Merge remote 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 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #include "libavformat/ffm.h" // not public API
51
52 #if CONFIG_AVFILTER
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.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 AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
126
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
131
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
134
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy   = 1;
139 static int metadata_streams_autocopy  = 1;
140 static int metadata_chapters_autocopy = 1;
141
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
144
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
148
149 static int frame_width  = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static int frame_bits_per_raw_sample = 0;
154 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
155 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
156 static AVRational frame_rate;
157 static float video_qscale = 0;
158 static uint16_t *intra_matrix = NULL;
159 static uint16_t *inter_matrix = NULL;
160 static const char *video_rc_override_string=NULL;
161 static int video_disable = 0;
162 static int video_discard = 0;
163 static char *video_codec_name = NULL;
164 static unsigned int video_codec_tag = 0;
165 static char *video_language = NULL;
166 static int same_quality = 0;
167 static int do_deinterlace = 0;
168 static int top_field_first = -1;
169 static int me_threshold = 0;
170 static int intra_dc_precision = 8;
171 static int loop_input = 0;
172 static int loop_output = AVFMT_NOOUTPUTLOOP;
173 static int qp_hist = 0;
174 #if CONFIG_AVFILTER
175 static char *vfilters = NULL;
176 #else
177 static unsigned int sws_flags = SWS_BICUBIC;
178 #endif
179
180 static int intra_only = 0;
181 static int audio_sample_rate = 44100;
182 static int64_t channel_layout = 0;
183 #define QSCALE_NONE -99999
184 static float audio_qscale = QSCALE_NONE;
185 static int audio_disable = 0;
186 static int audio_channels = 1;
187 static char  *audio_codec_name = NULL;
188 static unsigned int audio_codec_tag = 0;
189 static char *audio_language = NULL;
190
191 static int subtitle_disable = 0;
192 static char *subtitle_codec_name = NULL;
193 static char *subtitle_language = NULL;
194 static unsigned int subtitle_codec_tag = 0;
195
196 static float mux_preload= 0.5;
197 static float mux_max_delay= 0.7;
198
199 static int64_t recording_time = INT64_MAX;
200 static int64_t start_time = 0;
201 static int64_t recording_timestamp = 0;
202 static int64_t input_ts_offset = 0;
203 static int file_overwrite = 0;
204 static AVMetadata *metadata;
205 static int do_benchmark = 0;
206 static int do_hex_dump = 0;
207 static int do_pkt_dump = 0;
208 static int do_psnr = 0;
209 static int do_pass = 0;
210 static const char *pass_logfilename_prefix;
211 static int audio_stream_copy = 0;
212 static int video_stream_copy = 0;
213 static int subtitle_stream_copy = 0;
214 static int video_sync_method= -1;
215 static int audio_sync_method= 0;
216 static float audio_drift_threshold= 0.1;
217 static int copy_ts= 0;
218 static int copy_tb;
219 static int opt_shortest = 0;
220 static int video_global_header = 0;
221 static char *vstats_filename;
222 static FILE *vstats_file;
223 static int opt_programid = 0;
224 static int copy_initial_nonkeyframes = 0;
225
226 static int rate_emu = 0;
227
228 static int  video_channel = 0;
229 static char *video_standard;
230
231 static int audio_volume = 256;
232
233 static int exit_on_error = 0;
234 static int using_stdin = 0;
235 static int verbose = 1;
236 static int daemon  = 0;
237 static int thread_count= 1;
238 static int q_pressed = 0;
239 static int64_t video_size = 0;
240 static int64_t audio_size = 0;
241 static int64_t extra_size = 0;
242 static int nb_frames_dup = 0;
243 static int nb_frames_drop = 0;
244 static int input_sync;
245 static uint64_t limit_filesize = 0;
246 static int force_fps = 0;
247 static char *forced_key_frames = NULL;
248
249 static float dts_delta_threshold = 10;
250
251 static int64_t timer_start;
252
253 static uint8_t *audio_buf;
254 static uint8_t *audio_out;
255 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
256
257 static short *samples;
258
259 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
261 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
262
263 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
264
265 struct AVInputStream;
266
267 typedef struct AVOutputStream {
268     int file_index;          /* file index */
269     int index;               /* stream index in the output file */
270     int source_index;        /* AVInputStream index */
271     AVStream *st;            /* stream in the output file */
272     int encoding_needed;     /* true if encoding needed for this stream */
273     int frame_number;
274     /* input pts and corresponding output pts
275        for A/V sync */
276     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
277     struct AVInputStream *sync_ist; /* input stream to sync against */
278     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
279     AVBitStreamFilterContext *bitstream_filters;
280     /* video only */
281     int video_resample;
282     AVFrame pict_tmp;      /* temporary image for resampling */
283     struct SwsContext *img_resample_ctx; /* for image resampling */
284     int resample_height;
285     int resample_width;
286     int resample_pix_fmt;
287
288     float frame_aspect_ratio;
289
290     /* forced key frames */
291     int64_t *forced_kf_pts;
292     int forced_kf_count;
293     int forced_kf_index;
294
295     /* audio only */
296     int audio_resample;
297     ReSampleContext *resample; /* for audio resampling */
298     int resample_sample_fmt;
299     int resample_channels;
300     int resample_sample_rate;
301     int reformat_pair;
302     AVAudioConvert *reformat_ctx;
303     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
304     FILE *logfile;
305
306 #if CONFIG_AVFILTER
307     AVFilterContext *output_video_filter;
308     AVFilterContext *input_video_filter;
309     AVFilterBufferRef *picref;
310     char *avfilter;
311     AVFilterGraph *graph;
312 #endif
313 } AVOutputStream;
314
315 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
316 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
317
318 typedef struct AVInputStream {
319     int file_index;
320     int index;
321     AVStream *st;
322     int discard;             /* true if stream data should be discarded */
323     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
324     int64_t sample_index;      /* current sample */
325
326     int64_t       start;     /* time when read started */
327     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
328                                 is not defined */
329     int64_t       pts;       /* current pts */
330     int is_start;            /* is 1 at the start and after a discontinuity */
331     int showed_multi_packet_warning;
332     int is_past_recording_time;
333 #if CONFIG_AVFILTER
334     AVFrame *filter_frame;
335     int has_filter_frame;
336 #endif
337 } AVInputStream;
338
339 typedef struct AVInputFile {
340     int eof_reached;      /* true if eof reached */
341     int ist_index;        /* index of first stream in ist_table */
342     int buffer_size;      /* current total buffer size */
343     int nb_streams;       /* nb streams we are aware of */
344 } AVInputFile;
345
346 #if HAVE_TERMIOS_H
347
348 /* init terminal so that we can grab keys */
349 static struct termios oldtty;
350 #endif
351
352 #if CONFIG_AVFILTER
353
354 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
355 {
356     AVFilterContext *last_filter, *filter;
357     /** filter graph containing all filters including input & output */
358     AVCodecContext *codec = ost->st->codec;
359     AVCodecContext *icodec = ist->st->codec;
360     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
361     AVRational sample_aspect_ratio;
362     char args[255];
363     int ret;
364
365     ost->graph = avfilter_graph_alloc();
366
367     if (ist->st->sample_aspect_ratio.num){
368         sample_aspect_ratio = ist->st->sample_aspect_ratio;
369     }else
370         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
371
372     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
373              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
374              sample_aspect_ratio.num, sample_aspect_ratio.den);
375
376     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
377                                        "src", args, NULL, ost->graph);
378     if (ret < 0)
379         return ret;
380     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
381                                        "out", NULL, &ffsink_ctx, ost->graph);
382     if (ret < 0)
383         return ret;
384     last_filter = ost->input_video_filter;
385
386     if (codec->width  != icodec->width || codec->height != icodec->height) {
387         snprintf(args, 255, "%d:%d:flags=0x%X",
388                  codec->width,
389                  codec->height,
390                  (int)av_get_int(sws_opts, "sws_flags", NULL));
391         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
392                                                 NULL, args, NULL, ost->graph)) < 0)
393             return ret;
394         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
395             return ret;
396         last_filter = filter;
397     }
398
399     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
400     ost->graph->scale_sws_opts = av_strdup(args);
401
402     if (ost->avfilter) {
403         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
404         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
405
406         outputs->name    = av_strdup("in");
407         outputs->filter_ctx = last_filter;
408         outputs->pad_idx = 0;
409         outputs->next    = NULL;
410
411         inputs->name    = av_strdup("out");
412         inputs->filter_ctx = ost->output_video_filter;
413         inputs->pad_idx = 0;
414         inputs->next    = NULL;
415
416         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
417             return ret;
418         av_freep(&ost->avfilter);
419     } else {
420         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
421             return ret;
422     }
423
424     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
425         return ret;
426
427     codec->width  = ost->output_video_filter->inputs[0]->w;
428     codec->height = ost->output_video_filter->inputs[0]->h;
429     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
430         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
431         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
432         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
433
434     return 0;
435 }
436 #endif /* CONFIG_AVFILTER */
437
438 static void term_exit(void)
439 {
440     av_log(NULL, AV_LOG_QUIET, "");
441 #if HAVE_TERMIOS_H
442     if(!daemon)
443         tcsetattr (0, TCSANOW, &oldtty);
444 #endif
445 }
446
447 static volatile int received_sigterm = 0;
448
449 static void
450 sigterm_handler(int sig)
451 {
452     received_sigterm = sig;
453     q_pressed++;
454     term_exit();
455 }
456
457 static void term_init(void)
458 {
459 #if HAVE_TERMIOS_H
460     if(!daemon){
461     struct termios tty;
462
463     tcgetattr (0, &tty);
464     oldtty = tty;
465     atexit(term_exit);
466
467     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
468                           |INLCR|IGNCR|ICRNL|IXON);
469     tty.c_oflag |= OPOST;
470     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
471     tty.c_cflag &= ~(CSIZE|PARENB);
472     tty.c_cflag |= CS8;
473     tty.c_cc[VMIN] = 1;
474     tty.c_cc[VTIME] = 0;
475
476     tcsetattr (0, TCSANOW, &tty);
477     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
478     }
479 #endif
480
481     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
482     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
483 #ifdef SIGXCPU
484     signal(SIGXCPU, sigterm_handler);
485 #endif
486 }
487
488 /* read a key without blocking */
489 static int read_key(void)
490 {
491 #if HAVE_TERMIOS_H
492     int n = 1;
493     unsigned char ch;
494     struct timeval tv;
495     fd_set rfds;
496
497     if(daemon)
498         return -1;
499
500     FD_ZERO(&rfds);
501     FD_SET(0, &rfds);
502     tv.tv_sec = 0;
503     tv.tv_usec = 0;
504     n = select(1, &rfds, NULL, NULL, &tv);
505     if (n > 0) {
506         n = read(0, &ch, 1);
507         if (n == 1)
508             return ch;
509
510         return n;
511     }
512 #elif HAVE_KBHIT
513     if(kbhit())
514         return(getch());
515 #endif
516     return -1;
517 }
518
519 static int decode_interrupt_cb(void)
520 {
521     q_pressed += read_key() == 'q';
522     return q_pressed > 1;
523 }
524
525 static int ffmpeg_exit(int ret)
526 {
527     int i;
528
529     /* close files */
530     for(i=0;i<nb_output_files;i++) {
531         AVFormatContext *s = output_files[i];
532         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
533             avio_close(s->pb);
534         avformat_free_context(s);
535         av_free(output_streams_for_file[i]);
536     }
537     for(i=0;i<nb_input_files;i++) {
538         av_close_input_file(input_files[i]);
539         av_free(input_files_ts_scale[i]);
540     }
541
542     av_free(intra_matrix);
543     av_free(inter_matrix);
544
545     if (vstats_file)
546         fclose(vstats_file);
547     av_free(vstats_filename);
548
549     av_free(streamid_map);
550     av_free(input_codecs);
551     av_free(output_codecs);
552     av_free(stream_maps);
553     av_free(meta_data_maps);
554
555     av_free(video_codec_name);
556     av_free(audio_codec_name);
557     av_free(subtitle_codec_name);
558
559     av_free(video_standard);
560
561     uninit_opts();
562     av_free(audio_buf);
563     av_free(audio_out);
564     allocated_audio_buf_size= allocated_audio_out_size= 0;
565     av_free(samples);
566
567 #if CONFIG_AVFILTER
568     avfilter_uninit();
569 #endif
570
571     if (received_sigterm) {
572         fprintf(stderr,
573             "Received signal %d: terminating.\n",
574             (int) received_sigterm);
575         exit (255);
576     }
577
578     exit(ret); /* not all OS-es handle main() return value */
579     return ret;
580 }
581
582 /* similar to ff_dynarray_add() and av_fast_realloc() */
583 static void *grow_array(void *array, int elem_size, int *size, int new_size)
584 {
585     if (new_size >= INT_MAX / elem_size) {
586         fprintf(stderr, "Array too big.\n");
587         ffmpeg_exit(1);
588     }
589     if (*size < new_size) {
590         uint8_t *tmp = av_realloc(array, new_size*elem_size);
591         if (!tmp) {
592             fprintf(stderr, "Could not alloc buffer.\n");
593             ffmpeg_exit(1);
594         }
595         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
596         *size = new_size;
597         return tmp;
598     }
599     return array;
600 }
601
602 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
603 {
604     if(codec && codec->sample_fmts){
605         const enum AVSampleFormat *p= codec->sample_fmts;
606         for(; *p!=-1; p++){
607             if(*p == st->codec->sample_fmt)
608                 break;
609         }
610         if (*p == -1) {
611             av_log(NULL, AV_LOG_WARNING,
612                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
613                    av_get_sample_fmt_name(st->codec->sample_fmt),
614                    codec->name,
615                    av_get_sample_fmt_name(codec->sample_fmts[0]));
616             st->codec->sample_fmt = codec->sample_fmts[0];
617         }
618     }
619 }
620
621 static void choose_sample_rate(AVStream *st, AVCodec *codec)
622 {
623     if(codec && codec->supported_samplerates){
624         const int *p= codec->supported_samplerates;
625         int best=0;
626         int best_dist=INT_MAX;
627         for(; *p; p++){
628             int dist= abs(st->codec->sample_rate - *p);
629             if(dist < best_dist){
630                 best_dist= dist;
631                 best= *p;
632             }
633         }
634         if(best_dist){
635             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
636         }
637         st->codec->sample_rate= best;
638     }
639 }
640
641 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
642 {
643     if(codec && codec->pix_fmts){
644         const enum PixelFormat *p= codec->pix_fmts;
645         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
