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Make sure GStreamer is at least 1.14

Browse source 
Since we broke ABI with https://bugzilla.gnome.org/show_bug.cgi?id=743062#c30
it is the safest way to do handle.

Update the README accordingly
This commit is contained in:
Thibault Saunier 2018-05-09 08:31:35 -03:00
parent c40730fe93
commit 2f6752b3fe
2 changed files with 19 additions and 4 deletions
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8
README.md
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@ -10,9 +10,9 @@ the core and base gstreamer libraries.
Prerequisites Prerequisites
---- ----
These libraries are needed for clutter-sharp to compile: These libraries are needed for gstreamer-sharp to compile:
* gstreamer core, base and good 1.4 or higher * gstreamer core, base and good 1.14 or higher
* [gtk-sharp] 3.22.6 or higher - *NOTE: This can be built as a meson subproject if using the meson build system.* * [gtk-sharp] 3.22.0 or higher - *NOTE: This can be built as a meson subproject.*
You will also need various .NET/mono bits (mcs and al). On debian-based distros You will also need various .NET/mono bits (mcs and al). On debian-based distros
you can install these with: you can install these with:
@ -70,5 +70,5 @@ License
gstreamer-sharp is licensed under the [LGPL 2.1](https://www.gnu.org/licenses/lgpl-2.1.html) gstreamer-sharp is licensed under the [LGPL 2.1](https://www.gnu.org/licenses/lgpl-2.1.html)
[bindinator]:https://github.com/GLibSharp/bindinator [bindinator]:https://github.com/GLibSharp/bindinator
[gtk-sharp]:https://github.com/GLibSharp/GtlSharp [gtk-sharp]:https://github.com/GLibSharp/GtkSharp
[gstreamer]: http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/ [gstreamer]: http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/

15
sources/custom/Application.cs
View file

@ -21,6 +21,9 @@ namespace Gst {
partial class Application partial class Application
{ {
// Because of: https://bugzilla.gnome.org/show_bug.cgi?id=743062#c30
private static uint MIN_GSTREAMER_MINOR = 14;
static Application () { static Application () {
GLib.GType.Register (List.GType, typeof(List)); GLib.GType.Register (List.GType, typeof(List));
GLib.GType.Register (Fraction.GType, typeof(Fraction)); GLib.GType.Register (Fraction.GType, typeof(Fraction));
@ -38,9 +41,15 @@ namespace Gst {
[DllImport("libgstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)] [DllImport("libgstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
static extern void gst_init(IntPtr argc, IntPtr argv); static extern void gst_init(IntPtr argc, IntPtr argv);
private static void CheckVersion() {
if (Gst.Version.Minor < MIN_GSTREAMER_MINOR)
throw new Exception(Gst.Version.Description + " found but GStreamer 1." +
MIN_GSTREAMER_MINOR + " required.");
}
public static void Init() { public static void Init() {
gst_init (IntPtr.Zero, IntPtr.Zero); gst_init (IntPtr.Zero, IntPtr.Zero);
CheckVersion();
} }
public static void Init(ref string[] argv) { public static void Init(ref string[] argv) {
@ -52,6 +61,8 @@ namespace Gst {
gst_init(ref cnt_argv, ref native_argv); gst_init(ref cnt_argv, ref native_argv);
foreach (var native_arg in native_arg_list) foreach (var native_arg in native_arg_list)
GLib.Marshaller.Free (native_arg); GLib.Marshaller.Free (native_arg);
CheckVersion();
} }
[DllImport("libgstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)] [DllImport("libgstreamer-1.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
@ -63,6 +74,8 @@ namespace Gst {
public static bool InitCheck() { public static bool InitCheck() {
IntPtr error = IntPtr.Zero; IntPtr error = IntPtr.Zero;
bool ret = gst_init_check (IntPtr.Zero, IntPtr.Zero, out error); bool ret = gst_init_check (IntPtr.Zero, IntPtr.Zero, out error);
CheckVersion();
if (error != IntPtr.Zero) throw new GLib.GException (error); if (error != IntPtr.Zero) throw new GLib.GException (error);
return ret; return ret;
} }
@ -78,6 +91,8 @@ namespace Gst {
foreach (var native_arg in native_arg_list) foreach (var native_arg in native_arg_list)
GLib.Marshaller.Free (native_arg); GLib.Marshaller.Free (native_arg);
if (error != IntPtr.Zero) throw new GLib.GException (error); if (error != IntPtr.Zero) throw new GLib.GException (error);
CheckVersion();
return ret; return ret;
} }
} }