d42052d8df28c8a0e5532cdfc39f4eac68c82eae
[ffmpeg.git] / ffmpeg.c
1 /*
2  * FFmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcore/parseutils.h"
40 #include "libavutil/colorspace.h"
41 #include "libavutil/fifo.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/libm.h"
45 #include "libavformat/os_support.h"
46
47 #if CONFIG_AVFILTER
48 # include "libavfilter/avfilter.h"
49 # include "libavfilter/avfiltergraph.h"
50 # include "libavfilter/graphparser.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #if HAVE_TERMIOS_H
71 #include <fcntl.h>
72 #include <sys/ioctl.h>
73 #include <sys/time.h>
74 #include <termios.h>
75 #elif HAVE_CONIO_H
76 #include <conio.h>
77 #endif
78 #include <time.h>
79
80 #include "cmdutils.h"
81
82 #include "libavutil/avassert.h"
83
84 const char program_name[] = "FFmpeg";
85 const int program_birth_year = 2000;
86
87 /* select an input stream for an output stream */
88 typedef struct AVStreamMap {
89     int file_index;
90     int stream_index;
91     int sync_file_index;
92     int sync_stream_index;
93 } AVStreamMap;
94
95 /**
96  * select an input file for an output file
97  */
98 typedef struct AVMetaDataMap {
99     int out_file;
100     int in_file;
101 } AVMetaDataMap;
102
103 static const OptionDef options[];
104
105 #define MAX_FILES 100
106 #if !FF_API_MAX_STREAMS
107 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
108 #endif
109
110 static const char *last_asked_format = NULL;
111 static AVFormatContext *input_files[MAX_FILES];
112 static int64_t input_files_ts_offset[MAX_FILES];
113 static double *input_files_ts_scale[MAX_FILES] = {NULL};
114 static AVCodec **input_codecs = NULL;
115 static int nb_input_files = 0;
116 static int nb_input_codecs = 0;
117 static int nb_input_files_ts_scale[MAX_FILES] = {0};
118
119 static AVFormatContext *output_files[MAX_FILES];
120 static AVCodec **output_codecs = NULL;
121 static int nb_output_files = 0;
122 static int nb_output_codecs = 0;
123
124 static AVStreamMap *stream_maps = NULL;
125 static int nb_stream_maps;
126
127 static AVMetaDataMap meta_data_maps[MAX_FILES];
128 static int nb_meta_data_maps;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width  = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
139 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
140 static AVRational frame_rate;
141 static float video_qscale = 0;
142 static uint16_t *intra_matrix = NULL;
143 static uint16_t *inter_matrix = NULL;
144 static const char *video_rc_override_string=NULL;
145 static int video_disable = 0;
146 static int video_discard = 0;
147 static char *video_codec_name = NULL;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quality = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int loop_input = 0;
156 static int loop_output = AVFMT_NOOUTPUTLOOP;
157 static int qp_hist = 0;
158 #if CONFIG_AVFILTER
159 static char *vfilters = NULL;
160 AVFilterGraph *graph = NULL;
161 #endif
162
163 static int intra_only = 0;
164 static int audio_sample_rate = 44100;
165 static int64_t channel_layout = 0;
166 #define QSCALE_NONE -99999
167 static float audio_qscale = QSCALE_NONE;
168 static int audio_disable = 0;
169 static int audio_channels = 1;
170 static char  *audio_codec_name = NULL;
171 static unsigned int audio_codec_tag = 0;
172 static char *audio_language = NULL;
173
174 static int subtitle_disable = 0;
175 static char *subtitle_codec_name = NULL;
176 static char *subtitle_language = NULL;
177 static unsigned int subtitle_codec_tag = 0;
178
179 static float mux_preload= 0.5;
180 static float mux_max_delay= 0.7;
181
182 static int64_t recording_time = INT64_MAX;
183 static int64_t start_time = 0;
184 static int64_t recording_timestamp = 0;
185 static int64_t input_ts_offset = 0;
186 static int file_overwrite = 0;
187 static AVMetadata *metadata;
188 static int do_benchmark = 0;
189 static int do_hex_dump = 0;
190 static int do_pkt_dump = 0;
191 static int do_psnr = 0;
192 static int do_pass = 0;
193 static char *pass_logfilename_prefix = NULL;
194 static int audio_stream_copy = 0;
195 static int video_stream_copy = 0;
196 static int subtitle_stream_copy = 0;
197 static int video_sync_method= -1;
198 static int audio_sync_method= 0;
199 static float audio_drift_threshold= 0.1;
200 static int copy_ts= 0;
201 static int opt_shortest = 0;
202 static int video_global_header = 0;
203 static char *vstats_filename;
204 static FILE *vstats_file;
205 static int opt_programid = 0;
206 static int copy_initial_nonkeyframes = 0;
207
208 static int rate_emu = 0;
209
210 static int  video_channel = 0;
211 static char *video_standard;
212
213 static int audio_volume = 256;
214
215 static int exit_on_error = 0;
216 static int using_stdin = 0;
217 static int verbose = 1;
218 static int thread_count= 1;
219 static int q_pressed = 0;
220 static int64_t video_size = 0;
221 static int64_t audio_size = 0;
222 static int64_t extra_size = 0;
223 static int nb_frames_dup = 0;
224 static int nb_frames_drop = 0;
225 static int input_sync;
226 static uint64_t limit_filesize = 0;
227 static int force_fps = 0;
228 static char *forced_key_frames = NULL;
229
230 static int pgmyuv_compatibility_hack=0;
231 static float dts_delta_threshold = 10;
232
233 static unsigned int sws_flags = SWS_BICUBIC;
234
235 static int64_t timer_start;
236
237 static uint8_t *audio_buf;
238 static uint8_t *audio_out;
239 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
240
241 static short *samples;
242
243 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
245 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
246
247 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
248
249 struct AVInputStream;
250
251 typedef struct AVOutputStream {
252     int file_index;          /* file index */
253     int index;               /* stream index in the output file */
254     int source_index;        /* AVInputStream index */
255     AVStream *st;            /* stream in the output file */
256     int encoding_needed;     /* true if encoding needed for this stream */
257     int frame_number;
258     /* input pts and corresponding output pts
259        for A/V sync */
260     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
261     struct AVInputStream *sync_ist; /* input stream to sync against */
262     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
263     AVBitStreamFilterContext *bitstream_filters;
264     /* video only */
265     int video_resample;
266     AVFrame pict_tmp;      /* temporary image for resampling */
267     struct SwsContext *img_resample_ctx; /* for image resampling */
268     int resample_height;
269     int resample_width;
270     int resample_pix_fmt;
271
272     /* full frame size of first frame */
273     int original_height;
274     int original_width;
275
276     /* forced key frames */
277     int64_t *forced_kf_pts;
278     int forced_kf_count;
279     int forced_kf_index;
280
281     /* audio only */
282     int audio_resample;
283     ReSampleContext *resample; /* for audio resampling */
284     int reformat_pair;
285     AVAudioConvert *reformat_ctx;
286     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
287     FILE *logfile;
288 } AVOutputStream;
289
290 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
291 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
292
293 typedef struct AVInputStream {
294     int file_index;
295     int index;
296     AVStream *st;
297     int discard;             /* true if stream data should be discarded */
298     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
299     int64_t sample_index;      /* current sample */
300
301     int64_t       start;     /* time when read started */
302     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
303                                 is not defined */
304     int64_t       pts;       /* current pts */
305     PtsCorrectionContext pts_ctx;
306     int is_start;            /* is 1 at the start and after a discontinuity */
307     int showed_multi_packet_warning;
308     int is_past_recording_time;
309 #if CONFIG_AVFILTER
310     AVFilterContext *output_video_filter;
311     AVFilterContext *input_video_filter;
312     AVFrame *filter_frame;
313     int has_filter_frame;
314     AVFilterBufferRef *picref;
315 #endif
316 } AVInputStream;
317
318 typedef struct AVInputFile {
319     int eof_reached;      /* true if eof reached */
320     int ist_index;        /* index of first stream in ist_table */
321     int buffer_size;      /* current total buffer size */
322     int nb_streams;       /* nb streams we are aware of */
323 } AVInputFile;
324
325 #if HAVE_TERMIOS_H
326
327 /* init terminal so that we can grab keys */
328 static struct termios oldtty;
329 #endif
330
331 #if CONFIG_AVFILTER
332
333 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
334 {
335     AVFilterContext *last_filter, *filter;
336     /** filter graph containing all filters including input & output */
337     AVCodecContext *codec = ost->st->codec;
338     AVCodecContext *icodec = ist->st->codec;
339     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
340     char args[255];
341     int ret;
342
343     graph = av_mallocz(sizeof(AVFilterGraph));
344
345     if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
346         return ret;
347     if ((ret = avfilter_open(&ist->output_video_filter, &ffsink, "out")) < 0)
348         return ret;
349
350     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
351              ist->st->codec->height, ist->st->codec->pix_fmt,
352              ist->st->time_base.num, ist->st->time_base.den);
353     if ((ret = avfilter_init_filter(ist->input_video_filter, args, NULL)) < 0)
354         return ret;
355     if ((ret = avfilter_init_filter(ist->output_video_filter, NULL, &ffsink_ctx)) < 0)
356         return ret;
357
358     /* add input and output filters to the overall graph */
359     avfilter_graph_add_filter(graph, ist->input_video_filter);
360     avfilter_graph_add_filter(graph, ist->output_video_filter);
361
362     last_filter = ist->input_video_filter;
363
364     if (codec->width  != icodec->width || codec->height != icodec->height) {
365         snprintf(args, 255, "%d:%d:flags=0x%X",
366                  codec->width,
367                  codec->height,
368                  (int)av_get_int(sws_opts, "sws_flags", NULL));
369         if ((ret = avfilter_open(&filter, avfilter_get_by_name("scale"), NULL)) < 0)
370             return ret;
371         if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
372             return ret;
373         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
374             return ret;
375         last_filter = filter;
376         avfilter_graph_add_filter(graph, last_filter);
377     }
378
379     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
380     graph->scale_sws_opts = av_strdup(args);
381
382     if (vfilters) {
383         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
384         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
385
386         outputs->name    = av_strdup("in");
387         outputs->filter  = last_filter;
388         outputs->pad_idx = 0;
389         outputs->next    = NULL;
390
391         inputs->name    = av_strdup("out");
392         inputs->filter  = ist->output_video_filter;
393         inputs->pad_idx = 0;
394         inputs->next    = NULL;
395
396         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
397             return ret;
398         av_freep(&vfilters);
399     } else {
400         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
401             return ret;
402     }
403
404     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
405         return ret;
406
407     codec->width  = ist->output_video_filter->inputs[0]->w;
408     codec->height = ist->output_video_filter->inputs[0]->h;
409
410     return 0;
411 }
412 #endif /* CONFIG_AVFILTER */
413
414 static void term_exit(void)
415 {
416     av_log(NULL, AV_LOG_QUIET, "");
417 #if HAVE_TERMIOS_H
418     tcsetattr (0, TCSANOW, &oldtty);
419 #endif
420 }
421
422 static volatile int received_sigterm = 0;
423
424 static void
425 sigterm_handler(int sig)
426 {
427     received_sigterm = sig;
428     term_exit();
429 }
430
431 static void term_init(void)
432 {
433 #if HAVE_TERMIOS_H
434     struct termios tty;
435
436     tcgetattr (0, &tty);
437     oldtty = tty;
438     atexit(term_exit);
439
440     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
441                           |INLCR|IGNCR|ICRNL|IXON);
442     tty.c_oflag |= OPOST;
443     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
444     tty.c_cflag &= ~(CSIZE|PARENB);
445     tty.c_cflag |= CS8;
446     tty.c_cc[VMIN] = 1;
447     tty.c_cc[VTIME] = 0;
448
449     tcsetattr (0, TCSANOW, &tty);
450     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
451 #endif
452
453     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
454     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
455 #ifdef SIGXCPU
456     signal(SIGXCPU, sigterm_handler);
457 #endif
458 }
459
460 /* read a key without blocking */
461 static int read_key(void)
462 {
463 #if HAVE_TERMIOS_H
464     int n = 1;
465     unsigned char ch;
466     struct timeval tv;
467     fd_set rfds;
468
469     FD_ZERO(&rfds);
470     FD_SET(0, &rfds);
471     tv.tv_sec = 0;
472     tv.tv_usec = 0;
473     n = select(1, &rfds, NULL, NULL, &tv);
474     if (n > 0) {
475         n = read(0, &ch, 1);
476         if (n == 1)
477             return ch;
478
479         return n;
480     }
481 #elif HAVE_CONIO_H
482     if(kbhit())
483         return(getch());
484 #endif
485     return -1;
486 }
487
488 static int decode_interrupt_cb(void)
489 {
490     return q_pressed || (q_pressed = read_key() == 'q');
491 }
492
493 static int ffmpeg_exit(int ret)
494 {
495     int i;
496
497     /* close files */
498     for(i=0;i<nb_output_files;i++) {
499         /* maybe av_close_output_file ??? */
500         AVFormatContext *s = output_files[i];
501         int j;
502         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
503             url_fclose(s->pb);
504         for(j=0;j<s->nb_streams;j++) {
505             av_metadata_free(&s->streams[j]->metadata);
506             av_free(s->streams[j]->codec);
507             av_free(s->streams[j]->info);
508             av_free(s->streams[j]);
509         }
510         for(j=0;j<s->nb_programs;j++) {
511             av_metadata_free(&s->programs[j]->metadata);
512         }
513         for(j=0;j<s->nb_chapters;j++) {
514             av_metadata_free(&s->chapters[j]->metadata);
515         }
516         av_metadata_free(&s->metadata);
517         av_free(s);
518         av_free(output_streams_for_file[i]);
519     }
520     for(i=0;i<nb_input_files;i++) {
521         av_close_input_file(input_files[i]);
522         av_free(input_files_ts_scale[i]);
523     }
524
525     av_free(intra_matrix);
526     av_free(inter_matrix);
527
528     if (vstats_file)
529         fclose(vstats_file);
530     av_free(vstats_filename);
