diff --git a/app/cli/commandlineparser.cpp b/app/cli/commandlineparser.cpp
index 37a98321..f932e5c2 100644
--- a/app/cli/commandlineparser.cpp
+++ b/app/cli/commandlineparser.cpp
@@ -374,6 +374,7 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     parser.addToggleOption("keep-awake", "prevent display sleep while streaming");
     parser.addToggleOption("performance-overlay", "show performance overlay");
     parser.addToggleOption("hdr", "HDR streaming");
+    parser.addToggleOption("yuv444", "YUV 4:4:4 sampling, if supported");
     parser.addChoiceOption("capture-system-keys", "capture system key combos", m_CaptureSysKeysModeMap.keys());
     parser.addChoiceOption("video-codec", "video codec", m_VideoCodecMap.keys());
     parser.addChoiceOption("video-decoder", "video decoder", m_VideoDecoderMap.keys());
@@ -425,7 +426,7 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
         }
     } else if (displaySet || parser.isSet("fps")) {
         preferences->bitrateKbps = preferences->getDefaultBitrate(
-            preferences->width, preferences->height, preferences->fps);
+            preferences->width, preferences->height, preferences->fps, preferences->enableYUV444);
     }
 
     // Resolve --packet-size option
@@ -493,6 +494,9 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
 
     // Resolve --hdr and --no-hdr options
     preferences->enableHdr = parser.getToggleOptionValue("hdr", preferences->enableHdr);
+
+    // Resolve --yuv444 and --no-yuv444 options
+    preferences->enableYUV444 = parser.getToggleOptionValue("yuv444", preferences->enableYUV444);
     
     // Resolve --capture-system-keys option
     if (parser.isSet("capture-system-keys")) {
diff --git a/app/gui/SettingsView.qml b/app/gui/SettingsView.qml
index 6f5ddd98..3806b45f 100644
--- a/app/gui/SettingsView.qml
+++ b/app/gui/SettingsView.qml
@@ -283,7 +283,8 @@ Flickable {
 
                                 StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
                                                                                                           StreamingPreferences.height,
-                                                                                                          StreamingPreferences.fps);
+                                                                                                          StreamingPreferences.fps,
+                                                                                                          StreamingPreferences.enableYUV444);
                                 slider.value = StreamingPreferences.bitrateKbps
                             }
 
@@ -448,7 +449,8 @@ Flickable {
 
                                 StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
                                                                                                           StreamingPreferences.height,
-                                                                                                          StreamingPreferences.fps);
+                                                                                                          StreamingPreferences.fps,
+                                                                                                          StreamingPreferences.enableYUV444);
                                 slider.value = StreamingPreferences.bitrateKbps
                             }
 
@@ -1615,6 +1617,31 @@ Flickable {
                                       qsTr("HDR streaming is not supported on this PC.")
                 }
 
+                CheckBox {
+                    id: enableYUV444
+                    width: parent.width
+                    text: qsTr("Enable YUV 4:4:4 (Experimental)")
+                    font.pointSize: 12
+
+                    checked: StreamingPreferences.enableYUV444
+                    onCheckedChanged: {
+                        StreamingPreferences.enableYUV444 = checked
+                        StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                                                                                  StreamingPreferences.height,
+                                                                                                  StreamingPreferences.fps,
+                                                                                                  StreamingPreferences.enableYUV444);
+                        slider.value = StreamingPreferences.bitrateKbps
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 5000
+                    ToolTip.visible: hovered
+                    ToolTip.text: enabled ?
+                                      qsTr("Good for streaming desktop and text-heavy games, not very good for fast-paced games.")
+                                    :
+                                      qsTr("YUV 4:4:4 is not supported on this PC.")
+                }
+
                 CheckBox {
                     id: enableMdns
                     width: parent.width
diff --git a/app/settings/streamingpreferences.cpp b/app/settings/streamingpreferences.cpp
index df654e42..ba3d8002 100644
--- a/app/settings/streamingpreferences.cpp
+++ b/app/settings/streamingpreferences.cpp
@@ -23,6 +23,7 @@
 #define SER_AUDIOCFG "audiocfg"
 #define SER_VIDEOCFG "videocfg"
 #define SER_HDR "hdr"
+#define SER_YUV444 "yuv444"
 #define SER_VIDEODEC "videodec"
 #define SER_WINDOWMODE "windowmode"
 #define SER_MDNS "mdns"
@@ -117,7 +118,8 @@ void StreamingPreferences::reload()
     width = settings.value(SER_WIDTH, 1280).toInt();
     height = settings.value(SER_HEIGHT, 720).toInt();
     fps = settings.value(SER_FPS, 60).toInt();
-    bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps)).toInt();
+    enableYUV444 = settings.value(SER_YUV444, false).toBool();
+    bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps, enableYUV444)).toInt();
     enableVsync = settings.value(SER_VSYNC, true).toBool();
     gameOptimizations = settings.value(SER_GAMEOPTS, true).toBool();
     playAudioOnHost = settings.value(SER_HOSTAUDIO, false).toBool();
@@ -322,6 +324,7 @@ void StreamingPreferences::save()
     settings.setValue(SER_SHOWPERFOVERLAY, showPerformanceOverlay);
     settings.setValue(SER_AUDIOCFG, static_cast<int>(audioConfig));
     settings.setValue(SER_HDR, enableHdr);
+    settings.setValue(SER_YUV444, enableYUV444);
     settings.setValue(SER_VIDEOCFG, static_cast<int>(videoCodecConfig));
     settings.setValue(SER_VIDEODEC, static_cast<int>(videoDecoderSelection));
     settings.setValue(SER_WINDOWMODE, static_cast<int>(windowMode));
@@ -337,7 +340,7 @@ void StreamingPreferences::save()
     settings.setValue(SER_KEEPAWAKE, keepAwake);
 }
 
