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pan: raise correct error when there is no param specified.

This commit is contained in:
Clément Bœsch 2012-01-17 11:01:37 +01:00 committed by Clément Bœsch
parent 0bb57f8bf0
commit 66fdbcbbc9
1 changed files with 6 additions and 0 deletions
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6
libavfilter/af_pan.c
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@ -95,6 +95,12 @@ static av_cold int init(AVFilterContext *ctx, const char *args0, void *opaque)
int nb_in_channels[2] = { 0, 0 }; // number of unnamed and named input channels
double gain;
if (!args0) {
av_log(ctx, AV_LOG_ERROR,
"pan filter needs a channel layout and a set "
"of channels definitions as parameter\n");
return AVERROR(EINVAL);
}
if (!args)
return AVERROR(ENOMEM);
arg = av_strtok(args, ":", &tokenizer);