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 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
98 InputStream **input_streams = NULL;
99 int nb_input_streams = 0;
100 InputFile **input_files = NULL;
101 int nb_input_files = 0;
103 OutputStream **output_streams = NULL;
104 int nb_output_streams = 0;
105 OutputFile **output_files = NULL;
106 int nb_output_files = 0;
108 FilterGraph **filtergraphs;
111 static void term_exit(void)
113 av_log(NULL, AV_LOG_QUIET, "");
116 static volatile int received_sigterm = 0;
117 static volatile int received_nb_signals = 0;
120 sigterm_handler(int sig)
122 received_sigterm = sig;
123 received_nb_signals++;
127 static void term_init(void)
129 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
130 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
132 signal(SIGXCPU, sigterm_handler);
136 static int decode_interrupt_cb(void *ctx)
138 return received_nb_signals > 1;
141 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
143 static void avconv_cleanup(int ret)
147 for (i = 0; i < nb_filtergraphs; i++) {
148 FilterGraph *fg = filtergraphs[i];
149 avfilter_graph_free(&fg->graph);
150 for (j = 0; j < fg->nb_inputs; j++) {
151 av_freep(&fg->inputs[j]->name);
152 av_freep(&fg->inputs[j]);
154 av_freep(&fg->inputs);
155 for (j = 0; j < fg->nb_outputs; j++) {
156 av_freep(&fg->outputs[j]->name);
157 av_freep(&fg->outputs[j]);
159 av_freep(&fg->outputs);
160 av_freep(&fg->graph_desc);
162 av_freep(&filtergraphs[i]);
164 av_freep(&filtergraphs);
167 for (i = 0; i < nb_output_files; i++) {
168 OutputFile *of = output_files[i];
169 AVFormatContext *s = of->ctx;
170 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
172 avformat_free_context(s);
173 av_dict_free(&of->opts);
175 av_freep(&output_files[i]);
177 for (i = 0; i < nb_output_streams; i++) {
178 OutputStream *ost = output_streams[i];
179 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
181 AVBitStreamFilterContext *next = bsfc->next;
182 av_bitstream_filter_close(bsfc);
185 ost->bitstream_filters = NULL;
186 av_frame_free(&ost->filtered_frame);
188 av_parser_close(ost->parser);
190 av_freep(&ost->forced_keyframes);
191 av_freep(&ost->avfilter);
192 av_freep(&ost->logfile_prefix);
194 avcodec_free_context(&ost->enc_ctx);
196 av_freep(&output_streams[i]);
198 for (i = 0; i < nb_input_files; i++) {
199 avformat_close_input(&input_files[i]->ctx);
200 av_freep(&input_files[i]);
202 for (i = 0; i < nb_input_streams; i++) {
203 InputStream *ist = input_streams[i];
205 av_frame_free(&ist->decoded_frame);
206 av_frame_free(&ist->filter_frame);
207 av_dict_free(&ist->decoder_opts);
208 av_freep(&ist->filters);
209 av_freep(&ist->hwaccel_device);
211 avcodec_free_context(&ist->dec_ctx);
213 av_freep(&input_streams[i]);
218 av_free(vstats_filename);
220 av_freep(&input_streams);
221 av_freep(&input_files);
222 av_freep(&output_streams);
223 av_freep(&output_files);
227 avformat_network_deinit();
229 if (received_sigterm) {
230 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
231 (int) received_sigterm);
236 void assert_avoptions(AVDictionary *m)
238 AVDictionaryEntry *t;
239 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
240 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
245 static void abort_codec_experimental(AVCodec *c, int encoder)
247 const char *codec_string = encoder ? "encoder" : "decoder";
249 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
250 "results.\nAdd '-strict experimental' if you want to use it.\n",
251 codec_string, c->name);
252 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
253 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
254 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
255 codec_string, codec->name);
260 * Update the requested input sample format based on the output sample format.
261 * This is currently only used to request float output from decoders which
262 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
263 * Ideally this will be removed in the future when decoders do not do format
264 * conversion and only output in their native format.
266 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
269 /* if sample formats match or a decoder sample format has already been
270 requested, just return */
271 if (enc->sample_fmt == dec->sample_fmt ||
272 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
275 /* if decoder supports more than one output format */
276 if (dec_codec && dec_codec->sample_fmts &&
277 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
278 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
279 const enum AVSampleFormat *p;
280 int min_dec = INT_MAX, min_inc = INT_MAX;
281 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
282 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
284 /* find a matching sample format in the encoder */
285 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
286 if (*p == enc->sample_fmt) {
287 dec->request_sample_fmt = *p;
290 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
291 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
292 int fmt_diff = 32 * abs(dfmt - efmt);
293 if (av_sample_fmt_is_planar(*p) !=
294 av_sample_fmt_is_planar(enc->sample_fmt))
299 } else if (dfmt > efmt) {
300 if (fmt_diff < min_inc) {
305 if (fmt_diff < min_dec) {
313 /* if none match, provide the one that matches quality closest */
314 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
318 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
320 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
321 AVCodecContext *avctx = ost->enc_ctx;
325 * Audio encoders may split the packets -- #frames in != #packets out.
326 * But there is no reordering, so we can limit the number of output packets
327 * by simply dropping them here.
328 * Counting encoded video frames needs to be done separately because of
329 * reordering, see do_video_out()
331 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
332 if (ost->frame_number >= ost->max_frames) {
340 AVPacket new_pkt = *pkt;
341 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
342 &new_pkt.data, &new_pkt.size,
343 pkt->data, pkt->size,
344 pkt->flags & AV_PKT_FLAG_KEY);
347 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
348 av_buffer_default_free, NULL, 0);
352 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
353 bsfc->filter->name, pkt->stream_index,
354 avctx->codec ? avctx->codec->name : "copy");
364 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
365 ost->last_mux_dts != AV_NOPTS_VALUE &&
366 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
367 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
368 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
369 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
371 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
374 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
375 "in incorrect timestamps in the output file.\n",
376 ost->last_mux_dts + 1);
377 pkt->dts = ost->last_mux_dts + 1;
378 if (pkt->pts != AV_NOPTS_VALUE)
379 pkt->pts = FFMAX(pkt->pts, pkt->dts);
381 ost->last_mux_dts = pkt->dts;
383 ost->data_size += pkt->size;
384 ost->packets_written++;
386 pkt->stream_index = ost->index;
387 ret = av_interleaved_write_frame(s, pkt);
389 print_error("av_interleaved_write_frame()", ret);
394 static int check_recording_time(OutputStream *ost)
396 OutputFile *of = output_files[ost->file_index];
398 if (of->recording_time != INT64_MAX &&
399 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
400 AV_TIME_BASE_Q) >= 0) {
407 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
410 AVCodecContext *enc = ost->enc_ctx;
414 av_init_packet(&pkt);
418 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
419 frame->pts = ost->sync_opts;
420 ost->sync_opts = frame->pts + frame->nb_samples;
422 ost->samples_encoded += frame->nb_samples;
423 ost->frames_encoded++;
425 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
426 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
431 if (pkt.pts != AV_NOPTS_VALUE)
432 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
433 if (pkt.dts != AV_NOPTS_VALUE)
434 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
435 if (pkt.duration > 0)
436 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
438 write_frame(s, &pkt, ost);
442 static void do_subtitle_out(AVFormatContext *s,
448 static uint8_t *subtitle_out = NULL;
449 int subtitle_out_max_size = 1024 * 1024;
450 int subtitle_out_size, nb, i;
454 if (pts == AV_NOPTS_VALUE) {
455 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
464 subtitle_out = av_malloc(subtitle_out_max_size);
467 /* Note: DVB subtitle need one packet to draw them and one other
468 packet to clear them */
469 /* XXX: signal it in the codec context ? */
470 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
475 for (i = 0; i < nb; i++) {
476 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
477 if (!check_recording_time(ost))
480 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
481 // start_display_time is required to be 0
482 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
483 sub->end_display_time -= sub->start_display_time;
484 sub->start_display_time = 0;
486 ost->frames_encoded++;
488 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
489 subtitle_out_max_size, sub);
490 if (subtitle_out_size < 0) {
491 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
495 av_init_packet(&pkt);
496 pkt.data = subtitle_out;
497 pkt.size = subtitle_out_size;
498 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
499 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
500 /* XXX: the pts correction is handled here. Maybe handling
501 it in the codec would be better */
503 pkt.pts += 90 * sub->start_display_time;
505 pkt.pts += 90 * sub->end_display_time;
507 write_frame(s, &pkt, ost);
511 static void do_video_out(AVFormatContext *s,
516 int ret, format_video_sync;
518 AVCodecContext *enc = ost->enc_ctx;
522 format_video_sync = video_sync_method;
523 if (format_video_sync == VSYNC_AUTO)
524 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
525 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
526 if (format_video_sync != VSYNC_PASSTHROUGH &&
528 in_picture->pts != AV_NOPTS_VALUE &&
529 in_picture->pts < ost->sync_opts) {
531 av_log(NULL, AV_LOG_WARNING,
532 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
533 ost->frame_number, ost->st->index, in_picture->pts);
537 if (in_picture->pts == AV_NOPTS_VALUE)
538 in_picture->pts = ost->sync_opts;
539 ost->sync_opts = in_picture->pts;
542 if (!ost->frame_number)
543 ost->first_pts = in_picture->pts;
545 av_init_packet(&pkt);
549 if (ost->frame_number >= ost->max_frames)
552 if (s->oformat->flags & AVFMT_RAWPICTURE &&
553 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
554 /* raw pictures are written as AVPicture structure to
555 avoid any copies. We support temporarily the older
557 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
558 enc->coded_frame->top_field_first = in_picture->top_field_first;
559 pkt.data = (uint8_t *)in_picture;
560 pkt.size = sizeof(AVPicture);
561 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
562 pkt.flags |= AV_PKT_FLAG_KEY;
564 write_frame(s, &pkt, ost);
568 if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
569 ost->top_field_first >= 0)
570 in_picture->top_field_first = !!ost->top_field_first;
572 in_picture->quality = enc->global_quality;
573 if (!enc->me_threshold)
574 in_picture->pict_type = 0;
575 if (ost->forced_kf_index < ost->forced_kf_count &&
576 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
577 in_picture->pict_type = AV_PICTURE_TYPE_I;
578 ost->forced_kf_index++;
581 ost->frames_encoded++;
583 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
585 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
590 if (pkt.pts != AV_NOPTS_VALUE)
591 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
592 if (pkt.dts != AV_NOPTS_VALUE)
593 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
595 write_frame(s, &pkt, ost);
596 *frame_size = pkt.size;
598 /* if two pass, output log */
599 if (ost->logfile && enc->stats_out) {
600 fprintf(ost->logfile, "%s", enc->stats_out);
606 * For video, number of frames in == number of packets out.
607 * But there may be reordering, so we can't throw away frames on encoder
608 * flush, we need to limit them here, before they go into encoder.
613 static double psnr(double d)
615 return -10.0 * log(d) / log(10.0);
618 static void do_video_stats(OutputStream *ost, int frame_size)
622 double ti1, bitrate, avg_bitrate;
624 /* this is executed just the first time do_video_stats is called */
626 vstats_file = fopen(vstats_filename, "w");
634 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
635 frame_number = ost->frame_number;
636 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
637 if (enc->flags&CODEC_FLAG_PSNR)
638 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
640 fprintf(vstats_file,"f_size= %6d ", frame_size);
641 /* compute pts value */
642 ti1 = ost->sync_opts * av_q2d(enc->time_base);
646 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
647 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
648 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
649 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
650 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
655 * Read one frame for lavfi output for ost and encode it.
657 static int poll_filter(OutputStream *ost)
659 OutputFile *of = output_files[ost->file_index];
660 AVFrame *filtered_frame = NULL;
663 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
664 return AVERROR(ENOMEM);
666 filtered_frame = ost->filtered_frame;
668 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
669 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
670 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
671 ost->enc_ctx->frame_size);
673 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
678 if (filtered_frame->pts != AV_NOPTS_VALUE) {
679 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
680 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
681 ost->filter->filter->inputs[0]->time_base,
682 ost->enc_ctx->time_base) -
683 av_rescale_q(start_time,
685 ost->enc_ctx->time_base);
688 switch (ost->filter->filter->inputs[0]->type) {
689 case AVMEDIA_TYPE_VIDEO:
690 if (!ost->frame_aspect_ratio)
691 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
693 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
694 if (vstats_filename && frame_size)
695 do_video_stats(ost, frame_size);
697 case AVMEDIA_TYPE_AUDIO:
698 do_audio_out(of->ctx, ost, filtered_frame);
701 // TODO support subtitle filters
705 av_frame_unref(filtered_frame);
711 * Read as many frames from possible from lavfi and encode them.
