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 ret = avcodec_send_frame(enc, frame);
396 ret = avcodec_receive_packet(enc, &pkt);
397 if (ret == AVERROR(EAGAIN))
402 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
403 output_packet(s, &pkt, ost);
408 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
412 static void do_subtitle_out(AVFormatContext *s,
418 static uint8_t *subtitle_out = NULL;
419 int subtitle_out_max_size = 1024 * 1024;
420 int subtitle_out_size, nb, i;
424 if (pts == AV_NOPTS_VALUE) {
425 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
434 subtitle_out = av_malloc(subtitle_out_max_size);
437 /* Note: DVB subtitle need one packet to draw them and one other
438 packet to clear them */
439 /* XXX: signal it in the codec context ? */
440 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
445 for (i = 0; i < nb; i++) {
446 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
447 if (!check_recording_time(ost))
450 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
451 // start_display_time is required to be 0
452 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
453 sub->end_display_time -= sub->start_display_time;
454 sub->start_display_time = 0;
456 ost->frames_encoded++;
458 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
459 subtitle_out_max_size, sub);
460 if (subtitle_out_size < 0) {
461 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
465 av_init_packet(&pkt);
466 pkt.data = subtitle_out;
467 pkt.size = subtitle_out_size;
468 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
469 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
470 /* XXX: the pts correction is handled here. Maybe handling
471 it in the codec would be better */
473 pkt.pts += 90 * sub->start_display_time;
475 pkt.pts += 90 * sub->end_display_time;
477 output_packet(s, &pkt, ost);
481 static void do_video_out(AVFormatContext *s,
486 int ret, format_video_sync;
488 AVCodecContext *enc = ost->enc_ctx;
492 format_video_sync = video_sync_method;
493 if (format_video_sync == VSYNC_AUTO)
494 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
495 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
496 if (format_video_sync != VSYNC_PASSTHROUGH &&
498 in_picture->pts != AV_NOPTS_VALUE &&
499 in_picture->pts < ost->sync_opts) {
501 av_log(NULL, AV_LOG_WARNING,
502 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
503 ost->frame_number, ost->st->index, in_picture->pts);
507 if (in_picture->pts == AV_NOPTS_VALUE)
508 in_picture->pts = ost->sync_opts;
509 ost->sync_opts = in_picture->pts;
512 if (!ost->frame_number)
513 ost->first_pts = in_picture->pts;
515 av_init_packet(&pkt);
519 if (ost->frame_number >= ost->max_frames)
522 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
523 ost->top_field_first >= 0)
524 in_picture->top_field_first = !!ost->top_field_first;
526 in_picture->quality = enc->global_quality;
527 in_picture->pict_type = 0;
528 if (ost->forced_kf_index < ost->forced_kf_count &&
529 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
530 in_picture->pict_type = AV_PICTURE_TYPE_I;
531 ost->forced_kf_index++;
534 ost->frames_encoded++;
536 ret = avcodec_send_frame(enc, in_picture);
541 * For video, there may be reordering, so we can't throw away frames on
542 * encoder flush, we need to limit them here, before they go into encoder.
547 ret = avcodec_receive_packet(enc, &pkt);
548 if (ret == AVERROR(EAGAIN))
553 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
554 output_packet(s, &pkt, ost);
555 *frame_size = pkt.size;
557 /* if two pass, output log */
558 if (ost->logfile && enc->stats_out) {
559 fprintf(ost->logfile, "%s", enc->stats_out);
567 av_assert0(ret != AVERROR(EAGAIN) && ret != AVERROR_EOF);
568 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
572 static double psnr(double d)
574 return -10.0 * log(d) / log(10.0);
577 static void do_video_stats(OutputStream *ost, int frame_size)
581 double ti1, bitrate, avg_bitrate;
583 /* this is executed just the first time do_video_stats is called */
585 vstats_file = fopen(vstats_filename, "w");
593 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
594 frame_number = ost->frame_number;
595 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
596 ost->quality / (float)FF_QP2LAMBDA);
598 #if FF_API_CODED_FRAME
599 FF_DISABLE_DEPRECATION_WARNINGS
600 if (enc->flags & AV_CODEC_FLAG_PSNR)
601 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
602 FF_ENABLE_DEPRECATION_WARNINGS
605 fprintf(vstats_file,"f_size= %6d ", frame_size);
606 /* compute pts value */
607 ti1 = ost->sync_opts * av_q2d(enc->time_base);
611 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
612 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
613 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
614 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
615 #if FF_API_CODED_FRAME
616 FF_DISABLE_DEPRECATION_WARNINGS
617 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
618 FF_ENABLE_DEPRECATION_WARNINGS
624 * Read one frame for lavfi output for ost and encode it.
626 static int poll_filter(OutputStream *ost)
628 OutputFile *of = output_files[ost->file_index];
629 AVFrame *filtered_frame = NULL;
632 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
633 return AVERROR(ENOMEM);
635 filtered_frame = ost->filtered_frame;
637 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
638 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
639 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
640 ost->enc_ctx->frame_size);
642 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
647 if (filtered_frame->pts != AV_NOPTS_VALUE) {
648 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
649 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
650 ost->filter->filter->inputs[0]->time_base,
651 ost->enc_ctx->time_base) -
652 av_rescale_q(start_time,
654 ost->enc_ctx->time_base);
657 switch (ost->filter->filter->inputs[0]->type) {
658 case AVMEDIA_TYPE_VIDEO:
659 if (!ost->frame_aspect_ratio)
660 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
662 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
663 if (vstats_filename && frame_size)
664 do_video_stats(ost, frame_size);
666 case AVMEDIA_TYPE_AUDIO:
667 do_audio_out(of->ctx, ost, filtered_frame);
670 // TODO support subtitle filters
674 av_frame_unref(filtered_frame);
679 static void finish_output_stream(OutputStream *ost)
681 OutputFile *of = output_files[ost->file_index];
687 for (i = 0; i < of->ctx->nb_streams; i++)
688 output_streams[of->ost_index + i]->finished = 1;
693 * Read as many frames from possible from lavfi and encode them.
