106 lines
2.0 KiB
C
106 lines
2.0 KiB
C
#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <linux/dvb/dmx.h>
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#include <linux/dvb/frontend.h>
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#include <linux/dvb/video.h>
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char line_start[16] = "";
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char line_end[16] = "\r";
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uint32_t cc_errors = 0;
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uint32_t packets = 0;
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uint32_t payload_packets = 0;
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uint32_t packet_errors = 0;
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uint8_t cc[8192] = { 0 };
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void proc_ts(int i, uint8_t *buf)
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{
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uint16_t pid= 0x1fff& ((buf[1] << 8) | buf[2]);
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uint8_t ccin = buf[3] & 0x1f;
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if( buf[0] == 0x47 && (buf[1] & 0x80) == 0) {
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if( pid != 8191 ) {
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if (ccin & 0x10) {
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if( cc[pid] != 0 ) {
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// TODO: 1 repetition allowed
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if ((((cc[pid] + 1) & 0x0F) != (ccin & 0x0F)) ) {
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cc_errors += 1;
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printf("%04x: %u != %u\n", pid, (cc[pid] + 1) & 0x0F, ccin & 0x0F);
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}
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}
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cc[pid] = ccin;
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}
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payload_packets += 1;
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}
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} else
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packet_errors += 1;
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if( (packets & 0x3FFF ) == 0) {
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printf("%s Packets: %12u non null %12u, errors: %12u, CC errors: %12u%s",
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line_start, packets, payload_packets, packet_errors, cc_errors, line_end);
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fflush(stdout);
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}
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packets += 1;
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}
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#define TSBUFSIZE (100*188)
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void citest(char* n)
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{
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uint8_t *buf;
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uint8_t id;
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int i, nts;
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int len;
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int ts=open(n, O_RDONLY);
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buf=(uint8_t *)malloc(TSBUFSIZE);
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while(1) {
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len=read(ts, buf, TSBUFSIZE);
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if (len<0) {
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continue;
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}
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if (buf[0]!=0x47) {
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read(ts, buf, 1);
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continue;
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}
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if (len%188) { /* should not happen */
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printf("blah\n");
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continue;
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}
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nts=len/188;
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for (i=0; i<nts; i++)
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proc_ts(i, buf+i*188);
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}
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}
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int main(int argc, char* argv[])
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{
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if( argc < 2 )
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{
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printf("tscheck <file>|<device> [<display line>]\n");
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exit(0);
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}
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if( argc > 2 )
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{
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int line = atoi(argv[2]);
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if( line >= 0 && line < 64 )
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{
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snprintf(line_start,sizeof(line_start)-1,"\0337\033[%d;0H",line);
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strncpy(line_end,"\0338",sizeof(line_end)-1);
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}
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}
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citest(argv[1]);
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}
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