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/fifo.h"
50 #include "libavutil/intreadwrite.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/mathematics.h"
53 #include "libavutil/pixdesc.h"
54 #include "libavutil/avstring.h"
55 #include "libavutil/libm.h"
56 #include "libavutil/imgutils.h"
57 #include "libavutil/timestamp.h"
58 #include "libavutil/bprint.h"
59 #include "libavutil/time.h"
60 #include "libavformat/os_support.h"
62 #include "libavformat/ffm.h" // not public API
64 # include "libavfilter/avcodec.h"
65 # include "libavfilter/avfilter.h"
66 # include "libavfilter/buffersrc.h"
67 # include "libavfilter/buffersink.h"
69 #if HAVE_SYS_RESOURCE_H
71 #include <sys/types.h>
72 #include <sys/resource.h>
73 #elif HAVE_GETPROCESSTIMES
76 #if HAVE_GETPROCESSMEMORYINFO
82 #include <sys/select.h>
87 #include <sys/ioctl.h>
101 #include "cmdutils.h"
103 #include "libavutil/avassert.h"
105 const char program_name[] = "ffmpeg";
106 const int program_birth_year = 2000;
108 static FILE *vstats_file;
110 const char *const forced_keyframes_const_names[] = {
119 static void do_video_stats(OutputStream *ost, int frame_size);
120 static int64_t getutime(void);
121 static int64_t getmaxrss(void);
123 static int run_as_daemon = 0;
124 static int64_t video_size = 0;
125 static int64_t audio_size = 0;
126 static int64_t subtitle_size = 0;
127 static int64_t extra_size = 0;
128 static int nb_frames_dup = 0;
129 static int nb_frames_drop = 0;
130 static int64_t decode_error_stat[2];
132 static int current_time;
133 AVIOContext *progress_avio = NULL;
135 static uint8_t *subtitle_out;
138 /* signal to input threads that they should exit; set by the main thread */
139 static int transcoding_finished;
142 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
144 InputStream **input_streams = NULL;
145 int nb_input_streams = 0;
146 InputFile **input_files = NULL;
147 int nb_input_files = 0;
149 OutputStream **output_streams = NULL;
150 int nb_output_streams = 0;
151 OutputFile **output_files = NULL;
152 int nb_output_files = 0;
154 FilterGraph **filtergraphs;
159 /* init terminal so that we can grab keys */
160 static struct termios oldtty;
161 static int restore_tty;
164 static void free_input_threads(void);
168 Convert subtitles to video with alpha to insert them in filter graphs.
169 This is a temporary solution until libavfilter gets real subtitles support.
172 static int sub2video_get_blank_frame(InputStream *ist)
175 AVFrame *frame = ist->sub2video.frame;
177 av_frame_unref(frame);
178 ist->sub2video.frame->width = ist->sub2video.w;
179 ist->sub2video.frame->height = ist->sub2video.h;
180 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
181 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
183 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
187 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
190 uint32_t *pal, *dst2;
194 if (r->type != SUBTITLE_BITMAP) {
195 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
198 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
199 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
203 dst += r->y * dst_linesize + r->x * 4;
204 src = r->pict.data[0];
205 pal = (uint32_t *)r->pict.data[1];
206 for (y = 0; y < r->h; y++) {
207 dst2 = (uint32_t *)dst;
209 for (x = 0; x < r->w; x++)
210 *(dst2++) = pal[*(src2++)];
212 src += r->pict.linesize[0];
216 static void sub2video_push_ref(InputStream *ist, int64_t pts)
218 AVFrame *frame = ist->sub2video.frame;
221 av_assert1(frame->data[0]);
222 ist->sub2video.last_pts = frame->pts = pts;
223 for (i = 0; i < ist->nb_filters; i++)
224 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
225 AV_BUFFERSRC_FLAG_KEEP_REF |
226 AV_BUFFERSRC_FLAG_PUSH);
229 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
231 int w = ist->sub2video.w, h = ist->sub2video.h;
232 AVFrame *frame = ist->sub2video.frame;
236 int64_t pts, end_pts;
241 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
242 AV_TIME_BASE_Q, ist->st->time_base);
243 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
244 AV_TIME_BASE_Q, ist->st->time_base);
245 num_rects = sub->num_rects;
247 pts = ist->sub2video.end_pts;
251 if (sub2video_get_blank_frame(ist) < 0) {
252 av_log(ist->st->codec, AV_LOG_ERROR,
253 "Impossible to get a blank canvas.\n");
256 dst = frame->data [0];
257 dst_linesize = frame->linesize[0];
258 for (i = 0; i < num_rects; i++)
259 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
260 sub2video_push_ref(ist, pts);
261 ist->sub2video.end_pts = end_pts;
264 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
266 InputFile *infile = input_files[ist->file_index];
270 /* When a frame is read from a file, examine all sub2video streams in
271 the same file and send the sub2video frame again. Otherwise, decoded
272 video frames could be accumulating in the filter graph while a filter
273 (possibly overlay) is desperately waiting for a subtitle frame. */
274 for (i = 0; i < infile->nb_streams; i++) {
275 InputStream *ist2 = input_streams[infile->ist_index + i];
276 if (!ist2->sub2video.frame)
278 /* subtitles seem to be usually muxed ahead of other streams;
279 if not, substracting a larger time here is necessary */
280 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
281 /* do not send the heartbeat frame if the subtitle is already ahead */
282 if (pts2 <= ist2->sub2video.last_pts)
284 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
285 sub2video_update(ist2, NULL);
286 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
287 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
289 sub2video_push_ref(ist2, pts2);
293 static void sub2video_flush(InputStream *ist)
297 for (i = 0; i < ist->nb_filters; i++)
298 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
301 /* end of sub2video hack */
305 av_log(NULL, AV_LOG_QUIET, "%s", "");
308 tcsetattr (0, TCSANOW, &oldtty);
312 static volatile int received_sigterm = 0;
313 static volatile int received_nb_signals = 0;
316 sigterm_handler(int sig)
318 received_sigterm = sig;
319 received_nb_signals++;
321 if(received_nb_signals > 3)
332 istty = isatty(0) && isatty(2);
334 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 ffmpeg_cleanup(int ret)
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 && !(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]);
478 free_input_threads();
480 for (i = 0; i < nb_input_files; i++) {
481 avformat_close_input(&input_files[i]->ctx);
482 av_freep(&input_files[i]);
484 for (i = 0; i < nb_input_streams; i++) {
485 av_frame_free(&input_streams[i]->decoded_frame);
486 av_frame_free(&input_streams[i]->filter_frame);
487 av_dict_free(&input_streams[i]->opts);
488 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
489 av_frame_free(&input_streams[i]->sub2video.frame);
490 av_freep(&input_streams[i]->filters);
491 av_freep(&input_streams[i]);
496 av_free(vstats_filename);
498 av_freep(&input_streams);
499 av_freep(&input_files);
500 av_freep(&output_streams);
501 av_freep(&output_files);
505 avformat_network_deinit();
507 if (received_sigterm) {
508 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
509 (int) received_sigterm);
514 void assert_avoptions(AVDictionary *m)
516 AVDictionaryEntry *t;
517 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
518 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
523 static void abort_codec_experimental(AVCodec *c, int encoder)
528 static void update_benchmark(const char *fmt, ...)
530 if (do_benchmark_all) {
531 int64_t t = getutime();
537 vsnprintf(buf, sizeof(buf), fmt, va);
539 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
545 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
547 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
548 AVCodecContext *avctx = ost->st->codec;
551 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
552 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
553 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
556 * Audio encoders may split the packets -- #frames in != #packets out.
557 * But there is no reordering, so we can limit the number of output packets
558 * by simply dropping them here.
