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);
123 static int64_t getmaxrss(void);
125 static int run_as_daemon = 0;
126 static int64_t video_size = 0;
127 static int64_t audio_size = 0;
128 static int64_t subtitle_size = 0;
129 static int64_t extra_size = 0;
130 static int nb_frames_dup = 0;
131 static int nb_frames_drop = 0;
133 static int current_time;
134 AVIOContext *progress_avio = NULL;
136 static uint8_t *subtitle_out;
139 /* signal to input threads that they should exit; set by the main thread */
140 static int transcoding_finished;
143 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
145 InputStream **input_streams = NULL;
146 int nb_input_streams = 0;
147 InputFile **input_files = NULL;
148 int nb_input_files = 0;
150 OutputStream **output_streams = NULL;
151 int nb_output_streams = 0;
152 OutputFile **output_files = NULL;
153 int nb_output_files = 0;
155 FilterGraph **filtergraphs;
160 /* init terminal so that we can grab keys */
161 static struct termios oldtty;
162 static int restore_tty;
167 Convert subtitles to video with alpha to insert them in filter graphs.
168 This is a temporary solution until libavfilter gets real subtitles support.
171 static int sub2video_get_blank_frame(InputStream *ist)
174 AVFrame *frame = ist->sub2video.frame;
176 av_frame_unref(frame);
177 ist->sub2video.frame->width = ist->sub2video.w;
178 ist->sub2video.frame->height = ist->sub2video.h;
179 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
180 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
182 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
186 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
189 uint32_t *pal, *dst2;
193 if (r->type != SUBTITLE_BITMAP) {
194 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
197 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
198 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
202 dst += r->y * dst_linesize + r->x * 4;
203 src = r->pict.data[0];
204 pal = (uint32_t *)r->pict.data[1];
205 for (y = 0; y < r->h; y++) {
206 dst2 = (uint32_t *)dst;
208 for (x = 0; x < r->w; x++)
209 *(dst2++) = pal[*(src2++)];
211 src += r->pict.linesize[0];
215 static void sub2video_push_ref(InputStream *ist, int64_t pts)
217 AVFrame *frame = ist->sub2video.frame;
220 av_assert1(frame->data[0]);
221 ist->sub2video.last_pts = frame->pts = pts;
222 for (i = 0; i < ist->nb_filters; i++)
223 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
224 AV_BUFFERSRC_FLAG_KEEP_REF |
225 AV_BUFFERSRC_FLAG_PUSH);
228 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
230 int w = ist->sub2video.w, h = ist->sub2video.h;
231 AVFrame *frame = ist->sub2video.frame;
235 int64_t pts, end_pts;
240 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
241 AV_TIME_BASE_Q, ist->st->time_base);
242 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
243 AV_TIME_BASE_Q, ist->st->time_base);
244 num_rects = sub->num_rects;
246 pts = ist->sub2video.end_pts;
250 if (sub2video_get_blank_frame(ist) < 0) {
251 av_log(ist->st->codec, AV_LOG_ERROR,
252 "Impossible to get a blank canvas.\n");
255 dst = frame->data [0];
256 dst_linesize = frame->linesize[0];
257 for (i = 0; i < num_rects; i++)
258 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
259 sub2video_push_ref(ist, pts);
260 ist->sub2video.end_pts = end_pts;
263 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
265 InputFile *infile = input_files[ist->file_index];
269 /* When a frame is read from a file, examine all sub2video streams in
270 the same file and send the sub2video frame again. Otherwise, decoded
271 video frames could be accumulating in the filter graph while a filter
272 (possibly overlay) is desperately waiting for a subtitle frame. */
273 for (i = 0; i < infile->nb_streams; i++) {
274 InputStream *ist2 = input_streams[infile->ist_index + i];
275 if (!ist2->sub2video.frame)
277 /* subtitles seem to be usually muxed ahead of other streams;
278 if not, substracting a larger time here is necessary */
279 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
280 /* do not send the heartbeat frame if the subtitle is already ahead */
281 if (pts2 <= ist2->sub2video.last_pts)
283 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
284 sub2video_update(ist2, NULL);
285 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
286 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
288 sub2video_push_ref(ist2, pts2);
292 static void sub2video_flush(InputStream *ist)
296 for (i = 0; i < ist->nb_filters; i++)
297 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
300 /* end of sub2video hack */
304 av_log(NULL, AV_LOG_QUIET, "%s", "");
307 tcsetattr (0, TCSANOW, &oldtty);
311 static volatile int received_sigterm = 0;
312 static volatile int received_nb_signals = 0;
315 sigterm_handler(int sig)
317 received_sigterm = sig;
318 received_nb_signals++;
320 if(received_nb_signals > 3)
331 istty = isatty(0) && isatty(2);
333 if (istty && tcgetattr (0, &tty) == 0) {
338 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
339 |INLCR|IGNCR|ICRNL|IXON);
340 tty.c_oflag |= OPOST;
341 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
342 tty.c_cflag &= ~(CSIZE|PARENB);
347 tcsetattr (0, TCSANOW, &tty);
349 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
352 avformat_network_deinit();
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
357 signal(SIGXCPU, sigterm_handler);
361 /* read a key without blocking */
362 static int read_key(void)
374 n = select(1, &rfds, NULL, NULL, &tv);
383 # if HAVE_PEEKNAMEDPIPE
385 static HANDLE input_handle;
388 input_handle = GetStdHandle(STD_INPUT_HANDLE);
389 is_pipe = !GetConsoleMode(input_handle, &dw);
392 if (stdin->_cnt > 0) {
397 /* When running under a GUI, you will end here. */
398 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
399 // input pipe may have been closed by the program that ran ffmpeg
417 static int decode_interrupt_cb(void *ctx)
419 return received_nb_signals > 1;
422 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
424 static void exit_program(void)
429 int maxrss = getmaxrss() / 1024;
430 printf("bench: maxrss=%ikB\n", maxrss);
433 for (i = 0; i < nb_filtergraphs; i++) {
434 avfilter_graph_free(&filtergraphs[i]->graph);
435 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
436 av_freep(&filtergraphs[i]->inputs[j]->name);
437 av_freep(&filtergraphs[i]->inputs[j]);
439 av_freep(&filtergraphs[i]->inputs);
440 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
441 av_freep(&filtergraphs[i]->outputs[j]->name);
442 av_freep(&filtergraphs[i]->outputs[j]);
444 av_freep(&filtergraphs[i]->outputs);
445 av_freep(&filtergraphs[i]->graph_desc);
446 av_freep(&filtergraphs[i]);
448 av_freep(&filtergraphs);
450 av_freep(&subtitle_out);
453 for (i = 0; i < nb_output_files; i++) {
454 AVFormatContext *s = output_files[i]->ctx;
455 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
457 avformat_free_context(s);
458 av_dict_free(&output_files[i]->opts);
459 av_freep(&output_files[i]);
461 for (i = 0; i < nb_output_streams; i++) {
462 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
464 AVBitStreamFilterContext *next = bsfc->next;
465 av_bitstream_filter_close(bsfc);
468 output_streams[i]->bitstream_filters = NULL;
469 avcodec_free_frame(&output_streams[i]->filtered_frame);
471 av_freep(&output_streams[i]->forced_keyframes);
472 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
473 av_freep(&output_streams[i]->avfilter);
474 av_freep(&output_streams[i]->logfile_prefix);
475 av_freep(&output_streams[i]);
477 for (i = 0; i < nb_input_files; i++) {
478 avformat_close_input(&input_files[i]->ctx);
479 av_freep(&input_files[i]);
481 for (i = 0; i < nb_input_streams; i++) {
482 av_frame_free(&input_streams[i]->decoded_frame);
483 av_frame_free(&input_streams[i]->filter_frame);
484 av_dict_free(&input_streams[i]->opts);
485 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
486 av_frame_free(&input_streams[i]->sub2video.frame);
487 av_freep(&input_streams[i]->filters);
488 av_freep(&input_streams[i]);
493 av_free(vstats_filename);
495 av_freep(&input_streams);
496 av_freep(&input_files);
497 av_freep(&output_streams);
498 av_freep(&output_files);
503 avformat_network_deinit();
505 if (received_sigterm) {
506 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
507 (int) received_sigterm);
511 void assert_avoptions(AVDictionary *m)
513 AVDictionaryEntry *t;
514 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
515 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
520 static void abort_codec_experimental(AVCodec *c, int encoder)
525 static void update_benchmark(const char *fmt, ...)
