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
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
46 #include "libswresample/swresample.h"
47 #include "libavutil/opt.h"
48 #include "libavutil/channel_layout.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/samplefmt.h"
51 #include "libavutil/fifo.h"
52 #include "libavutil/intreadwrite.h"
53 #include "libavutil/dict.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/pixdesc.h"
56 #include "libavutil/avstring.h"
57 #include "libavutil/libm.h"
58 #include "libavutil/imgutils.h"
59 #include "libavutil/timestamp.h"
60 #include "libavutil/bprint.h"
61 #include "libavutil/time.h"
62 #include "libavformat/os_support.h"
64 #include "libavformat/ffm.h" // not public API
66 # include "libavfilter/avcodec.h"
67 # include "libavfilter/avfilter.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 const char *const forced_keyframes_const_names[] = {
121 static void do_video_stats(OutputStream *ost, int frame_size);
122 static int64_t getutime(void);
123 static int64_t getmaxrss(void);
125 static int run_as_daemon = 0;
126 static int nb_frames_dup = 0;
127 static int nb_frames_drop = 0;
128 static int64_t decode_error_stat[2];
130 static int current_time;
131 AVIOContext *progress_avio = NULL;
133 static uint8_t *subtitle_out;
136 /* signal to input threads that they should exit; set by the main thread */
137 static int transcoding_finished;
140 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
142 InputStream **input_streams = NULL;
143 int nb_input_streams = 0;
144 InputFile **input_files = NULL;
145 int nb_input_files = 0;
147 OutputStream **output_streams = NULL;
148 int nb_output_streams = 0;
149 OutputFile **output_files = NULL;
150 int nb_output_files = 0;
152 FilterGraph **filtergraphs;
157 /* init terminal so that we can grab keys */
158 static struct termios oldtty;
159 static int restore_tty;
162 static void free_input_threads(void);
166 Convert subtitles to video with alpha to insert them in filter graphs.
167 This is a temporary solution until libavfilter gets real subtitles support.
170 static int sub2video_get_blank_frame(InputStream *ist)
173 AVFrame *frame = ist->sub2video.frame;
175 av_frame_unref(frame);
176 ist->sub2video.frame->width = ist->sub2video.w;
177 ist->sub2video.frame->height = ist->sub2video.h;
178 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
179 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
181 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
185 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
188 uint32_t *pal, *dst2;
192 if (r->type != SUBTITLE_BITMAP) {
193 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
196 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
197 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
201 dst += r->y * dst_linesize + r->x * 4;
202 src = r->pict.data[0];
203 pal = (uint32_t *)r->pict.data[1];
204 for (y = 0; y < r->h; y++) {
205 dst2 = (uint32_t *)dst;
207 for (x = 0; x < r->w; x++)
208 *(dst2++) = pal[*(src2++)];
210 src += r->pict.linesize[0];
214 static void sub2video_push_ref(InputStream *ist, int64_t pts)
216 AVFrame *frame = ist->sub2video.frame;
219 av_assert1(frame->data[0]);
220 ist->sub2video.last_pts = frame->pts = pts;
221 for (i = 0; i < ist->nb_filters; i++)
222 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
223 AV_BUFFERSRC_FLAG_KEEP_REF |
224 AV_BUFFERSRC_FLAG_PUSH);
227 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
229 int w = ist->sub2video.w, h = ist->sub2video.h;
230 AVFrame *frame = ist->sub2video.frame;
234 int64_t pts, end_pts;
239 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
240 AV_TIME_BASE_Q, ist->st->time_base);
241 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
242 AV_TIME_BASE_Q, ist->st->time_base);
243 num_rects = sub->num_rects;
245 pts = ist->sub2video.end_pts;
249 if (sub2video_get_blank_frame(ist) < 0) {
250 av_log(ist->st->codec, AV_LOG_ERROR,
251 "Impossible to get a blank canvas.\n");
254 dst = frame->data [0];
255 dst_linesize = frame->linesize[0];
256 for (i = 0; i < num_rects; i++)
257 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
258 sub2video_push_ref(ist, pts);
259 ist->sub2video.end_pts = end_pts;
262 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
264 InputFile *infile = input_files[ist->file_index];
268 /* When a frame is read from a file, examine all sub2video streams in
269 the same file and send the sub2video frame again. Otherwise, decoded
270 video frames could be accumulating in the filter graph while a filter
271 (possibly overlay) is desperately waiting for a subtitle frame. */
272 for (i = 0; i < infile->nb_streams; i++) {
273 InputStream *ist2 = input_streams[infile->ist_index + i];
274 if (!ist2->sub2video.frame)
276 /* subtitles seem to be usually muxed ahead of other streams;
277 if not, substracting a larger time here is necessary */
278 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
279 /* do not send the heartbeat frame if the subtitle is already ahead */
280 if (pts2 <= ist2->sub2video.last_pts)
282 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
283 sub2video_update(ist2, NULL);
284 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
285 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
287 sub2video_push_ref(ist2, pts2);
291 static void sub2video_flush(InputStream *ist)
295 if (ist->sub2video.end_pts < INT64_MAX)
296 sub2video_update(ist, NULL);
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 */
303 static void term_exit_sigsafe(void)
307 tcsetattr (0, TCSANOW, &oldtty);
313 av_log(NULL, AV_LOG_QUIET, "%s", "");
317 static volatile int received_sigterm = 0;
318 static volatile int received_nb_signals = 0;
319 static volatile int transcode_init_done = 0;
320 static int main_return_code = 0;
323 sigterm_handler(int sig)
325 received_sigterm = sig;
326 received_nb_signals++;
328 if(received_nb_signals > 3)
339 istty = isatty(0) && isatty(2);
341 if (istty && tcgetattr (0, &tty) == 0) {
345 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
346 |INLCR|IGNCR|ICRNL|IXON);
347 tty.c_oflag |= OPOST;
348 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
349 tty.c_cflag &= ~(CSIZE|PARENB);
354 tcsetattr (0, TCSANOW, &tty);
356 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
359 avformat_network_deinit();
361 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
362 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
364 signal(SIGXCPU, sigterm_handler);
368 /* read a key without blocking */
369 static int read_key(void)
381 n = select(1, &rfds, NULL, NULL, &tv);
390 # if HAVE_PEEKNAMEDPIPE
392 static HANDLE input_handle;
395 input_handle = GetStdHandle(STD_INPUT_HANDLE);
396 is_pipe = !GetConsoleMode(input_handle, &dw);
399 if (stdin->_cnt > 0) {
404 /* When running under a GUI, you will end here. */
405 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
406 // input pipe may have been closed by the program that ran ffmpeg
424 static int decode_interrupt_cb(void *ctx)
426 return received_nb_signals > transcode_init_done;
429 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
431 static void ffmpeg_cleanup(int ret)
436 int maxrss = getmaxrss() / 1024;
437 printf("bench: maxrss=%ikB\n", maxrss);
440 for (i = 0; i < nb_filtergraphs; i++) {
441 FilterGraph *fg = filtergraphs[i];
442 avfilter_graph_free(&fg->graph);
443 for (j = 0; j < fg->nb_inputs; j++) {
444 av_freep(&fg->inputs[j]->name);
445 av_freep(&fg->inputs[j]);
447 av_freep(&fg->inputs);
448 for (j = 0; j < fg->nb_outputs; j++) {
449 av_freep(&fg->outputs[j]->name);
450 av_freep(&fg->outputs[j]);
452 av_freep(&fg->outputs);
453 av_freep(&fg->graph_desc);
455 av_freep(&filtergraphs[i]);
457 av_freep(&filtergraphs);
459 av_freep(&subtitle_out);
462 for (i = 0; i < nb_output_files; i++) {
463 OutputFile *of = output_files[i];
464 AVFormatContext *s = of->ctx;
465 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
467 avformat_free_context(s);
468 av_dict_free(&of->opts);
470 av_freep(&output_files[i]);
472 for (i = 0; i < nb_output_streams; i++) {
473 OutputStream *ost = output_streams[i];
474 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
476 AVBitStreamFilterContext *next = bsfc->next;
477 av_bitstream_filter_close(bsfc);
480 ost->bitstream_filters = NULL;
481 av_frame_free(&ost->filtered_frame);
483 av_parser_close(ost->parser);
485 av_freep(&ost->forced_keyframes);
486 av_expr_free(ost->forced_keyframes_pexpr);
487 av_freep(&ost->avfilter);
488 av_freep(&ost->logfile_prefix);
490 av_freep(&output_streams[i]);
493 free_input_threads();
495 for (i = 0; i < nb_input_files; i++) {
496 avformat_close_input(&input_files[i]->ctx);
497 av_freep(&input_files[i]);
499 for (i = 0; i < nb_input_streams; i++) {
500 InputStream *ist = input_streams[i];
502 av_frame_free(&ist->decoded_frame);
503 av_frame_free(&ist->filter_frame);
504 av_dict_free(&ist->decoder_opts);
505 avsubtitle_free(&ist->prev_sub.subtitle);
506 av_frame_free(&ist->sub2video.frame);
507 av_freep(&ist->filters);
508 av_freep(&ist->hwaccel_device);
510 av_freep(&input_streams[i]);
515 av_free(vstats_filename);
517 av_freep(&input_streams);
518 av_freep(&input_files);
519 av_freep(&output_streams);
520 av_freep(&output_files);
524 avformat_network_deinit();
526 if (received_sigterm) {
527 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
528 (int) received_sigterm);
529 } else if (ret && transcode_init_done) {
530 av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
535 void assert_avoptions(AVDictionary *m)
537 AVDictionaryEntry *t;
538 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
539 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
544 static void abort_codec_experimental(AVCodec *c, int encoder)
549 static void update_benchmark(const char *fmt, ...)
551 if (do_benchmark_all) {
552 int64_t t = getutime();
558 vsnprintf(buf, sizeof(buf), fmt, va);
560 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
566 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
569 for (i = 0; i < nb_output_streams; i++) {
570 OutputStream *ost2 = output_streams[i];
571 ost2->finished |= ost == ost2 ? this_stream : others;
575 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
577 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
578 AVCodecContext *avctx = ost->st->codec;
581 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
582 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
583 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
586 * Audio encoders may split the packets -- #frames in != #packets out.
