2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libswresample/swresample.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/channel_layout.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/samplefmt.h"
49 #include "libavutil/colorspace.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/intreadwrite.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/mathematics.h"
54 #include "libavutil/pixdesc.h"
55 #include "libavutil/avstring.h"
56 #include "libavutil/libm.h"
57 #include "libavutil/imgutils.h"
58 #include "libavutil/timestamp.h"
59 #include "libavutil/bprint.h"
60 #include "libavutil/time.h"
61 #include "libavformat/os_support.h"
63 #include "libavformat/ffm.h" // not public API
65 # include "libavfilter/avcodec.h"
66 # include "libavfilter/avfilter.h"
67 # include "libavfilter/avfiltergraph.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 const char *const forced_keyframes_const_names[] = {
121 static void do_video_stats(OutputStream *ost, int frame_size);
122 static int64_t getutime(void);
123 static int64_t getmaxrss(void);
125 static int run_as_daemon = 0;
126 static int64_t video_size = 0;
127 static int64_t audio_size = 0;
128 static int64_t subtitle_size = 0;
129 static int64_t extra_size = 0;
130 static int nb_frames_dup = 0;
131 static int nb_frames_drop = 0;
133 static int current_time;
134 AVIOContext *progress_avio = NULL;
136 static uint8_t *subtitle_out;
139 /* signal to input threads that they should exit; set by the main thread */
140 static int transcoding_finished;
143 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
145 InputStream **input_streams = NULL;
146 int nb_input_streams = 0;
147 InputFile **input_files = NULL;
148 int nb_input_files = 0;
150 OutputStream **output_streams = NULL;
151 int nb_output_streams = 0;
152 OutputFile **output_files = NULL;
153 int nb_output_files = 0;
155 FilterGraph **filtergraphs;
160 /* init terminal so that we can grab keys */
161 static struct termios oldtty;
162 static int restore_tty;
167 Convert subtitles to video with alpha to insert them in filter graphs.
168 This is a temporary solution until libavfilter gets real subtitles support.
171 static int sub2video_get_blank_frame(InputStream *ist)
174 AVFrame *frame = ist->sub2video.frame;
176 av_frame_unref(frame);
177 ist->sub2video.frame->width = ist->sub2video.w;
178 ist->sub2video.frame->height = ist->sub2video.h;
179 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
180 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
182 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
186 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
189 uint32_t *pal, *dst2;
193 if (r->type != SUBTITLE_BITMAP) {
194 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
197 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
198 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
202 dst += r->y * dst_linesize + r->x * 4;
203 src = r->pict.data[0];
204 pal = (uint32_t *)r->pict.data[1];
205 for (y = 0; y < r->h; y++) {
206 dst2 = (uint32_t *)dst;
208 for (x = 0; x < r->w; x++)
209 *(dst2++) = pal[*(src2++)];
211 src += r->pict.linesize[0];
215 static void sub2video_push_ref(InputStream *ist, int64_t pts)
217 AVFrame *frame = ist->sub2video.frame;
220 av_assert1(frame->data[0]);
221 ist->sub2video.last_pts = frame->pts = pts;
222 for (i = 0; i < ist->nb_filters; i++)
223 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
224 AV_BUFFERSRC_FLAG_KEEP_REF |
225 AV_BUFFERSRC_FLAG_PUSH);
228 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
230 int w = ist->sub2video.w, h = ist->sub2video.h;
231 AVFrame *frame = ist->sub2video.frame;
235 int64_t pts, end_pts;
240 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
241 AV_TIME_BASE_Q, ist->st->time_base);
242 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
243 AV_TIME_BASE_Q, ist->st->time_base);
244 num_rects = sub->num_rects;
246 pts = ist->sub2video.end_pts;
250 if (sub2video_get_blank_frame(ist) < 0) {
251 av_log(ist->st->codec, AV_LOG_ERROR,
252 "Impossible to get a blank canvas.\n");
255 dst = frame->data [0];
256 dst_linesize = frame->linesize[0];
257 for (i = 0; i < num_rects; i++)
258 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
259 sub2video_push_ref(ist, pts);
260 ist->sub2video.end_pts = end_pts;
263 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
265 InputFile *infile = input_files[ist->file_index];
269 /* When a frame is read from a file, examine all sub2video streams in
270 the same file and send the sub2video frame again. Otherwise, decoded
271 video frames could be accumulating in the filter graph while a filter
272 (possibly overlay) is desperately waiting for a subtitle frame. */
273 for (i = 0; i < infile->nb_streams; i++) {
274 InputStream *ist2 = input_streams[infile->ist_index + i];
275 if (!ist2->sub2video.frame)
277 /* subtitles seem to be usually muxed ahead of other streams;
278 if not, substracting a larger time here is necessary */
279 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
280 /* do not send the heartbeat frame if the subtitle is already ahead */
281 if (pts2 <= ist2->sub2video.last_pts)
283 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
284 sub2video_update(ist2, NULL);
285 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
286 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
288 sub2video_push_ref(ist2, pts2);
292 static void sub2video_flush(InputStream *ist)
296 for (i = 0; i < ist->nb_filters; i++)
297 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
300 /* end of sub2video hack */
304 av_log(NULL, AV_LOG_QUIET, "%s", "");
307 tcsetattr (0, TCSANOW, &oldtty);
311 static volatile int received_sigterm = 0;
312 static volatile int received_nb_signals = 0;
315 sigterm_handler(int sig)
317 received_sigterm = sig;
318 received_nb_signals++;
320 if(received_nb_signals > 3)
331 istty = isatty(0) && isatty(2);
333 if (istty && tcgetattr (0, &tty) == 0) {
338 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
339 |INLCR|IGNCR|ICRNL|IXON);
340 tty.c_oflag |= OPOST;
341 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
342 tty.c_cflag &= ~(CSIZE|PARENB);
347 tcsetattr (0, TCSANOW, &tty);
349 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
352 avformat_network_deinit();
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
357 signal(SIGXCPU, sigterm_handler);
361 /* read a key without blocking */
362 static int read_key(void)
374 n = select(1, &rfds, NULL, NULL, &tv);
383 # if HAVE_PEEKNAMEDPIPE
385 static HANDLE input_handle;
388 input_handle = GetStdHandle(STD_INPUT_HANDLE);
389 is_pipe = !GetConsoleMode(input_handle, &dw);
392 if (stdin->_cnt > 0) {
397 /* When running under a GUI, you will end here. */
398 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
399 // input pipe may have been closed by the program that ran ffmpeg
417 static int decode_interrupt_cb(void *ctx)
419 return received_nb_signals > 1;
422 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
424 static void exit_program(void)
429 int maxrss = getmaxrss() / 1024;
430 printf("bench: maxrss=%ikB\n", maxrss);
433 for (i = 0; i < nb_filtergraphs; i++) {
434 avfilter_graph_free(&filtergraphs[i]->graph);
435 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
436 av_freep(&filtergraphs[i]->inputs[j]->name);
437 av_freep(&filtergraphs[i]->inputs[j]);
439 av_freep(&filtergraphs[i]->inputs);
440 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
441 av_freep(&filtergraphs[i]->outputs[j]->name);
442 av_freep(&filtergraphs[i]->outputs[j]);
444 av_freep(&filtergraphs[i]->outputs);
445 av_freep(&filtergraphs[i]);
447 av_freep(&filtergraphs);
449 av_freep(&subtitle_out);
452 for (i = 0; i < nb_output_files; i++) {
453 AVFormatContext *s = output_files[i]->ctx;
454 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456 avformat_free_context(s);
457 av_dict_free(&output_files[i]->opts);
458 av_freep(&output_files[i]);
460 for (i = 0; i < nb_output_streams; i++) {
461 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
463 AVBitStreamFilterContext *next = bsfc->next;
464 av_bitstream_filter_close(bsfc);
467 output_streams[i]->bitstream_filters = NULL;
468 avcodec_free_frame(&output_streams[i]->filtered_frame);
470 av_freep(&output_streams[i]->forced_keyframes);
471 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
472 av_freep(&output_streams[i]->avfilter);
473 av_freep(&output_streams[i]->logfile_prefix);
474 av_freep(&output_streams[i]);
476 for (i = 0; i < nb_input_files; i++) {
477 avformat_close_input(&input_files[i]->ctx);
478 av_freep(&input_files[i]);
480 for (i = 0; i < nb_input_streams; i++) {
481 av_frame_free(&input_streams[i]->decoded_frame);
482 av_frame_free(&input_streams[i]->filter_frame);
483 av_dict_free(&input_streams[i]->opts);
484 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
485 av_frame_free(&input_streams[i]->sub2video.frame);
486 av_freep(&input_streams[i]->filters);
487 av_freep(&input_streams[i]);
492 av_free(vstats_filename);
494 av_freep(&input_streams);
495 av_freep(&input_files);
496 av_freep(&output_streams);
497 av_freep(&output_files);
502 avformat_network_deinit();
504 if (received_sigterm) {
505 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
506 (int) received_sigterm);
510 void assert_avoptions(AVDictionary *m)
512 AVDictionaryEntry *t;
513 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
514 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
519 static void abort_codec_experimental(AVCodec *c, int encoder)
524 static void update_benchmark(const char *fmt, ...)
