| /* /////////////////////////////////////////////////////////////////////// |
| // |
| // INTEL CORPORATION PROPRIETARY INFORMATION |
| // This software is supplied under the terms of a license agreement or |
| // nondisclosure agreement with Intel Corporation and may not be copied |
| // or disclosed except in accordance with the terms of that agreement. |
| // Copyright (c) 2008 Intel Corporation. All Rights Reserved. |
| // |
| // Description: Parses VC-1 picture layer for advanced profile. |
| // |
| */ |
| |
| #include "vc1parse.h" |
| #include "viddec_fw_debug.h" |
| |
| /*------------------------------------------------------------------------------ |
| * Parse picture layer. This function parses the picture header for advanced |
| * profile down to POSTPROC syntax element. |
| * Table 18 of SMPTE 421M for progressive I or BI picture. |
| * Table 20 of SMPTE 421M for progressive P picture. |
| * Table 22 of SMPTE 421M for progressive B picture. |
| * Table 23 of SMPTE 421M for skipped picture. |
| * Table 82 of SMPTE 421M for interlace I or BI frame. |
| * Table 83 of SMPTE 421M for interlace P frame. |
| * Table 84 of SMPTE 421M for interlace B frame. |
| *------------------------------------------------------------------------------ |
| */ |
| |
| vc1_Status vc1_ParsePictureHeader_Adv(void* ctxt, vc1_Info *pInfo) |
| { |
| uint32_t i = 0; |
| uint32_t tempValue; |
| vc1_Status status = VC1_STATUS_OK; |
| uint32_t number_of_pan_scan_window; |
| vc1_metadata_t *md = &pInfo->metadata; |
| vc1_PictureLayerHeader *picLayerHeader = &pInfo->picLayerHeader; |
| |
| if (md->INTERLACE == 1) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->FCM); |
| if (picLayerHeader->FCM) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->FCM); |
| if (picLayerHeader->FCM) |
| { |
| picLayerHeader->FCM = VC1_FCM_FIELD_INTERLACE; |
| return VC1_STATUS_PARSE_ERROR; |
| } |
| else |
| picLayerHeader->FCM = VC1_FCM_FRAME_INTERLACE; |
| } |
| else |
| picLayerHeader->FCM = VC1_FCM_PROGRESSIVE; |
| } |
| else |
| picLayerHeader->FCM = VC1_FCM_PROGRESSIVE; |
| |
| |
| VC1_GET_BITS9(1, picLayerHeader->PTYPE); |
| if (picLayerHeader->PTYPE) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PTYPE); |
| if (picLayerHeader->PTYPE) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PTYPE); |
| if (picLayerHeader->PTYPE) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PTYPE); |
| if (picLayerHeader->PTYPE) |
| picLayerHeader->PTYPE = VC1_SKIPPED_FRAME; |
| else |
| picLayerHeader->PTYPE = VC1_BI_FRAME; |
| } |
| else |
| picLayerHeader->PTYPE = VC1_I_FRAME; |
| } |
| else |
| picLayerHeader->PTYPE = VC1_B_FRAME; |
| } |
| else |
| picLayerHeader->PTYPE = VC1_P_FRAME; |
| |
| if (picLayerHeader->PTYPE != VC1_SKIPPED_FRAME) |
| { |
| if (md->TFCNTRFLAG) |
| { |
| VC1_GET_BITS9(8, picLayerHeader->TFCNTR); /* TFCNTR. */ |
| } |
| } |
| |
| if (md->PULLDOWN) |
| { |
| if ((md->INTERLACE == 0) || (md->PSF == 1)) |
| { |
| VC1_GET_BITS9(2, picLayerHeader->RPTFRM); |
| } |
| else |
| { |
| VC1_GET_BITS9(1, picLayerHeader->TFF); |
| VC1_GET_BITS9(1, picLayerHeader->RFF); |
| } |
