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
36 #include "libavformat/avformat.h"
37 #include "libavdevice/avdevice.h"
38 #include "libswscale/swscale.h"
39 #include "libswresample/swresample.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/audioconvert.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/samplefmt.h"
44 #include "libavutil/colorspace.h"
45 #include "libavutil/fifo.h"
46 #include "libavutil/intreadwrite.h"
47 #include "libavutil/dict.h"
48 #include "libavutil/mathematics.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/avstring.h"
51 #include "libavutil/libm.h"
52 #include "libavutil/imgutils.h"
53 #include "libavutil/timestamp.h"
54 #include "libavutil/bprint.h"
55 #include "libavutil/time.h"
56 #include "libavformat/os_support.h"
58 #include "libavformat/ffm.h" // not public API
60 # include "libavfilter/avcodec.h"
61 # include "libavfilter/avfilter.h"
62 # include "libavfilter/avfiltergraph.h"
63 # include "libavfilter/buffersrc.h"
64 # include "libavfilter/buffersink.h"
66 #if HAVE_SYS_RESOURCE_H
67 #include <sys/types.h>
68 #include <sys/resource.h>
69 #elif HAVE_GETPROCESSTIMES
72 #if HAVE_GETPROCESSMEMORYINFO
78 #include <sys/select.h>
83 #include <sys/ioctl.h>
99 #include "libavutil/avassert.h"
101 const char program_name[] = "ffmpeg";
102 const int program_birth_year = 2000;
104 static FILE *vstats_file;
106 static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size);
107 static int64_t getutime(void);
109 static int run_as_daemon = 0;
110 static int64_t video_size = 0;
111 static int64_t audio_size = 0;
112 static int64_t subtitle_size = 0;
113 static int64_t extra_size = 0;
114 static int nb_frames_dup = 0;
115 static int nb_frames_drop = 0;
117 static int current_time;
118 AVIOContext *progress_avio = NULL;
120 static uint8_t *subtitle_out;
123 /* signal to input threads that they should exit; set by the main thread */
124 static int transcoding_finished;
127 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
129 InputStream **input_streams = NULL;
130 int nb_input_streams = 0;
131 InputFile **input_files = NULL;
132 int nb_input_files = 0;
134 OutputStream **output_streams = NULL;
135 int nb_output_streams = 0;
136 OutputFile **output_files = NULL;
137 int nb_output_files = 0;
139 FilterGraph **filtergraphs;
144 /* init terminal so that we can grab keys */
145 static struct termios oldtty;
146 static int restore_tty;
151 Convert subtitles to video with alpha to insert them in filter graphs.
152 This is a temporary solution until libavfilter gets real subtitles support.
157 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
160 uint32_t *pal, *dst2;
164 if (r->type != SUBTITLE_BITMAP) {
165 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
168 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
169 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
173 dst += r->y * dst_linesize + r->x * 4;
174 src = r->pict.data[0];
175 pal = (uint32_t *)r->pict.data[1];
176 for (y = 0; y < r->h; y++) {
177 dst2 = (uint32_t *)dst;
179 for (x = 0; x < r->w; x++)
180 *(dst2++) = pal[*(src2++)];
182 src += r->pict.linesize[0];
186 static void sub2video_push_ref(InputStream *ist, int64_t pts)
188 AVFilterBufferRef *ref = ist->sub2video.ref;
191 ist->sub2video.last_pts = ref->pts = pts;
192 for (i = 0; i < ist->nb_filters; i++)
193 av_buffersrc_add_ref(ist->filters[i]->filter,
194 avfilter_ref_buffer(ref, ~0),
195 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
196 AV_BUFFERSRC_FLAG_NO_COPY |
197 AV_BUFFERSRC_FLAG_PUSH);
200 static void sub2video_update(InputStream *ist, AVSubtitle *sub, int64_t pts)
202 int w = ist->sub2video.w, h = ist->sub2video.h;
203 AVFilterBufferRef *ref = ist->sub2video.ref;
211 dst_linesize = ref->linesize[0];
212 memset(dst, 0, h * dst_linesize);
213 for (i = 0; i < sub->num_rects; i++)
214 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
215 sub2video_push_ref(ist, pts);
218 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
220 InputFile *infile = input_files[ist->file_index];
224 /* When a frame is read from a file, examine all sub2video streams in
225 the same file and send the sub2video frame again. Otherwise, decoded
226 video frames could be accumulating in the filter graph while a filter
227 (possibly overlay) is desperately waiting for a subtitle frame. */
228 for (i = 0; i < infile->nb_streams; i++) {
229 InputStream *ist2 = input_streams[infile->ist_index + i];
230 if (!ist2->sub2video.ref)
232 /* subtitles seem to be usually muxed ahead of other streams;
233 if not, substracting a larger time here is necessary */
234 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
235 /* do not send the heartbeat frame if the subtitle is already ahead */
236 if (pts2 <= ist2->sub2video.last_pts)
238 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
239 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
241 sub2video_push_ref(ist2, pts2);
245 static void sub2video_flush(InputStream *ist)
249 for (i = 0; i < ist->nb_filters; i++)
250 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
253 /* end of sub2video hack */
257 av_log(NULL, AV_LOG_QUIET, "%s", "");
260 tcsetattr (0, TCSANOW, &oldtty);
264 static volatile int received_sigterm = 0;
265 static volatile int received_nb_signals = 0;
268 sigterm_handler(int sig)
270 received_sigterm = sig;
271 received_nb_signals++;
273 if(received_nb_signals > 3)
284 istty = isatty(0) && isatty(2);
286 if (istty && tcgetattr (0, &tty) == 0) {
291 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
292 |INLCR|IGNCR|ICRNL|IXON);
293 tty.c_oflag |= OPOST;
294 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
295 tty.c_cflag &= ~(CSIZE|PARENB);
300 tcsetattr (0, TCSANOW, &tty);
302 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
305 avformat_network_deinit();
307 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
308 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
310 signal(SIGXCPU, sigterm_handler);
314 /* read a key without blocking */
315 static int read_key(void)
327 n = select(1, &rfds, NULL, NULL, &tv);
336 # if HAVE_PEEKNAMEDPIPE
338 static HANDLE input_handle;
341 input_handle = GetStdHandle(STD_INPUT_HANDLE);
342 is_pipe = !GetConsoleMode(input_handle, &dw);
345 if (stdin->_cnt > 0) {
350 /* When running under a GUI, you will end here. */
351 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
368 static int decode_interrupt_cb(void *ctx)
370 return received_nb_signals > 1;
373 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
375 void av_noreturn exit_program(int ret)
379 for (i = 0; i < nb_filtergraphs; i++) {
380 avfilter_graph_free(&filtergraphs[i]->graph);
381 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
382 av_freep(&filtergraphs[i]->inputs[j]->name);
383 av_freep(&filtergraphs[i]->inputs[j]);
385 av_freep(&filtergraphs[i]->inputs);
386 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
387 av_freep(&filtergraphs[i]->outputs[j]->name);
388 av_freep(&filtergraphs[i]->outputs[j]);
390 av_freep(&filtergraphs[i]->outputs);
391 av_freep(&filtergraphs[i]);
393 av_freep(&filtergraphs);
395 av_freep(&subtitle_out);
398 for (i = 0; i < nb_output_files; i++) {
399 AVFormatContext *s = output_files[i]->ctx;
400 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
402 avformat_free_context(s);
403 av_dict_free(&output_files[i]->opts);
404 av_freep(&output_files[i]);
406 for (i = 0; i < nb_output_streams; i++) {
407 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
409 AVBitStreamFilterContext *next = bsfc->next;
410 av_bitstream_filter_close(bsfc);
413 output_streams[i]->bitstream_filters = NULL;
415 av_freep(&output_streams[i]->forced_keyframes);
416 av_freep(&output_streams[i]->avfilter);
417 av_freep(&output_streams[i]->logfile_prefix);
418 av_freep(&output_streams[i]->filtered_frame);
419 av_freep(&output_streams[i]);
421 for (i = 0; i < nb_input_files; i++) {
422 avformat_close_input(&input_files[i]->ctx);
423 av_freep(&input_files[i]);
425 for (i = 0; i < nb_input_streams; i++) {
426 av_freep(&input_streams[i]->decoded_frame);
427 av_dict_free(&input_streams[i]->opts);
428 free_buffer_pool(&input_streams[i]->buffer_pool);
429 avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
430 av_freep(&input_streams[i]->filters);
431 av_freep(&input_streams[i]);
436 av_free(vstats_filename);
438 av_freep(&input_streams);
439 av_freep(&input_files);
440 av_freep(&output_streams);
441 av_freep(&output_files);
446 avformat_network_deinit();
448 if (received_sigterm) {
449 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
450 (int) received_sigterm);
457 void assert_avoptions(AVDictionary *m)
459 AVDictionaryEntry *t;
460 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
461 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
466 static void assert_codec_experimental(AVCodecContext *c, int encoder)
468 const char *codec_string = encoder ? "encoder" : "decoder";
470 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
471 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
472 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
473 "results.\nAdd '-strict experimental' if you want to use it.\n",
474 codec_string, c->codec->name);
475 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
476 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
477 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
478 codec_string, codec->name);
483 static void update_benchmark(const char *fmt, ...)
