2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswresample/swresample.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/channel_layout.h"
46 #include "libavutil/parseutils.h"
47 #include "libavutil/samplefmt.h"
48 #include "libavutil/fifo.h"
49 #include "libavutil/intreadwrite.h"
50 #include "libavutil/dict.h"
51 #include "libavutil/mathematics.h"
52 #include "libavutil/pixdesc.h"
53 #include "libavutil/avstring.h"
54 #include "libavutil/libm.h"
55 #include "libavutil/imgutils.h"
56 #include "libavutil/timestamp.h"
57 #include "libavutil/bprint.h"
58 #include "libavutil/time.h"
59 #include "libavformat/os_support.h"
61 #include "libavformat/ffm.h" // not public API
63 # include "libavfilter/avcodec.h"
64 # include "libavfilter/avfilter.h"
65 # include "libavfilter/buffersrc.h"
66 # include "libavfilter/buffersink.h"
68 #if HAVE_SYS_RESOURCE_H
70 #include <sys/types.h>
71 #include <sys/resource.h>
72 #elif HAVE_GETPROCESSTIMES
75 #if HAVE_GETPROCESSMEMORYINFO
81 #include <sys/select.h>
86 #include <sys/ioctl.h>
100 #include "cmdutils.h"
102 #include "libavutil/avassert.h"
104 const char program_name[] = "ffmpeg";
105 const int program_birth_year = 2000;
107 static FILE *vstats_file;
109 const char *const forced_keyframes_const_names[] = {
118 static void do_video_stats(OutputStream *ost, int frame_size);
119 static int64_t getutime(void);
120 static int64_t getmaxrss(void);
122 static int run_as_daemon = 0;
123 static int64_t video_size = 0;
124 static int64_t audio_size = 0;
125 static int64_t subtitle_size = 0;
126 static int64_t extra_size = 0;
127 static int nb_frames_dup = 0;
128 static int nb_frames_drop = 0;
129 static int64_t decode_error_stat[2];
131 static int current_time;
132 AVIOContext *progress_avio = NULL;
134 static uint8_t *subtitle_out;
137 /* signal to input threads that they should exit; set by the main thread */
138 static int transcoding_finished;
141 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
143 InputStream **input_streams = NULL;
144 int nb_input_streams = 0;
145 InputFile **input_files = NULL;
146 int nb_input_files = 0;
148 OutputStream **output_streams = NULL;
149 int nb_output_streams = 0;
150 OutputFile **output_files = NULL;
151 int nb_output_files = 0;
153 FilterGraph **filtergraphs;
158 /* init terminal so that we can grab keys */
159 static struct termios oldtty;
160 static int restore_tty;
163 static void free_input_threads(void);
167 Convert subtitles to video with alpha to insert them in filter graphs.
168 This is a temporary solution until libavfilter gets real subtitles support.
171 static int sub2video_get_blank_frame(InputStream *ist)
174 AVFrame *frame = ist->sub2video.frame;
176 av_frame_unref(frame);
177 ist->sub2video.frame->width = ist->sub2video.w;
178 ist->sub2video.frame->height = ist->sub2video.h;
179 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
180 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
182 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
186 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
189 uint32_t *pal, *dst2;
193 if (r->type != SUBTITLE_BITMAP) {
194 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
197 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
198 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
202 dst += r->y * dst_linesize + r->x * 4;
203 src = r->pict.data[0];
204 pal = (uint32_t *)r->pict.data[1];
205 for (y = 0; y < r->h; y++) {
206 dst2 = (uint32_t *)dst;
208 for (x = 0; x < r->w; x++)
209 *(dst2++) = pal[*(src2++)];
211 src += r->pict.linesize[0];
215 static void sub2video_push_ref(InputStream *ist, int64_t pts)
217 AVFrame *frame = ist->sub2video.frame;
220 av_assert1(frame->data[0]);
221 ist->sub2video.last_pts = frame->pts = pts;
222 for (i = 0; i < ist->nb_filters; i++)
223 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
224 AV_BUFFERSRC_FLAG_KEEP_REF |
225 AV_BUFFERSRC_FLAG_PUSH);
228 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
230 int w = ist->sub2video.w, h = ist->sub2video.h;
231 AVFrame *frame = ist->sub2video.frame;
235 int64_t pts, end_pts;
240 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
241 AV_TIME_BASE_Q, ist->st->time_base);
242 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
243 AV_TIME_BASE_Q, ist->st->time_base);
244 num_rects = sub->num_rects;
246 pts = ist->sub2video.end_pts;
250 if (sub2video_get_blank_frame(ist) < 0) {
251 av_log(ist->st->codec, AV_LOG_ERROR,
252 "Impossible to get a blank canvas.\n");
255 dst = frame->data [0];
256 dst_linesize = frame->linesize[0];
257 for (i = 0; i < num_rects; i++)
258 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
259 sub2video_push_ref(ist, pts);
260 ist->sub2video.end_pts = end_pts;
263 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
265 InputFile *infile = input_files[ist->file_index];
269 /* When a frame is read from a file, examine all sub2video streams in
270 the same file and send the sub2video frame again. Otherwise, decoded
271 video frames could be accumulating in the filter graph while a filter
272 (possibly overlay) is desperately waiting for a subtitle frame. */
273 for (i = 0; i < infile->nb_streams; i++) {
274 InputStream *ist2 = input_streams[infile->ist_index + i];
275 if (!ist2->sub2video.frame)
277 /* subtitles seem to be usually muxed ahead of other streams;
278 if not, substracting a larger time here is necessary */
279 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
280 /* do not send the heartbeat frame if the subtitle is already ahead */
281 if (pts2 <= ist2->sub2video.last_pts)
283 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
284 sub2video_update(ist2, NULL);
285 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
286 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
288 sub2video_push_ref(ist2, pts2);
292 static void sub2video_flush(InputStream *ist)
296 for (i = 0; i < ist->nb_filters; i++)
297 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
300 /* end of sub2video hack */
304 av_log(NULL, AV_LOG_QUIET, "%s", "");
307 tcsetattr (0, TCSANOW, &oldtty);
311 static volatile int received_sigterm = 0;
312 static volatile int received_nb_signals = 0;
315 sigterm_handler(int sig)
317 received_sigterm = sig;
318 received_nb_signals++;
320 if(received_nb_signals > 3)
331 istty = isatty(0) && isatty(2);
333 if (istty && tcgetattr (0, &tty) == 0) {
337 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
338 |INLCR|IGNCR|ICRNL|IXON);
339 tty.c_oflag |= OPOST;
340 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
341 tty.c_cflag &= ~(CSIZE|PARENB);
346 tcsetattr (0, TCSANOW, &tty);
348 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
351 avformat_network_deinit();
353 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
354 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
356 signal(SIGXCPU, sigterm_handler);
360 /* read a key without blocking */
361 static int read_key(void)
373 n = select(1, &rfds, NULL, NULL, &tv);
382 # if HAVE_PEEKNAMEDPIPE
384 static HANDLE input_handle;
387 input_handle = GetStdHandle(STD_INPUT_HANDLE);
388 is_pipe = !GetConsoleMode(input_handle, &dw);
391 if (stdin->_cnt > 0) {
396 /* When running under a GUI, you will end here. */
397 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
398 // input pipe may have been closed by the program that ran ffmpeg
416 static int decode_interrupt_cb(void *ctx)
418 return received_nb_signals > 1;
421 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
423 static void ffmpeg_cleanup(int ret)
428 int maxrss = getmaxrss() / 1024;
429 printf("bench: maxrss=%ikB\n", maxrss);
432 for (i = 0; i < nb_filtergraphs; i++) {
433 avfilter_graph_free(&filtergraphs[i]->graph);
434 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
435 av_freep(&filtergraphs[i]->inputs[j]->name);
436 av_freep(&filtergraphs[i]->inputs[j]);
438 av_freep(&filtergraphs[i]->inputs);
439 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
440 av_freep(&filtergraphs[i]->outputs[j]->name);
441 av_freep(&filtergraphs[i]->outputs[j]);
443 av_freep(&filtergraphs[i]->outputs);
444 av_freep(&filtergraphs[i]->graph_desc);
445 av_freep(&filtergraphs[i]);
447 av_freep(&filtergraphs);
449 av_freep(&subtitle_out);
452 for (i = 0; i < nb_output_files; i++) {
453 AVFormatContext *s = output_files[i]->ctx;
454 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456 avformat_free_context(s);
457 av_dict_free(&output_files[i]->opts);
458 av_freep(&output_files[i]);
460 for (i = 0; i < nb_output_streams; i++) {
461 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
463 AVBitStreamFilterContext *next = bsfc->next;
464 av_bitstream_filter_close(bsfc);
467 output_streams[i]->bitstream_filters = NULL;
468 avcodec_free_frame(&output_streams[i]->filtered_frame);
470 av_parser_close(output_streams[i]->parser);
472 av_freep(&output_streams[i]->forced_keyframes);
473 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
474 av_freep(&output_streams[i]->avfilter);
475 av_freep(&output_streams[i]->logfile_prefix);
476 av_freep(&output_streams[i]);
479 free_input_threads();
481 for (i = 0; i < nb_input_files; i++) {
482 avformat_close_input(&input_files[i]->ctx);
483 av_freep(&input_files[i]);
485 for (i = 0; i < nb_input_streams; i++) {
486 av_frame_free(&input_streams[i]->decoded_frame);
487 av_frame_free(&input_streams[i]->filter_frame);
488 av_dict_free(&input_streams[i]->opts);
489 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
490 av_frame_free(&input_streams[i]->sub2video.frame);
491 av_freep(&input_streams[i]->filters);
492 av_freep(&input_streams[i]);
497 av_free(vstats_filename);
499 av_freep(&input_streams);
500 av_freep(&input_files);
501 av_freep(&output_streams);
502 av_freep(&output_files);
506 avformat_network_deinit();
508 if (received_sigterm) {
509 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
510 (int) received_sigterm);
515 void assert_avoptions(AVDictionary *m)
517 AVDictionaryEntry *t;
518 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
519 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
524 static void abort_codec_experimental(AVCodec *c, int encoder)
529 static void update_benchmark(const char *fmt, ...)
