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/fifo.h"
50 #include "libavutil/intreadwrite.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/mathematics.h"
53 #include "libavutil/pixdesc.h"
54 #include "libavutil/avstring.h"
55 #include "libavutil/libm.h"
56 #include "libavutil/imgutils.h"
57 #include "libavutil/timestamp.h"
58 #include "libavutil/bprint.h"
59 #include "libavutil/time.h"
60 #include "libavformat/os_support.h"
62 #include "libavformat/ffm.h" // not public API
64 # include "libavfilter/avcodec.h"
65 # include "libavfilter/avfilter.h"
66 # include "libavfilter/buffersrc.h"
67 # include "libavfilter/buffersink.h"
69 #if HAVE_SYS_RESOURCE_H
71 #include <sys/types.h>
72 #include <sys/resource.h>
73 #elif HAVE_GETPROCESSTIMES
76 #if HAVE_GETPROCESSMEMORYINFO
82 #include <sys/select.h>
87 #include <sys/ioctl.h>
101 #include "cmdutils.h"
103 #include "libavutil/avassert.h"
105 const char program_name[] = "ffmpeg";
106 const int program_birth_year = 2000;
108 static FILE *vstats_file;
110 const char *const forced_keyframes_const_names[] = {
119 static void do_video_stats(OutputStream *ost, int frame_size);
120 static int64_t getutime(void);
121 static int64_t getmaxrss(void);
123 static int run_as_daemon = 0;
124 static int64_t video_size = 0;
125 static int64_t audio_size = 0;
126 static int64_t subtitle_size = 0;
127 static int64_t extra_size = 0;
128 static int nb_frames_dup = 0;
129 static int nb_frames_drop = 0;
130 static int64_t decode_error_stat[2];
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;
164 static void free_input_threads(void);
168 Convert subtitles to video with alpha to insert them in filter graphs.
169 This is a temporary solution until libavfilter gets real subtitles support.
172 static int sub2video_get_blank_frame(InputStream *ist)
175 AVFrame *frame = ist->sub2video.frame;
177 av_frame_unref(frame);
178 ist->sub2video.frame->width = ist->sub2video.w;
179 ist->sub2video.frame->height = ist->sub2video.h;
180 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
181 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
183 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
187 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
190 uint32_t *pal, *dst2;
194 if (r->type != SUBTITLE_BITMAP) {
195 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
198 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
199 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
203 dst += r->y * dst_linesize + r->x * 4;
204 src = r->pict.data[0];
205 pal = (uint32_t *)r->pict.data[1];
206 for (y = 0; y < r->h; y++) {
207 dst2 = (uint32_t *)dst;
209 for (x = 0; x < r->w; x++)
210 *(dst2++) = pal[*(src2++)];
212 src += r->pict.linesize[0];
216 static void sub2video_push_ref(InputStream *ist, int64_t pts)
218 AVFrame *frame = ist->sub2video.frame;
221 av_assert1(frame->data[0]);
222 ist->sub2video.last_pts = frame->pts = pts;
223 for (i = 0; i < ist->nb_filters; i++)
224 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
225 AV_BUFFERSRC_FLAG_KEEP_REF |
226 AV_BUFFERSRC_FLAG_PUSH);
229 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
231 int w = ist->sub2video.w, h = ist->sub2video.h;
232 AVFrame *frame = ist->sub2video.frame;
236 int64_t pts, end_pts;
241 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
242 AV_TIME_BASE_Q, ist->st->time_base);
243 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
244 AV_TIME_BASE_Q, ist->st->time_base);
245 num_rects = sub->num_rects;
247 pts = ist->sub2video.end_pts;
251 if (sub2video_get_blank_frame(ist) < 0) {
252 av_log(ist->st->codec, AV_LOG_ERROR,
253 "Impossible to get a blank canvas.\n");
256 dst = frame->data [0];
257 dst_linesize = frame->linesize[0];
258 for (i = 0; i < num_rects; i++)
259 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
260 sub2video_push_ref(ist, pts);
261 ist->sub2video.end_pts = end_pts;
264 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
266 InputFile *infile = input_files[ist->file_index];
270 /* When a frame is read from a file, examine all sub2video streams in
271 the same file and send the sub2video frame again. Otherwise, decoded
272 video frames could be accumulating in the filter graph while a filter
273 (possibly overlay) is desperately waiting for a subtitle frame. */
274 for (i = 0; i < infile->nb_streams; i++) {
275 InputStream *ist2 = input_streams[infile->ist_index + i];
276 if (!ist2->sub2video.frame)
278 /* subtitles seem to be usually muxed ahead of other streams;
279 if not, substracting a larger time here is necessary */
280 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
281 /* do not send the heartbeat frame if the subtitle is already ahead */
282 if (pts2 <= ist2->sub2video.last_pts)
284 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
285 sub2video_update(ist2, NULL);
286 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
287 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
289 sub2video_push_ref(ist2, pts2);
293 static void sub2video_flush(InputStream *ist)
297 for (i = 0; i < ist->nb_filters; i++)
298 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
301 /* end of sub2video hack */
305 av_log(NULL, AV_LOG_QUIET, "%s", "");
308 tcsetattr (0, TCSANOW, &oldtty);
312 static volatile int received_sigterm = 0;
313 static volatile int received_nb_signals = 0;
316 sigterm_handler(int sig)
318 received_sigterm = sig;
319 received_nb_signals++;
321 if(received_nb_signals > 3)
332 istty = isatty(0) && isatty(2);
334 if (istty && tcgetattr (0, &tty) == 0) {
339 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
340 |INLCR|IGNCR|ICRNL|IXON);
341 tty.c_oflag |= OPOST;
342 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
343 tty.c_cflag &= ~(CSIZE|PARENB);
348 tcsetattr (0, TCSANOW, &tty);
350 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
353 avformat_network_deinit();
355 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
356 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
358 signal(SIGXCPU, sigterm_handler);
362 /* read a key without blocking */
363 static int read_key(void)
375 n = select(1, &rfds, NULL, NULL, &tv);
384 # if HAVE_PEEKNAMEDPIPE
386 static HANDLE input_handle;
389 input_handle = GetStdHandle(STD_INPUT_HANDLE);
390 is_pipe = !GetConsoleMode(input_handle, &dw);
393 if (stdin->_cnt > 0) {
398 /* When running under a GUI, you will end here. */
399 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
400 // input pipe may have been closed by the program that ran ffmpeg
418 static int decode_interrupt_cb(void *ctx)
420 return received_nb_signals > 1;
423 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
425 static void exit_program(void)
430 int maxrss = getmaxrss() / 1024;
431 printf("bench: maxrss=%ikB\n", maxrss);
434 for (i = 0; i < nb_filtergraphs; i++) {
435 avfilter_graph_free(&filtergraphs[i]->graph);
436 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
437 av_freep(&filtergraphs[i]->inputs[j]->name);
438 av_freep(&filtergraphs[i]->inputs[j]);
440 av_freep(&filtergraphs[i]->inputs);
441 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
442 av_freep(&filtergraphs[i]->outputs[j]->name);
443 av_freep(&filtergraphs[i]->outputs[j]);
445 av_freep(&filtergraphs[i]->outputs);
446 av_freep(&filtergraphs[i]->graph_desc);
447 av_freep(&filtergraphs[i]);
449 av_freep(&filtergraphs);
451 av_freep(&subtitle_out);
454 for (i = 0; i < nb_output_files; i++) {
455 AVFormatContext *s = output_files[i]->ctx;
456 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
458 avformat_free_context(s);
459 av_dict_free(&output_files[i]->opts);
460 av_freep(&output_files[i]);
462 for (i = 0; i < nb_output_streams; i++) {
463 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
465 AVBitStreamFilterContext *next = bsfc->next;
466 av_bitstream_filter_close(bsfc);
469 output_streams[i]->bitstream_filters = NULL;
470 avcodec_free_frame(&output_streams[i]->filtered_frame);
472 av_freep(&output_streams[i]->forced_keyframes);
473 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
474 av_freep(&output_streams[i]->avfilter);
475 av_freep(&output_streams[i]->logfile_prefix);
476 av_freep(&output_streams[i]);
479 free_input_threads();
481 for (i = 0; i < nb_input_files; i++) {
482 avformat_close_input(&input_files[i]->ctx);
483 av_freep(&input_files[i]);
485 for (i = 0; i < nb_input_streams; i++) {
486 av_frame_free(&input_streams[i]->decoded_frame);
487 av_frame_free(&input_streams[i]->filter_frame);
488 av_dict_free(&input_streams[i]->opts);
489 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
490 av_frame_free(&input_streams[i]->sub2video.frame);
491 av_freep(&input_streams[i]->filters);
492 av_freep(&input_streams[i]);
497 av_free(vstats_filename);
499 av_freep(&input_streams);
500 av_freep(&input_files);
501 av_freep(&output_streams);
502 av_freep(&output_files);
506 avformat_network_deinit();
508 if (received_sigterm) {
509 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
510 (int) received_sigterm);
514 void assert_avoptions(AVDictionary *m)
516 AVDictionaryEntry *t;
517 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
518 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
523 static void abort_codec_experimental(AVCodec *c, int encoder)
528 static void update_benchmark(const char *fmt, ...)
