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];
179 for (j = 0; j < ost->nb_bitstream_filters; j++)
180 av_bsf_free(&ost->bsf_ctx[j]);
181 av_freep(&ost->bsf_ctx);
182 av_freep(&ost->bitstream_filters);
184 av_frame_free(&ost->filtered_frame);
186 av_parser_close(ost->parser);
188 av_freep(&ost->forced_keyframes);
189 av_freep(&ost->avfilter);
190 av_freep(&ost->logfile_prefix);
192 avcodec_free_context(&ost->enc_ctx);
194 av_freep(&output_streams[i]);
196 for (i = 0; i < nb_input_files; i++) {
197 avformat_close_input(&input_files[i]->ctx);
198 av_freep(&input_files[i]);
200 for (i = 0; i < nb_input_streams; i++) {
201 InputStream *ist = input_streams[i];
203 av_frame_free(&ist->decoded_frame);
204 av_frame_free(&ist->filter_frame);
205 av_dict_free(&ist->decoder_opts);
206 av_freep(&ist->filters);
207 av_freep(&ist->hwaccel_device);
209 avcodec_free_context(&ist->dec_ctx);
211 av_freep(&input_streams[i]);
216 av_free(vstats_filename);
218 av_freep(&input_streams);
219 av_freep(&input_files);
220 av_freep(&output_streams);
221 av_freep(&output_files);
225 avformat_network_deinit();
227 if (received_sigterm) {
228 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
229 (int) received_sigterm);
234 void assert_avoptions(AVDictionary *m)
236 AVDictionaryEntry *t;
237 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
238 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
243 static void abort_codec_experimental(AVCodec *c, int encoder)
245 const char *codec_string = encoder ? "encoder" : "decoder";
247 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
248 "results.\nAdd '-strict experimental' if you want to use it.\n",
249 codec_string, c->name);
250 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
251 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
252 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
253 codec_string, codec->name);
257 static void write_packet(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
259 AVStream *st = ost->st;
263 * Audio encoders may split the packets -- #frames in != #packets out.
264 * But there is no reordering, so we can limit the number of output packets
265 * by simply dropping them here.
266 * Counting encoded video frames needs to be done separately because of
267 * reordering, see do_video_out()
269 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {
270 if (ost->frame_number >= ost->max_frames) {
271 av_packet_unref(pkt);
276 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
277 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
279 ost->quality = sd ? *(int *)sd : -1;
281 if (ost->frame_rate.num) {
282 pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
287 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
288 ost->last_mux_dts != AV_NOPTS_VALUE &&
289 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
290 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
291 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
292 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
294 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
297 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
298 "in incorrect timestamps in the output file.\n",
299 ost->last_mux_dts + 1);
300 pkt->dts = ost->last_mux_dts + 1;
301 if (pkt->pts != AV_NOPTS_VALUE)
302 pkt->pts = FFMAX(pkt->pts, pkt->dts);
304 ost->last_mux_dts = pkt->dts;
306 ost->data_size += pkt->size;
307 ost->packets_written++;
309 pkt->stream_index = ost->index;
310 ret = av_interleaved_write_frame(s, pkt);
312 print_error("av_interleaved_write_frame()", ret);
317 static void output_packet(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
321 /* apply the output bitstream filters, if any */
322 if (ost->nb_bitstream_filters) {
325 ret = av_bsf_send_packet(ost->bsf_ctx[0], pkt);
331 /* get a packet from the previous filter up the chain */
332 ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
333 if (ret == AVERROR(EAGAIN)) {
340 /* send it to the next filter down the chain or to the muxer */
341 if (idx < ost->nb_bitstream_filters) {
342 ret = av_bsf_send_packet(ost->bsf_ctx[idx], pkt);
347 write_packet(s, pkt, ost);
350 write_packet(s, pkt, ost);
353 if (ret < 0 && ret != AVERROR_EOF) {
354 av_log(NULL, AV_LOG_FATAL, "Error applying bitstream filters to an output "
355 "packet for stream #%d:%d.\n", ost->file_index, ost->index);
360 static int check_recording_time(OutputStream *ost)
362 OutputFile *of = output_files[ost->file_index];
364 if (of->recording_time != INT64_MAX &&
365 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
366 AV_TIME_BASE_Q) >= 0) {
373 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
376 AVCodecContext *enc = ost->enc_ctx;
380 av_init_packet(&pkt);
384 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
385 frame->pts = ost->sync_opts;
386 ost->sync_opts = frame->pts + frame->nb_samples;
388 ost->samples_encoded += frame->nb_samples;
389 ost->frames_encoded++;
391 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
392 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
397 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
398 output_packet(s, &pkt, ost);
402 static void do_subtitle_out(AVFormatContext *s,
408 static uint8_t *subtitle_out = NULL;
409 int subtitle_out_max_size = 1024 * 1024;
410 int subtitle_out_size, nb, i;
414 if (pts == AV_NOPTS_VALUE) {
415 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
424 subtitle_out = av_malloc(subtitle_out_max_size);
427 /* Note: DVB subtitle need one packet to draw them and one other
428 packet to clear them */
429 /* XXX: signal it in the codec context ? */
430 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
435 for (i = 0; i < nb; i++) {
436 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
437 if (!check_recording_time(ost))
440 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
441 // start_display_time is required to be 0
442 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
443 sub->end_display_time -= sub->start_display_time;
444 sub->start_display_time = 0;
446 ost->frames_encoded++;
448 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
449 subtitle_out_max_size, sub);
450 if (subtitle_out_size < 0) {
451 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
455 av_init_packet(&pkt);
456 pkt.data = subtitle_out;
457 pkt.size = subtitle_out_size;
458 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
459 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
460 /* XXX: the pts correction is handled here. Maybe handling
461 it in the codec would be better */
463 pkt.pts += 90 * sub->start_display_time;
465 pkt.pts += 90 * sub->end_display_time;
467 output_packet(s, &pkt, ost);
471 static void do_video_out(AVFormatContext *s,
476 int ret, format_video_sync, got_packet;
478 AVCodecContext *enc = ost->enc_ctx;
482 format_video_sync = video_sync_method;
483 if (format_video_sync == VSYNC_AUTO)
484 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
485 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
486 if (format_video_sync != VSYNC_PASSTHROUGH &&
488 in_picture->pts != AV_NOPTS_VALUE &&
489 in_picture->pts < ost->sync_opts) {
491 av_log(NULL, AV_LOG_WARNING,
492 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
493 ost->frame_number, ost->st->index, in_picture->pts);
497 if (in_picture->pts == AV_NOPTS_VALUE)
498 in_picture->pts = ost->sync_opts;
499 ost->sync_opts = in_picture->pts;
502 if (!ost->frame_number)
503 ost->first_pts = in_picture->pts;
505 av_init_packet(&pkt);
509 if (ost->frame_number >= ost->max_frames)
512 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
513 ost->top_field_first >= 0)
514 in_picture->top_field_first = !!ost->top_field_first;
516 in_picture->quality = enc->global_quality;
517 in_picture->pict_type = 0;
518 if (ost->forced_kf_index < ost->forced_kf_count &&
519 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
520 in_picture->pict_type = AV_PICTURE_TYPE_I;
521 ost->forced_kf_index++;
524 ost->frames_encoded++;
526 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
528 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
533 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
534 output_packet(s, &pkt, ost);
535 *frame_size = pkt.size;
537 /* if two pass, output log */
538 if (ost->logfile && enc->stats_out) {
539 fprintf(ost->logfile, "%s", enc->stats_out);
545 * For video, number of frames in == number of packets out.
