Zoltan Szabadka
1571db36a9
This commit contains a batch of changes that were made to the Brotli compression algorithm in the last three weeks. Most important changes: * Added UTF8 context model for good text compression. * Simplified context modeling by having only 4 context modes. * Per-block context mode selection. * Faster backward copying and bit reading functions. * More efficient histogram coding. * Streaming support for the decoder and encoder.
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// API for Brotli decompression
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#ifndef BROTLI_DEC_DECODE_H_
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#define BROTLI_DEC_DECODE_H_
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#include "./streams.h"
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#include "./types.h"
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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// Sets *decoded_size to the decompressed size of the given encoded stream.
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// Returns 1 on success, 0 on failure.
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int BrotliDecompressedSize(size_t encoded_size,
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const uint8_t* encoded_buffer,
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size_t* decoded_size);
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// Decompresses the data in encoded_buffer into decoded_buffer, and sets
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// *decoded_size to the decompressed length.
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// Returns 0 if there was either a bit stream error or memory allocation error,
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// and 1 otherwise.
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// If decoded size is zero, returns 1 and keeps decoded_buffer unchanged.
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int BrotliDecompressBuffer(size_t encoded_size,
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const uint8_t* encoded_buffer,
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size_t* decoded_size,
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uint8_t* decoded_buffer);
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// Same as above, but uses the specified input and output callbacks instead of
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// reading from and writing to pre-allocated memory buffers.
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int BrotliDecompress(BrotliInput input, BrotliOutput output);
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#if defined(__cplusplus) || defined(c_plusplus)
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} // extern "C"
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#endif
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#endif // BROTLI_DEC_DECODE_H_
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