audio_buffer.rar_mixed _original_data

/* * Copyright (c) 2011 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. */ #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_AUDIO_BUFFER_H_ #define WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_AUDIO_BUFFER_H_ #include "module_common_types.h" #include "scoped_ptr.h" #include "typedefs.h" namespace webrtc { struct AudioChannel; struct SplitAudioChannel; class AudioBuffer { public: AudioBuffer(int max_num_channels, int samples_per_channel); virtual ~AudioBuffer(); int num_channels() const; int samples_per_channel() const; int samples_per_split_channel() const; int16_t* data(int channel) const; int16_t* low_pass_split_data(int channel) const; int16_t* high_pass_split_data(int channel) const; int16_t* mixed_data(int channel) const; int16_t* mixed_low_pass_data(int channel) const; int16_t* low_pass_reference(int channel) const; int32_t* analysis_filter_state1(int channel) const; int32_t* analysis_filter_state2(int channel) const; int32_t* synthesis_filter_state1(int channel) const; int32_t* synthesis_filter_state2(int channel) const; void set_activity(AudioFrame::VADActivity activity); AudioFrame::VADActivity activity() const; bool is_muted() const; void DeinterleaveFrom(AudioFrame* audioFrame); void InterleaveTo(AudioFrame* audioFrame) const; // If |data_changed| is false, only the non-audio data members will be copied // to |frame|. void InterleaveTo(AudioFrame* frame, bool data_changed) const; void Mix(int num_mixed_channels); void CopyAndMix(int num_mixed_channels); void CopyAndMixLowPass(int num_mixed_channels); void CopyLowPassToReference(); private: const int max_num_channels_; int num_channels_; int num_mixed_channels_; int num_mixed_low_pass_channels_; // Whether the original data was replaced with mixed data. bool data_was_mixed_; const int samples_per_channel_; int samples_per_split_channel_; bool reference_copied_; AudioFrame::VADActivity activity_; bool is_muted_; int16_t* data_; scoped_array<AudioChannel> channels_; scoped_array<SplitAudioChannel> split_channels_; scoped_array<AudioChannel> mixed_channels_; // TODO(andrew): improve this, we don't need the full 32 kHz space here. scoped_array<AudioChannel> mixed_low_pass_channels_; scoped_array<AudioChannel> low_pass_reference_channels_; }; } // namespace webrtc #endif // WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_AUDIO_BUFFER_H_