Add APIchanges entry for the av_metadata_copy() addition.
[ffmpeg:ffmpeg-mt.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             // add it to be filtered
1611             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1612                                      ist->pts,
1613                                      ist->st->codec->sample_aspect_ratio);
1614         }
1615 #endif
1616
1617         // preprocess audio (volume)
1618         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1619             if (audio_volume != 256) {
1620                 short *volp;
1621                 volp = samples;
1622                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1623                     int v = ((*volp) * audio_volume + 128) >> 8;
1624                     if (v < -32768) v = -32768;
1625                     if (v >  32767) v = 32767;
1626                     *volp++ = v;
1627                 }
1628             }
1629         }
1630
1631         /* frame rate emulation */
1632         if (rate_emu) {
1633             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1634             int64_t now = av_gettime() - ist->start;
1635             if (pts > now)
1636                 usleep(pts - now);
1637         }
1638 #if CONFIG_AVFILTER
1639         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1640             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1641 #endif
1642         /* if output time reached then transcode raw format,
1643            encode packets and output them */
1644         if (start_time == 0 || ist->pts >= start_time)
1645 #if CONFIG_AVFILTER
1646         while (frame_available) {
1647             AVRational ist_pts_tb;
1648             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1649                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1650             if (ist->picref)
1651                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1652 #endif
1653             for(i=0;i<nb_ostreams;i++) {
1654                 int frame_size;
1655
1656                 ost = ost_table[i];
1657                 if (ost->source_index == ist_index) {
1658                     os = output_files[ost->file_index];
1659
1660                     /* set the input output pts pairs */
1661                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1662
1663                     if (ost->encoding_needed) {
1664                         av_assert0(ist->decoding_needed);
1665                         switch(ost->st->codec->codec_type) {
1666                         case AVMEDIA_TYPE_AUDIO:
1667                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1668                             break;
1669                         case AVMEDIA_TYPE_VIDEO:
1670 #if CONFIG_AVFILTER
1671                             if (ist->picref->video)
1672                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1673 #endif
1674                             do_video_out(os, ost, ist, &picture, &frame_size);
1675                             if (vstats_filename && frame_size)
1676                                 do_video_stats(os, ost, frame_size);
1677                             break;
1678                         case AVMEDIA_TYPE_SUBTITLE:
1679                             do_subtitle_out(os, ost, ist, &subtitle,
1680                                             pkt->pts);
1681                             break;
1682                         default:
1683                             abort();
1684                         }
1685                     } else {
1686                         AVFrame avframe; //FIXME/XXX remove this
1687                         AVPacket opkt;
1688                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1689
1690                         av_init_packet(&opkt);
1691
1692                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1693                             continue;
1694
1695                         /* no reencoding needed : output the packet directly */
1696                         /* force the input stream PTS */
1697
1698                         avcodec_get_frame_defaults(&avframe);
1699                         ost->st->codec->coded_frame= &avframe;
1700                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1701
1702                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1703                             audio_size += data_size;
1704                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1705                             video_size += data_size;
1706                             ost->sync_opts++;
1707                         }
1708
1709                         opkt.stream_index= ost->index;
1710                         if(pkt->pts != AV_NOPTS_VALUE)
1711                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1712                         else
1713                             opkt.pts= AV_NOPTS_VALUE;
1714
1715                         if (pkt->dts == AV_NOPTS_VALUE)
1716                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1717                         else
1718                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1719                         opkt.dts -= ost_tb_start_time;
1720
1721                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1722                         opkt.flags= pkt->flags;
1723
1724                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1725                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1726                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1727                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1728                            ) {
1729                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1730                                 opkt.destruct= av_destruct_packet;
1731                         } else {
1732                             opkt.data = data_buf;
1733                             opkt.size = data_size;
1734                         }
1735
1736                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1737                         ost->st->codec->frame_number++;
1738                         ost->frame_number++;
1739                         av_free_packet(&opkt);
1740                     }
1741                 }
1742             }
1743
1744 #if CONFIG_AVFILTER
1745             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1746                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1747             if(ist->picref)
1748                 avfilter_unref_buffer(ist->picref);
1749         }
1750 #endif
1751         av_free(buffer_to_free);
1752         /* XXX: allocate the subtitles in the codec ? */
1753         if (subtitle_to_free) {
1754             avsubtitle_free(subtitle_to_free);
1755             subtitle_to_free = NULL;
1756         }
1757     }
1758  discard_packet:
1759     if (pkt == NULL) {
1760         /* EOF handling */
1761
1762         for(i=0;i<nb_ostreams;i++) {
1763             ost = ost_table[i];
