1c7ccbb3131acf57292036afd593bd6ec77247f3
[ffmpeg.git] / ffmpeg.c
1 /*
2  * FFmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcore/audioconvert.h"
40 #include "libavcore/parseutils.h"
41 #include "libavcore/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_TERMIOS_H
73 #include <fcntl.h>
74 #include <sys/ioctl.h>
75 #include <sys/time.h>
76 #include <termios.h>
77 #elif HAVE_CONIO_H
78 #include <conio.h>
79 #endif
80 #include <time.h>
81
82 #include "cmdutils.h"
83
84 #include "libavutil/avassert.h"
85
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
88
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
91     int file_index;
92     int stream_index;
93     int sync_file_index;
94     int sync_stream_index;
95 } AVStreamMap;
96
97 /**
98  * select an input file for an output file
99  */
100 typedef struct AVMetaDataMap {
101     int  file;      //< file index
102     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103     int  index;     //< stream/chapter/program number
104 } AVMetaDataMap;
105
106 typedef struct AVChapterMap {
107     int in_file;
108     int out_file;
109 } AVChapterMap;
110
111 static const OptionDef options[];
112
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
116 #endif
117
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
126
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
131
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
134
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy   = 1;
139 static int metadata_streams_autocopy  = 1;
140 static int metadata_chapters_autocopy = 1;
141
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
144
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
148
149 static int frame_width  = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
173 #if CONFIG_AVFILTER
174 static char *vfilters = NULL;
175 AVFilterGraph *graph = NULL;
176 #endif
177
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char  *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
188
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
193
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
196
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int opt_shortest = 0;
217 static int video_global_header = 0;
218 static char *vstats_filename;
219 static FILE *vstats_file;
220 static int opt_programid = 0;
221 static int copy_initial_nonkeyframes = 0;
222
223 static int rate_emu = 0;
224
225 static int  video_channel = 0;
226 static char *video_standard;
227
228 static int audio_volume = 256;
229
230 static int exit_on_error = 0;
231 static int using_stdin = 0;
232 static int verbose = 1;
233 static int thread_count= 1;
234 static int q_pressed = 0;
235 static int64_t video_size = 0;
236 static int64_t audio_size = 0;
237 static int64_t extra_size = 0;
238 static int nb_frames_dup = 0;
239 static int nb_frames_drop = 0;
240 static int input_sync;
241 static uint64_t limit_filesize = 0;
242 static int force_fps = 0;
243 static char *forced_key_frames = NULL;
244
245 static float dts_delta_threshold = 10;
246
247 static unsigned int sws_flags = SWS_BICUBIC;
248
249 static int64_t timer_start;
250
251 static uint8_t *audio_buf;
252 static uint8_t *audio_out;
253 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
254
255 static short *samples;
256
257 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
260
261 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
262
263 struct AVInputStream;
264
265 typedef struct AVOutputStream {
266     int file_index;          /* file index */
267     int index;               /* stream index in the output file */
268     int source_index;        /* AVInputStream index */
269     AVStream *st;            /* stream in the output file */
270     int encoding_needed;     /* true if encoding needed for this stream */
271     int frame_number;
272     /* input pts and corresponding output pts
273        for A/V sync */
274     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
275     struct AVInputStream *sync_ist; /* input stream to sync against */
276     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
277     AVBitStreamFilterContext *bitstream_filters;
278     /* video only */
279     int video_resample;
280     AVFrame pict_tmp;      /* temporary image for resampling */
281     struct SwsContext *img_resample_ctx; /* for image resampling */
282     int resample_height;
283     int resample_width;
284     int resample_pix_fmt;
285
286     /* full frame size of first frame */
287     int original_height;
288     int original_width;
289
290     /* forced key frames */
291     int64_t *forced_kf_pts;
292     int forced_kf_count;
293     int forced_kf_index;
294
295     /* audio only */
296     int audio_resample;
297     ReSampleContext *resample; /* for audio resampling */
298     int resample_sample_fmt;
299     int resample_channels;
300     int resample_sample_rate;
301     int reformat_pair;
302     AVAudioConvert *reformat_ctx;
303     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
304     FILE *logfile;
305 } AVOutputStream;
306
307 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
308 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
309
310 typedef struct AVInputStream {
311     int file_index;
312     int index;
313     AVStream *st;
314     int discard;             /* true if stream data should be discarded */
315     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
316     int64_t sample_index;      /* current sample */
317
318     int64_t       start;     /* time when read started */
319     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
320                                 is not defined */
321     int64_t       pts;       /* current pts */
322     PtsCorrectionContext pts_ctx;
323     int is_start;            /* is 1 at the start and after a discontinuity */
324     int showed_multi_packet_warning;
325     int is_past_recording_time;
326 #if CONFIG_AVFILTER
327     AVFilterContext *output_video_filter;
328     AVFilterContext *input_video_filter;
329     AVFrame *filter_frame;
330     int has_filter_frame;
331     AVFilterBufferRef *picref;
332 #endif
333 } AVInputStream;
334
335 typedef struct AVInputFile {
336     int eof_reached;      /* true if eof reached */
337     int ist_index;        /* index of first stream in ist_table */
338     int buffer_size;      /* current total buffer size */
339     int nb_streams;       /* nb streams we are aware of */
340 } AVInputFile;
341
342 #if HAVE_TERMIOS_H
343
344 /* init terminal so that we can grab keys */
345 static struct termios oldtty;
346 #endif
347
348 #if CONFIG_AVFILTER
349
350 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
351 {
352     AVFilterContext *last_filter, *filter;
353     /** filter graph containing all filters including input & output */
354     AVCodecContext *codec = ost->st->codec;
355     AVCodecContext *icodec = ist->st->codec;
356     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
357     char args[255];
358     int ret;
359
360     graph = avfilter_graph_alloc();
361
362     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
363              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
364     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
365                                        "src", args, NULL, graph);
366     if (ret < 0)
367         return ret;
368     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
369                                        "out", NULL, &ffsink_ctx, graph);
370     if (ret < 0)
371         return ret;
372     last_filter = ist->input_video_filter;
373
374     if (codec->width  != icodec->width || codec->height != icodec->height) {
375         snprintf(args, 255, "%d:%d:flags=0x%X",
376                  codec->width,
377                  codec->height,
378                  (int)av_get_int(sws_opts, "sws_flags", NULL));
379         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380                                                 NULL, args, NULL, graph)) < 0)
381             return ret;
382         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
383             return ret;
384         last_filter = filter;
385     }
386
387     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
388     graph->scale_sws_opts = av_strdup(args);
389
390     if (vfilters) {
391         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
392         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
393
394         outputs->name    = av_strdup("in");
395         outputs->filter_ctx = last_filter;
396         outputs->pad_idx = 0;
397         outputs->next    = NULL;
398
399         inputs->name    = av_strdup("out");
400         inputs->filter_ctx = ist->output_video_filter;
401         inputs->pad_idx = 0;
402         inputs->next    = NULL;
403
404         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
405             return ret;
406         av_freep(&vfilters);
407     } else {
408         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
409             return ret;
410     }
411
412     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
413         return ret;
414
415     codec->width  = ist->output_video_filter->inputs[0]->w;
416     codec->height = ist->output_video_filter->inputs[0]->h;
417
418     return 0;
419 }
420 #endif /* CONFIG_AVFILTER */
421
422 static void term_exit(void)
423 {
424     av_log(NULL, AV_LOG_QUIET, "");
425 #if HAVE_TERMIOS_H
426     tcsetattr (0, TCSANOW, &oldtty);
427 #endif
428 }
429
430 static volatile int received_sigterm = 0;
431
432 static void
433 sigterm_handler(int sig)
434 {
435     received_sigterm = sig;
436     term_exit();
437 }
438
439 static void term_init(void)
440 {
441 #if HAVE_TERMIOS_H
442     struct termios tty;
443
444     tcgetattr (0, &tty);
445     oldtty = tty;
446     atexit(term_exit);
447
448     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
449                           |INLCR|IGNCR|ICRNL|IXON);
450     tty.c_oflag |= OPOST;
451     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
452     tty.c_cflag &= ~(CSIZE|PARENB);
453     tty.c_cflag |= CS8;
454     tty.c_cc[VMIN] = 1;
455     tty.c_cc[VTIME] = 0;
456
457     tcsetattr (0, TCSANOW, &tty);
458     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
459 #endif
460
461     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
462     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
463 #ifdef SIGXCPU
464     signal(SIGXCPU, sigterm_handler);
465 #endif
466 }
467
468 /* read a key without blocking */
469 static int read_key(void)
470 {
471 #if HAVE_TERMIOS_H
472     int n = 1;
473     unsigned char ch;
474     struct timeval tv;
475     fd_set rfds;
476
477     FD_ZERO(&rfds);
478     FD_SET(0, &rfds);
479     tv.tv_sec = 0;
480     tv.tv_usec = 0;
481     n = select(1, &rfds, NULL, NULL, &tv);
482     if (n > 0) {
483         n = read(0, &ch, 1);
484         if (n == 1)
485             return ch;
486
487         return n;
488     }
489 #elif HAVE_CONIO_H
490     if(kbhit())
491         return(getch());
492 #endif
493     return -1;
494 }
495
496 static int decode_interrupt_cb(void)
497 {
498     return q_pressed || (q_pressed = read_key() == 'q');
499 }
500
501 static int ffmpeg_exit(int ret)
502 {
503     int i;
504
505     /* close files */
506     for(i=0;i<nb_output_files;i++) {
507         /* maybe av_close_output_file ??? */
508         AVFormatContext *s = output_files[i];
509         int j;
510         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
511             url_fclose(s->pb);
512         for(j=0;j<s->nb_streams;j++) {
513             av_metadata_free(&s->streams[j]->metadata);
514             av_free(s->streams[j]->codec);
515             av_free(s->streams[j]->info);
516             av_free(s->streams[j]);
517         }
518         for(j=0;j<s->nb_programs;j++) {
519             av_metadata_free(&s->programs[j]->metadata);
520         }
521         for(j=0;j<s->nb_chapters;j++) {
522             av_metadata_free(&s->chapters[j]->metadata);
523         }
524         av_metadata_free(&s->metadata);
525         av_free(s);
526         av_free(output_streams_for_file[i]);
527     }
528     for(i=0;i<nb_input_files;i++) {
529         av_close_input_file(input_files[i]);
530         av_free(input_files_ts_scale[i]);
531     }
532
533     av_free(intra_matrix);
534     av_free(inter_matrix);
535
536     if (vstats_file)
537         fclose(vstats_file);
538     av_free(vstats_filename);
539
540     av_free(opt_names);
541     av_free(streamid_map);
542     av_free(input_codecs);
543     av_free(output_codecs);
544     av_free(stream_maps);
545     av_free(meta_data_maps);
546
547     av_free(video_codec_name);
548     av_free(audio_codec_name);
549     av_free(subtitle_codec_name);
550
551     av_free(video_standard);
552
553     uninit_opts();
554     av_free(audio_buf);
555     av_free(audio_out);
556     allocated_audio_buf_size= allocated_audio_out_size= 0;
557     av_free(samples);
558
559 #if CONFIG_AVFILTER
560     avfilter_uninit();
561 #endif
562
563     if (received_sigterm) {
564         fprintf(stderr,
565             "Received signal %d: terminating.\n",
566             (int) received_sigterm);
567         exit (255);
568     }
569
570     exit(ret); /* not all OS-es handle main() return value */
571     return ret;
572 }
573
574 /* similar to ff_dynarray_add() and av_fast_realloc() */
575 static void *grow_array(void *array, int elem_size, int *size, int new_size)
576 {
577     if (new_size >= INT_MAX / elem_size) {
578         fprintf(stderr, "Array too big.\n");
579         ffmpeg_exit(1);
580     }
581     if (*size < new_size) {
582         uint8_t *tmp = av_realloc(array, new_size*elem_size);
583         if (!tmp) {
584             fprintf(stderr, "Could not alloc buffer.\n");
585             ffmpeg_exit(1);
586         }
587         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
588         *size = new_size;
589         return tmp;
590     }
591     return array;
592 }
593
594 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
595 {
596     if(codec && codec->sample_fmts){
597         const enum AVSampleFormat *p= codec->sample_fmts;
598         for(; *p!=-1; p++){
599             if(*p == st->codec->sample_fmt)
600                 break;
601         }
602         if(*p == -1)
603             st->codec->sample_fmt = codec->sample_fmts[0];
604     }
605 }
606
607 static void choose_sample_rate(AVStream *st, AVCodec *codec)
608 {
609     if(codec && codec->supported_samplerates){
610         const int *p= codec->supported_samplerates;
611         int best=0;
612         int best_dist=INT_MAX;
613         for(; *p; p++){
614             int dist= abs(st->codec->sample_rate - *p);
615             if(dist < best_dist){
616                 best_dist= dist;
617                 best= *p;
618             }
619         }
620         if(best_dist){