646             if(st->codec->codec_id==CODEC_ID_MJPEG){
647                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
648             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
649                 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};
650             }
651         }
652         for(; *p!=-1; p++){
653             if(*p == st->codec->pix_fmt)
654                 break;
655         }
656         if (*p == -1) {
657             if(st->codec->pix_fmt != PIX_FMT_NONE)
658             av_log(NULL, AV_LOG_WARNING,
659                    "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
660                    av_pix_fmt_descriptors[st->codec->pix_fmt].name,
661                    codec->name,
662                    av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
663             st->codec->pix_fmt = codec->pix_fmts[0];
664         }
665     }
666 }
667
668 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
669 {
670     int idx = oc->nb_streams - 1;
671     AVOutputStream *ost;
672
673     output_streams_for_file[file_idx] =
674         grow_array(output_streams_for_file[file_idx],
675                    sizeof(*output_streams_for_file[file_idx]),
676                    &nb_output_streams_for_file[file_idx],
677                    oc->nb_streams);
678     ost = output_streams_for_file[file_idx][idx] =
679         av_mallocz(sizeof(AVOutputStream));
680     if (!ost) {
681         fprintf(stderr, "Could not alloc output stream\n");
682         ffmpeg_exit(1);
683     }
684     ost->file_index = file_idx;
685     ost->index = idx;
686     return ost;
687 }
688
689 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
690 {
691     int i, err;
692     AVFormatContext *ic;
693     int nopts = 0;
694
695     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
696     if (err < 0)
697         return err;
698     /* copy stream format */
699     s->nb_streams = 0;
700     for(i=0;i<ic->nb_streams;i++) {
701         AVStream *st;
702         AVCodec *codec;
703
704         s->nb_streams++;
705
706         // FIXME: a more elegant solution is needed
707         st = av_mallocz(sizeof(AVStream));
708         memcpy(st, ic->streams[i], sizeof(AVStream));
709         st->codec = avcodec_alloc_context();
710         if (!st->codec) {
711             print_error(filename, AVERROR(ENOMEM));
712             ffmpeg_exit(1);
713         }
714         avcodec_copy_context(st->codec, ic->streams[i]->codec);
715         s->streams[i] = st;
716
717         codec = avcodec_find_encoder(st->codec->codec_id);
718         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
719             if (audio_stream_copy) {
720                 st->stream_copy = 1;
721             } else
722                 choose_sample_fmt(st, codec);
723         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
724             if (video_stream_copy) {
725                 st->stream_copy = 1;
726             } else
727                 choose_pixel_fmt(st, codec);
728         }
729
730         if(st->codec->flags & CODEC_FLAG_BITEXACT)
731             nopts = 1;
732
733         new_output_stream(s, nb_output_files);
734     }
735
736     if (!nopts)
737         s->timestamp = av_gettime();
738
739     av_close_input_file(ic);
740     return 0;
741 }
742
743 static double
744 get_sync_ipts(const AVOutputStream *ost)
745 {
746     const AVInputStream *ist = ost->sync_ist;
747     return (double)(ist->pts - start_time)/AV_TIME_BASE;
748 }
749
750 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
751     int ret;
752
753     while(bsfc){
754         AVPacket new_pkt= *pkt;
755         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
756                                           &new_pkt.data, &new_pkt.size,
757                                           pkt->data, pkt->size,
758                                           pkt->flags & AV_PKT_FLAG_KEY);
759         if(a>0){
760             av_free_packet(pkt);
761             new_pkt.destruct= av_destruct_packet;
762         } else if(a<0){
763             fprintf(stderr, "%s failed for stream %d, codec %s",
764                     bsfc->filter->name, pkt->stream_index,
765                     avctx->codec ? avctx->codec->name : "copy");
766             print_error("", a);
767             if (exit_on_error)
768                 ffmpeg_exit(1);
769         }
770         *pkt= new_pkt;
771
772         bsfc= bsfc->next;
773     }
774
775     ret= av_interleaved_write_frame(s, pkt);
776     if(ret < 0){
777         print_error("av_interleaved_write_frame()", ret);
778         ffmpeg_exit(1);
779     }
780 }
781
782 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
783
784 static void do_audio_out(AVFormatContext *s,
785                          AVOutputStream *ost,
786                          AVInputStream *ist,
787                          unsigned char *buf, int size)
788 {
789     uint8_t *buftmp;
790     int64_t audio_out_size, audio_buf_size;
791     int64_t allocated_for_size= size;
792
793     int size_out, frame_bytes, ret, resample_changed;
794     AVCodecContext *enc= ost->st->codec;
795     AVCodecContext *dec= ist->st->codec;
796     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
797     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
798     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
799
800 need_realloc:
801     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
802     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
803     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
804     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
805     audio_buf_size*= osize*enc->channels;
806
807     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
808     if(coded_bps > 8*osize)
809         audio_out_size= audio_out_size * coded_bps / (8*osize);
810     audio_out_size += FF_MIN_BUFFER_SIZE;
811
812     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
813         fprintf(stderr, "Buffer sizes too large\n");
814         ffmpeg_exit(1);
815     }
816
817     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
818     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
819     if (!audio_buf || !audio_out){
820         fprintf(stderr, "Out of memory in do_audio_out\n");
821         ffmpeg_exit(1);
822     }
823
824     if (enc->channels != dec->channels)
825         ost->audio_resample = 1;
826
827     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
828                        ost->resample_channels    != dec->channels   ||
829                        ost->resample_sample_rate != dec->sample_rate;
830
831     if ((ost->audio_resample && !ost->resample) || resample_changed) {
832         if (resample_changed) {
833             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",
834                    ist->file_index, ist->index,
835                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
836                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
837             ost->resample_sample_fmt  = dec->sample_fmt;
838             ost->resample_channels    = dec->channels;
839             ost->resample_sample_rate = dec->sample_rate;
840             if (ost->resample)
841                 audio_resample_close(ost->resample);
842         }
843         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
844         if (audio_sync_method <= 1 &&
845             ost->resample_sample_fmt  == enc->sample_fmt &&
846             ost->resample_channels    == enc->channels   &&
847             ost->resample_sample_rate == enc->sample_rate) {
848             ost->resample = NULL;
849             ost->audio_resample = 0;
850         } else {
851             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
852                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
853             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
854                                                    enc->sample_rate, dec->sample_rate,
855                                                    enc->sample_fmt,  dec->sample_fmt,
856                                                    16, 10, 0, 0.8);
857             if (!ost->resample) {
858                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
859                         dec->channels, dec->sample_rate,
860                         enc->channels, enc->sample_rate);
861                 ffmpeg_exit(1);
862             }
863         }
864     }
865
866 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
867     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
868         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
869         if (ost->reformat_ctx)
870             av_audio_convert_free(ost->reformat_ctx);
871         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
872                                                    dec->sample_fmt, 1, NULL, 0);
873         if (!ost->reformat_ctx) {
874             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
875                 av_get_sample_fmt_name(dec->sample_fmt),
876                 av_get_sample_fmt_name(enc->sample_fmt));
877             ffmpeg_exit(1);
878         }
879         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
880     }
881
882     if(audio_sync_method){
883         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
884                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
885         double idelta= delta*dec->sample_rate / enc->sample_rate;
886         int byte_delta= ((int)idelta)*2*dec->channels;
887
888         //FIXME resample delay
889         if(fabs(delta) > 50){
890             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
891                 if(byte_delta < 0){
892                     byte_delta= FFMAX(byte_delta, -size);
893                     size += byte_delta;
894                     buf  -= byte_delta;
895                     if(verbose > 2)
896                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
897                     if(!size)
898                         return;
899                     ist->is_start=0;
900                 }else{
901                     static uint8_t *input_tmp= NULL;
902                     input_tmp= av_realloc(input_tmp, byte_delta + size);
903
904                     if(byte_delta > allocated_for_size - size){
905                         allocated_for_size= byte_delta + (int64_t)size;
906                         goto need_realloc;
907                     }
908                     ist->is_start=0;
909
910                     memset(input_tmp, 0, byte_delta);
911                     memcpy(input_tmp + byte_delta, buf, size);
912                     buf= input_tmp;
913                     size += byte_delta;
914                     if(verbose > 2)
915                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
916                 }
917             }else if(audio_sync_method>1){
918                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
919                 av_assert0(ost->audio_resample);
920                 if(verbose > 2)
921                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
922 //                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));
923                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
924             }
925         }
926     }else
927         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
928                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
929
930     if (ost->audio_resample) {
931         buftmp = audio_buf;
932         size_out = audio_resample(ost->resample,
933                                   (short *)buftmp, (short *)buf,
934                                   size / (dec->channels * isize));
935         size_out = size_out * enc->channels * osize;
936     } else {
937         buftmp = buf;
938         size_out = size;
939     }
940
941     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
942         const void *ibuf[6]= {buftmp};
943         void *obuf[6]= {audio_buf};
944         int istride[6]= {isize};
945         int ostride[6]= {osize};
946         int len= size_out/istride[0];
947         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
948             printf("av_audio_convert() failed\n");
949             if (exit_on_error)
950                 ffmpeg_exit(1);
951             return;
952         }
953         buftmp = audio_buf;
954         size_out = len*osize;
955     }
956
957     /* now encode as many frames as possible */
958     if (enc->frame_size > 1) {
959         /* output resampled raw samples */
960         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
961             fprintf(stderr, "av_fifo_realloc2() failed\n");
962             ffmpeg_exit(1);
963         }
964         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
965
966         frame_bytes = enc->frame_size * osize * enc->channels;
967
968         while (av_fifo_size(ost->fifo) >= frame_bytes) {
969             AVPacket pkt;
970             av_init_packet(&pkt);
971
972             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
973
974             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
975
976             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
977                                        (short *)audio_buf);
978             if (ret < 0) {
979                 fprintf(stderr, "Audio encoding failed\n");
980                 ffmpeg_exit(1);
981             }
982             audio_size += ret;
983             pkt.stream_index= ost->index;
984             pkt.data= audio_out;
985             pkt.size= ret;
986             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
987                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
988             pkt.flags |= AV_PKT_FLAG_KEY;
989             write_frame(s, &pkt, enc, ost->bitstream_filters);
990
991             ost->sync_opts += enc->frame_size;
992         }
993     } else {
994         AVPacket pkt;
995         av_init_packet(&pkt);
996
997         ost->sync_opts += size_out / (osize * enc->channels);
998
999         /* output a pcm frame */
1000         /* determine the size of the coded buffer */
1001         size_out /= osize;
1002         if (coded_bps)
1003             size_out = size_out*coded_bps/8;
1004
1005         if(size_out > audio_out_size){
1006             fprintf(stderr, "Internal error, buffer size too small\n");
1007             ffmpeg_exit(1);
1008         }
1009
1010         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1011         ret = avcodec_encode_audio(enc, audio_out, size_out,
1012                                    (short *)buftmp);
1013         if (ret < 0) {
1014             fprintf(stderr, "Audio encoding failed\n");
1015             ffmpeg_exit(1);
1016         }
1017         audio_size += ret;
1018         pkt.stream_index= ost->index;
1019         pkt.data= audio_out;
1020         pkt.size= ret;
1021         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1022             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1023         pkt.flags |= AV_PKT_FLAG_KEY;
1024         write_frame(s, &pkt, enc, ost->bitstream_filters);
1025     }
1026 }
1027
1028 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1029 {
1030     AVCodecContext *dec;
1031     AVPicture *picture2;
1032     AVPicture picture_tmp;
1033     uint8_t *buf = 0;
1034
1035     dec = ist->st->codec;
1036
1037     /* deinterlace : must be done before any resize */
1038     if (do_deinterlace) {
1039         int size;
1040
1041         /* create temporary picture */
1042         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1043         buf = av_malloc(size);
1044         if (!buf)
1045             return;
1046
1047         picture2 = &picture_tmp;
1048         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1049
1050         if(avpicture_deinterlace(picture2, picture,
1051                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1052             /* if error, do not deinterlace */
1053             fprintf(stderr, "Deinterlacing failed\n");
1054             av_free(buf);
1055             buf = NULL;
1056             picture2 = picture;
1057         }
1058     } else {
1059         picture2 = picture;
1060     }
1061
1062     if (picture != picture2)
1063         *picture = *picture2;
1064     *bufp = buf;
1065 }
1066
1067 /* we begin to correct av delay at this threshold */
1068 #define AV_DELAY_MAX 0.100
1069
1070 static void do_subtitle_out(AVFormatContext *s,
1071                             AVOutputStream *ost,
1072                             AVInputStream *ist,