587 * But there is no reordering, so we can limit the number of output packets
588 * by simply dropping them here.
589 * Counting encoded video frames needs to be done separately because of
590 * reordering, see do_video_out()
592 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
593 if (ost->frame_number >= ost->max_frames) {
601 av_packet_split_side_data(pkt);
604 AVPacket new_pkt = *pkt;
605 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
606 &new_pkt.data, &new_pkt.size,
607 pkt->data, pkt->size,
608 pkt->flags & AV_PKT_FLAG_KEY);
609 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
610 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
612 memcpy(t, new_pkt.data, new_pkt.size);
613 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
622 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
623 av_buffer_default_free, NULL, 0);
627 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
628 bsfc->filter->name, pkt->stream_index,
629 avctx->codec ? avctx->codec->name : "copy");
639 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
640 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
641 pkt->dts != AV_NOPTS_VALUE &&
642 ost->last_mux_dts != AV_NOPTS_VALUE) {
643 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
644 if (pkt->dts < max) {
645 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
646 av_log(s, loglevel, "Non-monotonous DTS in output stream "
647 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
648 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
650 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
653 av_log(s, loglevel, "changing to %"PRId64". This may result "
654 "in incorrect timestamps in the output file.\n",
656 if(pkt->pts >= pkt->dts)
657 pkt->pts = FFMAX(pkt->pts, max);
661 ost->last_mux_dts_plus_duration =
662 ost->last_mux_dts = pkt->dts;
664 if (ost->last_mux_dts_plus_duration != AV_NOPTS_VALUE)
665 ost->last_mux_dts_plus_duration += pkt->duration;
667 ost->data_size += pkt->size;
668 ost->packets_written++;
670 pkt->stream_index = ost->index;
673 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
674 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
675 av_get_media_type_string(ost->st->codec->codec_type),
676 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
677 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
682 ret = av_interleaved_write_frame(s, pkt);
684 print_error("av_interleaved_write_frame()", ret);
685 main_return_code = 1;
686 close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
691 static void close_output_stream(OutputStream *ost)
693 OutputFile *of = output_files[ost->file_index];
695 ost->finished |= ENCODER_FINISHED;
697 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
698 of->recording_time = FFMIN(of->recording_time, end);
702 static int check_recording_time(OutputStream *ost)
704 OutputFile *of = output_files[ost->file_index];
706 if (of->recording_time != INT64_MAX &&
707 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
708 AV_TIME_BASE_Q) >= 0) {
709 close_output_stream(ost);
715 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
718 AVCodecContext *enc = ost->st->codec;
722 av_init_packet(&pkt);
726 if (!check_recording_time(ost))
729 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
730 frame->pts = ost->sync_opts;
731 ost->sync_opts = frame->pts + frame->nb_samples;
732 ost->samples_encoded += frame->nb_samples;
733 ost->frames_encoded++;
735 av_assert0(pkt.size || !pkt.data);
736 update_benchmark(NULL);
738 av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
739 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
740 av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
741 enc->time_base.num, enc->time_base.den);
744 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
745 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
748 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
751 if (pkt.pts != AV_NOPTS_VALUE)
752 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
753 if (pkt.dts != AV_NOPTS_VALUE)
754 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
755 if (pkt.duration > 0)
756 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
759 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
760 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
761 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
762 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
765 write_frame(s, &pkt, ost);
769 static void do_subtitle_out(AVFormatContext *s,
774 int subtitle_out_max_size = 1024 * 1024;
775 int subtitle_out_size, nb, i;
780 if (sub->pts == AV_NOPTS_VALUE) {
781 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
787 enc = ost->st->codec;
790 subtitle_out = av_malloc(subtitle_out_max_size);
793 /* Note: DVB subtitle need one packet to draw them and one other
794 packet to clear them */
795 /* XXX: signal it in the codec context ? */
796 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
801 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
803 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
804 pts -= output_files[ost->file_index]->start_time;
805 for (i = 0; i < nb; i++) {
806 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
807 if (!check_recording_time(ost))
811 // start_display_time is required to be 0
812 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
813 sub->end_display_time -= sub->start_display_time;
814 sub->start_display_time = 0;
818 ost->frames_encoded++;
820 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
821 subtitle_out_max_size, sub);
822 if (subtitle_out_size < 0) {
823 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
827 av_init_packet(&pkt);
828 pkt.data = subtitle_out;
829 pkt.size = subtitle_out_size;
830 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
831 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
832 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
833 /* XXX: the pts correction is handled here. Maybe handling
834 it in the codec would be better */
836 pkt.pts += 90 * sub->start_display_time;
838 pkt.pts += 90 * sub->end_display_time;
841 write_frame(s, &pkt, ost);
845 static void do_video_out(AVFormatContext *s,
849 int ret, format_video_sync;
851 AVCodecContext *enc = ost->st->codec;
853 double sync_ipts, delta;
856 InputStream *ist = NULL;
858 if (ost->source_index >= 0)
859 ist = input_streams[ost->source_index];
861 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
862 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
864 sync_ipts = in_picture->pts;
865 delta = sync_ipts - ost->sync_opts + duration;
867 /* by default, we output a single frame */
870 format_video_sync = video_sync_method;
871 if (format_video_sync == VSYNC_AUTO) {
872 if(!strcmp(s->oformat->name, "avi")) {
873 format_video_sync = VSYNC_VFR;
875 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
877 && format_video_sync == VSYNC_CFR
878 && input_files[ist->file_index]->ctx->nb_streams == 1
879 && input_files[ist->file_index]->input_ts_offset == 0) {
880 format_video_sync = VSYNC_VSCFR;
882 if (format_video_sync == VSYNC_CFR && copy_ts) {
883 format_video_sync = VSYNC_VSCFR;
887 switch (format_video_sync) {
889 if (ost->frame_number == 0 && delta - duration >= 0.5) {
890 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
892 ost->sync_opts = lrint(sync_ipts);
895 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
898 else if (delta > 1.1)
899 nb_frames = lrintf(delta);
904 else if (delta > 0.6)
905 ost->sync_opts = lrint(sync_ipts);
908 case VSYNC_PASSTHROUGH:
909 ost->sync_opts = lrint(sync_ipts);
915 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
916 if (nb_frames == 0) {
918 av_log(NULL, AV_LOG_VERBOSE,
919 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
920 ost->frame_number, ost->st->index, in_picture->pts);
922 } else if (nb_frames > 1) {
923 if (nb_frames > dts_error_threshold * 30) {
924 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
928 nb_frames_dup += nb_frames - 1;
929 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
932 /* duplicates frame if needed */
933 for (i = 0; i < nb_frames; i++) {
934 av_init_packet(&pkt);
938 in_picture->pts = ost->sync_opts;
941 if (!check_recording_time(ost))
943 if (ost->frame_number >= ost->max_frames)
947 if (s->oformat->flags & AVFMT_RAWPICTURE &&
948 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
949 /* raw pictures are written as AVPicture structure to
950 avoid any copies. We support temporarily the older
952 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
953 enc->coded_frame->top_field_first = in_picture->top_field_first;
954 if (enc->coded_frame->interlaced_frame)
955 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
957 enc->field_order = AV_FIELD_PROGRESSIVE;
958 pkt.data = (uint8_t *)in_picture;
959 pkt.size = sizeof(AVPicture);
960 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
961 pkt.flags |= AV_PKT_FLAG_KEY;
963 write_frame(s, &pkt, ost);
965 int got_packet, forced_keyframe = 0;
968 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
969 ost->top_field_first >= 0)
970 in_picture->top_field_first = !!ost->top_field_first;
972 if (in_picture->interlaced_frame) {
973 if (enc->codec->id == AV_CODEC_ID_MJPEG)
974 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
976 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
978 enc->field_order = AV_FIELD_PROGRESSIVE;
980 in_picture->quality = ost->st->codec->global_quality;
981 if (!enc->me_threshold)
982 in_picture->pict_type = 0;
984 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
985 in_picture->pts * av_q2d(enc->time_base) : NAN;
986 if (ost->forced_kf_index < ost->forced_kf_count &&
987 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
988 ost->forced_kf_index++;
990 } else if (ost->forced_keyframes_pexpr) {
992 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
993 res = av_expr_eval(ost->forced_keyframes_pexpr,
994 ost->forced_keyframes_expr_const_values, NULL);
995 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
996 ost->forced_keyframes_expr_const_values[FKF_N],
997 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
998 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
999 ost->forced_keyframes_expr_const_values[FKF_T],
1000 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
1003 forced_keyframe = 1;
1004 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
1005 ost->forced_keyframes_expr_const_values[FKF_N];
1006 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
1007 ost->forced_keyframes_expr_const_values[FKF_T];
1008 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
1011 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
1014 if (forced_keyframe) {
1015 in_picture->pict_type = AV_PICTURE_TYPE_I;
1016 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1019 update_benchmark(NULL);
1021 av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1022 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1023 av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1024 enc->time_base.num, enc->time_base.den);
1027 ost->frames_encoded++;
1029 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1030 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1032 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1038 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1039 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1040 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1041 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1044 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1045 pkt.pts = ost->sync_opts;
1047 if (pkt.pts != AV_NOPTS_VALUE)
1048 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1049 if (pkt.dts != AV_NOPTS_VALUE)
1050 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1053 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1054 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1055 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1056 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1059 frame_size = pkt.size;
1060 write_frame(s, &pkt, ost);
1062 /* if two pass, output log */
1063 if (ost->logfile && enc->stats_out) {
1064 fprintf(ost->logfile, "%s", enc->stats_out);
1070 * For video, number of frames in == number of packets out.
1071 * But there may be reordering, so we can't throw away frames on encoder
1072 * flush, we need to limit them here, before they go into encoder.