| } |
| |
| if (md->PANSCAN_FLAG == 1) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PS_PRESENT); /* PS_PRESENT. */ |
| if (picLayerHeader->PS_PRESENT == 1) |
| { |
| if ((md->INTERLACE == 1) && |
| (md->PSF == 0)) |
| { |
| if (md->PULLDOWN == 1) |
| number_of_pan_scan_window = 2 + picLayerHeader->RFF; |
| else |
| number_of_pan_scan_window = 2; |
| } |
| else |
| { |
| if (md->PULLDOWN == 1) |
| number_of_pan_scan_window = 1 + picLayerHeader->RPTFRM; |
| else |
| number_of_pan_scan_window = 1; |
| } |
| picLayerHeader->number_of_pan_scan_window = number_of_pan_scan_window; |
| |
| for (i = 0; i < number_of_pan_scan_window; i++) |
| { |
| VC1_GET_BITS(18, picLayerHeader->PAN_SCAN_WINDOW[i].hoffset); /* PS_HOFFSET. */ |
| VC1_GET_BITS(18, picLayerHeader->PAN_SCAN_WINDOW[i].voffset); /* PS_VOFFSET. */ |
| VC1_GET_BITS(14, picLayerHeader->PAN_SCAN_WINDOW[i].width); /* PS_WIDTH. */ |
| VC1_GET_BITS(14, picLayerHeader->PAN_SCAN_WINDOW[i].height); /* PS_HEIGHT. */ |
| } |
| } |
| } |
| |
| if (picLayerHeader->PTYPE != VC1_SKIPPED_FRAME) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->RNDCTRL); |
| md->RNDCTRL = picLayerHeader->RNDCTRL; |
| |
| if ((md->INTERLACE == 1) || |
| (picLayerHeader->FCM != VC1_FCM_PROGRESSIVE)) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->UVSAMP); |
| } |
| |
| if ((md->FINTERPFLAG == 1) && |
| (picLayerHeader->FCM == VC1_FCM_PROGRESSIVE)) |
| { |
| VC1_GET_BITS9(1, tempValue); /* INTERPFRM. */ |
| } |
| |
| if ((picLayerHeader->PTYPE == VC1_B_FRAME) && |
| (picLayerHeader->FCM == VC1_FCM_PROGRESSIVE)) |
| { |
| if ((status = vc1_DecodeHuffmanPair(ctxt, VC1_BFRACTION_TBL, |
| &picLayerHeader->BFRACTION_NUM, &picLayerHeader->BFRACTION_DEN)) |
| != VC1_STATUS_OK) |
| { |
| return status; |
| } |
| } |
| |
| VC1_GET_BITS9(5, picLayerHeader->PQINDEX); |
| if ((status = vc1_CalculatePQuant(pInfo)) != VC1_STATUS_OK) |
| return status; |
| |
| if (picLayerHeader->PQINDEX <= 8) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->HALFQP); |
| } |
| else |
| picLayerHeader->HALFQP = 0; |
| |
| if (md->QUANTIZER == 1) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PQUANTIZER); |
| picLayerHeader->UniformQuant = picLayerHeader->PQUANTIZER; |
| } |
| |
| if (md->POSTPROCFLAG == 1) |
| { |
| VC1_GET_BITS9(2, picLayerHeader->POSTPROC); |
| } |
| } |
| |
| return vc1_ParsePictureFieldHeader_Adv(ctxt, pInfo); |
| } |
| |
| /*------------------------------------------------------------------------------ |
| * Parse picture layer. This function parses the picture header for advanced |
| * profile down to BFRACTION syntax element. |
| * Table 85 of SMPTE 421M. |
| *------------------------------------------------------------------------------ |
| */ |
| |
| vc1_Status vc1_ParseFieldHeader_Adv(void* ctxt, vc1_Info *pInfo) |
| { |
| uint32_t i = 0; |
| vc1_Status status = VC1_STATUS_OK; |
| uint32_t number_of_pan_scan_window; |
| vc1_metadata_t *md = &pInfo->metadata; |
| vc1_PictureLayerHeader *picLayerHeader = &pInfo->picLayerHeader; |
| |
| VC1_GET_BITS9(1, picLayerHeader->FCM); |
