2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libswresample/swresample.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/channel_layout.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/samplefmt.h"
49 #include "libavutil/colorspace.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/intreadwrite.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/mathematics.h"
54 #include "libavutil/pixdesc.h"
55 #include "libavutil/avstring.h"
56 #include "libavutil/libm.h"
57 #include "libavutil/imgutils.h"
58 #include "libavutil/timestamp.h"
59 #include "libavutil/bprint.h"
60 #include "libavutil/time.h"
61 #include "libavformat/os_support.h"
63 #include "libavformat/ffm.h" // not public API
65 # include "libavfilter/avcodec.h"
66 # include "libavfilter/avfilter.h"
67 # include "libavfilter/avfiltergraph.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 static void do_video_stats(OutputStream *ost, int frame_size);
113 static int64_t getutime(void);
115 static int run_as_daemon = 0;
116 static int64_t video_size = 0;
117 static int64_t audio_size = 0;
118 static int64_t subtitle_size = 0;
119 static int64_t extra_size = 0;
120 static int nb_frames_dup = 0;
121 static int nb_frames_drop = 0;
123 static int current_time;
124 AVIOContext *progress_avio = NULL;
126 static uint8_t *subtitle_out;
129 /* signal to input threads that they should exit; set by the main thread */
130 static int transcoding_finished;
133 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
135 InputStream **input_streams = NULL;
136 int nb_input_streams = 0;
137 InputFile **input_files = NULL;
138 int nb_input_files = 0;
140 OutputStream **output_streams = NULL;
141 int nb_output_streams = 0;
142 OutputFile **output_files = NULL;
143 int nb_output_files = 0;
145 FilterGraph **filtergraphs;
150 /* init terminal so that we can grab keys */
151 static struct termios oldtty;
152 static int restore_tty;
157 Convert subtitles to video with alpha to insert them in filter graphs.
158 This is a temporary solution until libavfilter gets real subtitles support.
163 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
166 uint32_t *pal, *dst2;
170 if (r->type != SUBTITLE_BITMAP) {
171 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
174 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
175 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
179 dst += r->y * dst_linesize + r->x * 4;
180 src = r->pict.data[0];
181 pal = (uint32_t *)r->pict.data[1];
182 for (y = 0; y < r->h; y++) {
183 dst2 = (uint32_t *)dst;
185 for (x = 0; x < r->w; x++)
186 *(dst2++) = pal[*(src2++)];
188 src += r->pict.linesize[0];
192 static void sub2video_push_ref(InputStream *ist, int64_t pts)
194 AVFilterBufferRef *ref = ist->sub2video.ref;
197 ist->sub2video.last_pts = ref->pts = pts;
198 for (i = 0; i < ist->nb_filters; i++)
199 av_buffersrc_add_ref(ist->filters[i]->filter,
200 avfilter_ref_buffer(ref, ~0),
201 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
202 AV_BUFFERSRC_FLAG_NO_COPY |
203 AV_BUFFERSRC_FLAG_PUSH);
206 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
208 int w = ist->sub2video.w, h = ist->sub2video.h;
209 AVFilterBufferRef *ref = ist->sub2video.ref;
213 int64_t pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ist->st->time_base);
218 dst_linesize = ref->linesize[0];
219 memset(dst, 0, h * dst_linesize);
220 for (i = 0; i < sub->num_rects; i++)
221 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
222 sub2video_push_ref(ist, pts);
225 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
227 InputFile *infile = input_files[ist->file_index];
231 /* When a frame is read from a file, examine all sub2video streams in
232 the same file and send the sub2video frame again. Otherwise, decoded
233 video frames could be accumulating in the filter graph while a filter
234 (possibly overlay) is desperately waiting for a subtitle frame. */
235 for (i = 0; i < infile->nb_streams; i++) {
236 InputStream *ist2 = input_streams[infile->ist_index + i];
237 if (!ist2->sub2video.ref)
239 /* subtitles seem to be usually muxed ahead of other streams;
240 if not, substracting a larger time here is necessary */
241 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
242 /* do not send the heartbeat frame if the subtitle is already ahead */
243 if (pts2 <= ist2->sub2video.last_pts)
245 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
246 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
248 sub2video_push_ref(ist2, pts2);
252 static void sub2video_flush(InputStream *ist)
256 for (i = 0; i < ist->nb_filters; i++)
257 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
260 /* end of sub2video hack */
264 av_log(NULL, AV_LOG_QUIET, "%s", "");
267 tcsetattr (0, TCSANOW, &oldtty);
271 static volatile int received_sigterm = 0;
272 static volatile int received_nb_signals = 0;
275 sigterm_handler(int sig)
277 received_sigterm = sig;
278 received_nb_signals++;
280 if(received_nb_signals > 3)
291 istty = isatty(0) && isatty(2);
293 if (istty && tcgetattr (0, &tty) == 0) {
298 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
299 |INLCR|IGNCR|ICRNL|IXON);
300 tty.c_oflag |= OPOST;
301 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
302 tty.c_cflag &= ~(CSIZE|PARENB);
307 tcsetattr (0, TCSANOW, &tty);
309 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
312 avformat_network_deinit();
314 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
315 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
317 signal(SIGXCPU, sigterm_handler);
321 /* read a key without blocking */
322 static int read_key(void)
334 n = select(1, &rfds, NULL, NULL, &tv);
343 # if HAVE_PEEKNAMEDPIPE
345 static HANDLE input_handle;
348 input_handle = GetStdHandle(STD_INPUT_HANDLE);
349 is_pipe = !GetConsoleMode(input_handle, &dw);
352 if (stdin->_cnt > 0) {
357 /* When running under a GUI, you will end here. */
358 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
375 static int decode_interrupt_cb(void *ctx)
377 return received_nb_signals > 1;
380 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
382 static void exit_program(void)
386 for (i = 0; i < nb_filtergraphs; i++) {
387 avfilter_graph_free(&filtergraphs[i]->graph);
388 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
389 av_freep(&filtergraphs[i]->inputs[j]->name);
390 av_freep(&filtergraphs[i]->inputs[j]);
392 av_freep(&filtergraphs[i]->inputs);
393 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
394 av_freep(&filtergraphs[i]->outputs[j]->name);
395 av_freep(&filtergraphs[i]->outputs[j]);
397 av_freep(&filtergraphs[i]->outputs);
398 av_freep(&filtergraphs[i]);
400 av_freep(&filtergraphs);
402 av_freep(&subtitle_out);
405 for (i = 0; i < nb_output_files; i++) {
406 AVFormatContext *s = output_files[i]->ctx;
407 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
409 avformat_free_context(s);
410 av_dict_free(&output_files[i]->opts);
411 av_freep(&output_files[i]);
413 for (i = 0; i < nb_output_streams; i++) {
414 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
416 AVBitStreamFilterContext *next = bsfc->next;
417 av_bitstream_filter_close(bsfc);
420 output_streams[i]->bitstream_filters = NULL;
421 avcodec_free_frame(&output_streams[i]->filtered_frame);
423 av_freep(&output_streams[i]->forced_keyframes);
424 av_freep(&output_streams[i]->avfilter);
425 av_freep(&output_streams[i]->logfile_prefix);
426 av_freep(&output_streams[i]);
428 for (i = 0; i < nb_input_files; i++) {
429 avformat_close_input(&input_files[i]->ctx);
430 av_freep(&input_files[i]);
432 for (i = 0; i < nb_input_streams; i++) {
433 avcodec_free_frame(&input_streams[i]->decoded_frame);
434 av_dict_free(&input_streams[i]->opts);
435 free_buffer_pool(&input_streams[i]->buffer_pool);
436 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
437 av_freep(&input_streams[i]->filters);
438 av_freep(&input_streams[i]);
443 av_free(vstats_filename);
445 av_freep(&input_streams);
446 av_freep(&input_files);
447 av_freep(&output_streams);
448 av_freep(&output_files);
453 avformat_network_deinit();
455 if (received_sigterm) {
456 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
457 (int) received_sigterm);
462 void assert_avoptions(AVDictionary *m)
464 AVDictionaryEntry *t;
465 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
466 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
471 static void abort_codec_experimental(AVCodec *c, int encoder)
476 static void update_benchmark(const char *fmt, ...)
