16 bpp video stream capture, render and WebGL usage - Realsense R200 & SR300 support.

content/renderer/media/video_capture_impl.cc

 // 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.
 //
 // Notes about usage of this object by VideoCaptureImplManager.
 //
 // VideoCaptureImplManager access this object by using a Unretained()
 // binding and tasks on the IO thread. It is then important that
 // VideoCaptureImpl never post task to itself. All operations must be
 // synchronous.
@@ skipping 292 matching lines @@
 
 void VideoCaptureImpl::OnBufferReceived(
     int buffer_id,
     base::TimeDelta timestamp,
     const base::DictionaryValue& metadata,
     media::VideoPixelFormat pixel_format,
     media::VideoFrame::StorageType storage_type,
     const gfx::Size& coded_size,
     const gfx::Rect& visible_rect) {
   DCHECK(io_task_runner_->BelongsToCurrentThread());
+  // TODO(astojilj) Check STORAGE_GPU_MEMORY_BUFFERS support for Y8/Y16.
   if (state_ != VIDEO_CAPTURE_STATE_STARTED || suspended_ ||
-      pixel_format != media::PIXEL_FORMAT_I420 ||
+      (pixel_format != media::PIXEL_FORMAT_I420 &&
+       ((pixel_format != media::PIXEL_FORMAT_Y8 &&
+         pixel_format != media::PIXEL_FORMAT_Y16) ||
+        storage_type != media::VideoFrame::STORAGE_SHMEM)) ||
       (storage_type != media::VideoFrame::STORAGE_SHMEM &&
        storage_type != media::VideoFrame::STORAGE_GPU_MEMORY_BUFFERS)) {
     // Crash in debug builds since the host should not have provided a buffer
     // with an unsupported pixel format or storage type.
-    DCHECK_EQ(media::PIXEL_FORMAT_I420, pixel_format);
+    DCHECK(media::PIXEL_FORMAT_I420 == pixel_format ||
+           ((media::PIXEL_FORMAT_Y8 == pixel_format ||
+             media::PIXEL_FORMAT_Y16 == pixel_format) &&
+            storage_type == media::VideoFrame::STORAGE_SHMEM));
     DCHECK(storage_type == media::VideoFrame::STORAGE_SHMEM ||
            storage_type == media::VideoFrame::STORAGE_GPU_MEMORY_BUFFERS);
     Send(new VideoCaptureHostMsg_BufferReady(device_id_, buffer_id,
                                              gpu::SyncToken(), -1.0));
     return;
   }
 
   base::TimeTicks reference_time;
   media::VideoFrameMetadata frame_metadata;
   frame_metadata.MergeInternalValuesFrom(metadata);
@@ skipping 240 matching lines @@
   double consumer_resource_utilization = -1.0;
   if (!metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION,
                            &consumer_resource_utilization)) {
     consumer_resource_utilization = -1.0;
   }
 
   callback_to_io_thread.Run(*release_sync_token, consumer_resource_utilization);
 }
 
 }  // namespace content