ffmpeg: drop AV prefixes from struct names.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int file_index;
83     int stream_index;
84     int sync_file_index;
85     int sync_stream_index;
86 } StreamMap;
87
88 /**
89  * select an input file for an output file
90  */
91 typedef struct MetadataMap {
92     int  file;      //< file index
93     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94     int  index;     //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98     int in_file;
99     int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
106
107 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
108
109 static const char *last_asked_format = NULL;
110 static int64_t input_files_ts_offset[MAX_FILES];
111 static double *input_files_ts_scale[MAX_FILES] = {NULL};
112 static AVCodec **input_codecs = NULL;
113 static int nb_input_codecs = 0;
114 static int nb_input_files_ts_scale[MAX_FILES] = {0};
115
116 static AVFormatContext *output_files[MAX_FILES];
117 static AVDictionary *output_opts[MAX_FILES];
118 static int nb_output_files = 0;
119
120 static StreamMap *stream_maps = NULL;
121 static int nb_stream_maps;
122
123 /* first item specifies output metadata, second is input */
124 static MetadataMap (*meta_data_maps)[2] = NULL;
125 static int nb_meta_data_maps;
126 static int metadata_global_autocopy   = 1;
127 static int metadata_streams_autocopy  = 1;
128 static int metadata_chapters_autocopy = 1;
129
130 static ChapterMap *chapter_maps = NULL;
131 static int nb_chapter_maps;
132
133 /* indexed by output file stream index */
134 static int *streamid_map = NULL;
135 static int nb_streamid_map = 0;
136
137 static int frame_width  = 0;
138 static int frame_height = 0;
139 static float frame_aspect_ratio = 0;
140 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
141 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
142 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
143 static AVRational frame_rate;
144 static float video_qscale = 0;
145 static uint16_t *intra_matrix = NULL;
146 static uint16_t *inter_matrix = NULL;
147 static const char *video_rc_override_string=NULL;
148 static int video_disable = 0;
149 static int video_discard = 0;
150 static char *video_codec_name = NULL;
151 static unsigned int video_codec_tag = 0;
152 static char *video_language = NULL;
153 static int same_quality = 0;
154 static int do_deinterlace = 0;
155 static int top_field_first = -1;
156 static int me_threshold = 0;
157 static int intra_dc_precision = 8;
158 static int loop_input = 0;
159 static int loop_output = AVFMT_NOOUTPUTLOOP;
160 static int qp_hist = 0;
161 #if CONFIG_AVFILTER
162 static char *vfilters = NULL;
163 #endif
164
165 static int intra_only = 0;
166 static int audio_sample_rate = 0;
167 static int64_t channel_layout = 0;
168 #define QSCALE_NONE -99999
169 static float audio_qscale = QSCALE_NONE;
170 static int audio_disable = 0;
171 static int audio_channels = 0;
172 static char  *audio_codec_name = NULL;
173 static unsigned int audio_codec_tag = 0;
174 static char *audio_language = NULL;
175
176 static int subtitle_disable = 0;
177 static char *subtitle_codec_name = NULL;
178 static char *subtitle_language = NULL;
179 static unsigned int subtitle_codec_tag = 0;
180
181 static int data_disable = 0;
182 static char *data_codec_name = NULL;
183 static unsigned int data_codec_tag = 0;
184
185 static float mux_preload= 0.5;
186 static float mux_max_delay= 0.7;
187
188 static int64_t recording_time = INT64_MAX;
189 static int64_t start_time = 0;
190 static int64_t recording_timestamp = 0;
191 static int64_t input_ts_offset = 0;
192 static int file_overwrite = 0;
193 static AVDictionary *metadata;
194 static int do_benchmark = 0;
195 static int do_hex_dump = 0;
196 static int do_pkt_dump = 0;
197 static int do_psnr = 0;
198 static int do_pass = 0;
199 static char *pass_logfilename_prefix = NULL;
200 static int audio_stream_copy = 0;
201 static int video_stream_copy = 0;
202 static int subtitle_stream_copy = 0;
203 static int data_stream_copy = 0;
204 static int video_sync_method= -1;
205 static int audio_sync_method= 0;
206 static float audio_drift_threshold= 0.1;
207 static int copy_ts= 0;
208 static int copy_tb;
209 static int opt_shortest = 0;
210 static char *vstats_filename;
211 static FILE *vstats_file;
212 static int opt_programid = 0;
213 static int copy_initial_nonkeyframes = 0;
214
215 static int rate_emu = 0;
216
217 static int audio_volume = 256;
218
219 static int exit_on_error = 0;
220 static int using_stdin = 0;
221 static int verbose = 1;
222 static int thread_count= 1;
223 static int64_t video_size = 0;
224 static int64_t audio_size = 0;
225 static int64_t extra_size = 0;
226 static int nb_frames_dup = 0;
227 static int nb_frames_drop = 0;
228 static int input_sync;
229 static uint64_t limit_filesize = 0;
230 static int force_fps = 0;
231 static char *forced_key_frames = NULL;
232
233 static float dts_delta_threshold = 10;
234
235 static int64_t timer_start;
236
237 static uint8_t *audio_buf;
238 static uint8_t *audio_out;
239 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
240
241 static short *samples;
242
243 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
245 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
246
247 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
248
249 struct InputStream;
250
251 typedef struct OutputStream {
252     int file_index;          /* file index */
253     int index;               /* stream index in the output file */
254     int source_index;        /* InputStream index */
255     AVStream *st;            /* stream in the output file */
256     int encoding_needed;     /* true if encoding needed for this stream */
257     int frame_number;
258     /* input pts and corresponding output pts
259        for A/V sync */
260     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
261     struct InputStream *sync_ist; /* input stream to sync against */
262     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
263     AVBitStreamFilterContext *bitstream_filters;
264     AVCodec *enc;
265
266     /* video only */
267     int video_resample;
268     AVFrame pict_tmp;      /* temporary image for resampling */
269     struct SwsContext *img_resample_ctx; /* for image resampling */
270     int resample_height;
271     int resample_width;
272     int resample_pix_fmt;
273     AVRational frame_rate;
274
275     float frame_aspect_ratio;
276
277     /* forced key frames */
278     int64_t *forced_kf_pts;
279     int forced_kf_count;
280     int forced_kf_index;
281
282     /* audio only */
283     int audio_resample;
284     ReSampleContext *resample; /* for audio resampling */
285     int resample_sample_fmt;
286     int resample_channels;
287     int resample_sample_rate;
288     int reformat_pair;
289     AVAudioConvert *reformat_ctx;
290     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
291     FILE *logfile;
292
293 #if CONFIG_AVFILTER
294     AVFilterContext *output_video_filter;
295     AVFilterContext *input_video_filter;
296     AVFilterBufferRef *picref;
297     char *avfilter;
298     AVFilterGraph *graph;
299 #endif
300
301    int sws_flags;
302 } OutputStream;
303
304 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
305 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
306
307 typedef struct InputStream {
308     int file_index;
309     AVStream *st;
310     int discard;             /* true if stream data should be discarded */
311     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
312     int64_t sample_index;      /* current sample */
313
314     int64_t       start;     /* time when read started */
315     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
316                                 is not defined */
317     int64_t       pts;       /* current pts */
318     PtsCorrectionContext pts_ctx;
319     int is_start;            /* is 1 at the start and after a discontinuity */
320     int showed_multi_packet_warning;
321     int is_past_recording_time;
322 #if CONFIG_AVFILTER
323     AVFrame *filter_frame;
324     int has_filter_frame;
325 #endif
326 } InputStream;
327
328 typedef struct InputFile {
329     AVFormatContext *ctx;
330     int eof_reached;      /* true if eof reached */
331     int ist_index;        /* index of first stream in ist_table */
332     int buffer_size;      /* current total buffer size */
333 } InputFile;
334
335 static InputStream *input_streams = NULL;
336 static int         nb_input_streams = 0;
337 static InputFile   *input_files   = NULL;
338 static int         nb_input_files   = 0;
339
340 #if CONFIG_AVFILTER
341
342 static int configure_video_filters(InputStream *ist, OutputStream *ost)
343 {
344     AVFilterContext *last_filter, *filter;
345     /** filter graph containing all filters including input & output */
346     AVCodecContext *codec = ost->st->codec;
347     AVCodecContext *icodec = ist->st->codec;
348     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
349     AVRational sample_aspect_ratio;
350     char args[255];
351     int ret;
352
353     ost->graph = avfilter_graph_alloc();
354
355     if (ist->st->sample_aspect_ratio.num){
356         sample_aspect_ratio = ist->st->sample_aspect_ratio;
357     }else
358         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
359
360     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
361              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
362              sample_aspect_ratio.num, sample_aspect_ratio.den);
363
364     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
365                                        "src", args, NULL, ost->graph);
366     if (ret < 0)
367         return ret;
368     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
369                                        "out", NULL, &ffsink_ctx, ost->graph);
370     if (ret < 0)
371         return ret;
372     last_filter = ost->input_video_filter;
373
374     if (codec->width  != icodec->width || codec->height != icodec->height) {
375         snprintf(args, 255, "%d:%d:flags=0x%X",
376                  codec->width,
377                  codec->height,
378                  ost->sws_flags);
379         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380                                                 NULL, args, NULL, ost->graph)) < 0)
381             return ret;
382         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
383             return ret;
384         last_filter = filter;
385     }
386
387     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
388     ost->graph->scale_sws_opts = av_strdup(args);
389
390     if (ost->avfilter) {
391         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
392         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
393
394         outputs->name    = av_strdup("in");
395         outputs->filter_ctx = last_filter;
396         outputs->pad_idx = 0;
397         outputs->next    = NULL;
398
399         inputs->name    = av_strdup("out");
400         inputs->filter_ctx = ost->output_video_filter;
401         inputs->pad_idx = 0;
402         inputs->next    = NULL;
403
404         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
405             return ret;
406         av_freep(&ost->avfilter);
407     } else {
408         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
409             return ret;
410     }
411
412     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
413         return ret;
414
415     codec->width  = ost->output_video_filter->inputs[0]->w;
416     codec->height = ost->output_video_filter->inputs[0]->h;
417     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
418         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
419         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
420         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
421
422     return 0;
423 }
424 #endif /* CONFIG_AVFILTER */
425
426 static void term_exit(void)
427 {
428     av_log(NULL, AV_LOG_QUIET, "");
429 }
430
431 static volatile int received_sigterm = 0;
432 static volatile int received_nb_signals = 0;
433
434 static void
435 sigterm_handler(int sig)
436 {
437     received_sigterm = sig;
438     received_nb_signals++;
439     term_exit();
440 }
441
442 static void term_init(void)
443 {
444     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
445     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
446 #ifdef SIGXCPU
447     signal(SIGXCPU, sigterm_handler);
448 #endif
449 }
450
451 static int decode_interrupt_cb(void)
452 {
453     return received_nb_signals > 1;
454 }
455
456 static int ffmpeg_exit(int ret)
457 {
458     int i;
459
460     /* close files */
461     for(i=0;i<nb_output_files;i++) {
462         AVFormatContext *s = output_files[i];
463         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
464             avio_close(s->pb);
465         avformat_free_context(s);
466         av_free(output_streams_for_file[i]);
467         av_dict_free(&output_opts[i]);
468     }
469     for(i=0;i<nb_input_files;i++) {
470         av_close_input_file(input_files[i].ctx);
471         av_free(input_files_ts_scale[i]);
472     }
473
474     av_free(intra_matrix);
475     av_free(inter_matrix);
476
477     if (vstats_file)
478         fclose(vstats_file);
479     av_free(vstats_filename);
480
481     av_free(streamid_map);
482     av_free(input_codecs);
483     av_free(stream_maps);
484     av_free(meta_data_maps);
485
486     av_freep(&input_streams);
487     av_freep(&input_files);
488
489     av_free(video_codec_name);
490     av_free(audio_codec_name);
491     av_free(subtitle_codec_name);
492     av_free(data_codec_name);
493
494     uninit_opts();
495     av_free(audio_buf);
496     av_free(audio_out);
497     allocated_audio_buf_size= allocated_audio_out_size= 0;
498     av_free(samples);
499
500 #if CONFIG_AVFILTER
501     avfilter_uninit();
502 #endif
503
504     if (received_sigterm) {
505         fprintf(stderr,
506             "Received signal %d: terminating.\n",
507             (int) received_sigterm);
508         exit (255);
509     }
510
511     exit(ret); /* not all OS-es handle main() return value */
512     return ret;
513 }
514
515 static void assert_avoptions(AVDictionary *m)
516 {
517     AVDictionaryEntry *t;
518     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
519         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
520         ffmpeg_exit(1);
521     }
522 }
523
524 /* similar to ff_dynarray_add() and av_fast_realloc() */
525 static void *grow_array(void *array, int elem_size, int *size, int new_size)
526 {
527     if (new_size >= INT_MAX / elem_size) {
528         fprintf(stderr, "Array too big.\n");
529         ffmpeg_exit(1);
530     }
531     if (*size < new_size) {
532         uint8_t *tmp = av_realloc(array, new_size*elem_size);
533         if (!tmp) {
534             fprintf(stderr, "Could not alloc buffer.\n");
535             ffmpeg_exit(1);
536         }
537         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
538         *size = new_size;
539         return tmp;
540     }
541     return array;
542 }
543
544 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
545 {
546     if(codec && codec->sample_fmts){
547         const enum AVSampleFormat *p= codec->sample_fmts;
548         for(; *p!=-1; p++){
549             if(*p == st->codec->sample_fmt)
550                 break;
551         }
552         if (*p == -1) {
553             av_log(NULL, AV_LOG_WARNING,
554                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
555                    av_get_sample_fmt_name(st->codec->sample_fmt),
556                    codec->name,
557                    av_get_sample_fmt_name(codec->sample_fmts[0]));
558             st->codec->sample_fmt = codec->sample_fmts[0];
559         }
560     }
561 }
562
563 /**
564  * Update the requested input sample format based on the output sample format.
