From 7d9a6a0fc3a85787a75c98f4510136e00bc17af1 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Fri, 4 May 2007 03:34:21 +0000 Subject: Move some declarations into header Based on patch by Denis Fortin (cons (car '(fortin NOSPAM)) '(nerim net)) Originally committed as revision 8884 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/vc1.h | 328 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 328 insertions(+) (limited to 'libavcodec/vc1.h') diff --git a/libavcodec/vc1.h b/libavcodec/vc1.h index 68cb77b1d1..434eb4552e 100644 --- a/libavcodec/vc1.h +++ b/libavcodec/vc1.h @@ -34,3 +34,331 @@ enum VC1Code{ //@} #define IS_MARKER(x) (((x) & ~0xFF) == VC1_CODE_RES0) + +/** Available Profiles */ +//@{ +enum Profile { + PROFILE_SIMPLE, + PROFILE_MAIN, + PROFILE_COMPLEX, ///< TODO: WMV9 specific + PROFILE_ADVANCED +}; +//@} + +/** Sequence quantizer mode */ +//@{ +enum QuantMode { + QUANT_FRAME_IMPLICIT, ///< Implicitly specified at frame level + QUANT_FRAME_EXPLICIT, ///< Explicitly specified at frame level + QUANT_NON_UNIFORM, ///< Non-uniform quant used for all frames + QUANT_UNIFORM ///< Uniform quant used for all frames +}; +//@} + +/** Where quant can be changed */ +//@{ +enum DQProfile { + DQPROFILE_FOUR_EDGES, + DQPROFILE_DOUBLE_EDGES, + DQPROFILE_SINGLE_EDGE, + DQPROFILE_ALL_MBS +}; +//@} + +/** @name Where quant can be changed + */ +//@{ +enum DQSingleEdge { + DQSINGLE_BEDGE_LEFT, + DQSINGLE_BEDGE_TOP, + DQSINGLE_BEDGE_RIGHT, + DQSINGLE_BEDGE_BOTTOM +}; +//@} + +/** Which pair of edges is quantized with ALTPQUANT */ +//@{ +enum DQDoubleEdge { + DQDOUBLE_BEDGE_TOPLEFT, + DQDOUBLE_BEDGE_TOPRIGHT, + DQDOUBLE_BEDGE_BOTTOMRIGHT, + DQDOUBLE_BEDGE_BOTTOMLEFT +}; +//@} + +/** MV modes for P frames */ +//@{ +enum MVModes { + MV_PMODE_1MV_HPEL_BILIN, + MV_PMODE_1MV, + MV_PMODE_1MV_HPEL, + MV_PMODE_MIXED_MV, + MV_PMODE_INTENSITY_COMP +}; +//@} + +/** @name MV types for B frames */ +//@{ +enum BMVTypes { + BMV_TYPE_BACKWARD, + BMV_TYPE_FORWARD, + BMV_TYPE_INTERPOLATED +}; +//@} + +/** @name Block types for P/B frames */ +//@{ +enum TransformTypes { + TT_8X8, + TT_8X4_BOTTOM, + TT_8X4_TOP, + TT_8X4, //Both halves + TT_4X8_RIGHT, + TT_4X8_LEFT, + TT_4X8, //Both halves + TT_4X4 +}; +//@} + +/** Table for conversion between TTBLK and TTMB */ +static const int ttblk_to_tt[3][8] = { + { TT_8X4, TT_4X8, TT_8X8, TT_4X4, TT_8X4_TOP, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT }, + { TT_8X8, TT_4X8_RIGHT, TT_4X8_LEFT, TT_4X4, TT_8X4, TT_4X8, TT_8X4_BOTTOM, TT_8X4_TOP }, + { TT_8X8, TT_4X8, TT_4X4, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT, TT_8X4, TT_8X4_TOP } +}; + +static const int ttfrm_to_tt[4] = { TT_8X8, TT_8X4, TT_4X8, TT_4X4 }; + +/** MV P mode - the 5th element is only used for mode 1 */ +static const uint8_t mv_pmode_table[2][5] = { + { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_MIXED_MV }, + { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_1MV_HPEL_BILIN } +}; +static const uint8_t mv_pmode_table2[2][4] = { + { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV }, + { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_1MV_HPEL_BILIN } +}; + +/** One more frame type */ +#define BI_TYPE 7 + +static const int fps_nr[5] = { 24, 25, 30, 50, 60 }, + fps_dr[2] = { 1000, 1001 }; +static const uint8_t pquant_table[3][32] = { + { /* Implicit quantizer */ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 11, 12, + 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 31 + }, + { /* Explicit quantizer, pquantizer uniform */ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 + }, + { /* Explicit quantizer, pquantizer non-uniform */ + 0, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 31 + } +}; + +/** @name VC-1 VLC tables and defines + * @todo TODO move this into the context + */ +//@{ +#define VC1_BFRACTION_VLC_BITS 7 +static VLC vc1_bfraction_vlc; +#define VC1_IMODE_VLC_BITS 4 +static VLC vc1_imode_vlc; +#define VC1_NORM2_VLC_BITS 3 +static VLC vc1_norm2_vlc; +#define VC1_NORM6_VLC_BITS 9 +static VLC vc1_norm6_vlc; +/* Could be optimized, one table only needs 8 bits */ +#define VC1_TTMB_VLC_BITS 9 //12 +static VLC vc1_ttmb_vlc[3]; +#define VC1_MV_DIFF_VLC_BITS 9 //15 +static VLC vc1_mv_diff_vlc[4]; +#define VC1_CBPCY_P_VLC_BITS 9 //14 +static VLC vc1_cbpcy_p_vlc[4]; +#define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6 +static VLC vc1_4mv_block_pattern_vlc[4]; +#define VC1_TTBLK_VLC_BITS 5 +static VLC vc1_ttblk_vlc[3]; +#define VC1_SUBBLKPAT_VLC_BITS 6 +static VLC vc1_subblkpat_vlc[3]; + +static VLC vc1_ac_coeff_table[8]; +//@} + +enum CodingSet { + CS_HIGH_MOT_INTRA = 0, + CS_HIGH_MOT_INTER, + CS_LOW_MOT_INTRA, + CS_LOW_MOT_INTER, + CS_MID_RATE_INTRA, + CS_MID_RATE_INTER, + CS_HIGH_RATE_INTRA, + CS_HIGH_RATE_INTER +}; + +/** @name Overlap conditions for Advanced Profile */ +//@{ +enum COTypes { + CONDOVER_NONE = 0, + CONDOVER_ALL, + CONDOVER_SELECT +}; +//@} + + +/** The VC1 Context + * @fixme Change size wherever another size is more efficient + * Many members are only used for Advanced Profile + */ +typedef struct VC1Context{ + MpegEncContext s; + + int bits; + + /** Simple/Main Profile sequence header */ + //@{ + int res_sm; ///< reserved, 2b + int res_x8; ///< reserved + int multires; ///< frame-level RESPIC syntax element present + int res_fasttx; ///< reserved, always 1 + int res_transtab; ///< reserved, always 0 + int rangered; ///< RANGEREDFRM (range reduction) syntax element present + ///< at frame level + int res_rtm_flag; ///< reserved, set to 1 + int reserved; ///< reserved + //@} + + /** Advanced Profile */ + //@{ + int level; ///< 3bits, for Advanced/Simple Profile, provided by TS layer + int chromaformat; ///< 2bits, 2=4:2:0, only defined + int postprocflag; ///< Per-frame processing suggestion flag present + int broadcast; ///< TFF/RFF present + int interlace; ///< Progressive/interlaced (RPTFTM syntax element) + int tfcntrflag; ///< TFCNTR present + int panscanflag; ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present + int extended_dmv; ///< Additional extended dmv range at P/B frame-level + int color_prim; ///< 8bits, chroma coordinates of the color primaries + int transfer_char; ///< 8bits, Opto-electronic transfer characteristics + int matrix_coef; ///< 8bits, Color primaries->YCbCr transform matrix + int hrd_param_flag; ///< Presence of Hypothetical Reference + ///< Decoder parameters + int psf; ///< Progressive Segmented Frame + //@} + + /** Sequence header data for all Profiles + * TODO: choose between ints, uint8_ts and monobit flags + */ + //@{ + int profile; ///< 2bits, Profile + int frmrtq_postproc; ///< 3bits, + int bitrtq_postproc; ///< 5bits, quantized framerate-based postprocessing strength + int fastuvmc; ///< Rounding of qpel vector to hpel ? (not in Simple) + int extended_mv; ///< Ext MV in P/B (not in Simple) + int dquant; ///< How qscale varies with MBs, 2bits (not in Simple) + int vstransform; ///< variable-size [48]x[48] transform type + info + int overlap; ///< overlapped transforms in use + int quantizer_mode; ///< 2bits, quantizer mode used for sequence, see QUANT_* + int finterpflag; ///< INTERPFRM present + //@} + + /** Frame decoding info for all profiles */ + //@{ + uint8_t mv_mode; ///< MV coding monde + uint8_t mv_mode2; ///< Secondary MV coding mode (B frames) + int k_x; ///< Number of bits for MVs (depends on MV range) + int k_y; ///< Number of bits for MVs (depends on MV range) + int range_x, range_y; ///< MV range + uint8_t pq, altpq; ///< Current/alternate frame quantizer scale + /** pquant parameters */ + //@{ + uint8_t dquantfrm; + uint8_t dqprofile; + uint8_t dqsbedge; + uint8_t dqbilevel; + //@} + /** AC coding set indexes + * @see 8.1.1.10, p(1)10 + */ + //@{ + int c_ac_table_index; ///< Chroma index from ACFRM element + int y_ac_table_index; ///< Luma index from AC2FRM element + //@} + int ttfrm; ///< Transform type info present at frame level + uint8_t ttmbf; ///< Transform type flag + uint8_t ttblk4x4; ///< Value of ttblk which indicates a 4x4 transform + int codingset; ///< index of current table set from 11.8 to use for luma block decoding + int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding + int pqindex; ///< raw pqindex used in coding set selection + int a_avail, c_avail; + uint8_t *mb_type_base, *mb_type[3]; + + + /** Luma compensation parameters */ + //@{ + uint8_t lumscale; + uint8_t lumshift; + //@} + int16_t bfraction; ///< Relative position % anchors=> how to scale MVs + uint8_t halfpq; ///< Uniform quant over image and qp+.5 + uint8_t respic; ///< Frame-level flag for resized images + int buffer_fullness; ///< HRD info + /** Ranges: + * -# 0 -> [-64n 63.f] x [-32, 31.f] + * -# 1 -> [-128, 127.f] x [-64, 63.f] + * -# 2 -> [-512, 511.f] x [-128, 127.f] + * -# 3 -> [-1024, 1023.f] x [-256, 255.f] + */ + uint8_t mvrange; + uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use + VLC *cbpcy_vlc; ///< CBPCY VLC table + int tt_index; ///< Index for Transform Type tables + uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV) + uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs + int mv_type_is_raw; ///< mv type mb plane is not coded + int dmb_is_raw; ///< direct mb plane is raw + int skip_is_raw; ///< skip mb plane is not coded + uint8_t luty[256], lutuv[256]; // lookup tables used for intensity compensation + int use_ic; ///< use intensity compensation in B-frames + int rnd; ///< rounding control + + /** Frame decoding info for S/M profiles only */ + //@{ + uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128) + uint8_t interpfrm; + //@} + + /** Frame decoding info for Advanced profile */ + //@{ + uint8_t fcm; ///< 0->Progressive, 2->Frame-Interlace, 3->Field-Interlace + uint8_t numpanscanwin; + uint8_t tfcntr; + uint8_t rptfrm, tff, rff; + uint16_t topleftx; + uint16_t toplefty; + uint16_t bottomrightx; + uint16_t bottomrighty; + uint8_t uvsamp; + uint8_t postproc; + int hrd_num_leaky_buckets; + uint8_t bit_rate_exponent; + uint8_t buffer_size_exponent; + uint8_t* acpred_plane; ///< AC prediction flags bitplane + int acpred_is_raw; + uint8_t* over_flags_plane; ///< Overflags bitplane + int overflg_is_raw; + uint8_t condover; + uint16_t *hrd_rate, *hrd_buffer; + uint8_t *hrd_fullness; + uint8_t range_mapy_flag; + uint8_t range_mapuv_flag; + uint8_t range_mapy; + uint8_t range_mapuv; + //@} + + int p_frame_skipped; + int bi_type; +} VC1Context; -- cgit v1.2.3