v0.9
This commit is contained in:
Luke Renaud
commit
bd87bacacb
1 changed files with 553 additions and 0 deletions
553
burnSubs
Executable file
553
burnSubs
Executable file
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@ -0,0 +1,553 @@
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#!/bin/bash
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set -e
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set -o nounset
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set -o errexit
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################################################################################
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# burnSubs
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# version 0.9.1
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#################3
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# Wishlist:
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# queue encodes
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# finish TODOs
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# list subtitles flag
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# finish help flag
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# audio recode flag
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################################################################################
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function machineSetup() {
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# Default setup
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export FF_ENC="libx264"
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export FF_HW=""
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export FILT_PFX=""
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export FILT_SFX=""
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CRF=${OPTS_CRF:-23}
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export FF_STD="-preset myTranscoderPreset -crf $CRF -tune animation \
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-preset medium -movflags +faststart"
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export FF_EXT="-profile:v high -level 4.0"
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# Handle the time limit argument used for testing if it was passed
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if [[ "${OPTS_TIMELIMIT}" != "null" ]]; then
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export LIM_TIME="-t ${OPTS_TIMELIMIT}"
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else
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export LIM_TIME=""
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fi
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# The default extraProc function. This should be overridden by each encoder
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# as required. For example, to set bitrate after a video has been parsed.
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function extraProc() {
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return
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}
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# Use the machine hostname to set the default encoding options based upon
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# my preferences.
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echo "Machine identification:"
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if [[ "${OPTS_FORCESOFT}" == "true" ]]; then
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echo " > Hostname: $(hostname)"
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export OPTS_ENC="allsoft"
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else
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if [[ "$(hostname)" == "Kusanagi" ]]; then
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echo " > Hostname: 草薙素子"
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export OPTS_ENC="nvidia"
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echo "FIX FFMPEG!"
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#export FFMPEG="/opt/ffmpeg-nvenc/bin/ffmpeg"
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export LD_LIBRARY_PATH="/opt/ffmpeg-nvenc/lib"
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export FF_EXT="${FF_EXT} -pix_fmt yuv420p"
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elif [[ "$(hostname)" == "grad-heo-lappy" ]]; then
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echo " > Hostname: $(hostname)"
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export OPTS_ENC="vaapi"
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else
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echo " > Hostname: $(hostname)"
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export OPTS_ENC="allsoft"
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export FF_EXT="${FF_EXT} -pix_fmt yuv420p"
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fi
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fi
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# Configure audio filtergraph if needed.
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if [[ "${OPTS_TRANS_AUDIO}" == true ]]; then
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FILT_AUDIO="-c:a aac"
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if [[ "${OPTS_LPF_AUDIO}" == true ]]; then
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FILT_AUDIO="-filter:a highpass=f=7 ${FILT_AUDIO}"
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fi
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if [[ "$(hostname)" == "Ram-the-Red" ]]; then
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FILT_AUDIO="${FILT_AUDIO} -strict -2"
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fi
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else
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FILT_AUDIO="-c:a copy"
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fi
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# Configure the encoder based upon the specific encoder chain required
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## NVIDIA GPU Encode/Decode
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if [[ "$OPTS_ENC" == "nvidia" ]]; then
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echo " > Using nVidia Encoder"
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echo " >>> full hardware"
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# NVIDIA GPU encoding options
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export FF_ENC="h264_nvenc"
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# Assuming h264 input video
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# TODO: Handle non h264 input streams
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#export FF_HW="-hwaccel cuvid -c:v h264_cuvid"
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#export FF_HW="-hwaccel cuvid"
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# Frame count lookahead
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export FF_EXT="${FF_EXT} -rc-lookahead 30"
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## Intel CPU Encode/Decode
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elif [[ "$OPTS_ENC" == "vaapi" ]]; then
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echo " > Using VAAPI."
