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Prevent opus more than 2 channels being remux on Safari

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Safari only supports stereo Opus, which requires a similar workaround as we are applying on WebOS for FLAC.
This commit is contained in:
gnattu 2024-12-11 14:50:57 +08:00
parent 92e8821003
commit 92caea08af
1 changed files with 43 additions and 0 deletions
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43
src/scripts/browserDeviceProfile.js
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@ -1028,6 +1028,49 @@ export default function (options) {
profile.TranscodingProfiles.push(...flacTranscodingProfiles);
}
if (safariSupportsOpus) {
const opusConditions = [
// Safari doesn't support opus with more than 2 channels
{
Condition: 'LessThanEqual',
Property: 'AudioChannels',
Value: '2',
IsRequired: false
}
];
profile.CodecProfiles.push({
Type: 'VideoAudio',
Codec: 'opus',
Conditions: opusConditions
});
const opusTranscodingProfiles = [];
// Split each video transcoding profile with opus so that the containing opus is only applied to 2 channels audio
profile.TranscodingProfiles.forEach(transcodingProfile => {
if (transcodingProfile.Type !== 'Video') return;
const audioCodecs = transcodingProfile.AudioCodec.split(',');
if (!audioCodecs.includes('opus')) return;
const opusTranscodingProfile = { ...transcodingProfile };
opusTranscodingProfile.AudioCodec = 'opus';
opusTranscodingProfile.MaxAudioChannels = '2';
opusTranscodingProfile.ApplyConditions = [
...opusTranscodingProfile.ApplyConditions || [],
...opusConditions
];
opusTranscodingProfiles.push(opusTranscodingProfile);
transcodingProfile.AudioCodec = audioCodecs.filter(codec => codec != 'opus').join(',');
});
profile.TranscodingProfiles.push(...opusTranscodingProfiles);
}
let maxH264Level = 42;
let h264Profiles = 'high|main|baseline|constrained baseline';