H264Decoder: Handle gaps in frame_num.

content/common/gpu/media/h264_dpb.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 <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "content/common/gpu/media/h264_dpb.h"
 
 namespace content {
 
 H264Picture::H264Picture()
-    : top_field_order_cnt(0),
+    : pic_order_cnt_type(0),
+      top_field_order_cnt(0),
       bottom_field_order_cnt(0),
       pic_order_cnt(0),
       pic_order_cnt_msb(0),
       pic_order_cnt_lsb(0),
+      delta_pic_order_cnt_bottom(0),
+      delta_pic_order_cnt0(0),
+      delta_pic_order_cnt1(0),
       pic_num(0),
       long_term_pic_num(0),
       frame_num(0),
       frame_num_offset(0),
       frame_num_wrap(0),
       long_term_frame_idx(0),
       type(media::H264SliceHeader::kPSlice),
+      nal_ref_idc(0),
       idr(false),
+      idr_pic_id(0),
       ref(false),
       long_term(false),
       outputted(false),
       mem_mgmt_5(false),
+      nonexisting(false),
       field(FIELD_NONE),
       long_term_reference_flag(false),
       adaptive_ref_pic_marking_mode_flag(false),
       dpb_position(0) {
   memset(&ref_pic_marking, 0, sizeof(ref_pic_marking));
 }
 
 H264Picture::~H264Picture() {
 }
 
@@ skipping 116 matching lines @@
 }
 
 void H264DPB::GetLongTermRefPicsAppending(H264Picture::Vector* out) {
   for (const auto& pic : pics_) {
     if (pic->ref && pic->long_term)
       out->push_back(pic);
   }
 }
 
 }  // namespace content