gstgl.global

Global functions for gstgl1 library

fn bufferAddGlSyncMeta bufferAddGlSyncMetaFull bufferPoolConfigGetGlAllocationParams bufferPoolConfigGetGlMinFreeQueueSize bufferPoolConfigSetGlAllocationParams bufferPoolConfigSetGlMinFreeQueueSize contextGetGlDisplay contextSetGlDisplay glCheckExtension glElementPropagateDisplayContext glEnsureElementData glGetAffineTransformationMetaAsNdc glGetPlaneDataSize glGetPlaneStart glHandleContextQuery glHandleSetContext glMultiplyMatrix4 glSetAffineTransformationMetaFromNdc glSizedGlFormatFromGlFormatType glslStringGetVersionProfile glStereoDownmixModeGetType glSwizzleInvert glSyncMetaApiGetType glValueGetTextureTargetMask glValueSetTextureTarget glValueSetTextureTargetFromMask glVersionToGlslVersion glVideoFormatSwizzle isGlBaseMemory isGlBuffer isGlMemory isGlMemoryPbo isGlRenderbuffer

Functions 33

fngstgl.glsync_meta.GLSyncMeta bufferAddGlSyncMeta(gstgl.glcontext.GLContext context, gst.buffer.Buffer buffer)
fngstgl.glsync_meta.GLSyncMeta bufferAddGlSyncMetaFull(gstgl.glcontext.GLContext context, gst.buffer.Buffer buffer, void * data = null)
fngstgl.glallocation_params.GLAllocationParams bufferPoolConfigGetGlAllocationParams(gst.structure.Structure config)
fnuint bufferPoolConfigGetGlMinFreeQueueSize(gst.structure.Structure config)See [gstgl.global.bufferPoolConfigSetGlMinFreeQueueSize].
fnvoid bufferPoolConfigSetGlAllocationParams(gst.structure.Structure config, gstgl.glallocation_params.GLAllocationParams params = null)Sets params on config
fnvoid bufferPoolConfigSetGlMinFreeQueueSize(gst.structure.Structure config, uint queueSize)Instructs the #GstGLBufferPool to keep queue_size amount of buffers around before allowing them for reuse.
fnbool contextGetGlDisplay(gst.context.Context context, out gstgl.gldisplay.GLDisplay display)
fnvoid contextSetGlDisplay(gst.context.Context context, gstgl.gldisplay.GLDisplay display = null)Sets display on context
fnbool glCheckExtension(string name, string ext)
fnvoid glElementPropagateDisplayContext(gst.element.Element element, gstgl.gldisplay.GLDisplay display)
fnbool glEnsureElementData(gst.element.Element element, gstgl.gldisplay.GLDisplay displayPtr, gstgl.glcontext.GLContext otherContextPtr)Perform the steps necessary for retrieving a #GstGLDisplay and (optionally) an application provided #GstGLContext from the surrounding elements or from the application using the #GstContext mechanism.
fnvoid glGetAffineTransformationMetaAsNdc(gstvideo.video_affine_transformation_meta.VideoAffineTransformationMeta meta, ref float[] matrix)Retrieves the stored 4x4 affine transformation matrix stored in meta in NDC coordinates. if meta is NULL, an identity matrix is returned.
fnsize_t glGetPlaneDataSize(gstvideo.video_info.VideoInfo info, gstvideo.video_alignment.VideoAlignment align_, uint plane)Retrieve the size in bytes of a video plane of data with a certain alignment
fnsize_t glGetPlaneStart(gstvideo.video_info.VideoInfo info, gstvideo.video_alignment.VideoAlignment valign, uint plane)
fnbool glHandleContextQuery(gst.element.Element element, gst.query.Query query, gstgl.gldisplay.GLDisplay display = null, gstgl.glcontext.GLContext context = null, gstgl.glcontext.GLContext otherContext = null)
fnbool glHandleSetContext(gst.element.Element element, gst.context.Context context, out gstgl.gldisplay.GLDisplay display, out gstgl.glcontext.GLContext otherContext)Helper function for implementing #GstElementClass.set_context() in OpenGL capable elements.
fnvoid glMultiplyMatrix4(float[] a, float[] b, ref float[] result)Multiplies two 4x4 matrices, `a` and `b`, and stores the result, a 2-dimensional array of #gfloat, in result.
fnvoid glSetAffineTransformationMetaFromNdc(gstvideo.video_affine_transformation_meta.VideoAffineTransformationMeta meta, float[] matrix)Set the 4x4 affine transformation matrix stored in meta from the NDC coordinates in matrix.
fnuint glSizedGlFormatFromGlFormatType(gstgl.glcontext.GLContext context, uint format, uint type)
fngobject.types.GType glStereoDownmixModeGetType()
fnvoid glSwizzleInvert(int[] swizzle, ref int[] inversion)Given swizzle, produce inversion such that:
fngobject.types.GType glSyncMetaApiGetType()
fngstgl.types.GLTextureTarget glValueGetTextureTargetMask(gobject.value.Value value)See [gstgl.global.glValueSetTextureTargetFromMask] for what entails a mask
fnbool glValueSetTextureTarget(gobject.value.Value value, gstgl.types.GLTextureTarget target)
fnbool glValueSetTextureTargetFromMask(gobject.value.Value value, gstgl.types.GLTextureTarget targetMask)A mask is a bitwise OR of (1 << target) where target is a valid #GstGLTextureTarget
fngstgl.types.GLSLVersion glVersionToGlslVersion(gstgl.types.GLAPI glApi, int maj, int min)
fnbool glVideoFormatSwizzle(gstvideo.types.VideoFormat videoFormat, ref int[] swizzle)Calculates the swizzle indices for videoformat and glformat in order to access a texture such that accessing a texel from a texture through the swizzle index produces values in the order (R, G, B, ...
fnbool glslStringGetVersionProfile(string s, out gstgl.types.GLSLVersion version_, out gstgl.types.GLSLProfile profile)Note: this function first searches the first 1 kilobytes for a `#version` preprocessor directive and then executes [gstgl.global.glslVersionProfileFromString].
fnbool isGlBaseMemory(gst.memory.Memory mem)
fnbool isGlBuffer(gst.memory.Memory mem)
fnbool isGlMemory(gst.memory.Memory mem)
fnbool isGlMemoryPbo(gst.memory.Memory mem)
fnbool isGlRenderbuffer(gst.memory.Memory mem)