526 if (do_benchmark_all) {
527 int64_t t = getutime();
533 vsnprintf(buf, sizeof(buf), fmt, va);
535 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
541 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
543 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
544 AVCodecContext *avctx = ost->st->codec;
547 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
548 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
549 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
551 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
552 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
553 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
554 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
555 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
556 if(pkt->pts >= pkt->dts)
557 pkt->pts = FFMAX(pkt->pts, max);
563 * Audio encoders may split the packets -- #frames in != #packets out.
564 * But there is no reordering, so we can limit the number of output packets
565 * by simply dropping them here.
566 * Counting encoded video frames needs to be done separately because of
567 * reordering, see do_video_out()
569 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
570 if (ost->frame_number >= ost->max_frames) {
578 AVPacket new_pkt = *pkt;
579 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
580 &new_pkt.data, &new_pkt.size,
581 pkt->data, pkt->size,
582 pkt->flags & AV_PKT_FLAG_KEY);
583 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
584 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
586 memcpy(t, new_pkt.data, new_pkt.size);
587 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
596 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
597 av_buffer_default_free, NULL, 0);
601 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
602 bsfc->filter->name, pkt->stream_index,
603 avctx->codec ? avctx->codec->name : "copy");
613 pkt->stream_index = ost->index;
616 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
617 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
618 av_get_media_type_string(ost->st->codec->codec_type),
619 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
620 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
625 ret = av_interleaved_write_frame(s, pkt);
627 print_error("av_interleaved_write_frame()", ret);
632 static void close_output_stream(OutputStream *ost)
634 OutputFile *of = output_files[ost->file_index];
638 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
639 of->recording_time = FFMIN(of->recording_time, end);
643 static int check_recording_time(OutputStream *ost)
645 OutputFile *of = output_files[ost->file_index];
647 if (of->recording_time != INT64_MAX &&
648 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
649 AV_TIME_BASE_Q) >= 0) {
650 close_output_stream(ost);
656 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
659 AVCodecContext *enc = ost->st->codec;
663 av_init_packet(&pkt);
667 if (!check_recording_time(ost))
670 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
671 frame->pts = ost->sync_opts;
672 ost->sync_opts = frame->pts + frame->nb_samples;
674 av_assert0(pkt.size || !pkt.data);
675 update_benchmark(NULL);
676 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
677 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
680 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
683 if (pkt.pts != AV_NOPTS_VALUE)
684 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
685 if (pkt.dts != AV_NOPTS_VALUE)
686 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
687 if (pkt.duration > 0)
688 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
691 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
692 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
693 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
694 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
697 audio_size += pkt.size;
698 write_frame(s, &pkt, ost);
700 av_free_packet(&pkt);
704 #if FF_API_DEINTERLACE
705 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
709 AVPicture picture_tmp;
712 dec = ist->st->codec;
714 /* deinterlace : must be done before any resize */
715 if (FF_API_DEINTERLACE && do_deinterlace) {
718 /* create temporary picture */
719 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
722 buf = av_malloc(size);
726 picture2 = &picture_tmp;
727 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
729 if (avpicture_deinterlace(picture2, picture,
730 dec->pix_fmt, dec->width, dec->height) < 0) {
731 /* if error, do not deinterlace */
732 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
741 if (picture != picture2)
742 *picture = *picture2;
747 static void do_subtitle_out(AVFormatContext *s,
752 int subtitle_out_max_size = 1024 * 1024;
753 int subtitle_out_size, nb, i;
758 if (sub->pts == AV_NOPTS_VALUE) {
759 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
765 enc = ost->st->codec;
768 subtitle_out = av_malloc(subtitle_out_max_size);
771 /* Note: DVB subtitle need one packet to draw them and one other
772 packet to clear them */
773 /* XXX: signal it in the codec context ? */
774 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
779 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
780 pts = sub->pts - output_files[ost->file_index]->start_time;
781 for (i = 0; i < nb; i++) {
782 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
783 if (!check_recording_time(ost))
787 // start_display_time is required to be 0
788 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
789 sub->end_display_time -= sub->start_display_time;
790 sub->start_display_time = 0;
793 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
794 subtitle_out_max_size, sub);
795 if (subtitle_out_size < 0) {
796 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
800 av_init_packet(&pkt);
801 pkt.data = subtitle_out;
802 pkt.size = subtitle_out_size;
803 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
804 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
805 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
806 /* XXX: the pts correction is handled here. Maybe handling
807 it in the codec would be better */
809 pkt.pts += 90 * sub->start_display_time;
811 pkt.pts += 90 * sub->end_display_time;
813 subtitle_size += pkt.size;
814 write_frame(s, &pkt, ost);
818 static void do_video_out(AVFormatContext *s,
822 int ret, format_video_sync;
824 AVCodecContext *enc = ost->st->codec;
826 double sync_ipts, delta;
829 InputStream *ist = NULL;
831 if (ost->source_index >= 0)
832 ist = input_streams[ost->source_index];
834 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
835 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
837 sync_ipts = in_picture->pts;
838 delta = sync_ipts - ost->sync_opts + duration;
840 /* by default, we output a single frame */
843 format_video_sync = video_sync_method;
844 if (format_video_sync == VSYNC_AUTO)
845 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
847 switch (format_video_sync) {
849 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
852 else if (delta > 1.1)
853 nb_frames = lrintf(delta);
858 else if (delta > 0.6)
859 ost->sync_opts = lrint(sync_ipts);
862 case VSYNC_PASSTHROUGH:
863 ost->sync_opts = lrint(sync_ipts);
869 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
870 if (nb_frames == 0) {
872 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
874 } else if (nb_frames > 1) {
875 if (nb_frames > dts_error_threshold * 30) {
876 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
880 nb_frames_dup += nb_frames - 1;
881 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
884 /* duplicates frame if needed */
885 for (i = 0; i < nb_frames; i++) {
886 av_init_packet(&pkt);
890 in_picture->pts = ost->sync_opts;
892 if (!check_recording_time(ost))
895 if (s->oformat->flags & AVFMT_RAWPICTURE &&
896 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
897 /* raw pictures are written as AVPicture structure to
898 avoid any copies. We support temporarily the older
900 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
901 enc->coded_frame->top_field_first = in_picture->top_field_first;
902 if (enc->coded_frame->interlaced_frame)
903 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
905 enc->field_order = AV_FIELD_PROGRESSIVE;
906 pkt.data = (uint8_t *)in_picture;
907 pkt.size = sizeof(AVPicture);
908 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
909 pkt.flags |= AV_PKT_FLAG_KEY;
911 video_size += pkt.size;
912 write_frame(s, &pkt, ost);
914 int got_packet, forced_keyframe = 0;
917 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
918 ost->top_field_first >= 0)
919 in_picture->top_field_first = !!ost->top_field_first;
921 if (in_picture->interlaced_frame) {
922 if (enc->codec->id == AV_CODEC_ID_MJPEG)
923 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
925 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
927 enc->field_order = AV_FIELD_PROGRESSIVE;
929 in_picture->quality = ost->st->codec->global_quality;
930 if (!enc->me_threshold)
931 in_picture->pict_type = 0;
933 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
934 in_picture->pts * av_q2d(enc->time_base) : NAN;
935 if (ost->forced_kf_index < ost->forced_kf_count &&
936 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
937 ost->forced_kf_index++;
939 } else if (ost->forced_keyframes_pexpr) {
941 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
942 res = av_expr_eval(ost->forced_keyframes_pexpr,
943 ost->forced_keyframes_expr_const_values, NULL);
944 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
945 ost->forced_keyframes_expr_const_values[FKF_N],
946 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
947 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
948 ost->forced_keyframes_expr_const_values[FKF_T],
949 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
953 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
954 ost->forced_keyframes_expr_const_values[FKF_N];
955 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
956 ost->forced_keyframes_expr_const_values[FKF_T];
957 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
960 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
962 if (forced_keyframe) {
963 in_picture->pict_type = AV_PICTURE_TYPE_I;
964 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
967 update_benchmark(NULL);
968 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
969 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
971 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
976 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
977 pkt.pts = ost->sync_opts;
979 if (pkt.pts != AV_NOPTS_VALUE)
980 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
981 if (pkt.dts != AV_NOPTS_VALUE)
982 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
985 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
986 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
987 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
988 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
991 frame_size = pkt.size;
992 video_size += pkt.size;
993 write_frame(s, &pkt, ost);
994 av_free_packet(&pkt);
996 /* if two pass, output log */
997 if (ost->logfile && enc->stats_out) {
998 fprintf(ost->logfile, "%s", enc->stats_out);
1004 * For video, number of frames in == number of packets out.