530 if (do_benchmark_all) {
531 int64_t t = getutime();
537 vsnprintf(buf, sizeof(buf), fmt, va);
539 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
545 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
547 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
548 AVCodecContext *avctx = ost->st->codec;
551 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
552 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
553 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
556 * Audio encoders may split the packets -- #frames in != #packets out.
557 * But there is no reordering, so we can limit the number of output packets
558 * by simply dropping them here.
559 * Counting encoded video frames needs to be done separately because of
560 * reordering, see do_video_out()
562 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
563 if (ost->frame_number >= ost->max_frames) {
571 AVPacket new_pkt = *pkt;
572 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
573 &new_pkt.data, &new_pkt.size,
574 pkt->data, pkt->size,
575 pkt->flags & AV_PKT_FLAG_KEY);
576 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
577 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
579 memcpy(t, new_pkt.data, new_pkt.size);
580 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
589 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
590 av_buffer_default_free, NULL, 0);
594 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
595 bsfc->filter->name, pkt->stream_index,
596 avctx->codec ? avctx->codec->name : "copy");
606 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
607 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
608 pkt->dts != AV_NOPTS_VALUE &&
609 ost->last_mux_dts != AV_NOPTS_VALUE) {
610 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
611 if (pkt->dts < max) {
612 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
613 av_log(s, loglevel, "Non-monotonous DTS in output stream "
614 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
615 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
617 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
620 av_log(s, loglevel, "changing to %"PRId64". This may result "
621 "in incorrect timestamps in the output file.\n",
623 if(pkt->pts >= pkt->dts)
624 pkt->pts = FFMAX(pkt->pts, max);
628 ost->last_mux_dts = pkt->dts;
630 pkt->stream_index = ost->index;
633 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
634 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
635 av_get_media_type_string(ost->st->codec->codec_type),
636 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
637 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
642 ret = av_interleaved_write_frame(s, pkt);
644 print_error("av_interleaved_write_frame()", ret);
649 static void close_output_stream(OutputStream *ost)
651 OutputFile *of = output_files[ost->file_index];
655 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
656 of->recording_time = FFMIN(of->recording_time, end);
660 static int check_recording_time(OutputStream *ost)
662 OutputFile *of = output_files[ost->file_index];
664 if (of->recording_time != INT64_MAX &&
665 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
666 AV_TIME_BASE_Q) >= 0) {
667 close_output_stream(ost);
673 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
676 AVCodecContext *enc = ost->st->codec;
680 av_init_packet(&pkt);
684 if (!check_recording_time(ost))
687 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
688 frame->pts = ost->sync_opts;
689 ost->sync_opts = frame->pts + frame->nb_samples;
691 av_assert0(pkt.size || !pkt.data);
692 update_benchmark(NULL);
693 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
694 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
697 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
700 if (pkt.pts != AV_NOPTS_VALUE)
701 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
702 if (pkt.dts != AV_NOPTS_VALUE)
703 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
704 if (pkt.duration > 0)
705 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
708 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
709 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
710 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
711 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
714 audio_size += pkt.size;
715 write_frame(s, &pkt, ost);
717 av_free_packet(&pkt);
721 static void do_subtitle_out(AVFormatContext *s,
726 int subtitle_out_max_size = 1024 * 1024;
727 int subtitle_out_size, nb, i;
732 if (sub->pts == AV_NOPTS_VALUE) {
733 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
739 enc = ost->st->codec;
742 subtitle_out = av_malloc(subtitle_out_max_size);
745 /* Note: DVB subtitle need one packet to draw them and one other
746 packet to clear them */
747 /* XXX: signal it in the codec context ? */
748 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
753 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
754 pts = sub->pts - output_files[ost->file_index]->start_time;
755 for (i = 0; i < nb; i++) {
756 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
757 if (!check_recording_time(ost))
761 // start_display_time is required to be 0
762 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
763 sub->end_display_time -= sub->start_display_time;
764 sub->start_display_time = 0;
767 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
768 subtitle_out_max_size, sub);
769 if (subtitle_out_size < 0) {
770 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
774 av_init_packet(&pkt);
775 pkt.data = subtitle_out;
776 pkt.size = subtitle_out_size;
777 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
778 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
779 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
780 /* XXX: the pts correction is handled here. Maybe handling
781 it in the codec would be better */
783 pkt.pts += 90 * sub->start_display_time;
785 pkt.pts += 90 * sub->end_display_time;
787 subtitle_size += pkt.size;
788 write_frame(s, &pkt, ost);
792 static void do_video_out(AVFormatContext *s,
796 int ret, format_video_sync;
798 AVCodecContext *enc = ost->st->codec;
800 double sync_ipts, delta;
803 InputStream *ist = NULL;
805 if (ost->source_index >= 0)
806 ist = input_streams[ost->source_index];
808 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
809 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
811 sync_ipts = in_picture->pts;
812 delta = sync_ipts - ost->sync_opts + duration;
814 /* by default, we output a single frame */
817 format_video_sync = video_sync_method;
818 if (format_video_sync == VSYNC_AUTO)
819 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
821 switch (format_video_sync) {
823 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
826 else if (delta > 1.1)
827 nb_frames = lrintf(delta);
832 else if (delta > 0.6)
833 ost->sync_opts = lrint(sync_ipts);
836 case VSYNC_PASSTHROUGH:
837 ost->sync_opts = lrint(sync_ipts);
843 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
844 if (nb_frames == 0) {
846 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
848 } else if (nb_frames > 1) {
849 if (nb_frames > dts_error_threshold * 30) {
850 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
854 nb_frames_dup += nb_frames - 1;
855 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
858 /* duplicates frame if needed */
859 for (i = 0; i < nb_frames; i++) {
860 av_init_packet(&pkt);
864 in_picture->pts = ost->sync_opts;
867 if (!check_recording_time(ost))
869 if (ost->frame_number >= ost->max_frames)
873 if (s->oformat->flags & AVFMT_RAWPICTURE &&
874 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
875 /* raw pictures are written as AVPicture structure to
876 avoid any copies. We support temporarily the older
878 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
879 enc->coded_frame->top_field_first = in_picture->top_field_first;
880 if (enc->coded_frame->interlaced_frame)
881 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
883 enc->field_order = AV_FIELD_PROGRESSIVE;
884 pkt.data = (uint8_t *)in_picture;
885 pkt.size = sizeof(AVPicture);
886 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
887 pkt.flags |= AV_PKT_FLAG_KEY;
889 video_size += pkt.size;
890 write_frame(s, &pkt, ost);
892 int got_packet, forced_keyframe = 0;
895 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
896 ost->top_field_first >= 0)
897 in_picture->top_field_first = !!ost->top_field_first;
899 if (in_picture->interlaced_frame) {
900 if (enc->codec->id == AV_CODEC_ID_MJPEG)
901 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
903 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
905 enc->field_order = AV_FIELD_PROGRESSIVE;
907 in_picture->quality = ost->st->codec->global_quality;
908 if (!enc->me_threshold)
909 in_picture->pict_type = 0;
911 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
912 in_picture->pts * av_q2d(enc->time_base) : NAN;
913 if (ost->forced_kf_index < ost->forced_kf_count &&
914 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
915 ost->forced_kf_index++;
917 } else if (ost->forced_keyframes_pexpr) {
919 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
920 res = av_expr_eval(ost->forced_keyframes_pexpr,
921 ost->forced_keyframes_expr_const_values, NULL);
922 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
923 ost->forced_keyframes_expr_const_values[FKF_N],
924 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
925 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
926 ost->forced_keyframes_expr_const_values[FKF_T],
927 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
931 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
932 ost->forced_keyframes_expr_const_values[FKF_N];
933 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
934 ost->forced_keyframes_expr_const_values[FKF_T];
935 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
938 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
940 if (forced_keyframe) {
941 in_picture->pict_type = AV_PICTURE_TYPE_I;
942 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
945 update_benchmark(NULL);
946 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
947 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
949 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
954 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
955 pkt.pts = ost->sync_opts;
957 if (pkt.pts != AV_NOPTS_VALUE)
958 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
959 if (pkt.dts != AV_NOPTS_VALUE)
960 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
963 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
964 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
965 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
966 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
969 frame_size = pkt.size;
970 video_size += pkt.size;
971 write_frame(s, &pkt, ost);
972 av_free_packet(&pkt);
974 /* if two pass, output log */
975 if (ost->logfile && enc->stats_out) {
976 fprintf(ost->logfile, "%s", enc->stats_out);
982 * For video, number of frames in == number of packets out.