1074 ost->frame_number++;
1076 if (vstats_filename && frame_size)
1077 do_video_stats(ost, frame_size);
1081 static double psnr(double d)
1083 return -10.0 * log(d) / log(10.0);
1086 static void do_video_stats(OutputStream *ost, int frame_size)
1088 AVCodecContext *enc;
1090 double ti1, bitrate, avg_bitrate;
1092 /* this is executed just the first time do_video_stats is called */
1094 vstats_file = fopen(vstats_filename, "w");
1101 enc = ost->st->codec;
1102 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1103 frame_number = ost->st->nb_frames;
1104 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1105 if (enc->flags&CODEC_FLAG_PSNR)
1106 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1108 fprintf(vstats_file,"f_size= %6d ", frame_size);
1109 /* compute pts value */
1110 ti1 = ost->last_mux_dts_plus_duration * av_q2d(ost->st->time_base);
1114 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1115 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1116 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1117 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1118 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1123 * Get and encode new output from any of the filtergraphs, without causing
1126 * @return 0 for success, <0 for severe errors
1128 static int reap_filters(void)
1130 AVFrame *filtered_frame = NULL;
1134 /* Reap all buffers present in the buffer sinks */
1135 for (i = 0; i < nb_output_streams; i++) {
1136 OutputStream *ost = output_streams[i];
1137 OutputFile *of = output_files[ost->file_index];
1138 AVFilterContext *filter;
1139 AVCodecContext *enc = ost->st->codec;
1144 filter = ost->filter->filter;
1146 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1147 return AVERROR(ENOMEM);
1149 filtered_frame = ost->filtered_frame;
1152 ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1153 AV_BUFFERSINK_FLAG_NO_REQUEST);
1155 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1156 av_log(NULL, AV_LOG_WARNING,
1157 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1161 if (ost->finished) {
1162 av_frame_unref(filtered_frame);
1165 frame_pts = AV_NOPTS_VALUE;
1166 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1167 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1168 filtered_frame->pts = frame_pts =
1169 av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1170 av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1172 //if (ost->source_index >= 0)
1173 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1175 switch (filter->inputs[0]->type) {
1176 case AVMEDIA_TYPE_VIDEO:
1177 filtered_frame->pts = frame_pts;
1178 if (!ost->frame_aspect_ratio.num)
1179 enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1182 av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1183 av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1184 enc->time_base.num, enc->time_base.den);
1187 do_video_out(of->ctx, ost, filtered_frame);
1189 case AVMEDIA_TYPE_AUDIO:
1190 filtered_frame->pts = frame_pts;
1191 if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1192 enc->channels != av_frame_get_channels(filtered_frame)) {
1193 av_log(NULL, AV_LOG_ERROR,
1194 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1197 do_audio_out(of->ctx, ost, filtered_frame);
1200 // TODO support subtitle filters
1204 av_frame_unref(filtered_frame);
1211 static void print_final_stats(int64_t total_size)
1213 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1214 uint64_t subtitle_size = 0;
1215 uint64_t data_size = 0;
1216 float percent = -1.0;
1219 for (i = 0; i < nb_output_streams; i++) {
1220 OutputStream *ost = output_streams[i];
1221 switch (ost->st->codec->codec_type) {
1222 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1223 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1224 case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1225 default: other_size += ost->data_size; break;
1227 extra_size += ost->st->codec->extradata_size;
1228 data_size += ost->data_size;
1231 if (data_size && total_size >= data_size)
1232 percent = 100.0 * (total_size - data_size) / data_size;
1234 av_log(NULL, AV_LOG_INFO, "\n");
1235 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
1236 video_size / 1024.0,
1237 audio_size / 1024.0,
1238 subtitle_size / 1024.0,
1239 other_size / 1024.0,
1240 extra_size / 1024.0);
1242 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1244 av_log(NULL, AV_LOG_INFO, "unknown");
1245 av_log(NULL, AV_LOG_INFO, "\n");
1247 /* print verbose per-stream stats */
1248 for (i = 0; i < nb_input_files; i++) {
1249 InputFile *f = input_files[i];
1250 uint64_t total_packets = 0, total_size = 0;
1252 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1253 i, f->ctx->filename);
1255 for (j = 0; j < f->nb_streams; j++) {
1256 InputStream *ist = input_streams[f->ist_index + j];
1257 enum AVMediaType type = ist->st->codec->codec_type;
1259 total_size += ist->data_size;
1260 total_packets += ist->nb_packets;
1262 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1263 i, j, media_type_string(type));
1264 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1265 ist->nb_packets, ist->data_size);
1267 if (ist->decoding_needed) {
1268 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1269 ist->frames_decoded);
1270 if (type == AVMEDIA_TYPE_AUDIO)
1271 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1272 av_log(NULL, AV_LOG_VERBOSE, "; ");
1275 av_log(NULL, AV_LOG_VERBOSE, "\n");
1278 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1279 total_packets, total_size);
1282 for (i = 0; i < nb_output_files; i++) {
1283 OutputFile *of = output_files[i];
1284 uint64_t total_packets = 0, total_size = 0;
1286 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1287 i, of->ctx->filename);
1289 for (j = 0; j < of->ctx->nb_streams; j++) {
1290 OutputStream *ost = output_streams[of->ost_index + j];
1291 enum AVMediaType type = ost->st->codec->codec_type;
1293 total_size += ost->data_size;
1294 total_packets += ost->packets_written;
1296 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1297 i, j, media_type_string(type));
1298 if (ost->encoding_needed) {
1299 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1300 ost->frames_encoded);
1301 if (type == AVMEDIA_TYPE_AUDIO)
1302 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1303 av_log(NULL, AV_LOG_VERBOSE, "; ");
1306 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1307 ost->packets_written, ost->data_size);
1309 av_log(NULL, AV_LOG_VERBOSE, "\n");
1312 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1313 total_packets, total_size);
1315 if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1316 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1320 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1323 AVBPrint buf_script;
1325 AVFormatContext *oc;
1327 AVCodecContext *enc;
1328 int frame_number, vid, i;
1330 int64_t pts = INT64_MIN;
1331 static int64_t last_time = -1;
1332 static int qp_histogram[52];
1333 int hours, mins, secs, us;
1335 if (!print_stats && !is_last_report && !progress_avio)
1338 if (!is_last_report) {
1339 if (last_time == -1) {
1340 last_time = cur_time;
1343 if ((cur_time - last_time) < 500000)
1345 last_time = cur_time;
1349 oc = output_files[0]->ctx;
1351 total_size = avio_size(oc->pb);
1352 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1353 total_size = avio_tell(oc->pb);
1357 av_bprint_init(&buf_script, 0, 1);
1358 for (i = 0; i < nb_output_streams; i++) {
1360 ost = output_streams[i];
1361 enc = ost->st->codec;
1362 if (!ost->stream_copy && enc->coded_frame)
1363 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1364 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1365 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1366 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1367 ost->file_index, ost->index, q);
1369 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1370 float fps, t = (cur_time-timer_start) / 1000000.0;
1372 frame_number = ost->frame_number;
1373 fps = t > 1 ? frame_number / t : 0;
1374 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1375 frame_number, fps < 9.95, fps, q);
1376 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1377 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1378 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1379 ost->file_index, ost->index, q);
1381 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1385 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1387 for (j = 0; j < 32; j++)
1388 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1390 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1392 double error, error_sum = 0;
1393 double scale, scale_sum = 0;
1395 char type[3] = { 'Y','U','V' };
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1397 for (j = 0; j < 3; j++) {
1398 if (is_last_report) {
1399 error = enc->error[j];
1400 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1402 error = enc->coded_frame->error[j];
1403 scale = enc->width * enc->height * 255.0 * 255.0;
1409 p = psnr(error / scale);
1410 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1411 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1412 ost->file_index, ost->index, type[j] | 32, p);
1414 p = psnr(error_sum / scale_sum);
1415 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1416 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1417 ost->file_index, ost->index, p);
1421 /* compute min output value */
1422 if (ost->last_mux_dts_plus_duration != AV_NOPTS_VALUE)
1423 pts = FFMAX(pts, av_rescale_q(ost->last_mux_dts_plus_duration,
1424 ost->st->time_base, AV_TIME_BASE_Q));
1427 secs = pts / AV_TIME_BASE;
1428 us = pts % AV_TIME_BASE;
1434 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1436 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1438 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1439 "size=%8.0fkB time=", total_size / 1024.0);
1440 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1441 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1442 (100 * us) / AV_TIME_BASE);
1443 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1445 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1446 "bitrate=%6.1fkbits/s", bitrate);
1447 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1448 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1449 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1450 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1451 hours, mins, secs, us);
1453 if (nb_frames_dup || nb_frames_drop)
1454 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1455 nb_frames_dup, nb_frames_drop);
1456 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1457 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1459 if (print_stats || is_last_report) {
1460 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1461 fprintf(stderr, "%s \r", buf);
1463 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1468 if (progress_avio) {
1469 av_bprintf(&buf_script, "progress=%s\n",
1470 is_last_report ? "end" : "continue");
1471 avio_write(progress_avio, buf_script.str,
1472 FFMIN(buf_script.len, buf_script.size - 1));
1473 avio_flush(progress_avio);
1474 av_bprint_finalize(&buf_script, NULL);
1475 if (is_last_report) {
1476 avio_close(progress_avio);
1477 progress_avio = NULL;
1482 print_final_stats(total_size);
1485 static void flush_encoders(void)
1489 for (i = 0; i < nb_output_streams; i++) {
1490 OutputStream *ost = output_streams[i];
1491 AVCodecContext *enc = ost->st->codec;
1492 AVFormatContext *os = output_files[ost->file_index]->ctx;
1493 int stop_encoding = 0;
1495 if (!ost->encoding_needed)
1498 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1500 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1504 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1507 switch (ost->st->codec->codec_type) {
1508 case AVMEDIA_TYPE_AUDIO:
1509 encode = avcodec_encode_audio2;
1512 case AVMEDIA_TYPE_VIDEO:
1513 encode = avcodec_encode_video2;
1524 av_init_packet(&pkt);
1528 update_benchmark(NULL);
1529 ret = encode(enc, &pkt, NULL, &got_packet);