485 if (do_benchmark_all) {
486 int64_t t = getutime();
492 vsnprintf(buf, sizeof(buf), fmt, va);
494 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
500 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
502 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
503 AVCodecContext *avctx = ost->st->codec;
506 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
507 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
508 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
510 if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
511 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
512 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
513 av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
514 "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
515 if(pkt->pts >= pkt->dts)
516 pkt->pts = FFMAX(pkt->pts, max);
522 * Audio encoders may split the packets -- #frames in != #packets out.
523 * But there is no reordering, so we can limit the number of output packets
524 * by simply dropping them here.
525 * Counting encoded video frames needs to be done separately because of
526 * reordering, see do_video_out()
528 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
529 if (ost->frame_number >= ost->max_frames) {
537 AVPacket new_pkt = *pkt;
538 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
539 &new_pkt.data, &new_pkt.size,
540 pkt->data, pkt->size,
541 pkt->flags & AV_PKT_FLAG_KEY);
542 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
543 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
545 memcpy(t, new_pkt.data, new_pkt.size);
546 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
554 new_pkt.destruct = av_destruct_packet;
556 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
557 bsfc->filter->name, pkt->stream_index,
558 avctx->codec ? avctx->codec->name : "copy");
568 pkt->stream_index = ost->index;
569 ret = av_interleaved_write_frame(s, pkt);
571 print_error("av_interleaved_write_frame()", ret);
576 static void close_output_stream(OutputStream *ost)
578 OutputFile *of = output_files[ost->file_index];
583 for (i = 0; i < of->ctx->nb_streams; i++)
584 output_streams[of->ost_index + i]->finished = 1;
588 static int check_recording_time(OutputStream *ost)
590 OutputFile *of = output_files[ost->file_index];
592 if (of->recording_time != INT64_MAX &&
593 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
594 AV_TIME_BASE_Q) >= 0) {
595 close_output_stream(ost);
601 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
604 AVCodecContext *enc = ost->st->codec;
608 av_init_packet(&pkt);
612 if (!check_recording_time(ost))
615 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
616 frame->pts = ost->sync_opts;
617 ost->sync_opts = frame->pts + frame->nb_samples;
619 av_assert0(pkt.size || !pkt.data);
620 update_benchmark(NULL);
621 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
622 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
625 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
628 if (pkt.pts != AV_NOPTS_VALUE)
629 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
630 if (pkt.dts != AV_NOPTS_VALUE)
631 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
632 if (pkt.duration > 0)
633 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
636 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
637 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
638 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
639 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
642 write_frame(s, &pkt, ost);
644 audio_size += pkt.size;
645 av_free_packet(&pkt);
649 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
653 AVPicture picture_tmp;
656 dec = ist->st->codec;
658 /* deinterlace : must be done before any resize */
659 if (do_deinterlace) {
662 /* create temporary picture */
663 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
664 buf = av_malloc(size);
668 picture2 = &picture_tmp;
669 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
671 if (avpicture_deinterlace(picture2, picture,
672 dec->pix_fmt, dec->width, dec->height) < 0) {
673 /* if error, do not deinterlace */
674 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
683 if (picture != picture2)
684 *picture = *picture2;
688 static void do_subtitle_out(AVFormatContext *s,
694 int subtitle_out_max_size = 1024 * 1024;
695 int subtitle_out_size, nb, i;
699 if (pts == AV_NOPTS_VALUE) {
700 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
706 enc = ost->st->codec;
709 subtitle_out = av_malloc(subtitle_out_max_size);
712 /* Note: DVB subtitle need one packet to draw them and one other
713 packet to clear them */
714 /* XXX: signal it in the codec context ? */
715 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
720 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
721 pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q)
722 - output_files[ost->file_index]->start_time;
723 for (i = 0; i < nb; i++) {
724 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
725 if (!check_recording_time(ost))
729 // start_display_time is required to be 0
730 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
731 sub->end_display_time -= sub->start_display_time;
732 sub->start_display_time = 0;
735 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
736 subtitle_out_max_size, sub);
737 if (subtitle_out_size < 0) {
738 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
742 av_init_packet(&pkt);
743 pkt.data = subtitle_out;
744 pkt.size = subtitle_out_size;
745 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
746 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
747 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
748 /* XXX: the pts correction is handled here. Maybe handling
749 it in the codec would be better */
751 pkt.pts += 90 * sub->start_display_time;
753 pkt.pts += 90 * sub->end_display_time;
755 write_frame(s, &pkt, ost);
756 subtitle_size += pkt.size;
760 static void do_video_out(AVFormatContext *s,
765 int ret, format_video_sync;
767 AVCodecContext *enc = ost->st->codec;
769 double sync_ipts, delta;
772 InputStream *ist = NULL;
774 if (ost->source_index >= 0)
775 ist = input_streams[ost->source_index];
777 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
778 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
780 sync_ipts = in_picture->pts;
781 delta = sync_ipts - ost->sync_opts + duration;
783 /* by default, we output a single frame */
786 format_video_sync = video_sync_method;
787 if (format_video_sync == VSYNC_AUTO)
788 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
790 switch (format_video_sync) {
792 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
795 else if (delta > 1.1)
796 nb_frames = lrintf(delta);
801 else if (delta > 0.6)
802 ost->sync_opts = lrint(sync_ipts);
805 case VSYNC_PASSTHROUGH:
806 ost->sync_opts = lrint(sync_ipts);
812 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
813 if (nb_frames == 0) {
815 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
817 } else if (nb_frames > 1) {
818 if (nb_frames > dts_error_threshold * 30) {
819 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skiping\n", nb_frames - 1);
823 nb_frames_dup += nb_frames - 1;
824 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
827 /* duplicates frame if needed */
828 for (i = 0; i < nb_frames; i++) {
829 av_init_packet(&pkt);
833 in_picture->pts = ost->sync_opts;
835 if (!check_recording_time(ost))
838 if (s->oformat->flags & AVFMT_RAWPICTURE &&
839 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
840 /* raw pictures are written as AVPicture structure to
841 avoid any copies. We support temporarily the older
843 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
844 enc->coded_frame->top_field_first = in_picture->top_field_first;
845 pkt.data = (uint8_t *)in_picture;
846 pkt.size = sizeof(AVPicture);
847 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
848 pkt.flags |= AV_PKT_FLAG_KEY;
850 write_frame(s, &pkt, ost);
851 video_size += pkt.size;
856 big_picture = *in_picture;
857 /* better than nothing: use input picture interlaced
859 big_picture.interlaced_frame = in_picture->interlaced_frame;
860 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
861 if (ost->top_field_first == -1)
862 big_picture.top_field_first = in_picture->top_field_first;
864 big_picture.top_field_first = !!ost->top_field_first;
867 /* handles same_quant here. This is not correct because it may
868 not be a global option */
869 big_picture.quality = quality;
870 if (!enc->me_threshold)
871 big_picture.pict_type = 0;
872 if (ost->forced_kf_index < ost->forced_kf_count &&
873 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
874 big_picture.pict_type = AV_PICTURE_TYPE_I;
875 ost->forced_kf_index++;
877 update_benchmark(NULL);
878 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
879 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
881 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
886 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
887 pkt.pts = ost->sync_opts;
889 if (pkt.pts != AV_NOPTS_VALUE)
890 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
891 if (pkt.dts != AV_NOPTS_VALUE)
892 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
895 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
896 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
897 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
898 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
901 write_frame(s, &pkt, ost);
902 frame_size = pkt.size;
903 video_size += pkt.size;
904 av_free_packet(&pkt);
906 /* if two pass, output log */
907 if (ost->logfile && enc->stats_out) {
908 fprintf(ost->logfile, "%s", enc->stats_out);
914 * For video, number of frames in == number of packets out.