| if (picLayerHeader->FCM) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->FCM); |
| if (picLayerHeader->FCM) |
| picLayerHeader->FCM = VC1_FCM_FIELD_INTERLACE; |
| else |
| picLayerHeader->FCM = VC1_FCM_FRAME_INTERLACE; |
| } |
| else |
| picLayerHeader->FCM = VC1_FCM_PROGRESSIVE; |
| if (picLayerHeader->FCM != VC1_FCM_FIELD_INTERLACE) |
| return VC1_STATUS_PARSE_ERROR; |
| |
| VC1_GET_BITS9(3, picLayerHeader->FPTYPE); |
| if (picLayerHeader->FPTYPE == 0) |
| { |
| picLayerHeader->PTypeField1 = VC1_I_FRAME; |
| picLayerHeader->PTypeField2 = VC1_I_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 1) |
| { |
| picLayerHeader->PTypeField1 = VC1_I_FRAME; |
| picLayerHeader->PTypeField2 = VC1_P_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 2) |
| { |
| picLayerHeader->PTypeField1 = VC1_P_FRAME; |
| picLayerHeader->PTypeField2 = VC1_I_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 3) |
| { |
| picLayerHeader->PTypeField1 = VC1_P_FRAME; |
| picLayerHeader->PTypeField2 = VC1_P_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 4) |
| { |
| picLayerHeader->PTypeField1 = VC1_B_FRAME; |
| picLayerHeader->PTypeField2 = VC1_B_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 5) |
| { |
| picLayerHeader->PTypeField1 = VC1_B_FRAME; |
| picLayerHeader->PTypeField2 = VC1_BI_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 6) |
| { |
| picLayerHeader->PTypeField1 = VC1_BI_FRAME; |
| picLayerHeader->PTypeField2 = VC1_B_FRAME; |
| } |
| else if (picLayerHeader->FPTYPE == 7) |
| { |
| picLayerHeader->PTypeField1 = VC1_BI_FRAME; |
| picLayerHeader->PTypeField2 = VC1_BI_FRAME; |
| } |
| |
| if (md->TFCNTRFLAG) |
| { |
| VC1_GET_BITS9(8, picLayerHeader->TFCNTR); |
| } |
| |
| if (md->PULLDOWN == 1) |
| { |
| if (md->PSF == 1) |
| { |
| VC1_GET_BITS9(2, picLayerHeader->RPTFRM); |
| } |
| else |
| { |
| VC1_GET_BITS9(1, picLayerHeader->TFF); |
| VC1_GET_BITS9(1, picLayerHeader->RFF); |
| } |
| } else |
| picLayerHeader->TFF = 1; |
| |
| if (md->PANSCAN_FLAG == 1) |
| { |
| VC1_GET_BITS9(1, picLayerHeader->PS_PRESENT); |
| if (picLayerHeader->PS_PRESENT) |
| { |
| if (md->PULLDOWN) |
| number_of_pan_scan_window = 2 + picLayerHeader->RFF; |
| else |
| number_of_pan_scan_window = 2; |
| picLayerHeader->number_of_pan_scan_window =number_of_pan_scan_window; |
| |
| for (i = 0; i < number_of_pan_scan_window; i++) |
| { |
| VC1_GET_BITS(18, picLayerHeader->PAN_SCAN_WINDOW[i].hoffset); /* PS_HOFFSET. */ |
| VC1_GET_BITS(18, picLayerHeader->PAN_SCAN_WINDOW[i].voffset); /* PS_VOFFSET. */ |
| VC1_GET_BITS(14, picLayerHeader->PAN_SCAN_WINDOW[i].width); /* PS_WIDTH. */ |
| VC1_GET_BITS(14, picLayerHeader->PAN_SCAN_WINDOW[i].height); /* PS_HEIGHT. */ |
| } |
| } |
| } |
| VC1_GET_BITS9(1, md->RNDCTRL); |
| |
| #ifdef VBP |
| picLayerHeader->RNDCTRL = md->RNDCTRL; |
| #endif |
| |
| VC1_GET_BITS9(1, picLayerHeader->UVSAMP); |
| |
| if ((md->REFDIST_FLAG == 1) && (picLayerHeader->FPTYPE <= 3)) |
| { |
| int32_t tmp; |
| if ((status = vc1_DecodeHuffmanOne(ctxt, &tmp, |
| VC1_REFDIST_TBL)) != VC1_STATUS_OK) |
| { |
| return status; |
| } |
| md->REFDIST = tmp; |
| } else if (md->REFDIST_FLAG == 0) { |