531 if (do_benchmark_all) {
532 int64_t t = getutime();
538 vsnprintf(buf, sizeof(buf), fmt, va);
540 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
546 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
548 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
549 AVCodecContext *avctx = ost->st->codec;
552 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
553 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
554 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
557 * Audio encoders may split the packets -- #frames in != #packets out.
558 * But there is no reordering, so we can limit the number of output packets
559 * by simply dropping them here.
560 * Counting encoded video frames needs to be done separately because of
561 * reordering, see do_video_out()
563 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
564 if (ost->frame_number >= ost->max_frames) {
572 AVPacket new_pkt = *pkt;
573 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
574 &new_pkt.data, &new_pkt.size,
575 pkt->data, pkt->size,
576 pkt->flags & AV_PKT_FLAG_KEY);
577 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
578 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
580 memcpy(t, new_pkt.data, new_pkt.size);
581 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
590 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
591 av_buffer_default_free, NULL, 0);
595 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
596 bsfc->filter->name, pkt->stream_index,
597 avctx->codec ? avctx->codec->name : "copy");
607 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
608 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
609 pkt->dts != AV_NOPTS_VALUE &&
610 ost->last_mux_dts != AV_NOPTS_VALUE) {
611 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
612 if (pkt->dts < max) {
613 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
614 av_log(s, loglevel, "Non-monotonous DTS in output stream "
615 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
616 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
618 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
621 av_log(s, loglevel, "changing to %"PRId64". This may result "
622 "in incorrect timestamps in the output file.\n",
624 if(pkt->pts >= pkt->dts)
625 pkt->pts = FFMAX(pkt->pts, max);
629 ost->last_mux_dts = pkt->dts;
631 pkt->stream_index = ost->index;
634 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
635 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
636 av_get_media_type_string(ost->st->codec->codec_type),
637 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
638 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
643 ret = av_interleaved_write_frame(s, pkt);
645 print_error("av_interleaved_write_frame()", ret);
650 static void close_output_stream(OutputStream *ost)
652 OutputFile *of = output_files[ost->file_index];
656 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
657 of->recording_time = FFMIN(of->recording_time, end);
661 static int check_recording_time(OutputStream *ost)
663 OutputFile *of = output_files[ost->file_index];
665 if (of->recording_time != INT64_MAX &&
666 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
667 AV_TIME_BASE_Q) >= 0) {
668 close_output_stream(ost);
674 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
677 AVCodecContext *enc = ost->st->codec;
681 av_init_packet(&pkt);
685 if (!check_recording_time(ost))
688 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
689 frame->pts = ost->sync_opts;
690 ost->sync_opts = frame->pts + frame->nb_samples;
692 av_assert0(pkt.size || !pkt.data);
693 update_benchmark(NULL);
694 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
695 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
698 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
701 if (pkt.pts != AV_NOPTS_VALUE)
702 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
703 if (pkt.dts != AV_NOPTS_VALUE)
704 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
705 if (pkt.duration > 0)
706 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
709 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
710 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
711 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
712 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
715 audio_size += pkt.size;
716 write_frame(s, &pkt, ost);
718 av_free_packet(&pkt);
722 static void do_subtitle_out(AVFormatContext *s,
727 int subtitle_out_max_size = 1024 * 1024;
728 int subtitle_out_size, nb, i;
733 if (sub->pts == AV_NOPTS_VALUE) {
734 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
740 enc = ost->st->codec;
743 subtitle_out = av_malloc(subtitle_out_max_size);
746 /* Note: DVB subtitle need one packet to draw them and one other
747 packet to clear them */
748 /* XXX: signal it in the codec context ? */
749 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
754 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
756 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
757 pts -= output_files[ost->file_index]->start_time;
758 for (i = 0; i < nb; i++) {
759 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
760 if (!check_recording_time(ost))
764 // start_display_time is required to be 0
765 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
766 sub->end_display_time -= sub->start_display_time;
767 sub->start_display_time = 0;
770 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
771 subtitle_out_max_size, sub);
772 if (subtitle_out_size < 0) {
773 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
777 av_init_packet(&pkt);
778 pkt.data = subtitle_out;
779 pkt.size = subtitle_out_size;
780 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
781 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
782 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
783 /* XXX: the pts correction is handled here. Maybe handling
784 it in the codec would be better */
786 pkt.pts += 90 * sub->start_display_time;
788 pkt.pts += 90 * sub->end_display_time;
790 subtitle_size += pkt.size;
791 write_frame(s, &pkt, ost);
795 static void do_video_out(AVFormatContext *s,
799 int ret, format_video_sync;
801 AVCodecContext *enc = ost->st->codec;
803 double sync_ipts, delta;
806 InputStream *ist = NULL;
808 if (ost->source_index >= 0)
809 ist = input_streams[ost->source_index];
811 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
812 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
814 sync_ipts = in_picture->pts;
815 delta = sync_ipts - ost->sync_opts + duration;
817 /* by default, we output a single frame */
820 format_video_sync = video_sync_method;
821 if (format_video_sync == VSYNC_AUTO) {
822 if(!strcmp(s->oformat->name, "avi")) {
823 format_video_sync = VSYNC_VFR;
825 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
827 && format_video_sync == VSYNC_CFR
828 && input_files[ist->file_index]->ctx->nb_streams == 1
829 && input_files[ist->file_index]->input_ts_offset == 0) {
830 format_video_sync = VSYNC_VSCFR;
834 switch (format_video_sync) {
836 if (ost->frame_number == 0 && delta - duration >= 0.5) {
837 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
839 ost->sync_opts = lrint(sync_ipts);
842 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
845 else if (delta > 1.1)
846 nb_frames = lrintf(delta);
851 else if (delta > 0.6)
852 ost->sync_opts = lrint(sync_ipts);
855 case VSYNC_PASSTHROUGH:
856 ost->sync_opts = lrint(sync_ipts);
862 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
863 if (nb_frames == 0) {
865 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
867 } else if (nb_frames > 1) {
868 if (nb_frames > dts_error_threshold * 30) {
869 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
873 nb_frames_dup += nb_frames - 1;
874 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
877 /* duplicates frame if needed */
878 for (i = 0; i < nb_frames; i++) {
879 av_init_packet(&pkt);
883 in_picture->pts = ost->sync_opts;
886 if (!check_recording_time(ost))
888 if (ost->frame_number >= ost->max_frames)
892 if (s->oformat->flags & AVFMT_RAWPICTURE &&
893 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
894 /* raw pictures are written as AVPicture structure to
895 avoid any copies. We support temporarily the older
897 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
898 enc->coded_frame->top_field_first = in_picture->top_field_first;
899 if (enc->coded_frame->interlaced_frame)
900 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
902 enc->field_order = AV_FIELD_PROGRESSIVE;
903 pkt.data = (uint8_t *)in_picture;
904 pkt.size = sizeof(AVPicture);
905 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
906 pkt.flags |= AV_PKT_FLAG_KEY;
908 video_size += pkt.size;
909 write_frame(s, &pkt, ost);
911 int got_packet, forced_keyframe = 0;
914 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
915 ost->top_field_first >= 0)
916 in_picture->top_field_first = !!ost->top_field_first;
918 if (in_picture->interlaced_frame) {
919 if (enc->codec->id == AV_CODEC_ID_MJPEG)
920 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
922 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
924 enc->field_order = AV_FIELD_PROGRESSIVE;
926 in_picture->quality = ost->st->codec->global_quality;
927 if (!enc->me_threshold)
928 in_picture->pict_type = 0;
930 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
931 in_picture->pts * av_q2d(enc->time_base) : NAN;
932 if (ost->forced_kf_index < ost->forced_kf_count &&
933 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
934 ost->forced_kf_index++;
936 } else if (ost->forced_keyframes_pexpr) {
938 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
939 res = av_expr_eval(ost->forced_keyframes_pexpr,
940 ost->forced_keyframes_expr_const_values, NULL);
941 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
942 ost->forced_keyframes_expr_const_values[FKF_N],
943 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
944 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
945 ost->forced_keyframes_expr_const_values[FKF_T],
946 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
950 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
951 ost->forced_keyframes_expr_const_values[FKF_N];
952 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
953 ost->forced_keyframes_expr_const_values[FKF_T];
954 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
957 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
959 if (forced_keyframe) {
960 in_picture->pict_type = AV_PICTURE_TYPE_I;
961 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
964 update_benchmark(NULL);
965 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
966 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
968 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
973 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
974 pkt.pts = ost->sync_opts;
976 if (pkt.pts != AV_NOPTS_VALUE)
977 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
978 if (pkt.dts != AV_NOPTS_VALUE)
979 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
982 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
983 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
984 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
985 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
988 frame_size = pkt.size;
989 video_size += pkt.size;
990 write_frame(s, &pkt, ost);
991 av_free_packet(&pkt);
993 /* if two pass, output log */
994 if (ost->logfile && enc->stats_out) {
995 fprintf(ost->logfile, "%s", enc->stats_out);
1001 * For video, number of frames in == number of packets out.
