ffmpeg: prefer "dec" over "ist->st->codec" in do_video_out() snippet
[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 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_KBHIT
73 #include <conio.h>
74 #endif
75 #include <time.h>
76
77 #include "cmdutils.h"
78
79 #include "libavutil/avassert.h"
80
81 const char program_name[] = "ffmpeg";
82 const int program_birth_year = 2000;
83
84 /* select an input stream for an output stream */
85 typedef struct AVStreamMap {
86     int file_index;
87     int stream_index;
88     int sync_file_index;
89     int sync_stream_index;
90 } AVStreamMap;
91
92 /**
93  * select an input file for an output file
94  */
95 typedef struct AVMetaDataMap {
96     int  file;      //< file index
97     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
98     int  index;     //< stream/chapter/program number
99 } AVMetaDataMap;
100
101 typedef struct AVChapterMap {
102     int in_file;
103     int out_file;
104 } AVChapterMap;
105
106 static const OptionDef options[];
107
108 #define MAX_FILES 100
109 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
110
111 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
112
113 static const char *last_asked_format = NULL;
114 static AVFormatContext *input_files[MAX_FILES];
115 static int64_t input_files_ts_offset[MAX_FILES];
116 static double *input_files_ts_scale[MAX_FILES] = {NULL};
117 static AVCodec **input_codecs = NULL;
118 static int nb_input_files = 0;
119 static int nb_input_codecs = 0;
120 static int nb_input_files_ts_scale[MAX_FILES] = {0};
121
122 static AVFormatContext *output_files[MAX_FILES];
123 static AVCodec **output_codecs = NULL;
124 static int nb_output_files = 0;
125 static int nb_output_codecs = 0;
126
127 static AVStreamMap *stream_maps = NULL;
128 static int nb_stream_maps;
129
130 /* first item specifies output metadata, second is input */
131 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
132 static int nb_meta_data_maps;
133 static int metadata_global_autocopy   = 1;
134 static int metadata_streams_autocopy  = 1;
135 static int metadata_chapters_autocopy = 1;
136
137 static AVChapterMap *chapter_maps = NULL;
138 static int nb_chapter_maps;
139
140 /* indexed by output file stream index */
141 static int *streamid_map = NULL;
142 static int nb_streamid_map = 0;
143
144 static int frame_width  = 0;
145 static int frame_height = 0;
146 static float frame_aspect_ratio = 0;
147 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 static AVFilterGraph *graph = NULL;
171 #endif
172
173 static int intra_only = 0;
174 static int audio_sample_rate = 44100;
175 static int64_t channel_layout = 0;
176 #define QSCALE_NONE -99999
177 static float audio_qscale = QSCALE_NONE;
178 static int audio_disable = 0;
179 static int audio_channels = 1;
180 static char  *audio_codec_name = NULL;
181 static unsigned int audio_codec_tag = 0;
182 static char *audio_language = NULL;
183
184 static int subtitle_disable = 0;
185 static char *subtitle_codec_name = NULL;
186 static char *subtitle_language = NULL;
187 static unsigned int subtitle_codec_tag = 0;
188
189 static int data_disable = 0;
190 static char *data_codec_name = NULL;
191 static unsigned int data_codec_tag = 0;
192
193 static float mux_preload= 0.5;
194 static float mux_max_delay= 0.7;
195
196 static int64_t recording_time = INT64_MAX;
197 static int64_t start_time = 0;
198 static int64_t recording_timestamp = 0;
199 static int64_t input_ts_offset = 0;
200 static int file_overwrite = 0;
201 static AVMetadata *metadata;
202 static int do_benchmark = 0;
203 static int do_hex_dump = 0;
204 static int do_pkt_dump = 0;
205 static int do_psnr = 0;
206 static int do_pass = 0;
207 static char *pass_logfilename_prefix = NULL;
208 static int audio_stream_copy = 0;
209 static int video_stream_copy = 0;
210 static int subtitle_stream_copy = 0;
211 static int data_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static int64_t timer_start;
249
250 static uint8_t *audio_buf;
251 static uint8_t *audio_out;
252 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
253
254 static short *samples;
255
256 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
257 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
259
260 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
261
262 struct AVInputStream;
263
264 typedef struct AVOutputStream {
265     int file_index;          /* file index */
266     int index;               /* stream index in the output file */
267     int source_index;        /* AVInputStream index */
268     AVStream *st;            /* stream in the output file */
269     int encoding_needed;     /* true if encoding needed for this stream */
270     int frame_number;
271     /* input pts and corresponding output pts
272        for A/V sync */
273     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
274     struct AVInputStream *sync_ist; /* input stream to sync against */
275     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
276     AVBitStreamFilterContext *bitstream_filters;
277     /* video only */
278     int video_resample;
279     AVFrame pict_tmp;      /* temporary image for resampling */
280     struct SwsContext *img_resample_ctx; /* for image resampling */
281     int resample_height;
282     int resample_width;
283     int resample_pix_fmt;
284
285     /* forced key frames */
286     int64_t *forced_kf_pts;
287     int forced_kf_count;
288     int forced_kf_index;
289
290     /* audio only */
291     int audio_resample;
292     ReSampleContext *resample; /* for audio resampling */
293     int resample_sample_fmt;
294     int resample_channels;
295     int resample_sample_rate;
296     int reformat_pair;
297     AVAudioConvert *reformat_ctx;
298     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
299     FILE *logfile;
300
301    int sws_flags;
302 } AVOutputStream;
303
304 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
305 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
306
307 typedef struct AVInputStream {
308     int file_index;
309     int index;
310     AVStream *st;
311     int discard;             /* true if stream data should be discarded */
312     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
313     int64_t sample_index;      /* current sample */
314
315     int64_t       start;     /* time when read started */
316     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
317                                 is not defined */
318     int64_t       pts;       /* current pts */
319     PtsCorrectionContext pts_ctx;
320     int is_start;            /* is 1 at the start and after a discontinuity */
321     int showed_multi_packet_warning;
322     int is_past_recording_time;
323 #if CONFIG_AVFILTER
324     AVFilterContext *output_video_filter;
325     AVFilterContext *input_video_filter;
326     AVFrame *filter_frame;
327     int has_filter_frame;
328     AVFilterBufferRef *picref;
329 #endif
330 } AVInputStream;
331
332 typedef struct AVInputFile {
333     int eof_reached;      /* true if eof reached */
334     int ist_index;        /* index of first stream in ist_table */
335     int buffer_size;      /* current total buffer size */
336     int nb_streams;       /* nb streams we are aware of */
337 } AVInputFile;
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     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(&ist->input_video_filter, avfilter_get_by_name("buffer"),
364                                        "src", args, NULL, graph);
365     if (ret < 0)
366         return ret;
367     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
368                                        "out", NULL, &ffsink_ctx, graph);
369     if (ret < 0)
370         return ret;
371     last_filter = ist->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, 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     graph->scale_sws_opts = av_strdup(args);
388
389     if (vfilters) {
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 = ist->output_video_filter;
400         inputs->pad_idx = 0;
401         inputs->next    = NULL;
402
403         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
404             return ret;
405         av_freep(&vfilters);
406     } else {
407         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
408             return ret;
409     }
410
411     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
412         return ret;
413
414     codec->width  = ist->output_video_filter->inputs[0]->w;
415     codec->height = ist->output_video_filter->inputs[0]->h;
416     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
417         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
418
419     return 0;
420 }
421 #endif /* CONFIG_AVFILTER */
422
423 static void term_exit(void)
424 {
425     av_log(NULL, AV_LOG_QUIET, "");
426 }
427
428 static volatile int received_sigterm = 0;
429
430 static void
431 sigterm_handler(int sig)
432 {
433     received_sigterm = sig;
434     term_exit();
435 }
436
437 static void term_init(void)
438 {
439     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
440     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
441 #ifdef SIGXCPU
442     signal(SIGXCPU, sigterm_handler);
443 #endif
444 }
445
446 /* read a key without blocking */
447 static int read_key(void)
448 {
449 #if HAVE_KBHIT
450     if(kbhit())
451         return(getch());
452 #endif
453     return -1;
454 }
455
456 static int decode_interrupt_cb(void)
457 {
458     return q_pressed || (q_pressed = read_key() == 'q');
459 }
460
461 static int ffmpeg_exit(int ret)
462 {
463     int i;
464
465     /* close files */
466     for(i=0;i<nb_output_files;i++) {
467         AVFormatContext *s = output_files[i];
468         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
469             avio_close(s->pb);
470         avformat_free_context(s);
471         av_free(output_streams_for_file[i]);
472     }
473     for(i=0;i<nb_input_files;i++) {
474         av_close_input_file(input_files[i]);
475         av_free(input_files_ts_scale[i]);
476     }
477
478     av_free(intra_matrix);
479     av_free(inter_matrix);
480
481     if (vstats_file)
482         fclose(vstats_file);
483     av_free(vstats_filename);
484
485     av_free(streamid_map);
486     av_free(input_codecs);
487     av_free(output_codecs);
488     av_free(stream_maps);
489     av_free(meta_data_maps);
490
491     av_free(video_codec_name);
492     av_free(audio_codec_name);
493     av_free(subtitle_codec_name);
494     av_free(data_codec_name);
495
496     av_free(video_standard);
497
498     uninit_opts();
499     av_free(audio_buf);
500     av_free(audio_out);
501     allocated_audio_buf_size= allocated_audio_out_size= 0;
502     av_free(samples);
503
504 #if CONFIG_AVFILTER
505     avfilter_uninit();
506 #endif
507
508     if (received_sigterm) {
509         fprintf(stderr,
510             "Received signal %d: terminating.\n",
511             (int) received_sigterm);
512         exit (255);
513     }
514
515     exit(ret); /* not all OS-es handle main() return value */
516     return ret;
517 }
518
519 /* similar to ff_dynarray_add() and av_fast_realloc() */
520 static void *grow_array(void *array, int elem_size, int *size, int new_size)
521 {
522     if (new_size >= INT_MAX / elem_size) {
523         fprintf(stderr, "Array too big.\n");
524         ffmpeg_exit(1);
525     }
526     if (*size < new_size) {
527         uint8_t *tmp = av_realloc(array, new_size*elem_size);
528         if (!tmp) {
529             fprintf(stderr, "Could not alloc buffer.\n");
530             ffmpeg_exit(1);
531         }
532         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
533         *size = new_size;
534         return tmp;
535     }
536     return array;
537 }
538
539 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
540 {
541     if(codec && codec->sample_fmts){
542         const enum AVSampleFormat *p= codec->sample_fmts;
543         for(; *p!=-1; p++){
544             if(*p == st->codec->sample_fmt)
545                 break;
546         }
547         if (*p == -1) {
548             av_log(NULL, AV_LOG_WARNING,
549                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
550                    av_get_sample_fmt_name(st->codec->sample_fmt),
551                    codec->name,
552                    av_get_sample_fmt_name(codec->sample_fmts[0]));
553             st->codec->sample_fmt = codec->sample_fmts[0];
554         }
555     }
556 }
557
558 static void choose_sample_rate(AVStream *st, AVCodec *codec)
559 {
560     if(codec && codec->supported_samplerates){
561         const int *p= codec->supported_samplerates;
562         int best=0;
563         int best_dist=INT_MAX;
564         for(; *p; p++){
565             int dist= abs(st->codec->sample_rate - *p);
566             if(dist < best_dist){
567                 best_dist= dist;
568                 best= *p;
569             }
570         }
571         if(best_dist){
572             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
573         }
574         st->codec->sample_rate= best;
575     }
576 }
577
578 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
579 {
580     if(codec && codec->pix_fmts){
581         const enum PixelFormat *p= codec->pix_fmts;
582         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
583             if(st->codec->codec_id==CODEC_ID_MJPEG){
584                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
585             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
586                 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};
587             }
588         }
589         for(; *p!=-1; p++){
590             if(*p == st->codec->pix_fmt)
591                 break;
592         }
593         if (*p == -1) {
594             if(st->codec->pix_fmt != PIX_FMT_NONE)
595                 av_log(NULL, AV_LOG_WARNING,
596                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
597                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
598                         codec->name,
599                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
600             st->codec->pix_fmt = codec->pix_fmts[0];
601         }
602     }
603 }
604
605 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
606 {
607     int idx = oc->nb_streams - 1;
608     AVOutputStream *ost;
609
610     output_streams_for_file[file_idx] =
611         grow_array(output_streams_for_file[file_idx],
612                    sizeof(*output_streams_for_file[file_idx]),
613                    &nb_output_streams_for_file[file_idx],
614                    oc->nb_streams);
615     ost = output_streams_for_file[file_idx][idx] =
616         av_mallocz(sizeof(AVOutputStream));
617     if (!ost) {
618         fprintf(stderr, "Could not alloc output stream\n");
619         ffmpeg_exit(1);
620     }
621     ost->file_index = file_idx;
622     ost->index = idx;
623
624     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
625     return ost;
626 }
627
628 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
629 {
630     int i, err;
631     AVFormatContext *ic;
632     int nopts = 0;
633
634     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
635     if (err < 0)
636         return err;
637     /* copy stream format */
638     s->nb_streams = 0;
639     for(i=0;i<ic->nb_streams;i++) {
640         AVStream *st;
641         AVCodec *codec;
642
643         s->nb_streams++;
644
645         // FIXME: a more elegant solution is needed
646         st = av_mallocz(sizeof(AVStream));
647         memcpy(st, ic->streams[i], sizeof(AVStream));
648         st->codec = avcodec_alloc_context();
649         if (!st->codec) {
650             print_error(filename, AVERROR(ENOMEM));
651             ffmpeg_exit(1);
652         }
653         avcodec_copy_context(st->codec, ic->streams[i]->codec);
654         s->streams[i] = st;
655
656         codec = avcodec_find_encoder(st->codec->codec_id);
657         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
658             if (audio_stream_copy) {
659                 st->stream_copy = 1;
660             } else
661                 choose_sample_fmt(st, codec);
662         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
663             if (video_stream_copy) {
664                 st->stream_copy = 1;
665             } else
666                 choose_pixel_fmt(st, codec);
667         }
668
669         if(st->codec->flags & CODEC_FLAG_BITEXACT)
670             nopts = 1;
671
672         new_output_stream(s, nb_output_files);
673     }
674
675     if (!nopts)
