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) {
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;
285 AVPacket new_pkt = *pkt;
286 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
287 &new_pkt.data, &new_pkt.size,
288 pkt->data, pkt->size,
289 pkt->flags & AV_PKT_FLAG_KEY);
292 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
293 av_buffer_default_free, NULL, 0);
297 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
298 bsfc->filter->name, pkt->stream_index,
299 avctx->codec ? avctx->codec->name : "copy");
309 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
310 ost->last_mux_dts != AV_NOPTS_VALUE &&
311 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
312 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
313 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
314 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
316 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
319 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
320 "in incorrect timestamps in the output file.\n",
321 ost->last_mux_dts + 1);
322 pkt->dts = ost->last_mux_dts + 1;
323 if (pkt->pts != AV_NOPTS_VALUE)
324 pkt->pts = FFMAX(pkt->pts, pkt->dts);
326 ost->last_mux_dts = pkt->dts;
328 ost->data_size += pkt->size;
329 ost->packets_written++;
331 pkt->stream_index = ost->index;
332 ret = av_interleaved_write_frame(s, pkt);
334 print_error("av_interleaved_write_frame()", ret);
339 static int check_recording_time(OutputStream *ost)
341 OutputFile *of = output_files[ost->file_index];
343 if (of->recording_time != INT64_MAX &&
344 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
345 AV_TIME_BASE_Q) >= 0) {
352 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
355 AVCodecContext *enc = ost->enc_ctx;
359 av_init_packet(&pkt);
363 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
364 frame->pts = ost->sync_opts;
365 ost->sync_opts = frame->pts + frame->nb_samples;
367 ost->samples_encoded += frame->nb_samples;
368 ost->frames_encoded++;
370 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
371 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
376 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
377 write_frame(s, &pkt, ost);
381 static void do_subtitle_out(AVFormatContext *s,
387 static uint8_t *subtitle_out = NULL;
388 int subtitle_out_max_size = 1024 * 1024;
389 int subtitle_out_size, nb, i;
393 if (pts == AV_NOPTS_VALUE) {
394 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
403 subtitle_out = av_malloc(subtitle_out_max_size);
406 /* Note: DVB subtitle need one packet to draw them and one other
407 packet to clear them */
408 /* XXX: signal it in the codec context ? */
409 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
414 for (i = 0; i < nb; i++) {
415 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
416 if (!check_recording_time(ost))
419 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
420 // start_display_time is required to be 0
421 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
422 sub->end_display_time -= sub->start_display_time;
423 sub->start_display_time = 0;
425 ost->frames_encoded++;
427 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
428 subtitle_out_max_size, sub);
429 if (subtitle_out_size < 0) {
430 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
434 av_init_packet(&pkt);
435 pkt.data = subtitle_out;
436 pkt.size = subtitle_out_size;
437 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
438 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
439 /* XXX: the pts correction is handled here. Maybe handling
440 it in the codec would be better */
442 pkt.pts += 90 * sub->start_display_time;
444 pkt.pts += 90 * sub->end_display_time;
446 write_frame(s, &pkt, ost);
450 static void do_video_out(AVFormatContext *s,
455 int ret, format_video_sync;
457 AVCodecContext *enc = ost->enc_ctx;
461 format_video_sync = video_sync_method;
462 if (format_video_sync == VSYNC_AUTO)
463 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
464 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
465 if (format_video_sync != VSYNC_PASSTHROUGH &&
467 in_picture->pts != AV_NOPTS_VALUE &&
468 in_picture->pts < ost->sync_opts) {
470 av_log(NULL, AV_LOG_WARNING,
471 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
472 ost->frame_number, ost->st->index, in_picture->pts);
476 if (in_picture->pts == AV_NOPTS_VALUE)
477 in_picture->pts = ost->sync_opts;
478 ost->sync_opts = in_picture->pts;
481 if (!ost->frame_number)
482 ost->first_pts = in_picture->pts;
484 av_init_packet(&pkt);
488 if (ost->frame_number >= ost->max_frames)
491 if (s->oformat->flags & AVFMT_RAWPICTURE &&
492 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
493 /* raw pictures are written as AVPicture structure to
494 avoid any copies. We support temporarily the older
496 #if FF_API_CODED_FRAME
497 FF_DISABLE_DEPRECATION_WARNINGS
498 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
499 enc->coded_frame->top_field_first = in_picture->top_field_first;
500 FF_ENABLE_DEPRECATION_WARNINGS
502 pkt.data = (uint8_t *)in_picture;
503 pkt.size = sizeof(AVPicture);
504 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
505 pkt.flags |= AV_PKT_FLAG_KEY;
507 write_frame(s, &pkt, ost);
511 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
512 ost->top_field_first >= 0)
513 in_picture->top_field_first = !!ost->top_field_first;
515 in_picture->quality = enc->global_quality;
516 in_picture->pict_type = 0;
517 if (ost->forced_kf_index < ost->forced_kf_count &&
518 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
519 in_picture->pict_type = AV_PICTURE_TYPE_I;
520 ost->forced_kf_index++;
523 ost->frames_encoded++;
525 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
527 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
532 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
533 write_frame(s, &pkt, ost);
534 *frame_size = pkt.size;
536 /* if two pass, output log */
537 if (ost->logfile && enc->stats_out) {
538 fprintf(ost->logfile, "%s", enc->stats_out);
544 * For video, number of frames in == number of packets out.
545 * But there may be reordering, so we can't throw away frames on encoder
546 * flush, we need to limit them here, before they go into encoder.
551 static double psnr(double d)
553 return -10.0 * log(d) / log(10.0);
556 static void do_video_stats(OutputStream *ost, int frame_size)
560 double ti1, bitrate, avg_bitrate;
562 /* this is executed just the first time do_video_stats is called */
564 vstats_file = fopen(vstats_filename, "w");
572 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
573 frame_number = ost->frame_number;
574 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
575 ost->quality / (float)FF_QP2LAMBDA);
577 #if FF_API_CODED_FRAME
578 FF_DISABLE_DEPRECATION_WARNINGS
579 if (enc->flags & AV_CODEC_FLAG_PSNR)
580 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
581 FF_ENABLE_DEPRECATION_WARNINGS
584 fprintf(vstats_file,"f_size= %6d ", frame_size);
585 /* compute pts value */
586 ti1 = ost->sync_opts * av_q2d(enc->time_base);
590 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
591 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
592 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
593 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
594 #if FF_API_CODED_FRAME
595 FF_DISABLE_DEPRECATION_WARNINGS
596 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
597 FF_ENABLE_DEPRECATION_WARNINGS
603 * Read one frame for lavfi output for ost and encode it.
