diff options
Diffstat (limited to 'common/ih264_common_tables.c')
| -rw-r--r-- | common/ih264_common_tables.c | 136 |
1 files changed, 56 insertions, 80 deletions
diff --git a/common/ih264_common_tables.c b/common/ih264_common_tables.c index df09f5a..1489628 100644 --- a/common/ih264_common_tables.c +++ b/common/ih264_common_tables.c @@ -17,6 +17,7 @@ ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ + /** ******************************************************************************* * @file @@ -26,12 +27,10 @@ * Contains common global tables * * @author -* Harish M -* -* @par List of Functions: +* ittiam * * @remarks -* None +* none * ******************************************************************************* */ @@ -40,27 +39,27 @@ /* File Includes */ /*****************************************************************************/ -/* User include files */ +/* User Include Files */ #include "ih264_typedefs.h" -#include "ih264_defs.h" #include "ih264_macros.h" +#include "ih264_defs.h" #include "ih264_structs.h" #include "ih264_common_tables.h" /*****************************************************************************/ -/* Extern global definitions */ +/* Global definitions */ /*****************************************************************************/ /** - ****************************************************************************** - * @brief while encoding, basing on the input configuration parameters, the - * the level of the bitstream is computed basing on the table below. - * input : table_idx - * output : level_idc or cpb size - * @remarks Table A-1 – level table limits - ****************************************************************************** - */ +****************************************************************************** +* @brief while encoding, basing on the input configuration parameters, the +* the level of the bitstream is computed basing on the table below. +* input : table_idx +* output : level_idc or cpb size +* @remarks Table A-1 - level table limits +****************************************************************************** +*/ const level_tables_t gas_ih264_lvl_tbl[16] = { { IH264_LEVEL_10, 1485, 99, 297, 64, 175, 64 }, @@ -81,10 +80,7 @@ const level_tables_t gas_ih264_lvl_tbl[16] = { IH264_LEVEL_51, 983040, 36864, 138240, 240000, 240000, 512 }, }; - -/** - * Array containing supported levels - */ +/* Array containing supported levels */ const WORD32 gai4_ih264_levels[] = { IH264_LEVEL_10, @@ -104,10 +100,7 @@ const WORD32 gai4_ih264_levels[] = IH264_LEVEL_51, }; - -/** - * Array giving size of max luma samples in a picture for a given level - */ +/* Array giving size of max luma samples in a picture for a given level */ const WORD32 gai4_ih264_max_luma_pic_size[] = { /* Level 1 */ @@ -142,9 +135,8 @@ const WORD32 gai4_ih264_max_luma_pic_size[] = 9437184 }; - -/** Max width and height allowed for a given level */ -/** This is derived as SQRT(8 * gai4_ih264_max_luma_pic_size[]) */ +/* Max width and height allowed for a given level */ +/* This is derived as SQRT(8 * gai4_ih264_max_luma_pic_size[]) */ const WORD32 gai4_ih264_max_wd_ht[] = { /* Level 1 */ @@ -179,8 +171,8 @@ const WORD32 gai4_ih264_max_wd_ht[] = 8689 }; -/** Min width and height allowed for a given level */ -/** This is derived as gai4_ih264_max_luma_pic_size[]/gai4_ih264_max_wd_ht[] */ +/* Min width and height allowed for a given level */ +/* This is derived as gai4_ih264_max_luma_pic_size[]/gai4_ih264_max_wd_ht[] */ const WORD32 gai4_ih264_min_wd_ht[] = { /* Level 1 */ @@ -216,8 +208,7 @@ const WORD32 gai4_ih264_min_wd_ht[] = }; - -/** Table 7-11 Macroblock types for I slices */ +/* Table 7-11 