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Re: Seeking MJPEG2000 in OGG jumps to end? Started by kdixon at 06-30-2009 13:27. Topic has 3 replies. LEAD Support Fo... » Enduser » Multimedia Code... » Re: Seeking MJPEG2000 in OGG jumps to end?

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06-30-2009, 13:27 kdixon Joined on 06-05-2009 Posts 16 Seeking MJPEG2000 in OGG jumps to end? I have a recording of some MJPEG2000 (LEAD MJ2K Encoder) at 20 frames per Minute, which I have multiplexed into an OGG container, (LEAD OGG Multiplexer). When I am playing back the recording, if I do not seek precisely to where a frame would appear, the graph completes playing suddenly and jumps to the end. I see this behavior in GraphEdit as well as my own Media Player. If I re-mux the same MJ2K stream into an AVI container seeking works properly. I get the same behavior whether I have the "Always Search to Key Frame"  checkbox checked on the OGG Demux or not.    Report

07-01-2009, 10:45 Basel Joined on 03-24-2009 Posts 411 Re: Seeking MJPEG2000 in OGG jumps to end? Attachment: Seeking.zip I created a video-only OGG file that contains MJ2K compressed video. I set the source frame rate to 0.333 frames per second (equivalent to 20 frames per minute). When I play it back into Windows Media Player and seek using the track bar, I do not notice the problem you're facing. I'm attaching the resulting Video. Can you give more details on how to reproduce the issue here? Basel Abdel-Aziz LEAD Technical Support    Report

07-01-2009, 11:43 kdixon Joined on 06-05-2009 Posts 16 Re: Seeking MJPEG2000 in OGG jumps to end? Attachment: 150117 test.zip Thank you. The video you attached does not exhibit this problem. Please try my test video which *does* have this problem. If you let it play to about half-way, then seek to about 1/4, it will jump to the end. I am using GraphEdit for playback, because Windows Media Player cannot render the ogg files on my machine.    Report

07-02-2009, 5:14 Basel Joined on 03-24-2009 Posts 411 Re: Seeking MJPEG2000 in OGG jumps to end? The video contains 4 frames. I tried the steps in GraphEdit and here's what I found: 1. It plays the 4 frames, but the exact moment it reaches the fourth frame, the graph stops and re-winds to the beginning. 2. I tried to see the jump effect you mentioned in GraphEdit but couldn't, so I would like to investigate further. Please send an email to support@leadtools.com and mention this forum post. If you have a LEADTOOLS serial number, please include it in the email and do NOT post it here. Also, if you have other small files that show the problem, send them in that email in a ZIP or RAR file. Basel Abdel-Aziz LEAD Technical Support    Report

LEAD Support Fo... » Enduser » Multimedia Code... » Re: Seeking MJPEG2000 in OGG jumps to end?

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