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/channel_layout.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/buffersrc.h"
68 # include "libavfilter/buffersink.h"
70 #if HAVE_SYS_RESOURCE_H
72 #include <sys/types.h>
73 #include <sys/resource.h>
74 #elif HAVE_GETPROCESSTIMES
77 #if HAVE_GETPROCESSMEMORYINFO
83 #include <sys/select.h>
88 #include <sys/ioctl.h>
102 #include "cmdutils.h"
104 #include "libavutil/avassert.h"
106 const char program_name[] = "ffmpeg";
107 const int program_birth_year = 2000;
109 static FILE *vstats_file;
111 const char *const forced_keyframes_const_names[] = {
120 static void do_video_stats(OutputStream *ost, int frame_size);
121 static int64_t getutime(void);
122 static int64_t getmaxrss(void);
124 static int run_as_daemon = 0;
125 static int64_t video_size = 0;
126 static int64_t audio_size = 0;
127 static int64_t subtitle_size = 0;
128 static int64_t extra_size = 0;
129 static int nb_frames_dup = 0;
130 static int nb_frames_drop = 0;
131 static int64_t decode_error_stat[2];
133 static int current_time;
134 AVIOContext *progress_avio = NULL;
136 static uint8_t *subtitle_out;
139 /* signal to input threads that they should exit; set by the main thread */
140 static int transcoding_finished;
143 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
145 InputStream **input_streams = NULL;
146 int nb_input_streams = 0;
147 InputFile **input_files = NULL;
148 int nb_input_files = 0;
150 OutputStream **output_streams = NULL;
151 int nb_output_streams = 0;
152 OutputFile **output_files = NULL;
153 int nb_output_files = 0;
155 FilterGraph **filtergraphs;
160 /* init terminal so that we can grab keys */
161 static struct termios oldtty;
162 static int restore_tty;
167 Convert subtitles to video with alpha to insert them in filter graphs.
168 This is a temporary solution until libavfilter gets real subtitles support.
171 static int sub2video_get_blank_frame(InputStream *ist)
174 AVFrame *frame = ist->sub2video.frame;
176 av_frame_unref(frame);
177 ist->sub2video.frame->width = ist->sub2video.w;
178 ist->sub2video.frame->height = ist->sub2video.h;
179 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
180 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
182 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
186 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
189 uint32_t *pal, *dst2;
193 if (r->type != SUBTITLE_BITMAP) {
194 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
197 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
198 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
202 dst += r->y * dst_linesize + r->x * 4;
203 src = r->pict.data[0];
204 pal = (uint32_t *)r->pict.data[1];
205 for (y = 0; y < r->h; y++) {
206 dst2 = (uint32_t *)dst;
208 for (x = 0; x < r->w; x++)
209 *(dst2++) = pal[*(src2++)];
211 src += r->pict.linesize[0];
215 static void sub2video_push_ref(InputStream *ist, int64_t pts)
217 AVFrame *frame = ist->sub2video.frame;
220 av_assert1(frame->data[0]);
221 ist->sub2video.last_pts = frame->pts = pts;
222 for (i = 0; i < ist->nb_filters; i++)
223 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
224 AV_BUFFERSRC_FLAG_KEEP_REF |
225 AV_BUFFERSRC_FLAG_PUSH);
228 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
230 int w = ist->sub2video.w, h = ist->sub2video.h;
231 AVFrame *frame = ist->sub2video.frame;
235 int64_t pts, end_pts;
240 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
241 AV_TIME_BASE_Q, ist->st->time_base);
242 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
243 AV_TIME_BASE_Q, ist->st->time_base);
244 num_rects = sub->num_rects;
246 pts = ist->sub2video.end_pts;
250 if (sub2video_get_blank_frame(ist) < 0) {
251 av_log(ist->st->codec, AV_LOG_ERROR,
252 "Impossible to get a blank canvas.\n");
255 dst = frame->data [0];
256 dst_linesize = frame->linesize[0];
257 for (i = 0; i < num_rects; i++)
258 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
259 sub2video_push_ref(ist, pts);
260 ist->sub2video.end_pts = end_pts;
263 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
265 InputFile *infile = input_files[ist->file_index];
269 /* When a frame is read from a file, examine all sub2video streams in
270 the same file and send the sub2video frame again. Otherwise, decoded
271 video frames could be accumulating in the filter graph while a filter
272 (possibly overlay) is desperately waiting for a subtitle frame. */
273 for (i = 0; i < infile->nb_streams; i++) {
274 InputStream *ist2 = input_streams[infile->ist_index + i];
275 if (!ist2->sub2video.frame)
277 /* subtitles seem to be usually muxed ahead of other streams;
278 if not, substracting a larger time here is necessary */
279 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
280 /* do not send the heartbeat frame if the subtitle is already ahead */
281 if (pts2 <= ist2->sub2video.last_pts)
283 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
284 sub2video_update(ist2, NULL);
285 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
286 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
288 sub2video_push_ref(ist2, pts2);
292 static void sub2video_flush(InputStream *ist)
296 for (i = 0; i < ist->nb_filters; i++)
297 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
300 /* end of sub2video hack */
304 av_log(NULL, AV_LOG_QUIET, "%s", "");
307 tcsetattr (0, TCSANOW, &oldtty);
311 static volatile int received_sigterm = 0;
312 static volatile int received_nb_signals = 0;
315 sigterm_handler(int sig)
317 received_sigterm = sig;
318 received_nb_signals++;
320 if(received_nb_signals > 3)
331 istty = isatty(0) && isatty(2);
333 if (istty && tcgetattr (0, &tty) == 0) {
338 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
339 |INLCR|IGNCR|ICRNL|IXON);
340 tty.c_oflag |= OPOST;
341 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
342 tty.c_cflag &= ~(CSIZE|PARENB);
347 tcsetattr (0, TCSANOW, &tty);
349 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
352 avformat_network_deinit();
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
357 signal(SIGXCPU, sigterm_handler);
361 /* read a key without blocking */
362 static int read_key(void)
374 n = select(1, &rfds, NULL, NULL, &tv);
383 # if HAVE_PEEKNAMEDPIPE
385 static HANDLE input_handle;
388 input_handle = GetStdHandle(STD_INPUT_HANDLE);
389 is_pipe = !GetConsoleMode(input_handle, &dw);
392 if (stdin->_cnt > 0) {
397 /* When running under a GUI, you will end here. */
398 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
399 // input pipe may have been closed by the program that ran ffmpeg
417 static int decode_interrupt_cb(void *ctx)
419 return received_nb_signals > 1;
422 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
424 static void exit_program(void)
429 int maxrss = getmaxrss() / 1024;
430 printf("bench: maxrss=%ikB\n", maxrss);
433 for (i = 0; i < nb_filtergraphs; i++) {
434 avfilter_graph_free(&filtergraphs[i]->graph);
435 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
436 av_freep(&filtergraphs[i]->inputs[j]->name);
437 av_freep(&filtergraphs[i]->inputs[j]);
439 av_freep(&filtergraphs[i]->inputs);
440 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
441 av_freep(&filtergraphs[i]->outputs[j]->name);
442 av_freep(&filtergraphs[i]->outputs[j]);
444 av_freep(&filtergraphs[i]->outputs);
445 av_freep(&filtergraphs[i]->graph_desc);
446 av_freep(&filtergraphs[i]);
448 av_freep(&filtergraphs);
450 av_freep(&subtitle_out);
453 for (i = 0; i < nb_output_files; i++) {
454 AVFormatContext *s = output_files[i]->ctx;
455 if (s && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
457 avformat_free_context(s);
458 av_dict_free(&output_files[i]->opts);
459 av_freep(&output_files[i]);
461 for (i = 0; i < nb_output_streams; i++) {
462 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
464 AVBitStreamFilterContext *next = bsfc->next;
465 av_bitstream_filter_close(bsfc);
468 output_streams[i]->bitstream_filters = NULL;
469 avcodec_free_frame(&output_streams[i]->filtered_frame);
471 av_freep(&output_streams[i]->forced_keyframes);
472 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
473 av_freep(&output_streams[i]->avfilter);
474 av_freep(&output_streams[i]->logfile_prefix);
475 av_freep(&output_streams[i]);
477 for (i = 0; i < nb_input_files; i++) {
478 avformat_close_input(&input_files[i]->ctx);
479 av_freep(&input_files[i]);
481 for (i = 0; i < nb_input_streams; i++) {
482 av_frame_free(&input_streams[i]->decoded_frame);
483 av_frame_free(&input_streams[i]->filter_frame);
484 av_dict_free(&input_streams[i]->opts);
485 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
486 av_frame_free(&input_streams[i]->sub2video.frame);
487 av_freep(&input_streams[i]->filters);
488 av_freep(&input_streams[i]);
493 av_free(vstats_filename);
495 av_freep(&input_streams);
496 av_freep(&input_files);
497 av_freep(&output_streams);
498 av_freep(&output_files);
502 avformat_network_deinit();
504 if (received_sigterm) {
505 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
506 (int) received_sigterm);
510 void assert_avoptions(AVDictionary *m)
512 AVDictionaryEntry *t;
513 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
514 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
519 static void abort_codec_experimental(AVCodec *c, int encoder)
524 static void update_benchmark(const char *fmt, ...)
