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
30 #include "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavresample/avresample.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/audioconvert.h"
36 #include "libavutil/parseutils.h"
37 #include "libavutil/samplefmt.h"
38 #include "libavutil/colorspace.h"
39 #include "libavutil/fifo.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/time.h"
48 #include "libavformat/os_support.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
61 #if HAVE_GETPROCESSMEMORYINFO
67 #include <sys/select.h>
79 #include "libavutil/avassert.h"
81 const char program_name[] = "avconv";
82 const int program_birth_year = 2000;
84 static FILE *vstats_file;
86 static int64_t video_size = 0;
87 static int64_t audio_size = 0;
88 static int64_t extra_size = 0;
89 static int nb_frames_dup = 0;
90 static int nb_frames_drop = 0;
95 /* signal to input threads that they should exit; set by the main thread */
96 static int transcoding_finished;
99 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
101 InputStream **input_streams = NULL;
102 int nb_input_streams = 0;
103 InputFile **input_files = NULL;
104 int nb_input_files = 0;
106 OutputStream **output_streams = NULL;
107 int nb_output_streams = 0;
108 OutputFile **output_files = NULL;
109 int nb_output_files = 0;
111 FilterGraph **filtergraphs;
114 static void term_exit(void)
116 av_log(NULL, AV_LOG_QUIET, "");
119 static volatile int received_sigterm = 0;
120 static volatile int received_nb_signals = 0;
123 sigterm_handler(int sig)
125 received_sigterm = sig;
126 received_nb_signals++;
130 static void term_init(void)
132 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
133 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
135 signal(SIGXCPU, sigterm_handler);
139 static int decode_interrupt_cb(void *ctx)
141 return received_nb_signals > 1;
144 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
146 void exit_program(int ret)
150 for (i = 0; i < nb_filtergraphs; i++) {
151 avfilter_graph_free(&filtergraphs[i]->graph);
152 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
153 av_freep(&filtergraphs[i]->inputs[j]->name);
154 av_freep(&filtergraphs[i]->inputs[j]);
156 av_freep(&filtergraphs[i]->inputs);
157 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
158 av_freep(&filtergraphs[i]->outputs[j]->name);
159 av_freep(&filtergraphs[i]->outputs[j]);
161 av_freep(&filtergraphs[i]->outputs);
162 av_freep(&filtergraphs[i]);
164 av_freep(&filtergraphs);
167 for (i = 0; i < nb_output_files; i++) {
168 AVFormatContext *s = output_files[i]->ctx;
169 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
171 avformat_free_context(s);
172 av_dict_free(&output_files[i]->opts);
173 av_freep(&output_files[i]);
175 for (i = 0; i < nb_output_streams; i++) {
176 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
178 AVBitStreamFilterContext *next = bsfc->next;
179 av_bitstream_filter_close(bsfc);
182 output_streams[i]->bitstream_filters = NULL;
184 av_freep(&output_streams[i]->forced_keyframes);
185 av_freep(&output_streams[i]->avfilter);
186 av_freep(&output_streams[i]->filtered_frame);
187 av_freep(&output_streams[i]);
189 for (i = 0; i < nb_input_files; i++) {
190 avformat_close_input(&input_files[i]->ctx);
191 av_freep(&input_files[i]);
193 for (i = 0; i < nb_input_streams; i++) {
194 av_freep(&input_streams[i]->decoded_frame);
195 av_dict_free(&input_streams[i]->opts);
196 free_buffer_pool(&input_streams[i]->buffer_pool);
197 av_freep(&input_streams[i]->filters);
198 av_freep(&input_streams[i]);
203 av_free(vstats_filename);
205 av_freep(&input_streams);
206 av_freep(&input_files);
207 av_freep(&output_streams);
208 av_freep(&output_files);
213 avformat_network_deinit();
215 if (received_sigterm) {
216 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
217 (int) received_sigterm);
224 void assert_avoptions(AVDictionary *m)
226 AVDictionaryEntry *t;
227 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
228 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
233 static void assert_codec_experimental(AVCodecContext *c, int encoder)
235 const char *codec_string = encoder ? "encoder" : "decoder";
237 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
238 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
239 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
240 "results.\nAdd '-strict experimental' if you want to use it.\n",
241 codec_string, c->codec->name);
242 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
243 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
244 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
245 codec_string, codec->name);
251 * Update the requested input sample format based on the output sample format.
252 * This is currently only used to request float output from decoders which
253 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
254 * Ideally this will be removed in the future when decoders do not do format
255 * conversion and only output in their native format.
257 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
260 /* if sample formats match or a decoder sample format has already been
261 requested, just return */
262 if (enc->sample_fmt == dec->sample_fmt ||
263 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
266 /* if decoder supports more than one output format */
267 if (dec_codec && dec_codec->sample_fmts &&
268 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
269 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
270 const enum AVSampleFormat *p;
271 int min_dec = -1, min_inc = -1;
273 /* find a matching sample format in the encoder */
274 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
275 if (*p == enc->sample_fmt) {
276 dec->request_sample_fmt = *p;
278 } else if (*p > enc->sample_fmt) {
279 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
281 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
284 /* if none match, provide the one that matches quality closest */
285 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
286 enc->sample_fmt - min_dec;
290 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
292 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
293 AVCodecContext *avctx = ost->st->codec;
297 * Audio encoders may split the packets -- #frames in != #packets out.
298 * But there is no reordering, so we can limit the number of output packets
299 * by simply dropping them here.
