3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/internal.h"
42 #include "libavutil/intreadwrite.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/mathematics.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/imgutils.h"
49 #include "libavutil/time.h"
50 #include "libavformat/os_support.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/buffersrc.h"
54 # include "libavfilter/buffersink.h"
56 #if HAVE_SYS_RESOURCE_H
58 #include <sys/types.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
63 #if HAVE_GETPROCESSMEMORYINFO
69 #include <sys/select.h>
81 #include "libavutil/avassert.h"
83 const char program_name[] = "avconv";
84 const int program_birth_year = 2000;
86 static FILE *vstats_file;
88 static int nb_frames_drop = 0;
93 /* signal to input threads that they should exit; set by the main thread */
94 static int transcoding_finished;
97 InputStream **input_streams = NULL;
98 int nb_input_streams = 0;
99 InputFile **input_files = NULL;
100 int nb_input_files = 0;
102 OutputStream **output_streams = NULL;
103 int nb_output_streams = 0;
104 OutputFile **output_files = NULL;
105 int nb_output_files = 0;
107 FilterGraph **filtergraphs;
110 static void term_exit(void)
112 av_log(NULL, AV_LOG_QUIET, "");
115 static volatile int received_sigterm = 0;
116 static volatile int received_nb_signals = 0;
119 sigterm_handler(int sig)
121 received_sigterm = sig;
122 received_nb_signals++;
126 static void term_init(void)
128 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
129 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
131 signal(SIGXCPU, sigterm_handler);
135 static int decode_interrupt_cb(void *ctx)
137 return received_nb_signals > 1;
140 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
142 static void avconv_cleanup(int ret)
146 for (i = 0; i < nb_filtergraphs; i++) {
147 FilterGraph *fg = filtergraphs[i];
148 avfilter_graph_free(&fg->graph);
149 for (j = 0; j < fg->nb_inputs; j++) {
150 av_freep(&fg->inputs[j]->name);
151 av_freep(&fg->inputs[j]);
153 av_freep(&fg->inputs);
154 for (j = 0; j < fg->nb_outputs; j++) {
155 av_freep(&fg->outputs[j]->name);
156 av_freep(&fg->outputs[j]);
158 av_freep(&fg->outputs);
159 av_freep(&fg->graph_desc);
161 av_freep(&filtergraphs[i]);
163 av_freep(&filtergraphs);
166 for (i = 0; i < nb_output_files; i++) {
167 OutputFile *of = output_files[i];
168 AVFormatContext *s = of->ctx;
169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avformat_free_context(s);
172 av_dict_free(&of->opts);
174 av_freep(&output_files[i]);
176 for (i = 0; i < nb_output_streams; i++) {
177 OutputStream *ost = output_streams[i];
178 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
180 AVBitStreamFilterContext *next = bsfc->next;
181 av_bitstream_filter_close(bsfc);
184 ost->bitstream_filters = NULL;
185 av_frame_free(&ost->filtered_frame);
187 av_parser_close(ost->parser);
189 av_freep(&ost->forced_keyframes);
190 av_freep(&ost->avfilter);
191 av_freep(&ost->logfile_prefix);
193 avcodec_free_context(&ost->enc_ctx);
195 av_freep(&output_streams[i]);
197 for (i = 0; i < nb_input_files; i++) {
198 avformat_close_input(&input_files[i]->ctx);
199 av_freep(&input_files[i]);
201 for (i = 0; i < nb_input_streams; i++) {
202 InputStream *ist = input_streams[i];
204 av_frame_free(&ist->decoded_frame);
205 av_frame_free(&ist->filter_frame);
206 av_dict_free(&ist->decoder_opts);
207 av_freep(&ist->filters);
208 av_freep(&ist->hwaccel_device);
210 avcodec_free_context(&ist->dec_ctx);
212 av_freep(&input_streams[i]);
217 av_free(vstats_filename);
219 av_freep(&input_streams);
220 av_freep(&input_files);
221 av_freep(&output_streams);
222 av_freep(&output_files);
226 avformat_network_deinit();
228 if (received_sigterm) {
229 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
230 (int) received_sigterm);
235 void assert_avoptions(AVDictionary *m)
237 AVDictionaryEntry *t;
238 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
239 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
244 static void abort_codec_experimental(AVCodec *c, int encoder)
246 const char *codec_string = encoder ? "encoder" : "decoder";
248 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
249 "results.\nAdd '-strict experimental' if you want to use it.\n",
250 codec_string, c->name);
251 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
252 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
253 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
254 codec_string, codec->name);
258 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
260 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
261 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
265 * Audio encoders may split the packets -- #frames in != #packets out.
266 * But there is no reordering, so we can limit the number of output packets
267 * by simply dropping them here.
268 * Counting encoded video frames needs to be done separately because of
269 * reordering, see do_video_out()
271 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
272 if (ost->frame_number >= ost->max_frames) {
278 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
279 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
281 ost->quality = sd ? *(int *)sd : -1;
285 AVPacket new_pkt = *pkt;
286 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
287 &new_pkt.data, &new_pkt.size,
288 pkt->data, pkt->size,
289 pkt->flags & AV_PKT_FLAG_KEY);
292 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
293 av_buffer_default_free, NULL, 0);
297 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
298 bsfc->filter->name, pkt->stream_index,
299 avctx->codec ? avctx->codec->name : "copy");
309 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
310 ost->last_mux_dts != AV_NOPTS_VALUE &&
311 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
312 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
313 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
314 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
316 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
319 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
320 "in incorrect timestamps in the output file.\n",
321 ost->last_mux_dts + 1);
322 pkt->dts = ost->last_mux_dts + 1;
323 if (pkt->pts != AV_NOPTS_VALUE)
324 pkt->pts = FFMAX(pkt->pts, pkt->dts);
326 ost->last_mux_dts = pkt->dts;
328 ost->data_size += pkt->size;
329 ost->packets_written++;
331 pkt->stream_index = ost->index;
332 ret = av_interleaved_write_frame(s, pkt);
334 print_error("av_interleaved_write_frame()", ret);
339 static int check_recording_time(OutputStream *ost)
341 OutputFile *of = output_files[ost->file_index];
343 if (of->recording_time != INT64_MAX &&
344 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
345 AV_TIME_BASE_Q) >= 0) {
