[PATCH v4 0/4] media: imx-jpeg: Fix some motion-jpeg decoding

ming.qian
2025-04-11T07:44:23Z

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(-)

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2.43.0-rc1