Macroblock types for I slices */ intra_mbtype_info_t gas_ih264_i_mbtype_info[] = { /* For first entry, if transform_size_8x8_flag is 1, mode will be MBPART_I8x8 */ @@ -250,7 +241,7 @@ intra_mbtype_info_t gas_ih264_i_mbtype_info[] = {0, MBPART_IPCM, VERT_I16x16, 0, 0} }; -/** Table 7-13 Macroblock types for P slices */ +/* Table 7-13 Macroblock types for P slices */ inter_mbtype_info_t gas_ih264_p_mbtype_info[] = { {1, MBPART_L0, MBPART_NA, 16, 16}, @@ -260,7 +251,7 @@ inter_mbtype_info_t gas_ih264_p_mbtype_info[] = {4, MBPART_NA, MBPART_NA, 8, 8}, }; -/** Table 7-14 Macroblock types for B slices */ +/* Table 7-14 Macroblock types for B slices */ inter_mbtype_info_t gas_ih264_b_mbtype_info[] = { {0, MBPART_DIRECT, MBPART_NA, 8, 8, }, @@ -288,7 +279,7 @@ inter_mbtype_info_t gas_ih264_b_mbtype_info[] = {4, MBPART_NA, MBPART_NA, 8, 8, }, }; -/** Table 7-17 – Sub-macroblock types in P macroblocks */ +/* Table 7-17 - Sub-macroblock types in P macroblocks */ submbtype_info_t gas_ih264_p_submbtype_info[] = { {1, MBPART_L0, 8, 8}, @@ -297,7 +288,7 @@ submbtype_info_t gas_ih264_p_submbtype_info[] = {4, MBPART_L0, 4, 4}, }; -/** Table 7-18 – Sub-macroblock types in B macroblocks */ +/* Table 7-18 - Sub-macroblock types in B macroblocks */ submbtype_info_t gas_ih264_b_submbtype_info[] = { {4, MBPART_DIRECT, 4, 4}, @@ -315,9 +306,6 @@ submbtype_info_t gas_ih264_b_submbtype_info[] = {4, MBPART_BI, 4, 4}, }; - - - const UWORD8 gau1_ih264_inv_scan_prog4x4[] = { 0, 1, 4, 8, @@ -334,7 +322,7 @@ const UWORD8 gau1_ih264_inv_scan_int4x4[] = 3, 7, 11, 15 }; -/** Inverse scan tables for individual 4x4 blocks of 8x8 transform coeffs of CAVLC */ +/* Inverse scan tables for individual 4x4 blocks of 8x8 transform coeffs of CAVLC */ /* progressive */ const UWORD8 gau1_ih264_inv_scan_prog8x8_cavlc[64] = { @@ -347,7 +335,6 @@ const UWORD8 gau1_ih264_inv_scan_prog8x8_cavlc[64] = 16, 10, 25, 5, 33, 34, 6, 28, 56, 36, 23, 51, 45, 46, 54, 63 }; - /* interlace */ const UWORD8 gau1_ih264_inv_scan_int8x8_cavlc[64] = { @@ -361,11 +348,8 @@ const UWORD8 gau1_ih264_inv_scan_int8x8_cavlc[64] = 59, 21, 60, 37, 30, 46, 31, 63 }; - - /*Inverse scan tables for individual 8x8 blocks of 8x8 transform coeffs of CABAC */ /* progressive */ - const UWORD8 gau1_ih264_inv_scan_prog8x8_cabac[64] = { 0, 1, 8, 16, 9, 2, 3, 10, @@ -377,10 +361,7 @@ const UWORD8 gau1_ih264_inv_scan_prog8x8_cabac[64] = 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63 }; - - /* interlace */ - const UWORD8 gau1_ih264_inv_scan_int8x8_cabac[64] = { 0, 8, 16, 1, 9, 24, 32, 17, @@ -393,7 +374,6 @@ const UWORD8 gau1_ih264_inv_scan_int8x8_cabac[64] = 54, 62, 23, 31, 39, 47, 55, 63 }; - const UWORD8 *const gpau1_ih264_inv_scan8x8[] = { gau1_ih264_inv_scan_prog8x8_cavlc, @@ -416,7 +396,6 @@ const UWORD8 gau1_ih264_8x8_subblk_idx[] = 10, 11, 14, 15 }; - /* Table 8-15 Chroma QP offset table */ const UWORD8 gau1_ih264_chroma_qp[] = { @@ -429,7 +408,6 @@ const UWORD8 gau1_ih264_chroma_qp[] = 39, 39, 39, 39 }; - /** ****************************************************************************** * @brief look up table to compute neigbour availability of 4x4 blocks @@ -493,7 +471,7 @@ const UWORD8 gau1_ih264_8x8_ngbr_avbl[16][4] = { 0xf, 0xf, 0xf, 0x7 }, }; -/** Table 7-3 Default intra 4x4 scaling list */ +/* Table 7-3 Default intra 4x4 scaling list */ const UWORD16 gau2_ih264_default_intra4x4_scaling_list[] = { 6, 13, 13, 20, @@ -502,7 +480,7 @@ const UWORD16 gau2_ih264_default_intra4x4_scaling_list[] = 32, 37, 37, 42 }; -/** Table 7-3 Default inter 4x4 scaling list */ +/* Table 7-3 Default inter 4x4 scaling list */ const UWORD16 gau2_ih264_default_inter4x4_scaling_list[] = { 10, 14, 14, 20, @@ -529,7 +507,7 @@ const UWORD16 gau2_ih264_default_inter4x4_weight_scale[] = 24, 27, 30, 34 }; -/** Table 7-4 Default intra 8x8 scaling list */ +/* Table 7-4 Default intra 8x8 scaling list */ const UWORD16 gau2_ih264_default_intra8x8_scaling_list[] = { 6, 10, 10, 13, 11, 13, 16, 16, @@ -542,7 +520,7 @@ const UWORD16 gau2_ih264_default_intra8x8_scaling_list[] = 36, 36, 38, 38, 38, 40, 40, 42 }; -/** Table 7-4 Default inter 8x8 scaling list */ +/* Table 7-4 Default inter 8x8 scaling list */ const UWORD16 gau2_ih264_default_inter8x8_scaling_list[] = { 9, 13, 13, 15, 13, 15, 17, 17, @@ -602,22 +580,20 @@ const UWORD16 gau2_ih264_flat_8x8_weight_scale[] = 16, 16, 16, 16, 16, 16, 16, 16 }; - /** - ****************************************************************************** - * @brief Scale Table for inverse quantizing 4x4 subblock. To inverse quantize - * a given 4x4 quantized block, the coefficient at index location (i,j) is scaled - * by one of the constants in this table and right shift the result by abs (4 - - * floor(qp/6)), here qp is the quantization parameter used to quantize the mb. - * - * input : 16 * qp%6, index location (i,j) - * output : scale constant. - * - * @remarks 16 constants for each index position of the subblock and 6 for each - * qp%6 in the range 0-5 inclusive. - ****************************************************************************** - */ - +****************************************************************************** +* @brief Scale Table for inverse quantizing 4x4 subblock. To inverse quantize +* a given 4x4 quantized block, the coefficient at index location (i,j) is scaled +* by one of the constants in this table and right shift the result by abs (4 - +* floor(qp/6)), here qp is the quantization parameter used to quantize the mb. +* +* input : 16 * qp%6, index location (i,j) +* output : scale constant. +* +* @remarks 16 constants for each index position of the subblock and 6 for each +* qp%6 in the range 0-5 inclusive. +****************************************************************************** +*/ const UWORD16 gau2_ih264_iquant_scale_matrix_4x4[96] = { 10, 13, 10, 13, @@ -653,19 +629,19 @@ const UWORD16 gau2_ih264_iquant_scale_matrix_4x4[96] = }; /** - ****************************************************************************** - * @brief Scale Table for inverse quantizing 8x8 subblock. To inverse quantize - * a given 8x8 quantized block, the coefficient at index location (i,j) is scaled - * by one of the constants in this table and right shift the result by abs (4 - - * floor(qp/6)), here qp is the quantization parameter used to quantize the mb. - * - * input : qp%6, index location (i,j) - * output : scale constant. - * - * @remarks 64 constants for each index position of the subblock and 6 for each - * qp%6 in the range 0-5 inclusive. - ****************************************************************************** - */ +****************************************************************************** +* @brief Scale Table for inverse quantizing 8x8 subblock. To inverse quantize +* a given 8x8 quantized block, the coefficient at index location (i,j) is scaled +* by one of the constants in this table and right shift the result by abs (4 - +* floor(qp/6)), here qp is the quantization parameter used to quantize the mb. +* +* input : qp%6, index location (i,j) +* output : scale constant. +* +* @remarks 64 constants for each index position of the subblock and 6 for each +* qp%6 in the range 0-5 inclusive. +****************************************************************************** +*/ const UWORD16 gau2_ih264_iquant_scale_matrix_8x8 [384] = { 20, 19, 25, 19, 20, 19, 25, 19, |