352 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
355 AVCodecContext *enc = ost->enc_ctx;
359 av_init_packet(&pkt);
363 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
364 frame->pts = ost->sync_opts;
365 ost->sync_opts = frame->pts + frame->nb_samples;
367 ost->samples_encoded += frame->nb_samples;
368 ost->frames_encoded++;
370 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
371 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
376 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
377 write_frame(s, &pkt, ost);
381 static void do_subtitle_out(AVFormatContext *s,
387 static uint8_t *subtitle_out = NULL;
388 int subtitle_out_max_size = 1024 * 1024;
389 int subtitle_out_size, nb, i;
393 if (pts == AV_NOPTS_VALUE) {
394 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
403 subtitle_out = av_malloc(subtitle_out_max_size);
406 /* Note: DVB subtitle need one packet to draw them and one other
407 packet to clear them */
408 /* XXX: signal it in the codec context ? */
409 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
414 for (i = 0; i < nb; i++) {
415 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
416 if (!check_recording_time(ost))
419 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
420 // start_display_time is required to be 0
421 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
422 sub->end_display_time -= sub->start_display_time;
423 sub->start_display_time = 0;
425 ost->frames_encoded++;
427 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
428 subtitle_out_max_size, sub);
429 if (subtitle_out_size < 0) {
430 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
434 av_init_packet(&pkt);
435 pkt.data = subtitle_out;
436 pkt.size = subtitle_out_size;
437 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
438 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
439 /* XXX: the pts correction is handled here. Maybe handling
440 it in the codec would be better */
442 pkt.pts += 90 * sub->start_display_time;
444 pkt.pts += 90 * sub->end_display_time;
446 write_frame(s, &pkt, ost);
450 static void do_video_out(AVFormatContext *s,
455 int ret, format_video_sync, got_packet;
457 AVCodecContext *enc = ost->enc_ctx;
461 format_video_sync = video_sync_method;
462 if (format_video_sync == VSYNC_AUTO)
463 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
464 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
465 if (format_video_sync != VSYNC_PASSTHROUGH &&
467 in_picture->pts != AV_NOPTS_VALUE &&
468 in_picture->pts < ost->sync_opts) {
470 av_log(NULL, AV_LOG_WARNING,
471 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
472 ost->frame_number, ost->st->index, in_picture->pts);
476 if (in_picture->pts == AV_NOPTS_VALUE)
477 in_picture->pts = ost->sync_opts;
478 ost->sync_opts = in_picture->pts;
481 if (!ost->frame_number)
482 ost->first_pts = in_picture->pts;
484 av_init_packet(&pkt);
488 if (ost->frame_number >= ost->max_frames)
491 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
492 ost->top_field_first >= 0)
493 in_picture->top_field_first = !!ost->top_field_first;
495 in_picture->quality = enc->global_quality;
496 in_picture->pict_type = 0;
497 if (ost->forced_kf_index < ost->forced_kf_count &&
498 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
499 in_picture->pict_type = AV_PICTURE_TYPE_I;
500 ost->forced_kf_index++;
503 ost->frames_encoded++;
505 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
507 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
512 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
513 write_frame(s, &pkt, ost);
514 *frame_size = pkt.size;
516 /* if two pass, output log */
517 if (ost->logfile && enc->stats_out) {
518 fprintf(ost->logfile, "%s", enc->stats_out);
524 * For video, number of frames in == number of packets out.
525 * But there may be reordering, so we can't throw away frames on encoder
526 * flush, we need to limit them here, before they go into encoder.
531 static double psnr(double d)
533 return -10.0 * log(d) / log(10.0);
536 static void do_video_stats(OutputStream *ost, int frame_size)
540 double ti1, bitrate, avg_bitrate;
542 /* this is executed just the first time do_video_stats is called */
544 vstats_file = fopen(vstats_filename, "w");
552 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
553 frame_number = ost->frame_number;
554 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
555 ost->quality / (float)FF_QP2LAMBDA);
557 #if FF_API_CODED_FRAME
558 FF_DISABLE_DEPRECATION_WARNINGS
559 if (enc->flags & AV_CODEC_FLAG_PSNR)
560 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
561 FF_ENABLE_DEPRECATION_WARNINGS
564 fprintf(vstats_file,"f_size= %6d ", frame_size);
565 /* compute pts value */
566 ti1 = ost->sync_opts * av_q2d(enc->time_base);
570 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
571 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
572 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
573 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
574 #if FF_API_CODED_FRAME
575 FF_DISABLE_DEPRECATION_WARNINGS
576 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
577 FF_ENABLE_DEPRECATION_WARNINGS
583 * Read one frame for lavfi output for ost and encode it.
585 static int poll_filter(OutputStream *ost)
587 OutputFile *of = output_files[ost->file_index];
588 AVFrame *filtered_frame = NULL;
591 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
592 return AVERROR(ENOMEM);
594 filtered_frame = ost->filtered_frame;
596 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
597 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
598 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
599 ost->enc_ctx->frame_size);
601 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
606 if (filtered_frame->pts != AV_NOPTS_VALUE) {
607 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
608 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
609 ost->filter->filter->inputs[0]->time_base,
610 ost->enc_ctx->time_base) -
611 av_rescale_q(start_time,
613 ost->enc_ctx->time_base);
616 switch (ost->filter->filter->inputs[0]->type) {
617 case AVMEDIA_TYPE_VIDEO:
618 if (!ost->frame_aspect_ratio)
619 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
621 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
622 if (vstats_filename && frame_size)
623 do_video_stats(ost, frame_size);
625 case AVMEDIA_TYPE_AUDIO:
626 do_audio_out(of->ctx, ost, filtered_frame);
629 // TODO support subtitle filters
633 av_frame_unref(filtered_frame);
638 static void finish_output_stream(OutputStream *ost)
640 OutputFile *of = output_files[ost->file_index];
646 for (i = 0; i < of->ctx->nb_streams; i++)
647 output_streams[of->ost_index + i]->finished = 1;
652 * Read as many frames from possible from lavfi and encode them.
