*/
}
+static void mov_text_alpha_set(MovTextContext *s, uint8_t alpha)
+{
+ if (!s->style_attributes_temp ||
+ (s->style_attributes_temp->style_color & 0xff) == alpha) {
+ // color hasn't changed
+ return;
+ }
+ if (mov_text_style_start(s))
+ s->style_attributes_temp->style_color =
+ (s->style_attributes_temp->style_color & 0xffffff00) | alpha;
+}
+
+static void mov_text_alpha_cb(void *priv, int alpha, int alpha_id)
+{
+ MovTextContext *s = priv;
+
+ if (alpha_id == 1) // primary alpha changes
+ mov_text_alpha_set(s, 255 - alpha);
+}
+
static void mov_text_end_cb(void *priv)
{
// End of text, close any open style record
static void mov_text_dialog(MovTextContext *s, ASSDialog *dialog)
{
ASSStyle * style = ff_ass_style_get(s->ass_ctx, dialog->style);
- uint8_t style_flags;
+ uint8_t style_flags, alpha;
uint32_t color;
if (style) {
mov_text_style_set(s, style_flags);
color = BGR_TO_RGB(style->primary_color & 0xffffff) << 8;
mov_text_color_set(s, color);
+ alpha = 255 - ((uint32_t)style->primary_color >> 24);
+ mov_text_alpha_set(s, alpha);
}
}
.new_line = mov_text_new_line_cb,
.style = mov_text_style_cb,
.color = mov_text_color_cb,
+ .alpha = mov_text_alpha_cb,
.end = mov_text_end_cb,
};