From 304cc0379870ebf155502069939582f1065ef3b5 Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Wed, 6 Oct 2021 16:33:00 +0200 Subject: [PATCH] avfilter/asrc_flite: Don't segfault when using list_voices option Could also happen if initializing flite failed* or if an unknown voice has been selected or if registering the voice failed. *: which it currently can't, because it is a no-op. Reviewed-by: Paul B Mahol Signed-off-by: Andreas Rheinhardt --- libavfilter/asrc_flite.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/libavfilter/asrc_flite.c b/libavfilter/asrc_flite.c index c861f5c238..0789dd6ff3 100644 --- a/libavfilter/asrc_flite.c +++ b/libavfilter/asrc_flite.c @@ -196,10 +196,12 @@ static av_cold void uninit(AVFilterContext *ctx) { FliteContext *flite = ctx->priv; - if (!--flite->voice_entry->usage_count) - flite->voice_entry->unregister_fn(flite->voice); - flite->voice = NULL; - flite->voice_entry = NULL; + if (flite->voice_entry) { + if (!--flite->voice_entry->usage_count) + flite->voice_entry->unregister_fn(flite->voice); + flite->voice = NULL; + flite->voice_entry = NULL; + } delete_wave(flite->wave); flite->wave = NULL; }