654 * Always read from the active stream with the lowest timestamp. If no frames
655 * are available for it then return EAGAIN and wait for more input. This way we
656 * can use lavfi sources that generate unlimited amount of frames without memory
659 static int poll_filters(void)
663 while (ret >= 0 && !received_sigterm) {
664 OutputStream *ost = NULL;
665 int64_t min_pts = INT64_MAX;
667 /* choose output stream with the lowest timestamp */
668 for (i = 0; i < nb_output_streams; i++) {
669 int64_t pts = output_streams[i]->sync_opts;
671 if (!output_streams[i]->filter || output_streams[i]->finished)
674 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
678 ost = output_streams[i];
685 ret = poll_filter(ost);
687 if (ret == AVERROR_EOF) {
688 finish_output_stream(ost);
690 } else if (ret == AVERROR(EAGAIN))
697 static void print_final_stats(int64_t total_size)
699 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
700 uint64_t data_size = 0;
701 float percent = -1.0;
704 for (i = 0; i < nb_output_streams; i++) {
705 OutputStream *ost = output_streams[i];
706 switch (ost->enc_ctx->codec_type) {
707 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
708 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
709 default: other_size += ost->data_size; break;
711 extra_size += ost->enc_ctx->extradata_size;
712 data_size += ost->data_size;
715 if (data_size && total_size >= data_size)
716 percent = 100.0 * (total_size - data_size) / data_size;
718 av_log(NULL, AV_LOG_INFO, "\n");
719 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
723 extra_size / 1024.0);
725 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
727 av_log(NULL, AV_LOG_INFO, "unknown");
728 av_log(NULL, AV_LOG_INFO, "\n");
730 /* print verbose per-stream stats */
731 for (i = 0; i < nb_input_files; i++) {
732 InputFile *f = input_files[i];
733 uint64_t total_packets = 0, total_size = 0;
735 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
736 i, f->ctx->filename);
738 for (j = 0; j < f->nb_streams; j++) {
739 InputStream *ist = input_streams[f->ist_index + j];
740 enum AVMediaType type = ist->dec_ctx->codec_type;
742 total_size += ist->data_size;
743 total_packets += ist->nb_packets;
745 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
746 i, j, media_type_string(type));
747 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
748 ist->nb_packets, ist->data_size);
750 if (ist->decoding_needed) {
751 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
752 ist->frames_decoded);
753 if (type == AVMEDIA_TYPE_AUDIO)
754 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
755 av_log(NULL, AV_LOG_VERBOSE, "; ");
758 av_log(NULL, AV_LOG_VERBOSE, "\n");
761 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
762 total_packets, total_size);
765 for (i = 0; i < nb_output_files; i++) {
766 OutputFile *of = output_files[i];
767 uint64_t total_packets = 0, total_size = 0;
769 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
770 i, of->ctx->filename);
772 for (j = 0; j < of->ctx->nb_streams; j++) {
773 OutputStream *ost = output_streams[of->ost_index + j];
774 enum AVMediaType type = ost->enc_ctx->codec_type;
776 total_size += ost->data_size;
777 total_packets += ost->packets_written;
779 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
780 i, j, media_type_string(type));
781 if (ost->encoding_needed) {
782 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
783 ost->frames_encoded);
784 if (type == AVMEDIA_TYPE_AUDIO)
785 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
786 av_log(NULL, AV_LOG_VERBOSE, "; ");
789 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
790 ost->packets_written, ost->data_size);
792 av_log(NULL, AV_LOG_VERBOSE, "\n");
795 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
796 total_packets, total_size);
800 static void print_report(int is_last_report, int64_t timer_start)
807 int frame_number, vid, i;
808 double bitrate, ti1, pts;
809 static int64_t last_time = -1;
810 static int qp_histogram[52];
812 if (!print_stats && !is_last_report)
815 if (!is_last_report) {
817 /* display the report every 0.5 seconds */
818 cur_time = av_gettime_relative();
819 if (last_time == -1) {
820 last_time = cur_time;
823 if ((cur_time - last_time) < 500000)
825 last_time = cur_time;
829 oc = output_files[0]->ctx;
831 total_size = avio_size(oc->pb);
832 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
833 total_size = avio_tell(oc->pb);
834 if (total_size < 0) {
836 av_strerror(total_size, errbuf, sizeof(errbuf));
837 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
838 "avio_tell() failed: %s\n", errbuf);
845 for (i = 0; i < nb_output_streams; i++) {
847 ost = output_streams[i];
849 if (!ost->stream_copy)
850 q = ost->quality / (float) FF_QP2LAMBDA;
852 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
853 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
855 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
856 float t = (av_gettime_relative() - timer_start) / 1000000.0;
858 frame_number = ost->frame_number;
859 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
860 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
862 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
866 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
868 for (j = 0; j < 32; j++)
869 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
872 #if FF_API_CODED_FRAME
873 FF_DISABLE_DEPRECATION_WARNINGS
874 if (enc->flags & AV_CODEC_FLAG_PSNR) {
876 double error, error_sum = 0;
877 double scale, scale_sum = 0;
878 char type[3] = { 'Y','U','V' };
879 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
880 for (j = 0; j < 3; j++) {
881 if (is_last_report) {
882 error = enc->error[j];
883 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
885 error = enc->coded_frame->error[j];
886 scale = enc->width * enc->height * 255.0 * 255.0;
892 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
894 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
896 FF_ENABLE_DEPRECATION_WARNINGS
900 /* compute min output value */
901 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
902 if ((pts < ti1) && (pts > 0))
908 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
910 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
911 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
912 (double)total_size / 1024, ti1, bitrate);
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
918 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
923 print_final_stats(total_size);
927 static void flush_encoders(void)
931 for (i = 0; i < nb_output_streams; i++) {
932 OutputStream *ost = output_streams[i];
933 AVCodecContext *enc = ost->enc_ctx;
934 AVFormatContext *os = output_files[ost->file_index]->ctx;
935 int stop_encoding = 0;
937 if (!ost->encoding_needed)
940 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
944 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
947 switch (enc->codec_type) {
948 case AVMEDIA_TYPE_AUDIO:
949 encode = avcodec_encode_audio2;
952 case AVMEDIA_TYPE_VIDEO:
953 encode = avcodec_encode_video2;
963 av_init_packet(&pkt);
967 ret = encode(enc, &pkt, NULL, &got_packet);
969 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
972 if (ost->logfile && enc->stats_out) {
973 fprintf(ost->logfile, "%s", enc->stats_out);
979 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
980 write_frame(os, &pkt, ost);
990 * Check whether a packet from ist should be written into ost at this time
992 static int check_output_constraints(InputStream *ist, OutputStream *ost)
994 OutputFile *of = output_files[ost->file_index];
995 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
997 if (ost->source_index != ist_index)
1000 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1006 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1008 OutputFile *of = output_files[ost->file_index];
1009 InputFile *f = input_files [ist->file_index];
1010 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1011 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1014 av_init_packet(&opkt);
1016 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1017 !ost->copy_initial_nonkeyframes)
1020 if (of->recording_time != INT64_MAX &&
1021 ist->last_dts >= of->recording_time + start_time) {
1026 if (f->recording_time != INT64_MAX) {
1027 start_time = f->ctx->start_time;
1028 if (f->start_time != AV_NOPTS_VALUE)
1029 start_time += f->start_time;
1030 if (ist->last_dts >= f->recording_time + start_time) {
1036 /* force the input stream PTS */
1037 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1040 if (pkt->pts != AV_NOPTS_VALUE)
1041 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1043 opkt.pts = AV_NOPTS_VALUE;
1045 if (pkt->dts == AV_NOPTS_VALUE)
1046 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1048 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1049 opkt.dts -= ost_tb_start_time;
1051 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1052 opkt.flags = pkt->flags;
1054 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1055 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1056 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1057 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1058 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1060 if (av_parser_change(ost->parser, ost->st->codec,
1061 &opkt.data, &opkt.size,
1062 pkt->data, pkt->size,
1063 pkt->flags & AV_PKT_FLAG_KEY)) {
1064 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1069 opkt.data = pkt->data;
1070 opkt.size = pkt->size;
1073 write_frame(of->ctx, &opkt, ost);
1076 int guess_input_channel_layout(InputStream *ist)
1078 AVCodecContext *dec = ist->dec_ctx;
1080 if (!dec->channel_layout) {
1081 char layout_name[256];
1083 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1084 if (!dec->channel_layout)
1086 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1087 dec->channels, dec->channel_layout);
1088 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1089 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1094 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1096 AVFrame *decoded_frame, *f;
1097 AVCodecContext *avctx = ist->dec_ctx;
1098 int i, ret, err = 0, resample_changed;
1100 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1101 return AVERROR(ENOMEM);
1102 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1103 return AVERROR(ENOMEM);
1104 decoded_frame = ist->decoded_frame;
1106 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1107 if (!*got_output || ret < 0)
1110 ist->samples_decoded += decoded_frame->nb_samples;
1111 ist->frames_decoded++;
1113 /* if the decoder provides a pts, use it instead of the last packet pts.
1114 the decoder could be delaying output by a packet or more. */
1115 if (decoded_frame->pts != AV_NOPTS_VALUE)
1116 ist->next_dts = decoded_frame->pts;
1117 else if (pkt->pts != AV_NOPTS_VALUE)
1118 decoded_frame->pts = pkt->pts;
1119 pkt->pts = AV_NOPTS_VALUE;
1121 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1122 ist->resample_channels != avctx->channels ||
1123 ist->resample_channel_layout != decoded_frame->channel_layout ||
1124 ist->resample_sample_rate != decoded_frame->sample_rate;
1125 if (resample_changed) {
1126 char layout1[64], layout2[64];
1128 if (!guess_input_channel_layout(ist)) {
1129 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1130 "layout for Input Stream #%d.%d\n", ist->file_index,
1134 decoded_frame->channel_layout = avctx->channel_layout;
1136 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1137 ist->resample_channel_layout);
1138 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1139 decoded_frame->channel_layout);
1141 av_log(NULL, AV_LOG_INFO,
1142 "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",
1143 ist->file_index, ist->st->index,
1144 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1145 ist->resample_channels, layout1,
1146 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1147 avctx->channels, layout2);
1149 ist->resample_sample_fmt = decoded_frame->format;
1150 ist->resample_sample_rate = decoded_frame->sample_rate;
1151 ist->resample_channel_layout = decoded_frame->channel_layout;
1152 ist->resample_channels = avctx->channels;
1154 for (i = 0; i < nb_filtergraphs; i++)
1155 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1156 configure_filtergraph(filtergraphs[i]) < 0) {
1157 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1162 if (decoded_frame->pts != AV_NOPTS_VALUE)
1163 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1165 (AVRational){1, avctx->sample_rate});
1166 ist->nb_samples = decoded_frame->nb_samples;
1167 for (i = 0; i < ist->nb_filters; i++) {
1168 if (i < ist->nb_filters - 1) {
1169 f = ist->filter_frame;
1170 err = av_frame_ref(f, decoded_frame);
1176 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1181 av_frame_unref(ist->filter_frame);
1182 av_frame_unref(decoded_frame);
1183 return err < 0 ? err : ret;
1186 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1188 AVFrame *decoded_frame, *f;
1189 int i, ret = 0, err = 0, resample_changed;
1191 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1192 return AVERROR(ENOMEM);
1193 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1194 return AVERROR(ENOMEM);
1195 decoded_frame = ist->decoded_frame;
1197 ret = avcodec_decode_video2(ist->dec_ctx,
1198 decoded_frame, got_output, pkt);
1199 if (!*got_output || ret < 0)
1202 ist->frames_decoded++;
1204 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1205 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1209 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1211 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1212 decoded_frame->pkt_dts);
1215 if (ist->st->sample_aspect_ratio.num)
1216 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1218 resample_changed = ist->resample_width != decoded_frame->width ||
1219 ist->resample_height != decoded_frame->height ||
1220 ist->resample_pix_fmt != decoded_frame->format;
1221 if (resample_changed) {
1222 av_log(NULL, AV_LOG_INFO,
1223 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1224 ist->file_index, ist->st->index,
1225 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1226 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1228 ret = poll_filters();
1229 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1231 av_strerror(ret, errbuf, sizeof(errbuf));
1233 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1236 ist->resample_width = decoded_frame->width;
1237 ist->resample_height = decoded_frame->height;
1238 ist->resample_pix_fmt = decoded_frame->format;
1240 for (i = 0; i < nb_filtergraphs; i++)
1241 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1242 configure_filtergraph(filtergraphs[i]) < 0) {
1243 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1248 for (i = 0; i < ist->nb_filters; i++) {
1249 if (i < ist->nb_filters - 1) {
1250 f = ist->filter_frame;
1251 err = av_frame_ref(f, decoded_frame);
1257 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1263 av_frame_unref(ist->filter_frame);
1264 av_frame_unref(decoded_frame);
1265 return err < 0 ? err : ret;
1268 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1270 AVSubtitle subtitle;
1271 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1272 &subtitle, got_output, pkt);
1278 ist->frames_decoded++;
1280 for (i = 0; i < nb_output_streams; i++) {
1281 OutputStream *ost = output_streams[i];
1283 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1286 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1289 avsubtitle_free(&subtitle);
1293 static int send_filter_eof(InputStream *ist)
1296 for (i = 0; i < ist->nb_filters; i++) {
1297 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1304 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1305 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1311 if (ist->next_dts == AV_NOPTS_VALUE)
1312 ist->next_dts = ist->last_dts;
1316 av_init_packet(&avpkt);
1324 if (pkt->dts != AV_NOPTS_VALUE)
1325 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1327 // while we have more to decode or while the decoder did output something on EOF
1328 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1332 ist->last_dts = ist->next_dts;
1334 if (avpkt.size && avpkt.size != pkt->size &&
1335 !(ist->dec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
1336 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1337 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1338 ist->showed_multi_packet_warning = 1;
1341 switch (ist->dec_ctx->codec_type) {
1342 case AVMEDIA_TYPE_AUDIO:
1343 ret = decode_audio (ist, &avpkt, &got_output);
1345 case AVMEDIA_TYPE_VIDEO:
1346 ret = decode_video (ist, &avpkt, &got_output);
1348 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1349 else if (ist->st->avg_frame_rate.num)
1350 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1352 else if (ist->dec_ctx->framerate.num != 0) {
1353 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1354 ist->dec_ctx->ticks_per_frame;
1355 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1358 case AVMEDIA_TYPE_SUBTITLE:
1359 ret = transcode_subtitles(ist, &avpkt, &got_output);
1366 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1367 ist->file_index, ist->st->index);
1373 // touch data and size only if not EOF
1383 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1384 /* except when looping we need to flush but not to send an EOF */
1385 if (!pkt && ist->decoding_needed && !no_eof) {
1386 int ret = send_filter_eof(ist);
1388 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1393 /* handle stream copy */
1394 if (!ist->decoding_needed) {
1395 ist->last_dts = ist->next_dts;
1396 switch (ist->dec_ctx->codec_type) {
1397 case AVMEDIA_TYPE_AUDIO:
1398 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1399 ist->dec_ctx->sample_rate;
1401 case AVMEDIA_TYPE_VIDEO:
1402 if (ist->dec_ctx->framerate.num != 0) {
1403 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1404 ist->next_dts += ((int64_t)AV_TIME_BASE *
1405 ist->dec_ctx->framerate.den * ticks) /
