2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
41 #include "libavformat/avformat.h"
42 #include "libavdevice/avdevice.h"
43 #include "libswscale/swscale.h"
44 #include "libswresample/swresample.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/channel_layout.h"
47 #include "libavutil/parseutils.h"
48 #include "libavutil/samplefmt.h"
49 #include "libavutil/colorspace.h"
50 #include "libavutil/fifo.h"
51 #include "libavutil/intreadwrite.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/mathematics.h"
54 #include "libavutil/pixdesc.h"
55 #include "libavutil/avstring.h"
56 #include "libavutil/libm.h"
57 #include "libavutil/imgutils.h"
58 #include "libavutil/timestamp.h"
59 #include "libavutil/bprint.h"
60 #include "libavutil/time.h"
61 #include "libavformat/os_support.h"
63 #include "libavformat/ffm.h" // not public API
65 # include "libavfilter/avcodec.h"
66 # include "libavfilter/avfilter.h"
67 # include "libavfilter/avfiltergraph.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 static void do_video_stats(OutputStream *ost, int frame_size);
113 static int64_t getutime(void);
115 static int run_as_daemon = 0;
116 static int64_t video_size = 0;
117 static int64_t audio_size = 0;
118 static int64_t subtitle_size = 0;
119 static int64_t extra_size = 0;
120 static int nb_frames_dup = 0;
121 static int nb_frames_drop = 0;
123 static int current_time;
124 AVIOContext *progress_avio = NULL;
126 static uint8_t *subtitle_out;
129 /* signal to input threads that they should exit; set by the main thread */
130 static int transcoding_finished;
133 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
135 InputStream **input_streams = NULL;
136 int nb_input_streams = 0;
137 InputFile **input_files = NULL;
138 int nb_input_files = 0;
140 OutputStream **output_streams = NULL;
141 int nb_output_streams = 0;
142 OutputFile **output_files = NULL;
143 int nb_output_files = 0;
145 FilterGraph **filtergraphs;
150 /* init terminal so that we can grab keys */
151 static struct termios oldtty;
152 static int restore_tty;
157 Convert subtitles to video with alpha to insert them in filter graphs.
158 This is a temporary solution until libavfilter gets real subtitles support.
163 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
166 uint32_t *pal, *dst2;
170 if (r->type != SUBTITLE_BITMAP) {
171 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
174 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
175 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
179 dst += r->y * dst_linesize + r->x * 4;
180 src = r->pict.data[0];
181 pal = (uint32_t *)r->pict.data[1];
182 for (y = 0; y < r->h; y++) {
183 dst2 = (uint32_t *)dst;
185 for (x = 0; x < r->w; x++)
186 *(dst2++) = pal[*(src2++)];
188 src += r->pict.linesize[0];
192 static void sub2video_push_ref(InputStream *ist, int64_t pts)
194 AVFilterBufferRef *ref = ist->sub2video.ref;
197 ist->sub2video.last_pts = ref->pts = pts;
198 for (i = 0; i < ist->nb_filters; i++)
199 av_buffersrc_add_ref(ist->filters[i]->filter,
200 avfilter_ref_buffer(ref, ~0),
201 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
202 AV_BUFFERSRC_FLAG_NO_COPY |
203 AV_BUFFERSRC_FLAG_PUSH);
206 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
208 int w = ist->sub2video.w, h = ist->sub2video.h;
209 AVFilterBufferRef *ref = ist->sub2video.ref;
213 int64_t pts, end_pts;
218 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
219 AV_TIME_BASE_Q, ist->st->time_base);
220 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
221 AV_TIME_BASE_Q, ist->st->time_base);
222 num_rects = sub->num_rects;
224 pts = ist->sub2video.end_pts;
229 dst_linesize = ref->linesize[0];
230 memset(dst, 0, h * dst_linesize);
231 for (i = 0; i < num_rects; i++)
232 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
233 sub2video_push_ref(ist, pts);
234 ist->sub2video.end_pts = end_pts;
237 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
239 InputFile *infile = input_files[ist->file_index];
243 /* When a frame is read from a file, examine all sub2video streams in
244 the same file and send the sub2video frame again. Otherwise, decoded
245 video frames could be accumulating in the filter graph while a filter
246 (possibly overlay) is desperately waiting for a subtitle frame. */
247 for (i = 0; i < infile->nb_streams; i++) {
248 InputStream *ist2 = input_streams[infile->ist_index + i];
249 if (!ist2->sub2video.ref)
251 /* subtitles seem to be usually muxed ahead of other streams;
252 if not, substracting a larger time here is necessary */
253 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
254 /* do not send the heartbeat frame if the subtitle is already ahead */
255 if (pts2 <= ist2->sub2video.last_pts)
257 if (pts2 >= ist2->sub2video.end_pts)
258 sub2video_update(ist2, NULL);
259 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
260 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
262 sub2video_push_ref(ist2, pts2);
266 static void sub2video_flush(InputStream *ist)
270 for (i = 0; i < ist->nb_filters; i++)
271 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
274 /* end of sub2video hack */
278 av_log(NULL, AV_LOG_QUIET, "%s", "");
281 tcsetattr (0, TCSANOW, &oldtty);
285 static volatile int received_sigterm = 0;
286 static volatile int received_nb_signals = 0;
289 sigterm_handler(int sig)
291 received_sigterm = sig;
292 received_nb_signals++;
294 if(received_nb_signals > 3)
305 istty = isatty(0) && isatty(2);
307 if (istty && tcgetattr (0, &tty) == 0) {
312 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
313 |INLCR|IGNCR|ICRNL|IXON);
314 tty.c_oflag |= OPOST;
315 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
316 tty.c_cflag &= ~(CSIZE|PARENB);
321 tcsetattr (0, TCSANOW, &tty);
323 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
326 avformat_network_deinit();
328 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
329 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
331 signal(SIGXCPU, sigterm_handler);
335 /* read a key without blocking */
336 static int read_key(void)
348 n = select(1, &rfds, NULL, NULL, &tv);
357 # if HAVE_PEEKNAMEDPIPE
359 static HANDLE input_handle;
362 input_handle = GetStdHandle(STD_INPUT_HANDLE);
363 is_pipe = !GetConsoleMode(input_handle, &dw);
366 if (stdin->_cnt > 0) {
371 /* When running under a GUI, you will end here. */
372 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
389 static int decode_interrupt_cb(void *ctx)
391 return received_nb_signals > 1;
394 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
396 static void exit_program(void)
400 for (i = 0; i < nb_filtergraphs; i++) {
401 avfilter_graph_free(&filtergraphs[i]->graph);
402 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
403 av_freep(&filtergraphs[i]->inputs[j]->name);
404 av_freep(&filtergraphs[i]->inputs[j]);
406 av_freep(&filtergraphs[i]->inputs);
407 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
408 av_freep(&filtergraphs[i]->outputs[j]->name);
409 av_freep(&filtergraphs[i]->outputs[j]);
411 av_freep(&filtergraphs[i]->outputs);
412 av_freep(&filtergraphs[i]);
414 av_freep(&filtergraphs);
416 av_freep(&subtitle_out);
419 for (i = 0; i < nb_output_files; i++) {
420 AVFormatContext *s = output_files[i]->ctx;
421 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
423 avformat_free_context(s);
424 av_dict_free(&output_files[i]->opts);
425 av_freep(&output_files[i]);
427 for (i = 0; i < nb_output_streams; i++) {
428 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
430 AVBitStreamFilterContext *next = bsfc->next;
431 av_bitstream_filter_close(bsfc);
434 output_streams[i]->bitstream_filters = NULL;
435 avcodec_free_frame(&output_streams[i]->filtered_frame);
437 av_freep(&output_streams[i]->forced_keyframes);
438 av_freep(&output_streams[i]->avfilter);
439 av_freep(&output_streams[i]->logfile_prefix);
440 av_freep(&output_streams[i]);
442 for (i = 0; i < nb_input_files; i++) {
443 avformat_close_input(&input_files[i]->ctx);
444 av_freep(&input_files[i]);
446 for (i = 0; i < nb_input_streams; i++) {
447 avcodec_free_frame(&input_streams[i]->decoded_frame);
448 av_dict_free(&input_streams[i]->opts);
449 free_buffer_pool(&input_streams[i]->buffer_pool);
450 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
451 av_freep(&input_streams[i]->filters);
452 av_freep(&input_streams[i]);
457 av_free(vstats_filename);
459 av_freep(&input_streams);
460 av_freep(&input_files);
461 av_freep(&output_streams);
462 av_freep(&output_files);
467 avformat_network_deinit();
469 if (received_sigterm) {
470 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
471 (int) received_sigterm);
476 void assert_avoptions(AVDictionary *m)
478 AVDictionaryEntry *t;
479 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
480 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
485 static void abort_codec_experimental(AVCodec *c, int encoder)
490 static void update_benchmark(const char *fmt, ...)
