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
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
46 #include "libswresample/swresample.h"
47 #include "libavutil/opt.h"
48 #include "libavutil/channel_layout.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/samplefmt.h"
51 #include "libavutil/fifo.h"
52 #include "libavutil/intreadwrite.h"
53 #include "libavutil/dict.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/pixdesc.h"
56 #include "libavutil/avstring.h"
57 #include "libavutil/libm.h"
58 #include "libavutil/imgutils.h"
59 #include "libavutil/timestamp.h"
60 #include "libavutil/bprint.h"
61 #include "libavutil/time.h"
62 #include "libavutil/threadmessage.h"
63 #include "libavformat/os_support.h"
65 #include "libavformat/ffm.h" // not public API
67 # include "libavfilter/avcodec.h"
68 # include "libavfilter/avfilter.h"
69 # include "libavfilter/buffersrc.h"
70 # include "libavfilter/buffersink.h"
72 #if HAVE_SYS_RESOURCE_H
74 #include <sys/types.h>
75 #include <sys/resource.h>
76 #elif HAVE_GETPROCESSTIMES
79 #if HAVE_GETPROCESSMEMORYINFO
85 #include <sys/select.h>
90 #include <sys/ioctl.h>
104 #include "cmdutils.h"
106 #include "libavutil/avassert.h"
108 const char program_name[] = "ffmpeg";
109 const int program_birth_year = 2000;
111 static FILE *vstats_file;
113 const char *const forced_keyframes_const_names[] = {
122 static void do_video_stats(OutputStream *ost, int frame_size);
123 static int64_t getutime(void);
124 static int64_t getmaxrss(void);
126 static int run_as_daemon = 0;
127 static int nb_frames_dup = 0;
128 static int nb_frames_drop = 0;
129 static int64_t decode_error_stat[2];
131 static int current_time;
132 AVIOContext *progress_avio = NULL;
134 static uint8_t *subtitle_out;
136 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
138 InputStream **input_streams = NULL;
139 int nb_input_streams = 0;
140 InputFile **input_files = NULL;
141 int nb_input_files = 0;
143 OutputStream **output_streams = NULL;
144 int nb_output_streams = 0;
145 OutputFile **output_files = NULL;
146 int nb_output_files = 0;
148 FilterGraph **filtergraphs;
153 /* init terminal so that we can grab keys */
154 static struct termios oldtty;
155 static int restore_tty;
158 static void free_input_threads(void);
162 Convert subtitles to video with alpha to insert them in filter graphs.
163 This is a temporary solution until libavfilter gets real subtitles support.
166 static int sub2video_get_blank_frame(InputStream *ist)
169 AVFrame *frame = ist->sub2video.frame;
171 av_frame_unref(frame);
172 ist->sub2video.frame->width = ist->sub2video.w;
173 ist->sub2video.frame->height = ist->sub2video.h;
174 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
175 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
177 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
181 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
184 uint32_t *pal, *dst2;
188 if (r->type != SUBTITLE_BITMAP) {
189 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
192 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
193 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
197 dst += r->y * dst_linesize + r->x * 4;
198 src = r->pict.data[0];
199 pal = (uint32_t *)r->pict.data[1];
200 for (y = 0; y < r->h; y++) {
201 dst2 = (uint32_t *)dst;
203 for (x = 0; x < r->w; x++)
204 *(dst2++) = pal[*(src2++)];
206 src += r->pict.linesize[0];
210 static void sub2video_push_ref(InputStream *ist, int64_t pts)
212 AVFrame *frame = ist->sub2video.frame;
215 av_assert1(frame->data[0]);
216 ist->sub2video.last_pts = frame->pts = pts;
217 for (i = 0; i < ist->nb_filters; i++)
218 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
219 AV_BUFFERSRC_FLAG_KEEP_REF |
220 AV_BUFFERSRC_FLAG_PUSH);
223 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
225 int w = ist->sub2video.w, h = ist->sub2video.h;
226 AVFrame *frame = ist->sub2video.frame;
230 int64_t pts, end_pts;
235 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
236 AV_TIME_BASE_Q, ist->st->time_base);
237 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
238 AV_TIME_BASE_Q, ist->st->time_base);
239 num_rects = sub->num_rects;
241 pts = ist->sub2video.end_pts;
245 if (sub2video_get_blank_frame(ist) < 0) {
246 av_log(ist->dec_ctx, AV_LOG_ERROR,
247 "Impossible to get a blank canvas.\n");
250 dst = frame->data [0];
251 dst_linesize = frame->linesize[0];
252 for (i = 0; i < num_rects; i++)
253 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
254 sub2video_push_ref(ist, pts);
255 ist->sub2video.end_pts = end_pts;
258 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
260 InputFile *infile = input_files[ist->file_index];
264 /* When a frame is read from a file, examine all sub2video streams in
265 the same file and send the sub2video frame again. Otherwise, decoded
266 video frames could be accumulating in the filter graph while a filter
267 (possibly overlay) is desperately waiting for a subtitle frame. */
268 for (i = 0; i < infile->nb_streams; i++) {
269 InputStream *ist2 = input_streams[infile->ist_index + i];
270 if (!ist2->sub2video.frame)
272 /* subtitles seem to be usually muxed ahead of other streams;
273 if not, substracting a larger time here is necessary */
274 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
275 /* do not send the heartbeat frame if the subtitle is already ahead */
276 if (pts2 <= ist2->sub2video.last_pts)
278 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
279 sub2video_update(ist2, NULL);
280 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
281 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
283 sub2video_push_ref(ist2, pts2);
287 static void sub2video_flush(InputStream *ist)
291 if (ist->sub2video.end_pts < INT64_MAX)
292 sub2video_update(ist, NULL);
293 for (i = 0; i < ist->nb_filters; i++)
294 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
297 /* end of sub2video hack */
299 static void term_exit_sigsafe(void)
303 tcsetattr (0, TCSANOW, &oldtty);
309 av_log(NULL, AV_LOG_QUIET, "%s", "");
313 static volatile int received_sigterm = 0;
314 static volatile int received_nb_signals = 0;
315 static volatile int transcode_init_done = 0;
316 static int main_return_code = 0;
319 sigterm_handler(int sig)
321 received_sigterm = sig;
322 received_nb_signals++;
324 if(received_nb_signals > 3)
335 istty = isatty(0) && isatty(2);
337 if (istty && tcgetattr (0, &tty) == 0) {
341 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
342 |INLCR|IGNCR|ICRNL|IXON);
343 tty.c_oflag |= OPOST;
344 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
345 tty.c_cflag &= ~(CSIZE|PARENB);
350 tcsetattr (0, TCSANOW, &tty);
352 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
355 avformat_network_deinit();
357 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
358 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
360 signal(SIGXCPU, sigterm_handler);
364 /* read a key without blocking */
365 static int read_key(void)
377 n = select(1, &rfds, NULL, NULL, &tv);
386 # if HAVE_PEEKNAMEDPIPE
388 static HANDLE input_handle;
391 input_handle = GetStdHandle(STD_INPUT_HANDLE);
392 is_pipe = !GetConsoleMode(input_handle, &dw);
395 if (stdin->_cnt > 0) {
400 /* When running under a GUI, you will end here. */
401 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
402 // input pipe may have been closed by the program that ran ffmpeg
420 static int decode_interrupt_cb(void *ctx)
422 return received_nb_signals > transcode_init_done;
425 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
427 static void ffmpeg_cleanup(int ret)
432 int maxrss = getmaxrss() / 1024;
433 printf("bench: maxrss=%ikB\n", maxrss);
436 for (i = 0; i < nb_filtergraphs; i++) {
437 FilterGraph *fg = filtergraphs[i];
438 avfilter_graph_free(&fg->graph);
439 for (j = 0; j < fg->nb_inputs; j++) {
440 av_freep(&fg->inputs[j]->name);
441 av_freep(&fg->inputs[j]);
443 av_freep(&fg->inputs);
444 for (j = 0; j < fg->nb_outputs; j++) {
445 av_freep(&fg->outputs[j]->name);
446 av_freep(&fg->outputs[j]);
448 av_freep(&fg->outputs);
449 av_freep(&fg->graph_desc);
451 av_freep(&filtergraphs[i]);
453 av_freep(&filtergraphs);
455 av_freep(&subtitle_out);
458 for (i = 0; i < nb_output_files; i++) {
459 OutputFile *of = output_files[i];
460 AVFormatContext *s = of->ctx;
461 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
463 avformat_free_context(s);
464 av_dict_free(&of->opts);
466 av_freep(&output_files[i]);
468 for (i = 0; i < nb_output_streams; i++) {
469 OutputStream *ost = output_streams[i];
470 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
472 AVBitStreamFilterContext *next = bsfc->next;
473 av_bitstream_filter_close(bsfc);
476 ost->bitstream_filters = NULL;
477 av_frame_free(&ost->filtered_frame);
479 av_parser_close(ost->parser);
481 av_freep(&ost->forced_keyframes);
482 av_expr_free(ost->forced_keyframes_pexpr);
483 av_freep(&ost->avfilter);
484 av_freep(&ost->logfile_prefix);
486 av_freep(&output_streams[i]);
489 free_input_threads();
491 for (i = 0; i < nb_input_files; i++) {
492 avformat_close_input(&input_files[i]->ctx);
493 av_freep(&input_files[i]);
495 for (i = 0; i < nb_input_streams; i++) {
496 InputStream *ist = input_streams[i];
498 av_frame_free(&ist->decoded_frame);
499 av_frame_free(&ist->filter_frame);
500 av_dict_free(&ist->decoder_opts);
501 avsubtitle_free(&ist->prev_sub.subtitle);
502 av_frame_free(&ist->sub2video.frame);
503 av_freep(&ist->filters);
504 av_freep(&ist->hwaccel_device);
506 avcodec_free_context(&ist->dec_ctx);
508 av_freep(&input_streams[i]);
513 av_free(vstats_filename);
515 av_freep(&input_streams);
516 av_freep(&input_files);
517 av_freep(&output_streams);
518 av_freep(&output_files);
522 avformat_network_deinit();
524 if (received_sigterm) {
525 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
526 (int) received_sigterm);
527 } else if (ret && transcode_init_done) {
528 av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
533 void assert_avoptions(AVDictionary *m)
535 AVDictionaryEntry *t;
536 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
537 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
542 static void abort_codec_experimental(AVCodec *c, int encoder)
547 static void update_benchmark(const char *fmt, ...)
