866b90ca7db84d08d84200ee4e5051219e1be226
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <stdint.h>
31
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/time.h"
49 #include "libavformat/os_support.h"
50
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/time.h>
57 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #if HAVE_PTHREADS
72 #include <pthread.h>
73 #endif
74
75 #include <time.h>
76
77 #include "avconv.h"
78 #include "cmdutils.h"
79
80 #include "libavutil/avassert.h"
81
82 const char program_name[] = "avconv";
83 const int program_birth_year = 2000;
84
85 static FILE *vstats_file;
86
87 static int nb_frames_drop = 0;
88
89
90
91 #if HAVE_PTHREADS
92 /* signal to input threads that they should exit; set by the main thread */
93 static int transcoding_finished;
94 #endif
95
96 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
97
98 InputStream **input_streams = NULL;
99 int nb_input_streams = 0;
100 InputFile **input_files = NULL;
101 int nb_input_files = 0;
102
103 OutputStream **output_streams = NULL;
104 int nb_output_streams = 0;
105 OutputFile **output_files = NULL;
106 int nb_output_files = 0;
107
108 FilterGraph **filtergraphs;
109 int nb_filtergraphs;
110
111 static void term_exit(void)
112 {
113 av_log(NULL, AV_LOG_QUIET, "");
114 }
115
116 static volatile int received_sigterm = 0;
117 static volatile int received_nb_signals = 0;
118
119 static void
120 sigterm_handler(int sig)
121 {
122 received_sigterm = sig;
123 received_nb_signals++;
124 term_exit();
125 }
126
127 static void term_init(void)
128 {
129 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
130 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
131 #ifdef SIGXCPU
132 signal(SIGXCPU, sigterm_handler);
133 #endif
134 }
135
136 static int decode_interrupt_cb(void *ctx)
137 {
138 return received_nb_signals > 1;
139 }
140
141 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
142
143 static void avconv_cleanup(int ret)
144 {
145 int i, j;
146
147 for (i = 0; i < nb_filtergraphs; i++) {
148 avfilter_graph_free(&filtergraphs[i]->graph);
149 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
150 av_freep(&filtergraphs[i]->inputs[j]->name);
151 av_freep(&filtergraphs[i]->inputs[j]);
152 }
153 av_freep(&filtergraphs[i]->inputs);
154 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
155 av_freep(&filtergraphs[i]->outputs[j]->name);
156 av_freep(&filtergraphs[i]->outputs[j]);
157 }
158 av_freep(&filtergraphs[i]->outputs);
159 av_freep(&filtergraphs[i]->graph_desc);
160 av_freep(&filtergraphs[i]);
161 }
162 av_freep(&filtergraphs);
163
164 /* close files */
165 for (i = 0; i < nb_output_files; i++) {
166 AVFormatContext *s = output_files[i]->ctx;
167 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
168 avio_close(s->pb);
169 avformat_free_context(s);
170 av_dict_free(&output_files[i]->opts);
171 av_freep(&output_files[i]);
172 }
173 for (i = 0; i < nb_output_streams; i++) {
174 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
175 while (bsfc) {
176 AVBitStreamFilterContext *next = bsfc->next;
177 av_bitstream_filter_close(bsfc);
178 bsfc = next;
179 }
180 output_streams[i]->bitstream_filters = NULL;
181 av_frame_free(&output_streams[i]->filtered_frame);
182
183 av_parser_close(output_streams[i]->parser);
184
185 av_freep(&output_streams[i]->forced_keyframes);
186 av_freep(&output_streams[i]->avfilter);
187 av_freep(&output_streams[i]->logfile_prefix);
188 av_freep(&output_streams[i]);
189 }
190 for (i = 0; i < nb_input_files; i++) {
191 avformat_close_input(&input_files[i]->ctx);
192 av_freep(&input_files[i]);
193 }
194 for (i = 0; i < nb_input_streams; i++) {
195 av_frame_free(&input_streams[i]->decoded_frame);
196 av_frame_free(&input_streams[i]->filter_frame);
197 av_dict_free(&input_streams[i]->opts);
198 av_freep(&input_streams[i]->filters);
199 av_freep(&input_streams[i]->hwaccel_device);
200 av_freep(&input_streams[i]);
201 }
202
203 if (vstats_file)
204 fclose(vstats_file);
205 av_free(vstats_filename);
206
207 av_freep(&input_streams);
208 av_freep(&input_files);
209 av_freep(&output_streams);
210 av_freep(&output_files);
211
212 uninit_opts();
213
214 avformat_network_deinit();
215
216 if (received_sigterm) {
217 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
218 (int) received_sigterm);
219 exit (255);
220 }
221 }
222
223 void assert_avoptions(AVDictionary *m)
224 {
225 AVDictionaryEntry *t;
226 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
227 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
228 exit_program(1);
229 }
230 }
231
232 static void abort_codec_experimental(AVCodec *c, int encoder)
233 {
234 const char *codec_string = encoder ? "encoder" : "decoder";
235 AVCodec *codec;
236 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
237 "results.\nAdd '-strict experimental' if you want to use it.\n",
238 codec_string, c->name);
239 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
240 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
241 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
242 codec_string, codec->name);
243 exit_program(1);
244 }
245
246 /*
247 * Update the requested input sample format based on the output sample format.
248 * This is currently only used to request float output from decoders which
249 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
250 * Ideally this will be removed in the future when decoders do not do format
251 * conversion and only output in their native format.
252 */
253 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
254 AVCodecContext *enc)
255 {
256 /* if sample formats match or a decoder sample format has already been
257 requested, just return */
258 if (enc->sample_fmt == dec->sample_fmt ||
259 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
260 return;
261
262 /* if decoder supports more than one output format */
263 if (dec_codec && dec_codec->sample_fmts &&
264 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
265 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
266 const enum AVSampleFormat *p;
267 int min_dec = INT_MAX, min_inc = INT_MAX;
268 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
269 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
270
271 /* find a matching sample format in the encoder */
272 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
273 if (*p == enc->sample_fmt) {
274 dec->request_sample_fmt = *p;
275 return;
276 } else {
277 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
278 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
279 int fmt_diff = 32 * abs(dfmt - efmt);
280 if (av_sample_fmt_is_planar(*p) !=
281 av_sample_fmt_is_planar(enc->sample_fmt))
282 fmt_diff++;
283 if (dfmt == efmt) {
284 min_inc = fmt_diff;
285 inc_fmt = *p;
286 } else if (dfmt > efmt) {
287 if (fmt_diff < min_inc) {
288 min_inc = fmt_diff;
289 inc_fmt = *p;
290 }
291 } else {
292 if (fmt_diff < min_dec) {
293 min_dec = fmt_diff;
294 dec_fmt = *p;
295 }
296 }
297 }
298 }
299
300 /* if none match, provide the one that matches quality closest */
301 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
302 }
303 }
304
305 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
306 {
307 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
308 AVCodecContext *avctx = ost->st->codec;
309 int ret;
310
311 /*
312 * Audio encoders may split the packets -- #frames in != #packets out.
313 * But there is no reordering, so we can limit the number of output packets
314 * by simply dropping them here.
