[mythtv] CLE266 Optimization

[Jamison Wilde]

In 
void VideoOutputVIA::DrawSlice(VideoFrame *frame, int
x, int y, int w, int h)
...
    memset(data->tempbuffer, 0, curdata->slice_datalen
+ 32);
    memcpy(data->tempbuffer, curdata->slice_data,
curdata->slice_datalen);
...

Should be changed to:
    memset(data->tempbuffer + curdata->slice_datalen,
0, 32);
    memcpy(data->tempbuffer, curdata->slice_data,
curdata->slice_datalen);


As the memset is unnecessary on the area of the buffer
about to receive a copy.



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