2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
46 #include "libswresample/swresample.h"
47 #include "libavutil/opt.h"
48 #include "libavutil/channel_layout.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/samplefmt.h"
51 #include "libavutil/fifo.h"
52 #include "libavutil/intreadwrite.h"
53 #include "libavutil/dict.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/pixdesc.h"
56 #include "libavutil/avstring.h"
57 #include "libavutil/libm.h"
58 #include "libavutil/imgutils.h"
59 #include "libavutil/timestamp.h"
60 #include "libavutil/bprint.h"
61 #include "libavutil/time.h"
62 #include "libavformat/os_support.h"
64 #include "libavformat/ffm.h" // not public API
66 # include "libavfilter/avcodec.h"
67 # include "libavfilter/avfilter.h"
68 # include "libavfilter/buffersrc.h"
69 # include "libavfilter/buffersink.h"
71 #if HAVE_SYS_RESOURCE_H
73 #include <sys/types.h>
74 #include <sys/resource.h>
75 #elif HAVE_GETPROCESSTIMES
78 #if HAVE_GETPROCESSMEMORYINFO
84 #include <sys/select.h>
89 #include <sys/ioctl.h>
103 #include "cmdutils.h"
105 #include "libavutil/avassert.h"
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 static FILE *vstats_file;
112 const char *const forced_keyframes_const_names[] = {
121 static void do_video_stats(OutputStream *ost, int frame_size);
122 static int64_t getutime(void);
123 static int64_t getmaxrss(void);
125 static int run_as_daemon = 0;
126 static int nb_frames_dup = 0;
127 static int nb_frames_drop = 0;
128 static int64_t decode_error_stat[2];
130 static int current_time;
131 AVIOContext *progress_avio = NULL;
133 static uint8_t *subtitle_out;
136 /* signal to input threads that they should exit; set by the main thread */
137 static int transcoding_finished;
140 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
142 InputStream **input_streams = NULL;
143 int nb_input_streams = 0;
144 InputFile **input_files = NULL;
145 int nb_input_files = 0;
147 OutputStream **output_streams = NULL;
148 int nb_output_streams = 0;
149 OutputFile **output_files = NULL;
150 int nb_output_files = 0;
152 FilterGraph **filtergraphs;
157 /* init terminal so that we can grab keys */
158 static struct termios oldtty;
159 static int restore_tty;
162 static void free_input_threads(void);
166 Convert subtitles to video with alpha to insert them in filter graphs.
167 This is a temporary solution until libavfilter gets real subtitles support.
170 static int sub2video_get_blank_frame(InputStream *ist)
173 AVFrame *frame = ist->sub2video.frame;
175 av_frame_unref(frame);
176 ist->sub2video.frame->width = ist->sub2video.w;
177 ist->sub2video.frame->height = ist->sub2video.h;
178 ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
179 if ((ret = av_frame_get_buffer(frame, 32)) < 0)
181 memset(frame->data[0], 0, frame->height * frame->linesize[0]);
185 static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
188 uint32_t *pal, *dst2;
192 if (r->type != SUBTITLE_BITMAP) {
193 av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
196 if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
197 av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
201 dst += r->y * dst_linesize + r->x * 4;
202 src = r->pict.data[0];
203 pal = (uint32_t *)r->pict.data[1];
204 for (y = 0; y < r->h; y++) {
205 dst2 = (uint32_t *)dst;
207 for (x = 0; x < r->w; x++)
208 *(dst2++) = pal[*(src2++)];
210 src += r->pict.linesize[0];
214 static void sub2video_push_ref(InputStream *ist, int64_t pts)
216 AVFrame *frame = ist->sub2video.frame;
219 av_assert1(frame->data[0]);
220 ist->sub2video.last_pts = frame->pts = pts;
221 for (i = 0; i < ist->nb_filters; i++)
222 av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
223 AV_BUFFERSRC_FLAG_KEEP_REF |
224 AV_BUFFERSRC_FLAG_PUSH);
227 static void sub2video_update(InputStream *ist, AVSubtitle *sub)
229 int w = ist->sub2video.w, h = ist->sub2video.h;
230 AVFrame *frame = ist->sub2video.frame;
234 int64_t pts, end_pts;
239 pts = av_rescale_q(sub->pts + sub->start_display_time * 1000,
240 AV_TIME_BASE_Q, ist->st->time_base);
241 end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000,
242 AV_TIME_BASE_Q, ist->st->time_base);
243 num_rects = sub->num_rects;
245 pts = ist->sub2video.end_pts;
249 if (sub2video_get_blank_frame(ist) < 0) {
250 av_log(ist->st->codec, AV_LOG_ERROR,
251 "Impossible to get a blank canvas.\n");
254 dst = frame->data [0];
255 dst_linesize = frame->linesize[0];
256 for (i = 0; i < num_rects; i++)
257 sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
258 sub2video_push_ref(ist, pts);
259 ist->sub2video.end_pts = end_pts;
262 static void sub2video_heartbeat(InputStream *ist, int64_t pts)
264 InputFile *infile = input_files[ist->file_index];
268 /* When a frame is read from a file, examine all sub2video streams in
269 the same file and send the sub2video frame again. Otherwise, decoded
270 video frames could be accumulating in the filter graph while a filter
271 (possibly overlay) is desperately waiting for a subtitle frame. */
272 for (i = 0; i < infile->nb_streams; i++) {
273 InputStream *ist2 = input_streams[infile->ist_index + i];
274 if (!ist2->sub2video.frame)
276 /* subtitles seem to be usually muxed ahead of other streams;
277 if not, substracting a larger time here is necessary */
278 pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
279 /* do not send the heartbeat frame if the subtitle is already ahead */
280 if (pts2 <= ist2->sub2video.last_pts)
282 if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
283 sub2video_update(ist2, NULL);
284 for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
285 nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
287 sub2video_push_ref(ist2, pts2);
291 static void sub2video_flush(InputStream *ist)
295 if (ist->sub2video.end_pts < INT64_MAX)
296 sub2video_update(ist, NULL);
297 for (i = 0; i < ist->nb_filters; i++)
298 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
301 /* end of sub2video hack */
303 static void term_exit_sigsafe(void)
307 tcsetattr (0, TCSANOW, &oldtty);
313 av_log(NULL, AV_LOG_QUIET, "%s", "");
317 static volatile int received_sigterm = 0;
318 static volatile int received_nb_signals = 0;
319 static volatile int transcode_init_done = 0;
320 static int main_return_code = 0;
323 sigterm_handler(int sig)
325 received_sigterm = sig;
326 received_nb_signals++;
328 if(received_nb_signals > 3)
339 istty = isatty(0) && isatty(2);
341 if (istty && tcgetattr (0, &tty) == 0) {
345 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
346 |INLCR|IGNCR|ICRNL|IXON);
347 tty.c_oflag |= OPOST;
348 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
349 tty.c_cflag &= ~(CSIZE|PARENB);
354 tcsetattr (0, TCSANOW, &tty);
356 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
359 avformat_network_deinit();
361 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
362 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
364 signal(SIGXCPU, sigterm_handler);
368 /* read a key without blocking */
369 static int read_key(void)
381 n = select(1, &rfds, NULL, NULL, &tv);
390 # if HAVE_PEEKNAMEDPIPE
392 static HANDLE input_handle;
395 input_handle = GetStdHandle(STD_INPUT_HANDLE);
396 is_pipe = !GetConsoleMode(input_handle, &dw);
399 if (stdin->_cnt > 0) {
404 /* When running under a GUI, you will end here. */
405 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
406 // input pipe may have been closed by the program that ran ffmpeg
424 static int decode_interrupt_cb(void *ctx)
426 return received_nb_signals > transcode_init_done;
429 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
431 static void ffmpeg_cleanup(int ret)
436 int maxrss = getmaxrss() / 1024;
437 printf("bench: maxrss=%ikB\n", maxrss);
440 for (i = 0; i < nb_filtergraphs; i++) {
441 avfilter_graph_free(&filtergraphs[i]->graph);
442 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
443 av_freep(&filtergraphs[i]->inputs[j]->name);
444 av_freep(&filtergraphs[i]->inputs[j]);
446 av_freep(&filtergraphs[i]->inputs);
447 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
448 av_freep(&filtergraphs[i]->outputs[j]->name);
449 av_freep(&filtergraphs[i]->outputs[j]);
451 av_freep(&filtergraphs[i]->outputs);
452 av_freep(&filtergraphs[i]->graph_desc);
453 av_freep(&filtergraphs[i]);
455 av_freep(&filtergraphs);
457 av_freep(&subtitle_out);
460 for (i = 0; i < nb_output_files; i++) {
461 AVFormatContext *s = output_files[i]->ctx;
462 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
464 avformat_free_context(s);
465 av_dict_free(&output_files[i]->opts);
466 av_freep(&output_files[i]);
468 for (i = 0; i < nb_output_streams; i++) {
469 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
471 AVBitStreamFilterContext *next = bsfc->next;
472 av_bitstream_filter_close(bsfc);
475 output_streams[i]->bitstream_filters = NULL;
476 av_frame_free(&output_streams[i]->filtered_frame);
478 av_parser_close(output_streams[i]->parser);
480 av_freep(&output_streams[i]->forced_keyframes);
481 av_expr_free(output_streams[i]->forced_keyframes_pexpr);
482 av_freep(&output_streams[i]->avfilter);
483 av_freep(&output_streams[i]->logfile_prefix);
484 av_freep(&output_streams[i]);
487 free_input_threads();
489 for (i = 0; i < nb_input_files; i++) {
490 avformat_close_input(&input_files[i]->ctx);
491 av_freep(&input_files[i]);
493 for (i = 0; i < nb_input_streams; i++) {
494 av_frame_free(&input_streams[i]->decoded_frame);
495 av_frame_free(&input_streams[i]->filter_frame);
496 av_dict_free(&input_streams[i]->opts);
497 avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
498 av_frame_free(&input_streams[i]->sub2video.frame);
499 av_freep(&input_streams[i]->filters);
500 av_freep(&input_streams[i]->hwaccel_device);
501 av_freep(&input_streams[i]);
506 av_free(vstats_filename);
508 av_freep(&input_streams);
509 av_freep(&input_files);
510 av_freep(&output_streams);
511 av_freep(&output_files);
515 avformat_network_deinit();
517 if (received_sigterm) {
518 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
519 (int) received_sigterm);
524 void assert_avoptions(AVDictionary *m)
526 AVDictionaryEntry *t;
527 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
528 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
533 static void abort_codec_experimental(AVCodec *c, int encoder)
538 static void update_benchmark(const char *fmt, ...)