983 * But there may be reordering, so we can't throw away frames on encoder
984 * flush, we need to limit them here, before they go into encoder.
988 if (vstats_filename && frame_size)
989 do_video_stats(ost, frame_size);
993 static double psnr(double d)
995 return -10.0 * log(d) / log(10.0);
998 static void do_video_stats(OutputStream *ost, int frame_size)
1000 AVCodecContext *enc;
1002 double ti1, bitrate, avg_bitrate;
1004 /* this is executed just the first time do_video_stats is called */
1006 vstats_file = fopen(vstats_filename, "w");
1013 enc = ost->st->codec;
1014 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1015 frame_number = ost->st->nb_frames;
1016 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1017 if (enc->flags&CODEC_FLAG_PSNR)
1018 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1020 fprintf(vstats_file,"f_size= %6d ", frame_size);
1021 /* compute pts value */
1022 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1026 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1027 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1028 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1029 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1030 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1035 * Get and encode new output from any of the filtergraphs, without causing
1038 * @return 0 for success, <0 for severe errors
1040 static int reap_filters(void)
1042 AVFrame *filtered_frame = NULL;
1046 /* Reap all buffers present in the buffer sinks */
1047 for (i = 0; i < nb_output_streams; i++) {
1048 OutputStream *ost = output_streams[i];
1049 OutputFile *of = output_files[ost->file_index];
1055 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1056 return AVERROR(ENOMEM);
1058 avcodec_get_frame_defaults(ost->filtered_frame);
1059 filtered_frame = ost->filtered_frame;
1062 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1063 AV_BUFFERSINK_FLAG_NO_REQUEST);
1065 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1066 av_log(NULL, AV_LOG_WARNING,
1067 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1071 frame_pts = AV_NOPTS_VALUE;
1072 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1073 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1074 ost->filter->filter->inputs[0]->time_base,
1075 ost->st->codec->time_base) -
1076 av_rescale_q(of->start_time,
1078 ost->st->codec->time_base);
1080 //if (ost->source_index >= 0)
1081 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1084 switch (ost->filter->filter->inputs[0]->type) {
1085 case AVMEDIA_TYPE_VIDEO:
1086 filtered_frame->pts = frame_pts;
1087 if (!ost->frame_aspect_ratio.num)
1088 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1090 do_video_out(of->ctx, ost, filtered_frame);
1092 case AVMEDIA_TYPE_AUDIO:
1093 filtered_frame->pts = frame_pts;
1094 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1095 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1096 av_log(NULL, AV_LOG_ERROR,
1097 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1100 do_audio_out(of->ctx, ost, filtered_frame);
1103 // TODO support subtitle filters
1107 av_frame_unref(filtered_frame);
1114 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1117 AVBPrint buf_script;
1119 AVFormatContext *oc;
1121 AVCodecContext *enc;
1122 int frame_number, vid, i;
1124 int64_t pts = INT64_MIN;
1125 static int64_t last_time = -1;
1126 static int qp_histogram[52];
1127 int hours, mins, secs, us;
1129 if (!print_stats && !is_last_report && !progress_avio)
1132 if (!is_last_report) {
1133 if (last_time == -1) {
1134 last_time = cur_time;
1137 if ((cur_time - last_time) < 500000)
1139 last_time = cur_time;
1143 oc = output_files[0]->ctx;
1145 total_size = avio_size(oc->pb);
1146 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1147 total_size = avio_tell(oc->pb);
1151 av_bprint_init(&buf_script, 0, 1);
1152 for (i = 0; i < nb_output_streams; i++) {
1154 ost = output_streams[i];
1155 enc = ost->st->codec;
1156 if (!ost->stream_copy && enc->coded_frame)
1157 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1158 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1159 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1160 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1161 ost->file_index, ost->index, q);
1163 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1164 float fps, t = (cur_time-timer_start) / 1000000.0;
1166 frame_number = ost->frame_number;
1167 fps = t > 1 ? frame_number / t : 0;
1168 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1169 frame_number, fps < 9.95, fps, q);
1170 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1171 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1172 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1173 ost->file_index, ost->index, q);
1175 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1179 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1181 for (j = 0; j < 32; j++)
1182 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1184 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1186 double error, error_sum = 0;
1187 double scale, scale_sum = 0;
1189 char type[3] = { 'Y','U','V' };
1190 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1191 for (j = 0; j < 3; j++) {
1192 if (is_last_report) {
1193 error = enc->error[j];
1194 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1196 error = enc->coded_frame->error[j];
1197 scale = enc->width * enc->height * 255.0 * 255.0;
1203 p = psnr(error / scale);
1204 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1205 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1206 ost->file_index, ost->index, type[j] | 32, p);
1208 p = psnr(error_sum / scale_sum);
1209 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1210 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1211 ost->file_index, ost->index, p);
1215 /* compute min output value */
1216 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1217 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1218 ost->st->time_base, AV_TIME_BASE_Q));
1221 secs = pts / AV_TIME_BASE;
1222 us = pts % AV_TIME_BASE;
1228 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1230 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1232 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1233 "size=%8.0fkB time=", total_size / 1024.0);
1234 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1235 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1236 (100 * us) / AV_TIME_BASE);
1237 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1239 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1240 "bitrate=%6.1fkbits/s", bitrate);
1241 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1242 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1243 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1244 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1245 hours, mins, secs, us);
1247 if (nb_frames_dup || nb_frames_drop)
1248 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1249 nb_frames_dup, nb_frames_drop);
1250 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1251 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1253 if (print_stats || is_last_report) {
1254 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1255 fprintf(stderr, "%s \r", buf);
1257 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1262 if (progress_avio) {
1263 av_bprintf(&buf_script, "progress=%s\n",
1264 is_last_report ? "end" : "continue");
1265 avio_write(progress_avio, buf_script.str,
1266 FFMIN(buf_script.len, buf_script.size - 1));
1267 avio_flush(progress_avio);
1268 av_bprint_finalize(&buf_script, NULL);
1269 if (is_last_report) {
1270 avio_close(progress_avio);
1271 progress_avio = NULL;
1275 if (is_last_report) {
1276 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1277 av_log(NULL, AV_LOG_INFO, "\n");
1278 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1279 video_size / 1024.0,
1280 audio_size / 1024.0,
1281 subtitle_size / 1024.0,
1282 extra_size / 1024.0,
1283 100.0 * (total_size - raw) / raw
1285 if(video_size + audio_size + subtitle_size + extra_size == 0){
1286 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1291 static void flush_encoders(void)
1295 for (i = 0; i < nb_output_streams; i++) {
1296 OutputStream *ost = output_streams[i];
1297 AVCodecContext *enc = ost->st->codec;
1298 AVFormatContext *os = output_files[ost->file_index]->ctx;
1299 int stop_encoding = 0;
1301 if (!ost->encoding_needed)
1304 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1306 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1310 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1314 switch (ost->st->codec->codec_type) {
1315 case AVMEDIA_TYPE_AUDIO:
1316 encode = avcodec_encode_audio2;
1320 case AVMEDIA_TYPE_VIDEO:
1321 encode = avcodec_encode_video2;
1332 av_init_packet(&pkt);
1336 update_benchmark(NULL);
1337 ret = encode(enc, &pkt, NULL, &got_packet);
1338 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1340 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1344 if (ost->logfile && enc->stats_out) {
1345 fprintf(ost->logfile, "%s", enc->stats_out);
1351 if (pkt.pts != AV_NOPTS_VALUE)
1352 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1353 if (pkt.dts != AV_NOPTS_VALUE)
1354 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1355 if (pkt.duration > 0)
1356 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1357 write_frame(os, &pkt, ost);
1358 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1359 do_video_stats(ost, pkt.size);
1370 * Check whether a packet from ist should be written into ost at this time
1372 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1374 OutputFile *of = output_files[ost->file_index];
1375 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1377 if (ost->source_index != ist_index)
1380 if (of->start_time && ist->pts < of->start_time)
1386 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1388 OutputFile *of = output_files[ost->file_index];
1389 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1390 int64_t ist_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ist->st->time_base);
1394 av_init_packet(&opkt);
1396 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1397 !ost->copy_initial_nonkeyframes)
1400 if (pkt->pts == AV_NOPTS_VALUE) {
1401 if (!ost->frame_number && ist->pts < of->start_time &&
1402 !ost->copy_prior_start)
1405 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1406 !ost->copy_prior_start)
1410 if (of->recording_time != INT64_MAX &&
1411 ist->pts >= of->recording_time + of->start_time) {
1412 close_output_stream(ost);
1416 /* force the input stream PTS */
1417 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1418 audio_size += pkt->size;
1419 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1420 video_size += pkt->size;
1422 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1423 subtitle_size += pkt->size;
1426 if (pkt->pts != AV_NOPTS_VALUE)
