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avfilter/vaf_spectrumsynth: don't use uninitialized variable as scale

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scale was never initialized. av_tx_init() will use default scale if we
pass NULL.

Fixes: b3117f376d
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
(cherry picked from commit 6302ff1fd9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Kacper Michajłow 2025-07-17 01:34:33 +02:00 • committed by Michael Niedermayer
parent 99bdc928f5
commit a18b2da355
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GPG key ID: B18E8928B3948D64
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vaf_spectrumsynth.c
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@ -145,7 +145,7 @@ static int config_output(AVFilterLink *outlink)
int height = ctx->inputs[0]->h;
AVRational time_base = ctx->inputs[0]->time_base;
AVRational frame_rate = inl0->frame_rate;
float factor, overlap, scale;
float factor, overlap;
int i, ch, ret;
outlink->sample_rate = s->sample_rate;
@ -180,7 +180,7 @@ static int config_output(AVFilterLink *outlink)
s->win_size = s->size * 2;
s->nb_freq = s->size;
ret = av_tx_init(&s->fft, &s->tx_fn, AV_TX_FLOAT_FFT, 1, s->win_size, &scale, 0);
ret = av_tx_init(&s->fft, &s->tx_fn, AV_TX_FLOAT_FFT, 1, s->win_size, NULL, 0);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Unable to create FFT context. "
"The window size might be too high.\n");