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DRAFT: POC: Use audiobuffer without wavesurfer #1

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DRAFT: POC: Use audiobuffer without wavesurfer #1

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e2b5dfa
init
TimSusa Jan 4, 2021
2dfde45
Merge branch 'main' into separate_buffers
TimSusa Jan 8, 2021
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109 changes: 87 additions & 22 deletions src/clip/Clip.jsx
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Original file line number Diff line number Diff line change
Expand Up @@ -59,30 +59,52 @@ export function Clip({ url, tracksId, clipId }) {
} = tracks[tracksIdx].data[clipIdx]
const waveformRef = useRef(null)
const wavesurfer = useRef(null)
const startWasCalled = useRef(null)
const arrayBuffer = useRef(null)

const audioCtx = useRef(new AudioContext())
const source = useRef(audioCtx.current.createBufferSource())
// const startTime = useRef(window.performance.now())
const [playing, setPlay] = useState(isPlaying)

useEffect(() => {
const options = formWaveSurferOptions(waveformRef.current)
wavesurfer.current = WaveSurfer.create(options)
//setPlay(false)
//dispatch(toggleIsPlaying({ tracksId, clipId, isPlaying: false }))
//audioCtx.current = new AudioContext()
//Now that the request has been defined, actually make the request. (send it)
//const options = formWaveSurferOptions(waveformRef.current)
// wavesurfer.current = WaveSurfer.create(options)
//wavesurfer.current.cancelAjax()
//wavesurfer.current.load(url)

//wavesurfer.current.load(url)

// wavesurfer.current.on('ready', function () {
// // make sure object stillavailable when file loaded
// // if (wavesurfer.current) {
// //wavesurfer.current.setVolume(volume)
// // setIsLoading(false)
// // }
// })
// wavesurfer.current.on('finish', () => {
// if (isLooping) {
// // wavesurfer.current.playPause()
// //buffer.current.start()
// }
// })

cbd()

wavesurfer.current.load(url)
async function cbd() {
source.current = await getBufferByUrl(url)
//wavesurfer.current.loadDecodedBuffer(source.current.buffer)
console.log(source.current)
//source.current.start(0)
}

wavesurfer.current.on('ready', function () {
// make sure object stillavailable when file loaded
// if (wavesurfer.current) {
//wavesurfer.current.setVolume(volume)
// setIsLoading(false)
// }
})
wavesurfer.current.on('finish', () => {
if (isLooping) {
wavesurfer.current.playPause()
}
})
// Removes events, elements and disconnects Web Audio nodes.
// when component unmount
return () => wavesurfer.current.destroy()
// return () => wavesurfer.current.destroy()
}, [url])

useEffect(() => {
Expand All @@ -95,15 +117,32 @@ export function Clip({ url, tracksId, clipId }) {
}, [audioDriverOutName])

useEffect(() => {
if (isPlaying) {
console.log('play!!')
source.current.start(0)
startWasCalled.current = true
//dispatch(toggleIsPlaying({ tracksId, clipId, isPlaying: true }))
//wavesurfer.current.play(0.001)
//audioCtx.current && audioCtx.current.resume()
}
if (!isPlaying && startWasCalled.current) {
source.current.stop(0)
console.log('stop!!!')
//audioCtx.current && audioCtx.current.resume()
//dispatch(toggleIsPlaying({ tracksId, clipId, isPlaying: false }))
}
//wavesurfer.current.stop(0.001)
// source.current.stop(0)
//startWasCalled = false
// let playAlreadyStarted = false
// const ct = wavesurfer.current.backend.ac.currentTime
// const diff = (startTime.current - ct) / 1000 + 0.1

if (isPlaying) {
wavesurfer.current.play()
} else {
wavesurfer.current.stop()
}
// if (isPlaying) {
// wavesurfer.current.play()
// } else {
// wavesurfer.current.stop()
// }
}, [isPlaying])

return (
Expand Down Expand Up @@ -244,10 +283,32 @@ export function Clip({ url, tracksId, clipId }) {
)}
</div>
)
async function getBufferByUrl(url) {
//...and the source

//var source = audioCtx.current.createBufferSource()
//connect it to the destination so you can hear it.
source.current.connect(audioCtx.current.destination)
const resp = await fetch(url)
const arrayBuffer = await resp.arrayBuffer()
arrayBuffer.current = arrayBuffer
const audioBuffer = await audioCtx.current.decodeAudioData(arrayBuffer)
source.current.buffer = audioBuffer
source.current.loop = isLooping
var merger = audioCtx.current.createChannelMerger(32)

merger.connect(audioCtx.current.destination)
source.current.connect(merger, 0, 1)
source.current.connect(merger, 0, 0)
//source.current.start(0)
return source.current
//source.buffer
}
function handlePlayPause() {
setPlay(!playing)
//dispatch(toggleIsPlaying({ tracksId, clipId, isPlaying: !isPlaying }))
//wavesurfer.current.playPause()
//source.current.buffer.start()
if (isPlaying) {
dispatch(registerClip({ clip: { tracksId, clipId, isPlaying: false } }))
} else {
Expand All @@ -262,7 +323,7 @@ export function Clip({ url, tracksId, clipId }) {
if (newVolume) {
dispatch(changeClipVolume({ clipId, tracksId, volume: newVolume }))
//setVolume(newVolume)
wavesurfer.current.setVolume(newVolume || 1)
//wavesurfer.current.setVolume(newVolume || 1)
}
}
}
Expand All @@ -275,6 +336,10 @@ Clip.propTypes = {
}

function formWaveSurferOptions(ref) {
// const processor = audioaudioCtx.current.createScriptProcessor(1024, 1, 1)

// audioaudioCtx.current,
// audioScriptProcessor: processor,
return {
container: ref,
closeAudioContext: false,
Expand Down