Add libavresample

This is a new library for audio sample format, channel layout, and sample rate
conversion.

1 files changed, 44 insertions, 0 deletions

diff --git a/libavresample/x86/audio_mix_init.c b/libavresample/x86/audio_mix_init.c
new file mode 100644
index 0000000000..8f8930f836
--- /dev/null
+++ b/libavresample/x86/audio_mix_init.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2012 Justin Ruggles <justin.ruggles@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/cpu.h"
+#include "libavresample/audio_mix.h"
+
+extern void ff_mix_2_to_1_fltp_flt_sse(float **src, float **matrix, int len,
+                                       int out_ch, int in_ch);
+extern void ff_mix_2_to_1_fltp_flt_avx(float **src, float **matrix, int len,
+                                       int out_ch, int in_ch);
+
+av_cold void ff_audio_mix_init_x86(AudioMix *am)
+{
+#if HAVE_YASM
+    int mm_flags = av_get_cpu_flags();
+
+    if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
+        ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
+                              2, 1, 16, 8, "SSE", ff_mix_2_to_1_fltp_flt_sse);
+    }
+    if (mm_flags & AV_CPU_FLAG_AVX && HAVE_AVX) {
+        ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
+                              2, 1, 32, 16, "AVX", ff_mix_2_to_1_fltp_flt_avx);
+    }
+#endif
+}