1406 ist->dec_ctx->framerate.num;
1411 for (i = 0; pkt && i < nb_output_streams; i++) {
1412 OutputStream *ost = output_streams[i];
1414 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1417 do_streamcopy(ist, ost, pkt);
1423 static void print_sdp(void)
1427 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1431 for (i = 0; i < nb_output_files; i++)
1432 avc[i] = output_files[i]->ctx;
1434 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1435 printf("SDP:\n%s\n", sdp);
1440 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1443 for (i = 0; hwaccels[i].name; i++)
1444 if (hwaccels[i].pix_fmt == pix_fmt)
1445 return &hwaccels[i];
1449 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1451 InputStream *ist = s->opaque;
1452 const enum AVPixelFormat *p;
1455 for (p = pix_fmts; *p != -1; p++) {
1456 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1457 const HWAccel *hwaccel;
1459 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1462 hwaccel = get_hwaccel(*p);
1464 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1465 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1468 ret = hwaccel->init(s);
1470 if (ist->hwaccel_id == hwaccel->id) {
1471 av_log(NULL, AV_LOG_FATAL,
1472 "%s hwaccel requested for input stream #%d:%d, "
1473 "but cannot be initialized.\n", hwaccel->name,
1474 ist->file_index, ist->st->index);
1475 return AV_PIX_FMT_NONE;
1479 ist->active_hwaccel_id = hwaccel->id;
1480 ist->hwaccel_pix_fmt = *p;
1487 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1489 InputStream *ist = s->opaque;
1491 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1492 return ist->hwaccel_get_buffer(s, frame, flags);
1494 return avcodec_default_get_buffer2(s, frame, flags);
1497 static int init_input_stream(int ist_index, char *error, int error_len)
1500 InputStream *ist = input_streams[ist_index];
1501 if (ist->decoding_needed) {
1502 AVCodec *codec = ist->dec;
1504 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1505 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1506 return AVERROR(EINVAL);
1509 ist->dec_ctx->opaque = ist;
1510 ist->dec_ctx->get_format = get_format;
1511 ist->dec_ctx->get_buffer2 = get_buffer;
1512 ist->dec_ctx->thread_safe_callbacks = 1;
1514 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1516 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1517 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1518 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1520 if (ret == AVERROR_EXPERIMENTAL)
1521 abort_codec_experimental(codec, 0);
1523 av_strerror(ret, errbuf, sizeof(errbuf));
1525 snprintf(error, error_len,
1526 "Error while opening decoder for input stream "
1528 ist->file_index, ist->st->index, errbuf);
1531 assert_avoptions(ist->decoder_opts);
1534 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1535 ist->next_dts = AV_NOPTS_VALUE;
1536 init_pts_correction(&ist->pts_ctx);
1541 static InputStream *get_input_stream(OutputStream *ost)
1543 if (ost->source_index >= 0)
1544 return input_streams[ost->source_index];
1547 FilterGraph *fg = ost->filter->graph;
1550 for (i = 0; i < fg->nb_inputs; i++)
1551 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1552 return fg->inputs[i]->ist;
1558 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1562 if (ost->encoding_needed) {
1563 AVCodec *codec = ost->enc;
1564 AVCodecContext *dec = NULL;
1567 if ((ist = get_input_stream(ost)))
1569 if (dec && dec->subtitle_header) {
1570 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1571 if (!ost->enc_ctx->subtitle_header)
1572 return AVERROR(ENOMEM);
1573 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1574 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1576 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1577 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1579 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1580 if (ret == AVERROR_EXPERIMENTAL)
1581 abort_codec_experimental(codec, 1);
1582 snprintf(error, error_len,
1583 "Error while opening encoder for output stream #%d:%d - "
1584 "maybe incorrect parameters such as bit_rate, rate, width or height",
1585 ost->file_index, ost->index);
1588 assert_avoptions(ost->encoder_opts);
1589 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1590 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1591 "It takes bits/s as argument, not kbits/s\n");
1593 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1595 av_log(NULL, AV_LOG_FATAL,
1596 "Error initializing the output stream codec context.\n");
1600 ost->st->time_base = ost->enc_ctx->time_base;
1602 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1605 ost->st->time_base = ost->st->codec->time_base;
1611 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1612 AVCodecContext *avctx)
1618 for (p = kf; *p; p++)
1621 ost->forced_kf_count = n;
1622 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1623 if (!ost->forced_kf_pts) {
1624 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1629 for (i = 0; i < n; i++) {
1630 char *next = strchr(p, ',');
1635 t = parse_time_or_die("force_key_frames", p, 1);
1636 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1642 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1644 AVDictionaryEntry *e;
1646 uint8_t *encoder_string;
1647 int encoder_string_len;
1648 int format_flags = 0;
1650 e = av_dict_get(of->opts, "fflags", NULL, 0);
1652 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1655 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1658 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1659 encoder_string = av_mallocz(encoder_string_len);
1660 if (!encoder_string)
1663 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1664 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1665 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1666 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1667 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1670 static int transcode_init(void)
1672 int ret = 0, i, j, k;
1673 AVFormatContext *oc;
1679 /* init framerate emulation */
1680 for (i = 0; i < nb_input_files; i++) {
1681 InputFile *ifile = input_files[i];
1682 if (ifile->rate_emu)
1683 for (j = 0; j < ifile->nb_streams; j++)
1684 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1687 /* for each output stream, we compute the right encoding parameters */
1688 for (i = 0; i < nb_output_streams; i++) {
1689 AVCodecContext *enc_ctx;
1690 AVCodecContext *dec_ctx = NULL;
1691 ost = output_streams[i];
1692 oc = output_files[ost->file_index]->ctx;
1693 ist = get_input_stream(ost);
1695 if (ost->attachment_filename)
1698 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
1701 dec_ctx = ist->dec_ctx;
1703 ost->st->disposition = ist->st->disposition;
1704 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1705 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1708 if (ost->stream_copy) {
1710 uint64_t extra_size;
1712 av_assert0(ist && !ost->filter);
1714 extra_size = (uint64_t)dec_ctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1716 if (extra_size > INT_MAX) {
1717 return AVERROR(EINVAL);
1720 /* if stream_copy is selected, no need to decode or encode */
1721 enc_ctx->codec_id = dec_ctx->codec_id;
1722 enc_ctx->codec_type = dec_ctx->codec_type;
1724 if (!enc_ctx->codec_tag) {
1725 if (!oc->oformat->codec_tag ||
1726 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1727 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1728 enc_ctx->codec_tag = dec_ctx->codec_tag;
