avconv: remove deprecated options.
[ffmpeg.git] / avconv.c
1 /*
2  * avconv main
3  * Copyright (c) 2000-2011 The libav developers.
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int 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 static const OptionDef options[];
98
99 #define MAX_FILES 100
100
101 static const char *last_asked_format = NULL;
102 static double *ts_scale;
103 static int  nb_ts_scale;
104
105 static AVFormatContext *output_files[MAX_FILES];
106 static AVDictionary *output_opts[MAX_FILES];
107 static int nb_output_files = 0;
108
109 static StreamMap *stream_maps = NULL;
110 static int nb_stream_maps;
111
112 /* first item specifies output metadata, second is input */
113 static MetadataMap (*meta_data_maps)[2] = NULL;
114 static int nb_meta_data_maps;
115 static int metadata_global_autocopy   = 1;
116 static int metadata_streams_autocopy  = 1;
117 static int metadata_chapters_autocopy = 1;
118
119 static int chapters_input_file = INT_MAX;
120
121 /* indexed by output file stream index */
122 static int *streamid_map = NULL;
123 static int nb_streamid_map = 0;
124
125 static int frame_width  = 0;
126 static int frame_height = 0;
127 static float frame_aspect_ratio = 0;
128 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
129 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
130 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
131 static AVRational frame_rate;
132 static float video_qscale = 0;
133 static uint16_t *intra_matrix = NULL;
134 static uint16_t *inter_matrix = NULL;
135 static const char *video_rc_override_string=NULL;
136 static int video_disable = 0;
137 static int video_discard = 0;
138 static char *video_codec_name = NULL;
139 static unsigned int video_codec_tag = 0;
140 static char *video_language = NULL;
141 static int same_quality = 0;
142 static int do_deinterlace = 0;
143 static int top_field_first = -1;
144 static int me_threshold = 0;
145 static int intra_dc_precision = 8;
146 static int qp_hist = 0;
147 #if CONFIG_AVFILTER
148 static char *vfilters = NULL;
149 #endif
150
151 static int intra_only = 0;
152 static int audio_sample_rate = 0;
153 #define QSCALE_NONE -99999
154 static float audio_qscale = QSCALE_NONE;
155 static int audio_disable = 0;
156 static int audio_channels = 0;
157 static char  *audio_codec_name = NULL;
158 static unsigned int audio_codec_tag = 0;
159 static char *audio_language = NULL;
160
161 static int subtitle_disable = 0;
162 static char *subtitle_codec_name = NULL;
163 static char *subtitle_language = NULL;
164 static unsigned int subtitle_codec_tag = 0;
165
166 static int data_disable = 0;
167 static char *data_codec_name = NULL;
168 static unsigned int data_codec_tag = 0;
169
170 static float mux_preload= 0.5;
171 static float mux_max_delay= 0.7;
172
173 static int64_t recording_time = INT64_MAX;
174 static int64_t start_time = 0;
175 static int64_t input_ts_offset = 0;
176 static int file_overwrite = 0;
177 static AVDictionary *metadata;
178 static int do_benchmark = 0;
179 static int do_hex_dump = 0;
180 static int do_pkt_dump = 0;
181 static int do_psnr = 0;
182 static int do_pass = 0;
183 static char *pass_logfilename_prefix = NULL;
184 static int audio_stream_copy = 0;
185 static int video_stream_copy = 0;
186 static int subtitle_stream_copy = 0;
187 static int data_stream_copy = 0;
188 static int video_sync_method= -1;
189 static int audio_sync_method= 0;
190 static float audio_drift_threshold= 0.1;
191 static int copy_ts= 0;
192 static int copy_tb;
193 static int opt_shortest = 0;
194 static char *vstats_filename;
195 static FILE *vstats_file;
196 static int opt_programid = 0;
197 static int copy_initial_nonkeyframes = 0;
198
199 static int rate_emu = 0;
200
201 static int audio_volume = 256;
202
203 static int exit_on_error = 0;
204 static int using_stdin = 0;
205 static int verbose = 1;
206 static int thread_count= 1;
207 static int64_t video_size = 0;
208 static int64_t audio_size = 0;
209 static int64_t extra_size = 0;
210 static int nb_frames_dup = 0;
211 static int nb_frames_drop = 0;
212 static int input_sync;
213 static uint64_t limit_filesize = 0;
214 static int force_fps = 0;
215 static char *forced_key_frames = NULL;
216
217 static float dts_delta_threshold = 10;
218
219 static int64_t timer_start;
220
221 static uint8_t *audio_buf;
222 static uint8_t *audio_out;
223 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
224
225 static short *samples;
226
227 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
228 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
230
231 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
232
233 struct InputStream;
234
235 typedef struct OutputStream {
236     int file_index;          /* file index */
237     int index;               /* stream index in the output file */
238     int source_index;        /* InputStream index */
239     AVStream *st;            /* stream in the output file */
240     int encoding_needed;     /* true if encoding needed for this stream */
241     int frame_number;
242     /* input pts and corresponding output pts
243        for A/V sync */
244     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
245     struct InputStream *sync_ist; /* input stream to sync against */
246     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
247     AVBitStreamFilterContext *bitstream_filters;
248     AVCodec *enc;
249
250     /* video only */
251     int video_resample;
252     AVFrame pict_tmp;      /* temporary image for resampling */
253     struct SwsContext *img_resample_ctx; /* for image resampling */
254     int resample_height;
255     int resample_width;
256     int resample_pix_fmt;
257     AVRational frame_rate;
258
259     float frame_aspect_ratio;
260
261     /* forced key frames */
262     int64_t *forced_kf_pts;
263     int forced_kf_count;
264     int forced_kf_index;
265
266     /* audio only */
267     int audio_resample;
268     ReSampleContext *resample; /* for audio resampling */
269     int resample_sample_fmt;
270     int resample_channels;
271     int resample_sample_rate;
272     int reformat_pair;
273     AVAudioConvert *reformat_ctx;
274     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
275     FILE *logfile;
276
277 #if CONFIG_AVFILTER
278     AVFilterContext *output_video_filter;
279     AVFilterContext *input_video_filter;
280     AVFilterBufferRef *picref;
281     char *avfilter;
282     AVFilterGraph *graph;
283 #endif
284
285    int sws_flags;
286    AVDictionary *opts;
287 } OutputStream;
288
289 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
290 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
291
292 typedef struct InputStream {
293     int file_index;
294     AVStream *st;
295     int discard;             /* true if stream data should be discarded */
296     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
297     AVCodec *dec;
298
299     int64_t       start;     /* time when read started */
300     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
301                                 is not defined */
302     int64_t       pts;       /* current pts */
303     PtsCorrectionContext pts_ctx;
304     double ts_scale;
305     int is_start;            /* is 1 at the start and after a discontinuity */
306     int showed_multi_packet_warning;
307     int is_past_recording_time;
308     AVDictionary *opts;
309 } InputStream;
310
311 typedef struct InputFile {
312     AVFormatContext *ctx;
313     int eof_reached;      /* true if eof reached */
314     int ist_index;        /* index of first stream in ist_table */
315     int buffer_size;      /* current total buffer size */
316     int64_t ts_offset;
317 } InputFile;
318
319 static InputStream *input_streams = NULL;
320 static int         nb_input_streams = 0;
321 static InputFile   *input_files   = NULL;
322 static int         nb_input_files   = 0;
323
324 #if CONFIG_AVFILTER
325
326 static int configure_video_filters(InputStream *ist, OutputStream *ost)
327 {
328     AVFilterContext *last_filter, *filter;
329     /** filter graph containing all filters including input & output */
330     AVCodecContext *codec = ost->st->codec;
331     AVCodecContext *icodec = ist->st->codec;
332     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
333     AVRational sample_aspect_ratio;
334     char args[255];
335     int ret;
336
337     ost->graph = avfilter_graph_alloc();
338
339     if (ist->st->sample_aspect_ratio.num){
340         sample_aspect_ratio = ist->st->sample_aspect_ratio;
341     }else
342         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
343
344     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
345              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
346              sample_aspect_ratio.num, sample_aspect_ratio.den);
347
348     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
349                                        "src", args, NULL, ost->graph);
350     if (ret < 0)
351         return ret;
352     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
353                                        "out", NULL, &ffsink_ctx, ost->graph);
354     if (ret < 0)
355         return ret;
356     last_filter = ost->input_video_filter;
357
358     if (codec->width  != icodec->width || codec->height != icodec->height) {
359         snprintf(args, 255, "%d:%d:flags=0x%X",
360                  codec->width,
361                  codec->height,
362                  ost->sws_flags);
363         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
364                                                 NULL, args, NULL, ost->graph)) < 0)
365             return ret;
366         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
367             return ret;
368         last_filter = filter;
369     }
370
371     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
372     ost->graph->scale_sws_opts = av_strdup(args);
373
374     if (ost->avfilter) {
375         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
376         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
377
378         outputs->name    = av_strdup("in");
379         outputs->filter_ctx = last_filter;
380         outputs->pad_idx = 0;
381         outputs->next    = NULL;
382
383         inputs->name    = av_strdup("out");
384         inputs->filter_ctx = ost->output_video_filter;
385         inputs->pad_idx = 0;
386         inputs->next    = NULL;
387
388         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
389             return ret;
390         av_freep(&ost->avfilter);
391     } else {
392         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
393             return ret;
394     }
395
396     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
397         return ret;
398
399     codec->width  = ost->output_video_filter->inputs[0]->w;
400     codec->height = ost->output_video_filter->inputs[0]->h;
401     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
402         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
403         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
404         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
405
406     return 0;
407 }
408 #endif /* CONFIG_AVFILTER */
409
410 static void term_exit(void)
411 {
412     av_log(NULL, AV_LOG_QUIET, "");
413 }
414
415 static volatile int received_sigterm = 0;
416 static volatile int received_nb_signals = 0;
417
418 static void
419 sigterm_handler(int sig)
420 {
421     received_sigterm = sig;
422     received_nb_signals++;
423     term_exit();
424 }
425
426 static void term_init(void)
427 {
428     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
429     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
430 #ifdef SIGXCPU
431     signal(SIGXCPU, sigterm_handler);
432 #endif
433 }
434
435 static int decode_interrupt_cb(void)
436 {
437     return received_nb_signals > 1;
438 }
439
440 static int exit_program(int ret)
441 {
442     int i;
443
444     /* close files */
445     for(i=0;i<nb_output_files;i++) {
446         AVFormatContext *s = output_files[i];
447         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
448             avio_close(s->pb);
449         avformat_free_context(s);
450         av_free(output_streams_for_file[i]);
451         av_dict_free(&output_opts[i]);
452     }
453     for(i=0;i<nb_input_files;i++) {
454         av_close_input_file(input_files[i].ctx);
455     }
456     for (i = 0; i < nb_input_streams; i++)
457         av_dict_free(&input_streams[i].opts);
458
459     av_free(intra_matrix);
460     av_free(inter_matrix);
461
462     if (vstats_file)
463         fclose(vstats_file);
464     av_free(vstats_filename);
465
466     av_free(streamid_map);
467     av_free(stream_maps);
468     av_free(meta_data_maps);
469
470     av_freep(&input_streams);
471     av_freep(&input_files);
472
473     av_free(video_codec_name);
474     av_free(audio_codec_name);
475     av_free(subtitle_codec_name);
476     av_free(data_codec_name);
477
478     uninit_opts();
479     av_free(audio_buf);
480     av_free(audio_out);
481     allocated_audio_buf_size= allocated_audio_out_size= 0;
482     av_free(samples);
483
484 #if CONFIG_AVFILTER
485     avfilter_uninit();
486 #endif
487
488     if (received_sigterm) {
489         fprintf(stderr,
490             "Received signal %d: terminating.\n",
491             (int) received_sigterm);
492         exit (255);
493     }
494
495     exit(ret); /* not all OS-es handle main() return value */
496     return ret;
497 }
498
499 static void assert_avoptions(AVDictionary *m)
500 {
501     AVDictionaryEntry *t;
502     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
503         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
504         exit_program(1);
505     }
506 }
507
508 static void assert_codec_experimental(AVCodecContext *c, int encoder)
509 {
510     const char *codec_string = encoder ? "encoder" : "decoder";
511     AVCodec *codec;
512     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
513         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
514         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
515                 "results.\nAdd '-strict experimental' if you want to use it.\n",
516                 codec_string, c->codec->name);
517         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
518         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
519             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
520                    codec_string, codec->name);
521         exit_program(1);
522     }
523 }
524
525 /* similar to ff_dynarray_add() and av_fast_realloc() */
526 static void *grow_array(void *array, int elem_size, int *size, int new_size)
527 {
528     if (new_size >= INT_MAX / elem_size) {
529         fprintf(stderr, "Array too big.\n");
530         exit_program(1);
531     }
532     if (*size < new_size) {
533         uint8_t *tmp = av_realloc(array, new_size*elem_size);
534         if (!tmp) {
535             fprintf(stderr, "Could not alloc buffer.\n");
536             exit_program(1);
537         }
538         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
539         *size = new_size;
540         return tmp;
541     }
542     return array;
543 }
544
545 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
546 {
547     if(codec && codec->sample_fmts){
548         const enum AVSampleFormat *p= codec->sample_fmts;
549         for(; *p!=-1; p++){
550             if(*p == st->codec->sample_fmt)
551                 break;
552         }
553         if (*p == -1) {
554             av_log(NULL, AV_LOG_WARNING,
555                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
556                    av_get_sample_fmt_name(st->codec->sample_fmt),
557                    codec->name,
558                    av_get_sample_fmt_name(codec->sample_fmts[0]));
559             st->codec->sample_fmt = codec->sample_fmts[0];
560         }
561     }
562 }
563
564 /**
565  * Update the requested input sample format based on the output sample format.