621             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
622         }
623         st->codec->sample_rate= best;
624     }
625 }
626
627 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
628 {
629     if(codec && codec->pix_fmts){
630         const enum PixelFormat *p= codec->pix_fmts;
631         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
632             if(st->codec->codec_id==CODEC_ID_MJPEG){
633                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
634             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
635                 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};
636             }
637         }
638         for(; *p!=-1; p++){
639             if(*p == st->codec->pix_fmt)
640                 break;
641         }
642         if(*p == -1)
643             st->codec->pix_fmt = codec->pix_fmts[0];
644     }
645 }
646
647 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
648 {
649     int idx = oc->nb_streams - 1;
650     AVOutputStream *ost;
651
652     output_streams_for_file[file_idx] =
653         grow_array(output_streams_for_file[file_idx],
654                    sizeof(*output_streams_for_file[file_idx]),
655                    &nb_output_streams_for_file[file_idx],
656                    oc->nb_streams);
657     ost = output_streams_for_file[file_idx][idx] =
658         av_mallocz(sizeof(AVOutputStream));
659     if (!ost) {
660         fprintf(stderr, "Could not alloc output stream\n");
661         ffmpeg_exit(1);
662     }
663     ost->file_index = file_idx;
664     ost->index = idx;
665     return ost;
666 }
667
668 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
669 {
670     int i, err;
671     AVFormatContext *ic;
672     int nopts = 0;
673
674     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
675     if (err < 0)
676         return err;
677     /* copy stream format */
678     s->nb_streams = 0;
679     for(i=0;i<ic->nb_streams;i++) {
680         AVStream *st;
681         AVCodec *codec;
682
683         s->nb_streams++;
684
685         // FIXME: a more elegant solution is needed
686         st = av_mallocz(sizeof(AVStream));
687         memcpy(st, ic->streams[i], sizeof(AVStream));
688         st->codec = avcodec_alloc_context();
689         if (!st->codec) {
690             print_error(filename, AVERROR(ENOMEM));
691             ffmpeg_exit(1);
692         }
693         avcodec_copy_context(st->codec, ic->streams[i]->codec);
694         s->streams[i] = st;
695
696         codec = avcodec_find_encoder(st->codec->codec_id);
697         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
698             if (audio_stream_copy) {
699                 st->stream_copy = 1;
700             } else
701                 choose_sample_fmt(st, codec);
702         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
703             if (video_stream_copy) {
704                 st->stream_copy = 1;
705             } else
706                 choose_pixel_fmt(st, codec);
707         }
708
709         if(!st->codec->thread_count)
710             st->codec->thread_count = 1;
711         if(st->codec->thread_count>1)
712             avcodec_thread_init(st->codec, st->codec->thread_count);
713
714         if(st->codec->flags & CODEC_FLAG_BITEXACT)
715             nopts = 1;
716
717         new_output_stream(s, nb_output_files);
718     }
719
720     if (!nopts)
721         s->timestamp = av_gettime();
722
723     av_close_input_file(ic);
724     return 0;
725 }
726
727 static double
728 get_sync_ipts(const AVOutputStream *ost)
729 {
730     const AVInputStream *ist = ost->sync_ist;
731     return (double)(ist->pts - start_time)/AV_TIME_BASE;
732 }
733
734 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
735     int ret;
736
737     while(bsfc){
738         AVPacket new_pkt= *pkt;
739         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
740                                           &new_pkt.data, &new_pkt.size,
741                                           pkt->data, pkt->size,
742                                           pkt->flags & AV_PKT_FLAG_KEY);
743         if(a>0){
744             av_free_packet(pkt);
745             new_pkt.destruct= av_destruct_packet;
746         } else if(a<0){
747             fprintf(stderr, "%s failed for stream %d, codec %s",
748                     bsfc->filter->name, pkt->stream_index,
749                     avctx->codec ? avctx->codec->name : "copy");
750             print_error("", a);
751             if (exit_on_error)
752                 ffmpeg_exit(1);
753         }
754         *pkt= new_pkt;
755
756         bsfc= bsfc->next;
757     }
758
759     ret= av_interleaved_write_frame(s, pkt);
760     if(ret < 0){
761         print_error("av_interleaved_write_frame()", ret);
762         ffmpeg_exit(1);
763     }
764 }
765
766 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
767
768 static void do_audio_out(AVFormatContext *s,
769                          AVOutputStream *ost,
770                          AVInputStream *ist,
771                          unsigned char *buf, int size)
772 {
773     uint8_t *buftmp;
774     int64_t audio_out_size, audio_buf_size;
775     int64_t allocated_for_size= size;
776
777     int size_out, frame_bytes, ret, resample_changed;
778     AVCodecContext *enc= ost->st->codec;
779     AVCodecContext *dec= ist->st->codec;
780     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
781     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
782     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
783
784 need_realloc:
785     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
786     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
787     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
788     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
789     audio_buf_size*= osize*enc->channels;
790
791     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
792     if(coded_bps > 8*osize)
793         audio_out_size= audio_out_size * coded_bps / (8*osize);
794     audio_out_size += FF_MIN_BUFFER_SIZE;
795
796     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
797         fprintf(stderr, "Buffer sizes too large\n");
798         ffmpeg_exit(1);
799     }
800
801     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
802     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
803     if (!audio_buf || !audio_out){
804         fprintf(stderr, "Out of memory in do_audio_out\n");
805         ffmpeg_exit(1);
806     }
807
808     if (enc->channels != dec->channels)
809         ost->audio_resample = 1;
810
811     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
812                        ost->resample_channels    != dec->channels   ||
813                        ost->resample_sample_rate != dec->sample_rate;
814
815     if ((ost->audio_resample && !ost->resample) || resample_changed) {
816         if (resample_changed) {
817             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",
818                    ist->file_index, ist->index,
819                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
820                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
821             ost->resample_sample_fmt  = dec->sample_fmt;
822             ost->resample_channels    = dec->channels;
823             ost->resample_sample_rate = dec->sample_rate;
824             if (ost->resample)
825                 audio_resample_close(ost->resample);
826         }
827         if (ost->resample_sample_fmt  == enc->sample_fmt &&
828             ost->resample_channels    == enc->channels   &&
829             ost->resample_sample_rate == enc->sample_rate) {
830             ost->resample = NULL;
831             ost->audio_resample = 0;
832         } else {
833             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
834                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
835             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
836                                                    enc->sample_rate, dec->sample_rate,
837                                                    enc->sample_fmt,  dec->sample_fmt,
838                                                    16, 10, 0, 0.8);
839             if (!ost->resample) {
840                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
841                         dec->channels, dec->sample_rate,
842                         enc->channels, enc->sample_rate);
843                 ffmpeg_exit(1);
844             }
845         }
846     }
847
848 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
849     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
850         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
851         if (ost->reformat_ctx)
852             av_audio_convert_free(ost->reformat_ctx);
853         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
854                                                    dec->sample_fmt, 1, NULL, 0);
855         if (!ost->reformat_ctx) {
856             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
857                 av_get_sample_fmt_name(dec->sample_fmt),
858                 av_get_sample_fmt_name(enc->sample_fmt));
859             ffmpeg_exit(1);
860         }
861         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
862     }
863
864     if(audio_sync_method){
865         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
866                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
867         double idelta= delta*dec->sample_rate / enc->sample_rate;
868         int byte_delta= ((int)idelta)*2*dec->channels;
869
870         //FIXME resample delay
871         if(fabs(delta) > 50){
872             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
873                 if(byte_delta < 0){
874                     byte_delta= FFMAX(byte_delta, -size);
875                     size += byte_delta;
876                     buf  -= byte_delta;
877                     if(verbose > 2)
878                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
879                     if(!size)
880                         return;
881                     ist->is_start=0;
882                 }else{
883                     static uint8_t *input_tmp= NULL;
884                     input_tmp= av_realloc(input_tmp, byte_delta + size);
885
886                     if(byte_delta > allocated_for_size - size){
887                         allocated_for_size= byte_delta + (int64_t)size;
888                         goto need_realloc;
889                     }
890                     ist->is_start=0;
891
892                     memset(input_tmp, 0, byte_delta);
893                     memcpy(input_tmp + byte_delta, buf, size);
894                     buf= input_tmp;
895                     size += byte_delta;
896                     if(verbose > 2)
897                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
898                 }
899             }else if(audio_sync_method>1){
900                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
901                 av_assert0(ost->audio_resample);
902                 if(verbose > 2)
903                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
904 //                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));
905                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
906             }
907         }
908     }else
909         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
910                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
911
912     if (ost->audio_resample) {
913         buftmp = audio_buf;
914         size_out = audio_resample(ost->resample,
915                                   (short *)buftmp, (short *)buf,
916                                   size / (dec->channels * isize));
917         size_out = size_out * enc->channels * osize;
918     } else {
919         buftmp = buf;
920         size_out = size;
921     }
922
923     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
924         const void *ibuf[6]= {buftmp};
925         void *obuf[6]= {audio_buf};
926         int istride[6]= {isize};
927         int ostride[6]= {osize};
928         int len= size_out/istride[0];
929         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
930             printf("av_audio_convert() failed\n");
931             if (exit_on_error)
932                 ffmpeg_exit(1);
933             return;
934         }
935         buftmp = audio_buf;
936         size_out = len*osize;
937     }
938
939     /* now encode as many frames as possible */
940     if (enc->frame_size > 1) {
941         /* output resampled raw samples */
942         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
943             fprintf(stderr, "av_fifo_realloc2() failed\n");
944             ffmpeg_exit(1);
945         }
946         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
947
948         frame_bytes = enc->frame_size * osize * enc->channels;
949
950         while (av_fifo_size(ost->fifo) >= frame_bytes) {
951             AVPacket pkt;
952             av_init_packet(&pkt);
953
954             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
955
956             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
957
958             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
959                                        (short *)audio_buf);
960             if (ret < 0) {
961                 fprintf(stderr, "Audio encoding failed\n");
962                 ffmpeg_exit(1);
963             }
964             audio_size += ret;
965             pkt.stream_index= ost->index;
966             pkt.data= audio_out;
967             pkt.size= ret;
968             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
969                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
970             pkt.flags |= AV_PKT_FLAG_KEY;
971             write_frame(s, &pkt, enc, ost->bitstream_filters);
972
973             ost->sync_opts += enc->frame_size;
974         }
975     } else {
976         AVPacket pkt;
977         av_init_packet(&pkt);
978
979         ost->sync_opts += size_out / (osize * enc->channels);
980
981         /* output a pcm frame */
982         /* determine the size of the coded buffer */
983         size_out /= osize;
984         if (coded_bps)
985             size_out = size_out*coded_bps/8;
986
987         if(size_out > audio_out_size){
988             fprintf(stderr, "Internal error, buffer size too small\n");
989             ffmpeg_exit(1);
990         }
991
992         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
993         ret = avcodec_encode_audio(enc, audio_out, size_out,
994                                    (short *)buftmp);
995         if (ret < 0) {
996             fprintf(stderr, "Audio encoding failed\n");
997             ffmpeg_exit(1);
998         }
999         audio_size += ret;
