Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #include "libavformat/ffm.h" // not public API
50
51 #if CONFIG_AVFILTER
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsink_buffer.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int 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
119 static const char *last_asked_format = NULL;
120 static double *ts_scale;
121 static int  nb_ts_scale;
122
123 static AVFormatContext *output_files[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  video_channel = 0;
223 static char *video_standard;
224
225 static int audio_volume = 256;
226
227 static int exit_on_error = 0;
228 static int using_stdin = 0;
229 static int verbose = 1;
230 static int run_as_daemon  = 0;
231 static int thread_count= 1;
232 static int q_pressed = 0;
233 static int64_t video_size = 0;
234 static int64_t audio_size = 0;
235 static int64_t extra_size = 0;
236 static int nb_frames_dup = 0;
237 static int nb_frames_drop = 0;
238 static int input_sync;
239 static uint64_t limit_filesize = 0;
240 static int force_fps = 0;
241 static char *forced_key_frames = NULL;
242
243 static float dts_delta_threshold = 10;
244
245 static int64_t timer_start;
246
247 static uint8_t *audio_buf;
248 static uint8_t *audio_out;
249 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
250
251 static short *samples;
252
253 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
254 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
255 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
256
257 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
258
259 struct InputStream;
260
261 typedef struct OutputStream {
262     int file_index;          /* file index */
263     int index;               /* stream index in the output file */
264     int source_index;        /* InputStream index */
265     AVStream *st;            /* stream in the output file */
266     int encoding_needed;     /* true if encoding needed for this stream */
267     int frame_number;
268     /* input pts and corresponding output pts
269        for A/V sync */
270     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
271     struct InputStream *sync_ist; /* input stream to sync against */
272     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
273     AVBitStreamFilterContext *bitstream_filters;
274     AVCodec *enc;
275
276     /* video only */
277     int video_resample;
278     AVFrame resample_frame;              /* temporary frame for image resampling */
279     struct SwsContext *img_resample_ctx; /* for image resampling */
280     int resample_height;
281     int resample_width;
282     int resample_pix_fmt;
283     AVRational frame_rate;
284
285     float frame_aspect_ratio;
286
287     /* forced key frames */
288     int64_t *forced_kf_pts;
289     int forced_kf_count;
290     int forced_kf_index;
291
292     /* audio only */
293     int audio_resample;
294     ReSampleContext *resample; /* for audio resampling */
295     int resample_sample_fmt;
296     int resample_channels;
297     int resample_sample_rate;
298     int reformat_pair;
299     AVAudioConvert *reformat_ctx;
300     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
301     FILE *logfile;
302
303 #if CONFIG_AVFILTER
304     AVFilterContext *output_video_filter;
305     AVFilterContext *input_video_filter;
306     AVFilterBufferRef *picref;
307     char *avfilter;
308     AVFilterGraph *graph;
309 #endif
310
311    int sws_flags;
312 } OutputStream;
313
314 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
315 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
316
317 typedef struct InputStream {
318     int file_index;
319     AVStream *st;
320     int discard;             /* true if stream data should be discarded */
321     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
322     AVCodec *dec;
323
324     int64_t       start;     /* time when read started */
325     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
326                                 is not defined */
327     int64_t       pts;       /* current pts */
328     double ts_scale;
329     int is_start;            /* is 1 at the start and after a discontinuity */
330     int showed_multi_packet_warning;
331     int is_past_recording_time;
332 } InputStream;
333
334 typedef struct InputFile {
335     AVFormatContext *ctx;
336     int eof_reached;      /* true if eof reached */
337     int ist_index;        /* index of first stream in ist_table */
338     int buffer_size;      /* current total buffer size */
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     }
538     for(i=0;i<nb_input_files;i++) {
539         av_close_input_file(input_files[i].ctx);
540     }
541
542     av_free(intra_matrix);
543     av_free(inter_matrix);
544
545     if (vstats_file)
546         fclose(vstats_file);
547     av_free(vstats_filename);
548
549     av_free(streamid_map);
550     av_free(stream_maps);
551     av_free(meta_data_maps);
552
553     av_freep(&input_streams);
554     av_freep(&input_files);
555
556     av_free(video_codec_name);
557     av_free(audio_codec_name);
558     av_free(subtitle_codec_name);
559     av_free(data_codec_name);
560
561     av_free(video_standard);
562
563     uninit_opts();
564     av_free(audio_buf);
565     av_free(audio_out);
566     allocated_audio_buf_size= allocated_audio_out_size= 0;
567     av_free(samples);
568
569 #if CONFIG_AVFILTER
570     avfilter_uninit();
571 #endif
572
573     if (received_sigterm) {
574         fprintf(stderr,
575             "Received signal %d: terminating.\n",
576             (int) received_sigterm);
577         exit (255);
578     }
579
580     exit(ret); /* not all OS-es handle main() return value */
581     return ret;
582 }
583
584 /* similar to ff_dynarray_add() and av_fast_realloc() */
585 static void *grow_array(void *array, int elem_size, int *size, int new_size)
586 {
587     if (new_size >= INT_MAX / elem_size) {
588         fprintf(stderr, "Array too big.\n");
589         ffmpeg_exit(1);
590     }
591     if (*size < new_size) {
592         uint8_t *tmp = av_realloc(array, new_size*elem_size);
593         if (!tmp) {
594             fprintf(stderr, "Could not alloc buffer.\n");
595             ffmpeg_exit(1);
596         }
597         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
598         *size = new_size;
599         return tmp;
600     }
601     return array;
602 }
603
604 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
605 {
606     if(codec && codec->sample_fmts){
607         const enum AVSampleFormat *p= codec->sample_fmts;
608         for(; *p!=-1; p++){
609             if(*p == st->codec->sample_fmt)
610                 break;
611         }
612         if (*p == -1) {
613             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
614                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
615             av_log(NULL, AV_LOG_WARNING,
616                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
617                    av_get_sample_fmt_name(st->codec->sample_fmt),
618                    codec->name,
619                    av_get_sample_fmt_name(codec->sample_fmts[0]));
620             st->codec->sample_fmt = codec->sample_fmts[0];
621         }
622     }
623 }
624
625 static void choose_sample_rate(AVStream *st, AVCodec *codec)
626 {
627     if(codec && codec->supported_samplerates){
628         const int *p= codec->supported_samplerates;
629         int best=0;
630         int best_dist=INT_MAX;
631         for(; *p; p++){
632             int dist= abs(st->codec->sample_rate - *p);
633             if(dist < best_dist){
634                 best_dist= dist;
635                 best= *p;
636             }
637         }
638         if(best_dist){
639             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
640         }
641         st->codec->sample_rate= best;
642     }
643 }
644
645 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
646 {
647     if(codec && codec->pix_fmts){
648         const enum PixelFormat *p= codec->pix_fmts;
649         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
650             if(st->codec->codec_id==CODEC_ID_MJPEG){
651                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
652             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
653                 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};
654             }
655         }
656         for(; *p!=-1; p++){
657             if(*p == st->codec->pix_fmt)
658                 break;
659         }
660         if (*p == -1) {
661             if(st->codec->pix_fmt != PIX_FMT_NONE)
662                 av_log(NULL, AV_LOG_WARNING,
663                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
664                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
665                         codec->name,
666                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
667             st->codec->pix_fmt = codec->pix_fmts[0];
668         }
669     }
670 }
671
672 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
673 {
674     OutputStream *ost;
675     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
676     int idx      = oc->nb_streams - 1;
677
678     if (!st) {
679         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
680         ffmpeg_exit(1);
681     }
682
683     output_streams_for_file[file_idx] =
684         grow_array(output_streams_for_file[file_idx],
685                    sizeof(*output_streams_for_file[file_idx]),
686                    &nb_output_streams_for_file[file_idx],
687                    oc->nb_streams);
688     ost = output_streams_for_file[file_idx][idx] =
689         av_mallocz(sizeof(OutputStream));
690     if (!ost) {
691         fprintf(stderr, "Could not alloc output stream\n");
692         ffmpeg_exit(1);
693     }
694     ost->file_index = file_idx;
695     ost->index = idx;
696     ost->st    = st;
697     ost->enc   = codec;
698
699     avcodec_get_context_defaults3(st->codec, codec);
700
701     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
702     return ost;
703 }
704
705 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
706 {
707     int i, err;
708     AVFormatContext *ic;
709     int nopts = 0;
710
711     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
712     if (err < 0)
713         return err;
714     /* copy stream format */
715     for(i=0;i<ic->nb_streams;i++) {
716         AVStream *st;
717         OutputStream *ost;
718         AVCodec *codec;
719
720         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
721         ost   = new_output_stream(s, nb_output_files, codec);
722         st    = ost->st;
723
724         // FIXME: a more elegant solution is needed
725         memcpy(st, ic->streams[i], sizeof(AVStream));
726         st->info = av_malloc(sizeof(*st->info));
727         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
728         avcodec_copy_context(st->codec, ic->streams[i]->codec);
729
730         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
731             if (audio_stream_copy) {
732                 st->stream_copy = 1;
733             } else
734                 choose_sample_fmt(st, codec);
735         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
736             if (video_stream_copy) {
737                 st->stream_copy = 1;
738             } else
739                 choose_pixel_fmt(st, codec);
740         }
741
742         if(st->codec->flags & CODEC_FLAG_BITEXACT)
743             nopts = 1;
744     }
745
746     av_close_input_file(ic);
747     return 0;
748 }
749
750 static double
751 get_sync_ipts(const OutputStream *ost)
752 {
753     const InputStream *ist = ost->sync_ist;
754     return (double)(ist->pts - start_time)/AV_TIME_BASE;
755 }
756
757 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
758     int ret;
759
760     while(bsfc){
761         AVPacket new_pkt= *pkt;
762         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
763                                           &new_pkt.data, &new_pkt.size,
764                                           pkt->data, pkt->size,
765                                           pkt->flags & AV_PKT_FLAG_KEY);
766         if(a>0){
767             av_free_packet(pkt);
768             new_pkt.destruct= av_destruct_packet;
769         } else if(a<0){
770             fprintf(stderr, "%s failed for stream %d, codec %s",
771                     bsfc->filter->name, pkt->stream_index,
772                     avctx->codec ? avctx->codec->name : "copy");
773             print_error("", a);
774             if (exit_on_error)
775                 ffmpeg_exit(1);
776         }
777         *pkt= new_pkt;
778
779         bsfc= bsfc->next;
780     }
781
782     ret= av_interleaved_write_frame(s, pkt);
783     if(ret < 0){
784         print_error("av_interleaved_write_frame()", ret);
785         ffmpeg_exit(1);
786     }
787 }
788
789 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
790
791 static void do_audio_out(AVFormatContext *s,
792                          OutputStream *ost,
793                          InputStream *ist,
794                          unsigned char *buf, int size)
795 {
796     uint8_t *buftmp;
797     int64_t audio_out_size, audio_buf_size;
798     int64_t allocated_for_size= size;
799
800     int size_out, frame_bytes, ret, resample_changed;
801     AVCodecContext *enc= ost->st->codec;
802     AVCodecContext *dec= ist->st->codec;
803     int osize = av_get_bytes_per_sample(enc->sample_fmt);
804     int isize = av_get_bytes_per_sample(dec->sample_fmt);
805     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
806
807 need_realloc:
808     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
809     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
810     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
811     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
812     audio_buf_size*= osize*enc->channels;
813
814     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
815     if(coded_bps > 8*osize)
816         audio_out_size= audio_out_size * coded_bps / (8*osize);
817     audio_out_size += FF_MIN_BUFFER_SIZE;
818
819     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
820         fprintf(stderr, "Buffer sizes too large\n");
821         ffmpeg_exit(1);
822     }
823
824     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
825     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
826     if (!audio_buf || !audio_out){
827         fprintf(stderr, "Out of memory in do_audio_out\n");
828         ffmpeg_exit(1);
829     }
830
831     if (enc->channels != dec->channels)
832         ost->audio_resample = 1;
833
834     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
835                        ost->resample_channels    != dec->channels   ||
836                        ost->resample_sample_rate != dec->sample_rate;
837
838     if ((ost->audio_resample && !ost->resample) || resample_changed) {
839         if (resample_changed) {
840             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",
841                    ist->file_index, ist->st->index,
842                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
843                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
844             ost->resample_sample_fmt  = dec->sample_fmt;
845             ost->resample_channels    = dec->channels;
846             ost->resample_sample_rate = dec->sample_rate;
847             if (ost->resample)
848                 audio_resample_close(ost->resample);
849         }
850         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
851         if (audio_sync_method <= 1 &&
852             ost->resample_sample_fmt  == enc->sample_fmt &&
853             ost->resample_channels    == enc->channels   &&
854             ost->resample_sample_rate == enc->sample_rate) {
855             ost->resample = NULL;
856             ost->audio_resample = 0;
857         } else {
858             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
859                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
860             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