1002 * But there may be reordering, so we can't throw away frames on encoder
1003 * flush, we need to limit them here, before they go into encoder.
1005 ost->frame_number++;
1007 if (vstats_filename && frame_size)
1008 do_video_stats(ost, frame_size);
1012 static double psnr(double d)
1014 return -10.0 * log(d) / log(10.0);
1017 static void do_video_stats(OutputStream *ost, int frame_size)
1019 AVCodecContext *enc;
1021 double ti1, bitrate, avg_bitrate;
1023 /* this is executed just the first time do_video_stats is called */
1025 vstats_file = fopen(vstats_filename, "w");
1032 enc = ost->st->codec;
1033 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1034 frame_number = ost->st->nb_frames;
1035 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1036 if (enc->flags&CODEC_FLAG_PSNR)
1037 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1039 fprintf(vstats_file,"f_size= %6d ", frame_size);
1040 /* compute pts value */
1041 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1045 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1046 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1047 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1048 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1049 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1054 * Get and encode new output from any of the filtergraphs, without causing
1057 * @return 0 for success, <0 for severe errors
1059 static int reap_filters(void)
1061 AVFrame *filtered_frame = NULL;
1065 /* Reap all buffers present in the buffer sinks */
1066 for (i = 0; i < nb_output_streams; i++) {
1067 OutputStream *ost = output_streams[i];
1068 OutputFile *of = output_files[ost->file_index];
1074 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1075 return AVERROR(ENOMEM);
1077 avcodec_get_frame_defaults(ost->filtered_frame);
1078 filtered_frame = ost->filtered_frame;
1081 ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame,
1082 AV_BUFFERSINK_FLAG_NO_REQUEST);
1084 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1085 av_log(NULL, AV_LOG_WARNING,
1086 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1090 frame_pts = AV_NOPTS_VALUE;
1091 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1092 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1093 filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts,
1094 ost->filter->filter->inputs[0]->time_base,
1095 ost->st->codec->time_base) -
1096 av_rescale_q(start_time,
1098 ost->st->codec->time_base);
1100 //if (ost->source_index >= 0)
1101 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1104 switch (ost->filter->filter->inputs[0]->type) {
1105 case AVMEDIA_TYPE_VIDEO:
1106 filtered_frame->pts = frame_pts;
1107 if (!ost->frame_aspect_ratio.num)
1108 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1110 do_video_out(of->ctx, ost, filtered_frame);
1112 case AVMEDIA_TYPE_AUDIO:
1113 filtered_frame->pts = frame_pts;
1114 if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1115 ost->st->codec->channels != av_frame_get_channels(filtered_frame)) {
1116 av_log(NULL, AV_LOG_ERROR,
1117 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1120 do_audio_out(of->ctx, ost, filtered_frame);
1123 // TODO support subtitle filters
1127 av_frame_unref(filtered_frame);
1134 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1137 AVBPrint buf_script;
1139 AVFormatContext *oc;
1141 AVCodecContext *enc;
1142 int frame_number, vid, i;
1144 int64_t pts = INT64_MIN;
1145 static int64_t last_time = -1;
1146 static int qp_histogram[52];
1147 int hours, mins, secs, us;
1149 if (!print_stats && !is_last_report && !progress_avio)
1152 if (!is_last_report) {
1153 if (last_time == -1) {
1154 last_time = cur_time;
1157 if ((cur_time - last_time) < 500000)
1159 last_time = cur_time;
1163 oc = output_files[0]->ctx;
1165 total_size = avio_size(oc->pb);
1166 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1167 total_size = avio_tell(oc->pb);
1171 av_bprint_init(&buf_script, 0, 1);
1172 for (i = 0; i < nb_output_streams; i++) {
1174 ost = output_streams[i];
1175 enc = ost->st->codec;
1176 if (!ost->stream_copy && enc->coded_frame)
1177 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1178 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1179 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1180 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1181 ost->file_index, ost->index, q);
1183 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1184 float fps, t = (cur_time-timer_start) / 1000000.0;
1186 frame_number = ost->frame_number;
1187 fps = t > 1 ? frame_number / t : 0;
1188 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1189 frame_number, fps < 9.95, fps, q);
1190 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1191 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1192 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1193 ost->file_index, ost->index, q);
1195 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1199 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1201 for (j = 0; j < 32; j++)
1202 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1204 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1206 double error, error_sum = 0;
1207 double scale, scale_sum = 0;
1209 char type[3] = { 'Y','U','V' };
1210 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1211 for (j = 0; j < 3; j++) {
1212 if (is_last_report) {
1213 error = enc->error[j];
1214 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1216 error = enc->coded_frame->error[j];
1217 scale = enc->width * enc->height * 255.0 * 255.0;
1223 p = psnr(error / scale);
1224 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1225 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1226 ost->file_index, ost->index, type[j] | 32, p);
1228 p = psnr(error_sum / scale_sum);
1229 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1230 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1231 ost->file_index, ost->index, p);
1235 /* compute min output value */
1236 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1237 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1238 ost->st->time_base, AV_TIME_BASE_Q));
1241 secs = pts / AV_TIME_BASE;
1242 us = pts % AV_TIME_BASE;
1248 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1250 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1252 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1253 "size=%8.0fkB time=", total_size / 1024.0);
1254 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1255 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1256 (100 * us) / AV_TIME_BASE);
1257 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1259 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1260 "bitrate=%6.1fkbits/s", bitrate);
1261 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1262 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1263 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1264 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1265 hours, mins, secs, us);
1267 if (nb_frames_dup || nb_frames_drop)
1268 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1269 nb_frames_dup, nb_frames_drop);
1270 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1271 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1273 if (print_stats || is_last_report) {
1274 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1275 fprintf(stderr, "%s \r", buf);
1277 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1282 if (progress_avio) {
1283 av_bprintf(&buf_script, "progress=%s\n",
1284 is_last_report ? "end" : "continue");
1285 avio_write(progress_avio, buf_script.str,
1286 FFMIN(buf_script.len, buf_script.size - 1));
1287 avio_flush(progress_avio);
1288 av_bprint_finalize(&buf_script, NULL);
1289 if (is_last_report) {
1290 avio_close(progress_avio);
1291 progress_avio = NULL;
1295 if (is_last_report) {
1296 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1297 av_log(NULL, AV_LOG_INFO, "\n");
1298 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1299 video_size / 1024.0,
1300 audio_size / 1024.0,
1301 subtitle_size / 1024.0,
1302 extra_size / 1024.0,
1303 100.0 * (total_size - raw) / raw
1305 if(video_size + audio_size + subtitle_size + extra_size == 0){
1306 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1311 static void flush_encoders(void)
1315 for (i = 0; i < nb_output_streams; i++) {
1316 OutputStream *ost = output_streams[i];
1317 AVCodecContext *enc = ost->st->codec;
1318 AVFormatContext *os = output_files[ost->file_index]->ctx;
1319 int stop_encoding = 0;
1321 if (!ost->encoding_needed)
1324 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1326 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1330 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1334 switch (ost->st->codec->codec_type) {
1335 case AVMEDIA_TYPE_AUDIO:
1336 encode = avcodec_encode_audio2;
1340 case AVMEDIA_TYPE_VIDEO:
1341 encode = avcodec_encode_video2;
1352 av_init_packet(&pkt);
1356 update_benchmark(NULL);
1357 ret = encode(enc, &pkt, NULL, &got_packet);
1358 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1360 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1364 if (ost->logfile && enc->stats_out) {
1365 fprintf(ost->logfile, "%s", enc->stats_out);
1371 if (pkt.pts != AV_NOPTS_VALUE)
1372 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1373 if (pkt.dts != AV_NOPTS_VALUE)
1374 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1375 if (pkt.duration > 0)
1376 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1377 write_frame(os, &pkt, ost);
1378 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1379 do_video_stats(ost, pkt.size);
1390 * Check whether a packet from ist should be written into ost at this time
1392 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1394 OutputFile *of = output_files[ost->file_index];
1395 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1397 if (ost->source_index != ist_index)
1400 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1406 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1408 OutputFile *of = output_files[ost->file_index];
1409 InputFile *f = input_files [ist->file_index];
1410 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1411 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1412 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1416 av_init_packet(&opkt);
1418 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1419 !ost->copy_initial_nonkeyframes)
1422 if (pkt->pts == AV_NOPTS_VALUE) {
1423 if (!ost->frame_number && ist->pts < start_time &&
1424 !ost->copy_prior_start)
1427 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1428 !ost->copy_prior_start)
1432 if (of->recording_time != INT64_MAX &&
1433 ist->pts >= of->recording_time + start_time) {
1434 close_output_stream(ost);
1438 if (f->recording_time != INT64_MAX) {
1439 start_time = f->ctx->start_time;
1440 if (f->start_time != AV_NOPTS_VALUE)
1441 start_time += f->start_time;
1442 if (ist->pts >= f->recording_time + start_time) {
1443 close_output_stream(ost);
1448 /* force the input stream PTS */
1449 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1450 audio_size += pkt->size;
1451 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1452 video_size += pkt->size;
1454 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1455 subtitle_size += pkt->size;
1458 if (pkt->pts != AV_NOPTS_VALUE)
