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1 /* Copyright 2013 Google Inc. All Rights Reserved. | |
2 | |
3 Licensed under the Apache License, Version 2.0 (the "License"); | |
4 you may not use this file except in compliance with the License. | |
5 You may obtain a copy of the License at | |
6 | |
7 http://www.apache.org/licenses/LICENSE-2.0 | |
8 | |
9 Unless required by applicable law or agreed to in writing, software | |
10 distributed under the License is distributed on an "AS IS" BASIS, | |
11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 See the License for the specific language governing permissions and | |
13 limitations under the License. | |
14 | |
15 API for Brotli decompression | |
16 */ | |
17 | |
18 #ifndef BROTLI_DEC_DECODE_H_ | |
19 #define BROTLI_DEC_DECODE_H_ | |
20 | |
21 #include "./streams.h" | |
22 #include "./types.h" | |
23 | |
24 #if defined(__cplusplus) || defined(c_plusplus) | |
25 extern "C" { | |
26 #endif | |
27 | |
28 /* Sets *decoded_size to the decompressed size of the given encoded stream. */ | |
29 /* This function only works if the encoded buffer has a single meta block, */ | |
30 /* or if it has two meta-blocks, where the first is uncompressed and the */ | |
31 /* second is empty. */ | |
32 /* Returns 1 on success, 0 on failure. */ | |
33 int BrotliDecompressedSize(size_t encoded_size, | |
34 const uint8_t* encoded_buffer, | |
35 size_t* decoded_size); | |
36 | |
37 /* Decompresses the data in encoded_buffer into decoded_buffer, and sets */ | |
38 /* *decoded_size to the decompressed length. */ | |
39 /* Returns 0 if there was either a bit stream error or memory allocation */ | |
40 /* error, and 1 otherwise. */ | |
41 /* If decoded size is zero, returns 1 and keeps decoded_buffer unchanged. */ | |
42 int BrotliDecompressBuffer(size_t encoded_size, | |
43 const uint8_t* encoded_buffer, | |
44 size_t* decoded_size, | |
45 uint8_t* decoded_buffer); | |
46 | |
47 /* Same as above, but uses the specified input and output callbacks instead */ | |
48 /* of reading from and writing to pre-allocated memory buffers. */ | |
49 int BrotliDecompress(BrotliInput input, BrotliOutput output); | |
50 | |
51 #if defined(__cplusplus) || defined(c_plusplus) | |
52 } /* extern "C" */ | |
53 #endif | |
54 | |
55 #endif /* BROTLI_DEC_DECODE_H_ */ | |
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