FAST_TMIX_SLICE can work properly only in the case the filter is run
from the start and has never been disabled. Therefore, once s->fast
is set to 0, it shall never be set back to 1.
Signed-off-by: Ignacy Gawędzki <b...@qult.net>
---
libavfilter/vf_mix.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavfilter/vf_mix.c b/libavfilter/vf_mix.c
index 517bb2450f..c996cdd9fb 100644
--- a/libavfilter/vf_mix.c
+++ b/libavfilter/vf_mix.c
@@ -88,7 +88,6 @@ static int parse_weights(AVFilterContext *ctx)
char *p, *arg, *saveptr = NULL;
int i, last = 0;
- s->fast = 1;
s->wfactor = 0.f;
p = s->weights_str;
for (i = 0; i < s->nb_inputs; i++) {
@@ -150,6 +149,8 @@ static av_cold int init(AVFilterContext *ctx)
}
}
+ s->fast = 1;
+
return parse_weights(ctx);
}
@@ -295,6 +296,7 @@ static int process_frame(FFFrameSync *fs)
}
if (ctx->is_disabled) {
+ s->fast = 0;
out = av_frame_clone(s->frames[0]);
if (!out)
return AVERROR(ENOMEM);
@@ -506,6 +508,7 @@ static int tmix_filter_frame(AVFilterLink *inlink, AVFrame
*in)
}
if (ctx->is_disabled) {
+ s->fast = 0;
out = av_frame_clone(s->frames[0]);
if (!out)
return AVERROR(ENOMEM);
--
2.48.1
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