[x264-devel] bug report

[Attila József]

This issue has been fixed. (f9af2a0f
<https://code.videolan.org/videolan/x264/commit/f9af2a0f71d0fca7c1cafa7657f03a302da0ca1c>)


Now, all devices are working properly as before.

Thank you.

Henrik Gramner <henrik at gramner.com> ezt írta (időpont: 2019. jún. 24., H,
17:36):

> On Mon, Jun 24, 2019 at 5:07 PM Attila József <user1894 at gmail.com> wrote:
> >
> > Hi.
> >
> > I want to report an interesting bug.
> >
> > I use ffmpeg with x264 lib for lot of tasks. Nowadays, i realize that
> some encoded video is not playable on some set-top boxes anymore. I
> started  lokking for the error. After lot of compilling, and testing, i
> found exactly one commit, that related to this problem. Before that commit,
> encoded video works perfectly on every device. After this, only with
> baseline profile, and/or with interlaced fields.
> >
> > the commit:
> > ----
> > 92d36908cbafd2a6edf7e61d69f341027b57f6f8
> >
> > Author: Yusuke Nakamura <muken.the.vfrmaniac at gmail.com>
> > Date:   Mon Apr 9 11:01:28 2018 +0900
> >
> >     Signal Progressive and Constrained profiles
> >
> >     Progressive High, Constrained High, and Progressive High 10.
> >
> >     Even in Main profile, constraint_set4_flag is now set to 1 if
> progressive,
> >     and constraint_set5_flag is set to 1 if no B-slices are present.
> > ----
> >
> > According to my experiences, many amiko boxes affected to this problem,
> like:
> > amiko mini hd
> > amiko 8140c se
> > amiko 8142 twin c
> > amiko impulse
> > Amiko Mini HD265
> >
> > Please help me.
>
> It's an issue with your decoder(s) as they fail if one of the
> previously reserved bits is now 1 instead of 0 which they really
> should be ignoring, so you should probably send a bug report to the
> manufacturer.
>
> It seems there are a few different devices with the same issue though,
> so maybe we should just revert this change since I don't have much
> faith in decoder manufactures fixing bugs, especially for older
> products.
> _______________________________________________
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> x264-devel at videolan.org
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>
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