915 * But there may be reordering, so we can't throw away frames on encoder
916 * flush, we need to limit them here, before they go into encoder.
921 if (vstats_filename && frame_size)
922 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
925 static double psnr(double d)
927 return -10.0 * log(d) / log(10.0);
930 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
935 double ti1, bitrate, avg_bitrate;
937 /* this is executed just the first time do_video_stats is called */
939 vstats_file = fopen(vstats_filename, "w");
946 enc = ost->st->codec;
947 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
948 frame_number = ost->frame_number;
949 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
950 if (enc->flags&CODEC_FLAG_PSNR)
951 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
953 fprintf(vstats_file,"f_size= %6d ", frame_size);
954 /* compute pts value */
955 ti1 = ost->sync_opts * av_q2d(enc->time_base);
959 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
960 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
961 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
962 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
963 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
968 * Get and encode new output from any of the filtergraphs, without causing
971 * @return 0 for success, <0 for severe errors
973 static int reap_filters(void)
975 AVFilterBufferRef *picref;
976 AVFrame *filtered_frame = NULL;
980 /* Reap all buffers present in the buffer sinks */
981 for (i = 0; i < nb_output_streams; i++) {
982 OutputStream *ost = output_streams[i];
983 OutputFile *of = output_files[ost->file_index];
989 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
990 return AVERROR(ENOMEM);
992 avcodec_get_frame_defaults(ost->filtered_frame);
993 filtered_frame = ost->filtered_frame;
996 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
997 AV_BUFFERSINK_FLAG_NO_REQUEST);
999 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1001 av_strerror(ret, buf, sizeof(buf));
1002 av_log(NULL, AV_LOG_WARNING,
1003 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1007 frame_pts = AV_NOPTS_VALUE;
1008 if (picref->pts != AV_NOPTS_VALUE) {
1009 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1010 ost->filter->filter->inputs[0]->time_base,
1011 ost->st->codec->time_base) -
1012 av_rescale_q(of->start_time,
1014 ost->st->codec->time_base);
1016 if (of->start_time && filtered_frame->pts < 0) {
1017 avfilter_unref_buffer(picref);
1021 //if (ost->source_index >= 0)
1022 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1025 switch (ost->filter->filter->inputs[0]->type) {
1026 case AVMEDIA_TYPE_VIDEO:
1027 avfilter_copy_buf_props(filtered_frame, picref);
1028 filtered_frame->pts = frame_pts;
1029 if (!ost->frame_aspect_ratio)
1030 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1032 do_video_out(of->ctx, ost, filtered_frame,
1033 same_quant ? ost->last_quality :
1034 ost->st->codec->global_quality);
1036 case AVMEDIA_TYPE_AUDIO:
1037 avfilter_copy_buf_props(filtered_frame, picref);
1038 filtered_frame->pts = frame_pts;
1039 do_audio_out(of->ctx, ost, filtered_frame);
1042 // TODO support subtitle filters
1046 avfilter_unref_buffer(picref);
1053 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1056 AVBPrint buf_script;
1058 AVFormatContext *oc;
1060 AVCodecContext *enc;
1061 int frame_number, vid, i;
1063 int64_t pts = INT64_MIN;
1064 static int64_t last_time = -1;
1065 static int qp_histogram[52];
1066 int hours, mins, secs, us;
1068 if (!print_stats && !is_last_report && !progress_avio)
1071 if (!is_last_report) {
1072 if (last_time == -1) {
1073 last_time = cur_time;
1076 if ((cur_time - last_time) < 500000)
1078 last_time = cur_time;
1082 oc = output_files[0]->ctx;
1084 total_size = avio_size(oc->pb);
1085 if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
1086 total_size = avio_tell(oc->pb);
1093 av_bprint_init(&buf_script, 0, 1);
1094 for (i = 0; i < nb_output_streams; i++) {
1096 ost = output_streams[i];
1097 enc = ost->st->codec;
1098 if (!ost->stream_copy && enc->coded_frame)
1099 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1100 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1101 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1102 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1103 ost->file_index, ost->index, q);
1105 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1106 float fps, t = (cur_time-timer_start) / 1000000.0;
1108 frame_number = ost->frame_number;
1109 fps = t > 1 ? frame_number / t : 0;
1110 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1111 frame_number, fps < 9.95, fps, q);
1112 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1113 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1114 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1115 ost->file_index, ost->index, q);
1117 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1121 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1123 for (j = 0; j < 32; j++)
1124 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1126 if (enc->flags&CODEC_FLAG_PSNR) {
1128 double error, error_sum = 0;
1129 double scale, scale_sum = 0;
1131 char type[3] = { 'Y','U','V' };
1132 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1133 for (j = 0; j < 3; j++) {
1134 if (is_last_report) {
1135 error = enc->error[j];
1136 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1138 error = enc->coded_frame->error[j];
1139 scale = enc->width * enc->height * 255.0 * 255.0;
1145 p = psnr(error / scale);
1146 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1147 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1148 ost->file_index, ost->index, type[i] | 32, p);
1150 p = psnr(error_sum / scale_sum);
1151 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1152 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1153 ost->file_index, ost->index, p);
1157 /* compute min output value */
1158 if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
1159 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1160 ost->st->time_base, AV_TIME_BASE_Q));
1163 secs = pts / AV_TIME_BASE;
1164 us = pts % AV_TIME_BASE;
1170 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1172 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1173 "size=%8.0fkB time=", total_size / 1024.0);
1174 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1175 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1176 (100 * us) / AV_TIME_BASE);
1177 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1178 "bitrate=%6.1fkbits/s", bitrate);
1179 av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1180 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1181 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1182 hours, mins, secs, us);
1184 if (nb_frames_dup || nb_frames_drop)
1185 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1186 nb_frames_dup, nb_frames_drop);
1187 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1188 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1190 if (print_stats || is_last_report) {
1191 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1196 if (progress_avio) {
1197 av_bprintf(&buf_script, "progress=%s\n",
1198 is_last_report ? "end" : "continue");
1199 avio_write(progress_avio, buf_script.str,
1200 FFMIN(buf_script.len, buf_script.size - 1));
1201 avio_flush(progress_avio);
1202 av_bprint_finalize(&buf_script, NULL);
1203 if (is_last_report) {
1204 avio_close(progress_avio);
1205 progress_avio = NULL;
1209 if (is_last_report) {
1210 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
1211 av_log(NULL, AV_LOG_INFO, "\n");
1212 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
1213 video_size / 1024.0,
1214 audio_size / 1024.0,
1215 subtitle_size / 1024.0,
1216 extra_size / 1024.0,
1217 100.0 * (total_size - raw) / raw
1219 if(video_size + audio_size + subtitle_size + extra_size == 0){
1220 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1225 static void flush_encoders(void)
1229 for (i = 0; i < nb_output_streams; i++) {
1230 OutputStream *ost = output_streams[i];
1231 AVCodecContext *enc = ost->st->codec;
1232 AVFormatContext *os = output_files[ost->file_index]->ctx;
1233 int stop_encoding = 0;
1235 if (!ost->encoding_needed)
1238 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1240 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1244 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1248 switch (ost->st->codec->codec_type) {
1249 case AVMEDIA_TYPE_AUDIO:
1250 encode = avcodec_encode_audio2;
1254 case AVMEDIA_TYPE_VIDEO:
1255 encode = avcodec_encode_video2;
1266 av_init_packet(&pkt);
1270 update_benchmark(NULL);
1271 ret = encode(enc, &pkt, NULL, &got_packet);
1272 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1274 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1278 if (ost->logfile && enc->stats_out) {
1279 fprintf(ost->logfile, "%s", enc->stats_out);
1285 if (pkt.pts != AV_NOPTS_VALUE)
1286 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1287 if (pkt.dts != AV_NOPTS_VALUE)
1288 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1289 write_frame(os, &pkt, ost);
1299 * Check whether a packet from ist should be written into ost at this time
1301 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1303 OutputFile *of = output_files[ost->file_index];
1304 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1306 if (ost->source_index != ist_index)
1309 if (of->start_time && ist->pts < of->start_time)
1315 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1317 OutputFile *of = output_files[ost->file_index];
1318 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1322 av_init_packet(&opkt);
1324 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1325 !ost->copy_initial_nonkeyframes)
1328 if (of->recording_time != INT64_MAX &&
1329 ist->pts >= of->recording_time + of->start_time) {
1330 close_output_stream(ost);
1334 /* force the input stream PTS */
1335 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1336 audio_size += pkt->size;
1337 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1338 video_size += pkt->size;
1340 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1341 subtitle_size += pkt->size;
