{"id":114532,"date":"2026-10-09T13:01:04","date_gmt":"2026-10-09T05:01:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/114532.html"},"modified":"2026-10-09T13:01:04","modified_gmt":"2026-10-09T05:01:04","slug":"rk3528-rgadrm%e6%a1%86%e6%9e%b6-hdmi-out%e8%a7%86%e9%a2%91%e8%be%93%e5%87%ba%ef%bc%9a%e4%bb%8e%e5%a4%9a%e5%9b%be%e5%b1%82%e5%90%88%e6%88%90%e5%88%b0%e6%98%be%e7%a4%ba%e9%80%81%e6%98%be","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/114532.html","title":{"rendered":"RK3528 RGA+DRM\u6846\u67b6 HDMI out\u89c6\u9891\u8f93\u51fa\uff1a\u4ece\u591a\u56fe\u5c42\u5408\u6210\u5230\u663e\u793a\u9001\u663e"},"content":{"rendered":"<h2>RK3528 RGA\u786c\u4ef6\u52a0\u901f&#xff1a;\u591a\u5206\u8fa8\u7387\u8f93\u5165\u6e90\u5207\u6362\u4e0e\u5c3a\u5bf8\u81ea\u9002\u5e94\u5b8c\u5168\u89e3\u6790<\/h2>\n<p>\u6807\u7b7e&#xff1a;RK3528 DRM \u786c\u4ef6\u7f29\u653e \u5c3a\u5bf8\u9002\u914d RGA HDMI\u8f93\u51fa MEDAI V2<\/p>\n<h3>\u76ee\u5f55<\/h3>\n<ul>\n<li>\u4e00\u3001\u4e3a\u4ec0\u4e48\u9700\u8981 DRM&#xff1a;\u4ece FBDEV \u5230\u73b0\u4ee3\u663e\u793a\u6846\u67b6<\/li>\n<li>\u4e8c\u3001DRM \u6846\u67b6\u6838\u5fc3\u6280\u672f\n<ul>\n<li>2.1 DRM \u662f\u4ec0\u4e48&#xff1a;\u5185\u6838\u663e\u793a\u5b50\u7cfb\u7edf<\/li>\n<li>2.2 KMS \u4e94\u5927\u5bf9\u8c61&#xff1a;\u663e\u793a\u6d41\u6c34\u7ebf<\/li>\n<li>2.3 GEM \u4e0e\u663e\u5b58\u7ba1\u7406&#xff1a;dumb buffer \/ PRIME<\/li>\n<li>2.4 libdrm \u4e0e\u4e00\u6b21\u6807\u51c6\u9001\u663e\u6d41\u7a0b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001RK3528 \u663e\u793a\u786c\u4ef6&#xff1a;VOP2 &#043; HDMI 2.0<\/li>\n<li>\u56db\u3001RGA &#043; DRM \u534f\u540c&#xff1a;\u4ece\u591a\u56fe\u5c42\u5408\u6210\u5230 HDMI \u9001\u663e\n<ul>\n<li>4.1 \u4e3a\u4ec0\u4e48\u662f RGA \u5148\u5408\u6210\u3001DRM \u540e\u9001\u663e<\/li>\n<li>4.2 \u5b8c\u6574\u6d41\u6c34\u7ebf\u62c6\u89e3<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u8bbe\u5907\u5b9e\u6218&#xff1a;\u7ed3\u5408 MEDAI V2 \u4f7f\u7528\u8bf4\u660e\u4e66\n<ul>\n<li>5.1 \u89c6\u9891\u8f93\u51fa\u6e90\u9009\u62e9&#xff08;\u51b3\u5b9a\u9001\u663e\u4e3b\u753b\u9762&#xff09;<\/li>\n<li>5.2 \u955c\u50cf \/ \u65cb\u8f6c&#xff08;\u7f16\u7801\u53c2\u6570\u540c\u6b65\u5230\u663e\u793a\u5e27&#xff09;<\/li>\n<li>5.3 \u89c6\u9891\u53e0\u52a0 Mode 1&#xff5e;5&#xff08;RGA \u591a\u56fe\u5c42\u5408\u6210&#xff09;<\/li>\n<li>5.4 \u7eff\u5e55\u62a0\u56fe\u4e0e LOGO \u53e0\u52a0&#xff08;RGBA \/ \u8272\u952e\u5408\u6210&#xff09;<\/li>\n<li>5.5 \u7cfb\u7edf\u72b6\u6001\u9a8c\u8bc1 HDMI \u8f93\u51fa\u63a5\u5165<\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u56fe\u5c42\u4e0e\u6a21\u5f0f\u901f\u67e5\u8868<\/li>\n<li>\u4e03\u3001\u6392\u969c\u901f\u67e5\u8868<\/li>\n<li>\u516b\u3001\u8981\u70b9\u56de\u987e<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e00\u3001\u4e3a\u4ec0\u4e48\u9700\u8981 DRM&#xff1a;\u4ece FBDEV \u5230\u73b0\u4ee3\u663e\u793a\u6846\u67b6<\/h3>\n<p>\u65e9\u671f\u5d4c\u5165\u5f0f Linux \u7528 FBDEV&#xff08;Framebuffer Device&#xff09; \u663e\u793a&#xff1a;\u5e94\u7528\u76f4\u63a5\u5199\u4e00\u6bb5\u663e\u5b58&#xff0c;\u9a71\u52a8\u53ea\u8d1f\u8d23\u628a\u8fd9\u6bb5\u5185\u5b58\u5237\u5230\u5c4f\u5e55\u3002\u5b83\u7b80\u5355&#xff0c;\u4f46\u53ea\u80fd\u5e94\u4ed8&#034;\u5355\u5c42\u3001\u56fa\u5b9a\u5206\u8fa8\u7387\u3001\u65e0\u786c\u4ef6\u52a0\u901f&#034;\u7684\u573a\u666f\u2014\u2014\u4e00\u65e6\u8981\u53e0 LOGO\u3001\u753b\u4e2d\u753b\u3001\u7eff\u5e55\u5408\u6210\u3001\u591a\u8f93\u5165\u6e90\u9884\u89c8&#xff0c;FBDEV \u5c31\u65e0\u80fd\u4e3a\u529b\u4e86\u3002<\/p>\n<p>DRM&#xff08;Direct Rendering Manager&#xff0c;\u76f4\u63a5\u6e32\u67d3\u7ba1\u7406\u5668&#xff09; \u662f Linux \u5185\u6838\u4e2d\u63a5\u7ba1\u56fe\u5f62\u663e\u793a\u4e0e GPU \u52a0\u901f\u7684\u5b50\u7cfb\u7edf&#xff0c;\u81ea Kernel 4.4 \u8d77\u6210\u4e3a Rockchip \u5e73\u53f0\u7684\u6807\u51c6\u663e\u793a\u6846\u67b6&#xff08;MEDAI V2 \u7684 RK3528 \u5373\u91c7\u7528\u6b64\u6846\u67b6&#xff09;\u3002\u5b83\u628a&#034;\u663e\u793a\u6a21\u5f0f\u8bbe\u7f6e\u3001\u663e\u5b58\u5206\u914d\u3001\u56fe\u5c42\u5408\u6210\u3001\u65f6\u5e8f\u626b\u63cf&#034;\u7edf\u4e00\u62bd\u8c61\u6210\u4e00\u5957\u5bf9\u8c61\u6a21\u578b&#xff0c;\u8ba9\u5e94\u7528\u5c42&#xff08;\u901a\u8fc7 