aacps: move some loops to function pointers

Signed-off-by: Mans Rullgard <mans@mansr.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/libavcodec/aacpsdsp.h b/libavcodec/aacpsdsp.h
new file mode 100644
index 0000000000..909d3418f2
--- /dev/null
+++ b/libavcodec/aacpsdsp.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBAVCODEC_AACPSDSP_H
+#define LIBAVCODEC_AACPSDSP_H
+
+#define PS_QMF_TIME_SLOTS 32
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSDSPContext {
+    void (*add_squares)(float *dst, const float (*src)[2], int n);
+    void (*mul_pair_single)(float (*dst)[2], float (*src0)[2], float *src1,
+                            int n);
+    void (*hybrid_analysis)(float (*out)[2], float (*in)[2],
+                            const float (*filter)[7][2],
+                            int stride, int n);
+    void (*hybrid_analysis_ileave)(float (*out)[32][2], float L[2][38][64],
+                                   int i, int len);
+    void (*hybrid_synthesis_deint)(float out[2][38][64], float (*in)[32][2],
+                                   int i, int len);
+    void (*decorrelate)(float (*out)[2], float (*delay)[2],
+                        float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
+                        const float phi_fract[2], float (*Q_fract)[2],
+                        const float *transient_gain,
+                        float g_decay_slope,
+                        int len);
+    void (*stereo_interpolate[2])(float (*l)[2], float (*r)[2],
+                                  float h[2][4], float h_step[2][4],
+                                  int len);
+} PSDSPContext;
+
+void ff_psdsp_init(PSDSPContext *s);
+
+#endif /* LIBAVCODEC_AACPSDSP_H */