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From: "Clément Bœsch" <u@pkh.me>
To: ffmpeg-devel@ffmpeg.org
Cc: "Clément Bœsch" <u@pkh.me>
Subject: [FFmpeg-devel] [PATCH v2 12/32] avfilter/palettegen: use box->major_axis without intermediate variable
Date: Wed, 28 Dec 2022 00:17:54 +0100
Message-ID: <20221227231814.2520181-13-u@pkh.me> (raw)
In-Reply-To: <20221227231814.2520181-1-u@pkh.me>

---
 libavfilter/vf_palettegen.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/libavfilter/vf_palettegen.c b/libavfilter/vf_palettegen.c
index ed1448755c..aa0c8fdc5b 100644
--- a/libavfilter/vf_palettegen.c
+++ b/libavfilter/vf_palettegen.c
@@ -363,22 +363,21 @@ static AVFrame *get_palette_frame(AVFilterContext *ctx)
     s->nb_boxes = 1;
 
     while (box && box->len > 1) {
-        int i, longest;
+        int i;
         uint64_t median, box_weight;
 
         compute_box_stats(s, box);
-        longest = box->major_axis;
         box_weight = box->weight;
 
         ff_dlog(ctx, "box #%02X [%6d..%-6d] (%6d) w:%-6"PRIu64" sort by %c (already sorted:%c) ",
                 box_id, box->start, box->start + box->len - 1, box->len, box_weight,
-                "rgb"[longest], box->sorted_by == longest ? 'y':'n');
+                "rgb"[box->major_axis], box->sorted_by == box->major_axis ? 'y':'n');
 
-        /* sort the range by its longest axis if it's not already sorted */
-        if (box->sorted_by != longest) {
-            cmp_func cmpf = cmp_funcs[longest];
+        /* sort the range by its major axis if it's not already sorted */
+        if (box->sorted_by != box->major_axis) {
+            cmp_func cmpf = cmp_funcs[box->major_axis];
             AV_QSORT(&s->refs[box->start], box->len, const struct color_ref *, cmpf);
-            box->sorted_by = longest;
+            box->sorted_by = box->major_axis;
         }
 
         /* locate the median where to split */
-- 
2.39.0

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  parent reply	other threads:[~2022-12-27 23:19 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-05 15:26 [FFmpeg-devel] Rework color quantization in palette{gen,use} Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 01/15] Revert "avfilter/vf_palette(gen|use): support palettes with alpha" Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 02/15] avfilter: add palette utils Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 03/15] avfilter/palette{use, gen}: simplify a few alpha masks Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 04/15] avfilter/paletteuse: switch from u8[4] to u32 for color code Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 05/15] avfilter/paletteuse: name target color arg consistently in colormap functions Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 06/15] avfilter/paletteuse: remove unused alpha split dimension Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 07/15] avfilter/paletteuse: remove redundant alpha condition Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 08/15] avfilter/paletteuse: switch to a perceptual model Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 09/15] avfilter/palettegen: average color in linear space Clément Bœsch
2022-11-05 15:39   ` Paul B Mahol
2022-11-05 18:50     ` Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 10/15] avfilter/palettegen: move box variance computation in a dedicated function Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 11/15] avfilter/palettegen: comment on the unnormalized variance Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 12/15] avfilter/palettegen: base split decision on a perceptual model Clément Bœsch
2022-11-05 19:07   ` Andreas Rheinhardt
2022-11-08 21:09     ` Clément Bœsch
2022-12-27 23:20     ` Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 13/15] avfilter/palettegen: use variance per-axis instead of the range Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 14/15] avfilter/palettegen: rename longest to split_axis Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 15/15] avfilter/palette{use, gen}: update Copyright after recent changes Clément Bœsch
2022-11-05 15:44 ` [FFmpeg-devel] Rework color quantization in palette{gen,use} Paul B Mahol
2022-11-05 18:54   ` Clément Bœsch
2022-11-06 13:19     ` Ronald S. Bultje
2022-11-08 21:22       ` Clément Bœsch
2022-11-05 21:52 ` Soft Works
2022-11-06 17:09 ` Michael Niedermayer
2022-11-06 17:30   ` Michael Niedermayer
2022-11-08 21:14     ` Clément Bœsch
2022-12-31 12:11     ` Clément Bœsch
2023-01-02 21:57       ` Michael Niedermayer
2023-01-02 23:05         ` Clément Bœsch
2023-01-03 18:50           ` Michael Niedermayer
2022-11-06 19:46 ` Soft Works
2022-11-08 21:07   ` Clément Bœsch
2022-11-08 22:37     ` Soft Works
2022-12-27 23:31       ` Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] New iteration for the color quantization in palette{gen, use} Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 01/32] avfilter/palettegen: allow a minimum of 2 colors Clément Bœsch
2022-12-28 21:04     ` Tomas Härdin
2022-12-28 21:23       ` Clément Bœsch
2023-01-03 18:59         ` Tomas Härdin
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 02/32] avfilter/palette{gen, use}: revert support palettes with alpha Clément Bœsch
2023-01-03 19:11     ` Paul B Mahol
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 03/32] avfilter/palette{gen, use}: simplify a few alpha masks Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 04/32] avfilter/palette{gen, use}: add palette utils Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 05/32] avfilter/paletteuse: switch from u8[4] to u32 for color code Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 06/32] avfilter/paletteuse: name target color arg consistently in colormap functions Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 07/32] avfilter/paletteuse: remove unused alpha split dimension Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 08/32] avfilter/paletteuse: remove redundant alpha condition Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 09/32] avfilter/paletteuse: switch to a perceptual model Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 10/32] avfilter/palettegen: move box stats computation to a dedicated function Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 11/32] avfilter/palettegen: define the best axis to cut using the squared error Clément Bœsch
2022-12-27 23:17   ` Clément Bœsch [this message]
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 13/32] avfilter/palettegen: always compute the box variance Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 14/32] avfilter/palettegen: rename variance to cut_score Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 15/32] avfilter/palettegen: change cut score from ∑e² to max e² Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 16/32] avfilter/palettegen: compute average color within compute_box_stats() Clément Bœsch
2022-12-27 23:17   ` [FFmpeg-devel] [PATCH v2 17/32] avfilter/palettegen: misc cosmetics Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 18/32] avfilter/palettegen: rename local variable box_weight to weight Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 19/32] avfilter/palettegen: switch to signed arithmetic Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 20/32] avfilter/palettegen: base box split decision on a perceptual model Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 21/32] avfilter/palettegen: add a warning about supporting only sRGB Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 22/32] avfilter/palettegen: make refs order deterministic Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 23/32] avfilter/palettegen: use libc qsort Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 24/32] avfilter/palette{gen, use}: update Copyright after recent changes Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 25/32] avfilter/palette: add lowbias32 hashing Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 26/32] avfilter/palettegen: use lowbias32 for color hashing Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 27/32] avfilter/paletteuse: " Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 28/32] avfilter/paletteuse: switch to recursive method Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 29/32] avfilter/paletteuse: remove alternative search methods Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 30/32] avfilter/paletteuse: remove mean error tool Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 31/32] avfilter/paletteuse: move r, g, b computation in a more local scope Clément Bœsch
2022-12-27 23:18   ` [FFmpeg-devel] [PATCH v2 32/32] avfilter/palette{gen, use}: misc for-loop cosmetics Clément Bœsch
2023-01-03 16:28   ` [FFmpeg-devel] New iteration for the color quantization in palette{gen, use} Clément Bœsch

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