676         s->timestamp = av_gettime();
677
678     av_close_input_file(ic);
679     return 0;
680 }
681
682 static double
683 get_sync_ipts(const AVOutputStream *ost)
684 {
685     const AVInputStream *ist = ost->sync_ist;
686     return (double)(ist->pts - start_time)/AV_TIME_BASE;
687 }
688
689 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
690     int ret;
691
692     while(bsfc){
693         AVPacket new_pkt= *pkt;
694         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
695                                           &new_pkt.data, &new_pkt.size,
696                                           pkt->data, pkt->size,
697                                           pkt->flags & AV_PKT_FLAG_KEY);
698         if(a>0){
699             av_free_packet(pkt);
700             new_pkt.destruct= av_destruct_packet;
701         } else if(a<0){
702             fprintf(stderr, "%s failed for stream %d, codec %s",
703                     bsfc->filter->name, pkt->stream_index,
704                     avctx->codec ? avctx->codec->name : "copy");
705             print_error("", a);
706             if (exit_on_error)
707                 ffmpeg_exit(1);
708         }
709         *pkt= new_pkt;
710
711         bsfc= bsfc->next;
712     }
713
714     ret= av_interleaved_write_frame(s, pkt);
715     if(ret < 0){
716         print_error("av_interleaved_write_frame()", ret);
717         ffmpeg_exit(1);
718     }
719 }
720
721 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
722
723 static void do_audio_out(AVFormatContext *s,
724                          AVOutputStream *ost,
725                          AVInputStream *ist,
726                          unsigned char *buf, int size)
727 {
728     uint8_t *buftmp;
729     int64_t audio_out_size, audio_buf_size;
730     int64_t allocated_for_size= size;
731
732     int size_out, frame_bytes, ret, resample_changed;
733     AVCodecContext *enc= ost->st->codec;
734     AVCodecContext *dec= ist->st->codec;
735     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
736     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
737     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
738
739 need_realloc:
740     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
741     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
742     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
743     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
744     audio_buf_size*= osize*enc->channels;
745
746     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
747     if(coded_bps > 8*osize)
748         audio_out_size= audio_out_size * coded_bps / (8*osize);
749     audio_out_size += FF_MIN_BUFFER_SIZE;
750
751     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
752         fprintf(stderr, "Buffer sizes too large\n");
753         ffmpeg_exit(1);
754     }
755
756     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
757     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
758     if (!audio_buf || !audio_out){
759         fprintf(stderr, "Out of memory in do_audio_out\n");
760         ffmpeg_exit(1);
761     }
762
763     if (enc->channels != dec->channels)
764         ost->audio_resample = 1;
765
766     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
767                        ost->resample_channels    != dec->channels   ||
768                        ost->resample_sample_rate != dec->sample_rate;
769
770     if ((ost->audio_resample && !ost->resample) || resample_changed) {
771         if (resample_changed) {
772             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",
773                    ist->file_index, ist->index,
774                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
775                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
776             ost->resample_sample_fmt  = dec->sample_fmt;
777             ost->resample_channels    = dec->channels;
778             ost->resample_sample_rate = dec->sample_rate;
779             if (ost->resample)
780                 audio_resample_close(ost->resample);
781         }
782         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
783         if (audio_sync_method <= 1 &&
784             ost->resample_sample_fmt  == enc->sample_fmt &&
785             ost->resample_channels    == enc->channels   &&
786             ost->resample_sample_rate == enc->sample_rate) {
787             ost->resample = NULL;
788             ost->audio_resample = 0;
789         } else {
790             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
791                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
792             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
793                                                    enc->sample_rate, dec->sample_rate,
794                                                    enc->sample_fmt,  dec->sample_fmt,
795                                                    16, 10, 0, 0.8);
796             if (!ost->resample) {
797                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
798                         dec->channels, dec->sample_rate,
799                         enc->channels, enc->sample_rate);
800                 ffmpeg_exit(1);
801             }
802         }
803     }
804
805 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
806     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
807         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
808         if (ost->reformat_ctx)
809             av_audio_convert_free(ost->reformat_ctx);
810         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
811                                                    dec->sample_fmt, 1, NULL, 0);
812         if (!ost->reformat_ctx) {
813             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
814                 av_get_sample_fmt_name(dec->sample_fmt),
815                 av_get_sample_fmt_name(enc->sample_fmt));
816             ffmpeg_exit(1);
817         }
818         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
819     }
820
821     if(audio_sync_method){
822         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
823                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
824         double idelta= delta*dec->sample_rate / enc->sample_rate;
825         int byte_delta= ((int)idelta)*2*dec->channels;
826
827         //FIXME resample delay
828         if(fabs(delta) > 50){
829             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
830                 if(byte_delta < 0){
831                     byte_delta= FFMAX(byte_delta, -size);
832                     size += byte_delta;
833                     buf  -= byte_delta;
834                     if(verbose > 2)
835                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
836                     if(!size)
837                         return;
838                     ist->is_start=0;
839                 }else{
840                     static uint8_t *input_tmp= NULL;
841                     input_tmp= av_realloc(input_tmp, byte_delta + size);
842
843                     if(byte_delta > allocated_for_size - size){
844                         allocated_for_size= byte_delta + (int64_t)size;
845                         goto need_realloc;
846                     }
847                     ist->is_start=0;
848
849                     memset(input_tmp, 0, byte_delta);
850                     memcpy(input_tmp + byte_delta, buf, size);
851                     buf= input_tmp;
852                     size += byte_delta;
853                     if(verbose > 2)
854                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
855                 }
856             }else if(audio_sync_method>1){
857                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
858                 av_assert0(ost->audio_resample);
859                 if(verbose > 2)
860                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
861 //                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));
862                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
863             }
864         }
865     }else
866         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
867                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
868
869     if (ost->audio_resample) {
870         buftmp = audio_buf;
871         size_out = audio_resample(ost->resample,
872                                   (short *)buftmp, (short *)buf,
873                                   size / (dec->channels * isize));
874         size_out = size_out * enc->channels * osize;
875     } else {
876         buftmp = buf;
877         size_out = size;
878     }
879
880     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
881         const void *ibuf[6]= {buftmp};
882         void *obuf[6]= {audio_buf};
883         int istride[6]= {isize};
884         int ostride[6]= {osize};
885         int len= size_out/istride[0];
886         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
887             printf("av_audio_convert() failed\n");
888             if (exit_on_error)
889                 ffmpeg_exit(1);
890             return;
891         }
892         buftmp = audio_buf;
893         size_out = len*osize;
894     }
895
896     /* now encode as many frames as possible */
897     if (enc->frame_size > 1) {
898         /* output resampled raw samples */
899         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
900             fprintf(stderr, "av_fifo_realloc2() failed\n");
901             ffmpeg_exit(1);
902         }
903         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
904
905         frame_bytes = enc->frame_size * osize * enc->channels;
906
907         while (av_fifo_size(ost->fifo) >= frame_bytes) {
908             AVPacket pkt;
909             av_init_packet(&pkt);
910
911             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
912
913             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
914
915             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
916                                        (short *)audio_buf);
917             if (ret < 0) {
918                 fprintf(stderr, "Audio encoding failed\n");
919                 ffmpeg_exit(1);
920             }
921             audio_size += ret;
922             pkt.stream_index= ost->index;
923             pkt.data= audio_out;
924             pkt.size= ret;
925             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
926                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
927             pkt.flags |= AV_PKT_FLAG_KEY;
928             write_frame(s, &pkt, enc, ost->bitstream_filters);
929
930             ost->sync_opts += enc->frame_size;
931         }
932     } else {
933         AVPacket pkt;
934         av_init_packet(&pkt);
935
936         ost->sync_opts += size_out / (osize * enc->channels);
937
938         /* output a pcm frame */
939         /* determine the size of the coded buffer */
940         size_out /= osize;
941         if (coded_bps)
942             size_out = size_out*coded_bps/8;
943
944         if(size_out > audio_out_size){
945             fprintf(stderr, "Internal error, buffer size too small\n");
946             ffmpeg_exit(1);
947         }
948
949         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
950         ret = avcodec_encode_audio(enc, audio_out, size_out,
951                                    (short *)buftmp);
952         if (ret < 0) {
953             fprintf(stderr, "Audio encoding failed\n");
954             ffmpeg_exit(1);
955         }
956         audio_size += ret;
957         pkt.stream_index= ost->index;
958         pkt.data= audio_out;
959         pkt.size= ret;
960         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
961             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
962         pkt.flags |= AV_PKT_FLAG_KEY;
963         write_frame(s, &pkt, enc, ost->bitstream_filters);
964     }
965 }
966
967 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
968 {
969     AVCodecContext *dec;
970     AVPicture *picture2;
971     AVPicture picture_tmp;
972     uint8_t *buf = 0;
973
974     dec = ist->st->codec;
975
976     /* deinterlace : must be done before any resize */
977     if (do_deinterlace) {
978         int size;
979
980         /* create temporary picture */
981         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
982         buf = av_malloc(size);
983         if (!buf)
984             return;
985
986         picture2 = &picture_tmp;
987         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
988
989         if(avpicture_deinterlace(picture2, picture,
990                                  dec->pix_fmt, dec->width, dec->height) < 0) {
991             /* if error, do not deinterlace */
992             fprintf(stderr, "Deinterlacing failed\n");
993             av_free(buf);
994             buf = NULL;
995             picture2 = picture;
996         }
997     } else {
998         picture2 = picture;
999     }
1000
1001     if (picture != picture2)
1002         *picture = *picture2;
1003     *bufp = buf;
1004 }
1005
1006 /* we begin to correct av delay at this threshold */
1007 #define AV_DELAY_MAX 0.100
1008
1009 static void do_subtitle_out(AVFormatContext *s,
1010                             AVOutputStream *ost,
1011                             AVInputStream *ist,
1012                             AVSubtitle *sub,
1013                             int64_t pts)
1014 {
1015     static uint8_t *subtitle_out = NULL;
1016     int subtitle_out_max_size = 1024 * 1024;
1017     int subtitle_out_size, nb, i;
1018     AVCodecContext *enc;
1019     AVPacket pkt;
1020
1021     if (pts == AV_NOPTS_VALUE) {
1022         fprintf(stderr, "Subtitle packets must have a pts\n");
1023         if (exit_on_error)
1024             ffmpeg_exit(1);
1025         return;
1026     }
1027
1028     enc = ost->st->codec;
1029
1030     if (!subtitle_out) {
1031         subtitle_out = av_malloc(subtitle_out_max_size);
1032     }
1033
1034     /* Note: DVB subtitle need one packet to draw them and one other
1035        packet to clear them */
1036     /* XXX: signal it in the codec context ? */
1037     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1038         nb = 2;
1039     else
1040         nb = 1;
1041
1042     for(i = 0; i < nb; i++) {
1043         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1044         // start_display_time is required to be 0
1045         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1046         sub->end_display_time -= sub->start_display_time;
1047         sub->start_display_time = 0;
1048         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1049                                                     subtitle_out_max_size, sub);
1050         if (subtitle_out_size < 0) {
1051             fprintf(stderr, "Subtitle encoding failed\n");
1052             ffmpeg_exit(1);
1053         }
1054
1055         av_init_packet(&pkt);
1056         pkt.stream_index = ost->index;
1057         pkt.data = subtitle_out;
1058         pkt.size = subtitle_out_size;
1059         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1060         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1061             /* XXX: the pts correction is handled here. Maybe handling
1062                it in the codec would be better */
1063             if (i == 0)
1064                 pkt.pts += 90 * sub->start_display_time;
1065             else
1066                 pkt.pts += 90 * sub->end_display_time;
1067         }
1068         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1069     }
1070 }
1071
1072 static int bit_buffer_size= 1024*256;
1073 static uint8_t *bit_buffer= NULL;
1074
1075 static void do_video_out(AVFormatContext *s,
1076                          AVOutputStream *ost,
1077                          AVInputStream *ist,
1078                          AVFrame *in_picture,
1079                          int *frame_size)
1080 {
1081     int nb_frames, i, ret;
1082     AVFrame *final_picture, *formatted_picture, *resampling_dst;
1083     AVCodecContext *enc, *dec;
1084     double sync_ipts;
1085
1086     enc = ost->st->codec;
1087     dec = ist->st->codec;
1088
1089     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1090
1091     /* by default, we output a single frame */
1092     nb_frames = 1;
1093
1094     *frame_size = 0;
1095
1096     if(video_sync_method){
1097         double vdelta = sync_ipts - ost->sync_opts;
1098         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1099         if (vdelta < -1.1)
