* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
* VC-1 and WMV3 decoder
*
*/
-#include "common.h"
#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
+#include "vc1.h"
#include "vc1data.h"
#include "vc1acdata.h"
+#include "msmpeg4data.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];
-/** Markers used if VC-1 AP frame data */
-//@{
-enum VC1Code{
- VC1_CODE_RES0 = 0x00000100,
- VC1_CODE_ENDOFSEQ = 0x0000010A,
- VC1_CODE_SLICE,
- VC1_CODE_FIELD,
- VC1_CODE_FRAME,
- VC1_CODE_ENTRYPOINT,
- VC1_CODE_SEQHDR,
-};
-//@}
-
-/** Available Profiles */
-//@{
-enum Profile {
- PROFILE_SIMPLE,
- PROFILE_MAIN,
- PROFILE_COMPLEX, ///< TODO: WMV9 specific
- PROFILE_ADVANCED
-};
-//@}
-
-/** Sequence quantizer mode */
-//@{
-enum QuantMode {
- QUANT_FRAME_IMPLICIT, ///< Implicitly specified at frame level
- QUANT_FRAME_EXPLICIT, ///< Explicitly specified at frame level
- QUANT_NON_UNIFORM, ///< Non-uniform quant used for all frames
- QUANT_UNIFORM ///< Uniform quant used for all frames
-};
-//@}
-
-/** Where quant can be changed */
-//@{
-enum DQProfile {
- DQPROFILE_FOUR_EDGES,
- DQPROFILE_DOUBLE_EDGES,
- DQPROFILE_SINGLE_EDGE,
- DQPROFILE_ALL_MBS
-};
-//@}
-
-/** @name Where quant can be changed
- */
-//@{
-enum DQSingleEdge {
- DQSINGLE_BEDGE_LEFT,
- DQSINGLE_BEDGE_TOP,
- DQSINGLE_BEDGE_RIGHT,
- DQSINGLE_BEDGE_BOTTOM
-};
-//@}
-
-/** Which pair of edges is quantized with ALTPQUANT */
-//@{
-enum DQDoubleEdge {
- DQDOUBLE_BEDGE_TOPLEFT,
- DQDOUBLE_BEDGE_TOPRIGHT,
- DQDOUBLE_BEDGE_BOTTOMRIGHT,
- DQDOUBLE_BEDGE_BOTTOMLEFT
-};
-//@}
-
-/** MV modes for P frames */
-//@{
-enum MVModes {
- MV_PMODE_1MV_HPEL_BILIN,
- MV_PMODE_1MV,
- MV_PMODE_1MV_HPEL,
- MV_PMODE_MIXED_MV,
- MV_PMODE_INTENSITY_COMP
-};
-//@}
-
-/** @name MV types for B frames */
-//@{
-enum BMVTypes {
- BMV_TYPE_BACKWARD,
- BMV_TYPE_FORWARD,
- BMV_TYPE_INTERPOLATED
-};
-//@}
-
-/** @name Block types for P/B frames */
-//@{
-enum TransformTypes {
- TT_8X8,
- TT_8X4_BOTTOM,
- TT_8X4_TOP,
- TT_8X4, //Both halves
- TT_4X8_RIGHT,
- TT_4X8_LEFT,
- TT_4X8, //Both halves
- TT_4X4
-};
-//@}
-
-/** Table for conversion between TTBLK and TTMB */
-static const int ttblk_to_tt[3][8] = {
- { TT_8X4, TT_4X8, TT_8X8, TT_4X4, TT_8X4_TOP, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT },
- { TT_8X8, TT_4X8_RIGHT, TT_4X8_LEFT, TT_4X4, TT_8X4, TT_4X8, TT_8X4_BOTTOM, TT_8X4_TOP },
- { TT_8X8, TT_4X8, TT_4X4, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT, TT_8X4, TT_8X4_TOP }
-};
-
-static const int ttfrm_to_tt[4] = { TT_8X8, TT_8X4, TT_4X8, TT_4X4 };
-
-/** MV P mode - the 5th element is only used for mode 1 */
-static const uint8_t mv_pmode_table[2][5] = {
- { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_MIXED_MV },
- { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_1MV_HPEL_BILIN }
-};
-static const uint8_t mv_pmode_table2[2][4] = {
- { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV },
- { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_1MV_HPEL_BILIN }
-};
-
-/** One more frame type */
-#define BI_TYPE 7
-
-static const int fps_nr[5] = { 24, 25, 30, 50, 60 },
- fps_dr[2] = { 1000, 1001 };
-static const uint8_t pquant_table[3][32] = {
- { /* Implicit quantizer */
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 11, 12,
- 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 31
- },
- { /* Explicit quantizer, pquantizer uniform */
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
- },
- { /* Explicit quantizer, pquantizer non-uniform */
- 0, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
- 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 31
- }
-};
-
-/** @name VC-1 VLC tables and defines
