1 /*
2 * Copyright (c) 2021-2022, Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23 //!
24 //! \file decode_mpeg2_mem_compression.cpp
25 //! \brief Defines the common interface for Mpeg2 decode mmc
26 //! \details The mmc is to handle mmc operations,
27 //! including compression and decompressin of Mpeg2 decode
28 //!
29
30 #include "mos_defs.h"
31 #include "decode_mpeg2_mem_compression.h"
32 #include "decode_utils.h"
33
34 namespace decode
35 {
36
Mpeg2DecodeMemComp(CodechalHwInterfaceNext * hwInterface)37 Mpeg2DecodeMemComp::Mpeg2DecodeMemComp(CodechalHwInterfaceNext *hwInterface)
38 {
39 m_osInterface = hwInterface->GetOsInterface();
40 }
41
CheckReferenceList(Mpeg2BasicFeature & mpeg2BasicFeature,MOS_MEMCOMP_STATE & preDeblockSurfMmcState,MOS_MEMCOMP_STATE & postDeblockSurfMmcState)42 MOS_STATUS Mpeg2DecodeMemComp::CheckReferenceList(
43 Mpeg2BasicFeature &mpeg2BasicFeature, MOS_MEMCOMP_STATE &preDeblockSurfMmcState, MOS_MEMCOMP_STATE &postDeblockSurfMmcState)
44 {
45 MOS_STATUS eStatus = MOS_STATUS_SUCCESS;
46 DECODE_FUNC_CALL();
47 DECODE_CHK_NULL(m_osInterface);
48
49 if (((postDeblockSurfMmcState != MOS_MEMCOMP_DISABLED) ||
50 (preDeblockSurfMmcState != MOS_MEMCOMP_DISABLED)) &&
51 (mpeg2BasicFeature.m_mpeg2PicParams->m_pictureCodingType != I_TYPE))
52 {
53 bool selfReference = false;
54 if ((mpeg2BasicFeature.m_mpeg2PicParams->m_currPic.FrameIdx == mpeg2BasicFeature.m_mpeg2PicParams->m_forwardRefIdx) ||
55 (mpeg2BasicFeature.m_mpeg2PicParams->m_currPic.FrameIdx == mpeg2BasicFeature.m_mpeg2PicParams->m_backwardRefIdx))
56 {
57 selfReference = true;
58 }
59
60 if (selfReference)
61 {
62 postDeblockSurfMmcState = MOS_MEMCOMP_DISABLED;
63 preDeblockSurfMmcState = MOS_MEMCOMP_DISABLED;
64 DECODE_ASSERTMESSAGE("Self-reference is detected for P/B frames!");
65
66 //Decompress current frame to avoid green corruption in this error handling case
67 MOS_MEMCOMP_STATE mmcMode;
68 DECODE_CHK_STATUS(m_osInterface->pfnGetMemoryCompressionMode(m_osInterface,
69 &mpeg2BasicFeature.m_destSurface.OsResource,
70 &mmcMode));
71
72 if (mmcMode != MOS_MEMCOMP_DISABLED)
73 {
74 DECODE_CHK_STATUS(m_osInterface->pfnDecompResource(
75 m_osInterface,
76 &mpeg2BasicFeature.m_destSurface.OsResource));
77 }
78 }
79 }
80 return eStatus;
81 }
82
83 }
84