avconv: merge two loops in output_packet().
[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         // preprocess audio (volume)
1556         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1557             if (audio_volume != 256) {
1558                 short *volp;
1559                 volp = samples;
1560                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1561                     int v = ((*volp) * audio_volume + 128) >> 8;
1562                     if (v < -32768) v = -32768;
1563                     if (v >  32767) v = 32767;
1564                     *volp++ = v;
1565                 }
1566             }
1567         }
1568
1569         /* frame rate emulation */
1570         if (rate_emu) {
1571             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1572             int64_t now = av_gettime() - ist->start;
1573             if (pts > now)
1574                 usleep(pts - now);
1575         }
1576         /* if output time reached then transcode raw format,
1577            encode packets and output them */
1578         if (start_time == 0 || ist->pts >= start_time)
1579             for(i=0;i<nb_ostreams;i++) {
1580                 int frame_size;
1581
1582                 ost = &ost_table[i];
1583                 if (ost->source_index != ist_index)
1584                     continue;
1585
1586 #if CONFIG_AVFILTER
1587                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1588                     ost->input_video_filter) {
1589                     AVRational sar;
1590                     if (ist->st->sample_aspect_ratio.num)
1591                         sar = ist->st->sample_aspect_ratio;
1592                     else
1593                         sar = ist->st->codec->sample_aspect_ratio;
1594                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1595                 }
1596                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1597                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1598                 while (frame_available) {
1599                     AVRational ist_pts_tb;
1600                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1601                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1602                     if (ost->picref)
1603                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1604 #endif
1605                     os = output_files[ost->file_index].ctx;
1606
1607                     /* set the input output pts pairs */
1608                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1609
1610                     if (ost->encoding_needed) {
1611                         av_assert0(ist->decoding_needed);
1612                         switch(ost->st->codec->codec_type) {
1613                         case AVMEDIA_TYPE_AUDIO:
1614                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1615                             break;
1616                         case AVMEDIA_TYPE_VIDEO:
1617 #if CONFIG_AVFILTER
1618                             if (ost->picref->video && !ost->frame_aspect_ratio)
1619                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1620 #endif
1621                             do_video_out(os, ost, ist, &picture, &frame_size,
1622                                          same_quant ? quality : ost->st->codec->global_quality);
1623                             if (vstats_filename && frame_size)
1624                                 do_video_stats(os, ost, frame_size);
1625                             break;
1626                         case AVMEDIA_TYPE_SUBTITLE:
1627                             do_subtitle_out(os, ost, ist, &subtitle,
1628                                             pkt->pts);
1629                             break;
1630                         default:
1631                             abort();
1632                         }
1633                     } else {
1634                         AVFrame avframe; //FIXME/XXX remove this
1635                         AVPacket opkt;
1636                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1637
1638                         av_init_packet(&opkt);
1639
1640                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1641 #if !CONFIG_AVFILTER
1642                             continue;
1643 #else
1644                             goto cont;
1645 #endif
1646
1647                         /* no reencoding needed : output the packet directly */
1648                         /* force the input stream PTS */
1649
1650                         avcodec_get_frame_defaults(&avframe);
1651                         ost->st->codec->coded_frame= &avframe;
1652                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1653
1654                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1655                             audio_size += data_size;
1656                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1657                             video_size += data_size;
1658                             ost->sync_opts++;
1659                         }
1660
1661                         opkt.stream_index= ost->index;
1662                         if(pkt->pts != AV_NOPTS_VALUE)
1663                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1664                         else
1665                             opkt.pts= AV_NOPTS_VALUE;
1666
1667                         if (pkt->dts == AV_NOPTS_VALUE)
1668                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1669                         else
1670                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1671                         opkt.dts -= ost_tb_start_time;
1672
1673                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1674                         opkt.flags= pkt->flags;
1675
1676                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1677                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1678                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1679                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1680                            ) {
1681                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1682                                 opkt.destruct= av_destruct_packet;
1683                         } else {
1684                             opkt.data = data_buf;
1685                             opkt.size = data_size;
1686                         }
1687
1688                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1689                         ost->st->codec->frame_number++;
1690                         ost->frame_number++;
1691                         av_free_packet(&opkt);
1692                     }
1693 #if CONFIG_AVFILTER
1694                     cont:
1695                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1696                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1697                     if (ost->picref)
1698                         avfilter_unref_buffer(ost->picref);
1699                 }
1700 #endif
1701             }
1702
1703         av_free(buffer_to_free);
1704         /* XXX: allocate the subtitles in the codec ? */
1705         if (subtitle_to_free) {
1706             avsubtitle_free(subtitle_to_free);
1707             subtitle_to_free = NULL;
1708         }
1709     }
1710  discard_packet:
1711     if (pkt == NULL) {
1712         /* EOF handling */
1713
1714         for(i=0;i<nb_ostreams;i++) {
1715             ost = &ost_table[i];
1716             if (ost->source_index == ist_index) {
1717                 AVCodecContext *enc= ost->st->codec;
1718                 os = output_files[ost->file_index].ctx;
1719
1720                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1721                     continue;
1722                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1723                     continue;
1724
1725                 if (ost->encoding_needed) {
1726                     for(;;) {
1727                         AVPacket pkt;
1728                         int fifo_bytes;
1729                         av_init_packet(&pkt);
1730                         pkt.stream_index= ost->index;
1731
1732                         switch(ost->st->codec->codec_type) {
1733                         case AVMEDIA_TYPE_AUDIO:
1734                             fifo_bytes = av_fifo_size(ost->fifo);
1735                             ret = 0;
1736                             /* encode any samples remaining in fifo */
1737                             if (fifo_bytes > 0) {
1738                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1739                                 int fs_tmp = enc->frame_size;
1740
1741                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1742                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1743                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1744                                 } else { /* pad */
1745                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1746                                     if (allocated_audio_buf_size < frame_bytes)
1747                                         exit_program(1);
1748                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1749                                 }
1750
1751                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1752                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1753                                                           ost->st->time_base.num, enc->sample_rate);
1754                                 enc->frame_size = fs_tmp;
1755                             }
1756                             if(ret <= 0) {
1757                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1758                             }
1759                             if (ret < 0) {
1760                                 fprintf(stderr, "Audio encoding failed\n");
1761                                 exit_program(1);
1762                             }
1763                             audio_size += ret;
1764                             pkt.flags |= AV_PKT_FLAG_KEY;