300 * Counting encoded video frames needs to be done separately because of
301 * reordering, see do_video_out()
303 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
304 if (ost->frame_number >= ost->max_frames) {
312 AVPacket new_pkt = *pkt;
313 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
314 &new_pkt.data, &new_pkt.size,
315 pkt->data, pkt->size,
316 pkt->flags & AV_PKT_FLAG_KEY);
319 new_pkt.destruct = av_destruct_packet;
321 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
322 bsfc->filter->name, pkt->stream_index,
323 avctx->codec ? avctx->codec->name : "copy");
333 pkt->stream_index = ost->index;
334 ret = av_interleaved_write_frame(s, pkt);
336 print_error("av_interleaved_write_frame()", ret);
341 static int check_recording_time(OutputStream *ost)
343 OutputFile *of = output_files[ost->file_index];
345 if (of->recording_time != INT64_MAX &&
346 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
347 AV_TIME_BASE_Q) >= 0) {
348 ost->is_past_recording_time = 1;
354 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
357 AVCodecContext *enc = ost->st->codec;
361 av_init_packet(&pkt);
365 if (!check_recording_time(ost))
368 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
369 frame->pts = ost->sync_opts;
370 ost->sync_opts = frame->pts + frame->nb_samples;
372 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
373 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
378 if (pkt.pts != AV_NOPTS_VALUE)
379 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
380 if (pkt.dts != AV_NOPTS_VALUE)
381 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
382 if (pkt.duration > 0)
383 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
385 write_frame(s, &pkt, ost);
387 audio_size += pkt.size;
391 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
395 AVPicture picture_tmp;
398 dec = ist->st->codec;
400 /* deinterlace : must be done before any resize */
401 if (do_deinterlace) {
404 /* create temporary picture */
405 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
406 buf = av_malloc(size);
410 picture2 = &picture_tmp;
411 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
413 if (avpicture_deinterlace(picture2, picture,
414 dec->pix_fmt, dec->width, dec->height) < 0) {
415 /* if error, do not deinterlace */
416 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
425 if (picture != picture2)
426 *picture = *picture2;
430 static void do_subtitle_out(AVFormatContext *s,
436 static uint8_t *subtitle_out = NULL;
437 int subtitle_out_max_size = 1024 * 1024;
438 int subtitle_out_size, nb, i;
442 if (pts == AV_NOPTS_VALUE) {
443 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
449 enc = ost->st->codec;
452 subtitle_out = av_malloc(subtitle_out_max_size);
455 /* Note: DVB subtitle need one packet to draw them and one other
456 packet to clear them */
457 /* XXX: signal it in the codec context ? */
458 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
463 for (i = 0; i < nb; i++) {
464 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
465 if (!check_recording_time(ost))
468 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
469 // start_display_time is required to be 0
470 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
471 sub->end_display_time -= sub->start_display_time;
472 sub->start_display_time = 0;
473 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
474 subtitle_out_max_size, sub);
475 if (subtitle_out_size < 0) {
476 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
480 av_init_packet(&pkt);
481 pkt.data = subtitle_out;
482 pkt.size = subtitle_out_size;
483 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
484 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
485 /* XXX: the pts correction is handled here. Maybe handling
486 it in the codec would be better */
488 pkt.pts += 90 * sub->start_display_time;
490 pkt.pts += 90 * sub->end_display_time;
492 write_frame(s, &pkt, ost);
496 static void do_video_out(AVFormatContext *s,
499 int *frame_size, float quality)
501 int ret, format_video_sync;
503 AVCodecContext *enc = ost->st->codec;
507 format_video_sync = video_sync_method;
508 if (format_video_sync == VSYNC_AUTO)
509 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
510 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
511 if (format_video_sync != VSYNC_PASSTHROUGH &&
513 in_picture->pts != AV_NOPTS_VALUE &&
514 in_picture->pts < ost->sync_opts) {
516 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
520 if (in_picture->pts == AV_NOPTS_VALUE)
521 in_picture->pts = ost->sync_opts;
522 ost->sync_opts = in_picture->pts;
525 if (!ost->frame_number)
526 ost->first_pts = in_picture->pts;
528 av_init_packet(&pkt);
532 if (!check_recording_time(ost) ||
533 ost->frame_number >= ost->max_frames)
536 if (s->oformat->flags & AVFMT_RAWPICTURE &&
537 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
538 /* raw pictures are written as AVPicture structure to
539 avoid any copies. We support temporarily the older
541 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
542 enc->coded_frame->top_field_first = in_picture->top_field_first;
543 pkt.data = (uint8_t *)in_picture;
544 pkt.size = sizeof(AVPicture);
545 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
546 pkt.flags |= AV_PKT_FLAG_KEY;
548 write_frame(s, &pkt, ost);
553 big_picture = *in_picture;
554 /* better than nothing: use input picture interlaced
556 big_picture.interlaced_frame = in_picture->interlaced_frame;
557 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
558 if (ost->top_field_first == -1)
559 big_picture.top_field_first = in_picture->top_field_first;
561 big_picture.top_field_first = !!ost->top_field_first;
564 /* handles same_quant here. This is not correct because it may
565 not be a global option */
566 big_picture.quality = quality;
567 if (!enc->me_threshold)
568 big_picture.pict_type = 0;
569 if (ost->forced_kf_index < ost->forced_kf_count &&
570 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
571 big_picture.pict_type = AV_PICTURE_TYPE_I;
572 ost->forced_kf_index++;
574 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
576 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
581 if (pkt.pts != AV_NOPTS_VALUE)
582 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
583 if (pkt.dts != AV_NOPTS_VALUE)
584 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
586 write_frame(s, &pkt, ost);
587 *frame_size = pkt.size;
588 video_size += pkt.size;
590 /* if two pass, output log */
591 if (ost->logfile && enc->stats_out) {
592 fprintf(ost->logfile, "%s", enc->stats_out);
598 * For video, number of frames in == number of packets out.
599 * But there may be reordering, so we can't throw away frames on encoder
600 * flush, we need to limit them here, before they go into encoder.
