ffmpeg: fix two unused variables warnings.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #include "libavformat/ffm.h" // not public API
50
51 #if CONFIG_AVFILTER
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsink_buffer.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int disabled;           /** 1 is this mapping is disabled by a negative map */
95     int file_index;
96     int stream_index;
97     int sync_file_index;
98     int sync_stream_index;
99 } StreamMap;
100
101 /**
102  * select an input file for an output file
103  */
104 typedef struct MetadataMap {
105     int  file;      ///< file index
106     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
107     int  index;     ///< stream/chapter/program number
108 } MetadataMap;
109
110 static const OptionDef options[];
111
112 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
113 static const char *last_asked_format = NULL;
114 static AVDictionary *ts_scale;
115
116 static StreamMap *stream_maps = NULL;
117 static int nb_stream_maps;
118
119 static AVDictionary *codec_names;
120
121 /* first item specifies output metadata, second is input */
122 static MetadataMap (*meta_data_maps)[2] = NULL;
123 static int nb_meta_data_maps;
124 static int metadata_global_autocopy   = 1;
125 static int metadata_streams_autocopy  = 1;
126 static int metadata_chapters_autocopy = 1;
127
128 static int chapters_input_file = INT_MAX;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width  = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static int frame_bits_per_raw_sample = 0;
139 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
140 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
141 static AVRational frame_rate;
142 static float video_qscale = 0;
143 static uint16_t *intra_matrix = NULL;
144 static uint16_t *inter_matrix = NULL;
145 static const char *video_rc_override_string=NULL;
146 static int video_disable = 0;
147 static int video_discard = 0;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quant = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int loop_input = 0;
156 static int loop_output = AVFMT_NOOUTPUTLOOP;
157 static int qp_hist = 0;
158 #if CONFIG_AVFILTER
159 static char *vfilters = NULL;
160 #endif
161
162 static int intra_only = 0;
163 static int audio_sample_rate = 0;
164 #define QSCALE_NONE -99999
165 static float audio_qscale = QSCALE_NONE;
166 static int audio_disable = 0;
167 static int audio_channels = 0;
168 static unsigned int audio_codec_tag = 0;
169 static char *audio_language = NULL;
170
171 static int subtitle_disable = 0;
172 static char *subtitle_language = NULL;
173 static unsigned int subtitle_codec_tag = 0;
174
175 static int data_disable = 0;
176 static unsigned int data_codec_tag = 0;
177
178 static float mux_preload= 0.5;
179 static float mux_max_delay= 0.7;
180
181 static int64_t recording_time = INT64_MAX;
182 static int64_t start_time = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static AVDictionary *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static const char *pass_logfilename_prefix;
192 static int video_sync_method= -1;
193 static int audio_sync_method= 0;
194 static float audio_drift_threshold= 0.1;
195 static int copy_ts= 0;
196 static int copy_tb= 0;
197 static int opt_shortest = 0;
198 static char *vstats_filename;
199 static FILE *vstats_file;
200 static int opt_programid = 0;
201 static int copy_initial_nonkeyframes = 0;
202
203 static int rate_emu = 0;
204
205 static int audio_volume = 256;
206
207 static int exit_on_error = 0;
208 static int using_stdin = 0;
209 static int verbose = 1;
210 static int run_as_daemon  = 0;
211 static int thread_count= 1;
212 static int q_pressed = 0;
213 static int64_t video_size = 0;
214 static int64_t audio_size = 0;
215 static int64_t extra_size = 0;
216 static int nb_frames_dup = 0;
217 static int nb_frames_drop = 0;
218 static int input_sync;
219 static uint64_t limit_filesize = UINT64_MAX;
220 static int force_fps = 0;
221 static char *forced_key_frames = NULL;
222
223 static float dts_delta_threshold = 10;
224
225 static uint8_t *audio_buf;
226 static uint8_t *audio_out;
227 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
228
229 static short *samples;
230
231 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
232 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
234
235 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
236
237 typedef struct InputStream {
238     int file_index;
239     AVStream *st;
240     int discard;             /* true if stream data should be discarded */
241     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
242     AVCodec *dec;
243
244     int64_t       start;     /* time when read started */
245     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
246                                 is not defined */
247     int64_t       pts;       /* current pts */
248     double ts_scale;
249     int is_start;            /* is 1 at the start and after a discontinuity */
250     int showed_multi_packet_warning;
251     AVDictionary *opts;
252 } InputStream;
253
254 typedef struct InputFile {
255     AVFormatContext *ctx;
256     int eof_reached;      /* true if eof reached */
257     int ist_index;        /* index of first stream in ist_table */
258     int buffer_size;      /* current total buffer size */
259     int64_t ts_offset;
260     int nb_streams;       /* number of stream that avconv is aware of; may be different
261                              from ctx.nb_streams if new streams appear during av_read_frame() */
262 } InputFile;
263
264 typedef struct OutputStream {
265     int file_index;          /* file index */
266     int index;               /* stream index in the output file */
267     int source_index;        /* InputStream index */
268     AVStream *st;            /* stream in the output file */
269     int encoding_needed;     /* true if encoding needed for this stream */
270     int frame_number;
271     /* input pts and corresponding output pts
272        for A/V sync */
273     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
274     struct InputStream *sync_ist; /* input stream to sync against */
275     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
276     AVBitStreamFilterContext *bitstream_filters;
277     AVCodec *enc;
278
279     /* video only */
280     int video_resample;
281     AVFrame resample_frame;              /* temporary frame for image resampling */
282     struct SwsContext *img_resample_ctx; /* for image resampling */
283     int resample_height;
284     int resample_width;
285     int resample_pix_fmt;
286     AVRational frame_rate;
287
288     float frame_aspect_ratio;
289
290     /* forced key frames */
291     int64_t *forced_kf_pts;
292     int forced_kf_count;
293     int forced_kf_index;
294
295     /* audio only */
296     int audio_resample;
297     ReSampleContext *resample; /* for audio resampling */
298     int resample_sample_fmt;
299     int resample_channels;
300     int resample_sample_rate;
301     int reformat_pair;
302     AVAudioConvert *reformat_ctx;
303     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
304     FILE *logfile;
305
306 #if CONFIG_AVFILTER
307     AVFilterContext *output_video_filter;
308     AVFilterContext *input_video_filter;
309     AVFilterBufferRef *picref;
310     char *avfilter;
311     AVFilterGraph *graph;
312 #endif
313
314    int sws_flags;
315    AVDictionary *opts;
316    int is_past_recording_time;
317 } OutputStream;
318
319
320 #if HAVE_TERMIOS_H
321
322 /* init terminal so that we can grab keys */
323 static struct termios oldtty;
324 #endif
325
326 typedef struct OutputFile {
327     AVFormatContext *ctx;
328     AVDictionary *opts;
329     int ost_index;       /* index of the first stream in output_streams */
330     int64_t recording_time; /* desired length of the resulting file in microseconds */
331     int64_t start_time;     /* start time in microseconds */
332     uint64_t limit_filesize;
333 } OutputFile;
334
335 static InputStream *input_streams = NULL;
336 static int         nb_input_streams = 0;
337 static InputFile   *input_files   = NULL;
338 static int         nb_input_files   = 0;
339
340 static OutputStream *output_streams = NULL;
341 static int        nb_output_streams = 0;
342 static OutputFile   *output_files   = NULL;
343 static int        nb_output_files   = 0;
344
345 #if CONFIG_AVFILTER
346
347 static int configure_video_filters(InputStream *ist, OutputStream *ost)
348 {
349     AVFilterContext *last_filter, *filter;
350     /** filter graph containing all filters including input & output */
351     AVCodecContext *codec = ost->st->codec;
352     AVCodecContext *icodec = ist->st->codec;
353     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
354     AVRational sample_aspect_ratio;
355     char args[255];
356     int ret;
357
358     ost->graph = avfilter_graph_alloc();
359
360     if (ist->st->sample_aspect_ratio.num){
361         sample_aspect_ratio = ist->st->sample_aspect_ratio;
362     }else
363         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
364
365     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
366              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
367              sample_aspect_ratio.num, sample_aspect_ratio.den);
368
369     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
370                                        "src", args, NULL, ost->graph);
371     if (ret < 0)
372         return ret;
373     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
374                                        "out", NULL, pix_fmts, ost->graph);
375     if (ret < 0)
376         return ret;
377     last_filter = ost->input_video_filter;
378
379     if (codec->width  != icodec->width || codec->height != icodec->height) {
380         snprintf(args, 255, "%d:%d:flags=0x%X",
381                  codec->width,
382                  codec->height,
383                  ost->sws_flags);
384         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
385                                                 NULL, args, NULL, ost->graph)) < 0)
386             return ret;
387         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
388             return ret;
389         last_filter = filter;
390     }
391
392     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
393     ost->graph->scale_sws_opts = av_strdup(args);
394
395     if (ost->avfilter) {
396         AVFilterInOut *outputs = avfilter_inout_alloc();
397         AVFilterInOut *inputs  = avfilter_inout_alloc();
398
399         outputs->name    = av_strdup("in");
400         outputs->filter_ctx = last_filter;
401         outputs->pad_idx = 0;
402         outputs->next    = NULL;
403
404         inputs->name    = av_strdup("out");
405         inputs->filter_ctx = ost->output_video_filter;
406         inputs->pad_idx = 0;
407         inputs->next    = NULL;
408
409         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
410             return ret;
411         av_freep(&ost->avfilter);
412     } else {
413         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
414             return ret;
415     }
416
417     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
418         return ret;
419
420     codec->width  = ost->output_video_filter->inputs[0]->w;
421     codec->height = ost->output_video_filter->inputs[0]->h;
422     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
423         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
424         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
425         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
426
427     return 0;
428 }
429 #endif /* CONFIG_AVFILTER */
430
431 static void term_exit(void)
432 {
433     av_log(NULL, AV_LOG_QUIET, "%s", "");
434 #if HAVE_TERMIOS_H
435     if(!run_as_daemon)
436         tcsetattr (0, TCSANOW, &oldtty);
437 #endif
438 }
439
440 static volatile int received_sigterm = 0;
441
442 static void
443 sigterm_handler(int sig)
444 {
445     received_sigterm = sig;
446     q_pressed++;
447     term_exit();
448 }
449
450 static void term_init(void)
451 {
452 #if HAVE_TERMIOS_H
453     if(!run_as_daemon){
454     struct termios tty;
455
456     tcgetattr (0, &tty);
457     oldtty = tty;
458     atexit(term_exit);
459
460     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
461                           |INLCR|IGNCR|ICRNL|IXON);
462     tty.c_oflag |= OPOST;
463     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
464     tty.c_cflag &= ~(CSIZE|PARENB);
465     tty.c_cflag |= CS8;
466     tty.c_cc[VMIN] = 1;
467     tty.c_cc[VTIME] = 0;
468
469     tcsetattr (0, TCSANOW, &tty);
470     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
471     }
472 #endif
473
474     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
475     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
476 #ifdef SIGXCPU
477     signal(SIGXCPU, sigterm_handler);
478 #endif
479 }
480
481 /* read a key without blocking */
482 static int read_key(void)
483 {
484 #if HAVE_TERMIOS_H
485     int n = 1;
486     unsigned char ch;
487     struct timeval tv;
488     fd_set rfds;
489
490     if(run_as_daemon)
491         return -1;
492
493     FD_ZERO(&rfds);
494     FD_SET(0, &rfds);
495     tv.tv_sec = 0;
496     tv.tv_usec = 0;
497     n = select(1, &rfds, NULL, NULL, &tv);
498     if (n > 0) {
499         n = read(0, &ch, 1);
500         if (n == 1)
501             return ch;
502
503         return n;
504     }
505 #elif HAVE_KBHIT
506     if(kbhit())
507         return(getch());
508 #endif
509     return -1;
510 }
511
512 static int decode_interrupt_cb(void)
513 {
514     q_pressed += read_key() == 'q';
515     return q_pressed > 1;
516 }
517
518 static int exit_program(int ret)
519 {
520     int i;
521
522     /* close files */
523     for(i=0;i<nb_output_files;i++) {
524         AVFormatContext *s = output_files[i].ctx;
525         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
526             avio_close(s->pb);
527         avformat_free_context(s);
528         av_dict_free(&output_files[i].opts);
529     }
530     for(i=0;i<nb_input_files;i++) {
531         av_close_input_file(input_files[i].ctx);
532     }
533     for (i = 0; i < nb_input_streams; i++)
534         av_dict_free(&input_streams[i].opts);
535
536     av_free(intra_matrix);
537     av_free(inter_matrix);
538
539     if (vstats_file)
540         fclose(vstats_file);
541     av_free(vstats_filename);
542
543     av_free(meta_data_maps);
544
545     av_freep(&input_streams);
546     av_freep(&input_files);
547     av_freep(&output_streams);
548     av_freep(&output_files);
549
550     uninit_opts();
551     av_free(audio_buf);
552     av_free(audio_out);
553     allocated_audio_buf_size= allocated_audio_out_size= 0;
554     av_free(samples);
555
556 #if CONFIG_AVFILTER
557     avfilter_uninit();
558 #endif
559
560     if (received_sigterm) {
561         fprintf(stderr,
562             "Received signal %d: terminating.\n",
563             (int) received_sigterm);
564         exit (255);
565     }
566
567     exit(ret); /* not all OS-es handle main() return value */
568     return ret;
569 }
570
571 static void assert_avoptions(AVDictionary *m)
572 {
573     AVDictionaryEntry *t;
574     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
575         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
576         exit_program(1);
577     }
578 }
579
580 static void assert_codec_experimental(AVCodecContext *c, int encoder)
581 {
582     const char *codec_string = encoder ? "encoder" : "decoder";
583     AVCodec *codec;
584     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
585         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
586         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
587                 "results.\nAdd '-strict experimental' if you want to use it.\n",
588                 codec_string, c->codec->name);
589         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
590         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
591             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
592                    codec_string, codec->name);
593         exit_program(1);
594     }
595 }
596
597 /* similar to ff_dynarray_add() and av_fast_realloc() */
598 static void *grow_array(void *array, int elem_size, int *size, int new_size)
599 {
600     if (new_size >= INT_MAX / elem_size) {
601         fprintf(stderr, "Array too big.\n");
602         exit_program(1);
603     }
604     if (*size < new_size) {
605         uint8_t *tmp = av_realloc(array, new_size*elem_size);
606         if (!tmp) {
607             fprintf(stderr, "Could not alloc buffer.\n");
608             exit_program(1);
609         }
610         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
611         *size = new_size;
612         return tmp;
613     }
614     return array;
615 }
616
617 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