713 * Always read from the active stream with the lowest timestamp. If no frames
714 * are available for it then return EAGAIN and wait for more input. This way we
715 * can use lavfi sources that generate unlimited amount of frames without memory
718 static int poll_filters(void)
722 while (ret >= 0 && !received_sigterm) {
723 OutputStream *ost = NULL;
724 int64_t min_pts = INT64_MAX;
726 /* choose output stream with the lowest timestamp */
727 for (i = 0; i < nb_output_streams; i++) {
728 int64_t pts = output_streams[i]->sync_opts;
730 if (!output_streams[i]->filter || output_streams[i]->finished)
733 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
737 ost = output_streams[i];
744 ret = poll_filter(ost);
746 if (ret == AVERROR_EOF) {
747 OutputFile *of = output_files[ost->file_index];
752 for (j = 0; j < of->ctx->nb_streams; j++)
753 output_streams[of->ost_index + j]->finished = 1;
757 } else if (ret == AVERROR(EAGAIN))
764 static void print_final_stats(int64_t total_size)
766 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
767 uint64_t data_size = 0;
768 float percent = -1.0;
771 for (i = 0; i < nb_output_streams; i++) {
772 OutputStream *ost = output_streams[i];
773 switch (ost->enc_ctx->codec_type) {
774 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
775 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
776 default: other_size += ost->data_size; break;
778 extra_size += ost->enc_ctx->extradata_size;
779 data_size += ost->data_size;
782 if (data_size && total_size >= data_size)
783 percent = 100.0 * (total_size - data_size) / data_size;
785 av_log(NULL, AV_LOG_INFO, "\n");
786 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
790 extra_size / 1024.0);
792 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
794 av_log(NULL, AV_LOG_INFO, "unknown");
795 av_log(NULL, AV_LOG_INFO, "\n");
797 /* print verbose per-stream stats */
798 for (i = 0; i < nb_input_files; i++) {
799 InputFile *f = input_files[i];
800 uint64_t total_packets = 0, total_size = 0;
802 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
803 i, f->ctx->filename);
805 for (j = 0; j < f->nb_streams; j++) {
806 InputStream *ist = input_streams[f->ist_index + j];
807 enum AVMediaType type = ist->dec_ctx->codec_type;
809 total_size += ist->data_size;
810 total_packets += ist->nb_packets;
812 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
813 i, j, media_type_string(type));
814 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
815 ist->nb_packets, ist->data_size);
817 if (ist->decoding_needed) {
818 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
819 ist->frames_decoded);
820 if (type == AVMEDIA_TYPE_AUDIO)
821 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
822 av_log(NULL, AV_LOG_VERBOSE, "; ");
825 av_log(NULL, AV_LOG_VERBOSE, "\n");
828 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
829 total_packets, total_size);
832 for (i = 0; i < nb_output_files; i++) {
833 OutputFile *of = output_files[i];
834 uint64_t total_packets = 0, total_size = 0;
836 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
837 i, of->ctx->filename);
839 for (j = 0; j < of->ctx->nb_streams; j++) {
840 OutputStream *ost = output_streams[of->ost_index + j];
841 enum AVMediaType type = ost->enc_ctx->codec_type;
843 total_size += ost->data_size;
844 total_packets += ost->packets_written;
846 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
847 i, j, media_type_string(type));
848 if (ost->encoding_needed) {
849 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
850 ost->frames_encoded);
851 if (type == AVMEDIA_TYPE_AUDIO)
852 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
853 av_log(NULL, AV_LOG_VERBOSE, "; ");
856 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
857 ost->packets_written, ost->data_size);
859 av_log(NULL, AV_LOG_VERBOSE, "\n");
862 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
863 total_packets, total_size);
867 static void print_report(int is_last_report, int64_t timer_start)
874 int frame_number, vid, i;
875 double bitrate, ti1, pts;
876 static int64_t last_time = -1;
877 static int qp_histogram[52];
879 if (!print_stats && !is_last_report)
882 if (!is_last_report) {
884 /* display the report every 0.5 seconds */
885 cur_time = av_gettime();
886 if (last_time == -1) {
887 last_time = cur_time;
890 if ((cur_time - last_time) < 500000)
892 last_time = cur_time;
896 oc = output_files[0]->ctx;
898 total_size = avio_size(oc->pb);
899 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
900 total_size = avio_tell(oc->pb);
901 if (total_size < 0) {
903 av_strerror(total_size, errbuf, sizeof(errbuf));
904 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
905 "avio_tell() failed: %s\n", errbuf);
912 for (i = 0; i < nb_output_streams; i++) {
914 ost = output_streams[i];
916 if (!ost->stream_copy && enc->coded_frame)
917 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
918 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
919 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
921 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
922 float t = (av_gettime() - timer_start) / 1000000.0;
924 frame_number = ost->frame_number;
925 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
926 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
928 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
932 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
934 for (j = 0; j < 32; j++)
935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
937 if (enc->flags&CODEC_FLAG_PSNR) {
939 double error, error_sum = 0;
940 double scale, scale_sum = 0;
941 char type[3] = { 'Y','U','V' };
942 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
943 for (j = 0; j < 3; j++) {
944 if (is_last_report) {
945 error = enc->error[j];
946 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
948 error = enc->coded_frame->error[j];
949 scale = enc->width * enc->height * 255.0 * 255.0;
955 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
957 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
961 /* compute min output value */
962 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
963 if ((pts < ti1) && (pts > 0))
969 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
971 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
972 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
973 (double)total_size / 1024, ti1, bitrate);
976 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
979 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
984 print_final_stats(total_size);
988 static void flush_encoders(void)
992 for (i = 0; i < nb_output_streams; i++) {
993 OutputStream *ost = output_streams[i];
994 AVCodecContext *enc = ost->enc_ctx;
995 AVFormatContext *os = output_files[ost->file_index]->ctx;
996 int stop_encoding = 0;
998 if (!ost->encoding_needed)
1001 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1003 if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1007 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1010 switch (enc->codec_type) {
1011 case AVMEDIA_TYPE_AUDIO:
1012 encode = avcodec_encode_audio2;
1015 case AVMEDIA_TYPE_VIDEO:
1016 encode = avcodec_encode_video2;
