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
36 #include "libavformat/avformat.h"
37 #include "libavdevice/avdevice.h"
38 #include "libswscale/swscale.h"
39 #include "libswresample/swresample.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/audioconvert.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/colorspace.h"
45 #include "libavutil/fifo.h"
46 #include "libavutil/intreadwrite.h"
47 #include "libavutil/dict.h"
48 #include "libavutil/mathematics.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/avstring.h"
51 #include "libavutil/libm.h"
52 #include "libavutil/imgutils.h"
53 #include "libavutil/timestamp.h"
54 #include "libavutil/bprint.h"
55 #include "libavutil/time.h"
56 #include "libavformat/os_support.h"
58 #include "libavformat/ffm.h" // not public API
60 # include "libavfilter/avcodec.h"
61 # include "libavfilter/avfilter.h"
62 # include "libavfilter/avfiltergraph.h"
63 # include "libavfilter/buffersrc.h"
64 # include "libavfilter/buffersink.h"
66 #if HAVE_SYS_RESOURCE_H
67 #include <sys/types.h>
68 #include <sys/resource.h>
69 #elif HAVE_GETPROCESSTIMES
72 #if HAVE_GETPROCESSMEMORYINFO
78 #include <sys/select.h>
83 #include <sys/ioctl.h>
99 #include "libavutil/avassert.h"
101 const char program_name[] = "ffmpeg";
102 const int program_birth_year = 2000;
104 static FILE *vstats_file;
106 static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size);
107 static int64_t getutime(void);
109 static int run_as_daemon = 0;
110 static int64_t video_size = 0;
111 static int64_t audio_size = 0;
112 static int64_t subtitle_size = 0;
113 static int64_t extra_size = 0;
114 static int nb_frames_dup = 0;
115 static int nb_frames_drop = 0;
117 static int current_time;
118 AVIOContext *progress_avio = NULL;
120 static uint8_t *subtitle_out;
123 /* signal to input threads that they should exit; set by the main thread */
124 static int transcoding_finished;
127 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
129 InputStream **input_streams = NULL;
130 int nb_input_streams = 0;
131 InputFile **input_files = NULL;
132 int nb_input_files = 0;
134 OutputStream **output_streams = NULL;
135 int nb_output_streams = 0;
136 OutputFile **output_files = NULL;
137 int nb_output_files = 0;
139 FilterGraph **filtergraphs;
144 /* init terminal so that we can grab keys */
145 static struct termios oldtty;
146 static int restore_tty;
151 Convert subtitles to video with alpha to insert them in filter graphs.
152 This is a temporary solution until libavfilter gets real subtitles support.
157 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
160 uint32_t *pal, *dst2;
164 if (r->type != SUBTITLE_BITMAP) {
165 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
168 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
169 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
173 dst += r->y * dst_linesize + r->x * 4;
174 src = r->pict.data[0];
175 pal = (uint32_t *)r->pict.data[1];
176 for (y = 0; y < r->h; y++) {
177 dst2 = (uint32_t *)dst;
179 for (x = 0; x < r->w; x++)
180 *(dst2++) = pal[*(src2++)];
182 src += r->pict.linesize[0];
186 static void sub2video_push_ref(InputStream *ist, int64_t pts)
188 AVFilterBufferRef *ref = ist->sub2video.ref;
191 ist->sub2video.last_pts = ref->pts = pts;
192 for (i = 0; i < ist->nb_filters; i++)
193 av_buffersrc_add_ref(ist->filters[i]->filter,
194 avfilter_ref_buffer(ref, ~0),
195 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
196 AV_BUFFERSRC_FLAG_NO_COPY);
199 static void sub2video_update(InputStream *ist, AVSubtitle *sub, int64_t pts)
201 int w = ist->sub2video.w, h = ist->sub2video.h;
202 AVFilterBufferRef *ref = ist->sub2video.ref;
210 dst_linesize = ref->linesize[0];
211 memset(dst, 0, h * dst_linesize);
212 for (i = 0; i < sub->num_rects; i++)
213 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
214 sub2video_push_ref(ist, pts);
217 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
219 InputFile *infile = input_files[ist->file_index];
223 /* When a frame is read from a file, examine all sub2video streams in
224 the same file and send the sub2video frame again. Otherwise, decoded
225 video frames could be accumulating in the filter graph while a filter
226 (possibly overlay) is desperately waiting for a subtitle frame. */
227 for (i = 0; i < infile->nb_streams; i++) {
228 InputStream *ist2 = input_streams[infile->ist_index + i];
229 if (!ist2->sub2video.ref)
231 /* subtitles seem to be usually muxed ahead of other streams;
232 if not, substracting a larger time here is necessary */
233 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
234 /* do not send the heartbeat frame if the subtitle is already ahead */
235 if (pts2 <= ist2->sub2video.last_pts)
237 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
238 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
240 sub2video_push_ref(ist2, pts2);
244 static void sub2video_flush(InputStream *ist)
248 for (i = 0; i < ist->nb_filters; i++)
249 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
252 /* end of sub2video hack */
256 av_log(NULL, AV_LOG_QUIET, "%s", "");
259 tcsetattr (0, TCSANOW, &oldtty);
263 static volatile int received_sigterm = 0;
264 static volatile int received_nb_signals = 0;
267 sigterm_handler(int sig)
269 received_sigterm = sig;
270 received_nb_signals++;
272 if(received_nb_signals > 3)
283 istty = isatty(0) && isatty(2);
285 if (istty && tcgetattr (0, &tty) == 0) {
290 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
291 |INLCR|IGNCR|ICRNL|IXON);
292 tty.c_oflag |= OPOST;
293 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
294 tty.c_cflag &= ~(CSIZE|PARENB);
299 tcsetattr (0, TCSANOW, &tty);
301 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
304 avformat_network_deinit();
306 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
307 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
309 signal(SIGXCPU, sigterm_handler);
313 /* read a key without blocking */
314 static int read_key(void)
326 n = select(1, &rfds, NULL, NULL, &tv);
335 # if HAVE_PEEKNAMEDPIPE
337 static HANDLE input_handle;
340 input_handle = GetStdHandle(STD_INPUT_HANDLE);
341 is_pipe = !GetConsoleMode(input_handle, &dw);
344 if (stdin->_cnt > 0) {
349 /* When running under a GUI, you will end here. */
350 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
367 static int decode_interrupt_cb(void *ctx)
369 return received_nb_signals > 1;
372 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
374 void av_noreturn exit_program(int ret)
378 for (i = 0; i < nb_filtergraphs; i++) {
379 avfilter_graph_free(&filtergraphs[i]->graph);
380 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
381 av_freep(&filtergraphs[i]->inputs[j]->name);
382 av_freep(&filtergraphs[i]->inputs[j]);
384 av_freep(&filtergraphs[i]->inputs);
385 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
386 av_freep(&filtergraphs[i]->outputs[j]->name);
387 av_freep(&filtergraphs[i]->outputs[j]);
389 av_freep(&filtergraphs[i]->outputs);
390 av_freep(&filtergraphs[i]);
392 av_freep(&filtergraphs);
394 av_freep(&subtitle_out);
397 for (i = 0; i < nb_output_files; i++) {
398 AVFormatContext *s = output_files[i]->ctx;
399 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
401 avformat_free_context(s);
402 av_dict_free(&output_files[i]->opts);
403 av_freep(&output_files[i]);
405 for (i = 0; i < nb_output_streams; i++) {
406 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
408 AVBitStreamFilterContext *next = bsfc->next;
409 av_bitstream_filter_close(bsfc);
412 output_streams[i]->bitstream_filters = NULL;
414 av_freep(&output_streams[i]->forced_keyframes);
415 av_freep(&output_streams[i]->avfilter);
416 av_freep(&output_streams[i]->filtered_frame);
417 av_freep(&output_streams[i]);
419 for (i = 0; i < nb_input_files; i++) {
420 avformat_close_input(&input_files[i]->ctx);
421 av_freep(&input_files[i]);
423 for (i = 0; i < nb_input_streams; i++) {
424 av_freep(&input_streams[i]->decoded_frame);
425 av_dict_free(&input_streams[i]->opts);
426 free_buffer_pool(&input_streams[i]->buffer_pool);
427 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
428 av_freep(&input_streams[i]->filters);
429 av_freep(&input_streams[i]);
434 av_free(vstats_filename);
436 av_freep(&input_streams);
437 av_freep(&input_files);
438 av_freep(&output_streams);
439 av_freep(&output_files);
444 avformat_network_deinit();
446 if (received_sigterm) {
447 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
448 (int) received_sigterm);
455 void assert_avoptions(AVDictionary *m)
457 AVDictionaryEntry *t;
458 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
459 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
464 static void assert_codec_experimental(AVCodecContext *c, int encoder)
466 const char *codec_string = encoder ? "encoder" : "decoder";
468 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
469 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
470 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
471 "results.\nAdd '-strict experimental' if you want to use it.\n",
472 codec_string, c->codec->name);
473 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
474 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
475 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
476 codec_string, codec->name);
481 static void update_benchmark(const char *fmt, ...)