546 * But there may be reordering, so we can't throw away frames on encoder
547 * flush, we need to limit them here, before they go into encoder.
552 static double psnr(double d)
554 return -10.0 * log(d) / log(10.0);
557 static void do_video_stats(OutputStream *ost, int frame_size)
561 double ti1, bitrate, avg_bitrate;
563 /* this is executed just the first time do_video_stats is called */
565 vstats_file = fopen(vstats_filename, "w");
573 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
574 frame_number = ost->frame_number;
575 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
576 ost->quality / (float)FF_QP2LAMBDA);
578 #if FF_API_CODED_FRAME
579 FF_DISABLE_DEPRECATION_WARNINGS
580 if (enc->flags & AV_CODEC_FLAG_PSNR)
581 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
582 FF_ENABLE_DEPRECATION_WARNINGS
585 fprintf(vstats_file,"f_size= %6d ", frame_size);
586 /* compute pts value */
587 ti1 = ost->sync_opts * av_q2d(enc->time_base);
591 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
592 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
593 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
594 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
595 #if FF_API_CODED_FRAME
596 FF_DISABLE_DEPRECATION_WARNINGS
597 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
598 FF_ENABLE_DEPRECATION_WARNINGS
604 * Read one frame for lavfi output for ost and encode it.
606 static int poll_filter(OutputStream *ost)
608 OutputFile *of = output_files[ost->file_index];
609 AVFrame *filtered_frame = NULL;
612 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
613 return AVERROR(ENOMEM);
615 filtered_frame = ost->filtered_frame;
617 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
618 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
619 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
620 ost->enc_ctx->frame_size);
622 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
627 if (filtered_frame->pts != AV_NOPTS_VALUE) {
628 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
629 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
630 ost->filter->filter->inputs[0]->time_base,
631 ost->enc_ctx->time_base) -
632 av_rescale_q(start_time,
634 ost->enc_ctx->time_base);
637 switch (ost->filter->filter->inputs[0]->type) {
638 case AVMEDIA_TYPE_VIDEO:
639 if (!ost->frame_aspect_ratio)
640 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
642 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
643 if (vstats_filename && frame_size)
644 do_video_stats(ost, frame_size);
646 case AVMEDIA_TYPE_AUDIO:
647 do_audio_out(of->ctx, ost, filtered_frame);
650 // TODO support subtitle filters
654 av_frame_unref(filtered_frame);
659 static void finish_output_stream(OutputStream *ost)
661 OutputFile *of = output_files[ost->file_index];
667 for (i = 0; i < of->ctx->nb_streams; i++)
668 output_streams[of->ost_index + i]->finished = 1;
673 * Read as many frames from possible from lavfi and encode them.
675 * Always read from the active stream with the lowest timestamp. If no frames
676 * are available for it then return EAGAIN and wait for more input. This way we
677 * can use lavfi sources that generate unlimited amount of frames without memory
680 static int poll_filters(void)
684 while (ret >= 0 && !received_sigterm) {
685 OutputStream *ost = NULL;
686 int64_t min_pts = INT64_MAX;
688 /* choose output stream with the lowest timestamp */
689 for (i = 0; i < nb_output_streams; i++) {
690 int64_t pts = output_streams[i]->sync_opts;
692 if (!output_streams[i]->filter || output_streams[i]->finished)
695 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
699 ost = output_streams[i];
706 ret = poll_filter(ost);
708 if (ret == AVERROR_EOF) {
709 finish_output_stream(ost);
711 } else if (ret == AVERROR(EAGAIN))
718 static void print_final_stats(int64_t total_size)
720 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
721 uint64_t data_size = 0;
722 float percent = -1.0;
725 for (i = 0; i < nb_output_streams; i++) {
726 OutputStream *ost = output_streams[i];
727 switch (ost->enc_ctx->codec_type) {
728 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
729 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
730 default: other_size += ost->data_size; break;
732 extra_size += ost->enc_ctx->extradata_size;
733 data_size += ost->data_size;
736 if (data_size && total_size >= data_size)
737 percent = 100.0 * (total_size - data_size) / data_size;
739 av_log(NULL, AV_LOG_INFO, "\n");
740 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
744 extra_size / 1024.0);
746 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
748 av_log(NULL, AV_LOG_INFO, "unknown");
749 av_log(NULL, AV_LOG_INFO, "\n");
751 /* print verbose per-stream stats */
752 for (i = 0; i < nb_input_files; i++) {
753 InputFile *f = input_files[i];
754 uint64_t total_packets = 0, total_size = 0;
756 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
757 i, f->ctx->filename);
759 for (j = 0; j < f->nb_streams; j++) {
760 InputStream *ist = input_streams[f->ist_index + j];
761 enum AVMediaType type = ist->dec_ctx->codec_type;
763 total_size += ist->data_size;
764 total_packets += ist->nb_packets;
766 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
767 i, j, media_type_string(type));
768 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
769 ist->nb_packets, ist->data_size);
771 if (ist->decoding_needed) {
772 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
773 ist->frames_decoded);
774 if (type == AVMEDIA_TYPE_AUDIO)
775 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
776 av_log(NULL, AV_LOG_VERBOSE, "; ");
779 av_log(NULL, AV_LOG_VERBOSE, "\n");
782 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
783 total_packets, total_size);
786 for (i = 0; i < nb_output_files; i++) {
787 OutputFile *of = output_files[i];
788 uint64_t total_packets = 0, total_size = 0;
790 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
791 i, of->ctx->filename);
793 for (j = 0; j < of->ctx->nb_streams; j++) {
794 OutputStream *ost = output_streams[of->ost_index + j];
795 enum AVMediaType type = ost->enc_ctx->codec_type;
797 total_size += ost->data_size;
798 total_packets += ost->packets_written;
800 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
801 i, j, media_type_string(type));
802 if (ost->encoding_needed) {
803 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
804 ost->frames_encoded);
805 if (type == AVMEDIA_TYPE_AUDIO)
806 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
807 av_log(NULL, AV_LOG_VERBOSE, "; ");
810 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
811 ost->packets_written, ost->data_size);
813 av_log(NULL, AV_LOG_VERBOSE, "\n");
816 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
817 total_packets, total_size);
