static int analyze(const uint8_t *buf, int size, int packet_size, int *index, int probe) { int stat[TS_MAX_PACKET_SIZE]; int stat_all = 0; int i; int best_score = 0; memset(stat, 0, packet_size * sizeof(*stat)); for (i = 0; i < size - 3; i++) { if (buf[i] == 0x47 && (!probe || (!(buf[i + 1] & 0x80) && buf[i + 3] != 0x47))) { int x = i % packet_size; stat[x]++; stat_all++; if (stat[x] > best_score) { best_score = stat[x]; if (index) *index = x; } } } return best_score - FFMAX(stat_all - 10*best_score, 0)/10; }