483 if (do_benchmark_all) {
484 int64_t t = getutime();
490 vsnprintf(buf, sizeof(buf), fmt, va);
492 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
498 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
500 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
501 AVCodecContext *avctx = ost->st->codec;
504 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
505 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
506 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
508 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
509 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
510 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
511 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
512 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, cliping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
513 if(pkt->pts >= pkt->dts)
514 pkt->pts = FFMAX(pkt->pts, max);
520 * Audio encoders may split the packets -- #frames in != #packets out.
521 * But there is no reordering, so we can limit the number of output packets
522 * by simply dropping them here.
523 * Counting encoded video frames needs to be done separately because of
524 * reordering, see do_video_out()
526 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
527 if (ost->frame_number >= ost->max_frames) {
535 AVPacket new_pkt = *pkt;
536 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
537 &new_pkt.data, &new_pkt.size,
538 pkt->data, pkt->size,
539 pkt->flags & AV_PKT_FLAG_KEY);
540 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
541 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
543 memcpy(t, new_pkt.data, new_pkt.size);
544 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
552 new_pkt.destruct = av_destruct_packet;
554 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
555 bsfc->filter->name, pkt->stream_index,
556 avctx->codec ? avctx->codec->name : "copy");
566 pkt->stream_index = ost->index;
567 ret = av_interleaved_write_frame(s, pkt);
569 print_error("av_interleaved_write_frame()", ret);
574 static int check_recording_time(OutputStream *ost)
576 OutputFile *of = output_files[ost->file_index];
578 if (of->recording_time != INT64_MAX &&
579 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
580 AV_TIME_BASE_Q) >= 0) {
587 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
590 AVCodecContext *enc = ost->st->codec;
594 av_init_packet(&pkt);
598 if (!check_recording_time(ost))
601 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
602 frame->pts = ost->sync_opts;
603 ost->sync_opts = frame->pts + frame->nb_samples;
605 av_assert0(pkt.size || !pkt.data);
606 update_benchmark(NULL);
607 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
608 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
611 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
614 if (pkt.pts != AV_NOPTS_VALUE)
615 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
616 if (pkt.dts != AV_NOPTS_VALUE)
617 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
618 if (pkt.duration > 0)
619 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
622 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
623 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
624 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
625 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
628 write_frame(s, &pkt, ost);
630 audio_size += pkt.size;
631 av_free_packet(&pkt);
635 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
639 AVPicture picture_tmp;
642 dec = ist->st->codec;
644 /* deinterlace : must be done before any resize */
645 if (do_deinterlace) {
648 /* create temporary picture */
649 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
650 buf = av_malloc(size);
654 picture2 = &picture_tmp;
655 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
657 if (avpicture_deinterlace(picture2, picture,
658 dec->pix_fmt, dec->width, dec->height) < 0) {
659 /* if error, do not deinterlace */
660 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
669 if (picture != picture2)
670 *picture = *picture2;
674 static void do_subtitle_out(AVFormatContext *s,
680 int subtitle_out_max_size = 1024 * 1024;
681 int subtitle_out_size, nb, i;
685 if (pts == AV_NOPTS_VALUE) {
686 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
692 enc = ost->st->codec;
695 subtitle_out = av_malloc(subtitle_out_max_size);
698 /* Note: DVB subtitle need one packet to draw them and one other
699 packet to clear them */
700 /* XXX: signal it in the codec context ? */
701 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
706 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
707 pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q)
708 - output_files[ost->file_index]->start_time;
709 for (i = 0; i < nb; i++) {
710 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
711 if (!check_recording_time(ost))
715 // start_display_time is required to be 0
716 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
717 sub->end_display_time -= sub->start_display_time;
718 sub->start_display_time = 0;
721 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
722 subtitle_out_max_size, sub);
723 if (subtitle_out_size < 0) {
724 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
728 av_init_packet(&pkt);
729 pkt.data = subtitle_out;
730 pkt.size = subtitle_out_size;
731 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
732 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
733 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
734 /* XXX: the pts correction is handled here. Maybe handling
735 it in the codec would be better */
737 pkt.pts += 90 * sub->start_display_time;
739 pkt.pts += 90 * sub->end_display_time;
741 write_frame(s, &pkt, ost);
742 subtitle_size += pkt.size;
746 static void do_video_out(AVFormatContext *s,
751 int ret, format_video_sync;
753 AVCodecContext *enc = ost->st->codec;
755 double sync_ipts, delta;
758 InputStream *ist = NULL;
760 if (ost->source_index >= 0)
761 ist = input_streams[ost->source_index];
763 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
764 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
766 sync_ipts = in_picture->pts;
767 delta = sync_ipts - ost->sync_opts + duration;
769 /* by default, we output a single frame */
772 format_video_sync = video_sync_method;
773 if (format_video_sync == VSYNC_AUTO)
774 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
776 switch (format_video_sync) {
778 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
781 else if (delta > 1.1)
782 nb_frames = lrintf(delta);
787 else if (delta > 0.6)
788 ost->sync_opts = lrint(sync_ipts);
791 case VSYNC_PASSTHROUGH:
792 ost->sync_opts = lrint(sync_ipts);
798 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
799 if (nb_frames == 0) {
801 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
803 } else if (nb_frames > 1) {
804 if (nb_frames > dts_error_threshold * 30) {
805 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skiping\n", nb_frames - 1);
809 nb_frames_dup += nb_frames - 1;
810 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
813 /* duplicates frame if needed */
814 for (i = 0; i < nb_frames; i++) {
815 av_init_packet(&pkt);
819 in_picture->pts = ost->sync_opts;
821 if (!check_recording_time(ost))
824 if (s->oformat->flags & AVFMT_RAWPICTURE &&
825 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
826 /* raw pictures are written as AVPicture structure to
827 avoid any copies. We support temporarily the older
829 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
830 enc->coded_frame->top_field_first = in_picture->top_field_first;
831 pkt.data = (uint8_t *)in_picture;
832 pkt.size = sizeof(AVPicture);
833 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
834 pkt.flags |= AV_PKT_FLAG_KEY;
836 write_frame(s, &pkt, ost);
837 video_size += pkt.size;
842 big_picture = *in_picture;
843 /* better than nothing: use input picture interlaced
845 big_picture.interlaced_frame = in_picture->interlaced_frame;
846 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
847 if (ost->top_field_first == -1)
848 big_picture.top_field_first = in_picture->top_field_first;
850 big_picture.top_field_first = !!ost->top_field_first;
853 /* handles same_quant here. This is not correct because it may
854 not be a global option */
855 big_picture.quality = quality;
856 if (!enc->me_threshold)
857 big_picture.pict_type = 0;
858 if (ost->forced_kf_index < ost->forced_kf_count &&
859 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
860 big_picture.pict_type = AV_PICTURE_TYPE_I;
861 ost->forced_kf_index++;
863 update_benchmark(NULL);
864 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
865 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
867 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
872 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
873 pkt.pts = ost->sync_opts;
875 if (pkt.pts != AV_NOPTS_VALUE)
876 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
877 if (pkt.dts != AV_NOPTS_VALUE)
878 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
881 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
882 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
883 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
884 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
887 write_frame(s, &pkt, ost);
888 frame_size = pkt.size;
889 video_size += pkt.size;
890 av_free_packet(&pkt);
892 /* if two pass, output log */
893 if (ost->logfile && enc->stats_out) {
894 fprintf(ost->logfile, "%s", enc->stats_out);
900 * For video, number of frames in == number of packets out.