1731 enc_ctx->bit_rate = dec_ctx->bit_rate;
1732 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1733 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1734 enc_ctx->field_order = dec_ctx->field_order;
1735 enc_ctx->extradata = av_mallocz(extra_size);
1736 if (!enc_ctx->extradata) {
1737 return AVERROR(ENOMEM);
1739 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1740 enc_ctx->extradata_size = dec_ctx->extradata_size;
1742 enc_ctx->time_base = dec_ctx->time_base;
1743 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1744 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1745 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1747 enc_ctx->time_base = ist->st->time_base;
1749 if (ist->st->nb_side_data) {
1750 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1751 sizeof(*ist->st->side_data));
1752 if (!ost->st->side_data)
1753 return AVERROR(ENOMEM);
1755 for (j = 0; j < ist->st->nb_side_data; j++) {
1756 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1757 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1759 sd_dst->data = av_malloc(sd_src->size);
1761 return AVERROR(ENOMEM);
1762 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1763 sd_dst->size = sd_src->size;
1764 sd_dst->type = sd_src->type;
1765 ost->st->nb_side_data++;
1769 ost->parser = av_parser_init(enc_ctx->codec_id);
1771 switch (enc_ctx->codec_type) {
1772 case AVMEDIA_TYPE_AUDIO:
1773 if (audio_volume != 256) {
1774 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1777 enc_ctx->channel_layout = dec_ctx->channel_layout;
1778 enc_ctx->sample_rate = dec_ctx->sample_rate;
1779 enc_ctx->channels = dec_ctx->channels;
1780 enc_ctx->frame_size = dec_ctx->frame_size;
1781 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1782 enc_ctx->block_align = dec_ctx->block_align;
1784 case AVMEDIA_TYPE_VIDEO:
1785 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1786 enc_ctx->width = dec_ctx->width;
1787 enc_ctx->height = dec_ctx->height;
1788 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1789 if (ost->frame_aspect_ratio)
1790 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1791 else if (ist->st->sample_aspect_ratio.num)
1792 sar = ist->st->sample_aspect_ratio;
1794 sar = dec_ctx->sample_aspect_ratio;
1795 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1797 case AVMEDIA_TYPE_SUBTITLE:
1798 enc_ctx->width = dec_ctx->width;
1799 enc_ctx->height = dec_ctx->height;
1801 case AVMEDIA_TYPE_DATA:
1802 case AVMEDIA_TYPE_ATTACHMENT:
1809 /* should only happen when a default codec is not present. */
1810 snprintf(error, sizeof(error), "Automatic encoder selection "
1811 "failed for output stream #%d:%d. Default encoder for "
1812 "format %s is probably disabled. Please choose an "
1813 "encoder manually.\n", ost->file_index, ost->index,
1815 ret = AVERROR(EINVAL);
1819 set_encoder_id(output_files[ost->file_index], ost);
1822 * We want CFR output if and only if one of those is true:
1823 * 1) user specified output framerate with -r
1824 * 2) user specified -vsync cfr
1825 * 3) output format is CFR and the user didn't force vsync to
1826 * something else than CFR
1828 * in such a case, set ost->frame_rate
1830 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1831 !ost->frame_rate.num && ist &&
1832 (video_sync_method == VSYNC_CFR ||
1833 (video_sync_method == VSYNC_AUTO &&
1834 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1835 if (ist->framerate.num)
1836 ost->frame_rate = ist->framerate;
1837 else if (ist->st->avg_frame_rate.num)
1838 ost->frame_rate = ist->st->avg_frame_rate;
1840 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1841 "for the output stream #%d:%d, but no information "
1842 "about the input framerate is available. Falling "
1843 "back to a default value of 25fps. Use the -r option "
1844 "if you want a different framerate.\n",
1845 ost->file_index, ost->index);
1846 ost->frame_rate = (AVRational){ 25, 1 };
1849 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1850 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1851 ost->frame_rate = ost->enc->supported_framerates[idx];
1856 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1857 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1859 fg = init_simple_filtergraph(ist, ost);
1860 if (configure_filtergraph(fg)) {
1861 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1866 switch (enc_ctx->codec_type) {
1867 case AVMEDIA_TYPE_AUDIO:
1868 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1869 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1870 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1871 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1872 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1874 case AVMEDIA_TYPE_VIDEO:
1875 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1877 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1878 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1879 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1880 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1881 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1882 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1883 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1885 ost->st->avg_frame_rate = ost->frame_rate;
1888 (enc_ctx->width != dec_ctx->width ||
1889 enc_ctx->height != dec_ctx->height ||
1890 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1891 enc_ctx->bits_per_raw_sample = 0;
1894 if (ost->forced_keyframes)
1895 parse_forced_key_frames(ost->forced_keyframes, ost,
1898 case AVMEDIA_TYPE_SUBTITLE:
1899 enc_ctx->time_base = (AVRational){1, 1000};
1908 /* open each encoder */
1909 for (i = 0; i < nb_output_streams; i++) {
1910 ret = init_output_stream(output_streams[i], error, sizeof(error));
1915 /* init input streams */
1916 for (i = 0; i < nb_input_streams; i++)
1917 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1920 /* discard unused programs */
1921 for (i = 0; i < nb_input_files; i++) {
1922 InputFile *ifile = input_files[i];
1923 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1924 AVProgram *p = ifile->ctx->programs[j];
1925 int discard = AVDISCARD_ALL;
1927 for (k = 0; k < p->nb_stream_indexes; k++)
1928 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1929 discard = AVDISCARD_DEFAULT;
1932 p->discard = discard;
1936 /* open files and write file headers */
1937 for (i = 0; i < nb_output_files; i++) {
1938 oc = output_files[i]->ctx;
1939 oc->interrupt_callback = int_cb;
1940 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1942 av_strerror(ret, errbuf, sizeof(errbuf));
1943 snprintf(error, sizeof(error),
1944 "Could not write header for output file #%d "
1945 "(incorrect codec parameters ?): %s",
1947 ret = AVERROR(EINVAL);
1950 assert_avoptions(output_files[i]->opts);
1951 if (strcmp(oc->oformat->name, "rtp")) {
1957 /* dump the file output parameters - cannot be done before in case
1959 for (i = 0; i < nb_output_files; i++) {
1960 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1963 /* dump the stream mapping */
1964 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1965 for (i = 0; i < nb_input_streams; i++) {
1966 ist = input_streams[i];
1968 for (j = 0; j < ist->nb_filters; j++) {
1969 if (ist->filters[j]->graph->graph_desc) {