1005 * But there may be reordering, so we can't throw away frames on encoder
1006 * flush, we need to limit them here, before they go into encoder.
1008 ost->frame_number++;
1011 if (vstats_filename && frame_size)
1012 do_video_stats(ost, frame_size);
1015 static double psnr(double d)
1017 return -10.0 * log(d) / log(10.0);
1020 static void do_video_stats(OutputStream *ost, int frame_size)
1022 AVCodecContext *enc;
1024 double ti1, bitrate, avg_bitrate;
1026 /* this is executed just the first time do_video_stats is called */
1028 vstats_file = fopen(vstats_filename, "w");
1035 enc = ost->st->codec;
1036 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1037 frame_number = ost->st->nb_frames;
1038 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1039 if (enc->flags&CODEC_FLAG_PSNR)
1040 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1042 fprintf(vstats_file,"f_size= %6d ", frame_size);
1043 /* compute pts value */
1044 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1048 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1049 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1050 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1051 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1052 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1057 * Get and encode new output from any of the filtergraphs, without causing
1060 * @return 0 for success, <0 for severe errors
1062 static int reap_filters(void)
1064 AVFrame *filtered_frame = NULL;
1068 /* Reap all buffers present in the buffer sinks */
1069 for (i = 0; i < nb_output_streams; i++) {
1070 OutputStream *ost = output_streams[i];
1071 OutputFile *of = output_files[ost->file_index];
1077 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1078 return AVERROR(ENOMEM);
1080 avcodec_get_frame_defaults(ost->filtered_frame);
1081 filtered_frame = ost->filtered_frame;
1084 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1085 AV_BUFFERSINK_FLAG_NO_REQUEST);
1087 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1089 av_strerror(ret, buf, sizeof(buf));
1090 av_log(NULL, AV_LOG_WARNING,
1091 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1095 frame_pts = AV_NOPTS_VALUE;
1096 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1097 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1098 ost->filter->filter->inputs[0]->time_base,
1099 ost->st->codec->time_base) -
1100 av_rescale_q(of->start_time,
1102 ost->st->codec->time_base);
1104 if (of->start_time && filtered_frame->pts < 0) {
1105 av_frame_unref(filtered_frame);
1109 //if (ost->source_index >= 0)
1110 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1113 switch (ost->filter->filter->inputs[0]->type) {
1114 case AVMEDIA_TYPE_VIDEO:
1115 filtered_frame->pts = frame_pts;
1116 if (!ost->frame_aspect_ratio)
1117 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1119 do_video_out(of->ctx, ost, filtered_frame);
1121 case AVMEDIA_TYPE_AUDIO:
1122 filtered_frame->pts = frame_pts;
1123 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1124 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1125 av_log(NULL, AV_LOG_ERROR,
1126 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1129 do_audio_out(of->ctx, ost, filtered_frame);
1132 // TODO support subtitle filters
1136 av_frame_unref(filtered_frame);
1143 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1146 AVBPrint buf_script;
1148 AVFormatContext *oc;
1150 AVCodecContext *enc;
1151 int frame_number, vid, i;
1153 int64_t pts = INT64_MIN;
1154 static int64_t last_time = -1;
1155 static int qp_histogram[52];
1156 int hours, mins, secs, us;
1158 if (!print_stats && !is_last_report && !progress_avio)
1161 if (!is_last_report) {
1162 if (last_time == -1) {
1163 last_time = cur_time;
1166 if ((cur_time - last_time) < 500000)
1168 last_time = cur_time;
1172 oc = output_files[0]->ctx;
1174 total_size = avio_size(oc->pb);
1175 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1176 total_size = avio_tell(oc->pb);
1180 av_bprint_init(&buf_script, 0, 1);
1181 for (i = 0; i < nb_output_streams; i++) {
1183 ost = output_streams[i];
1184 enc = ost->st->codec;
1185 if (!ost->stream_copy && enc->coded_frame)
1186 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1187 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1188 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1189 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1190 ost->file_index, ost->index, q);
1192 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1193 float fps, t = (cur_time-timer_start) / 1000000.0;
1195 frame_number = ost->frame_number;
1196 fps = t > 1 ? frame_number / t : 0;
1197 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1198 frame_number, fps < 9.95, fps, q);
1199 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1200 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1201 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1202 ost->file_index, ost->index, q);
1204 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1208 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1210 for (j = 0; j < 32; j++)
1211 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1213 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1215 double error, error_sum = 0;
1216 double scale, scale_sum = 0;
1218 char type[3] = { 'Y','U','V' };
1219 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1220 for (j = 0; j < 3; j++) {
1221 if (is_last_report) {
1222 error = enc->error[j];
1223 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1225 error = enc->coded_frame->error[j];
1226 scale = enc->width * enc->height * 255.0 * 255.0;
1232 p = psnr(error / scale);
1233 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1234 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1235 ost->file_index, ost->index, type[j] | 32, p);
1237 p = psnr(error_sum / scale_sum);
1238 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1239 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1240 ost->file_index, ost->index, p);
1244 /* compute min output value */
1245 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1246 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1247 ost->st->time_base, AV_TIME_BASE_Q));
1250 secs = pts / AV_TIME_BASE;
1251 us = pts % AV_TIME_BASE;
1257 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1259 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1261 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1262 "size=%8.0fkB time=", total_size / 1024.0);
1263 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1264 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1265 (100 * us) / AV_TIME_BASE);
1266 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1268 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1269 "bitrate=%6.1fkbits/s", bitrate);
1270 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1271 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1272 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1273 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1274 hours, mins, secs, us);
1276 if (nb_frames_dup || nb_frames_drop)
1277 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1278 nb_frames_dup, nb_frames_drop);
1279 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1280 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1282 if (print_stats || is_last_report) {
1283 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1284 fprintf(stderr, "%s \r", buf);
1286 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1291 if (progress_avio) {
1292 av_bprintf(&buf_script, "progress=%s\n",
1293 is_last_report ? "end" : "continue");
1294 avio_write(progress_avio, buf_script.str,
1295 FFMIN(buf_script.len, buf_script.size - 1));
1296 avio_flush(progress_avio);
1297 av_bprint_finalize(&buf_script, NULL);
1298 if (is_last_report) {
1299 avio_close(progress_avio);
1300 progress_avio = NULL;
1304 if (is_last_report) {
1305 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1306 av_log(NULL, AV_LOG_INFO, "\n");
1307 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1308 video_size / 1024.0,
1309 audio_size / 1024.0,
1310 subtitle_size / 1024.0,
1311 extra_size / 1024.0,
1312 100.0 * (total_size - raw) / raw
1314 if(video_size + audio_size + subtitle_size + extra_size == 0){
1315 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1320 static void flush_encoders(void)
1324 for (i = 0; i < nb_output_streams; i++) {
1325 OutputStream *ost = output_streams[i];
1326 AVCodecContext *enc = ost->st->codec;
1327 AVFormatContext *os = output_files[ost->file_index]->ctx;
1328 int stop_encoding = 0;
1330 if (!ost->encoding_needed)
1333 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1335 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1339 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1343 switch (ost->st->codec->codec_type) {
1344 case AVMEDIA_TYPE_AUDIO:
1345 encode = avcodec_encode_audio2;
1349 case AVMEDIA_TYPE_VIDEO:
1350 encode = avcodec_encode_video2;
1361 av_init_packet(&pkt);
1365 update_benchmark(NULL);
1366 ret = encode(enc, &pkt, NULL, &got_packet);
1367 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1369 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1373 if (ost->logfile && enc->stats_out) {
1374 fprintf(ost->logfile, "%s", enc->stats_out);
1380 if (pkt.pts != AV_NOPTS_VALUE)
1381 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1382 if (pkt.dts != AV_NOPTS_VALUE)
1383 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1384 if (pkt.duration > 0)
1385 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1386 write_frame(os, &pkt, ost);
1387 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1388 do_video_stats(ost, pkt.size);
1399 * Check whether a packet from ist should be written into ost at this time
1401 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1403 OutputFile *of = output_files[ost->file_index];
1404 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1406 if (ost->source_index != ist_index)
1409 if (of->start_time && ist->pts < of->start_time)
1415 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1417 OutputFile *of = output_files[ost->file_index];
1418 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1422 av_init_packet(&opkt);
