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/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavformat/os_support.h"
47
48 #include "libavformat/ffm.h" // not public API
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avcodec.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/avfiltergraph.h"
54 # include "libavfilter/vsink_buffer.h"
55 # include "libavfilter/vsrc_buffer.h"
56 #endif
57
58 #if HAVE_SYS_RESOURCE_H
59 #include <sys/types.h>
60 #include <sys/time.h>
61 #include <sys/resource.h>
62 #elif HAVE_GETPROCESSTIMES
63 #include <windows.h>
64 #endif
65 #if HAVE_GETPROCESSMEMORYINFO
66 #include <windows.h>
67 #include <psapi.h>
68 #endif
69
70 #if HAVE_SYS_SELECT_H
71 #include <sys/select.h>
72 #endif
73
74 #if HAVE_TERMIOS_H
75 #include <fcntl.h>
76 #include <sys/ioctl.h>
77 #include <sys/time.h>
78 #include <termios.h>
79 #elif HAVE_KBHIT
80 #include <conio.h>
81 #endif
82 #include <time.h>
83
84 #include "cmdutils.h"
85
86 #include "libavutil/avassert.h"
87
88 const char program_name[] = "ffmpeg";
89 const int program_birth_year = 2000;
90
91 /* select an input stream for an output stream */
92 typedef struct AVStreamMap {
93     int file_index;
94     int stream_index;
95     int sync_file_index;
96     int sync_stream_index;
97 } AVStreamMap;
98
99 /**
100  * select an input file for an output file
101  */
102 typedef struct AVMetaDataMap {
103     int  file;      //< file index
104     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
105     int  index;     //< stream/chapter/program number
106 } AVMetaDataMap;
107
108 typedef struct AVChapterMap {
109     int in_file;
110     int out_file;
111 } AVChapterMap;
112
113 static const OptionDef options[];
114
115 #define MAX_FILES 100
116 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
117
118 static const char *last_asked_format = NULL;
119 static int64_t input_files_ts_offset[MAX_FILES];
120 static double *input_files_ts_scale[MAX_FILES] = {NULL};
121 static AVCodec **input_codecs = NULL;
122 static int nb_input_codecs = 0;
123 static int nb_input_files_ts_scale[MAX_FILES] = {0};
124
125 static AVFormatContext *output_files[MAX_FILES];
126 static int nb_output_files = 0;
127
128 static AVStreamMap *stream_maps = NULL;
129 static int nb_stream_maps;
130
131 /* first item specifies output metadata, second is input */
132 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
133 static int nb_meta_data_maps;
134 static int metadata_global_autocopy   = 1;
135 static int metadata_streams_autocopy  = 1;
136 static int metadata_chapters_autocopy = 1;
137
138 static AVChapterMap *chapter_maps = NULL;
139 static int nb_chapter_maps;
140
141 /* indexed by output file stream index */
142 static int *streamid_map = NULL;
143 static int nb_streamid_map = 0;
144
145 static int frame_width  = 0;
146 static int frame_height = 0;
147 static float frame_aspect_ratio = 0;
148 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
149 static int frame_bits_per_raw_sample = 0;
150 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
151 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
152 static AVRational frame_rate;
153 static float video_qscale = 0;
154 static uint16_t *intra_matrix = NULL;
155 static uint16_t *inter_matrix = NULL;
156 static const char *video_rc_override_string=NULL;
157 static int video_disable = 0;
158 static int video_discard = 0;
159 static char *video_codec_name = NULL;
160 static unsigned int video_codec_tag = 0;
161 static char *video_language = NULL;
162 static int same_quality = 0;
163 static int do_deinterlace = 0;
164 static int top_field_first = -1;
165 static int me_threshold = 0;
166 static int intra_dc_precision = 8;
167 static int loop_input = 0;
168 static int loop_output = AVFMT_NOOUTPUTLOOP;
169 static int qp_hist = 0;
170 #if CONFIG_AVFILTER
171 static char *vfilters = NULL;
172 #endif
173
174 static int intra_only = 0;
175 static int audio_sample_rate = 0;
176 static int64_t channel_layout = 0;
177 #define QSCALE_NONE -99999
178 static float audio_qscale = QSCALE_NONE;
179 static int audio_disable = 0;
180 static int audio_channels = 0;
181 static char  *audio_codec_name = NULL;
182 static unsigned int audio_codec_tag = 0;
183 static char *audio_language = NULL;
184
185 static int subtitle_disable = 0;
186 static char *subtitle_codec_name = NULL;
187 static char *subtitle_language = NULL;
188 static unsigned int subtitle_codec_tag = 0;
189
190 static int data_disable = 0;
191 static char *data_codec_name = NULL;
192 static unsigned int data_codec_tag = 0;
193
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
196
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVDictionary *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static const char *pass_logfilename_prefix;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int data_stream_copy = 0;
213 static int video_sync_method= -1;
214 static int audio_sync_method= 0;
215 static float audio_drift_threshold= 0.1;
216 static int copy_ts= 0;
217 static int copy_tb= 0;
218 static int opt_shortest = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int run_as_daemon  = 0;
235 static int thread_count= 1;
236 static int q_pressed = 0;
237 static int64_t video_size = 0;
238 static int64_t audio_size = 0;
239 static int64_t extra_size = 0;
240 static int nb_frames_dup = 0;
241 static int nb_frames_drop = 0;
242 static int input_sync;
243 static uint64_t limit_filesize = 0;
244 static int force_fps = 0;
245 static char *forced_key_frames = NULL;
246
247 static float dts_delta_threshold = 10;
248
249 static int64_t timer_start;
250
251 static uint8_t *audio_buf;
252 static uint8_t *audio_out;
253 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
254
255 static short *samples;
256
257 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
260
261 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
262
263 struct AVInputStream;
264
265 typedef struct AVOutputStream {
266     int file_index;          /* file index */
267     int index;               /* stream index in the output file */
268     int source_index;        /* AVInputStream index */
269     AVStream *st;            /* stream in the output file */
270     int encoding_needed;     /* true if encoding needed for this stream */
271     int frame_number;
272     /* input pts and corresponding output pts
273        for A/V sync */
274     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
275     struct AVInputStream *sync_ist; /* input stream to sync against */
276     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
277     AVBitStreamFilterContext *bitstream_filters;
278     AVCodec *enc;
279
280     /* video only */
281     int video_resample;
282     AVFrame resample_frame;              /* temporary frame for image resampling */
283     struct SwsContext *img_resample_ctx; /* for image resampling */
284     int resample_height;
285     int resample_width;
286     int resample_pix_fmt;
287     AVRational frame_rate;
288
289     float frame_aspect_ratio;
290
291     /* forced key frames */
292     int64_t *forced_kf_pts;
293     int forced_kf_count;
294     int forced_kf_index;
295
296     /* audio only */
297     int audio_resample;
298     ReSampleContext *resample; /* for audio resampling */
299     int resample_sample_fmt;
300     int resample_channels;
301     int resample_sample_rate;
302     int reformat_pair;
303     AVAudioConvert *reformat_ctx;
304     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
305     FILE *logfile;
306
307 #if CONFIG_AVFILTER
308     AVFilterContext *output_video_filter;
309     AVFilterContext *input_video_filter;
310     AVFilterBufferRef *picref;
311     char *avfilter;
312     AVFilterGraph *graph;
313 #endif
314
315    int sws_flags;
316 } AVOutputStream;
317
318 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
319 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
320
321 typedef struct AVInputStream {
322     int file_index;
323     AVStream *st;
324     int discard;             /* true if stream data should be discarded */
325     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
326     int64_t sample_index;      /* current sample */
327
328     int64_t       start;     /* time when read started */
329     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
330                                 is not defined */
331     int64_t       pts;       /* current pts */
332     int is_start;            /* is 1 at the start and after a discontinuity */
333     int showed_multi_packet_warning;
334     int is_past_recording_time;
335 #if CONFIG_AVFILTER
336     AVFrame *filter_frame;
337     int has_filter_frame;
338 #endif
339 } AVInputStream;
340
341 typedef struct AVInputFile {
342     AVFormatContext *ctx;
343     int eof_reached;      /* true if eof reached */
344     int ist_index;        /* index of first stream in ist_table */
345     int buffer_size;      /* current total buffer size */
346 } AVInputFile;
347
348 #if HAVE_TERMIOS_H
349
350 /* init terminal so that we can grab keys */
351 static struct termios oldtty;
352 #endif
353
354 static AVInputStream *input_streams = NULL;
355 static int         nb_input_streams = 0;
356 static AVInputFile   *input_files   = NULL;
357 static int         nb_input_files   = 0;
358
359 #if CONFIG_AVFILTER
360
361 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
362 {
363     AVFilterContext *last_filter, *filter;
364     /** filter graph containing all filters including input & output */
365     AVCodecContext *codec = ost->st->codec;
366     AVCodecContext *icodec = ist->st->codec;
367     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
368     AVRational sample_aspect_ratio;
369     char args[255];
370     int ret;
371
372     ost->graph = avfilter_graph_alloc();
373
374     if (ist->st->sample_aspect_ratio.num){
375         sample_aspect_ratio = ist->st->sample_aspect_ratio;
376     }else
377         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
378
379     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
380              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
381              sample_aspect_ratio.num, sample_aspect_ratio.den);
382
383     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
384                                        "src", args, NULL, ost->graph);
385     if (ret < 0)
386         return ret;
387     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
388                                        "out", NULL, pix_fmts, ost->graph);
389     if (ret < 0)
390         return ret;
391     last_filter = ost->input_video_filter;
392
393     if (codec->width  != icodec->width || codec->height != icodec->height) {
394         snprintf(args, 255, "%d:%d:flags=0x%X",
395                  codec->width,
396                  codec->height,
397                  ost->sws_flags);
398         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
399                                                 NULL, args, NULL, ost->graph)) < 0)
400             return ret;
401         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
402             return ret;
403         last_filter = filter;
404     }
405
406     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
407     ost->graph->scale_sws_opts = av_strdup(args);
408
409     if (ost->avfilter) {
410         AVFilterInOut *outputs = avfilter_inout_alloc();
411         AVFilterInOut *inputs  = avfilter_inout_alloc();
412
413         outputs->name    = av_strdup("in");
414         outputs->filter_ctx = last_filter;
415         outputs->pad_idx = 0;
416         outputs->next    = NULL;
417
418         inputs->name    = av_strdup("out");
419         inputs->filter_ctx = ost->output_video_filter;
420         inputs->pad_idx = 0;
421         inputs->next    = NULL;
422
423         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
424             return ret;
425         av_freep(&ost->avfilter);
426     } else {
427         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
428             return ret;
429     }
430
431     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
432         return ret;
433
434     codec->width  = ost->output_video_filter->inputs[0]->w;
435     codec->height = ost->output_video_filter->inputs[0]->h;
436     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
437         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
438         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
439         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
440
441     return 0;
442 }
443 #endif /* CONFIG_AVFILTER */
444
445 static void term_exit(void)
446 {
447     av_log(NULL, AV_LOG_QUIET, "%s", "");
448 #if HAVE_TERMIOS_H
449     if(!run_as_daemon)
450         tcsetattr (0, TCSANOW, &oldtty);
451 #endif
452 }
453
454 static volatile int received_sigterm = 0;
455
456 static void
457 sigterm_handler(int sig)
458 {
459     received_sigterm = sig;
460     q_pressed++;
461     term_exit();
462 }
463
464 static void term_init(void)
465 {
466 #if HAVE_TERMIOS_H
467     if(!run_as_daemon){
468     struct termios tty;
469
470     tcgetattr (0, &tty);
471     oldtty = tty;
472     atexit(term_exit);
473
474     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
475                           |INLCR|IGNCR|ICRNL|IXON);
476     tty.c_oflag |= OPOST;
477     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
478     tty.c_cflag &= ~(CSIZE|PARENB);
479     tty.c_cflag |= CS8;
480     tty.c_cc[VMIN] = 1;
481     tty.c_cc[VTIME] = 0;
482
483     tcsetattr (0, TCSANOW, &tty);
484     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
485     }
486 #endif
487
488     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
489     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
490 #ifdef SIGXCPU
491     signal(SIGXCPU, sigterm_handler);
492 #endif
493 }
494
495 /* read a key without blocking */
496 static int read_key(void)
497 {
498 #if HAVE_TERMIOS_H
499     int n = 1;
500     unsigned char ch;
501     struct timeval tv;
502     fd_set rfds;
503
504     if(run_as_daemon)
505         return -1;
506
507     FD_ZERO(&rfds);
508     FD_SET(0, &rfds);
509     tv.tv_sec = 0;
510     tv.tv_usec = 0;
511     n = select(1, &rfds, NULL, NULL, &tv);
512     if (n > 0) {
513         n = read(0, &ch, 1);
514         if (n == 1)
515             return ch;
516
517         return n;
518     }
519 #elif HAVE_KBHIT
520     if(kbhit())
521         return(getch());
522 #endif
523     return -1;
524 }
525
526 static int decode_interrupt_cb(void)
527 {
528     q_pressed += read_key() == 'q';
529     return q_pressed > 1;
530 }
531
532 static int ffmpeg_exit(int ret)
533 {
534     int i;
535
536     /* close files */
537     for(i=0;i<nb_output_files;i++) {
538         AVFormatContext *s = output_files[i];
539         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
540             avio_close(s->pb);
541         avformat_free_context(s);
542         av_free(output_streams_for_file[i]);
543     }
544     for(i=0;i<nb_input_files;i++) {
545         av_close_input_file(input_files[i].ctx);
546         av_free(input_files_ts_scale[i]);
547     }
548
549     av_free(intra_matrix);
550     av_free(inter_matrix);
551
552     if (vstats_file)
553         fclose(vstats_file);
554     av_free(vstats_filename);
555
556     av_free(streamid_map);
557     av_free(input_codecs);
558     av_free(stream_maps);
559     av_free(meta_data_maps);
560
561     av_freep(&input_streams);
562     av_freep(&input_files);
563
564     av_free(video_codec_name);
565     av_free(audio_codec_name);
566     av_free(subtitle_codec_name);
567     av_free(data_codec_name);
568
569     av_free(video_standard);
570
571     uninit_opts();
572     av_free(audio_buf);
573     av_free(audio_out);
574     allocated_audio_buf_size= allocated_audio_out_size= 0;
575     av_free(samples);
576
577 #if CONFIG_AVFILTER
578     avfilter_uninit();
579 #endif
580
581     if (received_sigterm) {
582         fprintf(stderr,
583             "Received signal %d: terminating.\n",
584             (int) received_sigterm);
585         exit (255);
586     }
587
588     exit(ret); /* not all OS-es handle main() return value */
589     return ret;
590 }
591
592 /* similar to ff_dynarray_add() and av_fast_realloc() */
593 static void *grow_array(void *array, int elem_size, int *size, int new_size)
594 {
595     if (new_size >= INT_MAX / elem_size) {
596         fprintf(stderr, "Array too big.\n");
597         ffmpeg_exit(1);
598     }
599     if (*size < new_size) {
600         uint8_t *tmp = av_realloc(array, new_size*elem_size);
601         if (!tmp) {
602             fprintf(stderr, "Could not alloc buffer.\n");
603             ffmpeg_exit(1);
604         }
605         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
606         *size = new_size;
607         return tmp;
608     }
609     return array;
610 }
611
612 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
613 {
614     if(codec && codec->sample_fmts){
615         const enum AVSampleFormat *p= codec->sample_fmts;
616         for(; *p!=-1; p++){
617             if(*p == st->codec->sample_fmt)
618                 break;
619         }
