vpx/vp8cx.h

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   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.
   9  */
  10
  11
  12 /*!\defgroup vp8_encoder WebM VP8 Encoder
  13  * \ingroup vp8
  14  *
  15  * @{
  16  */
  17 #include "vp8.h"
  18
  19 /*!\file
  20  * \brief Provides definitions for using the VP8 encoder algorithm within the
  21  *        vpx Codec Interface.
  22  */
  23 #ifndef VP8CX_H
  24 #define VP8CX_H
  25 #include "vpx/vpx_codec_impl_top.h"
  26
  27 /*!\brief Algorithm interface for VP8
  28  *
  29  * This interface provides the capability to encode raw VP8 streams, as would
  30  * be found in AVI files.
  31  */
  32 extern vpx_codec_iface_t  vpx_codec_vp8_cx_algo;
  33 extern vpx_codec_iface_t* vpx_codec_vp8_cx(void);
  34
  35
  36 /*
  37  * Algorithm Flags
  38  */
  39
  40 /*!\brief Don't reference the last frame
  41  *
  42  * When this flag is set, the encoder will not use the last frame as a
  43  * predictor. When not set, the encoder will choose whether to use the
  44  * last frame or not automatically.
  45  */
  46 #define VP8_EFLAG_NO_REF_LAST      (1<<16)
  47
  48
  49 /*!\brief Don't reference the golden frame
  50  *
  51  * When this flag is set, the encoder will not use the golden frame as a
  52  * predictor. When not set, the encoder will choose whether to use the
  53  * golden frame or not automatically.
  54  */
  55 #define VP8_EFLAG_NO_REF_GF        (1<<17)
  56
  57
  58 /*!\brief Don't reference the alternate reference frame
  59  *
  60  * When this flag is set, the encoder will not use the alt ref frame as a
  61  * predictor. When not set, the encoder will choose whether to use the
  62  * alt ref frame or not automatically.
  63  */
  64 #define VP8_EFLAG_NO_REF_ARF       (1<<21)
  65
  66
  67 /*!\brief Don't update the last frame
  68  *
  69  * When this flag is set, the encoder will not update the last frame with
  70  * the contents of the current frame.
  71  */
  72 #define VP8_EFLAG_NO_UPD_LAST      (1<<18)
  73
  74
  75 /*!\brief Don't update the golden frame
  76  *
  77  * When this flag is set, the encoder will not update the golden frame with
  78  * the contents of the current frame.
  79  */
  80 #define VP8_EFLAG_NO_UPD_GF        (1<<22)
  81
  82
  83 /*!\brief Don't update the alternate reference frame
  84  *
  85  * When this flag is set, the encoder will not update the alt ref frame with
  86  * the contents of the current frame.
  87  */
  88 #define VP8_EFLAG_NO_UPD_ARF       (1<<23)
  89
  90
  91 /*!\brief Force golden frame update
  92  *
  93  * When this flag is set, the encoder copy the contents of the current frame
  94  * to the golden frame buffer.
  95  */
  96 #define VP8_EFLAG_FORCE_GF         (1<<19)
  97
  98
  99 /*!\brief Force alternate reference frame update
 100  *
 101  * When this flag is set, the encoder copy the contents of the current frame
 102  * to the alternate reference frame buffer.
 103  */
 104 #define VP8_EFLAG_FORCE_ARF        (1<<24)
 105
 106
 107 /*!\brief Disable entropy update
 108  *
 109  * When this flag is set, the encoder will not update its internal entropy
 110  * model based on the entropy of this frame.
 111  */
 112 #define VP8_EFLAG_NO_UPD_ENTROPY   (1<<20)
 113
 114
 115 /*!\brief VP8 encoder control functions
 116  *
 117  * The set of macros define the control functions of VP8 encoder interface
 118  */
 119 enum vp8e_enc_control_id
 120 {
 121     VP8E_UPD_ENTROPY           = 5,  /**< control function to set mode of entropy update in encoder */
 122     VP8E_UPD_REFERENCE,              /**< control function to set reference update mode in encoder */
 123     VP8E_USE_REFERENCE,              /**< control function to set which reference frame encoder can use */
 124     VP8E_SET_ROI_MAP,                /**< control function to pass an ROI map to encoder */
 125     VP8E_SET_ACTIVEMAP,              /**< control function to pass an Active map to encoder */
 126     VP8E_SET_SCALEMODE         = 11, /**< control function to set encoder scaling mode */
 127     VP8E_SET_CPUUSED           = 13, /**< control function to set vp8 encoder cpuused  */
 128     VP8E_SET_ENABLEAUTOALTREF,       /**< control function to enable vp8 to automatic set and use altref frame */
 129     VP8E_SET_NOISE_SENSITIVITY,      /**< control function to set noise sensitivity */
 130     VP8E_SET_SHARPNESS,              /**< control function to set sharpness */
 131     VP8E_SET_STATIC_THRESHOLD,       /**< control function to set the threshold for macroblocks treated static */
 132     VP8E_SET_TOKEN_PARTITIONS,       /**< control function to set the number of token partitions  */
 133     VP8E_GET_LAST_QUANTIZER,         /**< return the quantizer chosen by the
 134                                           encoder for the last frame using the internal
 135                                           scale */
 136     VP8E_GET_LAST_QUANTIZER_64,      /**< return the quantizer chosen by the
 137                                           encoder for the last frame, using the 0..63
 138                                           scale as used by the rc_*_quantizer config
 139                                           parameters */
 140     VP8E_SET_ARNR_MAXFRAMES,         /**< control function to set the max number of frames blurred creating arf*/
