2226                 goto fail;
2227             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2228             codec->extradata_size= icodec->extradata_size;
2229             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){
2230                 codec->time_base = icodec->time_base;
2231                 codec->time_base.num *= icodec->ticks_per_frame;
2232                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2233                           codec->time_base.num, codec->time_base.den, INT_MAX);
2234             }else
2235                 codec->time_base = ist->st->time_base;
2236             switch(codec->codec_type) {
2237             case AVMEDIA_TYPE_AUDIO:
2238                 if(audio_volume != 256) {
2239                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2240                     ffmpeg_exit(1);
2241                 }
2242                 codec->channel_layout = icodec->channel_layout;
2243                 codec->sample_rate = icodec->sample_rate;
2244                 codec->channels = icodec->channels;
2245                 codec->frame_size = icodec->frame_size;
2246                 codec->audio_service_type = icodec->audio_service_type;
2247                 codec->block_align= icodec->block_align;
2248                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2249                     codec->block_align= 0;
2250                 if(codec->codec_id == CODEC_ID_AC3)
2251                     codec->block_align= 0;
2252                 break;
2253             case AVMEDIA_TYPE_VIDEO:
2254                 codec->pix_fmt = icodec->pix_fmt;
2255                 codec->width = icodec->width;
2256                 codec->height = icodec->height;
2257                 codec->has_b_frames = icodec->has_b_frames;
2258                 if (!codec->sample_aspect_ratio.num) {
2259                     codec->sample_aspect_ratio =
2260                     ost->st->sample_aspect_ratio =
2261                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2262                         ist->st->codec->sample_aspect_ratio.num ?
2263                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2264                 }
2265                 break;
2266             case AVMEDIA_TYPE_SUBTITLE:
2267                 codec->width = icodec->width;
2268                 codec->height = icodec->height;
2269                 break;
2270             case AVMEDIA_TYPE_DATA:
2271                 break;
2272             default:
2273                 abort();
2274             }
2275         } else {
2276             switch(codec->codec_type) {
2277             case AVMEDIA_TYPE_AUDIO:
2278                 ost->fifo= av_fifo_alloc(1024);
2279                 if(!ost->fifo)
2280                     goto fail;
2281                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2282                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2283                 icodec->request_channels = codec->channels;
2284                 ist->decoding_needed = 1;
2285                 ost->encoding_needed = 1;
2286                 ost->resample_sample_fmt  = icodec->sample_fmt;
2287                 ost->resample_sample_rate = icodec->sample_rate;
2288                 ost->resample_channels    = icodec->channels;
2289                 break;
2290             case AVMEDIA_TYPE_VIDEO:
2291                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2292                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2293                     ffmpeg_exit(1);
2294                 }
2295                 ost->video_resample = codec->width   != icodec->width  ||
2296                                       codec->height  != icodec->height ||
2297                                       codec->pix_fmt != icodec->pix_fmt;
2298                 if (ost->video_resample) {
2299                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2300                 }
2301                 ost->resample_height = icodec->height;
2302                 ost->resample_width  = icodec->width;
2303                 ost->resample_pix_fmt= icodec->pix_fmt;
2304                 ost->encoding_needed = 1;
2305                 ist->decoding_needed = 1;
2306
2307 #if CONFIG_AVFILTER
2308                 if (configure_video_filters(ist, ost)) {
2309                     fprintf(stderr, "Error opening filters!\n");
2310                     exit(1);
2311                 }
2312 #endif
2313                 break;
2314             case AVMEDIA_TYPE_SUBTITLE:
2315                 ost->encoding_needed = 1;
2316                 ist->decoding_needed = 1;
2317                 break;
2318             default:
2319                 abort();
2320                 break;
2321             }
2322             /* two pass mode */
2323             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2324                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2325                 char logfilename[1024];
2326                 FILE *f;
2327
2328                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2329                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2330                          i);
2331                 if (codec->flags & CODEC_FLAG_PASS1) {
2332                     f = fopen(logfilename, "wb");
2333                     if (!f) {
2334                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2335                         ffmpeg_exit(1);
2336                     }
2337                     ost->logfile = f;
2338                 } else {
2339                     char  *logbuffer;
2340                     size_t logbuffer_size;
2341                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2342                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2343                         ffmpeg_exit(1);
2344                     }
2345                     codec->stats_in = logbuffer;
2346                 }
2347             }
2348         }
2349         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2350             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2351             int size= codec->width * codec->height;
2352             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2353         }
2354     }
2355
2356     if (!bit_buffer)
2357         bit_buffer = av_malloc(bit_buffer_size);
2358     if (!bit_buffer) {
2359         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2360                 bit_buffer_size);
2361         ret = AVERROR(ENOMEM);
2362         goto fail;
2363     }
2364
2365     /* open each encoder */
2366     for(i=0;i<nb_ostreams;i++) {
2367         ost = ost_table[i];
2368         if (ost->encoding_needed) {
2369             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2370             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2371             if (!codec)
