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michaelmob / WebMCam

Capture frames in real-time and save them as WebM.
GNU General Public License v3.0
284 stars 27 forks source link

Color artifacts when playing back webms #29

Closed Clavus closed 8 years ago

Clavus commented 8 years ago

Don't know if this is an issue with the WebMCam or the playback applications, but some of the recordings I made have artifacts that look like this: http://i.imgur.com/wOJNVME.png

.. but only when played back in desktop media players like VLC, Windows Media Player or Media Player Classic (the artifacts are green in the last two). When playing back in a browser (Chrome / Firefox), there are no artifacts.

This doesn't happen with all recordings, some play back just fine in all applications. Can't quite figure out what causes it, but it tends to appear when recording at higher framerates or at higher resolutions with WebMCam. Maybe a codec issue on my end?

michaelmob commented 8 years ago

I would say look in the frame viewer after you capture a shot and check for the artifacts in there. If there are no artifacts in the viewer, drag it into VLC/WMP/MPC and see if the artifacts are now there. No artifacts in the viewer means it's either FFmpeg's encoder or the player (it's probably the player).

Personally, on my computer I cannot even play a webm file in VLC and only used a browser to test.

Clavus commented 8 years ago

Yeah, I'm thinking it might be something with the K-Lite codec pack that I've got installed. Thanks for the quick response!

michaelmob commented 8 years ago

Good luck!