1000         pkt.stream_index= ost->index;
1001         pkt.data= audio_out;
1002         pkt.size= ret;
1003         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1004             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1005         pkt.flags |= AV_PKT_FLAG_KEY;
1006         write_frame(s, &pkt, enc, ost->bitstream_filters);
1007     }
1008 }
1009
1010 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1011 {
1012     AVCodecContext *dec;
1013     AVPicture *picture2;
1014     AVPicture picture_tmp;
1015     uint8_t *buf = 0;
1016
1017     dec = ist->st->codec;
1018
1019     /* deinterlace : must be done before any resize */
1020     if (do_deinterlace) {
1021         int size;
1022
1023         /* create temporary picture */
1024         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1025         buf = av_malloc(size);
1026         if (!buf)
1027             return;
1028
1029         picture2 = &picture_tmp;
1030         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1031
1032         if(avpicture_deinterlace(picture2, picture,
1033                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1034             /* if error, do not deinterlace */
1035             fprintf(stderr, "Deinterlacing failed\n");
1036             av_free(buf);
1037             buf = NULL;
1038             picture2 = picture;
1039         }
1040     } else {
1041         picture2 = picture;
1042     }
1043
1044     if (picture != picture2)
1045         *picture = *picture2;
1046     *bufp = buf;
1047 }
1048
1049 /* we begin to correct av delay at this threshold */
1050 #define AV_DELAY_MAX 0.100
1051
1052 static void do_subtitle_out(AVFormatContext *s,
1053                             AVOutputStream *ost,
1054                             AVInputStream *ist,
1055                             AVSubtitle *sub,
1056                             int64_t pts)
1057 {
1058     static uint8_t *subtitle_out = NULL;
1059     int subtitle_out_max_size = 1024 * 1024;
1060     int subtitle_out_size, nb, i;
1061     AVCodecContext *enc;
1062     AVPacket pkt;
1063
1064     if (pts == AV_NOPTS_VALUE) {
1065         fprintf(stderr, "Subtitle packets must have a pts\n");
1066         if (exit_on_error)
1067             ffmpeg_exit(1);
1068         return;
1069     }
1070
1071     enc = ost->st->codec;
1072
1073     if (!subtitle_out) {
1074         subtitle_out = av_malloc(subtitle_out_max_size);
1075     }
1076
1077     /* Note: DVB subtitle need one packet to draw them and one other
1078        packet to clear them */
1079     /* XXX: signal it in the codec context ? */
1080     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1081         nb = 2;
1082     else
1083         nb = 1;
1084
1085     for(i = 0; i < nb; i++) {
1086         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1087         // start_display_time is required to be 0
1088         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1089         sub->end_display_time -= sub->start_display_time;
1090         sub->start_display_time = 0;
1091         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1092                                                     subtitle_out_max_size, sub);
1093         if (subtitle_out_size < 0) {
1094             fprintf(stderr, "Subtitle encoding failed\n");
1095             ffmpeg_exit(1);
1096         }
1097
1098         av_init_packet(&pkt);
1099         pkt.stream_index = ost->index;
1100         pkt.data = subtitle_out;
1101         pkt.size = subtitle_out_size;
1102         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1103         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1104             /* XXX: the pts correction is handled here. Maybe handling
1105                it in the codec would be better */
1106             if (i == 0)
1107                 pkt.pts += 90 * sub->start_display_time;
1108             else
1109                 pkt.pts += 90 * sub->end_display_time;
1110         }
1111         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1112     }
1113 }
1114
1115 static int bit_buffer_size= 1024*256;
1116 static uint8_t *bit_buffer= NULL;
1117
1118 static void do_video_out(AVFormatContext *s,
1119                          AVOutputStream *ost,
1120                          AVInputStream *ist,
1121                          AVFrame *in_picture,
1122                          int *frame_size)
1123 {
1124     int nb_frames, i, ret;
1125     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1126     AVCodecContext *enc, *dec;
1127     double sync_ipts;
1128
1129     enc = ost->st->codec;
1130     dec = ist->st->codec;
1131
1132     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1133
1134     /* by default, we output a single frame */
1135     nb_frames = 1;
1136
1137     *frame_size = 0;
1138
1139     if(video_sync_method){
1140         double vdelta = sync_ipts - ost->sync_opts;
1141         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1142         if (vdelta < -1.1)
1143             nb_frames = 0;
1144         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1145             if(vdelta<=-0.6){
1146                 nb_frames=0;
1147             }else if(vdelta>0.6)
1148                 ost->sync_opts= lrintf(sync_ipts);
1149         }else if (vdelta > 1.1)
1150             nb_frames = lrintf(vdelta);
1151 //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);
1152         if (nb_frames == 0){
1153             ++nb_frames_drop;
1154             if (verbose>2)
1155                 fprintf(stderr, "*** drop!\n");
1156         }else if (nb_frames > 1) {
1157             nb_frames_dup += nb_frames - 1;
1158             if (verbose>2)
1159                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1160         }
1161     }else
1162         ost->sync_opts= lrintf(sync_ipts);
1163
1164     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1165     if (nb_frames <= 0)
1166         return;
1167
1168     formatted_picture = in_picture;
1169     final_picture = formatted_picture;
1170     padding_src = formatted_picture;
1171     resampling_dst = &ost->pict_tmp;
1172
1173     if (   ost->resample_height != ist->st->codec->height
1174         || ost->resample_width  != ist->st->codec->width
1175         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1176
1177         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1178         if(!ost->video_resample)
1179             ffmpeg_exit(1);
1180     }
1181
1182 #if !CONFIG_AVFILTER
1183     if (ost->video_resample) {
1184         padding_src = NULL;
1185         final_picture = &ost->pict_tmp;
1186         if(  ost->resample_height != ist->st->codec->height
1187           || ost->resample_width  != ist->st->codec->width
1188           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1189
1190             /* initialize a new scaler context */
1191             sws_freeContext(ost->img_resample_ctx);
1192             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1193             ost->img_resample_ctx = sws_getContext(
1194                 ist->st->codec->width,
1195                 ist->st->codec->height,
1196                 ist->st->codec->pix_fmt,
1197                 ost->st->codec->width,
1198                 ost->st->codec->height,
1199                 ost->st->codec->pix_fmt,
1200                 sws_flags, NULL, NULL, NULL);
1201             if (ost->img_resample_ctx == NULL) {
1202                 fprintf(stderr, "Cannot get resampling context\n");
1203                 ffmpeg_exit(1);
1204             }
1205         }
1206         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1207               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1208     }
1209 #endif
1210
1211     /* duplicates frame if needed */
1212     for(i=0;i<nb_frames;i++) {
1213         AVPacket pkt;
1214         av_init_packet(&pkt);
1215         pkt.stream_index= ost->index;
1216
1217         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1218             /* raw pictures are written as AVPicture structure to
1219                avoid any copies. We support temorarily the older
1220                method. */
1221             AVFrame* old_frame = enc->coded_frame;
1222             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1223             pkt.data= (uint8_t *)final_picture;
1224             pkt.size=  sizeof(AVPicture);
1225             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1226             pkt.flags |= AV_PKT_FLAG_KEY;
1227
1228             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1229             enc->coded_frame = old_frame;
1230         } else {
1231             AVFrame big_picture;
1232
1233             big_picture= *final_picture;
1234             /* better than nothing: use input picture interlaced
1235                settings */
1236             big_picture.interlaced_frame = in_picture->interlaced_frame;
1237             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1238                 if(top_field_first == -1)
1239                     big_picture.top_field_first = in_picture->top_field_first;
1240                 else
1241                     big_picture.top_field_first = top_field_first;
1242             }
1243
1244             /* handles sameq here. This is not correct because it may
1245                not be a global option */
1246             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1247             if(!me_threshold)
1248                 big_picture.pict_type = 0;
1249 //            big_picture.pts = AV_NOPTS_VALUE;
1250             big_picture.pts= ost->sync_opts;
1251 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1252 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1253             if (ost->forced_kf_index < ost->forced_kf_count &&
1254                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1255                 big_picture.pict_type = FF_I_TYPE;
1256                 ost->forced_kf_index++;
1257             }
1258             ret = avcodec_encode_video(enc,
1259                                        bit_buffer, bit_buffer_size,
1260                                        &big_picture);
1261             if (ret < 0) {
1262                 fprintf(stderr, "Video encoding failed\n");
1263                 ffmpeg_exit(1);
1264             }
1265
1266             if(ret>0){
1267                 pkt.data= bit_buffer;
1268                 pkt.size= ret;
1269                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1270                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1271 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1272    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1273    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1274
1275                 if(enc->coded_frame->key_frame)
1276                     pkt.flags |= AV_PKT_FLAG_KEY;
1277                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1278                 *frame_size = ret;
1279                 video_size += ret;
1280                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1281                 //        enc->frame_number-1, ret, enc->pict_type);
1282                 /* if two pass, output log */
1283                 if (ost->logfile && enc->stats_out) {
1284                     fprintf(ost->logfile, "%s", enc->stats_out);
1285                 }
1286             }
1287         }
1288         ost->sync_opts++;
1289         ost->frame_number++;
1290     }
1291 }
1292
1293 static double psnr(double d){
1294     return -10.0*log(d)/log(10.0);
1295 }
1296
1297 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1298                            int frame_size)
1299 {
1300     AVCodecContext *enc;
1301     int frame_number;
1302     double ti1, bitrate, avg_bitrate;
1303
1304     /* this is executed just the first time do_video_stats is called */
1305     if (!vstats_file) {
1306         vstats_file = fopen(vstats_filename, "w");
1307         if (!vstats_file) {
1308             perror("fopen");
1309             ffmpeg_exit(1);
1310         }
1311     }
1312
1313     enc = ost->st->codec;
1314     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1315         frame_number = ost->frame_number;
1316         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1317         if (enc->flags&CODEC_FLAG_PSNR)
1318             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1319
1320         fprintf(vstats_file,"f_size= %6d ", frame_size);
1321         /* compute pts value */
1322         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1323         if (ti1 < 0.01)
1324             ti1 = 0.01;
1325
1326         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1327         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1328         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1329             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1330         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1331     }
1332 }
1333
1334 static void print_report(AVFormatContext **output_files,
1335                          AVOutputStream **ost_table, int nb_ostreams,
1336                          int is_last_report)
1337 {
1338     char buf[1024];
1339     AVOutputStream *ost;
1340     AVFormatContext *oc;
1341     int64_t total_size;
1342     AVCodecContext *enc;
1343     int frame_number, vid, i;
1344     double bitrate, ti1, pts;
1345     static int64_t last_time = -1;
1346     static int qp_histogram[52];
1347
1348     if (!is_last_report) {
1349         int64_t cur_time;
1350         /* display the report every 0.5 seconds */
1351         cur_time = av_gettime();
1352         if (last_time == -1) {
1353             last_time = cur_time;
1354             return;
1355         }
1356         if ((cur_time - last_time) < 500000)
1357             return;
1358         last_time = cur_time;
1359     }
1360
1361
1362     oc = output_files[0];
1363
1364     total_size = url_fsize(oc->pb);
1365     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1366         total_size= url_ftell(oc->pb);
1367
1368     buf[0] = '\0';
1369     ti1 = 1e10;
1370     vid = 0;
1371     for(i=0;i<nb_ostreams;i++) {
1372         ost = ost_table[i];
1373         enc = ost->st->codec;
1374         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1375             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1376                      !ost->st->stream_copy ?
1377                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1378         }
1379         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1380             float t = (av_gettime()-timer_start) / 1000000.0;
1381
1382             frame_number = ost->frame_number;
1383             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1384                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1385                      !ost->st->stream_copy ?