1764             if (ost->source_index == ist_index) {
1765                 AVCodecContext *enc= ost->st->codec;
1766                 os = output_files[ost->file_index];
1767
1768                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1769                     continue;
1770                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1771                     continue;
1772
1773                 if (ost->encoding_needed) {
1774                     for(;;) {
1775                         AVPacket pkt;
1776                         int fifo_bytes;
1777                         av_init_packet(&pkt);
1778                         pkt.stream_index= ost->index;
1779
1780                         switch(ost->st->codec->codec_type) {
1781                         case AVMEDIA_TYPE_AUDIO:
1782                             fifo_bytes = av_fifo_size(ost->fifo);
1783                             ret = 0;
1784                             /* encode any samples remaining in fifo */
1785                             if (fifo_bytes > 0) {
1786                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1787                                 int fs_tmp = enc->frame_size;
1788
1789                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1790                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1791                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1792                                 } else { /* pad */
1793                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1794                                     if (allocated_audio_buf_size < frame_bytes)
1795                                         ffmpeg_exit(1);
1796                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1797                                 }
1798
1799                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1800                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1801                                                           ost->st->time_base.num, enc->sample_rate);
1802                                 enc->frame_size = fs_tmp;
1803                             }
1804                             if(ret <= 0) {
1805                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1806                             }
1807                             if (ret < 0) {
1808                                 fprintf(stderr, "Audio encoding failed\n");
1809                                 ffmpeg_exit(1);
1810                             }
1811                             audio_size += ret;
1812                             pkt.flags |= AV_PKT_FLAG_KEY;
1813                             break;
1814                         case AVMEDIA_TYPE_VIDEO:
1815                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1816                             if (ret < 0) {
1817                                 fprintf(stderr, "Video encoding failed\n");
1818                                 ffmpeg_exit(1);
1819                             }
1820                             video_size += ret;
1821                             if(enc->coded_frame && enc->coded_frame->key_frame)
1822                                 pkt.flags |= AV_PKT_FLAG_KEY;
1823                             if (ost->logfile && enc->stats_out) {
1824                                 fprintf(ost->logfile, "%s", enc->stats_out);
1825                             }
1826                             break;
1827                         default:
1828                             ret=-1;
1829                         }
1830
1831                         if(ret<=0)
1832                             break;
1833                         pkt.data= bit_buffer;
1834                         pkt.size= ret;
1835                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1836                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1837                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1838                     }
1839                 }
1840             }
1841         }
1842     }
1843
1844     return 0;
1845  fail_decode:
1846     return -1;
1847 }
1848
1849 static void print_sdp(AVFormatContext **avc, int n)
1850 {
1851     char sdp[2048];
1852
1853     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1854     printf("SDP:\n%s\n", sdp);
1855     fflush(stdout);
1856 }
1857
1858 static int copy_chapters(int infile, int outfile)
1859 {
1860     AVFormatContext *is = input_files[infile];
1861     AVFormatContext *os = output_files[outfile];
1862     int i;
1863
1864     for (i = 0; i < is->nb_chapters; i++) {
1865         AVChapter *in_ch = is->chapters[i], *out_ch;
1866         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1867                                       AV_TIME_BASE_Q, in_ch->time_base);
1868         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1869                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1870
1871
1872         if (in_ch->end < ts_off)
1873             continue;
1874         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1875             break;
1876
1877         out_ch = av_mallocz(sizeof(AVChapter));
1878         if (!out_ch)
1879             return AVERROR(ENOMEM);
1880
1881         out_ch->id        = in_ch->id;
1882         out_ch->time_base = in_ch->time_base;
1883         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1884         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1885
1886         if (metadata_chapters_autocopy)
1887             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1888
1889         os->nb_chapters++;
1890         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1891         if (!os->chapters)
1892             return AVERROR(ENOMEM);
1893         os->chapters[os->nb_chapters - 1] = out_ch;
1894     }
1895     return 0;
1896 }
1897
1898 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1899                                     AVCodecContext *avctx)
1900 {
1901     char *p;
1902     int n = 1, i;
1903     int64_t t;
1904
1905     for (p = kf; *p; p++)
1906         if (*p == ',')
1907             n++;
1908     ost->forced_kf_count = n;
1909     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1910     if (!ost->forced_kf_pts) {
1911         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1912         ffmpeg_exit(1);
1913     }
1914     for (i = 0; i < n; i++) {
1915         p = i ? strchr(p, ',') + 1 : kf;
1916         t = parse_time_or_die("force_key_frames", p, 1);
1917         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1918     }
1919 }
1920
1921 /*
1922  * The following code is the main loop of the file converter
1923  */
1924 static int transcode(AVFormatContext **output_files,
1925                      int nb_output_files,
1926                      AVFormatContext **input_files,
1927                      int nb_input_files,
1928                      AVStreamMap *stream_maps, int nb_stream_maps)
1929 {
1930     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1931     AVFormatContext *is, *os;
1932     AVCodecContext *codec, *icodec;
1933     AVOutputStream *ost, **ost_table = NULL;
1934     AVInputStream *ist, **ist_table = NULL;
1935     AVInputFile *file_table;
1936     char error[1024];
1937     int key;
1938     int want_sdp = 1;
1939     uint8_t no_packet[MAX_FILES]={0};
1940     int no_packet_count=0;
1941
1942     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1943     if (!file_table)
1944         goto fail;
1945
1946     /* input stream init */
1947     j = 0;
1948     for(i=0;i<nb_input_files;i++) {
1949         is = input_files[i];
1950         file_table[i].ist_index = j;
1951         file_table[i].nb_streams = is->nb_streams;
1952         j += is->nb_streams;
1953     }
1954     nb_istreams = j;
1955
1956     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1957     if (!ist_table)
1958         goto fail;
1959
1960     for(i=0;i<nb_istreams;i++) {
1961         ist = av_mallocz(sizeof(AVInputStream));
1962         if (!ist)
1963             goto fail;
1964         ist_table[i] = ist;
1965     }
1966     j = 0;
1967     for(i=0;i<nb_input_files;i++) {
1968         is = input_files[i];
1969         for(k=0;k<is->nb_streams;k++) {
1970             ist = ist_table[j++];
1971             ist->st = is->streams[k];
1972             ist->file_index = i;
1973             ist->index = k;
1974             ist->discard = 1; /* the stream is discarded by default
1975                                  (changed later) */
1976
1977             if (rate_emu) {
1978                 ist->start = av_gettime();
1979             }
1980         }
1981     }
1982
1983     /* output stream init */
1984     nb_ostreams = 0;
1985     for(i=0;i<nb_output_files;i++) {
1986         os = output_files[i];
1987         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1988             dump_format(output_files[i], i, output_files[i]->filename, 1);
1989             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1990             ret = AVERROR(EINVAL);
1991             goto fail;
1992         }
1993         nb_ostreams += os->nb_streams;
1994     }
1995     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1996         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1997         ret = AVERROR(EINVAL);
1998         goto fail;
1999     }
2000
2001     /* Sanity check the mapping args -- do the input files & streams exist? */
2002     for(i=0;i<nb_stream_maps;i++) {
2003         int fi = stream_maps[i].file_index;
2004         int si = stream_maps[i].stream_index;
2005
2006         if (fi < 0 || fi > nb_input_files - 1 ||
2007             si < 0 || si > file_table[fi].nb_streams - 1) {
2008             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2009             ret = AVERROR(EINVAL);
2010             goto fail;
2011         }
2012         fi = stream_maps[i].sync_file_index;
2013         si = stream_maps[i].sync_stream_index;
2014         if (fi < 0 || fi > nb_input_files - 1 ||
2015             si < 0 || si > file_table[fi].nb_streams - 1) {
2016             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2017             ret = AVERROR(EINVAL);
2018             goto fail;
2019         }
2020     }
2021
2022     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2023     if (!ost_table)
2024         goto fail;
2025     n = 0;
2026     for(k=0;k<nb_output_files;k++) {
2027         os = output_files[k];
2028         for(i=0;i<os->nb_streams;i++,n++) {
2029             int found;
2030             ost = ost_table[n] = output_streams_for_file[k][i];
2031             ost->st = os->streams[i];
2032             if (nb_stream_maps > 0) {
2033                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2034                     stream_maps[n].stream_index;
2035
2036                 /* Sanity check that the stream types match */
2037                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2038                     int i= ost->file_index;
2039                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2040                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2041                         stream_maps[n].file_index, stream_maps[n].stream_index,
2042                         ost->file_index, ost->index);
2043                     ffmpeg_exit(1);
2044                 }
2045
2046             } else {
2047                 int best_nb_frames=-1;
2048                 /* get corresponding input stream index : we select the first one with the right type */
2049                 found = 0;
2050                 for(j=0;j<nb_istreams;j++) {
2051                     int skip=0;
2052                     ist = ist_table[j];
2053                     if(opt_programid){
2054                         int pi,si;
2055                         AVFormatContext *f= input_files[ ist->file_index ];
2056                         skip=1;
2057                         for(pi=0; pi<f->nb_programs; pi++){
2058                             AVProgram *p= f->programs[pi];
2059                             if(p->id == opt_programid)
2060                                 for(si=0; si<p->nb_stream_indexes; si++){
2061                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2062                                         skip=0;
2063                                 }
2064                         }
2065                     }
2066                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2067                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2068                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2069                             best_nb_frames= ist->st->codec_info_nb_frames;
2070                             ost->source_index = j;
2071                             found = 1;
2072                         }
2073                     }
2074                 }
2075
2076                 if (!found) {
2077                     if(! opt_programid) {
2078                         /* try again and reuse existing stream */
2079                         for(j=0;j<nb_istreams;j++) {
2080                             ist = ist_table[j];
2081                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2082                                 && ist->st->discard != AVDISCARD_ALL) {
2083                                 ost->source_index = j;
2084                                 found = 1;
2085                             }
2086                         }
2087                     }
2088                     if (!found) {
2089                         int i= ost->file_index;
2090                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2091                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2092                                 ost->file_index, ost->index);
2093                         ffmpeg_exit(1);
2094                     }
2095                 }
2096             }
2097             ist = ist_table[ost->source_index];
2098             ist->discard = 0;
2099             ost->sync_ist = (nb_stream_maps > 0) ?
