#7140: minterpolate filter does not work on huge video files
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Reporter: kerchroot | Owner:
Type: enhancement | Status: new
Priority: wish | Component: avfilter
Version: git-master | Resolution:
Keywords: minterpolate | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by cehoyos):
Please test the following inlined patch with `-max_alloc`
{{{
diff --git a/libavfilter/vf_minterpolate.c b/libavfilter/vf_minterpolate.c
index b0bb238ade..d64f48a548 100644
--- a/libavfilter/vf_minterpolate.c
+++ b/libavfilter/vf_minterpolate.c
@@ -361,9 +361,11 @@ static int config_input(AVFilterLink *inlink)
}
if (mi_ctx->mi_mode == MI_MODE_MCI) {
- mi_ctx->pixel_mvs = av_mallocz_array(width * height,
sizeof(PixelMVS));
- mi_ctx->pixel_weights = av_mallocz_array(width * height,
sizeof(PixelWeights));
- mi_ctx->pixel_refs = av_mallocz_array(width * height,
sizeof(PixelRefs));
+ if (width * height < SIZE_MAX / 4 / FFMAX3(sizeof(PixelMVS),
sizeof(PixelWeights), sizeof(PixelRefs))) {
+ mi_ctx->pixel_mvs = av_mallocz(width * height *
sizeof(PixelMVS));
+ mi_ctx->pixel_weights = av_mallocz(width * height *
sizeof(PixelWeights));
+ mi_ctx->pixel_refs = av_mallocz(width * height *
sizeof(PixelRefs));
+ }
if (!mi_ctx->pixel_mvs || !mi_ctx->pixel_weights ||
!mi_ctx->pixel_refs) {
ret = AVERROR(ENOMEM);
goto fail;
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7140#comment:7>
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