1530 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1532 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1535 if (ost->logfile && enc->stats_out) {
1536 fprintf(ost->logfile, "%s", enc->stats_out);
1542 if (ost->finished & MUXER_FINISHED) {
1543 av_free_packet(&pkt);
1546 if (pkt.pts != AV_NOPTS_VALUE)
1547 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1548 if (pkt.dts != AV_NOPTS_VALUE)
1549 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1550 if (pkt.duration > 0)
1551 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1552 pkt_size = pkt.size;
1553 write_frame(os, &pkt, ost);
1554 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1555 do_video_stats(ost, pkt_size);
1566 * Check whether a packet from ist should be written into ost at this time
1568 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1570 OutputFile *of = output_files[ost->file_index];
1571 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1573 if (ost->source_index != ist_index)
1579 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1585 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1587 OutputFile *of = output_files[ost->file_index];
1588 InputFile *f = input_files [ist->file_index];
1589 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1590 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1591 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1595 av_init_packet(&opkt);
1597 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1598 !ost->copy_initial_nonkeyframes)
1601 if (pkt->pts == AV_NOPTS_VALUE) {
1602 if (!ost->frame_number && ist->pts < start_time &&
1603 !ost->copy_prior_start)
1606 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1607 !ost->copy_prior_start)
1611 if (of->recording_time != INT64_MAX &&
1612 ist->pts >= of->recording_time + start_time) {
1613 close_output_stream(ost);
1617 if (f->recording_time != INT64_MAX) {
1618 start_time = f->ctx->start_time;
1619 if (f->start_time != AV_NOPTS_VALUE)
1620 start_time += f->start_time;
1621 if (ist->pts >= f->recording_time + start_time) {
1622 close_output_stream(ost);
1627 /* force the input stream PTS */
1628 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1631 if (pkt->pts != AV_NOPTS_VALUE)
1632 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1634 opkt.pts = AV_NOPTS_VALUE;
1636 if (pkt->dts == AV_NOPTS_VALUE)
1637 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1639 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1640 opkt.dts -= ost_tb_start_time;
1642 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1643 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1645 duration = ist->st->codec->frame_size;
1646 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1647 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1648 ost->st->time_base) - ost_tb_start_time;
1651 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1652 opkt.flags = pkt->flags;
1654 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1655 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1656 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1657 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1658 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1660 if (av_parser_change(ost->parser, ost->st->codec,
1661 &opkt.data, &opkt.size,
1662 pkt->data, pkt->size,
1663 pkt->flags & AV_PKT_FLAG_KEY)) {
1664 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1669 opkt.data = pkt->data;
1670 opkt.size = pkt->size;
1672 av_copy_packet_side_data(&opkt, pkt);
1674 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1675 /* store AVPicture in AVPacket, as expected by the output format */
1676 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1677 opkt.data = (uint8_t *)&pict;
1678 opkt.size = sizeof(AVPicture);
1679 opkt.flags |= AV_PKT_FLAG_KEY;
1682 write_frame(of->ctx, &opkt, ost);
1685 int guess_input_channel_layout(InputStream *ist)
1687 AVCodecContext *dec = ist->st->codec;
1689 if (!dec->channel_layout) {
1690 char layout_name[256];
1692 if (dec->channels > ist->guess_layout_max)
1694 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1695 if (!dec->channel_layout)
1697 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1698 dec->channels, dec->channel_layout);
1699 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1700 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1705 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1707 AVFrame *decoded_frame, *f;
1708 AVCodecContext *avctx = ist->st->codec;
1709 int i, ret, err = 0, resample_changed;
1710 AVRational decoded_frame_tb;
1712 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1713 return AVERROR(ENOMEM);
1714 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1715 return AVERROR(ENOMEM);
1716 decoded_frame = ist->decoded_frame;
1718 update_benchmark(NULL);
1719 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1720 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1722 if (ret >= 0 && avctx->sample_rate <= 0) {
1723 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1724 ret = AVERROR_INVALIDDATA;
1727 if (*got_output || ret<0 || pkt->size)
1728 decode_error_stat[ret<0] ++;
1730 if (!*got_output || ret < 0) {
1732 for (i = 0; i < ist->nb_filters; i++)
1734 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1736 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1742 ist->samples_decoded += decoded_frame->nb_samples;
1743 ist->frames_decoded++;
1746 /* increment next_dts to use for the case where the input stream does not
1747 have timestamps or there are multiple frames in the packet */
1748 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1750 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1754 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1755 ist->resample_channels != avctx->channels ||
1756 ist->resample_channel_layout != decoded_frame->channel_layout ||
1757 ist->resample_sample_rate != decoded_frame->sample_rate;
1758 if (resample_changed) {
1759 char layout1[64], layout2[64];
1761 if (!guess_input_channel_layout(ist)) {
1762 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1763 "layout for Input Stream #%d.%d\n", ist->file_index,
1767 decoded_frame->channel_layout = avctx->channel_layout;
1769 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1770 ist->resample_channel_layout);
1771 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1772 decoded_frame->channel_layout);
1774 av_log(NULL, AV_LOG_INFO,
1775 "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",
1776 ist->file_index, ist->st->index,
1777 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1778 ist->resample_channels, layout1,
1779 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1780 avctx->channels, layout2);
1782 ist->resample_sample_fmt = decoded_frame->format;
1783 ist->resample_sample_rate = decoded_frame->sample_rate;
1784 ist->resample_channel_layout = decoded_frame->channel_layout;
1785 ist->resample_channels = avctx->channels;
1787 for (i = 0; i < nb_filtergraphs; i++)
1788 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1789 FilterGraph *fg = filtergraphs[i];
1791 if (configure_filtergraph(fg) < 0) {
1792 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1795 for (j = 0; j < fg->nb_outputs; j++) {
1796 OutputStream *ost = fg->outputs[j]->ost;
1797 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1798 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1799 av_buffersink_set_frame_size(ost->filter->filter,
1800 ost->st->codec->frame_size);
1805 /* if the decoder provides a pts, use it instead of the last packet pts.
1806 the decoder could be delaying output by a packet or more. */
1807 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1808 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1809 decoded_frame_tb = avctx->time_base;
1810 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1811 decoded_frame->pts = decoded_frame->pkt_pts;
1812 decoded_frame_tb = ist->st->time_base;
1813 } else if (pkt->pts != AV_NOPTS_VALUE) {
1814 decoded_frame->pts = pkt->pts;
1815 decoded_frame_tb = ist->st->time_base;
1817 decoded_frame->pts = ist->dts;
1818 decoded_frame_tb = AV_TIME_BASE_Q;
1820 pkt->pts = AV_NOPTS_VALUE;
1821 if (decoded_frame->pts != AV_NOPTS_VALUE)
1822 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1823 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1824 (AVRational){1, ist->st->codec->sample_rate});
1825 for (i = 0; i < ist->nb_filters; i++) {
1826 if (i < ist->nb_filters - 1) {
1827 f = ist->filter_frame;
1828 err = av_frame_ref(f, decoded_frame);
1833 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1834 AV_BUFFERSRC_FLAG_PUSH);
1835 if (err == AVERROR_EOF)
1836 err = 0; /* ignore */
1840 decoded_frame->pts = AV_NOPTS_VALUE;
1842 av_frame_unref(ist->filter_frame);
1843 av_frame_unref(decoded_frame);
1844 return err < 0 ? err : ret;
1847 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1849 AVFrame *decoded_frame, *f;
1850 int i, ret = 0, err = 0, resample_changed;
1851 int64_t best_effort_timestamp;
1852 AVRational *frame_sample_aspect;
1854 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1855 return AVERROR(ENOMEM);
1856 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1857 return AVERROR(ENOMEM);
1858 decoded_frame = ist->decoded_frame;
1859 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1861 update_benchmark(NULL);
1862 ret = avcodec_decode_video2(ist->st->codec,
1863 decoded_frame, got_output, pkt);
1864 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1866 if (*got_output || ret<0 || pkt->size)
1867 decode_error_stat[ret<0] ++;
1869 if (!*got_output || ret < 0) {
1871 for (i = 0; i < ist->nb_filters; i++)
1873 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1875 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1881 if(ist->top_field_first>=0)
1882 decoded_frame->top_field_first = ist->top_field_first;
1884 ist->frames_decoded++;
1886 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1887 err = ist->hwaccel_retrieve_data(ist->st->codec, decoded_frame);
1891 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1893 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1894 if(best_effort_timestamp != AV_NOPTS_VALUE)
1895 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1898 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1899 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
1900 ist->st->index, av_ts2str(decoded_frame->pts),
1901 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1902 best_effort_timestamp,
1903 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1904 decoded_frame->key_frame, decoded_frame->pict_type,
1905 ist->st->time_base.num, ist->st->time_base.den);
1910 if (ist->st->sample_aspect_ratio.num)
1911 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1913 resample_changed = ist->resample_width != decoded_frame->width ||
1914 ist->resample_height != decoded_frame->height ||
1915 ist->resample_pix_fmt != decoded_frame->format;
1916 if (resample_changed) {
1917 av_log(NULL, AV_LOG_INFO,
1918 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1919 ist->file_index, ist->st->index,
1920 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1921 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1923 ist->resample_width = decoded_frame->width;
1924 ist->resample_height = decoded_frame->height;
1925 ist->resample_pix_fmt = decoded_frame->format;
1927 for (i = 0; i < nb_filtergraphs; i++) {
1928 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1929 configure_filtergraph(filtergraphs[i]) < 0) {
1930 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1936 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1937 for (i = 0; i < ist->nb_filters; i++) {
1938 if (!frame_sample_aspect->num)
1939 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1941 if (i < ist->nb_filters - 1) {
1942 f = ist->filter_frame;
1943 err = av_frame_ref(f, decoded_frame);
1948 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1949 if (ret == AVERROR_EOF) {
1950 ret = 0; /* ignore */
1951 } else if (ret < 0) {
1952 av_log(NULL, AV_LOG_FATAL,
