3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/internal.h"
42 #include "libavutil/intreadwrite.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/mathematics.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/imgutils.h"
49 #include "libavutil/time.h"
50 #include "libavformat/os_support.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/buffersrc.h"
54 # include "libavfilter/buffersink.h"
56 #if HAVE_SYS_RESOURCE_H
58 #include <sys/types.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
63 #if HAVE_GETPROCESSMEMORYINFO
69 #include <sys/select.h>
81 #include "libavutil/avassert.h"
83 const char program_name[] = "avconv";
84 const int program_birth_year = 2000;
86 static FILE *vstats_file;
88 static int nb_frames_drop = 0;
93 /* signal to input threads that they should exit; set by the main thread */
94 static int transcoding_finished;
97 InputStream **input_streams = NULL;
98 int nb_input_streams = 0;
99 InputFile **input_files = NULL;
100 int nb_input_files = 0;
102 OutputStream **output_streams = NULL;
103 int nb_output_streams = 0;
104 OutputFile **output_files = NULL;
105 int nb_output_files = 0;
107 FilterGraph **filtergraphs;
110 static void term_exit(void)
112 av_log(NULL, AV_LOG_QUIET, "");
115 static volatile int received_sigterm = 0;
116 static volatile int received_nb_signals = 0;
119 sigterm_handler(int sig)
121 received_sigterm = sig;
122 received_nb_signals++;
126 static void term_init(void)
128 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
129 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
131 signal(SIGXCPU, sigterm_handler);
135 static int decode_interrupt_cb(void *ctx)
137 return received_nb_signals > 1;
140 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
142 static void avconv_cleanup(int ret)
146 for (i = 0; i < nb_filtergraphs; i++) {
147 FilterGraph *fg = filtergraphs[i];
148 avfilter_graph_free(&fg->graph);
149 for (j = 0; j < fg->nb_inputs; j++) {
150 av_freep(&fg->inputs[j]->name);
151 av_freep(&fg->inputs[j]);
153 av_freep(&fg->inputs);
154 for (j = 0; j < fg->nb_outputs; j++) {
155 av_freep(&fg->outputs[j]->name);
156 av_freep(&fg->outputs[j]);
158 av_freep(&fg->outputs);
159 av_freep(&fg->graph_desc);
161 av_freep(&filtergraphs[i]);
163 av_freep(&filtergraphs);
166 for (i = 0; i < nb_output_files; i++) {
167 OutputFile *of = output_files[i];
168 AVFormatContext *s = of->ctx;
169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avformat_free_context(s);
172 av_dict_free(&of->opts);
174 av_freep(&output_files[i]);
176 for (i = 0; i < nb_output_streams; i++) {
177 OutputStream *ost = output_streams[i];
178 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
180 AVBitStreamFilterContext *next = bsfc->next;
181 av_bitstream_filter_close(bsfc);
184 ost->bitstream_filters = NULL;
185 av_frame_free(&ost->filtered_frame);
187 av_parser_close(ost->parser);
189 av_freep(&ost->forced_keyframes);
190 av_freep(&ost->avfilter);
191 av_freep(&ost->logfile_prefix);
193 avcodec_free_context(&ost->enc_ctx);
195 av_freep(&output_streams[i]);
197 for (i = 0; i < nb_input_files; i++) {
198 avformat_close_input(&input_files[i]->ctx);
199 av_freep(&input_files[i]);
201 for (i = 0; i < nb_input_streams; i++) {
202 InputStream *ist = input_streams[i];
204 av_frame_free(&ist->decoded_frame);
205 av_frame_free(&ist->filter_frame);
206 av_dict_free(&ist->decoder_opts);
207 av_freep(&ist->filters);
208 av_freep(&ist->hwaccel_device);
210 avcodec_free_context(&ist->dec_ctx);
212 av_freep(&input_streams[i]);
217 av_free(vstats_filename);
219 av_freep(&input_streams);
220 av_freep(&input_files);
221 av_freep(&output_streams);
222 av_freep(&output_files);
226 avformat_network_deinit();
228 if (received_sigterm) {
229 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
230 (int) received_sigterm);
235 void assert_avoptions(AVDictionary *m)
237 AVDictionaryEntry *t;
238 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
239 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
244 static void abort_codec_experimental(AVCodec *c, int encoder)
246 const char *codec_string = encoder ? "encoder" : "decoder";
248 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
249 "results.\nAdd '-strict experimental' if you want to use it.\n",
250 codec_string, c->name);
251 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
252 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
253 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
254 codec_string, codec->name);
258 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
260 AVStream *st = ost->st;
261 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
265 * Audio encoders may split the packets -- #frames in != #packets out.
266 * But there is no reordering, so we can limit the number of output packets
267 * by simply dropping them here.
268 * Counting encoded video frames needs to be done separately because of
269 * reordering, see do_video_out()
271 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {
272 if (ost->frame_number >= ost->max_frames) {
273 av_packet_unref(pkt);
278 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
279 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
281 ost->quality = sd ? *(int *)sd : -1;
283 if (ost->frame_rate.num) {
284 pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
290 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
291 AVPacket new_pkt = *pkt;
292 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
293 &new_pkt.data, &new_pkt.size,
294 pkt->data, pkt->size,
295 pkt->flags & AV_PKT_FLAG_KEY);
297 av_packet_unref(pkt);
298 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
299 av_buffer_default_free, NULL, 0);
303 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
304 bsfc->filter->name, pkt->stream_index,
305 avctx->codec ? avctx->codec->name : "copy");
315 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
316 ost->last_mux_dts != AV_NOPTS_VALUE &&
317 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
318 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
319 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
320 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
322 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
325 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
326 "in incorrect timestamps in the output file.\n",
327 ost->last_mux_dts + 1);
328 pkt->dts = ost->last_mux_dts + 1;
329 if (pkt->pts != AV_NOPTS_VALUE)
330 pkt->pts = FFMAX(pkt->pts, pkt->dts);
332 ost->last_mux_dts = pkt->dts;
334 ost->data_size += pkt->size;
335 ost->packets_written++;
337 pkt->stream_index = ost->index;
338 ret = av_interleaved_write_frame(s, pkt);
340 print_error("av_interleaved_write_frame()", ret);
345 static int check_recording_time(OutputStream *ost)
347 OutputFile *of = output_files[ost->file_index];
349 if (of->recording_time != INT64_MAX &&
