/*
- * VC-1 and WMV3 decoder
- * Copyright (c) 2006 Konstantin Shishkov
+ * VC-1 and WMV3 decoder common code
+ * Copyright (c) 2011 Mashiat Sarker Shakkhar
+ * Copyright (c) 2006-2007 Konstantin Shishkov
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
- * @file vc1.c
- * VC-1 and WMV3 decoder
+ * @file
+ * VC-1 and WMV3 decoder common code
*
*/
-#include "common.h"
+
+#include "internal.h"
#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
+#include "vc1.h"
#include "vc1data.h"
-#include "vc1acdata.h"
+#include "msmpeg4data.h"
+#include "unary.h"
+#include "simple_idct.h"
#undef NDEBUG
#include <assert.h>
-extern const uint32_t ff_table0_dc_lum[120][2], ff_table1_dc_lum[120][2];
-extern const uint32_t ff_table0_dc_chroma[120][2], ff_table1_dc_chroma[120][2];
-extern VLC ff_msmp4_dc_luma_vlc[2], ff_msmp4_dc_chroma_vlc[2];
-#define MB_INTRA_VLC_BITS 9
-extern VLC ff_msmp4_mb_i_vlc;
-extern const uint16_t ff_msmp4_mb_i_table[64][2];
-#define DC_VLC_BITS 9
-#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 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
- * @fixme FIXME Slow and ugly
- * @param gb GetBitContext
- * @param[in] stop The bitstop value (unary code of 1's or 0's)
- * @param[in] len Maximum length
- * @return Unary length/index
- */
-static int get_prefix(GetBitContext *gb, int stop, int len)
-{
-#if 1
- int i;
-
- for(i = 0; i < len && get_bits1(gb) != stop; i++);
- return i;
-/* int i = 0, tmp = !stop;
-
- while (i != len && tmp != stop)
- {
- tmp = get_bits(gb, 1);
- i++;
- }
- if (i == len && tmp != stop) return len+1;
- return i;*/
-#else
- unsigned int buf;
- int log;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf=GET_CACHE(re, gb); //Still not sure
- if (stop) buf = ~buf;
-
- log= av_log2(-buf); //FIXME: -?
- if (log < limit){
- LAST_SKIP_BITS(re, gb, log+1);
- CLOSE_READER(re, gb);
- return log;
- }
-
- LAST_SKIP_BITS(re, gb, limit);
- CLOSE_READER(re, gb);
- return limit;
-#endif
-}
-
-static inline int decode210(GetBitContext *gb){
- int n;
- n = get_bits1(gb);
- if (n == 1)
- return 0;
- else
- return 2 - get_bits1(gb);
-}
-
-/**
- * Init VC-1 specific tables and VC1Context members
- * @param v The VC1Context to initialize
- * @return Status
- */
-static int vc1_init_common(VC1Context *v)
-{
- static int done = 0;
- int i = 0;
-
- v->hrd_rate = v->hrd_buffer = NULL;
-
- /* VLC tables */
- if(!done)
- {
- done = 1;
- init_vlc(&vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
- vc1_bfraction_bits, 1, 1,
- vc1_bfraction_codes, 1, 1, 1);
- init_vlc(&vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
- vc1_norm2_bits, 1, 1,
- vc1_norm2_codes, 1, 1, 1);
- init_vlc(&vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
- vc1_norm6_bits, 1, 1,
- vc1_norm6_codes, 2, 2, 1);
- init_vlc(&vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
- vc1_imode_bits, 1, 1,
- vc1_imode_codes, 1, 1, 1);
- for (i=0; i<3; i++)
- {
- init_vlc(&vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
- vc1_ttmb_bits[i], 1, 1,
- vc1_ttmb_codes[i], 2, 2, 1);
- init_vlc(&vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
- vc1_ttblk_bits[i], 1, 1,
- vc1_ttblk_codes[i], 1, 1, 1);
- init_vlc(&vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
- vc1_subblkpat_bits[i], 1, 1,
- vc1_subblkpat_codes[i], 1, 1, 1);
- }
- for(i=0; i<4; i++)
- {
- init_vlc(&vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
- vc1_4mv_block_pattern_bits[i], 1, 1,
- vc1_4mv_block_pattern_codes[i], 1, 1, 1);
- init_vlc(&vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
- vc1_cbpcy_p_bits[i], 1, 1,
- vc1_cbpcy_p_codes[i], 2, 2, 1);
- init_vlc(&vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
- vc1_mv_diff_bits[i], 1, 1,
- vc1_mv_diff_codes[i], 2, 2, 1);
- }
- for(i=0; i<8; i++)
- init_vlc(&vc1_ac_coeff_table[i], AC_VLC_BITS, vc1_ac_sizes[i],
- &vc1_ac_tables[i][0][1], 8, 4,
- &vc1_ac_tables[i][0][0], 8, 4, 1);
- init_vlc(&ff_msmp4_mb_i_vlc, MB_INTRA_VLC_BITS, 64,
- &ff_msmp4_mb_i_table[0][1], 4, 2,
- &ff_msmp4_mb_i_table[0][0], 4, 2, 1);
- }
-
- /* Other defaults */
- v->pq = -1;
- v->mvrange = 0; /* 7.1.1.18, p80 */
-
- return 0;
-}
-
/***********************************************************************/
/**
- * @defgroup bitplane VC9 Bitplane decoding
+ * @name VC-1 Bitplane decoding
* @see 8.7, p56
* @{
*/
-/** @addtogroup bitplane
+/**
* Imode types
* @{
*/
* @param[in] height Height of this buffer
* @param[in] stride of this buffer
*/
-static void decode_rowskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
+static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
+ GetBitContext *gb)
+{
int x, y;
- for (y=0; y<height; y++){
- if (!get_bits(gb, 1)) //rowskip
+ for (y = 0; y < height; y++) {
+ if (!get_bits1(gb)) //rowskip
memset(plane, 0, width);
else
- for (x=0; x<width; x++)
- plane[x] = get_bits(gb, 1);
+ for (x = 0; x < width; x++)
+ plane[x] = get_bits1(gb);
plane += stride;
}
}
* @param[in] width Width of this buffer
* @param[in] height Height of this buffer
* @param[in] stride of this buffer
- * @fixme FIXME: Optimize
+ * @todo FIXME: Optimize
*/
-static void decode_colskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
+static void decode_colskip(uint8_t* plane, int width, int height, int stride,
+ GetBitContext *gb)
+{
int x, y;
- for (x=0; x<width; x++){
- if (!get_bits(gb, 1)) //colskip
- for (y=0; y<height; y++)
+ for (x = 0; x < width; x++) {
+ if (!get_bits1(gb)) //colskip
+ for (y = 0; y < height; y++)
plane[y*stride] = 0;
else
- for (y=0; y<height; y++)
- plane[y*stride] = get_bits(gb, 1);
+ for (y = 0; y < height; y++)
+ plane[y*stride] = get_bits1(gb);
plane ++;
}
}
/** Decode a bitplane's bits
- * @param bp Bitplane where to store the decode bits
+ * @param data bitplane where to store the decode bits
+ * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
* @param v VC-1 context for bit reading and logging
* @return Status
- * @fixme FIXME: Optimize
+ * @todo FIXME: Optimize
*/
static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
{
uint8_t invert, *planep = data;
int width, height, stride;
- width = v->s.mb_width;
- height = v->s.mb_height;
+ width = v->s.mb_width;
+ height = v->s.mb_height >> v->field_mode;
stride = v->s.mb_stride;
- invert = get_bits(gb, 1);
- imode = get_vlc2(gb, vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
+ invert = get_bits1(gb);
+ imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
*raw_flag = 0;
- switch (imode)
- {
+ switch (imode) {
case IMODE_RAW:
//Data is actually read in the MB layer (same for all tests == "raw")
*raw_flag = 1; //invert ignored
return invert;
case IMODE_DIFF2:
case IMODE_NORM2:
- if ((height * width) & 1)
- {
- *planep++ = get_bits(gb, 1);
- offset = 1;
+ if ((height * width) & 1) {
+ *planep++ = get_bits1(gb);
+ offset = 1;
}
- else offset = 0;
+ else
+ offset = 0;
// decode bitplane as one long line
for (y = offset; y < height * width; y += 2) {
- code = get_vlc2(gb, vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
+ code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
*planep++ = code & 1;
offset++;
- if(offset == width) {
- offset = 0;
+ if (offset == width) {
+ offset = 0;
planep += stride - width;
}
*planep++ = code >> 1;
offset++;
- if(offset == width) {
- offset = 0;
+ if (offset == width) {
+ offset = 0;
planep += stride - width;
}
}
break;
case IMODE_DIFF6:
case IMODE_NORM6:
- if(!(height % 3) && (width % 3)) { // use 2x3 decoding
- for(y = 0; y < height; y+= 3) {
- for(x = width & 1; x < width; x += 2) {
- code = get_vlc2(gb, vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
- if(code < 0){
+ if (!(height % 3) && (width % 3)) { // use 2x3 decoding
+ for (y = 0; y < height; y += 3) {
+ for (x = width & 1; x < width; x += 2) {
+ code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
+ if (code < 0) {
av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
return -1;
}
- planep[x + 0] = (code >> 0) & 1;
- planep[x + 1] = (code >> 1) & 1;
- planep[x + 0 + stride] = (code >> 2) & 1;
- planep[x + 1 + stride] = (code >> 3) & 1;
+ planep[x + 0] = (code >> 0) & 1;
+ planep[x + 1] = (code >> 1) & 1;
+ planep[x + 0 + stride] = (code >> 2) & 1;
+ planep[x + 1 + stride] = (code >> 3) & 1;
planep[x + 0 + stride * 2] = (code >> 4) & 1;
planep[x + 1 + stride * 2] = (code >> 5) & 1;
}
planep += stride * 3;
}
- if(width & 1) decode_colskip(data, 1, height, stride, &v->s.gb);
+ if (width & 1)
+ decode_colskip(data, 1, height, stride, &v->s.gb);
} else { // 3x2
planep += (height & 1) * stride;
- for(y = height & 1; y < height; y += 2) {
- for(x = width % 3; x < width; x += 3) {
- code = get_vlc2(gb, vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
- if(code < 0){
+ for (y = height & 1; y < height; y += 2) {
+ for (x = width % 3; x < width; x += 3) {
+ code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
+ if (code < 0) {
av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
return -1;
}
- planep[x + 0] = (code >> 0) & 1;
- planep[x + 1] = (code >> 1) & 1;
- planep[x + 2] = (code >> 2) & 1;
+ planep[x + 0] = (code >> 0) & 1;
+ planep[x + 1] = (code >> 1) & 1;
+ planep[x + 2] = (code >> 2) & 1;
planep[x + 0 + stride] = (code >> 3) & 1;
planep[x + 1 + stride] = (code >> 4) & 1;
planep[x + 2 + stride] = (code >> 5) & 1;
planep += stride * 2;
}
x = width % 3;
- if(x) decode_colskip(data , x, height , stride, &v->s.gb);
- if(height & 1) decode_rowskip(data+x, width - x, 1, stride, &v->s.gb);
+ if (x)
+ decode_colskip(data, x, height, stride, &v->s.gb);
+ if (height & 1)
+ decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
}
break;
case IMODE_ROWSKIP:
case IMODE_COLSKIP:
decode_colskip(data, width, height, stride, &v->s.gb);
break;
- default: break;
+ default:
+ break;
}
/* Applying diff operator */
- if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6)
- {
+ if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
planep = data;
planep[0] ^= invert;
- for (x=1; x<width; x++)
+ for (x = 1; x < width; x++)
planep[x] ^= planep[x-1];
- for (y=1; y<height; y++)
- {
+ for (y = 1; y < height; y++) {
planep += stride;
planep[0] ^= planep[-stride];
- for (x=1; x<width; x++)
- {
+ for (x = 1; x < width; x++) {
if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
else planep[x] ^= planep[x-1];
}
}
- }
- else if (invert)
- {
+ } else if (invert) {
planep = data;
- for (x=0; x<stride*height; x++) planep[x] = !planep[x]; //FIXME stride
+ for (x = 0; x < stride * height; x++)
+ planep[x] = !planep[x]; //FIXME stride
}
- return (imode<<1) + invert;
+ return (imode << 1) + invert;
}
/** @} */ //Bitplane group
int pqdiff;
//variable size
- if (v->dquant == 2)
- {
+ if (v->dquant == 2) {
pqdiff = get_bits(gb, 3);
- if (pqdiff == 7) v->altpq = get_bits(gb, 5);
- else v->altpq = v->pq + pqdiff + 1;
- }
- else
- {
- v->dquantfrm = get_bits(gb, 1);
- if ( v->dquantfrm )
- {
+ if (pqdiff == 7)
+ v->altpq = get_bits(gb, 5);
+ else
+ v->altpq = v->pq + pqdiff + 1;
+ } else {
+ v->dquantfrm = get_bits1(gb);
+ if (v->dquantfrm) {
v->dqprofile = get_bits(gb, 2);
- switch (v->dqprofile)
- {
+ switch (v->dqprofile) {
case DQPROFILE_SINGLE_EDGE:
case DQPROFILE_DOUBLE_EDGES:
v->dqsbedge = get_bits(gb, 2);
break;
case DQPROFILE_ALL_MBS:
- v->dqbilevel = get_bits(gb, 1);
- default: break; //Forbidden ?
+ v->dqbilevel = get_bits1(gb);
+ if (!v->dqbilevel)
+ v->halfpq = 0;
+ default:
+ break; //Forbidden ?