620         if (*p == -1) {
621             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
622                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
623             av_log(NULL, AV_LOG_WARNING,
624                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
625                    av_get_sample_fmt_name(st->codec->sample_fmt),
626                    codec->name,
627                    av_get_sample_fmt_name(codec->sample_fmts[0]));
628             st->codec->sample_fmt = codec->sample_fmts[0];
629         }
630     }
631 }
632
633 static void choose_sample_rate(AVStream *st, AVCodec *codec)
634 {
635     if(codec && codec->supported_samplerates){
636         const int *p= codec->supported_samplerates;
637         int best=0;
638         int best_dist=INT_MAX;
639         for(; *p; p++){
640             int dist= abs(st->codec->sample_rate - *p);
641             if(dist < best_dist){
642                 best_dist= dist;
643                 best= *p;
644             }
645         }
646         if(best_dist){
647             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
648         }
649         st->codec->sample_rate= best;
650     }
651 }
652
653 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
654 {
655     if(codec && codec->pix_fmts){
656         const enum PixelFormat *p= codec->pix_fmts;
657         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
658             if(st->codec->codec_id==CODEC_ID_MJPEG){
659                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
660             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
661                 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};
662             }
663         }
664         for(; *p!=-1; p++){
665             if(*p == st->codec->pix_fmt)
666                 break;
667         }
668         if (*p == -1) {
669             if(st->codec->pix_fmt != PIX_FMT_NONE)
670                 av_log(NULL, AV_LOG_WARNING,
671                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
672                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
673                         codec->name,
674                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
675             st->codec->pix_fmt = codec->pix_fmts[0];
676         }
677     }
678 }
679
680 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
681 {
682     int idx = oc->nb_streams - 1;
683     AVOutputStream *ost;
684
685     output_streams_for_file[file_idx] =
686         grow_array(output_streams_for_file[file_idx],
687                    sizeof(*output_streams_for_file[file_idx]),
688                    &nb_output_streams_for_file[file_idx],
689                    oc->nb_streams);
690     ost = output_streams_for_file[file_idx][idx] =
691         av_mallocz(sizeof(AVOutputStream));
692     if (!ost) {
693         fprintf(stderr, "Could not alloc output stream\n");
694         ffmpeg_exit(1);
695     }
696     ost->file_index = file_idx;
697     ost->index = idx;
698
699     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
700     return ost;
701 }
702
703 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
704 {
705     int i, err;
706     AVFormatContext *ic;
707     int nopts = 0;
708
709     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
710     if (err < 0)
711         return err;
712     /* copy stream format */
713     s->nb_streams = 0;
714     s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
715     for(i=0;i<ic->nb_streams;i++) {
716         AVStream *st;
717         AVCodec *codec;
718
719         s->nb_streams++;
720
721         // FIXME: a more elegant solution is needed
722         st = av_mallocz(sizeof(AVStream));
723         memcpy(st, ic->streams[i], sizeof(AVStream));
724         st->info = av_malloc(sizeof(*st->info));
725         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
726         st->codec = avcodec_alloc_context();
727         if (!st->codec) {
728             print_error(filename, AVERROR(ENOMEM));
729             ffmpeg_exit(1);
730         }
731         avcodec_copy_context(st->codec, ic->streams[i]->codec);
732         s->streams[i] = st;
733
734         codec = avcodec_find_encoder(st->codec->codec_id);
735         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
736             if (audio_stream_copy) {
737                 st->stream_copy = 1;
738             } else
739                 choose_sample_fmt(st, codec);
740         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
741             if (video_stream_copy) {
742                 st->stream_copy = 1;
743             } else
744                 choose_pixel_fmt(st, codec);
745         }
746
747         if(st->codec->flags & CODEC_FLAG_BITEXACT)
748             nopts = 1;
749
750         new_output_stream(s, nb_output_files);
751     }
752
753     if (!nopts)
754         s->timestamp = av_gettime();
755
756     av_close_input_file(ic);
757     return 0;
758 }
759
760 static double
761 get_sync_ipts(const AVOutputStream *ost)
762 {
763     const AVInputStream *ist = ost->sync_ist;
764     return (double)(ist->pts - start_time)/AV_TIME_BASE;
765 }
766
767 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
768     int ret;
769
770     while(bsfc){
771         AVPacket new_pkt= *pkt;
772         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
773                                           &new_pkt.data, &new_pkt.size,
774                                           pkt->data, pkt->size,
775                                           pkt->flags & AV_PKT_FLAG_KEY);
776         if(a>0){
777             av_free_packet(pkt);
778             new_pkt.destruct= av_destruct_packet;
779         } else if(a<0){
780             fprintf(stderr, "%s failed for stream %d, codec %s",
781                     bsfc->filter->name, pkt->stream_index,
782                     avctx->codec ? avctx->codec->name : "copy");
783             print_error("", a);
784             if (exit_on_error)
785                 ffmpeg_exit(1);
786         }
787         *pkt= new_pkt;
788
789         bsfc= bsfc->next;
790     }
791
792     ret= av_interleaved_write_frame(s, pkt);
793     if(ret < 0){
794         print_error("av_interleaved_write_frame()", ret);
795         ffmpeg_exit(1);
796     }
797 }
798
799 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
800
801 static void do_audio_out(AVFormatContext *s,
802                          AVOutputStream *ost,
803                          AVInputStream *ist,
804                          unsigned char *buf, int size)
805 {
806     uint8_t *buftmp;
807     int64_t audio_out_size, audio_buf_size;
808     int64_t allocated_for_size= size;
809
810     int size_out, frame_bytes, ret, resample_changed;
811     AVCodecContext *enc= ost->st->codec;
812     AVCodecContext *dec= ist->st->codec;
813     int osize = av_get_bytes_per_sample(enc->sample_fmt);
814     int isize = av_get_bytes_per_sample(dec->sample_fmt);
815     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
816
817 need_realloc:
818     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
819     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
820     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
821     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
822     audio_buf_size*= osize*enc->channels;
823
824     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
825     if(coded_bps > 8*osize)
826         audio_out_size= audio_out_size * coded_bps / (8*osize);
827     audio_out_size += FF_MIN_BUFFER_SIZE;
828
829     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
830         fprintf(stderr, "Buffer sizes too large\n");
831         ffmpeg_exit(1);
832     }
833
834     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
835     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
836     if (!audio_buf || !audio_out){
837         fprintf(stderr, "Out of memory in do_audio_out\n");
838         ffmpeg_exit(1);
839     }
840
841     if (enc->channels != dec->channels)
842         ost->audio_resample = 1;
843
844     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
845                        ost->resample_channels    != dec->channels   ||
846                        ost->resample_sample_rate != dec->sample_rate;
847
848     if ((ost->audio_resample && !ost->resample) || resample_changed) {
849         if (resample_changed) {
850             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",
851                    ist->file_index, ist->st->index,
852                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
853                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
854             ost->resample_sample_fmt  = dec->sample_fmt;
855             ost->resample_channels    = dec->channels;
856             ost->resample_sample_rate = dec->sample_rate;
857             if (ost->resample)
858                 audio_resample_close(ost->resample);
859         }
860         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
861         if (audio_sync_method <= 1 &&
862             ost->resample_sample_fmt  == enc->sample_fmt &&
863             ost->resample_channels    == enc->channels   &&
864             ost->resample_sample_rate == enc->sample_rate) {
865             ost->resample = NULL;
866             ost->audio_resample = 0;
867         } else {
868             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
869                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
870             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
871                                                    enc->sample_rate, dec->sample_rate,
872                                                    enc->sample_fmt,  dec->sample_fmt,
873                                                    16, 10, 0, 0.8);
874             if (!ost->resample) {
875                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
876                         dec->channels, dec->sample_rate,
877                         enc->channels, enc->sample_rate);
878                 ffmpeg_exit(1);
879             }
880         }
881     }
882
883 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
884     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
885         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
886         if (ost->reformat_ctx)
887             av_audio_convert_free(ost->reformat_ctx);
888         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
889                                                    dec->sample_fmt, 1, NULL, 0);
890         if (!ost->reformat_ctx) {
891             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
892                 av_get_sample_fmt_name(dec->sample_fmt),
893                 av_get_sample_fmt_name(enc->sample_fmt));
894             ffmpeg_exit(1);
895         }
896         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
897     }
898
899     if(audio_sync_method){
900         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
901                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
902         double idelta= delta*dec->sample_rate / enc->sample_rate;
903         int byte_delta= ((int)idelta)*2*dec->channels;
904
905         //FIXME resample delay
906         if(fabs(delta) > 50){
907             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
908                 if(byte_delta < 0){
909                     byte_delta= FFMAX(byte_delta, -size);
910                     size += byte_delta;
911                     buf  -= byte_delta;
912                     if(verbose > 2)
913                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
914                     if(!size)
915                         return;
916                     ist->is_start=0;
917                 }else{
918                     static uint8_t *input_tmp= NULL;
919                     input_tmp= av_realloc(input_tmp, byte_delta + size);
920
921                     if(byte_delta > allocated_for_size - size){
922                         allocated_for_size= byte_delta + (int64_t)size;
923                         goto need_realloc;
924                     }
925                     ist->is_start=0;
926
927                     memset(input_tmp, 0, byte_delta);
928                     memcpy(input_tmp + byte_delta, buf, size);
929                     buf= input_tmp;
930                     size += byte_delta;
931                     if(verbose > 2)
932                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
933                 }
934             }else if(audio_sync_method>1){
935                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
936                 av_assert0(ost->audio_resample);
937                 if(verbose > 2)
938                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
939 //                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));
940                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
941             }
942         }
943     }else
944         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
945                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
946
947     if (ost->audio_resample) {
948         buftmp = audio_buf;
949         size_out = audio_resample(ost->resample,
950                                   (short *)buftmp, (short *)buf,
951                                   size / (dec->channels * isize));
952         size_out = size_out * enc->channels * osize;
953     } else {
954         buftmp = buf;
955         size_out = size;
956     }
957
958     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
959         const void *ibuf[6]= {buftmp};
960         void *obuf[6]= {audio_buf};
961         int istride[6]= {isize};
962         int ostride[6]= {osize};
963         int len= size_out/istride[0];
964         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
965             printf("av_audio_convert() failed\n");
966             if (exit_on_error)
967                 ffmpeg_exit(1);
968             return;
969         }
970         buftmp = audio_buf;
971         size_out = len*osize;
972     }
973
974     /* now encode as many frames as possible */
975     if (enc->frame_size > 1) {
976         /* output resampled raw samples */
977         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
978             fprintf(stderr, "av_fifo_realloc2() failed\n");
979             ffmpeg_exit(1);
980         }
981         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
982
983         frame_bytes = enc->frame_size * osize * enc->channels;
984
985         while (av_fifo_size(ost->fifo) >= frame_bytes) {
986             AVPacket pkt;
987             av_init_packet(&pkt);
988
989             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
990
991             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
992
993             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
994                                        (short *)audio_buf);
995             if (ret < 0) {
996                 fprintf(stderr, "Audio encoding failed\n");
997                 ffmpeg_exit(1);
998             }
999             audio_size += ret;
1000             pkt.stream_index= ost->index;
1001             pkt.data= audio_out;
1002             pkt.size= ret;
1003             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1004                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1005             pkt.flags |= AV_PKT_FLAG_KEY;
1006             write_frame(s, &pkt, enc, ost->bitstream_filters);
1007
1008             ost->sync_opts += enc->frame_size;
1009         }
1010     } else {
1011         AVPacket pkt;
1012         av_init_packet(&pkt);
1013
1014         ost->sync_opts += size_out / (osize * enc->channels);
1015
1016         /* output a pcm frame */
1017         /* determine the size of the coded buffer */
1018         size_out /= osize;
1019         if (coded_bps)
1020             size_out = size_out*coded_bps/8;
1021
1022         if(size_out > audio_out_size){
1023             fprintf(stderr, "Internal error, buffer size too small\n");
1024             ffmpeg_exit(1);
1025         }
1026
1027         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1028         ret = avcodec_encode_audio(enc, audio_out, size_out,
1029                                    (short *)buftmp);
1030         if (ret < 0) {
1031             fprintf(stderr, "Audio encoding failed\n");
1032             ffmpeg_exit(1);
1033         }
1034         audio_size += ret;
1035         pkt.stream_index= ost->index;
1036         pkt.data= audio_out;
1037         pkt.size= ret;
1038         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1039             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1040         pkt.flags |= AV_PKT_FLAG_KEY;
1041         write_frame(s, &pkt, enc, ost->bitstream_filters);
1042     }
1043 }
1044
1045 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1046 {
1047     AVCodecContext *dec;
1048     AVPicture *picture2;
1049     AVPicture picture_tmp;
1050     uint8_t *buf = 0;
1051
1052     dec = ist->st->codec;
1053
1054     /* deinterlace : must be done before any resize */
1055     if (do_deinterlace) {
1056         int size;
1057
1058         /* create temporary picture */
1059         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1060         buf = av_malloc(size);
1061         if (!buf)
1062             return;
1063
1064         picture2 = &picture_tmp;
1065         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1066
1067         if(avpicture_deinterlace(picture2, picture,
1068                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1069             /* if error, do not deinterlace */
1070             fprintf(stderr, "Deinterlacing failed\n");
1071             av_free(buf);
1072             buf = NULL;
1073             picture2 = picture;
1074         }
1075     } else {
1076         picture2 = picture;
1077     }
1078
1079     if (picture != picture2)
1080         *picture = *picture2;
1081     *bufp = buf;
1082 }
1083
1084 /* we begin to correct av delay at this threshold */
1085 #define AV_DELAY_MAX 0.100
1086
1087 static void do_subtitle_out(AVFormatContext *s,
1088                             AVOutputStream *ost,
1089                             AVInputStream *ist,
1090                             AVSubtitle *sub,
1091                             int64_t pts)
1092 {
1093     static uint8_t *subtitle_out = NULL;
1094     int subtitle_out_max_size = 1024 * 1024;
1095     int subtitle_out_size, nb, i;
1096     AVCodecContext *enc;
1097     AVPacket pkt;
1098
1099     if (pts == AV_NOPTS_VALUE) {
1100         fprintf(stderr, "Subtitle packets must have a pts\n");
1101         if (exit_on_error)
1102             ffmpeg_exit(1);
1103         return;
1104     }
1105
1106     enc = ost->st->codec;
1107
1108     if (!subtitle_out) {
1109         subtitle_out = av_malloc(subtitle_out_max_size);
1110     }
1111
1112     /* Note: DVB subtitle need one packet to draw them and one other
1113        packet to clear them */
1114     /* XXX: signal it in the codec context ? */
1115     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1116         nb = 2;
1117     else
1118         nb = 1;
1119
1120     for(i = 0; i < nb; i++) {
1121         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1122         // start_display_time is required to be 0
1123         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1124         sub->end_display_time -= sub->start_display_time;
1125         sub->start_display_time = 0;
1126         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1127                                                     subtitle_out_max_size, sub);
1128         if (subtitle_out_size < 0) {
1129             fprintf(stderr, "Subtitle encoding failed\n");
1130             ffmpeg_exit(1);
1131         }
1132
1133         av_init_packet(&pkt);
1134         pkt.stream_index = ost->index;
1135         pkt.data = subtitle_out;
1136         pkt.size = subtitle_out_size;
1137         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1138         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1139             /* XXX: the pts correction is handled here. Maybe handling
1140                it in the codec would be better */
1141             if (i == 0)
1142                 pkt.pts += 90 * sub->start_display_time;
1143             else
1144                 pkt.pts += 90 * sub->end_display_time;
1145         }
1146         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1147     }
1148 }
1149
1150 static int bit_buffer_size= 1024*256;
1151 static uint8_t *bit_buffer= NULL;
1152
1153 static void do_video_out(AVFormatContext *s,
1154                          AVOutputStream *ost,
1155                          AVInputStream *ist,
1156                          AVFrame *in_picture,
1157                          int *frame_size)
1158 {
1159     int nb_frames, i, ret, av_unused resample_changed;
1160     AVFrame *final_picture, *formatted_picture;
1161     AVCodecContext *enc, *dec;
1162     double sync_ipts;
1163
1164     enc = ost->st->codec;
1165     dec = ist->st->codec;
1166
1167     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1168
1169     /* by default, we output a single frame */
1170     nb_frames = 1;
1171
1172     *frame_size = 0;
1173
1174     if(video_sync_method){
1175         double vdelta = sync_ipts - ost->sync_opts;
1176         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1177         if (vdelta < -1.1)
1178             nb_frames = 0;
1179         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1180             if(vdelta<=-0.6){
1181                 nb_frames=0;
1182             }else if(vdelta>0.6)
1183                 ost->sync_opts= lrintf(sync_ipts);
1184         }else if (vdelta > 1.1)
1185             nb_frames = lrintf(vdelta);
1186 //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);
1187         if (nb_frames == 0){
1188             ++nb_frames_drop;
1189             if (verbose>2)
1190                 fprintf(stderr, "*** drop!\n");
1191         }else if (nb_frames > 1) {
1192             nb_frames_dup += nb_frames - 1;
1193             if (verbose>2)
1194                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1195         }
1196     }else
1197         ost->sync_opts= lrintf(sync_ipts);
1198
1199     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1200     if (nb_frames <= 0)
1201         return;
1202
1203     formatted_picture = in_picture;
1204     final_picture = formatted_picture;
1205
1206 #if !CONFIG_AVFILTER
1207     resample_changed = ost->resample_width   != dec->width  ||
1208                        ost->resample_height  != dec->height ||
1209                        ost->resample_pix_fmt != dec->pix_fmt;
1210
1211     if (resample_changed) {
1212         av_log(NULL, AV_LOG_INFO,
1213                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1214                ist->file_index, ist->st->index,
1215                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1216                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1217         ost->resample_width   = dec->width;
1218         ost->resample_height  = dec->height;
1219         ost->resample_pix_fmt = dec->pix_fmt;
1220     }
1221
1222     ost->video_resample = dec->width   != enc->width  ||
1223                           dec->height  != enc->height ||
1224                           dec->pix_fmt != enc->pix_fmt;
1225
1226     if (ost->video_resample) {
1227         final_picture = &ost->resample_frame;
1228         if (!ost->img_resample_ctx || resample_changed) {
1229             /* initialize the destination picture */
1230             if (!ost->resample_frame.data[0]) {
1231                 avcodec_get_frame_defaults(&ost->resample_frame);
1232                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1233                                     enc->width, enc->height)) {
1234                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1235                     ffmpeg_exit(1);
1236                 }
1237             }
1238             /* initialize a new scaler context */
1239             sws_freeContext(ost->img_resample_ctx);
1240             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1241                                                    enc->width, enc->height, enc->pix_fmt,
1242                                                    ost->sws_flags, NULL, NULL, NULL);
1243             if (ost->img_resample_ctx == NULL) {
1244                 fprintf(stderr, "Cannot get resampling context\n");
1245                 ffmpeg_exit(1);
1246             }
1247         }
1248         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1249               0, ost->resample_height, final_picture->data, final_picture->linesize);
1250     }
1251 #endif
1252
1253     /* duplicates frame if needed */
1254     for(i=0;i<nb_frames;i++) {
1255         AVPacket pkt;
1256         av_init_packet(&pkt);
1257         pkt.stream_index= ost->index;
1258
1259         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1260             /* raw pictures are written as AVPicture structure to
1261                avoid any copies. We support temorarily the older
1262                method. */
1263             AVFrame* old_frame = enc->coded_frame;
1264             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1265             pkt.data= (uint8_t *)final_picture;
1266             pkt.size=  sizeof(AVPicture);
1267             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1268             pkt.flags |= AV_PKT_FLAG_KEY;
1269
1270             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1271             enc->coded_frame = old_frame;
1272         } else {
1273             AVFrame big_picture;
1274
1275             big_picture= *final_picture;
1276             /* better than nothing: use input picture interlaced
1277                settings */
1278             big_picture.interlaced_frame = in_picture->interlaced_frame;
1279             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1280                 if(top_field_first == -1)
1281                     big_picture.top_field_first = in_picture->top_field_first;
1282                 else
1283                     big_picture.top_field_first = top_field_first;
1284             }
1285
1286             /* handles sameq here. This is not correct because it may
1287                not be a global option */
1288             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1289             if(!me_threshold)
1290                 big_picture.pict_type = 0;
1291 //            big_picture.pts = AV_NOPTS_VALUE;
1292             big_picture.pts= ost->sync_opts;
1293 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1294 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1295             if (ost->forced_kf_index < ost->forced_kf_count &&
1296                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1297                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1298                 ost->forced_kf_index++;
1299             }
1300             ret = avcodec_encode_video(enc,
1301                                        bit_buffer, bit_buffer_size,
1302                                        &big_picture);
1303             if (ret < 0) {
1304                 fprintf(stderr, "Video encoding failed\n");
1305                 ffmpeg_exit(1);
1306             }
1307
1308             if(ret>0){
1309                 pkt.data= bit_buffer;
1310                 pkt.size= ret;
1311                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1312                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1313 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1314    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1315    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1316
1317                 if(enc->coded_frame->key_frame)
1318                     pkt.flags |= AV_PKT_FLAG_KEY;
1319                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1320                 *frame_size = ret;
1321                 video_size += ret;
1322                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1323                 //        enc->frame_number-1, ret, enc->pict_type);
1324                 /* if two pass, output log */
1325                 if (ost->logfile && enc->stats_out) {
1326                     fprintf(ost->logfile, "%s", enc->stats_out);
1327                 }
1328             }
1329         }
1330         ost->sync_opts++;
1331         ost->frame_number++;
1332     }
1333 }
1334
1335 static double psnr(double d){
1336     return -10.0*log(d)/log(10.0);
1337 }
1338
1339 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1340                            int frame_size)
1341 {
1342     AVCodecContext *enc;
1343     int frame_number;
1344     double ti1, bitrate, avg_bitrate;
1345
1346     /* this is executed just the first time do_video_stats is called */
1347     if (!vstats_file) {
1348         vstats_file = fopen(vstats_filename, "w");
1349         if (!vstats_file) {
1350             perror("fopen");
1351             ffmpeg_exit(1);
1352         }
1353     }
1354
1355     enc = ost->st->codec;
1356     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1357         frame_number = ost->frame_number;
1358         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1359         if (enc->flags&CODEC_FLAG_PSNR)
1360             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1361
1362         fprintf(vstats_file,"f_size= %6d ", frame_size);
1363         /* compute pts value */
1364         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1365         if (ti1 < 0.01)
1366             ti1 = 0.01;
1367
1368         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1369         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1370         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1371             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1372         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1373     }
1374 }
1375
1376 static void print_report(AVFormatContext **output_files,
1377                          AVOutputStream **ost_table, int nb_ostreams,
1378                          int is_last_report)
1379 {
1380     char buf[1024];
1381     AVOutputStream *ost;
1382     AVFormatContext *oc;
1383     int64_t total_size;
1384     AVCodecContext *enc;
1385     int frame_number, vid, i;
1386     double bitrate;
1387     int64_t pts = INT64_MAX;
1388     static int64_t last_time = -1;
1389     static int qp_histogram[52];
1390
1391     if (!is_last_report) {
1392         int64_t cur_time;
1393         /* display the report every 0.5 seconds */
1394         cur_time = av_gettime();
1395         if (last_time == -1) {
1396             last_time = cur_time;
1397             return;
1398         }
1399         if ((cur_time - last_time) < 500000)
1400             return;
1401         last_time = cur_time;
1402     }
1403
1404
1405     oc = output_files[0];
1406
1407     total_size = avio_size(oc->pb);
1408     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1409         total_size= avio_tell(oc->pb);
1410
1411     buf[0] = '\0';
1412     vid = 0;
1413     for(i=0;i<nb_ostreams;i++) {
1414         float q = -1;
1415         ost = ost_table[i];
1416         enc = ost->st->codec;
1417         if (!ost->st->stream_copy && enc->coded_frame)
1418             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1419         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1420             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1421         }
1422         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1423             float t = (av_gettime()-timer_start) / 1000000.0;
1424
1425             frame_number = ost->frame_number;
1426             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1427                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1428             if(is_last_report)
1429                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1430             if(qp_hist){
1431                 int j;
1432                 int qp = lrintf(q);
1433                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1434                     qp_histogram[qp]++;
1435                 for(j=0; j<32; j++)
1436                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1437             }
1438             if (enc->flags&CODEC_FLAG_PSNR){
1439                 int j;
1440                 double error, error_sum=0;
1441                 double scale, scale_sum=0;
1442                 char type[3]= {'Y','U','V'};
1443                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1444                 for(j=0; j<3; j++){
1445                     if(is_last_report){
1446                         error= enc->error[j];
1447                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1448                     }else{
1449                         error= enc->coded_frame->error[j];
1450                         scale= enc->width*enc->height*255.0*255.0;
1451                     }
1452                     if(j) scale/=4;
1453                     error_sum += error;
1454                     scale_sum += scale;
1455                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1456                 }
1457                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1458             }
1459             vid = 1;
1460         }
1461         /* compute min output value */
1462         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1463                                       ost->st->time_base, AV_TIME_BASE_Q));
1464     }
1465
1466     if (verbose > 0 || is_last_report) {
1467         int hours, mins, secs, us;
1468         secs = pts / AV_TIME_BASE;
1469         us = pts % AV_TIME_BASE;
1470         mins = secs / 60;
1471         secs %= 60;
1472         hours = mins / 60;
1473         mins %= 60;
1474
1475         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1476
1477         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1478                  "size=%8.0fkB time=", total_size / 1024.0);
