Fix build with swscale disabled
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/libm.h"
44 #include "libavformat/os_support.h"
45
46 #if CONFIG_AVFILTER
47 # include "libavfilter/avfilter.h"
48 # include "libavfilter/avfiltergraph.h"
49 # include "libavfilter/graphparser.h"
50 # include "libavfilter/vsrc_buffer.h"
51 #endif
52
53 #if HAVE_SYS_RESOURCE_H
54 #include <sys/types.h>
55 #include <sys/time.h>
56 #include <sys/resource.h>
57 #elif HAVE_GETPROCESSTIMES
58 #include <windows.h>
59 #endif
60 #if HAVE_GETPROCESSMEMORYINFO
61 #include <windows.h>
62 #include <psapi.h>
63 #endif
64
65 #if HAVE_SYS_SELECT_H
66 #include <sys/select.h>
67 #endif
68
69 #if HAVE_TERMIOS_H
70 #include <fcntl.h>
71 #include <sys/ioctl.h>
72 #include <sys/time.h>
73 #include <termios.h>
74 #elif HAVE_CONIO_H
75 #include <conio.h>
76 #endif
77 #include <time.h>
78
79 #include "cmdutils.h"
80
81 #undef NDEBUG
82 #include <assert.h>
83
84 const char program_name[] = "FFmpeg";
85 const int program_birth_year = 2000;
86
87 /* select an input stream for an output stream */
88 typedef struct AVStreamMap {
89 int file_index;
90 int stream_index;
91 int sync_file_index;
92 int sync_stream_index;
93 } AVStreamMap;
94
95 /** select an input file for an output file */
96 typedef struct AVMetaDataMap {
97 int out_file;
98 int in_file;
99 } AVMetaDataMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104
105 static const char *last_asked_format = NULL;
106 static AVFormatContext *input_files[MAX_FILES];
107 static int64_t input_files_ts_offset[MAX_FILES];
108 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
109 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
110 static int nb_input_files = 0;
111 static int nb_icodecs;
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
115 static int nb_output_files = 0;
116 static int nb_ocodecs;
117
118 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
119 static int nb_stream_maps;
120
121 static AVMetaDataMap meta_data_maps[MAX_FILES];
122 static int nb_meta_data_maps;
123
124 static int frame_width = 0;
125 static int frame_height = 0;
126 static float frame_aspect_ratio = 0;
127 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
128 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
129 static int frame_topBand = 0;
130 static int frame_bottomBand = 0;
131 static int frame_leftBand = 0;
132 static int frame_rightBand = 0;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static int video_codec_tag = 0;
143 static char *video_language = NULL;
144 static int same_quality = 0;
145 static int do_deinterlace = 0;
146 static int top_field_first = -1;
147 static int me_threshold = 0;
148 static int intra_dc_precision = 8;
149 static int loop_input = 0;
150 static int loop_output = AVFMT_NOOUTPUTLOOP;
151 static int qp_hist = 0;
152 #if CONFIG_AVFILTER
153 static char *vfilters = NULL;
154 AVFilterGraph *filt_graph_all = NULL;
155 #endif
156
157 static int intra_only = 0;
158 static int audio_sample_rate = 44100;
159 static int64_t channel_layout = 0;
160 #define QSCALE_NONE -99999
161 static float audio_qscale = QSCALE_NONE;
162 static int audio_disable = 0;
163 static int audio_channels = 1;
164 static char *audio_codec_name = NULL;
165 static int audio_codec_tag = 0;
166 static char *audio_language = NULL;
167
168 static int subtitle_disable = 0;
169 static char *subtitle_codec_name = NULL;
170 static char *subtitle_language = NULL;
171 static int subtitle_codec_tag = 0;
172
173 static float mux_preload= 0.5;
174 static float mux_max_delay= 0.7;
175
176 static int64_t recording_time = INT64_MAX;
177 static int64_t start_time = 0;
178 static int64_t rec_timestamp = 0;
179 static int64_t input_ts_offset = 0;
180 static int file_overwrite = 0;
181 static int metadata_count;
182 static AVMetadataTag *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static char *pass_logfilename_prefix = NULL;
189 static int audio_stream_copy = 0;
190 static int video_stream_copy = 0;
191 static int subtitle_stream_copy = 0;
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 opt_shortest = 0;
197 static int video_global_header = 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 video_channel = 0;
206 static char *video_standard;
207
208 static int audio_volume = 256;
209
210 static int exit_on_error = 0;
211 static int using_stdin = 0;
212 static int verbose = 1;
213 static int thread_count= 1;
214 static int q_pressed = 0;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223
224 static int pgmyuv_compatibility_hack=0;
225 static float dts_delta_threshold = 10;
226
227 static unsigned int sws_flags = SWS_BICUBIC;
228
229 static int64_t timer_start;
230
231 static uint8_t *audio_buf;
232 static uint8_t *audio_out;
233 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
234
235 static short *samples;
236
237 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
239 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
240 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
241
242 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
243
244 struct AVInputStream;
245
246 typedef struct AVOutputStream {
247 int file_index; /* file index */
248 int index; /* stream index in the output file */
249 int source_index; /* AVInputStream index */
250 AVStream *st; /* stream in the output file */
251 int encoding_needed; /* true if encoding needed for this stream */
252 int frame_number;
253 /* input pts and corresponding output pts
254 for A/V sync */
255 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
256 struct AVInputStream *sync_ist; /* input stream to sync against */
257 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
258 /* video only */
259 int video_resample;
260 AVFrame pict_tmp; /* temporary image for resampling */
261 struct SwsContext *img_resample_ctx; /* for image resampling */
262 int resample_height;
263 int resample_width;
264 int resample_pix_fmt;
265
266 /* full frame size of first frame */
267 int original_height;
268 int original_width;
269
270 /* cropping area sizes */
271 int video_crop;
272 int topBand;
273 int bottomBand;
274 int leftBand;
275 int rightBand;
276
277 /* cropping area of first frame */
278 int original_topBand;
279 int original_bottomBand;
280 int original_leftBand;
281 int original_rightBand;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 int reformat_pair;
287 AVAudioConvert *reformat_ctx;
288 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
289 FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293 int file_index;
294 int index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 int64_t sample_index; /* current sample */
299
300 int64_t start; /* time when read started */
301 int64_t next_pts; /* synthetic pts for cases where pkt.pts
302 is not defined */
303 int64_t pts; /* current pts */
304 int is_start; /* is 1 at the start and after a discontinuity */
305 int showed_multi_packet_warning;
306 int is_past_recording_time;
307 #if CONFIG_AVFILTER
308 AVFilterContext *out_video_filter;
309 AVFilterContext *input_video_filter;
310 AVFrame *filter_frame;
311 int has_filter_frame;
312 AVFilterPicRef *picref;
313 #endif
314 } AVInputStream;
315
316 typedef struct AVInputFile {
317 int eof_reached; /* true if eof reached */
318 int ist_index; /* index of first stream in ist_table */
319 int buffer_size; /* current total buffer size */
320 int nb_streams; /* nb streams we are aware of */
321 } AVInputFile;
322
323 #if HAVE_TERMIOS_H
324
325 /* init terminal so that we can grab keys */
326 static struct termios oldtty;
327 #endif
328
329 #if CONFIG_AVFILTER
330 typedef struct {
331 int pix_fmt;
332 } FilterOutPriv;
333
334
335 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
336 {
337 FilterOutPriv *priv = ctx->priv;
338
339 if(!opaque) return -1;
340
341 priv->pix_fmt = *((int *)opaque);
342
343 return 0;
344 }
345
346 static void output_end_frame(AVFilterLink *link)
347 {
348 }
349
350 static int output_query_formats(AVFilterContext *ctx)
351 {
352 FilterOutPriv *priv = ctx->priv;
353 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
354
355 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
356 return 0;
357 }
358
359 static int get_filtered_video_pic(AVFilterContext *ctx,
360 AVFilterPicRef **picref, AVFrame *pic2,
361 uint64_t *pts)
362 {
363 AVFilterPicRef *pic;
364
365 if(avfilter_request_frame(ctx->inputs[0]))
366 return -1;
367 if(!(pic = ctx->inputs[0]->cur_pic))
368 return -1;
369 *picref = pic;
370 ctx->inputs[0]->cur_pic = NULL;
371
372 *pts = pic->pts;
373
374 memcpy(pic2->data, pic->data, sizeof(pic->data));
375 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
376 pic2->interlaced_frame = pic->interlaced;
377 pic2->top_field_first = pic->top_field_first;
378
379 return 1;
380 }
381
382 static AVFilter output_filter =
383 {
384 .name = "ffmpeg_output",
385
386 .priv_size = sizeof(FilterOutPriv),
387 .init = output_init,
388
389 .query_formats = output_query_formats,
390
391 .inputs = (AVFilterPad[]) {{ .name = "default",
392 .type = AVMEDIA_TYPE_VIDEO,
393 .end_frame = output_end_frame,
394 .min_perms = AV_PERM_READ, },
395 { .name = NULL }},
396 .outputs = (AVFilterPad[]) {{ .name = NULL }},
397 };
398
399 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
400 {
401 AVFilterContext *curr_filter;
402 /** filter graph containing all filters including input & output */
403 AVCodecContext *codec = ost->st->codec;
404 AVCodecContext *icodec = ist->st->codec;
405 char args[255];
406
407 filt_graph_all = av_mallocz(sizeof(AVFilterGraph));
408
409 if(!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
410 return -1;
411 if(!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
412 return -1;
413
414 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
415 ist->st->codec->height, ist->st->codec->pix_fmt);
416 if(avfilter_init_filter(ist->input_video_filter, args, NULL))
417 return -1;
418 if(avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
419 return -1;
420
421 /* add input and output filters to the overall graph */
422 avfilter_graph_add_filter(filt_graph_all, ist->input_video_filter);
423 avfilter_graph_add_filter(filt_graph_all, ist->out_video_filter);
424
425 curr_filter = ist->input_video_filter;
426
427 if(ost->video_crop) {
428 char crop_args[255];
429 AVFilterContext *filt_crop;
430 snprintf(crop_args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
431 codec->width,
432 codec->height);
433 filt_crop = avfilter_open(avfilter_get_by_name("crop"), NULL);
434 if (!filt_crop)
435 return -1;
436 if (avfilter_init_filter(filt_crop, crop_args, NULL))
437 return -1;
438 if (avfilter_link(curr_filter, 0, filt_crop, 0))
439 return -1;
440 curr_filter = filt_crop;
441 avfilter_graph_add_filter(filt_graph_all, curr_filter);
442 }
443
444 if((codec->width !=
445 icodec->width - (frame_leftBand + frame_rightBand)) ||
446 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
447 char scale_args[255];
448 AVFilterContext *filt_scale;
449 snprintf(scale_args, 255, "%d:%d:flags=0x%X",
450 codec->width,
451 codec->height,
452 (int)av_get_int(sws_opts, "sws_flags", NULL));
453 filt_scale = avfilter_open(avfilter_get_by_name("scale"), NULL);
454 if (!filt_scale)
455 return -1;
456 if (avfilter_init_filter(filt_scale, scale_args, NULL))
457 return -1;
458 if (avfilter_link(curr_filter, 0, filt_scale, 0))
459 return -1;
460 curr_filter = filt_scale;
461 avfilter_graph_add_filter(filt_graph_all, curr_filter);
462 }
463
464 if(vfilters) {
465 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
466 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
467
468 outputs->name = av_strdup("in");
469 outputs->filter = curr_filter;
470 outputs->pad_idx = 0;
471 outputs->next = NULL;
472
473 inputs->name = av_strdup("out");
474 inputs->filter = ist->out_video_filter;
475 inputs->pad_idx = 0;
476 inputs->next = NULL;
477
478 if (avfilter_graph_parse(filt_graph_all, vfilters, inputs, outputs, NULL) < 0)
479 return -1;
480 av_freep(&vfilters);
481 } else {
482 if(avfilter_link(curr_filter, 0, ist->out_video_filter, 0) < 0)
483 return -1;
484 }
485
486 {
