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diff --git a/drivers/webpold/enc/vp8li.h b/drivers/webpold/enc/vp8li.h
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+// Copyright 2012 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/
+// -----------------------------------------------------------------------------
+//
+// Lossless encoder: internal header.
+//
+// Author: Vikas Arora (vikaas.arora@gmail.com)
+
+#ifndef WEBP_ENC_VP8LI_H_
+#define WEBP_ENC_VP8LI_H_
+
+#include "./histogram.h"
+#include "../utils/bit_writer.h"
+#include "../encode.h"
+#include "../format_constants.h"
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+typedef struct {
+ const WebPConfig* config_; // user configuration and parameters
+ const WebPPicture* pic_; // input picture.
+
+ uint32_t* argb_; // Transformed argb image data.
+ uint32_t* argb_scratch_; // Scratch memory for argb rows
+ // (used for prediction).
+ uint32_t* transform_data_; // Scratch memory for transform data.
+ int current_width_; // Corresponds to packed image width.
+
+ // Encoding parameters derived from quality parameter.
+ int histo_bits_;
+ int transform_bits_;
+ int cache_bits_; // If equal to 0, don't use color cache.
+
+ // Encoding parameters derived from image characteristics.
+ int use_cross_color_;
+ int use_subtract_green_;
+ int use_predict_;
+ int use_palette_;
+ int palette_size_;
+ uint32_t palette_[MAX_PALETTE_SIZE];
+} VP8LEncoder;
+
+//------------------------------------------------------------------------------
+// internal functions. Not public.
+
+// Encodes the picture.
+// Returns 0 if config or picture is NULL or picture doesn't have valid argb
+// input.
+int VP8LEncodeImage(const WebPConfig* const config,
+ const WebPPicture* const picture);
+
+// Encodes the main image stream using the supplied bit writer.
+WebPEncodingError VP8LEncodeStream(const WebPConfig* const config,
+ const WebPPicture* const picture,
+ VP8LBitWriter* const bw);
+
+//------------------------------------------------------------------------------
+
+#if defined(__cplusplus) || defined(c_plusplus)
+} // extern "C"
+#endif
+
+#endif /* WEBP_ENC_VP8LI_H_ */