1479         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1480                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1481                  (100 * us) / AV_TIME_BASE);
1482         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1483                  "bitrate=%6.1fkbits/s", bitrate);
1484
1485         if (nb_frames_dup || nb_frames_drop)
1486           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1487                   nb_frames_dup, nb_frames_drop);
1488
1489         if (verbose >= 0)
1490             fprintf(stderr, "%s    \r", buf);
1491
1492         fflush(stderr);
1493     }
1494
1495     if (is_last_report && verbose >= 0){
1496         int64_t raw= audio_size + video_size + extra_size;
1497         fprintf(stderr, "\n");
1498         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1499                 video_size/1024.0,
1500                 audio_size/1024.0,
1501                 extra_size/1024.0,
1502                 100.0*(total_size - raw)/raw
1503         );
1504     }
1505 }
1506
1507 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1508 {
1509     int fill_char = 0x00;
1510     if (sample_fmt == AV_SAMPLE_FMT_U8)
1511         fill_char = 0x80;
1512     memset(buf, fill_char, size);
1513 }
1514
1515 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1516 static int output_packet(AVInputStream *ist, int ist_index,
1517                          AVOutputStream **ost_table, int nb_ostreams,
1518                          const AVPacket *pkt)
1519 {
1520     AVFormatContext *os;
1521     AVOutputStream *ost;
1522     int ret, i;
1523     int got_output;
1524     AVFrame picture;
1525     void *buffer_to_free = NULL;
1526     static unsigned int samples_size= 0;
1527     AVSubtitle subtitle, *subtitle_to_free;
1528     int64_t pkt_pts = AV_NOPTS_VALUE;
1529 #if CONFIG_AVFILTER
1530     int frame_available;
1531 #endif
1532
1533     AVPacket avpkt;
1534     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1535
1536     if(ist->next_pts == AV_NOPTS_VALUE)
1537         ist->next_pts= ist->pts;
1538
1539     if (pkt == NULL) {
1540         /* EOF handling */
1541         av_init_packet(&avpkt);
1542         avpkt.data = NULL;
1543         avpkt.size = 0;
1544         goto handle_eof;
1545     } else {
1546         avpkt = *pkt;
1547     }
1548
1549     if(pkt->dts != AV_NOPTS_VALUE)
1550         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1551     if(pkt->pts != AV_NOPTS_VALUE)
1552         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1553
1554     //while we have more to decode or while the decoder did output something on EOF
1555     while (avpkt.size > 0 || (!pkt && got_output)) {
1556         uint8_t *data_buf, *decoded_data_buf;
1557         int data_size, decoded_data_size;
1558     handle_eof:
1559         ist->pts= ist->next_pts;
1560
1561         if(avpkt.size && avpkt.size != pkt->size &&
1562            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1563             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1564             ist->showed_multi_packet_warning=1;
1565         }
1566
1567         /* decode the packet if needed */
1568         decoded_data_buf = NULL; /* fail safe */
1569         decoded_data_size= 0;
1570         data_buf  = avpkt.data;
1571         data_size = avpkt.size;
1572         subtitle_to_free = NULL;
1573         if (ist->decoding_needed) {
1574             switch(ist->st->codec->codec_type) {
1575             case AVMEDIA_TYPE_AUDIO:{
1576                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1577                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1578                     av_free(samples);
1579                     samples= av_malloc(samples_size);
1580                 }
1581                 decoded_data_size= samples_size;
1582                     /* XXX: could avoid copy if PCM 16 bits with same
1583                        endianness as CPU */
1584                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1585                                             &avpkt);
1586                 if (ret < 0)
1587                     goto fail_decode;
1588                 avpkt.data += ret;
1589                 avpkt.size -= ret;
1590                 data_size   = ret;
1591                 got_output  = decoded_data_size > 0;
1592                 /* Some bug in mpeg audio decoder gives */
1593                 /* decoded_data_size < 0, it seems they are overflows */
1594                 if (!got_output) {
1595                     /* no audio frame */
1596                     continue;
1597                 }
1598                 decoded_data_buf = (uint8_t *)samples;
1599                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1600                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1601                 break;}
1602             case AVMEDIA_TYPE_VIDEO:
1603                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1604                     /* XXX: allocate picture correctly */
1605                     avcodec_get_frame_defaults(&picture);
1606                     avpkt.pts = pkt_pts;
1607                     avpkt.dts = ist->pts;
1608                     pkt_pts = AV_NOPTS_VALUE;
1609
1610                     ret = avcodec_decode_video2(ist->st->codec,
1611                                                 &picture, &got_output, &avpkt);
1612                     ist->st->quality= picture.quality;
1613                     if (ret < 0)
1614                         goto fail_decode;
1615                     if (!got_output) {
1616                         /* no picture yet */
1617                         goto discard_packet;
1618                     }
1619                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1620                     if (ist->st->codec->time_base.num != 0) {
1621                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1622                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1623                                           ist->st->codec->time_base.num * ticks) /
1624                             ist->st->codec->time_base.den;
1625                     }
1626                     avpkt.size = 0;
1627                     buffer_to_free = NULL;
1628                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1629                     break;
1630             case AVMEDIA_TYPE_SUBTITLE:
1631                 ret = avcodec_decode_subtitle2(ist->st->codec,
1632                                                &subtitle, &got_output, &avpkt);
1633                 if (ret < 0)
1634                     goto fail_decode;
1635                 if (!got_output) {
1636                     goto discard_packet;
1637                 }
1638                 subtitle_to_free = &subtitle;
1639                 avpkt.size = 0;
1640                 break;
1641             default:
1642                 goto fail_decode;
1643             }
1644         } else {
1645             switch(ist->st->codec->codec_type) {
1646             case AVMEDIA_TYPE_AUDIO:
1647                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1648                     ist->st->codec->sample_rate;
1649                 break;
1650             case AVMEDIA_TYPE_VIDEO:
1651                 if (ist->st->codec->time_base.num != 0) {
1652                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1653                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1654                                       ist->st->codec->time_base.num * ticks) /
1655                         ist->st->codec->time_base.den;
1656                 }
1657                 break;
1658             }
1659             ret = avpkt.size;
1660             avpkt.size = 0;
1661         }
1662
1663 #if CONFIG_AVFILTER
1664         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1665         if (start_time == 0 || ist->pts >= start_time) {
1666             for(i=0;i<nb_ostreams;i++) {
1667                 ost = ost_table[i];
1668                 if (ost->input_video_filter && ost->source_index == ist_index) {
1669                     if (!picture.sample_aspect_ratio.num)
1670                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1671                     picture.pts = ist->pts;
1672
1673                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1674                 }
1675             }
1676         }
1677 #endif
1678
1679         // preprocess audio (volume)
1680         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1681             if (audio_volume != 256) {
1682                 short *volp;
1683                 volp = samples;
1684                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1685                     int v = ((*volp) * audio_volume + 128) >> 8;
1686                     if (v < -32768) v = -32768;
1687                     if (v >  32767) v = 32767;
1688                     *volp++ = v;
1689                 }
1690             }
1691         }
1692
1693         /* frame rate emulation */
1694         if (rate_emu) {
1695             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1696             int64_t now = av_gettime() - ist->start;
1697             if (pts > now)
1698                 usleep(pts - now);
1699         }
1700         /* if output time reached then transcode raw format,
1701            encode packets and output them */
1702         if (start_time == 0 || ist->pts >= start_time)
1703             for(i=0;i<nb_ostreams;i++) {
1704                 int frame_size;
1705
1706                 ost = ost_table[i];
1707                 if (ost->source_index == ist_index) {
1708 #if CONFIG_AVFILTER
1709                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1710                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1711                 while (frame_available) {
1712                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1713                         AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1714                         if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1715                             goto cont;
1716                         if (ost->picref) {
1717                             avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1718                             ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1719                         }
1720                     }
1721 #endif
1722                     os = output_files[ost->file_index];
1723
1724                     /* set the input output pts pairs */
1725                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1726
1727                     if (ost->encoding_needed) {
1728                         av_assert0(ist->decoding_needed);
1729                         switch(ost->st->codec->codec_type) {
1730                         case AVMEDIA_TYPE_AUDIO:
1731                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1732                             break;
1733                         case AVMEDIA_TYPE_VIDEO:
1734 #if CONFIG_AVFILTER
1735                             if (ost->picref->video && !ost->frame_aspect_ratio)
1736                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1737 #endif
1738                             do_video_out(os, ost, ist, &picture, &frame_size);
1739                             if (vstats_filename && frame_size)
1740                                 do_video_stats(os, ost, frame_size);
1741                             break;
1742                         case AVMEDIA_TYPE_SUBTITLE:
1743                             do_subtitle_out(os, ost, ist, &subtitle,
1744                                             pkt->pts);
1745                             break;
1746                         default:
1747                             abort();
1748                         }
1749                     } else {
1750                         AVFrame avframe; //FIXME/XXX remove this
1751                         AVPicture pict;
1752                         AVPacket opkt;
1753                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1754
1755                         av_init_packet(&opkt);
1756
1757                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1758 #if !CONFIG_AVFILTER
1759                             continue;
1760 #else
1761                             goto cont;
1762 #endif
1763
1764                         /* no reencoding needed : output the packet directly */
1765                         /* force the input stream PTS */
1766
1767                         avcodec_get_frame_defaults(&avframe);
1768                         ost->st->codec->coded_frame= &avframe;
1769                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1770
1771                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1772                             audio_size += data_size;
1773                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1774                             video_size += data_size;
1775                             ost->sync_opts++;
1776                         }
1777
1778                         opkt.stream_index= ost->index;
1779                         if(pkt->pts != AV_NOPTS_VALUE)
1780                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1781                         else
1782                             opkt.pts= AV_NOPTS_VALUE;
1783
1784                         if (pkt->dts == AV_NOPTS_VALUE)
1785                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1786                         else
1787                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1788                         opkt.dts -= ost_tb_start_time;
1789
1790                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1791                         opkt.flags= pkt->flags;
1792
1793                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1794                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1795                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1796                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1797                            ) {
1798                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1799                                 opkt.destruct= av_destruct_packet;
1800                         } else {
1801                             opkt.data = data_buf;
1802                             opkt.size = data_size;
1803                         }
1804
1805                         if (os->oformat->flags & AVFMT_RAWPICTURE) {
1806                             /* store AVPicture in AVPacket, as expected by the output format */
1807                             avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1808                             opkt.data = (uint8_t *)&pict;
1809                             opkt.size = sizeof(AVPicture);
1810                             opkt.flags |= AV_PKT_FLAG_KEY;
1811                         }
1812                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1813                         ost->st->codec->frame_number++;
1814                         ost->frame_number++;
1815                         av_free_packet(&opkt);
1816                     }
1817 #if CONFIG_AVFILTER
1818                     cont:
1819                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1820                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1821                     avfilter_unref_buffer(ost->picref);
1822                 }
1823 #endif
1824                 }
1825             }
1826
1827         av_free(buffer_to_free);
1828         /* XXX: allocate the subtitles in the codec ? */
1829         if (subtitle_to_free) {
1830             avsubtitle_free(subtitle_to_free);
1831             subtitle_to_free = NULL;
1832         }
1833     }
1834  discard_packet:
1835     if (pkt == NULL) {
1836         /* EOF handling */
1837
1838         for(i=0;i<nb_ostreams;i++) {
1839             ost = ost_table[i];
1840             if (ost->source_index == ist_index) {
1841                 AVCodecContext *enc= ost->st->codec;
1842                 os = output_files[ost->file_index];
1843
1844                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1845                     continue;
1846                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1847                     continue;
1848
1849                 if (ost->encoding_needed) {
1850                     for(;;) {
1851                         AVPacket pkt;
1852                         int fifo_bytes;
1853                         av_init_packet(&pkt);
1854                         pkt.stream_index= ost->index;
1855
1856                         switch(ost->st->codec->codec_type) {
1857                         case AVMEDIA_TYPE_AUDIO:
1858                             fifo_bytes = av_fifo_size(ost->fifo);
1859                             ret = 0;
1860                             /* encode any samples remaining in fifo */
1861                             if (fifo_bytes > 0) {
1862                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1863                                 int fs_tmp = enc->frame_size;
