vocdec: Take channel count into account when calculating bit rate.
[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 file_index;
95     int stream_index;
96     int sync_file_index;
97     int sync_stream_index;
98 } StreamMap;
99
100 /**
101  * select an input file for an output file
102  */
103 typedef struct MetadataMap {
104     int  file;      ///< file index
105     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
106     int  index;     ///< stream/chapter/program number
107 } MetadataMap;
108
109 typedef struct ChapterMap {
110     int in_file;
111     int out_file;
112 } ChapterMap;
113
114 static const OptionDef options[];
115
116 #define MAX_FILES 100
117 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
118 static const char *last_asked_format = NULL;
119 static double *ts_scale;
120 static int  nb_ts_scale;
121
122 static AVFormatContext *output_files[MAX_FILES];
123 static AVDictionary *output_opts[MAX_FILES];
124 static int nb_output_files = 0;
125
126 static StreamMap *stream_maps = NULL;
127 static int nb_stream_maps;
128
129 /* first item specifies output metadata, second is input */
130 static MetadataMap (*meta_data_maps)[2] = NULL;
131 static int nb_meta_data_maps;
132 static int metadata_global_autocopy   = 1;
133 static int metadata_streams_autocopy  = 1;
134 static int metadata_chapters_autocopy = 1;
135
136 static ChapterMap *chapter_maps = NULL;
137 static int nb_chapter_maps;
138
139 /* indexed by output file stream index */
140 static int *streamid_map = NULL;
141 static int nb_streamid_map = 0;
142
143 static int frame_width  = 0;
144 static int frame_height = 0;
145 static float frame_aspect_ratio = 0;
146 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
147 static int frame_bits_per_raw_sample = 0;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 #endif
171
172 static int intra_only = 0;
173 static int audio_sample_rate = 0;
174 #define QSCALE_NONE -99999
175 static float audio_qscale = QSCALE_NONE;
176 static int audio_disable = 0;
177 static int audio_channels = 0;
178 static char  *audio_codec_name = NULL;
179 static unsigned int audio_codec_tag = 0;
180 static char *audio_language = NULL;
181
182 static int subtitle_disable = 0;
183 static char *subtitle_codec_name = NULL;
184 static char *subtitle_language = NULL;
185 static unsigned int subtitle_codec_tag = 0;
186
187 static int data_disable = 0;
188 static char *data_codec_name = NULL;
189 static unsigned int data_codec_tag = 0;
190
191 static float mux_preload= 0.5;
192 static float mux_max_delay= 0.7;
193
194 static int64_t recording_time = INT64_MAX;
195 static int64_t start_time = 0;
196 static int64_t input_ts_offset = 0;
197 static int file_overwrite = 0;
198 static AVDictionary *metadata;
199 static int do_benchmark = 0;
200 static int do_hex_dump = 0;
201 static int do_pkt_dump = 0;
202 static int do_psnr = 0;
203 static int do_pass = 0;
204 static const char *pass_logfilename_prefix;
205 static int audio_stream_copy = 0;
206 static int video_stream_copy = 0;
207 static int subtitle_stream_copy = 0;
208 static int data_stream_copy = 0;
209 static int video_sync_method= -1;
210 static int audio_sync_method= 0;
211 static float audio_drift_threshold= 0.1;
212 static int copy_ts= 0;
213 static int copy_tb= 0;
214 static int opt_shortest = 0;
215 static char *vstats_filename;
216 static FILE *vstats_file;
217 static int opt_programid = 0;
218 static int copy_initial_nonkeyframes = 0;
219
220 static int rate_emu = 0;
221
222 static int audio_volume = 256;
223
224 static int exit_on_error = 0;
225 static int using_stdin = 0;
226 static int verbose = 1;
227 static int run_as_daemon  = 0;
228 static int thread_count= 1;
229 static int q_pressed = 0;
230 static int64_t video_size = 0;
231 static int64_t audio_size = 0;
232 static int64_t extra_size = 0;
233 static int nb_frames_dup = 0;
234 static int nb_frames_drop = 0;
235 static int input_sync;
236 static uint64_t limit_filesize = 0;
237 static int force_fps = 0;
238 static char *forced_key_frames = NULL;
239
240 static float dts_delta_threshold = 10;
241
242 static int64_t timer_start;
243
244 static uint8_t *audio_buf;
245 static uint8_t *audio_out;
246 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
247
248 static short *samples;
249
250 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
251 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
252 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
253
254 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
255
256 struct InputStream;
257
258 typedef struct OutputStream {
259     int file_index;          /* file index */
260     int index;               /* stream index in the output file */
261     int source_index;        /* InputStream index */
262     AVStream *st;            /* stream in the output file */
263     int encoding_needed;     /* true if encoding needed for this stream */
264     int frame_number;
265     /* input pts and corresponding output pts
266        for A/V sync */
267     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
268     struct InputStream *sync_ist; /* input stream to sync against */
269     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
270     AVBitStreamFilterContext *bitstream_filters;
271     AVCodec *enc;
272
273     /* video only */
274     int video_resample;
275     AVFrame resample_frame;              /* temporary frame for image resampling */
276     struct SwsContext *img_resample_ctx; /* for image resampling */
277     int resample_height;
278     int resample_width;
279     int resample_pix_fmt;
280     AVRational frame_rate;
281
282     float frame_aspect_ratio;
283
284     /* forced key frames */
285     int64_t *forced_kf_pts;
286     int forced_kf_count;
287     int forced_kf_index;
288
289     /* audio only */
290     int audio_resample;
291     ReSampleContext *resample; /* for audio resampling */
292     int resample_sample_fmt;
293     int resample_channels;
294     int resample_sample_rate;
295     int reformat_pair;
296     AVAudioConvert *reformat_ctx;
297     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
298     FILE *logfile;
299
300 #if CONFIG_AVFILTER
301     AVFilterContext *output_video_filter;
302     AVFilterContext *input_video_filter;
303     AVFilterBufferRef *picref;
304     char *avfilter;
305     AVFilterGraph *graph;
306 #endif
307
308    int sws_flags;
309    AVDictionary *opts;
310 } OutputStream;
311
312 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
313 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
314
315 typedef struct InputStream {
316     int file_index;
317     AVStream *st;
318     int discard;             /* true if stream data should be discarded */
319     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
320     AVCodec *dec;
321
322     int64_t       start;     /* time when read started */
323     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
324                                 is not defined */
325     int64_t       pts;       /* current pts */
326     double ts_scale;
327     int is_start;            /* is 1 at the start and after a discontinuity */
328     int showed_multi_packet_warning;
329     int is_past_recording_time;
330     AVDictionary *opts;
331 } InputStream;
332
333 typedef struct InputFile {
334     AVFormatContext *ctx;
335     int eof_reached;      /* true if eof reached */
336     int ist_index;        /* index of first stream in ist_table */
337     int buffer_size;      /* current total buffer size */
338     int nb_streams;
339     int64_t ts_offset;
340 } InputFile;
341
342 #if HAVE_TERMIOS_H
343
344 /* init terminal so that we can grab keys */
345 static struct termios oldtty;
346 #endif
347
348 static InputStream *input_streams = NULL;
349 static int         nb_input_streams = 0;
350 static InputFile   *input_files   = NULL;
351 static int         nb_input_files   = 0;
352
353 #if CONFIG_AVFILTER
354
355 static int configure_video_filters(InputStream *ist, OutputStream *ost)
356 {
357     AVFilterContext *last_filter, *filter;
358     /** filter graph containing all filters including input & output */
359     AVCodecContext *codec = ost->st->codec;
360     AVCodecContext *icodec = ist->st->codec;
361     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
362     AVRational sample_aspect_ratio;
363     char args[255];
364     int ret;
365
366     ost->graph = avfilter_graph_alloc();
367
368     if (ist->st->sample_aspect_ratio.num){
369         sample_aspect_ratio = ist->st->sample_aspect_ratio;
370     }else
371         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
372
373     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
374              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
375              sample_aspect_ratio.num, sample_aspect_ratio.den);
376
377     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
378                                        "src", args, NULL, ost->graph);
379     if (ret < 0)
380         return ret;
381     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
382                                        "out", NULL, pix_fmts, ost->graph);
383     if (ret < 0)
384         return ret;
385     last_filter = ost->input_video_filter;
386
387     if (codec->width  != icodec->width || codec->height != icodec->height) {
388         snprintf(args, 255, "%d:%d:flags=0x%X",
389                  codec->width,
390                  codec->height,
391                  ost->sws_flags);
392         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
393                                                 NULL, args, NULL, ost->graph)) < 0)
394             return ret;
395         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
396             return ret;
397         last_filter = filter;
398     }
399
400     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
401     ost->graph->scale_sws_opts = av_strdup(args);
402
403     if (ost->avfilter) {
404         AVFilterInOut *outputs = avfilter_inout_alloc();
405         AVFilterInOut *inputs  = avfilter_inout_alloc();
406
407         outputs->name    = av_strdup("in");
408         outputs->filter_ctx = last_filter;
409         outputs->pad_idx = 0;
410         outputs->next    = NULL;
411
412         inputs->name    = av_strdup("out");
413         inputs->filter_ctx = ost->output_video_filter;
414         inputs->pad_idx = 0;
415         inputs->next    = NULL;
416
417         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
418             return ret;
419         av_freep(&ost->avfilter);
420     } else {
421         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
422             return ret;
423     }
424
425     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
426         return ret;
427
428     codec->width  = ost->output_video_filter->inputs[0]->w;
429     codec->height = ost->output_video_filter->inputs[0]->h;
430     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
431         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
432         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
433         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
434
435     return 0;
436 }
437 #endif /* CONFIG_AVFILTER */
438
439 static void term_exit(void)
440 {
441     av_log(NULL, AV_LOG_QUIET, "%s", "");
442 #if HAVE_TERMIOS_H
443     if(!run_as_daemon)
444         tcsetattr (0, TCSANOW, &oldtty);
445 #endif
446 }
447
448 static volatile int received_sigterm = 0;
449
450 static void
451 sigterm_handler(int sig)
452 {
453     received_sigterm = sig;
454     q_pressed++;
455     term_exit();
456 }
457
458 static void term_init(void)
459 {
460 #if HAVE_TERMIOS_H
461     if(!run_as_daemon){
462     struct termios tty;
463
464     tcgetattr (0, &tty);
465     oldtty = tty;
466     atexit(term_exit);
467
468     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
469                           |INLCR|IGNCR|ICRNL|IXON);
470     tty.c_oflag |= OPOST;
471     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
472     tty.c_cflag &= ~(CSIZE|PARENB);
473     tty.c_cflag |= CS8;
474     tty.c_cc[VMIN] = 1;
475     tty.c_cc[VTIME] = 0;
476
477     tcsetattr (0, TCSANOW, &tty);
478     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
479     }
480 #endif
481
482     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
483     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
484 #ifdef SIGXCPU
485     signal(SIGXCPU, sigterm_handler);
486 #endif
487 }
488
489 /* read a key without blocking */
490 static int read_key(void)
491 {
492 #if HAVE_TERMIOS_H
493     int n = 1;
494     unsigned char ch;
495     struct timeval tv;
496     fd_set rfds;
497
498     if(run_as_daemon)
499         return -1;
500
501     FD_ZERO(&rfds);
502     FD_SET(0, &rfds);
503     tv.tv_sec = 0;
504     tv.tv_usec = 0;
505     n = select(1, &rfds, NULL, NULL, &tv);
506     if (n > 0) {
507         n = read(0, &ch, 1);
508         if (n == 1)
509             return ch;
510
511         return n;
512     }
513 #elif HAVE_KBHIT
514     if(kbhit())
515         return(getch());
516 #endif
517     return -1;
518 }
519
520 static int decode_interrupt_cb(void)
521 {
522     q_pressed += read_key() == 'q';
523     return q_pressed > 1;
524 }
525
526 static int ffmpeg_exit(int ret)
527 {
528     int i;
529
530     /* close files */
531     for(i=0;i<nb_output_files;i++) {
532         AVFormatContext *s = output_files[i];
533         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
534             avio_close(s->pb);
535         avformat_free_context(s);
536         av_free(output_streams_for_file[i]);
537         av_dict_free(&output_opts[i]);
538     }
539     for(i=0;i<nb_input_files;i++) {
540         av_close_input_file(input_files[i].ctx);
541     }
542     for (i = 0; i < nb_input_streams; i++)
543         av_dict_free(&input_streams[i].opts);
544
545     av_free(intra_matrix);
546     av_free(inter_matrix);
547
548     if (vstats_file)
549         fclose(vstats_file);
550     av_free(vstats_filename);
551
552     av_free(streamid_map);
553     av_free(stream_maps);
554     av_free(meta_data_maps);
555
556     av_freep(&input_streams);
557     av_freep(&input_files);
558
559     av_free(video_codec_name);
560     av_free(audio_codec_name);
561     av_free(subtitle_codec_name);
562     av_free(data_codec_name);
563
564     uninit_opts();
565     av_free(audio_buf);
566     av_free(audio_out);
567     allocated_audio_buf_size= allocated_audio_out_size= 0;
568     av_free(samples);
569
570 #if CONFIG_AVFILTER
571     avfilter_uninit();
572 #endif
573
574     if (received_sigterm) {
575         fprintf(stderr,
576             "Received signal %d: terminating.\n",
577             (int) received_sigterm);
578         exit (255);
579     }
580
581     exit(ret); /* not all OS-es handle main() return value */
582     return ret;
583 }
584
585 static void assert_avoptions(AVDictionary *m)
586 {
587     AVDictionaryEntry *t;
588     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
589         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
590         ffmpeg_exit(1);
591     }
592 }
593
594 static void assert_codec_experimental(AVCodecContext *c, int encoder)
595 {
596     const char *codec_string = encoder ? "encoder" : "decoder";
597     AVCodec *codec;
598     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
599         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
600         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
601                 "results.\nAdd '-strict experimental' if you want to use it.\n",
602                 codec_string, c->codec->name);
603         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
604         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
605             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
606                    codec_string, codec->name);
607         ffmpeg_exit(1);
608     }
609 }
610
611 /* similar to ff_dynarray_add() and av_fast_realloc() */
612 static void *grow_array(void *array, int elem_size, int *size, int new_size)
613 {
614     if (new_size >= INT_MAX / elem_size) {
615         fprintf(stderr, "Array too big.\n");
616         ffmpeg_exit(1);
617     }
618     if (*size < new_size) {
619         uint8_t *tmp = av_realloc(array, new_size*elem_size);
620         if (!tmp) {
621             fprintf(stderr, "Could not alloc buffer.\n");
622             ffmpeg_exit(1);
623         }
624         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
625         *size = new_size;
626         return tmp;
627     }
628     return array;
629 }
630
631 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
632 {
633     if(codec && codec->sample_fmts){
634         const enum AVSampleFormat *p= codec->sample_fmts;
635         for(; *p!=-1; p++){
636             if(*p == st->codec->sample_fmt)
637                 break;
638         }
639         if (*p == -1) {
640             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
641                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
642             if(av_get_sample_fmt_name(st->codec->sample_fmt))
643             av_log(NULL, AV_LOG_WARNING,
644                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
645                    av_get_sample_fmt_name(st->codec->sample_fmt),
