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);
41 extern vpx_codec_iface_t vpx_codec_vp9x_cx_algo;
42 extern vpx_codec_iface_t *vpx_codec_vp9x_cx(void);
44 /*!@} - end algorithm interface member group*/
51 /*!\brief Don't reference the last frame
53 * When this flag is set, the encoder will not use the last frame as a
54 * predictor. When not set, the encoder will choose whether to use the
55 * last frame or not automatically.
57 #define VP8_EFLAG_NO_REF_LAST (1<<16)
60 /*!\brief Don't reference the golden frame
62 * When this flag is set, the encoder will not use the golden frame as a
63 * predictor. When not set, the encoder will choose whether to use the
64 * golden frame or not automatically.
66 #define VP8_EFLAG_NO_REF_GF (1<<17)
69 /*!\brief Don't reference the alternate reference frame
71 * When this flag is set, the encoder will not use the alt ref frame as a
72 * predictor. When not set, the encoder will choose whether to use the
73 * alt ref frame or not automatically.
75 #define VP8_EFLAG_NO_REF_ARF (1<<21)
78 /*!\brief Don't update the last frame
80 * When this flag is set, the encoder will not update the last frame with
81 * the contents of the current frame.
83 #define VP8_EFLAG_NO_UPD_LAST (1<<18)
86 /*!\brief Don't update the golden frame
88 * When this flag is set, the encoder will not update the golden frame with
89 * the contents of the current frame.
91 #define VP8_EFLAG_NO_UPD_GF (1<<22)
94 /*!\brief Don't update the alternate reference frame
96 * When this flag is set, the encoder will not update the alt ref frame with
97 * the contents of the current frame.
99 #define VP8_EFLAG_NO_UPD_ARF (1<<23)
102 /*!\brief Force golden frame update
104 * When this flag is set, the encoder copy the contents of the current frame
105 * to the golden frame buffer.
107 #define VP8_EFLAG_FORCE_GF (1<<19)
110 /*!\brief Force alternate reference frame update
112 * When this flag is set, the encoder copy the contents of the current frame
113 * to the alternate reference frame buffer.
115 #define VP8_EFLAG_FORCE_ARF (1<<24)
118 /*!\brief Disable entropy update
120 * When this flag is set, the encoder will not update its internal entropy
121 * model based on the entropy of this frame.
123 #define VP8_EFLAG_NO_UPD_ENTROPY (1<<20)
126 /*!\brief VP8 encoder control functions
128 * This set of macros define the control functions available for the VP8
131 * \sa #vpx_codec_control
133 enum vp8e_enc_control_id {
134 VP8E_UPD_ENTROPY = 5, /**< control function to set mode of entropy update in encoder */
135 VP8E_UPD_REFERENCE, /**< control function to set reference update mode in encoder */
136 VP8E_USE_REFERENCE, /**< control function to set which reference frame encoder can use */
137 VP8E_SET_ROI_MAP, /**< control function to pass an ROI map to encoder */
138 VP8E_SET_ACTIVEMAP, /**< control function to pass an Active map to encoder */
139 VP8E_SET_SCALEMODE = 11, /**< control function to set encoder scaling mode */
140 /*!\brief control function to set vp8 encoder cpuused
142 * Changes in this value influences, among others, the encoder's selection
143 * of motion estimation methods. Values greater than 0 will increase encoder
144 * speed at the expense of quality.
145 * The full set of adjustments can be found in
146 * onyx_if.c:vp8_set_speed_features().
147 * \todo List highlights of the changes at various levels.
149 * \note Valid range: -16..16
151 VP8E_SET_CPUUSED = 13,
152 VP8E_SET_ENABLEAUTOALTREF, /**< control function to enable vp8 to automatic set and use altref frame */
153 VP8E_SET_NOISE_SENSITIVITY, /**< control function to set noise sensitivity */
154 VP8E_SET_SHARPNESS, /**< control function to set sharpness */
155 VP8E_SET_STATIC_THRESHOLD, /**< control function to set the threshold for macroblocks treated static */
156 VP8E_SET_TOKEN_PARTITIONS, /**< control function to set the number of token partitions */
157 VP8E_GET_LAST_QUANTIZER, /**< return the quantizer chosen by the
158 encoder for the last frame using the internal
160 VP8E_GET_LAST_QUANTIZER_64, /**< return the quantizer chosen by the
161 encoder for the last frame, using the 0..63
162 scale as used by the rc_*_quantizer config
164 VP8E_SET_ARNR_MAXFRAMES, /**< control function to set the max number of frames blurred creating arf*/
165 VP8E_SET_ARNR_STRENGTH, /**< control function to set the filter strength for the arf */
166 VP8E_SET_ARNR_TYPE, /**< control function to set the type of filter to use for the arf*/
167 VP8E_SET_TUNING, /**< control function to set visual tuning */
168 /*!\brief control function to set constrained quality level
170 * \attention For this value to be used vpx_codec_enc_cfg_t::g_usage must be
172 * \note Valid range: 0..63
176 /*!\brief Max data rate for Intra frames
178 * This value controls additional clamping on the maximum size of a
179 * keyframe. It is expressed as a percentage of the average
180 * per-frame bitrate, with the special (and default) value 0 meaning
181 * unlimited, or no additional clamping beyond the codec's built-in
184 * For example, to allocate no more than 4.5 frames worth of bitrate
185 * to a keyframe, set this to 450.
