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, end_pts;
218 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
219 AV_TIME_BASE_Q, ist->st->time_base);
220 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
221 AV_TIME_BASE_Q, ist->st->time_base);
222 num_rects = sub->num_rects;
224 pts = ist->sub2video.end_pts;
229 dst_linesize = ref->linesize[0];
230 memset(dst, 0, h * dst_linesize);
231 for (i = 0; i < num_rects; i++)
232 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
233 sub2video_push_ref(ist, pts);
234 ist->sub2video.end_pts = end_pts;
237 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
239 InputFile *infile = input_files[ist->file_index];
243 /* When a frame is read from a file, examine all sub2video streams in
244 the same file and send the sub2video frame again. Otherwise, decoded
245 video frames could be accumulating in the filter graph while a filter
246 (possibly overlay) is desperately waiting for a subtitle frame. */
247 for (i = 0; i < infile->nb_streams; i++) {
248 InputStream *ist2 = input_streams[infile->ist_index + i];
249 if (!ist2->sub2video.ref)
251 /* subtitles seem to be usually muxed ahead of other streams;
252 if not, substracting a larger time here is necessary */
253 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
254 /* do not send the heartbeat frame if the subtitle is already ahead */
255 if (pts2 <= ist2->sub2video.last_pts)
257 if (pts2 >= ist2->sub2video.end_pts)
258 sub2video_update(ist2, NULL);
259 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
260 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
262 sub2video_push_ref(ist2, pts2);
266 static void sub2video_flush(InputStream *ist)
270 for (i = 0; i < ist->nb_filters; i++)
271 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
274 /* end of sub2video hack */
278 av_log(NULL, AV_LOG_QUIET, "%s", "");
281 tcsetattr (0, TCSANOW, &oldtty);
285 static volatile int received_sigterm = 0;
286 static volatile int received_nb_signals = 0;
289 sigterm_handler(int sig)
291 received_sigterm = sig;
292 received_nb_signals++;
294 if(received_nb_signals > 3)
305 istty = isatty(0) && isatty(2);
307 if (istty && tcgetattr (0, &tty) == 0) {
312 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
313 |INLCR|IGNCR|ICRNL|IXON);
314 tty.c_oflag |= OPOST;
315 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
316 tty.c_cflag &= ~(CSIZE|PARENB);
321 tcsetattr (0, TCSANOW, &tty);
323 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
326 avformat_network_deinit();
328 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
329 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
331 signal(SIGXCPU, sigterm_handler);
335 /* read a key without blocking */
336 static int read_key(void)
348 n = select(1, &rfds, NULL, NULL, &tv);
357 # if HAVE_PEEKNAMEDPIPE
359 static HANDLE input_handle;
362 input_handle = GetStdHandle(STD_INPUT_HANDLE);
363 is_pipe = !GetConsoleMode(input_handle, &dw);
366 if (stdin->_cnt > 0) {
371 /* When running under a GUI, you will end here. */
372 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
373 // input pipe may have been closed by the program that ran ffmpeg
391 static int decode_interrupt_cb(void *ctx)
393 return received_nb_signals > 1;
396 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
398 static void exit_program(void)
402 for (i = 0; i < nb_filtergraphs; i++) {
403 avfilter_graph_free(&filtergraphs[i]->graph);
404 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
405 av_freep(&filtergraphs[i]->inputs[j]->name);
406 av_freep(&filtergraphs[i]->inputs[j]);
408 av_freep(&filtergraphs[i]->inputs);
409 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
410 av_freep(&filtergraphs[i]->outputs[j]->name);
411 av_freep(&filtergraphs[i]->outputs[j]);
413 av_freep(&filtergraphs[i]->outputs);
414 av_freep(&filtergraphs[i]);
416 av_freep(&filtergraphs);
418 av_freep(&subtitle_out);
421 for (i = 0; i < nb_output_files; i++) {
422 AVFormatContext *s = output_files[i]->ctx;
423 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
425 avformat_free_context(s);
426 av_dict_free(&output_files[i]->opts);
427 av_freep(&output_files[i]);
429 for (i = 0; i < nb_output_streams; i++) {
430 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
432 AVBitStreamFilterContext *next = bsfc->next;
433 av_bitstream_filter_close(bsfc);
436 output_streams[i]->bitstream_filters = NULL;
437 avcodec_free_frame(&output_streams[i]->filtered_frame);
439 av_freep(&output_streams[i]->forced_keyframes);
440 av_freep(&output_streams[i]->avfilter);
441 av_freep(&output_streams[i]->logfile_prefix);
442 av_freep(&output_streams[i]);
444 for (i = 0; i < nb_input_files; i++) {
445 avformat_close_input(&input_files[i]->ctx);
446 av_freep(&input_files[i]);
448 for (i = 0; i < nb_input_streams; i++) {
449 avcodec_free_frame(&input_streams[i]->decoded_frame);
450 av_dict_free(&input_streams[i]->opts);
451 free_buffer_pool(&input_streams[i]->buffer_pool);
452 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
453 av_freep(&input_streams[i]->filters);
454 av_freep(&input_streams[i]);
459 av_free(vstats_filename);
461 av_freep(&input_streams);
462 av_freep(&input_files);
463 av_freep(&output_streams);
464 av_freep(&output_files);
469 avformat_network_deinit();
471 if (received_sigterm) {
472 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
473 (int) received_sigterm);
478 void assert_avoptions(AVDictionary *m)
480 AVDictionaryEntry *t;
481 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
482 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
487 static void abort_codec_experimental(AVCodec *c, int encoder)
492 static void update_benchmark(const char *fmt, ...)
494 if (do_benchmark_all) {
495 int64_t t = getutime();
501 vsnprintf(buf, sizeof(buf), fmt, va);
503 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
509 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
511 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
512 AVCodecContext *avctx = ost->st->codec;
515 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
516 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
517 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
519 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
520 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
521 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
522 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
523 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
524 if(pkt->pts >= pkt->dts)
525 pkt->pts = FFMAX(pkt->pts, max);
531 * Audio encoders may split the packets -- #frames in != #packets out.
532 * But there is no reordering, so we can limit the number of output packets
533 * by simply dropping them here.