}
- if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)
- {
+ if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
pqdiff = get_bits(gb, 3);
- if (pqdiff == 7) v->altpq = get_bits(gb, 5);
- else v->altpq = v->pq + pqdiff + 1;
+ if (pqdiff == 7)
+ v->altpq = get_bits(gb, 5);
+ else
+ v->altpq = v->pq + pqdiff + 1;
}
}
}
return 0;
}
-/** Put block onto picture
- */
-static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
-{
- uint8_t *Y;
- int ys, us, vs;
- DSPContext *dsp = &v->s.dsp;
-
- if(v->rangeredfrm) {
- int i, j, k;
- for(k = 0; k < 6; k++)
- for(j = 0; j < 8; j++)
- for(i = 0; i < 8; i++)
- block[k][i + j*8] = ((block[k][i + j*8] - 128) << 1) + 128;
-
- }
- ys = v->s.current_picture.linesize[0];
- us = v->s.current_picture.linesize[1];
- vs = v->s.current_picture.linesize[2];
- Y = v->s.dest[0];
-
- dsp->put_pixels_clamped(block[0], Y, ys);
- dsp->put_pixels_clamped(block[1], Y + 8, ys);
- Y += ys * 8;
- dsp->put_pixels_clamped(block[2], Y, ys);
- dsp->put_pixels_clamped(block[3], Y + 8, ys);
-
- if(!(v->s.flags & CODEC_FLAG_GRAY)) {
- dsp->put_pixels_clamped(block[4], v->s.dest[1], us);
- dsp->put_pixels_clamped(block[5], v->s.dest[2], vs);
- }
-}
-
-/** Do motion compensation over 1 macroblock
- * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
- */
-static void vc1_mc_1mv(VC1Context *v, int dir)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY, *srcU, *srcV;
- int dxy, uvdxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
-
- if(!v->s.last_picture.data[0])return;
-
- mx = s->mv[dir][0][0];
- my = s->mv[dir][0][1];
-
- // store motion vectors for further use in B frames
- if(s->pict_type == P_TYPE) {
- s->current_picture.motion_val[1][s->block_index[0]][0] = mx;
- s->current_picture.motion_val[1][s->block_index[0]][1] = my;
- }
- uvmx = (mx + ((mx & 3) == 3)) >> 1;
- uvmy = (my + ((my & 3) == 3)) >> 1;
- if(!dir) {
- srcY = s->last_picture.data[0];
- srcU = s->last_picture.data[1];
- srcV = s->last_picture.data[2];
- } else {
- srcY = s->next_picture.data[0];
- srcU = s->next_picture.data[1];
- srcV = s->next_picture.data[2];
- }
-
- src_x = s->mb_x * 16 + (mx >> 2);
- src_y = s->mb_y * 16 + (my >> 2);
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- src_x = clip( src_x, -16, s->mb_width * 16);
- src_y = clip( src_y, -16, s->mb_height * 16);
- uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
-
- srcY += src_y * s->linesize + src_x;
- srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
-
- /* for grayscale we should not try to read from unknown area */
- if(s->flags & CODEC_FLAG_GRAY) {
- srcU = s->edge_emu_buffer + 18 * s->linesize;
- srcV = s->edge_emu_buffer + 18 * s->linesize;
- }
-
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
- || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
- uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
-
- srcY -= s->mspel * (1 + s->linesize);
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = uvbuf;
- srcV = uvbuf + 16;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17 + s->mspel*2; j++) {
- for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17 + s->mspel*2; j++) {
- for(i = 0; i < 17 + s->mspel*2; i++) src[i] = v->luty[src[i]];
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = v->lutuv[src[i]];
- src2[i] = v->lutuv[src2[i]];
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- srcY += s->mspel * (1 + s->linesize);
- }
-
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
-
- if(s->mspel) {
- dxy = ((my & 3) << 2) | (mx & 3);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
- srcY += s->linesize * 8;
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
- } else { // hpel mc - always used for luma
- dxy = (my & 2) | ((mx & 2) >> 1);
-
- if(!v->rnd)
- dsp->put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- else
- dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- }
-
- if(s->flags & CODEC_FLAG_GRAY) return;
- /* Chroma MC always uses qpel bilinear */
- uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
- uvmx = (uvmx&3)<<1;
- uvmy = (uvmy&3)<<1;
- if(!v->rnd){
- dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }else{
- dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }
-}
-
-/** Do motion compensation for 4-MV macroblock - luminance block
- */
-static void vc1_mc_4mv_luma(VC1Context *v, int n)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY;
- int dxy, mx, my, src_x, src_y;
- int off;
-
- if(!v->s.last_picture.data[0])return;
- mx = s->mv[0][n][0];
- my = s->mv[0][n][1];
- srcY = s->last_picture.data[0];
-
- off = s->linesize * 4 * (n&2) + (n&1) * 8;
-
- src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2);
- src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
-
- src_x = clip( src_x, -16, s->mb_width * 16);
- src_y = clip( src_y, -16, s->mb_height * 16);
-
- srcY += src_y * s->linesize + src_x;
-
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 8 - s->mspel*2
- || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 8 - s->mspel*2){
- srcY -= s->mspel * (1 + s->linesize);
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 9+s->mspel*2, 9+s->mspel*2,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src;
-
- src = srcY;
- for(j = 0; j < 9 + s->mspel*2; j++) {
- for(i = 0; i < 9 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src;
-
- src = srcY;
- for(j = 0; j < 9 + s->mspel*2; j++) {
- for(i = 0; i < 9 + s->mspel*2; i++) src[i] = v->luty[src[i]];
- src += s->linesize;
- }
- }
- srcY += s->mspel * (1 + s->linesize);
- }
-
- if(s->mspel) {
- dxy = ((my & 3) << 2) | (mx & 3);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
- } else { // hpel mc - always used for luma
- dxy = (my & 2) | ((mx & 2) >> 1);
- if(!v->rnd)
- dsp->put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
- else
- dsp->put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
- }
-}
-
-static inline int median4(int a, int b, int c, int d)
-{
- if(a < b) {
- if(c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
- else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
- } else {
- if(c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
- else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
- }
-}
-
-
-/** Do motion compensation for 4-MV macroblock - both chroma blocks
- */
-static void vc1_mc_4mv_chroma(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcU, *srcV;
- int uvdxy, uvmx, uvmy, uvsrc_x, uvsrc_y;
- int i, idx, tx = 0, ty = 0;
- int mvx[4], mvy[4], intra[4];
- static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
-
- if(!v->s.last_picture.data[0])return;
- if(s->flags & CODEC_FLAG_GRAY) return;
-
- for(i = 0; i < 4; i++) {
- mvx[i] = s->mv[0][i][0];
- mvy[i] = s->mv[0][i][1];
- intra[i] = v->mb_type[0][s->block_index[i]];
- }
-
- /* calculate chroma MV vector from four luma MVs */
- idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];
- if(!idx) { // all blocks are inter
- tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
- ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
- } else if(count[idx] == 1) { // 3 inter blocks
- switch(idx) {
- case 0x1:
- tx = mid_pred(mvx[1], mvx[2], mvx[3]);
- ty = mid_pred(mvy[1], mvy[2], mvy[3]);
- break;
- case 0x2:
- tx = mid_pred(mvx[0], mvx[2], mvx[3]);
- ty = mid_pred(mvy[0], mvy[2], mvy[3]);
- break;
- case 0x4:
- tx = mid_pred(mvx[0], mvx[1], mvx[3]);
- ty = mid_pred(mvy[0], mvy[1], mvy[3]);
- break;
- case 0x8:
- tx = mid_pred(mvx[0], mvx[1], mvx[2]);
- ty = mid_pred(mvy[0], mvy[1], mvy[2]);
- break;
- }
- } else if(count[idx] == 2) {
- int t1 = 0, t2 = 0;
- for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}
- for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
- tx = (mvx[t1] + mvx[t2]) / 2;
- ty = (mvy[t1] + mvy[t2]) / 2;
- } else
- return; //no need to do MC for inter blocks
-
- s->current_picture.motion_val[1][s->block_index[0]][0] = tx;
- s->current_picture.motion_val[1][s->block_index[0]][1] = ty;
- uvmx = (tx + ((tx&3) == 3)) >> 1;
- uvmy = (ty + ((ty&3) == 3)) >> 1;
-
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
- srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
- || (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
- ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = s->edge_emu_buffer;
- srcV = s->edge_emu_buffer + 16;
-
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = v->lutuv[src[i]];
- src2[i] = v->lutuv[src2[i]];
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- }
-
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
-
- /* Chroma MC always uses qpel bilinear */
- uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
- uvmx = (uvmx&3)<<1;
- uvmy = (uvmy&3)<<1;
- if(!v->rnd){
- dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }else{
- dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }
-}
-
static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
/**
* @param gb GetBit context initialized from Codec context extra_data
* @return Status
*/
-static int decode_sequence_header(AVCodecContext *avctx, GetBitContext *gb)
+int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
{
- VC1Context *v = avctx->priv_data;
-
av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits(gb, 32));
v->profile = get_bits(gb, 2);
- if (v->profile == 2)
- {
- av_log(avctx, AV_LOG_ERROR, "Profile value 2 is forbidden (and WMV3 Complex Profile is unsupported)\n");
- return -1;
+ if (v->profile == PROFILE_COMPLEX) {
+ av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
}
- if (v->profile == PROFILE_ADVANCED)
- {
+ if (v->profile == PROFILE_ADVANCED) {
+ v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
+ v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
return decode_sequence_header_adv(v, gb);
- }
- else
- {
- v->res_sm = get_bits(gb, 2); //reserved
- if (v->res_sm)
- {
+ } else {
+ v->zz_8x4 = ff_wmv2_scantableA;
+ v->zz_4x8 = ff_wmv2_scantableB;
+ v->res_y411 = get_bits1(gb);
+ v->res_sprite = get_bits1(gb);
+ if (v->res_y411) {
av_log(avctx, AV_LOG_ERROR,
- "Reserved RES_SM=%i is forbidden\n", v->res_sm);
+ "Old interlaced mode is not supported\n");
return -1;
}
}
v->frmrtq_postproc = get_bits(gb, 3); //common
// (bitrate-32kbps)/64kbps
v->bitrtq_postproc = get_bits(gb, 5); //common
- v->s.loop_filter = get_bits(gb, 1); //common
- if(v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE)
- {
- av_log(avctx, AV_LOG_ERROR,
- "LOOPFILTER shell not be enabled in simple profile\n");
- }
-
- v->res_x8 = get_bits(gb, 1); //reserved
- if (v->res_x8)
- {
- av_log(avctx, AV_LOG_ERROR,
- "1 for reserved RES_X8 is forbidden\n");
- //return -1;
- }
- v->multires = get_bits(gb, 1);
- v->res_fasttx = get_bits(gb, 1);
- if (!v->res_fasttx)
- {
+ v->s.loop_filter = get_bits1(gb); //common
+ if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
av_log(avctx, AV_LOG_ERROR,
- "0 for reserved RES_FASTTX is forbidden\n");
- //return -1;
- }
-
- v->fastuvmc = get_bits(gb, 1); //common
- if (!v->profile && !v->fastuvmc)
- {
+ "LOOPFILTER shall not be enabled in Simple Profile\n");
+ }
+ if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
+ v->s.loop_filter = 0;
+
+ v->res_x8 = get_bits1(gb); //reserved
+ v->multires = get_bits1(gb);
+ v->res_fasttx = get_bits1(gb);
+ if (!v->res_fasttx) {
+ v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
+ v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
+ v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
+ v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
+ v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
+ v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
+ v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
+ v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
+ }
+
+ v->fastuvmc = get_bits1(gb); //common
+ if (!v->profile && !v->fastuvmc) {
av_log(avctx, AV_LOG_ERROR,
"FASTUVMC unavailable in Simple Profile\n");
return -1;
}
- v->extended_mv = get_bits(gb, 1); //common
+ v->extended_mv = get_bits1(gb); //common
if (!v->profile && v->extended_mv)
{
av_log(avctx, AV_LOG_ERROR,
"Extended MVs unavailable in Simple Profile\n");
return -1;
}
- v->dquant = get_bits(gb, 2); //common
- v->vstransform = get_bits(gb, 1); //common
+ v->dquant = get_bits(gb, 2); //common
+ v->vstransform = get_bits1(gb); //common
- v->res_transtab = get_bits(gb, 1);
+ v->res_transtab = get_bits1(gb);
if (v->res_transtab)
{
av_log(avctx, AV_LOG_ERROR,
return -1;
}
- v->overlap = get_bits(gb, 1); //common
+ v->overlap = get_bits1(gb); //common
- v->s.resync_marker = get_bits(gb, 1);
- v->rangered = get_bits(gb, 1);
- if (v->rangered && v->profile == PROFILE_SIMPLE)
- {
+ v->s.resync_marker = get_bits1(gb);
+ v->rangered = get_bits1(gb);
+ if (v->rangered && v->profile == PROFILE_SIMPLE) {
av_log(avctx, AV_LOG_INFO,
- "RANGERED should be set to 0 in simple profile\n");
+ "RANGERED should be set to 0 in Simple Profile\n");
}
v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
v->quantizer_mode = get_bits(gb, 2); //common
- v->finterpflag = get_bits(gb, 1); //common
- v->res_rtm_flag = get_bits(gb, 1); //reserved
- if (!v->res_rtm_flag)
- {
+ v->finterpflag = get_bits1(gb); //common
+
+ if (v->res_sprite) {
+ v->s.avctx->width = v->s.avctx->coded_width = get_bits(gb, 11);
+ v->s.avctx->height = v->s.avctx->coded_height = get_bits(gb, 11);
+ skip_bits(gb, 5); //frame rate
+ v->res_x8 = get_bits1(gb);
+ if (get_bits1(gb)) { // something to do with DC VLC selection
+ av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
+ return -1;
+ }
+ skip_bits(gb, 3); //slice code
+ v->res_rtm_flag = 0;
+ } else {
+ v->res_rtm_flag = get_bits1(gb); //reserved
+ }
+ if (!v->res_rtm_flag) {
