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) {
338 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
339 |INLCR|IGNCR|ICRNL|IXON);
340 tty.c_oflag |= OPOST;
341 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
342 tty.c_cflag &= ~(CSIZE|PARENB);
347 tcsetattr (0, TCSANOW, &tty);
349 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
352 avformat_network_deinit();
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
357 signal(SIGXCPU, sigterm_handler);
361 /* read a key without blocking */
362 static int read_key(void)
374 n = select(1, &rfds, NULL, NULL, &tv);
383 # if HAVE_PEEKNAMEDPIPE
385 static HANDLE input_handle;
388 input_handle = GetStdHandle(STD_INPUT_HANDLE);
389 is_pipe = !GetConsoleMode(input_handle, &dw);
392 if (stdin->_cnt > 0) {
397 /* When running under a GUI, you will end here. */
398 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
399 // input pipe may have been closed by the program that ran ffmpeg
417 static int decode_interrupt_cb(void *ctx)
419 return received_nb_signals > 1;
422 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
424 static void ffmpeg_cleanup(int ret)
429 int maxrss = getmaxrss() / 1024;
430 printf("bench: maxrss=%ikB\n", maxrss);
433 for (i = 0; i < nb_filtergraphs; i++) {
434 avfilter_graph_free(&filtergraphs[i]->graph);
435 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
436 av_freep(&filtergraphs[i]->inputs[j]->name);
437 av_freep(&filtergraphs[i]->inputs[j]);
439 av_freep(&filtergraphs[i]->inputs);
440 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
441 av_freep(&filtergraphs[i]->outputs[j]->name);
442 av_freep(&filtergraphs[i]->outputs[j]);
444 av_freep(&filtergraphs[i]->outputs);
445 av_freep(&filtergraphs[i]->graph_desc);
446 av_freep(&filtergraphs[i]);
448 av_freep(&filtergraphs);
450 av_freep(&subtitle_out);
453 for (i = 0; i < nb_output_files; i++) {
454 AVFormatContext *s = output_files[i]->ctx;
455 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
457 avformat_free_context(s);
458 av_dict_free(&output_files[i]->opts);
459 av_freep(&output_files[i]);
461 for (i = 0; i < nb_output_streams; i++) {
462 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
464 AVBitStreamFilterContext *next = bsfc->next;
465 av_bitstream_filter_close(bsfc);
468 output_streams[i]->bitstream_filters = NULL;
469 avcodec_free_frame(&output_streams[i]->filtered_frame);
471 av_parser_close(output_streams[i]->parser);
473 av_freep(&output_streams[i]->forced_keyframes);
474 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
475 av_freep(&output_streams[i]->avfilter);
476 av_freep(&output_streams[i]->logfile_prefix);
477 av_freep(&output_streams[i]);
480 free_input_threads();
482 for (i = 0; i < nb_input_files; i++) {
483 avformat_close_input(&input_files[i]->ctx);
484 av_freep(&input_files[i]);
486 for (i = 0; i < nb_input_streams; i++) {
487 av_frame_free(&input_streams[i]->decoded_frame);
488 av_frame_free(&input_streams[i]->filter_frame);
489 av_dict_free(&input_streams[i]->opts);
490 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
491 av_frame_free(&input_streams[i]->sub2video.frame);
492 av_freep(&input_streams[i]->filters);
493 av_freep(&input_streams[i]);
498 av_free(vstats_filename);
500 av_freep(&input_streams);
501 av_freep(&input_files);
502 av_freep(&output_streams);
503 av_freep(&output_files);
507 avformat_network_deinit();
509 if (received_sigterm) {
510 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
511 (int) received_sigterm);
516 void assert_avoptions(AVDictionary *m)
518 AVDictionaryEntry *t;
519 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
520 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
525 static void abort_codec_experimental(AVCodec *c, int encoder)
530 static void update_benchmark(const char *fmt, ...)
532 if (do_benchmark_all) {
533 int64_t t = getutime();
539 vsnprintf(buf, sizeof(buf), fmt, va);
541 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
547 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
549 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
550 AVCodecContext *avctx = ost->st->codec;
553 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
554 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
555 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
558 * Audio encoders may split the packets -- #frames in != #packets out.
559 * But there is no reordering, so we can limit the number of output packets
560 * by simply dropping them here.
561 * Counting encoded video frames needs to be done separately because of
562 * reordering, see do_video_out()
564 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
565 if (ost->frame_number >= ost->max_frames) {
573 AVPacket new_pkt = *pkt;
574 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
575 &new_pkt.data, &new_pkt.size,
576 pkt->data, pkt->size,
577 pkt->flags & AV_PKT_FLAG_KEY);
578 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
579 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
581 memcpy(t, new_pkt.data, new_pkt.size);
582 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
591 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
592 av_buffer_default_free, NULL, 0);
596 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
597 bsfc->filter->name, pkt->stream_index,
598 avctx->codec ? avctx->codec->name : "copy");
608 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
609 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
610 pkt->dts != AV_NOPTS_VALUE &&
611 ost->last_mux_dts != AV_NOPTS_VALUE) {
612 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
613 if (pkt->dts < max) {
614 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
615 av_log(s, loglevel, "Non-monotonous DTS in output stream "
616 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
617 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
619 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
622 av_log(s, loglevel, "changing to %"PRId64". This may result "
623 "in incorrect timestamps in the output file.\n",
625 if(pkt->pts >= pkt->dts)
626 pkt->pts = FFMAX(pkt->pts, max);
630 ost->last_mux_dts = pkt->dts;
632 pkt->stream_index = ost->index;
635 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
636 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
637 av_get_media_type_string(ost->st->codec->codec_type),
638 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
639 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
644 ret = av_interleaved_write_frame(s, pkt);
646 print_error("av_interleaved_write_frame()", ret);
651 static void close_output_stream(OutputStream *ost)
653 OutputFile *of = output_files[ost->file_index];
657 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
658 of->recording_time = FFMIN(of->recording_time, end);
662 static int check_recording_time(OutputStream *ost)
664 OutputFile *of = output_files[ost->file_index];
666 if (of->recording_time != INT64_MAX &&
667 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
668 AV_TIME_BASE_Q) >= 0) {
669 close_output_stream(ost);
675 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
678 AVCodecContext *enc = ost->st->codec;
682 av_init_packet(&pkt);
686 if (!check_recording_time(ost))
689 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
690 frame->pts = ost->sync_opts;
691 ost->sync_opts = frame->pts + frame->nb_samples;
693 av_assert0(pkt.size || !pkt.data);
694 update_benchmark(NULL);
695 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
696 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
699 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
702 if (pkt.pts != AV_NOPTS_VALUE)
703 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
704 if (pkt.dts != AV_NOPTS_VALUE)
705 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
706 if (pkt.duration > 0)
707 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
710 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
711 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
712 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
713 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
716 audio_size += pkt.size;
717 write_frame(s, &pkt, ost);
719 av_free_packet(&pkt);
723 static void do_subtitle_out(AVFormatContext *s,
728 int subtitle_out_max_size = 1024 * 1024;
729 int subtitle_out_size, nb, i;
734 if (sub->pts == AV_NOPTS_VALUE) {
735 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
741 enc = ost->st->codec;
744 subtitle_out = av_malloc(subtitle_out_max_size);
747 /* Note: DVB subtitle need one packet to draw them and one other
748 packet to clear them */
749 /* XXX: signal it in the codec context ? */
750 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
755 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
757 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
758 pts -= output_files[ost->file_index]->start_time;
759 for (i = 0; i < nb; i++) {
760 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
761 if (!check_recording_time(ost))
765 // start_display_time is required to be 0
766 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
767 sub->end_display_time -= sub->start_display_time;
768 sub->start_display_time = 0;
771 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
772 subtitle_out_max_size, sub);
773 if (subtitle_out_size < 0) {
774 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
778 av_init_packet(&pkt);
779 pkt.data = subtitle_out;
780 pkt.size = subtitle_out_size;
781 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
782 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
783 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
784 /* XXX: the pts correction is handled here. Maybe handling
785 it in the codec would be better */
787 pkt.pts += 90 * sub->start_display_time;
789 pkt.pts += 90 * sub->end_display_time;
791 subtitle_size += pkt.size;
792 write_frame(s, &pkt, ost);
796 static void do_video_out(AVFormatContext *s,
800 int ret, format_video_sync;
802 AVCodecContext *enc = ost->st->codec;
804 double sync_ipts, delta;
807 InputStream *ist = NULL;
809 if (ost->source_index >= 0)
810 ist = input_streams[ost->source_index];
812 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
813 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
815 sync_ipts = in_picture->pts;
816 delta = sync_ipts - ost->sync_opts + duration;
818 /* by default, we output a single frame */
821 format_video_sync = video_sync_method;
822 if (format_video_sync == VSYNC_AUTO) {
823 if(!strcmp(s->oformat->name, "avi")) {