527 if (do_benchmark_all) {
528 int64_t t = getutime();
534 vsnprintf(buf, sizeof(buf), fmt, va);
536 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
542 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
544 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
545 AVCodecContext *avctx = ost->st->codec;
548 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
549 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
550 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
552 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
553 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
554 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
555 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
556 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
557 if(pkt->pts >= pkt->dts)
558 pkt->pts = FFMAX(pkt->pts, max);
564 * Audio encoders may split the packets -- #frames in != #packets out.
565 * But there is no reordering, so we can limit the number of output packets
566 * by simply dropping them here.
567 * Counting encoded video frames needs to be done separately because of
568 * reordering, see do_video_out()
570 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
571 if (ost->frame_number >= ost->max_frames) {
579 AVPacket new_pkt = *pkt;
580 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
581 &new_pkt.data, &new_pkt.size,
582 pkt->data, pkt->size,
583 pkt->flags & AV_PKT_FLAG_KEY);
584 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
585 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
587 memcpy(t, new_pkt.data, new_pkt.size);
588 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
597 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
598 av_buffer_default_free, NULL, 0);
602 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
603 bsfc->filter->name, pkt->stream_index,
604 avctx->codec ? avctx->codec->name : "copy");
614 pkt->stream_index = ost->index;
617 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
618 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
619 av_get_media_type_string(ost->st->codec->codec_type),
620 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
621 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
626 ret = av_interleaved_write_frame(s, pkt);
628 print_error("av_interleaved_write_frame()", ret);
633 static void close_output_stream(OutputStream *ost)
635 OutputFile *of = output_files[ost->file_index];
639 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
640 of->recording_time = FFMIN(of->recording_time, end);
644 static int check_recording_time(OutputStream *ost)
646 OutputFile *of = output_files[ost->file_index];
648 if (of->recording_time != INT64_MAX &&
649 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
650 AV_TIME_BASE_Q) >= 0) {
651 close_output_stream(ost);
657 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
660 AVCodecContext *enc = ost->st->codec;
664 av_init_packet(&pkt);
668 if (!check_recording_time(ost))
671 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
672 frame->pts = ost->sync_opts;
673 ost->sync_opts = frame->pts + frame->nb_samples;
675 av_assert0(pkt.size || !pkt.data);
676 update_benchmark(NULL);
677 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
678 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
681 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
684 if (pkt.pts != AV_NOPTS_VALUE)
685 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
686 if (pkt.dts != AV_NOPTS_VALUE)
687 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
688 if (pkt.duration > 0)
689 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
692 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
693 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
694 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
695 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
698 audio_size += pkt.size;
699 write_frame(s, &pkt, ost);
701 av_free_packet(&pkt);
705 static void do_subtitle_out(AVFormatContext *s,
710 int subtitle_out_max_size = 1024 * 1024;
711 int subtitle_out_size, nb, i;
716 if (sub->pts == AV_NOPTS_VALUE) {
717 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
723 enc = ost->st->codec;
726 subtitle_out = av_malloc(subtitle_out_max_size);
729 /* Note: DVB subtitle need one packet to draw them and one other
730 packet to clear them */
731 /* XXX: signal it in the codec context ? */
732 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
737 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
738 pts = sub->pts - output_files[ost->file_index]->start_time;
739 for (i = 0; i < nb; i++) {
740 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
741 if (!check_recording_time(ost))
745 // start_display_time is required to be 0
746 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
747 sub->end_display_time -= sub->start_display_time;
748 sub->start_display_time = 0;
751 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
752 subtitle_out_max_size, sub);
753 if (subtitle_out_size < 0) {
754 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
758 av_init_packet(&pkt);
759 pkt.data = subtitle_out;
760 pkt.size = subtitle_out_size;
761 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
762 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
763 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
764 /* XXX: the pts correction is handled here. Maybe handling
765 it in the codec would be better */
767 pkt.pts += 90 * sub->start_display_time;
769 pkt.pts += 90 * sub->end_display_time;
771 subtitle_size += pkt.size;
772 write_frame(s, &pkt, ost);
776 static void do_video_out(AVFormatContext *s,
780 int ret, format_video_sync;
782 AVCodecContext *enc = ost->st->codec;
784 double sync_ipts, delta;
787 InputStream *ist = NULL;
789 if (ost->source_index >= 0)
790 ist = input_streams[ost->source_index];
792 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
793 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
795 sync_ipts = in_picture->pts;
796 delta = sync_ipts - ost->sync_opts + duration;
798 /* by default, we output a single frame */
801 format_video_sync = video_sync_method;
802 if (format_video_sync == VSYNC_AUTO)
803 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
805 switch (format_video_sync) {
807 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
810 else if (delta > 1.1)
811 nb_frames = lrintf(delta);
816 else if (delta > 0.6)
817 ost->sync_opts = lrint(sync_ipts);
820 case VSYNC_PASSTHROUGH:
821 ost->sync_opts = lrint(sync_ipts);
827 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
828 if (nb_frames == 0) {
830 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
832 } else if (nb_frames > 1) {
833 if (nb_frames > dts_error_threshold * 30) {
834 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
838 nb_frames_dup += nb_frames - 1;
839 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
842 /* duplicates frame if needed */
843 for (i = 0; i < nb_frames; i++) {
844 av_init_packet(&pkt);
848 in_picture->pts = ost->sync_opts;
850 if (!check_recording_time(ost))
853 if (s->oformat->flags & AVFMT_RAWPICTURE &&
854 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
855 /* raw pictures are written as AVPicture structure to
856 avoid any copies. We support temporarily the older
858 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
859 enc->coded_frame->top_field_first = in_picture->top_field_first;
860 if (enc->coded_frame->interlaced_frame)
861 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
863 enc->field_order = AV_FIELD_PROGRESSIVE;
864 pkt.data = (uint8_t *)in_picture;
865 pkt.size = sizeof(AVPicture);
866 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
867 pkt.flags |= AV_PKT_FLAG_KEY;
869 video_size += pkt.size;
870 write_frame(s, &pkt, ost);
872 int got_packet, forced_keyframe = 0;
875 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
876 ost->top_field_first >= 0)
877 in_picture->top_field_first = !!ost->top_field_first;
879 if (in_picture->interlaced_frame) {
880 if (enc->codec->id == AV_CODEC_ID_MJPEG)
881 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
883 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
885 enc->field_order = AV_FIELD_PROGRESSIVE;
887 in_picture->quality = ost->st->codec->global_quality;
888 if (!enc->me_threshold)
889 in_picture->pict_type = 0;
891 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
892 in_picture->pts * av_q2d(enc->time_base) : NAN;
893 if (ost->forced_kf_index < ost->forced_kf_count &&
894 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
895 ost->forced_kf_index++;
897 } else if (ost->forced_keyframes_pexpr) {
899 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
900 res = av_expr_eval(ost->forced_keyframes_pexpr,
901 ost->forced_keyframes_expr_const_values, NULL);
902 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
903 ost->forced_keyframes_expr_const_values[FKF_N],
904 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
905 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
906 ost->forced_keyframes_expr_const_values[FKF_T],
907 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
911 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
912 ost->forced_keyframes_expr_const_values[FKF_N];
913 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
914 ost->forced_keyframes_expr_const_values[FKF_T];
915 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
918 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
920 if (forced_keyframe) {
921 in_picture->pict_type = AV_PICTURE_TYPE_I;
922 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
925 update_benchmark(NULL);
926 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
927 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
929 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
934 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
935 pkt.pts = ost->sync_opts;
937 if (pkt.pts != AV_NOPTS_VALUE)
938 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
939 if (pkt.dts != AV_NOPTS_VALUE)
940 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
943 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
944 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
945 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
946 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
949 frame_size = pkt.size;
950 video_size += pkt.size;
951 write_frame(s, &pkt, ost);
952 av_free_packet(&pkt);
954 /* if two pass, output log */
955 if (ost->logfile && enc->stats_out) {
956 fprintf(ost->logfile, "%s", enc->stats_out);
962 * For video, number of frames in == number of packets out.