566  * This is currently only used to request float output from decoders which
567  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
568  * Ideally this will be removed in the future when decoders do not do format
569  * conversion and only output in their native format.
570  */
571 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
572                               AVCodecContext *enc)
573 {
574     /* if sample formats match or a decoder sample format has already been
575        requested, just return */
576     if (enc->sample_fmt == dec->sample_fmt ||
577         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
578         return;
579
580     /* if decoder supports more than one output format */
581     if (dec_codec && dec_codec->sample_fmts &&
582         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
583         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
584         const enum AVSampleFormat *p;
585         int min_dec = -1, min_inc = -1;
586
587         /* find a matching sample format in the encoder */
588         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
589             if (*p == enc->sample_fmt) {
590                 dec->request_sample_fmt = *p;
591                 return;
592             } else if (*p > enc->sample_fmt) {
593                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
594             } else
595                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
596         }
597
598         /* if none match, provide the one that matches quality closest */
599         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
600                                   enc->sample_fmt - min_dec;
601     }
602 }
603
604 static void choose_sample_rate(AVStream *st, AVCodec *codec)
605 {
606     if(codec && codec->supported_samplerates){
607         const int *p= codec->supported_samplerates;
608         int best=0;
609         int best_dist=INT_MAX;
610         for(; *p; p++){
611             int dist= abs(st->codec->sample_rate - *p);
612             if(dist < best_dist){
613                 best_dist= dist;
614                 best= *p;
615             }
616         }
617         if(best_dist){
618             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
619         }
620         st->codec->sample_rate= best;
621     }
622 }
623
624 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
625 {
626     if(codec && codec->pix_fmts){
627         const enum PixelFormat *p= codec->pix_fmts;
628         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
629             if(st->codec->codec_id==CODEC_ID_MJPEG){
630                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
631             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
632                 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};
633             }
634         }
635         for(; *p!=-1; p++){
636             if(*p == st->codec->pix_fmt)
637                 break;
638         }
639         if (*p == -1) {
640             if(st->codec->pix_fmt != PIX_FMT_NONE)
641                 av_log(NULL, AV_LOG_WARNING,
642                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
643                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
644                         codec->name,
645                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
646             st->codec->pix_fmt = codec->pix_fmts[0];
647         }
648     }
649 }
650
651 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
652 {
653     OutputStream *ost;
654     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
655     int idx      = oc->nb_streams - 1;
656
657     if (!st) {
658         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
659         exit_program(1);
660     }
661
662     output_streams_for_file[file_idx] =
663         grow_array(output_streams_for_file[file_idx],
664                    sizeof(*output_streams_for_file[file_idx]),
665                    &nb_output_streams_for_file[file_idx],
666                    oc->nb_streams);
667     ost = output_streams_for_file[file_idx][idx] =
668         av_mallocz(sizeof(OutputStream));
669     if (!ost) {
670         fprintf(stderr, "Could not alloc output stream\n");
671         exit_program(1);
672     }
673     ost->file_index = file_idx;
674     ost->index = idx;
675     ost->st    = st;
676     ost->enc   = codec;
677     if (codec)
678         ost->opts  = filter_codec_opts(codec_opts, codec->id, 1);
679
680     avcodec_get_context_defaults3(st->codec, codec);
681
682     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
683     return ost;
684 }
685
686 static int read_avserver_streams(AVFormatContext *s, const char *filename)
687 {
688     int i, err;
689     AVFormatContext *ic = NULL;
690     int nopts = 0;
691
692     err = avformat_open_input(&ic, filename, NULL, NULL);
693     if (err < 0)
694         return err;
695     /* copy stream format */
696     for(i=0;i<ic->nb_streams;i++) {
697         AVStream *st;
698         OutputStream *ost;
699         AVCodec *codec;
700
701         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
702         ost   = new_output_stream(s, nb_output_files, codec);
703         st    = ost->st;
704
705         // FIXME: a more elegant solution is needed
706         memcpy(st, ic->streams[i], sizeof(AVStream));
707         st->info = NULL;
708         avcodec_copy_context(st->codec, ic->streams[i]->codec);
709
710         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
711             if (audio_stream_copy) {
712                 st->stream_copy = 1;
713             } else
714                 choose_sample_fmt(st, codec);
715         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
716             if (video_stream_copy) {
717                 st->stream_copy = 1;
718             } else
719                 choose_pixel_fmt(st, codec);
720         }
721
722         if(st->codec->flags & CODEC_FLAG_BITEXACT)
723             nopts = 1;
724     }
725
726     av_close_input_file(ic);
727     return 0;
728 }
729
730 static double
731 get_sync_ipts(const OutputStream *ost)
732 {
733     const InputStream *ist = ost->sync_ist;
734     return (double)(ist->pts - start_time)/AV_TIME_BASE;
735 }
736
737 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
738     int ret;
739
740     while(bsfc){
741         AVPacket new_pkt= *pkt;
742         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
743                                           &new_pkt.data, &new_pkt.size,
744                                           pkt->data, pkt->size,
745                                           pkt->flags & AV_PKT_FLAG_KEY);
746         if(a>0){
747             av_free_packet(pkt);
748             new_pkt.destruct= av_destruct_packet;
749         } else if(a<0){
750             fprintf(stderr, "%s failed for stream %d, codec %s",
751                     bsfc->filter->name, pkt->stream_index,
752                     avctx->codec ? avctx->codec->name : "copy");
753             print_error("", a);
754             if (exit_on_error)
755                 exit_program(1);
756         }
757         *pkt= new_pkt;
758
759         bsfc= bsfc->next;
760     }
761
762     ret= av_interleaved_write_frame(s, pkt);
763     if(ret < 0){
764         print_error("av_interleaved_write_frame()", ret);
765         exit_program(1);
766     }
767 }
768
769 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
770
771 static void do_audio_out(AVFormatContext *s,
772                          OutputStream *ost,
773                          InputStream *ist,
774                          unsigned char *buf, int size)
775 {
776     uint8_t *buftmp;
777     int64_t audio_out_size, audio_buf_size;
778     int64_t allocated_for_size= size;
779
780     int size_out, frame_bytes, ret, resample_changed;
781     AVCodecContext *enc= ost->st->codec;
782     AVCodecContext *dec= ist->st->codec;
783     int osize = av_get_bytes_per_sample(enc->sample_fmt);
784     int isize = av_get_bytes_per_sample(dec->sample_fmt);
785     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
786
787 need_realloc:
788     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
789     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
790     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
791     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
792     audio_buf_size*= osize*enc->channels;
793
794     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
795     if(coded_bps > 8*osize)
796         audio_out_size= audio_out_size * coded_bps / (8*osize);
797     audio_out_size += FF_MIN_BUFFER_SIZE;
798
799     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
800         fprintf(stderr, "Buffer sizes too large\n");
801         exit_program(1);
802     }
803
804     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
805     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
806     if (!audio_buf || !audio_out){
807         fprintf(stderr, "Out of memory in do_audio_out\n");
808         exit_program(1);
809     }
810
811     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
812         ost->audio_resample = 1;
813
814     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
815                        ost->resample_channels    != dec->channels   ||
816                        ost->resample_sample_rate != dec->sample_rate;
817
818     if ((ost->audio_resample && !ost->resample) || resample_changed) {
819         if (resample_changed) {
820             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",
821                    ist->file_index, ist->st->index,
822                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
823                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
824             ost->resample_sample_fmt  = dec->sample_fmt;
825             ost->resample_channels    = dec->channels;
826             ost->resample_sample_rate = dec->sample_rate;
827             if (ost->resample)
828                 audio_resample_close(ost->resample);
829         }
830         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
831         if (audio_sync_method <= 1 &&
832             ost->resample_sample_fmt  == enc->sample_fmt &&
833             ost->resample_channels    == enc->channels   &&
834             ost->resample_sample_rate == enc->sample_rate) {
835             ost->resample = NULL;
836             ost->audio_resample = 0;
837         } else if (ost->audio_resample) {
838             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
839                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
840             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
841                                                    enc->sample_rate, dec->sample_rate,
842                                                    enc->sample_fmt,  dec->sample_fmt,
843                                                    16, 10, 0, 0.8);
844             if (!ost->resample) {
845                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
846                         dec->channels, dec->sample_rate,
847                         enc->channels, enc->sample_rate);
848                 exit_program(1);
849             }
850         }
851     }
852
853 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
854     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
855         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
856         if (ost->reformat_ctx)
857             av_audio_convert_free(ost->reformat_ctx);
858         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
859                                                    dec->sample_fmt, 1, NULL, 0);
860         if (!ost->reformat_ctx) {
861             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
862                 av_get_sample_fmt_name(dec->sample_fmt),
863                 av_get_sample_fmt_name(enc->sample_fmt));
864             exit_program(1);
865         }
866         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
867     }
868
869     if(audio_sync_method){
870         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
871                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
872         double idelta= delta*dec->sample_rate / enc->sample_rate;
873         int byte_delta= ((int)idelta)*2*dec->channels;
874
875         //FIXME resample delay
876         if(fabs(delta) > 50){
877             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
878                 if(byte_delta < 0){
879                     byte_delta= FFMAX(byte_delta, -size);
880                     size += byte_delta;
881                     buf  -= byte_delta;
882                     if(verbose > 2)
883                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
884                     if(!size)
885                         return;
886                     ist->is_start=0;
887                 }else{
888                     static uint8_t *input_tmp= NULL;
889                     input_tmp= av_realloc(input_tmp, byte_delta + size);
890
891                     if(byte_delta > allocated_for_size - size){
892                         allocated_for_size= byte_delta + (int64_t)size;
893                         goto need_realloc;
894                     }
895                     ist->is_start=0;
896
897                     memset(input_tmp, 0, byte_delta);
898                     memcpy(input_tmp + byte_delta, buf, size);
899                     buf= input_tmp;
900                     size += byte_delta;
901                     if(verbose > 2)
902                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
903                 }
904             }else if(audio_sync_method>1){
905                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
906                 av_assert0(ost->audio_resample);
907                 if(verbose > 2)
908                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
909 //                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));
910                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
911             }
912         }
913     }else
914         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
915                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
916
917     if (ost->audio_resample) {
918         buftmp = audio_buf;
919         size_out = audio_resample(ost->resample,
920                                   (short *)buftmp, (short *)buf,
921                                   size / (dec->channels * isize));
922         size_out = size_out * enc->channels * osize;
923     } else {
924         buftmp = buf;
925         size_out = size;
926     }
927
928     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
929         const void *ibuf[6]= {buftmp};
930         void *obuf[6]= {audio_buf};
931         int istride[6]= {isize};
932         int ostride[6]= {osize};
933         int len= size_out/istride[0];
934         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
935             printf("av_audio_convert() failed\n");
936             if (exit_on_error)
937                 exit_program(1);
938             return;
939         }
940         buftmp = audio_buf;
941         size_out = len*osize;
942     }
943
944     /* now encode as many frames as possible */
945     if (enc->frame_size > 1) {
946         /* output resampled raw samples */
947         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
948             fprintf(stderr, "av_fifo_realloc2() failed\n");
949             exit_program(1);
950         }
951         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
952
953         frame_bytes = enc->frame_size * osize * enc->channels;
954
955         while (av_fifo_size(ost->fifo) >= frame_bytes) {
956             AVPacket pkt;
957             av_init_packet(&pkt);
958
959             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
960
961             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
962
963             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
964                                        (short *)audio_buf);
965             if (ret < 0) {
966                 fprintf(stderr, "Audio encoding failed\n");
967                 exit_program(1);
968             }
969             audio_size += ret;
970             pkt.stream_index= ost->index;
971             pkt.data= audio_out;
972             pkt.size= ret;
973             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
974                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
975             pkt.flags |= AV_PKT_FLAG_KEY;
976             write_frame(s, &pkt, enc, ost->bitstream_filters);
977
978             ost->sync_opts += enc->frame_size;
979         }
980     } else {
981         AVPacket pkt;
982         av_init_packet(&pkt);
983
984         ost->sync_opts += size_out / (osize * enc->channels);
985
986         /* output a pcm frame */
987         /* determine the size of the coded buffer */
988         size_out /= osize;
989         if (coded_bps)
990             size_out = size_out*coded_bps/8;
991
992         if(size_out > audio_out_size){
993             fprintf(stderr, "Internal error, buffer size too small\n");
994             exit_program(1);
995         }
996
997         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
998         ret = avcodec_encode_audio(enc, audio_out, size_out,
999                                    (short *)buftmp);
1000         if (ret < 0) {
1001             fprintf(stderr, "Audio encoding failed\n");
1002             exit_program(1);
1003         }
1004         audio_size += ret;
1005         pkt.stream_index= ost->index;
1006         pkt.data= audio_out;
1007         pkt.size= ret;
1008         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1009             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1010         pkt.flags |= AV_PKT_FLAG_KEY;
1011         write_frame(s, &pkt, enc, ost->bitstream_filters);
1012     }
1013 }
1014
1015 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1016 {
1017     AVCodecContext *dec;
1018     AVPicture *picture2;
1019     AVPicture picture_tmp;
1020     uint8_t *buf = 0;
1021
1022     dec = ist->st->codec;
1023
1024     /* deinterlace : must be done before any resize */
1025     if (do_deinterlace) {
1026         int size;
1027
1028         /* create temporary picture */
1029         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1030         buf = av_malloc(size);
1031         if (!buf)
1032             return;
1033
1034         picture2 = &picture_tmp;
1035         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1036
1037         if(avpicture_deinterlace(picture2, picture,
1038                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1039             /* if error, do not deinterlace */
1040             fprintf(stderr, "Deinterlacing failed\n");
1041             av_free(buf);
1042             buf = NULL;
1043             picture2 = picture;
1044         }
1045     } else {
1046         picture2 = picture;
1047     }
1048
1049     if (picture != picture2)
1050         *picture = *picture2;
1051     *bufp = buf;
1052 }
1053
1054 /* we begin to correct av delay at this threshold */
1055 #define AV_DELAY_MAX 0.100
1056
1057 static void do_subtitle_out(AVFormatContext *s,
1058                             OutputStream *ost,
1059                             InputStream *ist,
1060                             AVSubtitle *sub,
1061                             int64_t pts)
1062 {
1063     static uint8_t *subtitle_out = NULL;
1064     int subtitle_out_max_size = 1024 * 1024;
1065     int subtitle_out_size, nb, i;
1066     AVCodecContext *enc;
1067     AVPacket pkt;
1068
1069     if (pts == AV_NOPTS_VALUE) {
1070         fprintf(stderr, "Subtitle packets must have a pts\n");
1071         if (exit_on_error)
1072             exit_program(1);
1073         return;
1074     }
1075
1076     enc = ost->st->codec;
1077
1078     if (!subtitle_out) {
1079         subtitle_out = av_malloc(subtitle_out_max_size);
1080     }
1081
1082     /* Note: DVB subtitle need one packet to draw them and one other
1083        packet to clear them */
1084     /* XXX: signal it in the codec context ? */
1085     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1086         nb = 2;
1087     else
1088         nb = 1;
1089
1090     for(i = 0; i < nb; i++) {
1091         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1092         // start_display_time is required to be 0
1093         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1094         sub->end_display_time -= sub->start_display_time;
1095         sub->start_display_time = 0;
1096         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1097                                                     subtitle_out_max_size, sub);
1098         if (subtitle_out_size < 0) {
1099             fprintf(stderr, "Subtitle encoding failed\n");
1100             exit_program(1);
1101         }
1102
1103         av_init_packet(&pkt);
1104         pkt.stream_index = ost->index;
1105         pkt.data = subtitle_out;
1106         pkt.size = subtitle_out_size;
1107         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1108         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1109             /* XXX: the pts correction is handled here. Maybe handling
1110                it in the codec would be better */
1111             if (i == 0)
1112                 pkt.pts += 90 * sub->start_display_time;
1113             else
1114                 pkt.pts += 90 * sub->end_display_time;
1115         }
1116         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1117     }
1118 }
1119
1120 static int bit_buffer_size= 1024*256;
1121 static uint8_t *bit_buffer= NULL;
1122
1123 static void do_video_out(AVFormatContext *s,
1124                          OutputStream *ost,
1125                          InputStream *ist,
1126                          AVFrame *in_picture,
1127                          int *frame_size, float quality)
1128 {
1129     int nb_frames, i, ret, resample_changed;
1130     AVFrame *final_picture, *formatted_picture;
1131     AVCodecContext *enc, *dec;
1132     double sync_ipts;
1133
1134     enc = ost->st->codec;
1135     dec = ist->st->codec;
1136
1137     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1138
1139     /* by default, we output a single frame */
1140     nb_frames = 1;
1141
1142     *frame_size = 0;
1143
1144     if(video_sync_method){
1145         double vdelta = sync_ipts - ost->sync_opts;
1146         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1147         if (vdelta < -1.1)
1148             nb_frames = 0;
1149         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1150             if(vdelta<=-0.6){
1151                 nb_frames=0;
1152             }else if(vdelta>0.6)
1153                 ost->sync_opts= lrintf(sync_ipts);
1154         }else if (vdelta > 1.1)
1155             nb_frames = lrintf(vdelta);
1156 //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);
1157         if (nb_frames == 0){
1158             ++nb_frames_drop;
1159             if (verbose>2)
1160                 fprintf(stderr, "*** drop!\n");
1161         }else if (nb_frames > 1) {
1162             nb_frames_dup += nb_frames - 1;
1163             if (verbose>2)
1164                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1165         }
1166     }else
1167         ost->sync_opts= lrintf(sync_ipts);
1168
1169     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1170     if (nb_frames <= 0)
1171         return;
1172
1173     formatted_picture = in_picture;
1174     final_picture = formatted_picture;
1175
1176     resample_changed = ost->resample_width   != dec->width  ||
1177                        ost->resample_height  != dec->height ||
1178                        ost->resample_pix_fmt != dec->pix_fmt;
1179
1180     if (resample_changed) {
1181         av_log(NULL, AV_LOG_INFO,
1182                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1183                ist->file_index, ist->st->index,
1184                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1185                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1186         if(!ost->video_resample)
1187             exit_program(1);
1188     }
1189
1190 #if !CONFIG_AVFILTER
1191     if (ost->video_resample) {
1192         final_picture = &ost->pict_tmp;
1193         if (resample_changed) {
1194             /* initialize a new scaler context */
1195             sws_freeContext(ost->img_resample_ctx);
1196             ost->img_resample_ctx = sws_getContext(
1197                 ist->st->codec->width,
1198                 ist->st->codec->height,
1199                 ist->st->codec->pix_fmt,
1200                 ost->st->codec->width,
1201                 ost->st->codec->height,
1202                 ost->st->codec->pix_fmt,
1203                 ost->sws_flags, NULL, NULL, NULL);
1204             if (ost->img_resample_ctx == NULL) {
1205                 fprintf(stderr, "Cannot get resampling context\n");
1206                 exit_program(1);
1207             }
1208         }
1209         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1210               0, ost->resample_height, final_picture->data, final_picture->linesize);
1211     }
1212 #endif
1213
1214     /* duplicates frame if needed */
1215     for(i=0;i<nb_frames;i++) {
1216         AVPacket pkt;
1217         av_init_packet(&pkt);
1218         pkt.stream_index= ost->index;
1219
1220         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1221             /* raw pictures are written as AVPicture structure to
1222                avoid any copies. We support temorarily the older
1223                method. */
1224             AVFrame* old_frame = enc->coded_frame;
1225             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1226             pkt.data= (uint8_t *)final_picture;
1227             pkt.size=  sizeof(AVPicture);
1228             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1229             pkt.flags |= AV_PKT_FLAG_KEY;
1230
1231             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1232             enc->coded_frame = old_frame;
1233         } else {
1234             AVFrame big_picture;
1235
1236             big_picture= *final_picture;
1237             /* better than nothing: use input picture interlaced
1238                settings */
1239             big_picture.interlaced_frame = in_picture->interlaced_frame;
1240             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1241                 if(top_field_first == -1)
1242                     big_picture.top_field_first = in_picture->top_field_first;
1243                 else
1244                     big_picture.top_field_first = top_field_first;
1245             }
1246
1247             /* handles sameq here. This is not correct because it may
1248                not be a global option */
1249             big_picture.quality = quality;
1250             if(!me_threshold)
1251                 big_picture.pict_type = 0;
1252 //            big_picture.pts = AV_NOPTS_VALUE;
1253             big_picture.pts= ost->sync_opts;
1254 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1255 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1256             if (ost->forced_kf_index < ost->forced_kf_count &&
1257                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1258                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1259                 ost->forced_kf_index++;
1260             }
1261             ret = avcodec_encode_video(enc,
1262                                        bit_buffer, bit_buffer_size,
1263                                        &big_picture);
1264             if (ret < 0) {
1265                 fprintf(stderr, "Video encoding failed\n");
1266                 exit_program(1);
1267             }
1268
1269             if(ret>0){
1270                 pkt.data= bit_buffer;
1271                 pkt.size= ret;
1272                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1273                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1274 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1275    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1276    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1277
1278                 if(enc->coded_frame->key_frame)
1279                     pkt.flags |= AV_PKT_FLAG_KEY;
1280                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1281                 *frame_size = ret;
1282                 video_size += ret;
1283                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1284                 //        enc->frame_number-1, ret, enc->pict_type);
1285                 /* if two pass, output log */
1286                 if (ost->logfile && enc->stats_out) {
1287                     fprintf(ost->logfile, "%s", enc->stats_out);
1288                 }
1289             }
1290         }
1291         ost->sync_opts++;
1292         ost->frame_number++;
1293     }
1294 }
1295
1296 static double psnr(double d){
1297     return -10.0*log(d)/log(10.0);
1298 }
1299
1300 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1301                            int frame_size)
1302 {
1303     AVCodecContext *enc;
1304     int frame_number;
1305     double ti1, bitrate, avg_bitrate;
1306
1307     /* this is executed just the first time do_video_stats is called */
1308     if (!vstats_file) {
1309         vstats_file = fopen(vstats_filename, "w");
1310         if (!vstats_file) {
1311             perror("fopen");
1312             exit_program(1);
1313         }
1314     }
1315
1316     enc = ost->st->codec;
1317     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1318         frame_number = ost->frame_number;
1319         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1320         if (enc->flags&CODEC_FLAG_PSNR)
1321             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1322
1323         fprintf(vstats_file,"f_size= %6d ", frame_size);
1324         /* compute pts value */
1325         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1326         if (ti1 < 0.01)
1327             ti1 = 0.01;
1328
1329         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1330         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1331         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1332             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1333         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1334     }
1335 }
1336
1337 static void print_report(AVFormatContext **output_files,
1338                          OutputStream **ost_table, int nb_ostreams,
1339                          int is_last_report)
1340 {
1341     char buf[1024];
1342     OutputStream *ost;
1343     AVFormatContext *oc;
1344     int64_t total_size;
1345     AVCodecContext *enc;
1346     int frame_number, vid, i;
1347     double bitrate, ti1, pts;
1348     static int64_t last_time = -1;
1349     static int qp_histogram[52];
1350
1351     if (!is_last_report) {
1352         int64_t cur_time;
1353         /* display the report every 0.5 seconds */
1354         cur_time = av_gettime();
1355         if (last_time == -1) {
1356             last_time = cur_time;
1357             return;
1358         }
1359         if ((cur_time - last_time) < 500000)
1360             return;
1361         last_time = cur_time;
1362     }
1363
1364
1365     oc = output_files[0];
1366
1367     total_size = avio_size(oc->pb);
1368     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1369         total_size= avio_tell(oc->pb);
1370
1371     buf[0] = '\0';
1372     ti1 = 1e10;
1373     vid = 0;
1374     for(i=0;i<nb_ostreams;i++) {
1375         float q = -1;
1376         ost = ost_table[i];
1377         enc = ost->st->codec;
1378         if (!ost->st->stream_copy && enc->coded_frame)
1379             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1380         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1381             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1382         }
1383         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1384             float t = (av_gettime()-timer_start) / 1000000.0;
1385
1386             frame_number = ost->frame_number;
1387             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1388                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1389             if(is_last_report)
1390                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1391             if(qp_hist){
1392                 int j;
1393                 int qp = lrintf(q);
1394                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1395                     qp_histogram[qp]++;
1396                 for(j=0; j<32; j++)
1397                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1398             }
1399             if (enc->flags&CODEC_FLAG_PSNR){
1400                 int j;
1401                 double error, error_sum=0;
1402                 double scale, scale_sum=0;
1403                 char type[3]= {'Y','U','V'};
1404                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1405                 for(j=0; j<3; j++){
1406                     if(is_last_report){
1407                         error= enc->error[j];
1408                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1409                     }else{
1410                         error= enc->coded_frame->error[j];
1411                         scale= enc->width*enc->height*255.0*255.0;
1412                     }
1413                     if(j) scale/=4;
1414                     error_sum += error;
1415                     scale_sum += scale;
1416                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1417                 }
1418                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1419             }
1420             vid = 1;
1421         }
1422         /* compute min output value */
1423         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1424         if ((pts < ti1) && (pts > 0))
1425             ti1 = pts;
1426     }
1427     if (ti1 < 0.01)
1428         ti1 = 0.01;
1429
1430     if (verbose > 0 || is_last_report) {