549 if (do_benchmark_all) {
550 int64_t t = getutime();
556 vsnprintf(buf, sizeof(buf), fmt, va);
558 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
564 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
567 for (i = 0; i < nb_output_streams; i++) {
568 OutputStream *ost2 = output_streams[i];
569 ost2->finished |= ost == ost2 ? this_stream : others;
573 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
575 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
576 AVCodecContext *avctx = ost->st->codec;
579 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
580 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
581 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
584 * Audio encoders may split the packets -- #frames in != #packets out.
585 * But there is no reordering, so we can limit the number of output packets
586 * by simply dropping them here.
587 * Counting encoded video frames needs to be done separately because of
588 * reordering, see do_video_out()
590 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
591 if (ost->frame_number >= ost->max_frames) {
599 av_packet_split_side_data(pkt);
602 AVPacket new_pkt = *pkt;
603 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
604 &new_pkt.data, &new_pkt.size,
605 pkt->data, pkt->size,
606 pkt->flags & AV_PKT_FLAG_KEY);
607 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
608 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
610 memcpy(t, new_pkt.data, new_pkt.size);
611 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
620 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
621 av_buffer_default_free, NULL, 0);
625 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
626 bsfc->filter->name, pkt->stream_index,
627 avctx->codec ? avctx->codec->name : "copy");
637 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
638 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
639 pkt->dts != AV_NOPTS_VALUE &&
640 ost->last_mux_dts != AV_NOPTS_VALUE) {
641 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
642 if (pkt->dts < max) {
643 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
644 av_log(s, loglevel, "Non-monotonous DTS in output stream "
645 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
646 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
648 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
651 av_log(s, loglevel, "changing to %"PRId64". This may result "
652 "in incorrect timestamps in the output file.\n",
654 if(pkt->pts >= pkt->dts)
655 pkt->pts = FFMAX(pkt->pts, max);
659 ost->last_mux_dts = pkt->dts;
661 ost->data_size += pkt->size;
662 ost->packets_written++;
664 pkt->stream_index = ost->index;
667 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
668 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
669 av_get_media_type_string(ost->st->codec->codec_type),
670 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
671 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
676 ret = av_interleaved_write_frame(s, pkt);
678 print_error("av_interleaved_write_frame()", ret);
679 main_return_code = 1;
680 close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
685 static void close_output_stream(OutputStream *ost)
687 OutputFile *of = output_files[ost->file_index];
689 ost->finished |= ENCODER_FINISHED;
691 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
692 of->recording_time = FFMIN(of->recording_time, end);
696 static int check_recording_time(OutputStream *ost)
698 OutputFile *of = output_files[ost->file_index];
700 if (of->recording_time != INT64_MAX &&
701 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
702 AV_TIME_BASE_Q) >= 0) {
703 close_output_stream(ost);
709 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
712 AVCodecContext *enc = ost->st->codec;
716 av_init_packet(&pkt);
720 if (!check_recording_time(ost))
723 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
724 frame->pts = ost->sync_opts;
725 ost->sync_opts = frame->pts + frame->nb_samples;
726 ost->samples_encoded += frame->nb_samples;
727 ost->frames_encoded++;
729 av_assert0(pkt.size || !pkt.data);
730 update_benchmark(NULL);
732 av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
733 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
734 av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
735 enc->time_base.num, enc->time_base.den);
738 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
739 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
742 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
745 if (pkt.pts != AV_NOPTS_VALUE)
746 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
747 if (pkt.dts != AV_NOPTS_VALUE)
748 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
749 if (pkt.duration > 0)
750 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
753 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
754 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
755 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
756 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
759 write_frame(s, &pkt, ost);
763 static void do_subtitle_out(AVFormatContext *s,
768 int subtitle_out_max_size = 1024 * 1024;
769 int subtitle_out_size, nb, i;
774 if (sub->pts == AV_NOPTS_VALUE) {
775 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
781 enc = ost->st->codec;
784 subtitle_out = av_malloc(subtitle_out_max_size);
787 /* Note: DVB subtitle need one packet to draw them and one other
788 packet to clear them */
789 /* XXX: signal it in the codec context ? */
790 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
795 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
797 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
798 pts -= output_files[ost->file_index]->start_time;
799 for (i = 0; i < nb; i++) {
800 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
801 if (!check_recording_time(ost))
805 // start_display_time is required to be 0
806 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
807 sub->end_display_time -= sub->start_display_time;
808 sub->start_display_time = 0;
812 ost->frames_encoded++;
814 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
815 subtitle_out_max_size, sub);
816 if (subtitle_out_size < 0) {
817 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
821 av_init_packet(&pkt);
822 pkt.data = subtitle_out;
823 pkt.size = subtitle_out_size;
824 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
825 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
826 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
827 /* XXX: the pts correction is handled here. Maybe handling
828 it in the codec would be better */
830 pkt.pts += 90 * sub->start_display_time;
832 pkt.pts += 90 * sub->end_display_time;
835 write_frame(s, &pkt, ost);
839 static void do_video_out(AVFormatContext *s,
843 int ret, format_video_sync;
845 AVCodecContext *enc = ost->st->codec;
847 double sync_ipts, delta;
850 InputStream *ist = NULL;
852 if (ost->source_index >= 0)
853 ist = input_streams[ost->source_index];
855 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
856 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
858 sync_ipts = in_picture->pts;
859 delta = sync_ipts - ost->sync_opts + duration;
861 /* by default, we output a single frame */
864 format_video_sync = video_sync_method;
865 if (format_video_sync == VSYNC_AUTO) {
866 if(!strcmp(s->oformat->name, "avi")) {
867 format_video_sync = VSYNC_VFR;
869 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
871 && format_video_sync == VSYNC_CFR
872 && input_files[ist->file_index]->ctx->nb_streams == 1
873 && input_files[ist->file_index]->input_ts_offset == 0) {
874 format_video_sync = VSYNC_VSCFR;
876 if (format_video_sync == VSYNC_CFR && copy_ts) {
877 format_video_sync = VSYNC_VSCFR;
881 switch (format_video_sync) {
883 if (ost->frame_number == 0 && delta - duration >= 0.5) {
884 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
886 ost->sync_opts = lrint(sync_ipts);
889 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
892 else if (delta > 1.1)
893 nb_frames = lrintf(delta);
898 else if (delta > 0.6)
899 ost->sync_opts = lrint(sync_ipts);
902 case VSYNC_PASSTHROUGH:
903 ost->sync_opts = lrint(sync_ipts);
909 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
910 if (nb_frames == 0) {
912 av_log(NULL, AV_LOG_VERBOSE,
913 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
914 ost->frame_number, ost->st->index, in_picture->pts);
916 } else if (nb_frames > 1) {
917 if (nb_frames > dts_error_threshold * 30) {
918 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
922 nb_frames_dup += nb_frames - 1;
923 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
926 /* duplicates frame if needed */
927 for (i = 0; i < nb_frames; i++) {
928 av_init_packet(&pkt);
932 in_picture->pts = ost->sync_opts;
935 if (!check_recording_time(ost))
937 if (ost->frame_number >= ost->max_frames)
941 if (s->oformat->flags & AVFMT_RAWPICTURE &&
942 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
943 /* raw pictures are written as AVPicture structure to
944 avoid any copies. We support temporarily the older
946 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
947 enc->coded_frame->top_field_first = in_picture->top_field_first;
948 if (enc->coded_frame->interlaced_frame)
949 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
951 enc->field_order = AV_FIELD_PROGRESSIVE;
952 pkt.data = (uint8_t *)in_picture;
953 pkt.size = sizeof(AVPicture);
954 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
955 pkt.flags |= AV_PKT_FLAG_KEY;
957 write_frame(s, &pkt, ost);
959 int got_packet, forced_keyframe = 0;
962 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
963 ost->top_field_first >= 0)
964 in_picture->top_field_first = !!ost->top_field_first;
966 if (in_picture->interlaced_frame) {
967 if (enc->codec->id == AV_CODEC_ID_MJPEG)
968 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
970 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
972 enc->field_order = AV_FIELD_PROGRESSIVE;
974 in_picture->quality = ost->st->codec->global_quality;
975 if (!enc->me_threshold)
976 in_picture->pict_type = 0;
978 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
979 in_picture->pts * av_q2d(enc->time_base) : NAN;
980 if (ost->forced_kf_index < ost->forced_kf_count &&
981 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
982 ost->forced_kf_index++;
984 } else if (ost->forced_keyframes_pexpr) {
986 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
987 res = av_expr_eval(ost->forced_keyframes_pexpr,
988 ost->forced_keyframes_expr_const_values, NULL);
989 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
990 ost->forced_keyframes_expr_const_values[FKF_N],
991 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
992 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
993 ost->forced_keyframes_expr_const_values[FKF_T],
994 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
998 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
999 ost->forced_keyframes_expr_const_values[FKF_N];
1000 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
1001 ost->forced_keyframes_expr_const_values[FKF_T];
1002 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
1005 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
1008 if (forced_keyframe) {
1009 in_picture->pict_type = AV_PICTURE_TYPE_I;
1010 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1013 update_benchmark(NULL);
1015 av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1016 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1017 av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1018 enc->time_base.num, enc->time_base.den);
1021 ost->frames_encoded++;
1023 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1024 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1026 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1032 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1033 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1034 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1035 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1038 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1039 pkt.pts = ost->sync_opts;
1041 if (pkt.pts != AV_NOPTS_VALUE)
1042 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1043 if (pkt.dts != AV_NOPTS_VALUE)
1044 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1047 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1048 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1049 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1050 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1053 frame_size = pkt.size;
1054 write_frame(s, &pkt, ost);
1056 /* if two pass, output log */
1057 if (ost->logfile && enc->stats_out) {
1058 fprintf(ost->logfile, "%s", enc->stats_out);
1064 * For video, number of frames in == number of packets out.
