cosmetics: vertical alignment and line wrap
[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 copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static unsigned int sws_flags = SWS_BICUBIC;
249
250 static int64_t timer_start;
251
252 static uint8_t *audio_buf;
253 static uint8_t *audio_out;
254 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
255
256 static short *samples;
257
258 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
261
262 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
263
264 struct AVInputStream;
265
266 typedef struct AVOutputStream {
267     int file_index;          /* file index */
268     int index;               /* stream index in the output file */
269     int source_index;        /* AVInputStream index */
270     AVStream *st;            /* stream in the output file */
271     int encoding_needed;     /* true if encoding needed for this stream */
272     int frame_number;
273     /* input pts and corresponding output pts
274        for A/V sync */
275     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
276     struct AVInputStream *sync_ist; /* input stream to sync against */
277     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
278     AVBitStreamFilterContext *bitstream_filters;
279     /* video only */
280     int video_resample;
281     AVFrame pict_tmp;      /* temporary image for resampling */
282     struct SwsContext *img_resample_ctx; /* for image resampling */
283     int resample_height;
284     int resample_width;
285     int resample_pix_fmt;
286
287     /* full frame size of first frame */
288     int original_height;
289     int original_width;
290
291     /* forced key frames */
292     int64_t *forced_kf_pts;
293     int forced_kf_count;
294     int forced_kf_index;
295
296     /* audio only */
297     int audio_resample;
298     ReSampleContext *resample; /* for audio resampling */
299     int resample_sample_fmt;
300     int resample_channels;
301     int resample_sample_rate;
302     int reformat_pair;
303     AVAudioConvert *reformat_ctx;
304     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
305     FILE *logfile;
306 } AVOutputStream;
307
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
310
311 typedef struct AVInputStream {
312     int file_index;
313     int index;
314     AVStream *st;
315     int discard;             /* true if stream data should be discarded */
316     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
317     int64_t sample_index;      /* current sample */
318
319     int64_t       start;     /* time when read started */
320     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
321                                 is not defined */
322     int64_t       pts;       /* current pts */
323     PtsCorrectionContext pts_ctx;
324     int is_start;            /* is 1 at the start and after a discontinuity */
325     int showed_multi_packet_warning;
326     int is_past_recording_time;
327 #if CONFIG_AVFILTER
328     AVFilterContext *output_video_filter;
329     AVFilterContext *input_video_filter;
330     AVFrame *filter_frame;
331     int has_filter_frame;
332     AVFilterBufferRef *picref;
333 #endif
334 } AVInputStream;
335
336 typedef struct AVInputFile {
337     int eof_reached;      /* true if eof reached */
338     int ist_index;        /* index of first stream in ist_table */
339     int buffer_size;      /* current total buffer size */
340     int nb_streams;       /* nb streams we are aware of */
341 } AVInputFile;
342
343 #if HAVE_TERMIOS_H
344
345 /* init terminal so that we can grab keys */
346 static struct termios oldtty;
347 #endif
348
349 #if CONFIG_AVFILTER
350
351 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
352 {
353     AVFilterContext *last_filter, *filter;
354     /** filter graph containing all filters including input & output */
355     AVCodecContext *codec = ost->st->codec;
356     AVCodecContext *icodec = ist->st->codec;
357     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
358     char args[255];
359     int ret;
360
361     graph = avfilter_graph_alloc();
362
363     snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
364              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
365     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
366                                        "src", args, NULL, graph);
367     if (ret < 0)
368         return ret;
369     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
370                                        "out", NULL, &ffsink_ctx, graph);
371     if (ret < 0)
372         return ret;
373     last_filter = ist->input_video_filter;
374
375     if (codec->width  != icodec->width || codec->height != icodec->height) {
376         snprintf(args, 255, "%d:%d:flags=0x%X",
377                  codec->width,
378                  codec->height,
379                  (int)av_get_int(sws_opts, "sws_flags", NULL));
380         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381                                                 NULL, args, NULL, graph)) < 0)
382             return ret;
383         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
384             return ret;
385         last_filter = filter;
386     }
387
388     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
389     graph->scale_sws_opts = av_strdup(args);
390
391     if (vfilters) {
392         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
393         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
394
395         outputs->name    = av_strdup("in");
396         outputs->filter_ctx = last_filter;
397         outputs->pad_idx = 0;
398         outputs->next    = NULL;
399
400         inputs->name    = av_strdup("out");
401         inputs->filter_ctx = ist->output_video_filter;
402         inputs->pad_idx = 0;
403         inputs->next    = NULL;
404
405         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
406             return ret;
407         av_freep(&vfilters);
408     } else {
409         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
410             return ret;
411     }
412
413     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
414         return ret;
415
416     codec->width  = ist->output_video_filter->inputs[0]->w;
417     codec->height = ist->output_video_filter->inputs[0]->h;
418
419     return 0;
420 }
421 #endif /* CONFIG_AVFILTER */
422
423 static void term_exit(void)
424 {
425     av_log(NULL, AV_LOG_QUIET, "");
426 #if HAVE_TERMIOS_H
427     tcsetattr (0, TCSANOW, &oldtty);
428 #endif
429 }
430
431 static volatile int received_sigterm = 0;
432
433 static void
434 sigterm_handler(int sig)
435 {
436     received_sigterm = sig;
437     term_exit();
438 }
439
440 static void term_init(void)
441 {
442 #if HAVE_TERMIOS_H
443     struct termios tty;
444
445     tcgetattr (0, &tty);
446     oldtty = tty;
447     atexit(term_exit);
448
449     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
450                           |INLCR|IGNCR|ICRNL|IXON);
451     tty.c_oflag |= OPOST;
452     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
453     tty.c_cflag &= ~(CSIZE|PARENB);
454     tty.c_cflag |= CS8;
455     tty.c_cc[VMIN] = 1;
456     tty.c_cc[VTIME] = 0;
457
458     tcsetattr (0, TCSANOW, &tty);
459     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
460 #endif
461
462     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
463     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
464 #ifdef SIGXCPU
465     signal(SIGXCPU, sigterm_handler);
466 #endif
467 }
468
469 /* read a key without blocking */
470 static int read_key(void)
471 {
472 #if HAVE_TERMIOS_H
473     int n = 1;
474     unsigned char ch;
475     struct timeval tv;
476     fd_set rfds;
477
478     FD_ZERO(&rfds);
479     FD_SET(0, &rfds);
480     tv.tv_sec = 0;
481     tv.tv_usec = 0;
482     n = select(1, &rfds, NULL, NULL, &tv);
483     if (n > 0) {
484         n = read(0, &ch, 1);
485         if (n == 1)
486             return ch;
487
488         return n;
489     }
490 #elif HAVE_CONIO_H
491     if(kbhit())
492         return(getch());
493 #endif
494     return -1;
495 }
496
497 static int decode_interrupt_cb(void)
498 {
499     return q_pressed || (q_pressed = read_key() == 'q');
500 }
501
502 static int ffmpeg_exit(int ret)
503 {
504     int i;
505
506     /* close files */
507     for(i=0;i<nb_output_files;i++) {
508         /* maybe av_close_output_file ??? */
509         AVFormatContext *s = output_files[i];
510         int j;
511         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
512             url_fclose(s->pb);
513         for(j=0;j<s->nb_streams;j++) {
514             av_metadata_free(&s->streams[j]->metadata);
515             av_free(s->streams[j]->codec);
516             av_free(s->streams[j]->info);
517             av_free(s->streams[j]);
518         }
519         for(j=0;j<s->nb_programs;j++) {
520             av_metadata_free(&s->programs[j]->metadata);
521         }
522         for(j=0;j<s->nb_chapters;j++) {
523             av_metadata_free(&s->chapters[j]->metadata);
524         }
525         av_metadata_free(&s->metadata);
526         av_free(s);
527         av_free(output_streams_for_file[i]);
528     }
529     for(i=0;i<nb_input_files;i++) {
530         av_close_input_file(input_files[i]);
531         av_free(input_files_ts_scale[i]);
532     }
533
534     av_free(intra_matrix);
535     av_free(inter_matrix);
536
537     if (vstats_file)
538         fclose(vstats_file);
539     av_free(vstats_filename);
540
541     av_free(opt_names);
542     av_free(streamid_map);
543     av_free(input_codecs);
544     av_free(output_codecs);
545     av_free(stream_maps);
546     av_free(meta_data_maps);
547
548     av_free(video_codec_name);
549     av_free(audio_codec_name);
550     av_free(subtitle_codec_name);
551
552     av_free(video_standard);
553
554     uninit_opts();
555     av_free(audio_buf);
556     av_free(audio_out);
557     allocated_audio_buf_size= allocated_audio_out_size= 0;
558     av_free(samples);
559
560 #if CONFIG_AVFILTER
561     avfilter_uninit();
562 #endif
563
564     if (received_sigterm) {
565         fprintf(stderr,
566             "Received signal %d: terminating.\n",
567             (int) received_sigterm);
568         exit (255);
569     }
570
571     exit(ret); /* not all OS-es handle main() return value */
572     return ret;
573 }
574
575 /* similar to ff_dynarray_add() and av_fast_realloc() */
