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 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
463 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
464 av_freep(&input_streams[i]->filters);
465 av_freep(&input_streams[i]);
470 av_free(vstats_filename);
472 av_freep(&input_streams);
473 av_freep(&input_files);
474 av_freep(&output_streams);
475 av_freep(&output_files);
480 avformat_network_deinit();
482 if (received_sigterm) {
483 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
484 (int) received_sigterm);
488 void assert_avoptions(AVDictionary *m)
490 AVDictionaryEntry *t;
491 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
497 static void abort_codec_experimental(AVCodec *c, int encoder)
502 static void update_benchmark(const char *fmt, ...)
504 if (do_benchmark_all) {
505 int64_t t = getutime();
511 vsnprintf(buf, sizeof(buf), fmt, va);
513 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
519 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
521 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
522 AVCodecContext *avctx = ost->st->codec;
525 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
526 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
527 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
529 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
530 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
531 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
532 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
533 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
534 if(pkt->pts >= pkt->dts)
535 pkt->pts = FFMAX(pkt->pts, max);
541 * Audio encoders may split the packets -- #frames in != #packets out.
542 * But there is no reordering, so we can limit the number of output packets
543 * by simply dropping them here.
544 * Counting encoded video frames needs to be done separately because of
545 * reordering, see do_video_out()
547 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
548 if (ost->frame_number >= ost->max_frames) {
556 AVPacket new_pkt = *pkt;
557 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
558 &new_pkt.data, &new_pkt.size,
559 pkt->data, pkt->size,
560 pkt->flags & AV_PKT_FLAG_KEY);
561 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
562 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
564 memcpy(t, new_pkt.data, new_pkt.size);
565 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
573 new_pkt.destruct = av_destruct_packet;
575 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
576 bsfc->filter->name, pkt->stream_index,
577 avctx->codec ? avctx->codec->name : "copy");
587 pkt->stream_index = ost->index;
590 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
591 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
592 av_get_media_type_string(ost->st->codec->codec_type),
593 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
594 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
599 ret = av_interleaved_write_frame(s, pkt);
601 print_error("av_interleaved_write_frame()", ret);
606 static void close_output_stream(OutputStream *ost)
608 OutputFile *of = output_files[ost->file_index];
612 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
613 of->recording_time = FFMIN(of->recording_time, end);
617 static int check_recording_time(OutputStream *ost)
619 OutputFile *of = output_files[ost->file_index];
621 if (of->recording_time != INT64_MAX &&
622 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
623 AV_TIME_BASE_Q) >= 0) {
624 close_output_stream(ost);
630 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
633 AVCodecContext *enc = ost->st->codec;
637 av_init_packet(&pkt);
641 if (!check_recording_time(ost))
644 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
645 frame->pts = ost->sync_opts;
646 ost->sync_opts = frame->pts + frame->nb_samples;
648 av_assert0(pkt.size || !pkt.data);
649 update_benchmark(NULL);
650 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
651 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
654 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
657 if (pkt.pts != AV_NOPTS_VALUE)
658 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
659 if (pkt.dts != AV_NOPTS_VALUE)
660 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
661 if (pkt.duration > 0)
662 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
665 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
666 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
667 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
668 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
671 audio_size += pkt.size;
672 write_frame(s, &pkt, ost);
674 av_free_packet(&pkt);
678 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
682 AVPicture picture_tmp;
685 dec = ist->st->codec;
687 /* deinterlace : must be done before any resize */
688 if (do_deinterlace) {
691 /* create temporary picture */
692 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
695 buf = av_malloc(size);
699 picture2 = &picture_tmp;
700 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
702 if (avpicture_deinterlace(picture2, picture,
703 dec->pix_fmt, dec->width, dec->height) < 0) {
704 /* if error, do not deinterlace */
705 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
714 if (picture != picture2)
715 *picture = *picture2;
719 static void do_subtitle_out(AVFormatContext *s,
724 int subtitle_out_max_size = 1024 * 1024;
725 int subtitle_out_size, nb, i;
730 if (sub->pts == AV_NOPTS_VALUE) {
731 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
737 enc = ost->st->codec;
740 subtitle_out = av_malloc(subtitle_out_max_size);
743 /* Note: DVB subtitle need one packet to draw them and one other
744 packet to clear them */
745 /* XXX: signal it in the codec context ? */
746 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
751 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
752 pts = sub->pts - output_files[ost->file_index]->start_time;
753 for (i = 0; i < nb; i++) {
754 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
755 if (!check_recording_time(ost))
759 // start_display_time is required to be 0
760 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
761 sub->end_display_time -= sub->start_display_time;
762 sub->start_display_time = 0;
765 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
766 subtitle_out_max_size, sub);
767 if (subtitle_out_size < 0) {
768 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
772 av_init_packet(&pkt);
773 pkt.data = subtitle_out;
774 pkt.size = subtitle_out_size;
775 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
776 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
777 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
778 /* XXX: the pts correction is handled here. Maybe handling
779 it in the codec would be better */
781 pkt.pts += 90 * sub->start_display_time;
783 pkt.pts += 90 * sub->end_display_time;
785 subtitle_size += pkt.size;
786 write_frame(s, &pkt, ost);
790 static void do_video_out(AVFormatContext *s,
794 int ret, format_video_sync;
796 AVCodecContext *enc = ost->st->codec;
798 double sync_ipts, delta;
801 InputStream *ist = NULL;
803 if (ost->source_index >= 0)
804 ist = input_streams[ost->source_index];
806 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
807 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
809 sync_ipts = in_picture->pts;
810 delta = sync_ipts - ost->sync_opts + duration;
812 /* by default, we output a single frame */
815 format_video_sync = video_sync_method;
816 if (format_video_sync == VSYNC_AUTO)
817 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
819 switch (format_video_sync) {
821 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
824 else if (delta > 1.1)
825 nb_frames = lrintf(delta);
830 else if (delta > 0.6)
831 ost->sync_opts = lrint(sync_ipts);
834 case VSYNC_PASSTHROUGH:
835 ost->sync_opts = lrint(sync_ipts);
841 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
842 if (nb_frames == 0) {
844 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
846 } else if (nb_frames > 1) {
847 if (nb_frames > dts_error_threshold * 30) {
848 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
852 nb_frames_dup += nb_frames - 1;
853 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
856 /* duplicates frame if needed */
857 for (i = 0; i < nb_frames; i++) {
858 av_init_packet(&pkt);
862 in_picture->pts = ost->sync_opts;
864 if (!check_recording_time(ost))
867 if (s->oformat->flags & AVFMT_RAWPICTURE &&
868 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
869 /* raw pictures are written as AVPicture structure to
870 avoid any copies. We support temporarily the older
872 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
873 enc->coded_frame->top_field_first = in_picture->top_field_first;
874 if (enc->coded_frame->interlaced_frame)
875 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
877 enc->field_order = AV_FIELD_PROGRESSIVE;
878 pkt.data = (uint8_t *)in_picture;
879 pkt.size = sizeof(AVPicture);
880 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
881 pkt.flags |= AV_PKT_FLAG_KEY;
883 video_size += pkt.size;
884 write_frame(s, &pkt, ost);
886 int got_packet, forced_keyframe = 0;
890 big_picture = *in_picture;
891 /* better than nothing: use input picture interlaced
893 big_picture.interlaced_frame = in_picture->interlaced_frame;
894 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
895 if (ost->top_field_first == -1)
896 big_picture.top_field_first = in_picture->top_field_first;
898 big_picture.top_field_first = !!ost->top_field_first;
901 if (big_picture.interlaced_frame) {
902 if (enc->codec->id == AV_CODEC_ID_MJPEG)
903 enc->field_order = big_picture.top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
905 enc->field_order = big_picture.top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
907 enc->field_order = AV_FIELD_PROGRESSIVE;
909 big_picture.quality = ost->st->codec->global_quality;
910 if (!enc->me_threshold)
911 big_picture.pict_type = 0;
913 pts_time = big_picture.pts != AV_NOPTS_VALUE ?
