I have some code that at least /used/ to work for capturing DV frames
from an external box into a piece of memory and am porting it to a
new application. Unfortunately this old code is no longer buildable.
The series of operations is:
* EnterMovies
* OpenDefaultComponent for the sequence grabber, call SGInitialize
and SGSetDataRef with seqGrabDontMakeMovie
* Open a video channel with SGNewChannel(VideoMediaType) and
SGSetChannelUsage to be Record and Low latency capture.
* Connect the channel to the correct device with SGSetChannelDevice
and SGSetChannelDeviceInput
* Calling SGGetSrcVideoBounds and SGGetChannelDeviceAndInputNames
returns the expected result.
* Call QTNewGWorld, find the pixmap with GetGWorldPixMap and lock it
with LockPixels.
* I then call SGSetGWorld with arguments of the component, the gworld
and GetGWorldDevice(gworld) and it returns with -32767
Does anyone have any idea what I've missed and/or done wrong?
Thanks,
Dave
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