eed40559952d03101e6c68f1e67733f39a89700d
[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 "libavcore/audioconvert.h"
40 #include "libavcore/parseutils.h"
41 #include "libavcore/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 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_TERMIOS_H
73 #include <fcntl.h>
74 #include <sys/ioctl.h>
75 #include <sys/time.h>
76 #include <termios.h>
77 #elif HAVE_CONIO_H
78 #include <conio.h>
79 #endif
80 #include <time.h>
81
82 #include "cmdutils.h"
83
84 #include "libavutil/avassert.h"
85
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
88
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
91     int file_index;
92     int stream_index;
93     int sync_file_index;
94     int sync_stream_index;
95 } AVStreamMap;
96
97 /**
98  * select an input file for an output file
99  */
100 typedef struct AVMetaDataMap {
101     int  file;      //< file index
102     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103     int  index;     //< stream/chapter/program number
104 } AVMetaDataMap;
105
106 typedef struct AVChapterMap {
107     int in_file;
108     int out_file;
109 } AVChapterMap;
110
111 static const OptionDef options[];
112
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
116 #endif
117
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
126
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
131
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
134
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy   = 1;
139 static int metadata_streams_autocopy  = 1;
140 static int metadata_chapters_autocopy = 1;
141
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
144
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
148
149 static int frame_width  = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
173 #if CONFIG_AVFILTER
174 static char *vfilters = NULL;
175 static AVFilterGraph *graph = NULL;
176 #endif
177
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char  *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
188
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
193
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
196
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static unsigned int sws_flags = SWS_BICUBIC;
249
250 static int64_t timer_start;
251
252 static uint8_t *audio_buf;
253 static uint8_t *audio_out;
254 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
255
256 static short *samples;
257
258 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
261
262 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
263
264 struct AVInputStream;
265
266 typedef struct AVOutputStream {
267     int file_index;          /* file index */
268     int index;               /* stream index in the output file */
269     int source_index;        /* AVInputStream index */
270     AVStream *st;            /* stream in the output file */
271     int encoding_needed;     /* true if encoding needed for this stream */
272     int frame_number;
273     /* input pts and corresponding output pts
274        for A/V sync */
275     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
276     struct AVInputStream *sync_ist; /* input stream to sync against */
277     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
278     AVBitStreamFilterContext *bitstream_filters;
279     /* video only */
280     int video_resample;
281     AVFrame pict_tmp;      /* temporary image for resampling */
282     struct SwsContext *img_resample_ctx; /* for image resampling */
283     int resample_height;
284     int resample_width;
285     int resample_pix_fmt;
286
287     /* full frame size of first frame */
288     int original_height;
289     int original_width;
290
291     /* forced key frames */
292     int64_t *forced_kf_pts;
293     int forced_kf_count;
294     int forced_kf_index;
295
296     /* audio only */
297     int audio_resample;
298     ReSampleContext *resample; /* for audio resampling */
299     int resample_sample_fmt;
300     int resample_channels;
301     int resample_sample_rate;
302     int reformat_pair;
303     AVAudioConvert *reformat_ctx;
304     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
305     FILE *logfile;
306 } AVOutputStream;
307
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
310
311 typedef struct AVInputStream {
312     int file_index;
313     int index;
314     AVStream *st;
315     int discard;             /* true if stream data should be discarded */
316     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
317     int64_t sample_index;      /* current sample */
318
319     int64_t       start;     /* time when read started */
320     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
321                                 is not defined */
322     int64_t       pts;       /* current pts */
323     int is_start;            /* is 1 at the start and after a discontinuity */
324     int showed_multi_packet_warning;
325     int is_past_recording_time;
326 #if CONFIG_AVFILTER
327     AVFilterContext *output_video_filter;
328     AVFilterContext *input_video_filter;
329     AVFrame *filter_frame;
330     int has_filter_frame;
331     AVFilterBufferRef *picref;
332 #endif
333 } AVInputStream;
334
335 typedef struct AVInputFile {
336     int eof_reached;      /* true if eof reached */
337     int ist_index;        /* index of first stream in ist_table */
338     int buffer_size;      /* current total buffer size */
339     int nb_streams;       /* nb streams we are aware of */
340 } AVInputFile;
341
342 #if HAVE_TERMIOS_H
343
344 /* init terminal so that we can grab keys */
345 static struct termios oldtty;
346 #endif
347
348 #if CONFIG_AVFILTER
349
350 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
351 {
352     AVFilterContext *last_filter, *filter;
353     /** filter graph containing all filters including input & output */
354     AVCodecContext *codec = ost->st->codec;
355     AVCodecContext *icodec = ist->st->codec;
356     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
357     AVRational sample_aspect_ratio;
358     char args[255];
359     int ret;
360
361     graph = avfilter_graph_alloc();
362
363     if (ist->st->sample_aspect_ratio.num){
364         sample_aspect_ratio = ist->st->sample_aspect_ratio;
365     }else
366         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
367
368     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
369              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
370              sample_aspect_ratio.num, sample_aspect_ratio.den);
371
372     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
373                                        "src", args, NULL, graph);
374     if (ret < 0)
375         return ret;
376     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
377                                        "out", NULL, &ffsink_ctx, graph);
378     if (ret < 0)
379         return ret;
380     last_filter = ist->input_video_filter;
381
382     if (codec->width  != icodec->width || codec->height != icodec->height) {
383         snprintf(args, 255, "%d:%d:flags=0x%X",
384                  codec->width,
385                  codec->height,
386                  (int)av_get_int(sws_opts, "sws_flags", NULL));
387         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
388                                                 NULL, args, NULL, graph)) < 0)
389             return ret;
390         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
391             return ret;
392         last_filter = filter;
393     }
394
395     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
396     graph->scale_sws_opts = av_strdup(args);
397
398     if (vfilters) {
399         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
400         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
401
402         outputs->name    = av_strdup("in");
403         outputs->filter_ctx = last_filter;
404         outputs->pad_idx = 0;
405         outputs->next    = NULL;
406
407         inputs->name    = av_strdup("out");
408         inputs->filter_ctx = ist->output_video_filter;
409         inputs->pad_idx = 0;
410         inputs->next    = NULL;
411
412         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
413             return ret;
414         av_freep(&vfilters);
415     } else {
416         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
417             return ret;
418     }
419
420     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
421         return ret;
422
423     codec->width  = ist->output_video_filter->inputs[0]->w;
424     codec->height = ist->output_video_filter->inputs[0]->h;
425     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
426         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
427
428     return 0;
429 }
430 #endif /* CONFIG_AVFILTER */
431
432 static void term_exit(void)
433 {
434     av_log(NULL, AV_LOG_QUIET, "");
435 #if HAVE_TERMIOS_H
436     tcsetattr (0, TCSANOW, &oldtty);
437 #endif
438 }
439
440 static volatile int received_sigterm = 0;
441
442 static void
443 sigterm_handler(int sig)
444 {
445     received_sigterm = sig;
446     term_exit();
447 }
448
449 static void term_init(void)
450 {
451 #if HAVE_TERMIOS_H
452     struct termios tty;
453
454     tcgetattr (0, &tty);
455     oldtty = tty;
456     atexit(term_exit);
457
458     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
459                           |INLCR|IGNCR|ICRNL|IXON);
460     tty.c_oflag |= OPOST;
461     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
462     tty.c_cflag &= ~(CSIZE|PARENB);
463     tty.c_cflag |= CS8;
464     tty.c_cc[VMIN] = 1;
465     tty.c_cc[VTIME] = 0;
466
467     tcsetattr (0, TCSANOW, &tty);
468     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
469 #endif
470
471     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
472     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
473 #ifdef SIGXCPU
474     signal(SIGXCPU, sigterm_handler);
475 #endif
476 }
477
478 /* read a key without blocking */
479 static int read_key(void)
480 {
481 #if HAVE_TERMIOS_H
482     int n = 1;
483     unsigned char ch;
484     struct timeval tv;
485     fd_set rfds;
486
487     FD_ZERO(&rfds);
488     FD_SET(0, &rfds);
489     tv.tv_sec = 0;
490     tv.tv_usec = 0;
491     n = select(1, &rfds, NULL, NULL, &tv);
492     if (n > 0) {
493         n = read(0, &ch, 1);
494         if (n == 1)
495             return ch;
496
497         return n;
498     }
499 #elif HAVE_CONIO_H
500     if(kbhit())
501         return(getch());
502 #endif
503     return -1;
504 }
505
506 static int decode_interrupt_cb(void)
507 {
508     return q_pressed || (q_pressed = read_key() == 'q');
509 }
510
511 static int ffmpeg_exit(int ret)
512 {
513     int i;
514
515     /* close files */
516     for(i=0;i<nb_output_files;i++) {
517         AVFormatContext *s = output_files[i];
518         int j;
519         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
520             url_fclose(s->pb);
521         avformat_free_context(s);
522         av_free(output_streams_for_file[i]);
523     }
524     for(i=0;i<nb_input_files;i++) {
525         av_close_input_file(input_files[i]);
526         av_free(input_files_ts_scale[i]);
527     }
528
529     av_free(intra_matrix);
530     av_free(inter_matrix);
531
532     if (vstats_file)
533         fclose(vstats_file);
534     av_free(vstats_filename);
535
536     av_free(streamid_map);
537     av_free(input_codecs);
538     av_free(output_codecs);
539     av_free(stream_maps);
540     av_free(meta_data_maps);
541
542     av_free(video_codec_name);
543     av_free(audio_codec_name);
544     av_free(subtitle_codec_name);
545
546     av_free(video_standard);
547
548     uninit_opts();
549     av_free(audio_buf);
550     av_free(audio_out);
551     allocated_audio_buf_size= allocated_audio_out_size= 0;
552     av_free(samples);
553
554 #if CONFIG_AVFILTER
555     avfilter_uninit();
556 #endif
557
558     if (received_sigterm) {
559         fprintf(stderr,
560             "Received signal %d: terminating.\n",
561             (int) received_sigterm);
562         exit (255);
563     }
564
565     exit(ret); /* not all OS-es handle main() return value */
566     return ret;
567 }
568
569 /* similar to ff_dynarray_add() and av_fast_realloc() */
570 static void *grow_array(void *array, int elem_size, int *size, int new_size)
571 {
572     if (new_size >= INT_MAX / elem_size) {
573         fprintf(stderr, "Array too big.\n");
574         ffmpeg_exit(1);
575     }
576     if (*size < new_size) {
577         uint8_t *tmp = av_realloc(array, new_size*elem_size);
578         if (!tmp) {
579             fprintf(stderr, "Could not alloc buffer.\n");
580             ffmpeg_exit(1);
581         }
582         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
583         *size = new_size;
584         return tmp;
585     }
586     return array;
587 }
588
589 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
590 {
591     if(codec && codec->sample_fmts){
592         const enum AVSampleFormat *p= codec->sample_fmts;
593         for(; *p!=-1; p++){
594             if(*p == st->codec->sample_fmt)
595                 break;
596         }
597         if (*p == -1) {
598             av_log(NULL, AV_LOG_WARNING,
599                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
600                    av_get_sample_fmt_name(st->codec->sample_fmt),
601                    codec->name,
602                    av_get_sample_fmt_name(codec->sample_fmts[0]));
603             st->codec->sample_fmt = codec->sample_fmts[0];
604         }
605     }
606 }
607
608 static void choose_sample_rate(AVStream *st, AVCodec *codec)
609 {
610     if(codec && codec->supported_samplerates){
611         const int *p= codec->supported_samplerates;
612         int best=0;
613         int best_dist=INT_MAX;
614         for(; *p; p++){
615             int dist= abs(st->codec->sample_rate - *p);
616             if(dist < best_dist){
617                 best_dist= dist;
618                 best= *p;
619             }
620         }
621         if(best_dist){
622             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
623         }
624         st->codec->sample_rate= best;
625     }
626 }
627
628 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
629 {
630     if(codec && codec->pix_fmts){
631         const enum PixelFormat *p= codec->pix_fmts;
632         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
633             if(st->codec->codec_id==CODEC_ID_MJPEG){
634                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
635             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
636                 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};
637             }
638         }
639         for(; *p!=-1; p++){
640             if(*p == st->codec->pix_fmt)
641                 break;
642         }
643         if(*p == -1)
644             st->codec->pix_fmt = codec->pix_fmts[0];
645     }
646 }
647
648 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
649 {
650     int idx = oc->nb_streams - 1;
651     AVOutputStream *ost;
652
653     output_streams_for_file[file_idx] =
654         grow_array(output_streams_for_file[file_idx],
655                    sizeof(*output_streams_for_file[file_idx]),
656                    &nb_output_streams_for_file[file_idx],
657                    oc->nb_streams);
658     ost = output_streams_for_file[file_idx][idx] =
659         av_mallocz(sizeof(AVOutputStream));
660     if (!ost) {
661         fprintf(stderr, "Could not alloc output stream\n");
662         ffmpeg_exit(1);
663     }
664     ost->file_index = file_idx;
665     ost->index = idx;
666     return ost;
667 }
668
669 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
670 {
671     int i, err;
672     AVFormatContext *ic;
673     int nopts = 0;
674
675     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
676     if (err < 0)
677         return err;
678     /* copy stream format */
679     s->nb_streams = 0;
680     for(i=0;i<ic->nb_streams;i++) {
681         AVStream *st;
682         AVCodec *codec;
683
684         s->nb_streams++;
685
686         // FIXME: a more elegant solution is needed
687         st = av_mallocz(sizeof(AVStream));
688         memcpy(st, ic->streams[i], sizeof(AVStream));
689         st->codec = avcodec_alloc_context();
690         if (!st->codec) {
691             print_error(filename, AVERROR(ENOMEM));
692             ffmpeg_exit(1);
693         }
694         avcodec_copy_context(st->codec, ic->streams[i]->codec);
