Add Vaapi support on Ozone/Freon

content/common/gpu/media/vaapi_wrapper.h

Index: content/common/gpu/media/vaapi_wrapper.h
diff --git a/content/common/gpu/media/vaapi_wrapper.h b/content/common/gpu/media/vaapi_wrapper.h
index 242684e0315b6594f47692a121af7d63cd93aba3..7c1bf56ad3b7e12c386e19b9b08f1905902f0849 100644
--- a/content/common/gpu/media/vaapi_wrapper.h
+++ b/content/common/gpu/media/vaapi_wrapper.h
@@ -20,6 +20,7 @@
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame.h"
 #include "third_party/libva/va/va.h"
+#include "third_party/libva/va/va_vpp.h"
 #include "ui/gfx/size.h"
 #if defined(USE_X11)
 #include "third_party/libva/va/va_x11.h"
@@ -71,6 +72,16 @@ class CONTENT_EXPORT VaapiWrapper {
   // Free all memory allocated in CreateSurfaces.
   void DestroySurfaces();
 
+  // Create a VASurface of |va_format|, |size| and using
+  // |num_va_attribs| attributes from |va_attribs|. The ownership of
+  // the surface is transfered to the caller. It differs from surfaces

[Pawel Osciak, 2014/12/26 00:38:56]

s/transfered/transferred/

[llandwerlin-old, 2014/12/26 02:50:02]

Done.

+  // created using CreateSurfaces() where VaapiWrapper is the owner of

[Pawel Osciak, 2014/12/26 00:38:56]

s/()/(),/

[llandwerlin-old, 2014/12/26 02:50:02]

Done.

+  // the surfaces.
+  scoped_refptr<VASurface> CreateUnownedSurface(unsigned int va_format,

[Pawel Osciak, 2014/12/26 00:38:56]

Should we also be passing va_format to CreateSurfaces?

[llandwerlin-old, 2014/12/26 02:50:02]

Surfaces used by the decoder/encoder are assumed to be of NV12 format. It seems
these assumptions are in VaapiWrapper at the moment. Adding va_format to
CreateSurfaces() moves the assumption from VaapiWrapper to VaapiV[DE]A.

Maybe we can keep that for another CL?

+                                                const gfx::Size& size,
+                                                VASurfaceAttrib* va_attribs,

[Pawel Osciak, 2014/12/26 00:38:56]

Could we instead pass a vector, remove num_va_attribs and then use
&va_attribs[0] please?

[llandwerlin-old, 2014/12/26 02:50:02]

Done.

+                                                size_t num_va_attribs);
+
   // Submit parameters or slice data of |va_buffer_type|, copying them from
   // |buffer| of size |size|, into HW codec. The data in |buffer| is no
   // longer needed and can be freed after this method returns.
@@ -141,6 +152,14 @@ class CONTENT_EXPORT VaapiWrapper {
   // Destroy all previously-allocated (and not yet destroyed) coded buffers.
   void DestroyCodedBuffers();
 
+  // Blits a VASurface |va_surface_id_src| into another VASurface
+  // |va_surface_id_dest| applying pixel format conversion and scaling
+  // if needed.
+  bool BlitSurface(VASurfaceID va_surface_id_src,
+                   const gfx::Size& src_size,
+                   VASurfaceID va_surface_id_dest,
+                   const gfx::Size& dest_size);
+
  private:
   VaapiWrapper();
 
@@ -155,6 +174,16 @@ class CONTENT_EXPORT VaapiWrapper {
                            VAEntrypoint entrypoint,
                            const std::vector<VAConfigAttrib>& required_attribs);
 
+  // Destroys a |va_surface| created using CreateUnownedSurface.
+  void DestroyUnownedSurface(VASurfaceID va_surface);

[Pawel Osciak, 2014/12/26 00:38:56]

s/va_surface/va_surface_id/

[llandwerlin-old, 2014/12/26 02:50:02]

Done.

+
+  // Initialize the video post processing context with the |size| of
+  // the input pictures to be processed.
+  bool InitializeVpp_Locked();
+
+  // Deinitialize the video post processing context.
+  void DeinitializeVpp();
+
   // Execute pending job in hardware and destroy pending buffers. Return false
   // if vaapi driver refuses to accept parameter or slice buffers submitted
   // by client, or if execution fails in hardware.
@@ -199,6 +228,11 @@ class CONTENT_EXPORT VaapiWrapper {
   // return values from public methods.
   base::Closure report_error_to_uma_cb_;
 
+  // VPP context

[Pawel Osciak, 2014/12/26 00:38:56]

Please describe what VPP is and what it is used for.

[llandwerlin-old, 2014/12/26 02:50:02]

Done.

+  VAConfigID va_vpp_config_id_;
+  VAContextID va_vpp_context_id_;
+  VABufferID va_vpp_buffer_id_;
+
   DISALLOW_COPY_AND_ASSIGN(VaapiWrapper);
 };