dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-07-15 21:39:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

Improved near-lossless mode.

Browse Source 
Compared to previous mode it gives another 10-30% improvement in compression keeping comparable PSNR on corresponding quality settings.

Still protected by the WEBP_EXPERIMENTAL_FEATURES flag.

Change-Id: I4821815b9a508f4f38c98821acaddb74c73c60ac
This commit is contained in:
Pascal Massimino
2014-10-15 14:28:19 +02:00
committed by Gerrit Code Review
parent 0ce27e715e
commit 6c6736816c
4 changed files with 184 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/enc/webpenc.c
View File

@ -368,11 +368,6 @@ int WebPEncode(const WebPConfig* config, WebPPicture* pic) {
}
ok &= DeleteVP8Encoder(enc); // must always be called, even if !ok
} else {
if (config->near_lossless > 0 &&
!VP8ApplyNearLossless(pic->width, pic->height,
pic->argb, config->near_lossless)) {
return 0;
}
// Make sure we have ARGB samples.
if (pic->argb == NULL && !WebPPictureYUVAToARGB(pic)) {
return 0;