2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libswresample/swresample.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/channel_layout.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/samplefmt.h"
49 #include "libavutil/colorspace.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/intreadwrite.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/mathematics.h"
54 #include "libavutil/pixdesc.h"
55 #include "libavutil/avstring.h"
56 #include "libavutil/libm.h"
57 #include "libavutil/imgutils.h"
58 #include "libavutil/timestamp.h"
59 #include "libavutil/bprint.h"
60 #include "libavutil/time.h"
61 #include "libavformat/os_support.h"
63 #include "libavformat/ffm.h" // not public API
65 # include "libavfilter/avcodec.h"
66 # include "libavfilter/avfilter.h"
67 # include "libavfilter/avfiltergraph.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 const char *const forced_keyframes_const_names[] = {
121 static void do_video_stats(OutputStream *ost, int frame_size);
122 static int64_t getutime(void);
124 static int run_as_daemon = 0;
125 static int64_t video_size = 0;
126 static int64_t audio_size = 0;
127 static int64_t subtitle_size = 0;
128 static int64_t extra_size = 0;
129 static int nb_frames_dup = 0;
130 static int nb_frames_drop = 0;
132 static int current_time;
133 AVIOContext *progress_avio = NULL;
135 static uint8_t *subtitle_out;
138 /* signal to input threads that they should exit; set by the main thread */
139 static int transcoding_finished;
142 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
144 InputStream **input_streams = NULL;
145 int nb_input_streams = 0;
146 InputFile **input_files = NULL;
147 int nb_input_files = 0;
149 OutputStream **output_streams = NULL;
150 int nb_output_streams = 0;
151 OutputFile **output_files = NULL;
152 int nb_output_files = 0;
154 FilterGraph **filtergraphs;
159 /* init terminal so that we can grab keys */
160 static struct termios oldtty;
161 static int restore_tty;
166 Convert subtitles to video with alpha to insert them in filter graphs.
167 This is a temporary solution until libavfilter gets real subtitles support.
172 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
175 uint32_t *pal, *dst2;
179 if (r->type != SUBTITLE_BITMAP) {
180 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
183 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
184 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
188 dst += r->y * dst_linesize + r->x * 4;
189 src = r->pict.data[0];
190 pal = (uint32_t *)r->pict.data[1];
191 for (y = 0; y < r->h; y++) {
192 dst2 = (uint32_t *)dst;
194 for (x = 0; x < r->w; x++)
195 *(dst2++) = pal[*(src2++)];
197 src += r->pict.linesize[0];
201 static void sub2video_push_ref(InputStream *ist, int64_t pts)
203 AVFilterBufferRef *ref = ist->sub2video.ref;
206 ist->sub2video.last_pts = ref->pts = pts;
207 for (i = 0; i < ist->nb_filters; i++)
208 av_buffersrc_add_ref(ist->filters[i]->filter,
209 avfilter_ref_buffer(ref, ~0),
210 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
211 AV_BUFFERSRC_FLAG_NO_COPY |
212 AV_BUFFERSRC_FLAG_PUSH);
215 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
217 int w = ist->sub2video.w, h = ist->sub2video.h;
218 AVFilterBufferRef *ref = ist->sub2video.ref;
222 int64_t pts, end_pts;
227 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
228 AV_TIME_BASE_Q, ist->st->time_base);
229 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
230 AV_TIME_BASE_Q, ist->st->time_base);
231 num_rects = sub->num_rects;
233 pts = ist->sub2video.end_pts;
238 dst_linesize = ref->linesize[0];
239 memset(dst, 0, h * dst_linesize);
240 for (i = 0; i < num_rects; i++)
241 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
242 sub2video_push_ref(ist, pts);
243 ist->sub2video.end_pts = end_pts;
246 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
248 InputFile *infile = input_files[ist->file_index];
252 /* When a frame is read from a file, examine all sub2video streams in
253 the same file and send the sub2video frame again. Otherwise, decoded
254 video frames could be accumulating in the filter graph while a filter
255 (possibly overlay) is desperately waiting for a subtitle frame. */
256 for (i = 0; i < infile->nb_streams; i++) {
257 InputStream *ist2 = input_streams[infile->ist_index + i];
258 if (!ist2->sub2video.ref)
260 /* subtitles seem to be usually muxed ahead of other streams;
261 if not, substracting a larger time here is necessary */
262 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
263 /* do not send the heartbeat frame if the subtitle is already ahead */
264 if (pts2 <= ist2->sub2video.last_pts)
266 if (pts2 >= ist2->sub2video.end_pts)
267 sub2video_update(ist2, NULL);
268 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
269 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
271 sub2video_push_ref(ist2, pts2);
275 static void sub2video_flush(InputStream *ist)
279 for (i = 0; i < ist->nb_filters; i++)
280 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
283 /* end of sub2video hack */
287 av_log(NULL, AV_LOG_QUIET, "%s", "");
290 tcsetattr (0, TCSANOW, &oldtty);
294 static volatile int received_sigterm = 0;
295 static volatile int received_nb_signals = 0;
298 sigterm_handler(int sig)
300 received_sigterm = sig;
301 received_nb_signals++;
303 if(received_nb_signals > 3)
314 istty = isatty(0) && isatty(2);
316 if (istty && tcgetattr (0, &tty) == 0) {
321 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
322 |INLCR|IGNCR|ICRNL|IXON);
323 tty.c_oflag |= OPOST;
324 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
325 tty.c_cflag &= ~(CSIZE|PARENB);
330 tcsetattr (0, TCSANOW, &tty);
332 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
335 avformat_network_deinit();
337 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
338 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
340 signal(SIGXCPU, sigterm_handler);
344 /* read a key without blocking */
345 static int read_key(void)
357 n = select(1, &rfds, NULL, NULL, &tv);
366 # if HAVE_PEEKNAMEDPIPE
368 static HANDLE input_handle;
371 input_handle = GetStdHandle(STD_INPUT_HANDLE);
372 is_pipe = !GetConsoleMode(input_handle, &dw);
375 if (stdin->_cnt > 0) {
380 /* When running under a GUI, you will end here. */
381 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
382 // input pipe may have been closed by the program that ran ffmpeg
400 static int decode_interrupt_cb(void *ctx)
402 return received_nb_signals > 1;
405 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
407 static void exit_program(void)
411 for (i = 0; i < nb_filtergraphs; i++) {
412 avfilter_graph_free(&filtergraphs[i]->graph);
413 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
414 av_freep(&filtergraphs[i]->inputs[j]->name);
415 av_freep(&filtergraphs[i]->inputs[j]);
417 av_freep(&filtergraphs[i]->inputs);
418 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
419 av_freep(&filtergraphs[i]->outputs[j]->name);
420 av_freep(&filtergraphs[i]->outputs[j]);
422 av_freep(&filtergraphs[i]->outputs);
423 av_freep(&filtergraphs[i]);
425 av_freep(&filtergraphs);
427 av_freep(&subtitle_out);
430 for (i = 0; i < nb_output_files; i++) {
431 AVFormatContext *s = output_files[i]->ctx;
432 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
434 avformat_free_context(s);
435 av_dict_free(&output_files[i]->opts);
436 av_freep(&output_files[i]);
438 for (i = 0; i < nb_output_streams; i++) {
439 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
441 AVBitStreamFilterContext *next = bsfc->next;
442 av_bitstream_filter_close(bsfc);
445 output_streams[i]->bitstream_filters = NULL;
446 avcodec_free_frame(&output_streams[i]->filtered_frame);
448 av_freep(&output_streams[i]->forced_keyframes);
449 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
450 av_freep(&output_streams[i]->avfilter);
451 av_freep(&output_streams[i]->logfile_prefix);
452 av_freep(&output_streams[i]);
454 for (i = 0; i < nb_input_files; i++) {
455 avformat_close_input(&input_files[i]->ctx);
456 av_freep(&input_files[i]);
458 for (i = 0; i < nb_input_streams; i++) {
459 avcodec_free_frame(&input_streams[i]->decoded_frame);
460 av_dict_free(&input_streams[i]->opts);
461 free_buffer_pool(&input_streams[i]->buffer_pool);
462 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
463 av_freep(&input_streams[i]->filters);
464 av_freep(&input_streams[i]);
469 av_free(vstats_filename);
471 av_freep(&input_streams);
472 av_freep(&input_files);
473 av_freep(&output_streams);
474 av_freep(&output_files);
479 avformat_network_deinit();
481 if (received_sigterm) {
482 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
483 (int) received_sigterm);
487 void assert_avoptions(AVDictionary *m)
489 AVDictionaryEntry *t;
490 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
491 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
496 static void abort_codec_experimental(AVCodec *c, int encoder)
501 static void update_benchmark(const char *fmt, ...)