- * @todo TODO move this into the context
- */
-//@{
-#define VC1_BFRACTION_VLC_BITS 7
-static VLC vc1_bfraction_vlc;
-#define VC1_IMODE_VLC_BITS 4
-static VLC vc1_imode_vlc;
-#define VC1_NORM2_VLC_BITS 3
-static VLC vc1_norm2_vlc;
-#define VC1_NORM6_VLC_BITS 9
-static VLC vc1_norm6_vlc;
-/* Could be optimized, one table only needs 8 bits */
-#define VC1_TTMB_VLC_BITS 9 //12
-static VLC vc1_ttmb_vlc[3];
-#define VC1_MV_DIFF_VLC_BITS 9 //15
-static VLC vc1_mv_diff_vlc[4];
-#define VC1_CBPCY_P_VLC_BITS 9 //14
-static VLC vc1_cbpcy_p_vlc[4];
-#define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6
-static VLC vc1_4mv_block_pattern_vlc[4];
-#define VC1_TTBLK_VLC_BITS 5
-static VLC vc1_ttblk_vlc[3];
-#define VC1_SUBBLKPAT_VLC_BITS 6
-static VLC vc1_subblkpat_vlc[3];
-
-static VLC vc1_ac_coeff_table[8];
-//@}
-
-enum CodingSet {
- CS_HIGH_MOT_INTRA = 0,
- CS_HIGH_MOT_INTER,
- CS_LOW_MOT_INTRA,
- CS_LOW_MOT_INTER,
- CS_MID_RATE_INTRA,
- CS_MID_RATE_INTER,
- CS_HIGH_RATE_INTRA,
- CS_HIGH_RATE_INTER
-};
-
-/** @name Overlap conditions for Advanced Profile */
-//@{
-enum COTypes {
- CONDOVER_NONE = 0,
- CONDOVER_ALL,
- CONDOVER_SELECT
-};
-//@}
-
-
-/** The VC1 Context
- * @fixme Change size wherever another size is more efficient
- * Many members are only used for Advanced Profile
- */
-typedef struct VC1Context{
- MpegEncContext s;
-
- int bits;
-
- /** Simple/Main Profile sequence header */
- //@{
- int res_sm; ///< reserved, 2b
- int res_x8; ///< reserved
- int multires; ///< frame-level RESPIC syntax element present
- int res_fasttx; ///< reserved, always 1
- int res_transtab; ///< reserved, always 0
- int rangered; ///< RANGEREDFRM (range reduction) syntax element present
- ///< at frame level
- int res_rtm_flag; ///< reserved, set to 1
- int reserved; ///< reserved
- //@}
-
- /** Advanced Profile */
- //@{
- int level; ///< 3bits, for Advanced/Simple Profile, provided by TS layer
- int chromaformat; ///< 2bits, 2=4:2:0, only defined
- int postprocflag; ///< Per-frame processing suggestion flag present
- int broadcast; ///< TFF/RFF present
- int interlace; ///< Progressive/interlaced (RPTFTM syntax element)
- int tfcntrflag; ///< TFCNTR present
- int panscanflag; ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present
- int extended_dmv; ///< Additional extended dmv range at P/B frame-level
- int color_prim; ///< 8bits, chroma coordinates of the color primaries
- int transfer_char; ///< 8bits, Opto-electronic transfer characteristics
- int matrix_coef; ///< 8bits, Color primaries->YCbCr transform matrix
- int hrd_param_flag; ///< Presence of Hypothetical Reference
- ///< Decoder parameters
- int psf; ///< Progressive Segmented Frame
- //@}
-
- /** Sequence header data for all Profiles
- * TODO: choose between ints, uint8_ts and monobit flags
- */
- //@{
- int profile; ///< 2bits, Profile
- int frmrtq_postproc; ///< 3bits,
- int bitrtq_postproc; ///< 5bits, quantized framerate-based postprocessing strength
- int fastuvmc; ///< Rounding of qpel vector to hpel ? (not in Simple)
- int extended_mv; ///< Ext MV in P/B (not in Simple)
- int dquant; ///< How qscale varies with MBs, 2bits (not in Simple)
- int vstransform; ///< variable-size [48]x[48] transform type + info
- int overlap; ///< overlapped transforms in use
- int quantizer_mode; ///< 2bits, quantizer mode used for sequence, see QUANT_*
- int finterpflag; ///< INTERPFRM present
- //@}
-
- /** Frame decoding info for all profiles */
- //@{
- uint8_t mv_mode; ///< MV coding monde
- uint8_t mv_mode2; ///< Secondary MV coding mode (B frames)
- int k_x; ///< Number of bits for MVs (depends on MV range)
