| Microsoft DirectX 9.0 |
The ReleaseBuffer method releases a compressed buffer after processing.
Syntax
HRESULT ReleaseBuffer(
DWORD dwTypeIndex,
DWORD dwBufferIndex
);
Parameters
dwTypeIndex
[in] Zero-based index into the surface types supported by the video accelerator driver, or 0xFFFFFFFF.
dwBufferIndex
[in] Buffer index within the type. The valid range is from zero to the value of the dwNumCompBuffers member of the AMVACompBufferInfo structure.
Return Values
Returns an HRESULT value that depends on the implementation of the interface. HRESULT can include one of the following standard constants, or other values not listed.
| Return code | Description |
| E_FAIL | Failure. |
| E_INVALIDARG | Argument is invalid. |
| E_NOTIMPL | Method is not supported. |
| E_POINTER | Null pointer argument. |
| S_OK | Success. |
Remarks
It is only valid to call this method after the pins are connected. Calling this method unlocks a single buffer. The video decoder calls this method when the buffer is no longer required and after any calls to Execute have been made. Note that the buffer pointer is no longer valid after this call.
See Also