531
532     av_free(opt_names);
533     av_free(streamid_map);
534     av_free(input_codecs);
535     av_free(output_codecs);
536     av_free(stream_maps);
537
538     av_free(video_codec_name);
539     av_free(audio_codec_name);
540     av_free(subtitle_codec_name);
541
542     av_free(video_standard);
543
544     uninit_opts();
545     av_free(audio_buf);
546     av_free(audio_out);
547     allocated_audio_buf_size= allocated_audio_out_size= 0;
548     av_free(samples);
549
550 #if CONFIG_AVFILTER
551     avfilter_uninit();
552 #endif
553
554     if (received_sigterm) {
555         fprintf(stderr,
556             "Received signal %d: terminating.\n",
557             (int) received_sigterm);
558         exit (255);
559     }
560
561     exit(ret); /* not all OS-es handle main() return value */
562     return ret;
563 }
564
565 /* similar to ff_dynarray_add() and av_fast_realloc() */
566 static void *grow_array(void *array, int elem_size, int *size, int new_size)
567 {
568     if (new_size >= INT_MAX / elem_size) {
569         fprintf(stderr, "Array too big.\n");
570         ffmpeg_exit(1);
571     }
572     if (*size < new_size) {
573         uint8_t *tmp = av_realloc(array, new_size*elem_size);
574         if (!tmp) {
575             fprintf(stderr, "Could not alloc buffer.\n");
576             ffmpeg_exit(1);
577         }
578         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
579         *size = new_size;
580         return tmp;
581     }
582     return array;
583 }
584
585 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
586 {
587     if(codec && codec->sample_fmts){
588         const enum SampleFormat *p= codec->sample_fmts;
589         for(; *p!=-1; p++){
590             if(*p == st->codec->sample_fmt)
591                 break;
592         }
593         if(*p == -1)
594             st->codec->sample_fmt = codec->sample_fmts[0];
595     }
596 }
597
598 static void choose_sample_rate(AVStream *st, AVCodec *codec)
599 {
600     if(codec && codec->supported_samplerates){
601         const int *p= codec->supported_samplerates;
602         int best=0;
603         int best_dist=INT_MAX;
604         for(; *p; p++){
605             int dist= abs(st->codec->sample_rate - *p);
606             if(dist < best_dist){
607                 best_dist= dist;
608                 best= *p;
609             }
610         }
611         if(best_dist){
612             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
613         }
614         st->codec->sample_rate= best;
615     }
616 }
617
618 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
619 {
620     if(codec && codec->pix_fmts){
621         const enum PixelFormat *p= codec->pix_fmts;
622         for(; *p!=-1; p++){
623             if(*p == st->codec->pix_fmt)
624                 break;
625         }
626         if(*p == -1
627            && !(   st->codec->codec_id==CODEC_ID_MJPEG
628                 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
629                 && (   st->codec->pix_fmt == PIX_FMT_YUV420P
630                     || st->codec->pix_fmt == PIX_FMT_YUV422P)))
631             st->codec->pix_fmt = codec->pix_fmts[0];
632     }
633 }
634
635 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
636 {
637     int i, err;
638     AVFormatContext *ic;
639     int nopts = 0;
640
641     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
642     if (err < 0)
643         return err;
644     /* copy stream format */
645     s->nb_streams = ic->nb_streams;
646     for(i=0;i<ic->nb_streams;i++) {
647         AVStream *st;
648         AVCodec *codec;
649
650         // FIXME: a more elegant solution is needed
651         st = av_mallocz(sizeof(AVStream));
652         memcpy(st, ic->streams[i], sizeof(AVStream));
653         st->codec = avcodec_alloc_context();
654         if (!st->codec) {
655             print_error(filename, AVERROR(ENOMEM));
656             ffmpeg_exit(1);
657         }
658         avcodec_copy_context(st->codec, ic->streams[i]->codec);
659         s->streams[i] = st;
660
661         codec = avcodec_find_encoder(st->codec->codec_id);
662         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
663             if (audio_stream_copy) {
664                 st->stream_copy = 1;
665             } else
666                 choose_sample_fmt(st, codec);
667         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
668             if (video_stream_copy) {
669                 st->stream_copy = 1;
670             } else
671                 choose_pixel_fmt(st, codec);
672         }
673
674         if(!st->codec->thread_count)
675             st->codec->thread_count = 1;
676         if(st->codec->thread_count>1)
677             avcodec_thread_init(st->codec, st->codec->thread_count);
678
679         if(st->codec->flags & CODEC_FLAG_BITEXACT)
680             nopts = 1;
681     }
682
683     if (!nopts)
684         s->timestamp = av_gettime();
685
686     av_close_input_file(ic);
687     return 0;
688 }
689
690 static double
691 get_sync_ipts(const AVOutputStream *ost)
692 {
693     const AVInputStream *ist = ost->sync_ist;
694     return (double)(ist->pts - start_time)/AV_TIME_BASE;
695 }
696
697 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
698     int ret;
699
700     while(bsfc){
701         AVPacket new_pkt= *pkt;
702         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
703                                           &new_pkt.data, &new_pkt.size,
704                                           pkt->data, pkt->size,
705                                           pkt->flags & AV_PKT_FLAG_KEY);
706         if(a>0){
707             av_free_packet(pkt);
708             new_pkt.destruct= av_destruct_packet;
709         } else if(a<0){
710             fprintf(stderr, "%s failed for stream %d, codec %s",
711                     bsfc->filter->name, pkt->stream_index,
712                     avctx->codec ? avctx->codec->name : "copy");
713             print_error("", a);
714             if (exit_on_error)
715                 ffmpeg_exit(1);
716         }
717         *pkt= new_pkt;
718
719         bsfc= bsfc->next;
720     }
721
722     ret= av_interleaved_write_frame(s, pkt);
723     if(ret < 0){
724         print_error("av_interleaved_write_frame()", ret);
725         ffmpeg_exit(1);
726     }
727 }
728
729 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
730
731 static void do_audio_out(AVFormatContext *s,
732                          AVOutputStream *ost,
733                          AVInputStream *ist,
734                          unsigned char *buf, int size)
735 {
736     uint8_t *buftmp;
737     int64_t audio_out_size, audio_buf_size;
738     int64_t allocated_for_size= size;
739
740     int size_out, frame_bytes, ret;
741     AVCodecContext *enc= ost->st->codec;
742     AVCodecContext *dec= ist->st->codec;
743     int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
744     int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
745     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
746
747 need_realloc:
748     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
749     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
750     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
751     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
752     audio_buf_size*= osize*enc->channels;
753
754     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
755     if(coded_bps > 8*osize)
756         audio_out_size= audio_out_size * coded_bps / (8*osize);
757     audio_out_size += FF_MIN_BUFFER_SIZE;
758
759     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
760         fprintf(stderr, "Buffer sizes too large\n");
761         ffmpeg_exit(1);
762     }
763
764     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
765     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
766     if (!audio_buf || !audio_out){
767         fprintf(stderr, "Out of memory in do_audio_out\n");
768         ffmpeg_exit(1);
769     }
770
771     if (enc->channels != dec->channels)
772         ost->audio_resample = 1;
773
774     if (ost->audio_resample && !ost->resample) {
775         if (dec->sample_fmt != SAMPLE_FMT_S16)
776             fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
777         ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
778                                                enc->sample_rate, dec->sample_rate,
779                                                enc->sample_fmt,  dec->sample_fmt,
780                                                16, 10, 0, 0.8);
781         if (!ost->resample) {
782             fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
783                     dec->channels, dec->sample_rate,
784                     enc->channels, enc->sample_rate);
785             ffmpeg_exit(1);
786         }
787     }
788
789 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
790     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
791         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
792         if (ost->reformat_ctx)
793             av_audio_convert_free(ost->reformat_ctx);
794         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
795                                                    dec->sample_fmt, 1, NULL, 0);
796         if (!ost->reformat_ctx) {
797             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
798                 avcodec_get_sample_fmt_name(dec->sample_fmt),
799                 avcodec_get_sample_fmt_name(enc->sample_fmt));
800             ffmpeg_exit(1);
801         }
802         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
803     }
804
805     if(audio_sync_method){
806         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
807                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
808         double idelta= delta*dec->sample_rate / enc->sample_rate;
809         int byte_delta= ((int)idelta)*2*dec->channels;
810
811         //FIXME resample delay
812         if(fabs(delta) > 50){
813             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
814                 if(byte_delta < 0){
815                     byte_delta= FFMAX(byte_delta, -size);
816                     size += byte_delta;
817                     buf  -= byte_delta;
818                     if(verbose > 2)
819                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
820                     if(!size)
821                         return;
822                     ist->is_start=0;
823                 }else{
824                     static uint8_t *input_tmp= NULL;
825                     input_tmp= av_realloc(input_tmp, byte_delta + size);
826
827                     if(byte_delta > allocated_for_size - size){
828                         allocated_for_size= byte_delta + (int64_t)size;
829                         goto need_realloc;
830                     }
831                     ist->is_start=0;
832
833                     memset(input_tmp, 0, byte_delta);
834                     memcpy(input_tmp + byte_delta, buf, size);
835                     buf= input_tmp;
836                     size += byte_delta;
837                     if(verbose > 2)
838                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
839                 }
840             }else if(audio_sync_method>1){
841                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
842                 av_assert0(ost->audio_resample);
843                 if(verbose > 2)
844                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
845 //                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));
846                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
847             }
848         }
849     }else
850         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
851                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
852
853     if (ost->audio_resample) {
854         buftmp = audio_buf;
855         size_out = audio_resample(ost->resample,
856                                   (short *)buftmp, (short *)buf,
857                                   size / (dec->channels * isize));
858         size_out = size_out * enc->channels * osize;
859     } else {
860         buftmp = buf;
861         size_out = size;
862     }
863
864     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
865         const void *ibuf[6]= {buftmp};
866         void *obuf[6]= {audio_buf};
867         int istride[6]= {isize};
868         int ostride[6]= {osize};
869         int len= size_out/istride[0];
870         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
871             printf("av_audio_convert() failed\n");
872             if (exit_on_error)
873                 ffmpeg_exit(1);
874             return;
875         }
876         buftmp = audio_buf;
877         size_out = len*osize;
878     }
879
880     /* now encode as many frames as possible */
881     if (enc->frame_size > 1) {
882         /* output resampled raw samples */
883         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
884             fprintf(stderr, "av_fifo_realloc2() failed\n");
885             ffmpeg_exit(1);
886         }
887         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
888
889         frame_bytes = enc->frame_size * osize * enc->channels;
890
891         while (av_fifo_size(ost->fifo) >= frame_bytes) {
892             AVPacket pkt;
893             av_init_packet(&pkt);
894
895             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
896
897             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
898
899             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
900                                        (short *)audio_buf);
901             if (ret < 0) {
902                 fprintf(stderr, "Audio encoding failed\n");
903                 ffmpeg_exit(1);
904             }
905             audio_size += ret;
906             pkt.stream_index= ost->index;
907             pkt.data= audio_out;
908             pkt.size= ret;
909             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
910                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
911             pkt.flags |= AV_PKT_FLAG_KEY;
912             write_frame(s, &pkt, enc, ost->bitstream_filters);
913
914             ost->sync_opts += enc->frame_size;
915         }
916     } else {
917         AVPacket pkt;
918         av_init_packet(&pkt);
919
920         ost->sync_opts += size_out / (osize * enc->channels);
921
922         /* output a pcm frame */
923         /* determine the size of the coded buffer */
924         size_out /= osize;
925         if (coded_bps)
926             size_out = size_out*coded_bps/8;
927
928         if(size_out > audio_out_size){
929             fprintf(stderr, "Internal error, buffer size too small\n");
930             ffmpeg_exit(1);
931         }
932
933         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
934         ret = avcodec_encode_audio(enc, audio_out, size_out,
935                                    (short *)buftmp);
936         if (ret < 0) {
937             fprintf(stderr, "Audio encoding failed\n");
938             ffmpeg_exit(1);
939         }
940         audio_size += ret;
941         pkt.stream_index= ost->index;
942         pkt.data= audio_out;
943         pkt.size= ret;
944         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
945             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
946         pkt.flags |= AV_PKT_FLAG_KEY;
947         write_frame(s, &pkt, enc, ost->bitstream_filters);
948     }
949 }
950
951 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
952 {
953     AVCodecContext *dec;
954     AVPicture *picture2;
955     AVPicture picture_tmp;
956     uint8_t *buf = 0;
957
958     dec = ist->st->codec;
959
960     /* deinterlace : must be done before any resize */
961     if (do_deinterlace) {
962         int size;
963
964         /* create temporary picture */
965         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
966         buf = av_malloc(size);
967         if (!buf)
968             return;
969
970         picture2 = &picture_tmp;
971         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
972
973         if(avpicture_deinterlace(picture2, picture,
974                                  dec->pix_fmt, dec->width, dec->height) < 0) {
975             /* if error, do not deinterlace */
976             fprintf(stderr, "Deinterlacing failed\n");
977             av_free(buf);
978             buf = NULL;
979             picture2 = picture;
980         }
981     } else {
982         picture2 = picture;
983     }
984
985     if (picture != picture2)
986         *picture = *picture2;
987     *bufp = buf;
988 }
989
990 /* we begin to correct av delay at this threshold */
991 #define AV_DELAY_MAX 0.100
992
993 static void do_subtitle_out(AVFormatContext *s,
994                             AVOutputStream *ost,
995                             AVInputStream *ist,
996                             AVSubtitle *sub,
997                             int64_t pts)
998 {
999     static uint8_t *subtitle_out = NULL;
1000     int subtitle_out_max_size = 1024 * 1024;
1001     int subtitle_out_size, nb, i;
1002     AVCodecContext *enc;
1003     AVPacket pkt;
1004
1005     if (pts == AV_NOPTS_VALUE) {
1006         fprintf(stderr, "Subtitle packets must have a pts\n");
1007         if (exit_on_error)
1008             ffmpeg_exit(1);
1009         return;
1010     }
1011
1012     enc = ost->st->codec;
1013
1014     if (!subtitle_out) {
1015         subtitle_out = av_malloc(subtitle_out_max_size);
1016     }
1017
1018     /* Note: DVB subtitle need one packet to draw them and one other
1019        packet to clear them */
1020     /* XXX: signal it in the codec context ? */
1021     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1022         nb = 2;
1023     else
1024         nb = 1;
1025
1026     for(i = 0; i < nb; i++) {
1027         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1028         // start_display_time is required to be 0
1029         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1030         sub->end_display_time -= sub->start_display_time;
1031         sub->start_display_time = 0;
1032         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1033                                                     subtitle_out_max_size, sub);
1034         if (subtitle_out_size < 0) {
1035             fprintf(stderr, "Subtitle encoding failed\n");
1036             ffmpeg_exit(1);
1037         }
1038
1039         av_init_packet(&pkt);
1040         pkt.stream_index = ost->index;
1041         pkt.data = subtitle_out;
1042         pkt.size = subtitle_out_size;
1043         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1044         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1045             /* XXX: the pts correction is handled here. Maybe handling
1046                it in the codec would be better */
1047             if (i == 0)
1048                 pkt.pts += 90 * sub->start_display_time;
1049             else
1050                 pkt.pts += 90 * sub->end_display_time;
1051         }
1052         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1053     }
1054 }
1055
1056 static int bit_buffer_size= 1024*256;
1057 static uint8_t *bit_buffer= NULL;
1058
1059 static void do_video_out(AVFormatContext *s,
1060                          AVOutputStream *ost,
1061                          AVInputStream *ist,
1062                          AVFrame *in_picture,
1063                          int *frame_size)
1064 {
1065     int nb_frames, i, ret;
1066     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1067     AVCodecContext *enc, *dec;
1068     double sync_ipts;
1069
1070     enc = ost->st->codec;
1071     dec = ist->st->codec;
1072
1073     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1074
1075     /* by default, we output a single frame */
1076     nb_frames = 1;
1077
1078     *frame_size = 0;
1079
1080     if(video_sync_method){
1081         double vdelta = sync_ipts - ost->sync_opts;
1082         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1083         if (vdelta < -1.1)
1084             nb_frames = 0;
1085         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1086             if(vdelta<=-0.6){
1087                 nb_frames=0;
1088             }else if(vdelta>0.6)
1089             ost->sync_opts= lrintf(sync_ipts);
1090         }else if (vdelta > 1.1)
1091             nb_frames = lrintf(vdelta);
1092 //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);
1093         if (nb_frames == 0){
1094             ++nb_frames_drop;
1095             if (verbose>2)
1096                 fprintf(stderr, "*** drop!\n");
1097         }else if (nb_frames > 1) {
1098             nb_frames_dup += nb_frames - 1;
1099             if (verbose>2)
1100                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1101         }
1102     }else
1103         ost->sync_opts= lrintf(sync_ipts);
1104
1105     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1106     if (nb_frames <= 0)
1107         return;
1108
1109     formatted_picture = in_picture;
1110     final_picture = formatted_picture;
1111     padding_src = formatted_picture;
1112     resampling_dst = &ost->pict_tmp;
1113
1114     if (   ost->resample_height != ist->st->codec->height
1115         || ost->resample_width  != ist->st->codec->width
1116         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1117
1118         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1119         if(!ost->video_resample)
1120             ffmpeg_exit(1);
1121     }
1122
1123 #if !CONFIG_AVFILTER
1124     if (ost->video_resample) {
1125         padding_src = NULL;
1126         final_picture = &ost->pict_tmp;
1127         if(  ost->resample_height != ist->st->codec->height
1128           || ost->resample_width  != ist->st->codec->width
1129           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1130
1131             /* initialize a new scaler context */
1132             sws_freeContext(ost->img_resample_ctx);
1133             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1134             ost->img_resample_ctx = sws_getContext(
1135                 ist->st->codec->width,
1136                 ist->st->codec->height,
1137                 ist->st->codec->pix_fmt,
1138                 ost->st->codec->width,
1139                 ost->st->codec->height,
1140                 ost->st->codec->pix_fmt,
1141                 sws_flags, NULL, NULL, NULL);
1142             if (ost->img_resample_ctx == NULL) {
1143                 fprintf(stderr, "Cannot get resampling context\n");
1144                 ffmpeg_exit(1);
1145             }
1146         }
1147         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1148               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1149     }
1150 #endif
1151
1152     /* duplicates frame if needed */
1153     for(i=0;i<nb_frames;i++) {
1154         AVPacket pkt;
1155         av_init_packet(&pkt);
1156         pkt.stream_index= ost->index;
1157
1158         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1159             /* raw pictures are written as AVPicture structure to
1160                avoid any copies. We support temorarily the older
1161                method. */
1162             AVFrame* old_frame = enc->coded_frame;
1163             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1164             pkt.data= (uint8_t *)final_picture;
1165             pkt.size=  sizeof(AVPicture);
1166             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1167             pkt.flags |= AV_PKT_FLAG_KEY;
1168
1169             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1170             enc->coded_frame = old_frame;
1171         } else {
1172             AVFrame big_picture;
1173
1174             big_picture= *final_picture;
1175             /* better than nothing: use input picture interlaced
1176                settings */
1177             big_picture.interlaced_frame = in_picture->interlaced_frame;
1178             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1179                 if(top_field_first == -1)
1180                     big_picture.top_field_first = in_picture->top_field_first;
1181                 else
1182                     big_picture.top_field_first = top_field_first;
1183             }
1184
1185             /* handles sameq here. This is not correct because it may
1186                not be a global option */
1187             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1188             if(!me_threshold)
1189                 big_picture.pict_type = 0;
1190 //            big_picture.pts = AV_NOPTS_VALUE;
1191             big_picture.pts= ost->sync_opts;
1192 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1193 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1194             if (ost->forced_kf_index < ost->forced_kf_count &&
1195                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1196                 big_picture.pict_type = FF_I_TYPE;
1197                 ost->forced_kf_index++;
1198             }
1199             ret = avcodec_encode_video(enc,
1200                                        bit_buffer, bit_buffer_size,
1201                                        &big_picture);
1202             if (ret < 0) {
1203                 fprintf(stderr, "Video encoding failed\n");
1204                 ffmpeg_exit(1);
1205             }
1206
1207             if(ret>0){
1208                 pkt.data= bit_buffer;
1209                 pkt.size= ret;
1210                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1211                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1212 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1213    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1214    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1215
1216                 if(enc->coded_frame->key_frame)
1217                     pkt.flags |= AV_PKT_FLAG_KEY;
1218                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1219                 *frame_size = ret;
1220                 video_size += ret;
1221                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1222                 //        enc->frame_number-1, ret, enc->pict_type);
1223                 /* if two pass, output log */
1224                 if (ost->logfile && enc->stats_out) {
1225                     fprintf(ost->logfile, "%s", enc->stats_out);
1226                 }
1227             }
1228         }
1229         ost->sync_opts++;
1230         ost->frame_number++;
1231     }
1232 }
1233
1234 static double psnr(double d){
1235     return -10.0*log(d)/log(10.0);
1236 }
1237
1238 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1239                            int frame_size)
1240 {
1241     AVCodecContext *enc;
1242     int frame_number;
1243     double ti1, bitrate, avg_bitrate;
1244
1245     /* this is executed just the first time do_video_stats is called */
1246     if (!vstats_file) {
1247         vstats_file = fopen(vstats_filename, "w");
1248         if (!vstats_file) {
1249             perror("fopen");
1250             ffmpeg_exit(1);
1251         }
1252     }
1253
1254     enc = ost->st->codec;
1255     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1256         frame_number = ost->frame_number;
1257         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1258         if (enc->flags&CODEC_FLAG_PSNR)
1259             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1260
1261         fprintf(vstats_file,"f_size= %6d ", frame_size);
1262         /* compute pts value */
1263         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1264         if (ti1 < 0.01)
1265             ti1 = 0.01;
1266
1267         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1268         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1269         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1270             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1271         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1272     }
1273 }
1274
1275 static void print_report(AVFormatContext **output_files,
1276                          AVOutputStream **ost_table, int nb_ostreams,
1277                          int is_last_report)
1278 {
1279     char buf[1024];
1280     AVOutputStream *ost;
1281     AVFormatContext *oc;
1282     int64_t total_size;
1283     AVCodecContext *enc;
1284     int frame_number, vid, i;
1285     double bitrate, ti1, pts;
1286     static int64_t last_time = -1;
1287     static int qp_histogram[52];
1288
1289     if (!is_last_report) {
1290         int64_t cur_time;
1291         /* display the report every 0.5 seconds */
1292         cur_time = av_gettime();
1293         if (last_time == -1) {
1294             last_time = cur_time;
1295             return;
1296         }
1297         if ((cur_time - last_time) < 500000)
1298             return;
1299         last_time = cur_time;
1300     }
1301
1302
1303     oc = output_files[0];
1304
1305     total_size = url_fsize(oc->pb);
1306     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1307         total_size= url_ftell(oc->pb);
1308
1309     buf[0] = '\0';
1310     ti1 = 1e10;
1311     vid = 0;
1312     for(i=0;i<nb_ostreams;i++) {
1313         ost = ost_table[i];
1314         enc = ost->st->codec;
1315         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1317                      !ost->st->stream_copy ?
1318                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1319         }
1320         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1321             float t = (av_gettime()-timer_start) / 1000000.0;
1322
1323             frame_number = ost->frame_number;
1324             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1325                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1326                      !ost->st->stream_copy ?
