- GstReserved
void*[18] GstReserved;
Undocumented in source.
- acceptCaps
int function(GstBaseTransform* trans, GstPadDirection direction, GstCaps* caps) acceptCaps;
- beforeTransform
void function(GstBaseTransform* trans, GstBuffer* buffer) beforeTransform;
- copyMetadata
int function(GstBaseTransform* trans, GstBuffer* input, GstBuffer* outbuf) copyMetadata;
- decideAllocation
int function(GstBaseTransform* trans, GstQuery* query) decideAllocation;
- filterMeta
int function(GstBaseTransform* trans, GstQuery* query, GType api, GstStructure* params) filterMeta;
- fixateCaps
GstCaps* function(GstBaseTransform* trans, GstPadDirection direction, GstCaps* caps, GstCaps* othercaps) fixateCaps;
- generateOutput
GstFlowReturn function(GstBaseTransform* trans, GstBuffer** outbuf) generateOutput;
- getUnitSize
int function(GstBaseTransform* trans, GstCaps* caps, size_t* size) getUnitSize;
- parentClass
GstElementClass parentClass;
- passthroughOnSameCaps
bool passthroughOnSameCaps;
If set to %TRUE, passthrough mode will be
automatically enabled if the caps are the same.
Set to %FALSE by default.
- prepareOutputBuffer
GstFlowReturn function(GstBaseTransform* trans, GstBuffer* input, GstBuffer** outbuf) prepareOutputBuffer;
- proposeAllocation
int function(GstBaseTransform* trans, GstQuery* decideQuery, GstQuery* query) proposeAllocation;
- query
int function(GstBaseTransform* trans, GstPadDirection direction, GstQuery* query) query;
- setCaps
int function(GstBaseTransform* trans, GstCaps* incaps, GstCaps* outcaps) setCaps;
- sinkEvent
int function(GstBaseTransform* trans, GstEvent* event) sinkEvent;
- srcEvent
int function(GstBaseTransform* trans, GstEvent* event) srcEvent;
- start
int function(GstBaseTransform* trans) start;
- stop
int function(GstBaseTransform* trans) stop;
- submitInputBuffer
GstFlowReturn function(GstBaseTransform* trans, int isDiscont, GstBuffer* input) submitInputBuffer;
- transform
GstFlowReturn function(GstBaseTransform* trans, GstBuffer* inbuf, GstBuffer* outbuf) transform;
- transformCaps
GstCaps* function(GstBaseTransform* trans, GstPadDirection direction, GstCaps* caps, GstCaps* filter) transformCaps;
- transformIp
GstFlowReturn function(GstBaseTransform* trans, GstBuffer* buf) transformIp;
- transformIpOnPassthrough
bool transformIpOnPassthrough;
If set to %TRUE, @transform_ip will be called in
passthrough mode. The passed buffer might not be
writable. When %FALSE, neither @transform nor
@transform_ip will be called in passthrough mode.
Set to %TRUE by default.
- transformMeta
int function(GstBaseTransform* trans, GstBuffer* outbuf, GstMeta* meta, GstBuffer* inbuf) transformMeta;
- transformSize
int function(GstBaseTransform* trans, GstPadDirection direction, GstCaps* caps, size_t size, GstCaps* othercaps, size_t* othersize) transformSize;
Subclasses can override any of the available virtual methods or not, as needed. At minimum either @transform or @transform_ip need to be overridden. If the element can overwrite the input data with the results (data is of the same type and quantity) it should provide @transform_ip.