1970 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1971 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1972 ist->filters[j]->name);
1973 if (nb_filtergraphs > 1)
1974 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1975 av_log(NULL, AV_LOG_INFO, "\n");
1980 for (i = 0; i < nb_output_streams; i++) {
1981 ost = output_streams[i];
1983 if (ost->attachment_filename) {
1984 /* an attached file */
1985 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1986 ost->attachment_filename, ost->file_index, ost->index);
1990 if (ost->filter && ost->filter->graph->graph_desc) {
1991 /* output from a complex graph */
1992 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1993 if (nb_filtergraphs > 1)
1994 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1996 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1997 ost->index, ost->enc ? ost->enc->name : "?");
2001 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2002 input_streams[ost->source_index]->file_index,
2003 input_streams[ost->source_index]->st->index,
2006 if (ost->sync_ist != input_streams[ost->source_index])
2007 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2008 ost->sync_ist->file_index,
2009 ost->sync_ist->st->index);
2010 if (ost->stream_copy)
2011 av_log(NULL, AV_LOG_INFO, " (copy)");
2013 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2014 const AVCodec *out_codec = ost->enc;
2015 const char *decoder_name = "?";
2016 const char *in_codec_name = "?";
2017 const char *encoder_name = "?";
2018 const char *out_codec_name = "?";
2019 const AVCodecDescriptor *desc;
2022 decoder_name = in_codec->name;
2023 desc = avcodec_descriptor_get(in_codec->id);
2025 in_codec_name = desc->name;
2026 if (!strcmp(decoder_name, in_codec_name))
2027 decoder_name = "native";
2031 encoder_name = out_codec->name;
2032 desc = avcodec_descriptor_get(out_codec->id);
2034 out_codec_name = desc->name;
2035 if (!strcmp(encoder_name, out_codec_name))
2036 encoder_name = "native";
2039 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2040 in_codec_name, decoder_name,
2041 out_codec_name, encoder_name);
2043 av_log(NULL, AV_LOG_INFO, "\n");
2047 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2058 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2059 static int need_output(void)
2063 for (i = 0; i < nb_output_streams; i++) {
2064 OutputStream *ost = output_streams[i];
2065 OutputFile *of = output_files[ost->file_index];
2066 AVFormatContext *os = output_files[ost->file_index]->ctx;
2068 if (ost->finished ||
2069 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2071 if (ost->frame_number >= ost->max_frames) {
2073 for (j = 0; j < of->ctx->nb_streams; j++)
2074 output_streams[of->ost_index + j]->finished = 1;
2084 static InputFile *select_input_file(void)
2086 InputFile *ifile = NULL;
2087 int64_t ipts_min = INT64_MAX;
2090 for (i = 0; i < nb_input_streams; i++) {
2091 InputStream *ist = input_streams[i];
2092 int64_t ipts = ist->last_dts;
2094 if (ist->discard || input_files[ist->file_index]->eagain)
2096 if (!input_files[ist->file_index]->eof_reached) {
2097 if (ipts < ipts_min) {
2099 ifile = input_files[ist->file_index];
2108 static void *input_thread(void *arg)
2113 while (!transcoding_finished && ret >= 0) {
2115 ret = av_read_frame(f->ctx, &pkt);
2117 if (ret == AVERROR(EAGAIN)) {
2124 pthread_mutex_lock(&f->fifo_lock);
2125 while (!av_fifo_space(f->fifo))
2126 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2128 av_dup_packet(&pkt);
2129 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2131 pthread_mutex_unlock(&f->fifo_lock);
2138 static void free_input_threads(void)
2142 if (nb_input_files == 1)
2145 transcoding_finished = 1;
2147 for (i = 0; i < nb_input_files; i++) {
2148 InputFile *f = input_files[i];
2151 if (!f->fifo || f->joined)
2154 pthread_mutex_lock(&f->fifo_lock);
2155 while (av_fifo_size(f->fifo)) {
2156 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2157 av_free_packet(&pkt);
2159 pthread_cond_signal(&f->fifo_cond);
2160 pthread_mutex_unlock(&f->fifo_lock);
2162 pthread_join(f->thread, NULL);
2165 while (av_fifo_size(f->fifo)) {
2166 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2167 av_free_packet(&pkt);
2169 av_fifo_free(f->fifo);
2173 static int init_input_threads(void)
2177 if (nb_input_files == 1)
2180 for (i = 0; i < nb_input_files; i++) {
2181 InputFile *f = input_files[i];
2183 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2184 return AVERROR(ENOMEM);
2186 pthread_mutex_init(&f->fifo_lock, NULL);
2187 pthread_cond_init (&f->fifo_cond, NULL);
2189 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2190 return AVERROR(ret);
2195 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2199 pthread_mutex_lock(&f->fifo_lock);
2201 if (av_fifo_size(f->fifo)) {
2202 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2203 pthread_cond_signal(&f->fifo_cond);
2208 ret = AVERROR(EAGAIN);
2211 pthread_mutex_unlock(&f->fifo_lock);
2217 static int get_input_packet(InputFile *f, AVPacket *pkt)
2221 for (i = 0; i < f->nb_streams; i++) {
2222 InputStream *ist = input_streams[f->ist_index + i];
2223 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2224 int64_t now = av_gettime_relative() - ist->start;
2226 return AVERROR(EAGAIN);
2231 if (nb_input_files > 1)
2232 return get_input_packet_mt(f, pkt);
2234 return av_read_frame(f->ctx, pkt);
2237 static int got_eagain(void)
2240 for (i = 0; i < nb_input_files; i++)
2241 if (input_files[i]->eagain)
2246 static void reset_eagain(void)
2249 for (i = 0; i < nb_input_files; i++)
2250 input_files[i]->eagain = 0;
2253 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2254 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2255 AVRational time_base)
2261 return tmp_time_base;
2264 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2267 return tmp_time_base;
2273 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2276 AVCodecContext *avctx;
2277 int i, ret, has_audio = 0;
2278 int64_t duration = 0;
2280 ret = av_seek_frame(is, -1, is->start_time, 0);
2284 for (i = 0; i < ifile->nb_streams; i++) {
2285 ist = input_streams[ifile->ist_index + i];
2286 avctx = ist->dec_ctx;
2289 if (ist->decoding_needed) {
2290 process_input_packet(ist, NULL, 1);
2291 avcodec_flush_buffers(avctx);
2294 /* duration is the length of the last frame in a stream
2295 * when audio stream is present we don't care about
2296 * last video frame length because it's not defined exactly */
2297 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2301 for (i = 0; i < ifile->nb_streams; i++) {
2302 ist = input_streams[ifile->ist_index + i];
2303 avctx = ist->dec_ctx;
2306 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2307 AVRational sample_rate = {1, avctx->sample_rate};
2309 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2313 if (ist->framerate.num) {
2314 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2315 } else if (ist->st->avg_frame_rate.num) {
2316 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2317 } else duration = 1;
2319 if (!ifile->duration)
2320 ifile->time_base = ist->st->time_base;
2321 /* the total duration of the stream, max_pts - min_pts is
2322 * the duration of the stream without the last frame */
2323 duration += ist->max_pts - ist->min_pts;
2324 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2334 * Read one packet from an input file and send it for
2335 * - decoding -> lavfi (audio/video)
2336 * - decoding -> encoding -> muxing (subtitles)