1864
1865                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1866                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1867                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1868                                 } else { /* pad */
1869                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1870                                     if (allocated_audio_buf_size < frame_bytes)
1871                                         ffmpeg_exit(1);
1872                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1873                                 }
1874
1875                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1876                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1877                                                           ost->st->time_base.num, enc->sample_rate);
1878                                 enc->frame_size = fs_tmp;
1879                             }
1880                             if(ret <= 0) {
1881                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1882                             }
1883                             if (ret < 0) {
1884                                 fprintf(stderr, "Audio encoding failed\n");
1885                                 ffmpeg_exit(1);
1886                             }
1887                             audio_size += ret;
1888                             pkt.flags |= AV_PKT_FLAG_KEY;
1889                             break;
1890                         case AVMEDIA_TYPE_VIDEO:
1891                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1892                             if (ret < 0) {
1893                                 fprintf(stderr, "Video encoding failed\n");
1894                                 ffmpeg_exit(1);
1895                             }
1896                             video_size += ret;
1897                             if(enc->coded_frame && enc->coded_frame->key_frame)
1898                                 pkt.flags |= AV_PKT_FLAG_KEY;
1899                             if (ost->logfile && enc->stats_out) {
1900                                 fprintf(ost->logfile, "%s", enc->stats_out);
1901                             }
1902                             break;
1903                         default:
1904                             ret=-1;
1905                         }
1906
1907                         if(ret<=0)
1908                             break;
1909                         pkt.data= bit_buffer;
1910                         pkt.size= ret;
1911                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1912                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1913                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1914                     }
1915                 }
1916             }
1917         }
1918     }
1919
1920     return 0;
1921  fail_decode:
1922     return -1;
1923 }
1924
1925 static void print_sdp(AVFormatContext **avc, int n)
1926 {
1927     char sdp[2048];
1928
1929     av_sdp_create(avc, n, sdp, sizeof(sdp));
1930     printf("SDP:\n%s\n", sdp);
1931     fflush(stdout);
1932 }
1933
1934 static int copy_chapters(int infile, int outfile)
1935 {
1936     AVFormatContext *is = input_files[infile].ctx;
1937     AVFormatContext *os = output_files[outfile];
1938     int i;
1939
1940     for (i = 0; i < is->nb_chapters; i++) {
1941         AVChapter *in_ch = is->chapters[i], *out_ch;
1942         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1943                                       AV_TIME_BASE_Q, in_ch->time_base);
1944         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1945                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1946
1947
1948         if (in_ch->end < ts_off)
1949             continue;
1950         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1951             break;
1952
1953         out_ch = av_mallocz(sizeof(AVChapter));
1954         if (!out_ch)
1955             return AVERROR(ENOMEM);
1956
1957         out_ch->id        = in_ch->id;
1958         out_ch->time_base = in_ch->time_base;
1959         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1960         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1961
1962         if (metadata_chapters_autocopy)
1963             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1964
1965         os->nb_chapters++;
1966         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1967         if (!os->chapters)
1968             return AVERROR(ENOMEM);
1969         os->chapters[os->nb_chapters - 1] = out_ch;
1970     }
1971     return 0;
1972 }
1973
1974 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1975                                     AVCodecContext *avctx)
1976 {
1977     char *p;
1978     int n = 1, i;
1979     int64_t t;
1980
1981     for (p = kf; *p; p++)
1982         if (*p == ',')
1983             n++;
1984     ost->forced_kf_count = n;
1985     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1986     if (!ost->forced_kf_pts) {
1987         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1988         ffmpeg_exit(1);
1989     }
1990     for (i = 0; i < n; i++) {
1991         p = i ? strchr(p, ',') + 1 : kf;
1992         t = parse_time_or_die("force_key_frames", p, 1);
1993         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1994     }
1995 }
1996
1997 /*
1998  * The following code is the main loop of the file converter
1999  */
2000 static int transcode(AVFormatContext **output_files,
2001                      int nb_output_files,
2002                      AVInputFile *input_files,
2003                      int nb_input_files,
2004                      AVStreamMap *stream_maps, int nb_stream_maps)
2005 {
2006     int ret = 0, i, j, k, n, nb_ostreams = 0, step;
2007
2008     AVFormatContext *is, *os;
2009     AVCodecContext *codec, *icodec;
2010     AVOutputStream *ost, **ost_table = NULL;
2011     AVInputStream *ist;
2012     char error[1024];
2013     int key;
2014     int want_sdp = 1;
2015     uint8_t no_packet[MAX_FILES]={0};
2016     int no_packet_count=0;
2017     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
2018     int nb_streams[AVMEDIA_TYPE_NB]={0};
2019
2020     if (rate_emu)
2021         for (i = 0; i < nb_input_streams; i++)
2022             input_streams[i].start = av_gettime();
2023
2024     /* output stream init */
2025     nb_ostreams = 0;
2026     for(i=0;i<nb_output_files;i++) {
2027         os = output_files[i];
2028         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2029             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2030             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2031             ret = AVERROR(EINVAL);
2032             goto fail;
2033         }
2034         nb_ostreams += os->nb_streams;
2035     }
2036     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2037         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2038         ret = AVERROR(EINVAL);
2039         goto fail;
2040     }
2041
2042     /* Sanity check the mapping args -- do the input files & streams exist? */
2043     for(i=0;i<nb_stream_maps;i++) {
2044         int fi = stream_maps[i].file_index;
2045         int si = stream_maps[i].stream_index;
2046
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 input stream #%d.%d\n", fi, si);
2050             ret = AVERROR(EINVAL);
2051             goto fail;
2052         }
2053         fi = stream_maps[i].sync_file_index;
2054         si = stream_maps[i].sync_stream_index;
2055         if (fi < 0 || fi > nb_input_files - 1 ||
2056             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2057             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2058             ret = AVERROR(EINVAL);
2059             goto fail;
2060         }
2061     }
2062
2063     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2064     if (!ost_table)
2065         goto fail;
2066
2067     for(k=0;k<nb_output_files;k++) {
2068         os = output_files[k];
2069         for(i=0;i<os->nb_streams;i++,n++) {
2070             nb_streams[os->streams[i]->codec->codec_type]++;
2071         }
2072     }
2073     for(step=1<<30; step; step>>=1){
2074         int found_streams[AVMEDIA_TYPE_NB]={0};
2075         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2076             nb_frame_threshold[j] += step;
2077
2078         for(j=0; j<nb_input_streams; j++) {
2079             int skip=0;
2080             ist = &input_streams[j];
2081             if(opt_programid){
2082                 int pi,si;
2083                 AVFormatContext *f= input_files[ ist->file_index ].ctx;
2084                 skip=1;
2085                 for(pi=0; pi<f->nb_programs; pi++){
2086                     AVProgram *p= f->programs[pi];
2087                     if(p->id == opt_programid)
2088                         for(si=0; si<p->nb_stream_indexes; si++){
2089                             if(f->streams[ p->stream_index[si] ] == ist->st)
2090                                 skip=0;
2091                         }
2092                 }
2093             }
2094             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2095                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2096                 found_streams[ist->st->codec->codec_type]++;
2097             }
2098         }
2099         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2100             if(found_streams[j] < nb_streams[j])
2101                 nb_frame_threshold[j] -= step;
2102     }
2103     n = 0;
2104     for(k=0;k<nb_output_files;k++) {
2105         os = output_files[k];
2106         for(i=0;i<os->nb_streams;i++,n++) {
2107             int found;
2108             ost = ost_table[n] = output_streams_for_file[k][i];
2109             ost->st = os->streams[i];
2110             if (nb_stream_maps > 0) {
2111                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2112                     stream_maps[n].stream_index;
2113
2114                 /* Sanity check that the stream types match */
2115                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2116                     int i= ost->file_index;
2117                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2118                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2119                         stream_maps[n].file_index, stream_maps[n].stream_index,
2120                         ost->file_index, ost->index);
2121                     ffmpeg_exit(1);
2122                 }
2123
2124             } else {
2125                 /* get corresponding input stream index : we select the first one with the right type */
2126                 found = 0;
2127                 for (j = 0; j < nb_input_streams; j++) {
2128                     int skip=0;
2129                     ist = &input_streams[j];
2130                     if(opt_programid){
2131                         int pi,si;
2132                         AVFormatContext *f = input_files[ist->file_index].ctx;
2133                         skip=1;
2134                         for(pi=0; pi<f->nb_programs; pi++){
2135                             AVProgram *p= f->programs[pi];
2136                             if(p->id == opt_programid)
2137                                 for(si=0; si<p->nb_stream_indexes; si++){
2138                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2139                                         skip=0;
2140                                 }
2141                         }
2142                     }
2143                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2144                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2145                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2146                             ost->source_index = j;
2147                             found = 1;
2148                             break;
2149                     }
2150                 }
2151
2152                 if (!found) {
2153                     if(! opt_programid) {
2154                         /* try again and reuse existing stream */
2155                         for (j = 0; j < nb_input_streams; j++) {
2156                             ist = &input_streams[j];
2157                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2158                                 && ist->st->discard != AVDISCARD_ALL) {
2159                                 ost->source_index = j;
2160                                 found = 1;
2161                             }
2162                         }
2163                     }
2164                     if (!found) {
2165                         int i= ost->file_index;
2166                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2167                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2168                                 ost->file_index, ost->index);
2169                         ffmpeg_exit(1);
2170                     }
2171                 }
2172             }
2173             ist = &input_streams[ost->source_index];
2174             ist->discard = 0;
2175             ost->sync_ist = (nb_stream_maps > 0) ?
2176                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2177                          stream_maps[n].sync_stream_index] : ist;
2178         }
2179     }
2180
2181     /* for each output stream, we compute the right encoding parameters */
2182     for(i=0;i<nb_ostreams;i++) {
2183         ost = ost_table[i];
2184         os = output_files[ost->file_index];
2185         ist = &input_streams[ost->source_index];
2186
2187         codec = ost->st->codec;
2188         icodec = ist->st->codec;
2189
2190         if (metadata_streams_autocopy)
2191             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2192                          AV_DICT_DONT_OVERWRITE);
2193
2194         ost->st->disposition = ist->st->disposition;
2195         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2196         codec->chroma_sample_location = icodec->chroma_sample_location;
2197
2198         if (ost->st->stream_copy) {
2199             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2200
2201             if (extra_size > INT_MAX)
2202                 goto fail;
2203
2204             /* if stream_copy is selected, no need to decode or encode */
2205             codec->codec_id = icodec->codec_id;
2206             codec->codec_type = icodec->codec_type;
2207
2208             if(!codec->codec_tag){
2209                 if(   !os->oformat->codec_tag
2210                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2211                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2212                     codec->codec_tag = icodec->codec_tag;
2213             }
2214
2215             codec->bit_rate = icodec->bit_rate;
2216             codec->rc_max_rate    = icodec->rc_max_rate;
2217             codec->rc_buffer_size = icodec->rc_buffer_size;
2218             codec->extradata= av_mallocz(extra_size);
2219             if (!codec->extradata)
2220                 goto fail;
2221             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2222             codec->extradata_size= icodec->extradata_size;
2223             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){
2224                 codec->time_base = icodec->time_base;
2225                 codec->time_base.num *= icodec->ticks_per_frame;
2226                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2227                           codec->time_base.num, codec->time_base.den, INT_MAX);
2228             }else
2229                 codec->time_base = ist->st->time_base;
2230             switch(codec->codec_type) {
2231             case AVMEDIA_TYPE_AUDIO:
2232                 if(audio_volume != 256) {
2233                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2234                     ffmpeg_exit(1);
2235                 }
2236                 codec->channel_layout = icodec->channel_layout;
2237                 codec->sample_rate = icodec->sample_rate;
2238                 codec->channels = icodec->channels;
2239                 codec->frame_size = icodec->frame_size;
2240                 codec->audio_service_type = icodec->audio_service_type;
2241                 codec->block_align= icodec->block_align;
2242                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2243                     codec->block_align= 0;
2244                 if(codec->codec_id == CODEC_ID_AC3)
2245                     codec->block_align= 0;
2246                 break;
2247             case AVMEDIA_TYPE_VIDEO:
2248                 codec->pix_fmt = icodec->pix_fmt;
2249                 codec->width = icodec->width;
2250                 codec->height = icodec->height;
2251                 codec->has_b_frames = icodec->has_b_frames;
2252                 if (!codec->sample_aspect_ratio.num) {
2253                     codec->sample_aspect_ratio =
2254                     ost->st->sample_aspect_ratio =
2255                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2256                         ist->st->codec->sample_aspect_ratio.num ?