1386                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1387             if(is_last_report)
1388                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1389             if(qp_hist){
1390                 int j;
1391                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1392                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1393                     qp_histogram[qp]++;
1394                 for(j=0; j<32; j++)
1395                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1396             }
1397             if (enc->flags&CODEC_FLAG_PSNR){
1398                 int j;
1399                 double error, error_sum=0;
1400                 double scale, scale_sum=0;
1401                 char type[3]= {'Y','U','V'};
1402                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1403                 for(j=0; j<3; j++){
1404                     if(is_last_report){
1405                         error= enc->error[j];
1406                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1407                     }else{
1408                         error= enc->coded_frame->error[j];
1409                         scale= enc->width*enc->height*255.0*255.0;
1410                     }
1411                     if(j) scale/=4;
1412                     error_sum += error;
1413                     scale_sum += scale;
1414                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1415                 }
1416                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1417             }
1418             vid = 1;
1419         }
1420         /* compute min output value */
1421         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1422         if ((pts < ti1) && (pts > 0))
1423             ti1 = pts;
1424     }
1425     if (ti1 < 0.01)
1426         ti1 = 0.01;
1427
1428     if (verbose || is_last_report) {
1429         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1430
1431         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1432             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1433             (double)total_size / 1024, ti1, bitrate);
1434
1435         if (nb_frames_dup || nb_frames_drop)
1436           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1437                   nb_frames_dup, nb_frames_drop);
1438
1439         if (verbose >= 0)
1440             fprintf(stderr, "%s    \r", buf);
1441
1442         fflush(stderr);
1443     }
1444
1445     if (is_last_report && verbose >= 0){
1446         int64_t raw= audio_size + video_size + extra_size;
1447         fprintf(stderr, "\n");
1448         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1449                 video_size/1024.0,
1450                 audio_size/1024.0,
1451                 extra_size/1024.0,
1452                 100.0*(total_size - raw)/raw
1453         );
1454     }
1455 }
1456
1457 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1458 static int output_packet(AVInputStream *ist, int ist_index,
1459                          AVOutputStream **ost_table, int nb_ostreams,
1460                          const AVPacket *pkt)
1461 {
1462     AVFormatContext *os;
1463     AVOutputStream *ost;
1464     int ret, i;
1465     int got_picture;
1466     AVFrame picture;
1467     void *buffer_to_free;
1468     static unsigned int samples_size= 0;
1469     AVSubtitle subtitle, *subtitle_to_free;
1470     int64_t pkt_pts = AV_NOPTS_VALUE;
1471 #if CONFIG_AVFILTER
1472     int frame_available;
1473 #endif
1474
1475     AVPacket avpkt;
1476     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1477
1478     if(ist->next_pts == AV_NOPTS_VALUE)
1479         ist->next_pts= ist->pts;
1480
1481     if (pkt == NULL) {
1482         /* EOF handling */
1483         av_init_packet(&avpkt);
1484         avpkt.data = NULL;
1485         avpkt.size = 0;
1486         goto handle_eof;
1487     } else {
1488         avpkt = *pkt;
1489     }
1490
1491     if(pkt->dts != AV_NOPTS_VALUE)
1492         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1493     if(pkt->pts != AV_NOPTS_VALUE)
1494         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1495
1496     //while we have more to decode or while the decoder did output something on EOF
1497     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1498         uint8_t *data_buf, *decoded_data_buf;
1499         int data_size, decoded_data_size;
1500     handle_eof:
1501         ist->pts= ist->next_pts;
1502
1503         if(avpkt.size && avpkt.size != pkt->size &&
1504            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1505             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1506             ist->showed_multi_packet_warning=1;
1507         }
1508
1509         /* decode the packet if needed */
1510         decoded_data_buf = NULL; /* fail safe */
1511         decoded_data_size= 0;
1512         data_buf  = avpkt.data;
1513         data_size = avpkt.size;
1514         subtitle_to_free = NULL;
1515         if (ist->decoding_needed) {
1516             switch(ist->st->codec->codec_type) {
1517             case AVMEDIA_TYPE_AUDIO:{
1518                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1519                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1520                     av_free(samples);
1521                     samples= av_malloc(samples_size);
1522                 }
1523                 decoded_data_size= samples_size;
1524                     /* XXX: could avoid copy if PCM 16 bits with same
1525                        endianness as CPU */
1526                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1527                                             &avpkt);
1528                 if (ret < 0)
1529                     goto fail_decode;
1530                 avpkt.data += ret;
1531                 avpkt.size -= ret;
1532                 data_size   = ret;
1533                 /* Some bug in mpeg audio decoder gives */
1534                 /* decoded_data_size < 0, it seems they are overflows */
1535                 if (decoded_data_size <= 0) {
1536                     /* no audio frame */
1537                     continue;
1538                 }
1539                 decoded_data_buf = (uint8_t *)samples;
1540                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1541                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1542                 break;}
1543             case AVMEDIA_TYPE_VIDEO:
1544                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1545                     /* XXX: allocate picture correctly */
1546                     avcodec_get_frame_defaults(&picture);
1547                     ist->st->codec->reordered_opaque = pkt_pts;
1548                     pkt_pts = AV_NOPTS_VALUE;
1549
1550                     ret = avcodec_decode_video2(ist->st->codec,
1551                                                 &picture, &got_picture, &avpkt);
1552                     ist->st->quality= picture.quality;
1553                     if (ret < 0)
1554                         goto fail_decode;
1555                     if (!got_picture) {
1556                         /* no picture yet */
1557                         goto discard_packet;
1558                     }
1559                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1560                     if (ist->st->codec->time_base.num != 0) {
1561                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1562                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1563                                           ist->st->codec->time_base.num * ticks) /
1564                             ist->st->codec->time_base.den;
1565                     }
1566                     avpkt.size = 0;
1567                     break;
1568             case AVMEDIA_TYPE_SUBTITLE:
1569                 ret = avcodec_decode_subtitle2(ist->st->codec,
1570                                                &subtitle, &got_picture, &avpkt);
1571                 if (ret < 0)
1572                     goto fail_decode;
1573                 if (!got_picture) {
1574                     goto discard_packet;
1575                 }
1576                 subtitle_to_free = &subtitle;
1577                 avpkt.size = 0;
1578                 break;
1579             default:
1580                 goto fail_decode;
1581             }
1582         } else {
1583             switch(ist->st->codec->codec_type) {
1584             case AVMEDIA_TYPE_AUDIO:
1585                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1586                     ist->st->codec->sample_rate;
1587                 break;
1588             case AVMEDIA_TYPE_VIDEO:
1589                 if (ist->st->codec->time_base.num != 0) {
1590                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1591                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1592                                       ist->st->codec->time_base.num * ticks) /
1593                         ist->st->codec->time_base.den;
1594                 }
1595                 break;
1596             }
1597             ret = avpkt.size;
1598             avpkt.size = 0;
1599         }
1600
1601         buffer_to_free = NULL;
1602         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1603             pre_process_video_frame(ist, (AVPicture *)&picture,
1604                                     &buffer_to_free);
1605         }
1606
1607 #if CONFIG_AVFILTER
1608         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1609             // add it to be filtered
1610             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1611                                      ist->pts,
1612                                      ist->st->codec->sample_aspect_ratio);
1613         }
1614 #endif
1615
1616         // preprocess audio (volume)
1617         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1618             if (audio_volume != 256) {
1619                 short *volp;
1620                 volp = samples;
1621                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1622                     int v = ((*volp) * audio_volume + 128) >> 8;
1623                     if (v < -32768) v = -32768;
1624                     if (v >  32767) v = 32767;
1625                     *volp++ = v;
1626                 }
1627             }
1628         }
1629
1630         /* frame rate emulation */
1631         if (rate_emu) {
1632             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1633             int64_t now = av_gettime() - ist->start;
1634             if (pts > now)
1635                 usleep(pts - now);
1636         }
1637 #if CONFIG_AVFILTER
1638         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1639             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1640 #endif
1641         /* if output time reached then transcode raw format,
1642            encode packets and output them */
1643         if (start_time == 0 || ist->pts >= start_time)
1644 #if CONFIG_AVFILTER
1645         while (frame_available) {
1646             AVRational ist_pts_tb;
1647             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1648                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1649             if (ist->picref)
1650                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1651 #endif
1652             for(i=0;i<nb_ostreams;i++) {
1653                 int frame_size;
1654
1655                 ost = ost_table[i];
1656                 if (ost->source_index == ist_index) {
1657                     os = output_files[ost->file_index];
1658
1659                     /* set the input output pts pairs */
1660                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1661
1662                     if (ost->encoding_needed) {
1663                         av_assert0(ist->decoding_needed);
1664                         switch(ost->st->codec->codec_type) {
1665                         case AVMEDIA_TYPE_AUDIO:
1666                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1667                             break;
1668                         case AVMEDIA_TYPE_VIDEO:
1669 #if CONFIG_AVFILTER
1670                             if (ist->picref->video)
1671                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1672 #endif
1673                             do_video_out(os, ost, ist, &picture, &frame_size);
1674                             if (vstats_filename && frame_size)
1675                                 do_video_stats(os, ost, frame_size);
1676                             break;
1677                         case AVMEDIA_TYPE_SUBTITLE:
1678                             do_subtitle_out(os, ost, ist, &subtitle,
1679                                             pkt->pts);
1680                             break;
1681                         default:
1682                             abort();
1683                         }
1684                     } else {
1685                         AVFrame avframe; //FIXME/XXX remove this
1686                         AVPacket opkt;
1687                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1688
1689                         av_init_packet(&opkt);
1690
1691                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1692                             continue;
1693
1694                         /* no reencoding needed : output the packet directly */
1695                         /* force the input stream PTS */
1696
1697                         avcodec_get_frame_defaults(&avframe);
1698                         ost->st->codec->coded_frame= &avframe;
1699                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1700
1701                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1702                             audio_size += data_size;
1703                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1704                             video_size += data_size;
1705                             ost->sync_opts++;
1706                         }
1707
1708                         opkt.stream_index= ost->index;
1709                         if(pkt->pts != AV_NOPTS_VALUE)
1710                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1711                         else
1712                             opkt.pts= AV_NOPTS_VALUE;
1713
1714                         if (pkt->dts == AV_NOPTS_VALUE)
1715                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1716                         else
1717                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1718                         opkt.dts -= ost_tb_start_time;
1719
1720                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1721                         opkt.flags= pkt->flags;
1722
1723                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1724                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1725                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1726                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1727                            ) {
1728                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1729                                 opkt.destruct= av_destruct_packet;
1730                         } else {
1731                             opkt.data = data_buf;
1732                             opkt.size = data_size;
1733                         }
1734
1735                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1736                         ost->st->codec->frame_number++;
1737                         ost->frame_number++;
1738                         av_free_packet(&opkt);
1739                     }
1740                 }
1741             }
1742
1743 #if CONFIG_AVFILTER
1744             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1745                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1746             if(ist->picref)
1747                 avfilter_unref_buffer(ist->picref);
1748         }
1749 #endif
1750         av_free(buffer_to_free);
1751         /* XXX: allocate the subtitles in the codec ? */
1752         if (subtitle_to_free) {
1753             avsubtitle_free(subtitle_to_free);
1754             subtitle_to_free = NULL;
1755         }
1756     }
1757  discard_packet:
1758     if (pkt == NULL) {
1759         /* EOF handling */
1760
1761         for(i=0;i<nb_ostreams;i++) {
1762             ost = ost_table[i];
1763             if (ost->source_index == ist_index) {
1764                 AVCodecContext *enc= ost->st->codec;
1765                 os = output_files[ost->file_index];
1766
1767                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1768                     continue;
1769                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1770                     continue;
1771
1772                 if (ost->encoding_needed) {
1773                     for(;;) {
1774                         AVPacket pkt;
1775                         int fifo_bytes;
1776                         av_init_packet(&pkt);
1777                         pkt.stream_index= ost->index;
1778
1779                         switch(ost->st->codec->codec_type) {
1780                         case AVMEDIA_TYPE_AUDIO:
1781                             fifo_bytes = av_fifo_size(ost->fifo);
1782                             ret = 0;
1783                             /* encode any samples remaining in fifo */
1784                             if (fifo_bytes > 0) {