1073                             AVSubtitle *sub,
1074                             int64_t pts)
1075 {
1076     static uint8_t *subtitle_out = NULL;
1077     int subtitle_out_max_size = 1024 * 1024;
1078     int subtitle_out_size, nb, i;
1079     AVCodecContext *enc;
1080     AVPacket pkt;
1081
1082     if (pts == AV_NOPTS_VALUE) {
1083         fprintf(stderr, "Subtitle packets must have a pts\n");
1084         if (exit_on_error)
1085             ffmpeg_exit(1);
1086         return;
1087     }
1088
1089     enc = ost->st->codec;
1090
1091     if (!subtitle_out) {
1092         subtitle_out = av_malloc(subtitle_out_max_size);
1093     }
1094
1095     /* Note: DVB subtitle need one packet to draw them and one other
1096        packet to clear them */
1097     /* XXX: signal it in the codec context ? */
1098     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1099         nb = 2;
1100     else
1101         nb = 1;
1102
1103     for(i = 0; i < nb; i++) {
1104         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1105         // start_display_time is required to be 0
1106         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1107         sub->end_display_time -= sub->start_display_time;
1108         sub->start_display_time = 0;
1109         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1110                                                     subtitle_out_max_size, sub);
1111         if (subtitle_out_size < 0) {
1112             fprintf(stderr, "Subtitle encoding failed\n");
1113             ffmpeg_exit(1);
1114         }
1115
1116         av_init_packet(&pkt);
1117         pkt.stream_index = ost->index;
1118         pkt.data = subtitle_out;
1119         pkt.size = subtitle_out_size;
1120         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1121         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1122             /* XXX: the pts correction is handled here. Maybe handling
1123                it in the codec would be better */
1124             if (i == 0)
1125                 pkt.pts += 90 * sub->start_display_time;
1126             else
1127                 pkt.pts += 90 * sub->end_display_time;
1128         }
1129         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1130     }
1131 }
1132
1133 static int bit_buffer_size= 1024*256;
1134 static uint8_t *bit_buffer= NULL;
1135
1136 static void do_video_out(AVFormatContext *s,
1137                          AVOutputStream *ost,
1138                          AVInputStream *ist,
1139                          AVFrame *in_picture,
1140                          int *frame_size)
1141 {
1142     int nb_frames, i, ret, resample_changed;
1143     AVFrame *final_picture, *formatted_picture, *resampling_dst;
1144     AVCodecContext *enc, *dec;
1145     double sync_ipts;
1146
1147     enc = ost->st->codec;
1148     dec = ist->st->codec;
1149
1150     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1151
1152     /* by default, we output a single frame */
1153     nb_frames = 1;
1154
1155     *frame_size = 0;
1156
1157     if(video_sync_method){
1158         double vdelta = sync_ipts - ost->sync_opts;
1159         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1160         if (vdelta < -1.1)
1161             nb_frames = 0;
1162         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1163             if(vdelta<=-0.6){
1164                 nb_frames=0;
1165             }else if(vdelta>0.6)
1166                 ost->sync_opts= lrintf(sync_ipts);
1167         }else if (vdelta > 1.1)
1168             nb_frames = lrintf(vdelta);
1169 //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);
1170         if (nb_frames == 0){
1171             ++nb_frames_drop;
1172             if (verbose>2)
1173                 fprintf(stderr, "*** drop!\n");
1174         }else if (nb_frames > 1) {
1175             nb_frames_dup += nb_frames - 1;
1176             if (verbose>2)
1177                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1178         }
1179     }else
1180         ost->sync_opts= lrintf(sync_ipts);
1181
1182     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1183     if (nb_frames <= 0)
1184         return;
1185
1186     formatted_picture = in_picture;
1187     final_picture = formatted_picture;
1188     resampling_dst = &ost->pict_tmp;
1189
1190     resample_changed = ost->resample_width   != dec->width  ||
1191                        ost->resample_height  != dec->height ||
1192                        ost->resample_pix_fmt != dec->pix_fmt;
1193
1194     if (resample_changed) {
1195         av_log(NULL, AV_LOG_INFO,
1196                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1197                ist->file_index, ist->index,
1198                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
1199                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
1200         if(!ost->video_resample)
1201             ffmpeg_exit(1);
1202     }
1203
1204 #if !CONFIG_AVFILTER
1205     if (ost->video_resample) {
1206         final_picture = &ost->pict_tmp;
1207         if (resample_changed) {
1208             /* initialize a new scaler context */
1209             sws_freeContext(ost->img_resample_ctx);
1210             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1211             ost->img_resample_ctx = sws_getContext(
1212                 ist->st->codec->width,
1213                 ist->st->codec->height,
1214                 ist->st->codec->pix_fmt,
1215                 ost->st->codec->width,
1216                 ost->st->codec->height,
1217                 ost->st->codec->pix_fmt,
1218                 sws_flags, NULL, NULL, NULL);
1219             if (ost->img_resample_ctx == NULL) {
1220                 fprintf(stderr, "Cannot get resampling context\n");
1221                 ffmpeg_exit(1);
1222             }
1223         }
1224         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1225               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1226     }
1227 #endif
1228
1229     /* duplicates frame if needed */
1230     for(i=0;i<nb_frames;i++) {
1231         AVPacket pkt;
1232         av_init_packet(&pkt);
1233         pkt.stream_index= ost->index;
1234
1235         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1236             /* raw pictures are written as AVPicture structure to
1237                avoid any copies. We support temorarily the older
1238                method. */
1239             AVFrame* old_frame = enc->coded_frame;
1240             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1241             pkt.data= (uint8_t *)final_picture;
1242             pkt.size=  sizeof(AVPicture);
1243             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1244             pkt.flags |= AV_PKT_FLAG_KEY;
1245
1246             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1247             enc->coded_frame = old_frame;
1248         } else {
1249             AVFrame big_picture;
1250
1251             big_picture= *final_picture;
1252             /* better than nothing: use input picture interlaced
1253                settings */
1254             big_picture.interlaced_frame = in_picture->interlaced_frame;
1255             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1256                 if(top_field_first == -1)
1257                     big_picture.top_field_first = in_picture->top_field_first;
1258                 else
1259                     big_picture.top_field_first = top_field_first;
1260             }
1261
1262             /* handles sameq here. This is not correct because it may
1263                not be a global option */
1264             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1265             if(!me_threshold)
1266                 big_picture.pict_type = 0;
1267 //            big_picture.pts = AV_NOPTS_VALUE;
1268             big_picture.pts= ost->sync_opts;
1269 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1270 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1271             if (ost->forced_kf_index < ost->forced_kf_count &&
1272                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1273                 big_picture.pict_type = FF_I_TYPE;
1274                 ost->forced_kf_index++;
1275             }
1276             ret = avcodec_encode_video(enc,
1277                                        bit_buffer, bit_buffer_size,
1278                                        &big_picture);
1279             if (ret < 0) {
1280                 fprintf(stderr, "Video encoding failed\n");
1281                 ffmpeg_exit(1);
1282             }
1283
1284             if(ret>0){
1285                 pkt.data= bit_buffer;
1286                 pkt.size= ret;
1287                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1288                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1289 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1290    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1291    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1292
1293                 if(enc->coded_frame->key_frame)
1294                     pkt.flags |= AV_PKT_FLAG_KEY;
1295                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1296                 *frame_size = ret;
1297                 video_size += ret;
1298                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1299                 //        enc->frame_number-1, ret, enc->pict_type);
1300                 /* if two pass, output log */
1301                 if (ost->logfile && enc->stats_out) {
1302                     fprintf(ost->logfile, "%s", enc->stats_out);
1303                 }
1304             }
1305         }
1306         ost->sync_opts++;
1307         ost->frame_number++;
1308     }
1309 }
1310
1311 static double psnr(double d){
1312     return -10.0*log(d)/log(10.0);
1313 }
1314
1315 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1316                            int frame_size)
1317 {
1318     AVCodecContext *enc;
1319     int frame_number;
1320     double ti1, bitrate, avg_bitrate;
1321
1322     /* this is executed just the first time do_video_stats is called */
1323     if (!vstats_file) {
1324         vstats_file = fopen(vstats_filename, "w");
1325         if (!vstats_file) {
1326             perror("fopen");
1327             ffmpeg_exit(1);
1328         }
1329     }
1330
1331     enc = ost->st->codec;
1332     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1333         frame_number = ost->frame_number;
1334         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1335         if (enc->flags&CODEC_FLAG_PSNR)
1336             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1337
1338         fprintf(vstats_file,"f_size= %6d ", frame_size);
1339         /* compute pts value */
1340         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1341         if (ti1 < 0.01)
1342             ti1 = 0.01;
1343
1344         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1345         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1346         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1347             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1348         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1349     }
1350 }
1351
1352 static void print_report(AVFormatContext **output_files,
1353                          AVOutputStream **ost_table, int nb_ostreams,
1354                          int is_last_report)
1355 {
1356     char buf[1024];
1357     AVOutputStream *ost;
1358     AVFormatContext *oc;
1359     int64_t total_size;
1360     AVCodecContext *enc;
1361     int frame_number, vid, i;
1362     double bitrate, ti1, pts;
1363     static int64_t last_time = -1;
1364     static int qp_histogram[52];
1365
1366     if (!is_last_report) {
1367         int64_t cur_time;
1368         /* display the report every 0.5 seconds */
1369         cur_time = av_gettime();
1370         if (last_time == -1) {
1371             last_time = cur_time;
1372             return;
1373         }
1374         if ((cur_time - last_time) < 500000)
1375             return;
1376         last_time = cur_time;
1377     }
1378
1379
1380     oc = output_files[0];
1381
1382     total_size = avio_size(oc->pb);
1383     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1384         total_size= avio_tell(oc->pb);
1385
1386     buf[0] = '\0';
1387     ti1 = 1e10;
1388     vid = 0;
1389     for(i=0;i<nb_ostreams;i++) {
1390         float q= -1;
1391         ost = ost_table[i];
1392         enc = ost->st->codec;
1393         if(!ost->st->stream_copy && enc->coded_frame)
1394             q= enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1395         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1396             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1397         }
1398         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1399             float t = (av_gettime()-timer_start) / 1000000.0;
1400
1401             frame_number = ost->frame_number;
1402             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1403                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1404             if(is_last_report)
1405                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1406             if(qp_hist){
1407                 int j;
1408                 int qp= lrintf(q);
1409                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1410                     qp_histogram[qp]++;
1411                 for(j=0; j<32; j++)
1412                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1413             }
1414             if (enc->flags&CODEC_FLAG_PSNR){
1415                 int j;
1416                 double error, error_sum=0;
1417                 double scale, scale_sum=0;
1418                 char type[3]= {'Y','U','V'};
1419                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1420                 for(j=0; j<3; j++){
1421                     if(is_last_report){
1422                         error= enc->error[j];
1423                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1424                     }else{
1425                         error= enc->coded_frame->error[j];
1426                         scale= enc->width*enc->height*255.0*255.0;
1427                     }
1428                     if(j) scale/=4;
1429                     error_sum += error;
1430                     scale_sum += scale;
1431                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1432                 }
1433                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1434             }
1435             vid = 1;
1436         }
1437         /* compute min output value */
1438         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1439         if ((pts < ti1) && (pts > 0))
1440             ti1 = pts;
1441     }
1442     if (ti1 < 0.01)
1443         ti1 = 0.01;
1444
1445     if (verbose > 0 || is_last_report) {
1446         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1447
1448         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1449             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1450             (double)total_size / 1024, ti1, bitrate);
1451
1452         if (nb_frames_dup || nb_frames_drop)
1453           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1454                   nb_frames_dup, nb_frames_drop);
1455
1456         if (verbose >= 0)
1457             fprintf(stderr, "%s    \r", buf);
1458
1459         fflush(stderr);
1460     }
1461
1462     if (is_last_report && verbose >= 0){
1463         int64_t raw= audio_size + video_size + extra_size;
1464         fprintf(stderr, "\n");
1465         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1466                 video_size/1024.0,
1467                 audio_size/1024.0,
1468                 extra_size/1024.0,
1469                 100.0*(total_size - raw)/raw
1470         );
1471     }
1472 }
1473
1474 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1475 {
1476     int fill_char = 0x00;
1477     if (sample_fmt == AV_SAMPLE_FMT_U8)
1478         fill_char = 0x80;
1479     memset(buf, fill_char, size);
1480 }
1481
1482 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1483 static int output_packet(AVInputStream *ist, int ist_index,
1484                          AVOutputStream **ost_table, int nb_ostreams,
1485                          const AVPacket *pkt)
1486 {
1487     AVFormatContext *os;
1488     AVOutputStream *ost;
1489     int ret, i;
1490     int got_picture;
1491     AVFrame picture;
1492     void *buffer_to_free = NULL;
1493     static unsigned int samples_size= 0;
