WebM VP8 Encoder
[VP8]


Data Structures

struct  vpx_roi_map
 vpx region of interest map More...
struct  vpx_active_map
 vpx active region map More...
struct  vpx_scaling_mode
 vpx image scaling mode More...

Files

file  vp8cx.h
 Provides definitions for using the VP8 encoder algorithm within the vpx Codec Interface.

Defines

#define VP8_EFLAG_NO_REF_LAST   (1<<16)
 Don't reference the last frame.
#define VP8_EFLAG_NO_REF_GF   (1<<17)
 Don't reference the golden frame.
#define VP8_EFLAG_NO_REF_ARF   (1<<21)
 Don't reference the alternate reference frame.
#define VP8_EFLAG_NO_UPD_LAST   (1<<18)
 Don't update the last frame.
#define VP8_EFLAG_NO_UPD_GF   (1<<22)
 Don't update the golden frame.
#define VP8_EFLAG_NO_UPD_ARF   (1<<23)
 Don't update the alternate reference frame.
#define VP8_EFLAG_FORCE_GF   (1<<19)
 Force golden frame update.
#define VP8_EFLAG_FORCE_ARF   (1<<24)
 Force alternate reference frame update.
#define VP8_EFLAG_NO_UPD_ENTROPY   (1<<20)
 Disable entropy update.

Typedefs

typedef enum vpx_scaling_mode_1d VPX_SCALING_MODE
 vpx 1-D scaling mode
typedef struct vpx_roi_map vpx_roi_map_t
 vpx region of interest map
typedef struct vpx_active_map vpx_active_map_t
 vpx active region map
typedef struct vpx_scaling_mode vpx_scaling_mode_t
 vpx image scaling mode

Enumerations

enum  vp8e_enc_control_id {
  VP8E_UPD_ENTROPY = 5, VP8E_UPD_REFERENCE, VP8E_USE_REFERENCE, VP8E_SET_ROI_MAP,
  VP8E_SET_ACTIVEMAP, VP8E_SET_SCALEMODE = 11, VP8E_SET_CPUUSED = 13, VP8E_SET_ENABLEAUTOALTREF,
  VP8E_SET_NOISE_SENSITIVITY, VP8E_SET_SHARPNESS, VP8E_SET_STATIC_THRESHOLD, VP8E_SET_TOKEN_PARTITIONS,
  VP8E_GET_LAST_QUANTIZER, VP8E_GET_LAST_QUANTIZER_64, VP8E_SET_ARNR_MAXFRAMES, VP8E_SET_ARNR_STRENGTH,
  VP8E_SET_ARNR_TYPE
}
 VP8 encoder control functions. More...
enum  vpx_scaling_mode_1d { VP8E_NORMAL = 0, VP8E_FOURFIVE = 1, VP8E_THREEFIVE = 2, VP8E_ONETWO = 3 }
 vpx 1-D scaling mode More...
enum  vp8e_encoding_mode { VP8_BEST_QUALITY_ENCODING, VP8_GOOD_QUALITY_ENCODING, VP8_REAL_TIME_ENCODING }
 VP8 encoding mode. More...
enum  vp8e_token_partitions { VP8_ONE_TOKENPARTITION = 0, VP8_TWO_TOKENPARTITION = 1, VP8_FOUR_TOKENPARTITION = 2, VP8_EIGHT_TOKENPARTITION = 3 }
 VP8 token partition mode. More...

Functions

vpx_codec_iface_tvpx_codec_vp8_cx (void)

Variables

vpx_codec_iface_t vpx_codec_vp8_cx_algo
 Algorithm interface for VP8.

Define Documentation

#define VP8_EFLAG_NO_REF_LAST   (1<<16)

Don't reference the last frame.

When this flag is set, the encoder will not use the last frame as a predictor. When not set, the encoder will choose whether to use the last frame or not automatically.

#define VP8_EFLAG_NO_REF_GF   (1<<17)

Don't reference the golden frame.