1100             nb_frames = 0;
1101         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1102             if(vdelta<=-0.6){
1103                 nb_frames=0;
1104             }else if(vdelta>0.6)
1105                 ost->sync_opts= lrintf(sync_ipts);
1106         }else if (vdelta > 1.1)
1107             nb_frames = lrintf(vdelta);
1108 //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);
1109         if (nb_frames == 0){
1110             ++nb_frames_drop;
1111             if (verbose>2)
1112                 fprintf(stderr, "*** drop!\n");
1113         }else if (nb_frames > 1) {
1114             nb_frames_dup += nb_frames - 1;
1115             if (verbose>2)
1116                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1117         }
1118     }else
1119         ost->sync_opts= lrintf(sync_ipts);
1120
1121     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1122     if (nb_frames <= 0)
1123         return;
1124
1125     formatted_picture = in_picture;
1126     final_picture = formatted_picture;
1127     resampling_dst = &ost->pict_tmp;
1128
1129     if (   ost->resample_height != ist->st->codec->height
1130         || ost->resample_width  != ist->st->codec->width
1131         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1132         av_log(NULL, AV_LOG_INFO,
1133                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1134                ist->file_index, ist->index,
1135                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
1136                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
1137         if(!ost->video_resample)
1138             ffmpeg_exit(1);
1139     }
1140
1141 #if !CONFIG_AVFILTER
1142     if (ost->video_resample) {
1143         final_picture = &ost->pict_tmp;
1144         if(  ost->resample_height != ist->st->codec->height
1145           || ost->resample_width  != ist->st->codec->width
1146           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1147
1148             /* initialize a new scaler context */
1149             sws_freeContext(ost->img_resample_ctx);
1150             ost->img_resample_ctx = sws_getContext(
1151                 ist->st->codec->width,
1152                 ist->st->codec->height,
1153                 ist->st->codec->pix_fmt,
1154                 ost->st->codec->width,
1155                 ost->st->codec->height,
1156                 ost->st->codec->pix_fmt,
1157                 ost->sws_flags, NULL, NULL, NULL);
1158             if (ost->img_resample_ctx == NULL) {
1159                 fprintf(stderr, "Cannot get resampling context\n");
1160                 ffmpeg_exit(1);
1161             }
1162         }
1163         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1164               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1165     }
1166 #endif
1167
1168     /* duplicates frame if needed */
1169     for(i=0;i<nb_frames;i++) {
1170         AVPacket pkt;
1171         av_init_packet(&pkt);
1172         pkt.stream_index= ost->index;
1173
1174         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1175             /* raw pictures are written as AVPicture structure to
1176                avoid any copies. We support temorarily the older
1177                method. */
1178             AVFrame* old_frame = enc->coded_frame;
1179             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1180             pkt.data= (uint8_t *)final_picture;
1181             pkt.size=  sizeof(AVPicture);
1182             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1183             pkt.flags |= AV_PKT_FLAG_KEY;
1184
1185             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1186             enc->coded_frame = old_frame;
1187         } else {
1188             AVFrame big_picture;
1189
1190             big_picture= *final_picture;
1191             /* better than nothing: use input picture interlaced
1192                settings */
1193             big_picture.interlaced_frame = in_picture->interlaced_frame;
1194             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1195                 if(top_field_first == -1)
1196                     big_picture.top_field_first = in_picture->top_field_first;
1197                 else
1198                     big_picture.top_field_first = top_field_first;
1199             }
1200
1201             /* handles sameq here. This is not correct because it may
1202                not be a global option */
1203             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1204             if(!me_threshold)
1205                 big_picture.pict_type = 0;
1206 //            big_picture.pts = AV_NOPTS_VALUE;
1207             big_picture.pts= ost->sync_opts;
1208 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1209 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1210             if (ost->forced_kf_index < ost->forced_kf_count &&
1211                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1212                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1213                 ost->forced_kf_index++;
1214             }
1215             ret = avcodec_encode_video(enc,
1216                                        bit_buffer, bit_buffer_size,
1217                                        &big_picture);
1218             if (ret < 0) {
1219                 fprintf(stderr, "Video encoding failed\n");
1220                 ffmpeg_exit(1);
1221             }
1222
1223             if(ret>0){
1224                 pkt.data= bit_buffer;
1225                 pkt.size= ret;
1226                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1227                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1228 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1229    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1230    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1231
1232                 if(enc->coded_frame->key_frame)
1233                     pkt.flags |= AV_PKT_FLAG_KEY;
1234                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1235                 *frame_size = ret;
1236                 video_size += ret;
1237                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1238                 //        enc->frame_number-1, ret, enc->pict_type);
1239                 /* if two pass, output log */
1240                 if (ost->logfile && enc->stats_out) {
1241                     fprintf(ost->logfile, "%s", enc->stats_out);
1242                 }
1243             }
1244         }
1245         ost->sync_opts++;
1246         ost->frame_number++;
1247     }
1248 }
1249
1250 static double psnr(double d){
1251     return -10.0*log(d)/log(10.0);
1252 }
1253
1254 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1255                            int frame_size)
1256 {
1257     AVCodecContext *enc;
1258     int frame_number;
1259     double ti1, bitrate, avg_bitrate;
1260
1261     /* this is executed just the first time do_video_stats is called */
1262     if (!vstats_file) {
1263         vstats_file = fopen(vstats_filename, "w");
1264         if (!vstats_file) {
1265             perror("fopen");
1266             ffmpeg_exit(1);
1267         }
1268     }
1269
1270     enc = ost->st->codec;
1271     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1272         frame_number = ost->frame_number;
1273         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1274         if (enc->flags&CODEC_FLAG_PSNR)
1275             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1276
1277         fprintf(vstats_file,"f_size= %6d ", frame_size);
1278         /* compute pts value */
1279         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1280         if (ti1 < 0.01)
1281             ti1 = 0.01;
1282
1283         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1284         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1285         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1286             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1287         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1288     }
1289 }
1290
1291 static void print_report(AVFormatContext **output_files,
1292                          AVOutputStream **ost_table, int nb_ostreams,
1293                          int is_last_report)
1294 {
1295     char buf[1024];
1296     AVOutputStream *ost;
1297     AVFormatContext *oc;
1298     int64_t total_size;
1299     AVCodecContext *enc;
1300     int frame_number, vid, i;
1301     double bitrate, ti1, pts;
1302     static int64_t last_time = -1;
1303     static int qp_histogram[52];
1304
1305     if (!is_last_report) {
1306         int64_t cur_time;
1307         /* display the report every 0.5 seconds */
1308         cur_time = av_gettime();
1309         if (last_time == -1) {
1310             last_time = cur_time;
1311             return;
1312         }
1313         if ((cur_time - last_time) < 500000)
1314             return;
1315         last_time = cur_time;
1316     }
1317
1318
1319     oc = output_files[0];
1320
1321     total_size = avio_size(oc->pb);
1322     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1323         total_size= avio_tell(oc->pb);
1324
1325     buf[0] = '\0';
1326     ti1 = 1e10;
1327     vid = 0;
1328     for(i=0;i<nb_ostreams;i++) {
1329         ost = ost_table[i];
1330         enc = ost->st->codec;
1331         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1332             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1333                      !ost->st->stream_copy ?
1334                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1335         }
1336         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1337             float t = (av_gettime()-timer_start) / 1000000.0;
1338
1339             frame_number = ost->frame_number;
1340             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1341                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1342                      !ost->st->stream_copy ?
1343                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1344             if(is_last_report)
1345                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1346             if(qp_hist){
1347                 int j;
1348                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1349                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1350                     qp_histogram[qp]++;
1351                 for(j=0; j<32; j++)
1352                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1353             }
1354             if (enc->flags&CODEC_FLAG_PSNR){
1355                 int j;
1356                 double error, error_sum=0;
1357                 double scale, scale_sum=0;
1358                 char type[3]= {'Y','U','V'};
1359                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1360                 for(j=0; j<3; j++){
1361                     if(is_last_report){
1362                         error= enc->error[j];
1363                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1364                     }else{
1365                         error= enc->coded_frame->error[j];
1366                         scale= enc->width*enc->height*255.0*255.0;
1367                     }
1368                     if(j) scale/=4;
1369                     error_sum += error;
1370                     scale_sum += scale;
1371                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1372                 }
1373                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1374             }
1375             vid = 1;
1376         }
1377         /* compute min output value */
1378         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1379         if ((pts < ti1) && (pts > 0))
1380             ti1 = pts;
1381     }
1382     if (ti1 < 0.01)
1383         ti1 = 0.01;
1384
1385     if (verbose > 0 || is_last_report) {
1386         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1387
1388         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1389             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1390             (double)total_size / 1024, ti1, bitrate);
1391
1392         if (nb_frames_dup || nb_frames_drop)
1393           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1394                   nb_frames_dup, nb_frames_drop);
1395
1396         if (verbose >= 0)
1397             fprintf(stderr, "%s    \r", buf);
1398
1399         fflush(stderr);
1400     }
1401
1402     if (is_last_report && verbose >= 0){
1403         int64_t raw= audio_size + video_size + extra_size;
1404         fprintf(stderr, "\n");
1405         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1406                 video_size/1024.0,
1407                 audio_size/1024.0,
1408                 extra_size/1024.0,
1409                 100.0*(total_size - raw)/raw
1410         );
1411     }
1412 }
1413
1414 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1415 {
1416     int fill_char = 0x00;
1417     if (sample_fmt == AV_SAMPLE_FMT_U8)
1418         fill_char = 0x80;
1419     memset(buf, fill_char, size);
1420 }
1421
1422 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1423 static int output_packet(AVInputStream *ist, int ist_index,
1424                          AVOutputStream **ost_table, int nb_ostreams,
1425                          const AVPacket *pkt)
1426 {
1427     AVFormatContext *os;
1428     AVOutputStream *ost;
1429     int ret, i;
1430     int got_output;
1431     AVFrame picture;
1432     void *buffer_to_free;
1433     static unsigned int samples_size= 0;
1434     AVSubtitle subtitle, *subtitle_to_free;
1435     int64_t pkt_pts = AV_NOPTS_VALUE;
1436 #if CONFIG_AVFILTER
1437     int frame_available;
1438 #endif
1439
1440     AVPacket avpkt;
1441     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1442
1443     if(ist->next_pts == AV_NOPTS_VALUE)
1444         ist->next_pts= ist->pts;
1445
1446     if (pkt == NULL) {
1447         /* EOF handling */
1448         av_init_packet(&avpkt);
1449         avpkt.data = NULL;
1450         avpkt.size = 0;
1451         goto handle_eof;
1452     } else {
1453         avpkt = *pkt;
1454     }
1455
1456     if(pkt->dts != AV_NOPTS_VALUE)
1457         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1458     if(pkt->pts != AV_NOPTS_VALUE)
1459         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1460
1461     //while we have more to decode or while the decoder did output something on EOF
1462     while (avpkt.size > 0 || (!pkt && got_output)) {
1463         uint8_t *data_buf, *decoded_data_buf;
1464         int data_size, decoded_data_size;
1465     handle_eof:
1466         ist->pts= ist->next_pts;
1467
1468         if(avpkt.size && avpkt.size != pkt->size &&
1469            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1470             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1471             ist->showed_multi_packet_warning=1;
1472         }
1473
1474         /* decode the packet if needed */
1475         decoded_data_buf = NULL; /* fail safe */
1476         decoded_data_size= 0;
1477         data_buf  = avpkt.data;
1478         data_size = avpkt.size;
1479         subtitle_to_free = NULL;
1480         if (ist->decoding_needed) {
1481             switch(ist->st->codec->codec_type) {
1482             case AVMEDIA_TYPE_AUDIO:{
1483                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1484                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1485                     av_free(samples);
1486                     samples= av_malloc(samples_size);
1487                 }
1488                 decoded_data_size= samples_size;
1489                     /* XXX: could avoid copy if PCM 16 bits with same
1490                        endianness as CPU */
1491                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1492                                             &avpkt);
1493                 if (ret < 0)
1494                     goto fail_decode;
1495                 avpkt.data += ret;
1496                 avpkt.size -= ret;
1497                 data_size   = ret;
1498                 got_output  = decoded_data_size > 0;
1499                 /* Some bug in mpeg audio decoder gives */
1500                 /* decoded_data_size < 0, it seems they are overflows */
1501                 if (!got_output) {
1502                     /* no audio frame */
1503                     continue;
1504                 }
1505                 decoded_data_buf = (uint8_t *)samples;
