diff options
Diffstat (limited to 'media/libeffects/loudness/dsp/core/basic-inl.h')
-rw-r--r-- | media/libeffects/loudness/dsp/core/basic-inl.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/media/libeffects/loudness/dsp/core/basic-inl.h b/media/libeffects/loudness/dsp/core/basic-inl.h new file mode 100644 index 0000000..3f77147 --- /dev/null +++ b/media/libeffects/loudness/dsp/core/basic-inl.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2013 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. + */ + +#ifndef LE_FX_ENGINE_DSP_CORE_BASIC_INL_H_ +#define LE_FX_ENGINE_DSP_CORE_BASIC_INL_H_ + +#include <math.h> + +namespace le_fx { + +namespace sigmod { + +template <typename T> +int SearchIndex(const T x_data[], + T x, + int start_index, + int end_index) { + int start = start_index; + int end = end_index; + while (end > start + 1) { + int i = (end + start) / 2; + if (x_data[i] > x) { + end = i; + } else { + start = i; + } + } + return start; +} + +} // namespace sigmod + +} // namespace le_fx + +#endif // LE_FX_ENGINE_DSP_CORE_BASIC_INL_H_ |