Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #include "libavformat/ffm.h" // not public API
50
51 #if CONFIG_AVFILTER
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsink_buffer.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int disabled;           /** 1 is this mapping is disabled by a negative map */
95     int file_index;
96     int stream_index;
97     int sync_file_index;
98     int sync_stream_index;
99 } StreamMap;
100
101 /**
102  * select an input file for an output file
103  */
104 typedef struct MetadataMap {
105     int  file;      ///< file index
106     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
107     int  index;     ///< stream/chapter/program number
108 } MetadataMap;
109
110 static const OptionDef options[];
111
112 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
113 static const char *last_asked_format = NULL;
114 static AVDictionary *ts_scale;
115
116 static StreamMap *stream_maps = NULL;
117 static int nb_stream_maps;
118
119 static AVDictionary *codec_names;
120
121 /* first item specifies output metadata, second is input */
122 static MetadataMap (*meta_data_maps)[2] = NULL;
123 static int nb_meta_data_maps;
124 static int metadata_global_autocopy   = 1;
125 static int metadata_streams_autocopy  = 1;
126 static int metadata_chapters_autocopy = 1;
127
128 static int chapters_input_file = INT_MAX;
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 int frame_bits_per_raw_sample = 0;
139 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
140 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
141 static AVRational frame_rate;
142 static float video_qscale = 0;
143 static uint16_t *intra_matrix = NULL;
144 static uint16_t *inter_matrix = NULL;
145 static const char *video_rc_override_string=NULL;
146 static int video_disable = 0;
147 static int video_discard = 0;
148 static char *video_codec_name = NULL;
149 static unsigned int video_codec_tag = 0;
150 static char *video_language = NULL;
151 static int same_quant = 0;
152 static int do_deinterlace = 0;
153 static int top_field_first = -1;
154 static int me_threshold = 0;
155 static int intra_dc_precision = 8;
156 static int loop_input = 0;
157 static int loop_output = AVFMT_NOOUTPUTLOOP;
158 static int qp_hist = 0;
159 #if CONFIG_AVFILTER
160 static char *vfilters = NULL;
161 #endif
162
163 static int intra_only = 0;
164 static int audio_sample_rate = 0;
165 #define QSCALE_NONE -99999
166 static float audio_qscale = QSCALE_NONE;
167 static int audio_disable = 0;
168 static int audio_channels = 0;
169 static char  *audio_codec_name = NULL;
170 static unsigned int audio_codec_tag = 0;
171 static char *audio_language = NULL;
172
173 static int subtitle_disable = 0;
174 static char *subtitle_codec_name = NULL;
175 static char *subtitle_language = NULL;
176 static unsigned int subtitle_codec_tag = 0;
177
178 static int data_disable = 0;
179 static char *data_codec_name = NULL;
180 static unsigned int data_codec_tag = 0;
181
182 static float mux_preload= 0.5;
183 static float mux_max_delay= 0.7;
184
185 static int64_t recording_time = INT64_MAX;
186 static int64_t start_time = 0;
187 static int64_t input_ts_offset = 0;
188 static int file_overwrite = 0;
189 static AVDictionary *metadata;
190 static int do_benchmark = 0;
191 static int do_hex_dump = 0;
192 static int do_pkt_dump = 0;
193 static int do_psnr = 0;
194 static int do_pass = 0;
195 static const char *pass_logfilename_prefix;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb= 0;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int audio_volume = 256;
210
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int run_as_daemon  = 0;
215 static int thread_count= 1;
216 static int q_pressed = 0;
217 static int64_t video_size = 0;
218 static int64_t audio_size = 0;
219 static int64_t extra_size = 0;
220 static int nb_frames_dup = 0;
221 static int nb_frames_drop = 0;
222 static int input_sync;
223 static uint64_t limit_filesize = UINT64_MAX;
224 static int force_fps = 0;
225 static char *forced_key_frames = NULL;
226
227 static float dts_delta_threshold = 10;
228
229 static uint8_t *audio_buf;
230 static uint8_t *audio_out;
231 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
232
233 static short *samples;
234
235 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
236 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
238
239 static uint8_t *input_tmp= NULL;
240
241 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
242
243 typedef struct InputStream {
244     int file_index;
245     AVStream *st;
246     int discard;             /* true if stream data should be discarded */
247     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
248     AVCodec *dec;
249
250     int64_t       start;     /* time when read started */
251     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
252                                 is not defined */
253     int64_t       pts;       /* current pts */
254     double ts_scale;
255     int is_start;            /* is 1 at the start and after a discontinuity */
256     int showed_multi_packet_warning;
257     AVDictionary *opts;
258 } InputStream;
259
260 typedef struct InputFile {
261     AVFormatContext *ctx;
262     int eof_reached;      /* true if eof reached */
263     int ist_index;        /* index of first stream in ist_table */
264     int buffer_size;      /* current total buffer size */
265     int64_t ts_offset;
266     int nb_streams;       /* number of stream that avconv is aware of; may be different
267                              from ctx.nb_streams if new streams appear during av_read_frame() */
268 } InputFile;
269
270 typedef struct OutputStream {
271     int file_index;          /* file index */
272     int index;               /* stream index in the output file */
273     int source_index;        /* InputStream index */
274     AVStream *st;            /* stream in the output file */
275     int encoding_needed;     /* true if encoding needed for this stream */
276     int frame_number;
277     /* input pts and corresponding output pts
278        for A/V sync */
279     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
280     struct InputStream *sync_ist; /* input stream to sync against */
281     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
282     AVBitStreamFilterContext *bitstream_filters;
283     AVCodec *enc;
284
285     /* video only */
286     int video_resample;
287     AVFrame resample_frame;              /* temporary frame for image resampling */
288     struct SwsContext *img_resample_ctx; /* for image resampling */
289     int resample_height;
290     int resample_width;
291     int resample_pix_fmt;
292     AVRational frame_rate;
293
294     float frame_aspect_ratio;
295
296     /* forced key frames */
297     int64_t *forced_kf_pts;
298     int forced_kf_count;
299     int forced_kf_index;
300
301     /* audio only */
302     int audio_resample;
303     ReSampleContext *resample; /* for audio resampling */
304     int resample_sample_fmt;
305     int resample_channels;
306     int resample_sample_rate;
307     int reformat_pair;
308     AVAudioConvert *reformat_ctx;
309     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
310     FILE *logfile;
311
312 #if CONFIG_AVFILTER
313     AVFilterContext *output_video_filter;
314     AVFilterContext *input_video_filter;
315     AVFilterBufferRef *picref;
316     char *avfilter;
317     AVFilterGraph *graph;
318 #endif
319
320    int sws_flags;
321    AVDictionary *opts;
322    int is_past_recording_time;
323 } OutputStream;
324
325
326 #if HAVE_TERMIOS_H
327
328 /* init terminal so that we can grab keys */
329 static struct termios oldtty;
330 #endif
331
332 typedef struct OutputFile {
333     AVFormatContext *ctx;
334     AVDictionary *opts;
335     int ost_index;       /* index of the first stream in output_streams */
336     int64_t recording_time; /* desired length of the resulting file in microseconds */
337     int64_t start_time;     /* start time in microseconds */
338     uint64_t limit_filesize;
339 } OutputFile;
340
341 static InputStream *input_streams = NULL;
342 static int         nb_input_streams = 0;
343 static InputFile   *input_files   = NULL;
344 static int         nb_input_files   = 0;
345
346 static OutputStream *output_streams = NULL;
347 static int        nb_output_streams = 0;
348 static OutputFile   *output_files   = NULL;
349 static int        nb_output_files   = 0;
350
351 #if CONFIG_AVFILTER
352
353 static int configure_video_filters(InputStream *ist, OutputStream *ost)
354 {
355     AVFilterContext *last_filter, *filter;
356     /** filter graph containing all filters including input & output */
357     AVCodecContext *codec = ost->st->codec;
358     AVCodecContext *icodec = ist->st->codec;
359     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
360     AVRational sample_aspect_ratio;
361     char args[255];
362     int ret;
363
364     ost->graph = avfilter_graph_alloc();
365
366     if (ist->st->sample_aspect_ratio.num){
367         sample_aspect_ratio = ist->st->sample_aspect_ratio;
368     }else
369         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
370
371     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
372              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
373              sample_aspect_ratio.num, sample_aspect_ratio.den);
374
375     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
376                                        "src", args, NULL, ost->graph);
377     if (ret < 0)
378         return ret;
379     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
380                                        "out", NULL, pix_fmts, ost->graph);
381     if (ret < 0)
382         return ret;
383     last_filter = ost->input_video_filter;
384
385     if (codec->width  != icodec->width || codec->height != icodec->height) {
386         snprintf(args, 255, "%d:%d:flags=0x%X",
387                  codec->width,
388                  codec->height,
389                  ost->sws_flags);
390         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
391                                                 NULL, args, NULL, ost->graph)) < 0)
392             return ret;
393         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
394             return ret;
395         last_filter = filter;
396     }
397
398     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
399     ost->graph->scale_sws_opts = av_strdup(args);
400
401     if (ost->avfilter) {
402         AVFilterInOut *outputs = avfilter_inout_alloc();
403         AVFilterInOut *inputs  = avfilter_inout_alloc();
404
405         outputs->name    = av_strdup("in");
406         outputs->filter_ctx = last_filter;
407         outputs->pad_idx = 0;
408         outputs->next    = NULL;
409
410         inputs->name    = av_strdup("out");
411         inputs->filter_ctx = ost->output_video_filter;
412         inputs->pad_idx = 0;
413         inputs->next    = NULL;
414
415         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
416             return ret;
417         av_freep(&ost->avfilter);
418     } else {
419         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
420             return ret;
421     }
422
423     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
424         return ret;
425
426     codec->width  = ost->output_video_filter->inputs[0]->w;
427     codec->height = ost->output_video_filter->inputs[0]->h;
428     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
429         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
430         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
431         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
432
433     return 0;
434 }
435 #endif /* CONFIG_AVFILTER */
436
437 static void term_exit(void)
438 {
439     av_log(NULL, AV_LOG_QUIET, "%s", "");
440 #if HAVE_TERMIOS_H
441     if(!run_as_daemon)
442         tcsetattr (0, TCSANOW, &oldtty);
443 #endif
444 }
445
446 static volatile int received_sigterm = 0;
447
448 static void
449 sigterm_handler(int sig)
450 {
451     received_sigterm = sig;
452     q_pressed++;
453     term_exit();
454 }
455
456 static void term_init(void)
457 {
458 #if HAVE_TERMIOS_H
459     if(!run_as_daemon){
460     struct termios tty;
461
462     tcgetattr (0, &tty);
463     oldtty = tty;
464     atexit(term_exit);
465
466     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
467                           |INLCR|IGNCR|ICRNL|IXON);
468     tty.c_oflag |= OPOST;
469     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
470     tty.c_cflag &= ~(CSIZE|PARENB);
471     tty.c_cflag |= CS8;
472     tty.c_cc[VMIN] = 1;
473     tty.c_cc[VTIME] = 0;
474
475     tcsetattr (0, TCSANOW, &tty);
476     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
477     }
478 #endif
479
480     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
481     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
482 #ifdef SIGXCPU
483     signal(SIGXCPU, sigterm_handler);
484 #endif
485 }
486
487 /* read a key without blocking */
488 static int read_key(void)
489 {
490     unsigned char ch;
491 #if HAVE_TERMIOS_H
492     int n = 1;
493     struct timeval tv;
494     fd_set rfds;
495
496     if(run_as_daemon)
497         return -1;
498
499     FD_ZERO(&rfds);
500     FD_SET(0, &rfds);
501     tv.tv_sec = 0;
502     tv.tv_usec = 0;
503     n = select(1, &rfds, NULL, NULL, &tv);
504     if (n > 0) {
505         n = read(0, &ch, 1);
506         if (n == 1)
507             return ch;
508
509         return n;
510     }
511 #elif HAVE_KBHIT
512 #    if HAVE_PEEKNAMEDPIPE
513     static int is_pipe;
514     static HANDLE input_handle;
515     DWORD dw, nchars;
516     if(!input_handle){
517         input_handle = GetStdHandle(STD_INPUT_HANDLE);
518         is_pipe = !GetConsoleMode(input_handle, &dw);
519     }
520
521     if (stdin->_cnt > 0) {
522         read(0, &ch, 1);
523         return ch;
524     }
525     if (is_pipe) {
526         /* When running under a GUI, you will end here. */
527         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
528             return -1;
529         //Read it
530         if(nchars != 0) {
531             read(0, &ch, 1);
532             return ch;
533         }else{
534             return -1;
535         }
536     }
537 #    endif
538     if(kbhit())
539         return(getch());
540 #endif
541     return -1;
542 }
543
544 static int decode_interrupt_cb(void)
545 {
546     q_pressed += read_key() == 'q';
547     return q_pressed > 1;
548 }
549
550 static int exit_program(int ret)
551 {
552     int i;
553
554     /* close files */
555     for(i=0;i<nb_output_files;i++) {
556         AVFormatContext *s = output_files[i].ctx;
557         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
558             avio_close(s->pb);
559         avformat_free_context(s);
560         av_dict_free(&output_files[i].opts);
561     }
562     for(i=0;i<nb_input_files;i++) {
563         av_close_input_file(input_files[i].ctx);
564     }
565     for (i = 0; i < nb_input_streams; i++)
566         av_dict_free(&input_streams[i].opts);
567
568     av_free(intra_matrix);
569     av_free(inter_matrix);
570
571     if (vstats_file)
572         fclose(vstats_file);
573     av_free(vstats_filename);
574
575     av_free(meta_data_maps);
576
577     av_freep(&input_streams);
578     av_freep(&input_files);
579     av_freep(&output_streams);
580     av_freep(&output_files);
581
582     uninit_opts();
583     av_free(audio_buf);
584     av_free(audio_out);
585     allocated_audio_buf_size= allocated_audio_out_size= 0;
586     av_free(samples);
587
588 #if CONFIG_AVFILTER
589     avfilter_uninit();
590 #endif
591
592     av_freep(&input_tmp);
593
594     if (received_sigterm) {
595         fprintf(stderr,
596             "Received signal %d: terminating.\n",
597             (int) received_sigterm);
598         exit (255);
599     }
600
601     exit(ret); /* not all OS-es handle main() return value */
602     return ret;
603 }
604
605 static void assert_avoptions(AVDictionary *m)
606 {
607     AVDictionaryEntry *t;
608     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
609         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
610         exit_program(1);
611     }
612 }
613
614 static void assert_codec_experimental(AVCodecContext *c, int encoder)
615 {
616     const char *codec_string = encoder ? "encoder" : "decoder";
617     AVCodec *codec;
618     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
619         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
620         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
621                 "results.\nAdd '-strict experimental' if you want to use it.\n",
622                 codec_string, c->codec->name);
623         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