861                                                    enc->sample_rate, dec->sample_rate,
862                                                    enc->sample_fmt,  dec->sample_fmt,
863                                                    16, 10, 0, 0.8);
864             if (!ost->resample) {
865                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
866                         dec->channels, dec->sample_rate,
867                         enc->channels, enc->sample_rate);
868                 ffmpeg_exit(1);
869             }
870         }
871     }
872
873 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
874     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
875         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
876         if (ost->reformat_ctx)
877             av_audio_convert_free(ost->reformat_ctx);
878         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
879                                                    dec->sample_fmt, 1, NULL, 0);
880         if (!ost->reformat_ctx) {
881             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
882                 av_get_sample_fmt_name(dec->sample_fmt),
883                 av_get_sample_fmt_name(enc->sample_fmt));
884             ffmpeg_exit(1);
885         }
886         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
887     }
888
889     if(audio_sync_method){
890         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
891                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
892         double idelta= delta*dec->sample_rate / enc->sample_rate;
893         int byte_delta= ((int)idelta)*2*dec->channels;
894
895         //FIXME resample delay
896         if(fabs(delta) > 50){
897             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
898                 if(byte_delta < 0){
899                     byte_delta= FFMAX(byte_delta, -size);
900                     size += byte_delta;
901                     buf  -= byte_delta;
902                     if(verbose > 2)
903                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
904                     if(!size)
905                         return;
906                     ist->is_start=0;
907                 }else{
908                     static uint8_t *input_tmp= NULL;
909                     input_tmp= av_realloc(input_tmp, byte_delta + size);
910
911                     if(byte_delta > allocated_for_size - size){
912                         allocated_for_size= byte_delta + (int64_t)size;
913                         goto need_realloc;
914                     }
915                     ist->is_start=0;
916
917                     memset(input_tmp, 0, byte_delta);
918                     memcpy(input_tmp + byte_delta, buf, size);
919                     buf= input_tmp;
920                     size += byte_delta;
921                     if(verbose > 2)
922                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
923                 }
924             }else if(audio_sync_method>1){
925                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
926                 av_assert0(ost->audio_resample);
927                 if(verbose > 2)
928                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
929 //                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));
930                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
931             }
932         }
933     }else
934         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
935                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
936
937     if (ost->audio_resample) {
938         buftmp = audio_buf;
939         size_out = audio_resample(ost->resample,
940                                   (short *)buftmp, (short *)buf,
941                                   size / (dec->channels * isize));
942         size_out = size_out * enc->channels * osize;
943     } else {
944         buftmp = buf;
945         size_out = size;
946     }
947
948     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
949         const void *ibuf[6]= {buftmp};
950         void *obuf[6]= {audio_buf};
951         int istride[6]= {isize};
952         int ostride[6]= {osize};
953         int len= size_out/istride[0];
954         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
955             printf("av_audio_convert() failed\n");
956             if (exit_on_error)
957                 ffmpeg_exit(1);
958             return;
959         }
960         buftmp = audio_buf;
961         size_out = len*osize;
962     }
963
964     /* now encode as many frames as possible */
965     if (enc->frame_size > 1) {
966         /* output resampled raw samples */
967         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
968             fprintf(stderr, "av_fifo_realloc2() failed\n");
969             ffmpeg_exit(1);
970         }
971         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
972
973         frame_bytes = enc->frame_size * osize * enc->channels;
974
975         while (av_fifo_size(ost->fifo) >= frame_bytes) {
976             AVPacket pkt;
977             av_init_packet(&pkt);
978
979             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
980
981             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
982
983             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
984                                        (short *)audio_buf);
985             if (ret < 0) {
986                 fprintf(stderr, "Audio encoding failed\n");
987                 ffmpeg_exit(1);
988             }
989             audio_size += ret;
990             pkt.stream_index= ost->index;
991             pkt.data= audio_out;
992             pkt.size= ret;
993             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
994                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
995             pkt.flags |= AV_PKT_FLAG_KEY;
996             write_frame(s, &pkt, enc, ost->bitstream_filters);
997
998             ost->sync_opts += enc->frame_size;
999         }
1000     } else {
1001         AVPacket pkt;
1002         av_init_packet(&pkt);
1003
1004         ost->sync_opts += size_out / (osize * enc->channels);
1005
1006         /* output a pcm frame */
1007         /* determine the size of the coded buffer */
1008         size_out /= osize;
1009         if (coded_bps)
1010             size_out = size_out*coded_bps/8;
1011
1012         if(size_out > audio_out_size){
1013             fprintf(stderr, "Internal error, buffer size too small\n");
1014             ffmpeg_exit(1);
1015         }
1016
1017         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1018         ret = avcodec_encode_audio(enc, audio_out, size_out,
1019                                    (short *)buftmp);
1020         if (ret < 0) {
1021             fprintf(stderr, "Audio encoding failed\n");
1022             ffmpeg_exit(1);
1023         }
1024         audio_size += ret;
1025         pkt.stream_index= ost->index;
1026         pkt.data= audio_out;
1027         pkt.size= ret;
1028         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1029             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1030         pkt.flags |= AV_PKT_FLAG_KEY;
1031         write_frame(s, &pkt, enc, ost->bitstream_filters);
1032     }
1033 }
1034
1035 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1036 {
1037     AVCodecContext *dec;
1038     AVPicture *picture2;
1039     AVPicture picture_tmp;
1040     uint8_t *buf = 0;
1041
1042     dec = ist->st->codec;
1043
1044     /* deinterlace : must be done before any resize */
1045     if (do_deinterlace) {
1046         int size;
1047
1048         /* create temporary picture */
1049         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1050         buf = av_malloc(size);
1051         if (!buf)
1052             return;
1053
1054         picture2 = &picture_tmp;
1055         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1056
1057         if(avpicture_deinterlace(picture2, picture,
1058                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1059             /* if error, do not deinterlace */
1060             fprintf(stderr, "Deinterlacing failed\n");
1061             av_free(buf);
1062             buf = NULL;
1063             picture2 = picture;
1064         }
1065     } else {
1066         picture2 = picture;
1067     }
1068
1069     if (picture != picture2)
1070         *picture = *picture2;
1071     *bufp = buf;
1072 }
1073
1074 /* we begin to correct av delay at this threshold */
1075 #define AV_DELAY_MAX 0.100
1076
1077 static void do_subtitle_out(AVFormatContext *s,
1078                             OutputStream *ost,
1079                             InputStream *ist,
1080                             AVSubtitle *sub,
1081                             int64_t pts)
1082 {
1083     static uint8_t *subtitle_out = NULL;
1084     int subtitle_out_max_size = 1024 * 1024;
1085     int subtitle_out_size, nb, i;
1086     AVCodecContext *enc;
1087     AVPacket pkt;
1088
1089     if (pts == AV_NOPTS_VALUE) {
1090         fprintf(stderr, "Subtitle packets must have a pts\n");
1091         if (exit_on_error)
1092             ffmpeg_exit(1);
1093         return;
1094     }
1095
1096     enc = ost->st->codec;
1097
1098     if (!subtitle_out) {
1099         subtitle_out = av_malloc(subtitle_out_max_size);
1100     }
1101
1102     /* Note: DVB subtitle need one packet to draw them and one other
1103        packet to clear them */
1104     /* XXX: signal it in the codec context ? */
1105     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1106         nb = 2;
1107     else
1108         nb = 1;
1109
1110     for(i = 0; i < nb; i++) {
1111         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1112         // start_display_time is required to be 0
1113         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1114         sub->end_display_time -= sub->start_display_time;
1115         sub->start_display_time = 0;
1116         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1117                                                     subtitle_out_max_size, sub);
1118         if (subtitle_out_size < 0) {
1119             fprintf(stderr, "Subtitle encoding failed\n");
1120             ffmpeg_exit(1);
1121         }
1122
1123         av_init_packet(&pkt);
1124         pkt.stream_index = ost->index;
1125         pkt.data = subtitle_out;
1126         pkt.size = subtitle_out_size;
1127         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1128         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1129             /* XXX: the pts correction is handled here. Maybe handling
1130                it in the codec would be better */
1131             if (i == 0)
1132                 pkt.pts += 90 * sub->start_display_time;
1133             else
1134                 pkt.pts += 90 * sub->end_display_time;
1135         }
1136         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1137     }
1138 }
1139
1140 static int bit_buffer_size= 1024*256;
1141 static uint8_t *bit_buffer= NULL;
1142
1143 static void do_video_out(AVFormatContext *s,
1144                          OutputStream *ost,
1145                          InputStream *ist,
1146                          AVFrame *in_picture,
1147                          int *frame_size, float quality)
1148 {
1149     int nb_frames, i, ret, av_unused resample_changed;
1150     AVFrame *final_picture, *formatted_picture;
1151     AVCodecContext *enc, *dec;
1152     double sync_ipts;
1153
1154     enc = ost->st->codec;
1155     dec = ist->st->codec;
1156
1157     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1158
1159     /* by default, we output a single frame */
1160     nb_frames = 1;
1161
1162     *frame_size = 0;
1163
1164     if(video_sync_method){
1165         double vdelta = sync_ipts - ost->sync_opts;
1166         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1167         if (vdelta < -1.1)
1168             nb_frames = 0;
1169         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1170             if(vdelta<=-0.6){
1171                 nb_frames=0;
1172             }else if(vdelta>0.6)
1173                 ost->sync_opts= lrintf(sync_ipts);
1174         }else if (vdelta > 1.1)
1175             nb_frames = lrintf(vdelta);
1176 //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);
1177         if (nb_frames == 0){
1178             ++nb_frames_drop;
1179             if (verbose>2)
1180                 fprintf(stderr, "*** drop!\n");
1181         }else if (nb_frames > 1) {
1182             nb_frames_dup += nb_frames - 1;
1183             if (verbose>2)
1184                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1185         }
1186     }else
1187         ost->sync_opts= lrintf(sync_ipts);
1188
1189     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1190     if (nb_frames <= 0)
1191         return;
1192
1193     formatted_picture = in_picture;
1194     final_picture = formatted_picture;
1195
1196 #if !CONFIG_AVFILTER
1197     resample_changed = ost->resample_width   != dec->width  ||
1198                        ost->resample_height  != dec->height ||
1199                        ost->resample_pix_fmt != dec->pix_fmt;
1200
1201     if (resample_changed) {
1202         av_log(NULL, AV_LOG_INFO,
1203                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1204                ist->file_index, ist->st->index,
1205                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1206                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1207         ost->resample_width   = dec->width;
1208         ost->resample_height  = dec->height;
1209         ost->resample_pix_fmt = dec->pix_fmt;
1210     }
1211
1212     ost->video_resample = dec->width   != enc->width  ||
1213                           dec->height  != enc->height ||
1214                           dec->pix_fmt != enc->pix_fmt;
1215
1216     if (ost->video_resample) {
1217         final_picture = &ost->resample_frame;
1218         if (!ost->img_resample_ctx || resample_changed) {
1219             /* initialize the destination picture */
1220             if (!ost->resample_frame.data[0]) {
1221                 avcodec_get_frame_defaults(&ost->resample_frame);
1222                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1223                                     enc->width, enc->height)) {
1224                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1225                     ffmpeg_exit(1);
1226                 }
1227             }
1228             /* initialize a new scaler context */
1229             sws_freeContext(ost->img_resample_ctx);
1230             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1231                                                    enc->width, enc->height, enc->pix_fmt,
1232                                                    ost->sws_flags, NULL, NULL, NULL);
1233             if (ost->img_resample_ctx == NULL) {
1234                 fprintf(stderr, "Cannot get resampling context\n");
1235                 ffmpeg_exit(1);
1236             }
1237         }
1238         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1239               0, ost->resample_height, final_picture->data, final_picture->linesize);
1240     }
1241 #endif
1242
1243     /* duplicates frame if needed */
1244     for(i=0;i<nb_frames;i++) {
1245         AVPacket pkt;
1246         av_init_packet(&pkt);
1247         pkt.stream_index= ost->index;
1248
1249         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1250             /* raw pictures are written as AVPicture structure to
1251                avoid any copies. We support temorarily the older
1252                method. */
1253             AVFrame* old_frame = enc->coded_frame;
1254             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1255             pkt.data= (uint8_t *)final_picture;
1256             pkt.size=  sizeof(AVPicture);
1257             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1258             pkt.flags |= AV_PKT_FLAG_KEY;
1259
1260             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1261             enc->coded_frame = old_frame;