2100                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2101                          stream_maps[n].sync_stream_index] : ist;
2102         }
2103     }
2104
2105     /* for each output stream, we compute the right encoding parameters */
2106     for(i=0;i<nb_ostreams;i++) {
2107         ost = ost_table[i];
2108         os = output_files[ost->file_index];
2109         ist = ist_table[ost->source_index];
2110
2111         codec = ost->st->codec;
2112         icodec = ist->st->codec;
2113
2114         if (metadata_streams_autocopy)
2115             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2116                              AV_METADATA_DONT_OVERWRITE);
2117
2118         ost->st->disposition = ist->st->disposition;
2119         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2120         codec->chroma_sample_location = icodec->chroma_sample_location;
2121
2122         if (ost->st->stream_copy) {
2123             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2124
2125             if (extra_size > INT_MAX)
2126                 goto fail;
2127
2128             /* if stream_copy is selected, no need to decode or encode */
2129             codec->codec_id = icodec->codec_id;
2130             codec->codec_type = icodec->codec_type;
2131
2132             if(!codec->codec_tag){
2133                 if(   !os->oformat->codec_tag
2134                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2135                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2136                     codec->codec_tag = icodec->codec_tag;
2137             }
2138
2139             codec->bit_rate = icodec->bit_rate;
2140             codec->rc_max_rate    = icodec->rc_max_rate;
2141             codec->rc_buffer_size = icodec->rc_buffer_size;
2142             codec->extradata= av_mallocz(extra_size);
2143             if (!codec->extradata)
2144                 goto fail;
2145             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2146             codec->extradata_size= icodec->extradata_size;
2147             if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2148                 codec->time_base = icodec->time_base;
2149                 codec->time_base.num *= icodec->ticks_per_frame;
2150                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2151                           codec->time_base.num, codec->time_base.den, INT_MAX);
2152             }else
2153                 codec->time_base = ist->st->time_base;
2154             switch(codec->codec_type) {
2155             case AVMEDIA_TYPE_AUDIO:
2156                 if(audio_volume != 256) {
2157                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2158                     ffmpeg_exit(1);
2159                 }
2160                 codec->channel_layout = icodec->channel_layout;
2161                 codec->sample_rate = icodec->sample_rate;
2162                 codec->channels = icodec->channels;
2163                 codec->frame_size = icodec->frame_size;
2164                 codec->block_align= icodec->block_align;
2165                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2166                     codec->block_align= 0;
2167                 if(codec->codec_id == CODEC_ID_AC3)
2168                     codec->block_align= 0;
2169                 break;
2170             case AVMEDIA_TYPE_VIDEO:
2171                 codec->pix_fmt = icodec->pix_fmt;
2172                 codec->width = icodec->width;
2173                 codec->height = icodec->height;
2174                 codec->has_b_frames = icodec->has_b_frames;
2175                 break;
2176             case AVMEDIA_TYPE_SUBTITLE:
2177                 codec->width = icodec->width;
2178                 codec->height = icodec->height;
2179                 break;
2180             default:
2181                 abort();
2182             }
2183         } else {
2184             switch(codec->codec_type) {
2185             case AVMEDIA_TYPE_AUDIO:
2186                 ost->fifo= av_fifo_alloc(1024);
2187                 if(!ost->fifo)
2188                     goto fail;
2189                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2190                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2191                 icodec->request_channels = codec->channels;
2192                 ist->decoding_needed = 1;
2193                 ost->encoding_needed = 1;
2194                 ost->resample_sample_fmt  = icodec->sample_fmt;
2195                 ost->resample_sample_rate = icodec->sample_rate;
2196                 ost->resample_channels    = icodec->channels;
2197                 break;
2198             case AVMEDIA_TYPE_VIDEO:
2199                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2200                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2201                     ffmpeg_exit(1);
2202                 }
2203                 ost->video_resample = (codec->width != icodec->width   ||
2204                                        codec->height != icodec->height ||
2205                         (codec->pix_fmt != icodec->pix_fmt));
2206                 if (ost->video_resample) {
2207 #if !CONFIG_AVFILTER
2208                     avcodec_get_frame_defaults(&ost->pict_tmp);
2209                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2210                                          codec->width, codec->height)) {
2211                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2212                         ffmpeg_exit(1);
2213                     }
2214                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2215                     ost->img_resample_ctx = sws_getContext(
2216                         icodec->width,
2217                         icodec->height,
2218                             icodec->pix_fmt,
2219                             codec->width,
2220                             codec->height,
2221                             codec->pix_fmt,
2222                             sws_flags, NULL, NULL, NULL);
2223                     if (ost->img_resample_ctx == NULL) {
2224                         fprintf(stderr, "Cannot get resampling context\n");
2225                         ffmpeg_exit(1);
2226                     }
2227
2228                     ost->original_height = icodec->height;
2229                     ost->original_width  = icodec->width;
2230 #endif
2231                     codec->bits_per_raw_sample= 0;
2232                 }
2233                 ost->resample_height = icodec->height;
2234                 ost->resample_width  = icodec->width;
2235                 ost->resample_pix_fmt= icodec->pix_fmt;
2236                 ost->encoding_needed = 1;
2237                 ist->decoding_needed = 1;
2238
2239 #if CONFIG_AVFILTER
2240                 if (configure_filters(ist, ost)) {
2241                     fprintf(stderr, "Error opening filters!\n");
2242                     exit(1);
2243                 }
2244 #endif
2245                 break;
2246             case AVMEDIA_TYPE_SUBTITLE:
2247                 ost->encoding_needed = 1;
2248                 ist->decoding_needed = 1;
2249                 break;
2250             default:
2251                 abort();
2252                 break;
2253             }
2254             /* two pass mode */
2255             if (ost->encoding_needed &&
2256                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2257                 char logfilename[1024];
2258                 FILE *f;
2259
2260                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2261                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2262                          i);
2263                 if (codec->flags & CODEC_FLAG_PASS1) {
2264                     f = fopen(logfilename, "wb");
2265                     if (!f) {
2266                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2267                         ffmpeg_exit(1);
2268                     }
2269                     ost->logfile = f;
2270                 } else {
2271                     char  *logbuffer;
2272                     size_t logbuffer_size;
2273                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2274                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2275                         ffmpeg_exit(1);
2276                     }
2277                     codec->stats_in = logbuffer;
2278                 }
2279             }
2280         }
2281         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2282             int size= codec->width * codec->height;
2283             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2284         }
2285     }
2286
2287     if (!bit_buffer)
2288         bit_buffer = av_malloc(bit_buffer_size);
2289     if (!bit_buffer) {
2290         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2291                 bit_buffer_size);
2292         ret = AVERROR(ENOMEM);
2293         goto fail;
2294     }
2295
2296     /* open each encoder */
2297     for(i=0;i<nb_ostreams;i++) {
2298         ost = ost_table[i];
2299         if (ost->encoding_needed) {
2300             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2301             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2302             if (!codec)
2303                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2304             if (!codec) {
2305                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2306                          ost->st->codec->codec_id, ost->file_index, ost->index);
2307                 ret = AVERROR(EINVAL);
2308                 goto dump_format;
2309             }
2310             if (dec->subtitle_header) {
2311                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2312                 if (!ost->st->codec->subtitle_header) {
2313                     ret = AVERROR(ENOMEM);
2314                     goto dump_format;
2315                 }
2316                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2317                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2318             }
2319             if (avcodec_open(ost->st->codec, codec) < 0) {
2320                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2321                         ost->file_index, ost->index);
2322                 ret = AVERROR(EINVAL);
2323                 goto dump_format;
2324             }
2325             extra_size += ost->st->codec->extradata_size;
2326         }
2327     }
2328
2329     /* open each decoder */
2330     for(i=0;i<nb_istreams;i++) {
2331         ist = ist_table[i];
2332         if (ist->decoding_needed) {
2333             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2334             if (!codec)
2335                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2336             if (!codec) {
2337                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2338                         ist->st->codec->codec_id, ist->file_index, ist->index);
2339                 ret = AVERROR(EINVAL);
2340                 goto dump_format;
2341             }
2342             if (avcodec_open(ist->st->codec, codec) < 0) {
2343                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2344                         ist->file_index, ist->index);
2345                 ret = AVERROR(EINVAL);
2346                 goto dump_format;
2347             }
2348             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2349             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2350         }
2351     }
2352
2353     /* init pts */
2354     for(i=0;i<nb_istreams;i++) {
2355         AVStream *st;
2356         ist = ist_table[i];
2357         st= ist->st;
2358         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2359         ist->next_pts = AV_NOPTS_VALUE;
2360         init_pts_correction(&ist->pts_ctx);
2361         ist->is_start = 1;