695 * Always read from the active stream with the lowest timestamp. If no frames
696 * are available for it then return EAGAIN and wait for more input. This way we
697 * can use lavfi sources that generate unlimited amount of frames without memory
700 static int poll_filters(void)
704 while (ret >= 0 && !received_sigterm) {
705 OutputStream *ost = NULL;
706 int64_t min_pts = INT64_MAX;
708 /* choose output stream with the lowest timestamp */
709 for (i = 0; i < nb_output_streams; i++) {
710 int64_t pts = output_streams[i]->sync_opts;
712 if (!output_streams[i]->filter || output_streams[i]->finished)
715 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
719 ost = output_streams[i];
726 ret = poll_filter(ost);
728 if (ret == AVERROR_EOF) {
729 finish_output_stream(ost);
731 } else if (ret == AVERROR(EAGAIN))
738 static void print_final_stats(int64_t total_size)
740 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
741 uint64_t data_size = 0;
742 float percent = -1.0;
745 for (i = 0; i < nb_output_streams; i++) {
746 OutputStream *ost = output_streams[i];
747 switch (ost->enc_ctx->codec_type) {
748 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
749 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
750 default: other_size += ost->data_size; break;
752 extra_size += ost->enc_ctx->extradata_size;
753 data_size += ost->data_size;
756 if (data_size && total_size >= data_size)
757 percent = 100.0 * (total_size - data_size) / data_size;
759 av_log(NULL, AV_LOG_INFO, "\n");
760 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
764 extra_size / 1024.0);
766 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
768 av_log(NULL, AV_LOG_INFO, "unknown");
769 av_log(NULL, AV_LOG_INFO, "\n");
771 /* print verbose per-stream stats */
772 for (i = 0; i < nb_input_files; i++) {
773 InputFile *f = input_files[i];
774 uint64_t total_packets = 0, total_size = 0;
776 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
777 i, f->ctx->filename);
779 for (j = 0; j < f->nb_streams; j++) {
780 InputStream *ist = input_streams[f->ist_index + j];
781 enum AVMediaType type = ist->dec_ctx->codec_type;
783 total_size += ist->data_size;
784 total_packets += ist->nb_packets;
786 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
787 i, j, media_type_string(type));
788 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
789 ist->nb_packets, ist->data_size);
791 if (ist->decoding_needed) {
792 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
793 ist->frames_decoded);
794 if (type == AVMEDIA_TYPE_AUDIO)
795 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
796 av_log(NULL, AV_LOG_VERBOSE, "; ");
799 av_log(NULL, AV_LOG_VERBOSE, "\n");
802 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
803 total_packets, total_size);
806 for (i = 0; i < nb_output_files; i++) {
807 OutputFile *of = output_files[i];
808 uint64_t total_packets = 0, total_size = 0;
810 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
811 i, of->ctx->filename);
813 for (j = 0; j < of->ctx->nb_streams; j++) {
814 OutputStream *ost = output_streams[of->ost_index + j];
815 enum AVMediaType type = ost->enc_ctx->codec_type;
817 total_size += ost->data_size;
818 total_packets += ost->packets_written;
820 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
821 i, j, media_type_string(type));
822 if (ost->encoding_needed) {
823 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
824 ost->frames_encoded);
825 if (type == AVMEDIA_TYPE_AUDIO)
826 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
827 av_log(NULL, AV_LOG_VERBOSE, "; ");
830 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
831 ost->packets_written, ost->data_size);
833 av_log(NULL, AV_LOG_VERBOSE, "\n");
836 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
837 total_packets, total_size);
841 static void print_report(int is_last_report, int64_t timer_start)
848 int frame_number, vid, i;
849 double bitrate, ti1, pts;
850 static int64_t last_time = -1;
851 static int qp_histogram[52];
853 if (!print_stats && !is_last_report)
856 if (!is_last_report) {
858 /* display the report every 0.5 seconds */
859 cur_time = av_gettime_relative();
860 if (last_time == -1) {
861 last_time = cur_time;
864 if ((cur_time - last_time) < 500000)
866 last_time = cur_time;
870 oc = output_files[0]->ctx;
872 total_size = avio_size(oc->pb);
873 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
874 total_size = avio_tell(oc->pb);
875 if (total_size < 0) {
877 av_strerror(total_size, errbuf, sizeof(errbuf));
878 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
879 "avio_tell() failed: %s\n", errbuf);
886 for (i = 0; i < nb_output_streams; i++) {
888 ost = output_streams[i];
890 if (!ost->stream_copy)
891 q = ost->quality / (float) FF_QP2LAMBDA;
893 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
894 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
896 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
897 float t = (av_gettime_relative() - timer_start) / 1000000.0;
899 frame_number = ost->frame_number;
900 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
901 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
903 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
907 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
909 for (j = 0; j < 32; j++)
910 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
913 #if FF_API_CODED_FRAME
914 FF_DISABLE_DEPRECATION_WARNINGS
915 if (enc->flags & AV_CODEC_FLAG_PSNR) {
917 double error, error_sum = 0;
918 double scale, scale_sum = 0;
919 char type[3] = { 'Y','U','V' };
920 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
921 for (j = 0; j < 3; j++) {
922 if (is_last_report) {
923 error = enc->error[j];
924 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
926 error = enc->coded_frame->error[j];
927 scale = enc->width * enc->height * 255.0 * 255.0;
933 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
937 FF_ENABLE_DEPRECATION_WARNINGS
941 /* compute min output value */
942 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
943 if ((pts < ti1) && (pts > 0))
949 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
951 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
952 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
953 (double)total_size / 1024, ti1, bitrate);
956 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
959 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
964 print_final_stats(total_size);
968 static void flush_encoders(void)
972 for (i = 0; i < nb_output_streams; i++) {
973 OutputStream *ost = output_streams[i];
974 AVCodecContext *enc = ost->enc_ctx;
975 AVFormatContext *os = output_files[ost->file_index]->ctx;
976 int stop_encoding = 0;
978 if (!ost->encoding_needed)
981 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
984 if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
987 avcodec_send_frame(enc, NULL);
990 const char *desc = NULL;
992 switch (enc->codec_type) {
993 case AVMEDIA_TYPE_AUDIO:
996 case AVMEDIA_TYPE_VIDEO:
1005 av_init_packet(&pkt);
1009 ret = avcodec_receive_packet(enc, &pkt);
1010 if (ret < 0 && ret != AVERROR_EOF) {
1011 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1014 if (ost->logfile && enc->stats_out) {
1015 fprintf(ost->logfile, "%s", enc->stats_out);
1017 if (ret == AVERROR_EOF) {
1021 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1022 output_packet(os, &pkt, ost);
1032 * Check whether a packet from ist should be written into ost at this time
1034 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1036 OutputFile *of = output_files[ost->file_index];
1037 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1039 if (ost->source_index != ist_index)
1042 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1048 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1050 OutputFile *of = output_files[ost->file_index];
1051 InputFile *f = input_files [ist->file_index];
1052 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1053 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1056 av_init_packet(&opkt);
1058 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1059 !ost->copy_initial_nonkeyframes)
1062 if (of->recording_time != INT64_MAX &&
1063 ist->last_dts >= of->recording_time + start_time) {
1068 if (f->recording_time != INT64_MAX) {
1069 start_time = f->ctx->start_time;
1070 if (f->start_time != AV_NOPTS_VALUE)
1071 start_time += f->start_time;
1072 if (ist->last_dts >= f->recording_time + start_time) {
1078 /* force the input stream PTS */
1079 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1082 if (pkt->pts != AV_NOPTS_VALUE)
1083 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1085 opkt.pts = AV_NOPTS_VALUE;
1087 if (pkt->dts == AV_NOPTS_VALUE)
1088 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1090 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1091 opkt.dts -= ost_tb_start_time;
1093 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1094 opkt.flags = pkt->flags;
1096 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1097 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1098 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1099 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1100 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1102 if (av_parser_change(ost->parser, ost->st->codec,
1103 &opkt.data, &opkt.size,
1104 pkt->data, pkt->size,
1105 pkt->flags & AV_PKT_FLAG_KEY)) {
1106 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1111 opkt.data = pkt->data;
1112 opkt.size = pkt->size;
1115 output_packet(of->ctx, &opkt, ost);
1118 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
1119 // There is the following difference: if you got a frame, you must call
1120 // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
1121 // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
1122 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
1129 ret = avcodec_send_packet(avctx, pkt);
1130 // In particular, we don't expect AVERROR(EAGAIN), because we read all
1131 // decoded frames with avcodec_receive_frame() until done.
