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Add compatibility checks for HEVC Main10 in VT backend

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Cameron Gutman
2019-11-05 18:36:43 -08:00
parent 5e57a7d5c0
commit c20daa8867
2 changed files with 48 additions and 1 deletions
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app/streaming/video/ffmpeg-renderers/vt.mm
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@@ -14,6 +14,7 @@
#import <VideoToolbox/VideoToolbox.h>
#import <AVFoundation/AVFoundation.h>
#import <dispatch/dispatch.h>
#import <Metal/Metal.h>
class VTRenderer : public IFFmpegRenderer
{
@@ -234,6 +235,52 @@ public:
"No HW accelerated HEVC decode via VT");
return false;
}
// HEVC Main10 requires more extensive checks because there's no
// simple API to check for Main10 hardware decoding, and if we don't
// have it, we'll silently get software decoding with horrible performance.
if (params->videoFormat == VIDEO_FORMAT_H265_MAIN10) {
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 101400
if (__builtin_available(macOS 10.14, *)) {
id<MTLDevice> device = MTLCreateSystemDefaultDevice();
if (device == nullptr) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Unable to get default Metal device");
return false;
}
// Exclude all GPUs earlier than macOSGPUFamily2
// https://developer.apple.com/documentation/metal/mtlfeatureset/mtlfeatureset_macos_gpufamily2_v1
if ([device supportsFeatureSet:MTLFeatureSet_macOS_GPUFamily2_v1]) {
if ([device.name containsString:@"Intel"]) {
// 500-series Intel GPUs are Skylake and don't support Main10 hardware decoding
if ([device.name containsString:@" 5"]) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No HEVC Main10 support on Skylake iGPU");
return false;
}
}
else if ([device.name containsString:@"AMD"]) {
// FirePro D, M200, and M300 series GPUs don't support Main10 hardware decoding
if ([device.name containsString:@"FirePro D"] ||
[device.name containsString:@" M2"] ||
[device.name containsString:@" M3"]) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No HEVC Main10 support on AMD GPUs until Polaris");
return false;
}
}
}
}
else
#endif
{
// Fail closed for HEVC Main10 if we're not on 10.14+
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No HEVC Main10 support on < macOS 10.14");
return false;
}
}
}
else
#endif