When this flag is set, the encoder will not use the golden frame as a predictor. When not set, the encoder will choose whether to use the golden frame or not automatically.

#define VP8_EFLAG_NO_REF_ARF   (1<<21)

Don't reference the alternate reference frame.

When this flag is set, the encoder will not use the alt ref frame as a predictor. When not set, the encoder will choose whether to use the alt ref frame or not automatically.

#define VP8_EFLAG_NO_UPD_LAST   (1<<18)

Don't update the last frame.

When this flag is set, the encoder will not update the last frame with the contents of the current frame.

#define VP8_EFLAG_NO_UPD_GF   (1<<22)

Don't update the golden frame.

When this flag is set, the encoder will not update the golden frame with the contents of the current frame.

#define VP8_EFLAG_NO_UPD_ARF   (1<<23)

Don't update the alternate reference frame.

When this flag is set, the encoder will not update the alt ref frame with the contents of the current frame.

#define VP8_EFLAG_FORCE_GF   (1<<19)

Force golden frame update.

When this flag is set, the encoder copy the contents of the current frame to the golden frame buffer.

#define VP8_EFLAG_FORCE_ARF   (1<<24)

Force alternate reference frame update.

When this flag is set, the encoder copy the contents of the current frame to the alternate reference frame buffer.

#define VP8_EFLAG_NO_UPD_ENTROPY   (1<<20)

Disable entropy update.

When this flag is set, the encoder will not update its internal entropy model based on the entropy of this frame.


Typedef Documentation

vpx 1-D scaling mode

This set of constants define 1-D vpx scaling modes

typedef struct vpx_roi_map vpx_roi_map_t

vpx region of interest map

These defines the data structures for the region of interest map

vpx active region map

These defines the data structures for active region map

vpx image scaling mode

This defines the data structure for image scaling mode


Enumeration Type Documentation

VP8 encoder control functions.

The set of macros define the control functions of VP8 encoder interface

Enumerator:
VP8E_UPD_ENTROPY  control function to set mode of entropy update in encoder
VP8E_UPD_REFERENCE  control function to set reference update mode in encoder
VP8E_USE_REFERENCE  control function to set which reference frame encoder can use
VP8E_SET_ROI_MAP  control function to pass an ROI map to encoder
VP8E_SET_ACTIVEMAP  control function to pass an Active map to encoder
VP8E_SET_SCALEMODE  control function to set encoder scaling mode
VP8E_SET_CPUUSED  control function to set vp8 encoder cpuused
VP8E_SET_ENABLEAUTOALTREF  control function to enable vp8 to automatic set and use altref frame
VP8E_SET_NOISE_SENSITIVITY  control function to set noise sensitivity
VP8E_SET_SHARPNESS  control function to set sharpness
VP8E_SET_STATIC_THRESHOLD  control function to set the threshold for macroblocks treated static
VP8E_SET_TOKEN_PARTITIONS  control function to set the number of token partitions
VP8E_GET_LAST_QUANTIZER  return the quantizer chosen by the encoder for the last frame using the internal scale
VP8E_GET_LAST_QUANTIZER_64  return the quantizer chosen by the encoder for the last frame, using the 0..63 scale as used by the rc_*_quantizer config parameters
VP8E_SET_ARNR_MAXFRAMES  control function to set the max number of frames blurred creating arf
VP8E_SET_ARNR_STRENGTH  control function to set the filter strength for the arf
VP8E_SET_ARNR_TYPE  control function to set the type of filter to use for the arf

vpx 1-D scaling mode

This set of constants define 1-D vpx scaling modes

VP8 encoding mode.

This defines VP8 encoding mode

VP8 token partition mode.

This defines VP8 partitioning mode for compressed data, i.e., the number of sub-streams in the bitstream. Used for parallelized decoding.


Variable Documentation

Algorithm interface for VP8.

This interface provides the capability to encode raw VP8 streams, as would be found in AVI files.


Generated on Wed Nov 24 14:32:45 2010 for WebM VP8 Codec SDK by  doxygen 1.5.9