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Fix AudioData to AudioBuffer conversion

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This commit is contained in:
David Payr
2024-12-22 23:31:16 +01:00
parent 73373b89bf
commit d597f215d4
6 changed files with 17 additions and 27 deletions
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src/media-drain.ts
+6 -8
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@@ -305,9 +305,7 @@ export class VideoFrameDrain extends BaseMediaFrameDrain<EncodedVideoChunk, Vide
}
async createDecoder(onFrame: (frame: VideoFrame) => unknown) {
if (!this.decoderConfig) {
this.decoderConfig = await this.videoTrack.getDecoderConfig();
}
this.decoderConfig ??= await this.videoTrack.getDecoderConfig();
const decoder = new VideoDecoder({
output: onFrame,
@@ -369,9 +367,7 @@ export class AudioDataDrain extends BaseMediaFrameDrain<EncodedAudioChunk, Audio
}
async createDecoder(onData: (data: AudioData) => unknown) {
if (!this.decoderConfig) {
this.decoderConfig = await this.audioTrack.getDecoderConfig();
}
this.decoderConfig ??= await this.audioTrack.getDecoderConfig();
const decoder = new AudioDecoder({
output: onData,
@@ -422,9 +418,11 @@ export class AudioBufferDrain {
sampleRate: data.sampleRate,
});
// All user agents are required to support conversion to f32-planar
const dataBytes = new Float32Array(data.allocationSize({ planeIndex: 0, format: 'f32-planar' }) / 4);
for (let i = 0; i < data.numberOfChannels; i++) {
const dataBytes = new Float32Array(data.allocationSize({ planeIndex: i }));
data.copyTo(dataBytes, { planeIndex: i });
data.copyTo(dataBytes, { planeIndex: i, format: 'f32-planar' });
audioBuffer.copyToChannel(dataBytes, i);
}