540 if (do_benchmark_all) {
541 int64_t t = getutime();
547 vsnprintf(buf, sizeof(buf), fmt, va);
549 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
555 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
558 for (i = 0; i < nb_output_streams; i++) {
559 OutputStream *ost2 = output_streams[i];
560 ost2->finished |= ost == ost2 ? this_stream : others;
564 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
566 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
567 AVCodecContext *avctx = ost->st->codec;
570 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
571 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
572 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
575 * Audio encoders may split the packets -- #frames in != #packets out.
576 * But there is no reordering, so we can limit the number of output packets
577 * by simply dropping them here.
578 * Counting encoded video frames needs to be done separately because of
579 * reordering, see do_video_out()
581 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
582 if (ost->frame_number >= ost->max_frames) {
590 AVPacket new_pkt = *pkt;
591 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
592 &new_pkt.data, &new_pkt.size,
593 pkt->data, pkt->size,
594 pkt->flags & AV_PKT_FLAG_KEY);
595 if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
596 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
598 memcpy(t, new_pkt.data, new_pkt.size);
599 memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
608 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
609 av_buffer_default_free, NULL, 0);
613 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
614 bsfc->filter->name, pkt->stream_index,
615 avctx->codec ? avctx->codec->name : "copy");
625 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
626 (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
627 pkt->dts != AV_NOPTS_VALUE &&
628 ost->last_mux_dts != AV_NOPTS_VALUE) {
629 int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
630 if (pkt->dts < max) {
631 int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
632 av_log(s, loglevel, "Non-monotonous DTS in output stream "
633 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
634 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
636 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
639 av_log(s, loglevel, "changing to %"PRId64". This may result "
640 "in incorrect timestamps in the output file.\n",
642 if(pkt->pts >= pkt->dts)
643 pkt->pts = FFMAX(pkt->pts, max);
647 ost->last_mux_dts = pkt->dts;
649 ost->data_size += pkt->size;
650 ost->packets_written++;
652 pkt->stream_index = ost->index;
655 av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
656 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
657 av_get_media_type_string(ost->st->codec->codec_type),
658 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
659 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
664 ret = av_interleaved_write_frame(s, pkt);
666 print_error("av_interleaved_write_frame()", ret);
667 main_return_code = 1;
668 close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
673 static void close_output_stream(OutputStream *ost)
675 OutputFile *of = output_files[ost->file_index];
677 ost->finished |= ENCODER_FINISHED;
679 int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
680 of->recording_time = FFMIN(of->recording_time, end);
684 static int check_recording_time(OutputStream *ost)
686 OutputFile *of = output_files[ost->file_index];
688 if (of->recording_time != INT64_MAX &&
689 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
690 AV_TIME_BASE_Q) >= 0) {
691 close_output_stream(ost);
697 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
700 AVCodecContext *enc = ost->st->codec;
704 av_init_packet(&pkt);
708 if (!check_recording_time(ost))
711 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
712 frame->pts = ost->sync_opts;
713 ost->sync_opts = frame->pts + frame->nb_samples;
714 ost->samples_encoded += frame->nb_samples;
715 ost->frames_encoded++;
717 av_assert0(pkt.size || !pkt.data);
718 update_benchmark(NULL);
720 av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
721 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
722 av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
723 enc->time_base.num, enc->time_base.den);
726 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
727 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
730 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
733 if (pkt.pts != AV_NOPTS_VALUE)
734 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
735 if (pkt.dts != AV_NOPTS_VALUE)
736 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
737 if (pkt.duration > 0)
738 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
741 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
742 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
743 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
744 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
747 write_frame(s, &pkt, ost);
751 static void do_subtitle_out(AVFormatContext *s,
756 int subtitle_out_max_size = 1024 * 1024;
757 int subtitle_out_size, nb, i;
762 if (sub->pts == AV_NOPTS_VALUE) {
763 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
769 enc = ost->st->codec;
772 subtitle_out = av_malloc(subtitle_out_max_size);
775 /* Note: DVB subtitle need one packet to draw them and one other
776 packet to clear them */
777 /* XXX: signal it in the codec context ? */
778 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
783 /* shift timestamp to honor -ss and make check_recording_time() work with -t */
785 if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
786 pts -= output_files[ost->file_index]->start_time;
787 for (i = 0; i < nb; i++) {
788 ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
789 if (!check_recording_time(ost))
793 // start_display_time is required to be 0
794 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
795 sub->end_display_time -= sub->start_display_time;
796 sub->start_display_time = 0;
800 ost->frames_encoded++;
802 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
803 subtitle_out_max_size, sub);
804 if (subtitle_out_size < 0) {
805 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
809 av_init_packet(&pkt);
810 pkt.data = subtitle_out;
811 pkt.size = subtitle_out_size;
812 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
813 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
814 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
815 /* XXX: the pts correction is handled here. Maybe handling
816 it in the codec would be better */
818 pkt.pts += 90 * sub->start_display_time;
820 pkt.pts += 90 * sub->end_display_time;
822 write_frame(s, &pkt, ost);
826 static void do_video_out(AVFormatContext *s,
830 int ret, format_video_sync;
832 AVCodecContext *enc = ost->st->codec;
834 double sync_ipts, delta;
837 InputStream *ist = NULL;
839 if (ost->source_index >= 0)
840 ist = input_streams[ost->source_index];
842 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
843 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
845 sync_ipts = in_picture->pts;
846 delta = sync_ipts - ost->sync_opts + duration;
848 /* by default, we output a single frame */
851 format_video_sync = video_sync_method;
852 if (format_video_sync == VSYNC_AUTO) {
853 if(!strcmp(s->oformat->name, "avi")) {
854 format_video_sync = VSYNC_VFR;
856 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
858 && format_video_sync == VSYNC_CFR
859 && input_files[ist->file_index]->ctx->nb_streams == 1
860 && input_files[ist->file_index]->input_ts_offset == 0) {
861 format_video_sync = VSYNC_VSCFR;
863 if (format_video_sync == VSYNC_CFR && copy_ts) {
864 format_video_sync = VSYNC_VSCFR;
868 switch (format_video_sync) {
870 if (ost->frame_number == 0 && delta - duration >= 0.5) {
871 av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
873 ost->sync_opts = lrint(sync_ipts);
876 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
879 else if (delta > 1.1)
880 nb_frames = lrintf(delta);
885 else if (delta > 0.6)
886 ost->sync_opts = lrint(sync_ipts);
889 case VSYNC_PASSTHROUGH:
890 ost->sync_opts = lrint(sync_ipts);
896 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
897 if (nb_frames == 0) {
899 av_log(NULL, AV_LOG_VERBOSE,
900 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
901 ost->frame_number, ost->st->index, in_picture->pts);
903 } else if (nb_frames > 1) {
904 if (nb_frames > dts_error_threshold * 30) {
905 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
909 nb_frames_dup += nb_frames - 1;
910 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
913 /* duplicates frame if needed */
914 for (i = 0; i < nb_frames; i++) {
915 av_init_packet(&pkt);
919 in_picture->pts = ost->sync_opts;
922 if (!check_recording_time(ost))
924 if (ost->frame_number >= ost->max_frames)
928 if (s->oformat->flags & AVFMT_RAWPICTURE &&
929 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
930 /* raw pictures are written as AVPicture structure to
931 avoid any copies. We support temporarily the older
933 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
934 enc->coded_frame->top_field_first = in_picture->top_field_first;
935 if (enc->coded_frame->interlaced_frame)
936 enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
938 enc->field_order = AV_FIELD_PROGRESSIVE;
939 pkt.data = (uint8_t *)in_picture;
940 pkt.size = sizeof(AVPicture);
941 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
942 pkt.flags |= AV_PKT_FLAG_KEY;
944 write_frame(s, &pkt, ost);
946 int got_packet, forced_keyframe = 0;
949 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
950 ost->top_field_first >= 0)
951 in_picture->top_field_first = !!ost->top_field_first;
953 if (in_picture->interlaced_frame) {
954 if (enc->codec->id == AV_CODEC_ID_MJPEG)
955 enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
957 enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
959 enc->field_order = AV_FIELD_PROGRESSIVE;
961 in_picture->quality = ost->st->codec->global_quality;
962 if (!enc->me_threshold)
963 in_picture->pict_type = 0;
965 pts_time = in_picture->pts != AV_NOPTS_VALUE ?
966 in_picture->pts * av_q2d(enc->time_base) : NAN;
967 if (ost->forced_kf_index < ost->forced_kf_count &&
968 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
969 ost->forced_kf_index++;
971 } else if (ost->forced_keyframes_pexpr) {
973 ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
974 res = av_expr_eval(ost->forced_keyframes_pexpr,
975 ost->forced_keyframes_expr_const_values, NULL);
976 av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
977 ost->forced_keyframes_expr_const_values[FKF_N],
978 ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
979 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
980 ost->forced_keyframes_expr_const_values[FKF_T],
981 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
985 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
986 ost->forced_keyframes_expr_const_values[FKF_N];
987 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
988 ost->forced_keyframes_expr_const_values[FKF_T];
989 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
992 ost->forced_keyframes_expr_const_values[FKF_N] += 1;
995 if (forced_keyframe) {
996 in_picture->pict_type = AV_PICTURE_TYPE_I;
997 av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
1000 update_benchmark(NULL);
1002 av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
1003 "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
1004 av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
1005 enc->time_base.num, enc->time_base.den);
1008 ost->frames_encoded++;
1010 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
1011 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1013 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1019 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1020 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1021 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
1022 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
1025 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1026 pkt.pts = ost->sync_opts;
1028 if (pkt.pts != AV_NOPTS_VALUE)
1029 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1030 if (pkt.dts != AV_NOPTS_VALUE)
1031 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1034 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1035 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1036 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1037 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1040 frame_size = pkt.size;
1041 write_frame(s, &pkt, ost);
1043 /* if two pass, output log */
1044 if (ost->logfile && enc->stats_out) {
1045 fprintf(ost->logfile, "%s", enc->stats_out);
1051 * For video, number of frames in == number of packets out.
1052 * But there may be reordering, so we can't throw away frames on encoder
1053 * flush, we need to limit them here, before they go into encoder.
