ffmpeg: reformat resample condition code in transcode()
[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 "libavcodec/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 #if !FF_API_MAX_STREAMS
117 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
118 #endif
119
120 static const char *last_asked_format = NULL;
121 static AVFormatContext *input_files[MAX_FILES];
122 static int64_t input_files_ts_offset[MAX_FILES];
123 static double *input_files_ts_scale[MAX_FILES] = {NULL};
124 static AVCodec **input_codecs = NULL;
125 static int nb_input_files = 0;
126 static int nb_input_codecs = 0;
127 static int nb_input_files_ts_scale[MAX_FILES] = {0};
128
129 static AVFormatContext *output_files[MAX_FILES];
130 static AVCodec **output_codecs = NULL;
131 static int nb_output_files = 0;
132 static int nb_output_codecs = 0;
133
134 static AVStreamMap *stream_maps = NULL;
135 static int nb_stream_maps;
136
137 /* first item specifies output metadata, second is input */
138 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
139 static int nb_meta_data_maps;
140 static int metadata_global_autocopy   = 1;
141 static int metadata_streams_autocopy  = 1;
142 static int metadata_chapters_autocopy = 1;
143
144 static AVChapterMap *chapter_maps = NULL;
145 static int nb_chapter_maps;
146
147 /* indexed by output file stream index */
148 static int *streamid_map = NULL;
149 static int nb_streamid_map = 0;
150
151 static int frame_width  = 0;
152 static int frame_height = 0;
153 static float frame_aspect_ratio = 0;
154 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
155 static int frame_bits_per_raw_sample = 0;
156 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
157 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
158 static AVRational frame_rate;
159 static float video_qscale = 0;
160 static uint16_t *intra_matrix = NULL;
161 static uint16_t *inter_matrix = NULL;
162 static const char *video_rc_override_string=NULL;
163 static int video_disable = 0;
164 static int video_discard = 0;
165 static char *video_codec_name = NULL;
166 static unsigned int video_codec_tag = 0;
167 static char *video_language = NULL;
168 static int same_quality = 0;
169 static int do_deinterlace = 0;
170 static int top_field_first = -1;
171 static int me_threshold = 0;
172 static int intra_dc_precision = 8;
173 static int loop_input = 0;
174 static int loop_output = AVFMT_NOOUTPUTLOOP;
175 static int qp_hist = 0;
176 #if CONFIG_AVFILTER
177 static char *vfilters = NULL;
178 #else
179 static unsigned int sws_flags = SWS_BICUBIC;
180 #endif
181
182 static int intra_only = 0;
183 static int audio_sample_rate = 44100;
184 static int64_t channel_layout = 0;
185 #define QSCALE_NONE -99999
186 static float audio_qscale = QSCALE_NONE;
187 static int audio_disable = 0;
188 static int audio_channels = 1;
189 static char  *audio_codec_name = NULL;
190 static unsigned int audio_codec_tag = 0;
191 static char *audio_language = NULL;
192
193 static int subtitle_disable = 0;
194 static char *subtitle_codec_name = NULL;
195 static char *subtitle_language = NULL;
196 static unsigned int subtitle_codec_tag = 0;
197
198 static float mux_preload= 0.5;
199 static float mux_max_delay= 0.7;
200
201 static int64_t recording_time = INT64_MAX;
202 static int64_t start_time = 0;
203 static int64_t recording_timestamp = 0;
204 static int64_t input_ts_offset = 0;
205 static int file_overwrite = 0;
206 static AVMetadata *metadata;
207 static int do_benchmark = 0;
208 static int do_hex_dump = 0;
209 static int do_pkt_dump = 0;
210 static int do_psnr = 0;
211 static int do_pass = 0;
212 static char *pass_logfilename_prefix = NULL;
213 static int audio_stream_copy = 0;
214 static int video_stream_copy = 0;
215 static int subtitle_stream_copy = 0;
216 static int video_sync_method= -1;
217 static int audio_sync_method= 0;
218 static float audio_drift_threshold= 0.1;
219 static int copy_ts= 0;
220 static int copy_tb;
221 static int opt_shortest = 0;
222 static int video_global_header = 0;
223 static char *vstats_filename;
224 static FILE *vstats_file;
225 static int opt_programid = 0;
226 static int copy_initial_nonkeyframes = 0;
227
228 static int rate_emu = 0;
229
230 static int  video_channel = 0;
231 static char *video_standard;
232
233 static int audio_volume = 256;
234
235 static int exit_on_error = 0;
236 static int using_stdin = 0;
237 static int verbose = 1;
238 static int daemon  = 0;
239 static int thread_count= 1;
240 static int q_pressed = 0;
241 static int64_t video_size = 0;
242 static int64_t audio_size = 0;
243 static int64_t extra_size = 0;
244 static int nb_frames_dup = 0;
245 static int nb_frames_drop = 0;
246 static int input_sync;
247 static uint64_t limit_filesize = 0;
248 static int force_fps = 0;
249 static char *forced_key_frames = NULL;
250
251 static float dts_delta_threshold = 10;
252
253 static int64_t timer_start;
254
255 static uint8_t *audio_buf;
256 static uint8_t *audio_out;
257 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
258
259 static short *samples;
260
261 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
262 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
263 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
264
265 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
266
267 struct AVInputStream;
268
269 typedef struct AVOutputStream {
270     int file_index;          /* file index */
271     int index;               /* stream index in the output file */
272     int source_index;        /* AVInputStream index */
273     AVStream *st;            /* stream in the output file */
274     int encoding_needed;     /* true if encoding needed for this stream */
275     int frame_number;
276     /* input pts and corresponding output pts
277        for A/V sync */
278     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
279     struct AVInputStream *sync_ist; /* input stream to sync against */
280     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
281     AVBitStreamFilterContext *bitstream_filters;
282     /* video only */
283     int video_resample;
284     AVFrame pict_tmp;      /* temporary image for resampling */
285     struct SwsContext *img_resample_ctx; /* for image resampling */
286     int resample_height;
287     int resample_width;
288     int resample_pix_fmt;
289
290     float frame_aspect_ratio;
291
292     /* forced key frames */
293     int64_t *forced_kf_pts;
294     int forced_kf_count;
295     int forced_kf_index;
296
297     /* audio only */
298     int audio_resample;
299     ReSampleContext *resample; /* for audio resampling */
300     int resample_sample_fmt;
301     int resample_channels;
302     int resample_sample_rate;
303     int reformat_pair;
304     AVAudioConvert *reformat_ctx;
305     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
306     FILE *logfile;
307
308 #if CONFIG_AVFILTER
309     AVFilterContext *output_video_filter;
310     AVFilterContext *input_video_filter;
311     AVFilterBufferRef *picref;
312     char *avfilter;
313     AVFilterGraph *graph;
314 #endif
315 } AVOutputStream;
316
317 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
318 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
319
320 typedef struct AVInputStream {
321     int file_index;
322     int index;
323     AVStream *st;
324     int discard;             /* true if stream data should be discarded */
325     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
326     int64_t sample_index;      /* current sample */
327
328     int64_t       start;     /* time when read started */
329     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
330                                 is not defined */
331     int64_t       pts;       /* current pts */
332     int is_start;            /* is 1 at the start and after a discontinuity */
333     int showed_multi_packet_warning;
334     int is_past_recording_time;
335 #if CONFIG_AVFILTER
336     AVFrame *filter_frame;
337     int has_filter_frame;
338 #endif
339 } AVInputStream;
340
341 typedef struct AVInputFile {
342     int eof_reached;      /* true if eof reached */
343     int ist_index;        /* index of first stream in ist_table */
344     int buffer_size;      /* current total buffer size */
345     int nb_streams;       /* nb streams we are aware of */
346 } AVInputFile;
347
348 #if HAVE_TERMIOS_H
349
350 /* init terminal so that we can grab keys */
351 static struct termios oldtty;
352 #endif
353
354 #if CONFIG_AVFILTER
355
356 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
357 {
358     AVFilterContext *last_filter, *filter;
359     /** filter graph containing all filters including input & output */
360     AVCodecContext *codec = ost->st->codec;
361     AVCodecContext *icodec = ist->st->codec;
362     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
363     AVRational sample_aspect_ratio;
364     char args[255];
365     int ret;
366
367     ost->graph = avfilter_graph_alloc();
368
369     if (ist->st->sample_aspect_ratio.num){
370         sample_aspect_ratio = ist->st->sample_aspect_ratio;
371     }else
372         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
373
374     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
375              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
376              sample_aspect_ratio.num, sample_aspect_ratio.den);
377
378     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
379                                        "src", args, NULL, ost->graph);
380     if (ret < 0)
381         return ret;
382     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
383                                        "out", NULL, &ffsink_ctx, ost->graph);
384     if (ret < 0)
385         return ret;
386     last_filter = ost->input_video_filter;
387
388     if (codec->width  != icodec->width || codec->height != icodec->height) {
389         snprintf(args, 255, "%d:%d:flags=0x%X",
390                  codec->width,
391                  codec->height,
392                  (int)av_get_int(sws_opts, "sws_flags", NULL));
393         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
394                                                 NULL, args, NULL, ost->graph)) < 0)
395             return ret;
396         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
397             return ret;
398         last_filter = filter;
399     }
400
401     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
402     ost->graph->scale_sws_opts = av_strdup(args);
403
404     if (ost->avfilter) {
405         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
406         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
407
408         outputs->name    = av_strdup("in");
409         outputs->filter_ctx = last_filter;
410         outputs->pad_idx = 0;
411         outputs->next    = NULL;
412
413         inputs->name    = av_strdup("out");
414         inputs->filter_ctx = ost->output_video_filter;
415         inputs->pad_idx = 0;
416         inputs->next    = NULL;
417
418         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
419             return ret;
420         av_freep(&ost->avfilter);
421     } else {
422         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
423             return ret;
424     }
425
426     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
427         return ret;
428
429     codec->width  = ost->output_video_filter->inputs[0]->w;
430     codec->height = ost->output_video_filter->inputs[0]->h;
431     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
432         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
433         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
434         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
435
436     return 0;
437 }
438 #endif /* CONFIG_AVFILTER */
439
440 static void term_exit(void)
441 {
442     av_log(NULL, AV_LOG_QUIET, "");
443 #if HAVE_TERMIOS_H
444     if(!daemon)
445         tcsetattr (0, TCSANOW, &oldtty);
446 #endif
447 }
448
449 static volatile int received_sigterm = 0;
450
451 static void
452 sigterm_handler(int sig)
453 {
454     received_sigterm = sig;
455     q_pressed++;
456     term_exit();
457 }
458
459 static void term_init(void)
460 {
461 #if HAVE_TERMIOS_H
462     if(!daemon){
463     struct termios tty;
464
465     tcgetattr (0, &tty);
466     oldtty = tty;
467     atexit(term_exit);
468
469     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
470                           |INLCR|IGNCR|ICRNL|IXON);
471     tty.c_oflag |= OPOST;
472     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
473     tty.c_cflag &= ~(CSIZE|PARENB);
474     tty.c_cflag |= CS8;
475     tty.c_cc[VMIN] = 1;
476     tty.c_cc[VTIME] = 0;
477
478     tcsetattr (0, TCSANOW, &tty);
479     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
480     }
481 #endif
482
483     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
484     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
485 #ifdef SIGXCPU
486     signal(SIGXCPU, sigterm_handler);
487 #endif
488 }
489
490 /* read a key without blocking */
491 static int read_key(void)
492 {
493 #if HAVE_TERMIOS_H
494     int n = 1;
495     unsigned char ch;
496     struct timeval tv;
497     fd_set rfds;
498
499     if(daemon)
500         return -1;
501
502     FD_ZERO(&rfds);
503     FD_SET(0, &rfds);
504     tv.tv_sec = 0;
505     tv.tv_usec = 0;
506     n = select(1, &rfds, NULL, NULL, &tv);
507     if (n > 0) {
508         n = read(0, &ch, 1);
509         if (n == 1)
510             return ch;
511
512         return n;
513     }
514 #elif HAVE_KBHIT
515     if(kbhit())
516         return(getch());
517 #endif
518     return -1;
519 }
520
521 static int decode_interrupt_cb(void)
522 {
523     q_pressed += read_key() == 'q';
524     return q_pressed > 1;
525 }
526
527 static int ffmpeg_exit(int ret)
528 {
529     int i;
530
531     /* close files */
532     for(i=0;i<nb_output_files;i++) {
533         AVFormatContext *s = output_files[i];
534         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
535             avio_close(s->pb);
536         avformat_free_context(s);
537         av_free(output_streams_for_file[i]);
538     }
539     for(i=0;i<nb_input_files;i++) {
540         av_close_input_file(input_files[i]);
541         av_free(input_files_ts_scale[i]);
542     }
543
544     av_free(intra_matrix);
545     av_free(inter_matrix);
546
547     if (vstats_file)
548         fclose(vstats_file);
549     av_free(vstats_filename);
550
551     av_free(streamid_map);
552     av_free(input_codecs);
553     av_free(output_codecs);
554     av_free(stream_maps);
555     av_free(meta_data_maps);
556
557     av_free(video_codec_name);
558     av_free(audio_codec_name);
559     av_free(subtitle_codec_name);
560
561     av_free(video_standard);
562
563     uninit_opts();
564     av_free(audio_buf);
565     av_free(audio_out);
566     allocated_audio_buf_size= allocated_audio_out_size= 0;
567     av_free(samples);
568
569 #if CONFIG_AVFILTER
570     avfilter_uninit();
571 #endif
572
573     if (received_sigterm) {
574         fprintf(stderr,
575             "Received signal %d: terminating.\n",
576             (int) received_sigterm);
577         exit (255);
578     }
579
580     exit(ret); /* not all OS-es handle main() return value */
581     return ret;
582 }
583
584 /* similar to ff_dynarray_add() and av_fast_realloc() */
585 static void *grow_array(void *array, int elem_size, int *size, int new_size)
586 {
587     if (new_size >= INT_MAX / elem_size) {
588         fprintf(stderr, "Array too big.\n");
589         ffmpeg_exit(1);
590     }
591     if (*size < new_size) {
592         uint8_t *tmp = av_realloc(array, new_size*elem_size);
593         if (!tmp) {
594             fprintf(stderr, "Could not alloc buffer.\n");
595             ffmpeg_exit(1);
596         }
597         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
598         *size = new_size;
599         return tmp;
600     }
601     return array;
602 }
603
604 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
605 {
606     if(codec && codec->sample_fmts){
607         const enum AVSampleFormat *p= codec->sample_fmts;
608         for(; *p!=-1; p++){
609             if(*p == st->codec->sample_fmt)
610                 break;
611         }
612         if (*p == -1) {
613             av_log(NULL, AV_LOG_WARNING,
614                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
615                    av_get_sample_fmt_name(st->codec->sample_fmt),
616                    codec->name,
617                    av_get_sample_fmt_name(codec->sample_fmts[0]));
