/*
* Copyright (c) 2010 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.
*/
/*!\defgroup vp8_encoder WebM VP8 Encoder
* \ingroup vp8
*
* @{
*/
#include "vp8.h"
/*!\file
* \brief Provides definitions for using the VP8 encoder algorithm within the
* vpx Codec Interface.
*/
#ifndef VP8CX_H
#define VP8CX_H
#include "vpx/vpx_codec_impl_top.h"
/*!\name Algorithm interface for VP8
*
* This interface provides the capability to encode raw VP8 streams, as would
* be found in AVI files.
* @{
*/
extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;
extern vpx_codec_iface_t* vpx_codec_vp8_cx(void);
/*!@} - end algorithm interface member group*/
/*
* Algorithm Flags
*/
/*!\brief Don't reference the last frame
*
* When this flag is set, the encoder will not use the last frame as a
* predictor. When not set, the encoder will choose whether to use the
* last frame or not automatically.
*/
#define VP8_EFLAG_NO_REF_LAST (1<<16)
/*!\brief Don't reference the golden frame
*
* When this flag is set, the encoder will not use the golden frame as a
* predictor. When not set, the encoder will choose whether to use the
* golden frame or not automatically.
*/
#define VP8_EFLAG_NO_REF_GF (1<<17)
/*!\brief Don't reference the alternate reference frame
*
* When this flag is set, the encoder will not use the alt ref frame as a
* predictor. When not set, the encoder will choose whether to use the
* alt ref frame or not automatically.
*/
#define VP8_EFLAG_NO_REF_ARF (1<<21)
/*!\brief Don't update the last frame
*
* When this flag is set, the encoder will not update the last frame with
* the contents of the current frame.
*/
#define VP8_EFLAG_NO_UPD_LAST (1<<18)
/*!\brief Don't update the golden frame
*
* When this flag is set, the encoder will not update the golden frame with
* the contents of the current frame.
*/
#define VP8_EFLAG_NO_UPD_GF (1<<22)
/*!\brief Don't update the alternate reference frame
*
* When this flag is set, the encoder will not update the alt ref frame with
* the contents of the current frame.
*/
#define VP8_EFLAG_NO_UPD_ARF (1<<23)
/*!\brief Force golden frame update
*
* When this flag is set, the encoder copy the contents of the current frame
* to the golden frame buffer.
*/
#define VP8_EFLAG_FORCE_GF (1<<19)
/*!\brief Force alternate reference frame update
*
* When this flag is set, the encoder copy the contents of the current frame
* to the alternate reference frame buffer.
*/
#define VP8_EFLAG_FORCE_ARF (1<<24)
/*!\brief Disable entropy update
*
* When this flag is set, the encoder will not update its internal entropy
* model based on the entropy of this frame.
*/
#define VP8_EFLAG_NO_UPD_ENTROPY (1<<20)
/*!\brief VP8 encoder control functions
*
* This set of macros define the control functions available for the VP8
* encoder interface.
*
* \sa #vpx_codec_control
*/
enum vp8e_enc_control_id
{
VP8E_UPD_ENTROPY = 5, /**< control function to set mode of entropy update in encoder */
VP8E_UPD_REFERENCE, /**< control function to set reference update mode in encoder */
VP8E_USE_REFERENCE, /**< control function to set which reference frame encoder can use */
VP8E_SET_ROI_MAP, /**< control function to pass an ROI map to encoder */
VP8E_SET_ACTIVEMAP, /**< control function to pass an Active map to encoder */
VP8E_SET_SCALEMODE = 11, /**< control function to set encoder scaling mode */
/*!\brief control function to set vp8 encoder cpuused
*
* Changes in this value influences, among others, the encoder's selection
* of motion estimation methods. Values greater than 0 will increase encoder
* speed at the expense of quality.
* The full set of adjustments can be found in
* onyx_if.c:vp8_set_speed_features().
* \todo List highlights of the changes at various levels.
