diff options
Diffstat (limited to 'sub_cc.c')
| -rw-r--r-- | sub_cc.c | 48 |
1 files changed, 24 insertions, 24 deletions
@@ -2,11 +2,11 @@ * decoder for Closed Captions * * This decoder relies on MPlayer's OSD to display subtitles. - * Be warned that the decoding is somewhat preliminary, though it basically works. - * - * Most notably, only the text information is decoded as of now, discarding color, - * background and position info (see source below). - * + * Be warned that decoding is somewhat preliminary, though it basically works. + * + * Most notably, only the text information is decoded as of now, discarding + * color, background and position info (see source below). + * * by Matteo Giani * * uses source from the xine closed captions decoder @@ -90,8 +90,8 @@ static void scroll_buffer(subtitle* buf) buf->lines--; } } - - + + void subcc_init(void) { int i; @@ -108,7 +108,7 @@ void subcc_init(void) static void append_char(char c) { if(!bb->lines) {bb->lines++; cursor_pos=0;} - if(bb->text[bb->lines - 1]==NULL) + if(bb->text[bb->lines - 1]==NULL) { bb->text[bb->lines - 1]=malloc(CC_MAX_LINE_LENGTH); memset(bb->text[bb->lines - 1],0,CC_MAX_LINE_LENGTH); @@ -126,7 +126,7 @@ static void append_char(char c) } } } - else + else { if(cursor_pos==CC_MAX_LINE_LENGTH-1) { @@ -157,7 +157,7 @@ static void display_buffer(subtitle * buf) static void cc_decode_EIA608(unsigned short int data) { - + static unsigned short int lastcode=0x0000; unsigned char c1 = data & 0x7f; unsigned char c2 = (data >> 8) & 0x7f; @@ -180,13 +180,13 @@ static void cc_decode_EIA608(unsigned short int data) switch(c1) { case 0x10: break; // ext attribute - case 0x11: - if((c2 & 0x30)==0x30) + case 0x11: + if((c2 & 0x30)==0x30) { //printf("[debug]:Special char (ignored)\n"); /*cc_decode_special_char()*/; } - else if (c2 & 0x20) + else if (c2 & 0x20) { //printf("[debug]: midrow_attr (ignored)\n"); /*cc_decode_midrow_attr()*/; @@ -223,8 +223,8 @@ static void cc_decode_EIA608(unsigned short int data) } } } - } - lastcode=data; + } + lastcode=data; } static void subcc_decode(unsigned char *inputbuffer, unsigned int inputlength) @@ -247,13 +247,13 @@ static void subcc_decode(unsigned char *inputbuffer, unsigned int inputlength) * 0x00 is padding, followed by 2 more 0x00. * * 0x01 always seems to appear at the beginning, always seems to - * be followed by 0xf8, 8-bit number. + * be followed by 0xf8, 8-bit number. * The lower 7 bits of this 8-bit number seem to denote the * number of code triplets that follow. - * The most significant bit denotes whether the Line 21 field 1 + * The most significant bit denotes whether the Line 21 field 1 * captioning information is at odd or even triplet offsets from this * beginning triplet. 1 denotes odd offsets, 0 denotes even offsets. - * + * * Most captions are encoded with odd offsets, so this is what we * will assume. * @@ -276,18 +276,18 @@ static void subcc_decode(unsigned char *inputbuffer, unsigned int inputlength) #endif break; } - + data1 = *(current+1); data2 = *(current + 2); current++; curbytes++; - + switch (cc_code) { case 0xfe: /* expect 2 byte encoding (perhaps CC3, CC4?) */ /* ignore for time being */ skip = 2; break; - + case 0xff: /* expect EIA-608 CC1/CC2 encoding */ // FIXME check parity! @@ -296,12 +296,12 @@ static void subcc_decode(unsigned char *inputbuffer, unsigned int inputlength) cc_decode_EIA608(data1 | (data2 << 8)); skip = 5; break; - + case 0x00: /* This seems to be just padding */ skip = 2; break; - + case 0x01: odd_offset = data2 & 0x80; if (odd_offset) @@ -309,7 +309,7 @@ static void subcc_decode(unsigned char *inputbuffer, unsigned int inputlength) else skip = 5; break; - + default: //#ifdef LOG_DEBUG fprintf(stderr, "Unknown CC encoding: %x\n", cc_code); |