695         s->streams[i] = st;
696
697         codec = avcodec_find_encoder(st->codec->codec_id);
698         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
699             if (audio_stream_copy) {
700                 st->stream_copy = 1;
701             } else
702                 choose_sample_fmt(st, codec);
703         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
704             if (video_stream_copy) {
705                 st->stream_copy = 1;
706             } else
707                 choose_pixel_fmt(st, codec);
708         }
709
710         if(st->codec->flags & CODEC_FLAG_BITEXACT)
711             nopts = 1;
712
713         new_output_stream(s, nb_output_files);
714     }
715
716     if (!nopts)
717         s->timestamp = av_gettime();
718
719     av_close_input_file(ic);
720     return 0;
721 }
722
723 static double
724 get_sync_ipts(const AVOutputStream *ost)
725 {
726     const AVInputStream *ist = ost->sync_ist;
727     return (double)(ist->pts - start_time)/AV_TIME_BASE;
728 }
729
730 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
731     int ret;
732
733     while(bsfc){
734         AVPacket new_pkt= *pkt;
735         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
736                                           &new_pkt.data, &new_pkt.size,
737                                           pkt->data, pkt->size,
738                                           pkt->flags & AV_PKT_FLAG_KEY);
739         if(a>0){
740             av_free_packet(pkt);
741             new_pkt.destruct= av_destruct_packet;
742         } else if(a<0){
743             fprintf(stderr, "%s failed for stream %d, codec %s",
744                     bsfc->filter->name, pkt->stream_index,
745                     avctx->codec ? avctx->codec->name : "copy");
746             print_error("", a);
747             if (exit_on_error)
748                 ffmpeg_exit(1);
749         }
750         *pkt= new_pkt;
751
752         bsfc= bsfc->next;
753     }
754
755     ret= av_interleaved_write_frame(s, pkt);
756     if(ret < 0){
757         print_error("av_interleaved_write_frame()", ret);
758         ffmpeg_exit(1);
759     }
760 }
761
762 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
763
764 static void do_audio_out(AVFormatContext *s,
765                          AVOutputStream *ost,
766                          AVInputStream *ist,
767                          unsigned char *buf, int size)
768 {
769     uint8_t *buftmp;
770     int64_t audio_out_size, audio_buf_size;
771     int64_t allocated_for_size= size;
772
773     int size_out, frame_bytes, ret, resample_changed;
774     AVCodecContext *enc= ost->st->codec;
775     AVCodecContext *dec= ist->st->codec;
776     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
777     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
778     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
779
780 need_realloc:
781     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
782     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
783     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
784     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
785     audio_buf_size*= osize*enc->channels;
786
787     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
788     if(coded_bps > 8*osize)
789         audio_out_size= audio_out_size * coded_bps / (8*osize);
790     audio_out_size += FF_MIN_BUFFER_SIZE;
791
792     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
793         fprintf(stderr, "Buffer sizes too large\n");
794         ffmpeg_exit(1);
795     }
796
797     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
798     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
799     if (!audio_buf || !audio_out){
800         fprintf(stderr, "Out of memory in do_audio_out\n");
801         ffmpeg_exit(1);
802     }
803
804     if (enc->channels != dec->channels)
805         ost->audio_resample = 1;
806
807     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
808                        ost->resample_channels    != dec->channels   ||
809                        ost->resample_sample_rate != dec->sample_rate;
810
811     if ((ost->audio_resample && !ost->resample) || resample_changed) {
812         if (resample_changed) {
813             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",
814                    ist->file_index, ist->index,
815                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
816                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
817             ost->resample_sample_fmt  = dec->sample_fmt;
818             ost->resample_channels    = dec->channels;
819             ost->resample_sample_rate = dec->sample_rate;
820             if (ost->resample)
821                 audio_resample_close(ost->resample);
822         }
823         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
824         if (audio_sync_method <= 1 &&
825             ost->resample_sample_fmt  == enc->sample_fmt &&
826             ost->resample_channels    == enc->channels   &&
827             ost->resample_sample_rate == enc->sample_rate) {
828             ost->resample = NULL;
829             ost->audio_resample = 0;
830         } else {
831             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
832                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
833             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
834                                                    enc->sample_rate, dec->sample_rate,
835                                                    enc->sample_fmt,  dec->sample_fmt,
836                                                    16, 10, 0, 0.8);
837             if (!ost->resample) {
838                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
839                         dec->channels, dec->sample_rate,
840                         enc->channels, enc->sample_rate);
841                 ffmpeg_exit(1);
842             }
843         }
844     }
845
846 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
847     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
848         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
849         if (ost->reformat_ctx)
850             av_audio_convert_free(ost->reformat_ctx);
851         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
852                                                    dec->sample_fmt, 1, NULL, 0);
853         if (!ost->reformat_ctx) {
854             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
855                 av_get_sample_fmt_name(dec->sample_fmt),
856                 av_get_sample_fmt_name(enc->sample_fmt));
857             ffmpeg_exit(1);
858         }
859         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
860     }
861
862     if(audio_sync_method){
863         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
864                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
865         double idelta= delta*dec->sample_rate / enc->sample_rate;
866         int byte_delta= ((int)idelta)*2*dec->channels;
867
868         //FIXME resample delay
869         if(fabs(delta) > 50){
870             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
871                 if(byte_delta < 0){
872                     byte_delta= FFMAX(byte_delta, -size);
873                     size += byte_delta;
874                     buf  -= byte_delta;
875                     if(verbose > 2)
876                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
877                     if(!size)
878                         return;
879                     ist->is_start=0;
880                 }else{
881                     static uint8_t *input_tmp= NULL;
882                     input_tmp= av_realloc(input_tmp, byte_delta + size);
883
884                     if(byte_delta > allocated_for_size - size){
885                         allocated_for_size= byte_delta + (int64_t)size;
886                         goto need_realloc;
887                     }
888                     ist->is_start=0;
889
890                     memset(input_tmp, 0, byte_delta);
891                     memcpy(input_tmp + byte_delta, buf, size);
892                     buf= input_tmp;
893                     size += byte_delta;
894                     if(verbose > 2)
895                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
896                 }
897             }else if(audio_sync_method>1){
898                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
899                 av_assert0(ost->audio_resample);
900                 if(verbose > 2)
901                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
902 //                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));
903                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
904             }
905         }
906     }else
907         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
908                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
909
910     if (ost->audio_resample) {
911         buftmp = audio_buf;
912         size_out = audio_resample(ost->resample,
913                                   (short *)buftmp, (short *)buf,
914                                   size / (dec->channels * isize));
915         size_out = size_out * enc->channels * osize;
916     } else {
917         buftmp = buf;
918         size_out = size;
919     }
920
921     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
922         const void *ibuf[6]= {buftmp};
923         void *obuf[6]= {audio_buf};
924         int istride[6]= {isize};
925         int ostride[6]= {osize};
926         int len= size_out/istride[0];
927         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
928             printf("av_audio_convert() failed\n");
929             if (exit_on_error)
930                 ffmpeg_exit(1);
931             return;
932         }
933         buftmp = audio_buf;
934         size_out = len*osize;
935     }
936
937     /* now encode as many frames as possible */
938     if (enc->frame_size > 1) {
939         /* output resampled raw samples */
940         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
941             fprintf(stderr, "av_fifo_realloc2() failed\n");
942             ffmpeg_exit(1);
943         }
944         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
945
946         frame_bytes = enc->frame_size * osize * enc->channels;
947
948         while (av_fifo_size(ost->fifo) >= frame_bytes) {
949             AVPacket pkt;
950             av_init_packet(&pkt);
951
952             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
953
954             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
955
956             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
957                                        (short *)audio_buf);
958             if (ret < 0) {
959                 fprintf(stderr, "Audio encoding failed\n");
960                 ffmpeg_exit(1);
961             }
962             audio_size += ret;
963             pkt.stream_index= ost->index;
964             pkt.data= audio_out;
965             pkt.size= ret;
966             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
967                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
968             pkt.flags |= AV_PKT_FLAG_KEY;
969             write_frame(s, &pkt, enc, ost->bitstream_filters);
970
971             ost->sync_opts += enc->frame_size;
972         }
973     } else {
974         AVPacket pkt;
975         av_init_packet(&pkt);
976
977         ost->sync_opts += size_out / (osize * enc->channels);
978
979         /* output a pcm frame */
980         /* determine the size of the coded buffer */
981         size_out /= osize;
982         if (coded_bps)
983             size_out = size_out*coded_bps/8;
984
985         if(size_out > audio_out_size){
986             fprintf(stderr, "Internal error, buffer size too small\n");
987             ffmpeg_exit(1);
988         }
989
990         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
991         ret = avcodec_encode_audio(enc, audio_out, size_out,
992                                    (short *)buftmp);
993         if (ret < 0) {
994             fprintf(stderr, "Audio encoding failed\n");
995             ffmpeg_exit(1);
996         }
997         audio_size += ret;
998         pkt.stream_index= ost->index;
999         pkt.data= audio_out;
1000         pkt.size= ret;
1001         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1002             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1003         pkt.flags |= AV_PKT_FLAG_KEY;
1004         write_frame(s, &pkt, enc, ost->bitstream_filters);
1005     }
1006 }
1007
1008 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1009 {
1010     AVCodecContext *dec;
1011     AVPicture *picture2;
1012     AVPicture picture_tmp;
1013     uint8_t *buf = 0;
1014
1015     dec = ist->st->codec;
1016
1017     /* deinterlace : must be done before any resize */
1018     if (do_deinterlace) {
1019         int size;
1020
1021         /* create temporary picture */
1022         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1023         buf = av_malloc(size);
1024         if (!buf)
1025             return;
1026
1027         picture2 = &picture_tmp;
1028         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1029
1030         if(avpicture_deinterlace(picture2, picture,
1031                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1032             /* if error, do not deinterlace */
1033             fprintf(stderr, "Deinterlacing failed\n");
1034             av_free(buf);
1035             buf = NULL;
1036             picture2 = picture;
1037         }
1038     } else {
1039         picture2 = picture;
1040     }
1041
1042     if (picture != picture2)
1043         *picture = *picture2;
1044     *bufp = buf;
1045 }
1046
1047 /* we begin to correct av delay at this threshold */
1048 #define AV_DELAY_MAX 0.100
1049
1050 static void do_subtitle_out(AVFormatContext *s,
1051                             AVOutputStream *ost,
1052                             AVInputStream *ist,
1053                             AVSubtitle *sub,
1054                             int64_t pts)
1055 {
1056     static uint8_t *subtitle_out = NULL;
1057     int subtitle_out_max_size = 1024 * 1024;
1058     int subtitle_out_size, nb, i;
1059     AVCodecContext *enc;
1060     AVPacket pkt;
1061
1062     if (pts == AV_NOPTS_VALUE) {
1063         fprintf(stderr, "Subtitle packets must have a pts\n");
1064         if (exit_on_error)
1065             ffmpeg_exit(1);
1066         return;
1067     }
1068
1069     enc = ost->st->codec;
1070
1071     if (!subtitle_out) {
1072         subtitle_out = av_malloc(subtitle_out_max_size);
1073     }
1074
1075     /* Note: DVB subtitle need one packet to draw them and one other
1076        packet to clear them */
1077     /* XXX: signal it in the codec context ? */
1078     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1079         nb = 2;
1080     else
1081         nb = 1;
1082
1083     for(i = 0; i < nb; i++) {
1084         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1085         // start_display_time is required to be 0
1086         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1087         sub->end_display_time -= sub->start_display_time;
1088         sub->start_display_time = 0;
1089         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1090                                                     subtitle_out_max_size, sub);
1091         if (subtitle_out_size < 0) {
1092             fprintf(stderr, "Subtitle encoding failed\n");
1093             ffmpeg_exit(1);
1094         }
1095
1096         av_init_packet(&pkt);
1097         pkt.stream_index = ost->index;
1098         pkt.data = subtitle_out;
1099         pkt.size = subtitle_out_size;
1100         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1101         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1102             /* XXX: the pts correction is handled here. Maybe handling
1103                it in the codec would be better */
1104             if (i == 0)
1105                 pkt.pts += 90 * sub->start_display_time;
1106             else
1107                 pkt.pts += 90 * sub->end_display_time;
1108         }
1109         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1110     }
1111 }
1112
1113 static int bit_buffer_size= 1024*256;
1114 static uint8_t *bit_buffer= NULL;
1115
1116 static void do_video_out(AVFormatContext *s,
1117                          AVOutputStream *ost,
1118                          AVInputStream *ist,
1119                          AVFrame *in_picture,
1120                          int *frame_size)
1121 {
1122     int nb_frames, i, ret;
1123     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1124     AVCodecContext *enc, *dec;
1125     double sync_ipts;
1126
1127     enc = ost->st->codec;
1128     dec = ist->st->codec;
1129
1130     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1131
1132     /* by default, we output a single frame */
1133     nb_frames = 1;
1134
1135     *frame_size = 0;
1136
1137     if(video_sync_method){
1138         double vdelta = sync_ipts - ost->sync_opts;
1139         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1140         if (vdelta < -1.1)
1141             nb_frames = 0;
1142         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1143             if(vdelta<=-0.6){
1144                 nb_frames=0;
1145             }else if(vdelta>0.6)
1146                 ost->sync_opts= lrintf(sync_ipts);
1147         }else if (vdelta > 1.1)
1148             nb_frames = lrintf(vdelta);
1149 //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);
1150         if (nb_frames == 0){
1151             ++nb_frames_drop;
1152             if (verbose>2)
1153                 fprintf(stderr, "*** drop!\n");
1154         }else if (nb_frames > 1) {
1155             nb_frames_dup += nb_frames - 1;
1156             if (verbose>2)
1157                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1158         }
1159     }else
1160         ost->sync_opts= lrintf(sync_ipts);
1161
1162     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1163     if (nb_frames <= 0)
1164         return;
1165
1166     formatted_picture = in_picture;
1167     final_picture = formatted_picture;
1168     padding_src = formatted_picture;
1169     resampling_dst = &ost->pict_tmp;
1170
1171     if (   ost->resample_height != ist->st->codec->height
1172         || ost->resample_width  != ist->st->codec->width
1173         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1174
1175         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1176         if(!ost->video_resample)
1177             ffmpeg_exit(1);
1178     }
1179
1180 #if !CONFIG_AVFILTER
1181     if (ost->video_resample) {
1182         padding_src = NULL;
1183         final_picture = &ost->pict_tmp;
1184         if(  ost->resample_height != ist->st->codec->height
1185           || ost->resample_width  != ist->st->codec->width
1186           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1187
1188             /* initialize a new scaler context */
1189             sws_freeContext(ost->img_resample_ctx);
1190             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1191             ost->img_resample_ctx = sws_getContext(
1192                 ist->st->codec->width,
1193                 ist->st->codec->height,
1194                 ist->st->codec->pix_fmt,
1195                 ost->st->codec->width,
1196                 ost->st->codec->height,
1197                 ost->st->codec->pix_fmt,
1198                 sws_flags, NULL, NULL, NULL);
1199             if (ost->img_resample_ctx == NULL) {
1200                 fprintf(stderr, "Cannot get resampling context\n");
1201                 ffmpeg_exit(1);
1202             }
1203         }
1204         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1205               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1206     }
1207 #endif
1208
1209     /* duplicates frame if needed */
1210     for(i=0;i<nb_frames;i++) {
1211         AVPacket pkt;
1212         av_init_packet(&pkt);
1213         pkt.stream_index= ost->index;
1214
1215         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1216             /* raw pictures are written as AVPicture structure to
1217                avoid any copies. We support temorarily the older
1218                method. */
1219             AVFrame* old_frame = enc->coded_frame;
1220             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1221             pkt.data= (uint8_t *)final_picture;
1222             pkt.size=  sizeof(AVPicture);
1223             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1224             pkt.flags |= AV_PKT_FLAG_KEY;
1225
1226             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1227             enc->coded_frame = old_frame;
1228         } else {
1229             AVFrame big_picture;
1230
1231             big_picture= *final_picture;
1232             /* better than nothing: use input picture interlaced
1233                settings */
1234             big_picture.interlaced_frame = in_picture->interlaced_frame;
1235             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1236                 if(top_field_first == -1)
1237                     big_picture.top_field_first = in_picture->top_field_first;
1238                 else
1239                     big_picture.top_field_first = top_field_first;
1240             }
1241
1242             /* handles sameq here. This is not correct because it may
1243                not be a global option */
1244             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1245             if(!me_threshold)
1246                 big_picture.pict_type = 0;
1247 //            big_picture.pts = AV_NOPTS_VALUE;
1248             big_picture.pts= ost->sync_opts;
1249 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1250 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1251             if (ost->forced_kf_index < ost->forced_kf_count &&
1252                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1253                 big_picture.pict_type = FF_I_TYPE;
1254                 ost->forced_kf_index++;
1255             }
1256             ret = avcodec_encode_video(enc,
1257                                        bit_buffer, bit_buffer_size,
1258                                        &big_picture);
1259             if (ret < 0) {
1260                 fprintf(stderr, "Video encoding failed\n");
1261                 ffmpeg_exit(1);
1262             }
1263
1264             if(ret>0){
1265                 pkt.data= bit_buffer;
1266                 pkt.size= ret;
1267                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1268                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1269 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1270    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1271    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1272
1273                 if(enc->coded_frame->key_frame)
1274                     pkt.flags |= AV_PKT_FLAG_KEY;
1275                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1276                 *frame_size = ret;
1277                 video_size += ret;
1278                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1279                 //        enc->frame_number-1, ret, enc->pict_type);
1280                 /* if two pass, output log */
1281                 if (ost->logfile && enc->stats_out) {
1282                     fprintf(ost->logfile, "%s", enc->stats_out);
1283                 }
1284             }
1285         }
1286         ost->sync_opts++;
1287         ost->frame_number++;
1288     }
1289 }
1290
1291 static double psnr(double d){
1292     return -10.0*log(d)/log(10.0);
1293 }
1294
1295 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1296                            int frame_size)
1297 {
1298     AVCodecContext *enc;
1299     int frame_number;
1300     double ti1, bitrate, avg_bitrate;
1301
1302     /* this is executed just the first time do_video_stats is called */
1303     if (!vstats_file) {
1304         vstats_file = fopen(vstats_filename, "w");
1305         if (!vstats_file) {
1306             perror("fopen");
1307             ffmpeg_exit(1);
1308         }
1309     }
1310
1311     enc = ost->st->codec;
1312     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1313         frame_number = ost->frame_number;
1314         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1315         if (enc->flags&CODEC_FLAG_PSNR)
1316             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1317
1318         fprintf(vstats_file,"f_size= %6d ", frame_size);
1319         /* compute pts value */
1320         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1321         if (ti1 < 0.01)
1322             ti1 = 0.01;
1323
1324         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1325         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1326         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1327             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1328         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1329     }
1330 }
1331
1332 static void print_report(AVFormatContext **output_files,
1333                          AVOutputStream **ost_table, int nb_ostreams,
1334                          int is_last_report)
1335 {
1336     char buf[1024];
1337     AVOutputStream *ost;
1338     AVFormatContext *oc;
1339     int64_t total_size;
1340     AVCodecContext *enc;
1341     int frame_number, vid, i;
1342     double bitrate, ti1, pts;
1343     static int64_t last_time = -1;
1344     static int qp_histogram[52];
1345
1346     if (!is_last_report) {
1347         int64_t cur_time;
1348         /* display the report every 0.5 seconds */
1349         cur_time = av_gettime();
1350         if (last_time == -1) {
1351             last_time = cur_time;
1352             return;
1353         }
1354         if ((cur_time - last_time) < 500000)
1355             return;
1356         last_time = cur_time;
1357     }
1358
1359
1360     oc = output_files[0];
1361
1362     total_size = url_fsize(oc->pb);
1363     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1364         total_size= url_ftell(oc->pb);
1365
1366     buf[0] = '\0';
1367     ti1 = 1e10;
1368     vid = 0;
1369     for(i=0;i<nb_ostreams;i++) {
1370         ost = ost_table[i];
1371         enc = ost->st->codec;
1372         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1373             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1374                      !ost->st->stream_copy ?
1375                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1376         }
1377         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1378             float t = (av_gettime()-timer_start) / 1000000.0;
1379
1380             frame_number = ost->frame_number;
1381             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1382                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1383                      !ost->st->stream_copy ?
1384                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1385             if(is_last_report)
1386                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1387             if(qp_hist){
1388                 int j;
1389                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1390                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1391                     qp_histogram[qp]++;
1392                 for(j=0; j<32; j++)
1393                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1394             }
1395             if (enc->flags&CODEC_FLAG_PSNR){
1396                 int j;
1397                 double error, error_sum=0;
1398                 double scale, scale_sum=0;
1399                 char type[3]= {'Y','U','V'};
1400                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1401                 for(j=0; j<3; j++){
1402                     if(is_last_report){
1403                         error= enc->error[j];
1404                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1405                     }else{
1406                         error= enc->coded_frame->error[j];
1407                         scale= enc->width*enc->height*255.0*255.0;
1408                     }
1409                     if(j) scale/=4;
1410                     error_sum += error;
1411                     scale_sum += scale;
1412                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1413                 }
1414                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1415             }
1416             vid = 1;
1417         }
1418         /* compute min output value */
1419         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1420         if ((pts < ti1) && (pts > 0))
1421             ti1 = pts;
1422     }
1423     if (ti1 < 0.01)
1424         ti1 = 0.01;
1425
1426     if (verbose || is_last_report) {
1427         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1428
1429         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1430             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1431             (double)total_size / 1024, ti1, bitrate);
1432
1433         if (nb_frames_dup || nb_frames_drop)
1434           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1435                   nb_frames_dup, nb_frames_drop);
1436
1437         if (verbose >= 0)
1438             fprintf(stderr, "%s    \r", buf);
1439
1440         fflush(stderr);
1441     }
1442
1443     if (is_last_report && verbose >= 0){
1444         int64_t raw= audio_size + video_size + extra_size;
1445         fprintf(stderr, "\n");
1446         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1447                 video_size/1024.0,
1448                 audio_size/1024.0,
1449                 extra_size/1024.0,
1450                 100.0*(total_size - raw)/raw
1451         );
1452     }
1453 }
1454
1455 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1456 static int output_packet(AVInputStream *ist, int ist_index,
1457                          AVOutputStream **ost_table, int nb_ostreams,
1458                          const AVPacket *pkt)
1459 {
1460     AVFormatContext *os;
1461     AVOutputStream *ost;
1462     int ret, i;
1463     int got_picture;
1464     AVFrame picture;
1465     void *buffer_to_free;
1466     static unsigned int samples_size= 0;
1467     AVSubtitle subtitle, *subtitle_to_free;
1468     int64_t pkt_pts = AV_NOPTS_VALUE;
1469 #if CONFIG_AVFILTER
1470     int frame_available;
1471 #endif
1472
1473     AVPacket avpkt;
1474     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1475
1476     if(ist->next_pts == AV_NOPTS_VALUE)
1477         ist->next_pts= ist->pts;
1478
1479     if (pkt == NULL) {
1480         /* EOF handling */
1481         av_init_packet(&avpkt);
1482         avpkt.data = NULL;
1483         avpkt.size = 0;
1484         goto handle_eof;
1485     } else {
1486         avpkt = *pkt;
1487     }
1488
1489     if(pkt->dts != AV_NOPTS_VALUE)
1490         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1491     if(pkt->pts != AV_NOPTS_VALUE)
1492         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1493
1494     //while we have more to decode or while the decoder did output something on EOF
1495     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1496         uint8_t *data_buf, *decoded_data_buf;
1497         int data_size, decoded_data_size;
1498     handle_eof:
1499         ist->pts= ist->next_pts;
1500
1501         if(avpkt.size && avpkt.size != pkt->size &&
1502            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1503             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1504             ist->showed_multi_packet_warning=1;
1505         }
1506
1507         /* decode the packet if needed */
1508         decoded_data_buf = NULL; /* fail safe */
1509         decoded_data_size= 0;
1510         data_buf  = avpkt.data;
1511         data_size = avpkt.size;
1512         subtitle_to_free = NULL;
1513         if (ist->decoding_needed) {
1514             switch(ist->st->codec->codec_type) {
1515             case AVMEDIA_TYPE_AUDIO:{
1516                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1517                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1518                     av_free(samples);
1519                     samples= av_malloc(samples_size);
1520                 }
1521                 decoded_data_size= samples_size;
1522                     /* XXX: could avoid copy if PCM 16 bits with same
1523                        endianness as CPU */
1524                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1525                                             &avpkt);
1526                 if (ret < 0)
