Replace usages of av_get_bits_per_sample_fmt() with av_get_bytes_per_sample().
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
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/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavformat/os_support.h"
47
48 #if CONFIG_AVFILTER
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #include <time.h>
71
72 #include "cmdutils.h"
73
74 #include "libavutil/avassert.h"
75
76 const char program_name[] = "ffmpeg";
77 const int program_birth_year = 2000;
78
79 /* select an input stream for an output stream */
80 typedef struct AVStreamMap {
81     int file_index;
82     int stream_index;
83     int sync_file_index;
84     int sync_stream_index;
85 } AVStreamMap;
86
87 /**
88  * select an input file for an output file
89  */
90 typedef struct AVMetaDataMap {
91     int  file;      //< file index
92     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
93     int  index;     //< stream/chapter/program number
94 } AVMetaDataMap;
95
96 typedef struct AVChapterMap {
97     int in_file;
98     int out_file;
99 } AVChapterMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
105
106 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
107
108 static const char *last_asked_format = NULL;
109 static int64_t input_files_ts_offset[MAX_FILES];
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static AVCodec **input_codecs = NULL;
112 static int nb_input_codecs = 0;
113 static int nb_input_files_ts_scale[MAX_FILES] = {0};
114
115 static AVFormatContext *output_files[MAX_FILES];
116 static AVDictionary *output_opts[MAX_FILES];
117 static int nb_output_files = 0;
118
119 static AVStreamMap *stream_maps = NULL;
120 static int nb_stream_maps;
121
122 /* first item specifies output metadata, second is input */
123 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
124 static int nb_meta_data_maps;
125 static int metadata_global_autocopy   = 1;
126 static int metadata_streams_autocopy  = 1;
127 static int metadata_chapters_autocopy = 1;
128
129 static AVChapterMap *chapter_maps = NULL;
130 static int nb_chapter_maps;
131
132 /* indexed by output file stream index */
133 static int *streamid_map = NULL;
134 static int nb_streamid_map = 0;
135
136 static int frame_width  = 0;
137 static int frame_height = 0;
138 static float frame_aspect_ratio = 0;
139 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
140 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
141 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
142 static AVRational frame_rate;
143 static float video_qscale = 0;
144 static uint16_t *intra_matrix = NULL;
145 static uint16_t *inter_matrix = NULL;
146 static const char *video_rc_override_string=NULL;
147 static int video_disable = 0;
148 static int video_discard = 0;
149 static char *video_codec_name = NULL;
150 static unsigned int video_codec_tag = 0;
151 static char *video_language = NULL;
152 static int same_quality = 0;
153 static int do_deinterlace = 0;
154 static int top_field_first = -1;
155 static int me_threshold = 0;
156 static int intra_dc_precision = 8;
157 static int loop_input = 0;
158 static int loop_output = AVFMT_NOOUTPUTLOOP;
159 static int qp_hist = 0;
160 #if CONFIG_AVFILTER
161 static char *vfilters = NULL;
162 #endif
163
164 static int intra_only = 0;
165 static int audio_sample_rate = 0;
166 static int64_t channel_layout = 0;
167 #define QSCALE_NONE -99999
168 static float audio_qscale = QSCALE_NONE;
169 static int audio_disable = 0;
170 static int audio_channels = 0;
171 static char  *audio_codec_name = NULL;
172 static unsigned int audio_codec_tag = 0;
173 static char *audio_language = NULL;
174
175 static int subtitle_disable = 0;
176 static char *subtitle_codec_name = NULL;
177 static char *subtitle_language = NULL;
178 static unsigned int subtitle_codec_tag = 0;
179
180 static int data_disable = 0;
181 static char *data_codec_name = NULL;
182 static unsigned int data_codec_tag = 0;
183
184 static float mux_preload= 0.5;
185 static float mux_max_delay= 0.7;
186
187 static int64_t recording_time = INT64_MAX;
188 static int64_t start_time = 0;
189 static int64_t recording_timestamp = 0;
190 static int64_t input_ts_offset = 0;
191 static int file_overwrite = 0;
192 static AVDictionary *metadata;
193 static int do_benchmark = 0;
194 static int do_hex_dump = 0;
195 static int do_pkt_dump = 0;
196 static int do_psnr = 0;
197 static int do_pass = 0;
198 static char *pass_logfilename_prefix = NULL;
199 static int audio_stream_copy = 0;
200 static int video_stream_copy = 0;
201 static int subtitle_stream_copy = 0;
202 static int data_stream_copy = 0;
203 static int video_sync_method= -1;
204 static int audio_sync_method= 0;
205 static float audio_drift_threshold= 0.1;
206 static int copy_ts= 0;
207 static int copy_tb;
208 static int opt_shortest = 0;
209 static char *vstats_filename;
210 static FILE *vstats_file;
211 static int opt_programid = 0;
212 static int copy_initial_nonkeyframes = 0;
213
214 static int rate_emu = 0;
215
216 static int audio_volume = 256;
217
218 static int exit_on_error = 0;
219 static int using_stdin = 0;
220 static int verbose = 1;
221 static int thread_count= 1;
222 static int64_t video_size = 0;
223 static int64_t audio_size = 0;
224 static int64_t extra_size = 0;
225 static int nb_frames_dup = 0;
226 static int nb_frames_drop = 0;
227 static int input_sync;
228 static uint64_t limit_filesize = 0;
229 static int force_fps = 0;
230 static char *forced_key_frames = NULL;
231
232 static float dts_delta_threshold = 10;
233
234 static int64_t timer_start;
235
236 static uint8_t *audio_buf;
237 static uint8_t *audio_out;
238 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
239
240 static short *samples;
241
242 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
243 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
245
246 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
247
248 struct AVInputStream;
249
250 typedef struct AVOutputStream {
251     int file_index;          /* file index */
252     int index;               /* stream index in the output file */
253     int source_index;        /* AVInputStream index */
254     AVStream *st;            /* stream in the output file */
255     int encoding_needed;     /* true if encoding needed for this stream */
256     int frame_number;
257     /* input pts and corresponding output pts
258        for A/V sync */
259     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
260     struct AVInputStream *sync_ist; /* input stream to sync against */
261     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
262     AVBitStreamFilterContext *bitstream_filters;
263     AVCodec *enc;
264
265     /* video only */
266     int video_resample;
267     AVFrame pict_tmp;      /* temporary image for resampling */
268     struct SwsContext *img_resample_ctx; /* for image resampling */
269     int resample_height;
270     int resample_width;
271     int resample_pix_fmt;
272     AVRational frame_rate;
273
274     float frame_aspect_ratio;
275
276     /* forced key frames */
277     int64_t *forced_kf_pts;
278     int forced_kf_count;
279     int forced_kf_index;
280
281     /* audio only */
282     int audio_resample;
283     ReSampleContext *resample; /* for audio resampling */
284     int resample_sample_fmt;
285     int resample_channels;
286     int resample_sample_rate;
287     int reformat_pair;
288     AVAudioConvert *reformat_ctx;
289     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
290     FILE *logfile;
291
292 #if CONFIG_AVFILTER
293     AVFilterContext *output_video_filter;
294     AVFilterContext *input_video_filter;
295     AVFilterBufferRef *picref;
296     char *avfilter;
297     AVFilterGraph *graph;
298 #endif
299
300    int sws_flags;
301 } AVOutputStream;
302
303 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
304 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
305
306 typedef struct AVInputStream {
307     int file_index;
308     AVStream *st;
309     int discard;             /* true if stream data should be discarded */
310     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
311     int64_t sample_index;      /* current sample */
312
313     int64_t       start;     /* time when read started */
314     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
315                                 is not defined */
316     int64_t       pts;       /* current pts */
317     PtsCorrectionContext pts_ctx;
318     int is_start;            /* is 1 at the start and after a discontinuity */
319     int showed_multi_packet_warning;
320     int is_past_recording_time;
321 #if CONFIG_AVFILTER
322     AVFrame *filter_frame;
323     int has_filter_frame;
324 #endif
325 } AVInputStream;
326
327 typedef struct AVInputFile {
328     AVFormatContext *ctx;
329     int eof_reached;      /* true if eof reached */
330     int ist_index;        /* index of first stream in ist_table */
331     int buffer_size;      /* current total buffer size */
332 } AVInputFile;
333
334 static AVInputStream *input_streams = NULL;
335 static int         nb_input_streams = 0;
336 static AVInputFile   *input_files   = NULL;
337 static int         nb_input_files   = 0;
338
339 #if CONFIG_AVFILTER
340
341 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
342 {
343     AVFilterContext *last_filter, *filter;
344     /** filter graph containing all filters including input & output */
345     AVCodecContext *codec = ost->st->codec;
346     AVCodecContext *icodec = ist->st->codec;
347     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
348     AVRational sample_aspect_ratio;
349     char args[255];
350     int ret;
351
352     ost->graph = avfilter_graph_alloc();
353
354     if (ist->st->sample_aspect_ratio.num){
355         sample_aspect_ratio = ist->st->sample_aspect_ratio;
356     }else
357         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
358
359     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
360              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
361              sample_aspect_ratio.num, sample_aspect_ratio.den);
362
363     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
364                                        "src", args, NULL, ost->graph);
365     if (ret < 0)
366         return ret;
367     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
368                                        "out", NULL, &ffsink_ctx, ost->graph);
369     if (ret < 0)
370         return ret;
371     last_filter = ost->input_video_filter;
372
373     if (codec->width  != icodec->width || codec->height != icodec->height) {
374         snprintf(args, 255, "%d:%d:flags=0x%X",
375                  codec->width,
376                  codec->height,
377                  ost->sws_flags);
378         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
379                                                 NULL, args, NULL, ost->graph)) < 0)
380             return ret;
381         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
382             return ret;
383         last_filter = filter;
384     }
385
386     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
387     ost->graph->scale_sws_opts = av_strdup(args);
388
389     if (ost->avfilter) {
390         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
391         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
392
393         outputs->name    = av_strdup("in");
394         outputs->filter_ctx = last_filter;
395         outputs->pad_idx = 0;
396         outputs->next    = NULL;
397
398         inputs->name    = av_strdup("out");
399         inputs->filter_ctx = ost->output_video_filter;
400         inputs->pad_idx = 0;
401         inputs->next    = NULL;
402
403         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
404             return ret;
405         av_freep(&ost->avfilter);
406     } else {
407         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
408             return ret;
409     }
410
411     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
412         return ret;
413
414     codec->width  = ost->output_video_filter->inputs[0]->w;
415     codec->height = ost->output_video_filter->inputs[0]->h;
416     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
417         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
418         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
419         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
420
421     return 0;
422 }
423 #endif /* CONFIG_AVFILTER */
424
425 static void term_exit(void)
426 {
427     av_log(NULL, AV_LOG_QUIET, "");
428 }
429
430 static volatile int received_sigterm = 0;
431 static volatile int received_nb_signals = 0;
432
433 static void
434 sigterm_handler(int sig)
435 {
436     received_sigterm = sig;
437     received_nb_signals++;
438     term_exit();
439 }
440
441 static void term_init(void)
442 {
443     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
444     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
445 #ifdef SIGXCPU
446     signal(SIGXCPU, sigterm_handler);
447 #endif
448 }
449
450 static int decode_interrupt_cb(void)
451 {
452     return received_nb_signals > 1;
453 }
454
455 static int ffmpeg_exit(int ret)
456 {
457     int i;
458
459     /* close files */
460     for(i=0;i<nb_output_files;i++) {
461         AVFormatContext *s = output_files[i];
462         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
463             avio_close(s->pb);
464         avformat_free_context(s);
465         av_free(output_streams_for_file[i]);
466         av_dict_free(&output_opts[i]);
467     }
468     for(i=0;i<nb_input_files;i++) {
469         av_close_input_file(input_files[i].ctx);
470         av_free(input_files_ts_scale[i]);
471     }
472
473     av_free(intra_matrix);
474     av_free(inter_matrix);
475
476     if (vstats_file)
477         fclose(vstats_file);
478     av_free(vstats_filename);
479
480     av_free(streamid_map);
481     av_free(input_codecs);
482     av_free(stream_maps);
483     av_free(meta_data_maps);
484
485     av_freep(&input_streams);
486     av_freep(&input_files);
487
488     av_free(video_codec_name);
489     av_free(audio_codec_name);
490     av_free(subtitle_codec_name);
491     av_free(data_codec_name);
492
493     uninit_opts();
494     av_free(audio_buf);
495     av_free(audio_out);
496     allocated_audio_buf_size= allocated_audio_out_size= 0;
497     av_free(samples);
498
499 #if CONFIG_AVFILTER
500     avfilter_uninit();
501 #endif
502
503     if (received_sigterm) {
504         fprintf(stderr,
505             "Received signal %d: terminating.\n",
506             (int) received_sigterm);
507         exit (255);
508     }
509
510     exit(ret); /* not all OS-es handle main() return value */
511     return ret;
512 }
513
514 static void assert_avoptions(AVDictionary *m)
515 {
516     AVDictionaryEntry *t;
517     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
518         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
519         ffmpeg_exit(1);
520     }
521 }
522
523 /* similar to ff_dynarray_add() and av_fast_realloc() */
524 static void *grow_array(void *array, int elem_size, int *size, int new_size)
525 {
526     if (new_size >= INT_MAX / elem_size) {
527         fprintf(stderr, "Array too big.\n");
528         ffmpeg_exit(1);
529     }
530     if (*size < new_size) {
531         uint8_t *tmp = av_realloc(array, new_size*elem_size);
532         if (!tmp) {
533             fprintf(stderr, "Could not alloc buffer.\n");
534             ffmpeg_exit(1);
535         }
536         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
537         *size = new_size;
538         return tmp;
539     }
540     return array;
541 }
542
543 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
544 {
545     if(codec && codec->sample_fmts){
546         const enum AVSampleFormat *p= codec->sample_fmts;
547         for(; *p!=-1; p++){
548             if(*p == st->codec->sample_fmt)
549                 break;
550         }
551         if (*p == -1) {
552             av_log(NULL, AV_LOG_WARNING,
553                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
554                    av_get_sample_fmt_name(st->codec->sample_fmt),
555                    codec->name,
556                    av_get_sample_fmt_name(codec->sample_fmts[0]));
557             st->codec->sample_fmt = codec->sample_fmts[0];
558         }
559     }
560 }
561
562 /**
563  * Update the requested input sample format based on the output sample format.