565  * This is currently only used to request float output from decoders which
566  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
567  * Ideally this will be removed in the future when decoders do not do format
568  * conversion and only output in their native format.
569  */
570 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
571                               AVCodecContext *enc)
572 {
573     /* if sample formats match or a decoder sample format has already been
574        requested, just return */
575     if (enc->sample_fmt == dec->sample_fmt ||
576         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
577         return;
578
579     /* if decoder supports more than one output format */
580     if (dec_codec && dec_codec->sample_fmts &&
581         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
582         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
583         const enum AVSampleFormat *p;
584         int min_dec = -1, min_inc = -1;
585
586         /* find a matching sample format in the encoder */
587         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
588             if (*p == enc->sample_fmt) {
589                 dec->request_sample_fmt = *p;
590                 return;
591             } else if (*p > enc->sample_fmt) {
592                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
593             } else
594                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
595         }
596
597         /* if none match, provide the one that matches quality closest */
598         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
599                                   enc->sample_fmt - min_dec;
600     }
601 }
602
603 static void choose_sample_rate(AVStream *st, AVCodec *codec)
604 {
605     if(codec && codec->supported_samplerates){
606         const int *p= codec->supported_samplerates;
607         int best=0;
608         int best_dist=INT_MAX;
609         for(; *p; p++){
610             int dist= abs(st->codec->sample_rate - *p);
611             if(dist < best_dist){
612                 best_dist= dist;
613                 best= *p;
614             }
615         }
616         if(best_dist){
617             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
618         }
619         st->codec->sample_rate= best;
620     }
621 }
622
623 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
624 {
625     if(codec && codec->pix_fmts){
626         const enum PixelFormat *p= codec->pix_fmts;
627         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
628             if(st->codec->codec_id==CODEC_ID_MJPEG){
629                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
630             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
631                 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};
632             }
633         }
634         for(; *p!=-1; p++){
635             if(*p == st->codec->pix_fmt)
636                 break;
637         }
638         if (*p == -1) {
639             if(st->codec->pix_fmt != PIX_FMT_NONE)
640                 av_log(NULL, AV_LOG_WARNING,
641                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
642                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
643                         codec->name,
644                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
645             st->codec->pix_fmt = codec->pix_fmts[0];
646         }
647     }
648 }
649
650 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
651 {
652     int idx = oc->nb_streams - 1;
653     OutputStream *ost;
654
655     output_streams_for_file[file_idx] =
656         grow_array(output_streams_for_file[file_idx],
657                    sizeof(*output_streams_for_file[file_idx]),
658                    &nb_output_streams_for_file[file_idx],
659                    oc->nb_streams);
660     ost = output_streams_for_file[file_idx][idx] =
661         av_mallocz(sizeof(OutputStream));
662     if (!ost) {
663         fprintf(stderr, "Could not alloc output stream\n");
664         ffmpeg_exit(1);
665     }
666     ost->file_index = file_idx;
667     ost->index = idx;
668
669     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
670     return ost;
671 }
672
673 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
674 {
675     int i, err;
676     AVFormatContext *ic = NULL;
677     int nopts = 0;
678
679     err = avformat_open_input(&ic, filename, NULL, NULL);
680     if (err < 0)
681         return err;
682     /* copy stream format */
683     s->nb_streams = 0;
684     s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
685     for(i=0;i<ic->nb_streams;i++) {
686         AVStream *st;
687         AVCodec *codec;
688
689         s->nb_streams++;
690
691         // FIXME: a more elegant solution is needed
692         st = av_mallocz(sizeof(AVStream));
693         memcpy(st, ic->streams[i], sizeof(AVStream));
694         st->info = NULL;
695         st->codec = avcodec_alloc_context();
696         if (!st->codec) {
697             print_error(filename, AVERROR(ENOMEM));
698             ffmpeg_exit(1);
699         }
700         avcodec_copy_context(st->codec, ic->streams[i]->codec);
701         s->streams[i] = st;
702
703         codec = avcodec_find_encoder(st->codec->codec_id);
704         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
705             if (audio_stream_copy) {
706                 st->stream_copy = 1;
707             } else
708                 choose_sample_fmt(st, codec);
709         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
710             if (video_stream_copy) {
711                 st->stream_copy = 1;
712             } else
713                 choose_pixel_fmt(st, codec);
714         }
715
716         if(st->codec->flags & CODEC_FLAG_BITEXACT)
717             nopts = 1;
718
719         new_output_stream(s, nb_output_files);
720     }
721
722     if (!nopts)
723         s->timestamp = av_gettime();
724
725     av_close_input_file(ic);
726     return 0;
727 }
728
729 static double
730 get_sync_ipts(const OutputStream *ost)
731 {
732     const InputStream *ist = ost->sync_ist;
733     return (double)(ist->pts - start_time)/AV_TIME_BASE;
734 }
735
736 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
737     int ret;
738
739     while(bsfc){
740         AVPacket new_pkt= *pkt;
741         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
742                                           &new_pkt.data, &new_pkt.size,
743                                           pkt->data, pkt->size,
744                                           pkt->flags & AV_PKT_FLAG_KEY);
745         if(a>0){
746             av_free_packet(pkt);
747             new_pkt.destruct= av_destruct_packet;
748         } else if(a<0){
749             fprintf(stderr, "%s failed for stream %d, codec %s",
750                     bsfc->filter->name, pkt->stream_index,
751                     avctx->codec ? avctx->codec->name : "copy");
752             print_error("", a);
753             if (exit_on_error)
754                 ffmpeg_exit(1);
755         }
756         *pkt= new_pkt;
757
758         bsfc= bsfc->next;
759     }
760
761     ret= av_interleaved_write_frame(s, pkt);
762     if(ret < 0){
763         print_error("av_interleaved_write_frame()", ret);
764         ffmpeg_exit(1);
765     }
766 }
767
768 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
769
770 static void do_audio_out(AVFormatContext *s,
771                          OutputStream *ost,
772                          InputStream *ist,
773                          unsigned char *buf, int size)
774 {
775     uint8_t *buftmp;
776     int64_t audio_out_size, audio_buf_size;
777     int64_t allocated_for_size= size;
778
779     int size_out, frame_bytes, ret, resample_changed;
780     AVCodecContext *enc= ost->st->codec;
781     AVCodecContext *dec= ist->st->codec;
782     int osize = av_get_bytes_per_sample(enc->sample_fmt);
783     int isize = av_get_bytes_per_sample(dec->sample_fmt);
784     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
785
786 need_realloc:
787     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
788     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
789     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
790     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
791     audio_buf_size*= osize*enc->channels;
792
793     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
794     if(coded_bps > 8*osize)
795         audio_out_size= audio_out_size * coded_bps / (8*osize);
796     audio_out_size += FF_MIN_BUFFER_SIZE;
797
798     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
799         fprintf(stderr, "Buffer sizes too large\n");
800         ffmpeg_exit(1);
801     }
802
803     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
804     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
805     if (!audio_buf || !audio_out){
806         fprintf(stderr, "Out of memory in do_audio_out\n");
807         ffmpeg_exit(1);
808     }
809
810     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
811         ost->audio_resample = 1;
812
813     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
814                        ost->resample_channels    != dec->channels   ||
815                        ost->resample_sample_rate != dec->sample_rate;
816
817     if ((ost->audio_resample && !ost->resample) || resample_changed) {
818         if (resample_changed) {
819             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",
820                    ist->file_index, ist->st->index,
821                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
822                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
823             ost->resample_sample_fmt  = dec->sample_fmt;
824             ost->resample_channels    = dec->channels;
825             ost->resample_sample_rate = dec->sample_rate;
826             if (ost->resample)
827                 audio_resample_close(ost->resample);
828         }
829         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
830         if (audio_sync_method <= 1 &&
831             ost->resample_sample_fmt  == enc->sample_fmt &&
832             ost->resample_channels    == enc->channels   &&
833             ost->resample_sample_rate == enc->sample_rate) {
834             ost->resample = NULL;
835             ost->audio_resample = 0;
836         } else if (ost->audio_resample) {
837             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
838                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
839             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
840                                                    enc->sample_rate, dec->sample_rate,
841                                                    enc->sample_fmt,  dec->sample_fmt,
842                                                    16, 10, 0, 0.8);
843             if (!ost->resample) {
844                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
845                         dec->channels, dec->sample_rate,
846                         enc->channels, enc->sample_rate);
847                 ffmpeg_exit(1);
848             }
849         }
850     }
851
852 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
853     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
854         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
855         if (ost->reformat_ctx)
856             av_audio_convert_free(ost->reformat_ctx);
857         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
858                                                    dec->sample_fmt, 1, NULL, 0);
859         if (!ost->reformat_ctx) {
860             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
861                 av_get_sample_fmt_name(dec->sample_fmt),
862                 av_get_sample_fmt_name(enc->sample_fmt));
863             ffmpeg_exit(1);
864         }
865         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
866     }
867
868     if(audio_sync_method){
869         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
870                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
871         double idelta= delta*dec->sample_rate / enc->sample_rate;
872         int byte_delta= ((int)idelta)*2*dec->channels;
873
874         //FIXME resample delay
875         if(fabs(delta) > 50){
876             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
877                 if(byte_delta < 0){
878                     byte_delta= FFMAX(byte_delta, -size);
879                     size += byte_delta;
880                     buf  -= byte_delta;
881                     if(verbose > 2)
882                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
883                     if(!size)
884                         return;
885                     ist->is_start=0;
886                 }else{
887                     static uint8_t *input_tmp= NULL;
888                     input_tmp= av_realloc(input_tmp, byte_delta + size);
889
890                     if(byte_delta > allocated_for_size - size){
891                         allocated_for_size= byte_delta + (int64_t)size;
892                         goto need_realloc;
893                     }
894                     ist->is_start=0;
895
896                     memset(input_tmp, 0, byte_delta);
897                     memcpy(input_tmp + byte_delta, buf, size);
898                     buf= input_tmp;
899                     size += byte_delta;
900                     if(verbose > 2)
901                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
902                 }
903             }else if(audio_sync_method>1){
904                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
905                 av_assert0(ost->audio_resample);
906                 if(verbose > 2)
907                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
908 //                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));
909                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
910             }
911         }
912     }else
913         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
914                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
915
916     if (ost->audio_resample) {
917         buftmp = audio_buf;
918         size_out = audio_resample(ost->resample,
919                                   (short *)buftmp, (short *)buf,
920                                   size / (dec->channels * isize));
921         size_out = size_out * enc->channels * osize;
922     } else {
923         buftmp = buf;
924         size_out = size;
925     }
926
927     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
928         const void *ibuf[6]= {buftmp};
929         void *obuf[6]= {audio_buf};
930         int istride[6]= {isize};
931         int ostride[6]= {osize};
932         int len= size_out/istride[0];
933         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
934             printf("av_audio_convert() failed\n");
935             if (exit_on_error)
936                 ffmpeg_exit(1);
937             return;
938         }
939         buftmp = audio_buf;
940         size_out = len*osize;
941     }
942
943     /* now encode as many frames as possible */
944     if (enc->frame_size > 1) {
945         /* output resampled raw samples */
946         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
947             fprintf(stderr, "av_fifo_realloc2() failed\n");
948             ffmpeg_exit(1);
949         }
950         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
951
952         frame_bytes = enc->frame_size * osize * enc->channels;
953
954         while (av_fifo_size(ost->fifo) >= frame_bytes) {
955             AVPacket pkt;
956             av_init_packet(&pkt);
957
958             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
959
960             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
961
962             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
963                                        (short *)audio_buf);
964             if (ret < 0) {
965                 fprintf(stderr, "Audio encoding failed\n");
966                 ffmpeg_exit(1);
967             }
968             audio_size += ret;
969             pkt.stream_index= ost->index;
970             pkt.data= audio_out;
971             pkt.size= ret;
972             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
973                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
974             pkt.flags |= AV_PKT_FLAG_KEY;
975             write_frame(s, &pkt, enc, ost->bitstream_filters);
976