1065 * But there may be reordering, so we can't throw away frames on encoder
1066 * flush, we need to limit them here, before they go into encoder.
1068 ost->frame_number++;
1070 if (vstats_filename && frame_size)
1071 do_video_stats(ost, frame_size);
1075 static double psnr(double d)
1077 return -10.0 * log(d) / log(10.0);
1080 static void do_video_stats(OutputStream *ost, int frame_size)
1082 AVCodecContext *enc;
1084 double ti1, bitrate, avg_bitrate;
1086 /* this is executed just the first time do_video_stats is called */
1088 vstats_file = fopen(vstats_filename, "w");
1095 enc = ost->st->codec;
1096 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1097 frame_number = ost->st->nb_frames;
1098 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1099 if (enc->flags&CODEC_FLAG_PSNR)
1100 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1102 fprintf(vstats_file,"f_size= %6d ", frame_size);
1103 /* compute pts value */
1104 ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
1108 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1109 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1110 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1111 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1112 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1117 * Get and encode new output from any of the filtergraphs, without causing
1120 * @return 0 for success, <0 for severe errors
1122 static int reap_filters(void)
1124 AVFrame *filtered_frame = NULL;
1128 /* Reap all buffers present in the buffer sinks */
1129 for (i = 0; i < nb_output_streams; i++) {
1130 OutputStream *ost = output_streams[i];
1131 OutputFile *of = output_files[ost->file_index];
1132 AVFilterContext *filter;
1133 AVCodecContext *enc = ost->st->codec;
1138 filter = ost->filter->filter;
1140 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1141 return AVERROR(ENOMEM);
1143 filtered_frame = ost->filtered_frame;
1146 ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1147 AV_BUFFERSINK_FLAG_NO_REQUEST);
1149 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1150 av_log(NULL, AV_LOG_WARNING,
1151 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1155 if (ost->finished) {
1156 av_frame_unref(filtered_frame);
1159 frame_pts = AV_NOPTS_VALUE;
1160 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1161 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1162 filtered_frame->pts = frame_pts =
1163 av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1164 av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1166 //if (ost->source_index >= 0)
1167 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1169 switch (filter->inputs[0]->type) {
1170 case AVMEDIA_TYPE_VIDEO:
1171 filtered_frame->pts = frame_pts;
1172 if (!ost->frame_aspect_ratio.num)
1173 enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1176 av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1177 av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1178 enc->time_base.num, enc->time_base.den);
1181 do_video_out(of->ctx, ost, filtered_frame);
1183 case AVMEDIA_TYPE_AUDIO:
1184 filtered_frame->pts = frame_pts;
1185 if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1186 enc->channels != av_frame_get_channels(filtered_frame)) {
1187 av_log(NULL, AV_LOG_ERROR,
1188 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1191 do_audio_out(of->ctx, ost, filtered_frame);
1194 // TODO support subtitle filters
1198 av_frame_unref(filtered_frame);
1205 static void print_final_stats(int64_t total_size)
1207 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1208 uint64_t subtitle_size = 0;
1209 uint64_t data_size = 0;
1210 float percent = -1.0;
1213 for (i = 0; i < nb_output_streams; i++) {
1214 OutputStream *ost = output_streams[i];
1215 switch (ost->st->codec->codec_type) {
1216 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1217 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1218 case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1219 default: other_size += ost->data_size; break;
1221 extra_size += ost->st->codec->extradata_size;
1222 data_size += ost->data_size;
1225 if (data_size && total_size>0 && total_size >= data_size)
1226 percent = 100.0 * (total_size - data_size) / data_size;
1228 av_log(NULL, AV_LOG_INFO, "\n");
1229 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
1230 video_size / 1024.0,
1231 audio_size / 1024.0,
1232 subtitle_size / 1024.0,
1233 other_size / 1024.0,
1234 extra_size / 1024.0);
1236 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1238 av_log(NULL, AV_LOG_INFO, "unknown");
1239 av_log(NULL, AV_LOG_INFO, "\n");
1241 /* print verbose per-stream stats */
1242 for (i = 0; i < nb_input_files; i++) {
1243 InputFile *f = input_files[i];
1244 uint64_t total_packets = 0, total_size = 0;
1246 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1247 i, f->ctx->filename);
1249 for (j = 0; j < f->nb_streams; j++) {
1250 InputStream *ist = input_streams[f->ist_index + j];
1251 enum AVMediaType type = ist->dec_ctx->codec_type;
1253 total_size += ist->data_size;
1254 total_packets += ist->nb_packets;
1256 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1257 i, j, media_type_string(type));
1258 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1259 ist->nb_packets, ist->data_size);
1261 if (ist->decoding_needed) {
1262 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1263 ist->frames_decoded);
1264 if (type == AVMEDIA_TYPE_AUDIO)
1265 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1266 av_log(NULL, AV_LOG_VERBOSE, "; ");
1269 av_log(NULL, AV_LOG_VERBOSE, "\n");
1272 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1273 total_packets, total_size);
1276 for (i = 0; i < nb_output_files; i++) {
1277 OutputFile *of = output_files[i];
1278 uint64_t total_packets = 0, total_size = 0;
1280 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1281 i, of->ctx->filename);
1283 for (j = 0; j < of->ctx->nb_streams; j++) {
1284 OutputStream *ost = output_streams[of->ost_index + j];
1285 enum AVMediaType type = ost->st->codec->codec_type;
1287 total_size += ost->data_size;
1288 total_packets += ost->packets_written;
1290 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1291 i, j, media_type_string(type));
1292 if (ost->encoding_needed) {
1293 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1294 ost->frames_encoded);
1295 if (type == AVMEDIA_TYPE_AUDIO)
1296 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1297 av_log(NULL, AV_LOG_VERBOSE, "; ");
1300 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1301 ost->packets_written, ost->data_size);
1303 av_log(NULL, AV_LOG_VERBOSE, "\n");
1306 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1307 total_packets, total_size);
1309 if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1310 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1314 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1317 AVBPrint buf_script;
1319 AVFormatContext *oc;
1321 AVCodecContext *enc;
1322 int frame_number, vid, i;
1324 int64_t pts = INT64_MIN;
1325 static int64_t last_time = -1;
1326 static int qp_histogram[52];
1327 int hours, mins, secs, us;
1329 if (!print_stats && !is_last_report && !progress_avio)
1332 if (!is_last_report) {
1333 if (last_time == -1) {
1334 last_time = cur_time;
1337 if ((cur_time - last_time) < 500000)
1339 last_time = cur_time;
1343 oc = output_files[0]->ctx;
1345 total_size = avio_size(oc->pb);
1346 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1347 total_size = avio_tell(oc->pb);
1351 av_bprint_init(&buf_script, 0, 1);
1352 for (i = 0; i < nb_output_streams; i++) {
1354 ost = output_streams[i];
1355 enc = ost->st->codec;
1356 if (!ost->stream_copy && enc->coded_frame)
1357 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1358 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1359 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1360 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1361 ost->file_index, ost->index, q);
1363 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364 float fps, t = (cur_time-timer_start) / 1000000.0;
1366 frame_number = ost->frame_number;
1367 fps = t > 1 ? frame_number / t : 0;
1368 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1369 frame_number, fps < 9.95, fps, q);
1370 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1371 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1372 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1373 ost->file_index, ost->index, q);
1375 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1379 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1381 for (j = 0; j < 32; j++)
1382 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1384 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1386 double error, error_sum = 0;
1387 double scale, scale_sum = 0;
1389 char type[3] = { 'Y','U','V' };
1390 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1391 for (j = 0; j < 3; j++) {
1392 if (is_last_report) {
1393 error = enc->error[j];
1394 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1396 error = enc->coded_frame->error[j];
1397 scale = enc->width * enc->height * 255.0 * 255.0;
1403 p = psnr(error / scale);
1404 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1405 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1406 ost->file_index, ost->index, type[j] | 32, p);
1408 p = psnr(error_sum / scale_sum);
1409 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1410 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1411 ost->file_index, ost->index, p);
1415 /* compute min output value */
1416 if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
1417 pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
1418 ost->st->time_base, AV_TIME_BASE_Q));
1421 secs = pts / AV_TIME_BASE;
1422 us = pts % AV_TIME_BASE;
1428 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1430 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1432 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1433 "size=%8.0fkB time=", total_size / 1024.0);
1434 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1435 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1436 (100 * us) / AV_TIME_BASE);
1437 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1439 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1440 "bitrate=%6.1fkbits/s", bitrate);
1441 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1442 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1443 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1444 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1445 hours, mins, secs, us);
1447 if (nb_frames_dup || nb_frames_drop)
1448 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1449 nb_frames_dup, nb_frames_drop);
1450 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1451 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1453 if (print_stats || is_last_report) {
1454 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1455 fprintf(stderr, "%s \r", buf);
1457 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1462 if (progress_avio) {
1463 av_bprintf(&buf_script, "progress=%s\n",
1464 is_last_report ? "end" : "continue");
1465 avio_write(progress_avio, buf_script.str,
1466 FFMIN(buf_script.len, buf_script.size - 1));
1467 avio_flush(progress_avio);
1468 av_bprint_finalize(&buf_script, NULL);
1469 if (is_last_report) {
1470 avio_close(progress_avio);
1471 progress_avio = NULL;
1476 print_final_stats(total_size);
1479 static void flush_encoders(void)
1483 for (i = 0; i < nb_output_streams; i++) {
1484 OutputStream *ost = output_streams[i];
1485 AVCodecContext *enc = ost->st->codec;
1486 AVFormatContext *os = output_files[ost->file_index]->ctx;
1487 int stop_encoding = 0;
1489 if (!ost->encoding_needed)
1492 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1494 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1498 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1501 switch (ost->st->codec->codec_type) {