576 static void *grow_array(void *array, int elem_size, int *size, int new_size)
577 {
578     if (new_size >= INT_MAX / elem_size) {
579         fprintf(stderr, "Array too big.\n");
580         ffmpeg_exit(1);
581     }
582     if (*size < new_size) {
583         uint8_t *tmp = av_realloc(array, new_size*elem_size);
584         if (!tmp) {
585             fprintf(stderr, "Could not alloc buffer.\n");
586             ffmpeg_exit(1);
587         }
588         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
589         *size = new_size;
590         return tmp;
591     }
592     return array;
593 }
594
595 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
596 {
597     if(codec && codec->sample_fmts){
598         const enum AVSampleFormat *p= codec->sample_fmts;
599         for(; *p!=-1; p++){
600             if(*p == st->codec->sample_fmt)
601                 break;
602         }
603         if(*p == -1)
604             st->codec->sample_fmt = codec->sample_fmts[0];
605     }
606 }
607
608 static void choose_sample_rate(AVStream *st, AVCodec *codec)
609 {
610     if(codec && codec->supported_samplerates){
611         const int *p= codec->supported_samplerates;
612         int best=0;
613         int best_dist=INT_MAX;
614         for(; *p; p++){
615             int dist= abs(st->codec->sample_rate - *p);
616             if(dist < best_dist){
617                 best_dist= dist;
618                 best= *p;
619             }
620         }
621         if(best_dist){
622             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
623         }
624         st->codec->sample_rate= best;
625     }
626 }
627
628 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
629 {
630     if(codec && codec->pix_fmts){
631         const enum PixelFormat *p= codec->pix_fmts;
632         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
633             if(st->codec->codec_id==CODEC_ID_MJPEG){
634                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
635             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
636                 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};
637             }
638         }
639         for(; *p!=-1; p++){
640             if(*p == st->codec->pix_fmt)
641                 break;
642         }
643         if(*p == -1)
644             st->codec->pix_fmt = codec->pix_fmts[0];
645     }
646 }
647
648 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
649 {
650     int idx = oc->nb_streams - 1;
651     AVOutputStream *ost;
652
653     output_streams_for_file[file_idx] =
654         grow_array(output_streams_for_file[file_idx],
655                    sizeof(*output_streams_for_file[file_idx]),
656                    &nb_output_streams_for_file[file_idx],
657                    oc->nb_streams);
658     ost = output_streams_for_file[file_idx][idx] =
659         av_mallocz(sizeof(AVOutputStream));
660     if (!ost) {
661         fprintf(stderr, "Could not alloc output stream\n");
662         ffmpeg_exit(1);
663     }
664     ost->file_index = file_idx;
665     ost->index = idx;
666     return ost;
667 }
668
669 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
670 {
671     int i, err;
672     AVFormatContext *ic;
673     int nopts = 0;
674
675     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
676     if (err < 0)
677         return err;
678     /* copy stream format */
679     s->nb_streams = 0;
680     for(i=0;i<ic->nb_streams;i++) {
681         AVStream *st;
682         AVCodec *codec;
683
684         s->nb_streams++;
685
686         // FIXME: a more elegant solution is needed
687         st = av_mallocz(sizeof(AVStream));
688         memcpy(st, ic->streams[i], sizeof(AVStream));
689         st->codec = avcodec_alloc_context();
690         if (!st->codec) {
691             print_error(filename, AVERROR(ENOMEM));
692             ffmpeg_exit(1);
693         }
694         avcodec_copy_context(st->codec, ic->streams[i]->codec);
695         s->streams[i] = st;
696
697         codec = avcodec_find_encoder(st->codec->codec_id);
698         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
699             if (audio_stream_copy) {
700                 st->stream_copy = 1;
701             } else
702                 choose_sample_fmt(st, codec);
703         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
704             if (video_stream_copy) {
705                 st->stream_copy = 1;
706             } else
707                 choose_pixel_fmt(st, codec);
708         }
709
710         if(!st->codec->thread_count)
711             st->codec->thread_count = 1;
712         if(st->codec->thread_count>1)
713             avcodec_thread_init(st->codec, st->codec->thread_count);
714
715         if(st->codec->flags & CODEC_FLAG_BITEXACT)
716             nopts = 1;
717
718         new_output_stream(s, nb_output_files);
719     }
720
721     if (!nopts)
722         s->timestamp = av_gettime();
723
724     av_close_input_file(ic);
725     return 0;
726 }
727
728 static double
729 get_sync_ipts(const AVOutputStream *ost)
730 {
731     const AVInputStream *ist = ost->sync_ist;
732     return (double)(ist->pts - start_time)/AV_TIME_BASE;
733 }
734
735 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
736     int ret;
737
738     while(bsfc){
739         AVPacket new_pkt= *pkt;
740         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
741                                           &new_pkt.data, &new_pkt.size,
742                                           pkt->data, pkt->size,
743                                           pkt->flags & AV_PKT_FLAG_KEY);
744         if(a>0){
745             av_free_packet(pkt);
746             new_pkt.destruct= av_destruct_packet;
747         } else if(a<0){
748             fprintf(stderr, "%s failed for stream %d, codec %s",
749                     bsfc->filter->name, pkt->stream_index,
750                     avctx->codec ? avctx->codec->name : "copy");
751             print_error("", a);
752             if (exit_on_error)
753                 ffmpeg_exit(1);
754         }
755         *pkt= new_pkt;
756
757         bsfc= bsfc->next;
758     }
759
760     ret= av_interleaved_write_frame(s, pkt);
761     if(ret < 0){
762         print_error("av_interleaved_write_frame()", ret);
763         ffmpeg_exit(1);
764     }
765 }
766
767 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
768
769 static void do_audio_out(AVFormatContext *s,
770                          AVOutputStream *ost,
771                          AVInputStream *ist,
772                          unsigned char *buf, int size)
773 {
774     uint8_t *buftmp;
775     int64_t audio_out_size, audio_buf_size;
776     int64_t allocated_for_size= size;
777
778     int size_out, frame_bytes, ret, resample_changed;
779     AVCodecContext *enc= ost->st->codec;
780     AVCodecContext *dec= ist->st->codec;
781     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
782     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
783     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
784
785 need_realloc:
786     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
787     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
788     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
789     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
790     audio_buf_size*= osize*enc->channels;
791
792     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
793     if(coded_bps > 8*osize)
794         audio_out_size= audio_out_size * coded_bps / (8*osize);
795     audio_out_size += FF_MIN_BUFFER_SIZE;
796
797     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
798         fprintf(stderr, "Buffer sizes too large\n");
799         ffmpeg_exit(1);
800     }
801
802     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
803     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
804     if (!audio_buf || !audio_out){
805         fprintf(stderr, "Out of memory in do_audio_out\n");
806         ffmpeg_exit(1);
807     }
808
809     if (enc->channels != dec->channels)
810         ost->audio_resample = 1;
811
812     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
813                        ost->resample_channels    != dec->channels   ||
814                        ost->resample_sample_rate != dec->sample_rate;
815
816     if ((ost->audio_resample && !ost->resample) || resample_changed) {
817         if (resample_changed) {
818             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
819                    ist->file_index, ist->index,
820                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
821                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
822             ost->resample_sample_fmt  = dec->sample_fmt;
823             ost->resample_channels    = dec->channels;
824             ost->resample_sample_rate = dec->sample_rate;
825             if (ost->resample)
826                 audio_resample_close(ost->resample);
827         }
828         if (ost->resample_sample_fmt  == enc->sample_fmt &&
829             ost->resample_channels    == enc->channels   &&
830             ost->resample_sample_rate == enc->sample_rate) {
831             ost->resample = NULL;
832             ost->audio_resample = 0;
833         } else {
834             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
835                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
836             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
837                                                    enc->sample_rate, dec->sample_rate,
838                                                    enc->sample_fmt,  dec->sample_fmt,
839                                                    16, 10, 0, 0.8);
840             if (!ost->resample) {
841                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
842                         dec->channels, dec->sample_rate,
843                         enc->channels, enc->sample_rate);
844                 ffmpeg_exit(1);
845             }
846         }
847     }
848
849 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
850     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
851         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
852         if (ost->reformat_ctx)
853             av_audio_convert_free(ost->reformat_ctx);
854         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
855                                                    dec->sample_fmt, 1, NULL, 0);