914 big_picture.pts * av_q2d(enc->time_base) : NAN;
915 if (ost->forced_kf_index < ost->forced_kf_count &&
916 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
917 ost->forced_kf_index++;
919 } else if (ost->forced_keyframes_pexpr) {
921 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
922 res = av_expr_eval(ost->forced_keyframes_pexpr,
923 ost->forced_keyframes_expr_const_values, NULL);
924 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
925 ost->forced_keyframes_expr_const_values[FKF_N],
926 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
927 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
928 ost->forced_keyframes_expr_const_values[FKF_T],
929 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
933 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
934 ost->forced_keyframes_expr_const_values[FKF_N];
935 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
936 ost->forced_keyframes_expr_const_values[FKF_T];
937 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
940 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
942 if (forced_keyframe) {
943 big_picture.pict_type = AV_PICTURE_TYPE_I;
944 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
947 update_benchmark(NULL);
948 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
949 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
951 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
956 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
957 pkt.pts = ost->sync_opts;
959 if (pkt.pts != AV_NOPTS_VALUE)
960 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
961 if (pkt.dts != AV_NOPTS_VALUE)
962 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
965 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
966 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
967 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
968 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
971 frame_size = pkt.size;
972 video_size += pkt.size;
973 write_frame(s, &pkt, ost);
974 av_free_packet(&pkt);
976 /* if two pass, output log */
977 if (ost->logfile && enc->stats_out) {
978 fprintf(ost->logfile, "%s", enc->stats_out);
984 * For video, number of frames in == number of packets out.
985 * But there may be reordering, so we can't throw away frames on encoder
986 * flush, we need to limit them here, before they go into encoder.
991 if (vstats_filename && frame_size)
992 do_video_stats(ost, frame_size);
995 static double psnr(double d)
997 return -10.0 * log(d) / log(10.0);
1000 static void do_video_stats(OutputStream *ost, int frame_size)
1002 AVCodecContext *enc;
1004 double ti1, bitrate, avg_bitrate;
1006 /* this is executed just the first time do_video_stats is called */
1008 vstats_file = fopen(vstats_filename, "w");
1015 enc = ost->st->codec;
1016 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1017 frame_number = ost->st->nb_frames;
1018 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1019 if (enc->flags&CODEC_FLAG_PSNR)
1020 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1022 fprintf(vstats_file,"f_size= %6d ", frame_size);
1023 /* compute pts value */
1024 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1028 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1029 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1030 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1031 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1032 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1037 * Get and encode new output from any of the filtergraphs, without causing
1040 * @return 0 for success, <0 for severe errors
1042 static int reap_filters(void)
1044 AVFilterBufferRef *picref;
1045 AVFrame *filtered_frame = NULL;
1049 /* Reap all buffers present in the buffer sinks */
1050 for (i = 0; i < nb_output_streams; i++) {
1051 OutputStream *ost = output_streams[i];
1052 OutputFile *of = output_files[ost->file_index];
1058 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1059 return AVERROR(ENOMEM);
1061 avcodec_get_frame_defaults(ost->filtered_frame);
1062 filtered_frame = ost->filtered_frame;
1065 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1066 AV_BUFFERSINK_FLAG_NO_REQUEST);
1068 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1070 av_strerror(ret, buf, sizeof(buf));
1071 av_log(NULL, AV_LOG_WARNING,
1072 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1076 frame_pts = AV_NOPTS_VALUE;
1077 if (picref->pts != AV_NOPTS_VALUE) {
1078 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1079 ost->filter->filter->inputs[0]->time_base,
1080 ost->st->codec->time_base) -
1081 av_rescale_q(of->start_time,
1083 ost->st->codec->time_base);
1085 if (of->start_time && filtered_frame->pts < 0) {
1086 avfilter_unref_buffer(picref);
1090 //if (ost->source_index >= 0)
1091 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1094 switch (ost->filter->filter->inputs[0]->type) {
1095 case AVMEDIA_TYPE_VIDEO:
1096 avfilter_copy_buf_props(filtered_frame, picref);
1097 filtered_frame->pts = frame_pts;
1098 if (!ost->frame_aspect_ratio)
1099 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1101 do_video_out(of->ctx, ost, filtered_frame);
1103 case AVMEDIA_TYPE_AUDIO:
1104 avfilter_copy_buf_props(filtered_frame, picref);
1105 filtered_frame->pts = frame_pts;
1106 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1107 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1108 av_log(NULL, AV_LOG_ERROR,
1109 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1112 do_audio_out(of->ctx, ost, filtered_frame);
1115 // TODO support subtitle filters
1119 avfilter_unref_buffer(picref);
1126 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1129 AVBPrint buf_script;
1131 AVFormatContext *oc;
1133 AVCodecContext *enc;
1134 int frame_number, vid, i;
1136 int64_t pts = INT64_MIN;
1137 static int64_t last_time = -1;
1138 static int qp_histogram[52];
1139 int hours, mins, secs, us;
1141 if (!print_stats && !is_last_report && !progress_avio)
1144 if (!is_last_report) {
1145 if (last_time == -1) {
1146 last_time = cur_time;
1149 if ((cur_time - last_time) < 500000)
1151 last_time = cur_time;
1155 oc = output_files[0]->ctx;
1157 total_size = avio_size(oc->pb);
1158 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1159 total_size = avio_tell(oc->pb);
1163 av_bprint_init(&buf_script, 0, 1);
1164 for (i = 0; i < nb_output_streams; i++) {
1166 ost = output_streams[i];
1167 enc = ost->st->codec;
1168 if (!ost->stream_copy && enc->coded_frame)
1169 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1170 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1171 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1172 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1173 ost->file_index, ost->index, q);
1175 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1176 float fps, t = (cur_time-timer_start) / 1000000.0;
1178 frame_number = ost->frame_number;
1179 fps = t > 1 ? frame_number / t : 0;
1180 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1181 frame_number, fps < 9.95, fps, q);
1182 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1183 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1184 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1185 ost->file_index, ost->index, q);
1187 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1191 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1193 for (j = 0; j < 32; j++)
1194 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1196 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1198 double error, error_sum = 0;
1199 double scale, scale_sum = 0;
1201 char type[3] = { 'Y','U','V' };
1202 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1203 for (j = 0; j < 3; j++) {
1204 if (is_last_report) {
1205 error = enc->error[j];
1206 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1208 error = enc->coded_frame->error[j];
1209 scale = enc->width * enc->height * 255.0 * 255.0;
1215 p = psnr(error / scale);
1216 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1217 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1218 ost->file_index, ost->index, type[j] | 32, p);
1220 p = psnr(error_sum / scale_sum);
1221 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1222 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1223 ost->file_index, ost->index, p);
1227 /* compute min output value */
1228 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1229 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1230 ost->st->time_base, AV_TIME_BASE_Q));
1233 secs = pts / AV_TIME_BASE;
1234 us = pts % AV_TIME_BASE;
1240 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1242 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1244 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1245 "size=%8.0fkB time=", total_size / 1024.0);
1246 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1247 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1248 (100 * us) / AV_TIME_BASE);
1249 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1251 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1252 "bitrate=%6.1fkbits/s", bitrate);
1253 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1254 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1255 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1256 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1257 hours, mins, secs, us);
1259 if (nb_frames_dup || nb_frames_drop)
1260 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1261 nb_frames_dup, nb_frames_drop);
1262 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1263 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1265 if (print_stats || is_last_report) {
1266 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1271 if (progress_avio) {
1272 av_bprintf(&buf_script, "progress=%s\n",
1273 is_last_report ? "end" : "continue");
1274 avio_write(progress_avio, buf_script.str,
1275 FFMIN(buf_script.len, buf_script.size - 1));
1276 avio_flush(progress_avio);
1277 av_bprint_finalize(&buf_script, NULL);
1278 if (is_last_report) {
1279 avio_close(progress_avio);
1280 progress_avio = NULL;
1284 if (is_last_report) {
1285 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1286 av_log(NULL, AV_LOG_INFO, "\n");
1287 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1288 video_size / 1024.0,
1289 audio_size / 1024.0,
1290 subtitle_size / 1024.0,
1291 extra_size / 1024.0,
1292 100.0 * (total_size - raw) / raw
1294 if(video_size + audio_size + subtitle_size + extra_size == 0){
1295 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1300 static void flush_encoders(void)
1304 for (i = 0; i < nb_output_streams; i++) {
1305 OutputStream *ost = output_streams[i];
1306 AVCodecContext *enc = ost->st->codec;
1307 AVFormatContext *os = output_files[ost->file_index]->ctx;
1308 int stop_encoding = 0;
1310 if (!ost->encoding_needed)
1313 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1315 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1319 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1323 switch (ost->st->codec->codec_type) {
1324 case AVMEDIA_TYPE_AUDIO:
1325 encode = avcodec_encode_audio2;
1329 case AVMEDIA_TYPE_VIDEO:
1330 encode = avcodec_encode_video2;
1341 av_init_packet(&pkt);
1345 update_benchmark(NULL);
1346 ret = encode(enc, &pkt, NULL, &got_packet);
1347 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1349 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1353 if (ost->logfile && enc->stats_out) {
1354 fprintf(ost->logfile, "%s", enc->stats_out);
1360 if (pkt.pts != AV_NOPTS_VALUE)
1361 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1362 if (pkt.dts != AV_NOPTS_VALUE)
1363 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1364 if (pkt.duration > 0)
1365 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1366 write_frame(os, &pkt, ost);
1367 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1368 do_video_stats(ost, pkt.size);
1379 * Check whether a packet from ist should be written into ost at this time
1381 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1383 OutputFile *of = output_files[ost->file_index];
1384 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1386 if (ost->source_index != ist_index)
1389 if (of->start_time && ist->pts < of->start_time)
1395 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1397 OutputFile *of = output_files[ost->file_index];
1398 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1402 av_init_packet(&opkt);
1404 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1405 !ost->copy_initial_nonkeyframes)
1408 if (!ost->frame_number && ist->pts < of->start_time &&
1409 !ost->copy_prior_start)
1412 if (of->recording_time != INT64_MAX &&
1413 ist->pts >= of->recording_time + of->start_time) {
1414 close_output_stream(ost);
1418 /* force the input stream PTS */
1419 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1420 audio_size += pkt->size;
1421 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1422 video_size += pkt->size;
1424 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1425 subtitle_size += pkt->size;
1428 if (pkt->pts != AV_NOPTS_VALUE)
1429 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1431 opkt.pts = AV_NOPTS_VALUE;
1433 if (pkt->dts == AV_NOPTS_VALUE)
1434 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1436 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1437 opkt.dts -= ost_tb_start_time;
1439 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1440 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1442 duration = ist->st->codec->frame_size;
1443 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1444 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1445 ost->st->time_base) - ost_tb_start_time;
1448 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1449 opkt.flags = pkt->flags;
1451 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1452 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1453 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1454 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1455 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1457 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1458 opkt.destruct = av_destruct_packet;
1460 opkt.data = pkt->data;
1461 opkt.size = pkt->size;
1464 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1465 /* store AVPicture in AVPacket, as expected by the output format */
1466 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1467 opkt.data = (uint8_t *)&pict;
1468 opkt.size = sizeof(AVPicture);
1469 opkt.flags |= AV_PKT_FLAG_KEY;
1472 write_frame(of->ctx, &opkt, ost);
1473 ost->st->codec->frame_number++;
1476 static void rate_emu_sleep(InputStream *ist)
1478 if (input_files[ist->file_index]->rate_emu) {
1479 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1480 int64_t now = av_gettime() - ist->start;
1482 av_usleep(pts - now);
1486 int guess_input_channel_layout(InputStream *ist)
1488 AVCodecContext *dec = ist->st->codec;
1490 if (!dec->channel_layout) {
1491 char layout_name[256];
1493 if (dec->channels > ist->guess_layout_max)
1495 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1496 if (!dec->channel_layout)
1498 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1499 dec->channels, dec->channel_layout);
1500 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1501 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1506 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1508 AVFrame *decoded_frame;
1509 AVCodecContext *avctx = ist->st->codec;
1510 int i, ret, resample_changed;
1511 AVRational decoded_frame_tb;
1513 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1514 return AVERROR(ENOMEM);
1515 decoded_frame = ist->decoded_frame;
1517 update_benchmark(NULL);
1518 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1519 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1521 if (ret >= 0 && avctx->sample_rate <= 0) {
1522 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1523 ret = AVERROR_INVALIDDATA;
1526 if (!*got_output || ret < 0) {
1528 for (i = 0; i < ist->nb_filters; i++)
1529 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1535 /* increment next_dts to use for the case where the input stream does not
1536 have timestamps or there are multiple frames in the packet */
1537 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1539 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1543 rate_emu_sleep(ist);
1545 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1546 ist->resample_channels != avctx->channels ||
1547 ist->resample_channel_layout != decoded_frame->channel_layout ||
1548 ist->resample_sample_rate != decoded_frame->sample_rate;
1549 if (resample_changed) {
1550 char layout1[64], layout2[64];
1552 if (!guess_input_channel_layout(ist)) {
1553 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1554 "layout for Input Stream #%d.%d\n", ist->file_index,
1558 decoded_frame->channel_layout = avctx->channel_layout;
1560 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1561 ist->resample_channel_layout);
1562 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1563 decoded_frame->channel_layout);
1565 av_log(NULL, AV_LOG_INFO,
1566 "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",
1567 ist->file_index, ist->st->index,
1568 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1569 ist->resample_channels, layout1,
1570 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1571 avctx->channels, layout2);
1573 ist->resample_sample_fmt = decoded_frame->format;
1574 ist->resample_sample_rate = decoded_frame->sample_rate;
1575 ist->resample_channel_layout = decoded_frame->channel_layout;
1576 ist->resample_channels = avctx->channels;
1578 for (i = 0; i < nb_filtergraphs; i++)
1579 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1580 FilterGraph *fg = filtergraphs[i];
1582 if (configure_filtergraph(fg) < 0) {
1583 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1586 for (j = 0; j < fg->nb_outputs; j++) {
1587 OutputStream *ost = fg->outputs[j]->ost;
1588 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1589 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1590 av_buffersink_set_frame_size(ost->filter->filter,
1591 ost->st->codec->frame_size);
1596 /* if the decoder provides a pts, use it instead of the last packet pts.
1597 the decoder could be delaying output by a packet or more. */
1598 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1599 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1600 decoded_frame_tb = avctx->time_base;
1601 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1602 decoded_frame->pts = decoded_frame->pkt_pts;
1603 pkt->pts = AV_NOPTS_VALUE;
1604 decoded_frame_tb = ist->st->time_base;
1605 } else if (pkt->pts != AV_NOPTS_VALUE) {
1606 decoded_frame->pts = pkt->pts;
1607 pkt->pts = AV_NOPTS_VALUE;
1608 decoded_frame_tb = ist->st->time_base;
1610 decoded_frame->pts = ist->dts;
1611 decoded_frame_tb = AV_TIME_BASE_Q;
1613 if (decoded_frame->pts != AV_NOPTS_VALUE)
1614 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1615 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1616 (AVRational){1, ist->st->codec->sample_rate});
1617 for (i = 0; i < ist->nb_filters; i++)
1618 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1619 AV_BUFFERSRC_FLAG_PUSH);
1621 decoded_frame->pts = AV_NOPTS_VALUE;
1626 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1628 AVFrame *decoded_frame;
1629 void *buffer_to_free = NULL;
1630 int i, ret = 0, resample_changed;
1631 int64_t best_effort_timestamp;
1632 AVRational *frame_sample_aspect;
1634 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1635 return AVERROR(ENOMEM);
1636 decoded_frame = ist->decoded_frame;
1637 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1639 update_benchmark(NULL);
1640 ret = avcodec_decode_video2(ist->st->codec,
1641 decoded_frame, got_output, pkt);
1642 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1643 if (!*got_output || ret < 0) {
1645 for (i = 0; i < ist->nb_filters; i++)
1646 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1651 if(ist->top_field_first>=0)
1652 decoded_frame->top_field_first = ist->top_field_first;
1654 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1655 if(best_effort_timestamp != AV_NOPTS_VALUE)
1656 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1659 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1660 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1661 ist->st->index, av_ts2str(decoded_frame->pts),
1662 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1663 best_effort_timestamp,
1664 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1665 decoded_frame->key_frame, decoded_frame->pict_type);
1669 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1671 rate_emu_sleep(ist);
1673 if (ist->st->sample_aspect_ratio.num)
1674 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1676 resample_changed = ist->resample_width != decoded_frame->width ||
1677 ist->resample_height != decoded_frame->height ||
1678 ist->resample_pix_fmt != decoded_frame->format;
1679 if (resample_changed) {
1680 av_log(NULL, AV_LOG_INFO,
1681 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1682 ist->file_index, ist->st->index,
1683 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1684 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1686 ist->resample_width = decoded_frame->width;
1687 ist->resample_height = decoded_frame->height;
1688 ist->resample_pix_fmt = decoded_frame->format;
1690 for (i = 0; i < nb_filtergraphs; i++) {
1691 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1692 configure_filtergraph(filtergraphs[i]) < 0) {
1693 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1699 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1700 for (i = 0; i < ist->nb_filters; i++) {
1701 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1702 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1703 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1705 if (!frame_sample_aspect->num)
1706 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1707 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1708 FrameBuffer *buf = decoded_frame->opaque;
1709 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1710 decoded_frame->data, decoded_frame->linesize,
1711 AV_PERM_READ | AV_PERM_PRESERVE,
1712 ist->st->codec->width, ist->st->codec->height,
1713 ist->st->codec->pix_fmt);
1715 avfilter_copy_frame_props(fb, decoded_frame);
1716 fb->buf->priv = buf;
1717 fb->buf->free = filter_release_buffer;
1719 av_assert0(buf->refcount>0);
1721 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1722 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1723 AV_BUFFERSRC_FLAG_NO_COPY |
1724 AV_BUFFERSRC_FLAG_PUSH);
1726 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1727 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1733 av_free(buffer_to_free);
1737 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1739 AVSubtitle subtitle;
1740 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1741 &subtitle, got_output, pkt);
1742 if (ret < 0 || !*got_output) {
1744 sub2video_flush(ist);
1748 if (ist->fix_sub_duration) {
1749 if (ist->prev_sub.got_output) {
1750 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1751 1000, AV_TIME_BASE);
1752 if (end < ist->prev_sub.subtitle.end_display_time) {
1753 av_log(ist->st->codec, AV_LOG_DEBUG,
1754 "Subtitle duration reduced from %d to %d\n",
1755 ist->prev_sub.subtitle.end_display_time, end);
1756 ist->prev_sub.subtitle.end_display_time = end;
1759 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1760 FFSWAP(int, ret, ist->prev_sub.ret);
1761 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1764 sub2video_update(ist, &subtitle);
1766 if (!*got_output || !subtitle.num_rects)
1769 rate_emu_sleep(ist);
1771 for (i = 0; i < nb_output_streams; i++) {
1772 OutputStream *ost = output_streams[i];
1774 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1777 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1780 avsubtitle_free(&subtitle);
1784 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1785 static int output_packet(InputStream *ist, const AVPacket *pkt)
1791 if (!ist->saw_first_ts) {
1792 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;
1794 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1795 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1796 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1798 ist->saw_first_ts = 1;
1801 if (ist->next_dts == AV_NOPTS_VALUE)
1802 ist->next_dts = ist->dts;
1803 if (ist->next_pts == AV_NOPTS_VALUE)
1804 ist->next_pts = ist->pts;
1808 av_init_packet(&avpkt);
1816 if (pkt->dts != AV_NOPTS_VALUE) {
1817 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1818 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1819 ist->next_pts = ist->pts = ist->dts;
1822 // while we have more to decode or while the decoder did output something on EOF
1823 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1827 ist->pts = ist->next_pts;
1828 ist->dts = ist->next_dts;
1830 if (avpkt.size && avpkt.size != pkt->size) {
1831 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1832 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1833 ist->showed_multi_packet_warning = 1;
1836 switch (ist->st->codec->codec_type) {
1837 case AVMEDIA_TYPE_AUDIO:
1838 ret = decode_audio (ist, &avpkt, &got_output);
1840 case AVMEDIA_TYPE_VIDEO:
1841 ret = decode_video (ist, &avpkt, &got_output);
1842 if (avpkt.duration) {
1843 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1844 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1845 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1846 duration = ((int64_t)AV_TIME_BASE *
1847 ist->st->codec->time_base.num * ticks) /
1848 ist->st->codec->time_base.den;
1852 if(ist->dts != AV_NOPTS_VALUE && duration) {
1853 ist->next_dts += duration;
1855 ist->next_dts = AV_NOPTS_VALUE;
1858 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1860 case AVMEDIA_TYPE_SUBTITLE:
1861 ret = transcode_subtitles(ist, &avpkt, &got_output);
1871 avpkt.pts= AV_NOPTS_VALUE;
1873 // touch data and size only if not EOF
1875 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1885 /* handle stream copy */
1886 if (!ist->decoding_needed) {
1887 rate_emu_sleep(ist);
1888 ist->dts = ist->next_dts;
1889 switch (ist->st->codec->codec_type) {
1890 case AVMEDIA_TYPE_AUDIO:
1891 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1892 ist->st->codec->sample_rate;
1894 case AVMEDIA_TYPE_VIDEO:
1895 if (pkt->duration) {
1896 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1897 } else if(ist->st->codec->time_base.num != 0) {
1898 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1899 ist->next_dts += ((int64_t)AV_TIME_BASE *
1900 ist->st->codec->time_base.num * ticks) /
1901 ist->st->codec->time_base.den;
1905 ist->pts = ist->dts;
1906 ist->next_pts = ist->next_dts;
1908 for (i = 0; pkt && i < nb_output_streams; i++) {
1909 OutputStream *ost = output_streams[i];
