#define SCREEN_ROWS 15
#define SCREEN_COLUMNS 32
-#define SET_FLAG(var, val) ( var |= ( 1 << (val) ) )
-#define UNSET_FLAG(var, val) ( var &= ~( 1 << (val)) )
-#define CHECK_FLAG(var, val) ( (var) & (1 << (val) ) )
+#define SET_FLAG(var, val) ( (var) |= ( 1 << (val)) )
+#define UNSET_FLAG(var, val) ( (var) &= ~( 1 << (val)) )
+#define CHECK_FLAG(var, val) ( (var) & ( 1 << (val)) )
/*
* TODO list
CCMODE_TEXT,
};
-enum cc_color_code
-{
+enum cc_color_code {
CCCOL_WHITE,
CCCOL_GREEN,
CCCOL_BLUE,
CCCOL_TRANSPARENT,
};
-enum cc_font
-{
+enum cc_font {
CCFONT_REGULAR,
CCFONT_ITALICS,
CCFONT_UNDERLINED,
static const unsigned char pac2_attribs[][3] = // Color, font, ident
{
- { CCCOL_WHITE, CCFONT_REGULAR, 0 }, // 0x40 || 0x60
- { CCCOL_WHITE, CCFONT_UNDERLINED, 0 }, // 0x41 || 0x61
- { CCCOL_GREEN, CCFONT_REGULAR, 0 }, // 0x42 || 0x62
- { CCCOL_GREEN, CCFONT_UNDERLINED, 0 }, // 0x43 || 0x63
- { CCCOL_BLUE, CCFONT_REGULAR, 0 }, // 0x44 || 0x64
- { CCCOL_BLUE, CCFONT_UNDERLINED, 0 }, // 0x45 || 0x65
- { CCCOL_CYAN, CCFONT_REGULAR, 0 }, // 0x46 || 0x66
- { CCCOL_CYAN, CCFONT_UNDERLINED, 0 }, // 0x47 || 0x67
- { CCCOL_RED, CCFONT_REGULAR, 0 }, // 0x48 || 0x68
- { CCCOL_RED, CCFONT_UNDERLINED, 0 }, // 0x49 || 0x69
- { CCCOL_YELLOW, CCFONT_REGULAR, 0 }, // 0x4a || 0x6a
- { CCCOL_YELLOW, CCFONT_UNDERLINED, 0 }, // 0x4b || 0x6b
- { CCCOL_MAGENTA, CCFONT_REGULAR, 0 }, // 0x4c || 0x6c
- { CCCOL_MAGENTA, CCFONT_UNDERLINED, 0 }, // 0x4d || 0x6d
- { CCCOL_WHITE, CCFONT_ITALICS, 0 }, // 0x4e || 0x6e
- { CCCOL_WHITE, CCFONT_UNDERLINED_ITALICS, 0 }, // 0x4f || 0x6f
- { CCCOL_WHITE, CCFONT_REGULAR, 0 }, // 0x50 || 0x70
- { CCCOL_WHITE, CCFONT_UNDERLINED, 0 }, // 0x51 || 0x71
- { CCCOL_WHITE, CCFONT_REGULAR, 4 }, // 0x52 || 0x72
- { CCCOL_WHITE, CCFONT_UNDERLINED, 4 }, // 0x53 || 0x73
- { CCCOL_WHITE, CCFONT_REGULAR, 8 }, // 0x54 || 0x74
- { CCCOL_WHITE, CCFONT_UNDERLINED, 8 }, // 0x55 || 0x75
- { CCCOL_WHITE, CCFONT_REGULAR, 12 }, // 0x56 || 0x76
- { CCCOL_WHITE, CCFONT_UNDERLINED, 12 }, // 0x57 || 0x77
- { CCCOL_WHITE, CCFONT_REGULAR, 16 }, // 0x58 || 0x78
- { CCCOL_WHITE, CCFONT_UNDERLINED, 16 }, // 0x59 || 0x79
- { CCCOL_WHITE, CCFONT_REGULAR, 20 }, // 0x5a || 0x7a
- { CCCOL_WHITE, CCFONT_UNDERLINED, 20 }, // 0x5b || 0x7b
- { CCCOL_WHITE, CCFONT_REGULAR, 24 }, // 0x5c || 0x7c
- { CCCOL_WHITE, CCFONT_UNDERLINED, 24 }, // 0x5d || 0x7d
- { CCCOL_WHITE, CCFONT_REGULAR, 28 }, // 0x5e || 0x7e
- { CCCOL_WHITE, CCFONT_UNDERLINED, 28 } // 0x5f || 0x7f
+ { CCCOL_WHITE, CCFONT_REGULAR, 0 }, // 0x40 || 0x60
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 0 }, // 0x41 || 0x61
+ { CCCOL_GREEN, CCFONT_REGULAR, 0 }, // 0x42 || 0x62
+ { CCCOL_GREEN, CCFONT_UNDERLINED, 0 }, // 0x43 || 0x63
+ { CCCOL_BLUE, CCFONT_REGULAR, 0 }, // 0x44 || 0x64
+ { CCCOL_BLUE, CCFONT_UNDERLINED, 0 }, // 0x45 || 0x65
+ { CCCOL_CYAN, CCFONT_REGULAR, 0 }, // 0x46 || 0x66
+ { CCCOL_CYAN, CCFONT_UNDERLINED, 0 }, // 0x47 || 0x67
+ { CCCOL_RED, CCFONT_REGULAR, 0 }, // 0x48 || 0x68
+ { CCCOL_RED, CCFONT_UNDERLINED, 0 }, // 0x49 || 0x69
+ { CCCOL_YELLOW, CCFONT_REGULAR, 0 }, // 0x4a || 0x6a