// av_log(avctx, AV_LOG_ERROR,
// "0 for reserved RES_RTM_FLAG is forbidden\n");
av_log(avctx, AV_LOG_ERROR,
- "Old WMV3 version detected, only I-frames will be decoded\n");
+ "Old WMV3 version detected, some frames may be decoded incorrectly\n");
//return -1;
}
+ //TODO: figure out what they mean (always 0x402F)
+ if (!v->res_fasttx)
+ skip_bits(gb, 16);
av_log(avctx, AV_LOG_DEBUG,
- "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
- "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
- "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
- "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
- v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
- v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
- v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
- v->dquant, v->quantizer_mode, avctx->max_b_frames
- );
+ "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
+ "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
+ "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
+ v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
+ v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
+ v->dquant, v->quantizer_mode, avctx->max_b_frames);
return 0;
}
{
v->res_rtm_flag = 1;
v->level = get_bits(gb, 3);
- if(v->level >= 5)
- {
+ if (v->level >= 5) {
av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
}
v->chromaformat = get_bits(gb, 2);
- if (v->chromaformat != 1)
- {
+ if (v->chromaformat != 1) {
av_log(v->s.avctx, AV_LOG_ERROR,
"Only 4:2:0 chroma format supported\n");
return -1;
}
// (fps-2)/4 (->30)
- v->frmrtq_postproc = get_bits(gb, 3); //common
+ v->frmrtq_postproc = get_bits(gb, 3); //common
// (bitrate-32kbps)/64kbps
- v->bitrtq_postproc = get_bits(gb, 5); //common
- v->postprocflag = get_bits(gb, 1); //common
+ v->bitrtq_postproc = get_bits(gb, 5); //common
+ v->postprocflag = get_bits1(gb); //common
- v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
+ v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
- v->broadcast = get_bits1(gb);
- v->interlace = get_bits1(gb);
- v->tfcntrflag = get_bits1(gb);
- v->finterpflag = get_bits1(gb);
- get_bits1(gb); // reserved
+ v->s.avctx->width = v->s.avctx->coded_width;
+ v->s.avctx->height = v->s.avctx->coded_height;
+ v->broadcast = get_bits1(gb);
+ v->interlace = get_bits1(gb);
+ v->tfcntrflag = get_bits1(gb);
+ v->finterpflag = get_bits1(gb);
+ skip_bits1(gb); // reserved
+
+ av_log(v->s.avctx, AV_LOG_DEBUG,
+ "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
+ "TFCTRflag=%i, FINTERPflag=%i\n",
+ v->level, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
+ v->tfcntrflag, v->finterpflag);
+
v->psf = get_bits1(gb);
- if(v->psf) { //PsF, 6.1.13
+ if (v->psf) { //PsF, 6.1.13
av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
return -1;
}
- if(get_bits1(gb)) { //Display Info - decoding is not affected by it
+ v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
+ if (get_bits1(gb)) { //Display Info - decoding is not affected by it
int w, h, ar = 0;
- av_log(v->s.avctx, AV_LOG_INFO, "Display extended info:\n");
- w = get_bits(gb, 14);
- h = get_bits(gb, 14);
- av_log(v->s.avctx, AV_LOG_INFO, "Display dimensions: %ix%i\n", w, h);
- //TODO: store aspect ratio in AVCodecContext
- if(get_bits1(gb))
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
+ w = get_bits(gb, 14) + 1;
+ h = get_bits(gb, 14) + 1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
+ if (get_bits1(gb))
ar = get_bits(gb, 4);
- if(ar == 15) {
- w = get_bits(gb, 8);
- h = get_bits(gb, 8);
- }
-
- if(get_bits1(gb)){ //framerate stuff
- if(get_bits1(gb)) {
- get_bits(gb, 16);
+ if (ar && ar < 14) {
+ v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
+ } else if (ar == 15) {
+ w = get_bits(gb, 8) + 1;
+ h = get_bits(gb, 8) + 1;
+ v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
+ } else {
+ av_reduce(&v->s.avctx->sample_aspect_ratio.num,
+ &v->s.avctx->sample_aspect_ratio.den,
+ v->s.avctx->height * w,
+ v->s.avctx->width * h,
+ 1 << 30);
+ }
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
+ v->s.avctx->sample_aspect_ratio.num,
+ v->s.avctx->sample_aspect_ratio.den);
+
+ if (get_bits1(gb)) { //framerate stuff
+ if (get_bits1(gb)) {
+ v->s.avctx->time_base.num = 32;
+ v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
} else {
- get_bits(gb, 8);
- get_bits(gb, 4);
+ int nr, dr;
+ nr = get_bits(gb, 8);
+ dr = get_bits(gb, 4);
+ if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
+ v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
+ v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
+ }
+ }
+ if (v->broadcast) { // Pulldown may be present
+ v->s.avctx->time_base.den *= 2;
+ v->s.avctx->ticks_per_frame = 2;
}
}
- if(get_bits1(gb)){
- v->color_prim = get_bits(gb, 8);
+ if (get_bits1(gb)) {
+ v->color_prim = get_bits(gb, 8);
v->transfer_char = get_bits(gb, 8);
- v->matrix_coef = get_bits(gb, 8);
+ v->matrix_coef = get_bits(gb, 8);
}
}
v->hrd_param_flag = get_bits1(gb);
- if(v->hrd_param_flag) {
+ if (v->hrd_param_flag) {
int i;
v->hrd_num_leaky_buckets = get_bits(gb, 5);
- get_bits(gb, 4); //bitrate exponent
- get_bits(gb, 4); //buffer size exponent
- for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
- get_bits(gb, 16); //hrd_rate[n]
- get_bits(gb, 16); //hrd_buffer[n]
+ skip_bits(gb, 4); //bitrate exponent
+ skip_bits(gb, 4); //buffer size exponent
+ for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ skip_bits(gb, 16); //hrd_rate[n]
+ skip_bits(gb, 16); //hrd_buffer[n]
}
}
return 0;
}
-static int decode_entry_point(AVCodecContext *avctx, GetBitContext *gb)
+int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
{
- VC1Context *v = avctx->priv_data;
int i;
av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
- get_bits1(gb); // broken link
- avctx->max_b_frames = 1 - get_bits1(gb); // 'closed entry' also signalize possible B-frames
- v->panscanflag = get_bits1(gb);
- get_bits1(gb); // refdist flag
- v->s.loop_filter = get_bits1(gb);
- v->fastuvmc = get_bits1(gb);
- v->extended_mv = get_bits1(gb);
- v->dquant = get_bits(gb, 2);
- v->vstransform = get_bits1(gb);
- v->overlap = get_bits1(gb);
+ v->broken_link = get_bits1(gb);
+ v->closed_entry = get_bits1(gb);
+ v->panscanflag = get_bits1(gb);
+ v->refdist_flag = get_bits1(gb);
+ v->s.loop_filter = get_bits1(gb);
+ v->fastuvmc = get_bits1(gb);
+ v->extended_mv = get_bits1(gb);
+ v->dquant = get_bits(gb, 2);
+ v->vstransform = get_bits1(gb);
+ v->overlap = get_bits1(gb);
v->quantizer_mode = get_bits(gb, 2);
- if(v->hrd_param_flag){
- for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
- get_bits(gb, 8); //hrd_full[n]
+ if (v->hrd_param_flag) {
+ for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ skip_bits(gb, 8); //hrd_full[n]
}
}
- if(get_bits1(gb)){
- avctx->coded_width = (get_bits(gb, 12)+1)<<1;
- avctx->coded_height = (get_bits(gb, 12)+1)<<1;
+ if (get_bits1(gb)) {
+ avctx->width = avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
+ avctx->height = avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
}
- if(v->extended_mv)
+ if (v->extended_mv)
v->extended_dmv = get_bits1(gb);
- if(get_bits1(gb)) {
+ if ((v->range_mapy_flag = get_bits1(gb))) {
av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
- skip_bits(gb, 3); // Y range, ignored for now
+ v->range_mapy = get_bits(gb, 3);
}
- if(get_bits1(gb)) {
+ if ((v->range_mapuv_flag = get_bits1(gb))) {
av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
- skip_bits(gb, 3); // UV range, ignored for now
+ v->range_mapuv = get_bits(gb, 3);
}
+ av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
+ "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
+ "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
+ "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
+ v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
+ v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
+
return 0;
}
-static int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
+int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
{
int pqindex, lowquant, status;
- if(v->finterpflag) v->interpfrm = get_bits(gb, 1);
+ if (v->finterpflag)
+ v->interpfrm = get_bits1(gb);
skip_bits(gb, 2); //framecnt unused
v->rangeredfrm = 0;
- if (v->rangered) v->rangeredfrm = get_bits(gb, 1);
- v->s.pict_type = get_bits(gb, 1);
+ if (v->rangered)
+ v->rangeredfrm = get_bits1(gb);
+ v->s.pict_type = get_bits1(gb);
if (v->s.avctx->max_b_frames) {
if (!v->s.pict_type) {
- if (get_bits(gb, 1)) v->s.pict_type = I_TYPE;
- else v->s.pict_type = B_TYPE;
- } else v->s.pict_type = P_TYPE;
- } else v->s.pict_type = v->s.pict_type ? P_TYPE : I_TYPE;
+ if (get_bits1(gb))
+ v->s.pict_type = AV_PICTURE_TYPE_I;
+ else
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ } else
+ v->s.pict_type = AV_PICTURE_TYPE_P;
+ } else
+ v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
v->bi_type = 0;
- if(v->s.pict_type == B_TYPE) {
- v->bfraction = get_vlc2(gb, vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
- v->bfraction = vc1_bfraction_lut[v->bfraction];
- if(v->bfraction == 0) {
- v->s.pict_type = BI_TYPE;
+ if (v->s.pict_type == AV_PICTURE_TYPE_B) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ if (v->bfraction == 0) {
+ v->s.pict_type = AV_PICTURE_TYPE_BI;
}
}
- if(v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
- get_bits(gb, 7); // skip buffer fullness
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
+ skip_bits(gb, 7); // skip buffer fullness
+
+ if (v->parse_only)
+ return 0;
/* calculate RND */
- if(v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
v->rnd = 1;
- if(v->s.pict_type == P_TYPE)
+ if (v->s.pict_type == AV_PICTURE_TYPE_P)
v->rnd ^= 1;
/* Quantizer stuff */
pqindex = get_bits(gb, 5);
+ if (!pqindex)
+ return -1;
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pq = pquant_table[0][pqindex];
+ v->pq = ff_vc1_pquant_table[0][pqindex];
else
- v->pq = pquant_table[1][pqindex];
+ v->pq = ff_vc1_pquant_table[1][pqindex];
v->pquantizer = 1;
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
if (v->quantizer_mode == QUANT_NON_UNIFORM)
v->pquantizer = 0;
v->pqindex = pqindex;
- if (pqindex < 9) v->halfpq = get_bits(gb, 1);
- else v->halfpq = 0;
+ if (pqindex < 9)
+ v->halfpq = get_bits1(gb);
+ else
+ v->halfpq = 0;
if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
- v->pquantizer = get_bits(gb, 1);
+ v->pquantizer = get_bits1(gb);
v->dquantfrm = 0;
- if (v->extended_mv == 1) v->mvrange = get_prefix(gb, 0, 3);
+ if (v->extended_mv == 1)
+ v->mvrange = get_unary(gb, 0, 3);
v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
v->range_x = 1 << (v->k_x - 1);
v->range_y = 1 << (v->k_y - 1);
- if (v->profile == PROFILE_ADVANCED)
- {
- if (v->postprocflag) v->postproc = get_bits(gb, 1);
- }
- else
- if (v->multires && v->s.pict_type != B_TYPE) v->respic = get_bits(gb, 2);
+ if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
+ v->respic = get_bits(gb, 2);
+ if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
+ v->x8_type = get_bits1(gb);
+ } else
+ v->x8_type = 0;
//av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
-// (v->s.pict_type == P_TYPE) ? 'P' : ((v->s.pict_type == I_TYPE) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
+// (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
- switch(v->s.pict_type) {
- case P_TYPE:
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
+ v->use_ic = 0;
+
+ switch (v->s.pict_type) {
+ case AV_PICTURE_TYPE_P:
+ if (v->pq < 5) v->tt_index = 0;
+ else if (v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
- if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- {
+ v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
int scale, shift, i;
- v->mv_mode2 = mv_pmode_table2[lowquant][get_prefix(gb, 1, 3)];
+ v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
v->lumscale = get_bits(gb, 6);
v->lumshift = get_bits(gb, 6);
+ v->use_ic = 1;
/* fill lookup tables for intensity compensation */
- if(!v->lumscale) {
+ if (!v->lumscale) {
scale = -64;
shift = (255 - v->lumshift * 2) << 6;
- if(v->lumshift > 31)
+ if (v->lumshift > 31)
shift += 128 << 6;
} else {
scale = v->lumscale + 32;
- if(v->lumshift > 31)
+ if (v->lumshift > 31)
shift = (v->lumshift - 64) << 6;
else
shift = v->lumshift << 6;
}
- for(i = 0; i < 256; i++) {
- v->luty[i] = clip_uint8((scale * i + shift + 32) >> 6);
- v->lutuv[i] = clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ for (i = 0; i < 256; i++) {
+ v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
}
}
- if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
+ v->qs_last = v->s.quarter_sample;
+ if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
v->s.quarter_sample = 0;
- else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
v->s.quarter_sample = 0;
else
v->s.quarter_sample = 1;
v->s.quarter_sample = 1;
v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
- if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
- v->mv_mode2 == MV_PMODE_MIXED_MV)
- || v->mv_mode == MV_PMODE_MIXED_MV)
- {
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV) ||
+ v->mv_mode == MV_PMODE_MIXED_MV) {
status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
} else {
memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
}
status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
/* Hopefully this is correct for P frames */
- v->s.mv_table_index = get_bits(gb, 2); //but using vc1_ tables
- v->cbpcy_vlc = &vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
- if (v->dquant)
- {
+ if (v->dquant) {
av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
vop_dquant_decoding(v);
}
v->ttfrm = 0; //FIXME Is that so ?