1427 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1429 opkt.pts = AV_NOPTS_VALUE;
1431 if (pkt->dts == AV_NOPTS_VALUE)
1432 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1434 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1435 opkt.dts -= ost_tb_start_time;
1437 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1438 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1440 duration = ist->st->codec->frame_size;
1441 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1442 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1443 ost->st->time_base) - ost_tb_start_time;
1446 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1447 opkt.flags = pkt->flags;
1449 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1450 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1451 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1452 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1453 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1455 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1456 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1461 opkt.data = pkt->data;
1462 opkt.size = pkt->size;
1465 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1466 /* store AVPicture in AVPacket, as expected by the output format */
1467 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1468 opkt.data = (uint8_t *)&pict;
1469 opkt.size = sizeof(AVPicture);
1470 opkt.flags |= AV_PKT_FLAG_KEY;
1473 write_frame(of->ctx, &opkt, ost);
1474 ost->st->codec->frame_number++;
1477 int guess_input_channel_layout(InputStream *ist)
1479 AVCodecContext *dec = ist->st->codec;
1481 if (!dec->channel_layout) {
1482 char layout_name[256];
1484 if (dec->channels > ist->guess_layout_max)
1486 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1487 if (!dec->channel_layout)
1489 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1490 dec->channels, dec->channel_layout);
1491 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1492 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1497 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1499 AVFrame *decoded_frame, *f;
1500 AVCodecContext *avctx = ist->st->codec;
1501 int i, ret, err = 0, resample_changed;
1502 AVRational decoded_frame_tb;
1504 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1505 return AVERROR(ENOMEM);
1506 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1507 return AVERROR(ENOMEM);
1508 decoded_frame = ist->decoded_frame;
1510 update_benchmark(NULL);
1511 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1512 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1514 if (ret >= 0 && avctx->sample_rate <= 0) {
1515 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1516 ret = AVERROR_INVALIDDATA;
1519 if (*got_output || ret<0 || pkt->size)
1520 decode_error_stat[ret<0] ++;
1522 if (!*got_output || ret < 0) {
1524 for (i = 0; i < ist->nb_filters; i++)
1526 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1528 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
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 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1544 ist->resample_channels != avctx->channels ||
1545 ist->resample_channel_layout != decoded_frame->channel_layout ||
1546 ist->resample_sample_rate != decoded_frame->sample_rate;
1547 if (resample_changed) {
1548 char layout1[64], layout2[64];
1550 if (!guess_input_channel_layout(ist)) {
1551 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1552 "layout for Input Stream #%d.%d\n", ist->file_index,
1556 decoded_frame->channel_layout = avctx->channel_layout;
1558 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1559 ist->resample_channel_layout);
1560 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1561 decoded_frame->channel_layout);
1563 av_log(NULL, AV_LOG_INFO,
1564 "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",
1565 ist->file_index, ist->st->index,
1566 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1567 ist->resample_channels, layout1,
1568 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1569 avctx->channels, layout2);
1571 ist->resample_sample_fmt = decoded_frame->format;
1572 ist->resample_sample_rate = decoded_frame->sample_rate;
1573 ist->resample_channel_layout = decoded_frame->channel_layout;
1574 ist->resample_channels = avctx->channels;
1576 for (i = 0; i < nb_filtergraphs; i++)
1577 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1578 FilterGraph *fg = filtergraphs[i];
1580 if (configure_filtergraph(fg) < 0) {
1581 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1584 for (j = 0; j < fg->nb_outputs; j++) {
1585 OutputStream *ost = fg->outputs[j]->ost;
1586 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1587 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1588 av_buffersink_set_frame_size(ost->filter->filter,
1589 ost->st->codec->frame_size);
1594 /* if the decoder provides a pts, use it instead of the last packet pts.
1595 the decoder could be delaying output by a packet or more. */
1596 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1597 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1598 decoded_frame_tb = avctx->time_base;
1599 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1600 decoded_frame->pts = decoded_frame->pkt_pts;
1601 pkt->pts = AV_NOPTS_VALUE;
1602 decoded_frame_tb = ist->st->time_base;
1603 } else if (pkt->pts != AV_NOPTS_VALUE) {
1604 decoded_frame->pts = pkt->pts;
1605 pkt->pts = AV_NOPTS_VALUE;
1606 decoded_frame_tb = ist->st->time_base;
1608 decoded_frame->pts = ist->dts;
1609 decoded_frame_tb = AV_TIME_BASE_Q;
1611 if (decoded_frame->pts != AV_NOPTS_VALUE)
1612 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1613 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1614 (AVRational){1, ist->st->codec->sample_rate});
1615 for (i = 0; i < ist->nb_filters; i++) {
1616 if (i < ist->nb_filters - 1) {
1617 f = ist->filter_frame;
1618 err = av_frame_ref(f, decoded_frame);
1623 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1624 AV_BUFFERSRC_FLAG_PUSH);
1625 if (err == AVERROR_EOF)
1626 err = 0; /* ignore */
1630 decoded_frame->pts = AV_NOPTS_VALUE;
1632 av_frame_unref(ist->filter_frame);
1633 av_frame_unref(decoded_frame);
1634 return err < 0 ? err : ret;
1637 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1639 AVFrame *decoded_frame, *f;
1640 void *buffer_to_free = NULL;
1641 int i, ret = 0, err = 0, resample_changed;
1642 int64_t best_effort_timestamp;
1643 AVRational *frame_sample_aspect;
1645 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1646 return AVERROR(ENOMEM);
1647 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1648 return AVERROR(ENOMEM);
1649 decoded_frame = ist->decoded_frame;
1650 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1652 update_benchmark(NULL);
1653 ret = avcodec_decode_video2(ist->st->codec,
1654 decoded_frame, got_output, pkt);
1655 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1657 if (*got_output || ret<0 || pkt->size)
1658 decode_error_stat[ret<0] ++;
1660 if (!*got_output || ret < 0) {
1662 for (i = 0; i < ist->nb_filters; i++)
1664 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1666 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1672 if(ist->top_field_first>=0)
1673 decoded_frame->top_field_first = ist->top_field_first;
1675 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1676 if(best_effort_timestamp != AV_NOPTS_VALUE)
1677 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1680 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1681 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1682 ist->st->index, av_ts2str(decoded_frame->pts),
1683 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1684 best_effort_timestamp,
1685 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1686 decoded_frame->key_frame, decoded_frame->pict_type);
1691 if (ist->st->sample_aspect_ratio.num)
1692 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1694 resample_changed = ist->resample_width != decoded_frame->width ||
1695 ist->resample_height != decoded_frame->height ||
1696 ist->resample_pix_fmt != decoded_frame->format;
1697 if (resample_changed) {
1698 av_log(NULL, AV_LOG_INFO,
1699 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1700 ist->file_index, ist->st->index,
1701 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1702 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1704 ist->resample_width = decoded_frame->width;
1705 ist->resample_height = decoded_frame->height;
1706 ist->resample_pix_fmt = decoded_frame->format;
1708 for (i = 0; i < nb_filtergraphs; i++) {
1709 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1710 configure_filtergraph(filtergraphs[i]) < 0) {
1711 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1717 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1718 for (i = 0; i < ist->nb_filters; i++) {
1719 if (!frame_sample_aspect->num)
1720 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1722 if (i < ist->nb_filters - 1) {
1723 f = ist->filter_frame;
1724 err = av_frame_ref(f, decoded_frame);
1729 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1730 if (ret == AVERROR_EOF) {
1731 ret = 0; /* ignore */
1732 } else if (ret < 0) {
1733 av_log(NULL, AV_LOG_FATAL,
1734 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1739 av_frame_unref(ist->filter_frame);
1740 av_frame_unref(decoded_frame);
1741 av_free(buffer_to_free);
1742 return err < 0 ? err : ret;
1745 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1747 AVSubtitle subtitle;
1748 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1749 &subtitle, got_output, pkt);
1751 if (*got_output || ret<0 || pkt->size)
1752 decode_error_stat[ret<0] ++;
1754 if (ret < 0 || !*got_output) {
1756 sub2video_flush(ist);
1760 if (ist->fix_sub_duration) {
1761 if (ist->prev_sub.got_output) {
1762 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1763 1000, AV_TIME_BASE);
1764 if (end < ist->prev_sub.subtitle.end_display_time) {
1765 av_log(ist->st->codec, AV_LOG_DEBUG,
1766 "Subtitle duration reduced from %d to %d\n",
1767 ist->prev_sub.subtitle.end_display_time, end);
1768 ist->prev_sub.subtitle.end_display_time = end;
1771 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1772 FFSWAP(int, ret, ist->prev_sub.ret);
1773 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1776 sub2video_update(ist, &subtitle);
1778 if (!*got_output || !subtitle.num_rects)
1781 for (i = 0; i < nb_output_streams; i++) {
1782 OutputStream *ost = output_streams[i];
1784 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1787 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1790 avsubtitle_free(&subtitle);
1794 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1795 static int output_packet(InputStream *ist, const AVPacket *pkt)
1801 if (!ist->saw_first_ts) {
1802 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;