503 if (do_benchmark_all) {
504 int64_t t = getutime();
510 vsnprintf(buf, sizeof(buf), fmt, va);
512 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
518 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
520 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
521 AVCodecContext *avctx = ost->st->codec;
524 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
525 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
526 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
528 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
529 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
530 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
531 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
532 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
533 if(pkt->pts >= pkt->dts)
534 pkt->pts = FFMAX(pkt->pts, max);
540 * Audio encoders may split the packets -- #frames in != #packets out.
541 * But there is no reordering, so we can limit the number of output packets
542 * by simply dropping them here.
543 * Counting encoded video frames needs to be done separately because of
544 * reordering, see do_video_out()
546 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
547 if (ost->frame_number >= ost->max_frames) {
555 AVPacket new_pkt = *pkt;
556 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
557 &new_pkt.data, &new_pkt.size,
558 pkt->data, pkt->size,
559 pkt->flags & AV_PKT_FLAG_KEY);
560 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
561 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
563 memcpy(t, new_pkt.data, new_pkt.size);
564 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
572 new_pkt.destruct = av_destruct_packet;
574 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
575 bsfc->filter->name, pkt->stream_index,
576 avctx->codec ? avctx->codec->name : "copy");
586 pkt->stream_index = ost->index;
589 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
590 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
591 av_get_media_type_string(ost->st->codec->codec_type),
592 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
593 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
598 ret = av_interleaved_write_frame(s, pkt);
600 print_error("av_interleaved_write_frame()", ret);
605 static void close_output_stream(OutputStream *ost)
607 OutputFile *of = output_files[ost->file_index];
611 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
612 of->recording_time = FFMIN(of->recording_time, end);
616 static int check_recording_time(OutputStream *ost)
618 OutputFile *of = output_files[ost->file_index];
620 if (of->recording_time != INT64_MAX &&
621 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
622 AV_TIME_BASE_Q) >= 0) {
623 close_output_stream(ost);
629 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
632 AVCodecContext *enc = ost->st->codec;
636 av_init_packet(&pkt);
640 if (!check_recording_time(ost))
643 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
644 frame->pts = ost->sync_opts;
645 ost->sync_opts = frame->pts + frame->nb_samples;
647 av_assert0(pkt.size || !pkt.data);
648 update_benchmark(NULL);
649 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
650 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
653 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
656 if (pkt.pts != AV_NOPTS_VALUE)
657 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
658 if (pkt.dts != AV_NOPTS_VALUE)
659 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
660 if (pkt.duration > 0)
661 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
664 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
665 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
666 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
667 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
670 audio_size += pkt.size;
671 write_frame(s, &pkt, ost);
673 av_free_packet(&pkt);
677 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
681 AVPicture picture_tmp;
684 dec = ist->st->codec;
686 /* deinterlace : must be done before any resize */
687 if (do_deinterlace) {
690 /* create temporary picture */
691 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
694 buf = av_malloc(size);
698 picture2 = &picture_tmp;
699 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
701 if (avpicture_deinterlace(picture2, picture,
702 dec->pix_fmt, dec->width, dec->height) < 0) {
703 /* if error, do not deinterlace */
704 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
713 if (picture != picture2)
714 *picture = *picture2;
718 static void do_subtitle_out(AVFormatContext *s,
723 int subtitle_out_max_size = 1024 * 1024;
724 int subtitle_out_size, nb, i;
729 if (sub->pts == AV_NOPTS_VALUE) {
730 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
736 enc = ost->st->codec;
739 subtitle_out = av_malloc(subtitle_out_max_size);
742 /* Note: DVB subtitle need one packet to draw them and one other
743 packet to clear them */
744 /* XXX: signal it in the codec context ? */
745 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
750 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
751 pts = sub->pts - output_files[ost->file_index]->start_time;
752 for (i = 0; i < nb; i++) {
753 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
754 if (!check_recording_time(ost))
758 // start_display_time is required to be 0
759 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
760 sub->end_display_time -= sub->start_display_time;
761 sub->start_display_time = 0;
764 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
765 subtitle_out_max_size, sub);
766 if (subtitle_out_size < 0) {
767 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
771 av_init_packet(&pkt);
772 pkt.data = subtitle_out;
773 pkt.size = subtitle_out_size;
774 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
775 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
776 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
777 /* XXX: the pts correction is handled here. Maybe handling
778 it in the codec would be better */
780 pkt.pts += 90 * sub->start_display_time;
782 pkt.pts += 90 * sub->end_display_time;
784 subtitle_size += pkt.size;
785 write_frame(s, &pkt, ost);
789 static void do_video_out(AVFormatContext *s,
793 int ret, format_video_sync;
795 AVCodecContext *enc = ost->st->codec;
797 double sync_ipts, delta;
800 InputStream *ist = NULL;
802 if (ost->source_index >= 0)
803 ist = input_streams[ost->source_index];
805 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
806 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
808 sync_ipts = in_picture->pts;
809 delta = sync_ipts - ost->sync_opts + duration;
811 /* by default, we output a single frame */
814 format_video_sync = video_sync_method;
815 if (format_video_sync == VSYNC_AUTO)
816 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
818 switch (format_video_sync) {
820 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
823 else if (delta > 1.1)
824 nb_frames = lrintf(delta);
829 else if (delta > 0.6)
830 ost->sync_opts = lrint(sync_ipts);
833 case VSYNC_PASSTHROUGH:
834 ost->sync_opts = lrint(sync_ipts);
840 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
841 if (nb_frames == 0) {
843 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
845 } else if (nb_frames > 1) {
846 if (nb_frames > dts_error_threshold * 30) {
847 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
851 nb_frames_dup += nb_frames - 1;
852 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
855 /* duplicates frame if needed */
856 for (i = 0; i < nb_frames; i++) {
857 av_init_packet(&pkt);
861 in_picture->pts = ost->sync_opts;
863 if (!check_recording_time(ost))
866 if (s->oformat->flags & AVFMT_RAWPICTURE &&
867 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
868 /* raw pictures are written as AVPicture structure to
869 avoid any copies. We support temporarily the older
871 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
872 enc->coded_frame->top_field_first = in_picture->top_field_first;
873 if (enc->coded_frame->interlaced_frame)
874 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
876 enc->field_order = AV_FIELD_PROGRESSIVE;
877 pkt.data = (uint8_t *)in_picture;
878 pkt.size = sizeof(AVPicture);
879 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
880 pkt.flags |= AV_PKT_FLAG_KEY;
882 video_size += pkt.size;
883 write_frame(s, &pkt, ost);
885 int got_packet, forced_keyframe = 0;
889 big_picture = *in_picture;
890 /* better than nothing: use input picture interlaced
892 big_picture.interlaced_frame = in_picture->interlaced_frame;
893 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
894 if (ost->top_field_first == -1)
895 big_picture.top_field_first = in_picture->top_field_first;
897 big_picture.top_field_first = !!ost->top_field_first;
900 if (big_picture.interlaced_frame) {
901 if (enc->codec->id == AV_CODEC_ID_MJPEG)
902 enc->field_order = big_picture.top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
904 enc->field_order = big_picture.top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
906 enc->field_order = AV_FIELD_PROGRESSIVE;
908 big_picture.quality = ost->st->codec->global_quality;
909 if (!enc->me_threshold)
910 big_picture.pict_type = 0;
912 pts_time = big_picture.pts != AV_NOPTS_VALUE ?
913 big_picture.pts * av_q2d(enc->time_base) : NAN;
914 if (ost->forced_kf_index < ost->forced_kf_count &&
915 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
916 ost->forced_kf_index++;
918 } else if (ost->forced_keyframes_pexpr) {
920 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
921 res = av_expr_eval(ost->forced_keyframes_pexpr,
922 ost->forced_keyframes_expr_const_values, NULL);
923 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
924 ost->forced_keyframes_expr_const_values[FKF_N],
925 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
926 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
927 ost->forced_keyframes_expr_const_values[FKF_T],
928 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
932 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
933 ost->forced_keyframes_expr_const_values[FKF_N];
934 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
935 ost->forced_keyframes_expr_const_values[FKF_T];
936 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
939 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
941 if (forced_keyframe) {
942 big_picture.pict_type = AV_PICTURE_TYPE_I;
943 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
946 update_benchmark(NULL);
947 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
948 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
950 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
955 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
956 pkt.pts = ost->sync_opts;
958 if (pkt.pts != AV_NOPTS_VALUE)
959 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
960 if (pkt.dts != AV_NOPTS_VALUE)
961 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
964 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
965 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
966 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
967 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
970 frame_size = pkt.size;
971 video_size += pkt.size;
972 write_frame(s, &pkt, ost);
973 av_free_packet(&pkt);
975 /* if two pass, output log */
976 if (ost->logfile && enc->stats_out) {
977 fprintf(ost->logfile, "%s", enc->stats_out);
983 * For video, number of frames in == number of packets out.