559 * Counting encoded video frames needs to be done separately because of
560 * reordering, see do_video_out()
562 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
563 if (ost->frame_number >= ost->max_frames) {
571 AVPacket new_pkt = *pkt;
572 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
573 &new_pkt.data, &new_pkt.size,
574 pkt->data, pkt->size,
575 pkt->flags & AV_PKT_FLAG_KEY);
576 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
577 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
579 memcpy(t, new_pkt.data, new_pkt.size);
580 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
589 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
590 av_buffer_default_free, NULL, 0);
594 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
595 bsfc->filter->name, pkt->stream_index,
596 avctx->codec ? avctx->codec->name : "copy");
606 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
607 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
608 pkt->dts != AV_NOPTS_VALUE &&
609 ost->last_mux_dts != AV_NOPTS_VALUE) {
610 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
611 if (pkt->dts < max) {
612 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
613 av_log(s, loglevel, "Non-monotonous DTS in output stream "
614 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
615 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
617 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
620 av_log(s, loglevel, "changing to %"PRId64". This may result "
621 "in incorrect timestamps in the output file.\n",
623 if(pkt->pts >= pkt->dts)
624 pkt->pts = FFMAX(pkt->pts, max);
628 ost->last_mux_dts = pkt->dts;
630 pkt->stream_index = ost->index;
633 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
634 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
635 av_get_media_type_string(ost->st->codec->codec_type),
636 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
637 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
642 ret = av_interleaved_write_frame(s, pkt);
644 print_error("av_interleaved_write_frame()", ret);
649 static void close_output_stream(OutputStream *ost)
651 OutputFile *of = output_files[ost->file_index];
655 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
656 of->recording_time = FFMIN(of->recording_time, end);
660 static int check_recording_time(OutputStream *ost)
662 OutputFile *of = output_files[ost->file_index];
664 if (of->recording_time != INT64_MAX &&
665 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
666 AV_TIME_BASE_Q) >= 0) {
667 close_output_stream(ost);
673 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
676 AVCodecContext *enc = ost->st->codec;
680 av_init_packet(&pkt);
684 if (!check_recording_time(ost))
687 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
688 frame->pts = ost->sync_opts;
689 ost->sync_opts = frame->pts + frame->nb_samples;
691 av_assert0(pkt.size || !pkt.data);
692 update_benchmark(NULL);
693 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
694 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
697 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
700 if (pkt.pts != AV_NOPTS_VALUE)
701 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
702 if (pkt.dts != AV_NOPTS_VALUE)
703 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
704 if (pkt.duration > 0)
705 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
708 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
709 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
710 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
711 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
714 audio_size += pkt.size;
715 write_frame(s, &pkt, ost);
717 av_free_packet(&pkt);
721 static void do_subtitle_out(AVFormatContext *s,
726 int subtitle_out_max_size = 1024 * 1024;
727 int subtitle_out_size, nb, i;
732 if (sub->pts == AV_NOPTS_VALUE) {
733 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
739 enc = ost->st->codec;
742 subtitle_out = av_malloc(subtitle_out_max_size);
745 /* Note: DVB subtitle need one packet to draw them and one other
746 packet to clear them */
747 /* XXX: signal it in the codec context ? */
748 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
753 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
755 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
756 pts -= output_files[ost->file_index]->start_time;
757 for (i = 0; i < nb; i++) {
758 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
759 if (!check_recording_time(ost))
763 // start_display_time is required to be 0
764 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
765 sub->end_display_time -= sub->start_display_time;
766 sub->start_display_time = 0;
769 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
770 subtitle_out_max_size, sub);
771 if (subtitle_out_size < 0) {
772 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
776 av_init_packet(&pkt);
777 pkt.data = subtitle_out;
778 pkt.size = subtitle_out_size;
779 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
780 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
781 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
782 /* XXX: the pts correction is handled here. Maybe handling
783 it in the codec would be better */
785 pkt.pts += 90 * sub->start_display_time;
787 pkt.pts += 90 * sub->end_display_time;
789 subtitle_size += pkt.size;
790 write_frame(s, &pkt, ost);
794 static void do_video_out(AVFormatContext *s,
798 int ret, format_video_sync;
800 AVCodecContext *enc = ost->st->codec;
802 double sync_ipts, delta;
805 InputStream *ist = NULL;
807 if (ost->source_index >= 0)
808 ist = input_streams[ost->source_index];
810 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
811 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
813 sync_ipts = in_picture->pts;
814 delta = sync_ipts - ost->sync_opts + duration;
816 /* by default, we output a single frame */
819 format_video_sync = video_sync_method;
820 if (format_video_sync == VSYNC_AUTO)
821 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
823 switch (format_video_sync) {
825 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
828 else if (delta > 1.1)
829 nb_frames = lrintf(delta);
834 else if (delta > 0.6)
835 ost->sync_opts = lrint(sync_ipts);
838 case VSYNC_PASSTHROUGH:
839 ost->sync_opts = lrint(sync_ipts);
845 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
846 if (nb_frames == 0) {
848 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
850 } else if (nb_frames > 1) {
851 if (nb_frames > dts_error_threshold * 30) {
852 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
856 nb_frames_dup += nb_frames - 1;
857 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
860 /* duplicates frame if needed */
861 for (i = 0; i < nb_frames; i++) {
862 av_init_packet(&pkt);
866 in_picture->pts = ost->sync_opts;
869 if (!check_recording_time(ost))
871 if (ost->frame_number >= ost->max_frames)
875 if (s->oformat->flags & AVFMT_RAWPICTURE &&
876 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
877 /* raw pictures are written as AVPicture structure to
878 avoid any copies. We support temporarily the older
880 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
881 enc->coded_frame->top_field_first = in_picture->top_field_first;
882 if (enc->coded_frame->interlaced_frame)
883 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
885 enc->field_order = AV_FIELD_PROGRESSIVE;
886 pkt.data = (uint8_t *)in_picture;
887 pkt.size = sizeof(AVPicture);
888 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
889 pkt.flags |= AV_PKT_FLAG_KEY;
891 video_size += pkt.size;
892 write_frame(s, &pkt, ost);
894 int got_packet, forced_keyframe = 0;
897 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
898 ost->top_field_first >= 0)
899 in_picture->top_field_first = !!ost->top_field_first;
901 if (in_picture->interlaced_frame) {
902 if (enc->codec->id == AV_CODEC_ID_MJPEG)
903 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
905 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
907 enc->field_order = AV_FIELD_PROGRESSIVE;
909 in_picture->quality = ost->st->codec->global_quality;
910 if (!enc->me_threshold)
911 in_picture->pict_type = 0;
913 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
914 in_picture->pts * av_q2d(enc->time_base) : NAN;
915 if (ost->forced_kf_index < ost->forced_kf_count &&
916 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
917 ost->forced_kf_index++;
919 } else if (ost->forced_keyframes_pexpr) {
921 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
922 res = av_expr_eval(ost->forced_keyframes_pexpr,
923 ost->forced_keyframes_expr_const_values, NULL);
924 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
925 ost->forced_keyframes_expr_const_values[FKF_N],
926 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
927 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
928 ost->forced_keyframes_expr_const_values[FKF_T],
929 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
933 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
934 ost->forced_keyframes_expr_const_values[FKF_N];
935 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
936 ost->forced_keyframes_expr_const_values[FKF_T];
937 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
940 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
942 if (forced_keyframe) {
943 in_picture->pict_type = AV_PICTURE_TYPE_I;
944 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
947 update_benchmark(NULL);
948 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
949 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
951 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
956 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
957 pkt.pts = ost->sync_opts;
959 if (pkt.pts != AV_NOPTS_VALUE)
960 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
961 if (pkt.dts != AV_NOPTS_VALUE)
962 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
965 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
966 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
967 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
968 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
971 frame_size = pkt.size;
972 video_size += pkt.size;
973 write_frame(s, &pkt, ost);
974 av_free_packet(&pkt);
976 /* if two pass, output log */
977 if (ost->logfile && enc->stats_out) {
978 fprintf(ost->logfile, "%s", enc->stats_out);
984 * For video, number of frames in == number of packets out.
985 * But there may be reordering, so we can't throw away frames on encoder
986 * flush, we need to limit them here, before they go into encoder.
