Binary file formats
WebP VP8X decoder
Read extended WebP canvas dimensions and feature flags.
Your inputs
Start with an exampleYour result
Example resultAa — A small example of your colors.
How it works
Read width-minus-one and height-minus-one as 24-bit little-endian integers. Add one to each; decode the feature flag byte.
The example specifies a 1920×1080 canvas with the alpha flag set.
Limits
Paste the 10-byte VP8X payload, not its chunk header. This does not validate the rest of a WebP file or prove that flagged chunks exist.