avconv: make itsscale syntax consistent with other options.
[ffmpeg.git] / avconv.c
1 /*
2  * avconv main
3  * Copyright (c) 2000-2011 The libav developers.
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int disabled;           /** 1 is this mapping is disabled by a negative map */
83     int file_index;
84     int stream_index;
85     int sync_file_index;
86     int sync_stream_index;
87 } StreamMap;
88
89 /**
90  * select an input file for an output file
91  */
92 typedef struct MetadataMap {
93     int  file;      //< file index
94     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95     int  index;     //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static AVDictionary *ts_scale;
104
105 static AVFormatContext *output_files[MAX_FILES];
106 static AVDictionary *output_opts[MAX_FILES];
107 static int nb_output_files = 0;
108
109 static StreamMap *stream_maps = NULL;
110 static int nb_stream_maps;
111
112 static AVDictionary *codec_names;
113
114 /* first item specifies output metadata, second is input */
115 static MetadataMap (*meta_data_maps)[2] = NULL;
116 static int nb_meta_data_maps;
117 static int metadata_global_autocopy   = 1;
118 static int metadata_streams_autocopy  = 1;
119 static int metadata_chapters_autocopy = 1;
120
121 static int chapters_input_file = INT_MAX;
122
123 /* indexed by output file stream index */
124 static int *streamid_map = NULL;
125 static int nb_streamid_map = 0;
126
127 static int frame_width  = 0;
128 static int frame_height = 0;
129 static float frame_aspect_ratio = 0;
130 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
131 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
132 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
133 static AVRational frame_rate;
134 static float video_qscale = 0;
135 static uint16_t *intra_matrix = NULL;
136 static uint16_t *inter_matrix = NULL;
137 static const char *video_rc_override_string=NULL;
138 static int video_disable = 0;
139 static int video_discard = 0;
140 static unsigned int video_codec_tag = 0;
141 static char *video_language = NULL;
142 static int same_quant = 0;
143 static int do_deinterlace = 0;
144 static int top_field_first = -1;
145 static int me_threshold = 0;
146 static int intra_dc_precision = 8;
147 static int qp_hist = 0;
148 #if CONFIG_AVFILTER
149 static char *vfilters = NULL;
150 #endif
151
152 static int intra_only = 0;
153 static int audio_sample_rate = 0;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 0;
158 static unsigned int audio_codec_tag = 0;
159 static char *audio_language = NULL;
160
161 static int subtitle_disable = 0;
162 static char *subtitle_language = NULL;
163 static unsigned int subtitle_codec_tag = 0;
164
165 static int data_disable = 0;
166 static unsigned int data_codec_tag = 0;
167
168 static float mux_preload= 0.5;
169 static float mux_max_delay= 0.7;
170
171 static int64_t recording_time = INT64_MAX;
172 static int64_t start_time = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static AVDictionary *metadata;
176 static int do_benchmark = 0;
177 static int do_hex_dump = 0;
178 static int do_pkt_dump = 0;
179 static int do_psnr = 0;
180 static int do_pass = 0;
181 static char *pass_logfilename_prefix = NULL;
182 static int video_sync_method= -1;
183 static int audio_sync_method= 0;
184 static float audio_drift_threshold= 0.1;
185 static int copy_ts= 0;
186 static int copy_tb;
187 static int opt_shortest = 0;
188 static char *vstats_filename;
189 static FILE *vstats_file;
190 static int opt_programid = 0;
191 static int copy_initial_nonkeyframes = 0;
192
193 static int rate_emu = 0;
194
195 static int audio_volume = 256;
196
197 static int exit_on_error = 0;
198 static int using_stdin = 0;
199 static int verbose = 1;
200 static int thread_count= 1;
201 static int64_t video_size = 0;
202 static int64_t audio_size = 0;
203 static int64_t extra_size = 0;
204 static int nb_frames_dup = 0;
205 static int nb_frames_drop = 0;
206 static int input_sync;
207 static uint64_t limit_filesize = 0;
208 static int force_fps = 0;
209 static char *forced_key_frames = NULL;
210
211 static float dts_delta_threshold = 10;
212
213 static int64_t timer_start;
214
215 static uint8_t *audio_buf;
216 static uint8_t *audio_out;
217 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
218
219 static short *samples;
220
221 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
222 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
224
225 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
226
227 struct InputStream;
228
229 typedef struct OutputStream {
230     int file_index;          /* file index */
231     int index;               /* stream index in the output file */
232     int source_index;        /* InputStream index */
233     AVStream *st;            /* stream in the output file */
234     int encoding_needed;     /* true if encoding needed for this stream */
235     int frame_number;
236     /* input pts and corresponding output pts
237        for A/V sync */
238     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
239     struct InputStream *sync_ist; /* input stream to sync against */
240     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
241     AVBitStreamFilterContext *bitstream_filters;
242     AVCodec *enc;
243
244     /* video only */
245     int video_resample;
246     AVFrame pict_tmp;      /* temporary image for resampling */
247     struct SwsContext *img_resample_ctx; /* for image resampling */
248     int resample_height;
249     int resample_width;
250     int resample_pix_fmt;
251     AVRational frame_rate;
252
253     float frame_aspect_ratio;
254
255     /* forced key frames */
256     int64_t *forced_kf_pts;
257     int forced_kf_count;
258     int forced_kf_index;
259
260     /* audio only */
261     int audio_resample;
262     ReSampleContext *resample; /* for audio resampling */
263     int resample_sample_fmt;
264     int resample_channels;
265     int resample_sample_rate;
266     int reformat_pair;
267     AVAudioConvert *reformat_ctx;
268     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
269     FILE *logfile;
270
271 #if CONFIG_AVFILTER
272     AVFilterContext *output_video_filter;
273     AVFilterContext *input_video_filter;
274     AVFilterBufferRef *picref;
275     char *avfilter;
276     AVFilterGraph *graph;
277 #endif
278
279    int sws_flags;
280    AVDictionary *opts;
281 } OutputStream;
282
283 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
284 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
285
286 typedef struct InputStream {
287     int file_index;
288     AVStream *st;
289     int discard;             /* true if stream data should be discarded */
290     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
291     AVCodec *dec;
292
293     int64_t       start;     /* time when read started */
294     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
295                                 is not defined */
296     int64_t       pts;       /* current pts */
297     PtsCorrectionContext pts_ctx;
298     double ts_scale;
299     int is_start;            /* is 1 at the start and after a discontinuity */
300     int showed_multi_packet_warning;
301     int is_past_recording_time;
302     AVDictionary *opts;
303 } InputStream;
304
305 typedef struct InputFile {
306     AVFormatContext *ctx;
307     int eof_reached;      /* true if eof reached */
308     int ist_index;        /* index of first stream in ist_table */
309     int buffer_size;      /* current total buffer size */
310     int64_t ts_offset;
311 } InputFile;
312
313 static InputStream *input_streams = NULL;
314 static int         nb_input_streams = 0;
315 static InputFile   *input_files   = NULL;
316 static int         nb_input_files   = 0;
317
318 #if CONFIG_AVFILTER
319
320 static int configure_video_filters(InputStream *ist, OutputStream *ost)
321 {
322     AVFilterContext *last_filter, *filter;
323     /** filter graph containing all filters including input & output */
324     AVCodecContext *codec = ost->st->codec;
325     AVCodecContext *icodec = ist->st->codec;
326     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
327     AVRational sample_aspect_ratio;
328     char args[255];
329     int ret;
330
331     ost->graph = avfilter_graph_alloc();
332
333     if (ist->st->sample_aspect_ratio.num){
334         sample_aspect_ratio = ist->st->sample_aspect_ratio;
335     }else
336         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
337
338     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
339              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
340              sample_aspect_ratio.num, sample_aspect_ratio.den);
341
342     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
343                                        "src", args, NULL, ost->graph);
344     if (ret < 0)
345         return ret;
346     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
347                                        "out", NULL, &ffsink_ctx, ost->graph);
348     if (ret < 0)
349         return ret;
350     last_filter = ost->input_video_filter;
351
352     if (codec->width  != icodec->width || codec->height != icodec->height) {
353         snprintf(args, 255, "%d:%d:flags=0x%X",
354                  codec->width,
355                  codec->height,
356                  ost->sws_flags);
357         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
358                                                 NULL, args, NULL, ost->graph)) < 0)
359             return ret;
360         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
361             return ret;
362         last_filter = filter;
363     }
364
365     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
366     ost->graph->scale_sws_opts = av_strdup(args);
367
368     if (ost->avfilter) {
369         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
370         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
371
372         outputs->name    = av_strdup("in");
373         outputs->filter_ctx = last_filter;
374         outputs->pad_idx = 0;
375         outputs->next    = NULL;
376
377         inputs->name    = av_strdup("out");
378         inputs->filter_ctx = ost->output_video_filter;
379         inputs->pad_idx = 0;
380         inputs->next    = NULL;
381
382         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
383             return ret;
384         av_freep(&ost->avfilter);
385     } else {
386         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
387             return ret;
388     }
389
390     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
391         return ret;
392
393     codec->width  = ost->output_video_filter->inputs[0]->w;
394     codec->height = ost->output_video_filter->inputs[0]->h;
395     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
396         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
397         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
398         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
399
400     return 0;
401 }
402 #endif /* CONFIG_AVFILTER */
403
404 static void term_exit(void)
405 {
406     av_log(NULL, AV_LOG_QUIET, "");
407 }
408
409 static volatile int received_sigterm = 0;
410 static volatile int received_nb_signals = 0;
411
412 static void
413 sigterm_handler(int sig)
414 {
415     received_sigterm = sig;
416     received_nb_signals++;
417     term_exit();
418 }
419
420 static void term_init(void)
421 {
422     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
423     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
424 #ifdef SIGXCPU
425     signal(SIGXCPU, sigterm_handler);
426 #endif
427 }
428
429 static int decode_interrupt_cb(void)
430 {
431     return received_nb_signals > 1;
432 }
433
434 static int exit_program(int ret)
435 {
436     int i;
437
438     /* close files */
439     for(i=0;i<nb_output_files;i++) {
440         AVFormatContext *s = output_files[i];
441         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
442             avio_close(s->pb);
443         avformat_free_context(s);
444         av_free(output_streams_for_file[i]);
445         av_dict_free(&output_opts[i]);
446     }
447     for(i=0;i<nb_input_files;i++) {
448         av_close_input_file(input_files[i].ctx);
449     }
450     for (i = 0; i < nb_input_streams; i++)
451         av_dict_free(&input_streams[i].opts);
452
453     av_free(intra_matrix);
454     av_free(inter_matrix);
455
456     if (vstats_file)
457         fclose(vstats_file);
458     av_free(vstats_filename);
459
460     av_free(streamid_map);
461     av_free(meta_data_maps);
462
463     av_freep(&input_streams);
464     av_freep(&input_files);
465
466     uninit_opts();
467     av_free(audio_buf);
468     av_free(audio_out);
469     allocated_audio_buf_size= allocated_audio_out_size= 0;
470     av_free(samples);
471
472 #if CONFIG_AVFILTER
473     avfilter_uninit();
474 #endif
475
476     if (received_sigterm) {
477         fprintf(stderr,
478             "Received signal %d: terminating.\n",
479             (int) received_sigterm);
480         exit (255);
481     }
482
483     exit(ret); /* not all OS-es handle main() return value */
484     return ret;
485 }
486
487 static void assert_avoptions(AVDictionary *m)
488 {
489     AVDictionaryEntry *t;
490     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
491         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
492         exit_program(1);
493     }
494 }
495
496 static void assert_codec_experimental(AVCodecContext *c, int encoder)
497 {
498     const char *codec_string = encoder ? "encoder" : "decoder";
499     AVCodec *codec;
500     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
501         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
502         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
503                 "results.\nAdd '-strict experimental' if you want to use it.\n",
504                 codec_string, c->codec->name);
505         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
506         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
507             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
508                    codec_string, codec->name);
509         exit_program(1);
510     }
511 }
512
513 /* similar to ff_dynarray_add() and av_fast_realloc() */
514 static void *grow_array(void *array, int elem_size, int *size, int new_size)
515 {
516     if (new_size >= INT_MAX / elem_size) {
517         fprintf(stderr, "Array too big.\n");
518         exit_program(1);
519     }
520     if (*size < new_size) {
521         uint8_t *tmp = av_realloc(array, new_size*elem_size);
522         if (!tmp) {
523             fprintf(stderr, "Could not alloc buffer.\n");
524             exit_program(1);
525         }
526         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
527         *size = new_size;
528         return tmp;
529     }
530     return array;
531 }
532
533 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
534 {
535     if(codec && codec->sample_fmts){
536         const enum AVSampleFormat *p= codec->sample_fmts;
537         for(; *p!=-1; p++){
538             if(*p == st->codec->sample_fmt)
539                 break;
540         }
541         if (*p == -1) {
542             av_log(NULL, AV_LOG_WARNING,
543                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
544                    av_get_sample_fmt_name(st->codec->sample_fmt),
545                    codec->name,
546                    av_get_sample_fmt_name(codec->sample_fmts[0]));
547             st->codec->sample_fmt = codec->sample_fmts[0];
548         }
549     }
550 }
551
552 /**
553  * Update the requested input sample format based on the output sample format.
