MMIOM CODEC DECOMPRESS

This message requests the CODEC Proc to decompress the data.

Syntax

param1
PHCODEC phCODEC; /* Pointer to CODEC handle. */

param2
USHORT usMsg; /* Set to MMIOM_CODEC_DECOMPRESS. */

param3
LONG lParam1; /* Pointer to the MMVIDEODECOMPRESS structure. */

param4
LONG lParam2; /* This parameter is not used. */

Parameters

phCODEC (PHCODEC) - input

Pointer to CODEC handle.

usMsg (USHORT) - input

Set to **MMIOM_CODEC_DECOMPRESS**.

lParam1 (LONG) - input

Pointer to the MMVIDEODECOMPRESS structure.

lParam2 (LONG) - input

This parameter is not used.

Returns

rc (ULONG) - returns

Return codes indicating success or failure:

• MMIO_SUCCESS The data is requested successfully.
• MMIO_ERROR An error code is returned.
• MMIOERR_ERROR_IN_FRAME_DATA An invalid frame was detected.
• MMIOERR_INVALID_DIM_ALIGN An invalid pixel alignment was detected.

Remarks

This section has no remarks.