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/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/time.h"
49 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
80 #include "libavutil/avassert.h"
82 const char program_name[] = "avconv";
83 const int program_birth_year = 2000;
85 static FILE *vstats_file;
87 static int nb_frames_drop = 0;
92 /* signal to input threads that they should exit; set by the main thread */
93 static int transcoding_finished;
96 InputStream **input_streams = NULL;
97 int nb_input_streams = 0;
98 InputFile **input_files = NULL;
99 int nb_input_files = 0;
101 OutputStream **output_streams = NULL;
102 int nb_output_streams = 0;
103 OutputFile **output_files = NULL;
104 int nb_output_files = 0;
106 FilterGraph **filtergraphs;
109 static void term_exit(void)
111 av_log(NULL, AV_LOG_QUIET, "");
114 static volatile int received_sigterm = 0;
115 static volatile int received_nb_signals = 0;
118 sigterm_handler(int sig)
120 received_sigterm = sig;
121 received_nb_signals++;
125 static void term_init(void)
127 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
128 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
130 signal(SIGXCPU, sigterm_handler);
134 static int decode_interrupt_cb(void *ctx)
136 return received_nb_signals > 1;
139 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
141 static void avconv_cleanup(int ret)
145 for (i = 0; i < nb_filtergraphs; i++) {
146 FilterGraph *fg = filtergraphs[i];
147 avfilter_graph_free(&fg->graph);
148 for (j = 0; j < fg->nb_inputs; j++) {
149 av_freep(&fg->inputs[j]->name);
150 av_freep(&fg->inputs[j]);
152 av_freep(&fg->inputs);
153 for (j = 0; j < fg->nb_outputs; j++) {
154 av_freep(&fg->outputs[j]->name);
155 av_freep(&fg->outputs[j]);
157 av_freep(&fg->outputs);
158 av_freep(&fg->graph_desc);
160 av_freep(&filtergraphs[i]);
162 av_freep(&filtergraphs);
165 for (i = 0; i < nb_output_files; i++) {
166 OutputFile *of = output_files[i];
167 AVFormatContext *s = of->ctx;
168 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
170 avformat_free_context(s);
171 av_dict_free(&of->opts);
173 av_freep(&output_files[i]);
175 for (i = 0; i < nb_output_streams; i++) {
176 OutputStream *ost = output_streams[i];
177 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
179 AVBitStreamFilterContext *next = bsfc->next;
180 av_bitstream_filter_close(bsfc);
183 ost->bitstream_filters = NULL;
184 av_frame_free(&ost->filtered_frame);
186 av_parser_close(ost->parser);
188 av_freep(&ost->forced_keyframes);
189 av_freep(&ost->avfilter);
190 av_freep(&ost->logfile_prefix);
192 avcodec_free_context(&ost->enc_ctx);
194 av_freep(&output_streams[i]);
196 for (i = 0; i < nb_input_files; i++) {
197 avformat_close_input(&input_files[i]->ctx);
198 av_freep(&input_files[i]);
200 for (i = 0; i < nb_input_streams; i++) {
201 InputStream *ist = input_streams[i];
203 av_frame_free(&ist->decoded_frame);
204 av_frame_free(&ist->filter_frame);
205 av_dict_free(&ist->decoder_opts);
206 av_freep(&ist->filters);
207 av_freep(&ist->hwaccel_device);
209 avcodec_free_context(&ist->dec_ctx);
211 av_freep(&input_streams[i]);
216 av_free(vstats_filename);
218 av_freep(&input_streams);
219 av_freep(&input_files);
220 av_freep(&output_streams);
221 av_freep(&output_files);
225 avformat_network_deinit();
227 if (received_sigterm) {
228 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
229 (int) received_sigterm);
234 void assert_avoptions(AVDictionary *m)
236 AVDictionaryEntry *t;
237 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
238 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
243 static void abort_codec_experimental(AVCodec *c, int encoder)
245 const char *codec_string = encoder ? "encoder" : "decoder";
247 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
248 "results.\nAdd '-strict experimental' if you want to use it.\n",
249 codec_string, c->name);
250 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
251 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
252 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
253 codec_string, codec->name);
257 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
259 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
260 AVCodecContext *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
264 * Audio encoders may split the packets -- #frames in != #packets out.
265 * But there is no reordering, so we can limit the number of output packets
266 * by simply dropping them here.