605 static double psnr(double d)
607 return -10.0 * log(d) / log(10.0);
610 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
615 double ti1, bitrate, avg_bitrate;
617 /* this is executed just the first time do_video_stats is called */
619 vstats_file = fopen(vstats_filename, "w");
626 enc = ost->st->codec;
627 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
628 frame_number = ost->frame_number;
629 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
630 if (enc->flags&CODEC_FLAG_PSNR)
631 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
633 fprintf(vstats_file,"f_size= %6d ", frame_size);
634 /* compute pts value */
635 ti1 = ost->sync_opts * av_q2d(enc->time_base);
639 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
640 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
641 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
642 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
643 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
647 /* check for new output on any of the filtergraphs */
648 static int poll_filters(void)
650 AVFilterBufferRef *picref;
651 AVFrame *filtered_frame = NULL;
654 for (i = 0; i < nb_output_streams; i++) {
655 OutputStream *ost = output_streams[i];
656 OutputFile *of = output_files[ost->file_index];
662 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
663 return AVERROR(ENOMEM);
665 avcodec_get_frame_defaults(ost->filtered_frame);
666 filtered_frame = ost->filtered_frame;
668 while (ret >= 0 && !ost->is_past_recording_time) {
669 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
670 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
671 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
672 ost->st->codec->frame_size);
674 ret = av_buffersink_read(ost->filter->filter, &picref);
676 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
681 avfilter_copy_buf_props(filtered_frame, picref);
682 if (picref->pts != AV_NOPTS_VALUE) {
683 filtered_frame->pts = av_rescale_q(picref->pts,
684 ost->filter->filter->inputs[0]->time_base,
685 ost->st->codec->time_base) -
686 av_rescale_q(of->start_time,
688 ost->st->codec->time_base);
690 if (of->start_time && filtered_frame->pts < 0) {
691 avfilter_unref_buffer(picref);
696 switch (ost->filter->filter->inputs[0]->type) {
697 case AVMEDIA_TYPE_VIDEO:
698 if (!ost->frame_aspect_ratio)
699 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
701 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
702 same_quant ? ost->last_quality :
703 ost->st->codec->global_quality);
704 if (vstats_filename && frame_size)
705 do_video_stats(of->ctx, ost, frame_size);
707 case AVMEDIA_TYPE_AUDIO:
708 do_audio_out(of->ctx, ost, filtered_frame);
711 // TODO support subtitle filters
715 avfilter_unref_buffer(picref);
721 static void print_report(int is_last_report, int64_t timer_start)
728 int frame_number, vid, i;
729 double bitrate, ti1, pts;
730 static int64_t last_time = -1;
731 static int qp_histogram[52];
733 if (!print_stats && !is_last_report)
736 if (!is_last_report) {
738 /* display the report every 0.5 seconds */
739 cur_time = av_gettime();
740 if (last_time == -1) {
741 last_time = cur_time;
744 if ((cur_time - last_time) < 500000)
746 last_time = cur_time;
750 oc = output_files[0]->ctx;
752 total_size = avio_size(oc->pb);
753 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
754 total_size = avio_tell(oc->pb);
759 for (i = 0; i < nb_output_streams; i++) {
761 ost = output_streams[i];
762 enc = ost->st->codec;
763 if (!ost->stream_copy && enc->coded_frame)
764 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
765 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
766 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
768 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
769 float t = (av_gettime() - timer_start) / 1000000.0;
771 frame_number = ost->frame_number;
772 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
773 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
775 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
779 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
781 for (j = 0; j < 32; j++)
782 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
784 if (enc->flags&CODEC_FLAG_PSNR) {
786 double error, error_sum = 0;
787 double scale, scale_sum = 0;
788 char type[3] = { 'Y','U','V' };
789 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
790 for (j = 0; j < 3; j++) {
791 if (is_last_report) {
792 error = enc->error[j];
793 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
795 error = enc->coded_frame->error[j];
796 scale = enc->width * enc->height * 255.0 * 255.0;
802 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
804 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
808 /* compute min output value */
809 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
810 if ((pts < ti1) && (pts > 0))
816 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
818 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
819 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
820 (double)total_size / 1024, ti1, bitrate);
822 if (nb_frames_dup || nb_frames_drop)
823 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
824 nb_frames_dup, nb_frames_drop);
826 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
830 if (is_last_report) {
831 int64_t raw= audio_size + video_size + extra_size;
832 av_log(NULL, AV_LOG_INFO, "\n");
833 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
837 100.0 * (total_size - raw) / raw
842 static void flush_encoders(void)
846 for (i = 0; i < nb_output_streams; i++) {
847 OutputStream *ost = output_streams[i];
848 AVCodecContext *enc = ost->st->codec;
849 AVFormatContext *os = output_files[ost->file_index]->ctx;
850 int stop_encoding = 0;
852 if (!ost->encoding_needed)
855 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
857 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
861 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
865 switch (ost->st->codec->codec_type) {
866 case AVMEDIA_TYPE_AUDIO:
867 encode = avcodec_encode_audio2;
871 case AVMEDIA_TYPE_VIDEO:
872 encode = avcodec_encode_video2;
883 av_init_packet(&pkt);
887 ret = encode(enc, &pkt, NULL, &got_packet);
889 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
893 if (ost->logfile && enc->stats_out) {
894 fprintf(ost->logfile, "%s", enc->stats_out);
900 if (pkt.pts != AV_NOPTS_VALUE)
901 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
902 if (pkt.dts != AV_NOPTS_VALUE)
903 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
904 write_frame(os, &pkt, ost);
914 * Check whether a packet from ist should be written into ost at this time
916 static int check_output_constraints(InputStream *ist, OutputStream *ost)
918 OutputFile *of = output_files[ost->file_index];
919 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
921 if (ost->source_index != ist_index)
924 if (of->start_time && ist->last_dts < of->start_time)
930 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
932 OutputFile *of = output_files[ost->file_index];
933 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
936 av_init_packet(&opkt);
938 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
939 !ost->copy_initial_nonkeyframes)
942 if (of->recording_time != INT64_MAX &&
943 ist->last_dts >= of->recording_time + of->start_time) {
944 ost->is_past_recording_time = 1;
948 /* force the input stream PTS */
949 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
950 audio_size += pkt->size;
951 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
952 video_size += pkt->size;
956 if (pkt->pts != AV_NOPTS_VALUE)
957 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
959 opkt.pts = AV_NOPTS_VALUE;
961 if (pkt->dts == AV_NOPTS_VALUE)
962 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
964 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
965 opkt.dts -= ost_tb_start_time;
967 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
968 opkt.flags = pkt->flags;
970 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
971 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
972 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
973 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
974 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
976 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
977 opkt.destruct = av_destruct_packet;
979 opkt.data = pkt->data;
980 opkt.size = pkt->size;
983 write_frame(of->ctx, &opkt, ost);
984 ost->st->codec->frame_number++;
985 av_free_packet(&opkt);
988 static void rate_emu_sleep(InputStream *ist)
990 if (input_files[ist->file_index]->rate_emu) {
991 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
992 int64_t now = av_gettime() - ist->start;
994 av_usleep(pts - now);
998 int guess_input_channel_layout(InputStream *ist)
1000 AVCodecContext *dec = ist->st->codec;
1002 if (!dec->channel_layout) {
1003 char layout_name[256];
1005 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1006 if (!dec->channel_layout)
1008 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1009 dec->channels, dec->channel_layout);
1010 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1011 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1016 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1018 AVFrame *decoded_frame;
1019 AVCodecContext *avctx = ist->st->codec;
1020 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1021 int i, ret, resample_changed;
1023 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1024 return AVERROR(ENOMEM);
1026 avcodec_get_frame_defaults(ist->decoded_frame);
1027 decoded_frame = ist->decoded_frame;
1029 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1035 /* no audio frame */
1037 for (i = 0; i < ist->nb_filters; i++)
1038 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
1042 /* if the decoder provides a pts, use it instead of the last packet pts.