1055 ost->frame_number++;
1057 if (vstats_filename && frame_size)
1058 do_video_stats(ost, frame_size);
1062 static double psnr(double d)
1064 return -10.0 * log(d) / log(10.0);
1067 static void do_video_stats(OutputStream *ost, int frame_size)
1069 AVCodecContext *enc;
1071 double ti1, bitrate, avg_bitrate;
1073 /* this is executed just the first time do_video_stats is called */
1075 vstats_file = fopen(vstats_filename, "w");
1082 enc = ost->st->codec;
1083 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1084 frame_number = ost->st->nb_frames;
1085 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1086 if (enc->flags&CODEC_FLAG_PSNR)
1087 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1089 fprintf(vstats_file,"f_size= %6d ", frame_size);
1090 /* compute pts value */
1091 ti1 = ost->st->pts.val * av_q2d(enc->time_base);
1095 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1096 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
1097 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1098 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
1099 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1104 * Get and encode new output from any of the filtergraphs, without causing
1107 * @return 0 for success, <0 for severe errors
1109 static int reap_filters(void)
1111 AVFrame *filtered_frame = NULL;
1115 /* Reap all buffers present in the buffer sinks */
1116 for (i = 0; i < nb_output_streams; i++) {
1117 OutputStream *ost = output_streams[i];
1118 OutputFile *of = output_files[ost->file_index];
1119 AVFilterContext *filter;
1120 AVCodecContext *enc = ost->st->codec;
1125 filter = ost->filter->filter;
1127 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
1128 return AVERROR(ENOMEM);
1130 filtered_frame = ost->filtered_frame;
1133 ret = av_buffersink_get_frame_flags(filter, filtered_frame,
1134 AV_BUFFERSINK_FLAG_NO_REQUEST);
1136 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1137 av_log(NULL, AV_LOG_WARNING,
1138 "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
1142 if (ost->finished) {
1143 av_frame_unref(filtered_frame);
1146 frame_pts = AV_NOPTS_VALUE;
1147 if (filtered_frame->pts != AV_NOPTS_VALUE) {
1148 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1149 filtered_frame->pts = frame_pts =
1150 av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
1151 av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
1153 //if (ost->source_index >= 0)
1154 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1156 switch (filter->inputs[0]->type) {
1157 case AVMEDIA_TYPE_VIDEO:
1158 filtered_frame->pts = frame_pts;
1159 if (!ost->frame_aspect_ratio.num)
1160 enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
1163 av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
1164 av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
1165 enc->time_base.num, enc->time_base.den);
1168 do_video_out(of->ctx, ost, filtered_frame);
1170 case AVMEDIA_TYPE_AUDIO:
1171 filtered_frame->pts = frame_pts;
1172 if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
1173 enc->channels != av_frame_get_channels(filtered_frame)) {
1174 av_log(NULL, AV_LOG_ERROR,
1175 "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
1178 do_audio_out(of->ctx, ost, filtered_frame);
1181 // TODO support subtitle filters
1185 av_frame_unref(filtered_frame);
1192 static void print_final_stats(int64_t total_size)
1194 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
1195 uint64_t subtitle_size = 0;
1196 uint64_t data_size = 0;
1197 float percent = -1.0;
1200 for (i = 0; i < nb_output_streams; i++) {
1201 OutputStream *ost = output_streams[i];
1202 switch (ost->st->codec->codec_type) {
1203 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
1204 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
1205 case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
1206 default: other_size += ost->data_size; break;
1208 extra_size += ost->st->codec->extradata_size;
1209 data_size += ost->data_size;
1212 if (data_size && total_size >= data_size)
1213 percent = 100.0 * (total_size - data_size) / data_size;
1215 av_log(NULL, AV_LOG_INFO, "\n");
1216 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
1217 video_size / 1024.0,
1218 audio_size / 1024.0,
1219 subtitle_size / 1024.0,
1220 other_size / 1024.0,
1221 extra_size / 1024.0);
1223 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
1225 av_log(NULL, AV_LOG_INFO, "unknown");
1226 av_log(NULL, AV_LOG_INFO, "\n");
1228 /* print verbose per-stream stats */
1229 for (i = 0; i < nb_input_files; i++) {
1230 InputFile *f = input_files[i];
1231 uint64_t total_packets = 0, total_size = 0;
1233 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
1234 i, f->ctx->filename);
1236 for (j = 0; j < f->nb_streams; j++) {
1237 InputStream *ist = input_streams[f->ist_index + j];
1238 enum AVMediaType type = ist->st->codec->codec_type;
1240 total_size += ist->data_size;
1241 total_packets += ist->nb_packets;
1243 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
1244 i, j, media_type_string(type));
1245 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
1246 ist->nb_packets, ist->data_size);
1248 if (ist->decoding_needed) {
1249 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
1250 ist->frames_decoded);
1251 if (type == AVMEDIA_TYPE_AUDIO)
1252 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
1253 av_log(NULL, AV_LOG_VERBOSE, "; ");
1256 av_log(NULL, AV_LOG_VERBOSE, "\n");
1259 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
1260 total_packets, total_size);
1263 for (i = 0; i < nb_output_files; i++) {
1264 OutputFile *of = output_files[i];
1265 uint64_t total_packets = 0, total_size = 0;
1267 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
1268 i, of->ctx->filename);
1270 for (j = 0; j < of->ctx->nb_streams; j++) {
1271 OutputStream *ost = output_streams[of->ost_index + j];
1272 enum AVMediaType type = ost->st->codec->codec_type;
1274 total_size += ost->data_size;
1275 total_packets += ost->packets_written;
1277 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
1278 i, j, media_type_string(type));
1279 if (ost->encoding_needed) {
1280 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
1281 ost->frames_encoded);
1282 if (type == AVMEDIA_TYPE_AUDIO)
1283 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
1284 av_log(NULL, AV_LOG_VERBOSE, "; ");
1287 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
1288 ost->packets_written, ost->data_size);
1290 av_log(NULL, AV_LOG_VERBOSE, "\n");
1293 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
1294 total_packets, total_size);
1296 if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
1297 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1301 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
1304 AVBPrint buf_script;
1306 AVFormatContext *oc;
1308 AVCodecContext *enc;
1309 int frame_number, vid, i;
1311 int64_t pts = INT64_MIN;
1312 static int64_t last_time = -1;
1313 static int qp_histogram[52];
1314 int hours, mins, secs, us;
1316 if (!print_stats && !is_last_report && !progress_avio)
1319 if (!is_last_report) {
1320 if (last_time == -1) {
1321 last_time = cur_time;
1324 if ((cur_time - last_time) < 500000)
1326 last_time = cur_time;
1330 oc = output_files[0]->ctx;
1332 total_size = avio_size(oc->pb);
1333 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
1334 total_size = avio_tell(oc->pb);
1338 av_bprint_init(&buf_script, 0, 1);
1339 for (i = 0; i < nb_output_streams; i++) {
1341 ost = output_streams[i];
1342 enc = ost->st->codec;
1343 if (!ost->stream_copy && enc->coded_frame)
1344 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1345 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1346 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1347 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1348 ost->file_index, ost->index, q);
1350 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1351 float fps, t = (cur_time-timer_start) / 1000000.0;
1353 frame_number = ost->frame_number;
1354 fps = t > 1 ? frame_number / t : 0;
1355 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
1356 frame_number, fps < 9.95, fps, q);
1357 av_bprintf(&buf_script, "frame=%d\n", frame_number);
1358 av_bprintf(&buf_script, "fps=%.1f\n", fps);
1359 av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
1360 ost->file_index, ost->index, q);
1362 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1366 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1368 for (j = 0; j < 32; j++)
1369 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
1371 if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
1373 double error, error_sum = 0;
1374 double scale, scale_sum = 0;
1376 char type[3] = { 'Y','U','V' };
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1378 for (j = 0; j < 3; j++) {
1379 if (is_last_report) {
1380 error = enc->error[j];
1381 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1383 error = enc->coded_frame->error[j];
1384 scale = enc->width * enc->height * 255.0 * 255.0;
1390 p = psnr(error / scale);
1391 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
1392 av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
1393 ost->file_index, ost->index, type[j] | 32, p);
1395 p = psnr(error_sum / scale_sum);
1396 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1397 av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
1398 ost->file_index, ost->index, p);
1402 /* compute min output value */
1403 if (ost->st->pts.val != AV_NOPTS_VALUE)
1404 pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
1405 ost->st->time_base, AV_TIME_BASE_Q));
1408 secs = pts / AV_TIME_BASE;
1409 us = pts % AV_TIME_BASE;
1415 bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
1417 if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1419 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1420 "size=%8.0fkB time=", total_size / 1024.0);
1421 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1422 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1423 (100 * us) / AV_TIME_BASE);
1424 if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1426 else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1427 "bitrate=%6.1fkbits/s", bitrate);
1428 if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
1429 else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
1430 av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
1431 av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
1432 hours, mins, secs, us);
1434 if (nb_frames_dup || nb_frames_drop)
1435 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1436 nb_frames_dup, nb_frames_drop);
1437 av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
1438 av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
1440 if (print_stats || is_last_report) {
1441 if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
1442 fprintf(stderr, "%s \r", buf);
1444 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1449 if (progress_avio) {
1450 av_bprintf(&buf_script, "progress=%s\n",
1451 is_last_report ? "end" : "continue");
1452 avio_write(progress_avio, buf_script.str,
1453 FFMIN(buf_script.len, buf_script.size - 1));
1454 avio_flush(progress_avio);
1455 av_bprint_finalize(&buf_script, NULL);
1456 if (is_last_report) {
1457 avio_close(progress_avio);
1458 progress_avio = NULL;
1463 print_final_stats(total_size);
1466 static void flush_encoders(void)
1470 for (i = 0; i < nb_output_streams; i++) {
1471 OutputStream *ost = output_streams[i];
1472 AVCodecContext *enc = ost->st->codec;
1473 AVFormatContext *os = output_files[ost->file_index]->ctx;
1474 int stop_encoding = 0;
1476 if (!ost->encoding_needed)
1479 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1481 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1485 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1488 switch (ost->st->codec->codec_type) {