1506                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1507                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1508                 break;}
1509             case AVMEDIA_TYPE_VIDEO:
1510                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1511                     /* XXX: allocate picture correctly */
1512                     avcodec_get_frame_defaults(&picture);
1513                     avpkt.pts = pkt_pts;
1514                     avpkt.dts = ist->pts;
1515                     pkt_pts = AV_NOPTS_VALUE;
1516
1517                     ret = avcodec_decode_video2(ist->st->codec,
1518                                                 &picture, &got_output, &avpkt);
1519                     ist->st->quality= picture.quality;
1520                     if (ret < 0)
1521                         goto fail_decode;
1522                     if (!got_output) {
1523                         /* no picture yet */
1524                         goto discard_packet;
1525                     }
1526                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1527                     if (ist->st->codec->time_base.num != 0) {
1528                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1529                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1530                                           ist->st->codec->time_base.num * ticks) /
1531                             ist->st->codec->time_base.den;
1532                     }
1533                     avpkt.size = 0;
1534                     break;
1535             case AVMEDIA_TYPE_SUBTITLE:
1536                 ret = avcodec_decode_subtitle2(ist->st->codec,
1537                                                &subtitle, &got_output, &avpkt);
1538                 if (ret < 0)
1539                     goto fail_decode;
1540                 if (!got_output) {
1541                     goto discard_packet;
1542                 }
1543                 subtitle_to_free = &subtitle;
1544                 avpkt.size = 0;
1545                 break;
1546             default:
1547                 goto fail_decode;
1548             }
1549         } else {
1550             switch(ist->st->codec->codec_type) {
1551             case AVMEDIA_TYPE_AUDIO:
1552                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1553                     ist->st->codec->sample_rate;
1554                 break;
1555             case AVMEDIA_TYPE_VIDEO:
1556                 if (ist->st->codec->time_base.num != 0) {
1557                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1558                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1559                                       ist->st->codec->time_base.num * ticks) /
1560                         ist->st->codec->time_base.den;
1561                 }
1562                 break;
1563             }
1564             ret = avpkt.size;
1565             avpkt.size = 0;
1566         }
1567
1568         buffer_to_free = NULL;
1569         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1570             pre_process_video_frame(ist, (AVPicture *)&picture,
1571                                     &buffer_to_free);
1572         }
1573
1574 #if CONFIG_AVFILTER
1575         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1576             AVRational sar;
1577             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1578             else                                  sar = ist->st->codec->sample_aspect_ratio;
1579             // add it to be filtered
1580             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1581                                      ist->pts,
1582                                      sar);
1583         }
1584 #endif
1585
1586         // preprocess audio (volume)
1587         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1588             if (audio_volume != 256) {
1589                 short *volp;
1590                 volp = samples;
1591                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1592                     int v = ((*volp) * audio_volume + 128) >> 8;
1593                     if (v < -32768) v = -32768;
1594                     if (v >  32767) v = 32767;
1595                     *volp++ = v;
1596                 }
1597             }
1598         }
1599
1600         /* frame rate emulation */
1601         if (rate_emu) {
1602             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1603             int64_t now = av_gettime() - ist->start;
1604             if (pts > now)
1605                 usleep(pts - now);
1606         }
1607 #if CONFIG_AVFILTER
1608         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1609             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1610 #endif
1611         /* if output time reached then transcode raw format,
1612            encode packets and output them */
1613         if (start_time == 0 || ist->pts >= start_time)
1614 #if CONFIG_AVFILTER
1615         while (frame_available) {
1616             AVRational ist_pts_tb;
1617             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1618                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1619             if (ist->picref)
1620                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1621 #endif
1622             for(i=0;i<nb_ostreams;i++) {
1623                 int frame_size;
1624
1625                 ost = ost_table[i];
1626                 if (ost->source_index == ist_index) {
1627                     os = output_files[ost->file_index];
1628
1629                     /* set the input output pts pairs */
1630                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1631
1632                     if (ost->encoding_needed) {
1633                         av_assert0(ist->decoding_needed);
1634                         switch(ost->st->codec->codec_type) {
1635                         case AVMEDIA_TYPE_AUDIO:
1636                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1637                             break;
1638                         case AVMEDIA_TYPE_VIDEO:
1639 #if CONFIG_AVFILTER
1640                             if (ist->picref->video)
1641                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1642 #endif
1643                             do_video_out(os, ost, ist, &picture, &frame_size);
1644                             if (vstats_filename && frame_size)
1645                                 do_video_stats(os, ost, frame_size);
1646                             break;
1647                         case AVMEDIA_TYPE_SUBTITLE:
1648                             do_subtitle_out(os, ost, ist, &subtitle,
1649                                             pkt->pts);
1650                             break;
1651                         default:
1652                             abort();
1653                         }
1654                     } else {
1655                         AVFrame avframe; //FIXME/XXX remove this
1656                         AVPacket opkt;
1657                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1658
1659                         av_init_packet(&opkt);
1660
1661                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1662                             continue;
1663
1664                         /* no reencoding needed : output the packet directly */
1665                         /* force the input stream PTS */
1666
1667                         avcodec_get_frame_defaults(&avframe);
1668                         ost->st->codec->coded_frame= &avframe;
1669                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1670
1671                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1672                             audio_size += data_size;
1673                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1674                             video_size += data_size;
1675                             ost->sync_opts++;
1676                         }
1677
1678                         opkt.stream_index= ost->index;
1679                         if(pkt->pts != AV_NOPTS_VALUE)
1680                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1681                         else
1682                             opkt.pts= AV_NOPTS_VALUE;
1683
1684                         if (pkt->dts == AV_NOPTS_VALUE)
1685                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1686                         else
1687                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1688                         opkt.dts -= ost_tb_start_time;
1689
1690                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1691                         opkt.flags= pkt->flags;
1692
1693                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1694                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1695                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1696                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1697                            ) {
1698                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1699                                 opkt.destruct= av_destruct_packet;
1700                         } else {
1701                             opkt.data = data_buf;
1702                             opkt.size = data_size;
1703                         }
1704
1705                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1706                         ost->st->codec->frame_number++;
1707                         ost->frame_number++;
1708                         av_free_packet(&opkt);
1709                     }
1710                 }
1711             }
1712
1713 #if CONFIG_AVFILTER
1714             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1715                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1716             if(ist->picref)
1717                 avfilter_unref_buffer(ist->picref);
1718         }
1719 #endif
1720         av_free(buffer_to_free);
1721         /* XXX: allocate the subtitles in the codec ? */
1722         if (subtitle_to_free) {
1723             avsubtitle_free(subtitle_to_free);
1724             subtitle_to_free = NULL;
1725         }
1726     }
1727  discard_packet:
1728     if (pkt == NULL) {
1729         /* EOF handling */
1730
1731         for(i=0;i<nb_ostreams;i++) {
1732             ost = ost_table[i];
1733             if (ost->source_index == ist_index) {
1734                 AVCodecContext *enc= ost->st->codec;
1735                 os = output_files[ost->file_index];
1736
1737                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1738                     continue;
1739                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1740                     continue;
1741
1742                 if (ost->encoding_needed) {
1743                     for(;;) {
1744                         AVPacket pkt;
1745                         int fifo_bytes;
1746                         av_init_packet(&pkt);
1747                         pkt.stream_index= ost->index;
1748
1749                         switch(ost->st->codec->codec_type) {
1750                         case AVMEDIA_TYPE_AUDIO:
1751                             fifo_bytes = av_fifo_size(ost->fifo);
1752                             ret = 0;
1753                             /* encode any samples remaining in fifo */
1754                             if (fifo_bytes > 0) {
1755                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1756                                 int fs_tmp = enc->frame_size;
1757
1758                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1759                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1760                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1761                                 } else { /* pad */
1762                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1763                                     if (allocated_audio_buf_size < frame_bytes)
1764                                         ffmpeg_exit(1);
1765                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1766                                 }
1767
1768                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1769                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1770                                                           ost->st->time_base.num, enc->sample_rate);
1771                                 enc->frame_size = fs_tmp;
1772                             }
1773                             if(ret <= 0) {
1774                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1775                             }
1776                             if (ret < 0) {
1777                                 fprintf(stderr, "Audio encoding failed\n");
1778                                 ffmpeg_exit(1);
1779                             }
1780                             audio_size += ret;
1781                             pkt.flags |= AV_PKT_FLAG_KEY;
1782                             break;
1783                         case AVMEDIA_TYPE_VIDEO:
1784                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1785                             if (ret < 0) {
1786                                 fprintf(stderr, "Video encoding failed\n");
1787                                 ffmpeg_exit(1);
1788                             }
1789                             video_size += ret;
1790                             if(enc->coded_frame && enc->coded_frame->key_frame)
1791                                 pkt.flags |= AV_PKT_FLAG_KEY;
1792                             if (ost->logfile && enc->stats_out) {
1793                                 fprintf(ost->logfile, "%s", enc->stats_out);
1794                             }
1795                             break;
1796                         default:
1797                             ret=-1;
1798                         }
1799
1800                         if(ret<=0)
1801                             break;
1802                         pkt.data= bit_buffer;
1803                         pkt.size= ret;
1804                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1805                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1806                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1807                     }
1808                 }
1809             }
1810         }
1811     }
1812
1813     return 0;
1814  fail_decode:
1815     return -1;
1816 }
1817
1818 static void print_sdp(AVFormatContext **avc, int n)
1819 {
1820     char sdp[2048];
1821
1822     av_sdp_create(avc, n, sdp, sizeof(sdp));
1823     printf("SDP:\n%s\n", sdp);
1824     fflush(stdout);
1825 }
1826
1827 static int copy_chapters(int infile, int outfile)
1828 {
1829     AVFormatContext *is = input_files[infile];
1830     AVFormatContext *os = output_files[outfile];
1831     int i;
1832
1833     for (i = 0; i < is->nb_chapters; i++) {
1834         AVChapter *in_ch = is->chapters[i], *out_ch;
1835         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1836                                       AV_TIME_BASE_Q, in_ch->time_base);
1837         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1838                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1839
1840
1841         if (in_ch->end < ts_off)
1842             continue;
1843         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1844             break;
1845
1846         out_ch = av_mallocz(sizeof(AVChapter));
1847         if (!out_ch)
1848             return AVERROR(ENOMEM);
1849
1850         out_ch->id        = in_ch->id;
1851         out_ch->time_base = in_ch->time_base;
1852         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1853         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1854
1855         if (metadata_chapters_autocopy)
1856             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1857
1858         os->nb_chapters++;
1859         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1860         if (!os->chapters)
1861             return AVERROR(ENOMEM);
1862         os->chapters[os->nb_chapters - 1] = out_ch;
1863     }
1864     return 0;
1865 }
1866
1867 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1868                                     AVCodecContext *avctx)
1869 {
1870     char *p;
1871     int n = 1, i;
1872     int64_t t;
1873
1874     for (p = kf; *p; p++)
1875         if (*p == ',')
1876             n++;
1877     ost->forced_kf_count = n;
1878     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1879     if (!ost->forced_kf_pts) {