824 format_video_sync = VSYNC_VFR;
826 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
829 switch (format_video_sync) {
831 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
834 else if (delta > 1.1)
835 nb_frames = lrintf(delta);
840 else if (delta > 0.6)
841 ost->sync_opts = lrint(sync_ipts);
844 case VSYNC_PASSTHROUGH:
845 ost->sync_opts = lrint(sync_ipts);
851 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
852 if (nb_frames == 0) {
854 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
856 } else if (nb_frames > 1) {
857 if (nb_frames > dts_error_threshold * 30) {
858 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
862 nb_frames_dup += nb_frames - 1;
863 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
866 /* duplicates frame if needed */
867 for (i = 0; i < nb_frames; i++) {
868 av_init_packet(&pkt);
872 in_picture->pts = ost->sync_opts;
875 if (!check_recording_time(ost))
877 if (ost->frame_number >= ost->max_frames)
881 if (s->oformat->flags & AVFMT_RAWPICTURE &&
882 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
883 /* raw pictures are written as AVPicture structure to
884 avoid any copies. We support temporarily the older
886 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
887 enc->coded_frame->top_field_first = in_picture->top_field_first;
888 if (enc->coded_frame->interlaced_frame)
889 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
891 enc->field_order = AV_FIELD_PROGRESSIVE;
892 pkt.data = (uint8_t *)in_picture;
893 pkt.size = sizeof(AVPicture);
894 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
895 pkt.flags |= AV_PKT_FLAG_KEY;
897 video_size += pkt.size;
898 write_frame(s, &pkt, ost);
900 int got_packet, forced_keyframe = 0;
903 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
904 ost->top_field_first >= 0)
905 in_picture->top_field_first = !!ost->top_field_first;
907 if (in_picture->interlaced_frame) {
908 if (enc->codec->id == AV_CODEC_ID_MJPEG)
909 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
911 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
913 enc->field_order = AV_FIELD_PROGRESSIVE;
915 in_picture->quality = ost->st->codec->global_quality;
916 if (!enc->me_threshold)
917 in_picture->pict_type = 0;
919 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
920 in_picture->pts * av_q2d(enc->time_base) : NAN;
921 if (ost->forced_kf_index < ost->forced_kf_count &&
922 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
923 ost->forced_kf_index++;
925 } else if (ost->forced_keyframes_pexpr) {
927 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
928 res = av_expr_eval(ost->forced_keyframes_pexpr,
929 ost->forced_keyframes_expr_const_values, NULL);
930 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
931 ost->forced_keyframes_expr_const_values[FKF_N],
932 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
933 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
934 ost->forced_keyframes_expr_const_values[FKF_T],
935 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
939 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
940 ost->forced_keyframes_expr_const_values[FKF_N];
941 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
942 ost->forced_keyframes_expr_const_values[FKF_T];
943 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
946 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
948 if (forced_keyframe) {
949 in_picture->pict_type = AV_PICTURE_TYPE_I;
950 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
953 update_benchmark(NULL);
954 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
955 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
957 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
962 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
963 pkt.pts = ost->sync_opts;
965 if (pkt.pts != AV_NOPTS_VALUE)
966 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
967 if (pkt.dts != AV_NOPTS_VALUE)
968 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
971 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
972 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
973 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
974 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
977 frame_size = pkt.size;
978 video_size += pkt.size;
979 write_frame(s, &pkt, ost);
980 av_free_packet(&pkt);
982 /* if two pass, output log */
983 if (ost->logfile && enc->stats_out) {
984 fprintf(ost->logfile, "%s", enc->stats_out);
990 * For video, number of frames in == number of packets out.
991 * But there may be reordering, so we can't throw away frames on encoder
992 * flush, we need to limit them here, before they go into encoder.
996 if (vstats_filename && frame_size)
997 do_video_stats(ost, frame_size);
1001 static double psnr(double d)
1003 return -10.0 * log(d) / log(10.0);
1006 static void do_video_stats(OutputStream *ost, int frame_size)
1008 AVCodecContext *enc;
1010 double ti1, bitrate, avg_bitrate;
1012 /* this is executed just the first time do_video_stats is called */
1014 vstats_file = fopen(vstats_filename, "w");
1021 enc = ost->st->codec;
1022 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1023 frame_number = ost->st->nb_frames;
1024 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1025 if (enc->flags&CODEC_FLAG_PSNR)
1026 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1028 fprintf(vstats_file,"f_size= %6d ", frame_size);
1029 /* compute pts value */
1030 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1034 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1035 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1036 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1037 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1038 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1043 * Get and encode new output from any of the filtergraphs, without causing
1046 * @return 0 for success, <0 for severe errors
1048 static int reap_filters(void)
1050 AVFrame *filtered_frame = NULL;
1054 /* Reap all buffers present in the buffer sinks */
1055 for (i = 0; i < nb_output_streams; i++) {
1056 OutputStream *ost = output_streams[i];
1057 OutputFile *of = output_files[ost->file_index];
1063 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1064 return AVERROR(ENOMEM);
1066 avcodec_get_frame_defaults(ost->filtered_frame);
1067 filtered_frame = ost->filtered_frame;
1070 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1071 AV_BUFFERSINK_FLAG_NO_REQUEST);
1073 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1074 av_log(NULL, AV_LOG_WARNING,
1075 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1079 frame_pts = AV_NOPTS_VALUE;
1080 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1081 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1082 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1083 ost->filter->filter->inputs[0]->time_base,
1084 ost->st->codec->time_base) -
1085 av_rescale_q(start_time,
1087 ost->st->codec->time_base);
1089 //if (ost->source_index >= 0)
1090 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1093 switch (ost->filter->filter->inputs[0]->type) {
1094 case AVMEDIA_TYPE_VIDEO:
1095 filtered_frame->pts = frame_pts;
1096 if (!ost->frame_aspect_ratio.num)
1097 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1099 do_video_out(of->ctx, ost, filtered_frame);
1101 case AVMEDIA_TYPE_AUDIO:
1102 filtered_frame->pts = frame_pts;
1103 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1104 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1105 av_log(NULL, AV_LOG_ERROR,
1106 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1109 do_audio_out(of->ctx, ost, filtered_frame);
1112 // TODO support subtitle filters
1116 av_frame_unref(filtered_frame);
1123 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1126 AVBPrint buf_script;
1128 AVFormatContext *oc;
1130 AVCodecContext *enc;
1131 int frame_number, vid, i;
1133 int64_t pts = INT64_MIN;
1134 static int64_t last_time = -1;
1135 static int qp_histogram[52];
1136 int hours, mins, secs, us;
1138 if (!print_stats && !is_last_report && !progress_avio)
1141 if (!is_last_report) {
1142 if (last_time == -1) {
1143 last_time = cur_time;
1146 if ((cur_time - last_time) < 500000)
1148 last_time = cur_time;
1152 oc = output_files[0]->ctx;
1154 total_size = avio_size(oc->pb);
1155 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1156 total_size = avio_tell(oc->pb);
1160 av_bprint_init(&buf_script, 0, 1);
1161 for (i = 0; i < nb_output_streams; i++) {
1163 ost = output_streams[i];
1164 enc = ost->st->codec;
1165 if (!ost->stream_copy && enc->coded_frame)
1166 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1167 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1168 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1169 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1170 ost->file_index, ost->index, q);
1172 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1173 float fps, t = (cur_time-timer_start) / 1000000.0;
1175 frame_number = ost->frame_number;
1176 fps = t > 1 ? frame_number / t : 0;
1177 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1178 frame_number, fps < 9.95, fps, q);
1179 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1180 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1181 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1182 ost->file_index, ost->index, q);
1184 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1188 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1190 for (j = 0; j < 32; j++)
1191 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1193 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1195 double error, error_sum = 0;
1196 double scale, scale_sum = 0;
1198 char type[3] = { 'Y','U','V' };
1199 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1200 for (j = 0; j < 3; j++) {
1201 if (is_last_report) {
1202 error = enc->error[j];
1203 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1205 error = enc->coded_frame->error[j];
1206 scale = enc->width * enc->height * 255.0 * 255.0;
1212 p = psnr(error / scale);
1213 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1214 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1215 ost->file_index, ost->index, type[j] | 32, p);
1217 p = psnr(error_sum / scale_sum);
1218 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1219 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1220 ost->file_index, ost->index, p);
1224 /* compute min output value */
1225 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1226 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1227 ost->st->time_base, AV_TIME_BASE_Q));