646                    codec->name,
647                    av_get_sample_fmt_name(codec->sample_fmts[0]));
648             st->codec->sample_fmt = codec->sample_fmts[0];
649         }
650     }
651 }
652
653 static void choose_sample_rate(AVStream *st, AVCodec *codec)
654 {
655     if(codec && codec->supported_samplerates){
656         const int *p= codec->supported_samplerates;
657         int best=0;
658         int best_dist=INT_MAX;
659         for(; *p; p++){
660             int dist= abs(st->codec->sample_rate - *p);
661             if(dist < best_dist){
662                 best_dist= dist;
663                 best= *p;
664             }
665         }
666         if(best_dist){
667             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
668         }
669         st->codec->sample_rate= best;
670     }
671 }
672
673 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
674 {
675     if(codec && codec->pix_fmts){
676         const enum PixelFormat *p= codec->pix_fmts;
677         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
678             if(st->codec->codec_id==CODEC_ID_MJPEG){
679                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
680             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
681                 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};
682             }
683         }
684         for(; *p!=-1; p++){
685             if(*p == st->codec->pix_fmt)
686                 break;
687         }
688         if (*p == -1) {
689             if(st->codec->pix_fmt != PIX_FMT_NONE)
690                 av_log(NULL, AV_LOG_WARNING,
691                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
692                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
693                         codec->name,
694                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
695             st->codec->pix_fmt = codec->pix_fmts[0];
696         }
697     }
698 }
699
700 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
701 {
702     OutputStream *ost;
703     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
704     int idx      = oc->nb_streams - 1;
705
706     if (!st) {
707         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
708         ffmpeg_exit(1);
709     }
710
711     output_streams_for_file[file_idx] =
712         grow_array(output_streams_for_file[file_idx],
713                    sizeof(*output_streams_for_file[file_idx]),
714                    &nb_output_streams_for_file[file_idx],
715                    oc->nb_streams);
716     ost = output_streams_for_file[file_idx][idx] =
717         av_mallocz(sizeof(OutputStream));
718     if (!ost) {
719         fprintf(stderr, "Could not alloc output stream\n");
720         ffmpeg_exit(1);
721     }
722     ost->file_index = file_idx;
723     ost->index = idx;
724     ost->st    = st;
725     ost->enc   = codec;
726     if (codec)
727         ost->opts  = filter_codec_opts(codec_opts, codec->id, oc, st);
728
729     avcodec_get_context_defaults3(st->codec, codec);
730
731     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
732     return ost;
733 }
734
735 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
736 {
737     int i, err;
738     AVFormatContext *ic = NULL;
739
740     err = avformat_open_input(&ic, filename, NULL, NULL);
741     if (err < 0)
742         return err;
743     /* copy stream format */
744     for(i=0;i<ic->nb_streams;i++) {
745         AVStream *st;
746         OutputStream *ost;
747         AVCodec *codec;
748
749         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
750         ost   = new_output_stream(s, nb_output_files, codec);
751         st    = ost->st;
752
753         // FIXME: a more elegant solution is needed
754         memcpy(st, ic->streams[i], sizeof(AVStream));
755         st->info = av_malloc(sizeof(*st->info));
756         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
757         avcodec_copy_context(st->codec, ic->streams[i]->codec);
758
759         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
760             if (audio_stream_copy) {
761                 st->stream_copy = 1;
762             } else
763                 choose_sample_fmt(st, codec);
764         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
765             if (video_stream_copy) {
766                 st->stream_copy = 1;
767             } else
768                 choose_pixel_fmt(st, codec);
769         }
770     }
771
772     av_close_input_file(ic);
773     return 0;
774 }
775
776 static double
777 get_sync_ipts(const OutputStream *ost)
778 {
779     const InputStream *ist = ost->sync_ist;
780     return (double)(ist->pts - start_time)/AV_TIME_BASE;
781 }
782
783 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
784     int ret;
785
786     while(bsfc){
787         AVPacket new_pkt= *pkt;
788         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
789                                           &new_pkt.data, &new_pkt.size,
790                                           pkt->data, pkt->size,
791                                           pkt->flags & AV_PKT_FLAG_KEY);
792         if(a>0){
793             av_free_packet(pkt);
794             new_pkt.destruct= av_destruct_packet;
795         } else if(a<0){
796             fprintf(stderr, "%s failed for stream %d, codec %s",
797                     bsfc->filter->name, pkt->stream_index,
798                     avctx->codec ? avctx->codec->name : "copy");
799             print_error("", a);
800             if (exit_on_error)
801                 ffmpeg_exit(1);
802         }
803         *pkt= new_pkt;
804
805         bsfc= bsfc->next;
806     }
807
808     ret= av_interleaved_write_frame(s, pkt);
809     if(ret < 0){
810         print_error("av_interleaved_write_frame()", ret);
811         ffmpeg_exit(1);
812     }
813 }
814
815 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
816
817 static void do_audio_out(AVFormatContext *s,
818                          OutputStream *ost,
819                          InputStream *ist,
820                          unsigned char *buf, int size)
821 {
822     uint8_t *buftmp;
823     int64_t audio_out_size, audio_buf_size;
824     int64_t allocated_for_size= size;
825
826     int size_out, frame_bytes, ret, resample_changed;
827     AVCodecContext *enc= ost->st->codec;
828     AVCodecContext *dec= ist->st->codec;
829     int osize = av_get_bytes_per_sample(enc->sample_fmt);
830     int isize = av_get_bytes_per_sample(dec->sample_fmt);
831     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
832
833 need_realloc:
834     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
835     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
836     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
837     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
838     audio_buf_size*= osize*enc->channels;
839
840     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
841     if(coded_bps > 8*osize)
842         audio_out_size= audio_out_size * coded_bps / (8*osize);
843     audio_out_size += FF_MIN_BUFFER_SIZE;
844
845     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
846         fprintf(stderr, "Buffer sizes too large\n");
847         ffmpeg_exit(1);
848     }
849
850     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
851     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
852     if (!audio_buf || !audio_out){
853         fprintf(stderr, "Out of memory in do_audio_out\n");
854         ffmpeg_exit(1);
855     }
856
857     if (enc->channels != dec->channels)
858         ost->audio_resample = 1;
859
860     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
861                        ost->resample_channels    != dec->channels   ||
862                        ost->resample_sample_rate != dec->sample_rate;
863
864     if ((ost->audio_resample && !ost->resample) || resample_changed) {
865         if (resample_changed) {
866             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",
867                    ist->file_index, ist->st->index,
868                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
869                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
870             ost->resample_sample_fmt  = dec->sample_fmt;
871             ost->resample_channels    = dec->channels;
872             ost->resample_sample_rate = dec->sample_rate;
873             if (ost->resample)
874                 audio_resample_close(ost->resample);
875         }
876         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
877         if (audio_sync_method <= 1 &&
878             ost->resample_sample_fmt  == enc->sample_fmt &&
879             ost->resample_channels    == enc->channels   &&
880             ost->resample_sample_rate == enc->sample_rate) {
881             ost->resample = NULL;
882             ost->audio_resample = 0;
883         } else {
884             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
885                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
886             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
887                                                    enc->sample_rate, dec->sample_rate,
888                                                    enc->sample_fmt,  dec->sample_fmt,
889                                                    16, 10, 0, 0.8);
890             if (!ost->resample) {
891                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
892                         dec->channels, dec->sample_rate,
893                         enc->channels, enc->sample_rate);
894                 ffmpeg_exit(1);
895             }
896         }
897     }
898
899 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
900     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
901         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
902         if (ost->reformat_ctx)
903             av_audio_convert_free(ost->reformat_ctx);
904         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
905                                                    dec->sample_fmt, 1, NULL, 0);
906         if (!ost->reformat_ctx) {
907             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
908                 av_get_sample_fmt_name(dec->sample_fmt),
909                 av_get_sample_fmt_name(enc->sample_fmt));
910             ffmpeg_exit(1);
911         }
912         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
913     }
914
915     if(audio_sync_method){
916         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
917                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
918         double idelta= delta*dec->sample_rate / enc->sample_rate;
919         int byte_delta= ((int)idelta)*2*dec->channels;
920
921         //FIXME resample delay
922         if(fabs(delta) > 50){
923             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
924                 if(byte_delta < 0){
925                     byte_delta= FFMAX(byte_delta, -size);
926                     size += byte_delta;
927                     buf  -= byte_delta;
928                     if(verbose > 2)
929                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
930                     if(!size)
931                         return;
932                     ist->is_start=0;
933                 }else{
934                     static uint8_t *input_tmp= NULL;
935                     input_tmp= av_realloc(input_tmp, byte_delta + size);
936
937                     if(byte_delta > allocated_for_size - size){
938                         allocated_for_size= byte_delta + (int64_t)size;
939                         goto need_realloc;
940                     }
941                     ist->is_start=0;
942
943                     memset(input_tmp, 0, byte_delta);
944                     memcpy(input_tmp + byte_delta, buf, size);
945                     buf= input_tmp;
946                     size += byte_delta;
947                     if(verbose > 2)
948                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
949                 }
950             }else if(audio_sync_method>1){
951                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
952                 av_assert0(ost->audio_resample);
953                 if(verbose > 2)
954                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
955 //                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));
956                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
957             }
958         }
959     }else
960         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
961                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
962
963     if (ost->audio_resample) {
964         buftmp = audio_buf;
965         size_out = audio_resample(ost->resample,
966                                   (short *)buftmp, (short *)buf,
967                                   size / (dec->channels * isize));
968         size_out = size_out * enc->channels * osize;
969     } else {
970         buftmp = buf;
971         size_out = size;
972     }
973
974     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
975         const void *ibuf[6]= {buftmp};
976         void *obuf[6]= {audio_buf};
977         int istride[6]= {isize};
978         int ostride[6]= {osize};
979         int len= size_out/istride[0];
980         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
981             printf("av_audio_convert() failed\n");
982             if (exit_on_error)
983                 ffmpeg_exit(1);
984             return;
985         }
986         buftmp = audio_buf;
987         size_out = len*osize;
988     }
989
990     /* now encode as many frames as possible */
991     if (enc->frame_size > 1) {
992         /* output resampled raw samples */
993         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
994             fprintf(stderr, "av_fifo_realloc2() failed\n");
995             ffmpeg_exit(1);
996         }
997         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
998
999         frame_bytes = enc->frame_size * osize * enc->channels;
1000
1001         while (av_fifo_size(ost->fifo) >= frame_bytes) {
1002             AVPacket pkt;
1003             av_init_packet(&pkt);
1004
1005             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1006
1007             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1008
1009             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
1010                                        (short *)audio_buf);
1011             if (ret < 0) {
1012                 fprintf(stderr, "Audio encoding failed\n");
1013                 ffmpeg_exit(1);
1014             }
1015             audio_size += ret;
1016             pkt.stream_index= ost->index;
1017             pkt.data= audio_out;
1018             pkt.size= ret;
1019             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1020                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1021             pkt.flags |= AV_PKT_FLAG_KEY;
1022             write_frame(s, &pkt, enc, ost->bitstream_filters);
1023
1024             ost->sync_opts += enc->frame_size;
1025         }
1026     } else {
1027         AVPacket pkt;
1028         av_init_packet(&pkt);
1029
1030         ost->sync_opts += size_out / (osize * enc->channels);
1031
1032         /* output a pcm frame */
1033         /* determine the size of the coded buffer */
1034         size_out /= osize;
1035         if (coded_bps)
1036             size_out = size_out*coded_bps/8;
1037
1038         if(size_out > audio_out_size){
1039             fprintf(stderr, "Internal error, buffer size too small\n");
1040             ffmpeg_exit(1);
1041         }
1042
1043         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1044         ret = avcodec_encode_audio(enc, audio_out, size_out,
1045                                    (short *)buftmp);
1046         if (ret < 0) {
1047             fprintf(stderr, "Audio encoding failed\n");
1048             ffmpeg_exit(1);
1049         }
1050         audio_size += ret;
1051         pkt.stream_index= ost->index;
1052         pkt.data= audio_out;
1053         pkt.size= ret;
1054         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1055             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1056         pkt.flags |= AV_PKT_FLAG_KEY;
1057         write_frame(s, &pkt, enc, ost->bitstream_filters);
1058     }
1059 }
1060
1061 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1062 {
1063     AVCodecContext *dec;
1064     AVPicture *picture2;
1065     AVPicture picture_tmp;
1066     uint8_t *buf = 0;
1067
1068     dec = ist->st->codec;
1069
1070     /* deinterlace : must be done before any resize */
1071     if (do_deinterlace) {
1072         int size;
1073
1074         /* create temporary picture */
1075         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1076         buf = av_malloc(size);
1077         if (!buf)
1078             return;
1079
1080         picture2 = &picture_tmp;
1081         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1082
1083         if(avpicture_deinterlace(picture2, picture,
1084                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1085             /* if error, do not deinterlace */
