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From: Timo Rothenpieler <timo@rothenpieler.org>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH 8/9] avcodec/nvenc: use encoder level options for qmin/qmax
Date: Fri, 31 Jan 2025 14:20:33 +0100
Message-ID: <4975f606-950a-49f7-88c3-dd6f8e8aad94@rothenpieler.org> (raw)
In-Reply-To: <tencent_2034893E25578D9DD0E1D65A0034B7801C09@qq.com>

On 31/01/2025 07:16, Zhao Zhili wrote:
> 
> 
>> On Jan 31, 2025, at 03:40, Timo Rothenpieler <timo@rothenpieler.org> wrote:
>>
>> AV1 uses a vastly different range than what the global options permit,
>> and also for the other codecs the range of the global options is at
>> least misaligned.
> 
> It ’s simpler to update qmin upper threshold than add qmin/qmax for each encoder.
> And there is no mismatch issue between global options and local options.

The three nvenc encoders already have different ranges on those values.
And making the range of the global parameters biggers might have 
implications on other things using them, which now might get values that 
are out of range. So that'd need to be checked individually in every 
encoder now.
So I'm not sure if it's really less or even more work to go that route.
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  reply	other threads:[~2025-01-31 13:20 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-30 19:40 [FFmpeg-devel] [PATCH 0/9] Nvidia Video Codec SDK 13.0 support Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 1/9] avutil/hwcontext_cuda: add 4:2:2 pixel format support Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 2/9] avcodec/nvdec: add 4:2:2 decoding and 10-bit support Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 3/9] avcodec/cuviddec: add HEVC/H.264 4:2:2 and H.264 " Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 4/9] avcodec/nvenc: add 4:2:2 encoding " Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 5/9] avcodec/nvenc: add UHQ to AV1 for NVENC Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 6/9] avcodec/nvenc: add Temporal Filtering for AV1 and H.264 in NVENC Timo Rothenpieler
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 7/9] avcodec/nvenc: add MV-HEVC encoding support Timo Rothenpieler
2025-01-30 20:17   ` James Almer
2025-01-30 23:23   ` [FFmpeg-devel] [PATCH v2 " Timo Rothenpieler
2025-01-31  3:26     ` James Almer
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 8/9] avcodec/nvenc: use encoder level options for qmin/qmax Timo Rothenpieler
2025-01-31  6:16   ` Zhao Zhili
2025-01-31 13:20     ` Timo Rothenpieler [this message]
2025-01-30 19:40 ` [FFmpeg-devel] [PATCH 9/9] avcodec/nvenc: finalize SDK 13.0 support Timo Rothenpieler
2025-02-01 21:15 ` [FFmpeg-devel] [PATCH 0/9] Nvidia Video Codec " Timo Rothenpieler
2025-02-02 19:05   ` Timo Rothenpieler

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