856         if (!ost->reformat_ctx) {
857             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
858                 av_get_sample_fmt_name(dec->sample_fmt),
859                 av_get_sample_fmt_name(enc->sample_fmt));
860             ffmpeg_exit(1);
861         }
862         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
863     }
864
865     if(audio_sync_method){
866         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
867                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
868         double idelta= delta*dec->sample_rate / enc->sample_rate;
869         int byte_delta= ((int)idelta)*2*dec->channels;
870
871         //FIXME resample delay
872         if(fabs(delta) > 50){
873             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
874                 if(byte_delta < 0){
875                     byte_delta= FFMAX(byte_delta, -size);
876                     size += byte_delta;
877                     buf  -= byte_delta;
878                     if(verbose > 2)
879                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
880                     if(!size)
881                         return;
882                     ist->is_start=0;
883                 }else{
884                     static uint8_t *input_tmp= NULL;
885                     input_tmp= av_realloc(input_tmp, byte_delta + size);
886
887                     if(byte_delta > allocated_for_size - size){
888                         allocated_for_size= byte_delta + (int64_t)size;
889                         goto need_realloc;
890                     }
891                     ist->is_start=0;
892
893                     memset(input_tmp, 0, byte_delta);
894                     memcpy(input_tmp + byte_delta, buf, size);
895                     buf= input_tmp;
896                     size += byte_delta;
897                     if(verbose > 2)
898                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
899                 }
900             }else if(audio_sync_method>1){
901                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
902                 av_assert0(ost->audio_resample);
903                 if(verbose > 2)
904                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
905 //                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));
906                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
907             }
908         }
909     }else
910         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
911                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
912
913     if (ost->audio_resample) {
914         buftmp = audio_buf;
915         size_out = audio_resample(ost->resample,
916                                   (short *)buftmp, (short *)buf,
917                                   size / (dec->channels * isize));
918         size_out = size_out * enc->channels * osize;
919     } else {
920         buftmp = buf;
921         size_out = size;
922     }
923
924     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
925         const void *ibuf[6]= {buftmp};
926         void *obuf[6]= {audio_buf};
927         int istride[6]= {isize};
928         int ostride[6]= {osize};
929         int len= size_out/istride[0];
930         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
931             printf("av_audio_convert() failed\n");
932             if (exit_on_error)
933                 ffmpeg_exit(1);
934             return;
935         }
936         buftmp = audio_buf;
937         size_out = len*osize;
938     }
939
940     /* now encode as many frames as possible */
941     if (enc->frame_size > 1) {
942         /* output resampled raw samples */
943         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
944             fprintf(stderr, "av_fifo_realloc2() failed\n");
945             ffmpeg_exit(1);
946         }
947         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
948
949         frame_bytes = enc->frame_size * osize * enc->channels;
950
951         while (av_fifo_size(ost->fifo) >= frame_bytes) {
952             AVPacket pkt;
953             av_init_packet(&pkt);
954
955             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
956
957             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
958
959             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
960                                        (short *)audio_buf);
961             if (ret < 0) {
962                 fprintf(stderr, "Audio encoding failed\n");
963                 ffmpeg_exit(1);
964             }
965             audio_size += ret;
966             pkt.stream_index= ost->index;
967             pkt.data= audio_out;
968             pkt.size= ret;
969             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
970                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
971             pkt.flags |= AV_PKT_FLAG_KEY;
972             write_frame(s, &pkt, enc, ost->bitstream_filters);
973
974             ost->sync_opts += enc->frame_size;
975         }
976     } else {
977         AVPacket pkt;
978         av_init_packet(&pkt);
979
980         ost->sync_opts += size_out / (osize * enc->channels);
981
982         /* output a pcm frame */
983         /* determine the size of the coded buffer */
984         size_out /= osize;
985         if (coded_bps)
986             size_out = size_out*coded_bps/8;
987
988         if(size_out > audio_out_size){
989             fprintf(stderr, "Internal error, buffer size too small\n");
990             ffmpeg_exit(1);
991         }
992
993         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
994         ret = avcodec_encode_audio(enc, audio_out, size_out,
995                                    (short *)buftmp);
996         if (ret < 0) {
997             fprintf(stderr, "Audio encoding failed\n");
998             ffmpeg_exit(1);
999         }
1000         audio_size += ret;
1001         pkt.stream_index= ost->index;
1002         pkt.data= audio_out;
1003         pkt.size= ret;
1004         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1005             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1006         pkt.flags |= AV_PKT_FLAG_KEY;
1007         write_frame(s, &pkt, enc, ost->bitstream_filters);
1008     }
1009 }
1010
1011 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1012 {
1013     AVCodecContext *dec;
1014     AVPicture *picture2;
1015     AVPicture picture_tmp;
1016     uint8_t *buf = 0;
1017
1018     dec = ist->st->codec;
1019
1020     /* deinterlace : must be done before any resize */
1021     if (do_deinterlace) {
1022         int size;
1023
1024         /* create temporary picture */
1025         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1026         buf = av_malloc(size);
1027         if (!buf)
1028             return;
1029
1030         picture2 = &picture_tmp;
1031         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1032
1033         if(avpicture_deinterlace(picture2, picture,
1034                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1035             /* if error, do not deinterlace */
1036             fprintf(stderr, "Deinterlacing failed\n");
1037             av_free(buf);
1038             buf = NULL;
1039             picture2 = picture;
1040         }
1041     } else {
1042         picture2 = picture;
1043     }
1044
1045     if (picture != picture2)
1046         *picture = *picture2;
1047     *bufp = buf;
1048 }
1049
1050 /* we begin to correct av delay at this threshold */
1051 #define AV_DELAY_MAX 0.100
1052
1053 static void do_subtitle_out(AVFormatContext *s,
1054                             AVOutputStream *ost,
1055                             AVInputStream *ist,
1056                             AVSubtitle *sub,
1057                             int64_t pts)
1058 {
1059     static uint8_t *subtitle_out = NULL;
1060     int subtitle_out_max_size = 1024 * 1024;
1061     int subtitle_out_size, nb, i;
1062     AVCodecContext *enc;
1063     AVPacket pkt;
1064
1065     if (pts == AV_NOPTS_VALUE) {
1066         fprintf(stderr, "Subtitle packets must have a pts\n");
1067         if (exit_on_error)
1068             ffmpeg_exit(1);
1069         return;
1070     }
1071
1072     enc = ost->st->codec;
1073
1074     if (!subtitle_out) {
1075         subtitle_out = av_malloc(subtitle_out_max_size);
1076     }
1077
1078     /* Note: DVB subtitle need one packet to draw them and one other
1079        packet to clear them */
1080     /* XXX: signal it in the codec context ? */
1081     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1082         nb = 2;
1083     else
1084         nb = 1;
1085
1086     for(i = 0; i < nb; i++) {
1087         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1088         // start_display_time is required to be 0
1089         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1090         sub->end_display_time -= sub->start_display_time;
1091         sub->start_display_time = 0;
1092         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1093                                                     subtitle_out_max_size, sub);
1094         if (subtitle_out_size < 0) {
1095             fprintf(stderr, "Subtitle encoding failed\n");
1096             ffmpeg_exit(1);
1097         }
1098
1099         av_init_packet(&pkt);
1100         pkt.stream_index = ost->index;
1101         pkt.data = subtitle_out;
1102         pkt.size = subtitle_out_size;
1103         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1104         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1105             /* XXX: the pts correction is handled here. Maybe handling
1106                it in the codec would be better */
1107             if (i == 0)
1108                 pkt.pts += 90 * sub->start_display_time;
1109             else
1110                 pkt.pts += 90 * sub->end_display_time;
1111         }
1112         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1113     }
1114 }
1115
1116 static int bit_buffer_size= 1024*256;
1117 static uint8_t *bit_buffer= NULL;
1118
1119 static void do_video_out(AVFormatContext *s,
1120                          AVOutputStream *ost,
1121                          AVInputStream *ist,
1122                          AVFrame *in_picture,
1123                          int *frame_size)
1124 {
1125     int nb_frames, i, ret;