1086             fprintf(stderr, "Deinterlacing failed\n");
1087             av_free(buf);
1088             buf = NULL;
1089             picture2 = picture;
1090         }
1091     } else {
1092         picture2 = picture;
1093     }
1094
1095     if (picture != picture2)
1096         *picture = *picture2;
1097     *bufp = buf;
1098 }
1099
1100 /* we begin to correct av delay at this threshold */
1101 #define AV_DELAY_MAX 0.100
1102
1103 static void do_subtitle_out(AVFormatContext *s,
1104                             OutputStream *ost,
1105                             InputStream *ist,
1106                             AVSubtitle *sub,
1107                             int64_t pts)
1108 {
1109     static uint8_t *subtitle_out = NULL;
1110     int subtitle_out_max_size = 1024 * 1024;
1111     int subtitle_out_size, nb, i;
1112     AVCodecContext *enc;
1113     AVPacket pkt;
1114
1115     if (pts == AV_NOPTS_VALUE) {
1116         fprintf(stderr, "Subtitle packets must have a pts\n");
1117         if (exit_on_error)
1118             ffmpeg_exit(1);
1119         return;
1120     }
1121
1122     enc = ost->st->codec;
1123
1124     if (!subtitle_out) {
1125         subtitle_out = av_malloc(subtitle_out_max_size);
1126     }
1127
1128     /* Note: DVB subtitle need one packet to draw them and one other
1129        packet to clear them */
1130     /* XXX: signal it in the codec context ? */
1131     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1132         nb = 2;
1133     else
1134         nb = 1;
1135
1136     for(i = 0; i < nb; i++) {
1137         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1138         // start_display_time is required to be 0
1139         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1140         sub->end_display_time -= sub->start_display_time;
1141         sub->start_display_time = 0;
1142         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1143                                                     subtitle_out_max_size, sub);
1144         if (subtitle_out_size < 0) {
1145             fprintf(stderr, "Subtitle encoding failed\n");
1146             ffmpeg_exit(1);
1147         }
1148
1149         av_init_packet(&pkt);
1150         pkt.stream_index = ost->index;
1151         pkt.data = subtitle_out;
1152         pkt.size = subtitle_out_size;
1153         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1154         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1155             /* XXX: the pts correction is handled here. Maybe handling
1156                it in the codec would be better */
1157             if (i == 0)
1158                 pkt.pts += 90 * sub->start_display_time;
1159             else
1160                 pkt.pts += 90 * sub->end_display_time;
1161         }
1162         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1163     }
1164 }
1165
1166 static int bit_buffer_size= 1024*256;
1167 static uint8_t *bit_buffer= NULL;
1168
1169 static void do_video_out(AVFormatContext *s,
1170                          OutputStream *ost,
1171                          InputStream *ist,
1172                          AVFrame *in_picture,
1173                          int *frame_size, float quality)
1174 {
1175     int nb_frames, i, ret, av_unused resample_changed;
1176     AVFrame *final_picture, *formatted_picture;
1177     AVCodecContext *enc, *dec;
1178     double sync_ipts;
1179
1180     enc = ost->st->codec;
1181     dec = ist->st->codec;
1182
1183     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1184
1185     /* by default, we output a single frame */
1186     nb_frames = 1;
1187
1188     *frame_size = 0;
1189
1190     if(video_sync_method){
1191         double vdelta = sync_ipts - ost->sync_opts;
1192         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1193         if (vdelta < -1.1)
1194             nb_frames = 0;
1195         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1196             if(vdelta<=-0.6){
1197                 nb_frames=0;
1198             }else if(vdelta>0.6)
1199                 ost->sync_opts= lrintf(sync_ipts);
1200         }else if (vdelta > 1.1)
1201             nb_frames = lrintf(vdelta);
1202 //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);
1203         if (nb_frames == 0){
1204             ++nb_frames_drop;
1205             if (verbose>2)
1206                 fprintf(stderr, "*** drop!\n");
1207         }else if (nb_frames > 1) {
1208             nb_frames_dup += nb_frames - 1;
1209             if (verbose>2)
1210                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1211         }
1212     }else
1213         ost->sync_opts= lrintf(sync_ipts);
1214
1215     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1216     if (nb_frames <= 0)
1217         return;
1218
1219     formatted_picture = in_picture;
1220     final_picture = formatted_picture;
1221
1222 #if !CONFIG_AVFILTER
1223     resample_changed = ost->resample_width   != dec->width  ||
1224                        ost->resample_height  != dec->height ||
1225                        ost->resample_pix_fmt != dec->pix_fmt;
1226
1227     if (resample_changed) {
1228         av_log(NULL, AV_LOG_INFO,
1229                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1230                ist->file_index, ist->st->index,
1231                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1232                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1233         ost->resample_width   = dec->width;
1234         ost->resample_height  = dec->height;
1235         ost->resample_pix_fmt = dec->pix_fmt;
1236     }
1237
1238     ost->video_resample = dec->width   != enc->width  ||
1239                           dec->height  != enc->height ||
1240                           dec->pix_fmt != enc->pix_fmt;
1241
1242     if (ost->video_resample) {
1243         final_picture = &ost->resample_frame;
1244         if (!ost->img_resample_ctx || resample_changed) {
1245             /* initialize the destination picture */
1246             if (!ost->resample_frame.data[0]) {
1247                 avcodec_get_frame_defaults(&ost->resample_frame);
1248                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1249                                     enc->width, enc->height)) {
1250                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1251                     ffmpeg_exit(1);
1252                 }
1253             }
1254             /* initialize a new scaler context */
1255             sws_freeContext(ost->img_resample_ctx);
1256             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1257                                                    enc->width, enc->height, enc->pix_fmt,
1258                                                    ost->sws_flags, NULL, NULL, NULL);
1259             if (ost->img_resample_ctx == NULL) {
1260                 fprintf(stderr, "Cannot get resampling context\n");
1261                 ffmpeg_exit(1);
1262             }
1263         }
1264         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1265               0, ost->resample_height, final_picture->data, final_picture->linesize);
1266     }
1267 #endif
1268
1269     /* duplicates frame if needed */
1270     for(i=0;i<nb_frames;i++) {
1271         AVPacket pkt;
1272         av_init_packet(&pkt);
1273         pkt.stream_index= ost->index;
1274
1275         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1276             /* raw pictures are written as AVPicture structure to
1277                avoid any copies. We support temorarily the older
1278                method. */
1279             AVFrame* old_frame = enc->coded_frame;
1280             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1281             pkt.data= (uint8_t *)final_picture;
1282             pkt.size=  sizeof(AVPicture);
1283             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1284             pkt.flags |= AV_PKT_FLAG_KEY;
1285
1286             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1287             enc->coded_frame = old_frame;
1288         } else {
1289             AVFrame big_picture;
1290
1291             big_picture= *final_picture;
1292             /* better than nothing: use input picture interlaced
1293                settings */
1294             big_picture.interlaced_frame = in_picture->interlaced_frame;
1295             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1296                 if(top_field_first == -1)
1297                     big_picture.top_field_first = in_picture->top_field_first;
1298                 else
1299                     big_picture.top_field_first = top_field_first;
1300             }
1301
1302             /* handles sameq here. This is not correct because it may
1303                not be a global option */
1304             big_picture.quality = quality;
1305             if(!me_threshold)
1306                 big_picture.pict_type = 0;
1307 //            big_picture.pts = AV_NOPTS_VALUE;
1308             big_picture.pts= ost->sync_opts;
1309 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1310 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1311             if (ost->forced_kf_index < ost->forced_kf_count &&
1312                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1313                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1314                 ost->forced_kf_index++;
1315             }
1316             ret = avcodec_encode_video(enc,
1317                                        bit_buffer, bit_buffer_size,
1318                                        &big_picture);
1319             if (ret < 0) {
1320                 fprintf(stderr, "Video encoding failed\n");
1321                 ffmpeg_exit(1);
1322             }
1323
1324             if(ret>0){
1325                 pkt.data= bit_buffer;
1326                 pkt.size= ret;
1327                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1328                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1329 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1330    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1331    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1332
1333                 if(enc->coded_frame->key_frame)
1334                     pkt.flags |= AV_PKT_FLAG_KEY;
1335                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1336                 *frame_size = ret;
1337                 video_size += ret;
1338                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1339                 //        enc->frame_number-1, ret, enc->pict_type);
1340                 /* if two pass, output log */
1341                 if (ost->logfile && enc->stats_out) {
1342                     fprintf(ost->logfile, "%s", enc->stats_out);
1343                 }
1344             }
1345         }
1346         ost->sync_opts++;
1347         ost->frame_number++;
1348     }
1349 }
1350
1351 static double psnr(double d){
1352     return -10.0*log(d)/log(10.0);
1353 }
1354
1355 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1356                            int frame_size)
1357 {
1358     AVCodecContext *enc;
1359     int frame_number;
1360     double ti1, bitrate, avg_bitrate;
1361
1362     /* this is executed just the first time do_video_stats is called */
1363     if (!vstats_file) {
1364         vstats_file = fopen(vstats_filename, "w");
1365         if (!vstats_file) {
1366             perror("fopen");
1367             ffmpeg_exit(1);
1368         }
1369     }
1370
1371     enc = ost->st->codec;
1372     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1373         frame_number = ost->frame_number;
1374         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1375         if (enc->flags&CODEC_FLAG_PSNR)
1376             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1377
1378         fprintf(vstats_file,"f_size= %6d ", frame_size);
1379         /* compute pts value */
1380         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1381         if (ti1 < 0.01)
1382             ti1 = 0.01;
1383
1384         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1385         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1386         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1387             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1388         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1389     }
1390 }
1391
1392 static void print_report(AVFormatContext **output_files,
1393                          OutputStream **ost_table, int nb_ostreams,
1394                          int is_last_report)
1395 {
1396     char buf[1024];
1397     OutputStream *ost;
1398     AVFormatContext *oc;
1399     int64_t total_size;
1400     AVCodecContext *enc;
1401     int frame_number, vid, i;
1402     double bitrate;
1403     int64_t pts = INT64_MAX;
1404     static int64_t last_time = -1;
1405     static int qp_histogram[52];
1406
1407     if (!is_last_report) {
1408         int64_t cur_time;
1409         /* display the report every 0.5 seconds */
1410         cur_time = av_gettime();
1411         if (last_time == -1) {
1412             last_time = cur_time;
1413             return;
1414         }
1415         if ((cur_time - last_time) < 500000)
1416             return;
1417         last_time = cur_time;
1418     }
1419
1420
1421     oc = output_files[0];
1422
1423     total_size = avio_size(oc->pb);
1424     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1425         total_size= avio_tell(oc->pb);
1426
1427     buf[0] = '\0';
1428     vid = 0;
1429     for(i=0;i<nb_ostreams;i++) {
1430         float q = -1;
1431         ost = ost_table[i];
1432         enc = ost->st->codec;
1433         if (!ost->st->stream_copy && enc->coded_frame)
1434             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1435         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1436             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1437         }
1438         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1439             float t = (av_gettime()-timer_start) / 1000000.0;
1440
1441             frame_number = ost->frame_number;
1442             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1443                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1444             if(is_last_report)
1445                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1446             if(qp_hist){
1447                 int j;
1448                 int qp = lrintf(q);
1449                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1450                     qp_histogram[qp]++;
1451                 for(j=0; j<32; j++)
1452                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1453             }
1454             if (enc->flags&CODEC_FLAG_PSNR){
1455                 int j;
1456                 double error, error_sum=0;
1457                 double scale, scale_sum=0;
1458                 char type[3]= {'Y','U','V'};
1459                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1460                 for(j=0; j<3; j++){
1461                     if(is_last_report){
1462                         error= enc->error[j];
1463                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1464                     }else{
1465                         error= enc->coded_frame->error[j];
1466                         scale= enc->width*enc->height*255.0*255.0;
1467                     }
1468                     if(j) scale/=4;
1469                     error_sum += error;
1470                     scale_sum += scale;
1471                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1472                 }
1473                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1474             }
1475             vid = 1;
1476         }
1477         /* compute min output value */
1478         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1479                                       ost->st->time_base, AV_TIME_BASE_Q));
1480     }
1481
1482     if (verbose > 0 || is_last_report) {
1483         int hours, mins, secs, us;
1484         secs = pts / AV_TIME_BASE;
1485         us = pts % AV_TIME_BASE;
1486         mins = secs / 60;
1487         secs %= 60;
1488         hours = mins / 60;
1489         mins %= 60;
1490
1491         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1492
1493         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1494                  "size=%8.0fkB time=", total_size / 1024.0);
1495         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1496                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1497                  (100 * us) / AV_TIME_BASE);
1498         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1499                  "bitrate=%6.1fkbits/s", bitrate);
1500
1501         if (nb_frames_dup || nb_frames_drop)
1502           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1503                   nb_frames_dup, nb_frames_drop);
1504
1505         if (verbose >= 0)
1506             fprintf(stderr, "%s    \r", buf);
1507
1508         fflush(stderr);
1509     }
1510
1511     if (is_last_report && verbose >= 0){
1512         int64_t raw= audio_size + video_size + extra_size;