-int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
+int StreamingPreferences::getDefaultBitrate(int width, int height, int fps, bool yuv444)
 {
     // Don't scale bitrate linearly beyond 60 FPS. It's definitely not a linear
     // bitrate increase for frame rate once we get to values that high.
@@ -385,5 +388,10 @@ int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
         }
     }
 
+    if (yuv444) {
+        // This is rough estimation based on the fact that 4:4:4 doubles the amount of raw YUV data compared to 4:2:0
+        resolutionFactor *= 2;
+    }
+
     return qRound(resolutionFactor * frameRateFactor) * 1000;
 }
diff --git a/app/settings/streamingpreferences.h b/app/settings/streamingpreferences.h
index 6a99833e..14aa74a0 100644
--- a/app/settings/streamingpreferences.h
+++ b/app/settings/streamingpreferences.h
@@ -12,7 +12,7 @@ public:
     static StreamingPreferences* get(QQmlEngine *qmlEngine = nullptr);
 
     Q_INVOKABLE static int
-    getDefaultBitrate(int width, int height, int fps);
+    getDefaultBitrate(int width, int height, int fps, bool yuv444);
 
     Q_INVOKABLE void save();
 
@@ -125,6 +125,7 @@ public:
     Q_PROPERTY(AudioConfig audioConfig MEMBER audioConfig NOTIFY audioConfigChanged)
     Q_PROPERTY(VideoCodecConfig videoCodecConfig MEMBER videoCodecConfig NOTIFY videoCodecConfigChanged)
     Q_PROPERTY(bool enableHdr MEMBER enableHdr NOTIFY enableHdrChanged)
+    Q_PROPERTY(bool enableYUV444 MEMBER enableYUV444 NOTIFY enableYUV444Changed)
     Q_PROPERTY(VideoDecoderSelection videoDecoderSelection MEMBER videoDecoderSelection NOTIFY videoDecoderSelectionChanged)
     Q_PROPERTY(WindowMode windowMode MEMBER windowMode NOTIFY windowModeChanged)
     Q_PROPERTY(WindowMode recommendedFullScreenMode MEMBER recommendedFullScreenMode CONSTANT)
@@ -169,6 +170,7 @@ public:
     AudioConfig audioConfig;
     VideoCodecConfig videoCodecConfig;
     bool enableHdr;
+    bool enableYUV444;
     VideoDecoderSelection videoDecoderSelection;
     WindowMode windowMode;
     WindowMode recommendedFullScreenMode;
@@ -191,6 +193,7 @@ signals:
     void audioConfigChanged();
     void videoCodecConfigChanged();
     void enableHdrChanged();
+    void enableYUV444Changed();
     void videoDecoderSelectionChanged();
     void uiDisplayModeChanged();
     void windowModeChanged();
diff --git a/app/streaming/session.cpp b/app/streaming/session.cpp
index d3795fee..c833134e 100644
--- a/app/streaming/session.cpp
+++ b/app/streaming/session.cpp
@@ -597,15 +597,22 @@ bool Session::initialize()
         return false;
     }
 
+    LiInitializeStreamConfiguration(&m_StreamConfig);
+    m_StreamConfig.width = m_Preferences->width;
+    m_StreamConfig.height = m_Preferences->height;
+
+    int x, y, width, height;
+    getWindowDimensions(x, y, width, height);
+
     // Create a hidden window to use for decoder initialization tests
-    SDL_Window* testWindow = SDL_CreateWindow("", 0, 0, 1280, 720,
+    SDL_Window* testWindow = SDL_CreateWindow("", x, y, width, height,
                                               SDL_WINDOW_HIDDEN | StreamUtils::getPlatformWindowFlags());
     if (!testWindow) {
         SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
                     "Failed to create test window with platform flags: %s",
                     SDL_GetError());
 