1459 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1461 opkt.pts = AV_NOPTS_VALUE;
1463 if (pkt->dts == AV_NOPTS_VALUE)
1464 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1466 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1467 opkt.dts -= ost_tb_start_time;
1469 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1470 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1472 duration = ist->st->codec->frame_size;
1473 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1474 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1475 ost->st->time_base) - ost_tb_start_time;
1478 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1479 opkt.flags = pkt->flags;
1481 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1482 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1483 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1484 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1485 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1487 if (av_parser_change(ost->parser, ost->st->codec,
1488 &opkt.data, &opkt.size,
1489 pkt->data, pkt->size,
1490 pkt->flags & AV_PKT_FLAG_KEY)) {
1491 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1496 opkt.data = pkt->data;
1497 opkt.size = pkt->size;
1500 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1501 /* store AVPicture in AVPacket, as expected by the output format */
1502 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1503 opkt.data = (uint8_t *)&pict;
1504 opkt.size = sizeof(AVPicture);
1505 opkt.flags |= AV_PKT_FLAG_KEY;
1508 write_frame(of->ctx, &opkt, ost);
1509 ost->st->codec->frame_number++;
1512 int guess_input_channel_layout(InputStream *ist)
1514 AVCodecContext *dec = ist->st->codec;
1516 if (!dec->channel_layout) {
1517 char layout_name[256];
1519 if (dec->channels > ist->guess_layout_max)
1521 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1522 if (!dec->channel_layout)
1524 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1525 dec->channels, dec->channel_layout);
1526 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1527 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1532 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1534 AVFrame *decoded_frame, *f;
1535 AVCodecContext *avctx = ist->st->codec;
1536 int i, ret, err = 0, resample_changed;
1537 AVRational decoded_frame_tb;
1539 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1540 return AVERROR(ENOMEM);
1541 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1542 return AVERROR(ENOMEM);
1543 decoded_frame = ist->decoded_frame;
1545 update_benchmark(NULL);
1546 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1547 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1549 if (ret >= 0 && avctx->sample_rate <= 0) {
1550 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1551 ret = AVERROR_INVALIDDATA;
1554 if (*got_output || ret<0 || pkt->size)
1555 decode_error_stat[ret<0] ++;
1557 if (!*got_output || ret < 0) {
1559 for (i = 0; i < ist->nb_filters; i++)
1561 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1563 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1570 /* increment next_dts to use for the case where the input stream does not
1571 have timestamps or there are multiple frames in the packet */
1572 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1574 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1578 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1579 ist->resample_channels != avctx->channels ||
1580 ist->resample_channel_layout != decoded_frame->channel_layout ||
1581 ist->resample_sample_rate != decoded_frame->sample_rate;
1582 if (resample_changed) {
1583 char layout1[64], layout2[64];
1585 if (!guess_input_channel_layout(ist)) {
1586 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1587 "layout for Input Stream #%d.%d\n", ist->file_index,
1591 decoded_frame->channel_layout = avctx->channel_layout;
1593 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1594 ist->resample_channel_layout);
1595 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1596 decoded_frame->channel_layout);
1598 av_log(NULL, AV_LOG_INFO,
1599 "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",
1600 ist->file_index, ist->st->index,
1601 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1602 ist->resample_channels, layout1,
1603 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1604 avctx->channels, layout2);
1606 ist->resample_sample_fmt = decoded_frame->format;
1607 ist->resample_sample_rate = decoded_frame->sample_rate;
1608 ist->resample_channel_layout = decoded_frame->channel_layout;
1609 ist->resample_channels = avctx->channels;
1611 for (i = 0; i < nb_filtergraphs; i++)
1612 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1613 FilterGraph *fg = filtergraphs[i];
1615 if (configure_filtergraph(fg) < 0) {
1616 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1619 for (j = 0; j < fg->nb_outputs; j++) {
1620 OutputStream *ost = fg->outputs[j]->ost;
1621 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1622 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1623 av_buffersink_set_frame_size(ost->filter->filter,
1624 ost->st->codec->frame_size);
1629 /* if the decoder provides a pts, use it instead of the last packet pts.
1630 the decoder could be delaying output by a packet or more. */
1631 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1632 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1633 decoded_frame_tb = avctx->time_base;
1634 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1635 decoded_frame->pts = decoded_frame->pkt_pts;
1636 pkt->pts = AV_NOPTS_VALUE;
1637 decoded_frame_tb = ist->st->time_base;
1638 } else if (pkt->pts != AV_NOPTS_VALUE) {
1639 decoded_frame->pts = pkt->pts;
1640 pkt->pts = AV_NOPTS_VALUE;
1641 decoded_frame_tb = ist->st->time_base;
1643 decoded_frame->pts = ist->dts;
1644 decoded_frame_tb = AV_TIME_BASE_Q;
1646 if (decoded_frame->pts != AV_NOPTS_VALUE)
1647 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1648 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1649 (AVRational){1, ist->st->codec->sample_rate});
1650 for (i = 0; i < ist->nb_filters; i++) {
1651 if (i < ist->nb_filters - 1) {
1652 f = ist->filter_frame;
1653 err = av_frame_ref(f, decoded_frame);
1658 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1659 AV_BUFFERSRC_FLAG_PUSH);
1660 if (err == AVERROR_EOF)
1661 err = 0; /* ignore */
1665 decoded_frame->pts = AV_NOPTS_VALUE;
1667 av_frame_unref(ist->filter_frame);
1668 av_frame_unref(decoded_frame);
1669 return err < 0 ? err : ret;
1672 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1674 AVFrame *decoded_frame, *f;
1675 int i, ret = 0, err = 0, resample_changed;
1676 int64_t best_effort_timestamp;
1677 AVRational *frame_sample_aspect;
1679 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1680 return AVERROR(ENOMEM);
1681 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1682 return AVERROR(ENOMEM);
1683 decoded_frame = ist->decoded_frame;
1684 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1686 update_benchmark(NULL);
1687 ret = avcodec_decode_video2(ist->st->codec,
1688 decoded_frame, got_output, pkt);
1689 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1691 if (*got_output || ret<0 || pkt->size)
1692 decode_error_stat[ret<0] ++;
1694 if (!*got_output || ret < 0) {
1696 for (i = 0; i < ist->nb_filters; i++)
1698 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1700 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1706 if(ist->top_field_first>=0)
1707 decoded_frame->top_field_first = ist->top_field_first;
1709 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1710 if(best_effort_timestamp != AV_NOPTS_VALUE)
1711 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1714 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1715 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1716 ist->st->index, av_ts2str(decoded_frame->pts),
1717 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1718 best_effort_timestamp,
1719 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1720 decoded_frame->key_frame, decoded_frame->pict_type);
1725 if (ist->st->sample_aspect_ratio.num)
1726 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1728 resample_changed = ist->resample_width != decoded_frame->width ||
1729 ist->resample_height != decoded_frame->height ||
1730 ist->resample_pix_fmt != decoded_frame->format;
1731 if (resample_changed) {
1732 av_log(NULL, AV_LOG_INFO,
1733 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1734 ist->file_index, ist->st->index,
1735 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1736 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1738 ist->resample_width = decoded_frame->width;
1739 ist->resample_height = decoded_frame->height;
1740 ist->resample_pix_fmt = decoded_frame->format;
1742 for (i = 0; i < nb_filtergraphs; i++) {
1743 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1744 configure_filtergraph(filtergraphs[i]) < 0) {
1745 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1751 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1752 for (i = 0; i < ist->nb_filters; i++) {
1753 if (!frame_sample_aspect->num)
1754 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1756 if (i < ist->nb_filters - 1) {
1757 f = ist->filter_frame;
1758 err = av_frame_ref(f, decoded_frame);
1763 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1764 if (ret == AVERROR_EOF) {
1765 ret = 0; /* ignore */
1766 } else if (ret < 0) {
1767 av_log(NULL, AV_LOG_FATAL,
1768 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1773 av_frame_unref(ist->filter_frame);
1774 av_frame_unref(decoded_frame);
1775 return err < 0 ? err : ret;
1778 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1780 AVSubtitle subtitle;
1781 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1782 &subtitle, got_output, pkt);
1784 if (*got_output || ret<0 || pkt->size)
1785 decode_error_stat[ret<0] ++;
1787 if (ret < 0 || !*got_output) {
1789 sub2video_flush(ist);
1793 if (ist->fix_sub_duration) {
1794 if (ist->prev_sub.got_output) {
1795 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1796 1000, AV_TIME_BASE);
1797 if (end < ist->prev_sub.subtitle.end_display_time) {
1798 av_log(ist->st->codec, AV_LOG_DEBUG,
1799 "Subtitle duration reduced from %d to %d\n",
1800 ist->prev_sub.subtitle.end_display_time, end);
1801 ist->prev_sub.subtitle.end_display_time = end;
1804 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1805 FFSWAP(int, ret, ist->prev_sub.ret);
1806 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1809 sub2video_update(ist, &subtitle);
1811 if (!*got_output || !subtitle.num_rects)
1814 for (i = 0; i < nb_output_streams; i++) {
1815 OutputStream *ost = output_streams[i];
1817 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1820 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1823 avsubtitle_free(&subtitle);
1827 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1828 static int output_packet(InputStream *ist, const AVPacket *pkt)
1834 if (!ist->saw_first_ts) {
1835 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;
1837 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1838 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1839 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1841 ist->saw_first_ts = 1;
1844 if (ist->next_dts == AV_NOPTS_VALUE)