1785                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1786                                 int fs_tmp = enc->frame_size;
1787
1788                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1789                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1790                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1791                                 } else { /* pad */
1792                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1793                                     if (allocated_audio_buf_size < frame_bytes)
1794                                         ffmpeg_exit(1);
1795                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1796                                 }
1797
1798                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1799                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1800                                                           ost->st->time_base.num, enc->sample_rate);
1801                                 enc->frame_size = fs_tmp;
1802                             }
1803                             if(ret <= 0) {
1804                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1805                             }
1806                             if (ret < 0) {
1807                                 fprintf(stderr, "Audio encoding failed\n");
1808                                 ffmpeg_exit(1);
1809                             }
1810                             audio_size += ret;
1811                             pkt.flags |= AV_PKT_FLAG_KEY;
1812                             break;
1813                         case AVMEDIA_TYPE_VIDEO:
1814                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1815                             if (ret < 0) {
1816                                 fprintf(stderr, "Video encoding failed\n");
1817                                 ffmpeg_exit(1);
1818                             }
1819                             video_size += ret;
1820                             if(enc->coded_frame && enc->coded_frame->key_frame)
1821                                 pkt.flags |= AV_PKT_FLAG_KEY;
1822                             if (ost->logfile && enc->stats_out) {
1823                                 fprintf(ost->logfile, "%s", enc->stats_out);
1824                             }
1825                             break;
1826                         default:
1827                             ret=-1;
1828                         }
1829
1830                         if(ret<=0)
1831                             break;
1832                         pkt.data= bit_buffer;
1833                         pkt.size= ret;
1834                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1835                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1836                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1837                     }
1838                 }
1839             }
1840         }
1841     }
1842
1843     return 0;
1844  fail_decode:
1845     return -1;
1846 }
1847
1848 static void print_sdp(AVFormatContext **avc, int n)
1849 {
1850     char sdp[2048];
1851
1852     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1853     printf("SDP:\n%s\n", sdp);
1854     fflush(stdout);
1855 }
1856
1857 static int copy_chapters(int infile, int outfile)
1858 {
1859     AVFormatContext *is = input_files[infile];
1860     AVFormatContext *os = output_files[outfile];
1861     int i;
1862
1863     for (i = 0; i < is->nb_chapters; i++) {
1864         AVChapter *in_ch = is->chapters[i], *out_ch;
1865         AVMetadataTag *t = NULL;
1866         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1867                                       AV_TIME_BASE_Q, in_ch->time_base);
1868         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1869                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1870
1871
1872         if (in_ch->end < ts_off)
1873             continue;
1874         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1875             break;
1876
1877         out_ch = av_mallocz(sizeof(AVChapter));
1878         if (!out_ch)
1879             return AVERROR(ENOMEM);
1880
1881         out_ch->id        = in_ch->id;
1882         out_ch->time_base = in_ch->time_base;
1883         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1884         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1885
1886         if (metadata_chapters_autocopy)
1887             while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1888                 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1889
1890         os->nb_chapters++;
1891         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1892         if (!os->chapters)
1893             return AVERROR(ENOMEM);
1894         os->chapters[os->nb_chapters - 1] = out_ch;
1895     }
1896     return 0;
1897 }
1898
1899 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1900                                     AVCodecContext *avctx)
1901 {
1902     char *p;
1903     int n = 1, i;
1904     int64_t t;
1905
1906     for (p = kf; *p; p++)
1907         if (*p == ',')
1908             n++;
1909     ost->forced_kf_count = n;
1910     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1911     if (!ost->forced_kf_pts) {
1912         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1913         ffmpeg_exit(1);
1914     }
1915     for (i = 0; i < n; i++) {
1916         p = i ? strchr(p, ',') + 1 : kf;
1917         t = parse_time_or_die("force_key_frames", p, 1);
1918         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1919     }
1920 }
1921
1922 /*
1923  * The following code is the main loop of the file converter
1924  */
1925 static int transcode(AVFormatContext **output_files,
1926                      int nb_output_files,
1927                      AVFormatContext **input_files,
1928                      int nb_input_files,
1929                      AVStreamMap *stream_maps, int nb_stream_maps)
1930 {
1931     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1932     AVFormatContext *is, *os;
1933     AVCodecContext *codec, *icodec;
1934     AVOutputStream *ost, **ost_table = NULL;
1935     AVInputStream *ist, **ist_table = NULL;
1936     AVInputFile *file_table;
1937     char error[1024];
1938     int key;
1939     int want_sdp = 1;
1940     uint8_t no_packet[MAX_FILES]={0};
1941     int no_packet_count=0;
1942
1943     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1944     if (!file_table)
1945         goto fail;
1946
1947     /* input stream init */
1948     j = 0;
1949     for(i=0;i<nb_input_files;i++) {
1950         is = input_files[i];
1951         file_table[i].ist_index = j;
1952         file_table[i].nb_streams = is->nb_streams;
1953         j += is->nb_streams;
1954     }
1955     nb_istreams = j;
1956
1957     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1958     if (!ist_table)
1959         goto fail;
1960
1961     for(i=0;i<nb_istreams;i++) {
1962         ist = av_mallocz(sizeof(AVInputStream));
1963         if (!ist)
1964             goto fail;
1965         ist_table[i] = ist;
1966     }
1967     j = 0;
1968     for(i=0;i<nb_input_files;i++) {
1969         is = input_files[i];
1970         for(k=0;k<is->nb_streams;k++) {
1971             ist = ist_table[j++];
1972             ist->st = is->streams[k];
1973             ist->file_index = i;
1974             ist->index = k;
1975             ist->discard = 1; /* the stream is discarded by default
1976                                  (changed later) */
1977
1978             if (rate_emu) {
1979                 ist->start = av_gettime();
1980             }
1981         }
1982     }
1983
1984     /* output stream init */
1985     nb_ostreams = 0;
1986     for(i=0;i<nb_output_files;i++) {
1987         os = output_files[i];
1988         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1989             dump_format(output_files[i], i, output_files[i]->filename, 1);
1990             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1991             ret = AVERROR(EINVAL);
1992             goto fail;
1993         }
1994         nb_ostreams += os->nb_streams;
1995     }
1996     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1997         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1998         ret = AVERROR(EINVAL);
1999         goto fail;
2000     }
2001
2002     /* Sanity check the mapping args -- do the input files & streams exist? */
2003     for(i=0;i<nb_stream_maps;i++) {
2004         int fi = stream_maps[i].file_index;
2005         int si = stream_maps[i].stream_index;
2006
2007         if (fi < 0 || fi > nb_input_files - 1 ||
2008             si < 0 || si > file_table[fi].nb_streams - 1) {
2009             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2010             ret = AVERROR(EINVAL);
2011             goto fail;
2012         }
2013         fi = stream_maps[i].sync_file_index;
2014         si = stream_maps[i].sync_stream_index;
2015         if (fi < 0 || fi > nb_input_files - 1 ||
2016             si < 0 || si > file_table[fi].nb_streams - 1) {
2017             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2018             ret = AVERROR(EINVAL);
2019             goto fail;
2020         }
2021     }
2022
2023     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2024     if (!ost_table)
2025         goto fail;
2026     n = 0;
2027     for(k=0;k<nb_output_files;k++) {
2028         os = output_files[k];
2029         for(i=0;i<os->nb_streams;i++,n++) {
2030             int found;
2031             ost = ost_table[n] = output_streams_for_file[k][i];
2032             ost->st = os->streams[i];
2033             if (nb_stream_maps > 0) {
2034                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2035                     stream_maps[n].stream_index;
2036
2037                 /* Sanity check that the stream types match */
2038                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2039                     int i= ost->file_index;
2040                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2041                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2042                         stream_maps[n].file_index, stream_maps[n].stream_index,
2043                         ost->file_index, ost->index);
2044                     ffmpeg_exit(1);
2045                 }
2046
2047             } else {
2048                 int best_nb_frames=-1;
2049                 /* get corresponding input stream index : we select the first one with the right type */
2050                 found = 0;
2051                 for(j=0;j<nb_istreams;j++) {
2052                     int skip=0;
2053                     ist = ist_table[j];
2054                     if(opt_programid){
2055                         int pi,si;
2056                         AVFormatContext *f= input_files[ ist->file_index ];
2057                         skip=1;
2058                         for(pi=0; pi<f->nb_programs; pi++){
2059                             AVProgram *p= f->programs[pi];
2060                             if(p->id == opt_programid)
2061                                 for(si=0; si<p->nb_stream_indexes; si++){
2062                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2063                                         skip=0;
2064                                 }
2065                         }
2066                     }
2067                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2068                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2069                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2070                             best_nb_frames= ist->st->codec_info_nb_frames;
2071                             ost->source_index = j;
2072                             found = 1;
2073                         }
2074                     }
2075                 }
2076
2077                 if (!found) {
2078                     if(! opt_programid) {
2079                         /* try again and reuse existing stream */
2080                         for(j=0;j<nb_istreams;j++) {
2081                             ist = ist_table[j];
2082                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2083                                 && ist->st->discard != AVDISCARD_ALL) {
2084                                 ost->source_index = j;
2085                                 found = 1;
2086                             }
2087                         }
2088                     }
2089                     if (!found) {
2090                         int i= ost->file_index;
2091                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2092                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2093                                 ost->file_index, ost->index);
2094                         ffmpeg_exit(1);
2095                     }
2096                 }
2097             }
2098             ist = ist_table[ost->source_index];
2099             ist->discard = 0;
2100             ost->sync_ist = (nb_stream_maps > 0) ?
2101                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2102                          stream_maps[n].sync_stream_index] : ist;
2103         }
2104     }
2105
2106     /* for each output stream, we compute the right encoding parameters */
2107     for(i=0;i<nb_ostreams;i++) {
2108         AVMetadataTag *t = NULL;
2109         ost = ost_table[i];
2110         os = output_files[ost->file_index];
2111         ist = ist_table[ost->source_index];
2112
2113         codec = ost->st->codec;
2114         icodec = ist->st->codec;
2115
2116         if (metadata_streams_autocopy)
2117             while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2118                 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2119             }
2120
2121         ost->st->disposition = ist->st->disposition;
2122         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2123         codec->chroma_sample_location = icodec->chroma_sample_location;
2124
2125         if (ost->st->stream_copy) {
2126             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2127
2128             if (extra_size > INT_MAX)
2129                 goto fail;
2130
2131             /* if stream_copy is selected, no need to decode or encode */
2132             codec->codec_id = icodec->codec_id;
2133             codec->codec_type = icodec->codec_type;
2134
2135             if(!codec->codec_tag){
2136                 if(   !os->oformat->codec_tag
2137                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2138                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2139                     codec->codec_tag = icodec->codec_tag;
2140             }
2141
2142             codec->bit_rate = icodec->bit_rate;
2143             codec->rc_max_rate    = icodec->rc_max_rate;
2144             codec->rc_buffer_size = icodec->rc_buffer_size;
2145             codec->extradata= av_mallocz(extra_size);
2146             if (!codec->extradata)
2147                 goto fail;
2148             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2149             codec->extradata_size= icodec->extradata_size;
2150             if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2151                 codec->time_base = icodec->time_base;
2152                 codec->time_base.num *= icodec->ticks_per_frame;
2153                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2154                           codec->time_base.num, codec->time_base.den, INT_MAX);
2155             }else
2156                 codec->time_base = ist->st->time_base;
2157             switch(codec->codec_type) {
2158             case AVMEDIA_TYPE_AUDIO:
2159                 if(audio_volume != 256) {
2160                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2161                     ffmpeg_exit(1);
2162                 }
2163                 codec->channel_layout = icodec->channel_layout;
2164                 codec->sample_rate = icodec->sample_rate;
2165                 codec->channels = icodec->channels;
2166                 codec->frame_size = icodec->frame_size;
2167                 codec->block_align= icodec->block_align;
2168                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2169                     codec->block_align= 0;
2170                 if(codec->codec_id == CODEC_ID_AC3)
2171                     codec->block_align= 0;
2172                 break;
2173             case AVMEDIA_TYPE_VIDEO:
2174                 codec->pix_fmt = icodec->pix_fmt;
2175                 codec->width = icodec->width;
2176                 codec->height = icodec->height;
2177                 codec->has_b_frames = icodec->has_b_frames;
2178                 break;
2179             case AVMEDIA_TYPE_SUBTITLE:
2180                 codec->width = icodec->width;
2181                 codec->height = icodec->height;
2182                 break;
2183             default:
2184                 abort();
2185             }
2186         } else {
2187             switch(codec->codec_type) {
2188             case AVMEDIA_TYPE_AUDIO:
2189                 ost->fifo= av_fifo_alloc(1024);
2190                 if(!ost->fifo)
2191                     goto fail;
2192                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2193                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2194                 icodec->request_channels = codec->channels;
2195                 ist->decoding_needed = 1;
2196                 ost->encoding_needed = 1;
2197                 ost->resample_sample_fmt  = icodec->sample_fmt;
