H264Decoder: Handle gaps in frame_num.

content/common/gpu/media/vaapi_video_decode_accelerator.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.
 
 #include "content/common/gpu/media/vaapi_video_decode_accelerator.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
@@ skipping 1274 matching lines @@
 VaapiVideoDecodeAccelerator::VaapiH264Accelerator::
     H264PictureToVaapiDecodeSurface(const scoped_refptr<H264Picture>& pic) {
   VaapiH264Picture* vaapi_pic = pic->AsVaapiH264Picture();
   CHECK(vaapi_pic);
   return vaapi_pic->dec_surface();
 }
 
 void VaapiVideoDecodeAccelerator::VaapiH264Accelerator::FillVAPicture(
     VAPictureH264* va_pic,
     scoped_refptr<H264Picture> pic) {
-  scoped_refptr<VaapiDecodeSurface> dec_surface =
-      H264PictureToVaapiDecodeSurface(pic);
+  VASurfaceID va_surface_id = VA_INVALID_SURFACE;
 
-  va_pic->picture_id = dec_surface->va_surface()->id();
+  if (!pic->nonexisting) {
+    scoped_refptr<VaapiDecodeSurface> dec_surface =
+        H264PictureToVaapiDecodeSurface(pic);
+    va_surface_id = dec_surface->va_surface()->id();
+  }
+
+  va_pic->picture_id = va_surface_id;
   va_pic->frame_idx = pic->frame_num;
   va_pic->flags = 0;
 
   switch (pic->field) {
     case H264Picture::FIELD_NONE:
       break;
     case H264Picture::FIELD_TOP:
       va_pic->flags |= VA_PICTURE_H264_TOP_FIELD;
       break;
     case H264Picture::FIELD_BOTTOM:
@@ skipping 417 matching lines @@
   return vaapi_pic->dec_surface();
 }
 
 // static
 media::VideoDecodeAccelerator::SupportedProfiles
 VaapiVideoDecodeAccelerator::GetSupportedProfiles() {
   return VaapiWrapper::GetSupportedDecodeProfiles();
 }
 
 }  // namespace content