605 static int poll_filter(OutputStream *ost)
607 OutputFile *of = output_files[ost->file_index];
608 AVFrame *filtered_frame = NULL;
611 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
612 return AVERROR(ENOMEM);
614 filtered_frame = ost->filtered_frame;
616 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
617 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
618 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
619 ost->enc_ctx->frame_size);
621 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
626 if (filtered_frame->pts != AV_NOPTS_VALUE) {
627 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
628 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
629 ost->filter->filter->inputs[0]->time_base,
630 ost->enc_ctx->time_base) -
631 av_rescale_q(start_time,
633 ost->enc_ctx->time_base);
636 switch (ost->filter->filter->inputs[0]->type) {
637 case AVMEDIA_TYPE_VIDEO:
638 if (!ost->frame_aspect_ratio)
639 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
641 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
642 if (vstats_filename && frame_size)
643 do_video_stats(ost, frame_size);
645 case AVMEDIA_TYPE_AUDIO:
646 do_audio_out(of->ctx, ost, filtered_frame);
649 // TODO support subtitle filters
653 av_frame_unref(filtered_frame);
658 static void finish_output_stream(OutputStream *ost)
660 OutputFile *of = output_files[ost->file_index];
666 for (i = 0; i < of->ctx->nb_streams; i++)
667 output_streams[of->ost_index + i]->finished = 1;
672 * Read as many frames from possible from lavfi and encode them.
674 * Always read from the active stream with the lowest timestamp. If no frames
675 * are available for it then return EAGAIN and wait for more input. This way we
676 * can use lavfi sources that generate unlimited amount of frames without memory
679 static int poll_filters(void)
683 while (ret >= 0 && !received_sigterm) {
684 OutputStream *ost = NULL;
685 int64_t min_pts = INT64_MAX;
687 /* choose output stream with the lowest timestamp */
688 for (i = 0; i < nb_output_streams; i++) {
689 int64_t pts = output_streams[i]->sync_opts;
691 if (!output_streams[i]->filter || output_streams[i]->finished)
694 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
698 ost = output_streams[i];
705 ret = poll_filter(ost);
707 if (ret == AVERROR_EOF) {
708 finish_output_stream(ost);
710 } else if (ret == AVERROR(EAGAIN))
717 static void print_final_stats(int64_t total_size)
719 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
720 uint64_t data_size = 0;
721 float percent = -1.0;
724 for (i = 0; i < nb_output_streams; i++) {
725 OutputStream *ost = output_streams[i];
726 switch (ost->enc_ctx->codec_type) {
727 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
728 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
729 default: other_size += ost->data_size; break;
731 extra_size += ost->enc_ctx->extradata_size;
732 data_size += ost->data_size;
735 if (data_size && total_size >= data_size)
736 percent = 100.0 * (total_size - data_size) / data_size;
738 av_log(NULL, AV_LOG_INFO, "\n");
739 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
743 extra_size / 1024.0);
745 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
747 av_log(NULL, AV_LOG_INFO, "unknown");
748 av_log(NULL, AV_LOG_INFO, "\n");
750 /* print verbose per-stream stats */
751 for (i = 0; i < nb_input_files; i++) {
752 InputFile *f = input_files[i];
753 uint64_t total_packets = 0, total_size = 0;
755 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
756 i, f->ctx->filename);
758 for (j = 0; j < f->nb_streams; j++) {
759 InputStream *ist = input_streams[f->ist_index + j];
760 enum AVMediaType type = ist->dec_ctx->codec_type;
762 total_size += ist->data_size;
763 total_packets += ist->nb_packets;
765 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
766 i, j, media_type_string(type));
767 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
768 ist->nb_packets, ist->data_size);
770 if (ist->decoding_needed) {
771 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
772 ist->frames_decoded);
773 if (type == AVMEDIA_TYPE_AUDIO)
774 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
775 av_log(NULL, AV_LOG_VERBOSE, "; ");
778 av_log(NULL, AV_LOG_VERBOSE, "\n");
781 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
782 total_packets, total_size);
785 for (i = 0; i < nb_output_files; i++) {
786 OutputFile *of = output_files[i];
787 uint64_t total_packets = 0, total_size = 0;
789 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
790 i, of->ctx->filename);
792 for (j = 0; j < of->ctx->nb_streams; j++) {
793 OutputStream *ost = output_streams[of->ost_index + j];
794 enum AVMediaType type = ost->enc_ctx->codec_type;
796 total_size += ost->data_size;
797 total_packets += ost->packets_written;
799 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
800 i, j, media_type_string(type));
801 if (ost->encoding_needed) {
802 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
803 ost->frames_encoded);
804 if (type == AVMEDIA_TYPE_AUDIO)
805 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
806 av_log(NULL, AV_LOG_VERBOSE, "; ");
809 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
810 ost->packets_written, ost->data_size);
812 av_log(NULL, AV_LOG_VERBOSE, "\n");
815 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
816 total_packets, total_size);
820 static void print_report(int is_last_report, int64_t timer_start)
827 int frame_number, vid, i;
828 double bitrate, ti1, pts;
829 static int64_t last_time = -1;
830 static int qp_histogram[52];
832 if (!print_stats && !is_last_report)
835 if (!is_last_report) {
837 /* display the report every 0.5 seconds */
838 cur_time = av_gettime_relative();
839 if (last_time == -1) {
840 last_time = cur_time;
843 if ((cur_time - last_time) < 500000)
845 last_time = cur_time;
849 oc = output_files[0]->ctx;
851 total_size = avio_size(oc->pb);
852 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
853 total_size = avio_tell(oc->pb);
854 if (total_size < 0) {
856 av_strerror(total_size, errbuf, sizeof(errbuf));
857 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
