[Live-devel] 答复: ì?‘` : use livemedia transport mpeg4streame problem

[杨志祥]

thank you help.
I find my encode frame rate no fix.frame rate often change.so,my devicesource class "fDurationInMicroseconds" no right set.
when i set "fDurationInMicroseconds" is 1000000/25,because encode frame rate often change,so,my deliverFrame() possisble no can deliver new or right frame.to make of vlc player is no good.
 please tell me how fix the problem? i think my encode is wrong,yes?
 
 
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From: live-devel-bounces at ns.live555.com 代表 Ross Finlayson
Sent: 2010-11-26 (星期五) 18:12
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] ì?‘` : use livemedia transport mpeg4streame problem



	thanks you answer.
	1?Ai alreday use ""MPEG4VideoStreamDiscreteFramer" by ownserverseesion.
	2?AI test my devicesource class.when i set "fDurationInMicroseconds=0" or not set it.then use vlcplayer is very bad. if set
	fDurationInMicroseconds=1000000/25,then vlc player result better than "fDurationInMicroseconds=0". why?


I don't know (because this relates to your own, custom code) - but it appears that your input source class is not working properly.  It should be delivering a frame of data only when a new frame becomes available (from your encoder).  The fact that your code is not working properly when "fDurationInMicroseconds" is 0 suggests that it is not doing this.  Instead, it might be delivering the same frame data more than once - which is wrong.

However, because this is your own code, I'm not going to be able to help you any more with this.



	 3?AI dont know 'where "frame_rate" is the stream's frame rate in frames-per-second'. it not 25 or 30?? if no,i how to get frame_rate value?


I don't know - again, because this relates to your own custom environment.  But presumably you have some way of knowing the rate at which your encoder generates video frames...
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/