901 * But there may be reordering, so we can't throw away frames on encoder
902 * flush, we need to limit them here, before they go into encoder.
907 if (vstats_filename && frame_size)
908 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
911 static double psnr(double d)
913 return -10.0 * log(d) / log(10.0);
916 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
921 double ti1, bitrate, avg_bitrate;
923 /* this is executed just the first time do_video_stats is called */
925 vstats_file = fopen(vstats_filename, "w");
932 enc = ost->st->codec;
933 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
934 frame_number = ost->frame_number;
935 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
936 if (enc->flags&CODEC_FLAG_PSNR)
937 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
939 fprintf(vstats_file,"f_size= %6d ", frame_size);
940 /* compute pts value */
941 ti1 = ost->sync_opts * av_q2d(enc->time_base);
945 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
946 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
947 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
948 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
949 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
954 * Get and encode new output from any of the filtergraphs, without causing
957 * @return 0 for success, <0 for severe errors
959 static int reap_filters(void)
961 AVFilterBufferRef *picref;
962 AVFrame *filtered_frame = NULL;
966 /* Reap all buffers present in the buffer sinks */
967 for (i = 0; i < nb_output_streams; i++) {
968 OutputStream *ost = output_streams[i];
969 OutputFile *of = output_files[ost->file_index];
975 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
976 return AVERROR(ENOMEM);
978 avcodec_get_frame_defaults(ost->filtered_frame);
979 filtered_frame = ost->filtered_frame;
982 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
983 AV_BUFFERSINK_FLAG_NO_REQUEST);
985 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
987 av_strerror(ret, buf, sizeof(buf));
988 av_log(NULL, AV_LOG_WARNING,
989 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
993 frame_pts = AV_NOPTS_VALUE;
994 if (picref->pts != AV_NOPTS_VALUE) {
995 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
996 ost->filter->filter->inputs[0]->time_base,
997 ost->st->codec->time_base) -
998 av_rescale_q(of->start_time,
1000 ost->st->codec->time_base);
1002 if (of->start_time && filtered_frame->pts < 0) {
1003 avfilter_unref_buffer(picref);
1007 //if (ost->source_index >= 0)
1008 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1011 switch (ost->filter->filter->inputs[0]->type) {
1012 case AVMEDIA_TYPE_VIDEO:
1013 avfilter_copy_buf_props(filtered_frame, picref);
1014 filtered_frame->pts = frame_pts;
1015 if (!ost->frame_aspect_ratio)
1016 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1018 do_video_out(of->ctx, ost, filtered_frame,
1019 same_quant ? ost->last_quality :
1020 ost->st->codec->global_quality);
1022 case AVMEDIA_TYPE_AUDIO:
1023 avfilter_copy_buf_props(filtered_frame, picref);
1024 filtered_frame->pts = frame_pts;
1025 do_audio_out(of->ctx, ost, filtered_frame);
1028 // TODO support subtitle filters
1032 avfilter_unref_buffer(picref);
1039 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1042 AVBPrint buf_script;
1044 AVFormatContext *oc;
1046 AVCodecContext *enc;
1047 int frame_number, vid, i;
1049 int64_t pts = INT64_MAX;
1050 static int64_t last_time = -1;
1051 static int qp_histogram[52];
1052 int hours, mins, secs, us;
1054 if (!print_stats && !is_last_report && !progress_avio)
1057 if (!is_last_report) {
1058 if (last_time == -1) {
1059 last_time = cur_time;
1062 if ((cur_time - last_time) < 500000)
1064 last_time = cur_time;
1068 oc = output_files[0]->ctx;
1070 total_size = avio_size(oc->pb);
1071 if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
1072 total_size = avio_tell(oc->pb);
1079 av_bprint_init(&buf_script, 0, 1);
1080 for (i = 0; i < nb_output_streams; i++) {
1082 ost = output_streams[i];
1083 enc = ost->st->codec;
1084 if (!ost->stream_copy && enc->coded_frame)
1085 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1086 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1087 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1088 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1089 ost->file_index, ost->index, q);
1091 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1092 float fps, t = (cur_time-timer_start) / 1000000.0;
1094 frame_number = ost->frame_number;
1095 fps = t > 1 ? frame_number / t : 0;
1096 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1097 frame_number, fps < 9.95, fps, q);
1098 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1099 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1100 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1101 ost->file_index, ost->index, q);
1103 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1107 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1109 for (j = 0; j < 32; j++)
1110 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1112 if (enc->flags&CODEC_FLAG_PSNR) {
1114 double error, error_sum = 0;
1115 double scale, scale_sum = 0;
1117 char type[3] = { 'Y','U','V' };
1118 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1119 for (j = 0; j < 3; j++) {
1120 if (is_last_report) {
1121 error = enc->error[j];
1122 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1124 error = enc->coded_frame->error[j];
1125 scale = enc->width * enc->height * 255.0 * 255.0;
1131 p = psnr(error / scale);
1132 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1133 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1134 ost->file_index, ost->index, type[i] | 32, p);
1136 p = psnr(error_sum / scale_sum);
1137 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1138 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1139 ost->file_index, ost->index, p);
1143 /* compute min output value */
1144 pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1145 ost->st->time_base, AV_TIME_BASE_Q));
1148 secs = pts / AV_TIME_BASE;
1149 us = pts % AV_TIME_BASE;
1155 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1157 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1158 "size=%8.0fkB time=", total_size / 1024.0);
1159 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1160 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1161 (100 * us) / AV_TIME_BASE);
1162 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1163 "bitrate=%6.1fkbits/s", bitrate);
1164 av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1165 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1166 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1167 hours, mins, secs, us);
1169 if (nb_frames_dup || nb_frames_drop)
1170 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1171 nb_frames_dup, nb_frames_drop);
1172 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1173 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1175 if (print_stats || is_last_report) {
1176 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1181 if (progress_avio) {
1182 av_bprintf(&buf_script, "progress=%s\n",
1183 is_last_report ? "end" : "continue");
1184 avio_write(progress_avio, buf_script.str,
1185 FFMIN(buf_script.len, buf_script.size - 1));
1186 avio_flush(progress_avio);
1187 av_bprint_finalize(&buf_script, NULL);
1188 if (is_last_report) {
1189 avio_close(progress_avio);
1190 progress_avio = NULL;
1194 if (is_last_report) {
1195 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1196 av_log(NULL, AV_LOG_INFO, "\n");
1197 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1198 video_size / 1024.0,
1199 audio_size / 1024.0,
1200 subtitle_size / 1024.0,
1201 extra_size / 1024.0,
1202 100.0 * (total_size - raw) / raw
1204 if(video_size + audio_size + subtitle_size + extra_size == 0){
1205 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1210 static void flush_encoders(void)
1214 for (i = 0; i < nb_output_streams; i++) {
1215 OutputStream *ost = output_streams[i];
1216 AVCodecContext *enc = ost->st->codec;
1217 AVFormatContext *os = output_files[ost->file_index]->ctx;
1218 int stop_encoding = 0;
1220 if (!ost->encoding_needed)
1223 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1225 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1229 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1233 switch (ost->st->codec->codec_type) {
1234 case AVMEDIA_TYPE_AUDIO:
1235 encode = avcodec_encode_audio2;
1239 case AVMEDIA_TYPE_VIDEO:
1240 encode = avcodec_encode_video2;
1251 av_init_packet(&pkt);
1255 update_benchmark(NULL);
1256 ret = encode(enc, &pkt, NULL, &got_packet);
1257 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1259 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1263 if (ost->logfile && enc->stats_out) {
1264 fprintf(ost->logfile, "%s", enc->stats_out);
1270 if (pkt.pts != AV_NOPTS_VALUE)
1271 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1272 if (pkt.dts != AV_NOPTS_VALUE)
1273 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1274 write_frame(os, &pkt, ost);
1284 * Check whether a packet from ist should be written into ost at this time
1286 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1288 OutputFile *of = output_files[ost->file_index];
1289 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1291 if (ost->source_index != ist_index)
1294 if (of->start_time && ist->pts < of->start_time)
1300 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1302 OutputFile *of = output_files[ost->file_index];
1303 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1307 av_init_packet(&opkt);
1309 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1310 !ost->copy_initial_nonkeyframes)
1313 if (of->recording_time != INT64_MAX &&
1314 ist->pts >= of->recording_time + of->start_time) {
1319 /* force the input stream PTS */
1320 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1321 audio_size += pkt->size;
1322 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1323 video_size += pkt->size;
1325 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1326 subtitle_size += pkt->size;
1329 if (pkt->pts != AV_NOPTS_VALUE)