1126     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1127     AVCodecContext *enc, *dec;
1128     double sync_ipts;
1129
1130     enc = ost->st->codec;
1131     dec = ist->st->codec;
1132
1133     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1134
1135     /* by default, we output a single frame */
1136     nb_frames = 1;
1137
1138     *frame_size = 0;
1139
1140     if(video_sync_method){
1141         double vdelta = sync_ipts - ost->sync_opts;
1142         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1143         if (vdelta < -1.1)
1144             nb_frames = 0;
1145         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1146             if(vdelta<=-0.6){
1147                 nb_frames=0;
1148             }else if(vdelta>0.6)
1149                 ost->sync_opts= lrintf(sync_ipts);
1150         }else if (vdelta > 1.1)
1151             nb_frames = lrintf(vdelta);
1152 //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);
1153         if (nb_frames == 0){
1154             ++nb_frames_drop;
1155             if (verbose>2)
1156                 fprintf(stderr, "*** drop!\n");
1157         }else if (nb_frames > 1) {
1158             nb_frames_dup += nb_frames - 1;
1159             if (verbose>2)
1160                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1161         }
1162     }else
1163         ost->sync_opts= lrintf(sync_ipts);
1164
1165     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1166     if (nb_frames <= 0)
1167         return;
1168
1169     formatted_picture = in_picture;
1170     final_picture = formatted_picture;
1171     padding_src = formatted_picture;
1172     resampling_dst = &ost->pict_tmp;
1173
1174     if (   ost->resample_height != ist->st->codec->height
1175         || ost->resample_width  != ist->st->codec->width
1176         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1177
1178         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));
1179         if(!ost->video_resample)
1180             ffmpeg_exit(1);
1181     }
1182
1183 #if !CONFIG_AVFILTER
1184     if (ost->video_resample) {
1185         padding_src = NULL;
1186         final_picture = &ost->pict_tmp;
1187         if(  ost->resample_height != ist->st->codec->height
1188           || ost->resample_width  != ist->st->codec->width
1189           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1190
1191             /* initialize a new scaler context */
1192             sws_freeContext(ost->img_resample_ctx);
1193             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1194             ost->img_resample_ctx = sws_getContext(
1195                 ist->st->codec->width,
1196                 ist->st->codec->height,
1197                 ist->st->codec->pix_fmt,
1198                 ost->st->codec->width,
1199                 ost->st->codec->height,
1200                 ost->st->codec->pix_fmt,
1201                 sws_flags, NULL, NULL, NULL);
1202             if (ost->img_resample_ctx == NULL) {
1203                 fprintf(stderr, "Cannot get resampling context\n");
1204                 ffmpeg_exit(1);
1205             }
1206         }
1207         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1208               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1209     }
1210 #endif
1211
1212     /* duplicates frame if needed */
1213     for(i=0;i<nb_frames;i++) {
1214         AVPacket pkt;
1215         av_init_packet(&pkt);
1216         pkt.stream_index= ost->index;
1217
1218         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1219             /* raw pictures are written as AVPicture structure to
1220                avoid any copies. We support temorarily the older
1221                method. */
1222             AVFrame* old_frame = enc->coded_frame;
1223             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1224             pkt.data= (uint8_t *)final_picture;
1225             pkt.size=  sizeof(AVPicture);
1226             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1227             pkt.flags |= AV_PKT_FLAG_KEY;
1228
1229             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1230             enc->coded_frame = old_frame;
1231         } else {
1232             AVFrame big_picture;
1233
1234             big_picture= *final_picture;
1235             /* better than nothing: use input picture interlaced
1236                settings */
1237             big_picture.interlaced_frame = in_picture->interlaced_frame;
1238             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1239                 if(top_field_first == -1)
1240                     big_picture.top_field_first = in_picture->top_field_first;
1241                 else
1242                     big_picture.top_field_first = top_field_first;
1243             }
1244
1245             /* handles sameq here. This is not correct because it may
1246                not be a global option */
1247             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1248             if(!me_threshold)
1249                 big_picture.pict_type = 0;
1250 //            big_picture.pts = AV_NOPTS_VALUE;
1251             big_picture.pts= ost->sync_opts;
1252 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1253 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1254             if (ost->forced_kf_index < ost->forced_kf_count &&
1255                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1256                 big_picture.pict_type = FF_I_TYPE;
1257                 ost->forced_kf_index++;
1258             }
1259             ret = avcodec_encode_video(enc,
1260                                        bit_buffer, bit_buffer_size,
1261                                        &big_picture);
1262             if (ret < 0) {
1263                 fprintf(stderr, "Video encoding failed\n");
1264                 ffmpeg_exit(1);
1265             }
1266
1267             if(ret>0){
1268                 pkt.data= bit_buffer;
1269                 pkt.size= ret;
1270                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1271                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1272 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1273    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1274    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1275
1276                 if(enc->coded_frame->key_frame)
1277                     pkt.flags |= AV_PKT_FLAG_KEY;
1278                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1279                 *frame_size = ret;
1280                 video_size += ret;
1281                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1282                 //        enc->frame_number-1, ret, enc->pict_type);
1283                 /* if two pass, output log */
1284                 if (ost->logfile && enc->stats_out) {
1285                     fprintf(ost->logfile, "%s", enc->stats_out);
1286                 }
1287             }
1288         }
1289         ost->sync_opts++;
1290         ost->frame_number++;
1291     }
1292 }
1293
1294 static double psnr(double d){
1295     return -10.0*log(d)/log(10.0);
1296 }
1297
1298 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1299                            int frame_size)
1300 {
1301     AVCodecContext *enc;
1302     int frame_number;
1303     double ti1, bitrate, avg_bitrate;
1304
1305     /* this is executed just the first time do_video_stats is called */
1306     if (!vstats_file) {
1307         vstats_file = fopen(vstats_filename, "w");
1308         if (!vstats_file) {
1309             perror("fopen");
1310             ffmpeg_exit(1);
1311         }
1312     }
1313
1314     enc = ost->st->codec;
1315     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1316         frame_number = ost->frame_number;
1317         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1318         if (enc->flags&CODEC_FLAG_PSNR)
1319             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1320
1321         fprintf(vstats_file,"f_size= %6d ", frame_size);
1322         /* compute pts value */
1323         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1324         if (ti1 < 0.01)
1325             ti1 = 0.01;
1326
1327         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1328         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1329         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1330             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1331         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1332     }
1333 }
1334
1335 static void print_report(AVFormatContext **output_files,
1336                          AVOutputStream **ost_table, int nb_ostreams,
1337                          int is_last_report)
1338 {
1339     char buf[1024];
1340     AVOutputStream *ost;
1341     AVFormatContext *oc;
1342     int64_t total_size;
1343     AVCodecContext *enc;
1344     int frame_number, vid, i;
1345     double bitrate, ti1, pts;
1346     static int64_t last_time = -1;
1347     static int qp_histogram[52];
1348
1349     if (!is_last_report) {
1350         int64_t cur_time;
1351         /* display the report every 0.5 seconds */
1352         cur_time = av_gettime();
1353         if (last_time == -1) {
1354             last_time = cur_time;
1355             return;
1356         }
1357         if ((cur_time - last_time) < 500000)
1358             return;
1359         last_time = cur_time;
1360     }
1361
1362
1363     oc = output_files[0];
1364
1365     total_size = url_fsize(oc->pb);
1366     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1367         total_size= url_ftell(oc->pb);
1368
1369     buf[0] = '\0';
1370     ti1 = 1e10;
1371     vid = 0;
1372     for(i=0;i<nb_ostreams;i++) {
1373         ost = ost_table[i];
1374         enc = ost->st->codec;
1375         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1376             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1377                      !ost->st->stream_copy ?
1378                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1379         }
1380         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1381             float t = (av_gettime()-timer_start) / 1000000.0;
1382
1383             frame_number = ost->frame_number;
1384             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1385                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1386                      !ost->st->stream_copy ?