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# apt install libvdpau-va-gl1
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#export FF_BIN="/opt/ffmpeg/bin/ffmpeg"
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# Full hardware
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if [[ "${OPTS_FORCEPARTSOFT}" == "false" ]]; then
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echo " >>> full hardware"
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# Full hardware decode/encode
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export FF_HW="-hwaccel vaapi -hwaccel_device \
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/dev/dri/renderD128 -hwaccel_output_format vaapi"
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export FF_ENC="h264_vaapi"
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export FILT_PFX="scale_vaapi,hwmap=mode=read+write+direct,format=nv12,"
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export FILT_SFX=",hwmap"
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# Override the extra options used for this encoder
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export FF_EXT="-profile:v 100 -level 40"
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# Mixed software hardware
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else
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echo " >>> hardware decode"
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echo " > software encode"
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# software encode, hardware decode only
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export FF_HW="-hwaccel vaapi -hwaccel_device /dev/dri/renderD128"
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fi
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# Disable this shit
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# set the bitrate based upon the old video size.
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if [[ $(false) ]]; then
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function extraProc() {
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echo -n " > determine video size: "
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LEN_COMPLEX=$("$JQ" '.streams[0].tags.DURATION' \
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"${STREAMS_ALL}" | tr -d '"')
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LEN_SECONDS=$("$DATE" -u +'%s' -d "1970-01-01 $LEN_COMPLEX")
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# shellcheck disable=SC2016
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VIDEO_SIZE_KBYTES=$("$FFPROBE" -select_streams v -show_entries \
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packet=size -of default=nokey=1:noprint_wrappers=1 \
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-i "${INPUT_VIDEO}" | "$AWK" '{s+=$1} END {print s/1024.0}')
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KBITRATE=$("$PYTHON3" -c \
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"print('%.0f' % (1.0*8.0*$VIDEO_SIZE_KBYTES/$LEN_SECONDS))")
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export FF_EXT="-b:v ${KBITRATE}K "
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}
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fi
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# Full Software encoding/decoding. No hardware assistance.
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else
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echo " > Using default full software chain."
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fi
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sleep 1
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echo "====> Starting <===="
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}
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function setupBins() {
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# The first argument is the "default" binary name, and the second
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# is the variable where that binary's path is stored. Using *export* to
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# override the variable before "setupBins" is called will let you specify
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# a specific instance of the binary to use instead.
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setAndValidateBin "ffmpeg" "FFMPEG"
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setAndValidateBin "ffprobe" "FFPROBE"
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setAndValidateBin "jq" "JQ"
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setAndValidateBin "python3" "PYTHON3"
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setAndValidateBin "awk" "AWK"
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setAndValidateBin "date" "DATE"
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}
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# Used by the above function to evaluate overrides if they are set, and
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# otherwise to simply return the existing binary as an absolute path.
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function setAndValidateBin() {
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binaryVariable="$2"
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# shellcheck disable=SC2086
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eval binaryCurrentValue="\${$binaryVariable:-}"
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if [[ "" == "$binaryCurrentValue" ]]; then
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binaryCurrentValue="$1"
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fi
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# Try to extract the results of the current binary as an absolute path
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binaryCurrentValue=$(readlink -f "$(which "$binaryCurrentValue")") || /bin/true
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# And fail if we don't have it
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if [[ ! -x "$binaryCurrentValue" ]]; then
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echo "ERROR: Required binary '$1' not found."
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exit
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fi
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# shellcheck disable=SC2086
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eval export $binaryVariable="$binaryCurrentValue"
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}
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# The fall back cleanup function to remove the shit in temp. Set to trap in
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# the setup temp function further on.
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function doCleanup() {
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# On eject return to where we started, and frag the cleanup directory
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cd "$WD"
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if [[ "$OPTS_DEBUG" == "false" ]]; then
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echo "=> Cleaning up."
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rm -r "$TMP"
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else
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echo "tmp dir: $TMP"
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fi
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alertUser
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}
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# All we do is note that we'll have to move around, and this helps us keep our
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# bearings and avoid polluting the working directory.