564  * This is currently only used to request float output from decoders which
565  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
566  * Ideally this will be removed in the future when decoders do not do format
567  * conversion and only output in their native format.
568  */
569 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
570                               AVCodecContext *enc)
571 {
572     /* if sample formats match or a decoder sample format has already been
573        requested, just return */
574     if (enc->sample_fmt == dec->sample_fmt ||
575         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
576         return;
577
578     /* if decoder supports more than one output format */
579     if (dec_codec && dec_codec->sample_fmts &&
580         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
581         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
582         const enum AVSampleFormat *p;
583         int min_dec = -1, min_inc = -1;
584
585         /* find a matching sample format in the encoder */
586         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
587             if (*p == enc->sample_fmt) {
588                 dec->request_sample_fmt = *p;
589                 return;
590             } else if (*p > enc->sample_fmt) {
591                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
592             } else
593                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
594         }
595
596         /* if none match, provide the one that matches quality closest */
597         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
598                                   enc->sample_fmt - min_dec;
599     }
600 }
601
602 static void choose_sample_rate(AVStream *st, AVCodec *codec)
603 {
604     if(codec && codec->supported_samplerates){
605         const int *p= codec->supported_samplerates;
606         int best=0;
607         int best_dist=INT_MAX;
608         for(; *p; p++){
609             int dist= abs(st->codec->sample_rate - *p);
610             if(dist < best_dist){
611                 best_dist= dist;
612                 best= *p;
613             }
614         }
615         if(best_dist){
616             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
617         }
618         st->codec->sample_rate= best;
619     }
620 }
621
622 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
623 {
624     if(codec && codec->pix_fmts){
625         const enum PixelFormat *p= codec->pix_fmts;
626         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
627             if(st->codec->codec_id==CODEC_ID_MJPEG){
628                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
629             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
630                 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};
631             }
632         }
633         for(; *p!=-1; p++){
634             if(*p == st->codec->pix_fmt)
635                 break;
636         }
637         if (*p == -1) {
638             if(st->codec->pix_fmt != PIX_FMT_NONE)
639                 av_log(NULL, AV_LOG_WARNING,
640                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
641                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
642                         codec->name,
643                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
644             st->codec->pix_fmt = codec->pix_fmts[0];
645         }
646     }
647 }
648
649 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
650 {
651     int idx = oc->nb_streams - 1;
652     AVOutputStream *ost;
653
654     output_streams_for_file[file_idx] =
655         grow_array(output_streams_for_file[file_idx],
656                    sizeof(*output_streams_for_file[file_idx]),
657                    &nb_output_streams_for_file[file_idx],
658                    oc->nb_streams);
659     ost = output_streams_for_file[file_idx][idx] =
660         av_mallocz(sizeof(AVOutputStream));
661     if (!ost) {
662         fprintf(stderr, "Could not alloc output stream\n");
663         ffmpeg_exit(1);
664     }
665     ost->file_index = file_idx;
666     ost->index = idx;
667
668     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
669     return ost;
670 }
671
672 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
673 {
674     int i, err;
675     AVFormatContext *ic = NULL;
676     int nopts = 0;
677
678     err = avformat_open_input(&ic, filename, NULL, NULL);
679     if (err < 0)
680         return err;
681     /* copy stream format */
682     s->nb_streams = 0;
683     s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
684     for(i=0;i<ic->nb_streams;i++) {
685         AVStream *st;
686         AVCodec *codec;
687
688         s->nb_streams++;
689
690         // FIXME: a more elegant solution is needed
691         st = av_mallocz(sizeof(AVStream));
692         memcpy(st, ic->streams[i], sizeof(AVStream));
693         st->info = NULL;
694         st->codec = avcodec_alloc_context();
695         if (!st->codec) {
696             print_error(filename, AVERROR(ENOMEM));
697             ffmpeg_exit(1);
698         }
699         avcodec_copy_context(st->codec, ic->streams[i]->codec);
700         s->streams[i] = st;
701
702         codec = avcodec_find_encoder(st->codec->codec_id);
703         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
704             if (audio_stream_copy) {
705                 st->stream_copy = 1;
706             } else
707                 choose_sample_fmt(st, codec);
708         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
709             if (video_stream_copy) {
710                 st->stream_copy = 1;
711             } else
712                 choose_pixel_fmt(st, codec);
713         }
714
715         if(st->codec->flags & CODEC_FLAG_BITEXACT)
716             nopts = 1;
717
718         new_output_stream(s, nb_output_files);
719     }
720
721     if (!nopts)
722         s->timestamp = av_gettime();
723
724     av_close_input_file(ic);
725     return 0;
726 }
727
728 static double
729 get_sync_ipts(const AVOutputStream *ost)
730 {
731     const AVInputStream *ist = ost->sync_ist;
732     return (double)(ist->pts - start_time)/AV_TIME_BASE;
733 }
734
735 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
736     int ret;
737
738     while(bsfc){
739         AVPacket new_pkt= *pkt;
740         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
741                                           &new_pkt.data, &new_pkt.size,
742                                           pkt->data, pkt->size,
743                                           pkt->flags & AV_PKT_FLAG_KEY);
744         if(a>0){
745             av_free_packet(pkt);
746             new_pkt.destruct= av_destruct_packet;
747         } else if(a<0){
748             fprintf(stderr, "%s failed for stream %d, codec %s",
749                     bsfc->filter->name, pkt->stream_index,
750                     avctx->codec ? avctx->codec->name : "copy");
751             print_error("", a);
752             if (exit_on_error)
753                 ffmpeg_exit(1);
754         }
755         *pkt= new_pkt;
756
757         bsfc= bsfc->next;
758     }
759
760     ret= av_interleaved_write_frame(s, pkt);
761     if(ret < 0){
762         print_error("av_interleaved_write_frame()", ret);
763         ffmpeg_exit(1);
764     }
765 }
766
767 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
768
769 static void do_audio_out(AVFormatContext *s,
770                          AVOutputStream *ost,
771                          AVInputStream *ist,
772                          unsigned char *buf, int size)
773 {
774     uint8_t *buftmp;
775     int64_t audio_out_size, audio_buf_size;
776     int64_t allocated_for_size= size;
777
778     int size_out, frame_bytes, ret, resample_changed;
779     AVCodecContext *enc= ost->st->codec;
780     AVCodecContext *dec= ist->st->codec;
781     int osize = av_get_bytes_per_sample(enc->sample_fmt);
782     int isize = av_get_bytes_per_sample(dec->sample_fmt);
783     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
784
785 need_realloc:
786     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
787     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
788     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
789     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
790     audio_buf_size*= osize*enc->channels;
791
792     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
793     if(coded_bps > 8*osize)
794         audio_out_size= audio_out_size * coded_bps / (8*osize);
795     audio_out_size += FF_MIN_BUFFER_SIZE;
796
797     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
798         fprintf(stderr, "Buffer sizes too large\n");
799         ffmpeg_exit(1);
800     }
801
802     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
803     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
804     if (!audio_buf || !audio_out){
805         fprintf(stderr, "Out of memory in do_audio_out\n");
806         ffmpeg_exit(1);
807     }
808
809     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
810         ost->audio_resample = 1;
811
812     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
813                        ost->resample_channels    != dec->channels   ||
814                        ost->resample_sample_rate != dec->sample_rate;
815
816     if ((ost->audio_resample && !ost->resample) || resample_changed) {
817         if (resample_changed) {
818             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",
819                    ist->file_index, ist->st->index,
820                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
821                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
822             ost->resample_sample_fmt  = dec->sample_fmt;
823             ost->resample_channels    = dec->channels;
824             ost->resample_sample_rate = dec->sample_rate;
825             if (ost->resample)
826                 audio_resample_close(ost->resample);
827         }
828         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
829         if (audio_sync_method <= 1 &&
830             ost->resample_sample_fmt  == enc->sample_fmt &&
831             ost->resample_channels    == enc->channels   &&
832             ost->resample_sample_rate == enc->sample_rate) {
833             ost->resample = NULL;
834             ost->audio_resample = 0;
835         } else if (ost->audio_resample) {
836             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
837                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
838             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
839                                                    enc->sample_rate, dec->sample_rate,
840                                                    enc->sample_fmt,  dec->sample_fmt,
841                                                    16, 10, 0, 0.8);
842             if (!ost->resample) {
843                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
844                         dec->channels, dec->sample_rate,
845                         enc->channels, enc->sample_rate);
846                 ffmpeg_exit(1);
847             }
848         }
849     }
850
851 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
852     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
853         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
854         if (ost->reformat_ctx)
855             av_audio_convert_free(ost->reformat_ctx);
856         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
857                                                    dec->sample_fmt, 1, NULL, 0);
858         if (!ost->reformat_ctx) {
859             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
860                 av_get_sample_fmt_name(dec->sample_fmt),
861                 av_get_sample_fmt_name(enc->sample_fmt));
862             ffmpeg_exit(1);
863         }
864         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
865     }
866
867     if(audio_sync_method){
868         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
869                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
870         double idelta= delta*dec->sample_rate / enc->sample_rate;
871         int byte_delta= ((int)idelta)*2*dec->channels;
872
873         //FIXME resample delay
874         if(fabs(delta) > 50){
875             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
876                 if(byte_delta < 0){
877                     byte_delta= FFMAX(byte_delta, -size);
878                     size += byte_delta;
879                     buf  -= byte_delta;
880                     if(verbose > 2)
881                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
882                     if(!size)
883                         return;
884                     ist->is_start=0;
885                 }else{
886                     static uint8_t *input_tmp= NULL;
887                     input_tmp= av_realloc(input_tmp, byte_delta + size);
888
889                     if(byte_delta > allocated_for_size - size){
890                         allocated_for_size= byte_delta + (int64_t)size;
891                         goto need_realloc;
892                     }
893                     ist->is_start=0;
894
895                     memset(input_tmp, 0, byte_delta);
896                     memcpy(input_tmp + byte_delta, buf, size);
897                     buf= input_tmp;
898                     size += byte_delta;
899                     if(verbose > 2)
900                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
901                 }
902             }else if(audio_sync_method>1){
903                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
904                 av_assert0(ost->audio_resample);
905                 if(verbose > 2)
906                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
907 //                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));
908                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
909             }
910         }
911     }else
912         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
913                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
914
915     if (ost->audio_resample) {
916         buftmp = audio_buf;
917         size_out = audio_resample(ost->resample,
918                                   (short *)buftmp, (short *)buf,
919                                   size / (dec->channels * isize));
920         size_out = size_out * enc->channels * osize;
921     } else {
922         buftmp = buf;
923         size_out = size;
924     }
925
926     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
927         const void *ibuf[6]= {buftmp};
928         void *obuf[6]= {audio_buf};
929         int istride[6]= {isize};
930         int ostride[6]= {osize};
931         int len= size_out/istride[0];
932         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
933             printf("av_audio_convert() failed\n");
934             if (exit_on_error)
935                 ffmpeg_exit(1);
936             return;
937         }
938         buftmp = audio_buf;
939         size_out = len*osize;
940     }
941
942     /* now encode as many frames as possible */
943     if (enc->frame_size > 1) {
944         /* output resampled raw samples */
945         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
946             fprintf(stderr, "av_fifo_realloc2() failed\n");
947             ffmpeg_exit(1);
948         }
949         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
950
951         frame_bytes = enc->frame_size * osize * enc->channels;
952
953         while (av_fifo_size(ost->fifo) >= frame_bytes) {
954             AVPacket pkt;
955             av_init_packet(&pkt);
956
957             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
958
959             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
960
961             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
962                                        (short *)audio_buf);
963             if (ret < 0) {
964                 fprintf(stderr, "Audio encoding failed\n");
965                 ffmpeg_exit(1);
966             }
967             audio_size += ret;
968             pkt.stream_index= ost->index;
969             pkt.data= audio_out;
970             pkt.size= ret;
971             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
972                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
973             pkt.flags |= AV_PKT_FLAG_KEY;
974             write_frame(s, &pkt, enc, ost->bitstream_filters);