315 * Counting encoded video frames needs to be done separately because of
316 * reordering, see do_video_out()
317 */
318 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
319 if (ost->frame_number >= ost->max_frames) {
320 av_free_packet(pkt);
321 return;
322 }
323 ost->frame_number++;
324 }
325
326 while (bsfc) {
327 AVPacket new_pkt = *pkt;
328 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
329 &new_pkt.data, &new_pkt.size,
330 pkt->data, pkt->size,
331 pkt->flags & AV_PKT_FLAG_KEY);
332 if (a > 0) {
333 av_free_packet(pkt);
334 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
335 av_buffer_default_free, NULL, 0);
336 if (!new_pkt.buf)
337 exit_program(1);
338 } else if (a < 0) {
339 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
340 bsfc->filter->name, pkt->stream_index,
341 avctx->codec ? avctx->codec->name : "copy");
342 print_error("", a);
343 if (exit_on_error)
344 exit_program(1);
345 }
346 *pkt = new_pkt;
347
348 bsfc = bsfc->next;
349 }
350
351 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
352 ost->last_mux_dts != AV_NOPTS_VALUE &&
353 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
354 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
355 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
356 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
357 if (exit_on_error) {
358 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
359 exit_program(1);
360 }
361 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
362 "in incorrect timestamps in the output file.\n",
363 ost->last_mux_dts + 1);
364 pkt->dts = ost->last_mux_dts + 1;
365 if (pkt->pts != AV_NOPTS_VALUE)
366 pkt->pts = FFMAX(pkt->pts, pkt->dts);
367 }
368 ost->last_mux_dts = pkt->dts;
369
370 ost->data_size += pkt->size;
371 ost->packets_written++;
372
373 pkt->stream_index = ost->index;
374 ret = av_interleaved_write_frame(s, pkt);
375 if (ret < 0) {
376 print_error("av_interleaved_write_frame()", ret);
377 exit_program(1);
378 }
379 }
380
381 static int check_recording_time(OutputStream *ost)
382 {
383 OutputFile *of = output_files[ost->file_index];
384
385 if (of->recording_time != INT64_MAX &&
386 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
387 AV_TIME_BASE_Q) >= 0) {
388 ost->finished = 1;
389 return 0;
390 }
391 return 1;
392 }
393
394 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
395 AVFrame *frame)
396 {
397 AVCodecContext *enc = ost->st->codec;
398 AVPacket pkt;
399 int got_packet = 0;
400
401 av_init_packet(&pkt);
402 pkt.data = NULL;
403 pkt.size = 0;
404
405 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
406 frame->pts = ost->sync_opts;
407 ost->sync_opts = frame->pts + frame->nb_samples;
408
409 ost->samples_encoded += frame->nb_samples;
410 ost->frames_encoded++;
411
412 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
413 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
414 exit_program(1);
415 }
416
417 if (got_packet) {
418 if (pkt.pts != AV_NOPTS_VALUE)
419 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
420 if (pkt.dts != AV_NOPTS_VALUE)
421 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
422 if (pkt.duration > 0)
423 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
424
425 write_frame(s, &pkt, ost);
426 }
427 }
428
429 static void do_subtitle_out(AVFormatContext *s,
430 OutputStream *ost,
431 InputStream *ist,
432 AVSubtitle *sub,
433 int64_t pts)
434 {
435 static uint8_t *subtitle_out = NULL;
436 int subtitle_out_max_size = 1024 * 1024;
437 int subtitle_out_size, nb, i;
438 AVCodecContext *enc;
439 AVPacket pkt;
440
441 if (pts == AV_NOPTS_VALUE) {
442 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
443 if (exit_on_error)
444 exit_program(1);
445 return;
446 }
447
448 enc = ost->st->codec;
449
450 if (!subtitle_out) {
451 subtitle_out = av_malloc(subtitle_out_max_size);
452 }
453
454 /* Note: DVB subtitle need one packet to draw them and one other
455 packet to clear them */
456 /* XXX: signal it in the codec context ? */
457 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
458 nb = 2;
459 else
460 nb = 1;
461
462 for (i = 0; i < nb; i++) {
463 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
464 if (!check_recording_time(ost))
465 return;
466
467 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
468 // start_display_time is required to be 0
469 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
470 sub->end_display_time -= sub->start_display_time;
471 sub->start_display_time = 0;
472
473 ost->frames_encoded++;
474
475 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
476 subtitle_out_max_size, sub);
477 if (subtitle_out_size < 0) {
478 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
479 exit_program(1);
480 }
481
482 av_init_packet(&pkt);
483 pkt.data = subtitle_out;
484 pkt.size = subtitle_out_size;
485 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
486 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
487 /* XXX: the pts correction is handled here. Maybe handling
488 it in the codec would be better */
489 if (i == 0)
490 pkt.pts += 90 * sub->start_display_time;
491 else
492 pkt.pts += 90 * sub->end_display_time;
493 }
494 write_frame(s, &pkt, ost);
495 }
496 }
497
498 static void do_video_out(AVFormatContext *s,
499 OutputStream *ost,
500 AVFrame *in_picture,
501 int *frame_size)
502 {
503 int ret, format_video_sync;
504 AVPacket pkt;
505 AVCodecContext *enc = ost->st->codec;
506
507 *frame_size = 0;
508
509 format_video_sync = video_sync_method;
510 if (format_video_sync == VSYNC_AUTO)
511 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
512 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
513 if (format_video_sync != VSYNC_PASSTHROUGH &&
514 ost->frame_number &&
515 in_picture->pts != AV_NOPTS_VALUE &&
516 in_picture->pts < ost->sync_opts) {
517 nb_frames_drop++;
518 av_log(NULL, AV_LOG_WARNING,
519 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
520 ost->frame_number, ost->st->index, in_picture->pts);
521 return;
522 }
523
524 if (in_picture->pts == AV_NOPTS_VALUE)
525 in_picture->pts = ost->sync_opts;
526 ost->sync_opts = in_picture->pts;
527
528
529 if (!ost->frame_number)
530 ost->first_pts = in_picture->pts;
531
532 av_init_packet(&pkt);
533 pkt.data = NULL;
534 pkt.size = 0;
535
536 if (ost->frame_number >= ost->max_frames)
537 return;
538
539 if (s->oformat->flags & AVFMT_RAWPICTURE &&
540 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
541 /* raw pictures are written as AVPicture structure to
542 avoid any copies. We support temporarily the older
543 method. */
544 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
545 enc->coded_frame->top_field_first = in_picture->top_field_first;
546 pkt.data = (uint8_t *)in_picture;
547 pkt.size = sizeof(AVPicture);
548 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
549 pkt.flags |= AV_PKT_FLAG_KEY;
550
551 write_frame(s, &pkt, ost);
552 } else {
553 int got_packet;
554
555 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
556 ost->top_field_first >= 0)
557 in_picture->top_field_first = !!ost->top_field_first;
558
559 in_picture->quality = ost->st->codec->global_quality;
560 if (!enc->me_threshold)
561 in_picture->pict_type = 0;
562 if (ost->forced_kf_index < ost->forced_kf_count &&
563 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
564 in_picture->pict_type = AV_PICTURE_TYPE_I;
565 ost->forced_kf_index++;
566 }
567
568 ost->frames_encoded++;
569
570 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
571 if (ret < 0) {
572 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
573 exit_program(1);
574 }
575
576 if (got_packet) {
577 if (pkt.pts != AV_NOPTS_VALUE)
578 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
579 if (pkt.dts != AV_NOPTS_VALUE)
580 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
581
582 write_frame(s, &pkt, ost);
583 *frame_size = pkt.size;
584
585 /* if two pass, output log */
586 if (ost->logfile && enc->stats_out) {
587 fprintf(ost->logfile, "%s", enc->stats_out);
588 }
589 }
590 }
591 ost->sync_opts++;
592 /*
593 * For video, number of frames in == number of packets out.
594 * But there may be reordering, so we can't throw away frames on encoder
595 * flush, we need to limit them here, before they go into encoder.
596 */
597 ost->frame_number++;
598 }
599
600 static double psnr(double d)
601 {
602 return -10.0 * log(d) / log(10.0);
603 }
604
605 static void do_video_stats(OutputStream *ost, int frame_size)
606 {
607 AVCodecContext *enc;
608 int frame_number;
609 double ti1, bitrate, avg_bitrate;
610
611 /* this is executed just the first time do_video_stats is called */
612 if (!vstats_file) {
613 vstats_file = fopen(vstats_filename, "w");
614 if (!vstats_file) {
615 perror("fopen");
616 exit_program(1);
617 }
618 }
619
620 enc = ost->st->codec;
621 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
622 frame_number = ost->frame_number;
623 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
624 if (enc->flags&CODEC_FLAG_PSNR)
625 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
626
627 fprintf(vstats_file,"f_size= %6d ", frame_size);
628 /* compute pts value */
629 ti1 = ost->sync_opts * av_q2d(enc->time_base);
630 if (ti1 < 0.01)
631 ti1 = 0.01;
632
633 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
634 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
635 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
636 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
637 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
638 }
639 }
640
641 /*
642 * Read one frame for lavfi output for ost and encode it.
643 */
644 static int poll_filter(OutputStream *ost)
645 {
646 OutputFile *of = output_files[ost->file_index];
647 AVFrame *filtered_frame = NULL;
648 int frame_size, ret;
649
650 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
651 return AVERROR(ENOMEM);
652 }
653 filtered_frame = ost->filtered_frame;
654
655 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
656 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
657 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
658 ost->st->codec->frame_size);
659 else
660 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
661
662 if (ret < 0)
663 return ret;
664
665 if (filtered_frame->pts != AV_NOPTS_VALUE) {
666 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
667 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
668 ost->filter->filter->inputs[0]->time_base,
669 ost->st->codec->time_base) -
670 av_rescale_q(start_time,
671 AV_TIME_BASE_Q,
672 ost->st->codec->time_base);
673 }
674
675 switch (ost->filter->filter->inputs[0]->type) {
676 case AVMEDIA_TYPE_VIDEO:
677 if (!ost->frame_aspect_ratio)
678 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
679
680 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
681 if (vstats_filename && frame_size)
682 do_video_stats(ost, frame_size);
683 break;
684 case AVMEDIA_TYPE_AUDIO:
685 do_audio_out(of->ctx, ost, filtered_frame);
686 break;
687 default:
688 // TODO support subtitle filters
689 av_assert0(0);
690 }
691
692 av_frame_unref(filtered_frame);
693
694 return 0;
695 }
696
697 /*
698 * Read as many frames from possible from lavfi and encode them.
699 *
700 * Always read from the active stream with the lowest timestamp. If no frames
701 * are available for it then return EAGAIN and wait for more input. This way we
702 * can use lavfi sources that generate unlimited amount of frames without memory
703 * usage exploding.