963 * But there may be reordering, so we can't throw away frames on encoder
964 * flush, we need to limit them here, before they go into encoder.
968 if (vstats_filename && frame_size)
969 do_video_stats(ost, frame_size);
973 static double psnr(double d)
975 return -10.0 * log(d) / log(10.0);
978 static void do_video_stats(OutputStream *ost, int frame_size)
982 double ti1, bitrate, avg_bitrate;
984 /* this is executed just the first time do_video_stats is called */
986 vstats_file = fopen(vstats_filename, "w");
993 enc = ost->st->codec;
994 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
995 frame_number = ost->st->nb_frames;
996 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
997 if (enc->flags&CODEC_FLAG_PSNR)
998 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1000 fprintf(vstats_file,"f_size= %6d ", frame_size);
1001 /* compute pts value */
1002 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1006 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1007 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1008 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1009 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1010 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1015 * Get and encode new output from any of the filtergraphs, without causing
1018 * @return 0 for success, <0 for severe errors
1020 static int reap_filters(void)
1022 AVFrame *filtered_frame = NULL;
1026 /* Reap all buffers present in the buffer sinks */
1027 for (i = 0; i < nb_output_streams; i++) {
1028 OutputStream *ost = output_streams[i];
1029 OutputFile *of = output_files[ost->file_index];
1035 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1036 return AVERROR(ENOMEM);
1038 avcodec_get_frame_defaults(ost->filtered_frame);
1039 filtered_frame = ost->filtered_frame;
1042 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1043 AV_BUFFERSINK_FLAG_NO_REQUEST);
1045 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1047 av_strerror(ret, buf, sizeof(buf));
1048 av_log(NULL, AV_LOG_WARNING,
1049 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1053 frame_pts = AV_NOPTS_VALUE;
1054 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1055 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1056 ost->filter->filter->inputs[0]->time_base,
1057 ost->st->codec->time_base) -
1058 av_rescale_q(of->start_time,
1060 ost->st->codec->time_base);
1062 if (of->start_time && filtered_frame->pts < 0) {
1063 av_frame_unref(filtered_frame);
1067 //if (ost->source_index >= 0)
1068 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1071 switch (ost->filter->filter->inputs[0]->type) {
1072 case AVMEDIA_TYPE_VIDEO:
1073 filtered_frame->pts = frame_pts;
1074 if (!ost->frame_aspect_ratio)
1075 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1077 do_video_out(of->ctx, ost, filtered_frame);
1079 case AVMEDIA_TYPE_AUDIO:
1080 filtered_frame->pts = frame_pts;
1081 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1082 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1083 av_log(NULL, AV_LOG_ERROR,
1084 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1087 do_audio_out(of->ctx, ost, filtered_frame);
1090 // TODO support subtitle filters
1094 av_frame_unref(filtered_frame);
1101 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1104 AVBPrint buf_script;
1106 AVFormatContext *oc;
1108 AVCodecContext *enc;
1109 int frame_number, vid, i;
1111 int64_t pts = INT64_MIN;
1112 static int64_t last_time = -1;
1113 static int qp_histogram[52];
1114 int hours, mins, secs, us;
1116 if (!print_stats && !is_last_report && !progress_avio)
1119 if (!is_last_report) {
1120 if (last_time == -1) {
1121 last_time = cur_time;
1124 if ((cur_time - last_time) < 500000)
1126 last_time = cur_time;
1130 oc = output_files[0]->ctx;
1132 total_size = avio_size(oc->pb);
1133 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1134 total_size = avio_tell(oc->pb);
1138 av_bprint_init(&buf_script, 0, 1);
1139 for (i = 0; i < nb_output_streams; i++) {
1141 ost = output_streams[i];
1142 enc = ost->st->codec;
1143 if (!ost->stream_copy && enc->coded_frame)
1144 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1145 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1146 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1147 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1148 ost->file_index, ost->index, q);
1150 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1151 float fps, t = (cur_time-timer_start) / 1000000.0;
1153 frame_number = ost->frame_number;
1154 fps = t > 1 ? frame_number / t : 0;
1155 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1156 frame_number, fps < 9.95, fps, q);
1157 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1158 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1159 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1160 ost->file_index, ost->index, q);
1162 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1166 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1168 for (j = 0; j < 32; j++)
1169 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1171 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1173 double error, error_sum = 0;
1174 double scale, scale_sum = 0;
1176 char type[3] = { 'Y','U','V' };
1177 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1178 for (j = 0; j < 3; j++) {
1179 if (is_last_report) {
1180 error = enc->error[j];
1181 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1183 error = enc->coded_frame->error[j];
1184 scale = enc->width * enc->height * 255.0 * 255.0;
1190 p = psnr(error / scale);
1191 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1192 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1193 ost->file_index, ost->index, type[j] | 32, p);
1195 p = psnr(error_sum / scale_sum);
1196 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1197 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1198 ost->file_index, ost->index, p);
1202 /* compute min output value */
1203 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1204 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1205 ost->st->time_base, AV_TIME_BASE_Q));
1208 secs = pts / AV_TIME_BASE;
1209 us = pts % AV_TIME_BASE;
1215 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1217 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1219 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1220 "size=%8.0fkB time=", total_size / 1024.0);
1221 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1222 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1223 (100 * us) / AV_TIME_BASE);
1224 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1226 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1227 "bitrate=%6.1fkbits/s", bitrate);
1228 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1229 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1230 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1231 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1232 hours, mins, secs, us);
1234 if (nb_frames_dup || nb_frames_drop)
1235 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1236 nb_frames_dup, nb_frames_drop);
1237 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1238 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1240 if (print_stats || is_last_report) {
1241 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1242 fprintf(stderr, "%s \r", buf);
1244 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1249 if (progress_avio) {
1250 av_bprintf(&buf_script, "progress=%s\n",
1251 is_last_report ? "end" : "continue");
1252 avio_write(progress_avio, buf_script.str,
1253 FFMIN(buf_script.len, buf_script.size - 1));
1254 avio_flush(progress_avio);
1255 av_bprint_finalize(&buf_script, NULL);
1256 if (is_last_report) {
1257 avio_close(progress_avio);
1258 progress_avio = NULL;
1262 if (is_last_report) {
1263 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1264 av_log(NULL, AV_LOG_INFO, "\n");
1265 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1266 video_size / 1024.0,
1267 audio_size / 1024.0,
1268 subtitle_size / 1024.0,
1269 extra_size / 1024.0,
1270 100.0 * (total_size - raw) / raw
1272 if(video_size + audio_size + subtitle_size + extra_size == 0){
1273 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1278 static void flush_encoders(void)
1282 for (i = 0; i < nb_output_streams; i++) {
1283 OutputStream *ost = output_streams[i];
1284 AVCodecContext *enc = ost->st->codec;
1285 AVFormatContext *os = output_files[ost->file_index]->ctx;
1286 int stop_encoding = 0;
1288 if (!ost->encoding_needed)
1291 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1293 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1297 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1301 switch (ost->st->codec->codec_type) {
1302 case AVMEDIA_TYPE_AUDIO:
1303 encode = avcodec_encode_audio2;
1307 case AVMEDIA_TYPE_VIDEO:
1308 encode = avcodec_encode_video2;
1319 av_init_packet(&pkt);
1323 update_benchmark(NULL);
1324 ret = encode(enc, &pkt, NULL, &got_packet);
1325 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1327 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1331 if (ost->logfile && enc->stats_out) {
1332 fprintf(ost->logfile, "%s", enc->stats_out);
1338 if (pkt.pts != AV_NOPTS_VALUE)
1339 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1340 if (pkt.dts != AV_NOPTS_VALUE)
1341 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1342 if (pkt.duration > 0)
1343 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1344 write_frame(os, &pkt, ost);
1345 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1346 do_video_stats(ost, pkt.size);
1357 * Check whether a packet from ist should be written into ost at this time
1359 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1361 OutputFile *of = output_files[ost->file_index];
1362 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1364 if (ost->source_index != ist_index)
1367 if (of->start_time && ist->pts < of->start_time)
