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Topic: copy video onto memory? (Read 424 times) |
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reinout wallis de vries
Guest
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copy video onto memory?
« on: Jun 14th, 2004, 8:17pm » |
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right now i use the follwing line to put a live videoimage on the canvas.
image(video, 10, 10);
from here i copy it to a canvas-memory where i do my thing.
i would like to copy it directly to this canvas-memory. is there a way to copy live-video to a memory?
greetz,
nout
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fjen
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Re: copy video onto memory?
« Reply #1 on: Jul 16th, 2004, 9:26pm » |
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you can copy the pixels (colors) like this:
for (int px=0; px < video.pixels.length; px++)
{
canvas_memory.pixels[px] = video.pixels[px];
}
just make sure video.pixels.length == canMem.pixels.length.
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narain
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Re: copy video onto memory?
« Reply #2 on: Jul 17th, 2004, 7:18am » |
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Of course, you want both width and height to match, otherwise the image will get garbled data.
However, as long as it's larger than the video, you can do this:
Code:for (int x = 0; x < video.width; x++) {
for (int y = 0; y < video.height; y++) {
canvas[x + y*canvas.width] = video[x + y*video.width];
}
} |
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