mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-23 07:42:51 +00:00
6fa967810d
ssd_int8_vs_int16 is only called from encode_block() in svq1enc.c; it calls it in stages: At stage 0, the int16_t array contains the difference of two uint16_t. At each of the following stages, the int16_t array is filled by subtracting an int8_t from the current stage's int16_t array. The maximum stage is five, so the int16_t are in the range (-255 - 5 * 127)..(255 + 5 * 128). This commit modifies the checkasm test to only use values from this range, fixing (undefined) integer overflow in the test. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
|
|
* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU 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/mem_internal.h"
|
|
|
|
#include "libavcodec/svq1encdsp.h"
|
|
|
|
#include "checkasm.h"
|
|
|
|
#define BUF_SIZE 1024
|
|
#define MIN_VAL (-255 - 5 * 127)
|
|
#define MAX_VAL ( 255 + 5 * 128)
|
|
|
|
#define randomize(buf, len) \
|
|
do { \
|
|
for (int i = 0; i < len; i++) \
|
|
buf[i] = ((rnd() % (MAX_VAL - MIN_VAL + 1)) + MIN_VAL); \
|
|
} while (0)
|
|
|
|
static void test_ssd_int8_vs_int16(SVQ1EncDSPContext *s) {
|
|
declare_func(int, const int8_t *pix1, const int16_t *pix2, intptr_t size);
|
|
|
|
int r1, r2;
|
|
|
|
if (check_func(s->ssd_int8_vs_int16, "ssd_int8_vs_int16")) {
|
|
LOCAL_ALIGNED_4(int8_t, p1, [BUF_SIZE]);
|
|
LOCAL_ALIGNED_16(int16_t, p2, [BUF_SIZE]);
|
|
|
|
randomize(p1, BUF_SIZE);
|
|
randomize(p2, BUF_SIZE);
|
|
|
|
r1 = call_ref(p1, p2, BUF_SIZE);
|
|
r2 = call_new(p1, p2, BUF_SIZE);
|
|
|
|
if (r1 != r2) {
|
|
fail();
|
|
}
|
|
|
|
bench_new(p1, p2, BUF_SIZE);
|
|
}
|
|
|
|
report("ssd_int8_vs_int16");
|
|
|
|
}
|
|
|
|
void checkasm_check_svq1enc(void)
|
|
{
|
|
SVQ1EncDSPContext s = { 0 };
|
|
ff_svq1enc_init(&s);
|
|
|
|
test_ssd_int8_vs_int16(&s);
|
|
}
|