1513         fprintf(stderr, "\n");
1514         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1515                 video_size/1024.0,
1516                 audio_size/1024.0,
1517                 extra_size/1024.0,
1518                 100.0*(total_size - raw)/raw
1519         );
1520     }
1521 }
1522
1523 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1524 {
1525     int fill_char = 0x00;
1526     if (sample_fmt == AV_SAMPLE_FMT_U8)
1527         fill_char = 0x80;
1528     memset(buf, fill_char, size);
1529 }
1530
1531 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1532 static int output_packet(InputStream *ist, int ist_index,
1533                          OutputStream **ost_table, int nb_ostreams,
1534                          const AVPacket *pkt)
1535 {
1536     AVFormatContext *os;
1537     OutputStream *ost;
1538     int ret, i;
1539     int got_output;
1540     AVFrame picture;
1541     void *buffer_to_free = NULL;
1542     static unsigned int samples_size= 0;
1543     AVSubtitle subtitle, *subtitle_to_free;
1544     int64_t pkt_pts = AV_NOPTS_VALUE;
1545 #if CONFIG_AVFILTER
1546     int frame_available;
1547 #endif
1548     float quality;
1549
1550     AVPacket avpkt;
1551     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1552
1553     if(ist->next_pts == AV_NOPTS_VALUE)
1554         ist->next_pts= ist->pts;
1555
1556     if (pkt == NULL) {
1557         /* EOF handling */
1558         av_init_packet(&avpkt);
1559         avpkt.data = NULL;
1560         avpkt.size = 0;
1561         goto handle_eof;
1562     } else {
1563         avpkt = *pkt;
1564     }
1565
1566     if(pkt->dts != AV_NOPTS_VALUE)
1567         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1568     if(pkt->pts != AV_NOPTS_VALUE)
1569         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1570
1571     //while we have more to decode or while the decoder did output something on EOF
1572     while (avpkt.size > 0 || (!pkt && got_output)) {
1573         uint8_t *data_buf, *decoded_data_buf;
1574         int data_size, decoded_data_size;
1575     handle_eof:
1576         ist->pts= ist->next_pts;
1577
1578         if(avpkt.size && avpkt.size != pkt->size &&
1579            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1580             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1581             ist->showed_multi_packet_warning=1;
1582         }
1583
1584         /* decode the packet if needed */
1585         decoded_data_buf = NULL; /* fail safe */
1586         decoded_data_size= 0;
1587         data_buf  = avpkt.data;
1588         data_size = avpkt.size;
1589         subtitle_to_free = NULL;
1590         if (ist->decoding_needed) {
1591             switch(ist->st->codec->codec_type) {
1592             case AVMEDIA_TYPE_AUDIO:{
1593                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1594                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1595                     av_free(samples);
1596                     samples= av_malloc(samples_size);
1597                 }
1598                 decoded_data_size= samples_size;
1599                     /* XXX: could avoid copy if PCM 16 bits with same
1600                        endianness as CPU */
1601                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1602                                             &avpkt);
1603                 if (ret < 0)
1604                     return ret;
1605                 avpkt.data += ret;
1606                 avpkt.size -= ret;
1607                 data_size   = ret;
1608                 got_output  = decoded_data_size > 0;
1609                 /* Some bug in mpeg audio decoder gives */
1610                 /* decoded_data_size < 0, it seems they are overflows */
1611                 if (!got_output) {
1612                     /* no audio frame */
1613                     continue;
1614                 }
1615                 decoded_data_buf = (uint8_t *)samples;
1616                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1617                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1618                 break;}
1619             case AVMEDIA_TYPE_VIDEO:
1620                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1621                     /* XXX: allocate picture correctly */
1622                     avcodec_get_frame_defaults(&picture);
1623                     avpkt.pts = pkt_pts;
1624                     avpkt.dts = ist->pts;
1625                     pkt_pts = AV_NOPTS_VALUE;
1626
1627                     ret = avcodec_decode_video2(ist->st->codec,
1628                                                 &picture, &got_output, &avpkt);
1629                     quality = same_quality ? picture.quality : 0;
1630                     if (ret < 0)
1631                         return ret;
1632                     if (!got_output) {
1633                         /* no picture yet */
1634                         goto discard_packet;
1635                     }
1636                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1637                     if (ist->st->codec->time_base.num != 0) {
1638                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1639                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1640                                           ist->st->codec->time_base.num * ticks) /
1641                             ist->st->codec->time_base.den;
1642                     }
1643                     avpkt.size = 0;
1644                     buffer_to_free = NULL;
1645                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1646                     break;
1647             case AVMEDIA_TYPE_SUBTITLE:
1648                 ret = avcodec_decode_subtitle2(ist->st->codec,
1649                                                &subtitle, &got_output, &avpkt);
1650                 if (ret < 0)
1651                     return ret;
1652                 if (!got_output) {
1653                     goto discard_packet;
1654                 }
1655                 subtitle_to_free = &subtitle;
1656                 avpkt.size = 0;
1657                 break;
1658             default:
1659                 return -1;
1660             }
1661         } else {
1662             switch(ist->st->codec->codec_type) {
1663             case AVMEDIA_TYPE_AUDIO:
1664                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1665                     ist->st->codec->sample_rate;
1666                 break;
1667             case AVMEDIA_TYPE_VIDEO:
1668                 if (ist->st->codec->time_base.num != 0) {
1669                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1670                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1671                                       ist->st->codec->time_base.num * ticks) /
1672                         ist->st->codec->time_base.den;
1673                 }
1674                 break;
1675             }
1676             ret = avpkt.size;
1677             avpkt.size = 0;
1678         }
1679
1680 #if CONFIG_AVFILTER
1681         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1682         if (start_time == 0 || ist->pts >= start_time) {
1683             for(i=0;i<nb_ostreams;i++) {
1684                 ost = ost_table[i];
1685                 if (ost->input_video_filter && ost->source_index == ist_index) {
1686                     if (!picture.sample_aspect_ratio.num)
1687                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1688                     picture.pts = ist->pts;
1689
1690                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1691                 }
1692             }
1693         }
1694 #endif
1695
1696         // preprocess audio (volume)
1697         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1698             if (audio_volume != 256) {
1699                 short *volp;
1700                 volp = samples;
1701                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1702                     int v = ((*volp) * audio_volume + 128) >> 8;
1703                     if (v < -32768) v = -32768;
1704                     if (v >  32767) v = 32767;
1705                     *volp++ = v;
1706                 }
1707             }
1708         }
1709
1710         /* frame rate emulation */
1711         if (rate_emu) {
1712             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1713             int64_t now = av_gettime() - ist->start;
1714             if (pts > now)
1715                 usleep(pts - now);
1716         }
1717         /* if output time reached then transcode raw format,
1718            encode packets and output them */
1719         if (start_time == 0 || ist->pts >= start_time)
1720             for(i=0;i<nb_ostreams;i++) {
1721                 int frame_size;
1722
1723                 ost = ost_table[i];
1724
1725                 /* finish if recording time exhausted */
1726                 if (recording_time != INT64_MAX &&
1727                         av_compare_ts(ist->pts, AV_TIME_BASE_Q, recording_time + start_time, (AVRational){1, 1000000})
1728                     >= 0) {
1729                     ist->is_past_recording_time = 1;
1730                     continue;
1731                 }
1732                 if (ost->source_index == ist_index) {
1733 #if CONFIG_AVFILTER
1734                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1735                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1736                 while (frame_available) {
1737                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1738                         AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1739                         if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1740                             goto cont;
1741                         if (ost->picref) {
1742                             avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1743                             ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1744                         }
1745                     }
1746 #endif
1747                     os = output_files[ost->file_index];
1748
1749                     /* set the input output pts pairs */
1750                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1751
1752                     if (ost->encoding_needed) {
1753                         av_assert0(ist->decoding_needed);
1754                         switch(ost->st->codec->codec_type) {
1755                         case AVMEDIA_TYPE_AUDIO:
1756                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1757                             break;
1758                         case AVMEDIA_TYPE_VIDEO:
1759 #if CONFIG_AVFILTER
1760                             if (ost->picref->video && !ost->frame_aspect_ratio)
1761                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1762 #endif
1763                             do_video_out(os, ost, ist, &picture, &frame_size,
1764                                          same_quality ? quality : ost->st->codec->global_quality);
1765                             if (vstats_filename && frame_size)
1766                                 do_video_stats(os, ost, frame_size);
1767                             break;
1768                         case AVMEDIA_TYPE_SUBTITLE:
1769                             do_subtitle_out(os, ost, ist, &subtitle,
1770                                             pkt->pts);
1771                             break;
1772                         default:
1773                             abort();
1774                         }
1775                     } else {
1776                         AVFrame avframe; //FIXME/XXX remove this
1777                         AVPicture pict;
1778                         AVPacket opkt;
1779                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1780
1781                         av_init_packet(&opkt);
1782
1783                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1784 #if !CONFIG_AVFILTER
1785                             continue;
1786 #else
1787                             goto cont;
1788 #endif
1789
1790                         /* no reencoding needed : output the packet directly */
1791                         /* force the input stream PTS */
1792
1793                         avcodec_get_frame_defaults(&avframe);
1794                         ost->st->codec->coded_frame= &avframe;
1795                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1796
1797                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1798                             audio_size += data_size;
1799                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1800                             video_size += data_size;
1801                             ost->sync_opts++;
1802                         }
1803
1804                         opkt.stream_index= ost->index;
1805                         if(pkt->pts != AV_NOPTS_VALUE)
1806                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1807                         else
1808                             opkt.pts= AV_NOPTS_VALUE;
1809
1810                         if (pkt->dts == AV_NOPTS_VALUE)
1811                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1812                         else
1813                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1814                         opkt.dts -= ost_tb_start_time;
1815
1816                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1817                         opkt.flags= pkt->flags;
1818
1819                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1820                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1821                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1822                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1823                            ) {
1824                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1825                                 opkt.destruct= av_destruct_packet;
1826                         } else {
1827                             opkt.data = data_buf;
1828                             opkt.size = data_size;
1829                         }
1830
1831                         if (os->oformat->flags & AVFMT_RAWPICTURE) {
1832                             /* store AVPicture in AVPacket, as expected by the output format */
1833                             avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1834                             opkt.data = (uint8_t *)&pict;
1835                             opkt.size = sizeof(AVPicture);
1836                             opkt.flags |= AV_PKT_FLAG_KEY;
1837                         }
1838                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1839                         ost->st->codec->frame_number++;
1840                         ost->frame_number++;
1841                         av_free_packet(&opkt);
1842                     }
1843 #if CONFIG_AVFILTER
1844                     cont:
1845                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1846                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1847                     avfilter_unref_buffer(ost->picref);
1848                 }
1849 #endif
1850                 }
1851             }
1852
1853         av_free(buffer_to_free);
1854         /* XXX: allocate the subtitles in the codec ? */
1855         if (subtitle_to_free) {
1856             avsubtitle_free(subtitle_to_free);
1857             subtitle_to_free = NULL;
1858         }
1859     }
1860  discard_packet:
1861     if (pkt == NULL) {
1862         /* EOF handling */
1863
1864         for(i=0;i<nb_ostreams;i++) {
1865             ost = ost_table[i];
1866             if (ost->source_index == ist_index) {
1867                 AVCodecContext *enc= ost->st->codec;
1868                 os = output_files[ost->file_index];
1869
1870                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1871                     continue;
1872                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1873                     continue;
1874
1875                 if (ost->encoding_needed) {
1876                     for(;;) {
1877                         AVPacket pkt;
1878                         int fifo_bytes;
1879                         av_init_packet(&pkt);
1880                         pkt.stream_index= ost->index;
1881
1882                         switch(ost->st->codec->codec_type) {
1883                         case AVMEDIA_TYPE_AUDIO:
1884                             fifo_bytes = av_fifo_size(ost->fifo);
1885                             ret = 0;
1886                             /* encode any samples remaining in fifo */
1887                             if (fifo_bytes > 0) {
1888                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1889                                 int fs_tmp = enc->frame_size;
1890
1891                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1892                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1893                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1894                                 } else { /* pad */