2362     }
2363
2364     /* set meta data information from input file if required */
2365     for (i=0;i<nb_meta_data_maps;i++) {
2366         AVFormatContext *files[2];
2367         AVMetadata      **meta[2];
2368         int j;
2369
2370 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2371         if ((index) < 0 || (index) >= (nb_elems)) {\
2372             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2373                      (desc), (index));\
2374             ret = AVERROR(EINVAL);\
2375             goto dump_format;\
2376         }
2377
2378         int out_file_index = meta_data_maps[i][0].file;
2379         int in_file_index = meta_data_maps[i][1].file;
2380         if (in_file_index < 0 || out_file_index < 0)
2381             continue;
2382         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2383         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2384
2385         files[0] = output_files[out_file_index];
2386         files[1] = input_files[in_file_index];
2387
2388         for (j = 0; j < 2; j++) {
2389             AVMetaDataMap *map = &meta_data_maps[i][j];
2390
2391             switch (map->type) {
2392             case 'g':
2393                 meta[j] = &files[j]->metadata;
2394                 break;
2395             case 's':
2396                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2397                 meta[j] = &files[j]->streams[map->index]->metadata;
2398                 break;
2399             case 'c':
2400                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2401                 meta[j] = &files[j]->chapters[map->index]->metadata;
2402                 break;
2403             case 'p':
2404                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2405                 meta[j] = &files[j]->programs[map->index]->metadata;
2406                 break;
2407             }
2408         }
2409
2410         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2411     }
2412
2413     /* copy global metadata by default */
2414     if (metadata_global_autocopy) {
2415
2416         for (i = 0; i < nb_output_files; i++)
2417             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2418                              AV_METADATA_DONT_OVERWRITE);
2419     }
2420
2421     /* copy chapters according to chapter maps */
2422     for (i = 0; i < nb_chapter_maps; i++) {
2423         int infile  = chapter_maps[i].in_file;
2424         int outfile = chapter_maps[i].out_file;
2425
2426         if (infile < 0 || outfile < 0)
2427             continue;
2428         if (infile >= nb_input_files) {
2429             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2430             ret = AVERROR(EINVAL);
2431             goto dump_format;
2432         }
2433         if (outfile >= nb_output_files) {
2434             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2435             ret = AVERROR(EINVAL);
2436             goto dump_format;
2437         }
2438         copy_chapters(infile, outfile);
2439     }
2440
2441     /* copy chapters from the first input file that has them*/
2442     if (!nb_chapter_maps)
2443         for (i = 0; i < nb_input_files; i++) {
2444             if (!input_files[i]->nb_chapters)
2445                 continue;
2446
2447             for (j = 0; j < nb_output_files; j++)
2448                 if ((ret = copy_chapters(i, j)) < 0)
2449                     goto dump_format;
2450             break;
2451         }
2452
2453     /* open files and write file headers */
2454     for(i=0;i<nb_output_files;i++) {
2455         os = output_files[i];
2456         if (av_write_header(os) < 0) {
2457             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2458             ret = AVERROR(EINVAL);
2459             goto dump_format;
2460         }
2461         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2462             want_sdp = 0;
2463         }
2464     }
2465
2466  dump_format:
2467     /* dump the file output parameters - cannot be done before in case
2468        of stream copy */
2469     for(i=0;i<nb_output_files;i++) {
2470         dump_format(output_files[i], i, output_files[i]->filename, 1);
2471     }
2472
2473     /* dump the stream mapping */
2474     if (verbose >= 0) {
2475         fprintf(stderr, "Stream mapping:\n");
2476         for(i=0;i<nb_ostreams;i++) {
2477             ost = ost_table[i];
2478             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2479                     ist_table[ost->source_index]->file_index,
2480                     ist_table[ost->source_index]->index,
2481                     ost->file_index,
2482                     ost->index);
2483             if (ost->sync_ist != ist_table[ost->source_index])
2484                 fprintf(stderr, " [sync #%d.%d]",
2485                         ost->sync_ist->file_index,
2486                         ost->sync_ist->index);
2487             fprintf(stderr, "\n");
2488         }
2489     }
2490
2491     if (ret) {
2492         fprintf(stderr, "%s\n", error);
2493         goto fail;
2494     }
2495
2496     if (want_sdp) {
2497         print_sdp(output_files, nb_output_files);
2498     }
2499
2500     if (!using_stdin && verbose >= 0) {
2501         fprintf(stderr, "Press [q] to stop encoding\n");
2502         url_set_interrupt_cb(decode_interrupt_cb);
2503     }
2504     term_init();
2505
2506     timer_start = av_gettime();
2507
2508     for(; received_sigterm == 0;) {
2509         int file_index, ist_index;
2510         AVPacket pkt;
2511         double ipts_min;
2512         double opts_min;
2513
2514     redo:
2515         ipts_min= 1e100;
2516         opts_min= 1e100;
2517         /* if 'q' pressed, exits */
2518         if (!using_stdin) {
2519             if (q_pressed)
2520                 break;
2521             /* read_key() returns 0 on EOF */
2522             key = read_key();
2523             if (key == 'q')
2524                 break;
2525         }
2526