1133 return ret == AVERROR_EOF ? 0 : ret;
1136 ret = avcodec_receive_frame(avctx, frame);
1137 if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
1145 int guess_input_channel_layout(InputStream *ist)
1147 AVCodecContext *dec = ist->dec_ctx;
1149 if (!dec->channel_layout) {
1150 char layout_name[256];
1152 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1153 if (!dec->channel_layout)
1155 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1156 dec->channels, dec->channel_layout);
1157 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1158 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1163 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1165 AVFrame *decoded_frame, *f;
1166 AVCodecContext *avctx = ist->dec_ctx;
1167 int i, ret, err = 0, resample_changed;
1169 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1170 return AVERROR(ENOMEM);
1171 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1172 return AVERROR(ENOMEM);
1173 decoded_frame = ist->decoded_frame;
1175 ret = decode(avctx, decoded_frame, got_output, pkt);
1176 if (!*got_output || ret < 0)
1179 ist->samples_decoded += decoded_frame->nb_samples;
1180 ist->frames_decoded++;
1182 /* if the decoder provides a pts, use it instead of the last packet pts.
1183 the decoder could be delaying output by a packet or more. */
1184 if (decoded_frame->pts != AV_NOPTS_VALUE)
1185 ist->next_dts = decoded_frame->pts;
1186 else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
1187 decoded_frame->pts = pkt->pts;
1190 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1191 ist->resample_channels != avctx->channels ||
1192 ist->resample_channel_layout != decoded_frame->channel_layout ||
1193 ist->resample_sample_rate != decoded_frame->sample_rate;
1194 if (resample_changed) {
1195 char layout1[64], layout2[64];
1197 if (!guess_input_channel_layout(ist)) {
1198 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1199 "layout for Input Stream #%d.%d\n", ist->file_index,
1203 decoded_frame->channel_layout = avctx->channel_layout;
1205 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1206 ist->resample_channel_layout);
1207 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1208 decoded_frame->channel_layout);
1210 av_log(NULL, AV_LOG_INFO,
1211 "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",
1212 ist->file_index, ist->st->index,
1213 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1214 ist->resample_channels, layout1,
1215 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1216 avctx->channels, layout2);
1218 ist->resample_sample_fmt = decoded_frame->format;
1219 ist->resample_sample_rate = decoded_frame->sample_rate;
1220 ist->resample_channel_layout = decoded_frame->channel_layout;
1221 ist->resample_channels = avctx->channels;
1223 for (i = 0; i < nb_filtergraphs; i++)
1224 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1225 configure_filtergraph(filtergraphs[i]) < 0) {
1226 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1231 if (decoded_frame->pts != AV_NOPTS_VALUE)
1232 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1234 (AVRational){1, avctx->sample_rate});
1235 ist->nb_samples = decoded_frame->nb_samples;
1236 for (i = 0; i < ist->nb_filters; i++) {
1237 if (i < ist->nb_filters - 1) {
1238 f = ist->filter_frame;
1239 err = av_frame_ref(f, decoded_frame);
1245 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1250 av_frame_unref(ist->filter_frame);
1251 av_frame_unref(decoded_frame);
1252 return err < 0 ? err : ret;
1255 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1257 AVFrame *decoded_frame, *f;
1258 int i, ret = 0, err = 0, resample_changed;
1260 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1261 return AVERROR(ENOMEM);
1262 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1263 return AVERROR(ENOMEM);
1264 decoded_frame = ist->decoded_frame;
1266 ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt);
1267 if (!*got_output || ret < 0)
1270 ist->frames_decoded++;
1272 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1273 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1277 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1279 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1280 decoded_frame->pkt_dts);
1282 if (ist->st->sample_aspect_ratio.num)
1283 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1285 resample_changed = ist->resample_width != decoded_frame->width ||
1286 ist->resample_height != decoded_frame->height ||
1287 ist->resample_pix_fmt != decoded_frame->format;
1288 if (resample_changed) {
1289 av_log(NULL, AV_LOG_INFO,
1290 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1291 ist->file_index, ist->st->index,
1292 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1293 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1295 ret = poll_filters();
1296 if (ret < 0 && ret != AVERROR_EOF) {
1298 av_strerror(ret, errbuf, sizeof(errbuf));
1300 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1303 ist->resample_width = decoded_frame->width;
1304 ist->resample_height = decoded_frame->height;
1305 ist->resample_pix_fmt = decoded_frame->format;
1307 for (i = 0; i < nb_filtergraphs; i++)
1308 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1309 configure_filtergraph(filtergraphs[i]) < 0) {
1310 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1315 for (i = 0; i < ist->nb_filters; i++) {
1316 if (i < ist->nb_filters - 1) {
1317 f = ist->filter_frame;
1318 err = av_frame_ref(f, decoded_frame);
1324 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1330 av_frame_unref(ist->filter_frame);
1331 av_frame_unref(decoded_frame);
1332 return err < 0 ? err : ret;
1335 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1337 AVSubtitle subtitle;
1338 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1339 &subtitle, got_output, pkt);
1345 ist->frames_decoded++;
1347 for (i = 0; i < nb_output_streams; i++) {
1348 OutputStream *ost = output_streams[i];
1350 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1353 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1356 avsubtitle_free(&subtitle);
1360 static int send_filter_eof(InputStream *ist)
1363 for (i = 0; i < ist->nb_filters; i++) {
1364 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1371 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1372 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1378 if (ist->next_dts == AV_NOPTS_VALUE)
1379 ist->next_dts = ist->last_dts;
1383 av_init_packet(&avpkt);
1390 if (pkt && pkt->dts != AV_NOPTS_VALUE)
1391 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1393 // while we have more to decode or while the decoder did output something on EOF
1394 while (ist->decoding_needed && (!pkt || avpkt.size > 0)) {
1399 ist->last_dts = ist->next_dts;
1401 switch (ist->dec_ctx->codec_type) {
1402 case AVMEDIA_TYPE_AUDIO:
1403 ret = decode_audio (ist, repeating ? NULL : &avpkt, &got_output);
1405 case AVMEDIA_TYPE_VIDEO:
1406 ret = decode_video (ist, repeating ? NULL : &avpkt, &got_output);
1407 if (repeating && !got_output)
1409 else if (pkt && pkt->duration)