1262         } else {
1263             AVFrame big_picture;
1264
1265             big_picture= *final_picture;
1266             /* better than nothing: use input picture interlaced
1267                settings */
1268             big_picture.interlaced_frame = in_picture->interlaced_frame;
1269             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1270                 if(top_field_first == -1)
1271                     big_picture.top_field_first = in_picture->top_field_first;
1272                 else
1273                     big_picture.top_field_first = top_field_first;
1274             }
1275
1276             /* handles sameq here. This is not correct because it may
1277                not be a global option */
1278             big_picture.quality = quality;
1279             if(!me_threshold)
1280                 big_picture.pict_type = 0;
1281 //            big_picture.pts = AV_NOPTS_VALUE;
1282             big_picture.pts= ost->sync_opts;
1283 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1284 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1285             if (ost->forced_kf_index < ost->forced_kf_count &&
1286                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1287                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1288                 ost->forced_kf_index++;
1289             }
1290             ret = avcodec_encode_video(enc,
1291                                        bit_buffer, bit_buffer_size,
1292                                        &big_picture);
1293             if (ret < 0) {
1294                 fprintf(stderr, "Video encoding failed\n");
1295                 ffmpeg_exit(1);
1296             }
1297
1298             if(ret>0){
1299                 pkt.data= bit_buffer;
1300                 pkt.size= ret;
1301                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1302                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1303 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1304    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1305    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1306
1307                 if(enc->coded_frame->key_frame)
1308                     pkt.flags |= AV_PKT_FLAG_KEY;
1309                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1310                 *frame_size = ret;
1311                 video_size += ret;
1312                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1313                 //        enc->frame_number-1, ret, enc->pict_type);
1314                 /* if two pass, output log */
1315                 if (ost->logfile && enc->stats_out) {
1316                     fprintf(ost->logfile, "%s", enc->stats_out);
1317                 }
1318             }
1319         }
1320         ost->sync_opts++;
1321         ost->frame_number++;
1322     }
1323 }
1324
1325 static double psnr(double d){
1326     return -10.0*log(d)/log(10.0);
1327 }
1328
1329 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1330                            int frame_size)
1331 {
1332     AVCodecContext *enc;
1333     int frame_number;
1334     double ti1, bitrate, avg_bitrate;
1335
1336     /* this is executed just the first time do_video_stats is called */
1337     if (!vstats_file) {
1338         vstats_file = fopen(vstats_filename, "w");
1339         if (!vstats_file) {
1340             perror("fopen");
1341             ffmpeg_exit(1);
1342         }
1343     }
1344
1345     enc = ost->st->codec;
1346     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1347         frame_number = ost->frame_number;
1348         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1349         if (enc->flags&CODEC_FLAG_PSNR)
1350             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1351
1352         fprintf(vstats_file,"f_size= %6d ", frame_size);
1353         /* compute pts value */
1354         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1355         if (ti1 < 0.01)
1356             ti1 = 0.01;
1357
1358         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1359         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1360         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1361             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1362         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1363     }
1364 }
1365
1366 static void print_report(AVFormatContext **output_files,
1367                          OutputStream **ost_table, int nb_ostreams,
1368                          int is_last_report)
1369 {
1370     char buf[1024];
1371     OutputStream *ost;
1372     AVFormatContext *oc;
1373     int64_t total_size;
1374     AVCodecContext *enc;
1375     int frame_number, vid, i;
1376     double bitrate;
1377     int64_t pts = INT64_MAX;
1378     static int64_t last_time = -1;
1379     static int qp_histogram[52];
1380
1381     if (!is_last_report) {
1382         int64_t cur_time;
1383         /* display the report every 0.5 seconds */
1384         cur_time = av_gettime();
1385         if (last_time == -1) {
1386             last_time = cur_time;
1387             return;
1388         }
1389         if ((cur_time - last_time) < 500000)
1390             return;
1391         last_time = cur_time;
1392     }
1393
1394
1395     oc = output_files[0];
1396
1397     total_size = avio_size(oc->pb);
1398     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1399         total_size= avio_tell(oc->pb);
1400
1401     buf[0] = '\0';
1402     vid = 0;
1403     for(i=0;i<nb_ostreams;i++) {
1404         float q = -1;
1405         ost = ost_table[i];
1406         enc = ost->st->codec;
1407         if (!ost->st->stream_copy && enc->coded_frame)
1408             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1409         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1410             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1411         }
1412         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1413             float t = (av_gettime()-timer_start) / 1000000.0;
1414
1415             frame_number = ost->frame_number;
1416             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1417                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1418             if(is_last_report)
1419                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1420             if(qp_hist){
1421                 int j;
1422                 int qp = lrintf(q);
1423                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1424                     qp_histogram[qp]++;
1425                 for(j=0; j<32; j++)
1426                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1427             }
1428             if (enc->flags&CODEC_FLAG_PSNR){
1429                 int j;
1430                 double error, error_sum=0;
1431                 double scale, scale_sum=0;
1432                 char type[3]= {'Y','U','V'};
1433                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1434                 for(j=0; j<3; j++){
1435                     if(is_last_report){
1436                         error= enc->error[j];
1437                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1438                     }else{
1439                         error= enc->coded_frame->error[j];
1440                         scale= enc->width*enc->height*255.0*255.0;
1441                     }
1442                     if(j) scale/=4;
1443                     error_sum += error;
1444                     scale_sum += scale;
1445                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1446                 }
1447                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1448             }
1449             vid = 1;
1450         }
1451         /* compute min output value */
1452         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1453                                       ost->st->time_base, AV_TIME_BASE_Q));
1454     }
1455
1456     if (verbose > 0 || is_last_report) {
1457         int hours, mins, secs, us;
1458         secs = pts / AV_TIME_BASE;
1459         us = pts % AV_TIME_BASE;
1460         mins = secs / 60;
1461         secs %= 60;
1462         hours = mins / 60;
1463         mins %= 60;
1464
1465         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1466
1467         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1468                  "size=%8.0fkB time=", total_size / 1024.0);
1469         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1470                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1471                  (100 * us) / AV_TIME_BASE);
1472         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1473                  "bitrate=%6.1fkbits/s", bitrate);
1474
1475         if (nb_frames_dup || nb_frames_drop)
1476           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1477                   nb_frames_dup, nb_frames_drop);
1478
1479         if (verbose >= 0)
1480             fprintf(stderr, "%s    \r", buf);
1481
1482         fflush(stderr);
1483     }
1484
1485     if (is_last_report && verbose >= 0){
1486         int64_t raw= audio_size + video_size + extra_size;
1487         fprintf(stderr, "\n");
1488         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1489                 video_size/1024.0,
1490                 audio_size/1024.0,
1491                 extra_size/1024.0,
1492                 100.0*(total_size - raw)/raw
1493         );
1494     }
1495 }
1496
1497 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1498 {
1499     int fill_char = 0x00;
1500     if (sample_fmt == AV_SAMPLE_FMT_U8)
1501         fill_char = 0x80;
1502     memset(buf, fill_char, size);
1503 }
1504
1505 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1506 static int output_packet(InputStream *ist, int ist_index,
1507                          OutputStream **ost_table, int nb_ostreams,
1508                          const AVPacket *pkt)
1509 {
1510     AVFormatContext *os;
1511     OutputStream *ost;
1512     int ret, i;
1513     int got_output;
1514     AVFrame picture;
1515     void *buffer_to_free = NULL;
1516     static unsigned int samples_size= 0;
1517     AVSubtitle subtitle, *subtitle_to_free;
1518     int64_t pkt_pts = AV_NOPTS_VALUE;
1519 #if CONFIG_AVFILTER
1520     int frame_available;
1521 #endif
1522     float quality;
1523
1524     AVPacket avpkt;
1525     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1526
1527     if(ist->next_pts == AV_NOPTS_VALUE)
1528         ist->next_pts= ist->pts;
1529
1530     if (pkt == NULL) {
1531         /* EOF handling */
1532         av_init_packet(&avpkt);
1533         avpkt.data = NULL;
1534         avpkt.size = 0;
1535         goto handle_eof;
1536     } else {
1537         avpkt = *pkt;
1538     }
1539
1540     if(pkt->dts != AV_NOPTS_VALUE)
1541         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1542     if(pkt->pts != AV_NOPTS_VALUE)
1543         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1544
1545     //while we have more to decode or while the decoder did output something on EOF
1546     while (avpkt.size > 0 || (!pkt && got_output)) {
1547         uint8_t *data_buf, *decoded_data_buf;
1548         int data_size, decoded_data_size;
1549     handle_eof:
1550         ist->pts= ist->next_pts;
1551
1552         if(avpkt.size && avpkt.size != pkt->size &&
1553            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1554             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1555             ist->showed_multi_packet_warning=1;
1556         }
1557
1558         /* decode the packet if needed */
1559         decoded_data_buf = NULL; /* fail safe */
1560         decoded_data_size= 0;
1561         data_buf  = avpkt.data;
1562         data_size = avpkt.size;
1563         subtitle_to_free = NULL;
1564         if (ist->decoding_needed) {
1565             switch(ist->st->codec->codec_type) {
1566             case AVMEDIA_TYPE_AUDIO:{
1567                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1568                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1569                     av_free(samples);
1570                     samples= av_malloc(samples_size);
1571                 }
1572                 decoded_data_size= samples_size;
1573                     /* XXX: could avoid copy if PCM 16 bits with same
1574                        endianness as CPU */
1575                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1576                                             &avpkt);
1577                 if (ret < 0)
1578                     goto fail_decode;
1579                 avpkt.data += ret;
1580                 avpkt.size -= ret;
1581                 data_size   = ret;
1582                 got_output  = decoded_data_size > 0;
1583                 /* Some bug in mpeg audio decoder gives */
1584                 /* decoded_data_size < 0, it seems they are overflows */
1585                 if (!got_output) {
1586                     /* no audio frame */
1587                     continue;
1588                 }
1589                 decoded_data_buf = (uint8_t *)samples;
1590                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1591                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1592                 break;}
1593             case AVMEDIA_TYPE_VIDEO:
1594                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1595                     /* XXX: allocate picture correctly */
1596                     avcodec_get_frame_defaults(&picture);
1597                     avpkt.pts = pkt_pts;
1598                     avpkt.dts = ist->pts;
1599                     pkt_pts = AV_NOPTS_VALUE;
1600
1601                     ret = avcodec_decode_video2(ist->st->codec,
1602                                                 &picture, &got_output, &avpkt);
1603                     quality = same_quality ? picture.quality : 0;
1604                     if (ret < 0)
1605                         goto fail_decode;
1606                     if (!got_output) {
1607                         /* no picture yet */
1608                         goto discard_packet;
1609                     }
1610                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1611                     if (ist->st->codec->time_base.num != 0) {
1612                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1613                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1614                                           ist->st->codec->time_base.num * ticks) /
1615                             ist->st->codec->time_base.den;
1616                     }
1617                     avpkt.size = 0;
1618                     buffer_to_free = NULL;
1619                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1620                     break;
1621             case AVMEDIA_TYPE_SUBTITLE:
1622                 ret = avcodec_decode_subtitle2(ist->st->codec,
1623                                                &subtitle, &got_output, &avpkt);
1624                 if (ret < 0)
1625                     goto fail_decode;
1626                 if (!got_output) {
1627                     goto discard_packet;
1628                 }
1629                 subtitle_to_free = &subtitle;
1630                 avpkt.size = 0;
1631                 break;
1632             default:
1633                 goto fail_decode;
1634             }
1635         } else {
1636             switch(ist->st->codec->codec_type) {
1637             case AVMEDIA_TYPE_AUDIO:
1638                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1639                     ist->st->codec->sample_rate;
1640                 break;
1641             case AVMEDIA_TYPE_VIDEO:
1642                 if (ist->st->codec->time_base.num != 0) {
1643                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1644                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1645                                       ist->st->codec->time_base.num * ticks) /
1646                         ist->st->codec->time_base.den;
1647                 }
1648                 break;
1649             }
1650             ret = avpkt.size;
