3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/internal.h"
42 #include "libavutil/intreadwrite.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/mathematics.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/imgutils.h"
49 #include "libavutil/time.h"
50 #include "libavformat/os_support.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/buffersrc.h"
54 # include "libavfilter/buffersink.h"
56 #if HAVE_SYS_RESOURCE_H
58 #include <sys/types.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
63 #if HAVE_GETPROCESSMEMORYINFO
69 #include <sys/select.h>
81 #include "libavutil/avassert.h"
83 const char program_name[] = "avconv";
84 const int program_birth_year = 2000;
86 static FILE *vstats_file;
88 static int nb_frames_drop = 0;
93 /* signal to input threads that they should exit; set by the main thread */
94 static int transcoding_finished;
97 InputStream **input_streams = NULL;
98 int nb_input_streams = 0;
99 InputFile **input_files = NULL;
100 int nb_input_files = 0;
102 OutputStream **output_streams = NULL;
103 int nb_output_streams = 0;
104 OutputFile **output_files = NULL;
105 int nb_output_files = 0;
107 FilterGraph **filtergraphs;
110 static void term_exit(void)
112 av_log(NULL, AV_LOG_QUIET, "");
115 static volatile int received_sigterm = 0;
116 static volatile int received_nb_signals = 0;
119 sigterm_handler(int sig)
121 received_sigterm = sig;
122 received_nb_signals++;
126 static void term_init(void)
128 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
129 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
131 signal(SIGXCPU, sigterm_handler);
135 static int decode_interrupt_cb(void *ctx)
137 return received_nb_signals > 1;
140 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
142 static void avconv_cleanup(int ret)
146 for (i = 0; i < nb_filtergraphs; i++) {
147 FilterGraph *fg = filtergraphs[i];
148 avfilter_graph_free(&fg->graph);
149 for (j = 0; j < fg->nb_inputs; j++) {
150 av_freep(&fg->inputs[j]->name);
151 av_freep(&fg->inputs[j]);
153 av_freep(&fg->inputs);
154 for (j = 0; j < fg->nb_outputs; j++) {
155 av_freep(&fg->outputs[j]->name);
156 av_freep(&fg->outputs[j]);
158 av_freep(&fg->outputs);
159 av_freep(&fg->graph_desc);
161 av_freep(&filtergraphs[i]);
163 av_freep(&filtergraphs);
166 for (i = 0; i < nb_output_files; i++) {
167 OutputFile *of = output_files[i];
168 AVFormatContext *s = of->ctx;
169 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avformat_free_context(s);
172 av_dict_free(&of->opts);
174 av_freep(&output_files[i]);
176 for (i = 0; i < nb_output_streams; i++) {
177 OutputStream *ost = output_streams[i];
178 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
180 AVBitStreamFilterContext *next = bsfc->next;
181 av_bitstream_filter_close(bsfc);
184 ost->bitstream_filters = NULL;
185 av_frame_free(&ost->filtered_frame);
187 av_parser_close(ost->parser);
189 av_freep(&ost->forced_keyframes);
190 av_freep(&ost->avfilter);
191 av_freep(&ost->logfile_prefix);
193 avcodec_free_context(&ost->enc_ctx);
195 av_freep(&output_streams[i]);
197 for (i = 0; i < nb_input_files; i++) {
198 avformat_close_input(&input_files[i]->ctx);
199 av_freep(&input_files[i]);
201 for (i = 0; i < nb_input_streams; i++) {
202 InputStream *ist = input_streams[i];
204 av_frame_free(&ist->decoded_frame);
205 av_frame_free(&ist->filter_frame);
206 av_dict_free(&ist->decoder_opts);
207 av_freep(&ist->filters);
208 av_freep(&ist->hwaccel_device);
210 avcodec_free_context(&ist->dec_ctx);
212 av_freep(&input_streams[i]);
217 av_free(vstats_filename);
219 av_freep(&input_streams);
220 av_freep(&input_files);
221 av_freep(&output_streams);
222 av_freep(&output_files);
226 avformat_network_deinit();
228 if (received_sigterm) {
229 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
230 (int) received_sigterm);
235 void assert_avoptions(AVDictionary *m)
237 AVDictionaryEntry *t;
238 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
239 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
244 static void abort_codec_experimental(AVCodec *c, int encoder)
246 const char *codec_string = encoder ? "encoder" : "decoder";
248 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
249 "results.\nAdd '-strict experimental' if you want to use it.\n",
250 codec_string, c->name);
251 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
252 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
253 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
254 codec_string, codec->name);
258 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
260 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
261 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
265 * Audio encoders may split the packets -- #frames in != #packets out.
266 * But there is no reordering, so we can limit the number of output packets
267 * by simply dropping them here.
268 * Counting encoded video frames needs to be done separately because of
269 * reordering, see do_video_out()
271 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
272 if (ost->frame_number >= ost->max_frames) {
273 av_packet_unref(pkt);
278 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
279 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
281 ost->quality = sd ? *(int *)sd : -1;
283 if (ost->frame_rate.num) {
284 pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
290 AVPacket new_pkt = *pkt;
291 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
292 &new_pkt.data, &new_pkt.size,
293 pkt->data, pkt->size,
294 pkt->flags & AV_PKT_FLAG_KEY);
296 av_packet_unref(pkt);
297 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
298 av_buffer_default_free, NULL, 0);
302 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
303 bsfc->filter->name, pkt->stream_index,
304 avctx->codec ? avctx->codec->name : "copy");
314 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
315 ost->last_mux_dts != AV_NOPTS_VALUE &&
316 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
317 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
318 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
319 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
321 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
324 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
325 "in incorrect timestamps in the output file.\n",
326 ost->last_mux_dts + 1);
327 pkt->dts = ost->last_mux_dts + 1;
328 if (pkt->pts != AV_NOPTS_VALUE)
329 pkt->pts = FFMAX(pkt->pts, pkt->dts);
331 ost->last_mux_dts = pkt->dts;
333 ost->data_size += pkt->size;
334 ost->packets_written++;
336 pkt->stream_index = ost->index;
337 ret = av_interleaved_write_frame(s, pkt);
339 print_error("av_interleaved_write_frame()", ret);
344 static int check_recording_time(OutputStream *ost)
346 OutputFile *of = output_files[ost->file_index];
348 if (of->recording_time != INT64_MAX &&