2527         /* select the stream that we must read now by looking at the
2528            smallest output pts */
2529         file_index = -1;
2530         for(i=0;i<nb_ostreams;i++) {
2531             double ipts, opts;
2532             ost = ost_table[i];
2533             os = output_files[ost->file_index];
2534             ist = ist_table[ost->source_index];
2535             if(ist->is_past_recording_time || no_packet[ist->file_index])
2536                 continue;
2537                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2538             ipts = (double)ist->pts;
2539             if (!file_table[ist->file_index].eof_reached){
2540                 if(ipts < ipts_min) {
2541                     ipts_min = ipts;
2542                     if(input_sync ) file_index = ist->file_index;
2543                 }
2544                 if(opts < opts_min) {
2545                     opts_min = opts;
2546                     if(!input_sync) file_index = ist->file_index;
2547                 }
2548             }
2549             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2550                 file_index= -1;
2551                 break;
2552             }
2553         }
2554         /* if none, if is finished */
2555         if (file_index < 0) {
2556             if(no_packet_count){
2557                 no_packet_count=0;
2558                 memset(no_packet, 0, sizeof(no_packet));
2559                 usleep(10000);
2560                 continue;
2561             }
2562             break;
2563         }
2564
2565         /* finish if limit size exhausted */
2566         if (limit_filesize != 0 && limit_filesize <= url_ftell(output_files[0]->pb))
2567             break;
2568
2569         /* read a frame from it and output it in the fifo */
2570         is = input_files[file_index];
2571         ret= av_read_frame(is, &pkt);
2572         if(ret == AVERROR(EAGAIN)){
2573             no_packet[file_index]=1;
2574             no_packet_count++;
2575             continue;
2576         }
2577         if (ret < 0) {
2578             file_table[file_index].eof_reached = 1;
2579             if (opt_shortest)
2580                 break;
2581             else
2582                 continue;
2583         }
2584
2585         no_packet_count=0;
2586         memset(no_packet, 0, sizeof(no_packet));
2587
2588         if (do_pkt_dump) {
2589             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2590         }
2591         /* the following test is needed in case new streams appear
2592            dynamically in stream : we ignore them */
2593         if (pkt.stream_index >= file_table[file_index].nb_streams)
2594             goto discard_packet;
2595         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2596         ist = ist_table[ist_index];
2597         if (ist->discard)
2598             goto discard_packet;
2599
2600         if (pkt.dts != AV_NOPTS_VALUE)
2601             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2602         if (pkt.pts != AV_NOPTS_VALUE)
2603             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2604
2605         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2606             && input_files_ts_scale[file_index][pkt.stream_index]){
2607             if(pkt.pts != AV_NOPTS_VALUE)
2608                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2609             if(pkt.dts != AV_NOPTS_VALUE)
2610                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2611         }
2612
2613 //        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);
2614         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2615             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2616             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2617             int64_t delta= pkt_dts - ist->next_pts;
2618             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2619                 input_files_ts_offset[ist->file_index]-= delta;
2620                 if (verbose > 2)
2621                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2622                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2623                 if(pkt.pts != AV_NOPTS_VALUE)
2624                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2625             }
2626         }
2627
2628         /* finish if recording time exhausted */
2629         if (recording_time != INT64_MAX &&
2630             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2631             ist->is_past_recording_time = 1;
2632             goto discard_packet;
2633         }
2634
2635         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2636         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2637
2638             if (verbose >= 0)
2639                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2640                         ist->file_index, ist->index);
2641             if (exit_on_error)
2642                 ffmpeg_exit(1);
2643             av_free_packet(&pkt);
2644             goto redo;
2645         }
2646
2647     discard_packet:
2648         av_free_packet(&pkt);
2649
2650         /* dump report by using the output first video and audio streams */
2651         print_report(output_files, ost_table, nb_ostreams, 0);
2652     }
2653
2654     /* at the end of stream, we must flush the decoder buffers */
2655     for(i=0;i<nb_istreams;i++) {
2656         ist = ist_table[i];
2657         if (ist->decoding_needed) {
2658             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2659         }
2660     }
2661
2662     term_exit();
2663
2664     /* write the trailer if needed and close file */
2665     for(i=0;i<nb_output_files;i++) {
2666         os = output_files[i];
2667         av_write_trailer(os);
2668     }
2669
2670     /* dump report by using the first video and audio streams */
2671     print_report(output_files, ost_table, nb_ostreams, 1);
2672
2673     /* close each encoder */
