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avconv [2016/04/20 11:52] – created adminavconv [2017/02/01 12:24] (current) – [Generate HTML5 Videos] admin
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 avconv -i $IN -sn -y -b:v 2M -qscale $QSCALE $OUT.webm avconv -i $IN -sn -y -b:v 2M -qscale $QSCALE $OUT.webm
 avconv -i $IN -acodec libvorbis -vcodec libtheora -ac 2 -b:v 2M -qscale $QSCALE $OUT.ogv avconv -i $IN -acodec libvorbis -vcodec libtheora -ac 2 -b:v 2M -qscale $QSCALE $OUT.ogv
 +</code>
 +
 +===== Complete Script =====
 +
 +<code>
 +#!/bin/bash
 +# 2011 by zpea
 +# feel free to use as public domain / Creative Commons CC0 1.0 (http://creativecommons.org/publicdomain/zero/1.0/)
 +#
 +
 +#FFMPEG=/usr/bin/ffmpeg
 +FFMPEG=/opt/local/bin/ffmpeg
 +HD_SUFFIX='_hd'
 +EMBED_WIDTH='1920'
 +EMBED_HEIGHT='450'
 +SD_RESOLUTION=$EMBED_WIDTH'x'$EMBED_HEIGHT
 +SERVER_VIDEO_PATH='http://www.example.xx/media/video'
 +
 +DESCR_H264='mp4 (h.264/aac)'
 +DESCR_WEBM='webm (vp8/vorbis)'
 +DESCR_OGG='ogv (theora/vorbis)'
 +
 +function usage(){
 +  echo
 +  echo
 +  echo usage:
 +  echo $0' <input video file>'
 +  echo 
 +  echo 'The input video file is converted to '$DESCR_H264', '$DESCR_WEBM' and '$DESCR_OGG' videos.'
 +  echo
 +  echo 'For each format two versions are created, one "SD" version in low resolution ('$SD_RESOLUTION') and one "HD" version in original resolution (with the "'$HD_SUFFIX'" suffix in the name). Additionally a poster image is created from a screenshot.'
 +  echo
 +  echo 'All output files are created in the current working directory and named according to the input file'\''s name' 
 +  echo
 +  echo 'At the end a line for use with the videojs plugin for wordpress is generated. ("HD" versions are only useful with an adapted version of videojs)'
 +  echo
 +  echo
 +}
 +
 +
 +# exactly one argument required
 +if [ $# -ne 1 ]
 +then
 +  usage
 +  exit 1
 +fi
 +
 +INFILE=$1
 +if [ ! -f $INFILE]
 +then
 +  echo 'Input file does not exist or is not a regular file'
 +  exit 2
 +fi
 +
 +
 +
 +BASENAME=${1##*/}
 +BASE_WITHOUT_EXT=${BASENAME%.*}
 +
 +OUT_H264=$BASE_WITHOUT_EXT.mp4
 +#OUT_H264_HD=$BASE_WITHOUT_EXT$HD_SUFFIX.mp4
 +
 +OUT_WEBM=$BASE_WITHOUT_EXT.webm
 +#OUT_WEBM_HD=$BASE_WITHOUT_EXT$HD_SUFFIX.webm
 +
 +OUT_OGG=$BASE_WITHOUT_EXT.ogv
 +#OUT_OGG_HD=$BASE_WITHOUT_EXT$HD_SUFFIX.ogv
 +
 +OUT_JPEG=$BASE_WITHOUT_EXT.jpg
 +
 +# should be unnecessary thanks to -vpre baseline
 +#H264_OPTS_BASELINE="-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -me_method hex -subq 7 -trellis 1 -refs 5 -bf 0 -flags2 +mixed_refs -coder 0 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10 -qmax 51 -qdiff 4"
 +
 +
 +echo
 +echo ================================================================
 +echo '   Starting conversion to SD '$DESCR_H264
 +echo '   output to '$OUT_H264
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -b 1500k -vcodec libx264 -preset slow                          -s $SD_RESOLUTION -g 30 $OUT_H264
 +
 +#echo
 +#echo ================================================================
 +#echo '   Starting conversion to HD '$DESCR_H264
 +#echo '   output to '$OUT_H264_HD
 +#echo ================================================================
 +#echo
 +#$FFMPEG -i $INFILE -b 3800k -vcodec libx264 -preset libx264-slow -vpre libx264-baseline                           -g 30 $OUT_H264_HD
 +
 +
 +echo
 +echo ================================================================
 +echo '   Starting conversion to SD '$DESCR_WEBM
 +echo '   output to '$OUT_WEBM
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -b 1500k -vcodec libvpx                              -acodec libvorbis -ab 160000 -f webm    -s $SD_RESOLUTION -g 30 $OUT_WEBM
 +
 +echo
 +echo ================================================================
 +echo '   Starting conversion to HD '$DESCR_WEBM
 +echo '   output to '$OUT_WEBM_HD
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -b 3800k -vcodec libvpx                              -acodec libvorbis -ab 160000 -f webm    -g 30 $OUT_WEBM_HD
 +
 +
 +
 +echo
 +echo ================================================================
 +echo '   Starting conversion to SD '$DESCR_OGG
 +echo '   output to '$OUT_OGG
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -b 1500k -vcodec libtheora                           -acodec libvorbis -ab 160000            -s $SD_RESOLUTION -g 30 $OUT_OGG
 +
 +echo
 +echo ================================================================
 +echo '   Starting conversion to HD '$DESCR_OGG
 +echo '   output to '$OUT_OGG_HD
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -b 3800k -vcodec libtheora                           -acodec libvorbis -ab 160000            -g 30 $OUT_OGG_HD
 +
 +
 +
 +echo
 +echo ================================================================
 +echo '   Creating poster jpeg (frame at 5s)'
 +echo ================================================================
 +echo
 +$FFMPEG -i $INFILE -ss 00:05 -vframes 1 -r 1 -f image2 $OUT_JPEG
 +
 +
 +
 +echo
 +echo ================================================================
 +echo '   Tag for embedding'
 +echo ================================================================
 +echo
 +echo '[video webm="'$SERVER_VIDEO_PATH'/'$OUT_WEBM'" ogg="'$SERVER_VIDEO_PATH'/'$OUT_OGG'" mp4="'$SERVER_VIDEO_PATH'/'$OUT_H264'" poster="'$SERVER_VIDEO_PATH'/'$OUT_JPEG'" width="'$EMBED_WIDTH'" height="'$EMBED_HEIGHT'"]'
 </code> </code>
avconv.1461145924.txt.gz · Last modified: 2016/04/20 11:52 by admin

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