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FFmpeg 5.1.6
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Main Vulkan context, allocated as AVHWDeviceContext.hwctx. More...
#include <libavutil/hwcontext_vulkan.h>
Data Fields | |
| const VkAllocationCallbacks * | alloc |
| Custom memory allocator, else NULL. More... | |
| PFN_vkGetInstanceProcAddr | get_proc_addr |
| Pointer to the instance-provided vkGetInstanceProcAddr loading function. More... | |
| VkInstance | inst |
| Vulkan instance. More... | |
| VkPhysicalDevice | phys_dev |
| Physical device. More... | |
| VkDevice | act_dev |
| Active device. More... | |
| VkPhysicalDeviceFeatures2 | device_features |
| This structure should be set to the set of features that present and enabled during device creation. More... | |
| const char *const * | enabled_inst_extensions |
| Enabled instance extensions. More... | |
| int | nb_enabled_inst_extensions |
| const char *const * | enabled_dev_extensions |
| Enabled device extensions. More... | |
| int | nb_enabled_dev_extensions |
| int | queue_family_index |
| Queue family index for graphics operations, and the number of queues enabled for it. More... | |
| int | nb_graphics_queues |
| int | queue_family_tx_index |
| Queue family index for transfer operations and the number of queues enabled. More... | |
| int | nb_tx_queues |
| int | queue_family_comp_index |
| Queue family index for compute operations and the number of queues enabled. More... | |
| int | nb_comp_queues |
| int | queue_family_encode_index |
| Queue family index for video encode ops, and the amount of queues enabled. More... | |
| int | nb_encode_queues |
| int | queue_family_decode_index |
| Queue family index for video decode ops, and the amount of queues enabled. More... | |
| int | nb_decode_queues |
Main Vulkan context, allocated as AVHWDeviceContext.hwctx.
All of these can be set before init to change what the context uses
Definition at line 42 of file hwcontext_vulkan.h.
| const VkAllocationCallbacks* AVVulkanDeviceContext::alloc |
Custom memory allocator, else NULL.
Definition at line 46 of file hwcontext_vulkan.h.
| PFN_vkGetInstanceProcAddr AVVulkanDeviceContext::get_proc_addr |
Pointer to the instance-provided vkGetInstanceProcAddr loading function.
If NULL, will pick either libvulkan or libvolk, depending on libavutil's compilation settings, and set this field.
Definition at line 53 of file hwcontext_vulkan.h.
| VkInstance AVVulkanDeviceContext::inst |
| VkPhysicalDevice AVVulkanDeviceContext::phys_dev |
Physical device.
Definition at line 63 of file hwcontext_vulkan.h.
| VkDevice AVVulkanDeviceContext::act_dev |
Active device.
Definition at line 68 of file hwcontext_vulkan.h.
| VkPhysicalDeviceFeatures2 AVVulkanDeviceContext::device_features |
This structure should be set to the set of features that present and enabled during device creation.
When a device is created by FFmpeg, it will default to enabling all that are present of the shaderImageGatherExtended, fragmentStoresAndAtomics, shaderInt64 and vertexPipelineStoresAndAtomics features.
Definition at line 76 of file hwcontext_vulkan.h.
| const char* const* AVVulkanDeviceContext::enabled_inst_extensions |
Enabled instance extensions.
If supplying your own device context, set this to an array of strings, with each entry containing the specified Vulkan extension string to enable. Duplicates are possible and accepted. If no extensions are enabled, set these fields to NULL, and 0 respectively.
Definition at line 85 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_enabled_inst_extensions |
Definition at line 86 of file hwcontext_vulkan.h.
| const char* const* AVVulkanDeviceContext::enabled_dev_extensions |
Enabled device extensions.
By default, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier, VK_KHR_external_semaphore_fd and VK_EXT_external_memory_host are enabled if found. If supplying your own device context, these fields takes the same format as the above fields, with the same conditions that duplicates are possible and accepted, and that NULL and 0 respectively means no extensions are enabled.
Definition at line 96 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_enabled_dev_extensions |
Definition at line 97 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::queue_family_index |
Queue family index for graphics operations, and the number of queues enabled for it.
If unavaiable, will be set to -1. Not required. av_hwdevice_create() will attempt to find a dedicated queue for each queue family, or pick the one with the least unrelated flags set. Queue indices here may overlap if a queue has to share capabilities.
Definition at line 106 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_graphics_queues |
Definition at line 107 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::queue_family_tx_index |
Queue family index for transfer operations and the number of queues enabled.
Required.
Definition at line 113 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_tx_queues |
Definition at line 114 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::queue_family_comp_index |
Queue family index for compute operations and the number of queues enabled.
Required.
Definition at line 120 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_comp_queues |
Definition at line 121 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::queue_family_encode_index |
Queue family index for video encode ops, and the amount of queues enabled.
If the device doesn't support such, queue_family_encode_index will be -1. Not required.
Definition at line 128 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_encode_queues |
Definition at line 129 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::queue_family_decode_index |
Queue family index for video decode ops, and the amount of queues enabled.
If the device doesn't support such, queue_family_decode_index will be -1. Not required.
Definition at line 136 of file hwcontext_vulkan.h.
| int AVVulkanDeviceContext::nb_decode_queues |
Definition at line 137 of file hwcontext_vulkan.h.
1.9.4