478 if (do_benchmark_all) {
479 int64_t t = getutime();
485 vsnprintf(buf, sizeof(buf), fmt, va);
487 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
493 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
495 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
496 AVCodecContext *avctx = ost->st->codec;
499 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
500 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
501 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
503 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
504 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
505 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
506 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
507 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
508 if(pkt->pts >= pkt->dts)
509 pkt->pts = FFMAX(pkt->pts, max);
515 * Audio encoders may split the packets -- #frames in != #packets out.
516 * But there is no reordering, so we can limit the number of output packets
517 * by simply dropping them here.
518 * Counting encoded video frames needs to be done separately because of
519 * reordering, see do_video_out()
521 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
522 if (ost->frame_number >= ost->max_frames) {
530 AVPacket new_pkt = *pkt;
531 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
532 &new_pkt.data, &new_pkt.size,
533 pkt->data, pkt->size,
534 pkt->flags & AV_PKT_FLAG_KEY);
535 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
536 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
538 memcpy(t, new_pkt.data, new_pkt.size);
539 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
547 new_pkt.destruct = av_destruct_packet;
549 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
550 bsfc->filter->name, pkt->stream_index,
551 avctx->codec ? avctx->codec->name : "copy");
561 pkt->stream_index = ost->index;
564 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
565 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
566 av_get_media_type_string(ost->st->codec->codec_type),
567 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
568 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
573 ret = av_interleaved_write_frame(s, pkt);
575 print_error("av_interleaved_write_frame()", ret);
580 static void close_output_stream(OutputStream *ost)
582 OutputFile *of = output_files[ost->file_index];
587 for (i = 0; i < of->ctx->nb_streams; i++)
588 output_streams[of->ost_index + i]->finished = 1;
592 static int check_recording_time(OutputStream *ost)
594 OutputFile *of = output_files[ost->file_index];
596 if (of->recording_time != INT64_MAX &&
597 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
598 AV_TIME_BASE_Q) >= 0) {
599 close_output_stream(ost);
605 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
608 AVCodecContext *enc = ost->st->codec;
612 av_init_packet(&pkt);
616 if (!check_recording_time(ost))
619 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
620 frame->pts = ost->sync_opts;
621 ost->sync_opts = frame->pts + frame->nb_samples;
623 av_assert0(pkt.size || !pkt.data);
624 update_benchmark(NULL);
625 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
626 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
629 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
632 if (pkt.pts != AV_NOPTS_VALUE)
633 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
634 if (pkt.dts != AV_NOPTS_VALUE)
635 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
636 if (pkt.duration > 0)
637 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
640 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
641 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
642 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
643 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
646 audio_size += pkt.size;
647 write_frame(s, &pkt, ost);
649 av_free_packet(&pkt);
653 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
657 AVPicture picture_tmp;
660 dec = ist->st->codec;
662 /* deinterlace : must be done before any resize */
663 if (do_deinterlace) {
666 /* create temporary picture */
667 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
670 buf = av_malloc(size);
674 picture2 = &picture_tmp;
675 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
677 if (avpicture_deinterlace(picture2, picture,
678 dec->pix_fmt, dec->width, dec->height) < 0) {
679 /* if error, do not deinterlace */
680 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
689 if (picture != picture2)
690 *picture = *picture2;
694 static void do_subtitle_out(AVFormatContext *s,
699 int subtitle_out_max_size = 1024 * 1024;
700 int subtitle_out_size, nb, i;
705 if (sub->pts == AV_NOPTS_VALUE) {
706 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
712 enc = ost->st->codec;
715 subtitle_out = av_malloc(subtitle_out_max_size);
718 /* Note: DVB subtitle need one packet to draw them and one other
719 packet to clear them */
720 /* XXX: signal it in the codec context ? */
721 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
726 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
727 pts = sub->pts - output_files[ost->file_index]->start_time;
728 for (i = 0; i < nb; i++) {
729 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
730 if (!check_recording_time(ost))
734 // start_display_time is required to be 0
735 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
736 sub->end_display_time -= sub->start_display_time;
737 sub->start_display_time = 0;
740 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
741 subtitle_out_max_size, sub);
742 if (subtitle_out_size < 0) {
743 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
747 av_init_packet(&pkt);
748 pkt.data = subtitle_out;
749 pkt.size = subtitle_out_size;
750 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
751 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
752 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
753 /* XXX: the pts correction is handled here. Maybe handling
754 it in the codec would be better */
756 pkt.pts += 90 * sub->start_display_time;
758 pkt.pts += 90 * sub->end_display_time;
760 subtitle_size += pkt.size;
761 write_frame(s, &pkt, ost);
765 static void do_video_out(AVFormatContext *s,
769 int ret, format_video_sync;
771 AVCodecContext *enc = ost->st->codec;
773 double sync_ipts, delta;
776 InputStream *ist = NULL;
778 if (ost->source_index >= 0)
779 ist = input_streams[ost->source_index];
781 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
782 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
784 sync_ipts = in_picture->pts;
785 delta = sync_ipts - ost->sync_opts + duration;
787 /* by default, we output a single frame */
790 format_video_sync = video_sync_method;
791 if (format_video_sync == VSYNC_AUTO)
792 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
794 switch (format_video_sync) {
796 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
799 else if (delta > 1.1)
800 nb_frames = lrintf(delta);
805 else if (delta > 0.6)
806 ost->sync_opts = lrint(sync_ipts);
809 case VSYNC_PASSTHROUGH:
810 ost->sync_opts = lrint(sync_ipts);
816 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
817 if (nb_frames == 0) {
819 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
821 } else if (nb_frames > 1) {
822 if (nb_frames > dts_error_threshold * 30) {
823 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
827 nb_frames_dup += nb_frames - 1;
828 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
831 /* duplicates frame if needed */
832 for (i = 0; i < nb_frames; i++) {
833 av_init_packet(&pkt);
837 in_picture->pts = ost->sync_opts;
839 if (!check_recording_time(ost))
842 if (s->oformat->flags & AVFMT_RAWPICTURE &&
843 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
844 /* raw pictures are written as AVPicture structure to
845 avoid any copies. We support temporarily the older
847 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
848 enc->coded_frame->top_field_first = in_picture->top_field_first;
849 if (enc->coded_frame->interlaced_frame)
850 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
852 enc->field_order = AV_FIELD_PROGRESSIVE;
853 pkt.data = (uint8_t *)in_picture;
854 pkt.size = sizeof(AVPicture);
855 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
856 pkt.flags |= AV_PKT_FLAG_KEY;
858 video_size += pkt.size;
859 write_frame(s, &pkt, ost);
864 big_picture = *in_picture;
865 /* better than nothing: use input picture interlaced
867 big_picture.interlaced_frame = in_picture->interlaced_frame;
868 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
869 if (ost->top_field_first == -1)
870 big_picture.top_field_first = in_picture->top_field_first;
872 big_picture.top_field_first = !!ost->top_field_first;
875 if (big_picture.interlaced_frame) {
876 if (enc->codec->id == AV_CODEC_ID_MJPEG)
877 enc->field_order = big_picture.top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
879 enc->field_order = big_picture.top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
881 enc->field_order = AV_FIELD_PROGRESSIVE;
883 big_picture.quality = ost->st->codec->global_quality;
884 if (!enc->me_threshold)
885 big_picture.pict_type = 0;
886 if (ost->forced_kf_index < ost->forced_kf_count &&
887 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
888 big_picture.pict_type = AV_PICTURE_TYPE_I;
889 ost->forced_kf_index++;
891 update_benchmark(NULL);
892 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
893 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
895 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
900 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
901 pkt.pts = ost->sync_opts;
903 if (pkt.pts != AV_NOPTS_VALUE)
904 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
905 if (pkt.dts != AV_NOPTS_VALUE)
906 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
909 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
910 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
911 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
912 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
915 frame_size = pkt.size;
916 video_size += pkt.size;
917 write_frame(s, &pkt, ost);
918 av_free_packet(&pkt);
920 /* if two pass, output log */
921 if (ost->logfile && enc->stats_out) {
922 fprintf(ost->logfile, "%s", enc->stats_out);
928 * For video, number of frames in == number of packets out.
929 * But there may be reordering, so we can't throw away frames on encoder
930 * flush, we need to limit them here, before they go into encoder.
