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61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_CHECKSUM_H_
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#define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_CHECKSUM_H_
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#include <string>
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/base/md5digest.h"
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#include "webrtc/base/stringencode.h"
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#include "webrtc/modules/audio_coding/neteq/tools/audio_sink.h"
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#include "webrtc/system_wrappers/interface/compile_assert.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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namespace test {
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class AudioChecksum : public AudioSink {
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public:
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AudioChecksum() : finished_(false) {}
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virtual bool WriteArray(const int16_t* audio, size_t num_samples) OVERRIDE {
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if (finished_)
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return false;
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#ifndef WEBRTC_ARCH_LITTLE_ENDIAN
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#error "Big-endian gives a different checksum"
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#endif
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checksum_.Update(audio, num_samples * sizeof(*audio));
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return true;
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}
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// Finalizes the computations, and returns the checksum.
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std::string Finish() {
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if (!finished_) {
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finished_ = true;
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checksum_.Finish(checksum_result_, rtc::Md5Digest::kSize);
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}
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return rtc::hex_encode(checksum_result_, rtc::Md5Digest::kSize);
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}
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private:
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rtc::Md5Digest checksum_;
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char checksum_result_[rtc::Md5Digest::kSize];
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bool finished_;
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DISALLOW_COPY_AND_ASSIGN(AudioChecksum);
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_CHECKSUM_H_
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