534 * Counting encoded video frames needs to be done separately because of
535 * reordering, see do_video_out()
537 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
538 if (ost->frame_number >= ost->max_frames) {
546 AVPacket new_pkt = *pkt;
547 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
548 &new_pkt.data, &new_pkt.size,
549 pkt->data, pkt->size,
550 pkt->flags & AV_PKT_FLAG_KEY);
551 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
552 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
554 memcpy(t, new_pkt.data, new_pkt.size);
555 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
563 new_pkt.destruct = av_destruct_packet;
565 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
566 bsfc->filter->name, pkt->stream_index,
567 avctx->codec ? avctx->codec->name : "copy");
577 pkt->stream_index = ost->index;
580 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
581 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
582 av_get_media_type_string(ost->st->codec->codec_type),
583 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
584 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
589 ret = av_interleaved_write_frame(s, pkt);
591 print_error("av_interleaved_write_frame()", ret);
596 static void close_output_stream(OutputStream *ost)
598 OutputFile *of = output_files[ost->file_index];
602 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
603 of->recording_time = FFMIN(of->recording_time, end);
607 static int check_recording_time(OutputStream *ost)
609 OutputFile *of = output_files[ost->file_index];
611 if (of->recording_time != INT64_MAX &&
612 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
613 AV_TIME_BASE_Q) >= 0) {
614 close_output_stream(ost);
620 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
623 AVCodecContext *enc = ost->st->codec;
627 av_init_packet(&pkt);
631 if (!check_recording_time(ost))
634 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
635 frame->pts = ost->sync_opts;
636 ost->sync_opts = frame->pts + frame->nb_samples;
638 av_assert0(pkt.size || !pkt.data);
639 update_benchmark(NULL);
640 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
641 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
644 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
647 if (pkt.pts != AV_NOPTS_VALUE)
648 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
649 if (pkt.dts != AV_NOPTS_VALUE)
650 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
651 if (pkt.duration > 0)
652 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
655 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
656 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
657 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
658 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
661 audio_size += pkt.size;
662 write_frame(s, &pkt, ost);
664 av_free_packet(&pkt);
668 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
672 AVPicture picture_tmp;
675 dec = ist->st->codec;
677 /* deinterlace : must be done before any resize */
678 if (do_deinterlace) {
681 /* create temporary picture */
682 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
685 buf = av_malloc(size);
689 picture2 = &picture_tmp;
690 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
692 if (avpicture_deinterlace(picture2, picture,
693 dec->pix_fmt, dec->width, dec->height) < 0) {
694 /* if error, do not deinterlace */
695 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
704 if (picture != picture2)
705 *picture = *picture2;
709 static void do_subtitle_out(AVFormatContext *s,
714 int subtitle_out_max_size = 1024 * 1024;
715 int subtitle_out_size, nb, i;
720 if (sub->pts == AV_NOPTS_VALUE) {
721 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
727 enc = ost->st->codec;
730 subtitle_out = av_malloc(subtitle_out_max_size);
733 /* Note: DVB subtitle need one packet to draw them and one other
734 packet to clear them */
735 /* XXX: signal it in the codec context ? */
736 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
741 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
742 pts = sub->pts - output_files[ost->file_index]->start_time;
743 for (i = 0; i < nb; i++) {
744 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
745 if (!check_recording_time(ost))
749 // start_display_time is required to be 0
750 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
751 sub->end_display_time -= sub->start_display_time;
752 sub->start_display_time = 0;
755 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
756 subtitle_out_max_size, sub);
757 if (subtitle_out_size < 0) {
758 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
762 av_init_packet(&pkt);
763 pkt.data = subtitle_out;
764 pkt.size = subtitle_out_size;
765 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
766 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
767 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
768 /* XXX: the pts correction is handled here. Maybe handling
769 it in the codec would be better */
771 pkt.pts += 90 * sub->start_display_time;
773 pkt.pts += 90 * sub->end_display_time;
775 subtitle_size += pkt.size;
776 write_frame(s, &pkt, ost);
780 static void do_video_out(AVFormatContext *s,
784 int ret, format_video_sync;
786 AVCodecContext *enc = ost->st->codec;
788 double sync_ipts, delta;
791 InputStream *ist = NULL;
793 if (ost->source_index >= 0)
794 ist = input_streams[ost->source_index];
796 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
797 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
799 sync_ipts = in_picture->pts;
800 delta = sync_ipts - ost->sync_opts + duration;
802 /* by default, we output a single frame */
805 format_video_sync = video_sync_method;
806 if (format_video_sync == VSYNC_AUTO)
807 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
809 switch (format_video_sync) {
811 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
814 else if (delta > 1.1)
815 nb_frames = lrintf(delta);
820 else if (delta > 0.6)
821 ost->sync_opts = lrint(sync_ipts);
824 case VSYNC_PASSTHROUGH:
825 ost->sync_opts = lrint(sync_ipts);
831 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
832 if (nb_frames == 0) {
834 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
836 } else if (nb_frames > 1) {
837 if (nb_frames > dts_error_threshold * 30) {
838 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
842 nb_frames_dup += nb_frames - 1;
843 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
846 /* duplicates frame if needed */
847 for (i = 0; i < nb_frames; i++) {
848 av_init_packet(&pkt);
852 in_picture->pts = ost->sync_opts;
854 if (!check_recording_time(ost))
857 if (s->oformat->flags & AVFMT_RAWPICTURE &&
858 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
859 /* raw pictures are written as AVPicture structure to
860 avoid any copies. We support temporarily the older
862 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
863 enc->coded_frame->top_field_first = in_picture->top_field_first;
864 if (enc->coded_frame->interlaced_frame)
865 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
867 enc->field_order = AV_FIELD_PROGRESSIVE;
868 pkt.data = (uint8_t *)in_picture;
869 pkt.size = sizeof(AVPicture);
870 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
871 pkt.flags |= AV_PKT_FLAG_KEY;
873 video_size += pkt.size;
874 write_frame(s, &pkt, ost);
879 big_picture = *in_picture;
880 /* better than nothing: use input picture interlaced
882 big_picture.interlaced_frame = in_picture->interlaced_frame;
883 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
884 if (ost->top_field_first == -1)
885 big_picture.top_field_first = in_picture->top_field_first;
887 big_picture.top_field_first = !!ost->top_field_first;
890 if (big_picture.interlaced_frame) {
891 if (enc->codec->id == AV_CODEC_ID_MJPEG)
892 enc->field_order = big_picture.top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
894 enc->field_order = big_picture.top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
896 enc->field_order = AV_FIELD_PROGRESSIVE;
898 big_picture.quality = ost->st->codec->global_quality;
899 if (!enc->me_threshold)
900 big_picture.pict_type = 0;
901 if (ost->forced_kf_index < ost->forced_kf_count &&
902 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
903 big_picture.pict_type = AV_PICTURE_TYPE_I;
904 ost->forced_kf_index++;
906 update_benchmark(NULL);
907 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
908 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
910 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
915 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
916 pkt.pts = ost->sync_opts;
918 if (pkt.pts != AV_NOPTS_VALUE)
919 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
920 if (pkt.dts != AV_NOPTS_VALUE)
921 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
924 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
925 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
926 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
927 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
930 frame_size = pkt.size;
931 video_size += pkt.size;
932 write_frame(s, &pkt, ost);
933 av_free_packet(&pkt);
935 /* if two pass, output log */
936 if (ost->logfile && enc->stats_out) {
937 fprintf(ost->logfile, "%s", enc->stats_out);
943 * For video, number of frames in == number of packets out.
944 * But there may be reordering, so we can't throw away frames on encoder
945 * flush, we need to limit them here, before they go into encoder.