1424 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1425 !ost->copy_initial_nonkeyframes)
1428 if (!ost->frame_number && ist->pts < of->start_time &&
1429 !ost->copy_prior_start)
1432 if (of->recording_time != INT64_MAX &&
1433 ist->pts >= of->recording_time + of->start_time) {
1434 close_output_stream(ost);
1438 /* force the input stream PTS */
1439 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1440 audio_size += pkt->size;
1441 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1442 video_size += pkt->size;
1444 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1445 subtitle_size += pkt->size;
1448 if (pkt->pts != AV_NOPTS_VALUE)
1449 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1451 opkt.pts = AV_NOPTS_VALUE;
1453 if (pkt->dts == AV_NOPTS_VALUE)
1454 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1456 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1457 opkt.dts -= ost_tb_start_time;
1459 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1460 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1462 duration = ist->st->codec->frame_size;
1463 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1464 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1465 ost->st->time_base) - ost_tb_start_time;
1468 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1469 opkt.flags = pkt->flags;
1471 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1472 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1473 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1474 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1475 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1477 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1478 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1483 opkt.data = pkt->data;
1484 opkt.size = pkt->size;
1487 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1488 /* store AVPicture in AVPacket, as expected by the output format */
1489 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1490 opkt.data = (uint8_t *)&pict;
1491 opkt.size = sizeof(AVPicture);
1492 opkt.flags |= AV_PKT_FLAG_KEY;
1495 write_frame(of->ctx, &opkt, ost);
1496 ost->st->codec->frame_number++;
1499 static void rate_emu_sleep(InputStream *ist)
1501 if (input_files[ist->file_index]->rate_emu) {
1502 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1503 int64_t now = av_gettime() - ist->start;
1505 av_usleep(pts - now);
1509 int guess_input_channel_layout(InputStream *ist)
1511 AVCodecContext *dec = ist->st->codec;
1513 if (!dec->channel_layout) {
1514 char layout_name[256];
1516 if (dec->channels > ist->guess_layout_max)
1518 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1519 if (!dec->channel_layout)
1521 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1522 dec->channels, dec->channel_layout);
1523 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1524 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1529 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1531 AVFrame *decoded_frame, *f;
1532 AVCodecContext *avctx = ist->st->codec;
1533 int i, ret, err = 0, resample_changed;
1534 AVRational decoded_frame_tb;
1536 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1537 return AVERROR(ENOMEM);
1538 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1539 return AVERROR(ENOMEM);
1540 decoded_frame = ist->decoded_frame;
1542 update_benchmark(NULL);
1543 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1544 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1546 if (ret >= 0 && avctx->sample_rate <= 0) {
1547 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1548 ret = AVERROR_INVALIDDATA;
1551 if (!*got_output || ret < 0) {
1553 for (i = 0; i < ist->nb_filters; i++)
1555 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1557 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1564 /* increment next_dts to use for the case where the input stream does not
1565 have timestamps or there are multiple frames in the packet */
1566 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1568 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1572 rate_emu_sleep(ist);
1574 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1575 ist->resample_channels != avctx->channels ||
1576 ist->resample_channel_layout != decoded_frame->channel_layout ||
1577 ist->resample_sample_rate != decoded_frame->sample_rate;
1578 if (resample_changed) {
1579 char layout1[64], layout2[64];
1581 if (!guess_input_channel_layout(ist)) {
1582 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1583 "layout for Input Stream #%d.%d\n", ist->file_index,
1587 decoded_frame->channel_layout = avctx->channel_layout;
1589 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1590 ist->resample_channel_layout);
1591 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1592 decoded_frame->channel_layout);
1594 av_log(NULL, AV_LOG_INFO,
1595 "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",
1596 ist->file_index, ist->st->index,
1597 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1598 ist->resample_channels, layout1,
1599 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1600 avctx->channels, layout2);
1602 ist->resample_sample_fmt = decoded_frame->format;
1603 ist->resample_sample_rate = decoded_frame->sample_rate;
1604 ist->resample_channel_layout = decoded_frame->channel_layout;
1605 ist->resample_channels = avctx->channels;
1607 for (i = 0; i < nb_filtergraphs; i++)
1608 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1609 FilterGraph *fg = filtergraphs[i];
1611 if (configure_filtergraph(fg) < 0) {
1612 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1615 for (j = 0; j < fg->nb_outputs; j++) {
1616 OutputStream *ost = fg->outputs[j]->ost;
1617 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1618 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1619 av_buffersink_set_frame_size(ost->filter->filter,
1620 ost->st->codec->frame_size);
1625 /* if the decoder provides a pts, use it instead of the last packet pts.
1626 the decoder could be delaying output by a packet or more. */
1627 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1628 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1629 decoded_frame_tb = avctx->time_base;
1630 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1631 decoded_frame->pts = decoded_frame->pkt_pts;
1632 pkt->pts = AV_NOPTS_VALUE;
1633 decoded_frame_tb = ist->st->time_base;
1634 } else if (pkt->pts != AV_NOPTS_VALUE) {
1635 decoded_frame->pts = pkt->pts;
1636 pkt->pts = AV_NOPTS_VALUE;
1637 decoded_frame_tb = ist->st->time_base;
1639 decoded_frame->pts = ist->dts;
1640 decoded_frame_tb = AV_TIME_BASE_Q;
1642 if (decoded_frame->pts != AV_NOPTS_VALUE)
1643 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1644 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1645 (AVRational){1, ist->st->codec->sample_rate});
1646 for (i = 0; i < ist->nb_filters; i++) {
1647 if (i < ist->nb_filters - 1) {
1648 f = ist->filter_frame;
1649 err = av_frame_ref(f, decoded_frame);
1654 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1655 AV_BUFFERSRC_FLAG_PUSH);
1659 decoded_frame->pts = AV_NOPTS_VALUE;
1661 av_frame_unref(ist->filter_frame);
1662 av_frame_unref(decoded_frame);
1663 return err < 0 ? err : ret;
1666 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1668 AVFrame *decoded_frame, *f;
1669 void *buffer_to_free = NULL;
1670 int i, ret = 0, err = 0, resample_changed;
1671 int64_t best_effort_timestamp;
1672 AVRational *frame_sample_aspect;
1674 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1675 return AVERROR(ENOMEM);
1676 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1677 return AVERROR(ENOMEM);
1678 decoded_frame = ist->decoded_frame;
1679 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1681 update_benchmark(NULL);
1682 ret = avcodec_decode_video2(ist->st->codec,
1683 decoded_frame, got_output, pkt);
1684 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1685 if (!*got_output || ret < 0) {
1687 for (i = 0; i < ist->nb_filters; i++)
1689 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1691 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1697 if(ist->top_field_first>=0)
1698 decoded_frame->top_field_first = ist->top_field_first;
1700 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1701 if(best_effort_timestamp != AV_NOPTS_VALUE)
1702 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1705 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1706 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1707 ist->st->index, av_ts2str(decoded_frame->pts),
1708 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1709 best_effort_timestamp,
1710 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1711 decoded_frame->key_frame, decoded_frame->pict_type);
1715 #if FF_API_DEINTERLACE
1716 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1719 rate_emu_sleep(ist);
1721 if (ist->st->sample_aspect_ratio.num)
1722 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1724 resample_changed = ist->resample_width != decoded_frame->width ||
1725 ist->resample_height != decoded_frame->height ||
1726 ist->resample_pix_fmt != decoded_frame->format;
1727 if (resample_changed) {
1728 av_log(NULL, AV_LOG_INFO,
1729 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1730 ist->file_index, ist->st->index,
1731 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1732 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1734 ist->resample_width = decoded_frame->width;
1735 ist->resample_height = decoded_frame->height;
1736 ist->resample_pix_fmt = decoded_frame->format;
1738 for (i = 0; i < nb_filtergraphs; i++) {
1739 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1740 configure_filtergraph(filtergraphs[i]) < 0) {
1741 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1747 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1748 for (i = 0; i < ist->nb_filters; i++) {
1749 if (!frame_sample_aspect->num)
1750 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1752 if (i < ist->nb_filters - 1) {
1753 f = ist->filter_frame;
1754 err = av_frame_ref(f, decoded_frame);
1759 if(av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1760 AV_BUFFERSRC_FLAG_PUSH)<0) {
