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Use video stride correctly in windows

This commit is contained in:
Eduardo Ramos Ibáñez 2023-07-05 22:14:33 +02:00
parent d2279aa02a
commit 5d8bf86ea5
1 changed files with 6 additions and 5 deletions
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11
src/main/java/com/github/eduramiba/webcamcapture/drivers/capturemanager/CaptureManagerFrameGrabberSession.java
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@ -36,6 +36,7 @@ public class CaptureManagerFrameGrabberSession {
private ISession session = null; private ISession session = null;
private int videoWidth = -1; private int videoWidth = -1;
private int videoHeight = -1; private int videoHeight = -1;
private int bytesPerRow = -1;
private int bufferSizeBytes = -1; private int bufferSizeBytes = -1;
private long lastFrameTimestamp = -1; private long lastFrameTimestamp = -1;
@ -126,12 +127,12 @@ public class CaptureManagerFrameGrabberSession {
final String videoFormat = MFVideoFormat_RGB32; final String videoFormat = MFVideoFormat_RGB32;
final int stride = CaptureManager.getInstance().getICaptureManagerControl().getStrideForBitmapInfoHeader( this.bytesPerRow = Math.abs(CaptureManager.getInstance().getICaptureManagerControl().getStrideForBitmapInfoHeader(
videoFormat, videoFormat,
videoWidth videoWidth
); ));
bufferSizeBytes = Math.abs(stride) * videoWidth; bufferSizeBytes = bytesPerRow * videoHeight;
directBuffer = ByteBuffer.allocateDirect(bufferSizeBytes); directBuffer = ByteBuffer.allocateDirect(bufferSizeBytes);
arrayByteBuffer = new byte[bufferSizeBytes]; arrayByteBuffer = new byte[bufferSizeBytes];
@ -139,7 +140,7 @@ public class CaptureManagerFrameGrabberSession {
bufferedImage = new BufferedImage(videoWidth, videoHeight, BufferedImage.TYPE_INT_BGR); bufferedImage = new BufferedImage(videoWidth, videoHeight, BufferedImage.TYPE_INT_BGR);
sampleModel = new ComponentSampleModel( sampleModel = new ComponentSampleModel(
DataBuffer.TYPE_BYTE, videoWidth, videoHeight, 4, videoWidth * 4, DataBuffer.TYPE_BYTE, videoWidth, videoHeight, 4, bytesPerRow,
new int[]{2, 1, 0} // Try {1,2,3}, {3,2,1}, {0,1,2} new int[]{2, 1, 0} // Try {1,2,3}, {3,2,1}, {0,1,2}
); );
@ -279,7 +280,7 @@ public class CaptureManagerFrameGrabberSession {
byteBuffer.mark(); byteBuffer.mark();
byteBuffer.position(0); byteBuffer.position(0);
pw.setPixels(0, 0, videoWidth, videoHeight, PixelFormat.getByteBgraPreInstance(), byteBuffer, 4 * videoWidth); pw.setPixels(0, 0, videoWidth, videoHeight, PixelFormat.getByteBgraPreInstance(), byteBuffer, bytesPerRow);
byteBuffer.reset(); byteBuffer.reset();
} }