/*
* Initialisation tables
*/
-lookup_t pl_coded_pattern_init_table[512] =
- { {MB_ERROR, 0}, {MB_ERROR, 0}, {39, 9}, {27, 9}, {59, 9}, {55, 9}, {47, 9}, {31, 9},
+ /* Table for coded_block_pattern resolution */
+lookup_t pl_coded_pattern_init_table[512] =
+ { {MB_ERROR, 0}, {0, 9}, {39, 9}, {27, 9}, {59, 9}, {55, 9}, {47, 9}, {31, 9},
{58, 8}, {58, 8}, {54, 8}, {54, 8}, {46, 8}, {46, 8}, {30, 8}, {30, 8},
{57, 8}, {57, 8}, {53, 8}, {53, 8}, {45, 8}, {45, 8}, {29, 8}, {29, 8},
{38, 8}, {38, 8}, {26, 8}, {26, 8}, {37, 8}, {37, 8}, {25, 8}, {25, 8},
{60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3},
{60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3} };
+ /* Tables for dc DCT coefficients
+ * Tables are cut in two parts to reduce memory occupation
+ */
+
+ /* Table B-12, dct_dc_size_luminance, codes 00xxx ... 11110 */
+lookup_t pl_dct_dc_lum_init_table_1[32] =
+ { {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
+ {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
+ {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
+ {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}, {MB_ERROR, 0}
+ };
+
+ /* Table B-12, dct_dc_size_luminance, codes 111110xxx ... 111111111 */
+lookup_t pl_dct_dc_lum_init_table_2[32] =
+ { {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6},
+ {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10,9}, {11,9},
+ {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
+ {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
+ {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
+ {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}
+ };
+
+ /* Table B-13, dct_dc_size_chrominance, codes 00xxx ... 11110 */
+lookup_t pl_dct_dc_chrom_init_table_1[32] =
+ { {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
+ {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
+ {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}, {5, 5}, {MB_ERROR, 0}
+ };
+
+ /* Table B-13, dct_dc_size_chrominance, codes 111110xxxx ... 1111111111 */
+lookup_t pl_dct_dc_chrom_init_table_2[32] =
+ { {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
+ {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
+ {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7},
+ {8, 8}, {8, 8}, {8, 8}, {8, 8}, {9, 9}, {9, 9}, {10,10}, {11,10}
+ };
+
+/* Tables for ac DCT coefficients. There are cut in many parts to save space */
+ /* Table B-14, DCT coefficients table zero,
+ * codes 0100 ... 1xxx (used for first (DC) coefficient)
+ */
+dct_lookup_t pl_DCT_tab_dc[12] =
+ {
+ {0,2,4}, {2,1,4}, {1,1,3}, {1,1,3},
+ {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1},
+ {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1}
+ };
+
+ /* Table B-14, DCT coefficients table zero,
+ * codes 0100 ... 1xxx (used for all other coefficients)
+ */
+dct_lookup_t pl_DCT_tab_ac[12] =
+ {
+ {0,2,4}, {2,1,4}, {1,1,3}, {1,1,3},
+ {DCT_EOB,0,2}, {DCT_EOB,0,2}, {DCT_EOB,0,2}, {DCT_EOB,0,2}, /* EOB */
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2}
+ };
+
+ /* Table B-14, DCT coefficients table zero,
+ * codes 000001xx ... 00111xxx
+ */
+dct_lookup_t pl_DCT_tab0[60] =
+ {
