Mailing List Archive: MythTV: Dev

/libavcodec/i386/mmx.h compiler warnings

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mythtv at dsl

Nov 9, 2008, 8:03 AM

Post #1 of 3 (1091 views)
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/libavcodec/i386/mmx.h compiler warnings

I'm getting lots of these warnings after the last ffmpeg resync. Is it
something that needs to be fixed?

../../libs/libavcodec/i386/mmx.h:24:2: warning: #warning Everything in
this header is deprecated, use plain asm()! New code using this header
will be rejected.

Paul H.
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nigel at ind

Nov 9, 2008, 3:34 PM

Post #2 of 3 (979 views)
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Re: /libavcodec/i386/mmx.h compiler warnings [In reply to]

> Is it something that needs to be fixed?

Not really, but we could just remove
the warning line in the file.

If/when FFmpeg removes it from their SVN,
we will probably just keep our (old) copy
in libs/libavcodec/i386

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Nigel Pearson, nigel [at] ind|
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janne-mythtv at grunau

Nov 10, 2008, 12:04 PM

Post #3 of 3 (973 views)
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Re: /libavcodec/i386/mmx.h compiler warnings [In reply to]

On Monday 10 November 2008 00:34:41 Nigel Pearson wrote:
> > Is it something that needs to be fixed?
>
> Not really, but we could just remove
> the warning line in the file.
>
> If/when FFmpeg removes it from their SVN,
> we will probably just keep our (old) copy
> in libs/libavcodec/i386

it doesn't look like if it will be removed anytime soon but when it is
the case we should move it somewhere else.

I haven't checked how much of the mmx defines we are actually using (it
is included mainly in filters and osd blending in libmythtv). If it is
only marginally used I tend to agree that plain asm would be cleaner. If
they are used extensively it's probably not worth the effort of replaing
it.

Janne
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