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function setupTemp() {
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echo "=> Performing Setup:"
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# The FFMPEG calls require all of the files to actually exist on disk. To
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# accommodate this, we setup a temporary working directory to dump the files
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# and we will remove it's contents when things are done. This provides a
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# location for the font files to be placed, as well as a location for the
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# raw subtitles files.
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trap doCleanup EXIT
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export WD="$PWD"
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export TMP=$(mktemp -d /tmp/transFont.XXXX)
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}
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function dumpFonts() {
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# Dumb font dump
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cd "$FONTDIR"
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"$FFMPEG" -dump_attachment:t "" -i "${INPUT_VIDEO}" -vn -an \
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-f null /dev/null 2>/dev/null || /bin/true
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cd "$WD"
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}
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function setupFonts() {
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echo " > setting up fonts..."
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# Simply setup an encode specific font configuration setup. This will direct
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# the system to use any font files that we have provided in $TMP/font_files
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# then fall back to the system configuration afterwards.
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export FONTDIR="${TMP}/font_files"
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FC_DIR="${TMP}/fontconfig"
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FC_FILE="${FC_DIR}/fonts.conf"
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mkdir "${FONTDIR}"
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mkdir "${FC_DIR}"
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{
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echo '<?xml version="1.0"?>';
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echo '<!DOCTYPE fontconfig SYSTEM "fonts.dtd">';
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echo '<fontconfig>';
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echo ' <dir>'"${FONTDIR}"'</dir>';
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echo ' <include>/etc/fonts/fonts.conf</include>';
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echo '</fontconfig>'
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} > "${FC_FILE}"
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# This export line presents the configuration override to FFMPEG later on.
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export FONTCONFIG_FILE="${FC_FILE}"
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dumpFonts
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}
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function setupPreset() {
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echo " > setting up preset..."
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# The preset system provides a way to specify specific encoding options.
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# This can easily be removed as desired.
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presetName="$1"
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# And include the ffmpeg preset
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export FFMPEG_DATADIR="${TMP}/ffmpeg"
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FFMPEG_PRESET_FILE="${FFMPEG_DATADIR}/${FF_ENC}-${presetName}.preset"
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mkdir "${FFMPEG_DATADIR}"
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{
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# This preset is for the roku
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echo 'coder=1'
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echo 'flags=+loop'
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echo 'cmp=+chroma'
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echo 'partitions=+parti8x8+parti4x4+partp8x8+partb8x8'
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echo 'me_method=umh'
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echo 'subq=8'
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echo 'me_range=16'
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echo 'g=250'
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echo 'keyint_min=25'
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echo 'sc_threshold=40'
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echo 'i_qfactor=0.71'
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echo 'b_strategy=2'
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echo 'qcomp=0.6'
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echo 'qmin=10'
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echo 'qmax=51'
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echo 'qdiff=4'
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echo 'bf=4'
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echo 'refs=4'
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echo 'directpred=3'
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echo 'trellis=1'
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echo 'flags2=+wpred+mixed_refs+dct8x8+fastpskip'
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} > "${FFMPEG_PRESET_FILE}"
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}
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function parseStreams() {
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# Most MKV files will only have a single subtitle file. In the case we have
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# multiple subtitles we wish to handle conversion gracefully. To do so, we
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# extract all of the track information (the first ffprobe call), then use
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# the json parsing tool jq to extract subtitle data for styled subtitles.