526 if (do_benchmark_all) {
527 int64_t t = getutime();
533 vsnprintf(buf, sizeof(buf), fmt, va);
535 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
541 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
543 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
544 AVCodecContext *avctx = ost->st->codec;
547 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
548 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
549 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
552 * Audio encoders may split the packets -- #frames in != #packets out.
553 * But there is no reordering, so we can limit the number of output packets
554 * by simply dropping them here.
555 * Counting encoded video frames needs to be done separately because of
556 * reordering, see do_video_out()
558 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
559 if (ost->frame_number >= ost->max_frames) {
567 AVPacket new_pkt = *pkt;
568 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
569 &new_pkt.data, &new_pkt.size,
570 pkt->data, pkt->size,
571 pkt->flags & AV_PKT_FLAG_KEY);
572 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
573 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
575 memcpy(t, new_pkt.data, new_pkt.size);
576 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
585 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
586 av_buffer_default_free, NULL, 0);
590 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
591 bsfc->filter->name, pkt->stream_index,
592 avctx->codec ? avctx->codec->name : "copy");
602 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
603 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
604 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
605 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
606 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
607 if(pkt->pts >= pkt->dts)
608 pkt->pts = FFMAX(pkt->pts, max);
613 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
614 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
615 pkt->dts != AV_NOPTS_VALUE &&
616 ost->last_mux_dts != AV_NOPTS_VALUE) {
617 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
618 if (pkt->dts < max) {
619 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
620 av_log(s, loglevel, "Non-monotonous DTS in output stream "
621 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
622 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
624 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
627 av_log(s, loglevel, "changing to %"PRId64". This may result "
628 "in incorrect timestamps in the output file.\n",
630 if(pkt->pts >= pkt->dts)
631 pkt->pts = FFMAX(pkt->pts, max);
635 ost->last_mux_dts = pkt->dts;
637 pkt->stream_index = ost->index;
640 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
641 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
642 av_get_media_type_string(ost->st->codec->codec_type),
643 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
644 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
649 ret = av_interleaved_write_frame(s, pkt);
651 print_error("av_interleaved_write_frame()", ret);
656 static void close_output_stream(OutputStream *ost)
658 OutputFile *of = output_files[ost->file_index];
662 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
663 of->recording_time = FFMIN(of->recording_time, end);
667 static int check_recording_time(OutputStream *ost)
669 OutputFile *of = output_files[ost->file_index];
671 if (of->recording_time != INT64_MAX &&
672 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
673 AV_TIME_BASE_Q) >= 0) {
674 close_output_stream(ost);
680 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
683 AVCodecContext *enc = ost->st->codec;
687 av_init_packet(&pkt);
691 if (!check_recording_time(ost))
694 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
695 frame->pts = ost->sync_opts;
696 ost->sync_opts = frame->pts + frame->nb_samples;
698 av_assert0(pkt.size || !pkt.data);
699 update_benchmark(NULL);
700 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
701 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
704 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
707 if (pkt.pts != AV_NOPTS_VALUE)
708 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
709 if (pkt.dts != AV_NOPTS_VALUE)
710 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
711 if (pkt.duration > 0)
712 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
715 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
716 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
717 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
718 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
721 audio_size += pkt.size;
722 write_frame(s, &pkt, ost);
724 av_free_packet(&pkt);
728 static void do_subtitle_out(AVFormatContext *s,
733 int subtitle_out_max_size = 1024 * 1024;
734 int subtitle_out_size, nb, i;
739 if (sub->pts == AV_NOPTS_VALUE) {
740 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
746 enc = ost->st->codec;
749 subtitle_out = av_malloc(subtitle_out_max_size);
752 /* Note: DVB subtitle need one packet to draw them and one other
753 packet to clear them */
754 /* XXX: signal it in the codec context ? */
755 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
760 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
761 pts = sub->pts - output_files[ost->file_index]->start_time;
762 for (i = 0; i < nb; i++) {
763 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
764 if (!check_recording_time(ost))
768 // start_display_time is required to be 0
769 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
770 sub->end_display_time -= sub->start_display_time;
771 sub->start_display_time = 0;
774 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
775 subtitle_out_max_size, sub);
776 if (subtitle_out_size < 0) {
777 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
781 av_init_packet(&pkt);
782 pkt.data = subtitle_out;
783 pkt.size = subtitle_out_size;
784 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
785 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
786 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
787 /* XXX: the pts correction is handled here. Maybe handling
788 it in the codec would be better */
790 pkt.pts += 90 * sub->start_display_time;
792 pkt.pts += 90 * sub->end_display_time;
794 subtitle_size += pkt.size;
795 write_frame(s, &pkt, ost);
799 static void do_video_out(AVFormatContext *s,
803 int ret, format_video_sync;
805 AVCodecContext *enc = ost->st->codec;
807 double sync_ipts, delta;
810 InputStream *ist = NULL;
812 if (ost->source_index >= 0)
813 ist = input_streams[ost->source_index];
815 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
816 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
818 sync_ipts = in_picture->pts;
819 delta = sync_ipts - ost->sync_opts + duration;
821 /* by default, we output a single frame */
824 format_video_sync = video_sync_method;
825 if (format_video_sync == VSYNC_AUTO)
826 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
828 switch (format_video_sync) {
830 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
833 else if (delta > 1.1)
834 nb_frames = lrintf(delta);
839 else if (delta > 0.6)
840 ost->sync_opts = lrint(sync_ipts);
843 case VSYNC_PASSTHROUGH:
844 ost->sync_opts = lrint(sync_ipts);
850 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
851 if (nb_frames == 0) {
853 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
855 } else if (nb_frames > 1) {
856 if (nb_frames > dts_error_threshold * 30) {
857 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
861 nb_frames_dup += nb_frames - 1;
862 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
865 /* duplicates frame if needed */
866 for (i = 0; i < nb_frames; i++) {
867 av_init_packet(&pkt);
871 in_picture->pts = ost->sync_opts;
874 if (!check_recording_time(ost))
876 if (ost->frame_number >= ost->max_frames)
880 if (s->oformat->flags & AVFMT_RAWPICTURE &&
881 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
882 /* raw pictures are written as AVPicture structure to
883 avoid any copies. We support temporarily the older
885 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
886 enc->coded_frame->top_field_first = in_picture->top_field_first;
887 if (enc->coded_frame->interlaced_frame)
888 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
890 enc->field_order = AV_FIELD_PROGRESSIVE;
891 pkt.data = (uint8_t *)in_picture;
892 pkt.size = sizeof(AVPicture);
893 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
894 pkt.flags |= AV_PKT_FLAG_KEY;
896 video_size += pkt.size;
897 write_frame(s, &pkt, ost);
899 int got_packet, forced_keyframe = 0;
902 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
903 ost->top_field_first >= 0)
904 in_picture->top_field_first = !!ost->top_field_first;
906 if (in_picture->interlaced_frame) {
907 if (enc->codec->id == AV_CODEC_ID_MJPEG)
908 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
910 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
912 enc->field_order = AV_FIELD_PROGRESSIVE;
914 in_picture->quality = ost->st->codec->global_quality;
915 if (!enc->me_threshold)
916 in_picture->pict_type = 0;
918 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
919 in_picture->pts * av_q2d(enc->time_base) : NAN;
920 if (ost->forced_kf_index < ost->forced_kf_count &&
921 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
922 ost->forced_kf_index++;
924 } else if (ost->forced_keyframes_pexpr) {
926 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
927 res = av_expr_eval(ost->forced_keyframes_pexpr,
928 ost->forced_keyframes_expr_const_values, NULL);
929 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
930 ost->forced_keyframes_expr_const_values[FKF_N],
931 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
932 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
933 ost->forced_keyframes_expr_const_values[FKF_T],
934 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
938 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
939 ost->forced_keyframes_expr_const_values[FKF_N];
940 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
941 ost->forced_keyframes_expr_const_values[FKF_T];
942 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
945 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
947 if (forced_keyframe) {
948 in_picture->pict_type = AV_PICTURE_TYPE_I;
949 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
952 update_benchmark(NULL);
953 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
954 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
956 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
961 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
962 pkt.pts = ost->sync_opts;
964 if (pkt.pts != AV_NOPTS_VALUE)
965 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
966 if (pkt.dts != AV_NOPTS_VALUE)
967 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
970 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
971 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
972 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
973 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
976 frame_size = pkt.size;
977 video_size += pkt.size;
978 write_frame(s, &pkt, ost);
979 av_free_packet(&pkt);
981 /* if two pass, output log */
982 if (ost->logfile && enc->stats_out) {
983 fprintf(ost->logfile, "%s", enc->stats_out);
989 * For video, number of frames in == number of packets out.
