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Code Issues Releases Activity

avfilter/vf_paletteuse: add option to use new palette for each output frame

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This commit is contained in:
Paul B Mahol
2016-09-02 22:40:34 +02:00
parent 93ae68d62a
commit b7e78c75cc
1 changed files with 12 additions and 1 deletions
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13
libavfilter/vf_paletteuse.c
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@@ -86,6 +86,7 @@ typedef struct PaletteUseContext {
uint32_t palette[AVPALETTE_COUNT];
int palette_loaded;
int dither;
int new;
set_frame_func set_frame;
int bayer_scale;
int ordered_dither[8*8];
@@ -122,6 +123,7 @@ static const AVOption paletteuse_options[] = {
{ "bruteforce", "brute-force into the palette", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_SEARCH_BRUTEFORCE}, INT_MIN, INT_MAX, FLAGS, "search" },
{ "mean_err", "compute and print mean error", OFFSET(calc_mean_err), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ "debug_accuracy", "test color search accuracy", OFFSET(debug_accuracy), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ "new", "take new palette for each output frame", OFFSET(new), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ NULL }
};
@@ -928,6 +930,14 @@ static void load_palette(PaletteUseContext *s, const AVFrame *palette_frame)
const uint32_t *p = (const uint32_t *)palette_frame->data[0];
const int p_linesize = palette_frame->linesize[0] >> 2;
if (s->new) {
memset(s->palette, 0, sizeof(s->palette));
memset(s->map, 0, sizeof(s->map));
for (i = 0; i < CACHE_SIZE; i++)
av_freep(&s->cache[i].entries);
memset(s->cache, 0, sizeof(s->cache));
}
i = 0;
for (y = 0; y < palette_frame->height; y++) {
for (x = 0; x < palette_frame->width; x++)
@@ -937,7 +947,8 @@ static void load_palette(PaletteUseContext *s, const AVFrame *palette_frame)
load_colormap(s);
s->palette_loaded = 1;
if (!s->new)
s->palette_loaded = 1;
}
static AVFrame *load_apply_palette(AVFilterContext *ctx, AVFrame *main,