public static BufferCapabilities getBufferCaps(string path, VideoDevice device)
{
if (cache.TryGetValue(path, out var res))
{
return(res);
}
res = new BufferCapabilities(device);
cache.Add(path, res);
return(res);
}
static eBufferCapabilityFlags query(VideoDevice device, eBufferType bt)
{
eBufferCapabilityFlags res = eBufferCapabilityFlags.None;
if (device.queryBufferCaps(bt, eMemory.MemoryMap))
{
res |= eBufferCapabilityFlags.MemoryMap;
}
if (device.queryBufferCaps(bt, eMemory.UserPointer))
{
res |= eBufferCapabilityFlags.UserPointer;
}
if (device.queryBufferCaps(bt, eMemory.DmaSharedBuffer))
{
res |= eBufferCapabilityFlags.DmaSharedBuffer;
}
return(res);
}
BufferCapabilities(VideoDevice device)
{
videoOutput = query(device, eBufferType.VideoOutput);
videoOutputMPlane = query(device, eBufferType.VideoOutputMPlane);
}