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Allow primary planes to be overlays for video underlays

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This commit is contained in:
Cameron Gutman 2026-01-06 02:12:32 -06:00
commit 8aec35a650
1 changed files with 10 additions and 4 deletions
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14
app/streaming/video/ffmpeg-renderers/drm.cpp
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@ -806,10 +806,16 @@ bool DrmRenderer::initialize(PDECODER_PARAMETERS params)
}
DrmPropertyMap props { m_DrmFd, planeRes->planes[i], DRM_MODE_OBJECT_PLANE };
// Only consider overlay planes as valid targets
if (auto type = props.property("type"); type->initialValue() != DRM_PLANE_TYPE_OVERLAY) {
drmModeFreePlane(plane);
continue;
// Only consider overlay or primary planes as valid targets
// The latter might seem strange, but some DRM devices use
// underlays where the YUV-compatible overlay plane resides
// underneath the primary plane. In this case, we will use
// the primary plane as an overlay plane on top of the video.
if (auto type = props.property("type"))
if (type->initialValue() != DRM_PLANE_TYPE_OVERLAY && type->initialValue() != DRM_PLANE_TYPE_PRIMARY) {
drmModeFreePlane(plane);
continue;
}
}
// The overlay plane must support ARGB8888