618             st->codec->sample_fmt = codec->sample_fmts[0];
619         }
620     }
621 }
622
623 static void choose_sample_rate(AVStream *st, AVCodec *codec)
624 {
625     if(codec && codec->supported_samplerates){
626         const int *p= codec->supported_samplerates;
627         int best=0;
628         int best_dist=INT_MAX;
629         for(; *p; p++){
630             int dist= abs(st->codec->sample_rate - *p);
631             if(dist < best_dist){
632                 best_dist= dist;
633                 best= *p;
634             }
635         }
636         if(best_dist){
637             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
638         }
639         st->codec->sample_rate= best;
640     }
641 }
642
643 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
644 {
645     if(codec && codec->pix_fmts){
646         const enum PixelFormat *p= codec->pix_fmts;
647         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
648             if(st->codec->codec_id==CODEC_ID_MJPEG){
649                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
650             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
651                 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};
652             }
653         }
654         for(; *p!=-1; p++){
655             if(*p == st->codec->pix_fmt)
656                 break;
657         }
658         if (*p == -1) {
659             if(st->codec->pix_fmt != PIX_FMT_NONE)
660             av_log(NULL, AV_LOG_WARNING,
661                    "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
662                    av_pix_fmt_descriptors[st->codec->pix_fmt].name,
663                    codec->name,
664                    av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
665             st->codec->pix_fmt = codec->pix_fmts[0];
666         }
667     }
668 }
669
670 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
671 {
672     int idx = oc->nb_streams - 1;
673     AVOutputStream *ost;
674
675     output_streams_for_file[file_idx] =
676         grow_array(output_streams_for_file[file_idx],
677                    sizeof(*output_streams_for_file[file_idx]),
678                    &nb_output_streams_for_file[file_idx],
679                    oc->nb_streams);
680     ost = output_streams_for_file[file_idx][idx] =
681         av_mallocz(sizeof(AVOutputStream));
682     if (!ost) {
683         fprintf(stderr, "Could not alloc output stream\n");
684         ffmpeg_exit(1);
685     }
686     ost->file_index = file_idx;
687     ost->index = idx;
688     return ost;
689 }
690
691 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
692 {
693     int i, err;
694     AVFormatContext *ic;
695     int nopts = 0;
696
697     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
698     if (err < 0)
699         return err;
700     /* copy stream format */
701     s->nb_streams = 0;
702     for(i=0;i<ic->nb_streams;i++) {
703         AVStream *st;
704         AVCodec *codec;
705
706         s->nb_streams++;
707
708         // FIXME: a more elegant solution is needed
709         st = av_mallocz(sizeof(AVStream));
710         memcpy(st, ic->streams[i], sizeof(AVStream));
711         st->codec = avcodec_alloc_context();
712         if (!st->codec) {
713             print_error(filename, AVERROR(ENOMEM));
714             ffmpeg_exit(1);
715         }
716         avcodec_copy_context(st->codec, ic->streams[i]->codec);
717         s->streams[i] = st;
718
719         codec = avcodec_find_encoder(st->codec->codec_id);
720         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
721             if (audio_stream_copy) {
722                 st->stream_copy = 1;
723             } else
724                 choose_sample_fmt(st, codec);
725         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
726             if (video_stream_copy) {
727                 st->stream_copy = 1;
728             } else
729                 choose_pixel_fmt(st, codec);
730         }
731
732         if(st->codec->flags & CODEC_FLAG_BITEXACT)
733             nopts = 1;
734
735         new_output_stream(s, nb_output_files);
736     }
737
738     if (!nopts)
739         s->timestamp = av_gettime();
740
741     av_close_input_file(ic);
742     return 0;
743 }
744
745 static double
746 get_sync_ipts(const AVOutputStream *ost)
747 {
748     const AVInputStream *ist = ost->sync_ist;
749     return (double)(ist->pts - start_time)/AV_TIME_BASE;
750 }
751
752 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
753     int ret;
754
755     while(bsfc){
756         AVPacket new_pkt= *pkt;
757         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
758                                           &new_pkt.data, &new_pkt.size,
759                                           pkt->data, pkt->size,
760                                           pkt->flags & AV_PKT_FLAG_KEY);
761         if(a>0){
762             av_free_packet(pkt);
763             new_pkt.destruct= av_destruct_packet;
764         } else if(a<0){
765             fprintf(stderr, "%s failed for stream %d, codec %s",
766                     bsfc->filter->name, pkt->stream_index,
767                     avctx->codec ? avctx->codec->name : "copy");
768             print_error("", a);
769             if (exit_on_error)
770                 ffmpeg_exit(1);
771         }
772         *pkt= new_pkt;
773
774         bsfc= bsfc->next;
775     }
776
777     ret= av_interleaved_write_frame(s, pkt);
778     if(ret < 0){
779         print_error("av_interleaved_write_frame()", ret);
780         ffmpeg_exit(1);
781     }
782 }
783
784 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
785
786 static void do_audio_out(AVFormatContext *s,
787                          AVOutputStream *ost,
788                          AVInputStream *ist,
789                          unsigned char *buf, int size)
790 {
791     uint8_t *buftmp;
792     int64_t audio_out_size, audio_buf_size;
793     int64_t allocated_for_size= size;
794
795     int size_out, frame_bytes, ret, resample_changed;
796     AVCodecContext *enc= ost->st->codec;
797     AVCodecContext *dec= ist->st->codec;
798     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
799     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
800     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
801
802 need_realloc:
803     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
804     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
805     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
806     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
807     audio_buf_size*= osize*enc->channels;
808
809     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
810     if(coded_bps > 8*osize)
811         audio_out_size= audio_out_size * coded_bps / (8*osize);
812     audio_out_size += FF_MIN_BUFFER_SIZE;
813
814     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
815         fprintf(stderr, "Buffer sizes too large\n");
816         ffmpeg_exit(1);
817     }
818
819     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
820     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
821     if (!audio_buf || !audio_out){
822         fprintf(stderr, "Out of memory in do_audio_out\n");
823         ffmpeg_exit(1);
824     }
825
826     if (enc->channels != dec->channels)
827         ost->audio_resample = 1;
828
829     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
830                        ost->resample_channels    != dec->channels   ||
831                        ost->resample_sample_rate != dec->sample_rate;
832
833     if ((ost->audio_resample && !ost->resample) || resample_changed) {
834         if (resample_changed) {
835             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",
836                    ist->file_index, ist->index,
837                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
838                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
839             ost->resample_sample_fmt  = dec->sample_fmt;
840             ost->resample_channels    = dec->channels;
841             ost->resample_sample_rate = dec->sample_rate;
842             if (ost->resample)
843                 audio_resample_close(ost->resample);
844         }
845         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
846         if (audio_sync_method <= 1 &&
847             ost->resample_sample_fmt  == enc->sample_fmt &&
848             ost->resample_channels    == enc->channels   &&
849             ost->resample_sample_rate == enc->sample_rate) {
850             ost->resample = NULL;
851             ost->audio_resample = 0;
852         } else {
853             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
854                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
855             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
856                                                    enc->sample_rate, dec->sample_rate,
857                                                    enc->sample_fmt,  dec->sample_fmt,
858                                                    16, 10, 0, 0.8);
859             if (!ost->resample) {
860                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
861                         dec->channels, dec->sample_rate,
862                         enc->channels, enc->sample_rate);
863                 ffmpeg_exit(1);
864             }
865         }
866     }
867
868 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
869     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
870         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
871         if (ost->reformat_ctx)
872             av_audio_convert_free(ost->reformat_ctx);
873         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
874                                                    dec->sample_fmt, 1, NULL, 0);
875         if (!ost->reformat_ctx) {
876             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
877                 av_get_sample_fmt_name(dec->sample_fmt),
878                 av_get_sample_fmt_name(enc->sample_fmt));
879             ffmpeg_exit(1);
880         }
881         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
882     }
883
884     if(audio_sync_method){
885         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
886                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
887         double idelta= delta*dec->sample_rate / enc->sample_rate;
888         int byte_delta= ((int)idelta)*2*dec->channels;
889
890         //FIXME resample delay
891         if(fabs(delta) > 50){
892             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
893                 if(byte_delta < 0){
894                     byte_delta= FFMAX(byte_delta, -size);
895                     size += byte_delta;
896                     buf  -= byte_delta;
897                     if(verbose > 2)
898                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
899                     if(!size)
900                         return;
901                     ist->is_start=0;
902                 }else{
903                     static uint8_t *input_tmp= NULL;
904                     input_tmp= av_realloc(input_tmp, byte_delta + size);
905
906                     if(byte_delta > allocated_for_size - size){
907                         allocated_for_size= byte_delta + (int64_t)size;
908                         goto need_realloc;
909                     }
910                     ist->is_start=0;
911
912                     memset(input_tmp, 0, byte_delta);
913                     memcpy(input_tmp + byte_delta, buf, size);
914                     buf= input_tmp;
915                     size += byte_delta;
916                     if(verbose > 2)
917                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
918                 }
919             }else if(audio_sync_method>1){
920                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
921                 av_assert0(ost->audio_resample);
922                 if(verbose > 2)
923                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
924 //                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));
925                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
926             }
927         }
928     }else
929         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
930                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
931
932     if (ost->audio_resample) {
933         buftmp = audio_buf;
934         size_out = audio_resample(ost->resample,
935                                   (short *)buftmp, (short *)buf,
936                                   size / (dec->channels * isize));
937         size_out = size_out * enc->channels * osize;
938     } else {
939         buftmp = buf;
940         size_out = size;
941     }
942
943     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
944         const void *ibuf[6]= {buftmp};
945         void *obuf[6]= {audio_buf};
946         int istride[6]= {isize};
947         int ostride[6]= {osize};
948         int len= size_out/istride[0];
949         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
950             printf("av_audio_convert() failed\n");
951             if (exit_on_error)
952                 ffmpeg_exit(1);
953             return;
954         }
955         buftmp = audio_buf;
956         size_out = len*osize;
957     }
958
959     /* now encode as many frames as possible */
960     if (enc->frame_size > 1) {
961         /* output resampled raw samples */
962         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
963             fprintf(stderr, "av_fifo_realloc2() failed\n");
964             ffmpeg_exit(1);
965         }
966         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
967
968         frame_bytes = enc->frame_size * osize * enc->channels;
969
970         while (av_fifo_size(ost->fifo) >= frame_bytes) {
971             AVPacket pkt;
972             av_init_packet(&pkt);
973
974             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
975
976             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
977
978             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
979                                        (short *)audio_buf);
980             if (ret < 0) {
981                 fprintf(stderr, "Audio encoding failed\n");
982                 ffmpeg_exit(1);
983             }
984             audio_size += ret;
985             pkt.stream_index= ost->index;
986             pkt.data= audio_out;
987             pkt.size= ret;
988             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
989                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
990             pkt.flags |= AV_PKT_FLAG_KEY;
991             write_frame(s, &pkt, enc, ost->bitstream_filters);
992
993             ost->sync_opts += enc->frame_size;
994         }
995     } else {
996         AVPacket pkt;
997         av_init_packet(&pkt);
998
999         ost->sync_opts += size_out / (osize * enc->channels);
1000
1001         /* output a pcm frame */
1002         /* determine the size of the coded buffer */
1003         size_out /= osize;
1004         if (coded_bps)
1005             size_out = size_out*coded_bps/8;
1006
1007         if(size_out > audio_out_size){
1008             fprintf(stderr, "Internal error, buffer size too small\n");
1009             ffmpeg_exit(1);
1010         }
1011
1012         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1013         ret = avcodec_encode_audio(enc, audio_out, size_out,
1014                                    (short *)buftmp);
1015         if (ret < 0) {
1016             fprintf(stderr, "Audio encoding failed\n");
1017             ffmpeg_exit(1);
1018         }
1019         audio_size += ret;
1020         pkt.stream_index= ost->index;
1021         pkt.data= audio_out;
1022         pkt.size= ret;
1023         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1024             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1025         pkt.flags |= AV_PKT_FLAG_KEY;
1026         write_frame(s, &pkt, enc, ost->bitstream_filters);
1027     }
1028 }
1029
1030 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1031 {
1032     AVCodecContext *dec;
1033     AVPicture *picture2;
1034     AVPicture picture_tmp;
1035     uint8_t *buf = 0;
1036
1037     dec = ist->st->codec;
1038
1039     /* deinterlace : must be done before any resize */
1040     if (do_deinterlace) {
1041         int size;
1042
1043         /* create temporary picture */
1044         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1045         buf = av_malloc(size);
