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#1 Posted : Friday, September 17, 2010 4:57:44 PM(UTC)
JoeWright

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Hi. Do all the LeadTools demultiplexers support frame accurate seeking, forwards and backwards?

Thanks, Joe
 

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#2 Posted : Sunday, September 19, 2010 4:48:59 AM(UTC)

Basel  
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Joe,
Seeking depends on both the demux and the video decoder used, so it's not possible to guarantee this with all videos and all codecs. Keep in mind that our demultiplexers can work with different codecs, even those from other vendors.
If you're using our toolkit, you can check seeking support using the ltmmPlayCtrl.CheckSeekingCapabilities() method.
 
#3 Posted : Sunday, September 19, 2010 11:46:07 PM(UTC)
JoeWright

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Ah OK thanks. What about with the LeadTools codecs, are they all frame accurate (if used with LT demuxers)?

Joe
 
#4 Posted : Monday, September 20, 2010 4:38:30 AM(UTC)

Basel  
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Joe,
For intera-frame compression formats such as MCMP and MCMW, the answer is yes. Our demultiplexers and codecs have support for seeking and frame stepping.

However, with inter-frame compressors, it is not possible to decode a non-key frame unless the previous frames are decoded first, so frame-accurate seeking might not be always possible.

So LEADTOOLS Codecs support frame seeking, but you can always check using CheckSeekingCapabilities because of inter-frame compressors.

 
#5 Posted : Monday, September 20, 2010 4:24:42 PM(UTC)
JoeWright

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Thanks Basel
 
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