hi_mpi_vpc_convert_color_v2

Applicability

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	☓

Description

Converts the image format and sets the transparency of RGBA images based on the extended functions of hi_mpi_vpc_convert_color. This API is asynchronous.

Prototype

hi_s32 hi_mpi_vpc_convert_color_v2(hi_vpc_chn chn, const hi_vpc_pic_info *source_pic, hi_vpc_pic_info *dest_pic, hi_csc_conf *conf, hi_u32 *task_id, hi_s32 milli_sec)

Parameters

Parameter	Input/Output	Description
chn	Input	Channel ID for image processing. Atlas A3 training products/Atlas A3 inference products: The value range of this parameter is [0, 256). The maximum number of channels is 256. Atlas A2 training products/Atlas A2 inference products: The value range of this parameter is [0, 256). The maximum number of channels is 256. Atlas 200I/500 A2 inference products: The value range of this parameter is [0, 128). The maximum number of channels is 128. Atlas inference products: The value range of this parameter is [0, 256). The maximum number of channels is 256.
source_pic	Input	Pointer to the source image information.
dest_pic	Input	Pointer to the destination image information. You must specify the width, height, width stride, height stride, buffer address, buffer size, and format of the output image. The width and height of the output image must be the same as those of the input image. Otherwise, an error is reported. If the width or height of the output image is set to 0, VPC uses the width and height of the input image as the width and height of the output image. In addition, VPC calculates the width stride and height stride based on the alignment requirements, which vary with the image format. For details, see Table 2. The width stride and height stride of the output image must meet the alignment requirements, which vary with the image format. For details, see Table 2.
conf	Input	Pointer to the transparency value of the output image. Transparency is valid only for the following image formats: PIXEL_FORMAT_ARGB_8888 = 14, PIXEL_FORMAT_ABGR_8888 = 15, PIXEL_FORMAT_RGBA_8888 = 16, PIXEL_FORMAT_BGRA_8888 = 17,
task_id	Output	Pointer to the task ID, which is used to identify a task.
milli_sec	Input	Timeout interval (ms): –1: blocking mode 0: non-blocking mode > 0: timeout interval (timeout mode). The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the value of milli_sec is set to 1, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

Returns

0: success
Other values: failure. For details, see VPC Return Codes.

Restrictions

Model	Restriction
Atlas inference products	The input and output image resolution must be in the range of [10 × 6, 4096 × 4096]. For details about the input image format, output image format, width and height alignment, and buffer size, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. When the input image format is YUV400, the output image format must be the same.
Atlas A3 training products/Atlas A3 inference products Atlas A2 training products/Atlas A2 inference products Atlas 200I/500 A2 inference products	The input and output image resolution must be in the range of [10 × 6, 4096 × 8192]. For details about the input image format, output image format, width and height alignment, and buffer size, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

Model

Restriction

Atlas inference products

The input and output image resolution must be in the range of [10 × 6, 4096 × 4096].
For details about the input image format, output image format, width and height alignment, and buffer size, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. When the input image format is YUV400, the output image format must be the same.

Atlas A3 training products/Atlas A3 inference products

Atlas A2 training products/Atlas A2 inference products

Atlas 200I/500 A2 inference products

The input and output image resolution must be in the range of [10 × 6, 4096 × 8192].
For details about the input image format, output image format, width and height alignment, and buffer size, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

Parent topic: Vision Preprocessing Core (VPC)