492 if (do_benchmark_all) {
493 int64_t t = getutime();
499 vsnprintf(buf, sizeof(buf), fmt, va);
501 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
507 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
509 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
510 AVCodecContext *avctx = ost->st->codec;
513 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
514 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
515 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
517 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
518 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
519 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
520 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
521 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
522 if(pkt->pts >= pkt->dts)
523 pkt->pts = FFMAX(pkt->pts, max);
529 * Audio encoders may split the packets -- #frames in != #packets out.
530 * But there is no reordering, so we can limit the number of output packets
531 * by simply dropping them here.
532 * Counting encoded video frames needs to be done separately because of
533 * reordering, see do_video_out()
535 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
536 if (ost->frame_number >= ost->max_frames) {
544 AVPacket new_pkt = *pkt;
545 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
546 &new_pkt.data, &new_pkt.size,
547 pkt->data, pkt->size,
548 pkt->flags & AV_PKT_FLAG_KEY);
549 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
550 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
552 memcpy(t, new_pkt.data, new_pkt.size);
553 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
561 new_pkt.destruct = av_destruct_packet;
563 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
564 bsfc->filter->name, pkt->stream_index,
565 avctx->codec ? avctx->codec->name : "copy");
575 pkt->stream_index = ost->index;
578 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
579 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
580 av_get_media_type_string(ost->st->codec->codec_type),
581 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
582 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
587 ret = av_interleaved_write_frame(s, pkt);
589 print_error("av_interleaved_write_frame()", ret);
594 static void close_output_stream(OutputStream *ost)
596 OutputFile *of = output_files[ost->file_index];
600 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
601 of->recording_time = FFMIN(of->recording_time, end);
605 static int check_recording_time(OutputStream *ost)
607 OutputFile *of = output_files[ost->file_index];
609 if (of->recording_time != INT64_MAX &&
610 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
611 AV_TIME_BASE_Q) >= 0) {
612 close_output_stream(ost);
618 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
621 AVCodecContext *enc = ost->st->codec;
625 av_init_packet(&pkt);
629 if (!check_recording_time(ost))
632 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
633 frame->pts = ost->sync_opts;
634 ost->sync_opts = frame->pts + frame->nb_samples;
636 av_assert0(pkt.size || !pkt.data);
637 update_benchmark(NULL);
638 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
639 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
642 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
645 if (pkt.pts != AV_NOPTS_VALUE)
646 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
647 if (pkt.dts != AV_NOPTS_VALUE)
648 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
649 if (pkt.duration > 0)
650 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
653 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
654 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
655 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
656 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
659 audio_size += pkt.size;
660 write_frame(s, &pkt, ost);
662 av_free_packet(&pkt);
666 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
670 AVPicture picture_tmp;
673 dec = ist->st->codec;
675 /* deinterlace : must be done before any resize */
676 if (do_deinterlace) {
679 /* create temporary picture */
680 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
683 buf = av_malloc(size);
687 picture2 = &picture_tmp;
688 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
690 if (avpicture_deinterlace(picture2, picture,
691 dec->pix_fmt, dec->width, dec->height) < 0) {
692 /* if error, do not deinterlace */
693 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
702 if (picture != picture2)
703 *picture = *picture2;
707 static void do_subtitle_out(AVFormatContext *s,
712 int subtitle_out_max_size = 1024 * 1024;
713 int subtitle_out_size, nb, i;
718 if (sub->pts == AV_NOPTS_VALUE) {
719 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
725 enc = ost->st->codec;
728 subtitle_out = av_malloc(subtitle_out_max_size);
731 /* Note: DVB subtitle need one packet to draw them and one other
732 packet to clear them */
733 /* XXX: signal it in the codec context ? */
734 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
739 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
740 pts = sub->pts - output_files[ost->file_index]->start_time;
741 for (i = 0; i < nb; i++) {
742 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
743 if (!check_recording_time(ost))
747 // start_display_time is required to be 0
748 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
749 sub->end_display_time -= sub->start_display_time;
750 sub->start_display_time = 0;
753 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
754 subtitle_out_max_size, sub);
755 if (subtitle_out_size < 0) {
756 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
760 av_init_packet(&pkt);
761 pkt.data = subtitle_out;
762 pkt.size = subtitle_out_size;
763 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
764 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
765 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
766 /* XXX: the pts correction is handled here. Maybe handling
767 it in the codec would be better */
769 pkt.pts += 90 * sub->start_display_time;
771 pkt.pts += 90 * sub->end_display_time;
773 subtitle_size += pkt.size;
774 write_frame(s, &pkt, ost);
778 static void do_video_out(AVFormatContext *s,
782 int ret, format_video_sync;
784 AVCodecContext *enc = ost->st->codec;
786 double sync_ipts, delta;
789 InputStream *ist = NULL;
791 if (ost->source_index >= 0)
792 ist = input_streams[ost->source_index];
794 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
795 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
797 sync_ipts = in_picture->pts;
798 delta = sync_ipts - ost->sync_opts + duration;
800 /* by default, we output a single frame */
803 format_video_sync = video_sync_method;
804 if (format_video_sync == VSYNC_AUTO)
805 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
807 switch (format_video_sync) {
809 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
812 else if (delta > 1.1)
813 nb_frames = lrintf(delta);
818 else if (delta > 0.6)
819 ost->sync_opts = lrint(sync_ipts);
822 case VSYNC_PASSTHROUGH:
823 ost->sync_opts = lrint(sync_ipts);
829 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
830 if (nb_frames == 0) {
832 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
834 } else if (nb_frames > 1) {
835 if (nb_frames > dts_error_threshold * 30) {
836 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
840 nb_frames_dup += nb_frames - 1;
841 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
844 /* duplicates frame if needed */
845 for (i = 0; i < nb_frames; i++) {
846 av_init_packet(&pkt);
850 in_picture->pts = ost->sync_opts;
852 if (!check_recording_time(ost))
855 if (s->oformat->flags & AVFMT_RAWPICTURE &&
856 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
857 /* raw pictures are written as AVPicture structure to
858 avoid any copies. We support temporarily the older
860 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
861 enc->coded_frame->top_field_first = in_picture->top_field_first;
862 if (enc->coded_frame->interlaced_frame)
863 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
865 enc->field_order = AV_FIELD_PROGRESSIVE;
866 pkt.data = (uint8_t *)in_picture;
867 pkt.size = sizeof(AVPicture);
868 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
869 pkt.flags |= AV_PKT_FLAG_KEY;
871 video_size += pkt.size;
872 write_frame(s, &pkt, ost);
877 big_picture = *in_picture;
878 /* better than nothing: use input picture interlaced
880 big_picture.interlaced_frame = in_picture->interlaced_frame;
881 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
882 if (ost->top_field_first == -1)
883 big_picture.top_field_first = in_picture->top_field_first;
885 big_picture.top_field_first = !!ost->top_field_first;
888 if (big_picture.interlaced_frame) {
889 if (enc->codec->id == AV_CODEC_ID_MJPEG)
890 enc->field_order = big_picture.top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
892 enc->field_order = big_picture.top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
894 enc->field_order = AV_FIELD_PROGRESSIVE;
896 big_picture.quality = ost->st->codec->global_quality;
897 if (!enc->me_threshold)
898 big_picture.pict_type = 0;
899 if (ost->forced_kf_index < ost->forced_kf_count &&
900 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
901 big_picture.pict_type = AV_PICTURE_TYPE_I;
902 ost->forced_kf_index++;
904 update_benchmark(NULL);
905 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
906 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
908 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
913 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
914 pkt.pts = ost->sync_opts;
916 if (pkt.pts != AV_NOPTS_VALUE)
917 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
918 if (pkt.dts != AV_NOPTS_VALUE)
919 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
922 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
923 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
924 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
925 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
928 frame_size = pkt.size;
929 video_size += pkt.size;
930 write_frame(s, &pkt, ost);
931 av_free_packet(&pkt);
933 /* if two pass, output log */
934 if (ost->logfile && enc->stats_out) {
935 fprintf(ost->logfile, "%s", enc->stats_out);
941 * For video, number of frames in == number of packets out.