1895                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1896                                     if (allocated_audio_buf_size < frame_bytes)
1897                                         ffmpeg_exit(1);
1898                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1899                                 }
1900
1901                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1902                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1903                                                           ost->st->time_base.num, enc->sample_rate);
1904                                 enc->frame_size = fs_tmp;
1905                             }
1906                             if(ret <= 0) {
1907                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1908                             }
1909                             if (ret < 0) {
1910                                 fprintf(stderr, "Audio encoding failed\n");
1911                                 ffmpeg_exit(1);
1912                             }
1913                             audio_size += ret;
1914                             pkt.flags |= AV_PKT_FLAG_KEY;
1915                             break;
1916                         case AVMEDIA_TYPE_VIDEO:
1917                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1918                             if (ret < 0) {
1919                                 fprintf(stderr, "Video encoding failed\n");
1920                                 ffmpeg_exit(1);
1921                             }
1922                             video_size += ret;
1923                             if(enc->coded_frame && enc->coded_frame->key_frame)
1924                                 pkt.flags |= AV_PKT_FLAG_KEY;
1925                             if (ost->logfile && enc->stats_out) {
1926                                 fprintf(ost->logfile, "%s", enc->stats_out);
1927                             }
1928                             break;
1929                         default:
1930                             ret=-1;
1931                         }
1932
1933                         if(ret<=0)
1934                             break;
1935                         pkt.data= bit_buffer;
1936                         pkt.size= ret;
1937                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1938                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1939                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1940                     }
1941                 }
1942             }
1943         }
1944     }
1945
1946     return 0;
1947 }
1948
1949 static void print_sdp(AVFormatContext **avc, int n)
1950 {
1951     char sdp[2048];
1952
1953     av_sdp_create(avc, n, sdp, sizeof(sdp));
1954     printf("SDP:\n%s\n", sdp);
1955     fflush(stdout);
1956 }
1957
1958 static int copy_chapters(int infile, int outfile)
1959 {
1960     AVFormatContext *is = input_files[infile].ctx;
1961     AVFormatContext *os = output_files[outfile];
1962     int i;
1963
1964     for (i = 0; i < is->nb_chapters; i++) {
1965         AVChapter *in_ch = is->chapters[i], *out_ch;
1966         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1967                                       AV_TIME_BASE_Q, in_ch->time_base);
1968         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1969                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1970
1971
1972         if (in_ch->end < ts_off)
1973             continue;
1974         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1975             break;
1976
1977         out_ch = av_mallocz(sizeof(AVChapter));
1978         if (!out_ch)
1979             return AVERROR(ENOMEM);
1980
1981         out_ch->id        = in_ch->id;
1982         out_ch->time_base = in_ch->time_base;
1983         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1984         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1985
1986         if (metadata_chapters_autocopy)
1987             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1988
1989         os->nb_chapters++;
1990         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1991         if (!os->chapters)
1992             return AVERROR(ENOMEM);
1993         os->chapters[os->nb_chapters - 1] = out_ch;
1994     }
1995     return 0;
1996 }
1997
1998 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1999                                     AVCodecContext *avctx)
2000 {
2001     char *p;
2002     int n = 1, i;
2003     int64_t t;
2004
2005     for (p = kf; *p; p++)
2006         if (*p == ',')
2007             n++;
2008     ost->forced_kf_count = n;
2009     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2010     if (!ost->forced_kf_pts) {
2011         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2012         ffmpeg_exit(1);
2013     }
2014     for (i = 0; i < n; i++) {
2015         p = i ? strchr(p, ',') + 1 : kf;
2016         t = parse_time_or_die("force_key_frames", p, 1);
2017         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2018     }
2019 }
2020
2021 /*
2022  * The following code is the main loop of the file converter
2023  */
2024 static int transcode(AVFormatContext **output_files,
2025                      int nb_output_files,
2026                      InputFile *input_files,
2027                      int nb_input_files,
2028                      StreamMap *stream_maps, int nb_stream_maps)
2029 {
2030     int ret = 0, i, j, k, n, nb_ostreams = 0, step;
2031
2032     AVFormatContext *is, *os;
2033     AVCodecContext *codec, *icodec;
2034     OutputStream *ost, **ost_table = NULL;
2035     InputStream *ist;
2036     char error[1024];
2037     int key;
2038     int want_sdp = 1;
2039     uint8_t no_packet[MAX_FILES]={0};
2040     int no_packet_count=0;
2041     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
2042     int nb_streams[AVMEDIA_TYPE_NB]={0};
2043
2044     if (rate_emu)
2045         for (i = 0; i < nb_input_streams; i++)
2046             input_streams[i].start = av_gettime();
2047
2048     /* output stream init */
2049     nb_ostreams = 0;
2050     for(i=0;i<nb_output_files;i++) {
2051         os = output_files[i];
2052         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2053             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2054             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2055             ret = AVERROR(EINVAL);
2056             goto fail;
2057         }
2058         nb_ostreams += os->nb_streams;
2059     }
2060     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2061         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2062         ret = AVERROR(EINVAL);
2063         goto fail;
2064     }
2065
2066     /* Sanity check the mapping args -- do the input files & streams exist? */
2067     for(i=0;i<nb_stream_maps;i++) {
2068         int fi = stream_maps[i].file_index;
2069         int si = stream_maps[i].stream_index;
2070
2071         if (fi < 0 || fi > nb_input_files - 1 ||
2072             si < 0 || si > input_files[fi].nb_streams - 1) {
2073             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2074             ret = AVERROR(EINVAL);
2075             goto fail;
2076         }
2077         fi = stream_maps[i].sync_file_index;
2078         si = stream_maps[i].sync_stream_index;
2079         if (fi < 0 || fi > nb_input_files - 1 ||
2080             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2081             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2082             ret = AVERROR(EINVAL);
2083             goto fail;
2084         }
2085     }
2086
2087     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2088     if (!ost_table)
2089         goto fail;
2090
2091     for(k=0;k<nb_output_files;k++) {
2092         os = output_files[k];
2093         for(i=0;i<os->nb_streams;i++,n++) {
2094             nb_streams[os->streams[i]->codec->codec_type]++;
2095         }
2096     }
2097     for(step=1<<30; step; step>>=1){
2098         int found_streams[AVMEDIA_TYPE_NB]={0};
2099         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2100             nb_frame_threshold[j] += step;
2101
2102         for(j=0; j<nb_input_streams; j++) {
2103             int skip=0;
2104             ist = &input_streams[j];
2105             if(opt_programid){
2106                 int pi,si;
2107                 AVFormatContext *f= input_files[ ist->file_index ].ctx;
2108                 skip=1;
2109                 for(pi=0; pi<f->nb_programs; pi++){
2110                     AVProgram *p= f->programs[pi];
2111                     if(p->id == opt_programid)
2112                         for(si=0; si<p->nb_stream_indexes; si++){
2113                             if(f->streams[ p->stream_index[si] ] == ist->st)
2114                                 skip=0;
2115                         }
2116                 }
2117             }
2118             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2119                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2120                 found_streams[ist->st->codec->codec_type]++;
2121             }
2122         }
2123         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2124             if(found_streams[j] < nb_streams[j])
2125                 nb_frame_threshold[j] -= step;
2126     }
2127     n = 0;
2128     for(k=0;k<nb_output_files;k++) {
2129         os = output_files[k];
2130         for(i=0;i<os->nb_streams;i++,n++) {
2131             int found;
2132             ost = ost_table[n] = output_streams_for_file[k][i];
2133             if (nb_stream_maps > 0) {
2134                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2135                     stream_maps[n].stream_index;
2136
2137                 /* Sanity check that the stream types match */
2138                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2139                     int i= ost->file_index;
2140                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2141                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2142                         stream_maps[n].file_index, stream_maps[n].stream_index,
2143                         ost->file_index, ost->index);
2144                     ffmpeg_exit(1);
2145                 }
2146
2147             } else {
2148                 /* get corresponding input stream index : we select the first one with the right type */
2149                 found = 0;
2150                 for (j = 0; j < nb_input_streams; j++) {
2151                     int skip=0;
2152                     ist = &input_streams[j];
2153                     if(opt_programid){
2154                         int pi,si;
2155                         AVFormatContext *f = input_files[ist->file_index].ctx;
2156                         skip=1;
2157                         for(pi=0; pi<f->nb_programs; pi++){
2158                             AVProgram *p= f->programs[pi];
2159                             if(p->id == opt_programid)
2160                                 for(si=0; si<p->nb_stream_indexes; si++){
2161                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2162                                         skip=0;
2163                                 }
2164                         }
2165                     }
2166                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2167                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2168                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2169                             ost->source_index = j;
2170                             found = 1;
2171                             break;
2172                     }
2173                 }
2174
2175                 if (!found) {
2176                     if(! opt_programid) {
2177                         /* try again and reuse existing stream */
2178                         for (j = 0; j < nb_input_streams; j++) {
2179                             ist = &input_streams[j];
2180                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2181                                 && ist->st->discard != AVDISCARD_ALL) {
2182                                 ost->source_index = j;
2183                                 found = 1;
2184                             }
2185                         }
2186                     }
2187                     if (!found) {
2188                         int i= ost->file_index;
2189                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2190                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2191                                 ost->file_index, ost->index);
2192                         ffmpeg_exit(1);
2193                     }
2194                 }
2195             }
2196             ist = &input_streams[ost->source_index];
2197             ist->discard = 0;
2198             ost->sync_ist = (nb_stream_maps > 0) ?
2199                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2200                          stream_maps[n].sync_stream_index] : ist;
2201         }
2202     }
2203
2204     /* for each output stream, we compute the right encoding parameters */
2205     for(i=0;i<nb_ostreams;i++) {
2206         ost = ost_table[i];
2207         os = output_files[ost->file_index];
2208         ist = &input_streams[ost->source_index];
2209
2210         codec = ost->st->codec;
2211         icodec = ist->st->codec;
2212
2213         if (metadata_streams_autocopy)
2214             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2215                          AV_DICT_DONT_OVERWRITE);
2216
2217         ost->st->disposition = ist->st->disposition;
2218         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2219         codec->chroma_sample_location = icodec->chroma_sample_location;
2220
2221         if (ost->st->stream_copy) {
2222             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2223
2224             if (extra_size > INT_MAX)
2225                 goto fail;
2226
2227             /* if stream_copy is selected, no need to decode or encode */
2228             codec->codec_id = icodec->codec_id;
2229             codec->codec_type = icodec->codec_type;
2230
2231             if(!codec->codec_tag){
2232                 if(   !os->oformat->codec_tag
2233                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2234                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2235                     codec->codec_tag = icodec->codec_tag;
2236             }
2237
2238             codec->bit_rate = icodec->bit_rate;
2239             codec->rc_max_rate    = icodec->rc_max_rate;
2240             codec->rc_buffer_size = icodec->rc_buffer_size;
2241             codec->extradata= av_mallocz(extra_size);
2242             if (!codec->extradata)
2243                 goto fail;
2244             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2245             codec->extradata_size= icodec->extradata_size;
2246
2247             codec->time_base = ist->st->time_base;
2248             if(!strcmp(os->oformat->name, "avi")) {
2249                 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){
2250                     codec->time_base = icodec->time_base;
2251                     codec->time_base.num *= icodec->ticks_per_frame;
2252                     codec->time_base.den *= 2;
2253                 }
2254             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2255                 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){
2256                     codec->time_base = icodec->time_base;
2257                     codec->time_base.num *= icodec->ticks_per_frame;
2258                 }
2259             }
2260             av_reduce(&codec->time_base.num, &codec->time_base.den,
2261                         codec->time_base.num, codec->time_base.den, INT_MAX);
2262
2263             switch(codec->codec_type) {
2264             case AVMEDIA_TYPE_AUDIO:
2265                 if(audio_volume != 256) {
2266                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2267                     ffmpeg_exit(1);
2268                 }
2269                 codec->channel_layout = icodec->channel_layout;
2270                 codec->sample_rate = icodec->sample_rate;
2271                 codec->channels = icodec->channels;
2272                 codec->frame_size = icodec->frame_size;
2273                 codec->audio_service_type = icodec->audio_service_type;
2274                 codec->block_align= icodec->block_align;
2275                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2276                     codec->block_align= 0;
2277                 if(codec->codec_id == CODEC_ID_AC3)
2278                     codec->block_align= 0;
2279                 break;
2280             case AVMEDIA_TYPE_VIDEO:
2281                 codec->pix_fmt = icodec->pix_fmt;
2282                 codec->width = icodec->width;
2283                 codec->height = icodec->height;
2284                 codec->has_b_frames = icodec->has_b_frames;
2285                 if (!codec->sample_aspect_ratio.num) {
2286                     codec->sample_aspect_ratio =
2287                     ost->st->sample_aspect_ratio =
2288                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2289                         ist->st->codec->sample_aspect_ratio.num ?