1431         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1432
1433         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1434             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1435             (double)total_size / 1024, ti1, bitrate);
1436
1437         if (nb_frames_dup || nb_frames_drop)
1438           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1439                   nb_frames_dup, nb_frames_drop);
1440
1441         if (verbose >= 0)
1442             fprintf(stderr, "%s    \r", buf);
1443
1444         fflush(stderr);
1445     }
1446
1447     if (is_last_report && verbose >= 0){
1448         int64_t raw= audio_size + video_size + extra_size;
1449         fprintf(stderr, "\n");
1450         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1451                 video_size/1024.0,
1452                 audio_size/1024.0,
1453                 extra_size/1024.0,
1454                 100.0*(total_size - raw)/raw
1455         );
1456     }
1457 }
1458
1459 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1460 {
1461     int fill_char = 0x00;
1462     if (sample_fmt == AV_SAMPLE_FMT_U8)
1463         fill_char = 0x80;
1464     memset(buf, fill_char, size);
1465 }
1466
1467 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1468 static int output_packet(InputStream *ist, int ist_index,
1469                          OutputStream **ost_table, int nb_ostreams,
1470                          const AVPacket *pkt)
1471 {
1472     AVFormatContext *os;
1473     OutputStream *ost;
1474     int ret, i;
1475     int got_output;
1476     AVFrame picture;
1477     void *buffer_to_free = NULL;
1478     static unsigned int samples_size= 0;
1479     AVSubtitle subtitle, *subtitle_to_free;
1480     int64_t pkt_pts = AV_NOPTS_VALUE;
1481 #if CONFIG_AVFILTER
1482     int frame_available;
1483 #endif
1484     float quality;
1485
1486     AVPacket avpkt;
1487     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1488
1489     if(ist->next_pts == AV_NOPTS_VALUE)
1490         ist->next_pts= ist->pts;
1491
1492     if (pkt == NULL) {
1493         /* EOF handling */
1494         av_init_packet(&avpkt);
1495         avpkt.data = NULL;
1496         avpkt.size = 0;
1497         goto handle_eof;
1498     } else {
1499         avpkt = *pkt;
1500     }
1501
1502     if(pkt->dts != AV_NOPTS_VALUE)
1503         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1504     if(pkt->pts != AV_NOPTS_VALUE)
1505         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1506
1507     //while we have more to decode or while the decoder did output something on EOF
1508     while (avpkt.size > 0 || (!pkt && got_output)) {
1509         uint8_t *data_buf, *decoded_data_buf;
1510         int data_size, decoded_data_size;
1511     handle_eof:
1512         ist->pts= ist->next_pts;
1513
1514         if(avpkt.size && avpkt.size != pkt->size &&
1515            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1516             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1517             ist->showed_multi_packet_warning=1;
1518         }
1519
1520         /* decode the packet if needed */
1521         decoded_data_buf = NULL; /* fail safe */
1522         decoded_data_size= 0;
1523         data_buf  = avpkt.data;
1524         data_size = avpkt.size;
1525         subtitle_to_free = NULL;
1526         if (ist->decoding_needed) {
1527             switch(ist->st->codec->codec_type) {
1528             case AVMEDIA_TYPE_AUDIO:{
1529                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1530                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1531                     av_free(samples);
1532                     samples= av_malloc(samples_size);
1533                 }
1534                 decoded_data_size= samples_size;
1535                     /* XXX: could avoid copy if PCM 16 bits with same
1536                        endianness as CPU */
1537                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1538                                             &avpkt);
1539                 if (ret < 0)
1540                     return ret;
1541                 avpkt.data += ret;
1542                 avpkt.size -= ret;
1543                 data_size   = ret;
1544                 got_output  = decoded_data_size > 0;
1545                 /* Some bug in mpeg audio decoder gives */
1546                 /* decoded_data_size < 0, it seems they are overflows */
1547                 if (!got_output) {
1548                     /* no audio frame */
1549                     continue;
1550                 }
1551                 decoded_data_buf = (uint8_t *)samples;
1552                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1553                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1554                 break;}
1555             case AVMEDIA_TYPE_VIDEO:
1556                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1557                     /* XXX: allocate picture correctly */
1558                     avcodec_get_frame_defaults(&picture);
1559                     avpkt.pts = pkt_pts;
1560                     avpkt.dts = ist->pts;
1561                     pkt_pts = AV_NOPTS_VALUE;
1562
1563                     ret = avcodec_decode_video2(ist->st->codec,
1564                                                 &picture, &got_output, &avpkt);
1565                     quality = same_quality ? picture.quality : 0;
1566                     if (ret < 0)
1567                         return ret;
1568                     if (!got_output) {
1569                         /* no picture yet */
1570                         goto discard_packet;
1571                     }
1572                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1573                     if (ist->st->codec->time_base.num != 0) {
1574                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1575                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1576                                           ist->st->codec->time_base.num * ticks) /
1577                             ist->st->codec->time_base.den;
1578                     }
1579                     avpkt.size = 0;
1580                     buffer_to_free = NULL;
1581                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1582                     break;
1583             case AVMEDIA_TYPE_SUBTITLE:
1584                 ret = avcodec_decode_subtitle2(ist->st->codec,
1585                                                &subtitle, &got_output, &avpkt);
1586                 if (ret < 0)
1587                     return ret;
1588                 if (!got_output) {
1589                     goto discard_packet;
1590                 }
1591                 subtitle_to_free = &subtitle;
1592                 avpkt.size = 0;
1593                 break;
1594             default:
1595                 return -1;
1596             }
1597         } else {
1598             switch(ist->st->codec->codec_type) {
1599             case AVMEDIA_TYPE_AUDIO:
1600                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1601                     ist->st->codec->sample_rate;
1602                 break;
1603             case AVMEDIA_TYPE_VIDEO:
1604                 if (ist->st->codec->time_base.num != 0) {
1605                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1606                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1607                                       ist->st->codec->time_base.num * ticks) /
1608                         ist->st->codec->time_base.den;
1609                 }
1610                 break;
1611             }
1612             ret = avpkt.size;
1613             avpkt.size = 0;
1614         }
1615
1616 #if CONFIG_AVFILTER
1617         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1618             for (i = 0; i < nb_ostreams; i++) {
1619                 ost = ost_table[i];
1620                 if (ost->input_video_filter && ost->source_index == ist_index) {
1621                     AVRational sar;
1622                     if (ist->st->sample_aspect_ratio.num)
1623                         sar = ist->st->sample_aspect_ratio;
1624                     else
1625                         sar = ist->st->codec->sample_aspect_ratio;
1626                     // add it to be filtered
1627                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1628                                              ist->pts,
1629                                              sar);
1630                 }
1631             }
1632         }
1633 #endif
1634
1635         // preprocess audio (volume)
1636         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1637             if (audio_volume != 256) {
1638                 short *volp;
1639                 volp = samples;
1640                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1641                     int v = ((*volp) * audio_volume + 128) >> 8;
1642                     if (v < -32768) v = -32768;
1643                     if (v >  32767) v = 32767;
1644                     *volp++ = v;
1645                 }
1646             }
1647         }
1648
1649         /* frame rate emulation */
1650         if (rate_emu) {
1651             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1652             int64_t now = av_gettime() - ist->start;
1653             if (pts > now)
1654                 usleep(pts - now);
1655         }
1656         /* if output time reached then transcode raw format,
1657            encode packets and output them */
1658         if (start_time == 0 || ist->pts >= start_time)
1659             for(i=0;i<nb_ostreams;i++) {
1660                 int frame_size;
1661
1662                 ost = ost_table[i];
1663                 if (ost->source_index == ist_index) {
1664 #if CONFIG_AVFILTER
1665                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1666                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1667                 while (frame_available) {
1668                     AVRational ist_pts_tb;
1669                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1670                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1671                     if (ost->picref)
1672                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1673 #endif
1674                     os = output_files[ost->file_index];
1675
1676                     /* set the input output pts pairs */
1677                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1678
1679                     if (ost->encoding_needed) {
1680                         av_assert0(ist->decoding_needed);
1681                         switch(ost->st->codec->codec_type) {
1682                         case AVMEDIA_TYPE_AUDIO:
1683                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1684                             break;
1685                         case AVMEDIA_TYPE_VIDEO:
1686 #if CONFIG_AVFILTER
1687                             if (ost->picref->video && !ost->frame_aspect_ratio)
1688                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1689 #endif
1690                             do_video_out(os, ost, ist, &picture, &frame_size,
1691                                          same_quality ? quality : ost->st->codec->global_quality);
1692                             if (vstats_filename && frame_size)
1693                                 do_video_stats(os, ost, frame_size);
1694                             break;
1695                         case AVMEDIA_TYPE_SUBTITLE:
1696                             do_subtitle_out(os, ost, ist, &subtitle,
1697                                             pkt->pts);
1698                             break;
1699                         default:
1700                             abort();
1701                         }
1702                     } else {
1703                         AVFrame avframe; //FIXME/XXX remove this
1704                         AVPacket opkt;
1705                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1706
1707                         av_init_packet(&opkt);
1708
1709                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1710 #if !CONFIG_AVFILTER
1711                             continue;
1712 #else
1713                             goto cont;
1714 #endif
1715
1716                         /* no reencoding needed : output the packet directly */
1717                         /* force the input stream PTS */
1718
1719                         avcodec_get_frame_defaults(&avframe);
1720                         ost->st->codec->coded_frame= &avframe;
1721                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1722
1723                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1724                             audio_size += data_size;
1725                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1726                             video_size += data_size;
1727                             ost->sync_opts++;
1728                         }
1729
1730                         opkt.stream_index= ost->index;
1731                         if(pkt->pts != AV_NOPTS_VALUE)
1732                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1733                         else
1734                             opkt.pts= AV_NOPTS_VALUE;
1735
1736                         if (pkt->dts == AV_NOPTS_VALUE)
1737                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1738                         else
1739                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1740                         opkt.dts -= ost_tb_start_time;
1741
1742                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1743                         opkt.flags= pkt->flags;
1744
1745                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1746                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1747                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1748                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1749                            ) {
1750                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1751                                 opkt.destruct= av_destruct_packet;
1752                         } else {
1753                             opkt.data = data_buf;
1754                             opkt.size = data_size;
1755                         }
1756
1757                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1758                         ost->st->codec->frame_number++;
1759                         ost->frame_number++;
1760                         av_free_packet(&opkt);
1761                     }
1762 #if CONFIG_AVFILTER
1763                     cont:
1764                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1765                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1766                     if (ost->picref)
1767                         avfilter_unref_buffer(ost->picref);
1768                 }
1769 #endif
1770                 }
1771             }
1772
1773         av_free(buffer_to_free);
1774         /* XXX: allocate the subtitles in the codec ? */
1775         if (subtitle_to_free) {
1776             avsubtitle_free(subtitle_to_free);
1777             subtitle_to_free = NULL;
1778         }
1779     }
1780  discard_packet:
1781     if (pkt == NULL) {
1782         /* EOF handling */
1783
1784         for(i=0;i<nb_ostreams;i++) {
1785             ost = ost_table[i];
1786             if (ost->source_index == ist_index) {
1787                 AVCodecContext *enc= ost->st->codec;
1788                 os = output_files[ost->file_index];
1789
1790                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1791                     continue;
1792                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1793                     continue;
1794
1795                 if (ost->encoding_needed) {
1796                     for(;;) {
1797                         AVPacket pkt;
1798                         int fifo_bytes;
1799                         av_init_packet(&pkt);
1800                         pkt.stream_index= ost->index;
1801
1802                         switch(ost->st->codec->codec_type) {
1803                         case AVMEDIA_TYPE_AUDIO:
1804                             fifo_bytes = av_fifo_size(ost->fifo);
1805                             ret = 0;
1806                             /* encode any samples remaining in fifo */
1807                             if (fifo_bytes > 0) {
1808                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1809                                 int fs_tmp = enc->frame_size;
1810
1811                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1812                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1813                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1814                                 } else { /* pad */
1815                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1816                                     if (allocated_audio_buf_size < frame_bytes)
1817                                         exit_program(1);