975
976             ost->sync_opts += enc->frame_size;
977         }
978     } else {
979         AVPacket pkt;
980         av_init_packet(&pkt);
981
982         ost->sync_opts += size_out / (osize * enc->channels);
983
984         /* output a pcm frame */
985         /* determine the size of the coded buffer */
986         size_out /= osize;
987         if (coded_bps)
988             size_out = size_out*coded_bps/8;
989
990         if(size_out > audio_out_size){
991             fprintf(stderr, "Internal error, buffer size too small\n");
992             ffmpeg_exit(1);
993         }
994
995         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
996         ret = avcodec_encode_audio(enc, audio_out, size_out,
997                                    (short *)buftmp);
998         if (ret < 0) {
999             fprintf(stderr, "Audio encoding failed\n");
1000             ffmpeg_exit(1);
1001         }
1002         audio_size += ret;
1003         pkt.stream_index= ost->index;
1004         pkt.data= audio_out;
1005         pkt.size= ret;
1006         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1007             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1008         pkt.flags |= AV_PKT_FLAG_KEY;
1009         write_frame(s, &pkt, enc, ost->bitstream_filters);
1010     }
1011 }
1012
1013 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1014 {
1015     AVCodecContext *dec;
1016     AVPicture *picture2;
1017     AVPicture picture_tmp;
1018     uint8_t *buf = 0;
1019
1020     dec = ist->st->codec;
1021
1022     /* deinterlace : must be done before any resize */
1023     if (do_deinterlace) {
1024         int size;
1025
1026         /* create temporary picture */
1027         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1028         buf = av_malloc(size);
1029         if (!buf)
1030             return;
1031
1032         picture2 = &picture_tmp;
1033         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1034
1035         if(avpicture_deinterlace(picture2, picture,
1036                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1037             /* if error, do not deinterlace */
1038             fprintf(stderr, "Deinterlacing failed\n");
1039             av_free(buf);
1040             buf = NULL;
1041             picture2 = picture;
1042         }
1043     } else {
1044         picture2 = picture;
1045     }
1046
1047     if (picture != picture2)
1048         *picture = *picture2;
1049     *bufp = buf;
1050 }
1051
1052 /* we begin to correct av delay at this threshold */
1053 #define AV_DELAY_MAX 0.100
1054
1055 static void do_subtitle_out(AVFormatContext *s,
1056                             AVOutputStream *ost,
1057                             AVInputStream *ist,
1058                             AVSubtitle *sub,
1059                             int64_t pts)
1060 {
1061     static uint8_t *subtitle_out = NULL;
1062     int subtitle_out_max_size = 1024 * 1024;
1063     int subtitle_out_size, nb, i;
1064     AVCodecContext *enc;
1065     AVPacket pkt;
1066
1067     if (pts == AV_NOPTS_VALUE) {
1068         fprintf(stderr, "Subtitle packets must have a pts\n");
1069         if (exit_on_error)
1070             ffmpeg_exit(1);
1071         return;
1072     }
1073
1074     enc = ost->st->codec;
1075
1076     if (!subtitle_out) {
1077         subtitle_out = av_malloc(subtitle_out_max_size);
1078     }
1079
1080     /* Note: DVB subtitle need one packet to draw them and one other
1081        packet to clear them */
1082     /* XXX: signal it in the codec context ? */
1083     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1084         nb = 2;
1085     else
1086         nb = 1;
1087
1088     for(i = 0; i < nb; i++) {
1089         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1090         // start_display_time is required to be 0
1091         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1092         sub->end_display_time -= sub->start_display_time;
1093         sub->start_display_time = 0;
1094         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1095                                                     subtitle_out_max_size, sub);
1096         if (subtitle_out_size < 0) {
1097             fprintf(stderr, "Subtitle encoding failed\n");
1098             ffmpeg_exit(1);
1099         }
1100
1101         av_init_packet(&pkt);
1102         pkt.stream_index = ost->index;
1103         pkt.data = subtitle_out;
1104         pkt.size = subtitle_out_size;
1105         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1106         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1107             /* XXX: the pts correction is handled here. Maybe handling
1108                it in the codec would be better */
1109             if (i == 0)
1110                 pkt.pts += 90 * sub->start_display_time;
1111             else
1112                 pkt.pts += 90 * sub->end_display_time;
1113         }
1114         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1115     }
1116 }
1117
1118 static int bit_buffer_size= 1024*256;
1119 static uint8_t *bit_buffer= NULL;
1120
1121 static void do_video_out(AVFormatContext *s,
1122                          AVOutputStream *ost,
1123                          AVInputStream *ist,
1124                          AVFrame *in_picture,
1125                          int *frame_size)
1126 {
1127     int nb_frames, i, ret, resample_changed;
1128     AVFrame *final_picture, *formatted_picture;
1129     AVCodecContext *enc, *dec;
1130     double sync_ipts;
1131
1132     enc = ost->st->codec;
1133     dec = ist->st->codec;
1134
1135     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1136
1137     /* by default, we output a single frame */
1138     nb_frames = 1;
1139
1140     *frame_size = 0;
1141
1142     if(video_sync_method){
1143         double vdelta = sync_ipts - ost->sync_opts;
1144         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1145         if (vdelta < -1.1)
1146             nb_frames = 0;
1147         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1148             if(vdelta<=-0.6){
1149                 nb_frames=0;
1150             }else if(vdelta>0.6)
1151                 ost->sync_opts= lrintf(sync_ipts);
1152         }else if (vdelta > 1.1)
1153             nb_frames = lrintf(vdelta);
1154 //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);
1155         if (nb_frames == 0){
1156             ++nb_frames_drop;
1157             if (verbose>2)
1158                 fprintf(stderr, "*** drop!\n");
1159         }else if (nb_frames > 1) {
1160             nb_frames_dup += nb_frames - 1;
1161             if (verbose>2)
1162                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1163         }
1164     }else
1165         ost->sync_opts= lrintf(sync_ipts);
1166
1167     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1168     if (nb_frames <= 0)
1169         return;
1170
1171     formatted_picture = in_picture;
1172     final_picture = formatted_picture;
1173
1174     resample_changed = ost->resample_width   != dec->width  ||
1175                        ost->resample_height  != dec->height ||
1176                        ost->resample_pix_fmt != dec->pix_fmt;
1177
1178     if (resample_changed) {
1179         av_log(NULL, AV_LOG_INFO,
1180                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1181                ist->file_index, ist->st->index,
1182                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1183                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1184         if(!ost->video_resample)
1185             ffmpeg_exit(1);
1186     }
1187
1188 #if !CONFIG_AVFILTER
1189     if (ost->video_resample) {
1190         final_picture = &ost->pict_tmp;
1191         if (resample_changed) {
1192             /* initialize a new scaler context */
1193             sws_freeContext(ost->img_resample_ctx);
1194             ost->img_resample_ctx = sws_getContext(
1195                 ist->st->codec->width,
1196                 ist->st->codec->height,
1197                 ist->st->codec->pix_fmt,
1198                 ost->st->codec->width,
1199                 ost->st->codec->height,
1200                 ost->st->codec->pix_fmt,
1201                 ost->sws_flags, NULL, NULL, NULL);
1202             if (ost->img_resample_ctx == NULL) {
1203                 fprintf(stderr, "Cannot get resampling context\n");
1204                 ffmpeg_exit(1);
1205             }
1206         }
1207         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1208               0, ost->resample_height, final_picture->data, final_picture->linesize);
1209     }
1210 #endif
1211
1212     /* duplicates frame if needed */
1213     for(i=0;i<nb_frames;i++) {
1214         AVPacket pkt;
1215         av_init_packet(&pkt);
1216         pkt.stream_index= ost->index;
1217
1218         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1219             /* raw pictures are written as AVPicture structure to
1220                avoid any copies. We support temorarily the older
1221                method. */
1222             AVFrame* old_frame = enc->coded_frame;
1223             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1224             pkt.data= (uint8_t *)final_picture;
1225             pkt.size=  sizeof(AVPicture);
1226             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1227             pkt.flags |= AV_PKT_FLAG_KEY;
1228
1229             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1230             enc->coded_frame = old_frame;
1231         } else {
1232             AVFrame big_picture;
1233
1234             big_picture= *final_picture;
1235             /* better than nothing: use input picture interlaced
1236                settings */
1237             big_picture.interlaced_frame = in_picture->interlaced_frame;
1238             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1239                 if(top_field_first == -1)
1240                     big_picture.top_field_first = in_picture->top_field_first;
1241                 else
1242                     big_picture.top_field_first = top_field_first;
1243             }
1244
1245             /* handles sameq here. This is not correct because it may
1246                not be a global option */
1247             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1248             if(!me_threshold)
1249                 big_picture.pict_type = 0;
1250 //            big_picture.pts = AV_NOPTS_VALUE;
1251             big_picture.pts= ost->sync_opts;
1252 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1253 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1254             if (ost->forced_kf_index < ost->forced_kf_count &&
1255                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1256                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1257                 ost->forced_kf_index++;
1258             }
1259             ret = avcodec_encode_video(enc,
1260                                        bit_buffer, bit_buffer_size,
1261                                        &big_picture);
1262             if (ret < 0) {
1263                 fprintf(stderr, "Video encoding failed\n");
1264                 ffmpeg_exit(1);
1265             }
1266
1267             if(ret>0){
1268                 pkt.data= bit_buffer;
1269                 pkt.size= ret;
1270                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1271                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1272 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1273    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1274    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1275
1276                 if(enc->coded_frame->key_frame)
1277                     pkt.flags |= AV_PKT_FLAG_KEY;
1278                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1279                 *frame_size = ret;
1280                 video_size += ret;
1281                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1282                 //        enc->frame_number-1, ret, enc->pict_type);
1283                 /* if two pass, output log */
1284                 if (ost->logfile && enc->stats_out) {
1285                     fprintf(ost->logfile, "%s", enc->stats_out);
1286                 }
1287             }
1288         }
1289         ost->sync_opts++;
1290         ost->frame_number++;
1291     }
1292 }
1293
1294 static double psnr(double d){
1295     return -10.0*log(d)/log(10.0);
1296 }
1297
1298 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1299                            int frame_size)
1300 {
1301     AVCodecContext *enc;
1302     int frame_number;
1303     double ti1, bitrate, avg_bitrate;
1304
1305     /* this is executed just the first time do_video_stats is called */
1306     if (!vstats_file) {
1307         vstats_file = fopen(vstats_filename, "w");
1308         if (!vstats_file) {
1309             perror("fopen");
1310             ffmpeg_exit(1);
1311         }
1312     }
1313
1314     enc = ost->st->codec;
1315     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316         frame_number = ost->frame_number;
1317         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1318         if (enc->flags&CODEC_FLAG_PSNR)
1319             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1320
1321         fprintf(vstats_file,"f_size= %6d ", frame_size);
1322         /* compute pts value */
1323         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1324         if (ti1 < 0.01)
1325             ti1 = 0.01;
1326
1327         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1328         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1329         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1330             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1331         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1332     }
1333 }
1334
1335 static void print_report(AVFormatContext **output_files,
1336                          AVOutputStream **ost_table, int nb_ostreams,
1337                          int is_last_report)
1338 {
1339     char buf[1024];
1340     AVOutputStream *ost;
1341     AVFormatContext *oc;
1342     int64_t total_size;
1343     AVCodecContext *enc;
1344     int frame_number, vid, i;
1345     double bitrate, ti1, pts;
1346     static int64_t last_time = -1;
1347     static int qp_histogram[52];
1348
1349     if (!is_last_report) {
1350         int64_t cur_time;
1351         /* display the report every 0.5 seconds */
1352         cur_time = av_gettime();
1353         if (last_time == -1) {
1354             last_time = cur_time;
1355             return;
1356         }
1357         if ((cur_time - last_time) < 500000)
1358             return;
1359         last_time = cur_time;
1360     }
1361
1362
1363     oc = output_files[0];
1364
1365     total_size = avio_size(oc->pb);
1366     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1367         total_size= avio_tell(oc->pb);
1368
1369     buf[0] = '\0';
1370     ti1 = 1e10;
1371     vid = 0;
1372     for(i=0;i<nb_ostreams;i++) {
1373         float q = -1;
1374         ost = ost_table[i];
1375         enc = ost->st->codec;
1376         if (!ost->st->stream_copy && enc->coded_frame)
1377             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1378         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1379             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1380         }
1381         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1382             float t = (av_gettime()-timer_start) / 1000000.0;
1383
1384             frame_number = ost->frame_number;
1385             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1386                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1387             if(is_last_report)
1388                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1389             if(qp_hist){
1390                 int j;
1391                 int qp = lrintf(q);
1392                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1393                     qp_histogram[qp]++;
1394                 for(j=0; j<32; j++)
1395                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1396             }
1397             if (enc->flags&CODEC_FLAG_PSNR){
1398                 int j;
1399                 double error, error_sum=0;
1400                 double scale, scale_sum=0;
1401                 char type[3]= {'Y','U','V'};
1402                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1403                 for(j=0; j<3; j++){