350 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
351 AV_TIME_BASE_Q) >= 0) {
358 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
361 AVCodecContext *enc = ost->enc_ctx;
365 av_init_packet(&pkt);
369 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
370 frame->pts = ost->sync_opts;
371 ost->sync_opts = frame->pts + frame->nb_samples;
373 ost->samples_encoded += frame->nb_samples;
374 ost->frames_encoded++;
376 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
377 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
382 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
383 write_frame(s, &pkt, ost);
387 static void do_subtitle_out(AVFormatContext *s,
393 static uint8_t *subtitle_out = NULL;
394 int subtitle_out_max_size = 1024 * 1024;
395 int subtitle_out_size, nb, i;
399 if (pts == AV_NOPTS_VALUE) {
400 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
409 subtitle_out = av_malloc(subtitle_out_max_size);
412 /* Note: DVB subtitle need one packet to draw them and one other
413 packet to clear them */
414 /* XXX: signal it in the codec context ? */
415 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
420 for (i = 0; i < nb; i++) {
421 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
422 if (!check_recording_time(ost))
425 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
426 // start_display_time is required to be 0
427 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
428 sub->end_display_time -= sub->start_display_time;
429 sub->start_display_time = 0;
431 ost->frames_encoded++;
433 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
434 subtitle_out_max_size, sub);
435 if (subtitle_out_size < 0) {
436 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
440 av_init_packet(&pkt);
441 pkt.data = subtitle_out;
442 pkt.size = subtitle_out_size;
443 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
444 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
445 /* XXX: the pts correction is handled here. Maybe handling
446 it in the codec would be better */
448 pkt.pts += 90 * sub->start_display_time;
450 pkt.pts += 90 * sub->end_display_time;
452 write_frame(s, &pkt, ost);
456 static void do_video_out(AVFormatContext *s,
461 int ret, format_video_sync, got_packet;
463 AVCodecContext *enc = ost->enc_ctx;
467 format_video_sync = video_sync_method;
468 if (format_video_sync == VSYNC_AUTO)
469 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
470 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
471 if (format_video_sync != VSYNC_PASSTHROUGH &&
473 in_picture->pts != AV_NOPTS_VALUE &&
474 in_picture->pts < ost->sync_opts) {
476 av_log(NULL, AV_LOG_WARNING,
477 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
478 ost->frame_number, ost->st->index, in_picture->pts);
482 if (in_picture->pts == AV_NOPTS_VALUE)
483 in_picture->pts = ost->sync_opts;
484 ost->sync_opts = in_picture->pts;
487 if (!ost->frame_number)
488 ost->first_pts = in_picture->pts;
490 av_init_packet(&pkt);
494 if (ost->frame_number >= ost->max_frames)
497 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
498 ost->top_field_first >= 0)
499 in_picture->top_field_first = !!ost->top_field_first;
501 in_picture->quality = enc->global_quality;
502 in_picture->pict_type = 0;
503 if (ost->forced_kf_index < ost->forced_kf_count &&
504 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
505 in_picture->pict_type = AV_PICTURE_TYPE_I;
506 ost->forced_kf_index++;
509 ost->frames_encoded++;
511 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
513 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
518 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
519 write_frame(s, &pkt, ost);
520 *frame_size = pkt.size;
522 /* if two pass, output log */
523 if (ost->logfile && enc->stats_out) {
524 fprintf(ost->logfile, "%s", enc->stats_out);
530 * For video, number of frames in == number of packets out.
531 * But there may be reordering, so we can't throw away frames on encoder
532 * flush, we need to limit them here, before they go into encoder.
537 static double psnr(double d)
539 return -10.0 * log(d) / log(10.0);
542 static void do_video_stats(OutputStream *ost, int frame_size)
546 double ti1, bitrate, avg_bitrate;
548 /* this is executed just the first time do_video_stats is called */
550 vstats_file = fopen(vstats_filename, "w");
558 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
559 frame_number = ost->frame_number;
560 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
561 ost->quality / (float)FF_QP2LAMBDA);
563 #if FF_API_CODED_FRAME
564 FF_DISABLE_DEPRECATION_WARNINGS
565 if (enc->flags & AV_CODEC_FLAG_PSNR)
566 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
567 FF_ENABLE_DEPRECATION_WARNINGS
570 fprintf(vstats_file,"f_size= %6d ", frame_size);
571 /* compute pts value */
572 ti1 = ost->sync_opts * av_q2d(enc->time_base);
576 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
577 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
578 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
579 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
580 #if FF_API_CODED_FRAME
581 FF_DISABLE_DEPRECATION_WARNINGS
582 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
583 FF_ENABLE_DEPRECATION_WARNINGS
589 * Read one frame for lavfi output for ost and encode it.
591 static int poll_filter(OutputStream *ost)
593 OutputFile *of = output_files[ost->file_index];
594 AVFrame *filtered_frame = NULL;
597 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
598 return AVERROR(ENOMEM);
600 filtered_frame = ost->filtered_frame;
602 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
603 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
604 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
605 ost->enc_ctx->frame_size);
607 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
612 if (filtered_frame->pts != AV_NOPTS_VALUE) {
613 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
614 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
615 ost->filter->filter->inputs[0]->time_base,
616 ost->enc_ctx->time_base) -
617 av_rescale_q(start_time,
619 ost->enc_ctx->time_base);
622 switch (ost->filter->filter->inputs[0]->type) {
623 case AVMEDIA_TYPE_VIDEO:
624 if (!ost->frame_aspect_ratio)
625 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
627 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
628 if (vstats_filename && frame_size)
629 do_video_stats(ost, frame_size);
631 case AVMEDIA_TYPE_AUDIO:
632 do_audio_out(of->ctx, ost, filtered_frame);
635 // TODO support subtitle filters
639 av_frame_unref(filtered_frame);
644 static void finish_output_stream(OutputStream *ost)
646 OutputFile *of = output_files[ost->file_index];
652 for (i = 0; i < of->ctx->nb_streams; i++)
653 output_streams[of->ost_index + i]->finished = 1;
658 * Read as many frames from possible from lavfi and encode them.
