[FFmpeg-cvslog] r8884 - in trunk/libavcodec: vc1.c vc1.h
kostya
subversion
Fri May 4 05:34:22 CEST 2007
Author: kostya
Date: Fri May 4 05:34:21 2007
New Revision: 8884
Log:
Move some declarations into header
Based on patch by Denis Fortin
(cons (car '(fortin NOSPAM)) '(nerim net))
Modified:
trunk/libavcodec/vc1.c
trunk/libavcodec/vc1.h
Modified: trunk/libavcodec/vc1.c
==============================================================================
--- trunk/libavcodec/vc1.c (original)
+++ trunk/libavcodec/vc1.c Fri May 4 05:34:21 2007
@@ -47,333 +47,6 @@ extern const uint16_t ff_msmp4_mb_i_tabl
#define AC_VLC_BITS 9
static const uint16_t table_mb_intra[64][2];
-/** 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;
/**
* Get unary code of limited length
Modified: trunk/libavcodec/vc1.h
==============================================================================
--- trunk/libavcodec/vc1.h (original)
+++ trunk/libavcodec/vc1.h Fri May 4 05:34:21 2007
@@ -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;
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