linux-kernel - Re:[PATCH 00/12] media: rkvdec: Add support for VDPU381 and VDPU383

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Message-ID: <20250713142514.56742-1-liujianfeng1994@gmail.com>
Date: Sun, 13 Jul 2025 22:25:14 +0800
From: Jianfeng Liu <liujianfeng1994@...il.com>
To: detlev.casanova@...labora.com
Cc: heiko@...ech.de,
	kernel@...labora.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	mchehab@...nel.org,
	nicolas.dufresne@...labora.com,
	nicolas.frattaroli@...labora.com
Subject: Re:[PATCH 00/12] media: rkvdec: Add support for VDPU381 and VDPU383

Hi,

On Tue,  8 Jul 2025 11:19:33 -0400, Detlev Casanova wrote:
>As there is a considerable part of the code that can be shared with the
>already supported rkvdec decoder driver, the support for these variants
>is added here rather than writing a new driver.

I have tested the new series on rk3588 and rk3399 with chromium. Since the
HEVC decoder need EXT_SPS_RPS related patches, I ony test the H264 decoder.
There are two issues:

1, The decoder max size is detected 1920x1088, which should be the fallback
size when queryig VIDIOC_ENUM_FRAMESIZES[1].

2, Playing H264 videos ends up with green screen.

These above issues don't happen with the old rkvdec2 series.

[1] https://github.com/chromium/chromium/blob/138.0.7204.92/media/gpu/v4l2/v4l2_utils.cc#L520-L533

Best regards,
Jianfeng