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avfilter/af_pan: fix null pointer dereference on empty token

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Fixes Coverity CID 1396254.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
2017-02-05 02:25:04 +01:00
parent 326b1ed93e
commit e57fd926b0
1 changed files with 5 additions and 0 deletions
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5
libavfilter/af_pan.c
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@@ -115,6 +115,11 @@ static av_cold int init(AVFilterContext *ctx)
if (!args) if (!args)
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
arg = av_strtok(args, "|", &tokenizer); arg = av_strtok(args, "|", &tokenizer);
if (!arg) {
av_log(ctx, AV_LOG_ERROR, "Channel layout not specified\n");
ret = AVERROR(EINVAL);
goto fail;
}
ret = ff_parse_channel_layout(&pan->out_channel_layout, ret = ff_parse_channel_layout(&pan->out_channel_layout,
&pan->nb_output_channels, arg, ctx); &pan->nb_output_channels, arg, ctx);
if (ret < 0) if (ret < 0)