media: Enabling direct rendering for VP9

media/filters/vpx_video_decoder.h

Index: media/filters/vpx_video_decoder.h
diff --git a/media/filters/vpx_video_decoder.h b/media/filters/vpx_video_decoder.h
index cc02e89aad0b57027818b3f1702c8f8d5e9f2669..f55fd3108f17f5edb72a6905f3cec4e12330185d 100644
--- a/media/filters/vpx_video_decoder.h
+++ b/media/filters/vpx_video_decoder.h
@@ -14,6 +14,7 @@
 #include "media/base/video_frame_pool.h"
 
 struct vpx_codec_ctx;
+struct vpx_codec_frame_buffer;
 struct vpx_image;
 
 namespace base {
@@ -41,6 +42,15 @@ class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder {
   virtual void Stop(const base::Closure& closure) OVERRIDE;
   virtual bool HasAlpha() const OVERRIDE;
 
+  // Callback that will be called by libvpx if the frame buffer size needs to
+  // increase. Parameters:
+  // user_priv  Data passed into libvpx (we pass NULL).
+  // new_size   Minimum size needed by libvpx to decompress the next frame.
+  // fb         Pointer to the frame buffer to update.
+  // Returns VPX_CODEC_OK on success. Returns < 0 on failure.
+  static int32 ReallocVP9FrameBuffer(void* user_priv, size_t new_size,
+                                     vpx_codec_frame_buffer* fb);
+
  private:
   enum DecoderState {
     kUninitialized,
@@ -83,6 +93,9 @@ class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder {
 
   VideoFramePool frame_pool_;
 
+  // Frame Buffers used for VP9 decoding.
+  vpx_codec_frame_buffer* frame_buffers_;

[acolwell GONE FROM CHROMIUM, 2013/12/17 19:07:03]

nit: Use scoped_vector<vpx_codec_frame_buffer>

[vignesh, 2013/12/18 18:01:02]

not applicable anymore. Done.

+
   DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder);
 };