1527                     goto fail_decode;
1528                 avpkt.data += ret;
1529                 avpkt.size -= ret;
1530                 data_size   = ret;
1531                 /* Some bug in mpeg audio decoder gives */
1532                 /* decoded_data_size < 0, it seems they are overflows */
1533                 if (decoded_data_size <= 0) {
1534                     /* no audio frame */
1535                     continue;
1536                 }
1537                 decoded_data_buf = (uint8_t *)samples;
1538                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1539                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1540                 break;}
1541             case AVMEDIA_TYPE_VIDEO:
1542                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1543                     /* XXX: allocate picture correctly */
1544                     avcodec_get_frame_defaults(&picture);
1545                     avpkt.pts = pkt_pts;
1546                     avpkt.dts = ist->pts;
1547                     pkt_pts = AV_NOPTS_VALUE;
1548
1549                     ret = avcodec_decode_video2(ist->st->codec,
1550                                                 &picture, &got_picture, &avpkt);
1551                     ist->st->quality= picture.quality;
1552                     if (ret < 0)
1553                         goto fail_decode;
1554                     if (!got_picture) {
1555                         /* no picture yet */
1556                         goto discard_packet;
1557                     }
1558                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1559                     if (ist->st->codec->time_base.num != 0) {
1560                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1561                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1562                                           ist->st->codec->time_base.num * ticks) /
1563                             ist->st->codec->time_base.den;
1564                     }
1565                     avpkt.size = 0;
1566                     break;
1567             case AVMEDIA_TYPE_SUBTITLE:
1568                 ret = avcodec_decode_subtitle2(ist->st->codec,
1569                                                &subtitle, &got_picture, &avpkt);
1570                 if (ret < 0)
1571                     goto fail_decode;
1572                 if (!got_picture) {
1573                     goto discard_packet;
1574                 }
1575                 subtitle_to_free = &subtitle;
1576                 avpkt.size = 0;
1577                 break;
1578             default:
1579                 goto fail_decode;
1580             }
1581         } else {
1582             switch(ist->st->codec->codec_type) {
1583             case AVMEDIA_TYPE_AUDIO:
1584                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1585                     ist->st->codec->sample_rate;
1586                 break;
1587             case AVMEDIA_TYPE_VIDEO:
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                 break;
1595             }
1596             ret = avpkt.size;
1597             avpkt.size = 0;
1598         }
1599
1600         buffer_to_free = NULL;
1601         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1602             pre_process_video_frame(ist, (AVPicture *)&picture,
1603                                     &buffer_to_free);
1604         }
1605
1606 #if CONFIG_AVFILTER
1607         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1608             AVRational sar;
1609             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1610             else                                  sar = ist->st->codec->sample_aspect_ratio;
1611             // add it to be filtered
1612             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1613                                      ist->pts,
1614                                      sar);
1615         }
1616 #endif
1617
1618         // preprocess audio (volume)
1619         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1620             if (audio_volume != 256) {
1621                 short *volp;
1622                 volp = samples;
1623                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1624                     int v = ((*volp) * audio_volume + 128) >> 8;
1625                     if (v < -32768) v = -32768;
1626                     if (v >  32767) v = 32767;
1627                     *volp++ = v;
1628                 }
1629             }
1630         }
1631
1632         /* frame rate emulation */
1633         if (rate_emu) {
1634             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1635             int64_t now = av_gettime() - ist->start;
1636             if (pts > now)
1637                 usleep(pts - now);
1638         }
1639 #if CONFIG_AVFILTER
1640         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1641             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1642 #endif
1643         /* if output time reached then transcode raw format,
1644            encode packets and output them */
1645         if (start_time == 0 || ist->pts >= start_time)
1646 #if CONFIG_AVFILTER
1647         while (frame_available) {
1648             AVRational ist_pts_tb;
1649             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1650                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1651             if (ist->picref)
1652                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1653 #endif
1654             for(i=0;i<nb_ostreams;i++) {
1655                 int frame_size;
1656
1657                 ost = ost_table[i];
1658                 if (ost->source_index == ist_index) {
1659                     os = output_files[ost->file_index];
1660
1661                     /* set the input output pts pairs */
1662                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1663
1664                     if (ost->encoding_needed) {
1665                         av_assert0(ist->decoding_needed);
1666                         switch(ost->st->codec->codec_type) {
1667                         case AVMEDIA_TYPE_AUDIO:
1668                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1669                             break;
1670                         case AVMEDIA_TYPE_VIDEO:
1671 #if CONFIG_AVFILTER
1672                             if (ist->picref->video)
1673                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1674 #endif
1675                             do_video_out(os, ost, ist, &picture, &frame_size);
1676                             if (vstats_filename && frame_size)
1677                                 do_video_stats(os, ost, frame_size);
1678                             break;
1679                         case AVMEDIA_TYPE_SUBTITLE:
1680                             do_subtitle_out(os, ost, ist, &subtitle,
1681                                             pkt->pts);
1682                             break;
1683                         default:
1684                             abort();
1685                         }
1686                     } else {
1687                         AVFrame avframe; //FIXME/XXX remove this
1688                         AVPacket opkt;
1689                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1690
1691                         av_init_packet(&opkt);
1692
1693                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1694                             continue;
1695
1696                         /* no reencoding needed : output the packet directly */
1697                         /* force the input stream PTS */
1698
1699                         avcodec_get_frame_defaults(&avframe);
1700                         ost->st->codec->coded_frame= &avframe;
1701                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1702
1703                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1704                             audio_size += data_size;
1705                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1706                             video_size += data_size;
1707                             ost->sync_opts++;
1708                         }
1709
1710                         opkt.stream_index= ost->index;
1711                         if(pkt->pts != AV_NOPTS_VALUE)
1712                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1713                         else
1714                             opkt.pts= AV_NOPTS_VALUE;
1715
1716                         if (pkt->dts == AV_NOPTS_VALUE)
1717                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1718                         else
1719                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1720                         opkt.dts -= ost_tb_start_time;
1721
1722                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1723                         opkt.flags= pkt->flags;
1724
1725                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1726                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1727                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1728                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1729                            ) {
1730                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1731                                 opkt.destruct= av_destruct_packet;
1732                         } else {
1733                             opkt.data = data_buf;
1734                             opkt.size = data_size;
1735                         }
1736
1737                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1738                         ost->st->codec->frame_number++;
1739                         ost->frame_number++;
1740                         av_free_packet(&opkt);
1741                     }
1742                 }
1743             }
1744
1745 #if CONFIG_AVFILTER
1746             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1747                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1748             if(ist->picref)
1749                 avfilter_unref_buffer(ist->picref);
1750         }
1751 #endif
1752         av_free(buffer_to_free);
1753         /* XXX: allocate the subtitles in the codec ? */
1754         if (subtitle_to_free) {
1755             avsubtitle_free(subtitle_to_free);
1756             subtitle_to_free = NULL;
1757         }
1758     }
1759  discard_packet:
1760     if (pkt == NULL) {
1761         /* EOF handling */
1762
1763         for(i=0;i<nb_ostreams;i++) {
1764             ost = ost_table[i];
1765             if (ost->source_index == ist_index) {
1766                 AVCodecContext *enc= ost->st->codec;
1767                 os = output_files[ost->file_index];
1768
1769                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1770                     continue;
1771                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1772                     continue;
1773
1774                 if (ost->encoding_needed) {
1775                     for(;;) {
1776                         AVPacket pkt;
1777                         int fifo_bytes;
1778                         av_init_packet(&pkt);
1779                         pkt.stream_index= ost->index;
1780
1781                         switch(ost->st->codec->codec_type) {
1782                         case AVMEDIA_TYPE_AUDIO:
1783                             fifo_bytes = av_fifo_size(ost->fifo);
1784                             ret = 0;
1785                             /* encode any samples remaining in fifo */
1786                             if (fifo_bytes > 0) {
1787                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1788                                 int fs_tmp = enc->frame_size;
1789
1790                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1791                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1792                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1793                                 } else { /* pad */
1794                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1795                                     if (allocated_audio_buf_size < frame_bytes)
1796                                         ffmpeg_exit(1);
1797                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1798                                 }
1799
1800                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1801                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1802                                                           ost->st->time_base.num, enc->sample_rate);
1803                                 enc->frame_size = fs_tmp;
1804                             }
1805                             if(ret <= 0) {
1806                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1807                             }
1808                             if (ret < 0) {
1809                                 fprintf(stderr, "Audio encoding failed\n");
1810                                 ffmpeg_exit(1);
1811                             }
1812                             audio_size += ret;
1813                             pkt.flags |= AV_PKT_FLAG_KEY;
1814                             break;
1815                         case AVMEDIA_TYPE_VIDEO:
1816                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1817                             if (ret < 0) {
1818                                 fprintf(stderr, "Video encoding failed\n");
1819                                 ffmpeg_exit(1);
1820                             }
1821                             video_size += ret;
1822                             if(enc->coded_frame && enc->coded_frame->key_frame)
1823                                 pkt.flags |= AV_PKT_FLAG_KEY;
1824                             if (ost->logfile && enc->stats_out) {
1825                                 fprintf(ost->logfile, "%s", enc->stats_out);
1826                             }
1827                             break;
1828                         default:
1829                             ret=-1;
1830                         }
1831
1832                         if(ret<=0)
1833                             break;
1834                         pkt.data= bit_buffer;
1835                         pkt.size= ret;
1836                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1837                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1838                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1839                     }
1840                 }
1841             }
1842         }
1843     }
1844
1845     return 0;
1846  fail_decode:
1847     return -1;
1848 }
1849
1850 static void print_sdp(AVFormatContext **avc, int n)
1851 {
1852     char sdp[2048];
1853
1854     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1855     printf("SDP:\n%s\n", sdp);
1856     fflush(stdout);
1857 }
1858
1859 static int copy_chapters(int infile, int outfile)
1860 {
1861     AVFormatContext *is = input_files[infile];
1862     AVFormatContext *os = output_files[outfile];
1863     int i;
1864
1865     for (i = 0; i < is->nb_chapters; i++) {
1866         AVChapter *in_ch = is->chapters[i], *out_ch;
1867         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1868                                       AV_TIME_BASE_Q, in_ch->time_base);
1869         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1870                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1871
1872
1873         if (in_ch->end < ts_off)
1874             continue;
1875         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1876             break;
1877
1878         out_ch = av_mallocz(sizeof(AVChapter));
1879         if (!out_ch)
1880             return AVERROR(ENOMEM);
1881
1882         out_ch->id        = in_ch->id;
1883         out_ch->time_base = in_ch->time_base;
1884         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1885         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1886
1887         if (metadata_chapters_autocopy)
1888             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1889
1890         os->nb_chapters++;
1891         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1892         if (!os->chapters)
1893             return AVERROR(ENOMEM);
1894         os->chapters[os->nb_chapters - 1] = out_ch;
1895     }
1896     return 0;
1897 }
1898
1899 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1900                                     AVCodecContext *avctx)
1901 {
1902     char *p;
1903     int n = 1, i;
1904     int64_t t;
1905
1906     for (p = kf; *p; p++)
1907         if (*p == ',')
1908             n++;
1909     ost->forced_kf_count = n;
1910     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1911     if (!ost->forced_kf_pts) {
1912         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1913         ffmpeg_exit(1);
1914     }
1915     for (i = 0; i < n; i++) {
1916         p = i ? strchr(p, ',') + 1 : kf;
1917         t = parse_time_or_die("force_key_frames", p, 1);
1918         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1919     }
1920 }
1921
1922 /*
1923  * The following code is the main loop of the file converter
1924  */
1925 static int transcode(AVFormatContext **output_files,
1926                      int nb_output_files,
1927                      AVFormatContext **input_files,
1928                      int nb_input_files,
1929                      AVStreamMap *stream_maps, int nb_stream_maps)
1930 {
1931     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1932     AVFormatContext *is, *os;
1933     AVCodecContext *codec, *icodec;
1934     AVOutputStream *ost, **ost_table = NULL;
1935     AVInputStream *ist, **ist_table = NULL;
1936     AVInputFile *file_table;
1937     char error[1024];
1938     int key;
1939     int want_sdp = 1;
1940     uint8_t no_packet[MAX_FILES]={0};
1941     int no_packet_count=0;
1942
1943     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1944     if (!file_table)
1945         goto fail;
1946
1947     /* input stream init */
1948     j = 0;
1949     for(i=0;i<nb_input_files;i++) {
1950         is = input_files[i];
1951         file_table[i].ist_index = j;
1952         file_table[i].nb_streams = is->nb_streams;
1953         j += is->nb_streams;
1954     }
1955     nb_istreams = j;
1956
1957     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1958     if (!ist_table)
1959         goto fail;
1960
1961     for(i=0;i<nb_istreams;i++) {
1962         ist = av_mallocz(sizeof(AVInputStream));
1963         if (!ist)
1964             goto fail;
1965         ist_table[i] = ist;
1966     }
1967     j = 0;
1968     for(i=0;i<nb_input_files;i++) {
1969         is = input_files[i];
1970         for(k=0;k<is->nb_streams;k++) {
1971             ist = ist_table[j++];
1972             ist->st = is->streams[k];
1973             ist->file_index = i;
1974             ist->index = k;
1975             ist->discard = 1; /* the stream is discarded by default
1976                                  (changed later) */
1977
1978             if (rate_emu) {
1979                 ist->start = av_gettime();
1980             }
1981         }
1982     }
1983
1984     /* output stream init */
1985     nb_ostreams = 0;
1986     for(i=0;i<nb_output_files;i++) {
1987         os = output_files[i];
1988         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1989             dump_format(output_files[i], i, output_files[i]->filename, 1);
1990             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1991             ret = AVERROR(EINVAL);
1992             goto fail;
1993         }
1994         nb_ostreams += os->nb_streams;
1995     }
1996     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1997         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1998         ret = AVERROR(EINVAL);
1999         goto fail;
2000     }
2001
2002     /* Sanity check the mapping args -- do the input files & streams exist? */
2003     for(i=0;i<nb_stream_maps;i++) {
2004         int fi = stream_maps[i].file_index;
2005         int si = stream_maps[i].stream_index;
2006
2007         if (fi < 0 || fi > nb_input_files - 1 ||
2008             si < 0 || si > file_table[fi].nb_streams - 1) {
2009             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2010             ret = AVERROR(EINVAL);
2011             goto fail;
2012         }
2013         fi = stream_maps[i].sync_file_index;
2014         si = stream_maps[i].sync_stream_index;
2015         if (fi < 0 || fi > nb_input_files - 1 ||
2016             si < 0 || si > file_table[fi].nb_streams - 1) {
2017             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2018             ret = AVERROR(EINVAL);
2019             goto fail;
2020         }
2021     }
2022
2023     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2024     if (!ost_table)
2025         goto fail;
2026     n = 0;
2027     for(k=0;k<nb_output_files;k++) {
2028         os = output_files[k];
2029         for(i=0;i<os->nb_streams;i++,n++) {
2030             int found;
2031             ost = ost_table[n] = output_streams_for_file[k][i];
2032             ost->st = os->streams[i];
2033             if (nb_stream_maps > 0) {
2034                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2035                     stream_maps[n].stream_index;
2036
2037                 /* Sanity check that the stream types match */
2038                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2039                     int i= ost->file_index;
2040                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2041                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2042                         stream_maps[n].file_index, stream_maps[n].stream_index,
2043                         ost->file_index, ost->index);
2044                     ffmpeg_exit(1);
2045                 }
2046
2047             } else {
2048                 int best_nb_frames=-1;
2049                 /* get corresponding input stream index : we select the first one with the right type */
2050                 found = 0;
2051                 for(j=0;j<nb_istreams;j++) {
2052                     int skip=0;
2053                     ist = ist_table[j];
2054                     if(opt_programid){
2055                         int pi,si;
2056                         AVFormatContext *f= input_files[ ist->file_index ];
2057                         skip=1;
2058                         for(pi=0; pi<f->nb_programs; pi++){
2059                             AVProgram *p= f->programs[pi];
2060                             if(p->id == opt_programid)
2061                                 for(si=0; si<p->nb_stream_indexes; si++){
2062                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2063                                         skip=0;
2064                                 }
2065                         }
2066                     }
2067                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2068                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2069                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2070                             best_nb_frames= ist->st->codec_info_nb_frames;
2071                             ost->source_index = j;
2072                             found = 1;
2073                         }
2074                     }
2075                 }
2076
2077                 if (!found) {
2078                     if(! opt_programid) {
2079                         /* try again and reuse existing stream */
2080                         for(j=0;j<nb_istreams;j++) {
2081                             ist = ist_table[j];
2082                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2083                                 && ist->st->discard != AVDISCARD_ALL) {
2084                                 ost->source_index = j;
2085                                 found = 1;
2086                             }
2087                         }
2088                     }
2089                     if (!found) {
2090                         int i= ost->file_index;
2091                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2092                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2093                                 ost->file_index, ost->index);
2094                         ffmpeg_exit(1);
2095                     }
2096                 }
2097             }
2098             ist = ist_table[ost->source_index];
2099             ist->discard = 0;
2100             ost->sync_ist = (nb_stream_maps > 0) ?
2101                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2102                          stream_maps[n].sync_stream_index] : ist;
2103         }
2104     }
2105
2106     /* for each output stream, we compute the right encoding parameters */
2107     for(i=0;i<nb_ostreams;i++) {
2108         ost = ost_table[i];
2109         os = output_files[ost->file_index];
2110         ist = ist_table[ost->source_index];
2111
2112         codec = ost->st->codec;
2113         icodec = ist->st->codec;
2114
2115         if (metadata_streams_autocopy)
2116             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2117                              AV_METADATA_DONT_OVERWRITE);
2118
2119         ost->st->disposition = ist->st->disposition;
2120         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2121         codec->chroma_sample_location = icodec->chroma_sample_location;
2122
2123         if (ost->st->stream_copy) {
2124             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2125
2126             if (extra_size > INT_MAX)
2127                 goto fail;
2128
2129             /* if stream_copy is selected, no need to decode or encode */
2130             codec->codec_id = icodec->codec_id;
2131             codec->codec_type = icodec->codec_type;
2132
2133             if(!codec->codec_tag){
2134                 if(   !os->oformat->codec_tag
2135                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2136                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2137                     codec->codec_tag = icodec->codec_tag;
2138             }
2139
2140             codec->bit_rate = icodec->bit_rate;
2141             codec->rc_max_rate    = icodec->rc_max_rate;
2142             codec->rc_buffer_size = icodec->rc_buffer_size;
2143             codec->extradata= av_mallocz(extra_size);
2144             if (!codec->extradata)
2145                 goto fail;
2146             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2147             codec->extradata_size= icodec->extradata_size;
2148             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){
2149                 codec->time_base = icodec->time_base;
2150                 codec->time_base.num *= icodec->ticks_per_frame;
2151                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2152                           codec->time_base.num, codec->time_base.den, INT_MAX);
2153             }else
2154                 codec->time_base = ist->st->time_base;
2155             switch(codec->codec_type) {
2156             case AVMEDIA_TYPE_AUDIO:
2157                 if(audio_volume != 256) {
2158                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2159                     ffmpeg_exit(1);
2160                 }
2161                 codec->channel_layout = icodec->channel_layout;
2162                 codec->sample_rate = icodec->sample_rate;
2163                 codec->channels = icodec->channels;
2164                 codec->frame_size = icodec->frame_size;
2165                 codec->block_align= icodec->block_align;
2166                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2167                     codec->block_align= 0;
2168                 if(codec->codec_id == CODEC_ID_AC3)
2169                     codec->block_align= 0;
2170                 break;
2171             case AVMEDIA_TYPE_VIDEO:
2172                 codec->pix_fmt = icodec->pix_fmt;
2173                 codec->width = icodec->width;
2174                 codec->height = icodec->height;
2175                 codec->has_b_frames = icodec->has_b_frames;
2176                 break;
2177             case AVMEDIA_TYPE_SUBTITLE:
2178                 codec->width = icodec->width;
2179                 codec->height = icodec->height;
2180                 break;
2181             default:
2182                 abort();
2183             }
2184         } else {
2185             switch(codec->codec_type) {
2186             case AVMEDIA_TYPE_AUDIO:
2187                 ost->fifo= av_fifo_alloc(1024);
2188                 if(!ost->fifo)
2189                     goto fail;
2190                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2191                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2192                 icodec->request_channels = codec->channels;
2193                 ist->decoding_needed = 1;
2194                 ost->encoding_needed = 1;
2195                 ost->resample_sample_fmt  = icodec->sample_fmt;
2196                 ost->resample_sample_rate = icodec->sample_rate;
2197                 ost->resample_channels    = icodec->channels;
2198                 break;
2199             case AVMEDIA_TYPE_VIDEO:
2200                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2201                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2202                     ffmpeg_exit(1);
2203                 }
2204                 ost->video_resample = (codec->width != icodec->width   ||
2205                                        codec->height != icodec->height ||
2206                         (codec->pix_fmt != icodec->pix_fmt));
2207                 if (ost->video_resample) {
2208 #if !CONFIG_AVFILTER
2209                     avcodec_get_frame_defaults(&ost->pict_tmp);
2210                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2211                                          codec->width, codec->height)) {
2212                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2213                         ffmpeg_exit(1);
2214                     }
2215                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2216                     ost->img_resample_ctx = sws_getContext(
2217                         icodec->width,
2218                         icodec->height,
2219                             icodec->pix_fmt,
2220                             codec->width,
2221                             codec->height,
2222                             codec->pix_fmt,
2223                             sws_flags, NULL, NULL, NULL);
2224                     if (ost->img_resample_ctx == NULL) {
2225                         fprintf(stderr, "Cannot get resampling context\n");
2226                         ffmpeg_exit(1);
2227                     }
2228
2229                     ost->original_height = icodec->height;
2230                     ost->original_width  = icodec->width;
2231 #endif
2232                     codec->bits_per_raw_sample= 0;
2233                 }
2234                 ost->resample_height = icodec->height;
2235                 ost->resample_width  = icodec->width;
2236                 ost->resample_pix_fmt= icodec->pix_fmt;
2237                 ost->encoding_needed = 1;
2238                 ist->decoding_needed = 1;
2239
2240 #if CONFIG_AVFILTER
2241                 if (configure_filters(ist, ost)) {
2242                     fprintf(stderr, "Error opening filters!\n");
2243                     exit(1);
2244                 }
2245 #endif
2246                 break;
2247             case AVMEDIA_TYPE_SUBTITLE:
2248                 ost->encoding_needed = 1;
2249                 ist->decoding_needed = 1;
2250                 break;
2251             default:
2252                 abort();
2253                 break;
2254             }
2255             /* two pass mode */
2256             if (ost->encoding_needed &&
2257                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2258                 char logfilename[1024];
2259                 FILE *f;
2260
2261                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2262                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2263                          i);
2264                 if (codec->flags & CODEC_FLAG_PASS1) {
2265                     f = fopen(logfilename, "wb");
2266                     if (!f) {
2267                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2268                         ffmpeg_exit(1);
2269                     }
2270                     ost->logfile = f;
2271                 } else {
2272                     char  *logbuffer;
2273                     size_t logbuffer_size;
2274                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2275                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2276                         ffmpeg_exit(1);
2277                     }
2278                     codec->stats_in = logbuffer;