660 * Always read from the active stream with the lowest timestamp. If no frames
661 * are available for it then return EAGAIN and wait for more input. This way we
662 * can use lavfi sources that generate unlimited amount of frames without memory
665 static int poll_filters(void)
669 while (ret >= 0 && !received_sigterm) {
670 OutputStream *ost = NULL;
671 int64_t min_pts = INT64_MAX;
673 /* choose output stream with the lowest timestamp */
674 for (i = 0; i < nb_output_streams; i++) {
675 int64_t pts = output_streams[i]->sync_opts;
677 if (!output_streams[i]->filter || output_streams[i]->finished)
680 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
684 ost = output_streams[i];
691 ret = poll_filter(ost);
693 if (ret == AVERROR_EOF) {
694 finish_output_stream(ost);
696 } else if (ret == AVERROR(EAGAIN))
703 static void print_final_stats(int64_t total_size)
705 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
706 uint64_t data_size = 0;
707 float percent = -1.0;
710 for (i = 0; i < nb_output_streams; i++) {
711 OutputStream *ost = output_streams[i];
712 switch (ost->enc_ctx->codec_type) {
713 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
714 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
715 default: other_size += ost->data_size; break;
717 extra_size += ost->enc_ctx->extradata_size;
718 data_size += ost->data_size;
721 if (data_size && total_size >= data_size)
722 percent = 100.0 * (total_size - data_size) / data_size;
724 av_log(NULL, AV_LOG_INFO, "\n");
725 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
729 extra_size / 1024.0);
731 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
733 av_log(NULL, AV_LOG_INFO, "unknown");
734 av_log(NULL, AV_LOG_INFO, "\n");
736 /* print verbose per-stream stats */
737 for (i = 0; i < nb_input_files; i++) {
738 InputFile *f = input_files[i];
739 uint64_t total_packets = 0, total_size = 0;
741 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
742 i, f->ctx->filename);
744 for (j = 0; j < f->nb_streams; j++) {
745 InputStream *ist = input_streams[f->ist_index + j];
746 enum AVMediaType type = ist->dec_ctx->codec_type;
748 total_size += ist->data_size;
749 total_packets += ist->nb_packets;
751 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
752 i, j, media_type_string(type));
753 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
754 ist->nb_packets, ist->data_size);
756 if (ist->decoding_needed) {
757 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
758 ist->frames_decoded);
759 if (type == AVMEDIA_TYPE_AUDIO)
760 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
761 av_log(NULL, AV_LOG_VERBOSE, "; ");
764 av_log(NULL, AV_LOG_VERBOSE, "\n");
767 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
768 total_packets, total_size);
771 for (i = 0; i < nb_output_files; i++) {
772 OutputFile *of = output_files[i];
773 uint64_t total_packets = 0, total_size = 0;
775 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
776 i, of->ctx->filename);
778 for (j = 0; j < of->ctx->nb_streams; j++) {
779 OutputStream *ost = output_streams[of->ost_index + j];
780 enum AVMediaType type = ost->enc_ctx->codec_type;
782 total_size += ost->data_size;
783 total_packets += ost->packets_written;
785 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
786 i, j, media_type_string(type));
787 if (ost->encoding_needed) {
788 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
789 ost->frames_encoded);
790 if (type == AVMEDIA_TYPE_AUDIO)
791 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
792 av_log(NULL, AV_LOG_VERBOSE, "; ");
795 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
796 ost->packets_written, ost->data_size);
798 av_log(NULL, AV_LOG_VERBOSE, "\n");
801 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
802 total_packets, total_size);
806 static void print_report(int is_last_report, int64_t timer_start)
813 int frame_number, vid, i;
814 double bitrate, ti1, pts;
815 static int64_t last_time = -1;
816 static int qp_histogram[52];
818 if (!print_stats && !is_last_report)
821 if (!is_last_report) {
823 /* display the report every 0.5 seconds */
824 cur_time = av_gettime_relative();
825 if (last_time == -1) {
826 last_time = cur_time;
829 if ((cur_time - last_time) < 500000)
831 last_time = cur_time;
835 oc = output_files[0]->ctx;
837 total_size = avio_size(oc->pb);
838 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
839 total_size = avio_tell(oc->pb);
840 if (total_size < 0) {
842 av_strerror(total_size, errbuf, sizeof(errbuf));
843 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
844 "avio_tell() failed: %s\n", errbuf);
851 for (i = 0; i < nb_output_streams; i++) {
853 ost = output_streams[i];
855 if (!ost->stream_copy)
856 q = ost->quality / (float) FF_QP2LAMBDA;
858 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
859 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
861 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
862 float t = (av_gettime_relative() - timer_start) / 1000000.0;
864 frame_number = ost->frame_number;
865 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
866 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
868 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
872 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
874 for (j = 0; j < 32; j++)
875 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
878 #if FF_API_CODED_FRAME
879 FF_DISABLE_DEPRECATION_WARNINGS
880 if (enc->flags & AV_CODEC_FLAG_PSNR) {
882 double error, error_sum = 0;
883 double scale, scale_sum = 0;
884 char type[3] = { 'Y','U','V' };
885 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
886 for (j = 0; j < 3; j++) {
887 if (is_last_report) {
888 error = enc->error[j];
889 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
891 error = enc->coded_frame->error[j];
892 scale = enc->width * enc->height * 255.0 * 255.0;
898 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
900 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
902 FF_ENABLE_DEPRECATION_WARNINGS
906 /* compute min output value */
907 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
908 if ((pts < ti1) && (pts > 0))
914 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
916 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
917 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
918 (double)total_size / 1024, ti1, bitrate);
921 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
924 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
929 print_final_stats(total_size);
933 static void flush_encoders(void)
937 for (i = 0; i < nb_output_streams; i++) {
938 OutputStream *ost = output_streams[i];
939 AVCodecContext *enc = ost->enc_ctx;
940 AVFormatContext *os = output_files[ost->file_index]->ctx;
941 int stop_encoding = 0;
943 if (!ost->encoding_needed)
946 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
950 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
953 switch (enc->codec_type) {
954 case AVMEDIA_TYPE_AUDIO:
955 encode = avcodec_encode_audio2;
958 case AVMEDIA_TYPE_VIDEO:
959 encode = avcodec_encode_video2;
969 av_init_packet(&pkt);
973 ret = encode(enc, &pkt, NULL, &got_packet);
975 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
978 if (ost->logfile && enc->stats_out) {
979 fprintf(ost->logfile, "%s", enc->stats_out);
985 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
986 write_frame(os, &pkt, ost);
996 * Check whether a packet from ist should be written into ost at this time
998 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1000 OutputFile *of = output_files[ost->file_index];
1001 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1003 if (ost->source_index != ist_index)
1006 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1012 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1014 OutputFile *of = output_files[ost->file_index];
1015 InputFile *f = input_files [ist->file_index];
1016 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1017 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1020 av_init_packet(&opkt);
1022 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1023 !ost->copy_initial_nonkeyframes)
1026 if (of->recording_time != INT64_MAX &&
1027 ist->last_dts >= of->recording_time + start_time) {
1032 if (f->recording_time != INT64_MAX) {
1033 start_time = f->ctx->start_time;
1034 if (f->start_time != AV_NOPTS_VALUE)
1035 start_time += f->start_time;
1036 if (ist->last_dts >= f->recording_time + start_time) {
1042 /* force the input stream PTS */
1043 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1046 if (pkt->pts != AV_NOPTS_VALUE)
1047 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1049 opkt.pts = AV_NOPTS_VALUE;
1051 if (pkt->dts == AV_NOPTS_VALUE)
1052 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1054 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1055 opkt.dts -= ost_tb_start_time;
1057 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1058 opkt.flags = pkt->flags;
1060 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1061 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1062 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1063 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1064 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1066 if (av_parser_change(ost->parser, ost->st->codec,
1067 &opkt.data, &opkt.size,
1068 pkt->data, pkt->size,
1069 pkt->flags & AV_PKT_FLAG_KEY)) {
1070 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1075 opkt.data = pkt->data;
1076 opkt.size = pkt->size;
1079 write_frame(of->ctx, &opkt, ost);
1082 int guess_input_channel_layout(InputStream *ist)
1084 AVCodecContext *dec = ist->dec_ctx;
1086 if (!dec->channel_layout) {
1087 char layout_name[256];
1089 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1090 if (!dec->channel_layout)
1092 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1093 dec->channels, dec->channel_layout);
1094 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1095 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1100 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1102 AVFrame *decoded_frame, *f;
1103 AVCodecContext *avctx = ist->dec_ctx;
1104 int i, ret, err = 0, resample_changed;
1106 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1107 return AVERROR(ENOMEM);
1108 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1109 return AVERROR(ENOMEM);
1110 decoded_frame = ist->decoded_frame;
1112 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1113 if (!*got_output || ret < 0)
1116 ist->samples_decoded += decoded_frame->nb_samples;
1117 ist->frames_decoded++;
1119 /* if the decoder provides a pts, use it instead of the last packet pts.