1845 ist->next_dts = ist->dts;
1846 if (ist->next_pts == AV_NOPTS_VALUE)
1847 ist->next_pts = ist->pts;
1851 av_init_packet(&avpkt);
1859 if (pkt->dts != AV_NOPTS_VALUE) {
1860 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1861 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1862 ist->next_pts = ist->pts = ist->dts;
1865 // while we have more to decode or while the decoder did output something on EOF
1866 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1870 ist->pts = ist->next_pts;
1871 ist->dts = ist->next_dts;
1873 if (avpkt.size && avpkt.size != pkt->size) {
1874 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1875 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1876 ist->showed_multi_packet_warning = 1;
1879 switch (ist->st->codec->codec_type) {
1880 case AVMEDIA_TYPE_AUDIO:
1881 ret = decode_audio (ist, &avpkt, &got_output);
1883 case AVMEDIA_TYPE_VIDEO:
1884 ret = decode_video (ist, &avpkt, &got_output);
1885 if (avpkt.duration) {
1886 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1887 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1888 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1889 duration = ((int64_t)AV_TIME_BASE *
1890 ist->st->codec->time_base.num * ticks) /
1891 ist->st->codec->time_base.den;
1895 if(ist->dts != AV_NOPTS_VALUE && duration) {
1896 ist->next_dts += duration;
1898 ist->next_dts = AV_NOPTS_VALUE;
1901 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1903 case AVMEDIA_TYPE_SUBTITLE:
1904 ret = transcode_subtitles(ist, &avpkt, &got_output);
1914 avpkt.pts= AV_NOPTS_VALUE;
1916 // touch data and size only if not EOF
1918 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1928 /* handle stream copy */
1929 if (!ist->decoding_needed) {
1930 ist->dts = ist->next_dts;
1931 switch (ist->st->codec->codec_type) {
1932 case AVMEDIA_TYPE_AUDIO:
1933 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1934 ist->st->codec->sample_rate;
1936 case AVMEDIA_TYPE_VIDEO:
1937 if (ist->framerate.num) {
1938 // TODO: Remove work-around for c99-to-c89 issue 7
1939 AVRational time_base_q = AV_TIME_BASE_Q;
1940 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
1941 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
1942 } else if (pkt->duration) {
1943 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1944 } else if(ist->st->codec->time_base.num != 0) {
1945 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1946 ist->next_dts += ((int64_t)AV_TIME_BASE *
1947 ist->st->codec->time_base.num * ticks) /
1948 ist->st->codec->time_base.den;
1952 ist->pts = ist->dts;
1953 ist->next_pts = ist->next_dts;
1955 for (i = 0; pkt && i < nb_output_streams; i++) {
1956 OutputStream *ost = output_streams[i];
1958 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1961 do_streamcopy(ist, ost, pkt);
1967 static void print_sdp(void)
1971 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1975 for (i = 0; i < nb_output_files; i++)
1976 avc[i] = output_files[i]->ctx;
1978 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1979 printf("SDP:\n%s\n", sdp);
1984 static int init_input_stream(int ist_index, char *error, int error_len)
1987 InputStream *ist = input_streams[ist_index];
1989 if (ist->decoding_needed) {
1990 AVCodec *codec = ist->dec;
1992 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1993 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1994 return AVERROR(EINVAL);
1997 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1999 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2000 av_dict_set(&ist->opts, "threads", "auto", 0);
2001 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
2003 if (ret == AVERROR_EXPERIMENTAL)
2004 abort_codec_experimental(codec, 0);
2006 av_strerror(ret, errbuf, sizeof(errbuf));
2008 snprintf(error, error_len,
2009 "Error while opening decoder for input stream "
2011 ist->file_index, ist->st->index, errbuf);
2014 assert_avoptions(ist->opts);
2017 ist->next_pts = AV_NOPTS_VALUE;
2018 ist->next_dts = AV_NOPTS_VALUE;
2024 static InputStream *get_input_stream(OutputStream *ost)
2026 if (ost->source_index >= 0)
2027 return input_streams[ost->source_index];
2031 static int compare_int64(const void *a, const void *b)
2033 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2034 return va < vb ? -1 : va > vb ? +1 : 0;
2037 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2038 AVCodecContext *avctx)
2041 int n = 1, i, size, index = 0;
2044 for (p = kf; *p; p++)
2048 pts = av_malloc(sizeof(*pts) * size);
2050 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2055 for (i = 0; i < n; i++) {
2056 char *next = strchr(p, ',');
2061 if (!memcmp(p, "chapters", 8)) {
2063 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2066 if (avf->nb_chapters > INT_MAX - size ||
2067 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2069 av_log(NULL, AV_LOG_FATAL,
2070 "Could not allocate forced key frames array.\n");
2073 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2074 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2076 for (j = 0; j < avf->nb_chapters; j++) {
2077 AVChapter *c = avf->chapters[j];
2078 av_assert1(index < size);
2079 pts[index++] = av_rescale_q(c->start, c->time_base,
2080 avctx->time_base) + t;
2085 t = parse_time_or_die("force_key_frames", p, 1);
2086 av_assert1(index < size);
2087 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2094 av_assert0(index == size);
2095 qsort(pts, size, sizeof(*pts), compare_int64);
2096 ost->forced_kf_count = size;
2097 ost->forced_kf_pts = pts;
2100 static void report_new_stream(int input_index, AVPacket *pkt)
2102 InputFile *file = input_files[input_index];
2103 AVStream *st = file->ctx->streams[pkt->stream_index];
2105 if (pkt->stream_index < file->nb_streams_warn)
2107 av_log(file->ctx, AV_LOG_WARNING,
2108 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2109 av_get_media_type_string(st->codec->codec_type),
2110 input_index, pkt->stream_index,
2111 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2112 file->nb_streams_warn = pkt->stream_index + 1;
2115 static int transcode_init(void)
2117 int ret = 0, i, j, k;
2118 AVFormatContext *oc;
2119 AVCodecContext *codec;
2125 for (i = 0; i < nb_filtergraphs; i++) {
2126 FilterGraph *fg = filtergraphs[i];
2127 for (j = 0; j < fg->nb_outputs; j++) {
2128 OutputFilter *ofilter = fg->outputs[j];
2129 if (!ofilter->ost || ofilter->ost->source_index >= 0)
2131 if (fg->nb_inputs != 1)
2133 for (k = nb_input_streams-1; k >= 0 ; k--)
2134 if (fg->inputs[0]->ist == input_streams[k])
2136 ofilter->ost->source_index = k;
2140 /* init framerate emulation */
2141 for (i = 0; i < nb_input_files; i++) {
2142 InputFile *ifile = input_files[i];
2143 if (ifile->rate_emu)
2144 for (j = 0; j < ifile->nb_streams; j++)
2145 input_streams[j + ifile->ist_index]->start = av_gettime();
2148 /* output stream init */
2149 for (i = 0; i < nb_output_files; i++) {
2150 oc = output_files[i]->ctx;
2151 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2152 av_dump_format(oc, i, oc->filename, 1);
2153 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2154 return AVERROR(EINVAL);
2158 /* init complex filtergraphs */
2159 for (i = 0; i < nb_filtergraphs; i++)
2160 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2163 /* for each output stream, we compute the right encoding parameters */
2164 for (i = 0; i < nb_output_streams; i++) {
2165 AVCodecContext *icodec = NULL;
2166 ost = output_streams[i];
2167 oc = output_files[ost->file_index]->ctx;
2168 ist = get_input_stream(ost);
2170 if (ost->attachment_filename)
2173 codec = ost->st->codec;
2176 icodec = ist->st->codec;
2178 ost->st->disposition = ist->st->disposition;
2179 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2180 codec->chroma_sample_location = icodec->chroma_sample_location;
2182 for (j=0; j<oc->nb_streams; j++) {
2183 AVStream *st = oc->streams[j];
2184 if (st != ost->st && st->codec->codec_type == codec->codec_type)
2187 if (j == oc->nb_streams)
2188 if (codec->codec_type == AVMEDIA_TYPE_AUDIO || codec->codec_type == AVMEDIA_TYPE_VIDEO)
2189 ost->st->disposition = AV_DISPOSITION_DEFAULT;
2192 if (ost->stream_copy) {
2194 uint64_t extra_size;
2196 av_assert0(ist && !ost->filter);
2198 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2200 if (extra_size > INT_MAX) {
2201 return AVERROR(EINVAL);
2204 /* if stream_copy is selected, no need to decode or encode */
2205 codec->codec_id = icodec->codec_id;
2206 codec->codec_type = icodec->codec_type;
2208 if (!codec->codec_tag) {
2209 unsigned int codec_tag;
2210 if (!oc->oformat->codec_tag ||
2211 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2212 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2213 codec->codec_tag = icodec->codec_tag;
2216 codec->bit_rate = icodec->bit_rate;
2217 codec->rc_max_rate = icodec->rc_max_rate;
2218 codec->rc_buffer_size = icodec->rc_buffer_size;
2219 codec->field_order = icodec->field_order;
2220 codec->extradata = av_mallocz(extra_size);
2221 if (!codec->extradata) {
2222 return AVERROR(ENOMEM);
2224 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2225 codec->extradata_size= icodec->extradata_size;
2226 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2228 codec->time_base = ist->st->time_base;
2230 * Avi is a special case here because it supports variable fps but
2231 * having the fps and timebase differe significantly adds quite some
2234 if(!strcmp(oc->oformat->name, "avi")) {
2235 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2236 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2237 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2238 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2240 codec->time_base.num = ist->st->r_frame_rate.den;
2241 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2242 codec->ticks_per_frame = 2;
2243 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2244 && av_q2d(ist->st->time_base) < 1.0/500
2246 codec->time_base = icodec->time_base;
2247 codec->time_base.num *= icodec->ticks_per_frame;
2248 codec->time_base.den *= 2;
2249 codec->ticks_per_frame = 2;
2251 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2252 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2253 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2254 && strcmp(oc->oformat->name, "f4v")
2256 if( copy_tb<0 && icodec->time_base.den
2257 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2258 && av_q2d(ist->st->time_base) < 1.0/500
2260 codec->time_base = icodec->time_base;
2261 codec->time_base.num *= icodec->ticks_per_frame;
2264 if ( codec->codec_tag == AV_RL32("tmcd")
2265 && icodec->time_base.num < icodec->time_base.den
2266 && icodec->time_base.num > 0
2267 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2268 codec->time_base = icodec->time_base;
2271 if (ist && !ost->frame_rate.num)
2272 ost->frame_rate = ist->framerate;
2273 if(ost->frame_rate.num)
2274 codec->time_base = av_inv_q(ost->frame_rate);
2276 av_reduce(&codec->time_base.num, &codec->time_base.den,
2277 codec->time_base.num, codec->time_base.den, INT_MAX);
2279 ost->parser = av_parser_init(codec->codec_id);
2281 switch (codec->codec_type) {
2282 case AVMEDIA_TYPE_AUDIO:
2283 if (audio_volume != 256) {
2284 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2287 codec->channel_layout = icodec->channel_layout;
2288 codec->sample_rate = icodec->sample_rate;
2289 codec->channels = icodec->channels;