2257                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2258                 }
2259                 break;
2260             case AVMEDIA_TYPE_SUBTITLE:
2261                 codec->width = icodec->width;
2262                 codec->height = icodec->height;
2263                 break;
2264             case AVMEDIA_TYPE_DATA:
2265                 break;
2266             default:
2267                 abort();
2268             }
2269         } else {
2270             if (!ost->enc)
2271                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2272             switch(codec->codec_type) {
2273             case AVMEDIA_TYPE_AUDIO:
2274                 ost->fifo= av_fifo_alloc(1024);
2275                 if(!ost->fifo)
2276                     goto fail;
2277                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2278                 if (!codec->sample_rate) {
2279                     codec->sample_rate = icodec->sample_rate;
2280                     if (icodec->lowres)
2281                         codec->sample_rate >>= icodec->lowres;
2282                 }
2283                 choose_sample_rate(ost->st, ost->enc);
2284                 codec->time_base = (AVRational){1, codec->sample_rate};
2285                 if (!codec->channels) {
2286                     codec->channels = icodec->channels;
2287                     codec->channel_layout = icodec->channel_layout;
2288                 }
2289                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2290                     codec->channel_layout = 0;
2291                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2292                 icodec->request_channels = codec->channels;
2293                 ist->decoding_needed = 1;
2294                 ost->encoding_needed = 1;
2295                 ost->resample_sample_fmt  = icodec->sample_fmt;
2296                 ost->resample_sample_rate = icodec->sample_rate;
2297                 ost->resample_channels    = icodec->channels;
2298                 break;
2299             case AVMEDIA_TYPE_VIDEO:
2300                 if (codec->pix_fmt == PIX_FMT_NONE)
2301                     codec->pix_fmt = icodec->pix_fmt;
2302                 choose_pixel_fmt(ost->st, ost->enc);
2303
2304                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2305                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2306                     ffmpeg_exit(1);
2307                 }
2308                 ost->video_resample = codec->width   != icodec->width  ||
2309                                       codec->height  != icodec->height ||
2310                                       codec->pix_fmt != icodec->pix_fmt;
2311                 if (ost->video_resample) {
2312                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2313                 }
2314                 if (!codec->width || !codec->height) {
2315                     codec->width  = icodec->width;
2316                     codec->height = icodec->height;
2317                 }
2318                 ost->resample_height = icodec->height;
2319                 ost->resample_width  = icodec->width;
2320                 ost->resample_pix_fmt= icodec->pix_fmt;
2321                 ost->encoding_needed = 1;
2322                 ist->decoding_needed = 1;
2323
2324                 if (!ost->frame_rate.num)
2325                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2326                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2327                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2328                     ost->frame_rate = ost->enc->supported_framerates[idx];
2329                 }
2330                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2331                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2332                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2333                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2334                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2335                 }
2336
2337 #if CONFIG_AVFILTER
2338                 if (configure_video_filters(ist, ost)) {
2339                     fprintf(stderr, "Error opening filters!\n");
2340                     exit(1);
2341                 }
2342 #endif
2343                 break;
2344             case AVMEDIA_TYPE_SUBTITLE:
2345                 ost->encoding_needed = 1;
2346                 ist->decoding_needed = 1;
2347                 break;
2348             default:
2349                 abort();
2350                 break;
2351             }
2352             /* two pass mode */
2353             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2354                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2355                 char logfilename[1024];
2356                 FILE *f;
2357
2358                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2359                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2360                          i);
2361                 if (codec->flags & CODEC_FLAG_PASS1) {
2362                     f = fopen(logfilename, "wb");
2363                     if (!f) {
2364                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2365                         ffmpeg_exit(1);
2366                     }
2367                     ost->logfile = f;
2368                 } else {
2369                     char  *logbuffer;
2370                     size_t logbuffer_size;
2371                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2372                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2373                         ffmpeg_exit(1);
2374                     }
2375                     codec->stats_in = logbuffer;
2376                 }
2377             }
2378         }
2379         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2380             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2381             int size= codec->width * codec->height;
2382             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2383         }
2384     }
2385
2386     if (!bit_buffer)
2387         bit_buffer = av_malloc(bit_buffer_size);
2388     if (!bit_buffer) {
2389         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2390                 bit_buffer_size);
2391         ret = AVERROR(ENOMEM);
2392         goto fail;
2393     }
2394
2395     /* open each encoder */
2396     for(i=0;i<nb_ostreams;i++) {
2397         ost = ost_table[i];
2398         if (ost->encoding_needed) {
2399             AVCodec *codec = ost->enc;
2400             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2401             if (!codec) {
2402                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2403                          ost->st->codec->codec_id, ost->file_index, ost->index);
2404                 ret = AVERROR(EINVAL);
2405                 goto dump_format;
2406             }
2407             if (dec->subtitle_header) {
2408                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2409                 if (!ost->st->codec->subtitle_header) {
2410                     ret = AVERROR(ENOMEM);
2411                     goto dump_format;
2412                 }
2413                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2414                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2415             }
2416             if (avcodec_open(ost->st->codec, codec) < 0) {
2417                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2418                         ost->file_index, ost->index);
2419                 ret = AVERROR(EINVAL);
2420                 goto dump_format;
2421             }
2422             extra_size += ost->st->codec->extradata_size;
2423         }
2424     }
2425
2426     /* open each decoder */
2427     for (i = 0; i < nb_input_streams; i++) {
2428         ist = &input_streams[i];
2429         if (ist->decoding_needed) {
2430             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2431             if (!codec)
2432                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2433             if (!codec) {
2434                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2435                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2436                 ret = AVERROR(EINVAL);
2437                 goto dump_format;
2438             }
2439             if (avcodec_open(ist->st->codec, codec) < 0) {
2440                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2441                         ist->file_index, ist->st->index);
2442                 ret = AVERROR(EINVAL);
2443                 goto dump_format;
2444             }
2445             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2446             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2447         }
2448     }
2449
2450     /* init pts */
2451     for (i = 0; i < nb_input_streams; i++) {
2452         AVStream *st;
2453         ist = &input_streams[i];
2454         st= ist->st;
2455         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2456         ist->next_pts = AV_NOPTS_VALUE;
2457         ist->is_start = 1;
2458     }
2459
2460     /* set meta data information from input file if required */
2461     for (i=0;i<nb_meta_data_maps;i++) {
2462         AVFormatContext *files[2];
2463         AVDictionary    **meta[2];
2464         int j;
2465
2466 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2467         if ((index) < 0 || (index) >= (nb_elems)) {\
2468             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2469                      (desc), (index));\
2470             ret = AVERROR(EINVAL);\
2471             goto dump_format;\
2472         }
2473
2474         int out_file_index = meta_data_maps[i][0].file;
2475         int in_file_index = meta_data_maps[i][1].file;
2476         if (in_file_index < 0 || out_file_index < 0)
2477             continue;
2478         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2479         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2480
2481         files[0] = output_files[out_file_index];
2482         files[1] = input_files[in_file_index].ctx;
2483
2484         for (j = 0; j < 2; j++) {
2485             AVMetaDataMap *map = &meta_data_maps[i][j];
2486
2487             switch (map->type) {
2488             case 'g':
2489                 meta[j] = &files[j]->metadata;
2490                 break;
2491             case 's':
2492                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2493                 meta[j] = &files[j]->streams[map->index]->metadata;
2494                 break;
2495             case 'c':
2496                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2497                 meta[j] = &files[j]->chapters[map->index]->metadata;
2498                 break;
2499             case 'p':
2500                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2501                 meta[j] = &files[j]->programs[map->index]->metadata;
2502                 break;
2503             }
2504         }
2505
2506         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2507     }
2508
2509     /* copy global metadata by default */
2510     if (metadata_global_autocopy) {
2511
2512         for (i = 0; i < nb_output_files; i++)
2513             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2514                          AV_DICT_DONT_OVERWRITE);
2515     }
2516
2517     /* copy chapters according to chapter maps */
2518     for (i = 0; i < nb_chapter_maps; i++) {
2519         int infile  = chapter_maps[i].in_file;
2520         int outfile = chapter_maps[i].out_file;
2521
2522         if (infile < 0 || outfile < 0)
2523             continue;
2524         if (infile >= nb_input_files) {
2525             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2526             ret = AVERROR(EINVAL);
2527             goto dump_format;
2528         }
2529         if (outfile >= nb_output_files) {
2530             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2531             ret = AVERROR(EINVAL);
2532             goto dump_format;
2533         }
2534         copy_chapters(infile, outfile);
2535     }
2536
2537     /* copy chapters from the first input file that has them*/
2538     if (!nb_chapter_maps)
2539         for (i = 0; i < nb_input_files; i++) {
2540             if (!input_files[i].ctx->nb_chapters)
2541                 continue;
2542
2543             for (j = 0; j < nb_output_files; j++)
2544                 if ((ret = copy_chapters(i, j)) < 0)
2545                     goto dump_format;
2546             break;
2547         }
2548
2549     /* open files and write file headers */
2550     for(i=0;i<nb_output_files;i++) {
2551         os = output_files[i];
2552         if (av_write_header(os) < 0) {
2553             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2554             ret = AVERROR(EINVAL);
2555             goto dump_format;
2556         }
2557         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2558             want_sdp = 0;
2559         }
2560     }
2561
2562  dump_format:
2563     /* dump the file output parameters - cannot be done before in case
2564        of stream copy */
2565     for(i=0;i<nb_output_files;i++) {
2566         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2567     }
2568
2569     /* dump the stream mapping */
2570     if (verbose >= 0) {
2571         fprintf(stderr, "Stream mapping:\n");
2572         for(i=0;i<nb_ostreams;i++) {
2573             ost = ost_table[i];
2574             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2575                     input_streams[ost->source_index].file_index,
2576                     input_streams[ost->source_index].st->index,
2577                     ost->file_index,
2578                     ost->index);
2579             if (ost->sync_ist != &input_streams[ost->source_index])
2580                 fprintf(stderr, " [sync #%d.%d]",
2581                         ost->sync_ist->file_index,
2582                         ost->sync_ist->st->index);
2583             fprintf(stderr, "\n");
2584         }
2585     }
2586
2587     if (ret) {
2588         fprintf(stderr, "%s\n", error);
2589         goto fail;
2590     }
2591
2592     if (want_sdp) {
2593         print_sdp(output_files, nb_output_files);
2594     }
2595
2596     if (!using_stdin) {
2597         if(verbose >= 0)
2598             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2599         avio_set_interrupt_cb(decode_interrupt_cb);
2600     }
2601     term_init();
2602
2603     timer_start = av_gettime();
2604
2605     for(; received_sigterm == 0;) {
2606         int file_index, ist_index;
2607         AVPacket pkt;
2608         double ipts_min;
2609         double opts_min;
2610
2611     redo:
2612         ipts_min= 1e100;
2613         opts_min= 1e100;
2614         /* if 'q' pressed, exits */
2615         if (!using_stdin) {
2616             if (q_pressed)
2617                 break;
2618             /* read_key() returns 0 on EOF */
2619             key = read_key();
2620             if (key == 'q')
2621                 break;
2622             if (key == '+') verbose++;
2623             if (key == '-') verbose--;
2624             if (key == 's') qp_hist     ^= 1;
2625             if (key == 'h'){
2626                 if (do_hex_dump){
2627                     do_hex_dump = do_pkt_dump = 0;
2628                 } else if(do_pkt_dump){
2629                     do_hex_dump = 1;
2630                 } else
2631                     do_pkt_dump = 1;
2632                 av_log_set_level(AV_LOG_DEBUG);
2633             }
2634             if (key == 'd' || key == 'D'){
2635                 int debug=0;
2636                 if(key == 'D') {
2637                     debug = input_streams[0].st->codec->debug<<1;
2638                     if(!debug) debug = 1;
2639                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2640                         debug += debug;
2641                 }else
2642                     scanf("%d", &debug);
2643                 for(i=0;i<nb_input_streams;i++) {
2644                     input_streams[i].st->codec->debug = debug;
2645                 }
2646                 for(i=0;i<nb_ostreams;i++) {
2647                     ost = ost_table[i];
2648                     ost->st->codec->debug = debug;
2649                 }
2650                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2651                 fprintf(stderr,"debug=%d\n", debug);
2652             }
2653             if (key == '?'){
2654                 fprintf(stderr, "key    function\n"
2655                                 "?      show this help\n"
2656                                 "+      increase verbosity\n"
2657                                 "-      decrease verbosity\n"
2658                                 "D      cycle through available debug modes\n"
2659                                 "h      dump packets/hex press to cycle through the 3 states\n"
2660                                 "q      quit\n"
2661                                 "s      Show QP histogram\n"
2662                 );
2663             }
2664         }
2665
2666         /* select the stream that we must read now by looking at the
2667            smallest output pts */
2668         file_index = -1;
2669         for(i=0;i<nb_ostreams;i++) {
2670             double ipts, opts;
2671             ost = ost_table[i];
2672             os = output_files[ost->file_index];
2673             ist = &input_streams[ost->source_index];
2674             if(ist->is_past_recording_time || no_packet[ist->file_index])
2675                 continue;
2676                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2677             ipts = (double)ist->pts;
2678             if (!input_files[ist->file_index].eof_reached){
2679                 if(ipts < ipts_min) {
2680                     ipts_min = ipts;
2681                     if(input_sync ) file_index = ist->file_index;
2682                 }
2683                 if(opts < opts_min) {
2684                     opts_min = opts;
2685                     if(!input_sync) file_index = ist->file_index;
2686                 }
2687             }
2688             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2689                 file_index= -1;
2690                 break;
2691             }
2692         }
2693         /* if none, if is finished */
2694         if (file_index < 0) {
2695             if(no_packet_count){
2696                 no_packet_count=0;
2697                 memset(no_packet, 0, sizeof(no_packet));
2698                 usleep(10000);
2699                 continue;
2700             }
2701             break;
2702         }
2703
2704         /* finish if limit size exhausted */
2705         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2706             break;
2707
2708         /* read a frame from it and output it in the fifo */
2709         is = input_files[file_index].ctx;
2710         ret= av_read_frame(is, &pkt);
2711         if(ret == AVERROR(EAGAIN)){
2712             no_packet[file_index]=1;
2713             no_packet_count++;
2714             continue;
2715         }
2716         if (ret < 0) {
2717             input_files[file_index].eof_reached = 1;
2718             if (opt_shortest)
2719                 break;
2720             else
2721                 continue;
2722         }
2723
2724         no_packet_count=0;
2725         memset(no_packet, 0, sizeof(no_packet));
2726
2727         if (do_pkt_dump) {
2728             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2729                              is->streams[pkt.stream_index]);
2730         }
2731         /* the following test is needed in case new streams appear
2732            dynamically in stream : we ignore them */
2733         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2734             goto discard_packet;
2735         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2736         ist = &input_streams[ist_index];
2737         if (ist->discard)
2738             goto discard_packet;
2739
2740         if (pkt.dts != AV_NOPTS_VALUE)
2741             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2742         if (pkt.pts != AV_NOPTS_VALUE)
2743             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2744
2745         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2746             && input_files_ts_scale[file_index][pkt.stream_index]){
2747             if(pkt.pts != AV_NOPTS_VALUE)
2748                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2749             if(pkt.dts != AV_NOPTS_VALUE)
2750                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2751         }
2752
2753 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2754         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2755             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2756             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2757             int64_t delta= pkt_dts - ist->next_pts;
2758             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2759                 input_files_ts_offset[ist->file_index]-= delta;
2760                 if (verbose > 2)
2761                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2762                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2763                 if(pkt.pts != AV_NOPTS_VALUE)
2764                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2765             }
2766         }
2767
2768         /* finish if recording time exhausted */
2769         if (recording_time != INT64_MAX &&
2770             (pkt.pts != AV_NOPTS_VALUE ?
