--- /dev/null
- * This file is part of Libav.
+ /*
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
- * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #ifndef AVCODEC_FFT_INTERNAL_H
+ #define AVCODEC_FFT_INTERNAL_H
+
+ #if CONFIG_FFT_FLOAT
+
+ #define FIX15(v) (v)
+ #define sqrthalf (float)M_SQRT1_2
+
+ #define BF(x, y, a, b) do { \
+ x = a - b; \
+ y = a + b; \
+ } while (0)
+
+ #define CMUL(dre, dim, are, aim, bre, bim) do { \
+ (dre) = (are) * (bre) - (aim) * (bim); \
+ (dim) = (are) * (bim) + (aim) * (bre); \
+ } while (0)
+
+ #else
+
+ #include "libavutil/intmath.h"
+ #include "mathops.h"
+
+ #define SCALE_FLOAT(a, bits) lrint((a) * (double)(1 << (bits)))
+ #define FIX15(a) av_clip(SCALE_FLOAT(a, 15), -32767, 32767)
+
+ #define sqrthalf ((int16_t)((1<<15)*M_SQRT1_2))
+
+ #define BF(x, y, a, b) do { \
+ x = (a - b) >> 1; \
+ y = (a + b) >> 1; \
+ } while (0)
+
+ #define CMUL(dre, dim, are, aim, bre, bim) do { \
+ (dre) = (MUL16(are, bre) - MUL16(aim, bim)) >> 15; \
+ (dim) = (MUL16(are, bim) + MUL16(aim, bre)) >> 15; \
+ } while (0)
+
+ #endif /* CONFIG_FFT_FLOAT */
+
+ #define ff_imdct_calc_c FFT_NAME(ff_imdct_calc_c)
+ #define ff_imdct_half_c FFT_NAME(ff_imdct_half_c)
+ #define ff_mdct_calc_c FFT_NAME(ff_mdct_calc_c)
+
+ void ff_imdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+ void ff_imdct_half_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+ void ff_mdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+
+ #endif /* AVCODEC_FFT_INTERNAL_H */
--- /dev/null
- * This file is part of Libav.
+ /*
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
- * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #define CONFIG_FFT_FLOAT 0
+ #include "fft.c"
--- /dev/null
- * This file is part of Libav.
+ /*
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
- * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #define CONFIG_FFT_FLOAT 1
+ #include "fft.c"
--- /dev/null
- * This file is part of Libav.
+ /*
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
- * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #define CONFIG_FFT_FLOAT 0
+ #include "mdct.c"
--- /dev/null
- * This file is part of Libav.
+ /*
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
- * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #define CONFIG_FFT_FLOAT 1
+ #include "mdct.c"