349 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
350 AV_TIME_BASE_Q) >= 0) {
357 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
360 AVCodecContext *enc = ost->enc_ctx;
364 av_init_packet(&pkt);
368 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
369 frame->pts = ost->sync_opts;
370 ost->sync_opts = frame->pts + frame->nb_samples;
372 ost->samples_encoded += frame->nb_samples;
373 ost->frames_encoded++;
375 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
376 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
381 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
382 write_frame(s, &pkt, ost);
386 static void do_subtitle_out(AVFormatContext *s,
392 static uint8_t *subtitle_out = NULL;
393 int subtitle_out_max_size = 1024 * 1024;
394 int subtitle_out_size, nb, i;
398 if (pts == AV_NOPTS_VALUE) {
399 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
408 subtitle_out = av_malloc(subtitle_out_max_size);
411 /* Note: DVB subtitle need one packet to draw them and one other
412 packet to clear them */
413 /* XXX: signal it in the codec context ? */
414 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
419 for (i = 0; i < nb; i++) {
420 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
421 if (!check_recording_time(ost))
424 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
425 // start_display_time is required to be 0
426 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
427 sub->end_display_time -= sub->start_display_time;
428 sub->start_display_time = 0;
430 ost->frames_encoded++;
432 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
433 subtitle_out_max_size, sub);
434 if (subtitle_out_size < 0) {
435 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
439 av_init_packet(&pkt);
440 pkt.data = subtitle_out;
441 pkt.size = subtitle_out_size;
442 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
443 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
444 /* XXX: the pts correction is handled here. Maybe handling
445 it in the codec would be better */
447 pkt.pts += 90 * sub->start_display_time;
449 pkt.pts += 90 * sub->end_display_time;
451 write_frame(s, &pkt, ost);
455 static void do_video_out(AVFormatContext *s,
460 int ret, format_video_sync, got_packet;
462 AVCodecContext *enc = ost->enc_ctx;
466 format_video_sync = video_sync_method;
467 if (format_video_sync == VSYNC_AUTO)
468 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
469 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
470 if (format_video_sync != VSYNC_PASSTHROUGH &&
472 in_picture->pts != AV_NOPTS_VALUE &&
473 in_picture->pts < ost->sync_opts) {
475 av_log(NULL, AV_LOG_WARNING,
476 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
477 ost->frame_number, ost->st->index, in_picture->pts);
481 if (in_picture->pts == AV_NOPTS_VALUE)
482 in_picture->pts = ost->sync_opts;
483 ost->sync_opts = in_picture->pts;
486 if (!ost->frame_number)
487 ost->first_pts = in_picture->pts;
489 av_init_packet(&pkt);
493 if (ost->frame_number >= ost->max_frames)
496 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
497 ost->top_field_first >= 0)
498 in_picture->top_field_first = !!ost->top_field_first;
500 in_picture->quality = enc->global_quality;
501 in_picture->pict_type = 0;
502 if (ost->forced_kf_index < ost->forced_kf_count &&
503 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
504 in_picture->pict_type = AV_PICTURE_TYPE_I;
505 ost->forced_kf_index++;
508 ost->frames_encoded++;
510 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
512 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
517 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
518 write_frame(s, &pkt, ost);
519 *frame_size = pkt.size;
521 /* if two pass, output log */
522 if (ost->logfile && enc->stats_out) {
523 fprintf(ost->logfile, "%s", enc->stats_out);
529 * For video, number of frames in == number of packets out.
530 * But there may be reordering, so we can't throw away frames on encoder
531 * flush, we need to limit them here, before they go into encoder.
536 static double psnr(double d)
538 return -10.0 * log(d) / log(10.0);
541 static void do_video_stats(OutputStream *ost, int frame_size)
545 double ti1, bitrate, avg_bitrate;
547 /* this is executed just the first time do_video_stats is called */
549 vstats_file = fopen(vstats_filename, "w");
557 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
558 frame_number = ost->frame_number;
559 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
560 ost->quality / (float)FF_QP2LAMBDA);
562 #if FF_API_CODED_FRAME
563 FF_DISABLE_DEPRECATION_WARNINGS
564 if (enc->flags & AV_CODEC_FLAG_PSNR)
565 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
566 FF_ENABLE_DEPRECATION_WARNINGS
569 fprintf(vstats_file,"f_size= %6d ", frame_size);
570 /* compute pts value */
571 ti1 = ost->sync_opts * av_q2d(enc->time_base);
575 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
576 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
577 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
578 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
579 #if FF_API_CODED_FRAME
580 FF_DISABLE_DEPRECATION_WARNINGS
581 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
582 FF_ENABLE_DEPRECATION_WARNINGS
588 * Read one frame for lavfi output for ost and encode it.
590 static int poll_filter(OutputStream *ost)
592 OutputFile *of = output_files[ost->file_index];
593 AVFrame *filtered_frame = NULL;
596 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
597 return AVERROR(ENOMEM);
599 filtered_frame = ost->filtered_frame;
601 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
602 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
603 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
604 ost->enc_ctx->frame_size);
606 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
611 if (filtered_frame->pts != AV_NOPTS_VALUE) {
612 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
613 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
614 ost->filter->filter->inputs[0]->time_base,
615 ost->enc_ctx->time_base) -
616 av_rescale_q(start_time,
618 ost->enc_ctx->time_base);
621 switch (ost->filter->filter->inputs[0]->type) {
622 case AVMEDIA_TYPE_VIDEO:
623 if (!ost->frame_aspect_ratio)
624 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
626 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
627 if (vstats_filename && frame_size)
628 do_video_stats(ost, frame_size);
630 case AVMEDIA_TYPE_AUDIO:
631 do_audio_out(of->ctx, ost, filtered_frame);
634 // TODO support subtitle filters
638 av_frame_unref(filtered_frame);
643 static void finish_output_stream(OutputStream *ost)
645 OutputFile *of = output_files[ost->file_index];
651 for (i = 0; i < of->ctx->nb_streams; i++)
652 output_streams[of->ost_index + i]->finished = 1;
657 * Read as many frames from possible from lavfi and encode them.