1494     AVSubtitle subtitle, *subtitle_to_free;
1495     int64_t pkt_pts = AV_NOPTS_VALUE;
1496 #if CONFIG_AVFILTER
1497     int frame_available;
1498 #endif
1499
1500     AVPacket avpkt;
1501     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1502
1503     if(ist->next_pts == AV_NOPTS_VALUE)
1504         ist->next_pts= ist->pts;
1505
1506     if (pkt == NULL) {
1507         /* EOF handling */
1508         av_init_packet(&avpkt);
1509         avpkt.data = NULL;
1510         avpkt.size = 0;
1511         goto handle_eof;
1512     } else {
1513         avpkt = *pkt;
1514     }
1515
1516     if(pkt->dts != AV_NOPTS_VALUE)
1517         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1518     if(pkt->pts != AV_NOPTS_VALUE)
1519         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1520
1521     //while we have more to decode or while the decoder did output something on EOF
1522     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1523         uint8_t *data_buf, *decoded_data_buf;
1524         int data_size, decoded_data_size;
1525     handle_eof:
1526         ist->pts= ist->next_pts;
1527
1528         if(avpkt.size && avpkt.size != pkt->size &&
1529            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1530             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1531             ist->showed_multi_packet_warning=1;
1532         }
1533
1534         /* decode the packet if needed */
1535         decoded_data_buf = NULL; /* fail safe */
1536         decoded_data_size= 0;
1537         data_buf  = avpkt.data;
1538         data_size = avpkt.size;
1539         subtitle_to_free = NULL;
1540         if (ist->decoding_needed) {
1541             switch(ist->st->codec->codec_type) {
1542             case AVMEDIA_TYPE_AUDIO:{
1543                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1544                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1545                     av_free(samples);
1546                     samples= av_malloc(samples_size);
1547                 }
1548                 decoded_data_size= samples_size;
1549                     /* XXX: could avoid copy if PCM 16 bits with same
1550                        endianness as CPU */
1551                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1552                                             &avpkt);
1553                 if (ret < 0)
1554                     goto fail_decode;
1555                 avpkt.data += ret;
1556                 avpkt.size -= ret;
1557                 data_size   = ret;
1558                 /* Some bug in mpeg audio decoder gives */
1559                 /* decoded_data_size < 0, it seems they are overflows */
1560                 if (decoded_data_size <= 0) {
1561                     /* no audio frame */
1562                     continue;
1563                 }
1564                 decoded_data_buf = (uint8_t *)samples;
1565                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1566                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1567                 break;}
1568             case AVMEDIA_TYPE_VIDEO:
1569                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1570                     /* XXX: allocate picture correctly */
1571                     avcodec_get_frame_defaults(&picture);
1572                     avpkt.pts = pkt_pts;
1573                     avpkt.dts = ist->pts;
1574                     pkt_pts = AV_NOPTS_VALUE;
1575
1576                     ret = avcodec_decode_video2(ist->st->codec,
1577                                                 &picture, &got_picture, &avpkt);
1578                     ist->st->quality= picture.quality;
1579                     if (ret < 0)
1580                         goto fail_decode;
1581                     if (!got_picture) {
1582                         /* no picture yet */
1583                         goto discard_packet;
1584                     }
1585                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1586                     if (ist->st->codec->time_base.num != 0) {
1587                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1588                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1589                                           ist->st->codec->time_base.num * ticks) /
1590                             ist->st->codec->time_base.den;
1591                     }
1592                     avpkt.size = 0;
1593                     buffer_to_free = NULL;
1594                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1595                     break;
1596             case AVMEDIA_TYPE_SUBTITLE:
1597                 ret = avcodec_decode_subtitle2(ist->st->codec,
1598                                                &subtitle, &got_picture, &avpkt);
1599                 if (ret < 0)
1600                     goto fail_decode;
1601                 if (!got_picture) {
1602                     goto discard_packet;
1603                 }
1604                 subtitle_to_free = &subtitle;
1605                 avpkt.size = 0;
1606                 break;
1607             default:
1608                 goto fail_decode;
1609             }
1610         } else {
1611             switch(ist->st->codec->codec_type) {
1612             case AVMEDIA_TYPE_AUDIO:
1613                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1614                     ist->st->codec->sample_rate;
1615                 break;
1616             case AVMEDIA_TYPE_VIDEO:
1617                 if (ist->st->codec->time_base.num != 0) {
1618                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1619                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1620                                       ist->st->codec->time_base.num * ticks) /
1621                         ist->st->codec->time_base.den;
1622                 }
1623                 break;
1624             }
1625             ret = avpkt.size;
1626             avpkt.size = 0;
1627         }
1628
1629 #if CONFIG_AVFILTER
1630         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
1631             for(i=0;i<nb_ostreams;i++) {
1632                 ost = ost_table[i];
1633                 if (ost->input_video_filter && ost->source_index == ist_index) {
1634                     AVRational sar;
1635                     if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1636                     else                                  sar = ist->st->codec->sample_aspect_ratio;
1637                     // add it to be filtered
1638                     av_vsrc_buffer_add_frame2(ost->input_video_filter, &picture,
1639                                              ist->pts,
1640                                              sar, ist->st->codec->width, ist->st->codec->height,
1641                                              ist->st->codec->pix_fmt, "0:0"); //TODO user setable params
1642                 }
1643             }
1644         }
1645 #endif
1646
1647         // preprocess audio (volume)
1648         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1649             if (audio_volume != 256) {
1650                 short *volp;
1651                 volp = samples;
1652                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1653                     int v = ((*volp) * audio_volume + 128) >> 8;
1654                     if (v < -32768) v = -32768;
1655                     if (v >  32767) v = 32767;
1656                     *volp++ = v;
1657                 }
1658             }
1659         }
1660
1661         /* frame rate emulation */
1662         if (rate_emu) {
1663             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1664             int64_t now = av_gettime() - ist->start;
1665             if (pts > now)
1666                 usleep(pts - now);
1667         }
1668         /* if output time reached then transcode raw format,
1669            encode packets and output them */
1670         if (start_time == 0 || ist->pts >= start_time)
1671             for(i=0;i<nb_ostreams;i++) {
1672                 int frame_size;
1673
1674                 ost = ost_table[i];
1675                 if (ost->source_index == ist_index) {
1676 #if CONFIG_AVFILTER
1677                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1678                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1679                 while (frame_available) {
1680                     AVRational ist_pts_tb;
1681                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1682                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1683                     if (ost->picref)
1684                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1685 #endif
1686                     os = output_files[ost->file_index];
1687
1688                     /* set the input output pts pairs */
1689                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1690
1691                     if (ost->encoding_needed) {
1692                         av_assert0(ist->decoding_needed);
1693                         switch(ost->st->codec->codec_type) {
1694                         case AVMEDIA_TYPE_AUDIO:
1695                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1696                             break;
1697                         case AVMEDIA_TYPE_VIDEO:
1698 #if CONFIG_AVFILTER
1699                             if (ost->picref->video && !ost->frame_aspect_ratio)
1700                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1701 #endif
1702                             do_video_out(os, ost, ist, &picture, &frame_size);
1703                             if (vstats_filename && frame_size)
1704                                 do_video_stats(os, ost, frame_size);
1705                             break;
1706                         case AVMEDIA_TYPE_SUBTITLE:
1707                             do_subtitle_out(os, ost, ist, &subtitle,
1708                                             pkt->pts);
1709                             break;
1710                         default:
1711                             abort();
1712                         }
1713                     } else {
1714                         AVFrame avframe; //FIXME/XXX remove this
1715                         AVPacket opkt;
1716                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1717
1718                         av_init_packet(&opkt);
1719
1720                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1721 #if !CONFIG_AVFILTER
1722                             continue;
1723 #else
1724                             goto cont;
1725 #endif
1726
1727                         /* no reencoding needed : output the packet directly */
1728                         /* force the input stream PTS */
1729
1730                         avcodec_get_frame_defaults(&avframe);
1731                         ost->st->codec->coded_frame= &avframe;
1732                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1733
1734                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1735                             audio_size += data_size;
1736                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1737                             video_size += data_size;
1738                             ost->sync_opts++;
1739                         }
1740
1741                         opkt.stream_index= ost->index;
1742                         if(pkt->pts != AV_NOPTS_VALUE)
1743                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1744                         else
1745                             opkt.pts= AV_NOPTS_VALUE;
1746
1747                         if (pkt->dts == AV_NOPTS_VALUE)
1748                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1749                         else
1750                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1751                         opkt.dts -= ost_tb_start_time;
1752
1753                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1754                         opkt.flags= pkt->flags;
1755
1756                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1757                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1758                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1759                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1760                            ) {
1761                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1762                                 opkt.destruct= av_destruct_packet;
1763                         } else {
1764                             opkt.data = data_buf;
1765                             opkt.size = data_size;
1766                         }
1767
1768                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1769                         ost->st->codec->frame_number++;
1770                         ost->frame_number++;
1771                         av_free_packet(&opkt);
1772                     }
1773 #if CONFIG_AVFILTER
1774                     cont:
1775                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1776                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1777                     if(ost->picref)
1778                         avfilter_unref_buffer(ost->picref);
1779                 }
1780 #endif
1781                 }
1782             }
1783
1784         av_free(buffer_to_free);
1785         /* XXX: allocate the subtitles in the codec ? */
1786         if (subtitle_to_free) {
1787             avsubtitle_free(subtitle_to_free);
1788             subtitle_to_free = NULL;
1789         }
1790     }
1791  discard_packet:
1792     if (pkt == NULL) {
1793         /* EOF handling */
1794
1795         for(i=0;i<nb_ostreams;i++) {
1796             ost = ost_table[i];
1797             if (ost->source_index == ist_index) {
1798                 AVCodecContext *enc= ost->st->codec;
1799                 os = output_files[ost->file_index];
1800
1801                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1802                     continue;
1803                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1804                     continue;
1805
1806                 if (ost->encoding_needed) {
1807                     for(;;) {
1808                         AVPacket pkt;
1809                         int fifo_bytes;
1810                         av_init_packet(&pkt);
1811                         pkt.stream_index= ost->index;
1812
1813                         switch(ost->st->codec->codec_type) {
1814                         case AVMEDIA_TYPE_AUDIO:
1815                             fifo_bytes = av_fifo_size(ost->fifo);
1816                             ret = 0;
1817                             /* encode any samples remaining in fifo */
1818                             if (fifo_bytes > 0) {
1819                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1820                                 int fs_tmp = enc->frame_size;
1821
1822                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1823                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1824                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1825                                 } else { /* pad */
1826                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1827                                     if (allocated_audio_buf_size < frame_bytes)
1828                                         ffmpeg_exit(1);
1829                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1830                                 }
1831
1832                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1833                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1834                                                           ost->st->time_base.num, enc->sample_rate);
1835                                 enc->frame_size = fs_tmp;
1836                             }
1837                             if(ret <= 0) {
1838                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1839                             }
1840                             if (ret < 0) {
1841                                 fprintf(stderr, "Audio encoding failed\n");
1842                                 ffmpeg_exit(1);
1843                             }
1844                             audio_size += ret;
1845                             pkt.flags |= AV_PKT_FLAG_KEY;
1846                             break;
1847                         case AVMEDIA_TYPE_VIDEO:
1848                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1849                             if (ret < 0) {
1850                                 fprintf(stderr, "Video encoding failed\n");
