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/channel_layout.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
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 int64_t video_size = 0;
88 static int64_t audio_size = 0;
89 static int64_t extra_size = 0;
90 static int nb_frames_dup = 0;
91 static int nb_frames_drop = 0;
96 /* signal to input threads that they should exit; set by the main thread */
97 static int transcoding_finished;
100 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
102 InputStream **input_streams = NULL;
103 int nb_input_streams = 0;
104 InputFile **input_files = NULL;
105 int nb_input_files = 0;
107 OutputStream **output_streams = NULL;
108 int nb_output_streams = 0;
109 OutputFile **output_files = NULL;
110 int nb_output_files = 0;
112 FilterGraph **filtergraphs;
115 static void term_exit(void)
117 av_log(NULL, AV_LOG_QUIET, "");
120 static volatile int received_sigterm = 0;
121 static volatile int received_nb_signals = 0;
124 sigterm_handler(int sig)
126 received_sigterm = sig;
127 received_nb_signals++;
131 static void term_init(void)
133 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
134 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
136 signal(SIGXCPU, sigterm_handler);
140 static int decode_interrupt_cb(void *ctx)
142 return received_nb_signals > 1;
145 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
147 static void exit_program(void)
151 for (i = 0; i < nb_filtergraphs; i++) {
152 avfilter_graph_free(&filtergraphs[i]->graph);
153 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
154 av_freep(&filtergraphs[i]->inputs[j]->name);
155 av_freep(&filtergraphs[i]->inputs[j]);
157 av_freep(&filtergraphs[i]->inputs);
158 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
159 av_freep(&filtergraphs[i]->outputs[j]->name);
160 av_freep(&filtergraphs[i]->outputs[j]);
162 av_freep(&filtergraphs[i]->outputs);
163 av_freep(&filtergraphs[i]->graph_desc);
164 av_freep(&filtergraphs[i]);
166 av_freep(&filtergraphs);
169 for (i = 0; i < nb_output_files; i++) {
170 AVFormatContext *s = output_files[i]->ctx;
171 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
173 avformat_free_context(s);
174 av_dict_free(&output_files[i]->opts);
175 av_freep(&output_files[i]);
177 for (i = 0; i < nb_output_streams; i++) {
178 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
180 AVBitStreamFilterContext *next = bsfc->next;
181 av_bitstream_filter_close(bsfc);
184 output_streams[i]->bitstream_filters = NULL;
185 avcodec_free_frame(&output_streams[i]->filtered_frame);
187 av_freep(&output_streams[i]->forced_keyframes);
188 av_freep(&output_streams[i]->avfilter);
189 av_freep(&output_streams[i]->logfile_prefix);
190 av_freep(&output_streams[i]);
192 for (i = 0; i < nb_input_files; i++) {
193 avformat_close_input(&input_files[i]->ctx);
194 av_freep(&input_files[i]);
196 for (i = 0; i < nb_input_streams; i++) {
197 av_frame_free(&input_streams[i]->decoded_frame);
198 av_frame_free(&input_streams[i]->filter_frame);
199 av_dict_free(&input_streams[i]->opts);
200 av_freep(&input_streams[i]->filters);
201 av_freep(&input_streams[i]);
206 av_free(vstats_filename);
208 av_freep(&input_streams);
209 av_freep(&input_files);
210 av_freep(&output_streams);
211 av_freep(&output_files);
216 avformat_network_deinit();
218 if (received_sigterm) {
219 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
220 (int) received_sigterm);
225 void assert_avoptions(AVDictionary *m)
227 AVDictionaryEntry *t;
228 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
229 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
234 static void abort_codec_experimental(AVCodec *c, int encoder)
236 const char *codec_string = encoder ? "encoder" : "decoder";
238 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
239 "results.\nAdd '-strict experimental' if you want to use it.\n",
240 codec_string, c->name);
241 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
242 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
243 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
244 codec_string, codec->name);
249 * Update the requested input sample format based on the output sample format.
250 * This is currently only used to request float output from decoders which
251 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
252 * Ideally this will be removed in the future when decoders do not do format
253 * conversion and only output in their native format.
255 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
258 /* if sample formats match or a decoder sample format has already been
259 requested, just return */
260 if (enc->sample_fmt == dec->sample_fmt ||
261 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
264 /* if decoder supports more than one output format */
265 if (dec_codec && dec_codec->sample_fmts &&
266 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
267 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
268 const enum AVSampleFormat *p;
269 int min_dec = INT_MAX, min_inc = INT_MAX;
270 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
271 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
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;
279 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
280 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
281 int fmt_diff = 32 * abs(dfmt - efmt);
282 if (av_sample_fmt_is_planar(*p) !=
283 av_sample_fmt_is_planar(enc->sample_fmt))
288 } else if (dfmt > efmt) {
289 if (fmt_diff < min_inc) {
294 if (fmt_diff < min_dec) {
302 /* if none match, provide the one that matches quality closest */
303 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
307 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
309 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
310 AVCodecContext *avctx = ost->st->codec;
314 * Audio encoders may split the packets -- #frames in != #packets out.
315 * But there is no reordering, so we can limit the number of output packets
316 * by simply dropping them here.
