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Rockbox mail archiveSubject: Re: Video PauseRe: Video Pause
From: BlueChip <cs_bluechip_at_webtribe.net>
Date: Wed, 18 Feb 2004 19:29:49 +0000 > > > When we hit pause, the display shows the current "frame" - which is > > > essentially just a bunch of random dots - I appreciate why this happens > > > ...Would it possible during "pause" to loop through the frames currently > > > in RAM and thus generate a viewable frame ...I understand that it would > > > not be perfect, but it seems like a reasonable idea at a first look. > >The frames in RAM is actually a larger part, the time between two spinups. >But you're right, we could loop a few frames back and forth. This will then >always move back and forth also, may look very funny depending on the scene. My VCR does weird things if you pause it in certain places too - ie. two images shuddering one over the other. >I just haven't spent much effort on the paused mode, and doubt I will. Be >glad there is a pause at all... It's of no personal interest to me, it was just a thought I had - my mind wandering since my personal Rockbox projects are on hold for the moment. >One thing the pause does: It re-syncs the video, in case it has drifted away >from the audio (may happen after prolonged playback). For sure this works >only if your encoding was correct. cool - that's worth knowing >If the video frame rate was given wrong to >the command line tools, I can't help it. You need to upgrade to CrystalBall Version 3.7 to fix that :D > > This is just me, but it occurs to me that the best way would be to have > > an optional part of the file, that kinda... holds frames. > > > > Not having looked at the file format at all, I'm only stabbing in the > > dark here, but you could say "well, this slection of blitted frames > > produces this source frame", so that the image created by the eye > > doesn't move when those frames are looped. > >There is no part that represents a single frame, it's all a continuous flow. Can you tell which data "bit", in RAM, is sent to 0,0 on the screen - if so, whatever method you use to detect that can be used to calculate the StartOfFrame :) That is not to comment on the GOP idea, for which I do not _personally_ see the benefit here, but have no great gripes against it either. GOP -> a <shrugs> moment ;) _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2004-02-18 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |