8dd10eff6e176feaab0731bad37ec9cc8b1fe37b
[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
229 static int pgmyuv_compatibility_hack=0;
230 static float dts_delta_threshold = 10;
231
232 static unsigned int sws_flags = SWS_BICUBIC;
233
234 static int64_t timer_start;
235
236 static uint8_t *audio_buf;
237 static uint8_t *audio_out;
238 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
239
240 static short *samples;
241
242 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
243 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
245
246 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
247
248 struct AVInputStream;
249
250 typedef struct AVOutputStream {
251     int file_index;          /* file index */
252     int index;               /* stream index in the output file */
253     int source_index;        /* AVInputStream index */
254     AVStream *st;            /* stream in the output file */
255     int encoding_needed;     /* true if encoding needed for this stream */
256     int frame_number;
257     /* input pts and corresponding output pts
258        for A/V sync */
259     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
260     struct AVInputStream *sync_ist; /* input stream to sync against */
261     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
262     AVBitStreamFilterContext *bitstream_filters;
263     /* video only */
264     int video_resample;
265     AVFrame pict_tmp;      /* temporary image for resampling */
266     struct SwsContext *img_resample_ctx; /* for image resampling */
267     int resample_height;
268     int resample_width;
269     int resample_pix_fmt;
270
271     /* full frame size of first frame */
272     int original_height;
273     int original_width;
274
275     /* audio only */
276     int audio_resample;
277     ReSampleContext *resample; /* for audio resampling */
278     int reformat_pair;
279     AVAudioConvert *reformat_ctx;
280     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
281     FILE *logfile;
282 } AVOutputStream;
283
284 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
285 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
286
287 typedef struct AVInputStream {
288     int file_index;
289     int index;
290     AVStream *st;
291     int discard;             /* true if stream data should be discarded */
292     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
293     int64_t sample_index;      /* current sample */
294
295     int64_t       start;     /* time when read started */
296     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
297                                 is not defined */
298     int64_t       pts;       /* current pts */
299     PtsCorrectionContext pts_ctx;
300     int is_start;            /* is 1 at the start and after a discontinuity */
301     int showed_multi_packet_warning;
302     int is_past_recording_time;
303 #if CONFIG_AVFILTER
304     AVFilterContext *output_video_filter;
305     AVFilterContext *input_video_filter;
306     AVFrame *filter_frame;
307     int has_filter_frame;
308     AVFilterBufferRef *picref;
309 #endif
310 } AVInputStream;
311
312 typedef struct AVInputFile {
313     int eof_reached;      /* true if eof reached */
314     int ist_index;        /* index of first stream in ist_table */
315     int buffer_size;      /* current total buffer size */
316     int nb_streams;       /* nb streams we are aware of */
317 } AVInputFile;
318
319 #if HAVE_TERMIOS_H
320
321 /* init terminal so that we can grab keys */
322 static struct termios oldtty;
323 #endif
324
325 #if CONFIG_AVFILTER
326
327 static int get_filtered_video_pic(AVFilterContext *ctx,
328                                   AVFilterBufferRef **picref, AVFrame *pic2,
329                                   uint64_t *pts)
330 {
331     AVFilterBufferRef *pic;
332
333     if(avfilter_request_frame(ctx->inputs[0]))
334         return -1;
335     if(!(pic = ctx->inputs[0]->cur_buf))
336         return -1;
337     *picref = pic;
338     ctx->inputs[0]->cur_buf = NULL;
339
340     *pts          = pic->pts;
341
342     memcpy(pic2->data,     pic->data,     sizeof(pic->data));
343     memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
344     pic2->interlaced_frame = pic->video->interlaced;
345     pic2->top_field_first  = pic->video->top_field_first;
346
347     return 1;
348 }
349
350 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
351 {
352     AVFilterContext *last_filter, *filter;
353     /** filter graph containing all filters including input & output */
354     AVCodecContext *codec = ost->st->codec;
355     AVCodecContext *icodec = ist->st->codec;
356     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
357     char args[255];
358     int ret;
359
360     graph = av_mallocz(sizeof(AVFilterGraph));
361
362     if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
363         return ret;
364     if ((ret = avfilter_open(&ist->output_video_filter, &ffsink, "out")) < 0)
365         return ret;
366
367     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
368              ist->st->codec->height, ist->st->codec->pix_fmt,
369              ist->st->time_base.num, ist->st->time_base.den);
370     if ((ret = avfilter_init_filter(ist->input_video_filter, args, NULL)) < 0)
371         return ret;
372     if ((ret = avfilter_init_filter(ist->output_video_filter, NULL, &ffsink_ctx)) < 0)
373         return ret;
374
375     /* add input and output filters to the overall graph */
376     avfilter_graph_add_filter(graph, ist->input_video_filter);
377     avfilter_graph_add_filter(graph, ist->output_video_filter);
378
379     last_filter = ist->input_video_filter;
380
381     if (codec->width  != icodec->width || codec->height != icodec->height) {
382         snprintf(args, 255, "%d:%d:flags=0x%X",
383                  codec->width,
384                  codec->height,
385                  (int)av_get_int(sws_opts, "sws_flags", NULL));
386         if ((ret = avfilter_open(&filter, avfilter_get_by_name("scale"), NULL)) < 0)
387             return ret;
388         if ((ret = avfilter_init_filter(filter, args, NULL)) < 0)
389             return ret;
390         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
391             return ret;
392         last_filter = filter;
393         avfilter_graph_add_filter(graph, last_filter);
394     }
395
396     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
397     graph->scale_sws_opts = av_strdup(args);
398
399     if (vfilters) {
400         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
401         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
402
403         outputs->name    = av_strdup("in");
404         outputs->filter  = last_filter;
405         outputs->pad_idx = 0;
406         outputs->next    = NULL;
407
408         inputs->name    = av_strdup("out");
409         inputs->filter  = ist->output_video_filter;
410         inputs->pad_idx = 0;
411         inputs->next    = NULL;
412
413         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
414             return ret;
415         av_freep(&vfilters);
416     } else {
417         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
418             return ret;
419     }
420
421     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
422         return ret;
423
424     codec->width  = ist->output_video_filter->inputs[0]->w;
425     codec->height = ist->output_video_filter->inputs[0]->h;
426
427     return 0;
428 }
429 #endif /* CONFIG_AVFILTER */
430
431 static void term_exit(void)
432 {
433     av_log(NULL, AV_LOG_QUIET, "");
434 #if HAVE_TERMIOS_H
435     tcsetattr (0, TCSANOW, &oldtty);
436 #endif
437 }
438
439 static volatile int received_sigterm = 0;
440
441 static void
442 sigterm_handler(int sig)
443 {
444     received_sigterm = sig;
445     term_exit();
446 }
447
448 static void term_init(void)
449 {
450 #if HAVE_TERMIOS_H
451     struct termios tty;
452
453     tcgetattr (0, &tty);
454     oldtty = tty;
455     atexit(term_exit);
456
457     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
458                           |INLCR|IGNCR|ICRNL|IXON);
459     tty.c_oflag |= OPOST;
460     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
461     tty.c_cflag &= ~(CSIZE|PARENB);
462     tty.c_cflag |= CS8;
463     tty.c_cc[VMIN] = 1;
464     tty.c_cc[VTIME] = 0;
465
466     tcsetattr (0, TCSANOW, &tty);
467     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
468 #endif
469
470     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
471     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
472 #ifdef SIGXCPU
473     signal(SIGXCPU, sigterm_handler);
474 #endif
475 }
476
477 /* read a key without blocking */
478 static int read_key(void)
479 {
480 #if HAVE_TERMIOS_H
481     int n = 1;
482     unsigned char ch;
483     struct timeval tv;
484     fd_set rfds;
485
486     FD_ZERO(&rfds);
487     FD_SET(0, &rfds);
488     tv.tv_sec = 0;
489     tv.tv_usec = 0;
490     n = select(1, &rfds, NULL, NULL, &tv);
491     if (n > 0) {
492         n = read(0, &ch, 1);
493         if (n == 1)
494             return ch;
495
496         return n;
497     }
498 #elif HAVE_CONIO_H
499     if(kbhit())
500         return(getch());
501 #endif
502     return -1;
503 }
504
505 static int decode_interrupt_cb(void)
506 {
507     return q_pressed || (q_pressed = read_key() == 'q');
508 }
509
510 static int ffmpeg_exit(int ret)
511 {
512     int i;
513
514     /* close files */
515     for(i=0;i<nb_output_files;i++) {
516         /* maybe av_close_output_file ??? */
517         AVFormatContext *s = output_files[i];
518         int j;
519         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
520             url_fclose(s->pb);
521         for(j=0;j<s->nb_streams;j++) {
522             av_metadata_free(&s->streams[j]->metadata);
523             av_free(s->streams[j]->codec);
524             av_free(s->streams[j]->info);
525             av_free(s->streams[j]);
526         }
527         for(j=0;j<s->nb_programs;j++) {
528             av_metadata_free(&s->programs[j]->metadata);
529         }
530         for(j=0;j<s->nb_chapters;j++) {
531             av_metadata_free(&s->chapters[j]->metadata);
532         }
533         av_metadata_free(&s->metadata);
534         av_free(s);
535         av_free(output_streams_for_file[i]);
536     }
537     for(i=0;i<nb_input_files;i++) {
538         av_close_input_file(input_files[i]);
539         av_free(input_files_ts_scale[i]);
540     }
541
542     av_free(intra_matrix);
543     av_free(inter_matrix);
544
545     if (vstats_file)
546         fclose(vstats_file);
547     av_free(vstats_filename);
548
549     av_free(opt_names);
550     av_free(streamid_map);
551     av_free(input_codecs);
552     av_free(output_codecs);
553     av_free(stream_maps);
554
555     av_free(video_codec_name);
556     av_free(audio_codec_name);
557     av_free(subtitle_codec_name);
558
559     av_free(video_standard);
560
561     uninit_opts();
562     av_free(audio_buf);
563     av_free(audio_out);
564     allocated_audio_buf_size= allocated_audio_out_size= 0;
565     av_free(samples);
566
567 #if CONFIG_AVFILTER
568     avfilter_uninit();
569 #endif
570
571     if (received_sigterm) {
572         fprintf(stderr,
573             "Received signal %d: terminating.\n",
574             (int) received_sigterm);
575         exit (255);
576     }
577
578     exit(ret); /* not all OS-es handle main() return value */
579     return ret;
580 }
581
582 /* similar to ff_dynarray_add() and av_fast_realloc() */
583 static void *grow_array(void *array, int elem_size, int *size, int new_size)
584 {
585     if (new_size >= INT_MAX / elem_size) {
586         fprintf(stderr, "Array too big.\n");
587         ffmpeg_exit(1);
588     }
589     if (*size < new_size) {
590         uint8_t *tmp = av_realloc(array, new_size*elem_size);
591         if (!tmp) {
592             fprintf(stderr, "Could not alloc buffer.\n");
593             ffmpeg_exit(1);
594         }
595         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
596         *size = new_size;
597         return tmp;
598     }
599     return array;
600 }
601
602 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
603 {
604     if(codec && codec->sample_fmts){
605         const enum SampleFormat *p= codec->sample_fmts;
606         for(; *p!=-1; p++){
607             if(*p == st->codec->sample_fmt)
608                 break;
609         }
610         if(*p == -1)
611             st->codec->sample_fmt = codec->sample_fmts[0];
612     }
613 }
614
615 static void choose_sample_rate(AVStream *st, AVCodec *codec)
616 {
617     if(codec && codec->supported_samplerates){
618         const int *p= codec->supported_samplerates;
619         int best=0;
620         int best_dist=INT_MAX;
621         for(; *p; p++){
622             int dist= abs(st->codec->sample_rate - *p);
623             if(dist < best_dist){
624                 best_dist= dist;
625                 best= *p;
626             }
627         }
628         if(best_dist){
629             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
630         }
631         st->codec->sample_rate= best;
632     }
633 }
634
635 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
636 {
637     if(codec && codec->pix_fmts){
638         const enum PixelFormat *p= codec->pix_fmts;
639         for(; *p!=-1; p++){
640             if(*p == st->codec->pix_fmt)
641                 break;
642         }
643         if(*p == -1
644            && !(   st->codec->codec_id==CODEC_ID_MJPEG
645                 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
646                 && (   st->codec->pix_fmt == PIX_FMT_YUV420P
647                     || st->codec->pix_fmt == PIX_FMT_YUV422P)))
648             st->codec->pix_fmt = codec->pix_fmts[0];
649     }
650 }
651
652 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
653 {
654     int i, err;
655     AVFormatContext *ic;
656     int nopts = 0;
657
658     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
659     if (err < 0)
660         return err;
661     /* copy stream format */
662     s->nb_streams = ic->nb_streams;
663     for(i=0;i<ic->nb_streams;i++) {
664         AVStream *st;
665         AVCodec *codec;
666
667         // FIXME: a more elegant solution is needed
668         st = av_mallocz(sizeof(AVStream));
669         memcpy(st, ic->streams[i], sizeof(AVStream));
670         st->codec = avcodec_alloc_context();
671         if (!st->codec) {
672             print_error(filename, AVERROR(ENOMEM));
673             ffmpeg_exit(1);
674         }
675         avcodec_copy_context(st->codec, ic->streams[i]->codec);
676         s->streams[i] = st;
677
678         codec = avcodec_find_encoder(st->codec->codec_id);
679         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
680             if (audio_stream_copy) {
681                 st->stream_copy = 1;
682             } else
683                 choose_sample_fmt(st, codec);
684         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
685             if (video_stream_copy) {
686                 st->stream_copy = 1;
687             } else
688                 choose_pixel_fmt(st, codec);
689         }
690
691         if(!st->codec->thread_count)
692             st->codec->thread_count = 1;
693         if(st->codec->thread_count>1)
694             avcodec_thread_init(st->codec, st->codec->thread_count);
695
696         if(st->codec->flags & CODEC_FLAG_BITEXACT)
697             nopts = 1;
698     }
699
700     if (!nopts)
701         s->timestamp = av_gettime();
702
703     av_close_input_file(ic);
704     return 0;
705 }
706
707 static double
708 get_sync_ipts(const AVOutputStream *ost)
709 {
710     const AVInputStream *ist = ost->sync_ist;
711     return (double)(ist->pts - start_time)/AV_TIME_BASE;
712 }
713
714 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
715     int ret;
716
717     while(bsfc){
718         AVPacket new_pkt= *pkt;
719         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
720                                           &new_pkt.data, &new_pkt.size,
721                                           pkt->data, pkt->size,
722                                           pkt->flags & AV_PKT_FLAG_KEY);
723         if(a>0){
724             av_free_packet(pkt);
725             new_pkt.destruct= av_destruct_packet;
726         } else if(a<0){
727             fprintf(stderr, "%s failed for stream %d, codec %s",
728                     bsfc->filter->name, pkt->stream_index,
729                     avctx->codec ? avctx->codec->name : "copy");
730             print_error("", a);
731             if (exit_on_error)
732                 ffmpeg_exit(1);
733         }
734         *pkt= new_pkt;
735
736         bsfc= bsfc->next;
737     }
738
739     ret= av_interleaved_write_frame(s, pkt);
740     if(ret < 0){
741         print_error("av_interleaved_write_frame()", ret);
742         ffmpeg_exit(1);
743     }
744 }
745
746 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
747
748 static void do_audio_out(AVFormatContext *s,
749                          AVOutputStream *ost,
750                          AVInputStream *ist,
751                          unsigned char *buf, int size)
752 {
753     uint8_t *buftmp;
754     int64_t audio_out_size, audio_buf_size;
755     int64_t allocated_for_size= size;
756
757     int size_out, frame_bytes, ret;
758     AVCodecContext *enc= ost->st->codec;
759     AVCodecContext *dec= ist->st->codec;
760     int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
761     int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
762     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
763
764 need_realloc:
765     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
766     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
767     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
768     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
769     audio_buf_size*= osize*enc->channels;
770
771     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
772     if(coded_bps > 8*osize)
773         audio_out_size= audio_out_size * coded_bps / (8*osize);
774     audio_out_size += FF_MIN_BUFFER_SIZE;
775
776     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
777         fprintf(stderr, "Buffer sizes too large\n");
778         ffmpeg_exit(1);
779     }
780
781     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
782     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
783     if (!audio_buf || !audio_out){
784         fprintf(stderr, "Out of memory in do_audio_out\n");
785         ffmpeg_exit(1);
786     }
787
788     if (enc->channels != dec->channels)
789         ost->audio_resample = 1;
790
791     if (ost->audio_resample && !ost->resample) {
792         if (dec->sample_fmt != SAMPLE_FMT_S16)
793             fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
794         ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
795                                                enc->sample_rate, dec->sample_rate,
796                                                enc->sample_fmt,  dec->sample_fmt,
797                                                16, 10, 0, 0.8);
798         if (!ost->resample) {
799             fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
800                     dec->channels, dec->sample_rate,
801                     enc->channels, enc->sample_rate);
802             ffmpeg_exit(1);
803         }
804     }
805
806 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
807     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
808         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
809         if (ost->reformat_ctx)
810             av_audio_convert_free(ost->reformat_ctx);
811         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
812                                                    dec->sample_fmt, 1, NULL, 0);
813         if (!ost->reformat_ctx) {
814             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
815                 avcodec_get_sample_fmt_name(dec->sample_fmt),
816                 avcodec_get_sample_fmt_name(enc->sample_fmt));
817             ffmpeg_exit(1);
818         }
819         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
820     }
821
822     if(audio_sync_method){
823         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
824                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
825         double idelta= delta*dec->sample_rate / enc->sample_rate;
826         int byte_delta= ((int)idelta)*2*dec->channels;
827
828         //FIXME resample delay
829         if(fabs(delta) > 50){
830             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
831                 if(byte_delta < 0){
832                     byte_delta= FFMAX(byte_delta, -size);
833                     size += byte_delta;
834                     buf  -= byte_delta;
835                     if(verbose > 2)
836                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
837                     if(!size)
838                         return;
839                     ist->is_start=0;
840                 }else{
841                     static uint8_t *input_tmp= NULL;
842                     input_tmp= av_realloc(input_tmp, byte_delta + size);
843
844                     if(byte_delta > allocated_for_size - size){
845                         allocated_for_size= byte_delta + (int64_t)size;
846                         goto need_realloc;
847                     }
848                     ist->is_start=0;
849
850                     memset(input_tmp, 0, byte_delta);
851                     memcpy(input_tmp + byte_delta, buf, size);
852                     buf= input_tmp;
853                     size += byte_delta;
854                     if(verbose > 2)
855                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
856                 }
857             }else if(audio_sync_method>1){
858                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
859                 av_assert0(ost->audio_resample);
860                 if(verbose > 2)
861                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
862 //                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));
863                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
864             }
865         }
866     }else
867         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
868                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
869
870     if (ost->audio_resample) {
871         buftmp = audio_buf;
872         size_out = audio_resample(ost->resample,
873                                   (short *)buftmp, (short *)buf,
874                                   size / (dec->channels * isize));
875         size_out = size_out * enc->channels * osize;
876     } else {
877         buftmp = buf;
878         size_out = size;
879     }
880
881     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
882         const void *ibuf[6]= {buftmp};
883         void *obuf[6]= {audio_buf};
884         int istride[6]= {isize};
885         int ostride[6]= {osize};
886         int len= size_out/istride[0];
887         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
888             printf("av_audio_convert() failed\n");
889             if (exit_on_error)
890                 ffmpeg_exit(1);
891             return;
892         }
893         buftmp = audio_buf;
894         size_out = len*osize;
895     }
896
897     /* now encode as many frames as possible */
898     if (enc->frame_size > 1) {
899         /* output resampled raw samples */
900         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
901             fprintf(stderr, "av_fifo_realloc2() failed\n");
902             ffmpeg_exit(1);
903         }
904         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
905
906         frame_bytes = enc->frame_size * osize * enc->channels;
907
908         while (av_fifo_size(ost->fifo) >= frame_bytes) {
909             AVPacket pkt;
910             av_init_packet(&pkt);
911
912             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
913
914             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
915
916             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
917                                        (short *)audio_buf);
918             if (ret < 0) {
919                 fprintf(stderr, "Audio encoding failed\n");
920                 ffmpeg_exit(1);
921             }
922             audio_size += ret;
923             pkt.stream_index= ost->index;
924             pkt.data= audio_out;
925             pkt.size= ret;
926             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
927                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
928             pkt.flags |= AV_PKT_FLAG_KEY;
929             write_frame(s, &pkt, enc, ost->bitstream_filters);
930
931             ost->sync_opts += enc->frame_size;
932         }
933     } else {
934         AVPacket pkt;
935         av_init_packet(&pkt);
936
937         ost->sync_opts += size_out / (osize * enc->channels);
938
939         /* output a pcm frame */
940         /* determine the size of the coded buffer */
941         size_out /= osize;
942         if (coded_bps)
943             size_out = size_out*coded_bps/8;
944
945         if(size_out > audio_out_size){
946             fprintf(stderr, "Internal error, buffer size too small\n");
947             ffmpeg_exit(1);
948         }
949
950         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
951         ret = avcodec_encode_audio(enc, audio_out, size_out,
952                                    (short *)buftmp);
953         if (ret < 0) {
954             fprintf(stderr, "Audio encoding failed\n");
955             ffmpeg_exit(1);
956         }
957         audio_size += ret;
958         pkt.stream_index= ost->index;
959         pkt.data= audio_out;
960         pkt.size= ret;
961         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
962             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
963         pkt.flags |= AV_PKT_FLAG_KEY;
964         write_frame(s, &pkt, enc, ost->bitstream_filters);
965     }
966 }
967
968 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
969 {
970     AVCodecContext *dec;
971     AVPicture *picture2;
972     AVPicture picture_tmp;
973     uint8_t *buf = 0;
974
975     dec = ist->st->codec;
976
977     /* deinterlace : must be done before any resize */
978     if (do_deinterlace) {
979         int size;
980
981         /* create temporary picture */
982         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
983         buf = av_malloc(size);
984         if (!buf)
985             return;
986
987         picture2 = &picture_tmp;
988         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
989
990         if(avpicture_deinterlace(picture2, picture,
991                                  dec->pix_fmt, dec->width, dec->height) < 0) {
992             /* if error, do not deinterlace */
993             fprintf(stderr, "Deinterlacing failed\n");
994             av_free(buf);
995             buf = NULL;
996             picture2 = picture;
997         }
998     } else {
999         picture2 = picture;
1000     }
1001
1002     if (picture != picture2)
1003         *picture = *picture2;
1004     *bufp = buf;
1005 }
1006
1007 /* we begin to correct av delay at this threshold */
1008 #define AV_DELAY_MAX 0.100
1009
1010 static void do_subtitle_out(AVFormatContext *s,
1011                             AVOutputStream *ost,
1012                             AVInputStream *ist,
1013                             AVSubtitle *sub,
1014                             int64_t pts)
1015 {
1016     static uint8_t *subtitle_out = NULL;
1017     int subtitle_out_max_size = 1024 * 1024;
1018     int subtitle_out_size, nb, i;
1019     AVCodecContext *enc;
1020     AVPacket pkt;
1021
1022     if (pts == AV_NOPTS_VALUE) {
1023         fprintf(stderr, "Subtitle packets must have a pts\n");
1024         if (exit_on_error)
1025             ffmpeg_exit(1);
1026         return;
1027     }
1028
1029     enc = ost->st->codec;
1030
1031     if (!subtitle_out) {
1032         subtitle_out = av_malloc(subtitle_out_max_size);
1033     }
1034
1035     /* Note: DVB subtitle need one packet to draw them and one other
1036        packet to clear them */
1037     /* XXX: signal it in the codec context ? */
1038     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1039         nb = 2;
1040     else
1041         nb = 1;
1042
1043     for(i = 0; i < nb; i++) {
1044         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1045         // start_display_time is required to be 0
1046         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1047         sub->end_display_time -= sub->start_display_time;
1048         sub->start_display_time = 0;
1049         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1050                                                     subtitle_out_max_size, sub);
1051         if (subtitle_out_size < 0) {
1052             fprintf(stderr, "Subtitle encoding failed\n");
1053             ffmpeg_exit(1);
1054         }
1055
1056         av_init_packet(&pkt);
1057         pkt.stream_index = ost->index;
1058         pkt.data = subtitle_out;
1059         pkt.size = subtitle_out_size;
1060         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1061         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1062             /* XXX: the pts correction is handled here. Maybe handling
1063                it in the codec would be better */
1064             if (i == 0)
1065                 pkt.pts += 90 * sub->start_display_time;
1066             else
1067                 pkt.pts += 90 * sub->end_display_time;
1068         }
1069         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1070     }
1071 }
1072
1073 static int bit_buffer_size= 1024*256;
1074 static uint8_t *bit_buffer= NULL;
1075
1076 static void do_video_out(AVFormatContext *s,
1077                          AVOutputStream *ost,
1078                          AVInputStream *ist,
1079                          AVFrame *in_picture,
1080                          int *frame_size)
1081 {
1082     int nb_frames, i, ret;
1083     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1084     AVFrame picture_crop_temp, picture_pad_temp;
1085     AVCodecContext *enc, *dec;
1086     double sync_ipts;
1087
1088     avcodec_get_frame_defaults(&picture_crop_temp);
1089     avcodec_get_frame_defaults(&picture_pad_temp);
1090
1091     enc = ost->st->codec;
1092     dec = ist->st->codec;
1093
1094     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1095
1096     /* by default, we output a single frame */
1097     nb_frames = 1;
1098
1099     *frame_size = 0;
1100
1101     if(video_sync_method){
1102         double vdelta = sync_ipts - ost->sync_opts;
1103         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1104         if (vdelta < -1.1)
1105             nb_frames = 0;
1106         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1107             if(vdelta<=-0.6){
1108                 nb_frames=0;
1109             }else if(vdelta>0.6)
1110             ost->sync_opts= lrintf(sync_ipts);
1111         }else if (vdelta > 1.1)
1112             nb_frames = lrintf(vdelta);
1113 //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);
1114         if (nb_frames == 0){
1115             ++nb_frames_drop;
1116             if (verbose>2)
1117                 fprintf(stderr, "*** drop!\n");
1118         }else if (nb_frames > 1) {
1119             nb_frames_dup += nb_frames - 1;
1120             if (verbose>2)
1121                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1122         }
1123     }else
1124         ost->sync_opts= lrintf(sync_ipts);
1125
1126     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1127     if (nb_frames <= 0)
1128         return;
1129
1130     formatted_picture = in_picture;
1131     final_picture = formatted_picture;
1132     padding_src = formatted_picture;
1133     resampling_dst = &ost->pict_tmp;
1134
1135     if (   ost->resample_height != ist->st->codec->height
1136         || ost->resample_width  != ist->st->codec->width
1137         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1138
1139         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));
1140         if(!ost->video_resample)
1141             ffmpeg_exit(1);
1142     }
1143
1144 #if !CONFIG_AVFILTER
1145     if (ost->video_resample) {
1146         padding_src = NULL;
1147         final_picture = &ost->pict_tmp;
1148         if(  ost->resample_height != ist->st->codec->height
1149           || ost->resample_width  != ist->st->codec->width
1150           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1151
1152             /* initialize a new scaler context */
1153             sws_freeContext(ost->img_resample_ctx);
1154             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1155             ost->img_resample_ctx = sws_getContext(
1156                 ist->st->codec->width,
1157                 ist->st->codec->height,
1158                 ist->st->codec->pix_fmt,
1159                 ost->st->codec->width,
1160                 ost->st->codec->height,
1161                 ost->st->codec->pix_fmt,
1162                 sws_flags, NULL, NULL, NULL);
1163             if (ost->img_resample_ctx == NULL) {
1164                 fprintf(stderr, "Cannot get resampling context\n");
1165                 ffmpeg_exit(1);
1166             }
1167         }
1168         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1169               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1170     }
1171 #endif
1172
1173     /* duplicates frame if needed */
1174     for(i=0;i<nb_frames;i++) {
1175         AVPacket pkt;
1176         av_init_packet(&pkt);
1177         pkt.stream_index= ost->index;
1178
1179         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1180             /* raw pictures are written as AVPicture structure to
1181                avoid any copies. We support temorarily the older
1182                method. */
1183             AVFrame* old_frame = enc->coded_frame;
1184             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1185             pkt.data= (uint8_t *)final_picture;
1186             pkt.size=  sizeof(AVPicture);
1187             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1188             pkt.flags |= AV_PKT_FLAG_KEY;
1189
1190             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1191             enc->coded_frame = old_frame;
1192         } else {
1193             AVFrame big_picture;
1194
1195             big_picture= *final_picture;
1196             /* better than nothing: use input picture interlaced
1197                settings */
1198             big_picture.interlaced_frame = in_picture->interlaced_frame;
1199             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1200                 if(top_field_first == -1)
1201                     big_picture.top_field_first = in_picture->top_field_first;
1202                 else
1203                     big_picture.top_field_first = top_field_first;
1204             }
1205
1206             /* handles sameq here. This is not correct because it may
1207                not be a global option */
1208             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1209             if(!me_threshold)