1880         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1881         ffmpeg_exit(1);
1882     }
1883     for (i = 0; i < n; i++) {
1884         p = i ? strchr(p, ',') + 1 : kf;
1885         t = parse_time_or_die("force_key_frames", p, 1);
1886         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1887     }
1888 }
1889
1890 /*
1891  * The following code is the main loop of the file converter
1892  */
1893 static int transcode(AVFormatContext **output_files,
1894                      int nb_output_files,
1895                      AVFormatContext **input_files,
1896                      int nb_input_files,
1897                      AVStreamMap *stream_maps, int nb_stream_maps)
1898 {
1899     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1900     AVFormatContext *is, *os;
1901     AVCodecContext *codec, *icodec;
1902     AVOutputStream *ost, **ost_table = NULL;
1903     AVInputStream *ist, **ist_table = NULL;
1904     AVInputFile *file_table;
1905     char error[1024];
1906     int key;
1907     int want_sdp = 1;
1908     uint8_t no_packet[MAX_FILES]={0};
1909     int no_packet_count=0;
1910
1911     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1912     if (!file_table)
1913         goto fail;
1914
1915     /* input stream init */
1916     j = 0;
1917     for(i=0;i<nb_input_files;i++) {
1918         is = input_files[i];
1919         file_table[i].ist_index = j;
1920         file_table[i].nb_streams = is->nb_streams;
1921         j += is->nb_streams;
1922     }
1923     nb_istreams = j;
1924
1925     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1926     if (!ist_table)
1927         goto fail;
1928
1929     for(i=0;i<nb_istreams;i++) {
1930         ist = av_mallocz(sizeof(AVInputStream));
1931         if (!ist)
1932             goto fail;
1933         ist_table[i] = ist;
1934     }
1935     j = 0;
1936     for(i=0;i<nb_input_files;i++) {
1937         is = input_files[i];
1938         for(k=0;k<is->nb_streams;k++) {
1939             ist = ist_table[j++];
1940             ist->st = is->streams[k];
1941             ist->file_index = i;
1942             ist->index = k;
1943             ist->discard = 1; /* the stream is discarded by default
1944                                  (changed later) */
1945
1946             if (rate_emu) {
1947                 ist->start = av_gettime();
1948             }
1949         }
1950     }
1951
1952     /* output stream init */
1953     nb_ostreams = 0;
1954     for(i=0;i<nb_output_files;i++) {
1955         os = output_files[i];
1956         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1957             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1958             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1959             ret = AVERROR(EINVAL);
1960             goto fail;
1961         }
1962         nb_ostreams += os->nb_streams;
1963     }
1964     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1965         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1966         ret = AVERROR(EINVAL);
1967         goto fail;
1968     }
1969
1970     /* Sanity check the mapping args -- do the input files & streams exist? */
1971     for(i=0;i<nb_stream_maps;i++) {
1972         int fi = stream_maps[i].file_index;
1973         int si = stream_maps[i].stream_index;
1974
1975         if (fi < 0 || fi > nb_input_files - 1 ||
1976             si < 0 || si > file_table[fi].nb_streams - 1) {
1977             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1978             ret = AVERROR(EINVAL);
1979             goto fail;
1980         }
1981         fi = stream_maps[i].sync_file_index;
1982         si = stream_maps[i].sync_stream_index;
1983         if (fi < 0 || fi > nb_input_files - 1 ||
1984             si < 0 || si > file_table[fi].nb_streams - 1) {
1985             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1986             ret = AVERROR(EINVAL);
1987             goto fail;
1988         }
1989     }
1990
1991     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1992     if (!ost_table)
1993         goto fail;
1994     n = 0;
1995     for(k=0;k<nb_output_files;k++) {
1996         os = output_files[k];
1997         for(i=0;i<os->nb_streams;i++,n++) {
1998             int found;
1999             ost = ost_table[n] = output_streams_for_file[k][i];
2000             ost->st = os->streams[i];
2001             if (nb_stream_maps > 0) {
2002                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2003                     stream_maps[n].stream_index;
2004
2005                 /* Sanity check that the stream types match */
2006                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2007                     int i= ost->file_index;
2008                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2009                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2010                         stream_maps[n].file_index, stream_maps[n].stream_index,
2011                         ost->file_index, ost->index);
2012                     ffmpeg_exit(1);
2013                 }
2014
2015             } else {
2016                 int best_nb_frames=-1;
2017                 /* get corresponding input stream index : we select the first one with the right type */
2018                 found = 0;
2019                 for(j=0;j<nb_istreams;j++) {
2020                     int skip=0;
2021                     ist = ist_table[j];
2022                     if(opt_programid){
2023                         int pi,si;
2024                         AVFormatContext *f= input_files[ ist->file_index ];
2025                         skip=1;
2026                         for(pi=0; pi<f->nb_programs; pi++){
2027                             AVProgram *p= f->programs[pi];
2028                             if(p->id == opt_programid)
2029                                 for(si=0; si<p->nb_stream_indexes; si++){
2030                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2031                                         skip=0;
2032                                 }
2033                         }
2034                     }
2035                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2036                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2037                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2038                             best_nb_frames= ist->st->codec_info_nb_frames;
2039                             ost->source_index = j;
2040                             found = 1;
2041                         }
2042                     }
2043                 }
2044
2045                 if (!found) {
2046                     if(! opt_programid) {
2047                         /* try again and reuse existing stream */
2048                         for(j=0;j<nb_istreams;j++) {
2049                             ist = ist_table[j];
2050                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2051                                 && ist->st->discard != AVDISCARD_ALL) {
2052                                 ost->source_index = j;
2053                                 found = 1;
2054                             }
2055                         }
2056                     }
2057                     if (!found) {
2058                         int i= ost->file_index;
2059                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2060                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2061                                 ost->file_index, ost->index);
2062                         ffmpeg_exit(1);
2063                     }
2064                 }
2065             }
2066             ist = ist_table[ost->source_index];
2067             ist->discard = 0;
2068             ost->sync_ist = (nb_stream_maps > 0) ?
2069                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2070                          stream_maps[n].sync_stream_index] : ist;
2071         }
2072     }
2073
2074     /* for each output stream, we compute the right encoding parameters */
2075     for(i=0;i<nb_ostreams;i++) {
2076         ost = ost_table[i];
2077         os = output_files[ost->file_index];
2078         ist = ist_table[ost->source_index];
2079
2080         codec = ost->st->codec;
2081         icodec = ist->st->codec;
2082
2083         if (metadata_streams_autocopy)
2084             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2085                              AV_METADATA_DONT_OVERWRITE);
2086
2087         ost->st->disposition = ist->st->disposition;
2088         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2089         codec->chroma_sample_location = icodec->chroma_sample_location;
2090
2091         if (ost->st->stream_copy) {
2092             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2093
2094             if (extra_size > INT_MAX)
2095                 goto fail;
2096
2097             /* if stream_copy is selected, no need to decode or encode */
2098             codec->codec_id = icodec->codec_id;
2099             codec->codec_type = icodec->codec_type;
2100
2101             if(!codec->codec_tag){
2102                 if(   !os->oformat->codec_tag
2103                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2104                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2105                     codec->codec_tag = icodec->codec_tag;
2106             }
2107
2108             codec->bit_rate = icodec->bit_rate;
2109             codec->rc_max_rate    = icodec->rc_max_rate;
2110             codec->rc_buffer_size = icodec->rc_buffer_size;
2111             codec->extradata= av_mallocz(extra_size);
2112             if (!codec->extradata)
2113                 goto fail;
2114             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2115             codec->extradata_size= icodec->extradata_size;
2116             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){
2117                 codec->time_base = icodec->time_base;
2118                 codec->time_base.num *= icodec->ticks_per_frame;
2119                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2120                           codec->time_base.num, codec->time_base.den, INT_MAX);
2121             }else
2122                 codec->time_base = ist->st->time_base;
2123             switch(codec->codec_type) {
2124             case AVMEDIA_TYPE_AUDIO:
2125                 if(audio_volume != 256) {
2126                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2127                     ffmpeg_exit(1);
2128                 }
2129                 codec->channel_layout = icodec->channel_layout;
2130                 codec->sample_rate = icodec->sample_rate;
2131                 codec->channels = icodec->channels;
2132                 codec->frame_size = icodec->frame_size;
2133                 codec->audio_service_type = icodec->audio_service_type;
2134                 codec->block_align= icodec->block_align;
2135                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2136                     codec->block_align= 0;
2137                 if(codec->codec_id == CODEC_ID_AC3)
2138                     codec->block_align= 0;
2139                 break;
2140             case AVMEDIA_TYPE_VIDEO:
2141                 codec->pix_fmt = icodec->pix_fmt;
2142                 codec->width = icodec->width;
2143                 codec->height = icodec->height;
2144                 codec->has_b_frames = icodec->has_b_frames;
2145                 break;
2146             case AVMEDIA_TYPE_SUBTITLE:
2147                 codec->width = icodec->width;
2148                 codec->height = icodec->height;
2149                 break;
2150             case AVMEDIA_TYPE_DATA:
2151                 break;
2152             default:
2153                 abort();
2154             }
2155         } else {
2156             switch(codec->codec_type) {
2157             case AVMEDIA_TYPE_AUDIO:
2158                 ost->fifo= av_fifo_alloc(1024);
2159                 if(!ost->fifo)
2160                     goto fail;
2161                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2162                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2163                 icodec->request_channels = codec->channels;
2164                 ist->decoding_needed = 1;
2165                 ost->encoding_needed = 1;
2166                 ost->resample_sample_fmt  = icodec->sample_fmt;
2167                 ost->resample_sample_rate = icodec->sample_rate;
2168                 ost->resample_channels    = icodec->channels;
2169                 break;
2170             case AVMEDIA_TYPE_VIDEO:
2171                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2172                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2173                     ffmpeg_exit(1);
2174                 }
2175                 ost->video_resample = (codec->width != icodec->width   ||
2176                                        codec->height != icodec->height ||
2177                         (codec->pix_fmt != icodec->pix_fmt));
2178                 if (ost->video_resample) {
2179 #if !CONFIG_AVFILTER
2180                     avcodec_get_frame_defaults(&ost->pict_tmp);
2181                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2182                                          codec->width, codec->height)) {
2183                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2184                         ffmpeg_exit(1);
2185                     }
2186                     ost->img_resample_ctx = sws_getContext(
2187                         icodec->width,
2188                         icodec->height,
2189                             icodec->pix_fmt,
2190                             codec->width,
2191                             codec->height,
2192                             codec->pix_fmt,
2193                             ost->sws_flags, NULL, NULL, NULL);
2194                     if (ost->img_resample_ctx == NULL) {
2195                         fprintf(stderr, "Cannot get resampling context\n");
2196                         ffmpeg_exit(1);
2197                     }
2198 #endif
2199                     codec->bits_per_raw_sample= 0;
2200                 }
2201                 ost->resample_height = icodec->height;
2202                 ost->resample_width  = icodec->width;
2203                 ost->resample_pix_fmt= icodec->pix_fmt;
2204                 ost->encoding_needed = 1;
2205                 ist->decoding_needed = 1;
2206
2207 #if CONFIG_AVFILTER
2208                 if (configure_video_filters(ist, ost)) {
2209                     fprintf(stderr, "Error opening filters!\n");
2210                     exit(1);
2211                 }
2212 #endif
2213                 break;
2214             case AVMEDIA_TYPE_SUBTITLE:
2215                 ost->encoding_needed = 1;
2216                 ist->decoding_needed = 1;
2217                 break;
2218             default:
2219                 abort();
2220                 break;
2221             }
2222             /* two pass mode */
2223             if (ost->encoding_needed &&
2224                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2225                 char logfilename[1024];
2226                 FILE *f;
2227
2228                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2229                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2230                          i);
2231                 if (codec->flags & CODEC_FLAG_PASS1) {
2232                     f = fopen(logfilename, "wb");
2233                     if (!f) {
2234                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2235                         ffmpeg_exit(1);
2236                     }
2237                     ost->logfile = f;
2238                 } else {
2239                     char  *logbuffer;
2240                     size_t logbuffer_size;
2241                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2242                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2243                         ffmpeg_exit(1);
2244                     }
2245                     codec->stats_in = logbuffer;
2246                 }
2247             }
2248         }
2249         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2250             int size= codec->width * codec->height;
2251             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2252         }
2253     }
2254
2255     if (!bit_buffer)
2256         bit_buffer = av_malloc(bit_buffer_size);
2257     if (!bit_buffer) {
2258         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2259                 bit_buffer_size);
