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lavc/ccaption_dec: improve default style 

Use monospaced font, and a black box outline.
This commit is contained in:
Clément Bœsch 2016-01-10 16:19:50 +01:00
parent d86d7b2486
commit 6d32628bf3
6 changed files with 20 additions and 8 deletions
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7
libavcodec/ass.c
View File

@ -30,7 +30,7 @@ int ff_ass_subtitle_header(AVCodecContext *avctx,
const char *font, int font_size,
int color, int back_color,
int bold, int italic, int underline,
int alignment)
int border_style, int alignment)
{
avctx->subtitle_header = av_asprintf(
"[Script Info]\r\n"
@ -59,7 +59,7 @@ int ff_ass_subtitle_header(AVCodecContext *avctx,
"%d,%d,%d,0," /* Bold, Italic, Underline, StrikeOut */
"100,100," /* Scale{X,Y} */
"0,0," /* Spacing, Angle */
"1,1,0," /* BorderStyle, Outline, Shadow */
"%d,1,0," /* BorderStyle, Outline, Shadow */
"%d,10,10,10," /* Alignment, Margin[LRV] */
"0\r\n" /* Encoding */
@ -69,7 +69,7 @@ int ff_ass_subtitle_header(AVCodecContext *avctx,
!(avctx->flags & AV_CODEC_FLAG_BITEXACT) ? AV_STRINGIFY(LIBAVCODEC_VERSION) : "",
ASS_DEFAULT_PLAYRESX, ASS_DEFAULT_PLAYRESY,
font, font_size, color, color, back_color, back_color,
-bold, -italic, -underline, alignment);
-bold, -italic, -underline, border_style, alignment);
if (!avctx->subtitle_header)
return AVERROR(ENOMEM);
@ -86,6 +86,7 @@ int ff_ass_subtitle_header_default(AVCodecContext *avctx)
ASS_DEFAULT_BOLD,
ASS_DEFAULT_ITALIC,
ASS_DEFAULT_UNDERLINE,
ASS_DEFAULT_BORDERSTYLE,
ASS_DEFAULT_ALIGNMENT);
}

3
libavcodec/ass.h
View File

@ -40,6 +40,7 @@
#define ASS_DEFAULT_ITALIC 0
#define ASS_DEFAULT_UNDERLINE 0
#define ASS_DEFAULT_ALIGNMENT 2
#define ASS_DEFAULT_BORDERSTYLE 1
/** @} */
/**
@ -61,7 +62,7 @@ int ff_ass_subtitle_header(AVCodecContext *avctx,
const char *font, int font_size,
int color, int back_color,
int bold, int italic, int underline,
int alignment);
int border_style, int alignment);
/**
* Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS

10
libavcodec/ccaption_dec.c
View File

@ -145,7 +145,15 @@ static av_cold int init_decoder(AVCodecContext *avctx)
/* taking by default roll up to 2 */
ctx->mode = CCMODE_ROLLUP;
ctx->rollup = 2;
ret = ff_ass_subtitle_header_default(avctx);
ret = ff_ass_subtitle_header(avctx, "Monospace",
ASS_DEFAULT_FONT_SIZE,
ASS_DEFAULT_COLOR,
ASS_DEFAULT_BACK_COLOR,
ASS_DEFAULT_BOLD,
ASS_DEFAULT_ITALIC,
ASS_DEFAULT_UNDERLINE,
3,
ASS_DEFAULT_ALIGNMENT);
if (ret < 0) {
return ret;
}

3
libavcodec/microdvddec.c
View File

@ -370,7 +370,8 @@ static int microdvd_init(AVCodecContext *avctx)
}
return ff_ass_subtitle_header(avctx, font_buf.str, font_size, color,
ASS_DEFAULT_BACK_COLOR, bold, italic,
underline, alignment);
underline, ASS_DEFAULT_BORDERSTYLE,
alignment);
}
AVCodec ff_microdvd_decoder = {

3
libavcodec/movtextdec.c
View File

@ -413,7 +413,8 @@ static int mov_text_init(AVCodecContext *avctx) {
if (ret == 0) {
return ff_ass_subtitle_header(avctx, m->d.font, m->d.fontsize, m->d.color,
m->d.back_color, m->d.bold, m->d.italic,
m->d.underline, m->d.alignment);
m->d.underline, ASS_DEFAULT_BORDERSTYLE,
m->d.alignment);
} else
return ff_ass_subtitle_header_default(avctx);
}

2
tests/ref/fate/sub-cc
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,Arial,16,&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,1,1,0,2,10,10,10,0
Style: Default,Arial,16,&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,3,1,0,2,10,10,10,0
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text