API: fix versioning.

We have to consider three distinct versions at this time: the VA-API
version, the library package version number, and the DSO version.

* VA-API version:
- increment major for any ABI change (which shall not occur!)
- increment minor for any interface change (e.g. new or modified function)
- increment micro for any other change (e.g. new flag, new codec definitions)
- reset micro version to zero when minor version is incremented
- reset minor version to zero when major version is incremented

* libva package version number:
- major version is automatically generated from VA-API major version
- minor version is automatically generated from VA-API minor version
- increment micro for any library release
- reset micro version to zero when VA-API major or minor version is incremented

* DSO version:
The SONAME shall remain to libva.so.1 for VA-API 0.x.y as long as the ABI
is not changed. Thus, the library name is generated as libva.<x>.<y>.0 where
<x> = VA-API major version + 1
<y> = 100 * VA-API minor version + VA-API micro version

For example:
VA-API 0.32.0 generates libva.so.1.3200.0 (libva 1.0.14 as of today)
VA-API 0.34.1 generates libva.so.1.3401.0 (e.g. libva 1.2.1)
VA-API 1.2.13 generates libva.so.2.213.0  (e.g. libva 2.2.13)

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>

5 files changed, 5 insertions, 5 deletions

diff --git a/pkgconfig/libva-egl.pc.in b/pkgconfig/libva-egl.pc.in
index 3d621b2..d80fcc8 100644
--- a/pkgconfig/libva-egl.pc.in
+++ b/pkgconfig/libva-egl.pc.in
@@ -7,7 +7,7 @@ display=egl
 Name: libva-${display}
 Description: Userspace Video Acceleration (VA) ${display} interface
 Requires: libva
-Version: @PACKAGE_VERSION@
+Version: @VA_API_VERSION@
 Libs: -L${libdir} -lva-${display}
 Cflags: -I${includedir}
 
diff --git a/pkgconfig/libva-glx.pc.in b/pkgconfig/libva-glx.pc.in
index 2019915..8599866 100644
--- a/pkgconfig/libva-glx.pc.in
+++ b/pkgconfig/libva-glx.pc.in
@@ -7,6 +7,6 @@ display=glx
 Name: libva-${display}
 Description: Userspace Video Acceleration (VA) ${display} interface
 Requires: libva
-Version: @PACKAGE_VERSION@
+Version: @VA_API_VERSION@
 Libs: -L${libdir} -lva-${display}
 Cflags: -I${includedir}
diff --git a/pkgconfig/libva-tpi.pc.in b/pkgconfig/libva-tpi.pc.in
index 43616c0..bc7fdd7 100644
--- a/pkgconfig/libva-tpi.pc.in
+++ b/pkgconfig/libva-tpi.pc.in
@@ -6,6 +6,6 @@ includedir=@includedir@
 Name: libva-tpi
 Description: Userspace Video Acceleration (VA) 3rd party interface
 Requires: libva
-Version: @PACKAGE_VERSION@
+Version: @VA_API_VERSION@
 Libs: -L${libdir} -lva-tpi
 Cflags: -I${includedir}
diff --git a/pkgconfig/libva-x11.pc.in b/pkgconfig/libva-x11.pc.in
index 6dde07f..4e7330c 100644
--- a/pkgconfig/libva-x11.pc.in
+++ b/pkgconfig/libva-x11.pc.in
@@ -7,6 +7,6 @@ display=x11
 Name: libva-${display}
 Description: Userspace Video Acceleration (VA) ${display} interface
 Requires: libva
-Version: @PACKAGE_VERSION@
+Version: @VA_API_VERSION@
 Libs: -L${libdir} -lva-${display}
 Cflags: -I${includedir}
diff --git a/pkgconfig/libva.pc.in b/pkgconfig/libva.pc.in
index 60f1483..8b03f98 100644
--- a/pkgconfig/libva.pc.in
+++ b/pkgconfig/libva.pc.in
@@ -6,6 +6,6 @@ driverdir=@LIBVA_DRIVERS_PATH@
 
 Name: libva
 Description: Userspace Video Acceleration (VA) core interface
-Version: @PACKAGE_VERSION@
+Version: @VA_API_VERSION@
 Libs: -L${libdir} -lva
 Cflags: -I${includedir}