1404                     if(is_last_report){
1405                         error= enc->error[j];
1406                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1407                     }else{
1408                         error= enc->coded_frame->error[j];
1409                         scale= enc->width*enc->height*255.0*255.0;
1410                     }
1411                     if(j) scale/=4;
1412                     error_sum += error;
1413                     scale_sum += scale;
1414                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1415                 }
1416                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1417             }
1418             vid = 1;
1419         }
1420         /* compute min output value */
1421         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1422         if ((pts < ti1) && (pts > 0))
1423             ti1 = pts;
1424     }
1425     if (ti1 < 0.01)
1426         ti1 = 0.01;
1427
1428     if (verbose > 0 || is_last_report) {
1429         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1430
1431         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1432             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1433             (double)total_size / 1024, ti1, bitrate);
1434
1435         if (nb_frames_dup || nb_frames_drop)
1436           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1437                   nb_frames_dup, nb_frames_drop);
1438
1439         if (verbose >= 0)
1440             fprintf(stderr, "%s    \r", buf);
1441
1442         fflush(stderr);
1443     }
1444
1445     if (is_last_report && verbose >= 0){
1446         int64_t raw= audio_size + video_size + extra_size;
1447         fprintf(stderr, "\n");
1448         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1449                 video_size/1024.0,
1450                 audio_size/1024.0,
1451                 extra_size/1024.0,
1452                 100.0*(total_size - raw)/raw
1453         );
1454     }
1455 }
1456
1457 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1458 {
1459     int fill_char = 0x00;
1460     if (sample_fmt == AV_SAMPLE_FMT_U8)
1461         fill_char = 0x80;
1462     memset(buf, fill_char, size);
1463 }
1464
1465 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1466 static int output_packet(AVInputStream *ist, int ist_index,
1467                          AVOutputStream **ost_table, int nb_ostreams,
1468                          const AVPacket *pkt)
1469 {
1470     AVFormatContext *os;
1471     AVOutputStream *ost;
1472     int ret, i;
1473     int got_output;
1474     AVFrame picture;
1475     void *buffer_to_free = NULL;
1476     static unsigned int samples_size= 0;
1477     AVSubtitle subtitle, *subtitle_to_free;
1478     int64_t pkt_pts = AV_NOPTS_VALUE;
1479 #if CONFIG_AVFILTER
1480     int frame_available;
1481 #endif
1482
1483     AVPacket avpkt;
1484     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1485
1486     if(ist->next_pts == AV_NOPTS_VALUE)
1487         ist->next_pts= ist->pts;
1488
1489     if (pkt == NULL) {
1490         /* EOF handling */
1491         av_init_packet(&avpkt);
1492         avpkt.data = NULL;
1493         avpkt.size = 0;
1494         goto handle_eof;
1495     } else {
1496         avpkt = *pkt;
1497     }
1498
1499     if(pkt->dts != AV_NOPTS_VALUE)
1500         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1501     if(pkt->pts != AV_NOPTS_VALUE)
1502         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1503
1504     //while we have more to decode or while the decoder did output something on EOF
1505     while (avpkt.size > 0 || (!pkt && got_output)) {
1506         uint8_t *data_buf, *decoded_data_buf;
1507         int data_size, decoded_data_size;
1508     handle_eof:
1509         ist->pts= ist->next_pts;
1510
1511         if(avpkt.size && avpkt.size != pkt->size &&
1512            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1513             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1514             ist->showed_multi_packet_warning=1;
1515         }
1516
1517         /* decode the packet if needed */
1518         decoded_data_buf = NULL; /* fail safe */
1519         decoded_data_size= 0;
1520         data_buf  = avpkt.data;
1521         data_size = avpkt.size;
1522         subtitle_to_free = NULL;
1523         if (ist->decoding_needed) {
1524             switch(ist->st->codec->codec_type) {
1525             case AVMEDIA_TYPE_AUDIO:{
1526                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1527                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1528                     av_free(samples);
1529                     samples= av_malloc(samples_size);
1530                 }
1531                 decoded_data_size= samples_size;
1532                     /* XXX: could avoid copy if PCM 16 bits with same
1533                        endianness as CPU */
1534                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1535                                             &avpkt);
1536                 if (ret < 0)
1537                     goto fail_decode;
1538                 avpkt.data += ret;
1539                 avpkt.size -= ret;
1540                 data_size   = ret;
1541                 got_output  = decoded_data_size > 0;
1542                 /* Some bug in mpeg audio decoder gives */
1543                 /* decoded_data_size < 0, it seems they are overflows */
1544                 if (!got_output) {
1545                     /* no audio frame */
1546                     continue;
1547                 }
1548                 decoded_data_buf = (uint8_t *)samples;
1549                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1550                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1551                 break;}
1552             case AVMEDIA_TYPE_VIDEO:
1553                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1554                     /* XXX: allocate picture correctly */
1555                     avcodec_get_frame_defaults(&picture);
1556                     avpkt.pts = pkt_pts;
1557                     avpkt.dts = ist->pts;
1558                     pkt_pts = AV_NOPTS_VALUE;
1559
1560                     ret = avcodec_decode_video2(ist->st->codec,
1561                                                 &picture, &got_output, &avpkt);
1562                     ist->st->quality= picture.quality;
1563                     if (ret < 0)
1564                         goto fail_decode;
1565                     if (!got_output) {
1566                         /* no picture yet */
1567                         goto discard_packet;
1568                     }
1569                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1570                     if (ist->st->codec->time_base.num != 0) {
1571                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1572                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1573                                           ist->st->codec->time_base.num * ticks) /
1574                             ist->st->codec->time_base.den;
1575                     }
1576                     avpkt.size = 0;
1577                     buffer_to_free = NULL;
1578                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1579                     break;
1580             case AVMEDIA_TYPE_SUBTITLE:
1581                 ret = avcodec_decode_subtitle2(ist->st->codec,
1582                                                &subtitle, &got_output, &avpkt);
1583                 if (ret < 0)
1584                     goto fail_decode;
1585                 if (!got_output) {
1586                     goto discard_packet;
1587                 }
1588                 subtitle_to_free = &subtitle;
1589                 avpkt.size = 0;
1590                 break;
1591             default:
1592                 goto fail_decode;
1593             }
1594         } else {
1595             switch(ist->st->codec->codec_type) {
1596             case AVMEDIA_TYPE_AUDIO:
1597                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1598                     ist->st->codec->sample_rate;
1599                 break;
1600             case AVMEDIA_TYPE_VIDEO:
1601                 if (ist->st->codec->time_base.num != 0) {
1602                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1603                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1604                                       ist->st->codec->time_base.num * ticks) /
1605                         ist->st->codec->time_base.den;
1606                 }
1607                 break;
1608             }
1609             ret = avpkt.size;
1610             avpkt.size = 0;
1611         }
1612
1613 #if CONFIG_AVFILTER
1614         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1615             for (i = 0; i < nb_ostreams; i++) {
1616                 ost = ost_table[i];
1617                 if (ost->input_video_filter && ost->source_index == ist_index) {
1618                     AVRational sar;
1619                     if (ist->st->sample_aspect_ratio.num)
1620                         sar = ist->st->sample_aspect_ratio;
1621                     else
1622                         sar = ist->st->codec->sample_aspect_ratio;
1623                     // add it to be filtered
1624                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1625                                              ist->pts,
1626                                              sar);
1627                 }
1628             }
1629         }
1630 #endif
1631
1632         // preprocess audio (volume)
1633         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1634             if (audio_volume != 256) {
1635                 short *volp;
1636                 volp = samples;
1637                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1638                     int v = ((*volp) * audio_volume + 128) >> 8;
1639                     if (v < -32768) v = -32768;
1640                     if (v >  32767) v = 32767;
1641                     *volp++ = v;
1642                 }
1643             }
1644         }
1645
1646         /* frame rate emulation */
1647         if (rate_emu) {
1648             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1649             int64_t now = av_gettime() - ist->start;
1650             if (pts > now)
1651                 usleep(pts - now);
1652         }
1653         /* if output time reached then transcode raw format,
1654            encode packets and output them */
1655         if (start_time == 0 || ist->pts >= start_time)
1656             for(i=0;i<nb_ostreams;i++) {
1657                 int frame_size;
1658
1659                 ost = ost_table[i];
1660                 if (ost->source_index == ist_index) {
1661 #if CONFIG_AVFILTER
1662                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1663                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1664                 while (frame_available) {
1665                     AVRational ist_pts_tb;
1666                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1667                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1668                     if (ost->picref)
1669                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1670 #endif
1671                     os = output_files[ost->file_index];
1672
1673                     /* set the input output pts pairs */
1674                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1675
1676                     if (ost->encoding_needed) {
1677                         av_assert0(ist->decoding_needed);
1678                         switch(ost->st->codec->codec_type) {
1679                         case AVMEDIA_TYPE_AUDIO:
1680                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1681                             break;
1682                         case AVMEDIA_TYPE_VIDEO:
1683 #if CONFIG_AVFILTER
1684                             if (ost->picref->video && !ost->frame_aspect_ratio)
1685                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1686 #endif
1687                             do_video_out(os, ost, ist, &picture, &frame_size);
1688                             if (vstats_filename && frame_size)
1689                                 do_video_stats(os, ost, frame_size);
1690                             break;
1691                         case AVMEDIA_TYPE_SUBTITLE:
1692                             do_subtitle_out(os, ost, ist, &subtitle,
1693                                             pkt->pts);
1694                             break;
1695                         default:
1696                             abort();
1697                         }
1698                     } else {
1699                         AVFrame avframe; //FIXME/XXX remove this
1700                         AVPacket opkt;
1701                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1702
1703                         av_init_packet(&opkt);
1704
1705                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1706 #if !CONFIG_AVFILTER
1707                             continue;
1708 #else
1709                             goto cont;
1710 #endif
1711
1712                         /* no reencoding needed : output the packet directly */
1713                         /* force the input stream PTS */
1714
1715                         avcodec_get_frame_defaults(&avframe);
1716                         ost->st->codec->coded_frame= &avframe;
1717                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1718
1719                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1720                             audio_size += data_size;
1721                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1722                             video_size += data_size;
1723                             ost->sync_opts++;
1724                         }
1725
1726                         opkt.stream_index= ost->index;
1727                         if(pkt->pts != AV_NOPTS_VALUE)
1728                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1729                         else
1730                             opkt.pts= AV_NOPTS_VALUE;
1731
1732                         if (pkt->dts == AV_NOPTS_VALUE)
1733                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1734                         else
1735                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1736                         opkt.dts -= ost_tb_start_time;
1737
1738                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1739                         opkt.flags= pkt->flags;
1740
1741                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1742                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1743                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1744                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1745                            ) {
1746                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1747                                 opkt.destruct= av_destruct_packet;
1748                         } else {
1749                             opkt.data = data_buf;
1750                             opkt.size = data_size;
1751                         }
1752
1753                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1754                         ost->st->codec->frame_number++;
1755                         ost->frame_number++;
1756                         av_free_packet(&opkt);
1757                     }
1758 #if CONFIG_AVFILTER
1759                     cont:
1760                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1761                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1762                     if (ost->picref)
1763                         avfilter_unref_buffer(ost->picref);
1764                 }
1765 #endif
1766                 }
1767             }
1768
1769         av_free(buffer_to_free);
1770         /* XXX: allocate the subtitles in the codec ? */
1771         if (subtitle_to_free) {
1772             avsubtitle_free(subtitle_to_free);
1773             subtitle_to_free = NULL;
1774         }
1775     }
1776  discard_packet:
1777     if (pkt == NULL) {
1778         /* EOF handling */
1779
1780         for(i=0;i<nb_ostreams;i++) {
1781             ost = ost_table[i];
1782             if (ost->source_index == ist_index) {
1783                 AVCodecContext *enc= ost->st->codec;
1784                 os = output_files[ost->file_index];
1785
