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Use HEVC on iOS 11.3 and later. Fixes #296

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Cameron Gutman
2018-04-10 18:57:02 -07:00
parent 0a19c5950a
commit 74283a6763
1 changed files with 7 additions and 8 deletions
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15
Limelight/Stream/Connection.m
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@@ -342,17 +342,16 @@ void ClLogMessage(const char* format, ...)
#if TARGET_OS_IPHONE
// On iOS 11, we can use HEVC if the server supports encoding it
// and this device has hardware decode for it (A9 and later)
if (@available(iOS 11.0, *)) {
// FIXME: Disabled due to incompatibility with iPhone X causing video
// to freeze. Additionally, RFI is not supported so packet loss recovery
// is worse with HEVC than H.264.
// Streaming with a limited bandwith will result in better quality with HEVC
//_streamConfig.supportsHevc = VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC);
// and this device has hardware decode for it (A9 and later).
// Additionally, iPhone X had a bug which would cause video
// to freeze after a few minutes with HEVC prior to iOS 11.3.
// As a result, we will only use HEVC on iOS 11.3 or later.
if (@available(iOS 11.3, *)) {
_streamConfig.supportsHevc = VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC);
}
#else
if (@available(macOS 10.13, *)) {
// Streaming with limited bandwidth will result in better quality with HEVC
if (VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC) || _streamConfig.streamingRemotely != 0)
_streamConfig.supportsHevc = true;
}