487 char scale_sws_opts[128];
488 snprintf(scale_sws_opts, sizeof(scale_sws_opts), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
489 filt_graph_all->scale_sws_opts = av_strdup(scale_sws_opts);
490 }
491
492 /* configure all the filter links */
493 if(avfilter_graph_check_validity(filt_graph_all, NULL))
494 return -1;
495 if(avfilter_graph_config_formats(filt_graph_all, NULL))
496 return -1;
497 if(avfilter_graph_config_links(filt_graph_all, NULL))
498 return -1;
499
500 codec->width = ist->out_video_filter->inputs[0]->w;
501 codec->height = ist->out_video_filter->inputs[0]->h;
502
503 return 0;
504 }
505 #endif /* CONFIG_AVFILTER */
506
507 static void term_exit(void)
508 {
509 #if HAVE_TERMIOS_H
510 tcsetattr (0, TCSANOW, &oldtty);
511 #endif
512 }
513
514 static volatile int received_sigterm = 0;
515
516 static void
517 sigterm_handler(int sig)
518 {
519 received_sigterm = sig;
520 term_exit();
521 }
522
523 static void term_init(void)
524 {
525 #if HAVE_TERMIOS_H
526 struct termios tty;
527
528 tcgetattr (0, &tty);
529 oldtty = tty;
530 atexit(term_exit);
531
532 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
533 |INLCR|IGNCR|ICRNL|IXON);
534 tty.c_oflag |= OPOST;
535 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
536 tty.c_cflag &= ~(CSIZE|PARENB);
537 tty.c_cflag |= CS8;
538 tty.c_cc[VMIN] = 1;
539 tty.c_cc[VTIME] = 0;
540
541 tcsetattr (0, TCSANOW, &tty);
542 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
543 #endif
544
545 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
546 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
547 #ifdef SIGXCPU
548 signal(SIGXCPU, sigterm_handler);
549 #endif
550
551 #if CONFIG_BEOS_NETSERVER
552 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
553 #endif
554 }
555
556 /* read a key without blocking */
557 static int read_key(void)
558 {
559 #if HAVE_TERMIOS_H
560 int n = 1;
561 unsigned char ch;
562 #if !CONFIG_BEOS_NETSERVER
563 struct timeval tv;
564 fd_set rfds;
565
566 FD_ZERO(&rfds);
567 FD_SET(0, &rfds);
568 tv.tv_sec = 0;
569 tv.tv_usec = 0;
570 n = select(1, &rfds, NULL, NULL, &tv);
571 #endif
572 if (n > 0) {
573 n = read(0, &ch, 1);
574 if (n == 1)
575 return ch;
576
577 return n;
578 }
579 #elif HAVE_CONIO_H
580 if(kbhit())
581 return(getch());
582 #endif
583 return -1;
584 }
585
586 static int decode_interrupt_cb(void)
587 {
588 return q_pressed || (q_pressed = read_key() == 'q');
589 }
590
591 static int av_exit(int ret)
592 {
593 int i;
594
595 /* close files */
596 for(i=0;i<nb_output_files;i++) {
597 /* maybe av_close_output_file ??? */
598 AVFormatContext *s = output_files[i];
599 int j;
600 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
601 url_fclose(s->pb);
602 for(j=0;j<s->nb_streams;j++) {
603 av_metadata_free(&s->streams[j]->metadata);
604 av_free(s->streams[j]->codec);
605 av_free(s->streams[j]);
606 }
607 for(j=0;j<s->nb_programs;j++) {
608 av_metadata_free(&s->programs[j]->metadata);
609 }
610 for(j=0;j<s->nb_chapters;j++) {
611 av_metadata_free(&s->chapters[j]->metadata);
612 }
613 av_metadata_free(&s->metadata);
614 av_free(s);
615 }
616 for(i=0;i<nb_input_files;i++)
617 av_close_input_file(input_files[i]);
618
619 av_free(intra_matrix);
620 av_free(inter_matrix);
621
622 if (vstats_file)
623 fclose(vstats_file);
624 av_free(vstats_filename);
625
626 av_free(opt_names);
627
628 av_free(video_codec_name);
629 av_free(audio_codec_name);
630 av_free(subtitle_codec_name);
631
632 av_free(video_standard);
633
634 #if CONFIG_POWERPC_PERF
635 void powerpc_display_perf_report(void);
636 powerpc_display_perf_report();
637 #endif /* CONFIG_POWERPC_PERF */
638
639 for (i=0;i<AVMEDIA_TYPE_NB;i++)
640 av_free(avcodec_opts[i]);
641 av_free(avformat_opts);
642 av_free(sws_opts);
643 av_free(audio_buf);
644 av_free(audio_out);
645 allocated_audio_buf_size= allocated_audio_out_size= 0;
646 av_free(samples);
647
648 #if CONFIG_AVFILTER
649 avfilter_uninit();
650 #endif
651
652 if (received_sigterm) {
653 fprintf(stderr,
654 "Received signal %d: terminating.\n",
655 (int) received_sigterm);
656 exit (255);
657 }
658
659 exit(ret); /* not all OS-es handle main() return value */
660 return ret;
661 }
662
663 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
664 {
665 if(codec && codec->sample_fmts){
666 const enum SampleFormat *p= codec->sample_fmts;
667 for(; *p!=-1; p++){
668 if(*p == st->codec->sample_fmt)
669 break;
670 }
671 if(*p == -1)
672 st->codec->sample_fmt = codec->sample_fmts[0];
673 }
674 }
675
676 static void choose_sample_rate(AVStream *st, AVCodec *codec)
677 {
678 if(codec && codec->supported_samplerates){
679 const int *p= codec->supported_samplerates;
680 int best;
681 int best_dist=INT_MAX;
682 for(; *p; p++){
683 int dist= abs(st->codec->sample_rate - *p);
684 if(dist < best_dist){
685 best_dist= dist;
686 best= *p;
687 }
688 }
689 if(best_dist){
690 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
691 }
692 st->codec->sample_rate= best;
693 }
694 }
695
696 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
697 {
698 if(codec && codec->pix_fmts){
699 const enum PixelFormat *p= codec->pix_fmts;
700 for(; *p!=-1; p++){
701 if(*p == st->codec->pix_fmt)
702 break;
703 }
704 if(*p == -1
705 && !( st->codec->codec_id==CODEC_ID_MJPEG
706 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
707 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
708 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
709 st->codec->pix_fmt = codec->pix_fmts[0];
710 }
711 }
712
713 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
714 {
715 int i, err;
716 AVFormatContext *ic;
717 int nopts = 0;
718
719 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
720 if (err < 0)
721 return err;
722 /* copy stream format */
723 s->nb_streams = ic->nb_streams;
724 for(i=0;i<ic->nb_streams;i++) {
725 AVStream *st;
726 AVCodec *codec;
727
728 // FIXME: a more elegant solution is needed
729 st = av_mallocz(sizeof(AVStream));
730 memcpy(st, ic->streams[i], sizeof(AVStream));
731 st->codec = avcodec_alloc_context();
732 if (!st->codec) {
733 print_error(filename, AVERROR(ENOMEM));
734 av_exit(1);
735 }
736 avcodec_copy_context(st->codec, ic->streams[i]->codec);
737 s->streams[i] = st;
738
739 codec = avcodec_find_encoder(st->codec->codec_id);
740 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
741 if (audio_stream_copy) {
742 st->stream_copy = 1;
743 } else
744 choose_sample_fmt(st, codec);
745 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
746 if (video_stream_copy) {
747 st->stream_copy = 1;
748 } else
749 choose_pixel_fmt(st, codec);
750 }
751
752 if(!st->codec->thread_count)
753 st->codec->thread_count = 1;
754 if(st->codec->thread_count>1)
755 avcodec_thread_init(st->codec, st->codec->thread_count);
756
757 if(st->codec->flags & CODEC_FLAG_BITEXACT)
758 nopts = 1;
759 }
760
761 if (!nopts)
762 s->timestamp = av_gettime();
763
764 av_close_input_file(ic);
765 return 0;
766 }
767
768 static double
769 get_sync_ipts(const AVOutputStream *ost)
770 {
771 const AVInputStream *ist = ost->sync_ist;
772 return (double)(ist->pts - start_time)/AV_TIME_BASE;
773 }
774
775 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
776 int ret;
777
778 while(bsfc){
779 AVPacket new_pkt= *pkt;
780 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
781 &new_pkt.data, &new_pkt.size,
782 pkt->data, pkt->size,
783 pkt->flags & AV_PKT_FLAG_KEY);
784 if(a>0){
785 av_free_packet(pkt);
786 new_pkt.destruct= av_destruct_packet;
787 } else if(a<0){
788 fprintf(stderr, "%s failed for stream %d, codec %s",
789 bsfc->filter->name, pkt->stream_index,
790 avctx->codec ? avctx->codec->name : "copy");
791 print_error("", a);
792 if (exit_on_error)
793 av_exit(1);
794 }
795 *pkt= new_pkt;
796
797 bsfc= bsfc->next;
798 }
799
800 ret= av_interleaved_write_frame(s, pkt);
801 if(ret < 0){
802 print_error("av_interleaved_write_frame()", ret);
803 av_exit(1);
804 }
805 }
806
807 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
808
809 static void do_audio_out(AVFormatContext *s,
810 AVOutputStream *ost,
811 AVInputStream *ist,
812 unsigned char *buf, int size)
813 {
814 uint8_t *buftmp;
815 int64_t audio_out_size, audio_buf_size;
816 int64_t allocated_for_size= size;
817
818 int size_out, frame_bytes, ret;
819 AVCodecContext *enc= ost->st->codec;
820 AVCodecContext *dec= ist->st->codec;
821 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
822 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
823 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
824
825 need_realloc:
826 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
827 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
828 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
829 audio_buf_size*= osize*enc->channels;
830
831 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
832 if(coded_bps > 8*osize)
833 audio_out_size= audio_out_size * coded_bps / (8*osize);
834 audio_out_size += FF_MIN_BUFFER_SIZE;
835
836 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
837 fprintf(stderr, "Buffer sizes too large\n");
838 av_exit(1);
839 }
840
841 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
842 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
843 if (!audio_buf || !audio_out){
844 fprintf(stderr, "Out of memory in do_audio_out\n");
845 av_exit(1);
846 }
847
848 if (enc->channels != dec->channels)
849 ost->audio_resample = 1;
850
851 if (ost->audio_resample && !ost->resample) {
852 if (dec->sample_fmt != SAMPLE_FMT_S16)
853 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
854 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
855 enc->sample_rate, dec->sample_rate,
856 enc->sample_fmt, dec->sample_fmt,
857 16, 10, 0, 0.8);
858 if (!ost->resample) {
859 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
860 dec->channels, dec->sample_rate,
861 enc->channels, enc->sample_rate);
862 av_exit(1);
863 }
864 }
865
866 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
867 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
868 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
869 if (ost->reformat_ctx)
870 av_audio_convert_free(ost->reformat_ctx);
871 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
872 dec->sample_fmt, 1, NULL, 0);
873 if (!ost->reformat_ctx) {
874 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
875 avcodec_get_sample_fmt_name(dec->sample_fmt),
876 avcodec_get_sample_fmt_name(enc->sample_fmt));
877 av_exit(1);
878 }
879 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
880 }
881
882 if(audio_sync_method){
883 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
884 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
885 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
886 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
887
888 //FIXME resample delay
889 if(fabs(delta) > 50){
890 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
891 if(byte_delta < 0){
892 byte_delta= FFMAX(byte_delta, -size);
893 size += byte_delta;
894 buf -= byte_delta;
895 if(verbose > 2)
896 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
897 if(!size)
898 return;
899 ist->is_start=0;
900 }else{
901 static uint8_t *input_tmp= NULL;
902 input_tmp= av_realloc(input_tmp, byte_delta + size);
903
904 if(byte_delta > allocated_for_size - size){
905 allocated_for_size= byte_delta + (int64_t)size;
906 goto need_realloc;
907 }
908 ist->is_start=0;
909
910 memset(input_tmp, 0, byte_delta);
911 memcpy(input_tmp + byte_delta, buf, size);
912 buf= input_tmp;
913 size += byte_delta;
914 if(verbose > 2)
915 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
916 }
917 }else if(audio_sync_method>1){
918 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
919 assert(ost->audio_resample);
920 if(verbose > 2)
921 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
922 // 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));
923 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
924 }
925 }
926 }else
927 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
928 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
929
930 if (ost->audio_resample) {
931 buftmp = audio_buf;