1120 the decoder could be delaying output by a packet or more. */
1121 if (decoded_frame->pts != AV_NOPTS_VALUE)
1122 ist->next_dts = decoded_frame->pts;
1123 else if (pkt->pts != AV_NOPTS_VALUE)
1124 decoded_frame->pts = pkt->pts;
1125 pkt->pts = AV_NOPTS_VALUE;
1127 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1128 ist->resample_channels != avctx->channels ||
1129 ist->resample_channel_layout != decoded_frame->channel_layout ||
1130 ist->resample_sample_rate != decoded_frame->sample_rate;
1131 if (resample_changed) {
1132 char layout1[64], layout2[64];
1134 if (!guess_input_channel_layout(ist)) {
1135 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1136 "layout for Input Stream #%d.%d\n", ist->file_index,
1140 decoded_frame->channel_layout = avctx->channel_layout;
1142 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1143 ist->resample_channel_layout);
1144 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1145 decoded_frame->channel_layout);
1147 av_log(NULL, AV_LOG_INFO,
1148 "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",
1149 ist->file_index, ist->st->index,
1150 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1151 ist->resample_channels, layout1,
1152 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1153 avctx->channels, layout2);
1155 ist->resample_sample_fmt = decoded_frame->format;
1156 ist->resample_sample_rate = decoded_frame->sample_rate;
1157 ist->resample_channel_layout = decoded_frame->channel_layout;
1158 ist->resample_channels = avctx->channels;
1160 for (i = 0; i < nb_filtergraphs; i++)
1161 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1162 configure_filtergraph(filtergraphs[i]) < 0) {
1163 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1168 if (decoded_frame->pts != AV_NOPTS_VALUE)
1169 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1171 (AVRational){1, avctx->sample_rate});
1172 ist->nb_samples = decoded_frame->nb_samples;
1173 for (i = 0; i < ist->nb_filters; i++) {
1174 if (i < ist->nb_filters - 1) {
1175 f = ist->filter_frame;
1176 err = av_frame_ref(f, decoded_frame);
1182 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1187 av_frame_unref(ist->filter_frame);
1188 av_frame_unref(decoded_frame);
1189 return err < 0 ? err : ret;
1192 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1194 AVFrame *decoded_frame, *f;
1195 int i, ret = 0, err = 0, resample_changed;
1197 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1198 return AVERROR(ENOMEM);
1199 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1200 return AVERROR(ENOMEM);
1201 decoded_frame = ist->decoded_frame;
1203 ret = avcodec_decode_video2(ist->dec_ctx,
1204 decoded_frame, got_output, pkt);
1205 if (!*got_output || ret < 0)
1208 ist->frames_decoded++;
1210 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1211 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1215 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1217 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1218 decoded_frame->pkt_dts);
1221 if (ist->st->sample_aspect_ratio.num)
1222 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1224 resample_changed = ist->resample_width != decoded_frame->width ||
1225 ist->resample_height != decoded_frame->height ||
1226 ist->resample_pix_fmt != decoded_frame->format;
1227 if (resample_changed) {
1228 av_log(NULL, AV_LOG_INFO,
1229 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1230 ist->file_index, ist->st->index,
1231 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1232 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1234 ret = poll_filters();
1235 if (ret < 0 && ret != AVERROR_EOF) {
1237 av_strerror(ret, errbuf, sizeof(errbuf));
1239 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1242 ist->resample_width = decoded_frame->width;
1243 ist->resample_height = decoded_frame->height;
1244 ist->resample_pix_fmt = decoded_frame->format;
1246 for (i = 0; i < nb_filtergraphs; i++)
1247 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1248 configure_filtergraph(filtergraphs[i]) < 0) {
1249 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1254 for (i = 0; i < ist->nb_filters; i++) {
1255 if (i < ist->nb_filters - 1) {
1256 f = ist->filter_frame;
1257 err = av_frame_ref(f, decoded_frame);
1263 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1269 av_frame_unref(ist->filter_frame);
1270 av_frame_unref(decoded_frame);
1271 return err < 0 ? err : ret;
1274 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1276 AVSubtitle subtitle;
1277 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1278 &subtitle, got_output, pkt);
1284 ist->frames_decoded++;
1286 for (i = 0; i < nb_output_streams; i++) {
1287 OutputStream *ost = output_streams[i];
1289 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1292 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1295 avsubtitle_free(&subtitle);
1299 static int send_filter_eof(InputStream *ist)
1302 for (i = 0; i < ist->nb_filters; i++) {
1303 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1310 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1311 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1317 if (ist->next_dts == AV_NOPTS_VALUE)
1318 ist->next_dts = ist->last_dts;
1322 av_init_packet(&avpkt);
1330 if (pkt->dts != AV_NOPTS_VALUE)
1331 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1333 // while we have more to decode or while the decoder did output something on EOF
1334 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1338 ist->last_dts = ist->next_dts;
1340 switch (ist->dec_ctx->codec_type) {
1341 case AVMEDIA_TYPE_AUDIO:
1342 ret = decode_audio (ist, &avpkt, &got_output);
1344 case AVMEDIA_TYPE_VIDEO:
1345 ret = decode_video (ist, &avpkt, &got_output);
1347 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1348 else if (ist->st->avg_frame_rate.num)
1349 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1351 else if (ist->dec_ctx->framerate.num != 0) {
1352 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1353 ist->dec_ctx->ticks_per_frame;
1354 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1357 case AVMEDIA_TYPE_SUBTITLE:
1358 ret = transcode_subtitles(ist, &avpkt, &got_output);
1365 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1366 ist->file_index, ist->st->index);
1372 // touch data and size only if not EOF
1382 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1383 /* except when looping we need to flush but not to send an EOF */
1384 if (!pkt && ist->decoding_needed && !no_eof) {
1385 int ret = send_filter_eof(ist);
1387 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1392 /* handle stream copy */
1393 if (!ist->decoding_needed) {
1394 ist->last_dts = ist->next_dts;
1395 switch (ist->dec_ctx->codec_type) {
1396 case AVMEDIA_TYPE_AUDIO:
1397 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1398 ist->dec_ctx->sample_rate;
1400 case AVMEDIA_TYPE_VIDEO:
1401 if (ist->dec_ctx->framerate.num != 0) {
1402 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1403 ist->next_dts += ((int64_t)AV_TIME_BASE *
1404 ist->dec_ctx->framerate.den * ticks) /
1405 ist->dec_ctx->framerate.num;
1410 for (i = 0; pkt && i < nb_output_streams; i++) {
1411 OutputStream *ost = output_streams[i];
1413 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1416 do_streamcopy(ist, ost, pkt);
1422 static void print_sdp(void)
1426 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1430 for (i = 0; i < nb_output_files; i++)
1431 avc[i] = output_files[i]->ctx;
1433 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1434 printf("SDP:\n%s\n", sdp);
