vo_opengl: support new VAAPI EGL interop

Should work much better than the old GLX interop code. Requires Mesa 11,
and explicitly selecting the X11 EGL backend with:

    --vo=opengl:backend=x11egl

Should it turn out that the new interop works well, we will try to
autodetect EGL by default.

This code still uses some bad assumptions, like expecting surfaces to be
in NV12. (This is probably ok, because virtually all HW will use this
format. But we should at least check this on init or so, instead of
failing to render an image if our assumption doesn't hold up.)

This repo was a lot of help: https://github.com/gbeauchesne/ffvademo
The kodi code was also helpful (the magic FourCC it uses for
EGL_LINUX_DRM_FOURCC_EXT are nowhere documented, and
EGL_IMAGE_INTERNAL_FORMAT_EXT as used in ffvademo does
not actually exist).

(This is the 3rd VAAPI GL interop that was implemented in this player.)

1 files changed, 4 insertions, 0 deletions

diff --git a/video/out/opengl/hwdec.c b/video/out/opengl/hwdec.c
index ee602fa191..d93dc99397 100644
--- a/video/out/opengl/hwdec.c
+++ b/video/out/opengl/hwdec.c
@@ -29,6 +29,7 @@
 #include "common/msg.h"
 #include "hwdec.h"
 
+extern const struct gl_hwdec_driver gl_hwdec_vaegl;
 extern const struct gl_hwdec_driver gl_hwdec_vaglx;
 extern const struct gl_hwdec_driver gl_hwdec_vda;
 extern const struct gl_hwdec_driver gl_hwdec_videotoolbox;
@@ -36,6 +37,9 @@ extern const struct gl_hwdec_driver gl_hwdec_vdpau;
 extern const struct gl_hwdec_driver gl_hwdec_dxva2;
 
 static const struct gl_hwdec_driver *const mpgl_hwdec_drivers[] = {
+#if HAVE_VAAPI_X_EGL
+    &gl_hwdec_vaegl,
+#endif
 #if HAVE_VAAPI_GLX
     &gl_hwdec_vaglx,
 #endif