On 09/24/2010 07:34 PM, Mathieu Bouchard wrote:
On Fri, 24 Sep 2010, Matteo Sisti Sette wrote:
On 09/24/2010 02:01 PM, Alexandre Castonguay wrote:
Hi,
Did you try photo jpeg?
Isn't it the same as mjpeg?
No, but if you set the full frames ratio to 1:1, it will become almost
the same (or exactly, I don't know). But the point of mjpeg (Motion
JPEG) formats is to have a ration of full-frames different from 1:1,
because all that Motion JPEG can do and Photo JPEG can't do is in the
non-full frames (i-frames).
(guess you mean p-frames and b-frames here)
I thought that m-jpeg was just jpeg applied to each frame independently
i.e. all frames were I-frames (I had read that in wikipedia).
And I thought that was why, when I click "configure" in Avidemux for the
Mjpeg codec, the only parameter I can change is "quality" and there is
no control of anything related to motion.
So if there actually is inter-frame compression and avidemux doesn't
expose any parameter for it, it means that when I use mjpeg it may
actually be creating p-frames and I have no way of knowing let alone
controlling it, right?
So is there some photo jpeg codec I can get for ubuntu that I could use
in Avidemux? (or in any other similar tool that you may suggest)?
thanks
m.
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