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43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
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width=240
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height=240
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import webcam
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import time
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cam = webcam.init("/dev/video0") # Initialize webcam with device path
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memview = webcam.capture_frame(cam) # Returns memoryview
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time.sleep_ms(1000)
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static_bytes_obj = bytes(memview)
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image = lv.image(lv.screen_active())
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image.align(lv.ALIGN.LEFT_MID, 0, 0)
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image.set_rotation(900)
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# Create image descriptor once
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image_dsc = lv.image_dsc_t({
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"header": {
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"magic": lv.IMAGE_HEADER_MAGIC,
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"w": width,
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"h": height,
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"stride": width ,
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"cf": lv.COLOR_FORMAT.L8
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},
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'data_size': width * height,
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'data': static_bytes_obj # Will be updated per frame
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})
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image.set_src(image_dsc)
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for i in range(300):
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print(f"iteration {i}")
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webcam.recapture_frame(cam) #refresh memview
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bytes_obj = bytes(memview)
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#print(f"got bytes: {len(bytes_obj)}")
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#image_dsc.data = static_bytes_obj
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image_dsc.data = bytes_obj
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#image.set_src(image_dsc)
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image.invalidate()
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time.sleep_ms(10) # seems to need more than 0 or 1 ms
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print("cleanup")
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webcam.deinit(cam) # Deinitializes webcam
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