1330 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1332 opkt.pts = AV_NOPTS_VALUE;
1334 if (pkt->dts == AV_NOPTS_VALUE)
1335 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1337 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1338 opkt.dts -= ost_tb_start_time;
1340 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1341 opkt.flags = pkt->flags;
1343 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1344 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1345 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1346 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1347 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1349 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1350 opkt.destruct = av_destruct_packet;
1352 opkt.data = pkt->data;
1353 opkt.size = pkt->size;
1356 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1357 /* store AVPicture in AVPacket, as expected by the output format */
1358 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1359 opkt.data = (uint8_t *)&pict;
1360 opkt.size = sizeof(AVPicture);
1361 opkt.flags |= AV_PKT_FLAG_KEY;
1364 write_frame(of->ctx, &opkt, ost);
1365 ost->st->codec->frame_number++;
1366 av_free_packet(&opkt);
1369 static void rate_emu_sleep(InputStream *ist)
1371 if (input_files[ist->file_index]->rate_emu) {
1372 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1373 int64_t now = av_gettime() - ist->start;
1375 av_usleep(pts - now);
1379 int guess_input_channel_layout(InputStream *ist)
1381 AVCodecContext *dec = ist->st->codec;
1383 if (!dec->channel_layout) {
1384 char layout_name[256];
1386 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1387 if (!dec->channel_layout)
1389 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1390 dec->channels, dec->channel_layout);
1391 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1392 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1397 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1399 AVFrame *decoded_frame;
1400 AVCodecContext *avctx = ist->st->codec;
1401 int i, ret, resample_changed;
1402 AVRational decoded_frame_tb;
1404 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1405 return AVERROR(ENOMEM);
1407 avcodec_get_frame_defaults(ist->decoded_frame);
1408 decoded_frame = ist->decoded_frame;
1410 update_benchmark(NULL);
1411 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1412 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1414 if (ret >= 0 && avctx->sample_rate <= 0) {
1415 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1416 ret = AVERROR_INVALIDDATA;
1419 if (!*got_output || ret < 0) {
1421 for (i = 0; i < ist->nb_filters; i++)
1422 av_buffersrc_add_ref(ist->filters[i]->filter, NULL,
1423 AV_BUFFERSRC_FLAG_NO_COPY);
1429 /* increment next_dts to use for the case where the input stream does not
1430 have timestamps or there are multiple frames in the packet */
1431 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1433 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1437 rate_emu_sleep(ist);
1439 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1440 ist->resample_channels != avctx->channels ||
1441 ist->resample_channel_layout != decoded_frame->channel_layout ||
1442 ist->resample_sample_rate != decoded_frame->sample_rate;
1443 if (resample_changed) {
1444 char layout1[64], layout2[64];
1446 if (!guess_input_channel_layout(ist)) {
1447 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1448 "layout for Input Stream #%d.%d\n", ist->file_index,
1452 decoded_frame->channel_layout = avctx->channel_layout;
1454 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1455 ist->resample_channel_layout);
1456 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1457 decoded_frame->channel_layout);
1459 av_log(NULL, AV_LOG_INFO,
1460 "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",
1461 ist->file_index, ist->st->index,
1462 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1463 ist->resample_channels, layout1,
1464 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1465 avctx->channels, layout2);
1467 ist->resample_sample_fmt = decoded_frame->format;
1468 ist->resample_sample_rate = decoded_frame->sample_rate;
1469 ist->resample_channel_layout = decoded_frame->channel_layout;
1470 ist->resample_channels = avctx->channels;
1472 for (i = 0; i < nb_filtergraphs; i++)
1473 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1474 FilterGraph *fg = filtergraphs[i];
1476 if (configure_filtergraph(fg) < 0) {
1477 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1480 for (j = 0; j < fg->nb_outputs; j++) {
1481 OutputStream *ost = fg->outputs[j]->ost;
1482 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1483 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1484 av_buffersink_set_frame_size(ost->filter->filter,
1485 ost->st->codec->frame_size);
1490 /* if the decoder provides a pts, use it instead of the last packet pts.
1491 the decoder could be delaying output by a packet or more. */
1492 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1493 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1494 decoded_frame_tb = avctx->time_base;
1495 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1496 decoded_frame->pts = decoded_frame->pkt_pts;
1497 pkt->pts = AV_NOPTS_VALUE;
1498 decoded_frame_tb = ist->st->time_base;
1499 } else if (pkt->pts != AV_NOPTS_VALUE) {
1500 decoded_frame->pts = pkt->pts;
1501 pkt->pts = AV_NOPTS_VALUE;
1502 decoded_frame_tb = ist->st->time_base;
1504 decoded_frame->pts = ist->dts;
1505 decoded_frame_tb = AV_TIME_BASE_Q;
1507 if (decoded_frame->pts != AV_NOPTS_VALUE)
1508 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1510 (AVRational){1, ist->st->codec->sample_rate});
1511 for (i = 0; i < ist->nb_filters; i++)
1512 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0);
1514 decoded_frame->pts = AV_NOPTS_VALUE;
1519 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1521 AVFrame *decoded_frame;
1522 void *buffer_to_free = NULL;
1523 int i, ret = 0, resample_changed;
1524 int64_t best_effort_timestamp;
1525 AVRational *frame_sample_aspect;
1528 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1529 return AVERROR(ENOMEM);
1531 avcodec_get_frame_defaults(ist->decoded_frame);
1532 decoded_frame = ist->decoded_frame;
1533 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1535 update_benchmark(NULL);
1536 ret = avcodec_decode_video2(ist->st->codec,
1537 decoded_frame, got_output, pkt);
1538 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1539 if (!*got_output || ret < 0) {
1541 for (i = 0; i < ist->nb_filters; i++)
1542 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, AV_BUFFERSRC_FLAG_NO_COPY);
1547 quality = same_quant ? decoded_frame->quality : 0;
1549 if(ist->top_field_first>=0)
1550 decoded_frame->top_field_first = ist->top_field_first;
1552 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1553 if(best_effort_timestamp != AV_NOPTS_VALUE)
1554 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1557 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1558 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1559 ist->st->index, av_ts2str(decoded_frame->pts),
1560 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1561 best_effort_timestamp,
1562 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1563 decoded_frame->key_frame, decoded_frame->pict_type);
1567 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1569 rate_emu_sleep(ist);
1571 if (ist->st->sample_aspect_ratio.num)
1572 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1574 resample_changed = ist->resample_width != decoded_frame->width ||
1575 ist->resample_height != decoded_frame->height ||
1576 ist->resample_pix_fmt != decoded_frame->format;
1577 if (resample_changed) {
1578 av_log(NULL, AV_LOG_INFO,
1579 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1580 ist->file_index, ist->st->index,
1581 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1582 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1584 ist->resample_width = decoded_frame->width;
1585 ist->resample_height = decoded_frame->height;
1586 ist->resample_pix_fmt = decoded_frame->format;
1588 for (i = 0; i < nb_filtergraphs; i++)
1589 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1590 configure_filtergraph(filtergraphs[i]) < 0) {
1591 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1596 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1597 for (i = 0; i < ist->nb_filters; i++) {
1598 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1599 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1600 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1601 // XXX what an ugly hack
1602 if (ist->filters[i]->graph->nb_outputs == 1)
1603 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
1605 if (!frame_sample_aspect->num)
1606 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1607 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1608 FrameBuffer *buf = decoded_frame->opaque;
1609 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1610 decoded_frame->data, decoded_frame->linesize,
1611 AV_PERM_READ | AV_PERM_PRESERVE,
1612 ist->st->codec->width, ist->st->codec->height,
1613 ist->st->codec->pix_fmt);
1615 avfilter_copy_frame_props(fb, decoded_frame);
1616 fb->buf->priv = buf;
1617 fb->buf->free = filter_release_buffer;
1619 av_assert0(buf->refcount>0);
1621 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1622 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1623 AV_BUFFERSRC_FLAG_NO_COPY);
1625 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0)<0) {
1626 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1632 av_free(buffer_to_free);
1636 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1638 AVSubtitle subtitle;
1639 int64_t pts = pkt->pts;
1640 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1641 &subtitle, got_output, pkt);
1642 if (ret < 0 || !*got_output) {
1644 sub2video_flush(ist);
1648 if (ist->fix_sub_duration) {
1649 if (ist->prev_sub.got_output) {
1650 int end = av_rescale_q(pts - ist->prev_sub.pts, ist->st->time_base,
1651 (AVRational){ 1, 1000 });