1761 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1767 av_frame_unref(ist->filter_frame);
1768 av_frame_unref(decoded_frame);
1769 av_free(buffer_to_free);
1770 return err < 0 ? err : ret;
1773 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1775 AVSubtitle subtitle;
1776 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1777 &subtitle, got_output, pkt);
1778 if (ret < 0 || !*got_output) {
1780 sub2video_flush(ist);
1784 if (ist->fix_sub_duration) {
1785 if (ist->prev_sub.got_output) {
1786 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1787 1000, AV_TIME_BASE);
1788 if (end < ist->prev_sub.subtitle.end_display_time) {
1789 av_log(ist->st->codec, AV_LOG_DEBUG,
1790 "Subtitle duration reduced from %d to %d\n",
1791 ist->prev_sub.subtitle.end_display_time, end);
1792 ist->prev_sub.subtitle.end_display_time = end;
1795 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1796 FFSWAP(int, ret, ist->prev_sub.ret);
1797 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1800 sub2video_update(ist, &subtitle);
1802 if (!*got_output || !subtitle.num_rects)
1805 rate_emu_sleep(ist);
1807 for (i = 0; i < nb_output_streams; i++) {
1808 OutputStream *ost = output_streams[i];
1810 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1813 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1816 avsubtitle_free(&subtitle);
1820 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1821 static int output_packet(InputStream *ist, const AVPacket *pkt)
1827 if (!ist->saw_first_ts) {
1828 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;
1830 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1831 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1832 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1834 ist->saw_first_ts = 1;
1837 if (ist->next_dts == AV_NOPTS_VALUE)
1838 ist->next_dts = ist->dts;
1839 if (ist->next_pts == AV_NOPTS_VALUE)
1840 ist->next_pts = ist->pts;
1844 av_init_packet(&avpkt);
1852 if (pkt->dts != AV_NOPTS_VALUE) {
1853 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1854 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1855 ist->next_pts = ist->pts = ist->dts;
1858 // while we have more to decode or while the decoder did output something on EOF
1859 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1863 ist->pts = ist->next_pts;
1864 ist->dts = ist->next_dts;
1866 if (avpkt.size && avpkt.size != pkt->size) {
1867 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1868 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1869 ist->showed_multi_packet_warning = 1;
1872 switch (ist->st->codec->codec_type) {
1873 case AVMEDIA_TYPE_AUDIO:
1874 ret = decode_audio (ist, &avpkt, &got_output);
1876 case AVMEDIA_TYPE_VIDEO:
1877 ret = decode_video (ist, &avpkt, &got_output);
1878 if (avpkt.duration) {
1879 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1880 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1881 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1882 duration = ((int64_t)AV_TIME_BASE *
1883 ist->st->codec->time_base.num * ticks) /
1884 ist->st->codec->time_base.den;
1888 if(ist->dts != AV_NOPTS_VALUE && duration) {
1889 ist->next_dts += duration;
1891 ist->next_dts = AV_NOPTS_VALUE;
1894 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1896 case AVMEDIA_TYPE_SUBTITLE:
1897 ret = transcode_subtitles(ist, &avpkt, &got_output);
1907 avpkt.pts= AV_NOPTS_VALUE;
1909 // touch data and size only if not EOF
1911 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1921 /* handle stream copy */
1922 if (!ist->decoding_needed) {
1923 rate_emu_sleep(ist);
1924 ist->dts = ist->next_dts;
1925 switch (ist->st->codec->codec_type) {
1926 case AVMEDIA_TYPE_AUDIO:
1927 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1928 ist->st->codec->sample_rate;
1930 case AVMEDIA_TYPE_VIDEO:
1931 if (pkt->duration) {
1932 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1933 } else if(ist->st->codec->time_base.num != 0) {
1934 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1935 ist->next_dts += ((int64_t)AV_TIME_BASE *
1936 ist->st->codec->time_base.num * ticks) /
1937 ist->st->codec->time_base.den;
1941 ist->pts = ist->dts;
1942 ist->next_pts = ist->next_dts;
1944 for (i = 0; pkt && i < nb_output_streams; i++) {
1945 OutputStream *ost = output_streams[i];
1947 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1950 do_streamcopy(ist, ost, pkt);
1956 static void print_sdp(void)
1960 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1964 for (i = 0; i < nb_output_files; i++)
1965 avc[i] = output_files[i]->ctx;
1967 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1968 printf("SDP:\n%s\n", sdp);
1973 static int init_input_stream(int ist_index, char *error, int error_len)
1976 InputStream *ist = input_streams[ist_index];
1978 if (ist->decoding_needed) {
1979 AVCodec *codec = ist->dec;
1981 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1982 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1983 return AVERROR(EINVAL);
1986 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1988 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1989 av_dict_set(&ist->opts, "threads", "auto", 0);
1990 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1991 if (ret == AVERROR_EXPERIMENTAL)
1992 abort_codec_experimental(codec, 0);
1993 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1994 ist->file_index, ist->st->index);
1997 assert_avoptions(ist->opts);
2000 ist->next_pts = AV_NOPTS_VALUE;
2001 ist->next_dts = AV_NOPTS_VALUE;
2007 static InputStream *get_input_stream(OutputStream *ost)
2009 if (ost->source_index >= 0)
2010 return input_streams[ost->source_index];
2014 static int compare_int64(const void *a, const void *b)
2016 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2017 return va < vb ? -1 : va > vb ? +1 : 0;
2020 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2021 AVCodecContext *avctx)
2024 int n = 1, i, size, index = 0;
2027 for (p = kf; *p; p++)
2031 pts = av_malloc(sizeof(*pts) * size);
2033 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2038 for (i = 0; i < n; i++) {
2039 char *next = strchr(p, ',');
2044 if (!memcmp(p, "chapters", 8)) {
2046 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2049 if (avf->nb_chapters > INT_MAX - size ||
2050 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2052 av_log(NULL, AV_LOG_FATAL,
2053 "Could not allocate forced key frames array.\n");
2056 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2057 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2059 for (j = 0; j < avf->nb_chapters; j++) {
2060 AVChapter *c = avf->chapters[j];
2061 av_assert1(index < size);
2062 pts[index++] = av_rescale_q(c->start, c->time_base,
2063 avctx->time_base) + t;
2068 t = parse_time_or_die("force_key_frames", p, 1);
2069 av_assert1(index < size);
2070 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2077 av_assert0(index == size);
2078 qsort(pts, size, sizeof(*pts), compare_int64);
2079 ost->forced_kf_count = size;
2080 ost->forced_kf_pts = pts;
2083 static void report_new_stream(int input_index, AVPacket *pkt)
2085 InputFile *file = input_files[input_index];
2086 AVStream *st = file->ctx->streams[pkt->stream_index];
2088 if (pkt->stream_index < file->nb_streams_warn)
2090 av_log(file->ctx, AV_LOG_WARNING,
2091 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2092 av_get_media_type_string(st->codec->codec_type),
2093 input_index, pkt->stream_index,
2094 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2095 file->nb_streams_warn = pkt->stream_index + 1;
2098 static int transcode_init(void)
2100 int ret = 0, i, j, k;
2101 AVFormatContext *oc;
2102 AVCodecContext *codec;
2108 /* init framerate emulation */
2109 for (i = 0; i < nb_input_files; i++) {
2110 InputFile *ifile = input_files[i];
2111 if (ifile->rate_emu)
2112 for (j = 0; j < ifile->nb_streams; j++)
2113 input_streams[j + ifile->ist_index]->start = av_gettime();
2116 /* output stream init */
2117 for (i = 0; i < nb_output_files; i++) {
2118 oc = output_files[i]->ctx;
2119 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2120 av_dump_format(oc, i, oc->filename, 1);
2121 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2122 return AVERROR(EINVAL);
2126 /* init complex filtergraphs */
2127 for (i = 0; i < nb_filtergraphs; i++)
2128 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2131 /* for each output stream, we compute the right encoding parameters */
2132 for (i = 0; i < nb_output_streams; i++) {
2133 AVCodecContext *icodec = NULL;
2134 ost = output_streams[i];
2135 oc = output_files[ost->file_index]->ctx;
2136 ist = get_input_stream(ost);
2138 if (ost->attachment_filename)
2141 codec = ost->st->codec;
2144 icodec = ist->st->codec;
2146 ost->st->disposition = ist->st->disposition;
2147 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2148 codec->chroma_sample_location = icodec->chroma_sample_location;
2151 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(ost->frame_rate.num)
2230 codec->time_base = av_inv_q(ost->frame_rate);
2232 av_reduce(&codec->time_base.num, &codec->time_base.den,
2233 codec->time_base.num, codec->time_base.den, INT_MAX);
2235 switch (codec->codec_type) {
2236 case AVMEDIA_TYPE_AUDIO:
2237 if (audio_volume != 256) {
2238 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2241 codec->channel_layout = icodec->channel_layout;
2242 codec->sample_rate = icodec->sample_rate;
2243 codec->channels = icodec->channels;
2244 codec->frame_size = icodec->frame_size;
2245 codec->audio_service_type = icodec->audio_service_type;
2246 codec->block_align = icodec->block_align;
2247 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2248 codec->block_align= 0;
2249 if(codec->codec_id == AV_CODEC_ID_AC3)
2250 codec->block_align= 0;
2252 case AVMEDIA_TYPE_VIDEO:
2253 codec->pix_fmt = icodec->pix_fmt;
2254 codec->width = icodec->width;
2255 codec->height = icodec->height;
2256 codec->has_b_frames = icodec->has_b_frames;
2257 if (!codec->sample_aspect_ratio.num) {
2258 codec->sample_aspect_ratio =
2259 ost->st->sample_aspect_ratio =
2260 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2261 ist->st->codec->sample_aspect_ratio.num ?