935 if (vstats_filename && frame_size)
936 do_video_stats(ost, frame_size);
939 static double psnr(double d)
941 return -10.0 * log(d) / log(10.0);
944 static void do_video_stats(OutputStream *ost, int frame_size)
948 double ti1, bitrate, avg_bitrate;
950 /* this is executed just the first time do_video_stats is called */
952 vstats_file = fopen(vstats_filename, "w");
959 enc = ost->st->codec;
960 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
961 frame_number = ost->frame_number;
962 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
963 if (enc->flags&CODEC_FLAG_PSNR)
964 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
966 fprintf(vstats_file,"f_size= %6d ", frame_size);
967 /* compute pts value */
968 ti1 = ost->sync_opts * av_q2d(enc->time_base);
972 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
973 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
974 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
975 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
976 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
981 * Get and encode new output from any of the filtergraphs, without causing
984 * @return 0 for success, <0 for severe errors
986 static int reap_filters(void)
988 AVFilterBufferRef *picref;
989 AVFrame *filtered_frame = NULL;
993 /* Reap all buffers present in the buffer sinks */
994 for (i = 0; i < nb_output_streams; i++) {
995 OutputStream *ost = output_streams[i];
996 OutputFile *of = output_files[ost->file_index];
1002 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1003 return AVERROR(ENOMEM);
1005 avcodec_get_frame_defaults(ost->filtered_frame);
1006 filtered_frame = ost->filtered_frame;
1009 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1010 AV_BUFFERSINK_FLAG_NO_REQUEST);
1012 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1014 av_strerror(ret, buf, sizeof(buf));
1015 av_log(NULL, AV_LOG_WARNING,
1016 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1020 frame_pts = AV_NOPTS_VALUE;
1021 if (picref->pts != AV_NOPTS_VALUE) {
1022 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1023 ost->filter->filter->inputs[0]->time_base,
1024 ost->st->codec->time_base) -
1025 av_rescale_q(of->start_time,
1027 ost->st->codec->time_base);
1029 if (of->start_time && filtered_frame->pts < 0) {
1030 avfilter_unref_buffer(picref);
1034 //if (ost->source_index >= 0)
1035 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1038 switch (ost->filter->filter->inputs[0]->type) {
1039 case AVMEDIA_TYPE_VIDEO:
1040 avfilter_copy_buf_props(filtered_frame, picref);
1041 filtered_frame->pts = frame_pts;
1042 if (!ost->frame_aspect_ratio)
1043 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1045 do_video_out(of->ctx, ost, filtered_frame);
1047 case AVMEDIA_TYPE_AUDIO:
1048 avfilter_copy_buf_props(filtered_frame, picref);
1049 filtered_frame->pts = frame_pts;
1050 do_audio_out(of->ctx, ost, filtered_frame);
1053 // TODO support subtitle filters
1057 avfilter_unref_buffer(picref);
1064 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1067 AVBPrint buf_script;
1069 AVFormatContext *oc;
1071 AVCodecContext *enc;
1072 int frame_number, vid, i;
1074 int64_t pts = INT64_MIN;
1075 static int64_t last_time = -1;
1076 static int qp_histogram[52];
1077 int hours, mins, secs, us;
1079 if (!print_stats && !is_last_report && !progress_avio)
1082 if (!is_last_report) {
1083 if (last_time == -1) {
1084 last_time = cur_time;
1087 if ((cur_time - last_time) < 500000)
1089 last_time = cur_time;
1093 oc = output_files[0]->ctx;
1095 total_size = avio_size(oc->pb);
1096 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1097 total_size = avio_tell(oc->pb);
1098 if (total_size < 0) {
1100 av_strerror(total_size, errbuf, sizeof(errbuf));
1101 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
1102 "avio_tell() failed: %s\n", errbuf);
1108 av_bprint_init(&buf_script, 0, 1);
1109 for (i = 0; i < nb_output_streams; i++) {
1111 ost = output_streams[i];
1112 enc = ost->st->codec;
1113 if (!ost->stream_copy && enc->coded_frame)
1114 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1115 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1116 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1117 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1118 ost->file_index, ost->index, q);
1120 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1121 float fps, t = (cur_time-timer_start) / 1000000.0;
1123 frame_number = ost->frame_number;
1124 fps = t > 1 ? frame_number / t : 0;
1125 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1126 frame_number, fps < 9.95, fps, q);
1127 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1128 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1129 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1130 ost->file_index, ost->index, q);
1132 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1136 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1138 for (j = 0; j < 32; j++)
1139 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1141 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1143 double error, error_sum = 0;
1144 double scale, scale_sum = 0;
1146 char type[3] = { 'Y','U','V' };
1147 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1148 for (j = 0; j < 3; j++) {
1149 if (is_last_report) {
1150 error = enc->error[j];
1151 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1153 error = enc->coded_frame->error[j];
1154 scale = enc->width * enc->height * 255.0 * 255.0;
1160 p = psnr(error / scale);
1161 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1162 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1163 ost->file_index, ost->index, type[i] | 32, p);
1165 p = psnr(error_sum / scale_sum);
1166 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1167 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1168 ost->file_index, ost->index, p);
1172 /* compute min output value */
1173 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1174 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1175 ost->st->time_base, AV_TIME_BASE_Q));
1178 secs = pts / AV_TIME_BASE;
1179 us = pts % AV_TIME_BASE;
1185 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1187 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1188 "size=%8.0fkB time=", total_size / 1024.0);
1189 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1190 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1191 (100 * us) / AV_TIME_BASE);
1192 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1193 "bitrate=%6.1fkbits/s", bitrate);
1194 av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1195 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1196 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1197 hours, mins, secs, us);
1199 if (nb_frames_dup || nb_frames_drop)
1200 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1201 nb_frames_dup, nb_frames_drop);
1202 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1203 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1205 if (print_stats || is_last_report) {
1206 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1211 if (progress_avio) {
1212 av_bprintf(&buf_script, "progress=%s\n",
1213 is_last_report ? "end" : "continue");
1214 avio_write(progress_avio, buf_script.str,
1215 FFMIN(buf_script.len, buf_script.size - 1));
1216 avio_flush(progress_avio);
1217 av_bprint_finalize(&buf_script, NULL);
1218 if (is_last_report) {
1219 avio_close(progress_avio);
1220 progress_avio = NULL;
1224 if (is_last_report) {
1225 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1226 av_log(NULL, AV_LOG_INFO, "\n");
1227 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1228 video_size / 1024.0,
1229 audio_size / 1024.0,
1230 subtitle_size / 1024.0,
1231 extra_size / 1024.0,
1232 100.0 * (total_size - raw) / raw
1234 if(video_size + audio_size + subtitle_size + extra_size == 0){
1235 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1240 static void flush_encoders(void)
1244 for (i = 0; i < nb_output_streams; i++) {
1245 OutputStream *ost = output_streams[i];
1246 AVCodecContext *enc = ost->st->codec;
1247 AVFormatContext *os = output_files[ost->file_index]->ctx;
1248 int stop_encoding = 0;
1250 if (!ost->encoding_needed)
1253 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1255 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1259 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1263 switch (ost->st->codec->codec_type) {
1264 case AVMEDIA_TYPE_AUDIO:
1265 encode = avcodec_encode_audio2;
1269 case AVMEDIA_TYPE_VIDEO:
1270 encode = avcodec_encode_video2;
1281 av_init_packet(&pkt);
1285 update_benchmark(NULL);
1286 ret = encode(enc, &pkt, NULL, &got_packet);
1287 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1289 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1293 if (ost->logfile && enc->stats_out) {
1294 fprintf(ost->logfile, "%s", enc->stats_out);
1300 if (pkt.pts != AV_NOPTS_VALUE)
1301 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1302 if (pkt.dts != AV_NOPTS_VALUE)
1303 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1304 if (pkt.duration > 0)
1305 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1306 write_frame(os, &pkt, ost);
1316 * Check whether a packet from ist should be written into ost at this time
1318 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1320 OutputFile *of = output_files[ost->file_index];
1321 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1323 if (ost->source_index != ist_index)
1326 if (of->start_time && ist->pts < of->start_time)
1332 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1334 OutputFile *of = output_files[ost->file_index];
1335 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1339 av_init_packet(&opkt);
1341 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1342 !ost->copy_initial_nonkeyframes)
1345 if (!ost->frame_number && ist->pts < of->start_time &&
1346 !ost->copy_prior_start)
1349 if (of->recording_time != INT64_MAX &&
1350 ist->pts >= of->recording_time + of->start_time) {
1351 close_output_stream(ost);
1355 /* force the input stream PTS */
1356 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1357 audio_size += pkt->size;
1358 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1359 video_size += pkt->size;
1361 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1362 subtitle_size += pkt->size;
1365 if (pkt->pts != AV_NOPTS_VALUE)
1366 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1368 opkt.pts = AV_NOPTS_VALUE;
1370 if (pkt->dts == AV_NOPTS_VALUE)