1765                             break;
1766                         case AVMEDIA_TYPE_VIDEO:
1767                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1768                             if (ret < 0) {
1769                                 fprintf(stderr, "Video encoding failed\n");
1770                                 exit_program(1);
1771                             }
1772                             video_size += ret;
1773                             if(enc->coded_frame && enc->coded_frame->key_frame)
1774                                 pkt.flags |= AV_PKT_FLAG_KEY;
1775                             if (ost->logfile && enc->stats_out) {
1776                                 fprintf(ost->logfile, "%s", enc->stats_out);
1777                             }
1778                             break;
1779                         default:
1780                             ret=-1;
1781                         }
1782
1783                         if(ret<=0)
1784                             break;
1785                         pkt.data= bit_buffer;
1786                         pkt.size= ret;
1787                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1788                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1789                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1790                     }
1791                 }
1792             }
1793         }
1794     }
1795
1796     return 0;
1797 }
1798
1799 static void print_sdp(OutputFile *output_files, int n)
1800 {
1801     char sdp[2048];
1802     int i;
1803     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1804
1805     if (!avc)
1806         exit_program(1);
1807     for (i = 0; i < n; i++)
1808         avc[i] = output_files[i].ctx;
1809
1810     av_sdp_create(avc, n, sdp, sizeof(sdp));
1811     printf("SDP:\n%s\n", sdp);
1812     fflush(stdout);
1813     av_freep(&avc);
1814 }
1815
1816 /*
1817  * The following code is the main loop of the file converter
1818  */
1819 static int transcode(OutputFile *output_files,
1820                      int nb_output_files,
1821                      InputFile *input_files,
1822                      int nb_input_files)
1823 {
1824     int ret = 0, i, j;
1825     AVFormatContext *is, *os;
1826     AVCodecContext *codec, *icodec;
1827     OutputStream *ost;
1828     InputStream *ist;
1829     char error[1024];
1830     int want_sdp = 1;
1831     uint8_t *no_packet;
1832     int no_packet_count=0;
1833
1834     if (!(no_packet = av_mallocz(nb_input_files)))
1835         exit_program(1);
1836
1837     if (rate_emu)
1838         for (i = 0; i < nb_input_streams; i++)
1839             input_streams[i].start = av_gettime();
1840
1841     /* output stream init */
1842     for(i=0;i<nb_output_files;i++) {
1843         os = output_files[i].ctx;
1844         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1845             av_dump_format(os, i, os->filename, 1);
1846             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1847             ret = AVERROR(EINVAL);
1848             goto fail;
1849         }
1850     }
1851
1852     /* for each output stream, we compute the right encoding parameters */
1853     for (i = 0; i < nb_output_streams; i++) {
1854         ost = &output_streams[i];
1855         os = output_files[ost->file_index].ctx;
1856         ist = &input_streams[ost->source_index];
1857
1858         codec = ost->st->codec;
1859         icodec = ist->st->codec;
1860
1861         ost->st->disposition = ist->st->disposition;
1862         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1863         codec->chroma_sample_location = icodec->chroma_sample_location;
1864
1865         if (ost->st->stream_copy) {
1866             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1867
1868             if (extra_size > INT_MAX)
1869                 goto fail;
1870
1871             /* if stream_copy is selected, no need to decode or encode */
1872             codec->codec_id = icodec->codec_id;
1873             codec->codec_type = icodec->codec_type;
1874
1875             if(!codec->codec_tag){
1876                 if(   !os->oformat->codec_tag
1877                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1878                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1879                     codec->codec_tag = icodec->codec_tag;
1880             }
1881
1882             codec->bit_rate = icodec->bit_rate;
1883             codec->rc_max_rate    = icodec->rc_max_rate;
1884             codec->rc_buffer_size = icodec->rc_buffer_size;
1885             codec->extradata= av_mallocz(extra_size);
1886             if (!codec->extradata)
1887                 goto fail;
1888             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1889             codec->extradata_size= icodec->extradata_size;
1890             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){
1891                 codec->time_base = icodec->time_base;
1892                 codec->time_base.num *= icodec->ticks_per_frame;
1893                 av_reduce(&codec->time_base.num, &codec->time_base.den,
1894                           codec->time_base.num, codec->time_base.den, INT_MAX);
1895             }else
1896                 codec->time_base = ist->st->time_base;
1897             switch(codec->codec_type) {
1898             case AVMEDIA_TYPE_AUDIO:
1899                 if(audio_volume != 256) {
1900                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1901                     exit_program(1);
1902                 }
1903                 codec->channel_layout = icodec->channel_layout;
1904                 codec->sample_rate = icodec->sample_rate;
1905                 codec->channels = icodec->channels;
1906                 codec->frame_size = icodec->frame_size;
1907                 codec->audio_service_type = icodec->audio_service_type;
1908                 codec->block_align= icodec->block_align;
1909                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1910                     codec->block_align= 0;
1911                 if(codec->codec_id == CODEC_ID_AC3)
1912                     codec->block_align= 0;
1913                 break;
1914             case AVMEDIA_TYPE_VIDEO:
1915                 codec->pix_fmt = icodec->pix_fmt;
1916                 codec->width = icodec->width;
1917                 codec->height = icodec->height;
1918                 codec->has_b_frames = icodec->has_b_frames;
1919                 if (!codec->sample_aspect_ratio.num) {
1920                     codec->sample_aspect_ratio =
1921                     ost->st->sample_aspect_ratio =
1922                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1923                         ist->st->codec->sample_aspect_ratio.num ?
1924                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1925                 }
1926                 break;
1927             case AVMEDIA_TYPE_SUBTITLE:
1928                 codec->width = icodec->width;
1929                 codec->height = icodec->height;
1930                 break;
1931             case AVMEDIA_TYPE_DATA:
1932                 break;
1933             default:
1934                 abort();
1935             }
1936         } else {
1937             if (!ost->enc)
1938                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1939             switch(codec->codec_type) {
1940             case AVMEDIA_TYPE_AUDIO:
1941                 ost->fifo= av_fifo_alloc(1024);
1942                 if(!ost->fifo)
1943                     goto fail;
1944                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1945                 if (!codec->sample_rate) {
1946                     codec->sample_rate = icodec->sample_rate;
1947                     if (icodec->lowres)
1948                         codec->sample_rate >>= icodec->lowres;
1949                 }
1950                 choose_sample_rate(ost->st, ost->enc);
1951                 codec->time_base = (AVRational){1, codec->sample_rate};
1952                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1953                     codec->sample_fmt = icodec->sample_fmt;
1954                 choose_sample_fmt(ost->st, ost->enc);
1955                 if (!codec->channels)
1956                     codec->channels = icodec->channels;
1957                 codec->channel_layout = icodec->channel_layout;
1958                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1959                     codec->channel_layout = 0;
1960                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1961                 icodec->request_channels = codec->channels;
1962                 ist->decoding_needed = 1;
1963                 ost->encoding_needed = 1;
1964                 ost->resample_sample_fmt  = icodec->sample_fmt;
1965                 ost->resample_sample_rate = icodec->sample_rate;
1966                 ost->resample_channels    = icodec->channels;
1967                 break;
1968             case AVMEDIA_TYPE_VIDEO:
1969                 if (codec->pix_fmt == PIX_FMT_NONE)
1970                     codec->pix_fmt = icodec->pix_fmt;
1971                 choose_pixel_fmt(ost->st, ost->enc);
1972
1973                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1974                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1975                     exit_program(1);
1976                 }
1977
1978                 if (!codec->width || !codec->height) {
1979                     codec->width  = icodec->width;
1980                     codec->height = icodec->height;
1981                 }
1982
1983                 ost->video_resample = codec->width   != icodec->width  ||
1984                                       codec->height  != icodec->height ||
1985                                       codec->pix_fmt != icodec->pix_fmt;
1986                 if (ost->video_resample) {
1987 #if !CONFIG_AVFILTER
1988                     avcodec_get_frame_defaults(&ost->pict_tmp);
1989                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1990                                        codec->width, codec->height)) {
