hi_venc_h264_adv_stream_info

Function

Defines the advanced features of an H.264 stream.

For Ascend 950PR/Ascend 950DT, this structure is not supported.

For Atlas A3 training products/Atlas A3 inference products, this structure is not supported.

For Atlas A2 training products/Atlas A2 inference products, this structure is not supported.

For Atlas inference products, this structure is reserved.

Definition

typedef struct {
    hi_u32 residual_bits;
    hi_u32 head_bits;
    hi_u32 madi_val;
    hi_u32 madp_val;
    hi_double psnr_val;
    hi_u32 sse_lcu_cnt;
    hi_u64 sse_sum;
    hi_venc_sse_info sse_info[HI_VENC_MAX_SSE_NUM];
    hi_u32 qp_hist[HI_VENC_QP_HIST_NUM];
    hi_u32 move_scene16x16_num;
    hi_u32 move_scene_bits;
} hi_venc_h264_adv_stream_info;

For details about basic data types hi_u32, hi_double, and hi_u64, see Basic Data Types.

Members

Member	Description
residual_bits	Number of residual bits in the current frame. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.
head_bits	Number of bits in the header of the current frame. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.
madi_val	MADi value of the spatial texture complexity of the current frame. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.
madp_val	MADp value of the temporal motion complexity of the current frame. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.
psnr_val	Peak signal-to-noise ratio (PSNR) value of the current frame. The formula for calculating the PSNR varies according to the software. Therefore, the PSNR also varies. The psnr_val value can be obtained only when the product of the input image resolution is less than 4096 × 2032.
sse_lcu_cnt	Number of LCUs in the current frame.
sse_sum	Sum of squared errors (SSE) of the current frame. The formula for calculating the SSE varies according to the software. Therefore, the SSE also varies.
sse_info	SSE of the eight regions in the current frame. For details, see hi_venc_sse_info. The formula for calculating the SSE varies according to the software. Therefore, the SSE also varies. #define HI_VENC_MAX_SSE_NUM 8
qp_hist	QP histogram of the current frame. For Atlas 200I/500 A2 inference products, this parameter is not supported currently. #define HI_VENC_QP_HIST_NUM 52
move_scene16x16_num	Number of 16 × 16 foreground CUs in the current frame. The foreground macroblock-level stream control needs to be enabled. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.
move_scene_bits	Number of foreground bits in the current frame. The foreground macroblock-level stream control needs to be enabled. For Atlas 200I/500 A2 inference products, this parameter is not supported currently.

Parent topic: VENC/JPEGE