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[v3,0/4] media: imx-jpeg: Fix some motion-jpeg decoding issues

Message ID 20250408025725.1244-1-ming.qian@oss.nxp.com (mailing list archive)
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Series media: imx-jpeg: Fix some motion-jpeg decoding issues | expand

Message

Ming Qian(OSS) April 8, 2025, 2:57 a.m. UTC 
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    | 119 +++++++++++++-----
 .../media/platform/nxp/imx-jpeg/mxc-jpeg.h    |   5 +
 3 files changed, 96 insertions(+), 29 deletions(-)