2279                 }
2280             }
2281         }
2282         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2283             int size= codec->width * codec->height;
2284             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2285         }
2286     }
2287
2288     if (!bit_buffer)
2289         bit_buffer = av_malloc(bit_buffer_size);
2290     if (!bit_buffer) {
2291         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2292                 bit_buffer_size);
2293         ret = AVERROR(ENOMEM);
2294         goto fail;
2295     }
2296
2297     /* open each encoder */
2298     for(i=0;i<nb_ostreams;i++) {
2299         ost = ost_table[i];
2300         if (ost->encoding_needed) {
2301             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2302             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2303             if (!codec)
2304                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2305             if (!codec) {
2306                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2307                          ost->st->codec->codec_id, ost->file_index, ost->index);
2308                 ret = AVERROR(EINVAL);
2309                 goto dump_format;
2310             }
2311             if (dec->subtitle_header) {
2312                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2313                 if (!ost->st->codec->subtitle_header) {
2314                     ret = AVERROR(ENOMEM);
2315                     goto dump_format;
2316                 }
2317                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2318                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2319             }
2320             if (avcodec_open(ost->st->codec, codec) < 0) {
2321                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2322                         ost->file_index, ost->index);
2323                 ret = AVERROR(EINVAL);
2324                 goto dump_format;
2325             }
2326             extra_size += ost->st->codec->extradata_size;
2327         }
2328     }
2329
2330     /* open each decoder */
2331     for(i=0;i<nb_istreams;i++) {
2332         ist = ist_table[i];
2333         if (ist->decoding_needed) {
2334             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2335             if (!codec)
2336                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2337             if (!codec) {
2338                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2339                         ist->st->codec->codec_id, ist->file_index, ist->index);
2340                 ret = AVERROR(EINVAL);
2341                 goto dump_format;
2342             }
2343             if (avcodec_open(ist->st->codec, codec) < 0) {
2344                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2345                         ist->file_index, ist->index);
2346                 ret = AVERROR(EINVAL);
2347                 goto dump_format;
2348             }
2349             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2350             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2351         }
2352     }
2353
2354     /* init pts */
2355     for(i=0;i<nb_istreams;i++) {
2356         AVStream *st;
2357         ist = ist_table[i];
2358         st= ist->st;
2359         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2360         ist->next_pts = AV_NOPTS_VALUE;
2361         ist->is_start = 1;
2362     }
2363
2364     /* set meta data information from input file if required */
2365     for (i=0;i<nb_meta_data_maps;i++) {
2366         AVFormatContext *files[2];
2367         AVMetadata      **meta[2];
2368         int j;
2369
2370 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2371         if ((index) < 0 || (index) >= (nb_elems)) {\
2372             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2373                      (desc), (index));\
2374             ret = AVERROR(EINVAL);\
2375             goto dump_format;\
2376         }
2377
2378         int out_file_index = meta_data_maps[i][0].file;
2379         int in_file_index = meta_data_maps[i][1].file;
2380         if (in_file_index < 0 || out_file_index < 0)
2381             continue;
2382         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2383         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2384
2385         files[0] = output_files[out_file_index];
2386         files[1] = input_files[in_file_index];
2387
2388         for (j = 0; j < 2; j++) {
2389             AVMetaDataMap *map = &meta_data_maps[i][j];
2390
2391             switch (map->type) {
2392             case 'g':
2393                 meta[j] = &files[j]->metadata;
2394                 break;
2395             case 's':
2396                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2397                 meta[j] = &files[j]->streams[map->index]->metadata;
2398                 break;
2399             case 'c':
2400                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2401                 meta[j] = &files[j]->chapters[map->index]->metadata;
2402                 break;
2403             case 'p':
2404                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2405                 meta[j] = &files[j]->programs[map->index]->metadata;
2406                 break;
2407             }
2408         }
2409
2410         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2411     }
2412
2413     /* copy global metadata by default */
2414     if (metadata_global_autocopy) {
2415
2416         for (i = 0; i < nb_output_files; i++)
2417             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2418                              AV_METADATA_DONT_OVERWRITE);
2419     }
2420
2421     /* copy chapters according to chapter maps */
2422     for (i = 0; i < nb_chapter_maps; i++) {
2423         int infile  = chapter_maps[i].in_file;
2424         int outfile = chapter_maps[i].out_file;
2425
2426         if (infile < 0 || outfile < 0)
2427             continue;
2428         if (infile >= nb_input_files) {
2429             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2430             ret = AVERROR(EINVAL);
2431             goto dump_format;
2432         }
2433         if (outfile >= nb_output_files) {
2434             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2435             ret = AVERROR(EINVAL);
2436             goto dump_format;
2437         }
2438         copy_chapters(infile, outfile);
2439     }
2440
2441     /* copy chapters from the first input file that has them*/
2442     if (!nb_chapter_maps)
2443         for (i = 0; i < nb_input_files; i++) {
2444             if (!input_files[i]->nb_chapters)
2445                 continue;
2446
2447             for (j = 0; j < nb_output_files; j++)
2448                 if ((ret = copy_chapters(i, j)) < 0)
2449                     goto dump_format;
2450             break;
2451         }
2452
2453     /* open files and write file headers */
2454     for(i=0;i<nb_output_files;i++) {
2455         os = output_files[i];
2456         if (av_write_header(os) < 0) {
2457             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2458             ret = AVERROR(EINVAL);
2459             goto dump_format;
2460         }
2461         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2462             want_sdp = 0;
2463         }
2464     }
2465
2466  dump_format:
2467     /* dump the file output parameters - cannot be done before in case
2468        of stream copy */
2469     for(i=0;i<nb_output_files;i++) {
2470         dump_format(output_files[i], i, output_files[i]->filename, 1);
2471     }
2472
2473     /* dump the stream mapping */
2474     if (verbose >= 0) {
2475         fprintf(stderr, "Stream mapping:\n");
2476         for(i=0;i<nb_ostreams;i++) {
2477             ost = ost_table[i];
2478             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2479                     ist_table[ost->source_index]->file_index,
2480                     ist_table[ost->source_index]->index,
2481                     ost->file_index,
2482                     ost->index);
2483             if (ost->sync_ist != ist_table[ost->source_index])
2484                 fprintf(stderr, " [sync #%d.%d]",
2485                         ost->sync_ist->file_index,
2486                         ost->sync_ist->index);
2487             fprintf(stderr, "\n");
2488         }
2489     }
2490
2491     if (ret) {
2492         fprintf(stderr, "%s\n", error);
2493         goto fail;
2494     }
2495
2496     if (want_sdp) {
2497         print_sdp(output_files, nb_output_files);
2498     }
2499
2500     if (!using_stdin && verbose >= 0) {
2501         fprintf(stderr, "Press [q] to stop encoding\n");
2502         url_set_interrupt_cb(decode_interrupt_cb);
2503     }
2504     term_init();
2505
2506     timer_start = av_gettime();
2507
2508     for(; received_sigterm == 0;) {
2509         int file_index, ist_index;
2510         AVPacket pkt;
2511         double ipts_min;
2512         double opts_min;
2513
2514     redo:
2515         ipts_min= 1e100;
2516         opts_min= 1e100;
2517         /* if 'q' pressed, exits */
2518         if (!using_stdin) {
2519             if (q_pressed)
2520                 break;
2521             /* read_key() returns 0 on EOF */
2522             key = read_key();
2523             if (key == 'q')
2524                 break;
2525         }
2526
2527         /* select the stream that we must read now by looking at the
2528            smallest output pts */
2529         file_index = -1;
2530         for(i=0;i<nb_ostreams;i++) {
2531             double ipts, opts;
2532             ost = ost_table[i];
2533             os = output_files[ost->file_index];
2534             ist = ist_table[ost->source_index];
2535             if(ist->is_past_recording_time || no_packet[ist->file_index])
2536                 continue;
2537                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2538             ipts = (double)ist->pts;
2539             if (!file_table[ist->file_index].eof_reached){
2540                 if(ipts < ipts_min) {
2541                     ipts_min = ipts;
2542                     if(input_sync ) file_index = ist->file_index;
2543                 }
2544                 if(opts < opts_min) {
2545                     opts_min = opts;
2546                     if(!input_sync) file_index = ist->file_index;
2547                 }
2548             }
2549             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2550                 file_index= -1;
2551                 break;
2552             }
2553         }
2554         /* if none, if is finished */
2555         if (file_index < 0) {
2556             if(no_packet_count){
2557                 no_packet_count=0;
2558                 memset(no_packet, 0, sizeof(no_packet));
2559                 usleep(10000);
2560                 continue;
2561             }
2562             break;
2563         }
2564
2565         /* finish if limit size exhausted */
2566         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2567             break;
2568
2569         /* read a frame from it and output it in the fifo */
2570         is = input_files[file_index];
2571         ret= av_read_frame(is, &pkt);
2572         if(ret == AVERROR(EAGAIN)){
2573             no_packet[file_index]=1;
2574             no_packet_count++;
2575             continue;
2576         }
2577         if (ret < 0) {
2578             file_table[file_index].eof_reached = 1;
2579             if (opt_shortest)
2580                 break;
2581             else
2582                 continue;
2583         }
2584
2585         no_packet_count=0;
2586         memset(no_packet, 0, sizeof(no_packet));
2587
2588         if (do_pkt_dump) {
2589             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2590         }
2591         /* the following test is needed in case new streams appear
2592            dynamically in stream : we ignore them */
2593         if (pkt.stream_index >= file_table[file_index].nb_streams)
2594             goto discard_packet;
2595         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2596         ist = ist_table[ist_index];
2597         if (ist->discard)
2598             goto discard_packet;
2599
2600         if (pkt.dts != AV_NOPTS_VALUE)
2601             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2602         if (pkt.pts != AV_NOPTS_VALUE)
2603             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2604
2605         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2606             && input_files_ts_scale[file_index][pkt.stream_index]){
2607             if(pkt.pts != AV_NOPTS_VALUE)
2608                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2609             if(pkt.dts != AV_NOPTS_VALUE)
2610                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2611         }
2612
2613 //        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);
2614         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2615             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2616             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2617             int64_t delta= pkt_dts - ist->next_pts;
2618             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2619                 input_files_ts_offset[ist->file_index]-= delta;
2620                 if (verbose > 2)
2621                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2622                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2623                 if(pkt.pts != AV_NOPTS_VALUE)
2624                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2625             }
2626         }
2627
2628         /* finish if recording time exhausted */
2629         if (recording_time != INT64_MAX &&
2630             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2631             ist->is_past_recording_time = 1;
2632             goto discard_packet;
2633         }
2634
2635         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2636         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2637
2638             if (verbose >= 0)
2639                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2640                         ist->file_index, ist->index);
2641             if (exit_on_error)
2642                 ffmpeg_exit(1);
2643             av_free_packet(&pkt);
2644             goto redo;
2645         }
2646
2647     discard_packet:
2648         av_free_packet(&pkt);
2649
2650         /* dump report by using the output first video and audio streams */
2651         print_report(output_files, ost_table, nb_ostreams, 0);
2652     }
2653
2654     /* at the end of stream, we must flush the decoder buffers */
2655     for(i=0;i<nb_istreams;i++) {
2656         ist = ist_table[i];
2657         if (ist->decoding_needed) {
2658             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2659         }
2660     }
2661
2662     term_exit();
2663
2664     /* write the trailer if needed and close file */
2665     for(i=0;i<nb_output_files;i++) {
2666         os = output_files[i];
2667         av_write_trailer(os);
2668     }
2669
2670     /* dump report by using the first video and audio streams */
2671     print_report(output_files, ost_table, nb_ostreams, 1);
2672
2673     /* close each encoder */
2674     for(i=0;i<nb_ostreams;i++) {
2675         ost = ost_table[i];
2676         if (ost->encoding_needed) {
2677             av_freep(&ost->st->codec->stats_in);
2678             avcodec_close(ost->st->codec);
2679         }
2680     }
2681
2682     /* close each decoder */
2683     for(i=0;i<nb_istreams;i++) {
2684         ist = ist_table[i];
2685         if (ist->decoding_needed) {
2686             avcodec_close(ist->st->codec);
2687         }
2688     }
2689 #if CONFIG_AVFILTER
2690     avfilter_graph_free(&graph);
2691 #endif
2692
2693     /* finished ! */
2694     ret = 0;
2695
2696  fail:
2697     av_freep(&bit_buffer);
2698     av_free(file_table);
2699
2700     if (ist_table) {
2701         for(i=0;i<nb_istreams;i++) {
2702             ist = ist_table[i];
2703             av_free(ist);
2704         }
2705         av_free(ist_table);
2706     }
2707     if (ost_table) {
2708         for(i=0;i<nb_ostreams;i++) {
2709             ost = ost_table[i];
2710             if (ost) {
2711                 if (ost->st->stream_copy)
2712                     av_freep(&ost->st->codec->extradata);
2713                 if (ost->logfile) {
