V4L2(S)VDA: Check if device handles profile for supported fourccs on init.

content/common/gpu/media/v4l2_slice_video_decode_accelerator.h

 // Copyright 2015 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 CONTENT_COMMON_GPU_MEDIA_V4L2_SLICE_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_V4L2_SLICE_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <linux/videodev2.h>
 #include <stddef.h>
 #include <stdint.h>
@@ skipping 72 matching lines @@
     bool cleared;
   };
 
   // See http://crbug.com/255116.
   // Input bitstream buffer size for up to 1080p streams.
   const size_t kInputBufferMaxSizeFor1080p = 1024 * 1024;
   // Input bitstream buffer size for up to 4k streams.
   const size_t kInputBufferMaxSizeFor4k = 4 * kInputBufferMaxSizeFor1080p;
   const size_t kNumInputBuffers = 16;
 
+  // Input format V4L2 fourccs this class supports.
+  static const uint32_t supported_input_fourccs_[];
+
   //
   // Below methods are used by accelerator implementations.
   //
   // Append slice data in |data| of size |size| to pending hardware
   // input buffer with |index|. This buffer will be submitted for decode
   // on the next DecodeSurface(). Return true on success.
   bool SubmitSlice(int index, const uint8_t* data, size_t size);
 
   // Submit controls in |ext_ctrls| to hardware. Return true on success.
   bool SubmitExtControls(struct v4l2_ext_controls* ext_ctrls);
@@ skipping 287 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(V4L2SliceVideoDecodeAccelerator);
 };
 
 class V4L2H264Picture;
 class V4L2VP8Picture;
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_V4L2_SLICE_VIDEO_DECODE_ACCELERATOR_H_