2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libswresample/swresample.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/audioconvert.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/samplefmt.h"
49 #include "libavutil/colorspace.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/intreadwrite.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/mathematics.h"
54 #include "libavutil/pixdesc.h"
55 #include "libavutil/avstring.h"
56 #include "libavutil/libm.h"
57 #include "libavutil/imgutils.h"
58 #include "libavutil/timestamp.h"
59 #include "libavutil/bprint.h"
60 #include "libavutil/time.h"
61 #include "libavformat/os_support.h"
63 #include "libavformat/ffm.h" // not public API
65 # include "libavfilter/avcodec.h"
66 # include "libavfilter/avfilter.h"
67 # include "libavfilter/avfiltergraph.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size);
113 static int64_t getutime(void);
115 static int run_as_daemon = 0;
116 static int64_t video_size = 0;
117 static int64_t audio_size = 0;
118 static int64_t subtitle_size = 0;
119 static int64_t extra_size = 0;
120 static int nb_frames_dup = 0;
121 static int nb_frames_drop = 0;
123 static int current_time;
124 AVIOContext *progress_avio = NULL;
126 static uint8_t *subtitle_out;
129 /* signal to input threads that they should exit; set by the main thread */
130 static int transcoding_finished;
133 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
135 InputStream **input_streams = NULL;
136 int nb_input_streams = 0;
137 InputFile **input_files = NULL;
138 int nb_input_files = 0;
140 OutputStream **output_streams = NULL;
141 int nb_output_streams = 0;
142 OutputFile **output_files = NULL;
143 int nb_output_files = 0;
145 FilterGraph **filtergraphs;
150 /* init terminal so that we can grab keys */
151 static struct termios oldtty;
152 static int restore_tty;
157 Convert subtitles to video with alpha to insert them in filter graphs.
158 This is a temporary solution until libavfilter gets real subtitles support.
163 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
166 uint32_t *pal, *dst2;
170 if (r->type != SUBTITLE_BITMAP) {
171 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
174 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
175 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
179 dst += r->y * dst_linesize + r->x * 4;
180 src = r->pict.data[0];
181 pal = (uint32_t *)r->pict.data[1];
182 for (y = 0; y < r->h; y++) {
183 dst2 = (uint32_t *)dst;
185 for (x = 0; x < r->w; x++)
186 *(dst2++) = pal[*(src2++)];
188 src += r->pict.linesize[0];
192 static void sub2video_push_ref(InputStream *ist, int64_t pts)
194 AVFilterBufferRef *ref = ist->sub2video.ref;
197 ist->sub2video.last_pts = ref->pts = pts;
198 for (i = 0; i < ist->nb_filters; i++)
199 av_buffersrc_add_ref(ist->filters[i]->filter,
200 avfilter_ref_buffer(ref, ~0),
201 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
202 AV_BUFFERSRC_FLAG_NO_COPY |
203 AV_BUFFERSRC_FLAG_PUSH);
206 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
208 int w = ist->sub2video.w, h = ist->sub2video.h;
209 AVFilterBufferRef *ref = ist->sub2video.ref;
213 int64_t pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ist->st->time_base);
218 dst_linesize = ref->linesize[0];
219 memset(dst, 0, h * dst_linesize);
220 for (i = 0; i < sub->num_rects; i++)
221 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
222 sub2video_push_ref(ist, pts);
225 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
227 InputFile *infile = input_files[ist->file_index];
231 /* When a frame is read from a file, examine all sub2video streams in
232 the same file and send the sub2video frame again. Otherwise, decoded
233 video frames could be accumulating in the filter graph while a filter
234 (possibly overlay) is desperately waiting for a subtitle frame. */
235 for (i = 0; i < infile->nb_streams; i++) {
236 InputStream *ist2 = input_streams[infile->ist_index + i];
237 if (!ist2->sub2video.ref)
239 /* subtitles seem to be usually muxed ahead of other streams;
240 if not, substracting a larger time here is necessary */
241 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
242 /* do not send the heartbeat frame if the subtitle is already ahead */
243 if (pts2 <= ist2->sub2video.last_pts)
245 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
246 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
248 sub2video_push_ref(ist2, pts2);
252 static void sub2video_flush(InputStream *ist)
256 for (i = 0; i < ist->nb_filters; i++)
257 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
260 /* end of sub2video hack */
264 av_log(NULL, AV_LOG_QUIET, "%s", "");
267 tcsetattr (0, TCSANOW, &oldtty);
271 static volatile int received_sigterm = 0;
272 static volatile int received_nb_signals = 0;
275 sigterm_handler(int sig)
277 received_sigterm = sig;
278 received_nb_signals++;
280 if(received_nb_signals > 3)
291 istty = isatty(0) && isatty(2);
293 if (istty && tcgetattr (0, &tty) == 0) {
298 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
299 |INLCR|IGNCR|ICRNL|IXON);
300 tty.c_oflag |= OPOST;
301 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
302 tty.c_cflag &= ~(CSIZE|PARENB);
307 tcsetattr (0, TCSANOW, &tty);
309 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
312 avformat_network_deinit();
314 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
315 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
317 signal(SIGXCPU, sigterm_handler);
321 /* read a key without blocking */
322 static int read_key(void)
334 n = select(1, &rfds, NULL, NULL, &tv);
343 # if HAVE_PEEKNAMEDPIPE
345 static HANDLE input_handle;
348 input_handle = GetStdHandle(STD_INPUT_HANDLE);
349 is_pipe = !GetConsoleMode(input_handle, &dw);
352 if (stdin->_cnt > 0) {
357 /* When running under a GUI, you will end here. */
358 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
375 static int decode_interrupt_cb(void *ctx)
377 return received_nb_signals > 1;
380 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
382 static void exit_program(void)
386 for (i = 0; i < nb_filtergraphs; i++) {
387 avfilter_graph_free(&filtergraphs[i]->graph);
388 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
389 av_freep(&filtergraphs[i]->inputs[j]->name);
390 av_freep(&filtergraphs[i]->inputs[j]);
392 av_freep(&filtergraphs[i]->inputs);
393 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
394 av_freep(&filtergraphs[i]->outputs[j]->name);
395 av_freep(&filtergraphs[i]->outputs[j]);
397 av_freep(&filtergraphs[i]->outputs);
398 av_freep(&filtergraphs[i]);
400 av_freep(&filtergraphs);
402 av_freep(&subtitle_out);
405 for (i = 0; i < nb_output_files; i++) {
406 AVFormatContext *s = output_files[i]->ctx;
407 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
409 avformat_free_context(s);
410 av_dict_free(&output_files[i]->opts);
411 av_freep(&output_files[i]);
413 for (i = 0; i < nb_output_streams; i++) {
414 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
416 AVBitStreamFilterContext *next = bsfc->next;
417 av_bitstream_filter_close(bsfc);
420 output_streams[i]->bitstream_filters = NULL;
421 avcodec_free_frame(&output_streams[i]->filtered_frame);
423 av_freep(&output_streams[i]->forced_keyframes);
424 av_freep(&output_streams[i]->avfilter);
425 av_freep(&output_streams[i]->logfile_prefix);
426 av_freep(&output_streams[i]);
428 for (i = 0; i < nb_input_files; i++) {
429 avformat_close_input(&input_files[i]->ctx);
430 av_freep(&input_files[i]);
432 for (i = 0; i < nb_input_streams; i++) {
433 avcodec_free_frame(&input_streams[i]->decoded_frame);
434 av_dict_free(&input_streams[i]->opts);
435 free_buffer_pool(&input_streams[i]->buffer_pool);
436 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
437 av_freep(&input_streams[i]->filters);
438 av_freep(&input_streams[i]);
443 av_free(vstats_filename);
445 av_freep(&input_streams);
446 av_freep(&input_files);
447 av_freep(&output_streams);
448 av_freep(&output_files);
453 avformat_network_deinit();
455 if (received_sigterm) {
456 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
457 (int) received_sigterm);
462 void assert_avoptions(AVDictionary *m)
464 AVDictionaryEntry *t;
465 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
466 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
471 static void abort_codec_experimental(AVCodec *c, int encoder)
476 static void update_benchmark(const char *fmt, ...)
