C Specification

The inputModeFlags field reports the various commmand buffer input granularities supported by the implementation as follows:

// Provided by VK_EXT_video_encode_h264
typedef enum VkVideoEncodeH264InputModeFlagBitsEXT {
    VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT = 0x00000001,
    VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT = 0x00000002,
    VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT = 0x00000004,
} VkVideoEncodeH264InputModeFlagBitsEXT;

Description

  • VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT indicates a single command buffer must at least encode an entire frame. Any non-VCL NALUs must be encoded using the same command buffer as the frame if VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT is not supported.

  • VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT indicates a single command buffer must at least encode a single slice. Any non-VCL NALUs must be encoded using the same command buffer as the first slice of the frame if VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT is not supported.

  • VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT indicates a single command buffer may encode a non-VCL NALU by itself.

An implementation must support at least one of VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT or VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT.

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

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