-        testWindow = SDL_CreateWindow("", 0, 0, 1280, 720, SDL_WINDOW_HIDDEN);
+        testWindow = SDL_CreateWindow("", x, y, width, height, SDL_WINDOW_HIDDEN);
         if (!testWindow) {
             SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                          "Failed to create window for hardware decode test: %s",
@@ -621,9 +628,6 @@ bool Session::initialize()
     LiInitializeVideoCallbacks(&m_VideoCallbacks);
     m_VideoCallbacks.setup = drSetup;
 
-    LiInitializeStreamConfiguration(&m_StreamConfig);
-    m_StreamConfig.width = m_Preferences->width;
-    m_StreamConfig.height = m_Preferences->height;
     m_StreamConfig.fps = m_Preferences->fps;
     m_StreamConfig.bitrate = m_Preferences->bitrateKbps;
 
@@ -677,10 +681,15 @@ bool Session::initialize()
                 CHANNEL_MASK_FROM_AUDIO_CONFIGURATION(m_StreamConfig.audioConfiguration));
 
     // Start with all codecs and profiles in priority order
+    m_SupportedVideoFormats.append(VIDEO_FORMAT_AV1_HIGH10_444);
     m_SupportedVideoFormats.append(VIDEO_FORMAT_AV1_MAIN10);
+    m_SupportedVideoFormats.append(VIDEO_FORMAT_H265_REXT10_444);
     m_SupportedVideoFormats.append(VIDEO_FORMAT_H265_MAIN10);
+    m_SupportedVideoFormats.append(VIDEO_FORMAT_AV1_HIGH8_444);
     m_SupportedVideoFormats.append(VIDEO_FORMAT_AV1_MAIN8);
+    m_SupportedVideoFormats.append(VIDEO_FORMAT_H265_REXT8_444);
     m_SupportedVideoFormats.append(VIDEO_FORMAT_H265);
+    m_SupportedVideoFormats.append(VIDEO_FORMAT_H264_HIGH8_444);
     m_SupportedVideoFormats.append(VIDEO_FORMAT_H264);
 
     // Mask off 10-bit codecs right away if HDR is not enabled
@@ -688,6 +697,11 @@ bool Session::initialize()
         m_SupportedVideoFormats.removeByMask(VIDEO_FORMAT_MASK_10BIT);
     }
 
+    // Mask off YUV 4:4:4 codecs right away if the option is not enabled
+    if (!m_Preferences->enableYUV444) {
+        m_SupportedVideoFormats.removeByMask(VIDEO_FORMAT_MASK_YUV444);
+    }
+
     switch (m_Preferences->videoCodecConfig)
     {
     case StreamingPreferences::VCC_AUTO:
@@ -969,6 +983,37 @@ bool Session::validateLaunch(SDL_Window* testWindow)
         }
     }
 
+    if (m_Preferences->enableYUV444) {
+        if (!(m_Computer->serverCodecModeSupport & SCM_MASK_YUV444)) {
+            emitLaunchWarning(tr("Your host PC doesn't support YUV 4:4:4 streaming."));
+            m_SupportedVideoFormats.removeByMask(VIDEO_FORMAT_MASK_YUV444);
+        }
+        else if (m_Preferences->videoDecoderSelection != StreamingPreferences::VDS_FORCE_SOFTWARE) {
+            m_SupportedVideoFormats.removeByMask(~m_SupportedVideoFormats.maskByServerCodecModes(m_Computer->serverCodecModeSupport));
+
+            if (!m_SupportedVideoFormats.isEmpty() &&
+                !(m_SupportedVideoFormats.front() & VIDEO_FORMAT_MASK_YUV444)) {
+                emitLaunchWarning(tr("Your host PC doesn't support YUV 4:4:4 streaming for selected video codec."));
+            }
+            else {
+                while (!m_SupportedVideoFormats.isEmpty() &&
+                       (m_SupportedVideoFormats.front() & VIDEO_FORMAT_MASK_YUV444) &&
+                       !isHardwareDecodeAvailable(testWindow,
+                                                  m_Preferences->videoDecoderSelection,
+                                                  m_SupportedVideoFormats.front(),
+                                                  m_StreamConfig.width,
+                                                  m_StreamConfig.height,
+                                                  m_StreamConfig.fps)) {
+                    m_SupportedVideoFormats.removeFirst();
+                }
+                if (!m_SupportedVideoFormats.isEmpty() &&
+                    !(m_SupportedVideoFormats.front() & VIDEO_FORMAT_MASK_YUV444)) {
+                    emitLaunchWarning(tr("This PC's GPU doesn't support YUV 4:4:4 decoding for selected video codec."));
+                }
+            }
+        }
+    }
+
     if (m_StreamConfig.width >= 3840) {
         // Only allow 4K on GFE 3.x+
         if (m_Computer->gfeVersion.isEmpty() || m_Computer->gfeVersion.startsWith("2.")) {
diff --git a/app/streaming/session.h b/app/streaming/session.h
index 0abe2a8f..cdba28ca 100644
--- a/app/streaming/session.h
+++ b/app/streaming/session.h
@@ -41,36 +41,33 @@ public:
 
