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| 1 /* | 1 /* | 
| 2  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 
| 3  * | 3  * | 
| 4  *  Use of this source code is governed by a BSD-style license | 4  *  Use of this source code is governed by a BSD-style license | 
| 5  *  that can be found in the LICENSE file in the root of the source | 5  *  that can be found in the LICENSE file in the root of the source | 
| 6  *  tree. An additional intellectual property rights grant can be found | 6  *  tree. An additional intellectual property rights grant can be found | 
| 7  *  in the file PATENTS.  All contributing project authors may | 7  *  in the file PATENTS.  All contributing project authors may | 
| 8  *  be found in the AUTHORS file in the root of the source tree. | 8  *  be found in the AUTHORS file in the root of the source tree. | 
| 9  */ | 9  */ | 
| 10 #include "webrtc/common_video/h264/h264_bitstream_parser.h" | 10 #include "webrtc/common_video/h264/h264_bitstream_parser.h" | 
| 11 | 11 | 
| 12 #include <memory> | 12 #include <memory> | 
| 13 #include <vector> | 13 #include <vector> | 
| 14 | 14 | 
| 15 #include "webrtc/base/bitbuffer.h" | 15 #include "webrtc/rtc_base/bitbuffer.h" | 
| 16 #include "webrtc/base/checks.h" | 16 #include "webrtc/rtc_base/checks.h" | 
| 17 | 17 | 
| 18 #include "webrtc/common_video/h264/h264_common.h" | 18 #include "webrtc/common_video/h264/h264_common.h" | 
| 19 #include "webrtc/base/logging.h" | 19 #include "webrtc/rtc_base/logging.h" | 
| 20 | 20 | 
| 21 namespace { | 21 namespace { | 
| 22 const int kMaxAbsQpDeltaValue = 51; | 22 const int kMaxAbsQpDeltaValue = 51; | 
| 23 const int kMinQpValue = 0; | 23 const int kMinQpValue = 0; | 
| 24 const int kMaxQpValue = 51; | 24 const int kMaxQpValue = 51; | 
| 25 } | 25 } | 
| 26 | 26 | 
| 27 namespace webrtc { | 27 namespace webrtc { | 
| 28 | 28 | 
| 29 #define RETURN_ON_FAIL(x, res)        \ | 29 #define RETURN_ON_FAIL(x, res)        \ | 
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| 308   const int parsed_qp = 26 + pps_->pic_init_qp_minus26 + *last_slice_qp_delta_; | 308   const int parsed_qp = 26 + pps_->pic_init_qp_minus26 + *last_slice_qp_delta_; | 
| 309   if (parsed_qp < kMinQpValue || parsed_qp > kMaxQpValue) { | 309   if (parsed_qp < kMinQpValue || parsed_qp > kMaxQpValue) { | 
| 310     LOG(LS_ERROR) << "Parsed invalid QP from bitstream."; | 310     LOG(LS_ERROR) << "Parsed invalid QP from bitstream."; | 
| 311     return false; | 311     return false; | 
| 312   } | 312   } | 
| 313   *qp = parsed_qp; | 313   *qp = parsed_qp; | 
| 314   return true; | 314   return true; | 
| 315 } | 315 } | 
| 316 | 316 | 
| 317 }  // namespace webrtc | 317 }  // namespace webrtc | 
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