- if (v->vstransform)
- {
- v->ttmbf = get_bits(gb, 1);
- if (v->ttmbf)
- {
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
v->ttfrm = TT_8X8;
}
break;
- case B_TYPE:
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
+ case AV_PICTURE_TYPE_B:
+ if (v->pq < 5) v->tt_index = 0;
+ else if (v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
- lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->qs_last = v->s.quarter_sample;
v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
- v->s.mspel = v->s.quarter_sample;
+ v->s.mspel = v->s.quarter_sample;
status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
v->s.mv_table_index = get_bits(gb, 2);
- v->cbpcy_vlc = &vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
- if (v->dquant)
- {
+ if (v->dquant) {
av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
vop_dquant_decoding(v);
}
v->ttfrm = 0;
- if (v->vstransform)
- {
- v->ttmbf = get_bits(gb, 1);
- if (v->ttmbf)
- {
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
break;
}
- /* AC Syntax */
- v->c_ac_table_index = decode012(gb);
- if (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
- {
- v->y_ac_table_index = decode012(gb);
+ if (!v->x8_type) {
+ /* AC Syntax */
+ v->c_ac_table_index = decode012(gb);
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->y_ac_table_index = decode012(gb);
+ }
+ /* DC Syntax */
+ v->s.dc_table_index = get_bits1(gb);
}
- /* DC Syntax */
- v->s.dc_table_index = get_bits(gb, 1);
- if(v->s.pict_type == BI_TYPE) {
- v->s.pict_type = B_TYPE;
- v->bi_type = 1;
+ if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ v->bi_type = 1;
}
return 0;
}
-static int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
+/* fill lookup tables for intensity compensation */
+#define INIT_LUT(lumscale, lumshift, luty, lutuv) \
+ if (!lumscale) { \
+ scale = -64; \
+ shift = (255 - lumshift * 2) << 6; \
+ if (lumshift > 31) \
+ shift += 128 << 6; \
+ } else { \
+ scale = lumscale + 32; \
+ if (lumshift > 31) \
+ shift = (lumshift - 64) << 6; \
+ else \
+ shift = lumshift << 6; \
+ } \
+ for (i = 0; i < 256; i++) { \
+ luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
+ lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
+ }
+
+int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
{
- int fcm;
int pqindex, lowquant;
int status;
+ int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
+ int scale, shift, i; /* for initializing LUT for intensity compensation */
v->p_frame_skipped = 0;
+ if (v->second_field) {
+ v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+ if (v->fptype & 4)
+ v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
+ v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
+ if (!v->pic_header_flag)
+ goto parse_common_info;
+ }
+
+ v->field_mode = 0;
+ if (v->interlace) {
+ v->fcm = decode012(gb);
+ if (v->fcm) {
+ if (v->fcm == ILACE_FIELD)
+ v->field_mode = 1;
+ if (!v->warn_interlaced++)
+ av_log(v->s.avctx, AV_LOG_ERROR,
+ "Interlaced frames/fields support is incomplete\n");
+ }
+ } else {
+ v->fcm = PROGRESSIVE;
+ }
- if(v->interlace)
- fcm = decode012(gb);
- switch(get_prefix(gb, 0, 4)) {
- case 0:
- v->s.pict_type = P_TYPE;
- break;
- case 1:
- v->s.pict_type = B_TYPE;
- return -1;
-// break;
- case 2:
- v->s.pict_type = I_TYPE;
- break;
- case 3:
- v->s.pict_type = BI_TYPE;
- break;
- case 4:
- v->s.pict_type = P_TYPE; // skipped pic
- v->p_frame_skipped = 1;
- return 0;
+ if (v->field_mode) {
+ v->fptype = get_bits(gb, 3);
+ v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+ if (v->fptype & 4) // B-picture
+ v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
+ } else {
+ switch (get_unary(gb, 0, 4)) {
+ case 0:
+ v->s.pict_type = AV_PICTURE_TYPE_P;
+ break;
+ case 1:
+ v->s.pict_type = AV_PICTURE_TYPE_B;
+ break;
+ case 2:
+ v->s.pict_type = AV_PICTURE_TYPE_I;
+ break;
+ case 3:
+ v->s.pict_type = AV_PICTURE_TYPE_BI;
+ break;
+ case 4:
+ v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
+ v->p_frame_skipped = 1;
+ break;
+ }
}
- if(v->tfcntrflag)
- get_bits(gb, 8);
- if(v->broadcast) {
- if(!v->interlace || v->panscanflag) {
- get_bits(gb, 2);
+ if (v->tfcntrflag)
+ skip_bits(gb, 8);
+ if (v->broadcast) {
+ if (!v->interlace || v->psf) {
+ v->rptfrm = get_bits(gb, 2);
} else {
- get_bits1(gb);
- get_bits1(gb);
+ v->tff = get_bits1(gb);
+ v->rff = get_bits1(gb);
}
}
- if(v->panscanflag) {
+ if (v->panscanflag) {
+ av_log_missing_feature(v->s.avctx, "Pan-scan", 0);
//...
}
+ if (v->p_frame_skipped) {
+ return 0;
+ }
v->rnd = get_bits1(gb);
- if(v->interlace)
+ if (v->interlace)
v->uvsamp = get_bits1(gb);
- if(v->finterpflag) v->interpfrm = get_bits(gb, 1);
+ if (v->field_mode) {
+ if (!v->refdist_flag)
+ v->refdist = 0;
+ else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
+ v->refdist = get_bits(gb, 2);
+ if (v->refdist == 3)
+ v->refdist += get_unary(gb, 0, 16);
+ }
+ if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ v->frfd = (v->bfraction * v->refdist) >> 8;
+ v->brfd = v->refdist - v->frfd - 1;
+ if (v->brfd < 0)
+ v->brfd = 0;
+ }
+ goto parse_common_info;
+ }
+ if (v->fcm == PROGRESSIVE) {
+ if (v->finterpflag)
+ v->interpfrm = get_bits1(gb);
+ if (v->s.pict_type == AV_PICTURE_TYPE_B) {
+ v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
+ if (v->bfraction == 0) {
+ v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
+ }
+ }
+ }
+
+ parse_common_info:
+ if (v->field_mode)
+ v->cur_field_type = !(v->tff ^ v->second_field);
pqindex = get_bits(gb, 5);
+ if (!pqindex)
+ return -1;
v->pqindex = pqindex;
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pq = pquant_table[0][pqindex];
+ v->pq = ff_vc1_pquant_table[0][pqindex];
else
- v->pq = pquant_table[1][pqindex];
+ v->pq = ff_vc1_pquant_table[1][pqindex];
v->pquantizer = 1;
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
if (v->quantizer_mode == QUANT_NON_UNIFORM)
v->pquantizer = 0;
v->pqindex = pqindex;
- if (pqindex < 9) v->halfpq = get_bits(gb, 1);
- else v->halfpq = 0;
+ if (pqindex < 9)
+ v->halfpq = get_bits1(gb);
+ else
+ v->halfpq = 0;
if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
- v->pquantizer = get_bits(gb, 1);
+ v->pquantizer = get_bits1(gb);
+ if (v->postprocflag)
+ v->postproc = get_bits(gb, 2);
+
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
+ v->use_ic = 0;
+
+ if (v->parse_only)
+ return 0;
- switch(v->s.pict_type) {
- case I_TYPE:
- case BI_TYPE:
+ switch (v->s.pict_type) {
+ case AV_PICTURE_TYPE_I:
+ case AV_PICTURE_TYPE_BI:
+ if (v->fcm == ILACE_FRAME) { //interlace frame picture
+ status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ }
status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
v->condover = CONDOVER_NONE;
- if(v->overlap && v->pq <= 8) {
+ if (v->overlap && v->pq <= 8) {
v->condover = decode012(gb);
- if(v->condover == CONDOVER_SELECT) {
+ if (v->condover == CONDOVER_SELECT) {
status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
- if (status < 0) return -1;
+ if (status < 0)
+ return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
}
}
break;
- case P_TYPE:
- if(v->postprocflag)
- v->postproc = get_bits1(gb);
- if (v->extended_mv) v->mvrange = get_prefix(gb, 0, 3);
- else v->mvrange = 0;
+ case AV_PICTURE_TYPE_P:
+ if (v->field_mode) {
+ v->numref = get_bits1(gb);
+ if (!v->numref) {
+ v->reffield = get_bits1(gb);
+ v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
+ }
+ }
+ if (v->extended_mv)
+ v->mvrange = get_unary(gb, 0, 3);
+ else
+ v->mvrange = 0;
+ if (v->interlace) {
+ if (v->extended_dmv)
+ v->dmvrange = get_unary(gb, 0, 3);
+ else
+ v->dmvrange = 0;
+ if (v->fcm == ILACE_FRAME) { // interlaced frame picture
+ v->fourmvswitch = get_bits1(gb);
+ v->intcomp = get_bits1(gb);
+ if (v->intcomp) {
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ mbmodetab = get_bits(gb, 2);
+ if (v->fourmvswitch)
+ v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
+ else
+ v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
+ imvtab = get_bits(gb, 2);
+ v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
+ // interlaced p-picture cbpcy range is [1, 63]
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ twomvbptab = get_bits(gb, 2);
+ v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
+ if (v->fourmvswitch) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ }
+ }
+ }
v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
v->range_x = 1 << (v->k_x - 1);
v->range_y = 1 << (v->k_y - 1);
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
+ if (v->pq < 5)
+ v->tt_index = 0;
+ else if (v->pq < 13)
+ v->tt_index = 1;
+ else
+ v->tt_index = 2;
+ if (v->fcm != ILACE_FRAME) {
+ int mvmode;
+ mvmode = get_unary(gb, 1, 4);
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int mvmode2;
+ mvmode2 = get_unary(gb, 1, 3);
+ v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
+ if (v->field_mode)
+ v->intcompfield = decode210(gb);
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ if ((v->field_mode) && !v->intcompfield) {
+ v->lumscale2 = get_bits(gb, 6);
+ v->lumshift2 = get_bits(gb, 6);
+ INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
+ }
+ v->use_ic = 1;
+ }
+ v->qs_last = v->s.quarter_sample;
+ if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else
+ v->s.quarter_sample = 1;
+ } else
+ v->s.quarter_sample = 1;
+ v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
+ || (v->mv_mode == MV_PMODE_INTENSITY_COMP
+ && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
+ }
+ if (v->fcm == PROGRESSIVE) { // progressive
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV)
+ || v->mv_mode == MV_PMODE_MIXED_MV) {
+ status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ } else {
+ v->mv_type_is_raw = 0;
+ memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
- lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
- if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- {
- int scale, shift, i;
- v->mv_mode2 = mv_pmode_table2[lowquant][get_prefix(gb, 1, 3)];
- v->lumscale = get_bits(gb, 6);
- v->lumshift = get_bits(gb, 6);
- /* fill lookup tables for intensity compensation */
- if(!v->lumscale) {
- scale = -64;
- shift = (255 - v->lumshift * 2) << 6;
- if(v->lumshift > 31)
- shift += 128 << 6;
+ /* Hopefully this is correct for P frames */
+ v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ } else if (v->fcm == ILACE_FRAME) { // frame interlaced
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = 1;
+ v->s.mspel = 1;
+ } else { // field interlaced
+ mbmodetab = get_bits(gb, 3);
+ imvtab = get_bits(gb, 2 + v->numref);
+ if (!v->numref)
+ v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
+ else
+ v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
} else {
- scale = v->lumscale + 32;
- if(v->lumshift > 31)
- shift = (v->lumshift - 64) << 6;
- else
- shift = v->lumshift << 6;
+ v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
}
- for(i = 0; i < 256; i++) {
- v->luty[i] = clip_uint8((scale * i + shift + 32) >> 6);
- v->lutuv[i] = clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ }
+ if (v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0; //FIXME Is that so ?
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
}
- if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else
- v->s.quarter_sample = 1;
- } else
- v->s.quarter_sample = 1;
- v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
+ break;
+ case AV_PICTURE_TYPE_B:
+ // TODO: implement interlaced frame B picture decoding
+ if (v->fcm == ILACE_FRAME)
+ return -1;
+ if (v->extended_mv)
+ v->mvrange = get_unary(gb, 0, 3);
+ else
+ v->mvrange = 0;
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
- if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
- v->mv_mode2 == MV_PMODE_MIXED_MV)
- || v->mv_mode == MV_PMODE_MIXED_MV)
- {
- status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
+ if (v->pq < 5)
+ v->tt_index = 0;
+ else if (v->pq < 13)
+ v->tt_index = 1;
+ else
+ v->tt_index = 2;
+
+ if (v->field_mode) {
+ int mvmode;
+ if (v->extended_dmv)
+ v->dmvrange = get_unary(gb, 0, 3);
+ mvmode = get_unary(gb, 1, 3);
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
+ v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
+ status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
+ mbmodetab = get_bits(gb, 3);
+ if (v->mv_mode == MV_PMODE_MIXED_MV)
+ v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
+ else
+ v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
+ imvtab = get_bits(gb, 3);
+ v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
+ icbptab = get_bits(gb, 3);
+ v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
+ if (v->mv_mode == MV_PMODE_MIXED_MV) {
+ fourmvbptab = get_bits(gb, 2);
+ v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
+ }
+ v->numref = 1; // interlaced field B pictures are always 2-ref
} else {
- v->mv_type_is_raw = 0;
- memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
+ v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->qs_last = v->s.quarter_sample;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
+ v->s.mspel = v->s.quarter_sample;
+ status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0)
+ return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ v->s.mv_table_index = get_bits(gb, 2);
+ v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
}
- status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- /* Hopefully this is correct for P frames */
- v->s.mv_table_index = get_bits(gb, 2); //but using vc1_ tables
- v->cbpcy_vlc = &vc1_cbpcy_p_vlc[get_bits(gb, 2)];
- if (v->dquant)
- {
+ if (v->dquant) {
av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
vop_dquant_decoding(v);
}
- v->ttfrm = 0; //FIXME Is that so ?