libdrm&#xff09;\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u6bcf\u4e00\u5e27\u5982\u4f55\u88ab\u5408\u6210\u3001\u4f55\u65f6\u88ab\u7ffb\u9875\u3001\u9001\u5230\u54ea\u4e2a\u7269\u7406\u63a5\u53e3\u3002<\/p>\n<p>&#x1f4a1; \u4e00\u53e5\u8bdd\u7406\u89e3&#xff1a;FBDEV \u50cf&#034;\u76f4\u63a5\u5f80\u5c4f\u5e55\u4e0a\u7cca\u4e00\u5f20\u56fe&#034;&#xff1b;DRM \u50cf&#034;\u5bfc\u6f14\u8c03\u5ea6\u591a\u4e2a\u56fe\u5c42\u3001\u5728\u5782\u76f4\u6d88\u9690\u671f\u7cbe\u51c6\u6362\u5e27\u3001\u518d\u9001\u5230\u6307\u5b9a\u63a5\u53e3&#034;\u3002MEDAI V2 \u7684 HDMI \u672c\u5730\u753b\u9762\u8f93\u51fa&#xff0c;\u6b63\u662f\u5efa\u7acb\u5728 DRM \u8fd9\u5957\u8c03\u5ea6\u4e4b\u4e0a\u3002<\/p>\n<hr \/>\n<h3>\u4e8c\u3001DRM \u6846\u67b6\u6838\u5fc3\u6280\u672f<\/h3>\n<h4>2.1 DRM \u662f\u4ec0\u4e48&#xff1a;\u5185\u6838\u663e\u793a\u5b50\u7cfb\u7edf<\/h4>\n<p>DRM \u5206\u4e3a\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u4e24\u90e8\u5206&#xff0c;\u901a\u8fc7 libdrm \u5e93\u5c01\u88c5 ioctl \u4ea4\u4e92&#xff1a;<\/p>\n<ul>\n<li>\u7528\u6237\u7a7a\u95f4&#xff1a;libdrm \u628a DRM \u7684 IOCTL \u5c01\u88c5\u6210\u53cb\u597d API&#xff0c;\u4f9b Wayland \u5408\u6210\u5668\u3001Qt EGLFS\u3001SDL \u4ee5\u53ca\u672c\u8bbe\u5907\u7684\u9884\u89c8\/\u9001\u663e\u7a0b\u5e8f\u8c03\u7528\u3002<\/li>\n<li>\u5185\u6838\u7a7a\u95f4&#xff1a;DRM \u6838\u5fc3&#xff08;\u901a\u7528\u903b\u8f91&#xff09;&#043; DRM \u9a71\u52a8&#xff08;Rockchip \u786c\u4ef6\u9002\u914d\u5c42&#xff0c;drivers\/gpu\/drm\/rockchip\/&#xff09;\u3002<\/li>\n<li>\u8bbe\u5907\u8282\u70b9&#xff1a;\/dev\/dri\/cardX&#xff08;X \u4e3a 0&#xff5e;15&#xff0c;\u9ed8\u8ba4 card0&#xff09;\u3002\u6253\u5f00\u8be5\u8282\u70b9\u5373\u53ef\u679a\u4e3e\u663e\u793a\u8d44\u6e90\u3001\u5206\u914d\u7f13\u51b2\u533a\u3001\u63d0\u4ea4\u663e\u793a\u72b6\u6001\u3002<\/li>\n<\/ul>\n<p>DRM \u7684\u4e24\u5927\u652f\u67f1\u662f KMS&#xff08;Kernel Mode Setting&#xff0c;\u5185\u6838\u663e\u793a\u6a21\u5f0f\u8bbe\u7f6e&#xff09; \u4e0e GEM&#xff08;Graphics Execution Manager&#xff0c;\u56fe\u5f62\u6267\u884c\u7ba1\u7406\u5668&#xff09;&#xff0c;\u5916\u52a0 PRIME&#xff08;\u8de8\u8bbe\u5907\u7f13\u51b2\u5171\u4eab&#xff09;\u3002<\/p>\n<h4>2.2 KMS \u4e94\u5927\u5bf9\u8c61&#xff1a;\u663e\u793a\u6d41\u6c34\u7ebf<\/h4>\n<p>KMS \u628a\u4e00\u6761&#034;\u56fe\u50cf \u2192 \u5c4f\u5e55&#034;\u7684\u663e\u793a\u6d41\u6c34\u7ebf\u62bd\u8c61\u4e3a\u4e94\u4e2a\u5bf9\u8c61&#xff0c;\u987a\u5e8f\u5982\u4e0b&#xff1a;<\/p>\n<p>Framebuffer \u2192 Plane \u2192 CRTC \u2192 Encoder \u2192 (Bridge) \u2192 Connector \u2192 Panel(\u5c4f\u5e55)<\/p>\n<table>\n<tr>\u5bf9\u8c61\u89d2\u8272\u5728 Rockchip \/ RK3528 \u4e0a\u7684\u5bf9\u5e94<\/tr>\n<tbody>\n<tr>\n<td>Framebuffer (FB)<\/td>\n<td>\u63cf\u8ff0\u663e\u5b58\u4e2d\u4e00\u5e45\u56fe\u50cf\u7684\u5e03\u5c40&#xff08;\u5bbd\u9ad8\u3001FourCC \u50cf\u7d20\u683c\u5f0f\u3001pitch\u3001offset&#xff09;&#xff0c;\u4e0e\u786c\u4ef6\u65e0\u5173<\/td>\n<td>\u4e00\u5e45\u5408\u6210\u597d\u7684 NV12 \/ RGB \u5e27<\/td>\n<\/tr>\n<tr>\n<td>Plane&#xff08;\u56fe\u5c42&#xff09;<\/td>\n<td>\u786c\u4ef6\u56fe\u5c42&#xff0c;\u652f\u6301\u591a\u5c42\u53e0\u52a0\u3002\u7c7b\u578b&#xff1a;Primary&#xff08;\u4e3b\u56fe\u5c42&#xff09;\u3001Overlay&#xff08;\u89c6\u9891\/OSD\/\u6444\u50cf\u9884\u89c8\u5c42&#xff09;\u3001Cursor&#xff08;\u5149\u6807\u5c42&#xff09;<\/td>\n<td>VOP2 \u7684 Cluster \/ Esmart \/ Overlay \u7a97\u53e3<\/td>\n<\/tr>\n<tr>\n<td>CRTC<\/td>\n<td>\u626b\u63cf\u8f93\u51fa\u6d41\u6c34\u7ebf&#xff0c;\u4fdd\u5b58\u663e\u793a\u65f6\u5e8f&#xff08;drm_display_mode&#xff09;&#xff0c;\u5408\u5e76\u5404 Plane&#xff0c;\u4ea7\u751f VBLANK&#xff0c;\u8fde\u63a5\u50cf\u7d20\u6d41\u5230 Encoder<\/td>\n<td>RK3528 \u7684 Video Port&#xff08;VP0 \/ VP1&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>Encoder<\/td>\n<td>\u628a CRTC \u50cf\u7d20\u6d41\u8f6c\u6362\u6210\u663e\u793a\u63a5\u53e3\u683c\u5f0f&#xff08;HDMI \/ DP \/ DSI \/ LVDS \u7b49&#xff09;<\/td>\n<td>HDMI TX \u63a7\u5236\u5668\u524d\u7684\u683c\u5f0f\u8f6c\u6362<\/td>\n<\/tr>\n<tr>\n<td>Connector<\/td>\n<td>\u7269\u7406\u663e\u793a\u63a5\u53e3&#xff0c;\u8bfb\u53d6 EDID\u3001\u68c0\u6d4b\u70ed\u63d2\u62d4\u3001\u4e0a\u62a5\u8fde\u63a5\u72b6\u6001<\/td>\n<td>HDMI 2.0 \u63a5\u53e3&#xff08;\u542b HPD \u70ed\u63d2\u62d4\u68c0\u6d4b&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Plane \u7684\u5173\u952e\u5c5e\u6027&#xff08;\u51b3\u5b9a\u80fd\u5426\u505a\u7279\u6548&#xff09;&#xff1a;<\/p>\n<ul>\n<li>FB_ID \/ CRTC_ID&#xff1a;\u7ed1\u5b9a\u54ea\u4e2a\u5e27\u7f13\u51b2\u3001\u9001\u7ed9\u54ea\u4e2a CRTC&#xff1b;<\/li>\n<li>SRC_X\/Y\/W\/H&#xff1a;\u6e90\u533a\u57df&#xff0c;\u4f7f\u7528 16.16 \u5b9a\u70b9\u5750\u6807&#xff1b;CRTC_X\/Y\/W\/H&#xff1a;\u76ee\u6807\u663e\u793a\u533a\u57df&#xff08;\u6574\u6570\u50cf\u7d20&#xff09;&#xff1b;<\/li>\n<li>\u5f53\u6e90\u5c3a\u5bf8 \u2260 \u76ee\u6807\u5c3a\u5bf8\u65f6&#xff0c;VOP \u81ea\u52a8\u505a\u7f29\u653e&#xff1b;<\/li>\n<li>alpha&#xff08;\u900f\u660e\u5ea6&#xff09;\u3001zpos&#xff08;\u56fe\u5c42 Z \u5e8f&#xff09;\u3001rotation&#xff08;0\/90\/180\/270&#xff09;\u3001pixel blend mode&#xff08;\u6df7\u5408\u6a21\u5f0f&#xff09;\u3001COLOR_ENCODING \/ COLOR_RANGE\u3001IN_FENCE_FD&#xff08;\u540c\u6b65\u6805\u680f&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u26a0\ufe0f \u6ce8\u610f&#xff1a;\u4e00\u4e2a\u53ef\u89c1 Plane \u5fc5\u987b\u6ee1\u8db3\u2014\u2014\u6709\u6548\u7684 Framebuffer\u3001\u517c\u5bb9\u7684 CRTC\u3001\u53d7\u652f\u6301\u7684\u50cf\u7d20\u683c\u5f0f\u3001\u5408\u6cd5\u7684\u7f29\u653e\u6bd4\u3001\u53ef\u89c1\u7684\u76ee\u6807\u77e9\u5f62\u3001\u5408\u9002\u7684 alpha \u4e0e Z \u5e8f\u3001\u8db3\u591f\u7684\u5e26\u5bbd&#xff0c;\u5426\u5219\u8be5\u56fe\u5c42\u4e0d\u4f1a\u663e\u793a&#xff08;\u9ed1\u5c4f\/\u82b1\u5c4f\u7684\u5e38\u89c1\u6839\u56e0&#xff09;\u3002<\/p>\n<h4>2.3 GEM \u4e0e\u663e\u5b58\u7ba1\u7406&#xff1a;dumb buffer \/ PRIME<\/h4>\n<p>GEM \u8d1f\u8d23\u663e\u5b58\u7684\u5206\u914d\u3001\u6620\u5c04\u4e0e\u751f\u547d\u5468\u671f&#xff0c;\u5e76\u89e3\u51b3 GPU\/CPU\/\u89c6\u9891\u89e3\u7801\u5668\u4e4b\u95f4\u7684\u540c\u6b65&#xff1a;<\/p>\n<ul>\n<li>Dumb Buffer&#xff1a;\u57fa\u4e8e CMA&#xff08;\u8fde\u7eed\u7269\u7406\u5185\u5b58&#xff09;\u5b9e\u73b0&#xff0c;\u4ec5\u652f\u6301\u8fde\u7eed\u7269\u7406\u5185\u5b58&#xff0c;\u9002\u5408\u4f4e\u5206\u8fa8\u7387\u7b80\u5355\u573a\u666f\u3002\u901a\u8fc7 drmModeCreateDumb() \u521b\u5efa&#xff0c;\u518d\u7528 drmModeAddFB2() \u5173\u8054\u6210 Framebuffer\u3002<\/li>\n<li>PRIME Buffer&#xff1a;\u57fa\u4e8e DMA-BUF \u7684\u8de8\u8bbe\u5907\u7f13\u51b2\u5171\u4eab\u673a\u5236&#xff0c;\u652f\u6301\u8fde\u7eed\/\u975e\u8fde\u7eed\u7269\u7406\u5185\u5b58&#xff0c;\u7528\u4e8e GPU\u3001VPU&#xff08;MPP \u89e3\u7801&#xff09;\u3001RGA \u4e4b\u95f4\u96f6\u62f7\u8d1d\u4f20\u9012\u5e27\u6570\u636e\u3002<\/li>\n<li>Fence&#xff08;dma_fence&#xff09;&#xff1a;\u4fdd\u8bc1 GPU \u5199\u5165\u4e0e DRM \u626b\u63cf\u4e4b\u95f4\u7684\u5148\u540e\u987a\u5e8f&#xff0c;\u907f\u514d\u6570\u636e\u7ade\u4e89\u4e0e\u6495\u88c2\u3002<\/li>\n<\/ul>\n<h4>2.4 libdrm \u4e0e\u4e00\u6b21\u6807\u51c6\u9001\u663e\u6d41\u7a0b<\/h4>\n<p>\u4e00\u6b21&#034;\u628a\u4e00\u5e45\u56fe\u9001\u5230 HDMI&#034;\u7684\u6807\u51c6\u6d41\u7a0b&#xff1a;<\/p>\n<li>\u521d\u59cb\u5316&#xff1a;\u9a71\u52a8 drm_dev_register() \u6ce8\u518c\u8bbe\u5907&#xff0c;KMS \u521d\u59cb\u5316 CRTC \/ Encoder \/ Connector&#xff1b;<\/li>\n<li>\u6a21\u5f0f\u8bbe\u7f6e&#xff1a;\u7528\u6237\u7a7a\u95f4\u7528 drmModeSetCrtc()&#xff08;\u6216\u539f\u5b50\u63a5\u53e3 drm_atomic_commit()&#xff09;\u914d\u7f6e\u5206\u8fa8\u7387\u3001\u5237\u65b0\u7387&#xff0c;KMS \u66f4\u65b0\u786c\u4ef6\u65f6\u5e8f&#xff1b;<\/li>\n<li>\u663e\u5b58\u5206\u914d&#xff1a;\u7528 drmModeCreateDumb() &#043; drmModeAddFB2() \u521b\u5efa Framebuffer&#xff0c;GEM \u5206\u914d\u663e\u5b58\u5e76\u8fd4\u56de\u53e5\u67c4&#xff1b;<\/li>\n<li>\u6e32\u67d3\u4e0e\u63d0\u4ea4&#xff1a;\u5408\u6210\u5668\u628a\u753b\u9762\u5199\u5165\u663e\u5b58&#xff0c;\u8c03\u7528 drmModePageFlip() \u89e6\u53d1\u9875\u9762\u7ffb\u8f6c&#xff1b;<\/li>\n<li>VBLANK \u540c\u6b65&#xff1a;\u7ffb\u8f6c\u53d1\u751f\u5728\u5782\u76f4\u6d88\u9690\u671f&#xff08;Vertical Blank&#xff09;&#xff0c;\u786e\u4fdd\u65e0\u6495\u88c2&#xff1b;<\/li>\n<li>\u8d44\u6e90\u91ca\u653e&#xff1a;\u5173\u95ed fd \u65f6 DRM \u81ea\u52a8\u56de\u6536\u663e\u5b58\u4e0e\u5bf9\u8c61\u3002<\/li>\n<p>&#x1f4a1; \u539f\u5b50\u63d0\u4ea4&#xff08;Atomic Commit&#xff09;&#xff1a;\u901a\u8fc7 drm_atomic_commit() \u4e00\u6b21\u6027\u6279\u91cf\u63d0\u4ea4 CRTC \/ Plane \/ Connector \u7684\u6240\u6709\u53c2\u6570&#xff0c;\u4fdd\u8bc1&#034;\u8981\u4e48\u5168\u90e8\u751f\u6548\u3001\u8981\u4e48\u5168\u90e8\u4e0d\u53d8&#034;&#xff0c;\u662f\u907f\u514d\u4e2d\u95f4\u6001\u82b1\u5c4f\u7684\u5173\u952e\u673a\u5236\u3002\u73b0\u4ee3 Rockchip \u663e\u793a\u9a71\u52a8\u9ed8\u8ba4\u8d70\u539f\u5b50\u6a21\u5f0f\u8bbe\u7f6e\u3002<\/p>\n<hr \/>\n<h3>\u4e09\u3001RK3528 \u663e\u793a\u786c\u4ef6&#xff1a;VOP2 &#043; HDMI 2.0<\/h3>\n<p>RK3528 \u91c7\u7528 VOP2 \u67b6\u6784&#xff08;\u4e0e RK3562\/3566\/3568\/3588 \u540c\u4ee3&#xff09;&#xff1a;\u6574\u9897 SoC \u53ea\u6709\u4e00\u4e2a VOP&#xff0c;\u4f46 VOP \u5185\u90e8\u6709\u591a\u4e2a\u72ec\u7acb\u7684 Video Port&#xff08;VP&#xff09; \u8f93\u51fa\u901a\u9053\u3002<\/p>\n<p>\u6839\u636e RK3528 \u6570\u636e\u624b\u518c&#xff1a;<\/p>\n<table>\n<tr>\u663e\u793a\u8d44\u6e90\u89c4\u683c<\/tr>\n<tbody>\n<tr>\n<td>Video Port0 (VP0)<\/td>\n<td>\u6700\u5927\u8f93\u51fa 4096\u00d72304&#064;60Hz&#xff08;HDMI \u4e3b\u901a\u9053&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>Video Port1 (VP1)<\/td>\n<td>\u6700\u5927\u8f93\u51fa 720\u00d7576&#064;60Hz<\/td>\n<\/tr>\n<tr>\n<td>Cluster \u7a97\u53e3<\/td>\n<td>\u6700\u5927 4096\u00d72304&#xff0c;\u652f\u6301 AFBC\u3001RGB\/YUV\/YUYV\u3001\u7f29\u653e\u3001\u65cb\u8f6c<\/td>\n<\/tr>\n<tr>\n<td>Esmart 0\/1\/2\/3<\/td>\n<td>\u6700\u5927\u8f93\u5165 2048\u00d72160&#xff0c;\u8f93\u51fa 4096\u00d72304&#xff0c;\u652f\u6301 4 \u533a\u57df<\/td>\n<\/tr>\n<tr>\n<td>Overlay<\/td>\n<td>Port0 \u6700\u591a 4 \u5c42\u53e0\u52a0&#xff0c;Port1 \u6700\u591a 2 \u5c42<\/td>\n<\/tr>\n<tr>\n<td>\u56fe\u5c42\u80fd\u529b<\/td>\n<td>\u9010\u50cf\u7d20 alpha&#xff08;\u989c\u8272\/alpha \u5206\u79bb&#xff09;\u3001Porter-Duff \u6df7\u5408\u3001\u8272\u952e&#xff08;Chroma Key&#xff09;\u3001\u6296\u52a8&#xff08;Dither&#xff09;\u30010\/90\/180\/270\u00b0 \u65cb\u8f6c\u3001X\/Y \u955c\u50cf<\/td>\n<\/tr>\n<tr>\n<td>HDMI<\/td>\n<td>\u7b26\u5408 HDMI 2.0b&#xff0c;\u652f\u6301 4K\u00d72K&#064;60\u3001\u5e26\u5bbd 18Gbps\u3001HDCP 1.4\/2.2\u3001HPD \u70ed\u63d2\u62d4\u68c0\u6d4b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>RK3528 \u7684 HDMI \u4e0e VOP \u7ed1\u5b9a\u5173\u7cfb&#xff1a;HDMI \u7684\u56fe\u50cf\u6570\u636e\u6765\u81ea VOP&#xff0c;\u5728 RK3528 \u4e0a HDMI \u56fa\u5b9a\u7ed1\u5b9a\u5230 VP0&#xff0c;\u5e76\u56fa\u5b9a\u4f7f\u7528 HDMI PHY PLL \u4f5c\u4e3a dclk \u65f6\u949f\u6e90&#xff0c;\u65e0\u9700\u5728 DTS \u4e2d\u989d\u5916\u914d\u7f6e PLL \u5373\u53ef\u8f93\u51fa\u6807\u51c6\u5206\u8fa8\u7387&#xff08;\u5982 1080P60&#xff09;\u3002MEDAI V2 \u7684 HDMI 2.0 \u672c\u5730\u8f93\u51fa\u89c4\u683c\u4e3a 1920\u00d71080&#064;60&#xff08;\u89c1\u6280\u672f\u53c2\u6570\u8868&#xff09;&#xff0c;\u5b8c\u5168\u843d\u5728 VP0 \u80fd\u529b\u8303\u56f4\u5185\u3002<\/p>\n<p>&#x1f4a1; \u7406\u89e3\u5c42\u7ea7&#xff1a;DRM \u7684 CRTC \u5bf9\u8c61\u5728 RK3528 \u4e0a\u5c31\u6620\u5c04\u4e3a VOP2 \u7684\u67d0\u4e00\u4e2a Video Port&#xff08;VP0&#xff09;&#xff1b;Plane \u6620\u5c04\u4e3a VOP2 \u7684 Cluster\/Esmart\/Overlay \u7a97\u53e3&#xff1b;Encoder\/Connector \u6620\u5c04\u4e3a HDMI TX \u63a7\u5236\u5668\u4e0e HDMI \u7269\u7406\u63a5\u53e3\u3002\u8f6f\u4ef6\u770b\u5230\u7684&#034;\u4e94\u5927\u5bf9\u8c61&#034;&#xff0c;\u786c\u4ef6\u4e0a\u5c31\u662f\u8fd9\u4e00\u5957\u3002<\/p>\n<hr \/>\n<h3>\u56db\u3001RGA &#043; DRM \u534f\u540c&#xff1a;\u4ece\u591a\u56fe\u5c42\u5408\u6210\u5230 HDMI \u9001\u663e<\/h3>\n<h4>4.1 \u4e3a\u4ec0\u4e48\u662f RGA \u5148\u5408\u6210\u3001DRM \u540e\u9001\u663e<\/h4>\n<p>MEDAI V2 \u7684\u753b\u9762\u4e0d\u662f&#034;\u4e00\u5e45\u73b0\u6210\u7684\u56fe&#034;&#xff0c;\u800c\u662f\u591a\u8def\u6765\u6e90 &#043; \u591a\u5c42\u7279\u6548\u5b9e\u65f6\u62fc\u51fa\u6765\u7684&#xff1a;<\/p>\n<ul>\n<li>\u4e3b\u8f93\u5165\u6e90&#xff1a;UVC \u6444\u50cf\u5934&#xff08;\u7ecf V4L2 \u91c7\u96c6\u3001MPP \u786c\u89e3\u5f97\u5230 NV12 \u5e27&#xff09;&#xff1b;<\/li>\n<li>\u526f\u8f93\u5165\u6e90&#xff1a;NDI \/ NET1 \/ NET2&#xff08;\u7ecf\u7f51\u7edc\u62c9\u6d41\u3001MPP \u786c\u89e3&#xff09;&#xff1b;<\/li>\n<li>\u7279\u6548\u5c42&#xff1a;\u89c6\u9891\u53e0\u52a0&#xff08;Mode 1&#xff5e;5 \u53cc\u8def\u62fc\u63a5&#xff09;\u3001\u7eff\u5e55\u62a0\u56fe&#xff08;\u524d\u666f&#043;\u80cc\u666f\u5408\u6210&#xff09;\u3001LOGO&#xff08;RGBA \u53e0\u52a0&#xff09;\u3001\u955c\u50cf\/\u65cb\u8f6c&#xff08;\u7f16\u7801\u53c2\u6570\u91cc\u914d\u7f6e&#xff09;&#xff1b;<\/li>\n<li>\u8f93\u51fa&#xff1a;\u672c\u5730 HDMI \u7535\u89c6 &#043; \u7f16\u7801\u63a8\u6d41&#xff08;\u4e24\u8def\u5171\u7528\u540c\u4e00\u5408\u6210\u7ed3\u679c&#xff09;\u3002<\/li>\n<\/ul>\n<p>RGA&#xff08;Rockchip 2D \u786c\u4ef6\u52a0\u901f\u5668&#xff09; \u5728\u8fd9\u91cc\u627f\u62c5&#034;\u5408\u6210\u8f66\u95f4&#034;&#xff1a;\u5b83\u628a\u4e3b\u6e90\u3001\u526f\u6e90\u3001\u80cc\u666f\u56fe\u3001LOGO \u6309\u6a21\u5f0f\u505a\u7f29\u653e\u3001\u8272\u5f69\u8f6c\u6362\u3001Alpha \u6df7\u5408\u3001\u8272\u952e\u62a0\u56fe\u3001\u65cb\u8f6c\/\u955c\u50cf&#xff0c;\u4ea7\u51fa\u4e00\u4e2a\u7edf\u4e00\u683c\u5f0f\u7684\u5b8c\u6574\u5e27\u3002\u7136\u540e\u8fd9\u4e2a\u5e27\u88ab\u4ea4\u7ed9 DRM&#xff0c;\u7531 VOP2 \u626b\u63cf\u8f93\u51fa\u5230 HDMI\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u4e0d\u5168\u90e8\u4ea4\u7ed9 VOP2 \u7684\u786c\u4ef6 Plane \u53bb\u505a\u591a\u5c42\u5408\u6210&#xff1f;\u2014\u2014\u56e0\u4e3a MEDAI V2 \u7684\u53e0\u52a0\u6a21\u5f0f&#xff08;\u5982\u753b\u4e2d\u753b\u3001\u5de6\u53f3\u62fc\u63a5\u3001\u7eff\u5e55\u524d\u666f\u5408\u6210&#xff09;\u903b\u8f91\u590d\u6742\u3001\u56fe\u5c42\u6570\u91cf\u4e0e\u4f4d\u7f6e\u5173\u7cfb\u968f\u914d\u7f6e\u52a8\u6001\u53d8\u5316&#xff0c;\u7528 RGA \u5728\u5185\u5b58\u91cc&#034;\u5148\u5408\u6210\u6210\u4e00\u6574\u5f20&#034;&#xff0c;\u518d\u8ba9 DRM \u7528\u5355\u4e2a Primary Plane \u626b\u63cf\u8f93\u51fa&#xff0c;\u662f\u6700\u7a33\u3001\u6700\u7701\u5e26\u5bbd\u3001\u4e5f\u6700\u5bb9\u6613\u540c\u65f6\u5582\u7ed9\u7f16\u7801\u94fe\u8def\u7684\u505a\u6cd5\u3002RGA \u8f93\u51fa\u5e27\u65e2\u9001 HDMI \u9884\u89c8&#xff0c;\u4e5f\u9001 MPP \u7f16\u7801&#xff0c;\u5b9e\u73b0&#034;\u9884\u89c8\/\u63a8\u6d41\u540c\u6e90&#034;\u3002<\/p>\n<h4>4.2 \u5b8c\u6574\u6d41\u6c34\u7ebf\u62c6\u89e3<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050102-6ac8750e089ce.jpg\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>[UVC \u6444\u50cf\u5934]\u2500\u2500V4L2\u91c7\u96c6\u2500\u2500\u2510<br \/>\n[NDI\/NET1\/NET2]\u2500MPP\u786c\u89e3\u2500\u2524<br \/>\n                        \u251c\u2500\u2192 [RGA 2D \u5408\u6210\u8f66\u95f4]<br \/>\n[\u80cc\u666f\u56fe\/\u524d\u666f\u56fe]\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524      \u2022 \u7f29\u653e\/\u8272\u5f69\u8f6c\u6362(imcvtcolor)<br \/>\n[LOGO \u56fe\u7247 RGBA]\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524      \u2022 Alpha\u6df7\u5408(imblend)<br \/>\n                        \u2502      \u2022 \u8272\u952e\u62a0\u56fe(chroma key) \u2192 \u7eff\u5e55<br \/>\n                        \u2502      \u2022 \u65cb\u8f6c\/\u955c\u50cf(imrotate\/imflip)<br \/>\n                        \u2502      \u2022 \u6309 Mode1~5 \u62fc\u63a5\u53cc\u8def<br \/>\n                        \u25bc<br \/>\n            [\u5408\u6210\u540e\u7edf\u4e00\u5e27 NV12\/RGB]<br \/>\n                        \u2502  (DMA-BUF \u96f6\u62f7\u8d1d \/ dumb buffer)<br \/>\n                        \u25bc<br \/>\n            [DRM \/ GEM] \u5206\u914d Framebuffer<br \/>\n                        \u2502  drmModeAddFB2() \u6ce8\u518c<br \/>\n                        \u25bc<br \/>\n            [KMS] Plane(Primary) \u2192 CRTC(&#061;VOP2 VP0)<br \/>\n                        \u2502  