1851                                 ffmpeg_exit(1);
1852                             }
1853                             video_size += ret;
1854                             if(enc->coded_frame && enc->coded_frame->key_frame)
1855                                 pkt.flags |= AV_PKT_FLAG_KEY;
1856                             if (ost->logfile && enc->stats_out) {
1857                                 fprintf(ost->logfile, "%s", enc->stats_out);
1858                             }
1859                             break;
1860                         default:
1861                             ret=-1;
1862                         }
1863
1864                         if(ret<=0)
1865                             break;
1866                         pkt.data= bit_buffer;
1867                         pkt.size= ret;
1868                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1869                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1870                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1871                     }
1872                 }
1873             }
1874         }
1875     }
1876
1877     return 0;
1878  fail_decode:
1879     return -1;
1880 }
1881
1882 static void print_sdp(AVFormatContext **avc, int n)
1883 {
1884     char sdp[2048];
1885
1886     av_sdp_create(avc, n, sdp, sizeof(sdp));
1887     printf("SDP:\n%s\n", sdp);
1888     fflush(stdout);
1889 }
1890
1891 static int copy_chapters(int infile, int outfile)
1892 {
1893     AVFormatContext *is = input_files[infile];
1894     AVFormatContext *os = output_files[outfile];
1895     int i;
1896
1897     for (i = 0; i < is->nb_chapters; i++) {
1898         AVChapter *in_ch = is->chapters[i], *out_ch;
1899         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1900                                       AV_TIME_BASE_Q, in_ch->time_base);
1901         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1902                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1903
1904
1905         if (in_ch->end < ts_off)
1906             continue;
1907         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1908             break;
1909
1910         out_ch = av_mallocz(sizeof(AVChapter));
1911         if (!out_ch)
1912             return AVERROR(ENOMEM);
1913
1914         out_ch->id        = in_ch->id;
1915         out_ch->time_base = in_ch->time_base;
1916         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1917         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1918
1919         if (metadata_chapters_autocopy)
1920             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1921
1922         os->nb_chapters++;
1923         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1924         if (!os->chapters)
1925             return AVERROR(ENOMEM);
1926         os->chapters[os->nb_chapters - 1] = out_ch;
1927     }
1928     return 0;
1929 }
1930
1931 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1932                                     AVCodecContext *avctx)
1933 {
1934     char *p;
1935     int n = 1, i;
1936     int64_t t;
1937
1938     for (p = kf; *p; p++)
1939         if (*p == ',')
1940             n++;
1941     ost->forced_kf_count = n;
1942     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1943     if (!ost->forced_kf_pts) {
1944         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1945         ffmpeg_exit(1);
1946     }
1947     for (i = 0; i < n; i++) {
1948         p = i ? strchr(p, ',') + 1 : kf;
1949         t = parse_time_or_die("force_key_frames", p, 1);
1950         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1951     }
1952 }
1953
1954 /*
1955  * The following code is the main loop of the file converter
1956  */
1957 static int transcode(AVFormatContext **output_files,
1958                      int nb_output_files,
1959                      AVFormatContext **input_files,
1960                      int nb_input_files,
1961                      AVStreamMap *stream_maps, int nb_stream_maps)
1962 {
1963     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, step;
1964     AVFormatContext *is, *os;
1965     AVCodecContext *codec, *icodec;
1966     AVOutputStream *ost, **ost_table = NULL;
1967     AVInputStream *ist, **ist_table = NULL;
1968     AVInputFile *file_table;
1969     char error[1024];
1970     int key;
1971     int want_sdp = 1;
1972     uint8_t no_packet[MAX_FILES]={0};
1973     int no_packet_count=0;
1974     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
1975     int nb_streams[AVMEDIA_TYPE_NB]={0};
1976
1977     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1978     if (!file_table)
1979         goto fail;
1980
1981     /* input stream init */
1982     j = 0;
1983     for(i=0;i<nb_input_files;i++) {
1984         is = input_files[i];
1985         file_table[i].ist_index = j;
1986         file_table[i].nb_streams = is->nb_streams;
1987         j += is->nb_streams;
1988     }
1989     nb_istreams = j;
1990
1991     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1992     if (!ist_table)
1993         goto fail;
1994
1995     for(i=0;i<nb_istreams;i++) {
1996         ist = av_mallocz(sizeof(AVInputStream));
1997         if (!ist)
1998             goto fail;
1999         ist_table[i] = ist;
2000     }
2001     j = 0;
2002     for(i=0;i<nb_input_files;i++) {
2003         is = input_files[i];
2004         for(k=0;k<is->nb_streams;k++) {
2005             ist = ist_table[j++];
2006             ist->st = is->streams[k];
2007             ist->file_index = i;
2008             ist->index = k;
2009             ist->discard = 1; /* the stream is discarded by default
2010                                  (changed later) */
2011
2012             if (rate_emu) {
2013                 ist->start = av_gettime();
2014             }
2015         }
2016     }
2017
2018     /* output stream init */
2019     nb_ostreams = 0;
2020     for(i=0;i<nb_output_files;i++) {
2021         os = output_files[i];
2022         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2023             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2024             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2025             ret = AVERROR(EINVAL);
2026             goto fail;
2027         }
2028         nb_ostreams += os->nb_streams;
2029     }
2030     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2031         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2032         ret = AVERROR(EINVAL);
2033         goto fail;
2034     }
2035
2036     /* Sanity check the mapping args -- do the input files & streams exist? */
2037     for(i=0;i<nb_stream_maps;i++) {
2038         int fi = stream_maps[i].file_index;
2039         int si = stream_maps[i].stream_index;
2040
2041         if (fi < 0 || fi > nb_input_files - 1 ||
2042             si < 0 || si > file_table[fi].nb_streams - 1) {
2043             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2044             ret = AVERROR(EINVAL);
2045             goto fail;
2046         }
2047         fi = stream_maps[i].sync_file_index;
2048         si = stream_maps[i].sync_stream_index;
2049         if (fi < 0 || fi > nb_input_files - 1 ||
2050             si < 0 || si > file_table[fi].nb_streams - 1) {
2051             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2052             ret = AVERROR(EINVAL);
2053             goto fail;
2054         }
2055     }
2056
2057     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2058     if (!ost_table)
2059         goto fail;
2060
2061     for(k=0;k<nb_output_files;k++) {
2062         os = output_files[k];
2063         for(i=0;i<os->nb_streams;i++,n++) {
2064             nb_streams[os->streams[i]->codec->codec_type]++;
2065         }
2066     }
2067     for(step=1<<30; step; step>>=1){
2068         int found_streams[AVMEDIA_TYPE_NB]={0};
2069         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2070             nb_frame_threshold[j] += step;
2071
2072         for(j=0; j<nb_istreams; j++) {
2073             int skip=0;
2074             ist = ist_table[j];
2075             if(opt_programid){
2076                 int pi,si;
2077                 AVFormatContext *f= input_files[ ist->file_index ];
2078                 skip=1;
2079                 for(pi=0; pi<f->nb_programs; pi++){
2080                     AVProgram *p= f->programs[pi];
2081                     if(p->id == opt_programid)
2082                         for(si=0; si<p->nb_stream_indexes; si++){
2083                             if(f->streams[ p->stream_index[si] ] == ist->st)
2084                                 skip=0;
2085                         }
2086                 }
2087             }
2088             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2089                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2090                 found_streams[ist->st->codec->codec_type]++;
2091             }
2092         }
2093         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2094             if(found_streams[j] < nb_streams[j])
2095                 nb_frame_threshold[j] -= step;
2096     }
2097     n = 0;
2098     for(k=0;k<nb_output_files;k++) {
2099         os = output_files[k];
2100         for(i=0;i<os->nb_streams;i++,n++) {
2101             int found;
2102             ost = ost_table[n] = output_streams_for_file[k][i];
2103             ost->st = os->streams[i];
2104             if (nb_stream_maps > 0) {
2105                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2106                     stream_maps[n].stream_index;
2107
2108                 /* Sanity check that the stream types match */
2109                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2110                     int i= ost->file_index;
2111                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2112                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2113                         stream_maps[n].file_index, stream_maps[n].stream_index,
2114                         ost->file_index, ost->index);
2115                     ffmpeg_exit(1);
2116                 }
2117
2118             } else {
2119                 /* get corresponding input stream index : we select the first one with the right type */
2120                 found = 0;
2121                 for(j=0;j<nb_istreams;j++) {
2122                     int skip=0;
2123                     ist = ist_table[j];
2124                     if(opt_programid){
2125                         int pi,si;
2126                         AVFormatContext *f= input_files[ ist->file_index ];
2127                         skip=1;
2128                         for(pi=0; pi<f->nb_programs; pi++){
2129                             AVProgram *p= f->programs[pi];
2130                             if(p->id == opt_programid)
2131                                 for(si=0; si<p->nb_stream_indexes; si++){
2132                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2133                                         skip=0;
2134                                 }
2135                         }
2136                     }
2137                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2138                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2139                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2140                             ost->source_index = j;
2141                             found = 1;
2142                             break;
2143                     }
2144                 }
2145
2146                 if (!found) {
2147                     if(! opt_programid) {
2148                         /* try again and reuse existing stream */
2149                         for(j=0;j<nb_istreams;j++) {
2150                             ist = ist_table[j];
2151                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2152                                 && ist->st->discard != AVDISCARD_ALL) {
2153                                 ost->source_index = j;
2154                                 found = 1;
2155                             }
2156                         }
2157                     }
2158                     if (!found) {
2159                         int i= ost->file_index;
2160                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2161                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2162                                 ost->file_index, ost->index);
2163                         ffmpeg_exit(1);
2164                     }
2165                 }
2166             }
2167             ist = ist_table[ost->source_index];
2168             ist->discard = 0;
2169             ost->sync_ist = (nb_stream_maps > 0) ?
2170                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2171                          stream_maps[n].sync_stream_index] : ist;
2172         }
2173     }
2174
2175     /* for each output stream, we compute the right encoding parameters */
2176     for(i=0;i<nb_ostreams;i++) {
2177         ost = ost_table[i];
2178         os = output_files[ost->file_index];
2179         ist = ist_table[ost->source_index];
2180
2181         codec = ost->st->codec;
2182         icodec = ist->st->codec;
2183
2184         if (metadata_streams_autocopy)
2185             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2186                              AV_METADATA_DONT_OVERWRITE);
2187
2188         ost->st->disposition = ist->st->disposition;
2189         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2190         codec->chroma_sample_location = icodec->chroma_sample_location;
2191
2192         if (ost->st->stream_copy) {
2193             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2194
2195             if (extra_size > INT_MAX)
2196                 goto fail;
2197
2198             /* if stream_copy is selected, no need to decode or encode */
2199             codec->codec_id = icodec->codec_id;
2200             codec->codec_type = icodec->codec_type;
2201
2202             if(!codec->codec_tag){
2203                 if(   !os->oformat->codec_tag
2204                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2205                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2206                     codec->codec_tag = icodec->codec_tag;
2207             }
2208
2209             codec->bit_rate = icodec->bit_rate;
2210             codec->rc_max_rate    = icodec->rc_max_rate;
2211             codec->rc_buffer_size = icodec->rc_buffer_size;
2212             codec->extradata= av_mallocz(extra_size);
2213             if (!codec->extradata)
2214                 goto fail;
2215             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2216             codec->extradata_size= icodec->extradata_size;
2217             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){
2218                 codec->time_base = icodec->time_base;
2219                 codec->time_base.num *= icodec->ticks_per_frame;
2220                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2221                           codec->time_base.num, codec->time_base.den, INT_MAX);
2222             }else
2223                 codec->time_base = ist->st->time_base;
2224             switch(codec->codec_type) {
2225             case AVMEDIA_TYPE_AUDIO:
2226                 if(audio_volume != 256) {
2227                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2228                     ffmpeg_exit(1);
2229                 }
2230                 codec->channel_layout = icodec->channel_layout;
2231                 codec->sample_rate = icodec->sample_rate;
2232                 codec->channels = icodec->channels;
2233                 codec->frame_size = icodec->frame_size;
2234                 codec->audio_service_type = icodec->audio_service_type;
2235                 codec->block_align= icodec->block_align;
2236                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2237                     codec->block_align= 0;
2238                 if(codec->codec_id == CODEC_ID_AC3)
2239                     codec->block_align= 0;
2240                 break;
2241             case AVMEDIA_TYPE_VIDEO:
2242                 codec->pix_fmt = icodec->pix_fmt;
2243                 codec->width = icodec->width;
2244                 codec->height = icodec->height;
2245                 codec->has_b_frames = icodec->has_b_frames;
2246                 if (!codec->sample_aspect_ratio.num) {
2247                     codec->sample_aspect_ratio =
2248                     ost->st->sample_aspect_ratio =
2249                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2250                         ist->st->codec->sample_aspect_ratio.num ?