942 * But there may be reordering, so we can't throw away frames on encoder
943 * flush, we need to limit them here, before they go into encoder.
948 if (vstats_filename && frame_size)
949 do_video_stats(ost, frame_size);
952 static double psnr(double d)
954 return -10.0 * log(d) / log(10.0);
957 static void do_video_stats(OutputStream *ost, int frame_size)
961 double ti1, bitrate, avg_bitrate;
963 /* this is executed just the first time do_video_stats is called */
965 vstats_file = fopen(vstats_filename, "w");
972 enc = ost->st->codec;
973 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
974 frame_number = ost->st->nb_frames;
975 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
976 if (enc->flags&CODEC_FLAG_PSNR)
977 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
979 fprintf(vstats_file,"f_size= %6d ", frame_size);
980 /* compute pts value */
981 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
985 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
986 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
987 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
988 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
989 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
994 * Get and encode new output from any of the filtergraphs, without causing
997 * @return 0 for success, <0 for severe errors
999 static int reap_filters(void)
1001 AVFilterBufferRef *picref;
1002 AVFrame *filtered_frame = NULL;
1006 /* Reap all buffers present in the buffer sinks */
1007 for (i = 0; i < nb_output_streams; i++) {
1008 OutputStream *ost = output_streams[i];
1009 OutputFile *of = output_files[ost->file_index];
1015 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1016 return AVERROR(ENOMEM);
1018 avcodec_get_frame_defaults(ost->filtered_frame);
1019 filtered_frame = ost->filtered_frame;
1022 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1023 AV_BUFFERSINK_FLAG_NO_REQUEST);
1025 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1027 av_strerror(ret, buf, sizeof(buf));
1028 av_log(NULL, AV_LOG_WARNING,
1029 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1033 frame_pts = AV_NOPTS_VALUE;
1034 if (picref->pts != AV_NOPTS_VALUE) {
1035 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1036 ost->filter->filter->inputs[0]->time_base,
1037 ost->st->codec->time_base) -
1038 av_rescale_q(of->start_time,
1040 ost->st->codec->time_base);
1042 if (of->start_time && filtered_frame->pts < 0) {
1043 avfilter_unref_buffer(picref);
1047 //if (ost->source_index >= 0)
1048 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1051 switch (ost->filter->filter->inputs[0]->type) {
1052 case AVMEDIA_TYPE_VIDEO:
1053 avfilter_copy_buf_props(filtered_frame, picref);
1054 filtered_frame->pts = frame_pts;
1055 if (!ost->frame_aspect_ratio)
1056 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1058 do_video_out(of->ctx, ost, filtered_frame);
1060 case AVMEDIA_TYPE_AUDIO:
1061 avfilter_copy_buf_props(filtered_frame, picref);
1062 filtered_frame->pts = frame_pts;
1063 do_audio_out(of->ctx, ost, filtered_frame);
1066 // TODO support subtitle filters
1070 avfilter_unref_buffer(picref);
1077 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1080 AVBPrint buf_script;
1082 AVFormatContext *oc;
1084 AVCodecContext *enc;
1085 int frame_number, vid, i;
1087 int64_t pts = INT64_MIN;
1088 static int64_t last_time = -1;
1089 static int qp_histogram[52];
1090 int hours, mins, secs, us;
1092 if (!print_stats && !is_last_report && !progress_avio)
1095 if (!is_last_report) {
1096 if (last_time == -1) {
1097 last_time = cur_time;
1100 if ((cur_time - last_time) < 500000)
1102 last_time = cur_time;
1106 oc = output_files[0]->ctx;
1108 total_size = avio_size(oc->pb);
1109 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1110 total_size = avio_tell(oc->pb);
1114 av_bprint_init(&buf_script, 0, 1);
1115 for (i = 0; i < nb_output_streams; i++) {
1117 ost = output_streams[i];
1118 enc = ost->st->codec;
1119 if (!ost->stream_copy && enc->coded_frame)
1120 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1121 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1122 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1123 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1124 ost->file_index, ost->index, q);
1126 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1127 float fps, t = (cur_time-timer_start) / 1000000.0;
1129 frame_number = ost->frame_number;
1130 fps = t > 1 ? frame_number / t : 0;
1131 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1132 frame_number, fps < 9.95, fps, q);
1133 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1134 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1135 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1136 ost->file_index, ost->index, q);
1138 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1142 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1144 for (j = 0; j < 32; j++)
1145 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1147 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1149 double error, error_sum = 0;
1150 double scale, scale_sum = 0;
1152 char type[3] = { 'Y','U','V' };
1153 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1154 for (j = 0; j < 3; j++) {
1155 if (is_last_report) {
1156 error = enc->error[j];
1157 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1159 error = enc->coded_frame->error[j];
1160 scale = enc->width * enc->height * 255.0 * 255.0;
1166 p = psnr(error / scale);
1167 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1168 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1169 ost->file_index, ost->index, type[i] | 32, p);
1171 p = psnr(error_sum / scale_sum);
1172 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1173 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1174 ost->file_index, ost->index, p);
1178 /* compute min output value */
1179 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1180 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1181 ost->st->time_base, AV_TIME_BASE_Q));
1184 secs = pts / AV_TIME_BASE;
1185 us = pts % AV_TIME_BASE;
1191 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1193 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1195 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1196 "size=%8.0fkB time=", total_size / 1024.0);
1197 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1198 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1199 (100 * us) / AV_TIME_BASE);
1200 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1202 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1203 "bitrate=%6.1fkbits/s", bitrate);
1204 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1205 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1206 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1207 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1208 hours, mins, secs, us);
1210 if (nb_frames_dup || nb_frames_drop)
1211 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1212 nb_frames_dup, nb_frames_drop);
1213 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1214 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1216 if (print_stats || is_last_report) {
1217 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1222 if (progress_avio) {
1223 av_bprintf(&buf_script, "progress=%s\n",
1224 is_last_report ? "end" : "continue");
1225 avio_write(progress_avio, buf_script.str,
1226 FFMIN(buf_script.len, buf_script.size - 1));
1227 avio_flush(progress_avio);
1228 av_bprint_finalize(&buf_script, NULL);
1229 if (is_last_report) {
1230 avio_close(progress_avio);
1231 progress_avio = NULL;
1235 if (is_last_report) {
1236 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1237 av_log(NULL, AV_LOG_INFO, "\n");
1238 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1239 video_size / 1024.0,
1240 audio_size / 1024.0,
1241 subtitle_size / 1024.0,
1242 extra_size / 1024.0,
1243 100.0 * (total_size - raw) / raw
1245 if(video_size + audio_size + subtitle_size + extra_size == 0){
1246 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1251 static void flush_encoders(void)
1255 for (i = 0; i < nb_output_streams; i++) {
1256 OutputStream *ost = output_streams[i];
1257 AVCodecContext *enc = ost->st->codec;
1258 AVFormatContext *os = output_files[ost->file_index]->ctx;
1259 int stop_encoding = 0;
1261 if (!ost->encoding_needed)
1264 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1266 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1270 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1274 switch (ost->st->codec->codec_type) {
1275 case AVMEDIA_TYPE_AUDIO:
1276 encode = avcodec_encode_audio2;
1280 case AVMEDIA_TYPE_VIDEO:
1281 encode = avcodec_encode_video2;
1292 av_init_packet(&pkt);
1296 update_benchmark(NULL);
1297 ret = encode(enc, &pkt, NULL, &got_packet);
1298 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1300 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1304 if (ost->logfile && enc->stats_out) {
1305 fprintf(ost->logfile, "%s", enc->stats_out);
1311 if (pkt.pts != AV_NOPTS_VALUE)
1312 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1313 if (pkt.dts != AV_NOPTS_VALUE)
1314 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1315 if (pkt.duration > 0)
1316 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1317 write_frame(os, &pkt, ost);
1318 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1319 do_video_stats(ost, pkt.size);
1330 * Check whether a packet from ist should be written into ost at this time
1332 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1334 OutputFile *of = output_files[ost->file_index];
1335 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1337 if (ost->source_index != ist_index)
1340 if (of->start_time && ist->pts < of->start_time)
1346 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1348 OutputFile *of = output_files[ost->file_index];
1349 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1353 av_init_packet(&opkt);
1355 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1356 !ost->copy_initial_nonkeyframes)
1359 if (!ost->frame_number && ist->pts < of->start_time &&
1360 !ost->copy_prior_start)
1363 if (of->recording_time != INT64_MAX &&
1364 ist->pts >= of->recording_time + of->start_time) {
1365 close_output_stream(ost);
