dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-01-27 07:02:55 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

GetBackwardReferences: fail on alloc error

Browse Source 
previously failures in the call to
VP8LBackwardReferencesTraceBackwards() would be ignored which, though it
wouldn't result in a crash, would produce non-deterministic output

Change-Id: Id9890a60883c3270ec75e968506d46eea32b76d4
(cherry picked from commit e3cfafaf719c2e163d3548d7a415da96fdff714f)
(cherry picked from commit 20ef03ee351d4ff03fc5ff3ec4804a879d1b9d5c)
(cherry picked from commit 89e226a3c70ae04fe8e1884aa0b291f39adb2fdf)
This commit is contained in:
James Zern 2022-04-04 10:47:40 -07:00
parent 075bc46697
commit 3991eb5fef
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/enc/backward_references_enc.c
View File

@ -911,13 +911,14 @@ static VP8LBackwardRefs* GetBackwardReferences(
quality >= 25) {
const VP8LHashChain* const hash_chain_tmp =
(lz77_type_best == kLZ77Standard) ? hash_chain : &hash_chain_box;
if (VP8LBackwardReferencesTraceBackwards(width, height, argb, *cache_bits,
hash_chain_tmp, best, worst)) {
double bit_cost_trace;
VP8LHistogramCreate(histo, worst, *cache_bits);
bit_cost_trace = VP8LHistogramEstimateBits(histo);
if (bit_cost_trace < bit_cost_best) best = worst;
double bit_cost_trace;
if (!VP8LBackwardReferencesTraceBackwards(width, height, argb, *cache_bits,
hash_chain_tmp, best, worst)) {
goto Error;
}
VP8LHistogramCreate(histo, worst, *cache_bits);
bit_cost_trace = VP8LHistogramEstimateBits(histo);
if (bit_cost_trace < bit_cost_best) best = worst;
}
BackwardReferences2DLocality(width, best);