- if (v->vstransform)
- {
- v->ttmbf = get_bits(gb, 1);
- if (v->ttmbf)
- {
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ v->ttfrm = 0;
+ if (v->vstransform) {
+ v->ttmbf = get_bits1(gb);
+ if (v->ttmbf) {
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
/* AC Syntax */
v->c_ac_table_index = decode012(gb);
- if (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
- {
+ if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
v->y_ac_table_index = decode012(gb);
}
/* DC Syntax */
- v->s.dc_table_index = get_bits(gb, 1);
- if (v->s.pict_type == I_TYPE && v->dquant) {
+ v->s.dc_table_index = get_bits1(gb);
+ if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
+ && v->dquant) {
av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
vop_dquant_decoding(v);
}
v->bi_type = 0;
- if(v->s.pict_type == BI_TYPE) {
- v->s.pict_type = B_TYPE;
+ if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
+ v->s.pict_type = AV_PICTURE_TYPE_B;
v->bi_type = 1;
}
return 0;
}
-/***********************************************************************/
-/**
- * @defgroup block VC-1 Block-level functions
- * @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @{
- */
-
-/**
- * @def GET_MQUANT
- * @brief Get macroblock-level quantizer scale
- */
-#define GET_MQUANT() \
- if (v->dquantfrm) \
- { \
- int edges = 0; \
- if (v->dqprofile == DQPROFILE_ALL_MBS) \
- { \
- if (v->dqbilevel) \
- { \
- mquant = (get_bits(gb, 1)) ? v->altpq : v->pq; \
- } \
- else \
- { \
- mqdiff = get_bits(gb, 3); \
- if (mqdiff != 7) mquant = v->pq + mqdiff; \
- else mquant = get_bits(gb, 5); \
- } \
- } \
- if(v->dqprofile == DQPROFILE_SINGLE_EDGE) \
- edges = 1 << v->dqsbedge; \
- else if(v->dqprofile == DQPROFILE_DOUBLE_EDGES) \
- edges = (3 << v->dqsbedge) % 15; \
- else if(v->dqprofile == DQPROFILE_FOUR_EDGES) \
- edges = 15; \
- if((edges&1) && !s->mb_x) \
- mquant = v->altpq; \
- if((edges&2) && s->first_slice_line) \
- mquant = v->altpq; \
- if((edges&4) && s->mb_x == (s->mb_width - 1)) \
- mquant = v->altpq; \
- if((edges&8) && s->mb_y == (s->mb_height - 1)) \
- mquant = v->altpq; \
- }
-
-/**
- * @def GET_MVDATA(_dmv_x, _dmv_y)
- * @brief Get MV differentials
- * @see MVDATA decoding from 8.3.5.2, p(1)20
- * @param _dmv_x Horizontal differential for decoded MV
- * @param _dmv_y Vertical differential for decoded MV
- */
-#define GET_MVDATA(_dmv_x, _dmv_y) \
- index = 1 + get_vlc2(gb, vc1_mv_diff_vlc[s->mv_table_index].table,\
- VC1_MV_DIFF_VLC_BITS, 2); \
- if (index > 36) \
- { \
- mb_has_coeffs = 1; \
- index -= 37; \
- } \
- else mb_has_coeffs = 0; \
- s->mb_intra = 0; \
- if (!index) { _dmv_x = _dmv_y = 0; } \
- else if (index == 35) \
- { \
- _dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \
- _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
- } \
- else if (index == 36) \
- { \
- _dmv_x = 0; \
- _dmv_y = 0; \
- s->mb_intra = 1; \
- } \
- else \
- { \
- index1 = index%6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- \
- index1 = index/6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- }
-
-/** Predict and set motion vector
- */
-static inline void vc1_pred_mv(MpegEncContext *s, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t* is_intra)
+static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
{
- int xy, wrap, off = 0;
- int16_t *A, *B, *C;
- int px, py;
- int sum;
-
- /* scale MV difference to be quad-pel */
- dmv_x <<= 1 - s->quarter_sample;
- dmv_y <<= 1 - s->quarter_sample;
-
- wrap = s->b8_stride;
- xy = s->block_index[n];
-
- if(s->mb_intra){
- s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0;
- s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0;
- if(mv1) { /* duplicate motion data for 1-MV block */
- s->current_picture.motion_val[0][xy + 1][0] = 0;
- s->current_picture.motion_val[0][xy + 1][1] = 0;
- s->current_picture.motion_val[0][xy + wrap][0] = 0;
- s->current_picture.motion_val[0][xy + wrap][1] = 0;
- s->current_picture.motion_val[0][xy + wrap + 1][0] = 0;
- s->current_picture.motion_val[0][xy + wrap + 1][1] = 0;
- }
- return;
- }
-
- C = s->current_picture.motion_val[0][xy - 1];
- A = s->current_picture.motion_val[0][xy - wrap];
- if(mv1)
- off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2;
- else {
- //in 4-MV mode different blocks have different B predictor position
- switch(n){
- case 0:
- off = (s->mb_x > 0) ? -1 : 1;
- break;
- case 1:
- off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1;
- break;
- case 2:
- off = 1;
- break;
- case 3:
- off = -1;
- }
- }
- B = s->current_picture.motion_val[0][xy - wrap + off];
-
- if(!s->first_slice_line || (n==2 || n==3)) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x || (n==1 || n==3)) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- qx = (s->mb_x << 6) + ((n==1 || n==3) ? 32 : 0);
- qy = (s->mb_y << 6) + ((n==2 || n==3) ? 32 : 0);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(mv1) {
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- } else {
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- }
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if((!s->first_slice_line || (n==2 || n==3)) && (s->mb_x || (n==1 || n==3))) {
- if(is_intra[xy - wrap])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - A[0]) + ABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 1])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - C[0]) + ABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
- }
- /* store MV using signed modulus of MV range defined in 4.11 */
- s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
- if(mv1) { /* duplicate motion data for 1-MV block */
- s->current_picture.motion_val[0][xy + 1][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + 1][1] = s->current_picture.motion_val[0][xy][1];
- s->current_picture.motion_val[0][xy + wrap][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + wrap][1] = s->current_picture.motion_val[0][xy][1];
- s->current_picture.motion_val[0][xy + wrap + 1][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + wrap + 1][1] = s->current_picture.motion_val[0][xy][1];
- }
-}
-
-/** Motion compensation for direct or interpolated blocks in B-frames
- */
-static void vc1_interp_mc(VC1Context *v)
+{ 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
+{ 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
+{ 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
+{ 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
+{ 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
+{ 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
+{ 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
+{ 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
+{ 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
+{ 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
+{ 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
+{ 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
+{ 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
+{ 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
+{ 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
+{ 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
+{ 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
+{ 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
+{ 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
+{ 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
+{ 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
+{ 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
+{ 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
+{ 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
+{ 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
+{ 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
+{ 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
+{ 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
+{ 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
+{ 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
+{ 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
+},
{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY, *srcU, *srcV;
- int dxy, uvdxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
-
- if(!v->s.next_picture.data[0])return;
-
- mx = s->mv[1][0][0];
- my = s->mv[1][0][1];
- uvmx = (mx + ((mx & 3) == 3)) >> 1;
- uvmy = (my + ((my & 3) == 3)) >> 1;
- srcY = s->next_picture.data[0];
- srcU = s->next_picture.data[1];
- srcV = s->next_picture.data[2];
-
- src_x = s->mb_x * 16 + (mx >> 2);
- src_y = s->mb_y * 16 + (my >> 2);
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- src_x = clip( src_x, -16, s->mb_width * 16);
- src_y = clip( src_y, -16, s->mb_height * 16);
- uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
-
- srcY += src_y * s->linesize + src_x;
- srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
-
- /* for grayscale we should not try to read from unknown area */
- if(s->flags & CODEC_FLAG_GRAY) {
- srcU = s->edge_emu_buffer + 18 * s->linesize;
- srcV = s->edge_emu_buffer + 18 * s->linesize;
- }
-
- if(v->rangeredfrm
- || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16
- || (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
- uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
-
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17, 17,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = uvbuf;
- srcV = uvbuf + 16;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17; j++) {
- for(i = 0; i < 17; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- }
-
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
-
- mx >>= 1;
- my >>= 1;
- dxy = ((my & 1) << 1) | (mx & 1);
-
- dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
-
- if(s->flags & CODEC_FLAG_GRAY) return;
- /* Chroma MC always uses qpel blilinear */
- uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
- dsp->avg_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->avg_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
-}
-
-static always_inline int scale_mv(int value, int bfrac, int inv, int qs)
+{ 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
+{ 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
+{ 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
+{ 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
+{ 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
+{ 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
+{ 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
+{ 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
+{ 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
+{ 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
+{ 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
+{ 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
+{ 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
+{ 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
+{ 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
+{ 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
+{ 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
+{ 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
+{ 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
+{ 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
+{ 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
+{ 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
+{ 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
+{ 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
+{ 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
+{ 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
+{ 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
+{ 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
+{ 0x0169, 9}
+},
{
- int n = bfrac;
-
-#if B_FRACTION_DEN==256
- if(inv)
- n -= 256;
- if(!qs)
- return 2 * ((value * n + 255) >> 9);
- return (value * n + 128) >> 8;
-#else
- if(inv)
- n -= B_FRACTION_DEN;
- if(!qs)
- return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN));
- return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN;
-#endif
-}
-
-/** Reconstruct motion vector for B-frame and do motion compensation
- */
-static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode)
+{ 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
+{ 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
+{ 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
+{ 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
+{ 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
+{ 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
+{ 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
+{ 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
+{ 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
+{ 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
+{ 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
+{ 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
+{ 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
+{ 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
+{ 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
+{ 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
+{ 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
+{ 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
+{ 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
+{ 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
+{ 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
+{ 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
+{ 0x0016, 7}
+},
{
- if(direct) {
- vc1_mc_1mv(v, 0);
- vc1_interp_mc(v);
- return;
- }
- if(mode == BMV_TYPE_INTERPOLATED) {
- vc1_mc_1mv(v, 0);
- vc1_interp_mc(v);
- return;
- }
-
- vc1_mc_1mv(v, (mode == BMV_TYPE_FORWARD));
-}
-
-static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype)
+{ 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
+{ 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
+{ 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
+{ 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
+{ 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
+{ 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
+{ 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
+{ 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
+{ 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
+{ 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
+{ 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
+{ 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
+{ 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
+{ 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
+{ 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
+{ 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
+{ 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
+{ 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
+{ 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
+{ 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
+{ 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
+{ 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
+{ 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
+{ 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
+{ 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
+},
{
- MpegEncContext *s = &v->s;
- int xy, wrap, off = 0;
- int16_t *A, *B, *C;
- int px, py;
- int sum;
- int r_x, r_y;
- const uint8_t *is_intra = v->mb_type[0];
-
- r_x = v->range_x;
- r_y = v->range_y;
- /* scale MV difference to be quad-pel */
- dmv_x[0] <<= 1 - s->quarter_sample;
- dmv_y[0] <<= 1 - s->quarter_sample;
- dmv_x[1] <<= 1 - s->quarter_sample;
- dmv_y[1] <<= 1 - s->quarter_sample;
+{ 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
+{ 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
+{ 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
+{ 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
+{ 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
+{ 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
+{ 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
+{ 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
+{ 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
+{ 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
+{ 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
+{ 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
+{ 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
+{ 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
+{ 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
+{ 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
+{ 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
+{ 0x0003, 7}
+},
+{
+{ 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
+{ 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
+{ 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
+{ 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
+{ 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
+{ 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
+{ 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
+{ 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