267 * Counting encoded video frames needs to be done separately because of
268 * reordering, see do_video_out()
270 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
271 if (ost->frame_number >= ost->max_frames) {
277 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
278 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
280 ost->quality = sd ? *(int *)sd : -1;
284 AVPacket new_pkt = *pkt;
285 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
286 &new_pkt.data, &new_pkt.size,
287 pkt->data, pkt->size,
288 pkt->flags & AV_PKT_FLAG_KEY);
291 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
292 av_buffer_default_free, NULL, 0);
296 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
297 bsfc->filter->name, pkt->stream_index,
298 avctx->codec ? avctx->codec->name : "copy");
308 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
309 ost->last_mux_dts != AV_NOPTS_VALUE &&
310 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
311 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
312 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
313 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
315 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
318 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
319 "in incorrect timestamps in the output file.\n",
320 ost->last_mux_dts + 1);
321 pkt->dts = ost->last_mux_dts + 1;
322 if (pkt->pts != AV_NOPTS_VALUE)
323 pkt->pts = FFMAX(pkt->pts, pkt->dts);
325 ost->last_mux_dts = pkt->dts;
327 ost->data_size += pkt->size;
328 ost->packets_written++;
330 pkt->stream_index = ost->index;
331 ret = av_interleaved_write_frame(s, pkt);
333 print_error("av_interleaved_write_frame()", ret);
338 static int check_recording_time(OutputStream *ost)
340 OutputFile *of = output_files[ost->file_index];
342 if (of->recording_time != INT64_MAX &&
343 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
344 AV_TIME_BASE_Q) >= 0) {
351 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
354 AVCodecContext *enc = ost->enc_ctx;
358 av_init_packet(&pkt);
362 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
363 frame->pts = ost->sync_opts;
364 ost->sync_opts = frame->pts + frame->nb_samples;
366 ost->samples_encoded += frame->nb_samples;
367 ost->frames_encoded++;
369 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
370 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
375 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
376 write_frame(s, &pkt, ost);
380 static void do_subtitle_out(AVFormatContext *s,
386 static uint8_t *subtitle_out = NULL;
387 int subtitle_out_max_size = 1024 * 1024;
388 int subtitle_out_size, nb, i;
392 if (pts == AV_NOPTS_VALUE) {
393 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
402 subtitle_out = av_malloc(subtitle_out_max_size);
405 /* Note: DVB subtitle need one packet to draw them and one other
406 packet to clear them */
407 /* XXX: signal it in the codec context ? */
408 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
413 for (i = 0; i < nb; i++) {
414 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
415 if (!check_recording_time(ost))
418 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
419 // start_display_time is required to be 0
420 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
421 sub->end_display_time -= sub->start_display_time;
422 sub->start_display_time = 0;
424 ost->frames_encoded++;
426 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
427 subtitle_out_max_size, sub);
428 if (subtitle_out_size < 0) {
429 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
433 av_init_packet(&pkt);
434 pkt.data = subtitle_out;
435 pkt.size = subtitle_out_size;
436 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
437 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
438 /* XXX: the pts correction is handled here. Maybe handling
439 it in the codec would be better */
441 pkt.pts += 90 * sub->start_display_time;
443 pkt.pts += 90 * sub->end_display_time;
445 write_frame(s, &pkt, ost);
449 static void do_video_out(AVFormatContext *s,
454 int ret, format_video_sync;
456 AVCodecContext *enc = ost->enc_ctx;
460 format_video_sync = video_sync_method;
461 if (format_video_sync == VSYNC_AUTO)
462 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
463 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
464 if (format_video_sync != VSYNC_PASSTHROUGH &&
466 in_picture->pts != AV_NOPTS_VALUE &&
467 in_picture->pts < ost->sync_opts) {
469 av_log(NULL, AV_LOG_WARNING,
470 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
471 ost->frame_number, ost->st->index, in_picture->pts);
475 if (in_picture->pts == AV_NOPTS_VALUE)
476 in_picture->pts = ost->sync_opts;
477 ost->sync_opts = in_picture->pts;
480 if (!ost->frame_number)
481 ost->first_pts = in_picture->pts;
483 av_init_packet(&pkt);
487 if (ost->frame_number >= ost->max_frames)
490 if (s->oformat->flags & AVFMT_RAWPICTURE &&
491 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
492 /* raw pictures are written as AVPicture structure to
493 avoid any copies. We support temporarily the older
495 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
496 enc->coded_frame->top_field_first = in_picture->top_field_first;
497 pkt.data = (uint8_t *)in_picture;
498 pkt.size = sizeof(AVPicture);
499 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
500 pkt.flags |= AV_PKT_FLAG_KEY;
502 write_frame(s, &pkt, ost);
506 if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
507 ost->top_field_first >= 0)
508 in_picture->top_field_first = !!ost->top_field_first;
510 in_picture->quality = enc->global_quality;
511 in_picture->pict_type = 0;
512 if (ost->forced_kf_index < ost->forced_kf_count &&
513 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
514 in_picture->pict_type = AV_PICTURE_TYPE_I;
515 ost->forced_kf_index++;
518 ost->frames_encoded++;
520 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
522 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
527 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
528 write_frame(s, &pkt, ost);
529 *frame_size = pkt.size;
531 /* if two pass, output log */
532 if (ost->logfile && enc->stats_out) {
533 fprintf(ost->logfile, "%s", enc->stats_out);
539 * For video, number of frames in == number of packets out.
540 * But there may be reordering, so we can't throw away frames on encoder
541 * flush, we need to limit them here, before they go into encoder.
546 static double psnr(double d)
548 return -10.0 * log(d) / log(10.0);
551 static void do_video_stats(OutputStream *ost, int frame_size)
555 double ti1, bitrate, avg_bitrate;
557 /* this is executed just the first time do_video_stats is called */
559 vstats_file = fopen(vstats_filename, "w");
567 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
568 frame_number = ost->frame_number;
