diff options
Diffstat (limited to 'services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp')
-rw-r--r-- | services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp b/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp new file mode 100644 index 0000000..ade58a7 --- /dev/null +++ b/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2012 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 <dnsampler_filter_coefficients_x128_10112011.h> +#include <resampler_filter_coefficients_10042011.h> +#undef LOG_TAG +#include <utils/Log.h> +//#include "common_log.h" +#define LOG_TAG "ResamplerCoefficients" +#define LOG_NDEBUG 0 + +const int32_t RESAMPLE_FIR_NUM_COEF = 16; +const int32_t RESAMPLE_FIR_LERP_INT_BITS = 7; + +using namespace android; +#ifdef __cplusplus +extern "C" { +#endif +const int32_t* readResamplerCoefficients(bool upSample) { + + ALOGV("readResamplerCoefficients"); + if(upSample) { + return resampler_filter_coefficients_10042011; + } + else { + return dnsampler_filter_coefficients_x128_10112011; + } + +} + +int32_t readResampleFirNumCoeff() { + + return RESAMPLE_FIR_NUM_COEF; +} + +int32_t readResampleFirLerpIntBits() { + + return RESAMPLE_FIR_LERP_INT_BITS; +} +#ifdef __cplusplus +} +#endif |