2290                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2291                 }
2292                 break;
2293             case AVMEDIA_TYPE_SUBTITLE:
2294                 codec->width = icodec->width;
2295                 codec->height = icodec->height;
2296                 break;
2297             case AVMEDIA_TYPE_DATA:
2298                 break;
2299             default:
2300                 abort();
2301             }
2302         } else {
2303             if (!ost->enc)
2304                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2305             switch(codec->codec_type) {
2306             case AVMEDIA_TYPE_AUDIO:
2307                 ost->fifo= av_fifo_alloc(1024);
2308                 if(!ost->fifo)
2309                     goto fail;
2310                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2311                 if (!codec->sample_rate) {
2312                     codec->sample_rate = icodec->sample_rate;
2313                 }
2314                 choose_sample_rate(ost->st, ost->enc);
2315                 codec->time_base = (AVRational){1, codec->sample_rate};
2316                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2317                     codec->sample_fmt = icodec->sample_fmt;
2318                 choose_sample_fmt(ost->st, ost->enc);
2319                 if (!codec->channels) {
2320                     codec->channels = icodec->channels;
2321                     codec->channel_layout = icodec->channel_layout;
2322                 }
2323                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2324                     codec->channel_layout = 0;
2325                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2326                 icodec->request_channels = codec->channels;
2327                 ist->decoding_needed = 1;
2328                 ost->encoding_needed = 1;
2329                 ost->resample_sample_fmt  = icodec->sample_fmt;
2330                 ost->resample_sample_rate = icodec->sample_rate;
2331                 ost->resample_channels    = icodec->channels;
2332                 break;
2333             case AVMEDIA_TYPE_VIDEO:
2334                 if (codec->pix_fmt == PIX_FMT_NONE)
2335                     codec->pix_fmt = icodec->pix_fmt;
2336                 choose_pixel_fmt(ost->st, ost->enc);
2337
2338                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2339                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2340                     ffmpeg_exit(1);
2341                 }
2342
2343                 if (!codec->width || !codec->height) {
2344                     codec->width  = icodec->width;
2345                     codec->height = icodec->height;
2346                 }
2347
2348                 ost->video_resample = codec->width   != icodec->width  ||
2349                                       codec->height  != icodec->height ||
2350                                       codec->pix_fmt != icodec->pix_fmt;
2351                 if (ost->video_resample) {
2352                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2353                 }
2354
2355                 ost->resample_height = icodec->height;
2356                 ost->resample_width  = icodec->width;
2357                 ost->resample_pix_fmt= icodec->pix_fmt;
2358                 ost->encoding_needed = 1;
2359                 ist->decoding_needed = 1;
2360
2361                 if (!ost->frame_rate.num)
2362                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2363                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2364                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2365                     ost->frame_rate = ost->enc->supported_framerates[idx];
2366                 }
2367                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2368                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2369                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2370                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2371                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2372                 }
2373
2374 #if CONFIG_AVFILTER
2375                 if (configure_video_filters(ist, ost)) {
2376                     fprintf(stderr, "Error opening filters!\n");
2377                     exit(1);
2378                 }
2379 #endif
2380                 break;
2381             case AVMEDIA_TYPE_SUBTITLE:
2382                 ost->encoding_needed = 1;
2383                 ist->decoding_needed = 1;
2384                 break;
2385             default:
2386                 abort();
2387                 break;
2388             }
2389             /* two pass mode */
2390             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2391                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2392                 char logfilename[1024];
2393                 FILE *f;
2394
2395                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2396                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2397                          i);
2398                 if (codec->flags & CODEC_FLAG_PASS1) {
2399                     f = fopen(logfilename, "wb");
2400                     if (!f) {
2401                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2402                         ffmpeg_exit(1);
2403                     }
2404                     ost->logfile = f;
2405                 } else {
2406                     char  *logbuffer;
2407                     size_t logbuffer_size;
2408                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2409                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2410                         ffmpeg_exit(1);
2411                     }
2412                     codec->stats_in = logbuffer;
2413                 }
2414             }
2415         }
2416         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2417             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2418             int size= codec->width * codec->height;
2419             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2420         }
2421     }
2422
2423     if (!bit_buffer)
2424         bit_buffer = av_malloc(bit_buffer_size);
2425     if (!bit_buffer) {
2426         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2427                 bit_buffer_size);
2428         ret = AVERROR(ENOMEM);
2429         goto fail;
2430     }
2431
2432     /* open each encoder */
2433     for(i=0;i<nb_ostreams;i++) {
2434         ost = ost_table[i];
2435         if (ost->encoding_needed) {
2436             AVCodec *codec = ost->enc;
2437             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2438             if (!codec) {
2439                 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d.%d",
2440                          avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2441                 ret = AVERROR(EINVAL);
2442                 goto dump_format;
2443             }
2444             if (dec->subtitle_header) {
2445                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2446                 if (!ost->st->codec->subtitle_header) {
2447                     ret = AVERROR(ENOMEM);
2448                     goto dump_format;
2449                 }
2450                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2451                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2452             }
2453             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2454                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2455                         ost->file_index, ost->index);
2456                 ret = AVERROR(EINVAL);
2457                 goto dump_format;
2458             }
2459             assert_codec_experimental(ost->st->codec, 1);
2460             assert_avoptions(ost->opts);
2461             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2462                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2463                                              "It takes bits/s as argument, not kbits/s\n");
2464             extra_size += ost->st->codec->extradata_size;
2465         }
2466     }
2467
2468     /* open each decoder */
2469     for (i = 0; i < nb_input_streams; i++) {
2470         ist = &input_streams[i];
2471         if (ist->decoding_needed) {
2472             AVCodec *codec = ist->dec;
2473             if (!codec)
2474                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2475             if (!codec) {
2476                 snprintf(error, sizeof(error), "Decoder (codec %s) not found for input stream #%d.%d",
2477                         avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2478                 ret = AVERROR(EINVAL);
2479                 goto dump_format;
2480             }
2481             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2482                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2483                         ist->file_index, ist->st->index);
2484                 ret = AVERROR(EINVAL);
2485                 goto dump_format;
2486             }
2487             assert_codec_experimental(ist->st->codec, 0);
2488             assert_avoptions(ost->opts);
2489         }
2490     }
2491
2492     /* init pts */
2493     for (i = 0; i < nb_input_streams; i++) {
2494         AVStream *st;
2495         ist = &input_streams[i];
2496         st= ist->st;
2497         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2498         ist->next_pts = AV_NOPTS_VALUE;
2499         ist->is_start = 1;
2500     }
2501
2502     /* set meta data information from input file if required */
2503     for (i=0;i<nb_meta_data_maps;i++) {
2504         AVFormatContext *files[2];
2505         AVDictionary    **meta[2];
2506         int j;
2507
2508 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2509         if ((index) < 0 || (index) >= (nb_elems)) {\
2510             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2511                      (desc), (index));\
2512             ret = AVERROR(EINVAL);\
2513             goto dump_format;\
2514         }
2515
2516         int out_file_index = meta_data_maps[i][0].file;
2517         int in_file_index = meta_data_maps[i][1].file;
2518         if (in_file_index < 0 || out_file_index < 0)
2519             continue;
2520         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2521         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2522
2523         files[0] = output_files[out_file_index];
2524         files[1] = input_files[in_file_index].ctx;
2525
2526         for (j = 0; j < 2; j++) {
2527             MetadataMap *map = &meta_data_maps[i][j];
2528
2529             switch (map->type) {
2530             case 'g':
2531                 meta[j] = &files[j]->metadata;
2532                 break;
2533             case 's':
2534                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2535                 meta[j] = &files[j]->streams[map->index]->metadata;
2536                 break;
2537             case 'c':
2538                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2539                 meta[j] = &files[j]->chapters[map->index]->metadata;
2540                 break;
2541             case 'p':
2542                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2543                 meta[j] = &files[j]->programs[map->index]->metadata;
2544                 break;
2545             }
2546         }
2547
2548         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2549     }
2550
2551     /* copy global metadata by default */
2552     if (metadata_global_autocopy) {
2553
2554         for (i = 0; i < nb_output_files; i++)
2555             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2556                          AV_DICT_DONT_OVERWRITE);
2557     }
2558
2559     /* copy chapters according to chapter maps */
2560     for (i = 0; i < nb_chapter_maps; i++) {
2561         int infile  = chapter_maps[i].in_file;
2562         int outfile = chapter_maps[i].out_file;
2563
2564         if (infile < 0 || outfile < 0)
2565             continue;
2566         if (infile >= nb_input_files) {
2567             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2568             ret = AVERROR(EINVAL);
2569             goto dump_format;
2570         }
2571         if (outfile >= nb_output_files) {
2572             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2573             ret = AVERROR(EINVAL);
2574             goto dump_format;
2575         }
2576         copy_chapters(infile, outfile);
2577     }
2578
2579     /* copy chapters from the first input file that has them*/
2580     if (!nb_chapter_maps)
2581         for (i = 0; i < nb_input_files; i++) {
2582             if (!input_files[i].ctx->nb_chapters)
2583                 continue;
2584
2585             for (j = 0; j < nb_output_files; j++)
2586                 if ((ret = copy_chapters(i, j)) < 0)
2587                     goto dump_format;
2588             break;
2589         }
2590
2591     /* open files and write file headers */
2592     for(i=0;i<nb_output_files;i++) {
2593         os = output_files[i];
2594         if (avformat_write_header(os, &output_opts[i]) < 0) {
2595             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2596             ret = AVERROR(EINVAL);
2597             goto dump_format;
2598         }
2599 //        assert_avoptions(output_opts[i]);
2600         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2601             want_sdp = 0;
2602         }
2603     }
2604
2605  dump_format:
2606     /* dump the file output parameters - cannot be done before in case
2607        of stream copy */
2608     for(i=0;i<nb_output_files;i++) {
2609         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2610     }
2611
2612     /* dump the stream mapping */
2613     if (verbose >= 0) {
2614         fprintf(stderr, "Stream mapping:\n");
2615         for(i=0;i<nb_ostreams;i++) {
2616             ost = ost_table[i];
2617             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2618                     input_streams[ost->source_index].file_index,
2619                     input_streams[ost->source_index].st->index,
2620                     ost->file_index,
2621                     ost->index);
2622             if (ost->sync_ist != &input_streams[ost->source_index])
2623                 fprintf(stderr, " [sync #%d.%d]",
2624                         ost->sync_ist->file_index,
2625                         ost->sync_ist->st->index);
2626             if(ost->encoding_needed)
2627                 fprintf(stderr, ": %s -> %s",
2628                     input_streams[ost->source_index].dec ?
