unixfdsink
Send file-descriptor backed buffers (e.g. memfd, dmabuf) over unix socket to matching unixfdsrc. There can be any number of clients, if none are connected buffers are dropped.
Buffers can have any number of GstMemory, but it is an error if any one of them lacks a file-descriptor.
GstShmAllocator is added into the allocation proposition, which makes most sources write their data into shared memory automatically.
Example launch lines
gst-launch-1.0 -v videotestsrc ! unixfdsink socket-path=/tmp/blah
gst-launch-1.0 -v unixfdsrc socket-path=/tmp/blah ! autovideosink
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseSink ╰──unixfdsink
Factory details
Authors: – Xavier Claessens
Classification: – Sink
Rank – none
Plugin – unixfd
Package – GStreamer Bad Plug-ins
Pad Templates
Properties
min-memory-size
“min-memory-size” gint64
Minimum size to allocate in the case a copy into shared memory is needed. Memories are kept in a pool and reused when possible.
A value of 0 (the default) means only the needed size is allocated which reduces the possibility of reusing the memory in the case not all buffers need the same size.
A negative value disables copying and the pipeline will stop with an error in the case a copy into shared memory is needed.
Flags : Read / Write / Construct
Default value : 0
Since : 1.28
socket-path
“socket-path” gchararray
The path to the control socket used to control the shared memory transport. This may be modified during the NULL->READY transition
Flags : Read / Write
Default value : NULL
socket-type
“socket-type” GUnixSocketAddressType *
The type of underlying socket
Flags : Read / Write / Construct
Default value : path (2)
wait-for-connection
“wait-for-connection” gboolean
Block the stream until a least one client is connected.
Flags : Read / Write / Construct
Default value : false
Since : 1.26
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