From: Le Bao Tin Ha <lebaotin.ha@savoirfairelinux.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] Request for assistance with adding new pixel format (NV12_8L128) in FFmpeg
Date: Wed, 8 Feb 2023 04:47:32 -0500 (EST)
Message-ID: <1957336886.510777.1675849652034.JavaMail.zimbra@savoirfairelinux.com> (raw)
In-Reply-To: <CAK+ULv6KBtVLLLTaeX6qk3UR63LA-dQWb23f5A_jkFtJQGG8fw@mail.gmail.com>
Hello, you can found the explanation here:
https://docs.kernel.org/userspace-api/media/v4l/pixfmt-yuv-planar.html
"V4L2_PIX_FMT_NV12M_8L128 is similar to V4L2_PIX_FMT_NV12M but stores pixels in 2D 8x128 tiles, and stores tiles linearly in memory. The image height must be aligned to a multiple of 128. The layouts of the luma and chroma planes are identical.
V4L2_PIX_FMT_NV12_8L128 is similar to V4L2_PIX_FMT_NV12M_8L128 but stores two planes in one memory."
----- Original Message -----
From: "Kieran Kunhya" <kierank@obe.tv>
To: "FFmpeg development discussions and patches" <ffmpeg-devel@ffmpeg.org>
Sent: Monday, February 6, 2023 7:15:22 PM
Subject: Re: [FFmpeg-devel] Request for assistance with adding new pixel format (NV12_8L128) in FFmpeg
On Mon, 6 Feb 2023 at 15:43, Le Bao Tin Ha <lebaotin.ha@savoirfairelinux.com>
wrote:
> I hope this email finds you well. I am currently working on the Toradex
> Apalis iMX8QM board and I am trying to perform a hardware decode using the
> Amphion driver with ffmpeg h264_v4l2m2m codec. The decoder outputs a pixel
> format (NV12_8L128, a linear 8x128 NV12 based tiles) that is not supported
> yet by FFmpeg.
>
Hello,
Are you able to provide more information about this nonstandard pixel
format?
Kieran
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next prev parent reply other threads:[~2023-02-08 9:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 15:43 Le Bao Tin Ha
2023-02-06 18:15 ` Kieran Kunhya
2023-02-08 9:47 ` Le Bao Tin Ha [this message]
2023-02-08 13:07 ` Jean-Baptiste Kempf
2023-02-08 13:17 ` Hendrik Leppkes
2023-02-08 14:27 ` Devin Heitmueller
2023-02-08 17:38 ` Rémi Denis-Courmont
2023-02-08 18:11 ` Devin Heitmueller
2023-02-09 0:00 ` Philip Langdale
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