hi_venc_h264_attr

(Reserved) Defines the H.264 encoding attributes.

Atlas 350 Accelerator Card does not support this structure.

Atlas A3 training product/Atlas A3 inference product does not support this structure.

Atlas A2 training product/Atlas A2 inference product does not support this structure.

For the Atlas inference product, this structure is reserved and is not supported currently.

typedef struct {
    hi_bool rcn_ref_share_buf_en; 
    hi_u32 frame_buf_ratio;
} hi_venc_h264_attr;

Member	Description
rcn_ref_share_buf_en	Buffer sharing enable for the reference frame and write-back frame. Reserved. Value range: [0, 1] 1: enabled; 0: disabled. This is a static attribute.
frame_buf_ratio	Frame buffer ratio. After being set, the system compresses the frame buffer based on the ratio. Value range: [70, 100] For example, if frame_buf_ratio is set to 80, the frame buffer size is 80% of the original size. The default value is 100, indicating that the frame buffer is not compressed. If the value is not within the value range, the frame buffer is not compressed. If the value is within the range of [70, 100), the frame buffer is compressed proportionally, which may affect the encoding quality. You are advised to set this parameter to a value within the range of [70, 100) when the image texture is not complex, the resolution is greater than 640 x 480, and the memory bandwidth is required.

Member

Description

rcn_ref_share_buf_en

Buffer sharing enable for the reference frame and write-back frame. Reserved.

Value range: [0, 1] 1: enabled; 0: disabled.

This is a static attribute.

frame_buf_ratio

Frame buffer ratio. After being set, the system compresses the frame buffer based on the ratio.

Value range: [70, 100] For example, if frame_buf_ratio is set to 80, the frame buffer size is 80% of the original size.

The default value is 100, indicating that the frame buffer is not compressed.
If the value is not within the value range, the frame buffer is not compressed.
If the value is within the range of [70, 100), the frame buffer is compressed proportionally, which may affect the encoding quality. You are advised to set this parameter to a value within the range of [70, 100) when the image texture is not complex, the resolution is greater than 640 x 480, and the memory bandwidth is required.

Parent topic: VENC video/JPEGE image encoding