1043 the decoder could be delaying output by a packet or more. */
1044 if (decoded_frame->pts != AV_NOPTS_VALUE)
1045 ist->next_dts = decoded_frame->pts;
1046 else if (pkt->pts != AV_NOPTS_VALUE) {
1047 decoded_frame->pts = pkt->pts;
1048 pkt->pts = AV_NOPTS_VALUE;
1051 // preprocess audio (volume)
1052 if (audio_volume != 256) {
1053 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1054 void *samples = decoded_frame->data[0];
1055 switch (avctx->sample_fmt) {
1056 case AV_SAMPLE_FMT_U8:
1058 uint8_t *volp = samples;
1059 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1060 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1061 *volp++ = av_clip_uint8(v);
1065 case AV_SAMPLE_FMT_S16:
1067 int16_t *volp = samples;
1068 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1069 int v = ((*volp) * audio_volume + 128) >> 8;
1070 *volp++ = av_clip_int16(v);
1074 case AV_SAMPLE_FMT_S32:
1076 int32_t *volp = samples;
1077 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1078 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1079 *volp++ = av_clipl_int32(v);
1083 case AV_SAMPLE_FMT_FLT:
1085 float *volp = samples;
1086 float scale = audio_volume / 256.f;
1087 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1092 case AV_SAMPLE_FMT_DBL:
1094 double *volp = samples;
1095 double scale = audio_volume / 256.;
1096 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1102 av_log(NULL, AV_LOG_FATAL,
1103 "Audio volume adjustment on sample format %s is not supported.\n",
1104 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1109 rate_emu_sleep(ist);
1111 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1112 ist->resample_channels != avctx->channels ||
1113 ist->resample_channel_layout != decoded_frame->channel_layout ||
1114 ist->resample_sample_rate != decoded_frame->sample_rate;
1115 if (resample_changed) {
1116 char layout1[64], layout2[64];
1118 if (!guess_input_channel_layout(ist)) {
1119 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1120 "layout for Input Stream #%d.%d\n", ist->file_index,
1124 decoded_frame->channel_layout = avctx->channel_layout;
1126 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1127 ist->resample_channel_layout);
1128 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1129 decoded_frame->channel_layout);
1131 av_log(NULL, AV_LOG_INFO,
1132 "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",
1133 ist->file_index, ist->st->index,
1134 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1135 ist->resample_channels, layout1,
1136 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1137 avctx->channels, layout2);
1139 ist->resample_sample_fmt = decoded_frame->format;
1140 ist->resample_sample_rate = decoded_frame->sample_rate;
1141 ist->resample_channel_layout = decoded_frame->channel_layout;
1142 ist->resample_channels = avctx->channels;
1144 for (i = 0; i < nb_filtergraphs; i++)
1145 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1146 configure_filtergraph(filtergraphs[i]) < 0) {
1147 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1152 if (decoded_frame->pts != AV_NOPTS_VALUE)
1153 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1155 (AVRational){1, ist->st->codec->sample_rate});
1156 for (i = 0; i < ist->nb_filters; i++)
1157 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
1162 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1164 AVFrame *decoded_frame;
1165 void *buffer_to_free = NULL;
1166 int i, ret = 0, resample_changed;
1169 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1170 return AVERROR(ENOMEM);
1172 avcodec_get_frame_defaults(ist->decoded_frame);
1173 decoded_frame = ist->decoded_frame;
1175 ret = avcodec_decode_video2(ist->st->codec,
1176 decoded_frame, got_output, pkt);
1180 quality = same_quant ? decoded_frame->quality : 0;
1182 /* no picture yet */
1184 for (i = 0; i < ist->nb_filters; i++)
1185 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
1188 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1189 decoded_frame->pkt_dts);
1191 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1193 rate_emu_sleep(ist);
1195 if (ist->st->sample_aspect_ratio.num)
1196 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1198 resample_changed = ist->resample_width != decoded_frame->width ||
1199 ist->resample_height != decoded_frame->height ||
1200 ist->resample_pix_fmt != decoded_frame->format;
1201 if (resample_changed) {
1202 av_log(NULL, AV_LOG_INFO,
1203 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1204 ist->file_index, ist->st->index,
1205 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1206 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1208 ist->resample_width = decoded_frame->width;
1209 ist->resample_height = decoded_frame->height;
1210 ist->resample_pix_fmt = decoded_frame->format;
1212 for (i = 0; i < nb_filtergraphs; i++)
1213 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1214 configure_filtergraph(filtergraphs[i]) < 0) {
1215 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1220 for (i = 0; i < ist->nb_filters; i++) {
1221 // XXX what an ugly hack
1222 if (ist->filters[i]->graph->nb_outputs == 1)
1223 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
1225 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1226 FrameBuffer *buf = decoded_frame->opaque;
1227 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1228 decoded_frame->data, decoded_frame->linesize,
1229 AV_PERM_READ | AV_PERM_PRESERVE,
1230 ist->st->codec->width, ist->st->codec->height,
1231 ist->st->codec->pix_fmt);
1233 avfilter_copy_frame_props(fb, decoded_frame);
1234 fb->buf->priv = buf;
1235 fb->buf->free = filter_release_buffer;
1238 av_buffersrc_buffer(ist->filters[i]->filter, fb);
1240 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
1243 av_free(buffer_to_free);
1247 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1249 AVSubtitle subtitle;
1250 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1251 &subtitle, got_output, pkt);
1257 rate_emu_sleep(ist);
1259 for (i = 0; i < nb_output_streams; i++) {
1260 OutputStream *ost = output_streams[i];
1262 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1265 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1268 avsubtitle_free(&subtitle);
1272 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1273 static int output_packet(InputStream *ist, const AVPacket *pkt)