1953 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1959 av_frame_unref(ist->filter_frame);
1960 av_frame_unref(decoded_frame);
1961 return err < 0 ? err : ret;
1964 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1966 AVSubtitle subtitle;
1967 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1968 &subtitle, got_output, pkt);
1970 if (*got_output || ret<0 || pkt->size)
1971 decode_error_stat[ret<0] ++;
1973 if (ret < 0 || !*got_output) {
1975 sub2video_flush(ist);
1979 if (ist->fix_sub_duration) {
1981 if (ist->prev_sub.got_output) {
1982 end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1983 1000, AV_TIME_BASE);
1984 if (end < ist->prev_sub.subtitle.end_display_time) {
1985 av_log(ist->st->codec, AV_LOG_DEBUG,
1986 "Subtitle duration reduced from %d to %d%s\n",
1987 ist->prev_sub.subtitle.end_display_time, end,
1988 end <= 0 ? ", dropping it" : "");
1989 ist->prev_sub.subtitle.end_display_time = end;
1992 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1993 FFSWAP(int, ret, ist->prev_sub.ret);
1994 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
2002 sub2video_update(ist, &subtitle);
2004 if (!subtitle.num_rects)
2007 ist->frames_decoded++;
2009 for (i = 0; i < nb_output_streams; i++) {
2010 OutputStream *ost = output_streams[i];
2012 if (!check_output_constraints(ist, ost) || !ost->encoding_needed
2013 || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
2016 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2020 avsubtitle_free(&subtitle);
2024 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2025 static int output_packet(InputStream *ist, const AVPacket *pkt)
2031 if (!ist->saw_first_ts) {
2032 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;
2034 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2035 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2036 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2038 ist->saw_first_ts = 1;
2041 if (ist->next_dts == AV_NOPTS_VALUE)
2042 ist->next_dts = ist->dts;
2043 if (ist->next_pts == AV_NOPTS_VALUE)
2044 ist->next_pts = ist->pts;
2048 av_init_packet(&avpkt);
2056 if (pkt->dts != AV_NOPTS_VALUE) {
2057 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2058 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2059 ist->next_pts = ist->pts = ist->dts;
2062 // while we have more to decode or while the decoder did output something on EOF
2063 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2067 ist->pts = ist->next_pts;
2068 ist->dts = ist->next_dts;
2070 if (avpkt.size && avpkt.size != pkt->size &&
2071 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2072 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2073 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2074 ist->showed_multi_packet_warning = 1;
2077 switch (ist->st->codec->codec_type) {
2078 case AVMEDIA_TYPE_AUDIO:
2079 ret = decode_audio (ist, &avpkt, &got_output);
2081 case AVMEDIA_TYPE_VIDEO:
2082 ret = decode_video (ist, &avpkt, &got_output);
2083 if (avpkt.duration) {
2084 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2085 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
2086 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
2087 duration = ((int64_t)AV_TIME_BASE *
2088 ist->st->codec->time_base.num * ticks) /
2089 ist->st->codec->time_base.den;
2093 if(ist->dts != AV_NOPTS_VALUE && duration) {
2094 ist->next_dts += duration;
2096 ist->next_dts = AV_NOPTS_VALUE;
2099 ist->next_pts += duration; //FIXME the duration is not correct in some cases
2101 case AVMEDIA_TYPE_SUBTITLE:
2102 ret = transcode_subtitles(ist, &avpkt, &got_output);
2112 avpkt.pts= AV_NOPTS_VALUE;
2114 // touch data and size only if not EOF
2116 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
2126 /* handle stream copy */
2127 if (!ist->decoding_needed) {
2128 ist->dts = ist->next_dts;
2129 switch (ist->st->codec->codec_type) {
2130 case AVMEDIA_TYPE_AUDIO:
2131 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2132 ist->st->codec->sample_rate;
2134 case AVMEDIA_TYPE_VIDEO:
2135 if (ist->framerate.num) {
2136 // TODO: Remove work-around for c99-to-c89 issue 7
2137 AVRational time_base_q = AV_TIME_BASE_Q;
2138 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2139 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2140 } else if (pkt->duration) {
2141 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2142 } else if(ist->st->codec->time_base.num != 0) {
2143 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2144 ist->next_dts += ((int64_t)AV_TIME_BASE *
2145 ist->st->codec->time_base.num * ticks) /
2146 ist->st->codec->time_base.den;
2150 ist->pts = ist->dts;
2151 ist->next_pts = ist->next_dts;
2153 for (i = 0; pkt && i < nb_output_streams; i++) {
2154 OutputStream *ost = output_streams[i];
2156 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2159 do_streamcopy(ist, ost, pkt);
2165 static void print_sdp(void)
2169 AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
2173 for (i = 0; i < nb_output_files; i++)
2174 avc[i] = output_files[i]->ctx;
2176 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2177 printf("SDP:\n%s\n", sdp);
2182 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
2185 for (i = 0; hwaccels[i].name; i++)
2186 if (hwaccels[i].pix_fmt == pix_fmt)
2187 return &hwaccels[i];
2191 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2193 InputStream *ist = s->opaque;
2194 const enum AVPixelFormat *p;
2197 for (p = pix_fmts; *p != -1; p++) {
2198 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2199 const HWAccel *hwaccel;
2201 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2204 hwaccel = get_hwaccel(*p);
2206 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2207 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2210 ret = hwaccel->init(s);
2212 if (ist->hwaccel_id == hwaccel->id) {
2213 av_log(NULL, AV_LOG_FATAL,
2214 "%s hwaccel requested for input stream #%d:%d, "
2215 "but cannot be initialized.\n", hwaccel->name,
2216 ist->file_index, ist->st->index);
2221 ist->active_hwaccel_id = hwaccel->id;
2222 ist->hwaccel_pix_fmt = *p;
2229 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
2231 InputStream *ist = s->opaque;
2233 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2234 return ist->hwaccel_get_buffer(s, frame, flags);
2236 return avcodec_default_get_buffer2(s, frame, flags);
2239 static int init_input_stream(int ist_index, char *error, int error_len)
2242 InputStream *ist = input_streams[ist_index];
2244 if (ist->decoding_needed) {
2245 AVCodec *codec = ist->dec;
2247 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2248 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2249 return AVERROR(EINVAL);
2252 ist->st->codec->opaque = ist;
2253 ist->st->codec->get_format = get_format;
2254 ist->st->codec->get_buffer2 = get_buffer;
2255 ist->st->codec->thread_safe_callbacks = 1;
2257 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
2259 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
2260 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
2261 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->decoder_opts)) < 0) {
2262 if (ret == AVERROR_EXPERIMENTAL)
2263 abort_codec_experimental(codec, 0);
2265 snprintf(error, error_len,
2266 "Error while opening decoder for input stream "
2268 ist->file_index, ist->st->index, av_err2str(ret));
2271 assert_avoptions(ist->decoder_opts);
2274 ist->next_pts = AV_NOPTS_VALUE;
2275 ist->next_dts = AV_NOPTS_VALUE;
2280 static InputStream *get_input_stream(OutputStream *ost)
2282 if (ost->source_index >= 0)
2283 return input_streams[ost->source_index];
2287 static int compare_int64(const void *a, const void *b)
2289 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2290 return va < vb ? -1 : va > vb ? +1 : 0;
2293 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2294 AVCodecContext *avctx)
2297 int n = 1, i, size, index = 0;
2300 for (p = kf; *p; p++)
2304 pts = av_malloc_array(size, sizeof(*pts));
2306 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2311 for (i = 0; i < n; i++) {
2312 char *next = strchr(p, ',');
2317 if (!memcmp(p, "chapters", 8)) {
2319 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2322 if (avf->nb_chapters > INT_MAX - size ||
2323 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2325 av_log(NULL, AV_LOG_FATAL,
2326 "Could not allocate forced key frames array.\n");
2329 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2330 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2332 for (j = 0; j < avf->nb_chapters; j++) {
2333 AVChapter *c = avf->chapters[j];
2334 av_assert1(index < size);
2335 pts[index++] = av_rescale_q(c->start, c->time_base,
2336 avctx->time_base) + t;
2341 t = parse_time_or_die("force_key_frames", p, 1);
2342 av_assert1(index < size);
2343 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2350 av_assert0(index == size);
2351 qsort(pts, size, sizeof(*pts), compare_int64);
2352 ost->forced_kf_count = size;
2353 ost->forced_kf_pts = pts;
2356 static void report_new_stream(int input_index, AVPacket *pkt)
2358 InputFile *file = input_files[input_index];
2359 AVStream *st = file->ctx->streams[pkt->stream_index];
2361 if (pkt->stream_index < file->nb_streams_warn)
2363 av_log(file->ctx, AV_LOG_WARNING,
2364 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2365 av_get_media_type_string(st->codec->codec_type),
2366 input_index, pkt->stream_index,
2367 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2368 file->nb_streams_warn = pkt->stream_index + 1;
2371 static void set_encoder_id(OutputFile *of, OutputStream *ost)
2373 AVDictionaryEntry *e;
2375 uint8_t *encoder_string;
2376 int encoder_string_len;
2377 int format_flags = 0;
2378 int codec_flags = 0;
2380 if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
2383 e = av_dict_get(of->opts, "fflags", NULL, 0);
2385 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
2388 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
2390 e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
2392 const AVOption *o = av_opt_find(ost->st->codec, "flags", NULL, 0, 0);
2395 av_opt_eval_flags(ost->st->codec, o, e->value, &codec_flags);
2398 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
2399 encoder_string = av_mallocz(encoder_string_len);
2400 if (!encoder_string)
2403 if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
2404 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
2406 av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
2407 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
2408 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
2409 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
2412 static int transcode_init(void)
2414 int ret = 0, i, j, k;
2415 AVFormatContext *oc;
2421 for (i = 0; i < nb_filtergraphs; i++) {
2422 FilterGraph *fg = filtergraphs[i];
2423 for (j = 0; j < fg->nb_outputs; j++) {
2424 OutputFilter *ofilter = fg->outputs[j];
2425 if (!ofilter->ost || ofilter->ost->source_index >= 0)
2427 if (fg->nb_inputs != 1)
2429 for (k = nb_input_streams-1; k >= 0 ; k--)
2430 if (fg->inputs[0]->ist == input_streams[k])
2432 ofilter->ost->source_index = k;
2436 /* init framerate emulation */
2437 for (i = 0; i < nb_input_files; i++) {
2438 InputFile *ifile = input_files[i];
2439 if (ifile->rate_emu)
2440 for (j = 0; j < ifile->nb_streams; j++)
2441 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2444 /* output stream init */
2445 for (i = 0; i < nb_output_files; i++) {
2446 oc = output_files[i]->ctx;
2447 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2448 av_dump_format(oc, i, oc->filename, 1);
2449 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2450 return AVERROR(EINVAL);
2454 /* init complex filtergraphs */
2455 for (i = 0; i < nb_filtergraphs; i++)
2456 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2459 /* for each output stream, we compute the right encoding parameters */
2460 for (i = 0; i < nb_output_streams; i++) {
2461 AVCodecContext *enc_ctx;
2462 AVCodecContext *dec_ctx = NULL;
2463 ost = output_streams[i];
2464 oc = output_files[ost->file_index]->ctx;
