80 lines
2.8 KiB
Bash
Executable File
80 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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txt_to_wav() {
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hash="$(md5sum "$1" | cut -d ' ' -f 1)"
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filename="out-$hash.sbc"
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xxd -r -p "$1" > "$filename"
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ffmpeg -y \
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-v quiet `# verbosity - other options are "quiet", "error", "panic"` \
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-f sbc `# accept SBC format` \
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-ac 1 `# audio channel: #1` \
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-i "$filename" `# input file: out-$hash.sbc` \
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"$2" `# output to $2`
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rm "$filename"
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}
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audio_to_txt() {
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hash="$(md5sum "$1" | cut -d ' ' -f 1)"
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filename="out-$hash.sbc"
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ffmpeg -y \
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-v quiet `# verbosity - other options are "quiet", "error", "panic"` \
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-i "$1" `# input file: $1` \
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-f sbc `# output format: SBC` \
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-ar 16000 `# audio rate: 16 kHz` \
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-ac 1 `# audio channel: #1` \
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-aq 16 `# audio quality: 16 (for SBC this means bitpool=16)` \
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-map_metadata -1 `# strip metadata` \
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"$filename" `# output to out-$hash.sbc`
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xxd -i "$filename" `# output in C include file style` \
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| head -n -2 `# skip last two xxd outline lines (skip C formatting)` \
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| tail -n +2 `# start output on line 2 of xxd output (skip C formatting)` \
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| sed 's/ //g' `# remove spaces` \
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| tr --delete '\n' `# remove newlines` \
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| sed 's/,/\,\n/16; P; D' `# collect into lines with the right length` \
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> "$2"
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rm "$filename"
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}
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audio_to_cpp() {
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varname="$(basename "$1" | rev | cut -f 2- -d '.' | rev | tr '[:lower:]/' '[:upper:]_')"
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ffmpeg -y \
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-v quiet `# verbosity - other options are "quiet", "error", "panic"` \
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-i "$1" `# input file: $1` \
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-f sbc `# output format: SBC` \
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-ar 16000 `# audio rate: 16 kHz` \
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-ac 1 `# audio channel: #1` \
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-aq 16 `# audio quality: 16 (for SBC this means bitpool=16)` \
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-map_metadata -1 `# strip metadata` \
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"$varname" `# output to something like EN_SOUND_POWER_ON`
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printf '#include <stdint.h>\n' > "$2"
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xxd -i "$varname" `# output in C include file style` \
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>> "$2"
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sed -i 's/unsigned char/uint8_t/g' "$2"
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rm "$varname"
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}
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[ "$1" = '-T' ] || [ "$1" = '--txt-to-wav' ] && shift 1 && txt_to_wav "$@" && exit
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[ "$1" = '-A' ] || [ "$1" = '--audio-to-txt' ] && shift 1 && audio_to_txt "$@" && exit
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[ "$1" = '-C' ] || [ "$1" = '--audio-to-cpp' ] && shift 1 && audio_to_cpp "$@" && exit
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echo "
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Sound format converter:
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Usage:
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$0 [option] [input-file] [output-file]
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Options:
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-T or --txt-to-wav Converts the text file to a wav audio file
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-A or --audio-to-txt Converts an audio file to a file readable by the old pinebuds firmware
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-C or --audio-to-cpp Converts an audio file to a file compilable into the pinebuds firmware
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"
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