821 static void print_report(int is_last_report, int64_t timer_start)
828 int frame_number, vid, i;
829 double bitrate, ti1, pts;
830 static int64_t last_time = -1;
831 static int qp_histogram[52];
833 if (!print_stats && !is_last_report)
836 if (!is_last_report) {
838 /* display the report every 0.5 seconds */
839 cur_time = av_gettime_relative();
840 if (last_time == -1) {
841 last_time = cur_time;
844 if ((cur_time - last_time) < 500000)
846 last_time = cur_time;
850 oc = output_files[0]->ctx;
852 total_size = avio_size(oc->pb);
853 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
854 total_size = avio_tell(oc->pb);
855 if (total_size < 0) {
857 av_strerror(total_size, errbuf, sizeof(errbuf));
858 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
859 "avio_tell() failed: %s\n", errbuf);
866 for (i = 0; i < nb_output_streams; i++) {
868 ost = output_streams[i];
870 if (!ost->stream_copy)
871 q = ost->quality / (float) FF_QP2LAMBDA;
873 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
874 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
876 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
877 float t = (av_gettime_relative() - timer_start) / 1000000.0;
879 frame_number = ost->frame_number;
880 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
881 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
883 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
887 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
889 for (j = 0; j < 32; j++)
890 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
893 #if FF_API_CODED_FRAME
894 FF_DISABLE_DEPRECATION_WARNINGS
895 if (enc->flags & AV_CODEC_FLAG_PSNR) {
897 double error, error_sum = 0;
898 double scale, scale_sum = 0;
899 char type[3] = { 'Y','U','V' };
900 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
901 for (j = 0; j < 3; j++) {
902 if (is_last_report) {
903 error = enc->error[j];
904 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
906 error = enc->coded_frame->error[j];
907 scale = enc->width * enc->height * 255.0 * 255.0;
913 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
917 FF_ENABLE_DEPRECATION_WARNINGS
921 /* compute min output value */
922 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
923 if ((pts < ti1) && (pts > 0))
929 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
931 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
932 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
933 (double)total_size / 1024, ti1, bitrate);
936 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
939 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
944 print_final_stats(total_size);
948 static void flush_encoders(void)
952 for (i = 0; i < nb_output_streams; i++) {
953 OutputStream *ost = output_streams[i];
954 AVCodecContext *enc = ost->enc_ctx;
955 AVFormatContext *os = output_files[ost->file_index]->ctx;
956 int stop_encoding = 0;
958 if (!ost->encoding_needed)
961 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
965 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
968 switch (enc->codec_type) {
969 case AVMEDIA_TYPE_AUDIO:
970 encode = avcodec_encode_audio2;
973 case AVMEDIA_TYPE_VIDEO:
974 encode = avcodec_encode_video2;
984 av_init_packet(&pkt);
988 ret = encode(enc, &pkt, NULL, &got_packet);
990 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
993 if (ost->logfile && enc->stats_out) {
994 fprintf(ost->logfile, "%s", enc->stats_out);
1000 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1001 output_packet(os, &pkt, ost);
1011 * Check whether a packet from ist should be written into ost at this time
1013 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1015 OutputFile *of = output_files[ost->file_index];
1016 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1018 if (ost->source_index != ist_index)
1021 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1027 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1029 OutputFile *of = output_files[ost->file_index];
1030 InputFile *f = input_files [ist->file_index];
1031 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1032 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1035 av_init_packet(&opkt);
1037 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1038 !ost->copy_initial_nonkeyframes)
1041 if (of->recording_time != INT64_MAX &&
1042 ist->last_dts >= of->recording_time + start_time) {
1047 if (f->recording_time != INT64_MAX) {
1048 start_time = f->ctx->start_time;
1049 if (f->start_time != AV_NOPTS_VALUE)
1050 start_time += f->start_time;
1051 if (ist->last_dts >= f->recording_time + start_time) {
1057 /* force the input stream PTS */
1058 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1061 if (pkt->pts != AV_NOPTS_VALUE)
1062 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1064 opkt.pts = AV_NOPTS_VALUE;
1066 if (pkt->dts == AV_NOPTS_VALUE)
1067 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1069 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1070 opkt.dts -= ost_tb_start_time;
1072 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1073 opkt.flags = pkt->flags;
1075 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1076 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1077 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1078 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1079 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1081 if (av_parser_change(ost->parser, ost->st->codec,
1082 &opkt.data, &opkt.size,
1083 pkt->data, pkt->size,
1084 pkt->flags & AV_PKT_FLAG_KEY)) {
1085 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1090 opkt.data = pkt->data;
1091 opkt.size = pkt->size;
1094 output_packet(of->ctx, &opkt, ost);
1097 int guess_input_channel_layout(InputStream *ist)
1099 AVCodecContext *dec = ist->dec_ctx;
1101 if (!dec->channel_layout) {
1102 char layout_name[256];
1104 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1105 if (!dec->channel_layout)
1107 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1108 dec->channels, dec->channel_layout);
1109 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1110 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1115 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1117 AVFrame *decoded_frame, *f;
1118 AVCodecContext *avctx = ist->dec_ctx;
1119 int i, ret, err = 0, resample_changed;
1121 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1122 return AVERROR(ENOMEM);
1123 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1124 return AVERROR(ENOMEM);
1125 decoded_frame = ist->decoded_frame;
1127 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1128 if (!*got_output || ret < 0)
1131 ist->samples_decoded += decoded_frame->nb_samples;
1132 ist->frames_decoded++;
1134 /* if the decoder provides a pts, use it instead of the last packet pts.