1026 av_init_packet(&pkt);
1030 ret = encode(enc, &pkt, NULL, &got_packet);
1032 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1035 if (ost->logfile && enc->stats_out) {
1036 fprintf(ost->logfile, "%s", enc->stats_out);
1042 if (pkt.pts != AV_NOPTS_VALUE)
1043 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1044 if (pkt.dts != AV_NOPTS_VALUE)
1045 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1046 if (pkt.duration > 0)
1047 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1048 write_frame(os, &pkt, ost);
1058 * Check whether a packet from ist should be written into ost at this time
1060 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1062 OutputFile *of = output_files[ost->file_index];
1063 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1065 if (ost->source_index != ist_index)
1068 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1074 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1076 OutputFile *of = output_files[ost->file_index];
1077 InputFile *f = input_files [ist->file_index];
1078 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1079 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1082 av_init_packet(&opkt);
1084 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1085 !ost->copy_initial_nonkeyframes)
1088 if (of->recording_time != INT64_MAX &&
1089 ist->last_dts >= of->recording_time + start_time) {
1094 if (f->recording_time != INT64_MAX) {
1095 start_time = f->ctx->start_time;
1096 if (f->start_time != AV_NOPTS_VALUE)
1097 start_time += f->start_time;
1098 if (ist->last_dts >= f->recording_time + start_time) {
1104 /* force the input stream PTS */
1105 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1108 if (pkt->pts != AV_NOPTS_VALUE)
1109 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1111 opkt.pts = AV_NOPTS_VALUE;
1113 if (pkt->dts == AV_NOPTS_VALUE)
1114 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1116 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1117 opkt.dts -= ost_tb_start_time;
1119 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1120 opkt.flags = pkt->flags;
1122 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1123 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1124 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1125 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1126 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1128 if (av_parser_change(ost->parser, ost->st->codec,
1129 &opkt.data, &opkt.size,
1130 pkt->data, pkt->size,
1131 pkt->flags & AV_PKT_FLAG_KEY)) {
1132 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1137 opkt.data = pkt->data;
1138 opkt.size = pkt->size;
1141 write_frame(of->ctx, &opkt, ost);
1144 int guess_input_channel_layout(InputStream *ist)
1146 AVCodecContext *dec = ist->dec_ctx;
1148 if (!dec->channel_layout) {
1149 char layout_name[256];
1151 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1152 if (!dec->channel_layout)
1154 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1155 dec->channels, dec->channel_layout);
1156 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1157 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1162 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1164 AVFrame *decoded_frame, *f;
1165 AVCodecContext *avctx = ist->dec_ctx;
1166 int i, ret, err = 0, resample_changed;
1168 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1169 return AVERROR(ENOMEM);
1170 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1171 return AVERROR(ENOMEM);
1172 decoded_frame = ist->decoded_frame;
1174 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1175 if (!*got_output || ret < 0) {
1177 for (i = 0; i < ist->nb_filters; i++)
1178 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1183 ist->samples_decoded += decoded_frame->nb_samples;
1184 ist->frames_decoded++;
1186 /* if the decoder provides a pts, use it instead of the last packet pts.
1187 the decoder could be delaying output by a packet or more. */
1188 if (decoded_frame->pts != AV_NOPTS_VALUE)
1189 ist->next_dts = decoded_frame->pts;
1190 else if (pkt->pts != AV_NOPTS_VALUE)
1191 decoded_frame->pts = pkt->pts;
1192 pkt->pts = AV_NOPTS_VALUE;
1194 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1195 ist->resample_channels != avctx->channels ||
1196 ist->resample_channel_layout != decoded_frame->channel_layout ||
1197 ist->resample_sample_rate != decoded_frame->sample_rate;
1198 if (resample_changed) {
1199 char layout1[64], layout2[64];
1201 if (!guess_input_channel_layout(ist)) {
1202 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1203 "layout for Input Stream #%d.%d\n", ist->file_index,
1207 decoded_frame->channel_layout = avctx->channel_layout;
1209 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1210 ist->resample_channel_layout);
1211 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1212 decoded_frame->channel_layout);
1214 av_log(NULL, AV_LOG_INFO,
1215 "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",
1216 ist->file_index, ist->st->index,
1217 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1218 ist->resample_channels, layout1,
1219 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1220 avctx->channels, layout2);
1222 ist->resample_sample_fmt = decoded_frame->format;
1223 ist->resample_sample_rate = decoded_frame->sample_rate;
1224 ist->resample_channel_layout = decoded_frame->channel_layout;
1225 ist->resample_channels = avctx->channels;
1227 for (i = 0; i < nb_filtergraphs; i++)
1228 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1229 configure_filtergraph(filtergraphs[i]) < 0) {
1230 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1235 if (decoded_frame->pts != AV_NOPTS_VALUE)
1236 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1238 (AVRational){1, avctx->sample_rate});
1239 for (i = 0; i < ist->nb_filters; i++) {
1240 if (i < ist->nb_filters - 1) {
1241 f = ist->filter_frame;
1242 err = av_frame_ref(f, decoded_frame);
1248 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1253 av_frame_unref(ist->filter_frame);
1254 av_frame_unref(decoded_frame);
1255 return err < 0 ? err : ret;
1258 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1260 AVFrame *decoded_frame, *f;
1261 int i, ret = 0, err = 0, resample_changed;
1263 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1264 return AVERROR(ENOMEM);
1265 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1266 return AVERROR(ENOMEM);
1267 decoded_frame = ist->decoded_frame;
1269 ret = avcodec_decode_video2(ist->dec_ctx,
1270 decoded_frame, got_output, pkt);
1271 if (!*got_output || ret < 0) {
1273 for (i = 0; i < ist->nb_filters; i++)
1274 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1279 ist->frames_decoded++;
1281 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1282 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1286 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1288 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1289 decoded_frame->pkt_dts);
1292 if (ist->st->sample_aspect_ratio.num)
1293 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1295 resample_changed = ist->resample_width != decoded_frame->width ||