+ {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6},
+ /* Escape */
+ {2,2,7}, {2,2,7}, {9,1,7}, {9,1,7},
+ {0,4,7}, {0,4,7}, {8,1,7}, {8,1,7},
+ {7,1,6}, {7,1,6}, {7,1,6}, {7,1,6},
+ {6,1,6}, {6,1,6}, {6,1,6}, {6,1,6},
+ {1,2,6}, {1,2,6}, {1,2,6}, {1,2,6},
+ {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
+ {13,1,8}, {0,6,8}, {12,1,8}, {11,1,8},
+ {3,2,8}, {1,3,8}, {0,5,8}, {10,1,8},
+ {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
+ {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
+ {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
+ {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
+ {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
+ {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5}
+ };
+
+ /* Table B-15, DCT coefficients table one,
+ * codes 000001xx ... 11111111
+ */
+dct_lookup_t pl_DCT_tab0a[252] =
+ {
+ {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6}, {DCT_ESCAPE,0,6},
+ /* Escape */
+ {7,1,7}, {7,1,7}, {8,1,7}, {8,1,7},
+ {6,1,7}, {6,1,7}, {2,2,7}, {2,2,7},
+ {0,7,6}, {0,7,6}, {0,7,6}, {0,7,6},
+ {0,6,6}, {0,6,6}, {0,6,6}, {0,6,6},
+ {4,1,6}, {4,1,6}, {4,1,6}, {4,1,6},
+ {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
+ {1,5,8}, {11,1,8}, {0,11,8}, {0,10,8},
+ {13,1,8}, {12,1,8}, {3,2,8}, {1,4,8},
+ {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
+ {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
+ {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
+ {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
+ {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
+ {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
+ {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4}, /* EOB */
+ {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4},
+ {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4},
+ {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4}, {DCT_EOB,0,4},
+ {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
+ {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
+ {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
+ {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
+ {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
+ {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
+ {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
+ {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
+ {9,1,7}, {9,1,7}, {1,3,7}, {1,3,7},
+ {10,1,7}, {10,1,7}, {0,8,7}, {0,8,7},
+ {0,9,7}, {0,9,7}, {0,12,8}, {0,13,8},
+ {2,3,8}, {4,2,8}, {0,14,8}, {0,15,8}
+ };
+
+ /* Table B-14, DCT coefficients table zero,
+ * codes 0000001000 ... 0000001111
+ */
+dct_lookup_t pl_DCT_tab1[8] =
+ {
+ {16,1,10}, {5,2,10}, {0,7,10}, {2,3,10},
+ {1,4,10}, {15,1,10}, {14,1,10}, {4,2,10}
+ };
+
+ /* Table B-15, DCT coefficients table one,
+ * codes 000000100x ... 000000111x
+ */
+dct_lookup_t pl_DCT_tab1a[8] =
+ {
+ {5,2,9}, {5,2,9}, {14,1,9}, {14,1,9},
+ {2,4,10}, {16,1,10}, {15,1,9}, {15,1,9}
+ };
+ /* Table B-14/15, DCT coefficients table zero / one,
+ * codes 000000010000 ... 000000011111
+ */
+dct_lookup_t pl_DCT_tab2[16] =
+ {
+ {0,11,12}, {8,2,12}, {4,3,12}, {0,10,12},
+ {2,4,12}, {7,2,12}, {21,1,12}, {20,1,12},