932 size_out = audio_resample(ost->resample,
933 (short *)buftmp, (short *)buf,
934 size / (ist->st->codec->channels * isize));
935 size_out = size_out * enc->channels * osize;
936 } else {
937 buftmp = buf;
938 size_out = size;
939 }
940
941 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
942 const void *ibuf[6]= {buftmp};
943 void *obuf[6]= {audio_buf};
944 int istride[6]= {isize};
945 int ostride[6]= {osize};
946 int len= size_out/istride[0];
947 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
948 printf("av_audio_convert() failed\n");
949 if (exit_on_error)
950 av_exit(1);
951 return;
952 }
953 buftmp = audio_buf;
954 size_out = len*osize;
955 }
956
957 /* now encode as many frames as possible */
958 if (enc->frame_size > 1) {
959 /* output resampled raw samples */
960 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
961 fprintf(stderr, "av_fifo_realloc2() failed\n");
962 av_exit(1);
963 }
964 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
965
966 frame_bytes = enc->frame_size * osize * enc->channels;
967
968 while (av_fifo_size(ost->fifo) >= frame_bytes) {
969 AVPacket pkt;
970 av_init_packet(&pkt);
971
972 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
973
974 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
975
976 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
977 (short *)audio_buf);
978 if (ret < 0) {
979 fprintf(stderr, "Audio encoding failed\n");
980 av_exit(1);
981 }
982 audio_size += ret;
983 pkt.stream_index= ost->index;
984 pkt.data= audio_out;
985 pkt.size= ret;
986 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
987 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
988 pkt.flags |= AV_PKT_FLAG_KEY;
989 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
990
991 ost->sync_opts += enc->frame_size;
992 }
993 } else {
994 AVPacket pkt;
995 av_init_packet(&pkt);
996
997 ost->sync_opts += size_out / (osize * enc->channels);
998
999 /* output a pcm frame */
1000 /* determine the size of the coded buffer */
1001 size_out /= osize;
1002 if (coded_bps)
1003 size_out = size_out*coded_bps/8;
1004
1005 if(size_out > audio_out_size){
1006 fprintf(stderr, "Internal error, buffer size too small\n");
1007 av_exit(1);
1008 }
1009
1010 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1011 ret = avcodec_encode_audio(enc, audio_out, size_out,
1012 (short *)buftmp);
1013 if (ret < 0) {
1014 fprintf(stderr, "Audio encoding failed\n");
1015 av_exit(1);
1016 }
1017 audio_size += ret;
1018 pkt.stream_index= ost->index;
1019 pkt.data= audio_out;
1020 pkt.size= ret;
1021 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1022 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1023 pkt.flags |= AV_PKT_FLAG_KEY;
1024 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1025 }
1026 }
1027
1028 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1029 {
1030 AVCodecContext *dec;
1031 AVPicture *picture2;
1032 AVPicture picture_tmp;
1033 uint8_t *buf = 0;
1034
1035 dec = ist->st->codec;
1036
1037 /* deinterlace : must be done before any resize */
1038 if (do_deinterlace) {
1039 int size;
1040
1041 /* create temporary picture */
1042 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1043 buf = av_malloc(size);
1044 if (!buf)
1045 return;
1046
1047 picture2 = &picture_tmp;
1048 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1049
1050 if(avpicture_deinterlace(picture2, picture,
1051 dec->pix_fmt, dec->width, dec->height) < 0) {
1052 /* if error, do not deinterlace */
1053 fprintf(stderr, "Deinterlacing failed\n");
1054 av_free(buf);
1055 buf = NULL;
1056 picture2 = picture;
1057 }
1058 } else {
1059 picture2 = picture;
1060 }
1061
1062 if (picture != picture2)
1063 *picture = *picture2;
1064 *bufp = buf;
1065 }
1066
1067 /* we begin to correct av delay at this threshold */
1068 #define AV_DELAY_MAX 0.100
1069
1070 static void do_subtitle_out(AVFormatContext *s,
1071 AVOutputStream *ost,
1072 AVInputStream *ist,
1073 AVSubtitle *sub,
1074 int64_t pts)
1075 {
1076 static uint8_t *subtitle_out = NULL;
1077 int subtitle_out_max_size = 1024 * 1024;
1078 int subtitle_out_size, nb, i;
1079 AVCodecContext *enc;
1080 AVPacket pkt;
1081
1082 if (pts == AV_NOPTS_VALUE) {
1083 fprintf(stderr, "Subtitle packets must have a pts\n");
1084 if (exit_on_error)
1085 av_exit(1);
1086 return;
1087 }
1088
1089 enc = ost->st->codec;
1090
1091 if (!subtitle_out) {
1092 subtitle_out = av_malloc(subtitle_out_max_size);
1093 }
1094
1095 /* Note: DVB subtitle need one packet to draw them and one other
1096 packet to clear them */
1097 /* XXX: signal it in the codec context ? */
1098 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1099 nb = 2;
1100 else
1101 nb = 1;
1102
1103 for(i = 0; i < nb; i++) {
1104 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1105 // start_display_time is required to be 0
1106 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1107 sub->end_display_time -= sub->start_display_time;
1108 sub->start_display_time = 0;
1109 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1110 subtitle_out_max_size, sub);
1111 if (subtitle_out_size < 0) {
1112 fprintf(stderr, "Subtitle encoding failed\n");
1113 av_exit(1);
1114 }
1115
1116 av_init_packet(&pkt);
1117 pkt.stream_index = ost->index;
1118 pkt.data = subtitle_out;
1119 pkt.size = subtitle_out_size;
1120 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1121 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1122 /* XXX: the pts correction is handled here. Maybe handling
1123 it in the codec would be better */
1124 if (i == 0)
1125 pkt.pts += 90 * sub->start_display_time;
1126 else
1127 pkt.pts += 90 * sub->end_display_time;
1128 }
1129 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1130 }
1131 }
1132
1133 static int bit_buffer_size= 1024*256;
1134 static uint8_t *bit_buffer= NULL;
1135
1136 static void do_video_out(AVFormatContext *s,
1137 AVOutputStream *ost,
1138 AVInputStream *ist,
1139 AVFrame *in_picture,
1140 int *frame_size)
1141 {
1142 int nb_frames, i, ret;
1143 #if !CONFIG_AVFILTER
1144 int64_t topBand, bottomBand, leftBand, rightBand;
1145 #endif
1146 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1147 AVFrame picture_crop_temp, picture_pad_temp;
1148 AVCodecContext *enc, *dec;
1149 double sync_ipts;
1150
1151 avcodec_get_frame_defaults(&picture_crop_temp);
1152 avcodec_get_frame_defaults(&picture_pad_temp);
1153
1154 enc = ost->st->codec;
1155 dec = ist->st->codec;
1156
1157 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1158
1159 /* by default, we output a single frame */
1160 nb_frames = 1;
1161
1162 *frame_size = 0;
1163
1164 if(video_sync_method){
1165 double vdelta = sync_ipts - ost->sync_opts;
1166 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1167 if (vdelta < -1.1)
1168 nb_frames = 0;
1169 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1170 if(vdelta<=-0.6){
1171 nb_frames=0;
1172 }else if(vdelta>0.6)
1173 ost->sync_opts= lrintf(sync_ipts);
1174 }else if (vdelta > 1.1)
1175 nb_frames = lrintf(vdelta);
1176 //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);
1177 if (nb_frames == 0){
1178 ++nb_frames_drop;
1179 if (verbose>2)
1180 fprintf(stderr, "*** drop!\n");
1181 }else if (nb_frames > 1) {
1182 nb_frames_dup += nb_frames - 1;
1183 if (verbose>2)
1184 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1185 }
1186 }else
1187 ost->sync_opts= lrintf(sync_ipts);
1188
1189 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1190 if (nb_frames <= 0)
1191 return;
1192
1193 #if CONFIG_AVFILTER
1194 formatted_picture = in_picture;
1195 #else
1196 if (ost->video_crop) {
1197 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1198 fprintf(stderr, "error cropping picture\n");
1199 if (exit_on_error)
1200 av_exit(1);
1201 return;
1202 }
1203 formatted_picture = &picture_crop_temp;
1204 } else {
1205 formatted_picture = in_picture;
1206 }
1207 #endif
1208
1209 final_picture = formatted_picture;
1210 padding_src = formatted_picture;
1211 resampling_dst = &ost->pict_tmp;
1212
1213 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1214 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1215 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1216
1217 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1218 if(!ost->video_resample)
1219 av_exit(1);
1220 }
1221
1222 #if !CONFIG_AVFILTER
1223 if (ost->video_resample) {
1224 padding_src = NULL;
1225 final_picture = &ost->pict_tmp;
1226 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1227 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1228 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1229
1230 /* keep bands proportional to the frame size */
1231 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1232 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1233 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1234 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1235
1236 /* sanity check to ensure no bad band sizes sneak in */
1237 assert(topBand <= INT_MAX && topBand >= 0);
1238 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1239 assert(leftBand <= INT_MAX && leftBand >= 0);
1240 assert(rightBand <= INT_MAX && rightBand >= 0);
1241
1242 ost->topBand = topBand;
1243 ost->bottomBand = bottomBand;
1244 ost->leftBand = leftBand;
1245 ost->rightBand = rightBand;
1246
1247 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1248 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1249 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1250
1251 /* initialize a new scaler context */
1252 sws_freeContext(ost->img_resample_ctx);
1253 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1254 ost->img_resample_ctx = sws_getContext(
1255 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1256 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1257 ist->st->codec->pix_fmt,
1258 ost->st->codec->width,
1259 ost->st->codec->height,
1260 ost->st->codec->pix_fmt,
1261 sws_flags, NULL, NULL, NULL);
1262 if (ost->img_resample_ctx == NULL) {
1263 fprintf(stderr, "Cannot get resampling context\n");
1264 av_exit(1);
1265 }
1266 }
1267 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1268 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1269 }
1270 #endif
1271
1272 /* duplicates frame if needed */
1273 for(i=0;i<nb_frames;i++) {
1274 AVPacket pkt;
1275 av_init_packet(&pkt);
1276 pkt.stream_index= ost->index;
1277
1278 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1279 /* raw pictures are written as AVPicture structure to
1280 avoid any copies. We support temorarily the older
1281 method. */
1282 AVFrame* old_frame = enc->coded_frame;
1283 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1284 pkt.data= (uint8_t *)final_picture;
1285 pkt.size= sizeof(AVPicture);
1286 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1287 pkt.flags |= AV_PKT_FLAG_KEY;
1288
1289 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1290 enc->coded_frame = old_frame;
1291 } else {
1292 AVFrame big_picture;
1293
1294 big_picture= *final_picture;
1295 /* better than nothing: use input picture interlaced
1296 settings */
1297 big_picture.interlaced_frame = in_picture->interlaced_frame;
1298 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1299 if(top_field_first == -1)
1300 big_picture.top_field_first = in_picture->top_field_first;
1301 else
1302 big_picture.top_field_first = top_field_first;
1303 }
1304
1305 /* handles sameq here. This is not correct because it may
1306 not be a global option */
1307 if (same_quality) {
1308 big_picture.quality = ist->st->quality;
1309 }else
1310 big_picture.quality = ost->st->quality;
1311 if(!me_threshold)
1312 big_picture.pict_type = 0;
1313 // big_picture.pts = AV_NOPTS_VALUE;
1314 big_picture.pts= ost->sync_opts;
1315 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1316 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1317 ret = avcodec_encode_video(enc,
1318 bit_buffer, bit_buffer_size,
1319 &big_picture);
1320 if (ret < 0) {
1321 fprintf(stderr, "Video encoding failed\n");
1322 av_exit(1);
1323 }
1324
1325 if(ret>0){
1326 pkt.data= bit_buffer;
1327 pkt.size= ret;