1296 ist->resample_height != decoded_frame->height ||
1297 ist->resample_pix_fmt != decoded_frame->format;
1298 if (resample_changed) {
1299 av_log(NULL, AV_LOG_INFO,
1300 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1301 ist->file_index, ist->st->index,
1302 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1303 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1305 ret = poll_filters();
1306 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1307 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1309 ist->resample_width = decoded_frame->width;
1310 ist->resample_height = decoded_frame->height;
1311 ist->resample_pix_fmt = decoded_frame->format;
1313 for (i = 0; i < nb_filtergraphs; i++)
1314 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1315 configure_filtergraph(filtergraphs[i]) < 0) {
1316 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1321 for (i = 0; i < ist->nb_filters; i++) {
1322 if (i < ist->nb_filters - 1) {
1323 f = ist->filter_frame;
1324 err = av_frame_ref(f, decoded_frame);
1330 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1336 av_frame_unref(ist->filter_frame);
1337 av_frame_unref(decoded_frame);
1338 return err < 0 ? err : ret;
1341 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1343 AVSubtitle subtitle;
1344 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1345 &subtitle, got_output, pkt);
1351 ist->frames_decoded++;
1353 for (i = 0; i < nb_output_streams; i++) {
1354 OutputStream *ost = output_streams[i];
1356 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1359 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1362 avsubtitle_free(&subtitle);
1366 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1367 static int output_packet(InputStream *ist, const AVPacket *pkt)
1373 if (ist->next_dts == AV_NOPTS_VALUE)
1374 ist->next_dts = ist->last_dts;
1378 av_init_packet(&avpkt);
1386 if (pkt->dts != AV_NOPTS_VALUE)
1387 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1389 // while we have more to decode or while the decoder did output something on EOF
1390 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1394 ist->last_dts = ist->next_dts;
1396 if (avpkt.size && avpkt.size != pkt->size &&
1397 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
1398 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1399 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1400 ist->showed_multi_packet_warning = 1;
1403 switch (ist->dec_ctx->codec_type) {
1404 case AVMEDIA_TYPE_AUDIO:
1405 ret = decode_audio (ist, &avpkt, &got_output);
1407 case AVMEDIA_TYPE_VIDEO:
1408 ret = decode_video (ist, &avpkt, &got_output);
1410 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1411 else if (ist->st->avg_frame_rate.num)
1412 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1414 else if (ist->dec_ctx->time_base.num != 0) {
1415 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1416 ist->dec_ctx->ticks_per_frame;
1417 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->time_base, AV_TIME_BASE_Q);
1420 case AVMEDIA_TYPE_SUBTITLE:
1421 ret = transcode_subtitles(ist, &avpkt, &got_output);
1429 // touch data and size only if not EOF
1439 /* handle stream copy */
1440 if (!ist->decoding_needed) {
1441 ist->last_dts = ist->next_dts;
1442 switch (ist->dec_ctx->codec_type) {
1443 case AVMEDIA_TYPE_AUDIO:
1444 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1445 ist->dec_ctx->sample_rate;
1447 case AVMEDIA_TYPE_VIDEO:
1448 if (ist->dec_ctx->time_base.num != 0) {
1449 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1450 ist->next_dts += ((int64_t)AV_TIME_BASE *
1451 ist->dec_ctx->time_base.num * ticks) /
1452 ist->dec_ctx->time_base.den;
1457 for (i = 0; pkt && i < nb_output_streams; i++) {
1458 OutputStream *ost = output_streams[i];
1460 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1463 do_streamcopy(ist, ost, pkt);
1469 static void print_sdp(void)
1473 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1477 for (i = 0; i < nb_output_files; i++)
1478 avc[i] = output_files[i]->ctx;
1480 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1481 printf("SDP:\n%s\n", sdp);
1486 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1489 for (i = 0; hwaccels[i].name; i++)
1490 if (hwaccels[i].pix_fmt == pix_fmt)
1491 return &hwaccels[i];
1495 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1497 InputStream *ist = s->opaque;
1498 const enum AVPixelFormat *p;
1501 for (p = pix_fmts; *p != -1; p++) {
1502 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1503 const HWAccel *hwaccel;
1505 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1508 hwaccel = get_hwaccel(*p);
1510 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1511 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1514 ret = hwaccel->init(s);
1516 if (ist->hwaccel_id == hwaccel->id) {
1517 av_log(NULL, AV_LOG_FATAL,
1518 "%s hwaccel requested for input stream #%d:%d, "
1519 "but cannot be initialized.\n", hwaccel->name,
1520 ist->file_index, ist->st->index);
1525 ist->active_hwaccel_id = hwaccel->id;
1526 ist->hwaccel_pix_fmt = *p;
1533 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1535 InputStream *ist = s->opaque;
1537 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1538 return ist->hwaccel_get_buffer(s, frame, flags);
1540 return avcodec_default_get_buffer2(s, frame, flags);
1543 static int init_input_stream(int ist_index, char *error, int error_len)
1546 InputStream *ist = input_streams[ist_index];
1547 if (ist->decoding_needed) {
1548 AVCodec *codec = ist->dec;
1550 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1551 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1552 return AVERROR(EINVAL);
1555 /* update requested sample format for the decoder based on the
1556 corresponding encoder sample format */
1557 for (i = 0; i < nb_output_streams; i++) {
1558 OutputStream *ost = output_streams[i];
1559 if (ost->source_index == ist_index) {
1560 update_sample_fmt(ist->dec_ctx, codec, ost->enc_ctx);
1565 ist->dec_ctx->opaque = ist;
1566 ist->dec_ctx->get_format = get_format;
1567 ist->dec_ctx->get_buffer2 = get_buffer;
1568 ist->dec_ctx->thread_safe_callbacks = 1;
1570 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1572 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1573 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1574 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1576 if (ret == AVERROR_EXPERIMENTAL)
1577 abort_codec_experimental(codec, 0);
1579 av_strerror(ret, errbuf, sizeof(errbuf));
1581 snprintf(error, error_len,
1582 "Error while opening decoder for input stream "
1584 ist->file_index, ist->st->index, errbuf);
1587 assert_avoptions(ist->decoder_opts);
1590 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;
1591 ist->next_dts = AV_NOPTS_VALUE;
1592 init_pts_correction(&ist->pts_ctx);
1597 static InputStream *get_input_stream(OutputStream *ost)
1599 if (ost->source_index >= 0)
1600 return input_streams[ost->source_index];
1603 FilterGraph *fg = ost->filter->graph;
1606 for (i = 0; i < fg->nb_inputs; i++)
1607 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1608 return fg->inputs[i]->ist;
