Home | History | Annotate | Download | only in stagefright
      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef UTILS_H_
     18 
     19 #define UTILS_H_
     20 
     21 #include <stdint.h>
     22 
     23 namespace android {
     24 
     25 #define FOURCC(c1, c2, c3, c4) \
     26     (c1 << 24 | c2 << 16 | c3 << 8 | c4)
     27 
     28 uint16_t U16_AT(const uint8_t *ptr);
     29 uint32_t U32_AT(const uint8_t *ptr);
     30 uint64_t U64_AT(const uint8_t *ptr);
     31 
     32 uint16_t U16LE_AT(const uint8_t *ptr);
     33 uint32_t U32LE_AT(const uint8_t *ptr);
     34 uint64_t U64LE_AT(const uint8_t *ptr);
     35 
     36 uint64_t ntoh64(uint64_t x);
     37 uint64_t hton64(uint64_t x);
     38 
     39 }  // namespace android
     40 
     41 #endif  // UTILS_H_
     42