<div dir="ltr"><div>The doc states the following:</div><div><br></div><div>"If the <a href="https://gstreamer.freedesktop.org/documentation/multifile/multifilesink.html#multifilesink:post-messages">post-messages</a> property is <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS">TRUE</a>, it sends an application
message named <code>GstMultiFileSink</code> after writing each buffer.</div><div><p>The message's structure contains these fields:</p>
<ul><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> *<code>filename</code>: the filename where the buffer was written.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>index</code>: index of the buffer.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>timestamp</code>: the timestamp of the buffer.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>stream-time</code>: the stream time of the buffer.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> running-time`: the running_time of the buffer.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>duration</code>: the duration of the buffer.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>offset</code>: the offset of the buffer that triggered the message.</li><li>
<a href="https://docs.python.org/3/library/functions.html#int">int</a> <code>offset-end</code>: the offset-end of the buffer that triggered the message"<br></li></ul></div><div>Source: <a href="https://gstreamer.freedesktop.org/documentation/multifile/multifilesink.html?gi-language=python#properties">https://gstreamer.freedesktop.org/documentation/multifile/multifilesink.html?gi-language=python#properties</a></div><div><br></div><div>But when my pipeline runs, the message I see on the bus is Gst.MessageType.ELEMENT with the message.src set to a GstMultiFileSink.</div><div><br></div><div>Where can I get the application specific data? I need a callback after every capture file is written via multifilesink.</div><div><br></div><div>Thanks!<br></div><div><br></div><div>-aps<br></div></div>