+ {0,9,12}, {19,1,12}, {18,1,12}, {1,5,12},
+ {3,3,12}, {0,8,12}, {6,2,12}, {17,1,12}
+ };
+
+ /* Table B-14/15, DCT coefficients table zero / one,
+ * codes 0000000010000 ... 0000000011111
+ */
+dct_lookup_t pl_DCT_tab3[16] =
+ {
+ {10,2,13}, {9,2,13}, {5,3,13}, {3,4,13},
+ {2,5,13}, {1,7,13}, {1,6,13}, {0,15,13},
+ {0,14,13}, {0,13,13}, {0,12,13}, {26,1,13},
+ {25,1,13}, {24,1,13}, {23,1,13}, {22,1,13}
+ };
+
+ /* Table B-14/15, DCT coefficients table zero / one,
+ * codes 00000000010000 ... 00000000011111
+ */
+dct_lookup_t pl_DCT_tab4[16] =
+ {
+ {0,31,14}, {0,30,14}, {0,29,14}, {0,28,14},
+ {0,27,14}, {0,26,14}, {0,25,14}, {0,24,14},
+ {0,23,14}, {0,22,14}, {0,21,14}, {0,20,14},
+ {0,19,14}, {0,18,14}, {0,17,14}, {0,16,14}
+ };
+
+ /* Table B-14/15, DCT coefficients table zero / one,
+ * codes 000000000010000 ... 000000000011111
+ */
+dct_lookup_t pl_DCT_tab5[16] =
+ {
+ {0,40,15}, {0,39,15}, {0,38,15}, {0,37,15},
+ {0,36,15}, {0,35,15}, {0,34,15}, {0,33,15},
+ {0,32,15}, {1,14,15}, {1,13,15}, {1,12,15},
+ {1,11,15}, {1,10,15}, {1,9,15}, {1,8,15}
+ };
+
+ /* Table B-14/15, DCT coefficients table zero / one,
+ * codes 0000000000010000 ... 0000000000011111
+ */
+dct_lookup_t pl_DCT_tab6[16] =
+ {
+ {1,18,16}, {1,17,16}, {1,16,16}, {1,15,16},
+ {6,3,16}, {16,2,16}, {15,2,16}, {14,2,16},
+ {13,2,16}, {12,2,16}, {11,2,16}, {31,1,16},
+ {30,1,16}, {29,1,16}, {28,1,16}, {27,1,16}
+ };
/*
* Initialization of lookup tables
*/
#endif
/*****************************************************************************
- * InitMbAddrInc : Initialize the lookup table for mb_addr_inc *
+ * InitMbAddrInc : Initialize the lookup table for mb_addr_inc
*****************************************************************************/
/* Fonction for filling up the lookup table for mb_addr_inc */
FillMbAddrIncTable( p_vpar, 36, 48, 2, pi_value, 10 );
FillMbAddrIncTable( p_vpar, 24, 36, 1, pi_value, 11 );
}
-/*****************************************************************************
- * InitDCT : Initialize tables giving the length of the dct coefficient
- * from the vlc code
- *****************************************************************************/
-
-void InitDCTTables( vpar_thread_t * p_vpar )
-{
-#if 0
- /* Tables are cut in two parts to reduce memory occupation */
-
- /* Table B-12, dct_dc_size_luminance, codes 00xxx ... 11110 */
- p_vpar->pppl_dct_dc_size[0][0] =
- { {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
- {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
- {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
- {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}, {MB_ERROR, 0}
- };
-
- /* Table B-12, dct_dc_size_luminance, codes 111110xxx ... 111111111 */
- p_vpar->pppl_dct_dc_lum_size[1][0] =
- { {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6},
- {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10,9}, {11,9}
- {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
- {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
- {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0},
- {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}, {MB_ERROR, 0}
- };
-
