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.
13 /*!\defgroup vp8_encoder WebM VP8 Encoder
21 * \brief Provides definitions for using the VP8 encoder algorithm within the
22 * vpx Codec Interface.
29 /*!\name Algorithm interface for VP8
31 * This interface provides the capability to encode raw VP8 streams, as would
32 * be found in AVI files.
35 extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;
36 extern vpx_codec_iface_t *vpx_codec_vp8_cx(void);
38 /* TODO(jkoleszar): These move to VP9 in a later patch set. */
39 extern vpx_codec_iface_t vpx_codec_vp9_cx_algo;
40 extern vpx_codec_iface_t *vpx_codec_vp9_cx(void);
42 /*!@} - end algorithm interface member group*/
49 /*!\brief Don't reference the last frame
51 * When this flag is set, the encoder will not use the last frame as a
52 * predictor. When not set, the encoder will choose whether to use the
53 * last frame or not automatically.
55 #define VP8_EFLAG_NO_REF_LAST (1<<16)
58 /*!\brief Don't reference the golden frame
60 * When this flag is set, the encoder will not use the golden frame as a
61 * predictor. When not set, the encoder will choose whether to use the
62 * golden frame or not automatically.
64 #define VP8_EFLAG_NO_REF_GF (1<<17)
67 /*!\brief Don't reference the alternate reference frame
69 * When this flag is set, the encoder will not use the alt ref frame as a
70 * predictor. When not set, the encoder will choose whether to use the
71 * alt ref frame or not automatically.
73 #define VP8_EFLAG_NO_REF_ARF (1<<21)
76 /*!\brief Don't update the last frame
78 * When this flag is set, the encoder will not update the last frame with
79 * the contents of the current frame.
81 #define VP8_EFLAG_NO_UPD_LAST (1<<18)
84 /*!\brief Don't update the golden frame
86 * When this flag is set, the encoder will not update the golden frame with
87 * the contents of the current frame.
89 #define VP8_EFLAG_NO_UPD_GF (1<<22)
92 /*!\brief Don't update the alternate reference frame
94 * When this flag is set, the encoder will not update the alt ref frame with
95 * the contents of the current frame.
97 #define VP8_EFLAG_NO_UPD_ARF (1<<23)
100 /*!\brief Force golden frame update
102 * When this flag is set, the encoder copy the contents of the current frame
103 * to the golden frame buffer.
105 #define VP8_EFLAG_FORCE_GF (1<<19)
108 /*!\brief Force alternate reference frame update
110 * When this flag is set, the encoder copy the contents of the current frame
111 * to the alternate reference frame buffer.
113 #define VP8_EFLAG_FORCE_ARF (1<<24)
116 /*!\brief Disable entropy update
118 * When this flag is set, the encoder will not update its internal entropy
119 * model based on the entropy of this frame.
121 #define VP8_EFLAG_NO_UPD_ENTROPY (1<<20)
124 /*!\brief VP8 encoder control functions
126 * This set of macros define the control functions available for the VP8
129 * \sa #vpx_codec_control
131 enum vp8e_enc_control_id {
132 VP8E_UPD_ENTROPY = 5, /**< control function to set mode of entropy update in encoder */
133 VP8E_UPD_REFERENCE, /**< control function to set reference update mode in encoder */
134 VP8E_USE_REFERENCE, /**< control function to set which reference frame encoder can use */
135 VP8E_SET_ROI_MAP, /**< control function to pass an ROI map to encoder */
136 VP8E_SET_ACTIVEMAP, /**< control function to pass an Active map to encoder */
137 VP8E_SET_SCALEMODE = 11, /**< control function to set encoder scaling mode */
138 /*!\brief control function to set vp8 encoder cpuused
140 * Changes in this value influences, among others, the encoder's selection
141 * of motion estimation methods. Values greater than 0 will increase encoder
142 * speed at the expense of quality.
143 * The full set of adjustments can be found in
144 * onyx_if.c:vp8_set_speed_features().
145 * \todo List highlights of the changes at various levels.
147 * \note Valid range: -16..16
149 VP8E_SET_CPUUSED = 13,
150 VP8E_SET_ENABLEAUTOALTREF, /**< control function to enable vp8 to automatic set and use altref frame */
151 VP8E_SET_NOISE_SENSITIVITY, /**< control function to set noise sensitivity */
152 VP8E_SET_SHARPNESS, /**< control function to set sharpness */
153 VP8E_SET_STATIC_THRESHOLD, /**< control function to set the threshold for macroblocks treated static */
154 VP8E_SET_TOKEN_PARTITIONS, /**< control function to set the number of token partitions */
155 VP8E_GET_LAST_QUANTIZER, /**< return the quantizer chosen by the
156 encoder for the last frame using the internal
158 VP8E_GET_LAST_QUANTIZER_64, /**< return the quantizer chosen by the
159 encoder for the last frame, using the 0..63
160 scale as used by the rc_*_quantizer config
162 VP8E_SET_ARNR_MAXFRAMES, /**< control function to set the max number of frames blurred creating arf*/
163 VP8E_SET_ARNR_STRENGTH, /**< control function to set the filter strength for the arf */
164 VP8E_SET_ARNR_TYPE, /**< control function to set the type of filter to use for the arf*/
165 VP8E_SET_TUNING, /**< control function to set visual tuning */
166 /*!\brief control function to set constrained quality level
168 * \attention For this value to be used vpx_codec_enc_cfg_t::g_usage must be
170 * \note Valid range: 0..63
174 /*!\brief Max data rate for Intra frames
176 * This value controls additional clamping on the maximum size of a
177 * keyframe. It is expressed as a percentage of the average
178 * per-frame bitrate, with the special (and default) value 0 meaning
179 * unlimited, or no additional clamping beyond the codec's built-in
182 * For example, to allocate no more than 4.5 frames worth of bitrate
183 * to a keyframe, set this to 450.