1135 the decoder could be delaying output by a packet or more. */
1136 if (decoded_frame->pts != AV_NOPTS_VALUE)
1137 ist->next_dts = decoded_frame->pts;
1138 else if (pkt->pts != AV_NOPTS_VALUE)
1139 decoded_frame->pts = pkt->pts;
1140 pkt->pts = AV_NOPTS_VALUE;
1142 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1143 ist->resample_channels != avctx->channels ||
1144 ist->resample_channel_layout != decoded_frame->channel_layout ||
1145 ist->resample_sample_rate != decoded_frame->sample_rate;
1146 if (resample_changed) {
1147 char layout1[64], layout2[64];
1149 if (!guess_input_channel_layout(ist)) {
1150 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1151 "layout for Input Stream #%d.%d\n", ist->file_index,
1155 decoded_frame->channel_layout = avctx->channel_layout;
1157 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1158 ist->resample_channel_layout);
1159 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1160 decoded_frame->channel_layout);
1162 av_log(NULL, AV_LOG_INFO,
1163 "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",
1164 ist->file_index, ist->st->index,
1165 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1166 ist->resample_channels, layout1,
1167 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1168 avctx->channels, layout2);
1170 ist->resample_sample_fmt = decoded_frame->format;
1171 ist->resample_sample_rate = decoded_frame->sample_rate;
1172 ist->resample_channel_layout = decoded_frame->channel_layout;
1173 ist->resample_channels = avctx->channels;
1175 for (i = 0; i < nb_filtergraphs; i++)
1176 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1177 configure_filtergraph(filtergraphs[i]) < 0) {
1178 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1183 if (decoded_frame->pts != AV_NOPTS_VALUE)
1184 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1186 (AVRational){1, avctx->sample_rate});
1187 ist->nb_samples = decoded_frame->nb_samples;
1188 for (i = 0; i < ist->nb_filters; i++) {
1189 if (i < ist->nb_filters - 1) {
1190 f = ist->filter_frame;
1191 err = av_frame_ref(f, decoded_frame);
1197 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1202 av_frame_unref(ist->filter_frame);
1203 av_frame_unref(decoded_frame);
1204 return err < 0 ? err : ret;
1207 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1209 AVFrame *decoded_frame, *f;
1210 int i, ret = 0, err = 0, resample_changed;
1212 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1213 return AVERROR(ENOMEM);
1214 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1215 return AVERROR(ENOMEM);
1216 decoded_frame = ist->decoded_frame;
1218 ret = avcodec_decode_video2(ist->dec_ctx,
1219 decoded_frame, got_output, pkt);
1220 if (!*got_output || ret < 0)
1223 ist->frames_decoded++;
1225 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1226 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1230 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1232 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1233 decoded_frame->pkt_dts);
1236 if (ist->st->sample_aspect_ratio.num)
1237 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1239 resample_changed = ist->resample_width != decoded_frame->width ||
1240 ist->resample_height != decoded_frame->height ||
1241 ist->resample_pix_fmt != decoded_frame->format;
1242 if (resample_changed) {
1243 av_log(NULL, AV_LOG_INFO,
1244 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1245 ist->file_index, ist->st->index,
1246 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1247 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1249 ret = poll_filters();
1250 if (ret < 0 && ret != AVERROR_EOF) {
1252 av_strerror(ret, errbuf, sizeof(errbuf));
1254 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1257 ist->resample_width = decoded_frame->width;
1258 ist->resample_height = decoded_frame->height;
1259 ist->resample_pix_fmt = decoded_frame->format;
1261 for (i = 0; i < nb_filtergraphs; i++)
1262 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1263 configure_filtergraph(filtergraphs[i]) < 0) {
1264 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1269 for (i = 0; i < ist->nb_filters; i++) {
1270 if (i < ist->nb_filters - 1) {
1271 f = ist->filter_frame;
1272 err = av_frame_ref(f, decoded_frame);
1278 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1284 av_frame_unref(ist->filter_frame);
1285 av_frame_unref(decoded_frame);
1286 return err < 0 ? err : ret;
1289 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1291 AVSubtitle subtitle;
1292 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1293 &subtitle, got_output, pkt);
1299 ist->frames_decoded++;
1301 for (i = 0; i < nb_output_streams; i++) {
1302 OutputStream *ost = output_streams[i];
1304 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1307 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1310 avsubtitle_free(&subtitle);
1314 static int send_filter_eof(InputStream *ist)
1317 for (i = 0; i < ist->nb_filters; i++) {
1318 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1325 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1326 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1332 if (ist->next_dts == AV_NOPTS_VALUE)
1333 ist->next_dts = ist->last_dts;
1337 av_init_packet(&avpkt);
1345 if (pkt->dts != AV_NOPTS_VALUE)
1346 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1348 // while we have more to decode or while the decoder did output something on EOF
1349 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1353 ist->last_dts = ist->next_dts;
1355 switch (ist->dec_ctx->codec_type) {
1356 case AVMEDIA_TYPE_AUDIO:
1357 ret = decode_audio (ist, &avpkt, &got_output);
1359 case AVMEDIA_TYPE_VIDEO:
1360 ret = decode_video (ist, &avpkt, &got_output);
1362 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1363 else if (ist->st->avg_frame_rate.num)
1364 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1366 else if (ist->dec_ctx->framerate.num != 0) {
1367 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1368 ist->dec_ctx->ticks_per_frame;
1369 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1372 case AVMEDIA_TYPE_SUBTITLE:
1373 ret = transcode_subtitles(ist, &avpkt, &got_output);
1380 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1381 ist->file_index, ist->st->index);
1387 // touch data and size only if not EOF
1397 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1398 /* except when looping we need to flush but not to send an EOF */
1399 if (!pkt && ist->decoding_needed && !no_eof) {
1400 int ret = send_filter_eof(ist);
1402 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1407 /* handle stream copy */
1408 if (!ist->decoding_needed) {
1409 ist->last_dts = ist->next_dts;
1410 switch (ist->dec_ctx->codec_type) {
1411 case AVMEDIA_TYPE_AUDIO:
1412 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1413 ist->dec_ctx->sample_rate;
1415 case AVMEDIA_TYPE_VIDEO:
1416 if (ist->dec_ctx->framerate.num != 0) {
1417 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1418 ist->next_dts += ((int64_t)AV_TIME_BASE *
1419 ist->dec_ctx->framerate.den * ticks) /
1420 ist->dec_ctx->framerate.num;
1425 for (i = 0; pkt && i < nb_output_streams; i++) {
1426 OutputStream *ost = output_streams[i];
1428 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1431 do_streamcopy(ist, ost, pkt);
1437 static void print_sdp(void)
1441 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1445 for (i = 0; i < nb_output_files; i++)
1446 avc[i] = output_files[i]->ctx;
1448 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1449 printf("SDP:\n%s\n", sdp);
1454 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1457 for (i = 0; hwaccels[i].name; i++)
1458 if (hwaccels[i].pix_fmt == pix_fmt)
1459 return &hwaccels[i];
