unsafe void DataItemGetVideoImage(NikonObject data) { string name = data.GetString(eNkMAIDCapability.kNkMAIDCapability_Name); NkMAIDSize videoDimensions = data.GetSize(eNkMAIDCapability.kNkMAIDCapability_Pixels); NkMAIDGetVideoImage videoImage = new NkMAIDGetVideoImage(); data.GetGeneric(eNkMAIDCapability.kNkMAIDCapability_GetVideoImage, new IntPtr(&videoImage)); // Note: Download 4MB at the time const int chunkSize = 4 * 1024 * 1024; uint totalSize = videoImage.ulDataSize; for (uint offset = 0; offset < totalSize; offset += chunkSize) { uint fragmentSize = Math.Min(chunkSize, totalSize - offset); byte[] buffer = new byte[fragmentSize]; fixed(byte *pBuffer = buffer) { videoImage.ulOffset = offset; videoImage.ulReadSize = (uint)buffer.Length; videoImage.ulDataSize = (uint)buffer.Length; videoImage.pData = new IntPtr(pBuffer); data.GetArrayGeneric(eNkMAIDCapability.kNkMAIDCapability_GetVideoImage, new IntPtr(&videoImage)); } NikonVideoFragment fragment = new NikonVideoFragment( name, totalSize, offset, buffer, videoDimensions.w, videoDimensions.h); Scheduler.Callback(new VideoFragmentReadyDelegate(OnVideoFragmentReady), this, fragment); } }
unsafe void DataItemGetVideoImage(NikonObject data) { string name = data.GetString(eNkMAIDCapability.kNkMAIDCapability_Name); NkMAIDSize videoDimensions = data.GetSize(eNkMAIDCapability.kNkMAIDCapability_Pixels); NkMAIDGetVideoImage videoImage = new NkMAIDGetVideoImage(); data.GetGeneric(eNkMAIDCapability.kNkMAIDCapability_GetVideoImage, new IntPtr(&videoImage)); // Note: Download 4MB at the time const int chunkSize = 4 * 1024 * 1024; uint totalSize = videoImage.ulDataSize; for (uint offset = 0; offset < totalSize; offset += chunkSize) { uint fragmentSize = Math.Min(chunkSize, totalSize - offset); byte[] buffer = new byte[fragmentSize]; fixed (byte* pBuffer = buffer) { videoImage.ulOffset = offset; videoImage.ulReadSize = (uint)buffer.Length; videoImage.ulDataSize = (uint)buffer.Length; videoImage.pData = new IntPtr(pBuffer); data.GetArrayGeneric(eNkMAIDCapability.kNkMAIDCapability_GetVideoImage, new IntPtr(&videoImage)); } NikonVideoFragment fragment = new NikonVideoFragment( name, totalSize, offset, buffer, videoDimensions.w, videoDimensions.h); Scheduler.Callback(new VideoFragmentReadyDelegate(OnVideoFragmentReady), this, fragment); } }
public void GetArrayGeneric(eNkMAIDCapability cap, IntPtr destination) { _scheduler.Invoke(() => { _object.GetArrayGeneric(cap, destination); }); }