569 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
570 ost->quality / (float)FF_QP2LAMBDA);
571 if (enc->flags&CODEC_FLAG_PSNR)
572 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
574 fprintf(vstats_file,"f_size= %6d ", frame_size);
575 /* compute pts value */
576 ti1 = ost->sync_opts * av_q2d(enc->time_base);
580 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
581 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
582 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
583 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
584 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
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 & 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)));
877 if (enc->flags&CODEC_FLAG_PSNR) {
879 double error, error_sum = 0;
880 double scale, scale_sum = 0;
881 char type[3] = { 'Y','U','V' };
882 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
883 for (j = 0; j < 3; j++) {
884 if (is_last_report) {
885 error = enc->error[j];
886 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
888 error = enc->coded_frame->error[j];
889 scale = enc->width * enc->height * 255.0 * 255.0;
895 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
897 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
901 /* compute min output value */
902 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
903 if ((pts < ti1) && (pts > 0))
909 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
911 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
912 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
913 (double)total_size / 1024, ti1, bitrate);
916 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
919 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
924 print_final_stats(total_size);
928 static void flush_encoders(void)
932 for (i = 0; i < nb_output_streams; i++) {
933 OutputStream *ost = output_streams[i];
934 AVCodecContext *enc = ost->enc_ctx;
935 AVFormatContext *os = output_files[ost->file_index]->ctx;
936 int stop_encoding = 0;
938 if (!ost->encoding_needed)
941 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
943 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
947 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
950 switch (enc->codec_type) {
951 case AVMEDIA_TYPE_AUDIO:
952 encode = avcodec_encode_audio2;
955 case AVMEDIA_TYPE_VIDEO:
956 encode = avcodec_encode_video2;
966 av_init_packet(&pkt);
970 ret = encode(enc, &pkt, NULL, &got_packet);
972 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
975 if (ost->logfile && enc->stats_out) {
976 fprintf(ost->logfile, "%s", enc->stats_out);
982 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
983 write_frame(os, &pkt, ost);
993 * Check whether a packet from ist should be written into ost at this time
995 static int check_output_constraints(InputStream *ist, OutputStream *ost)
997 OutputFile *of = output_files[ost->file_index];
998 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1000 if (ost->source_index != ist_index)
1003 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1009 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1011 OutputFile *of = output_files[ost->file_index];
1012 InputFile *f = input_files [ist->file_index];
1013 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1014 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1017 av_init_packet(&opkt);
1019 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1020 !ost->copy_initial_nonkeyframes)
1023 if (of->recording_time != INT64_MAX &&
1024 ist->last_dts >= of->recording_time + start_time) {
1029 if (f->recording_time != INT64_MAX) {
1030 start_time = f->ctx->start_time;
1031 if (f->start_time != AV_NOPTS_VALUE)
1032 start_time += f->start_time;
1033 if (ist->last_dts >= f->recording_time + start_time) {
1039 /* force the input stream PTS */
1040 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1043 if (pkt->pts != AV_NOPTS_VALUE)
1044 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1046 opkt.pts = AV_NOPTS_VALUE;
1048 if (pkt->dts == AV_NOPTS_VALUE)
1049 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1051 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1052 opkt.dts -= ost_tb_start_time;
1054 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1055 opkt.flags = pkt->flags;
1057 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1058 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1059 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1060 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1061 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1063 if (av_parser_change(ost->parser, ost->st->codec,
1064 &opkt.data, &opkt.size,
1065 pkt->data, pkt->size,
1066 pkt->flags & AV_PKT_FLAG_KEY)) {
1067 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1072 opkt.data = pkt->data;
1073 opkt.size = pkt->size;
1076 write_frame(of->ctx, &opkt, ost);
1079 int guess_input_channel_layout(InputStream *ist)
1081 AVCodecContext *dec = ist->dec_ctx;
1083 if (!dec->channel_layout) {
1084 char layout_name[256];
1086 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1087 if (!dec->channel_layout)
1089 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1090 dec->channels, dec->channel_layout);
1091 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1092 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1097 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1099 AVFrame *decoded_frame, *f;
1100 AVCodecContext *avctx = ist->dec_ctx;
1101 int i, ret, err = 0, resample_changed;
1103 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1104 return AVERROR(ENOMEM);
1105 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1106 return AVERROR(ENOMEM);
1107 decoded_frame = ist->decoded_frame;
1109 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1110 if (!*got_output || ret < 0)
1113 ist->samples_decoded += decoded_frame->nb_samples;
1114 ist->frames_decoded++;
1116 /* if the decoder provides a pts, use it instead of the last packet pts.
1117 the decoder could be delaying output by a packet or more. */
1118 if (decoded_frame->pts != AV_NOPTS_VALUE)
1119 ist->next_dts = decoded_frame->pts;
1120 else if (pkt->pts != AV_NOPTS_VALUE)
1121 decoded_frame->pts = pkt->pts;
1122 pkt->pts = AV_NOPTS_VALUE;
1124 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1125 ist->resample_channels != avctx->channels ||
1126 ist->resample_channel_layout != decoded_frame->channel_layout ||
1127 ist->resample_sample_rate != decoded_frame->sample_rate;
1128 if (resample_changed) {
1129 char layout1[64], layout2[64];
1131 if (!guess_input_channel_layout(ist)) {
1132 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1133 "layout for Input Stream #%d.%d\n", ist->file_index,
1137 decoded_frame->channel_layout = avctx->channel_layout;