     int maskByServerCodecModes(int serverCodecModes)
     {
-        int val = *this;
+        int mask = 0;
+
+        const QMap<int, int> mapping = {
+            {SCM_H264, VIDEO_FORMAT_H264},
+            {SCM_H264_HIGH8_444, VIDEO_FORMAT_H264_HIGH8_444},
+            {SCM_HEVC, VIDEO_FORMAT_H265},
+            {SCM_HEVC_MAIN10, VIDEO_FORMAT_H265_MAIN10},
+            {SCM_HEVC_REXT8_444, VIDEO_FORMAT_H265_REXT8_444},
+            {SCM_HEVC_REXT10_444, VIDEO_FORMAT_H265_REXT10_444},
+            {SCM_AV1_MAIN8, VIDEO_FORMAT_AV1_MAIN8},
+            {SCM_AV1_MAIN10, VIDEO_FORMAT_AV1_MAIN10},
+            {SCM_AV1_HIGH8_444, VIDEO_FORMAT_AV1_HIGH8_444},
+            {SCM_AV1_HIGH10_444, VIDEO_FORMAT_AV1_HIGH10_444},
+        };
+
+        for (QMap<int, int>::const_iterator it = mapping.cbegin(); it != mapping.cend(); ++it) {
+            if (serverCodecModes & it.key()) {
+                mask |= it.value();
+                serverCodecModes &= ~it.key();
+            }
+        }
 
         // Make sure nobody forgets to update this for new SCM values
-        SDL_assert((serverCodecModes & ~(SCM_MASK_H264 | SCM_MASK_HEVC | SCM_MASK_AV1)) == 0);
+        SDL_assert(serverCodecModes == 0);
 
-        // H.264 SCM masks
-        if (!(serverCodecModes & SCM_H264)) {
-            val &= ~VIDEO_FORMAT_H264;
-        }
-        SDL_assert((serverCodecModes & SCM_MASK_H264 & ~SCM_H264) == 0);
-
-        // HEVC SCM masks
-        if (!(serverCodecModes & SCM_HEVC)) {
-            val &= ~VIDEO_FORMAT_H265;
-        }
-        if (!(serverCodecModes & SCM_HEVC_MAIN10)) {
-            val &= ~VIDEO_FORMAT_H265_MAIN10;
-        }
-        SDL_assert((serverCodecModes & SCM_MASK_HEVC & ~(SCM_HEVC | SCM_HEVC_MAIN10)) == 0);
-
-        // AV1 SCM masks
-        if (!(serverCodecModes & SCM_AV1_MAIN8)) {
-            val &= ~VIDEO_FORMAT_AV1_MAIN8;
-        }
-        if (!(serverCodecModes & SCM_AV1_MAIN10)) {
-            val &= ~VIDEO_FORMAT_AV1_MAIN10;
-        }
-        SDL_assert((serverCodecModes & SCM_MASK_AV1 & ~(SCM_AV1_MAIN8 | SCM_AV1_MAIN10)) == 0);
-
-        return val;
+        int val = *this;
+        return val & mask;
     }
 };
 
diff --git a/app/streaming/video/ffmpeg-renderers/plvk.cpp b/app/streaming/video/ffmpeg-renderers/plvk.cpp
index 0e245d44..479d5eba 100644
--- a/app/streaming/video/ffmpeg-renderers/plvk.cpp
+++ b/app/streaming/video/ffmpeg-renderers/plvk.cpp
@@ -917,9 +917,16 @@ int PlVkRenderer::getRendererAttributes()
     return RENDERER_ATTRIBUTE_HDR_SUPPORT;
 }
 
+int PlVkRenderer::getDecoderColorspace()
+{
+    // We rely on libplacebo for color conversion, pick colorspace with the same primaries as sRGB
+    return COLORSPACE_REC_709;
+}
+
 int PlVkRenderer::getDecoderColorRange()
 {
-    // Explicitly set the color range to full to fix raised black levels on OLED displays
+    // Explicitly set the color range to full to fix raised black levels on OLED displays,
+    // should also reduce banding artifacts in all situations
     return COLOR_RANGE_FULL;
 }
 
@@ -948,6 +955,15 @@ bool PlVkRenderer::isPixelFormatSupported(int videoFormat, AVPixelFormat pixelFo
             // Vulkan frames are always supported
             return true;
         }
+        else if (videoFormat & VIDEO_FORMAT_MASK_YUV444) {
+            if (videoFormat & VIDEO_FORMAT_MASK_10BIT) {
+                return pixelFormat == AV_PIX_FMT_YUV444P10;
+            }
+            else {
+                return pixelFormat == AV_PIX_FMT_YUV444P ||
+                       pixelFormat == AV_PIX_FMT_YUVJ444P;
+            }
+        }
         else if (videoFormat & VIDEO_FORMAT_MASK_10BIT) {
             switch (pixelFormat) {
             case AV_PIX_FMT_P010:
diff --git a/app/streaming/video/ffmpeg-renderers/plvk.h b/app/streaming/video/ffmpeg-renderers/plvk.h
index cc2788d7..00c67bfa 100644
--- a/app/streaming/video/ffmpeg-renderers/plvk.h
+++ b/app/streaming/video/ffmpeg-renderers/plvk.h
@@ -23,6 +23,7 @@ public:
     virtual void notifyOverlayUpdated(Overlay::OverlayType) override;
     virtual bool notifyWindowChanged(PWINDOW_STATE_CHANGE_INFO) override;
     virtual int getRendererAttributes() override;
+    virtual int getDecoderColorspace() override;
     virtual int getDecoderColorRange() override;
     virtual int getDecoderCapabilities() override;
     virtual bool needsTestFrame() override;
diff --git a/app/streaming/video/ffmpeg.cpp b/app/streaming/video/ffmpeg.cpp
index 751d06d4..8f5ff00a 100644
--- a/app/streaming/video/ffmpeg.cpp
+++ b/app/streaming/video/ffmpeg.cpp
@@ -537,6 +537,26 @@ bool FFmpegVideoDecoder::completeInitialization(const AVCodec* decoder, enum AVP
             m_Pkt->data = (uint8_t*)k_AV1Main10TestFrame;
             m_Pkt->size = sizeof(k_AV1Main10TestFrame);
             break;
+        case VIDEO_FORMAT_H264_HIGH8_444:
+            m_Pkt->data = (uint8_t*)k_h264High_444TestFrame;
+            m_Pkt->size = sizeof(k_h264High_444TestFrame);
+            break;
+        case VIDEO_FORMAT_H265_REXT8_444:
+            m_Pkt->data = (uint8_t*)k_HEVCRExt8_444TestFrame;
+            m_Pkt->size = sizeof(k_HEVCRExt8_444TestFrame);
+            break;
+        case VIDEO_FORMAT_H265_REXT10_444:
+            m_Pkt->data = (uint8_t*)k_HEVCRExt10_444TestFrame;
+            m_Pkt->size = sizeof(k_HEVCRExt10_444TestFrame);
+            break;
+        case VIDEO_FORMAT_AV1_HIGH8_444:
+            m_Pkt->data = (uint8_t*)k_AV1High8_444TestFrame;
+            m_Pkt->size = sizeof(k_AV1High8_444TestFrame);
+            break;
+        case VIDEO_FORMAT_AV1_HIGH10_444:
+            m_Pkt->data = (uint8_t*)k_AV1High10_444TestFrame;
+            m_Pkt->size = sizeof(k_AV1High10_444TestFrame);
+            break;
         default:
             SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                          "No test frame for format: %x",
@@ -692,16 +712,33 @@ void FFmpegVideoDecoder::stringifyVideoStats(VIDEO_STATS& stats, char* output, i
         codecString = "H.264";
         break;
 
+    case VIDEO_FORMAT_H264_HIGH8_444:
+        codecString = "H.264 4:4:4";
+        break;
+
     case VIDEO_FORMAT_H265:
         codecString = "HEVC";
         break;
 
+    case VIDEO_FORMAT_H265_REXT8_444:
+        codecString = "HEVC 4:4:4";
+        break;
+
     case VIDEO_FORMAT_H265_MAIN10:
         if (LiGetCurrentHostDisplayHdrMode()) {
-            codecString = "HEVC Main 10 HDR";
+            codecString = "HEVC 10-bit HDR";
         }
         else {
-            codecString = "HEVC Main 10 SDR";
+            codecString = "HEVC 10-bit SDR";
+        }
+        break;
+
+    case VIDEO_FORMAT_H265_REXT10_444:
+        if (LiGetCurrentHostDisplayHdrMode()) {
+            codecString = "HEVC 10-bit HDR 4:4:4";
+        }
+        else {
+            codecString = "HEVC 10-bit SDR 4:4:4";
         }
         break;
 
@@ -709,6 +746,10 @@ void FFmpegVideoDecoder::stringifyVideoStats(VIDEO_STATS& stats, char* output, i
         codecString = "AV1";
         break;
 
+    case VIDEO_FORMAT_AV1_HIGH8_444:
+        codecString = "AV1 4:4:4";
+        break;
+
     case VIDEO_FORMAT_AV1_MAIN10:
         if (LiGetCurrentHostDisplayHdrMode()) {
             codecString = "AV1 10-bit HDR";
@@ -718,6 +759,15 @@ void FFmpegVideoDecoder::stringifyVideoStats(VIDEO_STATS& stats, char* output, i
         }
         break;
 
+    case VIDEO_FORMAT_AV1_HIGH10_444:
+        if (LiGetCurrentHostDisplayHdrMode()) {
+            codecString = "AV1 10-bit HDR 4:4:4";
+        }
+        else {
+            codecString = "AV1 10-bit SDR 4:4:4";
+        }
+        break;
+
     default:
         SDL_assert(false);
         codecString = "UNKNOWN";
@@ -1254,6 +1304,12 @@ bool FFmpegVideoDecoder::tryInitializeHwAccelDecoder(PDECODER_PARAMETERS params,
                 break;
             }
 
+            // TODO: reexamine this
+            if ((params->videoFormat & VIDEO_FORMAT_MASK_YUV444) && config->device_type != AV_HWDEVICE_TYPE_VULKAN) {
+                // We only support YUV 4:4:4 decoding on Vulkan through libplacebo
+                continue;
+            }
+
             // Initialize the hardware codec and submit a test frame if the renderer needs it
             IFFmpegRenderer::InitFailureReason failureReason;
             if (tryInitializeRenderer(decoder, AV_PIX_FMT_NONE, params, config, &failureReason,
diff --git a/app/streaming/video/ffmpeg.h b/app/streaming/video/ffmpeg.h
index 2dd387fa..7dbcd503 100644
--- a/app/streaming/video/ffmpeg.h
+++ b/app/streaming/video/ffmpeg.h
@@ -119,4 +119,10 @@ private:
     static const uint8_t k_HEVCMain10TestFrame[];
     static const uint8_t k_AV1Main8TestFrame[];
     static const uint8_t k_AV1Main10TestFrame[];
+    static const uint8_t k_h264High_444TestFrame[];
+    static const uint8_t k_HEVCRExt8_444TestFrame[];
+    static const uint8_t k_HEVCRExt10_444TestFrame[];
+    static const uint8_t k_AV1High8_444TestFrame[];
+    static const uint8_t k_AV1High10_444TestFrame[];
+
 };
diff --git a/app/streaming/video/ffmpeg_videosamples.cpp b/app/streaming/video/ffmpeg_videosamples.cpp
index 66f0f8c1..d2552396 100644
--- a/app/streaming/video/ffmpeg_videosamples.cpp
+++ b/app/streaming/video/ffmpeg_videosamples.cpp
@@ -41,3 +41,130 @@ const uint8_t FFmpegVideoDecoder::k_AV1Main8TestFrame[] = {
 const uint8_t FFmpegVideoDecoder::k_AV1Main10TestFrame[] = {
     0x12, 0x00, 0x0A, 0x10, 0x00, 0x00, 0x00, 0x43, 0xFC, 0x13, 0xFC, 0x0B, 0x3C, 0x02, 0x4E, 0xA8, 0x30, 0x30, 0x30, 0xA0, 0x32, 0x8B, 0x81, 0x80, 0x00, 0x10, 0x00, 0x4B, 0x00, 0x10, 0xC2, 0xFB, 0xE1, 0x52, 0x49, 0xFF, 0xE0, 0x00, 0x28, 0xB8, 0xB4, 0x5D, 0x8F, 0xF0, 0x01, 0x33, 0xAC, 0x5D, 0xD3, 0xCB, 0xF0, 0xFB, 0x2F, 0x59, 0xE9, 0xBF, 0x5B, 0x6E, 0x2C, 0x7A, 0x2B, 0xD1, 0xC5, 0x45, 0x24, 0x93, 0xC7, 0x92, 0x89, 0x89, 0x4E, 0x6F, 0x04, 0x58, 0x09, 0xD1, 0x70, 0x67, 0xE9, 0xB6, 0x09, 0x1A, 0x35, 0xB6, 0x37, 0x4E, 0x7D, 0x61, 0xC3, 0xF5, 0xBD, 0x48, 0xA4, 0x23, 0x60, 0x59, 0xA2, 0xA0, 0x21, 0xDA, 0x20, 0x92, 0xDB, 0xB9, 0x31, 0x43, 0xFB, 0x85, 0xD9, 0x3B, 0x4F, 0xF3, 0x96, 0x05, 0x0A, 0x98, 0x6E, 0xCE, 0xC5, 0x3F, 0xCD, 0x18, 0x6D, 0x2C, 0x17, 0x49, 0x68, 0xC3, 0x4A, 0xC0, 0xF5, 0x58, 0x0C, 0xA4, 0xDE, 0xF6, 0x4A, 0x11, 0x24, 0xC2, 0xE0, 0x24, 0xB7, 0x00, 0xCB, 0x71, 0x96, 0xDA, 0x35, 0xFD, 0xBA, 0x3F, 0xD9, 0xB7, 0x58, 0xF2, 0x28, 0x14, 0x2D, 0xB0, 0xE9, 0xE3, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
+
+// 720p H.264 High 4:4:4
+// ffmpeg -i green128.png -pix_fmt yuv444p -colorspace smpte170m -color_trc smpte170m -color_primaries smpte170m -c:v libx264 -bsf:v filter_units=remove_types=6 test8_444.h264