2198                 ost->resample_sample_rate = icodec->sample_rate;
2199                 ost->resample_channels    = icodec->channels;
2200                 break;
2201             case AVMEDIA_TYPE_VIDEO:
2202                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2203                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2204                     ffmpeg_exit(1);
2205                 }
2206                 ost->video_resample = (codec->width != icodec->width   ||
2207                                        codec->height != icodec->height ||
2208                         (codec->pix_fmt != icodec->pix_fmt));
2209                 if (ost->video_resample) {
2210 #if !CONFIG_AVFILTER
2211                     avcodec_get_frame_defaults(&ost->pict_tmp);
2212                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2213                                          codec->width, codec->height)) {
2214                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2215                         ffmpeg_exit(1);
2216                     }
2217                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2218                     ost->img_resample_ctx = sws_getContext(
2219                         icodec->width,
2220                         icodec->height,
2221                             icodec->pix_fmt,
2222                             codec->width,
2223                             codec->height,
2224                             codec->pix_fmt,
2225                             sws_flags, NULL, NULL, NULL);
2226                     if (ost->img_resample_ctx == NULL) {
2227                         fprintf(stderr, "Cannot get resampling context\n");
2228                         ffmpeg_exit(1);
2229                     }
2230
2231                     ost->original_height = icodec->height;
2232                     ost->original_width  = icodec->width;
2233 #endif
2234                     codec->bits_per_raw_sample= 0;
2235                 }
2236                 ost->resample_height = icodec->height;
2237                 ost->resample_width  = icodec->width;
2238                 ost->resample_pix_fmt= icodec->pix_fmt;
2239                 ost->encoding_needed = 1;
2240                 ist->decoding_needed = 1;
2241
2242 #if CONFIG_AVFILTER
2243                 if (configure_filters(ist, ost)) {
2244                     fprintf(stderr, "Error opening filters!\n");
2245                     exit(1);
2246                 }
2247 #endif
2248                 break;
2249             case AVMEDIA_TYPE_SUBTITLE:
2250                 ost->encoding_needed = 1;
2251                 ist->decoding_needed = 1;
2252                 break;
2253             default:
2254                 abort();
2255                 break;
2256             }
2257             /* two pass mode */
2258             if (ost->encoding_needed &&
2259                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2260                 char logfilename[1024];
2261                 FILE *f;
2262
2263                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2264                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2265                          i);
2266                 if (codec->flags & CODEC_FLAG_PASS1) {
2267                     f = fopen(logfilename, "wb");
2268                     if (!f) {
2269                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2270                         ffmpeg_exit(1);
2271                     }
2272                     ost->logfile = f;
2273                 } else {
2274                     char  *logbuffer;
2275                     size_t logbuffer_size;
2276                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2277                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2278                         ffmpeg_exit(1);
2279                     }
2280                     codec->stats_in = logbuffer;
2281                 }
2282             }
2283         }
2284         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2285             int size= codec->width * codec->height;
2286             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2287         }
2288     }
2289
2290     if (!bit_buffer)
2291         bit_buffer = av_malloc(bit_buffer_size);
2292     if (!bit_buffer) {
2293         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2294                 bit_buffer_size);
2295         ret = AVERROR(ENOMEM);
2296         goto fail;
2297     }
2298
2299     /* open each encoder */
2300     for(i=0;i<nb_ostreams;i++) {
2301         ost = ost_table[i];
2302         if (ost->encoding_needed) {
2303             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2304             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2305             if (!codec)
2306                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2307             if (!codec) {
2308                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2309                          ost->st->codec->codec_id, ost->file_index, ost->index);
2310                 ret = AVERROR(EINVAL);
2311                 goto dump_format;
2312             }
2313             if (dec->subtitle_header) {
2314                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2315                 if (!ost->st->codec->subtitle_header) {
2316                     ret = AVERROR(ENOMEM);
2317                     goto dump_format;
2318                 }
2319                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2320                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2321             }
2322             if (avcodec_open(ost->st->codec, codec) < 0) {
2323                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2324                         ost->file_index, ost->index);
2325                 ret = AVERROR(EINVAL);
2326                 goto dump_format;
2327             }
2328             extra_size += ost->st->codec->extradata_size;
2329         }
2330     }
2331
2332     /* open each decoder */
2333     for(i=0;i<nb_istreams;i++) {
2334         ist = ist_table[i];
2335         if (ist->decoding_needed) {
2336             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2337             if (!codec)
2338                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2339             if (!codec) {
2340                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2341                         ist->st->codec->codec_id, ist->file_index, ist->index);
2342                 ret = AVERROR(EINVAL);
2343                 goto dump_format;
2344             }
2345             if (avcodec_open(ist->st->codec, codec) < 0) {
2346                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2347                         ist->file_index, ist->index);
2348                 ret = AVERROR(EINVAL);
2349                 goto dump_format;
2350             }
2351             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2352             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2353         }
2354     }
2355
2356     /* init pts */
2357     for(i=0;i<nb_istreams;i++) {
2358         AVStream *st;
2359         ist = ist_table[i];
2360         st= ist->st;
2361         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2362         ist->next_pts = AV_NOPTS_VALUE;
2363         init_pts_correction(&ist->pts_ctx);
2364         ist->is_start = 1;
2365     }
2366
2367     /* set meta data information from input file if required */
2368     for (i=0;i<nb_meta_data_maps;i++) {
2369         AVFormatContext *files[2];
2370         AVMetadata      **meta[2];
2371         AVMetadataTag *mtag;
2372         int j;
2373
2374 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2375         if ((index) < 0 || (index) >= (nb_elems)) {\
2376             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2377                      (desc), (index));\
2378             ret = AVERROR(EINVAL);\
2379             goto dump_format;\
2380         }
2381
2382         int out_file_index = meta_data_maps[i][0].file;
2383         int in_file_index = meta_data_maps[i][1].file;
2384         if (in_file_index < 0 || out_file_index < 0)
2385             continue;
2386         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2387         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2388
2389         files[0] = output_files[out_file_index];
2390         files[1] = input_files[in_file_index];
2391
2392         for (j = 0; j < 2; j++) {
2393             AVMetaDataMap *map = &meta_data_maps[i][j];
2394
2395             switch (map->type) {
2396             case 'g':
2397                 meta[j] = &files[j]->metadata;
2398                 break;
2399             case 's':
2400                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2401                 meta[j] = &files[j]->streams[map->index]->metadata;
2402                 break;
2403             case 'c':
2404                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2405                 meta[j] = &files[j]->chapters[map->index]->metadata;
2406                 break;
2407             case 'p':
2408                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2409                 meta[j] = &files[j]->programs[map->index]->metadata;
2410                 break;
2411             }
2412         }
2413
2414         mtag=NULL;
2415         while((mtag=av_metadata_get(*meta[1], "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2416             av_metadata_set2(meta[0], mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2417     }
2418
2419     /* copy global metadata by default */
2420     if (metadata_global_autocopy) {
2421         AVMetadataTag *t = NULL;
2422
2423         while ((t = av_metadata_get(input_files[0]->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
2424             for (i = 0; i < nb_output_files; i++)
2425                 av_metadata_set2(&output_files[i]->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2426     }
2427
2428     /* copy chapters according to chapter maps */
2429     for (i = 0; i < nb_chapter_maps; i++) {
2430         int infile  = chapter_maps[i].in_file;
2431         int outfile = chapter_maps[i].out_file;
2432
2433         if (infile < 0 || outfile < 0)
2434             continue;
2435         if (infile >= nb_input_files) {
2436             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2437             ret = AVERROR(EINVAL);
2438             goto dump_format;
2439         }
2440         if (outfile >= nb_output_files) {
2441             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2442             ret = AVERROR(EINVAL);
2443             goto dump_format;
2444         }
2445         copy_chapters(infile, outfile);
2446     }
2447
2448     /* copy chapters from the first input file that has them*/
2449     if (!nb_chapter_maps)
2450         for (i = 0; i < nb_input_files; i++) {
2451             if (!input_files[i]->nb_chapters)
2452                 continue;
2453
2454             for (j = 0; j < nb_output_files; j++)
2455                 if ((ret = copy_chapters(i, j)) < 0)
2456                     goto dump_format;
2457             break;
2458         }
2459
2460     /* open files and write file headers */
2461     for(i=0;i<nb_output_files;i++) {
2462         os = output_files[i];
2463         if (av_write_header(os) < 0) {
2464             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2465             ret = AVERROR(EINVAL);
2466             goto dump_format;
2467         }
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         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                     ist_table[ost->source_index]->file_index,
2487                     ist_table[ost->source_index]->index,
2488                     ost->file_index,
2489                     ost->index);
2490             if (ost->sync_ist != ist_table[ost->source_index])
2491                 fprintf(stderr, " [sync #%d.%d]",
2492                         ost->sync_ist->file_index,
2493                         ost->sync_ist->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 (!using_stdin && verbose >= 0) {
2508         fprintf(stderr, "Press [q] to stop encoding\n");
2509         url_set_interrupt_cb(decode_interrupt_cb);
2510     }
2511     term_init();
2512
2513     timer_start = av_gettime();
2514
2515     for(; received_sigterm == 0;) {
2516         int file_index, ist_index;
2517         AVPacket pkt;
2518         double ipts_min;
2519         double opts_min;
2520
2521     redo:
2522         ipts_min= 1e100;
2523         opts_min= 1e100;
2524         /* if 'q' pressed, exits */
2525         if (!using_stdin) {
2526             if (q_pressed)
2527                 break;
2528             /* read_key() returns 0 on EOF */
2529             key = read_key();
2530             if (key == 'q')
2531                 break;
2532         }
2533
2534         /* select the stream that we must read now by looking at the
2535            smallest output pts */
2536         file_index = -1;
2537         for(i=0;i<nb_ostreams;i++) {
2538             double ipts, opts;
2539             ost = ost_table[i];
2540             os = output_files[ost->file_index];
2541             ist = ist_table[ost->source_index];
2542             if(ist->is_past_recording_time || no_packet[ist->file_index])
2543                 continue;
2544                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2545             ipts = (double)ist->pts;
2546             if (!file_table[ist->file_index].eof_reached){
2547                 if(ipts < ipts_min) {
2548                     ipts_min = ipts;
2549                     if(input_sync ) file_index = ist->file_index;
2550                 }
2551                 if(opts < opts_min) {
2552                     opts_min = opts;
2553                     if(!input_sync) file_index = ist->file_index;
2554                 }
2555             }
2556             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2557                 file_index= -1;
2558                 break;
2559             }
2560         }
2561         /* if none, if is finished */
2562         if (file_index < 0) {
2563             if(no_packet_count){
2564                 no_packet_count=0;
2565                 memset(no_packet, 0, sizeof(no_packet));
2566                 usleep(10000);
2567                 continue;
2568             }
2569             break;
2570         }
2571
2572         /* finish if limit size exhausted */
2573         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2574             break;
2575
2576         /* read a frame from it and output it in the fifo */
2577         is = input_files[file_index];
2578         ret= av_read_frame(is, &pkt);
2579         if(ret == AVERROR(EAGAIN)){
2580             no_packet[file_index]=1;
2581             no_packet_count++;
2582             continue;
2583         }
2584         if (ret < 0) {
2585             file_table[file_index].eof_reached = 1;
2586             if (opt_shortest)
2587                 break;
2588             else
2589                 continue;
2590         }
2591
2592         no_packet_count=0;
2593         memset(no_packet, 0, sizeof(no_packet));
2594
2595         if (do_pkt_dump) {
2596             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2597         }
2598         /* the following test is needed in case new streams appear
2599            dynamically in stream : we ignore them */
2600         if (pkt.stream_index >= file_table[file_index].nb_streams)
2601             goto discard_packet;
2602         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2603         ist = ist_table[ist_index];
2604         if (ist->discard)
2605             goto discard_packet;
2606
2607         if (pkt.dts != AV_NOPTS_VALUE)
2608             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2609         if (pkt.pts != AV_NOPTS_VALUE)
2610             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2611
2612         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2613             && input_files_ts_scale[file_index][pkt.stream_index]){
2614             if(pkt.pts != AV_NOPTS_VALUE)
2615                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2616             if(pkt.dts != AV_NOPTS_VALUE)
2617                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2618         }
2619
2620 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2621         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2622             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2623             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2624             int64_t delta= pkt_dts - ist->next_pts;
2625             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2626                 input_files_ts_offset[ist->file_index]-= delta;
2627                 if (verbose > 2)
2628                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2629                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2630                 if(pkt.pts != AV_NOPTS_VALUE)
2631                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2632             }
2633         }
2634
2635         /* finish if recording time exhausted */
2636         if (recording_time != INT64_MAX &&
2637             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2638             ist->is_past_recording_time = 1;
2639             goto discard_packet;
2640         }
2641