1344 if (pkt->pts != AV_NOPTS_VALUE)
1345 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1347 opkt.pts = AV_NOPTS_VALUE;
1349 if (pkt->dts == AV_NOPTS_VALUE)
1350 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1352 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1353 opkt.dts -= ost_tb_start_time;
1355 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1356 opkt.flags = pkt->flags;
1358 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1359 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1360 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1361 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1362 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1364 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1365 opkt.destruct = av_destruct_packet;
1367 opkt.data = pkt->data;
1368 opkt.size = pkt->size;
1371 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1372 /* store AVPicture in AVPacket, as expected by the output format */
1373 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1374 opkt.data = (uint8_t *)&pict;
1375 opkt.size = sizeof(AVPicture);
1376 opkt.flags |= AV_PKT_FLAG_KEY;
1379 write_frame(of->ctx, &opkt, ost);
1380 ost->st->codec->frame_number++;
1381 av_free_packet(&opkt);
1384 static void rate_emu_sleep(InputStream *ist)
1386 if (input_files[ist->file_index]->rate_emu) {
1387 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1388 int64_t now = av_gettime() - ist->start;
1390 av_usleep(pts - now);
1394 int guess_input_channel_layout(InputStream *ist)
1396 AVCodecContext *dec = ist->st->codec;
1398 if (!dec->channel_layout) {
1399 char layout_name[256];
1401 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1402 if (!dec->channel_layout)
1404 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1405 dec->channels, dec->channel_layout);
1406 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1407 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1412 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1414 AVFrame *decoded_frame;
1415 AVCodecContext *avctx = ist->st->codec;
1416 int i, ret, resample_changed;
1417 AVRational decoded_frame_tb;
1419 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1420 return AVERROR(ENOMEM);
1422 avcodec_get_frame_defaults(ist->decoded_frame);
1423 decoded_frame = ist->decoded_frame;
1425 update_benchmark(NULL);
1426 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1427 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1429 if (ret >= 0 && avctx->sample_rate <= 0) {
1430 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1431 ret = AVERROR_INVALIDDATA;
1434 if (!*got_output || ret < 0) {
1436 for (i = 0; i < ist->nb_filters; i++)
1437 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1443 /* increment next_dts to use for the case where the input stream does not
1444 have timestamps or there are multiple frames in the packet */
1445 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1447 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1451 rate_emu_sleep(ist);
1453 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1454 ist->resample_channels != avctx->channels ||
1455 ist->resample_channel_layout != decoded_frame->channel_layout ||
1456 ist->resample_sample_rate != decoded_frame->sample_rate;
1457 if (resample_changed) {
1458 char layout1[64], layout2[64];
1460 if (!guess_input_channel_layout(ist)) {
1461 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1462 "layout for Input Stream #%d.%d\n", ist->file_index,
1466 decoded_frame->channel_layout = avctx->channel_layout;
1468 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1469 ist->resample_channel_layout);
1470 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1471 decoded_frame->channel_layout);
1473 av_log(NULL, AV_LOG_INFO,
1474 "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",
1475 ist->file_index, ist->st->index,
1476 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1477 ist->resample_channels, layout1,
1478 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1479 avctx->channels, layout2);
1481 ist->resample_sample_fmt = decoded_frame->format;
1482 ist->resample_sample_rate = decoded_frame->sample_rate;
1483 ist->resample_channel_layout = decoded_frame->channel_layout;
1484 ist->resample_channels = avctx->channels;
1486 for (i = 0; i < nb_filtergraphs; i++)
1487 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1488 FilterGraph *fg = filtergraphs[i];
1490 if (configure_filtergraph(fg) < 0) {
1491 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1494 for (j = 0; j < fg->nb_outputs; j++) {
1495 OutputStream *ost = fg->outputs[j]->ost;
1496 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1497 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1498 av_buffersink_set_frame_size(ost->filter->filter,
1499 ost->st->codec->frame_size);
1504 /* if the decoder provides a pts, use it instead of the last packet pts.
1505 the decoder could be delaying output by a packet or more. */
1506 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1507 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1508 decoded_frame_tb = avctx->time_base;
1509 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1510 decoded_frame->pts = decoded_frame->pkt_pts;
1511 pkt->pts = AV_NOPTS_VALUE;
1512 decoded_frame_tb = ist->st->time_base;
1513 } else if (pkt->pts != AV_NOPTS_VALUE) {
1514 decoded_frame->pts = pkt->pts;
1515 pkt->pts = AV_NOPTS_VALUE;
1516 decoded_frame_tb = ist->st->time_base;
1518 decoded_frame->pts = ist->dts;
1519 decoded_frame_tb = AV_TIME_BASE_Q;
1521 if (decoded_frame->pts != AV_NOPTS_VALUE)
1522 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1524 (AVRational){1, ist->st->codec->sample_rate});
1525 for (i = 0; i < ist->nb_filters; i++)
1526 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
1527 AV_BUFFERSRC_FLAG_PUSH);
1529 decoded_frame->pts = AV_NOPTS_VALUE;
1534 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1536 AVFrame *decoded_frame;
1537 void *buffer_to_free = NULL;
1538 int i, ret = 0, resample_changed;
1539 int64_t best_effort_timestamp;
1540 AVRational *frame_sample_aspect;
1543 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1544 return AVERROR(ENOMEM);
1546 avcodec_get_frame_defaults(ist->decoded_frame);
1547 decoded_frame = ist->decoded_frame;
1548 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1550 update_benchmark(NULL);
1551 ret = avcodec_decode_video2(ist->st->codec,
1552 decoded_frame, got_output, pkt);
1553 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1554 if (!*got_output || ret < 0) {
1556 for (i = 0; i < ist->nb_filters; i++)
1557 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1562 quality = same_quant ? decoded_frame->quality : 0;
1564 if(ist->top_field_first>=0)
1565 decoded_frame->top_field_first = ist->top_field_first;
1567 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1568 if(best_effort_timestamp != AV_NOPTS_VALUE)
1569 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1572 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1573 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
1574 ist->st->index, av_ts2str(decoded_frame->pts),
1575 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1576 best_effort_timestamp,
1577 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1578 decoded_frame->key_frame, decoded_frame->pict_type);
1582 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1584 rate_emu_sleep(ist);
1586 if (ist->st->sample_aspect_ratio.num)
1587 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1589 resample_changed = ist->resample_width != decoded_frame->width ||
1590 ist->resample_height != decoded_frame->height ||
1591 ist->resample_pix_fmt != decoded_frame->format;
1592 if (resample_changed) {
1593 av_log(NULL, AV_LOG_INFO,
1594 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1595 ist->file_index, ist->st->index,
1596 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1597 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1599 ist->resample_width = decoded_frame->width;
1600 ist->resample_height = decoded_frame->height;
1601 ist->resample_pix_fmt = decoded_frame->format;
1603 for (i = 0; i < nb_filtergraphs; i++)
1604 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1605 configure_filtergraph(filtergraphs[i]) < 0) {
1606 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1611 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1612 for (i = 0; i < ist->nb_filters; i++) {
1613 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
1614 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
1615 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
1616 // XXX what an ugly hack
1617 if (ist->filters[i]->graph->nb_outputs == 1)
1618 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
1620 if (!frame_sample_aspect->num)
1621 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1622 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
1623 FrameBuffer *buf = decoded_frame->opaque;
1624 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1625 decoded_frame->data, decoded_frame->linesize,
1626 AV_PERM_READ | AV_PERM_PRESERVE,
1627 ist->st->codec->width, ist->st->codec->height,
1628 ist->st->codec->pix_fmt);
1630 avfilter_copy_frame_props(fb, decoded_frame);
1631 fb->buf->priv = buf;
1632 fb->buf->free = filter_release_buffer;
1634 av_assert0(buf->refcount>0);
1636 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
1637 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
1638 AV_BUFFERSRC_FLAG_NO_COPY |
1639 AV_BUFFERSRC_FLAG_PUSH);
1641 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
1642 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
1648 av_free(buffer_to_free);
1652 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1654 AVSubtitle subtitle;
1655 int64_t pts = pkt->pts;
1656 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1657 &subtitle, got_output, pkt);
1658 if (ret < 0 || !*got_output) {
1660 sub2video_flush(ist);
1664 if (ist->fix_sub_duration) {
1665 if (ist->prev_sub.got_output) {
1666 int end = av_rescale_q(pts - ist->prev_sub.pts, ist->st->time_base,
1667 (AVRational){ 1, 1000 });
1668 if (end < ist->prev_sub.subtitle.end_display_time) {