2465 ist = get_input_stream(ost);
2467 if (ost->attachment_filename)
2470 enc_ctx = ost->st->codec;
2473 dec_ctx = ist->st->codec;
2475 ost->st->disposition = ist->st->disposition;
2476 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
2477 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
2479 for (j=0; j<oc->nb_streams; j++) {
2480 AVStream *st = oc->streams[j];
2481 if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
2484 if (j == oc->nb_streams)
2485 if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
2486 ost->st->disposition = AV_DISPOSITION_DEFAULT;
2489 if (ost->stream_copy) {
2491 uint64_t extra_size;
2493 av_assert0(ist && !ost->filter);
2495 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2497 if (extra_size > INT_MAX) {
2498 return AVERROR(EINVAL);
2501 /* if stream_copy is selected, no need to decode or encode */
2502 enc_ctx->codec_id = dec_ctx->codec_id;
2503 enc_ctx->codec_type = dec_ctx->codec_type;
2505 if (!enc_ctx->codec_tag) {
2506 unsigned int codec_tag;
2507 if (!oc->oformat->codec_tag ||
2508 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
2509 !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
2510 enc_ctx->codec_tag = dec_ctx->codec_tag;
2513 enc_ctx->bit_rate = dec_ctx->bit_rate;
2514 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
2515 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
2516 enc_ctx->field_order = dec_ctx->field_order;
2517 enc_ctx->extradata = av_mallocz(extra_size);
2518 if (!enc_ctx->extradata) {
2519 return AVERROR(ENOMEM);
2521 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
2522 enc_ctx->extradata_size= dec_ctx->extradata_size;
2523 enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample;
2525 enc_ctx->time_base = ist->st->time_base;
2527 * Avi is a special case here because it supports variable fps but
2528 * having the fps and timebase differe significantly adds quite some
2531 if(!strcmp(oc->oformat->name, "avi")) {
2532 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2533 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2534 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base)
2535 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
2537 enc_ctx->time_base.num = ist->st->r_frame_rate.den;
2538 enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
2539 enc_ctx->ticks_per_frame = 2;
2540 } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2541 && av_q2d(ist->st->time_base) < 1.0/500
2543 enc_ctx->time_base = dec_ctx->time_base;
2544 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2545 enc_ctx->time_base.den *= 2;
2546 enc_ctx->ticks_per_frame = 2;
2548 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2549 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2550 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2551 && strcmp(oc->oformat->name, "f4v")
2553 if( copy_tb<0 && dec_ctx->time_base.den
2554 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
2555 && av_q2d(ist->st->time_base) < 1.0/500
2557 enc_ctx->time_base = dec_ctx->time_base;
2558 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
2561 if ( enc_ctx->codec_tag == AV_RL32("tmcd")
2562 && dec_ctx->time_base.num < dec_ctx->time_base.den
2563 && dec_ctx->time_base.num > 0
2564 && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
2565 enc_ctx->time_base = dec_ctx->time_base;
2568 if (ist && !ost->frame_rate.num)
2569 ost->frame_rate = ist->framerate;
2570 if(ost->frame_rate.num)
2571 enc_ctx->time_base = av_inv_q(ost->frame_rate);
2573 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
2574 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
2576 ost->parser = av_parser_init(enc_ctx->codec_id);
2578 switch (enc_ctx->codec_type) {
2579 case AVMEDIA_TYPE_AUDIO:
2580 if (audio_volume != 256) {
2581 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2584 enc_ctx->channel_layout = dec_ctx->channel_layout;
2585 enc_ctx->sample_rate = dec_ctx->sample_rate;
2586 enc_ctx->channels = dec_ctx->channels;
2587 enc_ctx->frame_size = dec_ctx->frame_size;
2588 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
2589 enc_ctx->block_align = dec_ctx->block_align;
2590 enc_ctx->delay = dec_ctx->delay;
2591 if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
2592 enc_ctx->block_align= 0;
2593 if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
2594 enc_ctx->block_align= 0;
2596 case AVMEDIA_TYPE_VIDEO:
2597 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
2598 enc_ctx->width = dec_ctx->width;
2599 enc_ctx->height = dec_ctx->height;
2600 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
2601 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2603 av_mul_q(ost->frame_aspect_ratio,
2604 (AVRational){ enc_ctx->height, enc_ctx->width });
2605 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2606 "with stream copy may produce invalid files\n");
2608 else if (ist->st->sample_aspect_ratio.num)
2609 sar = ist->st->sample_aspect_ratio;
2611 sar = dec_ctx->sample_aspect_ratio;
2612 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
2613 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2615 case AVMEDIA_TYPE_SUBTITLE:
2616 enc_ctx->width = dec_ctx->width;
2617 enc_ctx->height = dec_ctx->height;
2619 case AVMEDIA_TYPE_DATA:
2620 case AVMEDIA_TYPE_ATTACHMENT:
2627 ost->enc = avcodec_find_encoder(enc_ctx->codec_id);
2629 /* should only happen when a default codec is not present. */
2630 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2631 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2632 ret = AVERROR(EINVAL);
2637 ist->decoding_needed++;
2638 ost->encoding_needed = 1;
2640 set_encoder_id(output_files[ost->file_index], ost);
2643 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2644 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2646 fg = init_simple_filtergraph(ist, ost);
2647 if (configure_filtergraph(fg)) {
2648 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2653 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
2654 if (ost->filter && !ost->frame_rate.num)
2655 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2656 if (ist && !ost->frame_rate.num)
2657 ost->frame_rate = ist->framerate;
2658 if (ist && !ost->frame_rate.num)
2659 ost->frame_rate = ist->st->r_frame_rate;
2660 if (ist && !ost->frame_rate.num) {
2661 ost->frame_rate = (AVRational){25, 1};
2662 av_log(NULL, AV_LOG_WARNING,
2664 "about the input framerate is available. Falling "
2665 "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2666 "if you want a different framerate.\n",
2667 ost->file_index, ost->index);
2669 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2670 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2671 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2672 ost->frame_rate = ost->enc->supported_framerates[idx];
2674 if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
2675 av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2676 ost->frame_rate.num, ost->frame_rate.den, 65535);
2680 switch (enc_ctx->codec_type) {
2681 case AVMEDIA_TYPE_AUDIO:
2682 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2683 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2684 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2685 enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2686 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2688 case AVMEDIA_TYPE_VIDEO:
2689 enc_ctx->time_base = av_inv_q(ost->frame_rate);
2690 if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den))
2691 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2692 if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2693 && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2694 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2695 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2697 for (j = 0; j < ost->forced_kf_count; j++)
2698 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2700 enc_ctx->time_base);
2702 enc_ctx->width = ost->filter->filter->inputs[0]->w;
2703 enc_ctx->height = ost->filter->filter->inputs[0]->h;
2704 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2705 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2706 av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
2707 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2708 if (!strncmp(ost->enc->name, "libx264", 7) &&
2709 enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2710 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2711 av_log(NULL, AV_LOG_WARNING,
2712 "No pixel format specified, %s for H.264 encoding chosen.\n"
2713 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2714 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2715 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2716 enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
2717 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2718 av_log(NULL, AV_LOG_WARNING,
2719 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2720 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2721 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2722 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2724 ost->st->avg_frame_rate = ost->frame_rate;
2727 enc_ctx->width != dec_ctx->width ||
2728 enc_ctx->height != dec_ctx->height ||
2729 enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
2730 enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
2733 if (ost->forced_keyframes) {
2734 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2735 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2736 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2738 av_log(NULL, AV_LOG_ERROR,
2739 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2742 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2743 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2744 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2745 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2747 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2751 case AVMEDIA_TYPE_SUBTITLE:
2752 enc_ctx->time_base = (AVRational){1, 1000};
2753 if (!enc_ctx->width) {
2754 enc_ctx->width = input_streams[ost->source_index]->st->codec->width;
2755 enc_ctx->height = input_streams[ost->source_index]->st->codec->height;
2763 if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2764 char logfilename[1024];
2767 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2768 ost->logfile_prefix ? ost->logfile_prefix :
2769 DEFAULT_PASS_LOGFILENAME_PREFIX,
2771 if (!strcmp(ost->enc->name, "libx264")) {
2772 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2774 if (enc_ctx->flags & CODEC_FLAG_PASS2) {
2776 size_t logbuffer_size;
2777 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2778 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2782 enc_ctx->stats_in = logbuffer;
2784 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
2785 f = av_fopen_utf8(logfilename, "wb");
2787 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2788 logfilename, strerror(errno));
2798 /* open each encoder */
2799 for (i = 0; i < nb_output_streams; i++) {
2800 ost = output_streams[i];
2801 if (ost->encoding_needed) {
2802 AVCodec *codec = ost->enc;
2803 AVCodecContext *dec = NULL;
2805 if ((ist = get_input_stream(ost)))
2806 dec = ist->st->codec;
2807 if (dec && dec->subtitle_header) {
2808 /* ASS code assumes this buffer is null terminated so add extra byte. */
2809 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2810 if (!ost->st->codec->subtitle_header) {
2811 ret = AVERROR(ENOMEM);
2814 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2815 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2817 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2818 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2819 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
2820 if (ret == AVERROR_EXPERIMENTAL)
2821 abort_codec_experimental(codec, 1);
2822 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2823 ost->file_index, ost->index);
2826 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2827 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2828 av_buffersink_set_frame_size(ost->filter->filter,