1371 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1373 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1374 opkt.dts -= ost_tb_start_time;
1376 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1377 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1379 duration = ist->st->codec->frame_size;
1380 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1381 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1382 ost->st->time_base) - ost_tb_start_time;
1385 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1386 opkt.flags = pkt->flags;
1388 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1389 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1390 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1391 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1392 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1394 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1395 opkt.destruct = av_destruct_packet;
1397 opkt.data = pkt->data;
1398 opkt.size = pkt->size;
1401 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1402 /* store AVPicture in AVPacket, as expected by the output format */
1403 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1404 opkt.data = (uint8_t *)&pict;
1405 opkt.size = sizeof(AVPicture);
1406 opkt.flags |= AV_PKT_FLAG_KEY;
1409 write_frame(of->ctx, &opkt, ost);
1410 ost->st->codec->frame_number++;
1413 static void rate_emu_sleep(InputStream *ist)
1415 if (input_files[ist->file_index]->rate_emu) {
1416 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1417 int64_t now = av_gettime() - ist->start;
1419 av_usleep(pts - now);
1423 int guess_input_channel_layout(InputStream *ist)
1425 AVCodecContext *dec = ist->st->codec;
1427 if (!dec->channel_layout) {
1428 char layout_name[256];
1430 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1431 if (!dec->channel_layout)
1433 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1434 dec->channels, dec->channel_layout);
1435 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1436 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1441 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1443 AVFrame *decoded_frame;
1444 AVCodecContext *avctx = ist->st->codec;
1445 int i, ret, resample_changed;
1446 AVRational decoded_frame_tb;
1448 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1449 return AVERROR(ENOMEM);
1450 decoded_frame = ist->decoded_frame;
1452 update_benchmark(NULL);
1453 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1454 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1456 if (ret >= 0 && avctx->sample_rate <= 0) {
1457 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1458 ret = AVERROR_INVALIDDATA;
1461 if (!*got_output || ret < 0) {
1463 for (i = 0; i < ist->nb_filters; i++)
1464 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1470 /* increment next_dts to use for the case where the input stream does not
1471 have timestamps or there are multiple frames in the packet */
1472 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1474 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1478 rate_emu_sleep(ist);
1480 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1481 ist->resample_channels != avctx->channels ||
1482 ist->resample_channel_layout != decoded_frame->channel_layout ||
1483 ist->resample_sample_rate != decoded_frame->sample_rate;
1484 if (resample_changed) {
1485 char layout1[64], layout2[64];
1487 if (!guess_input_channel_layout(ist)) {
1488 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1489 "layout for Input Stream #%d.%d\n", ist->file_index,
1493 decoded_frame->channel_layout = avctx->channel_layout;
1495 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1496 ist->resample_channel_layout);
1497 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1498 decoded_frame->channel_layout);
1500 av_log(NULL, AV_LOG_INFO,
1501 "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",
1502 ist->file_index, ist->st->index,
1503 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1504 ist->resample_channels, layout1,
1505 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1506 avctx->channels, layout2);
1508 ist->resample_sample_fmt = decoded_frame->format;
1509 ist->resample_sample_rate = decoded_frame->sample_rate;
1510 ist->resample_channel_layout = decoded_frame->channel_layout;
1511 ist->resample_channels = avctx->channels;
1513 for (i = 0; i < nb_filtergraphs; i++)
1514 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1515 FilterGraph *fg = filtergraphs[i];
1517 if (configure_filtergraph(fg) < 0) {
1518 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1521 for (j = 0; j < fg->nb_outputs; j++) {
1522 OutputStream *ost = fg->outputs[j]->ost;
1523 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1524 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1525 av_buffersink_set_frame_size(ost->filter->filter,
1526 ost->st->codec->frame_size);
1531 /* if the decoder provides a pts, use it instead of the last packet pts.
1532 the decoder could be delaying output by a packet or more. */
1533 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1534 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1535 decoded_frame_tb = avctx->time_base;
1536 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1537 decoded_frame->pts = decoded_frame->pkt_pts;
1538 pkt->pts = AV_NOPTS_VALUE;
1539 decoded_frame_tb = ist->st->time_base;
1540 } else if (pkt->pts != AV_NOPTS_VALUE) {
1541 decoded_frame->pts = pkt->pts;
1542 pkt->pts = AV_NOPTS_VALUE;
1543 decoded_frame_tb = ist->st->time_base;
1545 decoded_frame->pts = ist->dts;
1546 decoded_frame_tb = AV_TIME_BASE_Q;
1548 if (decoded_frame->pts != AV_NOPTS_VALUE)
1549 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1550 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1551 (AVRational){1, ist->st->codec->sample_rate});
1552 for (i = 0; i < ist->nb_filters; i++)
1553 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1554 AV_BUFFERSRC_FLAG_PUSH);
1556 decoded_frame->pts = AV_NOPTS_VALUE;
1561 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1563 AVFrame *decoded_frame;
1564 void *buffer_to_free = NULL;
1565 int i, ret = 0, resample_changed;
1566 int64_t best_effort_timestamp;
1567 AVRational *frame_sample_aspect;
1569 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1570 return AVERROR(ENOMEM);
1571 decoded_frame = ist->decoded_frame;
1572 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1574 update_benchmark(NULL);
1575 ret = avcodec_decode_video2(ist->st->codec,
1576 decoded_frame, got_output, pkt);
1577 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1578 if (!*got_output || ret < 0) {
1580 for (i = 0; i < ist->nb_filters; i++)
1581 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1586 if(ist->top_field_first>=0)
1587 decoded_frame->top_field_first = ist->top_field_first;
1589 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1590 if(best_effort_timestamp != AV_NOPTS_VALUE)
1591 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1594 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1595 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1596 ist->st->index, av_ts2str(decoded_frame->pts),
1597 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1598 best_effort_timestamp,
1599 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1600 decoded_frame->key_frame, decoded_frame->pict_type);
1604 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1606 rate_emu_sleep(ist);
1608 if (ist->st->sample_aspect_ratio.num)
1609 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1611 resample_changed = ist->resample_width != decoded_frame->width ||
1612 ist->resample_height != decoded_frame->height ||
1613 ist->resample_pix_fmt != decoded_frame->format;
1614 if (resample_changed) {
1615 av_log(NULL, AV_LOG_INFO,
1616 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1617 ist->file_index, ist->st->index,
1618 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1619 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1621 ist->resample_width = decoded_frame->width;
1622 ist->resample_height = decoded_frame->height;
1623 ist->resample_pix_fmt = decoded_frame->format;
1625 for (i = 0; i < nb_filtergraphs; i++) {
1626 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1627 configure_filtergraph(filtergraphs[i]) < 0) {
1628 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1634 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1635 for (i = 0; i < ist->nb_filters; i++) {
1636 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1637 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1638 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1640 if (!frame_sample_aspect->num)
1641 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1642 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1643 FrameBuffer *buf = decoded_frame->opaque;
1644 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1645 decoded_frame->data, decoded_frame->linesize,
1646 AV_PERM_READ | AV_PERM_PRESERVE,
1647 ist->st->codec->width, ist->st->codec->height,
1648 ist->st->codec->pix_fmt);
1650 avfilter_copy_frame_props(fb, decoded_frame);
1651 fb->buf->priv = buf;
1652 fb->buf->free = filter_release_buffer;
1654 av_assert0(buf->refcount>0);
1656 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1657 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1658 AV_BUFFERSRC_FLAG_NO_COPY |
1659 AV_BUFFERSRC_FLAG_PUSH);
1661 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1662 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1668 av_free(buffer_to_free);
1672 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1674 AVSubtitle subtitle;
1675 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1676 &subtitle, got_output, pkt);
1677 if (ret < 0 || !*got_output) {
1679 sub2video_flush(ist);
1683 if (ist->fix_sub_duration) {
1684 if (ist->prev_sub.got_output) {
1685 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1686 1000, AV_TIME_BASE);
1687 if (end < ist->prev_sub.subtitle.end_display_time) {
1688 av_log(ist->st->codec, AV_LOG_DEBUG,
1689 "Subtitle duration reduced from %d to %d\n",
1690 ist->prev_sub.subtitle.end_display_time, end);
1691 ist->prev_sub.subtitle.end_display_time = end;
1694 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1695 FFSWAP(int, ret, ist->prev_sub.ret);
1696 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1699 sub2video_update(ist, &subtitle);
1701 if (!*got_output || !subtitle.num_rects)
1704 rate_emu_sleep(ist);
1706 for (i = 0; i < nb_output_streams; i++) {
1707 OutputStream *ost = output_streams[i];