1669 av_log(ist->st->codec, AV_LOG_DEBUG,
1670 "Subtitle duration reduced from %d to %d\n",
1671 ist->prev_sub.subtitle.end_display_time, end);
1672 ist->prev_sub.subtitle.end_display_time = end;
1675 FFSWAP(int64_t, pts, ist->prev_sub.pts);
1676 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1677 FFSWAP(int, ret, ist->prev_sub.ret);
1678 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1681 if (!*got_output || !subtitle.num_rects)
1684 rate_emu_sleep(ist);
1686 sub2video_update(ist, &subtitle, pkt->pts);
1688 for (i = 0; i < nb_output_streams; i++) {
1689 OutputStream *ost = output_streams[i];
1691 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1694 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pts);
1697 avsubtitle_free(&subtitle);
1701 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1702 static int output_packet(InputStream *ist, const AVPacket *pkt)
1708 if (!ist->saw_first_ts) {
1709 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;
1711 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
1712 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1713 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
1715 ist->saw_first_ts = 1;
1718 if (ist->next_dts == AV_NOPTS_VALUE)
1719 ist->next_dts = ist->dts;
1720 if (ist->next_pts == AV_NOPTS_VALUE)
1721 ist->next_pts = ist->pts;
1725 av_init_packet(&avpkt);
1733 if (pkt->dts != AV_NOPTS_VALUE) {
1734 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1735 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
1736 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1739 // while we have more to decode or while the decoder did output something on EOF
1740 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1744 ist->pts = ist->next_pts;
1745 ist->dts = ist->next_dts;
1747 if (avpkt.size && avpkt.size != pkt->size) {
1748 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1749 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1750 ist->showed_multi_packet_warning = 1;
1753 switch (ist->st->codec->codec_type) {
1754 case AVMEDIA_TYPE_AUDIO:
1755 ret = decode_audio (ist, &avpkt, &got_output);
1757 case AVMEDIA_TYPE_VIDEO:
1758 ret = decode_video (ist, &avpkt, &got_output);
1759 if (avpkt.duration) {
1760 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1761 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
1762 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1763 duration = ((int64_t)AV_TIME_BASE *
1764 ist->st->codec->time_base.num * ticks) /
1765 ist->st->codec->time_base.den;
1769 if(ist->dts != AV_NOPTS_VALUE && duration) {
1770 ist->next_dts += duration;
1772 ist->next_dts = AV_NOPTS_VALUE;
1775 ist->next_pts += duration; //FIXME the duration is not correct in some cases
1777 case AVMEDIA_TYPE_SUBTITLE:
1778 ret = transcode_subtitles(ist, &avpkt, &got_output);
1788 avpkt.pts= AV_NOPTS_VALUE;
1790 // touch data and size only if not EOF
1792 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
1802 /* handle stream copy */
1803 if (!ist->decoding_needed) {
1804 rate_emu_sleep(ist);
1805 ist->dts = ist->next_dts;
1806 switch (ist->st->codec->codec_type) {
1807 case AVMEDIA_TYPE_AUDIO:
1808 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1809 ist->st->codec->sample_rate;
1811 case AVMEDIA_TYPE_VIDEO:
1812 if (pkt->duration) {
1813 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1814 } else if(ist->st->codec->time_base.num != 0) {
1815 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1816 ist->next_dts += ((int64_t)AV_TIME_BASE *
1817 ist->st->codec->time_base.num * ticks) /
1818 ist->st->codec->time_base.den;
1822 ist->pts = ist->dts;
1823 ist->next_pts = ist->next_dts;
1825 for (i = 0; pkt && i < nb_output_streams; i++) {
1826 OutputStream *ost = output_streams[i];
1828 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1831 do_streamcopy(ist, ost, pkt);
1837 static void print_sdp(void)
1841 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1845 for (i = 0; i < nb_output_files; i++)
1846 avc[i] = output_files[i]->ctx;
1848 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1849 printf("SDP:\n%s\n", sdp);
1854 static int init_input_stream(int ist_index, char *error, int error_len)
1856 InputStream *ist = input_streams[ist_index];
1858 if (ist->decoding_needed) {
1859 AVCodec *codec = ist->dec;
1861 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
1862 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1863 return AVERROR(EINVAL);
1866 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
1867 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
1868 ist->st->codec->get_buffer = codec_get_buffer;
1869 ist->st->codec->release_buffer = codec_release_buffer;
1870 ist->st->codec->opaque = &ist->buffer_pool;
1873 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1874 av_dict_set(&ist->opts, "threads", "auto", 0);
1875 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1876 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1877 ist->file_index, ist->st->index);
1878 return AVERROR(EINVAL);
1880 assert_codec_experimental(ist->st->codec, 0);
1881 assert_avoptions(ist->opts);
1884 ist->next_pts = AV_NOPTS_VALUE;
1885 ist->next_dts = AV_NOPTS_VALUE;
1891 static InputStream *get_input_stream(OutputStream *ost)
1893 if (ost->source_index >= 0)
1894 return input_streams[ost->source_index];
1898 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1899 AVCodecContext *avctx)
1905 for (p = kf; *p; p++)
1908 ost->forced_kf_count = n;
1909 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1910 if (!ost->forced_kf_pts) {
1911 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1916 for (i = 0; i < n; i++) {
1917 char *next = strchr(p, ',');
1922 t = parse_time_or_die("force_key_frames", p, 1);
1923 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1929 static void report_new_stream(int input_index, AVPacket *pkt)
1931 InputFile *file = input_files[input_index];
1932 AVStream *st = file->ctx->streams[pkt->stream_index];
1934 if (pkt->stream_index < file->nb_streams_warn)
1936 av_log(file->ctx, AV_LOG_WARNING,
1937 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
1938 av_get_media_type_string(st->codec->codec_type),
1939 input_index, pkt->stream_index,
1940 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
1941 file->nb_streams_warn = pkt->stream_index + 1;
1944 static int transcode_init(void)
1946 int ret = 0, i, j, k;
1947 AVFormatContext *oc;
1948 AVCodecContext *codec;
1954 /* init framerate emulation */
1955 for (i = 0; i < nb_input_files; i++) {
1956 InputFile *ifile = input_files[i];
1957 if (ifile->rate_emu)
1958 for (j = 0; j < ifile->nb_streams; j++)
1959 input_streams[j + ifile->ist_index]->start = av_gettime();
1962 /* output stream init */
1963 for (i = 0; i < nb_output_files; i++) {
1964 oc = output_files[i]->ctx;
1965 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1966 av_dump_format(oc, i, oc->filename, 1);
1967 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1968 return AVERROR(EINVAL);
1972 /* init complex filtergraphs */
1973 for (i = 0; i < nb_filtergraphs; i++)
1974 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1977 /* for each output stream, we compute the right encoding parameters */
1978 for (i = 0; i < nb_output_streams; i++) {
1979 AVCodecContext *icodec = NULL;
1980 ost = output_streams[i];
1981 oc = output_files[ost->file_index]->ctx;
1982 ist = get_input_stream(ost);
1984 if (ost->attachment_filename)
1987 codec = ost->st->codec;
1990 icodec = ist->st->codec;
1992 ost->st->disposition = ist->st->disposition;
1993 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1994 codec->chroma_sample_location = icodec->chroma_sample_location;
1997 if (ost->stream_copy) {
1998 uint64_t extra_size;
2000 av_assert0(ist && !ost->filter);
2002 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2004 if (extra_size > INT_MAX) {
2005 return AVERROR(EINVAL);
2008 /* if stream_copy is selected, no need to decode or encode */
2009 codec->codec_id = icodec->codec_id;
2010 codec->codec_type = icodec->codec_type;
2012 if (!codec->codec_tag) {
2013 if (!oc->oformat->codec_tag ||
2014 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2015 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2016 codec->codec_tag = icodec->codec_tag;
2019 codec->bit_rate = icodec->bit_rate;
2020 codec->rc_max_rate = icodec->rc_max_rate;
2021 codec->rc_buffer_size = icodec->rc_buffer_size;
2022 codec->field_order = icodec->field_order;
2023 codec->extradata = av_mallocz(extra_size);
2024 if (!codec->extradata) {
2025 return AVERROR(ENOMEM);
2027 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2028 codec->extradata_size= icodec->extradata_size;
2029 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2031 codec->time_base = ist->st->time_base;
2033 * Avi is a special case here because it supports variable fps but
2034 * having the fps and timebase differe significantly adds quite some
2037 if(!strcmp(oc->oformat->name, "avi")) {
2038 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2039 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2040 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2041 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2043 codec->time_base.num = ist->st->r_frame_rate.den;
2044 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2045 codec->ticks_per_frame = 2;
2046 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2047 && av_q2d(ist->st->time_base) < 1.0/500
2049 codec->time_base = icodec->time_base;
2050 codec->time_base.num *= icodec->ticks_per_frame;
2051 codec->time_base.den *= 2;
2052 codec->ticks_per_frame = 2;
2054 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2055 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2056 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2058 if( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2059 && av_q2d(ist->st->time_base) < 1.0/500
2061 codec->time_base = icodec->time_base;
2062 codec->time_base.num *= icodec->ticks_per_frame;
2066 if(ost->frame_rate.num)
2067 codec->time_base = av_inv_q(ost->frame_rate);
2069 av_reduce(&codec->time_base.num, &codec->time_base.den,
2070 codec->time_base.num, codec->time_base.den, INT_MAX);