1652 if (end < ist->prev_sub.subtitle.end_display_time) {
1653 av_log(ist->st->codec, AV_LOG_DEBUG,
1654 "Subtitle duration reduced from %d to %d\n",
1655 ist->prev_sub.subtitle.end_display_time, end);
1656 ist->prev_sub.subtitle.end_display_time = end;
1659 FFSWAP(int64_t, pts, ist->prev_sub.pts);
1660 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1661 FFSWAP(int, ret, ist->prev_sub.ret);
1662 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1665 if (!*got_output || !subtitle.num_rects)
1668 rate_emu_sleep(ist);
1670 sub2video_update(ist, &subtitle, pkt->pts);
1672 for (i = 0; i < nb_output_streams; i++) {
1673 OutputStream *ost = output_streams[i];
1675 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1678 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pts);
1681 avsubtitle_free(&subtitle);
1685 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1686 static int output_packet(InputStream *ist, const AVPacket *pkt)
1692 if (!ist->saw_first_ts) {
1693 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;
1695 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1696 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1697 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1699 ist->saw_first_ts = 1;
1702 if (ist->next_dts == AV_NOPTS_VALUE)
1703 ist->next_dts = ist->dts;
1704 if (ist->next_pts == AV_NOPTS_VALUE)
1705 ist->next_pts = ist->pts;
1709 av_init_packet(&avpkt);
1717 if (pkt->dts != AV_NOPTS_VALUE) {
1718 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1719 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1720 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1723 // while we have more to decode or while the decoder did output something on EOF
1724 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1728 ist->pts = ist->next_pts;
1729 ist->dts = ist->next_dts;
1731 if (avpkt.size && avpkt.size != pkt->size) {
1732 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1733 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1734 ist->showed_multi_packet_warning = 1;
1737 switch (ist->st->codec->codec_type) {
1738 case AVMEDIA_TYPE_AUDIO:
1739 ret = decode_audio (ist, &avpkt, &got_output);
1741 case AVMEDIA_TYPE_VIDEO:
1742 ret = decode_video (ist, &avpkt, &got_output);
1743 if (avpkt.duration) {
1744 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1745 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1746 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1747 duration = ((int64_t)AV_TIME_BASE *
1748 ist->st->codec->time_base.num * ticks) /
1749 ist->st->codec->time_base.den;
1753 if(ist->dts != AV_NOPTS_VALUE && duration) {
1754 ist->next_dts += duration;
1756 ist->next_dts = AV_NOPTS_VALUE;
1759 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1761 case AVMEDIA_TYPE_SUBTITLE:
1762 ret = transcode_subtitles(ist, &avpkt, &got_output);
1772 avpkt.pts= AV_NOPTS_VALUE;
1774 // touch data and size only if not EOF
1776 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1786 /* handle stream copy */
1787 if (!ist->decoding_needed) {
1788 rate_emu_sleep(ist);
1789 ist->dts = ist->next_dts;
1790 switch (ist->st->codec->codec_type) {
1791 case AVMEDIA_TYPE_AUDIO:
1792 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1793 ist->st->codec->sample_rate;
1795 case AVMEDIA_TYPE_VIDEO:
1796 if (pkt->duration) {
1797 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1798 } else if(ist->st->codec->time_base.num != 0) {
1799 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1800 ist->next_dts += ((int64_t)AV_TIME_BASE *
1801 ist->st->codec->time_base.num * ticks) /
1802 ist->st->codec->time_base.den;
1806 ist->pts = ist->dts;
1807 ist->next_pts = ist->next_dts;
1809 for (i = 0; pkt && i < nb_output_streams; i++) {
1810 OutputStream *ost = output_streams[i];
1812 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1815 do_streamcopy(ist, ost, pkt);
1821 static void print_sdp(void)
1825 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1829 for (i = 0; i < nb_output_files; i++)
1830 avc[i] = output_files[i]->ctx;
1832 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1833 printf("SDP:\n%s\n", sdp);
1838 static int init_input_stream(int ist_index, char *error, int error_len)
1840 InputStream *ist = input_streams[ist_index];
1842 if (ist->decoding_needed) {
1843 AVCodec *codec = ist->dec;
1845 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1846 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1847 return AVERROR(EINVAL);
1850 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1851 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1852 ist->st->codec->get_buffer = codec_get_buffer;
1853 ist->st->codec->release_buffer = codec_release_buffer;
1854 ist->st->codec->opaque = &ist->buffer_pool;
1857 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1858 av_dict_set(&ist->opts, "threads", "auto", 0);
1859 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1860 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1861 ist->file_index, ist->st->index);
1862 return AVERROR(EINVAL);
1864 assert_codec_experimental(ist->st->codec, 0);
1865 assert_avoptions(ist->opts);
1868 ist->next_pts = AV_NOPTS_VALUE;
1869 ist->next_dts = AV_NOPTS_VALUE;
1875 static InputStream *get_input_stream(OutputStream *ost)
1877 if (ost->source_index >= 0)
1878 return input_streams[ost->source_index];
1882 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1883 AVCodecContext *avctx)
1889 for (p = kf; *p; p++)
1892 ost->forced_kf_count = n;
1893 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1894 if (!ost->forced_kf_pts) {
1895 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1900 for (i = 0; i < n; i++) {
1901 char *next = strchr(p, ',');
1906 t = parse_time_or_die("force_key_frames", p, 1);
1907 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1913 static void report_new_stream(int input_index, AVPacket *pkt)
1915 InputFile *file = input_files[input_index];
1916 AVStream *st = file->ctx->streams[pkt->stream_index];
1918 if (pkt->stream_index < file->nb_streams_warn)
1920 av_log(file->ctx, AV_LOG_WARNING,
1921 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1922 av_get_media_type_string(st->codec->codec_type),
1923 input_index, pkt->stream_index,
1924 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1925 file->nb_streams_warn = pkt->stream_index + 1;
1928 static int transcode_init(void)
1930 int ret = 0, i, j, k;
1931 AVFormatContext *oc;
1932 AVCodecContext *codec;
1938 /* init framerate emulation */
1939 for (i = 0; i < nb_input_files; i++) {
1940 InputFile *ifile = input_files[i];
1941 if (ifile->rate_emu)
1942 for (j = 0; j < ifile->nb_streams; j++)
1943 input_streams[j + ifile->ist_index]->start = av_gettime();
1946 /* output stream init */
1947 for (i = 0; i < nb_output_files; i++) {
1948 oc = output_files[i]->ctx;
1949 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1950 av_dump_format(oc, i, oc->filename, 1);
1951 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1952 return AVERROR(EINVAL);
1956 /* init complex filtergraphs */
1957 for (i = 0; i < nb_filtergraphs; i++)
1958 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1961 /* for each output stream, we compute the right encoding parameters */
1962 for (i = 0; i < nb_output_streams; i++) {
1963 AVCodecContext *icodec = NULL;
1964 ost = output_streams[i];
1965 oc = output_files[ost->file_index]->ctx;
1966 ist = get_input_stream(ost);
1968 if (ost->attachment_filename)
1971 codec = ost->st->codec;
1974 icodec = ist->st->codec;
1976 ost->st->disposition = ist->st->disposition;
1977 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1978 codec->chroma_sample_location = icodec->chroma_sample_location;
1981 if (ost->stream_copy) {
1982 uint64_t extra_size;
1984 av_assert0(ist && !ost->filter);
1986 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1988 if (extra_size > INT_MAX) {
1989 return AVERROR(EINVAL);
1992 /* if stream_copy is selected, no need to decode or encode */
1993 codec->codec_id = icodec->codec_id;
1994 codec->codec_type = icodec->codec_type;
1996 if (!codec->codec_tag) {
1997 if (!oc->oformat->codec_tag ||
1998 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1999 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2000 codec->codec_tag = icodec->codec_tag;
2003 codec->bit_rate = icodec->bit_rate;
2004 codec->rc_max_rate = icodec->rc_max_rate;
2005 codec->rc_buffer_size = icodec->rc_buffer_size;
2006 codec->field_order = icodec->field_order;
2007 codec->extradata = av_mallocz(extra_size);
2008 if (!codec->extradata) {
2009 return AVERROR(ENOMEM);
2011 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2012 codec->extradata_size= icodec->extradata_size;
2013 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2015 codec->time_base = ist->st->time_base;
2017 * Avi is a special case here because it supports variable fps but
2018 * having the fps and timebase differe significantly adds quite some
2021 if(!strcmp(oc->oformat->name, "avi")) {
2022 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2023 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2024 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2025 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2027 codec->time_base.num = ist->st->r_frame_rate.den;
2028 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2029 codec->ticks_per_frame = 2;
2030 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2031 && av_q2d(ist->st->time_base) < 1.0/500
2033 codec->time_base = icodec->time_base;
2034 codec->time_base.num *= icodec->ticks_per_frame;
2035 codec->time_base.den *= 2;
2036 codec->ticks_per_frame = 2;
2038 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2039 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2040 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2042 if( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2043 && av_q2d(ist->st->time_base) < 1.0/500
2045 codec->time_base = icodec->time_base;
2046 codec->time_base.num *= icodec->ticks_per_frame;
2050 if(ost->frame_rate.num)
2051 codec->time_base = av_inv_q(ost->frame_rate);
2053 av_reduce(&codec->time_base.num, &codec->time_base.den,
