/*****************************************************************************
- * cabac.c: h264 encoder library
+ * cabac.c: cabac bitstream writing
*****************************************************************************
- * Copyright (C) 2003-2008 x264 project
+ * Copyright (C) 2003-2011 x264 project
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Loren Merritt <lorenm@u.washington.edu>
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at licensing@x264.com.
*****************************************************************************/
#include "common/common.h"
{
x264_cabac_encode_decision_noup( cb, ctx0, 0 );
}
+#if !RDO_SKIP_BS
else if( i_mb_type == I_PCM )
{
x264_cabac_encode_decision_noup( cb, ctx0, 1 );
x264_cabac_encode_flush( h, cb );
}
+#endif
else
{
int i_pred = x264_mb_pred_mode16x16_fix[h->mb.i_intra16x16_pred_mode];
else
{
x264_cabac_encode_decision( cb, ctx2, 1 );
- x264_cabac_encode_decision_noup( cb, ctx3, h->mb.i_cbp_chroma != 1 );
+ x264_cabac_encode_decision_noup( cb, ctx3, h->mb.i_cbp_chroma>>1 );
}
x264_cabac_encode_decision( cb, ctx4, i_pred>>1 );
x264_cabac_encode_decision_noup( cb, ctx5, i_pred&1 );
}
}
+#if !RDO_SKIP_BS
+static void x264_cabac_field_decoding_flag( x264_t *h, x264_cabac_t *cb )
+{
+ int ctx = 0;
+ ctx += h->mb.field_decoding_flag & !!h->mb.i_mb_x;
+ ctx += (h->mb.i_mb_top_mbpair_xy >= 0
+ && h->mb.slice_table[h->mb.i_mb_top_mbpair_xy] == h->sh.i_first_mb
+ && h->mb.field[h->mb.i_mb_top_mbpair_xy]);
+
+ x264_cabac_encode_decision_noup( cb, 70 + ctx, MB_INTERLACED );
+ h->mb.field_decoding_flag = MB_INTERLACED;
+}
+#endif
+
static void x264_cabac_mb_type( x264_t *h, x264_cabac_t *cb )
{
const int i_mb_type = h->mb.i_type;
- if( h->sh.b_mbaff &&
+#if !RDO_SKIP_BS
+ if( SLICE_MBAFF &&
(!(h->mb.i_mb_y & 1) || IS_SKIP(h->mb.type[h->mb.i_mb_xy - h->mb.i_mb_stride])) )
{
- x264_cabac_encode_decision_noup( cb, 70 + h->mb.cache.i_neighbour_interlaced, h->mb.b_interlaced );
+ x264_cabac_field_decoding_flag( h, cb );
}
+#endif
if( h->sh.i_type == SLICE_TYPE_I )
{
int ctx = 0;
- if( h->mb.i_mb_type_left >= 0 && h->mb.i_mb_type_left != I_4x4 )
+ if( (h->mb.i_neighbour & MB_LEFT) && h->mb.i_mb_type_left[0] != I_4x4 )
ctx++;
- if( h->mb.i_mb_type_top >= 0 && h->mb.i_mb_type_top != I_4x4 )
+ if( (h->mb.i_neighbour & MB_TOP) && h->mb.i_mb_type_top != I_4x4 )
ctx++;
x264_cabac_mb_type_intra( h, cb, i_mb_type, 3+ctx, 3+3, 3+4, 3+5, 3+6, 3+7 );
/* prefix: 14, suffix: 17 */
if( i_mb_type == P_L0 )
{
- if( h->mb.i_partition == D_16x16 )
- {
- x264_cabac_encode_decision_noup( cb, 14, 0 );
- x264_cabac_encode_decision_noup( cb, 15, 0 );
- x264_cabac_encode_decision_noup( cb, 16, 0 );
- }
- else if( h->mb.i_partition == D_16x8 )
- {
- x264_cabac_encode_decision_noup( cb, 14, 0 );
- x264_cabac_encode_decision_noup( cb, 15, 1 );
- x264_cabac_encode_decision_noup( cb, 17, 1 );
- }
- else if( h->mb.i_partition == D_8x16 )
- {
- x264_cabac_encode_decision_noup( cb, 14, 0 );
- x264_cabac_encode_decision_noup( cb, 15, 1 );
- x264_cabac_encode_decision_noup( cb, 17, 0 );
- }
+ x264_cabac_encode_decision_noup( cb, 14, 0 );
+ x264_cabac_encode_decision_noup( cb, 15, h->mb.i_partition != D_16x16 );
+ x264_cabac_encode_decision_noup( cb, 17-(h->mb.i_partition == D_16x16), h->mb.i_partition == D_16x8 );
}
else if( i_mb_type == P_8x8 )
{
x264_cabac_mb_type_intra( h, cb, i_mb_type, 17+0, 17+1, 17+2, 17+2, 17+3, 17+3 );
}
}
- else if( h->sh.i_type == SLICE_TYPE_B )
+ else //if( h->sh.i_type == SLICE_TYPE_B )
{
int ctx = 0;
- if( h->mb.i_mb_type_left >= 0 && h->mb.i_mb_type_left != B_SKIP && h->mb.i_mb_type_left != B_DIRECT )
+ if( (h->mb.i_neighbour & MB_LEFT) && h->mb.i_mb_type_left[0] != B_SKIP && h->mb.i_mb_type_left[0] != B_DIRECT )
ctx++;
- if( h->mb.i_mb_type_top >= 0 && h->mb.i_mb_type_top != B_SKIP && h->mb.i_mb_type_top != B_DIRECT )
+ if( (h->mb.i_neighbour & MB_TOP) && h->mb.i_mb_type_top != B_SKIP && h->mb.i_mb_type_top != B_DIRECT )
ctx++;
if( i_mb_type == B_DIRECT )
+ {
x264_cabac_encode_decision_noup( cb, 27+ctx, 0 );
- else if( i_mb_type == B_8x8 )
+ return;
+ }
+ x264_cabac_encode_decision_noup( cb, 27+ctx, 1 );
+
+ if( i_mb_type == B_8x8 )
{
- x264_cabac_encode_decision_noup( cb, 27+ctx, 1 );
x264_cabac_encode_decision_noup( cb, 27+3, 1 );
x264_cabac_encode_decision_noup( cb, 27+4, 1 );
x264_cabac_encode_decision( cb, 27+5, 1 );
else if( IS_INTRA( i_mb_type ) )
{
/* prefix */
- x264_cabac_encode_decision_noup( cb, 27+ctx, 1 );
x264_cabac_encode_decision_noup( cb, 27+3, 1 );
x264_cabac_encode_decision_noup( cb, 27+4, 1 );
x264_cabac_encode_decision( cb, 27+5, 1 );
}
else
{
- static const int i_mb_len[9*3] =
+ static const uint8_t i_mb_bits[9*3] =
{
- 6, 6, 3, /* L0 L0 */
- 6, 6, 0, /* L0 L1 */
- 7, 7, 0, /* L0 BI */
- 6, 6, 0, /* L1 L0 */
- 6, 6, 3, /* L1 L1 */
- 7, 7, 0, /* L1 BI */
- 7, 7, 0, /* BI L0 */
- 7, 7, 0, /* BI L1 */
- 7, 7, 6, /* BI BI */
- };
- static const int i_mb_bits[9*3][7] =
- {
- { 1,1,0,0,0,1 }, { 1,1,0,0,1,0, }, { 1,0,0 }, /* L0 L0 */
- { 1,1,0,1,0,1 }, { 1,1,0,1,1,0 }, {0}, /* L0 L1 */
- { 1,1,1,0,0,0,0 }, { 1,1,1,0,0,0,1 }, {0}, /* L0 BI */
- { 1,1,0,1,1,1 }, { 1,1,1,1,1,0 }, {0}, /* L1 L0 */
- { 1,1,0,0,1,1 }, { 1,1,0,1,0,0 }, { 1,0,1 }, /* L1 L1 */
- { 1,1,1,0,0,1,0 }, { 1,1,1,0,0,1,1 }, {0}, /* L1 BI */
- { 1,1,1,0,1,0,0 }, { 1,1,1,0,1,0,1 }, {0}, /* BI L0 */
- { 1,1,1,0,1,1,0 }, { 1,1,1,0,1,1,1 }, {0}, /* BI L1 */
- { 1,1,1,1,0,0,0 }, { 1,1,1,1,0,0,1 }, { 1,1,0,0,0,0 }, /* BI BI */
+ 0x31, 0x29, 0x4, /* L0 L0 */
+ 0x35, 0x2d, 0, /* L0 L1 */
+ 0x43, 0x63, 0, /* L0 BI */
+ 0x3d, 0x2f, 0, /* L1 L0 */
+ 0x39, 0x25, 0x6, /* L1 L1 */
+ 0x53, 0x73, 0, /* L1 BI */
+ 0x4b, 0x6b, 0, /* BI L0 */
+ 0x5b, 0x7b, 0, /* BI L1 */
+ 0x47, 0x67, 0x21 /* BI BI */
};
const int idx = (i_mb_type - B_L0_L0) * 3 + (h->mb.i_partition - D_16x8);
- int i;
+ int bits = i_mb_bits[idx];