1046         if (!buf)
1047             return;
1048
1049         picture2 = &picture_tmp;
1050         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1051
1052         if(avpicture_deinterlace(picture2, picture,
1053                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1054             /* if error, do not deinterlace */
1055             fprintf(stderr, "Deinterlacing failed\n");
1056             av_free(buf);
1057             buf = NULL;
1058             picture2 = picture;
1059         }
1060     } else {
1061         picture2 = picture;
1062     }
1063
1064     if (picture != picture2)
1065         *picture = *picture2;
1066     *bufp = buf;
1067 }
1068
1069 /* we begin to correct av delay at this threshold */
1070 #define AV_DELAY_MAX 0.100
1071
1072 static void do_subtitle_out(AVFormatContext *s,
1073                             AVOutputStream *ost,
1074                             AVInputStream *ist,
1075                             AVSubtitle *sub,
1076                             int64_t pts)
1077 {
1078     static uint8_t *subtitle_out = NULL;
1079     int subtitle_out_max_size = 1024 * 1024;
1080     int subtitle_out_size, nb, i;
1081     AVCodecContext *enc;
1082     AVPacket pkt;
1083
1084     if (pts == AV_NOPTS_VALUE) {
1085         fprintf(stderr, "Subtitle packets must have a pts\n");
1086         if (exit_on_error)
1087             ffmpeg_exit(1);
1088         return;
1089     }
1090
1091     enc = ost->st->codec;
1092
1093     if (!subtitle_out) {
1094         subtitle_out = av_malloc(subtitle_out_max_size);
1095     }
1096
1097     /* Note: DVB subtitle need one packet to draw them and one other
1098        packet to clear them */
1099     /* XXX: signal it in the codec context ? */
1100     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1101         nb = 2;
1102     else
1103         nb = 1;
1104
1105     for(i = 0; i < nb; i++) {
1106         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1107         // start_display_time is required to be 0
1108         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1109         sub->end_display_time -= sub->start_display_time;
1110         sub->start_display_time = 0;
1111         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1112                                                     subtitle_out_max_size, sub);
1113         if (subtitle_out_size < 0) {
1114             fprintf(stderr, "Subtitle encoding failed\n");
1115             ffmpeg_exit(1);
1116         }
1117
1118         av_init_packet(&pkt);
1119         pkt.stream_index = ost->index;
1120         pkt.data = subtitle_out;
1121         pkt.size = subtitle_out_size;
1122         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1123         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1124             /* XXX: the pts correction is handled here. Maybe handling
1125                it in the codec would be better */
1126             if (i == 0)
1127                 pkt.pts += 90 * sub->start_display_time;
1128             else
1129                 pkt.pts += 90 * sub->end_display_time;
1130         }
1131         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1132     }
1133 }
1134
1135 static int bit_buffer_size= 1024*256;
1136 static uint8_t *bit_buffer= NULL;
1137
1138 static void do_video_out(AVFormatContext *s,
1139                          AVOutputStream *ost,
1140                          AVInputStream *ist,
1141                          AVFrame *in_picture,
1142                          int *frame_size)
1143 {
1144     int nb_frames, i, ret, resample_changed;
1145     AVFrame *final_picture, *formatted_picture, *resampling_dst;
1146     AVCodecContext *enc, *dec;
1147     double sync_ipts;
1148
1149     enc = ost->st->codec;
1150     dec = ist->st->codec;
1151
1152     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1153
1154     /* by default, we output a single frame */
1155     nb_frames = 1;
1156
1157     *frame_size = 0;
1158
1159     if(video_sync_method){
1160         double vdelta = sync_ipts - ost->sync_opts;
1161         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1162         if (vdelta < -1.1)
1163             nb_frames = 0;
1164         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1165             if(vdelta<=-0.6){
1166                 nb_frames=0;
1167             }else if(vdelta>0.6)
1168                 ost->sync_opts= lrintf(sync_ipts);
1169         }else if (vdelta > 1.1)
1170             nb_frames = lrintf(vdelta);
1171 //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);
1172         if (nb_frames == 0){
1173             ++nb_frames_drop;
1174             if (verbose>2)
1175                 fprintf(stderr, "*** drop!\n");
1176         }else if (nb_frames > 1) {
1177             nb_frames_dup += nb_frames - 1;
1178             if (verbose>2)
1179                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1180         }
1181     }else
1182         ost->sync_opts= lrintf(sync_ipts);
1183
1184     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1185     if (nb_frames <= 0)
1186         return;
1187
1188     formatted_picture = in_picture;
1189     final_picture = formatted_picture;
1190     resampling_dst = &ost->pict_tmp;
1191
1192     resample_changed = ost->resample_width   != dec->width  ||
1193                        ost->resample_height  != dec->height ||
1194                        ost->resample_pix_fmt != dec->pix_fmt;
1195
1196     if (resample_changed) {
1197         av_log(NULL, AV_LOG_INFO,
1198                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1199                ist->file_index, ist->index,
1200                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
1201                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
1202         if(!ost->video_resample)
1203             ffmpeg_exit(1);
1204     }
1205
1206 #if !CONFIG_AVFILTER
1207     if (ost->video_resample) {
1208         final_picture = &ost->pict_tmp;
1209         if (resample_changed) {
1210             /* initialize a new scaler context */
1211             sws_freeContext(ost->img_resample_ctx);
1212             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1213             ost->img_resample_ctx = sws_getContext(
1214                 ist->st->codec->width,
1215                 ist->st->codec->height,
1216                 ist->st->codec->pix_fmt,
1217                 ost->st->codec->width,
1218                 ost->st->codec->height,
1219                 ost->st->codec->pix_fmt,
1220                 sws_flags, NULL, NULL, NULL);
1221             if (ost->img_resample_ctx == NULL) {
1222                 fprintf(stderr, "Cannot get resampling context\n");
1223                 ffmpeg_exit(1);
1224             }
1225         }
1226         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1227               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1228     }
1229 #endif
1230
1231     /* duplicates frame if needed */
1232     for(i=0;i<nb_frames;i++) {
1233         AVPacket pkt;
1234         av_init_packet(&pkt);
1235         pkt.stream_index= ost->index;
1236
1237         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1238             /* raw pictures are written as AVPicture structure to
1239                avoid any copies. We support temorarily the older
1240                method. */
1241             AVFrame* old_frame = enc->coded_frame;
1242             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1243             pkt.data= (uint8_t *)final_picture;
1244             pkt.size=  sizeof(AVPicture);
1245             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1246             pkt.flags |= AV_PKT_FLAG_KEY;
1247
1248             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1249             enc->coded_frame = old_frame;
1250         } else {
1251             AVFrame big_picture;
1252
1253             big_picture= *final_picture;
1254             /* better than nothing: use input picture interlaced
1255                settings */
1256             big_picture.interlaced_frame = in_picture->interlaced_frame;
1257             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1258                 if(top_field_first == -1)
1259                     big_picture.top_field_first = in_picture->top_field_first;
1260                 else
1261                     big_picture.top_field_first = top_field_first;
1262             }
1263
1264             /* handles sameq here. This is not correct because it may
1265                not be a global option */
1266             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1267             if(!me_threshold)
1268                 big_picture.pict_type = 0;
1269 //            big_picture.pts = AV_NOPTS_VALUE;
1270             big_picture.pts= ost->sync_opts;
1271 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1272 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1273             if (ost->forced_kf_index < ost->forced_kf_count &&
1274                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1275                 big_picture.pict_type = FF_I_TYPE;
1276                 ost->forced_kf_index++;
1277             }
1278             ret = avcodec_encode_video(enc,
1279                                        bit_buffer, bit_buffer_size,
1280                                        &big_picture);
1281             if (ret < 0) {
1282                 fprintf(stderr, "Video encoding failed\n");
1283                 ffmpeg_exit(1);
1284             }
1285
1286             if(ret>0){
1287                 pkt.data= bit_buffer;
1288                 pkt.size= ret;
1289                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1290                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1291 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1292    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1293    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1294
1295                 if(enc->coded_frame->key_frame)
1296                     pkt.flags |= AV_PKT_FLAG_KEY;
1297                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1298                 *frame_size = ret;
1299                 video_size += ret;
1300                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1301                 //        enc->frame_number-1, ret, enc->pict_type);
1302                 /* if two pass, output log */
1303                 if (ost->logfile && enc->stats_out) {
1304                     fprintf(ost->logfile, "%s", enc->stats_out);
1305                 }
1306             }
1307         }
1308         ost->sync_opts++;
1309         ost->frame_number++;
1310     }
1311 }
1312
1313 static double psnr(double d){
1314     return -10.0*log(d)/log(10.0);
1315 }
1316
1317 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1318                            int frame_size)
1319 {
1320     AVCodecContext *enc;
1321     int frame_number;
1322     double ti1, bitrate, avg_bitrate;
1323
1324     /* this is executed just the first time do_video_stats is called */
1325     if (!vstats_file) {
1326         vstats_file = fopen(vstats_filename, "w");
1327         if (!vstats_file) {
1328             perror("fopen");
1329             ffmpeg_exit(1);
1330         }
1331     }
1332
1333     enc = ost->st->codec;
1334     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1335         frame_number = ost->frame_number;
1336         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1337         if (enc->flags&CODEC_FLAG_PSNR)
1338             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1339
1340         fprintf(vstats_file,"f_size= %6d ", frame_size);
1341         /* compute pts value */
1342         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1343         if (ti1 < 0.01)
1344             ti1 = 0.01;
1345
1346         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1347         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1348         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1349             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1350         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1351     }
1352 }
1353
1354 static void print_report(AVFormatContext **output_files,
1355                          AVOutputStream **ost_table, int nb_ostreams,
1356                          int is_last_report)
1357 {
1358     char buf[1024];
1359     AVOutputStream *ost;
1360     AVFormatContext *oc;
1361     int64_t total_size;
1362     AVCodecContext *enc;
1363     int frame_number, vid, i;
1364     double bitrate, ti1, pts;
1365     static int64_t last_time = -1;
1366     static int qp_histogram[52];
1367
1368     if (!is_last_report) {
1369         int64_t cur_time;
1370         /* display the report every 0.5 seconds */
1371         cur_time = av_gettime();
1372         if (last_time == -1) {
1373             last_time = cur_time;
1374             return;
1375         }
1376         if ((cur_time - last_time) < 500000)
1377             return;
1378         last_time = cur_time;
1379     }
1380
1381
1382     oc = output_files[0];
1383
1384     total_size = avio_size(oc->pb);
1385     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1386         total_size= avio_tell(oc->pb);
1387
1388     buf[0] = '\0';
1389     ti1 = 1e10;
1390     vid = 0;
1391     for(i=0;i<nb_ostreams;i++) {
1392         float q= -1;
1393         ost = ost_table[i];
1394         enc = ost->st->codec;
1395         if(!ost->st->stream_copy && enc->coded_frame)
1396             q= enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1397         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1398             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1399         }
1400         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1401             float t = (av_gettime()-timer_start) / 1000000.0;
1402
1403             frame_number = ost->frame_number;
1404             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1405                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1406             if(is_last_report)
1407                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1408             if(qp_hist){
1409                 int j;
1410                 int qp= lrintf(q);
1411                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1412                     qp_histogram[qp]++;
1413                 for(j=0; j<32; j++)
1414                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1415             }
1416             if (enc->flags&CODEC_FLAG_PSNR){
1417                 int j;
1418                 double error, error_sum=0;
1419                 double scale, scale_sum=0;
1420                 char type[3]= {'Y','U','V'};
1421                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1422                 for(j=0; j<3; j++){
1423                     if(is_last_report){
1424                         error= enc->error[j];
1425                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1426                     }else{
1427                         error= enc->coded_frame->error[j];
1428                         scale= enc->width*enc->height*255.0*255.0;
1429                     }
1430                     if(j) scale/=4;
1431                     error_sum += error;
1432                     scale_sum += scale;
1433                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1434                 }
1435                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1436             }
1437             vid = 1;
1438         }
1439         /* compute min output value */
1440         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1441         if ((pts < ti1) && (pts > 0))
1442             ti1 = pts;
1443     }
1444     if (ti1 < 0.01)
1445         ti1 = 0.01;
1446
1447     if (verbose > 0 || is_last_report) {
1448         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1449
1450         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1451             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1452             (double)total_size / 1024, ti1, bitrate);
1453
1454         if (nb_frames_dup || nb_frames_drop)
1455           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1456                   nb_frames_dup, nb_frames_drop);
1457
1458         if (verbose >= 0)
1459             fprintf(stderr, "%s    \r", buf);
1460
1461         fflush(stderr);
1462     }
1463
1464     if (is_last_report && verbose >= 0){