1614 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1615 AVCodecContext *avctx)
1621 for (p = kf; *p; p++)
1624 ost->forced_kf_count = n;
1625 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1626 if (!ost->forced_kf_pts) {
1627 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1632 for (i = 0; i < n; i++) {
1633 char *next = strchr(p, ',');
1638 t = parse_time_or_die("force_key_frames", p, 1);
1639 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1645 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1647 AVDictionaryEntry *e;
1649 uint8_t *encoder_string;
1650 int encoder_string_len;
1651 int format_flags = 0;
1653 e = av_dict_get(of->opts, "fflags", NULL, 0);
1655 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1658 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1661 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1662 encoder_string = av_mallocz(encoder_string_len);
1663 if (!encoder_string)
1666 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1667 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1668 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1669 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1670 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1673 static int transcode_init(void)
1675 int ret = 0, i, j, k;
1676 AVFormatContext *oc;
1682 /* init framerate emulation */
1683 for (i = 0; i < nb_input_files; i++) {
1684 InputFile *ifile = input_files[i];
1685 if (ifile->rate_emu)
1686 for (j = 0; j < ifile->nb_streams; j++)
1687 input_streams[j + ifile->ist_index]->start = av_gettime();
1690 /* output stream init */
1691 for (i = 0; i < nb_output_files; i++) {
1692 oc = output_files[i]->ctx;
1693 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1694 av_dump_format(oc, i, oc->filename, 1);
1695 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1696 return AVERROR(EINVAL);
1700 /* init complex filtergraphs */
1701 for (i = 0; i < nb_filtergraphs; i++)
1702 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1705 /* for each output stream, we compute the right encoding parameters */
1706 for (i = 0; i < nb_output_streams; i++) {
1707 AVCodecContext *enc_ctx;
1708 AVCodecContext *dec_ctx = NULL;
1709 ost = output_streams[i];
1710 oc = output_files[ost->file_index]->ctx;
1711 ist = get_input_stream(ost);
1713 if (ost->attachment_filename)
1716 enc_ctx = ost->enc_ctx;
1719 dec_ctx = ist->dec_ctx;
1721 ost->st->disposition = ist->st->disposition;
1722 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1723 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1726 if (ost->stream_copy) {
1728 uint64_t extra_size;
1730 av_assert0(ist && !ost->filter);
1732 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1734 if (extra_size > INT_MAX) {
1735 return AVERROR(EINVAL);
1738 /* if stream_copy is selected, no need to decode or encode */
1739 enc_ctx->codec_id = dec_ctx->codec_id;
1740 enc_ctx->codec_type = dec_ctx->codec_type;
1742 if (!enc_ctx->codec_tag) {
1743 if (!oc->oformat->codec_tag ||
1744 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1745 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1746 enc_ctx->codec_tag = dec_ctx->codec_tag;
1749 enc_ctx->bit_rate = dec_ctx->bit_rate;
1750 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1751 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1752 enc_ctx->field_order = dec_ctx->field_order;
1753 enc_ctx->extradata = av_mallocz(extra_size);
1754 if (!enc_ctx->extradata) {
1755 return AVERROR(ENOMEM);
1757 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1758 enc_ctx->extradata_size = dec_ctx->extradata_size;
1760 enc_ctx->time_base = dec_ctx->time_base;
1761 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1762 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1763 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1765 enc_ctx->time_base = ist->st->time_base;
1767 ost->parser = av_parser_init(enc_ctx->codec_id);
1769 switch (enc_ctx->codec_type) {
1770 case AVMEDIA_TYPE_AUDIO:
1771 if (audio_volume != 256) {
1772 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1775 enc_ctx->channel_layout = dec_ctx->channel_layout;
1776 enc_ctx->sample_rate = dec_ctx->sample_rate;
1777 enc_ctx->channels = dec_ctx->channels;
1778 enc_ctx->frame_size = dec_ctx->frame_size;
1779 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1780 enc_ctx->block_align = dec_ctx->block_align;
1782 case AVMEDIA_TYPE_VIDEO:
1783 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1784 enc_ctx->width = dec_ctx->width;
1785 enc_ctx->height = dec_ctx->height;
1786 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1787 if (ost->frame_aspect_ratio)
1788 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1789 else if (ist->st->sample_aspect_ratio.num)
1790 sar = ist->st->sample_aspect_ratio;
1792 sar = dec_ctx->sample_aspect_ratio;
1793 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1795 case AVMEDIA_TYPE_SUBTITLE:
1796 enc_ctx->width = dec_ctx->width;
1797 enc_ctx->height = dec_ctx->height;
1799 case AVMEDIA_TYPE_DATA:
1800 case AVMEDIA_TYPE_ATTACHMENT:
1807 /* should only happen when a default codec is not present. */
1808 snprintf(error, sizeof(error), "Automatic encoder selection "
1809 "failed for output stream #%d:%d. Default encoder for "
1810 "format %s is probably disabled. Please choose an "
1811 "encoder manually.\n", ost->file_index, ost->index,
1813 ret = AVERROR(EINVAL);
1818 ist->decoding_needed = 1;
1819 ost->encoding_needed = 1;
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};
1908 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1909 char logfilename[1024];
1912 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1913 ost->logfile_prefix ? ost->logfile_prefix :
1914 DEFAULT_PASS_LOGFILENAME_PREFIX,
1916 if (!strcmp(ost->enc->name, "libx264")) {
1917 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1919 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
1920 f = fopen(logfilename, "wb");
1922 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1923 logfilename, strerror(errno));
1929 size_t logbuffer_size;
1930 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1931 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1935 enc_ctx->stats_in = logbuffer;
1942 /* open each encoder */
1943 for (i = 0; i < nb_output_streams; i++) {
1944 ost = output_streams[i];
1945 if (ost->encoding_needed) {
1946 AVCodec *codec = ost->enc;
1947 AVCodecContext *dec = NULL;
1949 if ((ist = get_input_stream(ost)))
1951 if (dec && dec->subtitle_header) {
1952 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
1953 if (!ost->enc_ctx->subtitle_header) {
1954 ret = AVERROR(ENOMEM);
1957 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1958 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
1960 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1961 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1962 av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
1964 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
1965 if (ret == AVERROR_EXPERIMENTAL)
1966 abort_codec_experimental(codec, 1);
1967 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1968 ost->file_index, ost->index);