- /* Table B-13, dct_dc_size_chrominance, codes 00xxx ... 11110 */
- p_vpar->pppl_dct_dc_chrom_size[0][1] =
- { {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
- {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
- {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}, {5, 5}, {MB_ERROR, 0}
- };
-
- /* Table B-13, dct_dc_size_chrominance, codes 111110xxxx ... 1111111111 */
- p_vpar->pppl_dct_dc_size[1][1] =
- { {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
- {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
- {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7},
- {8, 8}, {8, 8}, {8, 8}, {8, 8}, {9, 9}, {9, 9}, {10,10}, {11,10}
- };
-#endif
-}
/*****************************************************************************
* Init*MBType : Initialize lookup table for the Macroblock type
- * ***************************************************************************/
+ *****************************************************************************/
/* Fonction for filling up the tables */
static void __inline__ FillMBType( vpar_thread_t * p_vpar,
for( i_dummy = i_start ; i_dummy < i_end ; i_dummy++ )
{
- p_vpar->pl_mb_type[i_mb_type][i_dummy].i_value = i_value;
- p_vpar->pl_mb_type[i_mb_type][i_dummy].i_length = i_length;
+ p_vpar->ppl_mb_type[i_mb_type][i_dummy].i_value = i_value;
+ p_vpar->ppl_mb_type[i_mb_type][i_dummy].i_length = i_length;
}
}
FillMBType( p_vpar, 0, 6, 8, MB_INTRA, 5 );
FillMBType( p_vpar, 0, 4, 6, MB_QUANT|MB_MOTION_FORWARD|MB_PATTERN, 5 );
FillMBType( p_vpar, 0, 2, 4, MB_QUANT|MB_PATTERN, 5 );
- p_vpar->pl_mb_type[0][1].i_value = MB_QUANT|MB_INTRA;
- p_vpar->pl_mb_type[0][1].i_length = 6;
- p_vpar->pl_mb_type[0][0].i_value = MB_ERROR;
- p_vpar->pl_mb_type[0][0].i_length = 0;
+ p_vpar->ppl_mb_type[0][1].i_value = MB_QUANT|MB_INTRA;
+ p_vpar->ppl_mb_type[0][1].i_length = 6;
+ p_vpar->ppl_mb_type[0][0].i_value = MB_ERROR;
+ p_vpar->ppl_mb_type[0][0].i_length = 0;
}
/* Fonction that fills the table for B MB_Type */
FillMBType( p_vpar, 1, 6, 8, MB_INTRA, 5 );
FillMBType( p_vpar, 1, 4, 6, MB_QUANT|MB_MOTION_FORWARD
|MB_MOTION_BACKWARD|MB_PATTERN, 5 );
- p_vpar->pl_mb_type[1][3].i_value = MB_QUANT|MB_MOTION_FORWARD|MB_PATTERN;
- p_vpar->pl_mb_type[1][3].i_length = 6;
- p_vpar->pl_mb_type[1][2].i_value = MB_QUANT|MB_MOTION_BACKWARD|MB_PATTERN;
- p_vpar->pl_mb_type[1][2].i_length = 6;
- p_vpar->pl_mb_type[1][1].i_value = MB_QUANT|MB_INTRA;
- p_vpar->pl_mb_type[1][1].i_length = 6;
- p_vpar->pl_mb_type[1][0].i_value =MB_ERROR;
- p_vpar->pl_mb_type[1][0].i_length = 0;
+ p_vpar->ppl_mb_type[1][3].i_value = MB_QUANT|MB_MOTION_FORWARD|MB_PATTERN;
+ p_vpar->ppl_mb_type[1][3].i_length = 6;
+ p_vpar->ppl_mb_type[1][2].i_value = MB_QUANT|MB_MOTION_BACKWARD|MB_PATTERN;
+ p_vpar->ppl_mb_type[1][2].i_length = 6;
+ p_vpar->ppl_mb_type[1][1].i_value = MB_QUANT|MB_INTRA;
+ p_vpar->ppl_mb_type[1][1].i_length = 6;
+ p_vpar->ppl_mb_type[1][0].i_value =MB_ERROR;
+ p_vpar->ppl_mb_type[1][0].i_length = 0;
}
/*****************************************************************************
*****************************************************************************/
void InitCodedPattern( vpar_thread_t * p_vpar )