1373 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1375 OutputFile *of = output_files[ost->file_index];
1376 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1380 av_init_packet(&opkt);
1382 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1383 !ost->copy_initial_nonkeyframes)
1386 if (!ost->frame_number && ist->pts < of->start_time &&
1387 !ost->copy_prior_start)
1390 if (of->recording_time != INT64_MAX &&
1391 ist->pts >= of->recording_time + of->start_time) {
1392 close_output_stream(ost);
1396 /* force the input stream PTS */
1397 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1398 audio_size += pkt->size;
1399 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1400 video_size += pkt->size;
1402 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1403 subtitle_size += pkt->size;
1406 if (pkt->pts != AV_NOPTS_VALUE)
1407 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1409 opkt.pts = AV_NOPTS_VALUE;
1411 if (pkt->dts == AV_NOPTS_VALUE)
1412 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1414 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1415 opkt.dts -= ost_tb_start_time;
1417 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1418 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1420 duration = ist->st->codec->frame_size;
1421 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1422 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1423 ost->st->time_base) - ost_tb_start_time;
1426 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1427 opkt.flags = pkt->flags;
1429 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1430 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1431 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1432 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1433 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1435 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1436 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1441 opkt.data = pkt->data;
1442 opkt.size = pkt->size;
1445 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1446 /* store AVPicture in AVPacket, as expected by the output format */
1447 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1448 opkt.data = (uint8_t *)&pict;
1449 opkt.size = sizeof(AVPicture);
1450 opkt.flags |= AV_PKT_FLAG_KEY;
1453 write_frame(of->ctx, &opkt, ost);
1454 ost->st->codec->frame_number++;
1457 static void rate_emu_sleep(InputStream *ist)
1459 if (input_files[ist->file_index]->rate_emu) {
1460 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1461 int64_t now = av_gettime() - ist->start;
1463 av_usleep(pts - now);
1467 int guess_input_channel_layout(InputStream *ist)
1469 AVCodecContext *dec = ist->st->codec;
1471 if (!dec->channel_layout) {
1472 char layout_name[256];
1474 if (dec->channels > ist->guess_layout_max)
1476 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1477 if (!dec->channel_layout)
1479 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1480 dec->channels, dec->channel_layout);
1481 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1482 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1487 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1489 AVFrame *decoded_frame, *f;
1490 AVCodecContext *avctx = ist->st->codec;
1491 int i, ret, err = 0, resample_changed;
1492 AVRational decoded_frame_tb;
1494 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1495 return AVERROR(ENOMEM);
1496 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1497 return AVERROR(ENOMEM);
1498 decoded_frame = ist->decoded_frame;
1500 update_benchmark(NULL);
1501 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1502 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1504 if (ret >= 0 && avctx->sample_rate <= 0) {
1505 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1506 ret = AVERROR_INVALIDDATA;
1509 if (!*got_output || ret < 0) {
1511 for (i = 0; i < ist->nb_filters; i++)
1513 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1515 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1522 /* increment next_dts to use for the case where the input stream does not
1523 have timestamps or there are multiple frames in the packet */
1524 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1526 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1530 rate_emu_sleep(ist);
1532 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1533 ist->resample_channels != avctx->channels ||
1534 ist->resample_channel_layout != decoded_frame->channel_layout ||
1535 ist->resample_sample_rate != decoded_frame->sample_rate;
1536 if (resample_changed) {
1537 char layout1[64], layout2[64];
1539 if (!guess_input_channel_layout(ist)) {
1540 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1541 "layout for Input Stream #%d.%d\n", ist->file_index,
1545 decoded_frame->channel_layout = avctx->channel_layout;
1547 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1548 ist->resample_channel_layout);
1549 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1550 decoded_frame->channel_layout);
1552 av_log(NULL, AV_LOG_INFO,
1553 "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",
1554 ist->file_index, ist->st->index,
1555 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1556 ist->resample_channels, layout1,
1557 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1558 avctx->channels, layout2);
1560 ist->resample_sample_fmt = decoded_frame->format;
1561 ist->resample_sample_rate = decoded_frame->sample_rate;
1562 ist->resample_channel_layout = decoded_frame->channel_layout;
1563 ist->resample_channels = avctx->channels;
1565 for (i = 0; i < nb_filtergraphs; i++)
1566 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1567 FilterGraph *fg = filtergraphs[i];
1569 if (configure_filtergraph(fg) < 0) {
1570 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1573 for (j = 0; j < fg->nb_outputs; j++) {
1574 OutputStream *ost = fg->outputs[j]->ost;
1575 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1576 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1577 av_buffersink_set_frame_size(ost->filter->filter,
1578 ost->st->codec->frame_size);
1583 /* if the decoder provides a pts, use it instead of the last packet pts.
1584 the decoder could be delaying output by a packet or more. */
1585 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1586 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1587 decoded_frame_tb = avctx->time_base;
1588 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1589 decoded_frame->pts = decoded_frame->pkt_pts;
1590 pkt->pts = AV_NOPTS_VALUE;
1591 decoded_frame_tb = ist->st->time_base;
1592 } else if (pkt->pts != AV_NOPTS_VALUE) {
1593 decoded_frame->pts = pkt->pts;
1594 pkt->pts = AV_NOPTS_VALUE;
1595 decoded_frame_tb = ist->st->time_base;
1597 decoded_frame->pts = ist->dts;
1598 decoded_frame_tb = AV_TIME_BASE_Q;
1600 if (decoded_frame->pts != AV_NOPTS_VALUE)
1601 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1602 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1603 (AVRational){1, ist->st->codec->sample_rate});
1604 for (i = 0; i < ist->nb_filters; i++) {
1605 if (i < ist->nb_filters - 1) {
1606 f = ist->filter_frame;
1607 err = av_frame_ref(f, decoded_frame);
1612 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1613 AV_BUFFERSRC_FLAG_PUSH);
1617 decoded_frame->pts = AV_NOPTS_VALUE;
1619 av_frame_unref(ist->filter_frame);
1620 av_frame_unref(decoded_frame);
1621 return err < 0 ? err : ret;
1624 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1626 AVFrame *decoded_frame, *f;
1627 void *buffer_to_free = NULL;
1628 int i, ret = 0, err = 0, resample_changed;
1629 int64_t best_effort_timestamp;
1630 AVRational *frame_sample_aspect;
1632 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1633 return AVERROR(ENOMEM);
1634 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
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++)
1647 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1649 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1655 if(ist->top_field_first>=0)
1656 decoded_frame->top_field_first = ist->top_field_first;
1658 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1659 if(best_effort_timestamp != AV_NOPTS_VALUE)
1660 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1663 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1664 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1665 ist->st->index, av_ts2str(decoded_frame->pts),
1666 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1667 best_effort_timestamp,
1668 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1669 decoded_frame->key_frame, decoded_frame->pict_type);
1674 rate_emu_sleep(ist);
1676 if (ist->st->sample_aspect_ratio.num)
1677 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1679 resample_changed = ist->resample_width != decoded_frame->width ||
1680 ist->resample_height != decoded_frame->height ||
1681 ist->resample_pix_fmt != decoded_frame->format;
1682 if (resample_changed) {
1683 av_log(NULL, AV_LOG_INFO,
1684 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1685 ist->file_index, ist->st->index,
1686 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1687 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1689 ist->resample_width = decoded_frame->width;
1690 ist->resample_height = decoded_frame->height;
1691 ist->resample_pix_fmt = decoded_frame->format;
1693 for (i = 0; i < nb_filtergraphs; i++) {
1694 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1695 configure_filtergraph(filtergraphs[i]) < 0) {
1696 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1702 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1703 for (i = 0; i < ist->nb_filters; i++) {
1704 if (!frame_sample_aspect->num)
1705 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1707 if (i < ist->nb_filters - 1) {
1708 f = ist->filter_frame;
1709 err = av_frame_ref(f, decoded_frame);
