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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
