hi_mpi_vi_set_pipe_frame_dump_attr

Applicable Products

Function

Sets the dump attributes of a physical VI pipe.

Prototype

hi_s32 hi_mpi_vi_set_pipe_frame_dump_attr(hi_vi_pipe vi_pipe, const hi_vi_frame_dump_attr *dump_attr)

Parameters

Returns

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

Restrictions

• This API can be called only after a VI pipe is created by calling hi_mpi_vi_create_pipe.

• To dump data in different pixel formats, you can specify the pixel format when creating a pipe by calling hi_mpi_vi_create_pipe before dumping data. The pixel format must be aligned with the actual output format of the sensor module.
• To dump cropped images, you can call hi_mpi_vi_set_pipe_pre_crop to set pipe cropping before dumping.
• To dump compressed or non-compressed images, you can specify the compression type when creating a pipe by calling hi_mpi_vi_create_pipe before dumping.
• Virtual pipes are not supported.
• If the current API is called after the pipe is started by calling hi_mpi_vi_start_pipe, the images that are not fetched by calling hi_mpi_vi_get_pipe_frame in the internal buffer are cleared.

Reference

For the API call sequence, see Video Data Obtaining.