1786                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1787                     continue;
1788                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1789                     continue;
1790
1791                 if (ost->encoding_needed) {
1792                     for(;;) {
1793                         AVPacket pkt;
1794                         int fifo_bytes;
1795                         av_init_packet(&pkt);
1796                         pkt.stream_index= ost->index;
1797
1798                         switch(ost->st->codec->codec_type) {
1799                         case AVMEDIA_TYPE_AUDIO:
1800                             fifo_bytes = av_fifo_size(ost->fifo);
1801                             ret = 0;
1802                             /* encode any samples remaining in fifo */
1803                             if (fifo_bytes > 0) {
1804                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1805                                 int fs_tmp = enc->frame_size;
1806
1807                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1808                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1809                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1810                                 } else { /* pad */
1811                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1812                                     if (allocated_audio_buf_size < frame_bytes)
1813                                         ffmpeg_exit(1);
1814                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1815                                 }
1816
1817                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1818                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1819                                                           ost->st->time_base.num, enc->sample_rate);
1820                                 enc->frame_size = fs_tmp;
1821                             }
1822                             if(ret <= 0) {
1823                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1824                             }
1825                             if (ret < 0) {
1826                                 fprintf(stderr, "Audio encoding failed\n");
1827                                 ffmpeg_exit(1);
1828                             }
1829                             audio_size += ret;
1830                             pkt.flags |= AV_PKT_FLAG_KEY;
1831                             break;
1832                         case AVMEDIA_TYPE_VIDEO:
1833                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1834                             if (ret < 0) {
1835                                 fprintf(stderr, "Video encoding failed\n");
1836                                 ffmpeg_exit(1);
1837                             }
1838                             video_size += ret;
1839                             if(enc->coded_frame && enc->coded_frame->key_frame)
1840                                 pkt.flags |= AV_PKT_FLAG_KEY;
1841                             if (ost->logfile && enc->stats_out) {
1842                                 fprintf(ost->logfile, "%s", enc->stats_out);
1843                             }
1844                             break;
1845                         default:
1846                             ret=-1;
1847                         }
1848
1849                         if(ret<=0)
1850                             break;
1851                         pkt.data= bit_buffer;
1852                         pkt.size= ret;
1853                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1854                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1855                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1856                     }
1857                 }
1858             }
1859         }
1860     }
1861
1862     return 0;
1863  fail_decode:
1864     return -1;
1865 }
1866
1867 static void print_sdp(AVFormatContext **avc, int n)
1868 {
1869     char sdp[2048];
1870
1871     av_sdp_create(avc, n, sdp, sizeof(sdp));
1872     printf("SDP:\n%s\n", sdp);
1873     fflush(stdout);
1874 }
1875
1876 static int copy_chapters(int infile, int outfile)
1877 {
1878     AVFormatContext *is = input_files[infile].ctx;
1879     AVFormatContext *os = output_files[outfile];
1880     int i;
1881
1882     for (i = 0; i < is->nb_chapters; i++) {
1883         AVChapter *in_ch = is->chapters[i], *out_ch;
1884         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1885                                       AV_TIME_BASE_Q, in_ch->time_base);
1886         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1887                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1888
1889
1890         if (in_ch->end < ts_off)
1891             continue;
1892         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1893             break;
1894
1895         out_ch = av_mallocz(sizeof(AVChapter));
1896         if (!out_ch)
1897             return AVERROR(ENOMEM);
1898
1899         out_ch->id        = in_ch->id;
1900         out_ch->time_base = in_ch->time_base;
1901         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1902         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1903
1904         if (metadata_chapters_autocopy)
1905             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1906
1907         os->nb_chapters++;
1908         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1909         if (!os->chapters)
1910             return AVERROR(ENOMEM);
1911         os->chapters[os->nb_chapters - 1] = out_ch;
1912     }
1913     return 0;
1914 }
1915
1916 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1917                                     AVCodecContext *avctx)
1918 {
1919     char *p;
1920     int n = 1, i;
1921     int64_t t;
1922
1923     for (p = kf; *p; p++)
1924         if (*p == ',')
1925             n++;
1926     ost->forced_kf_count = n;
1927     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1928     if (!ost->forced_kf_pts) {
1929         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1930         ffmpeg_exit(1);
1931     }
1932     for (i = 0; i < n; i++) {
1933         p = i ? strchr(p, ',') + 1 : kf;
1934         t = parse_time_or_die("force_key_frames", p, 1);
1935         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1936     }
1937 }
1938
1939 /*
1940  * The following code is the main loop of the file converter
1941  */
1942 static int transcode(AVFormatContext **output_files,
1943                      int nb_output_files,
1944                      AVInputFile *input_files,
1945                      int nb_input_files,
1946                      AVStreamMap *stream_maps, int nb_stream_maps)
1947 {
1948     int ret = 0, i, j, k, n, nb_ostreams = 0;
1949     AVFormatContext *is, *os;
1950     AVCodecContext *codec, *icodec;
1951     AVOutputStream *ost, **ost_table = NULL;
1952     AVInputStream *ist;
1953     char error[1024];
1954     int want_sdp = 1;
1955     uint8_t no_packet[MAX_FILES]={0};
1956     int no_packet_count=0;
1957
1958     if (rate_emu)
1959         for (i = 0; i < nb_input_streams; i++)
1960             input_streams[i].start = av_gettime();
1961
1962     /* output stream init */
1963     nb_ostreams = 0;
1964     for(i=0;i<nb_output_files;i++) {
1965         os = output_files[i];
1966         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1967             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1968             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1969             ret = AVERROR(EINVAL);
1970             goto fail;
1971         }
1972         nb_ostreams += os->nb_streams;
1973     }
1974     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1975         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1976         ret = AVERROR(EINVAL);
1977         goto fail;
1978     }
1979
1980     /* Sanity check the mapping args -- do the input files & streams exist? */
1981     for(i=0;i<nb_stream_maps;i++) {
1982         int fi = stream_maps[i].file_index;
1983         int si = stream_maps[i].stream_index;
1984
1985         if (fi < 0 || fi > nb_input_files - 1 ||
1986             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1987             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1988             ret = AVERROR(EINVAL);
1989             goto fail;
1990         }
1991         fi = stream_maps[i].sync_file_index;
1992         si = stream_maps[i].sync_stream_index;
1993         if (fi < 0 || fi > nb_input_files - 1 ||
1994             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1995             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1996             ret = AVERROR(EINVAL);
1997             goto fail;
1998         }
1999     }
2000
2001     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2002     if (!ost_table)
2003         goto fail;
2004     n = 0;
2005     for(k=0;k<nb_output_files;k++) {
2006         os = output_files[k];
2007         for(i=0;i<os->nb_streams;i++,n++) {
2008             int found;
2009             ost = ost_table[n] = output_streams_for_file[k][i];
2010             ost->st = os->streams[i];
2011             if (nb_stream_maps > 0) {
2012                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2013                     stream_maps[n].stream_index;
2014
2015                 /* Sanity check that the stream types match */
2016                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2017                     int i= ost->file_index;
2018                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2019                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2020                         stream_maps[n].file_index, stream_maps[n].stream_index,
2021                         ost->file_index, ost->index);
2022                     ffmpeg_exit(1);
2023                 }
2024
2025             } else {
2026                 int best_nb_frames=-1;
2027                 /* get corresponding input stream index : we select the first one with the right type */
2028                 found = 0;
2029                 for (j = 0; j < nb_input_streams; j++) {
2030                     int skip=0;
2031                     ist = &input_streams[j];
2032                     if(opt_programid){
2033                         int pi,si;
2034                         AVFormatContext *f = input_files[ist->file_index].ctx;
2035                         skip=1;
2036                         for(pi=0; pi<f->nb_programs; pi++){
2037                             AVProgram *p= f->programs[pi];
2038                             if(p->id == opt_programid)
2039                                 for(si=0; si<p->nb_stream_indexes; si++){
2040                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2041                                         skip=0;
2042                                 }
2043                         }
2044                     }
2045                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2046                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2047                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2048                             best_nb_frames= ist->st->codec_info_nb_frames;
2049                             ost->source_index = j;
2050                             found = 1;
2051                         }
2052                     }
2053                 }
2054
2055                 if (!found) {
2056                     if(! opt_programid) {
2057                         /* try again and reuse existing stream */
2058                         for (j = 0; j < nb_input_streams; j++) {
2059                             ist = &input_streams[j];
2060                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2061                                 && ist->st->discard != AVDISCARD_ALL) {
2062                                 ost->source_index = j;
2063                                 found = 1;
2064                             }
2065                         }
2066                     }
2067                     if (!found) {
2068                         int i= ost->file_index;
2069                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2070                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2071                                 ost->file_index, ost->index);
2072                         ffmpeg_exit(1);
2073                     }
2074                 }
2075             }
2076             ist = &input_streams[ost->source_index];
2077             ist->discard = 0;
2078             ost->sync_ist = (nb_stream_maps > 0) ?
2079                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2080                          stream_maps[n].sync_stream_index] : ist;
2081         }
2082     }
2083
2084     /* for each output stream, we compute the right encoding parameters */
2085     for(i=0;i<nb_ostreams;i++) {
2086         ost = ost_table[i];
2087         os = output_files[ost->file_index];
2088         ist = &input_streams[ost->source_index];
2089
2090         codec = ost->st->codec;
2091         icodec = ist->st->codec;
2092
2093         if (metadata_streams_autocopy)
2094             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2095                          AV_DICT_DONT_OVERWRITE);
2096
2097         ost->st->disposition = ist->st->disposition;
2098         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2099         codec->chroma_sample_location = icodec->chroma_sample_location;
2100
2101         if (ost->st->stream_copy) {
2102             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2103
2104             if (extra_size > INT_MAX)
2105                 goto fail;
2106
2107             /* if stream_copy is selected, no need to decode or encode */
2108             codec->codec_id = icodec->codec_id;
2109             codec->codec_type = icodec->codec_type;
2110
2111             if(!codec->codec_tag){
2112                 if(   !os->oformat->codec_tag
2113                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2114                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2115                     codec->codec_tag = icodec->codec_tag;
2116             }
2117
2118             codec->bit_rate = icodec->bit_rate;
2119             codec->rc_max_rate    = icodec->rc_max_rate;
2120             codec->rc_buffer_size = icodec->rc_buffer_size;
2121             codec->extradata= av_mallocz(extra_size);
2122             if (!codec->extradata)
2123                 goto fail;
2124             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2125             codec->extradata_size= icodec->extradata_size;
2126             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){
2127                 codec->time_base = icodec->time_base;
2128                 codec->time_base.num *= icodec->ticks_per_frame;
2129                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2130                           codec->time_base.num, codec->time_base.den, INT_MAX);
2131             }else
2132                 codec->time_base = ist->st->time_base;
2133             switch(codec->codec_type) {
2134             case AVMEDIA_TYPE_AUDIO:
2135                 if(audio_volume != 256) {
2136                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2137                     ffmpeg_exit(1);
2138                 }
2139                 codec->channel_layout = icodec->channel_layout;
2140                 codec->sample_rate = icodec->sample_rate;
2141                 codec->channels = icodec->channels;
2142                 codec->frame_size = icodec->frame_size;
2143                 codec->audio_service_type = icodec->audio_service_type;
2144                 codec->block_align= icodec->block_align;
2145                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2146                     codec->block_align= 0;
2147                 if(codec->codec_id == CODEC_ID_AC3)
2148                     codec->block_align= 0;
2149                 break;
2150             case AVMEDIA_TYPE_VIDEO:
2151                 codec->pix_fmt = icodec->pix_fmt;
2152                 codec->width = icodec->width;
2153                 codec->height = icodec->height;
2154                 codec->has_b_frames = icodec->has_b_frames;
2155                 if (!codec->sample_aspect_ratio.num) {
2156                     codec->sample_aspect_ratio =
2157                     ost->st->sample_aspect_ratio =
2158                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2159                         ist->st->codec->sample_aspect_ratio.num ?