990 if (vstats_filename && frame_size)
991 do_video_stats(ost, frame_size);
995 static double psnr(double d)
997 return -10.0 * log(d) / log(10.0);
1000 static void do_video_stats(OutputStream *ost, int frame_size)
1002 AVCodecContext *enc;
1004 double ti1, bitrate, avg_bitrate;
1006 /* this is executed just the first time do_video_stats is called */
1008 vstats_file = fopen(vstats_filename, "w");
1015 enc = ost->st->codec;
1016 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1017 frame_number = ost->st->nb_frames;
1018 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1019 if (enc->flags&CODEC_FLAG_PSNR)
1020 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1022 fprintf(vstats_file,"f_size= %6d ", frame_size);
1023 /* compute pts value */
1024 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1028 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1029 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1030 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1031 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1032 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1037 * Get and encode new output from any of the filtergraphs, without causing
1040 * @return 0 for success, <0 for severe errors
1042 static int reap_filters(void)
1044 AVFrame *filtered_frame = NULL;
1048 /* Reap all buffers present in the buffer sinks */
1049 for (i = 0; i < nb_output_streams; i++) {
1050 OutputStream *ost = output_streams[i];
1051 OutputFile *of = output_files[ost->file_index];
1057 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1058 return AVERROR(ENOMEM);
1060 avcodec_get_frame_defaults(ost->filtered_frame);
1061 filtered_frame = ost->filtered_frame;
1064 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1065 AV_BUFFERSINK_FLAG_NO_REQUEST);
1067 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1068 av_log(NULL, AV_LOG_WARNING,
1069 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1073 frame_pts = AV_NOPTS_VALUE;
1074 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1075 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1076 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1077 ost->filter->filter->inputs[0]->time_base,
1078 ost->st->codec->time_base) -
1079 av_rescale_q(start_time,
1081 ost->st->codec->time_base);
1083 //if (ost->source_index >= 0)
1084 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1087 switch (ost->filter->filter->inputs[0]->type) {
1088 case AVMEDIA_TYPE_VIDEO:
1089 filtered_frame->pts = frame_pts;
1090 if (!ost->frame_aspect_ratio.num)
1091 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1093 do_video_out(of->ctx, ost, filtered_frame);
1095 case AVMEDIA_TYPE_AUDIO:
1096 filtered_frame->pts = frame_pts;
1097 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1098 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1099 av_log(NULL, AV_LOG_ERROR,
1100 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1103 do_audio_out(of->ctx, ost, filtered_frame);
1106 // TODO support subtitle filters
1110 av_frame_unref(filtered_frame);
1117 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1120 AVBPrint buf_script;
1122 AVFormatContext *oc;
1124 AVCodecContext *enc;
1125 int frame_number, vid, i;
1127 int64_t pts = INT64_MIN;
1128 static int64_t last_time = -1;
1129 static int qp_histogram[52];
1130 int hours, mins, secs, us;
1132 if (!print_stats && !is_last_report && !progress_avio)
1135 if (!is_last_report) {
1136 if (last_time == -1) {
1137 last_time = cur_time;
1140 if ((cur_time - last_time) < 500000)
1142 last_time = cur_time;
1146 oc = output_files[0]->ctx;
1148 total_size = avio_size(oc->pb);
1149 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1150 total_size = avio_tell(oc->pb);
1154 av_bprint_init(&buf_script, 0, 1);
1155 for (i = 0; i < nb_output_streams; i++) {
1157 ost = output_streams[i];
1158 enc = ost->st->codec;
1159 if (!ost->stream_copy && enc->coded_frame)
1160 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1161 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1162 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1163 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1164 ost->file_index, ost->index, q);
1166 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1167 float fps, t = (cur_time-timer_start) / 1000000.0;
1169 frame_number = ost->frame_number;
1170 fps = t > 1 ? frame_number / t : 0;
1171 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1172 frame_number, fps < 9.95, fps, q);
1173 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1174 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1175 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1176 ost->file_index, ost->index, q);
1178 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1182 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1184 for (j = 0; j < 32; j++)
1185 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1187 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1189 double error, error_sum = 0;
1190 double scale, scale_sum = 0;
1192 char type[3] = { 'Y','U','V' };
1193 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1194 for (j = 0; j < 3; j++) {
1195 if (is_last_report) {
1196 error = enc->error[j];
1197 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1199 error = enc->coded_frame->error[j];
1200 scale = enc->width * enc->height * 255.0 * 255.0;
1206 p = psnr(error / scale);
1207 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1208 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1209 ost->file_index, ost->index, type[j] | 32, p);
1211 p = psnr(error_sum / scale_sum);
1212 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1213 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1214 ost->file_index, ost->index, p);
1218 /* compute min output value */
1219 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1220 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1221 ost->st->time_base, AV_TIME_BASE_Q));
1224 secs = pts / AV_TIME_BASE;
1225 us = pts % AV_TIME_BASE;
1231 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1233 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1235 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1236 "size=%8.0fkB time=", total_size / 1024.0);
1237 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1238 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1239 (100 * us) / AV_TIME_BASE);
1240 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1242 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1243 "bitrate=%6.1fkbits/s", bitrate);
1244 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1245 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1246 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1247 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1248 hours, mins, secs, us);
1250 if (nb_frames_dup || nb_frames_drop)
1251 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1252 nb_frames_dup, nb_frames_drop);
1253 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1254 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1256 if (print_stats || is_last_report) {
1257 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1258 fprintf(stderr, "%s \r", buf);
1260 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1265 if (progress_avio) {
1266 av_bprintf(&buf_script, "progress=%s\n",
1267 is_last_report ? "end" : "continue");
1268 avio_write(progress_avio, buf_script.str,
1269 FFMIN(buf_script.len, buf_script.size - 1));
1270 avio_flush(progress_avio);
1271 av_bprint_finalize(&buf_script, NULL);
1272 if (is_last_report) {
1273 avio_close(progress_avio);
1274 progress_avio = NULL;
1278 if (is_last_report) {
1279 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1280 av_log(NULL, AV_LOG_INFO, "\n");
1281 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1282 video_size / 1024.0,
1283 audio_size / 1024.0,
1284 subtitle_size / 1024.0,
1285 extra_size / 1024.0,
1286 100.0 * (total_size - raw) / raw
1288 if(video_size + audio_size + subtitle_size + extra_size == 0){
1289 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1294 static void flush_encoders(void)
1298 for (i = 0; i < nb_output_streams; i++) {
1299 OutputStream *ost = output_streams[i];
1300 AVCodecContext *enc = ost->st->codec;
1301 AVFormatContext *os = output_files[ost->file_index]->ctx;
1302 int stop_encoding = 0;
1304 if (!ost->encoding_needed)
1307 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1309 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1313 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1317 switch (ost->st->codec->codec_type) {
1318 case AVMEDIA_TYPE_AUDIO:
1319 encode = avcodec_encode_audio2;
1323 case AVMEDIA_TYPE_VIDEO:
1324 encode = avcodec_encode_video2;
1335 av_init_packet(&pkt);
1339 update_benchmark(NULL);
1340 ret = encode(enc, &pkt, NULL, &got_packet);
1341 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1343 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1347 if (ost->logfile && enc->stats_out) {
1348 fprintf(ost->logfile, "%s", enc->stats_out);
1354 if (pkt.pts != AV_NOPTS_VALUE)
1355 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1356 if (pkt.dts != AV_NOPTS_VALUE)
1357 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1358 if (pkt.duration > 0)
1359 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1360 write_frame(os, &pkt, ost);
1361 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1362 do_video_stats(ost, pkt.size);
1373 * Check whether a packet from ist should be written into ost at this time
1375 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1377 OutputFile *of = output_files[ost->file_index];
1378 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1380 if (ost->source_index != ist_index)
1383 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1389 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1391 OutputFile *of = output_files[ost->file_index];
1392 InputFile *f = input_files [ist->file_index];
1393 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1394 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1395 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1399 av_init_packet(&opkt);
1401 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1402 !ost->copy_initial_nonkeyframes)
1405 if (pkt->pts == AV_NOPTS_VALUE) {
1406 if (!ost->frame_number && ist->pts < start_time &&
1407 !ost->copy_prior_start)
1410 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1411 !ost->copy_prior_start)
1415 if (of->recording_time != INT64_MAX &&
1416 ist->pts >= of->recording_time + start_time) {
1417 close_output_stream(ost);
1421 if (f->recording_time != INT64_MAX) {
1422 start_time = f->ctx->start_time;
1423 if (f->start_time != AV_NOPTS_VALUE)
1424 start_time += f->start_time;
1425 if (ist->pts >= f->recording_time + start_time) {
1426 close_output_stream(ost);
1431 /* force the input stream PTS */
1432 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1433 audio_size += pkt->size;
1434 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1435 video_size += pkt->size;
1437 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1438 subtitle_size += pkt->size;