1489 case AVMEDIA_TYPE_AUDIO:
1490 encode = avcodec_encode_audio2;
1493 case AVMEDIA_TYPE_VIDEO:
1494 encode = avcodec_encode_video2;
1505 av_init_packet(&pkt);
1509 update_benchmark(NULL);
1510 ret = encode(enc, &pkt, NULL, &got_packet);
1511 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
1513 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1516 if (ost->logfile && enc->stats_out) {
1517 fprintf(ost->logfile, "%s", enc->stats_out);
1523 if (ost->finished & MUXER_FINISHED) {
1524 av_free_packet(&pkt);
1527 if (pkt.pts != AV_NOPTS_VALUE)
1528 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1529 if (pkt.dts != AV_NOPTS_VALUE)
1530 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1531 if (pkt.duration > 0)
1532 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1533 pkt_size = pkt.size;
1534 write_frame(os, &pkt, ost);
1535 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
1536 do_video_stats(ost, pkt_size);
1547 * Check whether a packet from ist should be written into ost at this time
1549 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1551 OutputFile *of = output_files[ost->file_index];
1552 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1554 if (ost->source_index != ist_index)
1560 if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
1566 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1568 OutputFile *of = output_files[ost->file_index];
1569 InputFile *f = input_files [ist->file_index];
1570 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1571 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1572 int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
1576 av_init_packet(&opkt);
1578 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1579 !ost->copy_initial_nonkeyframes)
1582 if (pkt->pts == AV_NOPTS_VALUE) {
1583 if (!ost->frame_number && ist->pts < start_time &&
1584 !ost->copy_prior_start)
1587 if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
1588 !ost->copy_prior_start)
1592 if (of->recording_time != INT64_MAX &&
1593 ist->pts >= of->recording_time + start_time) {
1594 close_output_stream(ost);
1598 if (f->recording_time != INT64_MAX) {
1599 start_time = f->ctx->start_time;
1600 if (f->start_time != AV_NOPTS_VALUE)
1601 start_time += f->start_time;
1602 if (ist->pts >= f->recording_time + start_time) {
1603 close_output_stream(ost);
1608 /* force the input stream PTS */
1609 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1612 if (pkt->pts != AV_NOPTS_VALUE)
1613 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1615 opkt.pts = AV_NOPTS_VALUE;
1617 if (pkt->dts == AV_NOPTS_VALUE)
1618 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1620 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1621 opkt.dts -= ost_tb_start_time;
1623 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1624 int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
1626 duration = ist->st->codec->frame_size;
1627 opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
1628 (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
1629 ost->st->time_base) - ost_tb_start_time;
1632 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1633 opkt.flags = pkt->flags;
1635 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1636 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1637 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1638 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1639 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1641 if (av_parser_change(ost->parser, ost->st->codec,
1642 &opkt.data, &opkt.size,
1643 pkt->data, pkt->size,
1644 pkt->flags & AV_PKT_FLAG_KEY)) {
1645 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1650 opkt.data = pkt->data;
1651 opkt.size = pkt->size;
1653 av_copy_packet_side_data(&opkt, pkt);
1655 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
1656 /* store AVPicture in AVPacket, as expected by the output format */
1657 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1658 opkt.data = (uint8_t *)&pict;
1659 opkt.size = sizeof(AVPicture);
1660 opkt.flags |= AV_PKT_FLAG_KEY;
1663 write_frame(of->ctx, &opkt, ost);
1664 ost->st->codec->frame_number++;
1667 int guess_input_channel_layout(InputStream *ist)
1669 AVCodecContext *dec = ist->st->codec;
1671 if (!dec->channel_layout) {
1672 char layout_name[256];
1674 if (dec->channels > ist->guess_layout_max)
1676 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1677 if (!dec->channel_layout)
1679 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1680 dec->channels, dec->channel_layout);
1681 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1682 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1687 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1689 AVFrame *decoded_frame, *f;
1690 AVCodecContext *avctx = ist->st->codec;
1691 int i, ret, err = 0, resample_changed;
1692 AVRational decoded_frame_tb;
1694 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1695 return AVERROR(ENOMEM);
1696 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1697 return AVERROR(ENOMEM);
1698 decoded_frame = ist->decoded_frame;
1700 update_benchmark(NULL);
1701 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1702 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
1704 if (ret >= 0 && avctx->sample_rate <= 0) {
1705 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
1706 ret = AVERROR_INVALIDDATA;
1709 if (*got_output || ret<0 || pkt->size)
1710 decode_error_stat[ret<0] ++;
1712 if (!*got_output || ret < 0) {
1714 for (i = 0; i < ist->nb_filters; i++)
1716 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1718 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1724 ist->samples_decoded += decoded_frame->nb_samples;
1725 ist->frames_decoded++;
1728 /* increment next_dts to use for the case where the input stream does not
1729 have timestamps or there are multiple frames in the packet */
1730 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1732 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1736 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1737 ist->resample_channels != avctx->channels ||
1738 ist->resample_channel_layout != decoded_frame->channel_layout ||
1739 ist->resample_sample_rate != decoded_frame->sample_rate;
1740 if (resample_changed) {
1741 char layout1[64], layout2[64];
1743 if (!guess_input_channel_layout(ist)) {
1744 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1745 "layout for Input Stream #%d.%d\n", ist->file_index,
1749 decoded_frame->channel_layout = avctx->channel_layout;
1751 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1752 ist->resample_channel_layout);
1753 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1754 decoded_frame->channel_layout);
1756 av_log(NULL, AV_LOG_INFO,
1757 "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",
1758 ist->file_index, ist->st->index,
1759 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1760 ist->resample_channels, layout1,
1761 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1762 avctx->channels, layout2);
1764 ist->resample_sample_fmt = decoded_frame->format;
1765 ist->resample_sample_rate = decoded_frame->sample_rate;
1766 ist->resample_channel_layout = decoded_frame->channel_layout;
1767 ist->resample_channels = avctx->channels;
1769 for (i = 0; i < nb_filtergraphs; i++)
1770 if (ist_in_filtergraph(filtergraphs[i], ist)) {
1771 FilterGraph *fg = filtergraphs[i];
1773 if (configure_filtergraph(fg) < 0) {
1774 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1777 for (j = 0; j < fg->nb_outputs; j++) {
1778 OutputStream *ost = fg->outputs[j]->ost;
1779 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1780 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1781 av_buffersink_set_frame_size(ost->filter->filter,
1782 ost->st->codec->frame_size);
1787 /* if the decoder provides a pts, use it instead of the last packet pts.
1788 the decoder could be delaying output by a packet or more. */
1789 if (decoded_frame->pts != AV_NOPTS_VALUE) {
1790 ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
1791 decoded_frame_tb = avctx->time_base;
1792 } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
1793 decoded_frame->pts = decoded_frame->pkt_pts;
1794 pkt->pts = AV_NOPTS_VALUE;
1795 decoded_frame_tb = ist->st->time_base;
1796 } else if (pkt->pts != AV_NOPTS_VALUE) {
1797 decoded_frame->pts = pkt->pts;
1798 pkt->pts = AV_NOPTS_VALUE;
1799 decoded_frame_tb = ist->st->time_base;
1801 decoded_frame->pts = ist->dts;
1802 decoded_frame_tb = AV_TIME_BASE_Q;
1804 if (decoded_frame->pts != AV_NOPTS_VALUE)
1805 decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
1806 (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
1807 (AVRational){1, ist->st->codec->sample_rate});
1808 for (i = 0; i < ist->nb_filters; i++) {
1809 if (i < ist->nb_filters - 1) {
1810 f = ist->filter_frame;
1811 err = av_frame_ref(f, decoded_frame);
1816 err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
1817 AV_BUFFERSRC_FLAG_PUSH);
1818 if (err == AVERROR_EOF)
1819 err = 0; /* ignore */
1823 decoded_frame->pts = AV_NOPTS_VALUE;
1825 av_frame_unref(ist->filter_frame);
1826 av_frame_unref(decoded_frame);
1827 return err < 0 ? err : ret;
1830 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1832 AVFrame *decoded_frame, *f;
1833 int i, ret = 0, err = 0, resample_changed;
1834 int64_t best_effort_timestamp;
1835 AVRational *frame_sample_aspect;
1837 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1838 return AVERROR(ENOMEM);
1839 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1840 return AVERROR(ENOMEM);
1841 decoded_frame = ist->decoded_frame;
1842 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
1844 update_benchmark(NULL);
1845 ret = avcodec_decode_video2(ist->st->codec,
1846 decoded_frame, got_output, pkt);
1847 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
1849 if (*got_output || ret<0 || pkt->size)
1850 decode_error_stat[ret<0] ++;
1852 if (!*got_output || ret < 0) {
1854 for (i = 0; i < ist->nb_filters; i++)
1856 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
1858 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1864 if(ist->top_field_first>=0)
1865 decoded_frame->top_field_first = ist->top_field_first;
1867 ist->frames_decoded++;
1869 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1870 err = ist->hwaccel_retrieve_data(ist->st->codec, decoded_frame);
1874 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1876 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
1877 if(best_effort_timestamp != AV_NOPTS_VALUE)
1878 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
1881 av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
1882 "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
1883 ist->st->index, av_ts2str(decoded_frame->pts),
1884 av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
1885 best_effort_timestamp,
1886 av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
1887 decoded_frame->key_frame, decoded_frame->pict_type,
1888 ist->st->time_base.num, ist->st->time_base.den);
1893 if (ist->st->sample_aspect_ratio.num)
1894 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1896 resample_changed = ist->resample_width != decoded_frame->width ||
1897 ist->resample_height != decoded_frame->height ||
1898 ist->resample_pix_fmt != decoded_frame->format;
1899 if (resample_changed) {
1900 av_log(NULL, AV_LOG_INFO,
1901 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1902 ist->file_index, ist->st->index,
1903 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1904 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1906 ist->resample_width = decoded_frame->width;
1907 ist->resample_height = decoded_frame->height;
1908 ist->resample_pix_fmt = decoded_frame->format;