{
- memcpy( p_vpar->pl_coded_pattern, pl_coded_pattern_init_table ,
+ memcpy( p_vpar->pl_coded_pattern, pl_coded_pattern_init_table ,
sizeof(pl_coded_pattern_init_table) );
}
+/*****************************************************************************
+ * InitDCT : Initialize tables giving the length of the dct coefficient
+ * from the vlc code
+ *****************************************************************************/
+
+void InitDCTTables( vpar_thread_t * p_vpar )
+{
+ /* Tables are cut in two parts to reduce memory occupation */
+ memcpy( p_vpar->pppl_dct_dc_size[0][0], pl_dct_dc_lum_init_table_1,
+ sizeof( pl_dct_dc_lum_init_table_1 ) );
+ memcpy( p_vpar->pppl_dct_dc_size[0][1], pl_dct_dc_lum_init_table_2,
+ sizeof( pl_dct_dc_lum_init_table_2 ) );
+ memcpy( p_vpar->pppl_dct_dc_size[1][0], pl_dct_dc_chrom_init_table_1,
+ sizeof( pl_dct_dc_chrom_init_table_1 ) );
+ memcpy( p_vpar->pppl_dct_dc_size[1][1], pl_dct_dc_chrom_init_table_2,
+ sizeof( pl_dct_dc_chrom_init_table_2 ) );
+ /* For table B14 & B15, we have a pointer to tables */
+ memcpy( p_vpar->ppl_dct_coef[0], pl_DCT_tab_dc, sizeof( pl_DCT_tab_dc ) );
+ memcpy( p_vpar->ppl_dct_coef[1], pl_DCT_tab_ac, sizeof( pl_DCT_tab_ac ) );
+ memcpy( p_vpar->ppl_dct_coef[2], pl_DCT_tab0, sizeof( pl_DCT_tab0 ) );
+ memcpy( p_vpar->ppl_dct_coef[3], pl_DCT_tab1, sizeof( pl_DCT_tab1 ) );
+ memcpy( p_vpar->ppl_dct_coef[4], pl_DCT_tab2, sizeof( pl_DCT_tab2 ) );
+ memcpy( p_vpar->ppl_dct_coef[5], pl_DCT_tab3, sizeof( pl_DCT_tab3 ) );
+ memcpy( p_vpar->ppl_dct_coef[6], pl_DCT_tab4, sizeof( pl_DCT_tab4 ) );
+ memcpy( p_vpar->ppl_dct_coef[7], pl_DCT_tab5, sizeof( pl_DCT_tab5 ) );
+ memcpy( p_vpar->ppl_dct_coef[8], pl_DCT_tab6, sizeof( pl_DCT_tab6 ) );
+ memcpy( p_vpar->ppl_dct_coef[9], pl_DCT_tab0a, sizeof( pl_DCT_tab0a ) );
+ memcpy( p_vpar->ppl_dct_coef[10], pl_DCT_tab1a, sizeof( pl_DCT_tab1a ) );
+
+
+}
+
/*
* Macroblock parsing functions
*/
int i_type = ShowBits( &p_vpar->bit_stream, 2 );
/* Lookup table for macroblock_type */
static lookup_t pl_mb_Itype[4] = { {MB_ERROR, 0},
- {MB_QUANT|MB_INTRA, 2},
- {MB_INTRA, 1},
- {MB_INTRA, 2} };
+ {MB_QUANT|MB_INTRA, 2},
+ {MB_INTRA, 1},
+ {MB_INTRA, 2} };
/* Dump the good number of bits */
DumpBits( &p_vpar->bit_stream, pl_mb_Itype[i_type].i_length );
return pl_mb_Itype[i_type].i_value;
/* Testing on 6 bits */
int i_type = ShowBits( &p_vpar->bit_stream, 6 );
/* Dump the good number of bits */
- DumpBits( &p_vpar->bit_stream, p_vpar->pl_mb_type[0][i_type].i_length );
+ DumpBits( &p_vpar->bit_stream, p_vpar->ppl_mb_type[0][i_type].i_length );
/* return the value from the lookup table for P type */
- return p_vpar->pl_mb_type[0][i_type].i_value;
+ return p_vpar->ppl_mb_type[0][i_type].i_value;
}
/*****************************************************************************
/* Testing on 6 bits */
int i_type = ShowBits( &p_vpar->bit_stream, 6 );
/* Dump the good number of bits */
- DumpBits( &p_vpar->bit_stream, p_vpar->pl_mb_type[1][i_type].i_length );
+ DumpBits( &p_vpar->bit_stream, p_vpar->ppl_mb_type[1][i_type].i_length );
/* return the value from the lookup table for B type */
