WebM VP8 Codec SDK
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Modules | |
WebM VP8 Encoder | |
WebM VP8 Decoder | |
Files | |
file | vp8.h |
Provides controls common to both the VP8 encoder and decoder. | |
Data Structures | |
struct | vp8_postproc_cfg |
post process flags More... | |
struct | vpx_ref_frame |
reference frame data struct More... | |
Typedefs | |
typedef struct vp8_postproc_cfg | vp8_postproc_cfg_t |
post process flags | |
typedef enum vpx_ref_frame_type | vpx_ref_frame_type_t |
reference frame type | |
typedef struct vpx_ref_frame | vpx_ref_frame_t |
reference frame data struct | |
Enumerations | |
enum | vp8_com_control_id { VP8_SET_REFERENCE = 1, VP8_COPY_REFERENCE = 2, VP8_SET_POSTPROC = 3, VP8_SET_DBG_COLOR_REF_FRAME = 4, VP8_SET_DBG_COLOR_MB_MODES = 5, VP8_SET_DBG_COLOR_B_MODES = 6, VP8_SET_DBG_DISPLAY_MV = 7, VP8_COMMON_CTRL_ID_MAX, VP8_DECODER_CTRL_ID_START = 256 } |
Control functions. More... | |
enum | vp8_postproc_level { VP8_NOFILTERING = 0, VP8_DEBLOCK = 1<<0, VP8_DEMACROBLOCK = 1<<1, VP8_ADDNOISE = 1<<2, VP8_DEBUG_TXT_FRAME_INFO = 1<<3, VP8_DEBUG_TXT_MBLK_MODES = 1<<4, VP8_DEBUG_TXT_DC_DIFF = 1<<5, VP8_DEBUG_TXT_RATE_INFO = 1<<6 } |
post process flags More... | |
enum | vpx_ref_frame_type { VP8_LAST_FRAME = 1, VP8_GOLD_FRAME = 2, VP8_ALTR_FRAME = 4 } |
reference frame type More... |
VP8 is vpx's newest video compression algorithm that uses motion compensated prediction, Discrete Cosine Transform (DCT) coding of the prediction error signal and context dependent entropy coding techniques based on arithmetic principles. It features:
typedef struct vp8_postproc_cfg vp8_postproc_cfg_t |
post process flags
This define a structure that describe the post processing settings. For the best objective measure (using the PSNR metric) set post_proc_flag to VP8_DEBLOCK and deblocking_level to 1.
typedef enum vpx_ref_frame_type vpx_ref_frame_type_t |
reference frame type
The set of macros define the type of VP8 reference frames
typedef struct vpx_ref_frame vpx_ref_frame_t |
reference frame data struct
define the data struct to access vp8 reference frames
enum vp8_com_control_id |
Control functions.
The set of macros define the control functions of VP8 interface
enum vp8_postproc_level |
post process flags
The set of macros define VP8 decoder post processing flags
enum vpx_ref_frame_type |
reference frame type
The set of macros define the type of VP8 reference frames