1714 if(av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1715 AV_BUFFERSRC_FLAG_PUSH)<0) {
1716 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1722 av_frame_unref(ist->filter_frame);
1723 av_frame_unref(decoded_frame);
1724 av_free(buffer_to_free);
1725 return err < 0 ? err : ret;
1728 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1730 AVSubtitle subtitle;
1731 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1732 &subtitle, got_output, pkt);
1733 if (ret < 0 || !*got_output) {
1735 sub2video_flush(ist);
1739 if (ist->fix_sub_duration) {
1740 if (ist->prev_sub.got_output) {
1741 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1742 1000, AV_TIME_BASE);
1743 if (end < ist->prev_sub.subtitle.end_display_time) {
1744 av_log(ist->st->codec, AV_LOG_DEBUG,
1745 "Subtitle duration reduced from %d to %d\n",
1746 ist->prev_sub.subtitle.end_display_time, end);
1747 ist->prev_sub.subtitle.end_display_time = end;
1750 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1751 FFSWAP(int, ret, ist->prev_sub.ret);
1752 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1755 sub2video_update(ist, &subtitle);
1757 if (!*got_output || !subtitle.num_rects)
1760 rate_emu_sleep(ist);
1762 for (i = 0; i < nb_output_streams; i++) {
1763 OutputStream *ost = output_streams[i];
1765 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1768 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1771 avsubtitle_free(&subtitle);
1775 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1776 static int output_packet(InputStream *ist, const AVPacket *pkt)
1782 if (!ist->saw_first_ts) {
1783 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;
1785 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1786 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1787 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1789 ist->saw_first_ts = 1;
1792 if (ist->next_dts == AV_NOPTS_VALUE)
1793 ist->next_dts = ist->dts;
1794 if (ist->next_pts == AV_NOPTS_VALUE)
1795 ist->next_pts = ist->pts;
1799 av_init_packet(&avpkt);
1807 if (pkt->dts != AV_NOPTS_VALUE) {
1808 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1809 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1810 ist->next_pts = ist->pts = ist->dts;
1813 // while we have more to decode or while the decoder did output something on EOF
1814 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1818 ist->pts = ist->next_pts;
1819 ist->dts = ist->next_dts;
1821 if (avpkt.size && avpkt.size != pkt->size) {
1822 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1823 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1824 ist->showed_multi_packet_warning = 1;
1827 switch (ist->st->codec->codec_type) {
1828 case AVMEDIA_TYPE_AUDIO:
1829 ret = decode_audio (ist, &avpkt, &got_output);
1831 case AVMEDIA_TYPE_VIDEO:
1832 ret = decode_video (ist, &avpkt, &got_output);
1833 if (avpkt.duration) {
1834 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1835 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1836 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1837 duration = ((int64_t)AV_TIME_BASE *
1838 ist->st->codec->time_base.num * ticks) /
1839 ist->st->codec->time_base.den;
1843 if(ist->dts != AV_NOPTS_VALUE && duration) {
1844 ist->next_dts += duration;
1846 ist->next_dts = AV_NOPTS_VALUE;
1849 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1851 case AVMEDIA_TYPE_SUBTITLE:
1852 ret = transcode_subtitles(ist, &avpkt, &got_output);
1862 avpkt.pts= AV_NOPTS_VALUE;
1864 // touch data and size only if not EOF
1866 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1876 /* handle stream copy */
1877 if (!ist->decoding_needed) {
1878 rate_emu_sleep(ist);
1879 ist->dts = ist->next_dts;
1880 switch (ist->st->codec->codec_type) {
1881 case AVMEDIA_TYPE_AUDIO:
1882 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1883 ist->st->codec->sample_rate;
1885 case AVMEDIA_TYPE_VIDEO:
1886 if (ist->framerate.num) {
1887 // TODO: Remove work-around for c99-to-c89 issue 7
1888 AVRational time_base_q = AV_TIME_BASE_Q;
1889 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1890 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1891 } else if (pkt->duration) {
1892 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1893 } else if(ist->st->codec->time_base.num != 0) {
1894 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1895 ist->next_dts += ((int64_t)AV_TIME_BASE *
1896 ist->st->codec->time_base.num * ticks) /
1897 ist->st->codec->time_base.den;
1901 ist->pts = ist->dts;
1902 ist->next_pts = ist->next_dts;
1904 for (i = 0; pkt && i < nb_output_streams; i++) {
1905 OutputStream *ost = output_streams[i];
1907 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1910 do_streamcopy(ist, ost, pkt);
1916 static void print_sdp(void)
1920 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1924 for (i = 0; i < nb_output_files; i++)
1925 avc[i] = output_files[i]->ctx;
1927 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1928 printf("SDP:\n%s\n", sdp);
1933 static int init_input_stream(int ist_index, char *error, int error_len)
1936 InputStream *ist = input_streams[ist_index];
1938 if (ist->decoding_needed) {
1939 AVCodec *codec = ist->dec;
1941 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1942 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1943 return AVERROR(EINVAL);
1946 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1948 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1949 av_dict_set(&ist->opts, "threads", "auto", 0);
1950 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1951 if (ret == AVERROR_EXPERIMENTAL)
1952 abort_codec_experimental(codec, 0);
1953 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1954 ist->file_index, ist->st->index);
1957 assert_avoptions(ist->opts);
1960 ist->next_pts = AV_NOPTS_VALUE;
1961 ist->next_dts = AV_NOPTS_VALUE;
1967 static InputStream *get_input_stream(OutputStream *ost)
1969 if (ost->source_index >= 0)
1970 return input_streams[ost->source_index];
1974 static int compare_int64(const void *a, const void *b)
1976 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
1977 return va < vb ? -1 : va > vb ? +1 : 0;
1980 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1981 AVCodecContext *avctx)
1984 int n = 1, i, size, index = 0;
1987 for (p = kf; *p; p++)
1991 pts = av_malloc(sizeof(*pts) * size);
1993 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1998 for (i = 0; i < n; i++) {
1999 char *next = strchr(p, ',');
2004 if (!memcmp(p, "chapters", 8)) {
2006 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2009 if (avf->nb_chapters > INT_MAX - size ||
2010 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2012 av_log(NULL, AV_LOG_FATAL,
2013 "Could not allocate forced key frames array.\n");
2016 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2017 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2019 for (j = 0; j < avf->nb_chapters; j++) {
2020 AVChapter *c = avf->chapters[j];
2021 av_assert1(index < size);
2022 pts[index++] = av_rescale_q(c->start, c->time_base,
2023 avctx->time_base) + t;
2028 t = parse_time_or_die("force_key_frames", p, 1);
2029 av_assert1(index < size);
2030 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2037 av_assert0(index == size);
2038 qsort(pts, size, sizeof(*pts), compare_int64);
2039 ost->forced_kf_count = size;
2040 ost->forced_kf_pts = pts;
2043 static void report_new_stream(int input_index, AVPacket *pkt)
2045 InputFile *file = input_files[input_index];
2046 AVStream *st = file->ctx->streams[pkt->stream_index];
2048 if (pkt->stream_index < file->nb_streams_warn)
2050 av_log(file->ctx, AV_LOG_WARNING,
2051 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2052 av_get_media_type_string(st->codec->codec_type),
2053 input_index, pkt->stream_index,
2054 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2055 file->nb_streams_warn = pkt->stream_index + 1;
2058 static int transcode_init(void)
2060 int ret = 0, i, j, k;
2061 AVFormatContext *oc;
2062 AVCodecContext *codec;
2068 /* init framerate emulation */
2069 for (i = 0; i < nb_input_files; i++) {
2070 InputFile *ifile = input_files[i];
2071 if (ifile->rate_emu)
2072 for (j = 0; j < ifile->nb_streams; j++)
2073 input_streams[j + ifile->ist_index]->start = av_gettime();
2076 /* output stream init */
2077 for (i = 0; i < nb_output_files; i++) {
2078 oc = output_files[i]->ctx;
2079 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2080 av_dump_format(oc, i, oc->filename, 1);
2081 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2082 return AVERROR(EINVAL);
2086 /* init complex filtergraphs */
2087 for (i = 0; i < nb_filtergraphs; i++)
2088 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2091 /* for each output stream, we compute the right encoding parameters */
2092 for (i = 0; i < nb_output_streams; i++) {
2093 AVCodecContext *icodec = NULL;
2094 ost = output_streams[i];
2095 oc = output_files[ost->file_index]->ctx;
2096 ist = get_input_stream(ost);
2098 if (ost->attachment_filename)
2101 codec = ost->st->codec;
2104 icodec = ist->st->codec;
2106 ost->st->disposition = ist->st->disposition;
2107 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2108 codec->chroma_sample_location = icodec->chroma_sample_location;
2111 if (ost->stream_copy) {
2112 uint64_t extra_size;
2114 av_assert0(ist && !ost->filter);
2116 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2118 if (extra_size > INT_MAX) {
2119 return AVERROR(EINVAL);
2122 /* if stream_copy is selected, no need to decode or encode */
2123 codec->codec_id = icodec->codec_id;
2124 codec->codec_type = icodec->codec_type;
2126 if (!codec->codec_tag) {
2127 unsigned int codec_tag;
2128 if (!oc->oformat->codec_tag ||
2129 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2130 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2131 codec->codec_tag = icodec->codec_tag;
2134 codec->bit_rate = icodec->bit_rate;
2135 codec->rc_max_rate = icodec->rc_max_rate;
2136 codec->rc_buffer_size = icodec->rc_buffer_size;