1369 /* force the input stream PTS */
1370 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1371 audio_size += pkt->size;
1372 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1373 video_size += pkt->size;
1375 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1376 subtitle_size += pkt->size;
1379 if (pkt->pts != AV_NOPTS_VALUE)
1380 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1382 opkt.pts = AV_NOPTS_VALUE;
1384 if (pkt->dts == AV_NOPTS_VALUE)
1385 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1387 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1388 opkt.dts -= ost_tb_start_time;
1390 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1391 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1393 duration = ist->st->codec->frame_size;
1394 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1395 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1396 ost->st->time_base) - ost_tb_start_time;
1399 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1400 opkt.flags = pkt->flags;
1402 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1403 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1404 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1405 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1406 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1408 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1409 opkt.destruct = av_destruct_packet;
1411 opkt.data = pkt->data;
1412 opkt.size = pkt->size;
1415 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1416 /* store AVPicture in AVPacket, as expected by the output format */
1417 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1418 opkt.data = (uint8_t *)&pict;
1419 opkt.size = sizeof(AVPicture);
1420 opkt.flags |= AV_PKT_FLAG_KEY;
1423 write_frame(of->ctx, &opkt, ost);
1424 ost->st->codec->frame_number++;
1427 static void rate_emu_sleep(InputStream *ist)
1429 if (input_files[ist->file_index]->rate_emu) {
1430 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1431 int64_t now = av_gettime() - ist->start;
1433 av_usleep(pts - now);
1437 int guess_input_channel_layout(InputStream *ist)
1439 AVCodecContext *dec = ist->st->codec;
1441 if (!dec->channel_layout) {
1442 char layout_name[256];
1444 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1445 if (!dec->channel_layout)
1447 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1448 dec->channels, dec->channel_layout);
1449 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1450 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1455 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1457 AVFrame *decoded_frame;
1458 AVCodecContext *avctx = ist->st->codec;
1459 int i, ret, resample_changed;
1460 AVRational decoded_frame_tb;
1462 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1463 return AVERROR(ENOMEM);
1464 decoded_frame = ist->decoded_frame;
1466 update_benchmark(NULL);
1467 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1468 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1470 if (ret >= 0 && avctx->sample_rate <= 0) {
1471 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1472 ret = AVERROR_INVALIDDATA;
1475 if (!*got_output || ret < 0) {
1477 for (i = 0; i < ist->nb_filters; i++)
1478 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1484 /* increment next_dts to use for the case where the input stream does not
1485 have timestamps or there are multiple frames in the packet */
1486 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1488 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1492 rate_emu_sleep(ist);
1494 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1495 ist->resample_channels != avctx->channels ||
1496 ist->resample_channel_layout != decoded_frame->channel_layout ||
1497 ist->resample_sample_rate != decoded_frame->sample_rate;
1498 if (resample_changed) {
1499 char layout1[64], layout2[64];
1501 if (!guess_input_channel_layout(ist)) {
1502 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1503 "layout for Input Stream #%d.%d\n", ist->file_index,
1507 decoded_frame->channel_layout = avctx->channel_layout;
1509 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1510 ist->resample_channel_layout);
1511 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1512 decoded_frame->channel_layout);
1514 av_log(NULL, AV_LOG_INFO,
1515 "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",
1516 ist->file_index, ist->st->index,
1517 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1518 ist->resample_channels, layout1,
1519 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1520 avctx->channels, layout2);
1522 ist->resample_sample_fmt = decoded_frame->format;
1523 ist->resample_sample_rate = decoded_frame->sample_rate;
1524 ist->resample_channel_layout = decoded_frame->channel_layout;
1525 ist->resample_channels = avctx->channels;
1527 for (i = 0; i < nb_filtergraphs; i++)
1528 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1529 FilterGraph *fg = filtergraphs[i];
1531 if (configure_filtergraph(fg) < 0) {
1532 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1535 for (j = 0; j < fg->nb_outputs; j++) {
1536 OutputStream *ost = fg->outputs[j]->ost;
1537 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1538 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1539 av_buffersink_set_frame_size(ost->filter->filter,
1540 ost->st->codec->frame_size);
1545 /* if the decoder provides a pts, use it instead of the last packet pts.
1546 the decoder could be delaying output by a packet or more. */
1547 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1548 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1549 decoded_frame_tb = avctx->time_base;
1550 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1551 decoded_frame->pts = decoded_frame->pkt_pts;
1552 pkt->pts = AV_NOPTS_VALUE;
1553 decoded_frame_tb = ist->st->time_base;
1554 } else if (pkt->pts != AV_NOPTS_VALUE) {
1555 decoded_frame->pts = pkt->pts;
1556 pkt->pts = AV_NOPTS_VALUE;
1557 decoded_frame_tb = ist->st->time_base;
1559 decoded_frame->pts = ist->dts;
1560 decoded_frame_tb = AV_TIME_BASE_Q;
1562 if (decoded_frame->pts != AV_NOPTS_VALUE)
1563 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1564 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1565 (AVRational){1, ist->st->codec->sample_rate});
1566 for (i = 0; i < ist->nb_filters; i++)
1567 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1568 AV_BUFFERSRC_FLAG_PUSH);
1570 decoded_frame->pts = AV_NOPTS_VALUE;
1575 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1577 AVFrame *decoded_frame;
1578 void *buffer_to_free = NULL;
1579 int i, ret = 0, resample_changed;
1580 int64_t best_effort_timestamp;
1581 AVRational *frame_sample_aspect;
1583 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1584 return AVERROR(ENOMEM);
1585 decoded_frame = ist->decoded_frame;
1586 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1588 update_benchmark(NULL);
1589 ret = avcodec_decode_video2(ist->st->codec,
1590 decoded_frame, got_output, pkt);
1591 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1592 if (!*got_output || ret < 0) {
1594 for (i = 0; i < ist->nb_filters; i++)
1595 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1600 if(ist->top_field_first>=0)
1601 decoded_frame->top_field_first = ist->top_field_first;
1603 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1604 if(best_effort_timestamp != AV_NOPTS_VALUE)
1605 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1608 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1609 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1610 ist->st->index, av_ts2str(decoded_frame->pts),
1611 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1612 best_effort_timestamp,
1613 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1614 decoded_frame->key_frame, decoded_frame->pict_type);
1618 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1620 rate_emu_sleep(ist);
1622 if (ist->st->sample_aspect_ratio.num)
1623 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1625 resample_changed = ist->resample_width != decoded_frame->width ||
1626 ist->resample_height != decoded_frame->height ||
1627 ist->resample_pix_fmt != decoded_frame->format;
1628 if (resample_changed) {
1629 av_log(NULL, AV_LOG_INFO,
1630 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1631 ist->file_index, ist->st->index,
1632 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1633 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1635 ist->resample_width = decoded_frame->width;
1636 ist->resample_height = decoded_frame->height;
1637 ist->resample_pix_fmt = decoded_frame->format;
1639 for (i = 0; i < nb_filtergraphs; i++) {
1640 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1641 configure_filtergraph(filtergraphs[i]) < 0) {
1642 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1648 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1649 for (i = 0; i < ist->nb_filters; i++) {
1650 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1651 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1652 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1654 if (!frame_sample_aspect->num)
1655 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1656 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1657 FrameBuffer *buf = decoded_frame->opaque;
1658 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1659 decoded_frame->data, decoded_frame->linesize,
1660 AV_PERM_READ | AV_PERM_PRESERVE,
1661 ist->st->codec->width, ist->st->codec->height,
1662 ist->st->codec->pix_fmt);
1664 avfilter_copy_frame_props(fb, decoded_frame);
1665 fb->buf->priv = buf;
1666 fb->buf->free = filter_release_buffer;
1668 av_assert0(buf->refcount>0);
1670 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1671 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1672 AV_BUFFERSRC_FLAG_NO_COPY |
1673 AV_BUFFERSRC_FLAG_PUSH);
1675 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1676 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1682 av_free(buffer_to_free);
1686 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1688 AVSubtitle subtitle;
1689 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1690 &subtitle, got_output, pkt);
1691 if (ret < 0 || !*got_output) {
1693 sub2video_flush(ist);
