added surround sound mixdown default.
This commit is contained in:
Luke Renaud
parent
fa6b057fa4
commit
35c956daba
1 changed files with 51 additions and 17 deletions
68
burnSubs
68
burnSubs
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@ -5,7 +5,7 @@ set -o errexit
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################################################################################
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# burnSubs
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# version 0.12.0
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# version 0.13.0
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#################
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# Wishlist:
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# queue encodes
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@ -66,20 +66,6 @@ function machineSetup() {
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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="${FILT_AUDIO} -strict -2"
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fi
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else
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FILT_AUDIO="-c:a copy"
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fi
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# Configure the encoder based upon the specific encoder chain required
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## NVIDIA GPU Encode/Decode
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@ -296,10 +282,45 @@ function parseStreams() {
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"$JQ" 'reduce .streams[] as $item ([]; if ($item.codec_name == "ass" or $item.codec_name == "dvd_subtitle") then [.[],$item] else . end) | reduce .[] as $item ([]; [.[],{t:($item.tags.title),i:($item.index),lang:$item.tags.language, disposition:$item.disposition, codec:($item.codec_name)}]) | reduce .[] as $item ([]; [.[],{t:($item.t // ($item.lang + "-" + ($item.i | tostring))),i:$item.i,lang:$item.lang,disposition:$item.disposition,codec:$item.codec}])' "${STREAMS_ALL}" > "${STREAMS_SUB}"
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export SUB_COUNT=$("$JQ" 'length' "${STREAMS_SUB}")
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# shellcheck disable=SC2016
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"$JQ" 'reduce .streams[] as $item ([]; if ($item.codec_type == "audio") 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}" > "${STREAMS_AUDIO}"
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"$JQ" 'reduce .streams[] as $item ([]; if ($item.codec_type == "audio") then [.[],$item] else . end) | reduce .[] as $item ([]; [.[],{t:($item.tags.title),i:($item.index),lang:$item.tags.language, disposition:$item.disposition, chan:{channels:$item.channels, channel_layout:$item.channel_layout}}]) | reduce .[] as $item ([]; [.[],{t:($item.t // ($item.lang + "-" + ($item.i | tostring))),i:$item.i,lang:$item.lang,disposition:$item.disposition, chan:$item.chan}])' "${STREAMS_ALL}" > "${STREAMS_AUDIO}"
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export AUDIO_COUNT=$("$JQ" 'length' "${STREAMS_AUDIO}")
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}
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function setupAudioTranscode() {
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if [[ $AUDIO_COUNT -ne 1 ]]; then
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CHANNEL_COUNT=$($JQ '.[] | select(.i == '$AUDIO_INDEX') | .chan.channels' "$STREAMS_AUDIO")
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CHANNEL_LAYOUT=$($JQ '.[] | select(.i == '$AUDIO_INDEX') | .chan.channel_layout' "$STREAMS_AUDIO")
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else
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CHANNEL_COUNT=$($JQ '.[] | .chan.channels' "$STREAMS_AUDIO")
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CHANNEL_LAYOUT=$($JQ '.[] | .chan.channel_layout' "$STREAMS_AUDIO")
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fi
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if [[ "${CHANNEL_COUNT}" == "6" && "${CHANNEL_LAYOUT}" == '"5.1"' ]]; then
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# check if we're 5.1 and if so flag transcode.
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export OPTS_TRANS_AUDIO=true
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elif [[ "${CHANNEL_COUNT}" != "2" && "${CHANNEL_LAYOUT}" != '"5.1"' ]]; then
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echo "ERROR: Trying to enocde non 5.1 and non-stereo audio stream."
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exit 1
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fi
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# Configure audio filtergraph if needed.
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if [[ "${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 ${FILT_AUDIO}"
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fi
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if [[ "${OPTS_SURROUND_PRESERVE}" == false ]]; then
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# From https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg
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# Nightmode Formula
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FILT_AUDIO="-filter:a pan=stereo|FL<FC+0.30*FL+0.30*BL|FR<FC+0.30*FR+0.30*BR ${FILT_AUDIO}"
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fi
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else
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FILT_AUDIO="-c:a copy"
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fi
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}
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function listSubtitles() {
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@ -501,6 +522,7 @@ OPTS_LPF_AUDIO=false
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OPTS_TRANS_AUDIO=false
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OPTS_derived_NO_OUTPUT=false
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OPTS_VERBOSITY=1
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OPTS_SURROUND_PRESERVE=false
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unset OPT_CRF
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# this is the --icon flag passed to notify-send at the end of the transcode
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NOTIFY_ICON="face-tired"
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@ -521,7 +543,7 @@ FINAL_STATUS=1
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######
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# Reformat and organize the input strings
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OPT_STRING=$(getopt -o 'hkls:a:dt:vq' \
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--long 'help,psoft,soft,dry,crf:,audio,audiofix,alocale:,slocale:,verbose,quiet' -- "$@")
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--long 'help,psoft,soft,dry,crf:,audio,audiofix,alocale:,slocale:,verbose,quiet,keep-surround' -- "$@")
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# reassign them as positional arguments
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eval set -- "$OPT_STRING"
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@ -597,6 +619,13 @@ while true; do
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shift
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continue
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;;
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"--keep-surround")
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OPTS_SURROUND_PRESERVE=true
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OPTS_TRANS_AUDIO=true
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echo ">> !! preserving 5.1/7.1 surround sound if available."
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shift
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continue
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;;
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"--soft")
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OPTS_FORCESOFT=true
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echo ">> !! forcing software decoding/encoding."
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@ -657,6 +686,7 @@ while true; do
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--soft force software decode and encode
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--psoft use software encoding (allow hardware decode when available)
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--audiofix transcode audio
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--keep-surround try to preserve surround sound rather than downmixing to stereo.
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--lpf transcode audio, and low-pass filter as well
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-l list subtitles and audio tracks (no encoding)
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@ -734,6 +764,10 @@ fi
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selectSubs
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# extract the selected subtitle file
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extractSubs $SUBTITLE_INDEX
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# Configure the audio straem
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setupAudioTranscode
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# Set the bitrate if that function wasn't disabled
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runExtraProc "h264_vaapi"
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