990 * But there may be reordering, so we can't throw away frames on encoder
991 * flush, we need to limit them here, before they go into encoder.
995 if (vstats_filename && frame_size)
996 do_video_stats(ost, frame_size);
1000 static double psnr(double d)
1002 return -10.0 * log(d) / log(10.0);
1005 static void do_video_stats(OutputStream *ost, int frame_size)
1007 AVCodecContext *enc;
1009 double ti1, bitrate, avg_bitrate;
1011 /* this is executed just the first time do_video_stats is called */
1013 vstats_file = fopen(vstats_filename, "w");
1020 enc = ost->st->codec;
1021 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1022 frame_number = ost->st->nb_frames;
1023 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1024 if (enc->flags&CODEC_FLAG_PSNR)
1025 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1027 fprintf(vstats_file,"f_size= %6d ", frame_size);
1028 /* compute pts value */
1029 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1033 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1034 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1035 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1036 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1037 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1042 * Get and encode new output from any of the filtergraphs, without causing
1045 * @return 0 for success, <0 for severe errors
1047 static int reap_filters(void)
1049 AVFrame *filtered_frame = NULL;
1053 /* Reap all buffers present in the buffer sinks */
1054 for (i = 0; i < nb_output_streams; i++) {
1055 OutputStream *ost = output_streams[i];
1056 OutputFile *of = output_files[ost->file_index];
1062 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1063 return AVERROR(ENOMEM);
1065 avcodec_get_frame_defaults(ost->filtered_frame);
1066 filtered_frame = ost->filtered_frame;
1069 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1070 AV_BUFFERSINK_FLAG_NO_REQUEST);
1072 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1073 av_log(NULL, AV_LOG_WARNING,
1074 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1078 frame_pts = AV_NOPTS_VALUE;
1079 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1080 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1081 ost->filter->filter->inputs[0]->time_base,
1082 ost->st->codec->time_base) -
1083 av_rescale_q(of->start_time,
1085 ost->st->codec->time_base);
1087 //if (ost->source_index >= 0)
1088 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1091 switch (ost->filter->filter->inputs[0]->type) {
1092 case AVMEDIA_TYPE_VIDEO:
1093 filtered_frame->pts = frame_pts;
1094 if (!ost->frame_aspect_ratio.num)
1095 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1097 do_video_out(of->ctx, ost, filtered_frame);
1099 case AVMEDIA_TYPE_AUDIO:
1100 filtered_frame->pts = frame_pts;
1101 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1102 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1103 av_log(NULL, AV_LOG_ERROR,
1104 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1107 do_audio_out(of->ctx, ost, filtered_frame);
1110 // TODO support subtitle filters
1114 av_frame_unref(filtered_frame);
1121 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1124 AVBPrint buf_script;
1126 AVFormatContext *oc;
1128 AVCodecContext *enc;
1129 int frame_number, vid, i;
1131 int64_t pts = INT64_MIN;
1132 static int64_t last_time = -1;
1133 static int qp_histogram[52];
1134 int hours, mins, secs, us;
1136 if (!print_stats && !is_last_report && !progress_avio)
1139 if (!is_last_report) {
1140 if (last_time == -1) {
1141 last_time = cur_time;
1144 if ((cur_time - last_time) < 500000)
1146 last_time = cur_time;
1150 oc = output_files[0]->ctx;
1152 total_size = avio_size(oc->pb);
1153 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1154 total_size = avio_tell(oc->pb);
1158 av_bprint_init(&buf_script, 0, 1);
1159 for (i = 0; i < nb_output_streams; i++) {
1161 ost = output_streams[i];
1162 enc = ost->st->codec;
1163 if (!ost->stream_copy && enc->coded_frame)
1164 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1165 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1166 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1167 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1168 ost->file_index, ost->index, q);
1170 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1171 float fps, t = (cur_time-timer_start) / 1000000.0;
1173 frame_number = ost->frame_number;
1174 fps = t > 1 ? frame_number / t : 0;
1175 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1176 frame_number, fps < 9.95, fps, q);
1177 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1178 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1179 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1180 ost->file_index, ost->index, q);
1182 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1186 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1188 for (j = 0; j < 32; j++)
1189 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1191 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1193 double error, error_sum = 0;
1194 double scale, scale_sum = 0;
1196 char type[3] = { 'Y','U','V' };
1197 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1198 for (j = 0; j < 3; j++) {
1199 if (is_last_report) {
1200 error = enc->error[j];
1201 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1203 error = enc->coded_frame->error[j];
1204 scale = enc->width * enc->height * 255.0 * 255.0;
1210 p = psnr(error / scale);
1211 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1212 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1213 ost->file_index, ost->index, type[j] | 32, p);
1215 p = psnr(error_sum / scale_sum);
1216 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1217 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1218 ost->file_index, ost->index, p);
1222 /* compute min output value */
1223 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1224 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1225 ost->st->time_base, AV_TIME_BASE_Q));
1228 secs = pts / AV_TIME_BASE;
1229 us = pts % AV_TIME_BASE;
1235 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1237 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1239 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1240 "size=%8.0fkB time=", total_size / 1024.0);
1241 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1242 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1243 (100 * us) / AV_TIME_BASE);
1244 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1246 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1247 "bitrate=%6.1fkbits/s", bitrate);
1248 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1249 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1250 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1251 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1252 hours, mins, secs, us);
1254 if (nb_frames_dup || nb_frames_drop)
1255 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1256 nb_frames_dup, nb_frames_drop);
1257 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1258 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1260 if (print_stats || is_last_report) {
1261 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1262 fprintf(stderr, "%s \r", buf);
1264 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1269 if (progress_avio) {
1270 av_bprintf(&buf_script, "progress=%s\n",
1271 is_last_report ? "end" : "continue");
1272 avio_write(progress_avio, buf_script.str,
1273 FFMIN(buf_script.len, buf_script.size - 1));
1274 avio_flush(progress_avio);
1275 av_bprint_finalize(&buf_script, NULL);
1276 if (is_last_report) {
1277 avio_close(progress_avio);
1278 progress_avio = NULL;
1282 if (is_last_report) {
1283 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1284 av_log(NULL, AV_LOG_INFO, "\n");
1285 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1286 video_size / 1024.0,
1287 audio_size / 1024.0,
1288 subtitle_size / 1024.0,
1289 extra_size / 1024.0,
1290 100.0 * (total_size - raw) / raw
1292 if(video_size + audio_size + subtitle_size + extra_size == 0){
1293 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1298 static void flush_encoders(void)
1302 for (i = 0; i < nb_output_streams; i++) {
1303 OutputStream *ost = output_streams[i];
1304 AVCodecContext *enc = ost->st->codec;
1305 AVFormatContext *os = output_files[ost->file_index]->ctx;
1306 int stop_encoding = 0;
1308 if (!ost->encoding_needed)
1311 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1313 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1317 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1321 switch (ost->st->codec->codec_type) {
1322 case AVMEDIA_TYPE_AUDIO:
1323 encode = avcodec_encode_audio2;
1327 case AVMEDIA_TYPE_VIDEO:
1328 encode = avcodec_encode_video2;
1339 av_init_packet(&pkt);
1343 update_benchmark(NULL);
1344 ret = encode(enc, &pkt, NULL, &got_packet);
1345 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1347 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1351 if (ost->logfile && enc->stats_out) {
1352 fprintf(ost->logfile, "%s", enc->stats_out);
1358 if (pkt.pts != AV_NOPTS_VALUE)
1359 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1360 if (pkt.dts != AV_NOPTS_VALUE)
1361 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1362 if (pkt.duration > 0)
1363 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1364 write_frame(os, &pkt, ost);
1365 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1366 do_video_stats(ost, pkt.size);
1377 * Check whether a packet from ist should be written into ost at this time
1379 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1381 OutputFile *of = output_files[ost->file_index];
1382 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1384 if (ost->source_index != ist_index)
1387 if (of->start_time && ist->pts < of->start_time)
1393 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1395 OutputFile *of = output_files[ost->file_index];
1396 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1400 av_init_packet(&opkt);
1402 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1403 !ost->copy_initial_nonkeyframes)
1406 if (!ost->frame_number && ist->pts < of->start_time &&
1407 !ost->copy_prior_start)
1410 if (of->recording_time != INT64_MAX &&
1411 ist->pts >= of->recording_time + of->start_time) {
1412 close_output_stream(ost);
1416 /* force the input stream PTS */
1417 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1418 audio_size += pkt->size;
1419 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1420 video_size += pkt->size;
1422 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1423 subtitle_size += pkt->size;
1426 if (pkt->pts != AV_NOPTS_VALUE)
1427 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1429 opkt.pts = AV_NOPTS_VALUE;
1431 if (pkt->dts == AV_NOPTS_VALUE)
