gst_pad_get_peer can be used to check what the pad is linked to. Before dataflow is possible on the pads, they need to be activated with gst_pad_set_active. gst_pad_query and gst_pad_peer_query can be used to query various properties of the pad and the stream. To send a Gst...
if (GST_PAD_PEER (srcpad) != NULL) { GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "pad %s:%s is already linked to %s:%s", GST_DEBUG_PAD_NAME (srcpad), GST_DEBUG_PAD_NAME (GST_PAD_PEER (srcpad))); /* already linked request pads look like static pads, so the request pad * was ...
在安防软件开发领域中通常涉及摄像头拉流，转封，解码播放3个环节甚至涉及后端视频识别，推流到web端各个...
Arabidopsis immunity regulator EDS1 in a PAD4/SAG101-unbound form is a monomer with an inherently inactive conformation Characterization of specifically metal-binding phage clones for selective recovery of cobalt and nickel Controlled manipulation of enzyme specificity through immobilization-induced flexibility...
A new dynamic pad can be created using gst_element_request_pad with a GstPadTemplate. An iterator of all pads can be retrieved with gst_element_iterate_pads. Elements can be linked through their pads. If the link is straightforward, use the gst_element_link convenience function to link two...
- pad: gst_pad_get_single_internal_link() is a new convenience function to return the single internal link of a pad, which is useful e.g. to retrieve the output pad of a new multiqueue request pad. - datetime: Add constructors to create datetimes with timestamps in microsecond...
C语言 filesink是否将GstMeta存储到文件中？Meta不会通过文件链接保存到磁盘。以下是一些备选方案：
not-linked flow error, or the pipeline will preroll if there's a sink, but then you'll lose data if you replace the sink with some other element). This means you don't rely on things like pipeline pausing, but you do everything in signal callbacks like new-decoded-pad, ...
g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), this); /* note that the demuxer will be linked to the decoder dynamically. The reason is that Ogg may contain various streams (for example audio and video). The source pad(s) will be created at ...
The DACxx62 devices incorporate a power-on-reset circuit that ensures the DAC output powers up and remains at zero scale until a valid code is written to the device, whereas the DACxx63 devices similarly power up at mid-scale. These devices contain a power-down feature that reduces current...