- x264_cabac_encode_decision_noup( cb, 27+ctx, i_mb_bits[idx][0] );
- x264_cabac_encode_decision_noup( cb, 27+3, i_mb_bits[idx][1] );
- x264_cabac_encode_decision( cb, 27+5-i_mb_bits[idx][1], i_mb_bits[idx][2] );
- for( i = 3; i < i_mb_len[idx]; i++ )
- x264_cabac_encode_decision( cb, 27+5, i_mb_bits[idx][i] );
+ x264_cabac_encode_decision_noup( cb, 27+3, bits&1 );
+ x264_cabac_encode_decision( cb, 27+5-(bits&1), (bits>>1)&1 ); bits >>= 2;
+ if( bits != 1 )
+ {
+ x264_cabac_encode_decision( cb, 27+5, bits&1 ); bits >>= 1;
+ x264_cabac_encode_decision( cb, 27+5, bits&1 ); bits >>= 1;
+ x264_cabac_encode_decision( cb, 27+5, bits&1 ); bits >>= 1;
+ if( bits != 1 )
+ x264_cabac_encode_decision_noup( cb, 27+5, bits&1 );
+ }
}
}
- else
- {
- x264_log(h, X264_LOG_ERROR, "unknown SLICE_TYPE unsupported in x264_macroblock_write_cabac\n" );
- }
}
static void x264_cabac_mb_intra4x4_pred_mode( x264_cabac_t *cb, int i_pred, int i_mode )
i_mode--;
x264_cabac_encode_decision( cb, 69, (i_mode )&0x01 );
x264_cabac_encode_decision( cb, 69, (i_mode >> 1)&0x01 );
- x264_cabac_encode_decision( cb, 69, (i_mode >> 2)&0x01 );
+ x264_cabac_encode_decision( cb, 69, (i_mode >> 2) );
}
}
static void x264_cabac_mb_intra_chroma_pred_mode( x264_t *h, x264_cabac_t *cb )
{
- const int i_mode = x264_mb_pred_mode8x8c_fix[ h->mb.i_chroma_pred_mode ];
+ const int i_mode = x264_mb_pred_mode8x8c_fix[h->mb.i_chroma_pred_mode];
int ctx = 0;
/* No need to test for I4x4 or I_16x16 as cache_save handle that */
- if( (h->mb.i_neighbour & MB_LEFT) && h->mb.chroma_pred_mode[h->mb.i_mb_xy - 1] != 0 )
+ if( (h->mb.i_neighbour & MB_LEFT) && h->mb.chroma_pred_mode[h->mb.i_mb_left_xy[0]] != 0 )
ctx++;
if( (h->mb.i_neighbour & MB_TOP) && h->mb.chroma_pred_mode[h->mb.i_mb_top_xy] != 0 )
ctx++;
static void x264_cabac_mb_cbp_luma( x264_t *h, x264_cabac_t *cb )
{
int cbp = h->mb.i_cbp_luma;
- int cbp_l = h->mb.i_neighbour & MB_LEFT ? h->mb.cbp[h->mb.i_mb_xy - 1] : -1;
- int cbp_t = h->mb.i_neighbour & MB_TOP ? h->mb.cbp[h->mb.i_mb_top_xy] : -1;
- x264_cabac_encode_decision( cb, 76 - ((cbp_l >> 1) & 1) - ((cbp_t >> 1) & 2), (h->mb.i_cbp_luma >> 0) & 1 );
- x264_cabac_encode_decision( cb, 76 - ((cbp >> 0) & 1) - ((cbp_t >> 2) & 2), (h->mb.i_cbp_luma >> 1) & 1 );
- x264_cabac_encode_decision( cb, 76 - ((cbp_l >> 3) & 1) - ((cbp << 1) & 2), (h->mb.i_cbp_luma >> 2) & 1 );
- x264_cabac_encode_decision_noup( cb, 76 - ((cbp >> 2) & 1) - ((cbp >> 0) & 2), (h->mb.i_cbp_luma >> 3) & 1 );
+ int cbp_l = h->mb.cache.i_cbp_left;
+ int cbp_t = h->mb.cache.i_cbp_top;
+ x264_cabac_encode_decision ( cb, 76 - ((cbp_l >> 1) & 1) - ((cbp_t >> 1) & 2), (cbp >> 0) & 1 );
+ x264_cabac_encode_decision ( cb, 76 - ((cbp >> 0) & 1) - ((cbp_t >> 2) & 2), (cbp >> 1) & 1 );
+ x264_cabac_encode_decision ( cb, 76 - ((cbp_l >> 3) & 1) - ((cbp << 1) & 2), (cbp >> 2) & 1 );
+ x264_cabac_encode_decision_noup( cb, 76 - ((cbp >> 2) & 1) - ((cbp >> 0) & 2), (cbp >> 3) & 1 );
}
static void x264_cabac_mb_cbp_chroma( x264_t *h, x264_cabac_t *cb )
{
- int cbp_a = -1;
- int cbp_b = -1;
- int ctx;
-
- /* No need to test for SKIP/PCM */
- if( h->mb.i_neighbour & MB_LEFT )
- cbp_a = (h->mb.cbp[h->mb.i_mb_xy - 1] >> 4)&0x3;
+ int cbp_a = h->mb.cache.i_cbp_left & 0x30;
+ int cbp_b = h->mb.cache.i_cbp_top & 0x30;
+ int ctx = 0;
- if( h->mb.i_neighbour & MB_TOP )
- cbp_b = (h->mb.cbp[h->mb.i_mb_top_xy] >> 4)&0x3;
-
- ctx = 0;
- if( cbp_a > 0 ) ctx++;
- if( cbp_b > 0 ) ctx += 2;
+ if( cbp_a && h->mb.cache.i_cbp_left != -1 ) ctx++;
+ if( cbp_b && h->mb.cache.i_cbp_top != -1 ) ctx+=2;
if( h->mb.i_cbp_chroma == 0 )
x264_cabac_encode_decision_noup( cb, 77 + ctx, 0 );
else
x264_cabac_encode_decision_noup( cb, 77 + ctx, 1 );
ctx = 4;
- if( cbp_a == 2 ) ctx++;
- if( cbp_b == 2 ) ctx += 2;
- x264_cabac_encode_decision_noup( cb, 77 + ctx, h->mb.i_cbp_chroma > 1 );
+ if( cbp_a == 0x20 ) ctx++;
+ if( cbp_b == 0x20 ) ctx += 2;
+ x264_cabac_encode_decision_noup( cb, 77 + ctx, h->mb.i_cbp_chroma >> 1 );
}
}
static void x264_cabac_mb_qp_delta( x264_t *h, x264_cabac_t *cb )
{
- int i_mbn_xy = h->mb.i_mb_prev_xy;
int i_dqp = h->mb.i_qp - h->mb.i_last_qp;
int ctx;
i_dqp = 0;
}
- /* No need to test for PCM / SKIP */
- ctx = h->mb.i_last_dqp &&
- ( h->mb.type[i_mbn_xy] == I_16x16 || (h->mb.cbp[i_mbn_xy]&0x3f) );
+ /* Since, per the above, empty-CBP I16x16 blocks never have delta quants,
+ * we don't have to check for them. */
+ ctx = h->mb.i_last_dqp && h->mb.cbp[h->mb.i_mb_prev_xy];
if( i_dqp != 0 )
{
int val = i_dqp <= 0 ? (-2*i_dqp) : (2*i_dqp - 1);
- /* dqp is interpreted modulo 52 */
- if( val >= 51 && val != 52 )
- val = 103 - val;
- while( val-- )
+ /* dqp is interpreted modulo (QP_MAX_SPEC+1) */
+ if( val >= QP_MAX_SPEC && val != QP_MAX_SPEC+1 )
+ val = 2*QP_MAX_SPEC+1 - val;
+ do
{
x264_cabac_encode_decision( cb, 60 + ctx, 1 );
ctx = 2+(ctx>>1);
- }
+ } while( --val );
}
x264_cabac_encode_decision_noup( cb, 60 + ctx, 0 );
}
#if !RDO_SKIP_BS
void x264_cabac_mb_skip( x264_t *h, int b_skip )
{
- int ctx = (h->mb.i_mb_type_left >= 0 && !IS_SKIP( h->mb.i_mb_type_left ))
- + (h->mb.i_mb_type_top >= 0 && !IS_SKIP( h->mb.i_mb_type_top ))
- + (h->sh.i_type == SLICE_TYPE_P ? 11 : 24);
+ int ctx = h->mb.cache.i_neighbour_skip + 11;
+ if( h->sh.i_type != SLICE_TYPE_P )
+ ctx += 13;
x264_cabac_encode_decision( &h->cabac, ctx, b_skip );
}
#endif
static inline void x264_cabac_mb_sub_p_partition( x264_cabac_t *cb, int i_sub )
{
if( i_sub == D_L0_8x8 )
- x264_cabac_encode_decision( cb, 21, 1 );
- else if( i_sub == D_L0_8x4 )
{
- x264_cabac_encode_decision( cb, 21, 0 );
- x264_cabac_encode_decision( cb, 22, 0 );
- }
- else if( i_sub == D_L0_4x8 )
- {
- x264_cabac_encode_decision( cb, 21, 0 );
- x264_cabac_encode_decision( cb, 22, 1 );
- x264_cabac_encode_decision( cb, 23, 1 );
+ x264_cabac_encode_decision( cb, 21, 1 );
+ return;
}
- else if( i_sub == D_L0_4x4 )
+ x264_cabac_encode_decision( cb, 21, 0 );
