<div dir="ltr"><div><div>I'm not sure where I got this from but I thought with GStreamer versions 0.8 is less than 0.10, does that mean the threading feature was removed from newer versions? Why?<br><br></div>If I don't have the option of creating threads using the {} brackets then how can I spawn additional threads using gst-launch? I tried placing queues everywhere I could in the pipeline but this still did not solve the problem.<br>
<br></div>Thanks,<br>John<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, May 7, 2013 at 6:18 AM, Tim-Philipp Müller-2 [via GStreamer-devel] <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=4659819&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>></span> wrote:<br>
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On Tue, 2013-05-07 at 08:50 +0100, David Röthlisberger wrote:
</div><div class="im"><div><div class='shrinkable-quote'><br>> On 6 May 2013, at 21:50, John Westing wrote:
<br>> >
<br>> > I read the article and understand that the problem is likely an issue with threading, hence the reason for the {} brackets described in my first post: {} brackets in a gst-launch pipeline spawn an additional thread for the elements surrounded in the brackets. However, in my case when I use the {} brackets I get the GStreamer warning "Error during parsing: syntax error, unexpected $undefined" as described in my first post.
<br>>
<br>> Interesting, I didn't know that! Where is this documented? A Google
<br>> search for "gst-launch brackets thread" returns this man page:
<br>> <a href="http://linux.about.com/library/cmd/blcmdl1_gst-launch.htm" rel="nofollow" link="external" target="_blank">http://linux.about.com/library/cmd/blcmdl1_gst-launch.htm</a><br>>
<br>> which says:
<br>>
<br>> A group of elements surrounded by curly braces {, } will be executed
<br>> in a separate thread.
<br>>
<br>> However, it isn't clear what version of GStreamer the above corresponds
<br>> to. On my Ubuntu 12.10 system, neither the man page for gst-launch-0.10
<br>> nor gst-launch-1.0 contain this text (nor any mention of "{").
</div></div></div><div class="im">That { } syntax for a new thread is GStreamer 0.8 syntax. It doesn't do
<br>anything in 0.10.x or 1.x. It's probably best to ignore every document
<br>where you find these in a gst-launch context.
<br><br>Cheers
<br> -Tim
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