Index: webrtc/modules/audio_coding/neteq/audio_classifier.cc |
diff --git a/webrtc/modules/audio_coding/neteq/audio_classifier.cc b/webrtc/modules/audio_coding/neteq/audio_classifier.cc |
deleted file mode 100644 |
index 4a8c6fb974ed539c8462c78f477bf8cf085c4365..0000000000000000000000000000000000000000 |
--- a/webrtc/modules/audio_coding/neteq/audio_classifier.cc |
+++ /dev/null |
@@ -1,75 +0,0 @@ |
-/* |
- * Copyright (c) 2014 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. |
- */ |
- |
-#include "webrtc/modules/audio_coding/neteq/audio_classifier.h" |
- |
-#include <assert.h> |
-#include <string.h> |
- |
-namespace webrtc { |
- |
-static const int kDefaultSampleRateHz = 48000; |
-static const int kDefaultFrameRateHz = 50; |
-static const int kDefaultFrameSizeSamples = |
- kDefaultSampleRateHz / kDefaultFrameRateHz; |
-static const float kDefaultThreshold = 0.5f; |
- |
-AudioClassifier::AudioClassifier() |
- : analysis_info_(), |
- is_music_(false), |
- music_probability_(0), |
- // This actually assigns the pointer to a static constant struct |
- // rather than creates a struct and |celt_mode_| does not need |
- // to be deleted. |
- celt_mode_(opus_custom_mode_create(kDefaultSampleRateHz, |
- kDefaultFrameSizeSamples, |
- NULL)), |
- analysis_state_() { |
- assert(celt_mode_); |
-} |
- |
-AudioClassifier::~AudioClassifier() {} |
- |
-bool AudioClassifier::Analysis(const int16_t* input, |
- int input_length, |
- int channels) { |
- // Must be 20 ms frames at 48 kHz sampling. |
- assert((input_length / channels) == kDefaultFrameSizeSamples); |
- |
- // Only mono or stereo are allowed. |
- assert(channels == 1 || channels == 2); |
- |
- // Call Opus' classifier, defined in |
- // "third_party/opus/src/src/analysis.h", with lsb_depth = 16. |
- // Also uses a down-mixing function downmix_int, defined in |
- // "third_party/opus/src/src/opus_private.h", with |
- // constants c1 = 0, and c2 = -2. |
- run_analysis(&analysis_state_, |
- celt_mode_, |
- input, |
- kDefaultFrameSizeSamples, |
- kDefaultFrameSizeSamples, |
- 0, |
- -2, |
- channels, |
- kDefaultSampleRateHz, |
- 16, |
- downmix_int, |
- &analysis_info_); |
- music_probability_ = analysis_info_.music_prob; |
- is_music_ = music_probability_ > kDefaultThreshold; |
- return is_music_; |
-} |
- |
-bool AudioClassifier::is_music() const { |
- return is_music_; |
-} |
- |
-} // namespace webrtc |