1910 for (i = 0; i < nb_filtergraphs; i++) {
1911 if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
1912 configure_filtergraph(filtergraphs[i]) < 0) {
1913 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1919 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
1920 for (i = 0; i < ist->nb_filters; i++) {
1921 if (!frame_sample_aspect->num)
1922 *frame_sample_aspect = ist->st->sample_aspect_ratio;
1924 if (i < ist->nb_filters - 1) {
1925 f = ist->filter_frame;
1926 err = av_frame_ref(f, decoded_frame);
1931 ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
1932 if (ret == AVERROR_EOF) {
1933 ret = 0; /* ignore */
1934 } else if (ret < 0) {
1935 av_log(NULL, AV_LOG_FATAL,
1936 "Failed to inject frame into filter network: %s\n", av_err2str(ret));
1942 av_frame_unref(ist->filter_frame);
1943 av_frame_unref(decoded_frame);
1944 return err < 0 ? err : ret;
1947 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1949 AVSubtitle subtitle;
1950 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1951 &subtitle, got_output, pkt);
1953 if (*got_output || ret<0 || pkt->size)
1954 decode_error_stat[ret<0] ++;
1956 if (ret < 0 || !*got_output) {
1958 sub2video_flush(ist);
1962 if (ist->fix_sub_duration) {
1964 if (ist->prev_sub.got_output) {
1965 end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1966 1000, AV_TIME_BASE);
1967 if (end < ist->prev_sub.subtitle.end_display_time) {
1968 av_log(ist->st->codec, AV_LOG_DEBUG,
1969 "Subtitle duration reduced from %d to %d%s\n",
1970 ist->prev_sub.subtitle.end_display_time, end,
1971 end <= 0 ? ", dropping it" : "");
1972 ist->prev_sub.subtitle.end_display_time = end;
1975 FFSWAP(int, *got_output, ist->prev_sub.got_output);
1976 FFSWAP(int, ret, ist->prev_sub.ret);
1977 FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
1985 sub2video_update(ist, &subtitle);
1987 if (!subtitle.num_rects)
1990 ist->frames_decoded++;
1992 for (i = 0; i < nb_output_streams; i++) {
1993 OutputStream *ost = output_streams[i];
1995 if (!check_output_constraints(ist, ost) || !ost->encoding_needed
1996 || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
1999 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
2003 avsubtitle_free(&subtitle);
2007 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2008 static int output_packet(InputStream *ist, const AVPacket *pkt)
2014 if (!ist->saw_first_ts) {
2015 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;
2017 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2018 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2019 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2021 ist->saw_first_ts = 1;
2024 if (ist->next_dts == AV_NOPTS_VALUE)
2025 ist->next_dts = ist->dts;
2026 if (ist->next_pts == AV_NOPTS_VALUE)
2027 ist->next_pts = ist->pts;
2031 av_init_packet(&avpkt);
2039 if (pkt->dts != AV_NOPTS_VALUE) {
2040 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2041 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2042 ist->next_pts = ist->pts = ist->dts;
2045 // while we have more to decode or while the decoder did output something on EOF
2046 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2050 ist->pts = ist->next_pts;
2051 ist->dts = ist->next_dts;
2053 if (avpkt.size && avpkt.size != pkt->size &&
2054 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
2055 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2056 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2057 ist->showed_multi_packet_warning = 1;
2060 switch (ist->st->codec->codec_type) {
2061 case AVMEDIA_TYPE_AUDIO:
2062 ret = decode_audio (ist, &avpkt, &got_output);
2064 case AVMEDIA_TYPE_VIDEO:
2065 ret = decode_video (ist, &avpkt, &got_output);
2066 if (avpkt.duration) {
2067 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2068 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
2069 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
2070 duration = ((int64_t)AV_TIME_BASE *
2071 ist->st->codec->time_base.num * ticks) /
2072 ist->st->codec->time_base.den;
2076 if(ist->dts != AV_NOPTS_VALUE && duration) {
2077 ist->next_dts += duration;
2079 ist->next_dts = AV_NOPTS_VALUE;
2082 ist->next_pts += duration; //FIXME the duration is not correct in some cases
2084 case AVMEDIA_TYPE_SUBTITLE:
2085 ret = transcode_subtitles(ist, &avpkt, &got_output);
2095 avpkt.pts= AV_NOPTS_VALUE;
2097 // touch data and size only if not EOF
2099 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
2109 /* handle stream copy */
2110 if (!ist->decoding_needed) {
2111 ist->dts = ist->next_dts;
2112 switch (ist->st->codec->codec_type) {
2113 case AVMEDIA_TYPE_AUDIO:
2114 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2115 ist->st->codec->sample_rate;
2117 case AVMEDIA_TYPE_VIDEO:
2118 if (ist->framerate.num) {
2119 // TODO: Remove work-around for c99-to-c89 issue 7
2120 AVRational time_base_q = AV_TIME_BASE_Q;
2121 int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
2122 ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
2123 } else if (pkt->duration) {
2124 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2125 } else if(ist->st->codec->time_base.num != 0) {
2126 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2127 ist->next_dts += ((int64_t)AV_TIME_BASE *
2128 ist->st->codec->time_base.num * ticks) /
2129 ist->st->codec->time_base.den;
2133 ist->pts = ist->dts;
2134 ist->next_pts = ist->next_dts;
2136 for (i = 0; pkt && i < nb_output_streams; i++) {
2137 OutputStream *ost = output_streams[i];
2139 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2142 do_streamcopy(ist, ost, pkt);
2148 static void print_sdp(void)
2152 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2156 for (i = 0; i < nb_output_files; i++)
2157 avc[i] = output_files[i]->ctx;
2159 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2160 printf("SDP:\n%s\n", sdp);
2165 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
2168 for (i = 0; hwaccels[i].name; i++)
2169 if (hwaccels[i].pix_fmt == pix_fmt)
2170 return &hwaccels[i];
2174 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
2176 InputStream *ist = s->opaque;
2177 const enum AVPixelFormat *p;
2180 for (p = pix_fmts; *p != -1; p++) {
2181 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
2182 const HWAccel *hwaccel;
2184 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
2187 hwaccel = get_hwaccel(*p);
2189 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
2190 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
2193 ret = hwaccel->init(s);
2195 if (ist->hwaccel_id == hwaccel->id) {
2196 av_log(NULL, AV_LOG_FATAL,
2197 "%s hwaccel requested for input stream #%d:%d, "
2198 "but cannot be initialized.\n", hwaccel->name,
2199 ist->file_index, ist->st->index);
2204 ist->active_hwaccel_id = hwaccel->id;
2205 ist->hwaccel_pix_fmt = *p;
2212 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
2214 InputStream *ist = s->opaque;
2216 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
2217 return ist->hwaccel_get_buffer(s, frame, flags);
2219 return avcodec_default_get_buffer2(s, frame, flags);
2222 static int init_input_stream(int ist_index, char *error, int error_len)
2225 InputStream *ist = input_streams[ist_index];
2227 if (ist->decoding_needed) {
2228 AVCodec *codec = ist->dec;
2230 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2231 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2232 return AVERROR(EINVAL);
2235 ist->st->codec->opaque = ist;
2236 ist->st->codec->get_format = get_format;
2237 ist->st->codec->get_buffer2 = get_buffer;
2238 ist->st->codec->thread_safe_callbacks = 1;
2240 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
2242 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2243 av_dict_set(&ist->opts, "threads", "auto", 0);
2244 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
2245 if (ret == AVERROR_EXPERIMENTAL)
2246 abort_codec_experimental(codec, 0);
2248 snprintf(error, error_len,
2249 "Error while opening decoder for input stream "
2251 ist->file_index, ist->st->index, av_err2str(ret));
2254 assert_avoptions(ist->opts);
2257 ist->next_pts = AV_NOPTS_VALUE;
2258 ist->next_dts = AV_NOPTS_VALUE;
2263 static InputStream *get_input_stream(OutputStream *ost)
2265 if (ost->source_index >= 0)
2266 return input_streams[ost->source_index];
2270 static int compare_int64(const void *a, const void *b)
2272 int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
2273 return va < vb ? -1 : va > vb ? +1 : 0;
2276 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2277 AVCodecContext *avctx)
2280 int n = 1, i, size, index = 0;
2283 for (p = kf; *p; p++)
2287 pts = av_malloc(sizeof(*pts) * size);
2289 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2294 for (i = 0; i < n; i++) {
2295 char *next = strchr(p, ',');
2300 if (!memcmp(p, "chapters", 8)) {
2302 AVFormatContext *avf = output_files[ost->file_index]->ctx;
2305 if (avf->nb_chapters > INT_MAX - size ||
2306 !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
2308 av_log(NULL, AV_LOG_FATAL,
2309 "Could not allocate forced key frames array.\n");
2312 t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
2313 t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2315 for (j = 0; j < avf->nb_chapters; j++) {
2316 AVChapter *c = avf->chapters[j];
2317 av_assert1(index < size);
2318 pts[index++] = av_rescale_q(c->start, c->time_base,
2319 avctx->time_base) + t;
2324 t = parse_time_or_die("force_key_frames", p, 1);
2325 av_assert1(index < size);
2326 pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2333 av_assert0(index == size);
2334 qsort(pts, size, sizeof(*pts), compare_int64);
2335 ost->forced_kf_count = size;
2336 ost->forced_kf_pts = pts;
2339 static void report_new_stream(int input_index, AVPacket *pkt)
2341 InputFile *file = input_files[input_index];
2342 AVStream *st = file->ctx->streams[pkt->stream_index];
2344 if (pkt->stream_index < file->nb_streams_warn)
2346 av_log(file->ctx, AV_LOG_WARNING,
2347 "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
2348 av_get_media_type_string(st->codec->codec_type),
2349 input_index, pkt->stream_index,
2350 pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
2351 file->nb_streams_warn = pkt->stream_index + 1;
2354 static int transcode_init(void)
2356 int ret = 0, i, j, k;
2357 AVFormatContext *oc;
2358 AVCodecContext *codec;
2364 for (i = 0; i < nb_filtergraphs; i++) {
2365 FilterGraph *fg = filtergraphs[i];
2366 for (j = 0; j < fg->nb_outputs; j++) {
2367 OutputFilter *ofilter = fg->outputs[j];
2368 if (!ofilter->ost || ofilter->ost->source_index >= 0)
2370 if (fg->nb_inputs != 1)
2372 for (k = nb_input_streams-1; k >= 0 ; k--)
2373 if (fg->inputs[0]->ist == input_streams[k])
2375 ofilter->ost->source_index = k;
2379 /* init framerate emulation */
2380 for (i = 0; i < nb_input_files; i++) {
2381 InputFile *ifile = input_files[i];
2382 if (ifile->rate_emu)
2383 for (j = 0; j < ifile->nb_streams; j++)
2384 input_streams[j + ifile->ist_index]->start = av_gettime();
2387 /* output stream init */
2388 for (i = 0; i < nb_output_files; i++) {
2389 oc = output_files[i]->ctx;
2390 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2391 av_dump_format(oc, i, oc->filename, 1);
2392 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2393 return AVERROR(EINVAL);
2397 /* init complex filtergraphs */
2398 for (i = 0; i < nb_filtergraphs; i++)
2399 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2402 /* for each output stream, we compute the right encoding parameters */
2403 for (i = 0; i < nb_output_streams; i++) {
2404 AVCodecContext *icodec = NULL;
2405 ost = output_streams[i];
2406 oc = output_files[ost->file_index]->ctx;
2407 ist = get_input_stream(ost);
2409 if (ost->attachment_filename)
2412 codec = ost->st->codec;
2415 icodec = ist->st->codec;
2417 ost->st->disposition = ist->st->disposition;