2771                 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000})
2772                     :
2773                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, recording_time + start_time, (AVRational){1, 1000000})
2774             )>= 0) {
2775             ist->is_past_recording_time = 1;
2776             goto discard_packet;
2777         }
2778
2779         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2780         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2781
2782             if (verbose >= 0)
2783                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2784                         ist->file_index, ist->st->index);
2785             if (exit_on_error)
2786                 ffmpeg_exit(1);
2787             av_free_packet(&pkt);
2788             goto redo;
2789         }
2790
2791     discard_packet:
2792         av_free_packet(&pkt);
2793
2794         /* dump report by using the output first video and audio streams */
2795         print_report(output_files, ost_table, nb_ostreams, 0);
2796     }
2797
2798     /* at the end of stream, we must flush the decoder buffers */
2799     for (i = 0; i < nb_input_streams; i++) {
2800         ist = &input_streams[i];
2801         if (ist->decoding_needed) {
2802             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2803         }
2804     }
2805
2806     term_exit();
2807
2808     /* write the trailer if needed and close file */
2809     for(i=0;i<nb_output_files;i++) {
2810         os = output_files[i];
2811         av_write_trailer(os);
2812     }
2813
2814     /* dump report by using the first video and audio streams */
2815     print_report(output_files, ost_table, nb_ostreams, 1);
2816
2817     /* close each encoder */
2818     for(i=0;i<nb_ostreams;i++) {
2819         ost = ost_table[i];
2820         if (ost->encoding_needed) {
2821             av_freep(&ost->st->codec->stats_in);
2822             avcodec_close(ost->st->codec);
2823         }
2824 #if CONFIG_AVFILTER
2825         avfilter_graph_free(&ost->graph);
2826 #endif
2827     }
2828
2829     /* close each decoder */
2830     for (i = 0; i < nb_input_streams; i++) {
2831         ist = &input_streams[i];
2832         if (ist->decoding_needed) {
2833             avcodec_close(ist->st->codec);
2834         }
2835     }
2836
2837     /* finished ! */
2838     ret = 0;
2839
2840  fail:
2841     av_freep(&bit_buffer);
2842
2843     if (ost_table) {
2844         for(i=0;i<nb_ostreams;i++) {
2845             ost = ost_table[i];
2846             if (ost) {
2847                 if (ost->st->stream_copy)
2848                     av_freep(&ost->st->codec->extradata);
2849                 if (ost->logfile) {
2850                     fclose(ost->logfile);
2851                     ost->logfile = NULL;
2852                 }
2853                 av_fifo_free(ost->fifo); /* works even if fifo is not
2854                                              initialized but set to zero */
2855                 av_freep(&ost->st->codec->subtitle_header);
2856                 av_free(ost->resample_frame.data[0]);
2857                 av_free(ost->forced_kf_pts);
2858                 if (ost->video_resample)
2859                     sws_freeContext(ost->img_resample_ctx);
2860                 if (ost->resample)
2861                     audio_resample_close(ost->resample);
2862                 if (ost->reformat_ctx)
2863                     av_audio_convert_free(ost->reformat_ctx);
2864                 av_free(ost);
2865             }
2866         }
2867         av_free(ost_table);
2868     }
2869     return ret;
2870 }
2871
2872 static int opt_format(const char *opt, const char *arg)
2873 {
2874     last_asked_format = arg;
2875     return 0;
2876 }
2877
2878 static int opt_video_rc_override_string(const char *opt, const char *arg)
2879 {
2880     video_rc_override_string = arg;
2881     return 0;
2882 }
2883
2884 static int opt_me_threshold(const char *opt, const char *arg)
2885 {
2886     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2887     return 0;
2888 }
2889
2890 static int opt_verbose(const char *opt, const char *arg)
2891 {
2892     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2893     return 0;
2894 }
2895
2896 static int opt_frame_rate(const char *opt, const char *arg)
2897 {
2898     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2899         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2900         ffmpeg_exit(1);
2901     }
2902     return 0;
2903 }
2904
2905 static int opt_bitrate(const char *opt, const char *arg)
2906 {
2907     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2908
2909     opt_default(opt, arg);
2910
2911     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2912         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2913
2914     return 0;
2915 }
2916
2917 static int opt_frame_crop(const char *opt, const char *arg)
2918 {
2919     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2920     return AVERROR(EINVAL);
2921 }
2922
2923 static int opt_frame_size(const char *opt, const char *arg)
2924 {
2925     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2926         fprintf(stderr, "Incorrect frame size\n");
2927         return AVERROR(EINVAL);
2928     }
2929     return 0;
2930 }
2931
2932 static int opt_pad(const char *opt, const char *arg) {
2933     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2934     return -1;
2935 }
2936
2937 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2938 {
2939     if (strcmp(arg, "list")) {
2940         frame_pix_fmt = av_get_pix_fmt(arg);
2941         if (frame_pix_fmt == PIX_FMT_NONE) {
2942             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2943             return AVERROR(EINVAL);
2944         }
2945     } else {
2946         opt_pix_fmts(NULL, NULL);
2947         ffmpeg_exit(0);
2948     }
2949     return 0;
2950 }
2951
2952 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2953 {
2954     int x = 0, y = 0;
2955     double ar = 0;
2956     const char *p;
2957     char *end;
2958
2959     p = strchr(arg, ':');
2960     if (p) {
2961         x = strtol(arg, &end, 10);
2962         if (end == p)
2963             y = strtol(end+1, &end, 10);
2964         if (x > 0 && y > 0)
2965             ar = (double)x / (double)y;
2966     } else
2967         ar = strtod(arg, NULL);
2968
2969     if (!ar) {
2970         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2971         return AVERROR(EINVAL);
2972     }
2973     frame_aspect_ratio = ar;
2974     return 0;
2975 }
2976
2977 static int opt_metadata(const char *opt, const char *arg)
2978 {
2979     char *mid= strchr(arg, '=');
2980
2981     if(!mid){
2982         fprintf(stderr, "Missing =\n");
2983         ffmpeg_exit(1);
2984     }
2985     *mid++= 0;
2986
2987     av_dict_set(&metadata, arg, mid, 0);
2988
2989     return 0;
2990 }
2991
2992 static int opt_qscale(const char *opt, const char *arg)
2993 {
2994     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2995     if (video_qscale <= 0 || video_qscale > 255) {
2996         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2997         return AVERROR(EINVAL);
2998     }
2999     return 0;
3000 }
3001
3002 static int opt_top_field_first(const char *opt, const char *arg)
3003 {
3004     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
3005     opt_default(opt, arg);
3006     return 0;
3007 }
3008
3009 static int opt_thread_count(const char *opt, const char *arg)
3010 {
3011     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3012 #if !HAVE_THREADS
3013     if (verbose >= 0)
3014         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3015 #endif
3016     return 0;
3017 }
3018
3019 static int opt_audio_sample_fmt(const char *opt, const char *arg)
3020 {
3021     if (strcmp(arg, "list")) {
3022         audio_sample_fmt = av_get_sample_fmt(arg);
3023         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
3024             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
3025             return AVERROR(EINVAL);
3026         }
3027     } else {
3028         int i;
3029         char fmt_str[128];
3030         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
3031             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
3032         ffmpeg_exit(0);
3033     }
3034     return 0;
3035 }
3036
3037 static int opt_audio_rate(const char *opt, const char *arg)
3038 {
3039     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3040     return 0;
3041 }
3042
3043 static int opt_audio_channels(const char *opt, const char *arg)
3044 {
3045     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3046     return 0;
3047 }
3048
3049 static int opt_video_channel(const char *opt, const char *arg)
3050 {
3051     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3052     return 0;
3053 }
3054
3055 static int opt_video_standard(const char *opt, const char *arg)
3056 {
3057     video_standard = av_strdup(arg);
3058     return 0;
3059 }
3060
3061 static int opt_codec(const char *opt, const char *arg)
3062 {
3063     int *pstream_copy; char **pcodec_name; enum AVMediaType codec_type;
3064
3065     if      (!strcmp(opt, "acodec")) { pstream_copy = &audio_stream_copy;    pcodec_name = &audio_codec_name;    codec_type = AVMEDIA_TYPE_AUDIO;    }
3066     else if (!strcmp(opt, "vcodec")) { pstream_copy = &video_stream_copy;    pcodec_name = &video_codec_name;    codec_type = AVMEDIA_TYPE_VIDEO;    }
3067     else if (!strcmp(opt, "scodec")) { pstream_copy = &subtitle_stream_copy; pcodec_name = &subtitle_codec_name; codec_type = AVMEDIA_TYPE_SUBTITLE; }
3068     else if (!strcmp(opt, "dcodec")) { pstream_copy = &data_stream_copy;     pcodec_name = &data_codec_name;     codec_type = AVMEDIA_TYPE_DATA;     }
3069
3070     av_freep(pcodec_name);
3071     if (!strcmp(arg, "copy")) {
3072         *pstream_copy = 1;
3073     } else {
3074         *pcodec_name = av_strdup(arg);
3075     }
3076     return 0;
3077 }
3078
3079 static int opt_codec_tag(const char *opt, const char *arg)
3080 {
3081     char *tail;
3082     uint32_t *codec_tag;
3083
3084     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3085                 !strcmp(opt, "vtag") ? &video_codec_tag :
3086                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3087     if (!codec_tag)
3088         return -1;
3089
3090     *codec_tag = strtol(arg, &tail, 0);
3091     if (!tail || *tail)
3092         *codec_tag = AV_RL32(arg);
3093
3094     return 0;
3095 }
3096
3097 static int opt_map(const char *opt, const char *arg)
3098 {
3099     AVStreamMap *m;
3100     char *p;
3101
3102     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3103     m = &stream_maps[nb_stream_maps-1];
3104
3105     m->file_index = strtol(arg, &p, 0);
3106     if (*p)
3107         p++;
3108
3109     m->stream_index = strtol(p, &p, 0);
3110     if (*p) {
3111         p++;
3112         m->sync_file_index = strtol(p, &p, 0);
3113         if (*p)
3114             p++;
3115         m->sync_stream_index = strtol(p, &p, 0);
3116     } else {
3117         m->sync_file_index = m->file_index;
3118         m->sync_stream_index = m->stream_index;
3119     }
3120     return 0;
3121 }
3122
3123 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3124 {
3125     *endptr = arg;
3126     if (*arg == ',') {
3127         *type = *(++arg);
3128         switch (*arg) {
3129         case 'g':
3130             break;
3131         case 's':
3132         case 'c':
3133         case 'p':
3134             *index = strtol(++arg, endptr, 0);
3135             break;
3136         default:
3137             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3138             ffmpeg_exit(1);
3139         }
3140     } else
3141         *type = 'g';
3142 }
3143
3144 static int opt_map_metadata(const char *opt, const char *arg)
3145 {
3146     AVMetaDataMap *m, *m1;
3147     char *p;
3148
3149     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3150                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3151
3152     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3153     m->file = strtol(arg, &p, 0);
3154     parse_meta_type(p, &m->type, &m->index, &p);
3155     if (*p)
3156         p++;
3157
3158     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3159     m1->file = strtol(p, &p, 0);
3160     parse_meta_type(p, &m1->type, &m1->index, &p);
3161
3162     if (m->type == 'g' || m1->type == 'g')
3163         metadata_global_autocopy = 0;
3164     if (m->type == 's' || m1->type == 's')
3165         metadata_streams_autocopy = 0;
3166     if (m->type == 'c' || m1->type == 'c')
3167         metadata_chapters_autocopy = 0;
3168
3169     return 0;
3170 }
3171
3172 static int opt_map_meta_data(const char *opt, const char *arg)
3173 {
3174     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3175                     "Use -map_metadata instead.\n");
3176     return opt_map_metadata(opt, arg);
3177 }
3178
3179 static int opt_map_chapters(const char *opt, const char *arg)
3180 {
3181     AVChapterMap *c;
3182     char *p;
3183
3184     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3185                               nb_chapter_maps + 1);
3186     c = &chapter_maps[nb_chapter_maps - 1];
3187     c->out_file = strtol(arg, &p, 0);
3188     if (*p)
3189         p++;
3190
3191     c->in_file = strtol(p, &p, 0);
3192     return 0;
3193 }
3194
3195 static int opt_input_ts_scale(const char *opt, const char *arg)
3196 {
3197     unsigned int stream;
3198     double scale;
3199     char *p;
3200
3201     stream = strtol(arg, &p, 0);
3202     if (*p)
3203         p++;
3204     scale= strtod(p, &p);
3205
3206     if(stream >= MAX_STREAMS)
3207         ffmpeg_exit(1);
3208
3209     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3210     input_files_ts_scale[nb_input_files][stream]= scale;
3211     return 0;
3212 }
3213
3214 static int opt_recording_time(const char *opt, const char *arg)
3215 {
3216     recording_time = parse_time_or_die(opt, arg, 1);
3217     return 0;
3218 }
3219
3220 static int opt_start_time(const char *opt, const char *arg)
3221 {
3222     start_time = parse_time_or_die(opt, arg, 1);
3223     return 0;
3224 }
3225
3226 static int opt_recording_timestamp(const char *opt, const char *arg)
3227 {
3228     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3229     return 0;
3230 }
3231
3232 static int opt_input_ts_offset(const char *opt, const char *arg)
3233 {
3234     input_ts_offset = parse_time_or_die(opt, arg, 1);
3235     return 0;
3236 }
3237
3238 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3239 {
3240     const char *codec_string = encoder ? "encoder" : "decoder";
3241     AVCodec *codec;
3242
3243     if(!name)
3244         return CODEC_ID_NONE;
3245     codec = encoder ?