1709 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1712 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1715 avsubtitle_free(&subtitle);
1719 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1720 static int output_packet(InputStream *ist, const AVPacket *pkt)
1726 if (!ist->saw_first_ts) {
1727 ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1729 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1730 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1731 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1733 ist->saw_first_ts = 1;
1736 if (ist->next_dts == AV_NOPTS_VALUE)
1737 ist->next_dts = ist->dts;
1738 if (ist->next_pts == AV_NOPTS_VALUE)
1739 ist->next_pts = ist->pts;
1743 av_init_packet(&avpkt);
1751 if (pkt->dts != AV_NOPTS_VALUE) {
1752 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1753 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1754 ist->next_pts = ist->pts = ist->dts;
1757 // while we have more to decode or while the decoder did output something on EOF
1758 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1762 ist->pts = ist->next_pts;
1763 ist->dts = ist->next_dts;
1765 if (avpkt.size && avpkt.size != pkt->size) {
1766 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1767 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1768 ist->showed_multi_packet_warning = 1;
1771 switch (ist->st->codec->codec_type) {
1772 case AVMEDIA_TYPE_AUDIO:
1773 ret = decode_audio (ist, &avpkt, &got_output);
1775 case AVMEDIA_TYPE_VIDEO:
1776 ret = decode_video (ist, &avpkt, &got_output);
1777 if (avpkt.duration) {
1778 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1779 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1780 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1781 duration = ((int64_t)AV_TIME_BASE *
1782 ist->st->codec->time_base.num * ticks) /
1783 ist->st->codec->time_base.den;
1787 if(ist->dts != AV_NOPTS_VALUE && duration) {
1788 ist->next_dts += duration;
1790 ist->next_dts = AV_NOPTS_VALUE;
1793 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1795 case AVMEDIA_TYPE_SUBTITLE:
1796 ret = transcode_subtitles(ist, &avpkt, &got_output);
1806 avpkt.pts= AV_NOPTS_VALUE;
1808 // touch data and size only if not EOF
1810 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1820 /* handle stream copy */
1821 if (!ist->decoding_needed) {
1822 rate_emu_sleep(ist);
1823 ist->dts = ist->next_dts;
1824 switch (ist->st->codec->codec_type) {
1825 case AVMEDIA_TYPE_AUDIO:
1826 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1827 ist->st->codec->sample_rate;
1829 case AVMEDIA_TYPE_VIDEO:
1830 if (pkt->duration) {
1831 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1832 } else if(ist->st->codec->time_base.num != 0) {
1833 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1834 ist->next_dts += ((int64_t)AV_TIME_BASE *
1835 ist->st->codec->time_base.num * ticks) /
1836 ist->st->codec->time_base.den;
1840 ist->pts = ist->dts;
1841 ist->next_pts = ist->next_dts;
1843 for (i = 0; pkt && i < nb_output_streams; i++) {
1844 OutputStream *ost = output_streams[i];
1846 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1849 do_streamcopy(ist, ost, pkt);
1855 static void print_sdp(void)
1859 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1863 for (i = 0; i < nb_output_files; i++)
1864 avc[i] = output_files[i]->ctx;
1866 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1867 printf("SDP:\n%s\n", sdp);
1872 static int init_input_stream(int ist_index, char *error, int error_len)
1875 InputStream *ist = input_streams[ist_index];
1877 if (ist->decoding_needed) {
1878 AVCodec *codec = ist->dec;
1880 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1881 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1882 return AVERROR(EINVAL);
1885 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1886 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1887 ist->st->codec->get_buffer = codec_get_buffer;
1888 ist->st->codec->release_buffer = codec_release_buffer;
1889 ist->st->codec->opaque = &ist->buffer_pool;
1892 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1893 av_dict_set(&ist->opts, "threads", "auto", 0);
1894 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1895 if (ret == AVERROR_EXPERIMENTAL)
1896 abort_codec_experimental(codec, 0);
1897 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1898 ist->file_index, ist->st->index);
1901 assert_avoptions(ist->opts);
1904 ist->next_pts = AV_NOPTS_VALUE;
1905 ist->next_dts = AV_NOPTS_VALUE;
1911 static InputStream *get_input_stream(OutputStream *ost)
1913 if (ost->source_index >= 0)
1914 return input_streams[ost->source_index];
1918 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1919 AVCodecContext *avctx)
1925 for (p = kf; *p; p++)
1928 ost->forced_kf_count = n;
1929 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1930 if (!ost->forced_kf_pts) {
1931 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1936 for (i = 0; i < n; i++) {
1937 char *next = strchr(p, ',');
1942 t = parse_time_or_die("force_key_frames", p, 1);
1943 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1949 static void report_new_stream(int input_index, AVPacket *pkt)
1951 InputFile *file = input_files[input_index];
1952 AVStream *st = file->ctx->streams[pkt->stream_index];
1954 if (pkt->stream_index < file->nb_streams_warn)
1956 av_log(file->ctx, AV_LOG_WARNING,
1957 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1958 av_get_media_type_string(st->codec->codec_type),
1959 input_index, pkt->stream_index,
1960 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1961 file->nb_streams_warn = pkt->stream_index + 1;
1964 static int transcode_init(void)
1966 int ret = 0, i, j, k;
1967 AVFormatContext *oc;
1968 AVCodecContext *codec;
1974 /* init framerate emulation */
1975 for (i = 0; i < nb_input_files; i++) {
1976 InputFile *ifile = input_files[i];
1977 if (ifile->rate_emu)
1978 for (j = 0; j < ifile->nb_streams; j++)
1979 input_streams[j + ifile->ist_index]->start = av_gettime();
1982 /* output stream init */
1983 for (i = 0; i < nb_output_files; i++) {
1984 oc = output_files[i]->ctx;
1985 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1986 av_dump_format(oc, i, oc->filename, 1);
1987 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1988 return AVERROR(EINVAL);
1992 /* init complex filtergraphs */
1993 for (i = 0; i < nb_filtergraphs; i++)
1994 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1997 /* for each output stream, we compute the right encoding parameters */
1998 for (i = 0; i < nb_output_streams; i++) {
1999 AVCodecContext *icodec = NULL;
2000 ost = output_streams[i];
2001 oc = output_files[ost->file_index]->ctx;
2002 ist = get_input_stream(ost);
2004 if (ost->attachment_filename)
2007 codec = ost->st->codec;
2010 icodec = ist->st->codec;
2012 ost->st->disposition = ist->st->disposition;
2013 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2014 codec->chroma_sample_location = icodec->chroma_sample_location;
2017 if (ost->stream_copy) {
2018 uint64_t extra_size;
2020 av_assert0(ist && !ost->filter);
2022 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2024 if (extra_size > INT_MAX) {
2025 return AVERROR(EINVAL);
2028 /* if stream_copy is selected, no need to decode or encode */
2029 codec->codec_id = icodec->codec_id;
2030 codec->codec_type = icodec->codec_type;
2032 if (!codec->codec_tag) {
2033 if (!oc->oformat->codec_tag ||
2034 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2035 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2036 codec->codec_tag = icodec->codec_tag;
2039 codec->bit_rate = icodec->bit_rate;
2040 codec->rc_max_rate = icodec->rc_max_rate;
2041 codec->rc_buffer_size = icodec->rc_buffer_size;
2042 codec->field_order = icodec->field_order;
2043 codec->extradata = av_mallocz(extra_size);
2044 if (!codec->extradata) {
2045 return AVERROR(ENOMEM);
2047 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2048 codec->extradata_size= icodec->extradata_size;
2049 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2051 codec->time_base = ist->st->time_base;
2053 * Avi is a special case here because it supports variable fps but
2054 * having the fps and timebase differe significantly adds quite some
2057 if(!strcmp(oc->oformat->name, "avi")) {
2058 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2059 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2060 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2061 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2063 codec->time_base.num = ist->st->r_frame_rate.den;
2064 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2065 codec->ticks_per_frame = 2;
2066 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2067 && av_q2d(ist->st->time_base) < 1.0/500
2069 codec->time_base = icodec->time_base;
2070 codec->time_base.num *= icodec->ticks_per_frame;
2071 codec->time_base.den *= 2;
2072 codec->ticks_per_frame = 2;
2074 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2075 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2076 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2077 && strcmp(oc->oformat->name, "f4v")
2079 if( copy_tb<0 && icodec->time_base.den
2080 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2081 && av_q2d(ist->st->time_base) < 1.0/500
2083 codec->time_base = icodec->time_base;
2084 codec->time_base.num *= icodec->ticks_per_frame;
2088 if(ost->frame_rate.num)
2089 codec->time_base = av_inv_q(ost->frame_rate);
2091 av_reduce(&codec->time_base.num, &codec->time_base.den,
2092 codec->time_base.num, codec->time_base.den, INT_MAX);
2094 switch (codec->codec_type) {
2095 case AVMEDIA_TYPE_AUDIO:
2096 if (audio_volume != 256) {
2097 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2100 codec->channel_layout = icodec->channel_layout;
2101 codec->sample_rate = icodec->sample_rate;
2102 codec->channels = icodec->channels;
2103 codec->frame_size = icodec->frame_size;
2104 codec->audio_service_type = icodec->audio_service_type;
2105 codec->block_align = icodec->block_align;
2106 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2107 codec->block_align= 0;
2108 if(codec->codec_id == AV_CODEC_ID_AC3)
2109 codec->block_align= 0;
2111 case AVMEDIA_TYPE_VIDEO:
2112 codec->pix_fmt = icodec->pix_fmt;
2113 codec->width = icodec->width;
2114 codec->height = icodec->height;
2115 codec->has_b_frames = icodec->has_b_frames;
2116 if (!codec->sample_aspect_ratio.num) {
2117 codec->sample_aspect_ratio =
2118 ost->st->sample_aspect_ratio =
2119 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2120 ist->st->codec->sample_aspect_ratio.num ?