554  * This is currently only used to request float output from decoders which
555  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
556  * Ideally this will be removed in the future when decoders do not do format
557  * conversion and only output in their native format.
558  */
559 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
560                               AVCodecContext *enc)
561 {
562     /* if sample formats match or a decoder sample format has already been
563        requested, just return */
564     if (enc->sample_fmt == dec->sample_fmt ||
565         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
566         return;
567
568     /* if decoder supports more than one output format */
569     if (dec_codec && dec_codec->sample_fmts &&
570         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
571         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
572         const enum AVSampleFormat *p;
573         int min_dec = -1, min_inc = -1;
574
575         /* find a matching sample format in the encoder */
576         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
577             if (*p == enc->sample_fmt) {
578                 dec->request_sample_fmt = *p;
579                 return;
580             } else if (*p > enc->sample_fmt) {
581                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
582             } else
583                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
584         }
585
586         /* if none match, provide the one that matches quality closest */
587         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
588                                   enc->sample_fmt - min_dec;
589     }
590 }
591
592 static void choose_sample_rate(AVStream *st, AVCodec *codec)
593 {
594     if(codec && codec->supported_samplerates){
595         const int *p= codec->supported_samplerates;
596         int best=0;
597         int best_dist=INT_MAX;
598         for(; *p; p++){
599             int dist= abs(st->codec->sample_rate - *p);
600             if(dist < best_dist){
601                 best_dist= dist;
602                 best= *p;
603             }
604         }
605         if(best_dist){
606             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
607         }
608         st->codec->sample_rate= best;
609     }
610 }
611
612 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
613 {
614     if(codec && codec->pix_fmts){
615         const enum PixelFormat *p= codec->pix_fmts;
616         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
617             if(st->codec->codec_id==CODEC_ID_MJPEG){
618                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
619             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
620                 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};
621             }
622         }
623         for(; *p!=-1; p++){
624             if(*p == st->codec->pix_fmt)
625                 break;
626         }
627         if (*p == -1) {
628             if(st->codec->pix_fmt != PIX_FMT_NONE)
629                 av_log(NULL, AV_LOG_WARNING,
630                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
631                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
632                         codec->name,
633                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
634             st->codec->pix_fmt = codec->pix_fmts[0];
635         }
636     }
637 }
638
639 static double
640 get_sync_ipts(const OutputStream *ost)
641 {
642     const InputStream *ist = ost->sync_ist;
643     return (double)(ist->pts - start_time)/AV_TIME_BASE;
644 }
645
646 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
647     int ret;
648
649     while(bsfc){
650         AVPacket new_pkt= *pkt;
651         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
652                                           &new_pkt.data, &new_pkt.size,
653                                           pkt->data, pkt->size,
654                                           pkt->flags & AV_PKT_FLAG_KEY);
655         if(a>0){
656             av_free_packet(pkt);
657             new_pkt.destruct= av_destruct_packet;
658         } else if(a<0){
659             fprintf(stderr, "%s failed for stream %d, codec %s",
660                     bsfc->filter->name, pkt->stream_index,
661                     avctx->codec ? avctx->codec->name : "copy");
662             print_error("", a);
663             if (exit_on_error)
664                 exit_program(1);
665         }
666         *pkt= new_pkt;
667
668         bsfc= bsfc->next;
669     }
670
671     ret= av_interleaved_write_frame(s, pkt);
672     if(ret < 0){
673         print_error("av_interleaved_write_frame()", ret);
674         exit_program(1);
675     }
676 }
677
678 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
679
680 static void do_audio_out(AVFormatContext *s,
681                          OutputStream *ost,
682                          InputStream *ist,
683                          unsigned char *buf, int size)
684 {
685     uint8_t *buftmp;
686     int64_t audio_out_size, audio_buf_size;
687     int64_t allocated_for_size= size;
688
689     int size_out, frame_bytes, ret, resample_changed;
690     AVCodecContext *enc= ost->st->codec;
691     AVCodecContext *dec= ist->st->codec;
692     int osize = av_get_bytes_per_sample(enc->sample_fmt);
693     int isize = av_get_bytes_per_sample(dec->sample_fmt);
694     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
695
696 need_realloc:
697     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
698     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
699     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
700     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
701     audio_buf_size*= osize*enc->channels;
702
703     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
704     if(coded_bps > 8*osize)
705         audio_out_size= audio_out_size * coded_bps / (8*osize);
706     audio_out_size += FF_MIN_BUFFER_SIZE;
707
708     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
709         fprintf(stderr, "Buffer sizes too large\n");
710         exit_program(1);
711     }
712
713     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
714     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
715     if (!audio_buf || !audio_out){
716         fprintf(stderr, "Out of memory in do_audio_out\n");
717         exit_program(1);
718     }
719
720     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
721         ost->audio_resample = 1;
722
723     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
724                        ost->resample_channels    != dec->channels   ||
725                        ost->resample_sample_rate != dec->sample_rate;
726
727     if ((ost->audio_resample && !ost->resample) || resample_changed) {
728         if (resample_changed) {
729             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",
730                    ist->file_index, ist->st->index,
731                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
732                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
733             ost->resample_sample_fmt  = dec->sample_fmt;
734             ost->resample_channels    = dec->channels;
735             ost->resample_sample_rate = dec->sample_rate;
736             if (ost->resample)
737                 audio_resample_close(ost->resample);
738         }
739         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
740         if (audio_sync_method <= 1 &&
741             ost->resample_sample_fmt  == enc->sample_fmt &&
742             ost->resample_channels    == enc->channels   &&
743             ost->resample_sample_rate == enc->sample_rate) {
744             ost->resample = NULL;
745             ost->audio_resample = 0;
746         } else if (ost->audio_resample) {
747             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
748                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
749             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
750                                                    enc->sample_rate, dec->sample_rate,
751                                                    enc->sample_fmt,  dec->sample_fmt,
752                                                    16, 10, 0, 0.8);
753             if (!ost->resample) {
754                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
755                         dec->channels, dec->sample_rate,
756                         enc->channels, enc->sample_rate);
757                 exit_program(1);
758             }
759         }
760     }
761
762 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
763     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
764         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
765         if (ost->reformat_ctx)
766             av_audio_convert_free(ost->reformat_ctx);
767         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
768                                                    dec->sample_fmt, 1, NULL, 0);
769         if (!ost->reformat_ctx) {
770             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
771                 av_get_sample_fmt_name(dec->sample_fmt),
772                 av_get_sample_fmt_name(enc->sample_fmt));
773             exit_program(1);
774         }
775         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
776     }
777
778     if(audio_sync_method){
779         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
780                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
781         double idelta= delta*dec->sample_rate / enc->sample_rate;
782         int byte_delta= ((int)idelta)*2*dec->channels;
783
784         //FIXME resample delay
785         if(fabs(delta) > 50){
786             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
787                 if(byte_delta < 0){
788                     byte_delta= FFMAX(byte_delta, -size);
789                     size += byte_delta;
790                     buf  -= byte_delta;
791                     if(verbose > 2)
792                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
793                     if(!size)
794                         return;
795                     ist->is_start=0;
796                 }else{
797                     static uint8_t *input_tmp= NULL;
798                     input_tmp= av_realloc(input_tmp, byte_delta + size);
799
800                     if(byte_delta > allocated_for_size - size){
801                         allocated_for_size= byte_delta + (int64_t)size;
802                         goto need_realloc;
803                     }
804                     ist->is_start=0;
805
806                     memset(input_tmp, 0, byte_delta);
807                     memcpy(input_tmp + byte_delta, buf, size);
808                     buf= input_tmp;
809                     size += byte_delta;
810                     if(verbose > 2)
811                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
812                 }
813             }else if(audio_sync_method>1){
814                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
815                 av_assert0(ost->audio_resample);
816                 if(verbose > 2)
817                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
818 //                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));
819                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
820             }
821         }
822     }else
823         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
824                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
825
826     if (ost->audio_resample) {
827         buftmp = audio_buf;
828         size_out = audio_resample(ost->resample,
829                                   (short *)buftmp, (short *)buf,
830                                   size / (dec->channels * isize));
831         size_out = size_out * enc->channels * osize;
832     } else {
833         buftmp = buf;
834         size_out = size;
835     }
836
837     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
838         const void *ibuf[6]= {buftmp};
839         void *obuf[6]= {audio_buf};
840         int istride[6]= {isize};
841         int ostride[6]= {osize};
842         int len= size_out/istride[0];
843         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
844             printf("av_audio_convert() failed\n");
845             if (exit_on_error)
846                 exit_program(1);
847             return;
848         }
849         buftmp = audio_buf;
850         size_out = len*osize;
851     }
852
853     /* now encode as many frames as possible */
854     if (enc->frame_size > 1) {
855         /* output resampled raw samples */
856         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
857             fprintf(stderr, "av_fifo_realloc2() failed\n");
858             exit_program(1);
859         }
860         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
861
862         frame_bytes = enc->frame_size * osize * enc->channels;
863
864         while (av_fifo_size(ost->fifo) >= frame_bytes) {
865             AVPacket pkt;
866             av_init_packet(&pkt);
867
868             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
869
870             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
871
872             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
873                                        (short *)audio_buf);
874             if (ret < 0) {
875                 fprintf(stderr, "Audio encoding failed\n");
876                 exit_program(1);
877             }
878             audio_size += ret;
879             pkt.stream_index= ost->index;
880             pkt.data= audio_out;
881             pkt.size= ret;
882             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
883                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
884             pkt.flags |= AV_PKT_FLAG_KEY;
885             write_frame(s, &pkt, enc, ost->bitstream_filters);
886
887             ost->sync_opts += enc->frame_size;
888         }
889     } else {
890         AVPacket pkt;
891         av_init_packet(&pkt);
892
893         ost->sync_opts += size_out / (osize * enc->channels);
894
895         /* output a pcm frame */
896         /* determine the size of the coded buffer */
897         size_out /= osize;
898         if (coded_bps)
899             size_out = size_out*coded_bps/8;
900
901         if(size_out > audio_out_size){
902             fprintf(stderr, "Internal error, buffer size too small\n");
903             exit_program(1);
904         }
905
906         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907         ret = avcodec_encode_audio(enc, audio_out, size_out,
908                                    (short *)buftmp);
909         if (ret < 0) {
910             fprintf(stderr, "Audio encoding failed\n");
911             exit_program(1);
912         }
913         audio_size += ret;
914         pkt.stream_index= ost->index;
915         pkt.data= audio_out;
916         pkt.size= ret;
917         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
918             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
919         pkt.flags |= AV_PKT_FLAG_KEY;
920         write_frame(s, &pkt, enc, ost->bitstream_filters);
921     }
922 }
923
924 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
925 {
926     AVCodecContext *dec;
927     AVPicture *picture2;
928     AVPicture picture_tmp;
929     uint8_t *buf = 0;
930
931     dec = ist->st->codec;
932
933     /* deinterlace : must be done before any resize */
934     if (do_deinterlace) {
935         int size;
936
937         /* create temporary picture */
938         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
939         buf = av_malloc(size);
940         if (!buf)
941             return;
942
943         picture2 = &picture_tmp;
944         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
945
946         if(avpicture_deinterlace(picture2, picture,
947                                  dec->pix_fmt, dec->width, dec->height) < 0) {
948             /* if error, do not deinterlace */
949             fprintf(stderr, "Deinterlacing failed\n");
950             av_free(buf);
951             buf = NULL;
952             picture2 = picture;
953         }
954     } else {
955         picture2 = picture;
956     }
957
958     if (picture != picture2)
959         *picture = *picture2;
960     *bufp = buf;
961 }
962
963 /* we begin to correct av delay at this threshold */
964 #define AV_DELAY_MAX 0.100
965
966 static void do_subtitle_out(AVFormatContext *s,
967                             OutputStream *ost,
968                             InputStream *ist,
969                             AVSubtitle *sub,
970                             int64_t pts)
971 {
972     static uint8_t *subtitle_out = NULL;
973     int subtitle_out_max_size = 1024 * 1024;
974     int subtitle_out_size, nb, i;
975     AVCodecContext *enc;
976     AVPacket pkt;
977
978     if (pts == AV_NOPTS_VALUE) {
979         fprintf(stderr, "Subtitle packets must have a pts\n");
980         if (exit_on_error)
981             exit_program(1);
982         return;
983     }
984
985     enc = ost->st->codec;
986
987     if (!subtitle_out) {
988         subtitle_out = av_malloc(subtitle_out_max_size);
989     }
990
991     /* Note: DVB subtitle need one packet to draw them and one other
992        packet to clear them */
993     /* XXX: signal it in the codec context ? */
994     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
995         nb = 2;
996     else
997         nb = 1;
998
999     for(i = 0; i < nb; i++) {
1000         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1001         // start_display_time is required to be 0
1002         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1003         sub->end_display_time -= sub->start_display_time;
1004         sub->start_display_time = 0;
1005         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1006                                                     subtitle_out_max_size, sub);
1007         if (subtitle_out_size < 0) {
1008             fprintf(stderr, "Subtitle encoding failed\n");
1009             exit_program(1);
1010         }
1011
1012         av_init_packet(&pkt);
1013         pkt.stream_index = ost->index;
1014         pkt.data = subtitle_out;
1015         pkt.size = subtitle_out_size;
1016         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1017         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1018             /* XXX: the pts correction is handled here. Maybe handling
1019                it in the codec would be better */
1020             if (i == 0)
1021                 pkt.pts += 90 * sub->start_display_time;
1022             else
1023                 pkt.pts += 90 * sub->end_display_time;
1024         }
1025         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1026     }
1027 }
1028
1029 static int bit_buffer_size= 1024*256;
1030 static uint8_t *bit_buffer= NULL;
1031
1032 static void do_video_resample(OutputStream *ost,
1033                               InputStream *ist,
