mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2024-12-27 07:52:27 +00:00
110 lines
2.7 KiB
Bash
Executable File
110 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# Transcribe twitch.tv livestream by feeding audio input to whisper.cpp at regular intervals
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# Thanks to @keyehzy
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# ref: https://github.com/ggerganov/whisper.cpp/issues/209
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#
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# The script currently depends on the third-party tool "streamlink"
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# On Mac OS, you can install it via "brew install streamlink"
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#
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set -eo pipefail
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step=10
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model=base.en
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threads=4
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help()
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{
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echo "Example program for captioning a livestream from twitch.tv."
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echo
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echo "Usage: ./twitch.sh -s [step] -m [model] -t [threads] [url]"
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echo "options:"
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echo "-s Step in seconds (default is $step)."
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echo "-m Choose model, options are: 'tiny.en' 'tiny' 'base.en' 'base' 'small.en' 'small' 'medium.en' 'medium' 'large-v1' 'large' (default is '$model')."
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echo "-t Number of threads to use."
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echo "-h Print this help page."
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echo
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}
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check_requirements()
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{
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if ! command -v ./main &>/dev/null; then
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echo "whisper.cpp main executable is required (make)"
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exit 1
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fi
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if ! command -v streamlink &>/dev/null; then
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echo "streamlink is required (https://streamlink.github.io)"
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exit 1
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fi
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if ! command -v ffmpeg &>/dev/null; then
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echo "ffmpeg is required (https://ffmpeg.org)"
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exit 1
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fi
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}
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check_requirements
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while getopts ":s:m:t:h" option; do
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case $option in
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s)
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step=$OPTARG;;
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m)
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model=$OPTARG;;
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t)
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threads=$OPTARG;;
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h)
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help
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exit;;
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\?)
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help
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exit;;
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esac
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done
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url=${@:$OPTIND:1}
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if [ -z $url ]; then
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help
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exit
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fi
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echo "Piping from streamlink url=$url model=$model step=$step threads=$threads"
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streamlink $url best -O 2>/dev/null | ffmpeg -loglevel quiet -i - -y -probesize 32 -y -ar 16000 -ac 1 -acodec pcm_s16le /tmp/whisper-live0.wav &
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if [ $? -ne 0 ]; then
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printf "error: ffmpeg failed\n"
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exit 1
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fi
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echo "Buffering stream... (this should take $step seconds)"
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sleep $(($step))
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set +e
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echo "Starting..."
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i=0
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SECONDS=0
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while true
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do
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err=1
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while [ $err -ne 0 ]; do
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if [ $i -gt 0 ]; then
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ffmpeg -loglevel quiet -v error -noaccurate_seek -i /tmp/whisper-live0.wav -y -ss $(($i*$step-1)).5 -t $step -c copy /tmp/whisper-live.wav 2> /tmp/whisper-live.err
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else
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ffmpeg -loglevel quiet -v error -noaccurate_seek -i /tmp/whisper-live0.wav -y -ss $(($i*$step)) -t $step -c copy /tmp/whisper-live.wav 2> /tmp/whisper-live.err
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fi
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err=$(cat /tmp/whisper-live.err | wc -l)
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done
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./main -t $threads -m ./models/ggml-$model.bin -f /tmp/whisper-live.wav --no-timestamps -otxt 2> /tmp/whispererr | tail -n 1
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while [ $SECONDS -lt $((($i+1)*$step)) ]; do
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sleep 1
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done
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((i=i+1))
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done
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