1 files changed, 0 insertions, 49 deletions
diff --git a/ffmpeg/libavcodec/pngdsp.c b/ffmpeg/libavcodec/pngdsp.c
deleted file mode 100644
index 5ab1c35..0000000
--- a/ffmpeg/libavcodec/pngdsp.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * PNG image format
- * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
- *
- * 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
- */
-
-#include "libavutil/attributes.h"
-#include "libavutil/common.h"
-#include "png.h"
-#include "pngdsp.h"
-
-// 0x7f7f7f7f or 0x7f7f7f7f7f7f7f7f or whatever, depending on the cpu's native arithmetic size
-#define pb_7f (~0UL/255 * 0x7f)
-#define pb_80 (~0UL/255 * 0x80)
-
-static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
-{
-    long i;
-    for (i = 0; i <= w - (int)sizeof(long); i += sizeof(long)) {
-        long a = *(long *)(src1 + i);
-        long b = *(long *)(src2 + i);
-        *(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);
-    }
-    for (; i < w; i++)
-        dst[i] = src1[i] + src2[i];
-}
-
-av_cold void ff_pngdsp_init(PNGDSPContext *dsp)
-{
-    dsp->add_bytes_l2         = add_bytes_l2_c;
-    dsp->add_paeth_prediction = ff_add_png_paeth_prediction;
-
-    if (ARCH_X86) ff_pngdsp_init_x86(dsp);
-}