Alex Tarter wrote:
I’m having a few problems with the TI supplied JPEG codec. For some reason if I create a picture with a resolution of 320 x 240 with a quantization value of 20 the stream produced is fine and can be decoded using VLC with no problems. But if I change the resolution of the Q value then I get the following strange behaviour (which is duplicated exactly on two different machines running Windows & Mac OSX) when I try and decode the stream. Every third frame or so is decoded wrong. The right hand side (around 10% of the total width wide) is displayed on the left hand side – ie if the picture was of rows of the numbers 0123456789 then what would be displayed is 9012345678. Its as if someone has torn off the righthand side and stuck it on the left. As a result the picture keeps jumping, plus every so often the image takes on a red or green hue.
If anyone has any thoughts they would be most appreciated this is driving me nuts. I don’t want to always have to use 320x240 at a Quantization level of 20.
Could it be that this is a "demo" codec only that can be used only with a fixed size and produces a "watermarked" image otherwise?
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