+ if( i_sub == D_L0_8x4 )
+ x264_cabac_encode_decision( cb, 22, 0 );
+ else
{
- x264_cabac_encode_decision( cb, 21, 0 );
x264_cabac_encode_decision( cb, 22, 1 );
- x264_cabac_encode_decision( cb, 23, 0 );
+ x264_cabac_encode_decision( cb, 23, i_sub == D_L0_4x8 );
}
}
-static NOINLINE void x264_cabac_mb_sub_b_partition( x264_cabac_t *cb, int i_sub )
+static ALWAYS_INLINE void x264_cabac_mb_sub_b_partition( x264_cabac_t *cb, int i_sub )
{
- static const uint8_t part_bits[12][7] = {
- {6,1,1,1,0,1,1}, // D_L0_4x4
- {5,1,1,0,0,1}, // D_L0_8x4
- {5,1,1,0,1,0}, // D_L0_4x8
- {3,1,0,0}, // D_L0_8x8
- {5,1,1,1,1,0}, // D_L1_4x4
- {5,1,1,0,1,1}, // D_L1_8x4
- {6,1,1,1,0,0,0}, // D_L1_4x8
- {3,1,0,1}, // D_L1_8x8
- {5,1,1,1,1,1}, // D_BI_4x4
- {6,1,1,1,0,0,1}, // D_BI_8x4
- {6,1,1,1,0,1,0}, // D_BI_4x8
- {5,1,1,0,0,0}, // D_BI_8x8
- };
- int len;
if( i_sub == D_DIRECT_8x8 )
{
x264_cabac_encode_decision( cb, 36, 0 );
return;
}
- len = part_bits[i_sub][0];
- x264_cabac_encode_decision( cb, 36, part_bits[i_sub][1] );
- x264_cabac_encode_decision( cb, 37, part_bits[i_sub][2] );
- if( len == 3 )
- x264_cabac_encode_decision( cb, 39, part_bits[i_sub][3] );
- else
+ x264_cabac_encode_decision( cb, 36, 1 );
+ if( i_sub == D_BI_8x8 )
{
- x264_cabac_encode_decision( cb, 38, part_bits[i_sub][3] );
- x264_cabac_encode_decision( cb, 39, part_bits[i_sub][4] );
- x264_cabac_encode_decision( cb, 39, part_bits[i_sub][5] );
- if( len == 6 )
- x264_cabac_encode_decision( cb, 39, part_bits[i_sub][6] );
+ x264_cabac_encode_decision( cb, 37, 1 );
+ x264_cabac_encode_decision( cb, 38, 0 );
+ x264_cabac_encode_decision( cb, 39, 0 );
+ x264_cabac_encode_decision( cb, 39, 0 );
+ return;
}
+ x264_cabac_encode_decision( cb, 37, 0 );
+ x264_cabac_encode_decision( cb, 39, i_sub == D_L1_8x8 );
}
-static inline void x264_cabac_mb_transform_size( x264_t *h, x264_cabac_t *cb )
+static ALWAYS_INLINE void x264_cabac_mb_transform_size( x264_t *h, x264_cabac_t *cb )
{
int ctx = 399 + h->mb.cache.i_neighbour_transform_size;
x264_cabac_encode_decision_noup( cb, ctx, h->mb.b_transform_8x8 );
const int i8 = x264_scan8[idx];
const int i_refa = h->mb.cache.ref[i_list][i8 - 1];
const int i_refb = h->mb.cache.ref[i_list][i8 - 8];
- int i_ref = h->mb.cache.ref[i_list][i8];
- int ctx = 0;
+ int ctx = 0;
- if( i_refa > 0 && !h->mb.cache.skip[i8 - 1])
+ if( i_refa > 0 && !h->mb.cache.skip[i8 - 1] )
ctx++;
- if( i_refb > 0 && !h->mb.cache.skip[i8 - 8])
+ if( i_refb > 0 && !h->mb.cache.skip[i8 - 8] )
ctx += 2;
- while( i_ref > 0 )
+ for( int i_ref = h->mb.cache.ref[i_list][i8]; i_ref > 0; i_ref-- )
{
x264_cabac_encode_decision( cb, 54 + ctx, 1 );
ctx = (ctx>>2)+4;
- i_ref--;
}
x264_cabac_encode_decision( cb, 54 + ctx, 0 );
}
-static inline void x264_cabac_mb_mvd_cpn( x264_t *h, x264_cabac_t *cb, int i_list, int idx, int l, int mvd )
+static ALWAYS_INLINE int x264_cabac_mb_mvd_cpn( x264_t *h, x264_cabac_t *cb, int i_list, int idx, int l, int mvd, int ctx )
{
- static const uint8_t ctxes[9] = { 0,3,4,5,6,6,6,6,6 };
- const int amvd = abs( h->mb.cache.mvd[i_list][x264_scan8[idx] - 1][l] ) +
- abs( h->mb.cache.mvd[i_list][x264_scan8[idx] - 8][l] );
const int i_abs = abs( mvd );
const int ctxbase = l ? 47 : 40;
- int ctx = (amvd>2) + (amvd>32);
- int i;
-
+#if RDO_SKIP_BS
if( i_abs == 0 )
x264_cabac_encode_decision( cb, ctxbase + ctx, 0 );
- else if( i_abs < 9 )
+ else
{
x264_cabac_encode_decision( cb, ctxbase + ctx, 1 );
-#if RDO_SKIP_BS
- if( i_abs > 4 )
+ if( i_abs <= 3 )
{
- for( i = 1; i < 4; i++ )
- x264_cabac_encode_decision( cb, ctxbase + ctxes[i], 1 );
- cb->f8_bits_encoded += cabac_size_unary[i_abs - 3][cb->state[ctxbase+6]];
- cb->state[ctxbase+6] = cabac_transition_unary[i_abs - 3][cb->state[ctxbase+6]];
+ for( int i = 1; i < i_abs; i++ )
+ x264_cabac_encode_decision( cb, ctxbase + i + 2, 1 );
+ x264_cabac_encode_decision( cb, ctxbase + i_abs + 2, 0 );
+ x264_cabac_encode_bypass( cb, mvd >> 31 );
}
else
-#endif
{
- for( i = 1; i < i_abs; i++ )
- x264_cabac_encode_decision( cb, ctxbase + ctxes[i], 1 );
- x264_cabac_encode_decision( cb, ctxbase + ctxes[i_abs], 0 );
- x264_cabac_encode_bypass( cb, mvd < 0 );
+ x264_cabac_encode_decision( cb, ctxbase + 3, 1 );
+ x264_cabac_encode_decision( cb, ctxbase + 4, 1 );
+ x264_cabac_encode_decision( cb, ctxbase + 5, 1 );
+ if( i_abs < 9 )
+ {
+ cb->f8_bits_encoded += cabac_size_unary[i_abs - 3][cb->state[ctxbase+6]];
+ cb->state[ctxbase+6] = cabac_transition_unary[i_abs - 3][cb->state[ctxbase+6]];
+ }
+ else
+ {
+ cb->f8_bits_encoded += cabac_size_5ones[cb->state[ctxbase+6]];
+ cb->state[ctxbase+6] = cabac_transition_5ones[cb->state[ctxbase+6]];
+ x264_cabac_encode_ue_bypass( cb, 3, i_abs - 9 );
+ }
}
}
+#else
+ static const uint8_t ctxes[8] = { 3,4,5,6,6,6,6,6 };
+
+ if( i_abs == 0 )
+ x264_cabac_encode_decision( cb, ctxbase + ctx, 0 );
else
{
x264_cabac_encode_decision( cb, ctxbase + ctx, 1 );
-#if RDO_SKIP_BS
- for( i = 1; i < 4; i++ )
- x264_cabac_encode_decision( cb, ctxbase + ctxes[i], 1 );
- cb->f8_bits_encoded += cabac_size_5ones[cb->state[ctxbase+6]];
- cb->state[ctxbase+6] = cabac_transition_5ones[cb->state[ctxbase+6]];
- x264_cabac_encode_ue_bypass( cb, 3, i_abs - 9 );
-#else
- for( i = 1; i < 9; i++ )
- x264_cabac_encode_decision( cb, ctxbase + ctxes[i], 1 );
- x264_cabac_encode_ue_bypass( cb, 3, i_abs - 9 );
- x264_cabac_encode_bypass( cb, mvd < 0 );
-#endif
+ if( i_abs < 9 )
+ {
+ for( int i = 1; i < i_abs; i++ )
+ x264_cabac_encode_decision( cb, ctxbase + ctxes[i-1], 1 );
+ x264_cabac_encode_decision( cb, ctxbase + ctxes[i_abs-1], 0 );
+ }
+ else
+ {
+ for( int i = 1; i < 9; i++ )
+ x264_cabac_encode_decision( cb, ctxbase + ctxes[i-1], 1 );
+ x264_cabac_encode_ue_bypass( cb, 3, i_abs - 9 );
+ }
+ x264_cabac_encode_bypass( cb, mvd >> 31 );
}
+#endif
+ /* Since we don't need to keep track of MVDs larger than 66, just cap the value.
