add -near_lossless [0..100] experimental option

This compresses the uimage using lossless compression and controlable
decimating pre-process.
Code is under WEBP_EXPERIMENTAL_FEATURE while it's being experimented with.

Change-Id: I8b7f4cfcc3c6afc52a556102842bdbb045ed5ee8
This commit is contained in:
skal
2014-08-05 19:14:57 +02:00
parent 0524d9e5e8
commit b5a36cc9ad
11 changed files with 171 additions and 1 deletions

View File

@ -131,7 +131,10 @@ struct WebPConfig {
int thread_level; // If non-zero, try and use multi-threaded encoding.
int low_memory; // If set, reduce memory usage (but increase CPU use).
uint32_t pad[5]; // padding for later use
int near_lossless; // Near lossless encoding [0 = off(default) .. 100].
// This feature is experimental.
uint32_t pad[4]; // padding for later use
};
// Enumerate some predefined settings for WebPConfig, depending on the type