2160                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2161                 }
2162                 break;
2163             case AVMEDIA_TYPE_SUBTITLE:
2164                 codec->width = icodec->width;
2165                 codec->height = icodec->height;
2166                 break;
2167             case AVMEDIA_TYPE_DATA:
2168                 break;
2169             default:
2170                 abort();
2171             }
2172         } else {
2173             if (!ost->enc)
2174                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2175             switch(codec->codec_type) {
2176             case AVMEDIA_TYPE_AUDIO:
2177                 ost->fifo= av_fifo_alloc(1024);
2178                 if(!ost->fifo)
2179                     goto fail;
2180                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2181                 if (!codec->sample_rate) {
2182                     codec->sample_rate = icodec->sample_rate;
2183                     if (icodec->lowres)
2184                         codec->sample_rate >>= icodec->lowres;
2185                 }
2186                 choose_sample_rate(ost->st, ost->enc);
2187                 codec->time_base = (AVRational){1, codec->sample_rate};
2188                 if (!codec->channels)
2189                     codec->channels = icodec->channels;
2190                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2191                     codec->channel_layout = 0;
2192                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2193                 icodec->request_channels = codec->channels;
2194                 ist->decoding_needed = 1;
2195                 ost->encoding_needed = 1;
2196                 ost->resample_sample_fmt  = icodec->sample_fmt;
2197                 ost->resample_sample_rate = icodec->sample_rate;
2198                 ost->resample_channels    = icodec->channels;
2199                 break;
2200             case AVMEDIA_TYPE_VIDEO:
2201                 if (codec->pix_fmt == PIX_FMT_NONE)
2202                     codec->pix_fmt = icodec->pix_fmt;
2203                 choose_pixel_fmt(ost->st, ost->enc);
2204
2205                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2206                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2207                     ffmpeg_exit(1);
2208                 }
2209                 ost->video_resample = codec->width   != icodec->width  ||
2210                                       codec->height  != icodec->height ||
2211                                       codec->pix_fmt != icodec->pix_fmt;
2212                 if (ost->video_resample) {
2213 #if !CONFIG_AVFILTER
2214                     avcodec_get_frame_defaults(&ost->pict_tmp);
2215                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2216                                          codec->width, codec->height)) {
2217                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2218                         ffmpeg_exit(1);
2219                     }
2220                     ost->img_resample_ctx = sws_getContext(
2221                         icodec->width,
2222                         icodec->height,
2223                             icodec->pix_fmt,
2224                             codec->width,
2225                             codec->height,
2226                             codec->pix_fmt,
2227                             ost->sws_flags, NULL, NULL, NULL);
2228                     if (ost->img_resample_ctx == NULL) {
2229                         fprintf(stderr, "Cannot get resampling context\n");
2230                         ffmpeg_exit(1);
2231                     }
2232 #endif
2233                     codec->bits_per_raw_sample= 0;
2234                 }
2235                 if (!codec->width || !codec->height) {
2236                     codec->width  = icodec->width;
2237                     codec->height = icodec->height;
2238                 }
2239                 ost->resample_height = icodec->height;
2240                 ost->resample_width  = icodec->width;
2241                 ost->resample_pix_fmt= icodec->pix_fmt;
2242                 ost->encoding_needed = 1;
2243                 ist->decoding_needed = 1;
2244
2245                 if (!ost->frame_rate.num)
2246                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2247                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2248                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2249                     ost->frame_rate = ost->enc->supported_framerates[idx];
2250                 }
2251                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2252
2253 #if CONFIG_AVFILTER
2254                 if (configure_video_filters(ist, ost)) {
2255                     fprintf(stderr, "Error opening filters!\n");
2256                     exit(1);
2257                 }
2258 #endif
2259                 break;
2260             case AVMEDIA_TYPE_SUBTITLE:
2261                 ost->encoding_needed = 1;
2262                 ist->decoding_needed = 1;
2263                 break;
2264             default:
2265                 abort();
2266                 break;
2267             }
2268             /* two pass mode */
2269             if (ost->encoding_needed &&
2270                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2271                 char logfilename[1024];
2272                 FILE *f;
2273
2274                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2275                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2276                          i);
2277                 if (codec->flags & CODEC_FLAG_PASS1) {
2278                     f = fopen(logfilename, "wb");
2279                     if (!f) {
2280                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2281                         ffmpeg_exit(1);
2282                     }
2283                     ost->logfile = f;
2284                 } else {
2285                     char  *logbuffer;
2286                     size_t logbuffer_size;
2287                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2288                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2289                         ffmpeg_exit(1);
2290                     }
2291                     codec->stats_in = logbuffer;
2292                 }
2293             }
2294         }
2295         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2296             int size= codec->width * codec->height;
2297             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2298         }
2299     }
2300
2301     if (!bit_buffer)
2302         bit_buffer = av_malloc(bit_buffer_size);
2303     if (!bit_buffer) {
2304         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2305                 bit_buffer_size);
2306         ret = AVERROR(ENOMEM);
2307         goto fail;
2308     }
2309
2310     /* open each encoder */
2311     for(i=0;i<nb_ostreams;i++) {
2312         ost = ost_table[i];
2313         if (ost->encoding_needed) {
2314             AVCodec *codec = ost->enc;
2315             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2316             if (!codec) {
2317                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2318                          ost->st->codec->codec_id, ost->file_index, ost->index);
2319                 ret = AVERROR(EINVAL);
2320                 goto dump_format;
2321             }
2322             if (dec->subtitle_header) {
2323                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2324                 if (!ost->st->codec->subtitle_header) {
2325                     ret = AVERROR(ENOMEM);
2326                     goto dump_format;
2327                 }
2328                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2329                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2330             }
2331             if (avcodec_open(ost->st->codec, codec) < 0) {
2332                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2333                         ost->file_index, ost->index);
2334                 ret = AVERROR(EINVAL);
2335                 goto dump_format;
2336             }
2337             extra_size += ost->st->codec->extradata_size;
2338         }
2339     }
2340
2341     /* open each decoder */
2342     for (i = 0; i < nb_input_streams; i++) {
2343         ist = &input_streams[i];
2344         if (ist->decoding_needed) {
2345             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2346             if (!codec)
2347                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2348             if (!codec) {
2349                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2350                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2351                 ret = AVERROR(EINVAL);
2352                 goto dump_format;
2353             }
2354
2355             /* update requested sample format for the decoder based on the
2356                corresponding encoder sample format */
2357             for (j = 0; j < nb_ostreams; j++) {
2358                 ost = ost_table[j];
2359                 if (ost->source_index == i) {
2360                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2361                     break;
2362                 }
2363             }
2364
2365             if (avcodec_open(ist->st->codec, codec) < 0) {
2366                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2367                         ist->file_index, ist->st->index);
2368                 ret = AVERROR(EINVAL);
2369                 goto dump_format;
2370             }
2371             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2372             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2373         }
2374     }
2375
2376     /* init pts */
2377     for (i = 0; i < nb_input_streams; i++) {
2378         AVStream *st;
2379         ist = &input_streams[i];
2380         st= ist->st;
2381         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2382         ist->next_pts = AV_NOPTS_VALUE;
2383         init_pts_correction(&ist->pts_ctx);
2384         ist->is_start = 1;
2385     }
2386
2387     /* set meta data information from input file if required */
2388     for (i=0;i<nb_meta_data_maps;i++) {
2389         AVFormatContext *files[2];
2390         AVDictionary    **meta[2];
2391         int j;
2392
2393 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2394         if ((index) < 0 || (index) >= (nb_elems)) {\
2395             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2396                      (desc), (index));\
2397             ret = AVERROR(EINVAL);\
2398             goto dump_format;\
2399         }
2400
2401         int out_file_index = meta_data_maps[i][0].file;
2402         int in_file_index = meta_data_maps[i][1].file;
2403         if (in_file_index < 0 || out_file_index < 0)
2404             continue;
2405         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2406         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2407
2408         files[0] = output_files[out_file_index];
2409         files[1] = input_files[in_file_index].ctx;
2410
2411         for (j = 0; j < 2; j++) {
2412             AVMetaDataMap *map = &meta_data_maps[i][j];
2413
2414             switch (map->type) {
2415             case 'g':
2416                 meta[j] = &files[j]->metadata;
2417                 break;
2418             case 's':
2419                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2420                 meta[j] = &files[j]->streams[map->index]->metadata;
2421                 break;
2422             case 'c':
2423                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2424                 meta[j] = &files[j]->chapters[map->index]->metadata;
2425                 break;
2426             case 'p':
2427                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2428                 meta[j] = &files[j]->programs[map->index]->metadata;
2429                 break;
2430             }
2431         }
2432
2433         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2434     }
2435
2436     /* copy global metadata by default */
2437     if (metadata_global_autocopy) {
2438
2439         for (i = 0; i < nb_output_files; i++)
2440             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2441                          AV_DICT_DONT_OVERWRITE);
2442     }
2443
2444     /* copy chapters according to chapter maps */
2445     for (i = 0; i < nb_chapter_maps; i++) {
2446         int infile  = chapter_maps[i].in_file;
2447         int outfile = chapter_maps[i].out_file;
2448
2449         if (infile < 0 || outfile < 0)
2450             continue;
2451         if (infile >= nb_input_files) {
2452             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2453             ret = AVERROR(EINVAL);
2454             goto dump_format;
2455         }
2456         if (outfile >= nb_output_files) {
2457             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2458             ret = AVERROR(EINVAL);
2459             goto dump_format;
2460         }
2461         copy_chapters(infile, outfile);
2462     }
2463
2464     /* copy chapters from the first input file that has them*/
2465     if (!nb_chapter_maps)
2466         for (i = 0; i < nb_input_files; i++) {
2467             if (!input_files[i].ctx->nb_chapters)
2468                 continue;
2469
2470             for (j = 0; j < nb_output_files; j++)
2471                 if ((ret = copy_chapters(i, j)) < 0)
2472                     goto dump_format;
2473             break;
2474         }
2475
2476     /* open files and write file headers */
2477     for(i=0;i<nb_output_files;i++) {
2478         os = output_files[i];
2479         if (avformat_write_header(os, &output_opts[i]) < 0) {
2480             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2481             ret = AVERROR(EINVAL);
2482             goto dump_format;
2483         }
2484         assert_avoptions(output_opts[i]);
2485         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2486             want_sdp = 0;
2487         }
2488     }
2489
2490  dump_format:
2491     /* dump the file output parameters - cannot be done before in case
2492        of stream copy */
2493     for(i=0;i<nb_output_files;i++) {
2494         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2495     }
2496
2497     /* dump the stream mapping */
2498     if (verbose >= 0) {
2499         fprintf(stderr, "Stream mapping:\n");
2500         for(i=0;i<nb_ostreams;i++) {
2501             ost = ost_table[i];
2502             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2503                     input_streams[ost->source_index].file_index,
2504                     input_streams[ost->source_index].st->index,
2505                     ost->file_index,
2506                     ost->index);
2507             if (ost->sync_ist != &input_streams[ost->source_index])
2508                 fprintf(stderr, " [sync #%d.%d]",
2509                         ost->sync_ist->file_index,
2510                         ost->sync_ist->st->index);
2511             fprintf(stderr, "\n");
2512         }
2513     }
2514
2515     if (ret) {
2516         fprintf(stderr, "%s\n", error);
2517         goto fail;
2518     }
2519
2520     if (want_sdp) {
2521         print_sdp(output_files, nb_output_files);
2522     }
2523
2524     if (verbose >= 0)
2525         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2526     term_init();
2527
2528     timer_start = av_gettime();
2529
2530     for(; received_sigterm == 0;) {
2531         int file_index, ist_index;
2532         AVPacket pkt;
2533         double ipts_min;
2534         double opts_min;
2535
2536     redo:
2537         ipts_min= 1e100;
2538         opts_min= 1e100;
2539
2540         /* select the stream that we must read now by looking at the
2541            smallest output pts */
2542         file_index = -1;
2543         for(i=0;i<nb_ostreams;i++) {
2544             double ipts, opts;
2545             ost = ost_table[i];
2546             os = output_files[ost->file_index];
2547             ist = &input_streams[ost->source_index];
2548             if(ist->is_past_recording_time || no_packet[ist->file_index])
2549                 continue;
2550                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2551             ipts = (double)ist->pts;
2552             if (!input_files[ist->file_index].eof_reached){
2553                 if(ipts < ipts_min) {
2554                     ipts_min = ipts;
2555                     if(input_sync ) file_index = ist->file_index;
2556                 }
2557                 if(opts < opts_min) {
2558                     opts_min = opts;
2559                     if(!input_sync) file_index = ist->file_index;
2560                 }
2561             }
2562             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2563                 file_index= -1;
2564                 break;
2565             }
2566         }
2567         /* if none, if is finished */
2568         if (file_index < 0) {
2569             if(no_packet_count){
2570                 no_packet_count=0;
2571                 memset(no_packet, 0, sizeof(no_packet));
2572                 usleep(10000);
2573                 continue;
2574             }
2575             break;
2576         }
2577
2578         /* finish if limit size exhausted */
2579         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2580             break;
2581
2582         /* read a frame from it and output it in the fifo */
2583         is = input_files[file_index].ctx;
2584         ret= av_read_frame(is, &pkt);
2585         if(ret == AVERROR(EAGAIN)){
2586             no_packet[file_index]=1;