2290 codec->frame_size = icodec->frame_size;
2291 codec->audio_service_type = icodec->audio_service_type;
2292 codec->block_align = icodec->block_align;
2293 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2294 codec->block_align= 0;
2295 if(codec->codec_id == AV_CODEC_ID_AC3)
2296 codec->block_align= 0;
2298 case AVMEDIA_TYPE_VIDEO:
2299 codec->pix_fmt = icodec->pix_fmt;
2300 codec->width = icodec->width;
2301 codec->height = icodec->height;
2302 codec->has_b_frames = icodec->has_b_frames;
2303 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2305 av_mul_q(ost->frame_aspect_ratio,
2306 (AVRational){ codec->height, codec->width });
2307 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2308 "with stream copy may produce invalid files\n");
2310 else if (ist->st->sample_aspect_ratio.num)
2311 sar = ist->st->sample_aspect_ratio;
2313 sar = icodec->sample_aspect_ratio;
2314 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
2315 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2317 case AVMEDIA_TYPE_SUBTITLE:
2318 codec->width = icodec->width;
2319 codec->height = icodec->height;
2321 case AVMEDIA_TYPE_DATA:
2322 case AVMEDIA_TYPE_ATTACHMENT:
2329 ost->enc = avcodec_find_encoder(codec->codec_id);
2331 /* should only happen when a default codec is not present. */
2332 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2333 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2334 ret = AVERROR(EINVAL);
2339 ist->decoding_needed++;
2340 ost->encoding_needed = 1;
2343 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2344 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2346 fg = init_simple_filtergraph(ist, ost);
2347 if (configure_filtergraph(fg)) {
2348 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2353 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2354 if (ost->filter && !ost->frame_rate.num)
2355 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2356 if (ist && !ost->frame_rate.num)
2357 ost->frame_rate = ist->framerate;
2358 if (ist && !ost->frame_rate.num)
2359 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2360 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2361 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2362 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2363 ost->frame_rate = ost->enc->supported_framerates[idx];
2367 switch (codec->codec_type) {
2368 case AVMEDIA_TYPE_AUDIO:
2369 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2370 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2371 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2372 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2373 codec->time_base = (AVRational){ 1, codec->sample_rate };
2375 case AVMEDIA_TYPE_VIDEO:
2376 codec->time_base = av_inv_q(ost->frame_rate);
2377 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2378 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2379 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2380 && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2381 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2382 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2384 for (j = 0; j < ost->forced_kf_count; j++)
2385 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2389 codec->width = ost->filter->filter->inputs[0]->w;
2390 codec->height = ost->filter->filter->inputs[0]->h;
2391 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2392 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2393 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2394 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2395 if (!strncmp(ost->enc->name, "libx264", 7) &&
2396 codec->pix_fmt == AV_PIX_FMT_NONE &&
2397 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2398 av_log(NULL, AV_LOG_WARNING,
2399 "No pixel format specified, %s for H.264 encoding chosen.\n"
2400 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2401 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2402 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2403 codec->pix_fmt == AV_PIX_FMT_NONE &&
2404 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2405 av_log(NULL, AV_LOG_WARNING,
2406 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2407 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2408 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2409 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2412 codec->width != icodec->width ||
2413 codec->height != icodec->height ||
2414 codec->pix_fmt != icodec->pix_fmt) {
2415 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2418 if (ost->forced_keyframes) {
2419 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2420 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2421 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2423 av_log(NULL, AV_LOG_ERROR,
2424 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2427 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2428 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2429 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2430 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2432 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2436 case AVMEDIA_TYPE_SUBTITLE:
2437 codec->time_base = (AVRational){1, 1000};
2438 if (!codec->width) {
2439 codec->width = input_streams[ost->source_index]->st->codec->width;
2440 codec->height = input_streams[ost->source_index]->st->codec->height;
2448 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2449 char logfilename[1024];
2452 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2453 ost->logfile_prefix ? ost->logfile_prefix :
2454 DEFAULT_PASS_LOGFILENAME_PREFIX,
2456 if (!strcmp(ost->enc->name, "libx264")) {
2457 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2459 if (codec->flags & CODEC_FLAG_PASS2) {
2461 size_t logbuffer_size;
2462 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2463 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2467 codec->stats_in = logbuffer;
2469 if (codec->flags & CODEC_FLAG_PASS1) {
2470 f = fopen(logfilename, "wb");
2472 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2473 logfilename, strerror(errno));
2483 /* open each encoder */
2484 for (i = 0; i < nb_output_streams; i++) {
2485 ost = output_streams[i];
2486 if (ost->encoding_needed) {
2487 AVCodec *codec = ost->enc;
2488 AVCodecContext *dec = NULL;
2490 if ((ist = get_input_stream(ost)))
2491 dec = ist->st->codec;
2492 if (dec && dec->subtitle_header) {
2493 /* ASS code assumes this buffer is null terminated so add extra byte. */
2494 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2495 if (!ost->st->codec->subtitle_header) {
2496 ret = AVERROR(ENOMEM);
2499 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2500 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2502 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2503 av_dict_set(&ost->opts, "threads", "auto", 0);
2504 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2505 if (ret == AVERROR_EXPERIMENTAL)
2506 abort_codec_experimental(codec, 1);
2507 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2508 ost->file_index, ost->index);
2511 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2512 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2513 av_buffersink_set_frame_size(ost->filter->filter,
2514 ost->st->codec->frame_size);
2515 assert_avoptions(ost->opts);
2516 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2517 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2518 " It takes bits/s as argument, not kbits/s\n");
2519 extra_size += ost->st->codec->extradata_size;
2521 av_opt_set_dict(ost->st->codec, &ost->opts);
2525 /* init input streams */
2526 for (i = 0; i < nb_input_streams; i++)
2527 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2528 for (i = 0; i < nb_output_streams; i++) {
2529 ost = output_streams[i];
2530 avcodec_close(ost->st->codec);
2535 /* discard unused programs */
2536 for (i = 0; i < nb_input_files; i++) {
2537 InputFile *ifile = input_files[i];
2538 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2539 AVProgram *p = ifile->ctx->programs[j];
2540 int discard = AVDISCARD_ALL;
2542 for (k = 0; k < p->nb_stream_indexes; k++)
2543 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2544 discard = AVDISCARD_DEFAULT;
2547 p->discard = discard;
2551 /* open files and write file headers */
2552 for (i = 0; i < nb_output_files; i++) {
2553 oc = output_files[i]->ctx;
2554 oc->interrupt_callback = int_cb;
2555 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2557 av_strerror(ret, errbuf, sizeof(errbuf));
2558 snprintf(error, sizeof(error),
2559 "Could not write header for output file #%d "
2560 "(incorrect codec parameters ?): %s",
2562 ret = AVERROR(EINVAL);
2565 // assert_avoptions(output_files[i]->opts);
2566 if (strcmp(oc->oformat->name, "rtp")) {
2572 /* dump the file output parameters - cannot be done before in case
2574 for (i = 0; i < nb_output_files; i++) {
2575 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2578 /* dump the stream mapping */
2579 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2580 for (i = 0; i < nb_input_streams; i++) {
2581 ist = input_streams[i];
2583 for (j = 0; j < ist->nb_filters; j++) {
2584 if (ist->filters[j]->graph->graph_desc) {
2585 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2586 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2587 ist->filters[j]->name);
2588 if (nb_filtergraphs > 1)
2589 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2590 av_log(NULL, AV_LOG_INFO, "\n");
2595 for (i = 0; i < nb_output_streams; i++) {
2596 ost = output_streams[i];
2598 if (ost->attachment_filename) {
2599 /* an attached file */
2600 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2601 ost->attachment_filename, ost->file_index, ost->index);
2605 if (ost->filter && ost->filter->graph->graph_desc) {
2606 /* output from a complex graph */
2607 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2608 if (nb_filtergraphs > 1)
2609 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2611 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2612 ost->index, ost->enc ? ost->enc->name : "?");
2616 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2617 input_streams[ost->source_index]->file_index,
2618 input_streams[ost->source_index]->st->index,
2621 if (ost->sync_ist != input_streams[ost->source_index])
2622 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2623 ost->sync_ist->file_index,
2624 ost->sync_ist->st->index);
2625 if (ost->stream_copy)
2626 av_log(NULL, AV_LOG_INFO, " (copy)");
2628 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2629 input_streams[ost->source_index]->dec->name : "?",
2630 ost->enc ? ost->enc->name : "?");
2631 av_log(NULL, AV_LOG_INFO, "\n");
2635 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2646 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2647 static int need_output(void)
2651 for (i = 0; i < nb_output_streams; i++) {
2652 OutputStream *ost = output_streams[i];
2653 OutputFile *of = output_files[ost->file_index];
2654 AVFormatContext *os = output_files[ost->file_index]->ctx;
2656 if (ost->finished ||
2657 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2659 if (ost->frame_number >= ost->max_frames) {
2661 for (j = 0; j < of->ctx->nb_streams; j++)
2662 close_output_stream(output_streams[of->ost_index + j]);
2673 * Select the output stream to process.