+ * This lets us store MVDs as 8-bit values instead of 16-bit. */
+ return X264_MIN( i_abs, 66 );
}
-static inline void x264_cabac_mb_mvd( x264_t *h, x264_cabac_t *cb, int i_list, int idx, int width, int height )
+static NOINLINE uint16_t x264_cabac_mb_mvd( x264_t *h, x264_cabac_t *cb, int i_list, int idx, int width )
{
- DECLARE_ALIGNED_4( int16_t mvp[2] );
+ ALIGNED_4( int16_t mvp[2] );
int mdx, mdy;
/* Calculate mvd */
x264_mb_predict_mv( h, i_list, idx, width, mvp );
mdx = h->mb.cache.mv[i_list][x264_scan8[idx]][0] - mvp[0];
mdy = h->mb.cache.mv[i_list][x264_scan8[idx]][1] - mvp[1];
+ uint16_t amvd = x264_cabac_mvd_sum(h->mb.cache.mvd[i_list][x264_scan8[idx] - 1],
+ h->mb.cache.mvd[i_list][x264_scan8[idx] - 8]);
/* encode */
- x264_cabac_mb_mvd_cpn( h, cb, i_list, idx, 0, mdx );
- x264_cabac_mb_mvd_cpn( h, cb, i_list, idx, 1, mdy );
+ mdx = x264_cabac_mb_mvd_cpn( h, cb, i_list, idx, 0, mdx, amvd&0xFF );
+ mdy = x264_cabac_mb_mvd_cpn( h, cb, i_list, idx, 1, mdy, amvd>>8 );
- /* save value */
- x264_macroblock_cache_mvd( h, block_idx_x[idx], block_idx_y[idx], width, height, i_list, pack16to32_mask(mdx,mdy) );
+ return pack8to16(mdx,mdy);
}
-static inline void x264_cabac_mb8x8_mvd( x264_t *h, x264_cabac_t *cb, int i_list, int i )
-{
- if( !x264_mb_partition_listX_table[i_list][ h->mb.i_sub_partition[i] ] )
- return;
+#define x264_cabac_mb_mvd(h,cb,i_list,idx,width,height)\
+do\
+{\
+ uint16_t mvd = x264_cabac_mb_mvd(h,cb,i_list,idx,width);\
+ x264_macroblock_cache_mvd( h, block_idx_x[idx], block_idx_y[idx], width, height, i_list, mvd );\
+} while(0)
+static inline void x264_cabac_mb8x8_mvd( x264_t *h, x264_cabac_t *cb, int i )
+{
switch( h->mb.i_sub_partition[i] )
{
case D_L0_8x8:
- case D_L1_8x8:
- case D_BI_8x8:
- x264_cabac_mb_mvd( h, cb, i_list, 4*i, 2, 2 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i, 2, 2 );
break;
case D_L0_8x4:
- case D_L1_8x4:
- case D_BI_8x4:
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+0, 2, 1 );
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+2, 2, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+0, 2, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+2, 2, 1 );
break;
case D_L0_4x8:
- case D_L1_4x8:
- case D_BI_4x8:
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+0, 1, 2 );
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+1, 1, 2 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+0, 1, 2 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+1, 1, 2 );
break;
case D_L0_4x4:
- case D_L1_4x4:
- case D_BI_4x4:
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+0, 1, 1 );
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+1, 1, 1 );
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+2, 1, 1 );
- x264_cabac_mb_mvd( h, cb, i_list, 4*i+3, 1, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+0, 1, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+1, 1, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+2, 1, 1 );
+ x264_cabac_mb_mvd( h, cb, 0, 4*i+3, 1, 1 );
break;
+ default:
+ assert(0);
}
}
-/* i_ctxBlockCat: 0-> DC 16x16 i_idx = 0
+/* ctx_block_cat: 0-> DC 16x16 i_idx = 0
* 1-> AC 16x16 i_idx = luma4x4idx
* 2-> Luma4x4 i_idx = luma4x4idx
* 3-> DC Chroma i_idx = iCbCr
* 5-> Luma8x8 i_idx = luma8x8idx
*/
-static int ALWAYS_INLINE x264_cabac_mb_cbf_ctxidxinc( x264_t *h, int i_cat, int i_idx )
+static int ALWAYS_INLINE x264_cabac_mb_cbf_ctxidxinc( x264_t *h, int i_cat, int i_idx, int b_intra )
{
+ static const uint16_t base_ctx[14] = {85,89,93,97,101,1012,460,464,468,1016,472,476,480,1020};
int i_nza;
int i_nzb;
- int b_intra = IS_INTRA( h->mb.i_type );
switch( i_cat )
{
+ case DCT_LUMA_8x8:
+ case DCT_CHROMAU_8x8:
+ case DCT_CHROMAV_8x8:
case DCT_LUMA_AC:
case DCT_LUMA_4x4:
case DCT_CHROMA_AC:
- /* no need to test for skip/pcm */
+ case DCT_CHROMAU_AC:
+ case DCT_CHROMAU_4x4:
+ case DCT_CHROMAV_AC:
+ case DCT_CHROMAV_4x4:
i_nza = h->mb.cache.non_zero_count[x264_scan8[i_idx] - 1];
i_nzb = h->mb.cache.non_zero_count[x264_scan8[i_idx] - 8];
- i_nza &= 0x7f + (b_intra << 7);
- i_nzb &= 0x7f + (b_intra << 7);
- return 4*i_cat + 2*!!i_nzb + !!i_nza;
+ if( x264_constant_p(b_intra) && !b_intra )
+ return base_ctx[i_cat] + ((2*i_nzb + i_nza)&0x7f);
+ else
+ {
+ i_nza &= 0x7f + (b_intra << 7);
+ i_nzb &= 0x7f + (b_intra << 7);
+ return base_ctx[i_cat] + 2*!!i_nzb + !!i_nza;
+ }
case DCT_LUMA_DC:
- /* Note: this depends on the exact values of MB_LEFT and MB_TOP enums */
- i_nza = ((h->mb.cbp[h->mb.i_mb_xy - 1] >> 8) | ~h->mb.i_neighbour) & 1;
- i_nzb = ((h->mb.cbp[h->mb.i_mb_top_xy] >> 7) | ~h->mb.i_neighbour) & 2;
- return 4*i_cat + i_nzb + i_nza;
+ case DCT_CHROMAU_DC:
+ case DCT_CHROMAV_DC:
+ i_idx -= LUMA_DC;
+ i_nza = (h->mb.cache.i_cbp_left >> (8 + i_idx)) & 1;
+ i_nzb = (h->mb.cache.i_cbp_top >> (8 + i_idx)) & 1;
+ return base_ctx[i_cat] + 2*i_nzb + i_nza;
case DCT_CHROMA_DC:
- /* no need to test skip/pcm */
- i_idx -= 25;
- i_nza = h->mb.i_neighbour & MB_LEFT ? (h->mb.cbp[h->mb.i_mb_xy - 1] >> (9 + i_idx)) & 1 : b_intra;
- i_nzb = h->mb.i_neighbour & MB_TOP ? (h->mb.cbp[h->mb.i_mb_top_xy] >> (9 + i_idx)) & 1 : b_intra;
- return 4*i_cat + 2*i_nzb + i_nza;
+ i_idx -= LUMA_DC;
+ i_nza = h->mb.cache.i_cbp_left != -1 ? (h->mb.cache.i_cbp_left >> (8 + i_idx)) & 1 : b_intra;
+ i_nzb = h->mb.cache.i_cbp_top != -1 ? (h->mb.cache.i_cbp_top >> (8 + i_idx)) & 1 : b_intra;
+ return base_ctx[i_cat] + 2*i_nzb + i_nza;
default:
return 0;
}
}
-
-static const uint16_t significant_coeff_flag_offset[2][6] = {
- { 105, 120, 134, 149, 152, 402 },
- { 277, 292, 306, 321, 324, 436 }
+static const uint16_t significant_coeff_flag_offset[2][14] =
+{
+ { 105+0, 105+15, 105+29, 105+44, 105+47, 402, 484+0, 484+15, 484+29, 660, 528+0, 528+15, 528+29, 718 },
+ { 277+0, 277+15, 277+29, 277+44, 277+47, 436, 776+0, 776+15, 776+29, 675, 820+0, 820+15, 820+29, 733 }
+};
+static const uint16_t last_coeff_flag_offset[2][14] =
+{
+ { 166+0, 166+15, 166+29, 166+44, 166+47, 417, 572+0, 572+15, 572+29, 690, 616+0, 616+15, 616+29, 748 },
+ { 338+0, 338+15, 338+29, 338+44, 338+47, 451, 864+0, 864+15, 864+29, 699, 908+0, 908+15, 908+29, 757 }
};
-static const uint16_t last_coeff_flag_offset[2][6] = {
- { 166, 181, 195, 210, 213, 417 },
- { 338, 353, 367, 382, 385, 451 }
+static const uint16_t coeff_abs_level_m1_offset[14] =
+{
+ 227+0, 227+10, 227+20, 227+30, 227+39, 426, 952+0, 952+10, 952+20, 708, 982+0, 982+10, 982+20, 766
};
-static const uint16_t coeff_abs_level_m1_offset[6] =
- { 227, 237, 247, 257, 266, 426 };
static const uint8_t significant_coeff_flag_offset_8x8[2][63] =
{{
0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14
}};
-static const uint8_t last_coeff_flag_offset_8x8[63] = {
+static const uint8_t last_coeff_flag_offset_8x8[63] =
+{
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
// node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
// 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
/* map node ctx => cabac ctx for level=1 */
-static const int coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
+static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
