adding ffmpeg specific version

1 files changed, 48 insertions, 0 deletions

diff --git a/ffmpeg1/libavcodec/x86/sbrdsp_init.c b/ffmpeg1/libavcodec/x86/sbrdsp_init.c
new file mode 100644
index 0000000..27fade1
--- /dev/null
+++ b/ffmpeg1/libavcodec/x86/sbrdsp_init.c
@@ -0,0 +1,48 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+ *
+ * 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
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/sbrdsp.h"
+
+float ff_sbr_sum_square_sse(float (*x)[2], int n);
+void ff_sbr_sum64x5_sse(float *z);
+void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2],
+                          const float *g_filt, int m_max, intptr_t ixh);
+void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
+                       const float alpha0[2], const float alpha1[2],
+                       float bw, int start, int end);
+void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
+
+av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
+{
+    int mm_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(mm_flags)) {
+        s->sum_square = ff_sbr_sum_square_sse;
+        s->sum64x5    = ff_sbr_sum64x5_sse;
+        s->hf_g_filt  = ff_sbr_hf_g_filt_sse;
+        s->hf_gen     = ff_sbr_hf_gen_sse;
+        s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
+    }
+}