1328 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1329 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1330 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1331 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1332 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1333
1334 if(enc->coded_frame->key_frame)
1335 pkt.flags |= AV_PKT_FLAG_KEY;
1336 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1337 *frame_size = ret;
1338 video_size += ret;
1339 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1340 // enc->frame_number-1, ret, enc->pict_type);
1341 /* if two pass, output log */
1342 if (ost->logfile && enc->stats_out) {
1343 fprintf(ost->logfile, "%s", enc->stats_out);
1344 }
1345 }
1346 }
1347 ost->sync_opts++;
1348 ost->frame_number++;
1349 }
1350 }
1351
1352 static double psnr(double d){
1353 return -10.0*log(d)/log(10.0);
1354 }
1355
1356 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1357 int frame_size)
1358 {
1359 AVCodecContext *enc;
1360 int frame_number;
1361 double ti1, bitrate, avg_bitrate;
1362
1363 /* this is executed just the first time do_video_stats is called */
1364 if (!vstats_file) {
1365 vstats_file = fopen(vstats_filename, "w");
1366 if (!vstats_file) {
1367 perror("fopen");
1368 av_exit(1);
1369 }
1370 }
1371
1372 enc = ost->st->codec;
1373 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1374 frame_number = ost->frame_number;
1375 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1376 if (enc->flags&CODEC_FLAG_PSNR)
1377 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1378
1379 fprintf(vstats_file,"f_size= %6d ", frame_size);
1380 /* compute pts value */
1381 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1382 if (ti1 < 0.01)
1383 ti1 = 0.01;
1384
1385 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1386 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1387 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1388 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1389 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1390 }
1391 }
1392
1393 static void print_report(AVFormatContext **output_files,
1394 AVOutputStream **ost_table, int nb_ostreams,
1395 int is_last_report)
1396 {
1397 char buf[1024];
1398 AVOutputStream *ost;
1399 AVFormatContext *oc;
1400 int64_t total_size;
1401 AVCodecContext *enc;
1402 int frame_number, vid, i;
1403 double bitrate, ti1, pts;
1404 static int64_t last_time = -1;
1405 static int qp_histogram[52];
1406
1407 if (!is_last_report) {
1408 int64_t cur_time;
1409 /* display the report every 0.5 seconds */
1410 cur_time = av_gettime();
1411 if (last_time == -1) {
1412 last_time = cur_time;
1413 return;
1414 }
1415 if ((cur_time - last_time) < 500000)
1416 return;
1417 last_time = cur_time;
1418 }
1419
1420
1421 oc = output_files[0];
1422
1423 total_size = url_fsize(oc->pb);
1424 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1425 total_size= url_ftell(oc->pb);
1426
1427 buf[0] = '\0';
1428 ti1 = 1e10;
1429 vid = 0;
1430 for(i=0;i<nb_ostreams;i++) {
1431 ost = ost_table[i];
1432 enc = ost->st->codec;
1433 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1434 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1435 !ost->st->stream_copy ?
1436 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1437 }
1438 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1439 float t = (av_gettime()-timer_start) / 1000000.0;
1440
1441 frame_number = ost->frame_number;
1442 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1443 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1444 !ost->st->stream_copy ?
1445 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1446 if(is_last_report)
1447 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1448 if(qp_hist){
1449 int j;
1450 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1451 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1452 qp_histogram[qp]++;
1453 for(j=0; j<32; j++)
1454 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1455 }
1456 if (enc->flags&CODEC_FLAG_PSNR){
1457 int j;
1458 double error, error_sum=0;
1459 double scale, scale_sum=0;
1460 char type[3]= {'Y','U','V'};
1461 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1462 for(j=0; j<3; j++){
1463 if(is_last_report){
1464 error= enc->error[j];
1465 scale= enc->width*enc->height*255.0*255.0*frame_number;
1466 }else{
1467 error= enc->coded_frame->error[j];
1468 scale= enc->width*enc->height*255.0*255.0;
1469 }
1470 if(j) scale/=4;
1471 error_sum += error;
1472 scale_sum += scale;
1473 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1474 }
1475 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1476 }
1477 vid = 1;
1478 }
1479 /* compute min output value */
1480 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1481 if ((pts < ti1) && (pts > 0))
1482 ti1 = pts;
1483 }
1484 if (ti1 < 0.01)
1485 ti1 = 0.01;
1486
1487 if (verbose || is_last_report) {
1488 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1489
1490 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1491 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1492 (double)total_size / 1024, ti1, bitrate);
1493
1494 if (nb_frames_dup || nb_frames_drop)
1495 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1496 nb_frames_dup, nb_frames_drop);
1497
1498 if (verbose >= 0)
1499 fprintf(stderr, "%s \r", buf);
1500
1501 fflush(stderr);
1502 }
1503
1504 if (is_last_report && verbose >= 0){
1505 int64_t raw= audio_size + video_size + extra_size;
1506 fprintf(stderr, "\n");
1507 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1508 video_size/1024.0,
1509 audio_size/1024.0,
1510 extra_size/1024.0,
1511 100.0*(total_size - raw)/raw
1512 );
1513 }
1514 }
1515
1516 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1517 static int output_packet(AVInputStream *ist, int ist_index,
1518 AVOutputStream **ost_table, int nb_ostreams,
1519 const AVPacket *pkt)
1520 {
1521 AVFormatContext *os;
1522 AVOutputStream *ost;
1523 int ret, i;
1524 int got_picture;
1525 AVFrame picture;
1526 void *buffer_to_free;
1527 static unsigned int samples_size= 0;
1528 AVSubtitle subtitle, *subtitle_to_free;
1529 int got_subtitle;
1530 #if CONFIG_AVFILTER
1531 int loop;
1532 #endif
1533
1534 AVPacket avpkt;
1535 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1536
1537 if(ist->next_pts == AV_NOPTS_VALUE)
1538 ist->next_pts= ist->pts;
1539
1540 if (pkt == NULL) {
1541 /* EOF handling */
1542 av_init_packet(&avpkt);
1543 avpkt.data = NULL;
1544 avpkt.size = 0;
1545 goto handle_eof;
1546 } else {
1547 avpkt = *pkt;
1548 }
1549
1550 if(pkt->dts != AV_NOPTS_VALUE)
1551 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1552
1553 //while we have more to decode or while the decoder did output something on EOF
1554 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1555 uint8_t *data_buf, *decoded_data_buf;
1556 int data_size, decoded_data_size;
1557 handle_eof:
1558 ist->pts= ist->next_pts;
1559
1560 if(avpkt.size && avpkt.size != pkt->size &&
1561 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1562 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1563 ist->showed_multi_packet_warning=1;
1564 }
1565
1566 /* decode the packet if needed */
1567 decoded_data_buf = NULL; /* fail safe */
1568 decoded_data_size= 0;
1569 data_buf = avpkt.data;
1570 data_size = avpkt.size;
1571 subtitle_to_free = NULL;
1572 if (ist->decoding_needed) {
1573 switch(ist->st->codec->codec_type) {
1574 case AVMEDIA_TYPE_AUDIO:{
1575 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1576 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1577 av_free(samples);
1578 samples= av_malloc(samples_size);
1579 }
1580 decoded_data_size= samples_size;
1581 /* XXX: could avoid copy if PCM 16 bits with same
1582 endianness as CPU */
1583 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1584 &avpkt);
1585 if (ret < 0)
1586 goto fail_decode;
1587 avpkt.data += ret;
1588 avpkt.size -= ret;
1589 data_size = ret;
1590 /* Some bug in mpeg audio decoder gives */
1591 /* decoded_data_size < 0, it seems they are overflows */
1592 if (decoded_data_size <= 0) {
1593 /* no audio frame */
1594 continue;
1595 }
1596 decoded_data_buf = (uint8_t *)samples;
1597 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1598 (ist->st->codec->sample_rate * ist->st->codec->channels);
1599 break;}
1600 case AVMEDIA_TYPE_VIDEO:
1601 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1602 /* XXX: allocate picture correctly */
1603 avcodec_get_frame_defaults(&picture);
1604
1605 ret = avcodec_decode_video2(ist->st->codec,
1606 &picture, &got_picture, &avpkt);
1607 ist->st->quality= picture.quality;
1608 if (ret < 0)
1609 goto fail_decode;
1610 if (!got_picture) {
1611 /* no picture yet */
1612 goto discard_packet;
1613 }
1614 if (ist->st->codec->time_base.num != 0) {
1615 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1616 ist->next_pts += ((int64_t)AV_TIME_BASE *
1617 ist->st->codec->time_base.num * ticks) /
1618 ist->st->codec->time_base.den;
1619 }
1620 avpkt.size = 0;
1621 break;
1622 case AVMEDIA_TYPE_SUBTITLE:
1623 ret = avcodec_decode_subtitle2(ist->st->codec,
1624 &subtitle, &got_subtitle, &avpkt);
1625 if (ret < 0)
1626 goto fail_decode;
1627 if (!got_subtitle) {
1628 goto discard_packet;
1629 }
1630 subtitle_to_free = &subtitle;
1631 avpkt.size = 0;
1632 break;
1633 default:
1634 goto fail_decode;
1635 }
1636 } else {
1637 switch(ist->st->codec->codec_type) {
1638 case AVMEDIA_TYPE_AUDIO:
1639 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1640 ist->st->codec->sample_rate;
1641 break;
1642 case AVMEDIA_TYPE_VIDEO:
1643 if (ist->st->codec->time_base.num != 0) {
1644 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1645 ist->next_pts += ((int64_t)AV_TIME_BASE *
1646 ist->st->codec->time_base.num * ticks) /
1647 ist->st->codec->time_base.den;
1648 }
1649 break;
1650 }
1651 ret = avpkt.size;
1652 avpkt.size = 0;
1653 }
1654
1655 buffer_to_free = NULL;
1656 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1657 pre_process_video_frame(ist, (AVPicture *)&picture,
1658 &buffer_to_free);
1659 }
1660
1661 #if CONFIG_AVFILTER
1662 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1663 // add it to be filtered
1664 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1665 ist->pts,
1666 ist->st->codec->sample_aspect_ratio);
1667 }
1668 #endif
1669
1670 // preprocess audio (volume)
1671 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1672 if (audio_volume != 256) {
1673 short *volp;
1674 volp = samples;
1675 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1676 int v = ((*volp) * audio_volume + 128) >> 8;
1677 if (v < -32768) v = -32768;
1678 if (v > 32767) v = 32767;
1679 *volp++ = v;
1680 }
1681 }
1682 }
1683
1684 /* frame rate emulation */
1685 if (rate_emu) {
1686 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1687 int64_t now = av_gettime() - ist->start;
1688 if (pts > now)
1689 usleep(pts - now);
1690 }
1691 #if CONFIG_AVFILTER
1692 loop = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1693 !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1694 #endif
1695 /* if output time reached then transcode raw format,
1696 encode packets and output them */
1697 if (start_time == 0 || ist->pts >= start_time)
1698 #if CONFIG_AVFILTER
1699 while(loop) {
1700 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1701 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1702 #endif
1703 for(i=0;i<nb_ostreams;i++) {
1704 int frame_size;
1705
1706 ost = ost_table[i];
1707 if (ost->source_index == ist_index) {
1708 os = output_files[ost->file_index];
1709
1710 /* set the input output pts pairs */
1711 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1712
1713 if (ost->encoding_needed) {
1714 assert(ist->decoding_needed);
1715 switch(ost->st->codec->codec_type) {
1716 case AVMEDIA_TYPE_AUDIO:
1717 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1718 break;
1719 case AVMEDIA_TYPE_VIDEO:
1720 #if CONFIG_AVFILTER
1721 ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1722 #endif
1723 do_video_out(os, ost, ist, &picture, &frame_size);
1724 if (vstats_filename && frame_size)