950 if (vstats_filename && frame_size)
951 do_video_stats(ost, frame_size);
954 static double psnr(double d)
956 return -10.0 * log(d) / log(10.0);
959 static void do_video_stats(OutputStream *ost, int frame_size)
963 double ti1, bitrate, avg_bitrate;
965 /* this is executed just the first time do_video_stats is called */
967 vstats_file = fopen(vstats_filename, "w");
974 enc = ost->st->codec;
975 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
976 frame_number = ost->st->nb_frames;
977 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
978 if (enc->flags&CODEC_FLAG_PSNR)
979 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
981 fprintf(vstats_file,"f_size= %6d ", frame_size);
982 /* compute pts value */
983 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
987 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
988 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
989 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
990 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
991 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
996 * Get and encode new output from any of the filtergraphs, without causing
999 * @return 0 for success, <0 for severe errors
1001 static int reap_filters(void)
1003 AVFilterBufferRef *picref;
1004 AVFrame *filtered_frame = NULL;
1008 /* Reap all buffers present in the buffer sinks */
1009 for (i = 0; i < nb_output_streams; i++) {
1010 OutputStream *ost = output_streams[i];
1011 OutputFile *of = output_files[ost->file_index];
1017 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1018 return AVERROR(ENOMEM);
1020 avcodec_get_frame_defaults(ost->filtered_frame);
1021 filtered_frame = ost->filtered_frame;
1024 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1025 AV_BUFFERSINK_FLAG_NO_REQUEST);
1027 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1029 av_strerror(ret, buf, sizeof(buf));
1030 av_log(NULL, AV_LOG_WARNING,
1031 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1035 frame_pts = AV_NOPTS_VALUE;
1036 if (picref->pts != AV_NOPTS_VALUE) {
1037 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1038 ost->filter->filter->inputs[0]->time_base,
1039 ost->st->codec->time_base) -
1040 av_rescale_q(of->start_time,
1042 ost->st->codec->time_base);
1044 if (of->start_time && filtered_frame->pts < 0) {
1045 avfilter_unref_buffer(picref);
1049 //if (ost->source_index >= 0)
1050 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1053 switch (ost->filter->filter->inputs[0]->type) {
1054 case AVMEDIA_TYPE_VIDEO:
1055 avfilter_copy_buf_props(filtered_frame, picref);
1056 filtered_frame->pts = frame_pts;
1057 if (!ost->frame_aspect_ratio)
1058 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1060 do_video_out(of->ctx, ost, filtered_frame);
1062 case AVMEDIA_TYPE_AUDIO:
1063 avfilter_copy_buf_props(filtered_frame, picref);
1064 filtered_frame->pts = frame_pts;
1065 do_audio_out(of->ctx, ost, filtered_frame);
1068 // TODO support subtitle filters
1072 avfilter_unref_buffer(picref);
1079 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1082 AVBPrint buf_script;
1084 AVFormatContext *oc;
1086 AVCodecContext *enc;
1087 int frame_number, vid, i;
1089 int64_t pts = INT64_MIN;
1090 static int64_t last_time = -1;
1091 static int qp_histogram[52];
1092 int hours, mins, secs, us;
1094 if (!print_stats && !is_last_report && !progress_avio)
1097 if (!is_last_report) {
1098 if (last_time == -1) {
1099 last_time = cur_time;
1102 if ((cur_time - last_time) < 500000)
1104 last_time = cur_time;
1108 oc = output_files[0]->ctx;
1110 total_size = avio_size(oc->pb);
1111 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1112 total_size = avio_tell(oc->pb);
1116 av_bprint_init(&buf_script, 0, 1);
1117 for (i = 0; i < nb_output_streams; i++) {
1119 ost = output_streams[i];
1120 enc = ost->st->codec;
1121 if (!ost->stream_copy && enc->coded_frame)
1122 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1123 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1124 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1125 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1126 ost->file_index, ost->index, q);
1128 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1129 float fps, t = (cur_time-timer_start) / 1000000.0;
1131 frame_number = ost->frame_number;
1132 fps = t > 1 ? frame_number / t : 0;
1133 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1134 frame_number, fps < 9.95, fps, q);
1135 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1136 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1137 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1138 ost->file_index, ost->index, q);
1140 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1144 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1146 for (j = 0; j < 32; j++)
1147 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1149 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1151 double error, error_sum = 0;
1152 double scale, scale_sum = 0;
1154 char type[3] = { 'Y','U','V' };
1155 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1156 for (j = 0; j < 3; j++) {
1157 if (is_last_report) {
1158 error = enc->error[j];
1159 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1161 error = enc->coded_frame->error[j];
1162 scale = enc->width * enc->height * 255.0 * 255.0;
1168 p = psnr(error / scale);
1169 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1170 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1171 ost->file_index, ost->index, type[i] | 32, p);
1173 p = psnr(error_sum / scale_sum);
1174 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1175 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1176 ost->file_index, ost->index, p);
1180 /* compute min output value */
1181 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1182 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1183 ost->st->time_base, AV_TIME_BASE_Q));
1186 secs = pts / AV_TIME_BASE;
1187 us = pts % AV_TIME_BASE;
1193 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1195 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1197 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1198 "size=%8.0fkB time=", total_size / 1024.0);
1199 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1200 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1201 (100 * us) / AV_TIME_BASE);
1202 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1204 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1205 "bitrate=%6.1fkbits/s", bitrate);
1206 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1207 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1208 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1209 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1210 hours, mins, secs, us);
1212 if (nb_frames_dup || nb_frames_drop)
1213 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1214 nb_frames_dup, nb_frames_drop);
1215 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1216 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1218 if (print_stats || is_last_report) {
1219 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1224 if (progress_avio) {
1225 av_bprintf(&buf_script, "progress=%s\n",
1226 is_last_report ? "end" : "continue");
1227 avio_write(progress_avio, buf_script.str,
1228 FFMIN(buf_script.len, buf_script.size - 1));
1229 avio_flush(progress_avio);
1230 av_bprint_finalize(&buf_script, NULL);
1231 if (is_last_report) {
1232 avio_close(progress_avio);
1233 progress_avio = NULL;
1237 if (is_last_report) {
1238 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1239 av_log(NULL, AV_LOG_INFO, "\n");
1240 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1241 video_size / 1024.0,
1242 audio_size / 1024.0,
1243 subtitle_size / 1024.0,
1244 extra_size / 1024.0,
1245 100.0 * (total_size - raw) / raw
1247 if(video_size + audio_size + subtitle_size + extra_size == 0){
1248 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1253 static void flush_encoders(void)
1257 for (i = 0; i < nb_output_streams; i++) {
1258 OutputStream *ost = output_streams[i];
1259 AVCodecContext *enc = ost->st->codec;
1260 AVFormatContext *os = output_files[ost->file_index]->ctx;
1261 int stop_encoding = 0;
1263 if (!ost->encoding_needed)
1266 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1268 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1272 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1276 switch (ost->st->codec->codec_type) {
1277 case AVMEDIA_TYPE_AUDIO:
1278 encode = avcodec_encode_audio2;
1282 case AVMEDIA_TYPE_VIDEO:
1283 encode = avcodec_encode_video2;
1294 av_init_packet(&pkt);
1298 update_benchmark(NULL);
1299 ret = encode(enc, &pkt, NULL, &got_packet);
1300 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1302 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1306 if (ost->logfile && enc->stats_out) {
1307 fprintf(ost->logfile, "%s", enc->stats_out);
1313 if (pkt.pts != AV_NOPTS_VALUE)
1314 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1315 if (pkt.dts != AV_NOPTS_VALUE)
1316 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1317 if (pkt.duration > 0)
1318 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1319 write_frame(os, &pkt, ost);
1320 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1321 do_video_stats(ost, pkt.size);
1332 * Check whether a packet from ist should be written into ost at this time
1334 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1336 OutputFile *of = output_files[ost->file_index];
1337 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1339 if (ost->source_index != ist_index)
1342 if (of->start_time && ist->pts < of->start_time)
1348 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1350 OutputFile *of = output_files[ost->file_index];
1351 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1355 av_init_packet(&opkt);
1357 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1358 !ost->copy_initial_nonkeyframes)
1361 if (!ost->frame_number && ist->pts < of->start_time &&
1362 !ost->copy_prior_start)
1365 if (of->recording_time != INT64_MAX &&
1366 ist->pts >= of->recording_time + of->start_time) {
1367 close_output_stream(ost);
1371 /* force the input stream PTS */
1372 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1373 audio_size += pkt->size;
1374 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1375 video_size += pkt->size;
1377 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1378 subtitle_size += pkt->size;
1381 if (pkt->pts != AV_NOPTS_VALUE)
1382 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1384 opkt.pts = AV_NOPTS_VALUE;
1386 if (pkt->dts == AV_NOPTS_VALUE)
