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Code Issues Releases Activity

avfilter/vf_v360: add padding to u/v/ker

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Fixes use of uninitialized variables.
This commit is contained in:
Paul B Mahol 2019-09-09 18:36:56 +02:00
parent 29bde4b3b6
commit 558265d4bc
2 changed files with 15 additions and 9 deletions
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1
libavfilter/v360.h
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@ -110,6 +110,7 @@ typedef struct V360Context {
int planewidth[4], planeheight[4];
int inplanewidth[4], inplaneheight[4];
int uv_linesize[4];
int nb_planes;
int nb_allocated;

23
libavfilter/vf_v360.c
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@ -222,6 +222,7 @@ static int remap##ws##_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jo
for (int plane = 0; plane < s->nb_planes; plane++) { \
const int in_linesize = in->linesize[plane]; \
const int out_linesize = out->linesize[plane]; \
const int uv_linesize = s->uv_linesize[plane]; \
const uint8_t *src = in->data[plane]; \
uint8_t *dst = out->data[plane]; \
const int width = s->planewidth[plane]; \
@ -232,9 +233,9 @@ static int remap##ws##_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jo
\
for (int y = slice_start; y < slice_end; y++) { \
const unsigned map = s->map[plane]; \
const uint16_t *u = s->u[map] + y * width * ws * ws; \
const uint16_t *v = s->v[map] + y * width * ws * ws; \
const int16_t *ker = s->ker[map] + y * width * ws * ws; \
const uint16_t *u = s->u[map] + y * uv_linesize * ws * ws; \
const uint16_t *v = s->v[map] + y * uv_linesize * ws * ws; \
const int16_t *ker = s->ker[map] + y * uv_linesize * ws * ws; \
\
s->remap_line(dst + y * out_linesize, width, src, in_linesize, u, v, ker); \
} \
@ -2035,12 +2036,12 @@ static inline void mirror(const float *modifier, float *vec)
static int allocate_plane(V360Context *s, int sizeof_uv, int sizeof_ker, int p)
{
s->u[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_uv);
s->v[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_uv);
s->u[p] = av_calloc(s->uv_linesize[p] * s->planeheight[p], sizeof_uv);
s->v[p] = av_calloc(s->uv_linesize[p] * s->planeheight[p], sizeof_uv);
if (!s->u[p] || !s->v[p])
return AVERROR(ENOMEM);
if (sizeof_ker) {
s->ker[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_ker);
s->ker[p] = av_calloc(s->uv_linesize[p] * s->planeheight[p], sizeof_ker);
if (!s->ker[p])
return AVERROR(ENOMEM);
}
@ -2266,6 +2267,9 @@ static int config_output(AVFilterLink *outlink)
s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(w, desc->log2_chroma_w);
s->planewidth[0] = s->planewidth[3] = w;
for (int i = 0; i < 4; i++)
s->uv_linesize[i] = FFALIGN(s->planewidth[i], 8);
outlink->h = h;
outlink->w = w;
@ -2303,6 +2307,7 @@ static int config_output(AVFilterLink *outlink)
// Calculate remap data
for (p = 0; p < s->nb_allocated; p++) {
const int width = s->planewidth[p];
const int uv_linesize = s->uv_linesize[p];
const int height = s->planeheight[p];
const int in_width = s->inplanewidth[p];
const int in_height = s->inplaneheight[p];
@ -2313,9 +2318,9 @@ static int config_output(AVFilterLink *outlink)
for (i = 0; i < width; i++) {
for (j = 0; j < height; j++) {
uint16_t *u = s->u[p] + (j * width + i) * elements;
uint16_t *v = s->v[p] + (j * width + i) * elements;
int16_t *ker = s->ker[p] + (j * width + i) * elements;
uint16_t *u = s->u[p] + (j * uv_linesize + i) * elements;
uint16_t *v = s->v[p] + (j * uv_linesize + i) * elements;
int16_t *ker = s->ker[p] + (j * uv_linesize + i) * elements;
if (s->out_transpose)
out_transform(s, j, i, height, width, vec);