2251                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2252                 }
2253                 break;
2254             case AVMEDIA_TYPE_SUBTITLE:
2255                 codec->width = icodec->width;
2256                 codec->height = icodec->height;
2257                 break;
2258             default:
2259                 abort();
2260             }
2261         } else {
2262             switch(codec->codec_type) {
2263             case AVMEDIA_TYPE_AUDIO:
2264                 ost->fifo= av_fifo_alloc(1024);
2265                 if(!ost->fifo)
2266                     goto fail;
2267                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2268                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2269                 icodec->request_channels = codec->channels;
2270                 ist->decoding_needed = 1;
2271                 ost->encoding_needed = 1;
2272                 ost->resample_sample_fmt  = icodec->sample_fmt;
2273                 ost->resample_sample_rate = icodec->sample_rate;
2274                 ost->resample_channels    = icodec->channels;
2275                 break;
2276             case AVMEDIA_TYPE_VIDEO:
2277                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2278                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2279                     ffmpeg_exit(1);
2280                 }
2281                 ost->video_resample = codec->width   != icodec->width  ||
2282                                       codec->height  != icodec->height ||
2283                                       codec->pix_fmt != icodec->pix_fmt;
2284                 if (ost->video_resample) {
2285 #if !CONFIG_AVFILTER
2286                     avcodec_get_frame_defaults(&ost->pict_tmp);
2287                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2288                                          codec->width, codec->height)) {
2289                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2290                         ffmpeg_exit(1);
2291                     }
2292                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2293                     ost->img_resample_ctx = sws_getContext(
2294                         icodec->width,
2295                         icodec->height,
2296                             icodec->pix_fmt,
2297                             codec->width,
2298                             codec->height,
2299                             codec->pix_fmt,
2300                             sws_flags, NULL, NULL, NULL);
2301                     if (ost->img_resample_ctx == NULL) {
2302                         fprintf(stderr, "Cannot get resampling context\n");
2303                         ffmpeg_exit(1);
2304                     }
2305 #endif
2306                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2307                 }
2308                 ost->resample_height = icodec->height;
2309                 ost->resample_width  = icodec->width;
2310                 ost->resample_pix_fmt= icodec->pix_fmt;
2311                 ost->encoding_needed = 1;
2312                 ist->decoding_needed = 1;
2313
2314 #if CONFIG_AVFILTER
2315                 if (configure_video_filters(ist, ost)) {
2316                     fprintf(stderr, "Error opening filters!\n");
2317                     exit(1);
2318                 }
2319 #endif
2320                 break;
2321             case AVMEDIA_TYPE_SUBTITLE:
2322                 ost->encoding_needed = 1;
2323                 ist->decoding_needed = 1;
2324                 break;
2325             default:
2326                 abort();
2327                 break;
2328             }
2329             /* two pass mode */
2330             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2331                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2332                 char logfilename[1024];
2333                 FILE *f;
2334
2335                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2336                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2337                          i);
2338                 if (codec->flags & CODEC_FLAG_PASS1) {
2339                     f = fopen(logfilename, "wb");
2340                     if (!f) {
2341                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2342                         ffmpeg_exit(1);
2343                     }
2344                     ost->logfile = f;
2345                 } else {
2346                     char  *logbuffer;
2347                     size_t logbuffer_size;
2348                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2349                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2350                         ffmpeg_exit(1);
2351                     }
2352                     codec->stats_in = logbuffer;
2353                 }
2354             }
2355         }
2356         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2357             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2358             int size= codec->width * codec->height;
2359             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2360         }
2361     }
2362
2363     if (!bit_buffer)
2364         bit_buffer = av_malloc(bit_buffer_size);
2365     if (!bit_buffer) {
2366         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2367                 bit_buffer_size);
2368         ret = AVERROR(ENOMEM);
2369         goto fail;
2370     }
2371
2372     /* open each encoder */
2373     for(i=0;i<nb_ostreams;i++) {
2374         ost = ost_table[i];
2375         if (ost->encoding_needed) {
2376             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2377             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2378             if (!codec)
2379                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2380             if (!codec) {
2381                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2382                          ost->st->codec->codec_id, ost->file_index, ost->index);
2383                 ret = AVERROR(EINVAL);
2384                 goto dump_format;
2385             }
2386             if (dec->subtitle_header) {
2387                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2388                 if (!ost->st->codec->subtitle_header) {
2389                     ret = AVERROR(ENOMEM);
2390                     goto dump_format;
2391                 }
2392                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2393                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2394             }
2395             if (avcodec_open(ost->st->codec, codec) < 0) {
2396                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2397                         ost->file_index, ost->index);
2398                 ret = AVERROR(EINVAL);
2399                 goto dump_format;
2400             }
2401             extra_size += ost->st->codec->extradata_size;
2402         }
2403     }
2404
2405     /* open each decoder */
2406     for(i=0;i<nb_istreams;i++) {
2407         ist = ist_table[i];
2408         if (ist->decoding_needed) {
2409             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2410             if (!codec)
2411                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2412             if (!codec) {
2413                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2414                         ist->st->codec->codec_id, ist->file_index, ist->index);
2415                 ret = AVERROR(EINVAL);
2416                 goto dump_format;
2417             }
2418             if (avcodec_open(ist->st->codec, codec) < 0) {
2419                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2420                         ist->file_index, ist->index);
2421                 ret = AVERROR(EINVAL);
2422                 goto dump_format;
2423             }
2424             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2425             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2426         }
2427     }
2428
2429     /* init pts */
2430     for(i=0;i<nb_istreams;i++) {
2431         AVStream *st;
2432         ist = ist_table[i];
2433         st= ist->st;
2434         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2435         ist->next_pts = AV_NOPTS_VALUE;
2436         ist->is_start = 1;
2437     }
2438
2439     /* set meta data information from input file if required */
2440     for (i=0;i<nb_meta_data_maps;i++) {
2441         AVFormatContext *files[2];
2442         AVMetadata      **meta[2];
2443         int j;
2444
2445 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2446         if ((index) < 0 || (index) >= (nb_elems)) {\
2447             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2448                      (desc), (index));\
2449             ret = AVERROR(EINVAL);\
2450             goto dump_format;\
2451         }
2452
2453         int out_file_index = meta_data_maps[i][0].file;
2454         int in_file_index = meta_data_maps[i][1].file;
2455         if (in_file_index < 0 || out_file_index < 0)
2456             continue;
2457         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2458         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2459
2460         files[0] = output_files[out_file_index];
2461         files[1] = input_files[in_file_index];
2462
2463         for (j = 0; j < 2; j++) {
2464             AVMetaDataMap *map = &meta_data_maps[i][j];
2465
2466             switch (map->type) {
2467             case 'g':
2468                 meta[j] = &files[j]->metadata;
2469                 break;
2470             case 's':
2471                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2472                 meta[j] = &files[j]->streams[map->index]->metadata;
2473                 break;
2474             case 'c':
2475                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2476                 meta[j] = &files[j]->chapters[map->index]->metadata;
2477                 break;
2478             case 'p':
2479                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2480                 meta[j] = &files[j]->programs[map->index]->metadata;
2481                 break;
2482             }
2483         }
2484
2485         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2486     }
2487
2488     /* copy global metadata by default */
2489     if (metadata_global_autocopy) {
2490
2491         for (i = 0; i < nb_output_files; i++)
2492             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2493                              AV_METADATA_DONT_OVERWRITE);
2494     }
2495
2496     /* copy chapters according to chapter maps */
2497     for (i = 0; i < nb_chapter_maps; i++) {
2498         int infile  = chapter_maps[i].in_file;
2499         int outfile = chapter_maps[i].out_file;
2500
2501         if (infile < 0 || outfile < 0)
2502             continue;
2503         if (infile >= nb_input_files) {
2504             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2505             ret = AVERROR(EINVAL);
2506             goto dump_format;
2507         }
2508         if (outfile >= nb_output_files) {
2509             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2510             ret = AVERROR(EINVAL);
2511             goto dump_format;
2512         }
2513         copy_chapters(infile, outfile);
2514     }
2515
2516     /* copy chapters from the first input file that has them*/
2517     if (!nb_chapter_maps)
2518         for (i = 0; i < nb_input_files; i++) {
2519             if (!input_files[i]->nb_chapters)
2520                 continue;
2521
2522             for (j = 0; j < nb_output_files; j++)
2523                 if ((ret = copy_chapters(i, j)) < 0)
2524                     goto dump_format;
2525             break;
2526         }
2527
2528     /* open files and write file headers */
2529     for(i=0;i<nb_output_files;i++) {
2530         os = output_files[i];
2531         if (av_write_header(os) < 0) {
2532             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2533             ret = AVERROR(EINVAL);
2534             goto dump_format;
2535         }
2536         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2537             want_sdp = 0;
2538         }
2539     }
2540
2541  dump_format:
2542     /* dump the file output parameters - cannot be done before in case
2543        of stream copy */
2544     for(i=0;i<nb_output_files;i++) {
2545         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2546     }
2547
2548     /* dump the stream mapping */
2549     if (verbose >= 0) {
2550         fprintf(stderr, "Stream mapping:\n");
2551         for(i=0;i<nb_ostreams;i++) {
2552             ost = ost_table[i];
2553             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2554                     ist_table[ost->source_index]->file_index,
2555                     ist_table[ost->source_index]->index,
2556                     ost->file_index,
2557                     ost->index);
2558             if (ost->sync_ist != ist_table[ost->source_index])
2559                 fprintf(stderr, " [sync #%d.%d]",
2560                         ost->sync_ist->file_index,
2561                         ost->sync_ist->index);
2562             fprintf(stderr, "\n");
2563         }
2564     }
2565
2566     if (ret) {
2567         fprintf(stderr, "%s\n", error);
2568         goto fail;
2569     }
2570
2571     if (want_sdp) {
2572         print_sdp(output_files, nb_output_files);
2573     }
2574
2575     if (!using_stdin) {
2576         if(verbose >= 0)
2577             fprintf(stderr, "Press [q] to stop encoding\n");
2578         avio_set_interrupt_cb(decode_interrupt_cb);
2579     }
2580     term_init();
2581
2582     timer_start = av_gettime();
2583
2584     for(; received_sigterm == 0;) {
2585         int file_index, ist_index;
2586         AVPacket pkt;
2587         double ipts_min;
2588         double opts_min;
2589
2590     redo:
2591         ipts_min= 1e100;
2592         opts_min= 1e100;
2593         /* if 'q' pressed, exits */
2594         if (!using_stdin) {
2595             if (q_pressed)
2596                 break;
2597             /* read_key() returns 0 on EOF */
2598             key = read_key();
2599             if (key == 'q')
2600                 break;
2601         }
2602
2603         /* select the stream that we must read now by looking at the
2604            smallest output pts */
2605         file_index = -1;
2606         for(i=0;i<nb_ostreams;i++) {
2607             double ipts, opts;
2608             ost = ost_table[i];
2609             os = output_files[ost->file_index];
2610             ist = ist_table[ost->source_index];
2611             if(ist->is_past_recording_time || no_packet[ist->file_index])
2612                 continue;
2613                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2614             ipts = (double)ist->pts;
2615             if (!file_table[ist->file_index].eof_reached){
2616                 if(ipts < ipts_min) {
2617                     ipts_min = ipts;
2618                     if(input_sync ) file_index = ist->file_index;
2619                 }
2620                 if(opts < opts_min) {
2621                     opts_min = opts;
2622                     if(!input_sync) file_index = ist->file_index;
2623                 }
2624             }
2625             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2626                 file_index= -1;
2627                 break;
2628             }
2629         }
2630         /* if none, if is finished */
2631         if (file_index < 0) {
2632             if(no_packet_count){
2633                 no_packet_count=0;
2634                 memset(no_packet, 0, sizeof(no_packet));
2635                 usleep(10000);
2636                 continue;
2637             }
2638             break;
2639         }
2640
2641         /* finish if limit size exhausted */
2642         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2643             break;
2644
2645         /* read a frame from it and output it in the fifo */
2646         is = input_files[file_index];
2647         ret= av_read_frame(is, &pkt);
2648         if(ret == AVERROR(EAGAIN)){
2649             no_packet[file_index]=1;
2650             no_packet_count++;
2651             continue;
2652         }
2653         if (ret < 0) {
2654             file_table[file_index].eof_reached = 1;
2655             if (opt_shortest)
2656                 break;
2657             else
2658                 continue;
2659         }
2660
2661         no_packet_count=0;
2662         memset(no_packet, 0, sizeof(no_packet));
2663
2664         if (do_pkt_dump) {
2665             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2666                              is->streams[pkt.stream_index]);