2121 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2123 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2125 case AVMEDIA_TYPE_SUBTITLE:
2126 codec->width = icodec->width;
2127 codec->height = icodec->height;
2129 case AVMEDIA_TYPE_DATA:
2130 case AVMEDIA_TYPE_ATTACHMENT:
2137 ost->enc = avcodec_find_encoder(codec->codec_id);
2139 /* should only happen when a default codec is not present. */
2140 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2141 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2142 ret = AVERROR(EINVAL);
2147 ist->decoding_needed++;
2148 ost->encoding_needed = 1;
2151 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2152 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2154 fg = init_simple_filtergraph(ist, ost);
2155 if (configure_filtergraph(fg)) {
2156 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2161 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2162 if (ost->filter && !ost->frame_rate.num)
2163 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2164 if (ist && !ost->frame_rate.num)
2165 ost->frame_rate = ist->framerate;
2166 if (ist && !ost->frame_rate.num)
2167 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2168 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2169 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2170 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2171 ost->frame_rate = ost->enc->supported_framerates[idx];
2175 switch (codec->codec_type) {
2176 case AVMEDIA_TYPE_AUDIO:
2177 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2178 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2179 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2180 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2181 codec->time_base = (AVRational){ 1, codec->sample_rate };
2183 case AVMEDIA_TYPE_VIDEO:
2184 codec->time_base = av_inv_q(ost->frame_rate);
2185 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2186 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2187 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2188 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2189 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2190 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2192 for (j = 0; j < ost->forced_kf_count; j++)
2193 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2197 codec->width = ost->filter->filter->inputs[0]->w;
2198 codec->height = ost->filter->filter->inputs[0]->h;
2199 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2200 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2201 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2202 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2203 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2206 codec->width != icodec->width ||
2207 codec->height != icodec->height ||
2208 codec->pix_fmt != icodec->pix_fmt) {
2209 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2212 if (ost->forced_keyframes)
2213 parse_forced_key_frames(ost->forced_keyframes, ost,
2216 case AVMEDIA_TYPE_SUBTITLE:
2217 codec->time_base = (AVRational){1, 1000};
2218 if (!codec->width) {
2219 codec->width = input_streams[ost->source_index]->st->codec->width;
2220 codec->height = input_streams[ost->source_index]->st->codec->height;
2228 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2229 char logfilename[1024];
2232 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2233 ost->logfile_prefix ? ost->logfile_prefix :
2234 DEFAULT_PASS_LOGFILENAME_PREFIX,
2236 if (!strcmp(ost->enc->name, "libx264")) {
2237 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2239 if (codec->flags & CODEC_FLAG_PASS2) {
2241 size_t logbuffer_size;
2242 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2243 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2247 codec->stats_in = logbuffer;
2249 if (codec->flags & CODEC_FLAG_PASS1) {
2250 f = fopen(logfilename, "wb");
2252 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2253 logfilename, strerror(errno));
2263 /* open each encoder */
2264 for (i = 0; i < nb_output_streams; i++) {
2265 ost = output_streams[i];
2266 if (ost->encoding_needed) {
2267 AVCodec *codec = ost->enc;
2268 AVCodecContext *dec = NULL;
2270 if ((ist = get_input_stream(ost)))
2271 dec = ist->st->codec;
2272 if (dec && dec->subtitle_header) {
2273 /* ASS code assumes this buffer is null terminated so add extra byte. */
2274 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2275 if (!ost->st->codec->subtitle_header) {
2276 ret = AVERROR(ENOMEM);
2279 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2280 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2282 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2283 av_dict_set(&ost->opts, "threads", "auto", 0);
2284 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2285 if (ret == AVERROR_EXPERIMENTAL)
2286 abort_codec_experimental(codec, 1);
2287 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2288 ost->file_index, ost->index);
2291 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2292 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2293 av_buffersink_set_frame_size(ost->filter->filter,
2294 ost->st->codec->frame_size);
2295 assert_avoptions(ost->opts);
2296 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2297 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2298 " It takes bits/s as argument, not kbits/s\n");
2299 extra_size += ost->st->codec->extradata_size;
2301 if (ost->st->codec->me_threshold)
2302 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2306 /* init input streams */
2307 for (i = 0; i < nb_input_streams; i++)
2308 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2311 /* discard unused programs */
2312 for (i = 0; i < nb_input_files; i++) {
2313 InputFile *ifile = input_files[i];
2314 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2315 AVProgram *p = ifile->ctx->programs[j];
2316 int discard = AVDISCARD_ALL;
2318 for (k = 0; k < p->nb_stream_indexes; k++)
2319 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2320 discard = AVDISCARD_DEFAULT;
2323 p->discard = discard;
2327 /* open files and write file headers */
2328 for (i = 0; i < nb_output_files; i++) {
2329 oc = output_files[i]->ctx;
2330 oc->interrupt_callback = int_cb;
2331 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2333 const char *errbuf_ptr = errbuf;
2334 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2335 errbuf_ptr = strerror(AVUNERROR(ret));
2336 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2337 ret = AVERROR(EINVAL);
2340 // assert_avoptions(output_files[i]->opts);
2341 if (strcmp(oc->oformat->name, "rtp")) {
2347 /* dump the file output parameters - cannot be done before in case
2349 for (i = 0; i < nb_output_files; i++) {
2350 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2353 /* dump the stream mapping */
2354 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2355 for (i = 0; i < nb_input_streams; i++) {
2356 ist = input_streams[i];
2358 for (j = 0; j < ist->nb_filters; j++) {
2359 if (ist->filters[j]->graph->graph_desc) {
2360 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2361 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2362 ist->filters[j]->name);
2363 if (nb_filtergraphs > 1)
2364 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2365 av_log(NULL, AV_LOG_INFO, "\n");
2370 for (i = 0; i < nb_output_streams; i++) {
2371 ost = output_streams[i];
2373 if (ost->attachment_filename) {
2374 /* an attached file */
2375 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2376 ost->attachment_filename, ost->file_index, ost->index);
2380 if (ost->filter && ost->filter->graph->graph_desc) {
2381 /* output from a complex graph */
2382 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2383 if (nb_filtergraphs > 1)
2384 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2386 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2387 ost->index, ost->enc ? ost->enc->name : "?");
2391 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2392 input_streams[ost->source_index]->file_index,
2393 input_streams[ost->source_index]->st->index,
2396 if (ost->sync_ist != input_streams[ost->source_index])
2397 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2398 ost->sync_ist->file_index,
2399 ost->sync_ist->st->index);
2400 if (ost->stream_copy)
2401 av_log(NULL, AV_LOG_INFO, " (copy)");
2403 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2404 input_streams[ost->source_index]->dec->name : "?",
2405 ost->enc ? ost->enc->name : "?");
2406 av_log(NULL, AV_LOG_INFO, "\n");
2410 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2421 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2422 static int need_output(void)
2426 for (i = 0; i < nb_output_streams; i++) {
2427 OutputStream *ost = output_streams[i];
2428 OutputFile *of = output_files[ost->file_index];
2429 AVFormatContext *os = output_files[ost->file_index]->ctx;
2431 if (ost->finished ||
2432 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2434 if (ost->frame_number >= ost->max_frames) {
2436 for (j = 0; j < of->ctx->nb_streams; j++)
2437 close_output_stream(output_streams[of->ost_index + j]);
2448 * Select the output stream to process.