2260         ret = AVERROR(ENOMEM);
2261         goto fail;
2262     }
2263
2264     /* open each encoder */
2265     for(i=0;i<nb_ostreams;i++) {
2266         ost = ost_table[i];
2267         if (ost->encoding_needed) {
2268             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2269             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2270             if (!codec)
2271                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2272             if (!codec) {
2273                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2274                          ost->st->codec->codec_id, ost->file_index, ost->index);
2275                 ret = AVERROR(EINVAL);
2276                 goto dump_format;
2277             }
2278             if (dec->subtitle_header) {
2279                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2280                 if (!ost->st->codec->subtitle_header) {
2281                     ret = AVERROR(ENOMEM);
2282                     goto dump_format;
2283                 }
2284                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2285                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2286             }
2287             if (avcodec_open(ost->st->codec, codec) < 0) {
2288                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2289                         ost->file_index, ost->index);
2290                 ret = AVERROR(EINVAL);
2291                 goto dump_format;
2292             }
2293             extra_size += ost->st->codec->extradata_size;
2294         }
2295     }
2296
2297     /* open each decoder */
2298     for(i=0;i<nb_istreams;i++) {
2299         ist = ist_table[i];
2300         if (ist->decoding_needed) {
2301             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2302             if (!codec)
2303                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2304             if (!codec) {
2305                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2306                         ist->st->codec->codec_id, ist->file_index, ist->index);
2307                 ret = AVERROR(EINVAL);
2308                 goto dump_format;
2309             }
2310             if (avcodec_open(ist->st->codec, codec) < 0) {
2311                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2312                         ist->file_index, ist->index);
2313                 ret = AVERROR(EINVAL);
2314                 goto dump_format;
2315             }
2316             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2317             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2318         }
2319     }
2320
2321     /* init pts */
2322     for(i=0;i<nb_istreams;i++) {
2323         AVStream *st;
2324         ist = ist_table[i];
2325         st= ist->st;
2326         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2327         ist->next_pts = AV_NOPTS_VALUE;
2328         init_pts_correction(&ist->pts_ctx);
2329         ist->is_start = 1;
2330     }
2331
2332     /* set meta data information from input file if required */
2333     for (i=0;i<nb_meta_data_maps;i++) {
2334         AVFormatContext *files[2];
2335         AVMetadata      **meta[2];
2336         int j;
2337
2338 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2339         if ((index) < 0 || (index) >= (nb_elems)) {\
2340             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2341                      (desc), (index));\
2342             ret = AVERROR(EINVAL);\
2343             goto dump_format;\
2344         }
2345
2346         int out_file_index = meta_data_maps[i][0].file;
2347         int in_file_index = meta_data_maps[i][1].file;
2348         if (in_file_index < 0 || out_file_index < 0)
2349             continue;
2350         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2351         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2352
2353         files[0] = output_files[out_file_index];
2354         files[1] = input_files[in_file_index];
2355
2356         for (j = 0; j < 2; j++) {
2357             AVMetaDataMap *map = &meta_data_maps[i][j];
2358
2359             switch (map->type) {
2360             case 'g':
2361                 meta[j] = &files[j]->metadata;
2362                 break;
2363             case 's':
2364                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2365                 meta[j] = &files[j]->streams[map->index]->metadata;
2366                 break;
2367             case 'c':
2368                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2369                 meta[j] = &files[j]->chapters[map->index]->metadata;
2370                 break;
2371             case 'p':
2372                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2373                 meta[j] = &files[j]->programs[map->index]->metadata;
2374                 break;
2375             }
2376         }
2377
2378         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2379     }
2380
2381     /* copy global metadata by default */
2382     if (metadata_global_autocopy) {
2383
2384         for (i = 0; i < nb_output_files; i++)
2385             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2386                              AV_METADATA_DONT_OVERWRITE);
2387     }
2388
2389     /* copy chapters according to chapter maps */
2390     for (i = 0; i < nb_chapter_maps; i++) {
2391         int infile  = chapter_maps[i].in_file;
2392         int outfile = chapter_maps[i].out_file;
2393
2394         if (infile < 0 || outfile < 0)
2395             continue;
2396         if (infile >= nb_input_files) {
2397             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2398             ret = AVERROR(EINVAL);
2399             goto dump_format;
2400         }
2401         if (outfile >= nb_output_files) {
2402             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2403             ret = AVERROR(EINVAL);
2404             goto dump_format;
2405         }
2406         copy_chapters(infile, outfile);
2407     }
2408
2409     /* copy chapters from the first input file that has them*/
2410     if (!nb_chapter_maps)
2411         for (i = 0; i < nb_input_files; i++) {
2412             if (!input_files[i]->nb_chapters)
2413                 continue;
2414
2415             for (j = 0; j < nb_output_files; j++)
2416                 if ((ret = copy_chapters(i, j)) < 0)
2417                     goto dump_format;
2418             break;
2419         }
2420
2421     /* open files and write file headers */
2422     for(i=0;i<nb_output_files;i++) {
2423         os = output_files[i];
2424         if (av_write_header(os) < 0) {
2425             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2426             ret = AVERROR(EINVAL);
2427             goto dump_format;
2428         }
2429         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2430             want_sdp = 0;
2431         }
2432     }
2433
2434  dump_format:
2435     /* dump the file output parameters - cannot be done before in case
2436        of stream copy */
2437     for(i=0;i<nb_output_files;i++) {
2438         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2439     }
2440
2441     /* dump the stream mapping */
2442     if (verbose >= 0) {
2443         fprintf(stderr, "Stream mapping:\n");
2444         for(i=0;i<nb_ostreams;i++) {
2445             ost = ost_table[i];
2446             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2447                     ist_table[ost->source_index]->file_index,
2448                     ist_table[ost->source_index]->index,
2449                     ost->file_index,
2450                     ost->index);
2451             if (ost->sync_ist != ist_table[ost->source_index])
2452                 fprintf(stderr, " [sync #%d.%d]",
2453                         ost->sync_ist->file_index,
2454                         ost->sync_ist->index);
2455             fprintf(stderr, "\n");
2456         }
2457     }
2458
2459     if (ret) {
2460         fprintf(stderr, "%s\n", error);
2461         goto fail;
2462     }
2463
2464     if (want_sdp) {
2465         print_sdp(output_files, nb_output_files);
2466     }
2467
2468     if (!using_stdin && verbose >= 0) {
2469 #if HAVE_KBHIT
2470         fprintf(stderr, "Press [q] to stop encoding\n");
2471 #else
2472         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2473 #endif
2474         avio_set_interrupt_cb(decode_interrupt_cb);
2475     }
2476     term_init();
2477
2478     timer_start = av_gettime();
2479
2480     for(; received_sigterm == 0;) {
2481         int file_index, ist_index;
2482         AVPacket pkt;
2483         double ipts_min;
2484         double opts_min;
2485
2486     redo:
2487         ipts_min= 1e100;
2488         opts_min= 1e100;
2489         /* if 'q' pressed, exits */
2490         if (!using_stdin) {
2491             if (q_pressed)
2492                 break;
2493             /* read_key() returns 0 on EOF */
2494             key = read_key();
2495             if (key == 'q')
2496                 break;
2497         }
2498
2499         /* select the stream that we must read now by looking at the
2500            smallest output pts */
2501         file_index = -1;
2502         for(i=0;i<nb_ostreams;i++) {
2503             double ipts, opts;
2504             ost = ost_table[i];
2505             os = output_files[ost->file_index];
2506             ist = ist_table[ost->source_index];
2507             if(ist->is_past_recording_time || no_packet[ist->file_index])
2508                 continue;
2509                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2510             ipts = (double)ist->pts;
2511             if (!file_table[ist->file_index].eof_reached){
2512                 if(ipts < ipts_min) {
2513                     ipts_min = ipts;
2514                     if(input_sync ) file_index = ist->file_index;
2515                 }
2516                 if(opts < opts_min) {
2517                     opts_min = opts;
2518                     if(!input_sync) file_index = ist->file_index;
2519                 }
2520             }
2521             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2522                 file_index= -1;
2523                 break;
2524             }
2525         }
2526         /* if none, if is finished */
2527         if (file_index < 0) {
2528             if(no_packet_count){
2529                 no_packet_count=0;
2530                 memset(no_packet, 0, sizeof(no_packet));
2531                 usleep(10000);
2532                 continue;
2533             }
2534             break;
2535         }
2536
2537         /* finish if limit size exhausted */
2538         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2539             break;
2540
2541         /* read a frame from it and output it in the fifo */
2542         is = input_files[file_index];
2543         ret= av_read_frame(is, &pkt);
2544         if(ret == AVERROR(EAGAIN)){
2545             no_packet[file_index]=1;
2546             no_packet_count++;
2547             continue;
2548         }
2549         if (ret < 0) {
2550             file_table[file_index].eof_reached = 1;
2551             if (opt_shortest)
2552                 break;
2553             else
2554                 continue;
2555         }
2556
2557         no_packet_count=0;
2558         memset(no_packet, 0, sizeof(no_packet));
2559
2560         if (do_pkt_dump) {
2561             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2562                              is->streams[pkt.stream_index]);
2563         }
2564         /* the following test is needed in case new streams appear
2565            dynamically in stream : we ignore them */
2566         if (pkt.stream_index >= file_table[file_index].nb_streams)
2567             goto discard_packet;
2568         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2569         ist = ist_table[ist_index];
2570         if (ist->discard)
2571             goto discard_packet;
2572
2573         if (pkt.dts != AV_NOPTS_VALUE)
2574             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2575         if (pkt.pts != AV_NOPTS_VALUE)
2576             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2577
2578         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2579             && input_files_ts_scale[file_index][pkt.stream_index]){
2580             if(pkt.pts != AV_NOPTS_VALUE)
2581                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2582             if(pkt.dts != AV_NOPTS_VALUE)
2583                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2584         }
2585
2586 //        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);
2587         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2588             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2589             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2590             int64_t delta= pkt_dts - ist->next_pts;
2591             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2592                 input_files_ts_offset[ist->file_index]-= delta;
2593                 if (verbose > 2)
2594                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2595                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2596                 if(pkt.pts != AV_NOPTS_VALUE)
2597                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2598             }
2599         }
2600
2601         /* finish if recording time exhausted */
2602         if (recording_time != INT64_MAX &&
2603             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2604             ist->is_past_recording_time = 1;
2605             goto discard_packet;
2606         }
2607
2608         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2609         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2610
2611             if (verbose >= 0)
2612                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2613                         ist->file_index, ist->index);
2614             if (exit_on_error)
2615                 ffmpeg_exit(1);
2616             av_free_packet(&pkt);
2617             goto redo;
2618         }
2619
2620     discard_packet:
2621         av_free_packet(&pkt);
2622
2623         /* dump report by using the output first video and audio streams */
2624         print_report(output_files, ost_table, nb_ostreams, 0);
2625     }
2626
2627     /* at the end of stream, we must flush the decoder buffers */
2628     for(i=0;i<nb_istreams;i++) {
2629         ist = ist_table[i];
2630         if (ist->decoding_needed) {
2631             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2632         }
2633     }
2634
2635     term_exit();
2636
2637     /* write the trailer if needed and close file */
2638     for(i=0;i<nb_output_files;i++) {
2639         os = output_files[i];
2640         av_write_trailer(os);
2641     }
2642
2643     /* dump report by using the first video and audio streams */
2644     print_report(output_files, ost_table, nb_ostreams, 1);
2645
2646     /* close each encoder */
2647     for(i=0;i<nb_ostreams;i++) {
2648         ost = ost_table[i];
2649         if (ost->encoding_needed) {
2650             av_freep(&ost->st->codec->stats_in);
2651             avcodec_close(ost->st->codec);
2652         }
2653     }
2654
2655     /* close each decoder */
2656     for(i=0;i<nb_istreams;i++) {
2657         ist = ist_table[i];
2658         if (ist->decoding_needed) {
2659             avcodec_close(ist->st->codec);
2660         }
2661     }
2662 #if CONFIG_AVFILTER
2663     avfilter_graph_free(&graph);
2664 #endif
2665
2666     /* finished ! */
2667     ret = 0;
2668
2669  fail:
2670     av_freep(&bit_buffer);
2671     av_free(file_table);
2672
2673     if (ist_table) {
2674         for(i=0;i<nb_istreams;i++) {
2675             ist = ist_table[i];
2676             av_free(ist);
2677         }
2678         av_free(ist_table);
2679     }
2680     if (ost_table) {
2681         for(i=0;i<nb_ostreams;i++) {
2682             ost = ost_table[i];
2683             if (ost) {
2684                 if (ost->st->stream_copy)
2685                     av_freep(&ost->st->codec->extradata);
2686                 if (ost->logfile) {
2687                     fclose(ost->logfile);
2688                     ost->logfile = NULL;
2689                 }
2690                 av_fifo_free(ost->fifo); /* works even if fifo is not
2691                                              initialized but set to zero */
2692                 av_freep(&ost->st->codec->subtitle_header);