2137 codec->field_order = icodec->field_order;
2138 codec->extradata = av_mallocz(extra_size);
2139 if (!codec->extradata) {
2140 return AVERROR(ENOMEM);
2142 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2143 codec->extradata_size= icodec->extradata_size;
2144 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2146 codec->time_base = ist->st->time_base;
2148 * Avi is a special case here because it supports variable fps but
2149 * having the fps and timebase differe significantly adds quite some
2152 if(!strcmp(oc->oformat->name, "avi")) {
2153 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2154 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2155 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2156 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2158 codec->time_base.num = ist->st->r_frame_rate.den;
2159 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2160 codec->ticks_per_frame = 2;
2161 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2162 && av_q2d(ist->st->time_base) < 1.0/500
2164 codec->time_base = icodec->time_base;
2165 codec->time_base.num *= icodec->ticks_per_frame;
2166 codec->time_base.den *= 2;
2167 codec->ticks_per_frame = 2;
2169 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2170 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2171 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2172 && strcmp(oc->oformat->name, "f4v")
2174 if( copy_tb<0 && icodec->time_base.den
2175 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2176 && av_q2d(ist->st->time_base) < 1.0/500
2178 codec->time_base = icodec->time_base;
2179 codec->time_base.num *= icodec->ticks_per_frame;
2182 if ( codec->codec_tag == AV_RL32("tmcd")
2183 && icodec->time_base.num < icodec->time_base.den
2184 && icodec->time_base.num > 0
2185 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2186 codec->time_base = icodec->time_base;
2189 if (ist && !ost->frame_rate.num)
2190 ost->frame_rate = ist->framerate;
2191 if(ost->frame_rate.num)
2192 codec->time_base = av_inv_q(ost->frame_rate);
2194 av_reduce(&codec->time_base.num, &codec->time_base.den,
2195 codec->time_base.num, codec->time_base.den, INT_MAX);
2197 switch (codec->codec_type) {
2198 case AVMEDIA_TYPE_AUDIO:
2199 if (audio_volume != 256) {
2200 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2203 codec->channel_layout = icodec->channel_layout;
2204 codec->sample_rate = icodec->sample_rate;
2205 codec->channels = icodec->channels;
2206 codec->frame_size = icodec->frame_size;
2207 codec->audio_service_type = icodec->audio_service_type;
2208 codec->block_align = icodec->block_align;
2209 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2210 codec->block_align= 0;
2211 if(codec->codec_id == AV_CODEC_ID_AC3)
2212 codec->block_align= 0;
2214 case AVMEDIA_TYPE_VIDEO:
2215 codec->pix_fmt = icodec->pix_fmt;
2216 codec->width = icodec->width;
2217 codec->height = icodec->height;
2218 codec->has_b_frames = icodec->has_b_frames;
2219 if (!codec->sample_aspect_ratio.num) {
2220 codec->sample_aspect_ratio =
2221 ost->st->sample_aspect_ratio =
2222 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2223 ist->st->codec->sample_aspect_ratio.num ?
2224 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2226 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2228 case AVMEDIA_TYPE_SUBTITLE:
2229 codec->width = icodec->width;
2230 codec->height = icodec->height;
2232 case AVMEDIA_TYPE_DATA:
2233 case AVMEDIA_TYPE_ATTACHMENT:
2240 ost->enc = avcodec_find_encoder(codec->codec_id);
2242 /* should only happen when a default codec is not present. */
2243 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2244 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2245 ret = AVERROR(EINVAL);
2250 ist->decoding_needed++;
2251 ost->encoding_needed = 1;
2254 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2255 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2257 fg = init_simple_filtergraph(ist, ost);
2258 if (configure_filtergraph(fg)) {
2259 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2264 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2265 if (ost->filter && !ost->frame_rate.num)
2266 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2267 if (ist && !ost->frame_rate.num)
2268 ost->frame_rate = ist->framerate;
2269 if (ist && !ost->frame_rate.num)
2270 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2271 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2272 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2273 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2274 ost->frame_rate = ost->enc->supported_framerates[idx];
2278 switch (codec->codec_type) {
2279 case AVMEDIA_TYPE_AUDIO:
2280 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2281 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2282 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2283 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2284 codec->time_base = (AVRational){ 1, codec->sample_rate };
2286 case AVMEDIA_TYPE_VIDEO:
2287 codec->time_base = av_inv_q(ost->frame_rate);
2288 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2289 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2290 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2291 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2292 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2293 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2295 for (j = 0; j < ost->forced_kf_count; j++)
2296 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2300 codec->width = ost->filter->filter->inputs[0]->w;
2301 codec->height = ost->filter->filter->inputs[0]->h;
2302 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2303 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2304 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2305 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2306 if (!strncmp(ost->enc->name, "libx264", 7) &&
2307 codec->pix_fmt == AV_PIX_FMT_NONE &&
2308 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2309 av_log(NULL, AV_LOG_INFO,
2310 "No pixel format specified, %s for H.264 encoding chosen.\n"
2311 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2312 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
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) {
2435 for (i = 0; i < nb_output_streams; i++) {
2436 ost = output_streams[i];
2437 avcodec_close(ost->st->codec);
2442 /* discard unused programs */
2443 for (i = 0; i < nb_input_files; i++) {
2444 InputFile *ifile = input_files[i];
2445 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2446 AVProgram *p = ifile->ctx->programs[j];
2447 int discard = AVDISCARD_ALL;
2449 for (k = 0; k < p->nb_stream_indexes; k++)
2450 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2451 discard = AVDISCARD_DEFAULT;
2454 p->discard = discard;
2458 /* open files and write file headers */
2459 for (i = 0; i < nb_output_files; i++) {
2460 oc = output_files[i]->ctx;
2461 oc->interrupt_callback = int_cb;
2462 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2464 const char *errbuf_ptr = errbuf;
2465 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2466 errbuf_ptr = strerror(AVUNERROR(ret));
2467 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2468 ret = AVERROR(EINVAL);
2471 // assert_avoptions(output_files[i]->opts);
2472 if (strcmp(oc->oformat->name, "rtp")) {
2478 /* dump the file output parameters - cannot be done before in case
2480 for (i = 0; i < nb_output_files; i++) {
2481 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2484 /* dump the stream mapping */
2485 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2486 for (i = 0; i < nb_input_streams; i++) {
2487 ist = input_streams[i];
2489 for (j = 0; j < ist->nb_filters; j++) {
2490 if (ist->filters[j]->graph->graph_desc) {
2491 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2492 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2493 ist->filters[j]->name);
2494 if (nb_filtergraphs > 1)
2495 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2496 av_log(NULL, AV_LOG_INFO, "\n");
2501 for (i = 0; i < nb_output_streams; i++) {
2502 ost = output_streams[i];
2504 if (ost->attachment_filename) {
2505 /* an attached file */
2506 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2507 ost->attachment_filename, ost->file_index, ost->index);
2511 if (ost->filter && ost->filter->graph->graph_desc) {
2512 /* output from a complex graph */
2513 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2514 if (nb_filtergraphs > 1)
2515 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2517 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2518 ost->index, ost->enc ? ost->enc->name : "?");
2522 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2523 input_streams[ost->source_index]->file_index,
2524 input_streams[ost->source_index]->st->index,
2527 if (ost->sync_ist != input_streams[ost->source_index])
2528 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2529 ost->sync_ist->file_index,
2530 ost->sync_ist->st->index);
2531 if (ost->stream_copy)
2532 av_log(NULL, AV_LOG_INFO, " (copy)");
2534 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2535 input_streams[ost->source_index]->dec->name : "?",
2536 ost->enc ? ost->enc->name : "?");
2537 av_log(NULL, AV_LOG_INFO, "\n");
2541 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2552 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2553 static int need_output(void)
2557 for (i = 0; i < nb_output_streams; i++) {
2558 OutputStream *ost = output_streams[i];
2559 OutputFile *of = output_files[ost->file_index];
2560 AVFormatContext *os = output_files[ost->file_index]->ctx;
2562 if (ost->finished ||
2563 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2565 if (ost->frame_number >= ost->max_frames) {
2567 for (j = 0; j < of->ctx->nb_streams; j++)
2568 close_output_stream(output_streams[of->ost_index + j]);
2579 * Select the output stream to process.