1651             avpkt.size = 0;
1652         }
1653
1654 #if CONFIG_AVFILTER
1655         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1656         if (start_time == 0 || ist->pts >= start_time) {
1657             for(i=0;i<nb_ostreams;i++) {
1658                 ost = ost_table[i];
1659                 if (ost->input_video_filter && ost->source_index == ist_index) {
1660                     if (!picture.sample_aspect_ratio.num)
1661                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1662                     picture.pts = ist->pts;
1663
1664                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1665                 }
1666             }
1667         }
1668 #endif
1669
1670         // preprocess audio (volume)
1671         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1672             if (audio_volume != 256) {
1673                 short *volp;
1674                 volp = samples;
1675                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1676                     int v = ((*volp) * audio_volume + 128) >> 8;
1677                     if (v < -32768) v = -32768;
1678                     if (v >  32767) v = 32767;
1679                     *volp++ = v;
1680                 }
1681             }
1682         }
1683
1684         /* frame rate emulation */
1685         if (rate_emu) {
1686             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1687             int64_t now = av_gettime() - ist->start;
1688             if (pts > now)
1689                 usleep(pts - now);
1690         }
1691         /* if output time reached then transcode raw format,
1692            encode packets and output them */
1693         if (start_time == 0 || ist->pts >= start_time)
1694             for(i=0;i<nb_ostreams;i++) {
1695                 int frame_size;
1696
1697                 ost = ost_table[i];
1698                 if (ost->source_index == ist_index) {
1699 #if CONFIG_AVFILTER
1700                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1701                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1702                 while (frame_available) {
1703                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1704                         AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1705                         if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1706                             goto cont;
1707                         if (ost->picref) {
1708                             avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1709                             ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1710                         }
1711                     }
1712 #endif
1713                     os = output_files[ost->file_index];
1714
1715                     /* set the input output pts pairs */
1716                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1717
1718                     if (ost->encoding_needed) {
1719                         av_assert0(ist->decoding_needed);
1720                         switch(ost->st->codec->codec_type) {
1721                         case AVMEDIA_TYPE_AUDIO:
1722                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1723                             break;
1724                         case AVMEDIA_TYPE_VIDEO:
1725 #if CONFIG_AVFILTER
1726                             if (ost->picref->video && !ost->frame_aspect_ratio)
1727                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1728 #endif
1729                             do_video_out(os, ost, ist, &picture, &frame_size,
1730                                          same_quality ? quality : ost->st->codec->global_quality);
1731                             if (vstats_filename && frame_size)
1732                                 do_video_stats(os, ost, frame_size);
1733                             break;
1734                         case AVMEDIA_TYPE_SUBTITLE:
1735                             do_subtitle_out(os, ost, ist, &subtitle,
1736                                             pkt->pts);
1737                             break;
1738                         default:
1739                             abort();
1740                         }
1741                     } else {
1742                         AVFrame avframe; //FIXME/XXX remove this
1743                         AVPicture pict;
1744                         AVPacket opkt;
1745                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1746
1747                         av_init_packet(&opkt);
1748
1749                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1750 #if !CONFIG_AVFILTER
1751                             continue;
1752 #else
1753                             goto cont;
1754 #endif
1755
1756                         /* no reencoding needed : output the packet directly */
1757                         /* force the input stream PTS */
1758
1759                         avcodec_get_frame_defaults(&avframe);
1760                         ost->st->codec->coded_frame= &avframe;
1761                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1762
1763                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1764                             audio_size += data_size;
1765                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1766                             video_size += data_size;
1767                             ost->sync_opts++;
1768                         }
1769
1770                         opkt.stream_index= ost->index;
1771                         if(pkt->pts != AV_NOPTS_VALUE)
1772                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1773                         else
1774                             opkt.pts= AV_NOPTS_VALUE;
1775
1776                         if (pkt->dts == AV_NOPTS_VALUE)
1777                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1778                         else
1779                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1780                         opkt.dts -= ost_tb_start_time;
1781
1782                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1783                         opkt.flags= pkt->flags;
1784
1785                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1786                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1787                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1788                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1789                            ) {
1790                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1791                                 opkt.destruct= av_destruct_packet;
1792                         } else {
1793                             opkt.data = data_buf;
1794                             opkt.size = data_size;
1795                         }
1796
1797                         if (os->oformat->flags & AVFMT_RAWPICTURE) {
1798                             /* store AVPicture in AVPacket, as expected by the output format */
1799                             avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1800                             opkt.data = (uint8_t *)&pict;
1801                             opkt.size = sizeof(AVPicture);
1802                             opkt.flags |= AV_PKT_FLAG_KEY;
1803                         }
1804                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1805                         ost->st->codec->frame_number++;
1806                         ost->frame_number++;
1807                         av_free_packet(&opkt);
1808                     }
1809 #if CONFIG_AVFILTER
1810                     cont:
1811                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1812                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1813                     avfilter_unref_buffer(ost->picref);
1814                 }
1815 #endif
1816                 }
1817             }
1818
1819         av_free(buffer_to_free);
1820         /* XXX: allocate the subtitles in the codec ? */
1821         if (subtitle_to_free) {
1822             avsubtitle_free(subtitle_to_free);
1823             subtitle_to_free = NULL;
1824         }
1825     }
1826  discard_packet:
1827     if (pkt == NULL) {
1828         /* EOF handling */
1829
1830         for(i=0;i<nb_ostreams;i++) {
1831             ost = ost_table[i];
1832             if (ost->source_index == ist_index) {
1833                 AVCodecContext *enc= ost->st->codec;
1834                 os = output_files[ost->file_index];
1835
1836                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1837                     continue;
1838                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1839                     continue;
1840
1841                 if (ost->encoding_needed) {
1842                     for(;;) {
1843                         AVPacket pkt;
1844                         int fifo_bytes;
1845                         av_init_packet(&pkt);
1846                         pkt.stream_index= ost->index;
1847
1848                         switch(ost->st->codec->codec_type) {
1849                         case AVMEDIA_TYPE_AUDIO:
1850                             fifo_bytes = av_fifo_size(ost->fifo);
1851                             ret = 0;
1852                             /* encode any samples remaining in fifo */
1853                             if (fifo_bytes > 0) {
1854                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1855                                 int fs_tmp = enc->frame_size;
1856
1857                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1858                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1859                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1860                                 } else { /* pad */
1861                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1862                                     if (allocated_audio_buf_size < frame_bytes)
1863                                         ffmpeg_exit(1);
1864                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1865                                 }
1866
1867                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1868                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1869                                                           ost->st->time_base.num, enc->sample_rate);
1870                                 enc->frame_size = fs_tmp;
1871                             }
1872                             if(ret <= 0) {
1873                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1874                             }
1875                             if (ret < 0) {
1876                                 fprintf(stderr, "Audio encoding failed\n");
1877                                 ffmpeg_exit(1);
1878                             }
1879                             audio_size += ret;
1880                             pkt.flags |= AV_PKT_FLAG_KEY;
1881                             break;
1882                         case AVMEDIA_TYPE_VIDEO:
1883                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1884                             if (ret < 0) {
1885                                 fprintf(stderr, "Video encoding failed\n");
1886                                 ffmpeg_exit(1);
1887                             }
1888                             video_size += ret;
1889                             if(enc->coded_frame && enc->coded_frame->key_frame)
1890                                 pkt.flags |= AV_PKT_FLAG_KEY;
1891                             if (ost->logfile && enc->stats_out) {
1892                                 fprintf(ost->logfile, "%s", enc->stats_out);
1893                             }
1894                             break;
1895                         default:
1896                             ret=-1;
1897                         }
1898
1899                         if(ret<=0)
1900                             break;
1901                         pkt.data= bit_buffer;
1902                         pkt.size= ret;
1903                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1904                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1905                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1906                     }
1907                 }
1908             }
1909         }
1910     }
1911
1912     return 0;
1913  fail_decode:
1914     return -1;
1915 }
1916
1917 static void print_sdp(AVFormatContext **avc, int n)
1918 {
1919     char sdp[2048];
1920
1921     av_sdp_create(avc, n, sdp, sizeof(sdp));
1922     printf("SDP:\n%s\n", sdp);
1923     fflush(stdout);
1924 }
1925
1926 static int copy_chapters(int infile, int outfile)
1927 {
1928     AVFormatContext *is = input_files[infile].ctx;
1929     AVFormatContext *os = output_files[outfile];
1930     int i;
1931
1932     for (i = 0; i < is->nb_chapters; i++) {
1933         AVChapter *in_ch = is->chapters[i], *out_ch;
1934         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1935                                       AV_TIME_BASE_Q, in_ch->time_base);
1936         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1937                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1938
1939
1940         if (in_ch->end < ts_off)
1941             continue;
1942         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1943             break;
1944
1945         out_ch = av_mallocz(sizeof(AVChapter));
1946         if (!out_ch)
1947             return AVERROR(ENOMEM);
1948
1949         out_ch->id        = in_ch->id;
1950         out_ch->time_base = in_ch->time_base;
1951         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1952         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1953
1954         if (metadata_chapters_autocopy)
1955             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1956
1957         os->nb_chapters++;
1958         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1959         if (!os->chapters)
1960             return AVERROR(ENOMEM);
1961         os->chapters[os->nb_chapters - 1] = out_ch;
1962     }
1963     return 0;
1964 }
1965
1966 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1967                                     AVCodecContext *avctx)
1968 {
1969     char *p;
1970     int n = 1, i;
1971     int64_t t;
1972
1973     for (p = kf; *p; p++)
1974         if (*p == ',')
1975             n++;
1976     ost->forced_kf_count = n;
1977     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1978     if (!ost->forced_kf_pts) {
1979         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1980         ffmpeg_exit(1);
1981     }
1982     for (i = 0; i < n; i++) {
1983         p = i ? strchr(p, ',') + 1 : kf;
1984         t = parse_time_or_die("force_key_frames", p, 1);
1985         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1986     }
1987 }
1988
1989 /*
1990  * The following code is the main loop of the file converter
1991  */
1992 static int transcode(AVFormatContext **output_files,
1993                      int nb_output_files,
1994                      InputFile *input_files,
1995                      int nb_input_files,
1996                      StreamMap *stream_maps, int nb_stream_maps)
1997 {
1998     int ret = 0, i, j, k, n, nb_ostreams = 0, step;
1999
2000     AVFormatContext *is, *os;
2001     AVCodecContext *codec, *icodec;
2002     OutputStream *ost, **ost_table = NULL;
2003     InputStream *ist;
2004     char error[1024];
2005     int key;
2006     int want_sdp = 1;
2007     uint8_t no_packet[MAX_FILES]={0};
2008     int no_packet_count=0;
2009     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
2010     int nb_streams[AVMEDIA_TYPE_NB]={0};
2011
2012     if (rate_emu)
2013         for (i = 0; i < nb_input_streams; i++)
2014             input_streams[i].start = av_gettime();
2015
2016     /* output stream init */
2017     nb_ostreams = 0;
2018     for(i=0;i<nb_output_files;i++) {
2019         os = output_files[i];