2693                 av_free(ost->pict_tmp.data[0]);
2694                 av_free(ost->forced_kf_pts);
2695                 if (ost->video_resample)
2696                     sws_freeContext(ost->img_resample_ctx);
2697                 if (ost->resample)
2698                     audio_resample_close(ost->resample);
2699                 if (ost->reformat_ctx)
2700                     av_audio_convert_free(ost->reformat_ctx);
2701                 av_free(ost);
2702             }
2703         }
2704         av_free(ost_table);
2705     }
2706     return ret;
2707 }
2708
2709 static void opt_format(const char *arg)
2710 {
2711     last_asked_format = arg;
2712 }
2713
2714 static void opt_video_rc_override_string(const char *arg)
2715 {
2716     video_rc_override_string = arg;
2717 }
2718
2719 static int opt_me_threshold(const char *opt, const char *arg)
2720 {
2721     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2722     return 0;
2723 }
2724
2725 static int opt_verbose(const char *opt, const char *arg)
2726 {
2727     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2728     return 0;
2729 }
2730
2731 static int opt_frame_rate(const char *opt, const char *arg)
2732 {
2733     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2734         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2735         ffmpeg_exit(1);
2736     }
2737     return 0;
2738 }
2739
2740 static int opt_bitrate(const char *opt, const char *arg)
2741 {
2742     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2743
2744     opt_default(opt, arg);
2745
2746     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2747         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2748
2749     return 0;
2750 }
2751
2752 static int opt_frame_crop(const char *opt, const char *arg)
2753 {
2754     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2755     return AVERROR(EINVAL);
2756 }
2757
2758 static void opt_frame_size(const char *arg)
2759 {
2760     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2761         fprintf(stderr, "Incorrect frame size\n");
2762         ffmpeg_exit(1);
2763     }
2764 }
2765
2766 static int opt_pad(const char *opt, const char *arg) {
2767     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2768     return -1;
2769 }
2770
2771 static void opt_frame_pix_fmt(const char *arg)
2772 {
2773     if (strcmp(arg, "list")) {
2774         frame_pix_fmt = av_get_pix_fmt(arg);
2775         if (frame_pix_fmt == PIX_FMT_NONE) {
2776             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2777             ffmpeg_exit(1);
2778         }
2779     } else {
2780         show_pix_fmts();
2781         ffmpeg_exit(0);
2782     }
2783 }
2784
2785 static void opt_frame_aspect_ratio(const char *arg)
2786 {
2787     int x = 0, y = 0;
2788     double ar = 0;
2789     const char *p;
2790     char *end;
2791
2792     p = strchr(arg, ':');
2793     if (p) {
2794         x = strtol(arg, &end, 10);
2795         if (end == p)
2796             y = strtol(end+1, &end, 10);
2797         if (x > 0 && y > 0)
2798             ar = (double)x / (double)y;
2799     } else
2800         ar = strtod(arg, NULL);
2801
2802     if (!ar) {
2803         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2804         ffmpeg_exit(1);
2805     }
2806     frame_aspect_ratio = ar;
2807
2808 #if CONFIG_AVFILTER
2809     x = vfilters ? strlen(vfilters) : 0;
2810     vfilters = av_realloc(vfilters, x+100);
2811     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2812 #endif
2813 }
2814
2815 static int opt_metadata(const char *opt, const char *arg)
2816 {
2817     char *mid= strchr(arg, '=');
2818
2819     if(!mid){
2820         fprintf(stderr, "Missing =\n");
2821         ffmpeg_exit(1);
2822     }
2823     *mid++= 0;
2824
2825     av_metadata_set2(&metadata, arg, mid, 0);
2826
2827     return 0;
2828 }
2829
2830 static void opt_qscale(const char *arg)
2831 {
2832     video_qscale = atof(arg);
2833     if (video_qscale <= 0 ||
2834         video_qscale > 255) {
2835         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2836         ffmpeg_exit(1);
2837     }
2838 }
2839
2840 static void opt_top_field_first(const char *arg)
2841 {
2842     top_field_first= atoi(arg);
2843 }
2844
2845 static int opt_thread_count(const char *opt, const char *arg)
2846 {
2847     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2848 #if !HAVE_THREADS
2849     if (verbose >= 0)
2850         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2851 #endif
2852     return 0;
2853 }
2854
2855 static void opt_audio_sample_fmt(const char *arg)
2856 {
2857     if (strcmp(arg, "list")) {
2858         audio_sample_fmt = av_get_sample_fmt(arg);
2859         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2860             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2861             ffmpeg_exit(1);
2862         }
2863     } else {
2864         int i;
2865         char fmt_str[128];
2866         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2867             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2868         ffmpeg_exit(0);
2869     }
2870 }
2871
2872 static int opt_audio_rate(const char *opt, const char *arg)
2873 {
2874     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2875     return 0;
2876 }
2877
2878 static int opt_audio_channels(const char *opt, const char *arg)
2879 {
2880     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2881     return 0;
2882 }
2883
2884 static void opt_video_channel(const char *arg)
2885 {
2886     video_channel = strtol(arg, NULL, 0);
2887 }
2888
2889 static void opt_video_standard(const char *arg)
2890 {
2891     video_standard = av_strdup(arg);
2892 }
2893
2894 static void opt_codec(int *pstream_copy, char **pcodec_name,
2895                       int codec_type, const char *arg)
2896 {
2897     av_freep(pcodec_name);
2898     if (!strcmp(arg, "copy")) {
2899         *pstream_copy = 1;
2900     } else {
2901         *pcodec_name = av_strdup(arg);
2902     }
2903 }
2904
2905 static void opt_audio_codec(const char *arg)
2906 {
2907     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2908 }
2909
2910 static void opt_video_codec(const char *arg)
2911 {
2912     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2913 }
2914
2915 static void opt_subtitle_codec(const char *arg)
2916 {
2917     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2918 }
2919
2920 static void opt_data_codec(const char *arg)
2921 {
2922     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2923 }
2924
2925 static int opt_codec_tag(const char *opt, const char *arg)
2926 {
2927     char *tail;
2928     uint32_t *codec_tag;
2929
2930     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2931                 !strcmp(opt, "vtag") ? &video_codec_tag :
2932                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2933     if (!codec_tag)
2934         return -1;
2935
2936     *codec_tag = strtol(arg, &tail, 0);
2937     if (!tail || *tail)
2938         *codec_tag = AV_RL32(arg);
2939
2940     return 0;
2941 }
2942
2943 static void opt_map(const char *arg)
2944 {
2945     AVStreamMap *m;
2946     char *p;
2947
2948     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2949     m = &stream_maps[nb_stream_maps-1];
2950
2951     m->file_index = strtol(arg, &p, 0);
2952     if (*p)
2953         p++;
2954
2955     m->stream_index = strtol(p, &p, 0);
2956     if (*p) {
2957         p++;
2958         m->sync_file_index = strtol(p, &p, 0);
2959         if (*p)
2960             p++;
2961         m->sync_stream_index = strtol(p, &p, 0);
2962     } else {
2963         m->sync_file_index = m->file_index;
2964         m->sync_stream_index = m->stream_index;
2965     }
2966 }
2967
2968 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2969 {
2970     *endptr = arg;
2971     if (*arg == ',') {
2972         *type = *(++arg);
2973         switch (*arg) {
2974         case 'g':
2975             break;
2976         case 's':
2977         case 'c':
2978         case 'p':
2979             *index = strtol(++arg, endptr, 0);
2980             break;
2981         default:
2982             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2983             ffmpeg_exit(1);
2984         }
2985     } else
2986         *type = 'g';
2987 }
2988
2989 static void opt_map_metadata(const char *arg)
2990 {
2991     AVMetaDataMap *m, *m1;
2992     char *p;
2993
2994     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2995                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2996
2997     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2998     m->file = strtol(arg, &p, 0);
2999     parse_meta_type(p, &m->type, &m->index, &p);
3000     if (*p)
3001         p++;
3002
3003     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3004     m1->file = strtol(p, &p, 0);
3005     parse_meta_type(p, &m1->type, &m1->index, &p);
3006
3007     if (m->type == 'g' || m1->type == 'g')
3008         metadata_global_autocopy = 0;
3009     if (m->type == 's' || m1->type == 's')
3010         metadata_streams_autocopy = 0;
3011     if (m->type == 'c' || m1->type == 'c')
3012         metadata_chapters_autocopy = 0;
3013 }
3014
3015 static void opt_map_meta_data(const char *arg)
3016 {
3017     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3018                     "Use -map_metadata instead.\n");
3019     opt_map_metadata(arg);
3020 }
3021
3022 static void opt_map_chapters(const char *arg)
3023 {
3024     AVChapterMap *c;
3025     char *p;
3026
3027     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3028                               nb_chapter_maps + 1);
3029     c = &chapter_maps[nb_chapter_maps - 1];
3030     c->out_file = strtol(arg, &p, 0);
3031     if (*p)
3032         p++;
3033
3034     c->in_file = strtol(p, &p, 0);
3035 }
3036
3037 static void opt_input_ts_scale(const char *arg)
3038 {
3039     unsigned int stream;
3040     double scale;
3041     char *p;
3042
3043     stream = strtol(arg, &p, 0);
3044     if (*p)
3045         p++;
3046     scale= strtod(p, &p);
3047
3048     if(stream >= MAX_STREAMS)
3049         ffmpeg_exit(1);
3050
3051     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);
3052     input_files_ts_scale[nb_input_files][stream]= scale;
3053 }
3054
3055 static int opt_recording_time(const char *opt, const char *arg)
3056 {
3057     recording_time = parse_time_or_die(opt, arg, 1);
3058     return 0;
3059 }
3060
3061 static int opt_start_time(const char *opt, const char *arg)
3062 {
3063     start_time = parse_time_or_die(opt, arg, 1);
3064     return 0;
3065 }
3066
3067 static int opt_recording_timestamp(const char *opt, const char *arg)
3068 {
3069     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3070     return 0;
3071 }
3072
3073 static int opt_input_ts_offset(const char *opt, const char *arg)
3074 {
3075     input_ts_offset = parse_time_or_die(opt, arg, 1);
3076     return 0;
3077 }
3078
3079 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3080 {
3081     const char *codec_string = encoder ? "encoder" : "decoder";
3082     AVCodec *codec;
3083
3084     if(!name)
3085         return CODEC_ID_NONE;
3086     codec = encoder ?
3087         avcodec_find_encoder_by_name(name) :
3088         avcodec_find_decoder_by_name(name);
3089     if(!codec) {
3090         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3091         ffmpeg_exit(1);
3092     }
3093     if(codec->type != type) {
3094         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3095         ffmpeg_exit(1);
3096     }
3097     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3098        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3099         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3100                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3101                 codec_string, codec->name);
3102         codec = encoder ?
3103             avcodec_find_encoder(codec->id) :
3104             avcodec_find_decoder(codec->id);
3105         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3106             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3107                     codec_string, codec->name);
3108         ffmpeg_exit(1);
3109     }
3110     return codec->id;
3111 }
3112
3113 static void opt_input_file(const char *filename)
3114 {
3115     AVFormatContext *ic;
3116     AVFormatParameters params, *ap = &params;
3117     AVInputFormat *file_iformat = NULL;
3118     int err, i, ret, rfps, rfps_base;
3119     int64_t timestamp;
3120
3121     if (last_asked_format) {
3122         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3123             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3124             ffmpeg_exit(1);
3125         }
3126         last_asked_format = NULL;
3127     }
3128
3129     if (!strcmp(filename, "-"))
3130         filename = "pipe:";
3131
3132     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3133                     !strcmp(filename, "/dev/stdin");
3134
3135     /* get default parameters from command line */
3136     ic = avformat_alloc_context();
3137     if (!ic) {
3138         print_error(filename, AVERROR(ENOMEM));
3139         ffmpeg_exit(1);
3140     }
3141
3142     memset(ap, 0, sizeof(*ap));
3143     ap->prealloced_context = 1;
3144     ap->sample_rate = audio_sample_rate;
3145     ap->channels = audio_channels;
3146     ap->time_base.den = frame_rate.num;
3147     ap->time_base.num = frame_rate.den;
3148     ap->width = frame_width;
3149     ap->height = frame_height;
3150     ap->pix_fmt = frame_pix_fmt;
3151    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3152     ap->channel = video_channel;
3153     ap->standard = video_standard;
3154
3155     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3156
3157     ic->video_codec_id   =
3158         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3159                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3160     ic->audio_codec_id   =
3161         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3162                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3163     ic->subtitle_codec_id=
3164         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3165                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3166     ic->flags |= AVFMT_FLAG_NONBLOCK;
3167
3168     /* open the input file with generic libav function */
3169     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3170     if (err < 0) {
3171         print_error(filename, err);
3172         ffmpeg_exit(1);
3173     }
3174     if(opt_programid) {
3175         int i, j;
3176         int found=0;
3177         for(i=0; i<ic->nb_streams; i++){
3178             ic->streams[i]->discard= AVDISCARD_ALL;
3179         }
3180         for(i=0; i<ic->nb_programs; i++){
3181             AVProgram *p= ic->programs[i];
3182             if(p->id != opt_programid){
3183                 p->discard = AVDISCARD_ALL;
3184             }else{
3185                 found=1;
3186                 for(j=0; j<p->nb_stream_indexes; j++){
3187                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3188                 }
3189             }
3190         }
3191         if(!found){
3192             fprintf(stderr, "Specified program id not found\n");
3193             ffmpeg_exit(1);
3194         }
3195         opt_programid=0;
3196     }
3197
3198     ic->loop_input = loop_input;
3199
3200     /* If not enough info to get the stream parameters, we decode the
3201        first frames to get it. (used in mpeg case for example) */
3202     ret = av_find_stream_info(ic);
3203     if (ret < 0 && verbose >= 0) {
3204         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3205         av_close_input_file(ic);
3206         ffmpeg_exit(1);
3207     }
3208
3209     timestamp = start_time;
3210     /* add the stream start time */
3211     if (ic->start_time != AV_NOPTS_VALUE)
3212         timestamp += ic->start_time;
3213
3214     /* if seeking requested, we execute it */
3215     if (start_time != 0) {
3216         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3217         if (ret < 0) {
3218             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3219                     filename, (double)timestamp / AV_TIME_BASE);
3220         }
3221         /* reset seek info */
3222         start_time = 0;
3223     }
3224
3225     /* update the current parameters so that they match the one of the input stream */
3226     for(i=0;i<ic->nb_streams;i++) {
3227         AVStream *st = ic->streams[i];
3228         AVCodecContext *dec = st->codec;
