Low Framerate on SS

[Diego Fraga]

Hi all I´m almost new with Wowza.
We are having some issues with VOD (content that is played via Wowza server
The content is Smooth Streaming and is encoded using MEE4 with differents files for different bitrates (as BigBuckBunny from MS)
The content is played whitout any problem except that allways I get between 12-14 fps when is played.

Do you have any clue of what is going on with this ?

Thanks

[rrlanham]

Not sure, but here are some things to look at:

Our encoding presets from Expression 4:
http://www.wowzamedia.com/forums/con...ideo-on-Demand

Test using these sets:

Basline 3 profile Encoded for IPhone
http://www.wowzamedia.com/_h264/bigb...iphone_300.mp4
http://www.wowzamedia.com/_h264/bigb...iphone_400.mp4
http://www.wowzamedia.com/_h264/bigb...iphone_600.mp4

Main Profile
http://www.wowzamedia.com/_h264/bigbuckbunny_450.mp4
http://www.wowzamedia.com/_h264/bigbuckbunny_750.mp4
http://www.wowzamedia.com/_h264/bigbuckbunny_1100.mp4

And test locally and over the network.

And test with the Wowza SimpleVideoStreaming Silverlight example, look in the clientSilverlight folder

Richard

[Diego Fraga]

Thanks Richard, I´ll check and I´ll let you know.

[Diego Fraga]

Richard ´ve change the encoding options on Ms expression encoder 4.. I´ve setted b-frames =0 this was the only way to get between 20/30 fps on the vod content.
Which kind of configurarion (of b-frames) is supported by Wowza ?

Thanks.-

[rrlanham]

Wowza supports B-frames, but many players have problems with multiple or complex B-frames, and they are not really needed.

Richard

[Diego Fraga]

Wowza supports B-frames, but many players have problems with multiple or complex B-frames, and they are not really needed.

Richard

Thanks !

[Diego Fraga]

Thanks !

Just for the records which player do you agree to use with silverlight content (ismc,ismv,isma files)

[rrlanham]

We have Silverlight example players in the SimpleVideoStreaming and LiveVideoStreaming examples. Otherwise we recommend the Expression 4 templates,
http://www.wowzamedia.com/forums/con...tes-with-Wowza

And take a look the SMF player:
smf.codeplex.com/releases/view/63434

Richard

[rrlanham]

Also, the ISMV and ISM files should work with Wowza and sanjose, cupertino and smooth streaming, in players and devices that support those type streams. The ISMV files would have to be baseline 3 for many iOS devices.

Richard

[Diego Fraga]

Richard,
B frames are usefull for encoding a video with more quality and less bitrate. This option is very usefull to encode HD movies. If we don´t use b-frames the encoding times are taking 3 times more. What we really don't understand is if Wowza is incompatible with B-Frames and will stiill not be on the future, or it's just an issue that will be fixed in a future release. If this is the case, when.

Diego.-