diff options
Diffstat (limited to 'drivers/webpold/utils/huffman_encode.h')
| -rw-r--r-- | drivers/webpold/utils/huffman_encode.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/drivers/webpold/utils/huffman_encode.h b/drivers/webpold/utils/huffman_encode.h deleted file mode 100644 index 7f4aedc102..0000000000 --- a/drivers/webpold/utils/huffman_encode.h +++ /dev/null @@ -1,47 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// This code is licensed under the same terms as WebM: -// Software License Agreement: http://www.webmproject.org/license/software/ -// Additional IP Rights Grant: http://www.webmproject.org/license/additional/ -// ----------------------------------------------------------------------------- -// -// Author: Jyrki Alakuijala (jyrki@google.com) -// -// Entropy encoding (Huffman) for webp lossless - -#ifndef WEBP_UTILS_HUFFMAN_ENCODE_H_ -#define WEBP_UTILS_HUFFMAN_ENCODE_H_ - -#include "../types.h" - -#if defined(__cplusplus) || defined(c_plusplus) -extern "C" { -#endif - -// Struct for holding the tree header in coded form. -typedef struct { - uint8_t code; // value (0..15) or escape code (16,17,18) - uint8_t extra_bits; // extra bits for escape codes -} HuffmanTreeToken; - -// Struct to represent the tree codes (depth and bits array). -typedef struct { - int num_symbols; // Number of symbols. - uint8_t* code_lengths; // Code lengths of the symbols. - uint16_t* codes; // Symbol Codes. -} HuffmanTreeCode; - -// Turn the Huffman tree into a token sequence. -// Returns the number of tokens used. -int VP8LCreateCompressedHuffmanTree(const HuffmanTreeCode* const tree, - HuffmanTreeToken* tokens, int max_tokens); - -// Create an optimized tree, and tokenize it. -int VP8LCreateHuffmanTree(int* const histogram, int tree_depth_limit, - HuffmanTreeCode* const tree); - -#if defined(__cplusplus) || defined(c_plusplus) -} -#endif - -#endif // WEBP_UTILS_HUFFMAN_ENCODE_H_ |