317 * Counting encoded video frames needs to be done separately because of
318 * reordering, see do_video_out()
320 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
321 if (ost->frame_number >= ost->max_frames) {
329 AVPacket new_pkt = *pkt;
330 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
331 &new_pkt.data, &new_pkt.size,
332 pkt->data, pkt->size,
333 pkt->flags & AV_PKT_FLAG_KEY);
336 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
337 av_buffer_default_free, NULL, 0);
341 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
342 bsfc->filter->name, pkt->stream_index,
343 avctx->codec ? avctx->codec->name : "copy");
353 pkt->stream_index = ost->index;
354 ret = av_interleaved_write_frame(s, pkt);
356 print_error("av_interleaved_write_frame()", ret);
361 static int check_recording_time(OutputStream *ost)
363 OutputFile *of = output_files[ost->file_index];
365 if (of->recording_time != INT64_MAX &&
366 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
367 AV_TIME_BASE_Q) >= 0) {
374 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
377 AVCodecContext *enc = ost->st->codec;
381 av_init_packet(&pkt);
385 if (!check_recording_time(ost))
388 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
389 frame->pts = ost->sync_opts;
390 ost->sync_opts = frame->pts + frame->nb_samples;
392 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
393 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
398 if (pkt.pts != AV_NOPTS_VALUE)
399 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
400 if (pkt.dts != AV_NOPTS_VALUE)
401 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
402 if (pkt.duration > 0)
403 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
405 write_frame(s, &pkt, ost);
407 audio_size += pkt.size;
411 #if FF_API_DEINTERLACE
412 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
416 AVPicture picture_tmp;
419 dec = ist->st->codec;
421 /* deinterlace : must be done before any resize */
422 if (do_deinterlace) {
425 /* create temporary picture */
426 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
427 buf = av_malloc(size);
431 picture2 = &picture_tmp;
432 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
434 if (avpicture_deinterlace(picture2, picture,
435 dec->pix_fmt, dec->width, dec->height) < 0) {
436 /* if error, do not deinterlace */
437 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
446 if (picture != picture2)
447 *picture = *picture2;
452 static void do_subtitle_out(AVFormatContext *s,
458 static uint8_t *subtitle_out = NULL;
459 int subtitle_out_max_size = 1024 * 1024;
460 int subtitle_out_size, nb, i;
464 if (pts == AV_NOPTS_VALUE) {
465 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
471 enc = ost->st->codec;
474 subtitle_out = av_malloc(subtitle_out_max_size);
477 /* Note: DVB subtitle need one packet to draw them and one other
478 packet to clear them */
479 /* XXX: signal it in the codec context ? */
480 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
485 for (i = 0; i < nb; i++) {
486 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
487 if (!check_recording_time(ost))
490 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
491 // start_display_time is required to be 0
492 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
493 sub->end_display_time -= sub->start_display_time;
494 sub->start_display_time = 0;
495 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
496 subtitle_out_max_size, sub);
497 if (subtitle_out_size < 0) {
498 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
502 av_init_packet(&pkt);
503 pkt.data = subtitle_out;
504 pkt.size = subtitle_out_size;
505 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
506 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
507 /* XXX: the pts correction is handled here. Maybe handling
508 it in the codec would be better */
510 pkt.pts += 90 * sub->start_display_time;
512 pkt.pts += 90 * sub->end_display_time;
514 write_frame(s, &pkt, ost);
518 static void do_video_out(AVFormatContext *s,
523 int ret, format_video_sync;
525 AVCodecContext *enc = ost->st->codec;
529 format_video_sync = video_sync_method;
530 if (format_video_sync == VSYNC_AUTO)
531 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
532 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
533 if (format_video_sync != VSYNC_PASSTHROUGH &&
535 in_picture->pts != AV_NOPTS_VALUE &&
536 in_picture->pts < ost->sync_opts) {
538 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
542 if (in_picture->pts == AV_NOPTS_VALUE)
543 in_picture->pts = ost->sync_opts;
544 ost->sync_opts = in_picture->pts;
547 if (!ost->frame_number)
548 ost->first_pts = in_picture->pts;
550 av_init_packet(&pkt);
554 if (!check_recording_time(ost) ||
555 ost->frame_number >= ost->max_frames)
558 if (s->oformat->flags & AVFMT_RAWPICTURE &&
559 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
560 /* raw pictures are written as AVPicture structure to
561 avoid any copies. We support temporarily the older
563 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
564 enc->coded_frame->top_field_first = in_picture->top_field_first;
565 pkt.data = (uint8_t *)in_picture;
566 pkt.size = sizeof(AVPicture);
567 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
568 pkt.flags |= AV_PKT_FLAG_KEY;
570 write_frame(s, &pkt, ost);
574 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
575 ost->top_field_first >= 0)
576 in_picture->top_field_first = !!ost->top_field_first;
578 in_picture->quality = ost->st->codec->global_quality;
579 if (!enc->me_threshold)
580 in_picture->pict_type = 0;
581 if (ost->forced_kf_index < ost->forced_kf_count &&
582 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
583 in_picture->pict_type = AV_PICTURE_TYPE_I;
584 ost->forced_kf_index++;
586 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
588 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
593 if (pkt.pts != AV_NOPTS_VALUE)
594 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
595 if (pkt.dts != AV_NOPTS_VALUE)
596 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
598 write_frame(s, &pkt, ost);
599 *frame_size = pkt.size;
600 video_size += pkt.size;
602 /* if two pass, output log */
603 if (ost->logfile && enc->stats_out) {
604 fprintf(ost->logfile, "%s", enc->stats_out);
610 * For video, number of frames in == number of packets out.
611 * But there may be reordering, so we can't throw away frames on encoder
612 * flush, we need to limit them here, before they go into encoder.
617 static double psnr(double d)
619 return -10.0 * log(d) / log(10.0);
622 static void do_video_stats(OutputStream *ost, int frame_size)
626 double ti1, bitrate, avg_bitrate;
628 /* this is executed just the first time do_video_stats is called */
630 vstats_file = fopen(vstats_filename, "w");
637 enc = ost->st->codec;
638 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
639 frame_number = ost->frame_number;
640 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
641 if (enc->flags&CODEC_FLAG_PSNR)
642 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
644 fprintf(vstats_file,"f_size= %6d ", frame_size);
645 /* compute pts value */
646 ti1 = ost->sync_opts * av_q2d(enc->time_base);
650 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
651 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
652 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
653 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
654 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
659 * Read one frame for lavfi output for ost and encode it.