2020         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2021             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2022             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2023             ret = AVERROR(EINVAL);
2024             goto fail;
2025         }
2026         nb_ostreams += os->nb_streams;
2027     }
2028     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2029         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2030         ret = AVERROR(EINVAL);
2031         goto fail;
2032     }
2033
2034     /* Sanity check the mapping args -- do the input files & streams exist? */
2035     for(i=0;i<nb_stream_maps;i++) {
2036         int fi = stream_maps[i].file_index;
2037         int si = stream_maps[i].stream_index;
2038
2039         if (fi < 0 || fi > nb_input_files - 1 ||
2040             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2041             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2042             ret = AVERROR(EINVAL);
2043             goto fail;
2044         }
2045         fi = stream_maps[i].sync_file_index;
2046         si = stream_maps[i].sync_stream_index;
2047         if (fi < 0 || fi > nb_input_files - 1 ||
2048             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2049             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2050             ret = AVERROR(EINVAL);
2051             goto fail;
2052         }
2053     }
2054
2055     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2056     if (!ost_table)
2057         goto fail;
2058
2059     for(k=0;k<nb_output_files;k++) {
2060         os = output_files[k];
2061         for(i=0;i<os->nb_streams;i++,n++) {
2062             nb_streams[os->streams[i]->codec->codec_type]++;
2063         }
2064     }
2065     for(step=1<<30; step; step>>=1){
2066         int found_streams[AVMEDIA_TYPE_NB]={0};
2067         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2068             nb_frame_threshold[j] += step;
2069
2070         for(j=0; j<nb_input_streams; j++) {
2071             int skip=0;
2072             ist = &input_streams[j];
2073             if(opt_programid){
2074                 int pi,si;
2075                 AVFormatContext *f= input_files[ ist->file_index ].ctx;
2076                 skip=1;
2077                 for(pi=0; pi<f->nb_programs; pi++){
2078                     AVProgram *p= f->programs[pi];
2079                     if(p->id == opt_programid)
2080                         for(si=0; si<p->nb_stream_indexes; si++){
2081                             if(f->streams[ p->stream_index[si] ] == ist->st)
2082                                 skip=0;
2083                         }
2084                 }
2085             }
2086             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2087                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2088                 found_streams[ist->st->codec->codec_type]++;
2089             }
2090         }
2091         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2092             if(found_streams[j] < nb_streams[j])
2093                 nb_frame_threshold[j] -= step;
2094     }
2095     n = 0;
2096     for(k=0;k<nb_output_files;k++) {
2097         os = output_files[k];
2098         for(i=0;i<os->nb_streams;i++,n++) {
2099             int found;
2100             ost = ost_table[n] = output_streams_for_file[k][i];
2101             if (nb_stream_maps > 0) {
2102                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2103                     stream_maps[n].stream_index;
2104
2105                 /* Sanity check that the stream types match */
2106                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2107                     int i= ost->file_index;
2108                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2109                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2110                         stream_maps[n].file_index, stream_maps[n].stream_index,
2111                         ost->file_index, ost->index);
2112                     ffmpeg_exit(1);
2113                 }
2114
2115             } else {
2116                 /* get corresponding input stream index : we select the first one with the right type */
2117                 found = 0;
2118                 for (j = 0; j < nb_input_streams; j++) {
2119                     int skip=0;
2120                     ist = &input_streams[j];
2121                     if(opt_programid){
2122                         int pi,si;
2123                         AVFormatContext *f = input_files[ist->file_index].ctx;
2124                         skip=1;
2125                         for(pi=0; pi<f->nb_programs; pi++){
2126                             AVProgram *p= f->programs[pi];
2127                             if(p->id == opt_programid)
2128                                 for(si=0; si<p->nb_stream_indexes; si++){
2129                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2130                                         skip=0;
2131                                 }
2132                         }
2133                     }
2134                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2135                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2136                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2137                             ost->source_index = j;
2138                             found = 1;
2139                             break;
2140                     }
2141                 }
2142
2143                 if (!found) {
2144                     if(! opt_programid) {
2145                         /* try again and reuse existing stream */
2146                         for (j = 0; j < nb_input_streams; j++) {
2147                             ist = &input_streams[j];
2148                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2149                                 && ist->st->discard != AVDISCARD_ALL) {
2150                                 ost->source_index = j;
2151                                 found = 1;
2152                             }
2153                         }
2154                     }
2155                     if (!found) {
2156                         int i= ost->file_index;
2157                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2158                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2159                                 ost->file_index, ost->index);
2160                         ffmpeg_exit(1);
2161                     }
2162                 }
2163             }
2164             ist = &input_streams[ost->source_index];
2165             ist->discard = 0;
2166             ost->sync_ist = (nb_stream_maps > 0) ?
2167                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2168                          stream_maps[n].sync_stream_index] : ist;
2169         }
2170     }
2171
2172     /* for each output stream, we compute the right encoding parameters */
2173     for(i=0;i<nb_ostreams;i++) {
2174         ost = ost_table[i];
2175         os = output_files[ost->file_index];
2176         ist = &input_streams[ost->source_index];
2177
2178         codec = ost->st->codec;
2179         icodec = ist->st->codec;
2180
2181         if (metadata_streams_autocopy)
2182             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2183                          AV_DICT_DONT_OVERWRITE);
2184
2185         ost->st->disposition = ist->st->disposition;
2186         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2187         codec->chroma_sample_location = icodec->chroma_sample_location;
2188
2189         if (ost->st->stream_copy) {
2190             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2191
2192             if (extra_size > INT_MAX)
2193                 goto fail;
2194
2195             /* if stream_copy is selected, no need to decode or encode */
2196             codec->codec_id = icodec->codec_id;
2197             codec->codec_type = icodec->codec_type;
2198
2199             if(!codec->codec_tag){
2200                 if(   !os->oformat->codec_tag
2201                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2202                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2203                     codec->codec_tag = icodec->codec_tag;
2204             }
2205
2206             codec->bit_rate = icodec->bit_rate;
2207             codec->rc_max_rate    = icodec->rc_max_rate;
2208             codec->rc_buffer_size = icodec->rc_buffer_size;
2209             codec->extradata= av_mallocz(extra_size);
2210             if (!codec->extradata)
2211                 goto fail;
2212             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2213             codec->extradata_size= icodec->extradata_size;
2214             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){
2215                 codec->time_base = icodec->time_base;
2216                 codec->time_base.num *= icodec->ticks_per_frame;
2217                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2218                           codec->time_base.num, codec->time_base.den, INT_MAX);
2219             }else
2220                 codec->time_base = ist->st->time_base;
2221             switch(codec->codec_type) {
2222             case AVMEDIA_TYPE_AUDIO:
2223                 if(audio_volume != 256) {
2224                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2225                     ffmpeg_exit(1);
2226                 }
2227                 codec->channel_layout = icodec->channel_layout;
2228                 codec->sample_rate = icodec->sample_rate;
2229                 codec->channels = icodec->channels;
2230                 codec->frame_size = icodec->frame_size;
2231                 codec->audio_service_type = icodec->audio_service_type;
2232                 codec->block_align= icodec->block_align;
2233                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2234                     codec->block_align= 0;
2235                 if(codec->codec_id == CODEC_ID_AC3)
2236                     codec->block_align= 0;
2237                 break;
2238             case AVMEDIA_TYPE_VIDEO:
2239                 codec->pix_fmt = icodec->pix_fmt;
2240                 codec->width = icodec->width;
2241                 codec->height = icodec->height;
2242                 codec->has_b_frames = icodec->has_b_frames;
2243                 if (!codec->sample_aspect_ratio.num) {
2244                     codec->sample_aspect_ratio =
2245                     ost->st->sample_aspect_ratio =
2246                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2247                         ist->st->codec->sample_aspect_ratio.num ?
2248                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2249                 }
2250                 break;
2251             case AVMEDIA_TYPE_SUBTITLE:
2252                 codec->width = icodec->width;
2253                 codec->height = icodec->height;
2254                 break;
2255             case AVMEDIA_TYPE_DATA:
2256                 break;
2257             default:
2258                 abort();
2259             }
2260         } else {
2261             if (!ost->enc)
2262                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2263             switch(codec->codec_type) {
2264             case AVMEDIA_TYPE_AUDIO:
2265                 ost->fifo= av_fifo_alloc(1024);
2266                 if(!ost->fifo)
2267                     goto fail;
2268                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2269                 if (!codec->sample_rate) {
2270                     codec->sample_rate = icodec->sample_rate;
2271                     if (icodec->lowres)
2272                         codec->sample_rate >>= icodec->lowres;
2273                 }
2274                 choose_sample_rate(ost->st, ost->enc);
2275                 codec->time_base = (AVRational){1, codec->sample_rate};
2276                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2277                     codec->sample_fmt = icodec->sample_fmt;
2278                 choose_sample_fmt(ost->st, ost->enc);
2279                 if (!codec->channels) {
2280                     codec->channels = icodec->channels;
2281                     codec->channel_layout = icodec->channel_layout;
2282                 }
2283                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2284                     codec->channel_layout = 0;
2285                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2286                 icodec->request_channels = codec->channels;
2287                 ist->decoding_needed = 1;
2288                 ost->encoding_needed = 1;
2289                 ost->resample_sample_fmt  = icodec->sample_fmt;
2290                 ost->resample_sample_rate = icodec->sample_rate;
2291                 ost->resample_channels    = icodec->channels;
2292                 break;
2293             case AVMEDIA_TYPE_VIDEO:
2294                 if (codec->pix_fmt == PIX_FMT_NONE)
2295                     codec->pix_fmt = icodec->pix_fmt;
2296                 choose_pixel_fmt(ost->st, ost->enc);
2297
2298                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2299                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2300                     ffmpeg_exit(1);
2301                 }
2302                 ost->video_resample = codec->width   != icodec->width  ||
2303                                       codec->height  != icodec->height ||
2304                                       codec->pix_fmt != icodec->pix_fmt;
2305                 if (ost->video_resample) {
2306                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2307                 }
2308                 if (!codec->width || !codec->height) {
2309                     codec->width  = icodec->width;
2310                     codec->height = icodec->height;
2311                 }
2312                 ost->resample_height = icodec->height;
2313                 ost->resample_width  = icodec->width;
2314                 ost->resample_pix_fmt= icodec->pix_fmt;
2315                 ost->encoding_needed = 1;
2316                 ist->decoding_needed = 1;
2317
2318                 if (!ost->frame_rate.num)
2319                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2320                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2321                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2322                     ost->frame_rate = ost->enc->supported_framerates[idx];
2323                 }
2324                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2325                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2326                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2327                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2328                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2329                 }
2330
2331 #if CONFIG_AVFILTER
2332                 if (configure_video_filters(ist, ost)) {
2333                     fprintf(stderr, "Error opening filters!\n");
2334                     exit(1);
2335                 }
2336 #endif
2337                 break;
2338             case AVMEDIA_TYPE_SUBTITLE:
2339                 ost->encoding_needed = 1;
2340                 ist->decoding_needed = 1;
2341                 break;
2342             default:
2343                 abort();
2344                 break;
2345             }
2346             /* two pass mode */
2347             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2348                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2349                 char logfilename[1024];
2350                 FILE *f;
2351
2352                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2353                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2354                          i);
2355                 if (codec->flags & CODEC_FLAG_PASS1) {
2356                     f = fopen(logfilename, "wb");
2357                     if (!f) {
2358                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2359                         ffmpeg_exit(1);
2360                     }
2361                     ost->logfile = f;
2362                 } else {