659 * Always read from the active stream with the lowest timestamp. If no frames
660 * are available for it then return EAGAIN and wait for more input. This way we
661 * can use lavfi sources that generate unlimited amount of frames without memory
664 static int poll_filters(void)
668 while (ret >= 0 && !received_sigterm) {
669 OutputStream *ost = NULL;
670 int64_t min_pts = INT64_MAX;
672 /* choose output stream with the lowest timestamp */
673 for (i = 0; i < nb_output_streams; i++) {
674 int64_t pts = output_streams[i]->sync_opts;
676 if (!output_streams[i]->filter || output_streams[i]->finished)
679 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
683 ost = output_streams[i];
690 ret = poll_filter(ost);
692 if (ret == AVERROR_EOF) {
693 finish_output_stream(ost);
695 } else if (ret == AVERROR(EAGAIN))
702 static void print_final_stats(int64_t total_size)
704 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
705 uint64_t data_size = 0;
706 float percent = -1.0;
709 for (i = 0; i < nb_output_streams; i++) {
710 OutputStream *ost = output_streams[i];
711 switch (ost->enc_ctx->codec_type) {
712 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
713 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
714 default: other_size += ost->data_size; break;
716 extra_size += ost->enc_ctx->extradata_size;
717 data_size += ost->data_size;
720 if (data_size && total_size >= data_size)
721 percent = 100.0 * (total_size - data_size) / data_size;
723 av_log(NULL, AV_LOG_INFO, "\n");
724 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
728 extra_size / 1024.0);
730 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
732 av_log(NULL, AV_LOG_INFO, "unknown");
733 av_log(NULL, AV_LOG_INFO, "\n");
735 /* print verbose per-stream stats */
736 for (i = 0; i < nb_input_files; i++) {
737 InputFile *f = input_files[i];
738 uint64_t total_packets = 0, total_size = 0;
740 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
741 i, f->ctx->filename);
743 for (j = 0; j < f->nb_streams; j++) {
744 InputStream *ist = input_streams[f->ist_index + j];
745 enum AVMediaType type = ist->dec_ctx->codec_type;
747 total_size += ist->data_size;
748 total_packets += ist->nb_packets;
750 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
751 i, j, media_type_string(type));
752 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
753 ist->nb_packets, ist->data_size);
755 if (ist->decoding_needed) {
756 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
757 ist->frames_decoded);
758 if (type == AVMEDIA_TYPE_AUDIO)
759 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
760 av_log(NULL, AV_LOG_VERBOSE, "; ");
763 av_log(NULL, AV_LOG_VERBOSE, "\n");
766 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
767 total_packets, total_size);
770 for (i = 0; i < nb_output_files; i++) {
771 OutputFile *of = output_files[i];
772 uint64_t total_packets = 0, total_size = 0;
774 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
775 i, of->ctx->filename);
777 for (j = 0; j < of->ctx->nb_streams; j++) {
778 OutputStream *ost = output_streams[of->ost_index + j];
779 enum AVMediaType type = ost->enc_ctx->codec_type;
781 total_size += ost->data_size;
782 total_packets += ost->packets_written;
784 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
785 i, j, media_type_string(type));
786 if (ost->encoding_needed) {
787 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
788 ost->frames_encoded);
789 if (type == AVMEDIA_TYPE_AUDIO)
790 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
791 av_log(NULL, AV_LOG_VERBOSE, "; ");
794 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
795 ost->packets_written, ost->data_size);
797 av_log(NULL, AV_LOG_VERBOSE, "\n");
800 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
801 total_packets, total_size);
805 static void print_report(int is_last_report, int64_t timer_start)
812 int frame_number, vid, i;
813 double bitrate, ti1, pts;
814 static int64_t last_time = -1;
815 static int qp_histogram[52];
817 if (!print_stats && !is_last_report)
820 if (!is_last_report) {
822 /* display the report every 0.5 seconds */
823 cur_time = av_gettime_relative();
824 if (last_time == -1) {
825 last_time = cur_time;
828 if ((cur_time - last_time) < 500000)
830 last_time = cur_time;
834 oc = output_files[0]->ctx;
836 total_size = avio_size(oc->pb);
837 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
838 total_size = avio_tell(oc->pb);
839 if (total_size < 0) {
841 av_strerror(total_size, errbuf, sizeof(errbuf));
842 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
843 "avio_tell() failed: %s\n", errbuf);
850 for (i = 0; i < nb_output_streams; i++) {
852 ost = output_streams[i];
854 if (!ost->stream_copy)
855 q = ost->quality / (float) FF_QP2LAMBDA;
857 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
858 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
860 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
861 float t = (av_gettime_relative() - timer_start) / 1000000.0;
863 frame_number = ost->frame_number;
864 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
865 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
867 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
871 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
873 for (j = 0; j < 32; j++)
874 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
877 #if FF_API_CODED_FRAME
878 FF_DISABLE_DEPRECATION_WARNINGS
879 if (enc->flags & AV_CODEC_FLAG_PSNR) {
881 double error, error_sum = 0;
882 double scale, scale_sum = 0;
883 char type[3] = { 'Y','U','V' };
884 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
885 for (j = 0; j < 3; j++) {
886 if (is_last_report) {
887 error = enc->error[j];
888 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
890 error = enc->coded_frame->error[j];
891 scale = enc->width * enc->height * 255.0 * 255.0;
897 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
899 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
901 FF_ENABLE_DEPRECATION_WARNINGS
905 /* compute min output value */
906 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
907 if ((pts < ti1) && (pts > 0))
913 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
916 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
917 (double)total_size / 1024, ti1, bitrate);
920 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
923 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
928 print_final_stats(total_size);
932 static void flush_encoders(void)
936 for (i = 0; i < nb_output_streams; i++) {
937 OutputStream *ost = output_streams[i];
938 AVCodecContext *enc = ost->enc_ctx;
939 AVFormatContext *os = output_files[ost->file_index]->ctx;
940 int stop_encoding = 0;
942 if (!ost->encoding_needed)
945 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
949 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
952 switch (enc->codec_type) {
953 case AVMEDIA_TYPE_AUDIO:
954 encode = avcodec_encode_audio2;
957 case AVMEDIA_TYPE_VIDEO:
958 encode = avcodec_encode_video2;
968 av_init_packet(&pkt);
972 ret = encode(enc, &pkt, NULL, &got_packet);
974 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
977 if (ost->logfile && enc->stats_out) {
978 fprintf(ost->logfile, "%s", enc->stats_out);
984 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
985 write_frame(os, &pkt, ost);
995 * Check whether a packet from ist should be written into ost at this time
997 static int check_output_constraints(InputStream *ist, OutputStream *ost)
999 OutputFile *of = output_files[ost->file_index];
1000 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1002 if (ost->source_index != ist_index)
1005 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1011 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1013 OutputFile *of = output_files[ost->file_index];
1014 InputFile *f = input_files [ist->file_index];
1015 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1016 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1019 av_init_packet(&opkt);
1021 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1022 !ost->copy_initial_nonkeyframes)
1025 if (of->recording_time != INT64_MAX &&
1026 ist->last_dts >= of->recording_time + start_time) {
1031 if (f->recording_time != INT64_MAX) {
1032 start_time = f->ctx->start_time;
1033 if (f->start_time != AV_NOPTS_VALUE)
1034 start_time += f->start_time;
1035 if (ist->last_dts >= f->recording_time + start_time) {
1041 /* force the input stream PTS */
1042 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1045 if (pkt->pts != AV_NOPTS_VALUE)
1046 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1048 opkt.pts = AV_NOPTS_VALUE;
1050 if (pkt->dts == AV_NOPTS_VALUE)
1051 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1053 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1054 opkt.dts -= ost_tb_start_time;
1056 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1057 opkt.flags = pkt->flags;
1059 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1060 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1061 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1062 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1063 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1065 if (av_parser_change(ost->parser, ost->st->codec,
1066 &opkt.data, &opkt.size,
1067 pkt->data, pkt->size,
1068 pkt->flags & AV_PKT_FLAG_KEY)) {
1069 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1074 opkt.data = pkt->data;
1075 opkt.size = pkt->size;
1078 write_frame(of->ctx, &opkt, ost);
1081 int guess_input_channel_layout(InputStream *ist)
1083 AVCodecContext *dec = ist->dec_ctx;
1085 if (!dec->channel_layout) {
1086 char layout_name[256];
1088 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1089 if (!dec->channel_layout)
1091 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1092 dec->channels, dec->channel_layout);
1093 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1094 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1099 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1101 AVFrame *decoded_frame, *f;
1102 AVCodecContext *avctx = ist->dec_ctx;
1103 int i, ret, err = 0, resample_changed;
1105 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1106 return AVERROR(ENOMEM);
1107 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1108 return AVERROR(ENOMEM);
1109 decoded_frame = ist->decoded_frame;
1111 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1112 if (!*got_output || ret < 0)
1115 ist->samples_decoded += decoded_frame->nb_samples;
1116 ist->frames_decoded++;
1118 /* if the decoder provides a pts, use it instead of the last packet pts.
1119 the decoder could be delaying output by a packet or more. */
1120 if (decoded_frame->pts != AV_NOPTS_VALUE)
1121 ist->next_dts = decoded_frame->pts;
1122 else if (pkt->pts != AV_NOPTS_VALUE)
1123 decoded_frame->pts = pkt->pts;
1124 pkt->pts = AV_NOPTS_VALUE;
1126 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1127 ist->resample_channels != avctx->channels ||
1128 ist->resample_channel_layout != decoded_frame->channel_layout ||
1129 ist->resample_sample_rate != decoded_frame->sample_rate;
1130 if (resample_changed) {
1131 char layout1[64], layout2[64];
1133 if (!guess_input_channel_layout(ist)) {
1134 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1135 "layout for Input Stream #%d.%d\n", ist->file_index,
1139 decoded_frame->channel_layout = avctx->channel_layout;
1141 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1142 ist->resample_channel_layout);
1143 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1144 decoded_frame->channel_layout);
1146 av_log(NULL, AV_LOG_INFO,
1147 "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",
1148 ist->file_index, ist->st->index,
1149 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1150 ist->resample_channels, layout1,
1151 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1152 avctx->channels, layout2);
1154 ist->resample_sample_fmt = decoded_frame->format;
1155 ist->resample_sample_rate = decoded_frame->sample_rate;
1156 ist->resample_channel_layout = decoded_frame->channel_layout;
1157 ist->resample_channels = avctx->channels;
1159 for (i = 0; i < nb_filtergraphs; i++)
1160 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1161 configure_filtergraph(filtergraphs[i]) < 0) {
1162 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1167 if (decoded_frame->pts != AV_NOPTS_VALUE)
1168 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1170 (AVRational){1, avctx->sample_rate});
1171 ist->nb_samples = decoded_frame->nb_samples;
1172 for (i = 0; i < ist->nb_filters; i++) {
1173 if (i < ist->nb_filters - 1) {
1174 f = ist->filter_frame;
1175 err = av_frame_ref(f, decoded_frame);
1181 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1186 av_frame_unref(ist->filter_frame);
1187 av_frame_unref(decoded_frame);
1188 return err < 0 ? err : ret;
1191 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1193 AVFrame *decoded_frame, *f;
1194 int i, ret = 0, err = 0, resample_changed;
1196 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1197 return AVERROR(ENOMEM);
1198 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1199 return AVERROR(ENOMEM);
1200 decoded_frame = ist->decoded_frame;
1202 ret = avcodec_decode_video2(ist->dec_ctx,
1203 decoded_frame, got_output, pkt);
1204 if (!*got_output || ret < 0)
1207 ist->frames_decoded++;
1209 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1210 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1214 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1216 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1217 decoded_frame->pkt_dts);
1220 if (ist->st->sample_aspect_ratio.num)
1221 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1223 resample_changed = ist->resample_width != decoded_frame->width ||
1224 ist->resample_height != decoded_frame->height ||
1225 ist->resample_pix_fmt != decoded_frame->format;
1226 if (resample_changed) {
1227 av_log(NULL, AV_LOG_INFO,
1228 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1229 ist->file_index, ist->st->index,
1230 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1231 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1233 ret = poll_filters();
1234 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1236 av_strerror(ret, errbuf, sizeof(errbuf));
1238 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1241 ist->resample_width = decoded_frame->width;
1242 ist->resample_height = decoded_frame->height;
1243 ist->resample_pix_fmt = decoded_frame->format;
1245 for (i = 0; i < nb_filtergraphs; i++)
1246 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1247 configure_filtergraph(filtergraphs[i]) < 0) {
1248 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1253 for (i = 0; i < ist->nb_filters; i++) {
1254 if (i < ist->nb_filters - 1) {
1255 f = ist->filter_frame;
1256 err = av_frame_ref(f, decoded_frame);
1262 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1268 av_frame_unref(ist->filter_frame);
1269 av_frame_unref(decoded_frame);
1270 return err < 0 ? err : ret;
1273 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1275 AVSubtitle subtitle;
1276 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1277 &subtitle, got_output, pkt);
1283 ist->frames_decoded++;
1285 for (i = 0; i < nb_output_streams; i++) {
1286 OutputStream *ost = output_streams[i];
1288 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1291 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1294 avsubtitle_free(&subtitle);
1298 static int send_filter_eof(InputStream *ist)
1301 for (i = 0; i < ist->nb_filters; i++) {
1302 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1309 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1310 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1316 if (ist->next_dts == AV_NOPTS_VALUE)
1317 ist->next_dts = ist->last_dts;
1321 av_init_packet(&avpkt);
1329 if (pkt->dts != AV_NOPTS_VALUE)
1330 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1332 // while we have more to decode or while the decoder did output something on EOF
1333 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1337 ist->last_dts = ist->next_dts;
1339 if (avpkt.size && avpkt.size != pkt->size &&
1340 !(ist->dec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
1341 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1342 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1343 ist->showed_multi_packet_warning = 1;
1346 switch (ist->dec_ctx->codec_type) {
1347 case AVMEDIA_TYPE_AUDIO:
1348 ret = decode_audio (ist, &avpkt, &got_output);
1350 case AVMEDIA_TYPE_VIDEO:
1351 ret = decode_video (ist, &avpkt, &got_output);
1353 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1354 else if (ist->st->avg_frame_rate.num)
1355 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1357 else if (ist->dec_ctx->framerate.num != 0) {
1358 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1359 ist->dec_ctx->ticks_per_frame;
1360 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1363 case AVMEDIA_TYPE_SUBTITLE:
1364 ret = transcode_subtitles(ist, &avpkt, &got_output);
1371 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1372 ist->file_index, ist->st->index);
1378 // touch data and size only if not EOF
1388 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1389 /* except when looping we need to flush but not to send an EOF */
1390 if (!pkt && ist->decoding_needed && !no_eof) {
1391 int ret = send_filter_eof(ist);
1393 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1398 /* handle stream copy */
1399 if (!ist->decoding_needed) {
1400 ist->last_dts = ist->next_dts;
1401 switch (ist->dec_ctx->codec_type) {
1402 case AVMEDIA_TYPE_AUDIO:
1403 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1404 ist->dec_ctx->sample_rate;
1406 case AVMEDIA_TYPE_VIDEO:
1407 if (ist->dec_ctx->framerate.num != 0) {
1408 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1409 ist->next_dts += ((int64_t)AV_TIME_BASE *
1410 ist->dec_ctx->framerate.den * ticks) /
1411 ist->dec_ctx->framerate.num;