1697 if (ist->fix_sub_duration) {
1698 if (ist->prev_sub.got_output) {
1699 int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1700 1000, AV_TIME_BASE);
1701 if (end < ist->prev_sub.subtitle.end_display_time) {
1702 av_log(ist->st->codec, AV_LOG_DEBUG,
1703 "Subtitle duration reduced from %d to %d\n",
1704 ist->prev_sub.subtitle.end_display_time, end);
1705 ist->prev_sub.subtitle.end_display_time = end;
1708 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1709 FFSWAP(int, ret, ist->prev_sub.ret);
1710 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1713 sub2video_update(ist, &subtitle);
1715 if (!*got_output || !subtitle.num_rects)
1718 rate_emu_sleep(ist);
1720 for (i = 0; i < nb_output_streams; i++) {
1721 OutputStream *ost = output_streams[i];
1723 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1726 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
1729 avsubtitle_free(&subtitle);
1733 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1734 static int output_packet(InputStream *ist, const AVPacket *pkt)
1740 if (!ist->saw_first_ts) {
1741 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;
1743 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1744 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1745 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1747 ist->saw_first_ts = 1;
1750 if (ist->next_dts == AV_NOPTS_VALUE)
1751 ist->next_dts = ist->dts;
1752 if (ist->next_pts == AV_NOPTS_VALUE)
1753 ist->next_pts = ist->pts;
1757 av_init_packet(&avpkt);
1765 if (pkt->dts != AV_NOPTS_VALUE) {
1766 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1767 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1768 ist->next_pts = ist->pts = ist->dts;
1771 // while we have more to decode or while the decoder did output something on EOF
1772 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1776 ist->pts = ist->next_pts;
1777 ist->dts = ist->next_dts;
1779 if (avpkt.size && avpkt.size != pkt->size) {
1780 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1781 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1782 ist->showed_multi_packet_warning = 1;
1785 switch (ist->st->codec->codec_type) {
1786 case AVMEDIA_TYPE_AUDIO:
1787 ret = decode_audio (ist, &avpkt, &got_output);
1789 case AVMEDIA_TYPE_VIDEO:
1790 ret = decode_video (ist, &avpkt, &got_output);
1791 if (avpkt.duration) {
1792 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1793 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1794 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1795 duration = ((int64_t)AV_TIME_BASE *
1796 ist->st->codec->time_base.num * ticks) /
1797 ist->st->codec->time_base.den;
1801 if(ist->dts != AV_NOPTS_VALUE && duration) {
1802 ist->next_dts += duration;
1804 ist->next_dts = AV_NOPTS_VALUE;
1807 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1809 case AVMEDIA_TYPE_SUBTITLE:
1810 ret = transcode_subtitles(ist, &avpkt, &got_output);
1820 avpkt.pts= AV_NOPTS_VALUE;
1822 // touch data and size only if not EOF
1824 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1834 /* handle stream copy */
1835 if (!ist->decoding_needed) {
1836 rate_emu_sleep(ist);
1837 ist->dts = ist->next_dts;
1838 switch (ist->st->codec->codec_type) {
1839 case AVMEDIA_TYPE_AUDIO:
1840 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1841 ist->st->codec->sample_rate;
1843 case AVMEDIA_TYPE_VIDEO:
1844 if (pkt->duration) {
1845 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1846 } else if(ist->st->codec->time_base.num != 0) {
1847 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1848 ist->next_dts += ((int64_t)AV_TIME_BASE *
1849 ist->st->codec->time_base.num * ticks) /
1850 ist->st->codec->time_base.den;
1854 ist->pts = ist->dts;
1855 ist->next_pts = ist->next_dts;
1857 for (i = 0; pkt && i < nb_output_streams; i++) {
1858 OutputStream *ost = output_streams[i];
1860 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1863 do_streamcopy(ist, ost, pkt);
1869 static void print_sdp(void)
1873 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1877 for (i = 0; i < nb_output_files; i++)
1878 avc[i] = output_files[i]->ctx;
1880 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1881 printf("SDP:\n%s\n", sdp);
1886 static int init_input_stream(int ist_index, char *error, int error_len)
1889 InputStream *ist = input_streams[ist_index];
1891 if (ist->decoding_needed) {
1892 AVCodec *codec = ist->dec;
1894 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1895 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1896 return AVERROR(EINVAL);
1899 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1900 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1901 ist->st->codec->get_buffer = codec_get_buffer;
1902 ist->st->codec->release_buffer = codec_release_buffer;
1903 ist->st->codec->opaque = &ist->buffer_pool;
1906 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1907 av_dict_set(&ist->opts, "threads", "auto", 0);
1908 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1909 if (ret == AVERROR_EXPERIMENTAL)
1910 abort_codec_experimental(codec, 0);
1911 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1912 ist->file_index, ist->st->index);
1915 assert_avoptions(ist->opts);
1918 ist->next_pts = AV_NOPTS_VALUE;
1919 ist->next_dts = AV_NOPTS_VALUE;
1925 static InputStream *get_input_stream(OutputStream *ost)
1927 if (ost->source_index >= 0)
1928 return input_streams[ost->source_index];
1932 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1933 AVCodecContext *avctx)
1939 for (p = kf; *p; p++)
1942 ost->forced_kf_count = n;
1943 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1944 if (!ost->forced_kf_pts) {
1945 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1950 for (i = 0; i < n; i++) {
1951 char *next = strchr(p, ',');
1956 t = parse_time_or_die("force_key_frames", p, 1);
1957 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1963 static void report_new_stream(int input_index, AVPacket *pkt)
1965 InputFile *file = input_files[input_index];
1966 AVStream *st = file->ctx->streams[pkt->stream_index];
1968 if (pkt->stream_index < file->nb_streams_warn)
1970 av_log(file->ctx, AV_LOG_WARNING,
1971 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1972 av_get_media_type_string(st->codec->codec_type),
1973 input_index, pkt->stream_index,
1974 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1975 file->nb_streams_warn = pkt->stream_index + 1;
1978 static int transcode_init(void)
1980 int ret = 0, i, j, k;
1981 AVFormatContext *oc;
1982 AVCodecContext *codec;
1988 /* init framerate emulation */
1989 for (i = 0; i < nb_input_files; i++) {
1990 InputFile *ifile = input_files[i];
1991 if (ifile->rate_emu)
1992 for (j = 0; j < ifile->nb_streams; j++)
1993 input_streams[j + ifile->ist_index]->start = av_gettime();
1996 /* output stream init */
1997 for (i = 0; i < nb_output_files; i++) {
1998 oc = output_files[i]->ctx;
1999 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2000 av_dump_format(oc, i, oc->filename, 1);
2001 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2002 return AVERROR(EINVAL);
2006 /* init complex filtergraphs */
2007 for (i = 0; i < nb_filtergraphs; i++)
2008 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2011 /* for each output stream, we compute the right encoding parameters */
2012 for (i = 0; i < nb_output_streams; i++) {
2013 AVCodecContext *icodec = NULL;
2014 ost = output_streams[i];
2015 oc = output_files[ost->file_index]->ctx;
2016 ist = get_input_stream(ost);
2018 if (ost->attachment_filename)
2021 codec = ost->st->codec;
2024 icodec = ist->st->codec;
2026 ost->st->disposition = ist->st->disposition;
2027 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2028 codec->chroma_sample_location = icodec->chroma_sample_location;
2031 if (ost->stream_copy) {
2032 uint64_t extra_size;
2034 av_assert0(ist && !ost->filter);
2036 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2038 if (extra_size > INT_MAX) {
2039 return AVERROR(EINVAL);
2042 /* if stream_copy is selected, no need to decode or encode */
2043 codec->codec_id = icodec->codec_id;
2044 codec->codec_type = icodec->codec_type;
2046 if (!codec->codec_tag) {
2047 if (!oc->oformat->codec_tag ||
2048 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2049 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2050 codec->codec_tag = icodec->codec_tag;
2053 codec->bit_rate = icodec->bit_rate;
2054 codec->rc_max_rate = icodec->rc_max_rate;
2055 codec->rc_buffer_size = icodec->rc_buffer_size;
2056 codec->field_order = icodec->field_order;
2057 codec->extradata = av_mallocz(extra_size);
2058 if (!codec->extradata) {
2059 return AVERROR(ENOMEM);
2061 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2062 codec->extradata_size= icodec->extradata_size;
2063 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2065 codec->time_base = ist->st->time_base;
2067 * Avi is a special case here because it supports variable fps but
2068 * having the fps and timebase differe significantly adds quite some
2071 if(!strcmp(oc->oformat->name, "avi")) {
2072 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2073 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2074 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2075 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2077 codec->time_base.num = ist->st->r_frame_rate.den;
2078 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2079 codec->ticks_per_frame = 2;
2080 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2081 && av_q2d(ist->st->time_base) < 1.0/500
2083 codec->time_base = icodec->time_base;
2084 codec->time_base.num *= icodec->ticks_per_frame;
2085 codec->time_base.den *= 2;
2086 codec->ticks_per_frame = 2;
2088 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2089 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2090 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2091 && strcmp(oc->oformat->name, "f4v")
2093 if( copy_tb<0 && icodec->time_base.den
2094 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2095 && av_q2d(ist->st->time_base) < 1.0/500
2097 codec->time_base = icodec->time_base;
2098 codec->time_base.num *= icodec->ticks_per_frame;
2102 if(ost->frame_rate.num)
2103 codec->time_base = av_inv_q(ost->frame_rate);
2105 av_reduce(&codec->time_base.num, &codec->time_base.den,