2363                     char  *logbuffer;
2364                     size_t logbuffer_size;
2365                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2366                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2367                         ffmpeg_exit(1);
2368                     }
2369                     codec->stats_in = logbuffer;
2370                 }
2371             }
2372         }
2373         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2374             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2375             int size= codec->width * codec->height;
2376             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2377         }
2378     }
2379
2380     if (!bit_buffer)
2381         bit_buffer = av_malloc(bit_buffer_size);
2382     if (!bit_buffer) {
2383         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2384                 bit_buffer_size);
2385         ret = AVERROR(ENOMEM);
2386         goto fail;
2387     }
2388
2389     /* open each encoder */
2390     for(i=0;i<nb_ostreams;i++) {
2391         ost = ost_table[i];
2392         if (ost->encoding_needed) {
2393             AVCodec *codec = ost->enc;
2394             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2395             if (!codec) {
2396                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2397                          ost->st->codec->codec_id, ost->file_index, ost->index);
2398                 ret = AVERROR(EINVAL);
2399                 goto dump_format;
2400             }
2401             if (dec->subtitle_header) {
2402                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2403                 if (!ost->st->codec->subtitle_header) {
2404                     ret = AVERROR(ENOMEM);
2405                     goto dump_format;
2406                 }
2407                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2408                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2409             }
2410             if (avcodec_open(ost->st->codec, codec) < 0) {
2411                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2412                         ost->file_index, ost->index);
2413                 ret = AVERROR(EINVAL);
2414                 goto dump_format;
2415             }
2416             extra_size += ost->st->codec->extradata_size;
2417         }
2418     }
2419
2420     /* open each decoder */
2421     for (i = 0; i < nb_input_streams; i++) {
2422         ist = &input_streams[i];
2423         if (ist->decoding_needed) {
2424             AVCodec *codec = ist->dec;
2425             if (!codec)
2426                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2427             if (!codec) {
2428                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2429                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2430                 ret = AVERROR(EINVAL);
2431                 goto dump_format;
2432             }
2433             if (avcodec_open(ist->st->codec, codec) < 0) {
2434                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2435                         ist->file_index, ist->st->index);
2436                 ret = AVERROR(EINVAL);
2437                 goto dump_format;
2438             }
2439             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2440             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2441         }
2442     }
2443
2444     /* init pts */
2445     for (i = 0; i < nb_input_streams; i++) {
2446         AVStream *st;
2447         ist = &input_streams[i];
2448         st= ist->st;
2449         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2450         ist->next_pts = AV_NOPTS_VALUE;
2451         ist->is_start = 1;
2452     }
2453
2454     /* set meta data information from input file if required */
2455     for (i=0;i<nb_meta_data_maps;i++) {
2456         AVFormatContext *files[2];
2457         AVDictionary    **meta[2];
2458         int j;
2459
2460 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2461         if ((index) < 0 || (index) >= (nb_elems)) {\
2462             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2463                      (desc), (index));\
2464             ret = AVERROR(EINVAL);\
2465             goto dump_format;\
2466         }
2467
2468         int out_file_index = meta_data_maps[i][0].file;
2469         int in_file_index = meta_data_maps[i][1].file;
2470         if (in_file_index < 0 || out_file_index < 0)
2471             continue;
2472         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2473         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2474
2475         files[0] = output_files[out_file_index];
2476         files[1] = input_files[in_file_index].ctx;
2477
2478         for (j = 0; j < 2; j++) {
2479             MetadataMap *map = &meta_data_maps[i][j];
2480
2481             switch (map->type) {
2482             case 'g':
2483                 meta[j] = &files[j]->metadata;
2484                 break;
2485             case 's':
2486                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2487                 meta[j] = &files[j]->streams[map->index]->metadata;
2488                 break;
2489             case 'c':
2490                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2491                 meta[j] = &files[j]->chapters[map->index]->metadata;
2492                 break;
2493             case 'p':
2494                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2495                 meta[j] = &files[j]->programs[map->index]->metadata;
2496                 break;
2497             }
2498         }
2499
2500         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2501     }
2502
2503     /* copy global metadata by default */
2504     if (metadata_global_autocopy) {
2505
2506         for (i = 0; i < nb_output_files; i++)
2507             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2508                          AV_DICT_DONT_OVERWRITE);
2509     }
2510
2511     /* copy chapters according to chapter maps */
2512     for (i = 0; i < nb_chapter_maps; i++) {
2513         int infile  = chapter_maps[i].in_file;
2514         int outfile = chapter_maps[i].out_file;
2515
2516         if (infile < 0 || outfile < 0)
2517             continue;
2518         if (infile >= nb_input_files) {
2519             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2520             ret = AVERROR(EINVAL);
2521             goto dump_format;
2522         }
2523         if (outfile >= nb_output_files) {
2524             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2525             ret = AVERROR(EINVAL);
2526             goto dump_format;
2527         }
2528         copy_chapters(infile, outfile);
2529     }
2530
2531     /* copy chapters from the first input file that has them*/
2532     if (!nb_chapter_maps)
2533         for (i = 0; i < nb_input_files; i++) {
2534             if (!input_files[i].ctx->nb_chapters)
2535                 continue;
2536
2537             for (j = 0; j < nb_output_files; j++)
2538                 if ((ret = copy_chapters(i, j)) < 0)
2539                     goto dump_format;
2540             break;
2541         }
2542
2543     /* open files and write file headers */
2544     for(i=0;i<nb_output_files;i++) {
2545         os = output_files[i];
2546         if (av_write_header(os) < 0) {
2547             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2548             ret = AVERROR(EINVAL);
2549             goto dump_format;
2550         }
2551         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2552             want_sdp = 0;
2553         }
2554     }
2555
2556  dump_format:
2557     /* dump the file output parameters - cannot be done before in case
2558        of stream copy */
2559     for(i=0;i<nb_output_files;i++) {
2560         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2561     }
2562
2563     /* dump the stream mapping */
2564     if (verbose >= 0) {
2565         fprintf(stderr, "Stream mapping:\n");
2566         for(i=0;i<nb_ostreams;i++) {
2567             ost = ost_table[i];
2568             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2569                     input_streams[ost->source_index].file_index,
2570                     input_streams[ost->source_index].st->index,
2571                     ost->file_index,
2572                     ost->index);
2573             if (ost->sync_ist != &input_streams[ost->source_index])
2574                 fprintf(stderr, " [sync #%d.%d]",
2575                         ost->sync_ist->file_index,
2576                         ost->sync_ist->st->index);
2577             fprintf(stderr, "\n");
2578         }
2579     }
2580
2581     if (ret) {
2582         fprintf(stderr, "%s\n", error);
2583         goto fail;
2584     }
2585
2586     if (want_sdp) {
2587         print_sdp(output_files, nb_output_files);
2588     }
2589
2590     if (!using_stdin) {
2591         if(verbose >= 0)
2592             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2593         avio_set_interrupt_cb(decode_interrupt_cb);
2594     }
2595     term_init();
2596
2597     timer_start = av_gettime();
2598
2599     for(; received_sigterm == 0;) {
2600         int file_index, ist_index;
2601         AVPacket pkt;
2602         double ipts_min;
2603         double opts_min;
2604
2605     redo:
2606         ipts_min= 1e100;
2607         opts_min= 1e100;
2608         /* if 'q' pressed, exits */
2609         if (!using_stdin) {
2610             if (q_pressed)
2611                 break;
2612             /* read_key() returns 0 on EOF */
2613             key = read_key();
2614             if (key == 'q')
2615                 break;
2616             if (key == '+') verbose++;
2617             if (key == '-') verbose--;
2618             if (key == 's') qp_hist     ^= 1;
2619             if (key == 'h'){
2620                 if (do_hex_dump){
2621                     do_hex_dump = do_pkt_dump = 0;
2622                 } else if(do_pkt_dump){
2623                     do_hex_dump = 1;
2624                 } else
2625                     do_pkt_dump = 1;
2626                 av_log_set_level(AV_LOG_DEBUG);
2627             }
2628             if (key == 'd' || key == 'D'){
2629                 int debug=0;
2630                 if(key == 'D') {
2631                     debug = input_streams[0].st->codec->debug<<1;
2632                     if(!debug) debug = 1;
2633                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2634                         debug += debug;
2635                 }else
2636                     scanf("%d", &debug);
2637                 for(i=0;i<nb_input_streams;i++) {
2638                     input_streams[i].st->codec->debug = debug;
2639                 }
2640                 for(i=0;i<nb_ostreams;i++) {
2641                     ost = ost_table[i];
2642                     ost->st->codec->debug = debug;
2643                 }
2644                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2645                 fprintf(stderr,"debug=%d\n", debug);
2646             }
2647             if (key == '?'){
2648                 fprintf(stderr, "key    function\n"
2649                                 "?      show this help\n"
2650                                 "+      increase verbosity\n"
2651                                 "-      decrease verbosity\n"
2652                                 "D      cycle through available debug modes\n"
2653                                 "h      dump packets/hex press to cycle through the 3 states\n"
2654                                 "q      quit\n"
2655                                 "s      Show QP histogram\n"
2656                 );
2657             }
2658         }
2659
2660         /* select the stream that we must read now by looking at the
2661            smallest output pts */
2662         file_index = -1;
2663         for(i=0;i<nb_ostreams;i++) {
2664             double ipts, opts;
2665             ost = ost_table[i];
2666             os = output_files[ost->file_index];
2667             ist = &input_streams[ost->source_index];
2668             if(ist->is_past_recording_time || no_packet[ist->file_index])
2669                 continue;
2670                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2671             ipts = (double)ist->pts;
2672             if (!input_files[ist->file_index].eof_reached){
2673                 if(ipts < ipts_min) {
2674                     ipts_min = ipts;
2675                     if(input_sync ) file_index = ist->file_index;
2676                 }
2677                 if(opts < opts_min) {
2678                     opts_min = opts;
2679                     if(!input_sync) file_index = ist->file_index;
2680                 }
2681             }
2682             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2683                 file_index= -1;
2684                 break;
2685             }
2686         }
2687         /* if none, if is finished */
2688         if (file_index < 0) {
2689             if(no_packet_count){
2690                 no_packet_count=0;
2691                 memset(no_packet, 0, sizeof(no_packet));
2692                 usleep(10000);
2693                 continue;
2694             }
2695             break;
2696         }
2697
2698         /* finish if limit size exhausted */
2699         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2700             break;
2701
2702         /* read a frame from it and output it in the fifo */
2703         is = input_files[file_index].ctx;
2704         ret= av_read_frame(is, &pkt);
2705         if(ret == AVERROR(EAGAIN)){
2706             no_packet[file_index]=1;
2707             no_packet_count++;
2708             continue;
2709         }
2710         if (ret < 0) {
2711             input_files[file_index].eof_reached = 1;
2712             if (opt_shortest)
2713                 break;
2714             else
2715                 continue;
2716         }
2717
2718         no_packet_count=0;
2719         memset(no_packet, 0, sizeof(no_packet));
2720
2721         if (do_pkt_dump) {
2722             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2723                              is->streams[pkt.stream_index]);
2724         }
2725         /* the following test is needed in case new streams appear
2726            dynamically in stream : we ignore them */
2727         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2728             goto discard_packet;
2729         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2730         ist = &input_streams[ist_index];
2731         if (ist->discard)
2732             goto discard_packet;
2733
2734         if (pkt.dts != AV_NOPTS_VALUE)
2735             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2736         if (pkt.pts != AV_NOPTS_VALUE)
2737             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2738
2739         if (ist->ts_scale) {
2740             if(pkt.pts != AV_NOPTS_VALUE)
2741                 pkt.pts *= ist->ts_scale;
2742             if(pkt.dts != AV_NOPTS_VALUE)
2743                 pkt.dts *= ist->ts_scale;
2744         }
2745
2746 //        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);
2747         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2748             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2749             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2750             int64_t delta= pkt_dts - ist->next_pts;
2751             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2752                 input_files[ist->file_index].ts_offset -= delta;
2753                 if (verbose > 2)
2754                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2755                             delta, input_files[ist->file_index].ts_offset);
2756                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2757                 if(pkt.pts != AV_NOPTS_VALUE)
2758                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2759             }
2760         }
2761
2762         /* finish if recording time exhausted */
2763         if (recording_time != INT64_MAX &&
2764             (pkt.pts != AV_NOPTS_VALUE ?