704 */
705 static int poll_filters(void)
706 {
707 int i, j, ret = 0;
708
709 while (ret >= 0 && !received_sigterm) {
710 OutputStream *ost = NULL;
711 int64_t min_pts = INT64_MAX;
712
713 /* choose output stream with the lowest timestamp */
714 for (i = 0; i < nb_output_streams; i++) {
715 int64_t pts = output_streams[i]->sync_opts;
716
717 if (!output_streams[i]->filter || output_streams[i]->finished)
718 continue;
719
720 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
721 AV_TIME_BASE_Q);
722 if (pts < min_pts) {
723 min_pts = pts;
724 ost = output_streams[i];
725 }
726 }
727
728 if (!ost)
729 break;
730
731 ret = poll_filter(ost);
732
733 if (ret == AVERROR_EOF) {
734 OutputFile *of = output_files[ost->file_index];
735
736 ost->finished = 1;
737
738 if (of->shortest) {
739 for (j = 0; j < of->ctx->nb_streams; j++)
740 output_streams[of->ost_index + j]->finished = 1;
741 }
742
743 ret = 0;
744 } else if (ret == AVERROR(EAGAIN))
745 return 0;
746 }
747
748 return ret;
749 }
750
751 static void print_final_stats(int64_t total_size)
752 {
753 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
754 uint64_t data_size = 0;
755 float percent = -1.0;
756 int i, j;
757
758 for (i = 0; i < nb_output_streams; i++) {
759 OutputStream *ost = output_streams[i];
760 switch (ost->st->codec->codec_type) {
761 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
762 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
763 default: other_size += ost->data_size; break;
764 }
765 extra_size += ost->st->codec->extradata_size;
766 data_size += ost->data_size;
767 }
768
769 if (data_size && total_size >= data_size)
770 percent = 100.0 * (total_size - data_size) / data_size;
771
772 av_log(NULL, AV_LOG_INFO, "\n");
773 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
774 video_size / 1024.0,
775 audio_size / 1024.0,
776 other_size / 1024.0,
777 extra_size / 1024.0);
778 if (percent >= 0.0)
779 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
780 else
781 av_log(NULL, AV_LOG_INFO, "unknown");
782 av_log(NULL, AV_LOG_INFO, "\n");
783
784 /* print verbose per-stream stats */
785 for (i = 0; i < nb_input_files; i++) {
786 InputFile *f = input_files[i];
787 uint64_t total_packets = 0, total_size = 0;
788
789 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
790 i, f->ctx->filename);
791
792 for (j = 0; j < f->nb_streams; j++) {
793 InputStream *ist = input_streams[f->ist_index + j];
794 enum AVMediaType type = ist->st->codec->codec_type;
795
796 total_size += ist->data_size;
797 total_packets += ist->nb_packets;
798
799 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
800 i, j, media_type_string(type));
801 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
802 ist->nb_packets, ist->data_size);
803
804 if (ist->decoding_needed) {
805 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
806 ist->frames_decoded);
807 if (type == AVMEDIA_TYPE_AUDIO)
808 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
809 av_log(NULL, AV_LOG_VERBOSE, "; ");
810 }
811
812 av_log(NULL, AV_LOG_VERBOSE, "\n");
813 }
814
815 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
816 total_packets, total_size);
817 }
818
819 for (i = 0; i < nb_output_files; i++) {
820 OutputFile *of = output_files[i];
821 uint64_t total_packets = 0, total_size = 0;
822
823 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
824 i, of->ctx->filename);
825
826 for (j = 0; j < of->ctx->nb_streams; j++) {
827 OutputStream *ost = output_streams[of->ost_index + j];
828 enum AVMediaType type = ost->st->codec->codec_type;
829
830 total_size += ost->data_size;
831 total_packets += ost->packets_written;
832
833 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
834 i, j, media_type_string(type));
835 if (ost->encoding_needed) {
836 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
837 ost->frames_encoded);
838 if (type == AVMEDIA_TYPE_AUDIO)
839 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
840 av_log(NULL, AV_LOG_VERBOSE, "; ");
841 }
842
843 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
844 ost->packets_written, ost->data_size);
845
846 av_log(NULL, AV_LOG_VERBOSE, "\n");
847 }
848
849 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
850 total_packets, total_size);
851 }
852 }
853
854 static void print_report(int is_last_report, int64_t timer_start)
855 {
856 char buf[1024];
857 OutputStream *ost;
858 AVFormatContext *oc;
859 int64_t total_size;
860 AVCodecContext *enc;
861 int frame_number, vid, i;
862 double bitrate, ti1, pts;
863 static int64_t last_time = -1;
864 static int qp_histogram[52];
865
866 if (!print_stats && !is_last_report)
867 return;
868
869 if (!is_last_report) {
870 int64_t cur_time;
871 /* display the report every 0.5 seconds */
872 cur_time = av_gettime();
873 if (last_time == -1) {
874 last_time = cur_time;
875 return;
876 }
877 if ((cur_time - last_time) < 500000)
878 return;
879 last_time = cur_time;
880 }
881
882
883 oc = output_files[0]->ctx;
884
885 total_size = avio_size(oc->pb);
886 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
887 total_size = avio_tell(oc->pb);
888 if (total_size < 0) {
889 char errbuf[128];
890 av_strerror(total_size, errbuf, sizeof(errbuf));
891 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
892 "avio_tell() failed: %s\n", errbuf);
893 total_size = 0;
894 }
895
896 buf[0] = '\0';
897 ti1 = 1e10;
898 vid = 0;
899 for (i = 0; i < nb_output_streams; i++) {
900 float q = -1;
901 ost = output_streams[i];
902 enc = ost->st->codec;
903 if (!ost->stream_copy && enc->coded_frame)
904 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
905 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
906 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
907 }
908 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
909 float t = (av_gettime() - timer_start) / 1000000.0;
910
911 frame_number = ost->frame_number;
912 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
913 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
914 if (is_last_report)
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
916 if (qp_hist) {
917 int j;
918 int qp = lrintf(q);
919 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
920 qp_histogram[qp]++;
921 for (j = 0; j < 32; j++)
922 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
923 }
924 if (enc->flags&CODEC_FLAG_PSNR) {
925 int j;
926 double error, error_sum = 0;
927 double scale, scale_sum = 0;
928 char type[3] = { 'Y','U','V' };
929 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
930 for (j = 0; j < 3; j++) {
931 if (is_last_report) {
932 error = enc->error[j];
933 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
934 } else {
935 error = enc->coded_frame->error[j];
936 scale = enc->width * enc->height * 255.0 * 255.0;
937 }
938 if (j)
939 scale /= 4;
940 error_sum += error;
941 scale_sum += scale;
942 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
943 }
944 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
945 }
946 vid = 1;
947 }
948 /* compute min output value */
949 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
950 if ((pts < ti1) && (pts > 0))
951 ti1 = pts;
952 }
953 if (ti1 < 0.01)
954 ti1 = 0.01;
955
956 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
957
958 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
959 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
960 (double)total_size / 1024, ti1, bitrate);
961
962 if (nb_frames_drop)
963 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
964 nb_frames_drop);
965
966 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
967
968 fflush(stderr);
969
970 if (is_last_report)
971 print_final_stats(total_size);
972
973 }
974
975 static void flush_encoders(void)
976 {
977 int i, ret;
978
979 for (i = 0; i < nb_output_streams; i++) {
980 OutputStream *ost = output_streams[i];
981 AVCodecContext *enc = ost->st->codec;
982 AVFormatContext *os = output_files[ost->file_index]->ctx;
983 int stop_encoding = 0;
984
985 if (!ost->encoding_needed)
986 continue;
987
988 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
989 continue;
990 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
991 continue;
992
993 for (;;) {
994 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
995 const char *desc;
996
997 switch (ost->st->codec->codec_type) {
998 case AVMEDIA_TYPE_AUDIO:
999 encode = avcodec_encode_audio2;
1000 desc = "Audio";
1001 break;
1002 case AVMEDIA_TYPE_VIDEO:
1003 encode = avcodec_encode_video2;
1004 desc = "Video";
1005 break;
1006 default:
1007 stop_encoding = 1;
1008 }
1009
1010 if (encode) {
1011 AVPacket pkt;
1012 int got_packet;
1013 av_init_packet(&pkt);
1014 pkt.data = NULL;
1015 pkt.size = 0;
1016
1017 ret = encode(enc, &pkt, NULL, &got_packet);
1018 if (ret < 0) {
1019 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1020 exit_program(1);
1021 }
1022 if (ost->logfile && enc->stats_out) {
1023 fprintf(ost->logfile, "%s", enc->stats_out);
1024 }
1025 if (!got_packet) {
1026 stop_encoding = 1;