478 if (do_benchmark_all) {
479 int64_t t = getutime();
485 vsnprintf(buf, sizeof(buf), fmt, va);
487 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
493 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
495 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
496 AVCodecContext *avctx = ost->st->codec;
499 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
500 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
501 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
503 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
504 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
505 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
506 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
507 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
508 if(pkt->pts >= pkt->dts)
509 pkt->pts = FFMAX(pkt->pts, max);
515 * Audio encoders may split the packets -- #frames in != #packets out.
516 * But there is no reordering, so we can limit the number of output packets
517 * by simply dropping them here.
518 * Counting encoded video frames needs to be done separately because of
519 * reordering, see do_video_out()
521 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
522 if (ost->frame_number >= ost->max_frames) {
530 AVPacket new_pkt = *pkt;
531 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
532 &new_pkt.data, &new_pkt.size,
533 pkt->data, pkt->size,
534 pkt->flags & AV_PKT_FLAG_KEY);
535 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
536 uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
538 memcpy(t, new_pkt.data, new_pkt.size);
539 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
547 new_pkt.destruct = av_destruct_packet;
549 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
550 bsfc->filter->name, pkt->stream_index,
551 avctx->codec ? avctx->codec->name : "copy");
561 pkt->stream_index = ost->index;
564 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
565 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
566 av_get_media_type_string(ost->st->codec->codec_type),
567 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
568 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
573 ret = av_interleaved_write_frame(s, pkt);
575 print_error("av_interleaved_write_frame()", ret);
580 static void close_output_stream(OutputStream *ost)
582 OutputFile *of = output_files[ost->file_index];
587 for (i = 0; i < of->ctx->nb_streams; i++)
588 output_streams[of->ost_index + i]->finished = 1;
592 static int check_recording_time(OutputStream *ost)
594 OutputFile *of = output_files[ost->file_index];
596 if (of->recording_time != INT64_MAX &&
597 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
598 AV_TIME_BASE_Q) >= 0) {
599 close_output_stream(ost);
605 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
608 AVCodecContext *enc = ost->st->codec;
612 av_init_packet(&pkt);
616 if (!check_recording_time(ost))
619 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
620 frame->pts = ost->sync_opts;
621 ost->sync_opts = frame->pts + frame->nb_samples;
623 av_assert0(pkt.size || !pkt.data);
624 update_benchmark(NULL);
625 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
626 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
629 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
632 if (pkt.pts != AV_NOPTS_VALUE)
633 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
634 if (pkt.dts != AV_NOPTS_VALUE)
635 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
636 if (pkt.duration > 0)
637 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
640 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
641 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
642 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
643 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
646 audio_size += pkt.size;
647 write_frame(s, &pkt, ost);
649 av_free_packet(&pkt);
653 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
657 AVPicture picture_tmp;
660 dec = ist->st->codec;
662 /* deinterlace : must be done before any resize */
663 if (do_deinterlace) {
666 /* create temporary picture */
667 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
670 buf = av_malloc(size);
674 picture2 = &picture_tmp;
675 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
677 if (avpicture_deinterlace(picture2, picture,
678 dec->pix_fmt, dec->width, dec->height) < 0) {
679 /* if error, do not deinterlace */
680 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
689 if (picture != picture2)
690 *picture = *picture2;
694 static void do_subtitle_out(AVFormatContext *s,
699 int subtitle_out_max_size = 1024 * 1024;
700 int subtitle_out_size, nb, i;
705 if (sub->pts == AV_NOPTS_VALUE) {
706 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
712 enc = ost->st->codec;
715 subtitle_out = av_malloc(subtitle_out_max_size);
718 /* Note: DVB subtitle need one packet to draw them and one other
719 packet to clear them */
720 /* XXX: signal it in the codec context ? */
721 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
726 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
727 pts = sub->pts - output_files[ost->file_index]->start_time;
728 for (i = 0; i < nb; i++) {
729 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
730 if (!check_recording_time(ost))
734 // start_display_time is required to be 0
735 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
736 sub->end_display_time -= sub->start_display_time;
737 sub->start_display_time = 0;
740 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
741 subtitle_out_max_size, sub);
742 if (subtitle_out_size < 0) {
743 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
747 av_init_packet(&pkt);
748 pkt.data = subtitle_out;
749 pkt.size = subtitle_out_size;
750 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
751 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
752 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
753 /* XXX: the pts correction is handled here. Maybe handling
754 it in the codec would be better */
756 pkt.pts += 90 * sub->start_display_time;
758 pkt.pts += 90 * sub->end_display_time;
760 subtitle_size += pkt.size;
761 write_frame(s, &pkt, ost);
765 static void do_video_out(AVFormatContext *s,
769 int ret, format_video_sync;
771 AVCodecContext *enc = ost->st->codec;
773 double sync_ipts, delta;
776 InputStream *ist = NULL;
778 if (ost->source_index >= 0)
779 ist = input_streams[ost->source_index];
781 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
782 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
784 sync_ipts = in_picture->pts;
785 delta = sync_ipts - ost->sync_opts + duration;
787 /* by default, we output a single frame */
790 format_video_sync = video_sync_method;
791 if (format_video_sync == VSYNC_AUTO)
792 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
794 switch (format_video_sync) {
796 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
799 else if (delta > 1.1)
800 nb_frames = lrintf(delta);
805 else if (delta > 0.6)
806 ost->sync_opts = lrint(sync_ipts);
809 case VSYNC_PASSTHROUGH:
810 ost->sync_opts = lrint(sync_ipts);
816 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
817 if (nb_frames == 0) {
819 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
821 } else if (nb_frames > 1) {
822 if (nb_frames > dts_error_threshold * 30) {
823 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
827 nb_frames_dup += nb_frames - 1;
828 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
831 /* duplicates frame if needed */
832 for (i = 0; i < nb_frames; i++) {
833 av_init_packet(&pkt);
837 in_picture->pts = ost->sync_opts;
839 if (!check_recording_time(ost))
842 if (s->oformat->flags & AVFMT_RAWPICTURE &&
843 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
844 /* raw pictures are written as AVPicture structure to
845 avoid any copies. We support temporarily the older
847 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
848 enc->coded_frame->top_field_first = in_picture->top_field_first;
849 pkt.data = (uint8_t *)in_picture;
850 pkt.size = sizeof(AVPicture);
851 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
852 pkt.flags |= AV_PKT_FLAG_KEY;
854 video_size += pkt.size;
855 write_frame(s, &pkt, ost);
860 big_picture = *in_picture;
861 /* better than nothing: use input picture interlaced
863 big_picture.interlaced_frame = in_picture->interlaced_frame;
864 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
865 if (ost->top_field_first == -1)
866 big_picture.top_field_first = in_picture->top_field_first;
868 big_picture.top_field_first = !!ost->top_field_first;
871 big_picture.quality = ost->st->codec->global_quality;
872 if (!enc->me_threshold)
873 big_picture.pict_type = 0;
874 if (ost->forced_kf_index < ost->forced_kf_count &&
875 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
876 big_picture.pict_type = AV_PICTURE_TYPE_I;
877 ost->forced_kf_index++;
879 update_benchmark(NULL);
880 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
881 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
883 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
888 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
889 pkt.pts = ost->sync_opts;
891 if (pkt.pts != AV_NOPTS_VALUE)
892 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
893 if (pkt.dts != AV_NOPTS_VALUE)
894 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
897 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
898 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
899 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
900 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
903 frame_size = pkt.size;
904 video_size += pkt.size;
905 write_frame(s, &pkt, ost);
906 av_free_packet(&pkt);
908 /* if two pass, output log */
909 if (ost->logfile && enc->stats_out) {
910 fprintf(ost->logfile, "%s", enc->stats_out);
916 * For video, number of frames in == number of packets out.
917 * But there may be reordering, so we can't throw away frames on encoder
918 * flush, we need to limit them here, before they go into encoder.