1465         int64_t raw= audio_size + video_size + extra_size;
1466         fprintf(stderr, "\n");
1467         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1468                 video_size/1024.0,
1469                 audio_size/1024.0,
1470                 extra_size/1024.0,
1471                 100.0*(total_size - raw)/raw
1472         );
1473     }
1474 }
1475
1476 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1477 {
1478     int fill_char = 0x00;
1479     if (sample_fmt == AV_SAMPLE_FMT_U8)
1480         fill_char = 0x80;
1481     memset(buf, fill_char, size);
1482 }
1483
1484 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1485 static int output_packet(AVInputStream *ist, int ist_index,
1486                          AVOutputStream **ost_table, int nb_ostreams,
1487                          const AVPacket *pkt)
1488 {
1489     AVFormatContext *os;
1490     AVOutputStream *ost;
1491     int ret, i;
1492     int got_picture;
1493     AVFrame picture;
1494     void *buffer_to_free;
1495     static unsigned int samples_size= 0;
1496     AVSubtitle subtitle, *subtitle_to_free;
1497     int64_t pkt_pts = AV_NOPTS_VALUE;
1498 #if CONFIG_AVFILTER
1499     int frame_available;
1500 #endif
1501
1502     AVPacket avpkt;
1503     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1504
1505     if(ist->next_pts == AV_NOPTS_VALUE)
1506         ist->next_pts= ist->pts;
1507
1508     if (pkt == NULL) {
1509         /* EOF handling */
1510         av_init_packet(&avpkt);
1511         avpkt.data = NULL;
1512         avpkt.size = 0;
1513         goto handle_eof;
1514     } else {
1515         avpkt = *pkt;
1516     }
1517
1518     if(pkt->dts != AV_NOPTS_VALUE)
1519         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1520     if(pkt->pts != AV_NOPTS_VALUE)
1521         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1522
1523     //while we have more to decode or while the decoder did output something on EOF
1524     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1525         uint8_t *data_buf, *decoded_data_buf;
1526         int data_size, decoded_data_size;
1527     handle_eof:
1528         ist->pts= ist->next_pts;
1529
1530         if(avpkt.size && avpkt.size != pkt->size &&
1531            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1532             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1533             ist->showed_multi_packet_warning=1;
1534         }
1535
1536         /* decode the packet if needed */
1537         decoded_data_buf = NULL; /* fail safe */
1538         decoded_data_size= 0;
1539         data_buf  = avpkt.data;
1540         data_size = avpkt.size;
1541         subtitle_to_free = NULL;
1542         if (ist->decoding_needed) {
1543             switch(ist->st->codec->codec_type) {
1544             case AVMEDIA_TYPE_AUDIO:{
1545                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1546                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1547                     av_free(samples);
1548                     samples= av_malloc(samples_size);
1549                 }
1550                 decoded_data_size= samples_size;
1551                     /* XXX: could avoid copy if PCM 16 bits with same
1552                        endianness as CPU */
1553                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1554                                             &avpkt);
1555                 if (ret < 0)
1556                     goto fail_decode;
1557                 avpkt.data += ret;
1558                 avpkt.size -= ret;
1559                 data_size   = ret;
1560                 /* Some bug in mpeg audio decoder gives */
1561                 /* decoded_data_size < 0, it seems they are overflows */
1562                 if (decoded_data_size <= 0) {
1563                     /* no audio frame */
1564                     continue;
1565                 }
1566                 decoded_data_buf = (uint8_t *)samples;
1567                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1568                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1569                 break;}
1570             case AVMEDIA_TYPE_VIDEO:
1571                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1572                     /* XXX: allocate picture correctly */
1573                     avcodec_get_frame_defaults(&picture);
1574                     avpkt.pts = pkt_pts;
1575                     avpkt.dts = ist->pts;
1576                     pkt_pts = AV_NOPTS_VALUE;
1577
1578                     ret = avcodec_decode_video2(ist->st->codec,
1579                                                 &picture, &got_picture, &avpkt);
1580                     ist->st->quality= picture.quality;
1581                     if (ret < 0)
1582                         goto fail_decode;
1583                     if (!got_picture) {
1584                         /* no picture yet */
1585                         goto discard_packet;
1586                     }
1587                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1588                     if (ist->st->codec->time_base.num != 0) {
1589                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1590                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1591                                           ist->st->codec->time_base.num * ticks) /
1592                             ist->st->codec->time_base.den;
1593                     }
1594                     avpkt.size = 0;
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         buffer_to_free = NULL;
1630         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1631             pre_process_video_frame(ist, (AVPicture *)&picture,
1632                                     &buffer_to_free);
1633         }
1634
1635 #if CONFIG_AVFILTER
1636         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
1637             for(i=0;i<nb_ostreams;i++) {
1638                 ost = ost_table[i];
1639                 if (ost->input_video_filter && ost->source_index == ist_index) {
1640                     AVRational sar;
1641                     if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1642                     else                                  sar = ist->st->codec->sample_aspect_ratio;
1643                     // add it to be filtered
1644                     av_vsrc_buffer_add_frame2(ost->input_video_filter, &picture,
1645                                              ist->pts,
1646                                              sar, ist->st->codec->width, ist->st->codec->height,
1647                                              ist->st->codec->pix_fmt, "0:0"); //TODO user setable params
1648                 }
1649             }
1650         }
1651 #endif
1652
1653         // preprocess audio (volume)
1654         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1655             if (audio_volume != 256) {
1656                 short *volp;
1657                 volp = samples;
1658                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1659                     int v = ((*volp) * audio_volume + 128) >> 8;
1660                     if (v < -32768) v = -32768;
1661                     if (v >  32767) v = 32767;
1662                     *volp++ = v;
1663                 }
1664             }
1665         }
1666
1667         /* frame rate emulation */
1668         if (rate_emu) {
1669             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1670             int64_t now = av_gettime() - ist->start;
1671             if (pts > now)
1672                 usleep(pts - now);
1673         }
1674         /* if output time reached then transcode raw format,
1675            encode packets and output them */
1676         if (start_time == 0 || ist->pts >= start_time)
1677             for(i=0;i<nb_ostreams;i++) {
1678                 int frame_size;
1679
1680                 ost = ost_table[i];
1681                 if (ost->source_index == ist_index) {
1682 #if CONFIG_AVFILTER
1683                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1684                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1685                 while (frame_available) {
1686                     AVRational ist_pts_tb;
1687                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1688                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1689                     if (ost->picref)
1690                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1691 #endif
1692                     os = output_files[ost->file_index];
1693
1694                     /* set the input output pts pairs */
1695                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1696
1697                     if (ost->encoding_needed) {
1698                         av_assert0(ist->decoding_needed);
1699                         switch(ost->st->codec->codec_type) {
1700                         case AVMEDIA_TYPE_AUDIO:
1701                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1702                             break;
1703                         case AVMEDIA_TYPE_VIDEO:
1704 #if CONFIG_AVFILTER
1705                             if (ost->picref->video && !ost->frame_aspect_ratio)
1706                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1707 #endif
1708                             do_video_out(os, ost, ist, &picture, &frame_size);
1709                             if (vstats_filename && frame_size)
1710                                 do_video_stats(os, ost, frame_size);
1711                             break;
1712                         case AVMEDIA_TYPE_SUBTITLE:
1713                             do_subtitle_out(os, ost, ist, &subtitle,
1714                                             pkt->pts);
1715                             break;
1716                         default:
1717                             abort();
1718                         }
1719                     } else {
1720                         AVFrame avframe; //FIXME/XXX remove this
1721                         AVPacket opkt;
1722                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1723
1724                         av_init_packet(&opkt);
1725
1726                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1727 #if !CONFIG_AVFILTER
1728                             continue;
1729 #else
1730                             goto cont;
1731 #endif
1732
1733                         /* no reencoding needed : output the packet directly */
1734                         /* force the input stream PTS */
1735
1736                         avcodec_get_frame_defaults(&avframe);
1737                         ost->st->codec->coded_frame= &avframe;
1738                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1739
1740                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1741                             audio_size += data_size;
1742                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1743                             video_size += data_size;
1744                             ost->sync_opts++;
1745                         }
1746
1747                         opkt.stream_index= ost->index;
1748                         if(pkt->pts != AV_NOPTS_VALUE)
1749                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1750                         else
1751                             opkt.pts= AV_NOPTS_VALUE;
1752
1753                         if (pkt->dts == AV_NOPTS_VALUE)
1754                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1755                         else
1756                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1757                         opkt.dts -= ost_tb_start_time;
1758
1759                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1760                         opkt.flags= pkt->flags;
1761
1762                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1763                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1764                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1765                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1766                            ) {
1767                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1768                                 opkt.destruct= av_destruct_packet;
1769                         } else {
1770                             opkt.data = data_buf;
1771                             opkt.size = data_size;
1772                         }
1773
1774                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1775                         ost->st->codec->frame_number++;
1776                         ost->frame_number++;
1777                         av_free_packet(&opkt);
1778                     }
1779 #if CONFIG_AVFILTER
1780                     cont:
1781                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1782                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1783                     if(ost->picref)
1784                         avfilter_unref_buffer(ost->picref);
1785                 }
1786 #endif
1787                 }
1788             }
1789
1790         av_free(buffer_to_free);
1791         /* XXX: allocate the subtitles in the codec ? */
1792         if (subtitle_to_free) {
1793             avsubtitle_free(subtitle_to_free);
1794             subtitle_to_free = NULL;
1795         }
1796     }
1797  discard_packet:
1798     if (pkt == NULL) {
1799         /* EOF handling */
1800
1801         for(i=0;i<nb_ostreams;i++) {
1802             ost = ost_table[i];
1803             if (ost->source_index == ist_index) {
1804                 AVCodecContext *enc= ost->st->codec;
1805                 os = output_files[ost->file_index];
1806
1807                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1808                     continue;
1809                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1810                     continue;
1811
1812                 if (ost->encoding_needed) {
1813                     for(;;) {
1814                         AVPacket pkt;
1815                         int fifo_bytes;
1816                         av_init_packet(&pkt);
1817                         pkt.stream_index= ost->index;
1818
1819                         switch(ost->st->codec->codec_type) {
1820                         case AVMEDIA_TYPE_AUDIO:
1821                             fifo_bytes = av_fifo_size(ost->fifo);
1822                             ret = 0;
1823                             /* encode any samples remaining in fifo */
1824                             if (fifo_bytes > 0) {
1825                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1826                                 int fs_tmp = enc->frame_size;
1827
1828                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1829                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1830                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1831                                 } else { /* pad */
1832                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1833                                     if (allocated_audio_buf_size < frame_bytes)
1834                                         ffmpeg_exit(1);
1835                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1836                                 }
1837
1838                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1839                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1840                                                           ost->st->time_base.num, enc->sample_rate);
1841                                 enc->frame_size = fs_tmp;
1842                             }
1843                             if(ret <= 0) {
1844                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1845                             }
1846                             if (ret < 0) {
1847                                 fprintf(stderr, "Audio encoding failed\n");
1848                                 ffmpeg_exit(1);
1849                             }
1850                             audio_size += ret;
1851                             pkt.flags |= AV_PKT_FLAG_KEY;
1852                             break;
1853                         case AVMEDIA_TYPE_VIDEO:
1854                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1855                             if (ret < 0) {
1856                                 fprintf(stderr, "Video encoding failed\n");
1857                                 ffmpeg_exit(1);