1139 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1140 ist->resample_channel_layout);
1141 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1142 decoded_frame->channel_layout);
1144 av_log(NULL, AV_LOG_INFO,
1145 "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",
1146 ist->file_index, ist->st->index,
1147 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1148 ist->resample_channels, layout1,
1149 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1150 avctx->channels, layout2);
1152 ist->resample_sample_fmt = decoded_frame->format;
1153 ist->resample_sample_rate = decoded_frame->sample_rate;
1154 ist->resample_channel_layout = decoded_frame->channel_layout;
1155 ist->resample_channels = avctx->channels;
1157 for (i = 0; i < nb_filtergraphs; i++)
1158 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1159 configure_filtergraph(filtergraphs[i]) < 0) {
1160 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1165 if (decoded_frame->pts != AV_NOPTS_VALUE)
1166 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1168 (AVRational){1, avctx->sample_rate});
1169 for (i = 0; i < ist->nb_filters; i++) {
1170 if (i < ist->nb_filters - 1) {
1171 f = ist->filter_frame;
1172 err = av_frame_ref(f, decoded_frame);
1178 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1183 av_frame_unref(ist->filter_frame);
1184 av_frame_unref(decoded_frame);
1185 return err < 0 ? err : ret;
1188 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1190 AVFrame *decoded_frame, *f;
1191 int i, ret = 0, err = 0, resample_changed;
1193 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1194 return AVERROR(ENOMEM);
1195 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1196 return AVERROR(ENOMEM);
1197 decoded_frame = ist->decoded_frame;
1199 ret = avcodec_decode_video2(ist->dec_ctx,
1200 decoded_frame, got_output, pkt);
1201 if (!*got_output || ret < 0)
1204 ist->frames_decoded++;
1206 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1207 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1211 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1213 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1214 decoded_frame->pkt_dts);
1217 if (ist->st->sample_aspect_ratio.num)
1218 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1220 resample_changed = ist->resample_width != decoded_frame->width ||
1221 ist->resample_height != decoded_frame->height ||
1222 ist->resample_pix_fmt != decoded_frame->format;
1223 if (resample_changed) {
1224 av_log(NULL, AV_LOG_INFO,
1225 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1226 ist->file_index, ist->st->index,
1227 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1228 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1230 ret = poll_filters();
1231 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1233 av_strerror(ret, errbuf, sizeof(errbuf));
1235 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1238 ist->resample_width = decoded_frame->width;
1239 ist->resample_height = decoded_frame->height;
1240 ist->resample_pix_fmt = decoded_frame->format;
1242 for (i = 0; i < nb_filtergraphs; i++)
1243 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1244 configure_filtergraph(filtergraphs[i]) < 0) {
1245 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1250 for (i = 0; i < ist->nb_filters; i++) {
1251 if (i < ist->nb_filters - 1) {
1252 f = ist->filter_frame;
1253 err = av_frame_ref(f, decoded_frame);
1259 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1265 av_frame_unref(ist->filter_frame);
1266 av_frame_unref(decoded_frame);
1267 return err < 0 ? err : ret;
1270 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1272 AVSubtitle subtitle;
1273 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1274 &subtitle, got_output, pkt);
1280 ist->frames_decoded++;
1282 for (i = 0; i < nb_output_streams; i++) {
1283 OutputStream *ost = output_streams[i];
1285 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1288 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1291 avsubtitle_free(&subtitle);
1295 static int send_filter_eof(InputStream *ist)
1298 for (i = 0; i < ist->nb_filters; i++) {
1299 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1306 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1307 static void process_input_packet(InputStream *ist, const AVPacket *pkt)
1313 if (ist->next_dts == AV_NOPTS_VALUE)
1314 ist->next_dts = ist->last_dts;
1318 av_init_packet(&avpkt);
1326 if (pkt->dts != AV_NOPTS_VALUE)
1327 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1329 // while we have more to decode or while the decoder did output something on EOF
1330 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1334 ist->last_dts = ist->next_dts;
1336 if (avpkt.size && avpkt.size != pkt->size &&
1337 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
1338 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1339 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1340 ist->showed_multi_packet_warning = 1;
1343 switch (ist->dec_ctx->codec_type) {
1344 case AVMEDIA_TYPE_AUDIO:
1345 ret = decode_audio (ist, &avpkt, &got_output);
1347 case AVMEDIA_TYPE_VIDEO:
1348 ret = decode_video (ist, &avpkt, &got_output);
1350 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1351 else if (ist->st->avg_frame_rate.num)
1352 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1354 else if (ist->dec_ctx->framerate.num != 0) {
1355 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1356 ist->dec_ctx->ticks_per_frame;
1357 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1360 case AVMEDIA_TYPE_SUBTITLE:
1361 ret = transcode_subtitles(ist, &avpkt, &got_output);
1368 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1369 ist->file_index, ist->st->index);
1375 // touch data and size only if not EOF
1385 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1386 if (!pkt && ist->decoding_needed) {
1387 int ret = send_filter_eof(ist);
1389 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1394 /* handle stream copy */
1395 if (!ist->decoding_needed) {
1396 ist->last_dts = ist->next_dts;
1397 switch (ist->dec_ctx->codec_type) {
1398 case AVMEDIA_TYPE_AUDIO:
1399 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1400 ist->dec_ctx->sample_rate;
1402 case AVMEDIA_TYPE_VIDEO:
1403 if (ist->dec_ctx->framerate.num != 0) {
1404 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1405 ist->next_dts += ((int64_t)AV_TIME_BASE *
1406 ist->dec_ctx->framerate.den * ticks) /
1407 ist->dec_ctx->framerate.num;
1412 for (i = 0; pkt && i < nb_output_streams; i++) {
1413 OutputStream *ost = output_streams[i];
1415 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1418 do_streamcopy(ist, ost, pkt);
1424 static void print_sdp(void)