1279 if (ist->next_dts == AV_NOPTS_VALUE)
1280 ist->next_dts = ist->last_dts;
1284 av_init_packet(&avpkt);
1292 if (pkt->dts != AV_NOPTS_VALUE)
1293 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1295 // while we have more to decode or while the decoder did output something on EOF
1296 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1300 ist->last_dts = ist->next_dts;
1302 if (avpkt.size && avpkt.size != pkt->size) {
1303 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1304 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1305 ist->showed_multi_packet_warning = 1;
1308 switch (ist->st->codec->codec_type) {
1309 case AVMEDIA_TYPE_AUDIO:
1310 ret = decode_audio (ist, &avpkt, &got_output);
1312 case AVMEDIA_TYPE_VIDEO:
1313 ret = decode_video (ist, &avpkt, &got_output);
1315 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1316 else if (ist->st->avg_frame_rate.num)
1317 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1319 else if (ist->st->codec->time_base.num != 0) {
1320 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1321 ist->st->codec->ticks_per_frame;
1322 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1325 case AVMEDIA_TYPE_SUBTITLE:
1326 ret = transcode_subtitles(ist, &avpkt, &got_output);
1334 // touch data and size only if not EOF
1344 /* handle stream copy */
1345 if (!ist->decoding_needed) {
1346 rate_emu_sleep(ist);
1347 ist->last_dts = ist->next_dts;
1348 switch (ist->st->codec->codec_type) {
1349 case AVMEDIA_TYPE_AUDIO:
1350 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1351 ist->st->codec->sample_rate;
1353 case AVMEDIA_TYPE_VIDEO:
1354 if (ist->st->codec->time_base.num != 0) {
1355 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1356 ist->next_dts += ((int64_t)AV_TIME_BASE *
1357 ist->st->codec->time_base.num * ticks) /
1358 ist->st->codec->time_base.den;
1363 for (i = 0; pkt && i < nb_output_streams; i++) {
1364 OutputStream *ost = output_streams[i];
1366 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1369 do_streamcopy(ist, ost, pkt);
1375 static void print_sdp(void)
1379 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1383 for (i = 0; i < nb_output_files; i++)
1384 avc[i] = output_files[i]->ctx;
1386 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1387 printf("SDP:\n%s\n", sdp);
1392 static int init_input_stream(int ist_index, char *error, int error_len)
1395 InputStream *ist = input_streams[ist_index];
1396 if (ist->decoding_needed) {
1397 AVCodec *codec = ist->dec;
1399 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1400 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1401 return AVERROR(EINVAL);
1404 /* update requested sample format for the decoder based on the
1405 corresponding encoder sample format */
1406 for (i = 0; i < nb_output_streams; i++) {
1407 OutputStream *ost = output_streams[i];
1408 if (ost->source_index == ist_index) {
1409 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1414 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
1415 ist->st->codec->get_buffer = codec_get_buffer;
1416 ist->st->codec->release_buffer = codec_release_buffer;
1417 ist->st->codec->opaque = &ist->buffer_pool;
1420 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1421 av_dict_set(&ist->opts, "threads", "auto", 0);
1422 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1423 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1424 ist->file_index, ist->st->index);
1425 return AVERROR(EINVAL);
1427 assert_codec_experimental(ist->st->codec, 0);
1428 assert_avoptions(ist->opts);
1431 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1432 ist->next_dts = AV_NOPTS_VALUE;
1433 init_pts_correction(&ist->pts_ctx);
1439 static InputStream *get_input_stream(OutputStream *ost)
1441 if (ost->source_index >= 0)
1442 return input_streams[ost->source_index];
1445 FilterGraph *fg = ost->filter->graph;
1448 for (i = 0; i < fg->nb_inputs; i++)
1449 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1450 return fg->inputs[i]->ist;
1456 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1457 AVCodecContext *avctx)
1463 for (p = kf; *p; p++)
1466 ost->forced_kf_count = n;
1467 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1468 if (!ost->forced_kf_pts) {
1469 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1474 for (i = 0; i < n; i++) {
1475 char *next = strchr(p, ',');
1480 t = parse_time_or_die("force_key_frames", p, 1);
1481 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1487 static int transcode_init(void)
1489 int ret = 0, i, j, k;
1490 AVFormatContext *oc;
1491 AVCodecContext *codec, *icodec;
1497 /* init framerate emulation */
1498 for (i = 0; i < nb_input_files; i++) {
1499 InputFile *ifile = input_files[i];
1500 if (ifile->rate_emu)
1501 for (j = 0; j < ifile->nb_streams; j++)
1502 input_streams[j + ifile->ist_index]->start = av_gettime();
1505 /* output stream init */
1506 for (i = 0; i < nb_output_files; i++) {
1507 oc = output_files[i]->ctx;
1508 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1509 av_dump_format(oc, i, oc->filename, 1);
1510 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1511 return AVERROR(EINVAL);
1515 /* init complex filtergraphs */
1516 for (i = 0; i < nb_filtergraphs; i++)
1517 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1520 /* for each output stream, we compute the right encoding parameters */
1521 for (i = 0; i < nb_output_streams; i++) {
1522 ost = output_streams[i];
1523 oc = output_files[ost->file_index]->ctx;
1524 ist = get_input_stream(ost);
1526 if (ost->attachment_filename)
1529 codec = ost->st->codec;
1532 icodec = ist->st->codec;
1534 ost->st->disposition = ist->st->disposition;
1535 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1536 codec->chroma_sample_location = icodec->chroma_sample_location;
1539 if (ost->stream_copy) {
1540 uint64_t extra_size;
1542 av_assert0(ist && !ost->filter);
1544 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1546 if (extra_size > INT_MAX) {
1547 return AVERROR(EINVAL);
1550 /* if stream_copy is selected, no need to decode or encode */
1551 codec->codec_id = icodec->codec_id;
1552 codec->codec_type = icodec->codec_type;
1554 if (!codec->codec_tag) {
1555 if (!oc->oformat->codec_tag ||
1556 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1557 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1558 codec->codec_tag = icodec->codec_tag;
1561 codec->bit_rate = icodec->bit_rate;
1562 codec->rc_max_rate = icodec->rc_max_rate;
1563 codec->rc_buffer_size = icodec->rc_buffer_size;
1564 codec->field_order = icodec->field_order;
1565 codec->extradata = av_mallocz(extra_size);
1566 if (!codec->extradata) {
1567 return AVERROR(ENOMEM);
1569 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1570 codec->extradata_size = icodec->extradata_size;
1572 codec->time_base = icodec->time_base;
1573 codec->time_base.num *= icodec->ticks_per_frame;
1574 av_reduce(&codec->time_base.num, &codec->time_base.den,
1575 codec->time_base.num, codec->time_base.den, INT_MAX);
1577 codec->time_base = ist->st->time_base;
1579 switch (codec->codec_type) {
1580 case AVMEDIA_TYPE_AUDIO:
1581 if (audio_volume != 256) {
1582 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1585 codec->channel_layout = icodec->channel_layout;
1586 codec->sample_rate = icodec->sample_rate;
1587 codec->channels = icodec->channels;
1588 codec->frame_size = icodec->frame_size;
1589 codec->audio_service_type = icodec->audio_service_type;
1590 codec->block_align = icodec->block_align;
1592 case AVMEDIA_TYPE_VIDEO:
1593 codec->pix_fmt = icodec->pix_fmt;
1594 codec->width = icodec->width;
1595 codec->height = icodec->height;
1596 codec->has_b_frames = icodec->has_b_frames;
1597 if (!codec->sample_aspect_ratio.num) {
1598 codec->sample_aspect_ratio =
1599 ost->st->sample_aspect_ratio =
1600 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1601 ist->st->codec->sample_aspect_ratio.num ?
1602 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1605 case AVMEDIA_TYPE_SUBTITLE:
1606 codec->width = icodec->width;
1607 codec->height = icodec->height;
1609 case AVMEDIA_TYPE_DATA:
1610 case AVMEDIA_TYPE_ATTACHMENT:
1617 /* should only happen when a default codec is not present. */
1618 snprintf(error, sizeof(error), "Automatic encoder selection "
1619 "failed for output stream #%d:%d. Default encoder for "
1620 "format %s is probably disabled. Please choose an "
1621 "encoder manually.\n", ost->file_index, ost->index,
1623 ret = AVERROR(EINVAL);
1628 ist->decoding_needed = 1;
1629 ost->encoding_needed = 1;
1632 * We want CFR output if and only if one of those is true:
1633 * 1) user specified output framerate with -r
1634 * 2) user specified -vsync cfr
1635 * 3) output format is CFR and the user didn't force vsync to
1636 * something else than CFR
1638 * in such a case, set ost->frame_rate
1640 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1641 !ost->frame_rate.num && ist &&
1642 (video_sync_method == VSYNC_CFR ||
1643 (video_sync_method == VSYNC_AUTO &&
1644 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1645 ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
1646 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1647 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1648 ost->frame_rate = ost->enc->supported_framerates[idx];
1653 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1654 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1656 fg = init_simple_filtergraph(ist, ost);
1657 if (configure_filtergraph(fg)) {
1658 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1663 switch (codec->codec_type) {
1664 case AVMEDIA_TYPE_AUDIO:
1665 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1666 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1667 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1668 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1669 codec->time_base = (AVRational){ 1, codec->sample_rate };
1671 case AVMEDIA_TYPE_VIDEO:
1672 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1674 codec->width = ost->filter->filter->inputs[0]->w;
1675 codec->height = ost->filter->filter->inputs[0]->h;
1676 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1677 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1678 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1679 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1680 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1682 if (codec->width != icodec->width ||
1683 codec->height != icodec->height ||
1684 codec->pix_fmt != icodec->pix_fmt) {
1685 codec->bits_per_raw_sample = 0;
1688 if (ost->forced_keyframes)
1689 parse_forced_key_frames(ost->forced_keyframes, ost,
1692 case AVMEDIA_TYPE_SUBTITLE:
1693 codec->time_base = (AVRational){1, 1000};
1700 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1701 char logfilename[1024];
1704 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1705 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
1707 if (!strcmp(ost->enc->name, "libx264")) {
1708 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1710 if (codec->flags & CODEC_FLAG_PASS1) {
1711 f = fopen(logfilename, "wb");
1713 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1714 logfilename, strerror(errno));
1720 size_t logbuffer_size;
1721 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1722 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1726 codec->stats_in = logbuffer;
1733 /* open each encoder */
1734 for (i = 0; i < nb_output_streams; i++) {
1735 ost = output_streams[i];
1736 if (ost->encoding_needed) {
1737 AVCodec *codec = ost->enc;
1738 AVCodecContext *dec = NULL;
1740 if ((ist = get_input_stream(ost)))
1741 dec = ist->st->codec;
1742 if (dec && dec->subtitle_header) {
1743 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1744 if (!ost->st->codec->subtitle_header) {
1745 ret = AVERROR(ENOMEM);
1748 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1749 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1751 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1752 av_dict_set(&ost->opts, "threads", "auto", 0);
1753 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
1754 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1755 ost->file_index, ost->index);
1756 ret = AVERROR(EINVAL);
1759 assert_codec_experimental(ost->st->codec, 1);
1760 assert_avoptions(ost->opts);
1761 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1762 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1763 "It takes bits/s as argument, not kbits/s\n");
1764 extra_size += ost->st->codec->extradata_size;
1766 if (ost->st->codec->me_threshold)
1767 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
1771 /* init input streams */
1772 for (i = 0; i < nb_input_streams; i++)
1773 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1776 /* discard unused programs */
1777 for (i = 0; i < nb_input_files; i++) {
1778 InputFile *ifile = input_files[i];
1779 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1780 AVProgram *p = ifile->ctx->programs[j];
1781 int discard = AVDISCARD_ALL;
1783 for (k = 0; k < p->nb_stream_indexes; k++)
1784 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1785 discard = AVDISCARD_DEFAULT;
1788 p->discard = discard;
1792 /* open files and write file headers */
1793 for (i = 0; i < nb_output_files; i++) {
1794 oc = output_files[i]->ctx;
1795 oc->interrupt_callback = int_cb;
1796 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1798 const char *errbuf_ptr = errbuf;
1799 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1800 errbuf_ptr = strerror(AVUNERROR(ret));
1801 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
1802 ret = AVERROR(EINVAL);
1805 assert_avoptions(output_files[i]->opts);
1806 if (strcmp(oc->oformat->name, "rtp")) {
1812 /* dump the file output parameters - cannot be done before in case
1814 for (i = 0; i < nb_output_files; i++) {
1815 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1818 /* dump the stream mapping */
1819 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1820 for (i = 0; i < nb_input_streams; i++) {
1821 ist = input_streams[i];
1823 for (j = 0; j < ist->nb_filters; j++) {
1824 if (ist->filters[j]->graph->graph_desc) {
1825 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1826 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1827 ist->filters[j]->name);
1828 if (nb_filtergraphs > 1)
1829 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1830 av_log(NULL, AV_LOG_INFO, "\n");
1835 for (i = 0; i < nb_output_streams; i++) {
1836 ost = output_streams[i];
1838 if (ost->attachment_filename) {
1839 /* an attached file */
1840 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1841 ost->attachment_filename, ost->file_index, ost->index);
1845 if (ost->filter && ost->filter->graph->graph_desc) {
1846 /* output from a complex graph */
1847 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1848 if (nb_filtergraphs > 1)
1849 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1851 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1852 ost->index, ost->enc ? ost->enc->name : "?");
1856 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
1857 input_streams[ost->source_index]->file_index,
1858 input_streams[ost->source_index]->st->index,
1861 if (ost->sync_ist != input_streams[ost->source_index])
1862 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
1863 ost->sync_ist->file_index,
1864 ost->sync_ist->st->index);
1865 if (ost->stream_copy)
1866 av_log(NULL, AV_LOG_INFO, " (copy)");
1868 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1869 input_streams[ost->source_index]->dec->name : "?",
1870 ost->enc ? ost->enc->name : "?");
1871 av_log(NULL, AV_LOG_INFO, "\n");
1875 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
1887 * @return 1 if there are still streams where more output is wanted,
1890 static int need_output(void)
1894 for (i = 0; i < nb_output_streams; i++) {
1895 OutputStream *ost = output_streams[i];
1896 OutputFile *of = output_files[ost->file_index];
1897 AVFormatContext *os = output_files[ost->file_index]->ctx;
1899 if (ost->is_past_recording_time ||
1900 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1902 if (ost->frame_number >= ost->max_frames) {
1904 for (j = 0; j < of->ctx->nb_streams; j++)
1905 output_streams[of->ost_index + j]->is_past_recording_time = 1;
1915 static int select_input_file(uint8_t *no_packet)
1917 int64_t ipts_min = INT64_MAX;
1918 int i, file_index = -1;
1920 for (i = 0; i < nb_input_streams; i++) {
1921 InputStream *ist = input_streams[i];
1922 int64_t ipts = ist->last_dts;
1924 if (ist->discard || no_packet[ist->file_index])
1926 if (!input_files[ist->file_index]->eof_reached) {
1927 if (ipts < ipts_min) {
1929 file_index = ist->file_index;
1938 static void *input_thread(void *arg)
1943 while (!transcoding_finished && ret >= 0) {
1945 ret = av_read_frame(f->ctx, &pkt);
1947 if (ret == AVERROR(EAGAIN)) {
1954 pthread_mutex_lock(&f->fifo_lock);
1955 while (!av_fifo_space(f->fifo))
1956 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1958 av_dup_packet(&pkt);
1959 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1961 pthread_mutex_unlock(&f->fifo_lock);
1968 static void free_input_threads(void)
1972 if (nb_input_files == 1)
1975 transcoding_finished = 1;
1977 for (i = 0; i < nb_input_files; i++) {
1978 InputFile *f = input_files[i];
1981 if (!f->fifo || f->joined)
1984 pthread_mutex_lock(&f->fifo_lock);
1985 while (av_fifo_size(f->fifo)) {
1986 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1987 av_free_packet(&pkt);
1989 pthread_cond_signal(&f->fifo_cond);
1990 pthread_mutex_unlock(&f->fifo_lock);
1992 pthread_join(f->thread, NULL);
1995 while (av_fifo_size(f->fifo)) {
1996 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1997 av_free_packet(&pkt);
1999 av_fifo_free(f->fifo);
2003 static int init_input_threads(void)
2007 if (nb_input_files == 1)
2010 for (i = 0; i < nb_input_files; i++) {
2011 InputFile *f = input_files[i];
2013 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2014 return AVERROR(ENOMEM);
2016 pthread_mutex_init(&f->fifo_lock, NULL);
2017 pthread_cond_init (&f->fifo_cond, NULL);
2019 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2020 return AVERROR(ret);
2025 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2029 pthread_mutex_lock(&f->fifo_lock);
2031 if (av_fifo_size(f->fifo)) {
2032 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2033 pthread_cond_signal(&f->fifo_cond);
2038 ret = AVERROR(EAGAIN);
2041 pthread_mutex_unlock(&f->fifo_lock);
2047 static int get_input_packet(InputFile *f, AVPacket *pkt)
2050 if (nb_input_files > 1)
2051 return get_input_packet_mt(f, pkt);
2053 return av_read_frame(f->ctx, pkt);
2057 * The following code is the main loop of the file converter
2059 static int transcode(void)
2062 AVFormatContext *is, *os;
2066 int no_packet_count = 0;
2067 int64_t timer_start;
2069 if (!(no_packet = av_mallocz(nb_input_files)))
2072 ret = transcode_init();
