HD shooting and compressing « Videomaker Community Forums

videofiend138
Member

I recently ran into an issue with shooting and HD video. I used soft lighting for the talking head, and compressed it as and .mov file. When the video was distributed to be compressed as and .flv the editor was having issues with the video. He mentioned that the reason for the bad compression was because I had soft lighting throught the video. Is that true? If so, what are some tips for lighting talent for web? Thanks

Posted 2 years ago #
Ken
Member

Hmmm...... I'm a bit skeptical of that explanation. True, soft lighting creates gradations of light on your subject, increasing the number of color shades to be rendered. But the typical scene has so much going on in it, that it seems to me that the extra shades created by soft lighting woud be a drop in the bucket compared to the already existing complexity of the scene. On the other hand, the method of compression could be the culprit. Could you give your editor an uncompressed file from your original footage, and let him experiment with that?

Ken

Posted 2 years ago #
videofiend138
Member

Will do, thanks for the quick response!

Posted 2 years ago #
robGRAUERT
Member

it's not the lighting that's the problem. it's the compression technique.

tell your editor:

In the compressing options there should be a parameter to set keyframes. For a talking head, you can get away with keyframes every 30 frames. If your video contains fast motion, you may want a keyframe every 5-15 frames depending on how fast the motion is. Slower motion in the video means keyframes can be further apart, which is why you can get away with a keyframe every 30 frames with talking heads.

Rob Grauert, Jr
http://www.robgrauert.com
http://command-r.tumblr.com

Posted 2 years ago #
videofiend138
Member

Thanks, in order to be streamed through the web he can't go larger than 500 bit rate. I'm sure adding key frames will minimize file size and will also help compression.

Posted 2 years ago #