1502 case AVMEDIA_TYPE_AUDIO:
1503 encode = avcodec_encode_audio2;
1506 case AVMEDIA_TYPE_VIDEO:
1507 encode = avcodec_encode_video2;
1518 av_init_packet(&pkt);
1522 update_benchmark(NULL);
1523 ret = encode(enc, &pkt, NULL, &got_packet);
1524 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1526 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1529 if (ost->logfile && enc->stats_out) {
1530 fprintf(ost->logfile, "%s", enc->stats_out);
1536 if (ost->finished & MUXER_FINISHED) {
1537 av_free_packet(&pkt);
1540 if (pkt.pts != AV_NOPTS_VALUE)
1541 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1542 if (pkt.dts != AV_NOPTS_VALUE)
1543 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1544 if (pkt.duration > 0)
1545 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1546 pkt_size = pkt.size;
1547 write_frame(os, &pkt, ost);
1548 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1549 do_video_stats(ost, pkt_size);
1560 * Check whether a packet from ist should be written into ost at this time
1562 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1564 OutputFile *of = output_files[ost->file_index];
1565 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1567 if (ost->source_index != ist_index)
1573 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1579 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1581 OutputFile *of = output_files[ost->file_index];
1582 InputFile *f = input_files [ist->file_index];
1583 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1584 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1585 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1589 av_init_packet(&opkt);
1591 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1592 !ost->copy_initial_nonkeyframes)
1595 if (pkt->pts == AV_NOPTS_VALUE) {
1596 if (!ost->frame_number && ist->pts < start_time &&
1597 !ost->copy_prior_start)
1600 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1601 !ost->copy_prior_start)
1605 if (of->recording_time != INT64_MAX &&
1606 ist->pts >= of->recording_time + start_time) {
1607 close_output_stream(ost);
1611 if (f->recording_time != INT64_MAX) {
1612 start_time = f->ctx->start_time;
1613 if (f->start_time != AV_NOPTS_VALUE)
1614 start_time += f->start_time;
1615 if (ist->pts >= f->recording_time + start_time) {
1616 close_output_stream(ost);
1621 /* force the input stream PTS */
1622 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1625 if (pkt->pts != AV_NOPTS_VALUE)
1626 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1628 opkt.pts = AV_NOPTS_VALUE;
1630 if (pkt->dts == AV_NOPTS_VALUE)
1631 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1633 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1634 opkt.dts -= ost_tb_start_time;
1636 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1637 int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
1639 duration = ist->dec_ctx->frame_size;
1640 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1641 (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1642 ost->st->time_base) - ost_tb_start_time;
1645 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1646 opkt.flags = pkt->flags;
1648 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1649 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1650 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1651 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1652 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1654 if (av_parser_change(ost->parser, ost->st->codec,
1655 &opkt.data, &opkt.size,
1656 pkt->data, pkt->size,
1657 pkt->flags & AV_PKT_FLAG_KEY)) {
1658 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1663 opkt.data = pkt->data;
1664 opkt.size = pkt->size;
1666 av_copy_packet_side_data(&opkt, pkt);
1668 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1669 /* store AVPicture in AVPacket, as expected by the output format */
1670 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1671 opkt.data = (uint8_t *)&pict;
1672 opkt.size = sizeof(AVPicture);
1673 opkt.flags |= AV_PKT_FLAG_KEY;
1676 write_frame(of->ctx, &opkt, ost);
1679 int guess_input_channel_layout(InputStream *ist)
1681 AVCodecContext *dec = ist->dec_ctx;
1683 if (!dec->channel_layout) {
1684 char layout_name[256];
1686 if (dec->channels > ist->guess_layout_max)
1688 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1689 if (!dec->channel_layout)
1691 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1692 dec->channels, dec->channel_layout);
1693 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1694 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1699 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1701 AVFrame *decoded_frame, *f;
1702 AVCodecContext *avctx = ist->dec_ctx;
1703 int i, ret, err = 0, resample_changed;
1704 AVRational decoded_frame_tb;
1706 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1707 return AVERROR(ENOMEM);
1708 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1709 return AVERROR(ENOMEM);
1710 decoded_frame = ist->decoded_frame;
1712 update_benchmark(NULL);
1713 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1714 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1716 if (ret >= 0 && avctx->sample_rate <= 0) {
1717 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1718 ret = AVERROR_INVALIDDATA;
1721 if (*got_output || ret<0 || pkt->size)
1722 decode_error_stat[ret<0] ++;
1724 if (!*got_output || ret < 0) {
1726 for (i = 0; i < ist->nb_filters; i++)
1728 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1730 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1736 ist->samples_decoded += decoded_frame->nb_samples;
1737 ist->frames_decoded++;
1740 /* increment next_dts to use for the case where the input stream does not
1741 have timestamps or there are multiple frames in the packet */
1742 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1744 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1748 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1749 ist->resample_channels != avctx->channels ||
1750 ist->resample_channel_layout != decoded_frame->channel_layout ||
1751 ist->resample_sample_rate != decoded_frame->sample_rate;
1752 if (resample_changed) {
1753 char layout1[64], layout2[64];
1755 if (!guess_input_channel_layout(ist)) {
1756 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1757 "layout for Input Stream #%d.%d\n", ist->file_index,
1761 decoded_frame->channel_layout = avctx->channel_layout;
1763 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1764 ist->resample_channel_layout);
1765 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1766 decoded_frame->channel_layout);
1768 av_log(NULL, AV_LOG_INFO,
1769 "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",
1770 ist->file_index, ist->st->index,
1771 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1772 ist->resample_channels, layout1,
1773 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1774 avctx->channels, layout2);
1776 ist->resample_sample_fmt = decoded_frame->format;
1777 ist->resample_sample_rate = decoded_frame->sample_rate;
1778 ist->resample_channel_layout = decoded_frame->channel_layout;
1779 ist->resample_channels = avctx->channels;
1781 for (i = 0; i < nb_filtergraphs; i++)
1782 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1783 FilterGraph *fg = filtergraphs[i];
1785 if (configure_filtergraph(fg) < 0) {
1786 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1789 for (j = 0; j < fg->nb_outputs; j++) {
1790 OutputStream *ost = fg->outputs[j]->ost;
1791 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1792 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1793 av_buffersink_set_frame_size(ost->filter->filter,
1794 ost->st->codec->frame_size);
1799 /* if the decoder provides a pts, use it instead of the last packet pts.
1800 the decoder could be delaying output by a packet or more. */
1801 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1802 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1803 decoded_frame_tb = avctx->time_base;
1804 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1805 decoded_frame->pts = decoded_frame->pkt_pts;
1806 decoded_frame_tb = ist->st->time_base;
1807 } else if (pkt->pts != AV_NOPTS_VALUE) {
1808 decoded_frame->pts = pkt->pts;
1809 decoded_frame_tb = ist->st->time_base;
1811 decoded_frame->pts = ist->dts;
1812 decoded_frame_tb = AV_TIME_BASE_Q;
1814 pkt->pts = AV_NOPTS_VALUE;
1815 if (decoded_frame->pts != AV_NOPTS_VALUE)
1816 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1817 (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1818 (AVRational){1, avctx->sample_rate});
1819 for (i = 0; i < ist->nb_filters; i++) {
1820 if (i < ist->nb_filters - 1) {
1821 f = ist->filter_frame;
1822 err = av_frame_ref(f, decoded_frame);
1827 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1828 AV_BUFFERSRC_FLAG_PUSH);
1829 if (err == AVERROR_EOF)
1830 err = 0; /* ignore */
1834 decoded_frame->pts = AV_NOPTS_VALUE;
1836 av_frame_unref(ist->filter_frame);
1837 av_frame_unref(decoded_frame);
1838 return err < 0 ? err : ret;
1841 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1843 AVFrame *decoded_frame, *f;
1844 int i, ret = 0, err = 0, resample_changed;
1845 int64_t best_effort_timestamp;
1846 AVRational *frame_sample_aspect;
1848 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1849 return AVERROR(ENOMEM);
1850 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1851 return AVERROR(ENOMEM);
1852 decoded_frame = ist->decoded_frame;
1853 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1855 update_benchmark(NULL);
1856 ret = avcodec_decode_video2(ist->dec_ctx,
1857 decoded_frame, got_output, pkt);
1858 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1859 ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
1861 if (*got_output || ret<0 || pkt->size)
1862 decode_error_stat[ret<0] ++;
1864 if (!*got_output || ret < 0) {
1866 for (i = 0; i < ist->nb_filters; i++)
1868 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1870 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1876 if(ist->top_field_first>=0)
1877 decoded_frame->top_field_first = ist->top_field_first;
1879 ist->frames_decoded++;
1881 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1882 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1886 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1888 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1889 if(best_effort_timestamp != AV_NOPTS_VALUE)
1890 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1893 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1894 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
1895 ist->st->index, av_ts2str(decoded_frame->pts),
1896 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1897 best_effort_timestamp,
1898 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1899 decoded_frame->key_frame, decoded_frame->pict_type,
1900 ist->st->time_base.num, ist->st->time_base.den);
1905 if (ist->st->sample_aspect_ratio.num)
1906 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1908 resample_changed = ist->resample_width != decoded_frame->width ||
1909 ist->resample_height != decoded_frame->height ||
1910 ist->resample_pix_fmt != decoded_frame->format;
1911 if (resample_changed) {
1912 av_log(NULL, AV_LOG_INFO,
1913 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1914 ist->file_index, ist->st->index,
1915 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1916 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1918 ist->resample_width = decoded_frame->width;
1919 ist->resample_height = decoded_frame->height;
1920 ist->resample_pix_fmt = decoded_frame->format;
1922 for (i = 0; i < nb_filtergraphs; i++) {
1923 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1924 configure_filtergraph(filtergraphs[i]) < 0) {
1925 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1931 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1932 for (i = 0; i < ist->nb_filters; i++) {
