Hi Jacek,
What is the status of this? It would be really useful to have a working plugin
as an example in v4l-utils.
Regards,
Hans
On 02/26/2015 04:59 PM, Jacek Anaszewski wrote:
> This is a fifth version of the patch series adding a plugin for the
> Exynos4 camera.
>
> Temporarily the plugin doesn't link against libmediactl, but
> has its sources compiled in. Currently utils are built after
> the plugins, but libv4l-exynos4-camera plugin depends on the utils.
> In order to link the plugin against libmediactl the build system
> would have to be modified.
>
> ================
> Changes from v4:
> ================
>
> - removed some redundant functions for traversing media device graph
> and switched over to using existing ones
> - avoided accessing struct v4l2_subdev from libmediactl
> - applied various improvements
>
> ================
> Changes from v3:
> ================
>
> - added struct v4l2_subdev and put entity fd and
> information about supported controls to it
> - improved functions for negotiating and setting
> pipeline format by using available libv4lsubdev API
> - applied minor improvements and cleanups
>
> ================
> Changes from v2:
> ================
>
> - switched to using mediatext library for parsing
> the media device configuration
> - extended libmediactl
> - switched to using libmediactl
>
> ================
> Changes from v1:
> ================
>
> - removed redundant mbus code negotiation
> - split the parser, media device helpers and ioctl wrappers
> to the separate modules
> - added mechanism for querying extended controls
> - applied various fixes and modifications
>
> The plugin was tested on linux-next_20150223 with patches for
> exynos4-is that fix failing open ioctl when a sensor sub-device is not
> linked [1] [2] [3].
>
> The plugin expects a configuration file:
> /var/lib/libv4l/exynos4_capture_conf
>
> Exemplary configuration file:
>
> ==========================================
>
> link-conf "s5p-mipi-csis.0":1 -> "FIMC.0":0 [1]
> ctrl-to-subdev-conf 0x0098091f -> "fimc.0.capture"
> ctrl-to-subdev-conf 0x00980902 -> "S5C73M3"
> ctrl-to-subdev-conf 0x00980922 -> "fimc.0.capture"
> ctrl-to-subdev-conf 0x009a0914 -> "S5C73M3"
>
> ==========================================
>
> With this settings the plugin can be tested on the exynos4412-trats2 board
> using following gstreamer pipeline:
>
> gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-raw,width=960,height=720
> ! fbdevsink
>
> Thanks,
> Jacek Anaszewski
>
> [1] https://patchwork.linuxtv.org/patch/26366/
> [2] https://patchwork.linuxtv.org/patch/26367/
> [3] https://patchwork.linuxtv.org/patch/26368/
>
> Jacek Anaszewski (13):
> mediactl: Introduce v4l2_subdev structure
> mediactl: Add support for v4l2-ctrl-redir config
> mediatext: Add library
> mediactl: Add media device graph helpers
> mediactl: Add media_device creation helpers
> mediactl: libv4l2subdev: add VYUY8_2X8 mbus code
> mediactl: Add support for media device pipelines
> mediactl: libv4l2subdev: add support for comparing mbus formats
> mediactl: libv4l2subdev: add support for setting pipeline format
> mediactl: libv4l2subdev: add get_pipeline_entity_by_cid function
> mediactl: Add media device ioctl API
> mediactl: libv4l2subdev: Enable opening/closing pipelines
> Add a libv4l plugin for Exynos4 camera
>
> Sakari Ailus (1):
> mediactl: Separate entity and pad parsing
>
> configure.ac | 1 +
> lib/Makefile.am | 5 +
> lib/libv4l-exynos4-camera/Makefile.am | 7 +
> lib/libv4l-exynos4-camera/libv4l-exynos4-camera.c | 586
> +++++++++++++++++++++
> utils/media-ctl/Makefile.am | 12 +-
> utils/media-ctl/libmediactl.c | 271 +++++++++-
> utils/media-ctl/libmediatext.pc.in | 10 +
> utils/media-ctl/libv4l2media_ioctl.c | 369 +++++++++++++
> utils/media-ctl/libv4l2media_ioctl.h | 40 ++
> utils/media-ctl/libv4l2subdev.c | 301 ++++++++++-
> utils/media-ctl/mediactl-priv.h | 11 +-
> utils/media-ctl/mediactl.h | 151 ++++++
> utils/media-ctl/mediatext-test.c | 64 +++
> utils/media-ctl/mediatext.c | 311 +++++++++++
> utils/media-ctl/mediatext.h | 52 ++
> utils/media-ctl/v4l2subdev.h | 131 +++++
> 16 files changed, 2292 insertions(+), 30 deletions(-)
> create mode 100644 lib/libv4l-exynos4-camera/Makefile.am
> create mode 100644 lib/libv4l-exynos4-camera/libv4l-exynos4-camera.c
> create mode 100644 utils/media-ctl/libmediatext.pc.in
> create mode 100644 utils/media-ctl/libv4l2media_ioctl.c
> create mode 100644 utils/media-ctl/libv4l2media_ioctl.h
> create mode 100644 utils/media-ctl/mediatext-test.c
> create mode 100644 utils/media-ctl/mediatext.c
> create mode 100644 utils/media-ctl/mediatext.h
>
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