977             ost->sync_opts += enc->frame_size;
978         }
979     } else {
980         AVPacket pkt;
981         av_init_packet(&pkt);
982
983         ost->sync_opts += size_out / (osize * enc->channels);
984
985         /* output a pcm frame */
986         /* determine the size of the coded buffer */
987         size_out /= osize;
988         if (coded_bps)
989             size_out = size_out*coded_bps/8;
990
991         if(size_out > audio_out_size){
992             fprintf(stderr, "Internal error, buffer size too small\n");
993             ffmpeg_exit(1);
994         }
995
996         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
997         ret = avcodec_encode_audio(enc, audio_out, size_out,
998                                    (short *)buftmp);
999         if (ret < 0) {
1000             fprintf(stderr, "Audio encoding failed\n");
1001             ffmpeg_exit(1);
1002         }
1003         audio_size += ret;
1004         pkt.stream_index= ost->index;
1005         pkt.data= audio_out;
1006         pkt.size= ret;
1007         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1008             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1009         pkt.flags |= AV_PKT_FLAG_KEY;
1010         write_frame(s, &pkt, enc, ost->bitstream_filters);
1011     }
1012 }
1013
1014 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1015 {
1016     AVCodecContext *dec;
1017     AVPicture *picture2;
1018     AVPicture picture_tmp;
1019     uint8_t *buf = 0;
1020
1021     dec = ist->st->codec;
1022
1023     /* deinterlace : must be done before any resize */
1024     if (do_deinterlace) {
1025         int size;
1026
1027         /* create temporary picture */
1028         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1029         buf = av_malloc(size);
1030         if (!buf)
1031             return;
1032
1033         picture2 = &picture_tmp;
1034         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1035
1036         if(avpicture_deinterlace(picture2, picture,
1037                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1038             /* if error, do not deinterlace */
1039             fprintf(stderr, "Deinterlacing failed\n");
1040             av_free(buf);
1041             buf = NULL;
1042             picture2 = picture;
1043         }
1044     } else {
1045         picture2 = picture;
1046     }
1047
1048     if (picture != picture2)
1049         *picture = *picture2;
1050     *bufp = buf;
1051 }
1052
1053 /* we begin to correct av delay at this threshold */
1054 #define AV_DELAY_MAX 0.100
1055
1056 static void do_subtitle_out(AVFormatContext *s,
1057                             OutputStream *ost,
1058                             InputStream *ist,
1059                             AVSubtitle *sub,
1060                             int64_t pts)
1061 {
1062     static uint8_t *subtitle_out = NULL;
1063     int subtitle_out_max_size = 1024 * 1024;
1064     int subtitle_out_size, nb, i;
1065     AVCodecContext *enc;
1066     AVPacket pkt;
1067
1068     if (pts == AV_NOPTS_VALUE) {
1069         fprintf(stderr, "Subtitle packets must have a pts\n");
1070         if (exit_on_error)
1071             ffmpeg_exit(1);
1072         return;
1073     }
1074
1075     enc = ost->st->codec;
1076
1077     if (!subtitle_out) {
1078         subtitle_out = av_malloc(subtitle_out_max_size);
1079     }
1080
1081     /* Note: DVB subtitle need one packet to draw them and one other
1082        packet to clear them */
1083     /* XXX: signal it in the codec context ? */
1084     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1085         nb = 2;
1086     else
1087         nb = 1;
1088
1089     for(i = 0; i < nb; i++) {
1090         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1091         // start_display_time is required to be 0
1092         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1093         sub->end_display_time -= sub->start_display_time;
1094         sub->start_display_time = 0;
1095         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1096                                                     subtitle_out_max_size, sub);
1097         if (subtitle_out_size < 0) {
1098             fprintf(stderr, "Subtitle encoding failed\n");
1099             ffmpeg_exit(1);
1100         }
1101
1102         av_init_packet(&pkt);
1103         pkt.stream_index = ost->index;
1104         pkt.data = subtitle_out;
1105         pkt.size = subtitle_out_size;
1106         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1107         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1108             /* XXX: the pts correction is handled here. Maybe handling
1109                it in the codec would be better */
1110             if (i == 0)
1111                 pkt.pts += 90 * sub->start_display_time;
1112             else
1113                 pkt.pts += 90 * sub->end_display_time;
1114         }
1115         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1116     }
1117 }
1118
1119 static int bit_buffer_size= 1024*256;
1120 static uint8_t *bit_buffer= NULL;
1121
1122 static void do_video_out(AVFormatContext *s,
1123                          OutputStream *ost,
1124                          InputStream *ist,
1125                          AVFrame *in_picture,
1126                          int *frame_size, float quality)
1127 {
1128     int nb_frames, i, ret, resample_changed;
1129     AVFrame *final_picture, *formatted_picture;
1130     AVCodecContext *enc, *dec;
1131     double sync_ipts;
1132
1133     enc = ost->st->codec;
1134     dec = ist->st->codec;
1135
1136     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1137
1138     /* by default, we output a single frame */
1139     nb_frames = 1;
1140
1141     *frame_size = 0;
1142
1143     if(video_sync_method){
1144         double vdelta = sync_ipts - ost->sync_opts;
1145         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1146         if (vdelta < -1.1)
1147             nb_frames = 0;
1148         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1149             if(vdelta<=-0.6){
1150                 nb_frames=0;
1151             }else if(vdelta>0.6)
1152                 ost->sync_opts= lrintf(sync_ipts);
1153         }else if (vdelta > 1.1)
1154             nb_frames = lrintf(vdelta);
1155 //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);
1156         if (nb_frames == 0){
1157             ++nb_frames_drop;
1158             if (verbose>2)
1159                 fprintf(stderr, "*** drop!\n");
1160         }else if (nb_frames > 1) {
1161             nb_frames_dup += nb_frames - 1;
1162             if (verbose>2)
1163                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1164         }
1165     }else
1166         ost->sync_opts= lrintf(sync_ipts);
1167
1168     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1169     if (nb_frames <= 0)
1170         return;
1171
1172     formatted_picture = in_picture;
1173     final_picture = formatted_picture;
1174
1175     resample_changed = ost->resample_width   != dec->width  ||
1176                        ost->resample_height  != dec->height ||
1177                        ost->resample_pix_fmt != dec->pix_fmt;
1178
1179     if (resample_changed) {
1180         av_log(NULL, AV_LOG_INFO,
1181                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1182                ist->file_index, ist->st->index,
1183                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1184                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1185         if(!ost->video_resample)
1186             ffmpeg_exit(1);
1187     }
1188
1189 #if !CONFIG_AVFILTER
1190     if (ost->video_resample) {
1191         final_picture = &ost->pict_tmp;
1192         if (resample_changed) {
1193             /* initialize a new scaler context */
1194             sws_freeContext(ost->img_resample_ctx);
1195             ost->img_resample_ctx = sws_getContext(
1196                 ist->st->codec->width,
1197                 ist->st->codec->height,
1198                 ist->st->codec->pix_fmt,
1199                 ost->st->codec->width,
1200                 ost->st->codec->height,
1201                 ost->st->codec->pix_fmt,
1202                 ost->sws_flags, NULL, NULL, NULL);
1203             if (ost->img_resample_ctx == NULL) {
1204                 fprintf(stderr, "Cannot get resampling context\n");
1205                 ffmpeg_exit(1);
1206             }
1207         }
1208         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1209               0, ost->resample_height, final_picture->data, final_picture->linesize);
1210     }
1211 #endif
1212
1213     /* duplicates frame if needed */
1214     for(i=0;i<nb_frames;i++) {
1215         AVPacket pkt;
1216         av_init_packet(&pkt);
1217         pkt.stream_index= ost->index;
1218
1219         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1220             /* raw pictures are written as AVPicture structure to
1221                avoid any copies. We support temorarily the older
1222                method. */
1223             AVFrame* old_frame = enc->coded_frame;
1224             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1225             pkt.data= (uint8_t *)final_picture;
1226             pkt.size=  sizeof(AVPicture);
1227             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1228             pkt.flags |= AV_PKT_FLAG_KEY;
1229
1230             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1231             enc->coded_frame = old_frame;
1232         } else {
1233             AVFrame big_picture;
1234
1235             big_picture= *final_picture;
1236             /* better than nothing: use input picture interlaced
1237                settings */
1238             big_picture.interlaced_frame = in_picture->interlaced_frame;
1239             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1240                 if(top_field_first == -1)
1241                     big_picture.top_field_first = in_picture->top_field_first;
1242                 else
1243                     big_picture.top_field_first = top_field_first;
1244             }
1245
1246             /* handles sameq here. This is not correct because it may
1247                not be a global option */
1248             big_picture.quality = quality;
1249             if(!me_threshold)
1250                 big_picture.pict_type = 0;
1251 //            big_picture.pts = AV_NOPTS_VALUE;
1252             big_picture.pts= ost->sync_opts;
1253 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1254 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1255             if (ost->forced_kf_index < ost->forced_kf_count &&
1256                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1257                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1258                 ost->forced_kf_index++;
1259             }
1260             ret = avcodec_encode_video(enc,
1261                                        bit_buffer, bit_buffer_size,
1262                                        &big_picture);
1263             if (ret < 0) {
1264                 fprintf(stderr, "Video encoding failed\n");
1265                 ffmpeg_exit(1);
1266             }
1267
1268             if(ret>0){
1269                 pkt.data= bit_buffer;
1270                 pkt.size= ret;
1271                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1272                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1273 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1274    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1275    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1276
1277                 if(enc->coded_frame->key_frame)
1278                     pkt.flags |= AV_PKT_FLAG_KEY;
1279                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1280                 *frame_size = ret;
1281                 video_size += ret;
1282                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1283                 //        enc->frame_number-1, ret, enc->pict_type);
1284                 /* if two pass, output log */
1285                 if (ost->logfile && enc->stats_out) {
1286                     fprintf(ost->logfile, "%s", enc->stats_out);
1287                 }
1288             }
1289         }
1290         ost->sync_opts++;
1291         ost->frame_number++;
1292     }
1293 }
1294
1295 static double psnr(double d){
1296     return -10.0*log(d)/log(10.0);
1297 }
1298
1299 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1300                            int frame_size)
1301 {
1302     AVCodecContext *enc;
1303     int frame_number;
1304     double ti1, bitrate, avg_bitrate;
1305
1306     /* this is executed just the first time do_video_stats is called */
1307     if (!vstats_file) {
1308         vstats_file = fopen(vstats_filename, "w");
1309         if (!vstats_file) {
1310             perror("fopen");
1311             ffmpeg_exit(1);
1312         }
1313     }
1314
1315     enc = ost->st->codec;
1316     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1317         frame_number = ost->frame_number;
1318         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1319         if (enc->flags&CODEC_FLAG_PSNR)
1320             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1321
1322         fprintf(vstats_file,"f_size= %6d ", frame_size);
1323         /* compute pts value */
1324         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1325         if (ti1 < 0.01)
1326             ti1 = 0.01;
1327
1328         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1329         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1330         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1331             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1332         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1333     }
1334 }
1335
1336 static void print_report(AVFormatContext **output_files,
1337                          OutputStream **ost_table, int nb_ostreams,
1338                          int is_last_report)
1339 {
1340     char buf[1024];
1341     OutputStream *ost;
1342     AVFormatContext *oc;
1343     int64_t total_size;
1344     AVCodecContext *enc;
1345     int frame_number, vid, i;
1346     double bitrate, ti1, pts;
1347     static int64_t last_time = -1;
1348     static int qp_histogram[52];
1349
1350     if (!is_last_report) {
1351         int64_t cur_time;
1352         /* display the report every 0.5 seconds */
1353         cur_time = av_gettime();
1354         if (last_time == -1) {
1355             last_time = cur_time;
1356             return;
1357         }
1358         if ((cur_time - last_time) < 500000)
1359             return;
1360         last_time = cur_time;
1361     }
1362
1363
1364     oc = output_files[0];
1365
1366     total_size = avio_size(oc->pb);
1367     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1368         total_size= avio_tell(oc->pb);
1369
1370     buf[0] = '\0';
1371     ti1 = 1e10;
1372     vid = 0;
1373     for(i=0;i<nb_ostreams;i++) {
1374         float q = -1;
1375         ost = ost_table[i];
1376         enc = ost->st->codec;
1377         if (!ost->st->stream_copy && enc->coded_frame)
1378             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1379         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1380             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1381         }
1382         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1383             float t = (av_gettime()-timer_start) / 1000000.0;
1384
1385             frame_number = ost->frame_number;
1386             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1387                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1388             if(is_last_report)
1389                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1390             if(qp_hist){
1391                 int j;
1392                 int qp = lrintf(q);
1393                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1394                     qp_histogram[qp]++;
1395                 for(j=0; j<32; j++)
1396                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1397             }
1398             if (enc->flags&CODEC_FLAG_PSNR){
1399                 int j;
1400                 double error, error_sum=0;
1401                 double scale, scale_sum=0;
1402                 char type[3]= {'Y','U','V'};
1403                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1404                 for(j=0; j<3; j++){
1405                     if(is_last_report){
1406                         error= enc->error[j];