1818                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1819                                 }
1820
1821                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1822                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1823                                                           ost->st->time_base.num, enc->sample_rate);
1824                                 enc->frame_size = fs_tmp;
1825                             }
1826                             if(ret <= 0) {
1827                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1828                             }
1829                             if (ret < 0) {
1830                                 fprintf(stderr, "Audio encoding failed\n");
1831                                 exit_program(1);
1832                             }
1833                             audio_size += ret;
1834                             pkt.flags |= AV_PKT_FLAG_KEY;
1835                             break;
1836                         case AVMEDIA_TYPE_VIDEO:
1837                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1838                             if (ret < 0) {
1839                                 fprintf(stderr, "Video encoding failed\n");
1840                                 exit_program(1);
1841                             }
1842                             video_size += ret;
1843                             if(enc->coded_frame && enc->coded_frame->key_frame)
1844                                 pkt.flags |= AV_PKT_FLAG_KEY;
1845                             if (ost->logfile && enc->stats_out) {
1846                                 fprintf(ost->logfile, "%s", enc->stats_out);
1847                             }
1848                             break;
1849                         default:
1850                             ret=-1;
1851                         }
1852
1853                         if(ret<=0)
1854                             break;
1855                         pkt.data= bit_buffer;
1856                         pkt.size= ret;
1857                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1858                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1859                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1860                     }
1861                 }
1862             }
1863         }
1864     }
1865
1866     return 0;
1867 }
1868
1869 static void print_sdp(AVFormatContext **avc, int n)
1870 {
1871     char sdp[2048];
1872
1873     av_sdp_create(avc, n, sdp, sizeof(sdp));
1874     printf("SDP:\n%s\n", sdp);
1875     fflush(stdout);
1876 }
1877
1878 static int copy_chapters(int infile, int outfile)
1879 {
1880     AVFormatContext *is = input_files[infile].ctx;
1881     AVFormatContext *os = output_files[outfile];
1882     int i;
1883
1884     for (i = 0; i < is->nb_chapters; i++) {
1885         AVChapter *in_ch = is->chapters[i], *out_ch;
1886         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1887                                       AV_TIME_BASE_Q, in_ch->time_base);
1888         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1889                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1890
1891
1892         if (in_ch->end < ts_off)
1893             continue;
1894         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1895             break;
1896
1897         out_ch = av_mallocz(sizeof(AVChapter));
1898         if (!out_ch)
1899             return AVERROR(ENOMEM);
1900
1901         out_ch->id        = in_ch->id;
1902         out_ch->time_base = in_ch->time_base;
1903         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1904         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1905
1906         if (metadata_chapters_autocopy)
1907             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1908
1909         os->nb_chapters++;
1910         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1911         if (!os->chapters)
1912             return AVERROR(ENOMEM);
1913         os->chapters[os->nb_chapters - 1] = out_ch;
1914     }
1915     return 0;
1916 }
1917
1918 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1919                                     AVCodecContext *avctx)
1920 {
1921     char *p;
1922     int n = 1, i;
1923     int64_t t;
1924
1925     for (p = kf; *p; p++)
1926         if (*p == ',')
1927             n++;
1928     ost->forced_kf_count = n;
1929     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1930     if (!ost->forced_kf_pts) {
1931         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1932         exit_program(1);
1933     }
1934     for (i = 0; i < n; i++) {
1935         p = i ? strchr(p, ',') + 1 : kf;
1936         t = parse_time_or_die("force_key_frames", p, 1);
1937         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1938     }
1939 }
1940
1941 /*
1942  * The following code is the main loop of the file converter
1943  */
1944 static int transcode(AVFormatContext **output_files,
1945                      int nb_output_files,
1946                      InputFile *input_files,
1947                      int nb_input_files,
1948                      StreamMap *stream_maps, int nb_stream_maps)
1949 {
1950     int ret = 0, i, j, k, n, nb_ostreams = 0;
1951     AVFormatContext *is, *os;
1952     AVCodecContext *codec, *icodec;
1953     OutputStream *ost, **ost_table = NULL;
1954     InputStream *ist;
1955     char error[1024];
1956     int want_sdp = 1;
1957     uint8_t no_packet[MAX_FILES]={0};
1958     int no_packet_count=0;
1959
1960     if (rate_emu)
1961         for (i = 0; i < nb_input_streams; i++)
1962             input_streams[i].start = av_gettime();
1963
1964     /* output stream init */
1965     nb_ostreams = 0;
1966     for(i=0;i<nb_output_files;i++) {
1967         os = output_files[i];
1968         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1969             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1970             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1971             ret = AVERROR(EINVAL);
1972             goto fail;
1973         }
1974         nb_ostreams += os->nb_streams;
1975     }
1976     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1977         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1978         ret = AVERROR(EINVAL);
1979         goto fail;
1980     }
1981
1982     /* Sanity check the mapping args -- do the input files & streams exist? */
1983     for(i=0;i<nb_stream_maps;i++) {
1984         int fi = stream_maps[i].file_index;
1985         int si = stream_maps[i].stream_index;
1986
1987         if (fi < 0 || fi > nb_input_files - 1 ||
1988             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1989             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1990             ret = AVERROR(EINVAL);
1991             goto fail;
1992         }
1993         fi = stream_maps[i].sync_file_index;
1994         si = stream_maps[i].sync_stream_index;
1995         if (fi < 0 || fi > nb_input_files - 1 ||
1996             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1997             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1998             ret = AVERROR(EINVAL);
1999             goto fail;
2000         }
2001     }
2002
2003     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2004     if (!ost_table)
2005         goto fail;
2006     n = 0;
2007     for(k=0;k<nb_output_files;k++) {
2008         os = output_files[k];
2009         for(i=0;i<os->nb_streams;i++,n++) {
2010             int found;
2011             ost = ost_table[n] = output_streams_for_file[k][i];
2012             if (nb_stream_maps > 0) {
2013                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2014                     stream_maps[n].stream_index;
2015
2016                 /* Sanity check that the stream types match */
2017                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2018                     int i= ost->file_index;
2019                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2020                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2021                         stream_maps[n].file_index, stream_maps[n].stream_index,
2022                         ost->file_index, ost->index);
2023                     exit_program(1);
2024                 }
2025
2026             } else {
2027                 int best_nb_frames=-1;
2028                 /* get corresponding input stream index : we select the first one with the right type */
2029                 found = 0;
2030                 for (j = 0; j < nb_input_streams; j++) {
2031                     int skip=0;
2032                     ist = &input_streams[j];
2033                     if(opt_programid){
2034                         int pi,si;
2035                         AVFormatContext *f = input_files[ist->file_index].ctx;
2036                         skip=1;
2037                         for(pi=0; pi<f->nb_programs; pi++){
2038                             AVProgram *p= f->programs[pi];
2039                             if(p->id == opt_programid)
2040                                 for(si=0; si<p->nb_stream_indexes; si++){
2041                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2042                                         skip=0;
2043                                 }
2044                         }
2045                     }
2046                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2047                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2048                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2049                             best_nb_frames= ist->st->codec_info_nb_frames;
2050                             ost->source_index = j;
2051                             found = 1;
2052                         }
2053                     }
2054                 }
2055
2056                 if (!found) {
2057                     if(! opt_programid) {
2058                         /* try again and reuse existing stream */
2059                         for (j = 0; j < nb_input_streams; j++) {
2060                             ist = &input_streams[j];
2061                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2062                                 && ist->st->discard != AVDISCARD_ALL) {
2063                                 ost->source_index = j;
2064                                 found = 1;
2065                             }
2066                         }
2067                     }
2068                     if (!found) {
2069                         int i= ost->file_index;
2070                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2071                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2072                                 ost->file_index, ost->index);
2073                         exit_program(1);
2074                     }
2075                 }
2076             }
2077             ist = &input_streams[ost->source_index];
2078             ist->discard = 0;
2079             ost->sync_ist = (nb_stream_maps > 0) ?
2080                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2081                          stream_maps[n].sync_stream_index] : ist;
2082         }
2083     }
2084
2085     /* for each output stream, we compute the right encoding parameters */
2086     for(i=0;i<nb_ostreams;i++) {
2087         ost = ost_table[i];
2088         os = output_files[ost->file_index];
2089         ist = &input_streams[ost->source_index];
2090
2091         codec = ost->st->codec;
2092         icodec = ist->st->codec;
2093
2094         if (metadata_streams_autocopy)
2095             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2096                          AV_DICT_DONT_OVERWRITE);
2097
2098         ost->st->disposition = ist->st->disposition;
2099         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2100         codec->chroma_sample_location = icodec->chroma_sample_location;
2101
2102         if (ost->st->stream_copy) {
2103             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2104
2105             if (extra_size > INT_MAX)
2106                 goto fail;
2107
2108             /* if stream_copy is selected, no need to decode or encode */
2109             codec->codec_id = icodec->codec_id;
2110             codec->codec_type = icodec->codec_type;
2111
2112             if(!codec->codec_tag){
2113                 if(   !os->oformat->codec_tag
2114                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2115                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2116                     codec->codec_tag = icodec->codec_tag;
2117             }
2118
2119             codec->bit_rate = icodec->bit_rate;
2120             codec->rc_max_rate    = icodec->rc_max_rate;
2121             codec->rc_buffer_size = icodec->rc_buffer_size;
2122             codec->extradata= av_mallocz(extra_size);
2123             if (!codec->extradata)
2124                 goto fail;
2125             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2126             codec->extradata_size= icodec->extradata_size;
2127             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){
2128                 codec->time_base = icodec->time_base;
2129                 codec->time_base.num *= icodec->ticks_per_frame;
2130                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2131                           codec->time_base.num, codec->time_base.den, INT_MAX);
2132             }else
2133                 codec->time_base = ist->st->time_base;
2134             switch(codec->codec_type) {
2135             case AVMEDIA_TYPE_AUDIO:
2136                 if(audio_volume != 256) {
2137                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2138                     exit_program(1);
2139                 }
2140                 codec->channel_layout = icodec->channel_layout;
2141                 codec->sample_rate = icodec->sample_rate;
2142                 codec->channels = icodec->channels;
2143                 codec->frame_size = icodec->frame_size;
2144                 codec->audio_service_type = icodec->audio_service_type;
2145                 codec->block_align= icodec->block_align;
2146                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2147                     codec->block_align= 0;
2148                 if(codec->codec_id == CODEC_ID_AC3)
2149                     codec->block_align= 0;
2150                 break;
2151             case AVMEDIA_TYPE_VIDEO:
2152                 codec->pix_fmt = icodec->pix_fmt;
2153                 codec->width = icodec->width;
2154                 codec->height = icodec->height;
2155                 codec->has_b_frames = icodec->has_b_frames;
2156                 if (!codec->sample_aspect_ratio.num) {
2157                     codec->sample_aspect_ratio =
2158                     ost->st->sample_aspect_ratio =
2159                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2160                         ist->st->codec->sample_aspect_ratio.num ?
2161                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2162                 }
2163                 break;
2164             case AVMEDIA_TYPE_SUBTITLE:
2165                 codec->width = icodec->width;
2166                 codec->height = icodec->height;
2167                 break;
2168             case AVMEDIA_TYPE_DATA:
2169                 break;
2170             default:
2171                 abort();
2172             }
2173         } else {
2174             if (!ost->enc)
2175                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2176             switch(codec->codec_type) {
2177             case AVMEDIA_TYPE_AUDIO:
2178                 ost->fifo= av_fifo_alloc(1024);
2179                 if(!ost->fifo)
2180                     goto fail;
2181                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2182                 if (!codec->sample_rate) {
2183                     codec->sample_rate = icodec->sample_rate;
2184                     if (icodec->lowres)
2185                         codec->sample_rate >>= icodec->lowres;
2186                 }
2187                 choose_sample_rate(ost->st, ost->enc);
2188                 codec->time_base = (AVRational){1, codec->sample_rate};
2189                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2190                     codec->sample_fmt = icodec->sample_fmt;
2191                 choose_sample_fmt(ost->st, ost->enc);
2192                 if (!codec->channels)
2193                     codec->channels = icodec->channels;
2194                 codec->channel_layout = icodec->channel_layout;
2195                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2196                     codec->channel_layout = 0;
2197                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2198                 icodec->request_channels = codec->channels;
2199                 ist->decoding_needed = 1;
2200                 ost->encoding_needed = 1;
2201                 ost->resample_sample_fmt  = icodec->sample_fmt;
2202                 ost->resample_sample_rate = icodec->sample_rate;