1858                             }
1859                             video_size += ret;
1860                             if(enc->coded_frame && enc->coded_frame->key_frame)
1861                                 pkt.flags |= AV_PKT_FLAG_KEY;
1862                             if (ost->logfile && enc->stats_out) {
1863                                 fprintf(ost->logfile, "%s", enc->stats_out);
1864                             }
1865                             break;
1866                         default:
1867                             ret=-1;
1868                         }
1869
1870                         if(ret<=0)
1871                             break;
1872                         pkt.data= bit_buffer;
1873                         pkt.size= ret;
1874                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1875                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1876                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1877                     }
1878                 }
1879             }
1880         }
1881     }
1882
1883     return 0;
1884  fail_decode:
1885     return -1;
1886 }
1887
1888 static void print_sdp(AVFormatContext **avc, int n)
1889 {
1890     char sdp[2048];
1891
1892     av_sdp_create(avc, n, sdp, sizeof(sdp));
1893     printf("SDP:\n%s\n", sdp);
1894     fflush(stdout);
1895 }
1896
1897 static int copy_chapters(int infile, int outfile)
1898 {
1899     AVFormatContext *is = input_files[infile];
1900     AVFormatContext *os = output_files[outfile];
1901     int i;
1902
1903     for (i = 0; i < is->nb_chapters; i++) {
1904         AVChapter *in_ch = is->chapters[i], *out_ch;
1905         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1906                                       AV_TIME_BASE_Q, in_ch->time_base);
1907         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1908                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1909
1910
1911         if (in_ch->end < ts_off)
1912             continue;
1913         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1914             break;
1915
1916         out_ch = av_mallocz(sizeof(AVChapter));
1917         if (!out_ch)
1918             return AVERROR(ENOMEM);
1919
1920         out_ch->id        = in_ch->id;
1921         out_ch->time_base = in_ch->time_base;
1922         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1923         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1924
1925         if (metadata_chapters_autocopy)
1926             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1927
1928         os->nb_chapters++;
1929         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1930         if (!os->chapters)
1931             return AVERROR(ENOMEM);
1932         os->chapters[os->nb_chapters - 1] = out_ch;
1933     }
1934     return 0;
1935 }
1936
1937 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1938                                     AVCodecContext *avctx)
1939 {
1940     char *p;
1941     int n = 1, i;
1942     int64_t t;
1943
1944     for (p = kf; *p; p++)
1945         if (*p == ',')
1946             n++;
1947     ost->forced_kf_count = n;
1948     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1949     if (!ost->forced_kf_pts) {
1950         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1951         ffmpeg_exit(1);
1952     }
1953     for (i = 0; i < n; i++) {
1954         p = i ? strchr(p, ',') + 1 : kf;
1955         t = parse_time_or_die("force_key_frames", p, 1);
1956         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1957     }
1958 }
1959
1960 /*
1961  * The following code is the main loop of the file converter
1962  */
1963 static int transcode(AVFormatContext **output_files,
1964                      int nb_output_files,
1965                      AVFormatContext **input_files,
1966                      int nb_input_files,
1967                      AVStreamMap *stream_maps, int nb_stream_maps)
1968 {
1969     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, step;
1970     AVFormatContext *is, *os;
1971     AVCodecContext *codec, *icodec;
1972     AVOutputStream *ost, **ost_table = NULL;
1973     AVInputStream *ist, **ist_table = NULL;
1974     AVInputFile *file_table;
1975     char error[1024];
1976     int key;
1977     int want_sdp = 1;
1978     uint8_t no_packet[MAX_FILES]={0};
1979     int no_packet_count=0;
1980     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
1981     int nb_streams[AVMEDIA_TYPE_NB]={0};
1982
1983     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1984     if (!file_table)
1985         goto fail;
1986
1987     /* input stream init */
1988     j = 0;
1989     for(i=0;i<nb_input_files;i++) {
1990         is = input_files[i];
1991         file_table[i].ist_index = j;
1992         file_table[i].nb_streams = is->nb_streams;
1993         j += is->nb_streams;
1994     }
1995     nb_istreams = j;
1996
1997     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1998     if (!ist_table)
1999         goto fail;
2000
2001     for(i=0;i<nb_istreams;i++) {
2002         ist = av_mallocz(sizeof(AVInputStream));
2003         if (!ist)
2004             goto fail;
2005         ist_table[i] = ist;
2006     }
2007     j = 0;
2008     for(i=0;i<nb_input_files;i++) {
2009         is = input_files[i];
2010         for(k=0;k<is->nb_streams;k++) {
2011             ist = ist_table[j++];
2012             ist->st = is->streams[k];
2013             ist->file_index = i;
2014             ist->index = k;
2015             ist->discard = 1; /* the stream is discarded by default
2016                                  (changed later) */
2017
2018             if (rate_emu) {
2019                 ist->start = av_gettime();
2020             }
2021         }
2022     }
2023
2024     /* output stream init */
2025     nb_ostreams = 0;
2026     for(i=0;i<nb_output_files;i++) {
2027         os = output_files[i];
2028         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2029             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2030             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2031             ret = AVERROR(EINVAL);
2032             goto fail;
2033         }
2034         nb_ostreams += os->nb_streams;
2035     }
2036     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2037         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2038         ret = AVERROR(EINVAL);
2039         goto fail;
2040     }
2041
2042     /* Sanity check the mapping args -- do the input files & streams exist? */
2043     for(i=0;i<nb_stream_maps;i++) {
2044         int fi = stream_maps[i].file_index;
2045         int si = stream_maps[i].stream_index;
2046
2047         if (fi < 0 || fi > nb_input_files - 1 ||
2048             si < 0 || si > file_table[fi].nb_streams - 1) {
2049             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2050             ret = AVERROR(EINVAL);
2051             goto fail;
2052         }
2053         fi = stream_maps[i].sync_file_index;
2054         si = stream_maps[i].sync_stream_index;
2055         if (fi < 0 || fi > nb_input_files - 1 ||
2056             si < 0 || si > file_table[fi].nb_streams - 1) {
2057             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2058             ret = AVERROR(EINVAL);
2059             goto fail;
2060         }
2061     }
2062
2063     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2064     if (!ost_table)
2065         goto fail;
2066
2067     for(k=0;k<nb_output_files;k++) {
2068         os = output_files[k];
2069         for(i=0;i<os->nb_streams;i++,n++) {
2070             nb_streams[os->streams[i]->codec->codec_type]++;
2071         }
2072     }
2073     for(step=1<<30; step; step>>=1){
2074         int found_streams[AVMEDIA_TYPE_NB]={0};
2075         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2076             nb_frame_threshold[j] += step;
2077
2078         for(j=0; j<nb_istreams; j++) {
2079             int skip=0;
2080             ist = ist_table[j];
2081             if(opt_programid){
2082                 int pi,si;
2083                 AVFormatContext *f= input_files[ ist->file_index ];
2084                 skip=1;
2085                 for(pi=0; pi<f->nb_programs; pi++){
2086                     AVProgram *p= f->programs[pi];
2087                     if(p->id == opt_programid)
2088                         for(si=0; si<p->nb_stream_indexes; si++){
2089                             if(f->streams[ p->stream_index[si] ] == ist->st)
2090                                 skip=0;
2091                         }
2092                 }
2093             }
2094             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2095                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2096                 found_streams[ist->st->codec->codec_type]++;
2097             }
2098         }
2099         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2100             if(found_streams[j] < nb_streams[j])
2101                 nb_frame_threshold[j] -= step;
2102     }
2103     n = 0;
2104     for(k=0;k<nb_output_files;k++) {
2105         os = output_files[k];
2106         for(i=0;i<os->nb_streams;i++,n++) {
2107             int found;
2108             ost = ost_table[n] = output_streams_for_file[k][i];
2109             ost->st = os->streams[i];
2110             if (nb_stream_maps > 0) {
2111                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2112                     stream_maps[n].stream_index;
2113
2114                 /* Sanity check that the stream types match */
2115                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2116                     int i= ost->file_index;
2117                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2118                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2119                         stream_maps[n].file_index, stream_maps[n].stream_index,
2120                         ost->file_index, ost->index);
2121                     ffmpeg_exit(1);
2122                 }
2123
2124             } else {
2125                 /* get corresponding input stream index : we select the first one with the right type */
2126                 found = 0;
2127                 for(j=0;j<nb_istreams;j++) {
2128                     int skip=0;
2129                     ist = ist_table[j];
2130                     if(opt_programid){
2131                         int pi,si;
2132                         AVFormatContext *f= input_files[ ist->file_index ];
2133                         skip=1;
2134                         for(pi=0; pi<f->nb_programs; pi++){
2135                             AVProgram *p= f->programs[pi];
2136                             if(p->id == opt_programid)
2137                                 for(si=0; si<p->nb_stream_indexes; si++){
2138                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2139                                         skip=0;
2140                                 }
2141                         }
2142                     }
2143                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2144                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2145                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2146                             ost->source_index = j;
2147                             found = 1;
2148                             break;
2149                     }
2150                 }
2151
2152                 if (!found) {
2153                     if(! opt_programid) {
2154                         /* try again and reuse existing stream */
2155                         for(j=0;j<nb_istreams;j++) {
2156                             ist = ist_table[j];
2157                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2158                                 && ist->st->discard != AVDISCARD_ALL) {
2159                                 ost->source_index = j;
2160                                 found = 1;
2161                             }
2162                         }
2163                     }
2164                     if (!found) {
2165                         int i= ost->file_index;
2166                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2167                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2168                                 ost->file_index, ost->index);
2169                         ffmpeg_exit(1);
2170                     }
2171                 }
2172             }
2173             ist = ist_table[ost->source_index];
2174             ist->discard = 0;
2175             ost->sync_ist = (nb_stream_maps > 0) ?
2176                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2177                          stream_maps[n].sync_stream_index] : ist;
2178         }
2179     }
2180
2181     /* for each output stream, we compute the right encoding parameters */
2182     for(i=0;i<nb_ostreams;i++) {
2183         ost = ost_table[i];
2184         os = output_files[ost->file_index];
2185         ist = ist_table[ost->source_index];
2186
2187         codec = ost->st->codec;
2188         icodec = ist->st->codec;
2189
2190         if (metadata_streams_autocopy)
2191             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2192                              AV_METADATA_DONT_OVERWRITE);
2193
2194         ost->st->disposition = ist->st->disposition;
2195         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2196         codec->chroma_sample_location = icodec->chroma_sample_location;
2197
2198         if (ost->st->stream_copy) {
2199             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2200
2201             if (extra_size > INT_MAX)
2202                 goto fail;
2203
2204             /* if stream_copy is selected, no need to decode or encode */
2205             codec->codec_id = icodec->codec_id;
2206             codec->codec_type = icodec->codec_type;
2207
2208             if(!codec->codec_tag){
2209                 if(   !os->oformat->codec_tag
2210                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2211                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2212                     codec->codec_tag = icodec->codec_tag;
2213             }
2214
2215             codec->bit_rate = icodec->bit_rate;
2216             codec->rc_max_rate    = icodec->rc_max_rate;
2217             codec->rc_buffer_size = icodec->rc_buffer_size;
2218             codec->extradata= av_mallocz(extra_size);
2219             if (!codec->extradata)
2220                 goto fail;
2221             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2222             codec->extradata_size= icodec->extradata_size;
2223             if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2224                 codec->time_base = icodec->time_base;
2225                 codec->time_base.num *= icodec->ticks_per_frame;
2226                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2227                           codec->time_base.num, codec->time_base.den, INT_MAX);
2228             }else
2229                 codec->time_base = ist->st->time_base;
2230             switch(codec->codec_type) {
2231             case AVMEDIA_TYPE_AUDIO:
2232                 if(audio_volume != 256) {
2233                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2234                     ffmpeg_exit(1);
2235                 }
2236                 codec->channel_layout = icodec->channel_layout;
2237                 codec->sample_rate = icodec->sample_rate;
2238                 codec->channels = icodec->channels;
2239                 codec->frame_size = icodec->frame_size;
2240                 codec->audio_service_type = icodec->audio_service_type;
2241                 codec->block_align= icodec->block_align;
2242                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2243                     codec->block_align= 0;
2244                 if(codec->codec_id == CODEC_ID_AC3)
2245                     codec->block_align= 0;
2246                 break;
2247             case AVMEDIA_TYPE_VIDEO:
2248                 codec->pix_fmt = icodec->pix_fmt;
2249                 codec->width = icodec->width;
2250                 codec->height = icodec->height;
2251                 codec->has_b_frames = icodec->has_b_frames;
2252                 if (!codec->sample_aspect_ratio.num) {
2253                     codec->sample_aspect_ratio =
2254                     ost->st->sample_aspect_ratio =
2255                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2256                         ist->st->codec->sample_aspect_ratio.num ?