*
* \note Valid range: -16..16 or {-16..-4, 4..16} w/CONFIG_REALTIME_ONLY
*/
VP8E_SET_CPUUSED = 13,
VP8E_SET_ENABLEAUTOALTREF, /**< control function to enable vp8 to automatic set and use altref frame */
VP8E_SET_NOISE_SENSITIVITY, /**< control function to set noise sensitivity */
VP8E_SET_SHARPNESS, /**< control function to set sharpness */
VP8E_SET_STATIC_THRESHOLD, /**< control function to set the threshold for macroblocks treated static */
VP8E_SET_TOKEN_PARTITIONS, /**< control function to set the number of token partitions */
VP8E_GET_LAST_QUANTIZER, /**< return the quantizer chosen by the
encoder for the last frame using the internal
scale */
VP8E_GET_LAST_QUANTIZER_64, /**< return the quantizer chosen by the
encoder for the last frame, using the 0..63
scale as used by the rc_*_quantizer config
parameters */
VP8E_SET_ARNR_MAXFRAMES, /**< control function to set the max number of frames blurred creating arf*/
VP8E_SET_ARNR_STRENGTH , /**< control function to set the filter strength for the arf */
VP8E_SET_ARNR_TYPE , /**< control function to set the type of filter to use for the arf*/
VP8E_SET_TUNING, /**< control function to set visual tuning */
/*!\brief control function to set constrained quality level
*
* \attention For this value to be used vpx_codec_enc_cfg_t::g_usage must be
* set to #VPX_CQ.
* \note Valid range: 0..63
*/
VP8E_SET_CQ_LEVEL,
};
/*!\brief vpx 1-D scaling mode
*
* This set of constants define 1-D vpx scaling modes
*/
typedef enum vpx_scaling_mode_1d
{
VP8E_NORMAL = 0,
VP8E_FOURFIVE = 1,
VP8E_THREEFIVE = 2,
VP8E_ONETWO = 3
} VPX_SCALING_MODE;
/*!\brief vpx region of interest map
*
* These defines the data structures for the region of interest map
*
*/
typedef struct vpx_roi_map
{
unsigned char *roi_map; /**< specify an id between 0 and 3 for each 16x16 region within a frame */
unsigned int rows; /**< number of rows */
unsigned int cols; /**< number of cols */
int delta_q[4]; /**< quantizer delta [-64, 64] off baseline for regions with id between 0 and 3*/
int delta_lf[4]; /**< loop filter strength delta [-32, 32] for regions with id between 0 and 3 */
unsigned int static_threshold[4];/**< threshold for region to be treated as static */
} vpx_roi_map_t;
/*!\brief vpx active region map
*
* These defines the data structures for active region map
*
*/
typedef struct vpx_active_map
{
unsigned char *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
unsigned int rows; /**< number of rows */
unsigned int cols; /**< number of cols */
} vpx_active_map_t;
/*!\brief vpx image scaling mode
*
* This defines the data structure for image scaling mode
*
*/
typedef struct vpx_scaling_mode
{
VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode */
} vpx_scaling_mode_t;
/*!\brief VP8 encoding mode
*
* This defines VP8 encoding mode
*
*/
typedef enum
{
VP8_BEST_QUALITY_ENCODING,
VP8_GOOD_QUALITY_ENCODING,
VP8_REAL_TIME_ENCODING
} vp8e_encoding_mode;
/*!\brief VP8 token partition mode
*
* This defines VP8 partitioning mode for compressed data, i.e., the number of
* sub-streams in the bitstream. Used for parallelized decoding.
*
*/
typedef enum
{
VP8_ONE_TOKENPARTITION = 0,
VP8_TWO_TOKENPARTITION = 1,
VP8_FOUR_TOKENPARTITION = 2,
VP8_EIGHT_TOKENPARTITION = 3,
} vp8e_token_partitions;
/*!\brief VP8 model tuning parameters
*
* Changes the encoder to tune for certain types of input material.
*
*/
typedef enum
{
VP8_TUNE_PSNR,
VP8_TUNE_SSIM
} vp8e_tuning;
/*!\brief VP8 encoder control function parameter type
*
* Defines the data types that VP8E control functions take. Note that
* additional common controls are defined in vp8.h
*
*/
/* These controls have been deprecated in favor of the flags parameter to
* vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
*/
VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY, int)
VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE, int)
VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE, int)
VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, vp8e_token_partitions)
VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH , unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE , unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_TUNING, vp8e_tuning)
VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL , unsigned int)
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
/*! @} - end defgroup vp8_encoder */
#include "vpx/vpx_codec_impl_bottom.h"
#endif