2667         }
2668         /* the following test is needed in case new streams appear
2669            dynamically in stream : we ignore them */
2670         if (pkt.stream_index >= file_table[file_index].nb_streams)
2671             goto discard_packet;
2672         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2673         ist = ist_table[ist_index];
2674         if (ist->discard)
2675             goto discard_packet;
2676
2677         if (pkt.dts != AV_NOPTS_VALUE)
2678             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2679         if (pkt.pts != AV_NOPTS_VALUE)
2680             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2681
2682         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2683             && input_files_ts_scale[file_index][pkt.stream_index]){
2684             if(pkt.pts != AV_NOPTS_VALUE)
2685                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2686             if(pkt.dts != AV_NOPTS_VALUE)
2687                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2688         }
2689
2690 //        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);
2691         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2692             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2693             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2694             int64_t delta= pkt_dts - ist->next_pts;
2695             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2696                 input_files_ts_offset[ist->file_index]-= delta;
2697                 if (verbose > 2)
2698                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2699                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2700                 if(pkt.pts != AV_NOPTS_VALUE)
2701                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2702             }
2703         }
2704
2705         /* finish if recording time exhausted */
2706         if (recording_time != INT64_MAX &&
2707             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2708             ist->is_past_recording_time = 1;
2709             goto discard_packet;
2710         }
2711
2712         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2713         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2714
2715             if (verbose >= 0)
2716                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2717                         ist->file_index, ist->index);
2718             if (exit_on_error)
2719                 ffmpeg_exit(1);
2720             av_free_packet(&pkt);
2721             goto redo;
2722         }
2723
2724     discard_packet:
2725         av_free_packet(&pkt);
2726
2727         /* dump report by using the output first video and audio streams */
2728         print_report(output_files, ost_table, nb_ostreams, 0);
2729     }
2730
2731     /* at the end of stream, we must flush the decoder buffers */
2732     for(i=0;i<nb_istreams;i++) {
2733         ist = ist_table[i];
2734         if (ist->decoding_needed) {
2735             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2736         }
2737     }
2738
2739     term_exit();
2740
2741     /* write the trailer if needed and close file */
2742     for(i=0;i<nb_output_files;i++) {
2743         os = output_files[i];
2744         av_write_trailer(os);
2745     }
2746
2747     /* dump report by using the first video and audio streams */
2748     print_report(output_files, ost_table, nb_ostreams, 1);
2749
2750     /* close each encoder */
2751     for(i=0;i<nb_ostreams;i++) {
2752         ost = ost_table[i];
2753         if (ost->encoding_needed) {
2754             av_freep(&ost->st->codec->stats_in);
2755             avcodec_close(ost->st->codec);
2756         }
2757 #if CONFIG_AVFILTER
2758         avfilter_graph_free(&ost->graph);
2759 #endif
2760     }
2761
2762     /* close each decoder */
2763     for(i=0;i<nb_istreams;i++) {
2764         ist = ist_table[i];
2765         if (ist->decoding_needed) {
2766             avcodec_close(ist->st->codec);
2767         }
2768     }
2769
2770     /* finished ! */
2771     ret = 0;
2772
2773  fail:
2774     av_freep(&bit_buffer);
2775     av_free(file_table);
2776
2777     if (ist_table) {
2778         for(i=0;i<nb_istreams;i++) {
2779             ist = ist_table[i];
2780             av_free(ist);
2781         }
2782         av_free(ist_table);
2783     }
2784     if (ost_table) {
2785         for(i=0;i<nb_ostreams;i++) {
2786             ost = ost_table[i];
2787             if (ost) {
2788                 if (ost->st->stream_copy)
2789                     av_freep(&ost->st->codec->extradata);
2790                 if (ost->logfile) {
2791                     fclose(ost->logfile);
2792                     ost->logfile = NULL;
2793                 }
2794                 av_fifo_free(ost->fifo); /* works even if fifo is not
2795                                              initialized but set to zero */
2796                 av_freep(&ost->st->codec->subtitle_header);
2797                 av_free(ost->pict_tmp.data[0]);
2798                 av_free(ost->forced_kf_pts);
2799                 if (ost->video_resample)
2800                     sws_freeContext(ost->img_resample_ctx);
2801                 if (ost->resample)
2802                     audio_resample_close(ost->resample);
2803                 if (ost->reformat_ctx)
2804                     av_audio_convert_free(ost->reformat_ctx);
2805                 av_free(ost);
2806             }
2807         }
2808         av_free(ost_table);
2809     }
2810     return ret;
2811 }
2812
2813 static void opt_format(const char *arg)
2814 {
2815     last_asked_format = arg;
2816 }
2817
2818 static void opt_video_rc_override_string(const char *arg)
2819 {
2820     video_rc_override_string = arg;
2821 }
2822
2823 static int opt_me_threshold(const char *opt, const char *arg)
2824 {
2825     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2826     return 0;
2827 }
2828
2829 static int opt_verbose(const char *opt, const char *arg)
2830 {
2831     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2832     return 0;
2833 }
2834
2835 static int opt_frame_rate(const char *opt, const char *arg)
2836 {
2837     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2838         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2839         ffmpeg_exit(1);
2840     }
2841     return 0;
2842 }
2843
2844 static int opt_bitrate(const char *opt, const char *arg)
2845 {
2846     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2847
2848     opt_default(opt, arg);
2849
2850     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2851         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2852
2853     return 0;
2854 }
2855
2856 static int opt_frame_crop(const char *opt, const char *arg)
2857 {
2858     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2859     return AVERROR(EINVAL);
2860 }
2861
2862 static void opt_frame_size(const char *arg)
2863 {
2864     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2865         fprintf(stderr, "Incorrect frame size\n");
2866         ffmpeg_exit(1);
2867     }
2868 }
2869
2870 static int opt_pad(const char *opt, const char *arg) {
2871     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2872     return -1;
2873 }
2874
2875 static void opt_frame_pix_fmt(const char *arg)
2876 {
2877     if (strcmp(arg, "list")) {
2878         frame_pix_fmt = av_get_pix_fmt(arg);
2879         if (frame_pix_fmt == PIX_FMT_NONE) {
2880             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2881             ffmpeg_exit(1);
2882         }
2883     } else {
2884         show_pix_fmts();
2885         ffmpeg_exit(0);
2886     }
2887 }
2888
2889 static void opt_frame_aspect_ratio(const char *arg)
2890 {
2891     int x = 0, y = 0;
2892     double ar = 0;
2893     const char *p;
2894     char *end;
2895
2896     p = strchr(arg, ':');
2897     if (p) {
2898         x = strtol(arg, &end, 10);
2899         if (end == p)
2900             y = strtol(end+1, &end, 10);
2901         if (x > 0 && y > 0)
2902             ar = (double)x / (double)y;
2903     } else
2904         ar = strtod(arg, NULL);
2905
2906     if (!ar) {
2907         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2908         ffmpeg_exit(1);
2909     }
2910     frame_aspect_ratio = ar;
2911 }
2912
2913 static int opt_metadata(const char *opt, const char *arg)
2914 {
2915     char *mid= strchr(arg, '=');
2916
2917     if(!mid){
2918         fprintf(stderr, "Missing =\n");
2919         ffmpeg_exit(1);
2920     }
2921     *mid++= 0;
2922
2923     av_metadata_set2(&metadata, arg, mid, 0);
2924
2925     return 0;
2926 }
2927
2928 static int opt_qscale(const char *opt, const char *arg)
2929 {
2930     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2931     if (video_qscale <= 0 || video_qscale > 255) {
2932         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2933         return AVERROR(EINVAL);
2934     }
2935     return 0;
2936 }
2937
2938 static int opt_top_field_first(const char *opt, const char *arg)
2939 {
2940     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2941     return 0;
2942 }
2943
2944 static int opt_thread_count(const char *opt, const char *arg)
2945 {
2946     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2947 #if !HAVE_THREADS
2948     if (verbose >= 0)
2949         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2950 #endif
2951     return 0;
2952 }
2953
2954 static void opt_audio_sample_fmt(const char *arg)
2955 {
2956     if (strcmp(arg, "list")) {
2957         audio_sample_fmt = av_get_sample_fmt(arg);
2958         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2959             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2960             ffmpeg_exit(1);
2961         }
2962     } else {
2963         int i;
2964         char fmt_str[128];
2965         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2966             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2967         ffmpeg_exit(0);
2968     }
2969 }
2970
2971 static int opt_audio_rate(const char *opt, const char *arg)
2972 {
2973     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2974     return 0;
2975 }
2976
2977 static int opt_audio_channels(const char *opt, const char *arg)
2978 {
2979     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2980     return 0;
2981 }
2982
2983 static int opt_video_channel(const char *opt, const char *arg)
2984 {
2985     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2986     return 0;
2987 }
2988
2989 static void opt_video_standard(const char *arg)
2990 {
2991     video_standard = av_strdup(arg);
2992 }
2993
2994 static void opt_codec(int *pstream_copy, char **pcodec_name,
2995                       int codec_type, const char *arg)
2996 {
2997     av_freep(pcodec_name);
2998     if (!strcmp(arg, "copy")) {
2999         *pstream_copy = 1;
3000     } else {
3001         *pcodec_name = av_strdup(arg);
3002     }
3003 }
3004
3005 static void opt_audio_codec(const char *arg)
3006 {
3007     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
3008 }
3009
3010 static void opt_video_codec(const char *arg)
3011 {
3012     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
3013 }
3014
3015 static void opt_subtitle_codec(const char *arg)
3016 {
3017     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
3018 }
3019
3020 static int opt_codec_tag(const char *opt, const char *arg)
3021 {
3022     char *tail;
3023     uint32_t *codec_tag;
3024
3025     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3026                 !strcmp(opt, "vtag") ? &video_codec_tag :
3027                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3028     if (!codec_tag)
3029         return -1;
3030
3031     *codec_tag = strtol(arg, &tail, 0);
3032     if (!tail || *tail)
3033         *codec_tag = AV_RL32(arg);
3034
3035     return 0;
3036 }
3037
3038 static void opt_map(const char *arg)
3039 {
3040     AVStreamMap *m;
3041     char *p;
3042
3043     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3044     m = &stream_maps[nb_stream_maps-1];
3045
3046     m->file_index = strtol(arg, &p, 0);
3047     if (*p)
3048         p++;
3049
3050     m->stream_index = strtol(p, &p, 0);
3051     if (*p) {
3052         p++;
3053         m->sync_file_index = strtol(p, &p, 0);
3054         if (*p)
3055             p++;
3056         m->sync_stream_index = strtol(p, &p, 0);
3057     } else {
3058         m->sync_file_index = m->file_index;
3059         m->sync_stream_index = m->stream_index;
3060     }
3061 }
3062
3063 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3064 {
3065     *endptr = arg;
3066     if (*arg == ',') {
3067         *type = *(++arg);
3068         switch (*arg) {
3069         case 'g':
3070             break;
3071         case 's':
3072         case 'c':
3073         case 'p':
3074             *index = strtol(++arg, endptr, 0);
3075             break;
3076         default:
3077             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3078             ffmpeg_exit(1);
3079         }
3080     } else
3081         *type = 'g';
3082 }
3083
3084 static void opt_map_metadata(const char *arg)
3085 {
3086     AVMetaDataMap *m, *m1;
3087     char *p;
3088
3089     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3090                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3091
3092     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3093     m->file = strtol(arg, &p, 0);
3094     parse_meta_type(p, &m->type, &m->index, &p);
3095     if (*p)
3096         p++;
3097
3098     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3099     m1->file = strtol(p, &p, 0);
3100     parse_meta_type(p, &m1->type, &m1->index, &p);
3101
3102     if (m->type == 'g' || m1->type == 'g')
3103         metadata_global_autocopy = 0;
3104     if (m->type == 's' || m1->type == 's')
3105         metadata_streams_autocopy = 0;
3106     if (m->type == 'c' || m1->type == 'c')
3107         metadata_chapters_autocopy = 0;
3108 }
3109
3110 static void opt_map_meta_data(const char *arg)
3111 {
3112     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3113                     "Use -map_metadata instead.\n");
3114     opt_map_metadata(arg);
3115 }
3116
3117 static void opt_map_chapters(const char *arg)
3118 {
3119     AVChapterMap *c;
3120     char *p;
3121
3122     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3123                               nb_chapter_maps + 1);
3124     c = &chapter_maps[nb_chapter_maps - 1];
3125     c->out_file = strtol(arg, &p, 0);
3126     if (*p)
3127         p++;
3128
3129     c->in_file = strtol(p, &p, 0);
3130 }
3131
3132 static void opt_input_ts_scale(const char *arg)
3133 {
3134     unsigned int stream;
3135     double scale;
3136     char *p;
3137
3138     stream = strtol(arg, &p, 0);
3139     if (*p)
3140         p++;
3141     scale= strtod(p, &p);
3142
3143     if(stream >= MAX_STREAMS)
3144         ffmpeg_exit(1);
3145
3146     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);
3147     input_files_ts_scale[nb_input_files][stream]= scale;
3148 }
3149
3150 static int opt_recording_time(const char *opt, const char *arg)
3151 {
3152     recording_time = parse_time_or_die(opt, arg, 1);
3153     return 0;
3154 }
3155
3156 static int opt_start_time(const char *opt, const char *arg)
3157 {
3158     start_time = parse_time_or_die(opt, arg, 1);
3159     return 0;
3160 }
3161
3162 static int opt_recording_timestamp(const char *opt, const char *arg)
3163 {
3164     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3165     return 0;
3166 }
3167
3168 static int opt_input_ts_offset(const char *opt, const char *arg)
3169 {
3170     input_ts_offset = parse_time_or_die(opt, arg, 1);
3171     return 0;
3172 }
3173
3174 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3175 {
3176     const char *codec_string = encoder ? "encoder" : "decoder";
3177     AVCodec *codec;
3178
3179     if(!name)
3180         return CODEC_ID_NONE;
3181     codec = encoder ?
3182         avcodec_find_encoder_by_name(name) :
3183         avcodec_find_decoder_by_name(name);
3184     if(!codec) {
3185         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3186         ffmpeg_exit(1);
3187     }
3188     if(codec->type != type) {
3189         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3190         ffmpeg_exit(1);
3191     }
3192     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3193        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3194         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3195                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3196                 codec_string, codec->name);
3197         codec = encoder ?