+// xxd -i test8_444.h264
+const uint8_t FFmpegVideoDecoder::k_h264High_444TestFrame[] = {
+  0x00, 0x00, 0x00, 0x01, 0x67, 0xf4, 0x00, 0x1f, 0x91, 0x9b, 0x28, 0x0a,
+  0x00, 0xb7, 0x60, 0x2d, 0x41, 0x81, 0x81, 0x90, 0x00, 0x00, 0x03, 0x00,
+  0x10, 0x00, 0x00, 0x03, 0x03, 0x20, 0xf1, 0x83, 0x19, 0x60, 0x00, 0x00,
+  0x00, 0x01, 0x68, 0xeb, 0xe3, 0xc4, 0x48, 0x44, 0x00, 0x00, 0x01, 0x65,
+  0x88, 0x84, 0x00, 0x2b, 0xff, 0xfe, 0xf5, 0xdb, 0xf3, 0x2c, 0x93, 0x97,
+  0x37, 0xc0, 0xa5, 0x7d, 0x51, 0xf0, 0x29, 0x74, 0xec, 0x3f, 0xff, 0x07,
+  0xb6, 0x53, 0xd1, 0x9d, 0x16, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x59, 0x20, 0x00, 0x00, 0x03, 0x00, 0x69, 0xa0, 0x00,
+  0x09, 0x84, 0x00, 0x01, 0x59, 0x80, 0x00, 0x44, 0xe0, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x0b, 0x29,
+};
+
+// 720p HEVC RExt8 4:4:4
+// ffmpeg -i green128.png -pix_fmt yuv444p -colorspace smpte170m -color_trc smpte170m -color_primaries smpte170m -c:v libx265 -x265-params info=0 test8_444.hevc
+// xxd -i test8_444.hevc
+const uint8_t FFmpegVideoDecoder::k_HEVCRExt8_444TestFrame[] = {
+  0x00, 0x00, 0x00, 0x01, 0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x04, 0x08,
+  0x00, 0x00, 0x03, 0x00, 0x9e, 0x08, 0x00, 0x00, 0x03, 0x00, 0x00, 0x5d,
+  0x95, 0x98, 0x09, 0x00, 0x00, 0x00, 0x01, 0x42, 0x01, 0x01, 0x04, 0x08,
+  0x00, 0x00, 0x03, 0x00, 0x9e, 0x08, 0x00, 0x00, 0x03, 0x00, 0x00, 0x5d,
+  0x90, 0x00, 0x50, 0x10, 0x05, 0xa2, 0xcb, 0x2b, 0x34, 0x92, 0x65, 0x78,
+  0x0b, 0x50, 0x60, 0x60, 0x60, 0x40, 0x00, 0x00, 0x03, 0x00, 0x40, 0x00,
+  0x00, 0x06, 0x42, 0x00, 0x00, 0x00, 0x01, 0x44, 0x01, 0xc1, 0x72, 0x86,
+  0x0c, 0x46, 0x24, 0x00, 0x00, 0x01, 0x28, 0x01, 0xaf, 0x1d, 0x18, 0x69,
+  0x57, 0x59, 0x55, 0x54, 0x51, 0x34, 0xd2, 0x4a, 0xf7, 0xcf, 0x80, 0xff,
+  0xf1, 0xcc, 0x1f, 0xc9, 0x84, 0x7d, 0xf8, 0xb6, 0xba, 0xfa, 0xcd, 0x61,
+  0xb5, 0xe3, 0xc1, 0x02, 0x19, 0x26, 0x30, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x04, 0xf4, 0xa8, 0x17,
+  0x96, 0x03, 0x4c, 0x4e, 0x1a, 0x80, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x09, 0xf8, 0x93, 0x0b,
+  0x93, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x48, 0xc0, 0x87, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x01, 0xa3, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0xb5, 0x80, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x0b, 0xd8, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x51, 0xc0, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x01, 0x39, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x02, 0xca, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x04, 0x74, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x07, 0x6c, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x27, 0xa0,
+};
+
+// 720p HEVC RExt10 4:4:4
+// ffmpeg -i green128.png -pix_fmt yuv444p10 -colorspace bt2020nc -color_trc smpte2084 -color_primaries bt2020 -c:v libx265 -x265-params info=0 test10_444.hevc
+// xxd -i test10_444.hevc
+const uint8_t FFmpegVideoDecoder::k_HEVCRExt10_444TestFrame[] = {
+  0x00, 0x00, 0x00, 0x01, 0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x04, 0x08,