1439 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1442 for (i = 0; hwaccels[i].name; i++)
1443 if (hwaccels[i].pix_fmt == pix_fmt)
1444 return &hwaccels[i];
1448 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1450 InputStream *ist = s->opaque;
1451 const enum AVPixelFormat *p;
1454 for (p = pix_fmts; *p != -1; p++) {
1455 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1456 const HWAccel *hwaccel;
1458 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1461 hwaccel = get_hwaccel(*p);
1463 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1464 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1467 ret = hwaccel->init(s);
1469 if (ist->hwaccel_id == hwaccel->id) {
1470 av_log(NULL, AV_LOG_FATAL,
1471 "%s hwaccel requested for input stream #%d:%d, "
1472 "but cannot be initialized.\n", hwaccel->name,
1473 ist->file_index, ist->st->index);
1474 return AV_PIX_FMT_NONE;
1478 ist->active_hwaccel_id = hwaccel->id;
1479 ist->hwaccel_pix_fmt = *p;
1486 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1488 InputStream *ist = s->opaque;
1490 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1491 return ist->hwaccel_get_buffer(s, frame, flags);
1493 return avcodec_default_get_buffer2(s, frame, flags);
1496 static int init_input_stream(int ist_index, char *error, int error_len)
1499 InputStream *ist = input_streams[ist_index];
1500 if (ist->decoding_needed) {
1501 AVCodec *codec = ist->dec;
1503 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1504 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1505 return AVERROR(EINVAL);
1508 ist->dec_ctx->opaque = ist;
1509 ist->dec_ctx->get_format = get_format;
1510 ist->dec_ctx->get_buffer2 = get_buffer;
1511 ist->dec_ctx->thread_safe_callbacks = 1;
1513 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1515 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1516 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1517 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1519 if (ret == AVERROR_EXPERIMENTAL)
1520 abort_codec_experimental(codec, 0);
1522 av_strerror(ret, errbuf, sizeof(errbuf));
1524 snprintf(error, error_len,
1525 "Error while opening decoder for input stream "
1527 ist->file_index, ist->st->index, errbuf);
1530 assert_avoptions(ist->decoder_opts);
1533 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;
1534 ist->next_dts = AV_NOPTS_VALUE;
1535 init_pts_correction(&ist->pts_ctx);
1540 static InputStream *get_input_stream(OutputStream *ost)
1542 if (ost->source_index >= 0)
1543 return input_streams[ost->source_index];
1546 FilterGraph *fg = ost->filter->graph;
1549 for (i = 0; i < fg->nb_inputs; i++)
1550 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1551 return fg->inputs[i]->ist;
1557 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1561 if (ost->encoding_needed) {
1562 AVCodec *codec = ost->enc;
1563 AVCodecContext *dec = NULL;
1566 if ((ist = get_input_stream(ost)))
1568 if (dec && dec->subtitle_header) {
1569 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1570 if (!ost->enc_ctx->subtitle_header)
1571 return AVERROR(ENOMEM);
1572 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1573 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1575 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1576 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1578 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx) {
1579 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
1580 if (!ost->enc_ctx->hw_frames_ctx)
1581 return AVERROR(ENOMEM);
1584 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1585 if (ret == AVERROR_EXPERIMENTAL)
1586 abort_codec_experimental(codec, 1);
1587 snprintf(error, error_len,
1588 "Error while opening encoder for output stream #%d:%d - "
1589 "maybe incorrect parameters such as bit_rate, rate, width or height",
1590 ost->file_index, ost->index);
1593 assert_avoptions(ost->encoder_opts);
1594 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1595 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1596 "It takes bits/s as argument, not kbits/s\n");
1598 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
1600 av_log(NULL, AV_LOG_FATAL,
1601 "Error initializing the output stream codec context.\n");
1605 * FIXME: this is only so that the bitstream filters and parsers (that still
1606 * work with a codec context) get the parameter values.
1607 * This should go away with the new BSF/parser API.
1609 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1613 if (ost->enc_ctx->nb_coded_side_data) {
1616 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
1617 sizeof(*ost->st->side_data));
1618 if (!ost->st->side_data)
1619 return AVERROR(ENOMEM);
1621 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
1622 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
1623 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1625 sd_dst->data = av_malloc(sd_src->size);
1627 return AVERROR(ENOMEM);
1628 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1629 sd_dst->size = sd_src->size;
1630 sd_dst->type = sd_src->type;
1631 ost->st->nb_side_data++;
1635 ost->st->time_base = ost->enc_ctx->time_base;
1637 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1642 * FIXME: this is only so that the bitstream filters and parsers (that still
1643 * work with a codec context) get the parameter values.
1644 * This should go away with the new BSF/parser API.
1646 ret = avcodec_parameters_to_context(ost->st->codec, ost->st->codecpar);
1654 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1655 AVCodecContext *avctx)
1661 for (p = kf; *p; p++)
1664 ost->forced_kf_count = n;
1665 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1666 if (!ost->forced_kf_pts) {
1667 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1672 for (i = 0; i < n; i++) {
1673 char *next = strchr(p, ',');
1678 t = parse_time_or_die("force_key_frames", p, 1);
1679 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1685 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1687 AVDictionaryEntry *e;
1689 uint8_t *encoder_string;
1690 int encoder_string_len;
1691 int format_flags = 0;
1693 e = av_dict_get(of->opts, "fflags", NULL, 0);
1695 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1698 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1701 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1702 encoder_string = av_mallocz(encoder_string_len);
1703 if (!encoder_string)
1706 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1707 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1708 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1709 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1710 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1713 static int transcode_init(void)
1715 int ret = 0, i, j, k;
1716 AVFormatContext *oc;
1722 /* init framerate emulation */
1723 for (i = 0; i < nb_input_files; i++) {
1724 InputFile *ifile = input_files[i];
1725 if (ifile->rate_emu)
1726 for (j = 0; j < ifile->nb_streams; j++)
1727 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1730 /* for each output stream, we compute the right encoding parameters */
1731 for (i = 0; i < nb_output_streams; i++) {
1732 ost = output_streams[i];
1733 oc = output_files[ost->file_index]->ctx;
1734 ist = get_input_stream(ost);
1736 if (ost->attachment_filename)
1740 ost->st->disposition = ist->st->disposition;
1743 if (ost->stream_copy) {
1744 AVCodecParameters *par_dst = ost->st->codecpar;
1745 AVCodecParameters *par_src = ist->st->codecpar;
