Reading
Streams from an AVI File
The following
subroutine obtains stream information from an AVI file and determines the
stream type from the AVISTREAMINFO structure returned by the AVIStreamInfo function.
// StreamTypes - opens the streams in an AVI file
and determines
// stream types.
//
// Global variables
// gcpavi - count of streams in an AVI file
// gapavi[] = array of stream-interface pointers
void StreamTypes(HWND hwnd)
{
AVISTREAMINFO avis;
LONG r, lHeight = 0;
WORD w;
int i;
RECT rc;
// Walk through all streams.
for (i =
0; i < gcpavi; i++) {
AVIStreamInfo(gapavi[i], &avis, sizeof(avis));
if
(avis.fccType == streamtypeVIDEO) {
//
Place video-processing functions here.
}
else
if (avis.fccType == streamtypeAUDIO) {
//
Place audio-processing functions here.
}
else
if (avis.fccType == streamtypeTEXT) {
//
Place text-processing functions here.
}
}
}