618 {
619     if(codec && codec->sample_fmts){
620         const enum AVSampleFormat *p= codec->sample_fmts;
621         for(; *p!=-1; p++){
622             if(*p == st->codec->sample_fmt)
623                 break;
624         }
625         if (*p == -1) {
626             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
627                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
628             if(av_get_sample_fmt_name(st->codec->sample_fmt))
629             av_log(NULL, AV_LOG_WARNING,
630                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
631                    av_get_sample_fmt_name(st->codec->sample_fmt),
632                    codec->name,
633                    av_get_sample_fmt_name(codec->sample_fmts[0]));
634             st->codec->sample_fmt = codec->sample_fmts[0];
635         }
636     }
637 }
638
639 static void choose_sample_rate(AVStream *st, AVCodec *codec)
640 {
641     if(codec && codec->supported_samplerates){
642         const int *p= codec->supported_samplerates;
643         int best=0;
644         int best_dist=INT_MAX;
645         for(; *p; p++){
646             int dist= abs(st->codec->sample_rate - *p);
647             if(dist < best_dist){
648                 best_dist= dist;
649                 best= *p;
650             }
651         }
652         if(best_dist){
653             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
654         }
655         st->codec->sample_rate= best;
656     }
657 }
658
659 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
660 {
661     if(codec && codec->pix_fmts){
662         const enum PixelFormat *p= codec->pix_fmts;
663         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
664             if(st->codec->codec_id==CODEC_ID_MJPEG){
665                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
666             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
667                 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};
668             }
669         }
670         for(; *p!=-1; p++){
671             if(*p == st->codec->pix_fmt)
672                 break;
673         }
674         if (*p == -1) {
675             if(st->codec->pix_fmt != PIX_FMT_NONE)
676                 av_log(NULL, AV_LOG_WARNING,
677                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
678                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
679                         codec->name,
680                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
681             st->codec->pix_fmt = codec->pix_fmts[0];
682         }
683     }
684 }
685
686 static double
687 get_sync_ipts(const OutputStream *ost)
688 {
689     const InputStream *ist = ost->sync_ist;
690     OutputFile *of = &output_files[ost->file_index];
691     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
692 }
693
694 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
695     int ret;
696
697     while(bsfc){
698         AVPacket new_pkt= *pkt;
699         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
700                                           &new_pkt.data, &new_pkt.size,
701                                           pkt->data, pkt->size,
702                                           pkt->flags & AV_PKT_FLAG_KEY);
703         if(a>0){
704             av_free_packet(pkt);
705             new_pkt.destruct= av_destruct_packet;
706         } else if(a<0){
707             fprintf(stderr, "%s failed for stream %d, codec %s",
708                     bsfc->filter->name, pkt->stream_index,
709                     avctx->codec ? avctx->codec->name : "copy");
710             print_error("", a);
711             if (exit_on_error)
712                 exit_program(1);
713         }
714         *pkt= new_pkt;
715
716         bsfc= bsfc->next;
717     }
718
719     ret= av_interleaved_write_frame(s, pkt);
720     if(ret < 0){
721         print_error("av_interleaved_write_frame()", ret);
722         exit_program(1);
723     }
724 }
725
726 static void do_audio_out(AVFormatContext *s,
727                          OutputStream *ost,
728                          InputStream *ist,
729                          unsigned char *buf, int size)
730 {
731     uint8_t *buftmp;
732     int64_t audio_out_size, audio_buf_size;
733     int64_t allocated_for_size= size;
734
735     int size_out, frame_bytes, ret, resample_changed;
736     AVCodecContext *enc= ost->st->codec;
737     AVCodecContext *dec= ist->st->codec;
738     int osize = av_get_bytes_per_sample(enc->sample_fmt);
739     int isize = av_get_bytes_per_sample(dec->sample_fmt);
740     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
741
742 need_realloc:
743     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
744     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
745     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
746     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
747     audio_buf_size*= osize*enc->channels;
748
749     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
750     if(coded_bps > 8*osize)
751         audio_out_size= audio_out_size * coded_bps / (8*osize);
752     audio_out_size += FF_MIN_BUFFER_SIZE;
753
754     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
755         fprintf(stderr, "Buffer sizes too large\n");
756         exit_program(1);
757     }
758
759     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
760     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
761     if (!audio_buf || !audio_out){
762         fprintf(stderr, "Out of memory in do_audio_out\n");
763         exit_program(1);
764     }
765
766     if (enc->channels != dec->channels)
767         ost->audio_resample = 1;
768
769     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
770                        ost->resample_channels    != dec->channels   ||
771                        ost->resample_sample_rate != dec->sample_rate;
772
773     if ((ost->audio_resample && !ost->resample) || resample_changed) {
774         if (resample_changed) {
775             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",
776                    ist->file_index, ist->st->index,
777                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
778                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
779             ost->resample_sample_fmt  = dec->sample_fmt;
780             ost->resample_channels    = dec->channels;
781             ost->resample_sample_rate = dec->sample_rate;
782             if (ost->resample)
783                 audio_resample_close(ost->resample);
784         }
785         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
786         if (audio_sync_method <= 1 &&
787             ost->resample_sample_fmt  == enc->sample_fmt &&
788             ost->resample_channels    == enc->channels   &&
789             ost->resample_sample_rate == enc->sample_rate) {
790             ost->resample = NULL;
791             ost->audio_resample = 0;
792         } else {
793             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
794                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
795             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
796                                                    enc->sample_rate, dec->sample_rate,
797                                                    enc->sample_fmt,  dec->sample_fmt,
798                                                    16, 10, 0, 0.8);
799             if (!ost->resample) {
800                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
801                         dec->channels, dec->sample_rate,
802                         enc->channels, enc->sample_rate);
803                 exit_program(1);
804             }
805         }
806     }
807
808 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
809     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
810         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
811         if (ost->reformat_ctx)
812             av_audio_convert_free(ost->reformat_ctx);
813         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
814                                                    dec->sample_fmt, 1, NULL, 0);
815         if (!ost->reformat_ctx) {
816             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
817                 av_get_sample_fmt_name(dec->sample_fmt),
818                 av_get_sample_fmt_name(enc->sample_fmt));
819             exit_program(1);
820         }
821         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
822     }
823
824     if(audio_sync_method){
825         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
826                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
827         double idelta= delta*dec->sample_rate / enc->sample_rate;
828         int byte_delta= ((int)idelta)*2*dec->channels;
829
830         //FIXME resample delay
831         if(fabs(delta) > 50){
832             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
833                 if(byte_delta < 0){
834                     byte_delta= FFMAX(byte_delta, -size);
835                     size += byte_delta;
836                     buf  -= byte_delta;
837                     if(verbose > 2)
838                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
839                     if(!size)
840                         return;
841                     ist->is_start=0;
842                 }else{
843                     static uint8_t *input_tmp= NULL;
844                     input_tmp= av_realloc(input_tmp, byte_delta + size);
845
846                     if(byte_delta > allocated_for_size - size){
847                         allocated_for_size= byte_delta + (int64_t)size;
848                         goto need_realloc;
849                     }
850                     ist->is_start=0;
851
852                     memset(input_tmp, 0, byte_delta);
853                     memcpy(input_tmp + byte_delta, buf, size);
854                     buf= input_tmp;
855                     size += byte_delta;
856                     if(verbose > 2)
857                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
858                 }
859             }else if(audio_sync_method>1){
860                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
861                 av_assert0(ost->audio_resample);
862                 if(verbose > 2)
863                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
864 //                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));
865                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
866             }
867         }
868     }else
869         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
870                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
871
872     if (ost->audio_resample) {
873         buftmp = audio_buf;
874         size_out = audio_resample(ost->resample,
875                                   (short *)buftmp, (short *)buf,
876                                   size / (dec->channels * isize));
877         size_out = size_out * enc->channels * osize;
878     } else {
879         buftmp = buf;
880         size_out = size;
881     }
882
883     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
884         const void *ibuf[6]= {buftmp};
885         void *obuf[6]= {audio_buf};
886         int istride[6]= {isize};
887         int ostride[6]= {osize};
888         int len= size_out/istride[0];
889         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
890             printf("av_audio_convert() failed\n");
891             if (exit_on_error)
892                 exit_program(1);
893             return;
894         }
895         buftmp = audio_buf;
896         size_out = len*osize;
897     }
898
899     /* now encode as many frames as possible */
900     if (enc->frame_size > 1) {
901         /* output resampled raw samples */
902         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
903             fprintf(stderr, "av_fifo_realloc2() failed\n");
904             exit_program(1);
905         }
906         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
907
908         frame_bytes = enc->frame_size * osize * enc->channels;
909
910         while (av_fifo_size(ost->fifo) >= frame_bytes) {
911             AVPacket pkt;
912             av_init_packet(&pkt);
913
914             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
915
916             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
917
918             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
919                                        (short *)audio_buf);
920             if (ret < 0) {
921                 fprintf(stderr, "Audio encoding failed\n");
922                 exit_program(1);
923             }
924             audio_size += ret;
925             pkt.stream_index= ost->index;
926             pkt.data= audio_out;
927             pkt.size= ret;
928             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
929                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
930             pkt.flags |= AV_PKT_FLAG_KEY;
931             write_frame(s, &pkt, enc, ost->bitstream_filters);
932
933             ost->sync_opts += enc->frame_size;
934         }
935     } else {
936         AVPacket pkt;
937         av_init_packet(&pkt);
938
939         ost->sync_opts += size_out / (osize * enc->channels);
940
941         /* output a pcm frame */
942         /* determine the size of the coded buffer */
943         size_out /= osize;
944         if (coded_bps)
945             size_out = size_out*coded_bps/8;
946
947         if(size_out > audio_out_size){
948             fprintf(stderr, "Internal error, buffer size too small\n");
949             exit_program(1);
950         }
951
952         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
953         ret = avcodec_encode_audio(enc, audio_out, size_out,
954                                    (short *)buftmp);
955         if (ret < 0) {
956             fprintf(stderr, "Audio encoding failed\n");
957             exit_program(1);
958         }
959         audio_size += ret;
960         pkt.stream_index= ost->index;
961         pkt.data= audio_out;
962         pkt.size= ret;
963         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
964             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
965         pkt.flags |= AV_PKT_FLAG_KEY;
966         write_frame(s, &pkt, enc, ost->bitstream_filters);
967     }
968 }
969
970 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
971 {
972     AVCodecContext *dec;
973     AVPicture *picture2;
974     AVPicture picture_tmp;
975     uint8_t *buf = 0;
976
977     dec = ist->st->codec;
978
979     /* deinterlace : must be done before any resize */
980     if (do_deinterlace) {
981         int size;
982
983         /* create temporary picture */
984         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
985         buf = av_malloc(size);
986         if (!buf)
987             return;
988
989         picture2 = &picture_tmp;
990         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
991
992         if(avpicture_deinterlace(picture2, picture,
993                                  dec->pix_fmt, dec->width, dec->height) < 0) {
994             /* if error, do not deinterlace */
995             fprintf(stderr, "Deinterlacing failed\n");
996             av_free(buf);
997             buf = NULL;
998             picture2 = picture;
999         }
1000     } else {
1001         picture2 = picture;
1002     }
1003
1004     if (picture != picture2)
1005         *picture = *picture2;
1006     *bufp = buf;
1007 }
1008
1009 static void do_subtitle_out(AVFormatContext *s,
1010                             OutputStream *ost,
1011                             InputStream *ist,
1012                             AVSubtitle *sub,
1013                             int64_t pts)
1014 {
1015     static uint8_t *subtitle_out = NULL;
1016     int subtitle_out_max_size = 1024 * 1024;
1017     int subtitle_out_size, nb, i;
1018     AVCodecContext *enc;
1019     AVPacket pkt;
1020
1021     if (pts == AV_NOPTS_VALUE) {
1022         fprintf(stderr, "Subtitle packets must have a pts\n");
1023         if (exit_on_error)
1024             exit_program(1);
1025         return;
1026     }
1027
1028     enc = ost->st->codec;
1029
1030     if (!subtitle_out) {
1031         subtitle_out = av_malloc(subtitle_out_max_size);
1032     }
1033
1034     /* Note: DVB subtitle need one packet to draw them and one other
1035        packet to clear them */
1036     /* XXX: signal it in the codec context ? */
1037     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1038         nb = 2;
1039     else
1040         nb = 1;
1041
1042     for(i = 0; i < nb; i++) {
1043         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1044         // start_display_time is required to be 0