1991                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1992                         exit_program(1);
1993                     }
1994                     ost->img_resample_ctx = sws_getContext(
1995                         icodec->width,
1996                         icodec->height,
1997                         icodec->pix_fmt,
1998                         codec->width,
1999                         codec->height,
2000                         codec->pix_fmt,
2001                         ost->sws_flags, NULL, NULL, NULL);
2002                     if (ost->img_resample_ctx == NULL) {
2003                         fprintf(stderr, "Cannot get resampling context\n");
2004                         exit_program(1);
2005                     }
2006 #endif
2007                     codec->bits_per_raw_sample= 0;
2008                 }
2009
2010                 ost->resample_height = icodec->height;
2011                 ost->resample_width  = icodec->width;
2012                 ost->resample_pix_fmt= icodec->pix_fmt;
2013                 ost->encoding_needed = 1;
2014                 ist->decoding_needed = 1;
2015
2016                 if (!ost->frame_rate.num)
2017                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2018                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2019                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2020                     ost->frame_rate = ost->enc->supported_framerates[idx];
2021                 }
2022                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2023
2024 #if CONFIG_AVFILTER
2025                 if (configure_video_filters(ist, ost)) {
2026                     fprintf(stderr, "Error opening filters!\n");
2027                     exit(1);
2028                 }
2029 #endif
2030                 break;
2031             case AVMEDIA_TYPE_SUBTITLE:
2032                 ost->encoding_needed = 1;
2033                 ist->decoding_needed = 1;
2034                 break;
2035             default:
2036                 abort();
2037                 break;
2038             }
2039             /* two pass mode */
2040             if (ost->encoding_needed &&
2041                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2042                 char logfilename[1024];
2043                 FILE *f;
2044
2045                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2046                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2047                          i);
2048                 if (codec->flags & CODEC_FLAG_PASS1) {
2049                     f = fopen(logfilename, "wb");
2050                     if (!f) {
2051                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2052                         exit_program(1);
2053                     }
2054                     ost->logfile = f;
2055                 } else {
2056                     char  *logbuffer;
2057                     size_t logbuffer_size;
2058                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2059                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2060                         exit_program(1);
2061                     }
2062                     codec->stats_in = logbuffer;
2063                 }
2064             }
2065         }
2066         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2067             int size= codec->width * codec->height;
2068             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2069         }
2070     }
2071
2072     if (!bit_buffer)
2073         bit_buffer = av_malloc(bit_buffer_size);
2074     if (!bit_buffer) {
2075         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2076                 bit_buffer_size);
2077         ret = AVERROR(ENOMEM);
2078         goto fail;
2079     }
2080
2081     /* open each encoder */
2082     for (i = 0; i < nb_output_streams; i++) {
2083         ost = &output_streams[i];
2084         if (ost->encoding_needed) {
2085             AVCodec *codec = ost->enc;
2086             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2087             if (!codec) {
2088                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2089                          ost->st->codec->codec_id, ost->file_index, ost->index);
2090                 ret = AVERROR(EINVAL);
2091                 goto dump_format;
2092             }
2093             if (dec->subtitle_header) {
2094                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2095                 if (!ost->st->codec->subtitle_header) {
2096                     ret = AVERROR(ENOMEM);
2097                     goto dump_format;
2098                 }
2099                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2100                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2101             }
2102             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2103                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2104                         ost->file_index, ost->index);
2105                 ret = AVERROR(EINVAL);
2106                 goto dump_format;
2107             }
2108             assert_codec_experimental(ost->st->codec, 1);
2109             assert_avoptions(ost->opts);
2110             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2111                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2112                                              "It takes bits/s as argument, not kbits/s\n");
2113             extra_size += ost->st->codec->extradata_size;
2114         }
2115     }
2116
2117     /* open each decoder */
2118     for (i = 0; i < nb_input_streams; i++) {
2119         ist = &input_streams[i];
2120         if (ist->decoding_needed) {
2121             AVCodec *codec = ist->dec;
2122             if (!codec)
2123                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2124             if (!codec) {
2125                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2126                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2127                 ret = AVERROR(EINVAL);
2128                 goto dump_format;
2129             }
2130
2131             /* update requested sample format for the decoder based on the
2132                corresponding encoder sample format */
2133             for (j = 0; j < nb_output_streams; j++) {
2134                 ost = &output_streams[j];
2135                 if (ost->source_index == i) {
2136                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2137                     break;
2138                 }
2139             }
2140
2141             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2142                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2143                         ist->file_index, ist->st->index);
2144                 ret = AVERROR(EINVAL);
2145                 goto dump_format;
2146             }
2147             assert_codec_experimental(ist->st->codec, 0);
2148             assert_avoptions(ost->opts);
2149         }
2150     }
2151
2152     /* init pts */
2153     for (i = 0; i < nb_input_streams; i++) {
2154         AVStream *st;
2155         ist = &input_streams[i];
2156         st= ist->st;
2157         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2158         ist->next_pts = AV_NOPTS_VALUE;
2159         init_pts_correction(&ist->pts_ctx);
2160         ist->is_start = 1;
2161     }
2162
2163     /* open files and write file headers */
2164     for (i = 0; i < nb_output_files; i++) {
2165         os = output_files[i].ctx;
2166         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2167             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2168             ret = AVERROR(EINVAL);
2169             goto dump_format;
2170         }
2171         assert_avoptions(output_files[i].opts);
2172         if (strcmp(os->oformat->name, "rtp")) {
2173             want_sdp = 0;
2174         }
2175     }
2176
2177  dump_format:
2178     /* dump the file output parameters - cannot be done before in case
2179        of stream copy */
2180     for(i=0;i<nb_output_files;i++) {
2181         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2182     }
2183
2184     /* dump the stream mapping */
2185     if (verbose >= 0) {
2186         fprintf(stderr, "Stream mapping:\n");
2187         for (i = 0; i < nb_output_streams;i ++) {
2188             ost = &output_streams[i];
2189             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2190                     input_streams[ost->source_index].file_index,
2191                     input_streams[ost->source_index].st->index,
2192                     ost->file_index,
2193                     ost->index);
2194             if (ost->sync_ist != &input_streams[ost->source_index])
2195                 fprintf(stderr, " [sync #%d.%d]",
2196                         ost->sync_ist->file_index,
2197                         ost->sync_ist->st->index);
2198             if (ost->st->stream_copy)
2199                 fprintf(stderr, " (copy)");
2200             fprintf(stderr, "\n");
2201         }
2202     }
2203
2204     if (ret) {
2205         fprintf(stderr, "%s\n", error);
2206         goto fail;
2207     }
2208
2209     if (want_sdp) {
2210         print_sdp(output_files, nb_output_files);
2211     }
2212
2213     if (verbose >= 0)
2214         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2215     term_init();
2216
2217     timer_start = av_gettime();
2218
2219     for(; received_sigterm == 0;) {
2220         int file_index, ist_index;
2221         AVPacket pkt;
2222         int64_t ipts_min;
2223         double opts_min;
2224
2225     redo:
2226         ipts_min = INT64_MAX;
2227         opts_min= 1e100;
2228
2229         /* select the stream that we must read now by looking at the
2230            smallest output pts */
2231         file_index = -1;
2232         for (i = 0; i < nb_output_streams; i++) {
2233             int64_t ipts;
2234             double  opts;
2235             ost = &output_streams[i];
2236             os = output_files[ost->file_index].ctx;
2237             ist = &input_streams[ost->source_index];
