diff options
Diffstat (limited to 'src/mot-encoder.c')
| -rw-r--r-- | src/mot-encoder.c | 57 |
1 files changed, 34 insertions, 23 deletions
diff --git a/src/mot-encoder.c b/src/mot-encoder.c index 6b410c1..66ef5ea 100644 --- a/src/mot-encoder.c +++ b/src/mot-encoder.c @@ -95,6 +95,10 @@ void writeMotPAD(int output_fd, void create_dls_datagroup (char* text, int padlen, unsigned char*** p_dlsdg, int* p_numdg); void writeDLS(int output_fd, const char* dls_file, int padlen); +int get_xpadlengthmask(int padlen); +#define ALLOWED_PADLEN "23, 26, 34, 42, 58" + + void usage(char* name) { fprintf(stderr, "DAB MOT encoder %s for slideshow and DLS\n\n" @@ -118,7 +122,8 @@ void usage(char* name) " Default: /tmp/pad.fifo\n" " -t, --dls=FILENAME Fifo or file to read DLS text from.\n" " Default: /tmp/dls.txt\n" - " -p, --pad=LENGTH Set the pad length. Max value:58\n" + " -p, --pad=LENGTH Set the pad length.\n" + " Possible values: " ALLOWED_PADLEN "\n" " Default: 58\n" ); } @@ -178,8 +183,9 @@ int main(int argc, char *argv[]) } } - if (padlen <= 0 || padlen > 58) { - fprintf(stderr, "Error: pad length %d out of bounds (0 < padlen <= 58)\n", + if (get_xpadlengthmask(padlen) == -1) { + fprintf(stderr, "Error: pad length %d invalid: Possible values: " + ALLOWED_PADLEN "\n", padlen); return 2; } @@ -430,16 +436,7 @@ void writeMotPAD(int output_fd, unsigned short int crc; - if (padlen == 23) - xpadlengthmask = 3; - else if (padlen == 26) - xpadlengthmask = 4; - else if (padlen == 34) - xpadlengthmask = 5; - else if (padlen == 42) - xpadlengthmask = 6; - else if (padlen == 58) - xpadlengthmask = 7; + xpadlengthmask = get_xpadlengthmask(padlen); /* // Write Data Group Length Indicator @@ -648,16 +645,7 @@ void create_dls_datagroup (char* text, int padlen, UCHAR*** p_dlsdg, int* p_numd fprintf(stderr, "Number of DLS segments: %d\n", numseg); fprintf(stderr, "Number of DLS data groups: %d\n", numdg); - if (padlen == 23) - xpadlengthmask = 3; - else if (padlen == 26) - xpadlengthmask = 4; - else if (padlen == 34) - xpadlengthmask = 5; - else if (padlen == 42) - xpadlengthmask = 6; - else if (padlen == 58) - xpadlengthmask = 7; + xpadlengthmask = get_xpadlengthmask(padlen); *p_dlsdg = (UCHAR**) malloc(numdg * sizeof(UCHAR*)); dlsdg = *p_dlsdg; @@ -853,3 +841,26 @@ void create_dls_datagroup (char* text, int padlen, UCHAR*** p_dlsdg, int* p_numd } } +int get_xpadlengthmask(int padlen) +{ + int xpadlengthmask; + + /* Don't forget to change ALLOWED_PADLEN + * if you change this check + */ + if (padlen == 23) + xpadlengthmask = 3; + else if (padlen == 26) + xpadlengthmask = 4; + else if (padlen == 34) + xpadlengthmask = 5; + else if (padlen == 42) + xpadlengthmask = 6; + else if (padlen == 58) + xpadlengthmask = 7; + else + xpadlengthmask = -1; // Error + + return xpadlengthmask; +} + |