1725 do_video_stats(os, ost, frame_size);
1726 break;
1727 case AVMEDIA_TYPE_SUBTITLE:
1728 do_subtitle_out(os, ost, ist, &subtitle,
1729 pkt->pts);
1730 break;
1731 default:
1732 abort();
1733 }
1734 } else {
1735 AVFrame avframe; //FIXME/XXX remove this
1736 AVPacket opkt;
1737 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1738
1739 av_init_packet(&opkt);
1740
1741 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1742 continue;
1743
1744 /* no reencoding needed : output the packet directly */
1745 /* force the input stream PTS */
1746
1747 avcodec_get_frame_defaults(&avframe);
1748 ost->st->codec->coded_frame= &avframe;
1749 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1750
1751 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1752 audio_size += data_size;
1753 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1754 video_size += data_size;
1755 ost->sync_opts++;
1756 }
1757
1758 opkt.stream_index= ost->index;
1759 if(pkt->pts != AV_NOPTS_VALUE)
1760 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1761 else
1762 opkt.pts= AV_NOPTS_VALUE;
1763
1764 if (pkt->dts == AV_NOPTS_VALUE)
1765 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1766 else
1767 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1768 opkt.dts -= ost_tb_start_time;
1769
1770 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1771 opkt.flags= pkt->flags;
1772
1773 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1774 if( ost->st->codec->codec_id != CODEC_ID_H264
1775 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1776 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1777 ) {
1778 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1779 opkt.destruct= av_destruct_packet;
1780 } else {
1781 opkt.data = data_buf;
1782 opkt.size = data_size;
1783 }
1784
1785 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1786 ost->st->codec->frame_number++;
1787 ost->frame_number++;
1788 av_free_packet(&opkt);
1789 }
1790 }
1791 #if CONFIG_AVFILTER
1792 loop = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1793 ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1794 #endif
1795 }
1796
1797 #if CONFIG_AVFILTER
1798 if(ist->picref)
1799 avfilter_unref_pic(ist->picref);
1800 }
1801 #endif
1802 av_free(buffer_to_free);
1803 /* XXX: allocate the subtitles in the codec ? */
1804 if (subtitle_to_free) {
1805 if (subtitle_to_free->rects != NULL) {
1806 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1807 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1808 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1809 av_freep(&subtitle_to_free->rects[i]);
1810 }
1811 av_freep(&subtitle_to_free->rects);
1812 }
1813 subtitle_to_free->num_rects = 0;
1814 subtitle_to_free = NULL;
1815 }
1816 }
1817 discard_packet:
1818 if (pkt == NULL) {
1819 /* EOF handling */
1820
1821 for(i=0;i<nb_ostreams;i++) {
1822 ost = ost_table[i];
1823 if (ost->source_index == ist_index) {
1824 AVCodecContext *enc= ost->st->codec;
1825 os = output_files[ost->file_index];
1826
1827 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1828 continue;
1829 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1830 continue;
1831
1832 if (ost->encoding_needed) {
1833 for(;;) {
1834 AVPacket pkt;
1835 int fifo_bytes;
1836 av_init_packet(&pkt);
1837 pkt.stream_index= ost->index;
1838
1839 switch(ost->st->codec->codec_type) {
1840 case AVMEDIA_TYPE_AUDIO:
1841 fifo_bytes = av_fifo_size(ost->fifo);
1842 ret = 0;
1843 /* encode any samples remaining in fifo */
1844 if (fifo_bytes > 0) {
1845 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1846 int fs_tmp = enc->frame_size;
1847
1848 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1849 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1850 enc->frame_size = fifo_bytes / (osize * enc->channels);
1851 } else { /* pad */
1852 int frame_bytes = enc->frame_size*osize*enc->channels;
1853 if (samples_size < frame_bytes)
1854 av_exit(1);
1855 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1856 }
1857
1858 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1859 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1860 ost->st->time_base.num, enc->sample_rate);
1861 enc->frame_size = fs_tmp;
1862 }
1863 if(ret <= 0) {
1864 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1865 }
1866 if (ret < 0) {
1867 fprintf(stderr, "Audio encoding failed\n");
1868 av_exit(1);
1869 }
1870 audio_size += ret;
1871 pkt.flags |= AV_PKT_FLAG_KEY;
1872 break;
1873 case AVMEDIA_TYPE_VIDEO:
1874 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1875 if (ret < 0) {
1876 fprintf(stderr, "Video encoding failed\n");
1877 av_exit(1);
1878 }
1879 video_size += ret;
1880 if(enc->coded_frame && enc->coded_frame->key_frame)
1881 pkt.flags |= AV_PKT_FLAG_KEY;
1882 if (ost->logfile && enc->stats_out) {
1883 fprintf(ost->logfile, "%s", enc->stats_out);
1884 }
1885 break;
1886 default:
1887 ret=-1;
1888 }
1889
1890 if(ret<=0)
1891 break;
1892 pkt.data= bit_buffer;
1893 pkt.size= ret;
1894 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1895 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1896 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1897 }
1898 }
1899 }
1900 }
1901 }
1902
1903 return 0;
1904 fail_decode:
1905 return -1;
1906 }
1907
1908 static void print_sdp(AVFormatContext **avc, int n)
1909 {
1910 char sdp[2048];
1911
1912 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1913 printf("SDP:\n%s\n", sdp);
1914 fflush(stdout);
1915 }
1916
1917 static int copy_chapters(int infile, int outfile)
1918 {
1919 AVFormatContext *is = input_files[infile];
1920 AVFormatContext *os = output_files[outfile];
1921 int i;
1922
1923 for (i = 0; i < is->nb_chapters; i++) {
1924 AVChapter *in_ch = is->chapters[i], *out_ch;
1925 AVMetadataTag *t = NULL;
1926 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1927 AV_TIME_BASE_Q, in_ch->time_base);
1928 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1929 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1930
1931
1932 if (in_ch->end < ts_off)
1933 continue;
1934 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1935 break;
1936
1937 out_ch = av_mallocz(sizeof(AVChapter));
1938 if (!out_ch)
1939 return AVERROR(ENOMEM);
1940
1941 out_ch->id = in_ch->id;
1942 out_ch->time_base = in_ch->time_base;
1943 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1944 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1945
1946 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1947 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1948
1949 os->nb_chapters++;
1950 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1951 if (!os->chapters)
1952 return AVERROR(ENOMEM);
1953 os->chapters[os->nb_chapters - 1] = out_ch;
1954 }
1955 return 0;
1956 }
1957
1958 /*
1959 * The following code is the main loop of the file converter
1960 */
1961 static int av_transcode(AVFormatContext **output_files,
1962 int nb_output_files,
1963 AVFormatContext **input_files,
1964 int nb_input_files,
1965 AVStreamMap *stream_maps, int nb_stream_maps)
1966 {
1967 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1968 AVFormatContext *is, *os;
1969 AVCodecContext *codec, *icodec;
1970 AVOutputStream *ost, **ost_table = NULL;
1971 AVInputStream *ist, **ist_table = NULL;
1972 AVInputFile *file_table;
1973 char error[1024];
1974 int key;
1975 int want_sdp = 1;
1976 uint8_t no_packet[MAX_FILES]={0};
1977 int no_packet_count=0;
1978
1979 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1980 if (!file_table)
1981 goto fail;
1982
1983 /* input stream init */
1984 j = 0;
1985 for(i=0;i<nb_input_files;i++) {
1986 is = input_files[i];
1987 file_table[i].ist_index = j;
1988 file_table[i].nb_streams = is->nb_streams;
1989 j += is->nb_streams;
1990 }
1991 nb_istreams = j;
1992
1993 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1994 if (!ist_table)
1995 goto fail;
1996
1997 for(i=0;i<nb_istreams;i++) {
1998 ist = av_mallocz(sizeof(AVInputStream));
1999 if (!ist)
2000 goto fail;
2001 ist_table[i] = ist;
2002 }
2003 j = 0;
2004 for(i=0;i<nb_input_files;i++) {
2005 is = input_files[i];
2006 for(k=0;k<is->nb_streams;k++) {
2007 ist = ist_table[j++];
2008 ist->st = is->streams[k];
2009 ist->file_index = i;
2010 ist->index = k;
2011 ist->discard = 1; /* the stream is discarded by default
2012 (changed later) */
2013
2014 if (rate_emu) {
2015 ist->start = av_gettime();
2016 }
2017 }
2018 }
2019
2020 /* output stream init */
2021 nb_ostreams = 0;
2022 for(i=0;i<nb_output_files;i++) {
2023 os = output_files[i];
2024 if (!os->nb_streams) {
2025 dump_format(output_files[i], i, output_files[i]->filename, 1);
2026 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2027 av_exit(1);
2028 }
2029 nb_ostreams += os->nb_streams;
2030 }
2031 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2032 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2033 av_exit(1);
2034 }
2035
2036 /* Sanity check the mapping args -- do the input files & streams exist? */
2037 for(i=0;i<nb_stream_maps;i++) {
2038 int fi = stream_maps[i].file_index;
2039 int si = stream_maps[i].stream_index;
2040
2041 if (fi < 0 || fi > nb_input_files - 1 ||
2042 si < 0 || si > file_table[fi].nb_streams - 1) {
2043 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2044 av_exit(1);
2045 }
2046 fi = stream_maps[i].sync_file_index;
2047 si = stream_maps[i].sync_stream_index;
2048 if (fi < 0 || fi > nb_input_files - 1 ||
2049 si < 0 || si > file_table[fi].nb_streams - 1) {
2050 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2051 av_exit(1);
2052 }
2053 }
2054
2055 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2056 if (!ost_table)
2057 goto fail;
2058 for(i=0;i<nb_ostreams;i++) {
2059 ost = av_mallocz(sizeof(AVOutputStream));
2060 if (!ost)
2061 goto fail;
2062 ost_table[i] = ost;
2063 }
2064
2065 n = 0;
2066 for(k=0;k<nb_output_files;k++) {
2067 os = output_files[k];
2068 for(i=0;i<os->nb_streams;i++,n++) {
2069 int found;
2070 ost = ost_table[n];
2071 ost->file_index = k;
2072 ost->index = i;
2073 ost->st = os->streams[i];
2074 if (nb_stream_maps > 0) {
2075 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2076 stream_maps[n].stream_index;
2077
2078 /* Sanity check that the stream types match */
2079 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2080 int i= ost->file_index;
2081 dump_format(output_files[i], i, output_files[i]->filename, 1);
2082 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2083 stream_maps[n].file_index, stream_maps[n].stream_index,
2084 ost->file_index, ost->index);
2085 av_exit(1);
2086 }
2087
2088 } else {
2089 int best_nb_frames=-1;
2090 /* get corresponding input stream index : we select the first one with the right type */
2091 found = 0;
2092 for(j=0;j<nb_istreams;j++) {
2093 int skip=0;
2094 ist = ist_table[j];
2095 if(opt_programid){
2096 int pi,si;
2097 AVFormatContext *f= input_files[ ist->file_index ];
2098 skip=1;
2099 for(pi=0; pi<f->nb_programs; pi++){
2100 AVProgram *p= f->programs[pi];
2101 if(p->id == opt_programid)
2102 for(si=0; si<p->nb_stream_indexes; si++){
2103 if(f->streams[ p->stream_index[si] ] == ist->st)
2104 skip=0;
2105 }
2106 }
2107 }
2108 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2109 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2110 if(best_nb_frames < ist->st->codec_info_nb_frames){
2111 best_nb_frames= ist->st->codec_info_nb_frames;
2112 ost->source_index = j;
2113 found = 1;
2114 }
2115 }
2116 }
2117
2118 if (!found) {
2119 if(! opt_programid) {
2120 /* try again and reuse existing stream */
2121 for(j=0;j<nb_istreams;j++) {
2122 ist = ist_table[j];
2123 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2124 && ist->st->discard != AVDISCARD_ALL) {
2125 ost->source_index = j;
2126 found = 1;
2127 }
2128 }
2129 }
2130 if (!found) {
2131 int i= ost->file_index;
2132 dump_format(output_files[i], i, output_files[i]->filename, 1);
2133 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2134 ost->file_index, ost->index);
2135 av_exit(1);
2136 }
2137 }
2138 }
2139 ist = ist_table[ost->source_index];
2140 ist->discard = 0;
2141 ost->sync_ist = (nb_stream_maps > 0) ?
