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16 lines
603 B
Diff
16 lines
603 B
Diff
Adapted from upstream commit 995a4283d8ed2d0d2c1ceb1a577b993df2f0e014
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--- a/libheif/heif_context.cc
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+++ b/libheif/heif_context.cc
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@@ -571,6 +571,11 @@
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image->set_is_alpha_channel_of(refs[0]);
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auto master_iter = m_all_images.find(refs[0]);
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+ if (master_iter == m_all_images.end()) {
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+ return Error(heif_error_Invalid_input,
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+ heif_suberror_Nonexisting_item_referenced,
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+ "Non-existing alpha image referenced");
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+ }
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master_iter->second->set_alpha_channel(image);
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}
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