1387                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1388             if(is_last_report)
1389                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1390             if(qp_hist){
1391                 int j;
1392                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1393                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1394                     qp_histogram[qp]++;
1395                 for(j=0; j<32; j++)
1396                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1397             }
1398             if (enc->flags&CODEC_FLAG_PSNR){
1399                 int j;
1400                 double error, error_sum=0;
1401                 double scale, scale_sum=0;
1402                 char type[3]= {'Y','U','V'};
1403                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1404                 for(j=0; j<3; j++){
1405                     if(is_last_report){
1406                         error= enc->error[j];
1407                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1408                     }else{
1409                         error= enc->coded_frame->error[j];
1410                         scale= enc->width*enc->height*255.0*255.0;
1411                     }
1412                     if(j) scale/=4;
1413                     error_sum += error;
1414                     scale_sum += scale;
1415                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1416                 }
1417                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1418             }
1419             vid = 1;
1420         }
1421         /* compute min output value */
1422         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1423         if ((pts < ti1) && (pts > 0))
1424             ti1 = pts;
1425     }
1426     if (ti1 < 0.01)
1427         ti1 = 0.01;
1428
1429     if (verbose || is_last_report) {
1430         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1431
1432         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1433             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1434             (double)total_size / 1024, ti1, bitrate);
1435
1436         if (nb_frames_dup || nb_frames_drop)
1437           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1438                   nb_frames_dup, nb_frames_drop);
1439
1440         if (verbose >= 0)
1441             fprintf(stderr, "%s    \r", buf);
1442
1443         fflush(stderr);
1444     }
1445
1446     if (is_last_report && verbose >= 0){
1447         int64_t raw= audio_size + video_size + extra_size;
1448         fprintf(stderr, "\n");
1449         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1450                 video_size/1024.0,
1451                 audio_size/1024.0,
1452                 extra_size/1024.0,
1453                 100.0*(total_size - raw)/raw
1454         );
1455     }
1456 }
1457
1458 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1459 static int output_packet(AVInputStream *ist, int ist_index,
1460                          AVOutputStream **ost_table, int nb_ostreams,
1461                          const AVPacket *pkt)
1462 {
1463     AVFormatContext *os;
1464     AVOutputStream *ost;
1465     int ret, i;
1466     int got_picture;
1467     AVFrame picture;
1468     void *buffer_to_free;
1469     static unsigned int samples_size= 0;
1470     AVSubtitle subtitle, *subtitle_to_free;
1471     int64_t pkt_pts = AV_NOPTS_VALUE;
1472 #if CONFIG_AVFILTER
1473     int frame_available;
1474 #endif
1475
1476     AVPacket avpkt;
1477     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1478
1479     if(ist->next_pts == AV_NOPTS_VALUE)
1480         ist->next_pts= ist->pts;
1481
1482     if (pkt == NULL) {
1483         /* EOF handling */
1484         av_init_packet(&avpkt);
1485         avpkt.data = NULL;
1486         avpkt.size = 0;
1487         goto handle_eof;
1488     } else {
1489         avpkt = *pkt;
1490     }
1491
1492     if(pkt->dts != AV_NOPTS_VALUE)
1493         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1494     if(pkt->pts != AV_NOPTS_VALUE)
1495         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1496
1497     //while we have more to decode or while the decoder did output something on EOF
1498     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1499         uint8_t *data_buf, *decoded_data_buf;
1500         int data_size, decoded_data_size;
1501     handle_eof:
1502         ist->pts= ist->next_pts;
1503
1504         if(avpkt.size && avpkt.size != pkt->size &&
1505            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1506             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1507             ist->showed_multi_packet_warning=1;
1508         }
1509
1510         /* decode the packet if needed */
1511         decoded_data_buf = NULL; /* fail safe */
1512         decoded_data_size= 0;
1513         data_buf  = avpkt.data;
1514         data_size = avpkt.size;
1515         subtitle_to_free = NULL;
1516         if (ist->decoding_needed) {
1517             switch(ist->st->codec->codec_type) {
1518             case AVMEDIA_TYPE_AUDIO:{
1519                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1520                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1521                     av_free(samples);
1522                     samples= av_malloc(samples_size);
1523                 }
1524                 decoded_data_size= samples_size;
1525                     /* XXX: could avoid copy if PCM 16 bits with same
1526                        endianness as CPU */
1527                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1528                                             &avpkt);
1529                 if (ret < 0)
1530                     goto fail_decode;
1531                 avpkt.data += ret;
1532                 avpkt.size -= ret;
1533                 data_size   = ret;
1534                 /* Some bug in mpeg audio decoder gives */
1535                 /* decoded_data_size < 0, it seems they are overflows */
1536                 if (decoded_data_size <= 0) {
1537                     /* no audio frame */
1538                     continue;
1539                 }
1540                 decoded_data_buf = (uint8_t *)samples;
1541                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1542                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1543                 break;}
1544             case AVMEDIA_TYPE_VIDEO:
1545                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1546                     /* XXX: allocate picture correctly */
1547                     avcodec_get_frame_defaults(&picture);
1548                     ist->st->codec->reordered_opaque = pkt_pts;
1549                     pkt_pts = AV_NOPTS_VALUE;
1550
1551                     ret = avcodec_decode_video2(ist->st->codec,
1552                                                 &picture, &got_picture, &avpkt);
1553                     ist->st->quality= picture.quality;
1554                     if (ret < 0)
1555                         goto fail_decode;
1556                     if (!got_picture) {
1557                         /* no picture yet */
1558                         goto discard_packet;
1559                     }
1560                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.reordered_opaque, ist->pts);
1561                     if (ist->st->codec->time_base.num != 0) {
1562                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1563                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1564                                           ist->st->codec->time_base.num * ticks) /
1565                             ist->st->codec->time_base.den;
1566                     }
1567                     avpkt.size = 0;
1568                     break;
1569             case AVMEDIA_TYPE_SUBTITLE:
1570                 ret = avcodec_decode_subtitle2(ist->st->codec,
1571                                                &subtitle, &got_picture, &avpkt);
1572                 if (ret < 0)
1573                     goto fail_decode;
1574                 if (!got_picture) {
1575                     goto discard_packet;
1576                 }
1577                 subtitle_to_free = &subtitle;
1578                 avpkt.size = 0;
1579                 break;
1580             default:
1581                 goto fail_decode;
1582             }
1583         } else {
1584             switch(ist->st->codec->codec_type) {
1585             case AVMEDIA_TYPE_AUDIO:
1586                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1587                     ist->st->codec->sample_rate;
1588                 break;
1589             case AVMEDIA_TYPE_VIDEO:
1590                 if (ist->st->codec->time_base.num != 0) {
1591                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1592                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1593                                       ist->st->codec->time_base.num * ticks) /
1594                         ist->st->codec->time_base.den;
1595                 }
1596                 break;
1597             }
1598             ret = avpkt.size;
1599             avpkt.size = 0;
1600         }
1601
1602         buffer_to_free = NULL;
1603         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1604             pre_process_video_frame(ist, (AVPicture *)&picture,
1605                                     &buffer_to_free);
1606         }
1607
1608 #if CONFIG_AVFILTER
1609         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1610             AVRational sar;
1611             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1612             else                                  sar = ist->st->codec->sample_aspect_ratio;
1613             // add it to be filtered
1614             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1615                                      ist->pts,
1616                                      sar);
1617         }
1618 #endif
1619
1620         // preprocess audio (volume)
1621         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1622             if (audio_volume != 256) {
1623                 short *volp;
1624                 volp = samples;
1625                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1626                     int v = ((*volp) * audio_volume + 128) >> 8;
1627                     if (v < -32768) v = -32768;
1628                     if (v >  32767) v = 32767;
1629                     *volp++ = v;
1630                 }
1631             }
1632         }
1633
1634         /* frame rate emulation */
1635         if (rate_emu) {
1636             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1637             int64_t now = av_gettime() - ist->start;
1638             if (pts > now)
1639                 usleep(pts - now);
1640         }
1641 #if CONFIG_AVFILTER
1642         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1643             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1644 #endif
1645         /* if output time reached then transcode raw format,
1646            encode packets and output them */
1647         if (start_time == 0 || ist->pts >= start_time)
1648 #if CONFIG_AVFILTER
1649         while (frame_available) {
1650             AVRational ist_pts_tb;
1651             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1652                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1653             if (ist->picref)
1654                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1655 #endif
1656             for(i=0;i<nb_ostreams;i++) {
1657                 int frame_size;
1658
1659                 ost = ost_table[i];
1660                 if (ost->source_index == ist_index) {
1661                     os = output_files[ost->file_index];
1662
1663                     /* set the input output pts pairs */
1664                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1665
1666                     if (ost->encoding_needed) {
1667                         av_assert0(ist->decoding_needed);
1668                         switch(ost->st->codec->codec_type) {
1669                         case AVMEDIA_TYPE_AUDIO:
1670                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1671                             break;
1672                         case AVMEDIA_TYPE_VIDEO:
1673 #if CONFIG_AVFILTER
1674                             if (ist->picref->video)
1675                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1676 #endif
1677                             do_video_out(os, ost, ist, &picture, &frame_size);
1678                             if (vstats_filename && frame_size)
1679                                 do_video_stats(os, ost, frame_size);
1680                             break;
1681                         case AVMEDIA_TYPE_SUBTITLE:
1682                             do_subtitle_out(os, ost, ist, &subtitle,
1683                                             pkt->pts);
1684                             break;
1685                         default:
1686                             abort();
1687                         }
1688                     } else {
1689                         AVFrame avframe; //FIXME/XXX remove this
1690                         AVPacket opkt;
1691                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1692
1693                         av_init_packet(&opkt);
1694
1695                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1696                             continue;
1697
1698                         /* no reencoding needed : output the packet directly */
1699                         /* force the input stream PTS */
1700
1701                         avcodec_get_frame_defaults(&avframe);
1702                         ost->st->codec->coded_frame= &avframe;
1703                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1704
1705                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1706                             audio_size += data_size;
1707                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1708                             video_size += data_size;
1709                             ost->sync_opts++;
1710                         }
1711
1712                         opkt.stream_index= ost->index;
1713                         if(pkt->pts != AV_NOPTS_VALUE)
1714                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1715                         else
1716                             opkt.pts= AV_NOPTS_VALUE;
1717
1718                         if (pkt->dts == AV_NOPTS_VALUE)
1719                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1720                         else
1721                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1722                         opkt.dts -= ost_tb_start_time;
1723
1724                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1725                         opkt.flags= pkt->flags;
1726
1727                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1728                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1729                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1730                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1731                            ) {
1732                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1733                                 opkt.destruct= av_destruct_packet;
1734                         } else {
1735                             opkt.data = data_buf;
1736                             opkt.size = data_size;
1737                         }
1738
1739                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1740                         ost->st->codec->frame_number++;
1741                         ost->frame_number++;
1742                         av_free_packet(&opkt);
1743                     }
1744                 }
1745             }
1746
1747 #if CONFIG_AVFILTER
1748             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1749                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1750             if(ist->picref)
1751                 avfilter_unref_buffer(ist->picref);
1752         }
1753 #endif
1754         av_free(buffer_to_free);
1755         /* XXX: allocate the subtitles in the codec ? */
1756         if (subtitle_to_free) {
1757             avsubtitle_free(subtitle_to_free);
1758             subtitle_to_free = NULL;
1759         }
1760     }
1761  discard_packet:
1762     if (pkt == NULL) {
1763         /* EOF handling */
1764
1765         for(i=0;i<nb_ostreams;i++) {
1766             ost = ost_table[i];
1767             if (ost->source_index == ist_index) {
1768                 AVCodecContext *enc= ost->st->codec;
1769                 os = output_files[ost->file_index];
1770
1771                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1772                     continue;
1773                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1774                     continue;
1775
1776                 if (ost->encoding_needed) {
1777                     for(;;) {
1778                         AVPacket pkt;
1779                         int fifo_bytes;
1780                         av_init_packet(&pkt);
1781                         pkt.stream_index= ost->index;
1782
1783                         switch(ost->st->codec->codec_type) {
1784                         case AVMEDIA_TYPE_AUDIO:
1785                             fifo_bytes = av_fifo_size(ost->fifo);
1786                             ret = 0;
1787                             /* encode any samples remaining in fifo */
1788                             if (fifo_bytes > 0) {
1789                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1790                                 int fs_tmp = enc->frame_size;
1791
1792                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1793                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1794                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1795                                 } else { /* pad */
1796                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1797                                     if (allocated_audio_buf_size < frame_bytes)
1798                                         ffmpeg_exit(1);
1799                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1800                                 }
1801
1802                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1803                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1804                                                           ost->st->time_base.num, enc->sample_rate);
1805                                 enc->frame_size = fs_tmp;
1806                             }
1807                             if(ret <= 0) {
1808                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1809                             }
1810                             if (ret < 0) {
1811                                 fprintf(stderr, "Audio encoding failed\n");
1812                                 ffmpeg_exit(1);
1813                             }
1814                             audio_size += ret;
1815                             pkt.flags |= AV_PKT_FLAG_KEY;
1816                             break;
1817                         case AVMEDIA_TYPE_VIDEO:
1818                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1819                             if (ret < 0) {
1820                                 fprintf(stderr, "Video encoding failed\n");
1821                                 ffmpeg_exit(1);
1822                             }
1823                             video_size += ret;
1824                             if(enc->coded_frame && enc->coded_frame->key_frame)
1825                                 pkt.flags |= AV_PKT_FLAG_KEY;
1826                             if (ost->logfile && enc->stats_out) {
1827                                 fprintf(ost->logfile, "%s", enc->stats_out);
1828                             }
1829                             break;
1830                         default:
1831                             ret=-1;
1832                         }
1833
1834                         if(ret<=0)
1835                             break;
1836                         pkt.data= bit_buffer;
1837                         pkt.size= ret;
1838                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1839                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1840                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1841                     }
1842                 }
1843             }
1844         }
1845     }
1846
1847     return 0;
1848  fail_decode:
1849     return -1;
1850 }
1851
1852 static void print_sdp(AVFormatContext **avc, int n)
1853 {
1854     char sdp[2048];
1855
1856     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1857     printf("SDP:\n%s\n", sdp);
1858     fflush(stdout);
1859 }
1860
1861 static int copy_chapters(int infile, int outfile)
1862 {
1863     AVFormatContext *is = input_files[infile];
1864     AVFormatContext *os = output_files[outfile];
1865     int i;
1866
1867     for (i = 0; i < is->nb_chapters; i++) {
1868         AVChapter *in_ch = is->chapters[i], *out_ch;
1869         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1870                                       AV_TIME_BASE_Q, in_ch->time_base);
1871         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1872                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1873
1874
1875         if (in_ch->end < ts_off)
1876             continue;
1877         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1878             break;
1879
1880         out_ch = av_mallocz(sizeof(AVChapter));
1881         if (!out_ch)
1882             return AVERROR(ENOMEM);
1883
1884         out_ch->id        = in_ch->id;
1885         out_ch->time_base = in_ch->time_base;
1886         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1887         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1888
1889         if (metadata_chapters_autocopy)
1890             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1891
1892         os->nb_chapters++;
1893         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1894         if (!os->chapters)
1895             return AVERROR(ENOMEM);
1896         os->chapters[os->nb_chapters - 1] = out_ch;
1897     }
1898     return 0;
1899 }
1900
1901 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1902                                     AVCodecContext *avctx)
1903 {
1904     char *p;
1905     int n = 1, i;
1906     int64_t t;
1907
1908     for (p = kf; *p; p++)
1909         if (*p == ',')
1910             n++;
1911     ost->forced_kf_count = n;
1912     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1913     if (!ost->forced_kf_pts) {
1914         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1915         ffmpeg_exit(1);
1916     }
1917     for (i = 0; i < n; i++) {
1918         p = i ? strchr(p, ',') + 1 : kf;
1919         t = parse_time_or_die("force_key_frames", p, 1);
1920         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1921     }
1922 }
1923
1924 /*
1925  * The following code is the main loop of the file converter
1926  */
1927 static int transcode(AVFormatContext **output_files,
1928                      int nb_output_files,
1929                      AVFormatContext **input_files,
1930                      int nb_input_files,
1931                      AVStreamMap *stream_maps, int nb_stream_maps)
1932 {
1933     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1934     AVFormatContext *is, *os;
1935     AVCodecContext *codec, *icodec;
1936     AVOutputStream *ost, **ost_table = NULL;
1937     AVInputStream *ist, **ist_table = NULL;
1938     AVInputFile *file_table;
1939     char error[1024];
1940     int key;
1941     int want_sdp = 1;
1942     uint8_t no_packet[MAX_FILES]={0};
1943     int no_packet_count=0;
1944
1945     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1946     if (!file_table)
1947         goto fail;
1948
1949     /* input stream init */
1950     j = 0;
1951     for(i=0;i<nb_input_files;i++) {
1952         is = input_files[i];
1953         file_table[i].ist_index = j;
1954         file_table[i].nb_streams = is->nb_streams;
1955         j += is->nb_streams;
1956     }
1957     nb_istreams = j;
1958
1959     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1960     if (!ist_table)
1961         goto fail;
1962
1963     for(i=0;i<nb_istreams;i++) {
1964         ist = av_mallocz(sizeof(AVInputStream));
1965         if (!ist)
1966             goto fail;
1967         ist_table[i] = ist;
1968     }
1969     j = 0;
1970     for(i=0;i<nb_input_files;i++) {
1971         is = input_files[i];
1972         for(k=0;k<is->nb_streams;k++) {
1973             ist = ist_table[j++];
1974             ist->st = is->streams[k];
1975             ist->file_index = i;
1976             ist->index = k;
1977             ist->discard = 1; /* the stream is discarded by default
1978                                  (changed later) */
1979
1980             if (rate_emu) {
1981                 ist->start = av_gettime();
1982             }
1983         }
1984     }
1985
1986     /* output stream init */
1987     nb_ostreams = 0;
1988     for(i=0;i<nb_output_files;i++) {
1989         os = output_files[i];
1990         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1991             dump_format(output_files[i], i, output_files[i]->filename, 1);
1992             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1993             ret = AVERROR(EINVAL);
1994             goto fail;
1995         }
1996         nb_ostreams += os->nb_streams;
1997     }
1998     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1999         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2000         ret = AVERROR(EINVAL);
2001         goto fail;
2002     }
2003
2004     /* Sanity check the mapping args -- do the input files & streams exist? */
2005     for(i=0;i<nb_stream_maps;i++) {
2006         int fi = stream_maps[i].file_index;
2007         int si = stream_maps[i].stream_index;
2008
2009         if (fi < 0 || fi > nb_input_files - 1 ||
2010             si < 0 || si > file_table[fi].nb_streams - 1) {
2011             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2012             ret = AVERROR(EINVAL);
2013             goto fail;
2014         }
2015         fi = stream_maps[i].sync_file_index;
2016         si = stream_maps[i].sync_stream_index;
2017         if (fi < 0 || fi > nb_input_files - 1 ||
2018             si < 0 || si > file_table[fi].nb_streams - 1) {
2019             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2020             ret = AVERROR(EINVAL);
2021             goto fail;
2022         }
2023     }
2024
2025     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2026     if (!ost_table)
2027         goto fail;
2028     n = 0;
2029     for(k=0;k<nb_output_files;k++) {
2030         os = output_files[k];
2031         for(i=0;i<os->nb_streams;i++,n++) {
2032             int found;
2033             ost = ost_table[n] = output_streams_for_file[k][i];
2034             ost->st = os->streams[i];
2035             if (nb_stream_maps > 0) {
2036                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2037                     stream_maps[n].stream_index;
2038
2039                 /* Sanity check that the stream types match */
2040                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2041                     int i= ost->file_index;
2042                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2043                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2044                         stream_maps[n].file_index, stream_maps[n].stream_index,
2045                         ost->file_index, ost->index);
2046                     ffmpeg_exit(1);
2047                 }
2048
2049             } else {
2050                 int best_nb_frames=-1;
2051                 /* get corresponding input stream index : we select the first one with the right type */
2052                 found = 0;
2053                 for(j=0;j<nb_istreams;j++) {
2054                     int skip=0;
2055                     ist = ist_table[j];
2056                     if(opt_programid){
2057                         int pi,si;
2058                         AVFormatContext *f= input_files[ ist->file_index ];
2059                         skip=1;
2060                         for(pi=0; pi<f->nb_programs; pi++){
2061                             AVProgram *p= f->programs[pi];
2062                             if(p->id == opt_programid)
2063                                 for(si=0; si<p->nb_stream_indexes; si++){
2064                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2065                                         skip=0;
2066                                 }
2067                         }
2068                     }
2069                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2070                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2071                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2072                             best_nb_frames= ist->st->codec_info_nb_frames;
2073                             ost->source_index = j;
2074                             found = 1;
2075                         }
2076                     }
2077                 }
2078
2079                 if (!found) {
2080                     if(! opt_programid) {
2081                         /* try again and reuse existing stream */
2082                         for(j=0;j<nb_istreams;j++) {
2083                             ist = ist_table[j];
2084                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2085                                 && ist->st->discard != AVDISCARD_ALL) {
2086                                 ost->source_index = j;
2087                                 found = 1;
2088                             }
2089                         }
2090                     }
2091                     if (!found) {
2092                         int i= ost->file_index;
2093                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2094                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2095                                 ost->file_index, ost->index);
2096                         ffmpeg_exit(1);
2097                     }
2098                 }
2099             }
2100             ist = ist_table[ost->source_index];
2101             ist->discard = 0;
2102             ost->sync_ist = (nb_stream_maps > 0) ?
