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