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Refactor plane property loop to avoid leak

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This commit is contained in:
Cameron Gutman 2024-06-23 18:11:47 -05:00
parent fbe5e6f01f
commit e458682a23
1 changed files with 12 additions and 12 deletions
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24
app/streaming/video/ffmpeg-renderers/drm.cpp
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@ -450,7 +450,6 @@ bool DrmRenderer::initialize(PDECODER_PARAMETERS params)
// FIXME: We should check the actual DRM format in a real AVFrame rather
// than just assuming it will be a certain hardcoded type like NV12 based
// on the chosen video format.
m_PlaneId = 0;
uint64_t maxZpos = 0;
for (uint32_t i = 0; i < planeRes->count_planes; i++) {
drmModePlane* plane = drmModeGetPlane(m_DrmFd, planeRes->planes[i]);
@ -494,18 +493,22 @@ bool DrmRenderer::initialize(PDECODER_PARAMETERS params)
drmModeObjectPropertiesPtr props = drmModeObjectGetProperties(m_DrmFd, planeRes->planes[i], DRM_MODE_OBJECT_PLANE);
if (props != nullptr) {
// Only consider primary and overlay planes as valid render targets
uint64_t type;
uint64_t zPos = 0;
// Only consider primary and overlay planes as valid render targets
if (!getPropertyByName(props, "type", &type) || (type != DRM_PLANE_TYPE_PRIMARY && type != DRM_PLANE_TYPE_OVERLAY)) {
drmModeFreePlane(plane);
continue;
}
// If this is a higher Z position than the last candidate plane,
// let's prefer this one over the previous one. Note: zpos is not
// a required property, but if any plane has it, all planes must.
uint64_t zPos = 0;
if (!getPropertyByName(props, "zpos", &zPos) || !m_Plane || zPos > maxZpos) {
// If this plane has a zpos property and it's lower (further from user) than
// the previous plane we found, avoid this plane in favor of the closer one.
//
// Note: zpos is not a required property, but if any plane has it, all planes must.
else if (getPropertyByName(props, "zpos", &zPos) && m_PlaneId && zPos < maxZpos) {
drmModeFreePlane(plane);
}
else {
// This plane is a better match than what we had previously!
m_PlaneId = plane->plane_id;
maxZpos = zPos;
@ -514,9 +517,6 @@ bool DrmRenderer::initialize(PDECODER_PARAMETERS params)
}
m_Plane = plane;
}
else {
drmModeFreePlane(plane);
}
drmModeFreeObjectProperties(props);
}