[x264-devel] start code "00 00 00 01 65" and "00 00 00 01 45"

[alexander tian]

Hi, jp_liu

The "nal_ref_idc" in the "NAL unit" only interpret that some nal unit should
be 0 and some should not be 0. But it not interpret what's the value for the
IDR. So the two file all are right. You can understand the means from the
specification.

I think your decoder has some bugs. In addition, you should test h.264 file
by JM which is reference software.

Best wishes
Alexander Tian



在07-11-8，xiejun06 <xiejun06 at mails.thu.edu.cn> 写道：
>
>  I try the file, it can be decoded by JM. And the difference of two file
> is the value of nal_ref_idc of the nal unite, it will not effect the
> decoder, I think.
>
>  ------------------------------
>  xiejun06
> 2007-11-08
>  ------------------------------
>  *发件人：* jp_liu
> *发送时间：* 2007-11-08 17:50:34
> *收件人：* x264-devel
> *抄送：*
> *主题：* [x264-devel] start code "00 00 00 01 65" and "00 00 00 01 45"
>
>  x264-devel,hi
>
> I use two h264 encoders encode a video file, use almost the same profile,
> baseline and level3.0.
> But one of the output files like this:
> "00 00 00 01 67 .....
>  00 00 00 01 68 .....
>  00 00 00 01 06 .....
>  00 00 00 01 45 .....
>  00 00 00 01 45 .....
>  00 00 00 01 06 .....
>  00 00 00 01 41 ....."
>
> And another one like this:
>  "00 00 00 01 67 .....
>  00 00 00 01 68 .....
>  00 00 00 01 06 .....
>  00 00 00 01 65 .....
>  00 00 00 01 65 .....
>  00 00 00 01 06 .....
>  00 00 00 01 41 ....."
>
> The strange thing is my stb decoder only can decode the first one, if
> decoder the second file, it complain that
> "The framesDropped reason is : unsupported parameter!
> The framesDropped reason is : corrupted header!"
>
> Can any expert explain it for me, Thanks very much!
>
>  jp_liu，jp_liu at astrocom.cn<%3C%21--AID_FROMADDRESS_BEGIN--%3Ejp_liu at astrocom.cn%3C%21--AID_FROMADDRESS_END--%3E>
> 2007-11-08
>
> _______________________________________________
> x264-devel mailing list
> x264-devel at videolan.org
> http://mailman.videolan.org/listinfo/x264-devel
>
>
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