Add vaapi_h264_decoder_test.

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 to interface
 // with libva (VA-API library for hardware video decode).
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_
 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_
@@ skipping 60 matching lines @@
   // Execute decode in hardware into |va_surface_id} and destroy pending
   // buffers. Return false if SubmitDecode() fails.
   bool DecodeAndDestroyPendingBuffers(VASurfaceID va_surface_id);
 
   // Put data from |va_surface_id| into |x_pixmap| of size |size|,
   // converting/scaling to it.
   bool PutSurfaceIntoPixmap(VASurfaceID va_surface_id,
                             Pixmap x_pixmap,
                             gfx::Size dest_size);
 
+  // Get the surface data and return it in |buffer|, which has size |size|.
+  // The returned buffer contains data in I420 format and needs to be
+  // released by calling free(). The function returns true if successful.

[Pawel Osciak, 2013/10/20 23:53:11]

Can you instead use VideoFrame class for this?

[chihchung, 2013/10/21 09:33:05]

Done.

+  // Currently it only handles VASurface with NV12 format.
+  bool GetI420FromSurface(VASurfaceID va_surface_id,
+                          void** buffer,
+                          size_t* size);
+
   // Do any necessary initialization before the sandbox is enabled.
   static void PreSandboxInitialization();
 
  private:
   VaapiWrapper();
 
   bool Initialize(media::VideoCodecProfile profile,
                   Display* x_display,
                   const base::Closure& report_error__to_uma_cb);
   void Deinitialize();
@@ skipping 33 matching lines @@
 
   // Has static initialization of pre-sandbox components completed successfully?
   static bool pre_sandbox_init_done_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_WRAPPER_H_