2257                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2258                 }
2259                 break;
2260             case AVMEDIA_TYPE_SUBTITLE:
2261                 codec->width = icodec->width;
2262                 codec->height = icodec->height;
2263                 break;
2264             default:
2265                 abort();
2266             }
2267         } else {
2268             switch(codec->codec_type) {
2269             case AVMEDIA_TYPE_AUDIO:
2270                 ost->fifo= av_fifo_alloc(1024);
2271                 if(!ost->fifo)
2272                     goto fail;
2273                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2274                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2275                 icodec->request_channels = codec->channels;
2276                 ist->decoding_needed = 1;
2277                 ost->encoding_needed = 1;
2278                 ost->resample_sample_fmt  = icodec->sample_fmt;
2279                 ost->resample_sample_rate = icodec->sample_rate;
2280                 ost->resample_channels    = icodec->channels;
2281                 break;
2282             case AVMEDIA_TYPE_VIDEO:
2283                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2284                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2285                     ffmpeg_exit(1);
2286                 }
2287                 ost->video_resample = codec->width   != icodec->width  ||
2288                                       codec->height  != icodec->height ||
2289                                       codec->pix_fmt != icodec->pix_fmt;
2290                 if (ost->video_resample) {
2291 #if !CONFIG_AVFILTER
2292                     avcodec_get_frame_defaults(&ost->pict_tmp);
2293                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2294                                          codec->width, codec->height)) {
2295                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2296                         ffmpeg_exit(1);
2297                     }
2298                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2299                     ost->img_resample_ctx = sws_getContext(
2300                         icodec->width,
2301                         icodec->height,
2302                             icodec->pix_fmt,
2303                             codec->width,
2304                             codec->height,
2305                             codec->pix_fmt,
2306                             sws_flags, NULL, NULL, NULL);
2307                     if (ost->img_resample_ctx == NULL) {
2308                         fprintf(stderr, "Cannot get resampling context\n");
2309                         ffmpeg_exit(1);
2310                     }
2311 #endif
2312                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2313                 }
2314                 ost->resample_height = icodec->height;
2315                 ost->resample_width  = icodec->width;
2316                 ost->resample_pix_fmt= icodec->pix_fmt;
2317                 ost->encoding_needed = 1;
2318                 ist->decoding_needed = 1;
2319
2320 #if CONFIG_AVFILTER
2321                 if (configure_video_filters(ist, ost)) {
2322                     fprintf(stderr, "Error opening filters!\n");
2323                     exit(1);
2324                 }
2325 #endif
2326                 break;
2327             case AVMEDIA_TYPE_SUBTITLE:
2328                 ost->encoding_needed = 1;
2329                 ist->decoding_needed = 1;
2330                 break;
2331             default:
2332                 abort();
2333                 break;
2334             }
2335             /* two pass mode */
2336             if (ost->encoding_needed &&
2337                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2338                 char logfilename[1024];
2339                 FILE *f;
2340
2341                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2342                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2343                          i);
2344                 if (codec->flags & CODEC_FLAG_PASS1) {
2345                     f = fopen(logfilename, "wb");
2346                     if (!f) {
2347                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2348                         ffmpeg_exit(1);
2349                     }
2350                     ost->logfile = f;
2351                 } else {
2352                     char  *logbuffer;
2353                     size_t logbuffer_size;
2354                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2355                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2356                         ffmpeg_exit(1);
2357                     }
2358                     codec->stats_in = logbuffer;
2359                 }
2360             }
2361         }
2362         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2363             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2364             int size= codec->width * codec->height;
2365             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2366         }
2367     }
2368
2369     if (!bit_buffer)
2370         bit_buffer = av_malloc(bit_buffer_size);
2371     if (!bit_buffer) {
2372         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2373                 bit_buffer_size);
2374         ret = AVERROR(ENOMEM);
2375         goto fail;
2376     }
2377
2378     /* open each encoder */
2379     for(i=0;i<nb_ostreams;i++) {
2380         ost = ost_table[i];
2381         if (ost->encoding_needed) {
2382             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2383             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2384             if (!codec)
2385                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2386             if (!codec) {
2387                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2388                          ost->st->codec->codec_id, ost->file_index, ost->index);
2389                 ret = AVERROR(EINVAL);
2390                 goto dump_format;
2391             }
2392             if (dec->subtitle_header) {
2393                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2394                 if (!ost->st->codec->subtitle_header) {
2395                     ret = AVERROR(ENOMEM);
2396                     goto dump_format;
2397                 }
2398                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2399                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2400             }
2401             if (avcodec_open(ost->st->codec, codec) < 0) {
2402                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2403                         ost->file_index, ost->index);
2404                 ret = AVERROR(EINVAL);
2405                 goto dump_format;
2406             }
2407             extra_size += ost->st->codec->extradata_size;
2408         }
2409     }
2410
2411     /* open each decoder */
2412     for(i=0;i<nb_istreams;i++) {
2413         ist = ist_table[i];
2414         if (ist->decoding_needed) {
2415             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2416             if (!codec)
2417                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2418             if (!codec) {
2419                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2420                         ist->st->codec->codec_id, ist->file_index, ist->index);
2421                 ret = AVERROR(EINVAL);
2422                 goto dump_format;
2423             }
2424             if (avcodec_open(ist->st->codec, codec) < 0) {
2425                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2426                         ist->file_index, ist->index);
2427                 ret = AVERROR(EINVAL);
2428                 goto dump_format;
2429             }
2430             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2431             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2432         }
2433     }
2434
2435     /* init pts */
2436     for(i=0;i<nb_istreams;i++) {
2437         AVStream *st;
2438         ist = ist_table[i];
2439         st= ist->st;
2440         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2441         ist->next_pts = AV_NOPTS_VALUE;
2442         ist->is_start = 1;
2443     }
2444
2445     /* set meta data information from input file if required */
2446     for (i=0;i<nb_meta_data_maps;i++) {
2447         AVFormatContext *files[2];
2448         AVMetadata      **meta[2];
2449         int j;
2450
2451 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2452         if ((index) < 0 || (index) >= (nb_elems)) {\
2453             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2454                      (desc), (index));\
2455             ret = AVERROR(EINVAL);\
2456             goto dump_format;\
2457         }
2458
2459         int out_file_index = meta_data_maps[i][0].file;
2460         int in_file_index = meta_data_maps[i][1].file;
2461         if (in_file_index < 0 || out_file_index < 0)
2462             continue;
2463         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2464         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2465
2466         files[0] = output_files[out_file_index];
2467         files[1] = input_files[in_file_index];
2468
2469         for (j = 0; j < 2; j++) {
2470             AVMetaDataMap *map = &meta_data_maps[i][j];
2471
2472             switch (map->type) {
2473             case 'g':
2474                 meta[j] = &files[j]->metadata;
2475                 break;
2476             case 's':
2477                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2478                 meta[j] = &files[j]->streams[map->index]->metadata;
2479                 break;
2480             case 'c':
2481                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2482                 meta[j] = &files[j]->chapters[map->index]->metadata;
2483                 break;
2484             case 'p':
2485                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2486                 meta[j] = &files[j]->programs[map->index]->metadata;
2487                 break;
2488             }
2489         }
2490
2491         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2492     }
2493
2494     /* copy global metadata by default */
2495     if (metadata_global_autocopy) {
2496
2497         for (i = 0; i < nb_output_files; i++)
2498             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2499                              AV_METADATA_DONT_OVERWRITE);
2500     }
2501
2502     /* copy chapters according to chapter maps */
2503     for (i = 0; i < nb_chapter_maps; i++) {
2504         int infile  = chapter_maps[i].in_file;
2505         int outfile = chapter_maps[i].out_file;
2506
2507         if (infile < 0 || outfile < 0)
2508             continue;
2509         if (infile >= nb_input_files) {
2510             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2511             ret = AVERROR(EINVAL);
2512             goto dump_format;
2513         }
2514         if (outfile >= nb_output_files) {
2515             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2516             ret = AVERROR(EINVAL);
2517             goto dump_format;
2518         }
2519         copy_chapters(infile, outfile);
2520     }
2521
2522     /* copy chapters from the first input file that has them*/
2523     if (!nb_chapter_maps)
2524         for (i = 0; i < nb_input_files; i++) {
2525             if (!input_files[i]->nb_chapters)
2526                 continue;
2527
2528             for (j = 0; j < nb_output_files; j++)
2529                 if ((ret = copy_chapters(i, j)) < 0)
2530                     goto dump_format;
2531             break;
2532         }
2533
2534     /* open files and write file headers */
2535     for(i=0;i<nb_output_files;i++) {
2536         os = output_files[i];
2537         if (av_write_header(os) < 0) {
2538             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2539             ret = AVERROR(EINVAL);
2540             goto dump_format;
2541         }
2542         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2543             want_sdp = 0;
2544         }
2545     }
2546
2547  dump_format:
2548     /* dump the file output parameters - cannot be done before in case
2549        of stream copy */
2550     for(i=0;i<nb_output_files;i++) {
2551         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2552     }
2553
2554     /* dump the stream mapping */
2555     if (verbose >= 0) {
2556         fprintf(stderr, "Stream mapping:\n");
2557         for(i=0;i<nb_ostreams;i++) {
2558             ost = ost_table[i];
2559             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2560                     ist_table[ost->source_index]->file_index,
2561                     ist_table[ost->source_index]->index,
2562                     ost->file_index,
2563                     ost->index);
2564             if (ost->sync_ist != ist_table[ost->source_index])
2565                 fprintf(stderr, " [sync #%d.%d]",
2566                         ost->sync_ist->file_index,
2567                         ost->sync_ist->index);
2568             fprintf(stderr, "\n");
2569         }
2570     }
2571
2572     if (ret) {
2573         fprintf(stderr, "%s\n", error);
2574         goto fail;
2575     }
2576
2577     if (want_sdp) {
2578         print_sdp(output_files, nb_output_files);
2579     }
2580
2581     if (!using_stdin) {
2582         if(verbose >= 0)
2583             fprintf(stderr, "Press [q] to stop encoding\n");
2584         avio_set_interrupt_cb(decode_interrupt_cb);
2585     }
2586     term_init();
2587
2588     timer_start = av_gettime();
2589
2590     for(; received_sigterm == 0;) {
2591         int file_index, ist_index;
2592         AVPacket pkt;
2593         double ipts_min;
2594         double opts_min;
2595
2596     redo:
2597         ipts_min= 1e100;
2598         opts_min= 1e100;
2599         /* if 'q' pressed, exits */
2600         if (!using_stdin) {
2601             if (q_pressed)
2602                 break;
2603             /* read_key() returns 0 on EOF */
2604             key = read_key();
2605             if (key == 'q')
2606                 break;
2607         }
2608
2609         /* select the stream that we must read now by looking at the
2610            smallest output pts */
2611         file_index = -1;
2612         for(i=0;i<nb_ostreams;i++) {
2613             double ipts, opts;
2614             ost = ost_table[i];
2615             os = output_files[ost->file_index];
2616             ist = ist_table[ost->source_index];
2617             if(ist->is_past_recording_time || no_packet[ist->file_index])
2618                 continue;
2619                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2620             ipts = (double)ist->pts;
2621             if (!file_table[ist->file_index].eof_reached){
2622                 if(ipts < ipts_min) {
2623                     ipts_min = ipts;
2624                     if(input_sync ) file_index = ist->file_index;
2625                 }
2626                 if(opts < opts_min) {
2627                     opts_min = opts;
2628                     if(!input_sync) file_index = ist->file_index;
2629                 }
2630             }
2631             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2632                 file_index= -1;
2633                 break;
2634             }
2635         }
2636         /* if none, if is finished */
2637         if (file_index < 0) {
2638             if(no_packet_count){
2639                 no_packet_count=0;
2640                 memset(no_packet, 0, sizeof(no_packet));
2641                 usleep(10000);
2642                 continue;
2643             }
2644             break;
2645         }
2646
2647         /* finish if limit size exhausted */
2648         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2649             break;
2650
2651         /* read a frame from it and output it in the fifo */
2652         is = input_files[file_index];
2653         ret= av_read_frame(is, &pkt);
2654         if(ret == AVERROR(EAGAIN)){
2655             no_packet[file_index]=1;
2656             no_packet_count++;
2657             continue;
2658         }
2659         if (ret < 0) {
2660             file_table[file_index].eof_reached = 1;
2661             if (opt_shortest)
2662                 break;
2663             else
2664                 continue;
2665         }
2666
2667         no_packet_count=0;
2668         memset(no_packet, 0, sizeof(no_packet));
2669
2670         if (do_pkt_dump) {
2671             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2672                              is->streams[pkt.stream_index]);