/* map node ctx => cabac ctx for level>1 */
-static const int coeff_abs_levelgt1_ctx[8] = { 5, 5, 5, 5, 6, 7, 8, 9 };
+static const uint8_t coeff_abs_levelgt1_ctx[8] = { 5, 5, 5, 5, 6, 7, 8, 9 };
static const uint8_t coeff_abs_level_transition[2][8] = {
/* update node ctx after coding a level=1 */
{ 1, 2, 3, 3, 4, 5, 6, 7 },
/* update node ctx after coding a level>1 */
{ 4, 4, 4, 4, 5, 6, 7, 7 }
};
+static const uint8_t count_cat_m1[14] = {15, 14, 15, 3, 14, 63, 15, 14, 15, 63, 15, 14, 15, 63};
#if !RDO_SKIP_BS
-static void block_residual_write_cabac( x264_t *h, x264_cabac_t *cb, int i_ctxBlockCat, int i_idx, int16_t *l, int i_count, int ctxidxinc )
+static void block_residual_write_cabac( x264_t *h, x264_cabac_t *cb, int ctx_block_cat, dctcoef *l )
{
- const int i_ctx_sig = significant_coeff_flag_offset[h->mb.b_interlaced][i_ctxBlockCat];
- const int i_ctx_last = last_coeff_flag_offset[h->mb.b_interlaced][i_ctxBlockCat];
- const int i_ctx_level = coeff_abs_level_m1_offset[i_ctxBlockCat];
- const uint8_t *significant_coeff_flag_offset = significant_coeff_flag_offset_8x8[h->mb.b_interlaced];
-
- int i_coeff_abs_m1[64];
- int i_coeff_sign[64];
- int i_coeff = 0;
- int i_last;
- int i_sigmap_size;
- int node_ctx = 0;
- int i;
-
- if( i_count != 64 )
- {
- /* coded block flag */
- int ctx = 85 + ctxidxinc;
- if( h->mb.cache.non_zero_count[x264_scan8[i_idx]] )
- x264_cabac_encode_decision( cb, ctx, 1 );
- else
- {
- x264_cabac_encode_decision( cb, ctx, 0 );
- return;
- }
- }
-
- i_last = h->quantf.coeff_last[i_ctxBlockCat](l);
+ const uint8_t *sig_offset = significant_coeff_flag_offset_8x8[MB_INTERLACED];
+ int ctx_sig = significant_coeff_flag_offset[MB_INTERLACED][ctx_block_cat];
+ int ctx_last = last_coeff_flag_offset[MB_INTERLACED][ctx_block_cat];
+ int ctx_level = coeff_abs_level_m1_offset[ctx_block_cat];
+ int coeff_idx = -1, node_ctx = 0, last;
+ int coeffs[64];
- i_sigmap_size = X264_MIN( i_last+1, i_count-1 );
+ last = h->quantf.coeff_last[ctx_block_cat]( l );
#define WRITE_SIGMAP( l8x8 )\
- for( i = 0; i < i_sigmap_size; i++ )\
+{\
+ int i = 0;\
+ while( 1 )\
{\
if( l[i] )\
{\
- i_coeff_abs_m1[i_coeff] = abs(l[i]) - 1;\
- if( !RDO_SKIP_BS )\
- i_coeff_sign[i_coeff] = l[i] < 0;\
- i_coeff++;\
- x264_cabac_encode_decision( cb, i_ctx_sig + (l8x8 ? significant_coeff_flag_offset[i] : i), 1 );\
- x264_cabac_encode_decision( cb, i_ctx_last + (l8x8 ? last_coeff_flag_offset_8x8[i] : i), i == i_last );\
+ coeffs[++coeff_idx] = l[i];\
+ x264_cabac_encode_decision( cb, ctx_sig + (l8x8 ? sig_offset[i] : i), 1 );\
+ if( i == last )\
+ {\
+ x264_cabac_encode_decision( cb, ctx_last + (l8x8 ? last_coeff_flag_offset_8x8[i] : i), 1 );\
+ break;\
+ }\
+ else\
+ x264_cabac_encode_decision( cb, ctx_last + (l8x8 ? last_coeff_flag_offset_8x8[i] : i), 0 );\
}\
else\
- x264_cabac_encode_decision( cb, i_ctx_sig + (l8x8 ? significant_coeff_flag_offset[i] : i), 0 );\
- }
+ x264_cabac_encode_decision( cb, ctx_sig + (l8x8 ? sig_offset[i] : i), 0 );\
+ i++;\
+ if( i == count_m1 )\
+ {\
+ coeffs[++coeff_idx] = l[i];\
+ break;\
+ }\
+ }\
+}
- if( i_ctxBlockCat == DCT_LUMA_8x8 )
+ int count_m1 = count_cat_m1[ctx_block_cat];
+ if( count_m1 == 63 )
WRITE_SIGMAP( 1 )
else
WRITE_SIGMAP( 0 )
- if( i == i_last )
- {
- i_coeff_abs_m1[i_coeff] = abs(l[i]) - 1;
- i_coeff_sign[i_coeff] = l[i] < 0;
- i_coeff++;
- }
-
do
{
- int i_prefix, ctx;
- i_coeff--;
-
/* write coeff_abs - 1 */
- i_prefix = X264_MIN( i_coeff_abs_m1[i_coeff], 14 );
- ctx = coeff_abs_level1_ctx[node_ctx] + i_ctx_level;
+ int coeff = coeffs[coeff_idx];
+ int abs_coeff = abs(coeff);
+ int coeff_sign = coeff >> 31;
+ int ctx = coeff_abs_level1_ctx[node_ctx] + ctx_level;
- if( i_prefix )
+ if( abs_coeff > 1 )
{
x264_cabac_encode_decision( cb, ctx, 1 );
- ctx = coeff_abs_levelgt1_ctx[node_ctx] + i_ctx_level;
- for( i = 0; i < i_prefix - 1; i++ )
+ ctx = coeff_abs_levelgt1_ctx[node_ctx] + ctx_level;
+ for( int i = X264_MIN( abs_coeff, 15 ) - 2; i > 0; i-- )
x264_cabac_encode_decision( cb, ctx, 1 );
- if( i_prefix < 14 )
+ if( abs_coeff < 15 )
x264_cabac_encode_decision( cb, ctx, 0 );
- if( i_prefix >= 14 )
- x264_cabac_encode_ue_bypass( cb, 0, i_coeff_abs_m1[i_coeff] - 14 );
+ else
+ x264_cabac_encode_ue_bypass( cb, 0, abs_coeff - 15 );
node_ctx = coeff_abs_level_transition[1][node_ctx];
}
node_ctx = coeff_abs_level_transition[0][node_ctx];
}
- x264_cabac_encode_bypass( cb, i_coeff_sign[i_coeff] );
- } while( i_coeff > 0 );
+ x264_cabac_encode_bypass( cb, coeff_sign );
+ } while( --coeff_idx >= 0 );
}
-#define block_residual_write_cabac_8x8( h, cb, idx, l ) block_residual_write_cabac( h, cb, DCT_LUMA_8x8, idx, l, 64 )
+#define block_residual_write_cabac_8x8( h, cb, cat, l ) block_residual_write_cabac( h, cb, cat, l )
#else
* this is slightly incorrect because the sigmap is not reversible
* (contexts are repeated). However, there is nearly no quality penalty
* for this (~0.001db) and the speed boost (~30%) is worth it. */
-static void ALWAYS_INLINE block_residual_write_cabac_internal( x264_t *h, x264_cabac_t *cb, int i_ctxBlockCat, int i_idx, int16_t *l, int i_count, int ctxidxinc, int b_8x8 )
+static void ALWAYS_INLINE block_residual_write_cabac_internal( x264_t *h, x264_cabac_t *cb, int ctx_block_cat, dctcoef *l, int b_8x8 )
{
- const int i_ctx_sig = significant_coeff_flag_offset[h->mb.b_interlaced][i_ctxBlockCat];
- const int i_ctx_last = last_coeff_flag_offset[h->mb.b_interlaced][i_ctxBlockCat];
- const int i_ctx_level = coeff_abs_level_m1_offset[i_ctxBlockCat];
- const uint8_t *significant_coeff_flag_offset = significant_coeff_flag_offset_8x8[h->mb.b_interlaced];
- int i_last, i_coeff_abs_m1, ctx, i_prefix, i, node_ctx;
-
- if( !b_8x8 )
+ const uint8_t *sig_offset = significant_coeff_flag_offset_8x8[MB_INTERLACED];
+ int ctx_sig = significant_coeff_flag_offset[MB_INTERLACED][ctx_block_cat];
+ int ctx_last = last_coeff_flag_offset[MB_INTERLACED][ctx_block_cat];
+ int ctx_level = coeff_abs_level_m1_offset[ctx_block_cat];
+ int last = h->quantf.coeff_last[ctx_block_cat]( l );
+ int coeff_abs = abs(l[last]);
+ int ctx = coeff_abs_level1_ctx[0] + ctx_level;
+ int node_ctx;
+
+ if( last != (b_8x8 ? 63 : count_cat_m1[ctx_block_cat]) )
{
- /* coded block flag */
- ctx = 85 + ctxidxinc;
- if( h->mb.cache.non_zero_count[x264_scan8[i_idx]] )
- x264_cabac_encode_decision( cb, ctx, 1 );
- else
- {
- x264_cabac_encode_decision( cb, ctx, 0 );
- return;
- }
+ x264_cabac_encode_decision( cb, ctx_sig + (b_8x8 ? sig_offset[last] : last), 1 );
+ x264_cabac_encode_decision( cb, ctx_last + (b_8x8 ? last_coeff_flag_offset_8x8[last] : last), 1 );
}
- i_last = h->quantf.coeff_last[i_ctxBlockCat](l);
-
- i_coeff_abs_m1 = abs(l[i_last]) - 1;
- i_prefix = X264_MIN( i_coeff_abs_m1, 14 );
- ctx = coeff_abs_level1_ctx[0] + i_ctx_level;
-
- if( i_last != i_count - 1 )
- {
- x264_cabac_encode_decision( cb, i_ctx_sig + (b_8x8?significant_coeff_flag_offset[i_last]:i_last), 1 );
- x264_cabac_encode_decision( cb, i_ctx_last + (b_8x8?last_coeff_flag_offset_8x8[i_last]:i_last), 1 );
- }
-
- if( i_prefix )
+ if( coeff_abs > 1 )
{
x264_cabac_encode_decision( cb, ctx, 1 );
- ctx = coeff_abs_levelgt1_ctx[0] + i_ctx_level;
- cb->f8_bits_encoded += cabac_size_unary[i_prefix][cb->state[ctx]];
- cb->state[ctx] = cabac_transition_unary[i_prefix][cb->state[ctx]];
- if( i_prefix >= 14 )
- x264_cabac_encode_ue_bypass( cb, 0, i_coeff_abs_m1 - 14 );
+ ctx = coeff_abs_levelgt1_ctx[0] + ctx_level;
+ if( coeff_abs < 15 )
+ {
+ cb->f8_bits_encoded += cabac_size_unary[coeff_abs-1][cb->state[ctx]];
+ cb->state[ctx] = cabac_transition_unary[coeff_abs-1][cb->state[ctx]];
+ }
+ else
+ {
+ cb->f8_bits_encoded += cabac_size_unary[14][cb->state[ctx]];
+ cb->state[ctx] = cabac_transition_unary[14][cb->state[ctx]];
+ x264_cabac_encode_ue_bypass( cb, 0, coeff_abs - 15 );
+ }
node_ctx = coeff_abs_level_transition[1][0];
}
else
x264_cabac_encode_bypass( cb, 0 ); // sign
}
- for( i = i_last-1 ; i >= 0; i-- )
+ for( int i = last-1 ; i >= 0; i-- )
{
if( l[i] )
{
- x264_cabac_encode_decision( cb, i_ctx_sig + (b_8x8?significant_coeff_flag_offset[i]:i), 1 );
- x264_cabac_encode_decision( cb, i_ctx_last + (b_8x8?last_coeff_flag_offset_8x8[i]:i), 0 );
- ctx = coeff_abs_level1_ctx[node_ctx] + i_ctx_level;
+ coeff_abs = abs(l[i]);
+ x264_cabac_encode_decision( cb, ctx_sig + (b_8x8 ? sig_offset[i] : i), 1 );
+ x264_cabac_encode_decision( cb, ctx_last + (b_8x8 ? last_coeff_flag_offset_8x8[i] : i), 0 );
+ ctx = coeff_abs_level1_ctx[node_ctx] + ctx_level;
- if( (unsigned)(l[i]+1) > 2 )
+ if( coeff_abs > 1 )
{
- i_coeff_abs_m1 = abs(l[i]) - 1;
- i_prefix = X264_MIN( i_coeff_abs_m1, 14 );
x264_cabac_encode_decision( cb, ctx, 1 );
- ctx = coeff_abs_levelgt1_ctx[node_ctx] + i_ctx_level;
- cb->f8_bits_encoded += cabac_size_unary[i_prefix][cb->state[ctx]];
- cb->state[ctx] = cabac_transition_unary[i_prefix][cb->state[ctx]];
- if( i_prefix >= 14 )
- x264_cabac_encode_ue_bypass( cb, 0, i_coeff_abs_m1 - 14 );
+ ctx = coeff_abs_levelgt1_ctx[node_ctx] + ctx_level;
+ if( coeff_abs < 15 )
+ {
+ cb->f8_bits_encoded += cabac_size_unary[coeff_abs-1][cb->state[ctx]];
+ cb->state[ctx] = cabac_transition_unary[coeff_abs-1][cb->state[ctx]];
+ }
+ else
+ {
+ cb->f8_bits_encoded += cabac_size_unary[14][cb->state[ctx]];
+ cb->state[ctx] = cabac_transition_unary[14][cb->state[ctx]];
+ x264_cabac_encode_ue_bypass( cb, 0, coeff_abs - 15 );
+ }
node_ctx = coeff_abs_level_transition[1][node_ctx];
}
else
}
}
else
- x264_cabac_encode_decision( cb, i_ctx_sig + (b_8x8?significant_coeff_flag_offset[i]:i), 0 );
+ x264_cabac_encode_decision( cb, ctx_sig + (b_8x8 ? sig_offset[i] : i), 0 );
}
}
-static void block_residual_write_cabac_8x8( x264_t *h, x264_cabac_t *cb, int i_idx, int16_t *l )
+static void block_residual_write_cabac_8x8( x264_t *h, x264_cabac_t *cb, int ctx_block_cat, dctcoef *l )
{
- block_residual_write_cabac_internal( h, cb, DCT_LUMA_8x8, i_idx, l, 64, 0, 1 );
+ block_residual_write_cabac_internal( h, cb, ctx_block_cat, l, 1 );
}
-static void block_residual_write_cabac( x264_t *h, x264_cabac_t *cb, int i_ctxBlockCat, int i_idx, int16_t *l, int i_count, int ctxidxinc )
+static void block_residual_write_cabac( x264_t *h, x264_cabac_t *cb, int ctx_block_cat, dctcoef *l )
{
- block_residual_write_cabac_internal( h, cb, i_ctxBlockCat, i_idx, l, i_count, ctxidxinc, 0 );
+ block_residual_write_cabac_internal( h, cb, ctx_block_cat, l, 0 );
}
#endif
-#define block_residual_write_cabac( h, cb, i_ctxBlockCat, i_idx, l, i_count ) \
-{ \
- int ctxidxinc = x264_cabac_mb_cbf_ctxidxinc( h, i_ctxBlockCat, i_idx); \
- block_residual_write_cabac( h, cb, i_ctxBlockCat, i_idx, l, i_count, ctxidxinc ); \
-}
-
-void x264_macroblock_write_cabac( x264_t *h, x264_cabac_t *cb )
+#define block_residual_write_cabac_cbf( h, cb, ctx_block_cat, i_idx, l, b_intra )\
+do\
+{\
+ int ctxidxinc = x264_cabac_mb_cbf_ctxidxinc( h, ctx_block_cat, i_idx, b_intra );\
+ if( h->mb.cache.non_zero_count[x264_scan8[i_idx]] )\
+ {\
+ x264_cabac_encode_decision( cb, ctxidxinc, 1 );\
+ block_residual_write_cabac( h, cb, ctx_block_cat, l );\
+ }\
+ else\
+ x264_cabac_encode_decision( cb, ctxidxinc, 0 );\
+} while(0)
+
+#define block_residual_write_cabac_8x8_cbf( h, cb, ctx_block_cat, i_idx, l, b_intra )\
+do\
+{\
+ int ctxidxinc = x264_cabac_mb_cbf_ctxidxinc( h, ctx_block_cat, i_idx, b_intra );\
+ if( h->mb.cache.non_zero_count[x264_scan8[i_idx]] )\
+ {\
+ x264_cabac_encode_decision( cb, ctxidxinc, 1 );\
+ block_residual_write_cabac_8x8( h, cb, ctx_block_cat, l );\
+ }\
+ else\
+ x264_cabac_encode_decision( cb, ctxidxinc, 0 );\
+} while(0)
+
+static ALWAYS_INLINE void x264_macroblock_write_cabac_internal( x264_t *h, x264_cabac_t *cb, int plane_count, int chroma )
{
const int i_mb_type = h->mb.i_type;
int i_list;
- int i;
#if !RDO_SKIP_BS
const int i_mb_pos_start = x264_cabac_pos( cb );
i_mb_pos_tex = x264_cabac_pos( cb );
h->stat.frame.i_mv_bits += i_mb_pos_tex - i_mb_pos_start;
- memcpy( cb->p, h->mb.pic.p_fenc[0], 256 );
- cb->p += 256;
- for( i = 0; i < 8; i++ )
- memcpy( cb->p + i*8, h->mb.pic.p_fenc[1] + i*FENC_STRIDE, 8 );
- cb->p += 64;
- for( i = 0; i < 8; i++ )
- memcpy( cb->p + i*8, h->mb.pic.p_fenc[2] + i*FENC_STRIDE, 8 );
- cb->p += 64;
-
- cb->i_low = 0;
- cb->i_range = 0x01FE;
- cb->i_queue = -1;
- cb->i_bytes_outstanding = 0;
-
- /* if PCM is chosen, we need to store reconstructed frame data */
- h->mc.copy[PIXEL_16x16]( h->mb.pic.p_fdec[0], FDEC_STRIDE, h->mb.pic.p_fenc[0], FENC_STRIDE, 16 );
- h->mc.copy[PIXEL_8x8] ( h->mb.pic.p_fdec[1], FDEC_STRIDE, h->mb.pic.p_fenc[1], FENC_STRIDE, 8 );
- h->mc.copy[PIXEL_8x8] ( h->mb.pic.p_fdec[2], FDEC_STRIDE, h->mb.pic.p_fenc[2], FENC_STRIDE, 8 );
+ bs_t s;
+ bs_init( &s, cb->p, cb->p_end - cb->p );
+
+ for( int p = 0; p < plane_count; p++ )
+ for( int i = 0; i < 256; i++ )
+ bs_write( &s, BIT_DEPTH, h->mb.pic.p_fenc[p][i] );
+ if( chroma )
+ for( int ch = 1; ch < 3; ch++ )
+ for( int i = 0; i < 8; i++ )
+ for( int j = 0; j < 8; j++ )
+ bs_write( &s, BIT_DEPTH, h->mb.pic.p_fenc[ch][i*FENC_STRIDE+j] );
+
+ bs_flush( &s );
+ cb->p = s.p;
+ x264_cabac_encode_init_core( cb );
h->stat.frame.i_tex_bits += x264_cabac_pos( cb ) - i_mb_pos_tex;
return;
if( i_mb_type != I_16x16 )
{
- int di = (i_mb_type == I_8x8) ? 4 : 1;
- for( i = 0; i < 16; i += di )
+ int di = h->mb.b_transform_8x8 ? 4 : 1;
+ for( int i = 0; i < 16; i += di )
{
const int i_pred = x264_mb_predict_intra4x4_mode( h, i );
const int i_mode = x264_mb_pred_mode4x4_fix( h->mb.cache.intra4x4_pred_mode[x264_scan8[i]] );
}
}
- x264_cabac_mb_intra_chroma_pred_mode( h, cb );
+ if( chroma )
+ x264_cabac_mb_intra_chroma_pred_mode( h, cb );
}
else if( i_mb_type == P_L0 )
{
x264_cabac_mb_mvd( h, cb, 0, 0, 4, 2 );
x264_cabac_mb_mvd( h, cb, 0, 8, 4, 2 );
}
- else if( h->mb.i_partition == D_8x16 )
+ else //if( h->mb.i_partition == D_8x16 )
{
if( h->mb.pic.i_fref[0] > 1 )
{
else if( i_mb_type == P_8x8 )
{
/* sub mb type */
- x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[0] );
- x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[1] );
- x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[2] );
- x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[3] );
+ for( int i = 0; i < 4; i++ )
+ x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[i] );