661 static int poll_filter(OutputStream *ost)
663 OutputFile *of = output_files[ost->file_index];
664 AVFrame *filtered_frame = NULL;
667 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
668 return AVERROR(ENOMEM);
670 avcodec_get_frame_defaults(ost->filtered_frame);
671 filtered_frame = ost->filtered_frame;
673 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
674 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
675 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
676 ost->st->codec->frame_size);
678 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
683 if (filtered_frame->pts != AV_NOPTS_VALUE) {
684 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
685 ost->filter->filter->inputs[0]->time_base,
686 ost->st->codec->time_base) -
687 av_rescale_q(of->start_time,
689 ost->st->codec->time_base);
691 if (of->start_time && filtered_frame->pts < 0) {
692 av_frame_unref(filtered_frame);
697 switch (ost->filter->filter->inputs[0]->type) {
698 case AVMEDIA_TYPE_VIDEO:
699 if (!ost->frame_aspect_ratio)
700 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
702 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
703 if (vstats_filename && frame_size)
704 do_video_stats(ost, frame_size);
706 case AVMEDIA_TYPE_AUDIO:
707 do_audio_out(of->ctx, ost, filtered_frame);
710 // TODO support subtitle filters
714 av_frame_unref(filtered_frame);
720 * Read as many frames from possible from lavfi and encode them.
722 * Always read from the active stream with the lowest timestamp. If no frames
723 * are available for it then return EAGAIN and wait for more input. This way we
724 * can use lavfi sources that generate unlimited amount of frames without memory
727 static int poll_filters(void)
731 while (ret >= 0 && !received_sigterm) {
732 OutputStream *ost = NULL;
733 int64_t min_pts = INT64_MAX;
735 /* choose output stream with the lowest timestamp */
736 for (i = 0; i < nb_output_streams; i++) {
737 int64_t pts = output_streams[i]->sync_opts;
739 if (!output_streams[i]->filter || output_streams[i]->finished)
742 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
746 ost = output_streams[i];
753 ret = poll_filter(ost);
755 if (ret == AVERROR_EOF) {
756 OutputFile *of = output_files[ost->file_index];
761 for (j = 0; j < of->ctx->nb_streams; j++)
762 output_streams[of->ost_index + j]->finished = 1;
766 } else if (ret == AVERROR(EAGAIN))
773 static void print_report(int is_last_report, int64_t timer_start)
780 int frame_number, vid, i;
781 double bitrate, ti1, pts;
782 static int64_t last_time = -1;
783 static int qp_histogram[52];
785 if (!print_stats && !is_last_report)
788 if (!is_last_report) {
790 /* display the report every 0.5 seconds */
791 cur_time = av_gettime();
792 if (last_time == -1) {
793 last_time = cur_time;
796 if ((cur_time - last_time) < 500000)
798 last_time = cur_time;
802 oc = output_files[0]->ctx;
804 total_size = avio_size(oc->pb);
805 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
806 total_size = avio_tell(oc->pb);
807 if (total_size < 0) {
809 av_strerror(total_size, errbuf, sizeof(errbuf));
810 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
811 "avio_tell() failed: %s\n", errbuf);
818 for (i = 0; i < nb_output_streams; i++) {
820 ost = output_streams[i];
821 enc = ost->st->codec;
822 if (!ost->stream_copy && enc->coded_frame)
823 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
824 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
825 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
827 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
828 float t = (av_gettime() - timer_start) / 1000000.0;
830 frame_number = ost->frame_number;
831 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
832 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
834 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
838 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
840 for (j = 0; j < 32; j++)
841 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
843 if (enc->flags&CODEC_FLAG_PSNR) {
845 double error, error_sum = 0;
846 double scale, scale_sum = 0;
847 char type[3] = { 'Y','U','V' };
848 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
849 for (j = 0; j < 3; j++) {
850 if (is_last_report) {
851 error = enc->error[j];
852 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
854 error = enc->coded_frame->error[j];
855 scale = enc->width * enc->height * 255.0 * 255.0;
861 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
863 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
867 /* compute min output value */
868 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
869 if ((pts < ti1) && (pts > 0))
875 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
877 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
878 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
879 (double)total_size / 1024, ti1, bitrate);
881 if (nb_frames_dup || nb_frames_drop)
882 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
883 nb_frames_dup, nb_frames_drop);
885 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
889 if (is_last_report) {
890 int64_t raw= audio_size + video_size + extra_size;
891 av_log(NULL, AV_LOG_INFO, "\n");
892 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
896 100.0 * (total_size - raw) / raw
901 static void flush_encoders(void)
905 for (i = 0; i < nb_output_streams; i++) {
906 OutputStream *ost = output_streams[i];
907 AVCodecContext *enc = ost->st->codec;
908 AVFormatContext *os = output_files[ost->file_index]->ctx;
909 int stop_encoding = 0;
911 if (!ost->encoding_needed)
914 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
916 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
920 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
924 switch (ost->st->codec->codec_type) {
925 case AVMEDIA_TYPE_AUDIO:
926 encode = avcodec_encode_audio2;
930 case AVMEDIA_TYPE_VIDEO:
931 encode = avcodec_encode_video2;
942 av_init_packet(&pkt);
946 ret = encode(enc, &pkt, NULL, &got_packet);
948 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
952 if (ost->logfile && enc->stats_out) {
953 fprintf(ost->logfile, "%s", enc->stats_out);
959 if (pkt.pts != AV_NOPTS_VALUE)
960 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
961 if (pkt.dts != AV_NOPTS_VALUE)
962 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
963 if (pkt.duration > 0)
964 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
965 write_frame(os, &pkt, ost);
975 * Check whether a packet from ist should be written into ost at this time
977 static int check_output_constraints(InputStream *ist, OutputStream *ost)
979 OutputFile *of = output_files[ost->file_index];
980 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
982 if (ost->source_index != ist_index)
985 if (of->start_time && ist->last_dts < of->start_time)
991 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
993 OutputFile *of = output_files[ost->file_index];