2262 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2264 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2266 case AVMEDIA_TYPE_SUBTITLE:
2267 codec->width = icodec->width;
2268 codec->height = icodec->height;
2270 case AVMEDIA_TYPE_DATA:
2271 case AVMEDIA_TYPE_ATTACHMENT:
2278 ost->enc = avcodec_find_encoder(codec->codec_id);
2280 /* should only happen when a default codec is not present. */
2281 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2282 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2283 ret = AVERROR(EINVAL);
2288 ist->decoding_needed++;
2289 ost->encoding_needed = 1;
2292 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2293 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2295 fg = init_simple_filtergraph(ist, ost);
2296 if (configure_filtergraph(fg)) {
2297 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2302 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2303 if (ost->filter && !ost->frame_rate.num)
2304 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2305 if (ist && !ost->frame_rate.num)
2306 ost->frame_rate = ist->framerate;
2307 if (ist && !ost->frame_rate.num)
2308 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2309 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2310 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2311 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2312 ost->frame_rate = ost->enc->supported_framerates[idx];
2316 switch (codec->codec_type) {
2317 case AVMEDIA_TYPE_AUDIO:
2318 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2319 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2320 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2321 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2322 codec->time_base = (AVRational){ 1, codec->sample_rate };
2324 case AVMEDIA_TYPE_VIDEO:
2325 codec->time_base = av_inv_q(ost->frame_rate);
2326 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2327 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2328 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2329 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2330 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2331 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2333 for (j = 0; j < ost->forced_kf_count; j++)
2334 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2338 codec->width = ost->filter->filter->inputs[0]->w;
2339 codec->height = ost->filter->filter->inputs[0]->h;
2340 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2341 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2342 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2343 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2344 if (!strncmp(ost->enc->name, "libx264", 7) &&
2345 codec->pix_fmt == AV_PIX_FMT_NONE &&
2346 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2347 av_log(NULL, AV_LOG_INFO,
2348 "No pixel format specified, %s for H.264 encoding chosen.\n"
2349 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2350 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2351 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2354 codec->width != icodec->width ||
2355 codec->height != icodec->height ||
2356 codec->pix_fmt != icodec->pix_fmt) {
2357 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2360 if (ost->forced_keyframes) {
2361 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2362 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2363 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2365 av_log(NULL, AV_LOG_ERROR,
2366 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2369 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2370 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2371 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2372 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2374 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2378 case AVMEDIA_TYPE_SUBTITLE:
2379 codec->time_base = (AVRational){1, 1000};
2380 if (!codec->width) {
2381 codec->width = input_streams[ost->source_index]->st->codec->width;
2382 codec->height = input_streams[ost->source_index]->st->codec->height;
2390 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2391 char logfilename[1024];
2394 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2395 ost->logfile_prefix ? ost->logfile_prefix :
2396 DEFAULT_PASS_LOGFILENAME_PREFIX,
2398 if (!strcmp(ost->enc->name, "libx264")) {
2399 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2401 if (codec->flags & CODEC_FLAG_PASS2) {
2403 size_t logbuffer_size;
2404 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2405 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2409 codec->stats_in = logbuffer;
2411 if (codec->flags & CODEC_FLAG_PASS1) {
2412 f = fopen(logfilename, "wb");
2414 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2415 logfilename, strerror(errno));
2425 /* open each encoder */
2426 for (i = 0; i < nb_output_streams; i++) {
2427 ost = output_streams[i];
2428 if (ost->encoding_needed) {
2429 AVCodec *codec = ost->enc;
2430 AVCodecContext *dec = NULL;
2432 if ((ist = get_input_stream(ost)))
2433 dec = ist->st->codec;
2434 if (dec && dec->subtitle_header) {
2435 /* ASS code assumes this buffer is null terminated so add extra byte. */
2436 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2437 if (!ost->st->codec->subtitle_header) {
2438 ret = AVERROR(ENOMEM);
2441 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2442 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2444 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2445 av_dict_set(&ost->opts, "threads", "auto", 0);
2446 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2447 if (ret == AVERROR_EXPERIMENTAL)
2448 abort_codec_experimental(codec, 1);
2449 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2450 ost->file_index, ost->index);
2453 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2454 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2455 av_buffersink_set_frame_size(ost->filter->filter,
2456 ost->st->codec->frame_size);
2457 assert_avoptions(ost->opts);
2458 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2459 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2460 " It takes bits/s as argument, not kbits/s\n");
2461 extra_size += ost->st->codec->extradata_size;
2463 if (ost->st->codec->me_threshold)
2464 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2466 av_opt_set_dict(ost->st->codec, &ost->opts);
2470 /* init input streams */
2471 for (i = 0; i < nb_input_streams; i++)
2472 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2473 for (i = 0; i < nb_output_streams; i++) {
2474 ost = output_streams[i];
2475 avcodec_close(ost->st->codec);
2480 /* discard unused programs */
2481 for (i = 0; i < nb_input_files; i++) {
2482 InputFile *ifile = input_files[i];
2483 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2484 AVProgram *p = ifile->ctx->programs[j];
2485 int discard = AVDISCARD_ALL;
2487 for (k = 0; k < p->nb_stream_indexes; k++)
2488 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2489 discard = AVDISCARD_DEFAULT;
2492 p->discard = discard;
2496 /* open files and write file headers */
2497 for (i = 0; i < nb_output_files; i++) {
2498 oc = output_files[i]->ctx;
2499 oc->interrupt_callback = int_cb;
2500 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2502 const char *errbuf_ptr = errbuf;
2503 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2504 errbuf_ptr = strerror(AVUNERROR(ret));
2505 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2506 ret = AVERROR(EINVAL);
2509 // assert_avoptions(output_files[i]->opts);
2510 if (strcmp(oc->oformat->name, "rtp")) {
2516 /* dump the file output parameters - cannot be done before in case
2518 for (i = 0; i < nb_output_files; i++) {
2519 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2522 /* dump the stream mapping */
2523 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2524 for (i = 0; i < nb_input_streams; i++) {
2525 ist = input_streams[i];
2527 for (j = 0; j < ist->nb_filters; j++) {
2528 if (ist->filters[j]->graph->graph_desc) {
2529 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2530 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2531 ist->filters[j]->name);
2532 if (nb_filtergraphs > 1)
2533 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2534 av_log(NULL, AV_LOG_INFO, "\n");
2539 for (i = 0; i < nb_output_streams; i++) {
2540 ost = output_streams[i];
2542 if (ost->attachment_filename) {
2543 /* an attached file */
2544 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2545 ost->attachment_filename, ost->file_index, ost->index);
2549 if (ost->filter && ost->filter->graph->graph_desc) {
2550 /* output from a complex graph */
2551 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2552 if (nb_filtergraphs > 1)
2553 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2555 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2556 ost->index, ost->enc ? ost->enc->name : "?");
2560 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2561 input_streams[ost->source_index]->file_index,
2562 input_streams[ost->source_index]->st->index,
2565 if (ost->sync_ist != input_streams[ost->source_index])
2566 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2567 ost->sync_ist->file_index,
2568 ost->sync_ist->st->index);
2569 if (ost->stream_copy)
2570 av_log(NULL, AV_LOG_INFO, " (copy)");
2572 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2573 input_streams[ost->source_index]->dec->name : "?",
2574 ost->enc ? ost->enc->name : "?");
2575 av_log(NULL, AV_LOG_INFO, "\n");
2579 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2590 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2591 static int need_output(void)
2595 for (i = 0; i < nb_output_streams; i++) {
2596 OutputStream *ost = output_streams[i];
2597 OutputFile *of = output_files[ost->file_index];
2598 AVFormatContext *os = output_files[ost->file_index]->ctx;
2600 if (ost->finished ||
2601 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2603 if (ost->frame_number >= ost->max_frames) {
2605 for (j = 0; j < of->ctx->nb_streams; j++)
2606 close_output_stream(output_streams[of->ost_index + j]);
2617 * Select the output stream to process.
