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| Direktori : /usr/include/vpx/ |
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| Current File : //usr/include/vpx/vp8cx.h |
/*
* 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.
*/
#ifndef VP8CX_H
#define VP8CX_H
/*!\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.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*!\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);
/* TODO(jkoleszar): These move to VP9 in a later patch set. */
extern vpx_codec_iface_t vpx_codec_vp9_cx_algo;
extern vpx_codec_iface_t *vpx_codec_vp9_cx(void);
extern vpx_codec_iface_t vpx_codec_vp9x_cx_algo;
extern vpx_codec_iface_t *vpx_codec_vp9x_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
*/
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 Max data rate for Intra frames
*
* This value controls additional clamping on the maximum size of a
* keyframe. It is expressed as a percentage of the average
* per-frame bitrate, with the special (and default) value 0 meaning
* unlimited, or no additional clamping beyond the codec's built-in
* algorithm.
*
* For example, to allocate no more than 4.5 frames worth of bitrate
* to a keyframe, set this to 450.
*
*/
VP8E_SET_MAX_INTRA_BITRATE_PCT,
/* TODO(jkoleszar): Move to vp9cx.h */
VP9E_SET_LOSSLESS,
VP9E_SET_TILE_COLUMNS,
VP9E_SET_TILE_ROWS,
VP9E_SET_FRAME_PARALLEL_DECODING,
VP9E_SET_AQ_MODE,
VP9E_SET_SVC,
VP9E_SET_SVC_PARAMETERS
};
/*!\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 {
/*! An id between 0 and 3 for each 16x16 region within a frame. */
unsigned char *roi_map;
unsigned int rows; /**< Number of rows. */
unsigned int cols; /**< Number of columns. */
// TODO(paulwilkins): broken for VP9 which has 8 segments
// q and loop filter deltas for each segment
// (see MAX_MB_SEGMENTS)
int delta_q[4]; /**< Quantizer deltas. */
int delta_lf[4]; /**< Loop filter deltas. */
/*! Static breakout threshold for each segment. */
unsigned int static_threshold[4];
} 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 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 vp9 svc parameters
*
* This defines parameters for svc encoding.
*
*/
typedef struct vpx_svc_parameters {
unsigned int width; /**< width of current spatial layer */
unsigned int height; /**< height of current spatial layer */
int layer; /**< current layer number - 0 = base */
int flags; /**< encode frame flags */
int max_quantizer; /**< max quantizer for current layer */
int min_quantizer; /**< min quantizer for current layer */
int distance_from_i_frame; /**< frame number within current gop */
int lst_fb_idx; /**< last frame frame buffer index */
int gld_fb_idx; /**< golden frame frame buffer index */
int alt_fb_idx; /**< alt reference frame frame buffer index */
} vpx_svc_parameters_t;
/*!\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(VP9E_SET_SVC, int)
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, vpx_svc_parameters_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, int) /* 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, int) /* vp8e_tuning */
VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL, unsigned int)
VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS, int)
VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS, int)
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
VPX_CTRL_USE_TYPE(VP9E_SET_AQ_MODE, unsigned int)
/*! @} - end defgroup vp8_encoder */
#ifdef __cplusplus
} // extern "C"
#endif
#endif