3246         avcodec_find_encoder_by_name(name) :
3247         avcodec_find_decoder_by_name(name);
3248     if(!codec) {
3249         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3250         ffmpeg_exit(1);
3251     }
3252     if(codec->type != type) {
3253         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3254         ffmpeg_exit(1);
3255     }
3256     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3257        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3258         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3259                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3260                 codec_string, codec->name);
3261         codec = encoder ?
3262             avcodec_find_encoder(codec->id) :
3263             avcodec_find_decoder(codec->id);
3264         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3265             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3266                     codec_string, codec->name);
3267         ffmpeg_exit(1);
3268     }
3269     return codec->id;
3270 }
3271
3272 static int opt_input_file(const char *opt, const char *filename)
3273 {
3274     AVFormatContext *ic;
3275     AVFormatParameters params, *ap = &params;
3276     AVInputFormat *file_iformat = NULL;
3277     int err, i, ret, rfps, rfps_base;
3278     int64_t timestamp;
3279
3280     if (last_asked_format) {
3281         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3282             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3283             ffmpeg_exit(1);
3284         }
3285         last_asked_format = NULL;
3286     }
3287
3288     if (!strcmp(filename, "-"))
3289         filename = "pipe:";
3290
3291     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3292                     !strcmp(filename, "/dev/stdin");
3293
3294     /* get default parameters from command line */
3295     ic = avformat_alloc_context();
3296     if (!ic) {
3297         print_error(filename, AVERROR(ENOMEM));
3298         ffmpeg_exit(1);
3299     }
3300
3301     memset(ap, 0, sizeof(*ap));
3302     ap->prealloced_context = 1;
3303     ap->sample_rate = audio_sample_rate;
3304     ap->channels = audio_channels;
3305     ap->time_base.den = frame_rate.num;
3306     ap->time_base.num = frame_rate.den;
3307     ap->width = frame_width;
3308     ap->height = frame_height;
3309     ap->pix_fmt = frame_pix_fmt;
3310    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3311     ap->channel = video_channel;
3312     ap->standard = video_standard;
3313
3314     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3315
3316     ic->video_codec_id   =
3317         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3318                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3319     ic->audio_codec_id   =
3320         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3321                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3322     ic->subtitle_codec_id=
3323         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3324                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3325     ic->flags |= AVFMT_FLAG_NONBLOCK | AVFMT_FLAG_PRIV_OPT;
3326
3327     /* open the input file with generic libav function */
3328     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3329     if(err >= 0){
3330         set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3331         err = av_demuxer_open(ic, ap);
3332         if(err < 0)
3333             avformat_free_context(ic);
3334     }
3335     if (err < 0) {
3336         print_error(filename, err);
3337         ffmpeg_exit(1);
3338     }
3339     if(opt_programid) {
3340         int i, j;
3341         int found=0;
3342         for(i=0; i<ic->nb_streams; i++){
3343             ic->streams[i]->discard= AVDISCARD_ALL;
3344         }
3345         for(i=0; i<ic->nb_programs; i++){
3346             AVProgram *p= ic->programs[i];
3347             if(p->id != opt_programid){
3348                 p->discard = AVDISCARD_ALL;
3349             }else{
3350                 found=1;
3351                 for(j=0; j<p->nb_stream_indexes; j++){
3352                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3353                 }
3354             }
3355         }
3356         if(!found){
3357             fprintf(stderr, "Specified program id not found\n");
3358             ffmpeg_exit(1);
3359         }
3360         opt_programid=0;
3361     }
3362
3363     ic->loop_input = loop_input;
3364
3365     /* If not enough info to get the stream parameters, we decode the
3366        first frames to get it. (used in mpeg case for example) */
3367     ret = av_find_stream_info(ic);
3368     if (ret < 0 && verbose >= 0) {
3369         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3370         av_close_input_file(ic);
3371         ffmpeg_exit(1);
3372     }
3373
3374     timestamp = start_time;
3375     /* add the stream start time */
3376     if (ic->start_time != AV_NOPTS_VALUE)
3377         timestamp += ic->start_time;
3378
3379     /* if seeking requested, we execute it */
3380     if (start_time != 0) {
3381         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3382         if (ret < 0) {
3383             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3384                     filename, (double)timestamp / AV_TIME_BASE);
3385         }
3386         /* reset seek info */
3387         start_time = 0;
3388     }
3389
3390     /* update the current parameters so that they match the one of the input stream */
3391     for(i=0;i<ic->nb_streams;i++) {
3392         AVStream *st = ic->streams[i];
3393         AVCodecContext *dec = st->codec;
3394         AVInputStream *ist;
3395
3396         dec->thread_count = thread_count;
3397         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3398
3399         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3400         ist = &input_streams[nb_input_streams - 1];
3401         ist->st = st;
3402         ist->file_index = nb_input_files;
3403         ist->discard = 1;
3404
3405         switch (dec->codec_type) {
3406         case AVMEDIA_TYPE_AUDIO:
3407             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3408             if(!input_codecs[nb_input_codecs-1])
3409                 input_codecs[nb_input_codecs-1] = avcodec_find_decoder(dec->codec_id);
3410             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3411             channel_layout    = dec->channel_layout;
3412             audio_sample_fmt  = dec->sample_fmt;
3413             if(audio_disable)
3414                 st->discard= AVDISCARD_ALL;
3415             break;
3416         case AVMEDIA_TYPE_VIDEO:
3417             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3418             if(!input_codecs[nb_input_codecs-1])
3419                 input_codecs[nb_input_codecs-1] = avcodec_find_decoder(dec->codec_id);
3420             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3421             rfps      = ic->streams[i]->r_frame_rate.num;
3422             rfps_base = ic->streams[i]->r_frame_rate.den;
3423             if (dec->lowres) {
3424                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3425                 dec->height >>= dec->lowres;
3426                 dec->width  >>= dec->lowres;
3427             }
3428             if(me_threshold)
3429                 dec->debug |= FF_DEBUG_MV;
3430
3431             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3432
3433                 if (verbose >= 0)
3434                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3435                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3436
3437                     (float)rfps / rfps_base, rfps, rfps_base);
3438             }
3439
3440             if(video_disable)
3441                 st->discard= AVDISCARD_ALL;
3442             else if(video_discard)
3443                 st->discard= video_discard;
3444             break;
3445         case AVMEDIA_TYPE_DATA:
3446             break;
3447         case AVMEDIA_TYPE_SUBTITLE:
3448             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3449             if(!input_codecs[nb_input_codecs-1])
3450                 input_codecs[nb_input_codecs-1] = avcodec_find_decoder(dec->codec_id);
3451             if(subtitle_disable)
3452                 st->discard = AVDISCARD_ALL;
3453             break;
3454         case AVMEDIA_TYPE_ATTACHMENT:
3455         case AVMEDIA_TYPE_UNKNOWN:
3456             break;
3457         default:
3458             abort();
3459         }
3460     }
3461
3462     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3463     /* dump the file content */
3464     if (verbose >= 0)
3465         av_dump_format(ic, nb_input_files, filename, 0);
3466
3467     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3468     input_files[nb_input_files - 1].ctx        = ic;
3469     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3470
3471     top_field_first = -1;
3472     video_channel = 0;
3473     frame_rate    = (AVRational){0, 0};
3474     frame_pix_fmt = PIX_FMT_NONE;
3475     frame_height = 0;
3476     frame_width  = 0;
3477     audio_sample_rate = 0;
3478     audio_channels    = 0;
3479
3480     av_freep(&video_codec_name);
3481     av_freep(&audio_codec_name);
3482     av_freep(&subtitle_codec_name);
3483     uninit_opts();
3484     init_opts();
3485     return 0;
3486 }
3487
3488 static void check_inputs(int *has_video_ptr,
3489                          int *has_audio_ptr,
3490                          int *has_subtitle_ptr,
3491                          int *has_data_ptr)
3492 {
3493     int has_video, has_audio, has_subtitle, has_data, i, j;
3494     AVFormatContext *ic;
3495
3496     has_video = 0;
3497     has_audio = 0;
3498     has_subtitle = 0;
3499     has_data = 0;
3500
3501     for(j=0;j<nb_input_files;j++) {
3502         ic = input_files[j].ctx;
3503         for(i=0;i<ic->nb_streams;i++) {
3504             AVCodecContext *enc = ic->streams[i]->codec;
3505             switch(enc->codec_type) {
3506             case AVMEDIA_TYPE_AUDIO:
3507                 has_audio = 1;
3508                 break;
3509             case AVMEDIA_TYPE_VIDEO:
3510                 has_video = 1;
3511                 break;
3512             case AVMEDIA_TYPE_SUBTITLE:
3513                 has_subtitle = 1;
3514                 break;
3515             case AVMEDIA_TYPE_DATA:
3516             case AVMEDIA_TYPE_ATTACHMENT:
3517             case AVMEDIA_TYPE_UNKNOWN:
3518                 has_data = 1;
3519                 break;
3520             default:
3521                 abort();
3522             }
3523         }
3524     }
3525     *has_video_ptr = has_video;
3526     *has_audio_ptr = has_audio;
3527     *has_subtitle_ptr = has_subtitle;
3528     *has_data_ptr = has_data;
3529 }
3530
3531 static void new_video_stream(AVFormatContext *oc, int file_idx)
3532 {
3533     AVStream *st;
3534     AVOutputStream *ost;
3535     AVCodecContext *video_enc;
3536     enum CodecID codec_id = CODEC_ID_NONE;
3537     AVCodec *codec= NULL;
3538
3539     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3540     if (!st) {
3541         fprintf(stderr, "Could not alloc stream\n");
3542         ffmpeg_exit(1);
3543     }
3544     ost = new_output_stream(oc, file_idx);
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             ost->enc = codec;
3552         } else {
3553             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3554             codec = avcodec_find_encoder(codec_id);
3555         }
3556         ost->frame_aspect_ratio = frame_aspect_ratio;
3557         frame_aspect_ratio = 0;
3558 #if CONFIG_AVFILTER
3559         ost->avfilter = vfilters;
3560         vfilters = NULL;
3561 #endif
3562     }
3563
3564     avcodec_get_context_defaults3(st->codec, codec);
3565     ost->bitstream_filters = video_bitstream_filters;
3566     video_bitstream_filters= NULL;
3567
3568     st->codec->thread_count= thread_count;
3569
3570     video_enc = st->codec;
3571
3572     if(video_codec_tag)
3573         video_enc->codec_tag= video_codec_tag;
3574
3575     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3576         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3577         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3578     }
3579
3580     if (video_stream_copy) {
3581         st->stream_copy = 1;
3582         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3583         video_enc->sample_aspect_ratio =
3584         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3585     } else {
3586         const char *p;
3587         int i;
3588
3589         if (frame_rate.num)
3590             ost->frame_rate = frame_rate;
3591         video_enc->codec_id = codec_id;
3592         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3593
3594         video_enc->width = frame_width;
3595         video_enc->height = frame_height;
3596         video_enc->pix_fmt = frame_pix_fmt;
3597         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3598         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3599
3600         if (intra_only)
3601             video_enc->gop_size = 0;
3602         if (video_qscale || same_quality) {
3603             video_enc->flags |= CODEC_FLAG_QSCALE;
3604             video_enc->global_quality=
3605                 st->quality = FF_QP2LAMBDA * video_qscale;
3606         }
3607
3608         if(intra_matrix)
3609             video_enc->intra_matrix = intra_matrix;
3610         if(inter_matrix)
3611             video_enc->inter_matrix = inter_matrix;
3612
3613         p= video_rc_override_string;
3614         for(i=0; p; i++){
3615             int start, end, q;
3616             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3617             if(e!=3){
3618                 fprintf(stderr, "error parsing rc_override\n");
3619                 ffmpeg_exit(1);
3620             }
3621             video_enc->rc_override=
3622                 av_realloc(video_enc->rc_override,
3623                            sizeof(RcOverride)*(i+1));
3624             video_enc->rc_override[i].start_frame= start;
3625             video_enc->rc_override[i].end_frame  = end;