- int k_y; ///< Number of bits for MVs (depends on MV range)
- int range_x, range_y; ///< MV range
- uint8_t pq, altpq; ///< Current/alternate frame quantizer scale
- /** pquant parameters */
- //@{
- uint8_t dquantfrm;
- uint8_t dqprofile;
- uint8_t dqsbedge;
- uint8_t dqbilevel;
- //@}
- /** AC coding set indexes
- * @see 8.1.1.10, p(1)10
- */
- //@{
- int c_ac_table_index; ///< Chroma index from ACFRM element
- int y_ac_table_index; ///< Luma index from AC2FRM element
- //@}
- int ttfrm; ///< Transform type info present at frame level
- uint8_t ttmbf; ///< Transform type flag
- uint8_t ttblk4x4; ///< Value of ttblk which indicates a 4x4 transform
- int codingset; ///< index of current table set from 11.8 to use for luma block decoding
- int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding
- int pqindex; ///< raw pqindex used in coding set selection
- int a_avail, c_avail;
- uint8_t *mb_type_base, *mb_type[3];
-
-
- /** Luma compensation parameters */
- //@{
- uint8_t lumscale;
- uint8_t lumshift;
- //@}
- int16_t bfraction; ///< Relative position % anchors=> how to scale MVs
- uint8_t halfpq; ///< Uniform quant over image and qp+.5
- uint8_t respic; ///< Frame-level flag for resized images
- int buffer_fullness; ///< HRD info
- /** Ranges:
- * -# 0 -> [-64n 63.f] x [-32, 31.f]
- * -# 1 -> [-128, 127.f] x [-64, 63.f]
- * -# 2 -> [-512, 511.f] x [-128, 127.f]
- * -# 3 -> [-1024, 1023.f] x [-256, 255.f]
- */
- uint8_t mvrange;
- uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use
- VLC *cbpcy_vlc; ///< CBPCY VLC table
- int tt_index; ///< Index for Transform Type tables
- uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV)
- uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs
- int mv_type_is_raw; ///< mv type mb plane is not coded
- int dmb_is_raw; ///< direct mb plane is raw
- int skip_is_raw; ///< skip mb plane is not coded
- uint8_t luty[256], lutuv[256]; // lookup tables used for intensity compensation
- int use_ic; ///< use intensity compensation in B-frames
- int rnd; ///< rounding control
-
- /** Frame decoding info for S/M profiles only */
- //@{
- uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128)
- uint8_t interpfrm;
- //@}
-
- /** Frame decoding info for Advanced profile */
- //@{
- uint8_t fcm; ///< 0->Progressive, 2->Frame-Interlace, 3->Field-Interlace
- uint8_t numpanscanwin;
- uint8_t tfcntr;
- uint8_t rptfrm, tff, rff;
- uint16_t topleftx;
- uint16_t toplefty;
- uint16_t bottomrightx;
- uint16_t bottomrighty;
- uint8_t uvsamp;
- uint8_t postproc;
- int hrd_num_leaky_buckets;
- uint8_t bit_rate_exponent;
- uint8_t buffer_size_exponent;
- uint8_t* acpred_plane; ///< AC prediction flags bitplane
- int acpred_is_raw;
- uint8_t* over_flags_plane; ///< Overflags bitplane
- int overflg_is_raw;
- uint8_t condover;
- uint16_t *hrd_rate, *hrd_buffer;
- uint8_t *hrd_fullness;
- uint8_t range_mapy_flag;
- uint8_t range_mapuv_flag;
- uint8_t range_mapy;
- uint8_t range_mapuv;
- //@}
-
- int p_frame_skipped;
- int bi_type;
-} VC1Context;
/**
* Get unary code of limited length
}
static inline int decode210(GetBitContext *gb){
- int n;
- n = get_bits1(gb);
- if (n == 1)
+ if (get_bits1(gb))
return 0;
else
return 2 - get_bits1(gb);
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);
+ init_vlc(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
+ ff_vc1_bfraction_bits, 1, 1,
+ ff_vc1_bfraction_codes, 1, 1, 1);
+ init_vlc(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
+ ff_vc1_norm2_bits, 1, 1,
+ ff_vc1_norm2_codes, 1, 1, 1);
+ init_vlc(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
+ ff_vc1_norm6_bits, 1, 1,