2673         }
2674         /* the following test is needed in case new streams appear
2675            dynamically in stream : we ignore them */
2676         if (pkt.stream_index >= file_table[file_index].nb_streams)
2677             goto discard_packet;
2678         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2679         ist = ist_table[ist_index];
2680         if (ist->discard)
2681             goto discard_packet;
2682
2683         if (pkt.dts != AV_NOPTS_VALUE)
2684             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2685         if (pkt.pts != AV_NOPTS_VALUE)
2686             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2687
2688         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2689             && input_files_ts_scale[file_index][pkt.stream_index]){
2690             if(pkt.pts != AV_NOPTS_VALUE)
2691                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2692             if(pkt.dts != AV_NOPTS_VALUE)
2693                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2694         }
2695
2696 //        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);
2697         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2698             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2699             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2700             int64_t delta= pkt_dts - ist->next_pts;
2701             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2702                 input_files_ts_offset[ist->file_index]-= delta;
2703                 if (verbose > 2)
2704                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2705                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2706                 if(pkt.pts != AV_NOPTS_VALUE)
2707                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2708             }
2709         }
2710
2711         /* finish if recording time exhausted */
2712         if (recording_time != INT64_MAX &&
2713             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2714             ist->is_past_recording_time = 1;
2715             goto discard_packet;
2716         }
2717
2718         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2719         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2720
2721             if (verbose >= 0)
2722                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2723                         ist->file_index, ist->index);
2724             if (exit_on_error)
2725                 ffmpeg_exit(1);
2726             av_free_packet(&pkt);
2727             goto redo;
2728         }
2729
2730     discard_packet:
2731         av_free_packet(&pkt);
2732
2733         /* dump report by using the output first video and audio streams */
2734         print_report(output_files, ost_table, nb_ostreams, 0);
2735     }
2736
2737     /* at the end of stream, we must flush the decoder buffers */
2738     for(i=0;i<nb_istreams;i++) {
2739         ist = ist_table[i];
2740         if (ist->decoding_needed) {
2741             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2742         }
2743     }
2744
2745     term_exit();
2746
2747     /* write the trailer if needed and close file */
2748     for(i=0;i<nb_output_files;i++) {
2749         os = output_files[i];
2750         av_write_trailer(os);
2751     }
2752
2753     /* dump report by using the first video and audio streams */
2754     print_report(output_files, ost_table, nb_ostreams, 1);
2755
2756     /* close each encoder */
2757     for(i=0;i<nb_ostreams;i++) {
2758         ost = ost_table[i];
2759         if (ost->encoding_needed) {
2760             av_freep(&ost->st->codec->stats_in);
2761             avcodec_close(ost->st->codec);
2762         }
2763 #if CONFIG_AVFILTER
2764         avfilter_graph_free(&ost->graph);
2765 #endif
2766     }
2767
2768     /* close each decoder */
2769     for(i=0;i<nb_istreams;i++) {
2770         ist = ist_table[i];
2771         if (ist->decoding_needed) {
2772             avcodec_close(ist->st->codec);
2773         }
2774     }
2775
2776     /* finished ! */
2777     ret = 0;
2778
2779  fail:
2780     av_freep(&bit_buffer);
2781     av_free(file_table);
2782
2783     if (ist_table) {
2784         for(i=0;i<nb_istreams;i++) {
2785             ist = ist_table[i];
2786             av_free(ist);
2787         }
2788         av_free(ist_table);
2789     }
2790     if (ost_table) {
2791         for(i=0;i<nb_ostreams;i++) {
2792             ost = ost_table[i];
2793             if (ost) {
2794                 if (ost->st->stream_copy)
2795                     av_freep(&ost->st->codec->extradata);
2796                 if (ost->logfile) {
2797                     fclose(ost->logfile);
2798                     ost->logfile = NULL;
2799                 }
2800                 av_fifo_free(ost->fifo); /* works even if fifo is not
2801                                              initialized but set to zero */
2802                 av_freep(&ost->st->codec->subtitle_header);
2803                 av_free(ost->pict_tmp.data[0]);
2804                 av_free(ost->forced_kf_pts);
2805                 if (ost->video_resample)
2806                     sws_freeContext(ost->img_resample_ctx);
2807                 if (ost->resample)
2808                     audio_resample_close(ost->resample);
2809                 if (ost->reformat_ctx)
2810                     av_audio_convert_free(ost->reformat_ctx);
2811                 av_free(ost);
2812             }
2813         }
2814         av_free(ost_table);
2815     }
2816     return ret;
2817 }
2818
2819 static void opt_format(const char *arg)
2820 {
2821     last_asked_format = arg;
2822 }
2823
2824 static void opt_video_rc_override_string(const char *arg)
2825 {
2826     video_rc_override_string = arg;
2827 }
2828
2829 static int opt_me_threshold(const char *opt, const char *arg)
2830 {
2831     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2832     return 0;
2833 }
2834
2835 static int opt_verbose(const char *opt, const char *arg)
2836 {
2837     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2838     return 0;
2839 }
2840
2841 static int opt_frame_rate(const char *opt, const char *arg)
2842 {
2843     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2844         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2845         ffmpeg_exit(1);
2846     }
2847     return 0;
2848 }
2849
2850 static int opt_bitrate(const char *opt, const char *arg)
2851 {
2852     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2853
2854     opt_default(opt, arg);
2855
2856     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2857         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2858
2859     return 0;
2860 }
2861
2862 static int opt_frame_crop(const char *opt, const char *arg)
2863 {
2864     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2865     return AVERROR(EINVAL);
2866 }
2867
2868 static void opt_frame_size(const char *arg)
2869 {
2870     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2871         fprintf(stderr, "Incorrect frame size\n");
2872         ffmpeg_exit(1);
2873     }
2874 }
2875
2876 static int opt_pad(const char *opt, const char *arg) {
2877     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2878     return -1;
2879 }
2880
2881 static void opt_frame_pix_fmt(const char *arg)
2882 {
2883     if (strcmp(arg, "list")) {
2884         frame_pix_fmt = av_get_pix_fmt(arg);
2885         if (frame_pix_fmt == PIX_FMT_NONE) {
2886             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2887             ffmpeg_exit(1);
2888         }
2889     } else {
2890         show_pix_fmts();
2891         ffmpeg_exit(0);
2892     }
2893 }
2894
2895 static void opt_frame_aspect_ratio(const char *arg)
2896 {
2897     int x = 0, y = 0;
2898     double ar = 0;
2899     const char *p;
2900     char *end;
2901
2902     p = strchr(arg, ':');
2903     if (p) {
2904         x = strtol(arg, &end, 10);
2905         if (end == p)
2906             y = strtol(end+1, &end, 10);
2907         if (x > 0 && y > 0)
2908             ar = (double)x / (double)y;
2909     } else
2910         ar = strtod(arg, NULL);
2911
2912     if (!ar) {
2913         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2914         ffmpeg_exit(1);
2915     }
2916     frame_aspect_ratio = ar;
2917 }
2918
2919 static int opt_metadata(const char *opt, const char *arg)
2920 {
2921     char *mid= strchr(arg, '=');
2922
2923     if(!mid){
2924         fprintf(stderr, "Missing =\n");
2925         ffmpeg_exit(1);
2926     }
2927     *mid++= 0;
2928
2929     av_metadata_set2(&metadata, arg, mid, 0);
2930
2931     return 0;
2932 }
2933
2934 static int opt_qscale(const char *opt, const char *arg)
2935 {
2936     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2937     if (video_qscale <= 0 || video_qscale > 255) {
2938         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2939         return AVERROR(EINVAL);
2940     }
2941     return 0;
2942 }
2943
2944 static int opt_top_field_first(const char *opt, const char *arg)
2945 {
2946     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2947     return 0;
2948 }
2949
2950 static int opt_thread_count(const char *opt, const char *arg)
2951 {
2952     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2953 #if !HAVE_THREADS
2954     if (verbose >= 0)
2955         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2956 #endif
2957     return 0;
2958 }
2959
2960 static void opt_audio_sample_fmt(const char *arg)
2961 {
2962     if (strcmp(arg, "list")) {
2963         audio_sample_fmt = av_get_sample_fmt(arg);
2964         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2965             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2966             ffmpeg_exit(1);
2967         }
2968     } else {
2969         int i;
2970         char fmt_str[128];
2971         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2972             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2973         ffmpeg_exit(0);
2974     }
2975 }
2976
2977 static int opt_audio_rate(const char *opt, const char *arg)
2978 {
2979     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2980     return 0;
2981 }
2982
2983 static int opt_audio_channels(const char *opt, const char *arg)
2984 {
2985     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2986     return 0;
2987 }
2988
2989 static int opt_video_channel(const char *opt, const char *arg)
2990 {
2991     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2992     return 0;
2993 }
2994
2995 static void opt_video_standard(const char *arg)
2996 {
2997     video_standard = av_strdup(arg);
2998 }
2999
3000 static void opt_codec(int *pstream_copy, char **pcodec_name,
3001                       int codec_type, const char *arg)
3002 {
3003     av_freep(pcodec_name);
3004     if (!strcmp(arg, "copy")) {
3005         *pstream_copy = 1;
3006     } else {
3007         *pcodec_name = av_strdup(arg);
3008     }
3009 }
3010
3011 static void opt_audio_codec(const char *arg)
3012 {
3013     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
3014 }
3015
3016 static void opt_video_codec(const char *arg)
3017 {
3018     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
3019 }
3020
3021 static void opt_subtitle_codec(const char *arg)
3022 {
3023     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
3024 }
3025
3026 static int opt_codec_tag(const char *opt, const char *arg)
3027 {
3028     char *tail;
3029     uint32_t *codec_tag;
3030
3031     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3032                 !strcmp(opt, "vtag") ? &video_codec_tag :
3033                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3034     if (!codec_tag)
3035         return -1;
3036
3037     *codec_tag = strtol(arg, &tail, 0);
3038     if (!tail || *tail)
3039         *codec_tag = AV_RL32(arg);
3040
3041     return 0;
3042 }
3043
3044 static void opt_map(const char *arg)
3045 {
3046     AVStreamMap *m;
3047     char *p;
3048
3049     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3050     m = &stream_maps[nb_stream_maps-1];
3051
3052     m->file_index = strtol(arg, &p, 0);
3053     if (*p)
3054         p++;
3055
3056     m->stream_index = strtol(p, &p, 0);
3057     if (*p) {
3058         p++;
3059         m->sync_file_index = strtol(p, &p, 0);
3060         if (*p)
3061             p++;
3062         m->sync_stream_index = strtol(p, &p, 0);
3063     } else {
3064         m->sync_file_index = m->file_index;
3065         m->sync_stream_index = m->stream_index;
3066     }
3067 }
3068
3069 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3070 {
3071     *endptr = arg;
3072     if (*arg == ',') {
3073         *type = *(++arg);
3074         switch (*arg) {
3075         case 'g':
3076             break;
3077         case 's':
3078         case 'c':
3079         case 'p':
3080             *index = strtol(++arg, endptr, 0);
3081             break;
3082         default:
3083             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3084             ffmpeg_exit(1);
3085         }
3086     } else
3087         *type = 'g';
3088 }
3089
3090 static void opt_map_metadata(const char *arg)
3091 {
3092     AVMetaDataMap *m, *m1;
3093     char *p;
3094
3095     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3096                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3097
3098     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3099     m->file = strtol(arg, &p, 0);
3100     parse_meta_type(p, &m->type, &m->index, &p);
3101     if (*p)
3102         p++;
3103
3104     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3105     m1->file = strtol(p, &p, 0);
3106     parse_meta_type(p, &m1->type, &m1->index, &p);
3107
3108     if (m->type == 'g' || m1->type == 'g')
3109         metadata_global_autocopy = 0;
3110     if (m->type == 's' || m1->type == 's')
3111         metadata_streams_autocopy = 0;
3112     if (m->type == 'c' || m1->type == 'c')
3113         metadata_chapters_autocopy = 0;
3114 }
3115
3116 static void opt_map_meta_data(const char *arg)
3117 {
3118     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3119                     "Use -map_metadata instead.\n");
3120     opt_map_metadata(arg);
3121 }
3122
3123 static void opt_map_chapters(const char *arg)
3124 {
3125     AVChapterMap *c;
3126     char *p;
3127
3128     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3129                               nb_chapter_maps + 1);
3130     c = &chapter_maps[nb_chapter_maps - 1];
3131     c->out_file = strtol(arg, &p, 0);
3132     if (*p)
3133         p++;
3134
3135     c->in_file = strtol(p, &p, 0);
3136 }
3137
3138 static void opt_input_ts_scale(const char *arg)
3139 {
3140     unsigned int stream;
3141     double scale;
3142     char *p;
3143
3144     stream = strtol(arg, &p, 0);
3145     if (*p)
3146         p++;
3147     scale= strtod(p, &p);
3148
3149     if(stream >= MAX_STREAMS)
3150         ffmpeg_exit(1);
3151
3152     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);
3153     input_files_ts_scale[nb_input_files][stream]= scale;
3154 }
3155
3156 static int opt_recording_time(const char *opt, const char *arg)
3157 {
3158     recording_time = parse_time_or_die(opt, arg, 1);
3159     return 0;
3160 }
3161
3162 static int opt_start_time(const char *opt, const char *arg)
3163 {
3164     start_time = parse_time_or_die(opt, arg, 1);
3165     return 0;
3166 }
3167
3168 static int opt_recording_timestamp(const char *opt, const char *arg)
3169 {
3170     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3171     return 0;
3172 }
3173
3174 static int opt_input_ts_offset(const char *opt, const char *arg)
3175 {
3176     input_ts_offset = parse_time_or_die(opt, arg, 1);
3177     return 0;
3178 }
3179
3180 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3181 {
3182     const char *codec_string = encoder ? "encoder" : "decoder";
3183     AVCodec *codec;
3184
3185     if(!name)
3186         return CODEC_ID_NONE;
3187     codec = encoder ?
3188         avcodec_find_encoder_by_name(name) :
3189         avcodec_find_decoder_by_name(name);
3190     if(!codec) {
3191         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3192         ffmpeg_exit(1);
3193     }
3194     if(codec->type != type) {
3195         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3196         ffmpeg_exit(1);
3197     }
3198     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3199        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3200         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3201                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3202                 codec_string, codec->name);
3203         codec = encoder ?
