[Buildroot] [PATCH v6 09/16] package/opencv: add a choice for selecting gstreamer support
Yann E. MORIN
yann.morin.1998 at free.fr
Fri Jun 26 18:11:22 UTC 2015
Samuel, All,
On 2015-06-25 21:59 +0200, Samuel Martin spake thusly:
> OpenCV 3.0 support both gstreamer-0.10 and gstreamer-1.x, but only one
> is used at the time.
>
> This patch turns the gstreamer support into a choice, in order to prepare
> adding the support for gstreamer-1 in a following patch.
>
> Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
>
> ---
> changes v5->v6:
> - new patch
> ---
> package/opencv/Config.in | 23 ++++++++++++++++-------
> 1 file changed, 16 insertions(+), 7 deletions(-)
>
> diff --git a/package/opencv/Config.in b/package/opencv/Config.in
> index 8ed505e..4b571e0 100644
> --- a/package/opencv/Config.in
> +++ b/package/opencv/Config.in
> @@ -177,18 +177,27 @@ config BR2_PACKAGE_OPENCV_WITH_FFMPEG
> help
> Use ffmpeg from the target system.
>
> +comment "gstreamer support needs a toolchain w/ wchar, threads"
> + depends on BR2_USE_MMU
> + depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
Although I don't like it much, we usually have the comment in the choice
itself, see for example the external toolchain choice.
> +choice
> + prompt "gstreamer support"
> + depends on BR2_USE_MMU # libglib2
> + depends on BR2_USE_WCHAR # libglib2
> + depends on BR2_TOOLCHAIN_HAS_THREADS # libglib2
So, this means the choice will not be visible when gstreamer is missing
its dependencies.
Instead, I'd do something like is done (in a later patch) for the GUI
toolkits, that is always show the choice, but hide whatever entries are
not available:
choice
bool "gstreamer support"
config BR2_PKG_OCV_GST_NONE
bool "none"
config BR2_PKG_OCV_GST_0_10
bool "gstreamer 0.10"
depends on BR2_USE_MMU # gst-0.10
depends on BR2_USE_WCHAR # gst-0.10
depends on BR2_TOOLCHAIN_HAS_THREADS # gst-0.10
comment "gst-0.10 support needs a toolchain w/ wxhar, threads"
depends on BR2_USE_MMU
depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
endchoice
Regards,
Yann E. MORIN.
> +config BR2_PACKAGE_OPENCV_WITHOUT_GSTREAMER
> + bool "none"
> +
> config BR2_PACKAGE_OPENCV_WITH_GSTREAMER
> - bool "gstreamer support"
> - depends on BR2_USE_MMU # gstreamer -> libglib2
> - depends on BR2_USE_WCHAR # gstreamer -> libglib2
> - depends on BR2_TOOLCHAIN_HAS_THREADS # gstreamer -> libglib2
> + bool "gstreamer-0.10"
> select BR2_PACKAGE_GSTREAMER
> select BR2_PACKAGE_GST_PLUGINS_BASE
> select BR2_PACKAGE_GST_PLUGINS_BASE_PLUGIN_APP
>
> -comment "gstreamer support needs a toolchain w/ wchar, threads"
> - depends on BR2_USE_MMU
> - depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
> +
> +endchoice
>
> config BR2_PACKAGE_OPENCV_WITH_GTK
> bool "gtk support"
> --
> 2.4.4
>
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