2765                 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000})
2766                     :
2767                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, recording_time + start_time, (AVRational){1, 1000000})
2768             )>= 0) {
2769             ist->is_past_recording_time = 1;
2770             goto discard_packet;
2771         }
2772
2773         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2774         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2775
2776             if (verbose >= 0)
2777                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2778                         ist->file_index, ist->st->index);
2779             if (exit_on_error)
2780                 ffmpeg_exit(1);
2781             av_free_packet(&pkt);
2782             goto redo;
2783         }
2784
2785     discard_packet:
2786         av_free_packet(&pkt);
2787
2788         /* dump report by using the output first video and audio streams */
2789         print_report(output_files, ost_table, nb_ostreams, 0);
2790     }
2791
2792     /* at the end of stream, we must flush the decoder buffers */
2793     for (i = 0; i < nb_input_streams; i++) {
2794         ist = &input_streams[i];
2795         if (ist->decoding_needed) {
2796             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2797         }
2798     }
2799
2800     term_exit();
2801
2802     /* write the trailer if needed and close file */
2803     for(i=0;i<nb_output_files;i++) {
2804         os = output_files[i];
2805         av_write_trailer(os);
2806     }
2807
2808     /* dump report by using the first video and audio streams */
2809     print_report(output_files, ost_table, nb_ostreams, 1);
2810
2811     /* close each encoder */
2812     for(i=0;i<nb_ostreams;i++) {
2813         ost = ost_table[i];
2814         if (ost->encoding_needed) {
2815             av_freep(&ost->st->codec->stats_in);
2816             avcodec_close(ost->st->codec);
2817         }
2818 #if CONFIG_AVFILTER
2819         avfilter_graph_free(&ost->graph);
2820 #endif
2821     }
2822
2823     /* close each decoder */
2824     for (i = 0; i < nb_input_streams; i++) {
2825         ist = &input_streams[i];
2826         if (ist->decoding_needed) {
2827             avcodec_close(ist->st->codec);
2828         }
2829     }
2830
2831     /* finished ! */
2832     ret = 0;
2833
2834  fail:
2835     av_freep(&bit_buffer);
2836
2837     if (ost_table) {
2838         for(i=0;i<nb_ostreams;i++) {
2839             ost = ost_table[i];
2840             if (ost) {
2841                 if (ost->st->stream_copy)
2842                     av_freep(&ost->st->codec->extradata);
2843                 if (ost->logfile) {
2844                     fclose(ost->logfile);
2845                     ost->logfile = NULL;
2846                 }
2847                 av_fifo_free(ost->fifo); /* works even if fifo is not
2848                                              initialized but set to zero */
2849                 av_freep(&ost->st->codec->subtitle_header);
2850                 av_free(ost->resample_frame.data[0]);
2851                 av_free(ost->forced_kf_pts);
2852                 if (ost->video_resample)
2853                     sws_freeContext(ost->img_resample_ctx);
2854                 if (ost->resample)
2855                     audio_resample_close(ost->resample);
2856                 if (ost->reformat_ctx)
2857                     av_audio_convert_free(ost->reformat_ctx);
2858                 av_free(ost);
2859             }
2860         }
2861         av_free(ost_table);
2862     }
2863     return ret;
2864 }
2865
2866 static int opt_format(const char *opt, const char *arg)
2867 {
2868     last_asked_format = arg;
2869     return 0;
2870 }
2871
2872 static int opt_video_rc_override_string(const char *opt, const char *arg)
2873 {
2874     video_rc_override_string = arg;
2875     return 0;
2876 }
2877
2878 static int opt_me_threshold(const char *opt, const char *arg)
2879 {
2880     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2881     return 0;
2882 }
2883
2884 static int opt_verbose(const char *opt, const char *arg)
2885 {
2886     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2887     return 0;
2888 }
2889
2890 static int opt_frame_rate(const char *opt, const char *arg)
2891 {
2892     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2893         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2894         ffmpeg_exit(1);
2895     }
2896     return 0;
2897 }
2898
2899 static int opt_bitrate(const char *opt, const char *arg)
2900 {
2901     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2902
2903     opt_default(opt, arg);
2904
2905     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2906         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2907
2908     return 0;
2909 }
2910
2911 static int opt_frame_crop(const char *opt, const char *arg)
2912 {
2913     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2914     return AVERROR(EINVAL);
2915 }
2916
2917 static int opt_frame_size(const char *opt, const char *arg)
2918 {
2919     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2920         fprintf(stderr, "Incorrect frame size\n");
2921         return AVERROR(EINVAL);
2922     }
2923     return 0;
2924 }
2925
2926 static int opt_pad(const char *opt, const char *arg) {
2927     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2928     return -1;
2929 }
2930
2931 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2932 {
2933     if (strcmp(arg, "list")) {
2934         frame_pix_fmt = av_get_pix_fmt(arg);
2935         if (frame_pix_fmt == PIX_FMT_NONE) {
2936             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2937             return AVERROR(EINVAL);
2938         }
2939     } else {
2940         opt_pix_fmts(NULL, NULL);
2941         ffmpeg_exit(0);
2942     }
2943     return 0;
2944 }
2945
2946 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2947 {
2948     int x = 0, y = 0;
2949     double ar = 0;
2950     const char *p;
2951     char *end;
2952
2953     p = strchr(arg, ':');
2954     if (p) {
2955         x = strtol(arg, &end, 10);
2956         if (end == p)
2957             y = strtol(end+1, &end, 10);
2958         if (x > 0 && y > 0)
2959             ar = (double)x / (double)y;
2960     } else
2961         ar = strtod(arg, NULL);
2962
2963     if (!ar) {
2964         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2965         return AVERROR(EINVAL);
2966     }
2967     frame_aspect_ratio = ar;
2968     return 0;
2969 }
2970
2971 static int opt_metadata(const char *opt, const char *arg)
2972 {
2973     char *mid= strchr(arg, '=');
2974
2975     if(!mid){
2976         fprintf(stderr, "Missing =\n");
2977         ffmpeg_exit(1);
2978     }
2979     *mid++= 0;
2980
2981     av_dict_set(&metadata, arg, mid, 0);
2982
2983     return 0;
2984 }
2985
2986 static int opt_qscale(const char *opt, const char *arg)
2987 {
2988     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2989     if (video_qscale <= 0 || video_qscale > 255) {
2990         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2991         return AVERROR(EINVAL);
2992     }
2993     return 0;
2994 }
2995
2996 static int opt_top_field_first(const char *opt, const char *arg)
2997 {
2998     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2999     opt_default(opt, arg);
3000     return 0;
3001 }
3002
3003 static int opt_thread_count(const char *opt, const char *arg)
3004 {
3005     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3006 #if !HAVE_THREADS
3007     if (verbose >= 0)
3008         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3009 #endif
3010     return 0;
3011 }
3012
3013 static int opt_audio_sample_fmt(const char *opt, const char *arg)
3014 {
3015     if (strcmp(arg, "list")) {
3016         audio_sample_fmt = av_get_sample_fmt(arg);
3017         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
3018             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
3019             return AVERROR(EINVAL);
3020         }
3021     } else {
3022         int i;
3023         char fmt_str[128];
3024         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
3025             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
3026         ffmpeg_exit(0);
3027     }
3028     return 0;
3029 }
3030
3031 static int opt_audio_rate(const char *opt, const char *arg)
3032 {
3033     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3034     return 0;
3035 }
3036
3037 static int opt_audio_channels(const char *opt, const char *arg)
3038 {
3039     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3040     return 0;
3041 }
3042
3043 static int opt_video_channel(const char *opt, const char *arg)
3044 {
3045     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3046     return 0;
3047 }
3048
3049 static int opt_video_standard(const char *opt, const char *arg)
3050 {
3051     video_standard = av_strdup(arg);
3052     return 0;
3053 }
3054
3055 static int opt_codec(const char *opt, const char *arg)
3056 {
3057     int *pstream_copy; char **pcodec_name; enum AVMediaType codec_type;
3058
3059     if      (!strcmp(opt, "acodec")) { pstream_copy = &audio_stream_copy;    pcodec_name = &audio_codec_name;    codec_type = AVMEDIA_TYPE_AUDIO;    }
3060     else if (!strcmp(opt, "vcodec")) { pstream_copy = &video_stream_copy;    pcodec_name = &video_codec_name;    codec_type = AVMEDIA_TYPE_VIDEO;    }
3061     else if (!strcmp(opt, "scodec")) { pstream_copy = &subtitle_stream_copy; pcodec_name = &subtitle_codec_name; codec_type = AVMEDIA_TYPE_SUBTITLE; }
3062     else if (!strcmp(opt, "dcodec")) { pstream_copy = &data_stream_copy;     pcodec_name = &data_codec_name;     codec_type = AVMEDIA_TYPE_DATA;     }
3063
3064     av_freep(pcodec_name);
3065     if (!strcmp(arg, "copy")) {
3066         *pstream_copy = 1;
3067     } else {
3068         *pcodec_name = av_strdup(arg);
3069     }
3070     return 0;
3071 }
3072
3073 static int opt_codec_tag(const char *opt, const char *arg)
3074 {
3075     char *tail;
3076     uint32_t *codec_tag;
3077
3078     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3079                 !strcmp(opt, "vtag") ? &video_codec_tag :
3080                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3081     if (!codec_tag)
3082         return -1;
3083
3084     *codec_tag = strtol(arg, &tail, 0);
3085     if (!tail || *tail)
3086         *codec_tag = AV_RL32(arg);
3087
3088     return 0;
3089 }
3090
3091 static int opt_map(const char *opt, const char *arg)
3092 {
3093     StreamMap *m;
3094     char *p;
3095
3096     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3097     m = &stream_maps[nb_stream_maps-1];
3098
3099     m->file_index = strtol(arg, &p, 0);
3100     if (*p)
3101         p++;
3102
3103     m->stream_index = strtol(p, &p, 0);
3104     if (*p) {
3105         p++;
3106         m->sync_file_index = strtol(p, &p, 0);
3107         if (*p)
3108             p++;
3109         m->sync_stream_index = strtol(p, &p, 0);
3110     } else {
3111         m->sync_file_index = m->file_index;
3112         m->sync_stream_index = m->stream_index;
3113     }
3114     return 0;
3115 }
3116
3117 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3118 {
3119     *endptr = arg;
3120     if (*arg == ',') {
3121         *type = *(++arg);
3122         switch (*arg) {
3123         case 'g':
3124             break;
3125         case 's':
3126         case 'c':
3127         case 'p':
3128             *index = strtol(++arg, endptr, 0);
3129             break;
3130         default:
3131             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3132             ffmpeg_exit(1);
3133         }
3134     } else
3135         *type = 'g';
3136 }
3137
3138 static int opt_map_metadata(const char *opt, const char *arg)
3139 {
3140     MetadataMap *m, *m1;
3141     char *p;
3142
3143     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3144                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3145
3146     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3147     m->file = strtol(arg, &p, 0);
3148     parse_meta_type(p, &m->type, &m->index, &p);
3149     if (*p)
3150         p++;
3151
3152     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3153     m1->file = strtol(p, &p, 0);
3154     parse_meta_type(p, &m1->type, &m1->index, &p);
3155
3156     if (m->type == 'g' || m1->type == 'g')
3157         metadata_global_autocopy = 0;
3158     if (m->type == 's' || m1->type == 's')
3159         metadata_streams_autocopy = 0;
3160     if (m->type == 'c' || m1->type == 'c')
3161         metadata_chapters_autocopy = 0;
3162
3163     return 0;
3164 }
3165
3166 static int opt_map_meta_data(const char *opt, const char *arg)
3167 {
3168     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3169                     "Use -map_metadata instead.\n");
3170     return opt_map_metadata(opt, arg);
3171 }
3172
3173 static int opt_map_chapters(const char *opt, const char *arg)
3174 {
3175     ChapterMap *c;
3176     char *p;
3177
3178     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3179                               nb_chapter_maps + 1);
3180     c = &chapter_maps[nb_chapter_maps - 1];
3181     c->out_file = strtol(arg, &p, 0);
3182     if (*p)
3183         p++;
3184
3185     c->in_file = strtol(p, &p, 0);
3186     return 0;
3187 }
3188
3189 static int opt_input_ts_scale(const char *opt, const char *arg)
3190 {
3191     unsigned int stream;
3192     double scale;
3193     char *p;
3194
3195     stream = strtol(arg, &p, 0);
3196     if (*p)
3197         p++;
3198     scale= strtod(p, &p);
3199
3200     if(stream >= MAX_STREAMS)
3201         ffmpeg_exit(1);
3202
3203     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3204     ts_scale[stream] = scale;
3205     return 0;
3206 }
3207
3208 static int opt_recording_time(const char *opt, const char *arg)
3209 {
3210     recording_time = parse_time_or_die(opt, arg, 1);
3211     return 0;
3212 }
3213
3214 static int opt_start_time(const char *opt, const char *arg)
3215 {
3216     start_time = parse_time_or_die(opt, arg, 1);
3217     return 0;
3218 }
3219
3220 static int opt_recording_timestamp(const char *opt, const char *arg)
3221 {
3222     char buf[128];
3223     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3224     struct tm time = *gmtime((time_t*)&recording_timestamp);
3225     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3226     opt_metadata("metadata", buf);
3227
3228     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3229                                  "tag instead.\n", opt);
3230     return 0;
3231 }
3232
3233 static int opt_input_ts_offset(const char *opt, const char *arg)
3234 {
3235     input_ts_offset = parse_time_or_die(opt, arg, 1);
3236     return 0;
3237 }
3238
3239 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3240 {
3241     const char *codec_string = encoder ? "encoder" : "decoder";
3242     AVCodec *codec;
3243
3244     if(!name)
3245         return CODEC_ID_NONE;
3246     codec = encoder ?
