From: ming.qian@oss.nxp.com
To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl, mirela.rabulea@oss.nxp.com
Cc: shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com, xiahong.bao@nxp.com,
eagle.zhou@nxp.com, linux-imx@nxp.com, imx@lists.linux.dev,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/4] media: imx-jpeg: Fix some motion-jpeg decoding
Date: Fri, 11 Apr 2025 15:43:39 +0800 [thread overview]
Message-ID: <20250411074347.809-1-ming.qian@oss.nxp.com> (raw)
From: Ming Qian <ming.qian@oss.nxp.com>
To support decoding motion-jpeg without DHT, driver will try to decode a
pattern jpeg before actual jpeg frame by use of linked descriptors
(This is called "repeat mode"), then the DHT in the pattern jpeg can be
used for decoding the motion-jpeg.
But there is some hardware limitation in the repeat mode, that may cause
corruption or decoding timeout.
Try to make workaround for these limitation in this patchset.
Ming Qian (4):
media: imx-jpeg: Move mxc_jpeg_free_slot_data() ahead
media: imx-jpeg: Cleanup after an allocation error
media: imx-jpeg: Change the pattern size to 128x64
media: imx-jpeg: Check decoding is ongoing for motion-jpeg
.../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h | 1 +
.../media/platform/nxp/imx-jpeg/mxc-jpeg.c | 120 +++++++++++++-----
.../media/platform/nxp/imx-jpeg/mxc-jpeg.h | 5 +
3 files changed, 97 insertions(+), 29 deletions(-)
--
2.43.0-rc1
next reply other threads:[~2025-04-11 7:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-11 7:43 ming.qian [this message]
2025-04-11 7:43 ` [PATCH v4 1/4] media: imx-jpeg: Move mxc_jpeg_free_slot_data() ahead ming.qian
2025-04-11 14:36 ` Frank Li
2025-04-11 18:47 ` Nicolas Dufresne
2025-04-11 7:43 ` [PATCH v4 2/4] media: imx-jpeg: Cleanup after an allocation error ming.qian
2025-04-11 7:43 ` [PATCH v4 3/4] media: imx-jpeg: Change the pattern size to 128x64 ming.qian
2025-04-11 7:43 ` [PATCH v4 4/4] media: imx-jpeg: Check decoding is ongoing for motion-jpeg ming.qian
2025-04-11 14:38 ` Frank Li
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