2238             if(ist->is_past_recording_time || no_packet[ist->file_index])
2239                 continue;
2240                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2241             ipts = ist->pts;
2242             if (!input_files[ist->file_index].eof_reached){
2243                 if(ipts < ipts_min) {
2244                     ipts_min = ipts;
2245                     if(input_sync ) file_index = ist->file_index;
2246                 }
2247                 if(opts < opts_min) {
2248                     opts_min = opts;
2249                     if(!input_sync) file_index = ist->file_index;
2250                 }
2251             }
2252             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2253                 file_index= -1;
2254                 break;
2255             }
2256         }
2257         /* if none, if is finished */
2258         if (file_index < 0) {
2259             if(no_packet_count){
2260                 no_packet_count=0;
2261                 memset(no_packet, 0, nb_input_files);
2262                 usleep(10000);
2263                 continue;
2264             }
2265             break;
2266         }
2267
2268         /* finish if limit size exhausted */
2269         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2270             break;
2271
2272         /* read a frame from it and output it in the fifo */
2273         is = input_files[file_index].ctx;
2274         ret= av_read_frame(is, &pkt);
2275         if(ret == AVERROR(EAGAIN)){
2276             no_packet[file_index]=1;
2277             no_packet_count++;
2278             continue;
2279         }
2280         if (ret < 0) {
2281             input_files[file_index].eof_reached = 1;
2282             if (opt_shortest)
2283                 break;
2284             else
2285                 continue;
2286         }
2287
2288         no_packet_count=0;
2289         memset(no_packet, 0, nb_input_files);
2290
2291         if (do_pkt_dump) {
2292             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2293                              is->streams[pkt.stream_index]);
2294         }
2295         /* the following test is needed in case new streams appear
2296            dynamically in stream : we ignore them */
2297         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2298             goto discard_packet;
2299         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2300         ist = &input_streams[ist_index];
2301         if (ist->discard)
2302             goto discard_packet;
2303
2304         if (pkt.dts != AV_NOPTS_VALUE)
2305             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2306         if (pkt.pts != AV_NOPTS_VALUE)
2307             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2308
2309         if (ist->ts_scale) {
2310             if(pkt.pts != AV_NOPTS_VALUE)
2311                 pkt.pts *= ist->ts_scale;
2312             if(pkt.dts != AV_NOPTS_VALUE)
2313                 pkt.dts *= ist->ts_scale;
2314         }
2315
2316 //        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);
2317         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2318             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2319             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2320             int64_t delta= pkt_dts - ist->next_pts;
2321             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2322                 input_files[ist->file_index].ts_offset -= delta;
2323                 if (verbose > 2)
2324                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2325                             delta, input_files[ist->file_index].ts_offset);
2326                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2327                 if(pkt.pts != AV_NOPTS_VALUE)
2328                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2329             }
2330         }
2331
2332         /* finish if recording time exhausted */
2333         if (recording_time != INT64_MAX &&
2334             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2335             ist->is_past_recording_time = 1;
2336             goto discard_packet;
2337         }
2338
2339         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2340         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2341
2342             if (verbose >= 0)
2343                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2344                         ist->file_index, ist->st->index);
2345             if (exit_on_error)
2346                 exit_program(1);
2347             av_free_packet(&pkt);
2348             goto redo;
2349         }
2350
2351     discard_packet:
2352         av_free_packet(&pkt);
2353
2354         /* dump report by using the output first video and audio streams */
2355         print_report(output_files, output_streams, nb_output_streams, 0);
2356     }
2357
2358     /* at the end of stream, we must flush the decoder buffers */
2359     for (i = 0; i < nb_input_streams; i++) {
2360         ist = &input_streams[i];
2361         if (ist->decoding_needed) {
2362             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2363         }
2364     }
2365
2366     term_exit();
2367
2368     /* write the trailer if needed and close file */
2369     for(i=0;i<nb_output_files;i++) {
2370         os = output_files[i].ctx;
2371         av_write_trailer(os);
2372     }
2373
2374     /* dump report by using the first video and audio streams */
2375     print_report(output_files, output_streams, nb_output_streams, 1);
2376
2377     /* close each encoder */
2378     for (i = 0; i < nb_output_streams; i++) {
2379         ost = &output_streams[i];
2380         if (ost->encoding_needed) {
2381             av_freep(&ost->st->codec->stats_in);
2382             avcodec_close(ost->st->codec);
2383         }
2384 #if CONFIG_AVFILTER
2385         avfilter_graph_free(&ost->graph);
2386 #endif
2387     }
2388
2389     /* close each decoder */
2390     for (i = 0; i < nb_input_streams; i++) {
2391         ist = &input_streams[i];
2392         if (ist->decoding_needed) {
2393             avcodec_close(ist->st->codec);
2394         }
2395     }
2396
2397     /* finished ! */
2398     ret = 0;
2399
2400  fail:
2401     av_freep(&bit_buffer);
2402     av_freep(&no_packet);
2403
2404     if (output_streams) {
2405         for (i = 0; i < nb_output_streams; i++) {
2406             ost = &output_streams[i];
2407             if (ost) {
2408                 if (ost->st->stream_copy)
2409                     av_freep(&ost->st->codec->extradata);
2410                 if (ost->logfile) {
2411                     fclose(ost->logfile);
2412                     ost->logfile = NULL;
2413                 }
2414                 av_fifo_free(ost->fifo); /* works even if fifo is not
2415                                              initialized but set to zero */
2416                 av_freep(&ost->st->codec->subtitle_header);
2417                 av_free(ost->pict_tmp.data[0]);
2418                 av_free(ost->forced_kf_pts);
2419                 if (ost->video_resample)
2420                     sws_freeContext(ost->img_resample_ctx);
2421                 if (ost->resample)
2422                     audio_resample_close(ost->resample);
2423                 if (ost->reformat_ctx)
2424                     av_audio_convert_free(ost->reformat_ctx);
2425                 av_dict_free(&ost->opts);
2426             }
2427         }
2428     }
2429     return ret;
2430 }
2431
2432 static int opt_format(const char *opt, const char *arg)
2433 {
2434     last_asked_format = arg;
2435     return 0;
2436 }
2437
2438 static int opt_video_rc_override_string(const char *opt, const char *arg)
2439 {
2440     video_rc_override_string = arg;
2441     return 0;
2442 }
2443
2444 static int opt_me_threshold(const char *opt, const char *arg)
2445 {
2446     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2447     return 0;
2448 }
2449
2450 static int opt_verbose(const char *opt, const char *arg)
2451 {
2452     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2453     return 0;
2454 }
2455
2456 static int opt_frame_rate(const char *opt, const char *arg)
2457 {
2458     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2459         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2460         exit_program(1);
2461     }
2462     return 0;
2463 }
2464
2465 static int opt_frame_crop(const char *opt, const char *arg)
2466 {
2467     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2468     return AVERROR(EINVAL);
2469 }
2470
2471 static int opt_frame_size(const char *opt, const char *arg)
2472 {
2473     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2474         fprintf(stderr, "Incorrect frame size\n");
2475         return AVERROR(EINVAL);
2476     }
2477     return 0;
2478 }
2479
2480 static int opt_pad(const char *opt, const char *arg) {
2481     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2482     return -1;
2483 }
2484
2485 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2486 {
2487     if (strcmp(arg, "list")) {
2488         frame_pix_fmt = av_get_pix_fmt(arg);
2489         if (frame_pix_fmt == PIX_FMT_NONE) {
2490             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2491             return AVERROR(EINVAL);
2492         }
2493     } else {
2494         show_pix_fmts();
2495         exit_program(0);
2496     }
2497     return 0;
2498 }
2499
2500 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2501 {
2502     int x = 0, y = 0;
2503     double ar = 0;
2504     const char *p;
2505     char *end;
2506
2507     p = strchr(arg, ':');
2508     if (p) {
2509         x = strtol(arg, &end, 10);
2510         if (end == p)
2511             y = strtol(end+1, &end, 10);
2512         if (x > 0 && y > 0)
2513             ar = (double)x / (double)y;
2514     } else
2515         ar = strtod(arg, NULL);
2516
2517     if (!ar) {
2518         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2519         return AVERROR(EINVAL);
2520     }
2521     frame_aspect_ratio = ar;
2522     return 0;
2523 }
2524