1463 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1465 InputStream *ist = s->opaque;
1466 const enum AVPixelFormat *p;
1469 for (p = pix_fmts; *p != -1; p++) {
1470 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1471 const HWAccel *hwaccel;
1473 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1476 hwaccel = get_hwaccel(*p);
1478 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1479 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1482 ret = hwaccel->init(s);
1484 if (ist->hwaccel_id == hwaccel->id) {
1485 av_log(NULL, AV_LOG_FATAL,
1486 "%s hwaccel requested for input stream #%d:%d, "
1487 "but cannot be initialized.\n", hwaccel->name,
1488 ist->file_index, ist->st->index);
1489 return AV_PIX_FMT_NONE;
1493 ist->active_hwaccel_id = hwaccel->id;
1494 ist->hwaccel_pix_fmt = *p;
1501 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1503 InputStream *ist = s->opaque;
1505 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1506 return ist->hwaccel_get_buffer(s, frame, flags);
1508 return avcodec_default_get_buffer2(s, frame, flags);
1511 static int init_input_stream(int ist_index, char *error, int error_len)
1514 InputStream *ist = input_streams[ist_index];
1515 if (ist->decoding_needed) {
1516 AVCodec *codec = ist->dec;
1518 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1519 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1520 return AVERROR(EINVAL);
1523 ist->dec_ctx->opaque = ist;
1524 ist->dec_ctx->get_format = get_format;
1525 ist->dec_ctx->get_buffer2 = get_buffer;
1526 ist->dec_ctx->thread_safe_callbacks = 1;
1528 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1530 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1531 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1532 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1534 if (ret == AVERROR_EXPERIMENTAL)
1535 abort_codec_experimental(codec, 0);
1537 av_strerror(ret, errbuf, sizeof(errbuf));
1539 snprintf(error, error_len,
1540 "Error while opening decoder for input stream "
1542 ist->file_index, ist->st->index, errbuf);
1545 assert_avoptions(ist->decoder_opts);
1548 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;
1549 ist->next_dts = AV_NOPTS_VALUE;
1550 init_pts_correction(&ist->pts_ctx);
1555 static InputStream *get_input_stream(OutputStream *ost)
1557 if (ost->source_index >= 0)
1558 return input_streams[ost->source_index];
1561 FilterGraph *fg = ost->filter->graph;
1564 for (i = 0; i < fg->nb_inputs; i++)
1565 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1566 return fg->inputs[i]->ist;
1572 static int init_output_bsfs(OutputStream *ost)
1577 if (!ost->nb_bitstream_filters)
1580 ost->bsf_ctx = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_ctx));
1582 return AVERROR(ENOMEM);
1584 for (i = 0; i < ost->nb_bitstream_filters; i++) {
1585 ret = av_bsf_alloc(ost->bitstream_filters[i], &ctx);
1587 av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
1590 ost->bsf_ctx[i] = ctx;
1592 ret = avcodec_parameters_copy(ctx->par_in,
1593 i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
1597 ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
1599 ret = av_bsf_init(ctx);
1601 av_log(NULL, AV_LOG_ERROR, "Error initializing bistream filter: %s\n",
1602 ost->bitstream_filters[i]->name);
1607 ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
1608 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
1612 ost->st->time_base = ctx->time_base_out;
1617 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1621 if (ost->encoding_needed) {
1622 AVCodec *codec = ost->enc;
1623 AVCodecContext *dec = NULL;
1626 if ((ist = get_input_stream(ost)))
1628 if (dec && dec->subtitle_header) {
1629 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1630 if (!ost->enc_ctx->subtitle_header)
1631 return AVERROR(ENOMEM);
1632 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1633 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1635 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1636 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1638 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx) {
1639 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
1640 if (!ost->enc_ctx->hw_frames_ctx)
1641 return AVERROR(ENOMEM);
1644 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1645 if (ret == AVERROR_EXPERIMENTAL)
1646 abort_codec_experimental(codec, 1);
1647 snprintf(error, error_len,
1648 "Error while opening encoder for output stream #%d:%d - "
1649 "maybe incorrect parameters such as bit_rate, rate, width or height",
1650 ost->file_index, ost->index);
1653 assert_avoptions(ost->encoder_opts);
1654 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1655 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1656 "It takes bits/s as argument, not kbits/s\n");
1658 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
1660 av_log(NULL, AV_LOG_FATAL,
1661 "Error initializing the output stream codec context.\n");
1665 * FIXME: this is only so that the bitstream filters and parsers (that still
1666 * work with a codec context) get the parameter values.
1667 * This should go away with the new BSF/parser API.
1669 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1673 if (ost->enc_ctx->nb_coded_side_data) {
1676 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
1677 sizeof(*ost->st->side_data));
1678 if (!ost->st->side_data)
1679 return AVERROR(ENOMEM);
1681 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
1682 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
1683 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1685 sd_dst->data = av_malloc(sd_src->size);
1687 return AVERROR(ENOMEM);
1688 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1689 sd_dst->size = sd_src->size;
1690 sd_dst->type = sd_src->type;
1691 ost->st->nb_side_data++;
1695 ost->st->time_base = ost->enc_ctx->time_base;
1697 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1702 * FIXME: this is only so that the bitstream filters and parsers (that still
1703 * work with a codec context) get the parameter values.
1704 * This should go away with the new BSF/parser API.
1706 ret = avcodec_parameters_to_context(ost->st->codec, ost->st->codecpar);
1711 /* initialize bitstream filters for the output stream
1712 * needs to be done here, because the codec id for streamcopy is not
1713 * known until now */
1714 ret = init_output_bsfs(ost);
1721 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1722 AVCodecContext *avctx)
1728 for (p = kf; *p; p++)
1731 ost->forced_kf_count = n;
1732 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1733 if (!ost->forced_kf_pts) {
1734 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1739 for (i = 0; i < n; i++) {
1740 char *next = strchr(p, ',');
1745 t = parse_time_or_die("force_key_frames", p, 1);
1746 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1752 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1754 AVDictionaryEntry *e;
1756 uint8_t *encoder_string;
1757 int encoder_string_len;
1758 int format_flags = 0;
1760 e = av_dict_get(of->opts, "fflags", NULL, 0);
1762 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1765 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1768 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1769 encoder_string = av_mallocz(encoder_string_len);
1770 if (!encoder_string)
1773 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1774 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1775 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1776 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1777 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1780 static int transcode_init(void)
1782 int ret = 0, i, j, k;
1783 AVFormatContext *oc;
1789 /* init framerate emulation */
