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| melt [2015/04/17 17:21] – [dg50 encoding] bjoern | melt [2018/06/14 01:52] – [shotcut/kdenlive project file rendern] andi |
|---|
| | = melt encoding sniplets |
| |
| | siehe auch https://www.mltframework.org/plugins/ConsumerAvformat/ |
| | |
| | == VOC export profile encoding profile |
| | <code> |
| | <consumer pix_fmt="yuv420p" rescale="bilinear" width="1920" aspect="1,77778" top_field_first="2" preset="medium" f="mp4" flags2="-dct8x8" g="13" maxrate="5000k" bufsize="8192k" threads="0" vcodec="libx264" progressive="1" real_time="-3" bf="2" ab="192k" target="/mnt/usb/lnp256_fade2b.mp4" vpre="medium" r="50" height="1080" minrate="100k " acodec="aac" deinterlace_method="yadif" crf="21" ar="48000" vprofile="main" movflags="+faststart" mlt_service="avformat"/> |
| | </code> |
| | |
| | == group sniplets to uncut.mlt |
| | <code> |
| | melt -consumer xml babylon-2018-05-26_21-08-38-22834.ts babylon-2018-05-26_21-11-38-22834.ts > uncut.mlt |
| | </code> |
| | |
| | |
| | == dg50 encoding |
| | Direkter encode aus den fuse-ts files |
| | <code> |
| | /home/voc/Shotcut.app/melt -progress -track \ |
| | /video/datengarten/intros/50.ts \ |
| | /opt/crs/fuse/datengarten/hd-capture-2/50/uncut.ts in=1857 out=$((1*60*60*25+3*60*25+52*25)) \ |
| | /opt/crs/fuse/datengarten/hd-capture-2/50/uncut.ts in=$((1*60*60*25+18*60*25+2*25)) out=162370 \ |
| | /video/datengarten/intros/outro.ts \ |
| | -attach-track frei0r.hqdn3d \ |
| | -consumer avformat:/video/datengarten/tmp/dg50-out3.mp4 f=mp4 acodec=aac ab=192k \ |
| | vcodec=libx264 crf=20 vminrate=100k vmaxrate=5000k vpreset="medium" \ |
| | movflags=+faststart bufsize=8192k pix_fmt=yuv420p threads=8 |
| | </code> |
| | |
| | Reencode des fertigen hd.mp4 um die pause herauszuschneiden (pause 1:04:00 -> 1:18:11) |
| | <code> |
| | melt -progress \ |
| | /video/datengarten/tmp/50-hd-camonly.mp4 in=0 out=96000 \ |
| | /video/datengarten/tmp/50-hd-camonly.mp4 in=117275 \ |
| | -consumer avformat:/home/voc/dg50-out.mp4 f=mp4 acodec=aac ab=192k vcodec=libx264 crf=20\ |
| | bufsize=8192k minrate=100k maxrate=5000k vprofile=main vlevel=4.0 movflags=+faststart pix_fmt=yuv420p |
| | </code> |
| | |
| | == timvideo |
| | <code>xvfb-run -a melt /encode-final/lca2014-intro.dv \ |
| | -filter watermark:"/encode-tmp/gentilli/101/101-title.png" \ |
| | in=300 out=500 composite.progressive=1 producer.align=centre composite.valign=c composite.halign=c \ |
| | /encode-tmp/gentilli/101/start-101.dv \ |
| | /encode-tmp/gentilli/101/2014-01-09_15-42-23.dv \ |
| | /encode-tmp/gentilli/101/2014-01-09_16-18-04.dv \ |
| | /encode-tmp/getilli/101/2014-01-09_16-21-59.dv \ |
| | /encode-fin1al/lca2014-exit.dv -consumer avformat |
| | </code> |
| | |
| | == channel mapping |
| | melt ./${file[$i]} $INOUT -profile pal -filter channelcopy to=1 from=0 \ |
| | -consumer avformat:./${output[$i]}.webm progress=1 vb=1000k quality=good deadline=good \ |
| | deinterlace=1 deinterlace_method=yadif |
| | |
| | == shotcut/kdenlive project file rendern |
| | |
| | mono mp4 z.B. Repair mit Backup Recording aus Kamera rendern: |
| | |
| | melt -progress -track --project 1005.mlt -consumer avformat:./1005-cut.mp4 f=mp4 acodec=aac ab=192k channels=1 vcodec=libx264 crf=20 bufsize=8192k minrate=100k maxrate=5000k vprofile=main vlevel=4.0 movflags=+faststart pix_fmt=yuv420p |
| | |
| | |
| | == melt transcode (fosdem) |
| | <code bash> |
| | #!/bin/bash |
| | # |
| | # (c) 2013-2015 Holger Levsen holger@layer-acht.org |
| | # GPL2 licenced |
| | |
| | title[0]="Stretching out for trustworthy reproducible builds" |
| | speaker[0]="Holger and Lunar" |
| | file[0]="k1105_la_fontaine_a_31_142433.mp4" |
| | begin_offset[0]="9385" |
| | end_offset[0]="17913" |
| | |
| | |
| | videos=1 |
| | |
| | for i in $(seq 0 $videos) ; do |
| | if [ -z "${file[$i]}" ] ; then |
| | continue |
| | fi |
| | if [ -z "${speaker[$i]}" ] ; then |
| | echo "${title[$i]} using ${file[$i]}" |
| | output[$i]=$(echo ${title[$i]} | sed -s "s# #_#g" ) |
| | else |
| | echo "${title[$i]} by ${speaker[$i]} using ${file[$i]}" |
| | output[$i]=$(echo ${title[$i]} by ${speaker[$i]} | sed -s "s# #_#g" ) |
| | fi |
| | echo " -> ${output[$i]}" |
| | IN="" |
| | OUT="" |
| | # 25 frames per second |
| | if [ ! -z ${begin_offset[$i]} ] ; then |
| | IN="in=$(echo ${begin_offset[$i]}*25|bc)" |
| | fi |
| | if [ ! -z ${end_offset[$i]} ] ; then |
| | OUT="out=$(echo ${end_offset[$i]}*25|bc)" |
| | fi |
| | INOUT="$IN $OUT" |
| | echo $INOUT |
| | if [ ! -f ./${output[$i]}.webm ] ; then |
| | melt ./${file[$i]} $INOUT -profile pal -filter channelcopy to=1 from=0 \ |
| | -consumer avformat:./${output[$i]}.webm progress=1 vb=1000k quality=good \ |
| | deadline=good deinterlace=1 deinterlace_method=yadif |
| | fi |
| | done |
| | </code> |