1971 assert_avoptions(ost->encoder_opts);
1972 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
1973 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1974 "It takes bits/s as argument, not kbits/s\n");
1976 av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
1979 ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
1981 av_log(NULL, AV_LOG_FATAL,
1982 "Error initializing the output stream codec context.\n");
1987 /* init input streams */
1988 for (i = 0; i < nb_input_streams; i++)
1989 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1992 /* discard unused programs */
1993 for (i = 0; i < nb_input_files; i++) {
1994 InputFile *ifile = input_files[i];
1995 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1996 AVProgram *p = ifile->ctx->programs[j];
1997 int discard = AVDISCARD_ALL;
1999 for (k = 0; k < p->nb_stream_indexes; k++)
2000 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2001 discard = AVDISCARD_DEFAULT;
2004 p->discard = discard;
2008 /* open files and write file headers */
2009 for (i = 0; i < nb_output_files; i++) {
2010 oc = output_files[i]->ctx;
2011 oc->interrupt_callback = int_cb;
2012 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2014 av_strerror(ret, errbuf, sizeof(errbuf));
2015 snprintf(error, sizeof(error),
2016 "Could not write header for output file #%d "
2017 "(incorrect codec parameters ?): %s",
2019 ret = AVERROR(EINVAL);
2022 assert_avoptions(output_files[i]->opts);
2023 if (strcmp(oc->oformat->name, "rtp")) {
2029 /* dump the file output parameters - cannot be done before in case
2031 for (i = 0; i < nb_output_files; i++) {
2032 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2035 /* dump the stream mapping */
2036 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2037 for (i = 0; i < nb_input_streams; i++) {
2038 ist = input_streams[i];
2040 for (j = 0; j < ist->nb_filters; j++) {
2041 if (ist->filters[j]->graph->graph_desc) {
2042 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2043 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2044 ist->filters[j]->name);
2045 if (nb_filtergraphs > 1)
2046 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2047 av_log(NULL, AV_LOG_INFO, "\n");
2052 for (i = 0; i < nb_output_streams; i++) {
2053 ost = output_streams[i];
2055 if (ost->attachment_filename) {
2056 /* an attached file */
2057 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2058 ost->attachment_filename, ost->file_index, ost->index);
2062 if (ost->filter && ost->filter->graph->graph_desc) {
2063 /* output from a complex graph */
2064 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2065 if (nb_filtergraphs > 1)
2066 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2068 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2069 ost->index, ost->enc ? ost->enc->name : "?");
2073 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2074 input_streams[ost->source_index]->file_index,
2075 input_streams[ost->source_index]->st->index,
2078 if (ost->sync_ist != input_streams[ost->source_index])
2079 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2080 ost->sync_ist->file_index,
2081 ost->sync_ist->st->index);
2082 if (ost->stream_copy)
2083 av_log(NULL, AV_LOG_INFO, " (copy)");
2085 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2086 const AVCodec *out_codec = ost->enc;
2087 const char *decoder_name = "?";
2088 const char *in_codec_name = "?";
2089 const char *encoder_name = "?";
2090 const char *out_codec_name = "?";
2093 decoder_name = in_codec->name;
2094 in_codec_name = avcodec_descriptor_get(in_codec->id)->name;
2095 if (!strcmp(decoder_name, in_codec_name))
2096 decoder_name = "native";
2100 encoder_name = out_codec->name;
2101 out_codec_name = avcodec_descriptor_get(out_codec->id)->name;
2102 if (!strcmp(encoder_name, in_codec_name))
2103 encoder_name = "native";
2106 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2107 in_codec_name, decoder_name,
2108 out_codec_name, encoder_name);
2110 av_log(NULL, AV_LOG_INFO, "\n");
2114 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2125 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2126 static int need_output(void)
2130 for (i = 0; i < nb_output_streams; i++) {
2131 OutputStream *ost = output_streams[i];
2132 OutputFile *of = output_files[ost->file_index];
2133 AVFormatContext *os = output_files[ost->file_index]->ctx;
2135 if (ost->finished ||
2136 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2138 if (ost->frame_number >= ost->max_frames) {
2140 for (j = 0; j < of->ctx->nb_streams; j++)
2141 output_streams[of->ost_index + j]->finished = 1;
2151 static InputFile *select_input_file(void)
2153 InputFile *ifile = NULL;
2154 int64_t ipts_min = INT64_MAX;
2157 for (i = 0; i < nb_input_streams; i++) {
2158 InputStream *ist = input_streams[i];
2159 int64_t ipts = ist->last_dts;
2161 if (ist->discard || input_files[ist->file_index]->eagain)
2163 if (!input_files[ist->file_index]->eof_reached) {
2164 if (ipts < ipts_min) {
2166 ifile = input_files[ist->file_index];
2175 static void *input_thread(void *arg)
2180 while (!transcoding_finished && ret >= 0) {
2182 ret = av_read_frame(f->ctx, &pkt);
2184 if (ret == AVERROR(EAGAIN)) {
2191 pthread_mutex_lock(&f->fifo_lock);
2192 while (!av_fifo_space(f->fifo))
2193 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2195 av_dup_packet(&pkt);
2196 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2198 pthread_mutex_unlock(&f->fifo_lock);
2205 static void free_input_threads(void)
2209 if (nb_input_files == 1)
2212 transcoding_finished = 1;
2214 for (i = 0; i < nb_input_files; i++) {
2215 InputFile *f = input_files[i];
2218 if (!f->fifo || f->joined)
2221 pthread_mutex_lock(&f->fifo_lock);
2222 while (av_fifo_size(f->fifo)) {
2223 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2224 av_free_packet(&pkt);
2226 pthread_cond_signal(&f->fifo_cond);
2227 pthread_mutex_unlock(&f->fifo_lock);
2229 pthread_join(f->thread, NULL);
2232 while (av_fifo_size(f->fifo)) {
2233 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2234 av_free_packet(&pkt);
2236 av_fifo_free(f->fifo);
2240 static int init_input_threads(void)
2244 if (nb_input_files == 1)
2247 for (i = 0; i < nb_input_files; i++) {
2248 InputFile *f = input_files[i];
2250 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2251 return AVERROR(ENOMEM);
2253 pthread_mutex_init(&f->fifo_lock, NULL);
2254 pthread_cond_init (&f->fifo_cond, NULL);
2256 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2257 return AVERROR(ret);
2262 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2266 pthread_mutex_lock(&f->fifo_lock);
2268 if (av_fifo_size(f->fifo)) {
2269 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2270 pthread_cond_signal(&f->fifo_cond);
2275 ret = AVERROR(EAGAIN);
2278 pthread_mutex_unlock(&f->fifo_lock);
2284 static int get_input_packet(InputFile *f, AVPacket *pkt)
2288 for (i = 0; i < f->nb_streams; i++) {
2289 InputStream *ist = input_streams[f->ist_index + i];
2290 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2291 int64_t now = av_gettime() - ist->start;
2293 return AVERROR(EAGAIN);
2298 if (nb_input_files > 1)
2299 return get_input_packet_mt(f, pkt);