1432 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1434 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1435 opkt.dts -= ost_tb_start_time;
1437 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1438 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1440 duration = ist->st->codec->frame_size;
1441 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1442 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1443 ost->st->time_base) - ost_tb_start_time;
1446 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1447 opkt.flags = pkt->flags;
1449 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1450 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1451 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1452 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1453 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1455 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1456 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1461 opkt.data = pkt->data;
1462 opkt.size = pkt->size;
1465 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1466 /* store AVPicture in AVPacket, as expected by the output format */
1467 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1468 opkt.data = (uint8_t *)&pict;
1469 opkt.size = sizeof(AVPicture);
1470 opkt.flags |= AV_PKT_FLAG_KEY;
1473 write_frame(of->ctx, &opkt, ost);
1474 ost->st->codec->frame_number++;
1477 int guess_input_channel_layout(InputStream *ist)
1479 AVCodecContext *dec = ist->st->codec;
1481 if (!dec->channel_layout) {
1482 char layout_name[256];
1484 if (dec->channels > ist->guess_layout_max)
1486 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1487 if (!dec->channel_layout)
1489 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1490 dec->channels, dec->channel_layout);
1491 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1492 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1497 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1499 AVFrame *decoded_frame, *f;
1500 AVCodecContext *avctx = ist->st->codec;
1501 int i, ret, err = 0, resample_changed;
1502 AVRational decoded_frame_tb;
1504 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1505 return AVERROR(ENOMEM);
1506 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1507 return AVERROR(ENOMEM);
1508 decoded_frame = ist->decoded_frame;
1510 update_benchmark(NULL);
1511 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1512 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1514 if (ret >= 0 && avctx->sample_rate <= 0) {
1515 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1516 ret = AVERROR_INVALIDDATA;
1519 if (*got_output || ret<0 || pkt->size)
1520 decode_error_stat[ret<0] ++;
1522 if (!*got_output || ret < 0) {
1524 for (i = 0; i < ist->nb_filters; i++)
1526 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1528 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1535 /* increment next_dts to use for the case where the input stream does not
1536 have timestamps or there are multiple frames in the packet */
1537 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1539 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1543 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1544 ist->resample_channels != avctx->channels ||
1545 ist->resample_channel_layout != decoded_frame->channel_layout ||
1546 ist->resample_sample_rate != decoded_frame->sample_rate;
1547 if (resample_changed) {
1548 char layout1[64], layout2[64];
1550 if (!guess_input_channel_layout(ist)) {
1551 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1552 "layout for Input Stream #%d.%d\n", ist->file_index,
1556 decoded_frame->channel_layout = avctx->channel_layout;
1558 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1559 ist->resample_channel_layout);
1560 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1561 decoded_frame->channel_layout);
1563 av_log(NULL, AV_LOG_INFO,
1564 "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",
1565 ist->file_index, ist->st->index,
1566 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1567 ist->resample_channels, layout1,
1568 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1569 avctx->channels, layout2);
1571 ist->resample_sample_fmt = decoded_frame->format;
1572 ist->resample_sample_rate = decoded_frame->sample_rate;
1573 ist->resample_channel_layout = decoded_frame->channel_layout;
1574 ist->resample_channels = avctx->channels;
1576 for (i = 0; i < nb_filtergraphs; i++)
1577 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1578 FilterGraph *fg = filtergraphs[i];
1580 if (configure_filtergraph(fg) < 0) {
1581 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1584 for (j = 0; j < fg->nb_outputs; j++) {
1585 OutputStream *ost = fg->outputs[j]->ost;
1586 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1587 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1588 av_buffersink_set_frame_size(ost->filter->filter,
1589 ost->st->codec->frame_size);
1594 /* if the decoder provides a pts, use it instead of the last packet pts.
1595 the decoder could be delaying output by a packet or more. */
1596 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1597 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1598 decoded_frame_tb = avctx->time_base;
1599 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1600 decoded_frame->pts = decoded_frame->pkt_pts;
1601 pkt->pts = AV_NOPTS_VALUE;
1602 decoded_frame_tb = ist->st->time_base;
1603 } else if (pkt->pts != AV_NOPTS_VALUE) {
1604 decoded_frame->pts = pkt->pts;
1605 pkt->pts = AV_NOPTS_VALUE;
1606 decoded_frame_tb = ist->st->time_base;
1608 decoded_frame->pts = ist->dts;
1609 decoded_frame_tb = AV_TIME_BASE_Q;
1611 if (decoded_frame->pts != AV_NOPTS_VALUE)
1612 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1613 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1614 (AVRational){1, ist->st->codec->sample_rate});
1615 for (i = 0; i < ist->nb_filters; i++) {
1616 if (i < ist->nb_filters - 1) {
1617 f = ist->filter_frame;
1618 err = av_frame_ref(f, decoded_frame);
1623 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1624 AV_BUFFERSRC_FLAG_PUSH);
1628 decoded_frame->pts = AV_NOPTS_VALUE;
1630 av_frame_unref(ist->filter_frame);
1631 av_frame_unref(decoded_frame);
1632 return err < 0 ? err : ret;
1635 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1637 AVFrame *decoded_frame, *f;
1638 void *buffer_to_free = NULL;
1639 int i, ret = 0, err = 0, resample_changed;
1640 int64_t best_effort_timestamp;
1641 AVRational *frame_sample_aspect;
1643 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1644 return AVERROR(ENOMEM);
1645 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1646 return AVERROR(ENOMEM);
1647 decoded_frame = ist->decoded_frame;
1648 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1650 update_benchmark(NULL);
1651 ret = avcodec_decode_video2(ist->st->codec,
1652 decoded_frame, got_output, pkt);
1653 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1655 if (*got_output || ret<0 || pkt->size)
1656 decode_error_stat[ret<0] ++;
1658 if (!*got_output || ret < 0) {
1660 for (i = 0; i < ist->nb_filters; i++)
1662 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1664 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1670 if(ist->top_field_first>=0)
1671 decoded_frame->top_field_first = ist->top_field_first;
1673 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1674 if(best_effort_timestamp != AV_NOPTS_VALUE)
1675 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1678 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1679 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1680 ist->st->index, av_ts2str(decoded_frame->pts),
1681 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1682 best_effort_timestamp,
1683 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1684 decoded_frame->key_frame, decoded_frame->pict_type);
1689 if (ist->st->sample_aspect_ratio.num)
1690 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1692 resample_changed = ist->resample_width != decoded_frame->width ||
1693 ist->resample_height != decoded_frame->height ||
1694 ist->resample_pix_fmt != decoded_frame->format;
1695 if (resample_changed) {
1696 av_log(NULL, AV_LOG_INFO,
1697 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1698 ist->file_index, ist->st->index,
1699 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1700 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1702 ist->resample_width = decoded_frame->width;
1703 ist->resample_height = decoded_frame->height;
1704 ist->resample_pix_fmt = decoded_frame->format;
1706 for (i = 0; i < nb_filtergraphs; i++) {
1707 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1708 configure_filtergraph(filtergraphs[i]) < 0) {
1709 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1715 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1716 for (i = 0; i < ist->nb_filters; i++) {
1717 if (!frame_sample_aspect->num)
1718 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1720 if (i < ist->nb_filters - 1) {
1721 f = ist->filter_frame;
1722 err = av_frame_ref(f, decoded_frame);
1727 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1729 av_log(NULL, AV_LOG_FATAL,
1730 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1735 av_frame_unref(ist->filter_frame);
1736 av_frame_unref(decoded_frame);
1737 av_free(buffer_to_free);
1738 return err < 0 ? err : ret;
1741 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1743 AVSubtitle subtitle;
1744 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1745 &subtitle, got_output, pkt);
1747 if (*got_output || ret<0 || pkt->size)
1748 decode_error_stat[ret<0] ++;
1750 if (ret < 0 || !*got_output) {
1752 sub2video_flush(ist);
1756 if (ist->fix_sub_duration) {
1757 if (ist->prev_sub.got_output) {
1758 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1759 1000, AV_TIME_BASE);
1760 if (end < ist->prev_sub.subtitle.end_display_time) {
1761 av_log(ist->st->codec, AV_LOG_DEBUG,
1762 "Subtitle duration reduced from %d to %d\n",
1763 ist->prev_sub.subtitle.end_display_time, end);
1764 ist->prev_sub.subtitle.end_display_time = end;
1767 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1768 FFSWAP(int, ret, ist->prev_sub.ret);
1769 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1772 sub2video_update(ist, &subtitle);
1774 if (!*got_output || !subtitle.num_rects)
1777 for (i = 0; i < nb_output_streams; i++) {
1778 OutputStream *ost = output_streams[i];
1780 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1783 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1786 avsubtitle_free(&subtitle);
1790 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1791 static int output_packet(InputStream *ist, const AVPacket *pkt)
1797 if (!ist->saw_first_ts) {
1798 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;
1800 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1801 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1802 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1804 ist->saw_first_ts = 1;