858 "avio_tell() failed: %s\n", errbuf);
865 for (i = 0; i < nb_output_streams; i++) {
867 ost = output_streams[i];
869 if (!ost->stream_copy)
870 q = ost->quality / (float) FF_QP2LAMBDA;
872 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
873 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
875 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
876 float t = (av_gettime_relative() - timer_start) / 1000000.0;
878 frame_number = ost->frame_number;
879 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
880 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
882 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
886 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
888 for (j = 0; j < 32; j++)
889 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
892 #if FF_API_CODED_FRAME
893 FF_DISABLE_DEPRECATION_WARNINGS
894 if (enc->flags & AV_CODEC_FLAG_PSNR) {
896 double error, error_sum = 0;
897 double scale, scale_sum = 0;
898 char type[3] = { 'Y','U','V' };
899 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
900 for (j = 0; j < 3; j++) {
901 if (is_last_report) {
902 error = enc->error[j];
903 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
905 error = enc->coded_frame->error[j];
906 scale = enc->width * enc->height * 255.0 * 255.0;
912 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
914 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
916 FF_ENABLE_DEPRECATION_WARNINGS
920 /* compute min output value */
921 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
922 if ((pts < ti1) && (pts > 0))
928 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
930 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
931 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
932 (double)total_size / 1024, ti1, bitrate);
935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
938 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
943 print_final_stats(total_size);
947 static void flush_encoders(void)
951 for (i = 0; i < nb_output_streams; i++) {
952 OutputStream *ost = output_streams[i];
953 AVCodecContext *enc = ost->enc_ctx;
954 AVFormatContext *os = output_files[ost->file_index]->ctx;
955 int stop_encoding = 0;
957 if (!ost->encoding_needed)
960 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
962 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
966 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
969 switch (enc->codec_type) {
970 case AVMEDIA_TYPE_AUDIO:
971 encode = avcodec_encode_audio2;
974 case AVMEDIA_TYPE_VIDEO:
975 encode = avcodec_encode_video2;
985 av_init_packet(&pkt);
989 ret = encode(enc, &pkt, NULL, &got_packet);
991 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
994 if (ost->logfile && enc->stats_out) {
995 fprintf(ost->logfile, "%s", enc->stats_out);
1001 av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
1002 write_frame(os, &pkt, ost);
1012 * Check whether a packet from ist should be written into ost at this time
1014 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1016 OutputFile *of = output_files[ost->file_index];
1017 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1019 if (ost->source_index != ist_index)
1022 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1028 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1030 OutputFile *of = output_files[ost->file_index];
1031 InputFile *f = input_files [ist->file_index];
1032 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1033 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1036 av_init_packet(&opkt);
1038 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1039 !ost->copy_initial_nonkeyframes)
1042 if (of->recording_time != INT64_MAX &&
1043 ist->last_dts >= of->recording_time + start_time) {
1048 if (f->recording_time != INT64_MAX) {
1049 start_time = f->ctx->start_time;
1050 if (f->start_time != AV_NOPTS_VALUE)
1051 start_time += f->start_time;
1052 if (ist->last_dts >= f->recording_time + start_time) {
1058 /* force the input stream PTS */
1059 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1062 if (pkt->pts != AV_NOPTS_VALUE)
1063 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1065 opkt.pts = AV_NOPTS_VALUE;
1067 if (pkt->dts == AV_NOPTS_VALUE)
1068 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1070 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1071 opkt.dts -= ost_tb_start_time;
1073 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1074 opkt.flags = pkt->flags;
1076 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1077 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1078 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1079 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1080 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1082 if (av_parser_change(ost->parser, ost->st->codec,
1083 &opkt.data, &opkt.size,
1084 pkt->data, pkt->size,
1085 pkt->flags & AV_PKT_FLAG_KEY)) {
1086 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1091 opkt.data = pkt->data;
1092 opkt.size = pkt->size;
1095 write_frame(of->ctx, &opkt, ost);
1098 int guess_input_channel_layout(InputStream *ist)
1100 AVCodecContext *dec = ist->dec_ctx;
1102 if (!dec->channel_layout) {
1103 char layout_name[256];
1105 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1106 if (!dec->channel_layout)
1108 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1109 dec->channels, dec->channel_layout);
1110 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1111 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1116 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1118 AVFrame *decoded_frame, *f;
1119 AVCodecContext *avctx = ist->dec_ctx;
1120 int i, ret, err = 0, resample_changed;
1122 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1123 return AVERROR(ENOMEM);
1124 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1125 return AVERROR(ENOMEM);
1126 decoded_frame = ist->decoded_frame;
1128 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1129 if (!*got_output || ret < 0)
1132 ist->samples_decoded += decoded_frame->nb_samples;
1133 ist->frames_decoded++;
1135 /* if the decoder provides a pts, use it instead of the last packet pts.