1747 uint64_t extra_size;
1749 av_assert0(ist && !ost->filter);
1751 extra_size = (uint64_t)par_src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1753 if (extra_size > INT_MAX) {
1754 return AVERROR(EINVAL);
1757 /* if stream_copy is selected, no need to decode or encode */
1758 par_dst->codec_id = par_src->codec_id;
1759 par_dst->codec_type = par_src->codec_type;
1761 if (!par_dst->codec_tag) {
1762 if (!oc->oformat->codec_tag ||
1763 av_codec_get_id (oc->oformat->codec_tag, par_src->codec_tag) == par_dst->codec_id ||
1764 av_codec_get_tag(oc->oformat->codec_tag, par_src->codec_id) <= 0)
1765 par_dst->codec_tag = par_src->codec_tag;
1768 par_dst->bit_rate = par_src->bit_rate;
1769 par_dst->field_order = par_src->field_order;
1770 par_dst->chroma_location = par_src->chroma_location;
1771 par_dst->extradata = av_mallocz(extra_size);
1772 if (!par_dst->extradata) {
1773 return AVERROR(ENOMEM);
1775 memcpy(par_dst->extradata, par_src->extradata, par_src->extradata_size);
1776 par_dst->extradata_size = par_src->extradata_size;
1778 ost->st->time_base = ist->st->time_base;
1780 if (ist->st->nb_side_data) {
1781 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1782 sizeof(*ist->st->side_data));
1783 if (!ost->st->side_data)
1784 return AVERROR(ENOMEM);
1786 for (j = 0; j < ist->st->nb_side_data; j++) {
1787 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1788 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1790 sd_dst->data = av_malloc(sd_src->size);
1792 return AVERROR(ENOMEM);
1793 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1794 sd_dst->size = sd_src->size;
1795 sd_dst->type = sd_src->type;
1796 ost->st->nb_side_data++;
1800 ost->parser = av_parser_init(par_dst->codec_id);
1802 switch (par_dst->codec_type) {
1803 case AVMEDIA_TYPE_AUDIO:
1804 if (audio_volume != 256) {
1805 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1808 par_dst->channel_layout = par_src->channel_layout;
1809 par_dst->sample_rate = par_src->sample_rate;
1810 par_dst->channels = par_src->channels;
1811 par_dst->block_align = par_src->block_align;
1813 case AVMEDIA_TYPE_VIDEO:
1814 par_dst->format = par_src->format;
1815 par_dst->width = par_src->width;
1816 par_dst->height = par_src->height;
1817 if (ost->frame_aspect_ratio)
1818 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1819 else if (ist->st->sample_aspect_ratio.num)
1820 sar = ist->st->sample_aspect_ratio;
1822 sar = par_src->sample_aspect_ratio;
1823 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1825 case AVMEDIA_TYPE_SUBTITLE:
1826 par_dst->width = par_src->width;
1827 par_dst->height = par_src->height;
1829 case AVMEDIA_TYPE_DATA:
1830 case AVMEDIA_TYPE_ATTACHMENT:
1836 AVCodecContext *enc_ctx = ost->enc_ctx;
1837 AVCodecContext *dec_ctx = NULL;
1840 /* should only happen when a default codec is not present. */
1841 snprintf(error, sizeof(error), "Automatic encoder selection "
1842 "failed for output stream #%d:%d. Default encoder for "
1843 "format %s is probably disabled. Please choose an "
1844 "encoder manually.\n", ost->file_index, ost->index,
1846 ret = AVERROR(EINVAL);
1850 set_encoder_id(output_files[ost->file_index], ost);
1853 dec_ctx = ist->dec_ctx;
1855 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1856 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1860 * We want CFR output if and only if one of those is true:
1861 * 1) user specified output framerate with -r
1862 * 2) user specified -vsync cfr
1863 * 3) output format is CFR and the user didn't force vsync to
1864 * something else than CFR
1866 * in such a case, set ost->frame_rate
1868 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1869 !ost->frame_rate.num && ist &&
1870 (video_sync_method == VSYNC_CFR ||
1871 (video_sync_method == VSYNC_AUTO &&
1872 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1873 if (ist->framerate.num)
1874 ost->frame_rate = ist->framerate;
1875 else if (ist->st->avg_frame_rate.num)
1876 ost->frame_rate = ist->st->avg_frame_rate;
1878 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1879 "for the output stream #%d:%d, but no information "
1880 "about the input framerate is available. Falling "
1881 "back to a default value of 25fps. Use the -r option "
1882 "if you want a different framerate.\n",
1883 ost->file_index, ost->index);
1884 ost->frame_rate = (AVRational){ 25, 1 };
1887 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1888 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1889 ost->frame_rate = ost->enc->supported_framerates[idx];
1894 if (qsv_transcode_init(ost))
1899 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1900 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1902 fg = init_simple_filtergraph(ist, ost);
1903 if (configure_filtergraph(fg)) {
1904 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1909 switch (enc_ctx->codec_type) {
1910 case AVMEDIA_TYPE_AUDIO:
1911 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1912 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1913 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1914 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1915 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1917 case AVMEDIA_TYPE_VIDEO:
1918 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1920 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1921 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1922 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1923 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1924 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1925 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1926 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1928 ost->st->avg_frame_rate = ost->frame_rate;
1931 (enc_ctx->width != dec_ctx->width ||
1932 enc_ctx->height != dec_ctx->height ||
1933 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1934 enc_ctx->bits_per_raw_sample = 0;
1937 if (ost->forced_keyframes)
1938 parse_forced_key_frames(ost->forced_keyframes, ost,
1941 case AVMEDIA_TYPE_SUBTITLE:
1942 enc_ctx->time_base = (AVRational){1, 1000};
1951 /* init input streams */
1952 for (i = 0; i < nb_input_streams; i++)
1953 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1956 /* open each encoder */
1957 for (i = 0; i < nb_output_streams; i++) {
1958 ret = init_output_stream(output_streams[i], error, sizeof(error));
1964 /* discard unused programs */
1965 for (i = 0; i < nb_input_files; i++) {
1966 InputFile *ifile = input_files[i];
1967 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1968 AVProgram *p = ifile->ctx->programs[j];
1969 int discard = AVDISCARD_ALL;
1971 for (k = 0; k < p->nb_stream_indexes; k++)
1972 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1973 discard = AVDISCARD_DEFAULT;
1976 p->discard = discard;
1980 /* open files and write file headers */
1981 for (i = 0; i < nb_output_files; i++) {
1982 oc = output_files[i]->ctx;
1983 oc->interrupt_callback = int_cb;
1984 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1986 av_strerror(ret, errbuf, sizeof(errbuf));
1987 snprintf(error, sizeof(error),
1988 "Could not write header for output file #%d "
1989 "(incorrect codec parameters ?): %s",
1991 ret = AVERROR(EINVAL);
1994 assert_avoptions(output_files[i]->opts);
1995 if (strcmp(oc->oformat->name, "rtp")) {
2001 /* dump the file output parameters - cannot be done before in case
2003 for (i = 0; i < nb_output_files; i++) {
2004 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2007 /* dump the stream mapping */