2525 static int opt_metadata(const char *opt, const char *arg)
2526 {
2527     char *mid= strchr(arg, '=');
2528
2529     if(!mid){
2530         fprintf(stderr, "Missing =\n");
2531         exit_program(1);
2532     }
2533     *mid++= 0;
2534
2535     av_dict_set(&metadata, arg, mid, 0);
2536
2537     return 0;
2538 }
2539
2540 static int opt_qscale(const char *opt, const char *arg)
2541 {
2542     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2543     if (video_qscale == 0) {
2544         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2545         return AVERROR(EINVAL);
2546     }
2547     return 0;
2548 }
2549
2550 static int opt_top_field_first(const char *opt, const char *arg)
2551 {
2552     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2553     return 0;
2554 }
2555
2556 static int opt_thread_count(const char *opt, const char *arg)
2557 {
2558     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2559 #if !HAVE_THREADS
2560     if (verbose >= 0)
2561         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2562 #endif
2563     return 0;
2564 }
2565
2566 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2567 {
2568     if (strcmp(arg, "list")) {
2569         audio_sample_fmt = av_get_sample_fmt(arg);
2570         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2571             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2572             return AVERROR(EINVAL);
2573         }
2574     } else {
2575         int i;
2576         char fmt_str[128];
2577         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2578             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2579         exit_program(0);
2580     }
2581     return 0;
2582 }
2583
2584 static int opt_audio_rate(const char *opt, const char *arg)
2585 {
2586     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2587     return 0;
2588 }
2589
2590 static int opt_audio_channels(const char *opt, const char *arg)
2591 {
2592     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2593     return 0;
2594 }
2595
2596 static int opt_codec(const char *opt, const char *arg)
2597 {
2598     return av_dict_set(&codec_names, opt, arg, 0);
2599 }
2600
2601 static int opt_audio_codec(const char *opt, const char *arg)
2602 {
2603     return opt_codec("codec:a", arg);
2604 }
2605
2606 static int opt_video_codec(const char *opt, const char *arg)
2607 {
2608     return opt_codec("codec:v", arg);
2609 }
2610
2611 static int opt_subtitle_codec(const char *opt, const char *arg)
2612 {
2613     return opt_codec("codec:s", arg);
2614 }
2615
2616 static int opt_data_codec(const char *opt, const char *arg)
2617 {
2618     return opt_codec("codec:d", arg);
2619 }
2620
2621 static int opt_codec_tag(const char *opt, const char *arg)
2622 {
2623     char *tail;
2624     uint32_t *codec_tag;
2625
2626     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2627                 !strcmp(opt, "vtag") ? &video_codec_tag :
2628                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2629     if (!codec_tag)
2630         return -1;
2631
2632     *codec_tag = strtol(arg, &tail, 0);
2633     if (!tail || *tail)
2634         *codec_tag = AV_RL32(arg);
2635
2636     return 0;
2637 }
2638
2639 static int opt_map(const char *opt, const char *arg)
2640 {
2641     StreamMap *m = NULL;
2642     int i, negative = 0, file_idx;
2643     int sync_file_idx = -1, sync_stream_idx;
2644     char *p, *sync;
2645     char *map;
2646
2647     if (*arg == '-') {
2648         negative = 1;
2649         arg++;
2650     }
2651     map = av_strdup(arg);
2652
2653     /* parse sync stream first, just pick first matching stream */
2654     if (sync = strchr(map, ',')) {
2655         *sync = 0;
2656         sync_file_idx = strtol(sync + 1, &sync, 0);
2657         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2658             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2659             exit_program(1);
2660         }
2661         if (*sync)
2662             sync++;
2663         for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2664             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2665                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2666                 sync_stream_idx = i;
2667                 break;
2668             }
2669         if (i == input_files[sync_file_idx].ctx->nb_streams) {
2670             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2671                                        "match any streams.\n", arg);
2672             exit_program(1);
2673         }
2674     }
2675
2676
2677     file_idx = strtol(map, &p, 0);
2678     if (file_idx >= nb_input_files || file_idx < 0) {
2679         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2680         exit_program(1);
2681     }
2682     if (negative)
2683         /* disable some already defined maps */
2684         for (i = 0; i < nb_stream_maps; i++) {
2685             m = &stream_maps[i];
2686             if (check_stream_specifier(input_files[m->file_index].ctx,
2687                                        input_files[m->file_index].ctx->streams[m->stream_index],
2688                                        *p == ':' ? p + 1 : p) > 0)
2689                 m->disabled = 1;
2690         }
2691     else
2692         for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2693             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2694                         *p == ':' ? p + 1 : p) <= 0)
2695                 continue;
2696             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2697             m = &stream_maps[nb_stream_maps - 1];
2698
2699             m->file_index   = file_idx;
2700             m->stream_index = i;
2701
2702             if (sync_file_idx >= 0) {
2703                 m->sync_file_index   = sync_file_idx;
2704                 m->sync_stream_index = sync_stream_idx;
2705             } else {
2706                 m->sync_file_index   = file_idx;
2707                 m->sync_stream_index = i;
2708             }
2709         }
2710
2711     if (!m) {
2712         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2713         exit_program(1);
2714     }
2715
2716     av_freep(&map);
2717     return 0;
2718 }
2719
2720 static void parse_meta_type(char *arg, char *type, int *index)
2721 {
2722     if (*arg == ':') {
2723         *type = *(++arg);
2724         switch (*arg) {
2725         case 'g':
2726             break;
2727         case 's':
2728         case 'c':
2729         case 'p':
2730             if (*(++arg) == ':')
2731                 *index = strtol(++arg, NULL, 0);
2732             break;
2733         default:
2734             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2735             exit_program(1);
2736         }
2737     } else
2738         *type = 'g';
2739 }
2740
2741 static int opt_map_metadata(const char *opt, const char *arg)
2742 {
2743     MetadataMap *m, *m1;
2744     char *p;
2745
2746     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2747                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2748
2749     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2750     m->file = strtol(arg, &p, 0);
2751     parse_meta_type(p, &m->type, &m->index);
2752
2753     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2754     if (p = strchr(opt, ':'))
2755         parse_meta_type(p, &m1->type, &m1->index);
2756     else
2757         m1->type = 'g';
2758
2759     if (m->type == 'g' || m1->type == 'g')
2760         metadata_global_autocopy = 0;
2761     if (m->type == 's' || m1->type == 's')
2762         metadata_streams_autocopy = 0;
2763     if (m->type == 'c' || m1->type == 'c')
2764         metadata_chapters_autocopy = 0;
2765
2766     return 0;
2767 }
2768
2769 static int opt_input_ts_scale(const char *opt, const char *arg)
2770 {
2771     return av_dict_set(&ts_scale, opt, arg, 0);
2772 }
2773
2774 static int opt_recording_time(const char *opt, const char *arg)
2775 {
2776     recording_time = parse_time_or_die(opt, arg, 1);
2777     return 0;
2778 }
2779
2780 static int opt_start_time(const char *opt, const char *arg)
2781 {
2782     start_time = parse_time_or_die(opt, arg, 1);
2783     return 0;
2784 }
2785
2786 static int opt_input_ts_offset(const char *opt, const char *arg)
2787 {
2788     input_ts_offset = parse_time_or_die(opt, arg, 1);
2789     return 0;
2790 }
2791
2792 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2793 {
2794     const char *codec_string = encoder ? "encoder" : "decoder";
2795     AVCodec *codec;
2796
2797     if(!name)
2798         return CODEC_ID_NONE;
2799     codec = encoder ?
2800         avcodec_find_encoder_by_name(name) :
2801         avcodec_find_decoder_by_name(name);
2802     if(!codec) {
2803         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2804         exit_program(1);
2805     }
2806     if(codec->type != type) {
2807         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2808         exit_program(1);
2809     }
2810     return codec->id;
2811 }
2812
2813 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2814 {
2815     AVDictionaryEntry *e = NULL;
2816     char *codec_name = NULL;
2817     int ret;
2818
2819     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2820         char *p = strchr(e->key, ':');
2821
2822         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2823             codec_name = e->value;
2824         else if (ret < 0)
2825             exit_program(1);
2826     }
2827
2828     if (!codec_name) {
2829         if (s->oformat) {
2830             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2831             return avcodec_find_encoder(st->codec->codec_id);
2832         }
2833     } else if (!strcmp(codec_name, "copy"))
2834         st->stream_copy = 1;
2835     else {
2836         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2837         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2838                             avcodec_find_decoder_by_name(codec_name);
2839     }
2840
2841     return NULL;
2842 }
2843
2844 /**
2845  * Add all the streams from the given input file to the global
2846  * list of input streams.
