hi_venc_vui_video_signal

Description

Defines the video signal information in the VUI of an H.264/H.265 encoding channel.

Prototype

typedef struct {
    hi_u8  video_signal_type_present_flag;
    hi_u8  video_format;
    hi_u8  video_full_range_flag;
    hi_u8  colour_description_present_flag;
    hi_u8  colour_primaries;
    hi_u8  transfer_characteristics;
    hi_u8  matrix_coefficients;
 } hi_venc_vui_video_signal;

Members

Member	Description
video_signal_type_present_flag	Flag that indicates whether the video signal information in the VUI field takes effect. The default value is 1. The options are 0 and 1. Other parameters in the table are valid only when this flag is set to 1.
video_format	For details, see the H.264/H.265 protocol. The default value is 5. Value range: [0, 7] for H.264; [0, 5] for H.265.
video_full_range_flag	For details about the meaning, see the H.264/H.265 protocol. The value can be 0 or 1. If this parameter is set to 0, the pixel value range is limited. The luminance value range is 16–235, and the chrominance value range is 16–240. On the Atlas 200I/500 A2 inference products, the default value of video_full_range_flag is 0 (indicating limited_range) for H.265 streams and 1 (indicating full_range) for H.264 streams during VENC encoding. For H.264 and H.265 streams on the Atlas inference products, the default value of video_full_range_flag is 0 (indicating limited_range) during VENC encoding.
colour_description_present_flag	For details, see the H.264/H.265 protocol. The default value is 1. You do not need to set this parameter because the system sets it based on the actual image information.
colour_primaries	For details, see the H.264/H.265 protocol. The default value is 1. You do not need to set this parameter because the system sets it based on the actual image information.
transfer_characteristics	For details, see the H.264/H.265 protocol. The default value is 1. You do not need to set this parameter because the system sets it based on the actual image information.
matrix_coefficients	For details, see the H.264/H.265 protocol. The default value is 1. You do not need to set this parameter because the system sets it based on the actual image information.

Parent topic: VENC/JPEGE