2372                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2373             if (!codec) {
2374                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2375                          ost->st->codec->codec_id, ost->file_index, ost->index);
2376                 ret = AVERROR(EINVAL);
2377                 goto dump_format;
2378             }
2379             if (dec->subtitle_header) {
2380                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2381                 if (!ost->st->codec->subtitle_header) {
2382                     ret = AVERROR(ENOMEM);
2383                     goto dump_format;
2384                 }
2385                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2386                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2387             }
2388             if (avcodec_open(ost->st->codec, codec) < 0) {
2389                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2390                         ost->file_index, ost->index);
2391                 ret = AVERROR(EINVAL);
2392                 goto dump_format;
2393             }
2394             extra_size += ost->st->codec->extradata_size;
2395         }
2396     }
2397
2398     /* open each decoder */
2399     for(i=0;i<nb_istreams;i++) {
2400         ist = ist_table[i];
2401         if (ist->decoding_needed) {
2402             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2403             if (!codec)
2404                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2405             if (!codec) {
2406                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2407                         ist->st->codec->codec_id, ist->file_index, ist->index);
2408                 ret = AVERROR(EINVAL);
2409                 goto dump_format;
2410             }
2411             if (avcodec_open(ist->st->codec, codec) < 0) {
2412                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2413                         ist->file_index, ist->index);
2414                 ret = AVERROR(EINVAL);
2415                 goto dump_format;
2416             }
2417             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2418             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2419         }
2420     }
2421
2422     /* init pts */
2423     for(i=0;i<nb_istreams;i++) {
2424         AVStream *st;
2425         ist = ist_table[i];
2426         st= ist->st;
2427         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2428         ist->next_pts = AV_NOPTS_VALUE;
2429         ist->is_start = 1;
2430     }
2431
2432     /* set meta data information from input file if required */
2433     for (i=0;i<nb_meta_data_maps;i++) {
2434         AVFormatContext *files[2];
2435         AVMetadata      **meta[2];
2436         int j;
2437
2438 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2439         if ((index) < 0 || (index) >= (nb_elems)) {\
2440             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2441                      (desc), (index));\
2442             ret = AVERROR(EINVAL);\
2443             goto dump_format;\
2444         }
2445
2446         int out_file_index = meta_data_maps[i][0].file;
2447         int in_file_index = meta_data_maps[i][1].file;
2448         if (in_file_index < 0 || out_file_index < 0)
2449             continue;
2450         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2451         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2452
2453         files[0] = output_files[out_file_index];
2454         files[1] = input_files[in_file_index];
2455
2456         for (j = 0; j < 2; j++) {
2457             AVMetaDataMap *map = &meta_data_maps[i][j];
2458
2459             switch (map->type) {
2460             case 'g':
2461                 meta[j] = &files[j]->metadata;
2462                 break;
2463             case 's':
2464                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2465                 meta[j] = &files[j]->streams[map->index]->metadata;
2466                 break;
2467             case 'c':
2468                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2469                 meta[j] = &files[j]->chapters[map->index]->metadata;
2470                 break;
2471             case 'p':
2472                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2473                 meta[j] = &files[j]->programs[map->index]->metadata;
2474                 break;
2475             }
2476         }
2477
2478         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2479     }
2480
2481     /* copy global metadata by default */
2482     if (metadata_global_autocopy) {
2483
2484         for (i = 0; i < nb_output_files; i++)
2485             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2486                              AV_METADATA_DONT_OVERWRITE);
2487     }
2488
2489     /* copy chapters according to chapter maps */
2490     for (i = 0; i < nb_chapter_maps; i++) {
2491         int infile  = chapter_maps[i].in_file;
2492         int outfile = chapter_maps[i].out_file;
2493
2494         if (infile < 0 || outfile < 0)
2495             continue;
2496         if (infile >= nb_input_files) {
2497             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2498             ret = AVERROR(EINVAL);
2499             goto dump_format;
2500         }
2501         if (outfile >= nb_output_files) {
2502             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2503             ret = AVERROR(EINVAL);
2504             goto dump_format;
2505         }
2506         copy_chapters(infile, outfile);
2507     }
2508
2509     /* copy chapters from the first input file that has them*/
2510     if (!nb_chapter_maps)
2511         for (i = 0; i < nb_input_files; i++) {
2512             if (!input_files[i]->nb_chapters)
2513                 continue;
2514
2515             for (j = 0; j < nb_output_files; j++)
2516                 if ((ret = copy_chapters(i, j)) < 0)
2517                     goto dump_format;
2518             break;
2519         }
2520
2521     /* open files and write file headers */
2522     for(i=0;i<nb_output_files;i++) {
2523         os = output_files[i];
2524         if (av_write_header(os) < 0) {
2525             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2526             ret = AVERROR(EINVAL);
2527             goto dump_format;
2528         }
2529         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2530             want_sdp = 0;
2531         }
2532     }
2533
2534  dump_format:
2535     /* dump the file output parameters - cannot be done before in case
2536        of stream copy */
2537     for(i=0;i<nb_output_files;i++) {
2538         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2539     }
2540