2072 switch (codec->codec_type) {
2073 case AVMEDIA_TYPE_AUDIO:
2074 if (audio_volume != 256) {
2075 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2078 codec->channel_layout = icodec->channel_layout;
2079 codec->sample_rate = icodec->sample_rate;
2080 codec->channels = icodec->channels;
2081 codec->frame_size = icodec->frame_size;
2082 codec->audio_service_type = icodec->audio_service_type;
2083 codec->block_align = icodec->block_align;
2084 if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
2085 codec->block_align= 0;
2086 if(codec->codec_id == AV_CODEC_ID_AC3)
2087 codec->block_align= 0;
2089 case AVMEDIA_TYPE_VIDEO:
2090 codec->pix_fmt = icodec->pix_fmt;
2091 codec->width = icodec->width;
2092 codec->height = icodec->height;
2093 codec->has_b_frames = icodec->has_b_frames;
2094 if (!codec->sample_aspect_ratio.num) {
2095 codec->sample_aspect_ratio =
2096 ost->st->sample_aspect_ratio =
2097 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2098 ist->st->codec->sample_aspect_ratio.num ?
2099 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2101 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2103 case AVMEDIA_TYPE_SUBTITLE:
2104 codec->width = icodec->width;
2105 codec->height = icodec->height;
2107 case AVMEDIA_TYPE_DATA:
2108 case AVMEDIA_TYPE_ATTACHMENT:
2115 ost->enc = avcodec_find_encoder(codec->codec_id);
2117 /* should only happen when a default codec is not present. */
2118 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2119 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2120 ret = AVERROR(EINVAL);
2125 ist->decoding_needed++;
2126 ost->encoding_needed = 1;
2129 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2130 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2132 fg = init_simple_filtergraph(ist, ost);
2133 if (configure_filtergraph(fg)) {
2134 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2139 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2140 if (ost->filter && !ost->frame_rate.num)
2141 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2142 if (ist && !ost->frame_rate.num)
2143 ost->frame_rate = ist->framerate;
2144 if (ist && !ost->frame_rate.num)
2145 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2146 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2147 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2148 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2149 ost->frame_rate = ost->enc->supported_framerates[idx];
2153 switch (codec->codec_type) {
2154 case AVMEDIA_TYPE_AUDIO:
2155 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2156 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2157 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2158 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2159 codec->time_base = (AVRational){ 1, codec->sample_rate };
2161 case AVMEDIA_TYPE_VIDEO:
2162 codec->time_base = av_inv_q(ost->frame_rate);
2163 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2164 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2165 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2166 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2167 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2168 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2170 for (j = 0; j < ost->forced_kf_count; j++)
2171 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2175 codec->width = ost->filter->filter->inputs[0]->w;
2176 codec->height = ost->filter->filter->inputs[0]->h;
2177 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2178 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2179 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2180 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2181 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2184 codec->width != icodec->width ||
2185 codec->height != icodec->height ||
2186 codec->pix_fmt != icodec->pix_fmt) {
2187 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2190 if (ost->forced_keyframes)
2191 parse_forced_key_frames(ost->forced_keyframes, ost,
2194 case AVMEDIA_TYPE_SUBTITLE:
2195 codec->time_base = (AVRational){1, 1000};
2196 if (!codec->width) {
2197 codec->width = input_streams[ost->source_index]->st->codec->width;
2198 codec->height = input_streams[ost->source_index]->st->codec->height;
2206 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2207 char logfilename[1024];
2210 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2211 ost->logfile_prefix ? ost->logfile_prefix :
2212 DEFAULT_PASS_LOGFILENAME_PREFIX,
2214 if (!strcmp(ost->enc->name, "libx264")) {
2215 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2217 if (codec->flags & CODEC_FLAG_PASS2) {
2219 size_t logbuffer_size;
2220 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2221 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2225 codec->stats_in = logbuffer;
2227 if (codec->flags & CODEC_FLAG_PASS1) {
2228 f = fopen(logfilename, "wb");
2230 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2231 logfilename, strerror(errno));
2241 /* open each encoder */
2242 for (i = 0; i < nb_output_streams; i++) {
2243 ost = output_streams[i];
2244 if (ost->encoding_needed) {
2245 AVCodec *codec = ost->enc;
2246 AVCodecContext *dec = NULL;
2248 if ((ist = get_input_stream(ost)))
2249 dec = ist->st->codec;
2250 if (dec && dec->subtitle_header) {
2251 /* ASS code assumes this buffer is null terminated so add extra byte. */
2252 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2253 if (!ost->st->codec->subtitle_header) {
2254 ret = AVERROR(ENOMEM);
2257 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2258 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2260 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2261 av_dict_set(&ost->opts, "threads", "auto", 0);
2262 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2263 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2264 ost->file_index, ost->index);
2265 ret = AVERROR(EINVAL);
2268 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2269 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2270 av_buffersink_set_frame_size(ost->filter->filter,
2271 ost->st->codec->frame_size);
2272 assert_codec_experimental(ost->st->codec, 1);
2273 assert_avoptions(ost->opts);
2274 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2275 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2276 " It takes bits/s as argument, not kbits/s\n");
2277 extra_size += ost->st->codec->extradata_size;
2279 if (ost->st->codec->me_threshold)
2280 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2284 /* init input streams */
2285 for (i = 0; i < nb_input_streams; i++)
2286 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2289 /* discard unused programs */
2290 for (i = 0; i < nb_input_files; i++) {
2291 InputFile *ifile = input_files[i];
2292 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2293 AVProgram *p = ifile->ctx->programs[j];
2294 int discard = AVDISCARD_ALL;
2296 for (k = 0; k < p->nb_stream_indexes; k++)
2297 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2298 discard = AVDISCARD_DEFAULT;
2301 p->discard = discard;
2305 /* open files and write file headers */
2306 for (i = 0; i < nb_output_files; i++) {
2307 oc = output_files[i]->ctx;
2308 oc->interrupt_callback = int_cb;
2309 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2311 const char *errbuf_ptr = errbuf;
2312 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2313 errbuf_ptr = strerror(AVUNERROR(ret));
2314 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2315 ret = AVERROR(EINVAL);
2318 // assert_avoptions(output_files[i]->opts);
2319 if (strcmp(oc->oformat->name, "rtp")) {
2325 /* dump the file output parameters - cannot be done before in case
2327 for (i = 0; i < nb_output_files; i++) {
2328 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2331 /* dump the stream mapping */
2332 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2333 for (i = 0; i < nb_input_streams; i++) {
2334 ist = input_streams[i];
2336 for (j = 0; j < ist->nb_filters; j++) {
2337 if (ist->filters[j]->graph->graph_desc) {
2338 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2339 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2340 ist->filters[j]->name);
2341 if (nb_filtergraphs > 1)
2342 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2343 av_log(NULL, AV_LOG_INFO, "\n");
2348 for (i = 0; i < nb_output_streams; i++) {
2349 ost = output_streams[i];
2351 if (ost->attachment_filename) {
2352 /* an attached file */
2353 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2354 ost->attachment_filename, ost->file_index, ost->index);
2358 if (ost->filter && ost->filter->graph->graph_desc) {
2359 /* output from a complex graph */
2360 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2361 if (nb_filtergraphs > 1)
2362 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2364 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2365 ost->index, ost->enc ? ost->enc->name : "?");
2369 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2370 input_streams[ost->source_index]->file_index,
2371 input_streams[ost->source_index]->st->index,
2374 if (ost->sync_ist != input_streams[ost->source_index])
2375 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2376 ost->sync_ist->file_index,
2377 ost->sync_ist->st->index);
2378 if (ost->stream_copy)
2379 av_log(NULL, AV_LOG_INFO, " (copy)");
2381 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2382 input_streams[ost->source_index]->dec->name : "?",
2383 ost->enc ? ost->enc->name : "?");
2384 av_log(NULL, AV_LOG_INFO, "\n");
2388 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2400 * @return 1 if there are still streams where more output is wanted,
2403 static int need_output(void)
2407 for (i = 0; i < nb_output_streams; i++) {
2408 OutputStream *ost = output_streams[i];
2409 OutputFile *of = output_files[ost->file_index];
2410 AVFormatContext *os = output_files[ost->file_index]->ctx;
2412 if (ost->finished ||
2413 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2415 if (ost->frame_number >= ost->max_frames) {
2417 for (j = 0; j < of->ctx->nb_streams; j++)
2418 close_output_stream(output_streams[of->ost_index + j]);
2429 * Select the output stream to process.
