80 lines
3.3 KiB
Diff
80 lines
3.3 KiB
Diff
https://git.videolan.org/?p=vlc.git;a=blob;f=modules/audio_filter/channel_mixer/simple_neon.h;h=2fe607566c38d8eba5c3308aff408cabc8422623;hb=147717df85c312ac559181fc0943839a3a3bf19c
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file is missing in 3.0.2 tarball
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--- /dev/null
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+++ modules/audio_filter/channel_mixer/simple_neon.h
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@@ -0,0 +1,72 @@
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+/*****************************************************************************
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+ * simple_neon.h : simple channel mixer plug-in using NEON assembly
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+ *****************************************************************************
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+ * Copyright (C) 2002, 2004, 2006-2009, 2012, 2015 VLC authors and VideoLAN
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+ * $Id$
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+ *
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+ * Authors: Gildas Bazin <gbazin@videolan.org>
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+ * David Geldreich <david.geldreich@free.fr>
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+ * Sébastien Toque
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+ * Thomas Guillem <thomas@gllm.fr>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU Lesser General Public License as published by
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+ * the Free Software Foundation; either version 2.1 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public License
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+ * along with this program; if not, write to the Free Software Foundation,
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+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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+ *****************************************************************************/
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+
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+#ifdef HAVE_CONFIG_H
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+# include "config.h"
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+#endif
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+#include <vlc_cpu.h>
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+
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+/* Only conversion to Mono, Stereo and 4.0 right now */
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+/* Only from 7/7.1/5/5.1/3/3.1/2.0
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+ * XXX 5.X rear and middle are handled the same way */
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+
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+#define NEON_WRAPPER(in, out) \
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+ void convert_##in##_to_##out##_neon_asm(float *dst, const float *src, int num, bool lfeChannel); \
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+ static inline void DoWork_##in##_to_##out##_neon( filter_t *p_filter, block_t *p_in_buf, block_t *p_out_buf ) \
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+ { \
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+ const float *p_src = (const float *)p_in_buf->p_buffer; \
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+ float *p_dest = (float *)p_out_buf->p_buffer; \
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+ convert_##in##_to_##out##_neon_asm( p_dest, p_src, p_in_buf->i_nb_samples, \
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+ p_filter->fmt_in.audio.i_physical_channels & AOUT_CHAN_LFE ); \
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+ } \
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+ static inline void (*GET_WORK_##in##_to_##out##_neon())(filter_t*, block_t*, block_t*) \
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+ { \
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+ return vlc_CPU_ARM_NEON() ? DoWork_##in##_to_##out##_neon : DoWork_##in##_to_##out; \
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+ }
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+
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+NEON_WRAPPER(7_x,2_0)
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+NEON_WRAPPER(5_x,2_0)
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+NEON_WRAPPER(4_0,2_0)
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+NEON_WRAPPER(3_x,2_0)
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+NEON_WRAPPER(7_x,1_0)
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+NEON_WRAPPER(5_x,1_0)
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+NEON_WRAPPER(7_x,4_0)
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+NEON_WRAPPER(5_x,4_0)
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+
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+/* TODO: the following conversions are not handled in NEON */
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+
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+#define C_WRAPPER(in, out) \
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+ static inline void (*GET_WORK_##in##_to_##out##_neon())(filter_t*, block_t*, block_t*) \
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+ { \
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+ return DoWork_##in##_to_##out; \
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+ }
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+
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+C_WRAPPER(4_0,1_0)
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+C_WRAPPER(3_x,1_0)
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+C_WRAPPER(2_x,1_0)
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+C_WRAPPER(6_1,2_0)
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+C_WRAPPER(7_x,5_x)
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+C_WRAPPER(6_1,5_x)
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