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lavc/movtextdec: add alpha default to ass header colors

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Signed-off-by: Philip Langdale <philipl@overt.org>
This commit is contained in:
John Stebbins 2020-04-04 11:53:59 -06:00 committed by Philip Langdale
parent c0d3fea600
commit 91447ae3ba
2 changed files with 11 additions and 5 deletions
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14
libavcodec/movtextdec.c
View File

@ -55,7 +55,9 @@ typedef struct {
const char *font;
uint8_t fontsize;
int color;
uint8_t alpha;
int back_color;
uint8_t back_alpha;
uint8_t bold;
uint8_t italic;
uint8_t underline;
@ -186,7 +188,9 @@ static int mov_text_tx3g(AVCodecContext *avctx, MovTextContext *m)
}
// Background Color
m->d.back_color = AV_RB24(tx3g_ptr);
tx3g_ptr += 4;
tx3g_ptr += 3;
m->d.back_alpha = AV_RB8(tx3g_ptr);
tx3g_ptr += 1;
// BoxRecord
tx3g_ptr += 8;
// StyleRecord
@ -203,7 +207,9 @@ static int mov_text_tx3g(AVCodecContext *avctx, MovTextContext *m)
m->d.fontsize = *tx3g_ptr++;
// Primary color
m->d.color = AV_RB24(tx3g_ptr);
tx3g_ptr += 4;
tx3g_ptr += 3;
m->d.alpha = AV_RB8(tx3g_ptr);
tx3g_ptr += 1;
// FontRecord
// FontRecord Size
tx3g_ptr += 4;
@ -463,8 +469,8 @@ static int mov_text_init(AVCodecContext *avctx) {
ret = mov_text_tx3g(avctx, m);
if (ret == 0) {
return ff_ass_subtitle_header(avctx, m->d.font, m->d.fontsize,
RGB_TO_BGR(m->d.color),
RGB_TO_BGR(m->d.back_color),
(255 - m->d.alpha) << 24 | RGB_TO_BGR(m->d.color),
(255 - m->d.back_alpha) << 24 | RGB_TO_BGR(m->d.back_color),
m->d.bold, m->d.italic, m->d.underline,
ASS_DEFAULT_BORDERSTYLE, m->d.alignment);
} else

2
tests/ref/fate/sub-movtext
View File

@ -6,7 +6,7 @@ PlayResY: 288
[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Serif,18,&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,1,1,0,2,10,10,10,0
Style: Default,Serif,18,&Hffffff,&Hffffff,&Hff000000,&Hff000000,0,0,0,0,100,100,0,0,1,1,0,2,10,10,10,0
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text