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<div class=Section1>
<p class=MsoNormal><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class=MsoNormal><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">Thanks a million Edward. I still don’t really understand the
debug output, but a little of it went a long way. And in particular, thanks
for telling me how to get it to work with a pipeline in a program. <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">HINT IF YOU MISSED IT: Put the GST_DEBUG settings in an
environment variable. <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"> export GST_DEBUG=whatever <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"> unset GST_DEBUG # to turn debug off<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">Just adding two more cents worth: I got to using gst_parse_launh()
because I never could get request pads to work. The example in the book is
good, but it skipped two important points. So for future warriors: <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoListParagraph style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span></b><![endif]><b><span style="font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:#1F497D">Put the code (inline or call) that links
the request pad right in line with the pipeline building process, before
changing the state to “PLAYING”. <br>
<br>
I never could quite figure out whether it had to come before or after the
pipeline was moved to GST_STATE_PLAYING and whether or not the request pads
were present before some signal was issued.<br>
<br>
<o:p></o:p></span></b></p>
<p class=MsoListParagraph style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span></b><![endif]><b><span style="font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:#1F497D">You’re going to want to use the same caps
over and over. Go ahead and codify a GstCaps and pass it around. Fill in as
many of the fields as you can so there is no question of incompleteness.<o:p></o:p></span></b></p>
<p class=MsoListParagraph><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">And in this particular case, the filesink goes to ASYNC until
new data arrives. Don’t gst_element_get_state( fildsink, NULL, NULL, -1 ). <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">Finally, a thought. I code in mangled C++ using mostly C syntax
for “G” functions in the methods and using friend functions for the callbacks.
The nature of the friend function beast is that the friend needs a pointer to its
class. For that reason, I keep most of my element, caps, etc vars as class
members, public if possible, so that I pass “this” to the friend functions as
the third gpointer arg. (FWIW, I always call the pointer in the functions “that”
just so it’s obvious what’s up). This way there are no global variables that
can interfere with other code and I still get great access. <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D">Wes<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#1F497D"> <o:p></o:p></span></b></p>
<p class=MsoNormal><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Change-File-Locations-for-Container-Formats-that-Have-Headers-tp2283747p2287327.html">RE: Change File Locations for Container Formats that Have Headers</a><br>
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