1407                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1408                     }else{
1409                         error= enc->coded_frame->error[j];
1410                         scale= enc->width*enc->height*255.0*255.0;
1411                     }
1412                     if(j) scale/=4;
1413                     error_sum += error;
1414                     scale_sum += scale;
1415                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1416                 }
1417                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1418             }
1419             vid = 1;
1420         }
1421         /* compute min output value */
1422         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1423         if ((pts < ti1) && (pts > 0))
1424             ti1 = pts;
1425     }
1426     if (ti1 < 0.01)
1427         ti1 = 0.01;
1428
1429     if (verbose > 0 || is_last_report) {
1430         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1431
1432         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1433             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1434             (double)total_size / 1024, ti1, bitrate);
1435
1436         if (nb_frames_dup || nb_frames_drop)
1437           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1438                   nb_frames_dup, nb_frames_drop);
1439
1440         if (verbose >= 0)
1441             fprintf(stderr, "%s    \r", buf);
1442
1443         fflush(stderr);
1444     }
1445
1446     if (is_last_report && verbose >= 0){
1447         int64_t raw= audio_size + video_size + extra_size;
1448         fprintf(stderr, "\n");
1449         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1450                 video_size/1024.0,
1451                 audio_size/1024.0,
1452                 extra_size/1024.0,
1453                 100.0*(total_size - raw)/raw
1454         );
1455     }
1456 }
1457
1458 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1459 {
1460     int fill_char = 0x00;
1461     if (sample_fmt == AV_SAMPLE_FMT_U8)
1462         fill_char = 0x80;
1463     memset(buf, fill_char, size);
1464 }
1465
1466 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1467 static int output_packet(InputStream *ist, int ist_index,
1468                          OutputStream **ost_table, int nb_ostreams,
1469                          const AVPacket *pkt)
1470 {
1471     AVFormatContext *os;
1472     OutputStream *ost;
1473     int ret, i;
1474     int got_output;
1475     AVFrame picture;
1476     void *buffer_to_free = NULL;
1477     static unsigned int samples_size= 0;
1478     AVSubtitle subtitle, *subtitle_to_free;
1479     int64_t pkt_pts = AV_NOPTS_VALUE;
1480 #if CONFIG_AVFILTER
1481     int frame_available;
1482 #endif
1483     float quality;
1484
1485     AVPacket avpkt;
1486     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1487
1488     if(ist->next_pts == AV_NOPTS_VALUE)
1489         ist->next_pts= ist->pts;
1490
1491     if (pkt == NULL) {
1492         /* EOF handling */
1493         av_init_packet(&avpkt);
1494         avpkt.data = NULL;
1495         avpkt.size = 0;
1496         goto handle_eof;
1497     } else {
1498         avpkt = *pkt;
1499     }
1500
1501     if(pkt->dts != AV_NOPTS_VALUE)
1502         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1503     if(pkt->pts != AV_NOPTS_VALUE)
1504         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1505
1506     //while we have more to decode or while the decoder did output something on EOF
1507     while (avpkt.size > 0 || (!pkt && got_output)) {
1508         uint8_t *data_buf, *decoded_data_buf;
1509         int data_size, decoded_data_size;
1510     handle_eof:
1511         ist->pts= ist->next_pts;
1512
1513         if(avpkt.size && avpkt.size != pkt->size &&
1514            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1515             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1516             ist->showed_multi_packet_warning=1;
1517         }
1518
1519         /* decode the packet if needed */
1520         decoded_data_buf = NULL; /* fail safe */
1521         decoded_data_size= 0;
1522         data_buf  = avpkt.data;
1523         data_size = avpkt.size;
1524         subtitle_to_free = NULL;
1525         if (ist->decoding_needed) {
1526             switch(ist->st->codec->codec_type) {
1527             case AVMEDIA_TYPE_AUDIO:{
1528                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1529                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1530                     av_free(samples);
1531                     samples= av_malloc(samples_size);
1532                 }
1533                 decoded_data_size= samples_size;
1534                     /* XXX: could avoid copy if PCM 16 bits with same
1535                        endianness as CPU */
1536                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1537                                             &avpkt);
1538                 if (ret < 0)
1539                     goto fail_decode;
1540                 avpkt.data += ret;
1541                 avpkt.size -= ret;
1542                 data_size   = ret;
1543                 got_output  = decoded_data_size > 0;
1544                 /* Some bug in mpeg audio decoder gives */
1545                 /* decoded_data_size < 0, it seems they are overflows */
1546                 if (!got_output) {
1547                     /* no audio frame */
1548                     continue;
1549                 }
1550                 decoded_data_buf = (uint8_t *)samples;
1551                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1552                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1553                 break;}
1554             case AVMEDIA_TYPE_VIDEO:
1555                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1556                     /* XXX: allocate picture correctly */
1557                     avcodec_get_frame_defaults(&picture);
1558                     avpkt.pts = pkt_pts;
1559                     avpkt.dts = ist->pts;
1560                     pkt_pts = AV_NOPTS_VALUE;
1561
1562                     ret = avcodec_decode_video2(ist->st->codec,
1563                                                 &picture, &got_output, &avpkt);
1564                     quality = same_quality ? picture.quality : 0;
1565                     if (ret < 0)
1566                         goto fail_decode;
1567                     if (!got_output) {
1568                         /* no picture yet */
1569                         goto discard_packet;
1570                     }
1571                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1572                     if (ist->st->codec->time_base.num != 0) {
1573                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1574                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1575                                           ist->st->codec->time_base.num * ticks) /
1576                             ist->st->codec->time_base.den;
1577                     }
1578                     avpkt.size = 0;
1579                     buffer_to_free = NULL;
1580                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1581                     break;
1582             case AVMEDIA_TYPE_SUBTITLE:
1583                 ret = avcodec_decode_subtitle2(ist->st->codec,
1584                                                &subtitle, &got_output, &avpkt);
1585                 if (ret < 0)
1586                     goto fail_decode;
1587                 if (!got_output) {
1588                     goto discard_packet;
1589                 }
1590                 subtitle_to_free = &subtitle;
1591                 avpkt.size = 0;
1592                 break;
1593             default:
1594                 goto fail_decode;
1595             }
1596         } else {
1597             switch(ist->st->codec->codec_type) {
1598             case AVMEDIA_TYPE_AUDIO:
1599                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1600                     ist->st->codec->sample_rate;
1601                 break;
1602             case AVMEDIA_TYPE_VIDEO:
1603                 if (ist->st->codec->time_base.num != 0) {
1604                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1605                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1606                                       ist->st->codec->time_base.num * ticks) /
1607                         ist->st->codec->time_base.den;
1608                 }
1609                 break;
1610             }
1611             ret = avpkt.size;
1612             avpkt.size = 0;
1613         }
1614
1615 #if CONFIG_AVFILTER
1616         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1617             for (i = 0; i < nb_ostreams; i++) {
1618                 ost = ost_table[i];
1619                 if (ost->input_video_filter && ost->source_index == ist_index) {
1620                     AVRational sar;
1621                     if (ist->st->sample_aspect_ratio.num)
1622                         sar = ist->st->sample_aspect_ratio;
1623                     else
1624                         sar = ist->st->codec->sample_aspect_ratio;
1625                     // add it to be filtered
1626                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1627                                              ist->pts,
1628                                              sar);
1629                 }
1630             }
1631         }
1632 #endif
1633
1634         // preprocess audio (volume)
1635         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1636             if (audio_volume != 256) {
1637                 short *volp;
1638                 volp = samples;
1639                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1640                     int v = ((*volp) * audio_volume + 128) >> 8;
1641                     if (v < -32768) v = -32768;
1642                     if (v >  32767) v = 32767;
1643                     *volp++ = v;
1644                 }
1645             }
1646         }
1647
1648         /* frame rate emulation */
1649         if (rate_emu) {
1650             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1651             int64_t now = av_gettime() - ist->start;
1652             if (pts > now)
1653                 usleep(pts - now);
1654         }
1655         /* if output time reached then transcode raw format,
1656            encode packets and output them */
1657         if (start_time == 0 || ist->pts >= start_time)
1658             for(i=0;i<nb_ostreams;i++) {
1659                 int frame_size;
1660
1661                 ost = ost_table[i];
1662                 if (ost->source_index == ist_index) {
1663 #if CONFIG_AVFILTER
1664                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1665                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1666                 while (frame_available) {
1667                     AVRational ist_pts_tb;
1668                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1669                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1670                     if (ost->picref)
1671                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1672 #endif
1673                     os = output_files[ost->file_index];
1674
1675                     /* set the input output pts pairs */
1676                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1677
1678                     if (ost->encoding_needed) {
1679                         av_assert0(ist->decoding_needed);
1680                         switch(ost->st->codec->codec_type) {
1681                         case AVMEDIA_TYPE_AUDIO:
1682                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1683                             break;
1684                         case AVMEDIA_TYPE_VIDEO:
1685 #if CONFIG_AVFILTER
1686                             if (ost->picref->video && !ost->frame_aspect_ratio)
1687                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1688 #endif
1689                             do_video_out(os, ost, ist, &picture, &frame_size,
1690                                          same_quality ? quality : ost->st->codec->global_quality);
1691                             if (vstats_filename && frame_size)
1692                                 do_video_stats(os, ost, frame_size);
1693                             break;
1694                         case AVMEDIA_TYPE_SUBTITLE:
1695                             do_subtitle_out(os, ost, ist, &subtitle,
1696                                             pkt->pts);
1697                             break;
1698                         default:
1699                             abort();
1700                         }
1701                     } else {
1702                         AVFrame avframe; //FIXME/XXX remove this
1703                         AVPacket opkt;
1704                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1705
1706                         av_init_packet(&opkt);
1707
1708                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1709 #if !CONFIG_AVFILTER
1710                             continue;
1711 #else
1712                             goto cont;
1713 #endif
1714
1715                         /* no reencoding needed : output the packet directly */
1716                         /* force the input stream PTS */
1717
1718                         avcodec_get_frame_defaults(&avframe);
1719                         ost->st->codec->coded_frame= &avframe;
1720                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1721
1722                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1723                             audio_size += data_size;
1724                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1725                             video_size += data_size;
1726                             ost->sync_opts++;
1727                         }
1728
1729                         opkt.stream_index= ost->index;
1730                         if(pkt->pts != AV_NOPTS_VALUE)
1731                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1732                         else
1733                             opkt.pts= AV_NOPTS_VALUE;
1734
1735                         if (pkt->dts == AV_NOPTS_VALUE)
1736                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1737                         else
1738                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1739                         opkt.dts -= ost_tb_start_time;
1740
1741                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1742                         opkt.flags= pkt->flags;
1743
1744                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1745                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1746                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1747                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1748                            ) {
1749                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1750                                 opkt.destruct= av_destruct_packet;
1751                         } else {
1752                             opkt.data = data_buf;
1753                             opkt.size = data_size;
1754                         }
1755
1756                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1757                         ost->st->codec->frame_number++;
1758                         ost->frame_number++;
1759                         av_free_packet(&opkt);
1760                     }
1761 #if CONFIG_AVFILTER
1762                     cont:
1763                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1764                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1765                     if (ost->picref)
1766                         avfilter_unref_buffer(ost->picref);
1767                 }
1768 #endif
1769                 }
1770             }
1771
1772         av_free(buffer_to_free);
1773         /* XXX: allocate the subtitles in the codec ? */
1774         if (subtitle_to_free) {
1775             avsubtitle_free(subtitle_to_free);
1776             subtitle_to_free = NULL;
1777         }
1778     }
1779  discard_packet:
1780     if (pkt == NULL) {
1781         /* EOF handling */
1782
1783         for(i=0;i<nb_ostreams;i++) {
1784             ost = ost_table[i];
1785             if (ost->source_index == ist_index) {
1786                 AVCodecContext *enc= ost->st->codec;
1787                 os = output_files[ost->file_index];
