Page Speed Optimization Libraries
1.7.30.4
|
00001 /* 00002 * Copyright 2011 Google Inc. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http:///www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00018 00019 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_WEBP_OPTIMIZER_H_ 00020 #define NET_INSTAWEB_REWRITER_PUBLIC_WEBP_OPTIMIZER_H_ 00021 00022 #include "net/instaweb/util/public/string.h" 00023 00024 namespace net_instaweb { 00025 00026 class MessageHandler; 00027 00029 typedef bool (*WebpProgressHook)(int percent, void* user_data); 00030 00033 const int kNoQualityGiven = -1; 00034 00039 bool OptimizeWebp(const GoogleString& original_jpeg, int configured_quality, 00040 WebpProgressHook progress_hook, void* progress_hook_data, 00041 GoogleString* compressed_webp, 00042 MessageHandler* message_handler); 00043 00047 bool ReduceWebpImageQuality(const GoogleString& original_webp, 00048 int quality, GoogleString* compressed_webp); 00049 00050 } 00051 00052 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_WEBP_OPTIMIZER_H_