1230 secs = pts / AV_TIME_BASE;
1231 us = pts % AV_TIME_BASE;
1237 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1239 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1241 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1242 "size=%8.0fkB time=", total_size / 1024.0);
1243 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1244 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1245 (100 * us) / AV_TIME_BASE);
1246 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1248 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1249 "bitrate=%6.1fkbits/s", bitrate);
1250 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1251 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1252 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1253 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1254 hours, mins, secs, us);
1256 if (nb_frames_dup || nb_frames_drop)
1257 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1258 nb_frames_dup, nb_frames_drop);
1259 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1260 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1262 if (print_stats || is_last_report) {
1263 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1264 fprintf(stderr, "%s \r", buf);
1266 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1271 if (progress_avio) {
1272 av_bprintf(&buf_script, "progress=%s\n",
1273 is_last_report ? "end" : "continue");
1274 avio_write(progress_avio, buf_script.str,
1275 FFMIN(buf_script.len, buf_script.size - 1));
1276 avio_flush(progress_avio);
1277 av_bprint_finalize(&buf_script, NULL);
1278 if (is_last_report) {
1279 avio_close(progress_avio);
1280 progress_avio = NULL;
1284 if (is_last_report) {
1285 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1286 av_log(NULL, AV_LOG_INFO, "\n");
1287 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1288 video_size / 1024.0,
1289 audio_size / 1024.0,
1290 subtitle_size / 1024.0,
1291 extra_size / 1024.0,
1292 100.0 * (total_size - raw) / raw
1294 if(video_size + audio_size + subtitle_size + extra_size == 0){
1295 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1300 static void flush_encoders(void)
1304 for (i = 0; i < nb_output_streams; i++) {
1305 OutputStream *ost = output_streams[i];
1306 AVCodecContext *enc = ost->st->codec;
1307 AVFormatContext *os = output_files[ost->file_index]->ctx;
1308 int stop_encoding = 0;
1310 if (!ost->encoding_needed)
1313 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1315 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1319 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1323 switch (ost->st->codec->codec_type) {
1324 case AVMEDIA_TYPE_AUDIO:
1325 encode = avcodec_encode_audio2;
1329 case AVMEDIA_TYPE_VIDEO:
1330 encode = avcodec_encode_video2;
1341 av_init_packet(&pkt);
1345 update_benchmark(NULL);
1346 ret = encode(enc, &pkt, NULL, &got_packet);
1347 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1349 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1353 if (ost->logfile && enc->stats_out) {
1354 fprintf(ost->logfile, "%s", enc->stats_out);
1360 if (pkt.pts != AV_NOPTS_VALUE)
1361 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1362 if (pkt.dts != AV_NOPTS_VALUE)
1363 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1364 if (pkt.duration > 0)
1365 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1366 write_frame(os, &pkt, ost);
1367 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1368 do_video_stats(ost, pkt.size);
1379 * Check whether a packet from ist should be written into ost at this time
1381 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1383 OutputFile *of = output_files[ost->file_index];
1384 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1386 if (ost->source_index != ist_index)
1389 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1395 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1397 OutputFile *of = output_files[ost->file_index];
1398 InputFile *f = input_files [ist->file_index];
1399 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1400 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1401 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1405 av_init_packet(&opkt);
1407 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1408 !ost->copy_initial_nonkeyframes)
1411 if (pkt->pts == AV_NOPTS_VALUE) {
1412 if (!ost->frame_number && ist->pts < start_time &&
1413 !ost->copy_prior_start)
1416 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1417 !ost->copy_prior_start)
1421 if (of->recording_time != INT64_MAX &&
1422 ist->pts >= of->recording_time + start_time) {
1423 close_output_stream(ost);
1427 if (f->recording_time != INT64_MAX) {
1428 start_time = f->ctx->start_time;
1429 if (f->start_time != AV_NOPTS_VALUE)
1430 start_time += f->start_time;
1431 if (ist->pts >= f->recording_time + start_time) {
1432 close_output_stream(ost);
1437 /* force the input stream PTS */
1438 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1439 audio_size += pkt->size;
1440 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1441 video_size += pkt->size;
1443 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1444 subtitle_size += pkt->size;
1447 if (pkt->pts != AV_NOPTS_VALUE)
1448 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1450 opkt.pts = AV_NOPTS_VALUE;
1452 if (pkt->dts == AV_NOPTS_VALUE)
1453 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1455 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1456 opkt.dts -= ost_tb_start_time;
1458 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1459 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1461 duration = ist->st->codec->frame_size;
1462 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1463 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1464 ost->st->time_base) - ost_tb_start_time;
1467 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1468 opkt.flags = pkt->flags;
1470 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1471 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1472 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1473 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1474 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1476 if (av_parser_change(ost->parser, ost->st->codec,
1477 &opkt.data, &opkt.size,
1478 pkt->data, pkt->size,
1479 pkt->flags & AV_PKT_FLAG_KEY)) {
1480 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1485 opkt.data = pkt->data;
1486 opkt.size = pkt->size;
1489 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1490 /* store AVPicture in AVPacket, as expected by the output format */
1491 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1492 opkt.data = (uint8_t *)&pict;
1493 opkt.size = sizeof(AVPicture);
1494 opkt.flags |= AV_PKT_FLAG_KEY;
1497 write_frame(of->ctx, &opkt, ost);
1498 ost->st->codec->frame_number++;
1501 int guess_input_channel_layout(InputStream *ist)
1503 AVCodecContext *dec = ist->st->codec;
1505 if (!dec->channel_layout) {
1506 char layout_name[256];
1508 if (dec->channels > ist->guess_layout_max)
1510 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1511 if (!dec->channel_layout)
1513 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1514 dec->channels, dec->channel_layout);
1515 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1516 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1521 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1523 AVFrame *decoded_frame, *f;
1524 AVCodecContext *avctx = ist->st->codec;
1525 int i, ret, err = 0, resample_changed;
1526 AVRational decoded_frame_tb;
1528 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1529 return AVERROR(ENOMEM);
1530 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1531 return AVERROR(ENOMEM);
1532 decoded_frame = ist->decoded_frame;
1534 update_benchmark(NULL);
1535 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1536 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1538 if (ret >= 0 && avctx->sample_rate <= 0) {
1539 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1540 ret = AVERROR_INVALIDDATA;
1543 if (*got_output || ret<0 || pkt->size)
1544 decode_error_stat[ret<0] ++;
1546 if (!*got_output || ret < 0) {
1548 for (i = 0; i < ist->nb_filters; i++)
1550 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1552 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1559 /* increment next_dts to use for the case where the input stream does not
1560 have timestamps or there are multiple frames in the packet */
1561 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1563 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1567 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1568 ist->resample_channels != avctx->channels ||
1569 ist->resample_channel_layout != decoded_frame->channel_layout ||
1570 ist->resample_sample_rate != decoded_frame->sample_rate;
1571 if (resample_changed) {
1572 char layout1[64], layout2[64];
1574 if (!guess_input_channel_layout(ist)) {
1575 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1576 "layout for Input Stream #%d.%d\n", ist->file_index,
1580 decoded_frame->channel_layout = avctx->channel_layout;
1582 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1583 ist->resample_channel_layout);
1584 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1585 decoded_frame->channel_layout);
1587 av_log(NULL, AV_LOG_INFO,
1588 "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",
1589 ist->file_index, ist->st->index,
1590 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1591 ist->resample_channels, layout1,
1592 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1593 avctx->channels, layout2);
1595 ist->resample_sample_fmt = decoded_frame->format;
1596 ist->resample_sample_rate = decoded_frame->sample_rate;
1597 ist->resample_channel_layout = decoded_frame->channel_layout;
1598 ist->resample_channels = avctx->channels;
1600 for (i = 0; i < nb_filtergraphs; i++)
1601 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1602 FilterGraph *fg = filtergraphs[i];
1604 if (configure_filtergraph(fg) < 0) {
1605 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1608 for (j = 0; j < fg->nb_outputs; j++) {
1609 OutputStream *ost = fg->outputs[j]->ost;
1610 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1611 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1612 av_buffersink_set_frame_size(ost->filter->filter,
1613 ost->st->codec->frame_size);
1618 /* if the decoder provides a pts, use it instead of the last packet pts.