2587             no_packet_count++;
2588             continue;
2589         }
2590         if (ret < 0) {
2591             input_files[file_index].eof_reached = 1;
2592             if (opt_shortest)
2593                 break;
2594             else
2595                 continue;
2596         }
2597
2598         no_packet_count=0;
2599         memset(no_packet, 0, sizeof(no_packet));
2600
2601         if (do_pkt_dump) {
2602             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2603                              is->streams[pkt.stream_index]);
2604         }
2605         /* the following test is needed in case new streams appear
2606            dynamically in stream : we ignore them */
2607         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2608             goto discard_packet;
2609         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2610         ist = &input_streams[ist_index];
2611         if (ist->discard)
2612             goto discard_packet;
2613
2614         if (pkt.dts != AV_NOPTS_VALUE)
2615             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2616         if (pkt.pts != AV_NOPTS_VALUE)
2617             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2618
2619         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2620             && input_files_ts_scale[file_index][pkt.stream_index]){
2621             if(pkt.pts != AV_NOPTS_VALUE)
2622                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2623             if(pkt.dts != AV_NOPTS_VALUE)
2624                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2625         }
2626
2627 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2628         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2629             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2630             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2631             int64_t delta= pkt_dts - ist->next_pts;
2632             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2633                 input_files_ts_offset[ist->file_index]-= delta;
2634                 if (verbose > 2)
2635                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2636                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2637                 if(pkt.pts != AV_NOPTS_VALUE)
2638                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2639             }
2640         }
2641
2642         /* finish if recording time exhausted */
2643         if (recording_time != INT64_MAX &&
2644             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2645             ist->is_past_recording_time = 1;
2646             goto discard_packet;
2647         }
2648
2649         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2650         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2651
2652             if (verbose >= 0)
2653                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2654                         ist->file_index, ist->st->index);
2655             if (exit_on_error)
2656                 ffmpeg_exit(1);
2657             av_free_packet(&pkt);
2658             goto redo;
2659         }
2660
2661     discard_packet:
2662         av_free_packet(&pkt);
2663
2664         /* dump report by using the output first video and audio streams */
2665         print_report(output_files, ost_table, nb_ostreams, 0);
2666     }
2667
2668     /* at the end of stream, we must flush the decoder buffers */
2669     for (i = 0; i < nb_input_streams; i++) {
2670         ist = &input_streams[i];
2671         if (ist->decoding_needed) {
2672             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2673         }
2674     }
2675
2676     term_exit();
2677
2678     /* write the trailer if needed and close file */
2679     for(i=0;i<nb_output_files;i++) {
2680         os = output_files[i];
2681         av_write_trailer(os);
2682     }
2683
2684     /* dump report by using the first video and audio streams */
2685     print_report(output_files, ost_table, nb_ostreams, 1);
2686
2687     /* close each encoder */
2688     for(i=0;i<nb_ostreams;i++) {
2689         ost = ost_table[i];
2690         if (ost->encoding_needed) {
2691             av_freep(&ost->st->codec->stats_in);
2692             avcodec_close(ost->st->codec);
2693         }
2694 #if CONFIG_AVFILTER
2695         avfilter_graph_free(&ost->graph);
2696 #endif
2697     }
2698
2699     /* close each decoder */
2700     for (i = 0; i < nb_input_streams; i++) {
2701         ist = &input_streams[i];
2702         if (ist->decoding_needed) {
2703             avcodec_close(ist->st->codec);
2704         }
2705     }
2706
2707     /* finished ! */
2708     ret = 0;
2709
2710  fail:
2711     av_freep(&bit_buffer);
2712
2713     if (ost_table) {
2714         for(i=0;i<nb_ostreams;i++) {
2715             ost = ost_table[i];
2716             if (ost) {
2717                 if (ost->st->stream_copy)
2718                     av_freep(&ost->st->codec->extradata);
2719                 if (ost->logfile) {
2720                     fclose(ost->logfile);
2721                     ost->logfile = NULL;
2722                 }
2723                 av_fifo_free(ost->fifo); /* works even if fifo is not
2724                                              initialized but set to zero */
2725                 av_freep(&ost->st->codec->subtitle_header);
2726                 av_free(ost->pict_tmp.data[0]);
2727                 av_free(ost->forced_kf_pts);
2728                 if (ost->video_resample)
2729                     sws_freeContext(ost->img_resample_ctx);
2730                 if (ost->resample)
2731                     audio_resample_close(ost->resample);
2732                 if (ost->reformat_ctx)
2733                     av_audio_convert_free(ost->reformat_ctx);
2734                 av_free(ost);
2735             }
2736         }
2737         av_free(ost_table);
2738     }
2739     return ret;
2740 }
2741
2742 static int opt_format(const char *opt, const char *arg)
2743 {
2744     last_asked_format = arg;
2745     return 0;
2746 }
2747
2748 static int opt_video_rc_override_string(const char *opt, const char *arg)
2749 {
2750     video_rc_override_string = arg;
2751     return 0;
2752 }
2753
2754 static int opt_me_threshold(const char *opt, const char *arg)
2755 {
2756     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2757     return 0;
2758 }
2759
2760 static int opt_verbose(const char *opt, const char *arg)
2761 {
2762     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2763     return 0;
2764 }
2765
2766 static int opt_frame_rate(const char *opt, const char *arg)
2767 {
2768     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2769         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2770         ffmpeg_exit(1);
2771     }
2772     return 0;
2773 }
2774
2775 static int opt_bitrate(const char *opt, const char *arg)
2776 {
2777     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2778
2779     opt_default(opt, arg);
2780
2781     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2782         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2783
2784     return 0;
2785 }
2786
2787 static int opt_frame_crop(const char *opt, const char *arg)
2788 {
2789     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2790     return AVERROR(EINVAL);
2791 }
2792
2793 static int opt_frame_size(const char *opt, const char *arg)
2794 {
2795     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2796         fprintf(stderr, "Incorrect frame size\n");
2797         return AVERROR(EINVAL);
2798     }
2799     return 0;
2800 }
2801
2802 static int opt_pad(const char *opt, const char *arg) {
2803     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2804     return -1;
2805 }
2806
2807 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2808 {
2809     if (strcmp(arg, "list")) {
2810         frame_pix_fmt = av_get_pix_fmt(arg);
2811         if (frame_pix_fmt == PIX_FMT_NONE) {
2812             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2813             return AVERROR(EINVAL);
2814         }
2815     } else {
2816         show_pix_fmts();
2817         ffmpeg_exit(0);
2818     }
2819     return 0;
2820 }
2821
2822 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2823 {
2824     int x = 0, y = 0;
2825     double ar = 0;
2826     const char *p;
2827     char *end;
2828
2829     p = strchr(arg, ':');
2830     if (p) {
2831         x = strtol(arg, &end, 10);
2832         if (end == p)
2833             y = strtol(end+1, &end, 10);
2834         if (x > 0 && y > 0)
2835             ar = (double)x / (double)y;
2836     } else
2837         ar = strtod(arg, NULL);
2838
2839     if (!ar) {
2840         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2841         return AVERROR(EINVAL);
2842     }
2843     frame_aspect_ratio = ar;
2844     return 0;
2845 }
2846
2847 static int opt_metadata(const char *opt, const char *arg)
2848 {
2849     char *mid= strchr(arg, '=');
2850
2851     if(!mid){
2852         fprintf(stderr, "Missing =\n");
2853         ffmpeg_exit(1);
2854     }
2855     *mid++= 0;
2856
2857     av_dict_set(&metadata, arg, mid, 0);
2858
2859     return 0;
2860 }
2861
2862 static int opt_qscale(const char *opt, const char *arg)
2863 {
2864     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2865     if (video_qscale == 0) {
2866         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2867         return AVERROR(EINVAL);
2868     }
2869     return 0;
2870 }
2871
2872 static int opt_top_field_first(const char *opt, const char *arg)
2873 {
2874     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2875     return 0;
2876 }
2877
2878 static int opt_thread_count(const char *opt, const char *arg)
2879 {
2880     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2881 #if !HAVE_THREADS
2882     if (verbose >= 0)
2883         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2884 #endif
2885     return 0;
2886 }
2887
2888 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2889 {
2890     if (strcmp(arg, "list")) {
2891         audio_sample_fmt = av_get_sample_fmt(arg);
2892         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2893             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2894             return AVERROR(EINVAL);
2895         }
2896     } else {
2897         int i;
2898         char fmt_str[128];
2899         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2900             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2901         ffmpeg_exit(0);
2902     }
2903     return 0;
2904 }
2905
2906 static int opt_audio_rate(const char *opt, const char *arg)
2907 {
2908     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2909     return 0;
2910 }
2911
2912 static int opt_audio_channels(const char *opt, const char *arg)
2913 {
2914     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2915     return 0;
2916 }
2917
2918 static int opt_video_channel(const char *opt, const char *arg)
2919 {
2920     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2921     opt_default("channel", arg);
2922     return 0;
2923 }
2924
2925 static int opt_video_standard(const char *opt, const char *arg)
2926 {
2927     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2928     opt_default("standard", arg);
2929     return 0;
2930 }
2931
2932 static int opt_codec(int *pstream_copy, char **pcodec_name,
2933                       int codec_type, const char *arg)
2934 {
2935     av_freep(pcodec_name);
2936     if (!strcmp(arg, "copy")) {
2937         *pstream_copy = 1;
2938     } else {
2939         *pcodec_name = av_strdup(arg);
2940     }
2941     return 0;
2942 }
2943
2944 static int opt_audio_codec(const char *opt, const char *arg)
2945 {
2946     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2947 }
2948
2949 static int opt_video_codec(const char *opt, const char *arg)
2950 {
2951     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2952 }
2953
2954 static int opt_subtitle_codec(const char *opt, const char *arg)
2955 {
2956     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2957 }
2958
2959 static int opt_data_codec(const char *opt, const char *arg)
2960 {
2961     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2962 }
2963
2964 static int opt_codec_tag(const char *opt, const char *arg)
2965 {
2966     char *tail;
2967     uint32_t *codec_tag;
2968
2969     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2970                 !strcmp(opt, "vtag") ? &video_codec_tag :
2971                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2972     if (!codec_tag)
2973         return -1;
2974
2975     *codec_tag = strtol(arg, &tail, 0);
2976     if (!tail || *tail)
2977         *codec_tag = AV_RL32(arg);
2978
2979     return 0;
2980 }
2981
2982 static int opt_map(const char *opt, const char *arg)
2983 {
2984     AVStreamMap *m;
2985     char *p;
2986
2987     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2988     m = &stream_maps[nb_stream_maps-1];
2989
2990     m->file_index = strtol(arg, &p, 0);
2991     if (*p)
2992         p++;
2993
2994     m->stream_index = strtol(p, &p, 0);
2995     if (*p) {
2996         p++;
2997         m->sync_file_index = strtol(p, &p, 0);
2998         if (*p)
2999             p++;
3000         m->sync_stream_index = strtol(p, &p, 0);
3001     } else {
3002         m->sync_file_index = m->file_index;
3003         m->sync_stream_index = m->stream_index;
3004     }
3005     return 0;
3006 }
3007
3008 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3009 {
3010     *endptr = arg;
3011     if (*arg == ',') {
3012         *type = *(++arg);
3013         switch (*arg) {
3014         case 'g':
3015             break;
3016         case 's':
3017         case 'c':
3018         case 'p':
3019             *index = strtol(++arg, endptr, 0);
3020             break;
3021         default:
3022             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3023             ffmpeg_exit(1);
3024         }
3025     } else
3026         *type = 'g';
3027 }
3028
3029 static int opt_map_metadata(const char *opt, const char *arg)
3030 {
3031     AVMetaDataMap *m, *m1;
3032     char *p;
3033
3034     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3035                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3036
3037     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3038     m->file = strtol(arg, &p, 0);
3039     parse_meta_type(p, &m->type, &m->index, &p);
3040     if (*p)
3041         p++;
3042
3043     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3044     m1->file = strtol(p, &p, 0);
3045     parse_meta_type(p, &m1->type, &m1->index, &p);
3046
3047     if (m->type == 'g' || m1->type == 'g')
3048         metadata_global_autocopy = 0;
3049     if (m->type == 's' || m1->type == 's')
3050         metadata_streams_autocopy = 0;
3051     if (m->type == 'c' || m1->type == 'c')
3052         metadata_chapters_autocopy = 0;
3053
3054     return 0;
3055 }
3056
3057 static int opt_map_meta_data(const char *opt, const char *arg)
3058 {
3059     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3060                     "Use -map_metadata instead.\n");
3061     return opt_map_metadata(opt, arg);
3062 }
3063
3064 static int opt_map_chapters(const char *opt, const char *arg)
3065 {
3066     AVChapterMap *c;
3067     char *p;
3068
3069     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3070                               nb_chapter_maps + 1);
3071     c = &chapter_maps[nb_chapter_maps - 1];
3072     c->out_file = strtol(arg, &p, 0);
3073     if (*p)
3074         p++;
3075
3076     c->in_file = strtol(p, &p, 0);
3077     return 0;
3078 }
3079
3080 static int opt_input_ts_scale(const char *opt, const char *arg)
3081 {
3082     unsigned int stream;
3083     double scale;
3084     char *p;
3085
3086     stream = strtol(arg, &p, 0);
3087     if (*p)
3088         p++;
3089     scale= strtod(p, &p);
3090
3091     if(stream >= MAX_STREAMS)
3092         ffmpeg_exit(1);
3093
3094     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3095     input_files_ts_scale[nb_input_files][stream]= scale;
3096     return 0;
3097 }
3098
3099 static int opt_recording_time(const char *opt, const char *arg)
3100 {
3101     recording_time = parse_time_or_die(opt, arg, 1);
3102     return 0;
3103 }
3104
3105 static int opt_start_time(const char *opt, const char *arg)
3106 {
3107     start_time = parse_time_or_die(opt, arg, 1);
3108     return 0;
3109 }
3110
3111 static int opt_recording_timestamp(const char *opt, const char *arg)
3112 {
3113     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3114     return 0;
3115 }
3116
3117 static int opt_input_ts_offset(const char *opt, const char *arg)
3118 {
3119     input_ts_offset = parse_time_or_die(opt, arg, 1);
3120     return 0;
3121 }
3122
3123 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3124 {
3125     const char *codec_string = encoder ? "encoder" : "decoder";
3126     AVCodec *codec;
3127
3128     if(!name)
3129         return CODEC_ID_NONE;
3130     codec = encoder ?
3131         avcodec_find_encoder_by_name(name) :
3132         avcodec_find_decoder_by_name(name);
3133     if(!codec) {
3134         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3135         ffmpeg_exit(1);
3136     }
3137     if(codec->type != type) {
3138         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3139         ffmpeg_exit(1);
3140     }
3141     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3142        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3143         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3144                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3145                 codec_string, codec->name);
3146         codec = encoder ?
