ICSeqCompressFrameStart
The ICSeqCompressFrameStart
function initializes resources for compressing a sequence of frames using the ICSeqCompressFrame function.
BOOL ICSeqCompressFrameStart(
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PCOMPVARS pc, |
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LPBITMAPINFO lpbiIn |
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); |
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Parameters
pc
Address of a COMPVARS structure initialized with
information for compression.
lpbiIn
Format of the
data to be compressed.
Return Values
Returns TRUE
if successful or FALSE otherwise.
Remarks
This function
uses a COMPVARS structure to provide settings for the specified
compressor and intersperses key frames at the rate specified by the lKey
member of COMPVARS. You can specify values for the data rate for the
sequence and the key-frame frequency by using the appropriate members of COMPVARS.
Use the ICSeqCompressFrameStart,
ICSeqCompressFrame,
and ICSeqCompressFrameEnd
functions to compress a sequence of frames to a specified data rate and number
of key frames.
When finished
with compression, use the ICCompressorFree function to release the resources
specified in COMPVARS.
COMPVARS needs to be initialized before you use this function.
You can initialize the structure manually or you can allow the user to specify
a compressor and initialize a COMPVARS structure by using the ICCompressorChoose
function.
See Also