2541     /* dump the stream mapping */
2542     if (verbose >= 0) {
2543         fprintf(stderr, "Stream mapping:\n");
2544         for(i=0;i<nb_ostreams;i++) {
2545             ost = ost_table[i];
2546             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2547                     ist_table[ost->source_index]->file_index,
2548                     ist_table[ost->source_index]->index,
2549                     ost->file_index,
2550                     ost->index);
2551             if (ost->sync_ist != ist_table[ost->source_index])
2552                 fprintf(stderr, " [sync #%d.%d]",
2553                         ost->sync_ist->file_index,
2554                         ost->sync_ist->index);
2555             fprintf(stderr, "\n");
2556         }
2557     }
2558
2559     if (ret) {
2560         fprintf(stderr, "%s\n", error);
2561         goto fail;
2562     }
2563
2564     if (want_sdp) {
2565         print_sdp(output_files, nb_output_files);
2566     }
2567
2568     if (!using_stdin) {
2569         if(verbose >= 0)
2570             fprintf(stderr, "Press [q] to stop encoding\n");
2571         avio_set_interrupt_cb(decode_interrupt_cb);
2572     }
2573     term_init();
2574
2575     timer_start = av_gettime();
2576
2577     for(; received_sigterm == 0;) {
2578         int file_index, ist_index;
2579         AVPacket pkt;
2580         double ipts_min;
2581         double opts_min;
2582
2583     redo:
2584         ipts_min= 1e100;
2585         opts_min= 1e100;
2586         /* if 'q' pressed, exits */
2587         if (!using_stdin) {
2588             if (q_pressed)
2589                 break;
2590             /* read_key() returns 0 on EOF */
2591             key = read_key();
2592             if (key == 'q')
2593                 break;
2594         }
2595
2596         /* select the stream that we must read now by looking at the
2597            smallest output pts */
2598         file_index = -1;
2599         for(i=0;i<nb_ostreams;i++) {
2600             double ipts, opts;
2601             ost = ost_table[i];
2602             os = output_files[ost->file_index];
2603             ist = ist_table[ost->source_index];
2604             if(ist->is_past_recording_time || no_packet[ist->file_index])
2605                 continue;
2606                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2607             ipts = (double)ist->pts;
2608             if (!file_table[ist->file_index].eof_reached){
2609                 if(ipts < ipts_min) {
2610                     ipts_min = ipts;
2611                     if(input_sync ) file_index = ist->file_index;
2612                 }
2613                 if(opts < opts_min) {
2614                     opts_min = opts;
2615                     if(!input_sync) file_index = ist->file_index;
2616                 }
2617             }
2618             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2619                 file_index= -1;
2620                 break;
2621             }
2622         }
2623         /* if none, if is finished */
2624         if (file_index < 0) {
2625             if(no_packet_count){
2626                 no_packet_count=0;
2627                 memset(no_packet, 0, sizeof(no_packet));
2628                 usleep(10000);
2629                 continue;
2630             }
2631             break;
2632         }
2633
2634         /* finish if limit size exhausted */
2635         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2636             break;
2637
2638         /* read a frame from it and output it in the fifo */
2639         is = input_files[file_index];
2640         ret= av_read_frame(is, &pkt);
2641         if(ret == AVERROR(EAGAIN)){
2642             no_packet[file_index]=1;
2643             no_packet_count++;
2644             continue;
2645         }
2646         if (ret < 0) {
2647             file_table[file_index].eof_reached = 1;
2648             if (opt_shortest)
2649                 break;
2650             else
2651                 continue;
2652         }
2653
2654         no_packet_count=0;
2655         memset(no_packet, 0, sizeof(no_packet));
2656
2657         if (do_pkt_dump) {
2658             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2659                              is->streams[pkt.stream_index]);
2660         }
2661         /* the following test is needed in case new streams appear
2662            dynamically in stream : we ignore them */
2663         if (pkt.stream_index >= file_table[file_index].nb_streams)
2664             goto discard_packet;
2665         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2666         ist = ist_table[ist_index];
2667         if (ist->discard)
2668             goto discard_packet;
2669
2670         if (pkt.dts != AV_NOPTS_VALUE)
2671             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2672         if (pkt.pts != AV_NOPTS_VALUE)
2673             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2674
2675         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2676             && input_files_ts_scale[file_index][pkt.stream_index]){
2677             if(pkt.pts != AV_NOPTS_VALUE)
2678                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2679             if(pkt.dts != AV_NOPTS_VALUE)
2680                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2681         }
2682
2683 //        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);
2684         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2685             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2686             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2687             int64_t delta= pkt_dts - ist->next_pts;
2688             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2689                 input_files_ts_offset[ist->file_index]-= delta;
2690                 if (verbose > 2)
2691                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2692                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2693                 if(pkt.pts != AV_NOPTS_VALUE)
2694                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2695             }
2696         }
2697
2698         /* finish if recording time exhausted */
2699         if (recording_time != INT64_MAX &&
2700             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2701             ist->is_past_recording_time = 1;
2702             goto discard_packet;
2703         }
2704
2705         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2706         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2707
2708             if (verbose >= 0)
2709                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2710                         ist->file_index, ist->index);
2711             if (exit_on_error)
2712                 ffmpeg_exit(1);
2713             av_free_packet(&pkt);
2714             goto redo;
2715         }
2716
2717     discard_packet:
2718         av_free_packet(&pkt);
2719
2720         /* dump report by using the output first video and audio streams */
2721         print_report(output_files, ost_table, nb_ostreams, 0);
2722     }
2723
2724     /* at the end of stream, we must flush the decoder buffers */
2725     for(i=0;i<nb_istreams;i++) {
2726         ist = ist_table[i];
2727         if (ist->decoding_needed) {
2728             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2729         }
2730     }
2731
2732     term_exit();
2733
2734     /* write the trailer if needed and close file */
2735     for(i=0;i<nb_output_files;i++) {
2736         os = output_files[i];
2737         av_write_trailer(os);
2738     }
2739
2740     /* dump report by using the first video and audio streams */
2741     print_report(output_files, ost_table, nb_ostreams, 1);
2742
2743     /* close each encoder */
2744     for(i=0;i<nb_ostreams;i++) {
2745         ost = ost_table[i];
2746         if (ost->encoding_needed) {
2747             av_freep(&ost->st->codec->stats_in);
2748             avcodec_close(ost->st->codec);
2749         }
2750 #if CONFIG_AVFILTER
2751         avfilter_graph_free(&ost->graph);
2752 #endif
2753     }
2754
2755     /* close each decoder */
2756     for(i=0;i<nb_istreams;i++) {
2757         ist = ist_table[i];
2758         if (ist->decoding_needed) {
2759             avcodec_close(ist->st->codec);
2760         }
2761     }
2762
2763     /* finished ! */
2764     ret = 0;
2765
2766  fail:
2767     av_freep(&bit_buffer);
2768     av_free(file_table);
2769
2770     if (ist_table) {
2771         for(i=0;i<nb_istreams;i++) {
2772             ist = ist_table[i];
2773             av_free(ist);
2774         }
2775         av_free(ist_table);
2776     }
2777     if (ost_table) {
2778         for(i=0;i<nb_ostreams;i++) {
2779             ost = ost_table[i];
2780             if (ost) {
2781                 if (ost->st->stream_copy)
2782                     av_freep(&ost->st->codec->extradata);
2783                 if (ost->logfile) {
2784                     fclose(ost->logfile);
2785                     ost->logfile = NULL;
2786                 }
2787                 av_fifo_free(ost->fifo); /* works even if fifo is not
2788                                              initialized but set to zero */
2789                 av_freep(&ost->st->codec->subtitle_header);
2790                 av_free(ost->resample_frame.data[0]);
2791                 av_free(ost->forced_kf_pts);
2792                 if (ost->video_resample)
2793                     sws_freeContext(ost->img_resample_ctx);
2794                 if (ost->resample)
2795                     audio_resample_close(ost->resample);
2796                 if (ost->reformat_ctx)
2797                     av_audio_convert_free(ost->reformat_ctx);
2798                 av_free(ost);
2799             }
2800         }
2801         av_free(ost_table);
2802     }
2803     return ret;
2804 }
2805
2806 static void opt_format(const char *arg)
2807 {
2808     last_asked_format = arg;
2809 }
2810
2811 static void opt_video_rc_override_string(const char *arg)
2812 {
2813     video_rc_override_string = arg;
2814 }
2815
2816 static int opt_me_threshold(const char *opt, const char *arg)
2817 {
2818     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2819     return 0;
2820 }
2821
2822 static int opt_verbose(const char *opt, const char *arg)
2823 {
2824     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2825     return 0;
2826 }
2827
2828 static int opt_frame_rate(const char *opt, const char *arg)
2829 {
2830     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2831         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2832         ffmpeg_exit(1);
2833     }
2834     return 0;
2835 }
2836
2837 static int opt_bitrate(const char *opt, const char *arg)
2838 {
2839     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2840
2841     opt_default(opt, arg);
2842
2843     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2844         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2845
2846     return 0;
2847 }
2848
2849 static int opt_frame_crop(const char *opt, const char *arg)
2850 {
2851     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2852     return AVERROR(EINVAL);
2853 }
2854
2855 static void opt_frame_size(const char *arg)
2856 {
2857     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2858         fprintf(stderr, "Incorrect frame size\n");
2859         ffmpeg_exit(1);
2860     }
2861 }
2862
2863 static int opt_pad(const char *opt, const char *arg) {
2864     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2865     return -1;
2866 }
2867
2868 static void opt_frame_pix_fmt(const char *arg)
2869 {
2870     if (strcmp(arg, "list")) {
2871         frame_pix_fmt = av_get_pix_fmt(arg);
2872         if (frame_pix_fmt == PIX_FMT_NONE) {
2873             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2874             ffmpeg_exit(1);
2875         }
2876     } else {
2877         show_pix_fmts();
2878         ffmpeg_exit(0);
2879     }
2880 }
2881
2882 static void opt_frame_aspect_ratio(const char *arg)
2883 {
2884     int x = 0, y = 0;
2885     double ar = 0;
2886     const char *p;
2887     char *end;
2888
2889     p = strchr(arg, ':');
2890     if (p) {
2891         x = strtol(arg, &end, 10);
2892         if (end == p)
2893             y = strtol(end+1, &end, 10);
2894         if (x > 0 && y > 0)
2895             ar = (double)x / (double)y;
2896     } else
2897         ar = strtod(arg, NULL);
2898
2899     if (!ar) {
2900         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2901         ffmpeg_exit(1);
2902     }
2903     frame_aspect_ratio = ar;
2904 }
2905
2906 static int opt_metadata(const char *opt, const char *arg)
2907 {
2908     char *mid= strchr(arg, '=');
2909
2910     if(!mid){
2911         fprintf(stderr, "Missing =\n");
2912         ffmpeg_exit(1);
2913     }
2914     *mid++= 0;
2915
2916     av_metadata_set2(&metadata, arg, mid, 0);
2917
2918     return 0;
2919 }
2920
2921 static int opt_qscale(const char *opt, const char *arg)
2922 {
2923     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2924     if (video_qscale <= 0 || video_qscale > 255) {
2925         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2926         return AVERROR(EINVAL);
2927     }
2928     return 0;
2929 }
2930
2931 static int opt_top_field_first(const char *opt, const char *arg)
2932 {
2933     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2934     return 0;
2935 }
2936
2937 static int opt_thread_count(const char *opt, const char *arg)
2938 {
2939     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2940 #if !HAVE_THREADS
2941     if (verbose >= 0)
2942         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2943 #endif
2944     return 0;
2945 }
2946
2947 static void opt_audio_sample_fmt(const char *arg)
2948 {
2949     if (strcmp(arg, "list")) {
2950         audio_sample_fmt = av_get_sample_fmt(arg);
2951         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2952             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2953             ffmpeg_exit(1);
2954         }
2955     } else {
2956         int i;
2957         char fmt_str[128];
2958         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2959             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2960         ffmpeg_exit(0);
2961     }
2962 }
2963
2964 static int opt_audio_rate(const char *opt, const char *arg)
2965 {
2966     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2967     return 0;
2968 }
2969
2970 static int opt_audio_channels(const char *opt, const char *arg)
2971 {
2972     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2973     return 0;
2974 }
2975
2976 static int opt_video_channel(const char *opt, const char *arg)
2977 {
2978     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2979     return 0;
2980 }
2981
2982 static void opt_video_standard(const char *arg)
2983 {
2984     video_standard = av_strdup(arg);
2985 }
2986
2987 static void opt_codec(int *pstream_copy, char **pcodec_name,
2988                       int codec_type, const char *arg)
2989 {
2990     av_freep(pcodec_name);
2991     if (!strcmp(arg, "copy")) {
2992         *pstream_copy = 1;
2993     } else {
2994         *pcodec_name = av_strdup(arg);
2995     }
2996 }
2997
2998 static void opt_audio_codec(const char *arg)
2999 {
3000     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
3001 }
3002
3003 static void opt_video_codec(const char *arg)
3004 {
3005     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
3006 }
3007
3008 static void opt_subtitle_codec(const char *arg)
3009 {
3010     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
3011 }
3012
3013 static void opt_data_codec(const char *arg)
3014 {
3015     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
3016 }
3017
3018 static int opt_codec_tag(const char *opt, const char *arg)
3019 {
3020     char *tail;
3021     uint32_t *codec_tag;
3022
3023     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3024                 !strcmp(opt, "vtag") ? &video_codec_tag :
3025                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3026     if (!codec_tag)
3027         return -1;
3028
3029     *codec_tag = strtol(arg, &tail, 0);
3030     if (!tail || *tail)
3031         *codec_tag = AV_RL32(arg);
3032
3033     return 0;
3034 }
3035
3036 static void opt_map(const char *arg)
3037 {
3038     AVStreamMap *m;
3039     char *p;
3040
3041     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3042     m = &stream_maps[nb_stream_maps-1];
3043
3044     m->file_index = strtol(arg, &p, 0);
3045     if (*p)
3046         p++;
3047
3048     m->stream_index = strtol(p, &p, 0);
3049     if (*p) {
3050         p++;
3051         m->sync_file_index = strtol(p, &p, 0);
3052         if (*p)
3053             p++;
3054         m->sync_stream_index = strtol(p, &p, 0);
3055     } else {
3056         m->sync_file_index = m->file_index;
3057         m->sync_stream_index = m->stream_index;
3058     }
3059 }
3060
3061 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3062 {
3063     *endptr = arg;
3064     if (*arg == ',') {
3065         *type = *(++arg);
3066         switch (*arg) {
3067         case 'g':
3068             break;
3069         case 's':
3070         case 'c':
3071         case 'p':
3072             *index = strtol(++arg, endptr, 0);
3073             break;
3074         default:
3075             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3076             ffmpeg_exit(1);
3077         }
3078     } else
3079         *type = 'g';
3080 }
3081
3082 static void opt_map_metadata(const char *arg)
3083 {
3084     AVMetaDataMap *m, *m1;
3085     char *p;
3086
3087     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3088                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3089
3090     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3091     m->file = strtol(arg, &p, 0);
3092     parse_meta_type(p, &m->type, &m->index, &p);
3093     if (*p)
3094         p++;
3095
3096     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3097     m1->file = strtol(p, &p, 0);
3098     parse_meta_type(p, &m1->type, &m1->index, &p);
3099
3100     if (m->type == 'g' || m1->type == 'g')
3101         metadata_global_autocopy = 0;
3102     if (m->type == 's' || m1->type == 's')
3103         metadata_streams_autocopy = 0;
3104     if (m->type == 'c' || m1->type == 'c')
3105         metadata_chapters_autocopy = 0;
3106 }
3107
3108 static void opt_map_meta_data(const char *arg)
3109 {
3110     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3111                     "Use -map_metadata instead.\n");
3112     opt_map_metadata(arg);
3113 }
3114
3115 static void opt_map_chapters(const char *arg)
3116 {
3117     AVChapterMap *c;
3118     char *p;
3119
3120     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3121                               nb_chapter_maps + 1);
3122     c = &chapter_maps[nb_chapter_maps - 1];
3123     c->out_file = strtol(arg, &p, 0);
3124     if (*p)
3125         p++;
3126
3127     c->in_file = strtol(p, &p, 0);
3128 }
3129
3130 static void opt_input_ts_scale(const char *arg)
3131 {
3132     unsigned int stream;
3133     double scale;
3134     char *p;
3135
3136     stream = strtol(arg, &p, 0);
3137     if (*p)
3138         p++;
3139     scale= strtod(p, &p);
3140
3141     if(stream >= MAX_STREAMS)
3142         ffmpeg_exit(1);
3143
3144     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);
3145     input_files_ts_scale[nb_input_files][stream]= scale;
3146 }
3147
3148 static int opt_recording_time(const char *opt, const char *arg)
3149 {
3150     recording_time = parse_time_or_die(opt, arg, 1);
3151     return 0;
3152 }
3153
3154 static int opt_start_time(const char *opt, const char *arg)
3155 {
3156     start_time = parse_time_or_die(opt, arg, 1);
3157     return 0;
3158 }
3159
3160 static int opt_recording_timestamp(const char *opt, const char *arg)
3161 {
3162     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3163     return 0;
3164 }
3165
3166 static int opt_input_ts_offset(const char *opt, const char *arg)
3167 {
3168     input_ts_offset = parse_time_or_die(opt, arg, 1);
3169     return 0;
3170 }
3171
3172 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3173 {
3174     const char *codec_string = encoder ? "encoder" : "decoder";
3175     AVCodec *codec;
3176
3177     if(!name)
3178         return CODEC_ID_NONE;
3179     codec = encoder ?
3180         avcodec_find_encoder_by_name(name) :
3181         avcodec_find_decoder_by_name(name);
3182     if(!codec) {
3183         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3184         ffmpeg_exit(1);
3185     }
3186     if(codec->type != type) {
3187         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3188         ffmpeg_exit(1);
3189     }
3190     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3191        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3192         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3193                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3194                 codec_string, codec->name);
3195         codec = encoder ?
3196             avcodec_find_encoder(codec->id) :
3197             avcodec_find_decoder(codec->id);
3198         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3199             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3200                     codec_string, codec->name);
3201         ffmpeg_exit(1);
3202     }
3203     return codec->id;
3204 }
3205
3206 static void opt_input_file(const char *filename)
3207 {
3208     AVFormatContext *ic;
3209     AVFormatParameters params, *ap = &params;
3210     AVInputFormat *file_iformat = NULL;
3211     int err, i, ret, rfps, rfps_base;
3212     int64_t timestamp;
3213
3214     if (last_asked_format) {
3215         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3216             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3217             ffmpeg_exit(1);
3218         }
3219         last_asked_format = NULL;
3220     }
3221
3222     if (!strcmp(filename, "-"))
3223         filename = "pipe:";
3224
3225     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3226                     !strcmp(filename, "/dev/stdin");
3227
3228     /* get default parameters from command line */
3229     ic = avformat_alloc_context();
3230     if (!ic) {
3231         print_error(filename, AVERROR(ENOMEM));
3232         ffmpeg_exit(1);
3233     }
3234
3235     memset(ap, 0, sizeof(*ap));
3236     ap->prealloced_context = 1;
3237     ap->sample_rate = audio_sample_rate;
3238     ap->channels = audio_channels;
3239     ap->time_base.den = frame_rate.num;
3240     ap->time_base.num = frame_rate.den;
3241     ap->width = frame_width;
3242     ap->height = frame_height;
3243     ap->pix_fmt = frame_pix_fmt;
3244    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3245     ap->channel = video_channel;
3246     ap->standard = video_standard;
3247
3248     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3249
3250     ic->video_codec_id   =
3251         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3252                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3253     ic->audio_codec_id   =
3254         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3255                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3256     ic->subtitle_codec_id=
3257         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3258                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3259     ic->flags |= AVFMT_FLAG_NONBLOCK | AVFMT_FLAG_PRIV_OPT;
3260
3261     /* open the input file with generic libav function */
3262     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3263     if(err >= 0){
3264         set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3265         err = av_demuxer_open(ic, ap);
3266         if(err < 0)
3267             avformat_free_context(ic);
3268     }
3269     if (err < 0) {
3270         print_error(filename, err);
3271         ffmpeg_exit(1);
3272     }
3273     if(opt_programid) {
3274         int i, j;
3275         int found=0;
3276         for(i=0; i<ic->nb_streams; i++){
3277             ic->streams[i]->discard= AVDISCARD_ALL;
3278         }
3279         for(i=0; i<ic->nb_programs; i++){
3280             AVProgram *p= ic->programs[i];
3281             if(p->id != opt_programid){
3282                 p->discard = AVDISCARD_ALL;
3283             }else{
3284                 found=1;
3285                 for(j=0; j<p->nb_stream_indexes; j++){
3286                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3287                 }
3288             }
3289         }
3290         if(!found){
3291             fprintf(stderr, "Specified program id not found\n");
3292             ffmpeg_exit(1);
3293         }
3294         opt_programid=0;
3295     }
3296
3297     ic->loop_input = loop_input;
3298
3299     /* If not enough info to get the stream parameters, we decode the
3300        first frames to get it. (used in mpeg case for example) */
3301     ret = av_find_stream_info(ic);
3302     if (ret < 0 && verbose >= 0) {
3303         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3304         av_close_input_file(ic);
3305         ffmpeg_exit(1);
3306     }
3307
3308     timestamp = start_time;
3309     /* add the stream start time */
3310     if (ic->start_time != AV_NOPTS_VALUE)
3311         timestamp += ic->start_time;
3312
3313     /* if seeking requested, we execute it */
3314     if (start_time != 0) {
3315         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3316         if (ret < 0) {
3317             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3318                     filename, (double)timestamp / AV_TIME_BASE);
3319         }
3320         /* reset seek info */
3321         start_time = 0;
3322     }
3323
3324     /* update the current parameters so that they match the one of the input stream */
3325     for(i=0;i<ic->nb_streams;i++) {
3326         AVStream *st = ic->streams[i];
3327         AVCodecContext *dec = st->codec;
3328         dec->thread_count = thread_count;
3329         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3330         switch (dec->codec_type) {
3331         case AVMEDIA_TYPE_AUDIO:
3332             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3333             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]);
3334             channel_layout    = dec->channel_layout;
3335             audio_channels    = dec->channels;
3336             audio_sample_rate = dec->sample_rate;
3337             audio_sample_fmt  = dec->sample_fmt;
3338             if(audio_disable)
3339                 st->discard= AVDISCARD_ALL;
3340             /* Note that av_find_stream_info can add more streams, and we
3341              * currently have no chance of setting up lowres decoding
3342              * early enough for them. */
3343             if (dec->lowres)
3344                 audio_sample_rate >>= dec->lowres;
3345             break;
3346         case AVMEDIA_TYPE_VIDEO:
3347             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3348             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]);
3349             frame_height = dec->height;
3350             frame_width  = dec->width;
3351             frame_pix_fmt = dec->pix_fmt;
3352             rfps      = ic->streams[i]->r_frame_rate.num;
3353             rfps_base = ic->streams[i]->r_frame_rate.den;
3354             if (dec->lowres) {
3355                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3356                 frame_height >>= dec->lowres;
3357                 frame_width  >>= dec->lowres;
3358                 dec->height = frame_height;
3359                 dec->width  = frame_width;
3360             }
3361             if(me_threshold)
3362                 dec->debug |= FF_DEBUG_MV;
3363
3364             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3365
3366                 if (verbose >= 0)
3367                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3368                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3369
3370                     (float)rfps / rfps_base, rfps, rfps_base);
3371             }
3372             /* update the current frame rate to match the stream frame rate */
3373             frame_rate.num = rfps;
3374             frame_rate.den = rfps_base;
3375
3376             if(video_disable)
3377                 st->discard= AVDISCARD_ALL;
3378             else if(video_discard)
3379                 st->discard= video_discard;
3380             break;
3381         case AVMEDIA_TYPE_DATA:
3382             break;
3383         case AVMEDIA_TYPE_SUBTITLE:
3384             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3385             if(subtitle_disable)
3386                 st->discard = AVDISCARD_ALL;
3387             break;
3388         case AVMEDIA_TYPE_ATTACHMENT:
3389         case AVMEDIA_TYPE_UNKNOWN:
3390             break;
3391         default:
3392             abort();
3393         }
3394     }
3395
3396     input_files[nb_input_files] = ic;
3397     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3398     /* dump the file content */
3399     if (verbose >= 0)
3400         av_dump_format(ic, nb_input_files, filename, 0);
3401
3402     nb_input_files++;
3403
3404     video_channel = 0;
3405
3406     av_freep(&video_codec_name);
3407     av_freep(&audio_codec_name);
3408     av_freep(&subtitle_codec_name);
3409 }
3410
3411 static void check_inputs(int *has_video_ptr,
3412                          int *has_audio_ptr,
3413                          int *has_subtitle_ptr,
3414                          int *has_data_ptr)
3415 {
3416     int has_video, has_audio, has_subtitle, has_data, i, j;
3417     AVFormatContext *ic;
3418
3419     has_video = 0;
3420     has_audio = 0;
3421     has_subtitle = 0;
3422     has_data = 0;
3423
3424     for(j=0;j<nb_input_files;j++) {
3425         ic = input_files[j];
3426         for(i=0;i<ic->nb_streams;i++) {
3427             AVCodecContext *enc = ic->streams[i]->codec;
3428             switch(enc->codec_type) {
3429             case AVMEDIA_TYPE_AUDIO:
3430                 has_audio = 1;
3431                 break;
3432             case AVMEDIA_TYPE_VIDEO:
3433                 has_video = 1;
3434                 break;
3435             case AVMEDIA_TYPE_SUBTITLE:
3436                 has_subtitle = 1;
3437                 break;
3438             case AVMEDIA_TYPE_DATA:
3439             case AVMEDIA_TYPE_ATTACHMENT:
3440             case AVMEDIA_TYPE_UNKNOWN:
3441                 has_data = 1;
3442                 break;
3443             default:
3444                 abort();
3445             }
3446         }
3447     }
3448     *has_video_ptr = has_video;
3449     *has_audio_ptr = has_audio;
3450     *has_subtitle_ptr = has_subtitle;
3451     *has_data_ptr = has_data;
3452 }
3453
3454 static void new_video_stream(AVFormatContext *oc, int file_idx)
3455 {
3456     AVStream *st;
3457     AVOutputStream *ost;
3458     AVCodecContext *video_enc;
3459     enum CodecID codec_id = CODEC_ID_NONE;
3460     AVCodec *codec= NULL;
3461
3462     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3463     if (!st) {
3464         fprintf(stderr, "Could not alloc stream\n");
3465         ffmpeg_exit(1);
3466     }
3467     ost = new_output_stream(oc, file_idx);
3468
3469     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3470     if(!video_stream_copy){
3471         if (video_codec_name) {
3472             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3473                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3474             codec = avcodec_find_encoder_by_name(video_codec_name);
3475             output_codecs[nb_output_codecs-1] = codec;
3476         } else {
3477             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3478             codec = avcodec_find_encoder(codec_id);
3479         }
3480         ost->frame_aspect_ratio = frame_aspect_ratio;
3481         frame_aspect_ratio = 0;
3482 #if CONFIG_AVFILTER
3483         ost->avfilter= vfilters;
3484         vfilters= NULL;
3485 #endif
3486     }
3487
3488     avcodec_get_context_defaults3(st->codec, codec);
3489     ost->bitstream_filters = video_bitstream_filters;
3490     video_bitstream_filters= NULL;
3491
3492     st->codec->thread_count= thread_count;
3493
3494     video_enc = st->codec;
3495
3496     if(video_codec_tag)
3497         video_enc->codec_tag= video_codec_tag;
3498
3499     if(   (video_global_header&1)
3500        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3501         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3502         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3503     }