2629                         input_streams[ost->source_index].dec->name : "?",
2630                     ost->enc ? ost->enc->name : "?");
2631             else
2632                 fprintf(stderr, ": copy");
2633             fprintf(stderr, "\n");
2634         }
2635     }
2636
2637     if (ret) {
2638         fprintf(stderr, "%s\n", error);
2639         goto fail;
2640     }
2641
2642     if (want_sdp) {
2643         print_sdp(output_files, nb_output_files);
2644     }
2645
2646     if (!using_stdin) {
2647         if(verbose >= 0)
2648             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2649         avio_set_interrupt_cb(decode_interrupt_cb);
2650     }
2651     term_init();
2652
2653     timer_start = av_gettime();
2654
2655     for(; received_sigterm == 0;) {
2656         int file_index, ist_index;
2657         AVPacket pkt;
2658         double ipts_min;
2659         double opts_min;
2660
2661     redo:
2662         ipts_min= 1e100;
2663         opts_min= 1e100;
2664         /* if 'q' pressed, exits */
2665         if (!using_stdin) {
2666             if (q_pressed)
2667                 break;
2668             /* read_key() returns 0 on EOF */
2669             key = read_key();
2670             if (key == 'q')
2671                 break;
2672             if (key == '+') verbose++;
2673             if (key == '-') verbose--;
2674             if (key == 's') qp_hist     ^= 1;
2675             if (key == 'h'){
2676                 if (do_hex_dump){
2677                     do_hex_dump = do_pkt_dump = 0;
2678                 } else if(do_pkt_dump){
2679                     do_hex_dump = 1;
2680                 } else
2681                     do_pkt_dump = 1;
2682                 av_log_set_level(AV_LOG_DEBUG);
2683             }
2684             if (key == 'd' || key == 'D'){
2685                 int debug=0;
2686                 if(key == 'D') {
2687                     debug = input_streams[0].st->codec->debug<<1;
2688                     if(!debug) debug = 1;
2689                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2690                         debug += debug;
2691                 }else
2692                     scanf("%d", &debug);
2693                 for(i=0;i<nb_input_streams;i++) {
2694                     input_streams[i].st->codec->debug = debug;
2695                 }
2696                 for(i=0;i<nb_ostreams;i++) {
2697                     ost = ost_table[i];
2698                     ost->st->codec->debug = debug;
2699                 }
2700                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2701                 fprintf(stderr,"debug=%d\n", debug);
2702             }
2703             if (key == '?'){
2704                 fprintf(stderr, "key    function\n"
2705                                 "?      show this help\n"
2706                                 "+      increase verbosity\n"
2707                                 "-      decrease verbosity\n"
2708                                 "D      cycle through available debug modes\n"
2709                                 "h      dump packets/hex press to cycle through the 3 states\n"
2710                                 "q      quit\n"
2711                                 "s      Show QP histogram\n"
2712                 );
2713             }
2714         }
2715
2716         /* select the stream that we must read now by looking at the
2717            smallest output pts */
2718         file_index = -1;
2719         for(i=0;i<nb_ostreams;i++) {
2720             double ipts, opts;
2721             ost = ost_table[i];
2722             os = output_files[ost->file_index];
2723             ist = &input_streams[ost->source_index];
2724             if(ist->is_past_recording_time || no_packet[ist->file_index])
2725                 continue;
2726                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2727             ipts = (double)ist->pts;
2728             if (!input_files[ist->file_index].eof_reached){
2729                 if(ipts < ipts_min) {
2730                     ipts_min = ipts;
2731                     if(input_sync ) file_index = ist->file_index;
2732                 }
2733                 if(opts < opts_min) {
2734                     opts_min = opts;
2735                     if(!input_sync) file_index = ist->file_index;
2736                 }
2737             }
2738             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2739                 file_index= -1;
2740                 break;
2741             }
2742         }
2743         /* if none, if is finished */
2744         if (file_index < 0) {
2745             if(no_packet_count){
2746                 no_packet_count=0;
2747                 memset(no_packet, 0, sizeof(no_packet));
2748                 usleep(10000);
2749                 continue;
2750             }
2751             break;
2752         }
2753
2754         /* finish if limit size exhausted */
2755         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2756             break;
2757
2758         /* read a frame from it and output it in the fifo */
2759         is = input_files[file_index].ctx;
2760         ret= av_read_frame(is, &pkt);
2761         if(ret == AVERROR(EAGAIN)){
2762             no_packet[file_index]=1;
2763             no_packet_count++;
2764             continue;
2765         }
2766         if (ret < 0) {
2767             input_files[file_index].eof_reached = 1;
2768             if (opt_shortest)
2769                 break;
2770             else
2771                 continue;
2772         }
2773
2774         no_packet_count=0;
2775         memset(no_packet, 0, sizeof(no_packet));
2776
2777         if (do_pkt_dump) {
2778             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2779                              is->streams[pkt.stream_index]);
2780         }
2781         /* the following test is needed in case new streams appear
2782            dynamically in stream : we ignore them */
2783         if (pkt.stream_index >= input_files[file_index].nb_streams)
2784             goto discard_packet;
2785         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2786         ist = &input_streams[ist_index];
2787         if (ist->discard)
2788             goto discard_packet;
2789
2790         if (pkt.dts != AV_NOPTS_VALUE)
2791             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2792         if (pkt.pts != AV_NOPTS_VALUE)
2793             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2794
2795         if (ist->ts_scale) {
2796             if(pkt.pts != AV_NOPTS_VALUE)
2797                 pkt.pts *= ist->ts_scale;
2798             if(pkt.dts != AV_NOPTS_VALUE)
2799                 pkt.dts *= ist->ts_scale;
2800         }
2801
2802 //        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);
2803         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2804             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2805             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2806             int64_t delta= pkt_dts - ist->next_pts;
2807             if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2808                 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2809                  ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2810                 pkt_dts+1<ist->pts)&& !copy_ts){
2811                 input_files[ist->file_index].ts_offset -= delta;
2812                 if (verbose > 2)
2813                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2814                             delta, input_files[ist->file_index].ts_offset);
2815                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2816                 if(pkt.pts != AV_NOPTS_VALUE)
2817                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2818             }
2819         }
2820
2821         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2822         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2823
2824             if (verbose >= 0)
2825                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2826                         ist->file_index, ist->st->index);
2827             if (exit_on_error)
2828                 ffmpeg_exit(1);
2829             av_free_packet(&pkt);
2830             goto redo;
2831         }
2832
2833     discard_packet:
2834         av_free_packet(&pkt);
2835
2836         /* dump report by using the output first video and audio streams */
2837         print_report(output_files, ost_table, nb_ostreams, 0);
2838     }
2839
2840     /* at the end of stream, we must flush the decoder buffers */
2841     for (i = 0; i < nb_input_streams; i++) {
2842         ist = &input_streams[i];
2843         if (ist->decoding_needed) {
2844             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2845         }
2846     }
2847
2848     term_exit();
2849
2850     /* write the trailer if needed and close file */
2851     for(i=0;i<nb_output_files;i++) {
2852         os = output_files[i];
2853         av_write_trailer(os);
2854     }
2855
2856     /* dump report by using the first video and audio streams */
2857     print_report(output_files, ost_table, nb_ostreams, 1);
2858
2859     /* close each encoder */
2860     for(i=0;i<nb_ostreams;i++) {
2861         ost = ost_table[i];
2862         if (ost->encoding_needed) {
2863             av_freep(&ost->st->codec->stats_in);
2864             avcodec_close(ost->st->codec);
2865         }
2866 #if CONFIG_AVFILTER
2867         avfilter_graph_free(&ost->graph);
2868 #endif
2869     }
2870
2871     /* close each decoder */
2872     for (i = 0; i < nb_input_streams; i++) {
2873         ist = &input_streams[i];
2874         if (ist->decoding_needed) {
2875             avcodec_close(ist->st->codec);
2876         }
2877     }
2878
2879     /* finished ! */
2880     ret = 0;
2881
2882  fail:
2883     av_freep(&bit_buffer);
2884
2885     if (ost_table) {
2886         for(i=0;i<nb_ostreams;i++) {
2887             ost = ost_table[i];
2888             if (ost) {
2889                 if (ost->st->stream_copy)
2890                     av_freep(&ost->st->codec->extradata);
2891                 if (ost->logfile) {
2892                     fclose(ost->logfile);
2893                     ost->logfile = NULL;
2894                 }
2895                 av_fifo_free(ost->fifo); /* works even if fifo is not
2896                                              initialized but set to zero */
2897                 av_freep(&ost->st->codec->subtitle_header);
2898                 av_free(ost->resample_frame.data[0]);
2899                 av_free(ost->forced_kf_pts);
2900                 if (ost->video_resample)
2901                     sws_freeContext(ost->img_resample_ctx);
2902                 if (ost->resample)
2903                     audio_resample_close(ost->resample);
2904                 if (ost->reformat_ctx)
2905                     av_audio_convert_free(ost->reformat_ctx);
2906                 av_dict_free(&ost->opts);
2907                 av_free(ost);
2908             }
2909         }
2910         av_free(ost_table);
2911     }
2912     return ret;
2913 }
2914
2915 static int opt_format(const char *opt, const char *arg)
2916 {
2917     last_asked_format = arg;
2918     return 0;
2919 }
2920
2921 static int opt_video_rc_override_string(const char *opt, const char *arg)
2922 {
2923     video_rc_override_string = arg;
2924     return 0;
2925 }
2926
2927 static int opt_me_threshold(const char *opt, const char *arg)
2928 {
2929     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2930     return 0;
2931 }
2932
2933 static int opt_verbose(const char *opt, const char *arg)
2934 {
2935     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2936     return 0;
2937 }
2938
2939 static int opt_frame_rate(const char *opt, const char *arg)
2940 {
2941     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2942         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2943         ffmpeg_exit(1);
2944     }
2945     return 0;
2946 }
2947
2948 static int opt_frame_crop(const char *opt, const char *arg)
2949 {
2950     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2951     return AVERROR(EINVAL);
2952 }
2953
2954 static int opt_frame_size(const char *opt, const char *arg)
2955 {
2956     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2957         fprintf(stderr, "Incorrect frame size\n");
2958         return AVERROR(EINVAL);
2959     }
2960     return 0;
2961 }
2962
2963 static int opt_pad(const char *opt, const char *arg) {
2964     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2965     return -1;
2966 }
2967
2968 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2969 {
2970     if (strcmp(arg, "list")) {
2971         frame_pix_fmt = av_get_pix_fmt(arg);
2972         if (frame_pix_fmt == PIX_FMT_NONE) {
2973             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2974             return AVERROR(EINVAL);
2975         }
2976     } else {
2977         opt_pix_fmts(NULL, NULL);
2978         ffmpeg_exit(0);
2979     }
2980     return 0;
2981 }
2982
2983 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2984 {
2985     int x = 0, y = 0;
2986     double ar = 0;
2987     const char *p;
2988     char *end;
2989
2990     p = strchr(arg, ':');
2991     if (p) {
2992         x = strtol(arg, &end, 10);
2993         if (end == p)
2994             y = strtol(end+1, &end, 10);
2995         if (x > 0 && y > 0)
2996             ar = (double)x / (double)y;
2997     } else
2998         ar = strtod(arg, NULL);
2999
3000     if (!ar) {
3001         fprintf(stderr, "Incorrect aspect ratio specification.\n");
3002         return AVERROR(EINVAL);
3003     }
3004     frame_aspect_ratio = ar;
3005     return 0;
3006 }
3007
3008 static int opt_metadata(const char *opt, const char *arg)
3009 {
3010     char *mid= strchr(arg, '=');
3011
3012     if(!mid){
3013         fprintf(stderr, "Missing =\n");
3014         ffmpeg_exit(1);
3015     }
3016     *mid++= 0;
3017
3018     av_dict_set(&metadata, arg, mid, 0);
3019
3020     return 0;
3021 }
3022
3023 static int opt_qscale(const char *opt, const char *arg)
3024 {
3025     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
3026     if (video_qscale <= 0 || video_qscale > 255) {
3027         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
3028         return AVERROR(EINVAL);
3029     }
3030     return 0;
3031 }
3032
3033 static int opt_top_field_first(const char *opt, const char *arg)
3034 {
3035     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
3036     return opt_default(opt, arg);
3037 }
3038
3039 static int opt_thread_count(const char *opt, const char *arg)
3040 {
3041     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3042 #if !HAVE_THREADS
3043     if (verbose >= 0)
3044         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3045 #endif
3046     return 0;
3047 }
3048
3049 static int opt_audio_sample_fmt(const char *opt, const char *arg)
3050 {
3051     if (strcmp(arg, "list")) {
3052         audio_sample_fmt = av_get_sample_fmt(arg);
3053         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
3054             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
3055             return AVERROR(EINVAL);
3056         }
3057     } else {
3058         int i;
3059         char fmt_str[128];
3060         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
3061             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
3062         ffmpeg_exit(0);
3063     }
3064     return 0;
3065 }
3066
3067 static int opt_audio_rate(const char *opt, const char *arg)
3068 {
3069     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3070     return 0;
3071 }
3072
3073 static int opt_audio_channels(const char *opt, const char *arg)
3074 {
3075     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3076     return 0;
3077 }
3078
3079 static int opt_video_channel(const char *opt, const char *arg)
3080 {
3081     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
3082     return opt_default("channel", arg);
3083 }
3084
3085 static int opt_video_standard(const char *opt, const char *arg)
3086 {
3087     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
3088     return opt_default("standard", arg);
3089 }
3090
3091 static int opt_codec(const char *opt, const char *arg)
3092 {
3093     int *pstream_copy; char **pcodec_name; enum AVMediaType codec_type;
3094
3095     if      (!strcmp(opt, "acodec")) { pstream_copy = &audio_stream_copy;    pcodec_name = &audio_codec_name;    codec_type = AVMEDIA_TYPE_AUDIO;    }
3096     else if (!strcmp(opt, "vcodec")) { pstream_copy = &video_stream_copy;    pcodec_name = &video_codec_name;    codec_type = AVMEDIA_TYPE_VIDEO;    }
3097     else if (!strcmp(opt, "scodec")) { pstream_copy = &subtitle_stream_copy; pcodec_name = &subtitle_codec_name; codec_type = AVMEDIA_TYPE_SUBTITLE; }
3098     else if (!strcmp(opt, "dcodec")) { pstream_copy = &data_stream_copy;     pcodec_name = &data_codec_name;     codec_type = AVMEDIA_TYPE_DATA;     }
3099
3100     av_freep(pcodec_name);
3101     if (!strcmp(arg, "copy")) {
3102         *pstream_copy = 1;
3103     } else {
3104         *pcodec_name = av_strdup(arg);
3105     }
3106     return 0;
3107 }
3108
3109 static int opt_codec_tag(const char *opt, const char *arg)
3110 {
3111     char *tail;
3112     uint32_t *codec_tag;
3113
3114     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3115                 !strcmp(opt, "vtag") ? &video_codec_tag :
3116                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3117     if (!codec_tag)
3118         return -1;
3119
3120     *codec_tag = strtol(arg, &tail, 0);
3121     if (!tail || *tail)
3122         *codec_tag = AV_RL32(arg);
3123
3124     return 0;
3125 }
3126
3127 static int opt_map(const char *opt, const char *arg)
3128 {
3129     StreamMap *m;
3130     char *p;
3131
3132     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3133     m = &stream_maps[nb_stream_maps-1];
3134
3135     m->file_index = strtol(arg, &p, 0);
3136     if (*p)
3137         p++;
3138
3139     m->stream_index = strtol(p, &p, 0);
3140     if (*p) {
3141         p++;
3142         m->sync_file_index = strtol(p, &p, 0);
3143         if (*p)
3144             p++;
3145         m->sync_stream_index = strtol(p, &p, 0);
3146     } else {
3147         m->sync_file_index = m->file_index;
3148         m->sync_stream_index = m->stream_index;
3149     }
3150     return 0;
3151 }
3152
3153 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3154 {
3155     *endptr = arg;
3156     if (*arg == ',') {
3157         *type = *(++arg);
3158         switch (*arg) {
3159         case 'g':
3160             break;
3161         case 's':
3162         case 'c':
3163         case 'p':
3164             *index = strtol(++arg, endptr, 0);
3165             break;
3166         default:
3167             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3168             ffmpeg_exit(1);
3169         }
3170     } else
3171         *type = 'g';
3172 }
3173
3174 static int opt_map_metadata(const char *opt, const char *arg)
3175 {
3176     MetadataMap *m, *m1;
3177     char *p;
3178
3179     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3180                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3181
3182     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3183     m->file = strtol(arg, &p, 0);
3184     parse_meta_type(p, &m->type, &m->index, &p);
3185     if (*p)
3186         p++;
3187
3188     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3189     m1->file = strtol(p, &p, 0);
3190     parse_meta_type(p, &m1->type, &m1->index, &p);
3191
3192     if (m->type == 'g' || m1->type == 'g')
3193         metadata_global_autocopy = 0;
3194     if (m->type == 's' || m1->type == 's')
3195         metadata_streams_autocopy = 0;
3196     if (m->type == 'c' || m1->type == 'c')
3197         metadata_chapters_autocopy = 0;
3198
3199     return 0;
3200 }
3201
3202 static int opt_map_meta_data(const char *opt, const char *arg)
3203 {
3204     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3205                     "Use -map_metadata instead.\n");
3206     return opt_map_metadata(opt, arg);
3207 }
3208
3209 static int opt_map_chapters(const char *opt, const char *arg)
3210 {
3211     ChapterMap *c;
3212     char *p;
3213
3214     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3215                               nb_chapter_maps + 1);
3216     c = &chapter_maps[nb_chapter_maps - 1];
3217     c->out_file = strtol(arg, &p, 0);
3218     if (*p)
3219         p++;
3220
3221     c->in_file = strtol(p, &p, 0);
3222     return 0;
3223 }
3224
3225 static int opt_input_ts_scale(const char *opt, const char *arg)
3226 {
3227     unsigned int stream;
3228     double scale;
3229     char *p;
3230
3231     stream = strtol(arg, &p, 0);
3232     if (*p)
3233         p++;
3234     scale= strtod(p, &p);
3235
3236     if(stream >= MAX_STREAMS)
3237         ffmpeg_exit(1);
3238
3239     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3240     ts_scale[stream] = scale;
3241     return 0;
3242 }
3243
3244 static int opt_recording_time(const char *opt, const char *arg)
3245 {
3246     recording_time = parse_time_or_die(opt, arg, 1);
3247     return 0;
3248 }
3249
3250 static int opt_start_time(const char *opt, const char *arg)
3251 {
3252     start_time = parse_time_or_die(opt, arg, 1);
3253     return 0;
3254 }
3255
3256 static int opt_recording_timestamp(const char *opt, const char *arg)
3257 {
3258     char buf[128];
3259     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3260     struct tm time = *gmtime((time_t*)&recording_timestamp);
3261     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3262     opt_metadata("metadata", buf);
3263
3264     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3265                                  "tag instead.\n", opt);
3266     return 0;
3267 }
3268
3269 static int opt_input_ts_offset(const char *opt, const char *arg)
3270 {
3271     input_ts_offset = parse_time_or_die(opt, arg, 1);
3272     return 0;
3273 }
3274
3275 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3276 {
3277     const char *codec_string = encoder ? "encoder" : "decoder";
3278     AVCodec *codec;
3279
3280     if(!name)
3281         return CODEC_ID_NONE;
3282     codec = encoder ?
