hi_mpi_vi_release_chn_frame
Applicability
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Supported |
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x |
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√ |
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Description
Releases a frame of image obtained from a VI channel.
Prototype
hi_s32 hi_mpi_vi_release_chn_frame(hi_vi_pipe vi_pipe, hi_vi_chn vi_chn, const hi_video_frame_info *frame_info)
Parameters
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Parameter |
Input/Output |
Description |
|---|---|---|
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vi_pipe |
Input |
Pipe ID. Value range: [0, 12) |
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vi_chn |
Input |
VI channel ID. Value range: [0, 1) |
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frame_info |
Input |
Structure of the VI frame information. |
Returns
- 0: success
- Other values: failure. For details, see VI Return Codes.
Restrictions
- This API must work with hi_mpi_vi_get_chn_frame, and the number of API calling times must be the same. Otherwise, an error is reported.
- Call hi_mpi_vi_get_chn_frame to obtain frame_info, and transfer the obtained frame_info to this API. Otherwise, the release may fail.
Parent topic: VI