<html><head></head><body bgcolor="#FFFFFF"><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">On Nov 30, 2011, at 6:12, "Basha, Asif" <<a href="mailto:Asif.Basha@Honeywell.com">Asif.Basha@Honeywell.com</a>> wrote:</span><br></div><div><br></div><div></div><blockquote type="cite"><div><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;}
/* 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-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
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]--><div class="WordSection1"><p class="MsoNormal">Hi,<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal" style="text-autospace:none"> I am facing problem while decoding H264 first Frame(I Frame) by using FFMPEG avcodec_decode_video() If avcodec_decode_video() called twice then it’s working fine. Can you please suggest me regarding this issue. </p></div></div></blockquote><blockquote type="cite"><div><div class="WordSection1"><p class="MsoNormal" style="text-autospace:none"><o:p></o:p></p><p class="MsoNormal" style="text-autospace:none"><o:p> </o:p></p><p class="MsoNormal" style="text-autospace:none">Regards,<o:p></o:p></p><p class="MsoNormal" style="text-autospace:none">Asif</p></div></div></blockquote><br><div>Asif, since ffmpeg now uses multi threading, there's a one 'frame' delay in delivering frames. This impacts the start of playback, where the first decode won't return a frame (it starts decoding on one or more threads), and the end of a file, where you need to keep decoding a few times to flush frames out. </div><div><br></div><div>That may be what you're seeing. It's 'normal'. </div><div><br></div><div>Bruce </div></body></html>