Never reuse a VideoToolbox decompression session.

content/common/gpu/media/vt_video_decode_accelerator.h

 // Copyright 2014 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_VT_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 79 matching lines @@
   struct Frame {
     explicit Frame(int32_t bitstream_id);
     ~Frame();
 
     // ID of the bitstream buffer this Frame will be decoded from.
     int32_t bitstream_id;
 
     // Relative presentation order of this frame (see AVC spec).
     int32_t pic_order_cnt;
 
-    // Nnumber of frames after this one in decode order that can appear before
+    // Whether this frame is an IDR.
+    bool is_idr;
+
+    // Number of frames after this one in decode order that can appear before
     // before it in presentation order.
     int32_t reorder_window;
 
     // Size of the decoded frame.
     // TODO(sandersd): visible_rect.
     gfx::Size coded_size;
 
     // VideoToolbox decoded image, if decoding was successful.
     base::ScopedCFTypeRef<CVImageBufferRef> image;
   };
@@ skipping 147 matching lines @@
   // Declared last to ensure that all weak pointers are invalidated before
   // other destructors run.
   base::WeakPtrFactory<VTVideoDecodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_