- return p_vpar->pl_mb_type[1][i_type].i_value;
+ return p_vpar->ppl_mb_type[1][i_type].i_value;
}
/*****************************************************************************
*****************************************************************************/
int vpar_CodedPattern420( vpar_thread_t * p_vpar )
{
+ /* Take the max 9 bits length vlc code for testing */
int i_vlc = ShowBits( &p_vpar->bit_stream, 9 );
+ /* Trash the good number of bits read in the lookup table */
DumpBits( &p_vpar->bit_stream, p_vpar->pl_coded_pattern[i_vlc].i_length );
+ /* return the value from the vlc table */
return p_vpar->pl_coded_pattern[i_vlc].i_value;
}
*****************************************************************************/
int vpar_CodedPattern422( vpar_thread_t * p_vpar )
{
- /* À pomper dans Berkeley + attention ! y'a 2 bits en plus en MPEG2 */
+ int i_vlc = ShowBits( &p_vpar->bit_stream, 9 );
+ /* Supplementary 2 bits long code for 422 format */
+ int i_coded_block_pattern_1;
+ DumpBits( &p_vpar->bit_stream, p_vpar->pl_coded_pattern[i_vlc].i_length );
+ i_coded_block_pattern_1 = GetBits( &p_vpar->bit_stream, 2 );
+ /* the code is just to be added to the value found in the table */
+ return p_vpar->pl_coded_pattern[i_vlc].i_value |
+ (i_coded_block_pattern_1 << 6);
}
/*****************************************************************************
*****************************************************************************/
int vpar_CodedPattern444( vpar_thread_t * p_vpar )
{
- /* À pomper dans Berkeley + attention ! y'a 4 bits en plus en MPEG2 */
+ int i_vlc = ShowBits( &p_vpar->bit_stream, 9 );
+ int i_coded_block_pattern_2;
+ DumpBits( &p_vpar->bit_stream, p_vpar->pl_coded_pattern[i_vlc].i_length );
+ i_coded_block_pattern_2 = GetBits( &p_vpar->bit_stream, 6 );
+ return p_vpar->pl_coded_pattern[i_vlc].i_value |
+ ( i_coded_block_pattern_2 << 6 );
}
/*****************************************************************************
*****************************************************************************/
static void vpar_DecodeMPEG2Intra( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_b )
{
+ int i_dummy;
+ int i_nc;
+ int i_cc;
+ int i_coef;
+ int i_type;
+ int i_code;
+ int i_code5;
+ int i_select;
+ int i_offset;
+ int i_pos;
+ int i_dct_dc_size;
+ int i_dct_dc_diff;
+ int i_run;
+ int i_level;
+ int i_2b;
+ int i_4b;
+ boolean_t b_sign;
/* Lookup Table for the chromatic component */
static int pi_cc_index[12] = { 0, 0, 0, 0, 1, 2, 1, 2, 1, 2 };
- int i_cc = pi_cc_index[i_b];
+ /* Lookup table for the offset in the tables for ac coef decoding */
+ static lookup_t pl_offset_table[8] = { { 12, 4 }, { 8, 4 }, { 6, 8 },
+ { 4, 16 }, { 3, 16 }, { 2, 16 },
+ { 1, 16 }, { 0, 16 } };
+
+ i_cc = pi_cc_index[i_b];
/* Determine whether it is luminance or not (chrominance) */
- int i_type = ( i_cc + 1 ) / 2;
+ i_type = ( i_cc + 1 ) >> 1;
/* Decoding of the DC intra coefficient */
/* The nb of bits to parse depends on i_type */
- int i_code = ShowBits( &p_vpar->bit_stream, 9 + i_type );
+ i_code = ShowBits( &p_vpar->bit_stream, 9 + i_type );
/* To reduce memory occupation, there are two lookup tables
* See InitDCT above */