2103                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2104                          stream_maps[n].sync_stream_index] : ist;
2105         }
2106     }
2107
2108     /* for each output stream, we compute the right encoding parameters */
2109     for(i=0;i<nb_ostreams;i++) {
2110         ost = ost_table[i];
2111         os = output_files[ost->file_index];
2112         ist = ist_table[ost->source_index];
2113
2114         codec = ost->st->codec;
2115         icodec = ist->st->codec;
2116
2117         if (metadata_streams_autocopy)
2118             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2119                              AV_METADATA_DONT_OVERWRITE);
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(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
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         int j;
2372
2373 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2374         if ((index) < 0 || (index) >= (nb_elems)) {\
2375             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2376                      (desc), (index));\
2377             ret = AVERROR(EINVAL);\
2378             goto dump_format;\
2379         }
2380
2381         int out_file_index = meta_data_maps[i][0].file;
2382         int in_file_index = meta_data_maps[i][1].file;
2383         if (in_file_index < 0 || out_file_index < 0)
2384             continue;
2385         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2386         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2387
2388         files[0] = output_files[out_file_index];
2389         files[1] = input_files[in_file_index];
2390
2391         for (j = 0; j < 2; j++) {
2392             AVMetaDataMap *map = &meta_data_maps[i][j];
2393
2394             switch (map->type) {
2395             case 'g':
2396                 meta[j] = &files[j]->metadata;
2397                 break;
2398             case 's':
2399                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2400                 meta[j] = &files[j]->streams[map->index]->metadata;
2401                 break;
2402             case 'c':
2403                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2404                 meta[j] = &files[j]->chapters[map->index]->metadata;
2405                 break;
2406             case 'p':
2407                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2408                 meta[j] = &files[j]->programs[map->index]->metadata;
2409                 break;
2410             }
2411         }
2412
2413         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2414     }
2415
2416     /* copy global metadata by default */
2417     if (metadata_global_autocopy) {
2418
2419         for (i = 0; i < nb_output_files; i++)
2420             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2421                              AV_METADATA_DONT_OVERWRITE);
2422     }
2423
2424     /* copy chapters according to chapter maps */
2425     for (i = 0; i < nb_chapter_maps; i++) {
2426         int infile  = chapter_maps[i].in_file;
2427         int outfile = chapter_maps[i].out_file;
2428
2429         if (infile < 0 || outfile < 0)
2430             continue;
2431         if (infile >= nb_input_files) {
2432             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2433             ret = AVERROR(EINVAL);
2434             goto dump_format;
2435         }
2436         if (outfile >= nb_output_files) {
2437             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2438             ret = AVERROR(EINVAL);
2439             goto dump_format;
2440         }
2441         copy_chapters(infile, outfile);
2442     }
2443
2444     /* copy chapters from the first input file that has them*/
2445     if (!nb_chapter_maps)
2446         for (i = 0; i < nb_input_files; i++) {
2447             if (!input_files[i]->nb_chapters)
2448                 continue;
2449
2450             for (j = 0; j < nb_output_files; j++)
2451                 if ((ret = copy_chapters(i, j)) < 0)
2452                     goto dump_format;
2453             break;
2454         }
2455
2456     /* open files and write file headers */
2457     for(i=0;i<nb_output_files;i++) {
2458         os = output_files[i];
2459         if (av_write_header(os) < 0) {
2460             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2461             ret = AVERROR(EINVAL);
2462             goto dump_format;
2463         }
2464         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2465             want_sdp = 0;
2466         }
2467     }
2468
2469  dump_format:
2470     /* dump the file output parameters - cannot be done before in case
2471        of stream copy */
2472     for(i=0;i<nb_output_files;i++) {
2473         dump_format(output_files[i], i, output_files[i]->filename, 1);
2474     }
2475
2476     /* dump the stream mapping */
2477     if (verbose >= 0) {
2478         fprintf(stderr, "Stream mapping:\n");
2479         for(i=0;i<nb_ostreams;i++) {
2480             ost = ost_table[i];
2481             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2482                     ist_table[ost->source_index]->file_index,
2483                     ist_table[ost->source_index]->index,
2484                     ost->file_index,
2485                     ost->index);
2486             if (ost->sync_ist != ist_table[ost->source_index])
2487                 fprintf(stderr, " [sync #%d.%d]",
2488                         ost->sync_ist->file_index,
2489                         ost->sync_ist->index);
2490             fprintf(stderr, "\n");
2491         }
2492     }
2493
2494     if (ret) {
2495         fprintf(stderr, "%s\n", error);
2496         goto fail;
2497     }
2498
2499     if (want_sdp) {
2500         print_sdp(output_files, nb_output_files);
2501     }
2502
2503     if (!using_stdin && verbose >= 0) {
2504         fprintf(stderr, "Press [q] to stop encoding\n");
2505         url_set_interrupt_cb(decode_interrupt_cb);
2506     }
2507     term_init();
2508
2509     timer_start = av_gettime();
2510
2511     for(; received_sigterm == 0;) {
2512         int file_index, ist_index;
2513         AVPacket pkt;
2514         double ipts_min;
2515         double opts_min;
2516
2517     redo:
2518         ipts_min= 1e100;
2519         opts_min= 1e100;
2520         /* if 'q' pressed, exits */
2521         if (!using_stdin) {
2522             if (q_pressed)
2523                 break;
2524             /* read_key() returns 0 on EOF */
2525             key = read_key();
2526             if (key == 'q')
2527                 break;
2528         }
2529
2530         /* select the stream that we must read now by looking at the
2531            smallest output pts */
2532         file_index = -1;
2533         for(i=0;i<nb_ostreams;i++) {
2534             double ipts, opts;
2535             ost = ost_table[i];
2536             os = output_files[ost->file_index];
2537             ist = ist_table[ost->source_index];
2538             if(ist->is_past_recording_time || no_packet[ist->file_index])
2539                 continue;
2540                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2541             ipts = (double)ist->pts;
2542             if (!file_table[ist->file_index].eof_reached){
2543                 if(ipts < ipts_min) {
2544                     ipts_min = ipts;
2545                     if(input_sync ) file_index = ist->file_index;
2546                 }
2547                 if(opts < opts_min) {
2548                     opts_min = opts;
2549                     if(!input_sync) file_index = ist->file_index;
2550                 }
2551             }
2552             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2553                 file_index= -1;
2554                 break;
2555             }
2556         }
2557         /* if none, if is finished */
2558         if (file_index < 0) {
2559             if(no_packet_count){
2560                 no_packet_count=0;
2561                 memset(no_packet, 0, sizeof(no_packet));
2562                 usleep(10000);
2563                 continue;
2564             }
2565             break;
2566         }
2567
2568         /* finish if limit size exhausted */
2569         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2570             break;
2571
2572         /* read a frame from it and output it in the fifo */
2573         is = input_files[file_index];
2574         ret= av_read_frame(is, &pkt);
2575         if(ret == AVERROR(EAGAIN)){
2576             no_packet[file_index]=1;
2577             no_packet_count++;
2578             continue;
2579         }
2580         if (ret < 0) {
2581             file_table[file_index].eof_reached = 1;
2582             if (opt_shortest)
2583                 break;
2584             else
2585                 continue;
2586         }
2587
2588         no_packet_count=0;
2589         memset(no_packet, 0, sizeof(no_packet));
2590
2591         if (do_pkt_dump) {
2592             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2593         }
2594         /* the following test is needed in case new streams appear
2595            dynamically in stream : we ignore them */
2596         if (pkt.stream_index >= file_table[file_index].nb_streams)
2597             goto discard_packet;
2598         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2599         ist = ist_table[ist_index];
2600         if (ist->discard)
