<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello Jack<div class=""><br class=""></div><div class="">I don’t know your exact use case, but if you are looking for a way to generate noise you may want to take a look at audiotestsrc. It as a few noise models you might find useful:</div><div class=""><br class=""></div><div class=""><div class=""> wave : Oscillator waveform</div><div class=""> flags: readable, writable, controllable</div><div class=""> Enum "GstAudioTestSrcWave" Default: 0, "sine"</div><div class=""> (0): sine - Sine</div><div class=""> (1): square - Square</div><div class=""> (2): saw - Saw</div><div class=""> (3): triangle - Triangle</div><div class=""> (4): silence - Silence</div><div class=""><b class=""> (5): white-noise - White uniform noise</b></div><div class=""><b class=""> (6): pink-noise - Pink noise</b></div><div class=""> (7): sine-table - Sine table</div><div class=""> (8): ticks - Periodic Ticks</div><div class=""><b class=""> (9): gaussian-noise - White Gaussian noise</b></div><div class=""><b class=""> (10): red-noise - Red (brownian) noise</b></div><div class=""><b class=""> (11): blue-noise - Blue noise</b></div><div class=""><b class=""> (12): violet-noise - Violet noise</b></div><div><br class=""></div><div>Michael</div><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 16, 2020, at 13:20, Tim Müller <<a href="mailto:tim@centricular.com" class="">tim@centricular.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi,<br class=""><br class=""><blockquote type="cite" class="">I'm not an expert in uridecodebin, but from the tests I've<br class="">just made it doesn't appear to be possible<br class=""></blockquote><br class="">That's right.<br class=""><br class="">Decodebin needs to be able to "typefind" a stream, and it will then try<br class="">and plug the right parsers/decoders for the format the file is in.<br class=""><br class="">You want to do the exact opposite, so decodebin is not really suitable<br class="">for this use case, and I'm not sure what it would buy you here either.<br class=""><br class="">Cheers<br class=""> Tim<br class=""><br class="">_______________________________________________<br class="">gstreamer-devel mailing list<br class=""><a href="mailto:gstreamer-devel@lists.freedesktop.org" class="">gstreamer-devel@lists.freedesktop.org</a><br class="">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel<br class=""></div></div></blockquote></div><br class=""></div></body></html>