2847  */
2848 static void add_input_streams(AVFormatContext *ic)
2849 {
2850     int i, rfps, rfps_base, ret;
2851
2852     for (i = 0; i < ic->nb_streams; i++) {
2853         AVStream *st = ic->streams[i];
2854         AVCodecContext *dec = st->codec;
2855         AVDictionaryEntry *e = NULL;
2856         InputStream *ist;
2857         char *scale = NULL;
2858
2859         dec->thread_count = thread_count;
2860
2861         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2862         ist = &input_streams[nb_input_streams - 1];
2863         ist->st = st;
2864         ist->file_index = nb_input_files;
2865         ist->discard = 1;
2866         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2867
2868         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2869             char *p = strchr(e->key, ':');
2870
2871             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2872                 scale = e->value;
2873             else if (ret < 0)
2874                 exit_program(1);
2875         }
2876         if (scale)
2877             ist->ts_scale = strtod(scale, NULL);
2878
2879         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2880
2881         switch (dec->codec_type) {
2882         case AVMEDIA_TYPE_AUDIO:
2883             if(audio_disable)
2884                 st->discard= AVDISCARD_ALL;
2885             break;
2886         case AVMEDIA_TYPE_VIDEO:
2887             rfps      = ic->streams[i]->r_frame_rate.num;
2888             rfps_base = ic->streams[i]->r_frame_rate.den;
2889             if (dec->lowres) {
2890                 dec->flags |= CODEC_FLAG_EMU_EDGE;
2891                 dec->height >>= dec->lowres;
2892                 dec->width  >>= dec->lowres;
2893             }
2894             if(me_threshold)
2895                 dec->debug |= FF_DEBUG_MV;
2896
2897             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2898
2899                 if (verbose >= 0)
2900                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2901                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2902
2903                     (float)rfps / rfps_base, rfps, rfps_base);
2904             }
2905
2906             if(video_disable)
2907                 st->discard= AVDISCARD_ALL;
2908             else if(video_discard)
2909                 st->discard= video_discard;
2910             break;
2911         case AVMEDIA_TYPE_DATA:
2912             break;
2913         case AVMEDIA_TYPE_SUBTITLE:
2914             if(subtitle_disable)
2915                 st->discard = AVDISCARD_ALL;
2916             break;
2917         case AVMEDIA_TYPE_ATTACHMENT:
2918         case AVMEDIA_TYPE_UNKNOWN:
2919             break;
2920         default:
2921             abort();
2922         }
2923     }
2924 }
2925
2926 static int opt_input_file(const char *opt, const char *filename)
2927 {
2928     AVFormatContext *ic;
2929     AVInputFormat *file_iformat = NULL;
2930     int err, i, ret;
2931     int64_t timestamp;
2932     uint8_t buf[128];
2933     AVDictionary **opts;
2934     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
2935
2936     if (last_asked_format) {
2937         if (!(file_iformat = av_find_input_format(last_asked_format))) {
2938             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2939             exit_program(1);
2940         }
2941         last_asked_format = NULL;
2942     }
2943
2944     if (!strcmp(filename, "-"))
2945         filename = "pipe:";
2946
2947     using_stdin |= !strncmp(filename, "pipe:", 5) ||
2948                     !strcmp(filename, "/dev/stdin");
2949
2950     /* get default parameters from command line */
2951     ic = avformat_alloc_context();
2952     if (!ic) {
2953         print_error(filename, AVERROR(ENOMEM));
2954         exit_program(1);
2955     }
2956     if (audio_sample_rate) {
2957         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2958         av_dict_set(&format_opts, "sample_rate", buf, 0);
2959     }
2960     if (audio_channels) {
2961         snprintf(buf, sizeof(buf), "%d", audio_channels);
2962         av_dict_set(&format_opts, "channels", buf, 0);
2963     }
2964     if (frame_rate.num) {
2965         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2966         av_dict_set(&format_opts, "framerate", buf, 0);
2967     }
2968     if (frame_width && frame_height) {
2969         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2970         av_dict_set(&format_opts, "video_size", buf, 0);
2971     }
2972     if (frame_pix_fmt != PIX_FMT_NONE)
2973         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2974
2975     ic->flags |= AVFMT_FLAG_NONBLOCK;
2976
2977     /* open the input file with generic libav function */
2978     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2979     if (err < 0) {
2980         print_error(filename, err);
2981         exit_program(1);
2982     }
2983     assert_avoptions(format_opts);
2984
2985     if(opt_programid) {
2986         int i, j;
2987         int found=0;
2988         for(i=0; i<ic->nb_streams; i++){
2989             ic->streams[i]->discard= AVDISCARD_ALL;
2990         }
2991         for(i=0; i<ic->nb_programs; i++){
2992             AVProgram *p= ic->programs[i];
2993             if(p->id != opt_programid){
2994                 p->discard = AVDISCARD_ALL;
2995             }else{
2996                 found=1;
2997                 for(j=0; j<p->nb_stream_indexes; j++){
2998                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2999                 }
3000             }
3001         }
3002         if(!found){
3003             fprintf(stderr, "Specified program id not found\n");
3004             exit_program(1);
3005         }
3006         opt_programid=0;
3007     }
3008
3009     /* apply forced codec ids */
3010     for (i = 0; i < ic->nb_streams; i++)
3011         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3012
3013     /* Set AVCodecContext options for avformat_find_stream_info */
3014     opts = setup_find_stream_info_opts(ic, codec_opts);
3015     orig_nb_streams = ic->nb_streams;
3016
3017     /* If not enough info to get the stream parameters, we decode the
3018        first frames to get it. (used in mpeg case for example) */
3019     ret = avformat_find_stream_info(ic, opts);
3020     if (ret < 0 && verbose >= 0) {
3021         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3022         av_close_input_file(ic);
3023         exit_program(1);
3024     }
3025
3026     timestamp = start_time;
3027     /* add the stream start time */
3028     if (ic->start_time != AV_NOPTS_VALUE)
3029         timestamp += ic->start_time;
3030
3031     /* if seeking requested, we execute it */
3032     if (start_time != 0) {
3033         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3034         if (ret < 0) {
3035             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3036                     filename, (double)timestamp / AV_TIME_BASE);
3037         }
3038         /* reset seek info */
3039         start_time = 0;
3040     }
3041
3042     /* update the current parameters so that they match the one of the input stream */
3043     add_input_streams(ic);
3044
3045     /* dump the file content */
3046     if (verbose >= 0)
3047         av_dump_format(ic, nb_input_files, filename, 0);
3048
3049     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3050     input_files[nb_input_files - 1].ctx        = ic;
3051     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3052     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3053
3054     frame_rate    = (AVRational){0, 0};
3055     frame_pix_fmt = PIX_FMT_NONE;
3056     frame_height = 0;
3057     frame_width  = 0;
3058     audio_sample_rate = 0;
3059     audio_channels    = 0;
3060     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3061     av_dict_free(&ts_scale);
3062
3063     for (i = 0; i < orig_nb_streams; i++)
3064         av_dict_free(&opts[i]);
3065     av_freep(&opts);
3066     av_dict_free(&codec_names);
3067     uninit_opts();
3068     init_opts();
3069     return 0;
3070 }
3071
3072 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3073                                     AVCodecContext *avctx)
3074 {
3075     char *p;
3076     int n = 1, i;
3077     int64_t t;
3078
3079     for (p = kf; *p; p++)
3080         if (*p == ',')
3081             n++;
3082     ost->forced_kf_count = n;
3083     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3084     if (!ost->forced_kf_pts) {
3085         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3086         exit_program(1);
3087     }
3088     for (i = 0; i < n; i++) {
3089         p = i ? strchr(p, ',') + 1 : kf;
3090         t = parse_time_or_die("force_key_frames", p, 1);
3091         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3092     }
3093 }
3094
3095 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3096 {
3097     OutputStream *ost;
3098     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3099     int idx      = oc->nb_streams - 1;
3100
3101     if (!st) {
3102         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3103         exit_program(1);
3104     }
3105
3106     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3107                                 nb_output_streams + 1);
3108     ost = &output_streams[nb_output_streams - 1];
3109     ost->file_index = nb_output_files;
3110     ost->index = idx;
3111     ost->st    = st;
3112     st->codec->codec_type = type;
3113     ost->enc = choose_codec(oc, st, type, codec_names);
3114     if (ost->enc) {
3115         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3116     }
3117
3118     avcodec_get_context_defaults3(st->codec, ost->enc);