1210                 big_picture.pict_type = 0;
1211 //            big_picture.pts = AV_NOPTS_VALUE;
1212             big_picture.pts= ost->sync_opts;
1213 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1214 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1215             ret = avcodec_encode_video(enc,
1216                                        bit_buffer, bit_buffer_size,
1217                                        &big_picture);
1218             if (ret < 0) {
1219                 fprintf(stderr, "Video encoding failed\n");
1220                 ffmpeg_exit(1);
1221             }
1222
1223             if(ret>0){
1224                 pkt.data= bit_buffer;
1225                 pkt.size= ret;
1226                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1227                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1228 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1229    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1230    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1231
1232                 if(enc->coded_frame->key_frame)
1233                     pkt.flags |= AV_PKT_FLAG_KEY;
1234                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1235                 *frame_size = ret;
1236                 video_size += ret;
1237                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1238                 //        enc->frame_number-1, ret, enc->pict_type);
1239                 /* if two pass, output log */
1240                 if (ost->logfile && enc->stats_out) {
1241                     fprintf(ost->logfile, "%s", enc->stats_out);
1242                 }
1243             }
1244         }
1245         ost->sync_opts++;
1246         ost->frame_number++;
1247     }
1248 }
1249
1250 static double psnr(double d){
1251     return -10.0*log(d)/log(10.0);
1252 }
1253
1254 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1255                            int frame_size)
1256 {
1257     AVCodecContext *enc;
1258     int frame_number;
1259     double ti1, bitrate, avg_bitrate;
1260
1261     /* this is executed just the first time do_video_stats is called */
1262     if (!vstats_file) {
1263         vstats_file = fopen(vstats_filename, "w");
1264         if (!vstats_file) {
1265             perror("fopen");
1266             ffmpeg_exit(1);
1267         }
1268     }
1269
1270     enc = ost->st->codec;
1271     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1272         frame_number = ost->frame_number;
1273         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1274         if (enc->flags&CODEC_FLAG_PSNR)
1275             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1276
1277         fprintf(vstats_file,"f_size= %6d ", frame_size);
1278         /* compute pts value */
1279         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1280         if (ti1 < 0.01)
1281             ti1 = 0.01;
1282
1283         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1284         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1285         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1286             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1287         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1288     }
1289 }
1290
1291 static void print_report(AVFormatContext **output_files,
1292                          AVOutputStream **ost_table, int nb_ostreams,
1293                          int is_last_report)
1294 {
1295     char buf[1024];
1296     AVOutputStream *ost;
1297     AVFormatContext *oc;
1298     int64_t total_size;
1299     AVCodecContext *enc;
1300     int frame_number, vid, i;
1301     double bitrate, ti1, pts;
1302     static int64_t last_time = -1;
1303     static int qp_histogram[52];
1304
1305     if (!is_last_report) {
1306         int64_t cur_time;
1307         /* display the report every 0.5 seconds */
1308         cur_time = av_gettime();
1309         if (last_time == -1) {
1310             last_time = cur_time;
1311             return;
1312         }
1313         if ((cur_time - last_time) < 500000)
1314             return;
1315         last_time = cur_time;
1316     }
1317
1318
1319     oc = output_files[0];
1320
1321     total_size = url_fsize(oc->pb);
1322     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1323         total_size= url_ftell(oc->pb);
1324
1325     buf[0] = '\0';
1326     ti1 = 1e10;
1327     vid = 0;
1328     for(i=0;i<nb_ostreams;i++) {
1329         ost = ost_table[i];
1330         enc = ost->st->codec;
1331         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1332             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1333                      !ost->st->stream_copy ?
1334                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1335         }
1336         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1337             float t = (av_gettime()-timer_start) / 1000000.0;
1338
1339             frame_number = ost->frame_number;
1340             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1341                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1342                      !ost->st->stream_copy ?
1343                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1344             if(is_last_report)
1345                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1346             if(qp_hist){
1347                 int j;
1348                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1349                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1350                     qp_histogram[qp]++;
1351                 for(j=0; j<32; j++)
1352                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1353             }
1354             if (enc->flags&CODEC_FLAG_PSNR){
1355                 int j;
1356                 double error, error_sum=0;
1357                 double scale, scale_sum=0;
1358                 char type[3]= {'Y','U','V'};
1359                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1360                 for(j=0; j<3; j++){
1361                     if(is_last_report){
1362                         error= enc->error[j];
1363                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1364                     }else{
1365                         error= enc->coded_frame->error[j];
1366                         scale= enc->width*enc->height*255.0*255.0;
1367                     }
1368                     if(j) scale/=4;
1369                     error_sum += error;
1370                     scale_sum += scale;
1371                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1372                 }
1373                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1374             }
1375             vid = 1;
1376         }
1377         /* compute min output value */
1378         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1379         if ((pts < ti1) && (pts > 0))
1380             ti1 = pts;
1381     }
1382     if (ti1 < 0.01)
1383         ti1 = 0.01;
1384
1385     if (verbose || is_last_report) {
1386         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1387
1388         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1389             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1390             (double)total_size / 1024, ti1, bitrate);
1391
1392         if (nb_frames_dup || nb_frames_drop)
1393           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1394                   nb_frames_dup, nb_frames_drop);
1395
1396         if (verbose >= 0)
1397             fprintf(stderr, "%s    \r", buf);
1398
1399         fflush(stderr);
1400     }
1401
1402     if (is_last_report && verbose >= 0){
1403         int64_t raw= audio_size + video_size + extra_size;
1404         fprintf(stderr, "\n");
1405         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1406                 video_size/1024.0,
1407                 audio_size/1024.0,
1408                 extra_size/1024.0,
1409                 100.0*(total_size - raw)/raw
1410         );
1411     }
1412 }
1413
1414 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1415 static int output_packet(AVInputStream *ist, int ist_index,
1416                          AVOutputStream **ost_table, int nb_ostreams,
1417                          const AVPacket *pkt)
1418 {
1419     AVFormatContext *os;
1420     AVOutputStream *ost;
1421     int ret, i;
1422     int got_picture;
1423     AVFrame picture;
1424     void *buffer_to_free;
1425     static unsigned int samples_size= 0;
1426     AVSubtitle subtitle, *subtitle_to_free;
1427     int64_t pkt_pts = AV_NOPTS_VALUE;
1428 #if CONFIG_AVFILTER
1429     int frame_available;
1430 #endif
1431
1432     AVPacket avpkt;
1433     int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1434
1435     if(ist->next_pts == AV_NOPTS_VALUE)
1436         ist->next_pts= ist->pts;
1437
1438     if (pkt == NULL) {
1439         /* EOF handling */
1440         av_init_packet(&avpkt);
1441         avpkt.data = NULL;
1442         avpkt.size = 0;
1443         goto handle_eof;
1444     } else {
1445         avpkt = *pkt;
1446     }
1447
1448     if(pkt->dts != AV_NOPTS_VALUE)
1449         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1450     if(pkt->pts != AV_NOPTS_VALUE)
1451         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1452
1453     //while we have more to decode or while the decoder did output something on EOF
1454     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1455         uint8_t *data_buf, *decoded_data_buf;
1456         int data_size, decoded_data_size;
1457     handle_eof:
1458         ist->pts= ist->next_pts;
1459
1460         if(avpkt.size && avpkt.size != pkt->size &&
1461            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1462             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1463             ist->showed_multi_packet_warning=1;
1464         }
1465
1466         /* decode the packet if needed */
1467         decoded_data_buf = NULL; /* fail safe */
1468         decoded_data_size= 0;
1469         data_buf  = avpkt.data;
1470         data_size = avpkt.size;
1471         subtitle_to_free = NULL;
1472         if (ist->decoding_needed) {
1473             switch(ist->st->codec->codec_type) {
1474             case AVMEDIA_TYPE_AUDIO:{
1475                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1476                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1477                     av_free(samples);
1478                     samples= av_malloc(samples_size);
1479                 }
1480                 decoded_data_size= samples_size;
1481                     /* XXX: could avoid copy if PCM 16 bits with same
1482                        endianness as CPU */
1483                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1484                                             &avpkt);
1485                 if (ret < 0)
1486                     goto fail_decode;
1487                 avpkt.data += ret;
1488                 avpkt.size -= ret;
1489                 data_size   = ret;
1490                 /* Some bug in mpeg audio decoder gives */
1491                 /* decoded_data_size < 0, it seems they are overflows */
1492                 if (decoded_data_size <= 0) {
1493                     /* no audio frame */
1494                     continue;
1495                 }
1496                 decoded_data_buf = (uint8_t *)samples;
1497                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1498                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1499                 break;}
1500             case AVMEDIA_TYPE_VIDEO:
1501                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1502                     /* XXX: allocate picture correctly */
1503                     avcodec_get_frame_defaults(&picture);
1504                     ist->st->codec->reordered_opaque = pkt_pts;
1505                     pkt_pts = AV_NOPTS_VALUE;
1506
1507                     ret = avcodec_decode_video2(ist->st->codec,
1508                                                 &picture, &got_picture, &avpkt);
1509                     ist->st->quality= picture.quality;
1510                     if (ret < 0)
1511                         goto fail_decode;
1512                     if (!got_picture) {
1513                         /* no picture yet */
1514                         goto discard_packet;
1515                     }
1516                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1517                     if (ist->st->codec->time_base.num != 0) {
1518                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1519                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1520                                           ist->st->codec->time_base.num * ticks) /
1521                             ist->st->codec->time_base.den;
1522                     }
1523                     avpkt.size = 0;
1524                     break;
1525             case AVMEDIA_TYPE_SUBTITLE:
1526                 ret = avcodec_decode_subtitle2(ist->st->codec,
1527                                                &subtitle, &got_picture, &avpkt);
1528                 if (ret < 0)
1529                     goto fail_decode;
1530                 if (!got_picture) {
1531                     goto discard_packet;
1532                 }
1533                 subtitle_to_free = &subtitle;
1534                 avpkt.size = 0;
1535                 break;
1536             default:
1537                 goto fail_decode;
1538             }
1539         } else {
1540             switch(ist->st->codec->codec_type) {
1541             case AVMEDIA_TYPE_AUDIO:
1542                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1543                     ist->st->codec->sample_rate;
1544                 break;
1545             case AVMEDIA_TYPE_VIDEO:
1546                 if (ist->st->codec->time_base.num != 0) {
1547                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1548                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1549                                       ist->st->codec->time_base.num * ticks) /
1550                         ist->st->codec->time_base.den;
1551                 }
1552                 break;
1553             }
1554             ret = avpkt.size;
1555             avpkt.size = 0;
1556         }
1557
1558         buffer_to_free = NULL;
1559         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1560             pre_process_video_frame(ist, (AVPicture *)&picture,
1561                                     &buffer_to_free);
1562         }
1563
1564 #if CONFIG_AVFILTER
1565         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1566             // add it to be filtered
1567             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1568                                      ist->pts,
1569                                      ist->st->codec->sample_aspect_ratio);
1570         }
1571 #endif
1572
1573         // preprocess audio (volume)
1574         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1575             if (audio_volume != 256) {
1576                 short *volp;
1577                 volp = samples;
1578                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1579                     int v = ((*volp) * audio_volume + 128) >> 8;
1580                     if (v < -32768) v = -32768;
1581                     if (v >  32767) v = 32767;
1582                     *volp++ = v;
1583                 }
1584             }
1585         }
1586
1587         /* frame rate emulation */
1588         if (rate_emu) {
1589             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1590             int64_t now = av_gettime() - ist->start;
1591             if (pts > now)
1592                 usleep(pts - now);
1593         }
1594 #if CONFIG_AVFILTER
1595         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1596             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1597 #endif
1598         /* if output time reached then transcode raw format,
1599            encode packets and output them */
1600         if (start_time == 0 || ist->pts >= start_time)
1601 #if CONFIG_AVFILTER
1602         while (frame_available) {
1603             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1604                 get_filtered_video_pic(ist->output_video_filter, &ist->picref, &picture, &ist->pts);
1605 #endif
1606             for(i=0;i<nb_ostreams;i++) {
1607                 int frame_size;
1608
1609                 ost = ost_table[i];
1610                 if (ost->source_index == ist_index) {
1611                     os = output_files[ost->file_index];
1612
1613                     /* set the input output pts pairs */
1614                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1615
1616                     if (ost->encoding_needed) {
1617                         av_assert0(ist->decoding_needed);
1618                         switch(ost->st->codec->codec_type) {
1619                         case AVMEDIA_TYPE_AUDIO:
1620                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1621                             break;
1622                         case AVMEDIA_TYPE_VIDEO:
1623 #if CONFIG_AVFILTER
1624                             if (ist->picref->video)
1625                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1626 #endif
1627                             do_video_out(os, ost, ist, &picture, &frame_size);
1628                             if (vstats_filename && frame_size)
1629                                 do_video_stats(os, ost, frame_size);