923 if (vstats_filename && frame_size)
924 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
927 static double psnr(double d)
929 return -10.0 * log(d) / log(10.0);
932 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
937 double ti1, bitrate, avg_bitrate;
939 /* this is executed just the first time do_video_stats is called */
941 vstats_file = fopen(vstats_filename, "w");
948 enc = ost->st->codec;
949 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
950 frame_number = ost->frame_number;
951 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
952 if (enc->flags&CODEC_FLAG_PSNR)
953 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
955 fprintf(vstats_file,"f_size= %6d ", frame_size);
956 /* compute pts value */
957 ti1 = ost->sync_opts * av_q2d(enc->time_base);
961 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
962 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
963 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
964 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
965 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
970 * Get and encode new output from any of the filtergraphs, without causing
973 * @return 0 for success, <0 for severe errors
975 static int reap_filters(void)
977 AVFilterBufferRef *picref;
978 AVFrame *filtered_frame = NULL;
982 /* Reap all buffers present in the buffer sinks */
983 for (i = 0; i < nb_output_streams; i++) {
984 OutputStream *ost = output_streams[i];
985 OutputFile *of = output_files[ost->file_index];
991 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
992 return AVERROR(ENOMEM);
994 avcodec_get_frame_defaults(ost->filtered_frame);
995 filtered_frame = ost->filtered_frame;
998 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
999 AV_BUFFERSINK_FLAG_NO_REQUEST);
1001 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1003 av_strerror(ret, buf, sizeof(buf));
1004 av_log(NULL, AV_LOG_WARNING,
1005 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1009 frame_pts = AV_NOPTS_VALUE;
1010 if (picref->pts != AV_NOPTS_VALUE) {
1011 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1012 ost->filter->filter->inputs[0]->time_base,
1013 ost->st->codec->time_base) -
1014 av_rescale_q(of->start_time,
1016 ost->st->codec->time_base);
1018 if (of->start_time && filtered_frame->pts < 0) {
1019 avfilter_unref_buffer(picref);
1023 //if (ost->source_index >= 0)
1024 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1027 switch (ost->filter->filter->inputs[0]->type) {
1028 case AVMEDIA_TYPE_VIDEO:
1029 avfilter_copy_buf_props(filtered_frame, picref);
1030 filtered_frame->pts = frame_pts;
1031 if (!ost->frame_aspect_ratio)
1032 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1034 do_video_out(of->ctx, ost, filtered_frame);
1036 case AVMEDIA_TYPE_AUDIO:
1037 avfilter_copy_buf_props(filtered_frame, picref);
1038 filtered_frame->pts = frame_pts;
1039 do_audio_out(of->ctx, ost, filtered_frame);
1042 // TODO support subtitle filters
1046 avfilter_unref_buffer(picref);
1053 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1056 AVBPrint buf_script;
1058 AVFormatContext *oc;
1060 AVCodecContext *enc;
1061 int frame_number, vid, i;
1063 int64_t pts = INT64_MIN;
1064 static int64_t last_time = -1;
1065 static int qp_histogram[52];
1066 int hours, mins, secs, us;
1068 if (!print_stats && !is_last_report && !progress_avio)
1071 if (!is_last_report) {
1072 if (last_time == -1) {
1073 last_time = cur_time;
1076 if ((cur_time - last_time) < 500000)
1078 last_time = cur_time;
1082 oc = output_files[0]->ctx;
1084 total_size = avio_size(oc->pb);
1085 if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
1086 total_size = avio_tell(oc->pb);
1093 av_bprint_init(&buf_script, 0, 1);
1094 for (i = 0; i < nb_output_streams; i++) {
1096 ost = output_streams[i];
1097 enc = ost->st->codec;
1098 if (!ost->stream_copy && enc->coded_frame)
1099 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1100 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1101 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1102 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1103 ost->file_index, ost->index, q);
1105 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1106 float fps, t = (cur_time-timer_start) / 1000000.0;
1108 frame_number = ost->frame_number;
1109 fps = t > 1 ? frame_number / t : 0;
1110 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1111 frame_number, fps < 9.95, fps, q);
1112 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1113 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1114 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1115 ost->file_index, ost->index, q);
1117 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1121 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1123 for (j = 0; j < 32; j++)
1124 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1126 if (enc->flags&CODEC_FLAG_PSNR) {
1128 double error, error_sum = 0;
1129 double scale, scale_sum = 0;
1131 char type[3] = { 'Y','U','V' };
1132 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1133 for (j = 0; j < 3; j++) {
1134 if (is_last_report) {
1135 error = enc->error[j];
1136 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1138 error = enc->coded_frame->error[j];
1139 scale = enc->width * enc->height * 255.0 * 255.0;
1145 p = psnr(error / scale);
1146 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1147 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1148 ost->file_index, ost->index, type[i] | 32, p);
1150 p = psnr(error_sum / scale_sum);
1151 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1152 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1153 ost->file_index, ost->index, p);
1157 /* compute min output value */
1158 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1159 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1160 ost->st->time_base, AV_TIME_BASE_Q));
1163 secs = pts / AV_TIME_BASE;
1164 us = pts % AV_TIME_BASE;
1170 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1172 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1173 "size=%8.0fkB time=", total_size / 1024.0);
1174 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1175 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1176 (100 * us) / AV_TIME_BASE);
1177 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1178 "bitrate=%6.1fkbits/s", bitrate);
1179 av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1180 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1181 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1182 hours, mins, secs, us);
1184 if (nb_frames_dup || nb_frames_drop)
1185 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1186 nb_frames_dup, nb_frames_drop);
1187 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1188 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1190 if (print_stats || is_last_report) {
1191 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1196 if (progress_avio) {
1197 av_bprintf(&buf_script, "progress=%s\n",
1198 is_last_report ? "end" : "continue");
1199 avio_write(progress_avio, buf_script.str,
1200 FFMIN(buf_script.len, buf_script.size - 1));
1201 avio_flush(progress_avio);
1202 av_bprint_finalize(&buf_script, NULL);
1203 if (is_last_report) {
1204 avio_close(progress_avio);
1205 progress_avio = NULL;
1209 if (is_last_report) {
1210 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1211 av_log(NULL, AV_LOG_INFO, "\n");
1212 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1213 video_size / 1024.0,
1214 audio_size / 1024.0,
1215 subtitle_size / 1024.0,
1216 extra_size / 1024.0,
1217 100.0 * (total_size - raw) / raw
1219 if(video_size + audio_size + subtitle_size + extra_size == 0){
1220 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1225 static void flush_encoders(void)
1229 for (i = 0; i < nb_output_streams; i++) {
1230 OutputStream *ost = output_streams[i];
1231 AVCodecContext *enc = ost->st->codec;
1232 AVFormatContext *os = output_files[ost->file_index]->ctx;
1233 int stop_encoding = 0;
1235 if (!ost->encoding_needed)
1238 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1240 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1244 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1248 switch (ost->st->codec->codec_type) {
1249 case AVMEDIA_TYPE_AUDIO:
1250 encode = avcodec_encode_audio2;
1254 case AVMEDIA_TYPE_VIDEO:
1255 encode = avcodec_encode_video2;
1266 av_init_packet(&pkt);
1270 update_benchmark(NULL);
1271 ret = encode(enc, &pkt, NULL, &got_packet);
1272 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1274 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1278 if (ost->logfile && enc->stats_out) {
1279 fprintf(ost->logfile, "%s", enc->stats_out);
1285 if (pkt.pts != AV_NOPTS_VALUE)
1286 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1287 if (pkt.dts != AV_NOPTS_VALUE)
1288 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1289 write_frame(os, &pkt, ost);
1299 * Check whether a packet from ist should be written into ost at this time
1301 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1303 OutputFile *of = output_files[ost->file_index];
1304 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1306 if (ost->source_index != ist_index)
1309 if (of->start_time && ist->pts < of->start_time)
1315 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1317 OutputFile *of = output_files[ost->file_index];
1318 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1322 av_init_packet(&opkt);
1324 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1325 !ost->copy_initial_nonkeyframes)
1328 if (!ost->frame_number && ist->pts < of->start_time &&
1329 !ost->copy_prior_start)
1332 if (of->recording_time != INT64_MAX &&
1333 ist->pts >= of->recording_time + of->start_time) {
1334 close_output_stream(ost);
1338 /* force the input stream PTS */
1339 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1340 audio_size += pkt->size;
1341 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1342 video_size += pkt->size;
1344 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1345 subtitle_size += pkt->size;
1348 if (pkt->pts != AV_NOPTS_VALUE)
1349 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1351 opkt.pts = AV_NOPTS_VALUE;
1353 if (pkt->dts == AV_NOPTS_VALUE)
1354 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1356 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1357 opkt.dts -= ost_tb_start_time;
1359 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1360 opkt.flags = pkt->flags;
1362 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1363 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1364 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1365 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1366 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1368 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1369 opkt.destruct = av_destruct_packet;
1371 opkt.data = pkt->data;
1372 opkt.size = pkt->size;
1375 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1376 /* store AVPicture in AVPacket, as expected by the output format */
1377 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1378 opkt.data = (uint8_t *)&pict;
1379 opkt.size = sizeof(AVPicture);
1380 opkt.flags |= AV_PKT_FLAG_KEY;
1383 write_frame(of->ctx, &opkt, ost);
1384 ost->st->codec->frame_number++;
1385 av_free_packet(&opkt);
1388 static void rate_emu_sleep(InputStream *ist)
1390 if (input_files[ist->file_index]->rate_emu) {
1391 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1392 int64_t now = av_gettime() - ist->start;
1394 av_usleep(pts - now);
1398 int guess_input_channel_layout(InputStream *ist)
1400 AVCodecContext *dec = ist->st->codec;
1402 if (!dec->channel_layout) {
1403 char layout_name[256];
1405 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1406 if (!dec->channel_layout)
1408 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1409 dec->channels, dec->channel_layout);
1410 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1411 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1416 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1418 AVFrame *decoded_frame;
1419 AVCodecContext *avctx = ist->st->codec;
1420 int i, ret, resample_changed;
1421 AVRational decoded_frame_tb;
1423 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1424 return AVERROR(ENOMEM);
1426 avcodec_get_frame_defaults(ist->decoded_frame);
1427 decoded_frame = ist->decoded_frame;
1429 update_benchmark(NULL);
1430 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1431 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1433 if (ret >= 0 && avctx->sample_rate <= 0) {
1434 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1435 ret = AVERROR_INVALIDDATA;
1438 if (!*got_output || ret < 0) {
1440 for (i = 0; i < ist->nb_filters; i++)
1441 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1447 /* increment next_dts to use for the case where the input stream does not
1448 have timestamps or there are multiple frames in the packet */
1449 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1451 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1455 rate_emu_sleep(ist);
1457 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1458 ist->resample_channels != avctx->channels ||
1459 ist->resample_channel_layout != decoded_frame->channel_layout ||
1460 ist->resample_sample_rate != decoded_frame->sample_rate;
1461 if (resample_changed) {
1462 char layout1[64], layout2[64];
1464 if (!guess_input_channel_layout(ist)) {
1465 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1466 "layout for Input Stream #%d.%d\n", ist->file_index,
1470 decoded_frame->channel_layout = avctx->channel_layout;
1472 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1473 ist->resample_channel_layout);
1474 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1475 decoded_frame->channel_layout);
1477 av_log(NULL, AV_LOG_INFO,
1478 "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",
1479 ist->file_index, ist->st->index,
1480 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1481 ist->resample_channels, layout1,
1482 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1483 avctx->channels, layout2);
1485 ist->resample_sample_fmt = decoded_frame->format;
1486 ist->resample_sample_rate = decoded_frame->sample_rate;
1487 ist->resample_channel_layout = decoded_frame->channel_layout;
1488 ist->resample_channels = avctx->channels;
1490 for (i = 0; i < nb_filtergraphs; i++)
1491 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1492 FilterGraph *fg = filtergraphs[i];
1494 if (configure_filtergraph(fg) < 0) {
1495 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1498 for (j = 0; j < fg->nb_outputs; j++) {
1499 OutputStream *ost = fg->outputs[j]->ost;
1500 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1501 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1502 av_buffersink_set_frame_size(ost->filter->filter,
1503 ost->st->codec->frame_size);
1508 /* if the decoder provides a pts, use it instead of the last packet pts.
1509 the decoder could be delaying output by a packet or more. */
1510 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1511 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1512 decoded_frame_tb = avctx->time_base;
1513 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1514 decoded_frame->pts = decoded_frame->pkt_pts;
1515 pkt->pts = AV_NOPTS_VALUE;
1516 decoded_frame_tb = ist->st->time_base;
1517 } else if (pkt->pts != AV_NOPTS_VALUE) {
1518 decoded_frame->pts = pkt->pts;
1519 pkt->pts = AV_NOPTS_VALUE;
1520 decoded_frame_tb = ist->st->time_base;
1522 decoded_frame->pts = ist->dts;
1523 decoded_frame_tb = AV_TIME_BASE_Q;
1525 if (decoded_frame->pts != AV_NOPTS_VALUE)
1526 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1528 (AVRational){1, ist->st->codec->sample_rate});
1529 for (i = 0; i < ist->nb_filters; i++)
1530 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1531 AV_BUFFERSRC_FLAG_PUSH);
1533 decoded_frame->pts = AV_NOPTS_VALUE;
1538 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1540 AVFrame *decoded_frame;
1541 void *buffer_to_free = NULL;
1542 int i, ret = 0, resample_changed;
1543 int64_t best_effort_timestamp;
1544 AVRational *frame_sample_aspect;
1546 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1547 return AVERROR(ENOMEM);
1549 avcodec_get_frame_defaults(ist->decoded_frame);
1550 decoded_frame = ist->decoded_frame;
1551 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1553 update_benchmark(NULL);
1554 ret = avcodec_decode_video2(ist->st->codec,
1555 decoded_frame, got_output, pkt);
1556 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1557 if (!*got_output || ret < 0) {
1559 for (i = 0; i < ist->nb_filters; i++)
1560 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1565 if(ist->top_field_first>=0)
1566 decoded_frame->top_field_first = ist->top_field_first;
1568 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1569 if(best_effort_timestamp != AV_NOPTS_VALUE)
1570 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1573 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1574 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1575 ist->st->index, av_ts2str(decoded_frame->pts),
1576 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1577 best_effort_timestamp,
1578 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1579 decoded_frame->key_frame, decoded_frame->pict_type);
1583 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1585 rate_emu_sleep(ist);
1587 if (ist->st->sample_aspect_ratio.num)
1588 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1590 resample_changed = ist->resample_width != decoded_frame->width ||
1591 ist->resample_height != decoded_frame->height ||
1592 ist->resample_pix_fmt != decoded_frame->format;
1593 if (resample_changed) {
1594 av_log(NULL, AV_LOG_INFO,
1595 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1596 ist->file_index, ist->st->index,
1597 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1598 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1600 ist->resample_width = decoded_frame->width;
1601 ist->resample_height = decoded_frame->height;
1602 ist->resample_pix_fmt = decoded_frame->format;
1604 for (i = 0; i < nb_filtergraphs; i++) {
1605 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1606 configure_filtergraph(filtergraphs[i]) < 0) {
1607 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1613 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1614 for (i = 0; i < ist->nb_filters; i++) {
1615 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1616 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1617 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1619 if (!frame_sample_aspect->num)
1620 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1621 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1622 FrameBuffer *buf = decoded_frame->opaque;
1623 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1624 decoded_frame->data, decoded_frame->linesize,
1625 AV_PERM_READ | AV_PERM_PRESERVE,
1626 ist->st->codec->width, ist->st->codec->height,
1627 ist->st->codec->pix_fmt);
1629 avfilter_copy_frame_props(fb, decoded_frame);
1630 fb->buf->priv = buf;
1631 fb->buf->free = filter_release_buffer;
1633 av_assert0(buf->refcount>0);
1635 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1636 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1637 AV_BUFFERSRC_FLAG_NO_COPY |
1638 AV_BUFFERSRC_FLAG_PUSH);
1640 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1641 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1647 av_free(buffer_to_free);
1651 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1653 AVSubtitle subtitle;
1654 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1655 &subtitle, got_output, pkt);
1656 if (ret < 0 || !*got_output) {
1658 sub2video_flush(ist);
1662 if (ist->fix_sub_duration) {
1663 if (ist->prev_sub.got_output) {
1664 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1665 1000, AV_TIME_BASE);
1666 if (end < ist->prev_sub.subtitle.end_display_time) {
1667 av_log(ist->st->codec, AV_LOG_DEBUG,
1668 "Subtitle duration reduced from %d to %d\n",
1669 ist->prev_sub.subtitle.end_display_time, end);