624         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
625             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
626                    codec_string, codec->name);
627         exit_program(1);
628     }
629 }
630
631 /* similar to ff_dynarray_add() and av_fast_realloc() */
632 static void *grow_array(void *array, int elem_size, int *size, int new_size)
633 {
634     if (new_size >= INT_MAX / elem_size) {
635         fprintf(stderr, "Array too big.\n");
636         exit_program(1);
637     }
638     if (*size < new_size) {
639         uint8_t *tmp = av_realloc(array, new_size*elem_size);
640         if (!tmp) {
641             fprintf(stderr, "Could not alloc buffer.\n");
642             exit_program(1);
643         }
644         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
645         *size = new_size;
646         return tmp;
647     }
648     return array;
649 }
650
651 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
652 {
653     if(codec && codec->sample_fmts){
654         const enum AVSampleFormat *p= codec->sample_fmts;
655         for(; *p!=-1; p++){
656             if(*p == st->codec->sample_fmt)
657                 break;
658         }
659         if (*p == -1) {
660             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
661                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
662             if(av_get_sample_fmt_name(st->codec->sample_fmt))
663             av_log(NULL, AV_LOG_WARNING,
664                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
665                    av_get_sample_fmt_name(st->codec->sample_fmt),
666                    codec->name,
667                    av_get_sample_fmt_name(codec->sample_fmts[0]));
668             st->codec->sample_fmt = codec->sample_fmts[0];
669         }
670     }
671 }
672
673 static void choose_sample_rate(AVStream *st, AVCodec *codec)
674 {
675     if(codec && codec->supported_samplerates){
676         const int *p= codec->supported_samplerates;
677         int best=0;
678         int best_dist=INT_MAX;
679         for(; *p; p++){
680             int dist= abs(st->codec->sample_rate - *p);
681             if(dist < best_dist){
682                 best_dist= dist;
683                 best= *p;
684             }
685         }
686         if(best_dist){
687             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
688         }
689         st->codec->sample_rate= best;
690     }
691 }
692
693 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
694 {
695     if(codec && codec->pix_fmts){
696         const enum PixelFormat *p= codec->pix_fmts;
697         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
698             if(st->codec->codec_id==CODEC_ID_MJPEG){
699                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
700             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
701                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
702             }
703         }
704         for(; *p!=-1; p++){
705             if(*p == st->codec->pix_fmt)
706                 break;
707         }
708         if (*p == -1) {
709             if(st->codec->pix_fmt != PIX_FMT_NONE)
710                 av_log(NULL, AV_LOG_WARNING,
711                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
712                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
713                         codec->name,
714                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
715             st->codec->pix_fmt = codec->pix_fmts[0];
716         }
717     }
718 }
719
720 static double
721 get_sync_ipts(const OutputStream *ost)
722 {
723     const InputStream *ist = ost->sync_ist;
724     OutputFile *of = &output_files[ost->file_index];
725     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
726 }
727
728 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
729     int ret;
730
731     while(bsfc){
732         AVPacket new_pkt= *pkt;
733         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
734                                           &new_pkt.data, &new_pkt.size,
735                                           pkt->data, pkt->size,
736                                           pkt->flags & AV_PKT_FLAG_KEY);
737         if(a>0){
738             av_free_packet(pkt);
739             new_pkt.destruct= av_destruct_packet;
740         } else if(a<0){
741             fprintf(stderr, "%s failed for stream %d, codec %s",
742                     bsfc->filter->name, pkt->stream_index,
743                     avctx->codec ? avctx->codec->name : "copy");
744             print_error("", a);
745             if (exit_on_error)
746                 exit_program(1);
747         }
748         *pkt= new_pkt;
749
750         bsfc= bsfc->next;
751     }
752
753     ret= av_interleaved_write_frame(s, pkt);
754     if(ret < 0){
755         print_error("av_interleaved_write_frame()", ret);
756         exit_program(1);
757     }
758 }
759
760 static void do_audio_out(AVFormatContext *s,
761                          OutputStream *ost,
762                          InputStream *ist,
763                          unsigned char *buf, int size)
764 {
765     uint8_t *buftmp;
766     int64_t audio_out_size, audio_buf_size;
767     int64_t allocated_for_size= size;
768
769     int size_out, frame_bytes, ret, resample_changed;
770     AVCodecContext *enc= ost->st->codec;
771     AVCodecContext *dec= ist->st->codec;
772     int osize = av_get_bytes_per_sample(enc->sample_fmt);
773     int isize = av_get_bytes_per_sample(dec->sample_fmt);
774     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
775
776 need_realloc:
777     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
778     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
779     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
780     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
781     audio_buf_size*= osize*enc->channels;
782
783     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
784     if(coded_bps > 8*osize)
785         audio_out_size= audio_out_size * coded_bps / (8*osize);
786     audio_out_size += FF_MIN_BUFFER_SIZE;
787
788     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
789         fprintf(stderr, "Buffer sizes too large\n");
790         exit_program(1);
791     }
792
793     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
794     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
795     if (!audio_buf || !audio_out){
796         fprintf(stderr, "Out of memory in do_audio_out\n");
797         exit_program(1);
798     }
799
800     if (enc->channels != dec->channels)
801         ost->audio_resample = 1;
802
803     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
804                        ost->resample_channels    != dec->channels   ||
805                        ost->resample_sample_rate != dec->sample_rate;
806
807     if ((ost->audio_resample && !ost->resample) || resample_changed) {
808         if (resample_changed) {
809             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
810                    ist->file_index, ist->st->index,
811                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
812                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
813             ost->resample_sample_fmt  = dec->sample_fmt;
814             ost->resample_channels    = dec->channels;
815             ost->resample_sample_rate = dec->sample_rate;
816             if (ost->resample)
817                 audio_resample_close(ost->resample);
818         }
819         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
820         if (audio_sync_method <= 1 &&
821             ost->resample_sample_fmt  == enc->sample_fmt &&
822             ost->resample_channels    == enc->channels   &&
823             ost->resample_sample_rate == enc->sample_rate) {
824             ost->resample = NULL;
825             ost->audio_resample = 0;
826         } else {
827             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
828                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
829             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
830                                                    enc->sample_rate, dec->sample_rate,
831                                                    enc->sample_fmt,  dec->sample_fmt,
832                                                    16, 10, 0, 0.8);
833             if (!ost->resample) {
834                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
835                         dec->channels, dec->sample_rate,
836                         enc->channels, enc->sample_rate);
837                 exit_program(1);
838             }
839         }
840     }
841
842 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
843     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
844         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
845         if (ost->reformat_ctx)
846             av_audio_convert_free(ost->reformat_ctx);
847         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
848                                                    dec->sample_fmt, 1, NULL, 0);
849         if (!ost->reformat_ctx) {
850             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
851                 av_get_sample_fmt_name(dec->sample_fmt),
852                 av_get_sample_fmt_name(enc->sample_fmt));
853             exit_program(1);
854         }
855         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
856     }
857
858     if(audio_sync_method){
859         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
860                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
861         double idelta= delta*dec->sample_rate / enc->sample_rate;
862         int byte_delta= ((int)idelta)*2*dec->channels;
863
864         //FIXME resample delay
865         if(fabs(delta) > 50){
866             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
867                 if(byte_delta < 0){
868                     byte_delta= FFMAX(byte_delta, -size);
869                     size += byte_delta;
870                     buf  -= byte_delta;
871                     if(verbose > 2)
872                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
873                     if(!size)
874                         return;
875                     ist->is_start=0;
876                 }else{
877                     input_tmp= av_realloc(input_tmp, byte_delta + size);
878
879                     if(byte_delta > allocated_for_size - size){
880                         allocated_for_size= byte_delta + (int64_t)size;
881                         goto need_realloc;
882                     }
883                     ist->is_start=0;
884
885                     memset(input_tmp, 0, byte_delta);
886                     memcpy(input_tmp + byte_delta, buf, size);
887                     buf= input_tmp;
888                     size += byte_delta;
889                     if(verbose > 2)
890                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
891                 }
892             }else if(audio_sync_method>1){
893                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
894                 av_assert0(ost->audio_resample);
895                 if(verbose > 2)
896                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
897 //                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));
898                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
899             }
900         }
901     }else
902         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
903                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
904
905     if (ost->audio_resample) {
906         buftmp = audio_buf;
907         size_out = audio_resample(ost->resample,
908                                   (short *)buftmp, (short *)buf,
909                                   size / (dec->channels * isize));
910         size_out = size_out * enc->channels * osize;
911     } else {
912         buftmp = buf;
913         size_out = size;
914     }
915
916     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
917         const void *ibuf[6]= {buftmp};
918         void *obuf[6]= {audio_buf};
919         int istride[6]= {isize};
920         int ostride[6]= {osize};
921         int len= size_out/istride[0];
922         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
923             printf("av_audio_convert() failed\n");
924             if (exit_on_error)
925                 exit_program(1);
926             return;
927         }
928         buftmp = audio_buf;
929         size_out = len*osize;
930     }
931
932     /* now encode as many frames as possible */
933     if (enc->frame_size > 1) {
934         /* output resampled raw samples */
935         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
936             fprintf(stderr, "av_fifo_realloc2() failed\n");
937             exit_program(1);
938         }
939         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
940
941         frame_bytes = enc->frame_size * osize * enc->channels;
942
943         while (av_fifo_size(ost->fifo) >= frame_bytes) {
944             AVPacket pkt;
945             av_init_packet(&pkt);
946
947             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
948
949             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
950
951             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
952                                        (short *)audio_buf);
953             if (ret < 0) {
954                 fprintf(stderr, "Audio encoding failed\n");
955                 exit_program(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             ost->sync_opts += enc->frame_size;
967         }
968     } else {
969         AVPacket pkt;
970         av_init_packet(&pkt);
971
972         ost->sync_opts += size_out / (osize * enc->channels);
973
974         /* output a pcm frame */
975         /* determine the size of the coded buffer */
976         size_out /= osize;
977         if (coded_bps)
978             size_out = size_out*coded_bps/8;
979
980         if(size_out > audio_out_size){
981             fprintf(stderr, "Internal error, buffer size too small\n");
982             exit_program(1);
983         }
984
985         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
986         ret = avcodec_encode_audio(enc, audio_out, size_out,
987                                    (short *)buftmp);
988         if (ret < 0) {
989             fprintf(stderr, "Audio encoding failed\n");
990             exit_program(1);
991         }
992         audio_size += ret;
993         pkt.stream_index= ost->index;
994         pkt.data= audio_out;
995         pkt.size= ret;
996         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
997             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
998         pkt.flags |= AV_PKT_FLAG_KEY;
999         write_frame(s, &pkt, enc, ost->bitstream_filters);
1000     }
1001 }
1002
1003 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1004 {
1005     AVCodecContext *dec;
1006     AVPicture *picture2;
1007     AVPicture picture_tmp;
1008     uint8_t *buf = 0;
1009
1010     dec = ist->st->codec;
1011
1012     /* deinterlace : must be done before any resize */
1013     if (do_deinterlace) {
1014         int size;
1015
1016         /* create temporary picture */
1017         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1018         buf = av_malloc(size);
1019         if (!buf)
1020             return;
1021
1022         picture2 = &picture_tmp;
1023         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1024
1025         if(avpicture_deinterlace(picture2, picture,
1026                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1027             /* if error, do not deinterlace */
1028             fprintf(stderr, "Deinterlacing failed\n");
1029             av_free(buf);
1030             buf = NULL;
1031             picture2 = picture;
1032         }
1033     } else {
1034         picture2 = picture;
1035     }
1036
1037     if (picture != picture2)
1038         *picture = *picture2;
1039     *bufp = buf;
1040 }
1041
1042 static void do_subtitle_out(AVFormatContext *s,
1043                             OutputStream *ost,
1044                             InputStream *ist,
1045                             AVSubtitle *sub,
1046                             int64_t pts)
1047 {
1048     static uint8_t *subtitle_out = NULL;
1049     int subtitle_out_max_size = 1024 * 1024;
1050     int subtitle_out_size, nb, i;
1051     AVCodecContext *enc;
1052     AVPacket pkt;
1053
1054     if (pts == AV_NOPTS_VALUE) {
1055         fprintf(stderr, "Subtitle packets must have a pts\n");
1056         if (exit_on_error)