 141     VP8E_SET_ARNR_STRENGTH ,         /**< control function to set the filter strength for the arf */
 142     VP8E_SET_ARNR_TYPE     ,         /**< control function to set the type of filter to use for the arf*/
 143     VP8E_SET_TUNING,                 /**< control function to set visual tuning */
 144     VP8E_SET_CQ_LEVEL,               /**< control function to set constrained quality level */
 145 };
 146
 147 /*!\brief vpx 1-D scaling mode
 148  *
 149  * This set of constants define 1-D vpx scaling modes
 150  */
 151 typedef enum vpx_scaling_mode_1d
 152 {
 153     VP8E_NORMAL      = 0,
 154     VP8E_FOURFIVE    = 1,
 155     VP8E_THREEFIVE   = 2,
 156     VP8E_ONETWO      = 3
 157 } VPX_SCALING_MODE;
 158
 159
 160 /*!\brief  vpx region of interest map
 161  *
 162  * These defines the data structures for the region of interest map
 163  *
 164  */
 165
 166 typedef struct vpx_roi_map
 167 {
 168     unsigned char *roi_map;      /**< specify an id between 0 and 3 for each 16x16 region within a frame */
 169     unsigned int   rows;         /**< number of rows */
 170     unsigned int   cols;         /**< number of cols */
 171     int     delta_q[4];          /**< quantizer delta [-64, 64] off baseline for regions with id between 0 and 3*/
 172     int     delta_lf[4];         /**< loop filter strength delta [-32, 32] for regions with id between 0 and 3 */
 173     unsigned int   static_threshold[4];/**< threshold for region to be treated as static */
 174 } vpx_roi_map_t;
 175
 176 /*!\brief  vpx active region map
 177  *
 178  * These defines the data structures for active region map
 179  *
 180  */
 181
 182
 183 typedef struct vpx_active_map
 184 {
 185     unsigned char  *active_map; /**< specify an on (1) or off (0) each 16x16 region within a frame */
 186     unsigned int    rows;       /**< number of rows */
 187     unsigned int    cols;       /**< number of cols */
 188 } vpx_active_map_t;
 189
 190 /*!\brief  vpx image scaling mode
 191  *
 192  * This defines the data structure for image scaling mode
 193  *
 194  */
 195 typedef struct vpx_scaling_mode
 196 {
 197     VPX_SCALING_MODE    h_scaling_mode;  /**< horizontal scaling mode */
 198     VPX_SCALING_MODE    v_scaling_mode;  /**< vertical scaling mode   */
 199 } vpx_scaling_mode_t;
 200
 201 /*!\brief VP8 encoding mode
 202  *
 203  * This defines VP8 encoding mode
 204  *
 205  */
 206 typedef enum
 207 {
 208     VP8_BEST_QUALITY_ENCODING,
 209     VP8_GOOD_QUALITY_ENCODING,
 210     VP8_REAL_TIME_ENCODING
 211 } vp8e_encoding_mode;
 212
 213 /*!\brief VP8 token partition mode
 214  *
 215  * This defines VP8 partitioning mode for compressed data, i.e., the number of
 216  * sub-streams in the bitstream. Used for parallelized decoding.
 217  *
 218  */
 219
 220 typedef enum
 221 {
 222     VP8_ONE_TOKENPARTITION   = 0,
 223     VP8_TWO_TOKENPARTITION   = 1,
 224     VP8_FOUR_TOKENPARTITION  = 2,
 225     VP8_EIGHT_TOKENPARTITION = 3,
 226 } vp8e_token_partitions;
 227
 228
 229 /*!\brief VP8 model tuning parameters
 230  *
 231  * Changes the encoder to tune for certain types of input material.
 232  *
 233  */
 234 typedef enum
 235 {
 236     VP8_TUNE_PSNR,
 237     VP8_TUNE_SSIM
 238 } vp8e_tuning;
 239
 240
 241 /*!\brief VP8 encoder control function parameter type
 242  *
 243  * Defines the data types that VP8E control functions take. Note that
 244  * additional common controls are defined in vp8.h
 245  *
 246  */
 247
 248
 249 /* These controls have been deprecated in favor of the flags parameter to
 250  * vpx_codec_encode(). See the definition of VP8_EFLAG_* above.
 251  */
 252 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_ENTROPY,            int)
 253 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_UPD_REFERENCE,          int)
 254 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_USE_REFERENCE,          int)
 255
 256 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP,            vpx_roi_map_t *)
 257 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP,          vpx_active_map_t *)
 258 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE,          vpx_scaling_mode_t *)
 259
 260 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED,            int)
 261 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF,   unsigned int)
 262 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY,  unsigned int)
 263 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS,          unsigned int)
 264 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD,   unsigned int)
 265 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS,   vp8e_token_partitions)
 266
 267 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES,     unsigned int)
 268 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH ,     unsigned int)
 269 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_TYPE     ,     unsigned int)
 270 VPX_CTRL_USE_TYPE(VP8E_SET_TUNING,             vp8e_tuning)
 271 VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL     ,      unsigned int)
 272
 273 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER,     int *)
 274 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64,  int *)
 275
 276 /*! @} - end defgroup vp8_encoder */
 277 #include "vpx/vpx_codec_impl_bottom.h"
 278 #endif