1670 ist->prev_sub.subtitle.end_display_time = end;
1673 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1674 FFSWAP(int, ret, ist->prev_sub.ret);
1675 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1678 sub2video_update(ist, &subtitle);
1680 if (!*got_output || !subtitle.num_rects)
1683 rate_emu_sleep(ist);
1685 for (i = 0; i < nb_output_streams; i++) {
1686 OutputStream *ost = output_streams[i];
1688 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1691 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1694 avsubtitle_free(&subtitle);
1698 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1699 static int output_packet(InputStream *ist, const AVPacket *pkt)
1705 if (!ist->saw_first_ts) {
1706 ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1708 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1709 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1710 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1712 ist->saw_first_ts = 1;
1715 if (ist->next_dts == AV_NOPTS_VALUE)
1716 ist->next_dts = ist->dts;
1717 if (ist->next_pts == AV_NOPTS_VALUE)
1718 ist->next_pts = ist->pts;
1722 av_init_packet(&avpkt);
1730 if (pkt->dts != AV_NOPTS_VALUE) {
1731 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1732 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1733 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1736 // while we have more to decode or while the decoder did output something on EOF
1737 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1741 ist->pts = ist->next_pts;
1742 ist->dts = ist->next_dts;
1744 if (avpkt.size && avpkt.size != pkt->size) {
1745 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1746 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1747 ist->showed_multi_packet_warning = 1;
1750 switch (ist->st->codec->codec_type) {
1751 case AVMEDIA_TYPE_AUDIO:
1752 ret = decode_audio (ist, &avpkt, &got_output);
1754 case AVMEDIA_TYPE_VIDEO:
1755 ret = decode_video (ist, &avpkt, &got_output);
1756 if (avpkt.duration) {
1757 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1758 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1759 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1760 duration = ((int64_t)AV_TIME_BASE *
1761 ist->st->codec->time_base.num * ticks) /
1762 ist->st->codec->time_base.den;
1766 if(ist->dts != AV_NOPTS_VALUE && duration) {
1767 ist->next_dts += duration;
1769 ist->next_dts = AV_NOPTS_VALUE;
1772 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1774 case AVMEDIA_TYPE_SUBTITLE:
1775 ret = transcode_subtitles(ist, &avpkt, &got_output);
1785 avpkt.pts= AV_NOPTS_VALUE;
1787 // touch data and size only if not EOF
1789 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1799 /* handle stream copy */
1800 if (!ist->decoding_needed) {
1801 rate_emu_sleep(ist);
1802 ist->dts = ist->next_dts;
1803 switch (ist->st->codec->codec_type) {
1804 case AVMEDIA_TYPE_AUDIO:
1805 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1806 ist->st->codec->sample_rate;
1808 case AVMEDIA_TYPE_VIDEO:
1809 if (pkt->duration) {
1810 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1811 } else if(ist->st->codec->time_base.num != 0) {
1812 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1813 ist->next_dts += ((int64_t)AV_TIME_BASE *
1814 ist->st->codec->time_base.num * ticks) /
1815 ist->st->codec->time_base.den;
1819 ist->pts = ist->dts;
1820 ist->next_pts = ist->next_dts;
1822 for (i = 0; pkt && i < nb_output_streams; i++) {
1823 OutputStream *ost = output_streams[i];
1825 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1828 do_streamcopy(ist, ost, pkt);
1834 static void print_sdp(void)
1838 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1842 for (i = 0; i < nb_output_files; i++)
1843 avc[i] = output_files[i]->ctx;
1845 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1846 printf("SDP:\n%s\n", sdp);
1851 static int init_input_stream(int ist_index, char *error, int error_len)
1854 InputStream *ist = input_streams[ist_index];
1856 if (ist->decoding_needed) {
1857 AVCodec *codec = ist->dec;
1859 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1860 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1861 return AVERROR(EINVAL);
1864 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1865 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1866 ist->st->codec->get_buffer = codec_get_buffer;
1867 ist->st->codec->release_buffer = codec_release_buffer;
1868 ist->st->codec->opaque = &ist->buffer_pool;
1871 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1872 av_dict_set(&ist->opts, "threads", "auto", 0);
1873 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1874 if (ret == AVERROR_EXPERIMENTAL)
1875 abort_codec_experimental(codec, 0);
1876 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1877 ist->file_index, ist->st->index);
1880 assert_avoptions(ist->opts);
1883 ist->next_pts = AV_NOPTS_VALUE;
1884 ist->next_dts = AV_NOPTS_VALUE;
1890 static InputStream *get_input_stream(OutputStream *ost)
1892 if (ost->source_index >= 0)
1893 return input_streams[ost->source_index];
1897 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1898 AVCodecContext *avctx)
1904 for (p = kf; *p; p++)
1907 ost->forced_kf_count = n;
1908 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1909 if (!ost->forced_kf_pts) {
1910 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1915 for (i = 0; i < n; i++) {
1916 char *next = strchr(p, ',');
1921 t = parse_time_or_die("force_key_frames", p, 1);
1922 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1928 static void report_new_stream(int input_index, AVPacket *pkt)
1930 InputFile *file = input_files[input_index];
1931 AVStream *st = file->ctx->streams[pkt->stream_index];
1933 if (pkt->stream_index < file->nb_streams_warn)
1935 av_log(file->ctx, AV_LOG_WARNING,
1936 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1937 av_get_media_type_string(st->codec->codec_type),
1938 input_index, pkt->stream_index,
1939 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1940 file->nb_streams_warn = pkt->stream_index + 1;
1943 static int transcode_init(void)
1945 int ret = 0, i, j, k;
1946 AVFormatContext *oc;
1947 AVCodecContext *codec;
1953 /* init framerate emulation */
1954 for (i = 0; i < nb_input_files; i++) {
1955 InputFile *ifile = input_files[i];
1956 if (ifile->rate_emu)
1957 for (j = 0; j < ifile->nb_streams; j++)
1958 input_streams[j + ifile->ist_index]->start = av_gettime();
1961 /* output stream init */
1962 for (i = 0; i < nb_output_files; i++) {
1963 oc = output_files[i]->ctx;
1964 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1965 av_dump_format(oc, i, oc->filename, 1);
1966 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1967 return AVERROR(EINVAL);
1971 /* init complex filtergraphs */
1972 for (i = 0; i < nb_filtergraphs; i++)
1973 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1976 /* for each output stream, we compute the right encoding parameters */
1977 for (i = 0; i < nb_output_streams; i++) {
1978 AVCodecContext *icodec = NULL;
1979 ost = output_streams[i];
1980 oc = output_files[ost->file_index]->ctx;
1981 ist = get_input_stream(ost);
1983 if (ost->attachment_filename)
1986 codec = ost->st->codec;
1989 icodec = ist->st->codec;
1991 ost->st->disposition = ist->st->disposition;
1992 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1993 codec->chroma_sample_location = icodec->chroma_sample_location;
1996 if (ost->stream_copy) {
1997 uint64_t extra_size;
1999 av_assert0(ist && !ost->filter);
2001 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2003 if (extra_size > INT_MAX) {
2004 return AVERROR(EINVAL);
2007 /* if stream_copy is selected, no need to decode or encode */
2008 codec->codec_id = icodec->codec_id;
2009 codec->codec_type = icodec->codec_type;
2011 if (!codec->codec_tag) {
2012 if (!oc->oformat->codec_tag ||
2013 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2014 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2015 codec->codec_tag = icodec->codec_tag;
2018 codec->bit_rate = icodec->bit_rate;
2019 codec->rc_max_rate = icodec->rc_max_rate;
2020 codec->rc_buffer_size = icodec->rc_buffer_size;
2021 codec->field_order = icodec->field_order;
2022 codec->extradata = av_mallocz(extra_size);
2023 if (!codec->extradata) {
2024 return AVERROR(ENOMEM);
2026 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2027 codec->extradata_size= icodec->extradata_size;
2028 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2030 codec->time_base = ist->st->time_base;
2032 * Avi is a special case here because it supports variable fps but
2033 * having the fps and timebase differe significantly adds quite some
2036 if(!strcmp(oc->oformat->name, "avi")) {
2037 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2038 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2039 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2040 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2042 codec->time_base.num = ist->st->r_frame_rate.den;
2043 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2044 codec->ticks_per_frame = 2;
2045 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2046 && av_q2d(ist->st->time_base) < 1.0/500
2048 codec->time_base = icodec->time_base;
2049 codec->time_base.num *= icodec->ticks_per_frame;
2050 codec->time_base.den *= 2;
2051 codec->ticks_per_frame = 2;
2053 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2054 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2055 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2056 && strcmp(oc->oformat->name, "f4v")
2058 if( copy_tb<0 && icodec->time_base.den
2059 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2060 && av_q2d(ist->st->time_base) < 1.0/500
2062 codec->time_base = icodec->time_base;
2063 codec->time_base.num *= icodec->ticks_per_frame;
2067 if(ost->frame_rate.num)
2068 codec->time_base = av_inv_q(ost->frame_rate);
2070 av_reduce(&codec->time_base.num, &codec->time_base.den,
2071 codec->time_base.num, codec->time_base.den, INT_MAX);
2073 switch (codec->codec_type) {
2074 case AVMEDIA_TYPE_AUDIO:
2075 if (audio_volume != 256) {
