How to determine type of FLV

[bluerattle]

I am working on a project where I am receiving FLV files from a client to integrate into a Flash application.

The FLV files should have transparency but they do not. I am guessing that the client encoded them (exported from After Effects) with the codec set to Sorenson Spark, rather than On2 VP6 -- which is what we need. So I want to verify this and see if that is the problem.

However, I haven't seen any tool in Flash that will report the codec of the existing FLV. Can someone tell me how this can be done, either in Flash or with a 3rd-party tool?

thanks,
BR

[atomic]

http://livedocs.adobe.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00001576.html

http://livedocs.adobe.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00003559.html

In both of the above you'll find videocodecid... Which apparently is A number that is the codec version that was used to encode the video.

Couldn't find a list of codecs with the id numbers, but once you find that out, you'd be in business...

[atomic]

Oh just found this...

http://www.devx.com/webdev/Article/31420/1954?pf=true

videocodecid Number Video codec ID number used in the FLV. (Sorenson H.263 =2, Screen Video =3, On2 VP6 = 4 and 5, Screen Video V2 = 6).

[bluerattle]

Thanks atomic, so I can use a little Actionscript to extract the codec ID.

Based on your info, I googled the following URL, which explains the distinction between the two On2 VP6 ID's (4 vs 5):

http://www.buraks.com/captionate/helpfile/e05.html

videocodecid (Number): Video codec ID used in the FLV (Captionate uses the first video tag for this value). Possible values are 2: Sorenson H.263, 3: Screen Video, 4: On2 VP6, 5: On2 VP6 with Transparency.

That helps me even more, to be able to tell if they turned on the On2 VP6 transparency option, as well as knowing the codec.

BR

[atomic]

Grrrrrrrrrrrreat! ;)