984 * But there may be reordering, so we can't throw away frames on encoder
985 * flush, we need to limit them here, before they go into encoder.
990 if (vstats_filename && frame_size)
991 do_video_stats(ost, frame_size);
994 static double psnr(double d)
996 return -10.0 * log(d) / log(10.0);
999 static void do_video_stats(OutputStream *ost, int frame_size)
1001 AVCodecContext *enc;
1003 double ti1, bitrate, avg_bitrate;
1005 /* this is executed just the first time do_video_stats is called */
1007 vstats_file = fopen(vstats_filename, "w");
1014 enc = ost->st->codec;
1015 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1016 frame_number = ost->st->nb_frames;
1017 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1018 if (enc->flags&CODEC_FLAG_PSNR)
1019 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1021 fprintf(vstats_file,"f_size= %6d ", frame_size);
1022 /* compute pts value */
1023 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1027 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1028 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1029 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1030 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1031 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1036 * Get and encode new output from any of the filtergraphs, without causing
1039 * @return 0 for success, <0 for severe errors
1041 static int reap_filters(void)
1043 AVFilterBufferRef *picref;
1044 AVFrame *filtered_frame = NULL;
1048 /* Reap all buffers present in the buffer sinks */
1049 for (i = 0; i < nb_output_streams; i++) {
1050 OutputStream *ost = output_streams[i];
1051 OutputFile *of = output_files[ost->file_index];
1057 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1058 return AVERROR(ENOMEM);
1060 avcodec_get_frame_defaults(ost->filtered_frame);
1061 filtered_frame = ost->filtered_frame;
1064 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1065 AV_BUFFERSINK_FLAG_NO_REQUEST);
1067 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1069 av_strerror(ret, buf, sizeof(buf));
1070 av_log(NULL, AV_LOG_WARNING,
1071 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1075 frame_pts = AV_NOPTS_VALUE;
1076 if (picref->pts != AV_NOPTS_VALUE) {
1077 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1078 ost->filter->filter->inputs[0]->time_base,
1079 ost->st->codec->time_base) -
1080 av_rescale_q(of->start_time,
1082 ost->st->codec->time_base);
1084 if (of->start_time && filtered_frame->pts < 0) {
1085 avfilter_unref_buffer(picref);
1089 //if (ost->source_index >= 0)
1090 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1093 switch (ost->filter->filter->inputs[0]->type) {
1094 case AVMEDIA_TYPE_VIDEO:
1095 avfilter_copy_buf_props(filtered_frame, picref);
1096 filtered_frame->pts = frame_pts;
1097 if (!ost->frame_aspect_ratio)
1098 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1100 do_video_out(of->ctx, ost, filtered_frame);
1102 case AVMEDIA_TYPE_AUDIO:
1103 avfilter_copy_buf_props(filtered_frame, picref);
1104 filtered_frame->pts = frame_pts;
1105 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1106 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1107 av_log(NULL, AV_LOG_ERROR,
1108 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1111 do_audio_out(of->ctx, ost, filtered_frame);
1114 // TODO support subtitle filters
1118 avfilter_unref_buffer(picref);
1125 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1128 AVBPrint buf_script;
1130 AVFormatContext *oc;
1132 AVCodecContext *enc;
1133 int frame_number, vid, i;
1135 int64_t pts = INT64_MIN;
1136 static int64_t last_time = -1;
1137 static int qp_histogram[52];
1138 int hours, mins, secs, us;
1140 if (!print_stats && !is_last_report && !progress_avio)
1143 if (!is_last_report) {
1144 if (last_time == -1) {
1145 last_time = cur_time;
1148 if ((cur_time - last_time) < 500000)
1150 last_time = cur_time;
1154 oc = output_files[0]->ctx;
1156 total_size = avio_size(oc->pb);
1157 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1158 total_size = avio_tell(oc->pb);
1162 av_bprint_init(&buf_script, 0, 1);
1163 for (i = 0; i < nb_output_streams; i++) {
1165 ost = output_streams[i];
1166 enc = ost->st->codec;
1167 if (!ost->stream_copy && enc->coded_frame)
1168 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1169 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1170 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1171 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1172 ost->file_index, ost->index, q);
1174 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1175 float fps, t = (cur_time-timer_start) / 1000000.0;
1177 frame_number = ost->frame_number;
1178 fps = t > 1 ? frame_number / t : 0;
1179 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1180 frame_number, fps < 9.95, fps, q);
1181 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1182 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1183 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1184 ost->file_index, ost->index, q);
1186 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1190 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1192 for (j = 0; j < 32; j++)
1193 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1195 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1197 double error, error_sum = 0;
1198 double scale, scale_sum = 0;
1200 char type[3] = { 'Y','U','V' };
1201 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1202 for (j = 0; j < 3; j++) {
1203 if (is_last_report) {
1204 error = enc->error[j];
1205 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1207 error = enc->coded_frame->error[j];
1208 scale = enc->width * enc->height * 255.0 * 255.0;
1214 p = psnr(error / scale);
1215 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1216 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1217 ost->file_index, ost->index, type[i] | 32, p);
1219 p = psnr(error_sum / scale_sum);
1220 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1221 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1222 ost->file_index, ost->index, p);
1226 /* compute min output value */
1227 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1228 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1229 ost->st->time_base, AV_TIME_BASE_Q));
1232 secs = pts / AV_TIME_BASE;
1233 us = pts % AV_TIME_BASE;
1239 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1241 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1243 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1244 "size=%8.0fkB time=", total_size / 1024.0);
1245 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1246 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1247 (100 * us) / AV_TIME_BASE);
1248 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1250 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1251 "bitrate=%6.1fkbits/s", bitrate);
1252 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1253 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1254 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1255 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1256 hours, mins, secs, us);
1258 if (nb_frames_dup || nb_frames_drop)
1259 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1260 nb_frames_dup, nb_frames_drop);
1261 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1262 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1264 if (print_stats || is_last_report) {
1265 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1270 if (progress_avio) {
1271 av_bprintf(&buf_script, "progress=%s\n",
1272 is_last_report ? "end" : "continue");
1273 avio_write(progress_avio, buf_script.str,
1274 FFMIN(buf_script.len, buf_script.size - 1));
1275 avio_flush(progress_avio);
1276 av_bprint_finalize(&buf_script, NULL);
1277 if (is_last_report) {
1278 avio_close(progress_avio);
1279 progress_avio = NULL;
1283 if (is_last_report) {
1284 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1285 av_log(NULL, AV_LOG_INFO, "\n");
1286 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1287 video_size / 1024.0,
1288 audio_size / 1024.0,
1289 subtitle_size / 1024.0,
1290 extra_size / 1024.0,
1291 100.0 * (total_size - raw) / raw
1293 if(video_size + audio_size + subtitle_size + extra_size == 0){
1294 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1299 static void flush_encoders(void)
1303 for (i = 0; i < nb_output_streams; i++) {
1304 OutputStream *ost = output_streams[i];
1305 AVCodecContext *enc = ost->st->codec;
1306 AVFormatContext *os = output_files[ost->file_index]->ctx;
1307 int stop_encoding = 0;
1309 if (!ost->encoding_needed)
1312 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1314 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1318 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1322 switch (ost->st->codec->codec_type) {
1323 case AVMEDIA_TYPE_AUDIO:
1324 encode = avcodec_encode_audio2;
1328 case AVMEDIA_TYPE_VIDEO:
1329 encode = avcodec_encode_video2;
1340 av_init_packet(&pkt);
1344 update_benchmark(NULL);
1345 ret = encode(enc, &pkt, NULL, &got_packet);
1346 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1348 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1352 if (ost->logfile && enc->stats_out) {
1353 fprintf(ost->logfile, "%s", enc->stats_out);
1359 if (pkt.pts != AV_NOPTS_VALUE)
1360 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1361 if (pkt.dts != AV_NOPTS_VALUE)
1362 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1363 if (pkt.duration > 0)
1364 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1365 write_frame(os, &pkt, ost);
1366 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1367 do_video_stats(ost, pkt.size);
1378 * Check whether a packet from ist should be written into ost at this time
1380 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1382 OutputFile *of = output_files[ost->file_index];
1383 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1385 if (ost->source_index != ist_index)
1388 if (of->start_time && ist->pts < of->start_time)
1394 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1396 OutputFile *of = output_files[ost->file_index];
1397 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1401 av_init_packet(&opkt);
1403 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1404 !ost->copy_initial_nonkeyframes)
1407 if (!ost->frame_number && ist->pts < of->start_time &&
1408 !ost->copy_prior_start)
1411 if (of->recording_time != INT64_MAX &&
1412 ist->pts >= of->recording_time + of->start_time) {
1413 close_output_stream(ost);
1417 /* force the input stream PTS */
1418 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1419 audio_size += pkt->size;
1420 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1421 video_size += pkt->size;
1423 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1424 subtitle_size += pkt->size;
1427 if (pkt->pts != AV_NOPTS_VALUE)
1428 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1430 opkt.pts = AV_NOPTS_VALUE;
1432 if (pkt->dts == AV_NOPTS_VALUE)
1433 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1435 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1436 opkt.dts -= ost_tb_start_time;
1438 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1439 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1441 duration = ist->st->codec->frame_size;
1442 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1443 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1444 ost->st->time_base) - ost_tb_start_time;
1447 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1448 opkt.flags = pkt->flags;
1450 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1451 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1452 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1453 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1454 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1456 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1457 opkt.destruct = av_destruct_packet;
1459 opkt.data = pkt->data;
1460 opkt.size = pkt->size;
1463 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1464 /* store AVPicture in AVPacket, as expected by the output format */
1465 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1466 opkt.data = (uint8_t *)&pict;
1467 opkt.size = sizeof(AVPicture);
1468 opkt.flags |= AV_PKT_FLAG_KEY;
1471 write_frame(of->ctx, &opkt, ost);
1472 ost->st->codec->frame_number++;
1475 static void rate_emu_sleep(InputStream *ist)
1477 if (input_files[ist->file_index]->rate_emu) {
1478 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1479 int64_t now = av_gettime() - ist->start;
1481 av_usleep(pts - now);
1485 int guess_input_channel_layout(InputStream *ist)
1487 AVCodecContext *dec = ist->st->codec;
1489 if (!dec->channel_layout) {
1490 char layout_name[256];
1492 if (dec->channels > ist->guess_layout_max)
1494 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1495 if (!dec->channel_layout)
1497 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1498 dec->channels, dec->channel_layout);
1499 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1500 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1505 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1507 AVFrame *decoded_frame;
1508 AVCodecContext *avctx = ist->st->codec;
1509 int i, ret, resample_changed;
1510 AVRational decoded_frame_tb;
1512 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1513 return AVERROR(ENOMEM);
1514 decoded_frame = ist->decoded_frame;
1516 update_benchmark(NULL);
1517 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1518 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1520 if (ret >= 0 && avctx->sample_rate <= 0) {
1521 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1522 ret = AVERROR_INVALIDDATA;
1525 if (!*got_output || ret < 0) {
1527 for (i = 0; i < ist->nb_filters; i++)
1528 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1534 /* increment next_dts to use for the case where the input stream does not
1535 have timestamps or there are multiple frames in the packet */
1536 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1538 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1542 rate_emu_sleep(ist);
1544 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1545 ist->resample_channels != avctx->channels ||
1546 ist->resample_channel_layout != decoded_frame->channel_layout ||
1547 ist->resample_sample_rate != decoded_frame->sample_rate;
1548 if (resample_changed) {
1549 char layout1[64], layout2[64];
1551 if (!guess_input_channel_layout(ist)) {
1552 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1553 "layout for Input Stream #%d.%d\n", ist->file_index,
1557 decoded_frame->channel_layout = avctx->channel_layout;
1559 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1560 ist->resample_channel_layout);
1561 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1562 decoded_frame->channel_layout);
1564 av_log(NULL, AV_LOG_INFO,
1565 "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",
1566 ist->file_index, ist->st->index,
1567 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1568 ist->resample_channels, layout1,
1569 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1570 avctx->channels, layout2);
1572 ist->resample_sample_fmt = decoded_frame->format;
1573 ist->resample_sample_rate = decoded_frame->sample_rate;
1574 ist->resample_channel_layout = decoded_frame->channel_layout;
1575 ist->resample_channels = avctx->channels;
1577 for (i = 0; i < nb_filtergraphs; i++)
1578 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1579 FilterGraph *fg = filtergraphs[i];
1581 if (configure_filtergraph(fg) < 0) {
1582 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1585 for (j = 0; j < fg->nb_outputs; j++) {
1586 OutputStream *ost = fg->outputs[j]->ost;
1587 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1588 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1589 av_buffersink_set_frame_size(ost->filter->filter,
1590 ost->st->codec->frame_size);
1595 /* if the decoder provides a pts, use it instead of the last packet pts.
1596 the decoder could be delaying output by a packet or more. */
1597 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1598 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1599 decoded_frame_tb = avctx->time_base;
1600 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1601 decoded_frame->pts = decoded_frame->pkt_pts;
1602 pkt->pts = AV_NOPTS_VALUE;
1603 decoded_frame_tb = ist->st->time_base;
1604 } else if (pkt->pts != AV_NOPTS_VALUE) {
1605 decoded_frame->pts = pkt->pts;
1606 pkt->pts = AV_NOPTS_VALUE;
1607 decoded_frame_tb = ist->st->time_base;
1609 decoded_frame->pts = ist->dts;
1610 decoded_frame_tb = AV_TIME_BASE_Q;
1612 if (decoded_frame->pts != AV_NOPTS_VALUE)
1613 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1614 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1615 (AVRational){1, ist->st->codec->sample_rate});
1616 for (i = 0; i < ist->nb_filters; i++)
1617 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1618 AV_BUFFERSRC_FLAG_PUSH);
1620 decoded_frame->pts = AV_NOPTS_VALUE;
1625 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1627 AVFrame *decoded_frame;
1628 void *buffer_to_free = NULL;
1629 int i, ret = 0, resample_changed;
1630 int64_t best_effort_timestamp;
1631 AVRational *frame_sample_aspect;
1633 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1634 return AVERROR(ENOMEM);
1635 decoded_frame = ist->decoded_frame;
1636 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1638 update_benchmark(NULL);
1639 ret = avcodec_decode_video2(ist->st->codec,
1640 decoded_frame, got_output, pkt);
1641 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1642 if (!*got_output || ret < 0) {
1644 for (i = 0; i < ist->nb_filters; i++)
1645 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1650 if(ist->top_field_first>=0)
1651 decoded_frame->top_field_first = ist->top_field_first;
1653 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1654 if(best_effort_timestamp != AV_NOPTS_VALUE)
1655 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1658 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1659 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1660 ist->st->index, av_ts2str(decoded_frame->pts),
1661 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1662 best_effort_timestamp,
1663 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1664 decoded_frame->key_frame, decoded_frame->pict_type);
1668 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1670 rate_emu_sleep(ist);
1672 if (ist->st->sample_aspect_ratio.num)
1673 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1675 resample_changed = ist->resample_width != decoded_frame->width ||
1676 ist->resample_height != decoded_frame->height ||
1677 ist->resample_pix_fmt != decoded_frame->format;
1678 if (resample_changed) {
1679 av_log(NULL, AV_LOG_INFO,
1680 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1681 ist->file_index, ist->st->index,
1682 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1683 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1685 ist->resample_width = decoded_frame->width;
1686 ist->resample_height = decoded_frame->height;
1687 ist->resample_pix_fmt = decoded_frame->format;
1689 for (i = 0; i < nb_filtergraphs; i++) {
1690 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1691 configure_filtergraph(filtergraphs[i]) < 0) {
1692 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1698 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1699 for (i = 0; i < ist->nb_filters; i++) {
1700 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1701 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1702 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1704 if (!frame_sample_aspect->num)
1705 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1706 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1707 FrameBuffer *buf = decoded_frame->opaque;
1708 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1709 decoded_frame->data, decoded_frame->linesize,
1710 AV_PERM_READ | AV_PERM_PRESERVE,
1711 ist->st->codec->width, ist->st->codec->height,
1712 ist->st->codec->pix_fmt);
1714 avfilter_copy_frame_props(fb, decoded_frame);
1715 fb->buf->priv = buf;
1716 fb->buf->free = filter_release_buffer;
1718 av_assert0(buf->refcount>0);
1720 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1721 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1722 AV_BUFFERSRC_FLAG_NO_COPY |
1723 AV_BUFFERSRC_FLAG_PUSH);
1725 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1726 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1732 av_free(buffer_to_free);
1736 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1738 AVSubtitle subtitle;
1739 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1740 &subtitle, got_output, pkt);
1741 if (ret < 0 || !*got_output) {
1743 sub2video_flush(ist);
1747 if (ist->fix_sub_duration) {
1748 if (ist->prev_sub.got_output) {
1749 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1750 1000, AV_TIME_BASE);
1751 if (end < ist->prev_sub.subtitle.end_display_time) {
1752 av_log(ist->st->codec, AV_LOG_DEBUG,
1753 "Subtitle duration reduced from %d to %d\n",
1754 ist->prev_sub.subtitle.end_display_time, end);
1755 ist->prev_sub.subtitle.end_display_time = end;
1758 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1759 FFSWAP(int, ret, ist->prev_sub.ret);
1760 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1763 sub2video_update(ist, &subtitle);
1765 if (!*got_output || !subtitle.num_rects)
1768 rate_emu_sleep(ist);