1410 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1411 else if (ist->st->avg_frame_rate.num)
1412 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1414 else if (ist->dec_ctx->framerate.num != 0) {
1415 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1416 ist->dec_ctx->ticks_per_frame;
1417 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1420 case AVMEDIA_TYPE_SUBTITLE:
1423 ret = transcode_subtitles(ist, &avpkt, &got_output);
1430 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1431 ist->file_index, ist->st->index);
1443 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1444 /* except when looping we need to flush but not to send an EOF */
1445 if (!pkt && ist->decoding_needed && !no_eof) {
1446 int ret = send_filter_eof(ist);
1448 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1453 /* handle stream copy */
1454 if (!ist->decoding_needed) {
1455 ist->last_dts = ist->next_dts;
1456 switch (ist->dec_ctx->codec_type) {
1457 case AVMEDIA_TYPE_AUDIO:
1458 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1459 ist->dec_ctx->sample_rate;
1461 case AVMEDIA_TYPE_VIDEO:
1462 if (ist->dec_ctx->framerate.num != 0) {
1463 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1464 ist->next_dts += ((int64_t)AV_TIME_BASE *
1465 ist->dec_ctx->framerate.den * ticks) /
1466 ist->dec_ctx->framerate.num;
1471 for (i = 0; pkt && i < nb_output_streams; i++) {
1472 OutputStream *ost = output_streams[i];
1474 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1477 do_streamcopy(ist, ost, pkt);
1483 static void print_sdp(void)
1487 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1491 for (i = 0; i < nb_output_files; i++)
1492 avc[i] = output_files[i]->ctx;
1494 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1495 printf("SDP:\n%s\n", sdp);
1500 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1503 for (i = 0; hwaccels[i].name; i++)
1504 if (hwaccels[i].pix_fmt == pix_fmt)
1505 return &hwaccels[i];
1509 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1511 InputStream *ist = s->opaque;
1512 const enum AVPixelFormat *p;
1515 for (p = pix_fmts; *p != -1; p++) {
1516 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1517 const HWAccel *hwaccel;
1519 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1522 hwaccel = get_hwaccel(*p);
1524 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1525 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1528 ret = hwaccel->init(s);
1530 if (ist->hwaccel_id == hwaccel->id) {
1531 av_log(NULL, AV_LOG_FATAL,
1532 "%s hwaccel requested for input stream #%d:%d, "
1533 "but cannot be initialized.\n", hwaccel->name,
1534 ist->file_index, ist->st->index);
1535 return AV_PIX_FMT_NONE;
1539 ist->active_hwaccel_id = hwaccel->id;
1540 ist->hwaccel_pix_fmt = *p;
1547 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1549 InputStream *ist = s->opaque;
1551 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1552 return ist->hwaccel_get_buffer(s, frame, flags);
1554 return avcodec_default_get_buffer2(s, frame, flags);
1557 static int init_input_stream(int ist_index, char *error, int error_len)
1560 InputStream *ist = input_streams[ist_index];
1561 if (ist->decoding_needed) {
1562 AVCodec *codec = ist->dec;
1564 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1565 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1566 return AVERROR(EINVAL);
1569 ist->dec_ctx->opaque = ist;
1570 ist->dec_ctx->get_format = get_format;
1571 ist->dec_ctx->get_buffer2 = get_buffer;
1572 ist->dec_ctx->thread_safe_callbacks = 1;
1574 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1576 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1577 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1578 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1580 if (ret == AVERROR_EXPERIMENTAL)
1581 abort_codec_experimental(codec, 0);
1583 av_strerror(ret, errbuf, sizeof(errbuf));
1585 snprintf(error, error_len,
1586 "Error while opening decoder for input stream "
1588 ist->file_index, ist->st->index, errbuf);
1591 assert_avoptions(ist->decoder_opts);
1594 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;
1595 ist->next_dts = AV_NOPTS_VALUE;
1596 init_pts_correction(&ist->pts_ctx);
1601 static InputStream *get_input_stream(OutputStream *ost)
1603 if (ost->source_index >= 0)
1604 return input_streams[ost->source_index];
1607 FilterGraph *fg = ost->filter->graph;
1610 for (i = 0; i < fg->nb_inputs; i++)
1611 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1612 return fg->inputs[i]->ist;
1618 static int init_output_bsfs(OutputStream *ost)
1623 if (!ost->nb_bitstream_filters)
1626 ost->bsf_ctx = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_ctx));
1628 return AVERROR(ENOMEM);
1630 for (i = 0; i < ost->nb_bitstream_filters; i++) {
1631 ret = av_bsf_alloc(ost->bitstream_filters[i], &ctx);
1633 av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
1636 ost->bsf_ctx[i] = ctx;
1638 ret = avcodec_parameters_copy(ctx->par_in,
1639 i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
1643 ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
1645 ret = av_bsf_init(ctx);
1647 av_log(NULL, AV_LOG_ERROR, "Error initializing bistream filter: %s\n",
1648 ost->bitstream_filters[i]->name);
1653 ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
1654 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
1658 ost->st->time_base = ctx->time_base_out;
1663 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1667 if (ost->encoding_needed) {
1668 AVCodec *codec = ost->enc;
1669 AVCodecContext *dec = NULL;
1672 if ((ist = get_input_stream(ost)))
1674 if (dec && dec->subtitle_header) {
1675 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1676 if (!ost->enc_ctx->subtitle_header)
1677 return AVERROR(ENOMEM);
1678 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1679 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1681 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1682 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1684 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx) {
1685 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
1686 if (!ost->enc_ctx->hw_frames_ctx)
1687 return AVERROR(ENOMEM);
1690 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1691 if (ret == AVERROR_EXPERIMENTAL)
1692 abort_codec_experimental(codec, 1);
1693 snprintf(error, error_len,
1694 "Error while opening encoder for output stream #%d:%d - "
1695 "maybe incorrect parameters such as bit_rate, rate, width or height",
1696 ost->file_index, ost->index);
1699 assert_avoptions(ost->encoder_opts);
1700 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1701 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1702 "It takes bits/s as argument, not kbits/s\n");
1704 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
1706 av_log(NULL, AV_LOG_FATAL,
1707 "Error initializing the output stream codec context.\n");
1711 * FIXME: this is only so that the bitstream filters and parsers (that still
1712 * work with a codec context) get the parameter values.