2142 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2143 stream_maps[n].sync_stream_index] : ist;
2144 }
2145 }
2146
2147 /* for each output stream, we compute the right encoding parameters */
2148 for(i=0;i<nb_ostreams;i++) {
2149 AVMetadataTag *t = NULL;
2150 ost = ost_table[i];
2151 os = output_files[ost->file_index];
2152 ist = ist_table[ost->source_index];
2153
2154 codec = ost->st->codec;
2155 icodec = ist->st->codec;
2156
2157 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2158 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2159 }
2160
2161 ost->st->disposition = ist->st->disposition;
2162 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2163 codec->chroma_sample_location = icodec->chroma_sample_location;
2164
2165 if (ost->st->stream_copy) {
2166 /* if stream_copy is selected, no need to decode or encode */
2167 codec->codec_id = icodec->codec_id;
2168 codec->codec_type = icodec->codec_type;
2169
2170 if(!codec->codec_tag){
2171 if( !os->oformat->codec_tag
2172 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2173 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2174 codec->codec_tag = icodec->codec_tag;
2175 }
2176
2177 codec->bit_rate = icodec->bit_rate;
2178 codec->extradata= icodec->extradata;
2179 codec->extradata_size= icodec->extradata_size;
2180 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2181 codec->time_base = icodec->time_base;
2182 codec->time_base.num *= icodec->ticks_per_frame;
2183 }else
2184 codec->time_base = ist->st->time_base;
2185 switch(codec->codec_type) {
2186 case AVMEDIA_TYPE_AUDIO:
2187 if(audio_volume != 256) {
2188 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2189 av_exit(1);
2190 }
2191 codec->channel_layout = icodec->channel_layout;
2192 codec->sample_rate = icodec->sample_rate;
2193 codec->channels = icodec->channels;
2194 codec->frame_size = icodec->frame_size;
2195 codec->block_align= icodec->block_align;
2196 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2197 codec->block_align= 0;
2198 if(codec->codec_id == CODEC_ID_AC3)
2199 codec->block_align= 0;
2200 break;
2201 case AVMEDIA_TYPE_VIDEO:
2202 codec->pix_fmt = icodec->pix_fmt;
2203 codec->width = icodec->width;
2204 codec->height = icodec->height;
2205 codec->has_b_frames = icodec->has_b_frames;
2206 break;
2207 case AVMEDIA_TYPE_SUBTITLE:
2208 codec->width = icodec->width;
2209 codec->height = icodec->height;
2210 break;
2211 default:
2212 abort();
2213 }
2214 } else {
2215 switch(codec->codec_type) {
2216 case AVMEDIA_TYPE_AUDIO:
2217 ost->fifo= av_fifo_alloc(1024);
2218 if(!ost->fifo)
2219 goto fail;
2220 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2221 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2222 icodec->request_channels = codec->channels;
2223 ist->decoding_needed = 1;
2224 ost->encoding_needed = 1;
2225 break;
2226 case AVMEDIA_TYPE_VIDEO:
2227 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2228 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2229 av_exit(1);
2230 }
2231 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2232 ost->video_resample = ((codec->width != icodec->width -
2233 (frame_leftBand + frame_rightBand)) ||
2234 (codec->height != icodec->height -
2235 (frame_topBand + frame_bottomBand)) ||
2236 (codec->pix_fmt != icodec->pix_fmt));
2237 if (ost->video_crop) {
2238 ost->topBand = ost->original_topBand = frame_topBand;
2239 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2240 ost->leftBand = ost->original_leftBand = frame_leftBand;
2241 ost->rightBand = ost->original_rightBand = frame_rightBand;
2242 }
2243 if (ost->video_resample) {
2244 avcodec_get_frame_defaults(&ost->pict_tmp);
2245 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2246 codec->width, codec->height)) {
2247 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2248 av_exit(1);
2249 }
2250 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2251 ost->img_resample_ctx = sws_getContext(
2252 icodec->width - (frame_leftBand + frame_rightBand),
2253 icodec->height - (frame_topBand + frame_bottomBand),
2254 icodec->pix_fmt,
2255 codec->width,
2256 codec->height,
2257 codec->pix_fmt,
2258 sws_flags, NULL, NULL, NULL);
2259 if (ost->img_resample_ctx == NULL) {
2260 fprintf(stderr, "Cannot get resampling context\n");
2261 av_exit(1);
2262 }
2263
2264 #if !CONFIG_AVFILTER
2265 ost->original_height = icodec->height;
2266 ost->original_width = icodec->width;
2267 #endif
2268 codec->bits_per_raw_sample= 0;
2269 }
2270 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
2271 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
2272 ost->resample_pix_fmt= icodec->pix_fmt;
2273 ost->encoding_needed = 1;
2274 ist->decoding_needed = 1;
2275
2276 #if CONFIG_AVFILTER
2277 if (configure_filters(ist, ost)) {
2278 fprintf(stderr, "Error opening filters!\n");
2279 exit(1);
2280 }
2281 #endif
2282 break;
2283 case AVMEDIA_TYPE_SUBTITLE:
2284 ost->encoding_needed = 1;
2285 ist->decoding_needed = 1;
2286 break;
2287 default:
2288 abort();
2289 break;
2290 }
2291 /* two pass mode */
2292 if (ost->encoding_needed &&
2293 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2294 char logfilename[1024];
2295 FILE *f;
2296
2297 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2298 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2299 i);
2300 if (codec->flags & CODEC_FLAG_PASS1) {
2301 f = fopen(logfilename, "w");
2302 if (!f) {
2303 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2304 av_exit(1);
2305 }
2306 ost->logfile = f;
2307 } else {
2308 char *logbuffer;
2309 size_t logbuffer_size;
2310 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2311 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2312 av_exit(1);
2313 }
2314 codec->stats_in = logbuffer;
2315 }
2316 }
2317 }
2318 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2319 int size= codec->width * codec->height;
2320 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2321 }
2322 }
2323
2324 if (!bit_buffer)
2325 bit_buffer = av_malloc(bit_buffer_size);
2326 if (!bit_buffer) {
2327 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2328 bit_buffer_size);
2329 ret = AVERROR(ENOMEM);
2330 goto fail;
2331 }
2332
2333 /* open each encoder */
2334 for(i=0;i<nb_ostreams;i++) {
2335 ost = ost_table[i];
2336 if (ost->encoding_needed) {
2337 AVCodec *codec = output_codecs[i];
2338 if (!codec)
2339 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2340 if (!codec) {
2341 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2342 ost->st->codec->codec_id, ost->file_index, ost->index);
2343 ret = AVERROR(EINVAL);
2344 goto dump_format;
2345 }
2346 if (avcodec_open(ost->st->codec, codec) < 0) {
2347 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2348 ost->file_index, ost->index);
2349 ret = AVERROR(EINVAL);
2350 goto dump_format;
2351 }
2352 extra_size += ost->st->codec->extradata_size;
2353 }
2354 }
2355
2356 /* open each decoder */
2357 for(i=0;i<nb_istreams;i++) {
2358 ist = ist_table[i];
2359 if (ist->decoding_needed) {
2360 AVCodec *codec = input_codecs[i];
2361 if (!codec)
2362 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2363 if (!codec) {
2364 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2365 ist->st->codec->codec_id, ist->file_index, ist->index);
2366 ret = AVERROR(EINVAL);
2367 goto dump_format;
2368 }
2369 if (avcodec_open(ist->st->codec, codec) < 0) {
2370 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2371 ist->file_index, ist->index);
2372 ret = AVERROR(EINVAL);
2373 goto dump_format;
2374 }
2375 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2376 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2377 }
2378 }
2379
2380 /* init pts */
2381 for(i=0;i<nb_istreams;i++) {
2382 AVStream *st;
2383 ist = ist_table[i];
2384 st= ist->st;
2385 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2386 ist->next_pts = AV_NOPTS_VALUE;
2387 ist->is_start = 1;
2388 }
2389
2390 /* set meta data information from input file if required */
2391 for (i=0;i<nb_meta_data_maps;i++) {
2392 AVFormatContext *out_file;
2393 AVFormatContext *in_file;
2394 AVMetadataTag *mtag;
2395
2396 int out_file_index = meta_data_maps[i].out_file;
2397 int in_file_index = meta_data_maps[i].in_file;
2398 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2399 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2400 out_file_index, out_file_index, in_file_index);
2401 ret = AVERROR(EINVAL);
2402 goto dump_format;
2403 }
2404 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2405 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2406 in_file_index, out_file_index, in_file_index);
2407 ret = AVERROR(EINVAL);
2408 goto dump_format;
2409 }
2410
2411 out_file = output_files[out_file_index];
2412 in_file = input_files[in_file_index];
2413
2414
2415 mtag=NULL;
2416 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2417 av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2418 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2419 in_file->iformat->metadata_conv);
2420 }
2421
2422 /* copy chapters from the first input file that has them*/
2423 for (i = 0; i < nb_input_files; i++) {
2424 if (!input_files[i]->nb_chapters)
2425 continue;
2426
2427 for (j = 0; j < nb_output_files; j++)
2428 if ((ret = copy_chapters(i, j)) < 0)
2429 goto dump_format;
2430 }
2431
2432 /* open files and write file headers */
2433 for(i=0;i<nb_output_files;i++) {
2434 os = output_files[i];
2435 if (av_write_header(os) < 0) {
2436 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2437 ret = AVERROR(EINVAL);
2438 goto dump_format;
2439 }
2440 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2441 want_sdp = 0;
2442 }
2443 }
2444
2445 dump_format:
2446 /* dump the file output parameters - cannot be done before in case
2447 of stream copy */
2448 for(i=0;i<nb_output_files;i++) {
2449 dump_format(output_files[i], i, output_files[i]->filename, 1);