2601             goto discard_packet;
2602
2603         if (pkt.dts != AV_NOPTS_VALUE)
2604             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2605         if (pkt.pts != AV_NOPTS_VALUE)
2606             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2607
2608         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2609             && input_files_ts_scale[file_index][pkt.stream_index]){
2610             if(pkt.pts != AV_NOPTS_VALUE)
2611                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2612             if(pkt.dts != AV_NOPTS_VALUE)
2613                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2614         }
2615
2616 //        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);
2617         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2618             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2619             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2620             int64_t delta= pkt_dts - ist->next_pts;
2621             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2622                 input_files_ts_offset[ist->file_index]-= delta;
2623                 if (verbose > 2)
2624                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2625                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2626                 if(pkt.pts != AV_NOPTS_VALUE)
2627                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2628             }
2629         }
2630
2631         /* finish if recording time exhausted */
2632         if (recording_time != INT64_MAX &&
2633             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2634             ist->is_past_recording_time = 1;
2635             goto discard_packet;
2636         }
2637
2638         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2639         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2640
2641             if (verbose >= 0)
2642                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2643                         ist->file_index, ist->index);
2644             if (exit_on_error)
2645                 ffmpeg_exit(1);
2646             av_free_packet(&pkt);
2647             goto redo;
2648         }
2649
2650     discard_packet:
2651         av_free_packet(&pkt);
2652
2653         /* dump report by using the output first video and audio streams */
2654         print_report(output_files, ost_table, nb_ostreams, 0);
2655     }
2656
2657     /* at the end of stream, we must flush the decoder buffers */
2658     for(i=0;i<nb_istreams;i++) {
2659         ist = ist_table[i];
2660         if (ist->decoding_needed) {
2661             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2662         }
2663     }
2664
2665     term_exit();
2666
2667     /* write the trailer if needed and close file */
2668     for(i=0;i<nb_output_files;i++) {
2669         os = output_files[i];
2670         av_write_trailer(os);
2671     }
2672
2673     /* dump report by using the first video and audio streams */
2674     print_report(output_files, ost_table, nb_ostreams, 1);
2675
2676     /* close each encoder */
2677     for(i=0;i<nb_ostreams;i++) {
2678         ost = ost_table[i];
2679         if (ost->encoding_needed) {
2680             av_freep(&ost->st->codec->stats_in);
2681             avcodec_close(ost->st->codec);
2682         }
2683     }
2684
2685     /* close each decoder */
2686     for(i=0;i<nb_istreams;i++) {
2687         ist = ist_table[i];
2688         if (ist->decoding_needed) {
2689             avcodec_close(ist->st->codec);
2690         }
2691     }
2692 #if CONFIG_AVFILTER
2693     if (graph) {
2694         avfilter_graph_free(graph);
2695         av_freep(&graph);
2696     }
2697 #endif
2698
2699     /* finished ! */
2700     ret = 0;
2701
2702  fail:
2703     av_freep(&bit_buffer);
2704     av_free(file_table);
2705
2706     if (ist_table) {
2707         for(i=0;i<nb_istreams;i++) {
2708             ist = ist_table[i];
2709             av_free(ist);
2710         }
2711         av_free(ist_table);
2712     }
2713     if (ost_table) {
2714         for(i=0;i<nb_ostreams;i++) {
2715             ost = ost_table[i];
2716             if (ost) {
2717                 if (ost->st->stream_copy)
2718                     av_freep(&ost->st->codec->extradata);
2719                 if (ost->logfile) {
2720                     fclose(ost->logfile);
2721                     ost->logfile = NULL;
2722                 }
2723                 av_fifo_free(ost->fifo); /* works even if fifo is not
2724                                              initialized but set to zero */
2725                 av_freep(&ost->st->codec->subtitle_header);
2726                 av_free(ost->pict_tmp.data[0]);
2727                 av_free(ost->forced_kf_pts);
2728                 if (ost->video_resample)
2729                     sws_freeContext(ost->img_resample_ctx);
2730                 if (ost->resample)
2731                     audio_resample_close(ost->resample);
2732                 if (ost->reformat_ctx)
2733                     av_audio_convert_free(ost->reformat_ctx);
2734                 av_free(ost);
2735             }
2736         }
2737         av_free(ost_table);
2738     }
2739     return ret;
2740 }
2741
2742 static void opt_format(const char *arg)
2743 {
2744     last_asked_format = arg;
2745 }
2746
2747 static void opt_video_rc_override_string(const char *arg)
2748 {
2749     video_rc_override_string = arg;
2750 }
2751
2752 static int opt_me_threshold(const char *opt, const char *arg)
2753 {
2754     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2755     return 0;
2756 }
2757
2758 static int opt_verbose(const char *opt, const char *arg)
2759 {
2760     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2761     return 0;
2762 }
2763
2764 static int opt_frame_rate(const char *opt, const char *arg)
2765 {
2766     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2767         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2768         ffmpeg_exit(1);
2769     }
2770     return 0;
2771 }
2772
2773 static int opt_bitrate(const char *opt, const char *arg)
2774 {
2775     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2776
2777     opt_default(opt, arg);
2778
2779     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2780         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2781
2782     return 0;
2783 }
2784
2785 static int opt_frame_crop(const char *opt, const char *arg)
2786 {
2787     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2788     return AVERROR(EINVAL);
2789 }
2790
2791 static void opt_frame_size(const char *arg)
2792 {
2793     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2794         fprintf(stderr, "Incorrect frame size\n");
2795         ffmpeg_exit(1);
2796     }
2797 }
2798
2799 static int opt_pad(const char *opt, const char *arg) {
2800     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2801     return -1;
2802 }
2803
2804 static void opt_frame_pix_fmt(const char *arg)
2805 {
2806     if (strcmp(arg, "list")) {
2807         frame_pix_fmt = av_get_pix_fmt(arg);
2808         if (frame_pix_fmt == PIX_FMT_NONE) {
2809             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2810             ffmpeg_exit(1);
2811         }
2812     } else {
2813         show_pix_fmts();
2814         ffmpeg_exit(0);
2815     }
2816 }
2817
2818 static void opt_frame_aspect_ratio(const char *arg)
2819 {
2820     int x = 0, y = 0;
2821     double ar = 0;
2822     const char *p;
2823     char *end;
2824
2825     p = strchr(arg, ':');
2826     if (p) {
2827         x = strtol(arg, &end, 10);
2828         if (end == p)
2829             y = strtol(end+1, &end, 10);
2830         if (x > 0 && y > 0)
2831             ar = (double)x / (double)y;
2832     } else
2833         ar = strtod(arg, NULL);
2834
2835     if (!ar) {
2836         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2837         ffmpeg_exit(1);
2838     }
2839     frame_aspect_ratio = ar;
2840 }
2841
2842 static int opt_metadata(const char *opt, const char *arg)
2843 {
2844     char *mid= strchr(arg, '=');
2845
2846     if(!mid){
2847         fprintf(stderr, "Missing =\n");
2848         ffmpeg_exit(1);
2849     }
2850     *mid++= 0;
2851
2852     av_metadata_set2(&metadata, arg, mid, 0);
2853
2854     return 0;
2855 }
2856
2857 static void opt_qscale(const char *arg)
2858 {
2859     video_qscale = atof(arg);
2860     if (video_qscale <= 0 ||
2861         video_qscale > 255) {
2862         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2863         ffmpeg_exit(1);
2864     }
2865 }
2866
2867 static void opt_top_field_first(const char *arg)
2868 {
2869     top_field_first= atoi(arg);
2870 }
2871
2872 static int opt_thread_count(const char *opt, const char *arg)
2873 {
2874     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2875 #if !HAVE_THREADS
2876     if (verbose >= 0)
2877         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2878 #endif
2879     return 0;
2880 }
2881
2882 static void opt_audio_sample_fmt(const char *arg)
2883 {
2884     if (strcmp(arg, "list")) {
2885         audio_sample_fmt = av_get_sample_fmt(arg);
2886         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2887             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2888             ffmpeg_exit(1);
2889         }
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';