1933 if (!frame_sample_aspect->num)
1934 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1936 if (i < ist->nb_filters - 1) {
1937 f = ist->filter_frame;
1938 err = av_frame_ref(f, decoded_frame);
1943 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1944 if (ret == AVERROR_EOF) {
1945 ret = 0; /* ignore */
1946 } else if (ret < 0) {
1947 av_log(NULL, AV_LOG_FATAL,
1948 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1954 av_frame_unref(ist->filter_frame);
1955 av_frame_unref(decoded_frame);
1956 return err < 0 ? err : ret;
1959 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1961 AVSubtitle subtitle;
1962 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1963 &subtitle, got_output, pkt);
1965 if (*got_output || ret<0 || pkt->size)
1966 decode_error_stat[ret<0] ++;
1968 if (ret < 0 || !*got_output) {
1970 sub2video_flush(ist);
1974 if (ist->fix_sub_duration) {
1976 if (ist->prev_sub.got_output) {
1977 end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1978 1000, AV_TIME_BASE);
1979 if (end < ist->prev_sub.subtitle.end_display_time) {
1980 av_log(ist->dec_ctx, AV_LOG_DEBUG,
1981 "Subtitle duration reduced from %d to %d%s\n",
1982 ist->prev_sub.subtitle.end_display_time, end,
1983 end <= 0 ? ", dropping it" : "");
1984 ist->prev_sub.subtitle.end_display_time = end;
1987 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1988 FFSWAP(int, ret, ist->prev_sub.ret);
1989 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1997 sub2video_update(ist, &subtitle);
1999 if (!subtitle.num_rects)
2002 ist->frames_decoded++;
2004 for (i = 0; i < nb_output_streams; i++) {
2005 OutputStream *ost = output_streams[i];
2007 if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2008 || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2011 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2015 avsubtitle_free(&subtitle);
2019 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2020 static int output_packet(InputStream *ist, const AVPacket *pkt)
2026 if (!ist->saw_first_ts) {
2027 ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2029 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2030 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2031 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2033 ist->saw_first_ts = 1;
2036 if (ist->next_dts == AV_NOPTS_VALUE)
2037 ist->next_dts = ist->dts;
2038 if (ist->next_pts == AV_NOPTS_VALUE)
2039 ist->next_pts = ist->pts;
2043 av_init_packet(&avpkt);
2051 if (pkt->dts != AV_NOPTS_VALUE) {
2052 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2053 if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2054 ist->next_pts = ist->pts = ist->dts;
2057 // while we have more to decode or while the decoder did output something on EOF
2058 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2062 ist->pts = ist->next_pts;
2063 ist->dts = ist->next_dts;
2065 if (avpkt.size && avpkt.size != pkt->size &&
2066 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2067 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2068 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2069 ist->showed_multi_packet_warning = 1;
2072 switch (ist->dec_ctx->codec_type) {
2073 case AVMEDIA_TYPE_AUDIO:
2074 ret = decode_audio (ist, &avpkt, &got_output);
2076 case AVMEDIA_TYPE_VIDEO:
2077 ret = decode_video (ist, &avpkt, &got_output);
2078 if (avpkt.duration) {
2079 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2080 } else if(ist->dec_ctx->time_base.num != 0 && ist->dec_ctx->time_base.den != 0) {
2081 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
2082 duration = ((int64_t)AV_TIME_BASE *
2083 ist->dec_ctx->time_base.num * ticks) /
2084 ist->dec_ctx->time_base.den;
2088 if(ist->dts != AV_NOPTS_VALUE && duration) {
2089 ist->next_dts += duration;
2091 ist->next_dts = AV_NOPTS_VALUE;
2094 ist->next_pts += duration; //FIXME the duration is not correct in some cases
2096 case AVMEDIA_TYPE_SUBTITLE:
2097 ret = transcode_subtitles(ist, &avpkt, &got_output);
2107 avpkt.pts= AV_NOPTS_VALUE;
2109 // touch data and size only if not EOF
2111 if(ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO)
2121 /* handle stream copy */
2122 if (!ist->decoding_needed) {
2123 ist->dts = ist->next_dts;
2124 switch (ist->dec_ctx->codec_type) {
2125 case AVMEDIA_TYPE_AUDIO:
2126 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
2127 ist->dec_ctx->sample_rate;
2129 case AVMEDIA_TYPE_VIDEO:
2130 if (ist->framerate.num) {
2131 // TODO: Remove work-around for c99-to-c89 issue 7
2132 AVRational time_base_q = AV_TIME_BASE_Q;
2133 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2134 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2135 } else if (pkt->duration) {
2136 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2137 } else if(ist->dec_ctx->time_base.num != 0) {
2138 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
2139 ist->next_dts += ((int64_t)AV_TIME_BASE *
2140 ist->dec_ctx->time_base.num * ticks) /
2141 ist->dec_ctx->time_base.den;
2145 ist->pts = ist->dts;
2146 ist->next_pts = ist->next_dts;
2148 for (i = 0; pkt && i < nb_output_streams; i++) {
2149 OutputStream *ost = output_streams[i];
2151 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2154 do_streamcopy(ist, ost, pkt);
2160 static void print_sdp(void)
2164 AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2168 for (i = 0; i < nb_output_files; i++)
2169 avc[i] = output_files[i]->ctx;
2171 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2172 printf("SDP:\n%s\n", sdp);
2177 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
2180 for (i = 0; hwaccels[i].name; i++)
2181 if (hwaccels[i].pix_fmt == pix_fmt)
2182 return &hwaccels[i];
2186 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2188 InputStream *ist = s->opaque;
2189 const enum AVPixelFormat *p;
2192 for (p = pix_fmts; *p != -1; p++) {
2193 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2194 const HWAccel *hwaccel;
2196 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2199 hwaccel = get_hwaccel(*p);
2201 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2202 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2205 ret = hwaccel->init(s);
2207 if (ist->hwaccel_id == hwaccel->id) {
2208 av_log(NULL, AV_LOG_FATAL,
2209 "%s hwaccel requested for input stream #%d:%d, "
2210 "but cannot be initialized.\n", hwaccel->name,
2211 ist->file_index, ist->st->index);
2216 ist->active_hwaccel_id = hwaccel->id;
2217 ist->hwaccel_pix_fmt = *p;
2224 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
2226 InputStream *ist = s->opaque;
2228 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2229 return ist->hwaccel_get_buffer(s, frame, flags);
2231 return avcodec_default_get_buffer2(s, frame, flags);
2234 static int init_input_stream(int ist_index, char *error, int error_len)
2237 InputStream *ist = input_streams[ist_index];
2239 if (ist->decoding_needed) {
2240 AVCodec *codec = ist->dec;
2242 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2243 avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index);
2244 return AVERROR(EINVAL);
2247 ist->dec_ctx->opaque = ist;
2248 ist->dec_ctx->get_format = get_format;
2249 ist->dec_ctx->get_buffer2 = get_buffer;
2250 ist->dec_ctx->thread_safe_callbacks = 1;
2252 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
2254 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2255 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2256 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
2257 if (ret == AVERROR_EXPERIMENTAL)
2258 abort_codec_experimental(codec, 0);
2260 snprintf(error, error_len,
2261 "Error while opening decoder for input stream "
2263 ist->file_index, ist->st->index, av_err2str(ret));
2266 assert_avoptions(ist->decoder_opts);
2269 ist->next_pts = AV_NOPTS_VALUE;
2270 ist->next_dts = AV_NOPTS_VALUE;
2275 static InputStream *get_input_stream(OutputStream *ost)
2277 if (ost->source_index >= 0)
2278 return input_streams[ost->source_index];
2282 static int compare_int64(const void *a, const void *b)
2284 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2285 return va < vb ? -1 : va > vb ? +1 : 0;
2288 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2289 AVCodecContext *avctx)
2292 int n = 1, i, size, index = 0;
2295 for (p = kf; *p; p++)
2299 pts = av_malloc_array(size, sizeof(*pts));
2301 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2306 for (i = 0; i < n; i++) {
2307 char *next = strchr(p, ',');
2312 if (!memcmp(p, "chapters", 8)) {
2314 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2317 if (avf->nb_chapters > INT_MAX - size ||
2318 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2320 av_log(NULL, AV_LOG_FATAL,
2321 "Could not allocate forced key frames array.\n");
2324 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2325 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2327 for (j = 0; j < avf->nb_chapters; j++) {
2328 AVChapter *c = avf->chapters[j];
2329 av_assert1(index < size);
2330 pts[index++] = av_rescale_q(c->start, c->time_base,
2331 avctx->time_base) + t;
2336 t = parse_time_or_die("force_key_frames", p, 1);
2337 av_assert1(index < size);
2338 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2345 av_assert0(index == size);
2346 qsort(pts, size, sizeof(*pts), compare_int64);
2347 ost->forced_kf_count = size;
2348 ost->forced_kf_pts = pts;
2351 static void report_new_stream(int input_index, AVPacket *pkt)
2353 InputFile *file = input_files[input_index];
2354 AVStream *st = file->ctx->streams[pkt->stream_index];
2356 if (pkt->stream_index < file->nb_streams_warn)
2358 av_log(file->ctx, AV_LOG_WARNING,
2359 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2360 av_get_media_type_string(st->codec->codec_type),
2361 input_index, pkt->stream_index,
2362 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2363 file->nb_streams_warn = pkt->stream_index + 1;
2366 static void set_encoder_id(OutputFile *of, OutputStream *ost)
2368 AVDictionaryEntry *e;
2370 uint8_t *encoder_string;
2371 int encoder_string_len;
2372 int format_flags = 0;
2373 int codec_flags = 0;
2375 if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2378 e = av_dict_get(of->opts, "fflags", NULL, 0);
2380 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2383 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2385 e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2387 const AVOption *o = av_opt_find(ost->st->codec, "flags", NULL, 0, 0);
2390 av_opt_eval_flags(ost->st->codec, o, e->value, &codec_flags);
2393 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2394 encoder_string = av_mallocz(encoder_string_len);
2395 if (!encoder_string)
2398 if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2399 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2401 av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2402 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2403 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2404 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
2407 static int transcode_init(void)
2409 int ret = 0, i, j, k;
2410 AVFormatContext *oc;
2416 for (i = 0; i < nb_filtergraphs; i++) {
2417 FilterGraph *fg = filtergraphs[i];
2418 for (j = 0; j < fg->nb_outputs; j++) {
2419 OutputFilter *ofilter = fg->outputs[j];
2420 if (!ofilter->ost || ofilter->ost->source_index >= 0)
2422 if (fg->nb_inputs != 1)
2424 for (k = nb_input_streams-1; k >= 0 ; k--)
2425 if (fg->inputs[0]->ist == input_streams[k])
2427 ofilter->ost->source_index = k;
2431 /* init framerate emulation */
2432 for (i = 0; i < nb_input_files; i++) {
2433 InputFile *ifile = input_files[i];
2434 if (ifile->rate_emu)
2435 for (j = 0; j < ifile->nb_streams; j++)
2436 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2439 /* output stream init */
2440 for (i = 0; i < nb_output_files; i++) {
2441 oc = output_files[i]->ctx;
