diff options
Diffstat (limited to 'drivers/webp/utils/quant_levels.h')
| -rw-r--r-- | drivers/webp/utils/quant_levels.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/webp/utils/quant_levels.h b/drivers/webp/utils/quant_levels.h index 1cb5a32cae..89ccafe40d 100644 --- a/drivers/webp/utils/quant_levels.h +++ b/drivers/webp/utils/quant_levels.h @@ -1,10 +1,8 @@ // Copyright 2011 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. +// 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/ // ----------------------------------------------------------------------------- // // Alpha plane quantization utility @@ -18,7 +16,7 @@ #include "../webp/types.h" -#ifdef __cplusplus +#if defined(__cplusplus) || defined(c_plusplus) extern "C" { #endif @@ -29,7 +27,12 @@ extern "C" { int QuantizeLevels(uint8_t* const data, int width, int height, int num_levels, uint64_t* const sse); -#ifdef __cplusplus +// Apply post-processing to input 'data' of size 'width'x'height' assuming +// that the source was quantized to a reduced number of levels. +// Returns false in case of error (data is NULL, invalid parameters, ...). +int DequantizeLevels(uint8_t* const data, int width, int height); + +#if defined(__cplusplus) || defined(c_plusplus) } // extern "C" #endif |