1713 * This should go away with the new BSF/parser API.
1715 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1719 if (ost->enc_ctx->nb_coded_side_data) {
1722 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
1723 sizeof(*ost->st->side_data));
1724 if (!ost->st->side_data)
1725 return AVERROR(ENOMEM);
1727 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
1728 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
1729 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1731 sd_dst->data = av_malloc(sd_src->size);
1733 return AVERROR(ENOMEM);
1734 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1735 sd_dst->size = sd_src->size;
1736 sd_dst->type = sd_src->type;
1737 ost->st->nb_side_data++;
1741 ost->st->time_base = ost->enc_ctx->time_base;
1743 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1748 * FIXME: this is only so that the bitstream filters and parsers (that still
1749 * work with a codec context) get the parameter values.
1750 * This should go away with the new BSF/parser API.
1752 ret = avcodec_parameters_to_context(ost->st->codec, ost->st->codecpar);
1757 /* initialize bitstream filters for the output stream
1758 * needs to be done here, because the codec id for streamcopy is not
1759 * known until now */
1760 ret = init_output_bsfs(ost);
1767 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1768 AVCodecContext *avctx)
1774 for (p = kf; *p; p++)
1777 ost->forced_kf_count = n;
1778 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1779 if (!ost->forced_kf_pts) {
1780 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1785 for (i = 0; i < n; i++) {
1786 char *next = strchr(p, ',');
1791 t = parse_time_or_die("force_key_frames", p, 1);
1792 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1798 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1800 AVDictionaryEntry *e;
1802 uint8_t *encoder_string;
1803 int encoder_string_len;
1804 int format_flags = 0;
1806 e = av_dict_get(of->opts, "fflags", NULL, 0);
1808 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1811 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1814 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1815 encoder_string = av_mallocz(encoder_string_len);
1816 if (!encoder_string)
1819 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1820 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1821 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1822 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1823 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1826 static int transcode_init(void)
1828 int ret = 0, i, j, k;
1829 AVFormatContext *oc;
1835 /* init framerate emulation */
1836 for (i = 0; i < nb_input_files; i++) {
1837 InputFile *ifile = input_files[i];
1838 if (ifile->rate_emu)
1839 for (j = 0; j < ifile->nb_streams; j++)
1840 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1843 /* for each output stream, we compute the right encoding parameters */
1844 for (i = 0; i < nb_output_streams; i++) {
1845 ost = output_streams[i];
1846 oc = output_files[ost->file_index]->ctx;
1847 ist = get_input_stream(ost);
1849 if (ost->attachment_filename)
1853 ost->st->disposition = ist->st->disposition;
1856 if (ost->stream_copy) {
1857 AVCodecParameters *par_dst = ost->st->codecpar;
1858 AVCodecParameters *par_src = ist->st->codecpar;
1860 uint64_t extra_size;
1862 av_assert0(ist && !ost->filter);
1864 extra_size = (uint64_t)par_src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1866 if (extra_size > INT_MAX) {
1867 return AVERROR(EINVAL);
1870 /* if stream_copy is selected, no need to decode or encode */
1871 par_dst->codec_id = par_src->codec_id;
1872 par_dst->codec_type = par_src->codec_type;
1874 if (!par_dst->codec_tag) {
1875 if (!oc->oformat->codec_tag ||
1876 av_codec_get_id (oc->oformat->codec_tag, par_src->codec_tag) == par_dst->codec_id ||
1877 av_codec_get_tag(oc->oformat->codec_tag, par_src->codec_id) <= 0)
1878 par_dst->codec_tag = par_src->codec_tag;
1881 par_dst->bit_rate = par_src->bit_rate;
1882 par_dst->field_order = par_src->field_order;
1883 par_dst->chroma_location = par_src->chroma_location;
1884 par_dst->extradata = av_mallocz(extra_size);
1885 if (!par_dst->extradata) {
1886 return AVERROR(ENOMEM);
1888 memcpy(par_dst->extradata, par_src->extradata, par_src->extradata_size);
1889 par_dst->extradata_size = par_src->extradata_size;
1891 ost->st->time_base = ist->st->time_base;
1893 if (ist->st->nb_side_data) {
1894 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1895 sizeof(*ist->st->side_data));
1896 if (!ost->st->side_data)
1897 return AVERROR(ENOMEM);
1899 for (j = 0; j < ist->st->nb_side_data; j++) {
1900 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1901 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1903 sd_dst->data = av_malloc(sd_src->size);
1905 return AVERROR(ENOMEM);
1906 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1907 sd_dst->size = sd_src->size;
1908 sd_dst->type = sd_src->type;
1909 ost->st->nb_side_data++;
1913 ost->parser = av_parser_init(par_dst->codec_id);
1915 switch (par_dst->codec_type) {
1916 case AVMEDIA_TYPE_AUDIO:
1917 if (audio_volume != 256) {
1918 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1921 par_dst->channel_layout = par_src->channel_layout;
1922 par_dst->sample_rate = par_src->sample_rate;
1923 par_dst->channels = par_src->channels;
1924 par_dst->block_align = par_src->block_align;
1926 case AVMEDIA_TYPE_VIDEO:
1927 par_dst->format = par_src->format;
1928 par_dst->width = par_src->width;
1929 par_dst->height = par_src->height;
1930 if (ost->frame_aspect_ratio)
1931 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1932 else if (ist->st->sample_aspect_ratio.num)
1933 sar = ist->st->sample_aspect_ratio;
1935 sar = par_src->sample_aspect_ratio;
1936 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1938 case AVMEDIA_TYPE_SUBTITLE:
1939 par_dst->width = par_src->width;
1940 par_dst->height = par_src->height;
1942 case AVMEDIA_TYPE_DATA:
1943 case AVMEDIA_TYPE_ATTACHMENT:
1949 AVCodecContext *enc_ctx = ost->enc_ctx;
1950 AVCodecContext *dec_ctx = NULL;
1953 /* should only happen when a default codec is not present. */
1954 snprintf(error, sizeof(error), "Automatic encoder selection "
1955 "failed for output stream #%d:%d. Default encoder for "
1956 "format %s is probably disabled. Please choose an "
1957 "encoder manually.\n", ost->file_index, ost->index,
1959 ret = AVERROR(EINVAL);
1963 set_encoder_id(output_files[ost->file_index], ost);