2442 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2443 av_dump_format(oc, i, oc->filename, 1);
2444 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2445 return AVERROR(EINVAL);
2449 /* init complex filtergraphs */
2450 for (i = 0; i < nb_filtergraphs; i++)
2451 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2454 /* for each output stream, we compute the right encoding parameters */
2455 for (i = 0; i < nb_output_streams; i++) {
2456 AVCodecContext *enc_ctx;
2457 AVCodecContext *dec_ctx = NULL;
2458 ost = output_streams[i];
2459 oc = output_files[ost->file_index]->ctx;
2460 ist = get_input_stream(ost);
2462 if (ost->attachment_filename)
2465 enc_ctx = ost->st->codec;
2468 dec_ctx = ist->dec_ctx;
2470 ost->st->disposition = ist->st->disposition;
2471 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2472 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2474 for (j=0; j<oc->nb_streams; j++) {
2475 AVStream *st = oc->streams[j];
2476 if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2479 if (j == oc->nb_streams)
2480 if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2481 ost->st->disposition = AV_DISPOSITION_DEFAULT;
2484 if (ost->stream_copy) {
2486 uint64_t extra_size;
2488 av_assert0(ist && !ost->filter);
2490 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2492 if (extra_size > INT_MAX) {
2493 return AVERROR(EINVAL);
2496 /* if stream_copy is selected, no need to decode or encode */
2497 enc_ctx->codec_id = dec_ctx->codec_id;
2498 enc_ctx->codec_type = dec_ctx->codec_type;
2500 if (!enc_ctx->codec_tag) {
2501 unsigned int codec_tag;
2502 if (!oc->oformat->codec_tag ||
2503 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2504 !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2505 enc_ctx->codec_tag = dec_ctx->codec_tag;
2508 enc_ctx->bit_rate = dec_ctx->bit_rate;
2509 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2510 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2511 enc_ctx->field_order = dec_ctx->field_order;
2512 enc_ctx->extradata = av_mallocz(extra_size);
2513 if (!enc_ctx->extradata) {
2514 return AVERROR(ENOMEM);
2516 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2517 enc_ctx->extradata_size= dec_ctx->extradata_size;
2518 enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2520 enc_ctx->time_base = ist->st->time_base;
2522 * Avi is a special case here because it supports variable fps but
2523 * having the fps and timebase differe significantly adds quite some
2526 if(!strcmp(oc->oformat->name, "avi")) {
2527 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2528 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2529 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2530 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2532 enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2533 enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2534 enc_ctx->ticks_per_frame = 2;
2535 } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2536 && av_q2d(ist->st->time_base) < 1.0/500
2538 enc_ctx->time_base = dec_ctx->time_base;
2539 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2540 enc_ctx->time_base.den *= 2;
2541 enc_ctx->ticks_per_frame = 2;
2543 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2544 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2545 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2546 && strcmp(oc->oformat->name, "f4v")
2548 if( copy_tb<0 && dec_ctx->time_base.den
2549 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2550 && av_q2d(ist->st->time_base) < 1.0/500
2552 enc_ctx->time_base = dec_ctx->time_base;
2553 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2556 if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2557 && dec_ctx->time_base.num < dec_ctx->time_base.den
2558 && dec_ctx->time_base.num > 0
2559 && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2560 enc_ctx->time_base = dec_ctx->time_base;
2563 if (ist && !ost->frame_rate.num)
2564 ost->frame_rate = ist->framerate;
2565 if(ost->frame_rate.num)
2566 enc_ctx->time_base = av_inv_q(ost->frame_rate);
2568 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2569 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2571 ost->parser = av_parser_init(enc_ctx->codec_id);
2573 switch (enc_ctx->codec_type) {
2574 case AVMEDIA_TYPE_AUDIO:
2575 if (audio_volume != 256) {
2576 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2579 enc_ctx->channel_layout = dec_ctx->channel_layout;
2580 enc_ctx->sample_rate = dec_ctx->sample_rate;
2581 enc_ctx->channels = dec_ctx->channels;
2582 enc_ctx->frame_size = dec_ctx->frame_size;
2583 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2584 enc_ctx->block_align = dec_ctx->block_align;
2585 enc_ctx->delay = dec_ctx->delay;
2586 if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2587 enc_ctx->block_align= 0;
2588 if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2589 enc_ctx->block_align= 0;
2591 case AVMEDIA_TYPE_VIDEO:
2592 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2593 enc_ctx->width = dec_ctx->width;
2594 enc_ctx->height = dec_ctx->height;
2595 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2596 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2598 av_mul_q(ost->frame_aspect_ratio,
2599 (AVRational){ enc_ctx->height, enc_ctx->width });
2600 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2601 "with stream copy may produce invalid files\n");
2603 else if (ist->st->sample_aspect_ratio.num)
2604 sar = ist->st->sample_aspect_ratio;
2606 sar = dec_ctx->sample_aspect_ratio;
2607 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2608 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2610 case AVMEDIA_TYPE_SUBTITLE:
2611 enc_ctx->width = dec_ctx->width;
2612 enc_ctx->height = dec_ctx->height;
2614 case AVMEDIA_TYPE_DATA:
2615 case AVMEDIA_TYPE_ATTACHMENT:
2622 ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2624 /* should only happen when a default codec is not present. */
2625 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2626 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2627 ret = AVERROR(EINVAL);
2632 ist->decoding_needed++;
2633 ost->encoding_needed = 1;
2635 set_encoder_id(output_files[ost->file_index], ost);
2638 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2639 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2641 fg = init_simple_filtergraph(ist, ost);
2642 if (configure_filtergraph(fg)) {
2643 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2648 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2649 if (ost->filter && !ost->frame_rate.num)
2650 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2651 if (ist && !ost->frame_rate.num)
2652 ost->frame_rate = ist->framerate;
2653 if (ist && !ost->frame_rate.num)
2654 ost->frame_rate = ist->st->r_frame_rate;
2655 if (ist && !ost->frame_rate.num) {
2656 ost->frame_rate = (AVRational){25, 1};
2657 av_log(NULL, AV_LOG_WARNING,
2659 "about the input framerate is available. Falling "
2660 "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2661 "if you want a different framerate.\n",
2662 ost->file_index, ost->index);
2664 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2665 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2666 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2667 ost->frame_rate = ost->enc->supported_framerates[idx];
2669 if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2670 av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2671 ost->frame_rate.num, ost->frame_rate.den, 65535);
2675 switch (enc_ctx->codec_type) {
2676 case AVMEDIA_TYPE_AUDIO:
2677 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2678 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2679 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2680 enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2681 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2683 case AVMEDIA_TYPE_VIDEO:
2684 enc_ctx->time_base = av_inv_q(ost->frame_rate);
2685 if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2686 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2687 if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2688 && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2689 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2690 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2692 for (j = 0; j < ost->forced_kf_count; j++)
2693 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2695 enc_ctx->time_base);
2697 enc_ctx->width = ost->filter->filter->inputs[0]->w;
2698 enc_ctx->height = ost->filter->filter->inputs[0]->h;
2699 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2700 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2701 av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2702 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2703 if (!strncmp(ost->enc->name, "libx264", 7) &&
2704 enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2705 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2706 av_log(NULL, AV_LOG_WARNING,
2707 "No pixel format specified, %s for H.264 encoding chosen.\n"
2708 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2709 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2710 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2711 enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2712 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2713 av_log(NULL, AV_LOG_WARNING,
2714 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2715 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2716 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2717 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2719 ost->st->avg_frame_rate = ost->frame_rate;
2722 enc_ctx->width != dec_ctx->width ||
2723 enc_ctx->height != dec_ctx->height ||
2724 enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2725 enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2728 if (ost->forced_keyframes) {
2729 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2730 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2731 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2733 av_log(NULL, AV_LOG_ERROR,
2734 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2737 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2738 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2739 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2740 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2742 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2746 case AVMEDIA_TYPE_SUBTITLE:
2747 enc_ctx->time_base = (AVRational){1, 1000};
2748 if (!enc_ctx->width) {
2749 enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2750 enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2758 if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2759 char logfilename[1024];
2762 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2763 ost->logfile_prefix ? ost->logfile_prefix :
2764 DEFAULT_PASS_LOGFILENAME_PREFIX,
2766 if (!strcmp(ost->enc->name, "libx264")) {
2767 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2769 if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2771 size_t logbuffer_size;
2772 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2773 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2777 enc_ctx->stats_in = logbuffer;
2779 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2780 f = av_fopen_utf8(logfilename, "wb");
2782 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2783 logfilename, strerror(errno));
2793 /* open each encoder */
2794 for (i = 0; i < nb_output_streams; i++) {
2795 ost = output_streams[i];
2796 if (ost->encoding_needed) {
2797 AVCodec *codec = ost->enc;
2798 AVCodecContext *dec = NULL;
2800 if ((ist = get_input_stream(ost)))
2802 if (dec && dec->subtitle_header) {
2803 /* ASS code assumes this buffer is null terminated so add extra byte. */
2804 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2805 if (!ost->st->codec->subtitle_header) {
2806 ret = AVERROR(ENOMEM);