1027 break;
1028 }
1029 if (pkt.pts != AV_NOPTS_VALUE)
1030 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1031 if (pkt.dts != AV_NOPTS_VALUE)
1032 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1033 if (pkt.duration > 0)
1034 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1035 write_frame(os, &pkt, ost);
1036 }
1037
1038 if (stop_encoding)
1039 break;
1040 }
1041 }
1042 }
1043
1044 /*
1045 * Check whether a packet from ist should be written into ost at this time
1046 */
1047 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1048 {
1049 OutputFile *of = output_files[ost->file_index];
1050 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1051
1052 if (ost->source_index != ist_index)
1053 return 0;
1054
1055 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1056 return 0;
1057
1058 return 1;
1059 }
1060
1061 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1062 {
1063 OutputFile *of = output_files[ost->file_index];
1064 InputFile *f = input_files [ist->file_index];
1065 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1066 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1067 AVPacket opkt;
1068
1069 av_init_packet(&opkt);
1070
1071 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1072 !ost->copy_initial_nonkeyframes)
1073 return;
1074
1075 if (of->recording_time != INT64_MAX &&
1076 ist->last_dts >= of->recording_time + start_time) {
1077 ost->finished = 1;
1078 return;
1079 }
1080
1081 if (f->recording_time != INT64_MAX) {
1082 start_time = f->ctx->start_time;
1083 if (f->start_time != AV_NOPTS_VALUE)
1084 start_time += f->start_time;
1085 if (ist->last_dts >= f->recording_time + start_time) {
1086 ost->finished = 1;
1087 return;
1088 }
1089 }
1090
1091 /* force the input stream PTS */
1092 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1093 ost->sync_opts++;
1094
1095 if (pkt->pts != AV_NOPTS_VALUE)
1096 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1097 else
1098 opkt.pts = AV_NOPTS_VALUE;
1099
1100 if (pkt->dts == AV_NOPTS_VALUE)
1101 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1102 else
1103 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1104 opkt.dts -= ost_tb_start_time;
1105
1106 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1107 opkt.flags = pkt->flags;
1108
1109 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1110 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1111 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1112 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1113 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1114 ) {
1115 if (av_parser_change(ost->parser, ost->st->codec,
1116 &opkt.data, &opkt.size,
1117 pkt->data, pkt->size,
1118 pkt->flags & AV_PKT_FLAG_KEY)) {
1119 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1120 if (!opkt.buf)
1121 exit_program(1);
1122 }
1123 } else {
1124 opkt.data = pkt->data;
1125 opkt.size = pkt->size;
1126 }
1127
1128 write_frame(of->ctx, &opkt, ost);
1129 ost->st->codec->frame_number++;
1130 }
1131
1132 int guess_input_channel_layout(InputStream *ist)
1133 {
1134 AVCodecContext *dec = ist->st->codec;
1135
1136 if (!dec->channel_layout) {
1137 char layout_name[256];
1138
1139 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1140 if (!dec->channel_layout)
1141 return 0;
1142 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1143 dec->channels, dec->channel_layout);
1144 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1145 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1146 }
1147 return 1;
1148 }
1149
1150 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1151 {
1152 AVFrame *decoded_frame, *f;
1153 AVCodecContext *avctx = ist->st->codec;
1154 int i, ret, err = 0, resample_changed;
1155
1156 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1157 return AVERROR(ENOMEM);
1158 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1159 return AVERROR(ENOMEM);
1160 decoded_frame = ist->decoded_frame;
1161
1162 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1163 if (!*got_output || ret < 0) {
1164 if (!pkt->size) {
1165 for (i = 0; i < ist->nb_filters; i++)
1166 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1167 }
1168 return ret;
1169 }
1170
1171 ist->samples_decoded += decoded_frame->nb_samples;
1172 ist->frames_decoded++;
1173
1174 /* if the decoder provides a pts, use it instead of the last packet pts.
1175 the decoder could be delaying output by a packet or more. */
1176 if (decoded_frame->pts != AV_NOPTS_VALUE)
1177 ist->next_dts = decoded_frame->pts;
1178 else if (pkt->pts != AV_NOPTS_VALUE) {
1179 decoded_frame->pts = pkt->pts;
1180 pkt->pts = AV_NOPTS_VALUE;
1181 }
1182
1183 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1184 ist->resample_channels != avctx->channels ||
1185 ist->resample_channel_layout != decoded_frame->channel_layout ||
1186 ist->resample_sample_rate != decoded_frame->sample_rate;
1187 if (resample_changed) {
1188 char layout1[64], layout2[64];
1189
1190 if (!guess_input_channel_layout(ist)) {
1191 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1192 "layout for Input Stream #%d.%d\n", ist->file_index,
1193 ist->st->index);
1194 exit_program(1);
1195 }
1196 decoded_frame->channel_layout = avctx->channel_layout;
1197
1198 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1199 ist->resample_channel_layout);
1200 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1201 decoded_frame->channel_layout);
1202
1203 av_log(NULL, AV_LOG_INFO,
1204 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
1205 ist->file_index, ist->st->index,
1206 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1207 ist->resample_channels, layout1,
1208 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1209 avctx->channels, layout2);
1210
1211 ist->resample_sample_fmt = decoded_frame->format;
1212 ist->resample_sample_rate = decoded_frame->sample_rate;
1213 ist->resample_channel_layout = decoded_frame->channel_layout;
1214 ist->resample_channels = avctx->channels;
1215
1216 for (i = 0; i < nb_filtergraphs; i++)
1217 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1218 configure_filtergraph(filtergraphs[i]) < 0) {
1219 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1220 exit_program(1);
1221 }
1222 }
1223
1224 if (decoded_frame->pts != AV_NOPTS_VALUE)
1225 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1226 ist->st->time_base,
1227 (AVRational){1, ist->st->codec->sample_rate});
1228 for (i = 0; i < ist->nb_filters; i++) {
1229 if (i < ist->nb_filters - 1) {
1230 f = ist->filter_frame;
1231 err = av_frame_ref(f, decoded_frame);
1232 if (err < 0)
1233 break;
1234 } else
1235 f = decoded_frame;
1236
1237 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1238 if (err < 0)
1239 break;
1240 }
1241
1242 av_frame_unref(ist->filter_frame);
1243 av_frame_unref(decoded_frame);
1244 return err < 0 ? err : ret;
1245 }
1246
1247 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1248 {
1249 AVFrame *decoded_frame, *f;
1250 int i, ret = 0, err = 0, resample_changed;
1251
1252 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1253 return AVERROR(ENOMEM);
1254 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1255 return AVERROR(ENOMEM);
1256 decoded_frame = ist->decoded_frame;
1257
1258 ret = avcodec_decode_video2(ist->st->codec,
1259 decoded_frame, got_output, pkt);
1260 if (!*got_output || ret < 0) {
1261 if (!pkt->size) {
1262 for (i = 0; i < ist->nb_filters; i++)
1263 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1264 }
1265 return ret;
1266 }
1267
1268 ist->frames_decoded++;
1269
1270 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1271 err = ist->hwaccel_retrieve_data(ist->st->codec, decoded_frame);
1272 if (err < 0)
1273 goto fail;
1274 }
1275 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1276
1277 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1278 decoded_frame->pkt_dts);
1279 pkt->size = 0;
1280
1281 if (ist->st->sample_aspect_ratio.num)
1282 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1283
1284 resample_changed = ist->resample_width != decoded_frame->width ||
1285 ist->resample_height != decoded_frame->height ||
1286 ist->resample_pix_fmt != decoded_frame->format;
1287 if (resample_changed) {
1288 av_log(NULL, AV_LOG_INFO,
1289 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1290 ist->file_index, ist->st->index,
1291 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1292 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1293
1294 ret = poll_filters();
1295 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1296 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1297
1298 ist->resample_width = decoded_frame->width;
1299 ist->resample_height = decoded_frame->height;
1300 ist->resample_pix_fmt = decoded_frame->format;
1301
1302 for (i = 0; i < nb_filtergraphs; i++)
1303 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1304 configure_filtergraph(filtergraphs[i]) < 0) {
1305 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1306 exit_program(1);