1788
1789                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1790                     continue;
1791                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1792                     continue;
1793
1794                 if (ost->encoding_needed) {
1795                     for(;;) {
1796                         AVPacket pkt;
1797                         int fifo_bytes;
1798                         av_init_packet(&pkt);
1799                         pkt.stream_index= ost->index;
1800
1801                         switch(ost->st->codec->codec_type) {
1802                         case AVMEDIA_TYPE_AUDIO:
1803                             fifo_bytes = av_fifo_size(ost->fifo);
1804                             ret = 0;
1805                             /* encode any samples remaining in fifo */
1806                             if (fifo_bytes > 0) {
1807                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1808                                 int fs_tmp = enc->frame_size;
1809
1810                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1811                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1812                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1813                                 } else { /* pad */
1814                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1815                                     if (allocated_audio_buf_size < frame_bytes)
1816                                         ffmpeg_exit(1);
1817                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1818                                 }
1819
1820                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1821                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1822                                                           ost->st->time_base.num, enc->sample_rate);
1823                                 enc->frame_size = fs_tmp;
1824                             }
1825                             if(ret <= 0) {
1826                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1827                             }
1828                             if (ret < 0) {
1829                                 fprintf(stderr, "Audio encoding failed\n");
1830                                 ffmpeg_exit(1);
1831                             }
1832                             audio_size += ret;
1833                             pkt.flags |= AV_PKT_FLAG_KEY;
1834                             break;
1835                         case AVMEDIA_TYPE_VIDEO:
1836                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1837                             if (ret < 0) {
1838                                 fprintf(stderr, "Video encoding failed\n");
1839                                 ffmpeg_exit(1);
1840                             }
1841                             video_size += ret;
1842                             if(enc->coded_frame && enc->coded_frame->key_frame)
1843                                 pkt.flags |= AV_PKT_FLAG_KEY;
1844                             if (ost->logfile && enc->stats_out) {
1845                                 fprintf(ost->logfile, "%s", enc->stats_out);
1846                             }
1847                             break;
1848                         default:
1849                             ret=-1;
1850                         }
1851
1852                         if(ret<=0)
1853                             break;
1854                         pkt.data= bit_buffer;
1855                         pkt.size= ret;
1856                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1857                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1858                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1859                     }
1860                 }
1861             }
1862         }
1863     }
1864
1865     return 0;
1866  fail_decode:
1867     return -1;
1868 }
1869
1870 static void print_sdp(AVFormatContext **avc, int n)
1871 {
1872     char sdp[2048];
1873
1874     av_sdp_create(avc, n, sdp, sizeof(sdp));
1875     printf("SDP:\n%s\n", sdp);
1876     fflush(stdout);
1877 }
1878
1879 static int copy_chapters(int infile, int outfile)
1880 {
1881     AVFormatContext *is = input_files[infile].ctx;
1882     AVFormatContext *os = output_files[outfile];
1883     int i;
1884
1885     for (i = 0; i < is->nb_chapters; i++) {
1886         AVChapter *in_ch = is->chapters[i], *out_ch;
1887         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1888                                       AV_TIME_BASE_Q, in_ch->time_base);
1889         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1890                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1891
1892
1893         if (in_ch->end < ts_off)
1894             continue;
1895         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1896             break;
1897
1898         out_ch = av_mallocz(sizeof(AVChapter));
1899         if (!out_ch)
1900             return AVERROR(ENOMEM);
1901
1902         out_ch->id        = in_ch->id;
1903         out_ch->time_base = in_ch->time_base;
1904         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1905         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1906
1907         if (metadata_chapters_autocopy)
1908             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1909
1910         os->nb_chapters++;
1911         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1912         if (!os->chapters)
1913             return AVERROR(ENOMEM);
1914         os->chapters[os->nb_chapters - 1] = out_ch;
1915     }
1916     return 0;
1917 }
1918
1919 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1920                                     AVCodecContext *avctx)
1921 {
1922     char *p;
1923     int n = 1, i;
1924     int64_t t;
1925
1926     for (p = kf; *p; p++)
1927         if (*p == ',')
1928             n++;
1929     ost->forced_kf_count = n;
1930     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1931     if (!ost->forced_kf_pts) {
1932         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1933         ffmpeg_exit(1);
1934     }
1935     for (i = 0; i < n; i++) {
1936         p = i ? strchr(p, ',') + 1 : kf;
1937         t = parse_time_or_die("force_key_frames", p, 1);
1938         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1939     }
1940 }
1941
1942 /*
1943  * The following code is the main loop of the file converter
1944  */
1945 static int transcode(AVFormatContext **output_files,
1946                      int nb_output_files,
1947                      InputFile *input_files,
1948                      int nb_input_files,
1949                      StreamMap *stream_maps, int nb_stream_maps)
1950 {
1951     int ret = 0, i, j, k, n, nb_ostreams = 0;
1952     AVFormatContext *is, *os;
1953     AVCodecContext *codec, *icodec;
1954     OutputStream *ost, **ost_table = NULL;
1955     InputStream *ist;
1956     char error[1024];
1957     int want_sdp = 1;
1958     uint8_t no_packet[MAX_FILES]={0};
1959     int no_packet_count=0;
1960
1961     if (rate_emu)
1962         for (i = 0; i < nb_input_streams; i++)
1963             input_streams[i].start = av_gettime();
1964
1965     /* output stream init */
1966     nb_ostreams = 0;
1967     for(i=0;i<nb_output_files;i++) {
1968         os = output_files[i];
1969         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1970             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1971             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1972             ret = AVERROR(EINVAL);
1973             goto fail;
1974         }
1975         nb_ostreams += os->nb_streams;
1976     }
1977     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1978         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1979         ret = AVERROR(EINVAL);
1980         goto fail;
1981     }
1982
1983     /* Sanity check the mapping args -- do the input files & streams exist? */
1984     for(i=0;i<nb_stream_maps;i++) {
1985         int fi = stream_maps[i].file_index;
1986         int si = stream_maps[i].stream_index;
1987
1988         if (fi < 0 || fi > nb_input_files - 1 ||
1989             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1990             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1991             ret = AVERROR(EINVAL);
1992             goto fail;
1993         }
1994         fi = stream_maps[i].sync_file_index;
1995         si = stream_maps[i].sync_stream_index;
1996         if (fi < 0 || fi > nb_input_files - 1 ||
1997             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1998             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1999             ret = AVERROR(EINVAL);
2000             goto fail;
2001         }
2002     }
2003
2004     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2005     if (!ost_table)
2006         goto fail;
2007     n = 0;
2008     for(k=0;k<nb_output_files;k++) {
2009         os = output_files[k];
2010         for(i=0;i<os->nb_streams;i++,n++) {
2011             int found;
2012             ost = ost_table[n] = output_streams_for_file[k][i];
2013             ost->st = os->streams[i];
2014             if (nb_stream_maps > 0) {
2015                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2016                     stream_maps[n].stream_index;
2017
2018                 /* Sanity check that the stream types match */
2019                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2020                     int i= ost->file_index;
2021                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2022                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2023                         stream_maps[n].file_index, stream_maps[n].stream_index,
2024                         ost->file_index, ost->index);
2025                     ffmpeg_exit(1);
2026                 }
2027
2028             } else {
2029                 int best_nb_frames=-1;
2030                 /* get corresponding input stream index : we select the first one with the right type */
2031                 found = 0;
2032                 for (j = 0; j < nb_input_streams; j++) {
2033                     int skip=0;
2034                     ist = &input_streams[j];
2035                     if(opt_programid){
2036                         int pi,si;
2037                         AVFormatContext *f = input_files[ist->file_index].ctx;
2038                         skip=1;
2039                         for(pi=0; pi<f->nb_programs; pi++){
2040                             AVProgram *p= f->programs[pi];
2041                             if(p->id == opt_programid)
2042                                 for(si=0; si<p->nb_stream_indexes; si++){
2043                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2044                                         skip=0;
2045                                 }
2046                         }
2047                     }
2048                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2049                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2050                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2051                             best_nb_frames= ist->st->codec_info_nb_frames;
2052                             ost->source_index = j;
2053                             found = 1;
2054                         }
2055                     }
2056                 }
2057
2058                 if (!found) {
2059                     if(! opt_programid) {
2060                         /* try again and reuse existing stream */
2061                         for (j = 0; j < nb_input_streams; j++) {
2062                             ist = &input_streams[j];
2063                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2064                                 && ist->st->discard != AVDISCARD_ALL) {
2065                                 ost->source_index = j;
2066                                 found = 1;
2067                             }
2068                         }
2069                     }
2070                     if (!found) {
2071                         int i= ost->file_index;
2072                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2073                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2074                                 ost->file_index, ost->index);
2075                         ffmpeg_exit(1);
2076                     }
2077                 }
2078             }
2079             ist = &input_streams[ost->source_index];
2080             ist->discard = 0;
2081             ost->sync_ist = (nb_stream_maps > 0) ?
2082                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2083                          stream_maps[n].sync_stream_index] : ist;
2084         }
2085     }
2086
2087     /* for each output stream, we compute the right encoding parameters */
2088     for(i=0;i<nb_ostreams;i++) {
2089         ost = ost_table[i];
2090         os = output_files[ost->file_index];
2091         ist = &input_streams[ost->source_index];
2092
2093         codec = ost->st->codec;
2094         icodec = ist->st->codec;
2095
2096         if (metadata_streams_autocopy)
2097             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2098                          AV_DICT_DONT_OVERWRITE);
2099
2100         ost->st->disposition = ist->st->disposition;
2101         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2102         codec->chroma_sample_location = icodec->chroma_sample_location;
2103
2104         if (ost->st->stream_copy) {
2105             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2106
2107             if (extra_size > INT_MAX)
2108                 goto fail;
2109
2110             /* if stream_copy is selected, no need to decode or encode */
2111             codec->codec_id = icodec->codec_id;
2112             codec->codec_type = icodec->codec_type;
2113
2114             if(!codec->codec_tag){
2115                 if(   !os->oformat->codec_tag
2116                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2117                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2118                     codec->codec_tag = icodec->codec_tag;
2119             }
2120
2121             codec->bit_rate = icodec->bit_rate;
2122             codec->rc_max_rate    = icodec->rc_max_rate;
2123             codec->rc_buffer_size = icodec->rc_buffer_size;
2124             codec->extradata= av_mallocz(extra_size);
2125             if (!codec->extradata)
2126                 goto fail;
2127             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2128             codec->extradata_size= icodec->extradata_size;
2129             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){
2130                 codec->time_base = icodec->time_base;
2131                 codec->time_base.num *= icodec->ticks_per_frame;
2132                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2133                           codec->time_base.num, codec->time_base.den, INT_MAX);
2134             }else
2135                 codec->time_base = ist->st->time_base;
2136             switch(codec->codec_type) {
2137             case AVMEDIA_TYPE_AUDIO:
2138                 if(audio_volume != 256) {
2139                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2140                     ffmpeg_exit(1);
2141                 }
2142                 codec->channel_layout = icodec->channel_layout;
2143                 codec->sample_rate = icodec->sample_rate;
2144                 codec->channels = icodec->channels;
2145                 codec->frame_size = icodec->frame_size;
2146                 codec->audio_service_type = icodec->audio_service_type;
2147                 codec->block_align= icodec->block_align;
2148                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2149                     codec->block_align= 0;
2150                 if(codec->codec_id == CODEC_ID_AC3)
2151                     codec->block_align= 0;
2152                 break;
2153             case AVMEDIA_TYPE_VIDEO:
2154                 codec->pix_fmt = icodec->pix_fmt;
2155                 codec->width = icodec->width;
2156                 codec->height = icodec->height;
2157                 codec->has_b_frames = icodec->has_b_frames;
2158                 if (!codec->sample_aspect_ratio.num) {
2159                     codec->sample_aspect_ratio =
2160                     ost->st->sample_aspect_ratio =
2161                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2162                         ist->st->codec->sample_aspect_ratio.num ?