1619 the decoder could be delaying output by a packet or more. */
1620 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1621 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1622 decoded_frame_tb = avctx->time_base;
1623 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1624 decoded_frame->pts = decoded_frame->pkt_pts;
1625 pkt->pts = AV_NOPTS_VALUE;
1626 decoded_frame_tb = ist->st->time_base;
1627 } else if (pkt->pts != AV_NOPTS_VALUE) {
1628 decoded_frame->pts = pkt->pts;
1629 pkt->pts = AV_NOPTS_VALUE;
1630 decoded_frame_tb = ist->st->time_base;
1632 decoded_frame->pts = ist->dts;
1633 decoded_frame_tb = AV_TIME_BASE_Q;
1635 if (decoded_frame->pts != AV_NOPTS_VALUE)
1636 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1637 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1638 (AVRational){1, ist->st->codec->sample_rate});
1639 for (i = 0; i < ist->nb_filters; i++) {
1640 if (i < ist->nb_filters - 1) {
1641 f = ist->filter_frame;
1642 err = av_frame_ref(f, decoded_frame);
1647 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1648 AV_BUFFERSRC_FLAG_PUSH);
1649 if (err == AVERROR_EOF)
1650 err = 0; /* ignore */
1654 decoded_frame->pts = AV_NOPTS_VALUE;
1656 av_frame_unref(ist->filter_frame);
1657 av_frame_unref(decoded_frame);
1658 return err < 0 ? err : ret;
1661 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1663 AVFrame *decoded_frame, *f;
1664 int i, ret = 0, err = 0, resample_changed;
1665 int64_t best_effort_timestamp;
1666 AVRational *frame_sample_aspect;
1668 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1669 return AVERROR(ENOMEM);
1670 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1671 return AVERROR(ENOMEM);
1672 decoded_frame = ist->decoded_frame;
1673 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1675 update_benchmark(NULL);
1676 ret = avcodec_decode_video2(ist->st->codec,
1677 decoded_frame, got_output, pkt);
1678 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1680 if (*got_output || ret<0 || pkt->size)
1681 decode_error_stat[ret<0] ++;
1683 if (!*got_output || ret < 0) {
1685 for (i = 0; i < ist->nb_filters; i++)
1687 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1689 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1695 if(ist->top_field_first>=0)
1696 decoded_frame->top_field_first = ist->top_field_first;
1698 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1699 if(best_effort_timestamp != AV_NOPTS_VALUE)
1700 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1703 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1704 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1705 ist->st->index, av_ts2str(decoded_frame->pts),
1706 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1707 best_effort_timestamp,
1708 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1709 decoded_frame->key_frame, decoded_frame->pict_type);
1714 if (ist->st->sample_aspect_ratio.num)
1715 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1717 resample_changed = ist->resample_width != decoded_frame->width ||
1718 ist->resample_height != decoded_frame->height ||
1719 ist->resample_pix_fmt != decoded_frame->format;
1720 if (resample_changed) {
1721 av_log(NULL, AV_LOG_INFO,
1722 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1723 ist->file_index, ist->st->index,
1724 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1725 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1727 ist->resample_width = decoded_frame->width;
1728 ist->resample_height = decoded_frame->height;
1729 ist->resample_pix_fmt = decoded_frame->format;
1731 for (i = 0; i < nb_filtergraphs; i++) {
1732 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1733 configure_filtergraph(filtergraphs[i]) < 0) {
1734 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1740 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1741 for (i = 0; i < ist->nb_filters; i++) {
1742 if (!frame_sample_aspect->num)
1743 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1745 if (i < ist->nb_filters - 1) {
1746 f = ist->filter_frame;
1747 err = av_frame_ref(f, decoded_frame);
1752 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1753 if (ret == AVERROR_EOF) {
1754 ret = 0; /* ignore */
1755 } else if (ret < 0) {
1756 av_log(NULL, AV_LOG_FATAL,
1757 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1762 av_frame_unref(ist->filter_frame);
1763 av_frame_unref(decoded_frame);
1764 return err < 0 ? err : ret;
1767 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1769 AVSubtitle subtitle;
1770 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1771 &subtitle, got_output, pkt);
1773 if (*got_output || ret<0 || pkt->size)
1774 decode_error_stat[ret<0] ++;
1776 if (ret < 0 || !*got_output) {
1778 sub2video_flush(ist);
1782 if (ist->fix_sub_duration) {
1783 if (ist->prev_sub.got_output) {
1784 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1785 1000, AV_TIME_BASE);
1786 if (end < ist->prev_sub.subtitle.end_display_time) {
1787 av_log(ist->st->codec, AV_LOG_DEBUG,
1788 "Subtitle duration reduced from %d to %d\n",
1789 ist->prev_sub.subtitle.end_display_time, end);
1790 ist->prev_sub.subtitle.end_display_time = end;
1793 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1794 FFSWAP(int, ret, ist->prev_sub.ret);
1795 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1798 sub2video_update(ist, &subtitle);
1800 if (!*got_output || !subtitle.num_rects)
1803 for (i = 0; i < nb_output_streams; i++) {
1804 OutputStream *ost = output_streams[i];
1806 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1809 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1812 avsubtitle_free(&subtitle);
1816 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1817 static int output_packet(InputStream *ist, const AVPacket *pkt)
1823 if (!ist->saw_first_ts) {
1824 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;
1826 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1827 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1828 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1830 ist->saw_first_ts = 1;
1833 if (ist->next_dts == AV_NOPTS_VALUE)
1834 ist->next_dts = ist->dts;
1835 if (ist->next_pts == AV_NOPTS_VALUE)
1836 ist->next_pts = ist->pts;
1840 av_init_packet(&avpkt);
1848 if (pkt->dts != AV_NOPTS_VALUE) {
1849 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1850 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1851 ist->next_pts = ist->pts = ist->dts;
1854 // while we have more to decode or while the decoder did output something on EOF
1855 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1859 ist->pts = ist->next_pts;
1860 ist->dts = ist->next_dts;
1862 if (avpkt.size && avpkt.size != pkt->size) {
1863 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1864 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1865 ist->showed_multi_packet_warning = 1;
1868 switch (ist->st->codec->codec_type) {
1869 case AVMEDIA_TYPE_AUDIO:
1870 ret = decode_audio (ist, &avpkt, &got_output);
1872 case AVMEDIA_TYPE_VIDEO:
1873 ret = decode_video (ist, &avpkt, &got_output);
1874 if (avpkt.duration) {
1875 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1876 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1877 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1878 duration = ((int64_t)AV_TIME_BASE *
1879 ist->st->codec->time_base.num * ticks) /
1880 ist->st->codec->time_base.den;
1884 if(ist->dts != AV_NOPTS_VALUE && duration) {
1885 ist->next_dts += duration;
1887 ist->next_dts = AV_NOPTS_VALUE;
1890 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1892 case AVMEDIA_TYPE_SUBTITLE:
1893 ret = transcode_subtitles(ist, &avpkt, &got_output);
1903 avpkt.pts= AV_NOPTS_VALUE;
1905 // touch data and size only if not EOF
1907 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1917 /* handle stream copy */
1918 if (!ist->decoding_needed) {
1919 ist->dts = ist->next_dts;
1920 switch (ist->st->codec->codec_type) {
1921 case AVMEDIA_TYPE_AUDIO:
1922 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1923 ist->st->codec->sample_rate;
1925 case AVMEDIA_TYPE_VIDEO:
1926 if (ist->framerate.num) {
1927 // TODO: Remove work-around for c99-to-c89 issue 7
1928 AVRational time_base_q = AV_TIME_BASE_Q;
1929 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1930 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1931 } else if (pkt->duration) {
1932 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1933 } else if(ist->st->codec->time_base.num != 0) {
1934 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1935 ist->next_dts += ((int64_t)AV_TIME_BASE *
1936 ist->st->codec->time_base.num * ticks) /
1937 ist->st->codec->time_base.den;
1941 ist->pts = ist->dts;
1942 ist->next_pts = ist->next_dts;
1944 for (i = 0; pkt && i < nb_output_streams; i++) {
1945 OutputStream *ost = output_streams[i];
1947 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1950 do_streamcopy(ist, ost, pkt);
1956 static void print_sdp(void)
1960 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1964 for (i = 0; i < nb_output_files; i++)
1965 avc[i] = output_files[i]->ctx;
1967 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1968 printf("SDP:\n%s\n", sdp);
1973 static int init_input_stream(int ist_index, char *error, int error_len)
1976 InputStream *ist = input_streams[ist_index];
1978 if (ist->decoding_needed) {
1979 AVCodec *codec = ist->dec;
1981 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1982 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1983 return AVERROR(EINVAL);
1986 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1988 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1989 av_dict_set(&ist->opts, "threads", "auto", 0);