3198             avcodec_find_encoder(codec->id) :
3199             avcodec_find_decoder(codec->id);
3200         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3201             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3202                     codec_string, codec->name);
3203         ffmpeg_exit(1);
3204     }
3205     return codec->id;
3206 }
3207
3208 static void opt_input_file(const char *filename)
3209 {
3210     AVFormatContext *ic;
3211     AVFormatParameters params, *ap = &params;
3212     AVInputFormat *file_iformat = NULL;
3213     int err, i, ret, rfps, rfps_base;
3214     int64_t timestamp;
3215
3216     if (last_asked_format) {
3217         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3218             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3219             ffmpeg_exit(1);
3220         }
3221         last_asked_format = NULL;
3222     }
3223
3224     if (!strcmp(filename, "-"))
3225         filename = "pipe:";
3226
3227     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3228                     !strcmp(filename, "/dev/stdin");
3229
3230     /* get default parameters from command line */
3231     ic = avformat_alloc_context();
3232     if (!ic) {
3233         print_error(filename, AVERROR(ENOMEM));
3234         ffmpeg_exit(1);
3235     }
3236
3237     memset(ap, 0, sizeof(*ap));
3238     ap->prealloced_context = 1;
3239     ap->sample_rate = audio_sample_rate;
3240     ap->channels = audio_channels;
3241     ap->time_base.den = frame_rate.num;
3242     ap->time_base.num = frame_rate.den;
3243     ap->width = frame_width;
3244     ap->height = frame_height;
3245     ap->pix_fmt = frame_pix_fmt;
3246    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3247     ap->channel = video_channel;
3248     ap->standard = video_standard;
3249
3250     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3251
3252     ic->video_codec_id   =
3253         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3254                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3255     ic->audio_codec_id   =
3256         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3257                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3258     ic->subtitle_codec_id=
3259         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3260                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3261     ic->flags |= AVFMT_FLAG_NONBLOCK;
3262
3263     /* open the input file with generic libav function */
3264     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3265     if (err < 0) {
3266         print_error(filename, err);
3267         ffmpeg_exit(1);
3268     }
3269     if(opt_programid) {
3270         int i, j;
3271         int found=0;
3272         for(i=0; i<ic->nb_streams; i++){
3273             ic->streams[i]->discard= AVDISCARD_ALL;
3274         }
3275         for(i=0; i<ic->nb_programs; i++){
3276             AVProgram *p= ic->programs[i];
3277             if(p->id != opt_programid){
3278                 p->discard = AVDISCARD_ALL;
3279             }else{
3280                 found=1;
3281                 for(j=0; j<p->nb_stream_indexes; j++){
3282                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3283                 }
3284             }
3285         }
3286         if(!found){
3287             fprintf(stderr, "Specified program id not found\n");
3288             ffmpeg_exit(1);
3289         }
3290         opt_programid=0;
3291     }
3292
3293     ic->loop_input = loop_input;
3294
3295     /* If not enough info to get the stream parameters, we decode the
3296        first frames to get it. (used in mpeg case for example) */
3297     ret = av_find_stream_info(ic);
3298     if (ret < 0 && verbose >= 0) {
3299         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3300         av_close_input_file(ic);
3301         ffmpeg_exit(1);
3302     }
3303
3304     timestamp = start_time;
3305     /* add the stream start time */
3306     if (ic->start_time != AV_NOPTS_VALUE)
3307         timestamp += ic->start_time;
3308
3309     /* if seeking requested, we execute it */
3310     if (start_time != 0) {
3311         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3312         if (ret < 0) {
3313             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3314                     filename, (double)timestamp / AV_TIME_BASE);
3315         }
3316         /* reset seek info */
3317         start_time = 0;
3318     }
3319
3320     /* update the current parameters so that they match the one of the input stream */
3321     for(i=0;i<ic->nb_streams;i++) {
3322         AVStream *st = ic->streams[i];
3323         AVCodecContext *dec = st->codec;
3324         dec->thread_count = thread_count;
3325         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3326         switch (dec->codec_type) {
3327         case AVMEDIA_TYPE_AUDIO:
3328             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3329             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]);
3330             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3331             channel_layout    = dec->channel_layout;
3332             audio_channels    = dec->channels;
3333             audio_sample_rate = dec->sample_rate;
3334             audio_sample_fmt  = dec->sample_fmt;
3335             if(audio_disable)
3336                 st->discard= AVDISCARD_ALL;
3337             /* Note that av_find_stream_info can add more streams, and we
3338              * currently have no chance of setting up lowres decoding
3339              * early enough for them. */
3340             if (dec->lowres)
3341                 audio_sample_rate >>= dec->lowres;
3342             break;
3343         case AVMEDIA_TYPE_VIDEO:
3344             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3345             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]);
3346             frame_height = dec->height;
3347             frame_width  = dec->width;
3348             frame_pix_fmt = dec->pix_fmt;
3349             rfps      = ic->streams[i]->r_frame_rate.num;
3350             rfps_base = ic->streams[i]->r_frame_rate.den;
3351             if (dec->lowres) {
3352                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3353                 frame_height >>= dec->lowres;
3354                 frame_width  >>= dec->lowres;
3355                 dec->height = frame_height;
3356                 dec->width  = frame_width;
3357             }
3358             if(me_threshold)
3359                 dec->debug |= FF_DEBUG_MV;
3360
3361             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3362
3363                 if (verbose >= 0)
3364                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3365                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3366
3367                     (float)rfps / rfps_base, rfps, rfps_base);
3368             }
3369             /* update the current frame rate to match the stream frame rate */
3370             frame_rate.num = rfps;
3371             frame_rate.den = rfps_base;
3372
3373             if(video_disable)
3374                 st->discard= AVDISCARD_ALL;
3375             else if(video_discard)
3376                 st->discard= video_discard;
3377             break;
3378         case AVMEDIA_TYPE_DATA:
3379             break;
3380         case AVMEDIA_TYPE_SUBTITLE:
3381             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3382             if(subtitle_disable)
3383                 st->discard = AVDISCARD_ALL;
3384             break;
3385         case AVMEDIA_TYPE_ATTACHMENT:
3386         case AVMEDIA_TYPE_UNKNOWN:
3387             break;
3388         default:
3389             abort();
3390         }
3391     }
3392
3393     input_files[nb_input_files] = ic;
3394     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3395     /* dump the file content */
3396     if (verbose >= 0)
3397         av_dump_format(ic, nb_input_files, filename, 0);
3398
3399     nb_input_files++;
3400
3401     video_channel = 0;
3402
3403     av_freep(&video_codec_name);
3404     av_freep(&audio_codec_name);
3405     av_freep(&subtitle_codec_name);
3406 }
3407
3408 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3409                                          int *has_subtitle_ptr)
3410 {
3411     int has_video, has_audio, has_subtitle, i, j;
3412     AVFormatContext *ic;
3413
3414     has_video = 0;
3415     has_audio = 0;
3416     has_subtitle = 0;
3417     for(j=0;j<nb_input_files;j++) {
3418         ic = input_files[j];
3419         for(i=0;i<ic->nb_streams;i++) {
3420             AVCodecContext *enc = ic->streams[i]->codec;
3421             switch(enc->codec_type) {
3422             case AVMEDIA_TYPE_AUDIO:
3423                 has_audio = 1;
3424                 break;
3425             case AVMEDIA_TYPE_VIDEO:
3426                 has_video = 1;
3427                 break;
3428             case AVMEDIA_TYPE_SUBTITLE:
3429                 has_subtitle = 1;
3430                 break;
3431             case AVMEDIA_TYPE_DATA:
3432             case AVMEDIA_TYPE_ATTACHMENT:
3433             case AVMEDIA_TYPE_UNKNOWN:
3434                 break;
3435             default:
3436                 abort();
3437             }
3438         }
3439     }
3440     *has_video_ptr = has_video;
3441     *has_audio_ptr = has_audio;
3442     *has_subtitle_ptr = has_subtitle;
3443 }
3444
3445 static void new_video_stream(AVFormatContext *oc, int file_idx)
3446 {
3447     AVStream *st;
3448     AVOutputStream *ost;
3449     AVCodecContext *video_enc;
3450     enum CodecID codec_id = CODEC_ID_NONE;
3451     AVCodec *codec= NULL;
3452
3453     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3454     if (!st) {
3455         fprintf(stderr, "Could not alloc stream\n");
3456         ffmpeg_exit(1);
3457     }
3458     ost = new_output_stream(oc, file_idx);
3459
3460     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3461     if(!video_stream_copy){
3462         if (video_codec_name) {
3463             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3464                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3465             codec = avcodec_find_encoder_by_name(video_codec_name);
3466             output_codecs[nb_output_codecs-1] = codec;
3467         } else {
3468             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3469             codec = avcodec_find_encoder(codec_id);
3470         }
3471         ost->frame_aspect_ratio = frame_aspect_ratio;
3472         frame_aspect_ratio = 0;
3473 #if CONFIG_AVFILTER
3474         ost->avfilter= vfilters;
3475         vfilters= NULL;
3476 #endif
3477     }
3478
3479     avcodec_get_context_defaults3(st->codec, codec);
3480     ost->bitstream_filters = video_bitstream_filters;
3481     video_bitstream_filters= NULL;
3482
3483     st->codec->thread_count= thread_count;
3484
3485     video_enc = st->codec;
3486
3487     if(video_codec_tag)
3488         video_enc->codec_tag= video_codec_tag;
3489
3490     if(   (video_global_header&1)
3491        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3492         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3493         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3494     }
3495     if(video_global_header&2){
3496         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3497         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3498     }
3499
3500     if (video_stream_copy) {
3501         st->stream_copy = 1;
3502         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3503         video_enc->sample_aspect_ratio =
3504         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3505     } else {
3506         const char *p;
3507         int i;
3508         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3509
3510         video_enc->codec_id = codec_id;
3511         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3512
3513         if (codec && codec->supported_framerates && !force_fps)
3514             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3515         video_enc->time_base.den = fps.num;
3516         video_enc->time_base.num = fps.den;
3517
3518         video_enc->width = frame_width;
3519         video_enc->height = frame_height;
3520         video_enc->pix_fmt = frame_pix_fmt;
3521         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3522         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3523
3524         choose_pixel_fmt(st, codec);
3525
3526         if (intra_only)
3527             video_enc->gop_size = 0;
3528         if (video_qscale || same_quality) {
3529             video_enc->flags |= CODEC_FLAG_QSCALE;
3530             video_enc->global_quality=
3531                 st->quality = FF_QP2LAMBDA * video_qscale;
3532         }
3533
3534         if(intra_matrix)
3535             video_enc->intra_matrix = intra_matrix;
3536         if(inter_matrix)
3537             video_enc->inter_matrix = inter_matrix;
3538
3539         p= video_rc_override_string;
3540         for(i=0; p; i++){
3541             int start, end, q;
3542             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3543             if(e!=3){
3544                 fprintf(stderr, "error parsing rc_override\n");
3545                 ffmpeg_exit(1);
3546             }
3547             video_enc->rc_override=
3548                 av_realloc(video_enc->rc_override,
3549                            sizeof(RcOverride)*(i+1));
3550             video_enc->rc_override[i].start_frame= start;
3551             video_enc->rc_override[i].end_frame  = end;
3552             if(q>0){
3553                 video_enc->rc_override[i].qscale= q;
3554                 video_enc->rc_override[i].quality_factor= 1.0;
3555             }
3556             else{
3557                 video_enc->rc_override[i].qscale= 0;
3558                 video_enc->rc_override[i].quality_factor= -q/100.0;
3559             }
3560             p= strchr(p, '/');
3561             if(p) p++;
3562         }
3563         video_enc->rc_override_count=i;
3564         if (!video_enc->rc_initial_buffer_occupancy)
3565             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3566         video_enc->me_threshold= me_threshold;
3567         video_enc->intra_dc_precision= intra_dc_precision - 8;
3568
3569         if (do_psnr)
3570             video_enc->flags|= CODEC_FLAG_PSNR;
3571
3572         /* two pass mode */
3573         if (do_pass) {
3574             if (do_pass == 1) {
3575                 video_enc->flags |= CODEC_FLAG_PASS1;
3576             } else {
3577                 video_enc->flags |= CODEC_FLAG_PASS2;
3578             }
3579         }
3580
3581         if (forced_key_frames)
3582             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3583     }
3584     if (video_language) {
3585         av_metadata_set2(&st->metadata, "language", video_language, 0);
3586         av_freep(&video_language);
3587     }
3588
3589     /* reset some key parameters */
3590     video_disable = 0;
3591     av_freep(&video_codec_name);
3592     av_freep(&forced_key_frames);
3593     video_stream_copy = 0;
3594     frame_pix_fmt = PIX_FMT_NONE;
3595 }
3596
3597 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3598 {
3599     AVStream *st;
3600     AVOutputStream *ost;
3601     AVCodec *codec= NULL;
3602     AVCodecContext *audio_enc;
3603     enum CodecID codec_id = CODEC_ID_NONE;
3604
3605     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3606     if (!st) {
3607         fprintf(stderr, "Could not alloc stream\n");
3608         ffmpeg_exit(1);
3609     }
3610     ost = new_output_stream(oc, file_idx);
3611
3612     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3613     if(!audio_stream_copy){
3614         if (audio_codec_name) {
3615             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3616                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3617             codec = avcodec_find_encoder_by_name(audio_codec_name);
3618             output_codecs[nb_output_codecs-1] = codec;
3619         } else {
3620             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3621             codec = avcodec_find_encoder(codec_id);
3622         }
3623     }
3624
3625     avcodec_get_context_defaults3(st->codec, codec);
3626
3627     ost->bitstream_filters = audio_bitstream_filters;
3628     audio_bitstream_filters= NULL;
3629
3630     st->codec->thread_count= thread_count;
3631
3632     audio_enc = st->codec;
3633     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3634
3635     if(audio_codec_tag)
3636         audio_enc->codec_tag= audio_codec_tag;
3637
3638     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3639         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3640         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3641     }
3642     if (audio_stream_copy) {
3643         st->stream_copy = 1;
3644         audio_enc->channels = audio_channels;
3645         audio_enc->sample_rate = audio_sample_rate;
3646     } else {
3647         audio_enc->codec_id = codec_id;
3648         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3649
3650         if (audio_qscale > QSCALE_NONE) {
3651             audio_enc->flags |= CODEC_FLAG_QSCALE;
3652             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3653         }
3654         audio_enc->channels = audio_channels;
3655         audio_enc->sample_fmt = audio_sample_fmt;