+ { CCCOL_YELLOW, CCFONT_UNDERLINED, 0 }, // 0x4b || 0x6b
+ { CCCOL_MAGENTA, CCFONT_REGULAR, 0 }, // 0x4c || 0x6c
+ { CCCOL_MAGENTA, CCFONT_UNDERLINED, 0 }, // 0x4d || 0x6d
+ { CCCOL_WHITE, CCFONT_ITALICS, 0 }, // 0x4e || 0x6e
+ { CCCOL_WHITE, CCFONT_UNDERLINED_ITALICS, 0 }, // 0x4f || 0x6f
+ { CCCOL_WHITE, CCFONT_REGULAR, 0 }, // 0x50 || 0x70
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 0 }, // 0x51 || 0x71
+ { CCCOL_WHITE, CCFONT_REGULAR, 4 }, // 0x52 || 0x72
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 4 }, // 0x53 || 0x73
+ { CCCOL_WHITE, CCFONT_REGULAR, 8 }, // 0x54 || 0x74
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 8 }, // 0x55 || 0x75
+ { CCCOL_WHITE, CCFONT_REGULAR, 12 }, // 0x56 || 0x76
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 12 }, // 0x57 || 0x77
+ { CCCOL_WHITE, CCFONT_REGULAR, 16 }, // 0x58 || 0x78
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 16 }, // 0x59 || 0x79
+ { CCCOL_WHITE, CCFONT_REGULAR, 20 }, // 0x5a || 0x7a
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 20 }, // 0x5b || 0x7b
+ { CCCOL_WHITE, CCFONT_REGULAR, 24 }, // 0x5c || 0x7c
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 24 }, // 0x5d || 0x7d
+ { CCCOL_WHITE, CCFONT_REGULAR, 28 }, // 0x5e || 0x7e
+ { CCCOL_WHITE, CCFONT_UNDERLINED, 28 } // 0x5f || 0x7f
/* total 32 entries */
};
+
/* 0-255 needs 256 spaces */
static const uint8_t parity_table[256] = { 0, 1, 1, 0, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 1, 0,
0, 1, 1, 0, 1, 0, 0, 1,
0, 1, 1, 0, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 1, 0 };
+
struct Screen {
/* +1 is used to compensate null character of string */
uint8_t characters[SCREEN_ROWS][SCREEN_COLUMNS+1];
av_buffer_unref(&ctx->pktbuf);
return 0;
}
+
/**
* @param ctx closed caption context just to print log
*/
return AVERROR_INVALIDDATA;
}
}
+
/**
* This function after validating parity bit, also remove it from data pair.
* The first byte doesn't pass parity, we replace it with a solid blank
if(ret == 0)
ctx->cursor_column++;
}
+
static void handle_pac( CCaptionSubContext *ctx, uint8_t hi, uint8_t lo )
{
static const int8_t row_map[] = {
ctx->end_time = pts;
return ret;
}
+
static int handle_eoc(CCaptionSubContext *ctx, int64_t pts)
{
int ret;
ctx->cursor_column = 0;
return ret;
}
+
static void handle_delete_end_of_row( CCaptionSubContext *ctx, char hi, char lo)
{
struct Screen *screen = get_writing_screen(ctx);
write_char(ctx, row, ctx->cursor_column, 0);
}
+
static void handle_char(CCaptionSubContext *ctx, char hi, char lo, int64_t pts)
{
struct Screen *screen = get_writing_screen(ctx);
av_log(ctx, AV_LOG_DEBUG,"(%c,%c)\n",hi,lo);
#endif
}
+
static int process_cc608(CCaptionSubContext *ctx, int64_t pts, uint8_t hi, uint8_t lo)
{
int ret = 0;
return ret;
}
+
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
{
CCaptionSubContext *ctx = avctx->priv_data;
*got_sub = sub->num_rects > 0;
return ret;
}
+
static const AVOption options[] = {
{NULL}
};
+
static const AVClass ccaption_dec_class = {
.class_name = "Closed caption Decoder",
.item_name = av_default_item_name,