1911 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1914 do_streamcopy(ist, ost, pkt);
1920 static void print_sdp(void)
1924 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1928 for (i = 0; i < nb_output_files; i++)
1929 avc[i] = output_files[i]->ctx;
1931 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1932 printf("SDP:\n%s\n", sdp);
1937 static int init_input_stream(int ist_index, char *error, int error_len)
1940 InputStream *ist = input_streams[ist_index];
1942 if (ist->decoding_needed) {
1943 AVCodec *codec = ist->dec;
1945 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1946 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1947 return AVERROR(EINVAL);
1950 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1951 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1952 ist->st->codec->get_buffer = codec_get_buffer;
1953 ist->st->codec->release_buffer = codec_release_buffer;
1954 ist->st->codec->opaque = &ist->buffer_pool;
1957 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1958 av_dict_set(&ist->opts, "threads", "auto", 0);
1959 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1960 if (ret == AVERROR_EXPERIMENTAL)
1961 abort_codec_experimental(codec, 0);
1962 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1963 ist->file_index, ist->st->index);
1966 assert_avoptions(ist->opts);
1969 ist->next_pts = AV_NOPTS_VALUE;
1970 ist->next_dts = AV_NOPTS_VALUE;
1976 static InputStream *get_input_stream(OutputStream *ost)
1978 if (ost->source_index >= 0)
1979 return input_streams[ost->source_index];
1983 static int compare_int64(const void *a, const void *b)
1985 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
1986 return va < vb ? -1 : va > vb ? +1 : 0;
1989 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1990 AVCodecContext *avctx)
1993 int n = 1, i, size, index = 0;
1996 for (p = kf; *p; p++)
2000 pts = av_malloc(sizeof(*pts) * size);
2002 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2007 for (i = 0; i < n; i++) {
2008 char *next = strchr(p, ',');
2013 if (!memcmp(p, "chapters", 8)) {
2015 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2018 if (avf->nb_chapters > INT_MAX - size ||
2019 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2021 av_log(NULL, AV_LOG_FATAL,
2022 "Could not allocate forced key frames array.\n");
2025 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2026 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2028 for (j = 0; j < avf->nb_chapters; j++) {
2029 AVChapter *c = avf->chapters[j];
2030 av_assert1(index < size);
2031 pts[index++] = av_rescale_q(c->start, c->time_base,
2032 avctx->time_base) + t;
2037 t = parse_time_or_die("force_key_frames", p, 1);
2038 av_assert1(index < size);
2039 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2046 av_assert0(index == size);
2047 qsort(pts, size, sizeof(*pts), compare_int64);
2048 ost->forced_kf_count = size;
2049 ost->forced_kf_pts = pts;
2052 static void report_new_stream(int input_index, AVPacket *pkt)
2054 InputFile *file = input_files[input_index];
2055 AVStream *st = file->ctx->streams[pkt->stream_index];
2057 if (pkt->stream_index < file->nb_streams_warn)
2059 av_log(file->ctx, AV_LOG_WARNING,
2060 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2061 av_get_media_type_string(st->codec->codec_type),
2062 input_index, pkt->stream_index,
2063 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2064 file->nb_streams_warn = pkt->stream_index + 1;
2067 static int transcode_init(void)
2069 int ret = 0, i, j, k;
2070 AVFormatContext *oc;
2071 AVCodecContext *codec;
2077 /* init framerate emulation */
2078 for (i = 0; i < nb_input_files; i++) {
2079 InputFile *ifile = input_files[i];
2080 if (ifile->rate_emu)
2081 for (j = 0; j < ifile->nb_streams; j++)
2082 input_streams[j + ifile->ist_index]->start = av_gettime();
2085 /* output stream init */
2086 for (i = 0; i < nb_output_files; i++) {
2087 oc = output_files[i]->ctx;
2088 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2089 av_dump_format(oc, i, oc->filename, 1);
2090 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2091 return AVERROR(EINVAL);
2095 /* init complex filtergraphs */
2096 for (i = 0; i < nb_filtergraphs; i++)
2097 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2100 /* for each output stream, we compute the right encoding parameters */
2101 for (i = 0; i < nb_output_streams; i++) {
2102 AVCodecContext *icodec = NULL;
2103 ost = output_streams[i];
2104 oc = output_files[ost->file_index]->ctx;
2105 ist = get_input_stream(ost);
2107 if (ost->attachment_filename)
2110 codec = ost->st->codec;
2113 icodec = ist->st->codec;
2115 ost->st->disposition = ist->st->disposition;
2116 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2117 codec->chroma_sample_location = icodec->chroma_sample_location;
2120 if (ost->stream_copy) {
2121 uint64_t extra_size;
2123 av_assert0(ist && !ost->filter);
2125 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2127 if (extra_size > INT_MAX) {
2128 return AVERROR(EINVAL);
2131 /* if stream_copy is selected, no need to decode or encode */
2132 codec->codec_id = icodec->codec_id;
2133 codec->codec_type = icodec->codec_type;
2135 if (!codec->codec_tag) {
2136 unsigned int codec_tag;
2137 if (!oc->oformat->codec_tag ||
2138 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2139 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2140 codec->codec_tag = icodec->codec_tag;
2143 codec->bit_rate = icodec->bit_rate;
2144 codec->rc_max_rate = icodec->rc_max_rate;
2145 codec->rc_buffer_size = icodec->rc_buffer_size;
2146 codec->field_order = icodec->field_order;
2147 codec->extradata = av_mallocz(extra_size);
2148 if (!codec->extradata) {
2149 return AVERROR(ENOMEM);
2151 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2152 codec->extradata_size= icodec->extradata_size;
2153 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2155 codec->time_base = ist->st->time_base;
2157 * Avi is a special case here because it supports variable fps but
2158 * having the fps and timebase differe significantly adds quite some
2161 if(!strcmp(oc->oformat->name, "avi")) {
2162 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2163 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2164 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2165 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2167 codec->time_base.num = ist->st->r_frame_rate.den;
2168 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2169 codec->ticks_per_frame = 2;
2170 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2171 && av_q2d(ist->st->time_base) < 1.0/500
2173 codec->time_base = icodec->time_base;
2174 codec->time_base.num *= icodec->ticks_per_frame;
2175 codec->time_base.den *= 2;
2176 codec->ticks_per_frame = 2;
2178 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2179 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2180 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2181 && strcmp(oc->oformat->name, "f4v")
2183 if( copy_tb<0 && icodec->time_base.den
2184 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2185 && av_q2d(ist->st->time_base) < 1.0/500
2187 codec->time_base = icodec->time_base;
2188 codec->time_base.num *= icodec->ticks_per_frame;
2191 if ( codec->codec_tag == AV_RL32("tmcd")
2192 && icodec->time_base.num < icodec->time_base.den
2193 && icodec->time_base.num > 0
2194 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2195 codec->time_base = icodec->time_base;
2198 if(ost->frame_rate.num)
2199 codec->time_base = av_inv_q(ost->frame_rate);
2201 av_reduce(&codec->time_base.num, &codec->time_base.den,
2202 codec->time_base.num, codec->time_base.den, INT_MAX);
2204 switch (codec->codec_type) {
2205 case AVMEDIA_TYPE_AUDIO:
2206 if (audio_volume != 256) {
2207 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2210 codec->channel_layout = icodec->channel_layout;
2211 codec->sample_rate = icodec->sample_rate;
2212 codec->channels = icodec->channels;
2213 codec->frame_size = icodec->frame_size;
2214 codec->audio_service_type = icodec->audio_service_type;
2215 codec->block_align = icodec->block_align;
2216 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2217 codec->block_align= 0;
2218 if(codec->codec_id == AV_CODEC_ID_AC3)
2219 codec->block_align= 0;
2221 case AVMEDIA_TYPE_VIDEO:
2222 codec->pix_fmt = icodec->pix_fmt;
2223 codec->width = icodec->width;
2224 codec->height = icodec->height;
2225 codec->has_b_frames = icodec->has_b_frames;
2226 if (!codec->sample_aspect_ratio.num) {
2227 codec->sample_aspect_ratio =
2228 ost->st->sample_aspect_ratio =
2229 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2230 ist->st->codec->sample_aspect_ratio.num ?