1428 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1432 for (i = 0; i < nb_output_files; i++)
1433 avc[i] = output_files[i]->ctx;
1435 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1436 printf("SDP:\n%s\n", sdp);
1441 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1444 for (i = 0; hwaccels[i].name; i++)
1445 if (hwaccels[i].pix_fmt == pix_fmt)
1446 return &hwaccels[i];
1450 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1452 InputStream *ist = s->opaque;
1453 const enum AVPixelFormat *p;
1456 for (p = pix_fmts; *p != -1; p++) {
1457 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1458 const HWAccel *hwaccel;
1460 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1463 hwaccel = get_hwaccel(*p);
1465 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1466 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1469 ret = hwaccel->init(s);
1471 if (ist->hwaccel_id == hwaccel->id) {
1472 av_log(NULL, AV_LOG_FATAL,
1473 "%s hwaccel requested for input stream #%d:%d, "
1474 "but cannot be initialized.\n", hwaccel->name,
1475 ist->file_index, ist->st->index);
1476 return AV_PIX_FMT_NONE;
1480 ist->active_hwaccel_id = hwaccel->id;
1481 ist->hwaccel_pix_fmt = *p;
1488 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1490 InputStream *ist = s->opaque;
1492 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1493 return ist->hwaccel_get_buffer(s, frame, flags);
1495 return avcodec_default_get_buffer2(s, frame, flags);
1498 static int init_input_stream(int ist_index, char *error, int error_len)
1501 InputStream *ist = input_streams[ist_index];
1502 if (ist->decoding_needed) {
1503 AVCodec *codec = ist->dec;
1505 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1506 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1507 return AVERROR(EINVAL);
1510 ist->dec_ctx->opaque = ist;
1511 ist->dec_ctx->get_format = get_format;
1512 ist->dec_ctx->get_buffer2 = get_buffer;
1513 ist->dec_ctx->thread_safe_callbacks = 1;
1515 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1517 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1518 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1519 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1521 if (ret == AVERROR_EXPERIMENTAL)
1522 abort_codec_experimental(codec, 0);
1524 av_strerror(ret, errbuf, sizeof(errbuf));
1526 snprintf(error, error_len,
1527 "Error while opening decoder for input stream "
1529 ist->file_index, ist->st->index, errbuf);
1532 assert_avoptions(ist->decoder_opts);
1535 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;
1536 ist->next_dts = AV_NOPTS_VALUE;
1537 init_pts_correction(&ist->pts_ctx);
1542 static InputStream *get_input_stream(OutputStream *ost)
1544 if (ost->source_index >= 0)
1545 return input_streams[ost->source_index];
1548 FilterGraph *fg = ost->filter->graph;
1551 for (i = 0; i < fg->nb_inputs; i++)
1552 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1553 return fg->inputs[i]->ist;
1559 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1563 if (ost->encoding_needed) {
1564 AVCodec *codec = ost->enc;
1565 AVCodecContext *dec = NULL;
1568 if ((ist = get_input_stream(ost)))
1570 if (dec && dec->subtitle_header) {
1571 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1572 if (!ost->enc_ctx->subtitle_header)
1573 return AVERROR(ENOMEM);
1574 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1575 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1577 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1578 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1579 av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
1581 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1582 if (ret == AVERROR_EXPERIMENTAL)
1583 abort_codec_experimental(codec, 1);
1584 snprintf(error, error_len,
1585 "Error while opening encoder for output stream #%d:%d - "
1586 "maybe incorrect parameters such as bit_rate, rate, width or height",
1587 ost->file_index, ost->index);
1590 assert_avoptions(ost->encoder_opts);
1591 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1592 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1593 "It takes bits/s as argument, not kbits/s\n");
1595 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1597 av_log(NULL, AV_LOG_FATAL,
1598 "Error initializing the output stream codec context.\n");
1602 ost->st->time_base = ost->enc_ctx->time_base;
1604 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1607 ost->st->time_base = ost->st->codec->time_base;
1613 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1614 AVCodecContext *avctx)
1620 for (p = kf; *p; p++)
1623 ost->forced_kf_count = n;
1624 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1625 if (!ost->forced_kf_pts) {
1626 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1631 for (i = 0; i < n; i++) {
1632 char *next = strchr(p, ',');
1637 t = parse_time_or_die("force_key_frames", p, 1);
1638 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1644 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1646 AVDictionaryEntry *e;
1648 uint8_t *encoder_string;
1649 int encoder_string_len;
1650 int format_flags = 0;
1652 e = av_dict_get(of->opts, "fflags", NULL, 0);
1654 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1657 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1660 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1661 encoder_string = av_mallocz(encoder_string_len);
1662 if (!encoder_string)
1665 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1666 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1667 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1668 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1669 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1672 static int transcode_init(void)
1674 int ret = 0, i, j, k;
1675 AVFormatContext *oc;
1681 /* init framerate emulation */
1682 for (i = 0; i < nb_input_files; i++) {
1683 InputFile *ifile = input_files[i];
1684 if (ifile->rate_emu)
1685 for (j = 0; j < ifile->nb_streams; j++)
1686 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1689 /* for each output stream, we compute the right encoding parameters */
1690 for (i = 0; i < nb_output_streams; i++) {
1691 AVCodecContext *enc_ctx;
1692 AVCodecContext *dec_ctx = NULL;
1693 ost = output_streams[i];
1694 oc = output_files[ost->file_index]->ctx;
1695 ist = get_input_stream(ost);
1697 if (ost->attachment_filename)
1700 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
1703 dec_ctx = ist->dec_ctx;
1705 ost->st->disposition = ist->st->disposition;
1706 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1707 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1710 if (ost->stream_copy) {
1712 uint64_t extra_size;
1714 av_assert0(ist && !ost->filter);
1716 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1718 if (extra_size > INT_MAX) {
