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avfilter/signalstats: localize a few variables

This commit is contained in:
Clément Bœsch 2014-11-23 00:29:50 +01:00 committed by Clément Bœsch
parent 82dda8e4ea
commit 9cb1d81a60
1 changed files with 3 additions and 4 deletions
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7
libavfilter/vf_signalstats.c
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@ -360,7 +360,6 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
int i, j;
int w = 0, cw = 0, // in
pw = 0, cpw = 0; // prev
int yuv, yuvu, yuvv;
int fil;
char metabuf[128];
unsigned int histy[DEPTH] = {0},
@ -412,7 +411,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
// Calculate luma histogram and difference with previous frame or field.
for (j = 0; j < link->h; j++) {
for (i = 0; i < link->w; i++) {
yuv = in->data[0][w + i];
const int yuv = in->data[0][w + i];
histy[yuv]++;
dify += abs(in->data[0][w + i] - prev->data[0][pw + i]);
}
@ -423,8 +422,8 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
// Calculate chroma histogram and difference with previous frame or field.
for (j = 0; j < s->chromah; j++) {
for (i = 0; i < s->chromaw; i++) {
yuvu = in->data[1][cw+i];
yuvv = in->data[2][cw+i];
const int yuvu = in->data[1][cw+i];
const int yuvv = in->data[2][cw+i];
histu[yuvu]++;
difu += abs(in->data[1][cw+i] - prev->data[1][cpw+i]);
histv[yuvv]++;