2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
12 /*!\defgroup vp8_encoder WebM VP8 Encoder
20 * \brief Provides definitions for using the VP8 encoder algorithm within the
21 * vpx Codec Interface.
25 #include "vpx/vpx_codec_impl_top.h"
27 /*!\brief Algorithm interface for VP8
29 * This interface provides the capability to encode raw VP8 streams, as would
30 * be found in AVI files.
32 extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;
39 /*!\brief Don't reference the last frame
41 * When this flag is set, the encoder will not use the last frame as a
42 * predictor. When not set, the encoder will choose whether to use the
43 * last frame or not automatically.
45 #define VP8_EFLAG_NO_REF_LAST (1<<16)
48 /*!\brief Don't reference the golden frame
50 * When this flag is set, the encoder will not use the golden frame as a
51 * predictor. When not set, the encoder will choose whether to use the
52 * golden frame or not automatically.
54 #define VP8_EFLAG_NO_REF_GF (1<<17)
57 /*!\brief Don't reference the alternate reference frame
59 * When this flag is set, the encoder will not use the alt ref frame as a
60 * predictor. When not set, the encoder will choose whether to use the
61 * alt ref frame or not automatically.
63 #define VP8_EFLAG_NO_REF_ARF (1<<21)
66 /*!\brief Don't update the last frame
68 * When this flag is set, the encoder will not update the last frame with
69 * the contents of the current frame.
71 #define VP8_EFLAG_NO_UPD_LAST (1<<18)
74 /*!\brief Don't update the golden frame
76 * When this flag is set, the encoder will not update the golden frame with
77 * the contents of the current frame.
79 #define VP8_EFLAG_NO_UPD_GF (1<<22)
82 /*!\brief Don't update the alternate reference frame
84 * When this flag is set, the encoder will not update the alt ref frame with
85 * the contents of the current frame.
87 #define VP8_EFLAG_NO_UPD_ARF (1<<23)
90 /*!\brief Force golden frame update
92 * When this flag is set, the encoder copy the contents of the current frame
93 * to the golden frame buffer.
95 #define VP8_EFLAG_FORCE_GF (1<<19)
98 /*!\brief Force alternate reference frame update
100 * When this flag is set, the encoder copy the contents of the current frame
101 * to the alternate reference frame buffer.
103 #define VP8_EFLAG_FORCE_ARF (1<<24)
106 /*!\brief Disable entropy update
108 * When this flag is set, the encoder will not update its internal entropy
109 * model based on the entropy of this frame.
111 #define VP8_EFLAG_NO_UPD_ENTROPY (1<<20)
114 /*!\brief VP8 encoder control functions
116 * The set of macros define the control functions of VP8 encoder interface
118 enum vp8e_enc_control_id
120 VP8E_UPD_ENTROPY = 5, /**< control function to set mode of entropy update in encoder */
121 VP8E_UPD_REFERENCE, /**< control function to set reference update mode in encoder */
122 VP8E_USE_REFERENCE, /**< control function to set which reference frame encoder can use */
123 VP8E_SET_ROI_MAP, /**< control function to pass an ROI map to encoder */
124 VP8E_SET_ACTIVEMAP, /**< control function to pass an Active map to encoder */
125 VP8E_SET_SCALEMODE = 11, /**< control function to set encoder scaling mode */
126 VP8E_SET_CPUUSED = 13, /**< control function to set vp8 encoder cpuused */
127 VP8E_SET_ENABLEAUTOALTREF, /**< control function to enable vp8 to automatic set and use altref frame */
128 VP8E_SET_NOISE_SENSITIVITY, /**< control function to set noise sensitivity */
129 VP8E_SET_SHARPNESS, /**< control function to set sharpness */
130 VP8E_SET_STATIC_THRESHOLD, /**< control function to set the threshold for macroblocks treated static */
131 VP8E_SET_TOKEN_PARTITIONS, /**< control function to set the number of token partitions */
132 VP8E_GET_LAST_QUANTIZER, /**< return the quantizer chosen by the
133 encoder for the last frame using the internal
135 VP8E_GET_LAST_QUANTIZER_64, /**< return the quantizer chosen by the
136 encoder for the last frame, using the 0..63
137 scale as used by the rc_*_quantizer config
139 VP8E_SET_ARNR_MAXFRAMES, /**< control function to set the max number of frames blurred creating arf*/
140 VP8E_SET_ARNR_STRENGTH , /**< control function to set the filter strength for the arf */
141 VP8E_SET_ARNR_TYPE , /**< control function to set the type of filter to use for the arf*/
144 /*!\brief vpx 1-D scaling mode
146 * This set of constants define 1-D vpx scaling modes
148 typedef enum vpx_scaling_mode_1d
157 /*!\brief vpx region of interest map
159 * These defines the data structures for the region of interest map
163 typedef struct vpx_roi_map
165 unsigned char *roi_map; /**< specify an id between 0 and 3 for each 16x16 region within a frame */
166 unsigned int rows; /**< number of rows */
167 unsigned int cols; /**< number of cols */
168 int delta_q[4]; /**< quantizer delta [-64, 64] off baseline for regions with id between 0 and 3*/
169 int delta_lf[4]; /**< loop filter strength delta [-32, 32] for regions with id between 0 and 3 */
170 unsigned int static_threshold[4];/**< threshold for region to be treated as static */
173 /*!\brief vpx active region map
175 * These defines the data structures for active region map
180 typedef struct vpx_active_map
182 unsigned char *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
183 unsigned int rows; /**< number of rows */
184 unsigned int cols; /**< number of cols */
187 /*!\brief vpx image scaling mode
189 * This defines the data structure for image scaling mode
192 typedef struct vpx_scaling_mode
194 VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
195 VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode */
196 } vpx_scaling_mode_t;
198 /*!\brief VP8 encoding mode
200 * This defines VP8 encoding mode
205 VP8_BEST_QUALITY_ENCODING,
206 VP8_GOOD_QUALITY_ENCODING,
207 VP8_REAL_TIME_ENCODING
208 } vp8e_encoding_mode;
210 /*!\brief VP8 token partition mode
212 * This defines VP8 partitioning mode for compressed data, i.e., the number of
213 * sub-streams in the bitstream. Used for parallelized decoding.
219 VP8_ONE_TOKENPARTITION = 0,
220 VP8_TWO_TOKENPARTITION = 1,
221 VP8_FOUR_TOKENPARTITION = 2,
222 VP8_EIGHT_TOKENPARTITION = 3,
223 } vp8e_token_partitions;
226 /*!\brief VP8 encoder control function parameter type
228 * Defines the data types that VP8E control functions take. Note that
229 * additional common controls are defined in vp8.h
234 /* These controls have been deprecated in favor of the flags parameter to
235 * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
237 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY, int)
238 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE, int)
239 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE, int)
241 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
242 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
243 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
245 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
246 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
247 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
248 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
249 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
250 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, vp8e_token_partitions)
252 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
253 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH , unsigned int)
254 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE , unsigned int)
257 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
258 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
260 /*! @} - end defgroup vp8_encoder */
261 #include "vpx/vpx_codec_impl_bottom.h"