1966 dec_ctx = ist->dec_ctx;
1968 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1969 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1973 * We want CFR output if and only if one of those is true:
1974 * 1) user specified output framerate with -r
1975 * 2) user specified -vsync cfr
1976 * 3) output format is CFR and the user didn't force vsync to
1977 * something else than CFR
1979 * in such a case, set ost->frame_rate
1981 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1982 !ost->frame_rate.num && ist &&
1983 (video_sync_method == VSYNC_CFR ||
1984 (video_sync_method == VSYNC_AUTO &&
1985 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1986 if (ist->framerate.num)
1987 ost->frame_rate = ist->framerate;
1988 else if (ist->st->avg_frame_rate.num)
1989 ost->frame_rate = ist->st->avg_frame_rate;
1991 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1992 "for the output stream #%d:%d, but no information "
1993 "about the input framerate is available. Falling "
1994 "back to a default value of 25fps. Use the -r option "
1995 "if you want a different framerate.\n",
1996 ost->file_index, ost->index);
1997 ost->frame_rate = (AVRational){ 25, 1 };
2000 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2001 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2002 ost->frame_rate = ost->enc->supported_framerates[idx];
2007 if (qsv_transcode_init(ost))
2012 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2013 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
2015 fg = init_simple_filtergraph(ist, ost);
2016 if (configure_filtergraph(fg)) {
2017 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2022 switch (enc_ctx->codec_type) {
2023 case AVMEDIA_TYPE_AUDIO:
2024 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
2025 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2026 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2027 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
2028 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
2030 case AVMEDIA_TYPE_VIDEO:
2031 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2033 enc_ctx->width = ost->filter->filter->inputs[0]->w;
2034 enc_ctx->height = ost->filter->filter->inputs[0]->h;
2035 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2036 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2037 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
2038 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2039 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2041 ost->st->avg_frame_rate = ost->frame_rate;
2044 (enc_ctx->width != dec_ctx->width ||
2045 enc_ctx->height != dec_ctx->height ||
2046 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
2047 enc_ctx->bits_per_raw_sample = 0;
2050 if (ost->forced_keyframes)
2051 parse_forced_key_frames(ost->forced_keyframes, ost,
2054 case AVMEDIA_TYPE_SUBTITLE:
2055 enc_ctx->time_base = (AVRational){1, 1000};
2064 /* init input streams */
2065 for (i = 0; i < nb_input_streams; i++)
2066 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2069 /* open each encoder */
2070 for (i = 0; i < nb_output_streams; i++) {
2071 ret = init_output_stream(output_streams[i], error, sizeof(error));
2077 /* discard unused programs */
2078 for (i = 0; i < nb_input_files; i++) {
2079 InputFile *ifile = input_files[i];
2080 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2081 AVProgram *p = ifile->ctx->programs[j];
2082 int discard = AVDISCARD_ALL;
2084 for (k = 0; k < p->nb_stream_indexes; k++)
2085 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2086 discard = AVDISCARD_DEFAULT;
2089 p->discard = discard;
2093 /* open files and write file headers */
2094 for (i = 0; i < nb_output_files; i++) {
2095 oc = output_files[i]->ctx;
2096 oc->interrupt_callback = int_cb;
2097 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2099 av_strerror(ret, errbuf, sizeof(errbuf));
2100 snprintf(error, sizeof(error),
2101 "Could not write header for output file #%d "
2102 "(incorrect codec parameters ?): %s",
2104 ret = AVERROR(EINVAL);
2107 assert_avoptions(output_files[i]->opts);
2108 if (strcmp(oc->oformat->name, "rtp")) {
2114 /* dump the file output parameters - cannot be done before in case
2116 for (i = 0; i < nb_output_files; i++) {
2117 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2120 /* dump the stream mapping */
2121 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2122 for (i = 0; i < nb_input_streams; i++) {
2123 ist = input_streams[i];
2125 for (j = 0; j < ist->nb_filters; j++) {
2126 if (ist->filters[j]->graph->graph_desc) {
2127 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2128 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2129 ist->filters[j]->name);
2130 if (nb_filtergraphs > 1)
2131 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2132 av_log(NULL, AV_LOG_INFO, "\n");
2137 for (i = 0; i < nb_output_streams; i++) {
2138 ost = output_streams[i];
2140 if (ost->attachment_filename) {
2141 /* an attached file */
2142 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2143 ost->attachment_filename, ost->file_index, ost->index);
2147 if (ost->filter && ost->filter->graph->graph_desc) {
2148 /* output from a complex graph */
2149 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2150 if (nb_filtergraphs > 1)
2151 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2153 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2154 ost->index, ost->enc ? ost->enc->name : "?");
2158 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2159 input_streams[ost->source_index]->file_index,
2160 input_streams[ost->source_index]->st->index,
2163 if (ost->sync_ist != input_streams[ost->source_index])
2164 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2165 ost->sync_ist->file_index,
2166 ost->sync_ist->st->index);
2167 if (ost->stream_copy)
2168 av_log(NULL, AV_LOG_INFO, " (copy)");
2170 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2171 const AVCodec *out_codec = ost->enc;
2172 const char *decoder_name = "?";
2173 const char *in_codec_name = "?";
2174 const char *encoder_name = "?";
2175 const char *out_codec_name = "?";
2176 const AVCodecDescriptor *desc;
2179 decoder_name = in_codec->name;
2180 desc = avcodec_descriptor_get(in_codec->id);
2182 in_codec_name = desc->name;
2183 if (!strcmp(decoder_name, in_codec_name))
2184 decoder_name = "native";
2188 encoder_name = out_codec->name;
2189 desc = avcodec_descriptor_get(out_codec->id);
2191 out_codec_name = desc->name;