1790 for (i = 0; i < nb_input_files; i++) {
1791 InputFile *ifile = input_files[i];
1792 if (ifile->rate_emu)
1793 for (j = 0; j < ifile->nb_streams; j++)
1794 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1797 /* for each output stream, we compute the right encoding parameters */
1798 for (i = 0; i < nb_output_streams; i++) {
1799 ost = output_streams[i];
1800 oc = output_files[ost->file_index]->ctx;
1801 ist = get_input_stream(ost);
1803 if (ost->attachment_filename)
1807 ost->st->disposition = ist->st->disposition;
1810 if (ost->stream_copy) {
1811 AVCodecParameters *par_dst = ost->st->codecpar;
1812 AVCodecParameters *par_src = ist->st->codecpar;
1814 uint64_t extra_size;
1816 av_assert0(ist && !ost->filter);
1818 extra_size = (uint64_t)par_src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1820 if (extra_size > INT_MAX) {
1821 return AVERROR(EINVAL);
1824 /* if stream_copy is selected, no need to decode or encode */
1825 par_dst->codec_id = par_src->codec_id;
1826 par_dst->codec_type = par_src->codec_type;
1828 if (!par_dst->codec_tag) {
1829 if (!oc->oformat->codec_tag ||
1830 av_codec_get_id (oc->oformat->codec_tag, par_src->codec_tag) == par_dst->codec_id ||
1831 av_codec_get_tag(oc->oformat->codec_tag, par_src->codec_id) <= 0)
1832 par_dst->codec_tag = par_src->codec_tag;
1835 par_dst->bit_rate = par_src->bit_rate;
1836 par_dst->field_order = par_src->field_order;
1837 par_dst->chroma_location = par_src->chroma_location;
1838 par_dst->extradata = av_mallocz(extra_size);
1839 if (!par_dst->extradata) {
1840 return AVERROR(ENOMEM);
1842 memcpy(par_dst->extradata, par_src->extradata, par_src->extradata_size);
1843 par_dst->extradata_size = par_src->extradata_size;
1845 ost->st->time_base = ist->st->time_base;
1847 if (ist->st->nb_side_data) {
1848 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1849 sizeof(*ist->st->side_data));
1850 if (!ost->st->side_data)
1851 return AVERROR(ENOMEM);
1853 for (j = 0; j < ist->st->nb_side_data; j++) {
1854 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1855 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1857 sd_dst->data = av_malloc(sd_src->size);
1859 return AVERROR(ENOMEM);
1860 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1861 sd_dst->size = sd_src->size;
1862 sd_dst->type = sd_src->type;
1863 ost->st->nb_side_data++;
1867 ost->parser = av_parser_init(par_dst->codec_id);
1869 switch (par_dst->codec_type) {
1870 case AVMEDIA_TYPE_AUDIO:
1871 if (audio_volume != 256) {
1872 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1875 par_dst->channel_layout = par_src->channel_layout;
1876 par_dst->sample_rate = par_src->sample_rate;
1877 par_dst->channels = par_src->channels;
1878 par_dst->block_align = par_src->block_align;
1880 case AVMEDIA_TYPE_VIDEO:
1881 par_dst->format = par_src->format;
1882 par_dst->width = par_src->width;
1883 par_dst->height = par_src->height;
1884 if (ost->frame_aspect_ratio)
1885 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1886 else if (ist->st->sample_aspect_ratio.num)
1887 sar = ist->st->sample_aspect_ratio;
1889 sar = par_src->sample_aspect_ratio;
1890 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1892 case AVMEDIA_TYPE_SUBTITLE:
1893 par_dst->width = par_src->width;
1894 par_dst->height = par_src->height;
1896 case AVMEDIA_TYPE_DATA:
1897 case AVMEDIA_TYPE_ATTACHMENT:
1903 AVCodecContext *enc_ctx = ost->enc_ctx;
1904 AVCodecContext *dec_ctx = NULL;
1907 /* should only happen when a default codec is not present. */
1908 snprintf(error, sizeof(error), "Automatic encoder selection "
1909 "failed for output stream #%d:%d. Default encoder for "
1910 "format %s is probably disabled. Please choose an "
1911 "encoder manually.\n", ost->file_index, ost->index,
1913 ret = AVERROR(EINVAL);
1917 set_encoder_id(output_files[ost->file_index], ost);
1920 dec_ctx = ist->dec_ctx;
1922 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1923 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1927 * We want CFR output if and only if one of those is true:
1928 * 1) user specified output framerate with -r
1929 * 2) user specified -vsync cfr
1930 * 3) output format is CFR and the user didn't force vsync to
1931 * something else than CFR
1933 * in such a case, set ost->frame_rate
1935 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1936 !ost->frame_rate.num && ist &&
1937 (video_sync_method == VSYNC_CFR ||
1938 (video_sync_method == VSYNC_AUTO &&
1939 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1940 if (ist->framerate.num)
1941 ost->frame_rate = ist->framerate;
1942 else if (ist->st->avg_frame_rate.num)
1943 ost->frame_rate = ist->st->avg_frame_rate;
1945 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1946 "for the output stream #%d:%d, but no information "
1947 "about the input framerate is available. Falling "
1948 "back to a default value of 25fps. Use the -r option "
1949 "if you want a different framerate.\n",
1950 ost->file_index, ost->index);
1951 ost->frame_rate = (AVRational){ 25, 1 };
1954 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1955 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1956 ost->frame_rate = ost->enc->supported_framerates[idx];
1961 if (qsv_transcode_init(ost))
1966 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1967 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1969 fg = init_simple_filtergraph(ist, ost);
1970 if (configure_filtergraph(fg)) {
1971 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1976 switch (enc_ctx->codec_type) {
1977 case AVMEDIA_TYPE_AUDIO:
1978 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1979 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1980 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1981 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1982 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1984 case AVMEDIA_TYPE_VIDEO:
1985 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1987 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1988 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1989 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1990 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1991 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1992 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1993 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1995 ost->st->avg_frame_rate = ost->frame_rate;
1998 (enc_ctx->width != dec_ctx->width ||
1999 enc_ctx->height != dec_ctx->height ||
2000 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
2001 enc_ctx->bits_per_raw_sample = 0;
2004 if (ost->forced_keyframes)
2005 parse_forced_key_frames(ost->forced_keyframes, ost,
2008 case AVMEDIA_TYPE_SUBTITLE:
2009 enc_ctx->time_base = (AVRational){1, 1000};
2018 /* init input streams */
2019 for (i = 0; i < nb_input_streams; i++)
2020 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2023 /* open each encoder */
2024 for (i = 0; i < nb_output_streams; i++) {
2025 ret = init_output_stream(output_streams[i], error, sizeof(error));
2031 /* discard unused programs */
2032 for (i = 0; i < nb_input_files; i++) {
2033 InputFile *ifile = input_files[i];
2034 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2035 AVProgram *p = ifile->ctx->programs[j];
2036 int discard = AVDISCARD_ALL;
2038 for (k = 0; k < p->nb_stream_indexes; k++)
2039 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2040 discard = AVDISCARD_DEFAULT;
2043 p->discard = discard;
2047 /* open files and write file headers */
2048 for (i = 0; i < nb_output_files; i++) {
2049 oc = output_files[i]->ctx;
2050 oc->interrupt_callback = int_cb;
2051 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2053 av_strerror(ret, errbuf, sizeof(errbuf));
2054 snprintf(error, sizeof(error),
