1 /* /////////////////////////////////////////////////////////////////////// 2 // 3 // INTEL CORPORATION PROPRIETARY INFORMATION 4 // This software is supplied under the terms of a license agreement or 5 // nondisclosure agreement with Intel Corporation and may not be copied 6 // or disclosed except in accordance with the terms of that agreement. 7 // Copyright (c) 2008 Intel Corporation. All Rights Reserved. 8 // 9 // Description: Parses VC-1 picture layer for progressive I or BI picture in 10 // advanced profile bitstream. 11 // 12 */ 13 14 #include "vc1parse.h" 15 #include "viddec_fw_debug.h" 16 /*------------------------------------------------------------------------------ 17 * Parse picture layer. This function parses progressive I or BI picture for 18 * advanced profile bitstream. 19 * Table 18 of SMPTE 421M after processing up to POSTPROC by 20 * vc1_ParsePictureHeader_Adv() but stopping before processing of macroblock 21 * layer. 22 *------------------------------------------------------------------------------ 23 */ 24 25 vc1_Status vc1_ParsePictureHeader_ProgressiveIpicture_Adv(void* ctxt, vc1_Info *pInfo) 26 { 27 vc1_Status status = VC1_STATUS_OK; 28 vc1_metadata_t *md = &pInfo->metadata; 29 vc1_PictureLayerHeader *picLayerHeader = &pInfo->picLayerHeader; 30 31 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 32 md->widthMB, md->heightMB, BPP_ACPRED)) != VC1_STATUS_OK) 33 { 34 return status; 35 } 36 37 if ((md->OVERLAP == 1) && (picLayerHeader->PQUANT <= 8)) 38 { 39 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 40 if (picLayerHeader->CONDOVER) 41 { 42 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 43 if (! picLayerHeader->CONDOVER) 44 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_ALL; 45 else 46 { 47 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_SOME; 48 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 49 md->widthMB, 50 md->heightMB, BPP_OVERFLAGS)) != VC1_STATUS_OK) 51 { 52 return status; 53 } 54 } 55 } 56 else 57 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_NONE; 58 } 59 60 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 61 if (picLayerHeader->TRANSACFRM) 62 { 63 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 64 picLayerHeader->TRANSACFRM += 2; 65 } 66 67 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 68 if (picLayerHeader->TRANSACFRM2) 69 { 70 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 71 picLayerHeader->TRANSACFRM2 += 2; 72 } 73 74 VC1_GET_BITS9(1, picLayerHeader->TRANSDCTAB); 75 76 status = vc1_VOPDQuant(ctxt, pInfo); 77 78 /* Skip parsing of macroblock layer. */ 79 80 return status; 81 } 82 83 /*------------------------------------------------------------------------------ 84 * Parse picture layer. This function parses interlace I or BI frame for 85 * advanced profile bitstream. 86 * Table 82 of SMPTE 421M after processing up to POSTPROC by 87 * vc1_ParsePictureHeader_Adv() but stopping before processing of macroblock 88 * layer. 89 *------------------------------------------------------------------------------ 90 */ 91 92 vc1_Status vc1_ParsePictureHeader_InterlaceIpicture_Adv(void* ctxt, vc1_Info *pInfo) 93 { 94 vc1_Status status = VC1_STATUS_OK; 95 vc1_metadata_t *md = &pInfo->metadata; 96 vc1_PictureLayerHeader *picLayerHeader = &pInfo->picLayerHeader; 97 98 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 99 md->widthMB, md->heightMB, BPP_FIELDTX)) != VC1_STATUS_OK) 100 { 101 return status; 102 } 103 104 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 105 md->widthMB, md->heightMB, BPP_ACPRED)) != VC1_STATUS_OK) 106 { 107 return status; 108 } 109 110 if ((md->OVERLAP == 1) && (picLayerHeader->PQUANT <= 8)) 111 { 112 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 113 if (picLayerHeader->CONDOVER) 114 { 115 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 116 if (! picLayerHeader->CONDOVER) 117 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_ALL; 118 else 119 { 120 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_SOME; 121 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 122 md->widthMB, 123 md->heightMB, BPP_OVERFLAGS)) != VC1_STATUS_OK) 124 { 125 return status; 126 } 127 } 128 } 129 else 130 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_NONE; 131 } 132 133 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 134 if (picLayerHeader->TRANSACFRM) 135 { 136 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 137 picLayerHeader->TRANSACFRM += 2; 138 } 139 140 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 141 if (picLayerHeader->TRANSACFRM2) 142 { 143 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 144 picLayerHeader->TRANSACFRM2 += 2; 145 } 146 147 VC1_GET_BITS9(1, picLayerHeader->TRANSDCTAB); 148 149 status = vc1_VOPDQuant(ctxt, pInfo); 150 151 /* Skip parsing of macroblock layer. */ 152 153 return status; 154 } 155 156 /*------------------------------------------------------------------------------ 157 * Parse picture layer. This function parses interlace I or BI field for 158 * advanced profile bitstream. 159 * Table 87 of SMPTE 421M after processing up to BFRACTION by 160 * vc1_ParseFieldHeader_Adv() but stopping before processing of macroblock 161 * layer. 162 *------------------------------------------------------------------------------ 163 */ 164 165 vc1_Status vc1_ParseFieldHeader_InterlaceIpicture_Adv(void* ctxt, vc1_Info *pInfo) 166 { 167 uint32_t tempValue; 168 vc1_Status status = VC1_STATUS_OK; 169 vc1_metadata_t *md = &pInfo->metadata; 170 vc1_PictureLayerHeader *picLayerHeader = &pInfo->picLayerHeader; 171 172 // Reset MVMODE when the second field is an I picture 173 // to avoid carrying forward the mvmode values from previous field 174 // especially the intensity compensation value 175 picLayerHeader->MVMODE = 0; 176 177 VC1_GET_BITS9(5, picLayerHeader->PQINDEX); 178 if ((status = vc1_CalculatePQuant(pInfo)) != VC1_STATUS_OK) { 179 DEB("Error parsing I field \n"); 180 return status; 181 } 182 183 if (picLayerHeader->PQINDEX <= 8) 184 { 185 VC1_GET_BITS9(1, picLayerHeader->HALFQP); 186 } 187 else 188 picLayerHeader->HALFQP = 0; 189 190 if (md->QUANTIZER == 1) { 191 VC1_GET_BITS9(1, picLayerHeader->PQUANTIZER); 192 picLayerHeader->UniformQuant = picLayerHeader->PQUANTIZER; 193 } 194 195 if (md->POSTPROCFLAG == 1) 196 VC1_GET_BITS9(2, tempValue); /* POSTPROC. */ 197 198 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 199 md->widthMB, (md->heightMB+1)/2, BPP_ACPRED)) != 200 VC1_STATUS_OK) 201 { 202 DEB("Error parsing I field \n"); 203 return status; 204 } 205 206 if ((md->OVERLAP == 1) && (picLayerHeader->PQUANT <= 8)) 207 { 208 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 209 if (picLayerHeader->CONDOVER) 210 { 211 VC1_GET_BITS9(1, picLayerHeader->CONDOVER); 212 if (! picLayerHeader->CONDOVER) 213 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_ALL; 214 else 215 { 216 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_SOME; 217 218 if ((status = vc1_DecodeBitplane(ctxt, pInfo, 219 md->widthMB, 220 (md->heightMB+1)/2, BPP_OVERFLAGS)) != 221 VC1_STATUS_OK) 222 { 223 DEB("Error parsing I field \n"); 224 return status; 225 } 226 } 227 } 228 else 229 picLayerHeader->CONDOVER = VC1_CONDOVER_FLAG_NONE; 230 } 231 232 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 233 if (picLayerHeader->TRANSACFRM) 234 { 235 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM); 236 picLayerHeader->TRANSACFRM += 2; 237 } 238 239 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 240 if (picLayerHeader->TRANSACFRM2) 241 { 242 VC1_GET_BITS9(1, picLayerHeader->TRANSACFRM2); 243 picLayerHeader->TRANSACFRM2 += 2; 244 } 245 246 VC1_GET_BITS9(1, picLayerHeader->TRANSDCTAB); 247 248 status = vc1_VOPDQuant(ctxt, pInfo); 249 if (status != VC1_STATUS_OK) { 250 DEB("Error parsing I field \n"); 251 return status; 252 } 253 254 /* Skip parsing of macroblock layer. */ 255 256 return status; 257 } 258
