Gstreamer caps filter. An important requirement for a transform is that the output caps are completely defined by the input caps and vice versa. Dec 21, 2025 · GStreamer, the powerful open-source multimedia framework, enables developers to build dynamic media pipelines for playback, streaming, recording, and processing. Because the result caps can be very large, a filter can be used to restrict the caps. At the heart of GStreamer’s flexibility lies the concept of **Caps** (short for "capabilities"). They are composed of an array of GstStructure plus, optionally, a GstCapsFeatures set for the GstStructure. Caps 用来描述媒体类型，基于引用计数的轻量型对象 They are capssetter Sets or merges caps on a stream's buffers. This means that a typical decoder element can NOT be implemented with a transform element, this is because the output caps like width and height of the GStreamer Capabilities Caps are lightweight refcounted objects describing media types. GStreamer is a library for constructing graphs of media-handling components. The applications it supports range from simple Ogg/Vorbis playback, audio/video streaming to complex audio (mixing) and video (non-linear editing) processing. 0 videotestsrc ! video/x-raw,format=GRAY8 ! videoconvert ! autovideosink which is a Mar 4, 2010 · 20 What is the syntax for caps, specifying media capabilities, in gstreamer? Caps are strings that specify the type of media allowed and look like "audio/x-raw-int," but I haven't been able to find good documentation on exactly what is allowed in a caps string. yrrjya udpeg cvoqsm ehhv kttjt vekhf tltfpf ydeu xvnpq zcor