1327                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1328             if(is_last_report)
1329                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1330             if(qp_hist){
1331                 int j;
1332                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1333                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1334                     qp_histogram[qp]++;
1335                 for(j=0; j<32; j++)
1336                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1337             }
1338             if (enc->flags&CODEC_FLAG_PSNR){
1339                 int j;
1340                 double error, error_sum=0;
1341                 double scale, scale_sum=0;
1342                 char type[3]= {'Y','U','V'};
1343                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1344                 for(j=0; j<3; j++){
1345                     if(is_last_report){
1346                         error= enc->error[j];
1347                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1348                     }else{
1349                         error= enc->coded_frame->error[j];
1350                         scale= enc->width*enc->height*255.0*255.0;
1351                     }
1352                     if(j) scale/=4;
1353                     error_sum += error;
1354                     scale_sum += scale;
1355                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1356                 }
1357                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1358             }
1359             vid = 1;
1360         }
1361         /* compute min output value */
1362         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1363         if ((pts < ti1) && (pts > 0))
1364             ti1 = pts;
1365     }
1366     if (ti1 < 0.01)
1367         ti1 = 0.01;
1368
1369     if (verbose || is_last_report) {
1370         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1371
1372         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1373             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1374             (double)total_size / 1024, ti1, bitrate);
1375
1376         if (nb_frames_dup || nb_frames_drop)
1377           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1378                   nb_frames_dup, nb_frames_drop);
1379
1380         if (verbose >= 0)
1381             fprintf(stderr, "%s    \r", buf);
1382
1383         fflush(stderr);
1384     }
1385
1386     if (is_last_report && verbose >= 0){
1387         int64_t raw= audio_size + video_size + extra_size;
1388         fprintf(stderr, "\n");
1389         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1390                 video_size/1024.0,
1391                 audio_size/1024.0,
1392                 extra_size/1024.0,
1393                 100.0*(total_size - raw)/raw
1394         );
1395     }
1396 }
1397
1398 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1399 static int output_packet(AVInputStream *ist, int ist_index,
1400                          AVOutputStream **ost_table, int nb_ostreams,
1401                          const AVPacket *pkt)
1402 {
1403     AVFormatContext *os;
1404     AVOutputStream *ost;
1405     int ret, i;
1406     int got_picture;
1407     AVFrame picture;
1408     void *buffer_to_free;
1409     static unsigned int samples_size= 0;
1410     AVSubtitle subtitle, *subtitle_to_free;
1411     int64_t pkt_pts = AV_NOPTS_VALUE;
1412 #if CONFIG_AVFILTER
1413     int frame_available;
1414 #endif
1415
1416     AVPacket avpkt;
1417     int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1418
1419     if(ist->next_pts == AV_NOPTS_VALUE)
1420         ist->next_pts= ist->pts;
1421
1422     if (pkt == NULL) {
1423         /* EOF handling */
1424         av_init_packet(&avpkt);
1425         avpkt.data = NULL;
1426         avpkt.size = 0;
1427         goto handle_eof;
1428     } else {
1429         avpkt = *pkt;
1430     }
1431
1432     if(pkt->dts != AV_NOPTS_VALUE)
1433         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1434     if(pkt->pts != AV_NOPTS_VALUE)
1435         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1436
1437     //while we have more to decode or while the decoder did output something on EOF
1438     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1439         uint8_t *data_buf, *decoded_data_buf;
1440         int data_size, decoded_data_size;
1441     handle_eof:
1442         ist->pts= ist->next_pts;
1443
1444         if(avpkt.size && avpkt.size != pkt->size &&
1445            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1446             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1447             ist->showed_multi_packet_warning=1;
1448         }
1449
1450         /* decode the packet if needed */
1451         decoded_data_buf = NULL; /* fail safe */
1452         decoded_data_size= 0;
1453         data_buf  = avpkt.data;
1454         data_size = avpkt.size;
1455         subtitle_to_free = NULL;
1456         if (ist->decoding_needed) {
1457             switch(ist->st->codec->codec_type) {
1458             case AVMEDIA_TYPE_AUDIO:{
1459                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1460                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1461                     av_free(samples);
1462                     samples= av_malloc(samples_size);
1463                 }
1464                 decoded_data_size= samples_size;
1465                     /* XXX: could avoid copy if PCM 16 bits with same
1466                        endianness as CPU */
1467                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1468                                             &avpkt);
1469                 if (ret < 0)
1470                     goto fail_decode;
1471                 avpkt.data += ret;
1472                 avpkt.size -= ret;
1473                 data_size   = ret;
1474                 /* Some bug in mpeg audio decoder gives */
1475                 /* decoded_data_size < 0, it seems they are overflows */
1476                 if (decoded_data_size <= 0) {
1477                     /* no audio frame */
1478                     continue;
1479                 }
1480                 decoded_data_buf = (uint8_t *)samples;
1481                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1482                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1483                 break;}
1484             case AVMEDIA_TYPE_VIDEO:
1485                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1486                     /* XXX: allocate picture correctly */
1487                     avcodec_get_frame_defaults(&picture);
1488                     ist->st->codec->reordered_opaque = pkt_pts;
1489                     pkt_pts = AV_NOPTS_VALUE;
1490
1491                     ret = avcodec_decode_video2(ist->st->codec,
1492                                                 &picture, &got_picture, &avpkt);
1493                     ist->st->quality= picture.quality;
1494                     if (ret < 0)
1495                         goto fail_decode;
1496                     if (!got_picture) {
1497                         /* no picture yet */
1498                         goto discard_packet;
1499                     }
1500                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1501                     if (ist->st->codec->time_base.num != 0) {
1502                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1503                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1504                                           ist->st->codec->time_base.num * ticks) /
1505                             ist->st->codec->time_base.den;
1506                     }
1507                     avpkt.size = 0;
1508                     break;
1509             case AVMEDIA_TYPE_SUBTITLE:
1510                 ret = avcodec_decode_subtitle2(ist->st->codec,
1511                                                &subtitle, &got_picture, &avpkt);
1512                 if (ret < 0)
1513                     goto fail_decode;
1514                 if (!got_picture) {
1515                     goto discard_packet;
1516                 }
1517                 subtitle_to_free = &subtitle;
1518                 avpkt.size = 0;
1519                 break;
1520             default:
1521                 goto fail_decode;
1522             }
1523         } else {
1524             switch(ist->st->codec->codec_type) {
1525             case AVMEDIA_TYPE_AUDIO:
1526                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1527                     ist->st->codec->sample_rate;
1528                 break;
1529             case AVMEDIA_TYPE_VIDEO:
1530                 if (ist->st->codec->time_base.num != 0) {
1531                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1532                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1533                                       ist->st->codec->time_base.num * ticks) /
1534                         ist->st->codec->time_base.den;
1535                 }
1536                 break;
1537             }
1538             ret = avpkt.size;
1539             avpkt.size = 0;
1540         }
1541
1542         buffer_to_free = NULL;
1543         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1544             pre_process_video_frame(ist, (AVPicture *)&picture,
1545                                     &buffer_to_free);
1546         }
1547
1548 #if CONFIG_AVFILTER
1549         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1550             // add it to be filtered
1551             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1552                                      ist->pts,
1553                                      ist->st->codec->sample_aspect_ratio);
1554         }
1555 #endif
1556
1557         // preprocess audio (volume)
1558         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1559             if (audio_volume != 256) {
1560                 short *volp;
1561                 volp = samples;
1562                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1563                     int v = ((*volp) * audio_volume + 128) >> 8;
1564                     if (v < -32768) v = -32768;
1565                     if (v >  32767) v = 32767;
1566                     *volp++ = v;
1567                 }
1568             }
1569         }
1570
1571         /* frame rate emulation */
1572         if (rate_emu) {
1573             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1574             int64_t now = av_gettime() - ist->start;
1575             if (pts > now)
1576                 usleep(pts - now);
1577         }
1578 #if CONFIG_AVFILTER
1579         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1580             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1581 #endif
1582         /* if output time reached then transcode raw format,
1583            encode packets and output them */
1584         if (start_time == 0 || ist->pts >= start_time)
1585 #if CONFIG_AVFILTER
1586         while (frame_available) {
1587             AVRational ist_pts_tb;
1588             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1589                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1590             if (ist->picref)
1591                 ist->pts = ist->picref->pts;
1592 #endif
1593             for(i=0;i<nb_ostreams;i++) {
1594                 int frame_size;
1595
1596                 ost = ost_table[i];
1597                 if (ost->source_index == ist_index) {
1598                     os = output_files[ost->file_index];
1599
1600                     /* set the input output pts pairs */
1601                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1602
1603                     if (ost->encoding_needed) {
1604                         av_assert0(ist->decoding_needed);
1605                         switch(ost->st->codec->codec_type) {
1606                         case AVMEDIA_TYPE_AUDIO:
1607                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1608                             break;
1609                         case AVMEDIA_TYPE_VIDEO:
1610 #if CONFIG_AVFILTER
1611                             if (ist->picref->video)
1612                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1613 #endif
1614                             do_video_out(os, ost, ist, &picture, &frame_size);
1615                             if (vstats_filename && frame_size)
1616                                 do_video_stats(os, ost, frame_size);
1617                             break;
1618                         case AVMEDIA_TYPE_SUBTITLE:
1619                             do_subtitle_out(os, ost, ist, &subtitle,
1620                                             pkt->pts);
1621                             break;
1622                         default:
1623                             abort();
1624                         }
1625                     } else {
1626                         AVFrame avframe; //FIXME/XXX remove this
1627                         AVPacket opkt;
1628                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1629
1630                         av_init_packet(&opkt);
1631
1632                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1633                             continue;
1634
1635                         /* no reencoding needed : output the packet directly */
1636                         /* force the input stream PTS */
1637
1638                         avcodec_get_frame_defaults(&avframe);
1639                         ost->st->codec->coded_frame= &avframe;
1640                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1641
1642                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1643                             audio_size += data_size;
1644                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1645                             video_size += data_size;
1646                             ost->sync_opts++;
1647                         }
1648
1649                         opkt.stream_index= ost->index;
1650                         if(pkt->pts != AV_NOPTS_VALUE)
1651                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1652                         else
1653                             opkt.pts= AV_NOPTS_VALUE;
1654
1655                         if (pkt->dts == AV_NOPTS_VALUE)
1656                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1657                         else
1658                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1659                         opkt.dts -= ost_tb_start_time;
1660
1661                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1662                         opkt.flags= pkt->flags;
1663
1664                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1665                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1666                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1667                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1668                            ) {
1669                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1670                                 opkt.destruct= av_destruct_packet;
1671                         } else {
1672                             opkt.data = data_buf;
1673                             opkt.size = data_size;
1674                         }
1675
1676                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1677                         ost->st->codec->frame_number++;
1678                         ost->frame_number++;
1679                         av_free_packet(&opkt);
1680                     }
1681                 }
1682             }
1683
1684 #if CONFIG_AVFILTER
1685             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1686                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1687             if(ist->picref)
1688                 avfilter_unref_buffer(ist->picref);
1689         }
1690 #endif
1691         av_free(buffer_to_free);
1692         /* XXX: allocate the subtitles in the codec ? */
1693         if (subtitle_to_free) {
1694             if (subtitle_to_free->rects != NULL) {
1695                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1696                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1697                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1698                     av_freep(&subtitle_to_free->rects[i]);
1699                 }
1700                 av_freep(&subtitle_to_free->rects);
1701             }
1702             subtitle_to_free->num_rects = 0;
1703             subtitle_to_free = NULL;
1704         }
1705     }
1706  discard_packet:
1707     if (pkt == NULL) {
1708         /* EOF handling */
1709
1710         for(i=0;i<nb_ostreams;i++) {
1711             ost = ost_table[i];
1712             if (ost->source_index == ist_index) {
1713                 AVCodecContext *enc= ost->st->codec;
1714                 os = output_files[ost->file_index];
1715
1716                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1717                     continue;
1718                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1719                     continue;
1720
1721                 if (ost->encoding_needed) {
1722                     for(;;) {
1723                         AVPacket pkt;
1724                         int fifo_bytes;
1725                         av_init_packet(&pkt);
1726                         pkt.stream_index= ost->index;
1727
1728                         switch(ost->st->codec->codec_type) {
1729                         case AVMEDIA_TYPE_AUDIO:
1730                             fifo_bytes = av_fifo_size(ost->fifo);
1731                             ret = 0;
1732                             /* encode any samples remaining in fifo */
1733                             if (fifo_bytes > 0) {
1734                                 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1735                                 int fs_tmp = enc->frame_size;
1736
1737                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1738                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1739                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1740                                 } else { /* pad */
1741                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1742                                     if (allocated_audio_buf_size < frame_bytes)
1743                                         ffmpeg_exit(1);
1744                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1745                                 }
1746
1747                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1748                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1749                                                           ost->st->time_base.num, enc->sample_rate);
1750                                 enc->frame_size = fs_tmp;
1751                             }
1752                             if(ret <= 0) {
1753                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1754                             }
1755                             if (ret < 0) {
1756                                 fprintf(stderr, "Audio encoding failed\n");
1757                                 ffmpeg_exit(1);
1758                             }
1759                             audio_size += ret;
1760                             pkt.flags |= AV_PKT_FLAG_KEY;
1761                             break;
1762                         case AVMEDIA_TYPE_VIDEO:
1763                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1764                             if (ret < 0) {
1765                                 fprintf(stderr, "Video encoding failed\n");
1766                                 ffmpeg_exit(1);
1767                             }
1768                             video_size += ret;
1769                             if(enc->coded_frame && enc->coded_frame->key_frame)
1770                                 pkt.flags |= AV_PKT_FLAG_KEY;
1771                             if (ost->logfile && enc->stats_out) {
1772                                 fprintf(ost->logfile, "%s", enc->stats_out);
1773                             }
1774                             break;
1775                         default:
1776                             ret=-1;
1777                         }
1778
1779                         if(ret<=0)
1780                             break;
1781                         pkt.data= bit_buffer;
1782                         pkt.size= ret;
1783                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1784                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1785                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1786                     }
1787                 }
1788             }
1789         }
1790     }
1791