1807 if (ist->next_dts == AV_NOPTS_VALUE)
1808 ist->next_dts = ist->dts;
1809 if (ist->next_pts == AV_NOPTS_VALUE)
1810 ist->next_pts = ist->pts;
1814 av_init_packet(&avpkt);
1822 if (pkt->dts != AV_NOPTS_VALUE) {
1823 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1824 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1825 ist->next_pts = ist->pts = ist->dts;
1828 // while we have more to decode or while the decoder did output something on EOF
1829 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1833 ist->pts = ist->next_pts;
1834 ist->dts = ist->next_dts;
1836 if (avpkt.size && avpkt.size != pkt->size) {
1837 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1838 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1839 ist->showed_multi_packet_warning = 1;
1842 switch (ist->st->codec->codec_type) {
1843 case AVMEDIA_TYPE_AUDIO:
1844 ret = decode_audio (ist, &avpkt, &got_output);
1846 case AVMEDIA_TYPE_VIDEO:
1847 ret = decode_video (ist, &avpkt, &got_output);
1848 if (avpkt.duration) {
1849 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1850 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1851 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1852 duration = ((int64_t)AV_TIME_BASE *
1853 ist->st->codec->time_base.num * ticks) /
1854 ist->st->codec->time_base.den;
1858 if(ist->dts != AV_NOPTS_VALUE && duration) {
1859 ist->next_dts += duration;
1861 ist->next_dts = AV_NOPTS_VALUE;
1864 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1866 case AVMEDIA_TYPE_SUBTITLE:
1867 ret = transcode_subtitles(ist, &avpkt, &got_output);
1877 avpkt.pts= AV_NOPTS_VALUE;
1879 // touch data and size only if not EOF
1881 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1891 /* handle stream copy */
1892 if (!ist->decoding_needed) {
1893 ist->dts = ist->next_dts;
1894 switch (ist->st->codec->codec_type) {
1895 case AVMEDIA_TYPE_AUDIO:
1896 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1897 ist->st->codec->sample_rate;
1899 case AVMEDIA_TYPE_VIDEO:
1900 if (ist->framerate.num) {
1901 // TODO: Remove work-around for c99-to-c89 issue 7
1902 AVRational time_base_q = AV_TIME_BASE_Q;
1903 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1904 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1905 } else if (pkt->duration) {
1906 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1907 } else if(ist->st->codec->time_base.num != 0) {
1908 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1909 ist->next_dts += ((int64_t)AV_TIME_BASE *
1910 ist->st->codec->time_base.num * ticks) /
1911 ist->st->codec->time_base.den;
1915 ist->pts = ist->dts;
1916 ist->next_pts = ist->next_dts;
1918 for (i = 0; pkt && i < nb_output_streams; i++) {
1919 OutputStream *ost = output_streams[i];
1921 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1924 do_streamcopy(ist, ost, pkt);
1930 static void print_sdp(void)
1934 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1938 for (i = 0; i < nb_output_files; i++)
1939 avc[i] = output_files[i]->ctx;
1941 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1942 printf("SDP:\n%s\n", sdp);
1947 static int init_input_stream(int ist_index, char *error, int error_len)
1950 InputStream *ist = input_streams[ist_index];
1952 if (ist->decoding_needed) {
1953 AVCodec *codec = ist->dec;
1955 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1956 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1957 return AVERROR(EINVAL);
1960 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1962 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1963 av_dict_set(&ist->opts, "threads", "auto", 0);
1964 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1965 if (ret == AVERROR_EXPERIMENTAL)
1966 abort_codec_experimental(codec, 0);
1967 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1968 ist->file_index, ist->st->index);
1971 assert_avoptions(ist->opts);
1974 ist->next_pts = AV_NOPTS_VALUE;
1975 ist->next_dts = AV_NOPTS_VALUE;
1981 static InputStream *get_input_stream(OutputStream *ost)
1983 if (ost->source_index >= 0)
1984 return input_streams[ost->source_index];
1988 static int compare_int64(const void *a, const void *b)
1990 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
1991 return va < vb ? -1 : va > vb ? +1 : 0;
1994 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1995 AVCodecContext *avctx)
1998 int n = 1, i, size, index = 0;
2001 for (p = kf; *p; p++)
2005 pts = av_malloc(sizeof(*pts) * size);
2007 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2012 for (i = 0; i < n; i++) {
2013 char *next = strchr(p, ',');
2018 if (!memcmp(p, "chapters", 8)) {
2020 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2023 if (avf->nb_chapters > INT_MAX - size ||
2024 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2026 av_log(NULL, AV_LOG_FATAL,
2027 "Could not allocate forced key frames array.\n");
2030 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2031 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2033 for (j = 0; j < avf->nb_chapters; j++) {
2034 AVChapter *c = avf->chapters[j];
2035 av_assert1(index < size);
2036 pts[index++] = av_rescale_q(c->start, c->time_base,
2037 avctx->time_base) + t;
2042 t = parse_time_or_die("force_key_frames", p, 1);
2043 av_assert1(index < size);
2044 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2051 av_assert0(index == size);
2052 qsort(pts, size, sizeof(*pts), compare_int64);
2053 ost->forced_kf_count = size;
2054 ost->forced_kf_pts = pts;
2057 static void report_new_stream(int input_index, AVPacket *pkt)
2059 InputFile *file = input_files[input_index];
2060 AVStream *st = file->ctx->streams[pkt->stream_index];
2062 if (pkt->stream_index < file->nb_streams_warn)
2064 av_log(file->ctx, AV_LOG_WARNING,
2065 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2066 av_get_media_type_string(st->codec->codec_type),
2067 input_index, pkt->stream_index,
2068 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2069 file->nb_streams_warn = pkt->stream_index + 1;
2072 static int transcode_init(void)
2074 int ret = 0, i, j, k;
2075 AVFormatContext *oc;
2076 AVCodecContext *codec;
2082 /* init framerate emulation */
2083 for (i = 0; i < nb_input_files; i++) {
2084 InputFile *ifile = input_files[i];
2085 if (ifile->rate_emu)
2086 for (j = 0; j < ifile->nb_streams; j++)
2087 input_streams[j + ifile->ist_index]->start = av_gettime();
2090 /* output stream init */
2091 for (i = 0; i < nb_output_files; i++) {
2092 oc = output_files[i]->ctx;
2093 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2094 av_dump_format(oc, i, oc->filename, 1);
2095 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2096 return AVERROR(EINVAL);
2100 /* init complex filtergraphs */
2101 for (i = 0; i < nb_filtergraphs; i++)
2102 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2105 /* for each output stream, we compute the right encoding parameters */
2106 for (i = 0; i < nb_output_streams; i++) {
2107 AVCodecContext *icodec = NULL;
2108 ost = output_streams[i];
2109 oc = output_files[ost->file_index]->ctx;
2110 ist = get_input_stream(ost);
2112 if (ost->attachment_filename)
2115 codec = ost->st->codec;
2118 icodec = ist->st->codec;
2120 ost->st->disposition = ist->st->disposition;
2121 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2122 codec->chroma_sample_location = icodec->chroma_sample_location;
2125 if (ost->stream_copy) {
2126 uint64_t extra_size;
2128 av_assert0(ist && !ost->filter);
2130 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2132 if (extra_size > INT_MAX) {
2133 return AVERROR(EINVAL);
2136 /* if stream_copy is selected, no need to decode or encode */
2137 codec->codec_id = icodec->codec_id;
2138 codec->codec_type = icodec->codec_type;
2140 if (!codec->codec_tag) {
2141 unsigned int codec_tag;
2142 if (!oc->oformat->codec_tag ||
2143 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2144 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2145 codec->codec_tag = icodec->codec_tag;
2148 codec->bit_rate = icodec->bit_rate;
2149 codec->rc_max_rate = icodec->rc_max_rate;
2150 codec->rc_buffer_size = icodec->rc_buffer_size;
2151 codec->field_order = icodec->field_order;
2152 codec->extradata = av_mallocz(extra_size);
2153 if (!codec->extradata) {
2154 return AVERROR(ENOMEM);
2156 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2157 codec->extradata_size= icodec->extradata_size;
2158 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2160 codec->time_base = ist->st->time_base;
2162 * Avi is a special case here because it supports variable fps but
2163 * having the fps and timebase differe significantly adds quite some
2166 if(!strcmp(oc->oformat->name, "avi")) {
2167 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2168 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2169 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2170 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2172 codec->time_base.num = ist->st->r_frame_rate.den;
2173 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2174 codec->ticks_per_frame = 2;
2175 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2176 && av_q2d(ist->st->time_base) < 1.0/500
2178 codec->time_base = icodec->time_base;
2179 codec->time_base.num *= icodec->ticks_per_frame;
2180 codec->time_base.den *= 2;
2181 codec->ticks_per_frame = 2;
2183 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2184 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2185 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2186 && strcmp(oc->oformat->name, "f4v")
2188 if( copy_tb<0 && icodec->time_base.den
2189 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2190 && av_q2d(ist->st->time_base) < 1.0/500
2192 codec->time_base = icodec->time_base;
2193 codec->time_base.num *= icodec->ticks_per_frame;
2196 if ( codec->codec_tag == AV_RL32("tmcd")
2197 && icodec->time_base.num < icodec->time_base.den
2198 && icodec->time_base.num > 0
2199 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2200 codec->time_base = icodec->time_base;
2203 if (ist && !ost->frame_rate.num)
2204 ost->frame_rate = ist->framerate;
2205 if(ost->frame_rate.num)
2206 codec->time_base = av_inv_q(ost->frame_rate);
2208 av_reduce(&codec->time_base.num, &codec->time_base.den,
2209 codec->time_base.num, codec->time_base.den, INT_MAX);
2211 switch (codec->codec_type) {
2212 case AVMEDIA_TYPE_AUDIO:
2213 if (audio_volume != 256) {
2214 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2217 codec->channel_layout = icodec->channel_layout;
2218 codec->sample_rate = icodec->sample_rate;
2219 codec->channels = icodec->channels;
2220 codec->frame_size = icodec->frame_size;
2221 codec->audio_service_type = icodec->audio_service_type;
2222 codec->block_align = icodec->block_align;
2223 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2224 codec->block_align= 0;
2225 if(codec->codec_id == AV_CODEC_ID_AC3)
2226 codec->block_align= 0;
2228 case AVMEDIA_TYPE_VIDEO:
2229 codec->pix_fmt = icodec->pix_fmt;
2230 codec->width = icodec->width;
2231 codec->height = icodec->height;
2232 codec->has_b_frames = icodec->has_b_frames;
2233 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2234 codec->sample_aspect_ratio =
2235 ost->st->sample_aspect_ratio =
2236 av_mul_q(ost->frame_aspect_ratio,
2237 (AVRational){ codec->height, codec->width });
2238 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2239 "with stream copy may produce invalid files\n");
2240 } else if (!codec->sample_aspect_ratio.num) {
2241 codec->sample_aspect_ratio =
2242 ost->st->sample_aspect_ratio =
2243 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2244 ist->st->codec->sample_aspect_ratio.num ?
2245 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2247 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2249 case AVMEDIA_TYPE_SUBTITLE:
2250 codec->width = icodec->width;
2251 codec->height = icodec->height;
2253 case AVMEDIA_TYPE_DATA:
2254 case AVMEDIA_TYPE_ATTACHMENT:
2261 ost->enc = avcodec_find_encoder(codec->codec_id);
2263 /* should only happen when a default codec is not present. */
2264 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2265 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2266 ret = AVERROR(EINVAL);
2271 ist->decoding_needed++;
2272 ost->encoding_needed = 1;
2275 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2276 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2278 fg = init_simple_filtergraph(ist, ost);
2279 if (configure_filtergraph(fg)) {
2280 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2285 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2286 if (ost->filter && !ost->frame_rate.num)
2287 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2288 if (ist && !ost->frame_rate.num)
2289 ost->frame_rate = ist->framerate;
2290 if (ist && !ost->frame_rate.num)
2291 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2292 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2293 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2294 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2295 ost->frame_rate = ost->enc->supported_framerates[idx];
2299 switch (codec->codec_type) {
2300 case AVMEDIA_TYPE_AUDIO:
2301 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2302 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2303 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2304 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2305 codec->time_base = (AVRational){ 1, codec->sample_rate };
2307 case AVMEDIA_TYPE_VIDEO:
2308 codec->time_base = av_inv_q(ost->frame_rate);
2309 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2310 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2311 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2312 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2313 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2314 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2316 for (j = 0; j < ost->forced_kf_count; j++)
2317 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2321 codec->width = ost->filter->filter->inputs[0]->w;
2322 codec->height = ost->filter->filter->inputs[0]->h;
2323 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2324 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2325 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2326 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2327 if (!strncmp(ost->enc->name, "libx264", 7) &&
2328 codec->pix_fmt == AV_PIX_FMT_NONE &&
2329 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2330 av_log(NULL, AV_LOG_INFO,
2331 "No pixel format specified, %s for H.264 encoding chosen.\n"
2332 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2333 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2334 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2337 codec->width != icodec->width ||
2338 codec->height != icodec->height ||
2339 codec->pix_fmt != icodec->pix_fmt) {
2340 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2343 if (ost->forced_keyframes) {
2344 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2345 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2346 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2348 av_log(NULL, AV_LOG_ERROR,
2349 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2352 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2353 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2354 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2355 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2357 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2361 case AVMEDIA_TYPE_SUBTITLE:
2362 codec->time_base = (AVRational){1, 1000};
2363 if (!codec->width) {
2364 codec->width = input_streams[ost->source_index]->st->codec->width;
2365 codec->height = input_streams[ost->source_index]->st->codec->height;
2373 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2374 char logfilename[1024];
2377 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2378 ost->logfile_prefix ? ost->logfile_prefix :
2379 DEFAULT_PASS_LOGFILENAME_PREFIX,
2381 if (!strcmp(ost->enc->name, "libx264")) {
2382 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2384 if (codec->flags & CODEC_FLAG_PASS2) {
2386 size_t logbuffer_size;
2387 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2388 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2392 codec->stats_in = logbuffer;
2394 if (codec->flags & CODEC_FLAG_PASS1) {
2395 f = fopen(logfilename, "wb");
2397 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2398 logfilename, strerror(errno));
2408 /* open each encoder */
2409 for (i = 0; i < nb_output_streams; i++) {
2410 ost = output_streams[i];
2411 if (ost->encoding_needed) {
2412 AVCodec *codec = ost->enc;
2413 AVCodecContext *dec = NULL;
2415 if ((ist = get_input_stream(ost)))
2416 dec = ist->st->codec;
2417 if (dec && dec->subtitle_header) {
2418 /* ASS code assumes this buffer is null terminated so add extra byte. */
2419 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2420 if (!ost->st->codec->subtitle_header) {
2421 ret = AVERROR(ENOMEM);
2424 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2425 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2427 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2428 av_dict_set(&ost->opts, "threads", "auto", 0);
2429 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2430 if (ret == AVERROR_EXPERIMENTAL)
2431 abort_codec_experimental(codec, 1);
2432 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2433 ost->file_index, ost->index);
2436 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2437 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2438 av_buffersink_set_frame_size(ost->filter->filter,
2439 ost->st->codec->frame_size);
2440 assert_avoptions(ost->opts);
2441 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2442 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2443 " It takes bits/s as argument, not kbits/s\n");
2444 extra_size += ost->st->codec->extradata_size;
2446 if (ost->st->codec->me_threshold)
2447 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2449 av_opt_set_dict(ost->st->codec, &ost->opts);
2453 /* init input streams */
2454 for (i = 0; i < nb_input_streams; i++)
2455 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2456 for (i = 0; i < nb_output_streams; i++) {
2457 ost = output_streams[i];
2458 avcodec_close(ost->st->codec);
2463 /* discard unused programs */
2464 for (i = 0; i < nb_input_files; i++) {
2465 InputFile *ifile = input_files[i];
2466 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2467 AVProgram *p = ifile->ctx->programs[j];
2468 int discard = AVDISCARD_ALL;
2470 for (k = 0; k < p->nb_stream_indexes; k++)
2471 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2472 discard = AVDISCARD_DEFAULT;
2475 p->discard = discard;
2479 /* open files and write file headers */
2480 for (i = 0; i < nb_output_files; i++) {
2481 oc = output_files[i]->ctx;
2482 oc->interrupt_callback = int_cb;
2483 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2485 const char *errbuf_ptr = errbuf;
2486 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2487 errbuf_ptr = strerror(AVUNERROR(ret));
2488 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2489 ret = AVERROR(EINVAL);
2492 // assert_avoptions(output_files[i]->opts);
2493 if (strcmp(oc->oformat->name, "rtp")) {
2499 /* dump the file output parameters - cannot be done before in case
2501 for (i = 0; i < nb_output_files; i++) {
2502 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2505 /* dump the stream mapping */
2506 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2507 for (i = 0; i < nb_input_streams; i++) {
2508 ist = input_streams[i];
2510 for (j = 0; j < ist->nb_filters; j++) {
2511 if (ist->filters[j]->graph->graph_desc) {
2512 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2513 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2514 ist->filters[j]->name);
2515 if (nb_filtergraphs > 1)
2516 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2517 av_log(NULL, AV_LOG_INFO, "\n");
2522 for (i = 0; i < nb_output_streams; i++) {
2523 ost = output_streams[i];
2525 if (ost->attachment_filename) {
2526 /* an attached file */
2527 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2528 ost->attachment_filename, ost->file_index, ost->index);
2532 if (ost->filter && ost->filter->graph->graph_desc) {
2533 /* output from a complex graph */
2534 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2535 if (nb_filtergraphs > 1)
2536 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2538 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2539 ost->index, ost->enc ? ost->enc->name : "?");
2543 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2544 input_streams[ost->source_index]->file_index,
2545 input_streams[ost->source_index]->st->index,
2548 if (ost->sync_ist != input_streams[ost->source_index])
2549 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2550 ost->sync_ist->file_index,
2551 ost->sync_ist->st->index);
2552 if (ost->stream_copy)
2553 av_log(NULL, AV_LOG_INFO, " (copy)");
2555 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2556 input_streams[ost->source_index]->dec->name : "?",
2557 ost->enc ? ost->enc->name : "?");
2558 av_log(NULL, AV_LOG_INFO, "\n");
2562 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2573 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2574 static int need_output(void)
2578 for (i = 0; i < nb_output_streams; i++) {
2579 OutputStream *ost = output_streams[i];
2580 OutputFile *of = output_files[ost->file_index];
2581 AVFormatContext *os = output_files[ost->file_index]->ctx;
2583 if (ost->finished ||
2584 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2586 if (ost->frame_number >= ost->max_frames) {
2588 for (j = 0; j < of->ctx->nb_streams; j++)
2589 close_output_stream(output_streams[of->ost_index + j]);
2600 * Select the output stream to process.
