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commit 21e6c1f57dddf976a441c05c89b3275727821af6 Author: romainhedouin <[email protected]> AuthorDate: Fri Oct 16 22:37:20 2026 +0200 Commit: michaelni <[email protected]> CommitDate: Sun Nov 1 04:00:54 2026 +0000 avfilter/vf_nnedi: use smaller per-thread buffers The output buffer only needs one line now, and the input buffer half a frame plus five lines. Both were as big as a whole frame. For 1080p yuv420p this saves about 115 MB with 10 filter threads and about 4 MB with one. The output is unchanged. Found during a code review sweep of ffmpeg using an LLM. Signed-off-by: romainhedouin <[email protected]> --- libavfilter/vf_nnedi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavfilter/vf_nnedi.c b/libavfilter/vf_nnedi.c index bad1b669cd..78a548c81f 100644 --- a/libavfilter/vf_nnedi.c +++ b/libavfilter/vf_nnedi.c @@ -1001,7 +1001,7 @@ static int config_input(AVFilterLink *inlink) } } - s->input_size = (s->planewidth[0] + 64) * (s->planeheight[0] + 6); + s->input_size = (s->planewidth[0] + 64) * ((s->planeheight[0] + 1) / 2 + 5); s->input_buf = av_calloc(s->nb_threads, sizeof(*s->input_buf)); if (!s->input_buf) return AVERROR(ENOMEM); @@ -1017,7 +1017,7 @@ static int config_input(AVFilterLink *inlink) return AVERROR(ENOMEM); for (int i = 0; i < s->nb_threads; i++) { - s->output_buf[i] = av_calloc(s->input_size, sizeof(**s->output_buf)); + s->output_buf[i] = av_calloc(s->planewidth[0], sizeof(**s->output_buf)); if (!s->output_buf[i]) return AVERROR(ENOMEM); } -- To stop receiving notification emails like this one, please contact [email protected]. _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