3504     if(video_global_header&2){
3505         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3506         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3507     }
3508
3509     if (video_stream_copy) {
3510         st->stream_copy = 1;
3511         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3512         video_enc->sample_aspect_ratio =
3513         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3514     } else {
3515         const char *p;
3516         int i;
3517         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3518
3519         video_enc->codec_id = codec_id;
3520         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3521
3522         if (codec && codec->supported_framerates && !force_fps)
3523             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3524         video_enc->time_base.den = fps.num;
3525         video_enc->time_base.num = fps.den;
3526
3527         video_enc->width = frame_width;
3528         video_enc->height = frame_height;
3529         video_enc->pix_fmt = frame_pix_fmt;
3530         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3531         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3532
3533         choose_pixel_fmt(st, codec);
3534
3535         if (intra_only)
3536             video_enc->gop_size = 0;
3537         if (video_qscale || same_quality) {
3538             video_enc->flags |= CODEC_FLAG_QSCALE;
3539             video_enc->global_quality=
3540                 st->quality = FF_QP2LAMBDA * video_qscale;
3541         }
3542
3543         if(intra_matrix)
3544             video_enc->intra_matrix = intra_matrix;
3545         if(inter_matrix)
3546             video_enc->inter_matrix = inter_matrix;
3547
3548         p= video_rc_override_string;
3549         for(i=0; p; i++){
3550             int start, end, q;
3551             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3552             if(e!=3){
3553                 fprintf(stderr, "error parsing rc_override\n");
3554                 ffmpeg_exit(1);
3555             }
3556             video_enc->rc_override=
3557                 av_realloc(video_enc->rc_override,
3558                            sizeof(RcOverride)*(i+1));
3559             video_enc->rc_override[i].start_frame= start;
3560             video_enc->rc_override[i].end_frame  = end;
3561             if(q>0){
3562                 video_enc->rc_override[i].qscale= q;
3563                 video_enc->rc_override[i].quality_factor= 1.0;
3564             }
3565             else{
3566                 video_enc->rc_override[i].qscale= 0;
3567                 video_enc->rc_override[i].quality_factor= -q/100.0;
3568             }
3569             p= strchr(p, '/');
3570             if(p) p++;
3571         }
3572         video_enc->rc_override_count=i;
3573         if (!video_enc->rc_initial_buffer_occupancy)
3574             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3575         video_enc->me_threshold= me_threshold;
3576         video_enc->intra_dc_precision= intra_dc_precision - 8;
3577
3578         if (do_psnr)
3579             video_enc->flags|= CODEC_FLAG_PSNR;
3580
3581         /* two pass mode */
3582         if (do_pass) {
3583             if (do_pass == 1) {
3584                 video_enc->flags |= CODEC_FLAG_PASS1;
3585             } else {
3586                 video_enc->flags |= CODEC_FLAG_PASS2;
3587             }
3588         }
3589
3590         if (forced_key_frames)
3591             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3592     }
3593     if (video_language) {
3594         av_metadata_set2(&st->metadata, "language", video_language, 0);
3595         av_freep(&video_language);
3596     }
3597
3598     /* reset some key parameters */
3599     video_disable = 0;
3600     av_freep(&video_codec_name);
3601     av_freep(&forced_key_frames);
3602     video_stream_copy = 0;
3603     frame_pix_fmt = PIX_FMT_NONE;
3604 }
3605
3606 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3607 {
3608     AVStream *st;
3609     AVOutputStream *ost;
3610     AVCodec *codec= NULL;
3611     AVCodecContext *audio_enc;
3612     enum CodecID codec_id = CODEC_ID_NONE;
3613
3614     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3615     if (!st) {
3616         fprintf(stderr, "Could not alloc stream\n");
3617         ffmpeg_exit(1);
3618     }
3619     ost = new_output_stream(oc, file_idx);
3620
3621     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3622     if(!audio_stream_copy){
3623         if (audio_codec_name) {
3624             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3625                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3626             codec = avcodec_find_encoder_by_name(audio_codec_name);
3627             output_codecs[nb_output_codecs-1] = codec;
3628         } else {
3629             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3630             codec = avcodec_find_encoder(codec_id);
3631         }
3632     }
3633
3634     avcodec_get_context_defaults3(st->codec, codec);
3635
3636     ost->bitstream_filters = audio_bitstream_filters;
3637     audio_bitstream_filters= NULL;
3638
3639     st->codec->thread_count= thread_count;
3640
3641     audio_enc = st->codec;
3642     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3643
3644     if(audio_codec_tag)
3645         audio_enc->codec_tag= audio_codec_tag;
3646
3647     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3648         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3649         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3650     }
3651     if (audio_stream_copy) {
3652         st->stream_copy = 1;
3653         audio_enc->channels = audio_channels;
3654         audio_enc->sample_rate = audio_sample_rate;
3655     } else {
3656         audio_enc->codec_id = codec_id;
3657         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3658
3659         if (audio_qscale > QSCALE_NONE) {
3660             audio_enc->flags |= CODEC_FLAG_QSCALE;
3661             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3662         }