early-access version 1432

2021-02-09 04:25:58 +01:00
parent de64eab4b4
commit 3d5a9d908a
7336 changed files with 1773492 additions and 111 deletions
--- a/externals/ffmpeg/libavcodec/fmtconvert.h
+++ b/externals/ffmpeg/libavcodec/fmtconvert.h
@@ -0,0 +1,77 @@
+/*
+ * Format Conversion Utils
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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 AVCODEC_FMTCONVERT_H
+#define AVCODEC_FMTCONVERT_H
+
+#include "avcodec.h"
+
+typedef struct FmtConvertContext {
+    /**
+     * Convert an array of int32_t to float and multiply by a float value.
+     * @param dst destination array of float.
+     *            constraints: 16-byte aligned
+     * @param src source array of int32_t.
+     *            constraints: 16-byte aligned
+     * @param len number of elements to convert.
+     *            constraints: multiple of 8
+     */
+    void (*int32_to_float_fmul_scalar)(float *dst, const int32_t *src,
+                                       float mul, int len);
+    /**
+     * Convert an array of int32_t to float.
+     * @param dst destination array of float.
+     *            constraints: 32-byte aligned
+     * @param src source array of int32_t.
+     *            constraints: 32-byte aligned
+     * @param len number of elements to convert.
+     *            constraints: multiple of 8
+     */
+    void (*int32_to_float)(float *dst, const int32_t *src, intptr_t len);
+
+    /**
+     * Convert an array of int32_t to float and multiply by a float value from another array,
+     * stepping along the float array once for each 8 integers.
+     * @param c   pointer to FmtConvertContext.
+     * @param dst destination array of float.
+     *            constraints: 16-byte aligned
+     * @param src source array of int32_t.
+     *            constraints: 16-byte aligned
+     * @param mul source array of float multipliers.
+     * @param len number of elements to convert.
+     *            constraints: multiple of 8
+     */
+    void (*int32_to_float_fmul_array8)(struct FmtConvertContext *c,
+                                       float *dst, const int32_t *src,
+                                       const float *mul, int len);
+
+} FmtConvertContext;
+
+void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx);
+
+void ff_fmt_convert_init_aarch64(FmtConvertContext *c, AVCodecContext *avctx);
+void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx);
+void ff_fmt_convert_init_ppc(FmtConvertContext *c, AVCodecContext *avctx);
+void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx);
+void ff_fmt_convert_init_mips(FmtConvertContext *c);
+
+#endif /* AVCODEC_FMTCONVERT_H */