2675 * @return selected output stream, or NULL if none available
2677 static OutputStream *choose_output(void)
2680 int64_t opts_min = INT64_MAX;
2681 OutputStream *ost_min = NULL;
2683 for (i = 0; i < nb_output_streams; i++) {
2684 OutputStream *ost = output_streams[i];
2685 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2687 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2695 static int check_keyboard_interaction(int64_t cur_time)
2698 static int64_t last_time;
2699 if (received_nb_signals)
2700 return AVERROR_EXIT;
2701 /* read_key() returns 0 on EOF */
2702 if(cur_time - last_time >= 100000 && !run_as_daemon){
2704 last_time = cur_time;
2708 return AVERROR_EXIT;
2709 if (key == '+') av_log_set_level(av_log_get_level()+10);
2710 if (key == '-') av_log_set_level(av_log_get_level()-10);
2711 if (key == 's') qp_hist ^= 1;
2714 do_hex_dump = do_pkt_dump = 0;
2715 } else if(do_pkt_dump){
2719 av_log_set_level(AV_LOG_DEBUG);
2721 if (key == 'c' || key == 'C'){
2722 char buf[4096], target[64], command[256], arg[256] = {0};
2725 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
2727 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2732 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2733 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2734 target, time, command, arg);
2735 for (i = 0; i < nb_filtergraphs; i++) {
2736 FilterGraph *fg = filtergraphs[i];
2739 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2740 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2741 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
2742 } else if (key == 'c') {
2743 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
2744 ret = AVERROR_PATCHWELCOME;
2746 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2751 av_log(NULL, AV_LOG_ERROR,
2752 "Parse error, at least 3 arguments were expected, "
2753 "only %d given in string '%s'\n", n, buf);
2756 if (key == 'd' || key == 'D'){
2759 debug = input_streams[0]->st->codec->debug<<1;
2760 if(!debug) debug = 1;
2761 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2764 if(scanf("%d", &debug)!=1)
2765 fprintf(stderr,"error parsing debug value\n");
2766 for(i=0;i<nb_input_streams;i++) {
2767 input_streams[i]->st->codec->debug = debug;
2769 for(i=0;i<nb_output_streams;i++) {
2770 OutputStream *ost = output_streams[i];
2771 ost->st->codec->debug = debug;
2773 if(debug) av_log_set_level(AV_LOG_DEBUG);
2774 fprintf(stderr,"debug=%d\n", debug);
2777 fprintf(stderr, "key function\n"
2778 "? show this help\n"
2779 "+ increase verbosity\n"
2780 "- decrease verbosity\n"
2781 "c Send command to first matching filter supporting it\n"
2782 "C Send/Que command to all matching filters\n"
2783 "D cycle through available debug modes\n"
2784 "h dump packets/hex press to cycle through the 3 states\n"
2786 "s Show QP histogram\n"
2793 static void *input_thread(void *arg)
2798 while (!transcoding_finished && ret >= 0) {
2800 ret = av_read_frame(f->ctx, &pkt);
2802 if (ret == AVERROR(EAGAIN)) {
2809 pthread_mutex_lock(&f->fifo_lock);
2810 while (!av_fifo_space(f->fifo))
2811 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2813 av_dup_packet(&pkt);
2814 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2816 pthread_mutex_unlock(&f->fifo_lock);
2823 static void free_input_threads(void)
2827 if (nb_input_files == 1)
2830 transcoding_finished = 1;
2832 for (i = 0; i < nb_input_files; i++) {
2833 InputFile *f = input_files[i];
2836 if (!f->fifo || f->joined)
2839 pthread_mutex_lock(&f->fifo_lock);
2840 while (av_fifo_size(f->fifo)) {
2841 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2842 av_free_packet(&pkt);
2844 pthread_cond_signal(&f->fifo_cond);
2845 pthread_mutex_unlock(&f->fifo_lock);
2847 pthread_join(f->thread, NULL);
2850 while (av_fifo_size(f->fifo)) {
2851 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2852 av_free_packet(&pkt);
2854 av_fifo_free(f->fifo);
2858 static int init_input_threads(void)
2862 if (nb_input_files == 1)
2865 for (i = 0; i < nb_input_files; i++) {
2866 InputFile *f = input_files[i];
2868 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2869 return AVERROR(ENOMEM);
2871 pthread_mutex_init(&f->fifo_lock, NULL);
2872 pthread_cond_init (&f->fifo_cond, NULL);
2874 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2875 return AVERROR(ret);
2880 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2884 pthread_mutex_lock(&f->fifo_lock);
2886 if (av_fifo_size(f->fifo)) {
2887 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2888 pthread_cond_signal(&f->fifo_cond);
2893 ret = AVERROR(EAGAIN);
2896 pthread_mutex_unlock(&f->fifo_lock);
2902 static int get_input_packet(InputFile *f, AVPacket *pkt)
2906 for (i = 0; i < f->nb_streams; i++) {
2907 InputStream *ist = input_streams[f->ist_index + i];
2908 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2909 int64_t now = av_gettime() - ist->start;
2911 return AVERROR(EAGAIN);
2916 if (nb_input_files > 1)
2917 return get_input_packet_mt(f, pkt);
2919 return av_read_frame(f->ctx, pkt);
2922 static int got_eagain(void)
2925 for (i = 0; i < nb_output_streams; i++)
2926 if (output_streams[i]->unavailable)
2931 static void reset_eagain(void)
2934 for (i = 0; i < nb_input_files; i++)
2935 input_files[i]->eagain = 0;
2936 for (i = 0; i < nb_output_streams; i++)
2937 output_streams[i]->unavailable = 0;
2942 * - 0 -- one packet was read and processed
2943 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2944 * this function should be called again
2945 * - AVERROR_EOF -- this function should not be called again
2947 static int process_input(int file_index)
2949 InputFile *ifile = input_files[file_index];
2950 AVFormatContext *is;
2956 ret = get_input_packet(ifile, &pkt);
2958 if (ret == AVERROR(EAGAIN)) {
2963 if (ret != AVERROR_EOF) {
2964 print_error(is->filename, ret);
2968 ifile->eof_reached = 1;
2970 for (i = 0; i < ifile->nb_streams; i++) {
2971 ist = input_streams[ifile->ist_index + i];
2972 if (ist->decoding_needed)
2973 output_packet(ist, NULL);
2975 /* mark all outputs that don't go through lavfi as finished */
2976 for (j = 0; j < nb_output_streams; j++) {
2977 OutputStream *ost = output_streams[j];
2979 if (ost->source_index == ifile->ist_index + i &&
2980 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2981 close_output_stream(ost);
2985 return AVERROR(EAGAIN);
2991 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2992 is->streams[pkt.stream_index]);
2994 /* the following test is needed in case new streams appear
2995 dynamically in stream : we ignore them */
2996 if (pkt.stream_index >= ifile->nb_streams) {
2997 report_new_stream(file_index, &pkt);
2998 goto discard_packet;
3001 ist = input_streams[ifile->ist_index + pkt.stream_index];
3003 goto discard_packet;
3006 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3007 "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",
3008 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3009 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
3010 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
3011 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3012 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3013 av_ts2str(input_files[ist->file_index]->ts_offset),
3014 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3017 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3018 int64_t stime, stime2;
3019 // Correcting starttime based on the enabled streams
3020 // 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.