1416 for (i = 0; pkt && i < nb_output_streams; i++) {
1417 OutputStream *ost = output_streams[i];
1419 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1422 do_streamcopy(ist, ost, pkt);
1428 static void print_sdp(void)
1432 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1436 for (i = 0; i < nb_output_files; i++)
1437 avc[i] = output_files[i]->ctx;
1439 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1440 printf("SDP:\n%s\n", sdp);
1445 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1448 for (i = 0; hwaccels[i].name; i++)
1449 if (hwaccels[i].pix_fmt == pix_fmt)
1450 return &hwaccels[i];
1454 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1456 InputStream *ist = s->opaque;
1457 const enum AVPixelFormat *p;
1460 for (p = pix_fmts; *p != -1; p++) {
1461 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1462 const HWAccel *hwaccel;
1464 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1467 hwaccel = get_hwaccel(*p);
1469 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1470 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1473 ret = hwaccel->init(s);
1475 if (ist->hwaccel_id == hwaccel->id) {
1476 av_log(NULL, AV_LOG_FATAL,
1477 "%s hwaccel requested for input stream #%d:%d, "
1478 "but cannot be initialized.\n", hwaccel->name,
1479 ist->file_index, ist->st->index);
1480 return AV_PIX_FMT_NONE;
1484 ist->active_hwaccel_id = hwaccel->id;
1485 ist->hwaccel_pix_fmt = *p;
1492 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1494 InputStream *ist = s->opaque;
1496 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1497 return ist->hwaccel_get_buffer(s, frame, flags);
1499 return avcodec_default_get_buffer2(s, frame, flags);
1502 static int init_input_stream(int ist_index, char *error, int error_len)
1505 InputStream *ist = input_streams[ist_index];
1506 if (ist->decoding_needed) {
1507 AVCodec *codec = ist->dec;
1509 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1510 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1511 return AVERROR(EINVAL);
1514 ist->dec_ctx->opaque = ist;
1515 ist->dec_ctx->get_format = get_format;
1516 ist->dec_ctx->get_buffer2 = get_buffer;
1517 ist->dec_ctx->thread_safe_callbacks = 1;
1519 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1521 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1522 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1523 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1525 if (ret == AVERROR_EXPERIMENTAL)
1526 abort_codec_experimental(codec, 0);
1528 av_strerror(ret, errbuf, sizeof(errbuf));
1530 snprintf(error, error_len,
1531 "Error while opening decoder for input stream "
1533 ist->file_index, ist->st->index, errbuf);
1536 assert_avoptions(ist->decoder_opts);
1539 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;
1540 ist->next_dts = AV_NOPTS_VALUE;
1541 init_pts_correction(&ist->pts_ctx);
1546 static InputStream *get_input_stream(OutputStream *ost)
1548 if (ost->source_index >= 0)
1549 return input_streams[ost->source_index];
1552 FilterGraph *fg = ost->filter->graph;
1555 for (i = 0; i < fg->nb_inputs; i++)
1556 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1557 return fg->inputs[i]->ist;
1563 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1567 if (ost->encoding_needed) {
1568 AVCodec *codec = ost->enc;
1569 AVCodecContext *dec = NULL;
1572 if ((ist = get_input_stream(ost)))
1574 if (dec && dec->subtitle_header) {
1575 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1576 if (!ost->enc_ctx->subtitle_header)
1577 return AVERROR(ENOMEM);
1578 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1579 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1581 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1582 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
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_copy_context(ost->st->codec, ost->enc_ctx);
1600 av_log(NULL, AV_LOG_FATAL,
1601 "Error initializing the output stream codec context.\n");
1605 if (ost->enc_ctx->nb_coded_side_data) {
1608 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
1609 sizeof(*ost->st->side_data));
1610 if (!ost->st->side_data)
1611 return AVERROR(ENOMEM);
1613 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
1614 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
1615 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1617 sd_dst->data = av_malloc(sd_src->size);
1619 return AVERROR(ENOMEM);
1620 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1621 sd_dst->size = sd_src->size;
1622 sd_dst->type = sd_src->type;
1623 ost->st->nb_side_data++;
1627 ost->st->time_base = ost->enc_ctx->time_base;
1629 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1632 ost->st->time_base = ost->st->codec->time_base;
1638 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1639 AVCodecContext *avctx)
1645 for (p = kf; *p; p++)
1648 ost->forced_kf_count = n;
1649 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1650 if (!ost->forced_kf_pts) {
1651 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1656 for (i = 0; i < n; i++) {
1657 char *next = strchr(p, ',');
1662 t = parse_time_or_die("force_key_frames", p, 1);
1663 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1669 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1671 AVDictionaryEntry *e;
1673 uint8_t *encoder_string;
1674 int encoder_string_len;
1675 int format_flags = 0;
1677 e = av_dict_get(of->opts, "fflags", NULL, 0);
1679 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1682 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1685 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1686 encoder_string = av_mallocz(encoder_string_len);
1687 if (!encoder_string)
1690 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1691 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1692 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1693 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1694 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1697 static int transcode_init(void)
1699 int ret = 0, i, j, k;
1700 AVFormatContext *oc;
1706 /* init framerate emulation */
1707 for (i = 0; i < nb_input_files; i++) {
1708 InputFile *ifile = input_files[i];
1709 if (ifile->rate_emu)
1710 for (j = 0; j < ifile->nb_streams; j++)
1711 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1714 /* for each output stream, we compute the right encoding parameters */
1715 for (i = 0; i < nb_output_streams; i++) {
1716 AVCodecContext *enc_ctx;
1717 AVCodecContext *dec_ctx = NULL;
1718 ost = output_streams[i];
1719 oc = output_files[ost->file_index]->ctx;
1720 ist = get_input_stream(ost);
1722 if (ost->attachment_filename)
1725 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
1728 dec_ctx = ist->dec_ctx;
1730 ost->st->disposition = ist->st->disposition;
1731 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1732 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1735 if (ost->stream_copy) {
1737 uint64_t extra_size;
1739 av_assert0(ist && !ost->filter);
1741 extra_size = (uint64_t)dec_ctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1743 if (extra_size > INT_MAX) {
1744 return AVERROR(EINVAL);
1747 /* if stream_copy is selected, no need to decode or encode */
1748 enc_ctx->codec_id = dec_ctx->codec_id;
1749 enc_ctx->codec_type = dec_ctx->codec_type;
1751 if (!enc_ctx->codec_tag) {
1752 if (!oc->oformat->codec_tag ||