| md->REFDIST = 0; |
| } |
| |
| if ((picLayerHeader->FPTYPE >= 4) && (picLayerHeader->FPTYPE <= 7)) |
| { |
| if ((status = vc1_DecodeHuffmanPair(ctxt, VC1_BFRACTION_TBL, |
| &picLayerHeader->BFRACTION_NUM, &picLayerHeader->BFRACTION_DEN)) != |
| VC1_STATUS_OK) |
| { |
| return status; |
| } |
| } |
| |
| if (picLayerHeader->CurrField == 0) |
| { |
| picLayerHeader->PTYPE = picLayerHeader->PTypeField1; |
| picLayerHeader->BottomField = (uint8_t) (1 - picLayerHeader->TFF); |
| } |
| else |
| { |
| picLayerHeader->BottomField = (uint8_t) (picLayerHeader->TFF); |
| picLayerHeader->PTYPE = picLayerHeader->PTypeField2; |
| } |
| |
| return vc1_ParsePictureFieldHeader_Adv(ctxt, pInfo); |
| } |
| |
| /*------------------------------------------------------------------------------ |
| * Parse picture layer. This function calls the appropriate function to further |
| * parse the picture header for advanced profile down to macroblock layer. |
| *------------------------------------------------------------------------------ |
| */ |
| |
| vc1_Status vc1_ParsePictureFieldHeader_Adv(void* ctxt, vc1_Info *pInfo) |
| { |
| vc1_Status status = VC1_STATUS_PARSE_ERROR; |
| |
| if (pInfo->picLayerHeader.FCM == VC1_FCM_PROGRESSIVE) |
| { |
| if ((pInfo->picLayerHeader.PTYPE == VC1_I_FRAME) || |
| (pInfo->picLayerHeader.PTYPE == VC1_BI_FRAME)) |
| { |
| status = vc1_ParsePictureHeader_ProgressiveIpicture_Adv(ctxt, pInfo); |
| } |
| else if (pInfo->picLayerHeader.PTYPE == VC1_P_FRAME) |
| status = vc1_ParsePictureHeader_ProgressivePpicture_Adv(ctxt, pInfo); |
| else if (pInfo->picLayerHeader.PTYPE == VC1_B_FRAME) |
| status = vc1_ParsePictureHeader_ProgressiveBpicture_Adv(ctxt, pInfo); |
| else if (pInfo->picLayerHeader.PTYPE == VC1_SKIPPED_FRAME) |
| status = VC1_STATUS_OK; |
| } |
| else if (pInfo->picLayerHeader.FCM == VC1_FCM_FRAME_INTERLACE) |
| { |
| if ((pInfo->picLayerHeader.PTYPE == VC1_I_FRAME) || |
| (pInfo->picLayerHeader.PTYPE == VC1_BI_FRAME)) |
| { |
| status = vc1_ParsePictureHeader_InterlaceIpicture_Adv(ctxt, pInfo); |
| } |
| else if (pInfo->picLayerHeader.PTYPE == VC1_P_FRAME) |
| status = vc1_ParsePictureHeader_InterlacePpicture_Adv(ctxt, pInfo); |
| else if (pInfo->picLayerHeader.PTYPE == VC1_B_FRAME) |
| status = vc1_ParsePictureHeader_InterlaceBpicture_Adv(ctxt, pInfo); |
| else if (pInfo->picLayerHeader.PTYPE == VC1_SKIPPED_FRAME) |
| status = VC1_STATUS_OK; |
| } |
| else if (pInfo->picLayerHeader.FCM == VC1_FCM_FIELD_INTERLACE) |
| { |
| int ptype; |
| if ( pInfo->picLayerHeader.CurrField == 0) |
| ptype = pInfo->picLayerHeader.PTypeField1; |
| else |
| ptype = pInfo->picLayerHeader.PTypeField2; |
| |
| if ((ptype == VC1_I_FRAME) || |
| (ptype == VC1_BI_FRAME)) |
| { |
| status = vc1_ParseFieldHeader_InterlaceIpicture_Adv(ctxt, pInfo); |
| } |
| else if (ptype == VC1_P_FRAME) |
| status = vc1_ParseFieldHeader_InterlacePpicture_Adv(ctxt, pInfo); |
| else if (ptype == VC1_B_FRAME) |
| status = vc1_ParseFieldHeader_InterlaceBpicture_Adv(ctxt, pInfo); |
| else if (ptype == VC1_SKIPPED_FRAME) |
| status = VC1_STATUS_OK; |
| } |
| |
| return status; |
| } |