2714                     fclose(ost->logfile);
2715                     ost->logfile = NULL;
2716                 }
2717                 av_fifo_free(ost->fifo); /* works even if fifo is not
2718                                              initialized but set to zero */
2719                 av_freep(&ost->st->codec->subtitle_header);
2720                 av_free(ost->pict_tmp.data[0]);
2721                 av_free(ost->forced_kf_pts);
2722                 if (ost->video_resample)
2723                     sws_freeContext(ost->img_resample_ctx);
2724                 if (ost->resample)
2725                     audio_resample_close(ost->resample);
2726                 if (ost->reformat_ctx)
2727                     av_audio_convert_free(ost->reformat_ctx);
2728                 av_free(ost);
2729             }
2730         }
2731         av_free(ost_table);
2732     }
2733     return ret;
2734 }
2735
2736 static void opt_format(const char *arg)
2737 {
2738     last_asked_format = arg;
2739 }
2740
2741 static void opt_video_rc_override_string(const char *arg)
2742 {
2743     video_rc_override_string = arg;
2744 }
2745
2746 static int opt_me_threshold(const char *opt, const char *arg)
2747 {
2748     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2749     return 0;
2750 }
2751
2752 static int opt_verbose(const char *opt, const char *arg)
2753 {
2754     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2755     return 0;
2756 }
2757
2758 static int opt_frame_rate(const char *opt, const char *arg)
2759 {
2760     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2761         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2762         ffmpeg_exit(1);
2763     }
2764     return 0;
2765 }
2766
2767 static int opt_bitrate(const char *opt, const char *arg)
2768 {
2769     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2770
2771     opt_default(opt, arg);
2772
2773     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2774         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2775
2776     return 0;
2777 }
2778
2779 static int opt_frame_crop(const char *opt, const char *arg)
2780 {
2781     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2782     return AVERROR(EINVAL);
2783 }
2784
2785 static void opt_frame_size(const char *arg)
2786 {
2787     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2788         fprintf(stderr, "Incorrect frame size\n");
2789         ffmpeg_exit(1);
2790     }
2791 }
2792
2793 static int opt_pad(const char *opt, const char *arg) {
2794     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2795     return -1;
2796 }
2797
2798 static void opt_frame_pix_fmt(const char *arg)
2799 {
2800     if (strcmp(arg, "list")) {
2801         frame_pix_fmt = av_get_pix_fmt(arg);
2802         if (frame_pix_fmt == PIX_FMT_NONE) {
2803             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2804             ffmpeg_exit(1);
2805         }
2806     } else {
2807         show_pix_fmts();
2808         ffmpeg_exit(0);
2809     }
2810 }
2811
2812 static void opt_frame_aspect_ratio(const char *arg)
2813 {
2814     int x = 0, y = 0;
2815     double ar = 0;
2816     const char *p;
2817     char *end;
2818
2819     p = strchr(arg, ':');
2820     if (p) {
2821         x = strtol(arg, &end, 10);
2822         if (end == p)
2823             y = strtol(end+1, &end, 10);
2824         if (x > 0 && y > 0)
2825             ar = (double)x / (double)y;
2826     } else
2827         ar = strtod(arg, NULL);
2828
2829     if (!ar) {
2830         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2831         ffmpeg_exit(1);
2832     }
2833     frame_aspect_ratio = ar;
2834
2835     x = vfilters ? strlen(vfilters) : 0;
2836     vfilters = av_realloc(vfilters, x+100);
2837     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2838 }
2839
2840 static int opt_metadata(const char *opt, const char *arg)
2841 {
2842     char *mid= strchr(arg, '=');
2843
2844     if(!mid){
2845         fprintf(stderr, "Missing =\n");
2846         ffmpeg_exit(1);
2847     }
2848     *mid++= 0;
2849
2850     av_metadata_set2(&metadata, arg, mid, 0);
2851
2852     return 0;
2853 }
2854
2855 static void opt_qscale(const char *arg)
2856 {
2857     video_qscale = atof(arg);
2858     if (video_qscale <= 0 ||
2859         video_qscale > 255) {
2860         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2861         ffmpeg_exit(1);
2862     }
2863 }
2864
2865 static void opt_top_field_first(const char *arg)
2866 {
2867     top_field_first= atoi(arg);
2868 }
2869
2870 static int opt_thread_count(const char *opt, const char *arg)
2871 {
2872     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2873 #if !HAVE_THREADS
2874     if (verbose >= 0)
2875         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2876 #endif
2877     return 0;
2878 }
2879
2880 static void opt_audio_sample_fmt(const char *arg)
2881 {
2882     if (strcmp(arg, "list")) {
2883         audio_sample_fmt = av_get_sample_fmt(arg);
2884         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2885             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2886             ffmpeg_exit(1);
2887         }
2888     } else {
2889         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2890         ffmpeg_exit(0);
2891     }
2892 }
2893
2894 static int opt_audio_rate(const char *opt, const char *arg)
2895 {
2896     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2897     return 0;
2898 }
2899
2900 static int opt_audio_channels(const char *opt, const char *arg)
2901 {
2902     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2903     return 0;
2904 }
2905
2906 static void opt_video_channel(const char *arg)
2907 {
2908     video_channel = strtol(arg, NULL, 0);
2909 }
2910
2911 static void opt_video_standard(const char *arg)
2912 {
2913     video_standard = av_strdup(arg);
2914 }
2915
2916 static void opt_codec(int *pstream_copy, char **pcodec_name,
2917                       int codec_type, const char *arg)
2918 {
2919     av_freep(pcodec_name);
2920     if (!strcmp(arg, "copy")) {
2921         *pstream_copy = 1;
2922     } else {
2923         *pcodec_name = av_strdup(arg);
2924     }
2925 }
2926
2927 static void opt_audio_codec(const char *arg)
2928 {
2929     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2930 }
2931
2932 static void opt_video_codec(const char *arg)
2933 {
2934     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2935 }
2936
2937 static void opt_subtitle_codec(const char *arg)
2938 {
2939     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2940 }
2941
2942 static int opt_codec_tag(const char *opt, const char *arg)
2943 {
2944     char *tail;
2945     uint32_t *codec_tag;
2946
2947     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2948                 !strcmp(opt, "vtag") ? &video_codec_tag :
2949                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2950     if (!codec_tag)
2951         return -1;
2952
2953     *codec_tag = strtol(arg, &tail, 0);
2954     if (!tail || *tail)
2955         *codec_tag = AV_RL32(arg);
2956
2957     return 0;
2958 }
2959
2960 static void opt_map(const char *arg)
2961 {
2962     AVStreamMap *m;
2963     char *p;
2964
2965     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2966     m = &stream_maps[nb_stream_maps-1];
2967
2968     m->file_index = strtol(arg, &p, 0);
2969     if (*p)
2970         p++;
2971
2972     m->stream_index = strtol(p, &p, 0);
2973     if (*p) {
2974         p++;
2975         m->sync_file_index = strtol(p, &p, 0);
2976         if (*p)
2977             p++;
2978         m->sync_stream_index = strtol(p, &p, 0);
2979     } else {
2980         m->sync_file_index = m->file_index;
2981         m->sync_stream_index = m->stream_index;
2982     }
2983 }
2984
2985 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2986 {
2987     *endptr = arg;
2988     if (*arg == ',') {
2989         *type = *(++arg);
2990         switch (*arg) {
2991         case 'g':
2992             break;
2993         case 's':
2994         case 'c':
2995         case 'p':
2996             *index = strtol(++arg, endptr, 0);
2997             break;
2998         default:
2999             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3000             ffmpeg_exit(1);
3001         }
3002     } else
3003         *type = 'g';
3004 }
3005
3006 static void opt_map_metadata(const char *arg)
3007 {
3008     AVMetaDataMap *m, *m1;
3009     char *p;
3010
3011     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3012                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3013
3014     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3015     m->file = strtol(arg, &p, 0);
3016     parse_meta_type(p, &m->type, &m->index, &p);
3017     if (*p)
3018         p++;
3019
3020     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3021     m1->file = strtol(p, &p, 0);
3022     parse_meta_type(p, &m1->type, &m1->index, &p);
3023
3024     if (m->type == 'g' || m1->type == 'g')
3025         metadata_global_autocopy = 0;
3026     if (m->type == 's' || m1->type == 's')
3027         metadata_streams_autocopy = 0;
3028     if (m->type == 'c' || m1->type == 'c')
3029         metadata_chapters_autocopy = 0;
3030 }
3031
3032 static void opt_map_meta_data(const char *arg)
3033 {
3034     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3035                     "Use -map_metadata instead.\n");
3036     opt_map_metadata(arg);
3037 }
3038
3039 static void opt_map_chapters(const char *arg)
3040 {
3041     AVChapterMap *c;
3042     char *p;
3043
3044     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3045                               nb_chapter_maps + 1);
3046     c = &chapter_maps[nb_chapter_maps - 1];
3047     c->out_file = strtol(arg, &p, 0);
3048     if (*p)
3049         p++;
3050
3051     c->in_file = strtol(p, &p, 0);
3052 }
3053
3054 static void opt_input_ts_scale(const char *arg)
3055 {
3056     unsigned int stream;
3057     double scale;
3058     char *p;
3059
3060     stream = strtol(arg, &p, 0);
3061     if (*p)
3062         p++;
3063     scale= strtod(p, &p);
3064
3065     if(stream >= MAX_STREAMS)
3066         ffmpeg_exit(1);
3067
3068     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);
3069     input_files_ts_scale[nb_input_files][stream]= scale;
3070 }
3071
3072 static int opt_recording_time(const char *opt, const char *arg)
3073 {
3074     recording_time = parse_time_or_die(opt, arg, 1);
3075     return 0;
3076 }
3077
3078 static int opt_start_time(const char *opt, const char *arg)
3079 {
3080     start_time = parse_time_or_die(opt, arg, 1);
3081     return 0;
3082 }
3083
3084 static int opt_recording_timestamp(const char *opt, const char *arg)
3085 {
3086     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3087     return 0;
3088 }
3089
3090 static int opt_input_ts_offset(const char *opt, const char *arg)
3091 {
3092     input_ts_offset = parse_time_or_die(opt, arg, 1);
3093     return 0;
3094 }
3095
3096 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3097 {
3098     const char *codec_string = encoder ? "encoder" : "decoder";
3099     AVCodec *codec;
3100
3101     if(!name)
3102         return CODEC_ID_NONE;
3103     codec = encoder ?
3104         avcodec_find_encoder_by_name(name) :
3105         avcodec_find_decoder_by_name(name);
3106     if(!codec) {
3107         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3108         ffmpeg_exit(1);
3109     }
3110     if(codec->type != type) {
3111         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3112         ffmpeg_exit(1);
3113     }
3114     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3115        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3116         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3117                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3118                 codec_string, codec->name);
3119         codec = encoder ?
3120             avcodec_find_encoder(codec->id) :
3121             avcodec_find_decoder(codec->id);
3122         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3123             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3124                     codec_string, codec->name);
3125         ffmpeg_exit(1);
3126     }
3127     return codec->id;
3128 }
3129
3130 static void opt_input_file(const char *filename)
3131 {
3132     AVFormatContext *ic;
3133     AVFormatParameters params, *ap = &params;
3134     AVInputFormat *file_iformat = NULL;
3135     int err, i, ret, rfps, rfps_base;
3136     int64_t timestamp;
3137
3138     if (last_asked_format) {
3139         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3140             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3141             ffmpeg_exit(1);
3142         }
3143         last_asked_format = NULL;
3144     }
3145
3146     if (!strcmp(filename, "-"))
3147         filename = "pipe:";
3148
3149     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3150                     !strcmp(filename, "/dev/stdin");
3151
3152     /* get default parameters from command line */
3153     ic = avformat_alloc_context();
3154     if (!ic) {
3155         print_error(filename, AVERROR(ENOMEM));
3156         ffmpeg_exit(1);
3157     }
3158
3159     memset(ap, 0, sizeof(*ap));
3160     ap->prealloced_context = 1;
3161     ap->sample_rate = audio_sample_rate;
3162     ap->channels = audio_channels;
3163     ap->time_base.den = frame_rate.num;
3164     ap->time_base.num = frame_rate.den;
3165     ap->width = frame_width;
3166     ap->height = frame_height;
3167     ap->pix_fmt = frame_pix_fmt;
3168    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3169     ap->channel = video_channel;
3170     ap->standard = video_standard;
3171
3172     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3173
3174     ic->video_codec_id   =
3175         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3176                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3177     ic->audio_codec_id   =
3178         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3179                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3180     ic->subtitle_codec_id=
3181         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3182                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3183     ic->flags |= AVFMT_FLAG_NONBLOCK;
3184
3185     /* open the input file with generic libav function */
3186     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3187     if (err < 0) {
3188         print_error(filename, err);
3189         ffmpeg_exit(1);
3190     }
3191     if(opt_programid) {
3192         int i, j;
3193         int found=0;
3194         for(i=0; i<ic->nb_streams; i++){
3195             ic->streams[i]->discard= AVDISCARD_ALL;
3196         }
3197         for(i=0; i<ic->nb_programs; i++){
3198             AVProgram *p= ic->programs[i];
3199             if(p->id != opt_programid){
3200                 p->discard = AVDISCARD_ALL;
3201             }else{
3202                 found=1;
3203                 for(j=0; j<p->nb_stream_indexes; j++){
3204                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3205                 }
3206             }
3207         }
3208         if(!found){
3209             fprintf(stderr, "Specified program id not found\n");
3210             ffmpeg_exit(1);
3211         }
3212         opt_programid=0;
3213     }
3214
3215     ic->loop_input = loop_input;
3216
3217     /* If not enough info to get the stream parameters, we decode the
3218        first frames to get it. (used in mpeg case for example) */
3219     ret = av_find_stream_info(ic);
3220     if (ret < 0 && verbose >= 0) {
3221         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3222         av_close_input_file(ic);
3223         ffmpeg_exit(1);
3224     }
3225
3226     timestamp = start_time;
3227     /* add the stream start time */
3228     if (ic->start_time != AV_NOPTS_VALUE)
3229         timestamp += ic->start_time;
3230
3231     /* if seeking requested, we execute it */
3232     if (start_time != 0) {
3233         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3234         if (ret < 0) {
3235             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3236                     filename, (double)timestamp / AV_TIME_BASE);
3237         }
3238         /* reset seek info */
3239         start_time = 0;
3240     }
3241
3242     /* update the current parameters so that they match the one of the input stream */