2602 * @return selected output stream, or NULL if none available
2604 static OutputStream *choose_output(void)
2607 int64_t opts_min = INT64_MAX;
2608 OutputStream *ost_min = NULL;
2610 for (i = 0; i < nb_output_streams; i++) {
2611 OutputStream *ost = output_streams[i];
2612 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2614 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2622 static int check_keyboard_interaction(int64_t cur_time)
2625 static int64_t last_time;
2626 if (received_nb_signals)
2627 return AVERROR_EXIT;
2628 /* read_key() returns 0 on EOF */
2629 if(cur_time - last_time >= 100000 && !run_as_daemon){
2631 last_time = cur_time;
2635 return AVERROR_EXIT;
2636 if (key == '+') av_log_set_level(av_log_get_level()+10);
2637 if (key == '-') av_log_set_level(av_log_get_level()-10);
2638 if (key == 's') qp_hist ^= 1;
2641 do_hex_dump = do_pkt_dump = 0;
2642 } else if(do_pkt_dump){
2646 av_log_set_level(AV_LOG_DEBUG);
2648 if (key == 'c' || key == 'C'){
2649 char buf[4096], target[64], command[256], arg[256] = {0};
2652 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2654 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2659 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2660 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2661 target, time, command, arg);
2662 for (i = 0; i < nb_filtergraphs; i++) {
2663 FilterGraph *fg = filtergraphs[i];
2666 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2667 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2668 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2670 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2675 av_log(NULL, AV_LOG_ERROR,
2676 "Parse error, at least 3 arguments were expected, "
2677 "only %d given in string '%s'\n", n, buf);
2680 if (key == 'd' || key == 'D'){
2683 debug = input_streams[0]->st->codec->debug<<1;
2684 if(!debug) debug = 1;
2685 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2688 if(scanf("%d", &debug)!=1)
2689 fprintf(stderr,"error parsing debug value\n");
2690 for(i=0;i<nb_input_streams;i++) {
2691 input_streams[i]->st->codec->debug = debug;
2693 for(i=0;i<nb_output_streams;i++) {
2694 OutputStream *ost = output_streams[i];
2695 ost->st->codec->debug = debug;
2697 if(debug) av_log_set_level(AV_LOG_DEBUG);
2698 fprintf(stderr,"debug=%d\n", debug);
2701 fprintf(stderr, "key function\n"
2702 "? show this help\n"
2703 "+ increase verbosity\n"
2704 "- decrease verbosity\n"
2705 "c Send command to filtergraph\n"
2706 "D cycle through available debug modes\n"
2707 "h dump packets/hex press to cycle through the 3 states\n"
2709 "s Show QP histogram\n"
2716 static void *input_thread(void *arg)
2721 while (!transcoding_finished && ret >= 0) {
2723 ret = av_read_frame(f->ctx, &pkt);
2725 if (ret == AVERROR(EAGAIN)) {
2732 pthread_mutex_lock(&f->fifo_lock);
2733 while (!av_fifo_space(f->fifo))
2734 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2736 av_dup_packet(&pkt);
2737 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2739 pthread_mutex_unlock(&f->fifo_lock);
2746 static void free_input_threads(void)
2750 if (nb_input_files == 1)
2753 transcoding_finished = 1;
2755 for (i = 0; i < nb_input_files; i++) {
2756 InputFile *f = input_files[i];
2759 if (!f->fifo || f->joined)
2762 pthread_mutex_lock(&f->fifo_lock);
2763 while (av_fifo_size(f->fifo)) {
2764 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2765 av_free_packet(&pkt);
2767 pthread_cond_signal(&f->fifo_cond);
2768 pthread_mutex_unlock(&f->fifo_lock);
2770 pthread_join(f->thread, NULL);
2773 while (av_fifo_size(f->fifo)) {
2774 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2775 av_free_packet(&pkt);
2777 av_fifo_free(f->fifo);
2781 static int init_input_threads(void)
2785 if (nb_input_files == 1)
2788 for (i = 0; i < nb_input_files; i++) {
2789 InputFile *f = input_files[i];
2791 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2792 return AVERROR(ENOMEM);
2794 pthread_mutex_init(&f->fifo_lock, NULL);
2795 pthread_cond_init (&f->fifo_cond, NULL);
2797 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2798 return AVERROR(ret);
2803 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2807 pthread_mutex_lock(&f->fifo_lock);
2809 if (av_fifo_size(f->fifo)) {
2810 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2811 pthread_cond_signal(&f->fifo_cond);
2816 ret = AVERROR(EAGAIN);
2819 pthread_mutex_unlock(&f->fifo_lock);
2825 static int get_input_packet(InputFile *f, AVPacket *pkt)
2829 for (i = 0; i < f->nb_streams; i++) {
2830 InputStream *ist = input_streams[f->ist_index + i];
2831 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2832 int64_t now = av_gettime() - ist->start;
2834 return AVERROR(EAGAIN);
2839 if (nb_input_files > 1)
2840 return get_input_packet_mt(f, pkt);
2842 return av_read_frame(f->ctx, pkt);
2845 static int got_eagain(void)
2848 for (i = 0; i < nb_output_streams; i++)
2849 if (output_streams[i]->unavailable)
2854 static void reset_eagain(void)
2857 for (i = 0; i < nb_input_files; i++)
2858 input_files[i]->eagain = 0;
2859 for (i = 0; i < nb_output_streams; i++)
2860 output_streams[i]->unavailable = 0;
2865 * - 0 -- one packet was read and processed
2866 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2867 * this function should be called again
2868 * - AVERROR_EOF -- this function should not be called again
2870 static int process_input(int file_index)
2872 InputFile *ifile = input_files[file_index];
2873 AVFormatContext *is;
2879 ret = get_input_packet(ifile, &pkt);
2881 if (ret == AVERROR(EAGAIN)) {
2886 if (ret != AVERROR_EOF) {
2887 print_error(is->filename, ret);
2891 ifile->eof_reached = 1;
2893 for (i = 0; i < ifile->nb_streams; i++) {
2894 ist = input_streams[ifile->ist_index + i];
2895 if (ist->decoding_needed)
2896 output_packet(ist, NULL);
2898 /* mark all outputs that don't go through lavfi as finished */
2899 for (j = 0; j < nb_output_streams; j++) {
2900 OutputStream *ost = output_streams[j];
2902 if (ost->source_index == ifile->ist_index + i &&
2903 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2904 close_output_stream(ost);
2908 return AVERROR(EAGAIN);
2914 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2915 is->streams[pkt.stream_index]);
2917 /* the following test is needed in case new streams appear
2918 dynamically in stream : we ignore them */
2919 if (pkt.stream_index >= ifile->nb_streams) {
2920 report_new_stream(file_index, &pkt);
2921 goto discard_packet;
2924 ist = input_streams[ifile->ist_index + pkt.stream_index];
2926 goto discard_packet;
2929 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2930 "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:%s off_time:%s\n",
2931 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2932 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2933 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2934 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2935 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2936 av_ts2str(input_files[ist->file_index]->ts_offset),
2937 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2940 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2941 int64_t stime, stime2;
2942 // Correcting starttime based on the enabled streams
2943 // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point.
