AVIStreamPrevSample
The AVIStreamPrevSample
macro locates the nearest nonempty sample that precedes a specified position in
a stream.
AVIStreamPrevSample(
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pavi, |
|
|
lPos |
|
|
); |
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Parameters
pavi
Handle of an
open stream.
lPos
Starting
position to search in the stream.
Return Values
Returns the
sample position if successful or - 1 otherwise.
Remarks
The sample
position returned does not include the sample specified by lPos.
The AVIStreamPrevSample
macro is defined as follows:
#define AVIStreamPrevSample(pavi, lPos) \
AVIStreamFindSample(pavi, lPos - 1, FIND_PREV | FIND_ANY)