2008 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2009 for (i = 0; i < nb_input_streams; i++) {
2010 ist = input_streams[i];
2012 for (j = 0; j < ist->nb_filters; j++) {
2013 if (ist->filters[j]->graph->graph_desc) {
2014 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2015 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2016 ist->filters[j]->name);
2017 if (nb_filtergraphs > 1)
2018 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2019 av_log(NULL, AV_LOG_INFO, "\n");
2024 for (i = 0; i < nb_output_streams; i++) {
2025 ost = output_streams[i];
2027 if (ost->attachment_filename) {
2028 /* an attached file */
2029 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2030 ost->attachment_filename, ost->file_index, ost->index);
2034 if (ost->filter && ost->filter->graph->graph_desc) {
2035 /* output from a complex graph */
2036 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2037 if (nb_filtergraphs > 1)
2038 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2040 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2041 ost->index, ost->enc ? ost->enc->name : "?");
2045 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2046 input_streams[ost->source_index]->file_index,
2047 input_streams[ost->source_index]->st->index,
2050 if (ost->sync_ist != input_streams[ost->source_index])
2051 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2052 ost->sync_ist->file_index,
2053 ost->sync_ist->st->index);
2054 if (ost->stream_copy)
2055 av_log(NULL, AV_LOG_INFO, " (copy)");
2057 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2058 const AVCodec *out_codec = ost->enc;
2059 const char *decoder_name = "?";
2060 const char *in_codec_name = "?";
2061 const char *encoder_name = "?";
2062 const char *out_codec_name = "?";
2063 const AVCodecDescriptor *desc;
2066 decoder_name = in_codec->name;
2067 desc = avcodec_descriptor_get(in_codec->id);
2069 in_codec_name = desc->name;
2070 if (!strcmp(decoder_name, in_codec_name))
2071 decoder_name = "native";
2075 encoder_name = out_codec->name;
2076 desc = avcodec_descriptor_get(out_codec->id);
2078 out_codec_name = desc->name;
2079 if (!strcmp(encoder_name, out_codec_name))
2080 encoder_name = "native";
2083 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2084 in_codec_name, decoder_name,
2085 out_codec_name, encoder_name);
2087 av_log(NULL, AV_LOG_INFO, "\n");
2091 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2102 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2103 static int need_output(void)
2107 for (i = 0; i < nb_output_streams; i++) {
2108 OutputStream *ost = output_streams[i];
2109 OutputFile *of = output_files[ost->file_index];
2110 AVFormatContext *os = output_files[ost->file_index]->ctx;
2112 if (ost->finished ||
2113 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2115 if (ost->frame_number >= ost->max_frames) {
2117 for (j = 0; j < of->ctx->nb_streams; j++)
2118 output_streams[of->ost_index + j]->finished = 1;
2128 static InputFile *select_input_file(void)
2130 InputFile *ifile = NULL;
2131 int64_t ipts_min = INT64_MAX;
2134 for (i = 0; i < nb_input_streams; i++) {
2135 InputStream *ist = input_streams[i];
2136 int64_t ipts = ist->last_dts;
2138 if (ist->discard || input_files[ist->file_index]->eagain)
2140 if (!input_files[ist->file_index]->eof_reached) {
2141 if (ipts < ipts_min) {
2143 ifile = input_files[ist->file_index];
2152 static void *input_thread(void *arg)
2157 while (!transcoding_finished && ret >= 0) {
2159 ret = av_read_frame(f->ctx, &pkt);
2161 if (ret == AVERROR(EAGAIN)) {
2168 pthread_mutex_lock(&f->fifo_lock);
2169 while (!av_fifo_space(f->fifo))
2170 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2172 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2174 pthread_mutex_unlock(&f->fifo_lock);
2181 static void free_input_threads(void)
2185 if (nb_input_files == 1)
2188 transcoding_finished = 1;
2190 for (i = 0; i < nb_input_files; i++) {
2191 InputFile *f = input_files[i];
2194 if (!f->fifo || f->joined)
2197 pthread_mutex_lock(&f->fifo_lock);
2198 while (av_fifo_size(f->fifo)) {
2199 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2200 av_packet_unref(&pkt);
2202 pthread_cond_signal(&f->fifo_cond);
2203 pthread_mutex_unlock(&f->fifo_lock);
2205 pthread_join(f->thread, NULL);
2208 while (av_fifo_size(f->fifo)) {
2209 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2210 av_packet_unref(&pkt);
2212 av_fifo_free(f->fifo);
2216 static int init_input_threads(void)
2220 if (nb_input_files == 1)
2223 for (i = 0; i < nb_input_files; i++) {
2224 InputFile *f = input_files[i];
2226 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2227 return AVERROR(ENOMEM);
2229 pthread_mutex_init(&f->fifo_lock, NULL);
2230 pthread_cond_init (&f->fifo_cond, NULL);
2232 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2233 return AVERROR(ret);
2238 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2242 pthread_mutex_lock(&f->fifo_lock);
2244 if (av_fifo_size(f->fifo)) {
2245 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2246 pthread_cond_signal(&f->fifo_cond);
2251 ret = AVERROR(EAGAIN);
2254 pthread_mutex_unlock(&f->fifo_lock);
2260 static int get_input_packet(InputFile *f, AVPacket *pkt)
2264 for (i = 0; i < f->nb_streams; i++) {
2265 InputStream *ist = input_streams[f->ist_index + i];
2266 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2267 int64_t now = av_gettime_relative() - ist->start;
2269 return AVERROR(EAGAIN);
2274 if (nb_input_files > 1)
2275 return get_input_packet_mt(f, pkt);
2277 return av_read_frame(f->ctx, pkt);
2280 static int got_eagain(void)
2283 for (i = 0; i < nb_input_files; i++)
2284 if (input_files[i]->eagain)
2289 static void reset_eagain(void)
2292 for (i = 0; i < nb_input_files; i++)
2293 input_files[i]->eagain = 0;
2296 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2297 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2298 AVRational time_base)
2304 return tmp_time_base;
2307 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2310 return tmp_time_base;
2316 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2319 AVCodecContext *avctx;
2320 int i, ret, has_audio = 0;
2321 int64_t duration = 0;
2323 ret = av_seek_frame(is, -1, is->start_time, 0);
2327 for (i = 0; i < ifile->nb_streams; i++) {
2328 ist = input_streams[ifile->ist_index + i];
2329 avctx = ist->dec_ctx;
2332 if (ist->decoding_needed) {
2333 process_input_packet(ist, NULL, 1);
2334 avcodec_flush_buffers(avctx);
2337 /* duration is the length of the last frame in a stream
2338 * when audio stream is present we don't care about
2339 * last video frame length because it's not defined exactly */
2340 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2344 for (i = 0; i < ifile->nb_streams; i++) {
2345 ist = input_streams[ifile->ist_index + i];
2346 avctx = ist->dec_ctx;
2349 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2350 AVRational sample_rate = {1, avctx->sample_rate};
2352 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2356 if (ist->framerate.num) {
2357 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2358 } else if (ist->st->avg_frame_rate.num) {
2359 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2360 } else duration = 1;
2362 if (!ifile->duration)
2363 ifile->time_base = ist->st->time_base;
2364 /* the total duration of the stream, max_pts - min_pts is
2365 * the duration of the stream without the last frame */
2366 duration += ist->max_pts - ist->min_pts;
2367 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2371 if (ifile->loop > 0)