2944 // so we instead do it here as part of discontinuity handling
2945 if ( ist->next_dts == AV_NOPTS_VALUE
2946 && ifile->ts_offset == -is->start_time
2947 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2948 int64_t new_start_time = INT64_MAX;
2949 for (i=0; i<is->nb_streams; i++) {
2950 AVStream *st = is->streams[i];
2951 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2953 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2955 if (new_start_time > is->start_time) {
2956 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2957 ifile->ts_offset = -new_start_time;
2961 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2962 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2963 ist->wrap_correction_done = 1;
2965 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2966 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2967 ist->wrap_correction_done = 0;
2969 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2970 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2971 ist->wrap_correction_done = 0;
2975 if (pkt.dts != AV_NOPTS_VALUE)
2976 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2977 if (pkt.pts != AV_NOPTS_VALUE)
2978 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2980 if (pkt.pts != AV_NOPTS_VALUE)
2981 pkt.pts *= ist->ts_scale;
2982 if (pkt.dts != AV_NOPTS_VALUE)
2983 pkt.dts *= ist->ts_scale;
2985 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
2986 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
2987 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2988 int64_t delta = pkt_dts - ifile->last_ts;
2989 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2990 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2991 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
2992 ifile->ts_offset -= delta;
2993 av_log(NULL, AV_LOG_DEBUG,
2994 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2995 delta, ifile->ts_offset);
2996 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2997 if (pkt.pts != AV_NOPTS_VALUE)
2998 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3002 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3004 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3005 int64_t delta = pkt_dts - ist->next_dts;
3006 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3007 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3008 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3009 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3010 pkt_dts+1<ist->pts){
3011 ifile->ts_offset -= delta;
3012 av_log(NULL, AV_LOG_DEBUG,
3013 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3014 delta, ifile->ts_offset);
3015 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3016 if (pkt.pts != AV_NOPTS_VALUE)
3017 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3020 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3021 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3023 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3024 pkt.dts = AV_NOPTS_VALUE;
3026 if (pkt.pts != AV_NOPTS_VALUE){
3027 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3028 delta = pkt_pts - ist->next_dts;
3029 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3030 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3032 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3033 pkt.pts = AV_NOPTS_VALUE;
3039 if (pkt.dts != AV_NOPTS_VALUE)
3040 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3043 av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
3044 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3045 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3046 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3047 av_ts2str(input_files[ist->file_index]->ts_offset),
3048 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3051 sub2video_heartbeat(ist, pkt.pts);
3053 ret = output_packet(ist, &pkt);
3056 av_strerror(ret, buf, sizeof(buf));
3057 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3058 ist->file_index, ist->st->index, buf);
3064 av_free_packet(&pkt);
3070 * Perform a step of transcoding for the specified filter graph.
3072 * @param[in] graph filter graph to consider
3073 * @param[out] best_ist input stream where a frame would allow to continue
3074 * @return 0 for success, <0 for error
3076 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3079 int nb_requests, nb_requests_max = 0;
3080 InputFilter *ifilter;
3084 ret = avfilter_graph_request_oldest(graph->graph);
3086 return reap_filters();
3088 if (ret == AVERROR_EOF) {
3089 ret = reap_filters();
3090 for (i = 0; i < graph->nb_outputs; i++)
3091 close_output_stream(graph->outputs[i]->ost);
3094 if (ret != AVERROR(EAGAIN))
3097 for (i = 0; i < graph->nb_inputs; i++) {
3098 ifilter = graph->inputs[i];
3100 if (input_files[ist->file_index]->eagain ||
3101 input_files[ist->file_index]->eof_reached)
3103 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3104 if (nb_requests > nb_requests_max) {
3105 nb_requests_max = nb_requests;
3111 for (i = 0; i < graph->nb_outputs; i++)
3112 graph->outputs[i]->ost->unavailable = 1;
3118 * Run a single step of transcoding.
3120 * @return 0 for success, <0 for error
3122 static int transcode_step(void)
3128 ost = choose_output();
3135 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3140 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3145 av_assert0(ost->source_index >= 0);
3146 ist = input_streams[ost->source_index];
3149 ret = process_input(ist->file_index);
3150 if (ret == AVERROR(EAGAIN)) {
3151 if (input_files[ist->file_index]->eagain)
3152 ost->unavailable = 1;
3156 return ret == AVERROR_EOF ? 0 : ret;
3158 return reap_filters();
3162 * The following code is the main loop of the file converter
3164 static int transcode(void)
3167 AVFormatContext *os;
3170 int64_t timer_start;
3172 ret = transcode_init();
3176 if (stdin_interaction) {
3177 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3180 timer_start = av_gettime();
3183 if ((ret = init_input_threads()) < 0)
3187 while (!received_sigterm) {
3188 int64_t cur_time= av_gettime();
3190 /* if 'q' pressed, exits */
3191 if (stdin_interaction)
3192 if (check_keyboard_interaction(cur_time) < 0)
3195 /* check if there's any stream where output is still needed */
3196 if (!need_output()) {
3197 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3201 ret = transcode_step();
3203 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3206 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3210 /* dump report by using the output first video and audio streams */
3211 print_report(0, timer_start, cur_time);
3214 free_input_threads();
3217 /* at the end of stream, we must flush the decoder buffers */
3218 for (i = 0; i < nb_input_streams; i++) {
3219 ist = input_streams[i];
3220 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3221 output_packet(ist, NULL);
3228 /* write the trailer if needed and close file */
3229 for (i = 0; i < nb_output_files; i++) {
3230 os = output_files[i]->ctx;
3231 av_write_trailer(os);
3234 /* dump report by using the first video and audio streams */
3235 print_report(1, timer_start, av_gettime());
3237 /* close each encoder */
3238 for (i = 0; i < nb_output_streams; i++) {
3239 ost = output_streams[i];
3240 if (ost->encoding_needed) {
3241 av_freep(&ost->st->codec->stats_in);
3242 avcodec_close(ost->st->codec);
3246 /* close each decoder */
3247 for (i = 0; i < nb_input_streams; i++) {
3248 ist = input_streams[i];
3249 if (ist->decoding_needed) {
3250 avcodec_close(ist->st->codec);
3259 free_input_threads();
3262 if (output_streams) {
3263 for (i = 0; i < nb_output_streams; i++) {
3264 ost = output_streams[i];
3266 if (ost->stream_copy)
3267 av_freep(&ost->st->codec->extradata);
3269 fclose(ost->logfile);
3270 ost->logfile = NULL;
3272 av_freep(&ost->st->codec->subtitle_header);
3273 av_free(ost->forced_kf_pts);
3274 av_dict_free(&ost->opts);
3275 av_dict_free(&ost->swr_opts);
3276 av_dict_free(&ost->resample_opts);
3284 static int64_t getutime(void)
3287 struct rusage rusage;
3289 getrusage(RUSAGE_SELF, &rusage);
3290 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3291 #elif HAVE_GETPROCESSTIMES
3293 FILETIME c, e, k, u;
3294 proc = GetCurrentProcess();
3295 GetProcessTimes(proc, &c, &e, &k, &u);
3296 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3298 return av_gettime();
3302 static int64_t getmaxrss(void)
3304 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3305 struct rusage rusage;
3306 getrusage(RUSAGE_SELF, &rusage);
3307 return (int64_t)rusage.ru_maxrss * 1024;
3308 #elif HAVE_GETPROCESSMEMORYINFO
3310 PROCESS_MEMORY_COUNTERS memcounters;
3311 proc = GetCurrentProcess();
3312 memcounters.cb = sizeof(memcounters);
3313 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3314 return memcounters.PeakPagefileUsage;
3320 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3324 int main(int argc, char **argv)
3329 atexit(exit_program);
3331 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3333 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3334 parse_loglevel(argc, argv, options);
3336 if(argc>1 && !strcmp(argv[1], "-d")){
3338 av_log_set_callback(log_callback_null);
3343 avcodec_register_all();
3345 avdevice_register_all();
3347 avfilter_register_all();
3349 avformat_network_init();
3351 show_banner(argc, argv, options);
3355 /* parse options and open all input/output files */
3356 ret = ffmpeg_parse_options(argc, argv);
3360 if (nb_output_files <= 0 && nb_input_files == 0) {
3362 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3366 /* file converter / grab */
3367 if (nb_output_files <= 0) {
3368 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3372 // if (nb_input_files == 0) {
3373 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3377 current_time = ti = getutime();
3378 if (transcode() < 0)
3380 ti = getutime() - ti;
3382 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3384 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3385 decode_error_stat[0], decode_error_stat[1]);
3386 if (2*decode_error_stat[0] < decode_error_stat[1])
3389 exit(received_nb_signals ? 255 : 0);