1034                               AVFrame *in_picture,
1035                               AVFrame **out_picture)
1036 {
1037     int resample_changed = 0;
1038     AVCodecContext *dec = ist->st->codec;
1039     *out_picture = in_picture;
1040
1041     resample_changed = ost->resample_width   != dec->width  ||
1042                        ost->resample_height  != dec->height ||
1043                        ost->resample_pix_fmt != dec->pix_fmt;
1044
1045     if (resample_changed) {
1046         av_log(NULL, AV_LOG_INFO,
1047                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1048                ist->file_index, ist->st->index,
1049                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1050                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1051         if(!ost->video_resample)
1052             ost->video_resample = 1;
1053     }
1054
1055 #if !CONFIG_AVFILTER
1056     if (ost->video_resample) {
1057         *out_picture = &ost->pict_tmp;
1058         if (resample_changed) {
1059             /* initialize a new scaler context */
1060             sws_freeContext(ost->img_resample_ctx);
1061             ost->img_resample_ctx = sws_getContext(
1062                 ist->st->codec->width,
1063                 ist->st->codec->height,
1064                 ist->st->codec->pix_fmt,
1065                 ost->st->codec->width,
1066                 ost->st->codec->height,
1067                 ost->st->codec->pix_fmt,
1068                 ost->sws_flags, NULL, NULL, NULL);
1069             if (ost->img_resample_ctx == NULL) {
1070                 fprintf(stderr, "Cannot get resampling context\n");
1071                 exit_program(1);
1072             }
1073         }
1074         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1075               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1076     }
1077 #else
1078     if (resample_changed) {
1079         avfilter_graph_free(&ost->graph);
1080         if (configure_video_filters(ist, ost)) {
1081             fprintf(stderr, "Error reinitialising filters!\n");
1082             exit_program(1);
1083         }
1084     }
1085 #endif
1086     if (resample_changed) {
1087         ost->resample_width   = dec->width;
1088         ost->resample_height  = dec->height;
1089         ost->resample_pix_fmt = dec->pix_fmt;
1090     }
1091 }
1092
1093
1094 static void do_video_out(AVFormatContext *s,
1095                          OutputStream *ost,
1096                          InputStream *ist,
1097                          AVFrame *in_picture,
1098                          int *frame_size, float quality)
1099 {
1100     int nb_frames, i, ret, format_video_sync;
1101     AVFrame *final_picture;
1102     AVCodecContext *enc, *dec;
1103     double sync_ipts;
1104
1105     enc = ost->st->codec;
1106     dec = ist->st->codec;
1107
1108     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1109
1110     /* by default, we output a single frame */
1111     nb_frames = 1;
1112
1113     *frame_size = 0;
1114
1115     format_video_sync = video_sync_method;
1116     if (format_video_sync < 0)
1117         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1118
1119     if (format_video_sync) {
1120         double vdelta = sync_ipts - ost->sync_opts;
1121         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1122         if (vdelta < -1.1)
1123             nb_frames = 0;
1124         else if (format_video_sync == 2) {
1125             if(vdelta<=-0.6){
1126                 nb_frames=0;
1127             }else if(vdelta>0.6)
1128                 ost->sync_opts= lrintf(sync_ipts);
1129         }else if (vdelta > 1.1)
1130             nb_frames = lrintf(vdelta);
1131 //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);
1132         if (nb_frames == 0){
1133             ++nb_frames_drop;
1134             if (verbose>2)
1135                 fprintf(stderr, "*** drop!\n");
1136         }else if (nb_frames > 1) {
1137             nb_frames_dup += nb_frames - 1;
1138             if (verbose>2)
1139                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1140         }
1141     }else
1142         ost->sync_opts= lrintf(sync_ipts);
1143
1144     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1145     if (nb_frames <= 0)
1146         return;
1147
1148     do_video_resample(ost, ist, in_picture, &final_picture);
1149
1150     /* duplicates frame if needed */
1151     for(i=0;i<nb_frames;i++) {
1152         AVPacket pkt;
1153         av_init_packet(&pkt);
1154         pkt.stream_index= ost->index;
1155
1156         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1157             /* raw pictures are written as AVPicture structure to
1158                avoid any copies. We support temorarily the older
1159                method. */
1160             AVFrame* old_frame = enc->coded_frame;
1161             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1162             pkt.data= (uint8_t *)final_picture;
1163             pkt.size=  sizeof(AVPicture);
1164             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1165             pkt.flags |= AV_PKT_FLAG_KEY;
1166
1167             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1168             enc->coded_frame = old_frame;
1169         } else {
1170             AVFrame big_picture;
1171
1172             big_picture= *final_picture;
1173             /* better than nothing: use input picture interlaced
1174                settings */
1175             big_picture.interlaced_frame = in_picture->interlaced_frame;
1176             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1177                 if(top_field_first == -1)
1178                     big_picture.top_field_first = in_picture->top_field_first;
1179                 else
1180                     big_picture.top_field_first = top_field_first;
1181             }
1182
1183             /* handles same_quant here. This is not correct because it may
1184                not be a global option */
1185             big_picture.quality = quality;
1186             if(!me_threshold)
1187                 big_picture.pict_type = 0;
1188 //            big_picture.pts = AV_NOPTS_VALUE;
1189             big_picture.pts= ost->sync_opts;
1190 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1191 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1192             if (ost->forced_kf_index < ost->forced_kf_count &&
1193                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1194                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1195                 ost->forced_kf_index++;
1196             }
1197             ret = avcodec_encode_video(enc,
1198                                        bit_buffer, bit_buffer_size,
1199                                        &big_picture);
1200             if (ret < 0) {
1201                 fprintf(stderr, "Video encoding failed\n");
1202                 exit_program(1);
1203             }
1204
1205             if(ret>0){
1206                 pkt.data= bit_buffer;
1207                 pkt.size= ret;
1208                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1209                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1210 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1211    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1212    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1213
1214                 if(enc->coded_frame->key_frame)
1215                     pkt.flags |= AV_PKT_FLAG_KEY;
1216                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1217                 *frame_size = ret;
1218                 video_size += ret;
1219                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1220                 //        enc->frame_number-1, ret, enc->pict_type);
1221                 /* if two pass, output log */
1222                 if (ost->logfile && enc->stats_out) {
1223                     fprintf(ost->logfile, "%s", enc->stats_out);
1224                 }
1225             }
1226         }
1227         ost->sync_opts++;
1228         ost->frame_number++;
1229     }
1230 }
1231
1232 static double psnr(double d){
1233     return -10.0*log(d)/log(10.0);
1234 }
1235
1236 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1237                            int frame_size)
1238 {
1239     AVCodecContext *enc;
1240     int frame_number;
1241     double ti1, bitrate, avg_bitrate;
1242
1243     /* this is executed just the first time do_video_stats is called */
1244     if (!vstats_file) {
1245         vstats_file = fopen(vstats_filename, "w");
1246         if (!vstats_file) {
1247             perror("fopen");
1248             exit_program(1);
1249         }
1250     }
1251
1252     enc = ost->st->codec;
1253     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1254         frame_number = ost->frame_number;
1255         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1256         if (enc->flags&CODEC_FLAG_PSNR)
1257             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1258
1259         fprintf(vstats_file,"f_size= %6d ", frame_size);
1260         /* compute pts value */
1261         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1262         if (ti1 < 0.01)
1263             ti1 = 0.01;
1264
1265         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1266         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1267         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1268             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1269         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1270     }
1271 }
1272
1273 static void print_report(AVFormatContext **output_files,
1274                          OutputStream **ost_table, int nb_ostreams,
1275                          int is_last_report)
1276 {
1277     char buf[1024];
1278     OutputStream *ost;
1279     AVFormatContext *oc;
1280     int64_t total_size;
1281     AVCodecContext *enc;
1282     int frame_number, vid, i;
1283     double bitrate, ti1, pts;
1284     static int64_t last_time = -1;
1285     static int qp_histogram[52];
1286
1287     if (!is_last_report) {
1288         int64_t cur_time;
1289         /* display the report every 0.5 seconds */
1290         cur_time = av_gettime();
1291         if (last_time == -1) {
1292             last_time = cur_time;
1293             return;
1294         }
1295         if ((cur_time - last_time) < 500000)
1296             return;
1297         last_time = cur_time;
1298     }
1299
1300
1301     oc = output_files[0];
1302
1303     total_size = avio_size(oc->pb);
1304     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1305         total_size= avio_tell(oc->pb);
1306
1307     buf[0] = '\0';
1308     ti1 = 1e10;
1309     vid = 0;
1310     for(i=0;i<nb_ostreams;i++) {
1311         float q = -1;
1312         ost = ost_table[i];
1313         enc = ost->st->codec;
1314         if (!ost->st->stream_copy && enc->coded_frame)
1315             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1316         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1317             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1318         }
1319         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1320             float t = (av_gettime()-timer_start) / 1000000.0;
1321
1322             frame_number = ost->frame_number;
1323             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1324                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1325             if(is_last_report)
1326                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1327             if(qp_hist){
1328                 int j;
1329                 int qp = lrintf(q);
1330                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1331                     qp_histogram[qp]++;
1332                 for(j=0; j<32; j++)
1333                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1334             }
1335             if (enc->flags&CODEC_FLAG_PSNR){
1336                 int j;
1337                 double error, error_sum=0;
1338                 double scale, scale_sum=0;
1339                 char type[3]= {'Y','U','V'};
1340                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1341                 for(j=0; j<3; j++){
1342                     if(is_last_report){
1343                         error= enc->error[j];
1344                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1345                     }else{
1346                         error= enc->coded_frame->error[j];
1347                         scale= enc->width*enc->height*255.0*255.0;
1348                     }
1349                     if(j) scale/=4;
1350                     error_sum += error;
1351                     scale_sum += scale;
1352                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1353                 }
1354                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1355             }
1356             vid = 1;
1357         }
1358         /* compute min output value */
1359         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1360         if ((pts < ti1) && (pts > 0))
1361             ti1 = pts;
1362     }
1363     if (ti1 < 0.01)
1364         ti1 = 0.01;
1365
1366     if (verbose > 0 || is_last_report) {
1367         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1368
1369         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1370             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1371             (double)total_size / 1024, ti1, bitrate);
1372
1373         if (nb_frames_dup || nb_frames_drop)
1374           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1375                   nb_frames_dup, nb_frames_drop);
1376
1377         if (verbose >= 0)
1378             fprintf(stderr, "%s    \r", buf);
1379
1380         fflush(stderr);
1381     }
1382
1383     if (is_last_report && verbose >= 0){
1384         int64_t raw= audio_size + video_size + extra_size;
1385         fprintf(stderr, "\n");
1386         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1387                 video_size/1024.0,
1388                 audio_size/1024.0,
1389                 extra_size/1024.0,
1390                 100.0*(total_size - raw)/raw
1391         );
1392     }
1393 }
1394
1395 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1396 {
1397     int fill_char = 0x00;
1398     if (sample_fmt == AV_SAMPLE_FMT_U8)
1399         fill_char = 0x80;
1400     memset(buf, fill_char, size);
1401 }
1402
1403 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1404 static int output_packet(InputStream *ist, int ist_index,
1405                          OutputStream **ost_table, int nb_ostreams,
1406                          const AVPacket *pkt)
1407 {
1408     AVFormatContext *os;
1409     OutputStream *ost;
1410     int ret, i;
1411     int got_output;
1412     AVFrame picture;
1413     void *buffer_to_free = NULL;
1414     static unsigned int samples_size= 0;
1415     AVSubtitle subtitle, *subtitle_to_free;
1416     int64_t pkt_pts = AV_NOPTS_VALUE;
1417 #if CONFIG_AVFILTER
1418     int frame_available;
1419 #endif
1420     float quality;
1421
1422     AVPacket avpkt;
1423     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1424
1425     if(ist->next_pts == AV_NOPTS_VALUE)
1426         ist->next_pts= ist->pts;
1427
1428     if (pkt == NULL) {
1429         /* EOF handling */
1430         av_init_packet(&avpkt);
1431         avpkt.data = NULL;
1432         avpkt.size = 0;
1433         goto handle_eof;
1434     } else {
1435         avpkt = *pkt;
1436     }
1437
1438     if(pkt->dts != AV_NOPTS_VALUE)
1439         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1440     if(pkt->pts != AV_NOPTS_VALUE)
1441         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1442
1443     //while we have more to decode or while the decoder did output something on EOF
1444     while (avpkt.size > 0 || (!pkt && got_output)) {
1445         uint8_t *data_buf, *decoded_data_buf;
1446         int data_size, decoded_data_size;
1447     handle_eof:
1448         ist->pts= ist->next_pts;
1449
1450         if(avpkt.size && avpkt.size != pkt->size &&
1451            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1452             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1453             ist->showed_multi_packet_warning=1;
1454         }
1455
1456         /* decode the packet if needed */
1457         decoded_data_buf = NULL; /* fail safe */
1458         decoded_data_size= 0;
1459         data_buf  = avpkt.data;
1460         data_size = avpkt.size;
1461         subtitle_to_free = NULL;
1462         if (ist->decoding_needed) {
1463             switch(ist->st->codec->codec_type) {
1464             case AVMEDIA_TYPE_AUDIO:{
1465                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1466                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1467                     av_free(samples);
1468                     samples= av_malloc(samples_size);
1469                 }
1470                 decoded_data_size= samples_size;
1471                     /* XXX: could avoid copy if PCM 16 bits with same
1472                        endianness as CPU */
1473                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1474                                             &avpkt);
1475                 if (ret < 0)
1476                     return ret;
1477                 avpkt.data += ret;
1478                 avpkt.size -= ret;
1479                 data_size   = ret;
1480                 got_output  = decoded_data_size > 0;
1481                 /* Some bug in mpeg audio decoder gives */
1482                 /* decoded_data_size < 0, it seems they are overflows */
1483                 if (!got_output) {
1484                     /* no audio frame */
1485                     continue;
1486                 }
1487                 decoded_data_buf = (uint8_t *)samples;
1488                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1489                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1490                 break;}
1491             case AVMEDIA_TYPE_VIDEO:
1492                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1493                     /* XXX: allocate picture correctly */
1494                     avcodec_get_frame_defaults(&picture);
1495                     avpkt.pts = pkt_pts;
1496                     avpkt.dts = ist->pts;
1497                     pkt_pts = AV_NOPTS_VALUE;
1498
1499                     ret = avcodec_decode_video2(ist->st->codec,
1500                                                 &picture, &got_output, &avpkt);
1501                     quality = same_quant ? picture.quality : 0;
1502                     if (ret < 0)
1503                         return ret;
1504                     if (!got_output) {
1505                         /* no picture yet */
1506                         goto discard_packet;
1507                     }
1508                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1509                     if (ist->st->codec->time_base.num != 0) {
1510                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1511                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1512                                           ist->st->codec->time_base.num * ticks) /
1513                             ist->st->codec->time_base.den;
1514                     }
1515                     avpkt.size = 0;
1516                     buffer_to_free = NULL;
1517                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1518                     break;
1519             case AVMEDIA_TYPE_SUBTITLE:
1520                 ret = avcodec_decode_subtitle2(ist->st->codec,
1521                                                &subtitle, &got_output, &avpkt);
1522                 if (ret < 0)
1523                     return ret;
1524                 if (!got_output) {
1525                     goto discard_packet;
1526                 }
1527                 subtitle_to_free = &subtitle;
1528                 avpkt.size = 0;
1529                 break;
1530             default:
1531                 return -1;
1532             }
1533         } else {
1534             switch(ist->st->codec->codec_type) {
1535             case AVMEDIA_TYPE_AUDIO:
1536                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1537                     ist->st->codec->sample_rate;
1538                 break;
1539             case AVMEDIA_TYPE_VIDEO:
1540                 if (ist->st->codec->time_base.num != 0) {
1541                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1542                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1543                                       ist->st->codec->time_base.num * ticks) /
1544                         ist->st->codec->time_base.den;
1545                 }
1546                 break;
1547             }
1548             ret = avpkt.size;
1549             avpkt.size = 0;
1550         }
1551
1552 #if CONFIG_AVFILTER
1553         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1554             for (i = 0; i < nb_ostreams; i++) {
1555                 ost = ost_table[i];
1556                 if (ost->input_video_filter && ost->source_index == ist_index) {
1557                     AVRational sar;
1558                     if (ist->st->sample_aspect_ratio.num)
1559                         sar = ist->st->sample_aspect_ratio;
1560                     else
1561                         sar = ist->st->codec->sample_aspect_ratio;
1562                     // add it to be filtered
1563                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1564                                              ist->pts,
1565                                              sar);
1566                 }
1567             }
1568         }
1569 #endif
1570
1571         // preprocess audio (volume)
1572         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1573             if (audio_volume != 256) {
1574                 short *volp;
1575                 volp = samples;
1576                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1577                     int v = ((*volp) * audio_volume + 128) >> 8;
1578                     if (v < -32768) v = -32768;
1579                     if (v >  32767) v = 32767;
1580                     *volp++ = v;
1581                 }
1582             }
1583         }
1584
1585         /* frame rate emulation */
1586         if (rate_emu) {
1587             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1588             int64_t now = av_gettime() - ist->start;
1589             if (pts > now)
1590                 usleep(pts - now);
1591         }
1592         /* if output time reached then transcode raw format,
1593            encode packets and output them */
1594         if (start_time == 0 || ist->pts >= start_time)
1595             for(i=0;i<nb_ostreams;i++) {
1596                 int frame_size;
1597
1598                 ost = ost_table[i];
1599                 if (ost->source_index == ist_index) {
1600 #if CONFIG_AVFILTER
1601                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1602                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1603                 while (frame_available) {
1604                     AVRational ist_pts_tb;
1605                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1606                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1607                     if (ost->picref)
1608                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1609 #endif
1610                     os = output_files[ost->file_index];
1611
1612                     /* set the input output pts pairs */
1613                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1614
1615                     if (ost->encoding_needed) {
1616                         av_assert0(ist->decoding_needed);
1617                         switch(ost->st->codec->codec_type) {
1618                         case AVMEDIA_TYPE_AUDIO:
1619                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1620                             break;
1621                         case AVMEDIA_TYPE_VIDEO:
1622 #if CONFIG_AVFILTER
1623                             if (ost->picref->video && !ost->frame_aspect_ratio)
1624                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1625 #endif
1626                             do_video_out(os, ost, ist, &picture, &frame_size,
1627                                          same_quant ? quality : ost->st->codec->global_quality);
1628                             if (vstats_filename && frame_size)
1629                                 do_video_stats(os, ost, frame_size);
1630                             break;
1631                         case AVMEDIA_TYPE_SUBTITLE:
1632                             do_subtitle_out(os, ost, ist, &subtitle,
1633                                             pkt->pts);
1634                             break;
1635                         default:
1636                             abort();
1637                         }
1638                     } else {
1639                         AVFrame avframe; //FIXME/XXX remove this
1640                         AVPacket opkt;
1641                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1642
1643                         av_init_packet(&opkt);
1644
1645                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1646 #if !CONFIG_AVFILTER
1647                             continue;
1648 #else
1649                             goto cont;
1650 #endif
1651
1652                         /* no reencoding needed : output the packet directly */
1653                         /* force the input stream PTS */
1654
1655                         avcodec_get_frame_defaults(&avframe);
1656                         ost->st->codec->coded_frame= &avframe;
1657                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1658
1659                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1660                             audio_size += data_size;
1661                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1662                             video_size += data_size;
1663                             ost->sync_opts++;
1664                         }
1665
1666                         opkt.stream_index= ost->index;
1667                         if(pkt->pts != AV_NOPTS_VALUE)
1668                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1669                         else
1670                             opkt.pts= AV_NOPTS_VALUE;
1671
1672                         if (pkt->dts == AV_NOPTS_VALUE)
1673                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1674                         else
1675                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1676                         opkt.dts -= ost_tb_start_time;
1677
1678                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1679                         opkt.flags= pkt->flags;
1680
1681                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1682                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1683                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1684                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1685                            ) {
1686                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1687                                 opkt.destruct= av_destruct_packet;
1688                         } else {
1689                             opkt.data = data_buf;
1690                             opkt.size = data_size;
1691                         }
1692
1693                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1694                         ost->st->codec->frame_number++;
1695                         ost->frame_number++;
1696                         av_free_packet(&opkt);
1697                     }
1698 #if CONFIG_AVFILTER
1699                     cont:
1700                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1701                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1702                     if (ost->picref)
1703                         avfilter_unref_buffer(ost->picref);
1704                 }
1705 #endif
1706                 }
1707             }
1708
1709         av_free(buffer_to_free);
1710         /* XXX: allocate the subtitles in the codec ? */
1711         if (subtitle_to_free) {
1712             avsubtitle_free(subtitle_to_free);
1713             subtitle_to_free = NULL;
1714         }
1715     }
1716  discard_packet:
1717     if (pkt == NULL) {
1718         /* EOF handling */
1719
1720         for(i=0;i<nb_ostreams;i++) {
1721             ost = ost_table[i];
1722             if (ost->source_index == ist_index) {
1723                 AVCodecContext *enc= ost->st->codec;
1724                 os = output_files[ost->file_index];
1725
1726                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1727                     continue;
1728                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1729                     continue;
1730
1731                 if (ost->encoding_needed) {
1732                     for(;;) {
1733                         AVPacket pkt;
1734                         int fifo_bytes;
1735                         av_init_packet(&pkt);
1736                         pkt.stream_index= ost->index;
1737
1738                         switch(ost->st->codec->codec_type) {
1739                         case AVMEDIA_TYPE_AUDIO:
1740                             fifo_bytes = av_fifo_size(ost->fifo);
1741                             ret = 0;
1742                             /* encode any samples remaining in fifo */
1743                             if (fifo_bytes > 0) {
1744                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1745                                 int fs_tmp = enc->frame_size;
1746
1747                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1748                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1749                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1750                                 } else { /* pad */
1751                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1752                                     if (allocated_audio_buf_size < frame_bytes)
1753                                         exit_program(1);
1754                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1755                                 }
1756
1757                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1758                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1759                                                           ost->st->time_base.num, enc->sample_rate);
1760                                 enc->frame_size = fs_tmp;
1761                             }
1762                             if(ret <= 0) {
1763                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1764                             }
1765                             if (ret < 0) {
1766                                 fprintf(stderr, "Audio encoding failed\n");
1767                                 exit_program(1);
1768                             }
1769                             audio_size += ret;
1770                             pkt.flags |= AV_PKT_FLAG_KEY;
1771                             break;
1772                         case AVMEDIA_TYPE_VIDEO:
1773                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1774                             if (ret < 0) {
1775                                 fprintf(stderr, "Video encoding failed\n");
1776                                 exit_program(1);
1777                             }
1778                             video_size += ret;
1779                             if(enc->coded_frame && enc->coded_frame->key_frame)
1780                                 pkt.flags |= AV_PKT_FLAG_KEY;
1781                             if (ost->logfile && enc->stats_out) {
1782                                 fprintf(ost->logfile, "%s", enc->stats_out);
1783                             }
1784                             break;
1785                         default:
1786                             ret=-1;
1787                         }
1788
1789                         if(ret<=0)
1790                             break;
1791                         pkt.data= bit_buffer;
1792                         pkt.size= ret;
1793                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1794                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1795                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1796                     }
1797                 }
1798             }
1799         }
1800     }
1801
1802     return 0;
1803 }
1804
1805 static void print_sdp(AVFormatContext **avc, int n)
1806 {
1807     char sdp[2048];
1808
1809     av_sdp_create(avc, n, sdp, sizeof(sdp));
1810     printf("SDP:\n%s\n", sdp);
1811     fflush(stdout);
1812 }
1813
1814 /*
1815  * The following code is the main loop of the file converter
1816  */
1817 static int transcode(AVFormatContext **output_files,
1818                      int nb_output_files,
1819                      InputFile *input_files,
1820                      int nb_input_files)
1821 {
1822     int ret = 0, i, j, k, n, nb_ostreams = 0;
1823     AVFormatContext *is, *os;
1824     AVCodecContext *codec, *icodec;
1825     OutputStream *ost, **ost_table = NULL;
1826     InputStream *ist;
1827     char error[1024];
1828     int want_sdp = 1;
1829     uint8_t no_packet[MAX_FILES]={0};
1830     int no_packet_count=0;
1831
1832     if (rate_emu)
1833         for (i = 0; i < nb_input_streams; i++)
1834             input_streams[i].start = av_gettime();
1835
1836     /* output stream init */
1837     nb_ostreams = 0;
1838     for(i=0;i<nb_output_files;i++) {
1839         os = output_files[i];
1840         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1841             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1842             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1843             ret = AVERROR(EINVAL);
1844             goto fail;
1845         }
1846         nb_ostreams += os->nb_streams;
1847     }
1848
1849     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1850     if (!ost_table)
1851         goto fail;
1852     n = 0;
1853     for(k=0;k<nb_output_files;k++) {
1854         os = output_files[k];
1855         for (i = 0; i < os->nb_streams; i++, n++)
1856             ost_table[n] = output_streams_for_file[k][i];
1857     }
1858
1859     /* for each output stream, we compute the right encoding parameters */
1860     for(i=0;i<nb_ostreams;i++) {
1861         ost = ost_table[i];
1862         os = output_files[ost->file_index];
1863         ist = &input_streams[ost->source_index];
1864
1865         codec = ost->st->codec;
1866         icodec = ist->st->codec;
1867
1868         ost->st->disposition = ist->st->disposition;
1869         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1870         codec->chroma_sample_location = icodec->chroma_sample_location;
1871
1872         if (ost->st->stream_copy) {
1873             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1874
1875             if (extra_size > INT_MAX)
1876                 goto fail;
1877
1878             /* if stream_copy is selected, no need to decode or encode */
1879             codec->codec_id = icodec->codec_id;
1880             codec->codec_type = icodec->codec_type;
1881
1882             if(!codec->codec_tag){
1883                 if(   !os->oformat->codec_tag
1884                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1885                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1886                     codec->codec_tag = icodec->codec_tag;
1887             }
1888
1889             codec->bit_rate = icodec->bit_rate;
1890             codec->rc_max_rate    = icodec->rc_max_rate;
1891             codec->rc_buffer_size = icodec->rc_buffer_size;
1892             codec->extradata= av_mallocz(extra_size);
1893             if (!codec->extradata)
1894                 goto fail;
1895             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1896             codec->extradata_size= icodec->extradata_size;
1897             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){
1898                 codec->time_base = icodec->time_base;
1899                 codec->time_base.num *= icodec->ticks_per_frame;
1900                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1901                           codec->time_base.num, codec->time_base.den, INT_MAX);
1902             }else
1903                 codec->time_base = ist->st->time_base;
1904             switch(codec->codec_type) {
1905             case AVMEDIA_TYPE_AUDIO:
1906                 if(audio_volume != 256) {
1907                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1908                     exit_program(1);
1909                 }
1910                 codec->channel_layout = icodec->channel_layout;
1911                 codec->sample_rate = icodec->sample_rate;
1912                 codec->channels = icodec->channels;
1913                 codec->frame_size = icodec->frame_size;
1914                 codec->audio_service_type = icodec->audio_service_type;
1915                 codec->block_align= icodec->block_align;
1916                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1917                     codec->block_align= 0;
1918                 if(codec->codec_id == CODEC_ID_AC3)
1919                     codec->block_align= 0;
1920                 break;
1921             case AVMEDIA_TYPE_VIDEO:
1922                 codec->pix_fmt = icodec->pix_fmt;
1923                 codec->width = icodec->width;
1924                 codec->height = icodec->height;
1925                 codec->has_b_frames = icodec->has_b_frames;
1926                 if (!codec->sample_aspect_ratio.num) {
1927                     codec->sample_aspect_ratio =
1928                     ost->st->sample_aspect_ratio =
1929                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1930                         ist->st->codec->sample_aspect_ratio.num ?