2163                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2164                 }
2165                 break;
2166             case AVMEDIA_TYPE_SUBTITLE:
2167                 codec->width = icodec->width;
2168                 codec->height = icodec->height;
2169                 break;
2170             case AVMEDIA_TYPE_DATA:
2171                 break;
2172             default:
2173                 abort();
2174             }
2175         } else {
2176             if (!ost->enc)
2177                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2178             switch(codec->codec_type) {
2179             case AVMEDIA_TYPE_AUDIO:
2180                 ost->fifo= av_fifo_alloc(1024);
2181                 if(!ost->fifo)
2182                     goto fail;
2183                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2184                 if (!codec->sample_rate) {
2185                     codec->sample_rate = icodec->sample_rate;
2186                     if (icodec->lowres)
2187                         codec->sample_rate >>= icodec->lowres;
2188                 }
2189                 choose_sample_rate(ost->st, ost->enc);
2190                 codec->time_base = (AVRational){1, codec->sample_rate};
2191                 if (!codec->channels)
2192                     codec->channels = icodec->channels;
2193                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2194                     codec->channel_layout = 0;
2195                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2196                 icodec->request_channels = codec->channels;
2197                 ist->decoding_needed = 1;
2198                 ost->encoding_needed = 1;
2199                 ost->resample_sample_fmt  = icodec->sample_fmt;
2200                 ost->resample_sample_rate = icodec->sample_rate;
2201                 ost->resample_channels    = icodec->channels;
2202                 break;
2203             case AVMEDIA_TYPE_VIDEO:
2204                 if (codec->pix_fmt == PIX_FMT_NONE)
2205                     codec->pix_fmt = icodec->pix_fmt;
2206                 choose_pixel_fmt(ost->st, ost->enc);
2207
2208                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2209                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2210                     ffmpeg_exit(1);
2211                 }
2212                 ost->video_resample = codec->width   != icodec->width  ||
2213                                       codec->height  != icodec->height ||
2214                                       codec->pix_fmt != icodec->pix_fmt;
2215                 if (ost->video_resample) {
2216 #if !CONFIG_AVFILTER
2217                     avcodec_get_frame_defaults(&ost->pict_tmp);
2218                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2219                                          codec->width, codec->height)) {
2220                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2221                         ffmpeg_exit(1);
2222                     }
2223                     ost->img_resample_ctx = sws_getContext(
2224                         icodec->width,
2225                         icodec->height,
2226                             icodec->pix_fmt,
2227                             codec->width,
2228                             codec->height,
2229                             codec->pix_fmt,
2230                             ost->sws_flags, NULL, NULL, NULL);
2231                     if (ost->img_resample_ctx == NULL) {
2232                         fprintf(stderr, "Cannot get resampling context\n");
2233                         ffmpeg_exit(1);
2234                     }
2235 #endif
2236                     codec->bits_per_raw_sample= 0;
2237                 }
2238                 if (!codec->width || !codec->height) {
2239                     codec->width  = icodec->width;
2240                     codec->height = icodec->height;
2241                 }
2242                 ost->resample_height = icodec->height;
2243                 ost->resample_width  = icodec->width;
2244                 ost->resample_pix_fmt= icodec->pix_fmt;
2245                 ost->encoding_needed = 1;
2246                 ist->decoding_needed = 1;
2247
2248                 if (!ost->frame_rate.num)
2249                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2250                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2251                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2252                     ost->frame_rate = ost->enc->supported_framerates[idx];
2253                 }
2254                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2255
2256 #if CONFIG_AVFILTER
2257                 if (configure_video_filters(ist, ost)) {
2258                     fprintf(stderr, "Error opening filters!\n");
2259                     exit(1);
2260                 }
2261 #endif
2262                 break;
2263             case AVMEDIA_TYPE_SUBTITLE:
2264                 ost->encoding_needed = 1;
2265                 ist->decoding_needed = 1;
2266                 break;
2267             default:
2268                 abort();
2269                 break;
2270             }
2271             /* two pass mode */
2272             if (ost->encoding_needed &&
2273                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2274                 char logfilename[1024];
2275                 FILE *f;
2276
2277                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2278                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2279                          i);
2280                 if (codec->flags & CODEC_FLAG_PASS1) {
2281                     f = fopen(logfilename, "wb");
2282                     if (!f) {
2283                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2284                         ffmpeg_exit(1);
2285                     }
2286                     ost->logfile = f;
2287                 } else {
2288                     char  *logbuffer;
2289                     size_t logbuffer_size;
2290                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2291                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2292                         ffmpeg_exit(1);
2293                     }
2294                     codec->stats_in = logbuffer;
2295                 }
2296             }
2297         }
2298         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2299             int size= codec->width * codec->height;
2300             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2301         }
2302     }
2303
2304     if (!bit_buffer)
2305         bit_buffer = av_malloc(bit_buffer_size);
2306     if (!bit_buffer) {
2307         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2308                 bit_buffer_size);
2309         ret = AVERROR(ENOMEM);
2310         goto fail;
2311     }
2312
2313     /* open each encoder */
2314     for(i=0;i<nb_ostreams;i++) {
2315         ost = ost_table[i];
2316         if (ost->encoding_needed) {
2317             AVCodec *codec = ost->enc;
2318             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2319             if (!codec) {
2320                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2321                          ost->st->codec->codec_id, ost->file_index, ost->index);
2322                 ret = AVERROR(EINVAL);
2323                 goto dump_format;
2324             }
2325             if (dec->subtitle_header) {
2326                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2327                 if (!ost->st->codec->subtitle_header) {
2328                     ret = AVERROR(ENOMEM);
2329                     goto dump_format;
2330                 }
2331                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2332                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2333             }
2334             if (avcodec_open(ost->st->codec, codec) < 0) {
2335                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2336                         ost->file_index, ost->index);
2337                 ret = AVERROR(EINVAL);
2338                 goto dump_format;
2339             }
2340             extra_size += ost->st->codec->extradata_size;
2341         }
2342     }
2343
2344     /* open each decoder */
2345     for (i = 0; i < nb_input_streams; i++) {
2346         ist = &input_streams[i];
2347         if (ist->decoding_needed) {
2348             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2349             if (!codec)
2350                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2351             if (!codec) {
2352                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2353                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2354                 ret = AVERROR(EINVAL);
2355                 goto dump_format;
2356             }
2357
2358             /* update requested sample format for the decoder based on the
2359                corresponding encoder sample format */
2360             for (j = 0; j < nb_ostreams; j++) {
2361                 ost = ost_table[j];
2362                 if (ost->source_index == i) {
2363                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2364                     break;
2365                 }
2366             }
2367
2368             if (avcodec_open(ist->st->codec, codec) < 0) {
2369                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2370                         ist->file_index, ist->st->index);
2371                 ret = AVERROR(EINVAL);
2372                 goto dump_format;
2373             }
2374             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2375             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2376         }
2377     }
2378
2379     /* init pts */
2380     for (i = 0; i < nb_input_streams; i++) {
2381         AVStream *st;
2382         ist = &input_streams[i];
2383         st= ist->st;
2384         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2385         ist->next_pts = AV_NOPTS_VALUE;
2386         init_pts_correction(&ist->pts_ctx);
2387         ist->is_start = 1;
2388     }
2389
2390     /* set meta data information from input file if required */
2391     for (i=0;i<nb_meta_data_maps;i++) {
2392         AVFormatContext *files[2];
2393         AVDictionary    **meta[2];
2394         int j;
2395
2396 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2397         if ((index) < 0 || (index) >= (nb_elems)) {\
2398             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2399                      (desc), (index));\
2400             ret = AVERROR(EINVAL);\
2401             goto dump_format;\
2402         }
2403
2404         int out_file_index = meta_data_maps[i][0].file;
2405         int in_file_index = meta_data_maps[i][1].file;
2406         if (in_file_index < 0 || out_file_index < 0)
2407             continue;
2408         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2409         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2410
2411         files[0] = output_files[out_file_index];
2412         files[1] = input_files[in_file_index].ctx;
2413
2414         for (j = 0; j < 2; j++) {
2415             MetadataMap *map = &meta_data_maps[i][j];
2416
2417             switch (map->type) {
2418             case 'g':
2419                 meta[j] = &files[j]->metadata;
2420                 break;
2421             case 's':
2422                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2423                 meta[j] = &files[j]->streams[map->index]->metadata;
2424                 break;
2425             case 'c':
2426                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2427                 meta[j] = &files[j]->chapters[map->index]->metadata;
2428                 break;
2429             case 'p':
2430                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2431                 meta[j] = &files[j]->programs[map->index]->metadata;
2432                 break;
2433             }
2434         }
2435
2436         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2437     }
2438
2439     /* copy global metadata by default */
2440     if (metadata_global_autocopy) {
2441
2442         for (i = 0; i < nb_output_files; i++)
2443             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2444                          AV_DICT_DONT_OVERWRITE);
2445     }
2446
2447     /* copy chapters according to chapter maps */
2448     for (i = 0; i < nb_chapter_maps; i++) {
2449         int infile  = chapter_maps[i].in_file;
2450         int outfile = chapter_maps[i].out_file;
2451
2452         if (infile < 0 || outfile < 0)
2453             continue;
2454         if (infile >= nb_input_files) {
2455             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2456             ret = AVERROR(EINVAL);
2457             goto dump_format;
2458         }
2459         if (outfile >= nb_output_files) {
2460             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2461             ret = AVERROR(EINVAL);
2462             goto dump_format;
2463         }
2464         copy_chapters(infile, outfile);
2465     }
2466
2467     /* copy chapters from the first input file that has them*/
2468     if (!nb_chapter_maps)
2469         for (i = 0; i < nb_input_files; i++) {
2470             if (!input_files[i].ctx->nb_chapters)
2471                 continue;
2472
2473             for (j = 0; j < nb_output_files; j++)
2474                 if ((ret = copy_chapters(i, j)) < 0)
2475                     goto dump_format;
2476             break;
2477         }
2478
2479     /* open files and write file headers */
2480     for(i=0;i<nb_output_files;i++) {
2481         os = output_files[i];
2482         if (avformat_write_header(os, &output_opts[i]) < 0) {
2483             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2484             ret = AVERROR(EINVAL);
2485             goto dump_format;
2486         }
2487         assert_avoptions(output_opts[i]);
2488         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2489             want_sdp = 0;
2490         }
2491     }
2492
2493  dump_format:
2494     /* dump the file output parameters - cannot be done before in case
2495        of stream copy */
2496     for(i=0;i<nb_output_files;i++) {
2497         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2498     }
2499
2500     /* dump the stream mapping */
2501     if (verbose >= 0) {
2502         fprintf(stderr, "Stream mapping:\n");
2503         for(i=0;i<nb_ostreams;i++) {
2504             ost = ost_table[i];
2505             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2506                     input_streams[ost->source_index].file_index,
2507                     input_streams[ost->source_index].st->index,
2508                     ost->file_index,
2509                     ost->index);
2510             if (ost->sync_ist != &input_streams[ost->source_index])
2511                 fprintf(stderr, " [sync #%d.%d]",
2512                         ost->sync_ist->file_index,
2513                         ost->sync_ist->st->index);
2514             fprintf(stderr, "\n");
2515         }
2516     }
2517
2518     if (ret) {
2519         fprintf(stderr, "%s\n", error);
2520         goto fail;
2521     }
2522
2523     if (want_sdp) {
2524         print_sdp(output_files, nb_output_files);
2525     }
2526
2527     if (verbose >= 0)
2528         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2529     term_init();
2530
2531     timer_start = av_gettime();
2532
2533     for(; received_sigterm == 0;) {
2534         int file_index, ist_index;
2535         AVPacket pkt;
2536         double ipts_min;
2537         double opts_min;
2538
2539     redo:
2540         ipts_min= 1e100;
2541         opts_min= 1e100;
2542
2543         /* select the stream that we must read now by looking at the
2544            smallest output pts */
2545         file_index = -1;
2546         for(i=0;i<nb_ostreams;i++) {
2547             double ipts, opts;
2548             ost = ost_table[i];
2549             os = output_files[ost->file_index];
2550             ist = &input_streams[ost->source_index];
2551             if(ist->is_past_recording_time || no_packet[ist->file_index])
2552                 continue;
2553                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2554             ipts = (double)ist->pts;
2555             if (!input_files[ist->file_index].eof_reached){
2556                 if(ipts < ipts_min) {
2557                     ipts_min = ipts;
2558                     if(input_sync ) file_index = ist->file_index;
2559                 }
2560                 if(opts < opts_min) {
2561                     opts_min = opts;
2562                     if(!input_sync) file_index = ist->file_index;
2563                 }
2564             }
2565             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2566                 file_index= -1;
2567                 break;
2568             }
2569         }
2570         /* if none, if is finished */
2571         if (file_index < 0) {
2572             if(no_packet_count){
2573                 no_packet_count=0;
2574                 memset(no_packet, 0, sizeof(no_packet));
2575                 usleep(10000);
2576                 continue;
2577             }
2578             break;
2579         }
2580
2581         /* finish if limit size exhausted */
2582         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2583             break;
2584
2585         /* read a frame from it and output it in the fifo */
2586         is = input_files[file_index].ctx;
2587         ret= av_read_frame(is, &pkt);
2588         if(ret == AVERROR(EAGAIN)){
2589             no_packet[file_index]=1;