3229         dec->thread_count = thread_count;
3230         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3231         switch (dec->codec_type) {
3232         case AVMEDIA_TYPE_AUDIO:
3233             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3234             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]);
3235             channel_layout    = dec->channel_layout;
3236             audio_channels    = dec->channels;
3237             audio_sample_rate = dec->sample_rate;
3238             audio_sample_fmt  = dec->sample_fmt;
3239             if(audio_disable)
3240                 st->discard= AVDISCARD_ALL;
3241             /* Note that av_find_stream_info can add more streams, and we
3242              * currently have no chance of setting up lowres decoding
3243              * early enough for them. */
3244             if (dec->lowres)
3245                 audio_sample_rate >>= dec->lowres;
3246             break;
3247         case AVMEDIA_TYPE_VIDEO:
3248             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3249             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]);
3250             frame_height = dec->height;
3251             frame_width  = dec->width;
3252             if(ic->streams[i]->sample_aspect_ratio.num)
3253                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3254             else
3255                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3256             frame_aspect_ratio *= (float) dec->width / dec->height;
3257             frame_pix_fmt = dec->pix_fmt;
3258             rfps      = ic->streams[i]->r_frame_rate.num;
3259             rfps_base = ic->streams[i]->r_frame_rate.den;
3260             if (dec->lowres) {
3261                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3262                 frame_height >>= dec->lowres;
3263                 frame_width  >>= dec->lowres;
3264                 dec->height = frame_height;
3265                 dec->width  = frame_width;
3266             }
3267             if(me_threshold)
3268                 dec->debug |= FF_DEBUG_MV;
3269
3270             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3271
3272                 if (verbose >= 0)
3273                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3274                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3275
3276                     (float)rfps / rfps_base, rfps, rfps_base);
3277             }
3278             /* update the current frame rate to match the stream frame rate */
3279             frame_rate.num = rfps;
3280             frame_rate.den = rfps_base;
3281
3282             if(video_disable)
3283                 st->discard= AVDISCARD_ALL;
3284             else if(video_discard)
3285                 st->discard= video_discard;
3286             break;
3287         case AVMEDIA_TYPE_DATA:
3288             break;
3289         case AVMEDIA_TYPE_SUBTITLE:
3290             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3291             if(subtitle_disable)
3292                 st->discard = AVDISCARD_ALL;
3293             break;
3294         case AVMEDIA_TYPE_ATTACHMENT:
3295         case AVMEDIA_TYPE_UNKNOWN:
3296             break;
3297         default:
3298             abort();
3299         }
3300     }
3301
3302     input_files[nb_input_files] = ic;
3303     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3304     /* dump the file content */
3305     if (verbose >= 0)
3306         av_dump_format(ic, nb_input_files, filename, 0);
3307
3308     nb_input_files++;
3309
3310     video_channel = 0;
3311
3312     av_freep(&video_codec_name);
3313     av_freep(&audio_codec_name);
3314     av_freep(&subtitle_codec_name);
3315     uninit_opts();
3316     init_opts();
3317 }
3318
3319 static void check_inputs(int *has_video_ptr,
3320                          int *has_audio_ptr,
3321                          int *has_subtitle_ptr,
3322                          int *has_data_ptr)
3323 {
3324     int has_video, has_audio, has_subtitle, has_data, i, j;
3325     AVFormatContext *ic;
3326
3327     has_video = 0;
3328     has_audio = 0;
3329     has_subtitle = 0;
3330     has_data = 0;
3331
3332     for(j=0;j<nb_input_files;j++) {
3333         ic = input_files[j];
3334         for(i=0;i<ic->nb_streams;i++) {
3335             AVCodecContext *enc = ic->streams[i]->codec;
3336             switch(enc->codec_type) {
3337             case AVMEDIA_TYPE_AUDIO:
3338                 has_audio = 1;
3339                 break;
3340             case AVMEDIA_TYPE_VIDEO:
3341                 has_video = 1;
3342                 break;
3343             case AVMEDIA_TYPE_SUBTITLE:
3344                 has_subtitle = 1;
3345                 break;
3346             case AVMEDIA_TYPE_DATA:
3347             case AVMEDIA_TYPE_ATTACHMENT:
3348             case AVMEDIA_TYPE_UNKNOWN:
3349                 has_data = 1;
3350                 break;
3351             default:
3352                 abort();
3353             }
3354         }
3355     }
3356     *has_video_ptr = has_video;
3357     *has_audio_ptr = has_audio;
3358     *has_subtitle_ptr = has_subtitle;
3359     *has_data_ptr = has_data;
3360 }
3361
3362 static void new_video_stream(AVFormatContext *oc, int file_idx)
3363 {
3364     AVStream *st;
3365     AVOutputStream *ost;
3366     AVCodecContext *video_enc;
3367     enum CodecID codec_id = CODEC_ID_NONE;
3368     AVCodec *codec= NULL;
3369
3370     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3371     if (!st) {
3372         fprintf(stderr, "Could not alloc stream\n");
3373         ffmpeg_exit(1);
3374     }
3375     ost = new_output_stream(oc, file_idx);
3376
3377     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3378     if(!video_stream_copy){
3379         if (video_codec_name) {
3380             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3381                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3382             codec = avcodec_find_encoder_by_name(video_codec_name);
3383             output_codecs[nb_output_codecs-1] = codec;
3384         } else {
3385             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3386             codec = avcodec_find_encoder(codec_id);
3387         }
3388     }
3389
3390     avcodec_get_context_defaults3(st->codec, codec);
3391     ost->bitstream_filters = video_bitstream_filters;
3392     video_bitstream_filters= NULL;
3393
3394     st->codec->thread_count= thread_count;
3395
3396     video_enc = st->codec;
3397
3398     if(video_codec_tag)
3399         video_enc->codec_tag= video_codec_tag;
3400
3401     if(   (video_global_header&1)
3402        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3403         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3404         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3405     }
3406     if(video_global_header&2){
3407         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3408         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3409     }
3410
3411     if (video_stream_copy) {
3412         st->stream_copy = 1;
3413         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3414         video_enc->sample_aspect_ratio =
3415         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3416     } else {
3417         const char *p;
3418         int i;
3419         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3420
3421         video_enc->codec_id = codec_id;
3422         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3423
3424         if (codec && codec->supported_framerates && !force_fps)
3425             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3426         video_enc->time_base.den = fps.num;
3427         video_enc->time_base.num = fps.den;
3428
3429         video_enc->width = frame_width;
3430         video_enc->height = frame_height;
3431         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3432         video_enc->pix_fmt = frame_pix_fmt;
3433         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3434
3435         choose_pixel_fmt(st, codec);
3436
3437         if (intra_only)
3438             video_enc->gop_size = 0;
3439         if (video_qscale || same_quality) {
3440             video_enc->flags |= CODEC_FLAG_QSCALE;
3441             video_enc->global_quality=
3442                 st->quality = FF_QP2LAMBDA * video_qscale;
3443         }
3444
3445         if(intra_matrix)
3446             video_enc->intra_matrix = intra_matrix;
3447         if(inter_matrix)
3448             video_enc->inter_matrix = inter_matrix;
3449
3450         p= video_rc_override_string;
3451         for(i=0; p; i++){
3452             int start, end, q;
3453             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3454             if(e!=3){
3455                 fprintf(stderr, "error parsing rc_override\n");
3456                 ffmpeg_exit(1);
3457             }
3458             video_enc->rc_override=
3459                 av_realloc(video_enc->rc_override,
3460                            sizeof(RcOverride)*(i+1));
3461             video_enc->rc_override[i].start_frame= start;
3462             video_enc->rc_override[i].end_frame  = end;
3463             if(q>0){
3464                 video_enc->rc_override[i].qscale= q;
3465                 video_enc->rc_override[i].quality_factor= 1.0;
3466             }
3467             else{
3468                 video_enc->rc_override[i].qscale= 0;
3469                 video_enc->rc_override[i].quality_factor= -q/100.0;
3470             }
3471             p= strchr(p, '/');
3472             if(p) p++;
3473         }
3474         video_enc->rc_override_count=i;
3475         if (!video_enc->rc_initial_buffer_occupancy)
3476             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3477         video_enc->me_threshold= me_threshold;
3478         video_enc->intra_dc_precision= intra_dc_precision - 8;
3479
3480         if (do_psnr)
3481             video_enc->flags|= CODEC_FLAG_PSNR;
3482
3483         /* two pass mode */
3484         if (do_pass) {
3485             if (do_pass == 1) {
3486                 video_enc->flags |= CODEC_FLAG_PASS1;
3487             } else {
3488                 video_enc->flags |= CODEC_FLAG_PASS2;
3489             }
3490         }
3491
3492         if (forced_key_frames)
3493             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3494     }
3495     if (video_language) {
3496         av_metadata_set2(&st->metadata, "language", video_language, 0);
3497         av_freep(&video_language);
3498     }
3499
3500     /* reset some key parameters */
3501     video_disable = 0;
3502     av_freep(&video_codec_name);
3503     av_freep(&forced_key_frames);
3504     video_stream_copy = 0;
3505     frame_pix_fmt = PIX_FMT_NONE;
3506 }
3507
3508 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3509 {
3510     AVStream *st;
3511     AVOutputStream *ost;
3512     AVCodec *codec= NULL;
3513     AVCodecContext *audio_enc;
3514     enum CodecID codec_id = CODEC_ID_NONE;
3515
3516     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3517     if (!st) {
3518         fprintf(stderr, "Could not alloc stream\n");
3519         ffmpeg_exit(1);
3520     }
3521     ost = new_output_stream(oc, file_idx);
3522
3523     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3524     if(!audio_stream_copy){
3525         if (audio_codec_name) {
3526             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3527                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3528             codec = avcodec_find_encoder_by_name(audio_codec_name);
3529             output_codecs[nb_output_codecs-1] = codec;
3530         } else {
3531             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3532             codec = avcodec_find_encoder(codec_id);
3533         }
3534     }
3535
3536     avcodec_get_context_defaults3(st->codec, codec);
3537
3538     ost->bitstream_filters = audio_bitstream_filters;
3539     audio_bitstream_filters= NULL;
3540
3541     st->codec->thread_count= thread_count;
3542
3543     audio_enc = st->codec;
3544     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3545
3546     if(audio_codec_tag)
3547         audio_enc->codec_tag= audio_codec_tag;
3548
3549     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3550         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3551         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3552     }
3553     if (audio_stream_copy) {
3554         st->stream_copy = 1;
3555         audio_enc->channels = audio_channels;
3556         audio_enc->sample_rate = audio_sample_rate;
3557     } else {
3558         audio_enc->codec_id = codec_id;
3559         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3560
3561         if (audio_qscale > QSCALE_NONE) {
3562             audio_enc->flags |= CODEC_FLAG_QSCALE;
3563             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3564         }
3565         audio_enc->channels = audio_channels;
3566         audio_enc->sample_fmt = audio_sample_fmt;
3567         audio_enc->sample_rate = audio_sample_rate;
3568         audio_enc->channel_layout = channel_layout;
3569         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3570             audio_enc->channel_layout = 0;
3571         choose_sample_fmt(st, codec);
3572         choose_sample_rate(st, codec);
3573     }
3574     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3575     if (audio_language) {
3576         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3577         av_freep(&audio_language);
3578     }
3579
3580     /* reset some key parameters */
3581     audio_disable = 0;
3582     av_freep(&audio_codec_name);
3583     audio_stream_copy = 0;
3584 }
3585
3586 static void new_data_stream(AVFormatContext *oc, int file_idx)
3587 {
3588     AVStream *st;
3589     AVOutputStream *ost;
3590     AVCodec *codec=NULL;
3591     AVCodecContext *data_enc;
3592
3593     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3594     if (!st) {
3595         fprintf(stderr, "Could not alloc stream\n");
3596         ffmpeg_exit(1);
3597     }
3598     ost = new_output_stream(oc, file_idx);
3599     data_enc = st->codec;
3600     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3601     if (!data_stream_copy) {
3602         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3603         ffmpeg_exit(1);
3604     }
3605     avcodec_get_context_defaults3(st->codec, codec);
3606
3607     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3608
3609     if (data_codec_tag)
3610         data_enc->codec_tag= data_codec_tag;
3611
3612     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3613         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3614         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3615     }
3616     if (data_stream_copy) {
3617         st->stream_copy = 1;
3618     }
3619
3620     data_disable = 0;
3621     av_freep(&data_codec_name);
3622     data_stream_copy = 0;
3623 }
3624
3625 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3626 {
3627     AVStream *st;
3628     AVOutputStream *ost;
3629     AVCodec *codec=NULL;
3630     AVCodecContext *subtitle_enc;
3631     enum CodecID codec_id = CODEC_ID_NONE;
3632
3633     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3634     if (!st) {
3635         fprintf(stderr, "Could not alloc stream\n");
3636         ffmpeg_exit(1);
3637     }
3638     ost = new_output_stream(oc, file_idx);
3639     subtitle_enc = st->codec;
3640     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3641     if(!subtitle_stream_copy){
3642         if (subtitle_codec_name) {
3643             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3644                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3645             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3646         } else {
3647             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3648             codec = avcodec_find_encoder(codec_id);
3649         }
3650     }
3651     avcodec_get_context_defaults3(st->codec, codec);
3652
3653     ost->bitstream_filters = subtitle_bitstream_filters;
3654     subtitle_bitstream_filters= NULL;
3655
3656     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3657
3658     if(subtitle_codec_tag)
3659         subtitle_enc->codec_tag= subtitle_codec_tag;
3660
3661     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3662         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3663         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3664     }
3665     if (subtitle_stream_copy) {