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fix(codec-selection): Select VP8 as default codec. #2394

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Nov 15, 2023
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fix(codec-selection): Select VP8 as default codec. #2394

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8 changes: 7 additions & 1 deletion modules/RTC/CodecSelection.js
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Original file line number Diff line number Diff line change
Expand Up @@ -112,9 +112,15 @@ export class CodecSelection {
? MOBILE_P2P_VIDEO_CODEC_ORDER
: browser.isMobileDevice() ? MOBILE_VIDEO_CODEC_ORDER : DESKTOP_VIDEO_CODEC_ORDER;

return videoCodecMimeTypes.filter(codec =>
const supportedCodecs = videoCodecMimeTypes.filter(codec =>
(window.RTCRtpReceiver?.getCapabilities?.(MediaType.VIDEO)?.codecs ?? [])
.some(supportedCodec => supportedCodec.mimeType.toLowerCase() === `${MediaType.VIDEO}/${codec}`));

// Select VP8 as the default codec if RTCRtpReceiver.getCapabilities() is not supported by the browser or if it
// returns an empty set.
!supportedCodecs.length && supportedCodecs.push(CodecMimeType.VP8);

return supportedCodecs;
}

/**
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