2619 * @return selected output stream, or NULL if none available
2621 static OutputStream *choose_output(void)
2624 int64_t opts_min = INT64_MAX;
2625 OutputStream *ost_min = NULL;
2627 for (i = 0; i < nb_output_streams; i++) {
2628 OutputStream *ost = output_streams[i];
2629 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2631 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2639 static int check_keyboard_interaction(int64_t cur_time)
2642 static int64_t last_time;
2643 if (received_nb_signals)
2644 return AVERROR_EXIT;
2645 /* read_key() returns 0 on EOF */
2646 if(cur_time - last_time >= 100000 && !run_as_daemon){
2648 last_time = cur_time;
2652 return AVERROR_EXIT;
2653 if (key == '+') av_log_set_level(av_log_get_level()+10);
2654 if (key == '-') av_log_set_level(av_log_get_level()-10);
2655 if (key == 's') qp_hist ^= 1;
2658 do_hex_dump = do_pkt_dump = 0;
2659 } else if(do_pkt_dump){
2663 av_log_set_level(AV_LOG_DEBUG);
2665 if (key == 'c' || key == 'C'){
2666 char buf[4096], target[64], command[256], arg[256] = {0};
2669 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2671 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2676 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2677 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2678 target, time, command, arg);
2679 for (i = 0; i < nb_filtergraphs; i++) {
2680 FilterGraph *fg = filtergraphs[i];
2683 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2684 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2685 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2687 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2692 av_log(NULL, AV_LOG_ERROR,
2693 "Parse error, at least 3 arguments were expected, "
2694 "only %d given in string '%s'\n", n, buf);
2697 if (key == 'd' || key == 'D'){
2700 debug = input_streams[0]->st->codec->debug<<1;
2701 if(!debug) debug = 1;
2702 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2705 if(scanf("%d", &debug)!=1)
2706 fprintf(stderr,"error parsing debug value\n");
2707 for(i=0;i<nb_input_streams;i++) {
2708 input_streams[i]->st->codec->debug = debug;
2710 for(i=0;i<nb_output_streams;i++) {
2711 OutputStream *ost = output_streams[i];
2712 ost->st->codec->debug = debug;
2714 if(debug) av_log_set_level(AV_LOG_DEBUG);
2715 fprintf(stderr,"debug=%d\n", debug);
2718 fprintf(stderr, "key function\n"
2719 "? show this help\n"
2720 "+ increase verbosity\n"
2721 "- decrease verbosity\n"
2722 "c Send command to filtergraph\n"
2723 "D cycle through available debug modes\n"
2724 "h dump packets/hex press to cycle through the 3 states\n"
2726 "s Show QP histogram\n"
2733 static void *input_thread(void *arg)
2738 while (!transcoding_finished && ret >= 0) {
2740 ret = av_read_frame(f->ctx, &pkt);
2742 if (ret == AVERROR(EAGAIN)) {
2749 pthread_mutex_lock(&f->fifo_lock);
2750 while (!av_fifo_space(f->fifo))
2751 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2753 av_dup_packet(&pkt);
2754 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2756 pthread_mutex_unlock(&f->fifo_lock);
2763 static void free_input_threads(void)
2767 if (nb_input_files == 1)
2770 transcoding_finished = 1;
2772 for (i = 0; i < nb_input_files; i++) {
2773 InputFile *f = input_files[i];
2776 if (!f->fifo || f->joined)
2779 pthread_mutex_lock(&f->fifo_lock);
2780 while (av_fifo_size(f->fifo)) {
2781 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2782 av_free_packet(&pkt);
2784 pthread_cond_signal(&f->fifo_cond);
2785 pthread_mutex_unlock(&f->fifo_lock);
2787 pthread_join(f->thread, NULL);
2790 while (av_fifo_size(f->fifo)) {
2791 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2792 av_free_packet(&pkt);
2794 av_fifo_free(f->fifo);
2798 static int init_input_threads(void)
2802 if (nb_input_files == 1)
2805 for (i = 0; i < nb_input_files; i++) {
2806 InputFile *f = input_files[i];
2808 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2809 return AVERROR(ENOMEM);
2811 pthread_mutex_init(&f->fifo_lock, NULL);
2812 pthread_cond_init (&f->fifo_cond, NULL);
2814 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2815 return AVERROR(ret);
2820 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2824 pthread_mutex_lock(&f->fifo_lock);
2826 if (av_fifo_size(f->fifo)) {
2827 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2828 pthread_cond_signal(&f->fifo_cond);
2833 ret = AVERROR(EAGAIN);
2836 pthread_mutex_unlock(&f->fifo_lock);
2842 static int get_input_packet(InputFile *f, AVPacket *pkt)
2845 if (nb_input_files > 1)
2846 return get_input_packet_mt(f, pkt);
2848 return av_read_frame(f->ctx, pkt);
2851 static int got_eagain(void)
2854 for (i = 0; i < nb_output_streams; i++)
2855 if (output_streams[i]->unavailable)
2860 static void reset_eagain(void)
2863 for (i = 0; i < nb_input_files; i++)
2864 input_files[i]->eagain = 0;
2865 for (i = 0; i < nb_output_streams; i++)
2866 output_streams[i]->unavailable = 0;
2871 * - 0 -- one packet was read and processed
2872 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2873 * this function should be called again
2874 * - AVERROR_EOF -- this function should not be called again
2876 static int process_input(int file_index)
2878 InputFile *ifile = input_files[file_index];
2879 AVFormatContext *is;
2885 ret = get_input_packet(ifile, &pkt);
2887 if (ret == AVERROR(EAGAIN)) {
2892 if (ret != AVERROR_EOF) {
2893 print_error(is->filename, ret);
2897 ifile->eof_reached = 1;
2899 for (i = 0; i < ifile->nb_streams; i++) {
2900 ist = input_streams[ifile->ist_index + i];
2901 if (ist->decoding_needed)
2902 output_packet(ist, NULL);
2904 /* mark all outputs that don't go through lavfi as finished */
2905 for (j = 0; j < nb_output_streams; j++) {
2906 OutputStream *ost = output_streams[j];
2908 if (ost->source_index == ifile->ist_index + i &&
2909 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2910 close_output_stream(ost);
2914 return AVERROR(EAGAIN);
2920 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2921 is->streams[pkt.stream_index]);
2923 /* the following test is needed in case new streams appear
2924 dynamically in stream : we ignore them */
2925 if (pkt.stream_index >= ifile->nb_streams) {
2926 report_new_stream(file_index, &pkt);
2927 goto discard_packet;
2930 ist = input_streams[ifile->ist_index + pkt.stream_index];
2932 goto discard_packet;
2935 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2936 "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",
2937 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2938 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2939 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2940 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2941 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2942 av_ts2str(input_files[ist->file_index]->ts_offset),
2943 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2946 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2947 int64_t stime, stime2;
2948 // Correcting starttime based on the enabled streams
2949 // 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.