1753 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1754 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1755 enc_ctx->codec_tag = dec_ctx->codec_tag;
1758 enc_ctx->bit_rate = dec_ctx->bit_rate;
1759 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1760 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1761 enc_ctx->field_order = dec_ctx->field_order;
1762 enc_ctx->extradata = av_mallocz(extra_size);
1763 if (!enc_ctx->extradata) {
1764 return AVERROR(ENOMEM);
1766 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1767 enc_ctx->extradata_size = dec_ctx->extradata_size;
1769 enc_ctx->time_base = dec_ctx->time_base;
1770 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1771 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1772 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1774 enc_ctx->time_base = ist->st->time_base;
1776 if (ist->st->nb_side_data) {
1777 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1778 sizeof(*ist->st->side_data));
1779 if (!ost->st->side_data)
1780 return AVERROR(ENOMEM);
1782 for (j = 0; j < ist->st->nb_side_data; j++) {
1783 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1784 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1786 sd_dst->data = av_malloc(sd_src->size);
1788 return AVERROR(ENOMEM);
1789 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1790 sd_dst->size = sd_src->size;
1791 sd_dst->type = sd_src->type;
1792 ost->st->nb_side_data++;
1796 ost->parser = av_parser_init(enc_ctx->codec_id);
1798 switch (enc_ctx->codec_type) {
1799 case AVMEDIA_TYPE_AUDIO:
1800 if (audio_volume != 256) {
1801 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1804 enc_ctx->channel_layout = dec_ctx->channel_layout;
1805 enc_ctx->sample_rate = dec_ctx->sample_rate;
1806 enc_ctx->channels = dec_ctx->channels;
1807 enc_ctx->frame_size = dec_ctx->frame_size;
1808 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1809 enc_ctx->block_align = dec_ctx->block_align;
1811 case AVMEDIA_TYPE_VIDEO:
1812 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1813 enc_ctx->width = dec_ctx->width;
1814 enc_ctx->height = dec_ctx->height;
1815 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1816 if (ost->frame_aspect_ratio)
1817 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1818 else if (ist->st->sample_aspect_ratio.num)
1819 sar = ist->st->sample_aspect_ratio;
1821 sar = dec_ctx->sample_aspect_ratio;
1822 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1824 case AVMEDIA_TYPE_SUBTITLE:
1825 enc_ctx->width = dec_ctx->width;
1826 enc_ctx->height = dec_ctx->height;
1828 case AVMEDIA_TYPE_DATA:
1829 case AVMEDIA_TYPE_ATTACHMENT:
1836 /* should only happen when a default codec is not present. */
1837 snprintf(error, sizeof(error), "Automatic encoder selection "
1838 "failed for output stream #%d:%d. Default encoder for "
1839 "format %s is probably disabled. Please choose an "
1840 "encoder manually.\n", ost->file_index, ost->index,
1842 ret = AVERROR(EINVAL);
1846 set_encoder_id(output_files[ost->file_index], ost);
1849 * We want CFR output if and only if one of those is true:
1850 * 1) user specified output framerate with -r
1851 * 2) user specified -vsync cfr
1852 * 3) output format is CFR and the user didn't force vsync to
1853 * something else than CFR
1855 * in such a case, set ost->frame_rate
1857 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1858 !ost->frame_rate.num && ist &&
1859 (video_sync_method == VSYNC_CFR ||
1860 (video_sync_method == VSYNC_AUTO &&
1861 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1862 if (ist->framerate.num)
1863 ost->frame_rate = ist->framerate;
1864 else if (ist->st->avg_frame_rate.num)
1865 ost->frame_rate = ist->st->avg_frame_rate;
1867 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1868 "for the output stream #%d:%d, but no information "
1869 "about the input framerate is available. Falling "
1870 "back to a default value of 25fps. Use the -r option "
1871 "if you want a different framerate.\n",
1872 ost->file_index, ost->index);
1873 ost->frame_rate = (AVRational){ 25, 1 };
1876 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1877 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1878 ost->frame_rate = ost->enc->supported_framerates[idx];
1883 if (qsv_transcode_init(ost))
1888 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1889 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1891 fg = init_simple_filtergraph(ist, ost);
1892 if (configure_filtergraph(fg)) {
1893 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1898 switch (enc_ctx->codec_type) {
1899 case AVMEDIA_TYPE_AUDIO:
1900 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1901 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1902 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1903 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1904 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1906 case AVMEDIA_TYPE_VIDEO:
1907 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1909 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1910 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1911 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1912 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1913 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1914 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1915 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1917 ost->st->avg_frame_rate = ost->frame_rate;
1920 (enc_ctx->width != dec_ctx->width ||
1921 enc_ctx->height != dec_ctx->height ||
1922 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1923 enc_ctx->bits_per_raw_sample = 0;
1926 if (ost->forced_keyframes)
1927 parse_forced_key_frames(ost->forced_keyframes, ost,
1930 case AVMEDIA_TYPE_SUBTITLE:
1931 enc_ctx->time_base = (AVRational){1, 1000};
1940 /* open each encoder */
1941 for (i = 0; i < nb_output_streams; i++) {
1942 ret = init_output_stream(output_streams[i], error, sizeof(error));
1947 /* init input streams */
1948 for (i = 0; i < nb_input_streams; i++)
1949 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1952 /* discard unused programs */
1953 for (i = 0; i < nb_input_files; i++) {
1954 InputFile *ifile = input_files[i];
1955 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1956 AVProgram *p = ifile->ctx->programs[j];
1957 int discard = AVDISCARD_ALL;
1959 for (k = 0; k < p->nb_stream_indexes; k++)
1960 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1961 discard = AVDISCARD_DEFAULT;
1964 p->discard = discard;
1968 /* open files and write file headers */
1969 for (i = 0; i < nb_output_files; i++) {
1970 oc = output_files[i]->ctx;
1971 oc->interrupt_callback = int_cb;
1972 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1974 av_strerror(ret, errbuf, sizeof(errbuf));
1975 snprintf(error, sizeof(error),
1976 "Could not write header for output file #%d "
1977 "(incorrect codec parameters ?): %s",
1979 ret = AVERROR(EINVAL);
1982 assert_avoptions(output_files[i]->opts);
1983 if (strcmp(oc->oformat->name, "rtp")) {
1989 /* dump the file output parameters - cannot be done before in case
1991 for (i = 0; i < nb_output_files; i++) {
1992 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1995 /* dump the stream mapping */
1996 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1997 for (i = 0; i < nb_input_streams; i++) {
1998 ist = input_streams[i];
2000 for (j = 0; j < ist->nb_filters; j++) {
2001 if (ist->filters[j]->graph->graph_desc) {
