tc-video-custom: tc-video script generator for custom encoding
Pierre Neidhardt
parent
563e38d1c4
commit
dddf9e0eb2
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@ -13,3 +13,4 @@ sourceforge.net
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particuliers.societegenerale.fr
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particuliers.secure.societegenerale.fr
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aur.archlinux.org
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.imdb.com
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@ -0,0 +1,122 @@
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#!/bin/sh
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if [ -z "$(command -v ffmpeg)" ]; then
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echo "ffmpeg required."
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exit
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fi
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_transcode ()
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{
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## Zsh compatibility. We need it otherwise word splitting of parameter like
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## TC_SAMPLE will not work.
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STATUS="$(set -o | grep 'shwordsplit' | awk '{print $2}')"
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[ "$STATUS" = "off" ] && set -o shwordsplit
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ffmpeg -i "$@" \
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-c:v libx264 -preset slow -crf 20 \
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-c:a libvorbis -b:a 192k -ac 2 \
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-c:s copy \
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-map 0 \
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$TC_SAMPLE \
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"${1%.*}-$(date '+%F-%H%M%S').mkv"
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## Restore Zsh previous options. This will not turn off shwordsplit if it
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## was on before calling the function.
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[ "$STATUS" = "off" ] && set +o shwordsplit
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}
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_printhelp()
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{
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cat <<EOF
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Usage: ${1##*/} [-f] [FILES]
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Transcode FILES using custom FFmpeg command. By default FFmpeg will only encode
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a sample for preview purpose. Use the '-f' flag to process the complete file.
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Edit this file to fit your needs and learn more about FFmpeg.
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EOF
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}
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TC_SAMPLE="-ss 60 -t 360"
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while getopts ":hf" opt; do
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case $opt in
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h)
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_printhelp "$0"
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exit 1 ;;
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f)
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TC_SAMPLE="" ;;
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?)
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_printhelp "$0"
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exit 1 ;;
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:)
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echo "Missing argument."
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_printhelp "$0"
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exit 1 ;;
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esac
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done
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shift $(($OPTIND - 1))
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## Choose to process all files in one batch
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_transcode ###FILELIST
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## Or one after another.
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# while read -r i; do
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# _transcode "$i"
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# done<<EOF
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# ###FILELINES
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# EOF
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################################################################################
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## Help
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##
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## Intersting options:
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##
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## Exchange stream 1 an 2 by first removing them, then reading them in the
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## desired order.
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##
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## -map -0:1 -map -0:2 -map 0:2 -map 0:1
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##
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## Change audio stream 1 title and remove audio stream 2 title:
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##
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## -metadata:s:a:0 title="FR: OGG Stereo" -metadata:s:a:1 title=""
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##
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## Demux audio:
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## -vn -sn -c:a copy -map 0:1
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##
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## To dump audio to an ogg file:
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## -vn -c:a libvorbis -b:a 192k
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##
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## To check what fmmpeg supports:
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## $ ffmpeg -codecs
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## $ ffmpeg -formats
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##
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## Useful guides:
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## x264: http://ffmpeg.org/trac/ffmpeg/wiki/x264EncodingGuide
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## ID3 details: http://en.wikipedia.org/wiki/ID3
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##
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## Presets:
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## quality*size ~= 1/speed
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## ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow, placebo
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##
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## x264 overall quality (-crf) is a logarithmic scale.
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## 18 is near perfection.
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## 22 is really good compression, while a bit more blurry than the original.
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## 20 is a good compromise.
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##
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## x264 tuning (-tune <preset>).
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## Possible values: film, animation, grain, ...
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## See x264 --fullhelp.
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## No tuning by default.
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##
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## x264 options (-x264opts me=<value>).
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## Possible values: hex, umh...
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## me=umh is default.
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##
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## WARNING: you should consider mixing down audio to 2 channels with '-ac
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## 2'. This greatly reduce file size and avoid any confusion for playback, which
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## is often the case when converting DTS to any other format because DTS has
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## embedded channel description which is not available in other formats.
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##
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################################################################################
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@ -1,16 +0,0 @@
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#!/bin/sh
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if [ -z "$(command -v ffmpeg)" ]; then
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echo "ffmpeg required."
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exit
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fi
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if [ $# -ne 1 ]; then
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echo "Usage: ${0##*/} VIDEO"
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fi
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## TODO: getopt support for audio quality.
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TC_VIDEO_AUDIO_QUAL=192k
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echo "================================================================================"
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ffmpeg -i "$1" -vn -c:a libvorbis -b:a $TC_VIDEO_AUDIO_QUAL "${1%.*}-$(date '+%F-%H%M%S').ogg"
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@ -0,0 +1,46 @@
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#!/bin/sh
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_printhelp()
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{
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cat <<EOF
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Usage: ${1##*/} [FILES]
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Create a 'tc-video' script in current folder. The script provides a FFmpeg call
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command with some useful options and instructive help.
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FILES realpath will be included into the script.
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This script is meant to be easily editable to fit the user needs.
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EOF
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}
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if [ "$1" = "-h" ]; then
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_printhelp "$0"
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exit
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fi
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if [ -z "$(command -v realpath)" ]; then
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echo "realpath required."
