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Code Issues Releases Activity

avfilter/palette{gen,use}: simplify a few alpha masks

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This commit is contained in:
Clément Bœsch
2022-10-31 12:22:41 +01:00
parent 320fbf5f24
commit 7bc054e63c
1 changed files with 7 additions and 7 deletions
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14
libavfilter/vf_paletteuse.c
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@@ -156,7 +156,7 @@ static int query_formats(AVFilterContext *ctx)
static av_always_inline uint32_t dither_color(uint32_t px, int er, int eg,
int eb, int scale, int shift)
{
return px >> 24 << 24
return (px & 0xff000000)
| av_clip_uint8((px >> 16 & 0xff) + ((er * scale) / (1<<shift))) << 16
| av_clip_uint8((px >> 8 & 0xff) + ((eg * scale) / (1<<shift))) << 8
| av_clip_uint8((px & 0xff) + ((eb * scale) / (1<<shift)));
@@ -187,7 +187,7 @@ static av_always_inline uint8_t colormap_nearest_bruteforce(const uint32_t *pale
if (c >> 24 >= trans_thresh) { // ignore transparent entry
const uint8_t palargb[] = {
palette[i]>>24 & 0xff,
palette[i]>>24,
palette[i]>>16 & 0xff,
palette[i]>> 8 & 0xff,
palette[i] & 0xff,
@@ -372,7 +372,7 @@ static av_always_inline int get_dst_color_err(PaletteUseContext *s,
uint32_t c, int *er, int *eg, int *eb,
const enum color_search_method search_method)
{
const uint8_t a = c >> 24 & 0xff;
const uint8_t a = c >> 24;
const uint8_t r = c >> 16 & 0xff;
const uint8_t g = c >> 8 & 0xff;
const uint8_t b = c & 0xff;
@@ -411,7 +411,7 @@ static av_always_inline int set_frame(PaletteUseContext *s, AVFrame *out, AVFram
if (dither == DITHERING_BAYER) {
const int d = s->ordered_dither[(y & 7)<<3 | (x & 7)];
const uint8_t a8 = src[x] >> 24 & 0xff;
const uint8_t a8 = src[x] >> 24;
const uint8_t r8 = src[x] >> 16 & 0xff;
const uint8_t g8 = src[x] >> 8 & 0xff;
const uint8_t b8 = src[x] & 0xff;
@@ -483,7 +483,7 @@ static av_always_inline int set_frame(PaletteUseContext *s, AVFrame *out, AVFram
if ( down) src[src_linesize + x ] = dither_color(src[src_linesize + x ], er, eg, eb, 1, 2);
} else {
const uint8_t a = src[x] >> 24 & 0xff;
const uint8_t a = src[x] >> 24;
const uint8_t r = src[x] >> 16 & 0xff;
const uint8_t g = src[x] >> 8 & 0xff;
const uint8_t b = src[x] & 0xff;
@@ -630,7 +630,7 @@ static int get_next_color(const uint8_t *color_used, const uint32_t *palette,
for (i = 0; i < AVPALETTE_COUNT; i++) {
const uint32_t c = palette[i];
const uint8_t a = c >> 24 & 0xff;
const uint8_t a = c >> 24;
const uint8_t r = c >> 16 & 0xff;
const uint8_t g = c >> 8 & 0xff;
const uint8_t b = c & 0xff;
@@ -700,7 +700,7 @@ static int colormap_insert(struct color_node *map,
node = &map[cur_id];
node->split = component;
node->palette_id = pal_id;
node->val[0] = c>>24 & 0xff;
node->val[0] = c>>24;
node->val[1] = c>>16 & 0xff;
node->val[2] = c>> 8 & 0xff;
node->val[3] = c & 0xff;