2106 codec->time_base.num, codec->time_base.den, INT_MAX);
2108 switch (codec->codec_type) {
2109 case AVMEDIA_TYPE_AUDIO:
2110 if (audio_volume != 256) {
2111 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2114 codec->channel_layout = icodec->channel_layout;
2115 codec->sample_rate = icodec->sample_rate;
2116 codec->channels = icodec->channels;
2117 codec->frame_size = icodec->frame_size;
2118 codec->audio_service_type = icodec->audio_service_type;
2119 codec->block_align = icodec->block_align;
2120 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2121 codec->block_align= 0;
2122 if(codec->codec_id == AV_CODEC_ID_AC3)
2123 codec->block_align= 0;
2125 case AVMEDIA_TYPE_VIDEO:
2126 codec->pix_fmt = icodec->pix_fmt;
2127 codec->width = icodec->width;
2128 codec->height = icodec->height;
2129 codec->has_b_frames = icodec->has_b_frames;
2130 if (!codec->sample_aspect_ratio.num) {
2131 codec->sample_aspect_ratio =
2132 ost->st->sample_aspect_ratio =
2133 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2134 ist->st->codec->sample_aspect_ratio.num ?
2135 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2137 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2139 case AVMEDIA_TYPE_SUBTITLE:
2140 codec->width = icodec->width;
2141 codec->height = icodec->height;
2143 case AVMEDIA_TYPE_DATA:
2144 case AVMEDIA_TYPE_ATTACHMENT:
2151 ost->enc = avcodec_find_encoder(codec->codec_id);
2153 /* should only happen when a default codec is not present. */
2154 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2155 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2156 ret = AVERROR(EINVAL);
2161 ist->decoding_needed++;
2162 ost->encoding_needed = 1;
2165 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2166 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2168 fg = init_simple_filtergraph(ist, ost);
2169 if (configure_filtergraph(fg)) {
2170 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2175 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2176 if (ost->filter && !ost->frame_rate.num)
2177 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2178 if (ist && !ost->frame_rate.num)
2179 ost->frame_rate = ist->framerate;
2180 if (ist && !ost->frame_rate.num)
2181 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2182 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2183 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2184 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2185 ost->frame_rate = ost->enc->supported_framerates[idx];
2189 switch (codec->codec_type) {
2190 case AVMEDIA_TYPE_AUDIO:
2191 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2192 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2193 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2194 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2195 codec->time_base = (AVRational){ 1, codec->sample_rate };
2197 case AVMEDIA_TYPE_VIDEO:
2198 codec->time_base = av_inv_q(ost->frame_rate);
2199 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2200 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2201 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2202 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2203 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2204 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2206 for (j = 0; j < ost->forced_kf_count; j++)
2207 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2211 codec->width = ost->filter->filter->inputs[0]->w;
2212 codec->height = ost->filter->filter->inputs[0]->h;
2213 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2214 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2215 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2216 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2217 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2220 codec->width != icodec->width ||
2221 codec->height != icodec->height ||
2222 codec->pix_fmt != icodec->pix_fmt) {
2223 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2226 if (ost->forced_keyframes)
2227 parse_forced_key_frames(ost->forced_keyframes, ost,
2230 case AVMEDIA_TYPE_SUBTITLE:
2231 codec->time_base = (AVRational){1, 1000};
2232 if (!codec->width) {
2233 codec->width = input_streams[ost->source_index]->st->codec->width;
2234 codec->height = input_streams[ost->source_index]->st->codec->height;
2242 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2243 char logfilename[1024];
2246 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2247 ost->logfile_prefix ? ost->logfile_prefix :
2248 DEFAULT_PASS_LOGFILENAME_PREFIX,
2250 if (!strcmp(ost->enc->name, "libx264")) {
2251 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2253 if (codec->flags & CODEC_FLAG_PASS2) {
2255 size_t logbuffer_size;
2256 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2257 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2261 codec->stats_in = logbuffer;
2263 if (codec->flags & CODEC_FLAG_PASS1) {
2264 f = fopen(logfilename, "wb");
2266 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2267 logfilename, strerror(errno));
2277 /* open each encoder */
2278 for (i = 0; i < nb_output_streams; i++) {
2279 ost = output_streams[i];
2280 if (ost->encoding_needed) {
2281 AVCodec *codec = ost->enc;
2282 AVCodecContext *dec = NULL;
2284 if ((ist = get_input_stream(ost)))
2285 dec = ist->st->codec;
2286 if (dec && dec->subtitle_header) {
2287 /* ASS code assumes this buffer is null terminated so add extra byte. */
2288 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2289 if (!ost->st->codec->subtitle_header) {
2290 ret = AVERROR(ENOMEM);
2293 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2294 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2296 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2297 av_dict_set(&ost->opts, "threads", "auto", 0);
2298 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2299 if (ret == AVERROR_EXPERIMENTAL)
2300 abort_codec_experimental(codec, 1);
2301 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2302 ost->file_index, ost->index);
2305 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2306 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2307 av_buffersink_set_frame_size(ost->filter->filter,
2308 ost->st->codec->frame_size);
2309 assert_avoptions(ost->opts);
2310 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2311 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2312 " It takes bits/s as argument, not kbits/s\n");
2313 extra_size += ost->st->codec->extradata_size;
2315 if (ost->st->codec->me_threshold)
2316 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2320 /* init input streams */
2321 for (i = 0; i < nb_input_streams; i++)
2322 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2325 /* discard unused programs */
2326 for (i = 0; i < nb_input_files; i++) {
2327 InputFile *ifile = input_files[i];
2328 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2329 AVProgram *p = ifile->ctx->programs[j];
2330 int discard = AVDISCARD_ALL;
2332 for (k = 0; k < p->nb_stream_indexes; k++)
2333 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2334 discard = AVDISCARD_DEFAULT;
2337 p->discard = discard;
2341 /* open files and write file headers */
2342 for (i = 0; i < nb_output_files; i++) {
2343 oc = output_files[i]->ctx;
2344 oc->interrupt_callback = int_cb;
2345 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2347 const char *errbuf_ptr = errbuf;
2348 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2349 errbuf_ptr = strerror(AVUNERROR(ret));
2350 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2351 ret = AVERROR(EINVAL);
2354 // assert_avoptions(output_files[i]->opts);
2355 if (strcmp(oc->oformat->name, "rtp")) {
2361 /* dump the file output parameters - cannot be done before in case
2363 for (i = 0; i < nb_output_files; i++) {
2364 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2367 /* dump the stream mapping */
2368 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2369 for (i = 0; i < nb_input_streams; i++) {
2370 ist = input_streams[i];
2372 for (j = 0; j < ist->nb_filters; j++) {
2373 if (ist->filters[j]->graph->graph_desc) {
2374 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2375 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2376 ist->filters[j]->name);
2377 if (nb_filtergraphs > 1)
2378 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2379 av_log(NULL, AV_LOG_INFO, "\n");
2384 for (i = 0; i < nb_output_streams; i++) {
2385 ost = output_streams[i];
2387 if (ost->attachment_filename) {
2388 /* an attached file */
2389 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2390 ost->attachment_filename, ost->file_index, ost->index);
2394 if (ost->filter && ost->filter->graph->graph_desc) {
2395 /* output from a complex graph */
2396 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2397 if (nb_filtergraphs > 1)
2398 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2400 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2401 ost->index, ost->enc ? ost->enc->name : "?");
2405 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2406 input_streams[ost->source_index]->file_index,
2407 input_streams[ost->source_index]->st->index,
2410 if (ost->sync_ist != input_streams[ost->source_index])
2411 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2412 ost->sync_ist->file_index,
2413 ost->sync_ist->st->index);
2414 if (ost->stream_copy)
2415 av_log(NULL, AV_LOG_INFO, " (copy)");
2417 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2418 input_streams[ost->source_index]->dec->name : "?",
2419 ost->enc ? ost->enc->name : "?");
2420 av_log(NULL, AV_LOG_INFO, "\n");
2424 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2435 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2436 static int need_output(void)
2440 for (i = 0; i < nb_output_streams; i++) {
2441 OutputStream *ost = output_streams[i];
2442 OutputFile *of = output_files[ost->file_index];
2443 AVFormatContext *os = output_files[ost->file_index]->ctx;
2445 if (ost->finished ||
2446 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2448 if (ost->frame_number >= ost->max_frames) {
2450 for (j = 0; j < of->ctx->nb_streams; j++)
2451 close_output_stream(output_streams[of->ost_index + j]);
2462 * Select the output stream to process.
2464 * @return selected output stream, or NULL if none available
2466 static OutputStream *choose_output(void)
2469 int64_t opts_min = INT64_MAX;
2470 OutputStream *ost_min = NULL;
2472 for (i = 0; i < nb_output_streams; i++) {
2473 OutputStream *ost = output_streams[i];
2474 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2476 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2484 static int check_keyboard_interaction(int64_t cur_time)
2487 static int64_t last_time;
2488 if (received_nb_signals)
2489 return AVERROR_EXIT;
2490 /* read_key() returns 0 on EOF */
2491 if(cur_time - last_time >= 100000 && !run_as_daemon){
2493 last_time = cur_time;
2497 return AVERROR_EXIT;
2498 if (key == '+') av_log_set_level(av_log_get_level()+10);
2499 if (key == '-') av_log_set_level(av_log_get_level()-10);
2500 if (key == 's') qp_hist ^= 1;
2503 do_hex_dump = do_pkt_dump = 0;
2504 } else if(do_pkt_dump){
2508 av_log_set_level(AV_LOG_DEBUG);
2510 if (key == 'c' || key == 'C'){
2511 char buf[4096], target[64], command[256], arg[256] = {0};
2514 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2516 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2521 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2522 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2523 target, time, command, arg);
2524 for (i = 0; i < nb_filtergraphs; i++) {
2525 FilterGraph *fg = filtergraphs[i];
2528 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2529 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2530 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2532 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2537 av_log(NULL, AV_LOG_ERROR,
2538 "Parse error, at least 3 arguments were expected, "
2539 "only %d given in string '%s'\n", n, buf);
2542 if (key == 'd' || key == 'D'){
2545 debug = input_streams[0]->st->codec->debug<<1;
2546 if(!debug) debug = 1;
2547 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2550 if(scanf("%d", &debug)!=1)
2551 fprintf(stderr,"error parsing debug value\n");
2552 for(i=0;i<nb_input_streams;i++) {
2553 input_streams[i]->st->codec->debug = debug;
2555 for(i=0;i<nb_output_streams;i++) {
2556 OutputStream *ost = output_streams[i];
2557 ost->st->codec->debug = debug;
2559 if(debug) av_log_set_level(AV_LOG_DEBUG);
2560 fprintf(stderr,"debug=%d\n", debug);
2563 fprintf(stderr, "key function\n"
2564 "? show this help\n"
2565 "+ increase verbosity\n"
2566 "- decrease verbosity\n"
2567 "c Send command to filtergraph\n"
2568 "D cycle through available debug modes\n"
2569 "h dump packets/hex press to cycle through the 3 states\n"
2571 "s Show QP histogram\n"
2578 static void *input_thread(void *arg)
2583 while (!transcoding_finished && ret >= 0) {
2585 ret = av_read_frame(f->ctx, &pkt);
2587 if (ret == AVERROR(EAGAIN)) {
2594 pthread_mutex_lock(&f->fifo_lock);
2595 while (!av_fifo_space(f->fifo))
2596 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2598 av_dup_packet(&pkt);
2599 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2601 pthread_mutex_unlock(&f->fifo_lock);
2608 static void free_input_threads(void)
2612 if (nb_input_files == 1)
2615 transcoding_finished = 1;
2617 for (i = 0; i < nb_input_files; i++) {
2618 InputFile *f = input_files[i];
2621 if (!f->fifo || f->joined)
2624 pthread_mutex_lock(&f->fifo_lock);
2625 while (av_fifo_size(f->fifo)) {
2626 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2627 av_free_packet(&pkt);
2629 pthread_cond_signal(&f->fifo_cond);
2630 pthread_mutex_unlock(&f->fifo_lock);
2632 pthread_join(f->thread, NULL);
2635 while (av_fifo_size(f->fifo)) {
2636 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2637 av_free_packet(&pkt);
2639 av_fifo_free(f->fifo);
2643 static int init_input_threads(void)
2647 if (nb_input_files == 1)
2650 for (i = 0; i < nb_input_files; i++) {
2651 InputFile *f = input_files[i];
2653 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2654 return AVERROR(ENOMEM);
2656 pthread_mutex_init(&f->fifo_lock, NULL);
2657 pthread_cond_init (&f->fifo_cond, NULL);
2659 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2660 return AVERROR(ret);
2665 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2669 pthread_mutex_lock(&f->fifo_lock);
2671 if (av_fifo_size(f->fifo)) {
2672 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2673 pthread_cond_signal(&f->fifo_cond);
2678 ret = AVERROR(EAGAIN);
2681 pthread_mutex_unlock(&f->fifo_lock);
2687 static int get_input_packet(InputFile *f, AVPacket *pkt)
2690 if (nb_input_files > 1)
2691 return get_input_packet_mt(f, pkt);
2693 return av_read_frame(f->ctx, pkt);
2696 static int got_eagain(void)
2699 for (i = 0; i < nb_output_streams; i++)
2700 if (output_streams[i]->unavailable)
2705 static void reset_eagain(void)
2708 for (i = 0; i < nb_input_files; i++)
2709 input_files[i]->eagain = 0;
2710 for (i = 0; i < nb_output_streams; i++)
2711 output_streams[i]->unavailable = 0;
2716 * - 0 -- one packet was read and processed
2717 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2718 * this function should be called again
2719 * - AVERROR_EOF -- this function should not be called again
2721 static int process_input(int file_index)
2723 InputFile *ifile = input_files[file_index];
2724 AVFormatContext *is;
2730 ret = get_input_packet(ifile, &pkt);
2732 if (ret == AVERROR(EAGAIN)) {
2737 if (ret != AVERROR_EOF) {
2738 print_error(is->filename, ret);
2742 ifile->eof_reached = 1;
2744 for (i = 0; i < ifile->nb_streams; i++) {
2745 ist = input_streams[ifile->ist_index + i];
2746 if (ist->decoding_needed)
2747 output_packet(ist, NULL);
2749 /* mark all outputs that don't go through lavfi as finished */
2750 for (j = 0; j < nb_output_streams; j++) {
2751 OutputStream *ost = output_streams[j];
2753 if (ost->source_index == ifile->ist_index + i &&
2754 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2755 close_output_stream(ost);
2759 return AVERROR(EAGAIN);
2765 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2766 is->streams[pkt.stream_index]);
2768 /* the following test is needed in case new streams appear
2769 dynamically in stream : we ignore them */
2770 if (pkt.stream_index >= ifile->nb_streams) {
2771 report_new_stream(file_index, &pkt);
2772 goto discard_packet;
2775 ist = input_streams[ifile->ist_index + pkt.stream_index];
2777 goto discard_packet;
2780 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2781 "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",
2782 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2783 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2784 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2785 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2786 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2787 av_ts2str(input_files[ist->file_index]->ts_offset),
2788 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2791 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2792 int64_t stime, stime2;
2793 // Correcting starttime based on the enabled streams
2794 // 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.
