nest-open-source / manifest_repos / ffmpeg / 62cf23d89db2251203d6207e2261ddc5498167c6 / . / libavcodec / fft_table.h

/* | |

* Copyright (c) 2012 | |

* MIPS Technologies, Inc., California. | |

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* | |

* Authors: Stanislav Ocovaj (socovaj@mips.com) | |

* Goran Cordasic (goran@mips.com) | |

* Djordje Pesut (djordje@mips.com) | |

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* This file is part of FFmpeg. | |

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*/ | |

/** | |

* @file | |

* definitions and tables for FFT | |

*/ | |

#ifndef AVCODEC_FFT_TABLE_H | |

#define AVCODEC_FFT_TABLE_H | |

#include "libavcodec/fft.h" | |

#define MAX_LOG2_NFFT 17 //!< Specifies maximum allowed fft size | |

#define MAX_FFT_SIZE (1 << MAX_LOG2_NFFT) | |

extern const int32_t ff_w_tab_sr[]; | |

extern uint16_t ff_fft_offsets_lut[]; | |

void ff_fft_lut_init(void); | |

#endif /* AVCODEC_FFT_TABLE_H */ |