<video> decode in hardware!

content/renderer/media/capture_video_decoder.cc

 // Copyright (c) 2011 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.
 
 #include "content/renderer/media/capture_video_decoder.h"
 
 #include "base/bind.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "media/base/filter_host.h"
 #include "media/base/limits.h"
@@ skipping 15 matching lines @@
       state_(kUnInitialized),
       video_stream_id_(video_stream_id),
       capture_engine_(NULL) {
   DCHECK(vc_manager);
 }
 
 CaptureVideoDecoder::~CaptureVideoDecoder() {}
 
 void CaptureVideoDecoder::Initialize(
     media::DemuxerStream* demuxer_stream,
-    const base::Closure& filter_callback,
+    const media::PipelineStatusCB& filter_callback,
     const media::StatisticsCallback& stat_callback) {
   message_loop_proxy_->PostTask(
       FROM_HERE,
       base::Bind(&CaptureVideoDecoder::InitializeOnDecoderThread,
                  this, make_scoped_refptr(demuxer_stream),
                  filter_callback, stat_callback));
 }
 
 void CaptureVideoDecoder::Read(const ReadCB& callback) {
   message_loop_proxy_->PostTask(
@@ skipping 80 matching lines @@
     media::VideoCapture* capture,
     const media::VideoCaptureParams& device_info) {
   message_loop_proxy_->PostTask(
       FROM_HERE,
       base::Bind(&CaptureVideoDecoder::OnDeviceInfoReceivedOnDecoderThread,
                  this, capture, device_info));
 }
 
 void CaptureVideoDecoder::InitializeOnDecoderThread(
     media::DemuxerStream* demuxer_stream,
-    const base::Closure& filter_callback,
+    const media::PipelineStatusCB& filter_callback,
     const media::StatisticsCallback& stat_callback) {
   DVLOG(1) << "InitializeOnDecoderThread";
   DCHECK(message_loop_proxy_->BelongsToCurrentThread());
 
   capture_engine_ = vc_manager_->AddDevice(video_stream_id_, this);
 
   statistics_callback_ = stat_callback;
-  filter_callback.Run();
+  filter_callback.Run(media::PIPELINE_OK);
   state_ = kNormal;
 }
 
 void CaptureVideoDecoder::ReadOnDecoderThread(const ReadCB& callback) {
   DCHECK(message_loop_proxy_->BelongsToCurrentThread());
   CHECK(read_cb_.is_null());
   read_cb_ = callback;
 }
 
 void CaptureVideoDecoder::PlayOnDecoderThread(const base::Closure& callback) {
@@ skipping 107 matching lines @@
   capture->FeedBuffer(buf);
 }
 
 void CaptureVideoDecoder::DeliverFrame(
     const scoped_refptr<media::VideoFrame>& video_frame) {
   // Reset the callback before running to protect against reentrancy.
   ReadCB read_cb = read_cb_;
   read_cb_.Reset();
   read_cb.Run(video_frame);
 }