2055 "Could not write header for output file #%d "
2056 "(incorrect codec parameters ?): %s",
2058 ret = AVERROR(EINVAL);
2061 assert_avoptions(output_files[i]->opts);
2062 if (strcmp(oc->oformat->name, "rtp")) {
2068 /* dump the file output parameters - cannot be done before in case
2070 for (i = 0; i < nb_output_files; i++) {
2071 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2074 /* dump the stream mapping */
2075 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2076 for (i = 0; i < nb_input_streams; i++) {
2077 ist = input_streams[i];
2079 for (j = 0; j < ist->nb_filters; j++) {
2080 if (ist->filters[j]->graph->graph_desc) {
2081 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2082 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2083 ist->filters[j]->name);
2084 if (nb_filtergraphs > 1)
2085 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2086 av_log(NULL, AV_LOG_INFO, "\n");
2091 for (i = 0; i < nb_output_streams; i++) {
2092 ost = output_streams[i];
2094 if (ost->attachment_filename) {
2095 /* an attached file */
2096 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2097 ost->attachment_filename, ost->file_index, ost->index);
2101 if (ost->filter && ost->filter->graph->graph_desc) {
2102 /* output from a complex graph */
2103 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2104 if (nb_filtergraphs > 1)
2105 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2107 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2108 ost->index, ost->enc ? ost->enc->name : "?");
2112 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2113 input_streams[ost->source_index]->file_index,
2114 input_streams[ost->source_index]->st->index,
2117 if (ost->sync_ist != input_streams[ost->source_index])
2118 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2119 ost->sync_ist->file_index,
2120 ost->sync_ist->st->index);
2121 if (ost->stream_copy)
2122 av_log(NULL, AV_LOG_INFO, " (copy)");
2124 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2125 const AVCodec *out_codec = ost->enc;
2126 const char *decoder_name = "?";
2127 const char *in_codec_name = "?";
2128 const char *encoder_name = "?";
2129 const char *out_codec_name = "?";
2130 const AVCodecDescriptor *desc;
2133 decoder_name = in_codec->name;
2134 desc = avcodec_descriptor_get(in_codec->id);
2136 in_codec_name = desc->name;
2137 if (!strcmp(decoder_name, in_codec_name))
2138 decoder_name = "native";
2142 encoder_name = out_codec->name;
2143 desc = avcodec_descriptor_get(out_codec->id);
2145 out_codec_name = desc->name;
2146 if (!strcmp(encoder_name, out_codec_name))
2147 encoder_name = "native";
2150 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2151 in_codec_name, decoder_name,
2152 out_codec_name, encoder_name);
2154 av_log(NULL, AV_LOG_INFO, "\n");
2158 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2169 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2170 static int need_output(void)
2174 for (i = 0; i < nb_output_streams; i++) {
2175 OutputStream *ost = output_streams[i];
2176 OutputFile *of = output_files[ost->file_index];
2177 AVFormatContext *os = output_files[ost->file_index]->ctx;
2179 if (ost->finished ||
2180 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2182 if (ost->frame_number >= ost->max_frames) {
2184 for (j = 0; j < of->ctx->nb_streams; j++)
2185 output_streams[of->ost_index + j]->finished = 1;
2195 static InputFile *select_input_file(void)
2197 InputFile *ifile = NULL;
2198 int64_t ipts_min = INT64_MAX;
2201 for (i = 0; i < nb_input_streams; i++) {
2202 InputStream *ist = input_streams[i];
2203 int64_t ipts = ist->last_dts;
2205 if (ist->discard || input_files[ist->file_index]->eagain)
2207 if (!input_files[ist->file_index]->eof_reached) {
2208 if (ipts < ipts_min) {
2210 ifile = input_files[ist->file_index];
2219 static void *input_thread(void *arg)
2224 while (!transcoding_finished && ret >= 0) {
2226 ret = av_read_frame(f->ctx, &pkt);
2228 if (ret == AVERROR(EAGAIN)) {
2235 pthread_mutex_lock(&f->fifo_lock);
2236 while (!av_fifo_space(f->fifo))
2237 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2239 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2241 pthread_mutex_unlock(&f->fifo_lock);
2248 static void free_input_threads(void)
2252 if (nb_input_files == 1)
2255 transcoding_finished = 1;
2257 for (i = 0; i < nb_input_files; i++) {
2258 InputFile *f = input_files[i];
2261 if (!f->fifo || f->joined)
2264 pthread_mutex_lock(&f->fifo_lock);
2265 while (av_fifo_size(f->fifo)) {
2266 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2267 av_packet_unref(&pkt);
2269 pthread_cond_signal(&f->fifo_cond);
2270 pthread_mutex_unlock(&f->fifo_lock);
2272 pthread_join(f->thread, NULL);
2275 while (av_fifo_size(f->fifo)) {
2276 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2277 av_packet_unref(&pkt);
2279 av_fifo_free(f->fifo);
2283 static int init_input_threads(void)
2287 if (nb_input_files == 1)
2290 for (i = 0; i < nb_input_files; i++) {
2291 InputFile *f = input_files[i];
2293 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2294 return AVERROR(ENOMEM);
2296 pthread_mutex_init(&f->fifo_lock, NULL);
2297 pthread_cond_init (&f->fifo_cond, NULL);
2299 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2300 return AVERROR(ret);
2305 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2309 pthread_mutex_lock(&f->fifo_lock);
2311 if (av_fifo_size(f->fifo)) {
2312 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2313 pthread_cond_signal(&f->fifo_cond);
2318 ret = AVERROR(EAGAIN);
2321 pthread_mutex_unlock(&f->fifo_lock);
2327 static int get_input_packet(InputFile *f, AVPacket *pkt)
2331 for (i = 0; i < f->nb_streams; i++) {
2332 InputStream *ist = input_streams[f->ist_index + i];
2333 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2334 int64_t now = av_gettime_relative() - ist->start;
2336 return AVERROR(EAGAIN);
2341 if (nb_input_files > 1)
2342 return get_input_packet_mt(f, pkt);
2344 return av_read_frame(f->ctx, pkt);
2347 static int got_eagain(void)
2350 for (i = 0; i < nb_input_files; i++)
2351 if (input_files[i]->eagain)
2356 static void reset_eagain(void)
2359 for (i = 0; i < nb_input_files; i++)
2360 input_files[i]->eagain = 0;
2363 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2364 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2365 AVRational time_base)
2371 return tmp_time_base;
2374 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2377 return tmp_time_base;
2383 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2386 AVCodecContext *avctx;
2387 int i, ret, has_audio = 0;
2388 int64_t duration = 0;
2390 ret = av_seek_frame(is, -1, is->start_time, 0);
2394 for (i = 0; i < ifile->nb_streams; i++) {
2395 ist = input_streams[ifile->ist_index + i];
2396 avctx = ist->dec_ctx;
2399 if (ist->decoding_needed) {
2400 process_input_packet(ist, NULL, 1);
2401 avcodec_flush_buffers(avctx);
2404 /* duration is the length of the last frame in a stream
2405 * when audio stream is present we don't care about
2406 * last video frame length because it's not defined exactly */
2407 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2411 for (i = 0; i < ifile->nb_streams; i++) {
2412 ist = input_streams[ifile->ist_index + i];
2413 avctx = ist->dec_ctx;
2416 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2417 AVRational sample_rate = {1, avctx->sample_rate};
2419 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2423 if (ist->framerate.num) {
2424 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2425 } else if (ist->st->avg_frame_rate.num) {
2426 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2427 } else duration = 1;
2429 if (!ifile->duration)
2430 ifile->time_base = ist->st->time_base;
