hi_vo_video_layer_attr

Function

Defines the attributes of a video layer.

Definition

typedef struct {
    hi_rect display_rect;
    hi_size img_size;
    hi_u32 display_frame_rate;
    hi_pixel_format pixel_format;
    hi_bool double_frame_en;
    hi_bool cluster_mode_en;
    hi_dynamic_range dst_dynamic_range;
    hi_u32 display_buf_len;
    hi_vo_partition_mode partition_mode;
    hi_compress_mode compress_mode;
} hi_vo_video_layer_attr;

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

Members

Member	Description
display_rect	Rectangular video display region. For details, see hi_rect. When partition_mode is set to HI_VO_PARTITION_MODE_SINGLE, display_rect.x and display_rect.y are dynamic attributes, and display_rect.width and display_rect.height are static attributes. When partition_mode is set to HI_VO_PARTITION_MODE_MULTI, display_rect is a static attribute.
img_size;	Image resolution, that is, size of the combined image, a static attribute. For details, see hi_size.
display_frame_rate	Frame rate for video display, a static attribute.
pixel_format	Input pixel format of the video layer, a static attribute. For details, see hi_pixel_format. The following formats are supported: YVU420 SEMIPLANAR, YVU422 SEMIPLANAR, and YUV400.
double_frame_en	Frame rate doubling switch of a video layer, a static attribute. Not supported in the current version.
cluster_mode_en	Memory cluster mode switch of a video layer, a static attribute. Not supported in the current version.
dst_dynamic_range	Output dynamic range type of a video layer, a static attribute. For details, see hi_dynamic_range.
display_buf_len	Display buffer length of a video layer, a static attribute. Not required in the current scenario.
partition_mode	Split mode of a video layer, a static attribute. For details, see hi_vo_partition_mode.
compress_mode	Compression or decompression mode of a video layer, a static attribute. For details, see hi_compress_mode. Only HI_COMPRESS_MODE_NONE is supported.

Parent topic: VO