2203                 ost->resample_channels    = icodec->channels;
2204                 break;
2205             case AVMEDIA_TYPE_VIDEO:
2206                 if (codec->pix_fmt == PIX_FMT_NONE)
2207                     codec->pix_fmt = icodec->pix_fmt;
2208                 choose_pixel_fmt(ost->st, ost->enc);
2209
2210                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2211                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2212                     exit_program(1);
2213                 }
2214
2215                 if (!codec->width || !codec->height) {
2216                     codec->width  = icodec->width;
2217                     codec->height = icodec->height;
2218                 }
2219
2220                 ost->video_resample = codec->width   != icodec->width  ||
2221                                       codec->height  != icodec->height ||
2222                                       codec->pix_fmt != icodec->pix_fmt;
2223                 if (ost->video_resample) {
2224 #if !CONFIG_AVFILTER
2225                     avcodec_get_frame_defaults(&ost->pict_tmp);
2226                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2227                                        codec->width, codec->height)) {
2228                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2229                         exit_program(1);
2230                     }
2231                     ost->img_resample_ctx = sws_getContext(
2232                         icodec->width,
2233                         icodec->height,
2234                         icodec->pix_fmt,
2235                         codec->width,
2236                         codec->height,
2237                         codec->pix_fmt,
2238                         ost->sws_flags, NULL, NULL, NULL);
2239                     if (ost->img_resample_ctx == NULL) {
2240                         fprintf(stderr, "Cannot get resampling context\n");
2241                         exit_program(1);
2242                     }
2243 #endif
2244                     codec->bits_per_raw_sample= 0;
2245                 }
2246
2247                 ost->resample_height = icodec->height;
2248                 ost->resample_width  = icodec->width;
2249                 ost->resample_pix_fmt= icodec->pix_fmt;
2250                 ost->encoding_needed = 1;
2251                 ist->decoding_needed = 1;
2252
2253                 if (!ost->frame_rate.num)
2254                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2255                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2256                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2257                     ost->frame_rate = ost->enc->supported_framerates[idx];
2258                 }
2259                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2260
2261 #if CONFIG_AVFILTER
2262                 if (configure_video_filters(ist, ost)) {
2263                     fprintf(stderr, "Error opening filters!\n");
2264                     exit(1);
2265                 }
2266 #endif
2267                 break;
2268             case AVMEDIA_TYPE_SUBTITLE:
2269                 ost->encoding_needed = 1;
2270                 ist->decoding_needed = 1;
2271                 break;
2272             default:
2273                 abort();
2274                 break;
2275             }
2276             /* two pass mode */
2277             if (ost->encoding_needed &&
2278                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2279                 char logfilename[1024];
2280                 FILE *f;
2281
2282                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2283                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2284                          i);
2285                 if (codec->flags & CODEC_FLAG_PASS1) {
2286                     f = fopen(logfilename, "wb");
2287                     if (!f) {
2288                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2289                         exit_program(1);
2290                     }
2291                     ost->logfile = f;
2292                 } else {
2293                     char  *logbuffer;
2294                     size_t logbuffer_size;
2295                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2296                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2297                         exit_program(1);
2298                     }
2299                     codec->stats_in = logbuffer;
2300                 }
2301             }
2302         }
2303         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2304             int size= codec->width * codec->height;
2305             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2306         }
2307     }
2308
2309     if (!bit_buffer)
2310         bit_buffer = av_malloc(bit_buffer_size);
2311     if (!bit_buffer) {
2312         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2313                 bit_buffer_size);
2314         ret = AVERROR(ENOMEM);
2315         goto fail;
2316     }
2317
2318     /* open each encoder */
2319     for(i=0;i<nb_ostreams;i++) {
2320         ost = ost_table[i];
2321         if (ost->encoding_needed) {
2322             AVCodec *codec = ost->enc;
2323             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2324             if (!codec) {
2325                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2326                          ost->st->codec->codec_id, ost->file_index, ost->index);
2327                 ret = AVERROR(EINVAL);
2328                 goto dump_format;
2329             }
2330             if (dec->subtitle_header) {
2331                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2332                 if (!ost->st->codec->subtitle_header) {
2333                     ret = AVERROR(ENOMEM);
2334                     goto dump_format;
2335                 }
2336                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2337                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2338             }
2339             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2340                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2341                         ost->file_index, ost->index);
2342                 ret = AVERROR(EINVAL);
2343                 goto dump_format;
2344             }
2345             assert_codec_experimental(ost->st->codec, 1);
2346             assert_avoptions(ost->opts);
2347             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2348                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2349                                              "It takes bits/s as argument, not kbits/s\n");
2350             extra_size += ost->st->codec->extradata_size;
2351         }
2352     }
2353
2354     /* open each decoder */
2355     for (i = 0; i < nb_input_streams; i++) {
2356         ist = &input_streams[i];
2357         if (ist->decoding_needed) {
2358             AVCodec *codec = ist->dec;
2359             if (!codec)
2360                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2361             if (!codec) {
2362                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2363                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2364                 ret = AVERROR(EINVAL);
2365                 goto dump_format;
2366             }
2367
2368             /* update requested sample format for the decoder based on the
2369                corresponding encoder sample format */
2370             for (j = 0; j < nb_ostreams; j++) {
2371                 ost = ost_table[j];
2372                 if (ost->source_index == i) {
2373                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2374                     break;
2375                 }
2376             }
2377
2378             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2379                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2380                         ist->file_index, ist->st->index);
2381                 ret = AVERROR(EINVAL);
2382                 goto dump_format;
2383             }
2384             assert_codec_experimental(ist->st->codec, 0);
2385             assert_avoptions(ost->opts);
2386             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2387             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2388         }
2389     }
2390
2391     /* init pts */
2392     for (i = 0; i < nb_input_streams; i++) {
2393         AVStream *st;
2394         ist = &input_streams[i];
2395         st= ist->st;
2396         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2397         ist->next_pts = AV_NOPTS_VALUE;
2398         init_pts_correction(&ist->pts_ctx);
2399         ist->is_start = 1;
2400     }
2401
2402     /* set meta data information from input file if required */
2403     for (i=0;i<nb_meta_data_maps;i++) {
2404         AVFormatContext *files[2];
2405         AVDictionary    **meta[2];
2406         int j;
2407
2408 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2409         if ((index) < 0 || (index) >= (nb_elems)) {\
2410             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2411                      (desc), (index));\
2412             ret = AVERROR(EINVAL);\
2413             goto dump_format;\
2414         }
2415
2416         int out_file_index = meta_data_maps[i][0].file;
2417         int in_file_index = meta_data_maps[i][1].file;
2418         if (in_file_index < 0 || out_file_index < 0)
2419             continue;
2420         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2421         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2422
2423         files[0] = output_files[out_file_index];
2424         files[1] = input_files[in_file_index].ctx;
2425
2426         for (j = 0; j < 2; j++) {
2427             MetadataMap *map = &meta_data_maps[i][j];
2428
2429             switch (map->type) {
2430             case 'g':
2431                 meta[j] = &files[j]->metadata;
2432                 break;
2433             case 's':
2434                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2435                 meta[j] = &files[j]->streams[map->index]->metadata;
2436                 break;
2437             case 'c':
2438                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2439                 meta[j] = &files[j]->chapters[map->index]->metadata;
2440                 break;
2441             case 'p':
2442                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2443                 meta[j] = &files[j]->programs[map->index]->metadata;
2444                 break;
2445             }
2446         }
2447
2448         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2449     }
2450
2451     /* copy global metadata by default */
2452     if (metadata_global_autocopy) {
2453
2454         for (i = 0; i < nb_output_files; i++)
2455             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2456                          AV_DICT_DONT_OVERWRITE);
2457     }
2458
2459     /* open files and write file headers */
2460     for(i=0;i<nb_output_files;i++) {
2461         os = output_files[i];
2462         if (avformat_write_header(os, &output_opts[i]) < 0) {
2463             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2464             ret = AVERROR(EINVAL);
2465             goto dump_format;
2466         }
2467         assert_avoptions(output_opts[i]);
2468         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2469             want_sdp = 0;
2470         }
2471     }
2472
2473  dump_format:
2474     /* dump the file output parameters - cannot be done before in case
2475        of stream copy */
2476     for(i=0;i<nb_output_files;i++) {
2477         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2478     }
2479
2480     /* dump the stream mapping */
2481     if (verbose >= 0) {
2482         fprintf(stderr, "Stream mapping:\n");
2483         for(i=0;i<nb_ostreams;i++) {
2484             ost = ost_table[i];
2485             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2486                     input_streams[ost->source_index].file_index,
2487                     input_streams[ost->source_index].st->index,
2488                     ost->file_index,
2489                     ost->index);
2490             if (ost->sync_ist != &input_streams[ost->source_index])
2491                 fprintf(stderr, " [sync #%d.%d]",
2492                         ost->sync_ist->file_index,
2493                         ost->sync_ist->st->index);
2494             fprintf(stderr, "\n");
2495         }
2496     }
2497
2498     if (ret) {
2499         fprintf(stderr, "%s\n", error);
2500         goto fail;
2501     }
2502
2503     if (want_sdp) {
2504         print_sdp(output_files, nb_output_files);
2505     }
2506
2507     if (verbose >= 0)
2508         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2509     term_init();
2510
2511     timer_start = av_gettime();
2512
2513     for(; received_sigterm == 0;) {
2514         int file_index, ist_index;
2515         AVPacket pkt;
2516         double ipts_min;
2517         double opts_min;
2518
2519     redo:
2520         ipts_min= 1e100;
2521         opts_min= 1e100;
2522
2523         /* select the stream that we must read now by looking at the
2524            smallest output pts */
2525         file_index = -1;
2526         for(i=0;i<nb_ostreams;i++) {
2527             double ipts, opts;
2528             ost = ost_table[i];
2529             os = output_files[ost->file_index];
2530             ist = &input_streams[ost->source_index];
2531             if(ist->is_past_recording_time || no_packet[ist->file_index])
2532                 continue;
2533                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2534             ipts = (double)ist->pts;
2535             if (!input_files[ist->file_index].eof_reached){
2536                 if(ipts < ipts_min) {
2537                     ipts_min = ipts;
2538                     if(input_sync ) file_index = ist->file_index;
2539                 }
2540                 if(opts < opts_min) {
2541                     opts_min = opts;
2542                     if(!input_sync) file_index = ist->file_index;
2543                 }
2544             }
2545             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2546                 file_index= -1;
2547                 break;
2548             }
2549         }
2550         /* if none, if is finished */
2551         if (file_index < 0) {
2552             if(no_packet_count){
2553                 no_packet_count=0;
2554                 memset(no_packet, 0, sizeof(no_packet));
2555                 usleep(10000);
2556                 continue;
2557             }
2558             break;
2559         }
2560
2561         /* finish if limit size exhausted */
2562         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2563             break;
2564
2565         /* read a frame from it and output it in the fifo */
2566         is = input_files[file_index].ctx;
2567         ret= av_read_frame(is, &pkt);
2568         if(ret == AVERROR(EAGAIN)){
2569             no_packet[file_index]=1;
2570             no_packet_count++;
2571             continue;
2572         }
2573         if (ret < 0) {
2574             input_files[file_index].eof_reached = 1;
2575             if (opt_shortest)
2576                 break;
2577             else
2578                 continue;
2579         }
2580
2581         no_packet_count=0;
2582         memset(no_packet, 0, sizeof(no_packet));
2583
2584         if (do_pkt_dump) {
2585             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2586                              is->streams[pkt.stream_index]);
2587         }
2588         /* the following test is needed in case new streams appear
2589            dynamically in stream : we ignore them */
2590         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2591             goto discard_packet;
2592         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2593         ist = &input_streams[ist_index];
2594         if (ist->discard)
2595             goto discard_packet;
2596
2597         if (pkt.dts != AV_NOPTS_VALUE)
2598             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2599         if (pkt.pts != AV_NOPTS_VALUE)
2600             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2601
2602         if (ist->ts_scale) {
2603             if(pkt.pts != AV_NOPTS_VALUE)
2604                 pkt.pts *= ist->ts_scale;
2605             if(pkt.dts != AV_NOPTS_VALUE)
2606                 pkt.dts *= ist->ts_scale;
2607         }
2608
2609 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2610         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2611             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2612             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2613             int64_t delta= pkt_dts - ist->next_pts;
2614             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2615                 input_files[ist->file_index].ts_offset -= delta;
2616                 if (verbose > 2)