2418 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2419 codec->chroma_sample_location = icodec->chroma_sample_location;
2421 for (j=0; j<oc->nb_streams; j++) {
2422 AVStream *st = oc->streams[j];
2423 if (st != ost->st && st->codec->codec_type == codec->codec_type)
2426 if (j == oc->nb_streams)
2427 if (codec->codec_type == AVMEDIA_TYPE_AUDIO || codec->codec_type == AVMEDIA_TYPE_VIDEO)
2428 ost->st->disposition = AV_DISPOSITION_DEFAULT;
2431 if (ost->stream_copy) {
2433 uint64_t extra_size;
2435 av_assert0(ist && !ost->filter);
2437 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2439 if (extra_size > INT_MAX) {
2440 return AVERROR(EINVAL);
2443 /* if stream_copy is selected, no need to decode or encode */
2444 codec->codec_id = icodec->codec_id;
2445 codec->codec_type = icodec->codec_type;
2447 if (!codec->codec_tag) {
2448 unsigned int codec_tag;
2449 if (!oc->oformat->codec_tag ||
2450 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2451 !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
2452 codec->codec_tag = icodec->codec_tag;
2455 codec->bit_rate = icodec->bit_rate;
2456 codec->rc_max_rate = icodec->rc_max_rate;
2457 codec->rc_buffer_size = icodec->rc_buffer_size;
2458 codec->field_order = icodec->field_order;
2459 codec->extradata = av_mallocz(extra_size);
2460 if (!codec->extradata) {
2461 return AVERROR(ENOMEM);
2463 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2464 codec->extradata_size= icodec->extradata_size;
2465 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2467 codec->time_base = ist->st->time_base;
2469 * Avi is a special case here because it supports variable fps but
2470 * having the fps and timebase differe significantly adds quite some
2473 if(!strcmp(oc->oformat->name, "avi")) {
2474 if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
2475 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
2476 && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
2477 && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
2479 codec->time_base.num = ist->st->r_frame_rate.den;
2480 codec->time_base.den = 2*ist->st->r_frame_rate.num;
2481 codec->ticks_per_frame = 2;
2482 } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2483 && av_q2d(ist->st->time_base) < 1.0/500
2485 codec->time_base = icodec->time_base;
2486 codec->time_base.num *= icodec->ticks_per_frame;
2487 codec->time_base.den *= 2;
2488 codec->ticks_per_frame = 2;
2490 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2491 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2492 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2493 && strcmp(oc->oformat->name, "f4v")
2495 if( copy_tb<0 && icodec->time_base.den
2496 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2497 && av_q2d(ist->st->time_base) < 1.0/500
2499 codec->time_base = icodec->time_base;
2500 codec->time_base.num *= icodec->ticks_per_frame;
2503 if ( codec->codec_tag == AV_RL32("tmcd")
2504 && icodec->time_base.num < icodec->time_base.den
2505 && icodec->time_base.num > 0
2506 && 121LL*icodec->time_base.num > icodec->time_base.den) {
2507 codec->time_base = icodec->time_base;
2510 if (ist && !ost->frame_rate.num)
2511 ost->frame_rate = ist->framerate;
2512 if(ost->frame_rate.num)
2513 codec->time_base = av_inv_q(ost->frame_rate);
2515 av_reduce(&codec->time_base.num, &codec->time_base.den,
2516 codec->time_base.num, codec->time_base.den, INT_MAX);
2518 ost->parser = av_parser_init(codec->codec_id);
2520 switch (codec->codec_type) {
2521 case AVMEDIA_TYPE_AUDIO:
2522 if (audio_volume != 256) {
2523 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2526 codec->channel_layout = icodec->channel_layout;
2527 codec->sample_rate = icodec->sample_rate;
2528 codec->channels = icodec->channels;
2529 codec->frame_size = icodec->frame_size;
2530 codec->audio_service_type = icodec->audio_service_type;
2531 codec->block_align = icodec->block_align;
2532 codec->delay = icodec->delay;
2533 if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
2534 codec->block_align= 0;
2535 if(codec->codec_id == AV_CODEC_ID_AC3)
2536 codec->block_align= 0;
2538 case AVMEDIA_TYPE_VIDEO:
2539 codec->pix_fmt = icodec->pix_fmt;
2540 codec->width = icodec->width;
2541 codec->height = icodec->height;
2542 codec->has_b_frames = icodec->has_b_frames;
2543 if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
2545 av_mul_q(ost->frame_aspect_ratio,
2546 (AVRational){ codec->height, codec->width });
2547 av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
2548 "with stream copy may produce invalid files\n");
2550 else if (ist->st->sample_aspect_ratio.num)
2551 sar = ist->st->sample_aspect_ratio;
2553 sar = icodec->sample_aspect_ratio;
2554 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
2555 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2557 case AVMEDIA_TYPE_SUBTITLE:
2558 codec->width = icodec->width;
2559 codec->height = icodec->height;
2561 case AVMEDIA_TYPE_DATA:
2562 case AVMEDIA_TYPE_ATTACHMENT:
2569 ost->enc = avcodec_find_encoder(codec->codec_id);
2571 /* should only happen when a default codec is not present. */
2572 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2573 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2574 ret = AVERROR(EINVAL);
2579 ist->decoding_needed++;
2580 ost->encoding_needed = 1;
2583 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2584 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2586 fg = init_simple_filtergraph(ist, ost);
2587 if (configure_filtergraph(fg)) {
2588 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2593 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2594 if (ost->filter && !ost->frame_rate.num)
2595 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
2596 if (ist && !ost->frame_rate.num)
2597 ost->frame_rate = ist->framerate;
2598 if (ist && !ost->frame_rate.num)
2599 ost->frame_rate = ist->st->r_frame_rate;
2600 if (ist && !ost->frame_rate.num) {
2601 ost->frame_rate = (AVRational){25, 1};
2602 av_log(NULL, AV_LOG_WARNING,
2604 "about the input framerate is available. Falling "
2605 "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
2606 "if you want a different framerate.\n",
2607 ost->file_index, ost->index);
2609 // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2610 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2611 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2612 ost->frame_rate = ost->enc->supported_framerates[idx];
2614 if (codec->codec_id == AV_CODEC_ID_MPEG4) {
2615 av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
2616 ost->frame_rate.num, ost->frame_rate.den, 65535);
2620 switch (codec->codec_type) {
2621 case AVMEDIA_TYPE_AUDIO:
2622 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2623 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2624 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2625 codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
2626 codec->time_base = (AVRational){ 1, codec->sample_rate };
2628 case AVMEDIA_TYPE_VIDEO:
2629 codec->time_base = av_inv_q(ost->frame_rate);
2630 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
2631 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2632 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2633 && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2634 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
2635 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
2637 for (j = 0; j < ost->forced_kf_count; j++)
2638 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2642 codec->width = ost->filter->filter->inputs[0]->w;
2643 codec->height = ost->filter->filter->inputs[0]->h;
2644 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2645 ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
2646 av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
2647 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2648 if (!strncmp(ost->enc->name, "libx264", 7) &&
2649 codec->pix_fmt == AV_PIX_FMT_NONE &&
2650 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2651 av_log(NULL, AV_LOG_WARNING,
2652 "No pixel format specified, %s for H.264 encoding chosen.\n"
2653 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2654 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2655 if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
2656 codec->pix_fmt == AV_PIX_FMT_NONE &&
2657 ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
2658 av_log(NULL, AV_LOG_WARNING,
2659 "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
2660 "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
2661 av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
2662 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2665 codec->width != icodec->width ||
2666 codec->height != icodec->height ||
2667 codec->pix_fmt != icodec->pix_fmt) {
2668 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2671 if (ost->forced_keyframes) {
2672 if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
2673 ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
2674 forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
2676 av_log(NULL, AV_LOG_ERROR,
2677 "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
2680 ost->forced_keyframes_expr_const_values[FKF_N] = 0;
2681 ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
2682 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
2683 ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
2685 parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
2689 case AVMEDIA_TYPE_SUBTITLE:
2690 codec->time_base = (AVRational){1, 1000};
2691 if (!codec->width) {
2692 codec->width = input_streams[ost->source_index]->st->codec->width;
2693 codec->height = input_streams[ost->source_index]->st->codec->height;
2701 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
2702 char logfilename[1024];
2705 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2706 ost->logfile_prefix ? ost->logfile_prefix :
2707 DEFAULT_PASS_LOGFILENAME_PREFIX,
2709 if (!strcmp(ost->enc->name, "libx264")) {
2710 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2712 if (codec->flags & CODEC_FLAG_PASS2) {
2714 size_t logbuffer_size;
2715 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2716 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2720 codec->stats_in = logbuffer;
2722 if (codec->flags & CODEC_FLAG_PASS1) {
2723 f = av_fopen_utf8(logfilename, "wb");
2725 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2726 logfilename, strerror(errno));
2736 /* open each encoder */
2737 for (i = 0; i < nb_output_streams; i++) {
2738 ost = output_streams[i];
2739 if (ost->encoding_needed) {
2740 AVCodec *codec = ost->enc;
2741 AVCodecContext *dec = NULL;
2743 if ((ist = get_input_stream(ost)))
2744 dec = ist->st->codec;
2745 if (dec && dec->subtitle_header) {
2746 /* ASS code assumes this buffer is null terminated so add extra byte. */
2747 ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
2748 if (!ost->st->codec->subtitle_header) {
2749 ret = AVERROR(ENOMEM);
2752 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2753 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2755 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2756 av_dict_set(&ost->opts, "threads", "auto", 0);
2757 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
2758 if (ret == AVERROR_EXPERIMENTAL)
2759 abort_codec_experimental(codec, 1);
2760 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2761 ost->file_index, ost->index);
2764 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2765 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2766 av_buffersink_set_frame_size(ost->filter->filter,
2767 ost->st->codec->frame_size);
2768 assert_avoptions(ost->opts);
2769 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2770 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2771 " It takes bits/s as argument, not kbits/s\n");
2773 av_opt_set_dict(ost->st->codec, &ost->opts);
2777 /* init input streams */
2778 for (i = 0; i < nb_input_streams; i++)
2779 if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
2780 for (i = 0; i < nb_output_streams; i++) {
2781 ost = output_streams[i];
2782 avcodec_close(ost->st->codec);
2787 /* discard unused programs */
2788 for (i = 0; i < nb_input_files; i++) {
2789 InputFile *ifile = input_files[i];
2790 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2791 AVProgram *p = ifile->ctx->programs[j];
2792 int discard = AVDISCARD_ALL;
2794 for (k = 0; k < p->nb_stream_indexes; k++)
2795 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2796 discard = AVDISCARD_DEFAULT;
2799 p->discard = discard;
2803 /* open files and write file headers */
2804 for (i = 0; i < nb_output_files; i++) {
2805 oc = output_files[i]->ctx;
2806 oc->interrupt_callback = int_cb;
2807 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2808 snprintf(error, sizeof(error),
2809 "Could not write header for output file #%d "
2810 "(incorrect codec parameters ?): %s",
2811 i, av_err2str(ret));
2812 ret = AVERROR(EINVAL);
2815 // assert_avoptions(output_files[i]->opts);
2816 if (strcmp(oc->oformat->name, "rtp")) {
2822 /* dump the file output parameters - cannot be done before in case
2824 for (i = 0; i < nb_output_files; i++) {
2825 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2828 /* dump the stream mapping */
2829 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2830 for (i = 0; i < nb_input_streams; i++) {
2831 ist = input_streams[i];
2833 for (j = 0; j < ist->nb_filters; j++) {
2834 if (ist->filters[j]->graph->graph_desc) {
2835 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2836 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2837 ist->filters[j]->name);
2838 if (nb_filtergraphs > 1)
2839 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2840 av_log(NULL, AV_LOG_INFO, "\n");
2845 for (i = 0; i < nb_output_streams; i++) {
2846 ost = output_streams[i];
2848 if (ost->attachment_filename) {
2849 /* an attached file */
2850 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2851 ost->attachment_filename, ost->file_index, ost->index);
2855 if (ost->filter && ost->filter->graph->graph_desc) {
2856 /* output from a complex graph */
2857 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2858 if (nb_filtergraphs > 1)
2859 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2861 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2862 ost->index, ost->enc ? ost->enc->name : "?");
2866 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2867 input_streams[ost->source_index]->file_index,
2868 input_streams[ost->source_index]->st->index,
2871 if (ost->sync_ist != input_streams[ost->source_index])
2872 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2873 ost->sync_ist->file_index,
2874 ost->sync_ist->st->index);
2875 if (ost->stream_copy)
2876 av_log(NULL, AV_LOG_INFO, " (copy)");
2878 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2879 input_streams[ost->source_index]->dec->name : "?",
2880 ost->enc ? ost->enc->name : "?");
2881 av_log(NULL, AV_LOG_INFO, "\n");
2885 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2893 transcode_init_done = 1;
2898 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2899 static int need_output(void)
2903 for (i = 0; i < nb_output_streams; i++) {
2904 OutputStream *ost = output_streams[i];
2905 OutputFile *of = output_files[ost->file_index];
2906 AVFormatContext *os = output_files[ost->file_index]->ctx;
2908 if (ost->finished ||
2909 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2911 if (ost->frame_number >= ost->max_frames) {
2913 for (j = 0; j < of->ctx->nb_streams; j++)
2914 close_output_stream(output_streams[of->ost_index + j]);
2925 * Select the output stream to process.
2927 * @return selected output stream, or NULL if none available
2929 static OutputStream *choose_output(void)
2932 int64_t opts_min = INT64_MAX;
2933 OutputStream *ost_min = NULL;
2935 for (i = 0; i < nb_output_streams; i++) {
2936 OutputStream *ost = output_streams[i];
2937 int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
2939 if (!ost->unavailable && !ost->finished && opts < opts_min) {
2947 static int check_keyboard_interaction(int64_t cur_time)
2950 static int64_t last_time;
2951 if (received_nb_signals)
2952 return AVERROR_EXIT;
2953 /* read_key() returns 0 on EOF */
2954 if(cur_time - last_time >= 100000 && !run_as_daemon){
2956 last_time = cur_time;
2960 return AVERROR_EXIT;
2961 if (key == '+') av_log_set_level(av_log_get_level()+10);
2962 if (key == '-') av_log_set_level(av_log_get_level()-10);
2963 if (key == 's') qp_hist ^= 1;
2966 do_hex_dump = do_pkt_dump = 0;
2967 } else if(do_pkt_dump){
2971 av_log_set_level(AV_LOG_DEBUG);
2973 if (key == 'c' || key == 'C'){
2974 char buf[4096], target[64], command[256], arg[256] = {0};
2977 fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
2979 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2984 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2985 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2986 target, time, command, arg);
2987 for (i = 0; i < nb_filtergraphs; i++) {
2988 FilterGraph *fg = filtergraphs[i];
2991 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
2992 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2993 fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
2994 } else if (key == 'c') {
2995 fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
2996 ret = AVERROR_PATCHWELCOME;
2998 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3003 av_log(NULL, AV_LOG_ERROR,
3004 "Parse error, at least 3 arguments were expected, "
3005 "only %d given in string '%s'\n", n, buf);
3008 if (key == 'd' || key == 'D'){
3011 debug = input_streams[0]->st->codec->debug<<1;
3012 if(!debug) debug = 1;
3013 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3016 if(scanf("%d", &debug)!=1)
3017 fprintf(stderr,"error parsing debug value\n");
3018 for(i=0;i<nb_input_streams;i++) {
3019 input_streams[i]->st->codec->debug = debug;
3021 for(i=0;i<nb_output_streams;i++) {
3022 OutputStream *ost = output_streams[i];
3023 ost->st->codec->debug = debug;
3025 if(debug) av_log_set_level(AV_LOG_DEBUG);
3026 fprintf(stderr,"debug=%d\n", debug);
3029 fprintf(stderr, "key function\n"
3030 "? show this help\n"
3031 "+ increase verbosity\n"
3032 "- decrease verbosity\n"
3033 "c Send command to first matching filter supporting it\n"
3034 "C Send/Que command to all matching filters\n"
3035 "D cycle through available debug modes\n"
3036 "h dump packets/hex press to cycle through the 3 states\n"
3038 "s Show QP histogram\n"
3045 static void *input_thread(void *arg)
3050 while (!transcoding_finished && ret >= 0) {
3052 ret = av_read_frame(f->ctx, &pkt);
3054 if (ret == AVERROR(EAGAIN)) {
3061 pthread_mutex_lock(&f->fifo_lock);
3062 while (!av_fifo_space(f->fifo))
3063 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
3065 av_dup_packet(&pkt);
3066 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
3067 pthread_cond_signal(&f->fifo_cond);
3069 pthread_mutex_unlock(&f->fifo_lock);
3072 pthread_mutex_lock(&f->fifo_lock);
3074 pthread_cond_signal(&f->fifo_cond);
3075 pthread_mutex_unlock(&f->fifo_lock);
3079 static void free_input_threads(void)
3083 if (nb_input_files == 1)
3086 transcoding_finished = 1;
3088 for (i = 0; i < nb_input_files; i++) {
3089 InputFile *f = input_files[i];
3092 if (!f->fifo || f->joined)
3095 pthread_mutex_lock(&f->fifo_lock);
3096 while (av_fifo_size(f->fifo)) {
3097 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3098 av_free_packet(&pkt);
3100 pthread_cond_signal(&f->fifo_cond);
3101 pthread_mutex_unlock(&f->fifo_lock);
3103 pthread_join(f->thread, NULL);
3106 while (av_fifo_size(f->fifo)) {
3107 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3108 av_free_packet(&pkt);
3110 av_fifo_free(f->fifo);
3114 static int init_input_threads(void)
3118 if (nb_input_files == 1)
3121 for (i = 0; i < nb_input_files; i++) {
3122 InputFile *f = input_files[i];
3124 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
3125 return AVERROR(ENOMEM);
3127 if (f->ctx->pb ? !f->ctx->pb->seekable :
3128 strcmp(f->ctx->iformat->name, "lavfi"))
3129 f->non_blocking = 1;
3131 pthread_mutex_init(&f->fifo_lock, NULL);
3132 pthread_cond_init (&f->fifo_cond, NULL);
3134 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
3135 return AVERROR(ret);
3140 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3144 pthread_mutex_lock(&f->fifo_lock);
3147 if (av_fifo_size(f->fifo)) {
3148 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
3149 pthread_cond_signal(&f->fifo_cond);
3156 if (f->non_blocking) {
3157 ret = AVERROR(EAGAIN);
3160 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
3164 pthread_mutex_unlock(&f->fifo_lock);
3170 static int get_input_packet(InputFile *f, AVPacket *pkt)
3174 for (i = 0; i < f->nb_streams; i++) {
3175 InputStream *ist = input_streams[f->ist_index + i];
3176 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
3177 int64_t now = av_gettime() - ist->start;
3179 return AVERROR(EAGAIN);
3184 if (nb_input_files > 1)
3185 return get_input_packet_mt(f, pkt);
3187 return av_read_frame(f->ctx, pkt);
3190 static int got_eagain(void)
3193 for (i = 0; i < nb_output_streams; i++)
3194 if (output_streams[i]->unavailable)
3199 static void reset_eagain(void)
3202 for (i = 0; i < nb_input_files; i++)
3203 input_files[i]->eagain = 0;
3204 for (i = 0; i < nb_output_streams; i++)
3205 output_streams[i]->unavailable = 0;
3210 * - 0 -- one packet was read and processed
3211 * - AVERROR(EAGAIN) -- no packets were available for selected file,
3212 * this function should be called again
3213 * - AVERROR_EOF -- this function should not be called again
3215 static int process_input(int file_index)
3217 InputFile *ifile = input_files[file_index];
3218 AVFormatContext *is;
3224 ret = get_input_packet(ifile, &pkt);
3226 if (ret == AVERROR(EAGAIN)) {
3231 if (ret != AVERROR_EOF) {
3232 print_error(is->filename, ret);
3236 ifile->eof_reached = 1;
3238 for (i = 0; i < ifile->nb_streams; i++) {
3239 ist = input_streams[ifile->ist_index + i];
3240 if (ist->decoding_needed)
3241 output_packet(ist, NULL);
3243 /* mark all outputs that don't go through lavfi as finished */
3244 for (j = 0; j < nb_output_streams; j++) {
3245 OutputStream *ost = output_streams[j];
3247 if (ost->source_index == ifile->ist_index + i &&
3248 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
3249 close_output_stream(ost);
3253 return AVERROR(EAGAIN);
3259 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3260 is->streams[pkt.stream_index]);
3262 /* the following test is needed in case new streams appear
3263 dynamically in stream : we ignore them */
3264 if (pkt.stream_index >= ifile->nb_streams) {
3265 report_new_stream(file_index, &pkt);
3266 goto discard_packet;
3269 ist = input_streams[ifile->ist_index + pkt.stream_index];
3271 ist->data_size += pkt.size;
3275 goto discard_packet;
3278 av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
3279 "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",
3280 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3281 av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
3282 av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
3283 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3284 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3285 av_ts2str(input_files[ist->file_index]->ts_offset),
3286 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3289 if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
3290 int64_t stime, stime2;
3291 // Correcting starttime based on the enabled streams
3292 // 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.
