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tools/coverity: Phase 1 study of anti-halicogenic for coverity av_rescale()

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer 2024-07-01 23:18:47 +02:00
parent 7ba8982181
commit 380a8213b1
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1 changed files with 18 additions and 0 deletions
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18
tools/coverity.c
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@ -31,6 +31,17 @@
#define NULL (void *)0
typedef long long int64_t;
enum AVRounding {
AV_ROUND_ZERO = 0,
AV_ROUND_INF = 1,
AV_ROUND_DOWN = 2,
AV_ROUND_UP = 3,
AV_ROUND_NEAR_INF = 5,
AV_ROUND_PASS_MINMAX = 8192,
};
// Based on https://scan.coverity.com/models
void *av_malloc(size_t size) {
int has_memory;
@ -77,3 +88,10 @@ void *av_free(void *ptr) {
__coverity_mark_as_afm_freed__(ptr, "av_free");
}
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd) {
__coverity_negative_sink__(b);
__coverity_negative_sink__(c);
return (double)a * (double)b / (double)c;
}