/* ref 0 */
if( h->mb.pic.i_fref[0] > 1 )
x264_cabac_mb_ref( h, cb, 0, 12 );
}
- for( i = 0; i < 4; i++ )
- x264_cabac_mb8x8_mvd( h, cb, 0, i );
+ for( int i = 0; i < 4; i++ )
+ x264_cabac_mb8x8_mvd( h, cb, i );
}
else if( i_mb_type == B_8x8 )
{
/* sub mb type */
- x264_cabac_mb_sub_b_partition( cb, h->mb.i_sub_partition[0] );
- x264_cabac_mb_sub_b_partition( cb, h->mb.i_sub_partition[1] );
- x264_cabac_mb_sub_b_partition( cb, h->mb.i_sub_partition[2] );
- x264_cabac_mb_sub_b_partition( cb, h->mb.i_sub_partition[3] );
+ for( int i = 0; i < 4; i++ )
+ x264_cabac_mb_sub_b_partition( cb, h->mb.i_sub_partition[i] );
/* ref */
- for( i_list = 0; i_list < 2; i_list++ )
- {
- if( ( i_list ? h->mb.pic.i_fref[1] : h->mb.pic.i_fref[0] ) == 1 )
- continue;
- for( i = 0; i < 4; i++ )
- if( x264_mb_partition_listX_table[i_list][ h->mb.i_sub_partition[i] ] )
- x264_cabac_mb_ref( h, cb, i_list, 4*i );
- }
-
- for( i = 0; i < 4; i++ )
- x264_cabac_mb8x8_mvd( h, cb, 0, i );
- for( i = 0; i < 4; i++ )
- x264_cabac_mb8x8_mvd( h, cb, 1, i );
+ if( h->mb.pic.i_fref[0] > 1 )
+ for( int i = 0; i < 4; i++ )
+ if( x264_mb_partition_listX_table[0][ h->mb.i_sub_partition[i] ] )
+ x264_cabac_mb_ref( h, cb, 0, 4*i );
+
+ if( h->mb.pic.i_fref[1] > 1 )
+ for( int i = 0; i < 4; i++ )
+ if( x264_mb_partition_listX_table[1][ h->mb.i_sub_partition[i] ] )
+ x264_cabac_mb_ref( h, cb, 1, 4*i );
+
+ for( int i = 0; i < 4; i++ )
+ if( x264_mb_partition_listX_table[0][ h->mb.i_sub_partition[i] ] )
+ x264_cabac_mb_mvd( h, cb, 0, 4*i, 2, 2 );
+
+ for( int i = 0; i < 4; i++ )
+ if( x264_mb_partition_listX_table[1][ h->mb.i_sub_partition[i] ] )
+ x264_cabac_mb_mvd( h, cb, 1, 4*i, 2, 2 );
}
else if( i_mb_type != B_DIRECT )
{
/* All B mode */
const uint8_t (*b_list)[2] = x264_mb_type_list_table[i_mb_type];
-
- for( i_list = 0; i_list < 2; i_list++ )
+ if( h->mb.pic.i_fref[0] > 1 )
{
- const int i_ref_max = h->mb.pic.i_fref[i_list];
-
- if( i_ref_max > 1 )
- {
- if( h->mb.i_partition == D_16x16 )
- {
- if( b_list[i_list][0] ) x264_cabac_mb_ref( h, cb, i_list, 0 );
- }
- else if( h->mb.i_partition == D_16x8 )
- {
- if( b_list[i_list][0] ) x264_cabac_mb_ref( h, cb, i_list, 0 );
- if( b_list[i_list][1] ) x264_cabac_mb_ref( h, cb, i_list, 8 );
- }
- else if( h->mb.i_partition == D_8x16 )
- {
- if( b_list[i_list][0] ) x264_cabac_mb_ref( h, cb, i_list, 0 );
- if( b_list[i_list][1] ) x264_cabac_mb_ref( h, cb, i_list, 4 );
- }
- }
+ if( b_list[0][0] )
+ x264_cabac_mb_ref( h, cb, 0, 0 );
+ if( b_list[0][1] && h->mb.i_partition != D_16x16 )
+ x264_cabac_mb_ref( h, cb, 0, 8 >> (h->mb.i_partition == D_8x16) );
+ }
+ if( h->mb.pic.i_fref[1] > 1 )
+ {
+ if( b_list[1][0] )
+ x264_cabac_mb_ref( h, cb, 1, 0 );
+ if( b_list[1][1] && h->mb.i_partition != D_16x16 )
+ x264_cabac_mb_ref( h, cb, 1, 8 >> (h->mb.i_partition == D_8x16) );
}
for( i_list = 0; i_list < 2; i_list++ )
{
if( b_list[i_list][0] ) x264_cabac_mb_mvd( h, cb, i_list, 0, 4, 2 );
if( b_list[i_list][1] ) x264_cabac_mb_mvd( h, cb, i_list, 8, 4, 2 );
}
- else if( h->mb.i_partition == D_8x16 )
+ else //if( h->mb.i_partition == D_8x16 )
{
if( b_list[i_list][0] ) x264_cabac_mb_mvd( h, cb, i_list, 0, 2, 4 );
if( b_list[i_list][1] ) x264_cabac_mb_mvd( h, cb, i_list, 4, 2, 4 );
if( i_mb_type != I_16x16 )
{
x264_cabac_mb_cbp_luma( h, cb );
- x264_cabac_mb_cbp_chroma( h, cb );
+ if( chroma )
+ x264_cabac_mb_cbp_chroma( h, cb );
}
if( x264_mb_transform_8x8_allowed( h ) && h->mb.i_cbp_luma )
x264_cabac_mb_transform_size( h, cb );
}
- if( h->mb.i_cbp_luma > 0 || h->mb.i_cbp_chroma > 0 || i_mb_type == I_16x16 )
+ if( h->mb.i_cbp_luma > 0 || (chroma && h->mb.i_cbp_chroma > 0) || i_mb_type == I_16x16 )
{
+ const int b_intra = IS_INTRA( i_mb_type );
x264_cabac_mb_qp_delta( h, cb );
/* write residual */
if( i_mb_type == I_16x16 )
{
/* DC Luma */
- block_residual_write_cabac( h, cb, DCT_LUMA_DC, 24, h->dct.luma16x16_dc, 16 );
+ for( int p = 0; p < plane_count; p++ )
+ {
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_DC][p], LUMA_DC+p, h->dct.luma16x16_dc[p], 1 );
- /* AC Luma */
- if( h->mb.i_cbp_luma != 0 )
- for( i = 0; i < 16; i++ )
- block_residual_write_cabac( h, cb, DCT_LUMA_AC, i, h->dct.luma4x4[i]+1, 15 );
+ /* AC Luma */
+ if( h->mb.i_cbp_luma )
+ for( int i = p*16; i < p*16+16; i++ )
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_AC][p], i, h->dct.luma4x4[i]+1, 1 );
+ }
}
else if( h->mb.b_transform_8x8 )
{
- for( i = 0; i < 4; i++ )
- if( h->mb.i_cbp_luma & ( 1 << i ) )
- block_residual_write_cabac_8x8( h, cb, i, h->dct.luma8x8[i] );
+ if( plane_count == 3 )
+ {
+ ALIGNED_4( uint8_t nnzbak[3][8] );
+
+/* Stupid nnz munging in the case that neighbors don't have
+ * 8x8 transform enabled. */
+#define BACKUP( dst, src, res )\
+ dst = src;\
+ src = res;
+
+#define RESTORE( dst, src, res )\
+ src = dst;
+
+#define MUNGE_8x8_NNZ( MUNGE )\
+if( (h->mb.i_neighbour & MB_LEFT) && !h->mb.mb_transform_size[h->mb.i_mb_left_xy[0]] )\
+{\
+ MUNGE( nnzbak[0][0], h->mb.cache.non_zero_count[x264_scan8[16*0+ 0] - 1], 0x80 )\
+ MUNGE( nnzbak[0][1], h->mb.cache.non_zero_count[x264_scan8[16*0+ 2] - 1], 0x80 )\
+ MUNGE( nnzbak[1][0], h->mb.cache.non_zero_count[x264_scan8[16*1+ 0] - 1], 0x80 )\
+ MUNGE( nnzbak[1][1], h->mb.cache.non_zero_count[x264_scan8[16*1+ 2] - 1], 0x80 )\
+ MUNGE( nnzbak[2][0], h->mb.cache.non_zero_count[x264_scan8[16*2+ 0] - 1], 0x80 )\
+ MUNGE( nnzbak[2][1], h->mb.cache.non_zero_count[x264_scan8[16*2+ 2] - 1], 0x80 )\
+}\
+if( (h->mb.i_neighbour & MB_LEFT) && !h->mb.mb_transform_size[h->mb.i_mb_left_xy[1]] )\
+{\
+ MUNGE( nnzbak[0][2], h->mb.cache.non_zero_count[x264_scan8[16*0+ 8] - 1], 0x80 )\
+ MUNGE( nnzbak[0][3], h->mb.cache.non_zero_count[x264_scan8[16*0+10] - 1], 0x80 )\
+ MUNGE( nnzbak[1][2], h->mb.cache.non_zero_count[x264_scan8[16*1+ 8] - 1], 0x80 )\
+ MUNGE( nnzbak[1][3], h->mb.cache.non_zero_count[x264_scan8[16*1+10] - 1], 0x80 )\
+ MUNGE( nnzbak[2][2], h->mb.cache.non_zero_count[x264_scan8[16*2+ 8] - 1], 0x80 )\
+ MUNGE( nnzbak[2][3], h->mb.cache.non_zero_count[x264_scan8[16*2+10] - 1], 0x80 )\
+}\
+if( (h->mb.i_neighbour & MB_TOP) && !h->mb.mb_transform_size[h->mb.i_mb_top_xy] )\
+{\
+ MUNGE( M32( &nnzbak[0][4] ), M32( &h->mb.cache.non_zero_count[x264_scan8[16*0] - 8] ), 0x80808080U )\
+ MUNGE( M32( &nnzbak[1][4] ), M32( &h->mb.cache.non_zero_count[x264_scan8[16*1] - 8] ), 0x80808080U )\
+ MUNGE( M32( &nnzbak[2][4] ), M32( &h->mb.cache.non_zero_count[x264_scan8[16*2] - 8] ), 0x80808080U )\
+}
+
+ MUNGE_8x8_NNZ( BACKUP )
+
+ for( int p = 0; p < 3; p++ )
+ for( int i = 0; i < 4; i++ )
+ if( h->mb.i_cbp_luma & ( 1 << i ) )
+ block_residual_write_cabac_8x8_cbf( h, cb, ctx_cat_plane[DCT_LUMA_8x8][p], i*4+p*16, h->dct.luma8x8[i+p*4], b_intra );
+
+ MUNGE_8x8_NNZ( RESTORE )
+ }
+ else
+ {
+ for( int i = 0; i < 4; i++ )
+ if( h->mb.i_cbp_luma & ( 1 << i ) )
+ block_residual_write_cabac_8x8( h, cb, DCT_LUMA_8x8, h->dct.luma8x8[i] );
+ }
}
else
{
- for( i = 0; i < 16; i++ )
- if( h->mb.i_cbp_luma & ( 1 << ( i / 4 ) ) )
- block_residual_write_cabac( h, cb, DCT_LUMA_4x4, i, h->dct.luma4x4[i], 16 );
+ for( int p = 0; p < plane_count; p++ )