+{ 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
+{ 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
+{ 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
+{ 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
+{ 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
+{ 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
+{ 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
+{ 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
+{ 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
+{ 0x0003, 7}
+},
+{
+{ 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
+{ 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
+{ 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
+{ 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
+{ 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
+{ 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
+{ 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
+{ 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
+{ 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
+{ 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
+{ 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
+{ 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
+{ 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
+{ 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
+{ 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
+{ 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
+{ 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
+{ 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
+{ 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
+{ 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
+{ 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
+{ 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
+{ 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
+{ 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
+{ 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
+{ 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
+{ 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
+{ 0x007A, 7}
+},
+{
+{ 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
+{ 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
+{ 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
+{ 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
+{ 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
+{ 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
+{ 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
+{ 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
+{ 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
+{ 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
+{ 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
+{ 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
+{ 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
+{ 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
+{ 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
+{ 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
+{ 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
+{ 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
+{ 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
+{ 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
+{ 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
+{ 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
+{ 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
+{ 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
+{ 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
+{ 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
+{ 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
+{ 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
+{ 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
+{ 0x0073, 7}
+}
+};
- wrap = s->b8_stride;
- xy = s->block_index[0];
+static const uint16_t vlc_offs[] = {
+ 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
+ 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
+ 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
+ 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
+ 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
+ 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
+ 31714, 31746, 31778, 32306, 32340, 32372
+};
- if(s->mb_intra) {
- s->current_picture.motion_val[0][xy][0] =
- s->current_picture.motion_val[0][xy][1] =
- s->current_picture.motion_val[1][xy][0] =
- s->current_picture.motion_val[1][xy][1] = 0;
- return;
- }
- s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample);
- s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample);
- s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample);
- s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample);
- if(direct) {
- s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
- s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
- s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
- s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
- return;
- }
+/**
+ * Init VC-1 specific tables and VC1Context members
+ * @param v The VC1Context to initialize
+ * @return Status
+ */
+int ff_vc1_init_common(VC1Context *v)
+{
+ static int done = 0;
+ int i = 0;
+ static VLC_TYPE vlc_table[32372][2];
- if((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
- C = s->current_picture.motion_val[0][xy - 2];
- A = s->current_picture.motion_val[0][xy - wrap*2];
- off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
- B = s->current_picture.motion_val[0][xy - wrap*2 + off];
+ v->hrd_rate = v->hrd_buffer = NULL;
- if(!s->first_slice_line) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- if(v->profile < PROFILE_ADVANCED) {
- qx = (s->mb_x << 5);
- qy = (s->mb_y << 5);
- X = (s->mb_width << 5) - 4;
- Y = (s->mb_height << 5) - 4;
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- } else {
- qx = (s->mb_x << 6);
- qy = (s->mb_y << 6);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if(0 && !s->first_slice_line && s->mb_x) {
- if(is_intra[xy - wrap])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - A[0]) + ABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 2])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - C[0]) + ABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
+ /* VLC tables */
+ if (!done) {
+ INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
+ ff_vc1_bfraction_bits, 1, 1,
+ ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
+ INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
+ ff_vc1_norm2_bits, 1, 1,
+ ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
+ INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
+ ff_vc1_norm6_bits, 1, 1,
+ ff_vc1_norm6_codes, 2, 2, 556);
+ INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
+ ff_vc1_imode_bits, 1, 1,
+ ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
+ for (i = 0; i < 3; i++) {
+ ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
+ ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
+ init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
+ ff_vc1_ttmb_bits[i], 1, 1,
+ ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
+ ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
+ init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
+ ff_vc1_ttblk_bits[i], 1, 1,
+ ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
+ ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
+ init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
+ ff_vc1_subblkpat_bits[i], 1, 1,
+ ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
+ ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
+ init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
+ ff_vc1_4mv_block_pattern_bits[i], 1, 1,
+ ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
+ ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
+ init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
+ ff_vc1_cbpcy_p_bits[i], 1, 1,
+ ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
+ ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
+ init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
+ ff_vc1_mv_diff_bits[i], 1, 1,
+ ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 8; i++) {
+ ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
+ ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
+ init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
+ &vc1_ac_tables[i][0][1], 8, 4,
+ &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
+ /* initialize interlaced MVDATA tables (2-Ref) */
+ ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
+ ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
+ init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
+ ff_vc1_2ref_mvdata_bits[i], 1, 1,
+ ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
+ ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
+ ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
+ init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
+ ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
+ ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ /* initialize NON-4MV MBMODE VLC tables for the same */
+ ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
+ ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
+ init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
+ ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
+ ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ /* initialize interlaced MVDATA tables (1-Ref) */
+ ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
+ ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
+ init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
+ ff_vc1_1ref_mvdata_bits[i], 1, 1,
+ ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 4; i++) {
+ /* Initialize 2MV Block pattern VLC tables */
+ ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
+ ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
+ init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
+ ff_vc1_2mv_block_pattern_bits[i], 1, 1,
+ ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ }
+ for (i = 0; i < 8; i++) {
+ /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
+ ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
+ ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
+ init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
+ ff_vc1_icbpcy_p_bits[i], 1, 1,
+ ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ /* Initialize interlaced field picture MBMODE VLC tables */
+ ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
+ ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
+ init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
+ ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
+ ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
+ ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
+ init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
+ ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
+ ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
}
- /* store MV using signed modulus of MV range defined in 4.11 */
- s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y;
+ done = 1;
}
- if((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
- C = s->current_picture.motion_val[1][xy - 2];
- A = s->current_picture.motion_val[1][xy - wrap*2];
- off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
- B = s->current_picture.motion_val[1][xy - wrap*2 + off];
- if(!s->first_slice_line) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- if(v->profile < PROFILE_ADVANCED) {
- qx = (s->mb_x << 5);
- qy = (s->mb_y << 5);
- X = (s->mb_width << 5) - 4;
- Y = (s->mb_height << 5) - 4;
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- } else {
- qx = (s->mb_x << 6);
- qy = (s->mb_y << 6);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if(0 && !s->first_slice_line && s->mb_x) {
- if(is_intra[xy - wrap])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - A[0]) + ABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 2])
- sum = ABS(px) + ABS(py);
- else
- sum = ABS(px - C[0]) + ABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
- }
- /* store MV using signed modulus of MV range defined in 4.11 */
+ /* Other defaults */
+ v->pq = -1;
+ v->mvrange = 0; /* 7.1.1.18, p80 */
- s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y;
- }
- s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
- s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
- s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
- s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
+ return 0;
}
-
-/** Get predicted DC value for I-frames only
- * prediction dir: left=0, top=1
- * @param s MpegEncContext
- * @param[in] n block index in the current MB
- * @param dc_val_ptr Pointer to DC predictor
- * @param dir_ptr Prediction direction for use in AC prediction
- */
-static inline int vc1_i_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
- int16_t **dc_val_ptr, int *dir_ptr)
-{
- int a, b, c, wrap, pred, scale;
- int16_t *dc_val;
- static const uint16_t dcpred[32] = {
- -1, 1024, 512, 341, 256, 205, 171, 146, 128,
- 114, 102, 93, 85, 79, 73, 68, 64,
- 60, 57, 54, 51, 49, 47, 45, 43,
- 41, 39, 38, 37, 35, 34, 33
- };
-
- /* find prediction - wmv3_dc_scale always used here in fact */
- if (n < 4) scale = s->y_dc_scale;
- else scale = s->c_dc_scale;
-
- wrap = s->block_wrap[n];
- dc_val= s->dc_val[0] + s->block_index[n];
-
- /* B A
- * C X
- */
- c = dc_val[ - 1];
- b = dc_val[ - 1 - wrap];
- a = dc_val[ - wrap];
-
- if (pq < 9 || !overlap)
- {
- /* Set outer values */
- if (s->first_slice_line && (n!=2 && n!=3)) b=a=dcpred[scale];
- if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=dcpred[scale];
- }
- else
- {
- /* Set outer values */
- if (s->first_slice_line && (n!=2 && n!=3)) b=a=0;
- if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=0;
- }
-
- if (abs(a - b) <= abs(b - c)) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = a;
- *dir_ptr = 0;//top
- }
-
- /* update predictor */
- *dc_val_ptr = &dc_val[0];
- return pred;
-}
-
-
-/** Get predicted DC value
- * prediction dir: left=0, top=1
- * @param s MpegEncContext
- * @param[in] n block index in the current MB
- * @param dc_val_ptr Pointer to DC predictor
- * @param dir_ptr Prediction direction for use in AC prediction
- */
-static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
- int a_avail, int c_avail,
- int16_t **dc_val_ptr, int *dir_ptr)
-{
- int a, b, c, wrap, pred, scale;
- int16_t *dc_val;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int q1, q2 = 0;
-
- /* find prediction - wmv3_dc_scale always used here in fact */
- if (n < 4) scale = s->y_dc_scale;
- else scale = s->c_dc_scale;
-
- wrap = s->block_wrap[n];
- dc_val= s->dc_val[0] + s->block_index[n];
-
- /* B A
- * C X
- */
- c = dc_val[ - 1];
- b = dc_val[ - 1 - wrap];
- a = dc_val[ - wrap];
- /* scale predictors if needed */
- q1 = s->current_picture.qscale_table[mb_pos];
- if(c_avail && (n!= 1 && n!=3)) {
- q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(q2 && q2 != q1)
- c = (c * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
- if(a_avail && (n!= 2 && n!=3)) {
- q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(q2 && q2 != q1)
- a = (a * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
- if(a_avail && c_avail && (n!=3)) {
- int off = mb_pos;
- if(n != 1) off--;
- if(n != 2) off -= s->mb_stride;
- q2 = s->current_picture.qscale_table[off];
- if(q2 && q2 != q1)
- b = (b * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
-
- if(a_avail && c_avail) {
- if(abs(a - b) <= abs(b - c)) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = a;
- *dir_ptr = 0;//top
- }
- } else if(a_avail) {
- pred = a;
- *dir_ptr = 0;//top
- } else if(c_avail) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = 0;
- *dir_ptr = 1;//left
- }
-
- /* update predictor */
- *dc_val_ptr = &dc_val[0];
- return pred;
-}
-
-
-/**
- * @defgroup std_mb VC1 Macroblock-level functions in Simple/Main Profiles
- * @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @{
- */
-
-static inline int vc1_coded_block_pred(MpegEncContext * s, int n, uint8_t **coded_block_ptr)
-{
- int xy, wrap, pred, a, b, c;
-
- xy = s->block_index[n];
- wrap = s->b8_stride;
-
- /* B C
- * A X
- */
- a = s->coded_block[xy - 1 ];
- b = s->coded_block[xy - 1 - wrap];
- c = s->coded_block[xy - wrap];
-
- if (b == c) {
- pred = a;
- } else {
- pred = c;
- }
-
- /* store value */
- *coded_block_ptr = &s->coded_block[xy];
-
- return pred;
-}
-
-/**
- * Decode one AC coefficient
- * @param v The VC1 context
- * @param last Last coefficient
- * @param skip How much zero coefficients to skip
- * @param value Decoded AC coefficient value
- * @see 8.1.3.4
- */
-static void vc1_decode_ac_coeff(VC1Context *v, int *last, int *skip, int *value, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- int index, escape, run = 0, level = 0, lst = 0;
-
- index = get_vlc2(gb, vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
- if (index != vc1_ac_sizes[codingset] - 1) {
