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Re-use CreateFrameCanvas() in samples/gif-viewer.py #1556

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Re-use CreateFrameCanvas() in samples/gif-viewer.py #1556

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11 changes: 6 additions & 5 deletions bindings/python/samples/gif-viewer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,16 +30,16 @@
matrix = RGBMatrix(options = options)

# Preprocess the gifs frames into canvases to improve playback performance
canvases = []
frames = []
canvas = matrix.CreateFrameCanvas()
print("Preprocessing gif, this may take a moment depending on the size of the gif...")
for frame_index in range(0, num_frames):
gif.seek(frame_index)
# must copy the frame out of the gif, since thumbnail() modifies the image in-place
frame = gif.copy()
frame.thumbnail((matrix.width, matrix.height), Image.ANTIALIAS)
canvas = matrix.CreateFrameCanvas()
canvas.SetImage(frame.convert("RGB"))
canvases.append(canvas)

frames.append(frame.convert("RGB"))
# Close the gif file to save memory now that we have copied out all of the frames
gif.close()

Expand All @@ -51,7 +51,8 @@
# Infinitely loop through the gif
cur_frame = 0
while(True):
matrix.SwapOnVSync(canvases[cur_frame], framerate_fraction=10)
canvas.SetImage(frames[cur_frame])
matrix.SwapOnVSync(canvas, framerate_fraction=10)
if cur_frame == num_frames - 1:
cur_frame = 0
else:
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