chasing indexing error

1 files changed, 0 insertions, 132 deletions

diff --git a/ffmpeg/libavutil/adler32.c b/ffmpeg/libavutil/adler32.c
deleted file mode 100644
index 579d022..0000000
--- a/ffmpeg/libavutil/adler32.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Compute the Adler-32 checksum of a data stream.
- * This is a modified version based on adler32.c from the zlib library.
- *
- * Copyright (C) 1995 Mark Adler
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software. If you use this software
- *    in a product, an acknowledgment in the product documentation would be
- *    appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- */
-
-/**
- * @file
- * Computes the Adler-32 checksum of a data stream
- *
- * This is a modified version based on adler32.c from the zlib library.
- * @author Mark Adler
- * @ingroup lavu_adler32
- */
-
-#include "config.h"
-#include "adler32.h"
-#include "common.h"
-#include "intreadwrite.h"
-
-#define BASE 65521L /* largest prime smaller than 65536 */
-
-#define DO1(buf)  { s1 += *buf++; s2 += s1; }
-#define DO4(buf)  DO1(buf); DO1(buf); DO1(buf); DO1(buf);
-#define DO16(buf) DO4(buf); DO4(buf); DO4(buf); DO4(buf);
-
-unsigned long av_adler32_update(unsigned long adler, const uint8_t * buf,
-                                unsigned int len)
-{
-    unsigned long s1 = adler & 0xffff;
-    unsigned long s2 = adler >> 16;
-
-    while (len > 0) {
-#if HAVE_FAST_64BIT && HAVE_FAST_UNALIGNED && !CONFIG_SMALL
-        unsigned len2 = FFMIN((len-1) & ~7, 23*8);
-        if (len2) {
-            uint64_t a1= 0;
-            uint64_t a2= 0;
-            uint64_t b1= 0;
-            uint64_t b2= 0;
-            len -= len2;
-            s2 += s1*len2;
-            while (len2 >= 8) {
-                uint64_t v = AV_RN64(buf);
-                a2 += a1;
-                b2 += b1;
-                a1 +=  v    &0x00FF00FF00FF00FF;
-                b1 += (v>>8)&0x00FF00FF00FF00FF;
-                len2 -= 8;
-                buf+=8;
-            }
-
-            //We combine the 8 interleaved adler32 checksums without overflows
-            //Decreasing the number of iterations would allow below code to be
-            //simplified but would likely be slower due to the fewer iterations
-            //of the inner loop
-            s1 += ((a1+b1)*0x1000100010001)>>48;
-            s2 += ((((a2&0xFFFF0000FFFF)+(b2&0xFFFF0000FFFF)+((a2>>16)&0xFFFF0000FFFF)+((b2>>16)&0xFFFF0000FFFF))*0x800000008)>>32)
-#if HAVE_BIGENDIAN
-                 + 2*((b1*0x1000200030004)>>48)
-                 +   ((a1*0x1000100010001)>>48)
-                 + 2*((a1*0x0000100020003)>>48);
-#else
-                 + 2*((a1*0x4000300020001)>>48)
-                 +   ((b1*0x1000100010001)>>48)
-                 + 2*((b1*0x3000200010000)>>48);
-#endif
-        }
-#else
-        while (len > 4  && s2 < (1U << 31)) {
-            DO4(buf);
-            len -= 4;
-        }
-#endif
-        DO1(buf); len--;
-        s1 %= BASE;
-        s2 %= BASE;
-    }
-    return (s2 << 16) | s1;
-}
-
-#ifdef TEST
-// LCOV_EXCL_START
-#include <string.h>
-#include "log.h"
-#include "timer.h"
-#define LEN 7001
-
-static volatile int checksum;
-
-int main(int argc, char **argv)
-{
-    int i;
-    char data[LEN];
-
-    av_log_set_level(AV_LOG_DEBUG);
-
-    for (i = 0; i < LEN; i++)
-        data[i] = ((i * i) >> 3) + 123 * i;
-
-    if (argc > 1 && !strcmp(argv[1], "-t")) {
-        for (i = 0; i < 1000; i++) {
-            START_TIMER;
-            checksum = av_adler32_update(1, data, LEN);
-            STOP_TIMER("adler");
-        }
-    } else {
-        checksum = av_adler32_update(1, data, LEN);
-    }
-
-    av_log(NULL, AV_LOG_DEBUG, "%X (expected 50E6E508)\n", checksum);
-    return checksum == 0x50e6e508 ? 0 : 1;
-}
-// LCOV_EXCL_STOP
-#endif