avfilter/f_ebur128: make sure frame is writable before writing to it

Paul B Mahol committed 4 years ago

Commit dc8e83b1 parent aede8421 file · +1 −0Browse files

Unified · Split

@@ -818,6 +818,7 @@ static int filter_frame(AVFilterLink inlink, AVFrame insamples) · 817 unmodified lines
818	818	y_loudness_lu_graph = lu_to_y(ebur128, loudness_3000 - ebur128->target);
819	819	y_loudness_lu_gauge = lu_to_y(ebur128, gauge_value);
820	820
	821	+ av_frame_make_writable(pic);
821	822	/* draw the graph using the short-term loudness */
822	823	p = pic->data[0] + ebur128->graph.ypic->linesize[0] + ebur128->graph.x3;
823	824	for (y = 0; y < ebur128->graph.h; y++) {

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