1931                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1932                 }
1933                 break;
1934             case AVMEDIA_TYPE_SUBTITLE:
1935                 codec->width = icodec->width;
1936                 codec->height = icodec->height;
1937                 break;
1938             case AVMEDIA_TYPE_DATA:
1939                 break;
1940             default:
1941                 abort();
1942             }
1943         } else {
1944             if (!ost->enc)
1945                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1946             switch(codec->codec_type) {
1947             case AVMEDIA_TYPE_AUDIO:
1948                 ost->fifo= av_fifo_alloc(1024);
1949                 if(!ost->fifo)
1950                     goto fail;
1951                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1952                 if (!codec->sample_rate) {
1953                     codec->sample_rate = icodec->sample_rate;
1954                     if (icodec->lowres)
1955                         codec->sample_rate >>= icodec->lowres;
1956                 }
1957                 choose_sample_rate(ost->st, ost->enc);
1958                 codec->time_base = (AVRational){1, codec->sample_rate};
1959                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1960                     codec->sample_fmt = icodec->sample_fmt;
1961                 choose_sample_fmt(ost->st, ost->enc);
1962                 if (!codec->channels)
1963                     codec->channels = icodec->channels;
1964                 codec->channel_layout = icodec->channel_layout;
1965                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1966                     codec->channel_layout = 0;
1967                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1968                 icodec->request_channels = codec->channels;
1969                 ist->decoding_needed = 1;
1970                 ost->encoding_needed = 1;
1971                 ost->resample_sample_fmt  = icodec->sample_fmt;
1972                 ost->resample_sample_rate = icodec->sample_rate;
1973                 ost->resample_channels    = icodec->channels;
1974                 break;
1975             case AVMEDIA_TYPE_VIDEO:
1976                 if (codec->pix_fmt == PIX_FMT_NONE)
1977                     codec->pix_fmt = icodec->pix_fmt;
1978                 choose_pixel_fmt(ost->st, ost->enc);
1979
1980                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1981                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1982                     exit_program(1);
1983                 }
1984
1985                 if (!codec->width || !codec->height) {
1986                     codec->width  = icodec->width;
1987                     codec->height = icodec->height;
1988                 }
1989
1990                 ost->video_resample = codec->width   != icodec->width  ||
1991                                       codec->height  != icodec->height ||
1992                                       codec->pix_fmt != icodec->pix_fmt;
1993                 if (ost->video_resample) {
1994 #if !CONFIG_AVFILTER
1995                     avcodec_get_frame_defaults(&ost->pict_tmp);
1996                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1997                                        codec->width, codec->height)) {
1998                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1999                         exit_program(1);
2000                     }
2001                     ost->img_resample_ctx = sws_getContext(
2002                         icodec->width,
2003                         icodec->height,
2004                         icodec->pix_fmt,
2005                         codec->width,
2006                         codec->height,
2007                         codec->pix_fmt,
2008                         ost->sws_flags, NULL, NULL, NULL);
2009                     if (ost->img_resample_ctx == NULL) {
2010                         fprintf(stderr, "Cannot get resampling context\n");
2011                         exit_program(1);
2012                     }
2013 #endif
2014                     codec->bits_per_raw_sample= 0;
2015                 }
2016
2017                 ost->resample_height = icodec->height;
2018                 ost->resample_width  = icodec->width;
2019                 ost->resample_pix_fmt= icodec->pix_fmt;
2020                 ost->encoding_needed = 1;
2021                 ist->decoding_needed = 1;
2022
2023                 if (!ost->frame_rate.num)
2024                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2025                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2026                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2027                     ost->frame_rate = ost->enc->supported_framerates[idx];
2028                 }
2029                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2030
2031 #if CONFIG_AVFILTER
2032                 if (configure_video_filters(ist, ost)) {
2033                     fprintf(stderr, "Error opening filters!\n");
2034                     exit(1);
2035                 }
2036 #endif
2037                 break;
2038             case AVMEDIA_TYPE_SUBTITLE:
2039                 ost->encoding_needed = 1;
2040                 ist->decoding_needed = 1;
2041                 break;
2042             default:
2043                 abort();
2044                 break;
2045             }
2046             /* two pass mode */
2047             if (ost->encoding_needed &&
2048                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2049                 char logfilename[1024];
2050                 FILE *f;
2051
2052                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2053                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2054                          i);
2055                 if (codec->flags & CODEC_FLAG_PASS1) {
2056                     f = fopen(logfilename, "wb");
2057                     if (!f) {
2058                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2059                         exit_program(1);
2060                     }
2061                     ost->logfile = f;
2062                 } else {
2063                     char  *logbuffer;
2064                     size_t logbuffer_size;
2065                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2066                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2067                         exit_program(1);
2068                     }
2069                     codec->stats_in = logbuffer;
2070                 }
2071             }
2072         }
2073         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2074             int size= codec->width * codec->height;
2075             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2076         }
2077     }
2078
2079     if (!bit_buffer)
2080         bit_buffer = av_malloc(bit_buffer_size);
2081     if (!bit_buffer) {
2082         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2083                 bit_buffer_size);
2084         ret = AVERROR(ENOMEM);
2085         goto fail;
2086     }
2087
2088     /* open each encoder */
2089     for(i=0;i<nb_ostreams;i++) {
2090         ost = ost_table[i];
2091         if (ost->encoding_needed) {
2092             AVCodec *codec = ost->enc;
2093             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2094             if (!codec) {
2095                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2096                          ost->st->codec->codec_id, ost->file_index, ost->index);
2097                 ret = AVERROR(EINVAL);
2098                 goto dump_format;
2099             }
2100             if (dec->subtitle_header) {
2101                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2102                 if (!ost->st->codec->subtitle_header) {
2103                     ret = AVERROR(ENOMEM);
2104                     goto dump_format;
2105                 }
2106                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2107                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2108             }
2109             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2110                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2111                         ost->file_index, ost->index);
2112                 ret = AVERROR(EINVAL);
2113                 goto dump_format;
2114             }
2115             assert_codec_experimental(ost->st->codec, 1);
2116             assert_avoptions(ost->opts);
2117             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2118                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2119                                              "It takes bits/s as argument, not kbits/s\n");
2120             extra_size += ost->st->codec->extradata_size;
2121         }
2122     }
2123
2124     /* open each decoder */
2125     for (i = 0; i < nb_input_streams; i++) {
2126         ist = &input_streams[i];
2127         if (ist->decoding_needed) {
2128             AVCodec *codec = ist->dec;
2129             if (!codec)
2130                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2131             if (!codec) {
2132                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2133                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2134                 ret = AVERROR(EINVAL);
2135                 goto dump_format;
2136             }
2137
2138             /* update requested sample format for the decoder based on the
2139                corresponding encoder sample format */
2140             for (j = 0; j < nb_ostreams; j++) {
2141                 ost = ost_table[j];
2142                 if (ost->source_index == i) {
2143                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2144                     break;
2145                 }
2146             }
2147
2148             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2149                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2150                         ist->file_index, ist->st->index);
2151                 ret = AVERROR(EINVAL);
2152                 goto dump_format;
2153             }
2154             assert_codec_experimental(ist->st->codec, 0);
2155             assert_avoptions(ost->opts);
2156         }
2157     }
2158
2159     /* init pts */
2160     for (i = 0; i < nb_input_streams; i++) {
2161         AVStream *st;
2162         ist = &input_streams[i];
2163         st= ist->st;
2164         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2165         ist->next_pts = AV_NOPTS_VALUE;
2166         init_pts_correction(&ist->pts_ctx);
2167         ist->is_start = 1;
2168     }
2169
2170     /* open files and write file headers */
2171     for(i=0;i<nb_output_files;i++) {
2172         os = output_files[i];
2173         if (avformat_write_header(os, &output_opts[i]) < 0) {
2174             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2175             ret = AVERROR(EINVAL);
2176             goto dump_format;
2177         }
2178         assert_avoptions(output_opts[i]);
2179         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2180             want_sdp = 0;
2181         }
2182     }
2183
2184  dump_format:
2185     /* dump the file output parameters - cannot be done before in case
2186        of stream copy */
2187     for(i=0;i<nb_output_files;i++) {
2188         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2189     }
2190
2191     /* dump the stream mapping */
2192     if (verbose >= 0) {
2193         fprintf(stderr, "Stream mapping:\n");
2194         for(i=0;i<nb_ostreams;i++) {
2195             ost = ost_table[i];
2196             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2197                     input_streams[ost->source_index].file_index,
2198                     input_streams[ost->source_index].st->index,
2199                     ost->file_index,
2200                     ost->index);
2201             if (ost->sync_ist != &input_streams[ost->source_index])
2202                 fprintf(stderr, " [sync #%d.%d]",
2203                         ost->sync_ist->file_index,
2204                         ost->sync_ist->st->index);
2205             if (ost->st->stream_copy)
2206                 fprintf(stderr, " (copy)");
2207             fprintf(stderr, "\n");
2208         }
2209     }
2210
2211     if (ret) {
2212         fprintf(stderr, "%s\n", error);
2213         goto fail;
2214     }
2215
2216     if (want_sdp) {
2217         print_sdp(output_files, nb_output_files);
2218     }
2219
2220     if (verbose >= 0)
2221         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2222     term_init();
2223
2224     timer_start = av_gettime();
2225
2226     for(; received_sigterm == 0;) {
2227         int file_index, ist_index;
2228         AVPacket pkt;
2229         int64_t ipts_min;
2230         double opts_min;
2231
2232     redo:
2233         ipts_min = INT64_MAX;
2234         opts_min= 1e100;
2235
2236         /* select the stream that we must read now by looking at the
2237            smallest output pts */
2238         file_index = -1;
2239         for(i=0;i<nb_ostreams;i++) {
2240             int64_t ipts;
2241             double  opts;
2242             ost = ost_table[i];
2243             os = output_files[ost->file_index];
2244             ist = &input_streams[ost->source_index];
2245             if(ist->is_past_recording_time || no_packet[ist->file_index])
2246                 continue;
2247                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2248             ipts = ist->pts;
2249             if (!input_files[ist->file_index].eof_reached){
2250                 if(ipts < ipts_min) {
2251                     ipts_min = ipts;
2252                     if(input_sync ) file_index = ist->file_index;
2253                 }
2254                 if(opts < opts_min) {
2255                     opts_min = opts;
2256                     if(!input_sync) file_index = ist->file_index;
2257                 }
2258             }
2259             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2260                 file_index= -1;
2261                 break;
2262             }
2263         }
2264         /* if none, if is finished */
2265         if (file_index < 0) {
2266             if(no_packet_count){
2267                 no_packet_count=0;
2268                 memset(no_packet, 0, sizeof(no_packet));
2269                 usleep(10000);
2270                 continue;
2271             }
2272             break;
2273         }
2274
2275         /* finish if limit size exhausted */
2276         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2277             break;
2278
2279         /* read a frame from it and output it in the fifo */
2280         is = input_files[file_index].ctx;
2281         ret= av_read_frame(is, &pkt);
2282         if(ret == AVERROR(EAGAIN)){
2283             no_packet[file_index]=1;
2284             no_packet_count++;
2285             continue;
2286         }
2287         if (ret < 0) {
2288             input_files[file_index].eof_reached = 1;
2289             if (opt_shortest)
2290                 break;
2291             else
2292                 continue;
2293         }
2294
2295         no_packet_count=0;
2296         memset(no_packet, 0, sizeof(no_packet));
2297
2298         if (do_pkt_dump) {
2299             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2300                              is->streams[pkt.stream_index]);
2301         }
2302         /* the following test is needed in case new streams appear
2303            dynamically in stream : we ignore them */
2304         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2305             goto discard_packet;
2306         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2307         ist = &input_streams[ist_index];
2308         if (ist->discard)
2309             goto discard_packet;
2310
2311         if (pkt.dts != AV_NOPTS_VALUE)