1804 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1805 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1806 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1808 ist->saw_first_ts = 1;
1811 if (ist->next_dts == AV_NOPTS_VALUE)
1812 ist->next_dts = ist->dts;
1813 if (ist->next_pts == AV_NOPTS_VALUE)
1814 ist->next_pts = ist->pts;
1818 av_init_packet(&avpkt);
1826 if (pkt->dts != AV_NOPTS_VALUE) {
1827 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1828 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1829 ist->next_pts = ist->pts = ist->dts;
1832 // while we have more to decode or while the decoder did output something on EOF
1833 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1837 ist->pts = ist->next_pts;
1838 ist->dts = ist->next_dts;
1840 if (avpkt.size && avpkt.size != pkt->size) {
1841 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1842 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1843 ist->showed_multi_packet_warning = 1;
1846 switch (ist->st->codec->codec_type) {
1847 case AVMEDIA_TYPE_AUDIO:
1848 ret = decode_audio (ist, &avpkt, &got_output);
1850 case AVMEDIA_TYPE_VIDEO:
1851 ret = decode_video (ist, &avpkt, &got_output);
1852 if (avpkt.duration) {
1853 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1854 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1855 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1856 duration = ((int64_t)AV_TIME_BASE *
1857 ist->st->codec->time_base.num * ticks) /
1858 ist->st->codec->time_base.den;
1862 if(ist->dts != AV_NOPTS_VALUE && duration) {
1863 ist->next_dts += duration;
1865 ist->next_dts = AV_NOPTS_VALUE;
1868 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1870 case AVMEDIA_TYPE_SUBTITLE:
1871 ret = transcode_subtitles(ist, &avpkt, &got_output);
1881 avpkt.pts= AV_NOPTS_VALUE;
1883 // touch data and size only if not EOF
1885 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1895 /* handle stream copy */
1896 if (!ist->decoding_needed) {
1897 ist->dts = ist->next_dts;
1898 switch (ist->st->codec->codec_type) {
1899 case AVMEDIA_TYPE_AUDIO:
1900 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1901 ist->st->codec->sample_rate;
1903 case AVMEDIA_TYPE_VIDEO:
1904 if (ist->framerate.num) {
1905 // TODO: Remove work-around for c99-to-c89 issue 7
1906 AVRational time_base_q = AV_TIME_BASE_Q;
1907 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1908 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1909 } else if (pkt->duration) {
1910 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1911 } else if(ist->st->codec->time_base.num != 0) {
1912 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1913 ist->next_dts += ((int64_t)AV_TIME_BASE *
1914 ist->st->codec->time_base.num * ticks) /
1915 ist->st->codec->time_base.den;
1919 ist->pts = ist->dts;
1920 ist->next_pts = ist->next_dts;
1922 for (i = 0; pkt && i < nb_output_streams; i++) {
1923 OutputStream *ost = output_streams[i];
1925 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1928 do_streamcopy(ist, ost, pkt);
1934 static void print_sdp(void)
1938 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1942 for (i = 0; i < nb_output_files; i++)
1943 avc[i] = output_files[i]->ctx;
1945 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1946 printf("SDP:\n%s\n", sdp);
1951 static int init_input_stream(int ist_index, char *error, int error_len)
1954 InputStream *ist = input_streams[ist_index];
1956 if (ist->decoding_needed) {
1957 AVCodec *codec = ist->dec;
1959 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1960 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1961 return AVERROR(EINVAL);
1964 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1966 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1967 av_dict_set(&ist->opts, "threads", "auto", 0);
1968 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1970 if (ret == AVERROR_EXPERIMENTAL)
1971 abort_codec_experimental(codec, 0);
1973 av_strerror(ret, errbuf, sizeof(errbuf));
1975 snprintf(error, error_len,
1976 "Error while opening decoder for input stream "
1978 ist->file_index, ist->st->index, errbuf);
1981 assert_avoptions(ist->opts);
1984 ist->next_pts = AV_NOPTS_VALUE;
1985 ist->next_dts = AV_NOPTS_VALUE;
1991 static InputStream *get_input_stream(OutputStream *ost)
1993 if (ost->source_index >= 0)
1994 return input_streams[ost->source_index];
1998 static int compare_int64(const void *a, const void *b)
2000 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2001 return va < vb ? -1 : va > vb ? +1 : 0;
2004 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2005 AVCodecContext *avctx)
2008 int n = 1, i, size, index = 0;
2011 for (p = kf; *p; p++)
2015 pts = av_malloc(sizeof(*pts) * size);
2017 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2022 for (i = 0; i < n; i++) {
2023 char *next = strchr(p, ',');
2028 if (!memcmp(p, "chapters", 8)) {
2030 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2033 if (avf->nb_chapters > INT_MAX - size ||
2034 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2036 av_log(NULL, AV_LOG_FATAL,
2037 "Could not allocate forced key frames array.\n");
2040 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2041 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2043 for (j = 0; j < avf->nb_chapters; j++) {
2044 AVChapter *c = avf->chapters[j];
2045 av_assert1(index < size);
2046 pts[index++] = av_rescale_q(c->start, c->time_base,
2047 avctx->time_base) + t;
2052 t = parse_time_or_die("force_key_frames", p, 1);
2053 av_assert1(index < size);
2054 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2061 av_assert0(index == size);
2062 qsort(pts, size, sizeof(*pts), compare_int64);
2063 ost->forced_kf_count = size;
2064 ost->forced_kf_pts = pts;
2067 static void report_new_stream(int input_index, AVPacket *pkt)
2069 InputFile *file = input_files[input_index];
2070 AVStream *st = file->ctx->streams[pkt->stream_index];
2072 if (pkt->stream_index < file->nb_streams_warn)
2074 av_log(file->ctx, AV_LOG_WARNING,
2075 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2076 av_get_media_type_string(st->codec->codec_type),
2077 input_index, pkt->stream_index,
2078 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2079 file->nb_streams_warn = pkt->stream_index + 1;
2082 static int transcode_init(void)
2084 int ret = 0, i, j, k;
2085 AVFormatContext *oc;
2086 AVCodecContext *codec;
2092 /* init framerate emulation */
2093 for (i = 0; i < nb_input_files; i++) {
2094 InputFile *ifile = input_files[i];
2095 if (ifile->rate_emu)
2096 for (j = 0; j < ifile->nb_streams; j++)
2097 input_streams[j + ifile->ist_index]->start = av_gettime();
2100 /* output stream init */
2101 for (i = 0; i < nb_output_files; i++) {
2102 oc = output_files[i]->ctx;
2103 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2104 av_dump_format(oc, i, oc->filename, 1);
2105 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2106 return AVERROR(EINVAL);
2110 /* init complex filtergraphs */
2111 for (i = 0; i < nb_filtergraphs; i++)
2112 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2115 /* for each output stream, we compute the right encoding parameters */
2116 for (i = 0; i < nb_output_streams; i++) {
2117 AVCodecContext *icodec = NULL;
2118 ost = output_streams[i];
2119 oc = output_files[ost->file_index]->ctx;
2120 ist = get_input_stream(ost);
2122 if (ost->attachment_filename)
2125 codec = ost->st->codec;
2128 icodec = ist->st->codec;
2130 ost->st->disposition = ist->st->disposition;
2131 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2132 codec->chroma_sample_location = icodec->chroma_sample_location;
2135 if (ost->stream_copy) {
2137 uint64_t extra_size;
2139 av_assert0(ist && !ost->filter);
2141 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2143 if (extra_size > INT_MAX) {
2144 return AVERROR(EINVAL);
2147 /* if stream_copy is selected, no need to decode or encode */
2148 codec->codec_id = icodec->codec_id;
2149 codec->codec_type = icodec->codec_type;
2151 if (!codec->codec_tag) {
2152 unsigned int codec_tag;
2153 if (!oc->oformat->codec_tag ||
2154 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2155 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2156 codec->codec_tag = icodec->codec_tag;
2159 codec->bit_rate = icodec->bit_rate;
2160 codec->rc_max_rate = icodec->rc_max_rate;
2161 codec->rc_buffer_size = icodec->rc_buffer_size;
2162 codec->field_order = icodec->field_order;
2163 codec->extradata = av_mallocz(extra_size);
2164 if (!codec->extradata) {
2165 return AVERROR(ENOMEM);
2167 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2168 codec->extradata_size= icodec->extradata_size;
2169 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2171 codec->time_base = ist->st->time_base;
2173 * Avi is a special case here because it supports variable fps but
2174 * having the fps and timebase differe significantly adds quite some
2177 if(!strcmp(oc->oformat->name, "avi")) {
2178 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2179 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2180 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2181 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2183 codec->time_base.num = ist->st->r_frame_rate.den;
2184 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2185 codec->ticks_per_frame = 2;
2186 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2187 && av_q2d(ist->st->time_base) < 1.0/500
2189 codec->time_base = icodec->time_base;
2190 codec->time_base.num *= icodec->ticks_per_frame;
2191 codec->time_base.den *= 2;
2192 codec->ticks_per_frame = 2;
2194 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2195 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2196 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2197 && strcmp(oc->oformat->name, "f4v")
2199 if( copy_tb<0 && icodec->time_base.den
2200 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2201 && av_q2d(ist->st->time_base) < 1.0/500
2203 codec->time_base = icodec->time_base;
2204 codec->time_base.num *= icodec->ticks_per_frame;
2207 if ( codec->codec_tag == AV_RL32("tmcd")
2208 && icodec->time_base.num < icodec->time_base.den
2209 && icodec->time_base.num > 0
2210 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2211 codec->time_base = icodec->time_base;
2214 if (ist && !ost->frame_rate.num)
2215 ost->frame_rate = ist->framerate;
2216 if(ost->frame_rate.num)
2217 codec->time_base = av_inv_q(ost->frame_rate);
2219 av_reduce(&codec->time_base.num, &codec->time_base.den,
2220 codec->time_base.num, codec->time_base.den, INT_MAX);
2222 switch (codec->codec_type) {
2223 case AVMEDIA_TYPE_AUDIO:
2224 if (audio_volume != 256) {
2225 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2228 codec->channel_layout = icodec->channel_layout;
2229 codec->sample_rate = icodec->sample_rate;
2230 codec->channels = icodec->channels;
2231 codec->frame_size = icodec->frame_size;
2232 codec->audio_service_type = icodec->audio_service_type;
2233 codec->block_align = icodec->block_align;