+ ff_vc1_norm6_codes, 2, 2, 1);
+ init_vlc(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
+ ff_vc1_imode_bits, 1, 1,
+ ff_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);
+ 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, 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, 1);
+ 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, 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);
+ 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, 1);
+ 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, 1);
+ 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, 1);
}
for(i=0; i<8; i++)
- init_vlc(&vc1_ac_coeff_table[i], AC_VLC_BITS, vc1_ac_sizes[i],
+ init_vlc(&ff_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,
height = v->s.mb_height;
stride = v->s.mb_stride;
invert = get_bits(gb, 1);
- imode = get_vlc2(gb, vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
+ imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
*raw_flag = 0;
switch (imode)
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) {
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);
+ 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 += (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);
+ 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;
if(get_bits1(gb))
ar = get_bits(gb, 4);
if(ar && ar < 14){
- v->s.avctx->sample_aspect_ratio = vc1_pixel_aspect[ar];
+ v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
}else if(ar == 15){
w = get_bits(gb, 8);
h = get_bits(gb, 8);
nr = get_bits(gb, 8);
dr = get_bits(gb, 4);
if(nr && nr < 8 && dr && dr < 3){
- v->s.avctx->time_base.num = fps_dr[dr - 1];
- v->s.avctx->time_base.den = fps_nr[nr - 1] * 1000;
+ 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;
}
}
}
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];
+ v->bfraction = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction];
if(v->bfraction == 0) {
v->s.pict_type = BI_TYPE;
}
/* Quantizer stuff */
pqindex = get_bits(gb, 5);
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)
else v->tt_index = 2;
lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
+ v->mv_mode = ff_vc1_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->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_prefix(gb, 1, 3)];
v->lumscale = get_bits(gb, 6);
v->lumshift = get_bits(gb, 6);
v->use_ic = 1;
"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)
{
v->ttmbf = get_bits(gb, 1);
if (v->ttmbf)
{
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
"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)
{
v->ttmbf = get_bits(gb, 1);
if (v->ttmbf)
{
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
v->uvsamp = get_bits1(gb);
if(v->finterpflag) v->interpfrm = get_bits(gb, 1);
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];
+ v->bfraction = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = ff_vc1_bfraction_lut[v->bfraction];
if(v->bfraction == 0) {
v->s.pict_type = BI_TYPE; /* XXX: should not happen here */
}
pqindex = get_bits(gb, 5);
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)
else v->tt_index = 2;
lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
+ v->mv_mode = ff_vc1_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->mv_mode2 = ff_vc1_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 */
"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)
{
av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
v->ttmbf = get_bits(gb, 1);
if (v->ttmbf)
{
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
"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)
{
v->ttmbf = get_bits(gb, 1);
if (v->ttmbf)
{
- v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
}
} else {
v->ttmbf = 1;
* @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,\
+ index = 1 + get_vlc2(gb, ff_vc1_mv_diff_vlc[s->mv_table_index].table,\
VC1_MV_DIFF_VLC_BITS, 2); \
if (index > 36) \
{ \
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;
+ c = (c * s->y_dc_scale_table[q2] * ff_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;
+ a = (a * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
}
if(a_avail && c_avail && (n!=3)) {
int off = mb_pos;
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;
+ b = (b * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
}
if(a_avail && c_avail) {
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);
+ index = get_vlc2(gb, ff_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];
} else {
escape = decode210(gb);
if (escape != 2) {
- index = get_vlc2(gb, vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
+ index = get_vlc2(gb, ff_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(v->s.ac_pred) {
if(!dc_pred_dir)
- zz_table = vc1_horizontal_zz;
+ zz_table = ff_vc1_horizontal_zz;
else
- zz_table = vc1_vertical_zz;
+ zz_table = ff_vc1_vertical_zz;
} else
- zz_table = vc1_normal_zz;
+ zz_table = ff_vc1_normal_zz;
ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
ac_val2 = ac_val;
//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;
+ /* check if AC is needed at all */
if(!a_avail && !c_avail) use_pred = 0;
ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
ac_val2 = ac_val;
if(v->s.ac_pred) {
if(!dc_pred_dir)
- zz_table = vc1_horizontal_zz;
+ zz_table = ff_vc1_horizontal_zz;
else
- zz_table = vc1_vertical_zz;
+ zz_table = ff_vc1_vertical_zz;
} else
- zz_table = vc1_normal_zz;
+ zz_table = ff_vc1_normal_zz;
while (!last) {
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ block[k << 3] += (ac_val[k] * q2 * ff_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;
+ block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
} else {
if(dc_pred_dir) { //left
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
}
} else {//top
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
}
}
const int8_t *zz_table;
int k;
- zz_table = vc1_simple_progressive_8x8_zz;
+ zz_table = ff_vc1_simple_progressive_8x8_zz;
while (!last) {
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ block[k << 3] += (ac_val[k] * q2 * ff_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;
+ block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
} else {
if(dc_pred_dir) { //left
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
}
} else {//top
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
}
}
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)];
+ ttblk = ff_vc1_ttblk_to_tt[v->tt_index][get_vlc2(gb, ff_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);
+ subblkpat = ~(get_vlc2(gb, ff_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(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;
+ scale = 2 * mquant + ((v->pq == mquant) ? v->halfpq : 0);
// convert transforms like 8X4_TOP to generic TT and SUBBLKPAT
if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) {
i += skip;
if(i > 63)
break;
- idx = vc1_simple_progressive_8x8_zz[i++];
+ idx = ff_vc1_simple_progressive_8x8_zz[i++];
block[idx] = value * scale;
if(!v->pquantizer)
block[idx] += (block[idx] < 0) ? -mquant : mquant;
i += skip;
if(i > 15)
break;
- idx = vc1_simple_progressive_4x4_zz[i++];
+ idx = ff_vc1_simple_progressive_4x4_zz[i++];
block[idx + off] = value * scale;
if(!v->pquantizer)
block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
if(i > 31)
break;
if(v->profile < PROFILE_ADVANCED)