2581 * @return selected output stream, or NULL if none available
2583 static OutputStream *choose_output(void)
2586 int64_t opts_min = INT64_MAX;
2587 OutputStream *ost_min = NULL;
2589 for (i = 0; i < nb_output_streams; i++) {
2590 OutputStream *ost = output_streams[i];
2591 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2593 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2601 static int check_keyboard_interaction(int64_t cur_time)
2604 static int64_t last_time;
2605 if (received_nb_signals)
2606 return AVERROR_EXIT;
2607 /* read_key() returns 0 on EOF */
2608 if(cur_time - last_time >= 100000 && !run_as_daemon){
2610 last_time = cur_time;
2614 return AVERROR_EXIT;
2615 if (key == '+') av_log_set_level(av_log_get_level()+10);
2616 if (key == '-') av_log_set_level(av_log_get_level()-10);
2617 if (key == 's') qp_hist ^= 1;
2620 do_hex_dump = do_pkt_dump = 0;
2621 } else if(do_pkt_dump){
2625 av_log_set_level(AV_LOG_DEBUG);
2627 if (key == 'c' || key == 'C'){
2628 char buf[4096], target[64], command[256], arg[256] = {0};
2631 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2633 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2638 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2639 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2640 target, time, command, arg);
2641 for (i = 0; i < nb_filtergraphs; i++) {
2642 FilterGraph *fg = filtergraphs[i];
2645 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2646 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2647 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2649 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2654 av_log(NULL, AV_LOG_ERROR,
2655 "Parse error, at least 3 arguments were expected, "
2656 "only %d given in string '%s'\n", n, buf);
2659 if (key == 'd' || key == 'D'){
2662 debug = input_streams[0]->st->codec->debug<<1;
2663 if(!debug) debug = 1;
2664 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2667 if(scanf("%d", &debug)!=1)
2668 fprintf(stderr,"error parsing debug value\n");
2669 for(i=0;i<nb_input_streams;i++) {
2670 input_streams[i]->st->codec->debug = debug;
2672 for(i=0;i<nb_output_streams;i++) {
2673 OutputStream *ost = output_streams[i];
2674 ost->st->codec->debug = debug;
2676 if(debug) av_log_set_level(AV_LOG_DEBUG);
2677 fprintf(stderr,"debug=%d\n", debug);
2680 fprintf(stderr, "key function\n"
2681 "? show this help\n"
2682 "+ increase verbosity\n"
2683 "- decrease verbosity\n"
2684 "c Send command to filtergraph\n"
2685 "D cycle through available debug modes\n"
2686 "h dump packets/hex press to cycle through the 3 states\n"
2688 "s Show QP histogram\n"
2695 static void *input_thread(void *arg)
2700 while (!transcoding_finished && ret >= 0) {
2702 ret = av_read_frame(f->ctx, &pkt);
2704 if (ret == AVERROR(EAGAIN)) {
2711 pthread_mutex_lock(&f->fifo_lock);
2712 while (!av_fifo_space(f->fifo))
2713 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2715 av_dup_packet(&pkt);
2716 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2718 pthread_mutex_unlock(&f->fifo_lock);
2725 static void free_input_threads(void)
2729 if (nb_input_files == 1)
2732 transcoding_finished = 1;
2734 for (i = 0; i < nb_input_files; i++) {
2735 InputFile *f = input_files[i];
2738 if (!f->fifo || f->joined)
2741 pthread_mutex_lock(&f->fifo_lock);
2742 while (av_fifo_size(f->fifo)) {
2743 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2744 av_free_packet(&pkt);
2746 pthread_cond_signal(&f->fifo_cond);
2747 pthread_mutex_unlock(&f->fifo_lock);
2749 pthread_join(f->thread, NULL);
2752 while (av_fifo_size(f->fifo)) {
2753 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2754 av_free_packet(&pkt);
2756 av_fifo_free(f->fifo);
2760 static int init_input_threads(void)
2764 if (nb_input_files == 1)
2767 for (i = 0; i < nb_input_files; i++) {
2768 InputFile *f = input_files[i];
2770 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2771 return AVERROR(ENOMEM);
2773 pthread_mutex_init(&f->fifo_lock, NULL);
2774 pthread_cond_init (&f->fifo_cond, NULL);
2776 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2777 return AVERROR(ret);
2782 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2786 pthread_mutex_lock(&f->fifo_lock);
2788 if (av_fifo_size(f->fifo)) {
2789 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2790 pthread_cond_signal(&f->fifo_cond);
2795 ret = AVERROR(EAGAIN);
2798 pthread_mutex_unlock(&f->fifo_lock);
2804 static int get_input_packet(InputFile *f, AVPacket *pkt)
2807 if (nb_input_files > 1)
2808 return get_input_packet_mt(f, pkt);
2810 return av_read_frame(f->ctx, pkt);
2813 static int got_eagain(void)
2816 for (i = 0; i < nb_output_streams; i++)
2817 if (output_streams[i]->unavailable)
2822 static void reset_eagain(void)
2825 for (i = 0; i < nb_input_files; i++)
2826 input_files[i]->eagain = 0;
2827 for (i = 0; i < nb_output_streams; i++)
2828 output_streams[i]->unavailable = 0;
2833 * - 0 -- one packet was read and processed
2834 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2835 * this function should be called again
2836 * - AVERROR_EOF -- this function should not be called again
2838 static int process_input(int file_index)
2840 InputFile *ifile = input_files[file_index];
2841 AVFormatContext *is;
2847 ret = get_input_packet(ifile, &pkt);
2849 if (ret == AVERROR(EAGAIN)) {
2854 if (ret != AVERROR_EOF) {
2855 print_error(is->filename, ret);
2859 ifile->eof_reached = 1;
2861 for (i = 0; i < ifile->nb_streams; i++) {
2862 ist = input_streams[ifile->ist_index + i];
2863 if (ist->decoding_needed)
2864 output_packet(ist, NULL);
2866 /* mark all outputs that don't go through lavfi as finished */
2867 for (j = 0; j < nb_output_streams; j++) {
2868 OutputStream *ost = output_streams[j];
2870 if (ost->source_index == ifile->ist_index + i &&
2871 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2872 close_output_stream(ost);
2876 return AVERROR(EAGAIN);
2882 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2883 is->streams[pkt.stream_index]);
2885 /* the following test is needed in case new streams appear
2886 dynamically in stream : we ignore them */
2887 if (pkt.stream_index >= ifile->nb_streams) {
2888 report_new_stream(file_index, &pkt);
2889 goto discard_packet;
2892 ist = input_streams[ifile->ist_index + pkt.stream_index];
2894 goto discard_packet;
2897 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2898 "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",
2899 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2900 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2901 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2902 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2903 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2904 av_ts2str(input_files[ist->file_index]->ts_offset),
2905 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2908 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2909 int64_t stime, stime2;
2910 // Correcting starttime based on the enabled streams
2911 // 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.
