ffv1: Make sure at least one slice context is initialized

This avoids crashes when initializing the range coder for the first slice context.

Martin Storsjö committed 13 years ago

Commit b1db3311 parent ea78a341 file · +4 −0Browse files

Unified · Split

@@ -194,6 +194,10 @@ av_cold int ffv1_init_slice_contexts(FFV1Context *f) · 193 unmodified lines
194	194	int i;
195	195
196	196	f->slice_count = f->num_h_slices * f->num_v_slices;
	197	+ if (f->slice_count <= 0) {
	198	+ av_log(f->avctx, AV_LOG_ERROR, "Invalid number of slices\n");
	199	+ return AVERROR(EINVAL);
	200	+ }
197	201
198	202	for (i = 0; i < f->slice_count; i++) {
199	203	FFV1Context fs = av_mallocz(sizeof(fs));

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