1057             exit_program(1);
1058         return;
1059     }
1060
1061     enc = ost->st->codec;
1062
1063     if (!subtitle_out) {
1064         subtitle_out = av_malloc(subtitle_out_max_size);
1065     }
1066
1067     /* Note: DVB subtitle need one packet to draw them and one other
1068        packet to clear them */
1069     /* XXX: signal it in the codec context ? */
1070     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1071         nb = 2;
1072     else
1073         nb = 1;
1074
1075     for(i = 0; i < nb; i++) {
1076         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1077         // start_display_time is required to be 0
1078         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1079         sub->end_display_time -= sub->start_display_time;
1080         sub->start_display_time = 0;
1081         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1082                                                     subtitle_out_max_size, sub);
1083         if (subtitle_out_size < 0) {
1084             fprintf(stderr, "Subtitle encoding failed\n");
1085             exit_program(1);
1086         }
1087
1088         av_init_packet(&pkt);
1089         pkt.stream_index = ost->index;
1090         pkt.data = subtitle_out;
1091         pkt.size = subtitle_out_size;
1092         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1093         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1094             /* XXX: the pts correction is handled here. Maybe handling
1095                it in the codec would be better */
1096             if (i == 0)
1097                 pkt.pts += 90 * sub->start_display_time;
1098             else
1099                 pkt.pts += 90 * sub->end_display_time;
1100         }
1101         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1102     }
1103 }
1104
1105 static int bit_buffer_size= 1024*256;
1106 static uint8_t *bit_buffer= NULL;
1107
1108 static void do_video_resample(OutputStream *ost,
1109                               InputStream *ist,
1110                               AVFrame *in_picture,
1111                               AVFrame **out_picture)
1112 {
1113 #if CONFIG_AVFILTER
1114     *out_picture = in_picture;
1115 #else
1116     AVCodecContext *dec = ist->st->codec;
1117     AVCodecContext *enc = ost->st->codec;
1118     int resample_changed = ost->resample_width   != dec->width  ||
1119                            ost->resample_height  != dec->height ||
1120                            ost->resample_pix_fmt != dec->pix_fmt;
1121
1122     *out_picture = in_picture;
1123     if (resample_changed) {
1124         av_log(NULL, AV_LOG_INFO,
1125                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1126                ist->file_index, ist->st->index,
1127                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1128                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1129         ost->resample_width   = dec->width;
1130         ost->resample_height  = dec->height;
1131         ost->resample_pix_fmt = dec->pix_fmt;
1132     }
1133
1134     ost->video_resample = dec->width   != enc->width  ||
1135                           dec->height  != enc->height ||
1136                           dec->pix_fmt != enc->pix_fmt;
1137
1138     if (ost->video_resample) {
1139         *out_picture = &ost->resample_frame;
1140         if (!ost->img_resample_ctx || resample_changed) {
1141             /* initialize the destination picture */
1142             if (!ost->resample_frame.data[0]) {
1143                 avcodec_get_frame_defaults(&ost->resample_frame);
1144                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1145                                     enc->width, enc->height)) {
1146                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1147                     exit_program(1);
1148                 }
1149             }
1150             /* initialize a new scaler context */
1151             sws_freeContext(ost->img_resample_ctx);
1152             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1153                                                    enc->width, enc->height, enc->pix_fmt,
1154                                                    ost->sws_flags, NULL, NULL, NULL);
1155             if (ost->img_resample_ctx == NULL) {
1156                 fprintf(stderr, "Cannot get resampling context\n");
1157                 exit_program(1);
1158             }
1159         }
1160         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1161               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1162     }
1163 #endif
1164 }
1165
1166
1167 static void do_video_out(AVFormatContext *s,
1168                          OutputStream *ost,
1169                          InputStream *ist,
1170                          AVFrame *in_picture,
1171                          int *frame_size, float quality)
1172 {
1173     int nb_frames, i, ret, format_video_sync;
1174     AVFrame *final_picture;
1175     AVCodecContext *enc;
1176     double sync_ipts;
1177
1178     enc = ost->st->codec;
1179
1180     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1181
1182     /* by default, we output a single frame */
1183     nb_frames = 1;
1184
1185     *frame_size = 0;
1186
1187     format_video_sync = video_sync_method;
1188     if (format_video_sync < 0)
1189         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1190
1191     if (format_video_sync) {
1192         double vdelta = sync_ipts - ost->sync_opts;
1193         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1194         if (vdelta < -1.1)
1195             nb_frames = 0;
1196         else if (format_video_sync == 2) {
1197             if(vdelta<=-0.6){
1198                 nb_frames=0;
1199             }else if(vdelta>0.6)
1200                 ost->sync_opts= lrintf(sync_ipts);
1201         }else if (vdelta > 1.1)
1202             nb_frames = lrintf(vdelta);
1203 //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);
1204         if (nb_frames == 0){
1205             ++nb_frames_drop;
1206             if (verbose>2)
1207                 fprintf(stderr, "*** drop!\n");
1208         }else if (nb_frames > 1) {
1209             nb_frames_dup += nb_frames - 1;
1210             if (verbose>2)
1211                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1212         }
1213     }else
1214         ost->sync_opts= lrintf(sync_ipts);
1215
1216     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1217     if (nb_frames <= 0)
1218         return;
1219
1220     do_video_resample(ost, ist, in_picture, &final_picture);
1221
1222     /* duplicates frame if needed */
1223     for(i=0;i<nb_frames;i++) {
1224         AVPacket pkt;
1225         av_init_packet(&pkt);
1226         pkt.stream_index= ost->index;
1227
1228         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1229             /* raw pictures are written as AVPicture structure to
1230                avoid any copies. We support temporarily the older
1231                method. */
1232             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1233             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1234             pkt.data= (uint8_t *)final_picture;
1235             pkt.size=  sizeof(AVPicture);
1236             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1237             pkt.flags |= AV_PKT_FLAG_KEY;
1238
1239             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1240         } else {
1241             AVFrame big_picture;
1242
1243             big_picture= *final_picture;
1244             /* better than nothing: use input picture interlaced
1245                settings */
1246             big_picture.interlaced_frame = in_picture->interlaced_frame;
1247             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1248                 if(top_field_first == -1)
1249                     big_picture.top_field_first = in_picture->top_field_first;
1250                 else
1251                     big_picture.top_field_first = top_field_first;
1252             }
1253
1254             /* handles same_quant here. This is not correct because it may
1255                not be a global option */
1256             big_picture.quality = quality;
1257             if(!me_threshold)
1258                 big_picture.pict_type = 0;
1259 //            big_picture.pts = AV_NOPTS_VALUE;
1260             big_picture.pts= ost->sync_opts;
1261 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1262 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1263             if (ost->forced_kf_index < ost->forced_kf_count &&
1264                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1265                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1266                 ost->forced_kf_index++;
1267             }
1268             ret = avcodec_encode_video(enc,
1269                                        bit_buffer, bit_buffer_size,
1270                                        &big_picture);
1271             if (ret < 0) {
1272                 fprintf(stderr, "Video encoding failed\n");
1273                 exit_program(1);
1274             }
1275
1276             if(ret>0){
1277                 pkt.data= bit_buffer;
1278                 pkt.size= ret;
1279                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1280                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1281 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1282    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1283    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1284
1285                 if(enc->coded_frame->key_frame)
1286                     pkt.flags |= AV_PKT_FLAG_KEY;
1287                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1288                 *frame_size = ret;
1289                 video_size += ret;
1290                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1291                 //        enc->frame_number-1, ret, enc->pict_type);
1292                 /* if two pass, output log */
1293                 if (ost->logfile && enc->stats_out) {
1294                     fprintf(ost->logfile, "%s", enc->stats_out);
1295                 }
1296             }
1297         }
1298         ost->sync_opts++;
1299         ost->frame_number++;
1300     }
1301 }
1302
1303 static double psnr(double d){
1304     return -10.0*log(d)/log(10.0);
1305 }
1306
1307 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1308                            int frame_size)
1309 {
1310     AVCodecContext *enc;
1311     int frame_number;
1312     double ti1, bitrate, avg_bitrate;
1313
1314     /* this is executed just the first time do_video_stats is called */
1315     if (!vstats_file) {
1316         vstats_file = fopen(vstats_filename, "w");
1317         if (!vstats_file) {
1318             perror("fopen");
1319             exit_program(1);
1320         }
1321     }
1322
1323     enc = ost->st->codec;
1324     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1325         frame_number = ost->frame_number;
1326         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1327         if (enc->flags&CODEC_FLAG_PSNR)
1328             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1329
1330         fprintf(vstats_file,"f_size= %6d ", frame_size);
1331         /* compute pts value */
1332         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1333         if (ti1 < 0.01)
1334             ti1 = 0.01;
1335
1336         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1337         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1338         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1339             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1340         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1341     }
1342 }
1343
1344 static void print_report(OutputFile *output_files,
1345                          OutputStream *ost_table, int nb_ostreams,
1346                          int is_last_report, int64_t timer_start)
1347 {
1348     char buf[1024];
1349     OutputStream *ost;
1350     AVFormatContext *oc;
1351     int64_t total_size;
1352     AVCodecContext *enc;
1353     int frame_number, vid, i;
1354     double bitrate;
1355     int64_t pts = INT64_MAX;
1356     static int64_t last_time = -1;
1357     static int qp_histogram[52];
1358
1359     if (!is_last_report) {
1360         int64_t cur_time;
1361         /* display the report every 0.5 seconds */
1362         cur_time = av_gettime();
1363         if (last_time == -1) {
1364             last_time = cur_time;
1365             return;
1366         }
1367         if ((cur_time - last_time) < 500000)
1368             return;
1369         last_time = cur_time;
1370     }
1371
1372
1373     oc = output_files[0].ctx;
1374
1375     total_size = avio_size(oc->pb);
1376     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1377         total_size= avio_tell(oc->pb);
1378
1379     buf[0] = '\0';
1380     vid = 0;
1381     for(i=0;i<nb_ostreams;i++) {
1382         float q = -1;
1383         ost = &ost_table[i];
1384         enc = ost->st->codec;
1385         if (!ost->st->stream_copy && enc->coded_frame)
1386             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1387         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1388             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1389         }
1390         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1391             float t = (av_gettime()-timer_start) / 1000000.0;
1392
1393             frame_number = ost->frame_number;
1394             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1395                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1396             if(is_last_report)
1397                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1398             if(qp_hist){
1399                 int j;
1400                 int qp = lrintf(q);
1401                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1402                     qp_histogram[qp]++;
1403                 for(j=0; j<32; j++)
1404                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1405             }
1406             if (enc->flags&CODEC_FLAG_PSNR){
1407                 int j;
1408                 double error, error_sum=0;
1409                 double scale, scale_sum=0;
1410                 char type[3]= {'Y','U','V'};
1411                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1412                 for(j=0; j<3; j++){
1413                     if(is_last_report){
1414                         error= enc->error[j];
1415                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1416                     }else{
1417                         error= enc->coded_frame->error[j];
1418                         scale= enc->width*enc->height*255.0*255.0;
1419                     }
1420                     if(j) scale/=4;
1421                     error_sum += error;
1422                     scale_sum += scale;
1423                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1424                 }
1425                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1426             }
1427             vid = 1;
1428         }
1429         /* compute min output value */
1430         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1431                                       ost->st->time_base, AV_TIME_BASE_Q));
1432     }
1433
1434     if (verbose > 0 || is_last_report) {
1435         int hours, mins, secs, us;
1436         secs = pts / AV_TIME_BASE;
1437         us = pts % AV_TIME_BASE;
1438         mins = secs / 60;
1439         secs %= 60;
1440         hours = mins / 60;
1441         mins %= 60;
1442
1443         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1444
1445         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1446                  "size=%8.0fkB time=", total_size / 1024.0);
1447         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1448                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1449                  (100 * us) / AV_TIME_BASE);
1450         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1451                  "bitrate=%6.1fkbits/s", bitrate);
1452
1453         if (nb_frames_dup || nb_frames_drop)
1454           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1455                   nb_frames_dup, nb_frames_drop);
1456
1457         if (verbose >= 0)
1458             fprintf(stderr, "%s    \r", buf);
1459
1460         fflush(stderr);
1461     }
1462
1463     if (is_last_report && verbose >= 0){
1464         int64_t raw= audio_size + video_size + extra_size;
1465         fprintf(stderr, "\n");
1466         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1467                 video_size/1024.0,