- int i_code5 = i_code >> 4;
+ i_code5 = i_code >> 4;
/* Shall we lookup in the first or in the second table ? */
- int i_select = ( i_code5 - 1 ) / 31;
+ i_select = ( i_code5 - 1 ) / 31;
/* Offset value for looking in the second table */
- int i_offset = 0x1f0 + ( i_type * 0x1f0 );
- int i_pos = i_code5 * ( ! i_select ) +
- ( i_code - i_offset ) * i_select;
- int i_dct_dc_size;
- int i_dct_dc_diff;
- i_dct_dc_size = p_vpar->pppl_dct_dc_size[i_select][i_type][i_pos].i_value;
+ i_offset = 0x1f0 + ( i_type * 0x1f0 );
+ i_pos = ( i_code5 * ( ! i_select ) ) + ( ( i_code - i_offset ) * i_select );
+ i_dct_dc_size = p_vpar->pppl_dct_dc_size[i_type][i_select][i_pos].i_value;
/* Dump the variable length code */
DumpBits( &p_vpar->bit_stream,
- p_vpar->pppl_dct_dc_size[i_select][i_type][i_pos].i_length );
+ p_vpar->pppl_dct_dc_size[i_type][i_select][i_pos].i_length );
+ /* Read the actual code with the good length */
i_dct_dc_diff = GetBits( &p_vpar->bit_stream, i_dct_dc_size );
p_vpar->slice.pi_dc_dct_pred[i_cc] += i_dct_dc_diff;
-
+#ifndef VDEC_DFT
+ p_mb->ppi_blocks[i_b][0] = ( p_vpar->slice.pi_dc_dct_pred[i_cc] <<
+ ( 3 - p_vpar->picture.i_intra_dc_precision ) );
+ i_nc = 1;
+#else
+ p_mb->ppi_blocks[i_b][0] = ( p_vpar->slice.pi_dc_dct_pred[i_cc] <<
+ ( 11 - p_vpar->picture.i_intra_dc_precision ) );
+ i_nc = ( p_vpar->slice.pi_dc_dct_pred[i_cc] != 0 );
+#endif
+
/* Decoding of the AC coefficients */
- //int i_dummy = 1;
-
+ i_coef = 0;
+ for( i_dummy = 1; i_dummy < 64; i_dummy++ )
+ {
+ i_code = ShowBits( &p_vpar->bit_stream, 16 );
+ i_2b = ! ( i_code >> 14 );
+ i_4b = ! ( ( i_code & 0x3C00 ) >> 10 );
+ /* Will contain the number of table to use in ppl_dct_coef */
+ i_select = i_2b + i_4b + ( i_code & 0x0200 ) + ( i_code & 0x0100 ) +
+ ( i_code & 0x0080 ) + ( i_code & 0x0040 ) +
+ ( i_code & 0x0020 ) + ( i_code & 0x0010 );
+ /* Shall we use B15 table or not */
+ i_type = p_vpar->picture.b_intra_vlc_format & ( ( i_select & 3 ) >> 1 );
+ i_select += (i_type * 7 );
+ i_offset = ( i_code >> pl_offset_table[i_select].i_value ) -
+ pl_offset_table[i_select].i_length;
+ i_run = ( * ( p_vpar->ppl_dct_coef[i_select]
+ + ( i_offset * sizeof(dct_lookup_t) ) ) ).i_run;
+ DumpBits( &p_vpar->bit_stream,
+ ( * ( p_vpar->ppl_dct_coef[i_select]
+ + ( i_offset * sizeof(dct_lookup_t) ) ) ).i_length );
+ switch( i_run )
+ {
+ case DCT_ESCAPE:
+ i_run = GetBits( &p_vpar->bit_stream, 6 );
+ i_level = GetBits( &p_vpar->bit_stream, 12 );
+ p_mb->ppi_blocks[i_b][i_dummy] = ( b_sign = ( i_level > 2047 ) )
+ ? ( -4096 + i_level )
+ : i_level;
+ i_coef = i_dummy;
+ i_dummy += i_run;
+ i_nc ++;
+ break;
+ case DCT_EOB:
+ i_dummy = 64;
+ break;
+ default:
+ i_level = ( * ( p_vpar->ppl_dct_coef[i_select]
+ + ( i_offset * sizeof(dct_lookup_t) ) ) ).i_level;
+ b_sign = Getbits( &p_vpar->bit_stream, 1 );
+ p_mb->ppi_blocks[i_b][i_dummy] = b_sign ? -i_level : i_level;
+ i_coef = i_dummy;
+ i_dummy += i_run;
+ i_nc ++;
+ }
+ }
+ if( i_nc == 1 )
+ {
+ p_mb->pf_idct[i_b] = vdec_SparseIDCT;
+ p_mb->pi_sparse_pos[i_b] = i_coef;
+ }
+ else
+ {
+ p_mb->pf_idct[i_b] = vdec_IDCT;
+ }
}
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