3147             avcodec_find_encoder(codec->id) :
3148             avcodec_find_decoder(codec->id);
3149         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3150             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3151                     codec_string, codec->name);
3152         ffmpeg_exit(1);
3153     }
3154     return codec->id;
3155 }
3156
3157 static int opt_input_file(const char *opt, const char *filename)
3158 {
3159     AVFormatContext *ic;
3160     AVInputFormat *file_iformat = NULL;
3161     int err, i, ret, rfps, rfps_base;
3162     int64_t timestamp;
3163     uint8_t buf[128];
3164
3165     if (last_asked_format) {
3166         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3167             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3168             ffmpeg_exit(1);
3169         }
3170         last_asked_format = NULL;
3171     }
3172
3173     if (!strcmp(filename, "-"))
3174         filename = "pipe:";
3175
3176     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3177                     !strcmp(filename, "/dev/stdin");
3178
3179     /* get default parameters from command line */
3180     ic = avformat_alloc_context();
3181     if (!ic) {
3182         print_error(filename, AVERROR(ENOMEM));
3183         ffmpeg_exit(1);
3184     }
3185     if (audio_sample_rate) {
3186         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3187         av_dict_set(&format_opts, "sample_rate", buf, 0);
3188     }
3189     if (audio_channels) {
3190         snprintf(buf, sizeof(buf), "%d", audio_channels);
3191         av_dict_set(&format_opts, "channels", buf, 0);
3192     }
3193     if (frame_rate.num) {
3194         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3195         av_dict_set(&format_opts, "framerate", buf, 0);
3196     }
3197     if (frame_width && frame_height) {
3198         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3199         av_dict_set(&format_opts, "video_size", buf, 0);
3200     }
3201     if (frame_pix_fmt != PIX_FMT_NONE)
3202         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3203
3204     ic->video_codec_id   =
3205         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3206                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3207     ic->audio_codec_id   =
3208         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3209                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3210     ic->subtitle_codec_id=
3211         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3212                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3213     ic->flags |= AVFMT_FLAG_NONBLOCK;
3214
3215     /* open the input file with generic libav function */
3216     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3217     if (err < 0) {
3218         print_error(filename, err);
3219         ffmpeg_exit(1);
3220     }
3221     assert_avoptions(format_opts);
3222
3223     if(opt_programid) {
3224         int i, j;
3225         int found=0;
3226         for(i=0; i<ic->nb_streams; i++){
3227             ic->streams[i]->discard= AVDISCARD_ALL;
3228         }
3229         for(i=0; i<ic->nb_programs; i++){
3230             AVProgram *p= ic->programs[i];
3231             if(p->id != opt_programid){
3232                 p->discard = AVDISCARD_ALL;
3233             }else{
3234                 found=1;
3235                 for(j=0; j<p->nb_stream_indexes; j++){
3236                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3237                 }
3238             }
3239         }
3240         if(!found){
3241             fprintf(stderr, "Specified program id not found\n");
3242             ffmpeg_exit(1);
3243         }
3244         opt_programid=0;
3245     }
3246
3247     ic->loop_input = loop_input;
3248
3249     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3250     for (i = 0; i < ic->nb_streams; i++) {
3251         AVCodecContext *dec = ic->streams[i]->codec;
3252         switch (dec->codec_type) {
3253         case AVMEDIA_TYPE_AUDIO:
3254             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3255                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3256                              NULL);
3257             break;
3258         case AVMEDIA_TYPE_VIDEO:
3259             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3260                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3261                              NULL);
3262             break;
3263         }
3264     }
3265
3266     /* If not enough info to get the stream parameters, we decode the
3267        first frames to get it. (used in mpeg case for example) */
3268     ret = av_find_stream_info(ic);
3269     if (ret < 0 && verbose >= 0) {
3270         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3271         av_close_input_file(ic);
3272         ffmpeg_exit(1);
3273     }
3274
3275     timestamp = start_time;
3276     /* add the stream start time */
3277     if (ic->start_time != AV_NOPTS_VALUE)
3278         timestamp += ic->start_time;
3279
3280     /* if seeking requested, we execute it */
3281     if (start_time != 0) {
3282         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3283         if (ret < 0) {
3284             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3285                     filename, (double)timestamp / AV_TIME_BASE);
3286         }
3287         /* reset seek info */
3288         start_time = 0;
3289     }
3290
3291     /* update the current parameters so that they match the one of the input stream */
3292     for(i=0;i<ic->nb_streams;i++) {
3293         AVStream *st = ic->streams[i];
3294         AVCodecContext *dec = st->codec;
3295         AVInputStream *ist;
3296
3297         dec->thread_count = thread_count;
3298         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3299
3300         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3301         ist = &input_streams[nb_input_streams - 1];
3302         ist->st = st;
3303         ist->file_index = nb_input_files;
3304         ist->discard = 1;
3305
3306         switch (dec->codec_type) {
3307         case AVMEDIA_TYPE_AUDIO:
3308             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3309             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3310             channel_layout    = dec->channel_layout;
3311             audio_sample_fmt  = dec->sample_fmt;
3312             if(audio_disable)
3313                 st->discard= AVDISCARD_ALL;
3314             break;
3315         case AVMEDIA_TYPE_VIDEO:
3316             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3317             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3318             rfps      = ic->streams[i]->r_frame_rate.num;
3319             rfps_base = ic->streams[i]->r_frame_rate.den;
3320             if (dec->lowres) {
3321                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3322                 dec->height >>= dec->lowres;
3323                 dec->width  >>= dec->lowres;
3324             }
3325             if(me_threshold)
3326                 dec->debug |= FF_DEBUG_MV;
3327
3328             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3329
3330                 if (verbose >= 0)
3331                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3332                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3333
3334                     (float)rfps / rfps_base, rfps, rfps_base);
3335             }
3336
3337             if(video_disable)
3338                 st->discard= AVDISCARD_ALL;
3339             else if(video_discard)
3340                 st->discard= video_discard;
3341             break;
3342         case AVMEDIA_TYPE_DATA:
3343             break;
3344         case AVMEDIA_TYPE_SUBTITLE:
3345             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3346             if(subtitle_disable)
3347                 st->discard = AVDISCARD_ALL;
3348             break;
3349         case AVMEDIA_TYPE_ATTACHMENT:
3350         case AVMEDIA_TYPE_UNKNOWN:
3351             break;
3352         default:
3353             abort();
3354         }
3355     }
3356
3357     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3358     /* dump the file content */
3359     if (verbose >= 0)
3360         av_dump_format(ic, nb_input_files, filename, 0);
3361
3362     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3363     input_files[nb_input_files - 1].ctx        = ic;
3364     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3365
3366     frame_rate    = (AVRational){0, 0};
3367     frame_pix_fmt = PIX_FMT_NONE;
3368     frame_height = 0;
3369     frame_width  = 0;
3370     audio_sample_rate = 0;
3371     audio_channels    = 0;
3372
3373     av_freep(&video_codec_name);
3374     av_freep(&audio_codec_name);
3375     av_freep(&subtitle_codec_name);
3376     uninit_opts();
3377     init_opts();
3378     return 0;
3379 }
3380
3381 static void check_inputs(int *has_video_ptr,
3382                          int *has_audio_ptr,
3383                          int *has_subtitle_ptr,
3384                          int *has_data_ptr)
3385 {
3386     int has_video, has_audio, has_subtitle, has_data, i, j;
3387     AVFormatContext *ic;
3388
3389     has_video = 0;
3390     has_audio = 0;
3391     has_subtitle = 0;
3392     has_data = 0;
3393
3394     for(j=0;j<nb_input_files;j++) {
3395         ic = input_files[j].ctx;
3396         for(i=0;i<ic->nb_streams;i++) {
3397             AVCodecContext *enc = ic->streams[i]->codec;
3398             switch(enc->codec_type) {
3399             case AVMEDIA_TYPE_AUDIO:
3400                 has_audio = 1;
3401                 break;
3402             case AVMEDIA_TYPE_VIDEO:
3403                 has_video = 1;
3404                 break;
3405             case AVMEDIA_TYPE_SUBTITLE:
3406                 has_subtitle = 1;
3407                 break;
3408             case AVMEDIA_TYPE_DATA:
3409             case AVMEDIA_TYPE_ATTACHMENT:
3410             case AVMEDIA_TYPE_UNKNOWN:
3411                 has_data = 1;
3412                 break;
3413             default:
3414                 abort();
3415             }
3416         }
3417     }
3418     *has_video_ptr = has_video;
3419     *has_audio_ptr = has_audio;
3420     *has_subtitle_ptr = has_subtitle;
3421     *has_data_ptr = has_data;
3422 }
3423
3424 static void new_video_stream(AVFormatContext *oc, int file_idx)
3425 {
3426     AVStream *st;
3427     AVOutputStream *ost;
3428     AVCodecContext *video_enc;
3429     enum CodecID codec_id = CODEC_ID_NONE;
3430     AVCodec *codec= NULL;
3431
3432     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3433     if (!st) {
3434         fprintf(stderr, "Could not alloc stream\n");
3435         ffmpeg_exit(1);
3436     }
3437     ost = new_output_stream(oc, file_idx);
3438
3439     if(!video_stream_copy){
3440         if (video_codec_name) {
3441             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3442                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3443             codec = avcodec_find_encoder_by_name(video_codec_name);
3444             ost->enc = codec;
3445         } else {
3446             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3447             codec = avcodec_find_encoder(codec_id);
3448         }
3449
3450         ost->frame_aspect_ratio = frame_aspect_ratio;
3451         frame_aspect_ratio = 0;
3452 #if CONFIG_AVFILTER
3453         ost->avfilter= vfilters;
3454         vfilters = NULL;
3455 #endif
3456     }
3457
3458     avcodec_get_context_defaults3(st->codec, codec);
3459     ost->bitstream_filters = video_bitstream_filters;
3460     video_bitstream_filters= NULL;
3461
3462     st->codec->thread_count= thread_count;
3463
3464     video_enc = st->codec;
3465
3466     if(video_codec_tag)
3467         video_enc->codec_tag= video_codec_tag;
3468
3469     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3470         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3471         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3472     }
3473
3474     if (video_stream_copy) {
3475         st->stream_copy = 1;
3476         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3477         video_enc->sample_aspect_ratio =
3478         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3479     } else {
3480         const char *p;
3481         int i;
3482
3483         if (frame_rate.num)
3484             ost->frame_rate = frame_rate;
3485         video_enc->codec_id = codec_id;
3486         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3487
3488         video_enc->width = frame_width;
3489         video_enc->height = frame_height;
3490         video_enc->pix_fmt = frame_pix_fmt;
3491         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3492
3493         if (intra_only)
3494             video_enc->gop_size = 0;
3495         if (video_qscale || same_quality) {
3496             video_enc->flags |= CODEC_FLAG_QSCALE;
3497             video_enc->global_quality=
3498                 st->quality = FF_QP2LAMBDA * video_qscale;
3499         }
3500
3501         if(intra_matrix)
3502             video_enc->intra_matrix = intra_matrix;
3503         if(inter_matrix)
3504             video_enc->inter_matrix = inter_matrix;
3505
3506         p= video_rc_override_string;
3507         for(i=0; p; i++){
3508             int start, end, q;
3509             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3510             if(e!=3){
3511                 fprintf(stderr, "error parsing rc_override\n");
3512                 ffmpeg_exit(1);
3513             }
3514             video_enc->rc_override=
3515                 av_realloc(video_enc->rc_override,
3516                            sizeof(RcOverride)*(i+1));
3517             video_enc->rc_override[i].start_frame= start;
3518             video_enc->rc_override[i].end_frame  = end;
3519             if(q>0){
3520                 video_enc->rc_override[i].qscale= q;
3521                 video_enc->rc_override[i].quality_factor= 1.0;
3522             }
3523             else{
3524                 video_enc->rc_override[i].qscale= 0;
3525                 video_enc->rc_override[i].quality_factor= -q/100.0;
3526             }
3527             p= strchr(p, '/');
3528             if(p) p++;
3529         }
3530         video_enc->rc_override_count=i;
3531         if (!video_enc->rc_initial_buffer_occupancy)
3532             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3533         video_enc->me_threshold= me_threshold;
3534         video_enc->intra_dc_precision= intra_dc_precision - 8;
3535
3536         if (do_psnr)
3537             video_enc->flags|= CODEC_FLAG_PSNR;
3538
3539         /* two pass mode */
3540         if (do_pass) {
3541             if (do_pass == 1) {
3542                 video_enc->flags |= CODEC_FLAG_PASS1;
3543             } else {
3544                 video_enc->flags |= CODEC_FLAG_PASS2;
3545             }
3546         }
3547
3548         if (forced_key_frames)
3549             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3550     }
3551     if (video_language) {
3552         av_dict_set(&st->metadata, "language", video_language, 0);
3553         av_freep(&video_language);
3554     }
3555
3556     /* reset some key parameters */
3557     video_disable = 0;
3558     av_freep(&video_codec_name);
3559     av_freep(&forced_key_frames);
3560     video_stream_copy = 0;
3561     frame_pix_fmt = PIX_FMT_NONE;
3562 }
3563
3564 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3565 {
3566     AVStream *st;
3567     AVOutputStream *ost;
3568     AVCodec *codec= NULL;
3569     AVCodecContext *audio_enc;
3570     enum CodecID codec_id = CODEC_ID_NONE;
3571
3572     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3573     if (!st) {
3574         fprintf(stderr, "Could not alloc stream\n");
3575         ffmpeg_exit(1);
3576     }
3577     ost = new_output_stream(oc, file_idx);
3578
3579     if(!audio_stream_copy){
3580         if (audio_codec_name) {
3581             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3582                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3583             codec = avcodec_find_encoder_by_name(audio_codec_name);
3584             ost->enc = codec;
3585         } else {
3586             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3587             codec = avcodec_find_encoder(codec_id);
3588         }
3589     }
3590
3591     avcodec_get_context_defaults3(st->codec, codec);
3592
3593     ost->bitstream_filters = audio_bitstream_filters;
3594     audio_bitstream_filters= NULL;
3595
3596     st->codec->thread_count= thread_count;
3597
3598     audio_enc = st->codec;
3599     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3600
3601     if(audio_codec_tag)
3602         audio_enc->codec_tag= audio_codec_tag;
3603
3604     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3605         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3606         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3607     }
3608     if (audio_stream_copy) {
3609         st->stream_copy = 1;
3610     } else {
3611         audio_enc->codec_id = codec_id;
3612         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3613
3614         if (audio_qscale > QSCALE_NONE) {
3615             audio_enc->flags |= CODEC_FLAG_QSCALE;
3616             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3617         }
3618         if (audio_channels)
3619             audio_enc->channels = audio_channels;
3620         audio_enc->sample_fmt = audio_sample_fmt;
3621         if (audio_sample_rate)
3622             audio_enc->sample_rate = audio_sample_rate;
3623         audio_enc->channel_layout = channel_layout;
3624         choose_sample_fmt(st, codec);
3625     }
3626     if (audio_language) {
3627         av_dict_set(&st->metadata, "language", audio_language, 0);
3628         av_freep(&audio_language);
3629     }
3630
3631     /* reset some key parameters */
3632     audio_disable = 0;
3633     av_freep(&audio_codec_name);
3634     audio_stream_copy = 0;
3635 }
3636
3637 static void new_data_stream(AVFormatContext *oc, int file_idx)
3638 {
3639     AVStream *st;
3640     AVCodec *codec=NULL;
3641     AVCodecContext *data_enc;
3642