1468                 audio_size/1024.0,
1469                 extra_size/1024.0,
1470                 100.0*(total_size - raw)/raw
1471         );
1472     }
1473 }
1474
1475 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1476 {
1477     int fill_char = 0x00;
1478     if (sample_fmt == AV_SAMPLE_FMT_U8)
1479         fill_char = 0x80;
1480     memset(buf, fill_char, size);
1481 }
1482
1483 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1484 {
1485     int i, ret;
1486
1487     for (i = 0; i < nb_ostreams; i++) {
1488         OutputStream   *ost = &ost_table[i];
1489         AVCodecContext *enc = ost->st->codec;
1490         AVFormatContext *os = output_files[ost->file_index].ctx;
1491
1492         if (!ost->encoding_needed)
1493             continue;
1494
1495         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1496             continue;
1497         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1498             continue;
1499
1500         for(;;) {
1501             AVPacket pkt;
1502             int fifo_bytes;
1503             av_init_packet(&pkt);
1504             pkt.stream_index= ost->index;
1505
1506             switch (ost->st->codec->codec_type) {
1507             case AVMEDIA_TYPE_AUDIO:
1508                 fifo_bytes = av_fifo_size(ost->fifo);
1509                 ret = 0;
1510                 /* encode any samples remaining in fifo */
1511                 if (fifo_bytes > 0) {
1512                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1513                     int fs_tmp = enc->frame_size;
1514
1515                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1516                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1517                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1518                     } else { /* pad */
1519                         int frame_bytes = enc->frame_size*osize*enc->channels;
1520                         if (allocated_audio_buf_size < frame_bytes)
1521                             exit_program(1);
1522                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1523                     }
1524
1525                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1526                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1527                                               ost->st->time_base.num, enc->sample_rate);
1528                     enc->frame_size = fs_tmp;
1529                 }
1530                 if (ret <= 0) {
1531                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1532                 }
1533                 if (ret < 0) {
1534                     fprintf(stderr, "Audio encoding failed\n");
1535                     exit_program(1);
1536                 }
1537                 audio_size += ret;
1538                 pkt.flags |= AV_PKT_FLAG_KEY;
1539                 break;
1540             case AVMEDIA_TYPE_VIDEO:
1541                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1542                 if (ret < 0) {
1543                     fprintf(stderr, "Video encoding failed\n");
1544                     exit_program(1);
1545                 }
1546                 video_size += ret;
1547                 if(enc->coded_frame && enc->coded_frame->key_frame)
1548                     pkt.flags |= AV_PKT_FLAG_KEY;
1549                 if (ost->logfile && enc->stats_out) {
1550                     fprintf(ost->logfile, "%s", enc->stats_out);
1551                 }
1552                 break;
1553             default:
1554                 ret=-1;
1555             }
1556
1557             if (ret <= 0)
1558                 break;
1559             pkt.data = bit_buffer;
1560             pkt.size = ret;
1561             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1562                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1563             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1564         }
1565     }
1566 }
1567
1568 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1569 static int output_packet(InputStream *ist, int ist_index,
1570                          OutputStream *ost_table, int nb_ostreams,
1571                          const AVPacket *pkt)
1572 {
1573     AVFormatContext *os;
1574     OutputStream *ost;
1575     int ret, i;
1576     int got_output;
1577     AVFrame picture;
1578     void *buffer_to_free = NULL;
1579     static unsigned int samples_size= 0;
1580     AVSubtitle subtitle, *subtitle_to_free;
1581     int64_t pkt_pts = AV_NOPTS_VALUE;
1582 #if CONFIG_AVFILTER
1583     int frame_available;
1584 #endif
1585     float quality;
1586
1587     AVPacket avpkt;
1588     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1589
1590     if(ist->next_pts == AV_NOPTS_VALUE)
1591         ist->next_pts= ist->pts;
1592
1593     if (pkt == NULL) {
1594         /* EOF handling */
1595         av_init_packet(&avpkt);
1596         avpkt.data = NULL;
1597         avpkt.size = 0;
1598         goto handle_eof;
1599     } else {
1600         avpkt = *pkt;
1601     }
1602
1603     if(pkt->dts != AV_NOPTS_VALUE)
1604         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1605     if(pkt->pts != AV_NOPTS_VALUE)
1606         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1607
1608     //while we have more to decode or while the decoder did output something on EOF
1609     while (avpkt.size > 0 || (!pkt && got_output)) {
1610         uint8_t *data_buf, *decoded_data_buf;
1611         int data_size, decoded_data_size;
1612     handle_eof:
1613         ist->pts= ist->next_pts;
1614
1615         if(avpkt.size && avpkt.size != pkt->size &&
1616            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1617             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1618             ist->showed_multi_packet_warning=1;
1619         }
1620
1621         /* decode the packet if needed */
1622         decoded_data_buf = NULL; /* fail safe */
1623         decoded_data_size= 0;
1624         data_buf  = avpkt.data;
1625         data_size = avpkt.size;
1626         subtitle_to_free = NULL;
1627         if (ist->decoding_needed) {
1628             switch(ist->st->codec->codec_type) {
1629             case AVMEDIA_TYPE_AUDIO:{
1630                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1631                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1632                     av_free(samples);
1633                     samples= av_malloc(samples_size);
1634                 }
1635                 decoded_data_size= samples_size;
1636                     /* XXX: could avoid copy if PCM 16 bits with same
1637                        endianness as CPU */
1638                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1639                                             &avpkt);
1640                 if (ret < 0)
1641                     return ret;
1642                 avpkt.data += ret;
1643                 avpkt.size -= ret;
1644                 data_size   = ret;
1645                 got_output  = decoded_data_size > 0;
1646                 /* Some bug in mpeg audio decoder gives */
1647                 /* decoded_data_size < 0, it seems they are overflows */
1648                 if (!got_output) {
1649                     /* no audio frame */
1650                     continue;
1651                 }
1652                 decoded_data_buf = (uint8_t *)samples;
1653                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1654                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1655                 break;}
1656             case AVMEDIA_TYPE_VIDEO:
1657                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1658                     /* XXX: allocate picture correctly */
1659                     avcodec_get_frame_defaults(&picture);
1660                     avpkt.pts = pkt_pts;
1661                     avpkt.dts = ist->pts;
1662                     pkt_pts = AV_NOPTS_VALUE;
1663
1664                     ret = avcodec_decode_video2(ist->st->codec,
1665                                                 &picture, &got_output, &avpkt);
1666                     quality = same_quant ? picture.quality : 0;
1667                     if (ret < 0)
1668                         return ret;
1669                     if (!got_output) {
1670                         /* no picture yet */
1671                         goto discard_packet;
1672                     }
1673                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1674                     if (ist->st->codec->time_base.num != 0) {
1675                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1676                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1677                                           ist->st->codec->time_base.num * ticks) /
1678                             ist->st->codec->time_base.den;
1679                     }
1680                     avpkt.size = 0;
1681                     buffer_to_free = NULL;
1682                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1683                     break;
1684             case AVMEDIA_TYPE_SUBTITLE:
1685                 ret = avcodec_decode_subtitle2(ist->st->codec,
1686                                                &subtitle, &got_output, &avpkt);
1687                 if (ret < 0)
1688                     return ret;
1689                 if (!got_output) {
1690                     goto discard_packet;
1691                 }
1692                 subtitle_to_free = &subtitle;
1693                 avpkt.size = 0;
1694                 break;
1695             default:
1696                 return -1;
1697             }
1698         } else {
1699             switch(ist->st->codec->codec_type) {
1700             case AVMEDIA_TYPE_AUDIO:
1701                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1702                     ist->st->codec->sample_rate;
1703                 break;
1704             case AVMEDIA_TYPE_VIDEO:
1705                 if (ist->st->codec->time_base.num != 0) {
1706                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1707                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1708                                       ist->st->codec->time_base.num * ticks) /
1709                         ist->st->codec->time_base.den;
1710                 }
1711                 break;
1712             }
1713             avpkt.size = 0;
1714         }
1715
1716 #if CONFIG_AVFILTER
1717         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1718         if (start_time == 0 || ist->pts >= start_time) {
1719             for(i=0;i<nb_ostreams;i++) {
1720                 ost = &ost_table[i];
1721                 if (ost->input_video_filter && ost->source_index == ist_index) {
1722                     if (!picture.sample_aspect_ratio.num)
1723                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1724                     picture.pts = ist->pts;
1725
1726                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1727                 }
1728             }
1729         }
1730 #endif
1731
1732         // preprocess audio (volume)
1733         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1734             if (audio_volume != 256) {
1735                 short *volp;
1736                 volp = samples;
1737                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1738                     int v = ((*volp) * audio_volume + 128) >> 8;
1739                     *volp++ = av_clip_int16(v);
1740                 }
1741             }
1742         }
1743
1744         /* frame rate emulation */
1745         if (rate_emu) {
1746             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1747             int64_t now = av_gettime() - ist->start;
1748             if (pts > now)
1749                 usleep(pts - now);
1750         }
1751         /* if output time reached then transcode raw format,
1752            encode packets and output them */
1753         for (i = 0; i < nb_ostreams; i++) {
1754             OutputFile *of = &output_files[ost_table[i].file_index];
1755             int frame_size;
1756
1757             ost = &ost_table[i];
1758             if (ost->source_index != ist_index)
1759                 continue;
1760
1761             if (of->start_time && ist->pts < of->start_time)
1762                 continue;
1763
1764             if (of->recording_time != INT64_MAX &&
1765                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1766                               (AVRational){1, 1000000}) >= 0) {
1767                 ost->is_past_recording_time = 1;
1768                 continue;
1769             }
1770
1771 #if CONFIG_AVFILTER
1772             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1773                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1774             while (frame_available) {
1775                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1776                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1777                     if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1778                         goto cont;
1779                     if (ost->picref) {
1780                         avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1781                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1782                     }
1783                 }
1784 #endif
1785                 os = output_files[ost->file_index].ctx;
1786
1787                 /* set the input output pts pairs */
1788                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1789
1790                 if (ost->encoding_needed) {
1791                     av_assert0(ist->decoding_needed);
1792                     switch(ost->st->codec->codec_type) {
1793                     case AVMEDIA_TYPE_AUDIO:
1794                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1795                         break;
1796                     case AVMEDIA_TYPE_VIDEO:
1797 #if CONFIG_AVFILTER
1798                         if (ost->picref->video && !ost->frame_aspect_ratio)
1799                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1800 #endif
1801                         do_video_out(os, ost, ist, &picture, &frame_size,
1802                                         same_quant ? quality : ost->st->codec->global_quality);
1803                         if (vstats_filename && frame_size)
1804                             do_video_stats(os, ost, frame_size);
1805                         break;
1806                     case AVMEDIA_TYPE_SUBTITLE:
1807                         do_subtitle_out(os, ost, ist, &subtitle,
1808                                         pkt->pts);
1809                         break;
1810                     default:
1811                         abort();
1812                     }
1813                 } else {
1814                     AVFrame avframe; //FIXME/XXX remove this
1815                     AVPicture pict;
1816                     AVPacket opkt;
1817                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1818                     av_init_packet(&opkt);
1819
1820                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1821 #if !CONFIG_AVFILTER
1822                         continue;
1823 #else
1824                         goto cont;
1825 #endif
1826
1827                     /* no reencoding needed : output the packet directly */
1828                     /* force the input stream PTS */
1829
1830                     avcodec_get_frame_defaults(&avframe);
1831                     ost->st->codec->coded_frame= &avframe;
1832                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1833
1834                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1835                         audio_size += data_size;
1836                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1837                         video_size += data_size;
1838                         ost->sync_opts++;
1839                     }
1840
1841                     opkt.stream_index= ost->index;
1842                     if(pkt->pts != AV_NOPTS_VALUE)
1843                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1844                     else
1845                         opkt.pts= AV_NOPTS_VALUE;
1846
1847                     if (pkt->dts == AV_NOPTS_VALUE)
1848                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1849                     else
1850                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1851                     opkt.dts -= ost_tb_start_time;
1852
1853                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1854                     opkt.flags= pkt->flags;
1855
