Disable the 4K option for SoCs older than the A9

This commit is contained in:
Cameron Gutman
2019-06-05 18:59:40 -07:00
parent 28ff29bb96
commit 636143ee97

View File

@@ -143,7 +143,7 @@ static const int bitrateTable[] = {
// Only show the 120 FPS option if we have a > 60-ish Hz display
bool enable120Fps = false;
if (@available(iOS 10.3, *)) {
if (@available(iOS 10.3, tvOS 10.3, *)) {
if ([UIScreen mainScreen].maximumFramesPerSecond > 62) {
enable120Fps = true;
}
@@ -152,8 +152,20 @@ static const int bitrateTable[] = {
[self.framerateSelector removeSegmentAtIndex:2 animated:NO];
}
// Only show the 4K option for "recent" devices. We'll judge that by whether
// they support HEVC decoding (A9 or later).
if (@available(iOS 11.0, tvOS 11.0, *)) {
if (!VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC)) {
[self.resolutionSelector removeSegmentAtIndex:3 animated:NO];
}
}
else {
[self.resolutionSelector removeSegmentAtIndex:3 animated:NO];
}
// Disable the HEVC selector if HEVC is not supported by the hardware
// or the version of iOS.
// or the version of iOS. See comment in Connection.m for reasoning behind
// the iOS 11.3 check.
if (@available(iOS 11.3, tvOS 11.3, *)) {
if (VTIsHardwareDecodeSupported(kCMVideoCodecType_HEVC)) {
[self.hevcSelector setSelectedSegmentIndex:currentSettings.useHevc ? 1 : 0];