2590             no_packet_count++;
2591             continue;
2592         }
2593         if (ret < 0) {
2594             input_files[file_index].eof_reached = 1;
2595             if (opt_shortest)
2596                 break;
2597             else
2598                 continue;
2599         }
2600
2601         no_packet_count=0;
2602         memset(no_packet, 0, sizeof(no_packet));
2603
2604         if (do_pkt_dump) {
2605             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2606                              is->streams[pkt.stream_index]);
2607         }
2608         /* the following test is needed in case new streams appear
2609            dynamically in stream : we ignore them */
2610         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2611             goto discard_packet;
2612         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2613         ist = &input_streams[ist_index];
2614         if (ist->discard)
2615             goto discard_packet;
2616
2617         if (pkt.dts != AV_NOPTS_VALUE)
2618             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2619         if (pkt.pts != AV_NOPTS_VALUE)
2620             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2621
2622         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2623             && input_files_ts_scale[file_index][pkt.stream_index]){
2624             if(pkt.pts != AV_NOPTS_VALUE)
2625                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2626             if(pkt.dts != AV_NOPTS_VALUE)
2627                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2628         }
2629
2630 //        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);
2631         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2632             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2633             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2634             int64_t delta= pkt_dts - ist->next_pts;
2635             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2636                 input_files_ts_offset[ist->file_index]-= delta;
2637                 if (verbose > 2)
2638                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2639                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2640                 if(pkt.pts != AV_NOPTS_VALUE)
2641                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2642             }
2643         }
2644
2645         /* finish if recording time exhausted */
2646         if (recording_time != INT64_MAX &&
2647             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2648             ist->is_past_recording_time = 1;
2649             goto discard_packet;
2650         }
2651
2652         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2653         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2654
2655             if (verbose >= 0)
2656                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2657                         ist->file_index, ist->st->index);
2658             if (exit_on_error)
2659                 ffmpeg_exit(1);
2660             av_free_packet(&pkt);
2661             goto redo;
2662         }
2663
2664     discard_packet:
2665         av_free_packet(&pkt);
2666
2667         /* dump report by using the output first video and audio streams */
2668         print_report(output_files, ost_table, nb_ostreams, 0);
2669     }
2670
2671     /* at the end of stream, we must flush the decoder buffers */
2672     for (i = 0; i < nb_input_streams; i++) {
2673         ist = &input_streams[i];
2674         if (ist->decoding_needed) {
2675             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2676         }
2677     }
2678
2679     term_exit();
2680
2681     /* write the trailer if needed and close file */
2682     for(i=0;i<nb_output_files;i++) {
2683         os = output_files[i];
2684         av_write_trailer(os);
2685     }
2686
2687     /* dump report by using the first video and audio streams */
2688     print_report(output_files, ost_table, nb_ostreams, 1);
2689
2690     /* close each encoder */
2691     for(i=0;i<nb_ostreams;i++) {
2692         ost = ost_table[i];
2693         if (ost->encoding_needed) {
2694             av_freep(&ost->st->codec->stats_in);
2695             avcodec_close(ost->st->codec);
2696         }
2697 #if CONFIG_AVFILTER
2698         avfilter_graph_free(&ost->graph);
2699 #endif
2700     }
2701
2702     /* close each decoder */
2703     for (i = 0; i < nb_input_streams; i++) {
2704         ist = &input_streams[i];
2705         if (ist->decoding_needed) {
2706             avcodec_close(ist->st->codec);
2707         }
2708     }
2709
2710     /* finished ! */
2711     ret = 0;
2712
2713  fail:
2714     av_freep(&bit_buffer);
2715
2716     if (ost_table) {
2717         for(i=0;i<nb_ostreams;i++) {
2718             ost = ost_table[i];
2719             if (ost) {
2720                 if (ost->st->stream_copy)
2721                     av_freep(&ost->st->codec->extradata);
2722                 if (ost->logfile) {
2723                     fclose(ost->logfile);
2724                     ost->logfile = NULL;
2725                 }
2726                 av_fifo_free(ost->fifo); /* works even if fifo is not
2727                                              initialized but set to zero */
2728                 av_freep(&ost->st->codec->subtitle_header);
2729                 av_free(ost->pict_tmp.data[0]);
2730                 av_free(ost->forced_kf_pts);
2731                 if (ost->video_resample)
2732                     sws_freeContext(ost->img_resample_ctx);
2733                 if (ost->resample)
2734                     audio_resample_close(ost->resample);
2735                 if (ost->reformat_ctx)
2736                     av_audio_convert_free(ost->reformat_ctx);
2737                 av_free(ost);
2738             }
2739         }
2740         av_free(ost_table);
2741     }
2742     return ret;
2743 }
2744
2745 static int opt_format(const char *opt, const char *arg)
2746 {
2747     last_asked_format = arg;
2748     return 0;
2749 }
2750
2751 static int opt_video_rc_override_string(const char *opt, const char *arg)
2752 {
2753     video_rc_override_string = arg;
2754     return 0;
2755 }
2756
2757 static int opt_me_threshold(const char *opt, const char *arg)
2758 {
2759     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2760     return 0;
2761 }
2762
2763 static int opt_verbose(const char *opt, const char *arg)
2764 {
2765     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2766     return 0;
2767 }
2768
2769 static int opt_frame_rate(const char *opt, const char *arg)
2770 {
2771     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2772         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2773         ffmpeg_exit(1);
2774     }
2775     return 0;
2776 }
2777
2778 static int opt_bitrate(const char *opt, const char *arg)
2779 {
2780     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2781
2782     opt_default(opt, arg);
2783
2784     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2785         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2786
2787     return 0;
2788 }
2789
2790 static int opt_frame_crop(const char *opt, const char *arg)
2791 {
2792     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2793     return AVERROR(EINVAL);
2794 }
2795
2796 static int opt_frame_size(const char *opt, const char *arg)
2797 {
2798     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2799         fprintf(stderr, "Incorrect frame size\n");
2800         return AVERROR(EINVAL);
2801     }
2802     return 0;
2803 }
2804
2805 static int opt_pad(const char *opt, const char *arg) {
2806     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2807     return -1;
2808 }
2809
2810 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2811 {
2812     if (strcmp(arg, "list")) {
2813         frame_pix_fmt = av_get_pix_fmt(arg);
2814         if (frame_pix_fmt == PIX_FMT_NONE) {
2815             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2816             return AVERROR(EINVAL);
2817         }
2818     } else {
2819         show_pix_fmts();
2820         ffmpeg_exit(0);
2821     }
2822     return 0;
2823 }
2824
2825 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2826 {
2827     int x = 0, y = 0;
2828     double ar = 0;
2829     const char *p;
2830     char *end;
2831
2832     p = strchr(arg, ':');
2833     if (p) {
2834         x = strtol(arg, &end, 10);
2835         if (end == p)
2836             y = strtol(end+1, &end, 10);
2837         if (x > 0 && y > 0)
2838             ar = (double)x / (double)y;
2839     } else
2840         ar = strtod(arg, NULL);
2841
2842     if (!ar) {
2843         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2844         return AVERROR(EINVAL);
2845     }
2846     frame_aspect_ratio = ar;
2847     return 0;
2848 }
2849
2850 static int opt_metadata(const char *opt, const char *arg)
2851 {
2852     char *mid= strchr(arg, '=');
2853
2854     if(!mid){
2855         fprintf(stderr, "Missing =\n");
2856         ffmpeg_exit(1);
2857     }
2858     *mid++= 0;
2859
2860     av_dict_set(&metadata, arg, mid, 0);
2861
2862     return 0;
2863 }
2864
2865 static int opt_qscale(const char *opt, const char *arg)
2866 {
2867     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2868     if (video_qscale == 0) {
2869         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2870         return AVERROR(EINVAL);
2871     }
2872     return 0;
2873 }
2874
2875 static int opt_top_field_first(const char *opt, const char *arg)
2876 {
2877     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2878     return 0;
2879 }
2880
2881 static int opt_thread_count(const char *opt, const char *arg)
2882 {
2883     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2884 #if !HAVE_THREADS
2885     if (verbose >= 0)
2886         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2887 #endif
2888     return 0;
2889 }
2890
2891 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2892 {
2893     if (strcmp(arg, "list")) {
2894         audio_sample_fmt = av_get_sample_fmt(arg);
2895         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2896             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2897             return AVERROR(EINVAL);
2898         }
2899     } else {
2900         int i;
2901         char fmt_str[128];
2902         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2903             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2904         ffmpeg_exit(0);
2905     }
2906     return 0;
2907 }
2908
2909 static int opt_audio_rate(const char *opt, const char *arg)
2910 {
2911     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2912     return 0;
2913 }
2914
2915 static int opt_audio_channels(const char *opt, const char *arg)
2916 {
2917     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2918     return 0;
2919 }
2920
2921 static int opt_video_channel(const char *opt, const char *arg)
2922 {
2923     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2924     opt_default("channel", arg);
2925     return 0;
2926 }
2927
2928 static int opt_video_standard(const char *opt, const char *arg)
2929 {
2930     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2931     opt_default("standard", arg);
2932     return 0;
2933 }
2934
2935 static int opt_codec(int *pstream_copy, char **pcodec_name,
2936                       int codec_type, const char *arg)
2937 {
2938     av_freep(pcodec_name);
2939     if (!strcmp(arg, "copy")) {
2940         *pstream_copy = 1;
2941     } else {
2942         *pcodec_name = av_strdup(arg);
2943     }
2944     return 0;
2945 }
2946
2947 static int opt_audio_codec(const char *opt, const char *arg)
2948 {
2949     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2950 }
2951
2952 static int opt_video_codec(const char *opt, const char *arg)
2953 {
2954     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2955 }
2956
2957 static int opt_subtitle_codec(const char *opt, const char *arg)
2958 {
2959     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2960 }
2961
2962 static int opt_data_codec(const char *opt, const char *arg)
2963 {
2964     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2965 }
2966
2967 static int opt_codec_tag(const char *opt, const char *arg)
2968 {
2969     char *tail;
2970     uint32_t *codec_tag;
2971
2972     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2973                 !strcmp(opt, "vtag") ? &video_codec_tag :
2974                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2975     if (!codec_tag)
2976         return -1;
2977
2978     *codec_tag = strtol(arg, &tail, 0);
2979     if (!tail || *tail)
2980         *codec_tag = AV_RL32(arg);
2981
2982     return 0;
2983 }
2984
2985 static int opt_map(const char *opt, const char *arg)
2986 {
2987     StreamMap *m;
2988     char *p;
2989
2990     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2991     m = &stream_maps[nb_stream_maps-1];
2992
2993     m->file_index = strtol(arg, &p, 0);
2994     if (*p)
2995         p++;
2996
2997     m->stream_index = strtol(p, &p, 0);
2998     if (*p) {
2999         p++;
3000         m->sync_file_index = strtol(p, &p, 0);
3001         if (*p)
3002             p++;
3003         m->sync_stream_index = strtol(p, &p, 0);
3004     } else {
3005         m->sync_file_index = m->file_index;
3006         m->sync_stream_index = m->stream_index;
3007     }
3008     return 0;
3009 }
3010
3011 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3012 {
3013     *endptr = arg;
3014     if (*arg == ',') {
3015         *type = *(++arg);
3016         switch (*arg) {
3017         case 'g':
3018             break;
3019         case 's':
3020         case 'c':
3021         case 'p':
3022             *index = strtol(++arg, endptr, 0);
3023             break;
3024         default:
3025             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3026             ffmpeg_exit(1);
3027         }
3028     } else
3029         *type = 'g';
3030 }
3031
3032 static int opt_map_metadata(const char *opt, const char *arg)
3033 {
3034     MetadataMap *m, *m1;
3035     char *p;
3036
3037     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3038                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3039
3040     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3041     m->file = strtol(arg, &p, 0);
3042     parse_meta_type(p, &m->type, &m->index, &p);
3043     if (*p)
3044         p++;
3045
3046     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3047     m1->file = strtol(p, &p, 0);
3048     parse_meta_type(p, &m1->type, &m1->index, &p);
3049
3050     if (m->type == 'g' || m1->type == 'g')
3051         metadata_global_autocopy = 0;
3052     if (m->type == 's' || m1->type == 's')
3053         metadata_streams_autocopy = 0;
3054     if (m->type == 'c' || m1->type == 'c')
3055         metadata_chapters_autocopy = 0;
3056
3057     return 0;
3058 }
3059
3060 static int opt_map_meta_data(const char *opt, const char *arg)
3061 {
3062     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3063                     "Use -map_metadata instead.\n");
3064     return opt_map_metadata(opt, arg);
3065 }
3066
3067 static int opt_map_chapters(const char *opt, const char *arg)
3068 {
3069     ChapterMap *c;
3070     char *p;
3071
3072     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3073                               nb_chapter_maps + 1);
3074     c = &chapter_maps[nb_chapter_maps - 1];
3075     c->out_file = strtol(arg, &p, 0);
3076     if (*p)
3077         p++;
3078
3079     c->in_file = strtol(p, &p, 0);
3080     return 0;
3081 }
3082
3083 static int opt_input_ts_scale(const char *opt, const char *arg)
3084 {
3085     unsigned int stream;
3086     double scale;
3087     char *p;
3088
3089     stream = strtol(arg, &p, 0);
3090     if (*p)
3091         p++;
3092     scale= strtod(p, &p);
3093
3094     if(stream >= MAX_STREAMS)
3095         ffmpeg_exit(1);
3096
3097     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);
3098     input_files_ts_scale[nb_input_files][stream]= scale;
3099     return 0;
3100 }
3101
3102 static int opt_recording_time(const char *opt, const char *arg)
3103 {
3104     recording_time = parse_time_or_die(opt, arg, 1);
3105     return 0;
3106 }
3107
3108 static int opt_start_time(const char *opt, const char *arg)
3109 {
3110     start_time = parse_time_or_die(opt, arg, 1);
3111     return 0;
3112 }
3113
3114 static int opt_recording_timestamp(const char *opt, const char *arg)
3115 {
3116     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3117     return 0;
3118 }
3119
3120 static int opt_input_ts_offset(const char *opt, const char *arg)
3121 {
3122     input_ts_offset = parse_time_or_die(opt, arg, 1);
3123     return 0;
3124 }
3125
3126 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3127 {
3128     const char *codec_string = encoder ? "encoder" : "decoder";
3129     AVCodec *codec;
3130
3131     if(!name)
3132         return CODEC_ID_NONE;
3133     codec = encoder ?
3134         avcodec_find_encoder_by_name(name) :
3135         avcodec_find_decoder_by_name(name);
3136     if(!codec) {
3137         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3138         ffmpeg_exit(1);
3139     }
3140     if(codec->type != type) {
3141         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3142         ffmpeg_exit(1);
3143     }
3144     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3145        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3146         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3147                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3148                 codec_string, codec->name);
3149         codec = encoder ?
3150             avcodec_find_encoder(codec->id) :
3151             avcodec_find_decoder(codec->id);
3152         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3153             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3154                     codec_string, codec->name);
3155         ffmpeg_exit(1);
3156     }
3157     return codec->id;
3158 }
3159
3160 static int opt_input_file(const char *opt, const char *filename)
3161 {
3162     AVFormatContext *ic;
3163     AVInputFormat *file_iformat = NULL;
3164     int err, i, ret, rfps, rfps_base;
3165     int64_t timestamp;
3166     uint8_t buf[128];
3167
3168     if (last_asked_format) {
3169         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3170             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3171             ffmpeg_exit(1);
3172         }
3173         last_asked_format = NULL;
3174     }
3175
3176     if (!strcmp(filename, "-"))
3177         filename = "pipe:";
3178
3179     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3180                     !strcmp(filename, "/dev/stdin");
3181
3182     /* get default parameters from command line */
3183     ic = avformat_alloc_context();
3184     if (!ic) {
3185         print_error(filename, AVERROR(ENOMEM));
3186         ffmpeg_exit(1);
3187     }
3188     if (audio_sample_rate) {
3189         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3190         av_dict_set(&format_opts, "sample_rate", buf, 0);
3191     }
3192     if (audio_channels) {
3193         snprintf(buf, sizeof(buf), "%d", audio_channels);
3194         av_dict_set(&format_opts, "channels", buf, 0);
3195     }
3196     if (frame_rate.num) {
3197         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3198         av_dict_set(&format_opts, "framerate", buf, 0);
3199     }
3200     if (frame_width && frame_height) {
3201         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3202         av_dict_set(&format_opts, "video_size", buf, 0);
3203     }
3204     if (frame_pix_fmt != PIX_FMT_NONE)
3205         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3206
3207     ic->video_codec_id   =
3208         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3209                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3210     ic->audio_codec_id   =
3211         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3212                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3213     ic->subtitle_codec_id=
3214         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3215                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3216     ic->flags |= AVFMT_FLAG_NONBLOCK;
3217
3218     /* open the input file with generic libav function */
3219     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3220     if (err < 0) {
3221         print_error(filename, err);
3222         ffmpeg_exit(1);
3223     }
3224     assert_avoptions(format_opts);
3225
3226     if(opt_programid) {
3227         int i, j;
3228         int found=0;
3229         for(i=0; i<ic->nb_streams; i++){
3230             ic->streams[i]->discard= AVDISCARD_ALL;
3231         }
3232         for(i=0; i<ic->nb_programs; i++){
3233             AVProgram *p= ic->programs[i];
3234             if(p->id != opt_programid){
3235                 p->discard = AVDISCARD_ALL;
3236             }else{
3237                 found=1;
3238                 for(j=0; j<p->nb_stream_indexes; j++){
3239                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3240                 }
3241             }
3242         }
3243         if(!found){
3244             fprintf(stderr, "Specified program id not found\n");
3245             ffmpeg_exit(1);
3246         }
3247         opt_programid=0;
3248     }
3249
3250     if (loop_input) {
3251         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3252         ic->loop_input = loop_input;
3253     }
3254
3255     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3256     for (i = 0; i < ic->nb_streams; i++) {
3257         AVCodecContext *dec = ic->streams[i]->codec;
3258         switch (dec->codec_type) {
3259         case AVMEDIA_TYPE_AUDIO:
3260             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3261                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3262                              NULL);
3263             break;
3264         case AVMEDIA_TYPE_VIDEO:
3265             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3266                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3267                              NULL);
3268             break;
3269         }
3270     }
3271
3272     /* If not enough info to get the stream parameters, we decode the
3273        first frames to get it. (used in mpeg case for example) */
3274     ret = av_find_stream_info(ic);
3275     if (ret < 0 && verbose >= 0) {
3276         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3277         av_close_input_file(ic);
3278         ffmpeg_exit(1);
3279     }
3280
3281     timestamp = start_time;
3282     /* add the stream start time */
3283     if (ic->start_time != AV_NOPTS_VALUE)
3284         timestamp += ic->start_time;
3285
3286     /* if seeking requested, we execute it */
3287     if (start_time != 0) {
3288         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3289         if (ret < 0) {
3290             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3291                     filename, (double)timestamp / AV_TIME_BASE);
3292         }
3293         /* reset seek info */
3294         start_time = 0;
3295     }
3296
3297     /* update the current parameters so that they match the one of the input stream */
3298     for(i=0;i<ic->nb_streams;i++) {
3299         AVStream *st = ic->streams[i];
3300         AVCodecContext *dec = st->codec;
3301         InputStream *ist;
3302
3303         dec->thread_count = thread_count;
3304         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3305
3306         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3307         ist = &input_streams[nb_input_streams - 1];
3308         ist->st = st;
3309         ist->file_index = nb_input_files;
3310         ist->discard = 1;
3311
3312         switch (dec->codec_type) {
3313         case AVMEDIA_TYPE_AUDIO:
3314             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3315             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]);
3316             channel_layout    = dec->channel_layout;
3317             audio_sample_fmt  = dec->sample_fmt;
3318             if(audio_disable)
3319                 st->discard= AVDISCARD_ALL;
3320             break;
3321         case AVMEDIA_TYPE_VIDEO:
3322             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3323             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]);
3324             rfps      = ic->streams[i]->r_frame_rate.num;
3325             rfps_base = ic->streams[i]->r_frame_rate.den;
3326             if (dec->lowres) {
3327                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3328                 dec->height >>= dec->lowres;
3329                 dec->width  >>= dec->lowres;
3330             }
3331             if(me_threshold)
3332                 dec->debug |= FF_DEBUG_MV;
3333
3334             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3335
3336                 if (verbose >= 0)
3337                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3338                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3339
3340                     (float)rfps / rfps_base, rfps, rfps_base);
3341             }
3342
3343             if(video_disable)
3344                 st->discard= AVDISCARD_ALL;
3345             else if(video_discard)
3346                 st->discard= video_discard;
3347             break;
3348         case AVMEDIA_TYPE_DATA:
3349             break;
3350         case AVMEDIA_TYPE_SUBTITLE:
3351             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3352             if(subtitle_disable)
3353                 st->discard = AVDISCARD_ALL;
3354             break;
3355         case AVMEDIA_TYPE_ATTACHMENT:
3356         case AVMEDIA_TYPE_UNKNOWN:
3357             break;
3358         default:
3359             abort();
3360         }
3361     }
3362
3363     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3364     /* dump the file content */
3365     if (verbose >= 0)
3366         av_dump_format(ic, nb_input_files, filename, 0);
3367
3368     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3369     input_files[nb_input_files - 1].ctx        = ic;
3370     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3371
3372     frame_rate    = (AVRational){0, 0};
3373     frame_pix_fmt = PIX_FMT_NONE;
3374     frame_height = 0;
3375     frame_width  = 0;
3376     audio_sample_rate = 0;
3377     audio_channels    = 0;
3378
3379     av_freep(&video_codec_name);
3380     av_freep(&audio_codec_name);
3381     av_freep(&subtitle_codec_name);
3382     uninit_opts();
3383     init_opts();
3384     return 0;
3385 }
3386
3387 static void check_inputs(int *has_video_ptr,
3388                          int *has_audio_ptr,
3389                          int *has_subtitle_ptr,
3390                          int *has_data_ptr)
3391 {
3392     int has_video, has_audio, has_subtitle, has_data, i, j;
3393     AVFormatContext *ic;
3394
3395     has_video = 0;
3396     has_audio = 0;
3397     has_subtitle = 0;
3398     has_data = 0;
3399
3400     for(j=0;j<nb_input_files;j++) {
3401         ic = input_files[j].ctx;
3402         for(i=0;i<ic->nb_streams;i++) {
3403             AVCodecContext *enc = ic->streams[i]->codec;
3404             switch(enc->codec_type) {
3405             case AVMEDIA_TYPE_AUDIO:
3406                 has_audio = 1;
3407                 break;
3408             case AVMEDIA_TYPE_VIDEO:
3409                 has_video = 1;
3410                 break;
3411             case AVMEDIA_TYPE_SUBTITLE:
3412                 has_subtitle = 1;
3413                 break;
3414             case AVMEDIA_TYPE_DATA:
3415             case AVMEDIA_TYPE_ATTACHMENT:
3416             case AVMEDIA_TYPE_UNKNOWN:
3417                 has_data = 1;
3418                 break;
3419             default:
3420                 abort();
3421             }
3422         }
3423     }
3424     *has_video_ptr = has_video;
3425     *has_audio_ptr = has_audio;
3426     *has_subtitle_ptr = has_subtitle;
3427     *has_data_ptr = has_data;
3428 }
3429
3430 static void new_video_stream(AVFormatContext *oc, int file_idx)
3431 {
3432     AVStream *st;
3433     OutputStream *ost;
3434     AVCodecContext *video_enc;
3435     enum CodecID codec_id = CODEC_ID_NONE;
3436     AVCodec *codec= NULL;
3437
3438     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3439     if (!st) {
3440         fprintf(stderr, "Could not alloc stream\n");
3441         ffmpeg_exit(1);
3442     }
3443     ost = new_output_stream(oc, file_idx);
3444
3445     if(!video_stream_copy){
3446         if (video_codec_name) {
3447             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3448                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3449             codec = avcodec_find_encoder_by_name(video_codec_name);
3450             ost->enc = codec;
3451         } else {
3452             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3453             codec = avcodec_find_encoder(codec_id);
3454         }
3455
3456         ost->frame_aspect_ratio = frame_aspect_ratio;
3457         frame_aspect_ratio = 0;
3458 #if CONFIG_AVFILTER
3459         ost->avfilter= vfilters;
3460         vfilters = NULL;
3461 #endif
3462     }
3463
3464     avcodec_get_context_defaults3(st->codec, codec);
3465     ost->bitstream_filters = video_bitstream_filters;
3466     video_bitstream_filters= NULL;
3467
3468     st->codec->thread_count= thread_count;
3469
3470     video_enc = st->codec;
3471
3472     if(video_codec_tag)
3473         video_enc->codec_tag= video_codec_tag;
3474
3475     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3476         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3477         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3478     }
3479
3480     if (video_stream_copy) {
3481         st->stream_copy = 1;
3482         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3483         video_enc->sample_aspect_ratio =
3484         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3485     } else {
3486         const char *p;
3487         int i;
3488
3489         if (frame_rate.num)
3490             ost->frame_rate = frame_rate;
3491         video_enc->codec_id = codec_id;
3492         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3493
3494         video_enc->width = frame_width;
3495         video_enc->height = frame_height;
3496         video_enc->pix_fmt = frame_pix_fmt;
3497         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3498
3499         if (intra_only)
3500             video_enc->gop_size = 0;
3501         if (video_qscale || same_quality) {
3502             video_enc->flags |= CODEC_FLAG_QSCALE;
3503             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3504         }
3505
3506         if(intra_matrix)
3507             video_enc->intra_matrix = intra_matrix;
3508         if(inter_matrix)
3509             video_enc->inter_matrix = inter_matrix;
3510
3511         p= video_rc_override_string;
3512         for(i=0; p; i++){
3513             int start, end, q;
3514             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3515             if(e!=3){
3516                 fprintf(stderr, "error parsing rc_override\n");
3517                 ffmpeg_exit(1);
3518             }
3519             video_enc->rc_override=
3520                 av_realloc(video_enc->rc_override,
3521                            sizeof(RcOverride)*(i+1));
3522             video_enc->rc_override[i].start_frame= start;
3523             video_enc->rc_override[i].end_frame  = end;
3524             if(q>0){
3525                 video_enc->rc_override[i].qscale= q;
3526                 video_enc->rc_override[i].quality_factor= 1.0;
3527             }
3528             else{
3529                 video_enc->rc_override[i].qscale= 0;
3530                 video_enc->rc_override[i].quality_factor= -q/100.0;
3531             }
3532             p= strchr(p, '/');
3533             if(p) p++;
3534         }
3535         video_enc->rc_override_count=i;
3536         if (!video_enc->rc_initial_buffer_occupancy)
3537             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3538         video_enc->me_threshold= me_threshold;
3539         video_enc->intra_dc_precision= intra_dc_precision - 8;
3540
3541         if (do_psnr)
3542             video_enc->flags|= CODEC_FLAG_PSNR;
3543
3544         /* two pass mode */
3545         if (do_pass) {
3546             if (do_pass == 1) {
3547                 video_enc->flags |= CODEC_FLAG_PASS1;
3548             } else {
3549                 video_enc->flags |= CODEC_FLAG_PASS2;
3550             }
3551         }
3552
3553         if (forced_key_frames)
3554             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3555     }
3556     if (video_language) {
3557         av_dict_set(&st->metadata, "language", video_language, 0);
3558         av_freep(&video_language);
3559     }
3560
3561     /* reset some key parameters */
3562     video_disable = 0;
3563     av_freep(&video_codec_name);
3564     av_freep(&forced_key_frames);
3565     video_stream_copy = 0;
3566     frame_pix_fmt = PIX_FMT_NONE;
3567 }
3568
3569 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3570 {
3571     AVStream *st;
3572     OutputStream *ost;
3573     AVCodec *codec= NULL;
3574     AVCodecContext *audio_enc;
3575     enum CodecID codec_id = CODEC_ID_NONE;
3576
3577     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3578     if (!st) {
3579         fprintf(stderr, "Could not alloc stream\n");
3580         ffmpeg_exit(1);
3581     }
3582     ost = new_output_stream(oc, file_idx);
3583
3584     if(!audio_stream_copy){
3585         if (audio_codec_name) {
3586             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3587                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3588             codec = avcodec_find_encoder_by_name(audio_codec_name);
3589             ost->enc = codec;
3590         } else {
3591             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3592             codec = avcodec_find_encoder(codec_id);
3593         }
3594     }
3595
3596     avcodec_get_context_defaults3(st->codec, codec);
3597
3598     ost->bitstream_filters = audio_bitstream_filters;
3599     audio_bitstream_filters= NULL;
3600
3601     st->codec->thread_count= thread_count;
3602
3603     audio_enc = st->codec;
3604     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3605
3606     if(audio_codec_tag)
3607         audio_enc->codec_tag= audio_codec_tag;
3608
3609     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3610         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3611         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3612     }
3613     if (audio_stream_copy) {
3614         st->stream_copy = 1;
3615     } else {
3616         audio_enc->codec_id = codec_id;
3617         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3618
3619         if (audio_qscale > QSCALE_NONE) {
3620             audio_enc->flags |= CODEC_FLAG_QSCALE;
3621             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3622         }
3623         if (audio_channels)
3624             audio_enc->channels = audio_channels;
3625         audio_enc->sample_fmt = audio_sample_fmt;
3626         if (audio_sample_rate)
3627             audio_enc->sample_rate = audio_sample_rate;
3628         audio_enc->channel_layout = channel_layout;
3629         choose_sample_fmt(st, codec);
3630     }
3631     if (audio_language) {
3632         av_dict_set(&st->metadata, "language", audio_language, 0);
3633         av_freep(&audio_language);
3634     }
3635
3636     /* reset some key parameters */
3637     audio_disable = 0;
3638     av_freep(&audio_codec_name);
3639     audio_stream_copy = 0;
3640 }
3641
3642 static void&