2642         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2643         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2644
2645             if (verbose >= 0)
2646                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2647                         ist->file_index, ist->index);
2648             if (exit_on_error)
2649                 ffmpeg_exit(1);
2650             av_free_packet(&pkt);
2651             goto redo;
2652         }
2653
2654     discard_packet:
2655         av_free_packet(&pkt);
2656
2657         /* dump report by using the output first video and audio streams */
2658         print_report(output_files, ost_table, nb_ostreams, 0);
2659     }
2660
2661     /* at the end of stream, we must flush the decoder buffers */
2662     for(i=0;i<nb_istreams;i++) {
2663         ist = ist_table[i];
2664         if (ist->decoding_needed) {
2665             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2666         }
2667     }
2668
2669     term_exit();
2670
2671     /* write the trailer if needed and close file */
2672     for(i=0;i<nb_output_files;i++) {
2673         os = output_files[i];
2674         av_write_trailer(os);
2675     }
2676
2677     /* dump report by using the first video and audio streams */
2678     print_report(output_files, ost_table, nb_ostreams, 1);
2679
2680     /* close each encoder */
2681     for(i=0;i<nb_ostreams;i++) {
2682         ost = ost_table[i];
2683         if (ost->encoding_needed) {
2684             av_freep(&ost->st->codec->stats_in);
2685             avcodec_close(ost->st->codec);
2686         }
2687     }
2688
2689     /* close each decoder */
2690     for(i=0;i<nb_istreams;i++) {
2691         ist = ist_table[i];
2692         if (ist->decoding_needed) {
2693             avcodec_close(ist->st->codec);
2694         }
2695     }
2696 #if CONFIG_AVFILTER
2697     if (graph) {
2698         avfilter_graph_free(graph);
2699         av_freep(&graph);
2700     }
2701 #endif
2702
2703     /* finished ! */
2704     ret = 0;
2705
2706  fail:
2707     av_freep(&bit_buffer);
2708     av_free(file_table);
2709
2710     if (ist_table) {
2711         for(i=0;i<nb_istreams;i++) {
2712             ist = ist_table[i];
2713             av_free(ist);
2714         }
2715         av_free(ist_table);
2716     }
2717     if (ost_table) {
2718         for(i=0;i<nb_ostreams;i++) {
2719             ost = ost_table[i];
2720             if (ost) {
2721                 if (ost->st->stream_copy)
2722                     av_freep(&ost->st->codec->extradata);
2723                 if (ost->logfile) {
2724                     fclose(ost->logfile);
2725                     ost->logfile = NULL;
2726                 }
2727                 av_fifo_free(ost->fifo); /* works even if fifo is not
2728                                              initialized but set to zero */
2729                 av_freep(&ost->st->codec->subtitle_header);
2730                 av_free(ost->pict_tmp.data[0]);
2731                 av_free(ost->forced_kf_pts);
2732                 if (ost->video_resample)
2733                     sws_freeContext(ost->img_resample_ctx);
2734                 if (ost->resample)
2735                     audio_resample_close(ost->resample);
2736                 if (ost->reformat_ctx)
2737                     av_audio_convert_free(ost->reformat_ctx);
2738                 av_free(ost);
2739             }
2740         }
2741         av_free(ost_table);
2742     }
2743     return ret;
2744 }
2745
2746 static void opt_format(const char *arg)
2747 {
2748     last_asked_format = arg;
2749 }
2750
2751 static void opt_video_rc_override_string(const char *arg)
2752 {
2753     video_rc_override_string = arg;
2754 }
2755
2756 static int opt_me_threshold(const char *opt, const char *arg)
2757 {
2758     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2759     return 0;
2760 }
2761
2762 static int opt_verbose(const char *opt, const char *arg)
2763 {
2764     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2765     return 0;
2766 }
2767
2768 static int opt_frame_rate(const char *opt, const char *arg)
2769 {
2770     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2771         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2772         ffmpeg_exit(1);
2773     }
2774     return 0;
2775 }
2776
2777 static int opt_bitrate(const char *opt, const char *arg)
2778 {
2779     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2780
2781     opt_default(opt, arg);
2782
2783     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2784         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2785
2786     return 0;
2787 }
2788
2789 static int opt_frame_crop(const char *opt, const char *arg)
2790 {
2791     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2792     return AVERROR(EINVAL);
2793 }
2794
2795 static void opt_frame_size(const char *arg)
2796 {
2797     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2798         fprintf(stderr, "Incorrect frame size\n");
2799         ffmpeg_exit(1);
2800     }
2801 }
2802
2803 static int opt_pad(const char *opt, const char *arg) {
2804     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2805     return -1;
2806 }
2807
2808 static void opt_frame_pix_fmt(const char *arg)
2809 {
2810     if (strcmp(arg, "list")) {
2811         frame_pix_fmt = av_get_pix_fmt(arg);
2812         if (frame_pix_fmt == PIX_FMT_NONE) {
2813             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2814             ffmpeg_exit(1);
2815         }
2816     } else {
2817         show_pix_fmts();
2818         ffmpeg_exit(0);
2819     }
2820 }
2821
2822 static void opt_frame_aspect_ratio(const char *arg)
2823 {
2824     int x = 0, y = 0;
2825     double ar = 0;
2826     const char *p;
2827     char *end;
2828
2829     p = strchr(arg, ':');
2830     if (p) {
2831         x = strtol(arg, &end, 10);
2832         if (end == p)
2833             y = strtol(end+1, &end, 10);
2834         if (x > 0 && y > 0)
2835             ar = (double)x / (double)y;
2836     } else
2837         ar = strtod(arg, NULL);
2838
2839     if (!ar) {
2840         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2841         ffmpeg_exit(1);
2842     }
2843     frame_aspect_ratio = ar;
2844 }
2845
2846 static int opt_metadata(const char *opt, const char *arg)
2847 {
2848     char *mid= strchr(arg, '=');
2849
2850     if(!mid){
2851         fprintf(stderr, "Missing =\n");
2852         ffmpeg_exit(1);
2853     }
2854     *mid++= 0;
2855
2856     av_metadata_set2(&metadata, arg, mid, 0);
2857
2858     return 0;
2859 }
2860
2861 static void opt_qscale(const char *arg)
2862 {
2863     video_qscale = atof(arg);
2864     if (video_qscale <= 0 ||
2865         video_qscale > 255) {
2866         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2867         ffmpeg_exit(1);
2868     }
2869 }
2870
2871 static void opt_top_field_first(const char *arg)
2872 {
2873     top_field_first= atoi(arg);
2874 }
2875
2876 static int opt_thread_count(const char *opt, const char *arg)
2877 {
2878     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2879 #if !HAVE_THREADS
2880     if (verbose >= 0)
2881         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2882 #endif
2883     return 0;
2884 }
2885
2886 static void opt_audio_sample_fmt(const char *arg)
2887 {
2888     if (strcmp(arg, "list"))
2889         audio_sample_fmt = av_get_sample_fmt(arg);
2890     else {
2891         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2892         ffmpeg_exit(0);
2893     }
2894 }
2895
2896 static int opt_audio_rate(const char *opt, const char *arg)
2897 {
2898     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2899     return 0;
2900 }
2901
2902 static int opt_audio_channels(const char *opt, const char *arg)
2903 {
2904     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905     return 0;
2906 }
2907
2908 static void opt_video_channel(const char *arg)
2909 {
2910     video_channel = strtol(arg, NULL, 0);
2911 }
2912
2913 static void opt_video_standard(const char *arg)
2914 {
2915     video_standard = av_strdup(arg);
2916 }
2917
2918 static void opt_codec(int *pstream_copy, char **pcodec_name,
2919                       int codec_type, const char *arg)
2920 {
2921     av_freep(pcodec_name);
2922     if (!strcmp(arg, "copy")) {
2923         *pstream_copy = 1;
2924     } else {
2925         *pcodec_name = av_strdup(arg);
2926     }
2927 }
2928
2929 static void opt_audio_codec(const char *arg)
2930 {
2931     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2932 }
2933
2934 static void opt_video_codec(const char *arg)
2935 {
2936     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2937 }
2938
2939 static void opt_subtitle_codec(const char *arg)
2940 {
2941     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2942 }
2943
2944 static int opt_codec_tag(const char *opt, const char *arg)
2945 {
2946     char *tail;
2947     uint32_t *codec_tag;
2948
2949     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2950                 !strcmp(opt, "vtag") ? &video_codec_tag :
2951                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2952     if (!codec_tag)
2953         return -1;
2954
2955     *codec_tag = strtol(arg, &tail, 0);
2956     if (!tail || *tail)
2957         *codec_tag = AV_RL32(arg);
2958
2959     return 0;
2960 }
2961
2962 static void opt_map(const char *arg)
2963 {
2964     AVStreamMap *m;
2965     char *p;
2966
2967     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2968     m = &stream_maps[nb_stream_maps-1];
2969
2970     m->file_index = strtol(arg, &p, 0);
2971     if (*p)
2972         p++;
2973
2974     m->stream_index = strtol(p, &p, 0);
2975     if (*p) {
2976         p++;
2977         m->sync_file_index = strtol(p, &p, 0);
2978         if (*p)
2979             p++;
2980         m->sync_stream_index = strtol(p, &p, 0);
2981     } else {
2982         m->sync_file_index = m->file_index;
2983         m->sync_stream_index = m->stream_index;
2984     }
2985 }
2986
2987 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2988 {
2989     *endptr = arg;
2990     if (*arg == ',') {
2991         *type = *(++arg);
2992         switch (*arg) {
2993         case 'g':
2994             break;
2995         case 's':
2996         case 'c':
2997         case 'p':
2998             *index = strtol(++arg, endptr, 0);
2999             break;
3000         default:
3001             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3002             ffmpeg_exit(1);
3003         }
3004     } else
3005         *type = 'g';
3006 }
3007
3008 static void opt_map_meta_data(const char *arg)
3009 {
3010     AVMetaDataMap *m, *m1;
3011     char *p;
3012
3013     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3014                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3015
3016     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3017     m->file = strtol(arg, &p, 0);
3018     parse_meta_type(p, &m->type, &m->index, &p);
3019     if (*p)
3020         p++;
3021
3022     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3023     m1->file = strtol(p, &p, 0);
3024     parse_meta_type(p, &m1->type, &m1->index, &p);
3025
3026     if (m->type == 'g' || m1->type == 'g')
3027         metadata_global_autocopy = 0;
3028     if (m->type == 's' || m1->type == 's')
3029         metadata_streams_autocopy = 0;
3030     if (m->type == 'c' || m1->type == 'c')
3031         metadata_chapters_autocopy = 0;
3032 }
3033
3034 static void opt_map_chapters(const char *arg)
3035 {
3036     AVChapterMap *c;
3037     char *p;
3038
3039     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3040                               nb_chapter_maps + 1);
3041     c = &chapter_maps[nb_chapter_maps - 1];
3042     c->out_file = strtol(arg, &p, 0);
3043     if (*p)
3044         p++;
3045
3046     c->in_file = strtol(p, &p, 0);
3047 }
3048
3049 static void opt_input_ts_scale(const char *arg)
3050 {
3051     unsigned int stream;
3052     double scale;
3053     char *p;
3054
3055     stream = strtol(arg, &p, 0);
3056     if (*p)
3057         p++;
3058     scale= strtod(p, &p);
3059
3060     if(stream >= MAX_STREAMS)
3061         ffmpeg_exit(1);
3062
3063     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3064     input_files_ts_scale[nb_input_files][stream]= scale;
3065 }
3066
3067 static int opt_recording_time(const char *opt, const char *arg)
3068 {
3069     recording_time = parse_time_or_die(opt, arg, 1);
3070     return 0;
3071 }
3072
3073 static int opt_start_time(const char *opt, const char *arg)
3074 {
3075     start_time = parse_time_or_die(opt, arg, 1);
3076     return 0;
3077 }
3078
3079 static int opt_recording_timestamp(const char *opt, const char *arg)
3080 {
3081     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3082     return 0;
3083 }
3084
3085 static int opt_input_ts_offset(const char *opt, const char *arg)
3086 {
3087     input_ts_offset = parse_time_or_die(opt, arg, 1);
3088     return 0;
3089 }
3090
3091 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3092 {
3093     const char *codec_string = encoder ? "encoder" : "decoder";
3094     AVCodec *codec;
3095
3096     if(!name)
3097         return CODEC_ID_NONE;
3098     codec = encoder ?
3099         avcodec_find_encoder_by_name(name) :
3100         avcodec_find_decoder_by_name(name);
3101     if(!codec) {
3102         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3103         ffmpeg_exit(1);
3104     }
3105     if(codec->type != type) {
3106         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3107         ffmpeg_exit(1);
3108     }
3109     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3110        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3111         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3112                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3113                 codec_string, codec->name);
3114         codec = encoder ?
3115             avcodec_find_encoder(codec->id) :
3116             avcodec_find_decoder(codec->id);
3117         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3118             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3119                     codec_string, codec->name);
3120         ffmpeg_exit(1);
3121     }
3122     return codec->id;
3123 }
3124
3125 static void opt_input_file(const char *filename)
3126 {
3127     AVFormatContext *ic;
3128     AVFormatParameters params, *ap = &params;
3129     AVInputFormat *file_iformat = NULL;
3130     int err, i, ret, rfps, rfps_base;
3131     int64_t timestamp;
3132
3133     if (last_asked_format) {
3134         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3135             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3136             ffmpeg_exit(1);
3137         }
3138         last_asked_format = NULL;
3139     }
3140
3141     if (!strcmp(filename, "-"))
3142         filename = "pipe:";
3143
3144     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3145                     !strcmp(filename, "/dev/stdin");
3146
3147     /* get default parameters from command line */
3148     ic = avformat_alloc_context();
3149     if (!ic) {
3150         print_error(filename, AVERROR(ENOMEM));
3151         ffmpeg_exit(1);
3152     }
3153
3154     memset(ap, 0, sizeof(*ap));
3155     ap->prealloced_context = 1;
3156     ap->sample_rate = audio_sample_rate;
3157     ap->channels = audio_channels;
3158     ap->time_base.den = frame_rate.num;
3159     ap->time_base.num = frame_rate.den;
3160     ap->width = frame_width;
3161     ap->height = frame_height;
3162     ap->pix_fmt = frame_pix_fmt;
3163    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3164     ap->channel = video_channel;
3165     ap->standard = video_standard;
3166
3167     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3168
3169     ic->video_codec_id   =
3170         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3171                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3172     ic->audio_codec_id   =
3173         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3174                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3175     ic->subtitle_codec_id=
3176         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3177                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3178     ic->flags |= AVFMT_FLAG_NONBLOCK;
3179
3180     /* open the input file with generic libav function */
3181     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3182     if (err < 0) {
3183         print_error(filename, err);
3184         ffmpeg_exit(1);
3185     }
3186     if(opt_programid) {
3187         int i, j;
3188         int found=0;
3189         for(i=0; i<ic->nb_streams; i++){
3190             ic->streams[i]->discard= AVDISCARD_ALL;
3191         }
3192         for(i=0; i<ic->nb_programs; i++){
3193             AVProgram *p= ic->programs[i];
3194             if(p->id != opt_programid){
3195                 p->discard = AVDISCARD_ALL;
3196             }else{
3197                 found=1;
3198                 for(j=0; j<p->nb_stream_indexes; j++){
3199                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3200                 }
3201             }
3202         }
3203         if(!found){
3204             fprintf(stderr, "Specified program id not found\n");
3205             ffmpeg_exit(1);
3206         }
3207         opt_programid=0;
3208     }
3209
3210     ic->loop_input = loop_input;
3211
3212     /* If not enough info to get the stream parameters, we decode the
3213        first frames to get it. (used in mpeg case for example) */
3214     ret = av_find_stream_info(ic);
