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