2312             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2313         if (pkt.pts != AV_NOPTS_VALUE)
2314             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2315
2316         if (ist->ts_scale) {
2317             if(pkt.pts != AV_NOPTS_VALUE)
2318                 pkt.pts *= ist->ts_scale;
2319             if(pkt.dts != AV_NOPTS_VALUE)
2320                 pkt.dts *= ist->ts_scale;
2321         }
2322
2323 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2324         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2325             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2326             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2327             int64_t delta= pkt_dts - ist->next_pts;
2328             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2329                 input_files[ist->file_index].ts_offset -= delta;
2330                 if (verbose > 2)
2331                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2332                             delta, input_files[ist->file_index].ts_offset);
2333                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2334                 if(pkt.pts != AV_NOPTS_VALUE)
2335                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2336             }
2337         }
2338
2339         /* finish if recording time exhausted */
2340         if (recording_time != INT64_MAX &&
2341             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2342             ist->is_past_recording_time = 1;
2343             goto discard_packet;
2344         }
2345
2346         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2347         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2348
2349             if (verbose >= 0)
2350                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2351                         ist->file_index, ist->st->index);
2352             if (exit_on_error)
2353                 exit_program(1);
2354             av_free_packet(&pkt);
2355             goto redo;
2356         }
2357
2358     discard_packet:
2359         av_free_packet(&pkt);
2360
2361         /* dump report by using the output first video and audio streams */
2362         print_report(output_files, ost_table, nb_ostreams, 0);
2363     }
2364
2365     /* at the end of stream, we must flush the decoder buffers */
2366     for (i = 0; i < nb_input_streams; i++) {
2367         ist = &input_streams[i];
2368         if (ist->decoding_needed) {
2369             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2370         }
2371     }
2372
2373     term_exit();
2374
2375     /* write the trailer if needed and close file */
2376     for(i=0;i<nb_output_files;i++) {
2377         os = output_files[i];
2378         av_write_trailer(os);
2379     }
2380
2381     /* dump report by using the first video and audio streams */
2382     print_report(output_files, ost_table, nb_ostreams, 1);
2383
2384     /* close each encoder */
2385     for(i=0;i<nb_ostreams;i++) {
2386         ost = ost_table[i];
2387         if (ost->encoding_needed) {
2388             av_freep(&ost->st->codec->stats_in);
2389             avcodec_close(ost->st->codec);
2390         }
2391 #if CONFIG_AVFILTER
2392         avfilter_graph_free(&ost->graph);
2393 #endif
2394     }
2395
2396     /* close each decoder */
2397     for (i = 0; i < nb_input_streams; i++) {
2398         ist = &input_streams[i];
2399         if (ist->decoding_needed) {
2400             avcodec_close(ist->st->codec);
2401         }
2402     }
2403
2404     /* finished ! */
2405     ret = 0;
2406
2407  fail:
2408     av_freep(&bit_buffer);
2409
2410     if (ost_table) {
2411         for(i=0;i<nb_ostreams;i++) {
2412             ost = ost_table[i];
2413             if (ost) {
2414                 if (ost->st->stream_copy)
2415                     av_freep(&ost->st->codec->extradata);
2416                 if (ost->logfile) {
2417                     fclose(ost->logfile);
2418                     ost->logfile = NULL;
2419                 }
2420                 av_fifo_free(ost->fifo); /* works even if fifo is not
2421                                              initialized but set to zero */
2422                 av_freep(&ost->st->codec->subtitle_header);
2423                 av_free(ost->pict_tmp.data[0]);
2424                 av_free(ost->forced_kf_pts);
2425                 if (ost->video_resample)
2426                     sws_freeContext(ost->img_resample_ctx);
2427                 if (ost->resample)
2428                     audio_resample_close(ost->resample);
2429                 if (ost->reformat_ctx)
2430                     av_audio_convert_free(ost->reformat_ctx);
2431                 av_dict_free(&ost->opts);
2432                 av_free(ost);
2433             }
2434         }
2435         av_free(ost_table);
2436     }
2437     return ret;
2438 }
2439
2440 static int opt_format(const char *opt, const char *arg)
2441 {
2442     last_asked_format = arg;
2443     return 0;
2444 }
2445
2446 static int opt_video_rc_override_string(const char *opt, const char *arg)
2447 {
2448     video_rc_override_string = arg;
2449     return 0;
2450 }
2451
2452 static int opt_me_threshold(const char *opt, const char *arg)
2453 {
2454     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2455     return 0;
2456 }
2457
2458 static int opt_verbose(const char *opt, const char *arg)
2459 {
2460     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2461     return 0;
2462 }
2463
2464 static int opt_frame_rate(const char *opt, const char *arg)
2465 {
2466     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2467         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2468         exit_program(1);
2469     }
2470     return 0;
2471 }
2472
2473 static int opt_frame_crop(const char *opt, const char *arg)
2474 {
2475     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2476     return AVERROR(EINVAL);
2477 }
2478
2479 static int opt_frame_size(const char *opt, const char *arg)
2480 {
2481     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2482         fprintf(stderr, "Incorrect frame size\n");
2483         return AVERROR(EINVAL);
2484     }
2485     return 0;
2486 }
2487
2488 static int opt_pad(const char *opt, const char *arg) {
2489     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2490     return -1;
2491 }
2492
2493 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2494 {
2495     if (strcmp(arg, "list")) {
2496         frame_pix_fmt = av_get_pix_fmt(arg);
2497         if (frame_pix_fmt == PIX_FMT_NONE) {
2498             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2499             return AVERROR(EINVAL);
2500         }
2501     } else {
2502         show_pix_fmts();
2503         exit_program(0);
2504     }
2505     return 0;
2506 }
2507
2508 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2509 {
2510     int x = 0, y = 0;
2511     double ar = 0;
2512     const char *p;
2513     char *end;
2514
2515     p = strchr(arg, ':');
2516     if (p) {
2517         x = strtol(arg, &end, 10);
2518         if (end == p)
2519             y = strtol(end+1, &end, 10);
2520         if (x > 0 && y > 0)
2521             ar = (double)x / (double)y;
2522     } else
2523         ar = strtod(arg, NULL);
2524
2525     if (!ar) {
2526         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2527         return AVERROR(EINVAL);
2528     }
2529     frame_aspect_ratio = ar;
2530     return 0;
2531 }
2532
2533 static int opt_metadata(const char *opt, const char *arg)
2534 {
2535     char *mid= strchr(arg, '=');
2536
2537     if(!mid){
2538         fprintf(stderr, "Missing =\n");
2539         exit_program(1);
2540     }
2541     *mid++= 0;
2542
2543     av_dict_set(&metadata, arg, mid, 0);
2544
2545     return 0;
2546 }
2547
2548 static int opt_qscale(const char *opt, const char *arg)
2549 {
2550     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2551     if (video_qscale == 0) {
2552         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2553         return AVERROR(EINVAL);
2554     }
2555     return 0;
2556 }
2557
2558 static int opt_top_field_first(const char *opt, const char *arg)
2559 {
2560     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2561     return 0;
2562 }
2563
2564 static int opt_thread_count(const char *opt, const char *arg)
2565 {
2566     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2567 #if !HAVE_THREADS
2568     if (verbose >= 0)
2569         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2570 #endif
2571     return 0;
2572 }
2573
2574 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2575 {
2576     if (strcmp(arg, "list")) {
2577         audio_sample_fmt = av_get_sample_fmt(arg);
2578         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2579             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2580             return AVERROR(EINVAL);
2581         }
2582     } else {
2583         int i;
2584         char fmt_str[128];
2585         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2586             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2587         exit_program(0);
2588     }
2589     return 0;
2590 }
2591
2592 static int opt_audio_rate(const char *opt, const char *arg)
2593 {
2594     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2595     return 0;
2596 }
2597
2598 static int opt_audio_channels(const char *opt, const char *arg)
2599 {
2600     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2601     return 0;
2602 }
2603
2604 static int opt_codec(const char *opt, const char *arg)
2605 {
2606     return av_dict_set(&codec_names, opt, arg, 0);
2607 }
2608
2609 static int opt_audio_codec(const char *opt, const char *arg)
2610 {
2611     return opt_codec("codec:a", arg);
2612 }
2613
2614 static int opt_video_codec(const char *opt, const char *arg)
2615 {
2616     return opt_codec("codec:v", arg);
2617 }
2618
2619 static int opt_subtitle_codec(const char *opt, const char *arg)
2620 {
2621     return opt_codec("codec:s", arg);
2622 }
2623
2624 static int opt_data_codec(const char *opt, const char *arg)
2625 {
2626     return opt_codec("codec:d", arg);
2627 }
2628
2629 static int opt_codec_tag(const char *opt, const char *arg)
2630 {
2631     char *tail;
2632     uint32_t *codec_tag;
2633
2634     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2635                 !strcmp(opt, "vtag") ? &video_codec_tag :
2636                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2637     if (!codec_tag)
2638         return -1;
2639
2640     *codec_tag = strtol(arg, &tail, 0);
2641     if (!tail || *tail)
2642         *codec_tag = AV_RL32(arg);
2643
2644     return 0;
2645 }
2646
2647 static int opt_map(const char *opt, const char *arg)
2648 {
2649     StreamMap *m = NULL;
2650     int i, negative = 0, file_idx;
2651     int sync_file_idx = -1, sync_stream_idx;
2652     char *p, *sync;
2653     char *map;
2654
2655     if (*arg == '-') {
2656         negative = 1;
2657         arg++;
2658     }
2659     map = av_strdup(arg);
2660
2661     /* parse sync stream first, just pick first matching stream */
2662     if (sync = strchr(map, ',')) {
2663         *sync = 0;
2664         sync_file_idx = strtol(sync + 1, &sync, 0);
2665         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2666             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2667             exit_program(1);
2668         }
2669         if (*sync)
2670             sync++;
2671         for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2672             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2673                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2674                 sync_stream_idx = i;
2675                 break;
2676             }
2677         if (i == input_files[sync_file_idx].ctx->nb_streams) {
2678             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2679                                        "match any streams.\n", arg);
2680             exit_program(1);
2681         }
2682     }
2683
2684
2685     file_idx = strtol(map, &p, 0);
2686     if (file_idx >= nb_input_files || file_idx < 0) {
2687         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2688         exit_program(1);
2689     }
2690     if (negative)
2691         /* disable some already defined maps */
2692         for (i = 0; i < nb_stream_maps; i++) {
2693             m = &stream_maps[i];
2694             if (check_stream_specifier(input_files[m->file_index].ctx,
2695                                        input_files[m->file_index].ctx->streams[m->stream_index],
2696                                        *p == ':' ? p + 1 : p) > 0)
2697                 m->disabled = 1;
2698         }
2699     else
2700         for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2701             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2702                         *p == ':' ? p + 1 : p) <= 0)
2703                 continue;
2704             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2705             m = &stream_maps[nb_stream_maps - 1];
2706
2707             m->file_index   = file_idx;
2708             m->stream_index = i;
2709
2710             if (sync_file_idx >= 0) {
2711                 m->sync_file_index   = sync_file_idx;
2712                 m->sync_stream_index = sync_stream_idx;
2713             } else {
2714                 m->sync_file_index   = file_idx;
2715                 m->sync_stream_index = i;
2716             }
2717         }
2718
2719     if (!m) {
2720         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2721         exit_program(1);
2722     }
2723
2724     av_freep(&map);
2725     return 0;
2726 }
2727
2728 static void parse_meta_type(char *arg, char *type, int *index)
2729 {
2730     if (*arg == ':') {
2731         *type = *(++arg);
2732         switch (*arg) {
2733         case 'g':
2734             break;
2735         case 's':
2736         case 'c':
2737         case 'p':
2738             if (*(++arg) == ':')
2739                 *index = strtol(++arg, NULL, 0);
2740             break;
2741         default:
2742             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2743             exit_program(1);
2744         }
2745     } else
2746         *type = 'g';
2747 }
2748
2749 static int opt_map_metadata(const char *opt, const char *arg)
2750 {
2751     MetadataMap *m, *m1;
2752     char *p;
2753
2754     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2755                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2756
2757     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2758     m->file = strtol(arg, &p, 0);
2759     parse_meta_type(p, &m->type, &m->index);
2760
2761     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2762     if (p = strchr(opt, ':'))
2763         parse_meta_type(p, &m1->type, &m1->index);
2764     else
2765         m1->type = 'g';
2766
2767     if (m->type == 'g' || m1->type == 'g')
2768         metadata_global_autocopy = 0;
2769     if (m->type == 's' || m1->type == 's')
2770         metadata_streams_autocopy = 0;
2771     if (m->type == 'c' || m1->type == 'c')
2772         metadata_chapters_autocopy = 0;
2773
2774     return 0;
2775 }
2776
2777 static int opt_input_ts_scale(const char *opt, const char *arg)
2778 {
2779     return av_dict_set(&ts_scale, opt, arg, 0);
2780 }
2781
2782 static int opt_recording_time(const char *opt, const char *arg)
2783 {
2784     recording_time = parse_time_or_die(opt, arg, 1);
2785     return 0;
2786 }
2787
2788 static int opt_start_time(const char *opt, const char *arg)
2789 {
2790     start_time = parse_time_or_die(opt, arg, 1);
2791     return 0;
2792 }
2793
2794 static int opt_input_ts_offset(const char *opt, const char *arg)
2795 {
2796     input_ts_offset = parse_time_or_die(opt, arg, 1);
2797     return 0;
2798 }
2799
2800 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2801 {
2802     const char *codec_string = encoder ? "encoder" : "decoder";
2803     AVCodec *codec;
2804
2805     if(!name)
2806         return CODEC_ID_NONE;
2807     codec = encoder ?
2808         avcodec_find_encoder_by_name(name) :
2809         avcodec_find_decoder_by_name(name);
2810     if(!codec) {
2811         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2812         exit_program(1);
2813     }
2814     if(codec->type != type) {
2815         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2816         exit_program(1);
2817     }
2818     return codec->id;
2819 }
2820
2821 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2822 {
2823     AVDictionaryEntry *e = NULL;
2824     char *codec_name = NULL;
2825     int ret;
2826
2827     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2828         char *p = strchr(e->key, ':');
2829
2830         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2831             codec_name = e->value;
2832         else if (ret < 0)
2833             exit_program(1);
2834     }
2835
2836     if (!codec_name) {
2837         if (s->oformat) {
2838             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2839             return avcodec_find_encoder(st->codec->codec_id);
2840         }
2841     } else if (!strcmp(codec_name, "copy"))
2842         st->stream_copy = 1;
2843     else {
2844         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2845         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2846                             avcodec_find_decoder_by_name(codec_name);
2847     }
2848
2849     return NULL;
2850 }
2851
2852 /**
2853  * Add all the streams from the given input file to the global
2854  * list of input streams.
2855  */
2856 static void add_input_streams(AVFormatContext *ic)
2857 {
2858     int i, rfps, rfps_base, ret;
2859
2860     for (i = 0; i < ic->nb_streams; i++) {
2861         AVStream *st = ic->streams[i];
2862         AVCodecContext *dec = st->codec;
2863         AVDictionaryEntry *e = NULL;
2864         InputStream *ist;
2865         char *scale = NULL;
2866
2867         dec->thread_count = thread_count;
2868
2869         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2870         ist = &input_streams[nb_input_streams - 1];
2871         ist->st = st;
2872         ist->file_index = nb_input_files;
2873         ist->discard = 1;
2874         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2875
2876         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2877             char *p = strchr(e->key, ':');
2878
2879             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2880                 scale = e->value;
2881             else if (ret < 0)
2882                 exit_program(1);
2883         }
2884         if (scale)
2885             ist->ts_scale = strtod(scale, NULL);
2886
2887         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2888
2889         switch (dec->codec_type) {
2890         case AVMEDIA_TYPE_AUDIO:
2891             if(audio_disable)
2892                 st->discard= AVDISCARD_ALL;
2893             break;
2894         case AVMEDIA_TYPE_VIDEO:
2895             rfps      = ic->streams[i]->r_frame_rate.num;
2896             rfps_base = ic->streams[i]->r_frame_rate.den;
2897             if (dec->lowres) {
2898                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2899                 dec->height >>= dec->lowres;
2900                 dec->width  >>= dec->lowres;
2901             }
2902             if(me_threshold)
2903                 dec->debug |= FF_DEBUG_MV;
2904
2905             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2906
2907                 if (verbose >= 0)
2908                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2909                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2910
2911                     (float)rfps / rfps_base, rfps, rfps_base);
2912             }
2913
2914             if(video_disable)
2915                 st->discard= AVDISCARD_ALL;
2916             else if(video_discard)
2917                 st->discard= video_discard;
2918             break;
2919         case AVMEDIA_TYPE_DATA:
2920             break;
2921         case AVMEDIA_TYPE_SUBTITLE:
2922             if(subtitle_disable)
2923                 st->discard = AVDISCARD_ALL;
2924             break;
2925         case AVMEDIA_TYPE_ATTACHMENT:
2926         case AVMEDIA_TYPE_UNKNOWN:
2927             break;
2928         default:
2929             abort();
2930         }
2931     }
2932 }
2933
2934 static int opt_input_file(const char *opt, const char *filename)
2935 {
2936     AVFormatContext *ic;
2937     AVInputFormat *file_iformat = NULL;
2938     int err, i, ret;
2939     int64_t timestamp;
2940     uint8_t buf[128];
2941     AVDictionary **opts;
2942     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2943
2944     if (last_asked_format) {
2945         if (!(file_iformat = av_find_input_format(last_asked_format))) {
2946             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2947             exit_program(1);
2948         }
2949         last_asked_format = NULL;
2950     }
2951
2952     if (!strcmp(filename, "-"))
2953         filename = "pipe:";
2954
2955     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2956                     !strcmp(filename, "/dev/stdin");
2957
2958     /* get default parameters from command line */
2959     ic = avformat_alloc_context();
2960     if (!ic) {
2961         print_error(filename, AVERROR(ENOMEM));
2962         exit_program(1);
2963     }
2964     if (audio_sample_rate) {
2965         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2966         av_dict_set(&format_opts, "sample_rate", buf, 0);
2967     }
2968     if (audio_channels) {
2969         snprintf(buf, sizeof(buf), "%d", audio_channels);
2970         av_dict_set(&format_opts, "channels", buf, 0);
2971     }
2972     if (frame_rate.num) {
2973         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2974         av_dict_set(&format_opts, "framerate", buf, 0);
2975     }
2976     if (frame_width && frame_height) {
2977         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2978         av_dict_set(&format_opts, "video_size", buf, 0);
2979     }
2980     if (frame_pix_fmt != PIX_FMT_NONE)
2981         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2982
2983     ic->flags |= AVFMT_FLAG_NONBLOCK;
2984
2985     /* open the input file with generic libav function */
2986     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2987     if (err < 0) {
2988         print_error(filename, err);
2989         exit_program(1);
2990     }
2991     assert_avoptions(format_opts);
2992
2993     if(opt_programid) {
2994         int i, j;
2995         int found=0;
2996         for(i=0; i<ic->nb_streams; i++){
2997             ic->streams[i]->discard= AVDISCARD_ALL;
2998         }
2999         for(i=0; i<ic->nb_programs; i++){
3000             AVProgram *p= ic->programs[i];
3001             if(p->id != opt_programid){
3002                 p->discard = AVDISCARD_ALL;
3003             }else{
3004                 found=1;
3005                 for(j=0; j<p->nb_stream_indexes; j++){
3006                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3007                 }
3008             }
3009         }
3010         if(!found){
3011             fprintf(stderr, "Specified program id not found\n");
3012             exit_program(1);
3013         }
3014         opt_programid=0;
3015     }
3016
3017     /* apply forced codec ids */
3018     for (i = 0; i < ic->nb_streams; i++)
3019         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3020
3021     /* Set AVCodecContext options for avformat_find_stream_info */
3022     opts = setup_find_stream_info_opts(ic, codec_opts);
3023     orig_nb_streams = ic->nb_streams;
3024
3025     /* If not enough info to get the stream parameters, we decode the
3026        first frames to get it. (used in mpeg case for example) */
3027     ret = avformat_find_stream_info(ic, opts);
3028     if (ret < 0 && verbose >= 0) {
3029         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3030         av_close_input_file(ic);
3031         exit_program(1);
3032     }
3033
3034     timestamp = start_time;
3035     /* add the stream start time */
3036     if (ic->start_time != AV_NOPTS_VALUE)
3037         timestamp += ic->start_time;
3038
3039     /* if seeking requested, we execute it */
3040     if (start_time != 0) {
3041         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3042         if (ret < 0) {
3043             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3044                     filename, (double)timestamp / AV_TIME_BASE);
3045         }
3046         /* reset seek info */
3047         start_time = 0;
3048     }
3049
3050     /* update the current parameters so that they match the one of the input stream */
3051     add_input_streams(ic);
3052
3053     /* dump the file content */
3054     if (verbose >= 0)
3055         av_dump_format(ic, nb_input_files, filename, 0);
3056
3057     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3058     input_files[nb_input_files - 1].ctx        = ic;
3059     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3060     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3061
3062     frame_rate    = (AVRational){0, 0};
3063     frame_pix_fmt = PIX_FMT_NONE;
3064     frame_height = 0;
3065     frame_width  = 0;
3066     audio_sample_rate = 0;
3067     audio_channels    = 0;
3068     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3069     av_dict_free(&ts_scale);
3070
3071     for (i = 0; i < orig_nb_streams; i++)
3072         av_dict_free(&opts[i]);
3073     av_freep(&opts);
3074     av_dict_free(&codec_names);
3075     uninit_opts();
3076     init_opts();
3077     return 0;
3078 }
3079
3080 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3081                                     AVCodecContext *avctx)
3082 {
3083     char *p;
3084     int n = 1, i;
3085     int64_t t;
3086
3087     for (p = kf; *p; p++)
3088         if (*p == ',')
3089             n++;
3090     ost->forced_kf_count = n;
3091     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3092     if (!ost->forced_kf_pts) {
3093         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3094         exit_program(1);
3095     }
3096     for (i = 0; i < n; i++) {
3097         p = i ? strchr(p, ',') + 1 : kf;
3098         t = parse_time_or_die("force_key_frames", p, 1);
3099         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3100     }
3101 }
3102
3103 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3104 {
3105     OutputStream *ost;
3106     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3107     int idx      = oc->nb_streams - 1;
3108
3109     if (!st) {
3110         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3111         exit_program(1);
3112     }
3113
3114     output_streams_for_file[nb_output_files] =
3115         grow_array(output_streams_for_file[nb_output_files],
3116                    sizeof(*output_streams_for_file[nb_output_files]),
3117                    &nb_output_streams_for_file[nb_output_files],
3118                    oc->nb_streams);
3119     ost = output_streams_for_file[nb_output_files][idx] =
3120         av_mallocz(sizeof(OutputStream));
3121     if (!ost) {
3122         fprintf(stderr, "Could not alloc output stream\n");
3123         exit_program(1);
3124     }
3125     ost->file_index = nb_output_files;
3126     ost->index = idx;
3127     ost->st    = st;
3128     st->codec->codec_type = type;
3129     ost->enc = choose_codec(oc, st, type, codec_names);
3130     if (ost->enc) {
3131         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3132     }
3133
3134     avcodec_get_context_defaults3(st->codec, ost->enc);
3135     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3136
3137     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3138     return ost;
3139 }
3140
3141 static OutputStream *new_video_stream(AVFormatContext *oc)
3142 {
3143     AVStream *st;
3144     OutputStream *ost;
3145     AVCodecContext *video_enc;
3146
3147     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3148     st  = ost->st;
3149     if (!st->stream_copy) {
3150         ost->frame_aspect_ratio = frame_aspect_ratio;
3151         frame_aspect_ratio = 0;
3152 #if CONFIG_AVFILTER
3153         ost->avfilter= vfilters;
3154         vfilters = NULL;
3155 #endif
3156     }
3157
3158     ost->bitstream_filters = video_bitstream_filters;
3159     video_bitstream_filters= NULL;
3160
3161     st->codec->thread_count= thread_count;
3162
3163     video_enc = st->codec;
3164
3165     if(video_codec_tag)
3166         video_enc->codec_tag= video_codec_tag;
3167
3168     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3169         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3170     }
3171
3172     if (st->stream_copy) {
3173         video_enc->sample_aspect_ratio =
3174         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3175     } else {
3176         const char *p;
3177         int i;
3178
3179         if (frame_rate.num)
3180             ost->frame_rate = frame_rate;
3181
3182         video_enc->width = frame_width;
3183         video_enc->height = frame_height;
3184         video_enc->pix_fmt = frame_pix_fmt;
3185         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3186
3187         if (intra_only)
3188             video_enc->gop_size = 0;
3189         if (video_qscale || same_quant) {
3190             video_enc->flags |= CODEC_FLAG_QSCALE;
3191             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3192         }
3193
3194         if(intra_matrix)
3195             video_enc->intra_matrix = intra_matrix;
3196         if(inter_matrix)
3197             video_enc->inter_matrix = inter_matrix;
3198
3199         p= video_rc_override_string;
3200         for(i=0; p; i++){
3201             int start, end, q;
3202             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3203             if(e!=3){
3204                 fprintf(stderr, "error parsing rc_override\n");
3205                 exit_program(1);
3206             }
3207             video_enc->rc_override=
3208                 av_realloc(video_enc->rc_override,
3209                            sizeof(RcOverride)*(i+1));
3210             video_enc->rc_override[i].start_frame= start;
3211             video_enc->rc_override[i].end_frame  = end;
3212             if(q>0){
3213                 video_enc->rc_override[i].qscale= q;
3214                 video_enc->rc_override[i].quality_factor= 1.0;
3215             }
3216             else{
3217                 video_enc->rc_override[i].qscale= 0;
3218                 video_enc->rc_override[i].quality_factor= -q/100.0;
3219             }
3220             p= strchr(p, '/');
3221             if(p) p++;
3222         }
3223         video_enc->rc_override_count=i;
3224         if (!video_enc->rc_initial_buffer_occupancy)
3225             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3226         video_enc->me_threshold= me_threshold;
3227         video_enc->intra_dc_precision= intra_dc_precision - 8;
3228
3229         if (do_psnr)
3230             video_enc->flags|= CODEC_FLAG_PSNR;
3231
3232         /* two pass mode */
3233         if (do_pass) {
3234             if (do_pass == 1) {
3235                 video_enc->flags |= CODEC_FLAG_PASS1;