3247         avcodec_find_encoder_by_name(name) :
3248         avcodec_find_decoder_by_name(name);
3249     if(!codec) {
3250         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3251         ffmpeg_exit(1);
3252     }
3253     if(codec->type != type) {
3254         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3255         ffmpeg_exit(1);
3256     }
3257     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3258        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3259         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3260                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3261                 codec_string, codec->name);
3262         codec = encoder ?
3263             avcodec_find_encoder(codec->id) :
3264             avcodec_find_decoder(codec->id);
3265         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3266             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3267                     codec_string, codec->name);
3268         ffmpeg_exit(1);
3269     }
3270     return codec->id;
3271 }
3272
3273 static int opt_input_file(const char *opt, const char *filename)
3274 {
3275     AVFormatContext *ic;
3276     AVFormatParameters params, *ap = &params;
3277     AVInputFormat *file_iformat = NULL;
3278     int err, i, ret, rfps, rfps_base;
3279     int64_t timestamp;
3280
3281     if (last_asked_format) {
3282         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3283             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3284             ffmpeg_exit(1);
3285         }
3286         last_asked_format = NULL;
3287     }
3288
3289     if (!strcmp(filename, "-"))
3290         filename = "pipe:";
3291
3292     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3293                     !strcmp(filename, "/dev/stdin");
3294
3295     /* get default parameters from command line */
3296     ic = avformat_alloc_context();
3297     if (!ic) {
3298         print_error(filename, AVERROR(ENOMEM));
3299         ffmpeg_exit(1);
3300     }
3301
3302     memset(ap, 0, sizeof(*ap));
3303     ap->prealloced_context = 1;
3304     ap->sample_rate = audio_sample_rate;
3305     ap->channels = audio_channels;
3306     ap->time_base.den = frame_rate.num;
3307     ap->time_base.num = frame_rate.den;
3308     ap->width = frame_width;
3309     ap->height = frame_height;
3310     ap->pix_fmt = frame_pix_fmt;
3311    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3312     ap->channel = video_channel;
3313     ap->standard = video_standard;
3314
3315     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3316
3317     ic->video_codec_id   =
3318         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3319                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3320     ic->audio_codec_id   =
3321         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3322                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3323     ic->subtitle_codec_id=
3324         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3325                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3326     ic->flags |= AVFMT_FLAG_NONBLOCK | AVFMT_FLAG_PRIV_OPT;
3327
3328     /* open the input file with generic libav function */
3329     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3330     if(err >= 0){
3331         set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3332         err = av_demuxer_open(ic, ap);
3333         if(err < 0)
3334             avformat_free_context(ic);
3335     }
3336     if (err < 0) {
3337         print_error(filename, err);
3338         ffmpeg_exit(1);
3339     }
3340     if(opt_programid) {
3341         int i, j;
3342         int found=0;
3343         for(i=0; i<ic->nb_streams; i++){
3344             ic->streams[i]->discard= AVDISCARD_ALL;
3345         }
3346         for(i=0; i<ic->nb_programs; i++){
3347             AVProgram *p= ic->programs[i];
3348             if(p->id != opt_programid){
3349                 p->discard = AVDISCARD_ALL;
3350             }else{
3351                 found=1;
3352                 for(j=0; j<p->nb_stream_indexes; j++){
3353                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3354                 }
3355             }
3356         }
3357         if(!found){
3358             fprintf(stderr, "Specified program id not found\n");
3359             ffmpeg_exit(1);
3360         }
3361         opt_programid=0;
3362     }
3363
3364     if (loop_input) {
3365         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3366         ic->loop_input = loop_input;
3367     }
3368
3369     /* If not enough info to get the stream parameters, we decode the
3370        first frames to get it. (used in mpeg case for example) */
3371     ret = av_find_stream_info(ic);
3372     if (ret < 0 && verbose >= 0) {
3373         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3374         av_close_input_file(ic);
3375         ffmpeg_exit(1);
3376     }
3377
3378     timestamp = start_time;
3379     /* add the stream start time */
3380     if (ic->start_time != AV_NOPTS_VALUE)
3381         timestamp += ic->start_time;
3382
3383     /* if seeking requested, we execute it */
3384     if (start_time != 0) {
3385         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3386         if (ret < 0) {
3387             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3388                     filename, (double)timestamp / AV_TIME_BASE);
3389         }
3390         /* reset seek info */
3391         start_time = 0;
3392     }
3393
3394     /* update the current parameters so that they match the one of the input stream */
3395     for(i=0;i<ic->nb_streams;i++) {
3396         AVStream *st = ic->streams[i];
3397         AVCodecContext *dec = st->codec;
3398         InputStream *ist;
3399
3400         dec->thread_count = thread_count;
3401
3402         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3403         ist = &input_streams[nb_input_streams - 1];
3404         ist->st = st;
3405         ist->file_index = nb_input_files;
3406         ist->discard = 1;
3407
3408         if (i < nb_ts_scale)
3409             ist->ts_scale = ts_scale[i];
3410
3411         switch (dec->codec_type) {
3412         case AVMEDIA_TYPE_AUDIO:
3413             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3414             if(!ist->dec)
3415                 ist->dec = avcodec_find_decoder(dec->codec_id);
3416             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3417             if(audio_disable)
3418                 st->discard= AVDISCARD_ALL;
3419             break;
3420         case AVMEDIA_TYPE_VIDEO:
3421             ist->dec= avcodec_find_decoder_by_name(video_codec_name);
3422             if(!ist->dec)
3423                 ist->dec = avcodec_find_decoder(dec->codec_id);
3424             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3425             rfps      = ic->streams[i]->r_frame_rate.num;
3426             rfps_base = ic->streams[i]->r_frame_rate.den;
3427             if (dec->lowres) {
3428                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3429                 dec->height >>= dec->lowres;
3430                 dec->width  >>= dec->lowres;
3431             }
3432             if(me_threshold)
3433                 dec->debug |= FF_DEBUG_MV;
3434
3435             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3436
3437                 if (verbose >= 0)
3438                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3439                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3440
3441                     (float)rfps / rfps_base, rfps, rfps_base);
3442             }
3443
3444             if(video_disable)
3445                 st->discard= AVDISCARD_ALL;
3446             else if(video_discard)
3447                 st->discard= video_discard;
3448             break;
3449         case AVMEDIA_TYPE_DATA:
3450             break;
3451         case AVMEDIA_TYPE_SUBTITLE:
3452             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3453             if(!ist->dec)
3454                 ist->dec = avcodec_find_decoder(dec->codec_id);
3455             if(subtitle_disable)
3456                 st->discard = AVDISCARD_ALL;
3457             break;
3458         case AVMEDIA_TYPE_ATTACHMENT:
3459         case AVMEDIA_TYPE_UNKNOWN:
3460             break;
3461         default:
3462             abort();
3463         }
3464     }
3465
3466     /* dump the file content */
3467     if (verbose >= 0)
3468         av_dump_format(ic, nb_input_files, filename, 0);
3469
3470     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3471     input_files[nb_input_files - 1].ctx        = ic;
3472     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3473     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3474
3475     top_field_first = -1;
3476     video_channel = 0;
3477     frame_rate    = (AVRational){0, 0};
3478     frame_pix_fmt = PIX_FMT_NONE;
3479     frame_height = 0;
3480     frame_width  = 0;
3481     audio_sample_rate = 0;
3482     audio_channels    = 0;
3483     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3484     av_freep(&ts_scale);
3485     nb_ts_scale = 0;
3486
3487     av_freep(&video_codec_name);
3488     av_freep(&audio_codec_name);
3489     av_freep(&subtitle_codec_name);
3490     uninit_opts();
3491     init_opts();
3492     return 0;
3493 }
3494
3495 static void check_inputs(int *has_video_ptr,
3496                          int *has_audio_ptr,
3497                          int *has_subtitle_ptr,
3498                          int *has_data_ptr)
3499 {
3500     int has_video, has_audio, has_subtitle, has_data, i, j;
3501     AVFormatContext *ic;
3502
3503     has_video = 0;
3504     has_audio = 0;
3505     has_subtitle = 0;
3506     has_data = 0;
3507
3508     for(j=0;j<nb_input_files;j++) {
3509         ic = input_files[j].ctx;
3510         for(i=0;i<ic->nb_streams;i++) {
3511             AVCodecContext *enc = ic->streams[i]->codec;
3512             switch(enc->codec_type) {
3513             case AVMEDIA_TYPE_AUDIO:
3514                 has_audio = 1;
3515                 break;
3516             case AVMEDIA_TYPE_VIDEO:
3517                 has_video = 1;
3518                 break;
3519             case AVMEDIA_TYPE_SUBTITLE:
3520                 has_subtitle = 1;
3521                 break;
3522             case AVMEDIA_TYPE_DATA:
3523             case AVMEDIA_TYPE_ATTACHMENT:
3524             case AVMEDIA_TYPE_UNKNOWN:
3525                 has_data = 1;
3526                 break;
3527             default:
3528                 abort();
3529             }
3530         }
3531     }
3532     *has_video_ptr = has_video;
3533     *has_audio_ptr = has_audio;
3534     *has_subtitle_ptr = has_subtitle;
3535     *has_data_ptr = has_data;
3536 }
3537
3538 static void new_video_stream(AVFormatContext *oc, int file_idx)
3539 {
3540     AVStream *st;
3541     OutputStream *ost;
3542     AVCodecContext *video_enc;
3543     enum CodecID codec_id = CODEC_ID_NONE;
3544     AVCodec *codec= NULL;
3545
3546     if(!video_stream_copy){
3547         if (video_codec_name) {
3548             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3549                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3550             codec = avcodec_find_encoder_by_name(video_codec_name);
3551         } else {
3552             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3553             codec = avcodec_find_encoder(codec_id);
3554         }
3555     }
3556
3557     ost = new_output_stream(oc, file_idx, codec);
3558     st  = ost->st;
3559     if (!video_stream_copy) {
3560         ost->frame_aspect_ratio = frame_aspect_ratio;
3561         frame_aspect_ratio = 0;
3562 #if CONFIG_AVFILTER
3563         ost->avfilter = vfilters;
3564         vfilters = NULL;
3565 #endif
3566     }
3567
3568     ost->bitstream_filters = video_bitstream_filters;
3569     video_bitstream_filters= NULL;
3570
3571     st->codec->thread_count= thread_count;
3572
3573     video_enc = st->codec;
3574
3575     if(video_codec_tag)
3576         video_enc->codec_tag= video_codec_tag;
3577
3578     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3579         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3580         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3581     }
3582
3583     if (video_stream_copy) {
3584         st->stream_copy = 1;
3585         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3586         video_enc->sample_aspect_ratio =
3587         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3588     } else {
3589         const char *p;
3590         int i;
3591
3592         if (frame_rate.num)
3593             ost->frame_rate = frame_rate;
3594         video_enc->codec_id = codec_id;
3595         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3596
3597         video_enc->width = frame_width;
3598         video_enc->height = frame_height;
3599         video_enc->pix_fmt = frame_pix_fmt;
3600         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3601         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3602
3603         if (intra_only)
3604             video_enc->gop_size = 0;
3605         if (video_qscale || same_quality) {
3606             video_enc->flags |= CODEC_FLAG_QSCALE;
3607             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3608         }
3609
3610         if(intra_matrix)
3611             video_enc->intra_matrix = intra_matrix;
3612         if(inter_matrix)
3613             video_enc->inter_matrix = inter_matrix;
3614
3615         p= video_rc_override_string;
3616         for(i=0; p; i++){
3617             int start, end, q;
3618             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3619             if(e!=3){
3620                 fprintf(stderr, "error parsing rc_override\n");
3621                 ffmpeg_exit(1);
3622             }
3623             video_enc->rc_override=
3624                 av_realloc(video_enc->rc_override,
3625                            sizeof(RcOverride)*(i+1));
3626             video_enc->rc_override[i].start_frame= start;