VP8 specific options¶
vp8_quality¶
This sets the quality parameter for libvpx. The default value is good. The options are:
| Quality | Description |
|---|---|
| realtime | Fastest encoding, but less quality |
| good | Default encoding |
| best | Very slow encoding but better quality |
vp8_yuv420p¶
This forces it to translate the video to YUV420 before encoding, this is required for most video players so it is true by default.
vp8_crf¶
This sets the constant rate factor. The CRF controls the output quality. The range is 4-63.
The default value is 10