2076 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2079 codec->channel_layout = icodec->channel_layout;
2080 codec->sample_rate = icodec->sample_rate;
2081 codec->channels = icodec->channels;
2082 codec->frame_size = icodec->frame_size;
2083 codec->audio_service_type = icodec->audio_service_type;
2084 codec->block_align = icodec->block_align;
2085 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2086 codec->block_align= 0;
2087 if(codec->codec_id == AV_CODEC_ID_AC3)
2088 codec->block_align= 0;
2090 case AVMEDIA_TYPE_VIDEO:
2091 codec->pix_fmt = icodec->pix_fmt;
2092 codec->width = icodec->width;
2093 codec->height = icodec->height;
2094 codec->has_b_frames = icodec->has_b_frames;
2095 if (!codec->sample_aspect_ratio.num) {
2096 codec->sample_aspect_ratio =
2097 ost->st->sample_aspect_ratio =
2098 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2099 ist->st->codec->sample_aspect_ratio.num ?
2100 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2102 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2104 case AVMEDIA_TYPE_SUBTITLE:
2105 codec->width = icodec->width;
2106 codec->height = icodec->height;
2108 case AVMEDIA_TYPE_DATA:
2109 case AVMEDIA_TYPE_ATTACHMENT:
2116 ost->enc = avcodec_find_encoder(codec->codec_id);
2118 /* should only happen when a default codec is not present. */
2119 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2120 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2121 ret = AVERROR(EINVAL);
2126 ist->decoding_needed++;
2127 ost->encoding_needed = 1;
2130 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2131 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2133 fg = init_simple_filtergraph(ist, ost);
2134 if (configure_filtergraph(fg)) {
2135 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2140 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2141 if (ost->filter && !ost->frame_rate.num)
2142 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2143 if (ist && !ost->frame_rate.num)
2144 ost->frame_rate = ist->framerate;
2145 if (ist && !ost->frame_rate.num)
2146 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2147 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2148 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2149 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2150 ost->frame_rate = ost->enc->supported_framerates[idx];
2154 switch (codec->codec_type) {
2155 case AVMEDIA_TYPE_AUDIO:
2156 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2157 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2158 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2159 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2160 codec->time_base = (AVRational){ 1, codec->sample_rate };
2162 case AVMEDIA_TYPE_VIDEO:
2163 codec->time_base = av_inv_q(ost->frame_rate);
2164 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2165 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2166 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2167 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2168 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2169 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2171 for (j = 0; j < ost->forced_kf_count; j++)
2172 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2176 codec->width = ost->filter->filter->inputs[0]->w;
2177 codec->height = ost->filter->filter->inputs[0]->h;
2178 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2179 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2180 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2181 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2182 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2185 codec->width != icodec->width ||
2186 codec->height != icodec->height ||
2187 codec->pix_fmt != icodec->pix_fmt) {
2188 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2191 if (ost->forced_keyframes)
2192 parse_forced_key_frames(ost->forced_keyframes, ost,
2195 case AVMEDIA_TYPE_SUBTITLE:
2196 codec->time_base = (AVRational){1, 1000};
2197 if (!codec->width) {
2198 codec->width = input_streams[ost->source_index]->st->codec->width;
2199 codec->height = input_streams[ost->source_index]->st->codec->height;
2207 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2208 char logfilename[1024];
2211 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2212 ost->logfile_prefix ? ost->logfile_prefix :
2213 DEFAULT_PASS_LOGFILENAME_PREFIX,
2215 if (!strcmp(ost->enc->name, "libx264")) {
2216 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2218 if (codec->flags & CODEC_FLAG_PASS2) {
2220 size_t logbuffer_size;
2221 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2222 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2226 codec->stats_in = logbuffer;
2228 if (codec->flags & CODEC_FLAG_PASS1) {
2229 f = fopen(logfilename, "wb");
2231 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2232 logfilename, strerror(errno));
2242 /* open each encoder */
2243 for (i = 0; i < nb_output_streams; i++) {
2244 ost = output_streams[i];
2245 if (ost->encoding_needed) {
2246 AVCodec *codec = ost->enc;
2247 AVCodecContext *dec = NULL;
2249 if ((ist = get_input_stream(ost)))
2250 dec = ist->st->codec;
2251 if (dec && dec->subtitle_header) {
2252 /* ASS code assumes this buffer is null terminated so add extra byte. */
2253 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2254 if (!ost->st->codec->subtitle_header) {
2255 ret = AVERROR(ENOMEM);
2258 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2259 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2261 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2262 av_dict_set(&ost->opts, "threads", "auto", 0);
2263 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2264 if (ret == AVERROR_EXPERIMENTAL)
2265 abort_codec_experimental(codec, 1);
2266 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2267 ost->file_index, ost->index);
2270 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2271 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2272 av_buffersink_set_frame_size(ost->filter->filter,
2273 ost->st->codec->frame_size);
2274 assert_avoptions(ost->opts);
2275 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2276 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2277 " It takes bits/s as argument, not kbits/s\n");
2278 extra_size += ost->st->codec->extradata_size;
2280 if (ost->st->codec->me_threshold)
2281 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2285 /* init input streams */
2286 for (i = 0; i < nb_input_streams; i++)
2287 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2290 /* discard unused programs */
2291 for (i = 0; i < nb_input_files; i++) {
2292 InputFile *ifile = input_files[i];
2293 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2294 AVProgram *p = ifile->ctx->programs[j];
2295 int discard = AVDISCARD_ALL;
2297 for (k = 0; k < p->nb_stream_indexes; k++)
2298 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2299 discard = AVDISCARD_DEFAULT;
2302 p->discard = discard;
2306 /* open files and write file headers */
2307 for (i = 0; i < nb_output_files; i++) {
2308 oc = output_files[i]->ctx;
2309 oc->interrupt_callback = int_cb;
2310 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2312 const char *errbuf_ptr = errbuf;
2313 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2314 errbuf_ptr = strerror(AVUNERROR(ret));
2315 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2316 ret = AVERROR(EINVAL);
2319 // assert_avoptions(output_files[i]->opts);
2320 if (strcmp(oc->oformat->name, "rtp")) {
2326 /* dump the file output parameters - cannot be done before in case
2328 for (i = 0; i < nb_output_files; i++) {
2329 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2332 /* dump the stream mapping */
2333 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2334 for (i = 0; i < nb_input_streams; i++) {
2335 ist = input_streams[i];
2337 for (j = 0; j < ist->nb_filters; j++) {
2338 if (ist->filters[j]->graph->graph_desc) {
2339 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2340 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2341 ist->filters[j]->name);
2342 if (nb_filtergraphs > 1)
2343 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2344 av_log(NULL, AV_LOG_INFO, "\n");
2349 for (i = 0; i < nb_output_streams; i++) {
2350 ost = output_streams[i];
2352 if (ost->attachment_filename) {
2353 /* an attached file */
2354 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2355 ost->attachment_filename, ost->file_index, ost->index);
2359 if (ost->filter && ost->filter->graph->graph_desc) {
2360 /* output from a complex graph */
2361 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2362 if (nb_filtergraphs > 1)
2363 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2365 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2366 ost->index, ost->enc ? ost->enc->name : "?");
2370 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2371 input_streams[ost->source_index]->file_index,
2372 input_streams[ost->source_index]->st->index,
2375 if (ost->sync_ist != input_streams[ost->source_index])
2376 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2377 ost->sync_ist->file_index,
2378 ost->sync_ist->st->index);
2379 if (ost->stream_copy)
2380 av_log(NULL, AV_LOG_INFO, " (copy)");
2382 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2383 input_streams[ost->source_index]->dec->name : "?",
2384 ost->enc ? ost->enc->name : "?");
2385 av_log(NULL, AV_LOG_INFO, "\n");
2389 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2400 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2401 static int need_output(void)
2405 for (i = 0; i < nb_output_streams; i++) {
2406 OutputStream *ost = output_streams[i];
2407 OutputFile *of = output_files[ost->file_index];
2408 AVFormatContext *os = output_files[ost->file_index]->ctx;
2410 if (ost->finished ||
2411 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2413 if (ost->frame_number >= ost->max_frames) {
2415 for (j = 0; j < of->ctx->nb_streams; j++)
2416 close_output_stream(output_streams[of->ost_index + j]);
2427 * Select the output stream to process.