1792     return 0;
1793  fail_decode:
1794     return -1;
1795 }
1796
1797 static void print_sdp(AVFormatContext **avc, int n)
1798 {
1799     char sdp[2048];
1800
1801     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1802     printf("SDP:\n%s\n", sdp);
1803     fflush(stdout);
1804 }
1805
1806 static int copy_chapters(int infile, int outfile)
1807 {
1808     AVFormatContext *is = input_files[infile];
1809     AVFormatContext *os = output_files[outfile];
1810     int i;
1811
1812     for (i = 0; i < is->nb_chapters; i++) {
1813         AVChapter *in_ch = is->chapters[i], *out_ch;
1814         AVMetadataTag *t = NULL;
1815         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1816                                       AV_TIME_BASE_Q, in_ch->time_base);
1817         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1818                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1819
1820
1821         if (in_ch->end < ts_off)
1822             continue;
1823         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1824             break;
1825
1826         out_ch = av_mallocz(sizeof(AVChapter));
1827         if (!out_ch)
1828             return AVERROR(ENOMEM);
1829
1830         out_ch->id        = in_ch->id;
1831         out_ch->time_base = in_ch->time_base;
1832         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1833         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1834
1835         while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1836             av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1837
1838         os->nb_chapters++;
1839         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1840         if (!os->chapters)
1841             return AVERROR(ENOMEM);
1842         os->chapters[os->nb_chapters - 1] = out_ch;
1843     }
1844     return 0;
1845 }
1846
1847 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1848                                     AVCodecContext *avctx)
1849 {
1850     char *p;
1851     int n = 1, i;
1852     int64_t t;
1853
1854     for (p = kf; *p; p++)
1855         if (*p == ',')
1856             n++;
1857     ost->forced_kf_count = n;
1858     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1859     if (!ost->forced_kf_pts) {
1860         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1861         ffmpeg_exit(1);
1862     }
1863     for (i = 0; i < n; i++) {
1864         p = i ? strchr(p, ',') + 1 : kf;
1865         t = parse_time_or_die("force_key_frames", p, 1);
1866         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1867     }
1868 }
1869
1870 /*
1871  * The following code is the main loop of the file converter
1872  */
1873 static int transcode(AVFormatContext **output_files,
1874                      int nb_output_files,
1875                      AVFormatContext **input_files,
1876                      int nb_input_files,
1877                      AVStreamMap *stream_maps, int nb_stream_maps)
1878 {
1879     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1880     AVFormatContext *is, *os;
1881     AVCodecContext *codec, *icodec;
1882     AVOutputStream *ost, **ost_table = NULL;
1883     AVInputStream *ist, **ist_table = NULL;
1884     AVInputFile *file_table;
1885     char error[1024];
1886     int key;
1887     int want_sdp = 1;
1888     uint8_t no_packet[MAX_FILES]={0};
1889     int no_packet_count=0;
1890
1891     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1892     if (!file_table)
1893         goto fail;
1894
1895     /* input stream init */
1896     j = 0;
1897     for(i=0;i<nb_input_files;i++) {
1898         is = input_files[i];
1899         file_table[i].ist_index = j;
1900         file_table[i].nb_streams = is->nb_streams;
1901         j += is->nb_streams;
1902     }
1903     nb_istreams = j;
1904
1905     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1906     if (!ist_table)
1907         goto fail;
1908
1909     for(i=0;i<nb_istreams;i++) {
1910         ist = av_mallocz(sizeof(AVInputStream));
1911         if (!ist)
1912             goto fail;
1913         ist_table[i] = ist;
1914     }
1915     j = 0;
1916     for(i=0;i<nb_input_files;i++) {
1917         is = input_files[i];
1918         for(k=0;k<is->nb_streams;k++) {
1919             ist = ist_table[j++];
1920             ist->st = is->streams[k];
1921             ist->file_index = i;
1922             ist->index = k;
1923             ist->discard = 1; /* the stream is discarded by default
1924                                  (changed later) */
1925
1926             if (rate_emu) {
1927                 ist->start = av_gettime();
1928             }
1929         }
1930     }
1931
1932     /* output stream init */
1933     nb_ostreams = 0;
1934     for(i=0;i<nb_output_files;i++) {
1935         os = output_files[i];
1936         if (!os->nb_streams) {
1937             dump_format(output_files[i], i, output_files[i]->filename, 1);
1938             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1939             ret = AVERROR(EINVAL);
1940             goto fail;
1941         }
1942         nb_ostreams += os->nb_streams;
1943     }
1944     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1945         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1946         ret = AVERROR(EINVAL);
1947         goto fail;
1948     }
1949
1950     /* Sanity check the mapping args -- do the input files & streams exist? */
1951     for(i=0;i<nb_stream_maps;i++) {
1952         int fi = stream_maps[i].file_index;
1953         int si = stream_maps[i].stream_index;
1954
1955         if (fi < 0 || fi > nb_input_files - 1 ||
1956             si < 0 || si > file_table[fi].nb_streams - 1) {
1957             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1958             ret = AVERROR(EINVAL);
1959             goto fail;
1960         }
1961         fi = stream_maps[i].sync_file_index;
1962         si = stream_maps[i].sync_stream_index;
1963         if (fi < 0 || fi > nb_input_files - 1 ||
1964             si < 0 || si > file_table[fi].nb_streams - 1) {
1965             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1966             ret = AVERROR(EINVAL);
1967             goto fail;
1968         }
1969     }
1970
1971     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1972     if (!ost_table)
1973         goto fail;
1974     n = 0;
1975     for(k=0;k<nb_output_files;k++) {
1976         os = output_files[k];
1977         for(i=0;i<os->nb_streams;i++,n++) {
1978             int found;
1979             ost = ost_table[n] = output_streams_for_file[k][i];
1980             ost->st = os->streams[i];
1981             if (nb_stream_maps > 0) {
1982                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1983                     stream_maps[n].stream_index;
1984
1985                 /* Sanity check that the stream types match */
1986                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1987                     int i= ost->file_index;
1988                     dump_format(output_files[i], i, output_files[i]->filename, 1);
1989                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1990                         stream_maps[n].file_index, stream_maps[n].stream_index,
1991                         ost->file_index, ost->index);
1992                     ffmpeg_exit(1);
1993                 }
1994
1995             } else {
1996                 int best_nb_frames=-1;
1997                 /* get corresponding input stream index : we select the first one with the right type */
1998                 found = 0;
1999                 for(j=0;j<nb_istreams;j++) {
2000                     int skip=0;
2001                     ist = ist_table[j];
2002                     if(opt_programid){
2003                         int pi,si;
2004                         AVFormatContext *f= input_files[ ist->file_index ];
2005                         skip=1;
2006                         for(pi=0; pi<f->nb_programs; pi++){
2007                             AVProgram *p= f->programs[pi];
2008                             if(p->id == opt_programid)
2009                                 for(si=0; si<p->nb_stream_indexes; si++){
2010                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2011                                         skip=0;
2012                                 }
2013                         }
2014                     }
2015                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2016                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2017                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2018                             best_nb_frames= ist->st->codec_info_nb_frames;
2019                             ost->source_index = j;
2020                             found = 1;
2021                         }
2022                     }
2023                 }
2024
2025                 if (!found) {
2026                     if(! opt_programid) {
2027                         /* try again and reuse existing stream */
2028                         for(j=0;j<nb_istreams;j++) {
2029                             ist = ist_table[j];
2030                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2031                                 && ist->st->discard != AVDISCARD_ALL) {
2032                                 ost->source_index = j;
2033                                 found = 1;
2034                             }
2035                         }
2036                     }
2037                     if (!found) {
2038                         int i= ost->file_index;
2039                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2040                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2041                                 ost->file_index, ost->index);
2042                         ffmpeg_exit(1);
2043                     }
2044                 }
2045             }
2046             ist = ist_table[ost->source_index];
2047             ist->discard = 0;
2048             ost->sync_ist = (nb_stream_maps > 0) ?
2049                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2050                          stream_maps[n].sync_stream_index] : ist;
2051         }
2052     }
2053
2054     /* for each output stream, we compute the right encoding parameters */
2055     for(i=0;i<nb_ostreams;i++) {
2056         AVMetadataTag *t = NULL;
2057         ost = ost_table[i];
2058         os = output_files[ost->file_index];
2059         ist = ist_table[ost->source_index];
2060
2061         codec = ost->st->codec;
2062         icodec = ist->st->codec;
2063
2064         while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2065             av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2066         }
2067
2068         ost->st->disposition = ist->st->disposition;
2069         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2070         codec->chroma_sample_location = icodec->chroma_sample_location;
2071
2072         if (ost->st->stream_copy) {
2073             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2074
2075             if (extra_size > INT_MAX)
2076                 goto fail;
2077
2078             /* if stream_copy is selected, no need to decode or encode */
2079             codec->codec_id = icodec->codec_id;
2080             codec->codec_type = icodec->codec_type;
2081
2082             if(!codec->codec_tag){
2083                 if(   !os->oformat->codec_tag
2084                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2085                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2086                     codec->codec_tag = icodec->codec_tag;
2087             }
2088
2089             codec->bit_rate = icodec->bit_rate;
2090             codec->rc_max_rate    = icodec->rc_max_rate;
2091             codec->rc_buffer_size = icodec->rc_buffer_size;
2092             codec->extradata= av_mallocz(extra_size);
2093             if (!codec->extradata)
2094                 goto fail;
2095             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2096             codec->extradata_size= icodec->extradata_size;
2097             if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2098                 codec->time_base = icodec->time_base;
2099                 codec->time_base.num *= icodec->ticks_per_frame;
2100                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2101                           codec->time_base.num, codec->time_base.den, INT_MAX);
2102             }else
2103                 codec->time_base = ist->st->time_base;
2104             switch(codec->codec_type) {
2105             case AVMEDIA_TYPE_AUDIO:
2106                 if(audio_volume != 256) {
2107                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2108                     ffmpeg_exit(1);
2109                 }
2110                 codec->channel_layout = icodec->channel_layout;
2111                 codec->sample_rate = icodec->sample_rate;
2112                 codec->channels = icodec->channels;
2113                 codec->frame_size = icodec->frame_size;
2114                 codec->block_align= icodec->block_align;
2115                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2116                     codec->block_align= 0;
2117                 if(codec->codec_id == CODEC_ID_AC3)
2118                     codec->block_align= 0;
2119                 break;
2120             case AVMEDIA_TYPE_VIDEO:
2121                 codec->pix_fmt = icodec->pix_fmt;
2122                 codec->width = icodec->width;
2123                 codec->height = icodec->height;
2124                 codec->has_b_frames = icodec->has_b_frames;
2125                 break;
2126             case AVMEDIA_TYPE_SUBTITLE:
2127                 codec->width = icodec->width;
2128                 codec->height = icodec->height;
2129                 break;
2130             default:
2131                 abort();
2132             }
2133         } else {
2134             switch(codec->codec_type) {
2135             case AVMEDIA_TYPE_AUDIO:
2136                 ost->fifo= av_fifo_alloc(1024);
2137                 if(!ost->fifo)
2138                     goto fail;
2139                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2140                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2141                 icodec->request_channels = codec->channels;
2142                 ist->decoding_needed = 1;
2143                 ost->encoding_needed = 1;
2144                 break;
2145             case AVMEDIA_TYPE_VIDEO:
2146                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2147                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2148                     ffmpeg_exit(1);
2149                 }
2150                 ost->video_resample = (codec->width != icodec->width   ||
2151                                        codec->height != icodec->height ||
2152                         (codec->pix_fmt != icodec->pix_fmt));
2153                 if (ost->video_resample) {
2154                     avcodec_get_frame_defaults(&ost->pict_tmp);
2155                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2156                                          codec->width, codec->height)) {
2157                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2158                         ffmpeg_exit(1);
2159                     }
2160                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2161                     ost->img_resample_ctx = sws_getContext(
2162                         icodec->width,
2163                         icodec->height,
2164                             icodec->pix_fmt,
2165                             codec->width,
2166                             codec->height,
2167                             codec->pix_fmt,
2168                             sws_flags, NULL, NULL, NULL);
2169                     if (ost->img_resample_ctx == NULL) {
2170                         fprintf(stderr, "Cannot get resampling context\n");
2171                         ffmpeg_exit(1);
2172                     }
2173
2174 #if !CONFIG_AVFILTER
2175                     ost->original_height = icodec->height;
2176                     ost->original_width  = icodec->width;
2177 #endif
2178                     codec->bits_per_raw_sample= 0;
2179                 }
2180                 ost->resample_height = icodec->height;
2181                 ost->resample_width  = icodec->width;
2182                 ost->resample_pix_fmt= icodec->pix_fmt;
2183                 ost->encoding_needed = 1;
2184                 ist->decoding_needed = 1;
2185
2186 #if CONFIG_AVFILTER
2187                 if (configure_filters(ist, ost)) {
2188                     fprintf(stderr, "Error opening filters!\n");
2189                     exit(1);
2190                 }
2191 #endif
2192                 break;
2193             case AVMEDIA_TYPE_SUBTITLE:
2194                 ost->encoding_needed = 1;
2195                 ist->decoding_needed = 1;
2196                 break;
2197             default:
2198                 abort();
2199                 break;
2200             }
2201             /* two pass mode */
2202             if (ost->encoding_needed &&
2203                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2204                 char logfilename[1024];
2205                 FILE *f;
2206
2207                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2208                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2209                          i);
2210                 if (codec->flags & CODEC_FLAG_PASS1) {
2211                     f = fopen(logfilename, "wb");
2212                     if (!f) {
2213                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2214                         ffmpeg_exit(1);
2215                     }
2216                     ost->logfile = f;
2217                 } else {
2218                     char  *logbuffer;
2219                     size_t logbuffer_size;
2220                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2221                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2222                         ffmpeg_exit(1);
2223                     }
2224                     codec->stats_in = logbuffer;
2225                 }
2226             }
2227         }
2228         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2229             int size= codec->width * codec->height;
2230             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2231         }
2232     }
2233
2234     if (!bit_buffer)
2235         bit_buffer = av_malloc(bit_buffer_size);
2236     if (!bit_buffer) {
2237         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2238                 bit_buffer_size);
2239         ret = AVERROR(ENOMEM);
2240         goto fail;
2241     }
2242
2243     /* open each encoder */
2244     for(i=0;i<nb_ostreams;i++) {
2245         ost = ost_table[i];
2246         if (ost->encoding_needed) {
2247             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2248             if (!codec)
2249                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2250             if (!codec) {
2251                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2252                          ost->st->codec->codec_id, ost->file_index, ost->index);
2253                 ret = AVERROR(EINVAL);
2254                 goto dump_format;
2255             }
2256             if (avcodec_open(ost->st->codec, codec) < 0) {
2257                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2258                         ost->file_index, ost->index);
2259                 ret = AVERROR(EINVAL);
2260                 goto dump_format;
2261             }
2262             extra_size += ost->st->codec->extradata_size;
2263         }
2264     }
2265
2266     /* open each decoder */
2267     for(i=0;i<nb_istreams;i++) {
2268         ist = ist_table[i];
2269         if (ist->decoding_needed) {
2270             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2271             if (!codec)
2272                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2273             if (!codec) {
2274                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2275                         ist->st->codec->codec_id, ist->file_index, ist->index);
2276                 ret = AVERROR(EINVAL);
2277                 goto dump_format;
2278             }
2279             if (avcodec_open(ist->st->codec, codec) < 0) {
2280                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2281                         ist->file_index, ist->index);
2282                 ret = AVERROR(EINVAL);
2283                 goto dump_format;
2284             }
2285             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2286             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2287         }
2288     }
2289
2290     /* init pts */
2291     for(i=0;i<nb_istreams;i++) {
2292         AVStream *st;