2234 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2235 codec->block_align= 0;
2236 if(codec->codec_id == AV_CODEC_ID_AC3)
2237 codec->block_align= 0;
2239 case AVMEDIA_TYPE_VIDEO:
2240 codec->pix_fmt = icodec->pix_fmt;
2241 codec->width = icodec->width;
2242 codec->height = icodec->height;
2243 codec->has_b_frames = icodec->has_b_frames;
2244 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2246 av_mul_q(ost->frame_aspect_ratio,
2247 (AVRational){ codec->height, codec->width });
2248 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2249 "with stream copy may produce invalid files\n");
2251 else if (ist->st->sample_aspect_ratio.num)
2252 sar = ist->st->sample_aspect_ratio;
2254 sar = icodec->sample_aspect_ratio;
2255 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
2256 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2258 case AVMEDIA_TYPE_SUBTITLE:
2259 codec->width = icodec->width;
2260 codec->height = icodec->height;
2262 case AVMEDIA_TYPE_DATA:
2263 case AVMEDIA_TYPE_ATTACHMENT:
2270 ost->enc = avcodec_find_encoder(codec->codec_id);
2272 /* should only happen when a default codec is not present. */
2273 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2274 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2275 ret = AVERROR(EINVAL);
2280 ist->decoding_needed++;
2281 ost->encoding_needed = 1;
2284 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2285 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2287 fg = init_simple_filtergraph(ist, ost);
2288 if (configure_filtergraph(fg)) {
2289 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2294 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2295 if (ost->filter && !ost->frame_rate.num)
2296 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2297 if (ist && !ost->frame_rate.num)
2298 ost->frame_rate = ist->framerate;
2299 if (ist && !ost->frame_rate.num)
2300 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2301 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2302 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2303 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2304 ost->frame_rate = ost->enc->supported_framerates[idx];
2308 switch (codec->codec_type) {
2309 case AVMEDIA_TYPE_AUDIO:
2310 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2311 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2312 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2313 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2314 codec->time_base = (AVRational){ 1, codec->sample_rate };
2316 case AVMEDIA_TYPE_VIDEO:
2317 codec->time_base = av_inv_q(ost->frame_rate);
2318 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2319 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2320 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2321 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2322 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2323 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2325 for (j = 0; j < ost->forced_kf_count; j++)
2326 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2330 codec->width = ost->filter->filter->inputs[0]->w;
2331 codec->height = ost->filter->filter->inputs[0]->h;
2332 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2333 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2334 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2335 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2336 if (!strncmp(ost->enc->name, "libx264", 7) &&
2337 codec->pix_fmt == AV_PIX_FMT_NONE &&
2338 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2339 av_log(NULL, AV_LOG_INFO,
2340 "No pixel format specified, %s for H.264 encoding chosen.\n"
2341 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2342 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2343 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2346 codec->width != icodec->width ||
2347 codec->height != icodec->height ||
2348 codec->pix_fmt != icodec->pix_fmt) {
2349 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2352 if (ost->forced_keyframes) {
2353 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2354 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2355 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2357 av_log(NULL, AV_LOG_ERROR,
2358 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2361 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2362 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2363 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2364 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2366 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2370 case AVMEDIA_TYPE_SUBTITLE:
2371 codec->time_base = (AVRational){1, 1000};
2372 if (!codec->width) {
2373 codec->width = input_streams[ost->source_index]->st->codec->width;
2374 codec->height = input_streams[ost->source_index]->st->codec->height;
2382 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2383 char logfilename[1024];
2386 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2387 ost->logfile_prefix ? ost->logfile_prefix :
2388 DEFAULT_PASS_LOGFILENAME_PREFIX,
2390 if (!strcmp(ost->enc->name, "libx264")) {
2391 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2393 if (codec->flags & CODEC_FLAG_PASS2) {
2395 size_t logbuffer_size;
2396 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2397 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2401 codec->stats_in = logbuffer;
2403 if (codec->flags & CODEC_FLAG_PASS1) {
2404 f = fopen(logfilename, "wb");
2406 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2407 logfilename, strerror(errno));
2417 /* open each encoder */
2418 for (i = 0; i < nb_output_streams; i++) {
2419 ost = output_streams[i];
2420 if (ost->encoding_needed) {
2421 AVCodec *codec = ost->enc;
2422 AVCodecContext *dec = NULL;
2424 if ((ist = get_input_stream(ost)))
2425 dec = ist->st->codec;
2426 if (dec && dec->subtitle_header) {
2427 /* ASS code assumes this buffer is null terminated so add extra byte. */
2428 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2429 if (!ost->st->codec->subtitle_header) {
2430 ret = AVERROR(ENOMEM);
2433 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2434 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2436 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2437 av_dict_set(&ost->opts, "threads", "auto", 0);
2438 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2439 if (ret == AVERROR_EXPERIMENTAL)
2440 abort_codec_experimental(codec, 1);
2441 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2442 ost->file_index, ost->index);
2445 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2446 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2447 av_buffersink_set_frame_size(ost->filter->filter,
2448 ost->st->codec->frame_size);
2449 assert_avoptions(ost->opts);
2450 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2451 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2452 " It takes bits/s as argument, not kbits/s\n");
2453 extra_size += ost->st->codec->extradata_size;
2455 if (ost->st->codec->me_threshold)
2456 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2458 av_opt_set_dict(ost->st->codec, &ost->opts);
2462 /* init input streams */
2463 for (i = 0; i < nb_input_streams; i++)
2464 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2465 for (i = 0; i < nb_output_streams; i++) {
2466 ost = output_streams[i];
2467 avcodec_close(ost->st->codec);
2472 /* discard unused programs */
2473 for (i = 0; i < nb_input_files; i++) {
2474 InputFile *ifile = input_files[i];
2475 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2476 AVProgram *p = ifile->ctx->programs[j];
2477 int discard = AVDISCARD_ALL;
2479 for (k = 0; k < p->nb_stream_indexes; k++)
2480 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2481 discard = AVDISCARD_DEFAULT;
2484 p->discard = discard;
2488 /* open files and write file headers */
2489 for (i = 0; i < nb_output_files; i++) {
2490 oc = output_files[i]->ctx;
2491 oc->interrupt_callback = int_cb;
2492 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2494 av_strerror(ret, errbuf, sizeof(errbuf));
2495 snprintf(error, sizeof(error),
2496 "Could not write header for output file #%d "
2497 "(incorrect codec parameters ?): %s",
2499 ret = AVERROR(EINVAL);
2502 // assert_avoptions(output_files[i]->opts);
2503 if (strcmp(oc->oformat->name, "rtp")) {
2509 /* dump the file output parameters - cannot be done before in case
2511 for (i = 0; i < nb_output_files; i++) {
2512 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2515 /* dump the stream mapping */
2516 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2517 for (i = 0; i < nb_input_streams; i++) {
2518 ist = input_streams[i];
2520 for (j = 0; j < ist->nb_filters; j++) {
2521 if (ist->filters[j]->graph->graph_desc) {
2522 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2523 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2524 ist->filters[j]->name);
2525 if (nb_filtergraphs > 1)
2526 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2527 av_log(NULL, AV_LOG_INFO, "\n");
2532 for (i = 0; i < nb_output_streams; i++) {
2533 ost = output_streams[i];
2535 if (ost->attachment_filename) {
2536 /* an attached file */
2537 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2538 ost->attachment_filename, ost->file_index, ost->index);
2542 if (ost->filter && ost->filter->graph->graph_desc) {
2543 /* output from a complex graph */
2544 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2545 if (nb_filtergraphs > 1)
2546 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2548 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2549 ost->index, ost->enc ? ost->enc->name : "?");
2553 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2554 input_streams[ost->source_index]->file_index,
2555 input_streams[ost->source_index]->st->index,
2558 if (ost->sync_ist != input_streams[ost->source_index])
2559 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2560 ost->sync_ist->file_index,
2561 ost->sync_ist->st->index);
2562 if (ost->stream_copy)
2563 av_log(NULL, AV_LOG_INFO, " (copy)");
2565 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2566 input_streams[ost->source_index]->dec->name : "?",
2567 ost->enc ? ost->enc->name : "?");
2568 av_log(NULL, AV_LOG_INFO, "\n");
2572 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2583 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2584 static int need_output(void)
2588 for (i = 0; i < nb_output_streams; i++) {
2589 OutputStream *ost = output_streams[i];
2590 OutputFile *of = output_files[ost->file_index];
2591 AVFormatContext *os = output_files[ost->file_index]->ctx;
2593 if (ost->finished ||
2594 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2596 if (ost->frame_number >= ost->max_frames) {
2598 for (j = 0; j < of->ctx->nb_streams; j++)
2599 close_output_stream(output_streams[of->ost_index + j]);
2610 * Select the output stream to process.