1136 the decoder could be delaying output by a packet or more. */
1137 if (decoded_frame->pts != AV_NOPTS_VALUE)
1138 ist->next_dts = decoded_frame->pts;
1139 else if (pkt->pts != AV_NOPTS_VALUE)
1140 decoded_frame->pts = pkt->pts;
1141 pkt->pts = AV_NOPTS_VALUE;
1143 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1144 ist->resample_channels != avctx->channels ||
1145 ist->resample_channel_layout != decoded_frame->channel_layout ||
1146 ist->resample_sample_rate != decoded_frame->sample_rate;
1147 if (resample_changed) {
1148 char layout1[64], layout2[64];
1150 if (!guess_input_channel_layout(ist)) {
1151 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1152 "layout for Input Stream #%d.%d\n", ist->file_index,
1156 decoded_frame->channel_layout = avctx->channel_layout;
1158 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1159 ist->resample_channel_layout);
1160 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1161 decoded_frame->channel_layout);
1163 av_log(NULL, AV_LOG_INFO,
1164 "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",
1165 ist->file_index, ist->st->index,
1166 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1167 ist->resample_channels, layout1,
1168 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1169 avctx->channels, layout2);
1171 ist->resample_sample_fmt = decoded_frame->format;
1172 ist->resample_sample_rate = decoded_frame->sample_rate;
1173 ist->resample_channel_layout = decoded_frame->channel_layout;
1174 ist->resample_channels = avctx->channels;
1176 for (i = 0; i < nb_filtergraphs; i++)
1177 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1178 configure_filtergraph(filtergraphs[i]) < 0) {
1179 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1184 if (decoded_frame->pts != AV_NOPTS_VALUE)
1185 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1187 (AVRational){1, avctx->sample_rate});
1188 for (i = 0; i < ist->nb_filters; i++) {
1189 if (i < ist->nb_filters - 1) {
1190 f = ist->filter_frame;
1191 err = av_frame_ref(f, decoded_frame);
1197 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1202 av_frame_unref(ist->filter_frame);
1203 av_frame_unref(decoded_frame);
1204 return err < 0 ? err : ret;
1207 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1209 AVFrame *decoded_frame, *f;
1210 int i, ret = 0, err = 0, resample_changed;
1212 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1213 return AVERROR(ENOMEM);
1214 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1215 return AVERROR(ENOMEM);
1216 decoded_frame = ist->decoded_frame;
1218 ret = avcodec_decode_video2(ist->dec_ctx,
1219 decoded_frame, got_output, pkt);
1220 if (!*got_output || ret < 0)
1223 ist->frames_decoded++;
1225 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1226 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1230 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1232 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1233 decoded_frame->pkt_dts);
1236 if (ist->st->sample_aspect_ratio.num)
1237 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1239 resample_changed = ist->resample_width != decoded_frame->width ||
1240 ist->resample_height != decoded_frame->height ||
1241 ist->resample_pix_fmt != decoded_frame->format;
1242 if (resample_changed) {
1243 av_log(NULL, AV_LOG_INFO,
1244 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1245 ist->file_index, ist->st->index,
1246 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1247 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1249 ret = poll_filters();
1250 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN))) {
1252 av_strerror(ret, errbuf, sizeof(errbuf));
1254 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1257 ist->resample_width = decoded_frame->width;
1258 ist->resample_height = decoded_frame->height;
1259 ist->resample_pix_fmt = decoded_frame->format;
1261 for (i = 0; i < nb_filtergraphs; i++)
1262 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1263 configure_filtergraph(filtergraphs[i]) < 0) {
1264 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1269 for (i = 0; i < ist->nb_filters; i++) {
1270 if (i < ist->nb_filters - 1) {
1271 f = ist->filter_frame;
1272 err = av_frame_ref(f, decoded_frame);
1278 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1284 av_frame_unref(ist->filter_frame);
1285 av_frame_unref(decoded_frame);
1286 return err < 0 ? err : ret;
1289 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1291 AVSubtitle subtitle;
1292 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1293 &subtitle, got_output, pkt);
1299 ist->frames_decoded++;
1301 for (i = 0; i < nb_output_streams; i++) {
1302 OutputStream *ost = output_streams[i];
1304 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1307 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1310 avsubtitle_free(&subtitle);
1314 static int send_filter_eof(InputStream *ist)
1317 for (i = 0; i < ist->nb_filters; i++) {
1318 ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1325 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1326 static void process_input_packet(InputStream *ist, const AVPacket *pkt)
1332 if (ist->next_dts == AV_NOPTS_VALUE)
1333 ist->next_dts = ist->last_dts;
1337 av_init_packet(&avpkt);
1345 if (pkt->dts != AV_NOPTS_VALUE)
1346 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1348 // while we have more to decode or while the decoder did output something on EOF
1349 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1353 ist->last_dts = ist->next_dts;
1355 if (avpkt.size && avpkt.size != pkt->size &&
1356 !(ist->dec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
1357 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1358 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1359 ist->showed_multi_packet_warning = 1;
1362 switch (ist->dec_ctx->codec_type) {
1363 case AVMEDIA_TYPE_AUDIO:
1364 ret = decode_audio (ist, &avpkt, &got_output);
1366 case AVMEDIA_TYPE_VIDEO:
1367 ret = decode_video (ist, &avpkt, &got_output);
1369 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1370 else if (ist->st->avg_frame_rate.num)
1371 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1373 else if (ist->dec_ctx->framerate.num != 0) {
1374 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1375 ist->dec_ctx->ticks_per_frame;
1376 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1379 case AVMEDIA_TYPE_SUBTITLE:
1380 ret = transcode_subtitles(ist, &avpkt, &got_output);
1387 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1388 ist->file_index, ist->st->index);
1394 // touch data and size only if not EOF
1404 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1405 if (!pkt && ist->decoding_needed) {
1406 int ret = send_filter_eof(ist);
1408 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1413 /* handle stream copy */
1414 if (!ist->decoding_needed) {
1415 ist->last_dts = ist->next_dts;
1416 switch (ist->dec_ctx->codec_type) {
1417 case AVMEDIA_TYPE_AUDIO:
1418 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1419 ist->dec_ctx->sample_rate;
1421 case AVMEDIA_TYPE_VIDEO:
1422 if (ist->dec_ctx->framerate.num != 0) {
1423 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1424 ist->next_dts += ((int64_t)AV_TIME_BASE *
1425 ist->dec_ctx->framerate.den * ticks) /
1426 ist->dec_ctx->framerate.num;
1431 for (i = 0; pkt && i < nb_output_streams; i++) {
1432 OutputStream *ost = output_streams[i];
1434 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1437 do_streamcopy(ist, ost, pkt);
1443 static void print_sdp(void)
1447 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1451 for (i = 0; i < nb_output_files; i++)
1452 avc[i] = output_files[i]->ctx;
1454 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1455 printf("SDP:\n%s\n", sdp);
1460 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1463 for (i = 0; hwaccels[i].name; i++)
1464 if (hwaccels[i].pix_fmt == pix_fmt)
1465 return &hwaccels[i];
1469 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1471 InputStream *ist = s->opaque;
1472 const enum AVPixelFormat *p;
1475 for (p = pix_fmts; *p != -1; p++) {
1476 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1477 const HWAccel *hwaccel;
1479 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1482 hwaccel = get_hwaccel(*p);
1484 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1485 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1488 ret = hwaccel->init(s);
1490 if (ist->hwaccel_id == hwaccel->id) {
1491 av_log(NULL, AV_LOG_FATAL,
1492 "%s hwaccel requested for input stream #%d:%d, "
1493 "but cannot be initialized.\n", hwaccel->name,
1494 ist->file_index, ist->st->index);
1495 return AV_PIX_FMT_NONE;
1499 ist->active_hwaccel_id = hwaccel->id;
1500 ist->hwaccel_pix_fmt = *p;
1507 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1509 InputStream *ist = s->opaque;
1511 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1512 return ist->hwaccel_get_buffer(s, frame, flags);
1514 return avcodec_default_get_buffer2(s, frame, flags);
1517 static int init_input_stream(int ist_index, char *error, int error_len)
1520 InputStream *ist = input_streams[ist_index];
1521 if (ist->decoding_needed) {
1522 AVCodec *codec = ist->dec;
1524 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1525 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1526 return AVERROR(EINVAL);
1529 ist->dec_ctx->opaque = ist;
1530 ist->dec_ctx->get_format = get_format;
1531 ist->dec_ctx->get_buffer2 = get_buffer;
1532 ist->dec_ctx->thread_safe_callbacks = 1;
1534 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1536 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1537 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1538 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1540 if (ret == AVERROR_EXPERIMENTAL)
1541 abort_codec_experimental(codec, 0);
1543 av_strerror(ret, errbuf, sizeof(errbuf));
1545 snprintf(error, error_len,
1546 "Error while opening decoder for input stream "
1548 ist->file_index, ist->st->index, errbuf);
1551 assert_avoptions(ist->decoder_opts);
1554 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;
1555 ist->next_dts = AV_NOPTS_VALUE;
1556 init_pts_correction(&ist->pts_ctx);
1561 static InputStream *get_input_stream(OutputStream *ost)
1563 if (ost->source_index >= 0)
1564 return input_streams[ost->source_index];
1567 FilterGraph *fg = ost->filter->graph;
1570 for (i = 0; i < fg->nb_inputs; i++)
1571 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1572 return fg->inputs[i]->ist;
1578 static int init_output_stream(OutputStream *ost, char *error, int error_len)
1582 if (ost->encoding_needed) {
1583 AVCodec *codec = ost->enc;
1584 AVCodecContext *dec = NULL;
1587 if ((ist = get_input_stream(ost)))
1589 if (dec && dec->subtitle_header) {
1590 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1591 if (!ost->enc_ctx->subtitle_header)
1592 return AVERROR(ENOMEM);
1593 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1594 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1596 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1597 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1598 av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
1600 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1601 if (ret == AVERROR_EXPERIMENTAL)
1602 abort_codec_experimental(codec, 1);
1603 snprintf(error, error_len,
1604 "Error while opening encoder for output stream #%d:%d - "
1605 "maybe incorrect parameters such as bit_rate, rate, width or height",
1606 ost->file_index, ost->index);
1609 assert_avoptions(ost->encoder_opts);
1610 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1611 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1612 "It takes bits/s as argument, not kbits/s\n");
1614 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1616 av_log(NULL, AV_LOG_FATAL,
1617 "Error initializing the output stream codec context.\n");
1621 ost->st->time_base = ost->enc_ctx->time_base;
1623 ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1626 ost->st->time_base = ost->st->codec->time_base;
1632 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1633 AVCodecContext *avctx)
1639 for (p = kf; *p; p++)
1642 ost->forced_kf_count = n;
1643 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1644 if (!ost->forced_kf_pts) {
1645 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1650 for (i = 0; i < n; i++) {
1651 char *next = strchr(p, ',');
1656 t = parse_time_or_die("force_key_frames", p, 1);
1657 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1663 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1665 AVDictionaryEntry *e;
1667 uint8_t *encoder_string;
1668 int encoder_string_len;
1669 int format_flags = 0;
1671 e = av_dict_get(of->opts, "fflags", NULL, 0);
1673 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1676 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1679 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1680 encoder_string = av_mallocz(encoder_string_len);
1681 if (!encoder_string)
1684 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1685 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1686 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1687 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1688 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1691 static int transcode_init(void)
1693 int ret = 0, i, j, k;
1694 AVFormatContext *oc;
1700 /* init framerate emulation */
1701 for (i = 0; i < nb_input_files; i++) {
1702 InputFile *ifile = input_files[i];
1703 if (ifile->rate_emu)
1704 for (j = 0; j < ifile->nb_streams; j++)
1705 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
1708 /* for each output stream, we compute the right encoding parameters */
1709 for (i = 0; i < nb_output_streams; i++) {
1710 AVCodecContext *enc_ctx;
1711 AVCodecContext *dec_ctx = NULL;
1712 ost = output_streams[i];
1713 oc = output_files[ost->file_index]->ctx;
1714 ist = get_input_stream(ost);