2076 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2079 timer_start = av_gettime();
2082 if ((ret = init_input_threads()) < 0)
2086 for (; received_sigterm == 0;) {
2087 int file_index, ist_index;
2090 /* check if there's any stream where output is still needed */
2091 if (!need_output()) {
2092 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2096 /* select the stream that we must read now */
2097 file_index = select_input_file(no_packet);
2098 /* if none, if is finished */
2099 if (file_index < 0) {
2100 if (no_packet_count) {
2101 no_packet_count = 0;
2102 memset(no_packet, 0, nb_input_files);
2106 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2110 is = input_files[file_index]->ctx;
2111 ret = get_input_packet(input_files[file_index], &pkt);
2113 if (ret == AVERROR(EAGAIN)) {
2114 no_packet[file_index] = 1;
2119 if (ret != AVERROR_EOF) {
2120 print_error(is->filename, ret);
2124 input_files[file_index]->eof_reached = 1;
2126 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
2127 ist = input_streams[input_files[file_index]->ist_index + i];
2128 if (ist->decoding_needed)
2129 output_packet(ist, NULL);
2138 no_packet_count = 0;
2139 memset(no_packet, 0, nb_input_files);
2142 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2143 is->streams[pkt.stream_index]);
2145 /* the following test is needed in case new streams appear
2146 dynamically in stream : we ignore them */
2147 if (pkt.stream_index >= input_files[file_index]->nb_streams)
2148 goto discard_packet;
2149 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2150 ist = input_streams[ist_index];
2152 goto discard_packet;
2154 if (pkt.dts != AV_NOPTS_VALUE)
2155 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2156 if (pkt.pts != AV_NOPTS_VALUE)
2157 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2159 if (pkt.pts != AV_NOPTS_VALUE)
2160 pkt.pts *= ist->ts_scale;
2161 if (pkt.dts != AV_NOPTS_VALUE)
2162 pkt.dts *= ist->ts_scale;
2164 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
2166 // pkt.dts, input_files[ist->file_index].ts_offset,
2167 // ist->st->codec->codec_type);
2168 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
2169 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2170 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2171 int64_t delta = pkt_dts - ist->next_dts;
2172 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2173 input_files[ist->file_index]->ts_offset -= delta;
2174 av_log(NULL, AV_LOG_DEBUG,
2175 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2176 delta, input_files[ist->file_index]->ts_offset);
2177 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2178 if (pkt.pts != AV_NOPTS_VALUE)
2179 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2183 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2184 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
2185 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2186 ist->file_index, ist->st->index);
2189 av_free_packet(&pkt);
2194 av_free_packet(&pkt);
2196 /* dump report by using the output first video and audio streams */
2197 print_report(0, timer_start);
2200 free_input_threads();
2203 /* at the end of stream, we must flush the decoder buffers */
2204 for (i = 0; i < nb_input_streams; i++) {
2205 ist = input_streams[i];
2206 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2207 output_packet(ist, NULL);
2215 /* write the trailer if needed and close file */
2216 for (i = 0; i < nb_output_files; i++) {
2217 os = output_files[i]->ctx;
2218 av_write_trailer(os);
2221 /* dump report by using the first video and audio streams */
2222 print_report(1, timer_start);
2224 /* close each encoder */
2225 for (i = 0; i < nb_output_streams; i++) {
2226 ost = output_streams[i];
2227 if (ost->encoding_needed) {
2228 av_freep(&ost->st->codec->stats_in);
2229 avcodec_close(ost->st->codec);
2233 /* close each decoder */
2234 for (i = 0; i < nb_input_streams; i++) {
2235 ist = input_streams[i];
2236 if (ist->decoding_needed) {
2237 avcodec_close(ist->st->codec);
2245 av_freep(&no_packet);
2247 free_input_threads();
2250 if (output_streams) {
2251 for (i = 0; i < nb_output_streams; i++) {
2252 ost = output_streams[i];
2254 if (ost->stream_copy)
2255 av_freep(&ost->st->codec->extradata);
2257 fclose(ost->logfile);
2258 ost->logfile = NULL;
2260 av_freep(&ost->st->codec->subtitle_header);
2261 av_free(ost->forced_kf_pts);
2262 av_dict_free(&ost->opts);
2269 static int64_t getutime(void)
2272 struct rusage rusage;
2274 getrusage(RUSAGE_SELF, &rusage);
2275 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2276 #elif HAVE_GETPROCESSTIMES
2278 FILETIME c, e, k, u;
2279 proc = GetCurrentProcess();
2280 GetProcessTimes(proc, &c, &e, &k, &u);
2281 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2283 return av_gettime();
2287 static int64_t getmaxrss(void)
2289 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2290 struct rusage rusage;
2291 getrusage(RUSAGE_SELF, &rusage);
2292 return (int64_t)rusage.ru_maxrss * 1024;
2293 #elif HAVE_GETPROCESSMEMORYINFO
2295 PROCESS_MEMORY_COUNTERS memcounters;
2296 proc = GetCurrentProcess();
2297 memcounters.cb = sizeof(memcounters);
2298 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2299 return memcounters.PeakPagefileUsage;
2305 static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
2307 int idx = locate_option(argc, argv, options, "cpuflags");
2308 if (idx && argv[idx + 1])
2309 opt_cpuflags("cpuflags", argv[idx + 1]);
2312 int main(int argc, char **argv)
2314 OptionsContext o = { 0 };
2319 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2320 parse_loglevel(argc, argv, options);
2322 avcodec_register_all();
2324 avdevice_register_all();
2326 avfilter_register_all();
2328 avformat_network_init();
2332 parse_cpuflags(argc, argv, options);
2335 parse_options(&o, argc, argv, options, opt_output_file);
2337 if (nb_output_files <= 0 && nb_input_files == 0) {
2339 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2343 /* file converter / grab */
2344 if (nb_output_files <= 0) {
2345 fprintf(stderr, "At least one output file must be specified\n");
2349 if (nb_input_files == 0) {
2350 av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
2355 if (transcode() < 0)
2357 ti = getutime() - ti;
2359 int maxrss = getmaxrss() / 1024;
2360 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);