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exit
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fi
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for i ; do
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REAL="$(realpath "$i")"
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FILELIST="${FILELIST:+$FILELIST }'$REAL'"
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FILELINES="${FILELINES:+$FILELINES
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}$REAL"
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done
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SCRIPT_PATH="${0%/*}"
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SCRIPT_NAME="${0##*/}"
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OUTPUT_NAME="tc-video"
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if [ -f "$SCRIPT_PATH/.$SCRIPT_NAME.in" ]; then
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cp -i "$SCRIPT_PATH/.$SCRIPT_NAME.in" "$OUTPUT_NAME"
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sed -i 's|###FILELIST|'"$FILELIST"'|' "$OUTPUT_NAME"
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sed -i 's|###FILELINES|'"$FILELINES"'|' "$OUTPUT_NAME"
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chmod +x "$OUTPUT_NAME"
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else
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echo ".$SCRIPT_NAME.in not found!"
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fi
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@ -1,13 +0,0 @@
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#!/bin/sh
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if [ -z "$(command -v ffmpeg)" ]; then
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echo "ffmpeg required."
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exit
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fi
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if [ $# -ne 2 ]; then
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echo "Usage: ${0##*/} VIDEO AUDIO_OUTPUT"
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exit
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fi
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ffmpeg -i "$1" -vn -sn -c:a copy -map 0:1 "$2"
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@ -1,53 +1,9 @@
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#!/bin/sh
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################################################################################
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## User options
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################################################################################
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## To check what fmmpeg supports:
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# ffmpeg -codecs
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# ffmpeg -formats
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## Useful guides
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## x264: http://ffmpeg.org/trac/ffmpeg/wiki/x264EncodingGuide
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## ID3 details: http://en.wikipedia.org/wiki/ID3
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TC_VIDEO_AUDIO_QUAL=192k
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## quality*size ~= 1/speed
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# ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow, placebo
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TC_VIDEO_PRESET=slow
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## Overall quality. Logarithmic scale.
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# 18 is near perfection.
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# 22 is really good compression, while a bit more blurry than the original.
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# 20 is a good compromise.
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TC_VIDEO_QUAL=20
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## x264 tuning (presets).
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## Possible values: film, animation, grain, ...
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## See x264 --fullhelp.
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## No tuning by default.
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# TC_VIDEO_TUNE="-tune film"
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TC_VIDEO_TUNE=""
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## x264 options.
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## Possible values: hex, umh...
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## me=umh is default.
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# TC_VIDEO_OPTS="-x264opts me=hex"
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TC_VIDEO_OPTS=""
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################################################################################
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## End of user options
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################################################################################
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## TODO: option to replace original file.
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## TODO: audio quality. Copy if AAC or OGG <320k.
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## TODO: crop options.
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## TODO: handle srt encoding.
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## TODO: separate functions:
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## tc_video_batch
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## tc_video_transcode
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if [ -z "$(command -v ffmpeg)" ]; then
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echo "ffmpeg required."
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@ -85,17 +41,23 @@ Examples:
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EOF
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}
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## What to do if file exists:
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# -y overwrite
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# -n do not overwrite.
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TC_OVERWRITE="-n"
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TC_SAMPLE=""
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TC_USER_OPT=""
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TC_REMOVE_TITLE=false
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TC_VIDEO_CODEC="libx264"
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TC_AUDIO_CODEC="libvorbis"
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TC_VIDEO_OPT="-c:v libx264 -preset $TC_VIDEO_PRESET -crf $TC_VIDEO_QUAL $TC_VIDEO_TUNE $TC_VIDEO_OPTS"
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TC_AUDIO_OPT="-c:a libvorbis -b:a $TC_VIDEO_AUDIO_QUAL -ac 2"
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TC_VIDEO_OPT="-preset slow -crf 20"
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## What to do if file exists:
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# -y overwrite
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# -n do not overwrite.
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TC_OVERWRITE="-n"
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## WARNING: we mix down audio to 2 channels with '-ac 2'. This greatly reduce
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## file size and avoid any confusion for playback, which is often the case when
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## converting DTS to any other format because DTS has embedded channel
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## description which is not available in other formats.
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TC_AUDIO_OPT="-b:a 192k -ac 2"
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while getopts ":cfho:sS:t" opt; do
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case $opt in
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@ -140,10 +102,6 @@ fi
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STATUS="$(set -o | grep 'shwordsplit' | awk '{print $2}')"
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[ "$STATUS" = "off" ] && set -o shwordsplit
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## WARNING: we mix down audio to 2 channels with '-ac 2'. This greatly reduce
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## file size and avoid any confusion for playback, which is often the case when
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## converting DTS to any other format because DTS has embedded channel
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## description which is not available in other formats.
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_tc_transcode()
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{
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cat<<EOF
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@ -54,6 +54,6 @@ fi
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cat "$1" | sed -e 's|/usr|/usr/local|g' >> "$UBUILD"
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cat "$(realpath "$0").in" >> "$UBUILD"
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cat "${0%/*}/.${0##*/}.in" >> "$UBUILD"
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chmod +x "$UBUILD"
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