drm_atomic_commit() \u539f\u5b50\u63d0\u4ea4<br \/>\n                        \u25bc<br \/>\n            [Encoder] HDMI TX \u683c\u5f0f\u8f6c\u6362<br \/>\n                        \u25bc<br \/>\n            [Connector] HDMI 2.0 \u63a5\u53e3 &#043; EDID\/HPD \u70ed\u63d2\u62d4<br \/>\n                        \u25bc<br \/>\n            [\u672c\u5730\u7535\u89c6 \/ \u76d1\u89c6\u5668]  1920\u00d71080&#064;60<br \/>\n                        \u2514\u2500 \u540c\u65f6&#xff1a;\u5408\u6210\u5e27\u9001 MPP \u7f16\u7801 \u2192 RTMP\/RTSP\/SRT\u2026 \u63a8\u6d41<\/p>\n<p>\u8981\u70b9&#xff1a;<\/p>\n<ul>\n<li>RGA \u4e0e DRM \u901a\u8fc7 DMA-BUF \u8854\u63a5&#xff1a;RGA \u8f93\u51fa\u7684\u5e27 buffer \u4ee5 dma-buf \u5f62\u5f0f\u5bfc\u5165 DRM&#xff0c;\u907f\u514d CPU \u4fa7 memcpy&#xff0c;\u964d\u4f4e\u5ef6\u8fdf\u4e0e\u5185\u5b58\u5e26\u5bbd\u5360\u7528&#xff1b;<\/li>\n<li>\u539f\u5b50\u63d0\u4ea4\u4fdd\u8bc1\u4e0d\u82b1\u5c4f&#xff1a;\u6240\u6709\u56fe\u5c42\u53c2\u6570\u4e00\u6b21\u6027 drm_atomic_commit()&#xff0c;\u5207\u6362\u53e0\u52a0\u6a21\u5f0f\/\u7eff\u5e55\u65f6\u4e0d\u4f1a\u51fa\u73b0\u534a\u5e27\u9519\u4e71&#xff1b;<\/li>\n<li>VBLANK \u9875\u7ffb\u8f6c\u4fdd\u8bc1\u4e0d\u6495\u88c2&#xff1a;HDMI \u663e\u793a\u7528\u9875\u9762\u7ffb\u8f6c\u5728\u5782\u76f4\u6d88\u9690\u671f\u6362\u5e27&#xff1b;<\/li>\n<li>EDID\/HPD \u70ed\u63d2\u62d4&#xff1a;Connector \u4e0a\u62a5 HDMI \u662f\u5426\u63a5\u5165\u3001\u652f\u6301\u7684\u5206\u8fa8\u7387&#xff0c;\u5bf9\u5e94\u8bf4\u660e\u4e66&#034;\u7cfb\u7edf\u72b6\u6001 \u2192 HDMI \u8f93\u51fa\u63a5\u5165\u72b6\u6001&#034;\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e94\u3001\u8bbe\u5907\u5b9e\u6218&#xff1a;\u7ed3\u5408 MEDAI V2 \u4f7f\u7528\u8bf4\u660e\u4e66<\/h3>\n<p>\u4e0b\u9762\u628a\u4e0a\u9762\u7684\u6846\u67b6\u843d\u5230 MEDAI V2 \u7684\u5b9e\u9645\u914d\u7f6e\u4e0a&#xff0c;\u6240\u6709\u622a\u56fe\u5747\u6765\u81ea\u8bbe\u5907\u771f\u5b9e WEB \u754c\u9762\u3002<\/p>\n<h4>5.1 \u89c6\u9891\u8f93\u51fa\u6e90\u9009\u62e9&#xff08;\u51b3\u5b9a\u9001\u663e\u4e3b\u753b\u9762&#xff09;<\/h4>\n<p>\u8fdb\u5165 \u7f16\u7801\u914d\u7f6e &gt; \u4fe1\u53f7\u914d\u7f6e&#xff0c;\u5728&#034;\u89c6\u9891\u8f93\u51fa&#xff08;HDMI \u663e\u793a\u4e0e\u7f16\u7801\u6e90\u9009\u62e9&#xff09;&#034;\u4e2d\u9009\u62e9\u9001\u663e\u4e3b\u6e90&#xff1a;<\/p>\n<ul>\n<li>UVC&#xff1a;USB \u6444\u50cf\u5934\u6e90&#xff08;\u9ed8\u8ba4\u4e3b\u8f93\u5165\u6e90&#xff09;&#xff1b;<\/li>\n<li>NDI&#xff1a;NDI \u8f93\u5165\u6e90&#xff1b;<\/li>\n<li>NET1 \/ NET2&#xff1a;\u7f51\u7edc\u6e90 1 \/ \u7f51\u7edc\u6e90 2 \u8f93\u5165\u6e90\u3002<\/li>\n<\/ul>\n<p>\u9875\u9762\u5e95\u90e8\u7684\u9884\u76d1\u72b6\u6001\u533a\u4f1a\u5b9e\u65f6\u663e\u793a\u6240\u6709\u8f93\u5165\u6e90\u7684\u89c6\u9891\u753b\u9762\u2014\u2014\u8fd9\u6b63\u662f\u7531 DRM\/VOP2 \u628a\u591a\u8def\u91c7\u96c6\u5e27\u5408\u6210\u540e\u5728\u672c\u5730 HDMI \u4e0a\u5448\u73b0\u7684\u9884\u89c8\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050102-6ac8750eb1a2b.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u6ce8\u610f&#xff1a;UVC \u4e3a\u4e3b\u8f93\u5165\u6e90&#xff1b;\u526f\u8f93\u5165\u6e90 NDI \/ NET1 \/ NET2 \u4e09\u8005\u53ea\u80fd\u9009\u5176\u4e00&#xff08;NDI \u4e0e\u7f51\u7edc\u6d41\u4e92\u65a5&#xff09;\u3002<\/p>\n<h4>5.2 \u955c\u50cf \/ \u65cb\u8f6c&#xff08;\u7f16\u7801\u53c2\u6570\u540c\u6b65\u5230\u663e\u793a\u5e27&#xff09;<\/h4>\n<p>\u8fdb\u5165 \u7f16\u7801\u914d\u7f6e &gt; \u9ad8\u7ea7\u7f16\u7801\u914d\u7f6e&#xff0c;\u53ef\u8bbe\u7f6e\u5f71\u54cd\u663e\u793a\/\u7f16\u7801\u5e27\u7684\u53d8\u6362&#xff1a;<\/p>\n<ul>\n<li>\u955c\u50cf\u914d\u7f6e&#xff1a;\u89c6\u9891\u7f16\u7801\u753b\u9762\u955c\u50cf\u663e\u793a&#xff08;\u5bf9\u5e94 RGA \u7684 imflip X\/Y \u955c\u50cf&#xff09;&#xff1b;<\/li>\n<li>\u65cb\u8f6c\u914d\u7f6e&#xff1a;0\u00b0 \/ 90\u00b0 \/ 180\u00b0 \/ 270\u00b0&#xff08;\u5bf9\u5e94 RGA \u7684 imrotate&#xff0c;\u4e5f\u5bf9\u5e94 VOP2 Plane \u7684 rotation \u5c5e\u6027&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u53d8\u6362\u5728 RGA \u5408\u6210\u9636\u6bb5\u5373\u4f5c\u7528\u4e8e\u5e27&#xff0c;\u56e0\u6b64 HDMI \u672c\u5730\u9884\u89c8\u4e0e\u63a8\u6d41\u753b\u9762\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050103-6ac8750f0119d.