3236             } else {
3237                 video_enc->flags |= CODEC_FLAG_PASS2;
3238             }
3239         }
3240
3241         if (forced_key_frames)
3242             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3243     }
3244     if (video_language) {
3245         av_dict_set(&st->metadata, "language", video_language, 0);
3246         av_freep(&video_language);
3247     }
3248
3249     /* reset some key parameters */
3250     video_disable = 0;
3251     av_freep(&forced_key_frames);
3252     frame_pix_fmt = PIX_FMT_NONE;
3253     return ost;
3254 }
3255
3256 static OutputStream *new_audio_stream(AVFormatContext *oc)
3257 {
3258     AVStream *st;
3259     OutputStream *ost;
3260     AVCodecContext *audio_enc;
3261
3262     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3263     st  = ost->st;
3264
3265     ost->bitstream_filters = audio_bitstream_filters;
3266     audio_bitstream_filters= NULL;
3267
3268     st->codec->thread_count= thread_count;
3269
3270     audio_enc = st->codec;
3271     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3272
3273     if(audio_codec_tag)
3274         audio_enc->codec_tag= audio_codec_tag;
3275
3276     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3277         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3278     }
3279     if (!st->stream_copy) {
3280         if (audio_qscale > QSCALE_NONE) {
3281             audio_enc->flags |= CODEC_FLAG_QSCALE;
3282             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3283         }
3284         if (audio_channels)
3285             audio_enc->channels = audio_channels;
3286         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3287             audio_enc->sample_fmt = audio_sample_fmt;
3288         if (audio_sample_rate)
3289             audio_enc->sample_rate = audio_sample_rate;
3290     }
3291     if (audio_language) {
3292         av_dict_set(&st->metadata, "language", audio_language, 0);
3293         av_freep(&audio_language);
3294     }
3295
3296     /* reset some key parameters */
3297     audio_disable = 0;
3298
3299     return ost;
3300 }
3301
3302 static OutputStream *new_data_stream(AVFormatContext *oc)
3303 {
3304     AVStream *st;
3305     OutputStream *ost;
3306     AVCodecContext *data_enc;
3307
3308     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3309     st  = ost->st;
3310     data_enc = st->codec;
3311     if (!st->stream_copy) {
3312         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3313         exit_program(1);
3314     }
3315
3316     if (data_codec_tag)
3317         data_enc->codec_tag= data_codec_tag;
3318
3319     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3320         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3321     }
3322
3323     data_disable = 0;
3324     return ost;
3325 }
3326
3327 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3328 {
3329     AVStream *st;
3330     OutputStream *ost;
3331     AVCodecContext *subtitle_enc;
3332
3333     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3334     st  = ost->st;
3335     subtitle_enc = st->codec;
3336
3337     ost->bitstream_filters = subtitle_bitstream_filters;
3338     subtitle_bitstream_filters= NULL;
3339
3340     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3341
3342     if(subtitle_codec_tag)
3343         subtitle_enc->codec_tag= subtitle_codec_tag;
3344
3345     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3346         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3347     }
3348
3349     if (subtitle_language) {
3350         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3351         av_freep(&subtitle_language);
3352     }
3353
3354     subtitle_disable = 0;
3355     return ost;
3356 }
3357
3358 /* arg format is "output-stream-index:streamid-value". */
3359 static int opt_streamid(const char *opt, const char *arg)
3360 {
3361     int idx;
3362     char *p;
3363     char idx_str[16];
3364
3365     av_strlcpy(idx_str, arg, sizeof(idx_str));
3366     p = strchr(idx_str, ':');
3367     if (!p) {
3368         fprintf(stderr,
3369                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3370                 arg, opt);
3371         exit_program(1);
3372     }
3373     *p++ = '\0';
3374     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3375     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3376     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3377     return 0;
3378 }
3379
3380 static int copy_chapters(int infile, int outfile)
3381 {
3382     AVFormatContext *is = input_files[infile].ctx;
3383     AVFormatContext *os = output_files[outfile];
3384     int i;
3385
3386     for (i = 0; i < is->nb_chapters; i++) {
3387         AVChapter *in_ch = is->chapters[i], *out_ch;
3388         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3389                                       AV_TIME_BASE_Q, in_ch->time_base);
3390         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3391                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3392
3393
3394         if (in_ch->end < ts_off)
3395             continue;
3396         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3397             break;
3398
3399         out_ch = av_mallocz(sizeof(AVChapter));
3400         if (!out_ch)
3401             return AVERROR(ENOMEM);
3402
3403         out_ch->id        = in_ch->id;
3404         out_ch->time_base = in_ch->time_base;
3405         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3406         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3407
3408         if (metadata_chapters_autocopy)
3409             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3410
3411         os->nb_chapters++;
3412         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3413         if (!os->chapters)
3414             return AVERROR(ENOMEM);
3415         os->chapters[os->nb_chapters - 1] = out_ch;
3416     }
3417     return 0;
3418 }
3419
3420 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3421 {
3422     int i, err;
3423     AVFormatContext *ic = NULL;
3424
3425     err = avformat_open_input(&ic, filename, NULL, NULL);
3426     if (err < 0)
3427         return err;
3428     /* copy stream format */
3429     for(i=0;i<ic->nb_streams;i++) {
3430         AVStream *st;
3431         OutputStream *ost;
3432         AVCodec *codec;
3433
3434         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3435         ost   = new_output_stream(s, codec->type);
3436         st    = ost->st;
3437
3438         // FIXME: a more elegant solution is needed
3439         memcpy(st, ic->streams[i], sizeof(AVStream));
3440         st->info = NULL;
3441         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3442
3443         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3444             choose_sample_fmt(st, codec);
3445         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3446             choose_pixel_fmt(st, codec);
3447     }
3448
3449     av_close_input_file(ic);
3450     return 0;
3451 }
3452
3453 static void opt_output_file(const char *filename)
3454 {
3455     AVFormatContext *oc;
3456     int i, err;
3457     AVOutputFormat *file_oformat;
3458     OutputStream *ost;
3459     InputStream  *ist;
3460
3461     if (!strcmp(filename, "-"))
3462         filename = "pipe:";
3463
3464     oc = avformat_alloc_context();
3465     if (!oc) {
3466         print_error(filename, AVERROR(ENOMEM));
3467         exit_program(1);
3468     }
3469
3470     if (last_asked_format) {
3471         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3472         if (!file_oformat) {
3473             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3474             exit_program(1);
3475         }
3476         last_asked_format = NULL;
3477     } else {
3478         file_oformat = av_guess_format(NULL, filename, NULL);
3479         if (!file_oformat) {
3480             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3481                     filename);
3482             exit_program(1);
3483         }
3484     }
3485
3486     oc->oformat = file_oformat;
3487     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3488
3489     if (!strcmp(file_oformat->name, "ffm") &&
3490         av_strstart(filename, "http:", NULL)) {
3491         /* special case for files sent to avserver: we get the stream
3492            parameters from avserver */
3493         int err = read_avserver_streams(oc, filename);
3494         if (err < 0) {
3495             print_error(filename, err);
3496             exit_program(1);
3497         }
3498     } else if (!nb_stream_maps) {
3499         /* pick the "best" stream of each type */
3500 #define NEW_STREAM(type, index)\
3501         if (index >= 0) {\
3502             ost = new_ ## type ## _stream(oc);\
3503             ost->source_index = index;\
3504             ost->sync_ist     = &input_streams[index];\
3505             input_streams[index].discard = 0;\
3506         }
3507
3508         /* video: highest resolution */
3509         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3510             int area = 0, idx = -1;
3511             for (i = 0; i < nb_input_streams; i++) {
3512                 ist = &input_streams[i];
3513                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3514                     ist->st->codec->width * ist->st->codec->height > area) {
3515                     area = ist->st->codec->width * ist->st->codec->height;
3516                     idx = i;
3517                 }
3518             }
3519             NEW_STREAM(video, idx);
3520         }
3521
3522         /* audio: most channels */
3523         if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3524             int channels = 0, idx = -1;
3525             for (i = 0; i < nb_input_streams; i++) {
3526                 ist = &input_streams[i];
3527                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3528                     ist->st->codec->channels > channels) {
3529                     channels = ist->st->codec->channels;
3530                     idx = i;
3531                 }
3532             }
3533             NEW_STREAM(audio, idx);
3534         }
3535
3536         /* subtitles: pick first */
3537         if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3538             for (i = 0; i < nb_input_streams; i++)
3539                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3540                     NEW_STREAM(subtitle, i);
3541                     break;
3542                 }
3543         }
3544         /* do something with data? */
3545     } else {
3546         for (i = 0; i < nb_stream_maps; i++) {
3547             StreamMap *map = &stream_maps[i];
3548
3549             if (map->disabled)
3550                 continue;
3551
3552             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3553             switch (ist->st->codec->codec_type) {
3554             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(oc);    break;
3555             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(oc);    break;
3556             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3557             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(oc);     break;
3558             default:
3559                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3560                        map->file_index, map->stream_index);
3561                 exit_program(1);
3562             }
3563
3564             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3565             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3566                                            map->sync_stream_index];
3567             ist->discard = 0;
3568         }
3569     }
3570
3571     av_dict_copy(&oc->metadata, metadata, 0);
3572     av_dict_free(&metadata);
3573
3574     av_dict_copy(&output_opts[nb_output_files], format_opts, 0);
3575     output_files[nb_output_files++] = oc;
3576
3577     /* check filename in case of an image number is expected */
3578     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3579         if (!av_filename_number_test(oc->filename)) {
3580             print_error(oc->filename, AVERROR(EINVAL));
3581             exit_program(1);
3582         }
3583     }
3584
3585     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3586         /* test if it already exists to avoid loosing precious files */
3587         if (!file_overwrite &&
3588             (strchr(filename, ':') == NULL ||
3589              filename[1] == ':' ||
3590              av_strstart(filename, "file:", NULL))) {
3591             if (avio_check(filename, 0) == 0) {
3592                 if (!using_stdin) {
3593                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3594                     fflush(stderr);
3595                     if (!read_yesno()) {
3596                         fprintf(stderr, "Not overwriting - exiting\n");
3597                         exit_program(1);
3598                     }
3599                 }
3600                 else {
3601                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3602                     exit_program(1);
3603                 }
3604             }
3605         }
3606
3607         /* open the file */
3608         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3609             print_error(filename, err);
3610             exit_program(1);
3611         }
3612     }
3613
3614     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3615     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3616     oc->flags |= AVFMT_FLAG_NONBLOCK;
3617
3618     /* copy chapters */
3619     if (chapters_input_file >= nb_input_files) {
3620         if (chapters_input_file == INT_MAX) {
3621             /* copy chapters from the first input file that has them*/
3622             chapters_input_file = -1;
3623             for (i = 0; i < nb_input_files; i++)
3624                 if (input_files[i].ctx->nb_chapters) {
3625                     chapters_input_file = i;
3626                     break;
3627                 }
3628         } else {
3629             av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3630                    chapters_input_file);
3631             exit_program(1);
3632         }
3633     }
3634     if (chapters_input_file >= 0)
3635         copy_chapters(chapters_input_file, nb_output_files - 1);
3636
3637     /* copy metadata */
3638     for (i = 0; i < nb_meta_data_maps; i++) {
3639         AVFormatContext *files[2];
3640         AVDictionary    **meta[2];
3641         int j;
3642
3643 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3644         if ((index) < 0 || (index) >= (nb_elems)) {\
3645             av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3646                      (desc), (index));\
3647             exit_program(1);\
3648         }
3649
3650         int in_file_index = meta_data_maps[i][1].file;
3651         if (in_file_index < 0)
3652             continue;
3653         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3654
3655         files[0] = oc;
3656         files[1] = input_files[in_file_index].ctx;
3657
3658         for (j = 0; j < 2; j++) {
3659 &n