1441 if (pkt->pts != AV_NOPTS_VALUE)
1442 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1444 opkt.pts = AV_NOPTS_VALUE;
1446 if (pkt->dts == AV_NOPTS_VALUE)
1447 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1449 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1450 opkt.dts -= ost_tb_start_time;
1452 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1453 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1455 duration = ist->st->codec->frame_size;
1456 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1457 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1458 ost->st->time_base) - ost_tb_start_time;
1461 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1462 opkt.flags = pkt->flags;
1464 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1465 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1466 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1467 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1468 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1470 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1471 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1476 opkt.data = pkt->data;
1477 opkt.size = pkt->size;
1480 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1481 /* store AVPicture in AVPacket, as expected by the output format */
1482 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1483 opkt.data = (uint8_t *)&pict;
1484 opkt.size = sizeof(AVPicture);
1485 opkt.flags |= AV_PKT_FLAG_KEY;
1488 write_frame(of->ctx, &opkt, ost);
1489 ost->st->codec->frame_number++;
1492 int guess_input_channel_layout(InputStream *ist)
1494 AVCodecContext *dec = ist->st->codec;
1496 if (!dec->channel_layout) {
1497 char layout_name[256];
1499 if (dec->channels > ist->guess_layout_max)
1501 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1502 if (!dec->channel_layout)
1504 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1505 dec->channels, dec->channel_layout);
1506 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1507 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1512 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1514 AVFrame *decoded_frame, *f;
1515 AVCodecContext *avctx = ist->st->codec;
1516 int i, ret, err = 0, resample_changed;
1517 AVRational decoded_frame_tb;
1519 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1520 return AVERROR(ENOMEM);
1521 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1522 return AVERROR(ENOMEM);
1523 decoded_frame = ist->decoded_frame;
1525 update_benchmark(NULL);
1526 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1527 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1529 if (ret >= 0 && avctx->sample_rate <= 0) {
1530 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1531 ret = AVERROR_INVALIDDATA;
1534 if (*got_output || ret<0 || pkt->size)
1535 decode_error_stat[ret<0] ++;
1537 if (!*got_output || ret < 0) {
1539 for (i = 0; i < ist->nb_filters; i++)
1541 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1543 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1550 /* increment next_dts to use for the case where the input stream does not
1551 have timestamps or there are multiple frames in the packet */
1552 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1554 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1558 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1559 ist->resample_channels != avctx->channels ||
1560 ist->resample_channel_layout != decoded_frame->channel_layout ||
1561 ist->resample_sample_rate != decoded_frame->sample_rate;
1562 if (resample_changed) {
1563 char layout1[64], layout2[64];
1565 if (!guess_input_channel_layout(ist)) {
1566 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1567 "layout for Input Stream #%d.%d\n", ist->file_index,
1571 decoded_frame->channel_layout = avctx->channel_layout;
1573 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1574 ist->resample_channel_layout);
1575 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1576 decoded_frame->channel_layout);
1578 av_log(NULL, AV_LOG_INFO,
1579 "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",
1580 ist->file_index, ist->st->index,
1581 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1582 ist->resample_channels, layout1,
1583 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1584 avctx->channels, layout2);
1586 ist->resample_sample_fmt = decoded_frame->format;
1587 ist->resample_sample_rate = decoded_frame->sample_rate;
1588 ist->resample_channel_layout = decoded_frame->channel_layout;
1589 ist->resample_channels = avctx->channels;
1591 for (i = 0; i < nb_filtergraphs; i++)
1592 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1593 FilterGraph *fg = filtergraphs[i];
1595 if (configure_filtergraph(fg) < 0) {
1596 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1599 for (j = 0; j < fg->nb_outputs; j++) {
1600 OutputStream *ost = fg->outputs[j]->ost;
1601 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1602 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1603 av_buffersink_set_frame_size(ost->filter->filter,
1604 ost->st->codec->frame_size);
1609 /* if the decoder provides a pts, use it instead of the last packet pts.
1610 the decoder could be delaying output by a packet or more. */
1611 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1612 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1613 decoded_frame_tb = avctx->time_base;
1614 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1615 decoded_frame->pts = decoded_frame->pkt_pts;
1616 pkt->pts = AV_NOPTS_VALUE;
1617 decoded_frame_tb = ist->st->time_base;
1618 } else if (pkt->pts != AV_NOPTS_VALUE) {
1619 decoded_frame->pts = pkt->pts;
1620 pkt->pts = AV_NOPTS_VALUE;
1621 decoded_frame_tb = ist->st->time_base;
1623 decoded_frame->pts = ist->dts;
1624 decoded_frame_tb = AV_TIME_BASE_Q;
1626 if (decoded_frame->pts != AV_NOPTS_VALUE)
1627 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1628 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1629 (AVRational){1, ist->st->codec->sample_rate});
1630 for (i = 0; i < ist->nb_filters; i++) {
1631 if (i < ist->nb_filters - 1) {
1632 f = ist->filter_frame;
1633 err = av_frame_ref(f, decoded_frame);
1638 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1639 AV_BUFFERSRC_FLAG_PUSH);
1640 if (err == AVERROR_EOF)
1641 err = 0; /* ignore */
1645 decoded_frame->pts = AV_NOPTS_VALUE;
1647 av_frame_unref(ist->filter_frame);
1648 av_frame_unref(decoded_frame);
1649 return err < 0 ? err : ret;
1652 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1654 AVFrame *decoded_frame, *f;
1655 void *buffer_to_free = NULL;
1656 int i, ret = 0, err = 0, resample_changed;
1657 int64_t best_effort_timestamp;
1658 AVRational *frame_sample_aspect;
1660 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1661 return AVERROR(ENOMEM);
1662 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1663 return AVERROR(ENOMEM);
1664 decoded_frame = ist->decoded_frame;
1665 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1667 update_benchmark(NULL);
1668 ret = avcodec_decode_video2(ist->st->codec,
1669 decoded_frame, got_output, pkt);
1670 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1672 if (*got_output || ret<0 || pkt->size)
1673 decode_error_stat[ret<0] ++;
1675 if (!*got_output || ret < 0) {
1677 for (i = 0; i < ist->nb_filters; i++)
1679 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1681 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1687 if(ist->top_field_first>=0)
1688 decoded_frame->top_field_first = ist->top_field_first;
1690 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1691 if(best_effort_timestamp != AV_NOPTS_VALUE)
1692 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1695 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1696 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1697 ist->st->index, av_ts2str(decoded_frame->pts),
1698 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1699 best_effort_timestamp,
1700 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1701 decoded_frame->key_frame, decoded_frame->pict_type);
1706 if (ist->st->sample_aspect_ratio.num)
1707 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1709 resample_changed = ist->resample_width != decoded_frame->width ||
1710 ist->resample_height != decoded_frame->height ||
1711 ist->resample_pix_fmt != decoded_frame->format;
1712 if (resample_changed) {
1713 av_log(NULL, AV_LOG_INFO,
1714 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1715 ist->file_index, ist->st->index,
1716 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1717 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1719 ist->resample_width = decoded_frame->width;
1720 ist->resample_height = decoded_frame->height;
1721 ist->resample_pix_fmt = decoded_frame->format;
1723 for (i = 0; i < nb_filtergraphs; i++) {
1724 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1725 configure_filtergraph(filtergraphs[i]) < 0) {
1726 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1732 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1733 for (i = 0; i < ist->nb_filters; i++) {
1734 if (!frame_sample_aspect->num)
1735 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1737 if (i < ist->nb_filters - 1) {
1738 f = ist->filter_frame;
1739 err = av_frame_ref(f, decoded_frame);
1744 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1745 if (ret == AVERROR_EOF) {
1746 ret = 0; /* ignore */
1747 } else if (ret < 0) {
1748 av_log(NULL, AV_LOG_FATAL,
1749 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1754 av_frame_unref(ist->filter_frame);
1755 av_frame_unref(decoded_frame);
1756 av_free(buffer_to_free);
1757 return err < 0 ? err : ret;
1760 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1762 AVSubtitle subtitle;
1763 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1764 &subtitle, got_output, pkt);
1766 if (*got_output || ret<0 || pkt->size)
1767 decode_error_stat[ret<0] ++;
1769 if (ret < 0 || !*got_output) {
1771 sub2video_flush(ist);
1775 if (ist->fix_sub_duration) {
1776 if (ist->prev_sub.got_output) {
1777 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1778 1000, AV_TIME_BASE);
1779 if (end < ist->prev_sub.subtitle.end_display_time) {
1780 av_log(ist->st->codec, AV_LOG_DEBUG,
1781 "Subtitle duration reduced from %d to %d\n",
1782 ist->prev_sub.subtitle.end_display_time, end);
1783 ist->prev_sub.subtitle.end_display_time = end;
1786 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1787 FFSWAP(int, ret, ist->prev_sub.ret);
1788 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1791 sub2video_update(ist, &subtitle);
1793 if (!*got_output || !subtitle.num_rects)
1796 for (i = 0; i < nb_output_streams; i++) {
1797 OutputStream *ost = output_streams[i];
1799 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1802 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1805 avsubtitle_free(&subtitle);
1809 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1810 static int output_packet(InputStream *ist, const AVPacket *pkt)
1816 if (!ist->saw_first_ts) {
1817 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;