1630                             break;
1631                         case AVMEDIA_TYPE_SUBTITLE:
1632                             do_subtitle_out(os, ost, ist, &subtitle,
1633                                             pkt->pts);
1634                             break;
1635                         default:
1636                             abort();
1637                         }
1638                     } else {
1639                         AVFrame avframe; //FIXME/XXX remove this
1640                         AVPacket opkt;
1641                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1642
1643                         av_init_packet(&opkt);
1644
1645                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1646                             continue;
1647
1648                         /* no reencoding needed : output the packet directly */
1649                         /* force the input stream PTS */
1650
1651                         avcodec_get_frame_defaults(&avframe);
1652                         ost->st->codec->coded_frame= &avframe;
1653                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1654
1655                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1656                             audio_size += data_size;
1657                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1658                             video_size += data_size;
1659                             ost->sync_opts++;
1660                         }
1661
1662                         opkt.stream_index= ost->index;
1663                         if(pkt->pts != AV_NOPTS_VALUE)
1664                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1665                         else
1666                             opkt.pts= AV_NOPTS_VALUE;
1667
1668                         if (pkt->dts == AV_NOPTS_VALUE)
1669                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1670                         else
1671                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1672                         opkt.dts -= ost_tb_start_time;
1673
1674                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1675                         opkt.flags= pkt->flags;
1676
1677                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1678                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1679                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1680                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1681                            ) {
1682                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1683                                 opkt.destruct= av_destruct_packet;
1684                         } else {
1685                             opkt.data = data_buf;
1686                             opkt.size = data_size;
1687                         }
1688
1689                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1690                         ost->st->codec->frame_number++;
1691                         ost->frame_number++;
1692                         av_free_packet(&opkt);
1693                     }
1694                 }
1695             }
1696
1697 #if CONFIG_AVFILTER
1698             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1699                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1700             if(ist->picref)
1701                 avfilter_unref_buffer(ist->picref);
1702         }
1703 #endif
1704         av_free(buffer_to_free);
1705         /* XXX: allocate the subtitles in the codec ? */
1706         if (subtitle_to_free) {
1707             if (subtitle_to_free->rects != NULL) {
1708                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1709                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1710                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1711                     av_freep(&subtitle_to_free->rects[i]);
1712                 }
1713                 av_freep(&subtitle_to_free->rects);
1714             }
1715             subtitle_to_free->num_rects = 0;
1716             subtitle_to_free = NULL;
1717         }
1718     }
1719  discard_packet:
1720     if (pkt == NULL) {
1721         /* EOF handling */
1722
1723         for(i=0;i<nb_ostreams;i++) {
1724             ost = ost_table[i];
1725             if (ost->source_index == ist_index) {
1726                 AVCodecContext *enc= ost->st->codec;
1727                 os = output_files[ost->file_index];
1728
1729                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1730                     continue;
1731                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1732                     continue;
1733
1734                 if (ost->encoding_needed) {
1735                     for(;;) {
1736                         AVPacket pkt;
1737                         int fifo_bytes;
1738                         av_init_packet(&pkt);
1739                         pkt.stream_index= ost->index;
1740
1741                         switch(ost->st->codec->codec_type) {
1742                         case AVMEDIA_TYPE_AUDIO:
1743                             fifo_bytes = av_fifo_size(ost->fifo);
1744                             ret = 0;
1745                             /* encode any samples remaining in fifo */
1746                             if (fifo_bytes > 0) {
1747                                 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1748                                 int fs_tmp = enc->frame_size;
1749
1750                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1751                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1752                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1753                                 } else { /* pad */
1754                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1755                                     if (allocated_audio_buf_size < frame_bytes)
1756                                         ffmpeg_exit(1);
1757                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1758                                 }
1759
1760                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1761                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1762                                                           ost->st->time_base.num, enc->sample_rate);
1763                                 enc->frame_size = fs_tmp;
1764                             }
1765                             if(ret <= 0) {
1766                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1767                             }
1768                             if (ret < 0) {
1769                                 fprintf(stderr, "Audio encoding failed\n");
1770                                 ffmpeg_exit(1);
1771                             }
1772                             audio_size += ret;
1773                             pkt.flags |= AV_PKT_FLAG_KEY;
1774                             break;
1775                         case AVMEDIA_TYPE_VIDEO:
1776                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1777                             if (ret < 0) {
1778                                 fprintf(stderr, "Video encoding failed\n");
1779                                 ffmpeg_exit(1);
1780                             }
1781                             video_size += ret;
1782                             if(enc->coded_frame && enc->coded_frame->key_frame)
1783                                 pkt.flags |= AV_PKT_FLAG_KEY;
1784                             if (ost->logfile && enc->stats_out) {
1785                                 fprintf(ost->logfile, "%s", enc->stats_out);
1786                             }
1787                             break;
1788                         default:
1789                             ret=-1;
1790                         }
1791
1792                         if(ret<=0)
1793                             break;
1794                         pkt.data= bit_buffer;
1795                         pkt.size= ret;
1796                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1797                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1798                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1799                     }
1800                 }
1801             }
1802         }
1803     }
1804
1805     return 0;
1806  fail_decode:
1807     return -1;
1808 }
1809
1810 static void print_sdp(AVFormatContext **avc, int n)
1811 {
1812     char sdp[2048];
1813
1814     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1815     printf("SDP:\n%s\n", sdp);
1816     fflush(stdout);
1817 }
1818
1819 static int copy_chapters(int infile, int outfile)
1820 {
1821     AVFormatContext *is = input_files[infile];
1822     AVFormatContext *os = output_files[outfile];
1823     int i;
1824
1825     for (i = 0; i < is->nb_chapters; i++) {
1826         AVChapter *in_ch = is->chapters[i], *out_ch;
1827         AVMetadataTag *t = NULL;
1828         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1829                                       AV_TIME_BASE_Q, in_ch->time_base);
1830         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1831                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1832
1833
1834         if (in_ch->end < ts_off)
1835             continue;
1836         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1837             break;
1838
1839         out_ch = av_mallocz(sizeof(AVChapter));
1840         if (!out_ch)
1841             return AVERROR(ENOMEM);
1842
1843         out_ch->id        = in_ch->id;
1844         out_ch->time_base = in_ch->time_base;
1845         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1846         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1847
1848         while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1849             av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1850
1851         os->nb_chapters++;
1852         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1853         if (!os->chapters)
1854             return AVERROR(ENOMEM);
1855         os->chapters[os->nb_chapters - 1] = out_ch;
1856     }
1857     return 0;
1858 }
1859
1860 /*
1861  * The following code is the main loop of the file converter
1862  */
1863 static int transcode(AVFormatContext **output_files,
1864                      int nb_output_files,
1865                      AVFormatContext **input_files,
1866                      int nb_input_files,
1867                      AVStreamMap *stream_maps, int nb_stream_maps)
1868 {
1869     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1870     AVFormatContext *is, *os;
1871     AVCodecContext *codec, *icodec;
1872     AVOutputStream *ost, **ost_table = NULL;
1873     AVInputStream *ist, **ist_table = NULL;
1874     AVInputFile *file_table;
1875     char error[1024];
1876     int key;
1877     int want_sdp = 1;
1878     uint8_t no_packet[MAX_FILES]={0};
1879     int no_packet_count=0;
1880
1881     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1882     if (!file_table)
1883         goto fail;
1884
1885     /* input stream init */
1886     j = 0;
1887     for(i=0;i<nb_input_files;i++) {
1888         is = input_files[i];
1889         file_table[i].ist_index = j;
1890         file_table[i].nb_streams = is->nb_streams;
1891         j += is->nb_streams;
1892     }
1893     nb_istreams = j;
1894
1895     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1896     if (!ist_table)
1897         goto fail;
1898
1899     for(i=0;i<nb_istreams;i++) {
1900         ist = av_mallocz(sizeof(AVInputStream));
1901         if (!ist)
1902             goto fail;
1903         ist_table[i] = ist;
1904     }
1905     j = 0;
1906     for(i=0;i<nb_input_files;i++) {
1907         is = input_files[i];
1908         for(k=0;k<is->nb_streams;k++) {
1909             ist = ist_table[j++];
1910             ist->st = is->streams[k];
1911             ist->file_index = i;
1912             ist->index = k;
1913             ist->discard = 1; /* the stream is discarded by default
1914                                  (changed later) */
1915
1916             if (rate_emu) {
1917                 ist->start = av_gettime();
1918             }
1919         }
1920     }
1921
1922     /* output stream init */
1923     nb_ostreams = 0;
1924     for(i=0;i<nb_output_files;i++) {
1925         os = output_files[i];
1926         if (!os->nb_streams) {
1927             dump_format(output_files[i], i, output_files[i]->filename, 1);
1928             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1929             ret = AVERROR(EINVAL);
1930             goto fail;
1931         }
1932         nb_ostreams += os->nb_streams;
1933     }
1934     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1935         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1936         ret = AVERROR(EINVAL);
1937         goto fail;
1938     }
1939
1940     /* Sanity check the mapping args -- do the input files & streams exist? */
1941     for(i=0;i<nb_stream_maps;i++) {
1942         int fi = stream_maps[i].file_index;
1943         int si = stream_maps[i].stream_index;
1944
1945         if (fi < 0 || fi > nb_input_files - 1 ||
1946             si < 0 || si > file_table[fi].nb_streams - 1) {
1947             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1948             ret = AVERROR(EINVAL);
1949             goto fail;
1950         }
1951         fi = stream_maps[i].sync_file_index;
1952         si = stream_maps[i].sync_stream_index;
1953         if (fi < 0 || fi > nb_input_files - 1 ||
1954             si < 0 || si > file_table[fi].nb_streams - 1) {
1955             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1956             ret = AVERROR(EINVAL);
1957             goto fail;
1958         }
1959     }
1960
1961     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1962     if (!ost_table)
1963         goto fail;
1964     n = 0;
1965     for(k=0;k<nb_output_files;k++) {
1966         os = output_files[k];
1967         for(i=0;i<os->nb_streams;i++,n++) {
1968             int found;
1969             ost = ost_table[n] = output_streams_for_file[k][i];
1970             ost->st = os->streams[i];
1971             if (nb_stream_maps > 0) {
1972                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1973                     stream_maps[n].stream_index;
1974
1975                 /* Sanity check that the stream types match */
1976                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1977                     int i= ost->file_index;
1978                     dump_format(output_files[i], i, output_files[i]->filename, 1);
1979                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1980                         stream_maps[n].file_index, stream_maps[n].stream_index,
1981                         ost->file_index, ost->index);
1982                     ffmpeg_exit(1);
1983                 }
1984
1985             } else {
1986                 int best_nb_frames=-1;
1987                 /* get corresponding input stream index : we select the first one with the right type */
1988                 found = 0;
1989                 for(j=0;j<nb_istreams;j++) {
1990                     int skip=0;
1991                     ist = ist_table[j];
1992                     if(opt_programid){
1993                         int pi,si;
1994                         AVFormatContext *f= input_files[ ist->file_index ];
1995                         skip=1;
1996                         for(pi=0; pi<f->nb_programs; pi++){
1997                             AVProgram *p= f->programs[pi];
1998                             if(p->id == opt_programid)
1999                                 for(si=0; si<p->nb_stream_indexes; si++){
2000                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2001                                         skip=0;
2002                                 }
2003                         }
2004                     }
2005                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2006                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2007                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2008                             best_nb_frames= ist->st->codec_info_nb_frames;
2009                             ost->source_index = j;
2010                             found = 1;
2011                         }
2012                     }
2013                 }
2014
2015                 if (!found) {
2016                     if(! opt_programid) {
2017                         /* try again and reuse existing stream */
2018                         for(j=0;j<nb_istreams;j++) {
2019                             ist = ist_table[j];
2020                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2021                                 && ist->st->discard != AVDISCARD_ALL) {
2022                                 ost->source_index = j;
2023                                 found = 1;
2024                             }
2025                         }
2026                     }
2027                     if (!found) {
2028                         int i= ost->file_index;
2029                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2030                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2031                                 ost->file_index, ost->index);
2032                         ffmpeg_exit(1);
2033                     }
2034                 }
2035             }
2036             ist = ist_table[ost->source_index];
2037             ist->discard = 0;
2038             ost->sync_ist = (nb_stream_maps > 0) ?