2809 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2810 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2812 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2813 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2814 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
2815 if (ret == AVERROR_EXPERIMENTAL)
2816 abort_codec_experimental(codec, 1);
2817 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2818 ost->file_index, ost->index);
2821 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2822 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2823 av_buffersink_set_frame_size(ost->filter->filter,
2824 ost->st->codec->frame_size);
2825 assert_avoptions(ost->encoder_opts);
2826 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2827 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2828 " It takes bits/s as argument, not kbits/s\n");
2830 av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
2834 /* init input streams */
2835 for (i = 0; i < nb_input_streams; i++)
2836 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2837 for (i = 0; i < nb_output_streams; i++) {
2838 ost = output_streams[i];
2839 avcodec_close(ost->st->codec);
2844 /* discard unused programs */
2845 for (i = 0; i < nb_input_files; i++) {
2846 InputFile *ifile = input_files[i];
2847 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2848 AVProgram *p = ifile->ctx->programs[j];
2849 int discard = AVDISCARD_ALL;
2851 for (k = 0; k < p->nb_stream_indexes; k++)
2852 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2853 discard = AVDISCARD_DEFAULT;
2856 p->discard = discard;
2860 /* open files and write file headers */
2861 for (i = 0; i < nb_output_files; i++) {
2862 oc = output_files[i]->ctx;
2863 oc->interrupt_callback = int_cb;
2864 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2865 snprintf(error, sizeof(error),
2866 "Could not write header for output file #%d "
2867 "(incorrect codec parameters ?): %s",
2868 i, av_err2str(ret));
2869 ret = AVERROR(EINVAL);
2872 // assert_avoptions(output_files[i]->opts);
2873 if (strcmp(oc->oformat->name, "rtp")) {
2879 /* dump the file output parameters - cannot be done before in case
2881 for (i = 0; i < nb_output_files; i++) {
2882 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2885 /* dump the stream mapping */
2886 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2887 for (i = 0; i < nb_input_streams; i++) {
2888 ist = input_streams[i];
2890 for (j = 0; j < ist->nb_filters; j++) {
2891 if (ist->filters[j]->graph->graph_desc) {
2892 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2893 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2894 ist->filters[j]->name);
2895 if (nb_filtergraphs > 1)
2896 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2897 av_log(NULL, AV_LOG_INFO, "\n");
2902 for (i = 0; i < nb_output_streams; i++) {
2903 ost = output_streams[i];
2905 if (ost->attachment_filename) {
2906 /* an attached file */
2907 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2908 ost->attachment_filename, ost->file_index, ost->index);
2912 if (ost->filter && ost->filter->graph->graph_desc) {
2913 /* output from a complex graph */
2914 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2915 if (nb_filtergraphs > 1)
2916 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2918 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2919 ost->index, ost->enc ? ost->enc->name : "?");
2923 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2924 input_streams[ost->source_index]->file_index,
2925 input_streams[ost->source_index]->st->index,
2928 if (ost->sync_ist != input_streams[ost->source_index])
2929 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2930 ost->sync_ist->file_index,
2931 ost->sync_ist->st->index);
2932 if (ost->stream_copy)
2933 av_log(NULL, AV_LOG_INFO, " (copy)");
2935 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2936 input_streams[ost->source_index]->dec->name : "?",
2937 ost->enc ? ost->enc->name : "?");
2938 av_log(NULL, AV_LOG_INFO, "\n");
2942 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2950 transcode_init_done = 1;
2955 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2956 static int need_output(void)
2960 for (i = 0; i < nb_output_streams; i++) {
2961 OutputStream *ost = output_streams[i];
2962 OutputFile *of = output_files[ost->file_index];
2963 AVFormatContext *os = output_files[ost->file_index]->ctx;
2965 if (ost->finished ||
2966 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2968 if (ost->frame_number >= ost->max_frames) {
2970 for (j = 0; j < of->ctx->nb_streams; j++)
2971 close_output_stream(output_streams[of->ost_index + j]);
2982 * Select the output stream to process.
2984 * @return selected output stream, or NULL if none available
2986 static OutputStream *choose_output(void)
2989 int64_t opts_min = INT64_MAX;
2990 OutputStream *ost_min = NULL;
2992 for (i = 0; i < nb_output_streams; i++) {
2993 OutputStream *ost = output_streams[i];
2994 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2996 if (!ost->unavailable && !ost->finished && opts < opts_min) {
3004 static int check_keyboard_interaction(int64_t cur_time)
3007 static int64_t last_time;
3008 if (received_nb_signals)
3009 return AVERROR_EXIT;
3010 /* read_key() returns 0 on EOF */
3011 if(cur_time - last_time >= 100000 && !run_as_daemon){
3013 last_time = cur_time;
3017 return AVERROR_EXIT;
3018 if (key == '+') av_log_set_level(av_log_get_level()+10);
3019 if (key == '-') av_log_set_level(av_log_get_level()-10);
3020 if (key == 's') qp_hist ^= 1;
3023 do_hex_dump = do_pkt_dump = 0;
3024 } else if(do_pkt_dump){
3028 av_log_set_level(AV_LOG_DEBUG);
3030 if (key == 'c' || key == 'C'){
3031 char buf[4096], target[64], command[256], arg[256] = {0};
3034 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3036 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3041 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3042 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3043 target, time, command, arg);
3044 for (i = 0; i < nb_filtergraphs; i++) {
3045 FilterGraph *fg = filtergraphs[i];
3048 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3049 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3050 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3051 } else if (key == 'c') {
3052 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3053 ret = AVERROR_PATCHWELCOME;
3055 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3060 av_log(NULL, AV_LOG_ERROR,
3061 "Parse error, at least 3 arguments were expected, "
3062 "only %d given in string '%s'\n", n, buf);
3065 if (key == 'd' || key == 'D'){
3068 debug = input_streams[0]->st->codec->debug<<1;
3069 if(!debug) debug = 1;
3070 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3073 if(scanf("%d", &debug)!=1)
3074 fprintf(stderr,"error parsing debug value\n");
3075 for(i=0;i<nb_input_streams;i++) {
3076 input_streams[i]->st->codec->debug = debug;
3078 for(i=0;i<nb_output_streams;i++) {
3079 OutputStream *ost = output_streams[i];
3080 ost->st->codec->debug = debug;
3082 if(debug) av_log_set_level(AV_LOG_DEBUG);
3083 fprintf(stderr,"debug=%d\n", debug);
3086 fprintf(stderr, "key function\n"
3087 "? show this help\n"
3088 "+ increase verbosity\n"
3089 "- decrease verbosity\n"
3090 "c Send command to first matching filter supporting it\n"
3091 "C Send/Que command to all matching filters\n"
3092 "D cycle through available debug modes\n"
3093 "h dump packets/hex press to cycle through the 3 states\n"
3095 "s Show QP histogram\n"
3102 static void *input_thread(void *arg)
3109 ret = av_read_frame(f->ctx, &pkt);
3111 if (ret == AVERROR(EAGAIN)) {
3116 av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3119 av_dup_packet(&pkt);
3120 ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
3122 if (ret != AVERROR_EOF)
3123 av_log(f->ctx, AV_LOG_ERROR,
3124 "Unable to send packet to main thread: %s\n",
3126 av_free_packet(&pkt);
3127 av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
3135 static void free_input_threads(void)
3139 for (i = 0; i < nb_input_files; i++) {
3140 InputFile *f = input_files[i];
3143 if (!f->in_thread_queue)
3145 av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
3146 while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
3147 av_free_packet(&pkt);
3149 pthread_join(f->thread, NULL);
3151 av_thread_message_queue_free(&f->in_thread_queue);
3155 static int init_input_threads(void)
3159 if (nb_input_files == 1)
3162 for (i = 0; i < nb_input_files; i++) {
3163 InputFile *f = input_files[i];
3165 if (f->ctx->pb ? !f->ctx->pb->seekable :
3166 strcmp(f->ctx->iformat->name, "lavfi"))
3167 f->non_blocking = 1;
3168 ret = av_thread_message_queue_alloc(&f->in_thread_queue,
3169 8, sizeof(AVPacket));
3173 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
3174 return AVERROR(ret);
3179 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3181 return av_thread_message_queue_recv(f->in_thread_queue, pkt,
3183 AV_THREAD_MESSAGE_NONBLOCK : 0);
3187 static int get_input_packet(InputFile *f, AVPacket *pkt)
3191 for (i = 0; i < f->nb_streams; i++) {
3192 InputStream *ist = input_streams[f->ist_index + i];
3193 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3194 int64_t now = av_gettime_relative() - ist->start;
3196 return AVERROR(EAGAIN);
3201 if (nb_input_files > 1)
3202 return get_input_packet_mt(f, pkt);
3204 return av_read_frame(f->ctx, pkt);
3207 static int got_eagain(void)
3210 for (i = 0; i < nb_output_streams; i++)
3211 if (output_streams[i]->unavailable)
3216 static void reset_eagain(void)
3219 for (i = 0; i < nb_input_files; i++)
3220 input_files[i]->eagain = 0;
3221 for (i = 0; i < nb_output_streams; i++)
3222 output_streams[i]->unavailable = 0;
3227 * - 0 -- one packet was read and processed
3228 * - AVERROR(EAGAIN) -- no packets were available for selected file,
3229 * this function should be called again
3230 * - AVERROR_EOF -- this function should not be called again
3232 static int process_input(int file_index)
3234 InputFile *ifile = input_files[file_index];
3235 AVFormatContext *is;
3241 ret = get_input_packet(ifile, &pkt);
3243 if (ret == AVERROR(EAGAIN)) {
3248 if (ret != AVERROR_EOF) {
3249 print_error(is->filename, ret);
3253 ifile->eof_reached = 1;
3255 for (i = 0; i < ifile->nb_streams; i++) {
3256 ist = input_streams[ifile->ist_index + i];
3257 if (ist->decoding_needed)
3258 output_packet(ist, NULL);
3260 /* mark all outputs that don't go through lavfi as finished */
3261 for (j = 0; j < nb_output_streams; j++) {
3262 OutputStream *ost = output_streams[j];
3264 if (ost->source_index == ifile->ist_index + i &&
3265 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3266 close_output_stream(ost);
3270 return AVERROR(EAGAIN);
3276 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3277 is->streams[pkt.stream_index]);
3279 /* the following test is needed in case new streams appear
3280 dynamically in stream : we ignore them */
3281 if (pkt.stream_index >= ifile->nb_streams) {
3282 report_new_stream(file_index, &pkt);
3283 goto discard_packet;
3286 ist = input_streams[ifile->ist_index + pkt.stream_index];
3288 ist->data_size += pkt.size;
3292 goto discard_packet;
3295 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3296 "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",
3297 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
3298 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
3299 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
3300 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3301 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3302 av_ts2str(input_files[ist->file_index]->ts_offset),
3303 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3306 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3307 int64_t stime, stime2;
3308 // Correcting starttime based on the enabled streams
3309 // 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.