1819 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1820 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1821 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1823 ist->saw_first_ts = 1;
1826 if (ist->next_dts == AV_NOPTS_VALUE)
1827 ist->next_dts = ist->dts;
1828 if (ist->next_pts == AV_NOPTS_VALUE)
1829 ist->next_pts = ist->pts;
1833 av_init_packet(&avpkt);
1841 if (pkt->dts != AV_NOPTS_VALUE) {
1842 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1843 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1844 ist->next_pts = ist->pts = ist->dts;
1847 // while we have more to decode or while the decoder did output something on EOF
1848 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1852 ist->pts = ist->next_pts;
1853 ist->dts = ist->next_dts;
1855 if (avpkt.size && avpkt.size != pkt->size) {
1856 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1857 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1858 ist->showed_multi_packet_warning = 1;
1861 switch (ist->st->codec->codec_type) {
1862 case AVMEDIA_TYPE_AUDIO:
1863 ret = decode_audio (ist, &avpkt, &got_output);
1865 case AVMEDIA_TYPE_VIDEO:
1866 ret = decode_video (ist, &avpkt, &got_output);
1867 if (avpkt.duration) {
1868 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1869 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1870 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1871 duration = ((int64_t)AV_TIME_BASE *
1872 ist->st->codec->time_base.num * ticks) /
1873 ist->st->codec->time_base.den;
1877 if(ist->dts != AV_NOPTS_VALUE && duration) {
1878 ist->next_dts += duration;
1880 ist->next_dts = AV_NOPTS_VALUE;
1883 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1885 case AVMEDIA_TYPE_SUBTITLE:
1886 ret = transcode_subtitles(ist, &avpkt, &got_output);
1896 avpkt.pts= AV_NOPTS_VALUE;
1898 // touch data and size only if not EOF
1900 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1910 /* handle stream copy */
1911 if (!ist->decoding_needed) {
1912 ist->dts = ist->next_dts;
1913 switch (ist->st->codec->codec_type) {
1914 case AVMEDIA_TYPE_AUDIO:
1915 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1916 ist->st->codec->sample_rate;
1918 case AVMEDIA_TYPE_VIDEO:
1919 if (ist->framerate.num) {
1920 // TODO: Remove work-around for c99-to-c89 issue 7
1921 AVRational time_base_q = AV_TIME_BASE_Q;
1922 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1923 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1924 } else if (pkt->duration) {
1925 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1926 } else if(ist->st->codec->time_base.num != 0) {
1927 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1928 ist->next_dts += ((int64_t)AV_TIME_BASE *
1929 ist->st->codec->time_base.num * ticks) /
1930 ist->st->codec->time_base.den;
1934 ist->pts = ist->dts;
1935 ist->next_pts = ist->next_dts;
1937 for (i = 0; pkt && i < nb_output_streams; i++) {
1938 OutputStream *ost = output_streams[i];
1940 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1943 do_streamcopy(ist, ost, pkt);
1949 static void print_sdp(void)
1953 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1957 for (i = 0; i < nb_output_files; i++)
1958 avc[i] = output_files[i]->ctx;
1960 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1961 printf("SDP:\n%s\n", sdp);
1966 static int init_input_stream(int ist_index, char *error, int error_len)
1969 InputStream *ist = input_streams[ist_index];
1971 if (ist->decoding_needed) {
1972 AVCodec *codec = ist->dec;
1974 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1975 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1976 return AVERROR(EINVAL);
1979 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1981 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1982 av_dict_set(&ist->opts, "threads", "auto", 0);
1983 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1985 if (ret == AVERROR_EXPERIMENTAL)
1986 abort_codec_experimental(codec, 0);
1988 av_strerror(ret, errbuf, sizeof(errbuf));
1990 snprintf(error, error_len,
1991 "Error while opening decoder for input stream "
1993 ist->file_index, ist->st->index, errbuf);
1996 assert_avoptions(ist->opts);
1999 ist->next_pts = AV_NOPTS_VALUE;
2000 ist->next_dts = AV_NOPTS_VALUE;
2006 static InputStream *get_input_stream(OutputStream *ost)
2008 if (ost->source_index >= 0)
2009 return input_streams[ost->source_index];
2013 static int compare_int64(const void *a, const void *b)
2015 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2016 return va < vb ? -1 : va > vb ? +1 : 0;
2019 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2020 AVCodecContext *avctx)
2023 int n = 1, i, size, index = 0;
2026 for (p = kf; *p; p++)
2030 pts = av_malloc(sizeof(*pts) * size);
2032 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2037 for (i = 0; i < n; i++) {
2038 char *next = strchr(p, ',');
2043 if (!memcmp(p, "chapters", 8)) {
2045 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2048 if (avf->nb_chapters > INT_MAX - size ||
2049 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2051 av_log(NULL, AV_LOG_FATAL,
2052 "Could not allocate forced key frames array.\n");
2055 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2056 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2058 for (j = 0; j < avf->nb_chapters; j++) {
2059 AVChapter *c = avf->chapters[j];
2060 av_assert1(index < size);
2061 pts[index++] = av_rescale_q(c->start, c->time_base,
2062 avctx->time_base) + t;
2067 t = parse_time_or_die("force_key_frames", p, 1);
2068 av_assert1(index < size);
2069 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2076 av_assert0(index == size);
2077 qsort(pts, size, sizeof(*pts), compare_int64);
2078 ost->forced_kf_count = size;
2079 ost->forced_kf_pts = pts;
2082 static void report_new_stream(int input_index, AVPacket *pkt)
2084 InputFile *file = input_files[input_index];
2085 AVStream *st = file->ctx->streams[pkt->stream_index];
2087 if (pkt->stream_index < file->nb_streams_warn)
2089 av_log(file->ctx, AV_LOG_WARNING,
2090 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2091 av_get_media_type_string(st->codec->codec_type),
2092 input_index, pkt->stream_index,
2093 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2094 file->nb_streams_warn = pkt->stream_index + 1;
2097 static int transcode_init(void)
2099 int ret = 0, i, j, k;
2100 AVFormatContext *oc;
2101 AVCodecContext *codec;
2107 /* init framerate emulation */
2108 for (i = 0; i < nb_input_files; i++) {
2109 InputFile *ifile = input_files[i];
2110 if (ifile->rate_emu)
2111 for (j = 0; j < ifile->nb_streams; j++)
2112 input_streams[j + ifile->ist_index]->start = av_gettime();
2115 /* output stream init */
2116 for (i = 0; i < nb_output_files; i++) {
2117 oc = output_files[i]->ctx;
2118 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2119 av_dump_format(oc, i, oc->filename, 1);
2120 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2121 return AVERROR(EINVAL);
2125 /* init complex filtergraphs */
2126 for (i = 0; i < nb_filtergraphs; i++)
2127 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2130 /* for each output stream, we compute the right encoding parameters */
2131 for (i = 0; i < nb_output_streams; i++) {
2132 AVCodecContext *icodec = NULL;
2133 ost = output_streams[i];
2134 oc = output_files[ost->file_index]->ctx;
2135 ist = get_input_stream(ost);
2137 if (ost->attachment_filename)
2140 codec = ost->st->codec;
2143 icodec = ist->st->codec;
2145 ost->st->disposition = ist->st->disposition;
2146 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2147 codec->chroma_sample_location = icodec->chroma_sample_location;
2150 if (ost->stream_copy) {
2152 uint64_t extra_size;
2154 av_assert0(ist && !ost->filter);
2156 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2158 if (extra_size > INT_MAX) {
2159 return AVERROR(EINVAL);
2162 /* if stream_copy is selected, no need to decode or encode */
2163 codec->codec_id = icodec->codec_id;
2164 codec->codec_type = icodec->codec_type;
2166 if (!codec->codec_tag) {
2167 unsigned int codec_tag;
2168 if (!oc->oformat->codec_tag ||
2169 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2170 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2171 codec->codec_tag = icodec->codec_tag;
2174 codec->bit_rate = icodec->bit_rate;
2175 codec->rc_max_rate = icodec->rc_max_rate;
2176 codec->rc_buffer_size = icodec->rc_buffer_size;
2177 codec->field_order = icodec->field_order;
2178 codec->extradata = av_mallocz(extra_size);
2179 if (!codec->extradata) {
2180 return AVERROR(ENOMEM);
2182 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2183 codec->extradata_size= icodec->extradata_size;
2184 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2186 codec->time_base = ist->st->time_base;
2188 * Avi is a special case here because it supports variable fps but
2189 * having the fps and timebase differe significantly adds quite some
2192 if(!strcmp(oc->oformat->name, "avi")) {
2193 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2194 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2195 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2196 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2198 codec->time_base.num = ist->st->r_frame_rate.den;
2199 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2200 codec->ticks_per_frame = 2;
2201 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2202 && av_q2d(ist->st->time_base) < 1.0/500
2204 codec->time_base = icodec->time_base;
2205 codec->time_base.num *= icodec->ticks_per_frame;
2206 codec->time_base.den *= 2;
2207 codec->ticks_per_frame = 2;
2209 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2210 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2211 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2212 && strcmp(oc->oformat->name, "f4v")
2214 if( copy_tb<0 && icodec->time_base.den
2215 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2216 && av_q2d(ist->st->time_base) < 1.0/500
2218 codec->time_base = icodec->time_base;
2219 codec->time_base.num *= icodec->ticks_per_frame;
2222 if ( codec->codec_tag == AV_RL32("tmcd")
2223 && icodec->time_base.num < icodec->time_base.den
2224 && icodec->time_base.num > 0
2225 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2226 codec->time_base = icodec->time_base;
2229 if (ist && !ost->frame_rate.num)
2230 ost->frame_rate = ist->framerate;
2231 if(ost->frame_rate.num)
2232 codec->time_base = av_inv_q(ost->frame_rate);
2234 av_reduce(&codec->time_base.num, &codec->time_base.den,
2235 codec->time_base.num, codec->time_base.den, INT_MAX);
2237 switch (codec->codec_type) {
2238 case AVMEDIA_TYPE_AUDIO:
2239 if (audio_volume != 256) {
2240 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2243 codec->channel_layout = icodec->channel_layout;
2244 codec->sample_rate = icodec->sample_rate;
2245 codec->channels = icodec->channels;
2246 codec->frame_size = icodec->frame_size;
2247 codec->audio_service_type = icodec->audio_service_type;
2248 codec->block_align = icodec->block_align;
2249 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2250 codec->block_align= 0;
2251 if(codec->codec_id == AV_CODEC_ID_AC3)
2252 codec->block_align= 0;