1387 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1389 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1390 opkt.dts -= ost_tb_start_time;
1392 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1393 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1395 duration = ist->st->codec->frame_size;
1396 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1397 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1398 ost->st->time_base) - ost_tb_start_time;
1401 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1402 opkt.flags = pkt->flags;
1404 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1405 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1406 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1407 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1408 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1410 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1411 opkt.destruct = av_destruct_packet;
1413 opkt.data = pkt->data;
1414 opkt.size = pkt->size;
1417 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1418 /* store AVPicture in AVPacket, as expected by the output format */
1419 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1420 opkt.data = (uint8_t *)&pict;
1421 opkt.size = sizeof(AVPicture);
1422 opkt.flags |= AV_PKT_FLAG_KEY;
1425 write_frame(of->ctx, &opkt, ost);
1426 ost->st->codec->frame_number++;
1429 static void rate_emu_sleep(InputStream *ist)
1431 if (input_files[ist->file_index]->rate_emu) {
1432 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1433 int64_t now = av_gettime() - ist->start;
1435 av_usleep(pts - now);
1439 int guess_input_channel_layout(InputStream *ist)
1441 AVCodecContext *dec = ist->st->codec;
1443 if (!dec->channel_layout) {
1444 char layout_name[256];
1446 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1447 if (!dec->channel_layout)
1449 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1450 dec->channels, dec->channel_layout);
1451 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1452 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1457 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1459 AVFrame *decoded_frame;
1460 AVCodecContext *avctx = ist->st->codec;
1461 int i, ret, resample_changed;
1462 AVRational decoded_frame_tb;
1464 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1465 return AVERROR(ENOMEM);
1466 decoded_frame = ist->decoded_frame;
1468 update_benchmark(NULL);
1469 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1470 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1472 if (ret >= 0 && avctx->sample_rate <= 0) {
1473 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1474 ret = AVERROR_INVALIDDATA;
1477 if (!*got_output || ret < 0) {
1479 for (i = 0; i < ist->nb_filters; i++)
1480 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1486 /* increment next_dts to use for the case where the input stream does not
1487 have timestamps or there are multiple frames in the packet */
1488 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1490 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1494 rate_emu_sleep(ist);
1496 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1497 ist->resample_channels != avctx->channels ||
1498 ist->resample_channel_layout != decoded_frame->channel_layout ||
1499 ist->resample_sample_rate != decoded_frame->sample_rate;
1500 if (resample_changed) {
1501 char layout1[64], layout2[64];
1503 if (!guess_input_channel_layout(ist)) {
1504 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1505 "layout for Input Stream #%d.%d\n", ist->file_index,
1509 decoded_frame->channel_layout = avctx->channel_layout;
1511 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1512 ist->resample_channel_layout);
1513 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1514 decoded_frame->channel_layout);
1516 av_log(NULL, AV_LOG_INFO,
1517 "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",
1518 ist->file_index, ist->st->index,
1519 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1520 ist->resample_channels, layout1,
1521 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1522 avctx->channels, layout2);
1524 ist->resample_sample_fmt = decoded_frame->format;
1525 ist->resample_sample_rate = decoded_frame->sample_rate;
1526 ist->resample_channel_layout = decoded_frame->channel_layout;
1527 ist->resample_channels = avctx->channels;
1529 for (i = 0; i < nb_filtergraphs; i++)
1530 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1531 FilterGraph *fg = filtergraphs[i];
1533 if (configure_filtergraph(fg) < 0) {
1534 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1537 for (j = 0; j < fg->nb_outputs; j++) {
1538 OutputStream *ost = fg->outputs[j]->ost;
1539 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1540 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1541 av_buffersink_set_frame_size(ost->filter->filter,
1542 ost->st->codec->frame_size);
1547 /* if the decoder provides a pts, use it instead of the last packet pts.
1548 the decoder could be delaying output by a packet or more. */
1549 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1550 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1551 decoded_frame_tb = avctx->time_base;
1552 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1553 decoded_frame->pts = decoded_frame->pkt_pts;
1554 pkt->pts = AV_NOPTS_VALUE;
1555 decoded_frame_tb = ist->st->time_base;
1556 } else if (pkt->pts != AV_NOPTS_VALUE) {
1557 decoded_frame->pts = pkt->pts;
1558 pkt->pts = AV_NOPTS_VALUE;
1559 decoded_frame_tb = ist->st->time_base;
1561 decoded_frame->pts = ist->dts;
1562 decoded_frame_tb = AV_TIME_BASE_Q;
1564 if (decoded_frame->pts != AV_NOPTS_VALUE)
1565 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1566 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1567 (AVRational){1, ist->st->codec->sample_rate});
1568 for (i = 0; i < ist->nb_filters; i++)
1569 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1570 AV_BUFFERSRC_FLAG_PUSH);
1572 decoded_frame->pts = AV_NOPTS_VALUE;
1577 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1579 AVFrame *decoded_frame;
1580 void *buffer_to_free = NULL;
1581 int i, ret = 0, resample_changed;
1582 int64_t best_effort_timestamp;
1583 AVRational *frame_sample_aspect;
1585 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1586 return AVERROR(ENOMEM);
1587 decoded_frame = ist->decoded_frame;
1588 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1590 update_benchmark(NULL);
1591 ret = avcodec_decode_video2(ist->st->codec,
1592 decoded_frame, got_output, pkt);
1593 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1594 if (!*got_output || ret < 0) {
1596 for (i = 0; i < ist->nb_filters; i++)
1597 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1602 if(ist->top_field_first>=0)
1603 decoded_frame->top_field_first = ist->top_field_first;
1605 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1606 if(best_effort_timestamp != AV_NOPTS_VALUE)
1607 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1610 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1611 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1612 ist->st->index, av_ts2str(decoded_frame->pts),
1613 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1614 best_effort_timestamp,
1615 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1616 decoded_frame->key_frame, decoded_frame->pict_type);
1620 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1622 rate_emu_sleep(ist);
1624 if (ist->st->sample_aspect_ratio.num)
1625 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1627 resample_changed = ist->resample_width != decoded_frame->width ||
1628 ist->resample_height != decoded_frame->height ||
1629 ist->resample_pix_fmt != decoded_frame->format;
1630 if (resample_changed) {
1631 av_log(NULL, AV_LOG_INFO,
1632 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1633 ist->file_index, ist->st->index,
1634 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1635 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1637 ist->resample_width = decoded_frame->width;
1638 ist->resample_height = decoded_frame->height;
1639 ist->resample_pix_fmt = decoded_frame->format;
1641 for (i = 0; i < nb_filtergraphs; i++) {
1642 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1643 configure_filtergraph(filtergraphs[i]) < 0) {
1644 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1650 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1651 for (i = 0; i < ist->nb_filters; i++) {
1652 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1653 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1654 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1656 if (!frame_sample_aspect->num)
1657 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1658 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1659 FrameBuffer *buf = decoded_frame->opaque;
1660 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1661 decoded_frame->data, decoded_frame->linesize,
1662 AV_PERM_READ | AV_PERM_PRESERVE,
1663 ist->st->codec->width, ist->st->codec->height,
1664 ist->st->codec->pix_fmt);
1666 avfilter_copy_frame_props(fb, decoded_frame);
1667 fb->buf->priv = buf;
1668 fb->buf->free = filter_release_buffer;
1670 av_assert0(buf->refcount>0);
1672 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1673 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1674 AV_BUFFERSRC_FLAG_NO_COPY |
1675 AV_BUFFERSRC_FLAG_PUSH);
1677 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1678 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1684 av_free(buffer_to_free);
1688 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1690 AVSubtitle subtitle;
1691 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1692 &subtitle, got_output, pkt);
1693 if (ret < 0 || !*got_output) {
1695 sub2video_flush(ist);
1699 if (ist->fix_sub_duration) {
1700 if (ist->prev_sub.got_output) {
1701 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1702 1000, AV_TIME_BASE);
1703 if (end < ist->prev_sub.subtitle.end_display_time) {
1704 av_log(ist->st->codec, AV_LOG_DEBUG,
1705 "Subtitle duration reduced from %d to %d\n",
1706 ist->prev_sub.subtitle.end_display_time, end);
1707 ist->prev_sub.subtitle.end_display_time = end;
1710 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1711 FFSWAP(int, ret, ist->prev_sub.ret);
1712 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1715 sub2video_update(ist, &subtitle);
1717 if (!*got_output || !subtitle.num_rects)
1720 rate_emu_sleep(ist);
1722 for (i = 0; i < nb_output_streams; i++) {
1723 OutputStream *ost = output_streams[i];
1725 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1728 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1731 avsubtitle_free(&subtitle);
1735 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1736 static int output_packet(InputStream *ist, const AVPacket *pkt)
1742 if (!ist->saw_first_ts) {
1743 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;
1745 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1746 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1747 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1749 ist->saw_first_ts = 1;
1752 if (ist->next_dts == AV_NOPTS_VALUE)
1753 ist->next_dts = ist->dts;
1754 if (ist->next_pts == AV_NOPTS_VALUE)
1755 ist->next_pts = ist->pts;
1759 av_init_packet(&avpkt);
1767 if (pkt->dts != AV_NOPTS_VALUE) {
1768 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1769 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1770 ist->next_pts = ist->pts = ist->dts;
1773 // while we have more to decode or while the decoder did output something on EOF
1774 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1778 ist->pts = ist->next_pts;
1779 ist->dts = ist->next_dts;
1781 if (avpkt.size && avpkt.size != pkt->size) {
1782 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1783 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1784 ist->showed_multi_packet_warning = 1;
1787 switch (ist->st->codec->codec_type) {
1788 case AVMEDIA_TYPE_AUDIO:
1789 ret = decode_audio (ist, &avpkt, &got_output);
1791 case AVMEDIA_TYPE_VIDEO:
1792 ret = decode_video (ist, &avpkt, &got_output);
1793 if (avpkt.duration) {
1794 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1795 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1796 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1797 duration = ((int64_t)AV_TIME_BASE *
1798 ist->st->codec->time_base.num * ticks) /
1799 ist->st->codec->time_base.den;
1803 if(ist->dts != AV_NOPTS_VALUE && duration) {
1804 ist->next_dts += duration;
1806 ist->next_dts = AV_NOPTS_VALUE;
1809 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1811 case AVMEDIA_TYPE_SUBTITLE:
1812 ret = transcode_subtitles(ist, &avpkt, &got_output);
1822 avpkt.pts= AV_NOPTS_VALUE;
1824 // touch data and size only if not EOF
1826 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1836 /* handle stream copy */
1837 if (!ist->decoding_needed) {
1838 rate_emu_sleep(ist);
1839 ist->dts = ist->next_dts;
1840 switch (ist->st->codec->codec_type) {
1841 case AVMEDIA_TYPE_AUDIO:
1842 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1843 ist->st->codec->sample_rate;
1845 case AVMEDIA_TYPE_VIDEO:
1846 if (pkt->duration) {
1847 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1848 } else if(ist->st->codec->time_base.num != 0) {
1849 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1850 ist->next_dts += ((int64_t)AV_TIME_BASE *
1851 ist->st->codec->time_base.num * ticks) /
1852 ist->st->codec->time_base.den;
1856 ist->pts = ist->dts;
1857 ist->next_pts = ist->next_dts;
1859 for (i = 0; pkt && i < nb_output_streams; i++) {
1860 OutputStream *ost = output_streams[i];
1862 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1865 do_streamcopy(ist, ost, pkt);
1871 static void print_sdp(void)
1875 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1879 for (i = 0; i < nb_output_files; i++)
1880 avc[i] = output_files[i]->ctx;
1882 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1883 printf("SDP:\n%s\n", sdp);
1888 static int init_input_stream(int ist_index, char *error, int error_len)
1891 InputStream *ist = input_streams[ist_index];
1893 if (ist->decoding_needed) {
1894 AVCodec *codec = ist->dec;
1896 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1897 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1898 return AVERROR(EINVAL);
1901 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1902 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1903 ist->st->codec->get_buffer = codec_get_buffer;
1904 ist->st->codec->release_buffer = codec_release_buffer;
1905 ist->st->codec->opaque = &ist->buffer_pool;
1908 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1909 av_dict_set(&ist->opts, "threads", "auto", 0);
1910 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1911 if (ret == AVERROR_EXPERIMENTAL)
1912 abort_codec_experimental(codec, 0);
1913 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1914 ist->file_index, ist->st->index);
1917 assert_avoptions(ist->opts);
1920 ist->next_pts = AV_NOPTS_VALUE;
1921 ist->next_dts = AV_NOPTS_VALUE;
1927 static InputStream *get_input_stream(OutputStream *ost)
1929 if (ost->source_index >= 0)
1930 return input_streams[ost->source_index];
1934 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1935 AVCodecContext *avctx)
1941 for (p = kf; *p; p++)
1944 ost->forced_kf_count = n;
1945 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1946 if (!ost->forced_kf_pts) {
1947 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1952 for (i = 0; i < n; i++) {
1953 char *next = strchr(p, ',');
1958 t = parse_time_or_die("force_key_frames", p, 1);
1959 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1965 static void report_new_stream(int input_index, AVPacket *pkt)
1967 InputFile *file = input_files[input_index];
1968 AVStream *st = file->ctx->streams[pkt->stream_index];
1970 if (pkt->stream_index < file->nb_streams_warn)
1972 av_log(file->ctx, AV_LOG_WARNING,
1973 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1974 av_get_media_type_string(st->codec->codec_type),
1975 input_index, pkt->stream_index,
1976 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1977 file->nb_streams_warn = pkt->stream_index + 1;
1980 static int transcode_init(void)
1982 int ret = 0, i, j, k;
1983 AVFormatContext *oc;
1984 AVCodecContext *codec;
1990 /* init framerate emulation */
1991 for (i = 0; i < nb_input_files; i++) {
1992 InputFile *ifile = input_files[i];
1993 if (ifile->rate_emu)
1994 for (j = 0; j < ifile->nb_streams; j++)
1995 input_streams[j + ifile->ist_index]->start = av_gettime();
1998 /* output stream init */
1999 for (i = 0; i < nb_output_files; i++) {
2000 oc = output_files[i]->ctx;
2001 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2002 av_dump_format(oc, i, oc->filename, 1);
2003 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2004 return AVERROR(EINVAL);
2008 /* init complex filtergraphs */
2009 for (i = 0; i < nb_filtergraphs; i++)
2010 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2013 /* for each output stream, we compute the right encoding parameters */
2014 for (i = 0; i < nb_output_streams; i++) {
2015 AVCodecContext *icodec = NULL;
2016 ost = output_streams[i];
2017 oc = output_files[ost->file_index]->ctx;
2018 ist = get_input_stream(ost);
2020 if (ost->attachment_filename)
2023 codec = ost->st->codec;
2026 icodec = ist->st->codec;
2028 ost->st->disposition = ist->st->disposition;
2029 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2030 codec->chroma_sample_location = icodec->chroma_sample_location;
2033 if (ost->stream_copy) {
2034 uint64_t extra_size;
2036 av_assert0(ist && !ost->filter);
2038 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2040 if (extra_size > INT_MAX) {
2041 return AVERROR(EINVAL);
2044 /* if stream_copy is selected, no need to decode or encode */
2045 codec->codec_id = icodec->codec_id;
2046 codec->codec_type = icodec->codec_type;
2048 if (!codec->codec_tag) {
2049 if (!oc->oformat->codec_tag ||
2050 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2051 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2052 codec->codec_tag = icodec->codec_tag;
2055 codec->bit_rate = icodec->bit_rate;
2056 codec->rc_max_rate = icodec->rc_max_rate;
2057 codec->rc_buffer_size = icodec->rc_buffer_size;
2058 codec->field_order = icodec->field_order;
2059 codec->extradata = av_mallocz(extra_size);
2060 if (!codec->extradata) {
2061 return AVERROR(ENOMEM);
2063 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2064 codec->extradata_size= icodec->extradata_size;
2065 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2067 codec->time_base = ist->st->time_base;
2069 * Avi is a special case here because it supports variable fps but
2070 * having the fps and timebase differe significantly adds quite some
2073 if(!strcmp(oc->oformat->name, "avi")) {
2074 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2075 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2076 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2077 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2079 codec->time_base.num = ist->st->r_frame_rate.den;
2080 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2081 codec->ticks_per_frame = 2;
2082 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2083 && av_q2d(ist->st->time_base) < 1.0/500
2085 codec->time_base = icodec->time_base;
2086 codec->time_base.num *= icodec->ticks_per_frame;
2087 codec->time_base.den *= 2;
2088 codec->ticks_per_frame = 2;
2090 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2091 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2092 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2093 && strcmp(oc->oformat->name, "f4v")
2095 if( copy_tb<0 && icodec->time_base.den
2096 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2097 && av_q2d(ist->st->time_base) < 1.0/500
2099 codec->time_base = icodec->time_base;
2100 codec->time_base.num *= icodec->ticks_per_frame;
2104 if(ost->frame_rate.num)
2105 codec->time_base = av_inv_q(ost->frame_rate);
2107 av_reduce(&codec->time_base.num, &codec->time_base.den,
2108 codec->time_base.num, codec->time_base.den, INT_MAX);
2110 switch (codec->codec_type) {
2111 case AVMEDIA_TYPE_AUDIO:
2112 if (audio_volume != 256) {
2113 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2116 codec->channel_layout = icodec->channel_layout;
2117 codec->sample_rate = icodec->sample_rate;
2118 codec->channels = icodec->channels;
2119 codec->frame_size = icodec->frame_size;
2120 codec->audio_service_type = icodec->audio_service_type;
2121 codec->block_align = icodec->block_align;
2122 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2123 codec->block_align= 0;
2124 if(codec->codec_id == AV_CODEC_ID_AC3)
2125 codec->block_align= 0;
2127 case AVMEDIA_TYPE_VIDEO:
2128 codec->pix_fmt = icodec->pix_fmt;
2129 codec->width = icodec->width;
2130 codec->height = icodec->height;
2131 codec->has_b_frames = icodec->has_b_frames;
2132 if (!codec->sample_aspect_ratio.num) {
2133 codec->sample_aspect_ratio =
2134 ost->st->sample_aspect_ratio =
2135 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2136 ist->st->codec->sample_aspect_ratio.num ?
2137 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2139 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2141 case AVMEDIA_TYPE_SUBTITLE:
2142 codec->width = icodec->width;
2143 codec->height = icodec->height;
2145 case AVMEDIA_TYPE_DATA:
2146 case AVMEDIA_TYPE_ATTACHMENT:
2153 ost->enc = avcodec_find_encoder(codec->codec_id);
2155 /* should only happen when a default codec is not present. */
2156 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2157 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2158 ret = AVERROR(EINVAL);
2163 ist->decoding_needed++;
2164 ost->encoding_needed = 1;
2167 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2168 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2170 fg = init_simple_filtergraph(ist, ost);
2171 if (configure_filtergraph(fg)) {
2172 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2177 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2178 if (ost->filter && !ost->frame_rate.num)
2179 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2180 if (ist && !ost->frame_rate.num)
2181 ost->frame_rate = ist->framerate;
2182 if (ist && !ost->frame_rate.num)
2183 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2184 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2185 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2186 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2187 ost->frame_rate = ost->enc->supported_framerates[idx];
2191 switch (codec->codec_type) {
2192 case AVMEDIA_TYPE_AUDIO:
2193 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2194 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2195 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2196 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2197 codec->time_base = (AVRational){ 1, codec->sample_rate };
2199 case AVMEDIA_TYPE_VIDEO:
2200 codec->time_base = av_inv_q(ost->frame_rate);
2201 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2202 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2203 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2204 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2205 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2206 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2208 for (j = 0; j < ost->forced_kf_count; j++)
2209 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2213 codec->width = ost->filter->filter->inputs[0]->w;
2214 codec->height = ost->filter->filter->inputs[0]->h;
2215 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2216 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2217 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2218 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2219 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2222 codec->width != icodec->width ||
2223 codec->height != icodec->height ||
2224 codec->pix_fmt != icodec->pix_fmt) {
2225 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2228 if (ost->forced_keyframes)
2229 parse_forced_key_frames(ost->forced_keyframes, ost,
2232 case AVMEDIA_TYPE_SUBTITLE:
2233 codec->time_base = (AVRational){1, 1000};
2234 if (!codec->width) {
2235 codec->width = input_streams[ost->source_index]->st->codec->width;
2236 codec->height = input_streams[ost->source_index]->st->codec->height;
2244 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2245 char logfilename[1024];
2248 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2249 ost->logfile_prefix ? ost->logfile_prefix :
2250 DEFAULT_PASS_LOGFILENAME_PREFIX,
2252 if (!strcmp(ost->enc->name, "libx264")) {
2253 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2255 if (codec->flags & CODEC_FLAG_PASS2) {
2257 size_t logbuffer_size;
2258 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2259 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2263 codec->stats_in = logbuffer;
2265 if (codec->flags & CODEC_FLAG_PASS1) {
2266 f = fopen(logfilename, "wb");
2268 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2269 logfilename, strerror(errno));
2279 /* open each encoder */
2280 for (i = 0; i < nb_output_streams; i++) {
2281 ost = output_streams[i];
2282 if (ost->encoding_needed) {
2283 AVCodec *codec = ost->enc;
2284 AVCodecContext *dec = NULL;
2286 if ((ist = get_input_stream(ost)))
2287 dec = ist->st->codec;
2288 if (dec && dec->subtitle_header) {
2289 /* ASS code assumes this buffer is null terminated so add extra byte. */
2290 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2291 if (!ost->st->codec->subtitle_header) {
2292 ret = AVERROR(ENOMEM);
2295 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2296 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2298 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2299 av_dict_set(&ost->opts, "threads", "auto", 0);
2300 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2301 if (ret == AVERROR_EXPERIMENTAL)
2302 abort_codec_experimental(codec, 1);
2303 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2304 ost->file_index, ost->index);
2307 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2308 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2309 av_buffersink_set_frame_size(ost->filter->filter,
2310 ost->st->codec->frame_size);
2311 assert_avoptions(ost->opts);
2312 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2313 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2314 " It takes bits/s as argument, not kbits/s\n");
2315 extra_size += ost->st->codec->extradata_size;
2317 if (ost->st->codec->me_threshold)
2318 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2322 /* init input streams */
2323 for (i = 0; i < nb_input_streams; i++)
2324 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2327 /* discard unused programs */
2328 for (i = 0; i < nb_input_files; i++) {
2329 InputFile *ifile = input_files[i];
2330 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2331 AVProgram *p = ifile->ctx->programs[j];
2332 int discard = AVDISCARD_ALL;
2334 for (k = 0; k < p->nb_stream_indexes; k++)
2335 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2336 discard = AVDISCARD_DEFAULT;
2339 p->discard = discard;
2343 /* open files and write file headers */
2344 for (i = 0; i < nb_output_files; i++) {
2345 oc = output_files[i]->ctx;
2346 oc->interrupt_callback = int_cb;
2347 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2349 const char *errbuf_ptr = errbuf;
2350 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2351 errbuf_ptr = strerror(AVUNERROR(ret));
2352 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2353 ret = AVERROR(EINVAL);
2356 // assert_avoptions(output_files[i]->opts);
2357 if (strcmp(oc->oformat->name, "rtp")) {
2363 /* dump the file output parameters - cannot be done before in case
2365 for (i = 0; i < nb_output_files; i++) {
2366 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2369 /* dump the stream mapping */
2370 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2371 for (i = 0; i < nb_input_streams; i++) {
2372 ist = input_streams[i];
2374 for (j = 0; j < ist->nb_filters; j++) {
2375 if (ist->filters[j]->graph->graph_desc) {
2376 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2377 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2378 ist->filters[j]->name);
2379 if (nb_filtergraphs > 1)
2380 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2381 av_log(NULL, AV_LOG_INFO, "\n");
2386 for (i = 0; i < nb_output_streams; i++) {
2387 ost = output_streams[i];
2389 if (ost->attachment_filename) {
2390 /* an attached file */
2391 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2392 ost->attachment_filename, ost->file_index, ost->index);
2396 if (ost->filter && ost->filter->graph->graph_desc) {
2397 /* output from a complex graph */
2398 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2399 if (nb_filtergraphs > 1)
2400 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2402 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2403 ost->index, ost->enc ? ost->enc->name : "?");
2407 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2408 input_streams[ost->source_index]->file_index,
2409 input_streams[ost->source_index]->st->index,
2412 if (ost->sync_ist != input_streams[ost->source_index])
2413 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2414 ost->sync_ist->file_index,
2415 ost->sync_ist->st->index);
2416 if (ost->stream_copy)
2417 av_log(NULL, AV_LOG_INFO, " (copy)");
2419 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2420 input_streams[ost->source_index]->dec->name : "?",
2421 ost->enc ? ost->enc->name : "?");
2422 av_log(NULL, AV_LOG_INFO, "\n");
2426 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2437 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2438 static int need_output(void)
2442 for (i = 0; i < nb_output_streams; i++) {
2443 OutputStream *ost = output_streams[i];
2444 OutputFile *of = output_files[ost->file_index];
2445 AVFormatContext *os = output_files[ost->file_index]->ctx;
2447 if (ost->finished ||
2448 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2450 if (ost->frame_number >= ost->max_frames) {
2452 for (j = 0; j < of->ctx->nb_streams; j++)
2453 close_output_stream(output_streams[of->ost_index + j]);
2464 * Select the output stream to process.
2466 * @return selected output stream, or NULL if none available
2468 static OutputStream *choose_output(void)
2471 int64_t opts_min = INT64_MAX;
2472 OutputStream *ost_min = NULL;
2474 for (i = 0; i < nb_output_streams; i++) {
2475 OutputStream *ost = output_streams[i];
2476 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2478 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2486 static int check_keyboard_interaction(int64_t cur_time)
2489 static int64_t last_time;
2490 if (received_nb_signals)
2491 return AVERROR_EXIT;
2492 /* read_key() returns 0 on EOF */
2493 if(cur_time - last_time >= 100000 && !run_as_daemon){
2495 last_time = cur_time;
2499 return AVERROR_EXIT;
2500 if (key == '+') av_log_set_level(av_log_get_level()+10);
2501 if (key == '-') av_log_set_level(av_log_get_level()-10);
2502 if (key == 's') qp_hist ^= 1;
2505 do_hex_dump = do_pkt_dump = 0;
2506 } else if(do_pkt_dump){
2510 av_log_set_level(AV_LOG_DEBUG);
2512 if (key == 'c' || key == 'C'){
2513 char buf[4096], target[64], command[256], arg[256] = {0};
2516 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2518 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2523 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2524 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2525 target, time, command, arg);
2526 for (i = 0; i < nb_filtergraphs; i++) {
2527 FilterGraph *fg = filtergraphs[i];
2530 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2531 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2532 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2534 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2539 av_log(NULL, AV_LOG_ERROR,
2540 "Parse error, at least 3 arguments were expected, "
2541 "only %d given in string '%s'\n", n, buf);
2544 if (key == 'd' || key == 'D'){
2547 debug = input_streams[0]->st->codec->debug<<1;
2548 if(!debug) debug = 1;
2549 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2552 if(scanf("%d", &debug)!=1)
2553 fprintf(stderr,"error parsing debug value\n");
2554 for(i=0;i<nb_input_streams;i++) {
2555 input_streams[i]->st->codec->debug = debug;
2557 for(i=0;i<nb_output_streams;i++) {
2558 OutputStream *ost = output_streams[i];
2559 ost->st->codec->debug = debug;
2561 if(debug) av_log_set_level(AV_LOG_DEBUG);
2562 fprintf(stderr,"debug=%d\n", debug);
2565 fprintf(stderr, "key function\n"
2566 "? show this help\n"
2567 "+ increase verbosity\n"
2568 "- decrease verbosity\n"
2569 "c Send command to filtergraph\n"
2570 "D cycle through available debug modes\n"
2571 "h dump packets/hex press to cycle through the 3 states\n"
2573 "s Show QP histogram\n"
2580 static void *input_thread(void *arg)
2585 while (!transcoding_finished && ret >= 0) {
2587 ret = av_read_frame(f->ctx, &pkt);
2589 if (ret == AVERROR(EAGAIN)) {
2596 pthread_mutex_lock(&f->fifo_lock);
2597 while (!av_fifo_space(f->fifo))
2598 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2600 av_dup_packet(&pkt);
2601 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2603 pthread_mutex_unlock(&f->fifo_lock);
2610 static void free_input_threads(void)
2614 if (nb_input_files == 1)
2617 transcoding_finished = 1;
2619 for (i = 0; i < nb_input_files; i++) {
2620 InputFile *f = input_files[i];
2623 if (!f->fifo || f->joined)
2626 pthread_mutex_lock(&f->fifo_lock);
2627 while (av_fifo_size(f->fifo)) {
2628 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2629 av_free_packet(&pkt);
2631 pthread_cond_signal(&f->fifo_cond);
2632 pthread_mutex_unlock(&f->fifo_lock);
2634 pthread_join(f->thread, NULL);
2637 while (av_fifo_size(f->fifo)) {
2638 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2639 av_free_packet(&pkt);
2641 av_fifo_free(f->fifo);
2645 static int init_input_threads(void)
2649 if (nb_input_files == 1)
2652 for (i = 0; i < nb_input_files; i++) {
2653 InputFile *f = input_files[i];
2655 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2656 return AVERROR(ENOMEM);
2658 pthread_mutex_init(&f->fifo_lock, NULL);
2659 pthread_cond_init (&f->fifo_cond, NULL);
2661 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2662 return AVERROR(ret);
2667 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2671 pthread_mutex_lock(&f->fifo_lock);
2673 if (av_fifo_size(f->fifo)) {
2674 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2675 pthread_cond_signal(&f->fifo_cond);
2680 ret = AVERROR(EAGAIN);
2683 pthread_mutex_unlock(&f->fifo_lock);
2689 static int get_input_packet(InputFile *f, AVPacket *pkt)
2692 if (nb_input_files > 1)
2693 return get_input_packet_mt(f, pkt);
2695 return av_read_frame(f->ctx, pkt);
2698 static int got_eagain(void)
2701 for (i = 0; i < nb_output_streams; i++)
2702 if (output_streams[i]->unavailable)
2707 static void reset_eagain(void)
2710 for (i = 0; i < nb_input_files; i++)
2711 input_files[i]->eagain = 0;
2712 for (i = 0; i < nb_output_streams; i++)
2713 output_streams[i]->unavailable = 0;
2718 * - 0 -- one packet was read and processed
2719 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2720 * this function should be called again
2721 * - AVERROR_EOF -- this function should not be called again
2723 static int process_input(int file_index)
2725 InputFile *ifile = input_files[file_index];
2726 AVFormatContext *is;
2732 ret = get_input_packet(ifile, &pkt);
2734 if (ret == AVERROR(EAGAIN)) {
2739 if (ret != AVERROR_EOF) {
2740 print_error(is->filename, ret);
2744 ifile->eof_reached = 1;
2746 for (i = 0; i < ifile->nb_streams; i++) {
2747 ist = input_streams[ifile->ist_index + i];
2748 if (ist->decoding_needed)
2749 output_packet(ist, NULL);
2751 /* mark all outputs that don't go through lavfi as finished */
2752 for (j = 0; j < nb_output_streams; j++) {
2753 OutputStream *ost = output_streams[j];
2755 if (ost->source_index == ifile->ist_index + i &&
2756 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2757 close_output_stream(ost);
2761 return AVERROR(EAGAIN);
2767 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2768 is->streams[pkt.stream_index]);
2770 /* the following test is needed in case new streams appear
2771 dynamically in stream : we ignore them */
2772 if (pkt.stream_index >= ifile->nb_streams) {
2773 report_new_stream(file_index, &pkt);
2774 goto discard_packet;
2777 ist = input_streams[ifile->ist_index + pkt.stream_index];
2779 goto discard_packet;
2782 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2783 "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",
2784 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2785 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2786 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2787 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2788 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2789 av_ts2str(input_files[ist->file_index]->ts_offset),
2790 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2793 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2794 int64_t stime, stime2;
2795 // Correcting starttime based on the enabled streams
2796 // 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.