3021 // so we instead do it here as part of discontinuity handling
3022 if ( ist->next_dts == AV_NOPTS_VALUE
3023 && ifile->ts_offset == -is->start_time
3024 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3025 int64_t new_start_time = INT64_MAX;
3026 for (i=0; i<is->nb_streams; i++) {
3027 AVStream *st = is->streams[i];
3028 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3030 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3032 if (new_start_time > is->start_time) {
3033 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3034 ifile->ts_offset = -new_start_time;
3038 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3039 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3040 ist->wrap_correction_done = 1;
3042 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3043 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3044 ist->wrap_correction_done = 0;
3046 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3047 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3048 ist->wrap_correction_done = 0;
3052 if (pkt.dts != AV_NOPTS_VALUE)
3053 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3054 if (pkt.pts != AV_NOPTS_VALUE)
3055 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3057 if (pkt.pts != AV_NOPTS_VALUE)
3058 pkt.pts *= ist->ts_scale;
3059 if (pkt.dts != AV_NOPTS_VALUE)
3060 pkt.dts *= ist->ts_scale;
3062 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3063 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3064 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3065 int64_t delta = pkt_dts - ifile->last_ts;
3066 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3067 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3068 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3069 ifile->ts_offset -= delta;
3070 av_log(NULL, AV_LOG_DEBUG,
3071 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3072 delta, ifile->ts_offset);
3073 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3074 if (pkt.pts != AV_NOPTS_VALUE)
3075 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3079 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3081 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3082 int64_t delta = pkt_dts - ist->next_dts;
3083 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3084 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3085 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3086 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3087 pkt_dts + AV_TIME_BASE/10 < ist->pts){
3088 ifile->ts_offset -= delta;
3089 av_log(NULL, AV_LOG_DEBUG,
3090 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3091 delta, ifile->ts_offset);
3092 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3093 if (pkt.pts != AV_NOPTS_VALUE)
3094 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3097 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3098 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3100 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3101 pkt.dts = AV_NOPTS_VALUE;
3103 if (pkt.pts != AV_NOPTS_VALUE){
3104 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3105 delta = pkt_pts - ist->next_dts;
3106 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3107 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
3109 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3110 pkt.pts = AV_NOPTS_VALUE;
3116 if (pkt.dts != AV_NOPTS_VALUE)
3117 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3120 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",
3121 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3122 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3123 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3124 av_ts2str(input_files[ist->file_index]->ts_offset),
3125 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3128 sub2video_heartbeat(ist, pkt.pts);
3130 ret = output_packet(ist, &pkt);
3133 av_strerror(ret, buf, sizeof(buf));
3134 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3135 ist->file_index, ist->st->index, buf);
3141 av_free_packet(&pkt);
3147 * Perform a step of transcoding for the specified filter graph.
3149 * @param[in] graph filter graph to consider
3150 * @param[out] best_ist input stream where a frame would allow to continue
3151 * @return 0 for success, <0 for error
3153 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3156 int nb_requests, nb_requests_max = 0;
3157 InputFilter *ifilter;
3161 ret = avfilter_graph_request_oldest(graph->graph);
3163 return reap_filters();
3165 if (ret == AVERROR_EOF) {
3166 ret = reap_filters();
3167 for (i = 0; i < graph->nb_outputs; i++)
3168 close_output_stream(graph->outputs[i]->ost);
3171 if (ret != AVERROR(EAGAIN))
3174 for (i = 0; i < graph->nb_inputs; i++) {
3175 ifilter = graph->inputs[i];
3177 if (input_files[ist->file_index]->eagain ||
3178 input_files[ist->file_index]->eof_reached)
3180 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3181 if (nb_requests > nb_requests_max) {
3182 nb_requests_max = nb_requests;
3188 for (i = 0; i < graph->nb_outputs; i++)
3189 graph->outputs[i]->ost->unavailable = 1;
3195 * Run a single step of transcoding.
3197 * @return 0 for success, <0 for error
3199 static int transcode_step(void)
3205 ost = choose_output();
3212 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3217 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3222 av_assert0(ost->source_index >= 0);
3223 ist = input_streams[ost->source_index];
3226 ret = process_input(ist->file_index);
3227 if (ret == AVERROR(EAGAIN)) {
3228 if (input_files[ist->file_index]->eagain)
3229 ost->unavailable = 1;
3233 return ret == AVERROR_EOF ? 0 : ret;
3235 return reap_filters();
3239 * The following code is the main loop of the file converter
3241 static int transcode(void)
3244 AVFormatContext *os;
3247 int64_t timer_start;
3249 ret = transcode_init();
3253 if (stdin_interaction) {
3254 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3257 timer_start = av_gettime();
3260 if ((ret = init_input_threads()) < 0)
3264 while (!received_sigterm) {
3265 int64_t cur_time= av_gettime();
3267 /* if 'q' pressed, exits */
3268 if (stdin_interaction)
3269 if (check_keyboard_interaction(cur_time) < 0)
3272 /* check if there's any stream where output is still needed */
3273 if (!need_output()) {
3274 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3278 ret = transcode_step();
3280 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3283 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3287 /* dump report by using the output first video and audio streams */
3288 print_report(0, timer_start, cur_time);
3291 free_input_threads();
3294 /* at the end of stream, we must flush the decoder buffers */
3295 for (i = 0; i < nb_input_streams; i++) {
3296 ist = input_streams[i];
3297 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3298 output_packet(ist, NULL);
3305 /* write the trailer if needed and close file */
3306 for (i = 0; i < nb_output_files; i++) {
3307 os = output_files[i]->ctx;
3308 av_write_trailer(os);
3311 /* dump report by using the first video and audio streams */
3312 print_report(1, timer_start, av_gettime());
3314 /* close each encoder */
3315 for (i = 0; i < nb_output_streams; i++) {
3316 ost = output_streams[i];
3317 if (ost->encoding_needed) {
3318 av_freep(&ost->st->codec->stats_in);
3319 avcodec_close(ost->st->codec);
3323 /* close each decoder */
3324 for (i = 0; i < nb_input_streams; i++) {
3325 ist = input_streams[i];
3326 if (ist->decoding_needed) {
3327 avcodec_close(ist->st->codec);
3336 free_input_threads();
3339 if (output_streams) {
3340 for (i = 0; i < nb_output_streams; i++) {
3341 ost = output_streams[i];
3343 if (ost->stream_copy)
3344 av_freep(&ost->st->codec->extradata);
3346 fclose(ost->logfile);
3347 ost->logfile = NULL;
3349 av_freep(&ost->st->codec->subtitle_header);
3350 av_freep(&ost->forced_kf_pts);
3351 av_freep(&ost->apad);
3352 av_dict_free(&ost->opts);
3353 av_dict_free(&ost->swr_opts);
3354 av_dict_free(&ost->resample_opts);
3362 static int64_t getutime(void)
3365 struct rusage rusage;
3367 getrusage(RUSAGE_SELF, &rusage);
3368 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3369 #elif HAVE_GETPROCESSTIMES
3371 FILETIME c, e, k, u;
3372 proc = GetCurrentProcess();
3373 GetProcessTimes(proc, &c, &e, &k, &u);
3374 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3376 return av_gettime();
3380 static int64_t getmaxrss(void)
3382 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3383 struct rusage rusage;
3384 getrusage(RUSAGE_SELF, &rusage);
3385 return (int64_t)rusage.ru_maxrss * 1024;
3386 #elif HAVE_GETPROCESSMEMORYINFO
3388 PROCESS_MEMORY_COUNTERS memcounters;
3389 proc = GetCurrentProcess();
3390 memcounters.cb = sizeof(memcounters);
3391 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3392 return memcounters.PeakPagefileUsage;
3398 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3402 int main(int argc, char **argv)
3407 register_exit(ffmpeg_cleanup);
3409 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3411 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3412 parse_loglevel(argc, argv, options);
3414 if(argc>1 && !strcmp(argv[1], "-d")){
3416 av_log_set_callback(log_callback_null);
3421 avcodec_register_all();
3423 avdevice_register_all();
3425 avfilter_register_all();
3427 avformat_network_init();
3429 show_banner(argc, argv, options);
3433 /* parse options and open all input/output files */
3434 ret = ffmpeg_parse_options(argc, argv);
3438 if (nb_output_files <= 0 && nb_input_files == 0) {
3440 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3444 /* file converter / grab */
3445 if (nb_output_files <= 0) {
3446 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3450 // if (nb_input_files == 0) {
3451 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3455 current_time = ti = getutime();
3456 if (transcode() < 0)
3458 ti = getutime() - ti;
3460 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3462 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3463 decode_error_stat[0], decode_error_stat[1]);
3464 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3467 exit_program(received_nb_signals ? 255 : 0);