2254 case AVMEDIA_TYPE_VIDEO:
2255 codec->pix_fmt = icodec->pix_fmt;
2256 codec->width = icodec->width;
2257 codec->height = icodec->height;
2258 codec->has_b_frames = icodec->has_b_frames;
2259 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2261 av_mul_q(ost->frame_aspect_ratio,
2262 (AVRational){ codec->height, codec->width });
2263 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2264 "with stream copy may produce invalid files\n");
2266 else if (ist->st->sample_aspect_ratio.num)
2267 sar = ist->st->sample_aspect_ratio;
2269 sar = icodec->sample_aspect_ratio;
2270 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
2271 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2273 case AVMEDIA_TYPE_SUBTITLE:
2274 codec->width = icodec->width;
2275 codec->height = icodec->height;
2277 case AVMEDIA_TYPE_DATA:
2278 case AVMEDIA_TYPE_ATTACHMENT:
2285 ost->enc = avcodec_find_encoder(codec->codec_id);
2287 /* should only happen when a default codec is not present. */
2288 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2289 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2290 ret = AVERROR(EINVAL);
2295 ist->decoding_needed++;
2296 ost->encoding_needed = 1;
2299 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2300 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2302 fg = init_simple_filtergraph(ist, ost);
2303 if (configure_filtergraph(fg)) {
2304 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2309 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2310 if (ost->filter && !ost->frame_rate.num)
2311 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2312 if (ist && !ost->frame_rate.num)
2313 ost->frame_rate = ist->framerate;
2314 if (ist && !ost->frame_rate.num)
2315 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2316 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2317 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2318 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2319 ost->frame_rate = ost->enc->supported_framerates[idx];
2323 switch (codec->codec_type) {
2324 case AVMEDIA_TYPE_AUDIO:
2325 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2326 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2327 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2328 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2329 codec->time_base = (AVRational){ 1, codec->sample_rate };
2331 case AVMEDIA_TYPE_VIDEO:
2332 codec->time_base = av_inv_q(ost->frame_rate);
2333 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2334 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2335 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2336 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2337 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2338 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2340 for (j = 0; j < ost->forced_kf_count; j++)
2341 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2345 codec->width = ost->filter->filter->inputs[0]->w;
2346 codec->height = ost->filter->filter->inputs[0]->h;
2347 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2348 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2349 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2350 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2351 if (!strncmp(ost->enc->name, "libx264", 7) &&
2352 codec->pix_fmt == AV_PIX_FMT_NONE &&
2353 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2354 av_log(NULL, AV_LOG_WARNING,
2355 "No pixel format specified, %s for H.264 encoding chosen.\n"
2356 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2357 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2358 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2359 codec->pix_fmt == AV_PIX_FMT_NONE &&
2360 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2361 av_log(NULL, AV_LOG_WARNING,
2362 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2363 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2364 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2365 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2368 codec->width != icodec->width ||
2369 codec->height != icodec->height ||
2370 codec->pix_fmt != icodec->pix_fmt) {
2371 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2374 if (ost->forced_keyframes) {
2375 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2376 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2377 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2379 av_log(NULL, AV_LOG_ERROR,
2380 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2383 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2384 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2385 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2386 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2388 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2392 case AVMEDIA_TYPE_SUBTITLE:
2393 codec->time_base = (AVRational){1, 1000};
2394 if (!codec->width) {
2395 codec->width = input_streams[ost->source_index]->st->codec->width;
2396 codec->height = input_streams[ost->source_index]->st->codec->height;
2404 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2405 char logfilename[1024];
2408 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2409 ost->logfile_prefix ? ost->logfile_prefix :
2410 DEFAULT_PASS_LOGFILENAME_PREFIX,
2412 if (!strcmp(ost->enc->name, "libx264")) {
2413 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2415 if (codec->flags & CODEC_FLAG_PASS2) {
2417 size_t logbuffer_size;
2418 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2419 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2423 codec->stats_in = logbuffer;
2425 if (codec->flags & CODEC_FLAG_PASS1) {
2426 f = fopen(logfilename, "wb");
2428 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2429 logfilename, strerror(errno));
2439 /* open each encoder */
2440 for (i = 0; i < nb_output_streams; i++) {
2441 ost = output_streams[i];
2442 if (ost->encoding_needed) {
2443 AVCodec *codec = ost->enc;
2444 AVCodecContext *dec = NULL;
2446 if ((ist = get_input_stream(ost)))
2447 dec = ist->st->codec;
2448 if (dec && dec->subtitle_header) {
2449 /* ASS code assumes this buffer is null terminated so add extra byte. */
2450 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2451 if (!ost->st->codec->subtitle_header) {
2452 ret = AVERROR(ENOMEM);
2455 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2456 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2458 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2459 av_dict_set(&ost->opts, "threads", "auto", 0);
2460 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2461 if (ret == AVERROR_EXPERIMENTAL)
2462 abort_codec_experimental(codec, 1);
2463 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2464 ost->file_index, ost->index);
2467 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2468 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2469 av_buffersink_set_frame_size(ost->filter->filter,
2470 ost->st->codec->frame_size);
2471 assert_avoptions(ost->opts);
2472 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2473 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2474 " It takes bits/s as argument, not kbits/s\n");
2475 extra_size += ost->st->codec->extradata_size;
2477 if (ost->st->codec->me_threshold)
2478 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2480 av_opt_set_dict(ost->st->codec, &ost->opts);
2484 /* init input streams */
2485 for (i = 0; i < nb_input_streams; i++)
2486 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2487 for (i = 0; i < nb_output_streams; i++) {
2488 ost = output_streams[i];
2489 avcodec_close(ost->st->codec);
2494 /* discard unused programs */
2495 for (i = 0; i < nb_input_files; i++) {
2496 InputFile *ifile = input_files[i];
2497 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2498 AVProgram *p = ifile->ctx->programs[j];
2499 int discard = AVDISCARD_ALL;
2501 for (k = 0; k < p->nb_stream_indexes; k++)
2502 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2503 discard = AVDISCARD_DEFAULT;
2506 p->discard = discard;
2510 /* open files and write file headers */
2511 for (i = 0; i < nb_output_files; i++) {
2512 oc = output_files[i]->ctx;
2513 oc->interrupt_callback = int_cb;
2514 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2516 av_strerror(ret, errbuf, sizeof(errbuf));
2517 snprintf(error, sizeof(error),
2518 "Could not write header for output file #%d "
2519 "(incorrect codec parameters ?): %s",
2521 ret = AVERROR(EINVAL);
2524 // assert_avoptions(output_files[i]->opts);
2525 if (strcmp(oc->oformat->name, "rtp")) {
2531 /* dump the file output parameters - cannot be done before in case
2533 for (i = 0; i < nb_output_files; i++) {
2534 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2537 /* dump the stream mapping */
2538 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2539 for (i = 0; i < nb_input_streams; i++) {
2540 ist = input_streams[i];
2542 for (j = 0; j < ist->nb_filters; j++) {
2543 if (ist->filters[j]->graph->graph_desc) {
2544 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2545 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2546 ist->filters[j]->name);
2547 if (nb_filtergraphs > 1)
2548 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2549 av_log(NULL, AV_LOG_INFO, "\n");
2554 for (i = 0; i < nb_output_streams; i++) {
2555 ost = output_streams[i];
2557 if (ost->attachment_filename) {
2558 /* an attached file */
2559 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2560 ost->attachment_filename, ost->file_index, ost->index);
2564 if (ost->filter && ost->filter->graph->graph_desc) {
2565 /* output from a complex graph */
2566 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2567 if (nb_filtergraphs > 1)
2568 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2570 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2571 ost->index, ost->enc ? ost->enc->name : "?");
2575 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2576 input_streams[ost->source_index]->file_index,
2577 input_streams[ost->source_index]->st->index,
2580 if (ost->sync_ist != input_streams[ost->source_index])
2581 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2582 ost->sync_ist->file_index,
2583 ost->sync_ist->st->index);
2584 if (ost->stream_copy)
2585 av_log(NULL, AV_LOG_INFO, " (copy)");
2587 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2588 input_streams[ost->source_index]->dec->name : "?",
2589 ost->enc ? ost->enc->name : "?");
2590 av_log(NULL, AV_LOG_INFO, "\n");
2594 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2605 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2606 static int need_output(void)
2610 for (i = 0; i < nb_output_streams; i++) {
2611 OutputStream *ost = output_streams[i];
2612 OutputFile *of = output_files[ost->file_index];
2613 AVFormatContext *os = output_files[ost->file_index]->ctx;
2615 if (ost->finished ||
2616 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2618 if (ost->frame_number >= ost->max_frames) {
2620 for (j = 0; j < of->ctx->nb_streams; j++)
2621 close_output_stream(output_streams[of->ost_index + j]);
2632 * Select the output stream to process.
