thanks , exactly what I have been missing :)<br><br>
<div><span class="gmail_quote">On 2/13/06, <b class="gmail_sendername">Tuukka Toivonen</b> <<a href="mailto:tuukkat@ee.oulu.fi">tuukkat@ee.oulu.fi</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Mon, 13 Feb 2006 <a href="mailto:shauli.rozen@gmail.com">shauli.rozen@gmail.com</a> wrote:<br><br>>I realize that IDR frames are very important to synchronizing .
<br>>but , is there any thing different in the way they are coded against regular<br>>I frame.<br>>in a regular I frame , all the blocks are still coded as Intra right?<br><br>Yes, but<br><br>P frame after an I frame might have motion vectors pointing to frames
<br>before the I frame, so you can't seek to I frame and continue<br>decoding happily as you don't then have the frames before the I frame.<br><br>IDR frame "breaks" the stream, ensuring that later frames don't<br>
point to frames before the IDR frame. So, you need IDR frames<br>to seek to.<br><br>That's how I understand things...<br><br>--<br>This is the x264-devel mailing-list<br>To unsubscribe, go to: <a href="http://developers.videolan.org/lists.html">
http://developers.videolan.org/lists.html</a><br><br></blockquote></div><br>