1770 for (i = 0; i < nb_output_streams; i++) {
1771 OutputStream *ost = output_streams[i];
1773 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1776 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1779 avsubtitle_free(&subtitle);
1783 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1784 static int output_packet(InputStream *ist, const AVPacket *pkt)
1790 if (!ist->saw_first_ts) {
1791 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;
1793 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1794 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1795 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1797 ist->saw_first_ts = 1;
1800 if (ist->next_dts == AV_NOPTS_VALUE)
1801 ist->next_dts = ist->dts;
1802 if (ist->next_pts == AV_NOPTS_VALUE)
1803 ist->next_pts = ist->pts;
1807 av_init_packet(&avpkt);
1815 if (pkt->dts != AV_NOPTS_VALUE) {
1816 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1817 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1818 ist->next_pts = ist->pts = ist->dts;
1821 // while we have more to decode or while the decoder did output something on EOF
1822 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1826 ist->pts = ist->next_pts;
1827 ist->dts = ist->next_dts;
1829 if (avpkt.size && avpkt.size != pkt->size) {
1830 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1831 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1832 ist->showed_multi_packet_warning = 1;
1835 switch (ist->st->codec->codec_type) {
1836 case AVMEDIA_TYPE_AUDIO:
1837 ret = decode_audio (ist, &avpkt, &got_output);
1839 case AVMEDIA_TYPE_VIDEO:
1840 ret = decode_video (ist, &avpkt, &got_output);
1841 if (avpkt.duration) {
1842 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1843 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1844 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1845 duration = ((int64_t)AV_TIME_BASE *
1846 ist->st->codec->time_base.num * ticks) /
1847 ist->st->codec->time_base.den;
1851 if(ist->dts != AV_NOPTS_VALUE && duration) {
1852 ist->next_dts += duration;
1854 ist->next_dts = AV_NOPTS_VALUE;
1857 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1859 case AVMEDIA_TYPE_SUBTITLE:
1860 ret = transcode_subtitles(ist, &avpkt, &got_output);
1870 avpkt.pts= AV_NOPTS_VALUE;
1872 // touch data and size only if not EOF
1874 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1884 /* handle stream copy */
1885 if (!ist->decoding_needed) {
1886 rate_emu_sleep(ist);
1887 ist->dts = ist->next_dts;
1888 switch (ist->st->codec->codec_type) {
1889 case AVMEDIA_TYPE_AUDIO:
1890 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1891 ist->st->codec->sample_rate;
1893 case AVMEDIA_TYPE_VIDEO:
1894 if (pkt->duration) {
1895 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1896 } else if(ist->st->codec->time_base.num != 0) {
1897 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1898 ist->next_dts += ((int64_t)AV_TIME_BASE *
1899 ist->st->codec->time_base.num * ticks) /
1900 ist->st->codec->time_base.den;
1904 ist->pts = ist->dts;
1905 ist->next_pts = ist->next_dts;
1907 for (i = 0; pkt && i < nb_output_streams; i++) {
1908 OutputStream *ost = output_streams[i];
1910 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1913 do_streamcopy(ist, ost, pkt);
1919 static void print_sdp(void)
1923 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1927 for (i = 0; i < nb_output_files; i++)
1928 avc[i] = output_files[i]->ctx;
1930 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1931 printf("SDP:\n%s\n", sdp);
1936 static int init_input_stream(int ist_index, char *error, int error_len)
1939 InputStream *ist = input_streams[ist_index];
1941 if (ist->decoding_needed) {
1942 AVCodec *codec = ist->dec;
1944 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1945 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1946 return AVERROR(EINVAL);
1949 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1950 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1951 ist->st->codec->get_buffer = codec_get_buffer;
1952 ist->st->codec->release_buffer = codec_release_buffer;
1953 ist->st->codec->opaque = &ist->buffer_pool;
1956 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1957 av_dict_set(&ist->opts, "threads", "auto", 0);
1958 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1959 if (ret == AVERROR_EXPERIMENTAL)
1960 abort_codec_experimental(codec, 0);
1961 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1962 ist->file_index, ist->st->index);
1965 assert_avoptions(ist->opts);
1968 ist->next_pts = AV_NOPTS_VALUE;
1969 ist->next_dts = AV_NOPTS_VALUE;
1975 static InputStream *get_input_stream(OutputStream *ost)
1977 if (ost->source_index >= 0)
1978 return input_streams[ost->source_index];
1982 static int compare_int64(const void *a, const void *b)
1984 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
1985 return va < vb ? -1 : va > vb ? +1 : 0;
1988 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1989 AVCodecContext *avctx)
1992 int n = 1, i, size, index = 0;
1995 for (p = kf; *p; p++)
1999 pts = av_malloc(sizeof(*pts) * size);
2001 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2006 for (i = 0; i < n; i++) {
2007 char *next = strchr(p, ',');
2012 if (!memcmp(p, "chapters", 8)) {
2014 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2017 if (avf->nb_chapters > INT_MAX - size ||
2018 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2020 av_log(NULL, AV_LOG_FATAL,
2021 "Could not allocate forced key frames array.\n");
2024 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2025 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2027 for (j = 0; j < avf->nb_chapters; j++) {
2028 AVChapter *c = avf->chapters[j];
2029 av_assert1(index < size);
2030 pts[index++] = av_rescale_q(c->start, c->time_base,
2031 avctx->time_base) + t;
2036 t = parse_time_or_die("force_key_frames", p, 1);
2037 av_assert1(index < size);
2038 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2045 av_assert0(index == size);
2046 qsort(pts, size, sizeof(*pts), compare_int64);
2047 ost->forced_kf_count = size;
2048 ost->forced_kf_pts = pts;
2051 static void report_new_stream(int input_index, AVPacket *pkt)
2053 InputFile *file = input_files[input_index];
2054 AVStream *st = file->ctx->streams[pkt->stream_index];
2056 if (pkt->stream_index < file->nb_streams_warn)
2058 av_log(file->ctx, AV_LOG_WARNING,
2059 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2060 av_get_media_type_string(st->codec->codec_type),
2061 input_index, pkt->stream_index,
2062 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2063 file->nb_streams_warn = pkt->stream_index + 1;
2066 static int transcode_init(void)
2068 int ret = 0, i, j, k;
2069 AVFormatContext *oc;
2070 AVCodecContext *codec;
2076 /* init framerate emulation */
2077 for (i = 0; i < nb_input_files; i++) {
2078 InputFile *ifile = input_files[i];
2079 if (ifile->rate_emu)
2080 for (j = 0; j < ifile->nb_streams; j++)
2081 input_streams[j + ifile->ist_index]->start = av_gettime();
2084 /* output stream init */
2085 for (i = 0; i < nb_output_files; i++) {
2086 oc = output_files[i]->ctx;
2087 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2088 av_dump_format(oc, i, oc->filename, 1);
2089 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2090 return AVERROR(EINVAL);
2094 /* init complex filtergraphs */
2095 for (i = 0; i < nb_filtergraphs; i++)
2096 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2099 /* for each output stream, we compute the right encoding parameters */
2100 for (i = 0; i < nb_output_streams; i++) {
2101 AVCodecContext *icodec = NULL;
2102 ost = output_streams[i];
2103 oc = output_files[ost->file_index]->ctx;
2104 ist = get_input_stream(ost);
2106 if (ost->attachment_filename)
2109 codec = ost->st->codec;
2112 icodec = ist->st->codec;
2114 ost->st->disposition = ist->st->disposition;
2115 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2116 codec->chroma_sample_location = icodec->chroma_sample_location;
2119 if (ost->stream_copy) {
2120 uint64_t extra_size;
2122 av_assert0(ist && !ost->filter);
2124 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2126 if (extra_size > INT_MAX) {
2127 return AVERROR(EINVAL);
2130 /* if stream_copy is selected, no need to decode or encode */
2131 codec->codec_id = icodec->codec_id;
2132 codec->codec_type = icodec->codec_type;
2134 if (!codec->codec_tag) {
2135 unsigned int codec_tag;
2136 if (!oc->oformat->codec_tag ||
2137 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2138 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2139 codec->codec_tag = icodec->codec_tag;
2142 codec->bit_rate = icodec->bit_rate;
2143 codec->rc_max_rate = icodec->rc_max_rate;
2144 codec->rc_buffer_size = icodec->rc_buffer_size;
2145 codec->field_order = icodec->field_order;
2146 codec->extradata = av_mallocz(extra_size);
2147 if (!codec->extradata) {
2148 return AVERROR(ENOMEM);
2150 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2151 codec->extradata_size= icodec->extradata_size;
2152 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2154 codec->time_base = ist->st->time_base;
2156 * Avi is a special case here because it supports variable fps but
2157 * having the fps and timebase differe significantly adds quite some
2160 if(!strcmp(oc->oformat->name, "avi")) {
2161 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2162 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2163 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2164 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2166 codec->time_base.num = ist->st->r_frame_rate.den;
2167 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2168 codec->ticks_per_frame = 2;
2169 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2170 && av_q2d(ist->st->time_base) < 1.0/500
2172 codec->time_base = icodec->time_base;
2173 codec->time_base.num *= icodec->ticks_per_frame;
2174 codec->time_base.den *= 2;
2175 codec->ticks_per_frame = 2;
2177 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2178 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2179 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2180 && strcmp(oc->oformat->name, "f4v")
2182 if( copy_tb<0 && icodec->time_base.den
2183 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2184 && av_q2d(ist->st->time_base) < 1.0/500
2186 codec->time_base = icodec->time_base;
2187 codec->time_base.num *= icodec->ticks_per_frame;
2190 if ( codec->codec_tag == AV_RL32("tmcd")
2191 && icodec->time_base.num < icodec->time_base.den
2192 && icodec->time_base.num > 0
2193 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2194 codec->time_base = icodec->time_base;
2197 if(ost->frame_rate.num)
2198 codec->time_base = av_inv_q(ost->frame_rate);
2200 av_reduce(&codec->time_base.num, &codec->time_base.den,
