23 int WebPConfigInitInternal(WebPConfig* const config,  in WebPConfigInitInternal()  argument
28   if (config == NULL) return 0;  in WebPConfigInitInternal()
30   config->quality = quality;  in WebPConfigInitInternal()
31   config->target_size = 0;  in WebPConfigInitInternal()
32   config->target_PSNR = 0.;  in WebPConfigInitInternal()
33   config->method = 4;  in WebPConfigInitInternal()
34   config->sns_strength = 50;  in WebPConfigInitInternal()
35   config->filter_strength = 20;   // default: light filtering  in WebPConfigInitInternal()
36   config->filter_sharpness = 0;  in WebPConfigInitInternal()
37   config->filter_type = 0;        // default: simple  in WebPConfigInitInternal()
38   config->partitions = 0;  in WebPConfigInitInternal()
39   config->segments = 4;  in WebPConfigInitInternal()
40   config->pass = 1;  in WebPConfigInitInternal()
41   config->show_compressed = 0;  in WebPConfigInitInternal()
42   config->preprocessing = 0;  in WebPConfigInitInternal()
43   config->autofilter = 0;  in WebPConfigInitInternal()
44   config->alpha_compression = 0;  in WebPConfigInitInternal()
49       config->sns_strength = 80;  in WebPConfigInitInternal()
50       config->filter_sharpness = 4;  in WebPConfigInitInternal()
51       config->filter_strength = 35;  in WebPConfigInitInternal()
54       config->sns_strength = 80;  in WebPConfigInitInternal()
55       config->filter_sharpness = 3;  in WebPConfigInitInternal()
56       config->filter_strength = 30;  in WebPConfigInitInternal()
59       config->sns_strength = 25;  in WebPConfigInitInternal()
60       config->filter_sharpness = 6;  in WebPConfigInitInternal()
61       config->filter_strength = 10;  in WebPConfigInitInternal()
64       config->sns_strength = 0;  in WebPConfigInitInternal()
65       config->filter_strength = 0;   // disable filtering to retain sharpness  in WebPConfigInitInternal()
68       config->sns_strength = 0;  in WebPConfigInitInternal()
69       config->filter_strength = 0;   // disable filtering to retain sharpness  in WebPConfigInitInternal()
70       config->segments = 2;  in WebPConfigInitInternal()
76   return WebPValidateConfig(config);  in WebPConfigInitInternal()
79 int WebPValidateConfig(const WebPConfig* const config) {  in WebPValidateConfig()  argument
80   if (config == NULL) return 0;  in WebPValidateConfig()
81   if (config->quality < 0 || config->quality > 100)  in WebPValidateConfig()
83   if (config->target_size < 0)  in WebPValidateConfig()
85   if (config->target_PSNR < 0)  in WebPValidateConfig()
87   if (config->method < 0 || config->method > 6)  in WebPValidateConfig()
89   if (config->segments < 1 || config->segments > 4)  in WebPValidateConfig()
91   if (config->sns_strength < 0 || config->sns_strength > 100)  in WebPValidateConfig()
93   if (config->filter_strength < 0 || config->filter_strength > 100)  in WebPValidateConfig()
95   if (config->filter_sharpness < 0 || config->filter_sharpness > 7)  in WebPValidateConfig()
97   if (config->filter_type < 0 || config->filter_type > 1)  in WebPValidateConfig()
99   if (config->autofilter < 0 || config->autofilter > 1)  in WebPValidateConfig()
101   if (config->pass < 1 || config->pass > 10)  in WebPValidateConfig()
103   if (config->show_compressed < 0 || config->show_compressed > 1)  in WebPValidateConfig()
105   if (config->preprocessing < 0 || config->preprocessing > 1)  in WebPValidateConfig()
107   if (config->partitions < 0 || config->partitions > 3)  in WebPValidateConfig()
109   if (config->alpha_compression < 0)  in WebPValidateConfig()