1307 }
1308 }
1309
1310 for (i = 0; i < ist->nb_filters; i++) {
1311 if (i < ist->nb_filters - 1) {
1312 f = ist->filter_frame;
1313 err = av_frame_ref(f, decoded_frame);
1314 if (err < 0)
1315 break;
1316 } else
1317 f = decoded_frame;
1318
1319 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1320 if (err < 0)
1321 break;
1322 }
1323
1324 fail:
1325 av_frame_unref(ist->filter_frame);
1326 av_frame_unref(decoded_frame);
1327 return err < 0 ? err : ret;
1328 }
1329
1330 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1331 {
1332 AVSubtitle subtitle;
1333 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1334 &subtitle, got_output, pkt);
1335 if (ret < 0)
1336 return ret;
1337 if (!*got_output)
1338 return ret;
1339
1340 ist->frames_decoded++;
1341
1342 for (i = 0; i < nb_output_streams; i++) {
1343 OutputStream *ost = output_streams[i];
1344
1345 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1346 continue;
1347
1348 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1349 }
1350
1351 avsubtitle_free(&subtitle);
1352 return ret;
1353 }
1354
1355 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1356 static int output_packet(InputStream *ist, const AVPacket *pkt)
1357 {
1358 int i;
1359 int got_output;
1360 AVPacket avpkt;
1361
1362 if (ist->next_dts == AV_NOPTS_VALUE)
1363 ist->next_dts = ist->last_dts;
1364
1365 if (pkt == NULL) {
1366 /* EOF handling */
1367 av_init_packet(&avpkt);
1368 avpkt.data = NULL;
1369 avpkt.size = 0;
1370 goto handle_eof;
1371 } else {
1372 avpkt = *pkt;
1373 }
1374
1375 if (pkt->dts != AV_NOPTS_VALUE)
1376 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1377
1378 // while we have more to decode or while the decoder did output something on EOF
1379 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1380 int ret = 0;
1381 handle_eof:
1382
1383 ist->last_dts = ist->next_dts;
1384
1385 if (avpkt.size && avpkt.size != pkt->size &&
1386 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
1387 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1388 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1389 ist->showed_multi_packet_warning = 1;
1390 }
1391
1392 switch (ist->st->codec->codec_type) {
1393 case AVMEDIA_TYPE_AUDIO:
1394 ret = decode_audio (ist, &avpkt, &got_output);
1395 break;
1396 case AVMEDIA_TYPE_VIDEO:
1397 ret = decode_video (ist, &avpkt, &got_output);
1398 if (avpkt.duration)
1399 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1400 else if (ist->st->avg_frame_rate.num)
1401 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1402 AV_TIME_BASE_Q);
1403 else if (ist->st->codec->time_base.num != 0) {
1404 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1405 ist->st->codec->ticks_per_frame;
1406 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1407 }
1408 break;
1409 case AVMEDIA_TYPE_SUBTITLE:
1410 ret = transcode_subtitles(ist, &avpkt, &got_output);
1411 break;
1412 default:
1413 return -1;
1414 }
1415
1416 if (ret < 0)
1417 return ret;
1418 // touch data and size only if not EOF
1419 if (pkt) {
1420 avpkt.data += ret;
1421 avpkt.size -= ret;
1422 }
1423 if (!got_output) {
1424 continue;
1425 }
1426 }
1427
1428 /* handle stream copy */
1429 if (!ist->decoding_needed) {
1430 ist->last_dts = ist->next_dts;
1431 switch (ist->st->codec->codec_type) {
1432 case AVMEDIA_TYPE_AUDIO:
1433 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1434 ist->st->codec->sample_rate;
1435 break;
1436 case AVMEDIA_TYPE_VIDEO:
1437 if (ist->st->codec->time_base.num != 0) {
1438 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1439 ist->next_dts += ((int64_t)AV_TIME_BASE *
1440 ist->st->codec->time_base.num * ticks) /
1441 ist->st->codec->time_base.den;
1442 }
1443 break;
1444 }
1445 }
1446 for (i = 0; pkt && i < nb_output_streams; i++) {
1447 OutputStream *ost = output_streams[i];
1448
1449 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1450 continue;
1451
1452 do_streamcopy(ist, ost, pkt);
1453 }
1454
1455 return 0;
1456 }
1457
1458 static void print_sdp(void)
1459 {
1460 char sdp[16384];
1461 int i;
1462 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1463
1464 if (!avc)
1465 exit_program(1);
1466 for (i = 0; i < nb_output_files; i++)
1467 avc[i] = output_files[i]->ctx;
1468
1469 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1470 printf("SDP:\n%s\n", sdp);
1471 fflush(stdout);
1472 av_freep(&avc);
1473 }
1474
1475 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1476 {
1477 int i;
1478 for (i = 0; hwaccels[i].name; i++)
1479 if (hwaccels[i].pix_fmt == pix_fmt)
1480 return &hwaccels[i];
1481 return NULL;
1482 }
1483
1484 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1485 {
1486 InputStream *ist = s->opaque;
1487 const enum AVPixelFormat *p;
1488 int ret;
1489
1490 for (p = pix_fmts; *p != -1; p++) {
1491 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1492 const HWAccel *hwaccel;
1493
1494 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1495 break;
1496
1497 hwaccel = get_hwaccel(*p);
1498 if (!hwaccel ||
1499 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1500 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1501 continue;
1502
1503 ret = hwaccel->init(s);
1504 if (ret < 0) {
1505 if (ist->hwaccel_id == hwaccel->id) {
1506 av_log(NULL, AV_LOG_FATAL,
1507 "%s hwaccel requested for input stream #%d:%d, "
1508 "but cannot be initialized.\n", hwaccel->name,
1509 ist->file_index, ist->st->index);
1510 exit_program(1);
1511 }
1512 continue;
1513 }
1514 ist->active_hwaccel_id = hwaccel->id;
1515 ist->hwaccel_pix_fmt = *p;
1516 break;
1517 }
1518
1519 return *p;
1520 }
1521
1522 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1523 {
1524 InputStream *ist = s->opaque;
1525
1526 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1527 return ist->hwaccel_get_buffer(s, frame, flags);
1528
1529 return avcodec_default_get_buffer2(s, frame, flags);
1530 }
1531
1532 static int init_input_stream(int ist_index, char *error, int error_len)
1533 {
1534 int i, ret;
1535 InputStream *ist = input_streams[ist_index];
1536 if (ist->decoding_needed) {
1537 AVCodec *codec = ist->dec;
1538 if (!codec) {
1539 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1540 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1541 return AVERROR(EINVAL);
1542 }
1543
1544 /* update requested sample format for the decoder based on the
1545 corresponding encoder sample format */
1546 for (i = 0; i < nb_output_streams; i++) {
1547 OutputStream *ost = output_streams[i];
1548 if (ost->source_index == ist_index) {
1549 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1550 break;
1551 }
1552 }
1553
1554 ist->st->codec->opaque = ist;
1555 ist->st->codec->get_format = get_format;
1556 ist->st->codec->get_buffer2 = get_buffer;
1557 ist->st->codec->thread_safe_callbacks = 1;
1558
1559 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1560
1561 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1562 av_dict_set(&ist->opts, "threads", "auto", 0);
1563 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1564 char errbuf[128];
1565 if (ret == AVERROR_EXPERIMENTAL)
1566 abort_codec_experimental(codec, 0);
1567
1568 av_strerror(ret, errbuf, sizeof(errbuf));
1569
1570 snprintf(error, error_len,
1571 "Error while opening decoder for input stream "
1572 "#%d:%d : %s",
1573 ist->file_index, ist->st->index, errbuf);
1574 return ret;
1575 }
1576 assert_avoptions(ist->opts);
1577 }
1578
1579 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1580 ist->next_dts = AV_NOPTS_VALUE;
1581 init_pts_correction(&ist->pts_ctx);
1582
1583 return 0;
1584 }
1585
1586 static InputStream *get_input_stream(OutputStream *ost)
1587 {
1588 if (ost->source_index >= 0)
1589 return input_streams[ost->source_index];
1590
1591 if (ost->filter) {
1592 FilterGraph *fg = ost->filter->graph;
1593 int i;
1594
1595 for (i = 0; i < fg->nb_inputs; i++)
1596 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1597 return fg->inputs[i]->ist;
1598 }
1599
1600 return NULL;
1601 }
1602
1603 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1604 AVCodecContext *avctx)
1605 {
1606 char *p;
1607 int n = 1, i;
1608 int64_t t;
1609
1610 for (p = kf; *p; p++)
1611 if (*p == ',')
1612 n++;
1613 ost->forced_kf_count = n;
1614 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1615 if (!ost->forced_kf_pts) {
1616 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1617 exit_program(1);
1618 }
1619
1620 p = kf;
1621 for (i = 0; i < n; i++) {
1622 char *next = strchr(p, ',');
1623
1624 if (next)
1625 *next++ = 0;
1626
1627 t = parse_time_or_die("force_key_frames", p, 1);
1628 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1629
1630 p = next;
1631 }
1632 }
1633
1634 static int transcode_init(void)
1635 {
1636 int ret = 0, i, j, k;
1637 AVFormatContext *oc;
1638 AVCodecContext *codec;
1639 OutputStream *ost;
1640 InputStream *ist;
1641 char error[1024];
1642 int want_sdp = 1;
1643
1644 /* init framerate emulation */
1645 for (i = 0; i < nb_input_files; i++) {
