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#22 Use BytesIO for camera capture

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James Hodgson
2022-10-07 14:48:39 +01:00
parent 6d211eae8c
commit 9fc01aeea8
1 changed files with 8 additions and 2 deletions
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10
src/picam/picam1.py
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@@ -1,5 +1,6 @@
from picam import PiCam from src.picam import PiCam
from io import BytesIO
from picamera import PiCamera from picamera import PiCamera
class PiCam1(PiCam): class PiCam1(PiCam):
@@ -36,12 +37,17 @@ class PiCam1(PiCam):
def capture(self, preview: bool = False) -> bytes: def capture(self, preview: bool = False) -> bytes:
# Bytes to hold output buffer # Bytes to hold output buffer
out = bytes() out = bytes()
bytes_stream = BytesIO()
if not preview: if not preview:
# If preview we'll already have the right resolution # If preview we'll already have the right resolution
self.set_camera_resolution(self.capture_resolution) self.set_camera_resolution(self.capture_resolution)
self.camera.capture(out, format='rgb', use_video_port=preview) self.camera.capture(bytes_stream, format='rgb', use_video_port=preview)
bytes_stream.seek(0)
bytes_stream.readinto(out)
bytes_stream.close()
if not preview: if not preview:
# If preview we'll already have the right resolution # If preview we'll already have the right resolution