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>5.3 \u89c6\u9891\u53e0\u52a0 Mode 1&#xff5e;5&#xff08;RGA \u591a\u56fe\u5c42\u5408\u6210&#xff09;<\/h4>\n<p>\u8fdb\u5165 \u7279\u6548\u914d\u7f6e &gt; \u89c6\u9891\u53e0\u52a0&#xff0c;\u8fd9\u662f RGA \u5408\u6210\u6700\u76f4\u63a5\u7684\u4f53\u73b0&#xff1a;<\/p>\n<ul>\n<li>\u80cc\u666f\u56fe\u7247&#xff1a;\u672c\u5730\u4e0a\u4f20&#xff1b;<\/li>\n<li>\u4e3b\u8f93\u5165\u6e90&#xff1a;\u56fa\u5b9a\u4e3a UVC&#xff1b;<\/li>\n<li>\u526f\u8f93\u5165\u6e90&#xff1a;\u4e0b\u62c9\u9009\u62e9 NDI \/ NET1 \/ NET2&#xff1b;<\/li>\n<li>\u6a21\u5f0f\u9009\u62e9&#xff1a;Mode 1&#xff5e;5 \u5171\u4e94\u79cd\u53e0\u52a0\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<p>\u4e94\u79cd\u6a21\u5f0f\u6548\u679c&#xff08;\u6765\u81ea\u8bf4\u660e\u4e66&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u6a21\u5f0f 1&#xff1a;\u5de6\u53f3\u4e2d\u95f4\u89c6\u9891\u53e0\u52a0&#xff1b;<\/li>\n<li>\u6a21\u5f0f 2&#xff1a;\u5de6\u4e0a\u53f3\u4e0b\u89c6\u9891\u53e0\u52a0&#xff1b;<\/li>\n<li>\u6a21\u5f0f 3&#xff1a;\u5de6\u4e0b\u53f3\u4e0a\u89c6\u9891\u53e0\u52a0&#xff1b;<\/li>\n<li>\u6a21\u5f0f 4&#xff1a;\u753b\u4e2d\u753b&#xff0c;\u4e3b UVC &#043; \u53f3\u4e0a\u7b2c\u4e8c\u8def\u89c6\u9891&#xff1b;<\/li>\n<li>\u6a21\u5f0f 5&#xff1a;\u753b\u4e2d\u753b&#xff0c;\u4e3b UVC &#043; \u53f3\u4e0b\u7b2c\u4e8c\u8def\u89c6\u9891\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050103-6ac8750f5a31e.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050103-6ac8750f6f53c.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<\/ul>\n<p>\u26a0\ufe0f \u4e94\u79cd\u6a21\u5f0f\u5207\u6362\u65f6&#xff0c;\u9700\u5148\u70b9\u51fb&#034;\u5e94\u7528&#034;\u53c2\u6570&#xff0c;\u518d\u91cd\u65b0\u5f00\u5173\u542f\u7528\u5f00\u5173\u65b9\u53ef\u751f\u6548&#xff08;\u8bf4\u660e\u4e66\u660e\u786e\u63d0\u793a&#xff09;\u3002\u5728\u5e95\u5c42\u5373\u5bf9\u5e94\u4e00\u6b21 RGA \u5408\u6210\u53c2\u6570\u7684\u91cd\u914d &#043; \u4e00\u6b21 DRM \u539f\u5b50\u63d0\u4ea4\u3002<\/p>\n<h4>5.4 \u7eff\u5e55\u62a0\u56fe\u4e0e LOGO \u53e0\u52a0&#xff08;RGBA \/ \u8272\u952e\u5408\u6210&#xff09;<\/h4>\n<ul>\n<li>\u7eff\u5e55\u62a0\u56fe&#xff08;\u7279\u6548\u914d\u7f6e &gt; \u7eff\u5e55\u914d\u7f6e&#xff09;&#xff1a;\u7528\u80cc\u666f\u56fe\u7247\u4e0e\u524d\u666f&#xff08;\u4eba\u5f62&#xff09;\u5408\u6210&#xff0c;\u53ef\u8c03\u8272\u5dee\u5bb9\u5fcd\u5ea6\u3001\u8fb9\u7f18\u5e73\u6ed1\u5ea6\u3001\u7eff\u8272\u6ea2\u51fa\u8272\u6291\u5236\u3001\u4eae\u5ea6\/\u5bf9\u6bd4\u5ea6\u3001\u8fb9\u7f18\u4fb5\u8680\/\u6a21\u7cca\u3002\u5e95\u5c42\u7528 RGA \u7684 \u8272\u952e&#xff08;Chroma Key&#xff09;&#043; Alpha \u6df7\u5408 \u5b9e\u73b0&#034;\u53bb\u7eff\u7559\u4eba\u3001\u6362\u80cc\u666f&#034;\u3002<\/li>\n<li>LOGO \u6c34\u5370&#xff08;\u7279\u6548\u914d\u7f6e &gt; LOGO \u53c2\u6570&#xff09;&#xff1a;\u4e0a\u4f20 LOGO \u56fe\u7247&#xff0c;\u652f\u6301\u4ee5\u89c6\u9891\u5de6\u4e0a\u89d2\u4e3a\u57fa\u51c6\u7684 X\/Y \u504f\u79fb&#xff08;\u6700\u5927 100 \u50cf\u7d20&#xff09;&#xff0c;\u4ee5 RGBA \u53e0\u52a0 \u65b9\u5f0f\u5408\u6210\u5230\u753b\u9762&#xff08;\u6280\u672f\u53c2\u6570\u6ce8\u660e&#034;\u652f\u6301 RGBA \u53e0\u52a0&#034;&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u4e24\u8005\u5408\u6210\u7ed3\u679c\u540c\u6837\u8fdb\u5165 RGA \u7684\u7edf\u4e00\u5e27&#xff0c;\u518d\u7ecf DRM \u9001 HDMI \u9884\u89c8\u4e0e\u7f16\u7801\u63a8\u6d41\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261009050103-6ac8750f84193.