2201 codec->time_base.num, codec->time_base.den, INT_MAX);
2203 switch (codec->codec_type) {
2204 case AVMEDIA_TYPE_AUDIO:
2205 if (audio_volume != 256) {
2206 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2209 codec->channel_layout = icodec->channel_layout;
2210 codec->sample_rate = icodec->sample_rate;
2211 codec->channels = icodec->channels;
2212 codec->frame_size = icodec->frame_size;
2213 codec->audio_service_type = icodec->audio_service_type;
2214 codec->block_align = icodec->block_align;
2215 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2216 codec->block_align= 0;
2217 if(codec->codec_id == AV_CODEC_ID_AC3)
2218 codec->block_align= 0;
2220 case AVMEDIA_TYPE_VIDEO:
2221 codec->pix_fmt = icodec->pix_fmt;
2222 codec->width = icodec->width;
2223 codec->height = icodec->height;
2224 codec->has_b_frames = icodec->has_b_frames;
2225 if (!codec->sample_aspect_ratio.num) {
2226 codec->sample_aspect_ratio =
2227 ost->st->sample_aspect_ratio =
2228 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2229 ist->st->codec->sample_aspect_ratio.num ?
2230 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2232 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2234 case AVMEDIA_TYPE_SUBTITLE:
2235 codec->width = icodec->width;
2236 codec->height = icodec->height;
2238 case AVMEDIA_TYPE_DATA:
2239 case AVMEDIA_TYPE_ATTACHMENT:
2246 ost->enc = avcodec_find_encoder(codec->codec_id);
2248 /* should only happen when a default codec is not present. */
2249 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2250 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2251 ret = AVERROR(EINVAL);
2256 ist->decoding_needed++;
2257 ost->encoding_needed = 1;
2260 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2261 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2263 fg = init_simple_filtergraph(ist, ost);
2264 if (configure_filtergraph(fg)) {
2265 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2270 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2271 if (ost->filter && !ost->frame_rate.num)
2272 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2273 if (ist && !ost->frame_rate.num)
2274 ost->frame_rate = ist->framerate;
2275 if (ist && !ost->frame_rate.num)
2276 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2277 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2278 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2279 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2280 ost->frame_rate = ost->enc->supported_framerates[idx];
2284 switch (codec->codec_type) {
2285 case AVMEDIA_TYPE_AUDIO:
2286 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2287 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2288 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2289 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2290 codec->time_base = (AVRational){ 1, codec->sample_rate };
2292 case AVMEDIA_TYPE_VIDEO:
2293 codec->time_base = av_inv_q(ost->frame_rate);
2294 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2295 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2296 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2297 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2298 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2299 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2301 for (j = 0; j < ost->forced_kf_count; j++)
2302 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2306 codec->width = ost->filter->filter->inputs[0]->w;
2307 codec->height = ost->filter->filter->inputs[0]->h;
2308 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2309 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2310 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2311 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2312 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2315 codec->width != icodec->width ||
2316 codec->height != icodec->height ||
2317 codec->pix_fmt != icodec->pix_fmt) {
2318 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2321 if (ost->forced_keyframes) {
2322 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2323 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2324 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2326 av_log(NULL, AV_LOG_ERROR,
2327 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2330 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2331 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2332 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2333 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2335 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2339 case AVMEDIA_TYPE_SUBTITLE:
2340 codec->time_base = (AVRational){1, 1000};
2341 if (!codec->width) {
2342 codec->width = input_streams[ost->source_index]->st->codec->width;
2343 codec->height = input_streams[ost->source_index]->st->codec->height;
2351 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2352 char logfilename[1024];
2355 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2356 ost->logfile_prefix ? ost->logfile_prefix :
2357 DEFAULT_PASS_LOGFILENAME_PREFIX,
2359 if (!strcmp(ost->enc->name, "libx264")) {
2360 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2362 if (codec->flags & CODEC_FLAG_PASS2) {
2364 size_t logbuffer_size;
2365 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2366 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2370 codec->stats_in = logbuffer;
2372 if (codec->flags & CODEC_FLAG_PASS1) {
2373 f = fopen(logfilename, "wb");
2375 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2376 logfilename, strerror(errno));
2386 /* open each encoder */
2387 for (i = 0; i < nb_output_streams; i++) {
2388 ost = output_streams[i];
2389 if (ost->encoding_needed) {
2390 AVCodec *codec = ost->enc;
2391 AVCodecContext *dec = NULL;
2393 if ((ist = get_input_stream(ost)))
2394 dec = ist->st->codec;
2395 if (dec && dec->subtitle_header) {
2396 /* ASS code assumes this buffer is null terminated so add extra byte. */
2397 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2398 if (!ost->st->codec->subtitle_header) {
2399 ret = AVERROR(ENOMEM);
2402 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2403 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2405 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2406 av_dict_set(&ost->opts, "threads", "auto", 0);
2407 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2408 if (ret == AVERROR_EXPERIMENTAL)
2409 abort_codec_experimental(codec, 1);
2410 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2411 ost->file_index, ost->index);
2414 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2415 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2416 av_buffersink_set_frame_size(ost->filter->filter,
2417 ost->st->codec->frame_size);
2418 assert_avoptions(ost->opts);
2419 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2420 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2421 " It takes bits/s as argument, not kbits/s\n");
2422 extra_size += ost->st->codec->extradata_size;
2424 if (ost->st->codec->me_threshold)
2425 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2429 /* init input streams */
2430 for (i = 0; i < nb_input_streams; i++)
2431 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2434 /* discard unused programs */
2435 for (i = 0; i < nb_input_files; i++) {
2436 InputFile *ifile = input_files[i];
2437 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2438 AVProgram *p = ifile->ctx->programs[j];
2439 int discard = AVDISCARD_ALL;
2441 for (k = 0; k < p->nb_stream_indexes; k++)
2442 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2443 discard = AVDISCARD_DEFAULT;
2446 p->discard = discard;
2450 /* open files and write file headers */
2451 for (i = 0; i < nb_output_files; i++) {
2452 oc = output_files[i]->ctx;
2453 oc->interrupt_callback = int_cb;
2454 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2456 const char *errbuf_ptr = errbuf;
2457 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2458 errbuf_ptr = strerror(AVUNERROR(ret));
2459 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2460 ret = AVERROR(EINVAL);
2463 // assert_avoptions(output_files[i]->opts);
2464 if (strcmp(oc->oformat->name, "rtp")) {
2470 /* dump the file output parameters - cannot be done before in case
2472 for (i = 0; i < nb_output_files; i++) {
2473 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2476 /* dump the stream mapping */
2477 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2478 for (i = 0; i < nb_input_streams; i++) {
2479 ist = input_streams[i];
2481 for (j = 0; j < ist->nb_filters; j++) {
2482 if (ist->filters[j]->graph->graph_desc) {
2483 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2484 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2485 ist->filters[j]->name);
2486 if (nb_filtergraphs > 1)
2487 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2488 av_log(NULL, AV_LOG_INFO, "\n");
2493 for (i = 0; i < nb_output_streams; i++) {
2494 ost = output_streams[i];
2496 if (ost->attachment_filename) {
2497 /* an attached file */
2498 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2499 ost->attachment_filename, ost->file_index, ost->index);
2503 if (ost->filter && ost->filter->graph->graph_desc) {
2504 /* output from a complex graph */
2505 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2506 if (nb_filtergraphs > 1)
2507 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2509 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2510 ost->index, ost->enc ? ost->enc->name : "?");
2514 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2515 input_streams[ost->source_index]->file_index,
2516 input_streams[ost->source_index]->st->index,
2519 if (ost->sync_ist != input_streams[ost->source_index])
2520 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2521 ost->sync_ist->file_index,
2522 ost->sync_ist->st->index);
2523 if (ost->stream_copy)
2524 av_log(NULL, AV_LOG_INFO, " (copy)");
2526 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2527 input_streams[ost->source_index]->dec->name : "?",
2528 ost->enc ? ost->enc->name : "?");
2529 av_log(NULL, AV_LOG_INFO, "\n");
2533 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2544 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2545 static int need_output(void)
2549 for (i = 0; i < nb_output_streams; i++) {
2550 OutputStream *ost = output_streams[i];
2551 OutputFile *of = output_files[ost->file_index];
2552 AVFormatContext *os = output_files[ost->file_index]->ctx;
2554 if (ost->finished ||
2555 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2557 if (ost->frame_number >= ost->max_frames) {
2559 for (j = 0; j < of->ctx->nb_streams; j++)
2560 close_output_stream(output_streams[of->ost_index + j]);
2571 * Select the output stream to process.