- idx = vc1_simple_progressive_8x4_zz[i++];
+ idx = ff_vc1_simple_progressive_8x4_zz[i++];
else
- idx = vc1_adv_progressive_8x4_zz[i++];
+ idx = ff_vc1_adv_progressive_8x4_zz[i++];
block[idx + off] = value * scale;
if(!v->pquantizer)
block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
if(i > 31)
break;
if(v->profile < PROFILE_ADVANCED)
- idx = vc1_simple_progressive_4x8_zz[i++];
+ idx = ff_vc1_simple_progressive_4x8_zz[i++];
else
- idx = vc1_adv_progressive_4x8_zz[i++];
+ idx = ff_vc1_adv_progressive_4x8_zz[i++];
block[idx + off] = value * scale;
if(!v->pquantizer)
block[idx + off] += (block[idx + off] < 0) ? -mquant : 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,
+ ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table,
VC1_TTMB_VLC_BITS, 2);
if(!s->mb_intra) vc1_mc_1mv(v, 0);
dst_idx = 0;
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);
+ ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
for (i=0; i<6; i++)
{
dst_idx += i >> 2;
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);
+ ttmb = get_vlc2(gb, ff_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);
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);
+ ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
}
}
dst_idx = 0;
}
}
-#define IS_MARKER(x) (((x) & ~0xFF) == VC1_CODE_RES0)
-
/** Find VC-1 marker in buffer
* @return position where next marker starts or end of buffer if no marker found
*/
return 0;
}
- //we need to set current_picture_ptr before reading the header, otherwise we cant store anyting im there
+ /* We need to set current_picture_ptr before reading the header,
+ * otherwise we cannot store anything in 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];
CODEC_CAP_DELAY,
NULL
};
-
-#ifdef CONFIG_VC1_PARSER
-/**
- * finds the end of the current frame in the bitstream.
- * @return the position of the first byte of the next frame, or -1
- */
-static int vc1_find_frame_end(ParseContext *pc, const uint8_t *buf,
- int buf_size) {
- int pic_found, i;
- uint32_t state;
-
- pic_found= pc->frame_start_found;
- state= pc->state;
-
- i=0;
- if(!pic_found){
- for(i=0; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if(state == VC1_CODE_FRAME || state == VC1_CODE_FIELD){
- i++;
- pic_found=1;
- break;
- }
- }
- }
-
- if(pic_found){
- /* EOF considered as end of frame */
- if (buf_size == 0)
- return 0;
- for(; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if(IS_MARKER(state) && state != VC1_CODE_FIELD && state != VC1_CODE_SLICE){
- pc->frame_start_found=0;
- pc->state=-1;
- return i-3;
- }
- }
- }
- pc->frame_start_found= pic_found;
- pc->state= state;
- return END_NOT_FOUND;
-}
-
-static int vc1_parse(AVCodecParserContext *s,
- AVCodecContext *avctx,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size)
-{
- ParseContext *pc = s->priv_data;
- int next;
-
- if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
- next= buf_size;
- }else{
- next= vc1_find_frame_end(pc, buf, buf_size);
-
- if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
- *poutbuf = NULL;
- *poutbuf_size = 0;
- return buf_size;
- }
- }
- *poutbuf = (uint8_t *)buf;
- *poutbuf_size = buf_size;
- return next;
-}
-
-static int vc1_split(AVCodecContext *avctx,
- const uint8_t *buf, int buf_size)
-{
- int i;
- uint32_t state= -1;
-
- for(i=0; i<buf_size; i++){
- state= (state<<8) | buf[i];
- if(IS_MARKER(state) && state != VC1_CODE_SEQHDR && state != VC1_CODE_ENTRYPOINT)
- return i-3;
- }
- return 0;
-}
-
-AVCodecParser vc1_parser = {
- { CODEC_ID_VC1 },
- sizeof(ParseContext1),
- NULL,
- vc1_parse,
- ff_parse1_close,
- vc1_split,
-};
-#endif /* CONFIG_VC1_PARSER */
projects / ffmpeg / blobdiff