2431 /* the total duration of the stream, max_pts - min_pts is
2432 * the duration of the stream without the last frame */
2433 duration += ist->max_pts - ist->min_pts;
2434 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2438 if (ifile->loop > 0)
2445 * Read one packet from an input file and send it for
2446 * - decoding -> lavfi (audio/video)
2447 * - decoding -> encoding -> muxing (subtitles)
2448 * - muxing (streamcopy)
2451 * - 0 -- one packet was read and processed
2452 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2453 * this function should be called again
2454 * - AVERROR_EOF -- this function should not be called again
2456 static int process_input(void)
2459 AVFormatContext *is;
2465 /* select the stream that we must read now */
2466 ifile = select_input_file();
2467 /* if none, if is finished */
2472 return AVERROR(EAGAIN);
2474 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2479 ret = get_input_packet(ifile, &pkt);
2481 if (ret == AVERROR(EAGAIN)) {
2485 if (ret < 0 && ifile->loop) {
2486 if ((ret = seek_to_start(ifile, is)) < 0)
2488 ret = get_input_packet(ifile, &pkt);
2491 if (ret != AVERROR_EOF) {
2492 print_error(is->filename, ret);
2496 ifile->eof_reached = 1;
2498 for (i = 0; i < ifile->nb_streams; i++) {
2499 ist = input_streams[ifile->ist_index + i];
2500 if (ist->decoding_needed)
2501 process_input_packet(ist, NULL, 0);
2503 /* mark all outputs that don't go through lavfi as finished */
2504 for (j = 0; j < nb_output_streams; j++) {
2505 OutputStream *ost = output_streams[j];
2507 if (ost->source_index == ifile->ist_index + i &&
2508 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2509 finish_output_stream(ost);
2513 return AVERROR(EAGAIN);
2519 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2520 is->streams[pkt.stream_index]);
2522 /* the following test is needed in case new streams appear
2523 dynamically in stream : we ignore them */
2524 if (pkt.stream_index >= ifile->nb_streams)
2525 goto discard_packet;
2527 ist = input_streams[ifile->ist_index + pkt.stream_index];
2529 ist->data_size += pkt.size;
2533 goto discard_packet;
2535 /* add the stream-global side data to the first packet */
2536 if (ist->nb_packets == 1)
2537 for (i = 0; i < ist->st->nb_side_data; i++) {
2538 AVPacketSideData *src_sd = &ist->st->side_data[i];
2541 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2543 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2546 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2550 memcpy(dst_data, src_sd->data, src_sd->size);
2553 if (pkt.dts != AV_NOPTS_VALUE)
2554 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2555 if (pkt.pts != AV_NOPTS_VALUE)
2556 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2558 if (pkt.pts != AV_NOPTS_VALUE)
2559 pkt.pts *= ist->ts_scale;
2560 if (pkt.dts != AV_NOPTS_VALUE)
2561 pkt.dts *= ist->ts_scale;
2563 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2564 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2565 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2566 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2567 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2568 int64_t delta = pkt_dts - ist->next_dts;
2570 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2571 ifile->ts_offset -= delta;
2572 av_log(NULL, AV_LOG_DEBUG,
2573 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2574 delta, ifile->ts_offset);
2575 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2576 if (pkt.pts != AV_NOPTS_VALUE)
2577 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2580 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2581 if (pkt.pts != AV_NOPTS_VALUE) {
2582 pkt.pts += duration;
2583 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2584 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2587 if (pkt.dts != AV_NOPTS_VALUE)
2588 pkt.dts += duration;
2590 process_input_packet(ist, &pkt, 0);
2593 av_packet_unref(&pkt);
2599 * The following code is the main loop of the file converter
2601 static int transcode(void)
2603 int ret, i, need_input = 1;
2604 AVFormatContext *os;
2607 int64_t timer_start;
2609 ret = transcode_init();
2613 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2616 timer_start = av_gettime_relative();
2619 if ((ret = init_input_threads()) < 0)
2623 while (!received_sigterm) {
2624 /* check if there's any stream where output is still needed */
2625 if (!need_output()) {
2626 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2630 /* read and process one input packet if needed */
2632 ret = process_input();
2633 if (ret == AVERROR_EOF)
2637 ret = poll_filters();
2638 if (ret < 0 && ret != AVERROR_EOF) {
2640 av_strerror(ret, errbuf, sizeof(errbuf));
2642 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2646 /* dump report by using the output first video and audio streams */
2647 print_report(0, timer_start);
2650 free_input_threads();
2653 /* at the end of stream, we must flush the decoder buffers */
2654 for (i = 0; i < nb_input_streams; i++) {
2655 ist = input_streams[i];
2656 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2657 process_input_packet(ist, NULL, 0);
2665 /* write the trailer if needed and close file */
2666 for (i = 0; i < nb_output_files; i++) {
2667 os = output_files[i]->ctx;
2668 av_write_trailer(os);
2671 /* dump report by using the first video and audio streams */
2672 print_report(1, timer_start);
2674 /* close each encoder */
2675 for (i = 0; i < nb_output_streams; i++) {
2676 ost = output_streams[i];
2677 if (ost->encoding_needed) {
2678 av_freep(&ost->enc_ctx->stats_in);
2682 /* close each decoder */
2683 for (i = 0; i < nb_input_streams; i++) {
2684 ist = input_streams[i];
2685 if (ist->decoding_needed) {
2686 avcodec_close(ist->dec_ctx);
2687 if (ist->hwaccel_uninit)
2688 ist->hwaccel_uninit(ist->dec_ctx);
2697 free_input_threads();
2700 if (output_streams) {
2701 for (i = 0; i < nb_output_streams; i++) {
2702 ost = output_streams[i];
2705 fclose(ost->logfile);
2706 ost->logfile = NULL;
2708 av_free(ost->forced_kf_pts);
2709 av_dict_free(&ost->encoder_opts);
2710 av_dict_free(&ost->resample_opts);
2717 static int64_t getutime(void)
2720 struct rusage rusage;
2722 getrusage(RUSAGE_SELF, &rusage);
2723 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2724 #elif HAVE_GETPROCESSTIMES
2726 FILETIME c, e, k, u;
2727 proc = GetCurrentProcess();
2728 GetProcessTimes(proc, &c, &e, &k, &u);
2729 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2731 return av_gettime_relative();
2735 static int64_t getmaxrss(void)
2737 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2738 struct rusage rusage;
2739 getrusage(RUSAGE_SELF, &rusage);
2740 return (int64_t)rusage.ru_maxrss * 1024;
2741 #elif HAVE_GETPROCESSMEMORYINFO
2743 PROCESS_MEMORY_COUNTERS memcounters;
2744 proc = GetCurrentProcess();
2745 memcounters.cb = sizeof(memcounters);
2746 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2747 return memcounters.PeakPagefileUsage;
2753 int main(int argc, char **argv)
2758 register_exit(avconv_cleanup);
2760 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2761 parse_loglevel(argc, argv, options);
2763 avcodec_register_all();
2765 avdevice_register_all();
2767 avfilter_register_all();
2769 avformat_network_init();
2773 /* parse options and open all input/output files */
2774 ret = avconv_parse_options(argc, argv);
2778 if (nb_output_files <= 0 && nb_input_files == 0) {
2780 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2784 /* file converter / grab */
2785 if (nb_output_files <= 0) {
2786 fprintf(stderr, "At least one output file must be specified\n");
2791 if (transcode() < 0)
2793 ti = getutime() - ti;
2795 int maxrss = getmaxrss() / 1024;
2796 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);