1990 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1992 if (ret == AVERROR_EXPERIMENTAL)
1993 abort_codec_experimental(codec, 0);
1995 av_strerror(ret, errbuf, sizeof(errbuf));
1997 snprintf(error, error_len,
1998 "Error while opening decoder for input stream "
2000 ist->file_index, ist->st->index, errbuf);
2003 assert_avoptions(ist->opts);
2006 ist->next_pts = AV_NOPTS_VALUE;
2007 ist->next_dts = AV_NOPTS_VALUE;
2013 static InputStream *get_input_stream(OutputStream *ost)
2015 if (ost->source_index >= 0)
2016 return input_streams[ost->source_index];
2020 static int compare_int64(const void *a, const void *b)
2022 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2023 return va < vb ? -1 : va > vb ? +1 : 0;
2026 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2027 AVCodecContext *avctx)
2030 int n = 1, i, size, index = 0;
2033 for (p = kf; *p; p++)
2037 pts = av_malloc(sizeof(*pts) * size);
2039 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2044 for (i = 0; i < n; i++) {
2045 char *next = strchr(p, ',');
2050 if (!memcmp(p, "chapters", 8)) {
2052 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2055 if (avf->nb_chapters > INT_MAX - size ||
2056 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2058 av_log(NULL, AV_LOG_FATAL,
2059 "Could not allocate forced key frames array.\n");
2062 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2063 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2065 for (j = 0; j < avf->nb_chapters; j++) {
2066 AVChapter *c = avf->chapters[j];
2067 av_assert1(index < size);
2068 pts[index++] = av_rescale_q(c->start, c->time_base,
2069 avctx->time_base) + t;
2074 t = parse_time_or_die("force_key_frames", p, 1);
2075 av_assert1(index < size);
2076 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2083 av_assert0(index == size);
2084 qsort(pts, size, sizeof(*pts), compare_int64);
2085 ost->forced_kf_count = size;
2086 ost->forced_kf_pts = pts;
2089 static void report_new_stream(int input_index, AVPacket *pkt)
2091 InputFile *file = input_files[input_index];
2092 AVStream *st = file->ctx->streams[pkt->stream_index];
2094 if (pkt->stream_index < file->nb_streams_warn)
2096 av_log(file->ctx, AV_LOG_WARNING,
2097 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2098 av_get_media_type_string(st->codec->codec_type),
2099 input_index, pkt->stream_index,
2100 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2101 file->nb_streams_warn = pkt->stream_index + 1;
2104 static int transcode_init(void)
2106 int ret = 0, i, j, k;
2107 AVFormatContext *oc;
2108 AVCodecContext *codec;
2114 for (i = 0; i < nb_filtergraphs; i++) {
2115 FilterGraph *fg = filtergraphs[i];
2116 for (j = 0; j < fg->nb_outputs; j++) {
2117 OutputFilter *ofilter = fg->outputs[j];
2118 if (!ofilter->ost || ofilter->ost->source_index >= 0)
2120 if (fg->nb_inputs != 1)
2122 for (k = nb_input_streams-1; k >= 0 ; k--)
2123 if (fg->inputs[0]->ist == input_streams[k])
2125 ofilter->ost->source_index = k;
2129 /* init framerate emulation */
2130 for (i = 0; i < nb_input_files; i++) {
2131 InputFile *ifile = input_files[i];
2132 if (ifile->rate_emu)
2133 for (j = 0; j < ifile->nb_streams; j++)
2134 input_streams[j + ifile->ist_index]->start = av_gettime();
2137 /* output stream init */
2138 for (i = 0; i < nb_output_files; i++) {
2139 oc = output_files[i]->ctx;
2140 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2141 av_dump_format(oc, i, oc->filename, 1);
2142 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2143 return AVERROR(EINVAL);
2147 /* init complex filtergraphs */
2148 for (i = 0; i < nb_filtergraphs; i++)
2149 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2152 /* for each output stream, we compute the right encoding parameters */
2153 for (i = 0; i < nb_output_streams; i++) {
2154 AVCodecContext *icodec = NULL;
2155 ost = output_streams[i];
2156 oc = output_files[ost->file_index]->ctx;
2157 ist = get_input_stream(ost);
2159 if (ost->attachment_filename)
2162 codec = ost->st->codec;
2165 icodec = ist->st->codec;
2167 ost->st->disposition = ist->st->disposition;
2168 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2169 codec->chroma_sample_location = icodec->chroma_sample_location;
2171 for (j=0; j<oc->nb_streams; j++) {
2172 AVStream *st = oc->streams[j];
2173 if (st != ost->st && st->codec->codec_type == codec->codec_type)
2176 if (j == oc->nb_streams)
2177 if (codec->codec_type == AVMEDIA_TYPE_AUDIO || codec->codec_type == AVMEDIA_TYPE_VIDEO)
2178 ost->st->disposition = AV_DISPOSITION_DEFAULT;
2181 if (ost->stream_copy) {
2183 uint64_t extra_size;
2185 av_assert0(ist && !ost->filter);
2187 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2189 if (extra_size > INT_MAX) {
2190 return AVERROR(EINVAL);
2193 /* if stream_copy is selected, no need to decode or encode */
2194 codec->codec_id = icodec->codec_id;
2195 codec->codec_type = icodec->codec_type;
2197 if (!codec->codec_tag) {
2198 unsigned int codec_tag;
2199 if (!oc->oformat->codec_tag ||
2200 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2201 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2202 codec->codec_tag = icodec->codec_tag;
2205 codec->bit_rate = icodec->bit_rate;
2206 codec->rc_max_rate = icodec->rc_max_rate;
2207 codec->rc_buffer_size = icodec->rc_buffer_size;
2208 codec->field_order = icodec->field_order;
2209 codec->extradata = av_mallocz(extra_size);
2210 if (!codec->extradata) {
2211 return AVERROR(ENOMEM);
2213 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2214 codec->extradata_size= icodec->extradata_size;
2215 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2217 codec->time_base = ist->st->time_base;
2219 * Avi is a special case here because it supports variable fps but
2220 * having the fps and timebase differe significantly adds quite some
2223 if(!strcmp(oc->oformat->name, "avi")) {
2224 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2225 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2226 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2227 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2229 codec->time_base.num = ist->st->r_frame_rate.den;
2230 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2231 codec->ticks_per_frame = 2;
2232 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2233 && av_q2d(ist->st->time_base) < 1.0/500
2235 codec->time_base = icodec->time_base;
2236 codec->time_base.num *= icodec->ticks_per_frame;
2237 codec->time_base.den *= 2;
2238 codec->ticks_per_frame = 2;
2240 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2241 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2242 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2243 && strcmp(oc->oformat->name, "f4v")
2245 if( copy_tb<0 && icodec->time_base.den
2246 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2247 && av_q2d(ist->st->time_base) < 1.0/500
2249 codec->time_base = icodec->time_base;
2250 codec->time_base.num *= icodec->ticks_per_frame;
2253 if ( codec->codec_tag == AV_RL32("tmcd")
2254 && icodec->time_base.num < icodec->time_base.den
2255 && icodec->time_base.num > 0
2256 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2257 codec->time_base = icodec->time_base;
2260 if (ist && !ost->frame_rate.num)
2261 ost->frame_rate = ist->framerate;
2262 if(ost->frame_rate.num)
2263 codec->time_base = av_inv_q(ost->frame_rate);
2265 av_reduce(&codec->time_base.num, &codec->time_base.den,
2266 codec->time_base.num, codec->time_base.den, INT_MAX);
2268 ost->parser = av_parser_init(codec->codec_id);
2270 switch (codec->codec_type) {
2271 case AVMEDIA_TYPE_AUDIO:
2272 if (audio_volume != 256) {
2273 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2276 codec->channel_layout = icodec->channel_layout;
2277 codec->sample_rate = icodec->sample_rate;
2278 codec->channels = icodec->channels;
2279 codec->frame_size = icodec->frame_size;
2280 codec->audio_service_type = icodec->audio_service_type;
2281 codec->block_align = icodec->block_align;
2282 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2283 codec->block_align= 0;
2284 if(codec->codec_id == AV_CODEC_ID_AC3)
2285 codec->block_align= 0;
2287 case AVMEDIA_TYPE_VIDEO:
2288 codec->pix_fmt = icodec->pix_fmt;
2289 codec->width = icodec->width;
2290 codec->height = icodec->height;
2291 codec->has_b_frames = icodec->has_b_frames;
2292 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2294 av_mul_q(ost->frame_aspect_ratio,
2295 (AVRational){ codec->height, codec->width });
2296 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2297 "with stream copy may produce invalid files\n");
2299 else if (ist->st->sample_aspect_ratio.num)
2300 sar = ist->st->sample_aspect_ratio;
2302 sar = icodec->sample_aspect_ratio;
2303 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
2304 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2306 case AVMEDIA_TYPE_SUBTITLE:
2307 codec->width = icodec->width;
2308 codec->height = icodec->height;
2310 case AVMEDIA_TYPE_DATA:
2311 case AVMEDIA_TYPE_ATTACHMENT:
2318 ost->enc = avcodec_find_encoder(codec->codec_id);
2320 /* should only happen when a default codec is not present. */
2321 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2322 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2323 ret = AVERROR(EINVAL);
2328 ist->decoding_needed++;
2329 ost->encoding_needed = 1;
2332 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2333 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2335 fg = init_simple_filtergraph(ist, ost);
2336 if (configure_filtergraph(fg)) {