2429 * @return selected output stream, or NULL if none available
2431 static OutputStream *choose_output(void)
2434 int64_t opts_min = INT64_MAX;
2435 OutputStream *ost_min = NULL;
2437 for (i = 0; i < nb_output_streams; i++) {
2438 OutputStream *ost = output_streams[i];
2439 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2441 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2449 static int check_keyboard_interaction(int64_t cur_time)
2452 static int64_t last_time;
2453 if (received_nb_signals)
2454 return AVERROR_EXIT;
2455 /* read_key() returns 0 on EOF */
2456 if(cur_time - last_time >= 100000 && !run_as_daemon){
2458 last_time = cur_time;
2462 return AVERROR_EXIT;
2463 if (key == '+') av_log_set_level(av_log_get_level()+10);
2464 if (key == '-') av_log_set_level(av_log_get_level()-10);
2465 if (key == 's') qp_hist ^= 1;
2468 do_hex_dump = do_pkt_dump = 0;
2469 } else if(do_pkt_dump){
2473 av_log_set_level(AV_LOG_DEBUG);
2475 if (key == 'c' || key == 'C'){
2476 char buf[4096], target[64], command[256], arg[256] = {0};
2479 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2481 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2486 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2487 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2488 target, time, command, arg);
2489 for (i = 0; i < nb_filtergraphs; i++) {
2490 FilterGraph *fg = filtergraphs[i];
2493 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2494 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2495 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2497 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2502 av_log(NULL, AV_LOG_ERROR,
2503 "Parse error, at least 3 arguments were expected, "
2504 "only %d given in string '%s'\n", n, buf);
2507 if (key == 'd' || key == 'D'){
2510 debug = input_streams[0]->st->codec->debug<<1;
2511 if(!debug) debug = 1;
2512 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2515 if(scanf("%d", &debug)!=1)
2516 fprintf(stderr,"error parsing debug value\n");
2517 for(i=0;i<nb_input_streams;i++) {
2518 input_streams[i]->st->codec->debug = debug;
2520 for(i=0;i<nb_output_streams;i++) {
2521 OutputStream *ost = output_streams[i];
2522 ost->st->codec->debug = debug;
2524 if(debug) av_log_set_level(AV_LOG_DEBUG);
2525 fprintf(stderr,"debug=%d\n", debug);
2528 fprintf(stderr, "key function\n"
2529 "? show this help\n"
2530 "+ increase verbosity\n"
2531 "- decrease verbosity\n"
2532 "c Send command to filtergraph\n"
2533 "D cycle through available debug modes\n"
2534 "h dump packets/hex press to cycle through the 3 states\n"
2536 "s Show QP histogram\n"
2543 static void *input_thread(void *arg)
2548 while (!transcoding_finished && ret >= 0) {
2550 ret = av_read_frame(f->ctx, &pkt);
2552 if (ret == AVERROR(EAGAIN)) {
2559 pthread_mutex_lock(&f->fifo_lock);
2560 while (!av_fifo_space(f->fifo))
2561 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2563 av_dup_packet(&pkt);
2564 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2566 pthread_mutex_unlock(&f->fifo_lock);
2573 static void free_input_threads(void)
2577 if (nb_input_files == 1)
2580 transcoding_finished = 1;
2582 for (i = 0; i < nb_input_files; i++) {
2583 InputFile *f = input_files[i];
2586 if (!f->fifo || f->joined)
2589 pthread_mutex_lock(&f->fifo_lock);
2590 while (av_fifo_size(f->fifo)) {
2591 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2592 av_free_packet(&pkt);
2594 pthread_cond_signal(&f->fifo_cond);
2595 pthread_mutex_unlock(&f->fifo_lock);
2597 pthread_join(f->thread, NULL);
2600 while (av_fifo_size(f->fifo)) {
2601 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2602 av_free_packet(&pkt);
2604 av_fifo_free(f->fifo);
2608 static int init_input_threads(void)
2612 if (nb_input_files == 1)
2615 for (i = 0; i < nb_input_files; i++) {
2616 InputFile *f = input_files[i];
2618 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2619 return AVERROR(ENOMEM);
2621 pthread_mutex_init(&f->fifo_lock, NULL);
2622 pthread_cond_init (&f->fifo_cond, NULL);
2624 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2625 return AVERROR(ret);
2630 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2634 pthread_mutex_lock(&f->fifo_lock);
2636 if (av_fifo_size(f->fifo)) {
2637 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2638 pthread_cond_signal(&f->fifo_cond);
2643 ret = AVERROR(EAGAIN);
2646 pthread_mutex_unlock(&f->fifo_lock);
2652 static int get_input_packet(InputFile *f, AVPacket *pkt)
2655 if (nb_input_files > 1)
2656 return get_input_packet_mt(f, pkt);
2658 return av_read_frame(f->ctx, pkt);
2661 static int got_eagain(void)
2664 for (i = 0; i < nb_output_streams; i++)
2665 if (output_streams[i]->unavailable)
2670 static void reset_eagain(void)
2673 for (i = 0; i < nb_input_files; i++)
2674 input_files[i]->eagain = 0;
2675 for (i = 0; i < nb_output_streams; i++)
2676 output_streams[i]->unavailable = 0;
2681 * - 0 -- one packet was read and processed
2682 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2683 * this function should be called again
2684 * - AVERROR_EOF -- this function should not be called again
2686 static int process_input(int file_index)
2688 InputFile *ifile = input_files[file_index];
2689 AVFormatContext *is;
2695 ret = get_input_packet(ifile, &pkt);
2697 if (ret == AVERROR(EAGAIN)) {
2702 if (ret != AVERROR_EOF) {
2703 print_error(is->filename, ret);
2707 ifile->eof_reached = 1;
2709 for (i = 0; i < ifile->nb_streams; i++) {
2710 ist = input_streams[ifile->ist_index + i];
2711 if (ist->decoding_needed)
2712 output_packet(ist, NULL);
2714 /* mark all outputs that don't go through lavfi as finished */
2715 for (j = 0; j < nb_output_streams; j++) {
2716 OutputStream *ost = output_streams[j];
2718 if (ost->source_index == ifile->ist_index + i &&
2719 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2720 close_output_stream(ost);
2724 return AVERROR(EAGAIN);
2730 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2731 is->streams[pkt.stream_index]);
2733 /* the following test is needed in case new streams appear
2734 dynamically in stream : we ignore them */
2735 if (pkt.stream_index >= ifile->nb_streams) {
2736 report_new_stream(file_index, &pkt);
2737 goto discard_packet;
2740 ist = input_streams[ifile->ist_index + pkt.stream_index];
2742 goto discard_packet;
2744 if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2745 int64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2746 int64_t stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2747 ist->wrap_correction_done = 1;
2749 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2750 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2751 ist->wrap_correction_done = 0;
2753 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2754 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2755 ist->wrap_correction_done = 0;
2759 if (pkt.dts != AV_NOPTS_VALUE)
2760 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2761 if (pkt.pts != AV_NOPTS_VALUE)
2762 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2764 if (pkt.pts != AV_NOPTS_VALUE)
2765 pkt.pts *= ist->ts_scale;
2766 if (pkt.dts != AV_NOPTS_VALUE)
2767 pkt.dts *= ist->ts_scale;
2770 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2771 "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
2772 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2773 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2774 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2775 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2776 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2777 input_files[ist->file_index]->ts_offset);
2780 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2782 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2783 int64_t delta = pkt_dts - ist->next_dts;
2784 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2785 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2786 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2787 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2788 pkt_dts+1<ist->pts){
2789 ifile->ts_offset -= delta;
2790 av_log(NULL, AV_LOG_DEBUG,
2791 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2792 delta, ifile->ts_offset);
2793 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2794 if (pkt.pts != AV_NOPTS_VALUE)
2795 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2798 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2799 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2801 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2802 pkt.dts = AV_NOPTS_VALUE;
2804 if (pkt.pts != AV_NOPTS_VALUE){
2805 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2806 delta = pkt_pts - ist->next_dts;
2807 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2808 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2810 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2811 pkt.pts = AV_NOPTS_VALUE;
2817 sub2video_heartbeat(ist, pkt.pts);
2819 ret = output_packet(ist, &pkt);
2822 av_strerror(ret, buf, sizeof(buf));
2823 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2824 ist->file_index, ist->st->index, buf);
2830 av_free_packet(&pkt);
2836 * Perform a step of transcoding for the specified filter graph.
