summaryrefslogtreecommitdiffstats
path: root/media/ffvpx/libavutil/float_dsp.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /media/ffvpx/libavutil/float_dsp.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'media/ffvpx/libavutil/float_dsp.h')
-rw-r--r--media/ffvpx/libavutil/float_dsp.h186
1 files changed, 186 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/float_dsp.h b/media/ffvpx/libavutil/float_dsp.h
new file mode 100644
index 000000000..d1be38f94
--- /dev/null
+++ b/media/ffvpx/libavutil/float_dsp.h
@@ -0,0 +1,186 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FLOAT_DSP_H
+#define AVUTIL_FLOAT_DSP_H
+
+#include "config.h"
+
+typedef struct AVFloatDSPContext {
+ /**
+ * Calculate the entry wise product of two vectors of floats and store the result in
+ * a vector of floats.
+ *
+ * @param dst output vector
+ * constraints: 32-byte aligned
+ * @param src0 first input vector
+ * constraints: 32-byte aligned
+ * @param src1 second input vector
+ * constraints: 32-byte aligned
+ * @param len number of elements in the input
+ * constraints: multiple of 16
+ */
+ void (*vector_fmul)(float *dst, const float *src0, const float *src1,
+ int len);
+
+ /**
+ * Multiply a vector of floats by a scalar float and add to
+ * destination vector. Source and destination vectors must
+ * overlap exactly or not at all.
+ *
+ * @param dst result vector
+ * constraints: 32-byte aligned
+ * @param src input vector
+ * constraints: 32-byte aligned
+ * @param mul scalar value
+ * @param len length of vector
+ * constraints: multiple of 16
+ */
+ void (*vector_fmac_scalar)(float *dst, const float *src, float mul,
+ int len);
+
+ /**
+ * Multiply a vector of floats by a scalar float. Source and
+ * destination vectors must overlap exactly or not at all.
+ *
+ * @param dst result vector
+ * constraints: 16-byte aligned
+ * @param src input vector
+ * constraints: 16-byte aligned
+ * @param mul scalar value
+ * @param len length of vector
+ * constraints: multiple of 4
+ */
+ void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
+ int len);
+
+ /**
+ * Multiply a vector of double by a scalar double. Source and
+ * destination vectors must overlap exactly or not at all.
+ *
+ * @param dst result vector
+ * constraints: 32-byte aligned
+ * @param src input vector
+ * constraints: 32-byte aligned
+ * @param mul scalar value
+ * @param len length of vector
+ * constraints: multiple of 8
+ */
+ void (*vector_dmul_scalar)(double *dst, const double *src, double mul,
+ int len);
+
+ /**
+ * Overlap/add with window function.
+ * Used primarily by MDCT-based audio codecs.
+ * Source and destination vectors must overlap exactly or not at all.
+ *
+ * @param dst result vector
+ * constraints: 16-byte aligned
+ * @param src0 first source vector
+ * constraints: 16-byte aligned
+ * @param src1 second source vector
+ * constraints: 16-byte aligned
+ * @param win half-window vector
+ * constraints: 16-byte aligned
+ * @param len length of vector
+ * constraints: multiple of 4
+ */
+ void (*vector_fmul_window)(float *dst, const float *src0,
+ const float *src1, const float *win, int len);
+
+ /**
+ * Calculate the entry wise product of two vectors of floats, add a third vector of
+ * floats and store the result in a vector of floats.
+ *
+ * @param dst output vector
+ * constraints: 32-byte aligned
+ * @param src0 first input vector
+ * constraints: 32-byte aligned
+ * @param src1 second input vector
+ * constraints: 32-byte aligned
+ * @param src2 third input vector
+ * constraints: 32-byte aligned
+ * @param len number of elements in the input
+ * constraints: multiple of 16
+ */
+ void (*vector_fmul_add)(float *dst, const float *src0, const float *src1,
+ const float *src2, int len);
+
+ /**
+ * Calculate the entry wise product of two vectors of floats, and store the result
+ * in a vector of floats. The second vector of floats is iterated over
+ * in reverse order.
+ *
+ * @param dst output vector
+ * constraints: 32-byte aligned
+ * @param src0 first input vector
+ * constraints: 32-byte aligned
+ * @param src1 second input vector
+ * constraints: 32-byte aligned
+ * @param len number of elements in the input
+ * constraints: multiple of 16
+ */
+ void (*vector_fmul_reverse)(float *dst, const float *src0,
+ const float *src1, int len);
+
+ /**
+ * Calculate the sum and difference of two vectors of floats.
+ *
+ * @param v1 first input vector, sum output, 16-byte aligned
+ * @param v2 second input vector, difference output, 16-byte aligned
+ * @param len length of vectors, multiple of 4
+ */
+ void (*butterflies_float)(float *av_restrict v1, float *av_restrict v2, int len);
+
+ /**
+ * Calculate the scalar product of two vectors of floats.
+ *
+ * @param v1 first vector, 16-byte aligned
+ * @param v2 second vector, 16-byte aligned
+ * @param len length of vectors, multiple of 4
+ *
+ * @return sum of elementwise products
+ */
+ float (*scalarproduct_float)(const float *v1, const float *v2, int len);
+} AVFloatDSPContext;
+
+/**
+ * Return the scalar product of two vectors.
+ *
+ * @param v1 first input vector
+ * @param v2 first input vector
+ * @param len number of elements
+ *
+ * @return sum of elementwise products
+ */
+float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len);
+
+void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict);
+void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp);
+
+/**
+ * Allocate a float DSP context.
+ *
+ * @param strict setting to non-zero avoids using functions which may not be IEEE-754 compliant
+ */
+AVFloatDSPContext *avpriv_float_dsp_alloc(int strict);
+
+#endif /* AVUTIL_FLOAT_DSP_H */