+ for( int i = 0; i < 16; i++ )
+ if( h->mb.i_cbp_luma & ( 1 << ( i >> 2 ) ) )
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_4x4][p], i+p*16, h->dct.luma4x4[i+p*16], b_intra );
}
- if( h->mb.i_cbp_chroma &0x03 ) /* Chroma DC residual present */
+ if( chroma && h->mb.i_cbp_chroma ) /* Chroma DC residual present */
{
- block_residual_write_cabac( h, cb, DCT_CHROMA_DC, 25, h->dct.chroma_dc[0], 4 );
- block_residual_write_cabac( h, cb, DCT_CHROMA_DC, 26, h->dct.chroma_dc[1], 4 );
- }
- if( h->mb.i_cbp_chroma&0x02 ) /* Chroma AC residual present */
- {
- for( i = 16; i < 24; i++ )
- block_residual_write_cabac( h, cb, DCT_CHROMA_AC, i, h->dct.luma4x4[i]+1, 15 );
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_DC, CHROMA_DC+0, h->dct.chroma_dc[0], b_intra );
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_DC, CHROMA_DC+1, h->dct.chroma_dc[1], b_intra );
+ if( h->mb.i_cbp_chroma&0x02 ) /* Chroma AC residual present */
+ for( int ch = 1; ch < 3; ch++ )
+ for( int i = ch*16; i < ch*16+4; i++ )
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_AC, i, h->dct.luma4x4[i]+1, b_intra );
}
}
#endif
}
+void x264_macroblock_write_cabac( x264_t *h, x264_cabac_t *cb )
+{
+ if( CHROMA444 )
+ x264_macroblock_write_cabac_internal( h, cb, 3, 0 );
+ else
+ x264_macroblock_write_cabac_internal( h, cb, 1, 1 );
+}
+
#if RDO_SKIP_BS
/*****************************************************************************
* RD only; doesn't generate a valid bitstream
* doesn't write cbp or chroma dc (I don't know how much this matters)
- * doesn't write ref or subpartition (never varies between calls, so no point in doing so)
+ * doesn't write ref (never varies between calls, so no point in doing so)
+ * only writes subpartition for p8x8, needed for sub-8x8 mode decision RDO
* works on all partition sizes except 16x16
- * for sub8x8, call once per 8x8 block
*****************************************************************************/
static void x264_partition_size_cabac( x264_t *h, x264_cabac_t *cb, int i8, int i_pixel )
{
const int i_mb_type = h->mb.i_type;
int b_8x16 = h->mb.i_partition == D_8x16;
- int j;
+ int plane_count = CHROMA444 ? 3 : 1;
if( i_mb_type == P_8x8 )
- x264_cabac_mb8x8_mvd( h, cb, 0, i8 );
+ {
+ x264_cabac_mb8x8_mvd( h, cb, i8 );
+ x264_cabac_mb_sub_p_partition( cb, h->mb.i_sub_partition[i8] );
+ }
else if( i_mb_type == P_L0 )
x264_cabac_mb_mvd( h, cb, 0, 4*i8, 4>>b_8x16, 2<<b_8x16 );
else if( i_mb_type > B_DIRECT && i_mb_type < B_8x8 )
if( x264_mb_type_list_table[ i_mb_type ][0][!!i8] ) x264_cabac_mb_mvd( h, cb, 0, 4*i8, 4>>b_8x16, 2<<b_8x16 );
if( x264_mb_type_list_table[ i_mb_type ][1][!!i8] ) x264_cabac_mb_mvd( h, cb, 1, 4*i8, 4>>b_8x16, 2<<b_8x16 );
}
- else if( i_mb_type == B_8x8 )
+ else //if( i_mb_type == B_8x8 )
{
- x264_cabac_mb8x8_mvd( h, cb, 0, i8 );
- x264_cabac_mb8x8_mvd( h, cb, 1, i8 );
- }
- else
- {
- x264_log(h, X264_LOG_ERROR, "invalid/unhandled mb_type %d\n",i_mb_type );
- return;
+ if( x264_mb_partition_listX_table[0][ h->mb.i_sub_partition[i8] ] )
+ x264_cabac_mb_mvd( h, cb, 0, 4*i8, 2, 2 );
+ if( x264_mb_partition_listX_table[1][ h->mb.i_sub_partition[i8] ] )
+ x264_cabac_mb_mvd( h, cb, 1, 4*i8, 2, 2 );
}
- for( j = (i_pixel < PIXEL_8x8); j >= 0; j-- )
+ for( int j = (i_pixel < PIXEL_8x8); j >= 0; j-- )
{
if( h->mb.i_cbp_luma & (1 << i8) )
{
if( h->mb.b_transform_8x8 )
- block_residual_write_cabac_8x8( h, cb, i8, h->dct.luma8x8[i8] );
- else
{
- int i4;
- for( i4 = 0; i4 < 4; i4++ )
- block_residual_write_cabac( h, cb, DCT_LUMA_4x4, i4+i8*4, h->dct.luma4x4[i4+i8*4], 16 );
+ if( CHROMA444 )
+ for( int p = 0; p < 3; p++ )
+ block_residual_write_cabac_8x8_cbf( h, cb, ctx_cat_plane[DCT_LUMA_8x8][p], i8*4+p*16, h->dct.luma8x8[i8+p*4], 0 );
+ else
+ block_residual_write_cabac_8x8( h, cb, DCT_LUMA_8x8, h->dct.luma8x8[i8] );
}
+ else
+ for( int p = 0; p < plane_count; p++ )
+ for( int i4 = 0; i4 < 4; i4++ )
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_4x4][p], i4+i8*4+p*16, h->dct.luma4x4[i4+i8*4+p*16], 0 );
}
- block_residual_write_cabac( h, cb, DCT_CHROMA_AC, 16+i8, h->dct.luma4x4[16+i8]+1, 15 );
- block_residual_write_cabac( h, cb, DCT_CHROMA_AC, 20+i8, h->dct.luma4x4[20+i8]+1, 15 );
+ if( h->mb.i_cbp_chroma )
+ {
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_AC, 16+i8, h->dct.luma4x4[16+i8]+1, 0 );
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_AC, 32+i8, h->dct.luma4x4[32+i8]+1, 0 );
+ }
i8 += x264_pixel_size[i_pixel].h >> 3;
}
static void x264_subpartition_size_cabac( x264_t *h, x264_cabac_t *cb, int i4, int i_pixel )
{
int b_8x4 = i_pixel == PIXEL_8x4;
- block_residual_write_cabac( h, cb, DCT_LUMA_4x4, i4, h->dct.luma4x4[i4], 16 );
+ int plane_count = CHROMA444 ? 3 : 1;
if( i_pixel == PIXEL_4x4 )
x264_cabac_mb_mvd( h, cb, 0, i4, 1, 1 );
else
- {
x264_cabac_mb_mvd( h, cb, 0, i4, 1+b_8x4, 2-b_8x4 );
- block_residual_write_cabac( h, cb, DCT_LUMA_4x4, i4+2-b_8x4, h->dct.luma4x4[i4+2-b_8x4], 16 );
+ for( int p = 0; p < plane_count; p++ )
+ {
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_4x4][p], p*16+i4, h->dct.luma4x4[p*16+i4], 0 );
+ if( i_pixel != PIXEL_4x4 )
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_4x4][p], p*16+i4+2-b_8x4, h->dct.luma4x4[p*16+i4+2-b_8x4], 0 );
}
}
x264_cabac_mb_intra4x4_pred_mode( cb, i_pred, i_mode );
x264_cabac_mb_cbp_luma( h, cb );
if( h->mb.i_cbp_luma & (1 << i8) )
- block_residual_write_cabac_8x8( h, cb, 4*i8, h->dct.luma8x8[i8] );
+ {
+ if( CHROMA444 )
+ for( int p = 0; p < 3; p++ )
+ block_residual_write_cabac_8x8_cbf( h, cb, ctx_cat_plane[DCT_LUMA_8x8][p], i8*4+p*16, h->dct.luma8x8[i8+p*4], 1 );
+ else
+ block_residual_write_cabac_8x8( h, cb, DCT_LUMA_8x8, h->dct.luma8x8[i8] );
+ }
}
static void x264_partition_i4x4_size_cabac( x264_t *h, x264_cabac_t *cb, int i4, int i_mode )
{
const int i_pred = x264_mb_predict_intra4x4_mode( h, i4 );
+ int plane_count = CHROMA444 ? 3 : 1;
i_mode = x264_mb_pred_mode4x4_fix( i_mode );
x264_cabac_mb_intra4x4_pred_mode( cb, i_pred, i_mode );
- block_residual_write_cabac( h, cb, DCT_LUMA_4x4, i4, h->dct.luma4x4[i4], 16 );
+ for( int p = 0; p < plane_count; p++ )
+ block_residual_write_cabac_cbf( h, cb, ctx_cat_plane[DCT_LUMA_4x4][p], i4+p*16, h->dct.luma4x4[i4+p*16], 1 );
}
static void x264_i8x8_chroma_size_cabac( x264_t *h, x264_cabac_t *cb )
x264_cabac_mb_cbp_chroma( h, cb );
if( h->mb.i_cbp_chroma > 0 )
{
- block_residual_write_cabac( h, cb, DCT_CHROMA_DC, 25, h->dct.chroma_dc[0], 4 );
- block_residual_write_cabac( h, cb, DCT_CHROMA_DC, 26, h->dct.chroma_dc[1], 4 );
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_DC, CHROMA_DC+0, h->dct.chroma_dc[0], 1 );
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_DC, CHROMA_DC+1, h->dct.chroma_dc[1], 1 );
if( h->mb.i_cbp_chroma == 2 )
- {
- int i;
- for( i = 16; i < 24; i++ )
- block_residual_write_cabac( h, cb, DCT_CHROMA_AC, i, h->dct.luma4x4[i]+1, 15 );
- }
+ for( int ch = 1; ch < 3; ch++ )
+ for( int i = ch*16; i < ch*16+4; i++ )
+ block_residual_write_cabac_cbf( h, cb, DCT_CHROMA_AC, i, h->dct.luma4x4[i]+1, 1 );
}
}
#endif
projects / x264 / blobdiff