2450 * @return selected output stream, or NULL if none available
2452 static OutputStream *choose_output(void)
2455 int64_t opts_min = INT64_MAX;
2456 OutputStream *ost_min = NULL;
2458 for (i = 0; i < nb_output_streams; i++) {
2459 OutputStream *ost = output_streams[i];
2460 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2462 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2470 static int check_keyboard_interaction(int64_t cur_time)
2473 static int64_t last_time;
2474 if (received_nb_signals)
2475 return AVERROR_EXIT;
2476 /* read_key() returns 0 on EOF */
2477 if(cur_time - last_time >= 100000 && !run_as_daemon){
2479 last_time = cur_time;
2483 return AVERROR_EXIT;
2484 if (key == '+') av_log_set_level(av_log_get_level()+10);
2485 if (key == '-') av_log_set_level(av_log_get_level()-10);
2486 if (key == 's') qp_hist ^= 1;
2489 do_hex_dump = do_pkt_dump = 0;
2490 } else if(do_pkt_dump){
2494 av_log_set_level(AV_LOG_DEBUG);
2496 if (key == 'c' || key == 'C'){
2497 char buf[4096], target[64], command[256], arg[256] = {0};
2500 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2502 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2507 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2508 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2509 target, time, command, arg);
2510 for (i = 0; i < nb_filtergraphs; i++) {
2511 FilterGraph *fg = filtergraphs[i];
2514 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2515 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2516 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2518 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2523 av_log(NULL, AV_LOG_ERROR,
2524 "Parse error, at least 3 arguments were expected, "
2525 "only %d given in string '%s'\n", n, buf);
2528 if (key == 'd' || key == 'D'){
2531 debug = input_streams[0]->st->codec->debug<<1;
2532 if(!debug) debug = 1;
2533 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2536 if(scanf("%d", &debug)!=1)
2537 fprintf(stderr,"error parsing debug value\n");
2538 for(i=0;i<nb_input_streams;i++) {
2539 input_streams[i]->st->codec->debug = debug;
2541 for(i=0;i<nb_output_streams;i++) {
2542 OutputStream *ost = output_streams[i];
2543 ost->st->codec->debug = debug;
2545 if(debug) av_log_set_level(AV_LOG_DEBUG);
2546 fprintf(stderr,"debug=%d\n", debug);
2549 fprintf(stderr, "key function\n"
2550 "? show this help\n"
2551 "+ increase verbosity\n"
2552 "- decrease verbosity\n"
2553 "c Send command to filtergraph\n"
2554 "D cycle through available debug modes\n"
2555 "h dump packets/hex press to cycle through the 3 states\n"
2557 "s Show QP histogram\n"
2564 static void *input_thread(void *arg)
2569 while (!transcoding_finished && ret >= 0) {
2571 ret = av_read_frame(f->ctx, &pkt);
2573 if (ret == AVERROR(EAGAIN)) {
2580 pthread_mutex_lock(&f->fifo_lock);
2581 while (!av_fifo_space(f->fifo))
2582 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2584 av_dup_packet(&pkt);
2585 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2587 pthread_mutex_unlock(&f->fifo_lock);
2594 static void free_input_threads(void)
2598 if (nb_input_files == 1)
2601 transcoding_finished = 1;
2603 for (i = 0; i < nb_input_files; i++) {
2604 InputFile *f = input_files[i];
2607 if (!f->fifo || f->joined)
2610 pthread_mutex_lock(&f->fifo_lock);
2611 while (av_fifo_size(f->fifo)) {
2612 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2613 av_free_packet(&pkt);
2615 pthread_cond_signal(&f->fifo_cond);
2616 pthread_mutex_unlock(&f->fifo_lock);
2618 pthread_join(f->thread, NULL);
2621 while (av_fifo_size(f->fifo)) {
2622 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2623 av_free_packet(&pkt);
2625 av_fifo_free(f->fifo);
2629 static int init_input_threads(void)
2633 if (nb_input_files == 1)
2636 for (i = 0; i < nb_input_files; i++) {
2637 InputFile *f = input_files[i];
2639 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2640 return AVERROR(ENOMEM);
2642 pthread_mutex_init(&f->fifo_lock, NULL);
2643 pthread_cond_init (&f->fifo_cond, NULL);
2645 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2646 return AVERROR(ret);
2651 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2655 pthread_mutex_lock(&f->fifo_lock);
2657 if (av_fifo_size(f->fifo)) {
2658 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2659 pthread_cond_signal(&f->fifo_cond);
2664 ret = AVERROR(EAGAIN);
2667 pthread_mutex_unlock(&f->fifo_lock);
2673 static int get_input_packet(InputFile *f, AVPacket *pkt)
2676 if (nb_input_files > 1)
2677 return get_input_packet_mt(f, pkt);
2679 return av_read_frame(f->ctx, pkt);
2682 static int got_eagain(void)
2685 for (i = 0; i < nb_output_streams; i++)
2686 if (output_streams[i]->unavailable)
2691 static void reset_eagain(void)
2694 for (i = 0; i < nb_input_files; i++)
2695 input_files[i]->eagain = 0;
2696 for (i = 0; i < nb_output_streams; i++)
2697 output_streams[i]->unavailable = 0;
2702 * - 0 -- one packet was read and processed
2703 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2704 * this function should be called again
2705 * - AVERROR_EOF -- this function should not be called again
2707 static int process_input(int file_index)
2709 InputFile *ifile = input_files[file_index];
2710 AVFormatContext *is;
2716 ret = get_input_packet(ifile, &pkt);
2718 if (ret == AVERROR(EAGAIN)) {
2723 if (ret != AVERROR_EOF) {
2724 print_error(is->filename, ret);
2728 ifile->eof_reached = 1;
2730 for (i = 0; i < ifile->nb_streams; i++) {
2731 ist = input_streams[ifile->ist_index + i];
2732 if (ist->decoding_needed)
2733 output_packet(ist, NULL);
2735 /* mark all outputs that don't go through lavfi as finished */
2736 for (j = 0; j < nb_output_streams; j++) {
2737 OutputStream *ost = output_streams[j];
2739 if (ost->source_index == ifile->ist_index + i &&
2740 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2741 close_output_stream(ost);
2745 return AVERROR(EAGAIN);
2751 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2752 is->streams[pkt.stream_index]);
2754 /* the following test is needed in case new streams appear
2755 dynamically in stream : we ignore them */
2756 if (pkt.stream_index >= ifile->nb_streams) {
2757 report_new_stream(file_index, &pkt);
2758 goto discard_packet;
2761 ist = input_streams[ifile->ist_index + pkt.stream_index];
2763 goto discard_packet;
2766 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2767 "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",
2768 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2769 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2770 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2771 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2772 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2773 av_ts2str(input_files[ist->file_index]->ts_offset),
2774 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2777 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2778 int64_t stime, stime2;
2779 // Correcting starttime based on the enabled streams
2780 // 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.
