318 строки
11 KiB
C
318 строки
11 KiB
C
/*
|
||
* 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_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);
|
||
|
||
/* 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
|
||
};
|
||
|
||
/*!\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 [-63, 63] off baseline for regions with id between 0 and 3*/
|
||
int delta_lf[4]; /**< loop filter strength delta [-63, 63] 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 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, 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)
|
||
/*! @} - end defgroup vp8_encoder */
|
||
#include "vpx_codec_impl_bottom.h"
|
||
#endif
|