2829 ost->st->codec->frame_size);
2830 assert_avoptions(ost->encoder_opts);
2831 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2832 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2833 " It takes bits/s as argument, not kbits/s\n");
2835 av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
2839 /* init input streams */
2840 for (i = 0; i < nb_input_streams; i++)
2841 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2842 for (i = 0; i < nb_output_streams; i++) {
2843 ost = output_streams[i];
2844 avcodec_close(ost->st->codec);
2849 /* discard unused programs */
2850 for (i = 0; i < nb_input_files; i++) {
2851 InputFile *ifile = input_files[i];
2852 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2853 AVProgram *p = ifile->ctx->programs[j];
2854 int discard = AVDISCARD_ALL;
2856 for (k = 0; k < p->nb_stream_indexes; k++)
2857 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2858 discard = AVDISCARD_DEFAULT;
2861 p->discard = discard;
2865 /* open files and write file headers */
2866 for (i = 0; i < nb_output_files; i++) {
2867 oc = output_files[i]->ctx;
2868 oc->interrupt_callback = int_cb;
2869 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2870 snprintf(error, sizeof(error),
2871 "Could not write header for output file #%d "
2872 "(incorrect codec parameters ?): %s",
2873 i, av_err2str(ret));
2874 ret = AVERROR(EINVAL);
2877 // assert_avoptions(output_files[i]->opts);
2878 if (strcmp(oc->oformat->name, "rtp")) {
2884 /* dump the file output parameters - cannot be done before in case
2886 for (i = 0; i < nb_output_files; i++) {
2887 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2890 /* dump the stream mapping */
2891 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2892 for (i = 0; i < nb_input_streams; i++) {
2893 ist = input_streams[i];
2895 for (j = 0; j < ist->nb_filters; j++) {
2896 if (ist->filters[j]->graph->graph_desc) {
2897 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2898 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2899 ist->filters[j]->name);
2900 if (nb_filtergraphs > 1)
2901 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2902 av_log(NULL, AV_LOG_INFO, "\n");
2907 for (i = 0; i < nb_output_streams; i++) {
2908 ost = output_streams[i];
2910 if (ost->attachment_filename) {
2911 /* an attached file */
2912 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2913 ost->attachment_filename, ost->file_index, ost->index);
2917 if (ost->filter && ost->filter->graph->graph_desc) {
2918 /* output from a complex graph */
2919 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2920 if (nb_filtergraphs > 1)
2921 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2923 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2924 ost->index, ost->enc ? ost->enc->name : "?");
2928 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2929 input_streams[ost->source_index]->file_index,
2930 input_streams[ost->source_index]->st->index,
2933 if (ost->sync_ist != input_streams[ost->source_index])
2934 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2935 ost->sync_ist->file_index,
2936 ost->sync_ist->st->index);
2937 if (ost->stream_copy)
2938 av_log(NULL, AV_LOG_INFO, " (copy)");
2940 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2941 input_streams[ost->source_index]->dec->name : "?",
2942 ost->enc ? ost->enc->name : "?");
2943 av_log(NULL, AV_LOG_INFO, "\n");
2947 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2955 transcode_init_done = 1;
2960 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2961 static int need_output(void)
2965 for (i = 0; i < nb_output_streams; i++) {
2966 OutputStream *ost = output_streams[i];
2967 OutputFile *of = output_files[ost->file_index];
2968 AVFormatContext *os = output_files[ost->file_index]->ctx;
2970 if (ost->finished ||
2971 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2973 if (ost->frame_number >= ost->max_frames) {
2975 for (j = 0; j < of->ctx->nb_streams; j++)
2976 close_output_stream(output_streams[of->ost_index + j]);
2987 * Select the output stream to process.
2989 * @return selected output stream, or NULL if none available
2991 static OutputStream *choose_output(void)
2994 int64_t opts_min = INT64_MAX;
2995 OutputStream *ost_min = NULL;
2997 for (i = 0; i < nb_output_streams; i++) {
2998 OutputStream *ost = output_streams[i];
2999 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
3001 if (!ost->unavailable && !ost->finished && opts < opts_min) {
3009 static int check_keyboard_interaction(int64_t cur_time)
3012 static int64_t last_time;
3013 if (received_nb_signals)
3014 return AVERROR_EXIT;
3015 /* read_key() returns 0 on EOF */
3016 if(cur_time - last_time >= 100000 && !run_as_daemon){
3018 last_time = cur_time;
3022 return AVERROR_EXIT;
3023 if (key == '+') av_log_set_level(av_log_get_level()+10);
3024 if (key == '-') av_log_set_level(av_log_get_level()-10);
3025 if (key == 's') qp_hist ^= 1;
3028 do_hex_dump = do_pkt_dump = 0;
3029 } else if(do_pkt_dump){
3033 av_log_set_level(AV_LOG_DEBUG);
3035 if (key == 'c' || key == 'C'){
3036 char buf[4096], target[64], command[256], arg[256] = {0};
3039 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
3041 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3046 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3047 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3048 target, time, command, arg);
3049 for (i = 0; i < nb_filtergraphs; i++) {
3050 FilterGraph *fg = filtergraphs[i];
3053 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3054 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3055 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
3056 } else if (key == 'c') {
3057 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
3058 ret = AVERROR_PATCHWELCOME;
3060 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3065 av_log(NULL, AV_LOG_ERROR,
3066 "Parse error, at least 3 arguments were expected, "
3067 "only %d given in string '%s'\n", n, buf);
3070 if (key == 'd' || key == 'D'){
3073 debug = input_streams[0]->st->codec->debug<<1;
3074 if(!debug) debug = 1;
3075 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3078 if(scanf("%d", &debug)!=1)
3079 fprintf(stderr,"error parsing debug value\n");
3080 for(i=0;i<nb_input_streams;i++) {
3081 input_streams[i]->st->codec->debug = debug;
3083 for(i=0;i<nb_output_streams;i++) {
3084 OutputStream *ost = output_streams[i];
3085 ost->st->codec->debug = debug;
3087 if(debug) av_log_set_level(AV_LOG_DEBUG);
3088 fprintf(stderr,"debug=%d\n", debug);
3091 fprintf(stderr, "key function\n"
3092 "? show this help\n"
3093 "+ increase verbosity\n"
3094 "- decrease verbosity\n"
3095 "c Send command to first matching filter supporting it\n"
3096 "C Send/Que command to all matching filters\n"
3097 "D cycle through available debug modes\n"
3098 "h dump packets/hex press to cycle through the 3 states\n"
3100 "s Show QP histogram\n"
3107 static void *input_thread(void *arg)
3112 while (!transcoding_finished && ret >= 0) {
3114 ret = av_read_frame(f->ctx, &pkt);
3116 if (ret == AVERROR(EAGAIN)) {
3123 pthread_mutex_lock(&f->fifo_lock);
3124 while (!av_fifo_space(f->fifo))
3125 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
3127 av_dup_packet(&pkt);
3128 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
3129 pthread_cond_signal(&f->fifo_cond);
3131 pthread_mutex_unlock(&f->fifo_lock);
3134 pthread_mutex_lock(&f->fifo_lock);
3136 pthread_cond_signal(&f->fifo_cond);
3137 pthread_mutex_unlock(&f->fifo_lock);
3141 static void free_input_threads(void)
3145 if (nb_input_files == 1)
3148 transcoding_finished = 1;
3150 for (i = 0; i < nb_input_files; i++) {
3151 InputFile *f = input_files[i];
3154 if (!f->fifo || f->joined)
3157 pthread_mutex_lock(&f->fifo_lock);
3158 while (av_fifo_size(f->fifo)) {
3159 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3160 av_free_packet(&pkt);
3162 pthread_cond_signal(&f->fifo_cond);
3163 pthread_mutex_unlock(&f->fifo_lock);
3165 pthread_join(f->thread, NULL);
3168 while (av_fifo_size(f->fifo)) {
3169 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3170 av_free_packet(&pkt);
3172 av_fifo_freep(&f->fifo);
3176 static int init_input_threads(void)
3180 if (nb_input_files == 1)
3183 for (i = 0; i < nb_input_files; i++) {
3184 InputFile *f = input_files[i];
3186 if (!(f->fifo = av_fifo_alloc_array(8, sizeof(AVPacket))))
3187 return AVERROR(ENOMEM);
3189 if (f->ctx->pb ? !f->ctx->pb->seekable :
3190 strcmp(f->ctx->iformat->name, "lavfi"))
3191 f->non_blocking = 1;
3193 pthread_mutex_init(&f->fifo_lock, NULL);
3194 pthread_cond_init (&f->fifo_cond, NULL);
3196 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
3197 return AVERROR(ret);
3202 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3206 pthread_mutex_lock(&f->fifo_lock);
3209 if (av_fifo_size(f->fifo)) {
3210 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
3211 pthread_cond_signal(&f->fifo_cond);
3218 if (f->non_blocking) {
3219 ret = AVERROR(EAGAIN);
3222 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
3226 pthread_mutex_unlock(&f->fifo_lock);
3232 static int get_input_packet(InputFile *f, AVPacket *pkt)
3236 for (i = 0; i < f->nb_streams; i++) {
3237 InputStream *ist = input_streams[f->ist_index + i];
3238 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3239 int64_t now = av_gettime_relative() - ist->start;
3241 return AVERROR(EAGAIN);
3246 if (nb_input_files > 1)
3247 return get_input_packet_mt(f, pkt);
3249 return av_read_frame(f->ctx, pkt);
3252 static int got_eagain(void)
3255 for (i = 0; i < nb_output_streams; i++)
3256 if (output_streams[i]->unavailable)
3261 static void reset_eagain(void)
3264 for (i = 0; i < nb_input_files; i++)
3265 input_files[i]->eagain = 0;
3266 for (i = 0; i < nb_output_streams; i++)
3267 output_streams[i]->unavailable = 0;
3272 * - 0 -- one packet was read and processed
3273 * - AVERROR(EAGAIN) -- no packets were available for selected file,
3274 * this function should be called again
3275 * - AVERROR_EOF -- this function should not be called again
3277 static int process_input(int file_index)
3279 InputFile *ifile = input_files[file_index];
3280 AVFormatContext *is;
3286 ret = get_input_packet(ifile, &pkt);
3288 if (ret == AVERROR(EAGAIN)) {
3293 if (ret != AVERROR_EOF) {
3294 print_error(is->filename, ret);
3298 ifile->eof_reached = 1;
3300 for (i = 0; i < ifile->nb_streams; i++) {
3301 ist = input_streams[ifile->ist_index + i];
3302 if (ist->decoding_needed)
3303 output_packet(ist, NULL);
3305 /* mark all outputs that don't go through lavfi as finished */
3306 for (j = 0; j < nb_output_streams; j++) {
3307 OutputStream *ost = output_streams[j];
3309 if (ost->source_index == ifile->ist_index + i &&
3310 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3311 close_output_stream(ost);
3315 return AVERROR(EAGAIN);
3321 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3322 is->streams[pkt.stream_index]);
3324 /* the following test is needed in case new streams appear
3325 dynamically in stream : we ignore them */
3326 if (pkt.stream_index >= ifile->nb_streams) {
3327 report_new_stream(file_index, &pkt);
3328 goto discard_packet;
3331 ist = input_streams[ifile->ist_index + pkt.stream_index];
3333 ist->data_size += pkt.size;
3337 goto discard_packet;
3340 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3341 "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",
3342 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3343 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
3344 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
3345 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3346 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3347 av_ts2str(input_files[ist->file_index]->ts_offset),
3348 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3351 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3352 int64_t stime, stime2;
3353 // Correcting starttime based on the enabled streams
3354 // 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.