2912 // so we instead do it here as part of discontinuity handling
2913 if ( ist->next_dts == AV_NOPTS_VALUE
2914 && ifile->ts_offset == -is->start_time
2915 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2916 int64_t new_start_time = INT64_MAX;
2917 for (i=0; i<is->nb_streams; i++) {
2918 AVStream *st = is->streams[i];
2919 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2921 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2923 if (new_start_time > is->start_time) {
2924 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2925 ifile->ts_offset = -new_start_time;
2929 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2930 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2931 ist->wrap_correction_done = 1;
2933 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2934 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2935 ist->wrap_correction_done = 0;
2937 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2938 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2939 ist->wrap_correction_done = 0;
2943 if (pkt.dts != AV_NOPTS_VALUE)
2944 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2945 if (pkt.pts != AV_NOPTS_VALUE)
2946 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2948 if (pkt.pts != AV_NOPTS_VALUE)
2949 pkt.pts *= ist->ts_scale;
2950 if (pkt.dts != AV_NOPTS_VALUE)
2951 pkt.dts *= ist->ts_scale;
2953 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
2954 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
2955 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2956 int64_t delta = pkt_dts - ifile->last_ts;
2957 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2958 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2959 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
2960 ifile->ts_offset -= delta;
2961 av_log(NULL, AV_LOG_DEBUG,
2962 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2963 delta, ifile->ts_offset);
2964 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2965 if (pkt.pts != AV_NOPTS_VALUE)
2966 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2970 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2972 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2973 int64_t delta = pkt_dts - ist->next_dts;
2974 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2975 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2976 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2977 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2978 pkt_dts+1<ist->pts){
2979 ifile->ts_offset -= delta;
2980 av_log(NULL, AV_LOG_DEBUG,
2981 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2982 delta, ifile->ts_offset);
2983 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2984 if (pkt.pts != AV_NOPTS_VALUE)
2985 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2988 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2989 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2991 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2992 pkt.dts = AV_NOPTS_VALUE;
2994 if (pkt.pts != AV_NOPTS_VALUE){
2995 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2996 delta = pkt_pts - ist->next_dts;
2997 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2998 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3000 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3001 pkt.pts = AV_NOPTS_VALUE;
3007 if (pkt.dts != AV_NOPTS_VALUE)
3008 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3011 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",
3012 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3013 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3014 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3015 av_ts2str(input_files[ist->file_index]->ts_offset),
3016 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3019 sub2video_heartbeat(ist, pkt.pts);
3021 ret = output_packet(ist, &pkt);
3024 av_strerror(ret, buf, sizeof(buf));
3025 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3026 ist->file_index, ist->st->index, buf);
3032 av_free_packet(&pkt);
3038 * Perform a step of transcoding for the specified filter graph.
3040 * @param[in] graph filter graph to consider
3041 * @param[out] best_ist input stream where a frame would allow to continue
3042 * @return 0 for success, <0 for error
3044 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3047 int nb_requests, nb_requests_max = 0;
3048 InputFilter *ifilter;
3052 ret = avfilter_graph_request_oldest(graph->graph);
3054 return reap_filters();
3056 if (ret == AVERROR_EOF) {
3057 ret = reap_filters();
3058 for (i = 0; i < graph->nb_outputs; i++)
3059 close_output_stream(graph->outputs[i]->ost);
3062 if (ret != AVERROR(EAGAIN))
3065 for (i = 0; i < graph->nb_inputs; i++) {
3066 ifilter = graph->inputs[i];
3068 if (input_files[ist->file_index]->eagain ||
3069 input_files[ist->file_index]->eof_reached)
3071 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3072 if (nb_requests > nb_requests_max) {
3073 nb_requests_max = nb_requests;
3079 for (i = 0; i < graph->nb_outputs; i++)
3080 graph->outputs[i]->ost->unavailable = 1;
3086 * Run a single step of transcoding.
3088 * @return 0 for success, <0 for error
3090 static int transcode_step(void)
3096 ost = choose_output();
3103 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3108 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3113 av_assert0(ost->source_index >= 0);
3114 ist = input_streams[ost->source_index];
3117 ret = process_input(ist->file_index);
3118 if (ret == AVERROR(EAGAIN)) {
3119 if (input_files[ist->file_index]->eagain)
3120 ost->unavailable = 1;
3124 return ret == AVERROR_EOF ? 0 : ret;
3126 return reap_filters();
3130 * The following code is the main loop of the file converter
3132 static int transcode(void)
3135 AVFormatContext *os;
3138 int64_t timer_start;
3140 ret = transcode_init();
3144 if (stdin_interaction) {
3145 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3148 timer_start = av_gettime();
3151 if ((ret = init_input_threads()) < 0)
3155 while (!received_sigterm) {
3156 int64_t cur_time= av_gettime();
3158 /* if 'q' pressed, exits */
3159 if (stdin_interaction)
3160 if (check_keyboard_interaction(cur_time) < 0)
3163 /* check if there's any stream where output is still needed */
3164 if (!need_output()) {
3165 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3169 ret = transcode_step();
3171 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3174 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3178 /* dump report by using the output first video and audio streams */
3179 print_report(0, timer_start, cur_time);
3182 free_input_threads();
3185 /* at the end of stream, we must flush the decoder buffers */
3186 for (i = 0; i < nb_input_streams; i++) {
3187 ist = input_streams[i];
3188 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3189 output_packet(ist, NULL);
3196 /* write the trailer if needed and close file */
3197 for (i = 0; i < nb_output_files; i++) {
3198 os = output_files[i]->ctx;
3199 av_write_trailer(os);
3202 /* dump report by using the first video and audio streams */
3203 print_report(1, timer_start, av_gettime());
3205 /* close each encoder */
3206 for (i = 0; i < nb_output_streams; i++) {
3207 ost = output_streams[i];
3208 if (ost->encoding_needed) {
3209 av_freep(&ost->st->codec->stats_in);
3210 avcodec_close(ost->st->codec);
3214 /* close each decoder */
3215 for (i = 0; i < nb_input_streams; i++) {
3216 ist = input_streams[i];
3217 if (ist->decoding_needed) {
3218 avcodec_close(ist->st->codec);
3227 free_input_threads();
3230 if (output_streams) {
3231 for (i = 0; i < nb_output_streams; i++) {
3232 ost = output_streams[i];
3234 if (ost->stream_copy)
3235 av_freep(&ost->st->codec->extradata);
3237 fclose(ost->logfile);
3238 ost->logfile = NULL;
3240 av_freep(&ost->st->codec->subtitle_header);
3241 av_free(ost->forced_kf_pts);
3242 av_dict_free(&ost->opts);
3243 av_dict_free(&ost->swr_opts);
3244 av_dict_free(&ost->resample_opts);
3252 static int64_t getutime(void)
3255 struct rusage rusage;
3257 getrusage(RUSAGE_SELF, &rusage);
3258 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3259 #elif HAVE_GETPROCESSTIMES
3261 FILETIME c, e, k, u;
3262 proc = GetCurrentProcess();
3263 GetProcessTimes(proc, &c, &e, &k, &u);
3264 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3266 return av_gettime();
3270 static int64_t getmaxrss(void)
3272 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3273 struct rusage rusage;
3274 getrusage(RUSAGE_SELF, &rusage);
3275 return (int64_t)rusage.ru_maxrss * 1024;
3276 #elif HAVE_GETPROCESSMEMORYINFO
3278 PROCESS_MEMORY_COUNTERS memcounters;
3279 proc = GetCurrentProcess();
3280 memcounters.cb = sizeof(memcounters);
3281 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3282 return memcounters.PeakPagefileUsage;
3288 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3292 int main(int argc, char **argv)
3297 atexit(exit_program);
3299 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3301 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3302 parse_loglevel(argc, argv, options);
3304 if(argc>1 && !strcmp(argv[1], "-d")){
3306 av_log_set_callback(log_callback_null);
3311 avcodec_register_all();
3313 avdevice_register_all();
3315 avfilter_register_all();
3317 avformat_network_init();
3319 show_banner(argc, argv, options);
3323 /* parse options and open all input/output files */
3324 ret = ffmpeg_parse_options(argc, argv);
3328 if (nb_output_files <= 0 && nb_input_files == 0) {
3330 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3334 /* file converter / grab */
3335 if (nb_output_files <= 0) {
3336 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3340 // if (nb_input_files == 0) {
3341 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3345 current_time = ti = getutime();
3346 if (transcode() < 0)
3348 ti = getutime() - ti;
3350 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3353 exit(received_nb_signals ? 255 : 0);