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avfilter/af_channelmap: Use av_mallocz_array()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -312,7 +312,7 @@ static int channelmap_filter_frame(AVFilterLink *inlink, AVFrame *buf)
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if (nch_out > nch_in) {
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if (nch_out > FF_ARRAY_ELEMS(buf->data)) {
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uint8_t **new_extended_data =
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av_mallocz(nch_out * sizeof(*buf->extended_data));
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av_mallocz_array(nch_out, sizeof(*buf->extended_data));
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if (!new_extended_data) {
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av_frame_free(&buf);
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return AVERROR(ENOMEM);
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