Add Vaapi support on Ozone/Freon

content/common/gpu/media/vaapi_wrapper.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // This file contains an implementation of VaapiWrapper, used by
 // VaapiVideoDecodeAccelerator and VaapiH264Decoder for decode,
 // and VaapiVideoEncodeAccelerator for encode, to interface
 // with libva (VA-API library for hardware video codec).
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_
 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_
 
 #include <set>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/media/va_surface.h"
 #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"
 #endif  // USE_X11
 
 namespace content {
 
 // This class handles VA-API calls and ensures proper locking of VA-API calls
 // to libva, the userspace shim to the HW codec driver. libva is not
 // thread-safe, so we have to perform locking ourselves. This class is fully
@@ skipping 31 matching lines @@
   // again to free the allocated surfaces first, but is not required to do so
   // at destruction time, as this will be done automatically from
   // the destructor.
   bool CreateSurfaces(const gfx::Size& size,
                       size_t num_surfaces,
                       std::vector<VASurfaceID>* va_surfaces);
 
   // 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.
   // Data submitted via this method awaits in the HW codec until
   // ExecuteAndDestroyPendingBuffers() is called to execute or
   // DestroyPendingBuffers() is used to cancel a pending job.
   bool SubmitBuffer(VABufferType va_buffer_type, size_t size, void* buffer);
 
   // Submit a VAEncMiscParameterBuffer of given |misc_param_type|, copying its
   // data from |buffer| of size |size|, into HW codec. The data in |buffer| is
@@ skipping 50 matching lines @@
   // to the encode job.
   bool DownloadAndDestroyCodedBuffer(VABufferID buffer_id,
                                      VASurfaceID sync_surface_id,
                                      uint8* target_ptr,
                                      size_t target_size,
                                      size_t* coded_data_size);
 
   // 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();
 
   bool Initialize(CodecMode mode,
                   media::VideoCodecProfile profile,
                   const base::Closure& report_error__to_uma_cb);
   void Deinitialize();
   bool VaInitialize(const base::Closure& report_error_to_uma_cb);
   bool GetSupportedVaProfiles(std::vector<VAProfile>* profiles);
   bool IsEntrypointSupported(VAProfile va_profile, VAEntrypoint entrypoint);
   bool AreAttribsSupported(VAProfile va_profile,
                            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.
   bool Execute(VASurfaceID va_surface_id);
 
   // Attempt to set render mode to "render to texture.". Failure is non-fatal.
   void TryToSetVADisplayAttributeToLocalGPU();
 
   // Lazily initialize static data after sandbox is enabled.  Return false on
   // init failure.
@@ skipping 24 matching lines @@
   std::vector<VABufferID> pending_slice_bufs_;
   std::vector<VABufferID> pending_va_bufs_;
 
   // Bitstream buffers for encode.
   std::set<VABufferID> coded_buffers_;
 
   // Called to report codec errors to UMA. Errors to clients are reported via
   // 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);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_