2054 codec->time_base.num, codec->time_base.den, INT_MAX);
2056 switch (codec->codec_type) {
2057 case AVMEDIA_TYPE_AUDIO:
2058 if (audio_volume != 256) {
2059 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2062 codec->channel_layout = icodec->channel_layout;
2063 codec->sample_rate = icodec->sample_rate;
2064 codec->channels = icodec->channels;
2065 codec->frame_size = icodec->frame_size;
2066 codec->audio_service_type = icodec->audio_service_type;
2067 codec->block_align = icodec->block_align;
2068 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2069 codec->block_align= 0;
2070 if(codec->codec_id == AV_CODEC_ID_AC3)
2071 codec->block_align= 0;
2073 case AVMEDIA_TYPE_VIDEO:
2074 codec->pix_fmt = icodec->pix_fmt;
2075 codec->width = icodec->width;
2076 codec->height = icodec->height;
2077 codec->has_b_frames = icodec->has_b_frames;
2078 if (!codec->sample_aspect_ratio.num) {
2079 codec->sample_aspect_ratio =
2080 ost->st->sample_aspect_ratio =
2081 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2082 ist->st->codec->sample_aspect_ratio.num ?
2083 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2085 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2087 case AVMEDIA_TYPE_SUBTITLE:
2088 codec->width = icodec->width;
2089 codec->height = icodec->height;
2091 case AVMEDIA_TYPE_DATA:
2092 case AVMEDIA_TYPE_ATTACHMENT:
2099 ost->enc = avcodec_find_encoder(codec->codec_id);
2101 /* should only happen when a default codec is not present. */
2102 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2103 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2104 ret = AVERROR(EINVAL);
2109 ist->decoding_needed = 1;
2110 ost->encoding_needed = 1;
2113 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2114 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2116 fg = init_simple_filtergraph(ist, ost);
2117 if (configure_filtergraph(fg)) {
2118 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2123 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2124 if (ost->filter && !ost->frame_rate.num)
2125 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2126 if (ist && !ost->frame_rate.num)
2127 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2128 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2129 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2130 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2131 ost->frame_rate = ost->enc->supported_framerates[idx];
2135 switch (codec->codec_type) {
2136 case AVMEDIA_TYPE_AUDIO:
2137 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2138 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2139 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2140 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2141 codec->time_base = (AVRational){ 1, codec->sample_rate };
2143 case AVMEDIA_TYPE_VIDEO:
2144 codec->time_base = av_inv_q(ost->frame_rate);
2145 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2146 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2147 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2148 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2149 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2150 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2152 for (j = 0; j < ost->forced_kf_count; j++)
2153 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2157 codec->width = ost->filter->filter->inputs[0]->w;
2158 codec->height = ost->filter->filter->inputs[0]->h;
2159 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2160 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2161 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2162 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2163 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2166 codec->width != icodec->width ||
2167 codec->height != icodec->height ||
2168 codec->pix_fmt != icodec->pix_fmt) {
2169 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2172 if (ost->forced_keyframes)
2173 parse_forced_key_frames(ost->forced_keyframes, ost,
2176 case AVMEDIA_TYPE_SUBTITLE:
2177 codec->time_base = (AVRational){1, 1000};
2178 if (!codec->width) {
2179 codec->width = input_streams[ost->source_index]->st->codec->width;
2180 codec->height = input_streams[ost->source_index]->st->codec->height;
2188 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2189 char logfilename[1024];
2192 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2193 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2195 if (!strcmp(ost->enc->name, "libx264")) {
2196 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2198 if (codec->flags & CODEC_FLAG_PASS2) {
2200 size_t logbuffer_size;
2201 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2202 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2206 codec->stats_in = logbuffer;
2208 if (codec->flags & CODEC_FLAG_PASS1) {
2209 f = fopen(logfilename, "wb");
2211 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2212 logfilename, strerror(errno));
2222 /* open each encoder */
2223 for (i = 0; i < nb_output_streams; i++) {
2224 ost = output_streams[i];
2225 if (ost->encoding_needed) {
2226 AVCodec *codec = ost->enc;
2227 AVCodecContext *dec = NULL;
2229 if ((ist = get_input_stream(ost)))
2230 dec = ist->st->codec;
2231 if (dec && dec->subtitle_header) {
2232 /* ASS code assumes this buffer is null terminated so add extra byte. */
2233 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2234 if (!ost->st->codec->subtitle_header) {
2235 ret = AVERROR(ENOMEM);
2238 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2239 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2241 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2242 av_dict_set(&ost->opts, "threads", "auto", 0);
2243 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2244 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2245 ost->file_index, ost->index);
2246 ret = AVERROR(EINVAL);
2249 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2250 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2251 av_buffersink_set_frame_size(ost->filter->filter,
2252 ost->st->codec->frame_size);
2253 assert_codec_experimental(ost->st->codec, 1);
2254 assert_avoptions(ost->opts);
2255 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2256 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2257 " It takes bits/s as argument, not kbits/s\n");
2258 extra_size += ost->st->codec->extradata_size;
2260 if (ost->st->codec->me_threshold)
2261 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2265 /* init input streams */
2266 for (i = 0; i < nb_input_streams; i++)
2267 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2270 /* discard unused programs */
2271 for (i = 0; i < nb_input_files; i++) {
2272 InputFile *ifile = input_files[i];
2273 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2274 AVProgram *p = ifile->ctx->programs[j];
2275 int discard = AVDISCARD_ALL;
2277 for (k = 0; k < p->nb_stream_indexes; k++)
2278 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2279 discard = AVDISCARD_DEFAULT;
2282 p->discard = discard;
2286 /* open files and write file headers */
2287 for (i = 0; i < nb_output_files; i++) {
2288 oc = output_files[i]->ctx;
2289 oc->interrupt_callback = int_cb;
2290 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2292 const char *errbuf_ptr = errbuf;
2293 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2294 errbuf_ptr = strerror(AVUNERROR(ret));
2295 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2296 ret = AVERROR(EINVAL);
2299 // assert_avoptions(output_files[i]->opts);
2300 if (strcmp(oc->oformat->name, "rtp")) {
2306 /* dump the file output parameters - cannot be done before in case
2308 for (i = 0; i < nb_output_files; i++) {
2309 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2312 /* dump the stream mapping */
2313 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2314 for (i = 0; i < nb_input_streams; i++) {
2315 ist = input_streams[i];
2317 for (j = 0; j < ist->nb_filters; j++) {
2318 if (ist->filters[j]->graph->graph_desc) {
2319 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2320 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2321 ist->filters[j]->name);
2322 if (nb_filtergraphs > 1)
2323 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2324 av_log(NULL, AV_LOG_INFO, "\n");
2329 for (i = 0; i < nb_output_streams; i++) {
2330 ost = output_streams[i];
2332 if (ost->attachment_filename) {
2333 /* an attached file */
2334 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2335 ost->attachment_filename, ost->file_index, ost->index);
2339 if (ost->filter && ost->filter->graph->graph_desc) {
2340 /* output from a complex graph */
2341 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2342 if (nb_filtergraphs > 1)
2343 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2345 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2346 ost->index, ost->enc ? ost->enc->name : "?");
2350 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2351 input_streams[ost->source_index]->file_index,
2352 input_streams[ost->source_index]->st->index,
2355 if (ost->sync_ist != input_streams[ost->source_index])
2356 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2357 ost->sync_ist->file_index,
2358 ost->sync_ist->st->index);
2359 if (ost->stream_copy)
2360 av_log(NULL, AV_LOG_INFO, " (copy)");
2362 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2363 input_streams[ost->source_index]->dec->name : "?",
2364 ost->enc ? ost->enc->name : "?");
2365 av_log(NULL, AV_LOG_INFO, "\n");
2369 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2381 * @return 1 if there are still streams where more output is wanted,
2384 static int need_output(void)
2388 for (i = 0; i < nb_output_streams; i++) {
2389 OutputStream *ost = output_streams[i];
2390 OutputFile *of = output_files[ost->file_index];
2391 AVFormatContext *os = output_files[ost->file_index]->ctx;
2393 if (ost->finished ||
2394 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2396 if (ost->frame_number >= ost->max_frames) {
2398 for (j = 0; j < of->ctx->nb_streams; j++)
2399 output_streams[of->ost_index + j]->finished = 1;
2410 * Select the output stream to process.