2450 }
2451
2452 /* dump the stream mapping */
2453 if (verbose >= 0) {
2454 fprintf(stderr, "Stream mapping:\n");
2455 for(i=0;i<nb_ostreams;i++) {
2456 ost = ost_table[i];
2457 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2458 ist_table[ost->source_index]->file_index,
2459 ist_table[ost->source_index]->index,
2460 ost->file_index,
2461 ost->index);
2462 if (ost->sync_ist != ist_table[ost->source_index])
2463 fprintf(stderr, " [sync #%d.%d]",
2464 ost->sync_ist->file_index,
2465 ost->sync_ist->index);
2466 fprintf(stderr, "\n");
2467 }
2468 }
2469
2470 if (ret) {
2471 fprintf(stderr, "%s\n", error);
2472 goto fail;
2473 }
2474
2475 if (want_sdp) {
2476 print_sdp(output_files, nb_output_files);
2477 }
2478
2479 if (!using_stdin && verbose >= 0) {
2480 fprintf(stderr, "Press [q] to stop encoding\n");
2481 url_set_interrupt_cb(decode_interrupt_cb);
2482 }
2483 term_init();
2484
2485 timer_start = av_gettime();
2486
2487 for(; received_sigterm == 0;) {
2488 int file_index, ist_index;
2489 AVPacket pkt;
2490 double ipts_min;
2491 double opts_min;
2492
2493 redo:
2494 ipts_min= 1e100;
2495 opts_min= 1e100;
2496 /* if 'q' pressed, exits */
2497 if (!using_stdin) {
2498 if (q_pressed)
2499 break;
2500 /* read_key() returns 0 on EOF */
2501 key = read_key();
2502 if (key == 'q')
2503 break;
2504 }
2505
2506 /* select the stream that we must read now by looking at the
2507 smallest output pts */
2508 file_index = -1;
2509 for(i=0;i<nb_ostreams;i++) {
2510 double ipts, opts;
2511 ost = ost_table[i];
2512 os = output_files[ost->file_index];
2513 ist = ist_table[ost->source_index];
2514 if(ist->is_past_recording_time || no_packet[ist->file_index])
2515 continue;
2516 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2517 ipts = (double)ist->pts;
2518 if (!file_table[ist->file_index].eof_reached){
2519 if(ipts < ipts_min) {
2520 ipts_min = ipts;
2521 if(input_sync ) file_index = ist->file_index;
2522 }
2523 if(opts < opts_min) {
2524 opts_min = opts;
2525 if(!input_sync) file_index = ist->file_index;
2526 }
2527 }
2528 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2529 file_index= -1;
2530 break;
2531 }
2532 }
2533 /* if none, if is finished */
2534 if (file_index < 0) {
2535 if(no_packet_count){
2536 no_packet_count=0;
2537 memset(no_packet, 0, sizeof(no_packet));
2538 usleep(10000);
2539 continue;
2540 }
2541 break;
2542 }
2543
2544 /* finish if limit size exhausted */
2545 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2546 break;
2547
2548 /* read a frame from it and output it in the fifo */
2549 is = input_files[file_index];
2550 ret= av_read_frame(is, &pkt);
2551 if(ret == AVERROR(EAGAIN)){
2552 no_packet[file_index]=1;
2553 no_packet_count++;
2554 continue;
2555 }
2556 if (ret < 0) {
2557 file_table[file_index].eof_reached = 1;
2558 if (opt_shortest)
2559 break;
2560 else
2561 continue;
2562 }
2563
2564 no_packet_count=0;
2565 memset(no_packet, 0, sizeof(no_packet));
2566
2567 if (do_pkt_dump) {
2568 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2569 }
2570 /* the following test is needed in case new streams appear
2571 dynamically in stream : we ignore them */
2572 if (pkt.stream_index >= file_table[file_index].nb_streams)
2573 goto discard_packet;
2574 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2575 ist = ist_table[ist_index];
2576 if (ist->discard)
2577 goto discard_packet;
2578
2579 if (pkt.dts != AV_NOPTS_VALUE)
2580 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2581 if (pkt.pts != AV_NOPTS_VALUE)
2582 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2583
2584 if(input_files_ts_scale[file_index][pkt.stream_index]){
2585 if(pkt.pts != AV_NOPTS_VALUE)
2586 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2587 if(pkt.dts != AV_NOPTS_VALUE)
2588 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2589 }
2590
2591 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2592 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2593 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2594 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2595 int64_t delta= pkt_dts - ist->next_pts;
2596 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2597 input_files_ts_offset[ist->file_index]-= delta;
2598 if (verbose > 2)
2599 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2600 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2601 if(pkt.pts != AV_NOPTS_VALUE)
2602 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2603 }
2604 }
2605
2606 /* finish if recording time exhausted */
2607 if (recording_time != INT64_MAX &&
2608 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2609 ist->is_past_recording_time = 1;
2610 goto discard_packet;
2611 }
2612
2613 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2614 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2615
2616 if (verbose >= 0)
2617 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2618 ist->file_index, ist->index);
2619 if (exit_on_error)
2620 av_exit(1);
2621 av_free_packet(&pkt);
2622 goto redo;
2623 }
2624
2625 discard_packet:
2626 av_free_packet(&pkt);
2627
2628 /* dump report by using the output first video and audio streams */
2629 print_report(output_files, ost_table, nb_ostreams, 0);
2630 }
2631
2632 /* at the end of stream, we must flush the decoder buffers */
2633 for(i=0;i<nb_istreams;i++) {
2634 ist = ist_table[i];
2635 if (ist->decoding_needed) {
2636 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2637 }
2638 }
2639
2640 term_exit();
2641
2642 /* write the trailer if needed and close file */
2643 for(i=0;i<nb_output_files;i++) {
2644 os = output_files[i];
2645 av_write_trailer(os);
2646 }
2647
2648 /* dump report by using the first video and audio streams */
2649 print_report(output_files, ost_table, nb_ostreams, 1);
2650
2651 /* close each encoder */
2652 for(i=0;i<nb_ostreams;i++) {
2653 ost = ost_table[i];
2654 if (ost->encoding_needed) {
2655 av_freep(&ost->st->codec->stats_in);
2656 avcodec_close(ost->st->codec);
2657 }
2658 }
2659
2660 /* close each decoder */
2661 for(i=0;i<nb_istreams;i++) {
2662 ist = ist_table[i];
2663 if (ist->decoding_needed) {
2664 avcodec_close(ist->st->codec);
2665 }
2666 }
2667 #if CONFIG_AVFILTER
2668 if (filt_graph_all) {
2669 avfilter_graph_destroy(filt_graph_all);
2670 av_freep(&filt_graph_all);
2671 }
2672 #endif
2673
2674 /* finished ! */
2675 ret = 0;
2676
2677 fail:
2678 av_freep(&bit_buffer);
2679 av_free(file_table);
2680
2681 if (ist_table) {
2682 for(i=0;i<nb_istreams;i++) {
2683 ist = ist_table[i];
2684 av_free(ist);
2685 }
2686 av_free(ist_table);
2687 }
2688 if (ost_table) {
2689 for(i=0;i<nb_ostreams;i++) {
2690 ost = ost_table[i];
2691 if (ost) {
2692 if (ost->logfile) {
2693 fclose(ost->logfile);
2694 ost->logfile = NULL;
2695 }
2696 av_fifo_free(ost->fifo); /* works even if fifo is not
2697 initialized but set to zero */
2698 av_free(ost->pict_tmp.data[0]);
2699 if (ost->video_resample)
2700 sws_freeContext(ost->img_resample_ctx);
2701 if (ost->resample)
2702 audio_resample_close(ost->resample);
2703 if (ost->reformat_ctx)
2704 av_audio_convert_free(ost->reformat_ctx);
2705 av_free(ost);
2706 }
2707 }
2708 av_free(ost_table);
2709 }
2710 return ret;
2711 }
2712
2713 static void opt_format(const char *arg)
2714 {
2715 /* compatibility stuff for pgmyuv */
2716 if (!strcmp(arg, "pgmyuv")) {
2717 pgmyuv_compatibility_hack=1;
2718 // opt_image_format(arg);
2719 arg = "image2";
2720 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2721 }
2722
2723 last_asked_format = arg;
2724 }
2725
2726 static void opt_video_rc_override_string(const char *arg)
2727 {
2728 video_rc_override_string = arg;
2729 }
2730
2731 static int opt_me_threshold(const char *opt, const char *arg)
2732 {
2733 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2734 return 0;
2735 }
2736
2737 static int opt_verbose(const char *opt, const char *arg)
2738 {
2739 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2740 return 0;
2741 }
2742
2743 static int opt_frame_rate(const char *opt, const char *arg)
2744 {
2745 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2746 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2747 av_exit(1);
2748 }
2749 return 0;
2750 }
2751
2752 static int opt_bitrate(const char *opt, const char *arg)
2753 {
2754 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2755
2756 opt_default(opt, arg);
2757
2758 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2759 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2760
2761 return 0;
2762 }
2763
2764 static void opt_frame_crop_top(const char *arg)
2765 {
2766 frame_topBand = atoi(arg);
2767 if (frame_topBand < 0) {
2768 fprintf(stderr, "Incorrect top crop size\n");
2769 av_exit(1);
2770 }
2771 if ((frame_topBand) >= frame_height){
2772 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2773 av_exit(1);
2774 }
2775 frame_height -= frame_topBand;
2776 }
2777
2778 static void opt_frame_crop_bottom(const char *arg)
2779 {
2780 frame_bottomBand = atoi(arg);
2781 if (frame_bottomBand < 0) {
2782 fprintf(stderr, "Incorrect bottom crop size\n");
2783 av_exit(1);
2784 }
2785 if ((frame_bottomBand) >= frame_height){
2786 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2787 av_exit(1);
2788 }
2789 frame_height -= frame_bottomBand;
2790 }
2791
2792 static void opt_frame_crop_left(const char *arg)
2793 {
2794 frame_leftBand = atoi(arg);
2795 if (frame_leftBand < 0) {
2796 fprintf(stderr, "Incorrect left crop size\n");
2797 av_exit(1);
2798 }
2799 if ((frame_leftBand) >= frame_width){
2800 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2801 av_exit(1);
2802 }
2803 frame_width -= frame_leftBand;
2804 }
2805
2806 static void opt_frame_crop_right(const char *arg)
2807 {
2808 frame_rightBand = atoi(arg);
2809 if (frame_rightBand < 0) {
2810 fprintf(stderr, "Incorrect right crop size\n");