186 VP8E_SET_MAX_INTRA_BITRATE_PCT,
189 /* TODO(jkoleszar): Move to vp9cx.h */
191 VP9E_SET_TILE_COLUMNS,
193 VP9E_SET_FRAME_PARALLEL_DECODING,
197 VP9E_SET_SVC_PARAMETERS,
198 VP9E_SET_SVC_LAYER_ID
201 /*!\brief vpx 1-D scaling mode
203 * This set of constants define 1-D vpx scaling modes
205 typedef enum vpx_scaling_mode_1d {
213 /*!\brief vpx region of interest map
215 * These defines the data structures for the region of interest map
219 typedef struct vpx_roi_map {
220 /*! An id between 0 and 3 for each 16x16 region within a frame. */
221 unsigned char *roi_map;
222 unsigned int rows; /**< Number of rows. */
223 unsigned int cols; /**< Number of columns. */
224 // TODO(paulwilkins): broken for VP9 which has 8 segments
225 // q and loop filter deltas for each segment
226 // (see MAX_MB_SEGMENTS)
227 int delta_q[4]; /**< Quantizer deltas. */
228 int delta_lf[4]; /**< Loop filter deltas. */
229 /*! Static breakout threshold for each segment. */
230 unsigned int static_threshold[4];
233 /*!\brief vpx active region map
235 * These defines the data structures for active region map
240 typedef struct vpx_active_map {
241 unsigned char *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
242 unsigned int rows; /**< number of rows */
243 unsigned int cols; /**< number of cols */
246 /*!\brief vpx image scaling mode
248 * This defines the data structure for image scaling mode
251 typedef struct vpx_scaling_mode {
252 VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
253 VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode */
254 } vpx_scaling_mode_t;
256 /*!\brief VP8 token partition mode
258 * This defines VP8 partitioning mode for compressed data, i.e., the number of
259 * sub-streams in the bitstream. Used for parallelized decoding.
264 VP8_ONE_TOKENPARTITION = 0,
265 VP8_TWO_TOKENPARTITION = 1,
266 VP8_FOUR_TOKENPARTITION = 2,
267 VP8_EIGHT_TOKENPARTITION = 3
268 } vp8e_token_partitions;
271 /*!\brief VP8 model tuning parameters
273 * Changes the encoder to tune for certain types of input material.
281 /*!\brief vp9 svc parameters
283 * This defines parameters for svc encoding.
286 typedef struct vpx_svc_parameters {
287 unsigned int width; /**< width of current spatial layer */
288 unsigned int height; /**< height of current spatial layer */
289 int spatial_layer; /**< current spatial layer number - 0 = base */
290 int temporal_layer; /**< current temporal layer number - 0 = base */
291 int flags; /**< encode frame flags */
292 int max_quantizer; /**< max quantizer for current layer */
293 int min_quantizer; /**< min quantizer for current layer */
294 int distance_from_i_frame; /**< frame number within current gop */
295 int lst_fb_idx; /**< last frame frame buffer index */
296 int gld_fb_idx; /**< golden frame frame buffer index */
297 int alt_fb_idx; /**< alt reference frame frame buffer index */
298 } vpx_svc_parameters_t;
300 typedef struct vpx_svc_layer_id {
301 int spatial_layer_id;
302 int temporal_layer_id;
303 } vpx_svc_layer_id_t;
305 /*!\brief VP8 encoder control function parameter type
307 * Defines the data types that VP8E control functions take. Note that
308 * additional common controls are defined in vp8.h
313 /* These controls have been deprecated in favor of the flags parameter to
314 * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
316 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY, int)
317 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE, int)
318 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE, int)
320 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
321 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
322 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
324 VPX_CTRL_USE_TYPE(VP9E_SET_SVC, int)
325 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, vpx_svc_parameters_t *)
326 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_LAYER_ID, vpx_svc_layer_id_t *)
328 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
329 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
330 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
331 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
332 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
333 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, int) /* vp8e_token_partitions */
335 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
336 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH, unsigned int)
337 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE, unsigned int)
338 VPX_CTRL_USE_TYPE(VP8E_SET_TUNING, int) /* vp8e_tuning */
339 VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL, unsigned int)
341 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS, int)
342 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS, int)
344 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
345 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
347 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
349 VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
351 VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
353 VPX_CTRL_USE_TYPE(VP9E_SET_AQ_MODE, unsigned int)
355 /*! @} - end defgroup vp8_encoder */
360 #endif // VPX_VP8CX_H_