3119     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3120
3121     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3122     return ost;
3123 }
3124
3125 static OutputStream *new_video_stream(AVFormatContext *oc)
3126 {
3127     AVStream *st;
3128     OutputStream *ost;
3129     AVCodecContext *video_enc;
3130
3131     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3132     st  = ost->st;
3133     if (!st->stream_copy) {
3134         ost->frame_aspect_ratio = frame_aspect_ratio;
3135         frame_aspect_ratio = 0;
3136 #if CONFIG_AVFILTER
3137         ost->avfilter= vfilters;
3138         vfilters = NULL;
3139 #endif
3140     }
3141
3142     ost->bitstream_filters = video_bitstream_filters;
3143     video_bitstream_filters= NULL;
3144
3145     st->codec->thread_count= thread_count;
3146
3147     video_enc = st->codec;
3148
3149     if(video_codec_tag)
3150         video_enc->codec_tag= video_codec_tag;
3151
3152     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3153         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3154     }
3155
3156     if (st->stream_copy) {
3157         video_enc->sample_aspect_ratio =
3158         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3159     } else {
3160         const char *p;
3161         int i;
3162
3163         if (frame_rate.num)
3164             ost->frame_rate = frame_rate;
3165
3166         video_enc->width = frame_width;
3167         video_enc->height = frame_height;
3168         video_enc->pix_fmt = frame_pix_fmt;
3169         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3170
3171         if (intra_only)
3172             video_enc->gop_size = 0;
3173         if (video_qscale || same_quant) {
3174             video_enc->flags |= CODEC_FLAG_QSCALE;
3175             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3176         }
3177
3178         if(intra_matrix)
3179             video_enc->intra_matrix = intra_matrix;
3180         if(inter_matrix)
3181             video_enc->inter_matrix = inter_matrix;
3182
3183         p= video_rc_override_string;
3184         for(i=0; p; i++){
3185             int start, end, q;
3186             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3187             if(e!=3){
3188                 fprintf(stderr, "error parsing rc_override\n");
3189                 exit_program(1);
3190             }
3191             video_enc->rc_override=
3192                 av_realloc(video_enc->rc_override,
3193                            sizeof(RcOverride)*(i+1));
3194             video_enc->rc_override[i].start_frame= start;
3195             video_enc->rc_override[i].end_frame  = end;
3196             if(q>0){
3197                 video_enc->rc_override[i].qscale= q;
3198                 video_enc->rc_override[i].quality_factor= 1.0;
3199             }
3200             else{
3201                 video_enc->rc_override[i].qscale= 0;
3202                 video_enc->rc_override[i].quality_factor= -q/100.0;
3203             }
3204             p= strchr(p, '/');
3205             if(p) p++;
3206         }
3207         video_enc->rc_override_count=i;
3208         if (!video_enc->rc_initial_buffer_occupancy)
3209             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3210         video_enc->me_threshold= me_threshold;
3211         video_enc->intra_dc_precision= intra_dc_precision - 8;
3212
3213         if (do_psnr)
3214             video_enc->flags|= CODEC_FLAG_PSNR;
3215
3216         /* two pass mode */
3217         if (do_pass) {
3218             if (do_pass == 1) {
3219                 video_enc->flags |= CODEC_FLAG_PASS1;
3220             } else {
3221                 video_enc->flags |= CODEC_FLAG_PASS2;
3222             }
3223         }
3224
3225         if (forced_key_frames)
3226             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3227     }
3228     if (video_language) {
3229         av_dict_set(&st->metadata, "language", video_language, 0);
3230         av_freep(&video_language);
3231     }
3232
3233     /* reset some key parameters */
3234     video_disable = 0;
3235     av_freep(&forced_key_frames);
3236     frame_pix_fmt = PIX_FMT_NONE;
3237     return ost;
3238 }
3239
3240 static OutputStream *new_audio_stream(AVFormatContext *oc)
3241 {
3242     AVStream *st;
3243     OutputStream *ost;
3244     AVCodecContext *audio_enc;
3245
3246     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3247     st  = ost->st;
3248
3249     ost->bitstream_filters = audio_bitstream_filters;
3250     audio_bitstream_filters= NULL;
3251
3252     st->codec->thread_count= thread_count;
3253
3254     audio_enc = st->codec;
3255     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3256
3257     if(audio_codec_tag)
3258         audio_enc->codec_tag= audio_codec_tag;
3259
3260     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3261         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3262     }
3263     if (!st->stream_copy) {
3264         if (audio_qscale > QSCALE_NONE) {
3265             audio_enc->flags |= CODEC_FLAG_QSCALE;
3266             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3267         }
3268         if (audio_channels)
3269             audio_enc->channels = audio_channels;
3270         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3271             audio_enc->sample_fmt = audio_sample_fmt;
3272         if (audio_sample_rate)
3273             audio_enc->sample_rate = audio_sample_rate;
3274     }
3275     if (audio_language) {
3276         av_dict_set(&st->metadata, "language", audio_language, 0);
3277         av_freep(&audio_language);
3278     }
3279
3280     /* reset some key parameters */
3281     audio_disable = 0;
3282
3283     return ost;
3284 }
3285
3286 static OutputStream *new_data_stream(AVFormatContext *oc)
3287 {
3288     AVStream *st;
3289     OutputStream *ost;
3290     AVCodecContext *data_enc;
3291
3292     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3293     st  = ost->st;
3294     data_enc = st->codec;
3295     if (!st->stream_copy) {
3296         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3297         exit_program(1);
3298     }
3299
3300     if (data_codec_tag)
3301         data_enc->codec_tag= data_codec_tag;
3302
3303     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3304         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3305     }
3306
3307     data_disable = 0;
3308     return ost;
3309 }
3310
3311 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3312 {
3313     AVStream *st;
3314     OutputStream *ost;
3315     AVCodecContext *subtitle_enc;
3316
3317     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3318     st  = ost->st;
3319     subtitle_enc = st->codec;
3320
3321     ost->bitstream_filters = subtitle_bitstream_filters;
3322     subtitle_bitstream_filters= NULL;
3323
3324     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3325
3326     if(subtitle_codec_tag)
3327         subtitle_enc->codec_tag= subtitle_codec_tag;
3328
3329     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3330         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3331     }
3332
3333     if (subtitle_language) {
3334         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3335         av_freep(&subtitle_language);
3336     }
3337
3338     subtitle_disable = 0;
3339     return ost;
3340 }
3341
3342 /* arg format is "output-stream-index:streamid-value". */
3343 static int opt_streamid(const char *opt, const char *arg)
3344 {
3345     int idx;
3346     char *p;
3347     char idx_str[16];
3348
3349     av_strlcpy(idx_str, arg, sizeof(idx_str));
3350     p = strchr(idx_str, ':');
3351     if (!p) {
3352         fprintf(stderr,
3353                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3354                 arg, opt);
3355         exit_program(1);
3356     }
3357     *p++ = '\0';
3358     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3359     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3360     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3361     return 0;
3362 }
3363
3364 static int copy_chapters(int infile, int outfile)
3365 {
3366     AVFormatContext *is = input_files[infile].ctx;
3367     AVFormatContext *os = output_files[outfile].ctx;
3368     int i;
3369
3370     for (i = 0; i < is->nb_chapters; i++) {
3371         AVChapter *in_ch = is->chapters[i], *out_ch;
3372         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3373                                       AV_TIME_BASE_Q, in_ch->time_base);
3374         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3375                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3376
3377
3378         if (in_ch->end < ts_off)
3379             continue;
3380         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3381             break;
3382
3383         out_ch = av_mallocz(sizeof(AVChapter));
3384         if (!out_ch)
3385             return AVERROR(ENOMEM);
3386
3387         out_ch->id        = in_ch->id;
3388         out_ch->time_base = in_ch->time_base;
3389         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3390         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3391
3392         if (metadata_chapters_autocopy)
3393             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3394
3395         os->nb_chapters++;
3396         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3397         if (!os->chapters)
3398             return AVERROR(ENOMEM);
3399         os->chapters[os->nb_chapters - 1] = out_ch;
3400     }
3401     return 0;
3402 }
3403
3404 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3405 {
3406     int i, err;
3407     AVFormatContext *ic = NULL;
3408