2192 if (!strcmp(encoder_name, out_codec_name))
2193 encoder_name = "native";
2196 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2197 in_codec_name, decoder_name,
2198 out_codec_name, encoder_name);
2200 av_log(NULL, AV_LOG_INFO, "\n");
2204 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2215 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2216 static int need_output(void)
2220 for (i = 0; i < nb_output_streams; i++) {
2221 OutputStream *ost = output_streams[i];
2222 OutputFile *of = output_files[ost->file_index];
2223 AVFormatContext *os = output_files[ost->file_index]->ctx;
2225 if (ost->finished ||
2226 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2228 if (ost->frame_number >= ost->max_frames) {
2230 for (j = 0; j < of->ctx->nb_streams; j++)
2231 output_streams[of->ost_index + j]->finished = 1;
2241 static InputFile *select_input_file(void)
2243 InputFile *ifile = NULL;
2244 int64_t ipts_min = INT64_MAX;
2247 for (i = 0; i < nb_input_streams; i++) {
2248 InputStream *ist = input_streams[i];
2249 int64_t ipts = ist->last_dts;
2251 if (ist->discard || input_files[ist->file_index]->eagain)
2253 if (!input_files[ist->file_index]->eof_reached) {
2254 if (ipts < ipts_min) {
2256 ifile = input_files[ist->file_index];
2265 static void *input_thread(void *arg)
2270 while (!transcoding_finished && ret >= 0) {
2272 ret = av_read_frame(f->ctx, &pkt);
2274 if (ret == AVERROR(EAGAIN)) {
2281 pthread_mutex_lock(&f->fifo_lock);
2282 while (!av_fifo_space(f->fifo))
2283 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2285 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2287 pthread_mutex_unlock(&f->fifo_lock);
2294 static void free_input_threads(void)
2298 if (nb_input_files == 1)
2301 transcoding_finished = 1;
2303 for (i = 0; i < nb_input_files; i++) {
2304 InputFile *f = input_files[i];
2307 if (!f->fifo || f->joined)
2310 pthread_mutex_lock(&f->fifo_lock);
2311 while (av_fifo_size(f->fifo)) {
2312 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2313 av_packet_unref(&pkt);
2315 pthread_cond_signal(&f->fifo_cond);
2316 pthread_mutex_unlock(&f->fifo_lock);
2318 pthread_join(f->thread, NULL);
2321 while (av_fifo_size(f->fifo)) {
2322 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2323 av_packet_unref(&pkt);
2325 av_fifo_free(f->fifo);
2329 static int init_input_threads(void)
2333 if (nb_input_files == 1)
2336 for (i = 0; i < nb_input_files; i++) {
2337 InputFile *f = input_files[i];
2339 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2340 return AVERROR(ENOMEM);
2342 pthread_mutex_init(&f->fifo_lock, NULL);
2343 pthread_cond_init (&f->fifo_cond, NULL);
2345 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2346 return AVERROR(ret);
2351 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2355 pthread_mutex_lock(&f->fifo_lock);
2357 if (av_fifo_size(f->fifo)) {
2358 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2359 pthread_cond_signal(&f->fifo_cond);
2364 ret = AVERROR(EAGAIN);
2367 pthread_mutex_unlock(&f->fifo_lock);
2373 static int get_input_packet(InputFile *f, AVPacket *pkt)
2377 for (i = 0; i < f->nb_streams; i++) {
2378 InputStream *ist = input_streams[f->ist_index + i];
2379 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2380 int64_t now = av_gettime_relative() - ist->start;
2382 return AVERROR(EAGAIN);
2387 if (nb_input_files > 1)
2388 return get_input_packet_mt(f, pkt);
2390 return av_read_frame(f->ctx, pkt);
2393 static int got_eagain(void)
2396 for (i = 0; i < nb_input_files; i++)
2397 if (input_files[i]->eagain)
2402 static void reset_eagain(void)
2405 for (i = 0; i < nb_input_files; i++)
2406 input_files[i]->eagain = 0;
2409 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2410 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2411 AVRational time_base)
2417 return tmp_time_base;
2420 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2423 return tmp_time_base;
2429 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2432 AVCodecContext *avctx;
2433 int i, ret, has_audio = 0;
2434 int64_t duration = 0;
2436 ret = av_seek_frame(is, -1, is->start_time, 0);
2440 for (i = 0; i < ifile->nb_streams; i++) {
2441 ist = input_streams[ifile->ist_index + i];
2442 avctx = ist->dec_ctx;
2445 if (ist->decoding_needed) {
2446 process_input_packet(ist, NULL, 1);
2447 avcodec_flush_buffers(avctx);
2450 /* duration is the length of the last frame in a stream
2451 * when audio stream is present we don't care about
2452 * last video frame length because it's not defined exactly */
2453 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2457 for (i = 0; i < ifile->nb_streams; i++) {
2458 ist = input_streams[ifile->ist_index + i];
2459 avctx = ist->dec_ctx;
2462 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2463 AVRational sample_rate = {1, avctx->sample_rate};
2465 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2469 if (ist->framerate.num) {
2470 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2471 } else if (ist->st->avg_frame_rate.num) {
2472 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2473 } else duration = 1;
2475 if (!ifile->duration)
2476 ifile->time_base = ist->st->time_base;
2477 /* the total duration of the stream, max_pts - min_pts is
2478 * the duration of the stream without the last frame */
2479 duration += ist->max_pts - ist->min_pts;
2480 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2484 if (ifile->loop > 0)
2491 * Read one packet from an input file and send it for
2492 * - decoding -> lavfi (audio/video)
2493 * - decoding -> encoding -> muxing (subtitles)
2494 * - muxing (streamcopy)
2497 * - 0 -- one packet was read and processed
2498 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2499 * this function should be called again
2500 * - AVERROR_EOF -- this function should not be called again
2502 static int process_input(void)
2505 AVFormatContext *is;
2511 /* select the stream that we must read now */
2512 ifile = select_input_file();
2513 /* if none, if is finished */
2518 return AVERROR(EAGAIN);
2520 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2525 ret = get_input_packet(ifile, &pkt);
2527 if (ret == AVERROR(EAGAIN)) {
2531 if (ret < 0 && ifile->loop) {
2532 if ((ret = seek_to_start(ifile, is)) < 0)
2534 ret = get_input_packet(ifile, &pkt);
2537 if (ret != AVERROR_EOF) {
2538 print_error(is->filename, ret);
2542 ifile->eof_reached = 1;
2544 for (i = 0; i < ifile->nb_streams; i++) {
2545 ist = input_streams[ifile->ist_index + i];