2002 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2003 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2004 ist->filters[j]->name);
2005 if (nb_filtergraphs > 1)
2006 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2007 av_log(NULL, AV_LOG_INFO, "\n");
2012 for (i = 0; i < nb_output_streams; i++) {
2013 ost = output_streams[i];
2015 if (ost->attachment_filename) {
2016 /* an attached file */
2017 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2018 ost->attachment_filename, ost->file_index, ost->index);
2022 if (ost->filter && ost->filter->graph->graph_desc) {
2023 /* output from a complex graph */
2024 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2025 if (nb_filtergraphs > 1)
2026 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2028 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2029 ost->index, ost->enc ? ost->enc->name : "?");
2033 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2034 input_streams[ost->source_index]->file_index,
2035 input_streams[ost->source_index]->st->index,
2038 if (ost->sync_ist != input_streams[ost->source_index])
2039 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2040 ost->sync_ist->file_index,
2041 ost->sync_ist->st->index);
2042 if (ost->stream_copy)
2043 av_log(NULL, AV_LOG_INFO, " (copy)");
2045 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2046 const AVCodec *out_codec = ost->enc;
2047 const char *decoder_name = "?";
2048 const char *in_codec_name = "?";
2049 const char *encoder_name = "?";
2050 const char *out_codec_name = "?";
2051 const AVCodecDescriptor *desc;
2054 decoder_name = in_codec->name;
2055 desc = avcodec_descriptor_get(in_codec->id);
2057 in_codec_name = desc->name;
2058 if (!strcmp(decoder_name, in_codec_name))
2059 decoder_name = "native";
2063 encoder_name = out_codec->name;
2064 desc = avcodec_descriptor_get(out_codec->id);
2066 out_codec_name = desc->name;
2067 if (!strcmp(encoder_name, out_codec_name))
2068 encoder_name = "native";
2071 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2072 in_codec_name, decoder_name,
2073 out_codec_name, encoder_name);
2075 av_log(NULL, AV_LOG_INFO, "\n");
2079 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2090 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2091 static int need_output(void)
2095 for (i = 0; i < nb_output_streams; i++) {
2096 OutputStream *ost = output_streams[i];
2097 OutputFile *of = output_files[ost->file_index];
2098 AVFormatContext *os = output_files[ost->file_index]->ctx;
2100 if (ost->finished ||
2101 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2103 if (ost->frame_number >= ost->max_frames) {
2105 for (j = 0; j < of->ctx->nb_streams; j++)
2106 output_streams[of->ost_index + j]->finished = 1;
2116 static InputFile *select_input_file(void)
2118 InputFile *ifile = NULL;
2119 int64_t ipts_min = INT64_MAX;
2122 for (i = 0; i < nb_input_streams; i++) {
2123 InputStream *ist = input_streams[i];
2124 int64_t ipts = ist->last_dts;
2126 if (ist->discard || input_files[ist->file_index]->eagain)
2128 if (!input_files[ist->file_index]->eof_reached) {
2129 if (ipts < ipts_min) {
2131 ifile = input_files[ist->file_index];
2140 static void *input_thread(void *arg)
2145 while (!transcoding_finished && ret >= 0) {
2147 ret = av_read_frame(f->ctx, &pkt);
2149 if (ret == AVERROR(EAGAIN)) {
2156 pthread_mutex_lock(&f->fifo_lock);
2157 while (!av_fifo_space(f->fifo))
2158 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2160 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2162 pthread_mutex_unlock(&f->fifo_lock);
2169 static void free_input_threads(void)
2173 if (nb_input_files == 1)
2176 transcoding_finished = 1;
2178 for (i = 0; i < nb_input_files; i++) {
2179 InputFile *f = input_files[i];
2182 if (!f->fifo || f->joined)
2185 pthread_mutex_lock(&f->fifo_lock);
2186 while (av_fifo_size(f->fifo)) {
2187 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2188 av_packet_unref(&pkt);
2190 pthread_cond_signal(&f->fifo_cond);
2191 pthread_mutex_unlock(&f->fifo_lock);
2193 pthread_join(f->thread, NULL);
2196 while (av_fifo_size(f->fifo)) {
2197 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2198 av_packet_unref(&pkt);
2200 av_fifo_free(f->fifo);
2204 static int init_input_threads(void)
2208 if (nb_input_files == 1)
2211 for (i = 0; i < nb_input_files; i++) {
2212 InputFile *f = input_files[i];
2214 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2215 return AVERROR(ENOMEM);
2217 pthread_mutex_init(&f->fifo_lock, NULL);
2218 pthread_cond_init (&f->fifo_cond, NULL);
2220 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2221 return AVERROR(ret);
2226 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2230 pthread_mutex_lock(&f->fifo_lock);
2232 if (av_fifo_size(f->fifo)) {
2233 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2234 pthread_cond_signal(&f->fifo_cond);
2239 ret = AVERROR(EAGAIN);
2242 pthread_mutex_unlock(&f->fifo_lock);
2248 static int get_input_packet(InputFile *f, AVPacket *pkt)
2252 for (i = 0; i < f->nb_streams; i++) {
2253 InputStream *ist = input_streams[f->ist_index + i];
2254 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2255 int64_t now = av_gettime_relative() - ist->start;
2257 return AVERROR(EAGAIN);
2262 if (nb_input_files > 1)
2263 return get_input_packet_mt(f, pkt);
2265 return av_read_frame(f->ctx, pkt);
2268 static int got_eagain(void)
2271 for (i = 0; i < nb_input_files; i++)
2272 if (input_files[i]->eagain)
2277 static void reset_eagain(void)
2280 for (i = 0; i < nb_input_files; i++)
2281 input_files[i]->eagain = 0;
2284 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2285 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2286 AVRational time_base)
2292 return tmp_time_base;
2295 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2298 return tmp_time_base;
2304 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2307 AVCodecContext *avctx;
2308 int i, ret, has_audio = 0;
2309 int64_t duration = 0;
2311 ret = av_seek_frame(is, -1, is->start_time, 0);
2315 for (i = 0; i < ifile->nb_streams; i++) {
2316 ist = input_streams[ifile->ist_index + i];
2317 avctx = ist->dec_ctx;
2320 if (ist->decoding_needed) {
2321 process_input_packet(ist, NULL, 1);
2322 avcodec_flush_buffers(avctx);
2325 /* duration is the length of the last frame in a stream
2326 * when audio stream is present we don't care about
2327 * last video frame length because it's not defined exactly */
2328 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2332 for (i = 0; i < ifile->nb_streams; i++) {
2333 ist = input_streams[ifile->ist_index + i];
2334 avctx = ist->dec_ctx;
2337 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2338 AVRational sample_rate = {1, avctx->sample_rate};
2340 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2344 if (ist->framerate.num) {
2345 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2346 } else if (ist->st->avg_frame_rate.num) {
2347 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2348 } else duration = 1;
2350 if (!ifile->duration)
2351 ifile->time_base = ist->st->time_base;
2352 /* the total duration of the stream, max_pts - min_pts is
2353 * the duration of the stream without the last frame */
2354 duration += ist->max_pts - ist->min_pts;
2355 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2359 if (ifile->loop > 0)
2366 * Read one packet from an input file and send it for
2367 * - decoding -> lavfi (audio/video)