1719 return AVERROR(EINVAL);
1722 /* if stream_copy is selected, no need to decode or encode */
1723 enc_ctx->codec_id = dec_ctx->codec_id;
1724 enc_ctx->codec_type = dec_ctx->codec_type;
1726 if (!enc_ctx->codec_tag) {
1727 if (!oc->oformat->codec_tag ||
1728 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1729 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1730 enc_ctx->codec_tag = dec_ctx->codec_tag;
1733 enc_ctx->bit_rate = dec_ctx->bit_rate;
1734 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1735 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1736 enc_ctx->field_order = dec_ctx->field_order;
1737 enc_ctx->extradata = av_mallocz(extra_size);
1738 if (!enc_ctx->extradata) {
1739 return AVERROR(ENOMEM);
1741 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1742 enc_ctx->extradata_size = dec_ctx->extradata_size;
1744 enc_ctx->time_base = dec_ctx->time_base;
1745 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1746 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1747 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1749 enc_ctx->time_base = ist->st->time_base;
1751 if (ist->st->nb_side_data) {
1752 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1753 sizeof(*ist->st->side_data));
1754 if (!ost->st->side_data)
1755 return AVERROR(ENOMEM);
1757 for (j = 0; j < ist->st->nb_side_data; j++) {
1758 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1759 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1761 sd_dst->data = av_malloc(sd_src->size);
1763 return AVERROR(ENOMEM);
1764 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1765 sd_dst->size = sd_src->size;
1766 sd_dst->type = sd_src->type;
1767 ost->st->nb_side_data++;
1771 ost->parser = av_parser_init(enc_ctx->codec_id);
1773 switch (enc_ctx->codec_type) {
1774 case AVMEDIA_TYPE_AUDIO:
1775 if (audio_volume != 256) {
1776 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1779 enc_ctx->channel_layout = dec_ctx->channel_layout;
1780 enc_ctx->sample_rate = dec_ctx->sample_rate;
1781 enc_ctx->channels = dec_ctx->channels;
1782 enc_ctx->frame_size = dec_ctx->frame_size;
1783 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1784 enc_ctx->block_align = dec_ctx->block_align;
1786 case AVMEDIA_TYPE_VIDEO:
1787 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1788 enc_ctx->width = dec_ctx->width;
1789 enc_ctx->height = dec_ctx->height;
1790 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1791 if (ost->frame_aspect_ratio)
1792 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1793 else if (ist->st->sample_aspect_ratio.num)
1794 sar = ist->st->sample_aspect_ratio;
1796 sar = dec_ctx->sample_aspect_ratio;
1797 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1799 case AVMEDIA_TYPE_SUBTITLE:
1800 enc_ctx->width = dec_ctx->width;
1801 enc_ctx->height = dec_ctx->height;
1803 case AVMEDIA_TYPE_DATA:
1804 case AVMEDIA_TYPE_ATTACHMENT:
1811 /* should only happen when a default codec is not present. */
1812 snprintf(error, sizeof(error), "Automatic encoder selection "
1813 "failed for output stream #%d:%d. Default encoder for "
1814 "format %s is probably disabled. Please choose an "
1815 "encoder manually.\n", ost->file_index, ost->index,
1817 ret = AVERROR(EINVAL);
1821 set_encoder_id(output_files[ost->file_index], ost);
1824 * We want CFR output if and only if one of those is true:
1825 * 1) user specified output framerate with -r
1826 * 2) user specified -vsync cfr
1827 * 3) output format is CFR and the user didn't force vsync to
1828 * something else than CFR
1830 * in such a case, set ost->frame_rate
1832 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1833 !ost->frame_rate.num && ist &&
1834 (video_sync_method == VSYNC_CFR ||
1835 (video_sync_method == VSYNC_AUTO &&
1836 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1837 if (ist->framerate.num)
1838 ost->frame_rate = ist->framerate;
1839 else if (ist->st->avg_frame_rate.num)
1840 ost->frame_rate = ist->st->avg_frame_rate;
1842 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1843 "for the output stream #%d:%d, but no information "
1844 "about the input framerate is available. Falling "
1845 "back to a default value of 25fps. Use the -r option "
1846 "if you want a different framerate.\n",
1847 ost->file_index, ost->index);
1848 ost->frame_rate = (AVRational){ 25, 1 };
1851 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1852 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1853 ost->frame_rate = ost->enc->supported_framerates[idx];
1858 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1859 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1861 fg = init_simple_filtergraph(ist, ost);
1862 if (configure_filtergraph(fg)) {
1863 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1868 switch (enc_ctx->codec_type) {
1869 case AVMEDIA_TYPE_AUDIO:
1870 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1871 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1872 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1873 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1874 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1876 case AVMEDIA_TYPE_VIDEO:
1877 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1879 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1880 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1881 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1882 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1883 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1884 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1885 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1887 ost->st->avg_frame_rate = ost->frame_rate;
1890 (enc_ctx->width != dec_ctx->width ||
1891 enc_ctx->height != dec_ctx->height ||
1892 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1893 enc_ctx->bits_per_raw_sample = 0;
1896 if (ost->forced_keyframes)
1897 parse_forced_key_frames(ost->forced_keyframes, ost,
1900 case AVMEDIA_TYPE_SUBTITLE:
1901 enc_ctx->time_base = (AVRational){1, 1000};
1910 /* open each encoder */
1911 for (i = 0; i < nb_output_streams; i++) {
1912 ret = init_output_stream(output_streams[i], error, sizeof(error));
1917 /* init input streams */
1918 for (i = 0; i < nb_input_streams; i++)
1919 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1922 /* discard unused programs */
1923 for (i = 0; i < nb_input_files; i++) {
1924 InputFile *ifile = input_files[i];
1925 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1926 AVProgram *p = ifile->ctx->programs[j];
1927 int discard = AVDISCARD_ALL;
1929 for (k = 0; k < p->nb_stream_indexes; k++)
1930 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1931 discard = AVDISCARD_DEFAULT;
1934 p->discard = discard;
1938 /* open files and write file headers */