2795 // so we instead do it here as part of discontinuity handling
2796 if ( ist->next_dts == AV_NOPTS_VALUE
2797 && ifile->ts_offset == -is->start_time
2798 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2799 int64_t new_start_time = INT64_MAX;
2800 for (i=0; i<is->nb_streams; i++) {
2801 AVStream *st = is->streams[i];
2802 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
2804 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
2806 if (new_start_time > is->start_time) {
2807 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
2808 ifile->ts_offset = -new_start_time;
2812 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2813 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2814 ist->wrap_correction_done = 1;
2816 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2817 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2818 ist->wrap_correction_done = 0;
2820 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2821 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2822 ist->wrap_correction_done = 0;
2826 if (pkt.dts != AV_NOPTS_VALUE)
2827 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2828 if (pkt.pts != AV_NOPTS_VALUE)
2829 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2831 if (pkt.pts != AV_NOPTS_VALUE)
2832 pkt.pts *= ist->ts_scale;
2833 if (pkt.dts != AV_NOPTS_VALUE)
2834 pkt.dts *= ist->ts_scale;
2836 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2838 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2839 int64_t delta = pkt_dts - ist->next_dts;
2840 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2841 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2842 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2843 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2844 pkt_dts+1<ist->pts){
2845 ifile->ts_offset -= delta;
2846 av_log(NULL, AV_LOG_DEBUG,
2847 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2848 delta, ifile->ts_offset);
2849 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2850 if (pkt.pts != AV_NOPTS_VALUE)
2851 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2854 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2855 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2857 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2858 pkt.dts = AV_NOPTS_VALUE;
2860 if (pkt.pts != AV_NOPTS_VALUE){
2861 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2862 delta = pkt_pts - ist->next_dts;
2863 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2864 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2866 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2867 pkt.pts = AV_NOPTS_VALUE;
2874 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",
2875 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2876 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2877 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2878 av_ts2str(input_files[ist->file_index]->ts_offset),
2879 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
2882 sub2video_heartbeat(ist, pkt.pts);
2884 ret = output_packet(ist, &pkt);
2887 av_strerror(ret, buf, sizeof(buf));
2888 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2889 ist->file_index, ist->st->index, buf);
2895 av_free_packet(&pkt);
2901 * Perform a step of transcoding for the specified filter graph.
2903 * @param[in] graph filter graph to consider
2904 * @param[out] best_ist input stream where a frame would allow to continue
2905 * @return 0 for success, <0 for error
2907 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2910 int nb_requests, nb_requests_max = 0;
2911 InputFilter *ifilter;
2915 ret = avfilter_graph_request_oldest(graph->graph);
2917 return reap_filters();
2919 if (ret == AVERROR_EOF) {
2920 ret = reap_filters();
2921 for (i = 0; i < graph->nb_outputs; i++)
2922 close_output_stream(graph->outputs[i]->ost);
2925 if (ret != AVERROR(EAGAIN))
2928 for (i = 0; i < graph->nb_inputs; i++) {
2929 ifilter = graph->inputs[i];
2931 if (input_files[ist->file_index]->eagain ||
2932 input_files[ist->file_index]->eof_reached)
2934 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2935 if (nb_requests > nb_requests_max) {
2936 nb_requests_max = nb_requests;
2942 for (i = 0; i < graph->nb_outputs; i++)
2943 graph->outputs[i]->ost->unavailable = 1;
2949 * Run a single step of transcoding.
2951 * @return 0 for success, <0 for error
2953 static int transcode_step(void)
2959 ost = choose_output();
2966 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2971 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2976 av_assert0(ost->source_index >= 0);
2977 ist = input_streams[ost->source_index];
2980 ret = process_input(ist->file_index);
2981 if (ret == AVERROR(EAGAIN)) {
2982 if (input_files[ist->file_index]->eagain)
2983 ost->unavailable = 1;
2987 return ret == AVERROR_EOF ? 0 : ret;
2989 return reap_filters();
2993 * The following code is the main loop of the file converter
2995 static int transcode(void)
2998 AVFormatContext *os;
3001 int64_t timer_start;
3003 ret = transcode_init();
3007 if (stdin_interaction) {
3008 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3011 timer_start = av_gettime();
3014 if ((ret = init_input_threads()) < 0)
3018 while (!received_sigterm) {
3019 int64_t cur_time= av_gettime();
3021 /* if 'q' pressed, exits */
3022 if (stdin_interaction)
3023 if (check_keyboard_interaction(cur_time) < 0)
3026 /* check if there's any stream where output is still needed */
3027 if (!need_output()) {
3028 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3032 ret = transcode_step();
3034 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3037 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3041 /* dump report by using the output first video and audio streams */
3042 print_report(0, timer_start, cur_time);
3045 free_input_threads();
3048 /* at the end of stream, we must flush the decoder buffers */
3049 for (i = 0; i < nb_input_streams; i++) {
3050 ist = input_streams[i];
3051 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3052 output_packet(ist, NULL);
3059 /* write the trailer if needed and close file */
3060 for (i = 0; i < nb_output_files; i++) {
3061 os = output_files[i]->ctx;
3062 av_write_trailer(os);
3065 /* dump report by using the first video and audio streams */
3066 print_report(1, timer_start, av_gettime());
3068 /* close each encoder */
3069 for (i = 0; i < nb_output_streams; i++) {
3070 ost = output_streams[i];
3071 if (ost->encoding_needed) {
3072 av_freep(&ost->st->codec->stats_in);
3073 avcodec_close(ost->st->codec);
3077 /* close each decoder */
3078 for (i = 0; i < nb_input_streams; i++) {
3079 ist = input_streams[i];
3080 if (ist->decoding_needed) {
3081 avcodec_close(ist->st->codec);
3090 free_input_threads();
3093 if (output_streams) {
3094 for (i = 0; i < nb_output_streams; i++) {
3095 ost = output_streams[i];
3097 if (ost->stream_copy)
3098 av_freep(&ost->st->codec->extradata);
3100 fclose(ost->logfile);
3101 ost->logfile = NULL;
3103 av_freep(&ost->st->codec->subtitle_header);
3104 av_free(ost->forced_kf_pts);
3105 av_dict_free(&ost->opts);
3113 static int64_t getutime(void)
3116 struct rusage rusage;
3118 getrusage(RUSAGE_SELF, &rusage);
3119 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3120 #elif HAVE_GETPROCESSTIMES
3122 FILETIME c, e, k, u;
3123 proc = GetCurrentProcess();
3124 GetProcessTimes(proc, &c, &e, &k, &u);
3125 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3127 return av_gettime();
3131 static int64_t getmaxrss(void)
3133 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3134 struct rusage rusage;
3135 getrusage(RUSAGE_SELF, &rusage);
3136 return (int64_t)rusage.ru_maxrss * 1024;
3137 #elif HAVE_GETPROCESSMEMORYINFO
3139 PROCESS_MEMORY_COUNTERS memcounters;
3140 proc = GetCurrentProcess();
3141 memcounters.cb = sizeof(memcounters);
3142 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3143 return memcounters.PeakPagefileUsage;
3149 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3153 int main(int argc, char **argv)
3158 atexit(exit_program);
3160 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3162 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3163 parse_loglevel(argc, argv, options);
3165 if(argc>1 && !strcmp(argv[1], "-d")){
3167 av_log_set_callback(log_callback_null);
3172 avcodec_register_all();
3174 avdevice_register_all();
3176 avfilter_register_all();
3178 avformat_network_init();
3180 show_banner(argc, argv, options);
3184 /* parse options and open all input/output files */
3185 ret = ffmpeg_parse_options(argc, argv);
3189 if (nb_output_files <= 0 && nb_input_files == 0) {
3191 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3195 /* file converter / grab */
3196 if (nb_output_files <= 0) {
3197 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3201 // if (nb_input_files == 0) {
3202 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3206 current_time = ti = getutime();
3207 if (transcode() < 0)
3209 ti = getutime() - ti;
3211 int maxrss = getmaxrss() / 1024;
3212 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);