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Force more compatible transcoding profile for LiveTV (#11801)

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gnattu 2024-05-24 21:36:59 +08:00 committed by GitHub
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commit e7b1162cb3
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Jellyfin.Api/Helpers/MediaInfoHelper.cs
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@ -385,6 +385,19 @@ public class MediaInfoHelper
/// <returns>A <see cref="Task"/> containing the <see cref="LiveStreamResponse"/>.</returns>
public async Task<LiveStreamResponse> OpenMediaSource(HttpContext httpContext, LiveStreamRequest request)
{
// Enforce more restrictive transcoding profile for LiveTV due to compatability reasons
// Cap the MaxStreamingBitrate to 20Mbps, because we are unable to reliably probe source bitrate,
// which will cause the client to request extremely high bitrate that may fail the player/encoder
request.MaxStreamingBitrate = request.MaxStreamingBitrate > 20000000 ? 20000000 : request.MaxStreamingBitrate;
if (request.DeviceProfile is not null)
{
// Remove all fmp4 transcoding profiles, because it causes playback error and/or A/V sync issues
// Notably: Some channels won't play on FireFox and LG webOs
// Some channels from HDHomerun will experience A/V sync issues
request.DeviceProfile.TranscodingProfiles = request.DeviceProfile.TranscodingProfiles.Where(p => !string.Equals(p.Container, "mp4", StringComparison.OrdinalIgnoreCase)).ToArray();
}
var result = await _mediaSourceManager.OpenLiveStream(request, CancellationToken.None).ConfigureAwait(false);
var profile = request.DeviceProfile;