2612 * @return selected output stream, or NULL if none available
2614 static OutputStream *choose_output(void)
2617 int64_t opts_min = INT64_MAX;
2618 OutputStream *ost_min = NULL;
2620 for (i = 0; i < nb_output_streams; i++) {
2621 OutputStream *ost = output_streams[i];
2622 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2624 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2632 static int check_keyboard_interaction(int64_t cur_time)
2635 static int64_t last_time;
2636 if (received_nb_signals)
2637 return AVERROR_EXIT;
2638 /* read_key() returns 0 on EOF */
2639 if(cur_time - last_time >= 100000 && !run_as_daemon){
2641 last_time = cur_time;
2645 return AVERROR_EXIT;
2646 if (key == '+') av_log_set_level(av_log_get_level()+10);
2647 if (key == '-') av_log_set_level(av_log_get_level()-10);
2648 if (key == 's') qp_hist ^= 1;
2651 do_hex_dump = do_pkt_dump = 0;
2652 } else if(do_pkt_dump){
2656 av_log_set_level(AV_LOG_DEBUG);
2658 if (key == 'c' || key == 'C'){
2659 char buf[4096], target[64], command[256], arg[256] = {0};
2662 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2664 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2669 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2670 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2671 target, time, command, arg);
2672 for (i = 0; i < nb_filtergraphs; i++) {
2673 FilterGraph *fg = filtergraphs[i];
2676 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2677 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2678 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2680 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2685 av_log(NULL, AV_LOG_ERROR,
2686 "Parse error, at least 3 arguments were expected, "
2687 "only %d given in string '%s'\n", n, buf);
2690 if (key == 'd' || key == 'D'){
2693 debug = input_streams[0]->st->codec->debug<<1;
2694 if(!debug) debug = 1;
2695 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2698 if(scanf("%d", &debug)!=1)
2699 fprintf(stderr,"error parsing debug value\n");
2700 for(i=0;i<nb_input_streams;i++) {
2701 input_streams[i]->st->codec->debug = debug;
2703 for(i=0;i<nb_output_streams;i++) {
2704 OutputStream *ost = output_streams[i];
2705 ost->st->codec->debug = debug;
2707 if(debug) av_log_set_level(AV_LOG_DEBUG);
2708 fprintf(stderr,"debug=%d\n", debug);
2711 fprintf(stderr, "key function\n"
2712 "? show this help\n"
2713 "+ increase verbosity\n"
2714 "- decrease verbosity\n"
2715 "c Send command to filtergraph\n"
2716 "D cycle through available debug modes\n"
2717 "h dump packets/hex press to cycle through the 3 states\n"
2719 "s Show QP histogram\n"
2726 static void *input_thread(void *arg)
2731 while (!transcoding_finished && ret >= 0) {
2733 ret = av_read_frame(f->ctx, &pkt);
2735 if (ret == AVERROR(EAGAIN)) {
2742 pthread_mutex_lock(&f->fifo_lock);
2743 while (!av_fifo_space(f->fifo))
2744 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2746 av_dup_packet(&pkt);
2747 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2749 pthread_mutex_unlock(&f->fifo_lock);
2756 static void free_input_threads(void)
2760 if (nb_input_files == 1)
2763 transcoding_finished = 1;
2765 for (i = 0; i < nb_input_files; i++) {
2766 InputFile *f = input_files[i];
2769 if (!f->fifo || f->joined)
2772 pthread_mutex_lock(&f->fifo_lock);
2773 while (av_fifo_size(f->fifo)) {
2774 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2775 av_free_packet(&pkt);
2777 pthread_cond_signal(&f->fifo_cond);
2778 pthread_mutex_unlock(&f->fifo_lock);
2780 pthread_join(f->thread, NULL);
2783 while (av_fifo_size(f->fifo)) {
2784 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2785 av_free_packet(&pkt);
2787 av_fifo_free(f->fifo);
2791 static int init_input_threads(void)
2795 if (nb_input_files == 1)
2798 for (i = 0; i < nb_input_files; i++) {
2799 InputFile *f = input_files[i];
2801 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2802 return AVERROR(ENOMEM);
2804 pthread_mutex_init(&f->fifo_lock, NULL);
2805 pthread_cond_init (&f->fifo_cond, NULL);
2807 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2808 return AVERROR(ret);
2813 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2817 pthread_mutex_lock(&f->fifo_lock);
2819 if (av_fifo_size(f->fifo)) {
2820 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2821 pthread_cond_signal(&f->fifo_cond);
2826 ret = AVERROR(EAGAIN);
2829 pthread_mutex_unlock(&f->fifo_lock);
2835 static int get_input_packet(InputFile *f, AVPacket *pkt)
2839 for (i = 0; i < f->nb_streams; i++) {
2840 InputStream *ist = input_streams[f->ist_index + i];
2841 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2842 int64_t now = av_gettime() - ist->start;
2844 return AVERROR(EAGAIN);
2849 if (nb_input_files > 1)
2850 return get_input_packet_mt(f, pkt);
2852 return av_read_frame(f->ctx, pkt);
2855 static int got_eagain(void)
2858 for (i = 0; i < nb_output_streams; i++)
2859 if (output_streams[i]->unavailable)
2864 static void reset_eagain(void)
2867 for (i = 0; i < nb_input_files; i++)
2868 input_files[i]->eagain = 0;
2869 for (i = 0; i < nb_output_streams; i++)
2870 output_streams[i]->unavailable = 0;
2875 * - 0 -- one packet was read and processed
2876 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2877 * this function should be called again
2878 * - AVERROR_EOF -- this function should not be called again
2880 static int process_input(int file_index)
2882 InputFile *ifile = input_files[file_index];
2883 AVFormatContext *is;
2889 ret = get_input_packet(ifile, &pkt);
2891 if (ret == AVERROR(EAGAIN)) {
2896 if (ret != AVERROR_EOF) {
2897 print_error(is->filename, ret);
2901 ifile->eof_reached = 1;
2903 for (i = 0; i < ifile->nb_streams; i++) {
2904 ist = input_streams[ifile->ist_index + i];
2905 if (ist->decoding_needed)
2906 output_packet(ist, NULL);
2908 /* mark all outputs that don't go through lavfi as finished */
2909 for (j = 0; j < nb_output_streams; j++) {
2910 OutputStream *ost = output_streams[j];
2912 if (ost->source_index == ifile->ist_index + i &&
2913 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2914 close_output_stream(ost);
2918 return AVERROR(EAGAIN);
2924 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2925 is->streams[pkt.stream_index]);
2927 /* the following test is needed in case new streams appear
2928 dynamically in stream : we ignore them */
2929 if (pkt.stream_index >= ifile->nb_streams) {
2930 report_new_stream(file_index, &pkt);
2931 goto discard_packet;
2934 ist = input_streams[ifile->ist_index + pkt.stream_index];
2936 goto discard_packet;
2939 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2940 "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",
2941 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2942 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2943 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2944 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2945 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2946 av_ts2str(input_files[ist->file_index]->ts_offset),
2947 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2950 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2951 int64_t stime, stime2;
2952 // Correcting starttime based on the enabled streams
2953 // 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.