2293         ist = ist_table[i];
2294         st= ist->st;
2295         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2296         ist->next_pts = AV_NOPTS_VALUE;
2297         init_pts_correction(&ist->pts_ctx);
2298         ist->is_start = 1;
2299     }
2300
2301     /* set meta data information from input file if required */
2302     for (i=0;i<nb_meta_data_maps;i++) {
2303         AVFormatContext *out_file;
2304         AVFormatContext *in_file;
2305         AVMetadataTag *mtag;
2306
2307         int out_file_index = meta_data_maps[i].out_file;
2308         int in_file_index = meta_data_maps[i].in_file;
2309         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2310             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2311                      out_file_index, out_file_index, in_file_index);
2312             ret = AVERROR(EINVAL);
2313             goto dump_format;
2314         }
2315         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2316             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2317                      in_file_index, out_file_index, in_file_index);
2318             ret = AVERROR(EINVAL);
2319             goto dump_format;
2320         }
2321
2322         out_file = output_files[out_file_index];
2323         in_file = input_files[in_file_index];
2324
2325
2326         mtag=NULL;
2327         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2328             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2329     }
2330
2331     /* copy chapters from the first input file that has them*/
2332     for (i = 0; i < nb_input_files; i++) {
2333         if (!input_files[i]->nb_chapters)
2334             continue;
2335
2336         for (j = 0; j < nb_output_files; j++)
2337             if ((ret = copy_chapters(i, j)) < 0)
2338                 goto dump_format;
2339     }
2340
2341     /* open files and write file headers */
2342     for(i=0;i<nb_output_files;i++) {
2343         os = output_files[i];
2344         if (av_write_header(os) < 0) {
2345             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2346             ret = AVERROR(EINVAL);
2347             goto dump_format;
2348         }
2349         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2350             want_sdp = 0;
2351         }
2352     }
2353
2354  dump_format:
2355     /* dump the file output parameters - cannot be done before in case
2356        of stream copy */
2357     for(i=0;i<nb_output_files;i++) {
2358         dump_format(output_files[i], i, output_files[i]->filename, 1);
2359     }
2360
2361     /* dump the stream mapping */
2362     if (verbose >= 0) {
2363         fprintf(stderr, "Stream mapping:\n");
2364         for(i=0;i<nb_ostreams;i++) {
2365             ost = ost_table[i];
2366             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2367                     ist_table[ost->source_index]->file_index,
2368                     ist_table[ost->source_index]->index,
2369                     ost->file_index,
2370                     ost->index);
2371             if (ost->sync_ist != ist_table[ost->source_index])
2372                 fprintf(stderr, " [sync #%d.%d]",
2373                         ost->sync_ist->file_index,
2374                         ost->sync_ist->index);
2375             fprintf(stderr, "\n");
2376         }
2377     }
2378
2379     if (ret) {
2380         fprintf(stderr, "%s\n", error);
2381         goto fail;
2382     }
2383
2384     if (want_sdp) {
2385         print_sdp(output_files, nb_output_files);
2386     }
2387
2388     if (!using_stdin && verbose >= 0) {
2389         fprintf(stderr, "Press [q] to stop encoding\n");
2390         url_set_interrupt_cb(decode_interrupt_cb);
2391     }
2392     term_init();
2393
2394     timer_start = av_gettime();
2395
2396     for(; received_sigterm == 0;) {
2397         int file_index, ist_index;
2398         AVPacket pkt;
2399         double ipts_min;
2400         double opts_min;
2401
2402     redo:
2403         ipts_min= 1e100;
2404         opts_min= 1e100;
2405         /* if 'q' pressed, exits */
2406         if (!using_stdin) {
2407             if (q_pressed)
2408                 break;
2409             /* read_key() returns 0 on EOF */
2410             key = read_key();
2411             if (key == 'q')
2412                 break;
2413         }
2414
2415         /* select the stream that we must read now by looking at the
2416            smallest output pts */
2417         file_index = -1;
2418         for(i=0;i<nb_ostreams;i++) {
2419             double ipts, opts;
2420             ost = ost_table[i];
2421             os = output_files[ost->file_index];
2422             ist = ist_table[ost->source_index];
2423             if(ist->is_past_recording_time || no_packet[ist->file_index])
2424                 continue;
2425                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2426             ipts = (double)ist->pts;
2427             if (!file_table[ist->file_index].eof_reached){
2428                 if(ipts < ipts_min) {
2429                     ipts_min = ipts;
2430                     if(input_sync ) file_index = ist->file_index;
2431                 }
2432                 if(opts < opts_min) {
2433                     opts_min = opts;
2434                     if(!input_sync) file_index = ist->file_index;
2435                 }
2436             }
2437             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2438                 file_index= -1;
2439                 break;
2440             }
2441         }
2442         /* if none, if is finished */
2443         if (file_index < 0) {
2444             if(no_packet_count){
2445                 no_packet_count=0;
2446                 memset(no_packet, 0, sizeof(no_packet));
2447                 usleep(10000);
2448                 continue;
2449             }
2450             break;
2451         }
2452
2453         /* finish if limit size exhausted */
2454         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2455             break;
2456
2457         /* read a frame from it and output it in the fifo */
2458         is = input_files[file_index];
2459         ret= av_read_frame(is, &pkt);
2460         if(ret == AVERROR(EAGAIN)){
2461             no_packet[file_index]=1;
2462             no_packet_count++;
2463             continue;
2464         }
2465         if (ret < 0) {
2466             file_table[file_index].eof_reached = 1;
2467             if (opt_shortest)
2468                 break;
2469             else
2470                 continue;
2471         }
2472
2473         no_packet_count=0;
2474         memset(no_packet, 0, sizeof(no_packet));
2475
2476         if (do_pkt_dump) {
2477             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2478         }
2479         /* the following test is needed in case new streams appear
2480            dynamically in stream : we ignore them */
2481         if (pkt.stream_index >= file_table[file_index].nb_streams)
2482             goto discard_packet;
2483         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2484         ist = ist_table[ist_index];
2485         if (ist->discard)
2486             goto discard_packet;
2487
2488         if (pkt.dts != AV_NOPTS_VALUE)
2489             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2490         if (pkt.pts != AV_NOPTS_VALUE)
2491             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2492
2493         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2494             && input_files_ts_scale[file_index][pkt.stream_index]){
2495             if(pkt.pts != AV_NOPTS_VALUE)
2496                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2497             if(pkt.dts != AV_NOPTS_VALUE)
2498                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2499         }
2500
2501 //        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);
2502         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2503             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2504             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2505             int64_t delta= pkt_dts - ist->next_pts;
2506             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2507                 input_files_ts_offset[ist->file_index]-= delta;
2508                 if (verbose > 2)
2509                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2510                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2511                 if(pkt.pts != AV_NOPTS_VALUE)
2512                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2513             }
2514         }
2515
2516         /* finish if recording time exhausted */
2517         if (recording_time != INT64_MAX &&
2518             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2519             ist->is_past_recording_time = 1;
2520             goto discard_packet;
2521         }
2522
2523         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2524         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2525
2526             if (verbose >= 0)
2527                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2528                         ist->file_index, ist->index);
2529             if (exit_on_error)
2530                 ffmpeg_exit(1);
2531             av_free_packet(&pkt);
2532             goto redo;
2533         }
2534
2535     discard_packet:
2536         av_free_packet(&pkt);
2537
2538         /* dump report by using the output first video and audio streams */
2539         print_report(output_files, ost_table, nb_ostreams, 0);
2540     }
2541
2542     /* at the end of stream, we must flush the decoder buffers */
2543     for(i=0;i<nb_istreams;i++) {
2544         ist = ist_table[i];
2545         if (ist->decoding_needed) {
2546             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2547         }
2548     }
2549
2550     term_exit();
2551
2552     /* write the trailer if needed and close file */
2553     for(i=0;i<nb_output_files;i++) {
2554         os = output_files[i];
2555         av_write_trailer(os);
2556     }
2557
2558     /* dump report by using the first video and audio streams */
2559     print_report(output_files, ost_table, nb_ostreams, 1);
2560
2561     /* close each encoder */
2562     for(i=0;i<nb_ostreams;i++) {
2563         ost = ost_table[i];
2564         if (ost->encoding_needed) {
2565             av_freep(&ost->st->codec->stats_in);
2566             avcodec_close(ost->st->codec);
2567         }
2568     }
2569
2570     /* close each decoder */
2571     for(i=0;i<nb_istreams;i++) {
2572         ist = ist_table[i];
2573         if (ist->decoding_needed) {
2574             avcodec_close(ist->st->codec);
2575         }
2576     }
2577 #if CONFIG_AVFILTER
2578     if (graph) {
2579         avfilter_graph_destroy(graph);
2580         av_freep(&graph);
2581     }
2582 #endif
2583
2584     /* finished ! */
2585     ret = 0;
2586
2587  fail:
2588     av_freep(&bit_buffer);
2589     av_free(file_table);
2590
2591     if (ist_table) {
2592         for(i=0;i<nb_istreams;i++) {
2593             ist = ist_table[i];
2594             av_free(ist);
2595         }
2596         av_free(ist_table);
2597     }
2598     if (ost_table) {
2599         for(i=0;i<nb_ostreams;i++) {
2600             ost = ost_table[i];
2601             if (ost) {
2602                 if (ost->st->stream_copy)
2603                     av_freep(&ost->st->codec->extradata);
2604                 if (ost->logfile) {
2605                     fclose(ost->logfile);
2606                     ost->logfile = NULL;
2607                 }
2608                 av_fifo_free(ost->fifo); /* works even if fifo is not
2609                                              initialized but set to zero */
2610                 av_free(ost->pict_tmp.data[0]);
2611                 av_free(ost->forced_kf_pts);
2612                 if (ost->video_resample)
2613                     sws_freeContext(ost->img_resample_ctx);
2614                 if (ost->resample)
2615                     audio_resample_close(ost->resample);
2616                 if (ost->reformat_ctx)
2617                     av_audio_convert_free(ost->reformat_ctx);
2618                 av_free(ost);
2619             }
2620         }
2621         av_free(ost_table);
2622     }
2623     return ret;
2624 }
2625
2626 static void opt_format(const char *arg)
2627 {
2628     /* compatibility stuff for pgmyuv */
2629     if (!strcmp(arg, "pgmyuv")) {
2630         pgmyuv_compatibility_hack=1;
2631 //        opt_image_format(arg);
2632         arg = "image2";
2633         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2634     }
2635
2636     last_asked_format = arg;
2637 }
2638
2639 static void opt_video_rc_override_string(const char *arg)
2640 {
2641     video_rc_override_string = arg;
2642 }
2643
2644 static int opt_me_threshold(const char *opt, const char *arg)
2645 {
2646     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2647     return 0;
2648 }
2649
2650 static int opt_verbose(const char *opt, const char *arg)
2651 {
2652     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2653     return 0;
2654 }
2655
2656 static int opt_frame_rate(const char *opt, const char *arg)
2657 {
2658     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2659         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2660         ffmpeg_exit(1);
2661     }
2662     return 0;
2663 }
2664
2665 static int opt_bitrate(const char *opt, const char *arg)
2666 {
2667     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2668
2669     opt_default(opt, arg);
2670
2671     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2672         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2673
2674     return 0;
2675 }
2676
2677 static int opt_frame_crop(const char *opt, const char *arg)
2678 {
2679     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2680     return AVERROR(EINVAL);
2681 }
2682
2683 static void opt_frame_size(const char *arg)
2684 {
2685     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2686         fprintf(stderr, "Incorrect frame size\n");
2687         ffmpeg_exit(1);
2688     }
2689 }
2690
2691 static int opt_pad(const char *opt, const char *arg) {
2692     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2693     return -1;
2694 }
2695
2696 static void opt_frame_pix_fmt(const char *arg)
2697 {
2698     if (strcmp(arg, "list")) {
2699         frame_pix_fmt = av_get_pix_fmt(arg);
2700         if (frame_pix_fmt == PIX_FMT_NONE) {
2701             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2702             ffmpeg_exit(1);
2703         }
2704     } else {
2705         show_pix_fmts();
2706         ffmpeg_exit(0);
2707     }
2708 }
2709
2710 static void opt_frame_aspect_ratio(const char *arg)
2711 {
2712     int x = 0, y = 0;
2713     double ar = 0;
2714     const char *p;
2715     char *end;
2716
2717     p = strchr(arg, ':');
2718     if (p) {
2719         x = strtol(arg, &end, 10);
2720         if (end == p)
2721             y = strtol(end+1, &end, 10);
2722         if (x > 0 && y > 0)
2723             ar = (double)x / (double)y;
2724     } else
2725         ar = strtod(arg, NULL);
2726
2727     if (!ar) {
2728         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2729         ffmpeg_exit(1);
2730     }
2731     frame_aspect_ratio = ar;
2732 }
2733
2734 static int opt_metadata(const char *opt, const char *arg)
2735 {
2736     char *mid= strchr(arg, '=');
2737
2738     if(!mid){
2739         fprintf(stderr, "Missing =\n");
2740         ffmpeg_exit(1);
2741     }
2742     *mid++= 0;
2743
2744     av_metadata_set2(&metadata, arg, mid, 0);
2745
2746     return 0;
2747 }
2748
2749 static void opt_qscale(const char *arg)
2750 {
2751     video_qscale = atof(arg);
2752     if (video_qscale <= 0 ||
2753         video_qscale > 255) {
2754         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2755         ffmpeg_exit(1);
2756     }
2757 }
2758
2759 static void opt_top_field_first(const char *arg)
2760 {
2761     top_field_first= atoi(arg);
2762 }
2763
2764 static int opt_thread_count(const char *opt, const char *arg)
2765 {
2766     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2767 #if !HAVE_THREADS
2768     if (verbose >= 0)
2769         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2770 #endif
2771     return 0;
2772 }
2773
2774 static void opt_audio_sample_fmt(const char *arg)
2775 {
2776     if (strcmp(arg, "list"))
2777         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2778     else {
2779         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2780         ffmpeg_exit(0);
2781     }
2782 }
2783
2784 static int opt_audio_rate(const char *opt, const char *arg)
2785 {
2786     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2787     return 0;
2788 }
2789
2790 static int opt_audio_channels(const char *opt, const char *arg)
2791 {
2792     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2793     return 0;
2794 }
2795
2796 static void opt_video_channel(const char *arg)
2797 {
2798     video_channel = strtol(arg, NULL, 0);
2799 }
2800
2801 static void opt_video_standard(const char *arg)
2802 {
2803     video_standard = av_strdup(arg);
2804 }
2805
2806 static void opt_codec(int *pstream_copy, char **pcodec_name,
2807                       int codec_type, const char *arg)
2808 {
2809     av_freep(pcodec_name);
2810     if (!strcmp(arg, "copy")) {
2811         *pstream_copy = 1;
2812     } else {
2813         *pcodec_name = av_strdup(arg);
2814     }
2815 }
2816
2817 static void opt_audio_codec(const char *arg)
2818 {
2819     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2820 }
2821
2822 static void opt_audio_tag(const char *arg)
2823 {
2824     char *tail;
2825     audio_codec_tag= strtol(arg, &tail, 0);
2826
2827     if(!tail || *tail)
2828         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2829 }
2830
2831 static void opt_video_tag(const char *arg)
2832 {
2833     char *tail;
2834     video_codec_tag= strtol(arg, &tail, 0);
2835
2836     if(!tail || *tail)
2837         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2838 }
2839
2840 static void opt_video_codec(const char *arg)
2841 {
2842     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2843 }
2844
2845 static void opt_subtitle_codec(const char *arg)
2846 {
2847     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2848 }
2849
2850 static void opt_subtitle_tag(const char *arg)
2851 {
2852     char *tail;
2853     subtitle_codec_tag= strtol(arg, &tail, 0);
2854
2855     if(!tail || *tail)
2856         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2857 }
2858
2859 static void opt_map(const char *arg)
2860 {
2861     AVStreamMap *m;
2862     char *p;
2863
2864     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2865     m = &stream_maps[nb_stream_maps-1];
2866
2867     m->file_index = strtol(arg, &p, 0);
2868     if (*p)
2869         p++;
2870
2871     m->stream_index = strtol(p, &p, 0);
2872     if (*p) {
2873         p++;
2874         m->sync_file_index = strtol(p, &p, 0);
2875         if (*p)
2876             p++;
2877         m->sync_stream_index = strtol(p, &p, 0);
2878     } else {
2879         m->sync_file_index = m->file_index;
2880         m->sync_stream_index = m->stream_index;
2881     }
2882 }
2883
2884 static void opt_map_meta_data(const char *arg)
2885 {
2886     AVMetaDataMap *m;
2887     char *p;
2888
2889     m = &meta_data_maps[nb_meta_data_maps++];
2890
2891     m->out_file = strtol(arg, &p, 0);
2892     if (*p)
2893         p++;
2894
2895     m->in_file = strtol(p, &p, 0);
2896 }
2897
2898 static void opt_input_ts_scale(const char *arg)
2899 {
2900     unsigned int stream;
2901     double scale;
2902     char *p;
2903
2904     stream = strtol(arg, &p, 0);
2905     if (*p)
2906         p++;
2907     scale= strtod(p, &p);
2908
2909     if(stream >= MAX_STREAMS)
2910         ffmpeg_exit(1);
2911
2912     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);
2913     input_files_ts_scale[nb_input_files][stream]= scale;
2914 }
2915
2916 static int opt_recording_time(const char *opt, const char *arg)
2917 {
2918     recording_time = parse_time_or_die(opt, arg, 1);
2919     return 0;
2920 }
2921
2922 static int opt_start_time(const char *opt, const char *arg)
2923 {
2924     start_time = parse_time_or_die(opt, arg, 1);
2925     return 0;
2926 }
2927
2928 static int opt_recording_timestamp(const char *opt, const char *arg)
2929 {
2930     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2931     return 0;
2932 }
2933
2934 static int opt_input_ts_offset(const char *opt, const char *arg)
2935 {
2936     input_ts_offset = parse_time_or_die(opt, arg, 1);
2937     return 0;
2938 }
2939
2940 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
2941 {
2942     const char *codec_string = encoder ? "encoder" : "decoder";
2943     AVCodec *codec;
2944
2945     if(!name)
2946         return CODEC_ID_NONE;
2947     codec = encoder ?