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#
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#
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STREAMS_ALL="${TMP}/streams.json"
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export STREAMS_SUB="${TMP}/subs.json"
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"$FFPROBE" -v error -of json -show_streams "${INPUT_VIDEO}" 2>/dev/null > "${STREAMS_ALL}"
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# Extract subtitles
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#$item.codec_type == "subtitle" \&\&
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# shellcheck disable=SC2016
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"$JQ" 'reduce .streams[] as $item ([]; if ($item.codec_name == "ass") then [.[],$item] else . end) | reduce .[] as $item ([]; [.[],{t:($item.tags.title),i:($item.index),lang:$item.tags.language, disposition:$item.disposition}]) | reduce .[] as $item ([]; [.[],{t:($item.t // ($item.lang + "-" + ($item.i | tostring))),i:$item.i,lang:$item.lang,disposition:$item.disposition}])' "${STREAMS_ALL}" > "${STREAMS_SUB}"
|
||||||
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export SUB_COUNT=$("$JQ" 'length' "${STREAMS_SUB}")
|
||||||
|
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||||||
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}
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||||||
|
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||||||
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function listSubtitles() {
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||||||
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# TODO:
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||||||
|
return
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||||||
|
}
|
||||||
|
|
||||||
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function selectSubs() {
|
||||||
|
# TODO: handle multiple subtitle files
|
||||||
|
# TODO: verify the the subtitle index is legal
|
||||||
|
if [[ $SUB_COUNT -eq 0 ]]; then
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||||||
|
echo " > ERROR: No subtitles! Todo!"
|
||||||
|
export SUBTITLE_INDEX=-1
|
||||||
|
elif [[ $SUB_COUNT -eq 1 ]]; then
|
||||||
|
export SUBTITLE_INDEX=$($JQ '.[].i' "$STREAMS_SUB")
|
||||||
|
SUBTITLE_NAME=$($JQ '.[].t' "$STREAMS_SUB")
|
||||||
|
echo " > subtitles: [${SUBTITLE_INDEX}] ${SUBTITLE_NAME}"
|
||||||
|
else
|
||||||
|
echo " > ERROR: Multiple subtitles! Todo!"
|
||||||
|
export SUBTITLE_INDEX=-1
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
function extractSubs() {
|
||||||
|
echo " > extracting subtitles"
|
||||||
|
export SUBTITLE_FILE="${TMP}/ripped.ass"
|
||||||
|
extractIndex="$1"
|
||||||
|
"$FFMPEG" -i "${INPUT_VIDEO}" -map 0:"${extractIndex}" -vn -an -c:s copy -c:a copy \
|
||||||
|
"$SUBTITLE_FILE" 2>/dev/null
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
function doTranscode() {
|
||||||
|
echo "=> Starting transcode:"
|
||||||
|
# shellcheck disable=SC2086
|
||||||
|
echo "$FFMPEG" ${FF_HW} -i "${INPUT_VIDEO}" -sn ${LIM_TIME} \
|
||||||
|
-filter:v "${FILT_PFX}ass=${SUBTITLE_FILE}${FILT_SFX}" \
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||||||
|
${FILT_AUDIO} -c:v "${FF_ENC}" ${FF_STD} ${FF_EXT} \
|
||||||
|
"${OUTPUT_VIDEO}"
|
||||||
|
if [[ "$OPTS_DRYRUN" == true ]]; then
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
# shellcheck disable=SC2086
|
||||||
|
"$FFMPEG" ${FF_HW} -i "${INPUT_VIDEO}" -sn ${LIM_TIME} \
|
||||||
|
-filter:v "${FILT_PFX}ass=${SUBTITLE_FILE}${FILT_SFX}" \
|
||||||
|
${FILT_AUDIO} -c:v "${FF_ENC}" ${FF_STD} ${FF_EXT} \
|
||||||
|
"${OUTPUT_VIDEO}"
|
||||||
|
export FINAL_STATUS=$?
