V4L2SVDA/VAAPIVDA: use visible size from decoder and pass to client

media/gpu/h264_dpb.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.
 //
 // This file contains an implementation of an H.264 Decoded Picture Buffer
 // used in H264 decoders.
 
 #ifndef MEDIA_GPU_H264_DPB_H_
 #define MEDIA_GPU_H264_DPB_H_
 
 #include <stddef.h>
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "media/filters/h264_parser.h"
+#include "ui/gfx/geometry/rect.h"
 
 namespace media {
 
 class V4L2H264Picture;
 class VaapiH264Picture;
 
 // A picture (a frame or a field) in the H.264 spec sense.
 // See spec at http://www.itu.int/rec/T-REC-H.264
 class H264Picture : public base::RefCounted<H264Picture> {
  public:
@@ skipping 49 matching lines @@
 
   // Values from slice_hdr to be used during reference marking and
   // memory management after finishing this picture.
   bool long_term_reference_flag;
   bool adaptive_ref_pic_marking_mode_flag;
   H264DecRefPicMarking ref_pic_marking[H264SliceHeader::kRefListSize];
 
   // Position in DPB (i.e. index in DPB).
   int dpb_position;
 
+  // The visible size of picture. This could be either parsed from SPS, or set
+  // to gfx::Rect(0, 0) for indicating invalid values or not available.
+  gfx::Rect visible_rect;
+
  protected:
   friend class base::RefCounted<H264Picture>;
   virtual ~H264Picture();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(H264Picture);
 };
 
 // DPB - Decoded Picture Buffer.
 // Stores decoded pictures that will be used for future display
@@ skipping 71 matching lines @@
 
   H264Picture::Vector pics_;
   size_t max_num_pics_;
 
   DISALLOW_COPY_AND_ASSIGN(H264DPB);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_H264_DPB_H_