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lavc/ccaption_dec: use ff_parity()

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This commit is contained in:
Clément Bœsch 2016-01-03 18:31:54 +01:00
parent 2ce29d1765
commit 00e96613f3
1 changed files with 2 additions and 36 deletions
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38
libavcodec/ccaption_dec.c
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@ -100,40 +100,6 @@ static const unsigned char pac2_attribs[32][3] = // Color, font, ident
/* 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,
1, 0, 0, 1, 0, 1, 1, 0,
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,
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,
0, 1, 1, 0, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 1, 0,
1, 0, 0, 1, 0, 1, 1, 0,
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,
0, 1, 1, 0, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 1, 0,
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,
1, 0, 0, 1, 0, 1, 1, 0,
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];
@ -236,10 +202,10 @@ static int validate_cc_data_pair(uint8_t *cc_data_pair)
// if EIA-608 data then verify parity.
if (cc_type==0 || cc_type==1) {
if (!parity_table[cc_data_pair[2]]) {
if (!ff_parity(cc_data_pair[2])) {
return AVERROR_INVALIDDATA;
}
if (!parity_table[cc_data_pair[1]]) {
if (!ff_parity(cc_data_pair[1])) {
cc_data_pair[1]=0x7F;
}
}