1856                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1857                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1858                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1859                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1860                        ) {
1861                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1862                             opkt.destruct= av_destruct_packet;
1863                     } else {
1864                         opkt.data = data_buf;
1865                         opkt.size = data_size;
1866                     }
1867
1868                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1869                         /* store AVPicture in AVPacket, as expected by the output format */
1870                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1871                         opkt.data = (uint8_t *)&pict;
1872                         opkt.size = sizeof(AVPicture);
1873                         opkt.flags |= AV_PKT_FLAG_KEY;
1874                     }
1875                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1876                     ost->st->codec->frame_number++;
1877                     ost->frame_number++;
1878                     av_free_packet(&opkt);
1879                 }
1880 #if CONFIG_AVFILTER
1881                 cont:
1882                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1883                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1884                 avfilter_unref_buffer(ost->picref);
1885             }
1886 #endif
1887         }
1888
1889         av_free(buffer_to_free);
1890         /* XXX: allocate the subtitles in the codec ? */
1891         if (subtitle_to_free) {
1892             avsubtitle_free(subtitle_to_free);
1893             subtitle_to_free = NULL;
1894         }
1895     }
1896  discard_packet:
1897
1898     return 0;
1899 }
1900
1901 static void print_sdp(OutputFile *output_files, int n)
1902 {
1903     char sdp[2048];
1904     int i;
1905     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1906
1907     if (!avc)
1908         exit_program(1);
1909     for (i = 0; i < n; i++)
1910         avc[i] = output_files[i].ctx;
1911
1912     av_sdp_create(avc, n, sdp, sizeof(sdp));
1913     printf("SDP:\n%s\n", sdp);
1914     fflush(stdout);
1915     av_freep(&avc);
1916 }
1917
1918 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1919                              char *error, int error_len)
1920 {
1921     InputStream *ist = &input_streams[ist_index];
1922     if (ist->decoding_needed) {
1923         AVCodec *codec = ist->dec;
1924         if (!codec) {
1925             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d.%d",
1926                     avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1927             return AVERROR(EINVAL);
1928         }
1929         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1930             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1931                     ist->file_index, ist->st->index);
1932             return AVERROR(EINVAL);
1933         }
1934         assert_codec_experimental(ist->st->codec, 0);
1935         assert_avoptions(ist->opts);
1936     }
1937
1938     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1939     ist->next_pts = AV_NOPTS_VALUE;
1940     ist->is_start = 1;
1941
1942     return 0;
1943 }
1944
1945 static int transcode_init(OutputFile *output_files,
1946                           int nb_output_files,
1947                           InputFile *input_files,
1948                           int nb_input_files)
1949 {
1950     int ret = 0, i;
1951     AVFormatContext *os;
1952     AVCodecContext *codec, *icodec;
1953     OutputStream *ost;
1954     InputStream *ist;
1955     char error[1024];
1956     int want_sdp = 1;
1957
1958     if (rate_emu)
1959         for (i = 0; i < nb_input_streams; i++)
1960             input_streams[i].start = av_gettime();
1961
1962     /* output stream init */
1963     for(i=0;i<nb_output_files;i++) {
1964         os = output_files[i].ctx;
1965         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1966             av_dump_format(os, i, os->filename, 1);
1967             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1968             return AVERROR(EINVAL);
1969         }
1970     }
1971
1972     /* for each output stream, we compute the right encoding parameters */
1973     for (i = 0; i < nb_output_streams; i++) {
1974         ost = &output_streams[i];
1975         os = output_files[ost->file_index].ctx;
1976         ist = &input_streams[ost->source_index];
1977
1978         codec = ost->st->codec;
1979         icodec = ist->st->codec;
1980
1981         ost->st->disposition = ist->st->disposition;
1982         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1983         codec->chroma_sample_location = icodec->chroma_sample_location;
1984
1985         if (ost->st->stream_copy) {
1986             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1987
1988             if (extra_size > INT_MAX) {
1989                 return AVERROR(EINVAL);
1990             }
1991
1992             /* if stream_copy is selected, no need to decode or encode */
1993             codec->codec_id = icodec->codec_id;
1994             codec->codec_type = icodec->codec_type;
1995
1996             if(!codec->codec_tag){
1997                 if(   !os->oformat->codec_tag
1998                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1999                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2000                     codec->codec_tag = icodec->codec_tag;
2001             }
2002
2003             codec->bit_rate = icodec->bit_rate;
2004             codec->rc_max_rate    = icodec->rc_max_rate;
2005             codec->rc_buffer_size = icodec->rc_buffer_size;
2006             codec->extradata= av_mallocz(extra_size);
2007             if (!codec->extradata) {
2008                 return AVERROR(ENOMEM);
2009             }
2010             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2011             codec->extradata_size= icodec->extradata_size;
2012
2013             codec->time_base = ist->st->time_base;
2014             if(!strcmp(os->oformat->name, "avi")) {
2015                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2016                     codec->time_base = icodec->time_base;
2017                     codec->time_base.num *= icodec->ticks_per_frame;
2018                     codec->time_base.den *= 2;
2019                 }
2020             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2021                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2022                     codec->time_base = icodec->time_base;
2023                     codec->time_base.num *= icodec->ticks_per_frame;
2024                 }
2025             }
2026             av_reduce(&codec->time_base.num, &codec->time_base.den,
2027                         codec->time_base.num, codec->time_base.den, INT_MAX);
2028
2029             switch(codec->codec_type) {
2030             case AVMEDIA_TYPE_AUDIO:
2031                 if(audio_volume != 256) {
2032                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2033                     exit_program(1);
2034                 }
2035                 codec->channel_layout = icodec->channel_layout;
2036                 codec->sample_rate = icodec->sample_rate;
2037                 codec->channels = icodec->channels;
2038                 codec->frame_size = icodec->frame_size;
2039                 codec->audio_service_type = icodec->audio_service_type;
2040                 codec->block_align= icodec->block_align;
2041                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2042                     codec->block_align= 0;
2043                 if(codec->codec_id == CODEC_ID_AC3)
2044                     codec->block_align= 0;
2045                 break;
2046             case AVMEDIA_TYPE_VIDEO:
2047                 codec->pix_fmt = icodec->pix_fmt;
2048                 codec->width = icodec->width;
2049                 codec->height = icodec->height;
2050                 codec->has_b_frames = icodec->has_b_frames;
2051                 if (!codec->sample_aspect_ratio.num) {
2052                     codec->sample_aspect_ratio =
2053                     ost->st->sample_aspect_ratio =
2054                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2055                         ist->st->codec->sample_aspect_ratio.num ?
2056                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2057                 }
2058                 break;
2059             case AVMEDIA_TYPE_SUBTITLE:
2060                 codec->width = icodec->width;
2061                 codec->height = icodec->height;
2062                 break;
2063             case AVMEDIA_TYPE_DATA:
2064                 break;
2065             default:
2066                 abort();
2067             }
2068         } else {
2069             if (!ost->enc)
2070                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2071             switch(codec->codec_type) {
2072             case AVMEDIA_TYPE_AUDIO:
2073                 ost->fifo= av_fifo_alloc(1024);
2074                 if (!ost->fifo) {
2075                     return AVERROR(ENOMEM);
2076                 }
2077                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2078                 if (!codec->sample_rate) {
2079                     codec->sample_rate = icodec->sample_rate;
2080                 }
2081                 choose_sample_rate(ost->st, ost->enc);
2082                 codec->time_base = (AVRational){1, codec->sample_rate};
2083                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2084                     codec->sample_fmt = icodec->sample_fmt;
2085                 choose_sample_fmt(ost->st, ost->enc);
2086                 if (!codec->channels) {
2087                     codec->channels = icodec->channels;
2088                     codec->channel_layout = icodec->channel_layout;
2089                 }
2090                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2091                     codec->channel_layout = 0;
2092                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2093                 icodec->request_channels = codec->channels;
2094                 ist->decoding_needed = 1;
2095                 ost->encoding_needed = 1;
2096                 ost->resample_sample_fmt  = icodec->sample_fmt;
2097                 ost->resample_sample_rate = icodec->sample_rate;
2098                 ost->resample_channels    = icodec->channels;
2099                 break;
2100             case AVMEDIA_TYPE_VIDEO:
2101                 if (codec->pix_fmt == PIX_FMT_NONE)
2102                     codec->pix_fmt = icodec->pix_fmt;
2103                 choose_pixel_fmt(ost->st, ost->enc);
2104
2105                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2106                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2107                     exit_program(1);
2108                 }
2109
2110                 if (!codec->width || !codec->height) {
2111                     codec->width  = icodec->width;
2112                     codec->height = icodec->height;
2113                 }
2114
2115                 ost->video_resample = codec->width   != icodec->width  ||
2116                                       codec->height  != icodec->height ||
2117                                       codec->pix_fmt != icodec->pix_fmt;
2118                 if (ost->video_resample) {
2119                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2120                 }
2121
2122                 ost->resample_height = icodec->height;
2123                 ost->resample_width  = icodec->width;
2124                 ost->resample_pix_fmt= icodec->pix_fmt;
2125                 ost->encoding_needed = 1;
2126                 ist->decoding_needed = 1;
2127
2128                 if (!ost->frame_rate.num)
2129                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2130                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2131                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2132                     ost->frame_rate = ost->enc->supported_framerates[idx];
2133                 }
2134                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2135                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2136                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2137                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2138                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2139                 }
2140
2141 #if CONFIG_AVFILTER
2142                 if (configure_video_filters(ist, ost)) {
2143                     fprintf(stderr, "Error opening filters!\n");
2144                     exit(1);
2145                 }
2146 #endif
2147                 break;
2148             case AVMEDIA_TYPE_SUBTITLE:
2149                 ost->encoding_needed = 1;
2150                 ist->decoding_needed = 1;
2151                 break;
2152             default:
2153                 abort();
2154                 break;
2155             }
2156             /* two pass mode */
2157             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2158                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2159                 char logfilename[1024];
2160                 FILE *f;
2161
2162                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2163                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2164                          i);
2165                 if (codec->flags & CODEC_FLAG_PASS1) {
2166                     f = fopen(logfilename, "wb");
2167                     if (!f) {
2168                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2169                         exit_program(1);
2170                     }
2171                     ost->logfile = f;
2172                 } else {
2173                     char  *logbuffer;
2174                     size_t logbuffer_size;
2175                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2176                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2177                         exit_program(1);
2178                     }
2179                     codec->stats_in = logbuffer;
2180                 }
2181             }
2182         }
2183         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2184             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2185             int size= codec->width * codec->height;
2186             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2187         }
2188     }
2189
2190     if (!bit_buffer)
2191         bit_buffer = av_malloc(bit_buffer_size);
2192     if (!bit_buffer) {
2193         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2194                 bit_buffer_size);
2195         return AVERROR(ENOMEM);
2196     }
2197
2198     /* open each encoder */
2199     for (i = 0; i < nb_output_streams; i++) {
2200         ost = &output_streams[i];
2201         if (ost->encoding_needed) {
2202             AVCodec *codec = ost->enc;
2203             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2204             if (!codec) {
2205                 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d.%d",
2206                          avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2207                 ret = AVERROR(EINVAL);
2208                 goto dump_format;
2209             }
2210             if (dec->subtitle_header) {
2211                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2212                 if (!ost->st->codec->subtitle_header) {
2213                     ret = AVERROR(ENOMEM);
2214                     goto dump_format;
2215                 }
2216                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2217                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2218             }
2219             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2220                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2221                         ost->file_index, ost->index);
2222                 ret = AVERROR(EINVAL);
2223                 goto dump_format;
2224             }
2225             assert_codec_experimental(ost->st->codec, 1);
2226             assert_avoptions(ost->opts);
2227             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2228                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2229                                              "It takes bits/s as argument, not kbits/s\n");
2230             extra_size += ost->st->codec->extradata_size;
2231         }
2232     }
2233
2234     /* init input streams */
2235     for (i = 0; i < nb_input_streams; i++)