1045         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1046         sub->end_display_time -= sub->start_display_time;
1047         sub->start_display_time = 0;
1048         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1049                                                     subtitle_out_max_size, sub);
1050         if (subtitle_out_size < 0) {
1051             fprintf(stderr, "Subtitle encoding failed\n");
1052             exit_program(1);
1053         }
1054
1055         av_init_packet(&pkt);
1056         pkt.stream_index = ost->index;
1057         pkt.data = subtitle_out;
1058         pkt.size = subtitle_out_size;
1059         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1060         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1061             /* XXX: the pts correction is handled here. Maybe handling
1062                it in the codec would be better */
1063             if (i == 0)
1064                 pkt.pts += 90 * sub->start_display_time;
1065             else
1066                 pkt.pts += 90 * sub->end_display_time;
1067         }
1068         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1069     }
1070 }
1071
1072 static int bit_buffer_size= 1024*256;
1073 static uint8_t *bit_buffer= NULL;
1074
1075 static void do_video_resample(OutputStream *ost,
1076                               InputStream *ist,
1077                               AVFrame *in_picture,
1078                               AVFrame **out_picture)
1079 {
1080 #if CONFIG_AVFILTER
1081     *out_picture = in_picture;
1082 #else
1083     AVCodecContext *dec = ist->st->codec;
1084     AVCodecContext *enc = ost->st->codec;
1085     int resample_changed = ost->resample_width   != dec->width  ||
1086                            ost->resample_height  != dec->height ||
1087                            ost->resample_pix_fmt != dec->pix_fmt;
1088
1089     *out_picture = in_picture;
1090     if (resample_changed) {
1091         av_log(NULL, AV_LOG_INFO,
1092                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1093                ist->file_index, ist->st->index,
1094                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1095                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1096         ost->resample_width   = dec->width;
1097         ost->resample_height  = dec->height;
1098         ost->resample_pix_fmt = dec->pix_fmt;
1099     }
1100
1101     ost->video_resample = dec->width   != enc->width  ||
1102                           dec->height  != enc->height ||
1103                           dec->pix_fmt != enc->pix_fmt;
1104
1105     if (ost->video_resample) {
1106         *out_picture = &ost->resample_frame;
1107         if (!ost->img_resample_ctx || resample_changed) {
1108             /* initialize the destination picture */
1109             if (!ost->resample_frame.data[0]) {
1110                 avcodec_get_frame_defaults(&ost->resample_frame);
1111                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1112                                     enc->width, enc->height)) {
1113                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1114                     exit_program(1);
1115                 }
1116             }
1117             /* initialize a new scaler context */
1118             sws_freeContext(ost->img_resample_ctx);
1119             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1120                                                    enc->width, enc->height, enc->pix_fmt,
1121                                                    ost->sws_flags, NULL, NULL, NULL);
1122             if (ost->img_resample_ctx == NULL) {
1123                 fprintf(stderr, "Cannot get resampling context\n");
1124                 exit_program(1);
1125             }
1126         }
1127         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1128               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1129     }
1130 #endif
1131 }
1132
1133
1134 static void do_video_out(AVFormatContext *s,
1135                          OutputStream *ost,
1136                          InputStream *ist,
1137                          AVFrame *in_picture,
1138                          int *frame_size, float quality)
1139 {
1140     int nb_frames, i, ret, format_video_sync;
1141     AVFrame *final_picture;
1142     AVCodecContext *enc;
1143     double sync_ipts;
1144
1145     enc = ost->st->codec;
1146
1147     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1148
1149     /* by default, we output a single frame */
1150     nb_frames = 1;
1151
1152     *frame_size = 0;
1153
1154     format_video_sync = video_sync_method;
1155     if (format_video_sync < 0)
1156         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1157
1158     if (format_video_sync) {
1159         double vdelta = sync_ipts - ost->sync_opts;
1160         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1161         if (vdelta < -1.1)
1162             nb_frames = 0;
1163         else if (format_video_sync == 2) {
1164             if(vdelta<=-0.6){
1165                 nb_frames=0;
1166             }else if(vdelta>0.6)
1167                 ost->sync_opts= lrintf(sync_ipts);
1168         }else if (vdelta > 1.1)
1169             nb_frames = lrintf(vdelta);
1170 //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);
1171         if (nb_frames == 0){
1172             ++nb_frames_drop;
1173             if (verbose>2)
1174                 fprintf(stderr, "*** drop!\n");
1175         }else if (nb_frames > 1) {
1176             nb_frames_dup += nb_frames - 1;
1177             if (verbose>2)
1178                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1179         }
1180     }else
1181         ost->sync_opts= lrintf(sync_ipts);
1182
1183     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1184     if (nb_frames <= 0)
1185         return;
1186
1187     do_video_resample(ost, ist, in_picture, &final_picture);
1188
1189     /* duplicates frame if needed */
1190     for(i=0;i<nb_frames;i++) {
1191         AVPacket pkt;
1192         av_init_packet(&pkt);
1193         pkt.stream_index= ost->index;
1194
1195         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1196             /* raw pictures are written as AVPicture structure to
1197                avoid any copies. We support temporarily the older
1198                method. */
1199             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1200             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1201             pkt.data= (uint8_t *)final_picture;
1202             pkt.size=  sizeof(AVPicture);
1203             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1204             pkt.flags |= AV_PKT_FLAG_KEY;
1205
1206             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1207         } else {
1208             AVFrame big_picture;
1209
1210             big_picture= *final_picture;
1211             /* better than nothing: use input picture interlaced
1212                settings */
1213             big_picture.interlaced_frame = in_picture->interlaced_frame;
1214             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1215                 if(top_field_first == -1)
1216                     big_picture.top_field_first = in_picture->top_field_first;
1217                 else
1218                     big_picture.top_field_first = top_field_first;
1219             }
1220
1221             /* handles same_quant here. This is not correct because it may
1222                not be a global option */
1223             big_picture.quality = quality;
1224             if(!me_threshold)
1225                 big_picture.pict_type = 0;
1226 //            big_picture.pts = AV_NOPTS_VALUE;
1227             big_picture.pts= ost->sync_opts;
1228 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1229 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1230             if (ost->forced_kf_index < ost->forced_kf_count &&
1231                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1232                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1233                 ost->forced_kf_index++;
1234             }
1235             ret = avcodec_encode_video(enc,
1236                                        bit_buffer, bit_buffer_size,
1237                                        &big_picture);
1238             if (ret < 0) {
1239                 fprintf(stderr, "Video encoding failed\n");
1240                 exit_program(1);
1241             }
1242
1243             if(ret>0){
1244                 pkt.data= bit_buffer;
1245                 pkt.size= ret;
1246                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1247                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1248 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1249    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1250    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1251
1252                 if(enc->coded_frame->key_frame)
1253                     pkt.flags |= AV_PKT_FLAG_KEY;
1254                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1255                 *frame_size = ret;
1256                 video_size += ret;
1257                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1258                 //        enc->frame_number-1, ret, enc->pict_type);
1259                 /* if two pass, output log */
1260                 if (ost->logfile && enc->stats_out) {
1261                     fprintf(ost->logfile, "%s", enc->stats_out);
1262                 }
1263             }
1264         }
1265         ost->sync_opts++;
1266         ost->frame_number++;
1267     }
1268 }
1269
1270 static double psnr(double d){
1271     return -10.0*log(d)/log(10.0);
1272 }
1273
1274 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1275                            int frame_size)
1276 {
1277     AVCodecContext *enc;
1278     int frame_number;
1279     double ti1, bitrate, avg_bitrate;
1280
1281     /* this is executed just the first time do_video_stats is called */
1282     if (!vstats_file) {
1283         vstats_file = fopen(vstats_filename, "w");
1284         if (!vstats_file) {
1285             perror("fopen");
1286             exit_program(1);
1287         }
1288     }
1289
1290     enc = ost->st->codec;
1291     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1292         frame_number = ost->frame_number;
1293         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1294         if (enc->flags&CODEC_FLAG_PSNR)
1295             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1296
1297         fprintf(vstats_file,"f_size= %6d ", frame_size);
1298         /* compute pts value */
1299         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1300         if (ti1 < 0.01)
1301             ti1 = 0.01;
1302
1303         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1304         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1305         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1306             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1307         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1308     }
1309 }
1310
1311 static void print_report(OutputFile *output_files,
1312                          OutputStream *ost_table, int nb_ostreams,
1313                          int is_last_report, int64_t timer_start)
1314 {
1315     char buf[1024];
1316     OutputStream *ost;
1317     AVFormatContext *oc;
1318     int64_t total_size;
1319     AVCodecContext *enc;
1320     int frame_number, vid, i;
1321     double bitrate;
1322     int64_t pts = INT64_MAX;
1323     static int64_t last_time = -1;
1324     static int qp_histogram[52];
1325
1326     if (!is_last_report) {
1327         int64_t cur_time;
1328         /* display the report every 0.5 seconds */
1329         cur_time = av_gettime();
1330         if (last_time == -1) {
1331             last_time = cur_time;
1332             return;
1333         }
1334         if ((cur_time - last_time) < 500000)
1335             return;
1336         last_time = cur_time;
1337     }
1338
1339
1340     oc = output_files[0].ctx;
1341
1342     total_size = avio_size(oc->pb);
1343     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1344         total_size= avio_tell(oc->pb);
1345
1346     buf[0] = '\0';
1347     vid = 0;
1348     for(i=0;i<nb_ostreams;i++) {
1349         float q = -1;
1350         ost = &ost_table[i];
1351         enc = ost->st->codec;
1352         if (!ost->st->stream_copy && enc->coded_frame)
1353             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1354         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1355             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1356         }
1357         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1358             float t = (av_gettime()-timer_start) / 1000000.0;
1359
1360             frame_number = ost->frame_number;
1361             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1362                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1363             if(is_last_report)
1364                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1365             if(qp_hist){
1366                 int j;
1367                 int qp = lrintf(q);
1368                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1369                     qp_histogram[qp]++;
1370                 for(j=0; j<32; j++)
1371                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1372             }
1373             if (enc->flags&CODEC_FLAG_PSNR){
1374                 int j;
1375                 double error, error_sum=0;
1376                 double scale, scale_sum=0;
1377                 char type[3]= {'Y','U','V'};
1378                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1379                 for(j=0; j<3; j++){
1380                     if(is_last_report){
1381                         error= enc->error[j];
1382                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1383                     }else{
1384                         error= enc->coded_frame->error[j];
1385                         scale= enc->width*enc->height*255.0*255.0;
1386                     }
1387                     if(j) scale/=4;
1388                     error_sum += error;
1389                     scale_sum += scale;
1390                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1391                 }
1392                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1393             }
1394             vid = 1;
1395         }
1396         /* compute min output value */
1397         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1398                                       ost->st->time_base, AV_TIME_BASE_Q));
1399     }
1400
1401     if (verbose > 0 || is_last_report) {
1402         int hours, mins, secs, us;
1403         secs = pts / AV_TIME_BASE;
1404         us = pts % AV_TIME_BASE;
1405         mins = secs / 60;
1406         secs %= 60;
1407         hours = mins / 60;
1408         mins %= 60;
1409
1410         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1411
1412         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1413                  "size=%8.0fkB time=", total_size / 1024.0);
1414         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1415                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1416                  (100 * us) / AV_TIME_BASE);
1417         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1418                  "bitrate=%6.1fkbits/s", bitrate);
1419
1420         if (nb_frames_dup || nb_frames_drop)
1421           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1422                   nb_frames_dup, nb_frames_drop);
1423
1424         if (verbose >= 0)
1425             fprintf(stderr, "%s    \r", buf);
1426
1427         fflush(stderr);
1428     }
1429
1430     if (is_last_report && verbose >= 0){
1431         int64_t raw= audio_size + video_size + extra_size;
1432         fprintf(stderr, "\n");
1433         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1434                 video_size/1024.0,
1435                 audio_size/1024.0,
1436                 extra_size/1024.0,
1437                 100.0*(total_size - raw)/raw
1438         );
1439     }
1440 }
1441
1442 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1443 {
1444     int fill_char = 0x00;
1445     if (sample_fmt == AV_SAMPLE_FMT_U8)
1446         fill_char = 0x80;
1447     memset(buf, fill_char, size);
1448 }
1449
1450 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1451 {
1452     int i, ret;
1453
1454     for (i = 0; i < nb_ostreams; i++) {
1455         OutputStream   *ost = &ost_table[i];
1456         AVCodecContext *enc = ost->st->codec;
1457         AVFormatContext *os = output_files[ost->file_index].ctx;
1458
1459         if (!ost->encoding_needed)
1460             continue;
1461
