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-rw-r--r--libavresample/arm/resample_init.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/libavresample/arm/resample_init.c b/libavresample/arm/resample_init.c
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+++ b/libavresample/arm/resample_init.c
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+/*
+ * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
+ *
+ * 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 "libavutil/arm/cpu.h"
+#include "libavutil/internal.h"
+#include "libavutil/samplefmt.h"
+
+#include "libavresample/resample.h"
+
+#include "asm-offsets.h"
+
+AV_CHECK_OFFSET(struct ResampleContext, filter_bank, FILTER_BANK);
+AV_CHECK_OFFSET(struct ResampleContext, filter_length, FILTER_LENGTH);
+AV_CHECK_OFFSET(struct ResampleContext, src_incr, SRC_INCR);
+AV_CHECK_OFFSET(struct ResampleContext, phase_shift, PHASE_SHIFT);
+AV_CHECK_OFFSET(struct ResampleContext, phase_mask, PHASE_MASK);
+
+void ff_resample_one_flt_neon(struct ResampleContext *c, void *dst0,
+ int dst_index, const void *src0,
+ unsigned int index, int frac);
+void ff_resample_one_s16_neon(struct ResampleContext *c, void *dst0,
+ int dst_index, const void *src0,
+ unsigned int index, int frac);
+void ff_resample_one_s32_neon(struct ResampleContext *c, void *dst0,
+ int dst_index, const void *src0,
+ unsigned int index, int frac);
+
+void ff_resample_linear_flt_neon(struct ResampleContext *c, void *dst0,
+ int dst_index, const void *src0,
+ unsigned int index, int frac);
+
+av_cold void ff_audio_resample_init_arm(ResampleContext *c,
+ enum AVSampleFormat sample_fmt)
+{
+ int cpu_flags = av_get_cpu_flags();
+ if (have_neon(cpu_flags)) {
+ switch (sample_fmt) {
+ case AV_SAMPLE_FMT_FLTP:
+ if (c->linear)
+ c->resample_one = ff_resample_linear_flt_neon;
+ else
+ c->resample_one = ff_resample_one_flt_neon;
+ break;
+ case AV_SAMPLE_FMT_S16P:
+ if (!c->linear)
+ c->resample_one = ff_resample_one_s16_neon;
+ break;
+ case AV_SAMPLE_FMT_S32P:
+ if (!c->linear)
+ c->resample_one = ff_resample_one_s32_neon;
+ break;
+ }
+ }
+}