3310 // so we instead do it here as part of discontinuity handling
3311 if ( ist->next_dts == AV_NOPTS_VALUE
3312 && ifile->ts_offset == -is->start_time
3313 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3314 int64_t new_start_time = INT64_MAX;
3315 for (i=0; i<is->nb_streams; i++) {
3316 AVStream *st = is->streams[i];
3317 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3319 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3321 if (new_start_time > is->start_time) {
3322 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3323 ifile->ts_offset = -new_start_time;
3327 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3328 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3329 ist->wrap_correction_done = 1;
3331 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3332 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3333 ist->wrap_correction_done = 0;
3335 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3336 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3337 ist->wrap_correction_done = 0;
3341 /* add the stream-global side data to the first packet */
3342 if (ist->nb_packets == 1)
3343 if (ist->st->nb_side_data)
3344 av_packet_split_side_data(&pkt);
3345 for (i = 0; i < ist->st->nb_side_data; i++) {
3346 AVPacketSideData *src_sd = &ist->st->side_data[i];
3349 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3352 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3356 memcpy(dst_data, src_sd->data, src_sd->size);
3359 if (pkt.dts != AV_NOPTS_VALUE)
3360 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3361 if (pkt.pts != AV_NOPTS_VALUE)
3362 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3364 if (pkt.pts != AV_NOPTS_VALUE)
3365 pkt.pts *= ist->ts_scale;
3366 if (pkt.dts != AV_NOPTS_VALUE)
3367 pkt.dts *= ist->ts_scale;
3369 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3370 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3371 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3372 int64_t delta = pkt_dts - ifile->last_ts;
3373 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3374 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3375 ist->dec_ctx->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3376 ifile->ts_offset -= delta;
3377 av_log(NULL, AV_LOG_DEBUG,
3378 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3379 delta, ifile->ts_offset);
3380 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3381 if (pkt.pts != AV_NOPTS_VALUE)
3382 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3386 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3388 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3389 int64_t delta = pkt_dts - ist->next_dts;
3390 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3391 if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3392 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3393 ist->dec_ctx->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3394 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3395 ifile->ts_offset -= delta;
3396 av_log(NULL, AV_LOG_DEBUG,
3397 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3398 delta, ifile->ts_offset);
3399 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3400 if (pkt.pts != AV_NOPTS_VALUE)
3401 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3404 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3405 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->dec_ctx->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3406 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3407 pkt.dts = AV_NOPTS_VALUE;
3409 if (pkt.pts != AV_NOPTS_VALUE){
3410 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3411 delta = pkt_pts - ist->next_dts;
3412 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3413 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->dec_ctx->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3414 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3415 pkt.pts = AV_NOPTS_VALUE;
3421 if (pkt.dts != AV_NOPTS_VALUE)
3422 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3425 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",
3426 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
3427 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3428 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3429 av_ts2str(input_files[ist->file_index]->ts_offset),
3430 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3433 sub2video_heartbeat(ist, pkt.pts);
3435 ret = output_packet(ist, &pkt);
3437 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3438 ist->file_index, ist->st->index, av_err2str(ret));
3444 av_free_packet(&pkt);
3450 * Perform a step of transcoding for the specified filter graph.
3452 * @param[in] graph filter graph to consider
3453 * @param[out] best_ist input stream where a frame would allow to continue
3454 * @return 0 for success, <0 for error
3456 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3459 int nb_requests, nb_requests_max = 0;
3460 InputFilter *ifilter;
3464 ret = avfilter_graph_request_oldest(graph->graph);
3466 return reap_filters();
3468 if (ret == AVERROR_EOF) {
3469 ret = reap_filters();
3470 for (i = 0; i < graph->nb_outputs; i++)
3471 close_output_stream(graph->outputs[i]->ost);
3474 if (ret != AVERROR(EAGAIN))
3477 for (i = 0; i < graph->nb_inputs; i++) {
3478 ifilter = graph->inputs[i];
3480 if (input_files[ist->file_index]->eagain ||
3481 input_files[ist->file_index]->eof_reached)
3483 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3484 if (nb_requests > nb_requests_max) {
3485 nb_requests_max = nb_requests;
3491 for (i = 0; i < graph->nb_outputs; i++)
3492 graph->outputs[i]->ost->unavailable = 1;
3498 * Run a single step of transcoding.
3500 * @return 0 for success, <0 for error
3502 static int transcode_step(void)
3508 ost = choose_output();
3515 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3520 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3525 av_assert0(ost->source_index >= 0);
3526 ist = input_streams[ost->source_index];
3529 ret = process_input(ist->file_index);
3530 if (ret == AVERROR(EAGAIN)) {
3531 if (input_files[ist->file_index]->eagain)
3532 ost->unavailable = 1;
3536 return ret == AVERROR_EOF ? 0 : ret;
3538 return reap_filters();
3542 * The following code is the main loop of the file converter
3544 static int transcode(void)
3547 AVFormatContext *os;
3550 int64_t timer_start;
3552 ret = transcode_init();
3556 if (stdin_interaction) {
3557 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3560 timer_start = av_gettime_relative();
3563 if ((ret = init_input_threads()) < 0)
3567 while (!received_sigterm) {
3568 int64_t cur_time= av_gettime_relative();
3570 /* if 'q' pressed, exits */
3571 if (stdin_interaction)
3572 if (check_keyboard_interaction(cur_time) < 0)
3575 /* check if there's any stream where output is still needed */
3576 if (!need_output()) {
3577 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3581 ret = transcode_step();
3583 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3586 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3590 /* dump report by using the output first video and audio streams */
3591 print_report(0, timer_start, cur_time);
3594 free_input_threads();
3597 /* at the end of stream, we must flush the decoder buffers */
3598 for (i = 0; i < nb_input_streams; i++) {
3599 ist = input_streams[i];
3600 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3601 output_packet(ist, NULL);
3608 /* write the trailer if needed and close file */
3609 for (i = 0; i < nb_output_files; i++) {
3610 os = output_files[i]->ctx;
3611 av_write_trailer(os);
3614 /* dump report by using the first video and audio streams */
3615 print_report(1, timer_start, av_gettime_relative());
3617 /* close each encoder */
3618 for (i = 0; i < nb_output_streams; i++) {
3619 ost = output_streams[i];
3620 if (ost->encoding_needed) {
3621 av_freep(&ost->st->codec->stats_in);
3622 avcodec_close(ost->st->codec);
3626 /* close each decoder */
3627 for (i = 0; i < nb_input_streams; i++) {
3628 ist = input_streams[i];
3629 if (ist->decoding_needed) {
3630 avcodec_close(ist->dec_ctx);
3631 if (ist->hwaccel_uninit)
3632 ist->hwaccel_uninit(ist->dec_ctx);
3641 free_input_threads();
3644 if (output_streams) {
3645 for (i = 0; i < nb_output_streams; i++) {
3646 ost = output_streams[i];
3648 if (ost->stream_copy)
3649 av_freep(&ost->st->codec->extradata);
3651 fclose(ost->logfile);
3652 ost->logfile = NULL;
3654 av_freep(&ost->st->codec->subtitle_header);
3655 av_freep(&ost->forced_kf_pts);
3656 av_freep(&ost->apad);
3657 av_dict_free(&ost->encoder_opts);
3658 av_dict_free(&ost->swr_opts);
3659 av_dict_free(&ost->resample_opts);
3667 static int64_t getutime(void)
3670 struct rusage rusage;
3672 getrusage(RUSAGE_SELF, &rusage);
3673 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3674 #elif HAVE_GETPROCESSTIMES
3676 FILETIME c, e, k, u;
3677 proc = GetCurrentProcess();
3678 GetProcessTimes(proc, &c, &e, &k, &u);
3679 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3681 return av_gettime();
3685 static int64_t getmaxrss(void)
3687 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3688 struct rusage rusage;
3689 getrusage(RUSAGE_SELF, &rusage);
3690 return (int64_t)rusage.ru_maxrss * 1024;
3691 #elif HAVE_GETPROCESSMEMORYINFO
3693 PROCESS_MEMORY_COUNTERS memcounters;
3694 proc = GetCurrentProcess();
3695 memcounters.cb = sizeof(memcounters);
3696 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3697 return memcounters.PeakPagefileUsage;
3703 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3707 int main(int argc, char **argv)
3712 register_exit(ffmpeg_cleanup);
3714 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3716 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3717 parse_loglevel(argc, argv, options);
3719 if(argc>1 && !strcmp(argv[1], "-d")){
3721 av_log_set_callback(log_callback_null);
3726 avcodec_register_all();
3728 avdevice_register_all();
3730 avfilter_register_all();
3732 avformat_network_init();
3734 show_banner(argc, argv, options);
3738 /* parse options and open all input/output files */
3739 ret = ffmpeg_parse_options(argc, argv);
3743 if (nb_output_files <= 0 && nb_input_files == 0) {
3745 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3749 /* file converter / grab */
3750 if (nb_output_files <= 0) {
3751 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3755 // if (nb_input_files == 0) {
3756 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3760 current_time = ti = getutime();
3761 if (transcode() < 0)
3763 ti = getutime() - ti;
3765 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3767 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3768 decode_error_stat[0], decode_error_stat[1]);
3769 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3772 exit_program(received_nb_signals ? 255 : main_return_code);
3773 return main_return_code;