2236         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2237             goto dump_format;
2238
2239     /* open files and write file headers */
2240     for (i = 0; i < nb_output_files; i++) {
2241         os = output_files[i].ctx;
2242         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2243             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2244             ret = AVERROR(EINVAL);
2245             goto dump_format;
2246         }
2247 //        assert_avoptions(output_files[i].opts);
2248         if (strcmp(os->oformat->name, "rtp")) {
2249             want_sdp = 0;
2250         }
2251     }
2252
2253  dump_format:
2254     /* dump the file output parameters - cannot be done before in case
2255        of stream copy */
2256     for(i=0;i<nb_output_files;i++) {
2257         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2258     }
2259
2260     /* dump the stream mapping */
2261     if (verbose >= 0) {
2262         fprintf(stderr, "Stream mapping:\n");
2263         for (i = 0; i < nb_output_streams;i ++) {
2264             ost = &output_streams[i];
2265             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2266                     input_streams[ost->source_index].file_index,
2267                     input_streams[ost->source_index].st->index,
2268                     ost->file_index,
2269                     ost->index);
2270             if (ost->sync_ist != &input_streams[ost->source_index])
2271                 fprintf(stderr, " [sync #%d.%d]",
2272                         ost->sync_ist->file_index,
2273                         ost->sync_ist->st->index);
2274             if (ost->st->stream_copy)
2275                 fprintf(stderr, " (copy)");
2276             else
2277                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2278                         input_streams[ost->source_index].dec->name : "?",
2279                         ost->enc ? ost->enc->name : "?");
2280             fprintf(stderr, "\n");
2281         }
2282     }
2283
2284     if (ret) {
2285         fprintf(stderr, "%s\n", error);
2286         return ret;
2287     }
2288
2289     if (want_sdp) {
2290         print_sdp(output_files, nb_output_files);
2291     }
2292
2293     return 0;
2294 }
2295
2296 /*
2297  * The following code is the main loop of the file converter
2298  */
2299 static int transcode(OutputFile *output_files,
2300                      int nb_output_files,
2301                      InputFile *input_files,
2302                      int nb_input_files)
2303 {
2304     int ret, i;
2305     AVFormatContext *is, *os;
2306     OutputStream *ost;
2307     InputStream *ist;
2308     uint8_t *no_packet;
2309     int no_packet_count=0;
2310     int64_t timer_start;
2311     int key;
2312
2313     if (!(no_packet = av_mallocz(nb_input_files)))
2314         exit_program(1);
2315
2316     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2317     if (ret < 0)
2318         goto fail;
2319
2320     if (!using_stdin) {
2321         if(verbose >= 0)
2322             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2323         avio_set_interrupt_cb(decode_interrupt_cb);
2324     }
2325     term_init();
2326
2327     timer_start = av_gettime();
2328
2329     for(; received_sigterm == 0;) {
2330         int file_index, ist_index;
2331         AVPacket pkt;
2332         int64_t ipts_min;
2333         double opts_min;
2334
2335         ipts_min= INT64_MAX;
2336         opts_min= 1e100;
2337         /* if 'q' pressed, exits */
2338         if (!using_stdin) {
2339             if (q_pressed)
2340                 break;
2341             /* read_key() returns 0 on EOF */
2342             key = read_key();
2343             if (key == 'q')
2344                 break;
2345             if (key == '+') verbose++;
2346             if (key == '-') verbose--;
2347             if (key == 's') qp_hist     ^= 1;
2348             if (key == 'h'){
2349                 if (do_hex_dump){
2350                     do_hex_dump = do_pkt_dump = 0;
2351                 } else if(do_pkt_dump){
2352                     do_hex_dump = 1;
2353                 } else
2354                     do_pkt_dump = 1;
2355                 av_log_set_level(AV_LOG_DEBUG);
2356             }
2357 #if CONFIG_AVFILTER
2358             if (key == 'c' || key == 'C'){
2359                 char ret[4096], target[64], cmd[256], arg[256]={0};
2360                 double ts;
2361                 int k;
2362                 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2363                 i=0;
2364                 while((k=read_key()) !='\n' && k!='\r' && i<sizeof(ret)-1)
2365                     if(k>0) ret[i++]= k;
2366                 ret[i]= 0;
2367                 if(k>0 && sscanf(ret, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &ts, cmd, arg) >= 3){
2368                     for(i=0;i<nb_output_streams;i++) {
2369                         int r;
2370                         ost = &output_streams[i];
2371                         if(ost->graph){
2372                             if(ts<0){
2373                                 r= avfilter_graph_send_command(ost->graph, target, cmd, arg, ret, sizeof(ret), key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2374                                 fprintf(stderr, "Command reply for %d: %d, %s\n", i, r, ret);
2375                             }else{
2376                                 r= avfilter_graph_queue_command(ost->graph, target, cmd, arg, 0, ts);
2377                             }
2378                         }
2379                     }
2380                 }else{
2381                     fprintf(stderr, "Parse error\n");
2382                 }
2383             }
2384 #endif
2385             if (key == 'd' || key == 'D'){
2386                 int debug=0;
2387                 if(key == 'D') {
2388                     debug = input_streams[0].st->codec->debug<<1;
2389                     if(!debug) debug = 1;
2390                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2391                         debug += debug;
2392                 }else
2393                     scanf("%d", &debug);
2394                 for(i=0;i<nb_input_streams;i++) {
2395                     input_streams[i].st->codec->debug = debug;
2396                 }
2397                 for(i=0;i<nb_output_streams;i++) {
2398                     ost = &output_streams[i];
2399                     ost->st->codec->debug = debug;
2400                 }
2401                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2402                 fprintf(stderr,"debug=%d\n", debug);
2403             }
2404             if (key == '?'){
2405                 fprintf(stderr, "key    function\n"
2406                                 "?      show this help\n"
2407                                 "+      increase verbosity\n"
2408                                 "-      decrease verbosity\n"
2409                                 "c      Send command to filtergraph\n"
2410                                 "D      cycle through available debug modes\n"
2411                                 "h      dump packets/hex press to cycle through the 3 states\n"
2412                                 "q      quit\n"
2413                                 "s      Show QP histogram\n"
2414                 );
2415             }
2416         }
2417
2418         /* select the stream that we must read now by looking at the
2419            smallest output pts */
2420         file_index = -1;
2421         for (i = 0; i < nb_output_streams; i++) {
2422             OutputFile *of;
2423             int64_t ipts;
2424             double  opts;
2425             ost = &output_streams[i];
2426             of = &output_files[ost->file_index];
2427             os = output_files[ost->file_index].ctx;
2428             ist = &input_streams[ost->source_index];
2429             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2430                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2431                 continue;
2432             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2433             ipts = ist->pts;
2434             if (!input_files[ist->file_index].eof_reached){
2435                 if(ipts < ipts_min) {
2436                     ipts_min = ipts;
2437                     if(input_sync ) file_index = ist->file_index;
2438                 }
2439                 if(opts < opts_min) {
2440                     opts_min = opts;
2441                     if(!input_sync) file_index = ist->file_index;
2442                 }
2443             }
2444             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2445                 file_index= -1;
2446                 break;
2447             }
2448         }
2449         /* if none, if is finished */
2450         if (file_index < 0) {
2451             if(no_packet_count){
2452                 no_packet_count=0;
2453                 memset(no_packet, 0, nb_input_files);
2454                 usleep(10000);
2455                 continue;
2456             }
2457             break;
2458         }
2459
2460         /* read a frame from it and output it in the fifo */
2461         is = input_files[file_index].ctx;
2462         ret= av_read_frame(is, &pkt);
2463         if(ret == AVERROR(EAGAIN)){
2464             no_packet[file_index]=1;
2465             no_packet_count++;
2466             continue;
2467         }
2468         if (ret < 0) {
2469             input_files[file_index].eof_reached = 1;
2470             if (opt_shortest)
2471                 break;
2472             else
2473                 continue;
2474         }
2475
2476         no_packet_count=0;
2477         memset(no_packet, 0, nb_input_files);
2478
2479         if (do_pkt_dump) {
2480             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2481                              is->streams[pkt.stream_index]);
2482         }
2483         /* the following test is needed in case new streams appear
2484            dynamically in stream : we ignore them */
2485         if (pkt.stream_index >= input_files[file_index].nb_streams)
2486             goto discard_packet;
2487         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2488         ist = &input_streams[ist_index];
2489         if (ist->discard)
2490             goto discard_packet;
2491
2492         if (pkt.dts != AV_NOPTS_VALUE)
2493             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2494         if (pkt.pts != AV_NOPTS_VALUE)
2495             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2496
2497         if (ist->ts_scale) {
2498             if(pkt.pts != AV_NOPTS_VALUE)
2499                 pkt.pts *= ist->ts_scale;
2500             if(pkt.dts != AV_NOPTS_VALUE)
2501                 pkt.dts *= ist->ts_scale;
2502         }
2503
2504 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2505         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2506             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2507             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2508             int64_t delta= pkt_dts - ist->next_pts;
2509             if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2510                 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2511                  ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2512                 pkt_dts+1<ist->pts)&& !copy_ts){
2513                 input_files[ist->file_index].ts_offset -= delta;
2514                 if (verbose > 2)
2515                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2516                             delta, input_files[ist->file_index].ts_offset);
2517                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2518                 if(pkt.pts != AV_NOPTS_VALUE)
2519                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2520             }
2521         }
2522
2523         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2524         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2525
2526             if (verbose >= 0)
2527                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2528                         ist->file_index, ist->st->index);
2529             if (exit_on_error)
2530                 exit_program(1);
2531             av_free_packet(&pkt);
2532             continue;
2533         }
2534
2535     discard_packet:
2536         av_free_packet(&pkt);
2537
2538         /* dump report by using the output first video and audio streams */
2539         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2540     }
2541
2542     /* at the end of stream, we must flush the decoder buffers */
2543     for (i = 0; i < nb_input_streams; i++) {
2544         ist = &input_streams[i];
2545         if (ist->decoding_needed) {
2546             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2547         }
2548     }
2549     flush_encoders(output_streams, nb_output_streams);
2550
2551     term_exit();
2552
2553     /* write the trailer if needed and close file */
2554     for(i=0;i<nb_output_files;i++) {
2555         os = output_files[i].ctx;
2556         av_write_trailer(os);
2557     }
2558
2559     /* dump report by using the first video and audio streams */
2560     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2561
2562     /* close each encoder */
2563     for (i = 0; i < nb_output_streams; i++) {
2564         ost = &output_streams[i];
2565         if (ost->encoding_needed) {
2566             av_freep(&ost->st->codec->stats_in);
2567             avcodec_close(ost->st->codec);
2568         }
2569 #if CONFIG_AVFILTER
2570         avfilter_graph_free(&ost->graph);
2571 #endif
2572     }
2573
2574     /* close each decoder */
2575     for (i = 0; i < nb_input_streams; i++) {
2576         ist = &input_streams[i];
2577         if (ist->decoding_needed) {
2578             avcodec_close(ist->st->codec);
2579         }
2580     }
2581
2582     /* finished ! */
2583     ret = 0;
2584
2585  fail:
2586     av_freep(&bit_buffer);
2587     av_freep(&no_packet);
2588
2589     if (output_streams) {
2590         for (i = 0; i < nb_output_streams; i++) {
2591             ost = &output_streams[i];
2592             if (ost) {
2593                 if (ost->st->stream_copy)
2594                     av_freep(&ost->st->codec->extradata);
2595                 if (ost->logfile) {
2596                     fclose(ost->logfile);
2597                     ost->logfile = NULL;
2598                 }
2599                 av_fifo_free(ost->fifo); /* works even if fifo is not
2600                                              initialized but set to zero */
2601                 av_freep(&ost->st->codec->subtitle_header);
2602                 av_free(ost->resample_frame.data[0]);
2603                 av_free(ost->forced_kf_pts);
2604                 if (ost->video_resample)
2605                     sws_freeContext(ost->img_resample_ctx);
2606                 if (ost->resample)
2607                     audio_resample_close(ost->resample);
2608                 if (ost->reformat_ctx)
2609                     av_audio_convert_free(ost->reformat_ctx);
2610                 av_dict_free(&ost->opts);
2611             }
2612         }
2613     }
2614     return ret;
2615 }
2616
2617 static int opt_format(const char *opt, const char *arg)
2618 {
2619     last_asked_format = arg;
2620     return 0;
2621 }
2622
2623 static int opt_video_rc_override_string(const char *opt, const char *arg)
2624 {
2625     video_rc_override_string = arg;
2626     return 0;
2627 }
2628
2629 static int opt_me_threshold(const char *opt, const char *arg)
2630 {
2631     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2632     return 0;
2633 }
2634
2635 static int opt_verbose(const char *opt, const char *arg)
2636 {
2637     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2638     return 0;
2639 }
2640
2641 static int opt_frame_rate(const char *opt, const char *arg)
2642 {
2643     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2644         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2645         exit_program(1);
2646     }
2647     return 0;
2648 }
2649
2650 static int opt_frame_crop(const char *opt, const char *arg)
2651 {
2652     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2653     return AVERROR(EINVAL);
2654 }
2655
2656 static int opt_frame_size(const char *opt, const char *arg)
2657 {
2658     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2659         fprintf(stderr, "Incorrect frame size\n");
2660         return AVERROR(EINVAL);
2661     }
2662     return 0;
2663 }
2664
2665 static int opt_pad(const char *opt, const char *arg) {
2666     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2667     return -1;
2668 }
2669
2670 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2671 {