2546 if (ist->decoding_needed)
2547 process_input_packet(ist, NULL, 0);
2549 /* mark all outputs that don't go through lavfi as finished */
2550 for (j = 0; j < nb_output_streams; j++) {
2551 OutputStream *ost = output_streams[j];
2553 if (ost->source_index == ifile->ist_index + i &&
2554 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2555 finish_output_stream(ost);
2559 return AVERROR(EAGAIN);
2565 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2566 is->streams[pkt.stream_index]);
2568 /* the following test is needed in case new streams appear
2569 dynamically in stream : we ignore them */
2570 if (pkt.stream_index >= ifile->nb_streams)
2571 goto discard_packet;
2573 ist = input_streams[ifile->ist_index + pkt.stream_index];
2575 ist->data_size += pkt.size;
2579 goto discard_packet;
2581 /* add the stream-global side data to the first packet */
2582 if (ist->nb_packets == 1)
2583 for (i = 0; i < ist->st->nb_side_data; i++) {
2584 AVPacketSideData *src_sd = &ist->st->side_data[i];
2587 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2589 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2592 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2596 memcpy(dst_data, src_sd->data, src_sd->size);
2599 if (pkt.dts != AV_NOPTS_VALUE)
2600 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2601 if (pkt.pts != AV_NOPTS_VALUE)
2602 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2604 if (pkt.pts != AV_NOPTS_VALUE)
2605 pkt.pts *= ist->ts_scale;
2606 if (pkt.dts != AV_NOPTS_VALUE)
2607 pkt.dts *= ist->ts_scale;
2609 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2610 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2611 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2612 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2613 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2614 int64_t delta = pkt_dts - ist->next_dts;
2616 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2617 ifile->ts_offset -= delta;
2618 av_log(NULL, AV_LOG_DEBUG,
2619 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2620 delta, ifile->ts_offset);
2621 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2622 if (pkt.pts != AV_NOPTS_VALUE)
2623 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2626 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2627 if (pkt.pts != AV_NOPTS_VALUE) {
2628 pkt.pts += duration;
2629 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2630 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2633 if (pkt.dts != AV_NOPTS_VALUE)
2634 pkt.dts += duration;
2636 process_input_packet(ist, &pkt, 0);
2639 av_packet_unref(&pkt);
2645 * The following code is the main loop of the file converter
2647 static int transcode(void)
2649 int ret, i, need_input = 1;
2650 AVFormatContext *os;
2653 int64_t timer_start;
2655 ret = transcode_init();
2659 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2662 timer_start = av_gettime_relative();
2665 if ((ret = init_input_threads()) < 0)
2669 while (!received_sigterm) {
2670 /* check if there's any stream where output is still needed */
2671 if (!need_output()) {
2672 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2676 /* read and process one input packet if needed */
2678 ret = process_input();
2679 if (ret == AVERROR_EOF)
2683 ret = poll_filters();
2684 if (ret < 0 && ret != AVERROR_EOF) {
2686 av_strerror(ret, errbuf, sizeof(errbuf));
2688 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2692 /* dump report by using the output first video and audio streams */
2693 print_report(0, timer_start);
2696 free_input_threads();
2699 /* at the end of stream, we must flush the decoder buffers */
2700 for (i = 0; i < nb_input_streams; i++) {
2701 ist = input_streams[i];
2702 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2703 process_input_packet(ist, NULL, 0);
2711 /* write the trailer if needed and close file */
2712 for (i = 0; i < nb_output_files; i++) {
2713 os = output_files[i]->ctx;
2714 av_write_trailer(os);
2717 /* dump report by using the first video and audio streams */
2718 print_report(1, timer_start);
2720 /* close each encoder */
2721 for (i = 0; i < nb_output_streams; i++) {
2722 ost = output_streams[i];
2723 if (ost->encoding_needed) {
2724 av_freep(&ost->enc_ctx->stats_in);
2728 /* close each decoder */
2729 for (i = 0; i < nb_input_streams; i++) {
2730 ist = input_streams[i];
2731 if (ist->decoding_needed) {
2732 avcodec_close(ist->dec_ctx);
2733 if (ist->hwaccel_uninit)
2734 ist->hwaccel_uninit(ist->dec_ctx);
2738 av_buffer_unref(&hw_device_ctx);
2745 free_input_threads();
2748 if (output_streams) {
2749 for (i = 0; i < nb_output_streams; i++) {
2750 ost = output_streams[i];
2753 fclose(ost->logfile);
2754 ost->logfile = NULL;
2756 av_free(ost->forced_kf_pts);
2757 av_dict_free(&ost->encoder_opts);
2758 av_dict_free(&ost->resample_opts);
2765 static int64_t getutime(void)
2768 struct rusage rusage;
2770 getrusage(RUSAGE_SELF, &rusage);
2771 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2772 #elif HAVE_GETPROCESSTIMES
2774 FILETIME c, e, k, u;
2775 proc = GetCurrentProcess();
2776 GetProcessTimes(proc, &c, &e, &k, &u);
2777 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2779 return av_gettime_relative();
2783 static int64_t getmaxrss(void)
2785 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2786 struct rusage rusage;
2787 getrusage(RUSAGE_SELF, &rusage);
2788 return (int64_t)rusage.ru_maxrss * 1024;
2789 #elif HAVE_GETPROCESSMEMORYINFO
2791 PROCESS_MEMORY_COUNTERS memcounters;
2792 proc = GetCurrentProcess();
2793 memcounters.cb = sizeof(memcounters);
2794 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2795 return memcounters.PeakPagefileUsage;
2801 int main(int argc, char **argv)
2806 register_exit(avconv_cleanup);
2808 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2809 parse_loglevel(argc, argv, options);
2811 avcodec_register_all();
2813 avdevice_register_all();
2815 avfilter_register_all();
2817 avformat_network_init();
2821 /* parse options and open all input/output files */
2822 ret = avconv_parse_options(argc, argv);
2826 if (nb_output_files <= 0 && nb_input_files == 0) {
2828 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2832 /* file converter / grab */
2833 if (nb_output_files <= 0) {
2834 fprintf(stderr, "At least one output file must be specified\n");
2839 if (transcode() < 0)
2841 ti = getutime() - ti;
2843 int maxrss = getmaxrss() / 1024;
2844 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);