GstBufferStraw

GstCheck.prototype.buffer_straw_get_buffer

function GstCheck.prototype.buffer_straw_get_buffer(bin: Gst.Element, pad: Gst.Pad): {
    // javascript wrapper for 'gst_buffer_straw_get_buffer'
}

Get one buffer from pad. Implemented via buffer probes. This function will block until the pipeline passes a buffer over pad, so for robust behavior in unit tests, you need to use check's timeout to fail out in the case that a buffer never arrives.

You must have previously called GstCheck.prototype.buffer_straw_start_pipeline on pipeline and pad.

GstCheck.prototype.buffer_straw_start_pipeline

function GstCheck.prototype.buffer_straw_start_pipeline(bin: Gst.Element, pad: Gst.Pad): {
    // javascript wrapper for 'gst_buffer_straw_start_pipeline'
}

Sets up a pipeline for buffer sucking. This will allow you to call GstCheck.prototype.buffer_straw_get_buffer to access buffers as they pass over pad.

This function is normally used in unit tests that want to verify that a particular element is outputting correct buffers. For example, you would make a pipeline via Gst.prototype.parse_launch, pull out the pad you want to monitor, then call GstCheck.prototype.buffer_straw_get_buffer to get the buffers that pass through pad. The pipeline will block until you have sucked off the buffers.

This function will set the state of bin to PLAYING; to clean up, be sure to call GstCheck.prototype.buffer_straw_stop_pipeline.

Note that you may not start two buffer straws at the same time. This function is intended for unit tests, not general API use. In fact it calls fail_if from libcheck, so you cannot use it outside unit tests.

GstCheck.prototype.buffer_straw_stop_pipeline

function GstCheck.prototype.buffer_straw_stop_pipeline(bin: Gst.Element, pad: Gst.Pad): {
    // javascript wrapper for 'gst_buffer_straw_stop_pipeline'
}

Set bin to Gst.State.NULL and release resource allocated in GstCheck.prototype.buffer_straw_start_pipeline.

You must have previously called GstCheck.prototype.buffer_straw_start_pipeline on pipeline and pad.