FFTContext 41 3rdparty/include/ffmpeg_/libavcodec/avfft.h typedef struct FFTContext FFTContext; FFTContext 48 3rdparty/include/ffmpeg_/libavcodec/avfft.h FFTContext *av_fft_init(int nbits, int inverse); FFTContext 53 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_fft_permute(FFTContext *s, FFTComplex *z); FFTContext 59 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_fft_calc(FFTContext *s, FFTComplex *z); FFTContext 61 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_fft_end(FFTContext *s); FFTContext 63 3rdparty/include/ffmpeg_/libavcodec/avfft.h FFTContext *av_mdct_init(int nbits, int inverse, double scale); FFTContext 64 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); FFTContext 65 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input); FFTContext 66 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); FFTContext 67 3rdparty/include/ffmpeg_/libavcodec/avfft.h void av_mdct_end(FFTContext *s);