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