2412 * @return selected output stream, or NULL if none available
2414 static OutputStream *choose_output(void)
2417 int64_t opts_min = INT64_MAX;
2418 OutputStream *ost_min = NULL;
2420 for (i = 0; i < nb_output_streams; i++) {
2421 OutputStream *ost = output_streams[i];
2422 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2424 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2432 static int check_keyboard_interaction(int64_t cur_time)
2435 static int64_t last_time;
2436 if (received_nb_signals)
2437 return AVERROR_EXIT;
2438 /* read_key() returns 0 on EOF */
2439 if(cur_time - last_time >= 100000 && !run_as_daemon){
2441 last_time = cur_time;
2445 return AVERROR_EXIT;
2446 if (key == '+') av_log_set_level(av_log_get_level()+10);
2447 if (key == '-') av_log_set_level(av_log_get_level()-10);
2448 if (key == 's') qp_hist ^= 1;
2451 do_hex_dump = do_pkt_dump = 0;
2452 } else if(do_pkt_dump){
2456 av_log_set_level(AV_LOG_DEBUG);
2458 if (key == 'c' || key == 'C'){
2459 char buf[4096], target[64], command[256], arg[256] = {0};
2462 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2464 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2469 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2470 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2471 target, time, command, arg);
2472 for (i = 0; i < nb_filtergraphs; i++) {
2473 FilterGraph *fg = filtergraphs[i];
2476 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2477 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2478 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2480 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2485 av_log(NULL, AV_LOG_ERROR,
2486 "Parse error, at least 3 arguments were expected, "
2487 "only %d given in string '%s'\n", n, buf);
2490 if (key == 'd' || key == 'D'){
2493 debug = input_streams[0]->st->codec->debug<<1;
2494 if(!debug) debug = 1;
2495 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2498 if(scanf("%d", &debug)!=1)
2499 fprintf(stderr,"error parsing debug value\n");
2500 for(i=0;i<nb_input_streams;i++) {
2501 input_streams[i]->st->codec->debug = debug;
2503 for(i=0;i<nb_output_streams;i++) {
2504 OutputStream *ost = output_streams[i];
2505 ost->st->codec->debug = debug;
2507 if(debug) av_log_set_level(AV_LOG_DEBUG);
2508 fprintf(stderr,"debug=%d\n", debug);
2511 fprintf(stderr, "key function\n"
2512 "? show this help\n"
2513 "+ increase verbosity\n"
2514 "- decrease verbosity\n"
2515 "c Send command to filtergraph\n"
2516 "D cycle through available debug modes\n"
2517 "h dump packets/hex press to cycle through the 3 states\n"
2519 "s Show QP histogram\n"
2526 static void *input_thread(void *arg)
2531 while (!transcoding_finished && ret >= 0) {
2533 ret = av_read_frame(f->ctx, &pkt);
2535 if (ret == AVERROR(EAGAIN)) {
2542 pthread_mutex_lock(&f->fifo_lock);
2543 while (!av_fifo_space(f->fifo))
2544 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2546 av_dup_packet(&pkt);
2547 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2549 pthread_mutex_unlock(&f->fifo_lock);
2556 static void free_input_threads(void)
2560 if (nb_input_files == 1)
2563 transcoding_finished = 1;
2565 for (i = 0; i < nb_input_files; i++) {
2566 InputFile *f = input_files[i];
2569 if (!f->fifo || f->joined)
2572 pthread_mutex_lock(&f->fifo_lock);
2573 while (av_fifo_size(f->fifo)) {
2574 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2575 av_free_packet(&pkt);
2577 pthread_cond_signal(&f->fifo_cond);
2578 pthread_mutex_unlock(&f->fifo_lock);
2580 pthread_join(f->thread, NULL);
2583 while (av_fifo_size(f->fifo)) {
2584 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2585 av_free_packet(&pkt);
2587 av_fifo_free(f->fifo);
2591 static int init_input_threads(void)
2595 if (nb_input_files == 1)
2598 for (i = 0; i < nb_input_files; i++) {
2599 InputFile *f = input_files[i];
2601 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2602 return AVERROR(ENOMEM);
2604 pthread_mutex_init(&f->fifo_lock, NULL);
2605 pthread_cond_init (&f->fifo_cond, NULL);
2607 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2608 return AVERROR(ret);
2613 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2617 pthread_mutex_lock(&f->fifo_lock);
2619 if (av_fifo_size(f->fifo)) {
2620 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2621 pthread_cond_signal(&f->fifo_cond);
2626 ret = AVERROR(EAGAIN);
2629 pthread_mutex_unlock(&f->fifo_lock);
2635 static int get_input_packet(InputFile *f, AVPacket *pkt)
2638 if (nb_input_files > 1)
2639 return get_input_packet_mt(f, pkt);
2641 return av_read_frame(f->ctx, pkt);
2644 static int got_eagain(void)
2647 for (i = 0; i < nb_output_streams; i++)
2648 if (output_streams[i]->unavailable)
2653 static void reset_eagain(void)
2656 for (i = 0; i < nb_input_files; i++)
2657 input_files[i]->eagain = 0;
2658 for (i = 0; i < nb_output_streams; i++)
2659 output_streams[i]->unavailable = 0;
2662 static void close_output_stream(OutputStream *ost)
2664 OutputFile *of = output_files[ost->file_index];
2669 for (i = 0; i < of->ctx->nb_streams; i++)
2670 output_streams[of->ost_index + i]->finished = 1;
2676 * - 0 -- one packet was read and processed
2677 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2678 * this function should be called again
2679 * - AVERROR_EOF -- this function should not be called again
2681 static int process_input(int file_index)
2683 InputFile *ifile = input_files[file_index];
2684 AVFormatContext *is;
2690 ret = get_input_packet(ifile, &pkt);
2692 if (ret == AVERROR(EAGAIN)) {
2697 if (ret != AVERROR_EOF) {
2698 print_error(is->filename, ret);
2702 ifile->eof_reached = 1;
2704 for (i = 0; i < ifile->nb_streams; i++) {
2705 ist = input_streams[ifile->ist_index + i];
2706 if (ist->decoding_needed)
2707 output_packet(ist, NULL);
2709 /* mark all outputs that don't go through lavfi as finished */
2710 for (j = 0; j < nb_output_streams; j++) {
2711 OutputStream *ost = output_streams[j];
2713 if (ost->source_index == ifile->ist_index + i &&
2714 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2715 close_output_stream(ost);
2719 return AVERROR(EAGAIN);
2725 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2726 is->streams[pkt.stream_index]);
2728 /* the following test is needed in case new streams appear
2729 dynamically in stream : we ignore them */
2730 if (pkt.stream_index >= ifile->nb_streams) {
2731 report_new_stream(file_index, &pkt);
2732 goto discard_packet;
2735 ist = input_streams[ifile->ist_index + pkt.stream_index];
2737 goto discard_packet;
2739 if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2740 uint64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2741 uint64_t stime2= stime + (1LL<<ist->st->pts_wrap_bits);
2742 ist->wrap_correction_done = 1;
2743 if(pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime && pkt.dts - stime > stime2 - pkt.dts) {
2744 pkt.dts -= 1LL<<ist->st->pts_wrap_bits;
2745 ist->wrap_correction_done = 0;
2747 if(pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime && pkt.pts - stime > stime2 - pkt.pts) {
2748 pkt.pts -= 1LL<<ist->st->pts_wrap_bits;
2749 ist->wrap_correction_done = 0;
2753 if (pkt.dts != AV_NOPTS_VALUE)
2754 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2755 if (pkt.pts != AV_NOPTS_VALUE)
2756 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2758 if (pkt.pts != AV_NOPTS_VALUE)
2759 pkt.pts *= ist->ts_scale;
2760 if (pkt.dts != AV_NOPTS_VALUE)
2761 pkt.dts *= ist->ts_scale;
2764 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2765 "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",
2766 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2767 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2768 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2769 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2770 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2771 input_files[ist->file_index]->ts_offset);
2774 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2776 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2777 int64_t delta = pkt_dts - ist->next_dts;
2778 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2779 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2780 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2781 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2782 pkt_dts+1<ist->pts){
2783 ifile->ts_offset -= delta;
2784 av_log(NULL, AV_LOG_DEBUG,
2785 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2786 delta, ifile->ts_offset);
2787 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2788 if (pkt.pts != AV_NOPTS_VALUE)
2789 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2792 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2793 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2795 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2796 pkt.dts = AV_NOPTS_VALUE;
2798 if (pkt.pts != AV_NOPTS_VALUE){
2799 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2800 delta = pkt_pts - ist->next_dts;
2801 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2802 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2804 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2805 pkt.pts = AV_NOPTS_VALUE;
2811 sub2video_heartbeat(ist, pkt.pts);
2813 ret = output_packet(ist, &pkt);
2816 av_strerror(ret, buf, sizeof(buf));
2817 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2818 ist->file_index, ist->st->index, buf);
2824 av_free_packet(&pkt);
2830 * Perform a step of transcoding for the specified filter graph.
