hi_mpi_vi_set_dev_bind_pipe
Applicability
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Description
Sets the binding relationship between VI devices and physical pipes in one-to-many mode.
Prototype
hi_s32 hi_mpi_vi_set_dev_bind_pipe(hi_vi_dev vi_dev, const hi_vi_dev_bind_pipe *dev_bind_pipe)
Parameters
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Parameter |
Input/Output |
Description |
|---|---|---|
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vi_dev |
Input |
VI device ID. Value range: [0, 4) |
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dev_bind_pipe |
Input |
Physical VI pipe ID. Value range: [0, 4) In WDR mode, pipe 0 and pipe 1 must be in the same group, and pipe 2 and pipe 3 must be in the same group. That is, the num parameter in the hi_vi_dev_bind_pipe structure is set to 2, and the elements in the pipe_id array in the hi_vi_dev_bind_pipe structure are set to 0 and 1 or 2 and 3. |
Returns
- 0: success
- Other values: failure. For details, see VI Return Codes.
Restrictions
- This API can be called to bind a physical pipe only after a VI device is used by calling hi_mpi_vi_enable_dev and before a pipe is created by calling hi_mpi_vi_create_pipe.
- A pipe that has been created cannot be bound.
- You are advised to bind the VI device with high bandwidth to pipe 0 or pipe 1.