[FFmpeg-devel] [PATCH] hwcontext_vulkan: do not use optical flow queueus by default

[Lynne]

We don't use them, and on NVIDIA, each queue takes around 30ms
to allocate, and the driver has a global limit of ONLY 112 queues.
---
 libavutil/hwcontext_vulkan.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/libavutil/hwcontext_vulkan.c b/libavutil/hwcontext_vulkan.c
index aa0bfa3756..243d68dc44 100644
--- a/libavutil/hwcontext_vulkan.c
+++ b/libavutil/hwcontext_vulkan.c
@@ -95,8 +95,6 @@ typedef struct VulkanDeviceFeatures {
     VkPhysicalDeviceDescriptorBufferFeaturesEXT descriptor_buffer;
     VkPhysicalDeviceShaderAtomicFloatFeaturesEXT atomic_float;
 
-    VkPhysicalDeviceOpticalFlowFeaturesNV optical_flow;
-
 #ifdef VK_KHR_shader_relaxed_extended_instruction
     VkPhysicalDeviceShaderRelaxedExtendedInstructionFeaturesKHR relaxed_extended_instruction;
 #endif
@@ -234,9 +232,6 @@ static void device_features_init(AVHWDeviceContext *ctx, VulkanDeviceFeatures *f
     FF_VK_STRUCT_EXT(s, &feats->device, &feats->relaxed_extended_instruction, FF_VK_EXT_RELAXED_EXTENDED_INSTR,
                      VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_RELAXED_EXTENDED_INSTRUCTION_FEATURES_KHR);
 #endif
-
-    FF_VK_STRUCT_EXT(s, &feats->device, &feats->optical_flow, FF_VK_EXT_OPTICAL_FLOW,
-                     VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_OPTICAL_FLOW_FEATURES_NV);
 }
 
 /* Copy all needed device features */
@@ -311,7 +306,6 @@ static void device_features_copy_needed(VulkanDeviceFeatures *dst, VulkanDeviceF
     COPY_VAL(expect_assume.shaderExpectAssume);
 #endif
 
-    COPY_VAL(optical_flow.opticalFlow);
 #undef COPY_VAL
 }
 
@@ -607,7 +601,6 @@ static const VulkanOptExtension optional_device_exts[] = {
     { VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME,              FF_VK_EXT_DEVICE_DRM             },
     { VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME,              FF_VK_EXT_ATOMIC_FLOAT           },
     { VK_KHR_COOPERATIVE_MATRIX_EXTENSION_NAME,               FF_VK_EXT_COOP_MATRIX            },
-    { VK_NV_OPTICAL_FLOW_EXTENSION_NAME,                      FF_VK_EXT_OPTICAL_FLOW           },
     { VK_EXT_SHADER_OBJECT_EXTENSION_NAME,                    FF_VK_EXT_SHADER_OBJECT          },
     { VK_KHR_SHADER_SUBGROUP_ROTATE_EXTENSION_NAME,           FF_VK_EXT_SUBGROUP_ROTATE        },
 #ifdef VK_KHR_shader_expect_assume
@@ -1533,7 +1526,6 @@ static int setup_queue_families(AVHWDeviceContext *ctx, VkDeviceCreateInfo *cd)
     PICK_QF(VK_QUEUE_GRAPHICS_BIT, VK_VIDEO_CODEC_OPERATION_NONE_KHR);
     PICK_QF(VK_QUEUE_COMPUTE_BIT, VK_VIDEO_CODEC_OPERATION_NONE_KHR);
     PICK_QF(VK_QUEUE_TRANSFER_BIT, VK_VIDEO_CODEC_OPERATION_NONE_KHR);
-    PICK_QF(VK_QUEUE_OPTICAL_FLOW_BIT_NV, VK_VIDEO_CODEC_OPERATION_NONE_KHR);
 
     PICK_QF(VK_QUEUE_VIDEO_ENCODE_BIT_KHR, VK_VIDEO_CODEC_OPERATION_ENCODE_H264_BIT_KHR);
     PICK_QF(VK_QUEUE_VIDEO_DECODE_BIT_KHR, VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_KHR);
-- 
2.49.0.395.g12beb8f557c