2948         avcodec_find_encoder_by_name(name) :
2949         avcodec_find_decoder_by_name(name);
2950     if(!codec) {
2951         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2952         ffmpeg_exit(1);
2953     }
2954     if(codec->type != type) {
2955         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2956         ffmpeg_exit(1);
2957     }
2958     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
2959        strict > FF_COMPLIANCE_EXPERIMENTAL) {
2960         fprintf(stderr, "%s '%s' is experimental and might produce bad "
2961                 "results.\nAdd '-strict experimental' if you want to use it.\n",
2962                 codec_string, codec->name);
2963         codec = encoder ?
2964             avcodec_find_encoder(codec->id) :
2965             avcodec_find_decoder(codec->id);
2966         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
2967             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
2968                     codec_string, codec->name);
2969         ffmpeg_exit(1);
2970     }
2971     return codec->id;
2972 }
2973
2974 static void opt_input_file(const char *filename)
2975 {
2976     AVFormatContext *ic;
2977     AVFormatParameters params, *ap = &params;
2978     AVInputFormat *file_iformat = NULL;
2979     int err, i, ret, rfps, rfps_base;
2980     int64_t timestamp;
2981
2982     if (last_asked_format) {
2983         if (!(file_iformat = av_find_input_format(last_asked_format))) {
2984             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2985             ffmpeg_exit(1);
2986         }
2987         last_asked_format = NULL;
2988     }
2989
2990     if (!strcmp(filename, "-"))
2991         filename = "pipe:";
2992
2993     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2994                     !strcmp(filename, "/dev/stdin");
2995
2996     /* get default parameters from command line */
2997     ic = avformat_alloc_context();
2998     if (!ic) {
2999         print_error(filename, AVERROR(ENOMEM));
3000         ffmpeg_exit(1);
3001     }
3002
3003     memset(ap, 0, sizeof(*ap));
3004     ap->prealloced_context = 1;
3005     ap->sample_rate = audio_sample_rate;
3006     ap->channels = audio_channels;
3007     ap->time_base.den = frame_rate.num;
3008     ap->time_base.num = frame_rate.den;
3009     ap->width = frame_width;
3010     ap->height = frame_height;
3011     ap->pix_fmt = frame_pix_fmt;
3012    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3013     ap->channel = video_channel;
3014     ap->standard = video_standard;
3015
3016     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3017
3018     ic->video_codec_id   =
3019         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3020                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3021     ic->audio_codec_id   =
3022         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3023                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3024     ic->subtitle_codec_id=
3025         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3026                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3027     ic->flags |= AVFMT_FLAG_NONBLOCK;
3028
3029     if(pgmyuv_compatibility_hack)
3030         ic->video_codec_id= CODEC_ID_PGMYUV;
3031
3032     /* open the input file with generic libav function */
3033     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3034     if (err < 0) {
3035         print_error(filename, err);
3036         ffmpeg_exit(1);
3037     }
3038     if(opt_programid) {
3039         int i, j;
3040         int found=0;
3041         for(i=0; i<ic->nb_streams; i++){
3042             ic->streams[i]->discard= AVDISCARD_ALL;
3043         }
3044         for(i=0; i<ic->nb_programs; i++){
3045             AVProgram *p= ic->programs[i];
3046             if(p->id != opt_programid){
3047                 p->discard = AVDISCARD_ALL;
3048             }else{
3049                 found=1;
3050                 for(j=0; j<p->nb_stream_indexes; j++){
3051                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3052                 }
3053             }
3054         }
3055         if(!found){
3056             fprintf(stderr, "Specified program id not found\n");
3057             ffmpeg_exit(1);
3058         }
3059         opt_programid=0;
3060     }
3061
3062     ic->loop_input = loop_input;
3063
3064     /* If not enough info to get the stream parameters, we decode the
3065        first frames to get it. (used in mpeg case for example) */
3066     ret = av_find_stream_info(ic);
3067     if (ret < 0 && verbose >= 0) {
3068         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3069         av_close_input_file(ic);
3070         ffmpeg_exit(1);
3071     }
3072
3073     timestamp = start_time;
3074     /* add the stream start time */
3075     if (ic->start_time != AV_NOPTS_VALUE)
3076         timestamp += ic->start_time;
3077
3078     /* if seeking requested, we execute it */
3079     if (start_time != 0) {
3080         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3081         if (ret < 0) {
3082             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3083                     filename, (double)timestamp / AV_TIME_BASE);
3084         }
3085         /* reset seek info */
3086         start_time = 0;
3087     }
3088
3089     /* update the current parameters so that they match the one of the input stream */
3090     for(i=0;i<ic->nb_streams;i++) {
3091         AVStream *st = ic->streams[i];
3092         AVCodecContext *dec = st->codec;
3093         avcodec_thread_init(dec, thread_count);
3094         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3095         switch (dec->codec_type) {
3096         case AVMEDIA_TYPE_AUDIO:
3097             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3098             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]);
3099             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3100             channel_layout    = dec->channel_layout;
3101             audio_channels    = dec->channels;
3102             audio_sample_rate = dec->sample_rate;
3103             audio_sample_fmt  = dec->sample_fmt;
3104             if(audio_disable)
3105                 st->discard= AVDISCARD_ALL;
3106             /* Note that av_find_stream_info can add more streams, and we
3107              * currently have no chance of setting up lowres decoding
3108              * early enough for them. */
3109             if (dec->lowres)
3110                 audio_sample_rate >>= dec->lowres;
3111             break;
3112         case AVMEDIA_TYPE_VIDEO:
3113             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3114             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]);
3115             frame_height = dec->height;
3116             frame_width  = dec->width;
3117             if(ic->streams[i]->sample_aspect_ratio.num)
3118                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3119             else
3120                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3121             frame_aspect_ratio *= (float) dec->width / dec->height;
3122             frame_pix_fmt = dec->pix_fmt;
3123             rfps      = ic->streams[i]->r_frame_rate.num;
3124             rfps_base = ic->streams[i]->r_frame_rate.den;
3125             if (dec->lowres) {
3126                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3127                 frame_height >>= dec->lowres;
3128                 frame_width  >>= dec->lowres;
3129             }
3130             if(me_threshold)
3131                 dec->debug |= FF_DEBUG_MV;
3132
3133             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3134
3135                 if (verbose >= 0)
3136                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3137                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3138
3139                     (float)rfps / rfps_base, rfps, rfps_base);
3140             }
3141             /* update the current frame rate to match the stream frame rate */
3142             frame_rate.num = rfps;
3143             frame_rate.den = rfps_base;
3144
3145             if(video_disable)
3146                 st->discard= AVDISCARD_ALL;
3147             else if(video_discard)
3148                 st->discard= video_discard;
3149             break;
3150         case AVMEDIA_TYPE_DATA:
3151             break;
3152         case AVMEDIA_TYPE_SUBTITLE:
3153             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3154             if(subtitle_disable)
3155                 st->discard = AVDISCARD_ALL;
3156             break;
3157         case AVMEDIA_TYPE_ATTACHMENT:
3158         case AVMEDIA_TYPE_UNKNOWN:
3159             break;
3160         default:
3161             abort();
3162         }
3163     }
3164
3165     input_files[nb_input_files] = ic;
3166     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3167     /* dump the file content */
3168     if (verbose >= 0)
3169         dump_format(ic, nb_input_files, filename, 0);
3170
3171     nb_input_files++;
3172
3173     video_channel = 0;
3174
3175     av_freep(&video_codec_name);
3176     av_freep(&audio_codec_name);
3177     av_freep(&subtitle_codec_name);
3178 }
3179
3180 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3181                                          int *has_subtitle_ptr)
3182 {
3183     int has_video, has_audio, has_subtitle, i, j;
3184     AVFormatContext *ic;
3185
3186     has_video = 0;
3187     has_audio = 0;
3188     has_subtitle = 0;
3189     for(j=0;j<nb_input_files;j++) {
3190         ic = input_files[j];
3191         for(i=0;i<ic->nb_streams;i++) {
3192             AVCodecContext *enc = ic->streams[i]->codec;
3193             switch(enc->codec_type) {
3194             case AVMEDIA_TYPE_AUDIO:
3195                 has_audio = 1;
3196                 break;
3197             case AVMEDIA_TYPE_VIDEO:
3198                 has_video = 1;
3199                 break;
3200             case AVMEDIA_TYPE_SUBTITLE:
3201                 has_subtitle = 1;
3202                 break;
3203             case AVMEDIA_TYPE_DATA:
3204             case AVMEDIA_TYPE_ATTACHMENT:
3205             case AVMEDIA_TYPE_UNKNOWN:
3206                 break;
3207             default:
3208                 abort();
3209             }
3210         }
3211     }
3212     *has_video_ptr = has_video;
3213     *has_audio_ptr = has_audio;
3214     *has_subtitle_ptr = has_subtitle;
3215 }
3216
3217 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
3218 {
3219     int idx = oc->nb_streams - 1;
3220     AVOutputStream *ost;
3221
3222     output_streams_for_file[file_idx] =
3223         grow_array(output_streams_for_file[file_idx],
3224                    sizeof(*output_streams_for_file[file_idx]),
3225                    &nb_output_streams_for_file[file_idx],
3226                    oc->nb_streams);
3227     ost = output_streams_for_file[file_idx][idx] =
3228         av_mallocz(sizeof(AVOutputStream));
3229     if (!ost) {
3230         fprintf(stderr, "Could not alloc output stream\n");
3231         ffmpeg_exit(1);
3232     }
3233     ost->file_index = file_idx;
3234     ost->index = idx;
3235     return ost;
3236 }
3237
3238 static void new_video_stream(AVFormatContext *oc, int file_idx)
3239 {
3240     AVStream *st;
3241     AVOutputStream *ost;
3242     AVCodecContext *video_enc;
3243     enum CodecID codec_id;
3244     AVCodec *codec= NULL;
3245
3246     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3247     if (!st) {
3248         fprintf(stderr, "Could not alloc stream\n");
3249         ffmpeg_exit(1);
3250     }
3251     ost = new_output_stream(oc, file_idx);
3252
3253     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3254     if(!video_stream_copy){
3255         if (video_codec_name) {
3256             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3257                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3258             codec = avcodec_find_encoder_by_name(video_codec_name);
3259             output_codecs[nb_output_codecs-1] = codec;
3260         } else {
3261             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3262             codec = avcodec_find_encoder(codec_id);
3263         }
3264     }
3265
3266     avcodec_get_context_defaults3(st->codec, codec);
3267     ost->bitstream_filters = video_bitstream_filters;
3268     video_bitstream_filters= NULL;
3269
3270     avcodec_thread_init(st->codec, thread_count);
3271
3272     video_enc = st->codec;
3273
3274     if(video_codec_tag)
3275         video_enc->codec_tag= video_codec_tag;
3276
3277     if(   (video_global_header&1)
3278        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3279         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3280         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3281     }
3282     if(video_global_header&2){
3283         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3284         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3285     }
3286
3287     if (video_stream_copy) {
3288         st->stream_copy = 1;
3289         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3290         video_enc->sample_aspect_ratio =
3291         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3292     } else {
3293         const char *p;
3294         int i;
3295         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3296
3297         video_enc->codec_id = codec_id;
3298         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3299
3300         if (codec && codec->supported_framerates && !force_fps)
3301             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3302         video_enc->time_base.den = fps.num;
3303         video_enc->time_base.num = fps.den;
3304
3305         video_enc->width = frame_width;
3306         video_enc->height = frame_height;
3307         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3308         video_enc->pix_fmt = frame_pix_fmt;