2039                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2040                          stream_maps[n].sync_stream_index] : ist;
2041         }
2042     }
2043
2044     /* for each output stream, we compute the right encoding parameters */
2045     for(i=0;i<nb_ostreams;i++) {
2046         AVMetadataTag *t = NULL;
2047         ost = ost_table[i];
2048         os = output_files[ost->file_index];
2049         ist = ist_table[ost->source_index];
2050
2051         codec = ost->st->codec;
2052         icodec = ist->st->codec;
2053
2054         while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2055             av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2056         }
2057
2058         ost->st->disposition = ist->st->disposition;
2059         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2060         codec->chroma_sample_location = icodec->chroma_sample_location;
2061
2062         if (ost->st->stream_copy) {
2063             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2064
2065             if (extra_size > INT_MAX)
2066                 goto fail;
2067
2068             /* if stream_copy is selected, no need to decode or encode */
2069             codec->codec_id = icodec->codec_id;
2070             codec->codec_type = icodec->codec_type;
2071
2072             if(!codec->codec_tag){
2073                 if(   !os->oformat->codec_tag
2074                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2075                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2076                     codec->codec_tag = icodec->codec_tag;
2077             }
2078
2079             codec->bit_rate = icodec->bit_rate;
2080             codec->rc_max_rate    = icodec->rc_max_rate;
2081             codec->rc_buffer_size = icodec->rc_buffer_size;
2082             codec->extradata= av_mallocz(extra_size);
2083             if (!codec->extradata)
2084                 goto fail;
2085             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2086             codec->extradata_size= icodec->extradata_size;
2087             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){
2088                 codec->time_base = icodec->time_base;
2089                 codec->time_base.num *= icodec->ticks_per_frame;
2090                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2091                           codec->time_base.num, codec->time_base.den, INT_MAX);
2092             }else
2093                 codec->time_base = ist->st->time_base;
2094             switch(codec->codec_type) {
2095             case AVMEDIA_TYPE_AUDIO:
2096                 if(audio_volume != 256) {
2097                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2098                     ffmpeg_exit(1);
2099                 }
2100                 codec->channel_layout = icodec->channel_layout;
2101                 codec->sample_rate = icodec->sample_rate;
2102                 codec->channels = icodec->channels;
2103                 codec->frame_size = icodec->frame_size;
2104                 codec->block_align= icodec->block_align;
2105                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2106                     codec->block_align= 0;
2107                 if(codec->codec_id == CODEC_ID_AC3)
2108                     codec->block_align= 0;
2109                 break;
2110             case AVMEDIA_TYPE_VIDEO:
2111                 codec->pix_fmt = icodec->pix_fmt;
2112                 codec->width = icodec->width;
2113                 codec->height = icodec->height;
2114                 codec->has_b_frames = icodec->has_b_frames;
2115                 break;
2116             case AVMEDIA_TYPE_SUBTITLE:
2117                 codec->width = icodec->width;
2118                 codec->height = icodec->height;
2119                 break;
2120             default:
2121                 abort();
2122             }
2123         } else {
2124             switch(codec->codec_type) {
2125             case AVMEDIA_TYPE_AUDIO:
2126                 ost->fifo= av_fifo_alloc(1024);
2127                 if(!ost->fifo)
2128                     goto fail;
2129                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2130                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2131                 icodec->request_channels = codec->channels;
2132                 ist->decoding_needed = 1;
2133                 ost->encoding_needed = 1;
2134                 break;
2135             case AVMEDIA_TYPE_VIDEO:
2136                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2137                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2138                     ffmpeg_exit(1);
2139                 }
2140                 ost->video_resample = (codec->width != icodec->width   ||
2141                                        codec->height != icodec->height ||
2142                         (codec->pix_fmt != icodec->pix_fmt));
2143                 if (ost->video_resample) {
2144                     avcodec_get_frame_defaults(&ost->pict_tmp);
2145                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2146                                          codec->width, codec->height)) {
2147                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2148                         ffmpeg_exit(1);
2149                     }
2150                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2151                     ost->img_resample_ctx = sws_getContext(
2152                         icodec->width,
2153                         icodec->height,
2154                             icodec->pix_fmt,
2155                             codec->width,
2156                             codec->height,
2157                             codec->pix_fmt,
2158                             sws_flags, NULL, NULL, NULL);
2159                     if (ost->img_resample_ctx == NULL) {
2160                         fprintf(stderr, "Cannot get resampling context\n");
2161                         ffmpeg_exit(1);
2162                     }
2163
2164 #if !CONFIG_AVFILTER
2165                     ost->original_height = icodec->height;
2166                     ost->original_width  = icodec->width;
2167 #endif
2168                     codec->bits_per_raw_sample= 0;
2169                 }
2170                 ost->resample_height = icodec->height;
2171                 ost->resample_width  = icodec->width;
2172                 ost->resample_pix_fmt= icodec->pix_fmt;
2173                 ost->encoding_needed = 1;
2174                 ist->decoding_needed = 1;
2175
2176 #if CONFIG_AVFILTER
2177                 if (configure_filters(ist, ost)) {
2178                     fprintf(stderr, "Error opening filters!\n");
2179                     exit(1);
2180                 }
2181 #endif
2182                 break;
2183             case AVMEDIA_TYPE_SUBTITLE:
2184                 ost->encoding_needed = 1;
2185                 ist->decoding_needed = 1;
2186                 break;
2187             default:
2188                 abort();
2189                 break;
2190             }
2191             /* two pass mode */
2192             if (ost->encoding_needed &&
2193                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2194                 char logfilename[1024];
2195                 FILE *f;
2196
2197                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2198                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2199                          i);
2200                 if (codec->flags & CODEC_FLAG_PASS1) {
2201                     f = fopen(logfilename, "wb");
2202                     if (!f) {
2203                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2204                         ffmpeg_exit(1);
2205                     }
2206                     ost->logfile = f;
2207                 } else {
2208                     char  *logbuffer;
2209                     size_t logbuffer_size;
2210                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2211                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2212                         ffmpeg_exit(1);
2213                     }
2214                     codec->stats_in = logbuffer;
2215                 }
2216             }
2217         }
2218         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2219             int size= codec->width * codec->height;
2220             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2221         }
2222     }
2223
2224     if (!bit_buffer)
2225         bit_buffer = av_malloc(bit_buffer_size);
2226     if (!bit_buffer) {
2227         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2228                 bit_buffer_size);
2229         ret = AVERROR(ENOMEM);
2230         goto fail;
2231     }
2232
2233     /* open each encoder */
2234     for(i=0;i<nb_ostreams;i++) {
2235         ost = ost_table[i];
2236         if (ost->encoding_needed) {
2237             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2238             if (!codec)
2239                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2240             if (!codec) {
2241                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2242                          ost->st->codec->codec_id, ost->file_index, ost->index);
2243                 ret = AVERROR(EINVAL);
2244                 goto dump_format;
2245             }
2246             if (avcodec_open(ost->st->codec, codec) < 0) {
2247                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2248                         ost->file_index, ost->index);
2249                 ret = AVERROR(EINVAL);
2250                 goto dump_format;
2251             }
2252             extra_size += ost->st->codec->extradata_size;
2253         }
2254     }
2255
2256     /* open each decoder */
2257     for(i=0;i<nb_istreams;i++) {
2258         ist = ist_table[i];
2259         if (ist->decoding_needed) {
2260             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2261             if (!codec)
2262                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2263             if (!codec) {
2264                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2265                         ist->st->codec->codec_id, ist->file_index, ist->index);
2266                 ret = AVERROR(EINVAL);
2267                 goto dump_format;
2268             }
2269             if (avcodec_open(ist->st->codec, codec) < 0) {
2270                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2271                         ist->file_index, ist->index);
2272                 ret = AVERROR(EINVAL);
2273                 goto dump_format;
2274             }
2275             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2276             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2277         }
2278     }
2279
2280     /* init pts */
2281     for(i=0;i<nb_istreams;i++) {
2282         AVStream *st;
2283         ist = ist_table[i];
2284         st= ist->st;
2285         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2286         ist->next_pts = AV_NOPTS_VALUE;
2287         init_pts_correction(&ist->pts_ctx);
2288         ist->is_start = 1;
2289     }
2290
2291     /* set meta data information from input file if required */
2292     for (i=0;i<nb_meta_data_maps;i++) {
2293         AVFormatContext *out_file;
2294         AVFormatContext *in_file;
2295         AVMetadataTag *mtag;
2296
2297         int out_file_index = meta_data_maps[i].out_file;
2298         int in_file_index = meta_data_maps[i].in_file;
2299         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2300             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2301                      out_file_index, out_file_index, in_file_index);
2302             ret = AVERROR(EINVAL);
2303             goto dump_format;
2304         }
2305         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2306             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2307                      in_file_index, out_file_index, in_file_index);
2308             ret = AVERROR(EINVAL);
2309             goto dump_format;
2310         }
2311
2312         out_file = output_files[out_file_index];
2313         in_file = input_files[in_file_index];
2314
2315
2316         mtag=NULL;
2317         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2318             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2319     }
2320
2321     /* copy chapters from the first input file that has them*/
2322     for (i = 0; i < nb_input_files; i++) {
2323         if (!input_files[i]->nb_chapters)
2324             continue;
2325
2326         for (j = 0; j < nb_output_files; j++)
2327             if ((ret = copy_chapters(i, j)) < 0)
2328                 goto dump_format;
2329     }
2330
2331     /* open files and write file headers */
2332     for(i=0;i<nb_output_files;i++) {
2333         os = output_files[i];
2334         if (av_write_header(os) < 0) {
2335             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2336             ret = AVERROR(EINVAL);
2337             goto dump_format;
2338         }
2339         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2340             want_sdp = 0;
2341         }
2342     }
2343
2344  dump_format:
2345     /* dump the file output parameters - cannot be done before in case
2346        of stream copy */
2347     for(i=0;i<nb_output_files;i++) {
2348         dump_format(output_files[i], i, output_files[i]->filename, 1);
2349     }
2350
2351     /* dump the stream mapping */
2352     if (verbose >= 0) {
2353         fprintf(stderr, "Stream mapping:\n");
2354         for(i=0;i<nb_ostreams;i++) {
2355             ost = ost_table[i];
2356             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2357                     ist_table[ost->source_index]->file_index,
2358                     ist_table[ost->source_index]->index,
2359                     ost->file_index,
2360                     ost->index);
2361             if (ost->sync_ist != ist_table[ost->source_index])
2362                 fprintf(stderr, " [sync #%d.%d]",
2363                         ost->sync_ist->file_index,
2364                         ost->sync_ist->index);
2365             fprintf(stderr, "\n");
2366         }
2367     }
2368
2369     if (ret) {
2370         fprintf(stderr, "%s\n", error);
2371         goto fail;
2372     }
2373
2374     if (want_sdp) {
2375         print_sdp(output_files, nb_output_files);
2376     }
2377
2378     if (!using_stdin && verbose >= 0) {
2379         fprintf(stderr, "Press [q] to stop encoding\n");
2380         url_set_interrupt_cb(decode_interrupt_cb);
2381     }
2382     term_init();
2383
2384     timer_start = av_gettime();
2385
2386     for(; received_sigterm == 0;) {
2387         int file_index, ist_index;
2388         AVPacket pkt;
2389         double ipts_min;
2390         double opts_min;
2391
2392     redo:
2393         ipts_min= 1e100;
2394         opts_min= 1e100;
2395         /* if 'q' pressed, exits */
2396         if (!using_stdin) {
2397             if (q_pressed)
2398                 break;
2399             /* read_key() returns 0 on EOF */
2400             key = read_key();
2401             if (key == 'q')
2402                 break;
2403         }
2404
2405         /* select the stream that we must read now by looking at the
2406            smallest output pts */
2407         file_index = -1;
2408         for(i=0;i<nb_ostreams;i++) {
2409             double ipts, opts;
2410             ost = ost_table[i];
2411             os = output_files[ost->file_index];
2412             ist = ist_table[ost->source_index];
2413             if(ist->is_past_recording_time || no_packet[ist->file_index])
2414                 continue;
2415                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2416             ipts = (double)ist->pts;
2417             if (!file_table[ist->file_index].eof_reached){