3293 // so we instead do it here as part of discontinuity handling
3294 if ( ist->next_dts == AV_NOPTS_VALUE
3295 && ifile->ts_offset == -is->start_time
3296 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3297 int64_t new_start_time = INT64_MAX;
3298 for (i=0; i<is->nb_streams; i++) {
3299 AVStream *st = is->streams[i];
3300 if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
3302 new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
3304 if (new_start_time > is->start_time) {
3305 av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
3306 ifile->ts_offset = -new_start_time;
3310 stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
3311 stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
3312 ist->wrap_correction_done = 1;
3314 if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3315 pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
3316 ist->wrap_correction_done = 0;
3318 if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
3319 pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
3320 ist->wrap_correction_done = 0;
3324 /* add the stream-global side data to the first packet */
3325 if (ist->nb_packets == 1)
3326 for (i = 0; i < ist->st->nb_side_data; i++) {
3327 AVPacketSideData *src_sd = &ist->st->side_data[i];
3330 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
3333 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
3337 memcpy(dst_data, src_sd->data, src_sd->size);
3340 if (pkt.dts != AV_NOPTS_VALUE)
3341 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3342 if (pkt.pts != AV_NOPTS_VALUE)
3343 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3345 if (pkt.pts != AV_NOPTS_VALUE)
3346 pkt.pts *= ist->ts_scale;
3347 if (pkt.dts != AV_NOPTS_VALUE)
3348 pkt.dts *= ist->ts_scale;
3350 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
3351 && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
3352 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3353 int64_t delta = pkt_dts - ifile->last_ts;
3354 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3355 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3356 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
3357 ifile->ts_offset -= delta;
3358 av_log(NULL, AV_LOG_DEBUG,
3359 "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3360 delta, ifile->ts_offset);
3361 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3362 if (pkt.pts != AV_NOPTS_VALUE)
3363 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3367 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
3369 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3370 int64_t delta = pkt_dts - ist->next_dts;
3371 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3372 if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3373 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3374 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3375 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
3376 ifile->ts_offset -= delta;
3377 av_log(NULL, AV_LOG_DEBUG,
3378 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3379 delta, ifile->ts_offset);
3380 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3381 if (pkt.pts != AV_NOPTS_VALUE)
3382 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3385 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3386 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3387 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3388 pkt.dts = AV_NOPTS_VALUE;
3390 if (pkt.pts != AV_NOPTS_VALUE){
3391 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3392 delta = pkt_pts - ist->next_dts;
3393 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3394 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3395 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3396 pkt.pts = AV_NOPTS_VALUE;
3402 if (pkt.dts != AV_NOPTS_VALUE)
3403 ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3406 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",
3407 ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
3408 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
3409 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
3410 av_ts2str(input_files[ist->file_index]->ts_offset),
3411 av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
3414 sub2video_heartbeat(ist, pkt.pts);
3416 ret = output_packet(ist, &pkt);
3418 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
3419 ist->file_index, ist->st->index, av_err2str(ret));
3425 av_free_packet(&pkt);
3431 * Perform a step of transcoding for the specified filter graph.
3433 * @param[in] graph filter graph to consider
3434 * @param[out] best_ist input stream where a frame would allow to continue
3435 * @return 0 for success, <0 for error
3437 static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
3440 int nb_requests, nb_requests_max = 0;
3441 InputFilter *ifilter;
3445 ret = avfilter_graph_request_oldest(graph->graph);
3447 return reap_filters();
3449 if (ret == AVERROR_EOF) {
3450 ret = reap_filters();
3451 for (i = 0; i < graph->nb_outputs; i++)
3452 close_output_stream(graph->outputs[i]->ost);
3455 if (ret != AVERROR(EAGAIN))
3458 for (i = 0; i < graph->nb_inputs; i++) {
3459 ifilter = graph->inputs[i];
3461 if (input_files[ist->file_index]->eagain ||
3462 input_files[ist->file_index]->eof_reached)
3464 nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
3465 if (nb_requests > nb_requests_max) {
3466 nb_requests_max = nb_requests;
3472 for (i = 0; i < graph->nb_outputs; i++)
3473 graph->outputs[i]->ost->unavailable = 1;
3479 * Run a single step of transcoding.
3481 * @return 0 for success, <0 for error
3483 static int transcode_step(void)
3489 ost = choose_output();
3496 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3501 if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
3506 av_assert0(ost->source_index >= 0);
3507 ist = input_streams[ost->source_index];
3510 ret = process_input(ist->file_index);
3511 if (ret == AVERROR(EAGAIN)) {
3512 if (input_files[ist->file_index]->eagain)
3513 ost->unavailable = 1;
3517 return ret == AVERROR_EOF ? 0 : ret;
3519 return reap_filters();
3523 * The following code is the main loop of the file converter
3525 static int transcode(void)
3528 AVFormatContext *os;
3531 int64_t timer_start;
3533 ret = transcode_init();
3537 if (stdin_interaction) {
3538 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3541 timer_start = av_gettime();
3544 if ((ret = init_input_threads()) < 0)
3548 while (!received_sigterm) {
3549 int64_t cur_time= av_gettime();
3551 /* if 'q' pressed, exits */
3552 if (stdin_interaction)
3553 if (check_keyboard_interaction(cur_time) < 0)
3556 /* check if there's any stream where output is still needed */
3557 if (!need_output()) {
3558 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3562 ret = transcode_step();
3564 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
3567 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
3571 /* dump report by using the output first video and audio streams */
3572 print_report(0, timer_start, cur_time);
3575 free_input_threads();
3578 /* at the end of stream, we must flush the decoder buffers */
3579 for (i = 0; i < nb_input_streams; i++) {
3580 ist = input_streams[i];
3581 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3582 output_packet(ist, NULL);
3589 /* write the trailer if needed and close file */
3590 for (i = 0; i < nb_output_files; i++) {
3591 os = output_files[i]->ctx;
3592 av_write_trailer(os);
3595 /* dump report by using the first video and audio streams */
3596 print_report(1, timer_start, av_gettime());
3598 /* close each encoder */
3599 for (i = 0; i < nb_output_streams; i++) {
3600 ost = output_streams[i];
3601 if (ost->encoding_needed) {
3602 av_freep(&ost->st->codec->stats_in);
3603 avcodec_close(ost->st->codec);
3607 /* close each decoder */
3608 for (i = 0; i < nb_input_streams; i++) {
3609 ist = input_streams[i];
3610 if (ist->decoding_needed) {
3611 avcodec_close(ist->st->codec);
3612 if (ist->hwaccel_uninit)
3613 ist->hwaccel_uninit(ist->st->codec);
3622 free_input_threads();
3625 if (output_streams) {
3626 for (i = 0; i < nb_output_streams; i++) {
3627 ost = output_streams[i];
3629 if (ost->stream_copy)
3630 av_freep(&ost->st->codec->extradata);
3632 fclose(ost->logfile);
3633 ost->logfile = NULL;
3635 av_freep(&ost->st->codec->subtitle_header);
3636 av_freep(&ost->forced_kf_pts);
3637 av_freep(&ost->apad);
3638 av_dict_free(&ost->opts);
3639 av_dict_free(&ost->swr_opts);
3640 av_dict_free(&ost->resample_opts);
3648 static int64_t getutime(void)
3651 struct rusage rusage;
3653 getrusage(RUSAGE_SELF, &rusage);
3654 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3655 #elif HAVE_GETPROCESSTIMES
3657 FILETIME c, e, k, u;
3658 proc = GetCurrentProcess();
3659 GetProcessTimes(proc, &c, &e, &k, &u);
3660 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3662 return av_gettime();
3666 static int64_t getmaxrss(void)
3668 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3669 struct rusage rusage;
3670 getrusage(RUSAGE_SELF, &rusage);
3671 return (int64_t)rusage.ru_maxrss * 1024;
3672 #elif HAVE_GETPROCESSMEMORYINFO
3674 PROCESS_MEMORY_COUNTERS memcounters;
3675 proc = GetCurrentProcess();
3676 memcounters.cb = sizeof(memcounters);
3677 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3678 return memcounters.PeakPagefileUsage;
3684 static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
3688 int main(int argc, char **argv)
3693 register_exit(ffmpeg_cleanup);
3695 setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
3697 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3698 parse_loglevel(argc, argv, options);
3700 if(argc>1 && !strcmp(argv[1], "-d")){
3702 av_log_set_callback(log_callback_null);
3707 avcodec_register_all();
3709 avdevice_register_all();
3711 avfilter_register_all();
3713 avformat_network_init();
3715 show_banner(argc, argv, options);
3719 /* parse options and open all input/output files */
3720 ret = ffmpeg_parse_options(argc, argv);
3724 if (nb_output_files <= 0 && nb_input_files == 0) {
3726 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3730 /* file converter / grab */
3731 if (nb_output_files <= 0) {
3732 av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
3736 // if (nb_input_files == 0) {
3737 // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
3741 current_time = ti = getutime();
3742 if (transcode() < 0)
3744 ti = getutime() - ti;
3746 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
3748 av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
3749 decode_error_stat[0], decode_error_stat[1]);
3750 if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
3753 exit_program(received_nb_signals ? 255 : main_return_code);
3754 return main_return_code;