188 VP8E_SET_MAX_INTRA_BITRATE_PCT,
191 /* TODO(jkoleszar): Move to vp9cx.h */
193 VP9E_SET_TILE_COLUMNS,
195 VP9E_SET_FRAME_PARALLEL_DECODING,
206 /*!\brief vpx 1-D scaling mode
208 * This set of constants define 1-D vpx scaling modes
210 typedef enum vpx_scaling_mode_1d {
218 /*!\brief vpx region of interest map
220 * These defines the data structures for the region of interest map
224 typedef struct vpx_roi_map {
225 /*! An id between 0 and 3 for each 16x16 region within a frame. */
226 unsigned char *roi_map;
227 unsigned int rows; /**< Number of rows. */
228 unsigned int cols; /**< Number of columns. */
229 // TODO(paulwilkins): broken for VP9 which has 8 segments
230 // q and loop filter deltas for each segment
231 // (see MAX_MB_SEGMENTS)
232 int delta_q[4]; /**< Quantizer deltas. */
233 int delta_lf[4]; /**< Loop filter deltas. */
234 /*! Static breakout threshold for each segment. */
235 unsigned int static_threshold[4];
238 /*!\brief vpx active region map
240 * These defines the data structures for active region map
245 typedef struct vpx_active_map {
246 unsigned char *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
247 unsigned int rows; /**< number of rows */
248 unsigned int cols; /**< number of cols */
251 /*!\brief vpx image scaling mode
253 * This defines the data structure for image scaling mode
256 typedef struct vpx_scaling_mode {
257 VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
258 VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode */
259 } vpx_scaling_mode_t;
261 /*!\brief VP8 token partition mode
263 * This defines VP8 partitioning mode for compressed data, i.e., the number of
264 * sub-streams in the bitstream. Used for parallelized decoding.
269 VP8_ONE_TOKENPARTITION = 0,
270 VP8_TWO_TOKENPARTITION = 1,
271 VP8_FOUR_TOKENPARTITION = 2,
272 VP8_EIGHT_TOKENPARTITION = 3
273 } vp8e_token_partitions;
276 /*!\brief VP8 model tuning parameters
278 * Changes the encoder to tune for certain types of input material.
287 /*!\brief VP8 encoder control function parameter type
289 * Defines the data types that VP8E control functions take. Note that
290 * additional common controls are defined in vp8.h
295 /* These controls have been deprecated in favor of the flags parameter to
296 * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
298 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY, int)
299 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE, int)
300 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE, int)
302 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
303 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
304 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
306 VPX_CTRL_USE_TYPE(VP9E_SET_LAYER, int *)
307 VPX_CTRL_USE_TYPE(VP9E_SET_SVC, int)
309 VPX_CTRL_USE_TYPE(VP9E_SET_WIDTH, unsigned int *)
310 VPX_CTRL_USE_TYPE(VP9E_SET_HEIGHT, unsigned int *)
312 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
313 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
314 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
315 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
316 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
317 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, int) /* vp8e_token_partitions */
319 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
320 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH, unsigned int)
321 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE, unsigned int)
322 VPX_CTRL_USE_TYPE(VP8E_SET_TUNING, int) /* vp8e_tuning */
323 VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL, unsigned int)
325 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS, int)
326 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS, int)
328 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
329 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
331 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
333 VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
335 VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
337 VPX_CTRL_USE_TYPE(VP9E_SET_MAX_Q, unsigned int)
338 VPX_CTRL_USE_TYPE(VP9E_SET_MIN_Q, unsigned int)
339 /*! @} - end defgroup vp8_encoder */