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avfilter/avf_showspectrum: fix null pointer dereference if allocation fails

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-01-02 11:49:15 +01:00
parent 9b06e7befa
commit d35c029cbf
1 changed files with 8 additions and 4 deletions
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12
libavfilter/avf_showspectrum.c
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@ -194,12 +194,16 @@ static av_cold void uninit(AVFilterContext *ctx)
av_freep(&s->combine_buffer);
av_rdft_end(s->rdft);
for (i = 0; i < s->nb_display_channels; i++)
av_freep(&s->rdft_data[i]);
if (s->rdft_data) {
for (i = 0; i < s->nb_display_channels; i++)
av_freep(&s->rdft_data[i]);
}
av_freep(&s->rdft_data);
av_freep(&s->window_func_lut);
for (i = 0; i < s->nb_display_channels; i++)
av_freep(&s->magnitudes[i]);
if (s->magnitudes) {
for (i = 0; i < s->nb_display_channels; i++)
av_freep(&s->magnitudes[i]);
}
av_freep(&s->magnitudes);
av_frame_free(&s->outpicref);
av_audio_fifo_free(s->fifo);