|
||||||
|
}
|
||||||
|
|
||||||
|
function runExtraProc() {
|
||||||
|
if [[ "$FF_ENC" == "$1" ]]; then
|
||||||
|
extraProc
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
function klobberCheck() {
|
||||||
|
if [[ -e "${OUTPUT_VIDEO}" ]]; then
|
||||||
|
if [[ "$OPTS_KLOBBER" == "true" ]]; then
|
||||||
|
echo " > klobbering old file '${OUTPUT_VIDEO}'"
|
||||||
|
rm -v "${OUTPUT_VIDEO}"
|
||||||
|
else
|
||||||
|
echo " > refusing to klobber old file '${OUTPUT_VIDEO}'"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
function alertUser() {
|
||||||
|
# if the function isn't available, then define an empty function to
|
||||||
|
# reject the message into the void
|
||||||
|
if ! which notify-send >/dev/null; then
|
||||||
|
function notify-send() { return; }
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ $FINAL_STATUS -ne 0 ]]; then
|
||||||
|
notify-send -u normal --icon error "🗙 Transcode failed!" \
|
||||||
|
"$(basename "${INPUT_VIDEO}")\n🞩🞩🞩🞩🞩\n$(basename "${OUTPUT_VIDEO}")"
|
||||||
|
else
|
||||||
|
notify-send -u normal --icon ${NOTIFY_ICON} "✔ Transcode finished" \
|
||||||
|
"$(basename "${INPUT_VIDEO}")\n↓↓↓↓↓\n$(basename "${OUTPUT_VIDEO}")"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# And verify arguments
|
||||||
|
######
|
||||||
|
# Defaults
|
||||||
|
OPTS_KLOBBER=false
|
||||||
|
OPTS_LISTSUBS=false
|
||||||
|
OPTS_SELSUB=-1
|
||||||
|
OPTS_LISTSUBS=false
|
||||||
|
OPTS_FORCESOFT=false
|
||||||
|
OPTS_FORCEPARTSOFT=false
|
||||||
|
OPTS_ENC="allsoft"
|
||||||
|
OPTS_TIMELIMIT=null
|
||||||
|
OPTS_DRYRUN=false
|
||||||
|
OPTS_DEBUG=false
|
||||||
|
OPTS_LPF_AUDIO=false
|
||||||
|
OPTS_TRANS_AUDIO=false
|
||||||
|
unset OPT_CRF
|
||||||
|
# this is the --icon flag passed to notify-send at the end of the transcode
|
||||||
|
NOTIFY_ICON="face-tired"
|
||||||
|
# preinitalized final ffmpeg status to assumed error
|
||||||
|
FINAL_STATUS=1
|
||||||
|
|
||||||
|
### Argument Parsing
|
||||||
|
# Input/Output videos (non-flagged arguments)
|
||||||
|
# optional:
|
||||||
|
# -k do clobber output
|
||||||
|
# -s # subtitle track
|
||||||
|
# -l list subtitle tracks of input files
|
||||||
|
# --soft force software encoder
|
||||||
|
# -d debug, don't cleanup
|
||||||
|
###
|
||||||
|
|
||||||
|
|
||||||
|
######
|
||||||
|
# Reformat and organize the input strings
|
||||||
|
OPT_STRING=$(getopt -o 'hkls:dt:' --long 'help,psoft,soft,dry,crf:,audio,audiofix' -- "$@")
|
||||||
|
# reassign them as positional arguments
|
||||||
|
eval set -- "$OPT_STRING"
|
||||||
|
|
||||||
|
while true; do
|
||||||
|
case "$1" in
|
||||||
|
"-t")
|
||||||
|
OPTS_TIMELIMIT="$2"
|
||||||
|
echo ">> !! limiting encode to time '$OPTS_TIMELIMIT'"
|
||||||
|
shift 2
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"-k")
|
||||||
|
OPTS_KLOBBER=true
|
||||||
|
echo ">> !! klobber when encoding time comes."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"-l")
|
||||||
|
OPTS_LISTSUBS=true
|
||||||
|
echo ">> !! list subtitles and exit"
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"-s")
|
||||||
|
OPTS_SELSUB="$2"
|
||||||
|
#TODO: verify legal subtitle track number convention"
|
||||||
|
echo "TODO: verify legal subtitle track number convention"
|
||||||
|
echo ">> !! Selecting subtitle track #${OPTS_SELSUB}"
|
||||||
|
shift 2
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--psoft")
|
||||||
|
OPTS_FORCEPARTSOFT=true
|
||||||
|
echo ">> !! forcing software encoding."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--audio")
|
||||||
|
OPTS_LPF_AUDIO=true
|
||||||
|
OPTS_TRANS_AUDIO=true
|
||||||
|
echo ">> !! low pass filter audio to AAC."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--audiofix")
|
||||||
|
OPTS_TRANS_AUDIO=true
|
||||||
|
echo ">> !! no filter audio to AAC."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--soft")
|
||||||
|
OPTS_FORCESOFT=true
|
||||||
|
echo ">> !! forcing software decoding/encoding."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--crf")
|
||||||
|
OPTS_CRF="$2"
|
||||||
|
echo ">> !! CRF Override CRF='$OPTS_CRF'"
|
||||||
|
shift 2
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"-d")
|
||||||
|
OPTS_DEBUG=true
|
||||||
|
echo ">> !! debug enabled."