1716 if (ost->attachment_filename)
1719 enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
1722 dec_ctx = ist->dec_ctx;
1724 ost->st->disposition = ist->st->disposition;
1725 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1726 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1729 if (ost->stream_copy) {
1731 uint64_t extra_size;
1733 av_assert0(ist && !ost->filter);
1735 extra_size = (uint64_t)dec_ctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
1737 if (extra_size > INT_MAX) {
1738 return AVERROR(EINVAL);
1741 /* if stream_copy is selected, no need to decode or encode */
1742 enc_ctx->codec_id = dec_ctx->codec_id;
1743 enc_ctx->codec_type = dec_ctx->codec_type;
1745 if (!enc_ctx->codec_tag) {
1746 if (!oc->oformat->codec_tag ||
1747 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1748 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1749 enc_ctx->codec_tag = dec_ctx->codec_tag;
1752 enc_ctx->bit_rate = dec_ctx->bit_rate;
1753 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1754 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1755 enc_ctx->field_order = dec_ctx->field_order;
1756 enc_ctx->extradata = av_mallocz(extra_size);
1757 if (!enc_ctx->extradata) {
1758 return AVERROR(ENOMEM);
1760 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1761 enc_ctx->extradata_size = dec_ctx->extradata_size;
1763 enc_ctx->time_base = dec_ctx->time_base;
1764 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1765 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1766 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1768 enc_ctx->time_base = ist->st->time_base;
1770 if (ist->st->nb_side_data) {
1771 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1772 sizeof(*ist->st->side_data));
1773 if (!ost->st->side_data)
1774 return AVERROR(ENOMEM);
1776 for (j = 0; j < ist->st->nb_side_data; j++) {
1777 const AVPacketSideData *sd_src = &ist->st->side_data[j];
1778 AVPacketSideData *sd_dst = &ost->st->side_data[j];
1780 sd_dst->data = av_malloc(sd_src->size);
1782 return AVERROR(ENOMEM);
1783 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1784 sd_dst->size = sd_src->size;
1785 sd_dst->type = sd_src->type;
1786 ost->st->nb_side_data++;
1790 ost->parser = av_parser_init(enc_ctx->codec_id);
1792 switch (enc_ctx->codec_type) {
1793 case AVMEDIA_TYPE_AUDIO:
1794 if (audio_volume != 256) {
1795 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1798 enc_ctx->channel_layout = dec_ctx->channel_layout;
1799 enc_ctx->sample_rate = dec_ctx->sample_rate;
1800 enc_ctx->channels = dec_ctx->channels;
1801 enc_ctx->frame_size = dec_ctx->frame_size;
1802 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1803 enc_ctx->block_align = dec_ctx->block_align;
1805 case AVMEDIA_TYPE_VIDEO:
1806 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1807 enc_ctx->width = dec_ctx->width;
1808 enc_ctx->height = dec_ctx->height;
1809 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1810 if (ost->frame_aspect_ratio)
1811 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1812 else if (ist->st->sample_aspect_ratio.num)
1813 sar = ist->st->sample_aspect_ratio;
1815 sar = dec_ctx->sample_aspect_ratio;
1816 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1818 case AVMEDIA_TYPE_SUBTITLE:
1819 enc_ctx->width = dec_ctx->width;
1820 enc_ctx->height = dec_ctx->height;
1822 case AVMEDIA_TYPE_DATA:
1823 case AVMEDIA_TYPE_ATTACHMENT:
1830 /* should only happen when a default codec is not present. */
1831 snprintf(error, sizeof(error), "Automatic encoder selection "
1832 "failed for output stream #%d:%d. Default encoder for "
1833 "format %s is probably disabled. Please choose an "
1834 "encoder manually.\n", ost->file_index, ost->index,
1836 ret = AVERROR(EINVAL);
1840 set_encoder_id(output_files[ost->file_index], ost);
1843 * We want CFR output if and only if one of those is true:
1844 * 1) user specified output framerate with -r
1845 * 2) user specified -vsync cfr
1846 * 3) output format is CFR and the user didn't force vsync to
1847 * something else than CFR
1849 * in such a case, set ost->frame_rate
1851 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1852 !ost->frame_rate.num && ist &&
1853 (video_sync_method == VSYNC_CFR ||
1854 (video_sync_method == VSYNC_AUTO &&
1855 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1856 if (ist->framerate.num)
1857 ost->frame_rate = ist->framerate;
1858 else if (ist->st->avg_frame_rate.num)
1859 ost->frame_rate = ist->st->avg_frame_rate;
1861 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1862 "for the output stream #%d:%d, but no information "
1863 "about the input framerate is available. Falling "
1864 "back to a default value of 25fps. Use the -r option "
1865 "if you want a different framerate.\n",
1866 ost->file_index, ost->index);
1867 ost->frame_rate = (AVRational){ 25, 1 };
1870 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1871 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1872 ost->frame_rate = ost->enc->supported_framerates[idx];
1877 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1878 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1880 fg = init_simple_filtergraph(ist, ost);
1881 if (configure_filtergraph(fg)) {
1882 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1887 switch (enc_ctx->codec_type) {
1888 case AVMEDIA_TYPE_AUDIO:
1889 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1890 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1891 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1892 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1893 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1895 case AVMEDIA_TYPE_VIDEO:
1896 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1898 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1899 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1900 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1901 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1902 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1903 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1904 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1906 ost->st->avg_frame_rate = ost->frame_rate;
1909 (enc_ctx->width != dec_ctx->width ||
1910 enc_ctx->height != dec_ctx->height ||
1911 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1912 enc_ctx->bits_per_raw_sample = 0;
1915 if (ost->forced_keyframes)
1916 parse_forced_key_frames(ost->forced_keyframes, ost,
1919 case AVMEDIA_TYPE_SUBTITLE:
1920 enc_ctx->time_base = (AVRational){1, 1000};
1929 /* open each encoder */
1930 for (i = 0; i < nb_output_streams; i++) {
1931 ret = init_output_stream(output_streams[i], error, sizeof(error));
1936 /* init input streams */
1937 for (i = 0; i < nb_input_streams; i++)
1938 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1941 /* discard unused programs */
1942 for (i = 0; i < nb_input_files; i++) {
1943 InputFile *ifile = input_files[i];
