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commit 6df8174f7758a66837f3c9ed9986d0c51a818ace Author: Niklas Haas <[email protected]> AuthorDate: Tue Jan 13 11:19:00 2026 +0100 Commit: Niklas Haas <[email protected]> CommitDate: Thu Feb 19 19:44:46 2026 +0000 swscale/optimizer: don't reject op lists without read When splitting planes, some planes can end up without a read operation altogether, e.g. when just clearing the alpha plane. Just return ENOTSUP for such lists instead of EINVAL. Also fixes the !ops->num_ops check to avoid UB. Sponsored-by: Sovereign Tech Fund Signed-off-by: Niklas Haas <[email protected]> --- libswscale/ops_optimizer.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/libswscale/ops_optimizer.c b/libswscale/ops_optimizer.c index 9aaca80408..9e6817ffcc 100644 --- a/libswscale/ops_optimizer.c +++ b/libswscale/ops_optimizer.c @@ -645,13 +645,15 @@ int ff_sws_solve_shuffle(const SwsOpList *const ops, uint8_t shuffle[], int size, uint8_t clear_val, int *read_bytes, int *write_bytes) { + if (!ops->num_ops) + return AVERROR(EINVAL); + const SwsOp read = ops->ops[0]; const int read_size = ff_sws_pixel_type_size(read.type); uint32_t mask[4] = {0}; - if (!ops->num_ops || read.op != SWS_OP_READ) - return AVERROR(EINVAL); - if (read.rw.frac || (!read.rw.packed && read.rw.elems > 1)) + if (read.op != SWS_OP_READ || read.rw.frac || + (!read.rw.packed && read.rw.elems > 1)) return AVERROR(ENOTSUP); for (int i = 0; i < read.rw.elems; i++) _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