994 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
997 av_init_packet(&opkt);
999 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1000 !ost->copy_initial_nonkeyframes)
1003 if (of->recording_time != INT64_MAX &&
1004 ist->last_dts >= of->recording_time + of->start_time) {
1009 /* force the input stream PTS */
1010 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1011 audio_size += pkt->size;
1012 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1013 video_size += pkt->size;
1017 if (pkt->pts != AV_NOPTS_VALUE)
1018 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1020 opkt.pts = AV_NOPTS_VALUE;
1022 if (pkt->dts == AV_NOPTS_VALUE)
1023 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1025 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1026 opkt.dts -= ost_tb_start_time;
1028 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1029 opkt.flags = pkt->flags;
1031 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1032 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1033 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1034 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1035 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1037 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) {
1038 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1043 opkt.data = pkt->data;
1044 opkt.size = pkt->size;
1047 write_frame(of->ctx, &opkt, ost);
1048 ost->st->codec->frame_number++;
1051 static void rate_emu_sleep(InputStream *ist)
1053 if (input_files[ist->file_index]->rate_emu) {
1054 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1055 int64_t now = av_gettime() - ist->start;
1057 av_usleep(pts - now);
1061 int guess_input_channel_layout(InputStream *ist)
1063 AVCodecContext *dec = ist->st->codec;
1065 if (!dec->channel_layout) {
1066 char layout_name[256];
1068 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1069 if (!dec->channel_layout)
1071 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1072 dec->channels, dec->channel_layout);
1073 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1074 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1079 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1081 AVFrame *decoded_frame, *f;
1082 AVCodecContext *avctx = ist->st->codec;
1083 int i, ret, err = 0, resample_changed;
1085 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1086 return AVERROR(ENOMEM);
1087 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1088 return AVERROR(ENOMEM);
1089 decoded_frame = ist->decoded_frame;
1091 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1092 if (!*got_output || ret < 0) {
1094 for (i = 0; i < ist->nb_filters; i++)
1095 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1100 /* if the decoder provides a pts, use it instead of the last packet pts.
1101 the decoder could be delaying output by a packet or more. */
1102 if (decoded_frame->pts != AV_NOPTS_VALUE)
1103 ist->next_dts = decoded_frame->pts;
1104 else if (pkt->pts != AV_NOPTS_VALUE) {
1105 decoded_frame->pts = pkt->pts;
1106 pkt->pts = AV_NOPTS_VALUE;
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 if (i < ist->nb_filters - 1) {
1158 f = ist->filter_frame;
1159 err = av_frame_ref(f, decoded_frame);
1165 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1170 av_frame_unref(ist->filter_frame);
1171 av_frame_unref(decoded_frame);
1172 return err < 0 ? err : ret;
1175 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1177 AVFrame *decoded_frame, *f;
1178 void *buffer_to_free = NULL;
1179 int i, ret = 0, err = 0, resample_changed;
1181 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1182 return AVERROR(ENOMEM);
1183 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1184 return AVERROR(ENOMEM);
1185 decoded_frame = ist->decoded_frame;
1187 ret = avcodec_decode_video2(ist->st->codec,
1188 decoded_frame, got_output, pkt);
1189 if (!*got_output || ret < 0) {
1191 for (i = 0; i < ist->nb_filters; i++)
1192 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1197 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1198 decoded_frame->pkt_dts);
1200 #if FF_API_DEINTERLACE
1201 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1204 rate_emu_sleep(ist);
1206 if (ist->st->sample_aspect_ratio.num)
1207 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1209 resample_changed = ist->resample_width != decoded_frame->width ||
1210 ist->resample_height != decoded_frame->height ||
1211 ist->resample_pix_fmt != decoded_frame->format;
1212 if (resample_changed) {
1213 av_log(NULL, AV_LOG_INFO,
1214 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1215 ist->file_index, ist->st->index,
1216 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1217 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1219 ret = poll_filters();
1220 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1221 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1223 ist->resample_width = decoded_frame->width;
1224 ist->resample_height = decoded_frame->height;
1225 ist->resample_pix_fmt = decoded_frame->format;
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 for (i = 0; i < ist->nb_filters; i++) {
1236 if (i < ist->nb_filters - 1) {
1237 f = ist->filter_frame;
1238 err = av_frame_ref(f, decoded_frame);
1244 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1249 av_frame_unref(ist->filter_frame);
1250 av_frame_unref(decoded_frame);
1251 av_free(buffer_to_free);
1252 return err < 0 ? err : ret;
1255 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1257 AVSubtitle subtitle;
1258 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1259 &subtitle, got_output, pkt);
1265 rate_emu_sleep(ist);
1267 for (i = 0; i < nb_output_streams; i++) {
1268 OutputStream *ost = output_streams[i];
1270 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1273 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1276 avsubtitle_free(&subtitle);
1280 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1281 static int output_packet(InputStream *ist, const AVPacket *pkt)
1287 if (ist->next_dts == AV_NOPTS_VALUE)
1288 ist->next_dts = ist->last_dts;
1292 av_init_packet(&avpkt);
1300 if (pkt->dts != AV_NOPTS_VALUE)
1301 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1303 // while we have more to decode or while the decoder did output something on EOF
1304 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1308 ist->last_dts = ist->next_dts;
1310 if (avpkt.size && avpkt.size != pkt->size) {
1311 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1312 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1313 ist->showed_multi_packet_warning = 1;
1316 switch (ist->st->codec->codec_type) {
1317 case AVMEDIA_TYPE_AUDIO:
1318 ret = decode_audio (ist, &avpkt, &got_output);
1320 case AVMEDIA_TYPE_VIDEO:
1321 ret = decode_video (ist, &avpkt, &got_output);
1323 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1324 else if (ist->st->avg_frame_rate.num)
1325 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1327 else if (ist->st->codec->time_base.num != 0) {
1328 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1329 ist->st->codec->ticks_per_frame;
1330 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1333 case AVMEDIA_TYPE_SUBTITLE:
1334 ret = transcode_subtitles(ist, &avpkt, &got_output);
1342 // touch data and size only if not EOF
1352 /* handle stream copy */
1353 if (!ist->decoding_needed) {
1354 rate_emu_sleep(ist);
1355 ist->last_dts = ist->next_dts;
1356 switch (ist->st->codec->codec_type) {
1357 case AVMEDIA_TYPE_AUDIO:
1358 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1359 ist->st->codec->sample_rate;
1361 case AVMEDIA_TYPE_VIDEO:
1362 if (ist->st->codec->time_base.num != 0) {
1363 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1364 ist->next_dts += ((int64_t)AV_TIME_BASE *
1365 ist->st->codec->time_base.num * ticks) /
1366 ist->st->codec->time_base.den;
1371 for (i = 0; pkt && i < nb_output_streams; i++) {
1372 OutputStream *ost = output_streams[i];
1374 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1377 do_streamcopy(ist, ost, pkt);
1383 static void print_sdp(void)
1387 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1391 for (i = 0; i < nb_output_files; i++)
1392 avc[i] = output_files[i]->ctx;
1394 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1395 printf("SDP:\n%s\n", sdp);
1400 static int init_input_stream(int ist_index, char *error, int error_len)
1403 InputStream *ist = input_streams[ist_index];
1404 if (ist->decoding_needed) {
1405 AVCodec *codec = ist->dec;
1407 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1408 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1409 return AVERROR(EINVAL);
1412 /* update requested sample format for the decoder based on the
1413 corresponding encoder sample format */
1414 for (i = 0; i < nb_output_streams; i++) {
1415 OutputStream *ost = output_streams[i];
1416 if (ost->source_index == ist_index) {
1417 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1422 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1424 if (!av_dict_get(ist->opts, "threads", NULL, 0))
1425 av_dict_set(&ist->opts, "threads", "auto", 0);
1426 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
1427 if (ret == AVERROR_EXPERIMENTAL)
1428 abort_codec_experimental(codec, 0);
1429 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
1430 ist->file_index, ist->st->index);
1433 assert_avoptions(ist->opts);
1436 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;
1437 ist->next_dts = AV_NOPTS_VALUE;
1438 init_pts_correction(&ist->pts_ctx);
1444 static InputStream *get_input_stream(OutputStream *ost)
1446 if (ost->source_index >= 0)
1447 return input_streams[ost->source_index];
1450 FilterGraph *fg = ost->filter->graph;
1453 for (i = 0; i < fg->nb_inputs; i++)
1454 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1455 return fg->inputs[i]->ist;
1461 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1462 AVCodecContext *avctx)
1468 for (p = kf; *p; p++)
1471 ost->forced_kf_count = n;
1472 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1473 if (!ost->forced_kf_pts) {
1474 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1479 for (i = 0; i < n; i++) {
1480 char *next = strchr(p, ',');
1485 t = parse_time_or_die("force_key_frames", p, 1);
1486 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1492 static int transcode_init(void)
1494 int ret = 0, i, j, k;
1495 AVFormatContext *oc;
1496 AVCodecContext *codec;
1502 /* init framerate emulation */
1503 for (i = 0; i < nb_input_files; i++) {
1504 InputFile *ifile = input_files[i];
1505 if (ifile->rate_emu)
1506 for (j = 0; j < ifile->nb_streams; j++)
1507 input_streams[j + ifile->ist_index]->start = av_gettime();
1510 /* output stream init */
1511 for (i = 0; i < nb_output_files; i++) {
1512 oc = output_files[i]->ctx;
1513 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1514 av_dump_format(oc, i, oc->filename, 1);
1515 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1516 return AVERROR(EINVAL);
1520 /* init complex filtergraphs */
1521 for (i = 0; i < nb_filtergraphs; i++)
1522 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1525 /* for each output stream, we compute the right encoding parameters */
1526 for (i = 0; i < nb_output_streams; i++) {
1527 AVCodecContext *icodec = NULL;
1528 ost = output_streams[i];
1529 oc = output_files[ost->file_index]->ctx;
1530 ist = get_input_stream(ost);
1532 if (ost->attachment_filename)
1535 codec = ost->st->codec;
1538 icodec = ist->st->codec;
1540 ost->st->disposition = ist->st->disposition;
1541 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
1542 codec->chroma_sample_location = icodec->chroma_sample_location;
1545 if (ost->stream_copy) {
1546 uint64_t extra_size;
1548 av_assert0(ist && !ost->filter);
1550 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1552 if (extra_size > INT_MAX) {
1553 return AVERROR(EINVAL);
1556 /* if stream_copy is selected, no need to decode or encode */
1557 codec->codec_id = icodec->codec_id;
1558 codec->codec_type = icodec->codec_type;
1560 if (!codec->codec_tag) {
1561 if (!oc->oformat->codec_tag ||
1562 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
1563 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
1564 codec->codec_tag = icodec->codec_tag;
1567 codec->bit_rate = icodec->bit_rate;
1568 codec->rc_max_rate = icodec->rc_max_rate;
1569 codec->rc_buffer_size = icodec->rc_buffer_size;
1570 codec->field_order = icodec->field_order;
1571 codec->extradata = av_mallocz(extra_size);
1572 if (!codec->extradata) {
1573 return AVERROR(ENOMEM);
1575 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1576 codec->extradata_size = icodec->extradata_size;
1578 codec->time_base = icodec->time_base;
1579 codec->time_base.num *= icodec->ticks_per_frame;
1580 av_reduce(&codec->time_base.num, &codec->time_base.den,
1581 codec->time_base.num, codec->time_base.den, INT_MAX);
1583 codec->time_base = ist->st->time_base;
1585 switch (codec->codec_type) {
1586 case AVMEDIA_TYPE_AUDIO:
1587 if (audio_volume != 256) {
1588 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1591 codec->channel_layout = icodec->channel_layout;
1592 codec->sample_rate = icodec->sample_rate;
1593 codec->channels = icodec->channels;
1594 codec->frame_size = icodec->frame_size;
1595 codec->audio_service_type = icodec->audio_service_type;
1596 codec->block_align = icodec->block_align;
1598 case AVMEDIA_TYPE_VIDEO:
1599 codec->pix_fmt = icodec->pix_fmt;
1600 codec->width = icodec->width;
1601 codec->height = icodec->height;
1602 codec->has_b_frames = icodec->has_b_frames;
1603 if (!codec->sample_aspect_ratio.num) {
1604 codec->sample_aspect_ratio =
1605 ost->st->sample_aspect_ratio =
1606 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1607 ist->st->codec->sample_aspect_ratio.num ?
1608 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1611 case AVMEDIA_TYPE_SUBTITLE:
1612 codec->width = icodec->width;
1613 codec->height = icodec->height;
1615 case AVMEDIA_TYPE_DATA:
1616 case AVMEDIA_TYPE_ATTACHMENT:
1623 /* should only happen when a default codec is not present. */
1624 snprintf(error, sizeof(error), "Automatic encoder selection "
1625 "failed for output stream #%d:%d. Default encoder for "
1626 "format %s is probably disabled. Please choose an "
1627 "encoder manually.\n", ost->file_index, ost->index,
1629 ret = AVERROR(EINVAL);
1634 ist->decoding_needed = 1;
1635 ost->encoding_needed = 1;
1638 * We want CFR output if and only if one of those is true:
1639 * 1) user specified output framerate with -r
1640 * 2) user specified -vsync cfr
1641 * 3) output format is CFR and the user didn't force vsync to
1642 * something else than CFR
1644 * in such a case, set ost->frame_rate
1646 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1647 !ost->frame_rate.num && ist &&
1648 (video_sync_method == VSYNC_CFR ||
1649 (video_sync_method == VSYNC_AUTO &&
1650 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1651 ost->frame_rate = ist->framerate.num ? ist->framerate :
1652 ist->st->avg_frame_rate.num ?
1653 ist->st->avg_frame_rate :
1654 (AVRational){25, 1};
1656 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1657 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1658 ost->frame_rate = ost->enc->supported_framerates[idx];
1663 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
1664 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
1666 fg = init_simple_filtergraph(ist, ost);
1667 if (configure_filtergraph(fg)) {
1668 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1673 switch (codec->codec_type) {
1674 case AVMEDIA_TYPE_AUDIO:
1675 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
1676 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1677 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1678 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
1679 codec->time_base = (AVRational){ 1, codec->sample_rate };
1681 case AVMEDIA_TYPE_VIDEO:
1682 codec->time_base = ost->filter->filter->inputs[0]->time_base;
1684 codec->width = ost->filter->filter->inputs[0]->w;
1685 codec->height = ost->filter->filter->inputs[0]->h;
1686 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1687 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1688 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
1689 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1690 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
1693 (codec->width != icodec->width ||
1694 codec->height != icodec->height ||
1695 codec->pix_fmt != icodec->pix_fmt)) {
1696 codec->bits_per_raw_sample = 0;
1699 if (ost->forced_keyframes)
1700 parse_forced_key_frames(ost->forced_keyframes, ost,
1703 case AVMEDIA_TYPE_SUBTITLE:
1704 codec->time_base = (AVRational){1, 1000};
1711 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1712 char logfilename[1024];
1715 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1716 ost->logfile_prefix ? ost->logfile_prefix :
1717 DEFAULT_PASS_LOGFILENAME_PREFIX,
1719 if (!strcmp(ost->enc->name, "libx264")) {
1720 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1722 if (codec->flags & CODEC_FLAG_PASS1) {
1723 f = fopen(logfilename, "wb");
1725 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1726 logfilename, strerror(errno));
1732 size_t logbuffer_size;
1733 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1734 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1738 codec->stats_in = logbuffer;
1745 /* open each encoder */
1746 for (i = 0; i < nb_output_streams; i++) {
1747 ost = output_streams[i];
1748 if (ost->encoding_needed) {
1749 AVCodec *codec = ost->enc;
1750 AVCodecContext *dec = NULL;
1752 if ((ist = get_input_stream(ost)))
1753 dec = ist->st->codec;
1754 if (dec && dec->subtitle_header) {
1755 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1756 if (!ost->st->codec->subtitle_header) {
1757 ret = AVERROR(ENOMEM);
1760 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1761 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1763 if (!av_dict_get(ost->opts, "threads", NULL, 0))
1764 av_dict_set(&ost->opts, "threads", "auto", 0);
1765 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) {
1766 if (ret == AVERROR_EXPERIMENTAL)
1767 abort_codec_experimental(codec, 1);
1768 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1769 ost->file_index, ost->index);
1772 assert_avoptions(ost->opts);
1773 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1774 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1775 "It takes bits/s as argument, not kbits/s\n");
1776 extra_size += ost->st->codec->extradata_size;
1778 if (ost->st->codec->me_threshold)
1779 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
1781 av_opt_set_dict(ost->st->codec, &ost->opts);
1785 /* init input streams */
1786 for (i = 0; i < nb_input_streams; i++)
1787 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1790 /* discard unused programs */
1791 for (i = 0; i < nb_input_files; i++) {
1792 InputFile *ifile = input_files[i];
1793 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1794 AVProgram *p = ifile->ctx->programs[j];
1795 int discard = AVDISCARD_ALL;
1797 for (k = 0; k < p->nb_stream_indexes; k++)
1798 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1799 discard = AVDISCARD_DEFAULT;
1802 p->discard = discard;
1806 /* open files and write file headers */
1807 for (i = 0; i < nb_output_files; i++) {
1808 oc = output_files[i]->ctx;
1809 oc->interrupt_callback = int_cb;
1810 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1812 const char *errbuf_ptr = errbuf;
1813 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
1814 errbuf_ptr = strerror(AVUNERROR(ret));
1815 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
1816 ret = AVERROR(EINVAL);
1819 assert_avoptions(output_files[i]->opts);
1820 if (strcmp(oc->oformat->name, "rtp")) {
1826 /* dump the file output parameters - cannot be done before in case
1828 for (i = 0; i < nb_output_files; i++) {
1829 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1832 /* dump the stream mapping */
1833 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1834 for (i = 0; i < nb_input_streams; i++) {
1835 ist = input_streams[i];
1837 for (j = 0; j < ist->nb_filters; j++) {
1838 if (ist->filters[j]->graph->graph_desc) {
1839 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
1840 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
1841 ist->filters[j]->name);
1842 if (nb_filtergraphs > 1)
1843 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
1844 av_log(NULL, AV_LOG_INFO, "\n");
1849 for (i = 0; i < nb_output_streams; i++) {
1850 ost = output_streams[i];
1852 if (ost->attachment_filename) {
1853 /* an attached file */
1854 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
1855 ost->attachment_filename, ost->file_index, ost->index);
1859 if (ost->filter && ost->filter->graph->graph_desc) {
1860 /* output from a complex graph */
1861 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
1862 if (nb_filtergraphs > 1)
1863 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
1865 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
1866 ost->index, ost->enc ? ost->enc->name : "?");
1870 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
1871 input_streams[ost->source_index]->file_index,
1872 input_streams[ost->source_index]->st->index,
1875 if (ost->sync_ist != input_streams[ost->source_index])
1876 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
1877 ost->sync_ist->file_index,
1878 ost->sync_ist->st->index);
1879 if (ost->stream_copy)
1880 av_log(NULL, AV_LOG_INFO, " (copy)");
1882 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
1883 input_streams[ost->source_index]->dec->name : "?",
1884 ost->enc ? ost->enc->name : "?");
1885 av_log(NULL, AV_LOG_INFO, "\n");
1889 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
1900 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
1901 static int need_output(void)
1905 for (i = 0; i < nb_output_streams; i++) {
1906 OutputStream *ost = output_streams[i];
1907 OutputFile *of = output_files[ost->file_index];
1908 AVFormatContext *os = output_files[ost->file_index]->ctx;
1910 if (ost->finished ||
1911 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
1913 if (ost->frame_number >= ost->max_frames) {
1915 for (j = 0; j < of->ctx->nb_streams; j++)
1916 output_streams[of->ost_index + j]->finished = 1;
1926 static InputFile *select_input_file(void)
1928 InputFile *ifile = NULL;
1929 int64_t ipts_min = INT64_MAX;
1932 for (i = 0; i < nb_input_streams; i++) {
1933 InputStream *ist = input_streams[i];
1934 int64_t ipts = ist->last_dts;
1936 if (ist->discard || input_files[ist->file_index]->eagain)
1938 if (!input_files[ist->file_index]->eof_reached) {
1939 if (ipts < ipts_min) {
1941 ifile = input_files[ist->file_index];
1950 static void *input_thread(void *arg)
1955 while (!transcoding_finished && ret >= 0) {
1957 ret = av_read_frame(f->ctx, &pkt);
1959 if (ret == AVERROR(EAGAIN)) {
1966 pthread_mutex_lock(&f->fifo_lock);
1967 while (!av_fifo_space(f->fifo))
1968 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
1970 av_dup_packet(&pkt);
1971 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
1973 pthread_mutex_unlock(&f->fifo_lock);
1980 static void free_input_threads(void)
1984 if (nb_input_files == 1)
1987 transcoding_finished = 1;
1989 for (i = 0; i < nb_input_files; i++) {
1990 InputFile *f = input_files[i];
1993 if (!f->fifo || f->joined)
1996 pthread_mutex_lock(&f->fifo_lock);
1997 while (av_fifo_size(f->fifo)) {
1998 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
1999 av_free_packet(&pkt);
2001 pthread_cond_signal(&f->fifo_cond);
2002 pthread_mutex_unlock(&f->fifo_lock);
2004 pthread_join(f->thread, NULL);
2007 while (av_fifo_size(f->fifo)) {
2008 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2009 av_free_packet(&pkt);
2011 av_fifo_free(f->fifo);
2015 static int init_input_threads(void)
2019 if (nb_input_files == 1)
2022 for (i = 0; i < nb_input_files; i++) {
2023 InputFile *f = input_files[i];
2025 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2026 return AVERROR(ENOMEM);
2028 pthread_mutex_init(&f->fifo_lock, NULL);
2029 pthread_cond_init (&f->fifo_cond, NULL);
2031 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2032 return AVERROR(ret);
2037 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2041 pthread_mutex_lock(&f->fifo_lock);
2043 if (av_fifo_size(f->fifo)) {
2044 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2045 pthread_cond_signal(&f->fifo_cond);
2050 ret = AVERROR(EAGAIN);
2053 pthread_mutex_unlock(&f->fifo_lock);
2059 static int get_input_packet(InputFile *f, AVPacket *pkt)
2062 if (nb_input_files > 1)
2063 return get_input_packet_mt(f, pkt);
2065 return av_read_frame(f->ctx, pkt);
2068 static int got_eagain(void)
2071 for (i = 0; i < nb_input_files; i++)
2072 if (input_files[i]->eagain)
2077 static void reset_eagain(void)
2080 for (i = 0; i < nb_input_files; i++)
2081 input_files[i]->eagain = 0;
2085 * Read one packet from an input file and send it for
2086 * - decoding -> lavfi (audio/video)
2087 * - decoding -> encoding -> muxing (subtitles)
2088 * - muxing (streamcopy)
2091 * - 0 -- one packet was read and processed
2092 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2093 * this function should be called again
2094 * - AVERROR_EOF -- this function should not be called again
2096 static int process_input(void)
2099 AVFormatContext *is;
2104 /* select the stream that we must read now */
2105 ifile = select_input_file();
2106 /* if none, if is finished */
2111 return AVERROR(EAGAIN);
2113 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2118 ret = get_input_packet(ifile, &pkt);
