android ｗｉｆｉ display屏幕分辨率修改

/frameworks/av/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp

52 WifiDisplaySource::WifiDisplaySource(
53         const String16 &opPackageName,
54         const sp<ANetworkSession> &netSession,
55         const sp<IRemoteDisplayClient> &client,
56         const char *path)
57     : mOpPackageName(opPackageName),
58       mState(INITIALIZED),
59       mNetSession(netSession),
60       mClient(client),
61       mSessionID(0),
62       mStopReplyID(NULL),
63       mChosenRTPPort(-1),
64       mUsingPCMAudio(false),
65       mClientSessionID(0),
66       mReaperPending(false),
67       mNextCSeq(1),
68       mUsingHDCP(false),
69       mIsHDCP2_0(false),
70       mHDCPPort(0),
71       mHDCPInitializationComplete(false),
72       mSetupTriggerDeferred(false),
73       mPlaybackSessionEstablished(false) {
74     if (path != NULL) {
75         mMediaPath.setTo(path);
76     }
77
78     mSupportedSourceVideoFormats.disableAll();
79
80     mSupportedSourceVideoFormats.setNativeResolution(
81             VideoFormats::RESOLUTION_CEA, 5);  // 1280x720 p30
82
83     // Enable all resolutions up to 1280x720p30
84     mSupportedSourceVideoFormats.enableResolutionUpto(
85             VideoFormats::RESOLUTION_CEA, 5,
86             VideoFormats::PROFILE_CHP,  // Constrained High Profile
87             VideoFormats::LEVEL_32);    // Level 3.2
88 }

enum ProfileType {
PROFILE_CBP = 0,
PROFILE_CHP,
kNumProfileTypes,
};

enum LevelType {
LEVEL_31 = 0,
LEVEL_32,
LEVEL_40,
LEVEL_41,
LEVEL_42,
kNumLevelTypes,
};

enum ResolutionType {
RESOLUTION_CEA,
RESOLUTION_VESA,
RESOLUTION_HH,
kNumResolutionTypes,
};

美国消费电子协会（CEA），据CEA的更新定义，超高清电视、显示器和投影机必须至少拥有800万有效像素，分辨率达到3,840 x 2,160，能够播放超高清视频，拥有至少一个能够支持至少3840x2160分辨率的HDMI输入，最低色调深度为8比特，能够解码HDCP 2.2 DRM。

frameworks/av/media/libstagefright/wifi-display/VideoFormats.cpp