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Tighten up allocation excaption catching

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This commit is contained in:
Casten Riepling 2025-04-12 20:52:39 +00:00
parent 3357fefbb0
commit b49083177b
1 changed files with 6 additions and 6 deletions
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12
PiCowbell_Camera_Demos/JPEG_Capture/code.py
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@ -78,10 +78,10 @@ def open_next_image():
cam.colorspace = adafruit_ov5640.OV5640_COLOR_JPEG cam.colorspace = adafruit_ov5640.OV5640_COLOR_JPEG
# Different platforms have different amounts of memory available. # Different platforms have different amounts of memory available.
# Typically a Pico 2 can handle quality = 2 and a Pico can handle quality = 5. # Typically a Pico 2 can handle quality = 2 and a Pico can handle quality = 5.
# Rather than detect and select sizes, let's try to detect the best dynamically # Rather than detect and select sizes, let's try to detect the best dynamically
# for broader platform support. # for broader platform support.
# Start with the highest quality setting and attempt to allocate a buffer # Start with the highest quality setting and attempt to allocate a buffer
# of the necessary size. If it fails, try the next lowest. # of the necessary size. If it fails, try the next lowest.
b = None b = None
for quality in range(2,55): #valid range is 2 to 54 inclusive for quality in range(2,55): #valid range is 2 to 54 inclusive
@ -91,12 +91,12 @@ for quality in range(2,55): #valid range is 2 to 54 inclusive
b = bytearray(cam.capture_buffer_size) b = bytearray(cam.capture_buffer_size)
print(f"Quality {quality} successfully selected.") print(f"Quality {quality} successfully selected.")
break break
except Exception: except MemoryError:
print(f"Quality {quality} was too big. Trying next lowest.") print(f"Quality {quality} was too big. Trying next lowest.")
if b is None: if b is None:
print("There wasn't enough system memory to allocate the lowest quality buffer.") print("There wasn't enough system memory to allocate the lowest quality buffer.")
jpeg = cam.capture(b) jpeg = cam.capture(b)
while True: while True: