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FLV artifact? 88 Responses
Last post: 6 months, 3 weeks ago | Thread started: Apr 25, 08, 5:47 p.m.
- daveFelton
I have an FLV, rendered out of after effects CS3. For some reason, the first frame of the FLV flashes a red artifact, the size of the video, then it disappears and the video plays normally.
What the hell is causing this and how do I fix it? I found this snippet on one of Adobe's page listing known and fixed bugs of the new flash player:
Alpha channel rendering issue when rendering video containing an alpha channel, followed by another asset on the same stream without an alpha channel. (183860)
According to my browswer and Adobe's site, I'm running the most recent flash player. I get the issue across all browsers. I'm on Mac OSX 10.4
Help me or shoot me in the face, please.
- Apr 25, 08, 5:47 p.m. – Permalink
- daveFelton
Also, I tried rendering out of AE as a quicktime MOV, with Animation codec, then use's Flash's standalone FLV encoder. Same results everytime.
I do not see the red artifact when viewing the swf in the flash environment, just when viewing it via the browswer.
The SWF is embedded into the html using SwfObject.
Hope this info helps.
- Dog-earApr 25, 08, 5:48 p.m. – Permalink
- daveFelton
I tried hiding the frame, in Flash, but it still happens. Also tried adjusting the timeline in AE, and had no luck.
But, for some reason, I re-rendered again in the same exact way I was doing it before, and it miraculously worked. I'm going to leave well enough alone and just count the issue "fixed".
- Dog-earApr 25, 08, 6:19 p.m. – Permalink
- daveFelton
OKAY the problem is back, bumping this to see if anyone has any ideas...please help
- Dog-earApr 29, 08, 3:36 p.m. – Permalink
- daveFelton
Haven't tried Perian, I didn't know it was an encoder? I just thought it was a plugin to view FLVs with quicktime, thats all I've used it for.
As for the issue, I was able to get it to work in one instance by putting a black shape, the exact size of the video, behind the flv's first few frames. Setting this box to 1% transparency makes the red artifact (which has been switching colors by the way!) go away. There is one more instance where it still happens, and that treatment isn't working yet....
its easily the most frustrating thing I've come across in a while.
- Dog-earApr 29, 08, 4:18 p.m. – Permalink
- fyoucher1
Some debugging tips:
- Maybe try viewing the SWF/FLV without SWF Object, to see if its SWF Object that might be causing it.
- Drag the SWF into a browser window and see if it shows the artificting.
- Open the standalone Flash Player and see if it happens.
- Try exporting a QT out of AE "uncompressed", meaning choose "None" instead of "Animation. Take out the alpha channel, and then re-import it into Flash Video Encoder. See what happens.
- Try embedding the FLV into the FLA, inside of a movieclip and see what happens.Basically, just keep narrowing down things until u can try and isolate the issue.
- Dog-earApr 29, 08, 4:38 p.m. – Permalink