1462         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1463             continue;
1464         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1465             continue;
1466
1467         for(;;) {
1468             AVPacket pkt;
1469             int fifo_bytes;
1470             av_init_packet(&pkt);
1471             pkt.stream_index= ost->index;
1472
1473             switch (ost->st->codec->codec_type) {
1474             case AVMEDIA_TYPE_AUDIO:
1475                 fifo_bytes = av_fifo_size(ost->fifo);
1476                 ret = 0;
1477                 /* encode any samples remaining in fifo */
1478                 if (fifo_bytes > 0) {
1479                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1480                     int fs_tmp = enc->frame_size;
1481
1482                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1483                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1484                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1485                     } else { /* pad */
1486                         int frame_bytes = enc->frame_size*osize*enc->channels;
1487                         if (allocated_audio_buf_size < frame_bytes)
1488                             exit_program(1);
1489                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1490                     }
1491
1492                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1493                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1494                                               ost->st->time_base.num, enc->sample_rate);
1495                     enc->frame_size = fs_tmp;
1496                 }
1497                 if (ret <= 0) {
1498                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1499                 }
1500                 if (ret < 0) {
1501                     fprintf(stderr, "Audio encoding failed\n");
1502                     exit_program(1);
1503                 }
1504                 audio_size += ret;
1505                 pkt.flags |= AV_PKT_FLAG_KEY;
1506                 break;
1507             case AVMEDIA_TYPE_VIDEO:
1508                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1509                 if (ret < 0) {
1510                     fprintf(stderr, "Video encoding failed\n");
1511                     exit_program(1);
1512                 }
1513                 video_size += ret;
1514                 if(enc->coded_frame && enc->coded_frame->key_frame)
1515                     pkt.flags |= AV_PKT_FLAG_KEY;
1516                 if (ost->logfile && enc->stats_out) {
1517                     fprintf(ost->logfile, "%s", enc->stats_out);
1518                 }
1519                 break;
1520             default:
1521                 ret=-1;
1522             }
1523
1524             if (ret <= 0)
1525                 break;
1526             pkt.data = bit_buffer;
1527             pkt.size = ret;
1528             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1529                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1530             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1531         }
1532     }
1533 }
1534
1535 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1536 static int output_packet(InputStream *ist, int ist_index,
1537                          OutputStream *ost_table, int nb_ostreams,
1538                          const AVPacket *pkt)
1539 {
1540     AVFormatContext *os;
1541     OutputStream *ost;
1542     int ret, i;
1543     int got_output;
1544     AVFrame picture;
1545     void *buffer_to_free = NULL;
1546     static unsigned int samples_size= 0;
1547     AVSubtitle subtitle, *subtitle_to_free;
1548     int64_t pkt_pts = AV_NOPTS_VALUE;
1549 #if CONFIG_AVFILTER
1550     int frame_available;
1551 #endif
1552     float quality;
1553
1554     AVPacket avpkt;
1555     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1556
1557     if(ist->next_pts == AV_NOPTS_VALUE)
1558         ist->next_pts= ist->pts;
1559
1560     if (pkt == NULL) {
1561         /* EOF handling */
1562         av_init_packet(&avpkt);
1563         avpkt.data = NULL;
1564         avpkt.size = 0;
1565         goto handle_eof;
1566     } else {
1567         avpkt = *pkt;
1568     }
1569
1570     if(pkt->dts != AV_NOPTS_VALUE)
1571         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1572     if(pkt->pts != AV_NOPTS_VALUE)
1573         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1574
1575     //while we have more to decode or while the decoder did output something on EOF
1576     while (avpkt.size > 0 || (!pkt && got_output)) {
1577         uint8_t *data_buf, *decoded_data_buf;
1578         int data_size, decoded_data_size;
1579     handle_eof:
1580         ist->pts= ist->next_pts;
1581
1582         if(avpkt.size && avpkt.size != pkt->size &&
1583            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1584             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1585             ist->showed_multi_packet_warning=1;
1586         }
1587
1588         /* decode the packet if needed */
1589         decoded_data_buf = NULL; /* fail safe */
1590         decoded_data_size= 0;
1591         data_buf  = avpkt.data;
1592         data_size = avpkt.size;
1593         subtitle_to_free = NULL;
1594         if (ist->decoding_needed) {
1595             switch(ist->st->codec->codec_type) {
1596             case AVMEDIA_TYPE_AUDIO:{
1597                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1598                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1599                     av_free(samples);
1600                     samples= av_malloc(samples_size);
1601                 }
1602                 decoded_data_size= samples_size;
1603                     /* XXX: could avoid copy if PCM 16 bits with same
1604                        endianness as CPU */
1605                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1606                                             &avpkt);
1607                 if (ret < 0)
1608                     return ret;
1609                 avpkt.data += ret;
1610                 avpkt.size -= ret;
1611                 data_size   = ret;
1612                 got_output  = decoded_data_size > 0;
1613                 /* Some bug in mpeg audio decoder gives */
1614                 /* decoded_data_size < 0, it seems they are overflows */
1615                 if (!got_output) {
1616                     /* no audio frame */
1617                     continue;
1618                 }
1619                 decoded_data_buf = (uint8_t *)samples;
1620                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1621                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1622                 break;}
1623             case AVMEDIA_TYPE_VIDEO:
1624                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1625                     /* XXX: allocate picture correctly */
1626                     avcodec_get_frame_defaults(&picture);
1627                     avpkt.pts = pkt_pts;
1628                     avpkt.dts = ist->pts;
1629                     pkt_pts = AV_NOPTS_VALUE;
1630
1631                     ret = avcodec_decode_video2(ist->st->codec,
1632                                                 &picture, &got_output, &avpkt);
1633                     quality = same_quant ? picture.quality : 0;
1634                     if (ret < 0)
1635                         return ret;
1636                     if (!got_output) {
1637                         /* no picture yet */
1638                         goto discard_packet;
1639                     }
1640                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1641                     if (ist->st->codec->time_base.num != 0) {
1642                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1643                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1644                                           ist->st->codec->time_base.num * ticks) /
1645                             ist->st->codec->time_base.den;
1646                     }
1647                     avpkt.size = 0;
1648                     buffer_to_free = NULL;
1649                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1650                     break;
1651             case AVMEDIA_TYPE_SUBTITLE:
1652                 ret = avcodec_decode_subtitle2(ist->st->codec,
1653                                                &subtitle, &got_output, &avpkt);
1654                 if (ret < 0)
1655                     return ret;
1656                 if (!got_output) {
1657                     goto discard_packet;
1658                 }
1659                 subtitle_to_free = &subtitle;
1660                 avpkt.size = 0;
1661                 break;
1662             default:
1663                 return -1;
1664             }
1665         } else {
1666             switch(ist->st->codec->codec_type) {
1667             case AVMEDIA_TYPE_AUDIO:
1668                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1669                     ist->st->codec->sample_rate;
1670                 break;
1671             case AVMEDIA_TYPE_VIDEO:
1672                 if (ist->st->codec->time_base.num != 0) {
1673                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1674                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1675                                       ist->st->codec->time_base.num * ticks) /
1676                         ist->st->codec->time_base.den;
1677                 }
1678                 break;
1679             }
1680             avpkt.size = 0;
1681         }
1682
1683 #if CONFIG_AVFILTER
1684         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1685         if (start_time == 0 || ist->pts >= start_time) {
1686             for(i=0;i<nb_ostreams;i++) {
1687                 ost = &ost_table[i];
1688                 if (ost->input_video_filter && ost->source_index == ist_index) {
1689                     if (!picture.sample_aspect_ratio.num)
1690                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1691                     picture.pts = ist->pts;
1692
1693                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1694                 }
1695             }
1696         }
1697 #endif
1698
1699         // preprocess audio (volume)
1700         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1701             if (audio_volume != 256) {
1702                 short *volp;
1703                 volp = samples;
1704                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1705                     int v = ((*volp) * audio_volume + 128) >> 8;
1706                     *volp++ = av_clip_int16(v);
1707                 }
1708             }
1709         }
1710
1711         /* frame rate emulation */
1712         if (rate_emu) {
1713             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1714             int64_t now = av_gettime() - ist->start;
1715             if (pts > now)
1716                 usleep(pts - now);
1717         }
1718         /* if output time reached then transcode raw format,
1719            encode packets and output them */
1720         for (i = 0; i < nb_ostreams; i++) {
1721             OutputFile *of = &output_files[ost_table[i].file_index];
1722             int frame_size;
1723
1724             ost = &ost_table[i];
1725             if (ost->source_index != ist_index)
1726                 continue;
1727
1728             if (of->start_time && ist->pts < of->start_time)
1729                 continue;
1730
1731             if (of->recording_time != INT64_MAX &&
1732                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1733                               (AVRational){1, 1000000}) >= 0) {
1734                 ost->is_past_recording_time = 1;
1735                 continue;
1736             }
1737
1738 #if CONFIG_AVFILTER
1739             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1740                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1741             while (frame_available) {
1742                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1743                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1744                     if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1745                         goto cont;
1746                     if (ost->picref) {
1747                         avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1748                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1749                     }
1750                 }
1751 #endif
1752                 os = output_files[ost->file_index].ctx;
1753
1754                 /* set the input output pts pairs */
1755                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1756
1757                 if (ost->encoding_needed) {
1758                     av_assert0(ist->decoding_needed);
1759                     switch(ost->st->codec->codec_type) {
1760                     case AVMEDIA_TYPE_AUDIO:
1761                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1762                         break;
1763                     case AVMEDIA_TYPE_VIDEO:
1764 #if CONFIG_AVFILTER
1765                         if (ost->picref->video && !ost->frame_aspect_ratio)
1766                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1767 #endif
1768                         do_video_out(os, ost, ist, &picture, &frame_size,
1769                                         same_quant ? quality : ost->st->codec->global_quality);
1770                         if (vstats_filename && frame_size)
1771                             do_video_stats(os, ost, frame_size);
1772                         break;
1773                     case AVMEDIA_TYPE_SUBTITLE:
1774                         do_subtitle_out(os, ost, ist, &subtitle,
1775                                         pkt->pts);
1776                         break;
1777                     default:
1778                         abort();
1779                     }
1780                 } else {
1781                     AVFrame avframe; //FIXME/XXX remove this
1782                     AVPicture pict;
1783                     AVPacket opkt;
1784                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1785                     av_init_packet(&opkt);
1786
1787                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1788 #if !CONFIG_AVFILTER
1789                         continue;
1790 #else
1791                         goto cont;
1792 #endif
1793
1794                     /* no reencoding needed : output the packet directly */
1795                     /* force the input stream PTS */
1796
1797                     avcodec_get_frame_defaults(&avframe);
1798                     ost->st->codec->coded_frame= &avframe;
1799                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1800
1801                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1802                         audio_size += data_size;
1803                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1804                         video_size += data_size;
1805                         ost->sync_opts++;
1806                     }
1807
1808                     opkt.stream_index= ost->index;
1809                     if(pkt->pts != AV_NOPTS_VALUE)
1810                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1811                     else
1812                         opkt.pts= AV_NOPTS_VALUE;
1813
1814                     if (pkt->dts == AV_NOPTS_VALUE)
1815                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1816                     else
1817                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1818                     opkt.dts -= ost_tb_start_time;
1819
1820                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1821                     opkt.flags= pkt->flags;
1822
1823                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1824                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1825                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1826                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1827                        ) {
1828                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1829                             opkt.destruct= av_destruct_packet;
1830                     } else {
1831                         opkt.data = data_buf;
1832                         opkt.size = data_size;
1833                     }
1834
1835                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1836                         /* store AVPicture in AVPacket, as expected by the output format */
1837                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1838                         opkt.data = (uint8_t *)&pict;
1839                         opkt.size = sizeof(AVPicture);