2954 // so we instead do it here as part of discontinuity handling
2955 if ( ist->next_dts == AV_NOPTS_VALUE
2956 && ifile->ts_offset == -is->start_time
2957 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2958 int64_t new_start_time = INT64_MAX;
2959 for (i=0; i<is->nb_streams; i++) {
2960 AVStream *st = is->streams[i];
2961 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2963 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2965 if (new_start_time > is->start_time) {
2966 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2967 ifile->ts_offset = -new_start_time;
2971 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2972 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2973 ist->wrap_correction_done = 1;
2975 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2976 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2977 ist->wrap_correction_done = 0;
2979 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2980 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2981 ist->wrap_correction_done = 0;
2985 if (pkt.dts != AV_NOPTS_VALUE)
2986 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2987 if (pkt.pts != AV_NOPTS_VALUE)
2988 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2990 if (pkt.pts != AV_NOPTS_VALUE)
2991 pkt.pts *= ist->ts_scale;
2992 if (pkt.dts != AV_NOPTS_VALUE)
2993 pkt.dts *= ist->ts_scale;
2995 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
2996 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
2997 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2998 int64_t delta = pkt_dts - ifile->last_ts;
2999 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3000 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3001 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3002 ifile->ts_offset -= delta;
3003 av_log(NULL, AV_LOG_DEBUG,
3004 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3005 delta, ifile->ts_offset);
3006 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3007 if (pkt.pts != AV_NOPTS_VALUE)
3008 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3012 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3014 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3015 int64_t delta = pkt_dts - ist->next_dts;
3016 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3017 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3018 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3019 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3020 pkt_dts+1<ist->pts){
3021 ifile->ts_offset -= delta;
3022 av_log(NULL, AV_LOG_DEBUG,
3023 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3024 delta, ifile->ts_offset);
3025 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3026 if (pkt.pts != AV_NOPTS_VALUE)
3027 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3030 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3031 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3033 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3034 pkt.dts = AV_NOPTS_VALUE;
3036 if (pkt.pts != AV_NOPTS_VALUE){
3037 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3038 delta = pkt_pts - ist->next_dts;
3039 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3040 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3042 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3043 pkt.pts = AV_NOPTS_VALUE;
3049 if (pkt.dts != AV_NOPTS_VALUE)
3050 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3053 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",
3054 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3055 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3056 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3057 av_ts2str(input_files[ist->file_index]->ts_offset),
3058 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3061 sub2video_heartbeat(ist, pkt.pts);
3063 ret = output_packet(ist, &pkt);
3066 av_strerror(ret, buf, sizeof(buf));
3067 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3068 ist->file_index, ist->st->index, buf);
3074 av_free_packet(&pkt);
3080 * Perform a step of transcoding for the specified filter graph.
3082 * @param[in] graph filter graph to consider
3083 * @param[out] best_ist input stream where a frame would allow to continue
3084 * @return 0 for success, <0 for error
3086 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3089 int nb_requests, nb_requests_max = 0;
3090 InputFilter *ifilter;
3094 ret = avfilter_graph_request_oldest(graph->graph);
3096 return reap_filters();
3098 if (ret == AVERROR_EOF) {
3099 ret = reap_filters();
3100 for (i = 0; i < graph->nb_outputs; i++)
3101 close_output_stream(graph->outputs[i]->ost);
3104 if (ret != AVERROR(EAGAIN))
3107 for (i = 0; i < graph->nb_inputs; i++) {
3108 ifilter = graph->inputs[i];
3110 if (input_files[ist->file_index]->eagain ||
3111 input_files[ist->file_index]->eof_reached)
3113 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3114 if (nb_requests > nb_requests_max) {
3115 nb_requests_max = nb_requests;
3121 for (i = 0; i < graph->nb_outputs; i++)
3122 graph->outputs[i]->ost->unavailable = 1;
3128 * Run a single step of transcoding.
3130 * @return 0 for success, <0 for error
3132 static int transcode_step(void)
3138 ost = choose_output();
3145 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3150 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3155 av_assert0(ost->source_index >= 0);
3156 ist = input_streams[ost->source_index];
3159 ret = process_input(ist->file_index);
3160 if (ret == AVERROR(EAGAIN)) {
3161 if (input_files[ist->file_index]->eagain)
3162 ost->unavailable = 1;
3166 return ret == AVERROR_EOF ? 0 : ret;
3168 return reap_filters();
3172 * The following code is the main loop of the file converter
3174 static int transcode(void)
3177 AVFormatContext *os;
3180 int64_t timer_start;
3182 ret = transcode_init();
3186 if (stdin_interaction) {
3187 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3190 timer_start = av_gettime();
3193 if ((ret = init_input_threads()) < 0)
3197 while (!received_sigterm) {
3198 int64_t cur_time= av_gettime();
3200 /* if 'q' pressed, exits */
3201 if (stdin_interaction)
3202 if (check_keyboard_interaction(cur_time) < 0)
3205 /* check if there's any stream where output is still needed */
3206 if (!need_output()) {
3207 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3211 ret = transcode_step();
3213 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3216 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3220 /* dump report by using the output first video and audio streams */
3221 print_report(0, timer_start, cur_time);
3224 free_input_threads();
3227 /* at the end of stream, we must flush the decoder buffers */
3228 for (i = 0; i < nb_input_streams; i++) {
3229 ist = input_streams[i];
3230 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3231 output_packet(ist, NULL);
3238 /* write the trailer if needed and close file */
3239 for (i = 0; i < nb_output_files; i++) {
3240 os = output_files[i]->ctx;
3241 av_write_trailer(os);
3244 /* dump report by using the first video and audio streams */
3245 print_report(1, timer_start, av_gettime());
3247 /* close each encoder */
3248 for (i = 0; i < nb_output_streams; i++) {
3249 ost = output_streams[i];
3250 if (ost->encoding_needed) {
3251 av_freep(&ost->st->codec->stats_in);
3252 avcodec_close(ost->st->codec);
3256 /* close each decoder */
3257 for (i = 0; i < nb_input_streams; i++) {
3258 ist = input_streams[i];
3259 if (ist->decoding_needed) {
3260 avcodec_close(ist->st->codec);
3269 free_input_threads();
3272 if (output_streams) {
3273 for (i = 0; i < nb_output_streams; i++) {
3274 ost = output_streams[i];
3276 if (ost->stream_copy)
3277 av_freep(&ost->st->codec->extradata);
3279 fclose(ost->logfile);
3280 ost->logfile = NULL;
3282 av_freep(&ost->st->codec->subtitle_header);
3283 av_freep(&ost->forced_kf_pts);
3284 av_freep(&ost->apad);
3285 av_dict_free(&ost->opts);
3286 av_dict_free(&ost->swr_opts);
3287 av_dict_free(&ost->resample_opts);
3295 static int64_t getutime(void)
3298 struct rusage rusage;
3300 getrusage(RUSAGE_SELF, &rusage);
3301 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3302 #elif HAVE_GETPROCESSTIMES
3304 FILETIME c, e, k, u;
3305 proc = GetCurrentProcess();
3306 GetProcessTimes(proc, &c, &e, &k, &u);
3307 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3309 return av_gettime();
3313 static int64_t getmaxrss(void)
3315 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3316 struct rusage rusage;
3317 getrusage(RUSAGE_SELF, &rusage);
3318 return (int64_t)rusage.ru_maxrss * 1024;
3319 #elif HAVE_GETPROCESSMEMORYINFO
3321 PROCESS_MEMORY_COUNTERS memcounters;
3322 proc = GetCurrentProcess();
3323 memcounters.cb = sizeof(memcounters);
3324 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3325 return memcounters.PeakPagefileUsage;
3331 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3335 int main(int argc, char **argv)
3340 atexit(exit_program);
3342 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3344 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3345 parse_loglevel(argc, argv, options);
3347 if(argc>1 && !strcmp(argv[1], "-d")){
3349 av_log_set_callback(log_callback_null);
3354 avcodec_register_all();
3356 avdevice_register_all();
3358 avfilter_register_all();
3360 avformat_network_init();
3362 show_banner(argc, argv, options);
3366 /* parse options and open all input/output files */
3367 ret = ffmpeg_parse_options(argc, argv);
3371 if (nb_output_files <= 0 && nb_input_files == 0) {
3373 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3377 /* file converter / grab */
3378 if (nb_output_files <= 0) {
3379 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3383 // if (nb_input_files == 0) {
3384 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3388 current_time = ti = getutime();
3389 if (transcode() < 0)
3391 ti = getutime() - ti;
3393 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3395 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3396 decode_error_stat[0], decode_error_stat[1]);
3397 if (2*decode_error_stat[0] < decode_error_stat[1])
3400 exit(received_nb_signals ? 255 : 0);