2634 * @return selected output stream, or NULL if none available
2636 static OutputStream *choose_output(void)
2639 int64_t opts_min = INT64_MAX;
2640 OutputStream *ost_min = NULL;
2642 for (i = 0; i < nb_output_streams; i++) {
2643 OutputStream *ost = output_streams[i];
2644 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2646 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2654 static int check_keyboard_interaction(int64_t cur_time)
2657 static int64_t last_time;
2658 if (received_nb_signals)
2659 return AVERROR_EXIT;
2660 /* read_key() returns 0 on EOF */
2661 if(cur_time - last_time >= 100000 && !run_as_daemon){
2663 last_time = cur_time;
2667 return AVERROR_EXIT;
2668 if (key == '+') av_log_set_level(av_log_get_level()+10);
2669 if (key == '-') av_log_set_level(av_log_get_level()-10);
2670 if (key == 's') qp_hist ^= 1;
2673 do_hex_dump = do_pkt_dump = 0;
2674 } else if(do_pkt_dump){
2678 av_log_set_level(AV_LOG_DEBUG);
2680 if (key == 'c' || key == 'C'){
2681 char buf[4096], target[64], command[256], arg[256] = {0};
2684 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
2686 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2691 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2692 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2693 target, time, command, arg);
2694 for (i = 0; i < nb_filtergraphs; i++) {
2695 FilterGraph *fg = filtergraphs[i];
2698 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2699 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2700 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
2701 } else if (key == 'c') {
2702 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
2703 ret = AVERROR_PATCHWELCOME;
2705 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2710 av_log(NULL, AV_LOG_ERROR,
2711 "Parse error, at least 3 arguments were expected, "
2712 "only %d given in string '%s'\n", n, buf);
2715 if (key == 'd' || key == 'D'){
2718 debug = input_streams[0]->st->codec->debug<<1;
2719 if(!debug) debug = 1;
2720 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2723 if(scanf("%d", &debug)!=1)
2724 fprintf(stderr,"error parsing debug value\n");
2725 for(i=0;i<nb_input_streams;i++) {
2726 input_streams[i]->st->codec->debug = debug;
2728 for(i=0;i<nb_output_streams;i++) {
2729 OutputStream *ost = output_streams[i];
2730 ost->st->codec->debug = debug;
2732 if(debug) av_log_set_level(AV_LOG_DEBUG);
2733 fprintf(stderr,"debug=%d\n", debug);
2736 fprintf(stderr, "key function\n"
2737 "? show this help\n"
2738 "+ increase verbosity\n"
2739 "- decrease verbosity\n"
2740 "c Send command to first matching filter supporting it\n"
2741 "C Send/Que command to all matching filters\n"
2742 "D cycle through available debug modes\n"
2743 "h dump packets/hex press to cycle through the 3 states\n"
2745 "s Show QP histogram\n"
2752 static void *input_thread(void *arg)
2757 while (!transcoding_finished && ret >= 0) {
2759 ret = av_read_frame(f->ctx, &pkt);
2761 if (ret == AVERROR(EAGAIN)) {
2768 pthread_mutex_lock(&f->fifo_lock);
2769 while (!av_fifo_space(f->fifo))
2770 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2772 av_dup_packet(&pkt);
2773 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2775 pthread_mutex_unlock(&f->fifo_lock);
2782 static void free_input_threads(void)
2786 if (nb_input_files == 1)
2789 transcoding_finished = 1;
2791 for (i = 0; i < nb_input_files; i++) {
2792 InputFile *f = input_files[i];
2795 if (!f->fifo || f->joined)
2798 pthread_mutex_lock(&f->fifo_lock);
2799 while (av_fifo_size(f->fifo)) {
2800 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2801 av_free_packet(&pkt);
2803 pthread_cond_signal(&f->fifo_cond);
2804 pthread_mutex_unlock(&f->fifo_lock);
2806 pthread_join(f->thread, NULL);
2809 while (av_fifo_size(f->fifo)) {
2810 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2811 av_free_packet(&pkt);
2813 av_fifo_free(f->fifo);
2817 static int init_input_threads(void)
2821 if (nb_input_files == 1)
2824 for (i = 0; i < nb_input_files; i++) {
2825 InputFile *f = input_files[i];
2827 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2828 return AVERROR(ENOMEM);
2830 pthread_mutex_init(&f->fifo_lock, NULL);
2831 pthread_cond_init (&f->fifo_cond, NULL);
2833 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2834 return AVERROR(ret);
2839 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2843 pthread_mutex_lock(&f->fifo_lock);
2845 if (av_fifo_size(f->fifo)) {
2846 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2847 pthread_cond_signal(&f->fifo_cond);
2852 ret = AVERROR(EAGAIN);
2855 pthread_mutex_unlock(&f->fifo_lock);
2861 static int get_input_packet(InputFile *f, AVPacket *pkt)
2865 for (i = 0; i < f->nb_streams; i++) {
2866 InputStream *ist = input_streams[f->ist_index + i];
2867 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2868 int64_t now = av_gettime() - ist->start;
2870 return AVERROR(EAGAIN);
2875 if (nb_input_files > 1)
2876 return get_input_packet_mt(f, pkt);
2878 return av_read_frame(f->ctx, pkt);
2881 static int got_eagain(void)
2884 for (i = 0; i < nb_output_streams; i++)
2885 if (output_streams[i]->unavailable)
2890 static void reset_eagain(void)
2893 for (i = 0; i < nb_input_files; i++)
2894 input_files[i]->eagain = 0;
2895 for (i = 0; i < nb_output_streams; i++)
2896 output_streams[i]->unavailable = 0;
2901 * - 0 -- one packet was read and processed
2902 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2903 * this function should be called again
2904 * - AVERROR_EOF -- this function should not be called again
2906 static int process_input(int file_index)
2908 InputFile *ifile = input_files[file_index];
2909 AVFormatContext *is;
2915 ret = get_input_packet(ifile, &pkt);
2917 if (ret == AVERROR(EAGAIN)) {
2922 if (ret != AVERROR_EOF) {
2923 print_error(is->filename, ret);
2927 ifile->eof_reached = 1;
2929 for (i = 0; i < ifile->nb_streams; i++) {
2930 ist = input_streams[ifile->ist_index + i];
2931 if (ist->decoding_needed)
2932 output_packet(ist, NULL);
2934 /* mark all outputs that don't go through lavfi as finished */
2935 for (j = 0; j < nb_output_streams; j++) {
2936 OutputStream *ost = output_streams[j];
2938 if (ost->source_index == ifile->ist_index + i &&
2939 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2940 close_output_stream(ost);
2944 return AVERROR(EAGAIN);
2950 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2951 is->streams[pkt.stream_index]);
2953 /* the following test is needed in case new streams appear
2954 dynamically in stream : we ignore them */
2955 if (pkt.stream_index >= ifile->nb_streams) {
2956 report_new_stream(file_index, &pkt);
2957 goto discard_packet;
2960 ist = input_streams[ifile->ist_index + pkt.stream_index];
2962 goto discard_packet;
2965 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2966 "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",
2967 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2968 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2969 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2970 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2971 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2972 av_ts2str(input_files[ist->file_index]->ts_offset),
2973 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2976 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2977 int64_t stime, stime2;
2978 // Correcting starttime based on the enabled streams
2979 // 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.