2811 av_exit(1);
2812 }
2813 if ((frame_rightBand) >= frame_width){
2814 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2815 av_exit(1);
2816 }
2817 frame_width -= frame_rightBand;
2818 }
2819
2820 static void opt_frame_size(const char *arg)
2821 {
2822 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2823 fprintf(stderr, "Incorrect frame size\n");
2824 av_exit(1);
2825 }
2826 }
2827
2828 static void opt_pad(const char *arg) {
2829 fprintf(stderr, "Please use vfilters=pad\n");
2830 av_exit(1);
2831 }
2832
2833 static void opt_frame_pix_fmt(const char *arg)
2834 {
2835 if (strcmp(arg, "list")) {
2836 frame_pix_fmt = av_get_pix_fmt(arg);
2837 if (frame_pix_fmt == PIX_FMT_NONE) {
2838 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2839 av_exit(1);
2840 }
2841 } else {
2842 show_pix_fmts();
2843 av_exit(0);
2844 }
2845 }
2846
2847 static void opt_frame_aspect_ratio(const char *arg)
2848 {
2849 int x = 0, y = 0;
2850 double ar = 0;
2851 const char *p;
2852 char *end;
2853
2854 p = strchr(arg, ':');
2855 if (p) {
2856 x = strtol(arg, &end, 10);
2857 if (end == p)
2858 y = strtol(end+1, &end, 10);
2859 if (x > 0 && y > 0)
2860 ar = (double)x / (double)y;
2861 } else
2862 ar = strtod(arg, NULL);
2863
2864 if (!ar) {
2865 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2866 av_exit(1);
2867 }
2868 frame_aspect_ratio = ar;
2869 }
2870
2871 static int opt_metadata(const char *opt, const char *arg)
2872 {
2873 char *mid= strchr(arg, '=');
2874
2875 if(!mid){
2876 fprintf(stderr, "Missing =\n");
2877 av_exit(1);
2878 }
2879 *mid++= 0;
2880
2881 metadata_count++;
2882 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2883 metadata[metadata_count-1].key = av_strdup(arg);
2884 metadata[metadata_count-1].value= av_strdup(mid);
2885
2886 return 0;
2887 }
2888
2889 static void opt_qscale(const char *arg)
2890 {
2891 video_qscale = atof(arg);
2892 if (video_qscale <= 0 ||
2893 video_qscale > 255) {
2894 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2895 av_exit(1);
2896 }
2897 }
2898
2899 static void opt_top_field_first(const char *arg)
2900 {
2901 top_field_first= atoi(arg);
2902 }
2903
2904 static int opt_thread_count(const char *opt, const char *arg)
2905 {
2906 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2907 #if !HAVE_THREADS
2908 if (verbose >= 0)
2909 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2910 #endif
2911 return 0;
2912 }
2913
2914 static void opt_audio_sample_fmt(const char *arg)
2915 {
2916 if (strcmp(arg, "list"))
2917 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2918 else {
2919 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2920 av_exit(0);
2921 }
2922 }
2923
2924 static int opt_audio_rate(const char *opt, const char *arg)
2925 {
2926 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2927 return 0;
2928 }
2929
2930 static int opt_audio_channels(const char *opt, const char *arg)
2931 {
2932 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2933 return 0;
2934 }
2935
2936 static void opt_video_channel(const char *arg)
2937 {
2938 video_channel = strtol(arg, NULL, 0);
2939 }
2940
2941 static void opt_video_standard(const char *arg)
2942 {
2943 video_standard = av_strdup(arg);
2944 }
2945
2946 static void opt_codec(int *pstream_copy, char **pcodec_name,
2947 int codec_type, const char *arg)
2948 {
2949 av_freep(pcodec_name);
2950 if (!strcmp(arg, "copy")) {
2951 *pstream_copy = 1;
2952 } else {
2953 *pcodec_name = av_strdup(arg);
2954 }
2955 }
2956
2957 static void opt_audio_codec(const char *arg)
2958 {
2959 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2960 }
2961
2962 static void opt_audio_tag(const char *arg)
2963 {
2964 char *tail;
2965 audio_codec_tag= strtol(arg, &tail, 0);
2966
2967 if(!tail || *tail)
2968 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2969 }
2970
2971 static void opt_video_tag(const char *arg)
2972 {
2973 char *tail;
2974 video_codec_tag= strtol(arg, &tail, 0);
2975
2976 if(!tail || *tail)
2977 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2978 }
2979
2980 static void opt_video_codec(const char *arg)
2981 {
2982 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2983 }
2984
2985 static void opt_subtitle_codec(const char *arg)
2986 {
2987 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2988 }
2989
2990 static void opt_subtitle_tag(const char *arg)
2991 {
2992 char *tail;
2993 subtitle_codec_tag= strtol(arg, &tail, 0);
2994
2995 if(!tail || *tail)
2996 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2997 }
2998
2999 static void opt_map(const char *arg)
3000 {
3001 AVStreamMap *m;
3002 char *p;
3003
3004 m = &stream_maps[nb_stream_maps++];
3005
3006 m->file_index = strtol(arg, &p, 0);
3007 if (*p)
3008 p++;
3009
3010 m->stream_index = strtol(p, &p, 0);
3011 if (*p) {
3012 p++;
3013 m->sync_file_index = strtol(p, &p, 0);
3014 if (*p)
3015 p++;
3016 m->sync_stream_index = strtol(p, &p, 0);
3017 } else {
3018 m->sync_file_index = m->file_index;
3019 m->sync_stream_index = m->stream_index;
3020 }
3021 }
3022
3023 static void opt_map_meta_data(const char *arg)
3024 {
3025 AVMetaDataMap *m;
3026 char *p;
3027
3028 m = &meta_data_maps[nb_meta_data_maps++];
3029
3030 m->out_file = strtol(arg, &p, 0);
3031 if (*p)
3032 p++;
3033
3034 m->in_file = strtol(p, &p, 0);
3035 }
3036
3037 static void opt_input_ts_scale(const char *arg)
3038 {
3039 unsigned int stream;
3040 double scale;
3041 char *p;
3042
3043 stream = strtol(arg, &p, 0);
3044 if (*p)
3045 p++;
3046 scale= strtod(p, &p);
3047
3048 if(stream >= MAX_STREAMS)
3049 av_exit(1);
3050
3051 input_files_ts_scale[nb_input_files][stream]= scale;
3052 }
3053
3054 static int opt_recording_time(const char *opt, const char *arg)
3055 {
3056 recording_time = parse_time_or_die(opt, arg, 1);
3057 return 0;
3058 }
3059
3060 static int opt_start_time(const char *opt, const char *arg)
3061 {
3062 start_time = parse_time_or_die(opt, arg, 1);
3063 return 0;
3064 }
3065
3066 static int opt_rec_timestamp(const char *opt, const char *arg)
3067 {
3068 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3069 return 0;
3070 }
3071
3072 static int opt_input_ts_offset(const char *opt, const char *arg)
3073 {
3074 input_ts_offset = parse_time_or_die(opt, arg, 1);
3075 return 0;
3076 }
3077
3078 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3079 {
3080 const char *codec_string = encoder ? "encoder" : "decoder";
3081 AVCodec *codec;
3082
3083 if(!name)
3084 return CODEC_ID_NONE;
3085 codec = encoder ?
3086 avcodec_find_encoder_by_name(name) :
3087 avcodec_find_decoder_by_name(name);
3088 if(!codec) {
3089 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3090 av_exit(1);
3091 }
3092 if(codec->type != type) {
3093 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3094 av_exit(1);
3095 }
3096 return codec->id;
3097 }
3098
3099 static void opt_input_file(const char *filename)
3100 {
3101 AVFormatContext *ic;
3102 AVFormatParameters params, *ap = &params;
3103 AVInputFormat *file_iformat = NULL;
3104 int err, i, ret, rfps, rfps_base;
3105 int64_t timestamp;
3106
3107 if (last_asked_format) {
3108 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3109 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3110 av_exit(1);
3111 }
3112 last_asked_format = NULL;
3113 }
3114
3115 if (!strcmp(filename, "-"))
3116 filename = "pipe:";
3117
3118 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3119 !strcmp(filename, "/dev/stdin");
3120
3121 /* get default parameters from command line */
3122 ic = avformat_alloc_context();
3123 if (!ic) {
3124 print_error(filename, AVERROR(ENOMEM));
3125 av_exit(1);
3126 }
3127
3128 memset(ap, 0, sizeof(*ap));
3129 ap->prealloced_context = 1;
3130 ap->sample_rate = audio_sample_rate;
3131 ap->channels = audio_channels;
3132 ap->time_base.den = frame_rate.num;
3133 ap->time_base.num = frame_rate.den;
3134 ap->width = frame_width;
3135 ap->height = frame_height;
3136 ap->pix_fmt = frame_pix_fmt;
3137 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3138 ap->channel = video_channel;
3139 ap->standard = video_standard;
3140
3141 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3142
3143 ic->video_codec_id = find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0);
3144 ic->audio_codec_id = find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0);
3145 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3146 ic->flags |= AVFMT_FLAG_NONBLOCK;
3147
3148 if(pgmyuv_compatibility_hack)
3149 ic->video_codec_id= CODEC_ID_PGMYUV;
3150
3151 /* open the input file with generic libav function */
3152 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3153 if (err < 0) {
3154 print_error(filename, err);
3155 av_exit(1);
3156 }
3157 if(opt_programid) {
3158 int i, j;
3159 int found=0;
3160 for(i=0; i<ic->nb_streams; i++){
3161 ic->streams[i]->discard= AVDISCARD_ALL;
3162 }
3163 for(i=0; i<ic->nb_programs; i++){
3164 AVProgram *p= ic->programs[i];
3165 if(p->id != opt_programid){
3166 p->discard = AVDISCARD_ALL;
3167 }else{
3168 found=1;
3169 for(j=0; j<p->nb_stream_indexes; j++){
3170 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3171 }
3172 }
3173 }
3174 if(!found){
3175 fprintf(stderr, "Specified program id not found\n");
3176 av_exit(1);
3177 }
3178 opt_programid=0;
3179 }
3180
3181 ic->loop_input = loop_input;
3182
3183 /* If not enough info to get the stream parameters, we decode the
3184 first frames to get it. (used in mpeg case for example) */
3185 ret = av_find_stream_info(ic);
3186 if (ret < 0 && verbose >= 0) {
3187 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3188 av_exit(1);
3189 }
3190
3191 timestamp = start_time;
3192 /* add the stream start time */
3193 if (ic->start_time != AV_NOPTS_VALUE)
3194 timestamp += ic->start_time;
3195
3196 /* if seeking requested, we execute it */
3197 if (start_time != 0) {
3198 ret = av_seek_frame(ic, -1,<