3409     err = avformat_open_input(&ic, filename, NULL, NULL);
3410     if (err < 0)
3411         return err;
3412     /* copy stream format */
3413     for(i=0;i<ic->nb_streams;i++) {
3414         AVStream *st;
3415         OutputStream *ost;
3416         AVCodec *codec;
3417
3418         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3419         ost   = new_output_stream(s, codec->type);
3420         st    = ost->st;
3421
3422         // FIXME: a more elegant solution is needed
3423         memcpy(st, ic->streams[i], sizeof(AVStream));
3424         st->info = NULL;
3425         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3426
3427         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3428             choose_sample_fmt(st, codec);
3429         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3430             choose_pixel_fmt(st, codec);
3431     }
3432
3433     av_close_input_file(ic);
3434     return 0;
3435 }
3436
3437 static void opt_output_file(const char *filename)
3438 {
3439     AVFormatContext *oc;
3440     int i, err;
3441     AVOutputFormat *file_oformat;
3442     OutputStream *ost;
3443     InputStream  *ist;
3444
3445     if (!strcmp(filename, "-"))
3446         filename = "pipe:";
3447
3448     oc = avformat_alloc_context();
3449     if (!oc) {
3450         print_error(filename, AVERROR(ENOMEM));
3451         exit_program(1);
3452     }
3453
3454     if (last_asked_format) {
3455         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3456         if (!file_oformat) {
3457             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3458             exit_program(1);
3459         }
3460         last_asked_format = NULL;
3461     } else {
3462         file_oformat = av_guess_format(NULL, filename, NULL);
3463         if (!file_oformat) {
3464             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3465                     filename);
3466             exit_program(1);
3467         }
3468     }
3469
3470     oc->oformat = file_oformat;
3471     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3472
3473     if (!strcmp(file_oformat->name, "ffm") &&
3474         av_strstart(filename, "http:", NULL)) {
3475         /* special case for files sent to avserver: we get the stream
3476            parameters from avserver */
3477         int err = read_avserver_streams(oc, filename);
3478         if (err < 0) {
3479             print_error(filename, err);
3480             exit_program(1);
3481         }
3482     } else if (!nb_stream_maps) {
3483         /* pick the "best" stream of each type */
3484 #define NEW_STREAM(type, index)\
3485         if (index >= 0) {\
3486             ost = new_ ## type ## _stream(oc);\
3487             ost->source_index = index;\
3488             ost->sync_ist     = &input_streams[index];\
3489             input_streams[index].discard = 0;\
3490         }
3491
3492         /* video: highest resolution */
3493         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3494             int area = 0, idx = -1;
3495             for (i = 0; i < nb_input_streams; i++) {
3496                 ist = &input_streams[i];
3497                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3498                     ist->st->codec->width * ist->st->codec->height > area) {
3499                     area = ist->st->codec->width * ist->st->codec->height;
3500                     idx = i;
3501                 }
3502             }
3503             NEW_STREAM(video, idx);
3504         }
3505
3506         /* audio: most channels */
3507         if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3508             int channels = 0, idx = -1;
3509             for (i = 0; i < nb_input_streams; i++) {
3510                 ist = &input_streams[i];
3511                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3512                     ist->st->codec->channels > channels) {
3513                     channels = ist->st->codec->channels;
3514                     idx = i;
3515                 }
3516             }
3517             NEW_STREAM(audio, idx);
3518         }
3519
3520         /* subtitles: pick first */
3521         if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3522             for (i = 0; i < nb_input_streams; i++)
3523                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3524                     NEW_STREAM(subtitle, i);
3525                     break;
3526                 }
3527         }
3528         /* do something with data? */
3529     } else {
3530         for (i = 0; i < nb_stream_maps; i++) {
3531             StreamMap *map = &stream_maps[i];
3532
3533             if (map->disabled)
3534                 continue;
3535
3536             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3537             switch (ist->st->codec->codec_type) {
3538             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(oc);    break;
3539             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(oc);    break;
3540             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3541             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(oc);     break;
3542             default:
3543                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3544                        map->file_index, map->stream_index);
3545                 exit_program(1);
3546             }
3547
3548             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3549             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3550                                            map->sync_stream_index];
3551             ist->discard = 0;
3552         }
3553     }
3554
3555     av_dict_copy(&oc->metadata, metadata, 0);
3556     av_dict_free(&metadata);
3557
3558
3559     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3560     output_files[nb_output_files - 1].ctx       = oc;
3561     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3562     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3563
3564     /* check filename in case of an image number is expected */
3565     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3566         if (!av_filename_number_test(oc->filename)) {
3567             print_error(oc->filename, AVERROR(EINVAL));
3568             exit_program(1);
3569         }
3570     }
3571
3572     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3573         /* test if it already exists to avoid loosing precious files */
3574         if (!file_overwrite &&
3575             (strchr(filename, ':') == NULL ||
3576              filename[1] == ':' ||
3577              av_strstart(filename, "file:", NULL))) {
3578             if (avio_check(filename, 0) == 0) {
3579                 if (!using_stdin) {
3580                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3581                     fflush(stderr);
3582                     if (!read_yesno()) {
3583                         fprintf(stderr, "Not overwriting - exiting\n");
3584                         exit_program(1);
3585                     }
3586                 }
3587                 else {
3588                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3589                     exit_program(1);
3590                 }
3591             }
3592         }
3593
3594         /* open the file */
3595         if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3596             print_error(filename, err);
3597             exit_program(1);
3598         }
3599     }
3600
3601     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3602     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3603     oc->flags |= AVFMT_FLAG_NONBLOCK;
3604
3605     /* copy chapters */
3606     if (chapters_input_file >= nb_input_files) {
3607         if (chapters_input_file == INT_MAX) {
3608             /* copy chapters from the first input file that has them*/
3609             chapters_input_file = -1;
3610             for (i = 0; i < nb_input_files; i++)
3611                 if (input_files[i].ctx->nb_chapters) {
3612                     chapters_input_file = i;
3613                     break;
3614                 }
3615         } else {
3616             av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3617                    chapters_input_file);
3618             exit_program(1);
3619         }
3620     }
3621     if (chapters_input_file >= 0)
3622         copy_chapters(chapters_input_file, nb_output_files - 1);
3623
3624     /* copy metadata */
3625     for (i = 0; i < nb_meta_data_maps; i++) {
3626         AVFormatContext *files[2];
3627         AVDictionary    **meta[2];
3628         int j;
3629
3630 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3631         if ((index) < 0 || (index) >= (nb_elems)) {\
3632             av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3633                      (desc), (index));\
3634             exit_program(1);\
3635         }
3636
3637         int in_file_index = meta_data_maps[i][1].file;
3638         if (in_file_index < 0)
3639             continue;
3640         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3641
3642         files[0] = oc;
3643         files[1] = input_files[in_file_index].ctx;
3644
3645         for (j = 0; j < 2; j++) {
3646             MetadataMap *map = &meta_data_maps[i][j];
3647
3648             switch (map->type) {
3649             case 'g':
3650                 meta[j] = &files[j]->metadata;
3651                 break;
3652             case 's':
3653                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3654                 meta[j] = &files[j]->streams[map->index]->metadata;
3655                 break;
3656             case 'c':
3657                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapt