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Code Issues Releases Activity

avfilter/avf_showspectrum: do not use uninitialized memory

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This commit is contained in:
Paul B Mahol 2016-08-18 18:40:00 +02:00
parent 703ae350c2
commit b3c6e89d48
1 changed files with 2 additions and 3 deletions
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5
libavfilter/avf_showspectrum.c
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@ -380,7 +380,7 @@ static int config_output(AVFilterLink *outlink)
if (!s->color_buffer)
return AVERROR(ENOMEM);
for (i = 0; i < s->nb_display_channels; i++) {
s->color_buffer[i] = av_malloc_array(s->orientation == VERTICAL ? s->h * 3 : s->w * 3, sizeof(**s->color_buffer));
s->color_buffer[i] = av_calloc(s->orientation == VERTICAL ? s->h * 3 : s->w * 3, sizeof(**s->color_buffer));
if (!s->color_buffer[i])
return AVERROR(ENOMEM);
}
@ -730,8 +730,7 @@ static int plot_spectrum_column(AVFilterLink *inlink, AVFrame *insamples)
ctx->internal->execute(ctx, plot_channel, NULL, NULL, s->nb_display_channels);
for (y = 0; y < z * 3; y++) {
s->combine_buffer[y] += s->color_buffer[0][y];
for (x = 1; x < s->nb_display_channels; x++) {
for (x = 0; x < s->nb_display_channels; x++) {
s->combine_buffer[y] += s->color_buffer[x][y];
}
}