// Copyright 2012 Google Inc. All Rights Reserved. // // Use of this source code is governed by a BSD-style license // that can be found in the COPYING file in the root of the source // tree. An additional intellectual property rights grant can be found // in the file PATENTS. All contributing project authors may // be found in the AUTHORS file in the root of the source tree. // ----------------------------------------------------------------------------- // // Internal header for constants related to WebP file format. // // Author: Urvang ([email protected]) #ifndef WEBP_WEBP_FORMAT_CONSTANTS_H_ #define WEBP_WEBP_FORMAT_CONSTANTS_H_ // Create fourcc of the chunk from the chunk tag characters. #define MKFOURCC(a, b, c, d) … // VP8 related constants. #define VP8_SIGNATURE … #define VP8_MAX_PARTITION0_SIZE … #define VP8_MAX_PARTITION_SIZE … #define VP8_FRAME_HEADER_SIZE … // VP8L related constants. #define VP8L_SIGNATURE_SIZE … #define VP8L_MAGIC_BYTE … #define VP8L_IMAGE_SIZE_BITS … // width and height. #define VP8L_VERSION_BITS … #define VP8L_VERSION … #define VP8L_FRAME_HEADER_SIZE … #define MAX_PALETTE_SIZE … #define MAX_CACHE_BITS … #define HUFFMAN_CODES_PER_META_CODE … #define ARGB_BLACK … #define DEFAULT_CODE_LENGTH … #define MAX_ALLOWED_CODE_LENGTH … #define NUM_LITERAL_CODES … #define NUM_LENGTH_CODES … #define NUM_DISTANCE_CODES … #define CODE_LENGTH_CODES … #define MIN_HUFFMAN_BITS … #define MAX_HUFFMAN_BITS … #define TRANSFORM_PRESENT … // to be read is a transform. #define NUM_TRANSFORMS … // in a bitstream. VP8LImageTransformType; // Alpha related constants. #define ALPHA_HEADER_LEN … #define ALPHA_NO_COMPRESSION … #define ALPHA_LOSSLESS_COMPRESSION … #define ALPHA_PREPROCESSED_LEVELS … // Mux related constants. #define TAG_SIZE … #define CHUNK_SIZE_BYTES … #define CHUNK_HEADER_SIZE … #define RIFF_HEADER_SIZE … #define ANMF_CHUNK_SIZE … #define ANIM_CHUNK_SIZE … #define VP8X_CHUNK_SIZE … #define MAX_CANVAS_SIZE … #define MAX_IMAGE_AREA … #define MAX_LOOP_COUNT … #define MAX_DURATION … #define MAX_POSITION_OFFSET … // Maximum chunk payload is such that adding the header and padding won't // overflow a uint32_t. #define MAX_CHUNK_PAYLOAD … #endif // WEBP_WEBP_FORMAT_CONSTANTS_H_
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