1646 InputFile *ifile = input_files[i];
1647 if (ifile->rate_emu)
1648 for (j = 0; j < ifile->nb_streams; j++)
1649 input_streams[j + ifile->ist_index]->start = av_gettime();
1650 }
1651
1652 /* output stream init */
1653 for (i = 0; i < nb_output_files; i++) {
1654 oc = output_files[i]->ctx;
1655 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1656 av_dump_format(oc, i, oc->filename, 1);
1657 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1658 return AVERROR(EINVAL);
1659 }
1660 }
1661
1662 /* init complex filtergraphs */
1663 for (i = 0; i < nb_filtergraphs; i++)
1664 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1665 return ret;
1666
1667 /* for each output stream, we compute the right encoding parameters */
1668 for (i = 0; i < nb_output_streams; i++) {
1669 AVCodecContext *icodec = NULL;
1670 ost = output_streams[i];
1671 oc = output_files[ost->file_index]->ctx;
1672 ist = get_input_stream(ost);
1673
1674 if (ost->attachment_filename)
1675 continue;
1676
1677 codec = ost->st->codec;
1678
1679 if (ist) {
1680 icodec = ist->st->codec;
1681
1682 ost->st->disposition = ist->st->disposition;
1683 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1684 codec->chroma_sample_location = icodec->chroma_sample_location;
1685 }
1686
1687 if (ost->stream_copy) {
1688 AVRational sar;
1689 uint64_t extra_size;
1690
1691 av_assert0(ist && !ost->filter);
1692
1693 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1694
1695 if (extra_size > INT_MAX) {
1696 return AVERROR(EINVAL);
1697 }
1698
1699 /* if stream_copy is selected, no need to decode or encode */
1700 codec->codec_id = icodec->codec_id;
1701 codec->codec_type = icodec->codec_type;
1702
1703 if (!codec->codec_tag) {
1704 if (!oc->oformat->codec_tag ||
1705 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1706 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1707 codec->codec_tag = icodec->codec_tag;
1708 }
1709
1710 codec->bit_rate = icodec->bit_rate;
1711 codec->rc_max_rate = icodec->rc_max_rate;
1712 codec->rc_buffer_size = icodec->rc_buffer_size;
1713 codec->field_order = icodec->field_order;
1714 codec->extradata = av_mallocz(extra_size);
1715 if (!codec->extradata) {
1716 return AVERROR(ENOMEM);
1717 }
1718 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1719 codec->extradata_size = icodec->extradata_size;
1720 if (!copy_tb) {
1721 codec->time_base = icodec->time_base;
1722 codec->time_base.num *= icodec->ticks_per_frame;
1723 av_reduce(&codec->time_base.num, &codec->time_base.den,
1724 codec->time_base.num, codec->time_base.den, INT_MAX);
1725 } else
1726 codec->time_base = ist->st->time_base;
1727
1728 ost->parser = av_parser_init(codec->codec_id);
1729
1730 switch (codec->codec_type) {
1731 case AVMEDIA_TYPE_AUDIO:
1732 if (audio_volume != 256) {
1733 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1734 exit_program(1);
1735 }
1736 codec->channel_layout = icodec->channel_layout;
1737 codec->sample_rate = icodec->sample_rate;
1738 codec->channels = icodec->channels;
1739 codec->frame_size = icodec->frame_size;
1740 codec->audio_service_type = icodec->audio_service_type;
1741 codec->block_align = icodec->block_align;
1742 break;
1743 case AVMEDIA_TYPE_VIDEO:
1744 codec->pix_fmt = icodec->pix_fmt;
1745 codec->width = icodec->width;
1746 codec->height = icodec->height;
1747 codec->has_b_frames = icodec->has_b_frames;
1748 if (ost->frame_aspect_ratio)
1749 sar = av_d2q(ost->frame_aspect_ratio * codec->height / codec->width, 255);
1750 else if (ist->st->sample_aspect_ratio.num)
1751 sar = ist->st->sample_aspect_ratio;
1752 else
1753 sar = icodec->sample_aspect_ratio;
1754 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
1755 break;
1756 case AVMEDIA_TYPE_SUBTITLE:
1757 codec->width = icodec->width;
1758 codec->height = icodec->height;
1759 break;
1760 case AVMEDIA_TYPE_DATA:
1761 case AVMEDIA_TYPE_ATTACHMENT:
1762 break;
1763 default:
1764 abort();
1765 }
1766 } else {
1767 if (!ost->enc) {
1768 /* should only happen when a default codec is not present. */
1769 snprintf(error, sizeof(error), "Automatic encoder selection "
1770 "failed for output stream #%d:%d. Default encoder for "
1771 "format %s is probably disabled. Please choose an "
1772 "encoder manually.\n", ost->file_index, ost->index,
1773 oc->oformat->name);
1774 ret = AVERROR(EINVAL);
1775 goto dump_format;
1776 }
1777
1778 if (ist)
1779 ist->decoding_needed = 1;
1780 ost->encoding_needed = 1;
1781
1782 /*
1783 * We want CFR output if and only if one of those is true:
1784 * 1) user specified output framerate with -r
1785 * 2) user specified -vsync cfr
1786 * 3) output format is CFR and the user didn't force vsync to
1787 * something else than CFR
1788 *
1789 * in such a case, set ost->frame_rate
1790 */
1791 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1792 !ost->frame_rate.num && ist &&
1793 (video_sync_method == VSYNC_CFR ||
1794 (video_sync_method == VSYNC_AUTO &&
1795 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1796 if (ist->framerate.num)
1797 ost->frame_rate = ist->framerate;
1798 else if (ist->st->avg_frame_rate.num)
1799 ost->frame_rate = ist->st->avg_frame_rate;
1800 else {
1801 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1802 "for the output stream #%d:%d, but no information "
1803 "about the input framerate is available. Falling "
1804 "back to a default value of 25fps. Use the -r option "
1805 "if you want a different framerate.\n",
1806 ost->file_index, ost->index);
1807 ost->frame_rate = (AVRational){ 25, 1 };
1808 }
1809
1810 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1811 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1812 ost->frame_rate = ost->enc->supported_framerates[idx];
1813 }
1814 }
1815
1816 if (!ost->filter &&
1817 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1818 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1819 FilterGraph *fg;
1820 fg = init_simple_filtergraph(ist, ost);
1821 if (configure_filtergraph(fg)) {
1822 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1823 exit_program(1);
1824 }
1825 }
1826
1827 switch (codec->codec_type) {
1828 case AVMEDIA_TYPE_AUDIO:
1829 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1830 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1831 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1832 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1833 codec->time_base = (AVRational){ 1, codec->sample_rate };
1834 break;
1835 case AVMEDIA_TYPE_VIDEO:
1836 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1837
1838 codec->width = ost->filter->filter->inputs[0]->w;
1839 codec->height = ost->filter->filter->inputs[0]->h;
1840 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1841 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1842 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1843 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1844 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1845
1846 if (icodec &&
1847 (codec->width != icodec->width ||
1848 codec->height != icodec->height ||
1849 codec->pix_fmt != icodec->pix_fmt)) {
1850 codec->bits_per_raw_sample = 0;
1851 }
1852
1853 if (ost->forced_keyframes)
1854 parse_forced_key_frames(ost->forced_keyframes, ost,
1855 ost->st->codec);
1856 break;
1857 case AVMEDIA_TYPE_SUBTITLE:
1858 codec->time_base = (AVRational){1, 1000};
1859 break;
1860 default:
1861 abort();
1862 break;
1863 }
1864 /* two pass mode */
1865 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1866 char logfilename[1024];
1867 FILE *f;
1868
1869 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1870 ost->logfile_prefix ? ost->logfile_prefix :
1871 DEFAULT_PASS_LOGFILENAME_PREFIX,
1872 i);
1873 if (!strcmp(ost->enc->name, "libx264")) {
1874 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1875 } else {
1876 if (codec->flags & CODEC_FLAG_PASS1) {
1877 f = fopen(logfilename, "wb");
1878 if (!f) {
1879 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1880 logfilename, strerror(errno));
1881 exit_program(1);
1882 }
1883 ost->logfile = f;
1884 } else {
1885 char *logbuffer;
1886 size_t logbuffer_size;
1887 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1888 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1889 logfilename);
1890 exit_program(1);
1891 }
1892 codec->stats_in = logbuffer;
1893 }
1894 }
1895 }
1896 }
1897 }
1898
1899 /* open each encoder */
1900 for (i = 0; i < nb_output_streams; i++) {
1901 ost = output_streams[i];
1902 if (ost->encoding_needed) {
1903 AVCodec *codec = ost->enc;
1904 AVCodecContext *dec = NULL;
1905
1906 if ((ist = get_input_stream(ost)))
1907 dec = ist->st->codec;
1908 if (dec && dec->subtitle_header) {
1909 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1910 if (!ost->st->codec->subtitle_header) {
1911 ret = AVERROR(ENOMEM);
1912 goto dump_format;
1913 }
1914 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1915 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1916 }
