1 files changed, 0 insertions, 61 deletions
diff --git a/nixpkgs/pkgs/development/libraries/qt-6/patches/qtwebengine-darwin-no-low-latency-flag.patch b/nixpkgs/pkgs/development/libraries/qt-6/patches/qtwebengine-darwin-no-low-latency-flag.patch
deleted file mode 100644
index 3df917edf5cc..000000000000
--- a/nixpkgs/pkgs/development/libraries/qt-6/patches/qtwebengine-darwin-no-low-latency-flag.patch
+++ /dev/null
@@ -1,61 +0,0 @@
-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
-index d4b0161b2e..e5a0eb1967 100644
---- 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
-@@ -29,12 +29,6 @@
- #include "media/base/video_types.h"
- #include "media/video/video_encode_accelerator.h"
- 
--// This is a min version of macOS where we want to support SVC encoding via
--// EnableLowLatencyRateControl flag. The flag is actually supported since 11.3,
--// but there we see frame drops even with ample bitrate budget. Excessive frame
--// drops were fixed in 12.0.1.
--#define LOW_LATENCY_FLAG_AVAILABLE_VER 12.0.1
--
- namespace media {
- 
- namespace {
-@@ -277,8 +271,6 @@ VTVideoEncodeAccelerator::GetSupportedH264Profiles() {
-   profile.rate_control_modes = VideoEncodeAccelerator::kConstantMode |
-                                VideoEncodeAccelerator::kVariableMode;
-   profile.scalability_modes.push_back(SVCScalabilityMode::kL1T1);
--  if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *))
--    profile.scalability_modes.push_back(SVCScalabilityMode::kL1T2);
- 
-   for (const auto& supported_profile : kSupportedProfiles) {
-     if (VideoCodecProfileToVideoCodec(supported_profile) == VideoCodec::kH264) {
-@@ -814,14 +806,6 @@ bool VTVideoEncodeAccelerator::CreateCompressionSession(
-     encoder_values.push_back(kCFBooleanFalse);
-   }
- 
--  if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *)) {
--    // Remove the validation once HEVC SVC mode is supported on macOS.
--    if (require_low_delay_ && codec == VideoCodec::kH264) {
--      encoder_keys.push_back(
--          kVTVideoEncoderSpecification_EnableLowLatencyRateControl);
--      encoder_values.push_back(kCFBooleanTrue);
--    }
--  }
-   base::ScopedCFTypeRef<CFDictionaryRef> encoder_spec =
-       video_toolbox::DictionaryWithKeysAndValues(
-           encoder_keys.data(), encoder_values.data(), encoder_keys.size());
-@@ -891,19 +875,8 @@ bool VTVideoEncodeAccelerator::ConfigureCompressionSession(VideoCodec codec) {
- 
-   // Remove the validation once HEVC SVC mode is supported on macOS.
-   if (num_temporal_layers_ == 2 && codec_ == VideoCodec::kH264) {
--    if (__builtin_available(macOS LOW_LATENCY_FLAG_AVAILABLE_VER, *)) {
--      if (!session_property_setter.IsSupported(
--              kVTCompressionPropertyKey_BaseLayerFrameRateFraction)) {
--        DLOG(ERROR) << "BaseLayerFrameRateFraction is not supported";
--        return false;
--      }
--      rv &= session_property_setter.Set(
--          kVTCompressionPropertyKey_BaseLayerFrameRateFraction, 0.5);
--      DLOG_IF(ERROR, !rv) << " Setting BaseLayerFrameRate property failed.";
--    } else {
-       DLOG(ERROR) << "SVC encoding is not supported on this OS version.";
-       rv = false;
--    }
-   }
- 
-   return rv;