- run = vc1_index_decode_table[codingset][index][0];
- level = vc1_index_decode_table[codingset][index][1];
- lst = index >= vc1_last_decode_table[codingset];
- if(get_bits(gb, 1))
- level = -level;
- } else {
- escape = decode210(gb);
- if (escape != 2) {
- index = get_vlc2(gb, vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
- run = vc1_index_decode_table[codingset][index][0];
- level = vc1_index_decode_table[codingset][index][1];
- lst = index >= vc1_last_decode_table[codingset];
- if(escape == 0) {
- if(lst)
- level += vc1_last_delta_level_table[codingset][run];
- else
- level += vc1_delta_level_table[codingset][run];
- } else {
- if(lst)
- run += vc1_last_delta_run_table[codingset][level] + 1;
- else
- run += vc1_delta_run_table[codingset][level] + 1;
- }
- if(get_bits(gb, 1))
- level = -level;
- } else {
- int sign;
- lst = get_bits(gb, 1);
- if(v->s.esc3_level_length == 0) {
- if(v->pq < 8 || v->dquantfrm) { // table 59
- v->s.esc3_level_length = get_bits(gb, 3);
- if(!v->s.esc3_level_length)
- v->s.esc3_level_length = get_bits(gb, 2) + 8;
- } else { //table 60
- v->s.esc3_level_length = get_prefix(gb, 1, 6) + 2;
- }
- v->s.esc3_run_length = 3 + get_bits(gb, 2);
- }
- run = get_bits(gb, v->s.esc3_run_length);
- sign = get_bits(gb, 1);
- level = get_bits(gb, v->s.esc3_level_length);
- if(sign)
- level = -level;
- }
- }
-
- *last = lst;
- *skip = run;
- *value = level;
-}
-
-/** Decode intra block in intra frames - should be faster than decode_intra_block
- * @param v VC1Context
- * @param block block to decode
- * @param coded are AC coeffs present or not
- * @param codingset set of VLC to decode data
- */
-static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int run_diff, i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (v->pq == 1) dcdiff = get_bits(gb, 10);
- else if (v->pq == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (v->pq == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (v->pq == 2)
- dcdiff = (dcdiff<<1) + get_bits(gb, 1) - 1;
- }
- if (get_bits(gb, 1))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_i_pred_dc(&v->s, v->overlap, v->pq, n, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
- /* Skip ? */
- run_diff = 0;
- i = 0;
- if (!coded) {
- goto not_coded;
- }
-
- //AC Decoding
- i = 1;
-
- {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int scale;
- int k;
-
- scale = v->pq * 2 + v->halfpq;
-
- if(v->s.ac_pred) {
- if(!dc_pred_dir)
- zz_table = vc1_horizontal_zz;
- else
- zz_table = vc1_vertical_zz;
- } else
- zz_table = vc1_normal_zz;
-
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(s->ac_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
- }
-
- if(s->ac_pred) i = 63;
- }
-
-not_coded:
- if(!coded) {
- int k, scale;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- scale = v->pq * 2 + v->halfpq;
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- ac_val -= 16;
- if(s->ac_pred)
- memcpy(ac_val2, ac_val, 8 * 2);
- } else {//top
- ac_val -= 16 * s->block_wrap[n];
- if(s->ac_pred)
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- }
-
- /* apply AC prediction if needed */
- if(s->ac_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -v->pq : v->pq;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode intra block in intra frames - should be faster than decode_intra_block
- * @param v VC1Context
- * @param block block to decode
- * @param coded are AC coeffs present or not
- * @param codingset set of VLC to decode data
- */
-static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset, int mquant)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int run_diff, i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
- int a_avail = v->a_avail, c_avail = v->c_avail;
- int use_pred = s->ac_pred;
- int scale;
- int q1, q2 = 0;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (mquant == 1) dcdiff = get_bits(gb, 10);
- else if (mquant == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (mquant == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (mquant == 2)
- dcdiff = (dcdiff<<1) + get_bits(gb, 1) - 1;
- }
- if (get_bits(gb, 1))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
- /* Skip ? */
- run_diff = 0;
- i = 0;
-
- //AC Decoding
- i = 1;
-
- /* check if AC is needed at all and adjust direction if needed */
- if(!a_avail) dc_pred_dir = 1;
- if(!c_avail) dc_pred_dir = 0;
- if(!a_avail && !c_avail) use_pred = 0;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- scale = mquant * 2 + v->halfpq;
-
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- q1 = s->current_picture.qscale_table[mb_pos];
- if(dc_pred_dir && c_avail) q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(!dc_pred_dir && a_avail) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(n && n<4) q2 = q1;
-
- if(coded) {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int k;
-
- if(v->s.ac_pred) {
- if(!dc_pred_dir)
- zz_table = vc1_horizontal_zz;
- else
- zz_table = vc1_vertical_zz;
- } else
- zz_table = vc1_normal_zz;
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- /* scale predictors if needed*/
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
-
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += (ac_val[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- } else {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
-
- if(use_pred) i = 63;
- } else { // no AC coeffs
- int k;
-
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- if(use_pred) {
- memcpy(ac_val2, ac_val, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- } else {//top
- if(use_pred) {
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val2[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val2[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode intra block in inter frames - more generic version than vc1_decode_i_block
- * @param v VC1Context
- * @param block block to decode
- * @param coded are AC coeffs present or not
- * @param mquant block quantizer
- * @param codingset set of VLC to decode data
- */
-static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int coded, int mquant, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int run_diff, i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int a_avail = v->a_avail, c_avail = v->c_avail;
- int use_pred = s->ac_pred;
- int scale;
- int q1, q2 = 0;
-
- /* XXX: Guard against dumb values of mquant */
- mquant = (mquant < 1) ? 0 : ( (mquant>31) ? 31 : mquant );
-
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[mquant];
- s->c_dc_scale = s->c_dc_scale_table[mquant];
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (mquant == 1) dcdiff = get_bits(gb, 10);
- else if (mquant == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (mquant == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (mquant == 2)
- dcdiff = (dcdiff<<1) + get_bits(gb, 1) - 1;
- }
- if (get_bits(gb, 1))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, a_avail, c_avail, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
-
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
- /* Skip ? */
- run_diff = 0;
- i = 0;
-
- //AC Decoding
- i = 1;
-
- /* check if AC is needed at all and adjust direction if needed */
- if(!a_avail) dc_pred_dir = 1;
- if(!c_avail) dc_pred_dir = 0;
- if(!a_avail && !c_avail) use_pred = 0;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- scale = mquant * 2 + v->halfpq;
-
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- q1 = s->current_picture.qscale_table[mb_pos];
- if(dc_pred_dir && c_avail) q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(!dc_pred_dir && a_avail) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(n && n<4) q2 = q1;
-
- if(coded) {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int k;
-
- zz_table = vc1_simple_progressive_8x8_zz;
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- /* scale predictors if needed*/
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
-
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += (ac_val[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- } else {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
-
- if(use_pred) i = 63;
- } else { // no AC coeffs
- int k;
-
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- if(use_pred) {
- memcpy(ac_val2, ac_val, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- } else {//top
- if(use_pred) {
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val2[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val2[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode P block
- */
-static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int subblkpat = 0;
- int scale, off, idx, last, skip, value;
- int ttblk = ttmb & 7;
-
- if(ttmb == -1) {
- ttblk = ttblk_to_tt[v->tt_index][get_vlc2(gb, vc1_ttblk_vlc[v->tt_index].table, VC1_TTBLK_VLC_BITS, 1)];
- }
- if(ttblk == TT_4X4) {
- subblkpat = ~(get_vlc2(gb, vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1);
- }
- if((ttblk != TT_8X8 && ttblk != TT_4X4) && (v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block))) {
- subblkpat = decode012(gb);
- if(subblkpat) subblkpat ^= 3; //swap decoded pattern bits
- if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4;
- if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) ttblk = TT_4X8;
- }
- scale = 2 * mquant + v->halfpq;
-
- // convert transforms like 8X4_TOP to generic TT and SUBBLKPAT
- if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) {
- subblkpat = 2 - (ttblk == TT_8X4_TOP);
- ttblk = TT_8X4;
- }
- if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) {
- subblkpat = 2 - (ttblk == TT_4X8_LEFT);
- ttblk = TT_4X8;
- }
- switch(ttblk) {
- case TT_8X8:
- i = 0;
- last = 0;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 63)
- break;
- idx = vc1_simple_progressive_8x8_zz[i++];
- block[idx] = value * scale;
- if(!v->pquantizer)
- block[idx] += (block[idx] < 0) ? -mquant : mquant;
- }
- s->dsp.vc1_inv_trans_8x8(block);
- break;
- case TT_4X4:
- for(j = 0; j < 4; j++) {
- last = subblkpat & (1 << (3 - j));
- i = 0;
- off = (j & 1) * 4 + (j & 2) * 16;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 15)
- break;
- idx = vc1_simple_progressive_4x4_zz[i++];
- block[idx + off] = value * scale;
- if(!v->pquantizer)
- block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (3 - j))))
- s->dsp.vc1_inv_trans_4x4(block, j);
- }
- break;
- case TT_8X4:
- for(j = 0; j < 2; j++) {
- last = subblkpat & (1 << (1 - j));
- i = 0;
- off = j * 32;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 31)
- break;
- if(v->profile < PROFILE_ADVANCED)
- idx = vc1_simple_progressive_8x4_zz[i++];
- else
- idx = vc1_adv_progressive_8x4_zz[i++];
- block[idx + off] = value * scale;
- if(!v->pquantizer)
- block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (1 - j))))
- s->dsp.vc1_inv_trans_8x4(block, j);
- }
- break;
- case TT_4X8:
- for(j = 0; j < 2; j++) {
- last = subblkpat & (1 << (1 - j));
- i = 0;
- off = j * 4;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 31)
- break;
- if(v->profile < PROFILE_ADVANCED)
- idx = vc1_simple_progressive_4x8_zz[i++];
- else
- idx = vc1_adv_progressive_4x8_zz[i++];
- block[idx + off] = value * scale;
- if(!v->pquantizer)
- block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (1 - j))))
- s->dsp.vc1_inv_trans_4x8(block, j);
- }
- break;
- }
- return 0;
-}
-
-
-/** Decode one P-frame MB (in Simple/Main profile)
- */
-static int vc1_decode_p_mb(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int cbp; /* cbp decoding stuff */
- int mqdiff, mquant; /* MB quantization */
- int ttmb = v->ttfrm; /* MB Transform type */
- int status;
-
- static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
- offset_table[6] = { 0, 1, 3, 7, 15, 31 };
- int mb_has_coeffs = 1; /* last_flag */
- int dmv_x, dmv_y; /* Differential MV components */
- int index, index1; /* LUT indices */
- int val, sign; /* temp values */
- int first_block = 1;
- int dst_idx, off;
- int skipped, fourmv;
-
- mquant = v->pq; /* Loosy initialization */
-
- if (v->mv_type_is_raw)
- fourmv = get_bits1(gb);
- else
- fourmv = v->mv_type_mb_plane[mb_pos];
- if (v->skip_is_raw)
- skipped = get_bits1(gb);
- else
- skipped = v->s.mbskip_table[mb_pos];
-
- s->dsp.clear_blocks(s->block[0]);
-
- if (!fourmv) /* 1MV mode */
- {
- if (!skipped)
- {
- GET_MVDATA(dmv_x, dmv_y);
-
- if (s->mb_intra) {
- s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
- s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
- }
- s->current_picture.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16;
- vc1_pred_mv(s, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
-
- /* FIXME Set DC val for inter block ? */
- if (s->mb_intra && !mb_has_coeffs)
- {
- GET_MQUANT();
- s->ac_pred = get_bits(gb, 1);
- cbp = 0;
- }
- else if (mb_has_coeffs)
- {
- if (s->mb_intra) s->ac_pred = get_bits(gb, 1);
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- }
- else
- {
- mquant = v->pq;
- cbp = 0;
- }
- s->current_picture.qscale_table[mb_pos] = mquant;
-
- if (!v->ttmbf && !s->mb_intra && mb_has_coeffs)
- ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table,
- VC1_TTMB_VLC_BITS, 2);
- if(!s->mb_intra) vc1_mc_1mv(v, 0);
- dst_idx = 0;
- for (i=0; i<6; i++)
- {
- s->dc_val[0][s->block_index[i]] = 0;
- dst_idx += i >> 2;
- val = ((cbp >> (5 - i)) & 1);
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
- if(s->mb_intra) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- for(j = 0; j < 64; j++) s->block[i][j] += 128;
- s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- if(v->pq >= 9 && v->overlap) {
- if(v->a_avail)
- s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? ((i&1)>>1) : (s->mb_y&1));
- if(v->c_avail)
- s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? (i&1) : (s->mb_x&1));
- }
- } else if(val) {
- vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
- s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- }
- }
- }
- else //Skipped
- {
- s->mb_intra = 0;
- for(i = 0; i < 6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;
- s->current_picture.qscale_table[mb_pos] = 0;
- vc1_pred_mv(s, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
- vc1_mc_1mv(v, 0);
- return 0;
- }
- } //1MV mode
- else //4MV mode
- {
- if (!skipped /* unskipped MB */)
- {
- int intra_count = 0, coded_inter = 0;
- int is_intra[6], is_coded[6];
- /* Get CBPCY */
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- for (i=0; i<6; i++)
- {
- val = ((cbp >> (5 - i)) & 1);
- s->dc_val[0][s->block_index[i]] = 0;
- s->mb_intra = 0;
- if(i < 4) {
- dmv_x = dmv_y = 0;
- s->mb_intra = 0;
- mb_has_coeffs = 0;
- if(val) {
- GET_MVDATA(dmv_x, dmv_y);
- }
- vc1_pred_mv(s, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0]);
- if(!s->mb_intra) vc1_mc_4mv_luma(v, i);
- intra_count += s->mb_intra;
- is_intra[i] = s->mb_intra;
- is_coded[i] = mb_has_coeffs;
- }
- if(i&4){
- is_intra[i] = (intra_count >= 3);
- is_coded[i] = val;
- }
- if(i == 4) vc1_mc_4mv_chroma(v);
- v->mb_type[0][s->block_index[i]] = is_intra[i];
- if(!coded_inter) coded_inter = !is_intra[i] & is_coded[i];
- }
- // if there are no coded blocks then don't do anything more
- if(!intra_count && !coded_inter) return 0;
- dst_idx = 0;
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- /* test if block is intra and has pred */
- {
- int intrapred = 0;
- for(i=0; i<6; i++)
- if(is_intra[i]) {
- if(((!s->first_slice_line || (i==2 || i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
- || ((s->mb_x || (i==1 || i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
- intrapred = 1;
- break;
- }
- }
- if(intrapred)s->ac_pred = get_bits(gb, 1);
- else s->ac_pred = 0;
- }
- if (!v->ttmbf && coded_inter)
- ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- for (i=0; i<6; i++)
- {
- dst_idx += i >> 2;
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- s->mb_intra = is_intra[i];
- if (is_intra[i]) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- for(j = 0; j < 64; j++) s->block[i][j] += 128;
- s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- if(v->pq >= 9 && v->overlap) {
- if(v->a_avail)
- s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? ((i&1)>>1) : (s->mb_y&1));
- if(v->c_avail)
- s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? (i&1) : (s->mb_x&1));
- }
- } else if(is_coded[i]) {
- status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
- s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- }
- }
- return status;
- }
- else //Skipped MB
- {
- s->mb_intra = 0;
- s->current_picture.qscale_table[mb_pos] = 0;
- for (i=0; i<6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- for (i=0; i<4; i++)
- {
- vc1_pred_mv(s, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]);
- vc1_mc_4mv_luma(v, i);
- }
- vc1_mc_4mv_chroma(v);
- s->current_picture.qscale_table[mb_pos] = 0;
- return 0;
- }
- }
-
- /* Should never happen */
- return -1;
-}
-
-/** Decode one B-frame MB (in Main profile)
- */
-static void vc1_decode_b_mb(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int cbp = 0; /* cbp decoding stuff */
- int mqdiff, mquant; /* MB quantization */
- int ttmb = v->ttfrm; /* MB Transform type */
-
- static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
- offset_table[6] = { 0, 1, 3, 7, 15, 31 };
- int mb_has_coeffs = 0; /* last_flag */
- int index, index1; /* LUT indices */
- int val, sign; /* temp values */
- int first_block = 1;
- int dst_idx, off;
- int skipped, direct;
- int dmv_x[2], dmv_y[2];
- int bmvtype = BMV_TYPE_BACKWARD;
-
- mquant = v->pq; /* Loosy initialization */
- s->mb_intra = 0;
-
- if (v->dmb_is_raw)
- direct = get_bits1(gb);
- else
- direct = v->direct_mb_plane[mb_pos];
- if (v->skip_is_raw)
- skipped = get_bits1(gb);
- else
- skipped = v->s.mbskip_table[mb_pos];
-
- s->dsp.clear_blocks(s->block[0]);
- dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0;
- for(i = 0; i < 6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- s->current_picture.qscale_table[mb_pos] = 0;
-
- if (!direct) {
- if (!skipped) {
- GET_MVDATA(dmv_x[0], dmv_y[0]);
- dmv_x[1] = dmv_x[0];
- dmv_y[1] = dmv_y[0];
- }
- if(skipped || !s->mb_intra) {
- bmvtype = decode012(gb);
- switch(bmvtype) {
- case 0:
- bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD;
- break;
- case 1:
- bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD;
- break;
- case 2:
- bmvtype = BMV_TYPE_INTERPOLATED;
- dmv_x[1] = dmv_y[1] = 0;
- }
- }
- }
- for(i = 0; i < 6; i++)
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
-
- if (skipped) {
- if(direct) bmvtype = BMV_TYPE_INTERPOLATED;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- if (direct) {
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- s->mb_intra = 0;
- mb_has_coeffs = 0;
- s->current_picture.qscale_table[mb_pos] = mquant;
- if(!v->ttmbf)
- ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- } else {
- if(!mb_has_coeffs && !s->mb_intra) {
- /* no coded blocks - effectively skipped */
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- if(s->mb_intra && !mb_has_coeffs) {
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- s->ac_pred = get_bits1(gb);
- cbp = 0;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- } else {
- if(bmvtype == BMV_TYPE_INTERPOLATED) {
- GET_MVDATA(dmv_x[1], dmv_y[1]);
- if(!mb_has_coeffs) {
- /* interpolated skipped block */
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- }
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- if(!s->mb_intra) {
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- }
- if(s->mb_intra)
- s->ac_pred = get_bits1(gb);
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- if(!v->ttmbf && !s->mb_intra && mb_has_coeffs)
- ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- }
- }
- dst_idx = 0;
- for (i=0; i<6; i++)
- {
- s->dc_val[0][s->block_index[i]] = 0;
- dst_idx += i >> 2;
- val = ((cbp >> (5 - i)) & 1);
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
- if(s->mb_intra) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- for(j = 0; j < 64; j++) s->block[i][j] += 128;
- s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- } else if(val) {
- vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
- s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- }
- }
-}
-
-/** Decode blocks of I-frame
- */
-static void vc1_decode_i_blocks(VC1Context *v)
-{
- int k, j;
- MpegEncContext *s = &v->s;
- int cbp, val;
- uint8_t *coded_val;
- int mb_pos;
-
- /* select codingmode used for VLC tables selection */
- switch(v->y_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[v->pq];
- s->c_dc_scale = s->c_dc_scale_table[v->pq];
-
- //do frame decode
- s->mb_x = s->mb_y = 0;
- s->mb_intra = 1;
- s->first_slice_line = 1;
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
- mb_pos = s->mb_x + s->mb_y * s->mb_width;
- s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
- s->current_picture.qscale_table[mb_pos] = v->pq;
-
- // do actual MB decoding and displaying
- cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
- v->s.ac_pred = get_bits(&v->s.gb, 1);
-
- for(k = 0; k < 6; k++) {
- val = ((cbp >> (5 - k)) & 1);
-
- if (k < 4) {
- int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
- val = val ^ pred;
- *coded_val = val;
- }
- cbp |= val << (5 - k);
-
- vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
-
- s->dsp.vc1_inv_trans_8x8(s->block[k]);
- if(v->pq >= 9 && v->overlap) {
- for(j = 0; j < 64; j++) s->block[k][j] += 128;
- }
- }
-
- vc1_put_block(v, s->block);
- if(v->pq >= 9 && v->overlap) {
- if(!s->first_slice_line) {
- s->dsp.vc1_v_overlap(s->dest[0], s->linesize, 0);
- s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize, 0);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize, s->mb_y&1);
- s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize, s->mb_y&1);
- }
- }
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 1);
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
- if(s->mb_x) {
- s->dsp.vc1_h_overlap(s->dest[0], s->linesize, 0);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 0);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize, s->mb_x&1);
- s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize, s->mb_x&1);
- }
- }
- s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize, 1);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
- }
-
- if(get_bits_count(&s->gb) > v->bits) {
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
-}
-
-/** Decode blocks of I-frame for advanced profile
- */
-static void vc1_decode_i_blocks_adv(VC1Context *v)
-{
- int k, j;
- MpegEncContext *s = &v->s;
- int cbp, val;
- uint8_t *coded_val;
- int mb_pos;
- int mquant = v->pq;
- int mqdiff;
- int overlap;
- GetBitContext *gb = &s->gb;
-
- /* select codingmode used for VLC tables selection */
- switch(v->y_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[v->pq];
- s->c_dc_scale = s->c_dc_scale_table[v->pq];
-
- //do frame decode
- s->mb_x = s->mb_y = 0;
- s->mb_intra = 1;
- s->first_slice_line = 1;
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
- mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
-
- // do actual MB decoding and displaying
- cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
- if(v->acpred_is_raw)
- v->s.ac_pred = get_bits(&v->s.gb, 1);
- else
- v->s.ac_pred = v->acpred_plane[mb_pos];
-
- if(v->condover == CONDOVER_SELECT) {
- if(v->overflg_is_raw)
- overlap = get_bits(&v->s.gb, 1);
- else
- overlap = v->over_flags_plane[mb_pos];
- } else
- overlap = (v->condover == CONDOVER_ALL);
-
- GET_MQUANT();
-
- s->current_picture.qscale_table[mb_pos] = mquant;
-
- for(k = 0; k < 6; k++) {
- val = ((cbp >> (5 - k)) & 1);
-
- if (k < 4) {
- int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
- val = val ^ pred;
- *coded_val = val;
- }
- cbp |= val << (5 - k);
-
- v->a_avail = !s->first_slice_line || (k==2 || k==3);
- v->c_avail = !!s->mb_x || (k==1 || k==3);
-
- vc1_decode_i_block_adv(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant);
-
- s->dsp.vc1_inv_trans_8x8(s->block[k]);
- for(j = 0; j < 64; j++) s->block[k][j] += 128;
- }
-
- vc1_put_block(v, s->block);
- if(overlap) {
- if(!s->first_slice_line) {
- s->dsp.vc1_v_overlap(s->dest[0], s->linesize, 0);
- s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize, 0);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize, s->mb_y&1);
- s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize, s->mb_y&1);
- }
- }
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 1);
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
- if(s->mb_x) {
- s->dsp.vc1_h_overlap(s->dest[0], s->linesize, 0);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 0);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize, s->mb_x&1);
- s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize, s->mb_x&1);
- }
- }
- s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize, 1);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
- }
-
- if(get_bits_count(&s->gb) > v->bits) {
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
-}
-
-static void vc1_decode_p_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- /* select codingmode used for VLC tables selection */
- switch(v->c_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
-
- vc1_decode_p_mb(v);
- if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
-}
-
-static void vc1_decode_b_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- /* select codingmode used for VLC tables selection */
- switch(v->c_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
-
- vc1_decode_b_mb(v);
- if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
-}
-
-static void vc1_decode_skip_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- s->mb_x = 0;
- ff_init_block_index(s);
- ff_update_block_index(s);
- memcpy(s->dest[0], s->last_picture.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16);
- memcpy(s->dest[1], s->last_picture.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
- memcpy(s->dest[2], s->last_picture.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- s->pict_type = P_TYPE;
-}
-
-static void vc1_decode_blocks(VC1Context *v)
-{
-
- v->s.esc3_level_length = 0;
-
- switch(v->s.pict_type) {
- case I_TYPE:
- if(v->profile == PROFILE_ADVANCED)
- vc1_decode_i_blocks_adv(v);
- else
- vc1_decode_i_blocks(v);
- break;
- case P_TYPE:
- if(v->p_frame_skipped)
- vc1_decode_skip_blocks(v);
- else
- vc1_decode_p_blocks(v);
- break;
- case B_TYPE:
- if(v->bi_type)
- vc1_decode_i_blocks(v);
- else
- vc1_decode_b_blocks(v);
- break;
- }
-}
-
-
-/** Initialize a VC1/WMV3 decoder
- * @todo TODO: Handle VC-1 IDUs (Transport level?)
- * @todo TODO: Decypher remaining bits in extra_data
- */
-static int vc1_decode_init(AVCodecContext *avctx)
-{
- VC1Context *v = avctx->priv_data;
- MpegEncContext *s = &v->s;
- GetBitContext gb;
-
- if (!avctx->extradata_size || !avctx->extradata) return -1;
- if (!(avctx->flags & CODEC_FLAG_GRAY))
- avctx->pix_fmt = PIX_FMT_YUV420P;
- else
- avctx->pix_fmt = PIX_FMT_GRAY8;
- v->s.avctx = avctx;
- avctx->flags |= CODEC_FLAG_EMU_EDGE;
- v->s.flags |= CODEC_FLAG_EMU_EDGE;
-
- if(ff_h263_decode_init(avctx) < 0)
- return -1;
- if (vc1_init_common(v) < 0) return -1;
-
- avctx->coded_width = avctx->width;
- avctx->coded_height = avctx->height;
- if (avctx->codec_id == CODEC_ID_WMV3)
- {
- int count = 0;
-
- // looks like WMV3 has a sequence header stored in the extradata
- // advanced sequence header may be before the first frame
- // the last byte of the extradata is a version number, 1 for the
- // samples we can decode
-
- init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8);
-
- if (decode_sequence_header(avctx, &gb) < 0)
- return -1;
-
- count = avctx->extradata_size*8 - get_bits_count(&gb);
- if (count>0)
- {
- av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
- count, get_bits(&gb, count));
- }
- else if (count < 0)
- {
- av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
- }
- } else { // VC1/WVC1
- int edata_size = avctx->extradata_size;
- uint8_t *edata = avctx->extradata;
-
- if(avctx->extradata_size < 16) {
- av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", edata_size);
- return -1;
- }
- while(edata_size > 8) {
- // test if we've found header
- if(BE_32(edata) == 0x0000010F) {
- edata += 4;
- edata_size -= 4;
- break;
- }
- edata_size--;
- edata++;
- }
-
- init_get_bits(&gb, edata, edata_size*8);
-
- if (decode_sequence_header(avctx, &gb) < 0)
- return -1;
-
- while(edata_size > 8) {
- // test if we've found entry point
- if(BE_32(edata) == 0x0000010E) {
- edata += 4;
- edata_size -= 4;
- break;
- }
- edata_size--;
- edata++;
- }
-
- init_get_bits(&gb, edata, edata_size*8);
-
- if (decode_entry_point(avctx, &gb) < 0)
- return -1;
- }
- avctx->has_b_frames= !!(avctx->max_b_frames);
-
- s->mb_width = (avctx->coded_width+15)>>4;
- s->mb_height = (avctx->coded_height+15)>>4;
-
- /* Allocate mb bitplanes */
- v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
- v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
-
- /* allocate block type info in that way so it could be used with s->block_index[] */
- v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
- v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
- v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
- v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
-
- /* Init coded blocks info */
- if (v->profile == PROFILE_ADVANCED)
- {
-// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
-// if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
- }
-
- return 0;
-}
-
-
-/** Decode a VC1/WMV3 frame
- * @todo TODO: Handle VC-1 IDUs (Transport level?)
- */
-static int vc1_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- uint8_t *buf, int buf_size)
-{
- VC1Context *v = avctx->priv_data;
- MpegEncContext *s = &v->s;
- AVFrame *pict = data;
- uint8_t *buf2 = NULL;
-
- /* no supplementary picture */
- if (buf_size == 0) {
- /* special case for last picture */
- if (s->low_delay==0 && s->next_picture_ptr) {
- *pict= *(AVFrame*)s->next_picture_ptr;
- s->next_picture_ptr= NULL;
-
- *data_size = sizeof(AVFrame);
- }
-
- return 0;
- }
-
- //we need to set current_picture_ptr before reading the header, otherwise we cant store anyting im there
- if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){
- int i= ff_find_unused_picture(s, 0);
- s->current_picture_ptr= &s->picture[i];
- }
-
- avctx->has_b_frames= !s->low_delay;
-
- //for advanced profile we need to unescape buffer
- if (avctx->codec_id == CODEC_ID_VC1) {
- int i, buf_size2;
- buf2 = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
- buf_size2 = 0;
- for(i = 0; i < buf_size; i++) {
- if(buf[i] == 3 && i >= 2 && !buf[i-1] && !buf[i-2] && i < buf_size-1 && buf[i+1] < 4) {
- buf2[buf_size2++] = buf[i+1];
- i++;
- } else
- buf2[buf_size2++] = buf[i];
- }
- init_get_bits(&s->gb, buf2, buf_size2*8);
- } else
- init_get_bits(&s->gb, buf, buf_size*8);
- // do parse frame header
- if(v->profile < PROFILE_ADVANCED) {
- if(vc1_parse_frame_header(v, &s->gb) == -1) {
- av_free(buf2);
- return -1;
- }
- } else {
- if(vc1_parse_frame_header_adv(v, &s->gb) == -1) {
- av_free(buf2);
- return -1;
- }
- }
-
- if(s->pict_type != I_TYPE && !v->res_rtm_flag){
- av_free(buf2);
- return -1;
- }
-
- /* skip B frames as they are not decoded correctly */
- if(s->pict_type == B_TYPE){
- av_free(buf2);
- return buf_size;
- }
-
- // for hurry_up==5
- s->current_picture.pict_type= s->pict_type;
- s->current_picture.key_frame= s->pict_type == I_TYPE;
-
- /* skip B-frames if we don't have reference frames */
- if(s->last_picture_ptr==NULL && (s->pict_type==B_TYPE || s->dropable)){
- av_free(buf2);
- return -1;//buf_size;
- }
- /* skip b frames if we are in a hurry */
- if(avctx->hurry_up && s->pict_type==B_TYPE) return -1;//buf_size;
- if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==B_TYPE)
- || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=I_TYPE)
- || avctx->skip_frame >= AVDISCARD_ALL) {
- av_free(buf2);
- return buf_size;
- }
- /* skip everything if we are in a hurry>=5 */
- if(avctx->hurry_up>=5) {
- av_free(buf2);
- return -1;//buf_size;
- }
-
- if(s->next_p_frame_damaged){
- if(s->pict_type==B_TYPE)
- return buf_size;
- else
- s->next_p_frame_damaged=0;
- }
-
- if(MPV_frame_start(s, avctx) < 0) {
- av_free(buf2);
- return -1;
- }
-
- ff_er_frame_start(s);
-
- v->bits = buf_size * 8;
- vc1_decode_blocks(v);
-//av_log(s->avctx, AV_LOG_INFO, "Consumed %i/%i bits\n", get_bits_count(&s->gb), buf_size*8);
-// if(get_bits_count(&s->gb) > buf_size * 8)
-// return -1;
- ff_er_frame_end(s);
-
- MPV_frame_end(s);
-
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
- if (s->pict_type == B_TYPE || s->low_delay) {
- *pict= *(AVFrame*)s->current_picture_ptr;
- } else if (s->last_picture_ptr != NULL) {
- *pict= *(AVFrame*)s->last_picture_ptr;
- }
-
- if(s->last_picture_ptr || s->low_delay){
- *data_size = sizeof(AVFrame);
- ff_print_debug_info(s, pict);
- }
-
- /* Return the Picture timestamp as the frame number */
- /* we substract 1 because it is added on utils.c */
- avctx->frame_number = s->picture_number - 1;
-
- av_free(buf2);
- return buf_size;
-}
-
-
-/** Close a VC1/WMV3 decoder
- * @warning Initial try at using MpegEncContext stuff
- */
-static int vc1_decode_end(AVCodecContext *avctx)
-{
- VC1Context *v = avctx->priv_data;
-
- av_freep(&v->hrd_rate);
- av_freep(&v->hrd_buffer);
- MPV_common_end(&v->s);
- av_freep(&v->mv_type_mb_plane);
- av_freep(&v->direct_mb_plane);
- av_freep(&v->acpred_plane);
- av_freep(&v->over_flags_plane);
- av_freep(&v->mb_type_base);
- return 0;
-}
-
-
-AVCodec vc1_decoder = {
- "vc1",
- CODEC_TYPE_VIDEO,
- CODEC_ID_VC1,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DELAY,
- NULL
-};
-
-AVCodec wmv3_decoder = {
- "wmv3",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV3,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DELAY,
- NULL
-};