3204             avcodec_find_encoder(codec->id) :
3205             avcodec_find_decoder(codec->id);
3206         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3207             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3208                     codec_string, codec->name);
3209         ffmpeg_exit(1);
3210     }
3211     return codec->id;
3212 }
3213
3214 static void opt_input_file(const char *filename)
3215 {
3216     AVFormatContext *ic;
3217     AVFormatParameters params, *ap = &params;
3218     AVInputFormat *file_iformat = NULL;
3219     int err, i, ret, rfps, rfps_base;
3220     int64_t timestamp;
3221
3222     if (last_asked_format) {
3223         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3224             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3225             ffmpeg_exit(1);
3226         }
3227         last_asked_format = NULL;
3228     }
3229
3230     if (!strcmp(filename, "-"))
3231         filename = "pipe:";
3232
3233     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3234                     !strcmp(filename, "/dev/stdin");
3235
3236     /* get default parameters from command line */
3237     ic = avformat_alloc_context();
3238     if (!ic) {
3239         print_error(filename, AVERROR(ENOMEM));
3240         ffmpeg_exit(1);
3241     }
3242
3243     memset(ap, 0, sizeof(*ap));
3244     ap->prealloced_context = 1;
3245     ap->sample_rate = audio_sample_rate;
3246     ap->channels = audio_channels;
3247     ap->time_base.den = frame_rate.num;
3248     ap->time_base.num = frame_rate.den;
3249     ap->width = frame_width;
3250     ap->height = frame_height;
3251     ap->pix_fmt = frame_pix_fmt;
3252    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3253     ap->channel = video_channel;
3254     ap->standard = video_standard;
3255
3256     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3257
3258     ic->video_codec_id   =
3259         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3260                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3261     ic->audio_codec_id   =
3262         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3263                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3264     ic->subtitle_codec_id=
3265         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3266                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3267     ic->flags |= AVFMT_FLAG_NONBLOCK;
3268
3269     /* open the input file with generic libav function */
3270     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3271     if (err < 0) {
3272         print_error(filename, err);
3273         ffmpeg_exit(1);
3274     }
3275     if(opt_programid) {
3276         int i, j;
3277         int found=0;
3278         for(i=0; i<ic->nb_streams; i++){
3279             ic->streams[i]->discard= AVDISCARD_ALL;
3280         }
3281         for(i=0; i<ic->nb_programs; i++){
3282             AVProgram *p= ic->programs[i];
3283             if(p->id != opt_programid){
3284                 p->discard = AVDISCARD_ALL;
3285             }else{
3286                 found=1;
3287                 for(j=0; j<p->nb_stream_indexes; j++){
3288                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3289                 }
3290             }
3291         }
3292         if(!found){
3293             fprintf(stderr, "Specified program id not found\n");
3294             ffmpeg_exit(1);
3295         }
3296         opt_programid=0;
3297     }
3298
3299     ic->loop_input = loop_input;
3300
3301     /* If not enough info to get the stream parameters, we decode the
3302        first frames to get it. (used in mpeg case for example) */
3303     ret = av_find_stream_info(ic);
3304     if (ret < 0 && verbose >= 0) {
3305         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3306         av_close_input_file(ic);
3307         ffmpeg_exit(1);
3308     }
3309
3310     timestamp = start_time;
3311     /* add the stream start time */
3312     if (ic->start_time != AV_NOPTS_VALUE)
3313         timestamp += ic->start_time;
3314
3315     /* if seeking requested, we execute it */
3316     if (start_time != 0) {
3317         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3318         if (ret < 0) {
3319             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3320                     filename, (double)timestamp / AV_TIME_BASE);
3321         }
3322         /* reset seek info */
3323         start_time = 0;
3324     }
3325
3326     /* update the current parameters so that they match the one of the input stream */
3327     for(i=0;i<ic->nb_streams;i++) {
3328         AVStream *st = ic->streams[i];
3329         AVCodecContext *dec = st->codec;
3330         dec->thread_count = thread_count;
3331         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3332         switch (dec->codec_type) {
3333         case AVMEDIA_TYPE_AUDIO:
3334             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3335             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]);
3336             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3337             channel_layout    = dec->channel_layout;
3338             audio_channels    = dec->channels;
3339             audio_sample_rate = dec->sample_rate;
3340             audio_sample_fmt  = dec->sample_fmt;
3341             if(audio_disable)
3342                 st->discard= AVDISCARD_ALL;
3343             /* Note that av_find_stream_info can add more streams, and we
3344              * currently have no chance of setting up lowres decoding
3345              * early enough for them. */
3346             if (dec->lowres)
3347                 audio_sample_rate >>= dec->lowres;
3348             break;
3349         case AVMEDIA_TYPE_VIDEO:
3350             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3351             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]);
3352             frame_height = dec->height;
3353             frame_width  = dec->width;
3354             frame_pix_fmt = dec->pix_fmt;
3355             rfps      = ic->streams[i]->r_frame_rate.num;
3356             rfps_base = ic->streams[i]->r_frame_rate.den;
3357             if (dec->lowres) {
3358                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3359                 frame_height >>= dec->lowres;
3360                 frame_width  >>= dec->lowres;
3361                 dec->height = frame_height;
3362                 dec->width  = frame_width;
3363             }
3364             if(me_threshold)
3365                 dec->debug |= FF_DEBUG_MV;
3366
3367             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3368
3369                 if (verbose >= 0)
3370                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3371                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3372
3373                     (float)rfps / rfps_base, rfps, rfps_base);
3374             }
3375             /* update the current frame rate to match the stream frame rate */
3376             frame_rate.num = rfps;
3377             frame_rate.den = rfps_base;
3378
3379             if(video_disable)
3380                 st->discard= AVDISCARD_ALL;
3381             else if(video_discard)
3382                 st->discard= video_discard;
3383             break;
3384         case AVMEDIA_TYPE_DATA:
3385             break;
3386         case AVMEDIA_TYPE_SUBTITLE:
3387             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3388             if(subtitle_disable)
3389                 st->discard = AVDISCARD_ALL;
3390             break;
3391         case AVMEDIA_TYPE_ATTACHMENT:
3392         case AVMEDIA_TYPE_UNKNOWN:
3393             break;
3394         default:
3395             abort();
3396         }
3397     }
3398
3399     input_files[nb_input_files] = ic;
3400     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3401     /* dump the file content */
3402     if (verbose >= 0)
3403         av_dump_format(ic, nb_input_files, filename, 0);
3404
3405     nb_input_files++;
3406
3407     video_channel = 0;
3408
3409     av_freep(&video_codec_name);
3410     av_freep(&audio_codec_name);
3411     av_freep(&subtitle_codec_name);
3412 }
3413
3414 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3415                                          int *has_subtitle_ptr)
3416 {
3417     int has_video, has_audio, has_subtitle, i, j;
3418     AVFormatContext *ic;
3419
3420     has_video = 0;
3421     has_audio = 0;
3422     has_subtitle = 0;
3423     for(j=0;j<nb_input_files;j++) {
3424         ic = input_files[j];
3425         for(i=0;i<ic->nb_streams;i++) {
3426             AVCodecContext *enc = ic->streams[i]->codec;
3427             switch(enc->codec_type) {
3428             case AVMEDIA_TYPE_AUDIO:
3429                 has_audio = 1;
3430                 break;
3431             case AVMEDIA_TYPE_VIDEO:
3432                 has_video = 1;
3433                 break;
3434             case AVMEDIA_TYPE_SUBTITLE:
3435                 has_subtitle = 1;
3436                 break;
3437             case AVMEDIA_TYPE_DATA:
3438             case AVMEDIA_TYPE_ATTACHMENT:
3439             case AVMEDIA_TYPE_UNKNOWN:
3440                 break;
3441             default:
3442                 abort();
3443             }
3444         }
3445     }
3446     *has_video_ptr = has_video;
3447     *has_audio_ptr = has_audio;
3448     *has_subtitle_ptr = has_subtitle;
3449 }
3450
3451 static void new_video_stream(AVFormatContext *oc, int file_idx)
3452 {
3453     AVStream *st;
3454     AVOutputStream *ost;
3455     AVCodecContext *video_enc;
3456     enum CodecID codec_id = CODEC_ID_NONE;
3457     AVCodec *codec= NULL;
3458
3459     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3460     if (!st) {
3461         fprintf(stderr, "Could not alloc stream\n");
3462         ffmpeg_exit(1);
3463     }
3464     ost = new_output_stream(oc, file_idx);
3465
3466     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3467     if(!video_stream_copy){
3468         if (video_codec_name) {
3469             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3470                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3471             codec = avcodec_find_encoder_by_name(video_codec_name);
3472             output_codecs[nb_output_codecs-1] = codec;
3473         } else {
3474             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3475             codec = avcodec_find_encoder(codec_id);
3476         }
3477         ost->frame_aspect_ratio = frame_aspect_ratio;
3478         frame_aspect_ratio = 0;
3479 #if CONFIG_AVFILTER
3480         ost->avfilter= vfilters;
3481         vfilters= NULL;
3482 #endif
3483     }
3484
3485     avcodec_get_context_defaults3(st->codec, codec);
3486     ost->bitstream_filters = video_bitstream_filters;
3487     video_bitstream_filters= NULL;
3488
3489     st->codec->thread_count= thread_count;
3490
3491     video_enc = st->codec;
3492
3493     if(video_codec_tag)
3494         video_enc->codec_tag= video_codec_tag;
3495
3496     if(   (video_global_header&1)
3497        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3498         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3499         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3500     }
3501     if(video_global_header&2){
3502         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3503         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3504     }
3505
3506     if (video_stream_copy) {
3507         st->stream_copy = 1;
3508         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3509         video_enc->sample_aspect_ratio =
3510         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3511     } else {
3512         const char *p;
3513         int i;
3514         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3515
3516         video_enc->codec_id = codec_id;
3517         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3518
3519         if (codec && codec->supported_framerates && !force_fps)
3520             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3521         video_enc->time_base.den = fps.num;
3522         video_enc->time_base.num = fps.den;
3523
3524         video_enc->width = frame_width;
3525         video_enc->height = frame_height;
3526         video_enc->pix_fmt = frame_pix_fmt;
3527         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3528         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3529
3530         choose_pixel_fmt(st, codec);
3531
3532         if (intra_only)
3533             video_enc->gop_size = 0;
3534         if (video_qscale || same_quality) {
3535             video_enc->flags |= CODEC_FLAG_QSCALE;
3536             video_enc->global_quality=
3537                 st->quality = FF_QP2LAMBDA * video_qscale;
3538         }
3539
3540         if(intra_matrix)
3541             video_enc->intra_matrix = intra_matrix;
3542         if(inter_matrix)
3543             video_enc->inter_matrix = inter_matrix;
3544
3545         p= video_rc_override_string;
3546         for(i=0; p; i++){
3547             int start, end, q;
3548             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3549             if(e!=3){
3550                 fprintf(stderr, "error parsing rc_override\n");
3551                 ffmpeg_exit(1);
3552             }
3553             video_enc->rc_override=
3554                 av_realloc(video_enc->rc_override,
3555                            sizeof(RcOverride)*(i+1));
3556             video_enc->rc_override[i].start_frame= start;
3557             video_enc->rc_override[i].end_frame  = end;
3558             if(q>0){
3559                 video_enc->rc_override[i].qscale= q;
3560                 video_enc->rc_override[i].quality_factor= 1.0;
3561             }
3562             else{
3563                 video_enc->rc_override[i].qscale= 0;
3564                 video_enc->rc_override[i].quality_factor= -q/100.0;
3565             }
3566             p= strchr(p, '/');
3567             if(p) p++;
3568         }
3569         video_enc->rc_override_count=i;
3570         if (!video_enc->rc_initial_buffer_occupancy)
3571             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3572         video_enc->me_threshold= me_threshold;
3573         video_enc->intra_dc_precision= intra_dc_precision - 8;
3574
3575         if (do_psnr)
3576             video_enc->flags|= CODEC_FLAG_PSNR;
3577
3578         /* two pass mode */
3579         if (do_pass) {
3580             if (do_pass == 1) {
3581                 video_enc->flags |= CODEC_FLAG_PASS1;
3582             } else {
3583                 video_enc->flags |= CODEC_FLAG_PASS2;
3584             }
3585         }
3586
3587         if (forced_key_frames)
3588             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3589     }
3590     if (video_language) {
3591         av_metadata_set2(&st->metadata, "language", video_language, 0);
3592         av_freep(&video_language);
3593     }
3594
3595     /* reset some key parameters */
3596     video_disable = 0;
3597     av_freep(&video_codec_name);
3598     av_freep(&forced_key_frames);
3599     video_stream_copy = 0;
3600     frame_pix_fmt = PIX_FMT_NONE;
3601 }
3602
3603 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3604 {
3605     AVStream *st;
3606     AVOutputStream *ost;
3607     AVCodec *codec= NULL;
3608     AVCodecContext *audio_enc;
3609     enum CodecID codec_id = CODEC_ID_NONE;
3610
3611     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3612     if (!st) {
3613         fprintf(stderr, "Could not alloc stream\n");
3614         ffmpeg_exit(1);
3615     }
3616     ost = new_output_stream(oc, file_idx);
3617
3618     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3619     if(!audio_stream_copy){
3620         if (audio_codec_name) {
3621             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3622                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3623             codec = avcodec_find_encoder_by_name(audio_codec_name);
3624             output_codecs[nb_output_codecs-1] = codec;
3625         } else {
3626             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3627             codec = avcodec_find_encoder(codec_id);
3628         }
3629     }
3630
3631     avcodec_get_context_defaults3(st->codec, codec);
3632
3633     ost->bitstream_filters = audio_bitstream_filters;
3634     audio_bitstream_filters= NULL;
3635
3636     st->codec->thread_count= thread_count;
3637
3638     audio_enc = st->codec;
3639     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3640
3641     if(audio_codec_tag)
3642         audio_enc->codec_tag= audio_codec_tag;
3643
3644     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3645         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3646         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3647     }
3648     if (audio_stream_copy) {
3649         st->stream_copy = 1;
3650         audio_enc->channels = audio_channels;
3651         audio_enc->sample_rate = audio_sample_rate;
3652     } else {
3653         audio_enc->codec_id = codec_id;
3654         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3655
3656         if (audio_qscale > QSCALE_NONE) {
3657             audio