1917 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1918 av_dict_set(&ost->opts, "threads", "auto", 0);
1919 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1920 if (ret == AVERROR_EXPERIMENTAL)
1921 abort_codec_experimental(codec, 1);
1922 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1923 ost->file_index, ost->index);
1924 goto dump_format;
1925 }
1926 assert_avoptions(ost->opts);
1927 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1928 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1929 "It takes bits/s as argument, not kbits/s\n");
1930 } else {
1931 av_opt_set_dict(ost->st->codec, &ost->opts);
1932 }
1933 }
1934
1935 /* init input streams */
1936 for (i = 0; i < nb_input_streams; i++)
1937 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1938 goto dump_format;
1939
1940 /* discard unused programs */
1941 for (i = 0; i < nb_input_files; i++) {
1942 InputFile *ifile = input_files[i];
1943 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1944 AVProgram *p = ifile->ctx->programs[j];
1945 int discard = AVDISCARD_ALL;
1946
1947 for (k = 0; k < p->nb_stream_indexes; k++)
1948 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1949 discard = AVDISCARD_DEFAULT;
1950 break;
1951 }
1952 p->discard = discard;
1953 }
1954 }
1955
1956 /* open files and write file headers */
1957 for (i = 0; i < nb_output_files; i++) {
1958 oc = output_files[i]->ctx;
1959 oc->interrupt_callback = int_cb;
1960 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1961 char errbuf[128];
1962 av_strerror(ret, errbuf, sizeof(errbuf));
1963 snprintf(error, sizeof(error),
1964 "Could not write header for output file #%d "
1965 "(incorrect codec parameters ?): %s",
1966 i, errbuf);
1967 ret = AVERROR(EINVAL);
1968 goto dump_format;
1969 }
1970 assert_avoptions(output_files[i]->opts);
1971 if (strcmp(oc->oformat->name, "rtp")) {
1972 want_sdp = 0;
1973 }
1974 }
1975
1976 dump_format:
1977 /* dump the file output parameters - cannot be done before in case
1978 of stream copy */
1979 for (i = 0; i < nb_output_files; i++) {
1980 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1981 }
1982
1983 /* dump the stream mapping */
1984 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1985 for (i = 0; i < nb_input_streams; i++) {
1986 ist = input_streams[i];
1987
1988 for (j = 0; j < ist->nb_filters; j++) {
1989 if (ist->filters[j]->graph->graph_desc) {
1990 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1991 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1992 ist->filters[j]->name);
1993 if (nb_filtergraphs > 1)
1994 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1995 av_log(NULL, AV_LOG_INFO, "\n");
1996 }
1997 }
1998 }
1999
2000 for (i = 0; i < nb_output_streams; i++) {
2001 ost = output_streams[i];
2002
2003 if (ost->attachment_filename) {
2004 /* an attached file */
2005 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2006 ost->attachment_filename, ost->file_index, ost->index);
2007 continue;
2008 }
2009
2010 if (ost->filter && ost->filter->graph->graph_desc) {
2011 /* output from a complex graph */
2012 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2013 if (nb_filtergraphs > 1)
2014 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2015
2016 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2017 ost->index, ost->enc ? ost->enc->name : "?");
2018 continue;
2019 }
2020
2021 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2022 input_streams[ost->source_index]->file_index,
2023 input_streams[ost->source_index]->st->index,
2024 ost->file_index,
2025 ost->index);
2026 if (ost->sync_ist != input_streams[ost->source_index])
2027 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2028 ost->sync_ist->file_index,
2029 ost->sync_ist->st->index);
2030 if (ost->stream_copy)
2031 av_log(NULL, AV_LOG_INFO, " (copy)");
2032 else
2033 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2034 input_streams[ost->source_index]->dec->name : "?",
2035 ost->enc ? ost->enc->name : "?");
2036 av_log(NULL, AV_LOG_INFO, "\n");
2037 }
2038
2039 if (ret) {
2040 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2041 return ret;
2042 }
2043
2044 if (want_sdp) {
2045 print_sdp();
2046 }
2047
2048 return 0;
2049 }
2050
2051 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2052 static int need_output(void)
2053 {
2054 int i;
2055
2056 for (i = 0; i < nb_output_streams; i++) {
2057 OutputStream *ost = output_streams[i];
2058 OutputFile *of = output_files[ost->file_index];
2059 AVFormatContext *os = output_files[ost->file_index]->ctx;
2060
2061 if (ost->finished ||
2062 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2063 continue;
2064 if (ost->frame_number >= ost->max_frames) {
2065 int j;
2066 for (j = 0; j < of->ctx->nb_streams; j++)
2067 output_streams[of->ost_index + j]->finished = 1;
2068 continue;
2069 }
2070
2071 return 1;
2072 }
2073
2074 return 0;
2075 }
2076
2077 static InputFile *select_input_file(void)
2078 {
2079 InputFile *ifile = NULL;
2080 int64_t ipts_min = INT64_MAX;
2081 int i;
2082
2083 for (i = 0; i < nb_input_streams; i++) {
2084 InputStream *ist = input_streams[i];
2085 int64_t ipts = ist->last_dts;
2086
2087 if (ist->discard || input_files[ist->file_index]->eagain)
2088 continue;
2089 if (!input_files[ist->file_index]->eof_reached) {
2090 if (ipts < ipts_min) {
2091 ipts_min = ipts;
2092 ifile = input_files[ist->file_index];
2093 }
2094 }
2095 }
2096
2097 return ifile;
2098 }
2099
2100 #if HAVE_PTHREADS
2101 static void *input_thread(void *arg)
2102 {
2103 InputFile *f = arg;
2104 int ret = 0;
2105
2106 while (!transcoding_finished && ret >= 0) {
2107 AVPacket pkt;
2108 ret = av_read_frame(f->ctx, &pkt);
2109
2110 if (ret == AVERROR(EAGAIN)) {
2111 av_usleep(10000);
2112 ret = 0;
2113 continue;
2114 } else if (ret < 0)
2115 break;
2116
2117 pthread_mutex_lock(&f->fifo_lock);
2118 while (!av_fifo_space(f->fifo))
2119 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2120
2121 av_dup_packet(&pkt);
2122 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2123
2124 pthread_mutex_unlock(&f->fifo_lock);
2125 }
2126
2127 f->finished = 1;
2128 return NULL;
2129 }
2130
2131 static void free_input_threads(void)
2132 {
2133 int i;
2134
2135 if (nb_input_files == 1)
2136 return;
2137
2138 transcoding_finished = 1;
2139
2140 for (i = 0; i < nb_input_files; i++) {
2141 InputFile *f = input_files[i];
2142 AVPacket pkt;
2143
2144 if (!f->fifo || f->joined)
2145 continue;
2146
2147 pthread_mutex_lock(&f->fifo_lock);
2148 while (av_fifo_size(f->fifo)) {
2149 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2150 av_free_packet(&pkt);
2151 }
2152 pthread_cond_signal(&f->fifo_cond);
2153 pthread_mutex_unlock(&f->fifo_lock);
2154
2155 pthread_join(f->thread, NULL);
2156 f->joined = 1;
2157
2158 while (av_fifo_size(f->fifo)) {
2159 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2160 av_free_packet(&pkt);
2161 }
2162 av_fifo_free(f->fifo);
2163 }
2164 }
2165
2166 static int init_input_threads(void)
2167 {
2168 int i, ret;
2169
2170 if (nb_input_files == 1)
2171 return 0;
2172
2173 for (i = 0; i < nb_input_files; i++) {
2174 InputFile *f = input_files[i];
2175
2176 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2177 return AVERROR(ENOMEM);
2178
2179 pthread_mutex_init(&f->fifo_lock, NULL);
2180 pthread_cond_init (&f->fifo_cond, NULL);
2181
2182 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2183 return AVERROR(ret);
2184 }
2185 return 0;
2186 }
2187
2188 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2189 {
2190 int ret = 0;
2191
2192 pthread_mutex_lock(&f->fifo_lock);
2193
2194 if (av_fifo_size(f->fifo)) {
2195 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2196 pthread_cond_signal(&f->fifo_cond);
2197 } else {
2198 if (f->finished)
2199 ret = AVERROR_EOF;
2200 else
2201 ret = AVERROR(EAGAIN);
2202 }
2203
2204 pthread_mutex_unlock(&f->fifo_lock);
2205
2206 return ret;
2207 }
2208 #endif
2209
2210 static int get_input_packet(InputFile *f, AVPacket *pkt)
2211 {
2212 if (f->rate_emu) {
2213 int i;
2214 for (i = 0; i < f->nb_streams; i++) {
2215 InputStream *ist = input_streams[f->ist_index + i];
2216 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2217 int64_t now = av_gettime() - ist->start;
2218 if (pts > now)
2219 return AVERROR(EAGAIN);
2220 }
2221 }
2222
2223 #if HAVE_PTHREADS
2224 if (nb_input_files > 1)
2225 return get_input_packet_mt(f, pkt);
2226 #endif
2227 return av_read_frame(f->ctx, pkt);
2228 }
2229
2230 static int got_eagain(void)
2231 {
2232 int i;
2233 for (i = 0; i < nb_input_files; i++)
2234 if (input_files[i]->eagain)
2235 return 1;
2236 return 0;
2237 }
2238
2239 static void reset_eagain(void)
2240 {
2241 int i;
2242 for (i = 0; i < nb_input_files; i++)
2243 input_files[i]->eagain = 0;
2244 }
2245
2246 /*
2247 * Read one packet from an input file and send it for
2248 * - decoding -> lavfi (audio/video)
2249 * - decoding -> encoding -> muxing (subtitles)
2250 * - muxing (streamcopy)
2251 *
2252 * Return
2253 * - 0 -- one packet was read and processed
