media: Support SetCdm() on GpuVideoDecoder.

media/filters/gpu_video_decoder.h

 // Copyright (c) 2012 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.
 
 #ifndef MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 40 matching lines @@
                   const InitCB& init_cb,
                   const OutputCB& output_cb) override;
   void Decode(const scoped_refptr<DecoderBuffer>& buffer,
               const DecodeCB& decode_cb) override;
   void Reset(const base::Closure& closure) override;
   bool NeedsBitstreamConversion() const override;
   bool CanReadWithoutStalling() const override;
   int GetMaxDecodeRequests() const override;
 
   // VideoDecodeAccelerator::Client implementation.
+  void NotifyCdmAttached(bool success) override;
   void ProvidePictureBuffers(uint32 count,
                              const gfx::Size& size,
                              uint32 texture_target) override;
   void DismissPictureBuffer(int32 id) override;
   void PictureReady(const media::Picture& picture) override;
   void NotifyEndOfBitstreamBuffer(int32 id) override;
   void NotifyFlushDone() override;
   void NotifyResetDone() override;
   void NotifyError(media::VideoDecodeAccelerator::Error error) override;
 
@@ skipping 24 matching lines @@
                         const scoped_refptr<DecoderBuffer>& b,
                         const DecodeCB& done_cb);
     ~PendingDecoderBuffer();
     SHMBuffer* shm_buffer;
     scoped_refptr<DecoderBuffer> buffer;
     DecodeCB done_cb;
   };
 
   typedef std::map<int32, PictureBuffer> PictureBufferMap;
 
+  // Callback to set CDM. |cdm_attached_cb| is called when the decryptor in the
+  // CDM has been completely attached to the pipeline.
+  void SetCdm(CdmContext* cdm_context, const CdmAttachedCB& cdm_attached_cb);
+
   void DeliverFrame(const scoped_refptr<VideoFrame>& frame);
 
   // Static method is to allow it to run even after GVD is deleted.
   static void ReleaseMailbox(base::WeakPtr<GpuVideoDecoder> decoder,
                              media::GpuVideoAcceleratorFactories* factories,
                              int64 picture_buffer_id,
                              uint32 texture_id,
                              const gpu::SyncToken& release_sync_token);
   // Indicate the picture buffer can be reused by the decoder.
   void ReusePictureBuffer(int64 picture_buffer_id);
@@ skipping 23 matching lines @@
   void DCheckGpuVideoAcceleratorFactoriesTaskRunnerIsCurrent() const;
 
   bool needs_bitstream_conversion_;
 
   GpuVideoAcceleratorFactories* factories_;
 
   // Populated during Initialize() (on success) and unchanged until an error
   // occurs.
   scoped_ptr<VideoDecodeAccelerator> vda_;
 
+  InitCB init_cb_;
   OutputCB output_cb_;
 
   DecodeCB eos_decode_cb_;
 
   // Not null only during reset.
   base::Closure pending_reset_cb_;
 
   State state_;
 
   VideoDecoderConfig config_;
 
+  // Callback to request/cancel CDM ready notification.
+  SetCdmReadyCB set_cdm_ready_cb_;
+  CdmAttachedCB cdm_attached_cb_;
+
   // Shared-memory buffer pool.  Since allocating SHM segments requires a
   // round-trip to the browser process, we keep allocation out of the
   // steady-state of the decoder.
   std::vector<SHMBuffer*> available_shm_segments_;
 
   std::map<int32, PendingDecoderBuffer> bitstream_buffers_in_decoder_;
   PictureBufferMap assigned_picture_buffers_;
   // PictureBuffers given to us by VDA via PictureReady, which we sent forward
   // as VideoFrames to be rendered via decode_cb_, and which will be returned
   // to us via ReusePictureBuffer.
@@ skipping 27 matching lines @@
   // Bound to factories_->GetMessageLoop().
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<GpuVideoDecoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_