1939 for (i = 0; i < nb_output_files; i++) {
1940 oc = output_files[i]->ctx;
1941 oc->interrupt_callback = int_cb;
1942 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1944 av_strerror(ret, errbuf, sizeof(errbuf));
1945 snprintf(error, sizeof(error),
1946 "Could not write header for output file #%d "
1947 "(incorrect codec parameters ?): %s",
1949 ret = AVERROR(EINVAL);
1952 assert_avoptions(output_files[i]->opts);
1953 if (strcmp(oc->oformat->name, "rtp")) {
1959 /* dump the file output parameters - cannot be done before in case
1961 for (i = 0; i < nb_output_files; i++) {
1962 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1965 /* dump the stream mapping */
1966 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1967 for (i = 0; i < nb_input_streams; i++) {
1968 ist = input_streams[i];
1970 for (j = 0; j < ist->nb_filters; j++) {
1971 if (ist->filters[j]->graph->graph_desc) {
1972 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1973 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1974 ist->filters[j]->name);
1975 if (nb_filtergraphs > 1)
1976 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1977 av_log(NULL, AV_LOG_INFO, "\n");
1982 for (i = 0; i < nb_output_streams; i++) {
1983 ost = output_streams[i];
1985 if (ost->attachment_filename) {
1986 /* an attached file */
1987 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1988 ost->attachment_filename, ost->file_index, ost->index);
1992 if (ost->filter && ost->filter->graph->graph_desc) {
1993 /* output from a complex graph */
1994 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1995 if (nb_filtergraphs > 1)
1996 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1998 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1999 ost->index, ost->enc ? ost->enc->name : "?");
2003 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2004 input_streams[ost->source_index]->file_index,
2005 input_streams[ost->source_index]->st->index,
2008 if (ost->sync_ist != input_streams[ost->source_index])
2009 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2010 ost->sync_ist->file_index,
2011 ost->sync_ist->st->index);
2012 if (ost->stream_copy)
2013 av_log(NULL, AV_LOG_INFO, " (copy)");
2015 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2016 const AVCodec *out_codec = ost->enc;
2017 const char *decoder_name = "?";
2018 const char *in_codec_name = "?";
2019 const char *encoder_name = "?";
2020 const char *out_codec_name = "?";
2021 const AVCodecDescriptor *desc;
2024 decoder_name = in_codec->name;
2025 desc = avcodec_descriptor_get(in_codec->id);
2027 in_codec_name = desc->name;
2028 if (!strcmp(decoder_name, in_codec_name))
2029 decoder_name = "native";
2033 encoder_name = out_codec->name;
2034 desc = avcodec_descriptor_get(out_codec->id);
2036 out_codec_name = desc->name;
2037 if (!strcmp(encoder_name, out_codec_name))
2038 encoder_name = "native";
2041 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2042 in_codec_name, decoder_name,
2043 out_codec_name, encoder_name);
2045 av_log(NULL, AV_LOG_INFO, "\n");
2049 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2060 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2061 static int need_output(void)
2065 for (i = 0; i < nb_output_streams; i++) {
2066 OutputStream *ost = output_streams[i];
2067 OutputFile *of = output_files[ost->file_index];
2068 AVFormatContext *os = output_files[ost->file_index]->ctx;
2070 if (ost->finished ||
2071 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2073 if (ost->frame_number >= ost->max_frames) {
2075 for (j = 0; j < of->ctx->nb_streams; j++)
2076 output_streams[of->ost_index + j]->finished = 1;
2086 static InputFile *select_input_file(void)
2088 InputFile *ifile = NULL;
2089 int64_t ipts_min = INT64_MAX;
2092 for (i = 0; i < nb_input_streams; i++) {
2093 InputStream *ist = input_streams[i];
2094 int64_t ipts = ist->last_dts;
2096 if (ist->discard || input_files[ist->file_index]->eagain)
2098 if (!input_files[ist->file_index]->eof_reached) {
2099 if (ipts < ipts_min) {
2101 ifile = input_files[ist->file_index];
2110 static void *input_thread(void *arg)
2115 while (!transcoding_finished && ret >= 0) {
2117 ret = av_read_frame(f->ctx, &pkt);
2119 if (ret == AVERROR(EAGAIN)) {
2126 pthread_mutex_lock(&f->fifo_lock);
2127 while (!av_fifo_space(f->fifo))
2128 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2130 av_dup_packet(&pkt);
2131 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2133 pthread_mutex_unlock(&f->fifo_lock);
2140 static void free_input_threads(void)
2144 if (nb_input_files == 1)
2147 transcoding_finished = 1;
2149 for (i = 0; i < nb_input_files; i++) {
2150 InputFile *f = input_files[i];
2153 if (!f->fifo || f->joined)
2156 pthread_mutex_lock(&f->fifo_lock);
2157 while (av_fifo_size(f->fifo)) {
2158 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2159 av_free_packet(&pkt);
2161 pthread_cond_signal(&f->fifo_cond);
2162 pthread_mutex_unlock(&f->fifo_lock);
2164 pthread_join(f->thread, NULL);
2167 while (av_fifo_size(f->fifo)) {
2168 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2169 av_free_packet(&pkt);
2171 av_fifo_free(f->fifo);
2175 static int init_input_threads(void)
2179 if (nb_input_files == 1)
2182 for (i = 0; i < nb_input_files; i++) {
2183 InputFile *f = input_files[i];
2185 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2186 return AVERROR(ENOMEM);
2188 pthread_mutex_init(&f->fifo_lock, NULL);
2189 pthread_cond_init (&f->fifo_cond, NULL);
2191 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2192 return AVERROR(ret);
2197 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2201 pthread_mutex_lock(&f->fifo_lock);
2203 if (av_fifo_size(f->fifo)) {
2204 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2205 pthread_cond_signal(&f->fifo_cond);
2210 ret = AVERROR(EAGAIN);
2213 pthread_mutex_unlock(&f->fifo_lock);
2219 static int get_input_packet(InputFile *f, AVPacket *pkt)
2223 for (i = 0; i < f->nb_streams; i++) {
2224 InputStream *ist = input_streams[f->ist_index + i];
2225 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2226 int64_t now = av_gettime_relative() - ist->start;
2228 return AVERROR(EAGAIN);
2233 if (nb_input_files > 1)
2234 return get_input_packet_mt(f, pkt);
2236 return av_read_frame(f->ctx, pkt);
2239 static int got_eagain(void)
2242 for (i = 0; i < nb_input_files; i++)
2243 if (input_files[i]->eagain)
2248 static void reset_eagain(void)
2251 for (i = 0; i < nb_input_files; i++)
2252 input_files[i]->eagain = 0;
2256 * Read one packet from an input file and send it for
2257 * - decoding -> lavfi (audio/video)
2258 * - decoding -> encoding -> muxing (subtitles)
2259 * - muxing (streamcopy)
2262 * - 0 -- one packet was read and processed
2263 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2264 * this function should be called again
2265 * - AVERROR_EOF -- this function should not be called again
2267 static int process_input(void)
2270 AVFormatContext *is;
2275 /* select the stream that we must read now */
2276 ifile = select_input_file();
2277 /* if none, if is finished */
2282 return AVERROR(EAGAIN);
2284 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2289 ret = get_input_packet(ifile, &pkt);
2291 if (ret == AVERROR(EAGAIN)) {
2296 if (ret != AVERROR_EOF) {
2297 print_error(is->filename, ret);
2301 ifile->eof_reached = 1;
2303 for (i = 0; i < ifile->nb_streams; i++) {
2304 ist = input_streams[ifile->ist_index + i];
2305 if (ist->decoding_needed)
2306 process_input_packet(ist, NULL);
2308 /* mark all outputs that don't go through lavfi as finished */
2309 for (j = 0; j < nb_output_streams; j++) {
2310 OutputStream *ost = output_streams[j];
2312 if (ost->source_index == ifile->ist_index + i &&
2313 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2314 finish_output_stream(ost);
2318 return AVERROR(EAGAIN);
2324 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2325 is->streams[pkt.stream_index]);
2327 /* the following test is needed in case new streams appear
2328 dynamically in stream : we ignore them */
2329 if (pkt.stream_index >= ifile->nb_streams)
2330 goto discard_packet;
2332 ist = input_streams[ifile->ist_index + pkt.stream_index];
2334 ist->data_size += pkt.size;
2338 goto discard_packet;
2340 /* add the stream-global side data to the first packet */
2341 if (ist->nb_packets == 1)
2342 for (i = 0; i < ist->st->nb_side_data; i++) {
2343 AVPacketSideData *src_sd = &ist->st->side_data[i];
2346 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2348 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2351 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2355 memcpy(dst_data, src_sd->data, src_sd->size);
2358 if (pkt.dts != AV_NOPTS_VALUE)
2359 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2360 if (pkt.pts != AV_NOPTS_VALUE)
2361 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2363 if (pkt.pts != AV_NOPTS_VALUE)
2364 pkt.pts *= ist->ts_scale;
2365 if (pkt.dts != AV_NOPTS_VALUE)
2366 pkt.dts *= ist->ts_scale;
2368 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2369 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2370 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2371 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2372 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2373 int64_t delta = pkt_dts - ist->next_dts;
2375 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2376 ifile->ts_offset -= delta;
2377 av_log(NULL, AV_LOG_DEBUG,
2378 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2379 delta, ifile->ts_offset);
2380 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2381 if (pkt.pts != AV_NOPTS_VALUE)
2382 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2386 process_input_packet(ist, &pkt);
2389 av_free_packet(&pkt);
2395 * The following code is the main loop of the file converter
2397 static int transcode(void)
2399 int ret, i, need_input = 1;
2400 AVFormatContext *os;
2403 int64_t timer_start;
2405 ret = transcode_init();
2409 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2412 timer_start = av_gettime_relative();
2415 if ((ret = init_input_threads()) < 0)
2419 while (!received_sigterm) {
2420 /* check if there's any stream where output is still needed */
2421 if (!need_output()) {
2422 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2426 /* read and process one input packet if needed */
2428 ret = process_input();
2429 if (ret == AVERROR_EOF)
2433 ret = poll_filters();
2435 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
2439 av_strerror(ret, errbuf, sizeof(errbuf));
2441 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2446 /* dump report by using the output first video and audio streams */
2447 print_report(0, timer_start);
2450 free_input_threads();
2453 /* at the end of stream, we must flush the decoder buffers */
2454 for (i = 0; i < nb_input_streams; i++) {
2455 ist = input_streams[i];
2456 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2457 process_input_packet(ist, NULL);
2465 /* write the trailer if needed and close file */
2466 for (i = 0; i < nb_output_files; i++) {
2467 os = output_files[i]->ctx;
2468 av_write_trailer(os);
2471 /* dump report by using the first video and audio streams */
2472 print_report(1, timer_start);
2474 /* close each encoder */
2475 for (i = 0; i < nb_output_streams; i++) {
2476 ost = output_streams[i];
2477 if (ost->encoding_needed) {
2478 av_freep(&ost->enc_ctx->stats_in);
2482 /* close each decoder */
2483 for (i = 0; i < nb_input_streams; i++) {
2484 ist = input_streams[i];
2485 if (ist->decoding_needed) {
2486 avcodec_close(ist->dec_ctx);
2487 if (ist->hwaccel_uninit)
2488 ist->hwaccel_uninit(ist->dec_ctx);
2497 free_input_threads();
2500 if (output_streams) {
2501 for (i = 0; i < nb_output_streams; i++) {
2502 ost = output_streams[i];
2505 fclose(ost->logfile);
2506 ost->logfile = NULL;
2508 av_free(ost->forced_kf_pts);
2509 av_dict_free(&ost->encoder_opts);
2510 av_dict_free(&ost->resample_opts);
2517 static int64_t getutime(void)
2520 struct rusage rusage;
2522 getrusage(RUSAGE_SELF, &rusage);
2523 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2524 #elif HAVE_GETPROCESSTIMES
2526 FILETIME c, e, k, u;
2527 proc = GetCurrentProcess();
2528 GetProcessTimes(proc, &c, &e, &k, &u);
2529 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2531 return av_gettime_relative();
2535 static int64_t getmaxrss(void)
2537 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2538 struct rusage rusage;
2539 getrusage(RUSAGE_SELF, &rusage);
2540 return (int64_t)rusage.ru_maxrss * 1024;
2541 #elif HAVE_GETPROCESSMEMORYINFO
2543 PROCESS_MEMORY_COUNTERS memcounters;
2544 proc = GetCurrentProcess();
2545 memcounters.cb = sizeof(memcounters);
2546 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2547 return memcounters.PeakPagefileUsage;
2553 int main(int argc, char **argv)
2558 register_exit(avconv_cleanup);
2560 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2561 parse_loglevel(argc, argv, options);
2563 avcodec_register_all();
2565 avdevice_register_all();
2567 avfilter_register_all();
2569 avformat_network_init();
2573 /* parse options and open all input/output files */
2574 ret = avconv_parse_options(argc, argv);
2578 if (nb_output_files <= 0 && nb_input_files == 0) {
2580 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2584 /* file converter / grab */
2585 if (nb_output_files <= 0) {
2586 fprintf(stderr, "At least one output file must be specified\n");
2591 if (transcode() < 0)
2593 ti = getutime() - ti;
2595 int maxrss = getmaxrss() / 1024;
2596 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);