2431 * @return selected output stream, or NULL if none available
2433 static OutputStream *choose_output(void)
2436 int64_t opts_min = INT64_MAX;
2437 OutputStream *ost_min = NULL;
2439 for (i = 0; i < nb_output_streams; i++) {
2440 OutputStream *ost = output_streams[i];
2441 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2443 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2451 static int check_keyboard_interaction(int64_t cur_time)
2454 static int64_t last_time;
2455 if (received_nb_signals)
2456 return AVERROR_EXIT;
2457 /* read_key() returns 0 on EOF */
2458 if(cur_time - last_time >= 100000 && !run_as_daemon){
2460 last_time = cur_time;
2464 return AVERROR_EXIT;
2465 if (key == '+') av_log_set_level(av_log_get_level()+10);
2466 if (key == '-') av_log_set_level(av_log_get_level()-10);
2467 if (key == 's') qp_hist ^= 1;
2470 do_hex_dump = do_pkt_dump = 0;
2471 } else if(do_pkt_dump){
2475 av_log_set_level(AV_LOG_DEBUG);
2477 if (key == 'c' || key == 'C'){
2478 char buf[4096], target[64], command[256], arg[256] = {0};
2481 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2483 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2488 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2489 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2490 target, time, command, arg);
2491 for (i = 0; i < nb_filtergraphs; i++) {
2492 FilterGraph *fg = filtergraphs[i];
2495 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2496 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2497 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2499 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
2504 av_log(NULL, AV_LOG_ERROR,
2505 "Parse error, at least 3 arguments were expected, "
2506 "only %d given in string '%s'\n", n, buf);
2509 if (key == 'd' || key == 'D'){
2512 debug = input_streams[0]->st->codec->debug<<1;
2513 if(!debug) debug = 1;
2514 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2517 if(scanf("%d", &debug)!=1)
2518 fprintf(stderr,"error parsing debug value\n");
2519 for(i=0;i<nb_input_streams;i++) {
2520 input_streams[i]->st->codec->debug = debug;
2522 for(i=0;i<nb_output_streams;i++) {
2523 OutputStream *ost = output_streams[i];
2524 ost->st->codec->debug = debug;
2526 if(debug) av_log_set_level(AV_LOG_DEBUG);
2527 fprintf(stderr,"debug=%d\n", debug);
2530 fprintf(stderr, "key function\n"
2531 "? show this help\n"
2532 "+ increase verbosity\n"
2533 "- decrease verbosity\n"
2534 "c Send command to filtergraph\n"
2535 "D cycle through available debug modes\n"
2536 "h dump packets/hex press to cycle through the 3 states\n"
2538 "s Show QP histogram\n"
2545 static void *input_thread(void *arg)
2550 while (!transcoding_finished && ret >= 0) {
2552 ret = av_read_frame(f->ctx, &pkt);
2554 if (ret == AVERROR(EAGAIN)) {
2561 pthread_mutex_lock(&f->fifo_lock);
2562 while (!av_fifo_space(f->fifo))
2563 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2565 av_dup_packet(&pkt);
2566 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2568 pthread_mutex_unlock(&f->fifo_lock);
2575 static void free_input_threads(void)
2579 if (nb_input_files == 1)
2582 transcoding_finished = 1;
2584 for (i = 0; i < nb_input_files; i++) {
2585 InputFile *f = input_files[i];
2588 if (!f->fifo || f->joined)
2591 pthread_mutex_lock(&f->fifo_lock);
2592 while (av_fifo_size(f->fifo)) {
2593 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2594 av_free_packet(&pkt);
2596 pthread_cond_signal(&f->fifo_cond);
2597 pthread_mutex_unlock(&f->fifo_lock);
2599 pthread_join(f->thread, NULL);
2602 while (av_fifo_size(f->fifo)) {
2603 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2604 av_free_packet(&pkt);
2606 av_fifo_free(f->fifo);
2610 static int init_input_threads(void)
2614 if (nb_input_files == 1)
2617 for (i = 0; i < nb_input_files; i++) {
2618 InputFile *f = input_files[i];
2620 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2621 return AVERROR(ENOMEM);
2623 pthread_mutex_init(&f->fifo_lock, NULL);
2624 pthread_cond_init (&f->fifo_cond, NULL);
2626 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2627 return AVERROR(ret);
2632 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2636 pthread_mutex_lock(&f->fifo_lock);
2638 if (av_fifo_size(f->fifo)) {
2639 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2640 pthread_cond_signal(&f->fifo_cond);
2645 ret = AVERROR(EAGAIN);
2648 pthread_mutex_unlock(&f->fifo_lock);
2654 static int get_input_packet(InputFile *f, AVPacket *pkt)
2657 if (nb_input_files > 1)
2658 return get_input_packet_mt(f, pkt);
2660 return av_read_frame(f->ctx, pkt);
2663 static int got_eagain(void)
2666 for (i = 0; i < nb_output_streams; i++)
2667 if (output_streams[i]->unavailable)
2672 static void reset_eagain(void)
2675 for (i = 0; i < nb_input_files; i++)
2676 input_files[i]->eagain = 0;
2677 for (i = 0; i < nb_output_streams; i++)
2678 output_streams[i]->unavailable = 0;
2683 * - 0 -- one packet was read and processed
2684 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2685 * this function should be called again
2686 * - AVERROR_EOF -- this function should not be called again
2688 static int process_input(int file_index)
2690 InputFile *ifile = input_files[file_index];
2691 AVFormatContext *is;
2697 ret = get_input_packet(ifile, &pkt);
2699 if (ret == AVERROR(EAGAIN)) {
2704 if (ret != AVERROR_EOF) {
2705 print_error(is->filename, ret);
2709 ifile->eof_reached = 1;
2711 for (i = 0; i < ifile->nb_streams; i++) {
2712 ist = input_streams[ifile->ist_index + i];
2713 if (ist->decoding_needed)
2714 output_packet(ist, NULL);
2716 /* mark all outputs that don't go through lavfi as finished */
2717 for (j = 0; j < nb_output_streams; j++) {
2718 OutputStream *ost = output_streams[j];
2720 if (ost->source_index == ifile->ist_index + i &&
2721 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2722 close_output_stream(ost);
2726 return AVERROR(EAGAIN);
2732 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2733 is->streams[pkt.stream_index]);
2735 /* the following test is needed in case new streams appear
2736 dynamically in stream : we ignore them */
2737 if (pkt.stream_index >= ifile->nb_streams) {
2738 report_new_stream(file_index, &pkt);
2739 goto discard_packet;
2742 ist = input_streams[ifile->ist_index + pkt.stream_index];
2744 goto discard_packet;
2746 if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
2747 int64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
2748 int64_t stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
2749 ist->wrap_correction_done = 1;
2751 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2752 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
2753 ist->wrap_correction_done = 0;
2755 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
2756 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
2757 ist->wrap_correction_done = 0;
2761 if (pkt.dts != AV_NOPTS_VALUE)
2762 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2763 if (pkt.pts != AV_NOPTS_VALUE)
2764 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2766 if (pkt.pts != AV_NOPTS_VALUE)
2767 pkt.pts *= ist->ts_scale;
2768 if (pkt.dts != AV_NOPTS_VALUE)
2769 pkt.dts *= ist->ts_scale;
2772 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
2773 "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:%"PRId64"\n",
2774 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
2775 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
2776 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
2777 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
2778 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
2779 input_files[ist->file_index]->ts_offset);
2782 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2784 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2785 int64_t delta = pkt_dts - ist->next_dts;
2786 if (is->iformat->flags & AVFMT_TS_DISCONT) {
2787 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2788 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2789 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2790 pkt_dts+1<ist->pts){
2791 ifile->ts_offset -= delta;
2792 av_log(NULL, AV_LOG_DEBUG,
2793 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2794 delta, ifile->ts_offset);
2795 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2796 if (pkt.pts != AV_NOPTS_VALUE)
2797 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2800 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2801 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2803 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
2804 pkt.dts = AV_NOPTS_VALUE;
2806 if (pkt.pts != AV_NOPTS_VALUE){
2807 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
2808 delta = pkt_pts - ist->next_dts;
2809 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
2810 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
2812 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
2813 pkt.pts = AV_NOPTS_VALUE;
2819 sub2video_heartbeat(ist, pkt.pts);
2821 ret = output_packet(ist, &pkt);
2824 av_strerror(ret, buf, sizeof(buf));
2825 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
2826 ist->file_index, ist->st->index, buf);
2832 av_free_packet(&pkt);
2838 * Perform a step of transcoding for the specified filter graph.
