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Code Issues Releases Activity

avfilter/vf_curves: don't add offsets to NULL pointers

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2025-07-19 00:01:37 -03:00
parent 11032d819d
commit 722a2170e8
1 changed files with 10 additions and 6 deletions
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16
libavfilter/vf_curves.c
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@ -813,11 +813,11 @@ static int filter_slice_planar(AVFilterContext *ctx, void *arg, int jobnr, int n
uint16_t *dstrp = ( uint16_t *)(out->data[r] + y * out->linesize[r]);
uint16_t *dstgp = ( uint16_t *)(out->data[g] + y * out->linesize[g]);
uint16_t *dstbp = ( uint16_t *)(out->data[b] + y * out->linesize[b]);
uint16_t *dstap = ( uint16_t *)(out->data[a] + y * out->linesize[a]);
uint16_t *dstap = ( uint16_t *)(step == 4 ? out->data[a] + y * out->linesize[a] : NULL);
const uint16_t *srcrp = (const uint16_t *)(in ->data[r] + y * in->linesize[r]);
const uint16_t *srcgp = (const uint16_t *)(in ->data[g] + y * in->linesize[g]);
const uint16_t *srcbp = (const uint16_t *)(in ->data[b] + y * in->linesize[b]);
const uint16_t *srcap = (const uint16_t *)(in ->data[a] + y * in->linesize[a]);
const uint16_t *srcap = (const uint16_t *)(step == 4 ? in ->data[a] + y * in->linesize[a] : NULL);
for (x = 0; x < in->width; x++) {
dstrp[x] = curves->graph[R][srcrp[x]];
@ -831,11 +831,13 @@ static int filter_slice_planar(AVFilterContext *ctx, void *arg, int jobnr, int n
uint8_t *dstr = out->data[r] + slice_start * out->linesize[r];
uint8_t *dstg = out->data[g] + slice_start * out->linesize[g];
uint8_t *dstb = out->data[b] + slice_start * out->linesize[b];
uint8_t *dsta = out->data[a] + slice_start * out->linesize[a];
uint8_t *dsta = step == 4 ? out->data[a]
+ slice_start * out->linesize[a] : NULL;
const uint8_t *srcr = in->data[r] + slice_start * in->linesize[r];
const uint8_t *srcg = in->data[g] + slice_start * in->linesize[g];
const uint8_t *srcb = in->data[b] + slice_start * in->linesize[b];
const uint8_t *srca = in->data[a] + slice_start * in->linesize[a];
const uint8_t *srca = step == 4 ? in->data[a]
+ slice_start * in->linesize[a] : NULL;
for (y = slice_start; y < slice_end; y++) {
for (x = 0; x < in->width; x++) {
@ -848,11 +850,13 @@ static int filter_slice_planar(AVFilterContext *ctx, void *arg, int jobnr, int n
dstr += out->linesize[r];
dstg += out->linesize[g];
dstb += out->linesize[b];
dsta += out->linesize[a];
srcr += in ->linesize[r];
srcg += in ->linesize[g];
srcb += in ->linesize[b];
srca += in ->linesize[a];
if (step == 4) {
dsta += out->linesize[a];
srca += in ->linesize[a];
}
}
}
return 0;