2672     if (strcmp(arg, "list")) {
2673         frame_pix_fmt = av_get_pix_fmt(arg);
2674         if (frame_pix_fmt == PIX_FMT_NONE) {
2675             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2676             return AVERROR(EINVAL);
2677         }
2678     } else {
2679         opt_pix_fmts(NULL, NULL);
2680         exit_program(0);
2681     }
2682     return 0;
2683 }
2684
2685 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2686 {
2687     int x = 0, y = 0;
2688     double ar = 0;
2689     const char *p;
2690     char *end;
2691
2692     p = strchr(arg, ':');
2693     if (p) {
2694         x = strtol(arg, &end, 10);
2695         if (end == p)
2696             y = strtol(end+1, &end, 10);
2697         if (x > 0 && y > 0)
2698             ar = (double)x / (double)y;
2699     } else
2700         ar = strtod(arg, NULL);
2701
2702     if (!ar) {
2703         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2704         return AVERROR(EINVAL);
2705     }
2706     frame_aspect_ratio = ar;
2707     return 0;
2708 }
2709
2710 static int opt_metadata(const char *opt, const char *arg)
2711 {
2712     char *mid= strchr(arg, '=');
2713
2714     if(!mid){
2715         fprintf(stderr, "Missing =\n");
2716         exit_program(1);
2717     }
2718     *mid++= 0;
2719
2720     av_dict_set(&metadata, arg, mid, 0);
2721
2722     return 0;
2723 }
2724
2725 static int opt_qscale(const char *opt, const char *arg)
2726 {
2727     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2728     if (video_qscale <= 0 || video_qscale > 255) {
2729         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2730         return AVERROR(EINVAL);
2731     }
2732     return 0;
2733 }
2734
2735 static int opt_top_field_first(const char *opt, const char *arg)
2736 {
2737     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2738     return opt_default(opt, arg);
2739 }
2740
2741 static int opt_thread_count(const char *opt, const char *arg)
2742 {
2743     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2744 #if !HAVE_THREADS
2745     if (verbose >= 0)
2746         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2747 #endif
2748     return 0;
2749 }
2750
2751 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2752 {
2753     if (strcmp(arg, "list")) {
2754         audio_sample_fmt = av_get_sample_fmt(arg);
2755         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2756             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2757             return AVERROR(EINVAL);
2758         }
2759     } else {
2760         int i;
2761         char fmt_str[128];
2762         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2763             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2764         exit_program(0);
2765     }
2766     return 0;
2767 }
2768
2769 static int opt_audio_rate(const char *opt, const char *arg)
2770 {
2771     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2772     return 0;
2773 }
2774
2775 static int opt_audio_channels(const char *opt, const char *arg)
2776 {
2777     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2778     return 0;
2779 }
2780
2781 static int opt_video_channel(const char *opt, const char *arg)
2782 {
2783     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2784     return opt_default("channel", arg);
2785 }
2786
2787 static int opt_video_standard(const char *opt, const char *arg)
2788 {
2789     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2790     return opt_default("standard", arg);
2791 }
2792
2793 static int opt_codec(const char *opt, const char *arg)
2794 {
2795     switch(opt[strlen(opt)-1]){
2796     case 'a':    audio_codec_name = arg; break;
2797     case 'v':    video_codec_name = arg; break;
2798     case 's': subtitle_codec_name = arg; break;
2799     }
2800
2801     return av_dict_set(&codec_names, opt, arg, 0);
2802 }
2803
2804 static int opt_audio_codec(const char *opt, const char *arg)
2805 {
2806     return opt_codec("codec:a", arg);
2807 }
2808
2809 static int opt_video_codec(const char *opt, const char *arg)
2810 {
2811     return opt_codec("codec:v", arg);
2812 }
2813
2814 static int opt_subtitle_codec(const char *opt, const char *arg)
2815 {
2816     return opt_codec("codec:s", arg);
2817 }
2818
2819 static int opt_data_codec(const char *opt, const char *arg)
2820 {
2821     return opt_codec("codec:d", arg);
2822 }
2823
2824 static int opt_codec_tag(const char *opt, const char *arg)
2825 {
2826     char *tail;
2827     uint32_t *codec_tag;
2828
2829     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2830                 !strcmp(opt, "vtag") ? &video_codec_tag :
2831                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2832     if (!codec_tag)
2833         return -1;
2834
2835     *codec_tag = strtol(arg, &tail, 0);
2836     if (!tail || *tail)
2837         *codec_tag = AV_RL32(arg);
2838
2839     return 0;
2840 }
2841
2842 static int opt_map(const char *opt, const char *arg)
2843 {
2844     StreamMap *m = NULL;
2845     int i, negative = 0, file_idx;
2846     int sync_file_idx = -1, sync_stream_idx;
2847     char *p, *sync;
2848     char *map;
2849
2850     if (*arg == '-') {
2851         negative = 1;
2852         arg++;
2853     }
2854     map = av_strdup(arg);
2855
2856     /* parse sync stream first, just pick first matching stream */
2857     if (sync = strchr(map, ',')) {
2858         *sync = 0;
2859         sync_file_idx = strtol(sync + 1, &sync, 0);
2860         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2861             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2862             exit_program(1);
2863         }
2864         if (*sync)
2865             sync++;
2866         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2867             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2868                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2869                 sync_stream_idx = i;
2870                 break;
2871             }
2872         if (i == input_files[sync_file_idx].nb_streams) {
2873             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2874                                        "match any streams.\n", arg);
2875             exit_program(1);
2876         }
2877     }
2878
2879
2880     file_idx = strtol(map, &p, 0);
2881     if (file_idx >= nb_input_files || file_idx < 0) {
2882         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2883         exit_program(1);
2884     }
2885     if (negative)
2886         /* disable some already defined maps */
2887         for (i = 0; i < nb_stream_maps; i++) {
2888             m = &stream_maps[i];
2889             if (check_stream_specifier(input_files[m->file_index].ctx,
2890                                        input_files[m->file_index].ctx->streams[m->stream_index],
2891                                        *p == ':' ? p + 1 : p) > 0)
2892                 m->disabled = 1;
2893         }
2894     else
2895         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2896             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2897                         *p == ':' ? p + 1 : p) <= 0)
2898                 continue;
2899             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2900             m = &stream_maps[nb_stream_maps - 1];
2901
2902             m->file_index   = file_idx;
2903             m->stream_index = i;
2904
2905             if (sync_file_idx >= 0) {
2906                 m->sync_file_index   = sync_file_idx;
2907                 m->sync_stream_index = sync_stream_idx;
2908             } else {
2909                 m->sync_file_index   = file_idx;
2910                 m->sync_stream_index = i;
2911             }
2912         }
2913
2914     if (!m) {
2915         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2916         exit_program(1);
2917     }
2918
2919     av_freep(&map);
2920     return 0;
2921 }
2922
2923 static void parse_meta_type(char *arg, char *type, int *index)
2924 {
2925     if (*arg == ':') {
2926         *type = *(++arg);
2927         switch (*arg) {
2928         case 'g':
2929             break;
2930         case 's':
2931         case 'c':
2932         case 'p':
2933             if (*(++arg) == ':')
2934                 *index = strtol(++arg, NULL, 0);
2935             break;
2936         default:
2937             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2938             exit_program(1);
2939         }
2940     } else
2941         *type = 'g';
2942 }
2943
2944 static int opt_map_metadata(const char *opt, const char *arg)
2945 {
2946     MetadataMap *m, *m1;
2947     char *p;
2948
2949     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2950                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2951
2952     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2953     m->file = strtol(arg, &p, 0);
2954     parse_meta_type(p, &m->type, &m->index);
2955
2956     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2957     if (p = strchr(opt, ':'))
2958         parse_meta_type(p, &m1->type, &m1->index);
2959     else
2960         m1->type = 'g';
2961
2962     if (m->type == 'g' || m1->type == 'g')
2963         metadata_global_autocopy = 0;
2964     if (m->type == 's' || m1->type == 's')
2965         metadata_streams_autocopy = 0;
2966     if (m->type == 'c' || m1->type == 'c')
2967         metadata_chapters_autocopy = 0;
2968
2969     return 0;
2970 }
2971
2972 static int opt_map_meta_data(const char *opt, const char *arg)
2973 {
2974     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
2975                     "Use -map_metadata instead.\n");
2976     return opt_map_metadata(opt, arg);
2977 }
2978
2979 static int opt_input_ts_scale(const char *opt, const char *arg)
2980 {
2981     return av_dict_set(&ts_scale, opt, arg, 0);
2982 }
2983
2984 static int opt_recording_time(const char *opt, const char *arg)
2985 {
2986     recording_time = parse_time_or_die(opt, arg, 1);
2987     return 0;
2988 }
2989
2990 static int opt_start_time(const char *opt, const char *arg)
2991 {
2992     start_time = parse_time_or_die(opt, arg, 1);
2993     return 0;
2994 }
2995
2996 static int opt_recording_timestamp(const char *opt, const char *arg)
2997 {
2998     char buf[128];
2999     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3000     struct tm time = *gmtime((time_t*)&recording_timestamp);
3001     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3002     opt_metadata("metadata", buf);
3003
3004     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3005                                  "tag instead.\n", opt);
3006     return 0;
3007 }
3008
3009 static int opt_input_ts_offset(const char *opt, const char *arg)
3010 {
3011     input_ts_offset = parse_time_or_die(opt, arg, 1);
3012     return 0;
3013 }
3014
3015 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3016 {
3017     const char *codec_string = encoder ? "encoder" : "decoder";
3018     AVCodec *codec;
3019
3020     if(!name)
3021         return CODEC_ID_NONE;
3022     codec = encoder ?
3023         avcodec_find_encoder_by_name(name) :
3024         avcodec_find_decoder_by_name(name);
3025     if(!codec) {
3026         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
3027         exit_program(1);
3028     }
3029     if(codec->type != type) {
3030         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
3031         exit_program(1);
3032     }
3033     return codec->id;
3034 }
3035
3036 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
3037 {
3038     AVDictionaryEntry *e = NULL;
3039     char *codec_name = NULL;
3040     int ret;
3041
3042     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
3043         char *p = strchr(e->key, ':');
3044
3045         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
3046             codec_name = e->value;
3047         else if (ret < 0)
3048             exit_program(1);
3049     }
3050
3051     if (!codec_name) {
3052         if (s->oformat) {
3053             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
3054             return avcodec_find_encoder(st->codec->codec_id);
3055         }
3056     } else if (!strcmp(codec_name, "copy"))
3057         st->stream_copy = 1;
3058     else {
3059         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
3060         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
3061                             avcodec_find_decoder_by_name(codec_name);
3062     }
3063
3064     return NULL;
3065 }
3066
3067 /**
3068  * Add all the streams from the given input file to the global
3069  * list of input streams.
3070  */
3071 static void add_input_streams(AVFormatContext *ic)
3072 {
3073     int i, rfps, rfps_base, ret;
3074
3075     for (i = 0; i < ic->nb_streams; i++) {
3076         AVStream *st = ic->streams[i];
3077         AVCodecContext *dec = st->codec;
3078         AVDictionaryEntry *e = NULL;
3079         InputStream *ist;
3080         char *scale = NULL;
3081
3082         dec->thread_count = thread_count;
3083
3084         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3085         ist = &input_streams[nb_input_streams - 1];
3086         ist->st = st;
3087         ist->file_index = nb_input_files;
3088         ist->discard = 1;
3089         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3090
3091         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
3092             char *p = strchr(e->key, ':');
3093
3094             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
3095                 scale = e->value;
3096             else if (ret < 0)
3097                 exit_program(1);
3098         }
3099         if (scale)
3100             ist->ts_scale = strtod(scale, NULL);
3101
3102         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
3103         if (!ist->dec)
3104             ist->dec = avcodec_find_decoder(dec->codec_id);
3105
3106         switch (dec->codec_type) {
3107         case AVMEDIA_TYPE_AUDIO:
3108             if(!ist->dec)
3109                 ist->dec = avcodec_find_decoder(dec->codec_id);
3110             if(audio_disable)
3111                 st->discard= AVDISCARD_ALL;
3112             break;
3113         case AVMEDIA_TYPE_VIDEO:
3114             if(!ist->dec)
3115                 ist->dec = avcodec_find_decoder(dec->codec_id);
3116             rfps      = ic->streams[i]->r_frame_rate.num;
3117             rfps_base = ic->streams[i]->r_frame_rate.den;
3118             if (dec->lowres) {
3119                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3120             }
3121             if(me_threshold)
3122                 dec->debug |= FF_DEBUG_MV;
3123
3124             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3125
3126                 if (verbose >= 0)
3127                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3128                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3129
3130                     (float)rfps / rfps_base, rfps, rfps_base);
3131             }
3132
3133             if(video_disable)
3134                 st->discard= AVDISCARD_ALL;
3135             else if(video_discard)
3136                 st->discard= video_discard;
3137             break;
3138         case AVMEDIA_TYPE_DATA:
3139             break;
3140         case AVMEDIA_TYPE_SUBTITLE:
3141             if(!ist->dec)
3142                 ist->dec = avcodec_find_decoder(dec->codec_id);
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
3155 static int opt_input_file(const char *opt, const char *filename)
3156 {
3157     AVFormatContext *ic;
3158     AVInputFormat *file_iformat = NULL;
3159     int err, i, ret;
3160     int64_t timestamp;
3161     uint8_t buf[128];
3162     AVDictionary **opts;
3163     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3164
3165     if (last_asked_format) {
3166         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3167             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3168             exit_program(1);
3169         }
3170         last_asked_format = NULL;
3171     }
3172
3173     if (!strcmp(filename, "-"))
3174         filename = "pipe:";
3175
3176     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3177                     !strcmp(filename, "/dev/stdin");
3178
3179     /* get default parameters from command line */
3180     ic = avformat_alloc_context();
3181     if (!ic) {
3182         print_error(filename, AVERROR(ENOMEM));
3183         exit_program(1);
3184     }
3185     if (audio_sample_rate) {
3186         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3187         av_dict_set(&format_opts, "sample_rate", buf, 0);
3188     }
3189     if (audio_channels) {
3190         snprintf(buf, sizeof(buf), "%d", audio_channels);
3191         av_dict_set(&format_opts, "channels", buf, 0);
3192     }
3193     if (frame_rate.num) {