1944 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1945 AVProgram *p = ifile->ctx->programs[j];
1946 int discard = AVDISCARD_ALL;
1948 for (k = 0; k < p->nb_stream_indexes; k++)
1949 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1950 discard = AVDISCARD_DEFAULT;
1953 p->discard = discard;
1957 /* open files and write file headers */
1958 for (i = 0; i < nb_output_files; i++) {
1959 oc = output_files[i]->ctx;
1960 oc->interrupt_callback = int_cb;
1961 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1963 av_strerror(ret, errbuf, sizeof(errbuf));
1964 snprintf(error, sizeof(error),
1965 "Could not write header for output file #%d "
1966 "(incorrect codec parameters ?): %s",
1968 ret = AVERROR(EINVAL);
1971 assert_avoptions(output_files[i]->opts);
1972 if (strcmp(oc->oformat->name, "rtp")) {
1978 /* dump the file output parameters - cannot be done before in case
1980 for (i = 0; i < nb_output_files; i++) {
1981 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1984 /* dump the stream mapping */
1985 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1986 for (i = 0; i < nb_input_streams; i++) {
1987 ist = input_streams[i];
1989 for (j = 0; j < ist->nb_filters; j++) {
1990 if (ist->filters[j]->graph->graph_desc) {
1991 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1992 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1993 ist->filters[j]->name);
1994 if (nb_filtergraphs > 1)
1995 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1996 av_log(NULL, AV_LOG_INFO, "\n");
2001 for (i = 0; i < nb_output_streams; i++) {
2002 ost = output_streams[i];
2004 if (ost->attachment_filename) {
2005 /* an attached file */
2006 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2007 ost->attachment_filename, ost->file_index, ost->index);
2011 if (ost->filter && ost->filter->graph->graph_desc) {
2012 /* output from a complex graph */
2013 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2014 if (nb_filtergraphs > 1)
2015 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2017 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2018 ost->index, ost->enc ? ost->enc->name : "?");
2022 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2023 input_streams[ost->source_index]->file_index,
2024 input_streams[ost->source_index]->st->index,
2027 if (ost->sync_ist != input_streams[ost->source_index])
2028 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2029 ost->sync_ist->file_index,
2030 ost->sync_ist->st->index);
2031 if (ost->stream_copy)
2032 av_log(NULL, AV_LOG_INFO, " (copy)");
2034 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2035 const AVCodec *out_codec = ost->enc;
2036 const char *decoder_name = "?";
2037 const char *in_codec_name = "?";
2038 const char *encoder_name = "?";
2039 const char *out_codec_name = "?";
2040 const AVCodecDescriptor *desc;
2043 decoder_name = in_codec->name;
2044 desc = avcodec_descriptor_get(in_codec->id);
2046 in_codec_name = desc->name;
2047 if (!strcmp(decoder_name, in_codec_name))
2048 decoder_name = "native";
2052 encoder_name = out_codec->name;
2053 desc = avcodec_descriptor_get(out_codec->id);
2055 out_codec_name = desc->name;
2056 if (!strcmp(encoder_name, out_codec_name))
2057 encoder_name = "native";
2060 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2061 in_codec_name, decoder_name,
2062 out_codec_name, encoder_name);
2064 av_log(NULL, AV_LOG_INFO, "\n");
2068 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2079 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2080 static int need_output(void)
2084 for (i = 0; i < nb_output_streams; i++) {
2085 OutputStream *ost = output_streams[i];
2086 OutputFile *of = output_files[ost->file_index];
2087 AVFormatContext *os = output_files[ost->file_index]->ctx;
2089 if (ost->finished ||
2090 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2092 if (ost->frame_number >= ost->max_frames) {
2094 for (j = 0; j < of->ctx->nb_streams; j++)
2095 output_streams[of->ost_index + j]->finished = 1;
2105 static InputFile *select_input_file(void)
2107 InputFile *ifile = NULL;
2108 int64_t ipts_min = INT64_MAX;
2111 for (i = 0; i < nb_input_streams; i++) {
2112 InputStream *ist = input_streams[i];
2113 int64_t ipts = ist->last_dts;
2115 if (ist->discard || input_files[ist->file_index]->eagain)
2117 if (!input_files[ist->file_index]->eof_reached) {
2118 if (ipts < ipts_min) {
2120 ifile = input_files[ist->file_index];
2129 static void *input_thread(void *arg)
2134 while (!transcoding_finished && ret >= 0) {
2136 ret = av_read_frame(f->ctx, &pkt);
2138 if (ret == AVERROR(EAGAIN)) {
2145 pthread_mutex_lock(&f->fifo_lock);
2146 while (!av_fifo_space(f->fifo))
2147 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2149 av_dup_packet(&pkt);
2150 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2152 pthread_mutex_unlock(&f->fifo_lock);
2159 static void free_input_threads(void)
2163 if (nb_input_files == 1)
2166 transcoding_finished = 1;
2168 for (i = 0; i < nb_input_files; i++) {
2169 InputFile *f = input_files[i];
2172 if (!f->fifo || f->joined)
2175 pthread_mutex_lock(&f->fifo_lock);
2176 while (av_fifo_size(f->fifo)) {
2177 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2178 av_free_packet(&pkt);
2180 pthread_cond_signal(&f->fifo_cond);
2181 pthread_mutex_unlock(&f->fifo_lock);
2183 pthread_join(f->thread, NULL);
2186 while (av_fifo_size(f->fifo)) {
2187 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2188 av_free_packet(&pkt);
2190 av_fifo_free(f->fifo);
2194 static int init_input_threads(void)
2198 if (nb_input_files == 1)
2201 for (i = 0; i < nb_input_files; i++) {
2202 InputFile *f = input_files[i];
2204 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2205 return AVERROR(ENOMEM);
2207 pthread_mutex_init(&f->fifo_lock, NULL);
2208 pthread_cond_init (&f->fifo_cond, NULL);
2210 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2211 return AVERROR(ret);
2216 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2220 pthread_mutex_lock(&f->fifo_lock);
2222 if (av_fifo_size(f->fifo)) {
2223 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2224 pthread_cond_signal(&f->fifo_cond);
2229 ret = AVERROR(EAGAIN);
2232 pthread_mutex_unlock(&f->fifo_lock);
2238 static int get_input_packet(InputFile *f, AVPacket *pkt)
2242 for (i = 0; i < f->nb_streams; i++) {
2243 InputStream *ist = input_streams[f->ist_index + i];
2244 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2245 int64_t now = av_gettime_relative() - ist->start;
2247 return AVERROR(EAGAIN);
2252 if (nb_input_files > 1)
2253 return get_input_packet_mt(f, pkt);
2255 return av_read_frame(f->ctx, pkt);
2258 static int got_eagain(void)
2261 for (i = 0; i < nb_input_files; i++)
2262 if (input_files[i]->eagain)
2267 static void reset_eagain(void)
2270 for (i = 0; i < nb_input_files; i++)
2271 input_files[i]->eagain = 0;
2275 * Read one packet from an input file and send it for
2276 * - decoding -> lavfi (audio/video)
2277 * - decoding -> encoding -> muxing (subtitles)