2231 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2233 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2235 case AVMEDIA_TYPE_SUBTITLE:
2236 codec->width = icodec->width;
2237 codec->height = icodec->height;
2239 case AVMEDIA_TYPE_DATA:
2240 case AVMEDIA_TYPE_ATTACHMENT:
2247 ost->enc = avcodec_find_encoder(codec->codec_id);
2249 /* should only happen when a default codec is not present. */
2250 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2251 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2252 ret = AVERROR(EINVAL);
2257 ist->decoding_needed++;
2258 ost->encoding_needed = 1;
2261 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2262 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2264 fg = init_simple_filtergraph(ist, ost);
2265 if (configure_filtergraph(fg)) {
2266 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2271 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2272 if (ost->filter && !ost->frame_rate.num)
2273 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2274 if (ist && !ost->frame_rate.num)
2275 ost->frame_rate = ist->framerate;
2276 if (ist && !ost->frame_rate.num)
2277 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2278 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2279 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2280 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2281 ost->frame_rate = ost->enc->supported_framerates[idx];
2285 switch (codec->codec_type) {
2286 case AVMEDIA_TYPE_AUDIO:
2287 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2288 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2289 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2290 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2291 codec->time_base = (AVRational){ 1, codec->sample_rate };
2293 case AVMEDIA_TYPE_VIDEO:
2294 codec->time_base = av_inv_q(ost->frame_rate);
2295 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2296 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2297 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2298 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2299 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2300 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2302 for (j = 0; j < ost->forced_kf_count; j++)
2303 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2307 codec->width = ost->filter->filter->inputs[0]->w;
2308 codec->height = ost->filter->filter->inputs[0]->h;
2309 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2310 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2311 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2312 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2313 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2316 codec->width != icodec->width ||
2317 codec->height != icodec->height ||
2318 codec->pix_fmt != icodec->pix_fmt) {
2319 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2322 if (ost->forced_keyframes) {
2323 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2324 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2325 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2327 av_log(NULL, AV_LOG_ERROR,
2328 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2331 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2332 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2333 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2334 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2336 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2340 case AVMEDIA_TYPE_SUBTITLE:
2341 codec->time_base = (AVRational){1, 1000};
2342 if (!codec->width) {
2343 codec->width = input_streams[ost->source_index]->st->codec->width;
2344 codec->height = input_streams[ost->source_index]->st->codec->height;
2352 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2353 char logfilename[1024];
2356 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2357 ost->logfile_prefix ? ost->logfile_prefix :
2358 DEFAULT_PASS_LOGFILENAME_PREFIX,
2360 if (!strcmp(ost->enc->name, "libx264")) {
2361 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2363 if (codec->flags & CODEC_FLAG_PASS2) {
2365 size_t logbuffer_size;
2366 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2367 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2371 codec->stats_in = logbuffer;
2373 if (codec->flags & CODEC_FLAG_PASS1) {
2374 f = fopen(logfilename, "wb");
2376 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2377 logfilename, strerror(errno));
2387 /* open each encoder */
2388 for (i = 0; i < nb_output_streams; i++) {
2389 ost = output_streams[i];
2390 if (ost->encoding_needed) {
2391 AVCodec *codec = ost->enc;
2392 AVCodecContext *dec = NULL;
2394 if ((ist = get_input_stream(ost)))
2395 dec = ist->st->codec;
2396 if (dec && dec->subtitle_header) {
2397 /* ASS code assumes this buffer is null terminated so add extra byte. */
2398 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2399 if (!ost->st->codec->subtitle_header) {
2400 ret = AVERROR(ENOMEM);
2403 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2404 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2406 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2407 av_dict_set(&ost->opts, "threads", "auto", 0);
2408 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2409 if (ret == AVERROR_EXPERIMENTAL)
2410 abort_codec_experimental(codec, 1);
2411 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2412 ost->file_index, ost->index);
2415 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2416 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2417 av_buffersink_set_frame_size(ost->filter->filter,
2418 ost->st->codec->frame_size);
2419 assert_avoptions(ost->opts);
2420 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2421 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2422 " It takes bits/s as argument, not kbits/s\n");
2423 extra_size += ost->st->codec->extradata_size;
2425 if (ost->st->codec->me_threshold)
2426 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2428 av_opt_set_dict(ost->st->codec, &ost->opts);
2432 /* init input streams */
2433 for (i = 0; i < nb_input_streams; i++)
2434 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2437 /* discard unused programs */
2438 for (i = 0; i < nb_input_files; i++) {
2439 InputFile *ifile = input_files[i];
2440 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2441 AVProgram *p = ifile->ctx->programs[j];
2442 int discard = AVDISCARD_ALL;
2444 for (k = 0; k < p->nb_stream_indexes; k++)
2445 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2446 discard = AVDISCARD_DEFAULT;
2449 p->discard = discard;
2453 /* open files and write file headers */
2454 for (i = 0; i < nb_output_files; i++) {
2455 oc = output_files[i]->ctx;
2456 oc->interrupt_callback = int_cb;
2457 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2459 const char *errbuf_ptr = errbuf;
2460 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2461 errbuf_ptr = strerror(AVUNERROR(ret));
2462 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2463 ret = AVERROR(EINVAL);
2466 // assert_avoptions(output_files[i]->opts);
2467 if (strcmp(oc->oformat->name, "rtp")) {
2473 /* dump the file output parameters - cannot be done before in case
2475 for (i = 0; i < nb_output_files; i++) {
2476 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2479 /* dump the stream mapping */
2480 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2481 for (i = 0; i < nb_input_streams; i++) {
2482 ist = input_streams[i];
2484 for (j = 0; j < ist->nb_filters; j++) {
2485 if (ist->filters[j]->graph->graph_desc) {
2486 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2487 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2488 ist->filters[j]->name);
2489 if (nb_filtergraphs > 1)
2490 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2491 av_log(NULL, AV_LOG_INFO, "\n");
2496 for (i = 0; i < nb_output_streams; i++) {
2497 ost = output_streams[i];
2499 if (ost->attachment_filename) {
2500 /* an attached file */
2501 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2502 ost->attachment_filename, ost->file_index, ost->index);
2506 if (ost->filter && ost->filter->graph->graph_desc) {
2507 /* output from a complex graph */
2508 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2509 if (nb_filtergraphs > 1)
2510 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2512 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2513 ost->index, ost->enc ? ost->enc->name : "?");
2517 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2518 input_streams[ost->source_index]->file_index,
2519 input_streams[ost->source_index]->st->index,
2522 if (ost->sync_ist != input_streams[ost->source_index])
2523 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2524 ost->sync_ist->file_index,
2525 ost->sync_ist->st->index);
2526 if (ost->stream_copy)
2527 av_log(NULL, AV_LOG_INFO, " (copy)");
2529 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2530 input_streams[ost->source_index]->dec->name : "?",
2531 ost->enc ? ost->enc->name : "?");
2532 av_log(NULL, AV_LOG_INFO, "\n");
2536 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2547 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2548 static int need_output(void)
2552 for (i = 0; i < nb_output_streams; i++) {
2553 OutputStream *ost = output_streams[i];
2554 OutputFile *of = output_files[ost->file_index];
2555 AVFormatContext *os = output_files[ost->file_index]->ctx;
2557 if (ost->finished ||
2558 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2560 if (ost->frame_number >= ost->max_frames) {
2562 for (j = 0; j < of->ctx->nb_streams; j++)
2563 close_output_stream(output_streams[of->ost_index + j]);
2574 * Select the output stream to process.
