Differences

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--- melt [2015/04/17 17:35] – [dg50 encoding] bjoern
+++ melt [2018/10/24 11:13] – [VOC export profile encoding profile] bjoern
@@ Line 1: / Line 1: @@
+= melt encoding sniplets
+siehe auch https://www.mltframework.org/plugins/ConsumerAvformat/
+== VOC export profile encoding profile
+  * XML code for manually editing the mlt file
+<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>
+  * if you want to endoder with Shotcut, add a new profile and paste the following options:
+<code>
+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
+vpre=medium
+r=50
+height=1080
+minrate=100k
+acodec=aac
+deinterlace_method=yadif
+crf=21
+ar=48000
+vprofile=main
+movflags=+faststart
+</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>