2617                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2618                             delta, input_files[ist->file_index].ts_offset);
2619                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2620                 if(pkt.pts != AV_NOPTS_VALUE)
2621                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2622             }
2623         }
2624
2625         /* finish if recording time exhausted */
2626         if (recording_time != INT64_MAX &&
2627             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2628             ist->is_past_recording_time = 1;
2629             goto discard_packet;
2630         }
2631
2632         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2633         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2634
2635             if (verbose >= 0)
2636                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2637                         ist->file_index, ist->st->index);
2638             if (exit_on_error)
2639                 exit_program(1);
2640             av_free_packet(&pkt);
2641             goto redo;
2642         }
2643
2644     discard_packet:
2645         av_free_packet(&pkt);
2646
2647         /* dump report by using the output first video and audio streams */
2648         print_report(output_files, ost_table, nb_ostreams, 0);
2649     }
2650
2651     /* at the end of stream, we must flush the decoder buffers */
2652     for (i = 0; i < nb_input_streams; i++) {
2653         ist = &input_streams[i];
2654         if (ist->decoding_needed) {
2655             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2656         }
2657     }
2658
2659     term_exit();
2660
2661     /* write the trailer if needed and close file */
2662     for(i=0;i<nb_output_files;i++) {
2663         os = output_files[i];
2664         av_write_trailer(os);
2665     }
2666
2667     /* dump report by using the first video and audio streams */
2668     print_report(output_files, ost_table, nb_ostreams, 1);
2669
2670     /* close each encoder */
2671     for(i=0;i<nb_ostreams;i++) {
2672         ost = ost_table[i];
2673         if (ost->encoding_needed) {
2674             av_freep(&ost->st->codec->stats_in);
2675             avcodec_close(ost->st->codec);
2676         }
2677 #if CONFIG_AVFILTER
2678         avfilter_graph_free(&ost->graph);
2679 #endif
2680     }
2681
2682     /* close each decoder */
2683     for (i = 0; i < nb_input_streams; i++) {
2684         ist = &input_streams[i];
2685         if (ist->decoding_needed) {
2686             avcodec_close(ist->st->codec);
2687         }
2688     }
2689
2690     /* finished ! */
2691     ret = 0;
2692
2693  fail:
2694     av_freep(&bit_buffer);
2695
2696     if (ost_table) {
2697         for(i=0;i<nb_ostreams;i++) {
2698             ost = ost_table[i];
2699             if (ost) {
2700                 if (ost->st->stream_copy)
2701                     av_freep(&ost->st->codec->extradata);
2702                 if (ost->logfile) {
2703                     fclose(ost->logfile);
2704                     ost->logfile = NULL;
2705                 }
2706                 av_fifo_free(ost->fifo); /* works even if fifo is not
2707                                              initialized but set to zero */
2708                 av_freep(&ost->st->codec->subtitle_header);
2709                 av_free(ost->pict_tmp.data[0]);
2710                 av_free(ost->forced_kf_pts);
2711                 if (ost->video_resample)
2712                     sws_freeContext(ost->img_resample_ctx);
2713                 if (ost->resample)
2714                     audio_resample_close(ost->resample);
2715                 if (ost->reformat_ctx)
2716                     av_audio_convert_free(ost->reformat_ctx);
2717                 av_dict_free(&ost->opts);
2718                 av_free(ost);
2719             }
2720         }
2721         av_free(ost_table);
2722     }
2723     return ret;
2724 }
2725
2726 static int opt_format(const char *opt, const char *arg)
2727 {
2728     last_asked_format = arg;
2729     return 0;
2730 }
2731
2732 static int opt_video_rc_override_string(const char *opt, const char *arg)
2733 {
2734     video_rc_override_string = arg;
2735     return 0;
2736 }
2737
2738 static int opt_me_threshold(const char *opt, const char *arg)
2739 {
2740     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2741     return 0;
2742 }
2743
2744 static int opt_verbose(const char *opt, const char *arg)
2745 {
2746     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2747     return 0;
2748 }
2749
2750 static int opt_frame_rate(const char *opt, const char *arg)
2751 {
2752     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2753         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2754         exit_program(1);
2755     }
2756     return 0;
2757 }
2758
2759 static int opt_frame_crop(const char *opt, const char *arg)
2760 {
2761     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2762     return AVERROR(EINVAL);
2763 }
2764
2765 static int opt_frame_size(const char *opt, const char *arg)
2766 {
2767     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2768         fprintf(stderr, "Incorrect frame size\n");
2769         return AVERROR(EINVAL);
2770     }
2771     return 0;
2772 }
2773
2774 static int opt_pad(const char *opt, const char *arg) {
2775     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2776     return -1;
2777 }
2778
2779 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2780 {
2781     if (strcmp(arg, "list")) {
2782         frame_pix_fmt = av_get_pix_fmt(arg);
2783         if (frame_pix_fmt == PIX_FMT_NONE) {
2784             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2785             return AVERROR(EINVAL);
2786         }
2787     } else {
2788         show_pix_fmts();
2789         exit_program(0);
2790     }
2791     return 0;
2792 }
2793
2794 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2795 {
2796     int x = 0, y = 0;
2797     double ar = 0;
2798     const char *p;
2799     char *end;
2800
2801     p = strchr(arg, ':');
2802     if (p) {
2803         x = strtol(arg, &end, 10);
2804         if (end == p)
2805             y = strtol(end+1, &end, 10);
2806         if (x > 0 && y > 0)
2807             ar = (double)x / (double)y;
2808     } else
2809         ar = strtod(arg, NULL);
2810
2811     if (!ar) {
2812         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2813         return AVERROR(EINVAL);
2814     }
2815     frame_aspect_ratio = ar;
2816     return 0;
2817 }
2818
2819 static int opt_metadata(const char *opt, const char *arg)
2820 {
2821     char *mid= strchr(arg, '=');
2822
2823     if(!mid){
2824         fprintf(stderr, "Missing =\n");
2825         exit_program(1);
2826     }
2827     *mid++= 0;
2828
2829     av_dict_set(&metadata, arg, mid, 0);
2830
2831     return 0;
2832 }
2833
2834 static int opt_qscale(const char *opt, const char *arg)
2835 {
2836     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2837     if (video_qscale == 0) {
2838         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2839         return AVERROR(EINVAL);
2840     }
2841     return 0;
2842 }
2843
2844 static int opt_top_field_first(const char *opt, const char *arg)
2845 {
2846     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2847     return 0;
2848 }
2849
2850 static int opt_thread_count(const char *opt, const char *arg)
2851 {
2852     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2853 #if !HAVE_THREADS
2854     if (verbose >= 0)
2855         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2856 #endif
2857     return 0;
2858 }
2859
2860 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2861 {
2862     if (strcmp(arg, "list")) {
2863         audio_sample_fmt = av_get_sample_fmt(arg);
2864         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2865             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2866             return AVERROR(EINVAL);
2867         }
2868     } else {
2869         int i;
2870         char fmt_str[128];
2871         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2872             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2873         exit_program(0);
2874     }
2875     return 0;
2876 }
2877
2878 static int opt_audio_rate(const char *opt, const char *arg)
2879 {
2880     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2881     return 0;
2882 }
2883
2884 static int opt_audio_channels(const char *opt, const char *arg)
2885 {
2886     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2887     return 0;
2888 }
2889
2890 static int opt_codec(int *pstream_copy, char **pcodec_name,
2891                       int codec_type, const char *arg)
2892 {
2893     av_freep(pcodec_name);
2894     if (!strcmp(arg, "copy")) {
2895         *pstream_copy = 1;
2896     } else {
2897         *pcodec_name = av_strdup(arg);
2898     }
2899     return 0;
2900 }
2901
2902 static int opt_audio_codec(const char *opt, const char *arg)
2903 {
2904     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2905 }
2906
2907 static int opt_video_codec(const char *opt, const char *arg)
2908 {
2909     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2910 }
2911
2912 static int opt_subtitle_codec(const char *opt, const char *arg)
2913 {
2914     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2915 }
2916
2917 static int opt_data_codec(const char *opt, const char *arg)
2918 {
2919     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2920 }
2921
2922 static int opt_codec_tag(const char *opt, const char *arg)
2923 {
2924     char *tail;
2925     uint32_t *codec_tag;
2926
2927     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2928                 !strcmp(opt, "vtag") ? &video_codec_tag :
2929                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2930     if (!codec_tag)
2931         return -1;
2932
2933     *codec_tag = strtol(arg, &tail, 0);
2934     if (!tail || *tail)
2935         *codec_tag = AV_RL32(arg);
2936
2937     return 0;
2938 }
2939
2940 static int opt_map(const char *opt, const char *arg)
2941 {
2942     StreamMap *m;
2943     char *p;
2944
2945     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2946     m = &stream_maps[nb_stream_maps-1];
2947
2948     m->file_index = strtol(arg, &p, 0);
2949     if (*p)
2950         p++;
2951
2952     m->stream_index = strtol(p, &p, 0);
2953     if (*p) {
2954         p++;
2955         m->sync_file_index = strtol(p, &p, 0);
2956         if (*p)
2957             p++;
2958         m->sync_stream_index = strtol(p, &p, 0);
2959     } else {
2960         m->sync_file_index = m->file_index;
2961         m->sync_stream_index = m->stream_index;
2962     }
2963     return 0;
2964 }
2965
2966 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2967 {
2968     *endptr = arg;
2969     if (*arg == ',') {
2970         *type = *(++arg);
2971         switch (*arg) {
2972         case 'g':
2973             break;
2974         case 's':
2975         case 'c':
2976         case 'p':
2977             *index = strtol(++arg, endptr, 0);
2978             break;
2979         default:
2980             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2981             exit_program(1);
2982         }
2983     } else
2984         *type = 'g';
2985 }
2986
2987 static int opt_map_metadata(const char *opt, const char *arg)
2988 {
2989     MetadataMap *m, *m1;
2990     char *p;
2991
2992     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2993                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2994
2995     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2996     m->file = strtol(arg, &p, 0);
2997     parse_meta_type(p, &m->type, &m->index, &p);
2998     if (*p)
2999         p++;
3000
3001     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3002     m1->file = strtol(p, &p, 0);
3003     parse_meta_type(p, &m1->type, &m1->index, &p);
3004
3005     if (m->type == 'g' || m1->type == 'g')
3006         metadata_global_autocopy = 0;
3007     if (m->type == 's' || m1->type == 's')
3008         metadata_streams_autocopy = 0;
3009     if (m->type == 'c' || m1->type == 'c')
3010         metadata_chapters_autocopy = 0;
3011
3012     return 0;
3013 }
3014
3015 static int opt_input_ts_scale(const char *opt, const char *arg)
3016 {
3017     unsigned int stream;
3018     double scale;
3019     char *p;
3020
3021     stream = strtol(arg, &p, 0);
3022     if (*p)
3023         p++;
3024     scale= strtod(p, &p);
3025
3026     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3027     ts_scale[stream] = scale;
3028     return 0;
3029 }
3030
3031 static int opt_recording_time(const char *opt, const char *arg)
3032 {
3033     recording_time = parse_time_or_die(opt, arg, 1);
3034     return 0;
3035 }
3036
3037 static int opt_start_time(const char *opt, const char *arg)
3038 {
3039     start_time = parse_time_or_die(opt, arg, 1);
3040     return 0;
3041 }
3042
3043 static int opt_input_ts_offset(const char *opt, const char *arg)
3044 {
3045     input_ts_offset = parse_time_or_die(opt, arg, 1);
3046     return 0;
3047 }
3048
3049 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3050 {
3051     const char *codec_string = encoder ? "encoder" : "decoder";
3052     AVCodec *codec;
3053
3054     if(!name)
3055         return CODEC_ID_NONE;
3056     codec = encoder ?
3057         avcodec_find_encoder_by_name(name) :
3058         avcodec_find_decoder_by_name(name);
3059     if(!codec) {
3060         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3061         exit_program(1);
3062     }
3063     if(codec->type != type) {
3064         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3065         exit_program(1);
3066     }
3067     return codec->id;
3068 }
3069
3070 static int opt_input_file(const char *opt, const char *filename)
3071 {
3072     AVFormatContext *ic;
3073     AVInputFormat *file_iformat = NULL;
3074     int err, i, ret, rfps, rfps_base;
3075     int64_t timestamp;
3076     uint8_t buf[128];
3077     AVDictionary **opts;
3078     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3079
3080     if (last_asked_format) {
3081         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3082             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3083             exit_program(1);
3084         }
3085         last_asked_format = NULL;
3086     }
3087
3088     if (!strcmp(filename, "-"))
3089         filename = "pipe:";
3090
3091     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3092                     !strcmp(filename, "/dev/stdin");
3093
3094     /* get default parameters from command line */
3095     ic = avformat_alloc_context();
3096     if (!ic) {
3097         print_error(filename, AVERROR(ENOMEM));
3098         exit_program(1);
3099     }
3100     if (audio_sample_rate) {
3101         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3102         av_dict_set(&format_opts, "sample_rate", buf, 0);
3103     }
3104     if (audio_channels) {
3105         snprintf(buf, sizeof(buf), "%d", audio_channels);
3106         av_dict_set(&format_opts, "channels", buf, 0);
3107     }
3108     if (frame_rate.num) {
3109         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3110         av_dict_set(&format_opts, "framerate", buf, 0);
3111     }
3112     if (frame_width && frame_height) {
3113         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3114         av_dict_set(&format_opts, "video_size", buf, 0);
3115     }
3116     if (frame_pix_fmt != PIX_FMT_NONE)
3117         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3118
3119     ic->video_codec_id   =
3120         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
3121     ic->audio_codec_id   =
3122         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
3123     ic->subtitle_codec_id=
3124         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3125     ic->flags |= AVFMT_FLAG_NONBLOCK;
3126
3127     /* open the input file with generic libav function */
3128     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3129     if (err < 0) {
3130         print_error(filename, err);
3131         exit_program(1);
3132     }
3133     assert_avoptions(format_opts);
3134
3135     if(opt_programid) {
3136         int i, j;
3137         int found=0;
3138         for(i=0; i<ic->nb_streams; i++){
3139             ic->streams[i]->discard= AVDISCARD_ALL;
3140         }
3141         for(i=0; i<ic->nb_programs; i++){
3142             AVProgram *p= ic->programs[i];
3143             if(p->id != opt_programid){
3144                 p->discard = AVDISCARD_ALL;
3145             }else{
3146                 found=1;
3147                 for(j=0; j<p->nb_stream_indexes; j++){
3148                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3149                 }
3150             }
3151         }
3152         if(!found){
3153             fprintf(stderr, "Specified program id not found\n");
3154             exit_program(1);
3155         }
3156         opt_programid=0;
3157     }
3158
3159     /* Set AVCodecContext options for avformat_find_stream_info */
3160     opts = setup_find_stream_info_opts(ic, codec_opts);
3161     orig_nb_streams = ic->nb_streams;
