<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:70.85pt 70.85pt 56.7pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
-->
</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Haven’t looked at this yet, but will likely be doing this in the coming months. If you find a solution, post it up here.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Randy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;
font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;
font-family:"Tahoma","sans-serif""> gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org]
<b>On Behalf Of </b>Thornton, Keith<br>
<b>Sent:</b> Friday, January 23, 2015 9:51 AM<br>
<b>To:</b> gstreamer-devel@lists.freedesktop.org<br>
<b>Subject:</b> re-ordering timestamps GstVideoDecoder<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">Hi,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">I have a decoder plugin which makes use of the Intel QuickSync decoder under Windows 7 /64 bit. The Frames arrive from the GstVideoDecoder base class
in DTS frame order.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">The QuickSync decoder re-orders the output frames and returns them in PTS order. When these frames are returned to the base class via gst_decoder_finish_frame,
some frames are discarded with a warning “decreasing timestamp” This appears to be because the PTS timestamp in the frame is older than the most current PTS timestamp passed from the base class to my decoder.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">In the source code there is a comment that re-ordering is a TODO. It is also written that the derived class is responsible for setting the PTS correctly
before calling gst_decoder_finish_frame.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">Has anyone else encountered this problem and has found a solution.?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif"">Thanks in advance for any comments.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.0pt;
font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
</body>
</html>