2 * Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license and patent
5 * grant that can be found in the LICENSE file in the root of the source
6 * tree. All contributing project authors may be found in the AUTHORS
7 * file in the root of the source tree.
11 /*!\defgroup vp8_encoder WebM VP8 Encoder
19 * \brief Provides definitions for using the VP8 encoder algorithm within the
20 * vpx Codec Interface.
24 #include "vpx_codec_impl_top.h"
26 /*!\brief Algorithm interface for VP8
28 * This interface provides the capability to encode raw VP8 streams, as would
29 * be found in AVI files.
31 extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;
38 /*!\brief Don't reference the last frame
40 * When this flag is set, the encoder will not use the last frame as a
41 * predictor. When not set, the encoder will choose whether to use the
42 * last frame or not automatically.
44 #define VP8_EFLAG_NO_REF_LAST (1<<16)
47 /*!\brief Don't reference the golden frame
49 * When this flag is set, the encoder will not use the golden frame as a
50 * predictor. When not set, the encoder will choose whether to use the
51 * golden frame or not automatically.
53 #define VP8_EFLAG_NO_REF_GF (1<<17)
56 /*!\brief Don't reference the alternate reference frame
58 * When this flag is set, the encoder will not use the alt ref frame as a
59 * predictor. When not set, the encoder will choose whether to use the
60 * alt ref frame or not automatically.
62 #define VP8_EFLAG_NO_REF_ARF (1<<21)
65 /*!\brief Don't update the last frame
67 * When this flag is set, the encoder will not update the last frame with
68 * the contents of the current frame.
70 #define VP8_EFLAG_NO_UPD_LAST (1<<18)
73 /*!\brief Don't update the golden frame
75 * When this flag is set, the encoder will not update the golden frame with
76 * the contents of the current frame.
78 #define VP8_EFLAG_NO_UPD_GF (1<<22)
81 /*!\brief Don't update the alternate reference frame
83 * When this flag is set, the encoder will not update the alt ref frame with
84 * the contents of the current frame.
86 #define VP8_EFLAG_NO_UPD_ARF (1<<23)
89 /*!\brief Force golden frame update
91 * When this flag is set, the encoder copy the contents of the current frame
92 * to the golden frame buffer.
94 #define VP8_EFLAG_FORCE_GF (1<<19)
97 /*!\brief Force alternate reference frame update
99 * When this flag is set, the encoder copy the contents of the current frame
100 * to the alternate reference frame buffer.
102 #define VP8_EFLAG_FORCE_ARF (1<<24)
105 /*!\brief Disable entropy update
107 * When this flag is set, the encoder will not update its internal entropy
108 * model based on the entropy of this frame.
110 #define VP8_EFLAG_NO_UPD_ENTROPY (1<<20)
113 /*!\brief VP8 encoder control functions
115 * The set of macros define the control functions of VP8 encoder interface
117 enum vp8e_enc_control_id
119 VP8E_UPD_ENTROPY = 5, /**< control function to set mode of entropy update in encoder */
120 VP8E_UPD_REFERENCE, /**< control function to set reference update mode in encoder */
121 VP8E_USE_REFERENCE, /**< control function to set which reference frame encoder can use */
122 VP8E_SET_ROI_MAP, /**< control function to pass an ROI map to encoder */
123 VP8E_SET_ACTIVEMAP, /**< control function to pass an Active map to encoder */
124 VP8E_SET_SCALEMODE = 11, /**< control function to set encoder scaling mode */
125 VP8E_SET_CPUUSED = 13, /**< control function to set vp8 encoder cpuused */
126 VP8E_SET_ENABLEAUTOALTREF, /**< control function to enable vp8 to automatic set and use altref frame */
127 VP8E_SET_NOISE_SENSITIVITY, /**< control function to set noise sensitivity */
128 VP8E_SET_SHARPNESS, /**< control function to set sharpness */
129 VP8E_SET_STATIC_THRESHOLD, /**< control function to set the threshold for macroblocks treated static */
130 VP8E_SET_TOKEN_PARTITIONS, /**< control function to set the number of token partitions */
131 VP8E_GET_LAST_QUANTIZER, /**< return the quantizer chosen by the
132 encoder for the last frame using the internal
134 VP8E_GET_LAST_QUANTIZER_64, /**< return the quantizer chosen by the
135 encoder for the last frame, using the 0..63
136 scale as used by the rc_*_quantizer config
138 VP8E_SET_ARNR_MAXFRAMES, /**< control function to set the max number of frames blurred creating arf*/
139 VP8E_SET_ARNR_STRENGTH , /**< control function to set the filter strength for the arf */
140 VP8E_SET_ARNR_TYPE , /**< control function to set the type of filter to use for the arf*/
143 /*!\brief vpx 1-D scaling mode
145 * This set of constants define 1-D vpx scaling modes
147 typedef enum vpx_scaling_mode_1d
156 /*!\brief vpx region of interest map
158 * These defines the data structures for the region of interest map
162 typedef struct vpx_roi_map
164 unsigned char *roi_map; /**< specify an id between 0 and 3 for each 16x16 region within a frame */
165 unsigned int rows; /**< number of rows */
166 unsigned int cols; /**< number of cols */
167 int delta_q[4]; /**< quantizer delta [-64, 64] off baseline for regions with id between 0 and 3*/
168 int delta_lf[4]; /**< loop filter strength delta [-32, 32] for regions with id between 0 and 3 */
169 unsigned int static_threshold[4];/**< threshold for region to be treated as static */
172 /*!\brief vpx active region map
174 * These defines the data structures for active region map
179 typedef struct vpx_active_map
181 unsigned char *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
182 unsigned int rows; /**< number of rows */
183 unsigned int cols; /**< number of cols */
186 /*!\brief vpx image scaling mode
188 * This defines the data structure for image scaling mode
191 typedef struct vpx_scaling_mode
193 VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
194 VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode */
195 } vpx_scaling_mode_t;
197 /*!\brief VP8 encoding mode
199 * This defines VP8 encoding mode
204 VP8_BEST_QUALITY_ENCODING,
205 VP8_GOOD_QUALITY_ENCODING,
206 VP8_REAL_TIME_ENCODING
207 } vp8e_encoding_mode;
209 /*!\brief VP8 token partition mode
211 * This defines VP8 partitioning mode for compressed data, i.e., the number of
212 * sub-streams in the bitstream. Used for parallelized decoding.
218 VP8_ONE_TOKENPARTITION = 0,
219 VP8_TWO_TOKENPARTITION = 1,
220 VP8_FOUR_TOKENPARTITION = 2,
221 VP8_EIGHT_TOKENPARTITION = 3,
222 } vp8e_token_partitions;
225 /*!\brief VP8 encoder control function parameter type
227 * Defines the data types that VP8E control functions take. Note that
228 * additional common controls are defined in vp8.h
233 /* These controls have been deprecated in favor of the flags parameter to
234 * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
236 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY, int)
237 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE, int)
238 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE, int)
240 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
241 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
242 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
244 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
245 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
246 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
247 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
248 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
249 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, vp8e_token_partitions)
251 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
252 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH , unsigned int)
253 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE , unsigned int)
256 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
257 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
259 /*! @} - end defgroup vp8_encoder */
260 #include "vpx_codec_impl_bottom.h"