3215     if (ret < 0 && verbose >= 0) {
3216         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3217         av_close_input_file(ic);
3218         ffmpeg_exit(1);
3219     }
3220
3221     timestamp = start_time;
3222     /* add the stream start time */
3223     if (ic->start_time != AV_NOPTS_VALUE)
3224         timestamp += ic->start_time;
3225
3226     /* if seeking requested, we execute it */
3227     if (start_time != 0) {
3228         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3229         if (ret < 0) {
3230             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3231                     filename, (double)timestamp / AV_TIME_BASE);
3232         }
3233         /* reset seek info */
3234         start_time = 0;
3235     }
3236
3237     /* update the current parameters so that they match the one of the input stream */
3238     for(i=0;i<ic->nb_streams;i++) {
3239         AVStream *st = ic->streams[i];
3240         AVCodecContext *dec = st->codec;
3241         avcodec_thread_init(dec, thread_count);
3242         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3243         switch (dec->codec_type) {
3244         case AVMEDIA_TYPE_AUDIO:
3245             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3246             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3247             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3248             channel_layout    = dec->channel_layout;
3249             audio_channels    = dec->channels;
3250             audio_sample_rate = dec->sample_rate;
3251             audio_sample_fmt  = dec->sample_fmt;
3252             if(audio_disable)
3253                 st->discard= AVDISCARD_ALL;
3254             /* Note that av_find_stream_info can add more streams, and we
3255              * currently have no chance of setting up lowres decoding
3256              * early enough for them. */
3257             if (dec->lowres)
3258                 audio_sample_rate >>= dec->lowres;
3259             break;
3260         case AVMEDIA_TYPE_VIDEO:
3261             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3262             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3263             frame_height = dec->height;
3264             frame_width  = dec->width;
3265             if(ic->streams[i]->sample_aspect_ratio.num)
3266                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3267             else
3268                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3269             frame_aspect_ratio *= (float) dec->width / dec->height;
3270             frame_pix_fmt = dec->pix_fmt;
3271             rfps      = ic->streams[i]->r_frame_rate.num;
3272             rfps_base = ic->streams[i]->r_frame_rate.den;
3273             if (dec->lowres) {
3274                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3275                 frame_height >>= dec->lowres;
3276                 frame_width  >>= dec->lowres;
3277                 dec->height = frame_height;
3278                 dec->width  = frame_width;
3279             }
3280             if(me_threshold)
3281                 dec->debug |= FF_DEBUG_MV;
3282
3283             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3284
3285                 if (verbose >= 0)
3286                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3287                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3288
3289                     (float)rfps / rfps_base, rfps, rfps_base);
3290             }
3291             /* update the current frame rate to match the stream frame rate */
3292             frame_rate.num = rfps;
3293             frame_rate.den = rfps_base;
3294
3295             if(video_disable)
3296                 st->discard= AVDISCARD_ALL;
3297             else if(video_discard)
3298                 st->discard= video_discard;
3299             break;
3300         case AVMEDIA_TYPE_DATA:
3301             break;
3302         case AVMEDIA_TYPE_SUBTITLE:
3303             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3304             if(subtitle_disable)
3305                 st->discard = AVDISCARD_ALL;
3306             break;
3307         case AVMEDIA_TYPE_ATTACHMENT:
3308         case AVMEDIA_TYPE_UNKNOWN:
3309             break;
3310         default:
3311             abort();
3312         }
3313     }
3314
3315     input_files[nb_input_files] = ic;
3316     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3317     /* dump the file content */
3318     if (verbose >= 0)
3319         dump_format(ic, nb_input_files, filename, 0);
3320
3321     nb_input_files++;
3322
3323     video_channel = 0;
3324
3325     av_freep(&video_codec_name);
3326     av_freep(&audio_codec_name);
3327     av_freep(&subtitle_codec_name);
3328 }
3329
3330 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3331                                          int *has_subtitle_ptr)
3332 {
3333     int has_video, has_audio, has_subtitle, i, j;
3334     AVFormatContext *ic;
3335
3336     has_video = 0;
3337     has_audio = 0;
3338     has_subtitle = 0;
3339     for(j=0;j<nb_input_files;j++) {
3340         ic = input_files[j];
3341         for(i=0;i<ic->nb_streams;i++) {
3342             AVCodecContext *enc = ic->streams[i]->codec;
3343             switch(enc->codec_type) {
3344             case AVMEDIA_TYPE_AUDIO:
3345                 has_audio = 1;
3346                 break;
3347             case AVMEDIA_TYPE_VIDEO:
3348                 has_video = 1;
3349                 break;
3350             case AVMEDIA_TYPE_SUBTITLE:
3351                 has_subtitle = 1;
3352                 break;
3353             case AVMEDIA_TYPE_DATA:
3354             case AVMEDIA_TYPE_ATTACHMENT:
3355             case AVMEDIA_TYPE_UNKNOWN:
3356                 break;
3357             default:
3358                 abort();
3359             }
3360         }
3361     }
3362     *has_video_ptr = has_video;
3363     *has_audio_ptr = has_audio;
3364     *has_subtitle_ptr = has_subtitle;
3365 }
3366
3367 static void new_video_stream(AVFormatContext *oc, int file_idx)
3368 {
3369     AVStream *st;
3370     AVOutputStream *ost;
3371     AVCodecContext *video_enc;
3372     enum CodecID codec_id = CODEC_ID_NONE;
3373     AVCodec *codec= NULL;
3374
3375     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3376     if (!st) {
3377         fprintf(stderr, "Could not alloc stream\n");
3378         ffmpeg_exit(1);
3379     }
3380     ost = new_output_stream(oc, file_idx);
3381
3382     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3383     if(!video_stream_copy){
3384         if (video_codec_name) {
3385             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3386                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3387             codec = avcodec_find_encoder_by_name(video_codec_name);
3388             output_codecs[nb_output_codecs-1] = codec;
3389         } else {
3390             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3391             codec = avcodec_find_encoder(codec_id);
3392         }
3393     }
3394
3395     avcodec_get_context_defaults3(st->codec, codec);
3396     ost->bitstream_filters = video_bitstream_filters;
3397     video_bitstream_filters= NULL;
3398
3399     avcodec_thread_init(st->codec, thread_count);
3400
3401     video_enc = st->codec;
3402
3403     if(video_codec_tag)
3404         video_enc->codec_tag= video_codec_tag;
3405
3406     if(   (video_global_header&1)
3407        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3408         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3409         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3410     }
3411     if(video_global_header&2){
3412         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3413         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3414     }
3415
3416     if (video_stream_copy) {
3417         st->stream_copy = 1;
3418         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3419         video_enc->sample_aspect_ratio =
3420         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3421     } else {
3422         const char *p;
3423         int i;
3424         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3425
3426         video_enc->codec_id = codec_id;
3427         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3428
3429         if (codec && codec->supported_framerates && !force_fps)
3430             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3431         video_enc->time_base.den = fps.num;
3432         video_enc->time_base.num = fps.den;
3433
3434         video_enc->width = frame_width;
3435         video_enc->height = frame_height;
3436         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3437         video_enc->pix_fmt = frame_pix_fmt;
3438         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3439
3440         choose_pixel_fmt(st, codec);
3441
3442         if (intra_only)
3443             video_enc->gop_size = 0;
3444         if (video_qscale || same_quality) {
3445             video_enc->flags |= CODEC_FLAG_QSCALE;
3446             video_enc->global_quality=
3447                 st->quality = FF_QP2LAMBDA * video_qscale;
3448         }
3449
3450         if(intra_matrix)
3451             video_enc->intra_matrix = intra_matrix;
3452         if(inter_matrix)
3453             video_enc->inter_matrix = inter_matrix;
3454
3455         p= video_rc_override_string;
3456         for(i=0; p; i++){
3457             int start, end, q;
3458             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3459             if(e!=3){
3460                 fprintf(stderr, "error parsing rc_override\n");
3461                 ffmpeg_exit(1);
3462             }
3463             video_enc->rc_override=
3464                 av_realloc(video_enc->rc_override,
3465                            sizeof(RcOverride)*(i+1));
3466             video_enc->rc_override[i].start_frame= start;
3467             video_enc->rc_override[i].end_frame  = end;
3468             if(q>0){
3469                 video_enc->rc_override[i].qscale= q;
3470                 video_enc->rc_override[i].quality_factor= 1.0;
3471             }
3472             else{
3473                 video_enc->rc_override[i].qscale= 0;
3474                 video_enc->rc_override[i].quality_factor= -q/100.0;
3475             }
3476             p= strchr(p, '/');
3477             if(p) p++;
3478         }
3479         video_enc->rc_override_count=i;
3480         if (!video_enc->rc_initial_buffer_occupancy)
3481             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3482         video_enc->me_threshold= me_threshold;
3483         video_enc->intra_dc_precision= intra_dc_precision - 8;
3484
3485         if (do_psnr)
3486             video_enc->flags|= CODEC_FLAG_PSNR;
3487
3488         /* two pass mode */
3489         if (do_pass) {
3490             if (do_pass == 1) {
3491                 video_enc->flags |= CODEC_FLAG_PASS1;
3492             } else {
3493                 video_enc->flags |= CODEC_FLAG_PASS2;
3494             }
3495         }
3496
3497         if (forced_key_frames)
3498             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3499     }
3500     if (video_language) {
3501         av_metadata_set2(&st->metadata, "language", video_language, 0);
3502         av_freep(&video_language);
3503     }
3504
3505     /* reset some key parameters */
3506     video_disable = 0;
3507     av_freep(&video_codec_name);
3508     av_freep(&forced_key_frames);
3509     video_stream_copy = 0;
3510     frame_pix_fmt = PIX_FMT_NONE;
3511 }
3512
3513 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3514 {
3515     AVStream *st;
3516     AVOutputStream *ost;
3517     AVCodec *codec= NULL;
3518     AVCodecContext *audio_enc;
3519     enum CodecID codec_id = CODEC_ID_NONE;
3520
3521     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3522     if (!st) {
3523         fprintf(stderr, "Could not alloc stream\n");
3524         ffmpeg_exit(1);
3525     }
3526     ost = new_output_stream(oc, file_idx);
3527
3528     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3529     if(!audio_stream_copy){
3530         if (audio_codec_name) {
3531             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3532                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3533             codec = avcodec_find_encoder_by_name(audio_codec_name);
3534             output_codecs[nb_output_codecs-1] = codec;
3535         } else {
3536             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3537             codec = avcodec_find_encoder(codec_id);
3538         }
3539     }
3540
3541     avcodec_get_context_defaults3(st->codec, codec);
3542
3543     ost->bitstream_filters = audio_bitstream_filters;
3544     audio_bitstream_filters= NULL;
3545
3546     avcodec_thread_init(st->codec, thread_count);
3547
3548     audio_enc = st->codec;
3549     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3550
3551     if(audio_codec_tag)
3552         audio_enc->codec_tag= audio_codec_tag;
3553
3554     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3555         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3556         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3557     }
3558     if (audio_stream_copy) {
3559         st->stream_copy = 1;
3560         audio_enc->channels = audio_channels;
3561         audio_enc->sample_rate = audio_sample_rate;
3562     } else {
3563         audio_enc->codec_id = codec_id;
3564         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3565
3566         if (audio_qscale > QSCALE_NONE) {
3567             audio_enc->flags |= CODEC_FLAG_QSCALE;
3568             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3569         }
3570         audio_enc->channels = audio_channels;
3571         audio_enc->sample_fmt = audio_sample_fmt;
3572         audio_enc->sample_rate = audio_sample_rate;
3573         audio_enc->channel_layout = channel_layout;
3574         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3575             audio_enc->channel_layout = 0;
3576         choose_sample_fmt(st, codec);
3577         choose_sample_rate(st, codec);
3578     }
3579     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3580     if (audio_language) {
3581         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3582         av_freep(&audio_language);
3583     }
3584
3585     /* reset some key parameters */
3586     audio_disable = 0;
3587     av_freep(&audio_codec_name);
3588     audio_stream_copy = 0;
3589 }
3590
3591 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3592 {
3593     AVStream *st;
3594     AVOutputStream *ost;
3595     AVCodec *codec=NULL;
3596     AVCodecContext *subtitle_enc;
3597     enum CodecID codec_id = CODEC_ID_NONE;
3598
3599     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3600     if (!st) {
3601         fprintf(stderr, "Could not alloc stream\n");
3602         ffmpeg_exit(1);
3603     }
3604     ost = new_output_stream(oc, file_idx);
3605     subtitle_enc = st->codec;
3606     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3607     if(!subtitle_stream_copy){
3608         if (subtitle_codec_name) {
3609             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3610                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3611             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3612         } else {
3613             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3614             codec = avcodec_find_encoder(codec_id);
3615         }
3616     }
3617     avcodec_get_context_defaults3(st->codec, codec);
3618
3619     ost->bitstream_filters = subtitle_bitstream_filters;
3620     subtitle_bitstream_filters= NULL;
3621
3622     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3623
3624     if(subtitle_codec_tag)
3625         subtitle_enc->codec_tag= subtitle_codec_tag;
3626
3627     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3628         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3629         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3630     }
3631     if (subtitle_stream_copy) {
3632         st->stream_copy = 1;
3633     } else {
3634         subtitle_enc->codec_id = codec_id;
3635         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3636     }
3637
3638     if (subtitle_language) {
3639         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3640         av_freep(&subtitle_language);
3641     }
3642
3643     subtitle_disable = 0;
3644     av_freep(&subtitle_codec_name);
3645     subtitle_stream_copy = 0;
3646 }
3647
3648 static int opt_new_stream(const char *opt, const char *arg)
3649 {
3650     AVFormatContext *oc;
3651     int file_idx = nb_output_files - 1;
3652     if (nb_output_files <= 0) {
3653         fprintf(stderr, "At least one output file must be specified\n");
3654         ffmpeg_exit(1);
3655     }
3656     oc = output_files[file_idx];
3657
3658     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3659     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3660     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3661     else av_assert0(0);
3662     return 0;
3663 }
3664
3665 /* arg format is "output-stream-index:streamid-value". */
3666 static int opt_streamid(const char *opt, const char *arg)
3667 {
3668     int idx;
3669     char *p;
3670     char idx_str[16];
3671
3672     strncpy(idx_str, arg, sizeof(idx_str));
3673     idx_str[sizeof(idx_str)-1] = '\0';
3674     p = strchr(idx_str, ':');
3675     if (!p) {
3676         fprintf(stderr,
3677