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p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div>Thanks. Does this mean that it depends on whether the header extension needs to get some input from the application and/or pass something back to the application? <br></div><div><br></div><div>Regards,<br></div><div>Serhan</div><div id="sig67116920"><div class="signature"><br></div><div>On Sun, Feb 12, 2023, at 2:49 AM, Matthew Waters wrote:<br></div></div><blockquote type="cite" id="qt" style=""><div>The answer for what an implementation wants depends on if the header
extension requires any changes to any of the caps or whether it can
use the default implementation.<br></div><div> <br></div><div> There is no hard rule for how the caps mapping to rtp header
extension works.<br></div><div> <br></div><div> Cheers<br></div><div> -Matt<br></div><div><br></div><div class="qt-moz-cite-prefix">On 11/2/23 02:35, Serhan Gül via
gstreamer-devel wrote:<br></div><blockquote type="cite" cite="mid:9822a00c-41d8-455a-89df-a4f174926b77@app.fastmail.com"><div>Hi,<br></div><div><br></div><div>I'm writing a custom header extension
using GstRTPHeaderExtensionClass. Checking the implementations
of the existing header extension implementations in GStreamer, I
noticed that there are differences in the used API methods to
update the payloader/depayloader caps. For example.
rtphdrextcolorspace uses
gst_rtp_header_extension_set_non_rtp_sink_caps to pass the
payloader's sink caps to the extension and
gst_rtp_header_extension_update_non_rtp_src_caps to update the
deployader's src caps. However, rtphdrextclientaudiolevel and
rtphdrextmid use
gst_rtp_header_extension_set_caps_from_attributes. Finally,
rtphdrextstreamid uses none of the above methods; so it seems
like it does not set any caps.<br></div><div><br></div><div>So I have two questions:<br></div><div>1. What is the difference between using these methods? <br></div><div>2. Why does rtphdrextstreamid not use any of them?<br></div><div><br></div><div>Thanks!<br></div><div><br></div><div id="qt-sig67116920"><div class="qt-signature">Best regards,<br></div><div class="qt-signature">Serhan<br></div><div class="qt-signature"><br></div></div><div><br></div></blockquote><div><br></div><div><br></div><div><b>Attachments:</b><br></div><ul><li>OpenPGP_signature<br></li></ul></blockquote><div><br></div></body></html>