2368 * - decoding -> encoding -> muxing (subtitles)
2369 * - muxing (streamcopy)
2372 * - 0 -- one packet was read and processed
2373 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2374 * this function should be called again
2375 * - AVERROR_EOF -- this function should not be called again
2377 static int process_input(void)
2380 AVFormatContext *is;
2386 /* select the stream that we must read now */
2387 ifile = select_input_file();
2388 /* if none, if is finished */
2393 return AVERROR(EAGAIN);
2395 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2400 ret = get_input_packet(ifile, &pkt);
2402 if (ret == AVERROR(EAGAIN)) {
2406 if (ret < 0 && ifile->loop) {
2407 if ((ret = seek_to_start(ifile, is)) < 0)
2409 ret = get_input_packet(ifile, &pkt);
2412 if (ret != AVERROR_EOF) {
2413 print_error(is->filename, ret);
2417 ifile->eof_reached = 1;
2419 for (i = 0; i < ifile->nb_streams; i++) {
2420 ist = input_streams[ifile->ist_index + i];
2421 if (ist->decoding_needed)
2422 process_input_packet(ist, NULL, 0);
2424 /* mark all outputs that don't go through lavfi as finished */
2425 for (j = 0; j < nb_output_streams; j++) {
2426 OutputStream *ost = output_streams[j];
2428 if (ost->source_index == ifile->ist_index + i &&
2429 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2430 finish_output_stream(ost);
2434 return AVERROR(EAGAIN);
2440 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2441 is->streams[pkt.stream_index]);
2443 /* the following test is needed in case new streams appear
2444 dynamically in stream : we ignore them */
2445 if (pkt.stream_index >= ifile->nb_streams)
2446 goto discard_packet;
2448 ist = input_streams[ifile->ist_index + pkt.stream_index];
2450 ist->data_size += pkt.size;
2454 goto discard_packet;
2456 /* add the stream-global side data to the first packet */
2457 if (ist->nb_packets == 1)
2458 for (i = 0; i < ist->st->nb_side_data; i++) {
2459 AVPacketSideData *src_sd = &ist->st->side_data[i];
2462 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2464 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2467 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2471 memcpy(dst_data, src_sd->data, src_sd->size);
2474 if (pkt.dts != AV_NOPTS_VALUE)
2475 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2476 if (pkt.pts != AV_NOPTS_VALUE)
2477 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2479 if (pkt.pts != AV_NOPTS_VALUE)
2480 pkt.pts *= ist->ts_scale;
2481 if (pkt.dts != AV_NOPTS_VALUE)
2482 pkt.dts *= ist->ts_scale;
2484 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2485 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2486 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2487 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2488 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2489 int64_t delta = pkt_dts - ist->next_dts;
2491 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2492 ifile->ts_offset -= delta;
2493 av_log(NULL, AV_LOG_DEBUG,
2494 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2495 delta, ifile->ts_offset);
2496 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2497 if (pkt.pts != AV_NOPTS_VALUE)
2498 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2501 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2502 if (pkt.pts != AV_NOPTS_VALUE) {
2503 pkt.pts += duration;
2504 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2505 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2508 if (pkt.dts != AV_NOPTS_VALUE)
2509 pkt.dts += duration;
2511 process_input_packet(ist, &pkt, 0);
2514 av_packet_unref(&pkt);
2520 * The following code is the main loop of the file converter
2522 static int transcode(void)
2524 int ret, i, need_input = 1;
2525 AVFormatContext *os;
2528 int64_t timer_start;
2530 ret = transcode_init();
2534 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2537 timer_start = av_gettime_relative();
2540 if ((ret = init_input_threads()) < 0)
2544 while (!received_sigterm) {
2545 /* check if there's any stream where output is still needed */
2546 if (!need_output()) {
2547 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2551 /* read and process one input packet if needed */
2553 ret = process_input();
2554 if (ret == AVERROR_EOF)
2558 ret = poll_filters();
2560 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
2564 av_strerror(ret, errbuf, sizeof(errbuf));
2566 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2571 /* dump report by using the output first video and audio streams */
2572 print_report(0, timer_start);
2575 free_input_threads();
2578 /* at the end of stream, we must flush the decoder buffers */
2579 for (i = 0; i < nb_input_streams; i++) {
2580 ist = input_streams[i];
2581 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2582 process_input_packet(ist, NULL, 0);
2590 /* write the trailer if needed and close file */
2591 for (i = 0; i < nb_output_files; i++) {
2592 os = output_files[i]->ctx;
2593 av_write_trailer(os);
2596 /* dump report by using the first video and audio streams */
2597 print_report(1, timer_start);
2599 /* close each encoder */
2600 for (i = 0; i < nb_output_streams; i++) {
2601 ost = output_streams[i];
2602 if (ost->encoding_needed) {
2603 av_freep(&ost->enc_ctx->stats_in);
2607 /* close each decoder */
2608 for (i = 0; i < nb_input_streams; i++) {
2609 ist = input_streams[i];
2610 if (ist->decoding_needed) {
2611 avcodec_close(ist->dec_ctx);
2612 if (ist->hwaccel_uninit)
2613 ist->hwaccel_uninit(ist->dec_ctx);
2622 free_input_threads();
2625 if (output_streams) {
2626 for (i = 0; i < nb_output_streams; i++) {
2627 ost = output_streams[i];
2630 fclose(ost->logfile);
2631 ost->logfile = NULL;
2633 av_free(ost->forced_kf_pts);
2634 av_dict_free(&ost->encoder_opts);
2635 av_dict_free(&ost->resample_opts);
2642 static int64_t getutime(void)
2645 struct rusage rusage;
2647 getrusage(RUSAGE_SELF, &rusage);
2648 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2649 #elif HAVE_GETPROCESSTIMES
2651 FILETIME c, e, k, u;
2652 proc = GetCurrentProcess();
2653 GetProcessTimes(proc, &c, &e, &k, &u);
2654 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2656 return av_gettime_relative();
2660 static int64_t getmaxrss(void)
2662 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2663 struct rusage rusage;
2664 getrusage(RUSAGE_SELF, &rusage);
2665 return (int64_t)rusage.ru_maxrss * 1024;
2666 #elif HAVE_GETPROCESSMEMORYINFO
2668 PROCESS_MEMORY_COUNTERS memcounters;
2669 proc = GetCurrentProcess();
2670 memcounters.cb = sizeof(memcounters);
2671 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2672 return memcounters.PeakPagefileUsage;
2678 int main(int argc, char **argv)
2683 register_exit(avconv_cleanup);
2685 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2686 parse_loglevel(argc, argv, options);
2688 avcodec_register_all();
2690 avdevice_register_all();
2692 avfilter_register_all();
2694 avformat_network_init();
2698 /* parse options and open all input/output files */
2699 ret = avconv_parse_options(argc, argv);
2703 if (nb_output_files <= 0 && nb_input_files == 0) {
2705 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2709 /* file converter / grab */
2710 if (nb_output_files <= 0) {
2711 fprintf(stderr, "At least one output file must be specified\n");
2716 if (transcode() < 0)
2718 ti = getutime() - ti;
2720 int maxrss = getmaxrss() / 1024;
2721 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);