2378 * Read one packet from an input file and send it for
2379 * - decoding -> lavfi (audio/video)
2380 * - decoding -> encoding -> muxing (subtitles)
2381 * - muxing (streamcopy)
2384 * - 0 -- one packet was read and processed
2385 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2386 * this function should be called again
2387 * - AVERROR_EOF -- this function should not be called again
2389 static int process_input(void)
2392 AVFormatContext *is;
2398 /* select the stream that we must read now */
2399 ifile = select_input_file();
2400 /* if none, if is finished */
2405 return AVERROR(EAGAIN);
2407 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2412 ret = get_input_packet(ifile, &pkt);
2414 if (ret == AVERROR(EAGAIN)) {
2418 if (ret < 0 && ifile->loop) {
2419 if ((ret = seek_to_start(ifile, is)) < 0)
2421 ret = get_input_packet(ifile, &pkt);
2424 if (ret != AVERROR_EOF) {
2425 print_error(is->filename, ret);
2429 ifile->eof_reached = 1;
2431 for (i = 0; i < ifile->nb_streams; i++) {
2432 ist = input_streams[ifile->ist_index + i];
2433 if (ist->decoding_needed)
2434 process_input_packet(ist, NULL, 0);
2436 /* mark all outputs that don't go through lavfi as finished */
2437 for (j = 0; j < nb_output_streams; j++) {
2438 OutputStream *ost = output_streams[j];
2440 if (ost->source_index == ifile->ist_index + i &&
2441 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2442 finish_output_stream(ost);
2446 return AVERROR(EAGAIN);
2452 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2453 is->streams[pkt.stream_index]);
2455 /* the following test is needed in case new streams appear
2456 dynamically in stream : we ignore them */
2457 if (pkt.stream_index >= ifile->nb_streams)
2458 goto discard_packet;
2460 ist = input_streams[ifile->ist_index + pkt.stream_index];
2462 ist->data_size += pkt.size;
2466 goto discard_packet;
2468 /* add the stream-global side data to the first packet */
2469 if (ist->nb_packets == 1)
2470 for (i = 0; i < ist->st->nb_side_data; i++) {
2471 AVPacketSideData *src_sd = &ist->st->side_data[i];
2474 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2476 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2479 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2483 memcpy(dst_data, src_sd->data, src_sd->size);
2486 if (pkt.dts != AV_NOPTS_VALUE)
2487 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2488 if (pkt.pts != AV_NOPTS_VALUE)
2489 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2491 if (pkt.pts != AV_NOPTS_VALUE)
2492 pkt.pts *= ist->ts_scale;
2493 if (pkt.dts != AV_NOPTS_VALUE)
2494 pkt.dts *= ist->ts_scale;
2496 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2497 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2498 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2499 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2500 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2501 int64_t delta = pkt_dts - ist->next_dts;
2503 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2504 ifile->ts_offset -= delta;
2505 av_log(NULL, AV_LOG_DEBUG,
2506 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2507 delta, ifile->ts_offset);
2508 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2509 if (pkt.pts != AV_NOPTS_VALUE)
2510 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2513 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2514 if (pkt.pts != AV_NOPTS_VALUE) {
2515 pkt.pts += duration;
2516 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2517 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2520 if (pkt.dts != AV_NOPTS_VALUE)
2521 pkt.dts += duration;
2523 process_input_packet(ist, &pkt, 0);
2526 av_packet_unref(&pkt);
2532 * The following code is the main loop of the file converter
2534 static int transcode(void)
2536 int ret, i, need_input = 1;
2537 AVFormatContext *os;
2540 int64_t timer_start;
2542 ret = transcode_init();
2546 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2549 timer_start = av_gettime_relative();
2552 if ((ret = init_input_threads()) < 0)
2556 while (!received_sigterm) {
2557 /* check if there's any stream where output is still needed */
2558 if (!need_output()) {
2559 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2563 /* read and process one input packet if needed */
2565 ret = process_input();
2566 if (ret == AVERROR_EOF)
2570 ret = poll_filters();
2571 if (ret < 0 && ret != AVERROR_EOF) {
2573 av_strerror(ret, errbuf, sizeof(errbuf));
2575 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2579 /* dump report by using the output first video and audio streams */
2580 print_report(0, timer_start);
2583 free_input_threads();
2586 /* at the end of stream, we must flush the decoder buffers */
2587 for (i = 0; i < nb_input_streams; i++) {
2588 ist = input_streams[i];
2589 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2590 process_input_packet(ist, NULL, 0);
2598 /* write the trailer if needed and close file */
2599 for (i = 0; i < nb_output_files; i++) {
2600 os = output_files[i]->ctx;
2601 av_write_trailer(os);
2604 /* dump report by using the first video and audio streams */
2605 print_report(1, timer_start);
2607 /* close each encoder */
2608 for (i = 0; i < nb_output_streams; i++) {
2609 ost = output_streams[i];
2610 if (ost->encoding_needed) {
2611 av_freep(&ost->enc_ctx->stats_in);
2615 /* close each decoder */
2616 for (i = 0; i < nb_input_streams; i++) {
2617 ist = input_streams[i];
2618 if (ist->decoding_needed) {
2619 avcodec_close(ist->dec_ctx);
2620 if (ist->hwaccel_uninit)
2621 ist->hwaccel_uninit(ist->dec_ctx);
2630 free_input_threads();
2633 if (output_streams) {
2634 for (i = 0; i < nb_output_streams; i++) {
2635 ost = output_streams[i];
2638 fclose(ost->logfile);
2639 ost->logfile = NULL;
2641 av_free(ost->forced_kf_pts);
2642 av_dict_free(&ost->encoder_opts);
2643 av_dict_free(&ost->resample_opts);
2650 static int64_t getutime(void)
2653 struct rusage rusage;
2655 getrusage(RUSAGE_SELF, &rusage);
2656 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2657 #elif HAVE_GETPROCESSTIMES
2659 FILETIME c, e, k, u;
2660 proc = GetCurrentProcess();
2661 GetProcessTimes(proc, &c, &e, &k, &u);
2662 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2664 return av_gettime_relative();
2668 static int64_t getmaxrss(void)
2670 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2671 struct rusage rusage;
2672 getrusage(RUSAGE_SELF, &rusage);
2673 return (int64_t)rusage.ru_maxrss * 1024;
2674 #elif HAVE_GETPROCESSMEMORYINFO
2676 PROCESS_MEMORY_COUNTERS memcounters;
2677 proc = GetCurrentProcess();
2678 memcounters.cb = sizeof(memcounters);
2679 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2680 return memcounters.PeakPagefileUsage;
2686 int main(int argc, char **argv)
2691 register_exit(avconv_cleanup);
2693 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2694 parse_loglevel(argc, argv, options);
2696 avcodec_register_all();
2698 avdevice_register_all();
2700 avfilter_register_all();
2702 avformat_network_init();
2706 /* parse options and open all input/output files */
2707 ret = avconv_parse_options(argc, argv);
2711 if (nb_output_files <= 0 && nb_input_files == 0) {
2713 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2717 /* file converter / grab */
2718 if (nb_output_files <= 0) {
2719 fprintf(stderr, "At least one output file must be specified\n");
2724 if (transcode() < 0)
2726 ti = getutime() - ti;
2728 int maxrss = getmaxrss() / 1024;
2729 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);