2950 // so we instead do it here as part of discontinuity handling
2951 if ( ist->next_dts == AV_NOPTS_VALUE
2952 && ifile->ts_offset == -is->start_time
2953 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2954 int64_t new_start_time = INT64_MAX;
2955 for (i=0; i<is->nb_streams; i++) {
2956 AVStream *st = is->streams[i];
2957 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2959 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2961 if (new_start_time > is->start_time) {
2962 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2963 ifile->ts_offset = -new_start_time;
2967 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2968 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2969 ist->wrap_correction_done = 1;
2971 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2972 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2973 ist->wrap_correction_done = 0;
2975 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2976 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2977 ist->wrap_correction_done = 0;
2981 if (pkt.dts != AV_NOPTS_VALUE)
2982 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2983 if (pkt.pts != AV_NOPTS_VALUE)
2984 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2986 if (pkt.pts != AV_NOPTS_VALUE)
2987 pkt.pts *= ist->ts_scale;
2988 if (pkt.dts != AV_NOPTS_VALUE)
2989 pkt.dts *= ist->ts_scale;
2991 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2993 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2994 int64_t delta = pkt_dts - ist->next_dts;
2995 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2996 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2997 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2998 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2999 pkt_dts+1<ist->pts){
3000 ifile->ts_offset -= delta;
3001 av_log(NULL, AV_LOG_DEBUG,
3002 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3003 delta, ifile->ts_offset);
3004 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3005 if (pkt.pts != AV_NOPTS_VALUE)
3006 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3009 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3010 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3012 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3013 pkt.dts = AV_NOPTS_VALUE;
3015 if (pkt.pts != AV_NOPTS_VALUE){
3016 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3017 delta = pkt_pts - ist->next_dts;
3018 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3019 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3021 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3022 pkt.pts = AV_NOPTS_VALUE;
3029 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",
3030 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3031 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3032 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3033 av_ts2str(input_files[ist->file_index]->ts_offset),
3034 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3037 sub2video_heartbeat(ist, pkt.pts);
3039 ret = output_packet(ist, &pkt);
3042 av_strerror(ret, buf, sizeof(buf));
3043 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3044 ist->file_index, ist->st->index, buf);
3050 av_free_packet(&pkt);
3056 * Perform a step of transcoding for the specified filter graph.
3058 * @param[in] graph filter graph to consider
3059 * @param[out] best_ist input stream where a frame would allow to continue
3060 * @return 0 for success, <0 for error
3062 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3065 int nb_requests, nb_requests_max = 0;
3066 InputFilter *ifilter;
3070 ret = avfilter_graph_request_oldest(graph->graph);
3072 return reap_filters();
3074 if (ret == AVERROR_EOF) {
3075 ret = reap_filters();
3076 for (i = 0; i < graph->nb_outputs; i++)
3077 close_output_stream(graph->outputs[i]->ost);
3080 if (ret != AVERROR(EAGAIN))
3083 for (i = 0; i < graph->nb_inputs; i++) {
3084 ifilter = graph->inputs[i];
3086 if (input_files[ist->file_index]->eagain ||
3087 input_files[ist->file_index]->eof_reached)
3089 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3090 if (nb_requests > nb_requests_max) {
3091 nb_requests_max = nb_requests;
3097 for (i = 0; i < graph->nb_outputs; i++)
3098 graph->outputs[i]->ost->unavailable = 1;
3104 * Run a single step of transcoding.
3106 * @return 0 for success, <0 for error
3108 static int transcode_step(void)
3114 ost = choose_output();
3121 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3126 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3131 av_assert0(ost->source_index >= 0);
3132 ist = input_streams[ost->source_index];
3135 ret = process_input(ist->file_index);
3136 if (ret == AVERROR(EAGAIN)) {
3137 if (input_files[ist->file_index]->eagain)
3138 ost->unavailable = 1;
3142 return ret == AVERROR_EOF ? 0 : ret;
3144 return reap_filters();
3148 * The following code is the main loop of the file converter
3150 static int transcode(void)
3153 AVFormatContext *os;
3156 int64_t timer_start;
3158 ret = transcode_init();
3162 if (stdin_interaction) {
3163 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3166 timer_start = av_gettime();
3169 if ((ret = init_input_threads()) < 0)
3173 while (!received_sigterm) {
3174 int64_t cur_time= av_gettime();
3176 /* if 'q' pressed, exits */
3177 if (stdin_interaction)
3178 if (check_keyboard_interaction(cur_time) < 0)
3181 /* check if there's any stream where output is still needed */
3182 if (!need_output()) {
3183 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3187 ret = transcode_step();
3189 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3192 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3196 /* dump report by using the output first video and audio streams */
3197 print_report(0, timer_start, cur_time);
3200 free_input_threads();
3203 /* at the end of stream, we must flush the decoder buffers */
3204 for (i = 0; i < nb_input_streams; i++) {
3205 ist = input_streams[i];
3206 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3207 output_packet(ist, NULL);
3214 /* write the trailer if needed and close file */
3215 for (i = 0; i < nb_output_files; i++) {
3216 os = output_files[i]->ctx;
3217 av_write_trailer(os);
3220 /* dump report by using the first video and audio streams */
3221 print_report(1, timer_start, av_gettime());
3223 /* close each encoder */
3224 for (i = 0; i < nb_output_streams; i++) {
3225 ost = output_streams[i];
3226 if (ost->encoding_needed) {
3227 av_freep(&ost->st->codec->stats_in);
3228 avcodec_close(ost->st->codec);
3232 /* close each decoder */
3233 for (i = 0; i < nb_input_streams; i++) {
3234 ist = input_streams[i];
3235 if (ist->decoding_needed) {
3236 avcodec_close(ist->st->codec);
3245 free_input_threads();
3248 if (output_streams) {
3249 for (i = 0; i < nb_output_streams; i++) {
3250 ost = output_streams[i];
3252 if (ost->stream_copy)
3253 av_freep(&ost->st->codec->extradata);
3255 fclose(ost->logfile);
3256 ost->logfile = NULL;
3258 av_freep(&ost->st->codec->subtitle_header);
3259 av_free(ost->forced_kf_pts);
3260 av_dict_free(&ost->opts);
3261 av_dict_free(&ost->swr_opts);
3262 av_dict_free(&ost->resample_opts);
3270 static int64_t getutime(void)
3273 struct rusage rusage;
3275 getrusage(RUSAGE_SELF, &rusage);
3276 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3277 #elif HAVE_GETPROCESSTIMES
3279 FILETIME c, e, k, u;
3280 proc = GetCurrentProcess();
3281 GetProcessTimes(proc, &c, &e, &k, &u);
3282 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3284 return av_gettime();
3288 static int64_t getmaxrss(void)
3290 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3291 struct rusage rusage;
3292 getrusage(RUSAGE_SELF, &rusage);
3293 return (int64_t)rusage.ru_maxrss * 1024;
3294 #elif HAVE_GETPROCESSMEMORYINFO
3296 PROCESS_MEMORY_COUNTERS memcounters;
3297 proc = GetCurrentProcess();
3298 memcounters.cb = sizeof(memcounters);
3299 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3300 return memcounters.PeakPagefileUsage;
3306 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3310 int main(int argc, char **argv)
3315 atexit(exit_program);
3317 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3319 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3320 parse_loglevel(argc, argv, options);
3322 if(argc>1 && !strcmp(argv[1], "-d")){
3324 av_log_set_callback(log_callback_null);
3329 avcodec_register_all();
3331 avdevice_register_all();
3333 avfilter_register_all();
3335 avformat_network_init();
3337 show_banner(argc, argv, options);
3341 /* parse options and open all input/output files */
3342 ret = ffmpeg_parse_options(argc, argv);
3346 if (nb_output_files <= 0 && nb_input_files == 0) {
3348 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3352 /* file converter / grab */
3353 if (nb_output_files <= 0) {
3354 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3358 // if (nb_input_files == 0) {
3359 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3363 current_time = ti = getutime();
3364 if (transcode() < 0)
3366 ti = getutime() - ti;
3368 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3371 exit(received_nb_signals ? 255 : 0);