1840                         opkt.flags |= AV_PKT_FLAG_KEY;
1841                     }
1842                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1843                     ost->st->codec->frame_number++;
1844                     ost->frame_number++;
1845                     av_free_packet(&opkt);
1846                 }
1847 #if CONFIG_AVFILTER
1848                 cont:
1849                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1850                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1851                 avfilter_unref_buffer(ost->picref);
1852             }
1853 #endif
1854         }
1855
1856         av_free(buffer_to_free);
1857         /* XXX: allocate the subtitles in the codec ? */
1858         if (subtitle_to_free) {
1859             avsubtitle_free(subtitle_to_free);
1860             subtitle_to_free = NULL;
1861         }
1862     }
1863  discard_packet:
1864
1865     return 0;
1866 }
1867
1868 static void print_sdp(OutputFile *output_files, int n)
1869 {
1870     char sdp[2048];
1871     int i;
1872     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1873
1874     if (!avc)
1875         exit_program(1);
1876     for (i = 0; i < n; i++)
1877         avc[i] = output_files[i].ctx;
1878
1879     av_sdp_create(avc, n, sdp, sizeof(sdp));
1880     printf("SDP:\n%s\n", sdp);
1881     fflush(stdout);
1882     av_freep(&avc);
1883 }
1884
1885 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1886                              char *error, int error_len)
1887 {
1888     InputStream *ist = &input_streams[ist_index];
1889     if (ist->decoding_needed) {
1890         AVCodec *codec = ist->dec;
1891         if (!codec) {
1892             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d.%d",
1893                     avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1894             return AVERROR(EINVAL);
1895         }
1896         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1897             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1898                     ist->file_index, ist->st->index);
1899             return AVERROR(EINVAL);
1900         }
1901         assert_codec_experimental(ist->st->codec, 0);
1902         assert_avoptions(ist->opts);
1903     }
1904
1905     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1906     ist->next_pts = AV_NOPTS_VALUE;
1907     ist->is_start = 1;
1908
1909     return 0;
1910 }
1911
1912 static int transcode_init(OutputFile *output_files,
1913                           int nb_output_files,
1914                           InputFile *input_files,
1915                           int nb_input_files)
1916 {
1917     int ret = 0, i;
1918     AVFormatContext *os;
1919     AVCodecContext *codec, *icodec;
1920     OutputStream *ost;
1921     InputStream *ist;
1922     char error[1024];
1923     int want_sdp = 1;
1924
1925     if (rate_emu)
1926         for (i = 0; i < nb_input_streams; i++)
1927             input_streams[i].start = av_gettime();
1928
1929     /* output stream init */
1930     for(i=0;i<nb_output_files;i++) {
1931         os = output_files[i].ctx;
1932         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1933             av_dump_format(os, i, os->filename, 1);
1934             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1935             return AVERROR(EINVAL);
1936         }
1937     }
1938
1939     /* for each output stream, we compute the right encoding parameters */
1940     for (i = 0; i < nb_output_streams; i++) {
1941         ost = &output_streams[i];
1942         os = output_files[ost->file_index].ctx;
1943         ist = &input_streams[ost->source_index];
1944
1945         codec = ost->st->codec;
1946         icodec = ist->st->codec;
1947
1948         ost->st->disposition = ist->st->disposition;
1949         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1950         codec->chroma_sample_location = icodec->chroma_sample_location;
1951
1952         if (ost->st->stream_copy) {
1953             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1954
1955             if (extra_size > INT_MAX) {
1956                 return AVERROR(EINVAL);
1957             }
1958
1959             /* if stream_copy is selected, no need to decode or encode */
1960             codec->codec_id = icodec->codec_id;
1961             codec->codec_type = icodec->codec_type;
1962
1963             if(!codec->codec_tag){
1964                 if(   !os->oformat->codec_tag
1965                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1966                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1967                     codec->codec_tag = icodec->codec_tag;
1968             }
1969
1970             codec->bit_rate = icodec->bit_rate;
1971             codec->rc_max_rate    = icodec->rc_max_rate;
1972             codec->rc_buffer_size = icodec->rc_buffer_size;
1973             codec->extradata= av_mallocz(extra_size);
1974             if (!codec->extradata) {
1975                 return AVERROR(ENOMEM);
1976             }
1977             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1978             codec->extradata_size= icodec->extradata_size;
1979
1980             codec->time_base = ist->st->time_base;
1981             if(!strcmp(os->oformat->name, "avi")) {
1982                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1983                     codec->time_base = icodec->time_base;
1984                     codec->time_base.num *= icodec->ticks_per_frame;
1985                     codec->time_base.den *= 2;
1986                 }
1987             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
1988                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1989                     codec->time_base = icodec->time_base;
1990                     codec->time_base.num *= icodec->ticks_per_frame;
1991                 }
1992             }
1993             av_reduce(&codec->time_base.num, &codec->time_base.den,
1994                         codec->time_base.num, codec->time_base.den, INT_MAX);
1995
1996             switch(codec->codec_type) {
1997             case AVMEDIA_TYPE_AUDIO:
1998                 if(audio_volume != 256) {
1999                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2000                     exit_program(1);
2001                 }
2002                 codec->channel_layout = icodec->channel_layout;
2003                 codec->sample_rate = icodec->sample_rate;
2004                 codec->channels = icodec->channels;
2005                 codec->frame_size = icodec->frame_size;
2006                 codec->audio_service_type = icodec->audio_service_type;
2007                 codec->block_align= icodec->block_align;
2008                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2009                     codec->block_align= 0;
2010                 if(codec->codec_id == CODEC_ID_AC3)
2011                     codec->block_align= 0;
2012                 break;
2013             case AVMEDIA_TYPE_VIDEO:
2014                 codec->pix_fmt = icodec->pix_fmt;
2015                 codec->width = icodec->width;
2016                 codec->height = icodec->height;
2017                 codec->has_b_frames = icodec->has_b_frames;
2018                 if (!codec->sample_aspect_ratio.num) {
2019                     codec->sample_aspect_ratio =
2020                     ost->st->sample_aspect_ratio =
2021                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2022                         ist->st->codec->sample_aspect_ratio.num ?
2023                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2024                 }
2025                 break;
2026             case AVMEDIA_TYPE_SUBTITLE:
2027                 codec->width = icodec->width;
2028                 codec->height = icodec->height;
2029                 break;
2030             case AVMEDIA_TYPE_DATA:
2031                 break;
2032             default:
2033                 abort();
2034             }
2035         } else {
2036             if (!ost->enc)
2037                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2038             switch(codec->codec_type) {
2039             case AVMEDIA_TYPE_AUDIO:
2040                 ost->fifo= av_fifo_alloc(1024);
2041                 if (!ost->fifo) {
2042                     return AVERROR(ENOMEM);
2043                 }
2044                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2045                 if (!codec->sample_rate) {
2046                     codec->sample_rate = icodec->sample_rate;
2047                 }
2048                 choose_sample_rate(ost->st, ost->enc);
2049                 codec->time_base = (AVRational){1, codec->sample_rate};
2050                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2051                     codec->sample_fmt = icodec->sample_fmt;
2052                 choose_sample_fmt(ost->st, ost->enc);
2053                 if (!codec->channels) {
2054                     codec->channels = icodec->channels;
2055                     codec->channel_layout = icodec->channel_layout;
2056                 }
2057                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2058                     codec->channel_layout = 0;
2059                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2060                 icodec->request_channels = codec->channels;
2061                 ist->decoding_needed = 1;
2062                 ost->encoding_needed = 1;
2063                 ost->resample_sample_fmt  = icodec->sample_fmt;
2064                 ost->resample_sample_rate = icodec->sample_rate;
2065                 ost->resample_channels    = icodec->channels;
2066                 break;
2067             case AVMEDIA_TYPE_VIDEO:
2068                 if (codec->pix_fmt == PIX_FMT_NONE)
2069                     codec->pix_fmt = icodec->pix_fmt;
2070                 choose_pixel_fmt(ost->st, ost->enc);
2071
2072                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2073                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2074                     exit_program(1);
2075                 }
2076
2077                 if (!codec->width || !codec->height) {
2078                     codec->width  = icodec->width;
2079                     codec->height = icodec->height;
2080                 }
2081
2082                 ost->video_resample = codec->width   != icodec->width  ||
2083                                       codec->height  != icodec->height ||
2084                                       codec->pix_fmt != icodec->pix_fmt;
2085                 if (ost->video_resample) {
2086                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2087                 }
2088
2089                 ost->resample_height = icodec->height;
2090                 ost->resample_width  = icodec->width;
2091                 ost->resample_pix_fmt= icodec->pix_fmt;
2092                 ost->encoding_needed = 1;
2093                 ist->decoding_needed = 1;
2094
2095                 if (!ost->frame_rate.num)
2096                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2097                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2098                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2099                     ost->frame_rate = ost->enc->supported_framerates[idx];
2100                 }
2101                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2102                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2103                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2104                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2105                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2106                 }
2107
2108 #if CONFIG_AVFILTER
2109                 if (configure_video_filters(ist, ost)) {
2110                     fprintf(stderr, "Error opening filters!\n");
2111                     exit(1);
2112                 }
2113 #endif
2114                 break;
2115             case AVMEDIA_TYPE_SUBTITLE:
2116                 ost->encoding_needed = 1;
2117                 ist->decoding_needed = 1;
2118                 break;
2119             default:
2120                 abort();
2121                 break;
2122             }
2123             /* two pass mode */
2124             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2125                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2126                 char logfilename[1024];
2127                 FILE *f;
2128
2129                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2130                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2131                          i);
2132                 if (codec->flags & CODEC_FLAG_PASS1) {
2133                     f = fopen(logfilename, "wb");
2134                     if (!f) {
2135                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2136                         exit_program(1);
2137                     }
2138                     ost->logfile = f;
2139                 } else {
2140                     char  *logbuffer;
2141                     size_t logbuffer_size;
2142                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2143                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2144                         exit_program(1);
2145                     }
2146                     codec->stats_in = logbuffer;
2147                 }
2148             }
2149         }
2150         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2151             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2152             int size= codec->width * codec->height;
2153             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2154         }
2155     }
2156
2157     if (!bit_buffer)
2158         bit_buffer = av_malloc(bit_buffer_size);
2159     if (!bit_buffer) {
2160         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2161                 bit_buffer_size);
2162         return AVERROR(ENOMEM);
2163     }
2164
2165     /* open each encoder */
2166     for (i = 0; i < nb_output_streams; i++) {
2167         ost = &output_streams[i];
2168         if (ost->encoding_needed) {
2169             AVCodec *codec = ost->enc;
2170             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2171             if (!codec) {
2172                 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d.%d",
2173                          avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2174                 ret = AVERROR(EINVAL);
2175                 goto dump_format;
2176             }
2177             if (dec->subtitle_header) {
2178                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2179                 if (!ost->st->codec->subtitle_header) {
2180                     ret = AVERROR(ENOMEM);
2181                     goto dump_format;
2182                 }
2183                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2184                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2185             }
2186             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2187                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2188                         ost->file_index, ost->index);
2189                 ret = AVERROR(EINVAL);
2190                 goto dump_format;
2191             }
2192             assert_codec_experimental(ost->st->codec, 1);
2193             assert_avoptions(ost->opts);
2194             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2195                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2196                                              "It takes bits/s as argument, not kbits/s\n");
2197             extra_size += ost->st->codec->extradata_size;
2198         }
2199     }
2200
2201     /* init input streams */
2202     for (i = 0; i < nb_input_streams; i++)
2203         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2204             goto dump_format;
2205
2206     /* open files and write file headers */
2207     for (i = 0; i < nb_output_files; i++) {
2208         os = output_files[i].ctx;
2209         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2210             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2211             ret = AVERROR(EINVAL);
2212             goto dump_format;
2213         }
2214 //        assert_avoptions(output_files[i].opts);
2215         if (strcmp(os->oformat->name, "rtp")) {
2216             want_sdp = 0;
2217         }
2218     }
2219
2220  dump_format:
2221     /* dump the file output parameters - cannot be done before in case
2222        of stream copy */
2223     for(i=0;i<nb_output_files;i++) {
2224         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2225     }
2226
2227     /* dump the stream mapping */
2228     if (verbose >= 0) {
2229         fprintf(stderr, "Stream mapping:\n");
2230         for (i = 0; i < nb_output_streams;i ++) {
2231             ost = &output_streams[i];
2232             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2233                     input_streams[ost->source_index].file_index,
2234                     input_streams[ost->source_index].st->index,
2235                     ost->file_index,
2236                     ost->index);
2237             if (ost->sync_ist != &input_streams[ost->source_index])
2238                 fprintf(stderr, " [sync #%d.%d]",
2239                         ost->sync_ist->file_index,
2240                         ost->sync_ist->st->index);
2241             if (ost->st->stream_copy)
2242                 fprintf(stderr, " (copy)");
2243             else
2244                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2245                         input_streams[ost->source_index].dec->name : "?",
2246                         ost->enc ? ost->enc->name : "?");
2247             fprintf(stderr, "\n");
2248         }
2249     }
2250
2251     if (ret) {
2252         fprintf(stderr, "%s\n", error);
2253         return ret;
2254     }
2255
2256     if (want_sdp) {
2257         print_sdp(output_files, nb_output_files);
2258     }
2259
2260     return 0;
2261 }
2262
2263 /*
2264  * The following code is the main loop of the file converter
2265  */
2266 static int transcode(OutputFile *output_files,
2267                      int nb_output_files,
2268                      InputFile *input_files,
2269                      int nb_input_files)
2270 {
2271     int ret, i;
2272     AVFormatContext *is, *os;
2273     OutputStream *ost;
2274     InputStream *ist;
2275     uint8_t *no_packet;
2276     int no_packet_count=0;
2277     int64_t timer_start;
2278     int key;
2279
2280     if (!(no_packet = av_mallocz(nb_input_files)))
2281         exit_program(1);
2282
2283     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2284     if (ret < 0)
2285         goto fail;
2286
2287     if (!using_stdin) {
2288         if(verbose >= 0)
2289             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2290         avio_set_interrupt_cb(decode_interrupt_cb);
2291     }
2292     term_init();
2293
2294     timer_start = av_gettime();
2295
2296     for(; received_sigterm == 0;) {
2297         int file_index, ist_index;
2298         AVPacket pkt;
2299         int64_t ipts_min;
2300         double opts_min;
2301
2302         ipts_min= INT64_MAX;
2303         opts_min= 1e100;
2304         /* if 'q' pressed, exits */
2305         if (!using_stdin) {
2306             if (q_pressed)
2307                 break;
2308             /* read_key() returns 0 on EOF */
2309             key = read_key();
2310             if (key == 'q')
2311                 break;
2312             if (key == '+') verbose++;
2313             if (key == '-') verbose--;
2314             if (key == 's') qp_hist     ^= 1;
2315             if (key == 'h'){
2316                 if (do_hex_dump){
2317                     do_hex_dump = do_pkt_dump = 0;
2318                 } else if(do_pkt_dump){
2319                     do_hex_dump = 1;
2320                 } else
2321                     do_pkt_dump = 1;
2322                 av_log_set_level(AV_LOG_DEBUG);
2323             }
2324 #if CONFIG_AVFILTER
2325             if (key == 'c' || key == 'C'){
2326                 char ret[4096], target[64], cmd[256], arg[256]={0};
2327                 double ts;
2328                 int k;
2329                 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2330                 i=0;
2331                 while((k=read_key()) !='\n' && k!='\r' && i<sizeof(ret)-1)
2332                     if(k>0) ret[i++]= k;
2333                 ret[i]= 0;
2334                 if(k>0 && sscanf(ret, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &ts, cmd, arg) >= 3){
2335                     for(i=0;i<nb_output_streams;i++) {
2336                         int r;
2337                         ost = &output_streams[i];
2338                         if(ost->graph){
2339                             if(ts<0){
2340                                 r= avfilter_graph_send_command(ost->graph, target, cmd, arg, ret, sizeof(ret), key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2341                                 fprintf(stderr, "Command reply for %d: %d, %s\n", i, r, ret);
2342                             }else{
2343                                 r= avfilter_graph_queue_command(ost->graph, target, cmd, arg, 0, ts);
2344                             }
2345                         }
2346                     }
2347                 }else{
2348                     fprintf(stderr, "Parse error\n");
2349                 }
2350             }
2351 #endif
2352             if (key == 'd' || key == 'D'){
2353                 int debug=0;
2354                 if(key == 'D') {
2355                     debug = input_streams[0].st->codec->debug<<1;
2356                     if(!debug) debug = 1;
2357                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2358                         debug += debug;
2359                 }else
2360                     scanf("%d", &debug);
2361                 for(i=0;i<nb_input_streams;i++) {
2362                     input_streams[i].st->codec->debug = debug;
2363                 }
2364                 for(i=0;i<nb_output_streams;i++) {
2365                     ost = &output_streams[i];
2366                     ost->st->codec->debug = debug;
2367                 }
2368                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2369                 fprintf(stderr,"debug=%d\n", debug);
2370             }
2371             if (key == '?'){
2372                 fprintf(stderr, "key    function\n"
2373                                 "?      show this help\n"
2374                                 "+      increase verbosity\n"
2375                                 "-      decrease verbosity\n"
2376                                 "c      Send command to filtergraph\n"
2377                                 "D      cycle through available debug modes\n"
2378                                 "h      dump packets/hex press to cycle through the 3 states\n"
2379                                 "q      quit\n"
2380                                 "s      Show QP histogram\n"
2381                 );
2382             }
2383         }
2384
2385         /* select the stream that we must read now by looking at the
2386            smallest output pts */
2387         file_index = -1;
2388         for (i = 0; i < nb_output_streams; i++) {
2389             OutputFile *of;
2390             int64_t ipts;
2391             double  opts;
2392             ost = &output_streams[i];
2393             of = &output_files[ost->file_index];
2394             os = output_files[ost->file_index].ctx;
2395             ist = &input_streams[ost->source_index];
2396             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2397                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2398                 continue;
2399             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2400             ipts = ist->pts;
2401             if (!input_files[ist->file_index].eof_reached){
2402                 if(ipts < ipts_min) {
2403                     ipts_min = ipts;
2404                     if(input_sync ) file_index = ist->file_index;
2405                 }
2406                 if(opts < opts_min) {
2407                     opts_min = opts;
2408                     if(!input_sync) file_index = ist->file_index;
2409                 }
2410             }
2411             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2412                 file_index= -1;
2413                 break;
2414             }
2415         }
2416         /* if none, if is finished */
2417         if (file_index < 0) {
2418             if(no_packet_count){
2419                 no_packet_count=0;
2420                 memset(no_packet, 0, nb_input_files);
2421                 usleep(10000);
2422                 continue;
2423             }
2424             break;
2425         }
2426
2427         /* read a frame from it and output it in the fifo */
2428         is = input_files[file_index].ctx;
2429         ret= av_read_frame(is, &pkt);
2430         if(ret == AVERROR(EAGAIN)){
2431             no_packet[file_index]=1;
2432             no_packet_count++;
2433             continue;
2434         }
2435         if (ret < 0) {
2436             input_files[file_index].eof_reached = 1;
2437             if (opt_shortest)
2438                 break;
2439             else
2440                 continue;
2441         }
2442
2443         no_packet_count=0;
2444         memset(no_packet, 0, nb_input_files);
2445
2446         if (do_pkt_dump) {
2447             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2448                              is->streams[pkt.stream_index]);
2449         }
2450         /* the following test is needed in case new streams appear
2451            dynamically in stream : we ignore them */
2452         if (pkt.stream_index >= input_files[file_index].nb_streams)
2453             goto discard_packet;
2454         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2455         ist = &input_streams[ist_index];
2456         if (ist->discard)
2457             goto discard_packet;
2458
2459         if (pkt.dts != AV_NOPTS_VALUE)
2460             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2461         if (pkt.pts != AV_NOPTS_VALUE)
2462             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2463
2464         if (ist->ts_scale) {
2465             if(pkt.pts != AV_NOPTS_VALUE)
2466                 pkt.pts *= ist->ts_scale;
2467             if(pkt.dts != AV_NOPTS_VALUE)
2468                 pkt.dts *= ist->ts_scale;
2469         }
2470
2471 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2472         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2473             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2474             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2475             int64_t delta= pkt_dts - ist->next_pts;
2476             if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2477                 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2478                  ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2479                 pkt_dts+1<ist->pts)&& !copy_ts){
2480                 input_files[ist->file_index].ts_offset -= delta;
2481                 if (verbose > 2)
2482                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2483                             delta, input_files[ist->file_index].ts_offset);
2484                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2485                 if(pkt.pts != AV_NOPTS_VALUE)
2486                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2487             }
2488         }
2489
2490         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2491         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2492
2493             if (verbose >= 0)
2494                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2495                         ist->file_index, ist->st->index);
2496             if (exit_on_error)
2497                 exit_program(1);
2498             av_free_packet(&pkt);
2499             continue;
2500         }
2501
2502     discard_packet:
2503         av_free_packet(&pkt);
2504
2505         /* dump report by using the output first video and audio streams */
2506         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2507     }
2508
2509     /* at the end of stream, we must flush the decoder buffers */
2510     for (i = 0; i < nb_input_streams; i++) {
2511         ist = &input_streams[i];
2512         if (ist->decoding_needed) {
2513             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2514         }
2515     }
2516     flush_encoders(output_streams, nb_output_streams);
2517
2518     term_exit();
2519
2520     /* write the trailer if needed and close file */
2521     for(i=0;i<nb_output_files;i++) {
2522         os = output_files[i].ctx;
2523         av_write_trailer(os);
2524     }
2525
2526     /* dump report by using the first video and audio streams */
2527     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2528
2529     /* close each encoder */
2530     for (i = 0; i < nb_output_streams; i++) {
2531         ost = &output_streams[i];
2532         if (ost->encoding_needed) {
2533             av_freep(&ost->st->codec->stats_in);
2534             avcodec_close(ost->st->codec);
2535         }
2536 #if CONFIG_AVFILTER
2537         avfilter_graph_free(&ost->graph);
2538 #endif
2539     }
2540
2541     /* close each decoder */
2542     for (i = 0; i < nb_input_streams; i++) {
2543         ist = &input_streams[i];
2544         if (ist->decoding_needed) {
2545             avcodec_close(ist->st->codec);
2546         }
2547     }
2548
2549     /* finished ! */
2550     ret = 0;
2551
2552  fail:
2553     av_freep(&bit_buffer);
2554     av_freep(&no_packet);
2555
2556     if (output_streams) {
2557         for (i = 0; i < nb_output_streams; i++) {
2558             ost = &output_streams[i];
2559             if (ost) {
2560                 if (ost->st->stream_copy)
2561                     av_freep(&ost->st->codec->extradata);
2562                 if (ost->logfile) {
2563                     fclose(ost->logfile);
2564                     ost->logfile = NULL;
2565                 }
2566                 av_fifo_free(ost->fifo); /* works even if fifo is not
2567                                              initialized but set to zero */
2568                 av_freep(&ost->st->codec->subtitle_header);
2569                 av_free(ost->resample_frame.data[0]);
2570                 av_free(ost->forced_kf_pts);
2571                 if (ost->video_resample)
2572                     sws_freeContext(ost->img_resample_ctx);
2573                 if (ost->resample)
2574                     audio_resample_close(ost->resample);
2575                 if (ost->reformat_ctx)
2576                     av_audio_convert_free(ost->reformat_ctx);
2577                 av_dict_free(&ost->opts);
2578             }
2579         }
2580     }
2581     return ret;
2582 }
2583
2584 static int opt_format(const char *opt, const char *arg)
2585 {
2586     last_asked_format = arg;
2587     return 0;
2588 }
2589
2590 static int opt_video_rc_override_string(const char *opt, const char *arg)
2591 {
2592     video_rc_override_string = arg;
2593     return 0;
2594 }
2595
2596 static int opt_me_threshold(const char *opt, const char *arg)
2597 {
2598     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2599     return 0;
2600 }
2601
2602 static int opt_verbose(const char *opt, const char *arg)
2603 {
2604     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2605     return 0;
2606 }
2607
2608 static int opt_frame_rate(const char *opt, const char *arg)
2609 {
2610     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2611         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2612         exit_program(1);
2613     }
2614     return 0;
2615 }
2616
2617 static int opt_frame_crop(const char *opt, const char *arg)
2618 {
2619     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2620     return AVERROR(EINVAL);
2621 }
2622
2623 static int opt_frame_size(const char *opt, const char *arg)
2624 {
2625     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2626         fprintf(stderr, "Incorrect frame size\n");
2627         return AVERROR(EINVAL);
2628     }
2629     return 0;
2630 }
2631
2632 static int opt_pad(const char *opt, const char *arg) {
2633     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2634     return -1;
2635 }
2636
2637 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2638 {
2639     if (strcmp(arg, "list")) {
2640         frame_pix_fmt = av_get_pix_fmt(arg);
2641         if (frame_pix_fmt == PIX_FMT_NONE) {
2642             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2643             return AVERROR(EINVAL);
2644         }
2645     } else {
2646         opt_pix_fmts(NULL, NULL);
2647         exit_program(0);
2648     }
2649     return 0;
2650 }
2651
2652 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2653 {
2654     int x = 0, y = 0;
2655     double ar = 0;
2656     const char *p;
2657     char *end;
2658
2659     p = strchr(arg, ':');
2660     if (p) {
2661         x = strtol(arg, &end, 10);
2662         if (end == p)
2663             y = strtol(end+1, &end, 10);
2664         if (x > 0 && y > 0)
2665             ar = (double)x / (double)y;
2666     } else
2667         ar = strtod(arg, NULL);
2668
2669     if (!ar) {
2670         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2671         return AVERROR(EINVAL);
2672     }
2673     frame_aspect_ratio = ar;
2674     return 0;
2675 }
2676
2677 static int opt_metadata(const char *opt, const char *arg)
2678 {
2679     char *mid= strchr(arg, '=');
2680
2681     if(!mid){
2682         fprintf(stderr, "Missing =\n");
2683         exit_program(1);
2684     }
2685     *mid++= 0;
2686
2687     av_dict_set(&metadata, arg, mid, 0);
2688
2689     return 0;
2690 }
2691
2692 static int opt_qscale(const char *opt, const char *arg)
2693 {
2694     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2695     if (video_qscale <= 0 || video_qscale > 255) {
2696         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2697         return AVERROR(EINVAL);
2698     }
2699     return 0;
2700 }
2701
2702 static int opt_top_field_first(const char *opt, const char *arg)
2703 {
2704     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2705     return opt_default(opt, arg);
2706 }
2707
2708 static int opt_thread_count(const char *opt, const char *arg)
2709 {
2710     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2711 #if !HAVE_THREADS
2712     if (verbose >= 0)
2713         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2714 #endif
2715     return 0;
2716 }
2717
2718 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2719 {
2720     if (strcmp(arg, "list")) {
2721         audio_sample_fmt = av_get_sample_fmt(arg);
2722         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2723             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2724             return AVERROR(EINVAL);
2725         }
2726     } else {
2727         int i;
2728         char fmt_str[128];
2729         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2730             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2731         exit_program(0);
2732     }
2733     return 0;
2734 }
2735
2736 static int opt_audio_rate(const char *opt, const char *arg)
2737 {
2738     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2739     return 0;
2740 }
2741
2742 static int opt_audio_channels(const char *opt, const char *arg)
2743 {
2744     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2745     return 0;
2746 }
2747
2748 static int opt_video_channel(const char *opt, const char *arg)
2749 {
2750     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2751     return opt_default("channel", arg);
2752 }
2753
2754 static int opt_video_standard(const char *opt, const char *arg)
2755 {
2756     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2757     return opt_default("standard", arg);
2758 }
2759
2760 static int opt_codec(const char *opt, const char *arg)
2761 {
2762     return av_dict_set(&codec_names, opt, arg, 0);
2763 }
2764
2765 static int opt_audio_codec(const char *opt, const char *arg)
2766 {
2767     return opt_codec("codec:a", arg);
2768 }
2769
2770 static int opt_video_codec(const char *opt, const char *arg)
2771 {
2772     return opt_codec("codec:v", arg);
2773 }
2774
2775 static int opt_subtitle_codec(const char *opt, const char *arg)
2776 {
2777     return opt_codec("codec:s", arg);
2778 }
2779
2780 static int opt_data_codec(const char *opt, const char *arg)
2781 {
2782     return opt_codec("codec:d", arg);
2783 }
2784
2785 static int opt_codec_tag(const char *opt, const char *arg)
2786 {
2787     char *tail;
2788     uint32_t *codec_tag;
2789
2790     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2791                 !strcmp(opt, "vtag") ? &video_codec_tag :
2792                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2793     if (!codec_tag)
2794         return -1;
2795
2796     *codec_tag = strtol(arg, &tail, 0);
2797     if (!tail || *tail)
2798         *codec_tag = AV_RL32(arg);
2799
2800     return 0;
2801 }
2802
2803 static int opt_map(const char *opt, const char *arg)
2804 {
2805     StreamMap *m = NULL;
2806     int i, negative = 0, file_idx;
2807     int sync_file_idx = -1, sync_stream_idx;
2808     char *p, *sync;
2809     char *map;
2810
2811     if (*arg == '-') {
2812         negative = 1;
2813         arg++;
2814     }
2815     map = av_strdup(arg);
2816
2817     /* parse sync stream first, just pick first matching stream */
2818     if (sync = strchr(map, ',')) {
2819         *sync = 0;
2820         sync_file_idx = strtol(sync + 1, &sync, 0);
2821         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2822             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2823             exit_program(1);
2824         }
2825         if (*sync)
2826             sync++;
2827         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2828             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2829                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2830                 sync_stream_idx = i;
2831                 break;
2832             }
2833         if (i == input_files[sync_file_idx].nb_streams) {
2834             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2835                                        "match any streams.\n", arg);
2836             exit_program(1);
2837         }
2838     }
2839
2840
2841     file_idx = strtol(map, &p, 0);
2842     if (file_idx >= nb_input_files || file_idx < 0) {
2843         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2844         exit_program(1);
2845     }
2846     if (negative)
2847         /* disable some already defined maps */
2848         for (i = 0; i < nb_stream_maps; i++) {
2849             m = &stream_maps[i];
2850             if (check_stream_specifier(input_files[m->file_index].ctx,
2851                                        input_files[m->file_index].ctx->streams[m->stream_index],
2852                                        *p == ':' ? p + 1 : p) > 0)
2853                 m->disabled = 1;
2854         }
2855     else
2856         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2857             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2858                         *p == ':' ? p + 1 : p) <= 0)
2859                 continue;
2860             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2861             m = &stream_maps[nb_stream_maps - 1];
2862
2863             m->file_index   = file_idx;
2864             m->stream_index = i;
2865
2866             if (sync_file_idx >= 0) {
2867                 m->sync_file_index   = sync_file_idx;
2868                 m->sync_stream_index = sync_stream_idx;
2869             } else {
2870                 m->sync_file_index   = file_idx;
2871                 m->sync_stream_index = i;
2872             }
2873         }
2874
2875     if (!m) {
2876         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2877         exit_program(1);
2878     }
2879
2880     av_freep(&map);
2881     return 0;
2882 }
2883
2884 static void parse_meta_type(char *arg, char *type, int *index)
2885 {
2886     if (*arg == ':') {
2887         *type = *(++arg);
2888         switch (*arg) {
2889         case 'g':
2890             break;
2891         case 's':
2892         case 'c':
2893         case 'p':
2894             if (*(++arg) == ':')
2895                 *index = strtol(++arg, NULL, 0);
2896             break;
2897         default:
2898             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2899             exit_program(1);
2900         }
2901     } else
2902         *type = 'g';
2903 }
2904
2905 static int opt_map_metadata(const char *opt, const char *arg)
2906 {
2907     MetadataMap *m, *m1;
2908     char *p;
2909
2910     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2911                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2912
2913     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2914     m->file = strtol(arg, &p, 0);
2915     parse_meta_type(p, &m->type, &m->index);
2916
2917     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2918     if (p = strchr(opt, ':'))
2919         parse_meta_type(p, &m1->type, &m1->index);
2920     else
2921         m1->type = 'g';
2922
2923     if (m->type == 'g' || m1->type == 'g')
2924         metadata_global_autocopy = 0;
2925     if (m->type == 's' || m1->type == 's')
2926         metadata_streams_autocopy = 0;
2927     if (m->type == 'c' || m1->type == 'c')
2928         metadata_chapters_autocopy = 0;
2929
2930     return 0;
2931 }
2932
2933 static int opt_map_meta_data(const char *opt, const char *arg)
2934 {
2935     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
2936                     "Use -map_metadata instead.\n");
2937     return opt_map_metadata(opt, arg);
2938 }
2939
2940 static int opt_input_ts_scale(const char *opt, const char *arg)
2941 {
2942     return av_dict_set(&ts_scale, opt, arg, 0);
2943 }
2944
2945 static int opt_recording_time(const char *opt, const char *arg)
2946 {
2947     recording_time = parse_time_or_die(opt, arg, 1);
2948     return 0;
2949 }
2950
2951 static int opt_start_time(const char *opt, const char *arg)
2952 {
2953     start_time = parse_time_or_die(opt, arg, 1);
2954     return 0;
2955 }
2956
2957 static int opt_recording_timestamp(const char *opt, const char *arg)
2958 {
2959     char buf[128];
2960     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
2961     struct tm time = *gmtime((time_t*)&recording_timestamp);
2962     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
2963     opt_metadata("metadata", buf);
2964
2965     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
2966                                  "tag instead.\n", opt);
2967     return 0;
2968 }
2969
2970 static int opt_input_ts_offset(const char *opt, const char *arg)
2971 {
2972     input_ts_offset = parse_time_or_die(opt, arg, 1);
2973     return 0;
2974 }
2975
2976 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2977 {
2978     const char *codec_string = encoder ? "encoder" : "decoder";
2979     AVCodec *codec;
2980
2981     if(!name)
2982         return CODEC_ID_NONE;
2983     codec = encoder ?
2984         avcodec_find_encoder_by_name(name) :
2985         avcodec_find_decoder_by_name(name);
2986     if(!codec) {
2987         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2988         exit_program(1);
2989     }
2990     if(codec->type != type) {
2991         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2992         exit_program(1);
2993     }
2994     return codec->id;
2995 }
2996
2997 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2998 {
2999     AVDictionaryEntry *e = NULL;
3000     char *codec_name = NULL;
3001     int ret;
3002
3003     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
3004         char *p = strchr(e->key, ':');
3005
3006         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
3007             codec_name = e->value;
3008         else if (ret < 0)
3009             exit_program(1);
3010     }
3011
3012     if (!codec_name) {
3013         if (s->oformat) {
3014             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
3015             return avcodec_find_encoder(st->codec->codec_id);
3016         }
3017     } else if (!strcmp(codec_name, "copy"))
3018         st->stream_copy = 1;
3019     else {
3020         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
3021         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
3022                             avcodec_find_decoder_by_name(codec_name);
3023     }
3024
3025     return NULL;
3026 }
3027
3028 /**
3029  * Add all the streams from the given input file to the global
3030  * list of input streams.
3031  */
3032 static void add_input_streams(AVFormatContext *ic)
3033 {
3034     int i, rfps, rfps_base, ret;
3035
3036     for (i = 0; i < ic->nb_streams; i++) {
3037         AVStream *st = ic->streams[i];
3038         AVCodecContext *dec = st->codec;
3039         AVDictionaryEntry *e = NULL;
3040         InputStream *ist;
3041         char *scale = NULL;
3042
3043         dec->thread_count = thread_count;
3044
3045         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3046         ist = &input_streams[nb_input_streams - 1];
3047         ist->st = st;
3048         ist->file_index = nb_input_files;
3049         ist->discard = 1;
3050         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3051
3052         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
3053             char *p = strchr(e->key, ':');
3054
3055             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
3056                 scale = e->value;
3057             else if (ret < 0)
3058                 exit_program(1);
3059         }
3060         if (scale)
3061             ist->ts_scale = strtod(scale, NULL);
3062
3063         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
3064         if (!ist->dec)
3065             ist->dec = avcodec_find_decoder(dec->codec_id);
3066
3067         switch (dec->codec_type) {
3068         case AVMEDIA_TYPE_AUDIO:
3069             if(!ist->dec)
3070                 ist->dec = avcodec_find_decoder(dec->codec_id);
3071             if(audio_disable)
3072                 st->discard= AVDISCARD_ALL;
3073             break;
3074         case AVMEDIA_TYPE_VIDEO:
3075             if(!ist->dec)
3076                 ist->dec = avcodec_find_decoder(dec->codec_id);
3077             rfps      = ic->streams[i]->r_frame_rate.num;
3078             rfps_base = ic->streams[i]->r_frame_rate.den;
3079             if (dec->lowres) {
3080                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3081             }
3082             if(me_threshold)
3083                 dec->debug |= FF_DEBUG_MV;
3084
3085             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3086
3087                 if (verbose >= 0)
3088                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3089                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3090
3091                     (float)rfps / rfps_base, rfps, rfps_base);
3092             }
3093
3094             if(video_disable)
3095                 st->discard= AVDISCARD_ALL;
3096             else if(video_discard)
3097                 st->discard= video_discard;
3098             break;
3099         case AVMEDIA_TYPE_DATA:
3100             break;
3101         case AVMEDIA_TYPE_SUBTITLE:
3102             if(!ist->dec)
3103                 ist->dec = avcodec_find_decoder(dec->codec_id);
3104             if(subtitle_disable)
3105                 st->discard = AVDISCARD_ALL;
3106             break;
3107         case AVMEDIA_TYPE_ATTACHMENT:
3108         case AVMEDIA_TYPE_UNKNOWN:
3109             break;
3110         default:
3111             abort();
3112         }
3113     }
3114 }
3115
3116 static int opt_input_file(const char *opt, const char *filename)
3117 {
3118     AVFormatContext *ic;
3119     AVInputFormat *file_iformat = NULL;
3120     int err, i, ret;
3121     int64_t timestamp;
3122     uint8_t buf[128];
3123     AVDictionary **opts;
3124     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3125
3126     if (last_asked_format) {
3127         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3128             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3129             exit_program(1);
3130         }
3131         last_asked_format = NULL;
3132     }
3133
3134     if (!strcmp(filename, "-"))
3135         filename = "pipe:";
3136
3137     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3138                     !strcmp(filename, "/dev/stdin");
3139
3140     /* get default parameters from command line */
3141     ic = avformat_alloc_context();
3142     if (!ic) {
3143         print_error(filename, AVERROR(ENOMEM));
3144         exit_program(1);
3145     }
3146     if (audio_sample_rate) {
3147         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3148         av_dict_set(&format_opts, "sample_rate", buf, 0);
3149     }
3150     if (audio_channels) {
3151         snprintf(buf, sizeof(buf), "%d", audio_channels);
3152         av_dict_set(&format_opts, "channels", buf, 0);
3153     }
3154     if (frame_rate.num) {
3155         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3156         av_dict_set(&format_opts, "framerate", buf, 0);
3157     }
3158     if (frame_width && frame_height) {
3159         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3160         av_dict_set(&format_opts, "video_size", buf, 0);
3161     }
3162     if (frame_pix_fmt != PIX_FMT_NONE)
3163         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3164
3165     ic->flags |= AVFMT_FLAG_NONBLOCK;
3166
3167     if (loop_input) {
3168         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3169         ic->loop_input = loop_input;
3170     }
3171
3172     /* open the input file with generic libav function */
3173     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3174     if (err < 0) {
3175         print_error(filename, err);
3176         exit_program(1);
3177     }
3178     assert_avoptions(format_opts);
3179
3180     if(opt_programid) {
3181         int i, j;
3182         int found=0;
3183         for(i=0; i<ic->nb_streams; i++){
3184             ic->streams[i]->discard= AVDISCARD_ALL;
3185         }
3186         for(i=0; i<ic->nb_programs; i++){
3187             AVProgram *p= ic->programs[i];
