From 197cd79c6314ac2e14ce94624e21f3c4e38dca7c Mon Sep 17 00:00:00 2001 From: Yamit Mehta Date: Wed, 26 Aug 2015 21:00:40 +0530 Subject: audio: Audio resampler support for 192Khz playback Add support for QTI audio resampler audio: Audio resampler support for 192Khz playback Change-Id: Ia8f24a0874ebf6e16ef7bd1f2759a14f47149875 audio: Add audio mixing support for qti resampler Change-Id: Ib657aa12b2a72323564148c302ff8891e1bb7433 AudioMixer: Extend use of QTI resampler for 44.1Khz sampling rate Change-Id: I2a819dbc9f1e3e280cb4fa79328e331883a3e981 AudioMixer: fill 0s at right place when no more buffers available Change-Id: I50504c5a02eb0c69abfc9b047792b0f6f85b9ce8 audioflinger: add channel count check to use QTI resampler Change-Id: I8f76dd82b72a0dd8b77343e77e0d0545e1be2114 Change-Id: Ia8f24a0874ebf6e16ef7bd1f2759a14f47149875 --- services/audioflinger/AudioResamplerQTI.h | 52 +++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 services/audioflinger/AudioResamplerQTI.h (limited to 'services/audioflinger/AudioResamplerQTI.h') diff --git a/services/audioflinger/AudioResamplerQTI.h b/services/audioflinger/AudioResamplerQTI.h new file mode 100644 index 0000000..0b30a9f --- /dev/null +++ b/services/audioflinger/AudioResamplerQTI.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2014, The Linux Foundation. All rights reserved. + * Not a Contribution. + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include + +#include "AudioResampler.h" + +namespace android { +// ---------------------------------------------------------------------------- + +class AudioResamplerQTI : public AudioResampler { +public: + AudioResamplerQTI(int format, int inChannelCount, int32_t sampleRate); + ~AudioResamplerQTI(); + size_t resample(int32_t* out, size_t outFrameCount, + AudioBufferProvider* provider); + void setSampleRate(int32_t inSampleRate); + size_t getNumInSample(size_t outFrameCount); + + int16_t *mState; + int16_t *mTmpBuf; + int32_t *mResamplerOutBuf; + size_t mFrameIndex; + size_t stateSize; + size_t mOutFrameCount; + + static const int kNumTmpBufSize = 1024; + + void init(); + void reset(); +}; + +// ---------------------------------------------------------------------------- +}; // namespace android + -- cgit v1.1