2418                 if(ipts < ipts_min) {
2419                     ipts_min = ipts;
2420                     if(input_sync ) file_index = ist->file_index;
2421                 }
2422                 if(opts < opts_min) {
2423                     opts_min = opts;
2424                     if(!input_sync) file_index = ist->file_index;
2425                 }
2426             }
2427             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2428                 file_index= -1;
2429                 break;
2430             }
2431         }
2432         /* if none, if is finished */
2433         if (file_index < 0) {
2434             if(no_packet_count){
2435                 no_packet_count=0;
2436                 memset(no_packet, 0, sizeof(no_packet));
2437                 usleep(10000);
2438                 continue;
2439             }
2440             break;
2441         }
2442
2443         /* finish if limit size exhausted */
2444         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2445             break;
2446
2447         /* read a frame from it and output it in the fifo */
2448         is = input_files[file_index];
2449         ret= av_read_frame(is, &pkt);
2450         if(ret == AVERROR(EAGAIN)){
2451             no_packet[file_index]=1;
2452             no_packet_count++;
2453             continue;
2454         }
2455         if (ret < 0) {
2456             file_table[file_index].eof_reached = 1;
2457             if (opt_shortest)
2458                 break;
2459             else
2460                 continue;
2461         }
2462
2463         no_packet_count=0;
2464         memset(no_packet, 0, sizeof(no_packet));
2465
2466         if (do_pkt_dump) {
2467             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2468         }
2469         /* the following test is needed in case new streams appear
2470            dynamically in stream : we ignore them */
2471         if (pkt.stream_index >= file_table[file_index].nb_streams)
2472             goto discard_packet;
2473         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2474         ist = ist_table[ist_index];
2475         if (ist->discard)
2476             goto discard_packet;
2477
2478         if (pkt.dts != AV_NOPTS_VALUE)
2479             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2480         if (pkt.pts != AV_NOPTS_VALUE)
2481             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2482
2483         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2484             && input_files_ts_scale[file_index][pkt.stream_index]){
2485             if(pkt.pts != AV_NOPTS_VALUE)
2486                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2487             if(pkt.dts != AV_NOPTS_VALUE)
2488                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2489         }
2490
2491 //        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);
2492         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2493             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2494             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2495             int64_t delta= pkt_dts - ist->next_pts;
2496             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2497                 input_files_ts_offset[ist->file_index]-= delta;
2498                 if (verbose > 2)
2499                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2500                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2501                 if(pkt.pts != AV_NOPTS_VALUE)
2502                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2503             }
2504         }
2505
2506         /* finish if recording time exhausted */
2507         if (recording_time != INT64_MAX &&
2508             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2509             ist->is_past_recording_time = 1;
2510             goto discard_packet;
2511         }
2512
2513         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2514         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2515
2516             if (verbose >= 0)
2517                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2518                         ist->file_index, ist->index);
2519             if (exit_on_error)
2520                 ffmpeg_exit(1);
2521             av_free_packet(&pkt);
2522             goto redo;
2523         }
2524
2525     discard_packet:
2526         av_free_packet(&pkt);
2527
2528         /* dump report by using the output first video and audio streams */
2529         print_report(output_files, ost_table, nb_ostreams, 0);
2530     }
2531
2532     /* at the end of stream, we must flush the decoder buffers */
2533     for(i=0;i<nb_istreams;i++) {
2534         ist = ist_table[i];
2535         if (ist->decoding_needed) {
2536             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2537         }
2538     }
2539
2540     term_exit();
2541
2542     /* write the trailer if needed and close file */
2543     for(i=0;i<nb_output_files;i++) {
2544         os = output_files[i];
2545         av_write_trailer(os);
2546     }
2547
2548     /* dump report by using the first video and audio streams */
2549     print_report(output_files, ost_table, nb_ostreams, 1);
2550
2551     /* close each encoder */
2552     for(i=0;i<nb_ostreams;i++) {
2553         ost = ost_table[i];
2554         if (ost->encoding_needed) {
2555             av_freep(&ost->st->codec->stats_in);
2556             avcodec_close(ost->st->codec);
2557         }
2558     }
2559
2560     /* close each decoder */
2561     for(i=0;i<nb_istreams;i++) {
2562         ist = ist_table[i];
2563         if (ist->decoding_needed) {
2564             avcodec_close(ist->st->codec);
2565         }
2566     }
2567 #if CONFIG_AVFILTER
2568     if (graph) {
2569         avfilter_graph_destroy(graph);
2570         av_freep(&graph);
2571     }
2572 #endif
2573
2574     /* finished ! */
2575     ret = 0;
2576
2577  fail:
2578     av_freep(&bit_buffer);
2579     av_free(file_table);
2580
2581     if (ist_table) {
2582         for(i=0;i<nb_istreams;i++) {
2583             ist = ist_table[i];
2584             av_free(ist);
2585         }
2586         av_free(ist_table);
2587     }
2588     if (ost_table) {
2589         for(i=0;i<nb_ostreams;i++) {
2590             ost = ost_table[i];
2591             if (ost) {
2592                 if (ost->st->stream_copy)
2593                     av_freep(&ost->st->codec->extradata);
2594                 if (ost->logfile) {
2595                     fclose(ost->logfile);
2596                     ost->logfile = NULL;
2597                 }
2598                 av_fifo_free(ost->fifo); /* works even if fifo is not
2599                                              initialized but set to zero */
2600                 av_free(ost->pict_tmp.data[0]);
2601                 if (ost->video_resample)
2602                     sws_freeContext(ost->img_resample_ctx);
2603                 if (ost->resample)
2604                     audio_resample_close(ost->resample);
2605                 if (ost->reformat_ctx)
2606                     av_audio_convert_free(ost->reformat_ctx);
2607                 av_free(ost);
2608             }
2609         }
2610         av_free(ost_table);
2611     }
2612     return ret;
2613 }
2614
2615 static void opt_format(const char *arg)
2616 {
2617     /* compatibility stuff for pgmyuv */
2618     if (!strcmp(arg, "pgmyuv")) {
2619         pgmyuv_compatibility_hack=1;
2620 //        opt_image_format(arg);
2621         arg = "image2";
2622         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2623     }
2624
2625     last_asked_format = arg;
2626 }
2627
2628 static void opt_video_rc_override_string(const char *arg)
2629 {
2630     video_rc_override_string = arg;
2631 }
2632
2633 static int opt_me_threshold(const char *opt, const char *arg)
2634 {
2635     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2636     return 0;
2637 }
2638
2639 static int opt_verbose(const char *opt, const char *arg)
2640 {
2641     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2642     return 0;
2643 }
2644
2645 static int opt_frame_rate(const char *opt, const char *arg)
2646 {
2647     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2648         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2649         ffmpeg_exit(1);
2650     }
2651     return 0;
2652 }
2653
2654 static int opt_bitrate(const char *opt, const char *arg)
2655 {
2656     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2657
2658     opt_default(opt, arg);
2659
2660     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2661         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2662
2663     return 0;
2664 }
2665
2666 static int opt_frame_crop(const char *opt, const char *arg)
2667 {
2668     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2669     return AVERROR(EINVAL);
2670 }
2671
2672 static void opt_frame_size(const char *arg)
2673 {
2674     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2675         fprintf(stderr, "Incorrect frame size\n");
2676         ffmpeg_exit(1);
2677     }
2678 }
2679
2680 static int opt_pad(const char *opt, const char *arg) {
2681     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2682     return -1;
2683 }
2684
2685 static void opt_frame_pix_fmt(const char *arg)
2686 {
2687     if (strcmp(arg, "list")) {
2688         frame_pix_fmt = av_get_pix_fmt(arg);
2689         if (frame_pix_fmt == PIX_FMT_NONE) {
2690             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2691             ffmpeg_exit(1);
2692         }
2693     } else {
2694         show_pix_fmts();
2695         ffmpeg_exit(0);
2696     }
2697 }
2698
2699 static void opt_frame_aspect_ratio(const char *arg)
2700 {
2701     int x = 0, y = 0;
2702     double ar = 0;
2703     const char *p;
2704     char *end;
2705
2706     p = strchr(arg, ':');
2707     if (p) {
2708         x = strtol(arg, &end, 10);
2709         if (end == p)
2710             y = strtol(end+1, &end, 10);
2711         if (x > 0 && y > 0)
2712             ar = (double)x / (double)y;
2713     } else
2714         ar = strtod(arg, NULL);
2715
2716     if (!ar) {
2717         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2718         ffmpeg_exit(1);
2719     }
2720     frame_aspect_ratio = ar;
2721 }
2722
2723 static int opt_metadata(const char *opt, const char *arg)
2724 {
2725     char *mid= strchr(arg, '=');
2726
2727     if(!mid){
2728         fprintf(stderr, "Missing =\n");
2729         ffmpeg_exit(1);
2730     }
2731     *mid++= 0;
2732
2733     av_metadata_set2(&metadata, arg, mid, 0);
2734
2735     return 0;
2736 }
2737
2738 static void opt_qscale(const char *arg)
2739 {
2740     video_qscale = atof(arg);
2741     if (video_qscale <= 0 ||
2742         video_qscale > 255) {
2743         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2744         ffmpeg_exit(1);
2745     }
2746 }
2747
2748 static void opt_top_field_first(const char *arg)
2749 {
2750     top_field_first= atoi(arg);
2751 }
2752
2753 static int opt_thread_count(const char *opt, const char *arg)
2754 {
2755     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2756 #if !HAVE_THREADS
2757     if (verbose >= 0)
2758         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2759 #endif
2760     return 0;
2761 }
2762
2763 static void opt_audio_sample_fmt(const char *arg)
2764 {
2765     if (strcmp(arg, "list"))
2766         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2767     else {
2768         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2769         ffmpeg_exit(0);
2770     }
2771 }
2772
2773 static int opt_audio_rate(const char *opt, const char *arg)
2774 {
2775     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2776     return 0;
2777 }
2778
2779 static int opt_audio_channels(const char *opt, const char *arg)
2780 {
2781     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2782     return 0;
2783 }
2784
2785 static void opt_video_channel(const char *arg)
2786 {
2787     video_channel = strtol(arg, NULL, 0);
2788 }
2789
2790 static void opt_video_standard(const char *arg)
2791 {
2792     video_standard = av_strdup(arg);
2793 }
2794
2795 static void opt_codec(int *pstream_copy, char **pcodec_name,
2796                       int codec_type, const char *arg)
2797 {
2798     av_freep(pcodec_name);
2799     if (!strcmp(arg, "copy")) {
2800         *pstream_copy = 1;
2801     } else {
2802         *pcodec_name = av_strdup(arg);
2803     }
2804 }
2805
2806 static void opt_audio_codec(const char *arg)
2807 {
2808     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2809 }
2810
2811 static void opt_audio_tag(const char *arg)
2812 {
2813     char *tail;
2814     audio_codec_tag= strtol(arg, &tail, 0);
2815
2816     if(!tail || *tail)
2817         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2818 }
2819
2820 static void opt_video_tag(const char *arg)
2821 {
2822     char *tail;
2823     video_codec_tag= strtol(arg, &tail, 0);
2824
2825     if(!tail || *tail)
2826         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2827 }
2828
2829 static void opt_video_codec(const char *arg)
2830 {
2831     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2832 }
2833
2834 static void opt_subtitle_codec(const char *arg)
2835 {
2836     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2837 }
2838
2839 static void opt_subtitle_tag(const char *arg)
2840 {
2841     char *tail;
2842     subtitle_codec_tag= strtol(arg, &tail, 0);
2843
2844     if(!tail || *tail)
2845         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2846 }
2847
2848 static void opt_map(const char *arg)
2849 {
2850     AVStreamMap *m;
2851     char *p;
2852
2853     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2854     m = &stream_maps[nb_stream_maps-1];
2855
2856     m->file_index = strtol(arg, &p, 0);
2857     if (*p)
2858         p++;
2859
2860     m->stream_index = strtol(p, &p, 0);
2861     if (*p) {
2862         p++;
2863         m->sync_file_index = strtol(p, &p, 0);
2864         if (*p)
2865             p++;
2866         m->sync_stream_index = strtol(p, &p, 0);
2867     } else {
2868         m->sync_file_index = m->file_index;
2869         m->sync_stream_index = m->stream_index;
2870     }
2871 }
2872
2873 static void opt_map_meta_data(const char *arg)
2874 {
2875     AVMetaDataMap *m;
2876     char *p;
2877
2878     m = &meta_data_maps[nb_meta_data_maps++];
2879
2880     m->out_file = strtol(arg, &p, 0);
2881     if (*p)
2882         p++;
2883
2884     m->in_file = strtol(p, &p, 0);
2885 }
2886
2887 static void opt_input_ts_scale(const char *arg)
2888 {
2889     unsigned int stream;
2890     double scale;
2891     char *p;
2892
2893     stream = strtol(arg, &p, 0);
2894     if (*p)
2895         p++;
2896     scale= strtod(p, &p);
2897
2898     if(stream >= MAX_STREAMS)
2899         ffmpeg_exit(1);
2900
2901     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);
2902     input_files_ts_scale[nb_input_files][stream]= scale;
2903 }
2904
2905 static int opt_recording_time(const char *opt, const char *arg)
2906 {
2907     recording_time = parse_time_or_die(opt, arg, 1);
2908     return 0;
2909 }
2910
2911 static int opt_start_time(const char *opt, const char *arg)
2912 {
2913     start_time = parse_time_or_die(opt, arg, 1);
2914     return 0;
2915 }
2916
2917 static int opt_recording_timestamp(const char *opt, const char *arg)
2918 {
2919     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2920     return 0;
2921 }
2922
2923 static int opt_input_ts_offset(const char *opt, const char *arg)
2924 {
2925     input_ts_offset = parse_time_or_die(opt, arg, 1);
2926     return 0;
2927 }
2928
2929 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
2930 {
2931     const char *codec_string = encoder ? "encoder" : "decoder";
2932     AVCodec *codec;
2933
2934     if(!name)
2935         return CODEC_ID_NONE;
2936     codec = encoder ?