3188             if(p->id != opt_programid){
3189                 p->discard = AVDISCARD_ALL;
3190             }else{
3191                 found=1;
3192                 for(j=0; j<p->nb_stream_indexes; j++){
3193                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3194                 }
3195             }
3196         }
3197         if(!found){
3198             fprintf(stderr, "Specified program id not found\n");
3199             exit_program(1);
3200         }
3201         opt_programid=0;
3202     }
3203
3204     /* apply forced codec ids */
3205     for (i = 0; i < ic->nb_streams; i++)
3206         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3207
3208     /* Set AVCodecContext options for avformat_find_stream_info */
3209     opts = setup_find_stream_info_opts(ic, codec_opts);
3210     orig_nb_streams = ic->nb_streams;
3211
3212     /* If not enough info to get the stream parameters, we decode the
3213        first frames to get it. (used in mpeg case for example) */
3214     ret = avformat_find_stream_info(ic, opts);
3215     if (ret < 0 && verbose >= 0) {
3216         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3217         av_close_input_file(ic);
3218         exit_program(1);
3219     }
3220
3221     timestamp = start_time;
3222     /* add the stream start time */
3223     if (ic->start_time != AV_NOPTS_VALUE)
3224         timestamp += ic->start_time;
3225
3226     /* if seeking requested, we execute it */
3227     if (start_time != 0) {
3228         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3229         if (ret < 0) {
3230             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3231                     filename, (double)timestamp / AV_TIME_BASE);
3232         }
3233         /* reset seek info */
3234         start_time = 0;
3235     }
3236
3237     /* update the current parameters so that they match the one of the input stream */
3238     add_input_streams(ic);
3239
3240     /* dump the file content */
3241     if (verbose >= 0)
3242         av_dump_format(ic, nb_input_files, filename, 0);
3243
3244     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3245     input_files[nb_input_files - 1].ctx        = ic;
3246     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3247     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3248     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3249
3250     top_field_first = -1;
3251     frame_rate    = (AVRational){0, 0};
3252     frame_pix_fmt = PIX_FMT_NONE;
3253     frame_height = 0;
3254     frame_width  = 0;
3255     audio_sample_rate = 0;
3256     audio_channels    = 0;
3257     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3258     av_dict_free(&ts_scale);
3259     input_ts_offset = 0;
3260
3261     for (i = 0; i < orig_nb_streams; i++)
3262         av_dict_free(&opts[i]);
3263     av_freep(&opts);
3264     av_dict_free(&codec_names);
3265     uninit_opts();
3266     init_opts();
3267     return 0;
3268 }
3269
3270 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3271                                     AVCodecContext *avctx)
3272 {
3273     char *p;
3274     int n = 1, i;
3275     int64_t t;
3276
3277     for (p = kf; *p; p++)
3278         if (*p == ',')
3279             n++;
3280     ost->forced_kf_count = n;
3281     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3282     if (!ost->forced_kf_pts) {
3283         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3284         exit_program(1);
3285     }
3286     for (i = 0; i < n; i++) {
3287         p = i ? strchr(p, ',') + 1 : kf;
3288         t = parse_time_or_die("force_key_frames", p, 1);
3289         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3290     }
3291 }
3292
3293 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3294 {
3295     OutputStream *ost;
3296     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3297     int idx      = oc->nb_streams - 1;
3298
3299     if (!st) {
3300         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3301         exit_program(1);
3302     }
3303
3304     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3305                                 nb_output_streams + 1);
3306     ost = &output_streams[nb_output_streams - 1];
3307     ost->file_index = nb_output_files;
3308     ost->index = idx;
3309     ost->st    = st;
3310     st->codec->codec_type = type;
3311     ost->enc = choose_codec(oc, st, type, codec_names);
3312     if (ost->enc) {
3313         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3314     }
3315
3316     avcodec_get_context_defaults3(st->codec, ost->enc);
3317     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3318
3319     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3320     return ost;
3321 }
3322
3323 static OutputStream *new_video_stream(AVFormatContext *oc)
3324 {
3325     AVStream *st;
3326     OutputStream *ost;
3327     AVCodecContext *video_enc;
3328
3329     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3330     st  = ost->st;
3331     if (!st->stream_copy) {
3332         ost->frame_aspect_ratio = frame_aspect_ratio;
3333         frame_aspect_ratio = 0;
3334 #if CONFIG_AVFILTER
3335         ost->avfilter = vfilters;
3336         vfilters = NULL;
3337 #endif
3338     }
3339
3340     ost->bitstream_filters = video_bitstream_filters;
3341     video_bitstream_filters= NULL;
3342
3343     st->codec->thread_count= thread_count;
3344
3345     video_enc = st->codec;
3346
3347     if(video_codec_tag)
3348         video_enc->codec_tag= video_codec_tag;
3349
3350     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3351         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3352     }
3353
3354     if (st->stream_copy) {
3355         video_enc->sample_aspect_ratio =
3356         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3357     } else {
3358         const char *p;
3359         int i;
3360
3361         if (frame_rate.num)
3362             ost->frame_rate = frame_rate;
3363
3364         video_enc->width = frame_width;
3365         video_enc->height = frame_height;
3366         video_enc->pix_fmt = frame_pix_fmt;
3367         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3368         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3369
3370         if (intra_only)
3371             video_enc->gop_size = 0;
3372         if (video_qscale || same_quant) {
3373             video_enc->flags |= CODEC_FLAG_QSCALE;
3374             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3375         }
3376
3377         if(intra_matrix)
3378             video_enc->intra_matrix = intra_matrix;
3379         if(inter_matrix)
3380             video_enc->inter_matrix = inter_matrix;
3381
3382         p= video_rc_override_string;
3383         for(i=0; p; i++){
3384             int start, end, q;
3385             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3386             if(e!=3){
3387                 fprintf(stderr, "error parsing rc_override\n");
3388                 exit_program(1);
3389             }
3390             video_enc->rc_override=
3391                 av_realloc(video_enc->rc_override,
3392                            sizeof(RcOverride)*(i+1));
3393             video_enc->rc_override[i].start_frame= start;
3394             video_enc->rc_override[i].end_frame  = end;
3395             if(q>0){
3396                 video_enc->rc_override[i].qscale= q;
3397                 video_enc->rc_override[i].quality_factor= 1.0;
3398             }
3399             else{
3400                 video_enc->rc_override[i].qscale= 0;
3401                 video_enc->rc_override[i].quality_factor= -q/100.0;
3402             }
3403             p= strchr(p, '/');
3404             if(p) p++;
3405         }
3406         video_enc->rc_override_count=i;
3407         if (!video_enc->rc_initial_buffer_occupancy)
3408             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3409         video_enc->me_threshold= me_threshold;
3410         video_enc->intra_dc_precision= intra_dc_precision - 8;
3411
3412         if (do_psnr)
3413             video_enc->flags|= CODEC_FLAG_PSNR;
3414
3415         /* two pass mode */
3416         if (do_pass) {
3417             if (do_pass == 1) {
3418                 video_enc->flags |= CODEC_FLAG_PASS1;
3419             } else {
3420                 video_enc->flags |= CODEC_FLAG_PASS2;
3421             }
3422         }
3423
3424         if (forced_key_frames)
3425             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3426     }
3427     if (video_language) {
3428         av_dict_set(&st->metadata, "language", video_language, 0);
3429         av_freep(&video_language);
3430     }
3431
3432     /* reset some key parameters */
3433     video_disable = 0;
3434     av_freep(&forced_key_frames);
3435     frame_pix_fmt = PIX_FMT_NONE;
3436     return ost;
3437 }
3438
3439 static OutputStream *new_audio_stream(AVFormatContext *oc)
3440 {
3441     AVStream *st;
3442     OutputStream *ost;
3443     AVCodecContext *audio_enc;
3444
3445     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3446     st  = ost->st;
3447
3448     ost->bitstream_filters = audio_bitstream_filters;
3449     audio_bitstream_filters= NULL;
3450
3451     st->codec->thread_count= thread_count;
3452
3453     audio_enc = st->codec;
3454     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3455
3456     if(audio_codec_tag)
3457         audio_enc->codec_tag= audio_codec_tag;
3458
3459     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3460         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3461     }
3462     if (!st->stream_copy) {
3463         if (audio_qscale > QSCALE_NONE) {
3464             audio_enc->flags |= CODEC_FLAG_QSCALE;
3465             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3466         }
3467         if (audio_channels)
3468             audio_enc->channels = audio_channels;
3469         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3470             audio_enc->sample_fmt = audio_sample_fmt;
3471         if (audio_sample_rate)
3472             audio_enc->sample_rate = audio_sample_rate;
3473     }
3474     if (audio_language) {
3475         av_dict_set(&st->metadata, "language", audio_language, 0);
3476         av_freep(&audio_language);
3477     }
3478
3479     /* reset some key parameters */
3480     audio_disable = 0;
3481
3482     return ost;
3483 }
3484
3485 static OutputStream *new_data_stream(AVFormatContext *oc)
3486 {
3487     AVStream *st;
3488     OutputStream *ost;
3489     AVCodecContext *data_enc;
3490
3491     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3492     st  = ost->st;
3493     data_enc = st->codec;
3494     if (!st->stream_copy) {
3495         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3496         exit_program(1);
3497     }
3498
3499     if (data_codec_tag)
3500         data_enc->codec_tag= data_codec_tag;
3501
3502     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3503         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3504     }
3505
3506     data_disable = 0;
3507     return ost;
3508 }
3509
3510 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3511 {
3512     AVStream *st;
3513     OutputStream *ost;
3514     AVCodecContext *subtitle_enc;
3515
3516     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3517     st  = ost->st;
3518     subtitle_enc = st->codec;
3519
3520     ost->bitstream_filters = subtitle_bitstream_filters;
3521     subtitle_bitstream_filters= NULL;
3522
3523     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3524
3525     if(subtitle_codec_tag)
3526         subtitle_enc->codec_tag= subtitle_codec_tag;
3527
3528     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3529         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3530     }
3531
3532     if (subtitle_language) {
3533         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3534         av_freep(&subtitle_language);
3535     }
3536
3537     subtitle_disable = 0;
3538     return ost;
3539 }
3540
3541 /* arg format is "output-stream-index:streamid-value". */
3542 static int opt_streamid(const char *opt, const char *arg)
3543 {
3544     int idx;
3545     char *p;
3546     char idx_str[16];
3547
3548     av_strlcpy(idx_str, arg, sizeof(idx_str));
3549     p = strchr(idx_str, ':');
3550     if (!p) {
3551         fprintf(stderr,
3552                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3553                 arg, opt);
3554         exit_program(1);
3555     }
3556     *p++ = '\0';
3557     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3558     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3559     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3560     return 0;
3561 }
3562 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3563 {
3564     int i, err;
3565     AVFormatContext *ic = NULL;
3566
3567     err = avformat_open_input(&ic, filename, NULL, NULL);
3568     if (err < 0)
3569         return err;
3570     /* copy stream format */
3571     for(i=0;i<ic->nb_streams;i++) {
3572         AVStream *st;
3573         OutputStream *ost;
3574         AVCodec *codec;
3575
3576         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3577         ost   = new_output_stream(s, codec->type);
3578         st    = ost->st;
3579
3580         // FIXME: a more elegant solution is needed
3581         memcpy(st, ic->streams[i], sizeof(AVStream));
3582         st->info = av_malloc(sizeof(*st->info));
3583         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3584         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3585
3586         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3587             choose_sample_fmt(st, codec);
3588         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3589             choose_pixel_fmt(st, codec);
3590     }
3591
3592     av_close_input_file(ic);
3593     return 0;
3594 }
3595
3596
3597 static int copy_chapters(int infile, int outfile)
3598 {
3599     AVFormatContext *is = input_files[infile].ctx;
3600     AVFormatContext *os = output_files[outfile].ctx;
3601     int i;
3602
3603     for (i = 0; i < is->nb_chapters; i++) {
3604         AVChapter *in_ch = is->chapters[i], *out_ch;
3605         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3606                                       AV_TIME_BASE_Q, in_ch->time_base);
3607         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3608                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3609
3610
3611         if (in_ch->end < ts_off)
3612             continue;
3613         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3614             break;
3615
3616         out_ch = av_mallocz(sizeof(AVChapter));
3617         if (!out_ch)
3618             return AVERROR(ENOMEM);
3619
3620         out_ch->id        = in_ch->id;
3621         out_ch->time_base = in_ch->time_base;
3622         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3623         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3624
3625         if (metadata_chapters_autocopy)
3626             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3627
3628         os->nb_chapters++;
3629         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3630         if (!os->chapters)
3631             return AVERROR(ENOMEM);
3632         os->chapters[os->nb_chapters - 1] = out_ch;
3633     }
3634     return 0;
3635 }
3636
3637 static int opt_output_file(const char *opt, const char *filename)
3638 {
3639     AVFormatContext *oc;
3640     int i, err;
3641     AVOutputFormat *file_oformat;
3642     OutputStream *ost;
3643     InputStream  *ist;
3644
3645     if (!strcmp(filename, "-"))
3646         filename = "pipe:";
3647
3648     err = avformat_alloc_output_context2(&oc, NULL, last_asked_format, filename);
3649     last_asked_format = NULL;
3650     if (!oc) {
3651         print_error(filename, err);
3652         exit_program(1);
3653     }
3654     file_oformat= oc->oformat;
3655
3656     if (!strcmp(file_oformat->name, "ffm") &&
3657         av_strstart(filename, "http:", NULL)) {
3658         /* special case for files sent to ffserver: we get the stream
3659            parameters from ffserver */
3660         int err = read_ffserver_streams(oc, filename);
3661         if (err < 0) {
3662             print_error(filename, err);
3663             exit_program(1);
3664         }
3665     } else if (!nb_stream_maps) {
3666         /* pick the "best" stream of each type */
3667 #define NEW_STREAM(type, index)\
3668         if (index >= 0) {\
3669             ost = new_ ## type ## _stream(oc);\
3670             ost->source_index = index;\
3671             ost->sync_ist     = &input_streams[index];\
3672             input_streams[index].discard = 0;\
3673         }
3674
3675         /* video: highest resolution */
3676         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3677             int area = 0, idx = -1;
3678