2840 * @param[in] graph filter graph to consider
2841 * @param[out] best_ist input stream where a frame would allow to continue
2842 * @return 0 for success, <0 for error
2844 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
2847 int nb_requests, nb_requests_max = 0;
2848 InputFilter *ifilter;
2852 ret = avfilter_graph_request_oldest(graph->graph);
2854 return reap_filters();
2856 if (ret == AVERROR_EOF) {
2857 ret = reap_filters();
2858 for (i = 0; i < graph->nb_outputs; i++)
2859 close_output_stream(graph->outputs[i]->ost);
2862 if (ret != AVERROR(EAGAIN))
2865 for (i = 0; i < graph->nb_inputs; i++) {
2866 ifilter = graph->inputs[i];
2868 if (input_files[ist->file_index]->eagain ||
2869 input_files[ist->file_index]->eof_reached)
2871 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
2872 if (nb_requests > nb_requests_max) {
2873 nb_requests_max = nb_requests;
2879 for (i = 0; i < graph->nb_outputs; i++)
2880 graph->outputs[i]->ost->unavailable = 1;
2886 * Run a single step of transcoding.
2888 * @return 0 for success, <0 for error
2890 static int transcode_step(void)
2896 ost = choose_output();
2903 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2908 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
2913 av_assert0(ost->source_index >= 0);
2914 ist = input_streams[ost->source_index];
2917 ret = process_input(ist->file_index);
2918 if (ret == AVERROR(EAGAIN)) {
2919 if (input_files[ist->file_index]->eagain)
2920 ost->unavailable = 1;
2924 return ret == AVERROR_EOF ? 0 : ret;
2926 return reap_filters();
2930 * The following code is the main loop of the file converter
2932 static int transcode(void)
2935 AVFormatContext *os;
2938 int64_t timer_start;
2940 ret = transcode_init();
2944 if (stdin_interaction) {
2945 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2948 timer_start = av_gettime();
2951 if ((ret = init_input_threads()) < 0)
2955 while (!received_sigterm) {
2956 int64_t cur_time= av_gettime();
2958 /* if 'q' pressed, exits */
2959 if (stdin_interaction)
2960 if (check_keyboard_interaction(cur_time) < 0)
2963 /* check if there's any stream where output is still needed */
2964 if (!need_output()) {
2965 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2969 ret = transcode_step();
2971 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2974 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2978 /* dump report by using the output first video and audio streams */
2979 print_report(0, timer_start, cur_time);
2982 free_input_threads();
2985 /* at the end of stream, we must flush the decoder buffers */
2986 for (i = 0; i < nb_input_streams; i++) {
2987 ist = input_streams[i];
2988 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2989 output_packet(ist, NULL);
2996 /* write the trailer if needed and close file */
2997 for (i = 0; i < nb_output_files; i++) {
2998 os = output_files[i]->ctx;
2999 av_write_trailer(os);
3002 /* dump report by using the first video and audio streams */
3003 print_report(1, timer_start, av_gettime());
3005 /* close each encoder */
3006 for (i = 0; i < nb_output_streams; i++) {
3007 ost = output_streams[i];
3008 if (ost->encoding_needed) {
3009 av_freep(&ost->st->codec->stats_in);
3010 avcodec_close(ost->st->codec);
3014 /* close each decoder */
3015 for (i = 0; i < nb_input_streams; i++) {
3016 ist = input_streams[i];
3017 if (ist->decoding_needed) {
3018 avcodec_close(ist->st->codec);
3027 free_input_threads();
3030 if (output_streams) {
3031 for (i = 0; i < nb_output_streams; i++) {
3032 ost = output_streams[i];
3034 if (ost->stream_copy)
3035 av_freep(&ost->st->codec->extradata);
3037 fclose(ost->logfile);
3038 ost->logfile = NULL;
3040 av_freep(&ost->st->codec->subtitle_header);
3041 av_free(ost->forced_kf_pts);
3042 av_dict_free(&ost->opts);
3050 static int64_t getutime(void)
3053 struct rusage rusage;
3055 getrusage(RUSAGE_SELF, &rusage);
3056 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3057 #elif HAVE_GETPROCESSTIMES
3059 FILETIME c, e, k, u;
3060 proc = GetCurrentProcess();
3061 GetProcessTimes(proc, &c, &e, &k, &u);
3062 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3064 return av_gettime();
3068 static int64_t getmaxrss(void)
3070 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3071 struct rusage rusage;
3072 getrusage(RUSAGE_SELF, &rusage);
3073 return (int64_t)rusage.ru_maxrss * 1024;
3074 #elif HAVE_GETPROCESSMEMORYINFO
3076 PROCESS_MEMORY_COUNTERS memcounters;
3077 proc = GetCurrentProcess();
3078 memcounters.cb = sizeof(memcounters);
3079 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3080 return memcounters.PeakPagefileUsage;
3086 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3090 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
3092 int idx = locate_option(argc, argv, options, "cpuflags");
3093 if (idx && argv[idx + 1])
3094 opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
3097 int main(int argc, char **argv)
3099 OptionsContext o = { 0 };
3102 reset_options(&o, 0);
3104 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3105 parse_loglevel(argc, argv, options);
3107 if(argc>1 && !strcmp(argv[1], "-d")){
3109 av_log_set_callback(log_callback_null);
3114 avcodec_register_all();
3116 avdevice_register_all();
3118 avfilter_register_all();
3120 avformat_network_init();
3122 show_banner(argc, argv, options);
3126 parse_cpuflags(argc, argv, options);
3129 parse_options(&o, argc, argv, options, opt_output_file);
3131 if (nb_output_files <= 0 && nb_input_files == 0) {
3133 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3137 /* file converter / grab */
3138 if (nb_output_files <= 0) {
3139 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3143 // if (nb_input_files == 0) {
3144 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3148 current_time = ti = getutime();
3149 if (transcode() < 0)
3151 ti = getutime() - ti;
3153 int maxrss = getmaxrss() / 1024;
3154 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);