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>5.5 \u7cfb\u7edf\u72b6\u6001\u9a8c\u8bc1 HDMI \u8f93\u51fa\u63a5\u5165<\/h4>\n<h3>\u8fdb\u5165 \u7cfb\u7edf\u72b6\u6001 \u9875&#xff0c;\u5728&#034;\u8f93\u51fa\u72b6\u6001&#034;\u4e2d\u53ef\u770b\u5230 HDMI \u8f93\u51fa\u63a5\u5165\u72b6\u6001\u3001RTMP \u63a8\u6d41\u65f6\u957f\u3001USB \u672c\u5730\u5f55\u5236\u65f6\u957f&#xff1b;&#034;\u8f93\u5165\u72b6\u6001&#034;\u663e\u793a UVC\/NDI\/NET1\/NET2 \u7684\u8fde\u63a5\u4e0e\u63a5\u5165\u5206\u8fa8\u7387\u3002\u8fd9\u6b63\u5bf9\u5e94 DRM Connector \u4e0a\u62a5\u7684 HDMI \u8fde\u63a5\u72b6\u6001&#xff08;HPD\/EDID&#xff09;\u3002<\/h3>\n<h3>\u516d\u3001\u56fe\u5c42\u4e0e\u6a21\u5f0f\u901f\u67e5\u8868<\/h3>\n<table>\n<tr>\u9879\u76ee\u53d6\u503c \/ \u8bf4\u660e\u5bf9\u5e94\u5e95\u5c42\u673a\u5236<\/tr>\n<tbody>\n<tr>\n<td>\u672c\u5730\u8f93\u51fa\u63a5\u53e3<\/td>\n<td>HDMI 2.0&#xff0c;1920\u00d71080&#064;60<\/td>\n<td>DRM Connector &#043; VOP2 VP0<\/td>\n<\/tr>\n<tr>\n<td>\u663e\u793a\u6846\u67b6<\/td>\n<td>DRM\/KMS&#xff08;\u66ff\u4ee3 FBDEV&#xff09;<\/td>\n<td>\/dev\/dri\/card0 &#043; libdrm<\/td>\n<\/tr>\n<tr>\n<td>\u5408\u6210\u65b9\u5f0f<\/td>\n<td>RGA 2D \u5148\u5408\u6210 \u2192 DRM \u9001\u663e<\/td>\n<td>RGA \u8f93\u51fa\u5e27 \u2192 DMA-BUF \u2192 drmModeAddFB2<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8f93\u5165\u6e90<\/td>\n<td>UVC&#xff08;\u56fa\u5b9a&#xff09;<\/td>\n<td>V4L2 \u91c7\u96c6 &#043; MPP \u786c\u89e3<\/td>\n<\/tr>\n<tr>\n<td>\u526f\u8f93\u5165\u6e90<\/td>\n<td>NDI \/ NET1 \/ NET2&#xff08;\u4e09\u9009\u4e00&#xff09;<\/td>\n<td>\u7f51\u7edc\u62c9\u6d41 &#043; MPP \u786c\u89e3<\/td>\n<\/tr>\n<tr>\n<td>\u89c6\u9891\u53e0\u52a0<\/td>\n<td>Mode 1&#xff5e;5&#xff08;5 \u79cd\u62fc\u63a5&#xff09;<\/td>\n<td>RGA Alpha \u6df7\u5408 &#043; \u7f29\u653e\u62fc\u63a5<\/td>\n<\/tr>\n<tr>\n<td>\u7eff\u5e55<\/td>\n<td>\u8272\u952e\u62a0\u56fe &#043; \u80cc\u666f\u5408\u6210<\/td>\n<td>RGA Chroma Key &#043; imblend<\/td>\n<\/tr>\n<tr>\n<td>LOGO<\/td>\n<td>RGBA \u53e0\u52a0&#xff0c;X\/Y \u504f\u79fb \u2264100px<\/td>\n<td>RGA \u9010\u50cf\u7d20 alpha<\/td>\n<\/tr>\n<tr>\n<td>\u955c\u50cf \/ \u65cb\u8f6c<\/td>\n<td>\u652f\u6301 X\/Y \u955c\u50cf&#xff0c;0\/90\/180\/270\u00b0<\/td>\n<td>RGA imflip\/imrotate&#xff08;\u6216 VOP2 Plane \u5c5e\u6027&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u9632\u6495\u88c2<\/td>\n<td>VBLANK \u9875\u7ffb\u8f6c<\/td>\n<td>drmModePageFlip<\/td>\n<\/tr>\n<tr>\n<td>\u9632\u82b1\u5c4f<\/td>\n<td>\u539f\u5b50\u63d0\u4ea4<\/td>\n<td>drm_atomic_commit<\/td>\n<\/tr>\n<tr>\n<td>\u70ed\u63d2\u62d4<\/td>\n<td>HDMI \u63a5\u5165\u72b6\u6001\u4e0a\u62a5<\/td>\n<td>DRM Connector HPD\/EDID<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u4e03\u3001\u6392\u969c\u901f\u67e5\u8868<\/h3>\n<table>\n<tr>\u73b0\u8c61\u53ef\u80fd\u539f\u56e0\u6392\u67e5 \/ \u89e3\u51b3<\/tr>\n<tbody>\n<tr>\n<td>HDMI \u7535\u89c6\u65e0\u753b\u9762<\/td>\n<td>\u7ebf\u7f06 \/ \u63a5\u53e3\u672a\u63a5\u597d&#xff0c;\u6216\u7535\u89c6\u8f93\u5165\u6e90\u9009\u9519<\/td>\n<td>\u786e\u8ba4 HDMI \u7ebf\u63a5\u8bbe\u5907 HDMI 2.0 \u53e3&#xff1b;\u7535\u89c6\u5207\u5230\u5bf9\u5e94 HDMI \u901a\u9053&#xff1b;\u770b\u7cfb\u7edf\u72b6\u6001&#034;HDMI \u8f93\u51fa\u63a5\u5165\u72b6\u6001&#034;\u662f\u5426\u53d8&#034;\u5df2\u63a5\u5165&#034;<\/td>\n<\/tr>\n<tr>\n<td>\u5207\u6362\u53e0\u52a0\u6a21\u5f0f\u540e\u753b\u9762\u4e0d\u53d8<\/td>\n<td>\u672a\u91cd\u65b0\u5f00\u5173\u542f\u7528<\/td>\n<td>\u5148\u70b9&#034;\u5e94\u7528&#034;&#xff0c;\u518d\u5173\u6389\u518d\u6253\u5f00\u542f\u7528\u5f00\u5173&#xff08;\u8bf4\u660e\u4e66\u63d0\u793a&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>HDMI \u4e0e\u63a8\u6d41\u753b\u9762\u955c\u50cf\u4e0d\u4e00\u81f4<\/td>\n<td>\u955c\u50cf\u4ec5\u5bf9\u7f16\u7801\u753b\u9762\u751f\u6548\u7406\u89e3\u504f\u5dee<\/td>\n<td>\u955c\u50cf\/\u65cb\u8f6c\u5728 RGA 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l<\/p>\n","protected":false},"author":2,"featured_media":114526,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[946,1326,215,214],"topic":[],"class_list":["post-114532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-946","tag-1326","tag-215","tag-214"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RK3528 RGA+DRM\u6846\u67b6 HDMI out\u89c6\u9891\u8f93\u51fa\uff1a\u4ece\u591a\u56fe\u5c42\u5408\u6210\u5230\u663e\u793a\u9001\u663e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/114532.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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