2573 * @return selected output stream, or NULL if none available
2575 static OutputStream *choose_output(void)
2578 int64_t opts_min = INT64_MAX;
2579 OutputStream *ost_min = NULL;
2581 for (i = 0; i < nb_output_streams; i++) {
2582 OutputStream *ost = output_streams[i];
2583 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2585 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2593 static int check_keyboard_interaction(int64_t cur_time)
2596 static int64_t last_time;
2597 if (received_nb_signals)
2598 return AVERROR_EXIT;
2599 /* read_key() returns 0 on EOF */
2600 if(cur_time - last_time >= 100000 && !run_as_daemon){
2602 last_time = cur_time;
2606 return AVERROR_EXIT;
2607 if (key == '+') av_log_set_level(av_log_get_level()+10);
2608 if (key == '-') av_log_set_level(av_log_get_level()-10);
2609 if (key == 's') qp_hist ^= 1;
2612 do_hex_dump = do_pkt_dump = 0;
2613 } else if(do_pkt_dump){
2617 av_log_set_level(AV_LOG_DEBUG);
2619 if (key == 'c' || key == 'C'){
2620 char buf[4096], target[64], command[256], arg[256] = {0};
2623 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2625 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2630 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2631 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2632 target, time, command, arg);
2633 for (i = 0; i < nb_filtergraphs; i++) {
2634 FilterGraph *fg = filtergraphs[i];
2637 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2638 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2639 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2641 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2646 av_log(NULL, AV_LOG_ERROR,
2647 "Parse error, at least 3 arguments were expected, "
2648 "only %d given in string '%s'\n", n, buf);
2651 if (key == 'd' || key == 'D'){
2654 debug = input_streams[0]->st->codec->debug<<1;
2655 if(!debug) debug = 1;
2656 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2659 if(scanf("%d", &debug)!=1)
2660 fprintf(stderr,"error parsing debug value\n");
2661 for(i=0;i<nb_input_streams;i++) {
2662 input_streams[i]->st->codec->debug = debug;
2664 for(i=0;i<nb_output_streams;i++) {
2665 OutputStream *ost = output_streams[i];
2666 ost->st->codec->debug = debug;
2668 if(debug) av_log_set_level(AV_LOG_DEBUG);
2669 fprintf(stderr,"debug=%d\n", debug);
2672 fprintf(stderr, "key function\n"
2673 "? show this help\n"
2674 "+ increase verbosity\n"
2675 "- decrease verbosity\n"
2676 "c Send command to filtergraph\n"
2677 "D cycle through available debug modes\n"
2678 "h dump packets/hex press to cycle through the 3 states\n"
2680 "s Show QP histogram\n"
2687 static void *input_thread(void *arg)
2692 while (!transcoding_finished && ret >= 0) {
2694 ret = av_read_frame(f->ctx, &pkt);
2696 if (ret == AVERROR(EAGAIN)) {
2703 pthread_mutex_lock(&f->fifo_lock);
2704 while (!av_fifo_space(f->fifo))
2705 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2707 av_dup_packet(&pkt);
2708 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2710 pthread_mutex_unlock(&f->fifo_lock);
2717 static void free_input_threads(void)
2721 if (nb_input_files == 1)
2724 transcoding_finished = 1;
2726 for (i = 0; i < nb_input_files; i++) {
2727 InputFile *f = input_files[i];
2730 if (!f->fifo || f->joined)
2733 pthread_mutex_lock(&f->fifo_lock);
2734 while (av_fifo_size(f->fifo)) {
2735 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2736 av_free_packet(&pkt);
2738 pthread_cond_signal(&f->fifo_cond);
2739 pthread_mutex_unlock(&f->fifo_lock);
2741 pthread_join(f->thread, NULL);
2744 while (av_fifo_size(f->fifo)) {
2745 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2746 av_free_packet(&pkt);
2748 av_fifo_free(f->fifo);
2752 static int init_input_threads(void)
2756 if (nb_input_files == 1)
2759 for (i = 0; i < nb_input_files; i++) {
2760 InputFile *f = input_files[i];
2762 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2763 return AVERROR(ENOMEM);
2765 pthread_mutex_init(&f->fifo_lock, NULL);
2766 pthread_cond_init (&f->fifo_cond, NULL);
2768 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2769 return AVERROR(ret);
2774 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2778 pthread_mutex_lock(&f->fifo_lock);
2780 if (av_fifo_size(f->fifo)) {
2781 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2782 pthread_cond_signal(&f->fifo_cond);
2787 ret = AVERROR(EAGAIN);
2790 pthread_mutex_unlock(&f->fifo_lock);
2796 static int get_input_packet(InputFile *f, AVPacket *pkt)
2799 if (nb_input_files > 1)
2800 return get_input_packet_mt(f, pkt);
2802 return av_read_frame(f->ctx, pkt);
2805 static int got_eagain(void)
2808 for (i = 0; i < nb_output_streams; i++)
2809 if (output_streams[i]->unavailable)
2814 static void reset_eagain(void)
2817 for (i = 0; i < nb_input_files; i++)
2818 input_files[i]->eagain = 0;
2819 for (i = 0; i < nb_output_streams; i++)
2820 output_streams[i]->unavailable = 0;
2825 * - 0 -- one packet was read and processed
2826 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2827 * this function should be called again
2828 * - AVERROR_EOF -- this function should not be called again
2830 static int process_input(int file_index)
2832 InputFile *ifile = input_files[file_index];
2833 AVFormatContext *is;
2839 ret = get_input_packet(ifile, &pkt);
2841 if (ret == AVERROR(EAGAIN)) {
2846 if (ret != AVERROR_EOF) {
2847 print_error(is->filename, ret);
2851 ifile->eof_reached = 1;
2853 for (i = 0; i < ifile->nb_streams; i++) {
2854 ist = input_streams[ifile->ist_index + i];
2855 if (ist->decoding_needed)
2856 output_packet(ist, NULL);
2858 /* mark all outputs that don't go through lavfi as finished */
2859 for (j = 0; j < nb_output_streams; j++) {
2860 OutputStream *ost = output_streams[j];
2862 if (ost->source_index == ifile->ist_index + i &&
2863 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2864 close_output_stream(ost);
2868 return AVERROR(EAGAIN);
2874 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2875 is->streams[pkt.stream_index]);
2877 /* the following test is needed in case new streams appear
2878 dynamically in stream : we ignore them */
2879 if (pkt.stream_index >= ifile->nb_streams) {
2880 report_new_stream(file_index, &pkt);
2881 goto discard_packet;
2884 ist = input_streams[ifile->ist_index + pkt.stream_index];
2886 goto discard_packet;
2889 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2890 "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",
2891 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2892 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2893 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2894 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2895 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2896 av_ts2str(input_files[ist->file_index]->ts_offset),
2897 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2900 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2901 int64_t stime, stime2;
2902 // Correcting starttime based on the enabled streams
2903 // 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.