2254 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2255 * this function should be called again
2256 * - AVERROR_EOF -- this function should not be called again
2257 */
2258 static int process_input(void)
2259 {
2260 InputFile *ifile;
2261 AVFormatContext *is;
2262 InputStream *ist;
2263 AVPacket pkt;
2264 int ret, i, j;
2265
2266 /* select the stream that we must read now */
2267 ifile = select_input_file();
2268 /* if none, if is finished */
2269 if (!ifile) {
2270 if (got_eagain()) {
2271 reset_eagain();
2272 av_usleep(10000);
2273 return AVERROR(EAGAIN);
2274 }
2275 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2276 return AVERROR_EOF;
2277 }
2278
2279 is = ifile->ctx;
2280 ret = get_input_packet(ifile, &pkt);
2281
2282 if (ret == AVERROR(EAGAIN)) {
2283 ifile->eagain = 1;
2284 return ret;
2285 }
2286 if (ret < 0) {
2287 if (ret != AVERROR_EOF) {
2288 print_error(is->filename, ret);
2289 if (exit_on_error)
2290 exit_program(1);
2291 }
2292 ifile->eof_reached = 1;
2293
2294 for (i = 0; i < ifile->nb_streams; i++) {
2295 ist = input_streams[ifile->ist_index + i];
2296 if (ist->decoding_needed)
2297 output_packet(ist, NULL);
2298
2299 /* mark all outputs that don't go through lavfi as finished */
2300 for (j = 0; j < nb_output_streams; j++) {
2301 OutputStream *ost = output_streams[j];
2302
2303 if (ost->source_index == ifile->ist_index + i &&
2304 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2305 ost->finished= 1;
2306 }
2307 }
2308
2309 return AVERROR(EAGAIN);
2310 }
2311
2312 reset_eagain();
2313
2314 if (do_pkt_dump) {
2315 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2316 is->streams[pkt.stream_index]);
2317 }
2318 /* the following test is needed in case new streams appear
2319 dynamically in stream : we ignore them */
2320 if (pkt.stream_index >= ifile->nb_streams)
2321 goto discard_packet;
2322
2323 ist = input_streams[ifile->ist_index + pkt.stream_index];
2324
2325 ist->data_size += pkt.size;
2326 ist->nb_packets++;
2327
2328 if (ist->discard)
2329 goto discard_packet;
2330
2331 /* add the stream-global side data to the first packet */
2332 if (ist->nb_packets == 1)
2333 for (i = 0; i < ist->st->nb_side_data; i++) {
2334 AVPacketSideData *src_sd = &ist->st->side_data[i];
2335 uint8_t *dst_data;
2336
2337 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2338 continue;
2339
2340 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2341 if (!dst_data)
2342 exit_program(1);
2343
2344 memcpy(dst_data, src_sd->data, src_sd->size);
2345 }
2346
2347 if (pkt.dts != AV_NOPTS_VALUE)
2348 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2349 if (pkt.pts != AV_NOPTS_VALUE)
2350 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2351
2352 if (pkt.pts != AV_NOPTS_VALUE)
2353 pkt.pts *= ist->ts_scale;
2354 if (pkt.dts != AV_NOPTS_VALUE)
2355 pkt.dts *= ist->ts_scale;
2356
2357 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2358 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2359 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2360 int64_t delta = pkt_dts - ist->next_dts;
2361
2362 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2363 ifile->ts_offset -= delta;
2364 av_log(NULL, AV_LOG_DEBUG,
2365 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2366 delta, ifile->ts_offset);
2367 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2368 if (pkt.pts != AV_NOPTS_VALUE)
2369 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2370 }
2371 }
2372
2373 ret = output_packet(ist, &pkt);
2374 if (ret < 0) {
2375 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2376 ist->file_index, ist->st->index);
2377 if (exit_on_error)
2378 exit_program(1);
2379 }
2380
2381 discard_packet:
2382 av_free_packet(&pkt);
2383
2384 return 0;
2385 }
2386
2387 /*
2388 * The following code is the main loop of the file converter
2389 */
2390 static int transcode(void)
2391 {
2392 int ret, i, need_input = 1;
2393 AVFormatContext *os;
2394 OutputStream *ost;
2395 InputStream *ist;
2396 int64_t timer_start;
2397
2398 ret = transcode_init();
2399 if (ret < 0)
2400 goto fail;
2401
2402 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2403 term_init();
2404
2405 timer_start = av_gettime();
2406
2407 #if HAVE_PTHREADS
2408 if ((ret = init_input_threads()) < 0)
2409 goto fail;
2410 #endif
2411
2412 while (!received_sigterm) {
2413 /* check if there's any stream where output is still needed */
2414 if (!need_output()) {
2415 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2416 break;
2417 }
2418
2419 /* read and process one input packet if needed */
2420 if (need_input) {
2421 ret = process_input();
2422 if (ret == AVERROR_EOF)
2423 need_input = 0;
2424 }
2425
2426 ret = poll_filters();
2427 if (ret < 0) {
2428 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2429 continue;
2430
2431 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2432 break;
2433 }
2434
2435 /* dump report by using the output first video and audio streams */
2436 print_report(0, timer_start);
2437 }
2438 #if HAVE_PTHREADS
2439 free_input_threads();
2440 #endif
2441
2442 /* at the end of stream, we must flush the decoder buffers */
2443 for (i = 0; i < nb_input_streams; i++) {
2444 ist = input_streams[i];
2445 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2446 output_packet(ist, NULL);
2447 }
2448 }
2449 poll_filters();
2450 flush_encoders();
2451
2452 term_exit();
2453
2454 /* write the trailer if needed and close file */
2455 for (i = 0; i < nb_output_files; i++) {
2456 os = output_files[i]->ctx;
2457 av_write_trailer(os);
2458 }
2459
2460 /* dump report by using the first video and audio streams */
2461 print_report(1, timer_start);
2462
2463 /* close each encoder */
2464 for (i = 0; i < nb_output_streams; i++) {
2465 ost = output_streams[i];
2466 if (ost->encoding_needed) {
2467 av_freep(&ost->st->codec->stats_in);
2468 avcodec_close(ost->st->codec);
2469 }
2470 }
2471
2472 /* close each decoder */
2473 for (i = 0; i < nb_input_streams; i++) {
2474 ist = input_streams[i];
2475 if (ist->decoding_needed) {
2476 avcodec_close(ist->st->codec);
2477 if (ist->hwaccel_uninit)
2478 ist->hwaccel_uninit(ist->st->codec);
2479 }
2480 }
2481
2482 /* finished ! */
2483 ret = 0;
2484
2485 fail:
2486 #if HAVE_PTHREADS
2487 free_input_threads();
2488 #endif
2489
2490 if (output_streams) {
2491 for (i = 0; i < nb_output_streams; i++) {
2492 ost = output_streams[i];
2493 if (ost) {
2494 if (ost->stream_copy)
2495 av_freep(&ost->st->codec->extradata);
2496 if (ost->logfile) {
2497 fclose(ost->logfile);
2498 ost->logfile = NULL;
2499 }
2500 av_freep(&ost->st->codec->subtitle_header);
2501 av_free(ost->forced_kf_pts);
2502 av_dict_free(&ost->opts);
2503 av_dict_free(&ost->resample_opts);
2504 }
2505 }
2506 }
2507 return ret;
2508 }
2509
2510 static int64_t getutime(void)
2511 {
2512 #if HAVE_GETRUSAGE
2513 struct rusage rusage;
2514
2515 getrusage(RUSAGE_SELF, &rusage);
2516 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2517 #elif HAVE_GETPROCESSTIMES
2518 HANDLE proc;
2519 FILETIME c, e, k, u;
2520 proc = GetCurrentProcess();
2521 GetProcessTimes(proc, &c, &e, &k, &u);
2522 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2523 #else
2524 return av_gettime();
2525 #endif
2526 }
2527
2528 static int64_t getmaxrss(void)
2529 {
2530 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2531 struct rusage rusage;
2532 getrusage(RUSAGE_SELF, &rusage);
2533 return (int64_t)rusage.ru_maxrss * 1024;
2534 #elif HAVE_GETPROCESSMEMORYINFO
2535 HANDLE proc;
2536 PROCESS_MEMORY_COUNTERS memcounters;
2537 proc = GetCurrentProcess();
2538 memcounters.cb = sizeof(memcounters);
2539 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2540 return memcounters.PeakPagefileUsage;
2541 #else
2542 return 0;
2543 #endif
2544 }
2545
2546 int main(int argc, char **argv)
2547 {
2548 int ret;
2549 int64_t ti;
2550
2551 register_exit(avconv_cleanup);
2552
2553 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2554 parse_loglevel(argc, argv, options);
2555
2556 avcodec_register_all();
2557 #if CONFIG_AVDEVICE
2558 avdevice_register_all();
2559 #endif
2560 avfilter_register_all();
2561 av_register_all();
2562 avformat_network_init();
2563
2564 show_banner();
2565
2566 /* parse options and open all input/output files */
2567 ret = avconv_parse_options(argc, argv);
2568 if (ret < 0)
2569 exit_program(1);
2570
2571 if (nb_output_files <= 0 && nb_input_files == 0) {
2572 show_usage();
2573 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2574 exit_program(1);
2575 }
2576
2577 /* file converter / grab */
2578 if (nb_output_files <= 0) {
2579 fprintf(stderr, "At least one output file must be specified\n");
2580 exit_program(1);
2581 }
2582
2583 ti = getutime();
2584 if (transcode() < 0)
2585 exit_program(1);
2586 ti = getutime() - ti;
2587 if (do_benchmark) {
2588 int maxrss = getmaxrss() / 1024;
2589 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
2590 }
2591
2592 exit_program(0);
2593 return 0;
2594 }