2832 * @param[in] graph filter graph to consider
2833 * @param[out] best_ist input stream where a frame would allow to continue
2834 * @return 0 for success, <0 for error
2836 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2839 int nb_requests, nb_requests_max = 0;
2840 InputFilter *ifilter;
2844 ret = avfilter_graph_request_oldest(graph->graph);
2846 return reap_filters();
2848 if (ret == AVERROR_EOF) {
2849 ret = reap_filters();
2850 for (i = 0; i < graph->nb_outputs; i++)
2851 close_output_stream(graph->outputs[i]->ost);
2854 if (ret != AVERROR(EAGAIN))
2857 for (i = 0; i < graph->nb_inputs; i++) {
2858 ifilter = graph->inputs[i];
2860 if (input_files[ist->file_index]->eagain ||
2861 input_files[ist->file_index]->eof_reached)
2863 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2864 if (nb_requests > nb_requests_max) {
2865 nb_requests_max = nb_requests;
2871 for (i = 0; i < graph->nb_outputs; i++)
2872 graph->outputs[i]->ost->unavailable = 1;
2878 * Run a single step of transcoding.
2880 * @return 0 for success, <0 for error
2882 static int transcode_step(void)
2888 ost = choose_output();
2895 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2900 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2905 av_assert0(ost->source_index >= 0);
2906 ist = input_streams[ost->source_index];
2909 ret = process_input(ist->file_index);
2910 if (ret == AVERROR(EAGAIN)) {
2911 if (input_files[ist->file_index]->eagain)
2912 ost->unavailable = 1;
2916 return ret == AVERROR_EOF ? 0 : ret;
2918 return reap_filters();
2922 * The following code is the main loop of the file converter
2924 static int transcode(void)
2927 AVFormatContext *os;
2930 int64_t timer_start;
2932 ret = transcode_init();
2936 if (stdin_interaction) {
2937 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2940 timer_start = av_gettime();
2943 if ((ret = init_input_threads()) < 0)
2947 while (!received_sigterm) {
2948 int64_t cur_time= av_gettime();
2950 /* if 'q' pressed, exits */
2951 if (stdin_interaction)
2952 if (check_keyboard_interaction(cur_time) < 0)
2955 /* check if there's any stream where output is still needed */
2956 if (!need_output()) {
2957 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2961 ret = transcode_step();
2963 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2966 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2970 /* dump report by using the output first video and audio streams */
2971 print_report(0, timer_start, cur_time);
2974 free_input_threads();
2977 /* at the end of stream, we must flush the decoder buffers */
2978 for (i = 0; i < nb_input_streams; i++) {
2979 ist = input_streams[i];
2980 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2981 output_packet(ist, NULL);
2988 /* write the trailer if needed and close file */
2989 for (i = 0; i < nb_output_files; i++) {
2990 os = output_files[i]->ctx;
2991 av_write_trailer(os);
2994 /* dump report by using the first video and audio streams */
2995 print_report(1, timer_start, av_gettime());
2997 /* close each encoder */
2998 for (i = 0; i < nb_output_streams; i++) {
2999 ost = output_streams[i];
3000 if (ost->encoding_needed) {
3001 av_freep(&ost->st->codec->stats_in);
3002 avcodec_close(ost->st->codec);
3006 /* close each decoder */
3007 for (i = 0; i < nb_input_streams; i++) {
3008 ist = input_streams[i];
3009 if (ist->decoding_needed) {
3010 avcodec_close(ist->st->codec);
3019 free_input_threads();
3022 if (output_streams) {
3023 for (i = 0; i < nb_output_streams; i++) {
3024 ost = output_streams[i];
3026 if (ost->stream_copy)
3027 av_freep(&ost->st->codec->extradata);
3029 fclose(ost->logfile);
3030 ost->logfile = NULL;
3032 av_freep(&ost->st->codec->subtitle_header);
3033 av_free(ost->forced_kf_pts);
3034 av_dict_free(&ost->opts);
3042 static int64_t getutime(void)
3045 struct rusage rusage;
3047 getrusage(RUSAGE_SELF, &rusage);
3048 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3049 #elif HAVE_GETPROCESSTIMES
3051 FILETIME c, e, k, u;
3052 proc = GetCurrentProcess();
3053 GetProcessTimes(proc, &c, &e, &k, &u);
3054 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3056 return av_gettime();
3060 static int64_t getmaxrss(void)
3062 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3063 struct rusage rusage;
3064 getrusage(RUSAGE_SELF, &rusage);
3065 return (int64_t)rusage.ru_maxrss * 1024;
3066 #elif HAVE_GETPROCESSMEMORYINFO
3068 PROCESS_MEMORY_COUNTERS memcounters;
3069 proc = GetCurrentProcess();
3070 memcounters.cb = sizeof(memcounters);
3071 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3072 return memcounters.PeakPagefileUsage;
3078 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3082 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3084 int idx = locate_option(argc, argv, options, "cpuflags");
3085 if (idx && argv[idx + 1])
3086 opt_cpuflags("cpuflags", argv[idx + 1]);
3089 int main(int argc, char **argv)
3091 OptionsContext o = { 0 };
3094 reset_options(&o, 0);
3096 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3097 parse_loglevel(argc, argv, options);
3099 if(argc>1 && !strcmp(argv[1], "-d")){
3101 av_log_set_callback(log_callback_null);
3106 avcodec_register_all();
3108 avdevice_register_all();
3110 avfilter_register_all();
3112 avformat_network_init();
3114 show_banner(argc, argv, options);
3118 parse_cpuflags(argc, argv, options);
3121 parse_options(&o, argc, argv, options, opt_output_file);
3123 if (nb_output_files <= 0 && nb_input_files == 0) {
3125 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3129 /* file converter / grab */
3130 if (nb_output_files <= 0) {
3131 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3135 // if (nb_input_files == 0) {
3136 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3140 current_time = ti = getutime();
3141 if (transcode() < 0)
3143 ti = getutime() - ti;
3145 int maxrss = getmaxrss() / 1024;
3146 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);