118 lines
3.4 KiB
Bash
118 lines
3.4 KiB
Bash
# Mux audio into containers. File names in sound and current dirrectories must match.
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# Usage: ffmpeg_mux_audio <SOUND> <OUTPUT DIR>
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function ffmpeg_mux_audio() {
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if [[ ${1} == "" ]]; then
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help ffmpeg_mux_audio
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return 2
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fi
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for file in *; do ffmpeg -i "$file" -i "$1"/"$file" -c copy -map 0:v:0 -map 1:a:0 -shortest "$2"/"$file"; done
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}
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# Mux cover into music file.
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# Usage: ffmpeg_mux_cover <FORMAT> <COVER>
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function ffmpeg_mux_cover() {
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if [[ ${1} == "" ]]; then
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help ffmpeg_mux_cover
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return 2
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fi
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local format="${1}"
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local cover="${2}"
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mkdir out
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case "${format}" in
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# "mka"|"mkv")
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# for file in *.${format}; do
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# ffmpeg -i "${file}" -attach "${cover}" -map 0 -c copy -metadata:s:t mimetype="image/${cover##*.}" -metadata:s:t:0 filename="cover.${cover##*.}" "./out/${file}" || return 1
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# done
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# ;;
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*)
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for file in *.${format}; do
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# ffmpeg -i "${file}" -i "${cover}" -map 0 -map 0:-v? -map 1 -codec copy -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" -disposition:v attached_pic ./out/"${file}" || return 1
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ffmpeg -i "${file}" -i "${cover}" -map 0 -map 1 -codec copy -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" -disposition:v attached_pic ./out/"${file}" || return 1
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done
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;;
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esac
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mv out/* .
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rm -d out/ && rm "${2}"
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}
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# Generate music metadata from directory structure.
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# Top dir is the Artist name like this: `The_Beatles`.
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# Next are albums like this: `2010_My_love`.
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# Inside are songs like this: `01_sample.flac`.
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# Usage: ffmpeg_music_meta <FORMAT>
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function ffmpeg_music_meta() {
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if [[ ${1} == "" ]]; then
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help ffmpeg_music_meta
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return 2
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fi
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local format="${1}"
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ls *.${format} &>/dev/null || return 1
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local artist="${PWD%/*}"
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artist="${artist##*/}"
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artist="${artist//_/ }"
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local album="${PWD##*/}"
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album="${album#*_}"
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album="${album//_/ }"
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local year="${PWD##*/}"
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year="${year%%_*}"
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# local total=$(ls *.${format} | wc -l)
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mkdir out
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for file in *.${format}; do
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local track="${file%%_*}"
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track=$((10#${track}))
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[[ ${track} == "" ]] && track=0
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local title="${file#*_}"
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title="${title%.*}"
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title="${title//_/ }"
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# echo "${artist}; ${album}; ${year}; ${track}; ${title}"
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# TODO: make it format-specific.
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ffmpeg -i "${file}" -map 0 -c copy -metadata "artists=" -metadata "artist=${artist}" -metadata "album_artist=${artist}" -metadata "album=${album}" -metadata "date=${year}" -metadata "year=${year}" -metadata "date_released=${year}" -metadata "track=${track}" -metadata "part_number=${track}" -metadata "title=${title}" ./out/"${file}" || return 1
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done
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mv out/* .
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rm -d out/
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}
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# Rotate the video clock-wise.
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# Usage: ffmpeg_rotate <ANGLE> <TARGET>
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function ffmpeg_rotate() {
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if [[ ${2} == "" ]]; then
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help ffmpeg_rotate
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fi
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local angle="${1}"
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local target="${2}"
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ffmpeg -display_rotation ${angle} -i ${target} -c copy _${target} && mv _${target} ${target} || rm _${target}
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}
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# Get video FPS.
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function _ffprobe_fps() {
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local fps=$(ffprobe -v 0 -of csv=p=0 -select_streams v:0 -show_entries stream=r_frame_rate "${1}")
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[[ ${fps} == "" ]] && fps=30 || fps=$((fps))
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echo "${fps}"
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}
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# Get recommended keyframe interval for a file.
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function _ffprobe_keyint() {
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local fps=$(_ffprobe_fps "${1}")
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echo $((fps * 5))
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}
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# Get audio bitrage. 128 by default.
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function _ffprobe_ba() {
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local ba=$(ffprobe -v error -select_streams a:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 "${1}")
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[[ ${ba} != "N/A" ]] && echo $((ba / 1024)) || echo 128
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}
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