3162
3163     /* If not enough info to get the stream parameters, we decode the
3164        first frames to get it. (used in mpeg case for example) */
3165     ret = avformat_find_stream_info(ic, opts);
3166     if (ret < 0 && verbose >= 0) {
3167         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3168         av_close_input_file(ic);
3169         exit_program(1);
3170     }
3171
3172     timestamp = start_time;
3173     /* add the stream start time */
3174     if (ic->start_time != AV_NOPTS_VALUE)
3175         timestamp += ic->start_time;
3176
3177     /* if seeking requested, we execute it */
3178     if (start_time != 0) {
3179         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3180         if (ret < 0) {
3181             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3182                     filename, (double)timestamp / AV_TIME_BASE);
3183         }
3184         /* reset seek info */
3185         start_time = 0;
3186     }
3187
3188     /* update the current parameters so that they match the one of the input stream */
3189     for(i=0;i<ic->nb_streams;i++) {
3190         AVStream *st = ic->streams[i];
3191         AVCodecContext *dec = st->codec;
3192         InputStream *ist;
3193
3194         dec->thread_count = thread_count;
3195
3196         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3197         ist = &input_streams[nb_input_streams - 1];
3198         ist->st = st;
3199         ist->file_index = nb_input_files;
3200         ist->discard = 1;
3201         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, 0);
3202
3203         if (i < nb_ts_scale)
3204             ist->ts_scale = ts_scale[i];
3205
3206         switch (dec->codec_type) {
3207         case AVMEDIA_TYPE_AUDIO:
3208             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3209             if(audio_disable)
3210                 st->discard= AVDISCARD_ALL;
3211             break;
3212         case AVMEDIA_TYPE_VIDEO:
3213             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3214             rfps      = ic->streams[i]->r_frame_rate.num;
3215             rfps_base = ic->streams[i]->r_frame_rate.den;
3216             if (dec->lowres) {
3217                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3218                 dec->height >>= dec->lowres;
3219                 dec->width  >>= dec->lowres;
3220             }
3221             if(me_threshold)
3222                 dec->debug |= FF_DEBUG_MV;
3223
3224             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3225
3226                 if (verbose >= 0)
3227                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3228                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3229
3230                     (float)rfps / rfps_base, rfps, rfps_base);
3231             }
3232
3233             if(video_disable)
3234                 st->discard= AVDISCARD_ALL;
3235             else if(video_discard)
3236                 st->discard= video_discard;
3237             break;
3238         case AVMEDIA_TYPE_DATA:
3239             break;
3240         case AVMEDIA_TYPE_SUBTITLE:
3241             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3242             if(subtitle_disable)
3243                 st->discard = AVDISCARD_ALL;
3244             break;
3245         case AVMEDIA_TYPE_ATTACHMENT:
3246         case AVMEDIA_TYPE_UNKNOWN:
3247             break;
3248         default:
3249             abort();
3250         }
3251     }
3252
3253     /* dump the file content */
3254     if (verbose >= 0)
3255         av_dump_format(ic, nb_input_files, filename, 0);
3256
3257     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3258     input_files[nb_input_files - 1].ctx        = ic;
3259     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3260     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3261
3262     frame_rate    = (AVRational){0, 0};
3263     frame_pix_fmt = PIX_FMT_NONE;
3264     frame_height = 0;
3265     frame_width  = 0;
3266     audio_sample_rate = 0;
3267     audio_channels    = 0;
3268     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3269     av_freep(&ts_scale);
3270     nb_ts_scale = 0;
3271
3272     for (i = 0; i < orig_nb_streams; i++)
3273         av_dict_free(&opts[i]);
3274     av_freep(&opts);
3275     av_freep(&video_codec_name);
3276     av_freep(&audio_codec_name);
3277     av_freep(&subtitle_codec_name);
3278     uninit_opts();
3279     init_opts();
3280     return 0;
3281 }
3282
3283 static void check_inputs(int *has_video_ptr,
3284                          int *has_audio_ptr,
3285                          int *has_subtitle_ptr,
3286                          int *has_data_ptr)
3287 {
3288     int has_video, has_audio, has_subtitle, has_data, i, j;
3289     AVFormatContext *ic;
3290
3291     has_video = 0;
3292     has_audio = 0;
3293     has_subtitle = 0;
3294     has_data = 0;
3295
3296     for(j=0;j<nb_input_files;j++) {
3297         ic = input_files[j].ctx;
3298         for(i=0;i<ic->nb_streams;i++) {
3299             AVCodecContext *enc = ic->streams[i]->codec;
3300             switch(enc->codec_type) {
3301             case AVMEDIA_TYPE_AUDIO:
3302                 has_audio = 1;
3303                 break;
3304             case AVMEDIA_TYPE_VIDEO:
3305                 has_video = 1;
3306                 break;
3307             case AVMEDIA_TYPE_SUBTITLE:
3308                 has_subtitle = 1;
3309                 break;
3310             case AVMEDIA_TYPE_DATA:
3311             case AVMEDIA_TYPE_ATTACHMENT:
3312             case AVMEDIA_TYPE_UNKNOWN:
3313                 has_data = 1;
3314                 break;
3315             default:
3316                 abort();
3317             }
3318         }
3319     }
3320     *has_video_ptr = has_video;
3321     *has_audio_ptr = has_audio;
3322     *has_subtitle_ptr = has_subtitle;
3323     *has_data_ptr = has_data;
3324 }
3325
3326 static void new_video_stream(AVFormatContext *oc, int file_idx)
3327 {
3328     AVStream *st;
3329     OutputStream *ost;
3330     AVCodecContext *video_enc;
3331     enum CodecID codec_id = CODEC_ID_NONE;
3332     AVCodec *codec= NULL;
3333
3334     if(!video_stream_copy){
3335         if (video_codec_name) {
3336             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3337             codec = avcodec_find_encoder_by_name(video_codec_name);
3338         } else {
3339             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3340             codec = avcodec_find_encoder(codec_id);
3341         }
3342     }
3343
3344     ost = new_output_stream(oc, file_idx, codec);
3345     st  = ost->st;
3346     if (!video_stream_copy) {
3347         ost->frame_aspect_ratio = frame_aspect_ratio;
3348         frame_aspect_ratio = 0;
3349 #if CONFIG_AVFILTER
3350         ost->avfilter= vfilters;
3351         vfilters = NULL;
3352 #endif
3353     }
3354
3355     ost->bitstream_filters = video_bitstream_filters;
3356     video_bitstream_filters= NULL;
3357
3358     st->codec->thread_count= thread_count;
3359
3360     video_enc = st->codec;
3361
3362     if(video_codec_tag)
3363         video_enc->codec_tag= video_codec_tag;
3364
3365     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3366         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3367     }
3368
3369     video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3370     if (video_stream_copy) {
3371         st->stream_copy = 1;
3372         video_enc->sample_aspect_ratio =
3373         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3374     } else {
3375         const char *p;
3376         int i;
3377
3378         if (frame_rate.num)
3379             ost->frame_rate = frame_rate;
3380         video_enc->codec_id = codec_id;
3381
3382         video_enc->width = frame_width;
3383         video_enc->height = frame_height;
3384         video_enc->pix_fmt = frame_pix_fmt;
3385         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3386
3387         if (intra_only)
3388             video_enc->gop_size = 0;
3389         if (video_qscale || same_quality) {
3390             video_enc->flags |= CODEC_FLAG_QSCALE;
3391             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3392         }
3393
3394         if(intra_matrix)
3395             video_enc->intra_matrix = intra_matrix;
3396         if(inter_matrix)
3397             video_enc->inter_matrix = inter_matrix;
3398
3399         p= video_rc_override_string;
3400         for(i=0; p; i++){
3401             int start, end, q;
3402             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3403             if(e!=3){
3404                 fprintf(stderr, "error parsing rc_override\n");
3405                 exit_program(1);
3406             }
3407             video_enc->rc_override=
3408                 av_realloc(video_enc->rc_override,
3409                            sizeof(RcOverride)*(i+1));
3410             video_enc->rc_override[i].start_frame= start;
3411             video_enc->rc_override[i].end_frame  = end;
3412             if(q>0){
3413                 video_enc->rc_override[i].qscale= q;
3414                 video_enc->rc_override[i].quality_factor= 1.0;
3415             }
3416             else{
3417                 video_enc->rc_override[i].qscale= 0;
3418                 video_enc->rc_override[i].quality_factor= -q/100.0;
3419             }
3420             p= strchr(p, '/');
3421             if(p) p++;
3422         }
3423         video_enc->rc_override_count=i;
3424         if (!video_enc->rc_initial_buffer_occupancy)
3425             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3426         video_enc->me_threshold= me_threshold;
3427         video_enc->intra_dc_precision= intra_dc_precision - 8;
3428
3429         if (do_psnr)
3430             video_enc->flags|= CODEC_FLAG_PSNR;
3431
3432         /* two pass mode */
3433         if (do_pass) {
3434             if (do_pass == 1) {
3435                 video_enc->flags |= CODEC_FLAG_PASS1;
3436             } else {
3437                 video_enc->flags |= CODEC_FLAG_PASS2;
3438             }
3439         }
3440
3441         if (forced_key_frames)
3442             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3443     }
3444     if (video_language) {
3445         av_dict_set(&st->metadata, "language", video_language, 0);
3446         av_freep(&video_language);
3447     }
3448
3449     /* reset some key parameters */
3450     video_disable = 0;
3451     av_freep(&video_codec_name);
3452     av_freep(&forced_key_frames);
3453     video_stream_copy = 0;
3454     frame_pix_fmt = PIX_FMT_NONE;
3455 }
3456
3457 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3458 {
3459     AVStream *st;
3460     OutputStream *ost;
3461     AVCodec *codec= NULL;
3462     AVCodecContext *audio_enc;
3463     enum CodecID codec_id = CODEC_ID_NONE;
3464
3465     if(!audio_stream_copy){
3466         if (audio_codec_name) {
3467             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3468             codec = avcodec_find_encoder_by_name(audio_codec_name);
3469         } else {
3470             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3471             codec = avcodec_find_encoder(codec_id);
3472         }
3473     }
3474     ost = new_output_stream(oc, file_idx, codec);
3475     st  = ost->st;
3476
3477     ost->bitstream_filters = audio_bitstream_filters;
3478     audio_bitstream_filters= NULL;
3479
3480     st->codec->thread_count= thread_count;
3481
3482     audio_enc = st->codec;
3483     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3484
3485     if(audio_codec_tag)
3486         audio_enc->codec_tag= audio_codec_tag;
3487
3488     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3489         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3490     }
3491     if (audio_stream_copy) {
3492         st->stream_copy = 1;
3493     } else {
3494         audio_enc->codec_id = codec_id;
3495
3496         if (audio_qscale > QSCALE_NONE) {
3497             audio_enc->flags |= CODEC_FLAG_QSCALE;
3498             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3499         }
3500         if (audio_channels)
3501             audio_enc->channels = audio_channels;
3502         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3503             audio_enc->sample_fmt = audio_sample_fmt;
3504         if (audio_sample_rate)
3505             audio_enc->sample_rate = audio_sample_rate;
3506     }
3507     if (audio_language) {
3508         av_dict_set(&st->metadata, "language", audio_language, 0);
3509         av_freep(&audio_language);
3510     }
3511
3512     /* reset some key parameters */
3513     audio_disable = 0;
3514     av_freep(&audio_codec_name);
3515     audio_stream_copy = 0;
3516 }
3517
3518 static void new_data_stream(AVFormatContext *oc, int file_idx)
3519 {
3520     AVStream *st;
3521     OutputStream *ost;
3522     AVCodecContext *data_enc;
3523
3524     ost = new_output_stream(oc, file_idx, NULL);
3525     st  = ost->st;
3526     data_enc = st->codec;
3527     if (!data_stream_copy) {
3528         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3529         exit_program(1);
3530     }
3531
3532     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3533
3534     if (data_codec_tag)
3535         data_enc->codec_tag= data_codec_tag;
3536
3537     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3538         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3539     }
3540     if (data_stream_copy) {
3541         st->stream_copy = 1;
3542     }
3543
3544     data_disable = 0;
3545     av_freep(&data_codec_name);
3546     data_stream_copy = 0;
3547 }
3548
3549 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3550 {
3551     AVStream *st;
3552     OutputStream *ost;
3553     AVCodec *codec=NULL;
3554     AVCodecContext *subtitle_enc;
3555     enum CodecID codec_id = CODEC_ID_NONE;
3556
3557     if(!subtitle_stream_copy){
3558         if (subtitle_codec_name) {
3559             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1);
3560             codec = avcodec_find_encoder_by_name(subtitle_codec_name);
3561         } else {
3562             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3563             codec = avcodec_find_encoder(codec_id);
3564         }
3565     }
3566     ost = new_output_stream(oc, file_idx, codec);
3567     st  = ost->st;
3568     subtitle_enc = st->codec;
3569
3570     ost->bitstream_filters = subtitle_bitstream_filters;
3571     subtitle_bitstream_filters= NULL;
3572
3573     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3574
3575     if(subtitle_codec_tag)
3576         subtitle_enc->codec_tag= subtitle_codec_tag;
3577
3578     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3579         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3580     }
3581     if (subtitle_stream_copy) {
3582         st->stream_copy = 1;
3583     } else {
3584         subtitle_enc->codec_id = codec_id;
3585     }
3586
3587     if (subtitle_language) {
3588         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3589         av_freep(&subtitle_language);
3590     }
3591
3592     subtitle_disable = 0;
3593     av_freep(&subtitle_codec_name);
3594     subtitle_stream_copy = 0;
3595 }
3596
3597 static int opt_new_stream(const char *opt, const char *arg)
3598 {
3599     AVFormatContext *oc;
3600     int file_idx = nb_output_files - 1;
3601     if (nb_output_files <= 0) {
3602         fprintf(stderr, "At least one output file must be specified\n");
3603         exit_program(1);
3604     }
3605     oc = output_files[file_idx];
3606
3607     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3608     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3609     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3610     else if (!strcmp(opt, "newdata"    )) new_data_stream    (oc, file_idx);
3611     else av_assert0(0);
3612     return 0;
3613 }
3614
3615 /* arg format is "output-stream-index:streamid-value". */
3616 static int opt_streamid(const char *opt, const char *arg)
3617 {
3618     int idx;
3619     char *p;
3620     char idx_str[16];
3621
3622     av_strlcpy(idx_str, arg, sizeof(idx_str));
3623     p = strchr(idx_str, ':');
3624     if (!p) {
3625         fprintf(stderr,
3626                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3627                 arg, opt);
3628         exit_program(1);
3629     }
3630     *p++ = '\0';
3631     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3632     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3633     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3634     return 0;
3635 }
3636
3637 static void opt_output_file(const char *filename)
3638 {
3639     AVFormatContext *oc;
3640     int i, err, use_video, use_audio, use_subtitle, use_data;
3641     int input_has_video, input_has_audio, input_has_subtitle, input_has_data;
3642     AVOutputFormat *file_oformat;
3643
3644     if (!strcmp(filename, "-"))
3645         filename = "pipe:";
3646
3647     oc = avformat_alloc_context();
3648     if (!oc) {
3649         print_error(filename, AVERROR(ENOMEM));
3650         exit_program(1);
3651     }
3652