2278 * - muxing (streamcopy)
2281 * - 0 -- one packet was read and processed
2282 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2283 * this function should be called again
2284 * - AVERROR_EOF -- this function should not be called again
2286 static int process_input(void)
2289 AVFormatContext *is;
2294 /* select the stream that we must read now */
2295 ifile = select_input_file();
2296 /* if none, if is finished */
2301 return AVERROR(EAGAIN);
2303 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2308 ret = get_input_packet(ifile, &pkt);
2310 if (ret == AVERROR(EAGAIN)) {
2315 if (ret != AVERROR_EOF) {
2316 print_error(is->filename, ret);
2320 ifile->eof_reached = 1;
2322 for (i = 0; i < ifile->nb_streams; i++) {
2323 ist = input_streams[ifile->ist_index + i];
2324 if (ist->decoding_needed)
2325 process_input_packet(ist, NULL);
2327 /* mark all outputs that don't go through lavfi as finished */
2328 for (j = 0; j < nb_output_streams; j++) {
2329 OutputStream *ost = output_streams[j];
2331 if (ost->source_index == ifile->ist_index + i &&
2332 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2333 finish_output_stream(ost);
2337 return AVERROR(EAGAIN);
2343 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2344 is->streams[pkt.stream_index]);
2346 /* the following test is needed in case new streams appear
2347 dynamically in stream : we ignore them */
2348 if (pkt.stream_index >= ifile->nb_streams)
2349 goto discard_packet;
2351 ist = input_streams[ifile->ist_index + pkt.stream_index];
2353 ist->data_size += pkt.size;
2357 goto discard_packet;
2359 /* add the stream-global side data to the first packet */
2360 if (ist->nb_packets == 1)
2361 for (i = 0; i < ist->st->nb_side_data; i++) {
2362 AVPacketSideData *src_sd = &ist->st->side_data[i];
2365 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2367 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2370 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2374 memcpy(dst_data, src_sd->data, src_sd->size);
2377 if (pkt.dts != AV_NOPTS_VALUE)
2378 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2379 if (pkt.pts != AV_NOPTS_VALUE)
2380 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2382 if (pkt.pts != AV_NOPTS_VALUE)
2383 pkt.pts *= ist->ts_scale;
2384 if (pkt.dts != AV_NOPTS_VALUE)
2385 pkt.dts *= ist->ts_scale;
2387 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2388 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2389 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2390 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2391 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2392 int64_t delta = pkt_dts - ist->next_dts;
2394 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2395 ifile->ts_offset -= delta;
2396 av_log(NULL, AV_LOG_DEBUG,
2397 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2398 delta, ifile->ts_offset);
2399 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2400 if (pkt.pts != AV_NOPTS_VALUE)
2401 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2405 process_input_packet(ist, &pkt);
2408 av_free_packet(&pkt);
2414 * The following code is the main loop of the file converter
2416 static int transcode(void)
2418 int ret, i, need_input = 1;
2419 AVFormatContext *os;
2422 int64_t timer_start;
2424 ret = transcode_init();
2428 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2431 timer_start = av_gettime_relative();
2434 if ((ret = init_input_threads()) < 0)
2438 while (!received_sigterm) {
2439 /* check if there's any stream where output is still needed */
2440 if (!need_output()) {
2441 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2445 /* read and process one input packet if needed */
2447 ret = process_input();
2448 if (ret == AVERROR_EOF)
2452 ret = poll_filters();
2454 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
2458 av_strerror(ret, errbuf, sizeof(errbuf));
2460 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2465 /* dump report by using the output first video and audio streams */
2466 print_report(0, timer_start);
2469 free_input_threads();
2472 /* at the end of stream, we must flush the decoder buffers */
2473 for (i = 0; i < nb_input_streams; i++) {
2474 ist = input_streams[i];
2475 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2476 process_input_packet(ist, NULL);
2484 /* write the trailer if needed and close file */
2485 for (i = 0; i < nb_output_files; i++) {
2486 os = output_files[i]->ctx;
2487 av_write_trailer(os);
2490 /* dump report by using the first video and audio streams */
2491 print_report(1, timer_start);
2493 /* close each encoder */
2494 for (i = 0; i < nb_output_streams; i++) {
2495 ost = output_streams[i];
2496 if (ost->encoding_needed) {
2497 av_freep(&ost->enc_ctx->stats_in);
2501 /* close each decoder */
2502 for (i = 0; i < nb_input_streams; i++) {
2503 ist = input_streams[i];
2504 if (ist->decoding_needed) {
2505 avcodec_close(ist->dec_ctx);
2506 if (ist->hwaccel_uninit)
2507 ist->hwaccel_uninit(ist->dec_ctx);
2516 free_input_threads();
2519 if (output_streams) {
2520 for (i = 0; i < nb_output_streams; i++) {
2521 ost = output_streams[i];
2524 fclose(ost->logfile);
2525 ost->logfile = NULL;
2527 av_free(ost->forced_kf_pts);
2528 av_dict_free(&ost->encoder_opts);
2529 av_dict_free(&ost->resample_opts);
2536 static int64_t getutime(void)
2539 struct rusage rusage;
2541 getrusage(RUSAGE_SELF, &rusage);
2542 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2543 #elif HAVE_GETPROCESSTIMES
2545 FILETIME c, e, k, u;
2546 proc = GetCurrentProcess();
2547 GetProcessTimes(proc, &c, &e, &k, &u);
2548 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2550 return av_gettime_relative();
2554 static int64_t getmaxrss(void)
2556 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2557 struct rusage rusage;
2558 getrusage(RUSAGE_SELF, &rusage);
2559 return (int64_t)rusage.ru_maxrss * 1024;
2560 #elif HAVE_GETPROCESSMEMORYINFO
2562 PROCESS_MEMORY_COUNTERS memcounters;
2563 proc = GetCurrentProcess();
2564 memcounters.cb = sizeof(memcounters);
2565 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2566 return memcounters.PeakPagefileUsage;
2572 int main(int argc, char **argv)
2577 register_exit(avconv_cleanup);
2579 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2580 parse_loglevel(argc, argv, options);
2582 avcodec_register_all();
2584 avdevice_register_all();
2586 avfilter_register_all();
2588 avformat_network_init();
2592 /* parse options and open all input/output files */
2593 ret = avconv_parse_options(argc, argv);
2597 if (nb_output_files <= 0 && nb_input_files == 0) {
2599 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2603 /* file converter / grab */
2604 if (nb_output_files <= 0) {
2605 fprintf(stderr, "At least one output file must be specified\n");
2610 if (transcode() < 0)
2612 ti = getutime() - ti;
2614 int maxrss = getmaxrss() / 1024;
2615 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);