3355 // so we instead do it here as part of discontinuity handling
3356 if ( ist->next_dts == AV_NOPTS_VALUE
3357 && ifile->ts_offset == -is->start_time
3358 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3359 int64_t new_start_time = INT64_MAX;
3360 for (i=0; i<is->nb_streams; i++) {
3361 AVStream *st = is->streams[i];
3362 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3364 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3366 if (new_start_time > is->start_time) {
3367 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3368 ifile->ts_offset = -new_start_time;
3372 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3373 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3374 ist->wrap_correction_done = 1;
3376 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3377 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3378 ist->wrap_correction_done = 0;
3380 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3381 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3382 ist->wrap_correction_done = 0;
3386 /* add the stream-global side data to the first packet */
3387 if (ist->nb_packets == 1)
3388 if (ist->st->nb_side_data)
3389 av_packet_split_side_data(&pkt);
3390 for (i = 0; i < ist->st->nb_side_data; i++) {
3391 AVPacketSideData *src_sd = &ist->st->side_data[i];
3394 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3397 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3401 memcpy(dst_data, src_sd->data, src_sd->size);
3404 if (pkt.dts != AV_NOPTS_VALUE)
3405 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3406 if (pkt.pts != AV_NOPTS_VALUE)
3407 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3409 if (pkt.pts != AV_NOPTS_VALUE)
3410 pkt.pts *= ist->ts_scale;
3411 if (pkt.dts != AV_NOPTS_VALUE)
3412 pkt.dts *= ist->ts_scale;
3414 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3415 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3416 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3417 int64_t delta = pkt_dts - ifile->last_ts;
3418 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3419 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3420 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3421 ifile->ts_offset -= delta;
3422 av_log(NULL, AV_LOG_DEBUG,
3423 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3424 delta, ifile->ts_offset);
3425 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3426 if (pkt.pts != AV_NOPTS_VALUE)
3427 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3431 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3433 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3434 int64_t delta = pkt_dts - ist->next_dts;
3435 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3436 if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3437 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3438 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3439 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3440 ifile->ts_offset -= delta;
3441 av_log(NULL, AV_LOG_DEBUG,
3442 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3443 delta, ifile->ts_offset);
3444 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3445 if (pkt.pts != AV_NOPTS_VALUE)
3446 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3449 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3450 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3451 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3452 pkt.dts = AV_NOPTS_VALUE;
3454 if (pkt.pts != AV_NOPTS_VALUE){
3455 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3456 delta = pkt_pts - ist->next_dts;
3457 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3458 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3459 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3460 pkt.pts = AV_NOPTS_VALUE;
3466 if (pkt.dts != AV_NOPTS_VALUE)
3467 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3470 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",
3471 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3472 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3473 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3474 av_ts2str(input_files[ist->file_index]->ts_offset),
3475 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3478 sub2video_heartbeat(ist, pkt.pts);
3480 ret = output_packet(ist, &pkt);
3482 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3483 ist->file_index, ist->st->index, av_err2str(ret));
3489 av_free_packet(&pkt);
3495 * Perform a step of transcoding for the specified filter graph.
3497 * @param[in] graph filter graph to consider
3498 * @param[out] best_ist input stream where a frame would allow to continue
3499 * @return 0 for success, <0 for error
3501 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3504 int nb_requests, nb_requests_max = 0;
3505 InputFilter *ifilter;
3509 ret = avfilter_graph_request_oldest(graph->graph);
3511 return reap_filters();
3513 if (ret == AVERROR_EOF) {
3514 ret = reap_filters();
3515 for (i = 0; i < graph->nb_outputs; i++)
3516 close_output_stream(graph->outputs[i]->ost);
3519 if (ret != AVERROR(EAGAIN))
3522 for (i = 0; i < graph->nb_inputs; i++) {
3523 ifilter = graph->inputs[i];
3525 if (input_files[ist->file_index]->eagain ||
3526 input_files[ist->file_index]->eof_reached)
3528 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3529 if (nb_requests > nb_requests_max) {
3530 nb_requests_max = nb_requests;
3536 for (i = 0; i < graph->nb_outputs; i++)
3537 graph->outputs[i]->ost->unavailable = 1;
3543 * Run a single step of transcoding.
3545 * @return 0 for success, <0 for error
3547 static int transcode_step(void)
3553 ost = choose_output();
3560 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3565 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3570 av_assert0(ost->source_index >= 0);
3571 ist = input_streams[ost->source_index];
3574 ret = process_input(ist->file_index);
3575 if (ret == AVERROR(EAGAIN)) {
3576 if (input_files[ist->file_index]->eagain)
3577 ost->unavailable = 1;
3581 return ret == AVERROR_EOF ? 0 : ret;
3583 return reap_filters();
3587 * The following code is the main loop of the file converter
3589 static int transcode(void)
3592 AVFormatContext *os;
3595 int64_t timer_start;
3597 ret = transcode_init();
3601 if (stdin_interaction) {
3602 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3605 timer_start = av_gettime_relative();
3608 if ((ret = init_input_threads()) < 0)
3612 while (!received_sigterm) {
3613 int64_t cur_time= av_gettime_relative();
3615 /* if 'q' pressed, exits */
3616 if (stdin_interaction)
3617 if (check_keyboard_interaction(cur_time) < 0)
3620 /* check if there's any stream where output is still needed */
3621 if (!need_output()) {
3622 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3626 ret = transcode_step();
3628 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3631 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3635 /* dump report by using the output first video and audio streams */
3636 print_report(0, timer_start, cur_time);
3639 free_input_threads();
3642 /* at the end of stream, we must flush the decoder buffers */
3643 for (i = 0; i < nb_input_streams; i++) {
3644 ist = input_streams[i];
3645 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3646 output_packet(ist, NULL);
3653 /* write the trailer if needed and close file */
3654 for (i = 0; i < nb_output_files; i++) {
3655 os = output_files[i]->ctx;
3656 av_write_trailer(os);
3659 /* dump report by using the first video and audio streams */
3660 print_report(1, timer_start, av_gettime_relative());
3662 /* close each encoder */
3663 for (i = 0; i < nb_output_streams; i++) {
3664 ost = output_streams[i];
3665 if (ost->encoding_needed) {
3666 av_freep(&ost->st->codec->stats_in);
3667 avcodec_close(ost->st->codec);
3671 /* close each decoder */
3672 for (i = 0; i < nb_input_streams; i++) {
3673 ist = input_streams[i];
3674 if (ist->decoding_needed) {
3675 avcodec_close(ist->st->codec);
3676 if (ist->hwaccel_uninit)
3677 ist->hwaccel_uninit(ist->st->codec);
3686 free_input_threads();
3689 if (output_streams) {
3690 for (i = 0; i < nb_output_streams; i++) {
3691 ost = output_streams[i];
3693 if (ost->stream_copy)
3694 av_freep(&ost->st->codec->extradata);
3696 fclose(ost->logfile);
3697 ost->logfile = NULL;
3699 av_freep(&ost->st->codec->subtitle_header);
3700 av_freep(&ost->forced_kf_pts);
3701 av_freep(&ost->apad);
3702 av_dict_free(&ost->encoder_opts);
3703 av_dict_free(&ost->swr_opts);
3704 av_dict_free(&ost->resample_opts);
3712 static int64_t getutime(void)
3715 struct rusage rusage;
3717 getrusage(RUSAGE_SELF, &rusage);
3718 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3719 #elif HAVE_GETPROCESSTIMES
3721 FILETIME c, e, k, u;
3722 proc = GetCurrentProcess();
3723 GetProcessTimes(proc, &c, &e, &k, &u);
3724 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3726 return av_gettime();
3730 static int64_t getmaxrss(void)
3732 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3733 struct rusage rusage;
3734 getrusage(RUSAGE_SELF, &rusage);
3735 return (int64_t)rusage.ru_maxrss * 1024;
3736 #elif HAVE_GETPROCESSMEMORYINFO
3738 PROCESS_MEMORY_COUNTERS memcounters;
3739 proc = GetCurrentProcess();
3740 memcounters.cb = sizeof(memcounters);
3741 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3742 return memcounters.PeakPagefileUsage;
3748 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3752 int main(int argc, char **argv)
3757 register_exit(ffmpeg_cleanup);
3759 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3761 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3762 parse_loglevel(argc, argv, options);
3764 if(argc>1 && !strcmp(argv[1], "-d")){
3766 av_log_set_callback(log_callback_null);
3771 avcodec_register_all();
3773 avdevice_register_all();
3775 avfilter_register_all();
3777 avformat_network_init();
3779 show_banner(argc, argv, options);
3783 /* parse options and open all input/output files */
3784 ret = ffmpeg_parse_options(argc, argv);
3788 if (nb_output_files <= 0 && nb_input_files == 0) {
3790 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3794 /* file converter / grab */
3795 if (nb_output_files <= 0) {
3796 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3800 // if (nb_input_files == 0) {
3801 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3805 current_time = ti = getutime();
3806 if (transcode() < 0)
3808 ti = getutime() - ti;
3810 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3812 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3813 decode_error_stat[0], decode_error_stat[1]);
3814 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3817 exit_program(received_nb_signals ? 255 : main_return_code);
3818 return main_return_code;