2337 * - muxing (streamcopy)
2340 * - 0 -- one packet was read and processed
2341 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2342 * this function should be called again
2343 * - AVERROR_EOF -- this function should not be called again
2345 static int process_input(void)
2348 AVFormatContext *is;
2354 /* select the stream that we must read now */
2355 ifile = select_input_file();
2356 /* if none, if is finished */
2361 return AVERROR(EAGAIN);
2363 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2368 ret = get_input_packet(ifile, &pkt);
2370 if (ret == AVERROR(EAGAIN)) {
2374 if ((ret < 0) && (ifile->loop > 1)) {
2375 if ((ret = seek_to_start(ifile, is)) < 0)
2377 ret = get_input_packet(ifile, &pkt);
2380 if (ret != AVERROR_EOF) {
2381 print_error(is->filename, ret);
2385 ifile->eof_reached = 1;
2387 for (i = 0; i < ifile->nb_streams; i++) {
2388 ist = input_streams[ifile->ist_index + i];
2389 if (ist->decoding_needed)
2390 process_input_packet(ist, NULL, 0);
2392 /* mark all outputs that don't go through lavfi as finished */
2393 for (j = 0; j < nb_output_streams; j++) {
2394 OutputStream *ost = output_streams[j];
2396 if (ost->source_index == ifile->ist_index + i &&
2397 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2398 finish_output_stream(ost);
2402 return AVERROR(EAGAIN);
2408 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2409 is->streams[pkt.stream_index]);
2411 /* the following test is needed in case new streams appear
2412 dynamically in stream : we ignore them */
2413 if (pkt.stream_index >= ifile->nb_streams)
2414 goto discard_packet;
2416 ist = input_streams[ifile->ist_index + pkt.stream_index];
2418 ist->data_size += pkt.size;
2422 goto discard_packet;
2424 /* add the stream-global side data to the first packet */
2425 if (ist->nb_packets == 1)
2426 for (i = 0; i < ist->st->nb_side_data; i++) {
2427 AVPacketSideData *src_sd = &ist->st->side_data[i];
2430 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2432 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2435 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2439 memcpy(dst_data, src_sd->data, src_sd->size);
2442 if (pkt.dts != AV_NOPTS_VALUE)
2443 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2444 if (pkt.pts != AV_NOPTS_VALUE)
2445 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2447 if (pkt.pts != AV_NOPTS_VALUE)
2448 pkt.pts *= ist->ts_scale;
2449 if (pkt.dts != AV_NOPTS_VALUE)
2450 pkt.dts *= ist->ts_scale;
2452 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2453 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2454 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2455 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2456 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2457 int64_t delta = pkt_dts - ist->next_dts;
2459 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2460 ifile->ts_offset -= delta;
2461 av_log(NULL, AV_LOG_DEBUG,
2462 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2463 delta, ifile->ts_offset);
2464 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2465 if (pkt.pts != AV_NOPTS_VALUE)
2466 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2469 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2470 if (pkt.pts != AV_NOPTS_VALUE) {
2471 pkt.pts += duration;
2472 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2473 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2476 if (pkt.dts != AV_NOPTS_VALUE)
2477 pkt.dts += duration;
2479 process_input_packet(ist, &pkt, 0);
2482 av_free_packet(&pkt);
2488 * The following code is the main loop of the file converter
2490 static int transcode(void)
2492 int ret, i, need_input = 1;
2493 AVFormatContext *os;
2496 int64_t timer_start;
2498 ret = transcode_init();
2502 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2505 timer_start = av_gettime_relative();
2508 if ((ret = init_input_threads()) < 0)
2512 while (!received_sigterm) {
2513 /* check if there's any stream where output is still needed */
2514 if (!need_output()) {
2515 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2519 /* read and process one input packet if needed */
2521 ret = process_input();
2522 if (ret == AVERROR_EOF)
2526 ret = poll_filters();
2528 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
2532 av_strerror(ret, errbuf, sizeof(errbuf));
2534 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2539 /* dump report by using the output first video and audio streams */
2540 print_report(0, timer_start);
2543 free_input_threads();
2546 /* at the end of stream, we must flush the decoder buffers */
2547 for (i = 0; i < nb_input_streams; i++) {
2548 ist = input_streams[i];
2549 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2550 process_input_packet(ist, NULL, 0);
2558 /* write the trailer if needed and close file */
2559 for (i = 0; i < nb_output_files; i++) {
2560 os = output_files[i]->ctx;
2561 av_write_trailer(os);
2564 /* dump report by using the first video and audio streams */
2565 print_report(1, timer_start);
2567 /* close each encoder */
2568 for (i = 0; i < nb_output_streams; i++) {
2569 ost = output_streams[i];
2570 if (ost->encoding_needed) {
2571 av_freep(&ost->enc_ctx->stats_in);
2575 /* close each decoder */
2576 for (i = 0; i < nb_input_streams; i++) {
2577 ist = input_streams[i];
2578 if (ist->decoding_needed) {
2579 avcodec_close(ist->dec_ctx);
2580 if (ist->hwaccel_uninit)
2581 ist->hwaccel_uninit(ist->dec_ctx);
2590 free_input_threads();
2593 if (output_streams) {
2594 for (i = 0; i < nb_output_streams; i++) {
2595 ost = output_streams[i];
2598 fclose(ost->logfile);
2599 ost->logfile = NULL;
2601 av_free(ost->forced_kf_pts);
2602 av_dict_free(&ost->encoder_opts);
2603 av_dict_free(&ost->resample_opts);
2610 static int64_t getutime(void)
2613 struct rusage rusage;
2615 getrusage(RUSAGE_SELF, &rusage);
2616 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2617 #elif HAVE_GETPROCESSTIMES
2619 FILETIME c, e, k, u;
2620 proc = GetCurrentProcess();
2621 GetProcessTimes(proc, &c, &e, &k, &u);
2622 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2624 return av_gettime_relative();
2628 static int64_t getmaxrss(void)
2630 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2631 struct rusage rusage;
2632 getrusage(RUSAGE_SELF, &rusage);
2633 return (int64_t)rusage.ru_maxrss * 1024;
2634 #elif HAVE_GETPROCESSMEMORYINFO
2636 PROCESS_MEMORY_COUNTERS memcounters;
2637 proc = GetCurrentProcess();
2638 memcounters.cb = sizeof(memcounters);
2639 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2640 return memcounters.PeakPagefileUsage;
2646 int main(int argc, char **argv)
2651 register_exit(avconv_cleanup);
2653 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2654 parse_loglevel(argc, argv, options);
2656 avcodec_register_all();
2658 avdevice_register_all();
2660 avfilter_register_all();
2662 avformat_network_init();
2666 /* parse options and open all input/output files */
2667 ret = avconv_parse_options(argc, argv);
2671 if (nb_output_files <= 0 && nb_input_files == 0) {
2673 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2677 /* file converter / grab */
2678 if (nb_output_files <= 0) {
2679 fprintf(stderr, "At least one output file must be specified\n");
2684 if (transcode() < 0)
2686 ti = getutime() - ti;
2688 int maxrss = getmaxrss() / 1024;
2689 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);