2781 // so we instead do it here as part of discontinuity handling
2782 if ( ist->next_dts == AV_NOPTS_VALUE
2783 && ifile->ts_offset == -is->start_time
2784 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2785 int64_t new_start_time = INT64_MAX;
2786 for (i=0; i<is->nb_streams; i++) {
2787 AVStream *st = is->streams[i];
2788 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2790 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2792 if (new_start_time > is->start_time) {
2793 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2794 ifile->ts_offset = -new_start_time;
2798 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2799 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2800 ist->wrap_correction_done = 1;
2802 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2803 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2804 ist->wrap_correction_done = 0;
2806 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2807 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2808 ist->wrap_correction_done = 0;
2812 if (pkt.dts != AV_NOPTS_VALUE)
2813 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2814 if (pkt.pts != AV_NOPTS_VALUE)
2815 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2817 if (pkt.pts != AV_NOPTS_VALUE)
2818 pkt.pts *= ist->ts_scale;
2819 if (pkt.dts != AV_NOPTS_VALUE)
2820 pkt.dts *= ist->ts_scale;
2822 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2824 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2825 int64_t delta = pkt_dts - ist->next_dts;
2826 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2827 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2828 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2829 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2830 pkt_dts+1<ist->pts){
2831 ifile->ts_offset -= delta;
2832 av_log(NULL, AV_LOG_DEBUG,
2833 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2834 delta, ifile->ts_offset);
2835 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2836 if (pkt.pts != AV_NOPTS_VALUE)
2837 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2840 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2841 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2843 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2844 pkt.dts = AV_NOPTS_VALUE;
2846 if (pkt.pts != AV_NOPTS_VALUE){
2847 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2848 delta = pkt_pts - ist->next_dts;
2849 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2850 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2852 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2853 pkt.pts = AV_NOPTS_VALUE;
2860 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",
2861 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2862 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2863 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2864 av_ts2str(input_files[ist->file_index]->ts_offset),
2865 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2868 sub2video_heartbeat(ist, pkt.pts);
2870 ret = output_packet(ist, &pkt);
2873 av_strerror(ret, buf, sizeof(buf));
2874 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2875 ist->file_index, ist->st->index, buf);
2881 av_free_packet(&pkt);
2887 * Perform a step of transcoding for the specified filter graph.
2889 * @param[in] graph filter graph to consider
2890 * @param[out] best_ist input stream where a frame would allow to continue
2891 * @return 0 for success, <0 for error
2893 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2896 int nb_requests, nb_requests_max = 0;
2897 InputFilter *ifilter;
2901 ret = avfilter_graph_request_oldest(graph->graph);
2903 return reap_filters();
2905 if (ret == AVERROR_EOF) {
2906 ret = reap_filters();
2907 for (i = 0; i < graph->nb_outputs; i++)
2908 close_output_stream(graph->outputs[i]->ost);
2911 if (ret != AVERROR(EAGAIN))
2914 for (i = 0; i < graph->nb_inputs; i++) {
2915 ifilter = graph->inputs[i];
2917 if (input_files[ist->file_index]->eagain ||
2918 input_files[ist->file_index]->eof_reached)
2920 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2921 if (nb_requests > nb_requests_max) {
2922 nb_requests_max = nb_requests;
2928 for (i = 0; i < graph->nb_outputs; i++)
2929 graph->outputs[i]->ost->unavailable = 1;
2935 * Run a single step of transcoding.
2937 * @return 0 for success, <0 for error
2939 static int transcode_step(void)
2945 ost = choose_output();
2952 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2957 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2962 av_assert0(ost->source_index >= 0);
2963 ist = input_streams[ost->source_index];
2966 ret = process_input(ist->file_index);
2967 if (ret == AVERROR(EAGAIN)) {
2968 if (input_files[ist->file_index]->eagain)
2969 ost->unavailable = 1;
2973 return ret == AVERROR_EOF ? 0 : ret;
2975 return reap_filters();
2979 * The following code is the main loop of the file converter
2981 static int transcode(void)
2984 AVFormatContext *os;
2987 int64_t timer_start;
2989 ret = transcode_init();
2993 if (stdin_interaction) {
2994 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2997 timer_start = av_gettime();
3000 if ((ret = init_input_threads()) < 0)
3004 while (!received_sigterm) {
3005 int64_t cur_time= av_gettime();
3007 /* if 'q' pressed, exits */
3008 if (stdin_interaction)
3009 if (check_keyboard_interaction(cur_time) < 0)
3012 /* check if there's any stream where output is still needed */
3013 if (!need_output()) {
3014 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3018 ret = transcode_step();
3020 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3023 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3027 /* dump report by using the output first video and audio streams */
3028 print_report(0, timer_start, cur_time);
3031 free_input_threads();
3034 /* at the end of stream, we must flush the decoder buffers */
3035 for (i = 0; i < nb_input_streams; i++) {
3036 ist = input_streams[i];
3037 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3038 output_packet(ist, NULL);
3045 /* write the trailer if needed and close file */
3046 for (i = 0; i < nb_output_files; i++) {
3047 os = output_files[i]->ctx;
3048 av_write_trailer(os);
3051 /* dump report by using the first video and audio streams */
3052 print_report(1, timer_start, av_gettime());
3054 /* close each encoder */
3055 for (i = 0; i < nb_output_streams; i++) {
3056 ost = output_streams[i];
3057 if (ost->encoding_needed) {
3058 av_freep(&ost->st->codec->stats_in);
3059 avcodec_close(ost->st->codec);
3063 /* close each decoder */
3064 for (i = 0; i < nb_input_streams; i++) {
3065 ist = input_streams[i];
3066 if (ist->decoding_needed) {
3067 avcodec_close(ist->st->codec);
3076 free_input_threads();
3079 if (output_streams) {
3080 for (i = 0; i < nb_output_streams; i++) {
3081 ost = output_streams[i];
3083 if (ost->stream_copy)
3084 av_freep(&ost->st->codec->extradata);
3086 fclose(ost->logfile);
3087 ost->logfile = NULL;
3089 av_freep(&ost->st->codec->subtitle_header);
3090 av_free(ost->forced_kf_pts);
3091 av_dict_free(&ost->opts);
3099 static int64_t getutime(void)
3102 struct rusage rusage;
3104 getrusage(RUSAGE_SELF, &rusage);
3105 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3106 #elif HAVE_GETPROCESSTIMES
3108 FILETIME c, e, k, u;
3109 proc = GetCurrentProcess();
3110 GetProcessTimes(proc, &c, &e, &k, &u);
3111 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3113 return av_gettime();
3117 static int64_t getmaxrss(void)
3119 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3120 struct rusage rusage;
3121 getrusage(RUSAGE_SELF, &rusage);
3122 return (int64_t)rusage.ru_maxrss * 1024;
3123 #elif HAVE_GETPROCESSMEMORYINFO
3125 PROCESS_MEMORY_COUNTERS memcounters;
3126 proc = GetCurrentProcess();
3127 memcounters.cb = sizeof(memcounters);
3128 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3129 return memcounters.PeakPagefileUsage;
3135 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3139 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3141 int idx = locate_option(argc, argv, options, "cpuflags");
3142 if (idx && argv[idx + 1])
3143 opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
3146 int main(int argc, char **argv)
3148 OptionsContext o = { 0 };
3151 atexit(exit_program);
3153 reset_options(&o, 0);
3155 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3157 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3158 parse_loglevel(argc, argv, options);
3160 if(argc>1 && !strcmp(argv[1], "-d")){
3162 av_log_set_callback(log_callback_null);
3167 avcodec_register_all();
3169 avdevice_register_all();
3171 avfilter_register_all();
3173 avformat_network_init();
3175 show_banner(argc, argv, options);
3179 parse_cpuflags(argc, argv, options);
3182 parse_options(&o, argc, argv, options, opt_output_file);
3184 if (nb_output_files <= 0 && nb_input_files == 0) {
3186 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3190 /* file converter / grab */
3191 if (nb_output_files <= 0) {
3192 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3196 // if (nb_input_files == 0) {
3197 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3201 current_time = ti = getutime();
3202 if (transcode() < 0)
3204 ti = getutime() - ti;
3206 int maxrss = getmaxrss() / 1024;
3207 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);