|
||||||
|
echo ">> temp files will not be cleaned up."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--dry")
|
||||||
|
OPTS_DRYRUN=true
|
||||||
|
echo ">> !! dry run. No encode."
|
||||||
|
shift
|
||||||
|
continue
|
||||||
|
;;
|
||||||
|
"--")
|
||||||
|
shift # all arguments parsed
|
||||||
|
break
|
||||||
|
;;
|
||||||
|
"-h" | "--help")
|
||||||
|
# TODO: Display help
|
||||||
|
shift # all arguments parsed
|
||||||
|
echo "TODO: HELP!" # Display HELP
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
echo "Arg: $1"
|
||||||
|
echo "Internal Error!" >&2
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
|
||||||
|
# Now parse POSITIONAL ARGUMENTS
|
||||||
|
if [[ $# -ne 2 ]]; then
|
||||||
|
echo "ERROR: Incorrect number of positional arguments. Expected 2, got $#"
|
||||||
|
echo " $0 [args] <input> <output>"
|
||||||
|
exit
|
||||||
|
else
|
||||||
|
INPUT_VIDEO="$(readlink -f "$1")"
|
||||||
|
OUTPUT_VIDEO="$2"
|
||||||
|
fi
|
||||||
|
|
||||||
|
###############
|
||||||
|
# Configure the encoder based upon the hostname
|
||||||
|
machineSetup
|
||||||
|
|
||||||
|
###############
|
||||||
|
# Check and validate the binaries we use to parse and setup the encoding chain
|
||||||
|
setupBins
|
||||||
|
# Setup the temp space for working files
|
||||||
|
setupTemp
|
||||||
|
# Extract embedded fonts and configure fontconfig
|
||||||
|
setupFonts
|
||||||
|
# Export the preset file used for the Roku
|
||||||
|
setupPreset myTranscoderPreset
|
||||||
|
|
||||||
|
###############
|
||||||
|
# Parse stream data to identify subtitles
|
||||||
|
parseStreams
|
||||||
|
# Now! If OPTS_LISTSUBS is defined, then we branch to list subs and exit.
|
||||||
|
if [[ "$OPTS_LISTSUBS" == "true" ]]; then
|
||||||
|
listSubtitles
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
# ask the user for the subtitle file if more than one is available
|
||||||
|
selectSubs
|
||||||
|
# extract the selected subtitle file
|
||||||
|
extractSubs $SUBTITLE_INDEX
|
||||||
|
# Set the bitrate if that function wasn't disabled
|
||||||
|
runExtraProc "h264_vaapi"
|
||||||
|
|
||||||
|
# If we're clobbering, now is the time to do the clobbering
|
||||||
|
klobberCheck
|
||||||
|
# Kickoff the transcode
|
||||||
|
doTranscode
|
||||||
|
|
||||||
|
# cleanup automatically executes after the done message is cleared
|
||||||
|
echo "done."
|
||||||
Loading…
Add table
Add a link
Reference in a new issue