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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-08 13:34:19 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-08 13:34:19 +0200 |
| commit | c43087924dbe5c50c0198979ed5a40e3e00c3bab (patch) | |
| tree | 4e798bd1d2a9f4c7965a337933ab0f0e4dd0056b /linux/include/media | |
| parent | 7e060a1f1573031a7925ebba3789faf730c97ecb (diff) | |
| download | mediapointer-dvb-s2-c43087924dbe5c50c0198979ed5a40e3e00c3bab.tar.gz mediapointer-dvb-s2-c43087924dbe5c50c0198979ed5a40e3e00c3bab.tar.bz2 | |
v4l2: add v4l2_ctrl_query_menu_valid_items support function
From: Hans Verkuil <hverkuil@xs4all.nl>
v4l2_ctrl_query_menu_valid_items() makes it easy to handle control menus
that have a lot of invalid 'holes'. For example, many MPEG encoders only
support a limited subset of audio bitrates. In that case a driver can
specify an array listing the set of valid bitrates and pass that to
this function.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'linux/include/media')
| -rw-r--r-- | linux/include/media/v4l2-common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/linux/include/media/v4l2-common.h b/linux/include/media/v4l2-common.h index 8b678e0d4..0c195ccd4 100644 --- a/linux/include/media/v4l2-common.h +++ b/linux/include/media/v4l2-common.h @@ -82,6 +82,8 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl); int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, const char **menu_items); +#define V4L2_CTRL_MENU_IDS_END (0xffffffff) +int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids); u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id); /* ------------------------------------------------------------------------- */ |