2337 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2342 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2343 if (ost->filter && !ost->frame_rate.num)
2344 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2345 if (ist && !ost->frame_rate.num)
2346 ost->frame_rate = ist->framerate;
2347 if (ist && !ost->frame_rate.num)
2348 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2349 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2350 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2351 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2352 ost->frame_rate = ost->enc->supported_framerates[idx];
2356 switch (codec->codec_type) {
2357 case AVMEDIA_TYPE_AUDIO:
2358 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2359 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2360 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2361 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2362 codec->time_base = (AVRational){ 1, codec->sample_rate };
2364 case AVMEDIA_TYPE_VIDEO:
2365 codec->time_base = av_inv_q(ost->frame_rate);
2366 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2367 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2368 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2369 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2370 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2371 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2373 for (j = 0; j < ost->forced_kf_count; j++)
2374 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2378 codec->width = ost->filter->filter->inputs[0]->w;
2379 codec->height = ost->filter->filter->inputs[0]->h;
2380 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2381 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2382 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2383 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2384 if (!strncmp(ost->enc->name, "libx264", 7) &&
2385 codec->pix_fmt == AV_PIX_FMT_NONE &&
2386 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2387 av_log(NULL, AV_LOG_WARNING,
2388 "No pixel format specified, %s for H.264 encoding chosen.\n"
2389 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2390 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2391 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2392 codec->pix_fmt == AV_PIX_FMT_NONE &&
2393 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2394 av_log(NULL, AV_LOG_WARNING,
2395 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2396 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2397 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2398 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2401 codec->width != icodec->width ||
2402 codec->height != icodec->height ||
2403 codec->pix_fmt != icodec->pix_fmt) {
2404 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2407 if (ost->forced_keyframes) {
2408 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2409 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2410 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2412 av_log(NULL, AV_LOG_ERROR,
2413 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2416 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2417 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2418 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2419 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2421 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2425 case AVMEDIA_TYPE_SUBTITLE:
2426 codec->time_base = (AVRational){1, 1000};
2427 if (!codec->width) {
2428 codec->width = input_streams[ost->source_index]->st->codec->width;
2429 codec->height = input_streams[ost->source_index]->st->codec->height;
2437 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2438 char logfilename[1024];
2441 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2442 ost->logfile_prefix ? ost->logfile_prefix :
2443 DEFAULT_PASS_LOGFILENAME_PREFIX,
2445 if (!strcmp(ost->enc->name, "libx264")) {
2446 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2448 if (codec->flags & CODEC_FLAG_PASS2) {
2450 size_t logbuffer_size;
2451 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2452 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2456 codec->stats_in = logbuffer;
2458 if (codec->flags & CODEC_FLAG_PASS1) {
2459 f = fopen(logfilename, "wb");
2461 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2462 logfilename, strerror(errno));
2472 /* open each encoder */
2473 for (i = 0; i < nb_output_streams; i++) {
2474 ost = output_streams[i];
2475 if (ost->encoding_needed) {
2476 AVCodec *codec = ost->enc;
2477 AVCodecContext *dec = NULL;
2479 if ((ist = get_input_stream(ost)))
2480 dec = ist->st->codec;
2481 if (dec && dec->subtitle_header) {
2482 /* ASS code assumes this buffer is null terminated so add extra byte. */
2483 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2484 if (!ost->st->codec->subtitle_header) {
2485 ret = AVERROR(ENOMEM);
2488 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2489 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2491 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2492 av_dict_set(&ost->opts, "threads", "auto", 0);
2493 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2494 if (ret == AVERROR_EXPERIMENTAL)
2495 abort_codec_experimental(codec, 1);
2496 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2497 ost->file_index, ost->index);
2500 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2501 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2502 av_buffersink_set_frame_size(ost->filter->filter,
2503 ost->st->codec->frame_size);
2504 assert_avoptions(ost->opts);
2505 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2506 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2507 " It takes bits/s as argument, not kbits/s\n");
2508 extra_size += ost->st->codec->extradata_size;
2510 av_opt_set_dict(ost->st->codec, &ost->opts);
2514 /* init input streams */
2515 for (i = 0; i < nb_input_streams; i++)
2516 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2517 for (i = 0; i < nb_output_streams; i++) {
2518 ost = output_streams[i];
2519 avcodec_close(ost->st->codec);
2524 /* discard unused programs */
2525 for (i = 0; i < nb_input_files; i++) {
2526 InputFile *ifile = input_files[i];
2527 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2528 AVProgram *p = ifile->ctx->programs[j];
2529 int discard = AVDISCARD_ALL;
2531 for (k = 0; k < p->nb_stream_indexes; k++)
2532 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2533 discard = AVDISCARD_DEFAULT;
2536 p->discard = discard;
2540 /* open files and write file headers */
2541 for (i = 0; i < nb_output_files; i++) {
2542 oc = output_files[i]->ctx;
2543 oc->interrupt_callback = int_cb;
2544 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2546 av_strerror(ret, errbuf, sizeof(errbuf));
2547 snprintf(error, sizeof(error),
2548 "Could not write header for output file #%d "
2549 "(incorrect codec parameters ?): %s",
2551 ret = AVERROR(EINVAL);
2554 // assert_avoptions(output_files[i]->opts);
2555 if (strcmp(oc->oformat->name, "rtp")) {
2561 /* dump the file output parameters - cannot be done before in case
2563 for (i = 0; i < nb_output_files; i++) {
2564 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2567 /* dump the stream mapping */
2568 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2569 for (i = 0; i < nb_input_streams; i++) {
2570 ist = input_streams[i];
2572 for (j = 0; j < ist->nb_filters; j++) {
2573 if (ist->filters[j]->graph->graph_desc) {
2574 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2575 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2576 ist->filters[j]->name);
2577 if (nb_filtergraphs > 1)
2578 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2579 av_log(NULL, AV_LOG_INFO, "\n");
2584 for (i = 0; i < nb_output_streams; i++) {
2585 ost = output_streams[i];
2587 if (ost->attachment_filename) {
2588 /* an attached file */
2589 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2590 ost->attachment_filename, ost->file_index, ost->index);
2594 if (ost->filter && ost->filter->graph->graph_desc) {
2595 /* output from a complex graph */
2596 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2597 if (nb_filtergraphs > 1)
2598 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2600 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2601 ost->index, ost->enc ? ost->enc->name : "?");
2605 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2606 input_streams[ost->source_index]->file_index,
2607 input_streams[ost->source_index]->st->index,
2610 if (ost->sync_ist != input_streams[ost->source_index])
2611 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2612 ost->sync_ist->file_index,
2613 ost->sync_ist->st->index);
2614 if (ost->stream_copy)
2615 av_log(NULL, AV_LOG_INFO, " (copy)");
2617 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2618 input_streams[ost->source_index]->dec->name : "?",
2619 ost->enc ? ost->enc->name : "?");
2620 av_log(NULL, AV_LOG_INFO, "\n");
2624 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2635 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2636 static int need_output(void)
2640 for (i = 0; i < nb_output_streams; i++) {
2641 OutputStream *ost = output_streams[i];
2642 OutputFile *of = output_files[ost->file_index];
2643 AVFormatContext *os = output_files[ost->file_index]->ctx;
2645 if (ost->finished ||
2646 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2648 if (ost->frame_number >= ost->max_frames) {
2650 for (j = 0; j < of->ctx->nb_streams; j++)
2651 close_output_stream(output_streams[of->ost_index + j]);
2662 * Select the output stream to process.