2797 // so we instead do it here as part of discontinuity handling
2798 if ( ist->next_dts == AV_NOPTS_VALUE
2799 && ifile->ts_offset == -is->start_time
2800 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2801 int64_t new_start_time = INT64_MAX;
2802 for (i=0; i<is->nb_streams; i++) {
2803 AVStream *st = is->streams[i];
2804 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2806 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2808 if (new_start_time > is->start_time) {
2809 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2810 ifile->ts_offset = -new_start_time;
2814 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2815 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2816 ist->wrap_correction_done = 1;
2818 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2819 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2820 ist->wrap_correction_done = 0;
2822 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2823 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2824 ist->wrap_correction_done = 0;
2828 if (pkt.dts != AV_NOPTS_VALUE)
2829 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2830 if (pkt.pts != AV_NOPTS_VALUE)
2831 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2833 if (pkt.pts != AV_NOPTS_VALUE)
2834 pkt.pts *= ist->ts_scale;
2835 if (pkt.dts != AV_NOPTS_VALUE)
2836 pkt.dts *= ist->ts_scale;
2838 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2840 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2841 int64_t delta = pkt_dts - ist->next_dts;
2842 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2843 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2844 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2845 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2846 pkt_dts+1<ist->pts){
2847 ifile->ts_offset -= delta;
2848 av_log(NULL, AV_LOG_DEBUG,
2849 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2850 delta, ifile->ts_offset);
2851 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2852 if (pkt.pts != AV_NOPTS_VALUE)
2853 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2856 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2857 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2859 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2860 pkt.dts = AV_NOPTS_VALUE;
2862 if (pkt.pts != AV_NOPTS_VALUE){
2863 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2864 delta = pkt_pts - ist->next_dts;
2865 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2866 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2868 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2869 pkt.pts = AV_NOPTS_VALUE;
2876 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",
2877 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2878 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2879 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2880 av_ts2str(input_files[ist->file_index]->ts_offset),
2881 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2884 sub2video_heartbeat(ist, pkt.pts);
2886 ret = output_packet(ist, &pkt);
2889 av_strerror(ret, buf, sizeof(buf));
2890 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2891 ist->file_index, ist->st->index, buf);
2897 av_free_packet(&pkt);
2903 * Perform a step of transcoding for the specified filter graph.
2905 * @param[in] graph filter graph to consider
2906 * @param[out] best_ist input stream where a frame would allow to continue
2907 * @return 0 for success, <0 for error
2909 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2912 int nb_requests, nb_requests_max = 0;
2913 InputFilter *ifilter;
2917 ret = avfilter_graph_request_oldest(graph->graph);
2919 return reap_filters();
2921 if (ret == AVERROR_EOF) {
2922 ret = reap_filters();
2923 for (i = 0; i < graph->nb_outputs; i++)
2924 close_output_stream(graph->outputs[i]->ost);
2927 if (ret != AVERROR(EAGAIN))
2930 for (i = 0; i < graph->nb_inputs; i++) {
2931 ifilter = graph->inputs[i];
2933 if (input_files[ist->file_index]->eagain ||
2934 input_files[ist->file_index]->eof_reached)
2936 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2937 if (nb_requests > nb_requests_max) {
2938 nb_requests_max = nb_requests;
2944 for (i = 0; i < graph->nb_outputs; i++)
2945 graph->outputs[i]->ost->unavailable = 1;
2951 * Run a single step of transcoding.
2953 * @return 0 for success, <0 for error
2955 static int transcode_step(void)
2961 ost = choose_output();
2968 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2973 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2978 av_assert0(ost->source_index >= 0);
2979 ist = input_streams[ost->source_index];
2982 ret = process_input(ist->file_index);
2983 if (ret == AVERROR(EAGAIN)) {
2984 if (input_files[ist->file_index]->eagain)
2985 ost->unavailable = 1;
2989 return ret == AVERROR_EOF ? 0 : ret;
2991 return reap_filters();
2995 * The following code is the main loop of the file converter
2997 static int transcode(void)
3000 AVFormatContext *os;
3003 int64_t timer_start;
3005 ret = transcode_init();
3009 if (stdin_interaction) {
3010 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3013 timer_start = av_gettime();
3016 if ((ret = init_input_threads()) < 0)
3020 while (!received_sigterm) {
3021 int64_t cur_time= av_gettime();
3023 /* if 'q' pressed, exits */
3024 if (stdin_interaction)
3025 if (check_keyboard_interaction(cur_time) < 0)
3028 /* check if there's any stream where output is still needed */
3029 if (!need_output()) {
3030 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3034 ret = transcode_step();
3036 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3039 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3043 /* dump report by using the output first video and audio streams */
3044 print_report(0, timer_start, cur_time);
3047 free_input_threads();
3050 /* at the end of stream, we must flush the decoder buffers */
3051 for (i = 0; i < nb_input_streams; i++) {
3052 ist = input_streams[i];
3053 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3054 output_packet(ist, NULL);
3061 /* write the trailer if needed and close file */
3062 for (i = 0; i < nb_output_files; i++) {
3063 os = output_files[i]->ctx;
3064 av_write_trailer(os);
3067 /* dump report by using the first video and audio streams */
3068 print_report(1, timer_start, av_gettime());
3070 /* close each encoder */
3071 for (i = 0; i < nb_output_streams; i++) {
3072 ost = output_streams[i];
3073 if (ost->encoding_needed) {
3074 av_freep(&ost->st->codec->stats_in);
3075 avcodec_close(ost->st->codec);
3079 /* close each decoder */
3080 for (i = 0; i < nb_input_streams; i++) {
3081 ist = input_streams[i];
3082 if (ist->decoding_needed) {
3083 avcodec_close(ist->st->codec);
3092 free_input_threads();
3095 if (output_streams) {
3096 for (i = 0; i < nb_output_streams; i++) {
3097 ost = output_streams[i];
3099 if (ost->stream_copy)
3100 av_freep(&ost->st->codec->extradata);
3102 fclose(ost->logfile);
3103 ost->logfile = NULL;
3105 av_freep(&ost->st->codec->subtitle_header);
3106 av_free(ost->forced_kf_pts);
3107 av_dict_free(&ost->opts);
3115 static int64_t getutime(void)
3118 struct rusage rusage;
3120 getrusage(RUSAGE_SELF, &rusage);
3121 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3122 #elif HAVE_GETPROCESSTIMES
3124 FILETIME c, e, k, u;
3125 proc = GetCurrentProcess();
3126 GetProcessTimes(proc, &c, &e, &k, &u);
3127 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3129 return av_gettime();
3133 static int64_t getmaxrss(void)
3135 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3136 struct rusage rusage;
3137 getrusage(RUSAGE_SELF, &rusage);
3138 return (int64_t)rusage.ru_maxrss * 1024;
3139 #elif HAVE_GETPROCESSMEMORYINFO
3141 PROCESS_MEMORY_COUNTERS memcounters;
3142 proc = GetCurrentProcess();
3143 memcounters.cb = sizeof(memcounters);
3144 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3145 return memcounters.PeakPagefileUsage;
3151 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3155 int main(int argc, char **argv)
3160 atexit(exit_program);
3162 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3164 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3165 parse_loglevel(argc, argv, options);
3167 if(argc>1 && !strcmp(argv[1], "-d")){
3169 av_log_set_callback(log_callback_null);
3174 avcodec_register_all();
3176 avdevice_register_all();
3178 avfilter_register_all();
3180 avformat_network_init();
3182 show_banner(argc, argv, options);
3186 /* parse options and open all input/output files */
3187 ret = ffmpeg_parse_options(argc, argv);
3191 if (nb_output_files <= 0 && nb_input_files == 0) {
3193 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3197 /* file converter / grab */
3198 if (nb_output_files <= 0) {
3199 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3203 // if (nb_input_files == 0) {
3204 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3208 current_time = ti = getutime();
3209 if (transcode() < 0)
3211 ti = getutime() - ti;
3213 int maxrss = getmaxrss() / 1024;
3214 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);