[x264-devel] rbsp_alignemnt_zero_bit

[Pascal Massimino]

Hi

On Tue, Jul 30, 2013 at 8:11 AM, Lior Bahr <leeor1 at gmail.com> wrote:

> Hi everyone, this is my first post here.
>
> I might have found a bug (with the great help of Ron aka drmpeg) that puts
> a ‘1’ in the alignment zero bits, where only ‘0’ is allowed.
>
> This is the error message from the Tektronix Cerify decoder, which repeats
> itself for most frames:
> Incorrect rbsp_alignment_zero_bit
> rbsp_alignment_zero_bit = 1 (0x1), at position 0x16f9e (dec. 94110), bit
> 0. Only allowable value is 0 (0x0).
>
> Please see the full discussion here:
> http://forum.doom9.org/showthread.php?t=168298
>
> So, what do you think of this? is it really a bug? and if so, can it be
> fixed?
>

more likely watermarking, and has been reported several times:

http://mailman.videolan.org/pipermail/x264-devel/2009-March/005754.html
sometimes with patch:
http://mailman.videolan.org/pipermail/x264-devel/2011-December/008950.html


> I understand that this is probably nothing that will affect decoding,
> however I'd really like to use x264 instead of other inferior encoders, and
> it would be great to have a clean report from QC systems.
>
> Thanks!
>
> leo
>
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>
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