3243     for(i=0;i<ic->nb_streams;i++) {
3244         AVStream *st = ic->streams[i];
3245         AVCodecContext *dec = st->codec;
3246         dec->thread_count = thread_count;
3247         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3248         switch (dec->codec_type) {
3249         case AVMEDIA_TYPE_AUDIO:
3250             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3251             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]);
3252             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3253             channel_layout    = dec->channel_layout;
3254             audio_channels    = dec->channels;
3255             audio_sample_rate = dec->sample_rate;
3256             audio_sample_fmt  = dec->sample_fmt;
3257             if(audio_disable)
3258                 st->discard= AVDISCARD_ALL;
3259             /* Note that av_find_stream_info can add more streams, and we
3260              * currently have no chance of setting up lowres decoding
3261              * early enough for them. */
3262             if (dec->lowres)
3263                 audio_sample_rate >>= dec->lowres;
3264             break;
3265         case AVMEDIA_TYPE_VIDEO:
3266             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3267             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]);
3268             frame_height = dec->height;
3269             frame_width  = dec->width;
3270             if(ic->streams[i]->sample_aspect_ratio.num)
3271                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3272             else
3273                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3274             frame_aspect_ratio *= (float) dec->width / dec->height;
3275             frame_pix_fmt = dec->pix_fmt;
3276             rfps      = ic->streams[i]->r_frame_rate.num;
3277             rfps_base = ic->streams[i]->r_frame_rate.den;
3278             if (dec->lowres) {
3279                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3280                 frame_height >>= dec->lowres;
3281                 frame_width  >>= dec->lowres;
3282                 dec->height = frame_height;
3283                 dec->width  = frame_width;
3284             }
3285             if(me_threshold)
3286                 dec->debug |= FF_DEBUG_MV;
3287
3288             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3289
3290                 if (verbose >= 0)
3291                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3292                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3293
3294                     (float)rfps / rfps_base, rfps, rfps_base);
3295             }
3296             /* update the current frame rate to match the stream frame rate */
3297             frame_rate.num = rfps;
3298             frame_rate.den = rfps_base;
3299
3300             if(video_disable)
3301                 st->discard= AVDISCARD_ALL;
3302             else if(video_discard)
3303                 st->discard= video_discard;
3304             break;
3305         case AVMEDIA_TYPE_DATA:
3306             break;
3307         case AVMEDIA_TYPE_SUBTITLE:
3308             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3309             if(subtitle_disable)
3310                 st->discard = AVDISCARD_ALL;
3311             break;
3312         case AVMEDIA_TYPE_ATTACHMENT:
3313         case AVMEDIA_TYPE_UNKNOWN:
3314             break;
3315         default:
3316             abort();
3317         }
3318     }
3319
3320     input_files[nb_input_files] = ic;
3321     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3322     /* dump the file content */
3323     if (verbose >= 0)
3324         dump_format(ic, nb_input_files, filename, 0);
3325
3326     nb_input_files++;
3327
3328     video_channel = 0;
3329
3330     av_freep(&video_codec_name);
3331     av_freep(&audio_codec_name);
3332     av_freep(&subtitle_codec_name);
3333 }
3334
3335 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3336                                          int *has_subtitle_ptr)
3337 {
3338     int has_video, has_audio, has_subtitle, i, j;
3339     AVFormatContext *ic;
3340
3341     has_video = 0;
3342     has_audio = 0;
3343     has_subtitle = 0;
3344     for(j=0;j<nb_input_files;j++) {
3345         ic = input_files[j];
3346         for(i=0;i<ic->nb_streams;i++) {
3347             AVCodecContext *enc = ic->streams[i]->codec;
3348             switch(enc->codec_type) {
3349             case AVMEDIA_TYPE_AUDIO:
3350                 has_audio = 1;
3351                 break;
3352             case AVMEDIA_TYPE_VIDEO:
3353                 has_video = 1;
3354                 break;
3355             case AVMEDIA_TYPE_SUBTITLE:
3356                 has_subtitle = 1;
3357                 break;
3358             case AVMEDIA_TYPE_DATA:
3359             case AVMEDIA_TYPE_ATTACHMENT:
3360             case AVMEDIA_TYPE_UNKNOWN:
3361                 break;
3362             default:
3363                 abort();
3364             }
3365         }
3366     }
3367     *has_video_ptr = has_video;
3368     *has_audio_ptr = has_audio;
3369     *has_subtitle_ptr = has_subtitle;
3370 }
3371
3372 static void new_video_stream(AVFormatContext *oc, int file_idx)
3373 {
3374     AVStream *st;
3375     AVOutputStream *ost;
3376     AVCodecContext *video_enc;
3377     enum CodecID codec_id = CODEC_ID_NONE;
3378     AVCodec *codec= NULL;
3379
3380     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3381     if (!st) {
3382         fprintf(stderr, "Could not alloc stream\n");
3383         ffmpeg_exit(1);
3384     }
3385     ost = new_output_stream(oc, file_idx);
3386
3387     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3388     if(!video_stream_copy){
3389         if (video_codec_name) {
3390             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3391                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3392             codec = avcodec_find_encoder_by_name(video_codec_name);
3393             output_codecs[nb_output_codecs-1] = codec;
3394         } else {
3395             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3396             codec = avcodec_find_encoder(codec_id);
3397         }
3398     }
3399
3400     avcodec_get_context_defaults3(st->codec, codec);
3401     ost->bitstream_filters = video_bitstream_filters;
3402     video_bitstream_filters= NULL;
3403
3404     st->codec->thread_count= thread_count;
3405
3406     video_enc = st->codec;
3407
3408     if(video_codec_tag)
3409         video_enc->codec_tag= video_codec_tag;
3410
3411     if(   (video_global_header&1)
3412        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3413         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3414         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3415     }
3416     if(video_global_header&2){
3417         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3418         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3419     }
3420
3421     if (video_stream_copy) {
3422         st->stream_copy = 1;
3423         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3424         video_enc->sample_aspect_ratio =
3425         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3426     } else {
3427         const char *p;
3428         int i;
3429         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3430
3431         video_enc->codec_id = codec_id;
3432         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3433
3434         if (codec && codec->supported_framerates && !force_fps)
3435             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3436         video_enc->time_base.den = fps.num;
3437         video_enc->time_base.num = fps.den;
3438
3439         video_enc->width = frame_width;
3440         video_enc->height = frame_height;
3441         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3442         video_enc->pix_fmt = frame_pix_fmt;
3443         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3444
3445         choose_pixel_fmt(st, codec);
3446
3447         if (intra_only)
3448             video_enc->gop_size = 0;
3449         if (video_qscale || same_quality) {
3450             video_enc->flags |= CODEC_FLAG_QSCALE;
3451             video_enc->global_quality=
3452                 st->quality = FF_QP2LAMBDA * video_qscale;
3453         }
3454
3455         if(intra_matrix)
3456             video_enc->intra_matrix = intra_matrix;
3457         if(inter_matrix)
3458             video_enc->inter_matrix = inter_matrix;
3459
3460         p= video_rc_override_string;
3461         for(i=0; p; i++){
3462             int start, end, q;
3463             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3464             if(e!=3){
3465                 fprintf(stderr, "error parsing rc_override\n");
3466                 ffmpeg_exit(1);
3467             }
3468             video_enc->rc_override=
3469                 av_realloc(video_enc->rc_override,
3470                            sizeof(RcOverride)*(i+1));
3471             video_enc->rc_override[i].start_frame= start;
3472             video_enc->rc_override[i].end_frame  = end;
3473             if(q>0){
3474                 video_enc->rc_override[i].qscale= q;
3475                 video_enc->rc_override[i].quality_factor= 1.0;
3476             }
3477             else{
3478                 video_enc->rc_override[i].qscale= 0;
3479                 video_enc->rc_override[i].quality_factor= -q/100.0;
3480             }
3481             p= strchr(p, '/');
3482             if(p) p++;
3483         }
3484         video_enc->rc_override_count=i;
3485         if (!video_enc->rc_initial_buffer_occupancy)
3486             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3487         video_enc->me_threshold= me_threshold;
3488         video_enc->intra_dc_precision= intra_dc_precision - 8;
3489
3490         if (do_psnr)
3491             video_enc->flags|= CODEC_FLAG_PSNR;
3492
3493         /* two pass mode */
3494         if (do_pass) {
3495             if (do_pass == 1) {
3496                 video_enc->flags |= CODEC_FLAG_PASS1;
3497             } else {
3498                 video_enc->flags |= CODEC_FLAG_PASS2;
3499             }
3500         }
3501
3502         if (forced_key_frames)
3503             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3504     }
3505     if (video_language) {
3506         av_metadata_set2(&st->metadata, "language", video_language, 0);
3507         av_freep(&video_language);
3508     }
3509
3510     /* reset some key parameters */
3511     video_disable = 0;
3512     av_freep(&video_codec_name);
3513     av_freep(&forced_key_frames);
3514     video_stream_copy = 0;
3515     frame_pix_fmt = PIX_FMT_NONE;
3516 }
3517
3518 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3519 {
3520     AVStream *st;
3521     AVOutputStream *ost;
3522     AVCodec *codec= NULL;
3523     AVCodecContext *audio_enc;
3524     enum CodecID codec_id = CODEC_ID_NONE;
3525
3526     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3527     if (!st) {
3528         fprintf(stderr, "Could not alloc stream\n");
3529         ffmpeg_exit(1);
3530     }
3531     ost = new_output_stream(oc, file_idx);
3532
3533     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3534     if(!audio_stream_copy){
3535         if (audio_codec_name) {
3536             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3537                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3538             codec = avcodec_find_encoder_by_name(audio_codec_name);
3539             output_codecs[nb_output_codecs-1] = codec;
3540         } else {
3541             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3542             codec = avcodec_find_encoder(codec_id);
3543         }
3544     }
3545
3546     avcodec_get_context_defaults3(st->codec, codec);
3547
3548     ost->bitstream_filters = audio_bitstream_filters;
3549     audio_bitstream_filters= NULL;
3550
3551     st->codec->thread_count= thread_count;
3552
3553     audio_enc = st->codec;
3554     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3555
3556     if(audio_codec_tag)
3557         audio_enc->codec_tag= audio_codec_tag;
3558
3559     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3560         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3561         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3562     }
3563     if (audio_stream_copy) {
3564         st->stream_copy = 1;
3565         audio_enc->channels = audio_channels;
3566         audio_enc->sample_rate = audio_sample_rate;
3567     } else {
3568         audio_enc->codec_id = codec_id;
3569         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3570
3571         if (audio_qscale > QSCALE_NONE) {
3572             audio_enc->flags |= CODEC_FLAG_QSCALE;
3573             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3574         }
3575         audio_enc->channels = audio_channels;
3576         audio_enc->sample_fmt = audio_sample_fmt;
3577         audio_enc->sample_rate = audio_sample_rate;
3578         audio_enc->channel_layout = channel_layout;
3579         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3580             audio_enc->channel_layout = 0;
3581         choose_sample_fmt(st, codec);
3582         choose_sample_rate(st, codec);
3583     }
3584     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3585     if (audio_language) {
3586         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3587         av_freep(&audio_language);
3588     }
3589
3590     /* reset some key parameters */
3591     audio_disable = 0;
3592     av_freep(&audio_codec_name);
3593     audio_stream_copy = 0;
3594 }
3595
3596 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3597 {
3598     AVStream *st;
3599     AVOutputStream *ost;
3600     AVCodec *codec=NULL;
3601     AVCodecContext *subtitle_enc;
3602     enum CodecID codec_id = CODEC_ID_NONE;
3603
3604     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3605     if (!st) {
3606         fprintf(stderr, "Could not alloc stream\n");
3607         ffmpeg_exit(1);
3608     }
3609     ost = new_output_stream(oc, file_idx);
3610     subtitle_enc = st->codec;
3611     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3612     if(!subtitle_stream_copy){
3613         if (subtitle_codec_name) {
3614             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3615                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3616             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3617         } else {
3618             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3619             codec = avcodec_find_encoder(codec_id);
3620         }
3621     }
3622     avcodec_get_context_defaults3(st->codec, codec);
3623
3624     ost->bitstream_filters = subtitle_bitstream_filters;
3625     subtitle_bitstream_filters= NULL;
3626
3627     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3628
3629     if(subtitle_codec_tag)
3630         subtitle_enc->codec_tag= subtitle_codec_tag;
3631
3632     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3633         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3634         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3635     }
3636     if (subtitle_stream_copy) {
3637         st->stream_copy = 1;
3638     } else {
3639         subtitle_enc->codec_id = codec_id;
3640         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3641     }
3642
3643     if (subtitle_language) {
3644         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3645         av_freep(&subtitle_language);
3646     }
3647
3648     subtitle_disable = 0;
3649     av_freep(&subtitle_codec_name);
3650     subtitle_stream_copy = 0;
3651 }
3652
3653 static int opt_new_stream(const char *opt, const char *arg)
3654 {
3655     AVFormatContext *oc;
3656     int file_idx = nb_output_files - 1;
3657     if (nb_output_files <= 0) {
3658         fprintf(stderr, "At least one output file must be specified\n");
3659         ffmpeg_exit(1);
3660     }
3661     oc = output_files[file_idx];
3662
3663     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3664     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3665     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3666     else av_assert0(0);
3667     return 0;
3668 }
3669
3670 /* arg format is "output-stream-index:streamid-value". */
3671 static int opt_streamid(const char *opt, const char *arg)
3672 {
3673     int idx;
3674     char *p;
3675    &nb