+  0x00, 0x00, 0x03, 0x00, 0x9c, 0x08, 0x00, 0x00, 0x03, 0x00, 0x00, 0x5d,
+  0x95, 0x98, 0x09, 0x00, 0x00, 0x00, 0x01, 0x42, 0x01, 0x01, 0x04, 0x08,
+  0x00, 0x00, 0x03, 0x00, 0x9c, 0x08, 0x00, 0x00, 0x03, 0x00, 0x00, 0x5d,
+  0x90, 0x00, 0x50, 0x10, 0x05, 0xa2, 0x6c, 0xb2, 0xb3, 0x49, 0x26, 0x57,
+  0x80, 0xb5, 0x09, 0x10, 0x09, 0x04, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00,
+  0x00, 0x03, 0x00, 0x64, 0x20, 0x00, 0x00, 0x00, 0x01, 0x44, 0x01, 0xc1,
+  0x72, 0x86, 0x0c, 0x46, 0x24, 0x00, 0x00, 0x01, 0x28, 0x01, 0xaf, 0x1d,
+  0x18, 0x69, 0x57, 0x59, 0x55, 0x54, 0x51, 0x34, 0xd2, 0x4a, 0xf7, 0xcf,
+  0x80, 0xff, 0xf1, 0xef, 0x9f, 0xc9, 0x84, 0x7d, 0xf8, 0xb6, 0xba, 0xfa,
+  0xcd, 0x61, 0xb5, 0xe3, 0xc1, 0x02, 0x19, 0x26, 0x30, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x04, 0xf4,
+  0xa8, 0x17, 0x96, 0x03, 0x4c, 0x4e, 0x1a, 0x80, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x09, 0xf8,
+  0x93, 0x0b, 0x93, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x48, 0xc0, 0x87,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x01, 0xa3, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0xb5, 0x80, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x0b, 0xd8, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x51,
+  0xc0, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x01, 0x39, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x02, 0xca, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x04, 0x74,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x07, 0x6c, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00,
+  0x27, 0xa0,
+};
+
+// 720p AV1 High8 4:4:4
+// ffmpeg -i green128.png -pix_fmt yuv444p -colorspace smpte170m -color_trc smpte170m -color_primaries smpte170m -c:v libaom-av1 test8_444.obu
+// xxd -i test8_444.obu
+const uint8_t FFmpegVideoDecoder::k_AV1High8_444TestFrame[] = {
+  0x12, 0x00, 0x0a, 0x0e, 0x20, 0x00, 0x00, 0x2d, 0x4c, 0xff, 0xb3, 0xdf,
+  0xff, 0x9a, 0x0c, 0x0c, 0x0c, 0x20, 0x32, 0x25, 0x10, 0x00, 0x90, 0x00,
+  0x00, 0x00, 0xa0, 0x00, 0x00, 0x80, 0x0c, 0x80, 0xad, 0xfd, 0xdb, 0x2e,
+  0x81, 0x37, 0x40, 0xfd, 0x19, 0x97, 0xdc, 0x15, 0x72, 0x1d, 0xe0, 0xff,
+  0x00, 0x35, 0x9d, 0x2c, 0x10, 0x7d, 0x17, 0x58, 0x60,
+};
+
+// 720p AV1 High10 4:4:4
+// ffmpeg -i green128.png -pix_fmt yuv444p10 -colorspace bt2020nc -color_trc smpte2084 -color_primaries bt2020 -c:v libaom-av1 test10_444.obu
+// xxd -i test10_444.obu
+const uint8_t FFmpegVideoDecoder::k_AV1High10_444TestFrame[] = {
+  0x12, 0x00, 0x0a, 0x0e, 0x20, 0x00, 0x00, 0x2d, 0x4c, 0xff, 0xb3, 0xdf,
+  0xff, 0x9e, 0x12, 0x20, 0x12, 0x20, 0x32, 0x25, 0x10, 0x00, 0x90, 0x00,
+  0x00, 0x00, 0xa0, 0x00, 0x00, 0x80, 0x0c, 0x80, 0xad, 0xfe, 0x04, 0x70,
+  0x81, 0x37, 0x40, 0xfd, 0x19, 0x97, 0xdc, 0x15, 0x72, 0x1d, 0xe0, 0xff,
+  0x00, 0x35, 0x9d, 0x2c, 0x10, 0x7d, 0x17, 0x58, 0x60,
+};
diff --git a/moonlight-common-c/moonlight-common-c b/moonlight-common-c/moonlight-common-c
index c245fe59..8599b604 160000
--- a/moonlight-common-c/moonlight-common-c
+++ b/moonlight-common-c/moonlight-common-c
@@ -1 +1 @@
-Subproject commit c245fe599d932943a50125b903ee325aac2d0d8a
+Subproject commit 8599b6042a4ba27749b0f94134dd614b4328a9bc