2937         avcodec_find_encoder_by_name(name) :
2938         avcodec_find_decoder_by_name(name);
2939     if(!codec) {
2940         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2941         ffmpeg_exit(1);
2942     }
2943     if(codec->type != type) {
2944         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2945         ffmpeg_exit(1);
2946     }
2947     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
2948        strict > FF_COMPLIANCE_EXPERIMENTAL) {
2949         fprintf(stderr, "%s '%s' is experimental and might produce bad "
2950                 "results.\nAdd '-strict experimental' if you want to use it.\n",
2951                 codec_string, codec->name);
2952         codec = encoder ?
2953             avcodec_find_encoder(codec->id) :
2954             avcodec_find_decoder(codec->id);
2955         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
2956             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
2957                     codec_string, codec->name);
2958         ffmpeg_exit(1);
2959     }
2960     return codec->id;
2961 }
2962
2963 static void opt_input_file(const char *filename)
2964 {
2965     AVFormatContext *ic;
2966     AVFormatParameters params, *ap = &params;
2967     AVInputFormat *file_iformat = NULL;
2968     int err, i, ret, rfps, rfps_base;
2969     int64_t timestamp;
2970
2971     if (last_asked_format) {
2972         if (!(file_iformat = av_find_input_format(last_asked_format))) {
2973             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2974             ffmpeg_exit(1);
2975         }
2976         last_asked_format = NULL;
2977     }
2978
2979     if (!strcmp(filename, "-"))
2980         filename = "pipe:";
2981
2982     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2983                     !strcmp(filename, "/dev/stdin");
2984
2985     /* get default parameters from command line */
2986     ic = avformat_alloc_context();
2987     if (!ic) {
2988         print_error(filename, AVERROR(ENOMEM));
2989         ffmpeg_exit(1);
2990     }
2991
2992     memset(ap, 0, sizeof(*ap));
2993     ap->prealloced_context = 1;
2994     ap->sample_rate = audio_sample_rate;
2995     ap->channels = audio_channels;
2996     ap->time_base.den = frame_rate.num;
2997     ap->time_base.num = frame_rate.den;
2998     ap->width = frame_width;
2999     ap->height = frame_height;
3000     ap->pix_fmt = frame_pix_fmt;
3001    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3002     ap->channel = video_channel;
3003     ap->standard = video_standard;
3004
3005     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3006
3007     ic->video_codec_id   =
3008         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3009                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3010     ic->audio_codec_id   =
3011         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3012                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3013     ic->subtitle_codec_id=
3014         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3015                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3016     ic->flags |= AVFMT_FLAG_NONBLOCK;
3017
3018     if(pgmyuv_compatibility_hack)
3019         ic->video_codec_id= CODEC_ID_PGMYUV;
3020
3021     /* open the input file with generic libav function */
3022     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3023     if (err < 0) {
3024         print_error(filename, err);
3025         ffmpeg_exit(1);
3026     }
3027     if(opt_programid) {
3028         int i, j;
3029         int found=0;
3030         for(i=0; i<ic->nb_streams; i++){
3031             ic->streams[i]->discard= AVDISCARD_ALL;
3032         }
3033         for(i=0; i<ic->nb_programs; i++){
3034             AVProgram *p= ic->programs[i];
3035             if(p->id != opt_programid){
3036                 p->discard = AVDISCARD_ALL;
3037             }else{
3038                 found=1;
3039                 for(j=0; j<p->nb_stream_indexes; j++){
3040                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3041                 }
3042             }
3043         }
3044         if(!found){
3045             fprintf(stderr, "Specified program id not found\n");
3046             ffmpeg_exit(1);
3047         }
3048         opt_programid=0;
3049     }
3050
3051     ic->loop_input = loop_input;
3052
3053     /* If not enough info to get the stream parameters, we decode the
3054        first frames to get it. (used in mpeg case for example) */
3055     ret = av_find_stream_info(ic);
3056     if (ret < 0 && verbose >= 0) {
3057         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3058         av_close_input_file(ic);
3059         ffmpeg_exit(1);
3060     }
3061
3062     timestamp = start_time;
3063     /* add the stream start time */
3064     if (ic->start_time != AV_NOPTS_VALUE)
3065         timestamp += ic->start_time;
3066
3067     /* if seeking requested, we execute it */
3068     if (start_time != 0) {
3069         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3070         if (ret < 0) {
3071             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3072                     filename, (double)timestamp / AV_TIME_BASE);
3073         }
3074         /* reset seek info */
3075         start_time = 0;
3076     }
3077
3078     /* update the current parameters so that they match the one of the input stream */
3079     for(i=0;i<ic->nb_streams;i++) {
3080         AVStream *st = ic->streams[i];
3081         AVCodecContext *dec = st->codec;
3082         avcodec_thread_init(dec, thread_count);
3083         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3084         switch (dec->codec_type) {
3085         case AVMEDIA_TYPE_AUDIO:
3086             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3087             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]);
3088             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3089             channel_layout    = dec->channel_layout;
3090             audio_channels    = dec->channels;
3091             audio_sample_rate = dec->sample_rate;
3092             audio_sample_fmt  = dec->sample_fmt;
3093             if(audio_disable)
3094                 st->discard= AVDISCARD_ALL;
3095             /* Note that av_find_stream_info can add more streams, and we
3096              * currently have no chance of setting up lowres decoding
3097              * early enough for them. */
3098             if (dec->lowres)
3099                 audio_sample_rate >>= dec->lowres;
3100             break;
3101         case AVMEDIA_TYPE_VIDEO:
3102             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3103             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]);
3104             frame_height = dec->height;
3105             frame_width  = dec->width;
3106             if(ic->streams[i]->sample_aspect_ratio.num)
3107                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3108             else
3109                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3110             frame_aspect_ratio *= (float) dec->width / dec->height;
3111             frame_pix_fmt = dec->pix_fmt;
3112             rfps      = ic->streams[i]->r_frame_rate.num;
3113             rfps_base = ic->streams[i]->r_frame_rate.den;
3114             if (dec->lowres) {
3115                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3116                 frame_height >>= dec->lowres;
3117                 frame_width  >>= dec->lowres;
3118             }
3119             if(me_threshold)
3120                 dec->debug |= FF_DEBUG_MV;
3121
3122             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3123
3124                 if (verbose >= 0)
3125                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3126                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3127
3128                     (float)rfps / rfps_base, rfps, rfps_base);
3129             }
3130             /* update the current frame rate to match the stream frame rate */
3131             frame_rate.num = rfps;
3132             frame_rate.den = rfps_base;
3133
3134             if(video_disable)
3135                 st->discard= AVDISCARD_ALL;
3136             else if(video_discard)
3137                 st->discard= video_discard;
3138             break;
3139         case AVMEDIA_TYPE_DATA:
3140             break;
3141         case AVMEDIA_TYPE_SUBTITLE:
3142             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3143             if(subtitle_disable)
3144                 st->discard = AVDISCARD_ALL;
3145             break;
3146         case AVMEDIA_TYPE_ATTACHMENT:
3147         case AVMEDIA_TYPE_UNKNOWN:
3148             break;
3149         default:
3150             abort();
3151         }
3152     }
3153
3154     input_files[nb_input_files] = ic;
3155     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3156     /* dump the file content */
3157     if (verbose >= 0)
3158         dump_format(ic, nb_input_files, filename, 0);
3159
3160     nb_input_files++;
3161
3162     video_channel = 0;
3163
3164     av_freep(&video_codec_name);
3165     av_freep(&audio_codec_name);
3166     av_freep(&subtitle_codec_name);
3167 }
3168
3169 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3170                                          int *has_subtitle_ptr)
3171 {
3172     int has_video, has_audio, has_subtitle, i, j;
3173     AVFormatContext *ic;
3174
3175     has_video = 0;
3176     has_audio = 0;
3177     has_subtitle = 0;
3178     for(j=0;j<nb_input_files;j++) {
3179         ic = input_files[j];
3180         for(i=0;i<ic->nb_streams;i++) {
3181             AVCodecContext *enc = ic->streams[i]->codec;
3182             switch(enc->codec_type) {
3183             case AVMEDIA_TYPE_AUDIO:
3184                 has_audio = 1;
3185                 break;
3186             case AVMEDIA_TYPE_VIDEO:
3187                 has_video = 1;
3188                 break;
3189             case AVMEDIA_TYPE_SUBTITLE:
3190                 has_subtitle = 1;
3191                 break;
3192             case AVMEDIA_TYPE_DATA:
3193             case AVMEDIA_TYPE_ATTACHMENT:
3194             case AVMEDIA_TYPE_UNKNOWN:
3195                 break;
3196             default:
3197                 abort();
3198             }
3199         }
3200     }
3201     *has_video_ptr = has_video;
3202     *has_audio_ptr = has_audio;
3203     *has_subtitle_ptr = has_subtitle;
3204 }
3205
3206 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
3207 {
3208     int idx = oc->nb_streams - 1;
3209     AVOutputStream *ost;
3210
3211     output_streams_for_file[file_idx] =
3212         grow_array(output_streams_for_file[file_idx],
3213                    sizeof(*output_streams_for_file[file_idx]),
3214                    &nb_output_streams_for_file[file_idx],
3215                    oc->nb_streams);
3216     ost = output_streams_for_file[file_idx][idx] =
3217         av_mallocz(sizeof(AVOutputStream));
3218     if (!ost) {
3219         fprintf(stderr, "Could not alloc output stream\n");
3220         ffmpeg_exit(1);
3221     }
3222     ost->file_index = file_idx;
3223     ost->index = idx;
3224     return ost;
3225 }
3226
3227 static void new_video_stream(AVFormatContext *oc, int file_idx)
3228 {
3229     AVStream *st;
3230     AVOutputStream *ost;
3231     AVCodecContext *video_enc;
3232     enum CodecID codec_id;
3233     AVCodec *codec= NULL;
3234
3235     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3236     if (!st) {
3237         fprintf(stderr, "Could not alloc stream\n");
3238         ffmpeg_exit(1);
3239     }
3240     ost = new_output_stream(oc, file_idx);
3241
3242     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3243     if(!video_stream_copy){
3244         if (video_codec_name) {
3245             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3246                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3247             codec = avcodec_find_encoder_by_name(video_codec_name);
3248             output_codecs[nb_output_codecs-1] = codec;
3249         } else {
3250             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3251             codec = avcodec_find_encoder(codec_id);
3252         }
3253     }
3254
3255     avcodec_get_context_defaults3(st->codec, codec);
3256     ost->bitstream_filters = video_bitstream_filters;
3257     video_bitstream_filters= NULL;
3258
3259     avcodec_thread_init(st->codec, thread_count);
3260
3261     video_enc = st->codec;
3262
3263     if(video_codec_tag)
3264         video_enc->codec_tag= video_codec_tag;
3265
3266     if(   (video_global_header&1)
3267        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3268         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3269         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3270     }
3271     if(video_global_header&2){
3272         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3273         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3274     }
3275
3276     if (video_stream_copy) {
3277         st->stream_copy = 1;
3278         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3279         video_enc->sample_aspect_ratio =
3280         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3281     } else {
3282         const char *p;
3283         int i;
3284         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3285
3286         video_enc->codec_id = codec_id;
3287         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3288
3289         if (codec && codec->supported_framerates && !force_fps)
3290             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3291         video_enc->time_base.den = fps.num;
3292         video_enc->time_base.num = fps.den;
3293
3294         video_enc->width = frame_width;
3295         video_enc->height = frame_height;
3296         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3297         video_enc->pix_fmt = frame_pix_fmt;
3298         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3299
3300         choose_pixel_fmt(st, codec);
3301
3302         if (intra_only)
3303             video_enc->gop_size = 0;
3304         if (video_qscale || same_quality) {