2674     for(i=0;i<nb_ostreams;i++) {
2675         ost = ost_table[i];
2676         if (ost->encoding_needed) {
2677             av_freep(&ost->st->codec->stats_in);
2678             avcodec_close(ost->st->codec);
2679         }
2680     }
2681
2682     /* close each decoder */
2683     for(i=0;i<nb_istreams;i++) {
2684         ist = ist_table[i];
2685         if (ist->decoding_needed) {
2686             avcodec_close(ist->st->codec);
2687         }
2688     }
2689 #if CONFIG_AVFILTER
2690     if (graph) {
2691         avfilter_graph_free(graph);
2692         av_freep(&graph);
2693     }
2694 #endif
2695
2696     /* finished ! */
2697     ret = 0;
2698
2699  fail:
2700     av_freep(&bit_buffer);
2701     av_free(file_table);
2702
2703     if (ist_table) {
2704         for(i=0;i<nb_istreams;i++) {
2705             ist = ist_table[i];
2706             av_free(ist);
2707         }
2708         av_free(ist_table);
2709     }
2710     if (ost_table) {
2711         for(i=0;i<nb_ostreams;i++) {
2712             ost = ost_table[i];
2713             if (ost) {
2714                 if (ost->st->stream_copy)
2715                     av_freep(&ost->st->codec->extradata);
2716                 if (ost->logfile) {
2717                     fclose(ost->logfile);
2718                     ost->logfile = NULL;
2719                 }
2720                 av_fifo_free(ost->fifo); /* works even if fifo is not
2721                                              initialized but set to zero */
2722                 av_freep(&ost->st->codec->subtitle_header);
2723                 av_free(ost->pict_tmp.data[0]);
2724                 av_free(ost->forced_kf_pts);
2725                 if (ost->video_resample)
2726                     sws_freeContext(ost->img_resample_ctx);
2727                 if (ost->resample)
2728                     audio_resample_close(ost->resample);
2729                 if (ost->reformat_ctx)
2730                     av_audio_convert_free(ost->reformat_ctx);
2731                 av_free(ost);
2732             }
2733         }
2734         av_free(ost_table);
2735     }
2736     return ret;
2737 }
2738
2739 static void opt_format(const char *arg)
2740 {
2741     last_asked_format = arg;
2742 }
2743
2744 static void opt_video_rc_override_string(const char *arg)
2745 {
2746     video_rc_override_string = arg;
2747 }
2748
2749 static int opt_me_threshold(const char *opt, const char *arg)
2750 {
2751     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2752     return 0;
2753 }
2754
2755 static int opt_verbose(const char *opt, const char *arg)
2756 {
2757     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2758     return 0;
2759 }
2760
2761 static int opt_frame_rate(const char *opt, const char *arg)
2762 {
2763     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2764         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2765         ffmpeg_exit(1);
2766     }
2767     return 0;
2768 }
2769
2770 static int opt_bitrate(const char *opt, const char *arg)
2771 {
2772     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2773
2774     opt_default(opt, arg);
2775
2776     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2777         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2778
2779     return 0;
2780 }
2781
2782 static int opt_frame_crop(const char *opt, const char *arg)
2783 {
2784     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2785     return AVERROR(EINVAL);
2786 }
2787
2788 static void opt_frame_size(const char *arg)
2789 {
2790     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2791         fprintf(stderr, "Incorrect frame size\n");
2792         ffmpeg_exit(1);
2793     }
2794 }
2795
2796 static int opt_pad(const char *opt, const char *arg) {
2797     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2798     return -1;
2799 }
2800
2801 static void opt_frame_pix_fmt(const char *arg)
2802 {
2803     if (strcmp(arg, "list")) {
2804         frame_pix_fmt = av_get_pix_fmt(arg);
2805         if (frame_pix_fmt == PIX_FMT_NONE) {
2806             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2807             ffmpeg_exit(1);
2808         }
2809     } else {
2810         show_pix_fmts();
2811         ffmpeg_exit(0);
2812     }
2813 }
2814
2815 static void opt_frame_aspect_ratio(const char *arg)
2816 {
2817     int x = 0, y = 0;
2818     double ar = 0;
2819     const char *p;
2820     char *end;
2821
2822     p = strchr(arg, ':');
2823     if (p) {
2824         x = strtol(arg, &end, 10);
2825         if (end == p)
2826             y = strtol(end+1, &end, 10);
2827         if (x > 0 && y > 0)
2828             ar = (double)x / (double)y;
2829     } else
2830         ar = strtod(arg, NULL);
2831
2832     if (!ar) {
2833         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2834         ffmpeg_exit(1);
2835     }
2836     frame_aspect_ratio = ar;
2837 }
2838
2839 static int opt_metadata(const char *opt, const char *arg)
2840 {
2841     char *mid= strchr(arg, '=');
2842
2843     if(!mid){
2844         fprintf(stderr, "Missing =\n");
2845         ffmpeg_exit(1);
2846     }
2847     *mid++= 0;
2848
2849     av_metadata_set2(&metadata, arg, mid, 0);
2850
2851     return 0;
2852 }
2853
2854 static void opt_qscale(const char *arg)
2855 {
2856     video_qscale = atof(arg);
2857     if (video_qscale <= 0 ||
2858         video_qscale > 255) {
2859         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2860         ffmpeg_exit(1);
2861     }
2862 }
2863
2864 static void opt_top_field_first(const char *arg)
2865 {
2866     top_field_first= atoi(arg);
2867 }
2868
2869 static int opt_thread_count(const char *opt, const char *arg)
2870 {
2871     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2872 #if !HAVE_THREADS
2873     if (verbose >= 0)
2874         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2875 #endif
2876     return 0;
2877 }
2878
2879 static void opt_audio_sample_fmt(const char *arg)
2880 {
2881    &nb