61 lines
2.9 KiB
Diff
61 lines
2.9 KiB
Diff
diff --git a/src/3rdparty/chromium/media/gpu/mac/vt_video_encode_accelerator_mac.cc b/src/3rdparty/chromium/media/gpu/mac/vt_video_encode_accelerator_mac.cc
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index d4b0161b2e..e5a0eb1967 100644
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--- a/src/3rdparty/chromium/media/gpu/mac/vt_video_encode_accelerator_mac.cc
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+++ b/src/3rdparty/chromium/media/gpu/mac/vt_video_encode_accelerator_mac.cc
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@@ -29,12 +29,6 @@
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#include "media/base/video_types.h"
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#include "media/video/video_encode_accelerator.h"
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-// This is a min version of macOS where we want to support SVC encoding via
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-// EnableLowLatencyRateControl flag. The flag is actually supported since 11.3,
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-// but there we see frame drops even with ample bitrate budget. Excessive frame
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-// drops were fixed in 12.0.1.
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-#define LOW_LATENCY_FLAG_AVAILABLE_VER 12.0.1
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-
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namespace media {
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namespace {
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@@ -277,8 +271,6 @@ VTVideoEncodeAccelerator::GetSupportedH264Profiles() {
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profile.rate_control_modes = VideoEncodeAccelerator::kConstantMode |
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VideoEncodeAccelerator::kVariableMode;
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profile.scalability_modes.push_back(SVCScalabilityMode::kL1T1);
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- if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *))
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- profile.scalability_modes.push_back(SVCScalabilityMode::kL1T2);
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for (const auto& supported_profile : kSupportedProfiles) {
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if (VideoCodecProfileToVideoCodec(supported_profile) == VideoCodec::kH264) {
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@@ -814,14 +806,6 @@ bool VTVideoEncodeAccelerator::CreateCompressionSession(
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encoder_values.push_back(kCFBooleanFalse);
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}
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- if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *)) {
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- // Remove the validation once HEVC SVC mode is supported on macOS.
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- if (require_low_delay_ && codec == VideoCodec::kH264) {
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- encoder_keys.push_back(
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- kVTVideoEncoderSpecification_EnableLowLatencyRateControl);
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- encoder_values.push_back(kCFBooleanTrue);
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- }
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- }
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base::ScopedCFTypeRef<CFDictionaryRef> encoder_spec =
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video_toolbox::DictionaryWithKeysAndValues(
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encoder_keys.data(), encoder_values.data(), encoder_keys.size());
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@@ -891,19 +875,8 @@ bool VTVideoEncodeAccelerator::ConfigureCompressionSession(VideoCodec codec) {
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// Remove the validation once HEVC SVC mode is supported on macOS.
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if (num_temporal_layers_ == 2 && codec_ == VideoCodec::kH264) {
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- if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *)) {
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- if (!session_property_setter.IsSupported(
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- kVTCompressionPropertyKey_BaseLayerFrameRateFraction)) {
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- DLOG(ERROR) << "BaseLayerFrameRateFraction is not supported";
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- return false;
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- }
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- rv &= session_property_setter.Set(
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- kVTCompressionPropertyKey_BaseLayerFrameRateFraction, 0.5);
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- DLOG_IF(ERROR, !rv) << " Setting BaseLayerFrameRate property failed.";
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- } else {
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DLOG(ERROR) << "SVC encoding is not supported on this OS version.";
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rv = false;
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- }
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}
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return rv;
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