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| file | vp8.h |
| | Provides controls common to both the VP8 encoder and decoder.
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| 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,
VP9_GET_REFERENCE = 128,
VP8_COMMON_CTRL_ID_MAX,
VP8_DECODER_CTRL_ID_START = 256
} |
| | Control functions. More...
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| 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,
VP8_DEBUG_TXT_DC_DIFF = 1 << 5,
VP8_DEBUG_TXT_RATE_INFO = 1 << 6,
VP8_MFQE = 1 << 10
} |
| | post process flags More...
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| |
| enum | vpx_ref_frame_type { VP8_LAST_FRAME = 1,
VP8_GOLD_FRAME = 2,
VP8_ALTR_FRAME = 4
} |
| | reference frame type More...
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| |
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:
- YUV 4:2:0 image format
- Macro-block based coding (16x16 luma plus two 8x8 chroma)
- 1/4 (1/8) pixel accuracy motion compensated prediction
- 4x4 DCT transform
- 128 level linear quantizer
- In loop deblocking filter
- Context-based entropy coding
◆ 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.
◆ vpx_ref_frame_type_t
reference frame type
The set of macros define the type of VP8 reference frames
◆ vpx_ref_frame_t
reference frame data struct
Define the data struct to access vp8 reference frames.
◆ vp9_ref_frame_t
VP9 specific reference frame data struct.
Define the data struct to access vp9 reference frames.
◆ vp8_com_control_id
Control functions.
The set of macros define the control functions of VP8 interface
| Enumerator |
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| VP8_SET_REFERENCE | pass in an external frame into decoder to be used as reference frame
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| VP8_COPY_REFERENCE | get a copy of reference frame from the decoder
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| VP8_SET_POSTPROC | set the decoder's post processing settings
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| VP8_SET_DBG_COLOR_REF_FRAME | - Deprecated:
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| VP8_SET_DBG_COLOR_MB_MODES | - Deprecated:
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| VP8_SET_DBG_COLOR_B_MODES | - Deprecated:
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| VP8_SET_DBG_DISPLAY_MV | - Deprecated:
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| VP9_GET_REFERENCE | get a pointer to a reference frame
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◆ vp8_postproc_level
post process flags
The set of macros define VP8 decoder post processing flags
| Enumerator |
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| VP8_DEBUG_TXT_FRAME_INFO | print frame information
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| VP8_DEBUG_TXT_MBLK_MODES | print macro block modes over each macro block
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| VP8_DEBUG_TXT_DC_DIFF | print dc diff for each macro block
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| VP8_DEBUG_TXT_RATE_INFO | print video rate info (encoder only)
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◆ vpx_ref_frame_type
reference frame type
The set of macros define the type of VP8 reference frames