2664 * @return selected output stream, or NULL if none available
2666 static OutputStream *choose_output(void)
2669 int64_t opts_min = INT64_MAX;
2670 OutputStream *ost_min = NULL;
2672 for (i = 0; i < nb_output_streams; i++) {
2673 OutputStream *ost = output_streams[i];
2674 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2676 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2684 static int check_keyboard_interaction(int64_t cur_time)
2687 static int64_t last_time;
2688 if (received_nb_signals)
2689 return AVERROR_EXIT;
2690 /* read_key() returns 0 on EOF */
2691 if(cur_time - last_time >= 100000 && !run_as_daemon){
2693 last_time = cur_time;
2697 return AVERROR_EXIT;
2698 if (key == '+') av_log_set_level(av_log_get_level()+10);
2699 if (key == '-') av_log_set_level(av_log_get_level()-10);
2700 if (key == 's') qp_hist ^= 1;
2703 do_hex_dump = do_pkt_dump = 0;
2704 } else if(do_pkt_dump){
2708 av_log_set_level(AV_LOG_DEBUG);
2710 if (key == 'c' || key == 'C'){
2711 char buf[4096], target[64], command[256], arg[256] = {0};
2714 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
2716 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2721 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2722 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2723 target, time, command, arg);
2724 for (i = 0; i < nb_filtergraphs; i++) {
2725 FilterGraph *fg = filtergraphs[i];
2728 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2729 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2730 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
2731 } else if (key == 'c') {
2732 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
2733 ret = AVERROR_PATCHWELCOME;
2735 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2740 av_log(NULL, AV_LOG_ERROR,
2741 "Parse error, at least 3 arguments were expected, "
2742 "only %d given in string '%s'\n", n, buf);
2745 if (key == 'd' || key == 'D'){
2748 debug = input_streams[0]->st->codec->debug<<1;
2749 if(!debug) debug = 1;
2750 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2753 if(scanf("%d", &debug)!=1)
2754 fprintf(stderr,"error parsing debug value\n");
2755 for(i=0;i<nb_input_streams;i++) {
2756 input_streams[i]->st->codec->debug = debug;
2758 for(i=0;i<nb_output_streams;i++) {
2759 OutputStream *ost = output_streams[i];
2760 ost->st->codec->debug = debug;
2762 if(debug) av_log_set_level(AV_LOG_DEBUG);
2763 fprintf(stderr,"debug=%d\n", debug);
2766 fprintf(stderr, "key function\n"
2767 "? show this help\n"
2768 "+ increase verbosity\n"
2769 "- decrease verbosity\n"
2770 "c Send command to first matching filter supporting it\n"
2771 "C Send/Que command to all matching filters\n"
2772 "D cycle through available debug modes\n"
2773 "h dump packets/hex press to cycle through the 3 states\n"
2775 "s Show QP histogram\n"
2782 static void *input_thread(void *arg)
2787 while (!transcoding_finished && ret >= 0) {
2789 ret = av_read_frame(f->ctx, &pkt);
2791 if (ret == AVERROR(EAGAIN)) {
2798 pthread_mutex_lock(&f->fifo_lock);
2799 while (!av_fifo_space(f->fifo))
2800 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2802 av_dup_packet(&pkt);
2803 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2805 pthread_mutex_unlock(&f->fifo_lock);
2812 static void free_input_threads(void)
2816 if (nb_input_files == 1)
2819 transcoding_finished = 1;
2821 for (i = 0; i < nb_input_files; i++) {
2822 InputFile *f = input_files[i];
2825 if (!f->fifo || f->joined)
2828 pthread_mutex_lock(&f->fifo_lock);
2829 while (av_fifo_size(f->fifo)) {
2830 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2831 av_free_packet(&pkt);
2833 pthread_cond_signal(&f->fifo_cond);
2834 pthread_mutex_unlock(&f->fifo_lock);
2836 pthread_join(f->thread, NULL);
2839 while (av_fifo_size(f->fifo)) {
2840 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2841 av_free_packet(&pkt);
2843 av_fifo_free(f->fifo);
2847 static int init_input_threads(void)
2851 if (nb_input_files == 1)
2854 for (i = 0; i < nb_input_files; i++) {
2855 InputFile *f = input_files[i];
2857 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2858 return AVERROR(ENOMEM);
2860 pthread_mutex_init(&f->fifo_lock, NULL);
2861 pthread_cond_init (&f->fifo_cond, NULL);
2863 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2864 return AVERROR(ret);
2869 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2873 pthread_mutex_lock(&f->fifo_lock);
2875 if (av_fifo_size(f->fifo)) {
2876 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2877 pthread_cond_signal(&f->fifo_cond);
2882 ret = AVERROR(EAGAIN);
2885 pthread_mutex_unlock(&f->fifo_lock);
2891 static int get_input_packet(InputFile *f, AVPacket *pkt)
2895 for (i = 0; i < f->nb_streams; i++) {
2896 InputStream *ist = input_streams[f->ist_index + i];
2897 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2898 int64_t now = av_gettime() - ist->start;
2900 return AVERROR(EAGAIN);
2905 if (nb_input_files > 1)
2906 return get_input_packet_mt(f, pkt);
2908 return av_read_frame(f->ctx, pkt);
2911 static int got_eagain(void)
2914 for (i = 0; i < nb_output_streams; i++)
2915 if (output_streams[i]->unavailable)
2920 static void reset_eagain(void)
2923 for (i = 0; i < nb_input_files; i++)
2924 input_files[i]->eagain = 0;
2925 for (i = 0; i < nb_output_streams; i++)
2926 output_streams[i]->unavailable = 0;
2931 * - 0 -- one packet was read and processed
2932 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2933 * this function should be called again
2934 * - AVERROR_EOF -- this function should not be called again
2936 static int process_input(int file_index)
2938 InputFile *ifile = input_files[file_index];
2939 AVFormatContext *is;
2945 ret = get_input_packet(ifile, &pkt);
2947 if (ret == AVERROR(EAGAIN)) {
2952 if (ret != AVERROR_EOF) {
2953 print_error(is->filename, ret);
2957 ifile->eof_reached = 1;
2959 for (i = 0; i < ifile->nb_streams; i++) {
2960 ist = input_streams[ifile->ist_index + i];
2961 if (ist->decoding_needed)
2962 output_packet(ist, NULL);
2964 /* mark all outputs that don't go through lavfi as finished */
2965 for (j = 0; j < nb_output_streams; j++) {
2966 OutputStream *ost = output_streams[j];
2968 if (ost->source_index == ifile->ist_index + i &&
2969 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2970 close_output_stream(ost);
2974 return AVERROR(EAGAIN);
2980 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2981 is->streams[pkt.stream_index]);
2983 /* the following test is needed in case new streams appear
2984 dynamically in stream : we ignore them */
2985 if (pkt.stream_index >= ifile->nb_streams) {
2986 report_new_stream(file_index, &pkt);
2987 goto discard_packet;
2990 ist = input_streams[ifile->ist_index + pkt.stream_index];
2992 goto discard_packet;
2995 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2996 "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",
2997 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2998 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2999 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
3000 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3001 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3002 av_ts2str(input_files[ist->file_index]->ts_offset),
3003 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3006 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3007 int64_t stime, stime2;
3008 // Correcting starttime based on the enabled streams
3009 // 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.
