Wrong Picture Size RAW

[emence]

Hello!

When I request a preview picture for 80x60 in RAW I consistently get the correct picture-size of 4800 bytes. This works up to 160x120 without any problems.
At a resolution of 320x240 the returned picture-size is only 11520 bytes instead of 76800 and I only receive 76445 bytes.

Since the bytes that indicate the pictureSize are consisten and easy to find (AA,0A,02,b1,b2,b3) and the calculation works i can't see where the problem might be.

Example at 320x240 - Serial buffer being: 170, 10, 2, 0, 44, 1
[HTML]
for (int i = 0; i < 200; i++){ Thread.Sleep(1); if (bufferLength == 12) { pictureSize = (UInt16)(serialBuffer[5]

[emence]

code again....

for (int i = 0; i < 200; i++){ Thread.Sleep(1); if (bufferLength == 12) { pictureSize = (UInt16)(serialBuffer[5]

[ESPsupport]

You are almost certainly overrunning your comms input buffer.

You should be able to check for it to prove that's what's going on.

Perhaps try using a second level comms buffer.

[emence]

You are almost certainly overrunning your comms input buffer.

You should be able to check for it to prove that's what's going on.

Perhaps try using a second level comms buffer

This explains why i miss some bytes but it doesn't explain the wrong picture size?
What are the reasons the camera would send me the wrong size.
@RAW 8bit Grayscale up to 160x120 everything works fine. every resolution above returns a wrong picture size.

[ESPsupport]

Um, yeah, in that case shouldn't your code be more like

pictureSize = (UInt32)(serialBuffer[5]

[emence]

Exactly that's what my code should be!
uint16 just was too small.

It will always be the programmer making the mistakes

Thanks for your time!