2576 * @return selected output stream, or NULL if none available
2578 static OutputStream *choose_output(void)
2581 int64_t opts_min = INT64_MAX;
2582 OutputStream *ost_min = NULL;
2584 for (i = 0; i < nb_output_streams; i++) {
2585 OutputStream *ost = output_streams[i];
2586 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2588 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2596 static int check_keyboard_interaction(int64_t cur_time)
2599 static int64_t last_time;
2600 if (received_nb_signals)
2601 return AVERROR_EXIT;
2602 /* read_key() returns 0 on EOF */
2603 if(cur_time - last_time >= 100000 && !run_as_daemon){
2605 last_time = cur_time;
2609 return AVERROR_EXIT;
2610 if (key == '+') av_log_set_level(av_log_get_level()+10);
2611 if (key == '-') av_log_set_level(av_log_get_level()-10);
2612 if (key == 's') qp_hist ^= 1;
2615 do_hex_dump = do_pkt_dump = 0;
2616 } else if(do_pkt_dump){
2620 av_log_set_level(AV_LOG_DEBUG);
2622 if (key == 'c' || key == 'C'){
2623 char buf[4096], target[64], command[256], arg[256] = {0};
2626 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2628 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2633 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2634 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2635 target, time, command, arg);
2636 for (i = 0; i < nb_filtergraphs; i++) {
2637 FilterGraph *fg = filtergraphs[i];
2640 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2641 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2642 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2644 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2649 av_log(NULL, AV_LOG_ERROR,
2650 "Parse error, at least 3 arguments were expected, "
2651 "only %d given in string '%s'\n", n, buf);
2654 if (key == 'd' || key == 'D'){
2657 debug = input_streams[0]->st->codec->debug<<1;
2658 if(!debug) debug = 1;
2659 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2662 if(scanf("%d", &debug)!=1)
2663 fprintf(stderr,"error parsing debug value\n");
2664 for(i=0;i<nb_input_streams;i++) {
2665 input_streams[i]->st->codec->debug = debug;
2667 for(i=0;i<nb_output_streams;i++) {
2668 OutputStream *ost = output_streams[i];
2669 ost->st->codec->debug = debug;
2671 if(debug) av_log_set_level(AV_LOG_DEBUG);
2672 fprintf(stderr,"debug=%d\n", debug);
2675 fprintf(stderr, "key function\n"
2676 "? show this help\n"
2677 "+ increase verbosity\n"
2678 "- decrease verbosity\n"
2679 "c Send command to filtergraph\n"
2680 "D cycle through available debug modes\n"
2681 "h dump packets/hex press to cycle through the 3 states\n"
2683 "s Show QP histogram\n"
2690 static void *input_thread(void *arg)
2695 while (!transcoding_finished && ret >= 0) {
2697 ret = av_read_frame(f->ctx, &pkt);
2699 if (ret == AVERROR(EAGAIN)) {
2706 pthread_mutex_lock(&f->fifo_lock);
2707 while (!av_fifo_space(f->fifo))
2708 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2710 av_dup_packet(&pkt);
2711 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2713 pthread_mutex_unlock(&f->fifo_lock);
2720 static void free_input_threads(void)
2724 if (nb_input_files == 1)
2727 transcoding_finished = 1;
2729 for (i = 0; i < nb_input_files; i++) {
2730 InputFile *f = input_files[i];
2733 if (!f->fifo || f->joined)
2736 pthread_mutex_lock(&f->fifo_lock);
2737 while (av_fifo_size(f->fifo)) {
2738 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2739 av_free_packet(&pkt);
2741 pthread_cond_signal(&f->fifo_cond);
2742 pthread_mutex_unlock(&f->fifo_lock);
2744 pthread_join(f->thread, NULL);
2747 while (av_fifo_size(f->fifo)) {
2748 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2749 av_free_packet(&pkt);
2751 av_fifo_free(f->fifo);
2755 static int init_input_threads(void)
2759 if (nb_input_files == 1)
2762 for (i = 0; i < nb_input_files; i++) {
2763 InputFile *f = input_files[i];
2765 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2766 return AVERROR(ENOMEM);
2768 pthread_mutex_init(&f->fifo_lock, NULL);
2769 pthread_cond_init (&f->fifo_cond, NULL);
2771 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2772 return AVERROR(ret);
2777 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2781 pthread_mutex_lock(&f->fifo_lock);
2783 if (av_fifo_size(f->fifo)) {
2784 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2785 pthread_cond_signal(&f->fifo_cond);
2790 ret = AVERROR(EAGAIN);
2793 pthread_mutex_unlock(&f->fifo_lock);
2799 static int get_input_packet(InputFile *f, AVPacket *pkt)
2802 if (nb_input_files > 1)
2803 return get_input_packet_mt(f, pkt);
2805 return av_read_frame(f->ctx, pkt);
2808 static int got_eagain(void)
2811 for (i = 0; i < nb_output_streams; i++)
2812 if (output_streams[i]->unavailable)
2817 static void reset_eagain(void)
2820 for (i = 0; i < nb_input_files; i++)
2821 input_files[i]->eagain = 0;
2822 for (i = 0; i < nb_output_streams; i++)
2823 output_streams[i]->unavailable = 0;
2828 * - 0 -- one packet was read and processed
2829 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2830 * this function should be called again
2831 * - AVERROR_EOF -- this function should not be called again
2833 static int process_input(int file_index)
2835 InputFile *ifile = input_files[file_index];
2836 AVFormatContext *is;
2842 ret = get_input_packet(ifile, &pkt);
2844 if (ret == AVERROR(EAGAIN)) {
2849 if (ret != AVERROR_EOF) {
2850 print_error(is->filename, ret);
2854 ifile->eof_reached = 1;
2856 for (i = 0; i < ifile->nb_streams; i++) {
2857 ist = input_streams[ifile->ist_index + i];
2858 if (ist->decoding_needed)
2859 output_packet(ist, NULL);
2861 /* mark all outputs that don't go through lavfi as finished */
2862 for (j = 0; j < nb_output_streams; j++) {
2863 OutputStream *ost = output_streams[j];
2865 if (ost->source_index == ifile->ist_index + i &&
2866 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2867 close_output_stream(ost);
2871 return AVERROR(EAGAIN);
2877 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2878 is->streams[pkt.stream_index]);
2880 /* the following test is needed in case new streams appear
2881 dynamically in stream : we ignore them */
2882 if (pkt.stream_index >= ifile->nb_streams) {
2883 report_new_stream(file_index, &pkt);
2884 goto discard_packet;
2887 ist = input_streams[ifile->ist_index + pkt.stream_index];
2889 goto discard_packet;
2892 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2893 "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",
2894 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2895 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2896 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2897 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2898 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2899 av_ts2str(input_files[ist->file_index]->ts_offset),
2900 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2903 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2904 int64_t stime, stime2;
2905 // Correcting starttime based on the enabled streams
2906 // 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.
