Hi Hans,
Please refer to Page 132, 'Video stream data format – ASPEED mode compression' of
https://github.com/AspeedTech-BMC/openbmc/releases/download/v07.02/SDK_User_Guide_v07.02.pdf
Is above information enough??
Or maybe we can postpone this series until the source code for this format ready.
I think I can accomplish it by the end of this year.
On 2021/11/25 下午 10:31, Hans Verkuil wrote:
Hi Jammy,
I suggest posting a v3 that moves the patches that deal with the
Aspeed JPEG format to the end of the series. That way I can easily
merge the patches up to that point, and the Aspeed JPEG support can
be handled separately.
I'm not sure if it can be merged without that format being documented,
either in pixfmt-reserved.rst, by implementing support for it in
libv4lconvert from v4l-utils, or by providing a URL to some other
publicly available source code. We really don't like adding pixel
formats that cannot be interpreted by someone without access to the
datasheets.
Regards,
Hans
On 18/11/2021 08:40, Jammy Huang wrote:
The aim of this series is to add aspeed-jpeg support for aspeed-video
driver.
To achieve this major goal some refactors are included.
In the last, debugfs information is also updated per this change.
Changes in v5:
- Use model data to tell different soc
Changes in v4:
- Add definition for the Aspeed JPEG format
- Reserve controls for ASPEED
- Use s_fmt to update format rather than new control
- Update aspeed hq quality range, 1 ~ 12
Jammy Huang (10):
media: aspeed: move err-handling together to the bottom
media: aspeed: use v4l2_info/v4l2_warn/v4l2_dbg for log
media: aspeed: add more debug log messages
media: aspeed: refactor to gather format/compress settings
media: v4l: Add definition for the Aspeed JPEG format
media: v4l2-ctrls: Reserve controls for ASPEED
media: aspeed: use model-data
media: aspeed: Support aspeed mode to reduce compressed data
media: aspeed: add comments and macro
media: aspeed: Extend debug message
.../media/uapi/v4l/pixfmt-reserved.rst | 12 +
drivers/media/platform/aspeed-video.c | 534 ++++++++++++++----
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/aspeed-video.h | 15 +
include/uapi/linux/v4l2-controls.h | 5 +
include/uapi/linux/videodev2.h | 1 +
6 files changed, 467 insertions(+), 101 deletions(-)
create mode 100644 include/uapi/linux/aspeed-video.h
--
Best Regards
Jammy