3010 // so we instead do it here as part of discontinuity handling
3011 if ( ist->next_dts == AV_NOPTS_VALUE
3012 && ifile->ts_offset == -is->start_time
3013 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3014 int64_t new_start_time = INT64_MAX;
3015 for (i=0; i<is->nb_streams; i++) {
3016 AVStream *st = is->streams[i];
3017 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3019 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3021 if (new_start_time > is->start_time) {
3022 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3023 ifile->ts_offset = -new_start_time;
3027 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3028 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3029 ist->wrap_correction_done = 1;
3031 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3032 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3033 ist->wrap_correction_done = 0;
3035 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3036 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3037 ist->wrap_correction_done = 0;
3041 if (pkt.dts != AV_NOPTS_VALUE)
3042 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3043 if (pkt.pts != AV_NOPTS_VALUE)
3044 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3046 if (pkt.pts != AV_NOPTS_VALUE)
3047 pkt.pts *= ist->ts_scale;
3048 if (pkt.dts != AV_NOPTS_VALUE)
3049 pkt.dts *= ist->ts_scale;
3051 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3052 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3053 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3054 int64_t delta = pkt_dts - ifile->last_ts;
3055 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3056 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3057 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3058 ifile->ts_offset -= delta;
3059 av_log(NULL, AV_LOG_DEBUG,
3060 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3061 delta, ifile->ts_offset);
3062 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3063 if (pkt.pts != AV_NOPTS_VALUE)
3064 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3068 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3070 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3071 int64_t delta = pkt_dts - ist->next_dts;
3072 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3073 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3074 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3075 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3076 pkt_dts + AV_TIME_BASE/10 < ist->pts){
3077 ifile->ts_offset -= delta;
3078 av_log(NULL, AV_LOG_DEBUG,
3079 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3080 delta, ifile->ts_offset);
3081 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3082 if (pkt.pts != AV_NOPTS_VALUE)
3083 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3086 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3087 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3089 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3090 pkt.dts = AV_NOPTS_VALUE;
3092 if (pkt.pts != AV_NOPTS_VALUE){
3093 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3094 delta = pkt_pts - ist->next_dts;
3095 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3096 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3098 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3099 pkt.pts = AV_NOPTS_VALUE;
3105 if (pkt.dts != AV_NOPTS_VALUE)
3106 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3109 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",
3110 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3111 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3112 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3113 av_ts2str(input_files[ist->file_index]->ts_offset),
3114 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3117 sub2video_heartbeat(ist, pkt.pts);
3119 ret = output_packet(ist, &pkt);
3122 av_strerror(ret, buf, sizeof(buf));
3123 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3124 ist->file_index, ist->st->index, buf);
3130 av_free_packet(&pkt);
3136 * Perform a step of transcoding for the specified filter graph.
3138 * @param[in] graph filter graph to consider
3139 * @param[out] best_ist input stream where a frame would allow to continue
3140 * @return 0 for success, <0 for error
3142 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3145 int nb_requests, nb_requests_max = 0;
3146 InputFilter *ifilter;
3150 ret = avfilter_graph_request_oldest(graph->graph);
3152 return reap_filters();
3154 if (ret == AVERROR_EOF) {
3155 ret = reap_filters();
3156 for (i = 0; i < graph->nb_outputs; i++)
3157 close_output_stream(graph->outputs[i]->ost);
3160 if (ret != AVERROR(EAGAIN))
3163 for (i = 0; i < graph->nb_inputs; i++) {
3164 ifilter = graph->inputs[i];
3166 if (input_files[ist->file_index]->eagain ||
3167 input_files[ist->file_index]->eof_reached)
3169 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3170 if (nb_requests > nb_requests_max) {
3171 nb_requests_max = nb_requests;
3177 for (i = 0; i < graph->nb_outputs; i++)
3178 graph->outputs[i]->ost->unavailable = 1;
3184 * Run a single step of transcoding.
3186 * @return 0 for success, <0 for error
3188 static int transcode_step(void)
3194 ost = choose_output();
3201 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3206 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3211 av_assert0(ost->source_index >= 0);
3212 ist = input_streams[ost->source_index];
3215 ret = process_input(ist->file_index);
3216 if (ret == AVERROR(EAGAIN)) {
3217 if (input_files[ist->file_index]->eagain)
3218 ost->unavailable = 1;
3222 return ret == AVERROR_EOF ? 0 : ret;
3224 return reap_filters();
3228 * The following code is the main loop of the file converter
3230 static int transcode(void)
3233 AVFormatContext *os;
3236 int64_t timer_start;
3238 ret = transcode_init();
3242 if (stdin_interaction) {
3243 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3246 timer_start = av_gettime();
3249 if ((ret = init_input_threads()) < 0)
3253 while (!received_sigterm) {
3254 int64_t cur_time= av_gettime();
3256 /* if 'q' pressed, exits */
3257 if (stdin_interaction)
3258 if (check_keyboard_interaction(cur_time) < 0)
3261 /* check if there's any stream where output is still needed */
3262 if (!need_output()) {
3263 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3267 ret = transcode_step();
3269 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3272 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3276 /* dump report by using the output first video and audio streams */
3277 print_report(0, timer_start, cur_time);
3280 free_input_threads();
3283 /* at the end of stream, we must flush the decoder buffers */
3284 for (i = 0; i < nb_input_streams; i++) {
3285 ist = input_streams[i];
3286 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3287 output_packet(ist, NULL);
3294 /* write the trailer if needed and close file */
3295 for (i = 0; i < nb_output_files; i++) {
3296 os = output_files[i]->ctx;
3297 av_write_trailer(os);
3300 /* dump report by using the first video and audio streams */
3301 print_report(1, timer_start, av_gettime());
3303 /* close each encoder */
3304 for (i = 0; i < nb_output_streams; i++) {
3305 ost = output_streams[i];
3306 if (ost->encoding_needed) {
3307 av_freep(&ost->st->codec->stats_in);
3308 avcodec_close(ost->st->codec);
3312 /* close each decoder */
3313 for (i = 0; i < nb_input_streams; i++) {
3314 ist = input_streams[i];
3315 if (ist->decoding_needed) {
3316 avcodec_close(ist->st->codec);
3325 free_input_threads();
3328 if (output_streams) {
3329 for (i = 0; i < nb_output_streams; i++) {
3330 ost = output_streams[i];
3332 if (ost->stream_copy)
3333 av_freep(&ost->st->codec->extradata);
3335 fclose(ost->logfile);
3336 ost->logfile = NULL;
3338 av_freep(&ost->st->codec->subtitle_header);
3339 av_freep(&ost->forced_kf_pts);
3340 av_freep(&ost->apad);
3341 av_dict_free(&ost->opts);
3342 av_dict_free(&ost->swr_opts);
3343 av_dict_free(&ost->resample_opts);
3351 static int64_t getutime(void)
3354 struct rusage rusage;
3356 getrusage(RUSAGE_SELF, &rusage);
3357 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3358 #elif HAVE_GETPROCESSTIMES
3360 FILETIME c, e, k, u;
3361 proc = GetCurrentProcess();
3362 GetProcessTimes(proc, &c, &e, &k, &u);
3363 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3365 return av_gettime();
3369 static int64_t getmaxrss(void)
3371 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3372 struct rusage rusage;
3373 getrusage(RUSAGE_SELF, &rusage);
3374 return (int64_t)rusage.ru_maxrss * 1024;
3375 #elif HAVE_GETPROCESSMEMORYINFO
3377 PROCESS_MEMORY_COUNTERS memcounters;
3378 proc = GetCurrentProcess();
3379 memcounters.cb = sizeof(memcounters);
3380 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3381 return memcounters.PeakPagefileUsage;
3387 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3391 int main(int argc, char **argv)
3396 register_exit(ffmpeg_cleanup);
3398 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3400 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3401 parse_loglevel(argc, argv, options);
3403 if(argc>1 && !strcmp(argv[1], "-d")){
3405 av_log_set_callback(log_callback_null);
3410 avcodec_register_all();
3412 avdevice_register_all();
3414 avfilter_register_all();
3416 avformat_network_init();
3418 show_banner(argc, argv, options);
3422 /* parse options and open all input/output files */
3423 ret = ffmpeg_parse_options(argc, argv);
3427 if (nb_output_files <= 0 && nb_input_files == 0) {
3429 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3433 /* file converter / grab */
3434 if (nb_output_files <= 0) {
3435 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3439 // if (nb_input_files == 0) {
3440 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3444 current_time = ti = getutime();
3445 if (transcode() < 0)
3447 ti = getutime() - ti;
3449 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3451 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3452 decode_error_stat[0], decode_error_stat[1]);
3453 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3456 exit_program(received_nb_signals ? 255 : 0);