2904 // so we instead do it here as part of discontinuity handling
2905 if ( ist->next_dts == AV_NOPTS_VALUE
2906 && ifile->ts_offset == -is->start_time
2907 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2908 int64_t new_start_time = INT64_MAX;
2909 for (i=0; i<is->nb_streams; i++) {
2910 AVStream *st = is->streams[i];
2911 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2913 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2915 if (new_start_time > is->start_time) {
2916 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2917 ifile->ts_offset = -new_start_time;
2921 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2922 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2923 ist->wrap_correction_done = 1;
2925 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2926 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2927 ist->wrap_correction_done = 0;
2929 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2930 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2931 ist->wrap_correction_done = 0;
2935 if (pkt.dts != AV_NOPTS_VALUE)
2936 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2937 if (pkt.pts != AV_NOPTS_VALUE)
2938 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2940 if (pkt.pts != AV_NOPTS_VALUE)
2941 pkt.pts *= ist->ts_scale;
2942 if (pkt.dts != AV_NOPTS_VALUE)
2943 pkt.dts *= ist->ts_scale;
2945 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2947 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2948 int64_t delta = pkt_dts - ist->next_dts;
2949 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2950 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2951 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2952 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2953 pkt_dts+1<ist->pts){
2954 ifile->ts_offset -= delta;
2955 av_log(NULL, AV_LOG_DEBUG,
2956 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2957 delta, ifile->ts_offset);
2958 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2959 if (pkt.pts != AV_NOPTS_VALUE)
2960 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2963 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2964 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2966 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2967 pkt.dts = AV_NOPTS_VALUE;
2969 if (pkt.pts != AV_NOPTS_VALUE){
2970 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2971 delta = pkt_pts - ist->next_dts;
2972 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2973 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2975 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2976 pkt.pts = AV_NOPTS_VALUE;
2983 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",
2984 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2985 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2986 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2987 av_ts2str(input_files[ist->file_index]->ts_offset),
2988 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2991 sub2video_heartbeat(ist, pkt.pts);
2993 ret = output_packet(ist, &pkt);
2996 av_strerror(ret, buf, sizeof(buf));
2997 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2998 ist->file_index, ist->st->index, buf);
3004 av_free_packet(&pkt);
3010 * Perform a step of transcoding for the specified filter graph.
3012 * @param[in] graph filter graph to consider
3013 * @param[out] best_ist input stream where a frame would allow to continue
3014 * @return 0 for success, <0 for error
3016 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3019 int nb_requests, nb_requests_max = 0;
3020 InputFilter *ifilter;
3024 ret = avfilter_graph_request_oldest(graph->graph);
3026 return reap_filters();
3028 if (ret == AVERROR_EOF) {
3029 ret = reap_filters();
3030 for (i = 0; i < graph->nb_outputs; i++)
3031 close_output_stream(graph->outputs[i]->ost);
3034 if (ret != AVERROR(EAGAIN))
3037 for (i = 0; i < graph->nb_inputs; i++) {
3038 ifilter = graph->inputs[i];
3040 if (input_files[ist->file_index]->eagain ||
3041 input_files[ist->file_index]->eof_reached)
3043 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3044 if (nb_requests > nb_requests_max) {
3045 nb_requests_max = nb_requests;
3051 for (i = 0; i < graph->nb_outputs; i++)
3052 graph->outputs[i]->ost->unavailable = 1;
3058 * Run a single step of transcoding.
3060 * @return 0 for success, <0 for error
3062 static int transcode_step(void)
3068 ost = choose_output();
3075 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3080 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3085 av_assert0(ost->source_index >= 0);
3086 ist = input_streams[ost->source_index];
3089 ret = process_input(ist->file_index);
3090 if (ret == AVERROR(EAGAIN)) {
3091 if (input_files[ist->file_index]->eagain)
3092 ost->unavailable = 1;
3096 return ret == AVERROR_EOF ? 0 : ret;
3098 return reap_filters();
3102 * The following code is the main loop of the file converter
3104 static int transcode(void)
3107 AVFormatContext *os;
3110 int64_t timer_start;
3112 ret = transcode_init();
3116 if (stdin_interaction) {
3117 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3120 timer_start = av_gettime();
3123 if ((ret = init_input_threads()) < 0)
3127 while (!received_sigterm) {
3128 int64_t cur_time= av_gettime();
3130 /* if 'q' pressed, exits */
3131 if (stdin_interaction)
3132 if (check_keyboard_interaction(cur_time) < 0)
3135 /* check if there's any stream where output is still needed */
3136 if (!need_output()) {
3137 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3141 ret = transcode_step();
3143 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3146 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3150 /* dump report by using the output first video and audio streams */
3151 print_report(0, timer_start, cur_time);
3154 free_input_threads();
3157 /* at the end of stream, we must flush the decoder buffers */
3158 for (i = 0; i < nb_input_streams; i++) {
3159 ist = input_streams[i];
3160 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3161 output_packet(ist, NULL);
3168 /* write the trailer if needed and close file */
3169 for (i = 0; i < nb_output_files; i++) {
3170 os = output_files[i]->ctx;
3171 av_write_trailer(os);
3174 /* dump report by using the first video and audio streams */
3175 print_report(1, timer_start, av_gettime());
3177 /* close each encoder */
3178 for (i = 0; i < nb_output_streams; i++) {
3179 ost = output_streams[i];
3180 if (ost->encoding_needed) {
3181 av_freep(&ost->st->codec->stats_in);
3182 avcodec_close(ost->st->codec);
3186 /* close each decoder */
3187 for (i = 0; i < nb_input_streams; i++) {
3188 ist = input_streams[i];
3189 if (ist->decoding_needed) {
3190 avcodec_close(ist->st->codec);
3199 free_input_threads();
3202 if (output_streams) {
3203 for (i = 0; i < nb_output_streams; i++) {
3204 ost = output_streams[i];
3206 if (ost->stream_copy)
3207 av_freep(&ost->st->codec->extradata);
3209 fclose(ost->logfile);
3210 ost->logfile = NULL;
3212 av_freep(&ost->st->codec->subtitle_header);
3213 av_free(ost->forced_kf_pts);
3214 av_dict_free(&ost->opts);
3222 static int64_t getutime(void)
3225 struct rusage rusage;
3227 getrusage(RUSAGE_SELF, &rusage);
3228 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3229 #elif HAVE_GETPROCESSTIMES
3231 FILETIME c, e, k, u;
3232 proc = GetCurrentProcess();
3233 GetProcessTimes(proc, &c, &e, &k, &u);
3234 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3236 return av_gettime();
3240 static int64_t getmaxrss(void)
3242 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3243 struct rusage rusage;
3244 getrusage(RUSAGE_SELF, &rusage);
3245 return (int64_t)rusage.ru_maxrss * 1024;
3246 #elif HAVE_GETPROCESSMEMORYINFO
3248 PROCESS_MEMORY_COUNTERS memcounters;
3249 proc = GetCurrentProcess();
3250 memcounters.cb = sizeof(memcounters);
3251 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3252 return memcounters.PeakPagefileUsage;
3258 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3262 int main(int argc, char **argv)
3267 atexit(exit_program);
3269 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3271 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3272 parse_loglevel(argc, argv, options);
3274 if(argc>1 && !strcmp(argv[1], "-d")){
3276 av_log_set_callback(log_callback_null);
3281 avcodec_register_all();
3283 avdevice_register_all();
3285 avfilter_register_all();
3287 avformat_network_init();
3289 show_banner(argc, argv, options);
3293 /* parse options and open all input/output files */
3294 ret = ffmpeg_parse_options(argc, argv);
3298 if (nb_output_files <= 0 && nb_input_files == 0) {
3300 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3304 /* file converter / grab */
3305 if (nb_output_files <= 0) {
3306 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3310 // if (nb_input_files == 0) {
3311 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3315 current_time = ti = getutime();
3316 if (transcode() < 0)
3318 ti = getutime() - ti;
3320 int maxrss = getmaxrss() / 1024;
3321 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
3324 exit(received_nb_signals ? 255 : 0);