3305             video_enc->flags |= CODEC_FLAG_QSCALE;
3306             video_enc->global_quality=
3307                 st->quality = FF_QP2LAMBDA * video_qscale;
3308         }
3309
3310         if(intra_matrix)
3311             video_enc->intra_matrix = intra_matrix;
3312         if(inter_matrix)
3313             video_enc->inter_matrix = inter_matrix;
3314
3315         p= video_rc_override_string;
3316         for(i=0; p; i++){
3317             int start, end, q;
3318             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3319             if(e!=3){
3320                 fprintf(stderr, "error parsing rc_override\n");
3321                 ffmpeg_exit(1);
3322             }
3323             video_enc->rc_override=
3324                 av_realloc(video_enc->rc_override,
3325                            sizeof(RcOverride)*(i+1));
3326             video_enc->rc_override[i].start_frame= start;
3327             video_enc->rc_override[i].end_frame  = end;
3328             if(q>0){
3329                 video_enc->rc_override[i].qscale= q;
3330                 video_enc->rc_override[i].quality_factor= 1.0;
3331             }
3332             else{
3333                 video_enc->rc_override[i].qscale= 0;
3334                 video_enc->rc_override[i].quality_factor= -q/100.0;
3335             }
3336             p= strchr(p, '/');
3337             if(p) p++;
3338         }
3339         video_enc->rc_override_count=i;
3340         if (!video_enc->rc_initial_buffer_occupancy)
3341             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3342         video_enc->me_threshold= me_threshold;
3343         video_enc->intra_dc_precision= intra_dc_precision - 8;
3344
3345         if (do_psnr)
3346             video_enc->flags|= CODEC_FLAG_PSNR;
3347
3348         /* two pass mode */
3349         if (do_pass) {
3350             if (do_pass == 1) {
3351                 video_enc->flags |= CODEC_FLAG_PASS1;
3352             } else {
3353                 video_enc->flags |= CODEC_FLAG_PASS2;
3354             }
3355         }
3356     }
3357     if (video_language) {
3358         av_metadata_set2(&st->metadata, "language", video_language, 0);
3359         av_freep(&video_language);
3360     }
3361
3362     /* reset some key parameters */
3363     video_disable = 0;
3364     av_freep(&video_codec_name);
3365     video_stream_copy = 0;
3366     frame_pix_fmt = PIX_FMT_NONE;
3367 }
3368
3369 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3370 {
3371     AVStream *st;
3372     AVOutputStream *ost;
3373     AVCodec *codec= NULL;
3374     AVCodecContext *audio_enc;
3375     enum CodecID codec_id;
3376
3377     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3378     if (!st) {
3379         fprintf(stderr, "Could not alloc stream\n");
3380         ffmpeg_exit(1);
3381     }
3382     ost = new_output_stream(oc, file_idx);
3383
3384     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3385     if(!audio_stream_copy){
3386         if (audio_codec_name) {
3387             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3388                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3389             codec = avcodec_find_encoder_by_name(audio_codec_name);
3390             output_codecs[nb_output_codecs-1] = codec;
3391         } else {
3392             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3393             codec = avcodec_find_encoder(codec_id);
3394         }
3395     }
3396
3397     avcodec_get_context_defaults3(st->codec, codec);
3398
3399     ost->bitstream_filters = audio_bitstream_filters;
3400     audio_bitstream_filters= NULL;
3401
3402     avcodec_thread_init(st->codec, thread_count);
3403
3404     audio_enc = st->codec;
3405     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3406
3407     if(audio_codec_tag)
3408         audio_enc->codec_tag= audio_codec_tag;
3409
3410     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3411         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3412         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3413     }
3414     if (audio_stream_copy) {
3415         st->stream_copy = 1;
3416         audio_enc->channels = audio_channels;
3417         audio_enc->sample_rate = audio_sample_rate;
3418     } else {
3419         audio_enc->codec_id = codec_id;
3420         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3421
3422         if (audio_qscale > QSCALE_NONE) {
3423             audio_enc->flags |= CODEC_FLAG_QSCALE;
3424             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3425         }
3426         audio_enc->channels = audio_channels;
3427         audio_enc->sample_fmt = audio_sample_fmt;
3428         audio_enc->sample_rate = audio_sample_rate;
3429         audio_enc->channel_layout = channel_layout;
3430         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3431             audio_enc->channel_layout = 0;
3432         choose_sample_fmt(st, codec);
3433         choose_sample_rate(st, codec);
3434     }
3435     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3436     if (audio_language) {
3437         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3438         av_freep(&audio_language);
3439     }
3440
3441     /* reset some key parameters */
3442     audio_disable = 0;
3443     av_freep(&audio_codec_name);
3444     audio_stream_copy = 0;
3445 }
3446
3447 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3448 {
3449     AVStream *st;
3450     AVOutputStream *ost;
3451     AVCodec *codec=NULL;
3452     AVCodecContext *subtitle_enc;
3453
3454     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3455     if (!st) {
3456         fprintf(stderr, "Could not alloc stream\n");
3457         ffmpeg_exit(1);
3458     }
3459     ost = new_output_stream(oc, file_idx);
3460     subtitle_enc = st->codec;
3461     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3462     if(!subtitle_stream_copy){
3463         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3464                                                    avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3465         codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3466     }
3467     avcodec_get_context_defaults3(st->codec, codec);
3468
3469     ost->bitstream_filters = subtitle_bitstream_filters;
3470     subtitle_bitstream_filters= NULL;
3471
3472     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3473
3474     if(subtitle_codec_tag)
3475         subtitle_enc->codec_tag= subtitle_codec_tag;
3476
3477     if (subtitle_stream_copy) {
3478         st->stream_copy = 1;
3479     } else {
3480         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3481     }
3482
3483     if (subtitle_language) {
3484         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3485         av_freep(&subtitle_language);
3486     }
3487
3488     subtitle_disable = 0;
3489     av_freep(&subtitle_codec_name);
3490     subtitle_stream_copy = 0;
3491 }
3492
3493 static int opt_new_stream(const char *opt, const char *arg)
3494 {
3495     AVFormatContext *oc;
3496     int file_idx = nb_output_files - 1;
3497     if (nb_output_files <= 0) {
3498         fprintf(stderr, "At least one output file must be specified\n");
3499         ffmpeg_exit(1);
3500     }
3501     oc = output_files[file_idx];
3502
3503     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3504     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3505     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3506     else av_assert0(0);
3507     return 0;
3508 }
3509
3510 /* arg format is "output-stream-index:streamid-value". */
3511 static int opt_streamid(const char *opt, const char *arg)
3512 {
3513     int idx;
3514     char *p;
3515     char idx_str[16];
3516
3517     strncpy(idx_str, arg, sizeof(idx_str));
3518     idx_str[sizeof(idx_str)-1] = '\0';
3519     p = strchr(idx_str, ':');
3520     if (!p) {
3521         fprintf(stderr,
3522                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3523                 arg, opt);
3524         ffmpeg_exit(1);
3525     }
3526     *p++ = '\0';
3527     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3528     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3529     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3530     return 0;
3531 }
3532
3533 static void opt_output_file(const char *filename)
3534 {
3535     AVFormatContext *oc;
3536     int err, use_video, use_audio, use_subtitle;
3537     int input_has_video, input_has_audio, input_has_subtitle;
3538     AVFormatParameters params, *ap = &params;
3539     AVOutputFormat *file_oformat;
3540     AVMetadataTag *tag = NULL;
3541
3542     if (!strcmp(filename, "-"))
3543         filename = "pipe:";
3544
3545     oc = avformat_alloc_context();
3546     if (!oc) {
3547         print_error(filename, AVERROR(ENOMEM));
3548         ffmpeg_exit(1);
3549     }
3550
3551     if (last_asked_format) {
3552         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3553         if (!file_oformat) {
3554             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3555             ffmpeg_exit(1);
3556         }
3557         last_asked_format = NULL;
3558     } else {
3559         file_oformat = av_guess_format(NULL, filename, NULL);
3560         if (!file_oformat) {
3561             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3562                     filename);
3563             ffmpeg_exit(1);
3564         }
3565     }
3566
3567     oc->oformat = file_oformat;
3568     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3569
3570     if (!strcmp(file_oformat->name, "ffm") &&
3571         av_strstart(filename, "http:", NULL)) {
3572         /* special case for files sent to ffserver: we get the stream
3573            parameters from ffserver */
3574         int err = read_ffserver_streams(oc, filename);
3575         if (err < 0) {
3576             print_error(filename, err);
3577             ffmpeg_exit(1);
3578         }
3579     } else {
3580         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3581         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3582         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3583
3584         /* disable if no corresponding type found and at least one
3585            input file */
3586         if (nb_input_files > 0) {
3587             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3588                                          &input_has_subtitle);
3589             if (!input_has_video)
3590                 use_video = 0;
3591             if (!input_has_audio)
3592                 use_audio = 0;
3593             if (!input_has_subtitle)
3594                 use_subtitle = 0;
3595         }
3596
3597         /* manual disable */
3598         if (audio_disable)    use_audio    = 0;
3599         if (video_disable)    use_video    = 0;
3600         if (subtitle_disable) use_subtitle = 0;
3601
3602         if (use_video)    new_video_stream(oc, nb_output_files);
3603         if (use_audio)    new_audio_stream(oc, nb_output_files);
3604         if (use_subtitle) new_subtitle_stream(oc, nb_output_files);
3605
3606         oc->timestamp = recording_timestamp;
3607
3608         while ((tag = av_metadata_get(metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
3609             av_metadata_set2(&oc->metadata, tag->key, tag->value, 0);
3610         av_metadata_free(&metadata);
3611     }
3612
3613     output_files[nb_output_files++] = oc;
3614
3615     /* check filename in case of an image number is expected */
3616     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3617         if (!av_filename_number_test(oc->filename)) {
3618             print_error(oc->filename, AVERROR_NUMEXPECTED);
3619             ffmpeg_exit(1);
3620         }
3621     }
3622
3623     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3624         /* test if it already exists to avoid loosing precious files */
3625         if (!file_overwrite &&
3626             (strchr(filename, ':') == NULL ||
3627              filename[1] == ':' ||
3628              av_strstart(filename, "file:", NULL))) {
3629             if (url_exist(filename)) {
3630                 if (!using_stdin) {
3631                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3632                     fflush(stderr);
3633                     if (!read_yesno()) {
3634                         fprintf(stderr, "Not overwriting - exiting\n");
3635                         ffmpeg_exit(1);
3636                     }
3637                 }
3638                 else {
3639                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3640                     ffmpeg_exit(1);
3641                 }
3642             }
3643         }
3644
3645         /* open the file */
3646         if ((err = url_fopen(&oc->pb, filename, URL_WRONLY)) < 0) {
3647             print_error(filename, err);
3648             ffmpeg_exit(1);
3649         }
3650     }
3651
3652     memset(ap, 0, sizeof(*ap));
3653     if (av_set_parameters(oc, ap) < 0) {
3654         fprintf(stderr, "%s: Invalid encoding parameters\n",
3655                 oc->filename);
3656         ffmpeg_exit(1);
3657     }
3658
3659     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3660     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3661     oc->loop_output = loop_output;
3662     oc->flags |= AVFMT_FLAG_NONBLOCK;
3663
3664     set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
3665
3666     nb_streamid_map = 0;
3667 }
3668
3669 /* same option as mencoder */
3670 static void opt_pass(const char *pass_str)
3671 {
3672     int pass;
3673     pass = atoi(pass_str);
3674     if (pass != 1 && pass != 2) {
3675         fprintf(stderr, "pass number can be only 1 or 2\n");
3676         ffmpeg_exit(1);
3677     }
3678     do_pass = pass;
3679 }
3680
3681 static int64_t getutime(void)
3682 {
3683 #if HAVE_GETRUSAGE
3684     struct rusage rusage;
3685
3686     getrusage(RUSAGE_SELF, &rusage);
3687     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3688 #elif HAVE_GETPROCESSTIMES
3689     HANDLE proc;
3690     FILETIME c, e, k, u;
3691     proc = GetCurrentProcess();
3692     GetProcessTimes(proc, &c, &e, &k, &u);