2838 * @param[in] graph filter graph to consider
2839 * @param[out] best_ist input stream where a frame would allow to continue
2840 * @return 0 for success, <0 for error
2842 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2845 int nb_requests, nb_requests_max = 0;
2846 InputFilter *ifilter;
2850 ret = avfilter_graph_request_oldest(graph->graph);
2852 return reap_filters();
2854 if (ret == AVERROR_EOF) {
2855 ret = reap_filters();
2856 for (i = 0; i < graph->nb_outputs; i++)
2857 close_output_stream(graph->outputs[i]->ost);
2860 if (ret != AVERROR(EAGAIN))
2863 for (i = 0; i < graph->nb_inputs; i++) {
2864 ifilter = graph->inputs[i];
2866 if (input_files[ist->file_index]->eagain ||
2867 input_files[ist->file_index]->eof_reached)
2869 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2870 if (nb_requests > nb_requests_max) {
2871 nb_requests_max = nb_requests;
2877 for (i = 0; i < graph->nb_outputs; i++)
2878 graph->outputs[i]->ost->unavailable = 1;
2884 * Run a single step of transcoding.
2886 * @return 0 for success, <0 for error
2888 static int transcode_step(void)
2894 ost = choose_output();
2901 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2906 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2911 av_assert0(ost->source_index >= 0);
2912 ist = input_streams[ost->source_index];
2915 ret = process_input(ist->file_index);
2916 if (ret == AVERROR(EAGAIN)) {
2917 if (input_files[ist->file_index]->eagain)
2918 ost->unavailable = 1;
2922 return ret == AVERROR_EOF ? 0 : ret;
2924 return reap_filters();
2928 * The following code is the main loop of the file converter
2930 static int transcode(void)
2933 AVFormatContext *os;
2936 int64_t timer_start;
2938 ret = transcode_init();
2942 if (stdin_interaction) {
2943 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2946 timer_start = av_gettime();
2949 if ((ret = init_input_threads()) < 0)
2953 while (!received_sigterm) {
2954 int64_t cur_time= av_gettime();
2956 /* if 'q' pressed, exits */
2957 if (stdin_interaction)
2958 if (check_keyboard_interaction(cur_time) < 0)
2961 /* check if there's any stream where output is still needed */
2962 if (!need_output()) {
2963 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2967 ret = transcode_step();
2969 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2972 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2976 /* dump report by using the output first video and audio streams */
2977 print_report(0, timer_start, cur_time);
2980 free_input_threads();
2983 /* at the end of stream, we must flush the decoder buffers */
2984 for (i = 0; i < nb_input_streams; i++) {
2985 ist = input_streams[i];
2986 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2987 output_packet(ist, NULL);
2994 /* write the trailer if needed and close file */
2995 for (i = 0; i < nb_output_files; i++) {
2996 os = output_files[i]->ctx;
2997 av_write_trailer(os);
3000 /* dump report by using the first video and audio streams */
3001 print_report(1, timer_start, av_gettime());
3003 /* close each encoder */
3004 for (i = 0; i < nb_output_streams; i++) {
3005 ost = output_streams[i];
3006 if (ost->encoding_needed) {
3007 av_freep(&ost->st->codec->stats_in);
3008 avcodec_close(ost->st->codec);
3012 /* close each decoder */
3013 for (i = 0; i < nb_input_streams; i++) {
3014 ist = input_streams[i];
3015 if (ist->decoding_needed) {
3016 avcodec_close(ist->st->codec);
3025 free_input_threads();
3028 if (output_streams) {
3029 for (i = 0; i < nb_output_streams; i++) {
3030 ost = output_streams[i];
3032 if (ost->stream_copy)
3033 av_freep(&ost->st->codec->extradata);
3035 fclose(ost->logfile);
3036 ost->logfile = NULL;
3038 av_freep(&ost->st->codec->subtitle_header);
3039 av_free(ost->forced_kf_pts);
3040 av_dict_free(&ost->opts);
3048 static int64_t getutime(void)
3051 struct rusage rusage;
3053 getrusage(RUSAGE_SELF, &rusage);
3054 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3055 #elif HAVE_GETPROCESSTIMES
3057 FILETIME c, e, k, u;
3058 proc = GetCurrentProcess();
3059 GetProcessTimes(proc, &c, &e, &k, &u);
3060 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3062 return av_gettime();
3066 static int64_t getmaxrss(void)
3068 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3069 struct rusage rusage;
3070 getrusage(RUSAGE_SELF, &rusage);
3071 return (int64_t)rusage.ru_maxrss * 1024;
3072 #elif HAVE_GETPROCESSMEMORYINFO
3074 PROCESS_MEMORY_COUNTERS memcounters;
3075 proc = GetCurrentProcess();
3076 memcounters.cb = sizeof(memcounters);
3077 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3078 return memcounters.PeakPagefileUsage;
3084 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3088 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3090 int idx = locate_option(argc, argv, options, "cpuflags");
3091 if (idx && argv[idx + 1])
3092 opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
3095 int main(int argc, char **argv)
3097 OptionsContext o = { 0 };
3100 atexit(exit_program);
3102 reset_options(&o, 0);
3104 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3106 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3107 parse_loglevel(argc, argv, options);
3109 if(argc>1 && !strcmp(argv[1], "-d")){
3111 av_log_set_callback(log_callback_null);
3116 avcodec_register_all();
3118 avdevice_register_all();
3120 avfilter_register_all();
3122 avformat_network_init();
3124 show_banner(argc, argv, options);
3128 parse_cpuflags(argc, argv, options);
3131 parse_options(&o, argc, argv, options, opt_output_file);
3133 if (nb_output_files <= 0 && nb_input_files == 0) {
3135 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3139 /* file converter / grab */
3140 if (nb_output_files <= 0) {
3141 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3145 // if (nb_input_files == 0) {
3146 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3150 current_time = ti = getutime();
3151 if (transcode() < 0)
3153 ti = getutime() - ti;
3155 int maxrss = getmaxrss() / 1024;
3156 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);