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From: post@frankplowman.com
To: ffmpeg-devel@ffmpeg.org
Cc: Frank Plowman <post@frankplowman.com>
Subject: [FFmpeg-devel] [PATCH] lavc/vvc: Use av_log2 when destination is integer
Date: Thu, 25 Jan 2024 17:05:18 +0000
Message-ID: <20240125170518.61211-1-post@frankplowman.com> (raw)

From: Frank Plowman <post@frankplowman.com>

Signed-off-by: Frank Plowman <post@frankplowman.com>
---
 libavcodec/vvc/vvc_ctu.c | 4 ++--
 libavcodec/vvc/vvc_ps.c  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/vvc/vvc_ctu.c b/libavcodec/vvc/vvc_ctu.c
index 307bc3490e..d166b16a19 100644
--- a/libavcodec/vvc/vvc_ctu.c
+++ b/libavcodec/vvc/vvc_ctu.c
@@ -257,8 +257,8 @@ static TransformBlock* add_tb(TransformUnit *tu, VVCLocalContext *lc,
     tb->y0 = y0;
     tb->tb_width  = tb_width;
     tb->tb_height = tb_height;
-    tb->log2_tb_width  = log2(tb_width);
-    tb->log2_tb_height = log2(tb_height);
+    tb->log2_tb_width  = av_log2(tb_width);
+    tb->log2_tb_height = av_log2(tb_height);
 
     tb->max_scan_x = tb->max_scan_y = 0;
     tb->min_scan_x = tb->min_scan_y = 0;
diff --git a/libavcodec/vvc/vvc_ps.c b/libavcodec/vvc/vvc_ps.c
index ac96ed9f43..c2afc0ac93 100644
--- a/libavcodec/vvc/vvc_ps.c
+++ b/libavcodec/vvc/vvc_ps.c
@@ -910,7 +910,7 @@ static void scaling_derive(VVCScalingList *sl, const H266RawAPS *aps)
 {
     for (int id = 0; id < SL_MAX_ID; id++) {
         const int matrix_size   = derive_matrix_size(id);
-        const int log2_size     = log2(matrix_size);
+        const int log2_size     = av_log2(matrix_size);
         const int list_size     = matrix_size * matrix_size;
         int coeff[SL_MAX_MATRIX_SIZE * SL_MAX_MATRIX_SIZE];
         const uint8_t *pred;
-- 
2.43.0

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             reply	other threads:[~2024-01-25 17:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-25 17:05 post [this message]
2024-01-26  4:43 ` Nuo Mi
2024-01-26 18:50   ` James Almer

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