From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 3/4] avcodec/ffv1enc: Consider 2s x s slice configurations
Date: Thu, 3 Apr 2025 12:50:48 +0200
Message-ID: <20250403105049.883948-3-michael@niedermayer.cc> (raw)
In-Reply-To: <20250403105049.883948-1-michael@niedermayer.cc>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/ffv1enc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 70821a10159..ce3f8e023e5 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -570,7 +570,7 @@ int ff_ffv1_encode_determine_slices(AVCodecContext *avctx)
s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
s->num_v_slices = FFMIN(s->num_v_slices, max_v_slices);
for (; s->num_v_slices < 32; s->num_v_slices++) {
- for (s->num_h_slices = s->num_v_slices; s->num_h_slices < 2*s->num_v_slices; s->num_h_slices++) {
+ for (s->num_h_slices = s->num_v_slices; s->num_h_slices <= 2*s->num_v_slices; s->num_h_slices++) {
int maxw = (avctx->width + s->num_h_slices - 1) / s->num_h_slices;
int maxh = (avctx->height + s->num_v_slices - 1) / s->num_v_slices;
if (s->num_h_slices > max_h_slices || s->num_v_slices > max_v_slices)
--
2.49.0
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next prev parent reply other threads:[~2025-04-03 10:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-03 10:50 [FFmpeg-devel] [PATCH 1/4] avcodec/ffv1dec: Limit size of fltmap* to pixel number Michael Niedermayer
2025-04-03 10:50 ` [FFmpeg-devel] [PATCH 2/4] avcodec/ffv1enc: Remove 65536 pixel per slice limit for remap Michael Niedermayer
2025-04-03 10:50 ` Michael Niedermayer [this message]
2025-04-03 10:50 ` [FFmpeg-devel] [PATCH 4/4] avcodec/ffv1enc: avoid slices larger than 360x288 if no value is specified Michael Niedermayer
2025-04-06 23:29 ` James Almer
2025-04-06 23:44 ` Michael Niedermayer
2025-04-07 1:13 ` James Almer
2025-04-07 12:35 ` Michael Niedermayer
2025-04-06 18:43 ` [FFmpeg-devel] [PATCH 1/4] avcodec/ffv1dec: Limit size of fltmap* to pixel number Michael Niedermayer
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