2980 // so we instead do it here as part of discontinuity handling
2981 if ( ist->next_dts == AV_NOPTS_VALUE
2982 && ifile->ts_offset == -is->start_time
2983 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2984 int64_t new_start_time = INT64_MAX;
2985 for (i=0; i<is->nb_streams; i++) {
2986 AVStream *st = is->streams[i];
2987 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2989 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2991 if (new_start_time > is->start_time) {
2992 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2993 ifile->ts_offset = -new_start_time;
2997 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2998 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2999 ist->wrap_correction_done = 1;
3001 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3002 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3003 ist->wrap_correction_done = 0;
3005 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3006 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3007 ist->wrap_correction_done = 0;
3011 if (pkt.dts != AV_NOPTS_VALUE)
3012 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3013 if (pkt.pts != AV_NOPTS_VALUE)
3014 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3016 if (pkt.pts != AV_NOPTS_VALUE)
3017 pkt.pts *= ist->ts_scale;
3018 if (pkt.dts != AV_NOPTS_VALUE)
3019 pkt.dts *= ist->ts_scale;
3021 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3022 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3023 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3024 int64_t delta = pkt_dts - ifile->last_ts;
3025 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3026 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3027 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3028 ifile->ts_offset -= delta;
3029 av_log(NULL, AV_LOG_DEBUG,
3030 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3031 delta, ifile->ts_offset);
3032 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3033 if (pkt.pts != AV_NOPTS_VALUE)
3034 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3038 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3040 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3041 int64_t delta = pkt_dts - ist->next_dts;
3042 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3043 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3044 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3045 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3046 pkt_dts + AV_TIME_BASE/10 < ist->pts){
3047 ifile->ts_offset -= delta;
3048 av_log(NULL, AV_LOG_DEBUG,
3049 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3050 delta, ifile->ts_offset);
3051 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3052 if (pkt.pts != AV_NOPTS_VALUE)
3053 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3056 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3057 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3059 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3060 pkt.dts = AV_NOPTS_VALUE;
3062 if (pkt.pts != AV_NOPTS_VALUE){
3063 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3064 delta = pkt_pts - ist->next_dts;
3065 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3066 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3068 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3069 pkt.pts = AV_NOPTS_VALUE;
3075 if (pkt.dts != AV_NOPTS_VALUE)
3076 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3079 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",
3080 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3081 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3082 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3083 av_ts2str(input_files[ist->file_index]->ts_offset),
3084 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3087 sub2video_heartbeat(ist, pkt.pts);
3089 ret = output_packet(ist, &pkt);
3092 av_strerror(ret, buf, sizeof(buf));
3093 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3094 ist->file_index, ist->st->index, buf);
3100 av_free_packet(&pkt);
3106 * Perform a step of transcoding for the specified filter graph.
3108 * @param[in] graph filter graph to consider
3109 * @param[out] best_ist input stream where a frame would allow to continue
3110 * @return 0 for success, <0 for error
3112 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3115 int nb_requests, nb_requests_max = 0;
3116 InputFilter *ifilter;
3120 ret = avfilter_graph_request_oldest(graph->graph);
3122 return reap_filters();
3124 if (ret == AVERROR_EOF) {
3125 ret = reap_filters();
3126 for (i = 0; i < graph->nb_outputs; i++)
3127 close_output_stream(graph->outputs[i]->ost);
3130 if (ret != AVERROR(EAGAIN))
3133 for (i = 0; i < graph->nb_inputs; i++) {
3134 ifilter = graph->inputs[i];
3136 if (input_files[ist->file_index]->eagain ||
3137 input_files[ist->file_index]->eof_reached)
3139 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3140 if (nb_requests > nb_requests_max) {
3141 nb_requests_max = nb_requests;
3147 for (i = 0; i < graph->nb_outputs; i++)
3148 graph->outputs[i]->ost->unavailable = 1;
3154 * Run a single step of transcoding.
3156 * @return 0 for success, <0 for error
3158 static int transcode_step(void)
3164 ost = choose_output();
3171 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3176 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3181 av_assert0(ost->source_index >= 0);
3182 ist = input_streams[ost->source_index];
3185 ret = process_input(ist->file_index);
3186 if (ret == AVERROR(EAGAIN)) {
3187 if (input_files[ist->file_index]->eagain)
3188 ost->unavailable = 1;
3192 return ret == AVERROR_EOF ? 0 : ret;
3194 return reap_filters();
3198 * The following code is the main loop of the file converter
3200 static int transcode(void)
3203 AVFormatContext *os;
3206 int64_t timer_start;
3208 ret = transcode_init();
3212 if (stdin_interaction) {
3213 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3216 timer_start = av_gettime();
3219 if ((ret = init_input_threads()) < 0)
3223 while (!received_sigterm) {
3224 int64_t cur_time= av_gettime();
3226 /* if 'q' pressed, exits */
3227 if (stdin_interaction)
3228 if (check_keyboard_interaction(cur_time) < 0)
3231 /* check if there's any stream where output is still needed */
3232 if (!need_output()) {
3233 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3237 ret = transcode_step();
3239 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3242 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3246 /* dump report by using the output first video and audio streams */
3247 print_report(0, timer_start, cur_time);
3250 free_input_threads();
3253 /* at the end of stream, we must flush the decoder buffers */
3254 for (i = 0; i < nb_input_streams; i++) {
3255 ist = input_streams[i];
3256 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3257 output_packet(ist, NULL);
3264 /* write the trailer if needed and close file */
3265 for (i = 0; i < nb_output_files; i++) {
3266 os = output_files[i]->ctx;
3267 av_write_trailer(os);
3270 /* dump report by using the first video and audio streams */
3271 print_report(1, timer_start, av_gettime());
3273 /* close each encoder */
3274 for (i = 0; i < nb_output_streams; i++) {
3275 ost = output_streams[i];
3276 if (ost->encoding_needed) {
3277 av_freep(&ost->st->codec->stats_in);
3278 avcodec_close(ost->st->codec);
3282 /* close each decoder */
3283 for (i = 0; i < nb_input_streams; i++) {
3284 ist = input_streams[i];
3285 if (ist->decoding_needed) {
3286 avcodec_close(ist->st->codec);
3295 free_input_threads();
3298 if (output_streams) {
3299 for (i = 0; i < nb_output_streams; i++) {
3300 ost = output_streams[i];
3302 if (ost->stream_copy)
3303 av_freep(&ost->st->codec->extradata);
3305 fclose(ost->logfile);
3306 ost->logfile = NULL;
3308 av_freep(&ost->st->codec->subtitle_header);
3309 av_freep(&ost->forced_kf_pts);
3310 av_freep(&ost->apad);
3311 av_dict_free(&ost->opts);
3312 av_dict_free(&ost->swr_opts);
3313 av_dict_free(&ost->resample_opts);
3321 static int64_t getutime(void)
3324 struct rusage rusage;
3326 getrusage(RUSAGE_SELF, &rusage);
3327 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3328 #elif HAVE_GETPROCESSTIMES
3330 FILETIME c, e, k, u;
3331 proc = GetCurrentProcess();
3332 GetProcessTimes(proc, &c, &e, &k, &u);
3333 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3335 return av_gettime();
3339 static int64_t getmaxrss(void)
3341 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3342 struct rusage rusage;
3343 getrusage(RUSAGE_SELF, &rusage);
3344 return (int64_t)rusage.ru_maxrss * 1024;
3345 #elif HAVE_GETPROCESSMEMORYINFO
3347 PROCESS_MEMORY_COUNTERS memcounters;
3348 proc = GetCurrentProcess();
3349 memcounters.cb = sizeof(memcounters);
3350 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3351 return memcounters.PeakPagefileUsage;
3357 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3361 int main(int argc, char **argv)
3366 register_exit(ffmpeg_cleanup);
3368 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3370 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3371 parse_loglevel(argc, argv, options);
3373 if(argc>1 && !strcmp(argv[1], "-d")){
3375 av_log_set_callback(log_callback_null);
3380 avcodec_register_all();
3382 avdevice_register_all();
3384 avfilter_register_all();
3386 avformat_network_init();
3388 show_banner(argc, argv, options);
3392 /* parse options and open all input/output files */
3393 ret = ffmpeg_parse_options(argc, argv);
3397 if (nb_output_files <= 0 && nb_input_files == 0) {
3399 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3403 /* file converter / grab */
3404 if (nb_output_files <= 0) {
3405 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3409 // if (nb_input_files == 0) {
3410 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3414 current_time = ti = getutime();
3415 if (transcode() < 0)
3417 ti = getutime() - ti;
3419 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3421 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3422 decode_error_stat[0], decode_error_stat[1]);
3423 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3426 exit_program(received_nb_signals ? 255 : 0);