3309         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3310
3311         choose_pixel_fmt(st, codec);
3312
3313         if (intra_only)
3314             video_enc->gop_size = 0;
3315         if (video_qscale || same_quality) {
3316             video_enc->flags |= CODEC_FLAG_QSCALE;
3317             video_enc->global_quality=
3318                 st->quality = FF_QP2LAMBDA * video_qscale;
3319         }
3320
3321         if(intra_matrix)
3322             video_enc->intra_matrix = intra_matrix;
3323         if(inter_matrix)
3324             video_enc->inter_matrix = inter_matrix;
3325
3326         p= video_rc_override_string;
3327         for(i=0; p; i++){
3328             int start, end, q;
3329             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3330             if(e!=3){
3331                 fprintf(stderr, "error parsing rc_override\n");
3332                 ffmpeg_exit(1);
3333             }
3334             video_enc->rc_override=
3335                 av_realloc(video_enc->rc_override,
3336                            sizeof(RcOverride)*(i+1));
3337             video_enc->rc_override[i].start_frame= start;
3338             video_enc->rc_override[i].end_frame  = end;
3339             if(q>0){
3340                 video_enc->rc_override[i].qscale= q;
3341                 video_enc->rc_override[i].quality_factor= 1.0;
3342             }
3343             else{
3344                 video_enc->rc_override[i].qscale= 0;
3345                 video_enc->rc_override[i].quality_factor= -q/100.0;
3346             }
3347             p= strchr(p, '/');
3348             if(p) p++;
3349         }
3350         video_enc->rc_override_count=i;
3351         if (!video_enc->rc_initial_buffer_occupancy)
3352             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3353         video_enc->me_threshold= me_threshold;
3354         video_enc->intra_dc_precision= intra_dc_precision - 8;
3355
3356         if (do_psnr)
3357             video_enc->flags|= CODEC_FLAG_PSNR;
3358
3359         /* two pass mode */
3360         if (do_pass) {
3361             if (do_pass == 1) {
3362                 video_enc->flags |= CODEC_FLAG_PASS1;
3363             } else {
3364                 video_enc->flags |= CODEC_FLAG_PASS2;
3365             }
3366         }
3367
3368         if (forced_key_frames)
3369             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3370     }
3371     if (video_language) {
3372         av_metadata_set2(&st->metadata, "language", video_language, 0);
3373         av_freep(&video_language);
3374     }
3375
3376     /* reset some key parameters */
3377     video_disable = 0;
3378     av_freep(&video_codec_name);
3379     av_freep(&forced_key_frames);
3380     video_stream_copy = 0;
3381     frame_pix_fmt = PIX_FMT_NONE;
3382 }
3383
3384 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3385 {
3386     AVStream *st;
3387     AVOutputStream *ost;
3388     AVCodec *codec= NULL;
3389     AVCodecContext *audio_enc;
3390     enum CodecID codec_id;
3391
3392     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3393     if (!st) {
3394         fprintf(stderr, "Could not alloc stream\n");
3395         ffmpeg_exit(1);
3396     }
3397     ost = new_output_stream(oc, file_idx);
3398
3399     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3400     if(!audio_stream_copy){
3401         if (audio_codec_name) {
3402             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3403                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3404             codec = avcodec_find_encoder_by_name(audio_codec_name);
3405             output_codecs[nb_output_codecs-1] = codec;
3406         } else {
3407             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3408             codec = avcodec_find_encoder(codec_id);
3409         }
3410     }
3411
3412     avcodec_get_context_defaults3(st->codec, codec);
3413
3414     ost->bitstream_filters = audio_bitstream_filters;
3415     audio_bitstream_filters= NULL;
3416
3417     avcodec_thread_init(st->codec, thread_count);
3418
3419     audio_enc = st->codec;
3420     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3421
3422     if(audio_codec_tag)
3423         audio_enc->codec_tag= audio_codec_tag;
3424
3425     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3426         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3427         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3428     }
3429     if (audio_stream_copy) {
3430         st->stream_copy = 1;
3431         audio_enc->channels = audio_channels;
3432         audio_enc->sample_rate = audio_sample_rate;
3433     } else {
3434         audio_enc->codec_id = codec_id;
3435         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3436
3437         if (audio_qscale > QSCALE_NONE) {
3438             audio_enc->flags |= CODEC_FLAG_QSCALE;
3439             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3440         }
3441         audio_enc->channels = audio_channels;
3442         audio_enc->sample_fmt = audio_sample_fmt;
3443         audio_enc->sample_rate = audio_sample_rate;
3444         audio_enc->channel_layout = channel_layout;
3445         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3446             audio_enc->channel_layout = 0;
3447         choose_sample_fmt(st, codec);
3448         choose_sample_rate(st, codec);
3449     }
3450     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3451     if (audio_language) {
3452         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3453         av_freep(&audio_language);
3454     }
3455
3456     /* reset some key parameters */
3457     audio_disable = 0;
3458     av_freep(&audio_codec_name);
3459     audio_stream_copy = 0;
3460 }
3461
3462 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3463 {
3464     AVStream *st;
3465     AVOutputStream *ost;
3466     AVCodec *codec=NULL;
3467     AVCodecContext *subtitle_enc;
3468
3469     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3470     if (!st) {
3471         fprintf(stderr, "Could not alloc stream\n");
3472         ffmpeg_exit(1);
3473     }
3474     ost = new_output_stream(oc, file_idx);
3475     subtitle_enc = st->codec;
3476     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3477     if(!subtitle_stream_copy){
3478         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3479                                                    avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3480         codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3481     }
3482     avcodec_get_context_defaults3(st->codec, codec);
3483
3484     ost->bitstream_filters = subtitle_bitstream_filters;
3485     subtitle_bitstream_filters= NULL;
3486
3487     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3488
3489     if(subtitle_codec_tag)
3490         subtitle_enc->codec_tag= subtitle_codec_tag;
3491
3492     if (subtitle_stream_copy) {
3493         st->stream_copy = 1;
3494     } else {
3495         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3496     }
3497
3498     if (subtitle_language) {
3499         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3500         av_freep(&subtitle_language);
3501     }
3502
3503     subtitle_disable = 0;
3504     av_freep(&subtitle_codec_name);
3505     subtitle_stream_copy = 0;
3506 }
3507
3508 static int opt_new_stream(const char *opt, const char *arg)
3509 {
3510     AVFormatContext *oc;
3511     int file_idx = nb_output_files - 1;
3512     if (nb_output_files <= 0) {
3513         fprintf(stderr, "At least one output file must be specified\n");
3514         ffmpeg_exit(1);
3515     }
3516     oc = output_files[file_idx];
3517
3518     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3519     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3520     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3521     else av_assert0(0);
3522     return 0;
3523 }
3524
3525 /* arg format is "output-stream-index:streamid-value". */
3526 static int opt_streamid(const char *opt, const char *arg)
3527 {
3528     int idx;
3529     char *p;
3530     char idx_str[16];
3531
3532     strncpy(idx_str, arg, sizeof(idx_str));
3533     idx_str[sizeof(idx_str)-1] = '\0';
3534     p = strchr(idx_str, ':');
3535     if (!p) {
3536         fprintf(stderr,
3537                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3538                 arg, opt);
3539         ffmpeg_exit(1);
3540     }
3541     *p++ = '\0';
3542     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3543     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3544     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3545     return 0;
3546 }
3547
3548 static void opt_output_file(const char *filename)
3549 {
3550     AVFormatContext *oc;
3551     int err, use_video, use_audio, use_subtitle;
3552     int input_has_video, input_has_audio, input_has_subtitle;
3553     AVFormatParameters params, *ap = &params;
3554     AVOutputFormat *file_oformat;
3555     AVMetadataTag *tag = NULL;
3556
3557     if (!strcmp(filename, "-"))
3558         filename = "pipe:";
3559
3560     oc = avformat_alloc_context();
3561     if (!oc) {
3562         print_error(filename, AVERROR(ENOMEM));
3563         ffmpeg_exit(1);
3564     }
3565
3566     if (last_asked_format) {
3567         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3568         if (!file_oformat) {
3569             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3570             ffmpeg_exit(1);
3571         }
3572         last_asked_format = NULL;
3573     } else {
3574         file_oformat = av_guess_format(NULL, filename, NULL);
3575         if (!file_oformat) {
3576             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3577                     filename);
3578             ffmpeg_exit(1);
3579         }
3580     }
3581
3582     oc->oformat = file_oformat;
3583     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3584
3585     if (!strcmp(file_oformat->name, "ffm") &&
3586         av_strstart(filename, "http:", NULL)) {
3587         /* special case for files sent to ffserver: we get the stream
3588            parameters from ffserver */
3589         int err = read_ffserver_streams(oc, filename);
3590         if (err < 0) {
3591             print_error(filename, err);
3592             ffmpeg_exit(1);
3593         }
3594     } else {
3595         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3596         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3597         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3598
3599         /* disable if no corresponding type found and at least one
3600            input file */
3601         if (nb_input_files > 0) {
3602             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3603                                          &input_has_subtitle);
3604             if (!input_has_video)
3605                 use_video = 0;
3606             if (!input_has_audio)
3607                 use_audio = 0;
3608             if (!input_has_subtitle)
3609                 use_subtitle = 0;
3610         }
3611
3612         /* manual disable */
3613         if (audio_disable)    use_audio    = 0;
3614         if (video_disable)    use_video    = 0;
3615         if (subtitle_disable) use_subtitle = 0;
3616
3617         if (use_video)    new_video_stream(oc, nb_output_files);
3618         if (use_audio)    new_audio_stream(oc, nb_output_files);
3619         if (use_subtitle) new_subtitle_stream(oc, nb_output_files);
3620
3621         oc->timestamp = recording_timestamp;
3622
3623         while ((tag = av_metadata_get(metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
3624             av_metadata_set2(&oc->metadata, tag->key, tag->value, 0);
3625         av_metadata_free(&metadata);
3626     }
3627
3628     output_files[nb_output_files++] = oc;
3629
3630     /* check filename in case of an image number is expected */
3631     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3632         if (!av_filename_number_test(oc->filename)) {
3633             print_error(oc->filename, AVERROR_NUMEXPECTED);
3634             ffmpeg_exit(1);
3635         }
3636     }
3637
3638     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3639         /* test if it already exists to avoid loosing precious files */
3640         if (!file_overwrite &&
3641             (strchr(filename, ':') == NULL ||
3642              filename[1] == ':' ||
3643              av_strstart(filename, "file:", NULL))) {
3644             if (url_exist(filename)) {
3645                 if (!using_stdin) {
3646                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3647                     fflush(stderr);
3648                     if (!read_yesno()) {
3649                         fprintf(stderr, "Not overwriting - exiting\n");
3650                         ffmpeg_exit(1);
3651                     }
3652                 }
3653                 else {
3654                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3655                     ffmpeg_exit(1);
3656                 }
3657             }
3658         }
3659
3660         /* open the file */
3661         if ((err = url_fopen(&oc->pb, filename, URL_WRONLY)) < 0) {
3662             print_error(filename, err);
3663             ffmpeg_exit(1);
3664         }
3665     }
3666
3667     memset(ap, 0, sizeof(*ap));
3668     if (av_set_parameters(oc, ap) < 0) {
3669         fprintf(stderr, "%s: Invalid encoding parameters\n",
3670                 oc->filename);
3671         ffmpeg_exit(1);
3672     }
3673
3674     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3675     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3676     oc->loop_output = loop_output;
3677     oc->flags |= AVFMT_FLAG_NONBLOCK;
3678
3679     set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
3680
3681     nb_streamid_map = 0;
3682     av_freep(&forced_key_frames);
3683 }
3684
3685 /* same option as mencoder */
3686 static void opt_pass(const char *pass_str)
3687 {
3688     int pass;
3689  &nb