3283         avcodec_find_encoder_by_name(name) :
3284         avcodec_find_decoder_by_name(name);
3285     if(!codec) {
3286         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3287         ffmpeg_exit(1);
3288     }
3289     if(codec->type != type) {
3290         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3291         ffmpeg_exit(1);
3292     }
3293     return codec->id;
3294 }
3295
3296 static int opt_input_file(const char *opt, const char *filename)
3297 {
3298     AVFormatContext *ic;
3299     AVInputFormat *file_iformat = NULL;
3300     int err, i, ret, rfps, rfps_base;
3301     int64_t timestamp;
3302     uint8_t buf[128];
3303     AVDictionary **opts;
3304     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3305
3306     if (last_asked_format) {
3307         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3308             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3309             ffmpeg_exit(1);
3310         }
3311         last_asked_format = NULL;
3312     }
3313
3314     if (!strcmp(filename, "-"))
3315         filename = "pipe:";
3316
3317     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3318                     !strcmp(filename, "/dev/stdin");
3319
3320     /* get default parameters from command line */
3321     ic = avformat_alloc_context();
3322     if (!ic) {
3323         print_error(filename, AVERROR(ENOMEM));
3324         ffmpeg_exit(1);
3325     }
3326     if (audio_sample_rate) {
3327         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3328         av_dict_set(&format_opts, "sample_rate", buf, 0);
3329     }
3330     if (audio_channels) {
3331         snprintf(buf, sizeof(buf), "%d", audio_channels);
3332         av_dict_set(&format_opts, "channels", buf, 0);
3333     }
3334     if (frame_rate.num) {
3335         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3336         av_dict_set(&format_opts, "framerate", buf, 0);
3337     }
3338     if (frame_width && frame_height) {
3339         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3340         av_dict_set(&format_opts, "video_size", buf, 0);
3341     }
3342     if (frame_pix_fmt != PIX_FMT_NONE)
3343         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3344
3345     ic->video_codec_id   =
3346         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
3347     ic->audio_codec_id   =
3348         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
3349     ic->subtitle_codec_id=
3350         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3351     ic->flags |= AVFMT_FLAG_NONBLOCK;
3352
3353     if (loop_input) {
3354         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3355         ic->loop_input = loop_input;
3356     }
3357
3358     /* open the input file with generic libav function */
3359     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3360     if (err < 0) {
3361         print_error(filename, err);
3362         ffmpeg_exit(1);
3363     }
3364     assert_avoptions(format_opts);
3365
3366     if(opt_programid) {
3367         int i, j;
3368         int found=0;
3369         for(i=0; i<ic->nb_streams; i++){
3370             ic->streams[i]->discard= AVDISCARD_ALL;
3371         }
3372         for(i=0; i<ic->nb_programs; i++){
3373             AVProgram *p= ic->programs[i];
3374             if(p->id != opt_programid){
3375                 p->discard = AVDISCARD_ALL;
3376             }else{
3377                 found=1;
3378                 for(j=0; j<p->nb_stream_indexes; j++){
3379                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3380                 }
3381             }
3382         }
3383         if(!found){
3384             fprintf(stderr, "Specified program id not found\n");
3385             ffmpeg_exit(1);
3386         }
3387         opt_programid=0;
3388     }
3389
3390     /* Set AVCodecContext options for avformat_find_stream_info */
3391     opts = setup_find_stream_info_opts(ic, codec_opts);
3392     orig_nb_streams = ic->nb_streams;
3393
3394     /* If not enough info to get the stream parameters, we decode the
3395        first frames to get it. (used in mpeg case for example) */
3396     ret = avformat_find_stream_info(ic, opts);
3397     if (ret < 0 && verbose >= 0) {
3398         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3399         av_close_input_file(ic);
3400         ffmpeg_exit(1);
3401     }
3402
3403     timestamp = start_time;
3404     /* add the stream start time */
3405     if (ic->start_time != AV_NOPTS_VALUE)
3406         timestamp += ic->start_time;
3407
3408     /* if seeking requested, we execute it */
3409     if (start_time != 0) {
3410         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3411         if (ret < 0) {
3412             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3413                     filename, (double)timestamp / AV_TIME_BASE);
3414         }
3415         /* reset seek info */
3416         start_time = 0;
3417     }
3418
3419     /* update the current parameters so that they match the one of the input stream */
3420     for(i=0;i<ic->nb_streams;i++) {
3421         AVStream *st = ic->streams[i];
3422         AVCodecContext *dec = st->codec;
3423         InputStream *ist;
3424
3425         dec->thread_count = thread_count;
3426
3427         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3428         ist = &input_streams[nb_input_streams - 1];
3429         ist->st = st;
3430         ist->file_index = nb_input_files;
3431         ist->discard = 1;
3432         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3433
3434         if (i < nb_ts_scale)
3435             ist->ts_scale = ts_scale[i];
3436
3437         switch (dec->codec_type) {
3438         case AVMEDIA_TYPE_AUDIO:
3439             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3440             if(!ist->dec)
3441                 ist->dec = avcodec_find_decoder(dec->codec_id);
3442             if(audio_disable)
3443                 st->discard= AVDISCARD_ALL;
3444             break;
3445         case AVMEDIA_TYPE_VIDEO:
3446             ist->dec= avcodec_find_decoder_by_name(video_codec_name);
3447             if(!ist->dec)
3448                 ist->dec = avcodec_find_decoder(dec->codec_id);
3449             rfps      = ic->streams[i]->r_frame_rate.num;
3450             rfps_base = ic->streams[i]->r_frame_rate.den;
3451             if (dec->lowres) {
3452                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3453             }
3454             if(me_threshold)
3455                 dec->debug |= FF_DEBUG_MV;
3456
3457             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3458
3459                 if (verbose >= 0)
3460                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3461                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3462
3463                     (float)rfps / rfps_base, rfps, rfps_base);
3464             }
3465
3466             if(video_disable)
3467                 st->discard= AVDISCARD_ALL;
3468             else if(video_discard)
3469                 st->discard= video_discard;
3470             break;
3471         case AVMEDIA_TYPE_DATA:
3472             break;
3473         case AVMEDIA_TYPE_SUBTITLE:
3474             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3475             if(!ist->dec)
3476                 ist->dec = avcodec_find_decoder(dec->codec_id);
3477             if(subtitle_disable)
3478                 st->discard = AVDISCARD_ALL;
3479             break;
3480         case AVMEDIA_TYPE_ATTACHMENT:
3481         case AVMEDIA_TYPE_UNKNOWN:
3482             break;
3483         default:
3484             abort();
3485         }
3486     }
3487
3488     /* dump the file content */
3489     if (verbose >= 0)
3490         av_dump_format(ic, nb_input_files, filename, 0);
3491
3492     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3493     input_files[nb_input_files - 1].ctx        = ic;
3494     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3495     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3496     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3497
3498     top_field_first = -1;
3499     frame_rate    = (AVRational){0, 0};
3500     frame_pix_fmt = PIX_FMT_NONE;
3501     frame_height = 0;
3502     frame_width  = 0;
3503     audio_sample_rate = 0;
3504     audio_channels    = 0;
3505     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3506     av_freep(&ts_scale);
3507     nb_ts_scale = 0;
3508
3509     for (i = 0; i < orig_nb_streams; i++)
3510         av_dict_free(&opts[i]);
3511     av_freep(&opts);
3512     av_freep(&video_codec_name);
3513     av_freep(&audio_codec_name);
3514     av_freep(&subtitle_codec_name);
3515     uninit_opts();
3516     init_opts();
3517     return 0;
3518 }
3519
3520 static void check_inputs(int *has_video_ptr,
3521                          int *has_audio_ptr,
3522                          int *has_subtitle_ptr,
3523                          int *has_data_ptr)
3524 {
3525     int has_video, has_audio, has_subtitle, has_data, i, j;
3526     AVFormatContext *ic;
3527
3528     has_video = 0;
3529     has_audio = 0;
3530     has_subtitle = 0;
3531     has_data = 0;
3532
3533     for(j=0;j<nb_input_files;j++) {
3534         ic = input_files[j].ctx;
3535         for(i=0;i<ic->nb_streams;i++) {
3536             AVCodecContext *enc = ic->streams[i]->codec;
3537             switch(enc->codec_type) {
3538             case AVMEDIA_TYPE_AUDIO:
3539                 has_audio = 1;
3540                 break;
3541             case AVMEDIA_TYPE_VIDEO:
3542                 has_video = 1;
3543                 break;
3544             case AVMEDIA_TYPE_SUBTITLE:
3545                 has_subtitle = 1;
3546                 break;
3547             case AVMEDIA_TYPE_DATA:
3548             case AVMEDIA_TYPE_ATTACHMENT:
3549             case AVMEDIA_TYPE_UNKNOWN:
3550                 has_data = 1;
3551                 break;
3552             default:
3553                 abort();
3554             }
3555         }
3556     }
3557     *has_video_ptr = has_video;
3558     *has_audio_ptr = has_audio;
3559     *has_subtitle_ptr = has_subtitle;
3560     *has_data_ptr = has_data;
3561 }
3562
3563 static void new_video_stream(AVFormatContext *oc, int file_idx)
3564 {
3565     AVStream *st;
3566     OutputStream *ost;
3567     AVCodecContext *video_enc;
3568     enum CodecID codec_id = CODEC_ID_NONE;
3569     AVCodec *codec= NULL;
3570
3571     if(!video_stream_copy){
3572         if (video_codec_name) {
3573             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3574             codec = avcodec_find_encoder_by_name(video_codec_name);
3575         } else {
3576             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3577             codec = avcodec_find_encoder(codec_id);
3578         }
3579     }
3580
3581     ost = new_output_stream(oc, file_idx, codec);
3582     st  = ost->st;
3583     if (!video_stream_copy) {
3584         ost->frame_aspect_ratio = frame_aspect_ratio;
3585         frame_aspect_ratio = 0;
3586 #if CONFIG_AVFILTER
3587         ost->avfilter = vfilters;
3588         vfilters = NULL;
3589 #endif
3590     }
3591
3592     ost->bitstream_filters = video_bitstream_filters;
3593     video_bitstream_filters= NULL;
3594
3595     st->codec->thread_count= thread_count;
3596
3597     video_enc = st->codec;
3598
3599     if(video_codec_tag)
3600         video_enc->codec_tag= video_codec_tag;
3601
3602     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3603         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3604     }
3605
3606     video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3607     if (video_stream_copy) {
3608         st->stream_copy = 1;
3609         video_enc->sample_aspect_ratio =
3610         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3611     } else {
3612         const char *p;
3613         int i;
3614
3615         if (frame_rate.num)
3616             ost->frame_rate = frame_rate;
3617         video_enc->codec_id = codec_id;
3618
3619         video_enc->width = frame_width;
3620         video_enc->height = frame_height;
3621         video_enc->pix_fmt = frame_pix_fmt;
3622         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3623         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;