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From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 1/3] avcodec/tests/mjpegenc_huffman: Also test length counts
Date: Sun, 20 Apr 2025 23:49:39 +0200
Message-ID: <20250420214939.GJ4991@pb2> (raw)
In-Reply-To: <GV1P250MB07375ABB2BB05DDD01488B598FB22@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM>


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Hi

On Tue, Apr 15, 2025 at 02:52:34AM +0200, Andreas Rheinhardt wrote:
> Patches attached.
> I also tried to sort equal length codes in such a way that codes that
> start and end with 1 bits are paired with values that occur less
> frequently as suggested by Michael in
> https://ffmpeg.org/pipermail/ffmpeg-devel/2025-April/341917.html. Yet
> strangely this worsened compression (for the majority of the fate tests
> affected by it). The patch can be found here:
> https://github.com/mkver/FFmpeg/commits/mjpegenc_huffman/

Interresting, thanks for trying!

I guess teh default order is quite good already and avoiding the all one
element, which is already done



[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

it is not once nor twice but times without number that the same ideas make
their appearance in the world. -- Aristotle

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      parent reply	other threads:[~2025-04-20 21:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-15  0:52 Andreas Rheinhardt
2025-04-17 12:10 ` Andreas Rheinhardt
2025-04-20 21:49 ` Michael Niedermayer [this message]

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