[FFmpeg-devel] [PATCH 2/3] lavc/ccaption_dec: use ff_parity()
Clément Bœsch
u at pkh.me
Sun Jan 3 20:21:01 CET 2016
---
libavcodec/ccaption_dec.c | 38 ++------------------------------------
1 file changed, 2 insertions(+), 36 deletions(-)
diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c
index 9f67caa..c39fefd 100644
--- a/libavcodec/ccaption_dec.c
+++ b/libavcodec/ccaption_dec.c
@@ -101,40 +101,6 @@ 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];
@@ -238,10 +204,10 @@ 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;
}
}
--
2.6.4
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