Sanity check parsed QP values from H264 bitstream

webrtc/common_video/h264/pps_parser_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 183 matching lines @@
   rtc::Buffer buffer_;
   rtc::Optional<PpsParser::PpsState> parsed_pps_;
 };
 
 TEST_F(PpsParserTest, ZeroPps) {
   RunTest();
 }
 
 TEST_F(PpsParserTest, MaxPps) {
   generated_pps_.bottom_field_pic_order_in_frame_present_flag = true;
-  generated_pps_.pic_init_qp_minus26 = std::numeric_limits<int32_t>::max();
+  generated_pps_.pic_init_qp_minus26 = 25;
   generated_pps_.redundant_pic_cnt_present_flag = 1;  // 1 bit value.
   generated_pps_.weighted_bipred_idc = (1 << 2) - 1;  // 2 bit value.
   generated_pps_.weighted_pred_flag = true;
   generated_pps_.entropy_coding_mode_flag = true;
   generated_pps_.id = 2;
   generated_pps_.sps_id = 1;
   RunTest();
 
-  generated_pps_.pic_init_qp_minus26 = std::numeric_limits<int32_t>::min() + 1;
+  generated_pps_.pic_init_qp_minus26 = -25;
   RunTest();
 }
 
 TEST_F(PpsParserTest, PpsIdFromSlice) {
   rtc::Optional<uint32_t> pps_id = PpsParser::ParsePpsIdFromSlice(
       kH264BitstreamChunk, sizeof(kH264BitstreamChunk));
   ASSERT_TRUE(pps_id);
   EXPECT_EQ(2u, *pps_id);
 }
 
 }  // namespace webrtc