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Fix that the max file size encoding need to increase the passes used by libwebp, we choose to use 6 from cwebp command line

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DreamPiggy 2020-04-07 19:45:33 +08:00
parent ee7665e2b0
commit 6a0f5dc73c
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SDWebImageWebPCoder/Classes/SDImageWebPCoder.m
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@ -781,6 +781,7 @@ static CGSize SDCalculateThumbnailSize(CGSize fullSize, BOOL preserveAspectRatio
} }
config.target_size = (int)fileSize; // Max filesize for output, 0 means use quality instead config.target_size = (int)fileSize; // Max filesize for output, 0 means use quality instead
config.pass = fileSize > 0 ? 6 : 1; // Use 6 passes for file size limited encoding, which is the default value of `cwebp` command line
config.thread_level = 1; // Thread encoding for fast config.thread_level = 1; // Thread encoding for fast
config.lossless = 0; // Disable lossless encoding (If we need, can add new Encoding Options in future version) config.lossless = 0; // Disable lossless encoding (If we need, can add new Encoding Options in future version)
picture.use_argb = config.lossless; // Lossy encoding use YUV for internel bitstream picture.use_argb = config.lossless; // Lossy encoding use YUV for internel bitstream