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Deb Mukherjee authored
Separates the entropy coding context models for 4x4, 8x8 and 16x16 ADST variants. There is a small improvement for HD (hd/std-hd) by about 0.1-0.2%. Results on derf/yt are about the same, probably because there is not enough statistics. Results may improve somewhat once the initial probability tables are updated for the hybrid transforms which is coming soon. Change-Id: Ic7c0c62dacc68ef551054fdb575be8b8507d32a8
3f5d60b3
/* * Copyright (c) 2011 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE 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. */#ifndef VP9_ENCODER_VP9_LOOKAHEAD_H_#define VP9_ENCODER_VP9_LOOKAHEAD_H_#include "vpx_scale/yv12config.h"#include "vpx/vpx_integer.h"#define MAX_LAG_BUFFERS 25struct lookahead_entry { YV12_BUFFER_CONFIG img; int64_t ts_start; int64_t ts_end; unsigned int flags;};struct lookahead_ctx;/**\brief Initializes the lookahead stage * * The lookahead stage is a queue of frame buffers on which some analysis * may be done when buffers are enqueued. */struct lookahead_ctx *vp9_lookahead_init(unsigned int width, unsigned int height, unsigned int subsampling_x, unsigned int subsampling_y, unsigned int depth);/**\brief Destroys the lookahead stage */void vp9_lookahead_destroy(struct lookahead_ctx *ctx);/**\brief Enqueue a source buffer * * This function will copy the source image into a new framebuffer with * the expected stride/border. * * If active_map is non-NULL and there is only one frame in the queue, then copy * only active macroblocks. * * \param[in] ctx Pointer to the lookahead context * \param[in] src Pointer to the image to enqueue * \param[in] ts_start Timestamp for the start of this frame * \param[in] ts_end Timestamp for the end of this frame * \param[in] flags Flags set on this frame * \param[in] active_map Map that specifies which macroblock is active */int vp9_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src, int64_t ts_start, int64_t ts_end, unsigned int flags, unsigned char *active_map);/**\brief Get the next source buffer to encode * * * \param[in] ctx Pointer to the lookahead context * \param[in] drain Flag indicating the buffer should be drained71727374757677787980818283848586878889909192939495969798
* (return a buffer regardless of the current queue depth)
*
* \retval NULL, if drain set and queue is empty
* \retval NULL, if drain not set and queue not of the configured depth
*/
struct lookahead_entry *vp9_lookahead_pop(struct lookahead_ctx *ctx,
int drain);
/**\brief Get a future source buffer to encode
*
* \param[in] ctx Pointer to the lookahead context
* \param[in] index Index of the frame to be returned, 0 == next frame
*
* \retval NULL, if no buffer exists at the specified index
*/
struct lookahead_entry *vp9_lookahead_peek(struct lookahead_ctx *ctx,
int index);
/**\brief Get the number of frames currently in the lookahead queue
*
* \param[in] ctx Pointer to the lookahead context
*/
unsigned int vp9_lookahead_depth(struct lookahead_ctx *ctx);
#endif // VP9_ENCODER_VP9_LOOKAHEAD_H_