2120 if (ret == AVERROR(EAGAIN)) {
2125 if (ret != AVERROR_EOF) {
2126 print_error(is->filename, ret);
2130 ifile->eof_reached = 1;
2132 for (i = 0; i < ifile->nb_streams; i++) {
2133 ist = input_streams[ifile->ist_index + i];
2134 if (ist->decoding_needed)
2135 output_packet(ist, NULL);
2137 /* mark all outputs that don't go through lavfi as finished */
2138 for (j = 0; j < nb_output_streams; j++) {
2139 OutputStream *ost = output_streams[j];
2141 if (ost->source_index == ifile->ist_index + i &&
2142 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2147 return AVERROR(EAGAIN);
2153 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2154 is->streams[pkt.stream_index]);
2156 /* the following test is needed in case new streams appear
2157 dynamically in stream : we ignore them */
2158 if (pkt.stream_index >= ifile->nb_streams)
2159 goto discard_packet;
2161 ist = input_streams[ifile->ist_index + pkt.stream_index];
2163 goto discard_packet;
2165 if (pkt.dts != AV_NOPTS_VALUE)
2166 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2167 if (pkt.pts != AV_NOPTS_VALUE)
2168 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2170 if (pkt.pts != AV_NOPTS_VALUE)
2171 pkt.pts *= ist->ts_scale;
2172 if (pkt.dts != AV_NOPTS_VALUE)
2173 pkt.dts *= ist->ts_scale;
2175 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2176 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2177 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2178 int64_t delta = pkt_dts - ist->next_dts;
2180 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2181 ifile->ts_offset -= delta;
2182 av_log(NULL, AV_LOG_DEBUG,
2183 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2184 delta, ifile->ts_offset);
2185 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2186 if (pkt.pts != AV_NOPTS_VALUE)
2187 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2191 ret = output_packet(ist, &pkt);
2193 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2194 ist->file_index, ist->st->index);
2200 av_free_packet(&pkt);
2206 * The following code is the main loop of the file converter
2208 static int transcode(void)
2210 int ret, i, need_input = 1;
2211 AVFormatContext *os;
2214 int64_t timer_start;
2216 ret = transcode_init();
2220 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2223 timer_start = av_gettime();
2226 if ((ret = init_input_threads()) < 0)
2230 while (!received_sigterm) {
2231 /* check if there's any stream where output is still needed */
2232 if (!need_output()) {
2233 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2237 /* read and process one input packet if needed */
2239 ret = process_input();
2240 if (ret == AVERROR_EOF)
2244 ret = poll_filters();
2246 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2249 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2253 /* dump report by using the output first video and audio streams */
2254 print_report(0, timer_start);
2257 free_input_threads();
2260 /* at the end of stream, we must flush the decoder buffers */
2261 for (i = 0; i < nb_input_streams; i++) {
2262 ist = input_streams[i];
2263 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2264 output_packet(ist, NULL);
2272 /* write the trailer if needed and close file */
2273 for (i = 0; i < nb_output_files; i++) {
2274 os = output_files[i]->ctx;
2275 av_write_trailer(os);
2278 /* dump report by using the first video and audio streams */
2279 print_report(1, timer_start);
2281 /* close each encoder */
2282 for (i = 0; i < nb_output_streams; i++) {
2283 ost = output_streams[i];
2284 if (ost->encoding_needed) {
2285 av_freep(&ost->st->codec->stats_in);
2286 avcodec_close(ost->st->codec);
2290 /* close each decoder */
2291 for (i = 0; i < nb_input_streams; i++) {
2292 ist = input_streams[i];
2293 if (ist->decoding_needed) {
2294 avcodec_close(ist->st->codec);
2303 free_input_threads();
2306 if (output_streams) {
2307 for (i = 0; i < nb_output_streams; i++) {
2308 ost = output_streams[i];
2310 if (ost->stream_copy)
2311 av_freep(&ost->st->codec->extradata);
2313 fclose(ost->logfile);
2314 ost->logfile = NULL;
2316 av_freep(&ost->st->codec->subtitle_header);
2317 av_free(ost->forced_kf_pts);
2318 av_dict_free(&ost->opts);
2319 av_dict_free(&ost->resample_opts);
2326 static int64_t getutime(void)
2329 struct rusage rusage;
2331 getrusage(RUSAGE_SELF, &rusage);
2332 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2333 #elif HAVE_GETPROCESSTIMES
2335 FILETIME c, e, k, u;
2336 proc = GetCurrentProcess();
2337 GetProcessTimes(proc, &c, &e, &k, &u);
2338 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2340 return av_gettime();
2344 static int64_t getmaxrss(void)
2346 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2347 struct rusage rusage;
2348 getrusage(RUSAGE_SELF, &rusage);
2349 return (int64_t)rusage.ru_maxrss * 1024;
2350 #elif HAVE_GETPROCESSMEMORYINFO
2352 PROCESS_MEMORY_COUNTERS memcounters;
2353 proc = GetCurrentProcess();
2354 memcounters.cb = sizeof(memcounters);
2355 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2356 return memcounters.PeakPagefileUsage;
2362 int main(int argc, char **argv)
2367 atexit(exit_program);
2369 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2370 parse_loglevel(argc, argv, options);
2372 avcodec_register_all();
2374 avdevice_register_all();
2376 avfilter_register_all();
2378 avformat_network_init();
2382 /* parse options and open all input/output files */
2383 ret = avconv_parse_options(argc, argv);
2387 if (nb_output_files <= 0 && nb_input_files == 0) {
2389 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2393 /* file converter / grab */
2394 if (nb_output_files <= 0) {
2395 fprintf(stderr, "At least one output file must be specified\n");
2400 if (transcode() < 0)
2402 ti = getutime() - ti;
2404 int maxrss = getmaxrss() / 1024;
2405 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);