2907 // so we instead do it here as part of discontinuity handling
2908 if ( ist->next_dts == AV_NOPTS_VALUE
2909 && ifile->ts_offset == -is->start_time
2910 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2911 int64_t new_start_time = INT64_MAX;
2912 for (i=0; i<is->nb_streams; i++) {
2913 AVStream *st = is->streams[i];
2914 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2916 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2918 if (new_start_time > is->start_time) {
2919 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2920 ifile->ts_offset = -new_start_time;
2924 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2925 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2926 ist->wrap_correction_done = 1;
2928 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2929 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2930 ist->wrap_correction_done = 0;
2932 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2933 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2934 ist->wrap_correction_done = 0;
2938 if (pkt.dts != AV_NOPTS_VALUE)
2939 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2940 if (pkt.pts != AV_NOPTS_VALUE)
2941 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2943 if (pkt.pts != AV_NOPTS_VALUE)
2944 pkt.pts *= ist->ts_scale;
2945 if (pkt.dts != AV_NOPTS_VALUE)
2946 pkt.dts *= ist->ts_scale;
2948 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2950 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2951 int64_t delta = pkt_dts - ist->next_dts;
2952 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2953 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2954 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2955 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2956 pkt_dts+1<ist->pts){
2957 ifile->ts_offset -= delta;
2958 av_log(NULL, AV_LOG_DEBUG,
2959 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2960 delta, ifile->ts_offset);
2961 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2962 if (pkt.pts != AV_NOPTS_VALUE)
2963 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2966 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2967 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2969 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2970 pkt.dts = AV_NOPTS_VALUE;
2972 if (pkt.pts != AV_NOPTS_VALUE){
2973 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2974 delta = pkt_pts - ist->next_dts;
2975 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2976 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2978 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2979 pkt.pts = AV_NOPTS_VALUE;
2986 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",
2987 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2988 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2989 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2990 av_ts2str(input_files[ist->file_index]->ts_offset),
2991 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2994 sub2video_heartbeat(ist, pkt.pts);
2996 ret = output_packet(ist, &pkt);
2999 av_strerror(ret, buf, sizeof(buf));
3000 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3001 ist->file_index, ist->st->index, buf);
3007 av_free_packet(&pkt);
3013 * Perform a step of transcoding for the specified filter graph.
3015 * @param[in] graph filter graph to consider
3016 * @param[out] best_ist input stream where a frame would allow to continue
3017 * @return 0 for success, <0 for error
3019 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3022 int nb_requests, nb_requests_max = 0;
3023 InputFilter *ifilter;
3027 ret = avfilter_graph_request_oldest(graph->graph);
3029 return reap_filters();
3031 if (ret == AVERROR_EOF) {
3032 ret = reap_filters();
3033 for (i = 0; i < graph->nb_outputs; i++)
3034 close_output_stream(graph->outputs[i]->ost);
3037 if (ret != AVERROR(EAGAIN))
3040 for (i = 0; i < graph->nb_inputs; i++) {
3041 ifilter = graph->inputs[i];
3043 if (input_files[ist->file_index]->eagain ||
3044 input_files[ist->file_index]->eof_reached)
3046 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3047 if (nb_requests > nb_requests_max) {
3048 nb_requests_max = nb_requests;
3054 for (i = 0; i < graph->nb_outputs; i++)
3055 graph->outputs[i]->ost->unavailable = 1;
3061 * Run a single step of transcoding.
3063 * @return 0 for success, <0 for error
3065 static int transcode_step(void)
3071 ost = choose_output();
3078 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3083 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3088 av_assert0(ost->source_index >= 0);
3089 ist = input_streams[ost->source_index];
3092 ret = process_input(ist->file_index);
3093 if (ret == AVERROR(EAGAIN)) {
3094 if (input_files[ist->file_index]->eagain)
3095 ost->unavailable = 1;
3099 return ret == AVERROR_EOF ? 0 : ret;
3101 return reap_filters();
3105 * The following code is the main loop of the file converter
3107 static int transcode(void)
3110 AVFormatContext *os;
3113 int64_t timer_start;
3115 ret = transcode_init();
3119 if (stdin_interaction) {
3120 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3123 timer_start = av_gettime();
3126 if ((ret = init_input_threads()) < 0)
3130 while (!received_sigterm) {
3131 int64_t cur_time= av_gettime();
3133 /* if 'q' pressed, exits */
3134 if (stdin_interaction)
3135 if (check_keyboard_interaction(cur_time) < 0)
3138 /* check if there's any stream where output is still needed */
3139 if (!need_output()) {
3140 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3144 ret = transcode_step();
3146 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3149 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3153 /* dump report by using the output first video and audio streams */
3154 print_report(0, timer_start, cur_time);
3157 free_input_threads();
3160 /* at the end of stream, we must flush the decoder buffers */
3161 for (i = 0; i < nb_input_streams; i++) {
3162 ist = input_streams[i];
3163 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3164 output_packet(ist, NULL);
3171 /* write the trailer if needed and close file */
3172 for (i = 0; i < nb_output_files; i++) {
3173 os = output_files[i]->ctx;
3174 av_write_trailer(os);
3177 /* dump report by using the first video and audio streams */
3178 print_report(1, timer_start, av_gettime());
3180 /* close each encoder */
3181 for (i = 0; i < nb_output_streams; i++) {
3182 ost = output_streams[i];
3183 if (ost->encoding_needed) {
3184 av_freep(&ost->st->codec->stats_in);
3185 avcodec_close(ost->st->codec);
3189 /* close each decoder */
3190 for (i = 0; i < nb_input_streams; i++) {
3191 ist = input_streams[i];
3192 if (ist->decoding_needed) {
3193 avcodec_close(ist->st->codec);
3202 free_input_threads();
3205 if (output_streams) {
3206 for (i = 0; i < nb_output_streams; i++) {
3207 ost = output_streams[i];
3209 if (ost->stream_copy)
3210 av_freep(&ost->st->codec->extradata);
3212 fclose(ost->logfile);
3213 ost->logfile = NULL;
3215 av_freep(&ost->st->codec->subtitle_header);
3216 av_free(ost->forced_kf_pts);
3217 av_dict_free(&ost->opts);
3218 av_dict_free(&ost->swr_opts);
3219 av_dict_free(&ost->resample_opts);
3227 static int64_t getutime(void)
3230 struct rusage rusage;
3232 getrusage(RUSAGE_SELF, &rusage);
3233 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3234 #elif HAVE_GETPROCESSTIMES
3236 FILETIME c, e, k, u;
3237 proc = GetCurrentProcess();
3238 GetProcessTimes(proc, &c, &e, &k, &u);
3239 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3241 return av_gettime();
3245 static int64_t getmaxrss(void)
3247 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3248 struct rusage rusage;
3249 getrusage(RUSAGE_SELF, &rusage);
3250 return (int64_t)rusage.ru_maxrss * 1024;
3251 #elif HAVE_GETPROCESSMEMORYINFO
3253 PROCESS_MEMORY_COUNTERS memcounters;
3254 proc = GetCurrentProcess();
3255 memcounters.cb = sizeof(memcounters);
3256 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3257 return memcounters.PeakPagefileUsage;
3263 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3267 int main(int argc, char **argv)
3272 atexit(exit_program);
3274 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3276 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3277 parse_loglevel(argc, argv, options);
3279 if(argc>1 && !strcmp(argv[1], "-d")){
3281 av_log_set_callback(log_callback_null);
3286 avcodec_register_all();
3288 avdevice_register_all();
3290 avfilter_register_all();
3292 avformat_network_init();
3294 show_banner(argc, argv, options);
3298 /* parse options and open all input/output files */
3299 ret = ffmpeg_parse_options(argc, argv);
3303 if (nb_output_files <= 0 && nb_input_files == 0) {
3305 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3309 /* file converter / grab */
3310 if (nb_output_files <= 0) {
3311 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3315 // if (nb_input_files == 0) {
3316 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3320 current_time = ti = getutime();
3321 if (transcode() < 0)
3323 ti = getutime() - ti;
3325 int maxrss = getmaxrss() / 1024;
3326 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
3329 exit(received_nb_signals ? 255 : 0);