2301 return av_read_frame(f->ctx, pkt);
2304 static int got_eagain(void)
2307 for (i = 0; i < nb_input_files; i++)
2308 if (input_files[i]->eagain)
2313 static void reset_eagain(void)
2316 for (i = 0; i < nb_input_files; i++)
2317 input_files[i]->eagain = 0;
2321 * Read one packet from an input file and send it for
2322 * - decoding -> lavfi (audio/video)
2323 * - decoding -> encoding -> muxing (subtitles)
2324 * - muxing (streamcopy)
2327 * - 0 -- one packet was read and processed
2328 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2329 * this function should be called again
2330 * - AVERROR_EOF -- this function should not be called again
2332 static int process_input(void)
2335 AVFormatContext *is;
2340 /* select the stream that we must read now */
2341 ifile = select_input_file();
2342 /* if none, if is finished */
2347 return AVERROR(EAGAIN);
2349 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2354 ret = get_input_packet(ifile, &pkt);
2356 if (ret == AVERROR(EAGAIN)) {
2361 if (ret != AVERROR_EOF) {
2362 print_error(is->filename, ret);
2366 ifile->eof_reached = 1;
2368 for (i = 0; i < ifile->nb_streams; i++) {
2369 ist = input_streams[ifile->ist_index + i];
2370 if (ist->decoding_needed)
2371 output_packet(ist, NULL);
2373 /* mark all outputs that don't go through lavfi as finished */
2374 for (j = 0; j < nb_output_streams; j++) {
2375 OutputStream *ost = output_streams[j];
2377 if (ost->source_index == ifile->ist_index + i &&
2378 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2383 return AVERROR(EAGAIN);
2389 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2390 is->streams[pkt.stream_index]);
2392 /* the following test is needed in case new streams appear
2393 dynamically in stream : we ignore them */
2394 if (pkt.stream_index >= ifile->nb_streams)
2395 goto discard_packet;
2397 ist = input_streams[ifile->ist_index + pkt.stream_index];
2399 ist->data_size += pkt.size;
2403 goto discard_packet;
2405 /* add the stream-global side data to the first packet */
2406 if (ist->nb_packets == 1)
2407 for (i = 0; i < ist->st->nb_side_data; i++) {
2408 AVPacketSideData *src_sd = &ist->st->side_data[i];
2411 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2414 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2418 memcpy(dst_data, src_sd->data, src_sd->size);
2421 if (pkt.dts != AV_NOPTS_VALUE)
2422 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2423 if (pkt.pts != AV_NOPTS_VALUE)
2424 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2426 if (pkt.pts != AV_NOPTS_VALUE)
2427 pkt.pts *= ist->ts_scale;
2428 if (pkt.dts != AV_NOPTS_VALUE)
2429 pkt.dts *= ist->ts_scale;
2431 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2432 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2433 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2434 int64_t delta = pkt_dts - ist->next_dts;
2436 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2437 ifile->ts_offset -= delta;
2438 av_log(NULL, AV_LOG_DEBUG,
2439 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2440 delta, ifile->ts_offset);
2441 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2442 if (pkt.pts != AV_NOPTS_VALUE)
2443 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2447 ret = output_packet(ist, &pkt);
2449 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2450 ist->file_index, ist->st->index);
2456 av_free_packet(&pkt);
2462 * The following code is the main loop of the file converter
2464 static int transcode(void)
2466 int ret, i, need_input = 1;
2467 AVFormatContext *os;
2470 int64_t timer_start;
2472 ret = transcode_init();
2476 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2479 timer_start = av_gettime();
2482 if ((ret = init_input_threads()) < 0)
2486 while (!received_sigterm) {
2487 /* check if there's any stream where output is still needed */
2488 if (!need_output()) {
2489 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2493 /* read and process one input packet if needed */
2495 ret = process_input();
2496 if (ret == AVERROR_EOF)
2500 ret = poll_filters();
2502 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2505 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2509 /* dump report by using the output first video and audio streams */
2510 print_report(0, timer_start);
2513 free_input_threads();
2516 /* at the end of stream, we must flush the decoder buffers */
2517 for (i = 0; i < nb_input_streams; i++) {
2518 ist = input_streams[i];
2519 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2520 output_packet(ist, NULL);
2528 /* write the trailer if needed and close file */
2529 for (i = 0; i < nb_output_files; i++) {
2530 os = output_files[i]->ctx;
2531 av_write_trailer(os);
2534 /* dump report by using the first video and audio streams */
2535 print_report(1, timer_start);
2537 /* close each encoder */
2538 for (i = 0; i < nb_output_streams; i++) {
2539 ost = output_streams[i];
2540 if (ost->encoding_needed) {
2541 av_freep(&ost->enc_ctx->stats_in);
2545 /* close each decoder */
2546 for (i = 0; i < nb_input_streams; i++) {
2547 ist = input_streams[i];
2548 if (ist->decoding_needed) {
2549 avcodec_close(ist->dec_ctx);
2550 if (ist->hwaccel_uninit)
2551 ist->hwaccel_uninit(ist->dec_ctx);
2560 free_input_threads();
2563 if (output_streams) {
2564 for (i = 0; i < nb_output_streams; i++) {
2565 ost = output_streams[i];
2568 fclose(ost->logfile);
2569 ost->logfile = NULL;
2571 av_free(ost->forced_kf_pts);
2572 av_dict_free(&ost->encoder_opts);
2573 av_dict_free(&ost->resample_opts);
2580 static int64_t getutime(void)
2583 struct rusage rusage;
2585 getrusage(RUSAGE_SELF, &rusage);
2586 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2587 #elif HAVE_GETPROCESSTIMES
2589 FILETIME c, e, k, u;
2590 proc = GetCurrentProcess();
2591 GetProcessTimes(proc, &c, &e, &k, &u);
2592 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2594 return av_gettime();
2598 static int64_t getmaxrss(void)
2600 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2601 struct rusage rusage;
2602 getrusage(RUSAGE_SELF, &rusage);
2603 return (int64_t)rusage.ru_maxrss * 1024;
2604 #elif HAVE_GETPROCESSMEMORYINFO
2606 PROCESS_MEMORY_COUNTERS memcounters;
2607 proc = GetCurrentProcess();
2608 memcounters.cb = sizeof(memcounters);
2609 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2610 return memcounters.PeakPagefileUsage;
2616 int main(int argc, char **argv)
2621 register_exit(avconv_cleanup);
2623 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2624 parse_loglevel(argc, argv, options);
2626 avcodec_register_all();
2628 avdevice_register_all();
2630 avfilter_register_all();
2632 avformat_network_init();
2636 /* parse options and open all input/output files */
2637 ret = avconv_parse_options(argc, argv);
2641 if (nb_output_files <= 0 && nb_input_files == 0) {
2643 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2647 /* file converter / grab */
2648 if (nb_output_files <= 0) {
2649 fprintf(stderr, "At least one output file must be specified\n");
2654 if (transcode() < 0)
2656 ti = getutime() - ti;
2658 int maxrss = getmaxrss() / 1024;
2659 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);