3194         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3195         av_dict_set(&format_opts, "framerate", buf, 0);
3196     }
3197     if (frame_width && frame_height) {
3198         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3199         av_dict_set(&format_opts, "video_size", buf, 0);
3200     }
3201     if (frame_pix_fmt != PIX_FMT_NONE)
3202         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3203
3204     ic->flags |= AVFMT_FLAG_NONBLOCK;
3205
3206     if (loop_input) {
3207         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3208         ic->loop_input = loop_input;
3209     }
3210
3211     /* open the input file with generic libav function */
3212     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3213     if (err < 0) {
3214         print_error(filename, err);
3215         exit_program(1);
3216     }
3217     assert_avoptions(format_opts);
3218
3219     if(opt_programid) {
3220         int i, j;
3221         int found=0;
3222         for(i=0; i<ic->nb_streams; i++){
3223             ic->streams[i]->discard= AVDISCARD_ALL;
3224         }
3225         for(i=0; i<ic->nb_programs; i++){
3226             AVProgram *p= ic->programs[i];
3227             if(p->id != opt_programid){
3228                 p->discard = AVDISCARD_ALL;
3229             }else{
3230                 found=1;
3231                 for(j=0; j<p->nb_stream_indexes; j++){
3232                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3233                 }
3234             }
3235         }
3236         if(!found){
3237             fprintf(stderr, "Specified program id not found\n");
3238             exit_program(1);
3239         }
3240         opt_programid=0;
3241     }
3242
3243     /* apply forced codec ids */
3244     for (i = 0; i < ic->nb_streams; i++)
3245         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3246
3247     /* Set AVCodecContext options for avformat_find_stream_info */
3248     opts = setup_find_stream_info_opts(ic, codec_opts);
3249     orig_nb_streams = ic->nb_streams;
3250
3251     /* If not enough info to get the stream parameters, we decode the
3252        first frames to get it. (used in mpeg case for example) */
3253     ret = avformat_find_stream_info(ic, opts);
3254     if (ret < 0 && verbose >= 0) {
3255         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3256         av_close_input_file(ic);
3257         exit_program(1);
3258     }
3259
3260     timestamp = start_time;
3261     /* add the stream start time */
3262     if (ic->start_time != AV_NOPTS_VALUE)
3263         timestamp += ic->start_time;
3264
3265     /* if seeking requested, we execute it */
3266     if (start_time != 0) {
3267         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3268         if (ret < 0) {
3269             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3270                     filename, (double)timestamp / AV_TIME_BASE);
3271         }
3272         /* reset seek info */
3273         start_time = 0;
3274     }
3275
3276     /* update the current parameters so that they match the one of the input stream */
3277     add_input_streams(ic);
3278
3279     /* dump the file content */
3280     if (verbose >= 0)
3281         av_dump_format(ic, nb_input_files, filename, 0);
3282
3283     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3284     input_files[nb_input_files - 1].ctx        = ic;
3285     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3286     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3287     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3288
3289     top_field_first = -1;
3290     frame_rate    = (AVRational){0, 0};
3291     frame_pix_fmt = PIX_FMT_NONE;
3292     frame_height = 0;
3293     frame_width  = 0;
3294     audio_sample_rate = 0;
3295     audio_channels    = 0;
3296     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3297     av_dict_free(&ts_scale);
3298     input_ts_offset = 0;
3299
3300     for (i = 0; i < orig_nb_streams; i++)
3301         av_dict_free(&opts[i]);
3302     av_freep(&opts);
3303     av_dict_free(&codec_names);
3304     uninit_opts();
3305     init_opts();
3306     return 0;
3307 }
3308
3309 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3310                                     AVCodecContext *avctx)
3311 {
3312     char *p;
3313     int n = 1, i;
3314     int64_t t;
3315
3316     for (p = kf; *p; p++)
3317         if (*p == ',')
3318             n++;
3319     ost->forced_kf_count = n;
3320     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3321     if (!ost->forced_kf_pts) {
3322         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3323         exit_program(1);
3324     }
3325     for (i = 0; i < n; i++) {
3326         p = i ? strchr(p, ',') + 1 : kf;
3327         t = parse_time_or_die("force_key_frames", p, 1);
3328         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3329     }
3330 }
3331
3332 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3333 {
3334     OutputStream *ost;
3335     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3336     int idx      = oc->nb_streams - 1;
3337
3338     if (!st) {
3339         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3340         exit_program(1);
3341     }
3342
3343     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3344                                 nb_output_streams + 1);
3345     ost = &output_streams[nb_output_streams - 1];
3346     ost->file_index = nb_output_files;
3347     ost->index = idx;
3348     ost->st    = st;
3349     st->codec->codec_type = type;
3350     ost->enc = choose_codec(oc, st, type, codec_names);
3351     if (ost->enc) {
3352         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3353     }
3354
3355     avcodec_get_context_defaults3(st->codec, ost->enc);
3356     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3357
3358     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3359     return ost;
3360 }
3361
3362 static OutputStream *new_video_stream(AVFormatContext *oc)
3363 {
3364     AVStream *st;
3365     OutputStream *ost;
3366     AVCodecContext *video_enc;
3367
3368     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3369     st  = ost->st;
3370     if (!st->stream_copy) {
3371         ost->frame_aspect_ratio = frame_aspect_ratio;
3372         frame_aspect_ratio = 0;
3373 #if CONFIG_AVFILTER
3374         ost->avfilter = vfilters;
3375         vfilters = NULL;
3376 #endif
3377     }
3378
3379     ost->bitstream_filters = video_bitstream_filters;
3380     video_bitstream_filters= NULL;
3381
3382     st->codec->thread_count= thread_count;
3383
3384     video_enc = st->codec;
3385
3386     if(video_codec_tag)
3387         video_enc->codec_tag= video_codec_tag;
3388
3389     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3390         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3391     }
3392
3393     if (st->stream_copy) {
3394         video_enc->sample_aspect_ratio =
3395         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3396     } else {
3397         const char *p;
3398         int i;
3399
3400         if (frame_rate.num)
3401             ost->frame_rate = frame_rate;
3402
3403         video_enc->width = frame_width;
3404         video_enc->height = frame_height;
3405         video_enc->pix_fmt = frame_pix_fmt;
3406         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3407         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3408
3409         if (intra_only)
3410             video_enc->gop_size = 0;
3411         if (video_qscale || same_quant) {
3412             video_enc->flags |= CODEC_FLAG_QSCALE;
3413             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3414         }
3415
3416         if(intra_matrix)
3417             video_enc->intra_matrix = intra_matrix;
3418         if(inter_matrix)
3419             video_enc->inter_matrix = inter_matrix;
3420
3421         p= video_rc_override_string;
3422         for(i=0; p; i++){
3423             int start, end, q;
3424             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3425             if(e!=3){
3426                 fprintf(stderr, "error parsing rc_override\n");
3427                 exit_program(1);
3428             }
3429             video_enc->rc_override=
3430                 av_realloc(video_enc->rc_override,
3431                            sizeof(RcOverride)*(i+1));
3432             video_enc->rc_override[i].start_frame= start;
3433             video_enc->rc_override[i].end_frame  = end;
3434             if(q>0){
3435                 video_enc->rc_override[i].qscale= q;
3436                 video_enc->rc_override[i].quality_factor= 1.0;
3437             }
3438             else{
3439                 video_enc->rc_override[i].qscale= 0;
3440                 video_enc->rc_override[i].quality_factor= -q/100.0;
3441             }
3442             p= strchr(p, '/');
3443             if(p) p++;
3444         }
3445         video_enc->rc_override_count=i;
3446         if (!video_enc->rc_initial_buffer_occupancy)
3447             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3448         video_enc->me_threshold= me_threshold;
3449         video_enc->intra_dc_precision= intra_dc_precision - 8;
3450
3451         if (do_psnr)
3452             video_enc->flags|= CODEC_FLAG_PSNR;
3453
3454         /* two pass mode */
3455         if (do_pass) {
3456             if (do_pass == 1) {
3457                 video_enc->flags |= CODEC_FLAG_PASS1;
3458             } else {
3459                 video_enc->flags |= CODEC_FLAG_PASS2;
3460             }
3461         }
3462
3463         if (forced_key_frames)
3464             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3465     }
3466     if (video_language) {
3467         av_dict_set(&st->metadata, "language", video_language, 0);
3468         av_freep(&video_language);
3469     }
3470
3471     /* reset some key parameters */
3472     video_disable = 0;
3473     av_freep(&forced_key_frames);
3474     frame_pix_fmt = PIX_FMT_NONE;
3475     return ost;
3476 }
3477
3478 static OutputStream *new_audio_stream(AVFormatContext *oc)
3479 {
3480     AVStream *st;
3481     OutputStream *ost;
3482     AVCodecContext *audio_enc;
3483
3484     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3485     st  = ost->st;
3486
3487     ost->bitstream_filters = audio_bitstream_filters;
3488     audio_bitstream_filters= NULL;
3489
3490     st->codec->thread_count= thread_count;
3491
3492     audio_enc = st->codec;
3493     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3494
3495     if(audio_codec_tag)
3496         audio_enc->codec_tag= audio_codec_tag;
3497
3498     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3499         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3500     }
3501     if (!st->stream_copy) {
3502         if (audio_qscale > QSCALE_NONE) {
3503             audio_enc->flags |= CODEC_FLAG_QSCALE;
3504             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3505         }
3506         if (audio_channels)
3507             audio_enc->channels = audio_channels;
3508         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3509             audio_enc->sample_fmt = audio_sample_fmt;
3510         if (audio_sample_rate)
3511             audio_enc->sample_rate = audio_sample_rate;
3512     }
3513     if (audio_language) {
3514         av_dict_set(&st->metadata, "language", audio_language, 0);
3515         av_freep(&audio_language);
3516     }
3517
3518     /* reset some key parameters */
3519     audio_disable = 0;
3520
3521     return ost;
3522 }
3523
3524 static OutputStream *new_data_stream(AVFormatContext *oc)
3525 {
3526     AVStream *st;
3527     OutputStream *ost;
3528     AVCodecContext *data_enc;
3529
3530     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3531     st  = ost->st;
3532     data_enc = st->codec;
3533     if (!st->stream_copy) {
3534         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3535         exit_program(1);
3536     }
3537
3538     if (data_codec_tag)
3539         data_enc->codec_tag= data_codec_tag;
3540
3541     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3542         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3543     }
3544
3545     data_disable = 0;
3546     return ost;
3547 }
3548
3549 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3550 {
3551     AVStream *st;
3552     OutputStream *ost;
3553     AVCodecContext *subtitle_enc;
3554
3555     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3556     st  = ost->st;
3557     subtitle_enc = st->codec;
3558
3559     ost->bitstream_filters = subtitle_bitstream_filters;
3560     subtitle_bitstream_filters= NULL;
3561
3562     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3563
3564     if(subtitle_codec_tag)
3565         subtitle_enc->codec_tag= subtitle_codec_tag;
3566
3567     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3568         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3569     }
3570
3571     if (subtitle_language) {
3572         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3573         av_freep(&subtitle_language);
3574     }
3575
3576     subtitle_disable = 0;
3577     return ost;
3578 }
3579
3580 /* arg format is "output-stream-index:streamid-value". */
3581 static int opt_streamid(const char *opt, const char *arg)
3582 {
3583     int idx;
3584     char *p;
3585     char idx_str[16];
3586
3587     av_strlcpy(idx_str, arg, sizeof(idx_str));
3588     p = strchr(idx_str, ':');
3589     if (!p) {
3590         fprintf(stderr,
3591                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3592                 arg, opt);
3593         exit_program(1);
3594     }
3595     *p++ = '\0';
3596     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3597     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3598     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3599     return 0;
3600 }
3601 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3602 {
3603     int i, err;
3604     AVFormatContext *ic = NULL;
3605
3606     err = avformat_open_input(&ic, filename, NULL, NULL);
3607     if (err < 0)
3608         return err;
3609     /* copy stream format */
3610     for(i=0;i<ic->nb_streams;i++) {
3611         AVStream *st;
3612         OutputStream *ost;
3613         AVCodec *codec;
3614
3615         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3616         ost   = new_output_stream(s, codec->type);
3617         st    = ost->st;
3618
3619         // FIXME: a more elegant solution is needed
3620         memcpy(st, ic->streams[i], sizeof(AVStream));
3621         st->info = av_malloc(sizeof(*st->info));
3622         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3623         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3624
3625         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3626             choose_sample_fmt(st, codec);
3627         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3628             choose_pixel_fmt(st, codec);
3629     }
3630
3631     av_close_input_file(ic);
3632     return 0;
3633 }
3634
3635
3636 static int copy_chapters(int infile, int outfile)
3637 {
3638     AVFormatContext *is = input_files[infile].ctx;
3639     AVFormatContext *os = output_files[outfile].ctx;
3640     int i;
3641
3642     for (i = 0; i < is->nb_chapters; i++) {
3643         AVChapter *in_ch = is->chapters[i], *out_ch;
3644         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3645                                       AV_TIME_BASE_Q, in_ch->time_base);
3646         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3647                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3648
3649
3650         if (in_ch->end < ts_off)
3651             continue;
3652         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3653             break;
3654
3655         out_ch = av_mallocz(sizeof(AVChapter));
3656         if (!out_ch)
3657             return AVERROR(ENOMEM);
3658
3659         out_ch->id        = in_ch->id;
3660         out_ch->time_base = in_ch->time_base;
3661         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3662         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3663
3664         if (metadata_chapters_autocopy)
3665             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3666
3667         os->nb_chapters++;
3668         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3669         if (!os->chapters)
3670             return AVERROR(ENOMEM);
3671         os->chapters[os->nb_chapters - 1] = out_ch;
3672     }
3673     return 0;
3674 }
3675
3676 static int opt_output_file(const char *opt, const char *filename)
3677 {
3678     AVFormatContext *oc;
3679     int i, err;
3680     AVOutputFormat *file_oformat;
3681     OutputStream *ost;